WO2023162116A1 - Tool magazine and machine tool - Google Patents

Tool magazine and machine tool Download PDF

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Publication number
WO2023162116A1
WO2023162116A1 PCT/JP2022/007774 JP2022007774W WO2023162116A1 WO 2023162116 A1 WO2023162116 A1 WO 2023162116A1 JP 2022007774 W JP2022007774 W JP 2022007774W WO 2023162116 A1 WO2023162116 A1 WO 2023162116A1
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WO
WIPO (PCT)
Prior art keywords
tool
state
holding portion
section
axial direction
Prior art date
Application number
PCT/JP2022/007774
Other languages
French (fr)
Japanese (ja)
Inventor
辰哉 合澤
忠治 森本
Original Assignee
Dmg森精機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dmg森精機株式会社 filed Critical Dmg森精機株式会社
Priority to PCT/JP2022/007774 priority Critical patent/WO2023162116A1/en
Publication of WO2023162116A1 publication Critical patent/WO2023162116A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
    • B23Q3/157—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling of rotary tools

Definitions

  • This invention relates to tool magazines and machine tools.
  • Patent Document 1 discloses a horizontal spindle, a magazine stocker means arranged on the ceiling of a space above the horizontal spindle, and stocking a large number of line boring bars, and a magazine stocker means.
  • a machine tool equipped with a boring bar conveying means for conveying a line boring bar stocked in the machine to a replacement position aligned with the axis of a horizontal spindle, or to a maintenance position provided at the lower part of one side of the machine body. ing.
  • an object of the present invention is to solve the above-described problems, and to provide a tool magazine that allows an operator to attach and detach tools with good workability, and a machine tool equipped with such a tool magazine. It is to be.
  • a tool magazine comprises a tool storage section for storing a plurality of tools, and a support member for supporting the tool storage section.
  • the tool storage section includes a tool holding section that detachably holds a plurality of tools, and a connection section that is provided at a position away from the tool holding section in the axial direction of the tools held by the tool holding section.
  • the connecting portion the tool storage portion is in a first state in which the axial direction of the tool held by the tool holding portion is horizontal, and the axial direction of the tool held by the tool holding portion forms an angle with the horizontal direction. and is connected to the support member operably between a second state in which the tool holding portion is positioned below the connecting portion.
  • the axial direction of the tool held by the tool holding section forms an angle with the horizontal direction.
  • the tool held by the tool holding portion is in a standing posture.
  • the tool holding section is arranged below the connection section, so that the tool holding section that detachably holds a plurality of tools is arranged at a lower position. .
  • the axial direction of the tool held by the tool holding section is the vertical direction.
  • the tool magazine configured in this way, when the tool storage section is in the second state, it is possible to further improve workability when the operator attaches and detaches the tool to and from the tool holding section.
  • the connecting portion is configured such that the tool storage portion is rotatable about a first axis perpendicular to the axial direction of the tool held by the tool holding portion and parallel to the horizontal direction. connected to
  • the mechanism for operating the tool storage section between the first state and the second state can be configured simply.
  • the tool is a long boring bar.
  • the tool magazine configured in this way, even when the tool is a long boring bar with a long shaft length and a large weight, the operator can easily attach and detach the tool from the tool holder. Workability can be improved.
  • a machine tool includes any one of the tool magazines described above and a tool spindle for rotating the tools.
  • the axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state is parallel to the axial direction of the tool mounted on the tool spindle.
  • the tool storage further includes an automatic tool changing mechanism for exchanging tools between the tool holder and the tool spindle when the tool storage is in the first state.
  • the axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state is parallel to the axial direction of the tool mounted on the tool spindle. Therefore, the automatic tool changer can have a simple configuration.
  • the tool holding portion holds a plurality of tools so as to be arranged in an arc around the second axis.
  • the second axis is parallel to the axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state.
  • the machine tool configured in this way, it is possible to realize tool exchange between the tool holding section and the tool spindle by means of the automatic tool exchange mechanism including the turning mechanism section and the slide mechanism section.
  • the machine tool includes a cover body provided with an opening for partitioning and forming a processing area for the workpiece, and a cover provided at the opening and having an open state in which the opening is opened and a closed state in which the opening is closed. and a door portion operable therebetween.
  • the tool storage section is in the second state, the tool holding section faces the opening formed by the opening section in the open state.
  • the operator can move the tool holding section through the opening from the outside of the machining area. Workability can be improved when attaching and detaching the tool to and from.
  • the turning mechanism section moves the tool holding section to a first turning position where the replacement tool faces the tool spindle in its axial direction, and from the first turning position. is also pivoted to and from a second pivoted position located proximate to the opening.
  • the tool storage is operable between a first state and a second state when the tool holder is positioned in the second pivoted position.
  • the tool holding section when the tool storage section is in the first state, the tool holding section is turned from the first turning position to the second turning position, whereby the tool is held during machining of the workpiece. and the plurality of tools held by the tool holder can be moved away from the tool spindle. As a result, it is possible to suppress the reduction of the machining area due to the installation of the tool magazine. Further, when the tool holding portion is arranged at the second turning position, the tool holding portion and the plurality of tools held by the tool holding portion are moved from the first state to the second state. can be brought closer to the opening formed by the opening of the cover body. As a result, workability can be further improved when the operator attaches and detaches the tool from the outside of the machining area to and from the tool holder through the opening.
  • the tool holding section is positioned above the second axis.
  • the tool holding portion and the plurality of tools held by the tool holding portion can be further moved away from the tool spindle during work machining.
  • the turning mechanism section moves the tool holding section to a second turning position and a third turning position which is closer to the opening than the second turning position. Rotate to and from the swivel position.
  • the tool holding portion and the plurality of tools held by the tool holding portion can be brought closer to the opening formed by the opening of the cover body.
  • workability can be further improved when the operator attaches and detaches the tool from the outside of the machining area to and from the tool holder through the opening.
  • the machine tool further comprises a bed for supporting the tool magazine and the tool spindle.
  • the support member is provided separately from the floor on which the bed is installed and is connected to the bed.
  • the support member is provided separately from the floor surface, it is possible to prevent the support member from affecting the installation state of the bed with respect to the floor surface.
  • FIG. 1 is a perspective view showing a machine tool having a tool magazine according to an embodiment of the invention
  • FIG. FIG. 2 is a perspective view showing the internal structure of the machine tool in FIG. 1; It is a perspective view showing a tool magazine.
  • FIG. 4 is a sectional view showing the tool magazine in FIG. 3;
  • FIG. 4 is another sectional view showing the tool magazine in FIG. 3;
  • FIG. 10 is a perspective view showing the appearance of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position (the door section is open);
  • FIG. 4 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position;
  • FIG. 4 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position;
  • FIG. 5 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position;
  • FIG. 10 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position;
  • FIG. 11 is a perspective view showing the appearance of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position (the door section is open);
  • FIG. 11 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position;
  • FIG. 10 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position;
  • FIG. 4 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position;
  • FIG. 4 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position;
  • FIG. 4 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position;
  • FIG. 10 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (before ATC);
  • FIG. 10 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (after ATC);
  • FIG. 1 is a perspective view showing a machine tool equipped with a tool magazine according to an embodiment of the invention.
  • 2 is a perspective view showing the internal structure of the machine tool in FIG. 1.
  • FIG. 1 is a perspective view showing a machine tool equipped with a tool magazine according to an embodiment of the invention.
  • machine tool 100 is a machining center that processes a workpiece by bringing a rotating tool into contact with the workpiece. More specifically, the central axis of rotation of the tool extends horizontally. It is a horizontal machining center.
  • the machine tool 100 is an NC (Numerical Control) machine tool in which various operations for machining a workpiece are automated by numerical control by a computer.
  • NC Genetic Control
  • an axis parallel to the horizontal direction and parallel to the central axis of rotation of the tool is referred to as "Z-axis”
  • an axis parallel to the horizontal direction and perpendicular to the central axis of rotation of the tool is referred to as "Z-axis”
  • the axis parallel to the up-down direction (vertical direction) is called the "Y-axis”. 1 and 2, the diagonally lower left front direction is the “+Z axis direction”, and the diagonally upper right back direction is the "-Z axis direction”. 1 and 2, the diagonally lower right front direction is the "+X axis direction”, and the diagonal upper left back direction is the "-X axis direction”.
  • the upward direction is the “+Y axis direction” and the downward direction is the “ ⁇ Y axis direction”.
  • the machine tool 100 has a bed 11 , a column 12 , a tool spindle 16 and a table 31 .
  • the bed 11 is a base member for supporting the column 12, the tool spindle 16, the table 31, the tool magazine 10 described later, and the like, and is installed on the floor of the factory or the like.
  • the bed 11 is fixed to the floor at a plurality of locations (eg, three locations) using anchor bolts or the like.
  • Column 12 is erected on bed 11 .
  • the column 12 as a whole has a gate shape rising upward from the bed 11 .
  • the column 12 is arranged at the end of the bed 11 in the -Z-axis direction.
  • the tool spindle 16 is a device for rotating the tool.
  • the tool spindle 16 is supported by the column 12 via a saddle (not shown) movable in the X-axis direction with respect to the column 12 and a cross slide (not shown) movable in the Y-axis direction with respect to the saddle. It is
  • the tool spindle 16 can move in the X-axis direction and the Y-axis direction by saddle and cross slide operations.
  • the tool spindle 16 protrudes from the column 12 in the +Z-axis direction.
  • the tool spindle 16 consists of a cylindrical body extending on the rotation center axis 110 parallel to the Z-axis.
  • the tool spindle 16 is rotatable around the rotation center axis 110 by motor drive.
  • a tool for machining a workpiece in the machine tool 100 is attached to the tool spindle 16 .
  • the tool spindle 16 incorporates a clamping mechanism for detachably holding the tool. As the tool spindle 16 rotates, the tool attached to the tool spindle 16 rotates about the rotation center axis 110 .
  • the table 31 is provided on the bed 11.
  • the table 31 is provided at a position separated from the column 12 in the +Z-axis direction.
  • the table 31 is movable in the Z-axis direction with respect to the bed 11 .
  • the table 31 is a device for holding a work.
  • the table 31 holds the workpiece at a position facing the tool spindle 16 in the Z-axis direction.
  • a pallet P is detachably attached to the table 31 .
  • On the pallet P for example, jigs such as tombstones to which works are attached are mounted.
  • FIG. 2 shows a table 31 capable of turning the pallet P around a turning center axis 120 parallel to the X-axis
  • the table provided with the machine tool 100 is limited to this. not a thing
  • the machine tool 100 further has a cover body 21.
  • the cover body 21 defines the machining area 200 and forms the appearance of the machine tool 100 .
  • the machining area 200 is a space in which the workpiece is machined, and is sealed so that foreign matter such as chips or cutting oil resulting from the machining of the workpiece does not leak out of the machining area 200 .
  • the cover body 21 has a front cover portion 23 and a ceiling cover portion 22 .
  • the front cover portion 23 as a whole is made of a plate material arranged parallel to the Y-axis-Z-axis plane, and defines a processing area 200 at the end portion in the +X-axis direction.
  • the ceiling cover part 22 is made of a plate material arranged in parallel with the X-axis-Z-axis plane as a whole, and defines the processing area 200 (the ceiling part of the processing area 200) at the end in the +Y-axis direction.
  • the end of the ceiling cover portion 22 in the +X-axis direction is connected to the end (upper end) of the front cover portion 23 in the +Y-axis direction.
  • An opening 24 is provided in the cover body 21 .
  • the opening 24 forms an opening that opens the processing area 200 to the outside space.
  • the opening 24 has a front opening 24S and a ceiling opening 24T.
  • the front opening portion 24S is provided in the front cover portion 23 .
  • the front opening 24S opens at a position facing the tool spindle 16 in the X-axis direction.
  • the ceiling opening portion 24T is provided in the ceiling cover portion 22 .
  • the end of the ceiling opening 24T in the +X-axis direction continues to the end (upper end) of the front opening 24S in the +Y-axis direction.
  • the machine tool 100 further has a door portion 26.
  • the door portion 26 is provided in the opening portion 24 .
  • the door portion 26 is provided in the front opening portion 24S.
  • the door portion 26 can operate between an open state in which the opening portion 24 (front opening portion 24S) is opened and a closed state in which the opening portion 24 (front opening portion 24S) is closed.
  • the door portion 26 is slidable in the Z-axis direction between the open state and the closed state.
  • the machine tool 100 further has a movable cover 28.
  • the movable cover 28 is provided at the ceiling opening 24T.
  • the movable cover 28 is provided so as to partially block the opening formed by the ceiling opening 24T.
  • the movable cover 28 is connected to the door portion 26 .
  • the movable cover 28 slides in the Z-axis direction integrally with the door portion 26 as the door portion 26 moves between the open state and the closed state (see FIG. 6 described later).
  • the operator When accessing the processing area 200, the operator opens the door section 26 and stands at a position facing the opening formed by the front opening section 24S. At a position adjacent to the bed 11 in the X-axis direction, a step 13 is provided for the operator to stand at a position facing the opening formed by the front opening 24S.
  • FIG. 3 is a perspective view showing a tool magazine
  • FIG. 4 and 5 are sectional views showing the tool magazine in FIG. 3.
  • FIG.S. 1 to 5 show the tool magazine 10 when the tool storage section 50 is in the first state 50A and the first tool holding section 53 is arranged at the second turning position 53C. It is
  • machine tool 100 further has tool magazine 10 .
  • the tool magazine 10 is a device for storing tools T for machining workpieces.
  • the tool T has a shank portion Sh.
  • the shank portion Sh is composed of a shaft centered on the tool central axis 210 .
  • the shank portion Sh may be, for example, a BT shank, an HSK shank, or a CAPTO shank.
  • the axial direction of the tool central axis 210 corresponds to the axial direction of the tool T. As shown in FIG.
  • a clamping mechanism incorporated in the tool spindle 16 exerts a tensile force in the axial direction of the rotation center shaft 110 on the shank Sh, and the shank Sh is surface-constrained by the tool spindle 16, thereby clamping the tool T. is held by the tool spindle 16 .
  • the tool center axis 210 and the rotation center axis 110 extend straight in the Z-axis direction.
  • the tool T is a long boring bar for internal turning.
  • the long boring bar extends from the shank portion Sh in the axial direction of the tool center axis 210 in a bar shape, and has a form in which a throwaway tip is attached to the tip thereof.
  • the tools stored in the tool magazine 10 are not limited to long boring bars, and may be large-diameter tools such as milling cutters.
  • the machine tool 100 may also have a tool magazine for storing ordinary tools such as drills or end mills.
  • the tool magazine 10 has a tool storage section 50 and a support member 40.
  • the tool storage section 50 is configured to store a plurality of tools T. As shown in FIG.
  • the support member 40 supports the tool storage section 50 .
  • the support member 40 has a columnar shape extending in the Y-axis direction.
  • the support member 40 is provided separately from the floor on which the bed 11 is installed.
  • Support member 40 is connected to bed 11 .
  • the support member 40 is fastened to the side surface of the bed 11 facing the +X-axis direction using bolts or the like at a position spaced upward from the floor surface.
  • the support member 40 is provided with the edge cut off from the floor surface, so the support member 40 can be prevented from affecting the installation state of the bed 11 using anchor bolts or the like.
  • the tool storage section 50 has a first operating body 61, a second operating body 63, and a third operating body 51.
  • the first operating body 61 is connected to the support member 40 so as to be rotatable around the first shaft 140 .
  • the second operating body 63 is connected to the first operating body 61 so as to be rotatable about the second shaft 160 .
  • the third operating body 51 is connected to the second operating body 63 so as to be slidable in the axial direction of the second shaft 160 .
  • the first operating body 61 rotates around the first axis 140 integrally with the second operating body 63 and the third operating body 51 .
  • the second operating body 63 rotates around the second axis 160 integrally with the third operating body 51 .
  • the third operating body 51 slides alone in the axial direction of the second shaft 160 .
  • the third operating body 51 has a base portion 52 , a first tool holding portion 53 (corresponding to the “tool holding portion” in the present invention), a second tool holding portion 56 and a canopy portion 58 .
  • the base 52 is provided at a position spaced radially outward from the second shaft 160 .
  • the base portion 52 is made of a plate material extending in the axial direction of the second shaft 160 .
  • the eaves portion 58 extends from both ends of the base portion 52 in the circumferential direction of the second shaft 160 and has an eaves shape.
  • Each tool holding portion of the first tool holding portion 53 and the second tool holding portion 56 extends radially outward of the second shaft 160 from the base portion 52, and is made of a plate material whose thickness direction is the axial direction of the second shaft 160. .
  • the first tool holding portion 53 and the second tool holding portion 56 are spaced apart from each other in the axial direction of the second shaft 160 .
  • Each of the first tool holding part 53 and the second tool holding part 56 holds a plurality of tools T detachably. As shown in FIG. 5 , the plurality of tools T held by the first tool holding portion 53 and the second tool holding portion 56 are arranged on a curve of an arc 220 centered on the second axis 160 .
  • a tool central axis 210 of the tool T held by the first tool holding portion 53 and the second tool holding portion 56 extends in the axial direction of the second shaft 160 .
  • a tool center axis 210 of the tool T held by the first tool holding portion 53 and the second tool holding portion 56 intersects the arc 220 when viewed in the axial direction of the second shaft 160 .
  • a plurality of first tool insertion portions 54 are provided in the first tool holding portion 53 .
  • the first tool insertion portion 54 has a notch shape capable of receiving the shank portion Sh of the tool T. As shown in FIG.
  • the first tool insertion portion 54 has a notch shape that passes through the first tool holding portion 53 in the axial direction of the second shaft 160 and opens outward in the radial direction of the second shaft 160 .
  • a plurality of second tool insertion portions 57 are provided in the second tool holding portion 56 .
  • the second tool insertion portion 57 has a notch shape capable of receiving the bar portion of the tool T. As shown in FIG.
  • the second tool insertion portion 57 has a notch shape that passes through the second tool holding portion 56 in the axial direction of the second shaft 160 and opens outward in the radial direction of the second shaft 160 .
  • the plurality of second tool insertion portions 57 are arranged side by side with the plurality of first tool insertion portions 54 in the axial direction of the second shaft 160 .
  • the first tool holding part 53 supports the tool T in a planar direction perpendicular to the tool center axis 210 and in the axial direction of the tool center axis 210 .
  • the second tool holding portion 56 supports the tool T in a planar direction perpendicular to the tool central axis 210 . If the tool T can be held only by the first tool holding portion 53, the third operating body 51 may not be provided with the second tool holding portion 56.
  • FIG. 6 is a perspective view showing the appearance of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position (the door section is open).
  • FIG. 7 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position.
  • FIG. 8 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position.
  • FIG. 9 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position.
  • FIG. 10 is a perspective view showing the appearance of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position (the door section is open).
  • FIG. 11 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position.
  • FIG. 12 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position.
  • FIG. 13 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position.
  • FIG. 14 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position.
  • FIG. 15 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position.
  • FIG. 16 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (before ATC).
  • FIG. 17 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (after ATC).
  • the first operating body 61 has a connecting portion 65. As shown in FIG.
  • the connection portion 65 is a portion connected to the support member 40 in the tool storage portion 50 (first operating body 61).
  • the connecting portion 65 is located away from the first tool holding portion 53 in the axial direction of the tool T held by the first tool holding portion 53 (the axial direction of the tool central axis 210). is provided.
  • the connecting portion 65 is provided at a position between the first tool holding portion 53 and the second tool holding portion 56 in the axial direction of the tool T held by the first tool holding portion 53 .
  • the connecting portion 65 is provided at a position closer to the second tool holding portion 56 than the first tool holding portion 53 in the axial direction of the tool T held by the first tool holding portion 53 .
  • connection portion 65 is configured such that the tool storage portion 50 is in the first state 50A (FIGS. 1 to 7 and FIGS. 13 to 17) in which the axial direction of the tool T held by the first tool holding portion 53 is horizontal. ), the axial direction of the tool T held by the first tool holding portion 53 forms an angle with the horizontal direction, and the first tool holding portion 53 is arranged below the connecting portion 65. and a second state 50B (the state shown in FIGS. 8-12).
  • the first state 50A is the state of the tool storage section 50 during work machining, and corresponds to the home position of the tool storage section 50.
  • the first state 50A is also the state of the tool storage section 50 during automatic tool change between the tool magazine 10 and the tool spindle 16 .
  • the second state 50B is the state of the tool storage section 50 when the operator replaces the tools stored in the tool magazine 10 manually.
  • connection portion 65 is connected to the support member 40 so that the tool storage portion 50 can rotate around the first shaft 140 .
  • Tool storage 50 (first action body 61, second action body 63 and third action body 51) pivots about first axis 140 between first state 50A and second state 50B.
  • the first axis 140 extends in the horizontal direction (X-axis direction).
  • the connecting portion 65 is formed of a shaft centered on the first shaft 140 and connected to the support member 40 via a bearing (not shown).
  • the tool central axis 210 of the tool T held by the first tool holding section 53 moves within the plane of the Y-axis-Z-axis plane.
  • the first axis 140 is orthogonal to the axial direction of the tool T held by the first tool holding portion 53 .
  • First axis 140 is orthogonal to second axis 160 .
  • the tool magazine 10 further has an actuator 86.
  • Actuator 86 is connected to tool storage 50 .
  • Actuator 86 operates (pivots) tool storage section 50 with respect to support member 40 between first state 50A and second state 50B.
  • the actuator 86 consists of a hydraulic piston having a cylinder case 87 and a piston rod 88.
  • the piston rod 88 extends in one direction and is fitted in the cylinder case 87 .
  • the piston rod 88 is extended or shortened along its axial direction.
  • the cylinder case 87 is connected to the support member 40 so as to be rotatable around the rotation center shaft 150 .
  • the rotation center shaft 150 extends in a direction (X-axis direction) parallel to the first shaft 140 .
  • a distal end portion of the piston rod 88 is connected to the tool storage section 50 so as to be rotatable about the rotation center shaft 155 .
  • a distal end portion of the piston rod 88 is connected to the first operating body 61 at a position spaced radially outward of the first shaft 140 from the connecting portion 65 .
  • the rotation center shaft 150 extends in a direction (X-axis direction) parallel to each axis of the first shaft 140 and the rotation center shaft 150 .
  • the tool storage section 50 pivots from the first state 50A toward the second state 50B.
  • the tool storage section 50 pivots from the second state 50B toward the first state 50A.
  • the actuator that operates the tool storage section 50 between the first state 50A and the second state 50B is not particularly limited, and may be, for example, a motor that outputs rotational motion to the connection section 65.
  • the tool central axis of the tool T held by the first tool holding section 53 210 extends in the horizontal direction (Z-axis direction).
  • a tool center axis 210 of the tool T held by the first tool holding portion 53 is parallel to the tool center axis 210 of the tool T held by the tool spindle 16 .
  • the second axis 160 extends in the horizontal direction (Z-axis direction).
  • the axial direction of the tool T held by the first tool holding section 53 is the vertical direction (Y-axis direction). is. That is, the axial direction of the tool T held by the first tool holding portion 53 forms an angle of 90° with respect to the horizontal direction.
  • the angle formed by the axial direction of the tool T held by the first tool holding portion 53 with respect to the horizontal direction is preferably 45° or more, and preferably 70° or more. is more preferred.
  • the first tool holding portion 53 is arranged below the connecting portion 65 (first shaft 140).
  • the second tool holding portion 56 is arranged above the connecting portion 65 (first shaft 140).
  • the first tool holding portion 53 and the second tool holding portion 56 face the opening formed by the opened opening 24 (front opening 24S).
  • the first tool holding portion 53 and the second tool holding portion 56 face the opening formed by the open front opening 24S in the X-axis direction.
  • the distance between the first tool holding portion 53 and the first shaft 140 in the Y-axis direction may be greater than or equal to the distance between the first shaft 140 and the second tool holding portion 56 in the Y-axis direction.
  • the distance between the shank portion Sh and the first shaft 140 in the Y-axis direction is the distance between the first shaft 140 and the tool T in the Y-axis direction. It may be greater than or equal to the distance between the tips.
  • the tool storage section 50 further has an automatic tool changer 60 .
  • the automatic tool changing mechanism 60 is configured to automatically change tools between the tool magazine 10 (first tool holder 53 ) and the tool spindle 16 .
  • the automatic tool changer 60 has a turning mechanism 80. As shown in FIG.
  • the turning mechanism part 80 turns the first tool holding part 53 around the second shaft 160 .
  • the turning mechanism section 80 turns the second operating body 63 together with the third operating body 51 around the second axis 160 .
  • the turning mechanism section 80 has a motor 81 , a speed reducer 83 and a bearing 85 .
  • the bearing 85 is interposed between the first operating body 61 and the second operating body 63 .
  • the bearing 85 supports the second operating body 63 so as to be rotatable around the second shaft 160 .
  • a motor 81 and a speed reducer 83 are attached to the first operating body 61 .
  • the motor 81 and the speed reducer 83 are arranged side by side on the second shaft 160 .
  • Motor 81 outputs rotational motion about second axis 160 .
  • An output shaft of the motor 81 is connected to a reduction gear 83 .
  • the speed reducer 83 reduces the speed of the rotational motion from the motor 81 and outputs it to the second operating body 63 .
  • the turning mechanism section 80 moves the first tool holding section 53 among the first turning position 53E, the second turning position 53C and the third turning position 53D.
  • the first pivot position 53E, the second pivot position 53C and the third pivot position 53D are phase positions about the second axis 160.
  • the second turning position 53C is the turning position of the first tool holding part 53 during workpiece machining, and corresponds to the basic posture of the first tool holding part 53.
  • the first turning position 53E is the turning position of the first tool holding part 53 during automatic tool change between the tool magazine 10 and the tool spindle 16 .
  • the first turning position 53E changes according to the position of the replacement tool Ta, which is the target of automatic tool replacement, among the plurality of tools T held by the first tool holding portion 53.
  • the third turning position 53D is the turning position of the first tool holding portion 53 during manual tool exchange by the operator for exchanging the tools stored in the tool magazine 10 .
  • the automatic tool changing mechanism 60 further has a slide mechanism section 70 .
  • the slide mechanism section 70 slides the first tool holding section 53 in the axial direction of the second shaft 160 .
  • the slide mechanism section 70 slides the third operating body 51 in the axial direction of the second shaft 160 .
  • the slide mechanism portion 70 moves the first tool holding portion 53 to a position where the tool T (shank portion Sh) held by the first tool holding portion 53 is removed from the tool spindle 16 and a position where the tool T (shank portion Sh) is held by the first tool holding portion 53 .
  • the tool T (shank portion Sh) is slid between positions where it is inserted into the tool spindle 16 .
  • the slide mechanism section 70 has a hydraulic piston 76 and a linear guide 71.
  • the linear guide 71 is interposed between the second operating body 63 and the third operating body 51 .
  • the linear guide 71 supports the third operating body 51 so as to be slidable in the axial direction of the second shaft 160 .
  • a cylinder case of the hydraulic piston 76 is attached to the second operating body 63 .
  • a tip of the piston rod of the hydraulic piston 76 is connected to the third operating body 51 .
  • the state of the tool magazine 10 during workpiece machining will be described. 1 to 7, 13 and 14, during work machining, the tool storage portion 50 is in the first state 50A, and the first tool holding portion 53 is arranged at the second turning position 53C. there is
  • the third operating body 51 (first tool holding portion 53) is arranged above the first shaft 140.
  • the third operating body 51 (first tool holding portion 53 ) is arranged above the second shaft 160 .
  • the third operating body 51 (first tool holding portion 53 ) is arranged above the second operating body 63 .
  • the tool storage section 50 is provided so as not to overlap the movement range of the tool spindle 16 within the X-Y axis plane when viewed in the Z-axis direction.
  • the third operating body 51 (first tool holding portion 53) is arranged above the tool spindle 16 positioned at a tool changing position 16F, which will be described later.
  • the second shaft 160 is provided at a position shifted in the +X-axis direction and the +Y-axis direction (upward) from the rotation center axis 110 of the tool spindle 16. ing.
  • the tool T held by the first tool holding portion 53 is placed in the ceiling opening 24T.
  • the movable cover 28 closes the ceiling opening 24T together with the third operating body 51 (the base portion 52 and the eaves portion 58) when the door portion 26 is closed.
  • a tool T held by the first tool holding portion 53 is arranged in a space outside the machining area 200 .
  • the first operating body 61 and the second operating body 63 are arranged in the processing area 200 .
  • the tool storage section 50 is in the first state 50A, and the first tool holding section 53 is arranged at the second turning position 53C.
  • the second turning position 53C is located closer to the opening 24 (the front opening 24S) than the first turning position 53E during ATC.
  • the holding portion 53 and the plurality of tools T held by the first tool holding portion 53 can be kept away from the tool spindle 16 .
  • the first tool holding portion 53 is arranged above the second shaft 160, the first tool holding portion 53 and the plurality of tools T held by the first tool holding portion 53 can be moved during machining of the workpiece. It can be further removed from the tool spindle 16 .
  • the tool magazine 10 is placed in the first state 50A, and the tool storage section 50 is placed in the first state 50A during work machining.
  • the configuration in which the portion 53 is arranged at the second turning position 53C is changed to the configuration in which the tool storage portion 50 is brought to the first state 50A and the first tool holding portion 53 is arranged at the first turning position 53E.
  • the tool spindle 16 is moved to the tool change position 16F.
  • the rotation center axis 110 of the tool spindle 16 is arranged on the circumference of an arc 220 centered on the second axis 160 when viewed in the Z-axis direction. .
  • the second operating body 63 and the third operating body 51 are turned around the second axis 160 by the turning mechanism part 80 while the tool storage part 50 is kept in the first state 50A.
  • the first tool holding part 53 is moved from the second turning position 53C to the first turning position 53E.
  • a plurality of tools T held by the first tool holding portion 53 enter the machining area 200 from a space outside the machining area 200 .
  • the shank portions Sh of the plurality of tools T held by the first tool holding portion 53 and the second tool holding portion 56 pass over the spindle end surface of the tool spindle 16 and move in the circumferential direction about the second axis 160. do.
  • the replacement tool Ta faces the tool spindle 16 in its axial direction.
  • the tool center axis 210 of the replacement tool Ta and the rotation center axis 110 of the tool spindle 16 extend straight in the Z-axis direction.
  • the replacement tool Ta is inserted into the tool spindle 16 by sliding the third operating body 51 in the -Z-axis direction using the slide mechanism portion 70 .
  • a shank portion Sh of the exchange tool Ta is clamped by a clamping mechanism built in the tool spindle 16 .
  • the slide mechanism section 70 slides the third operating body 51 in the +Z-axis direction.
  • the first tool holding portion 53 is released from the exchange tool Ta while releasing the holding of the exchange tool Ta by the first tool holding portion 53 .
  • the first tool holding section 53 is returned to the second rotating position 53C.
  • the second turning position 53C is arranged closer to the opening 24 (front opening 24S) than the first turning position 53E.
  • first tool holding portion 53 and the opening 24 (front opening 24S) when the tool storage portion 50 is in the first state 50A and the first tool holding portion 53 is arranged at the second turning position 53C in the X-axis direction is the first tool holding portion 53 and the opening 24 when the tool storage portion 50 is in the first state 50A and the first tool holding portion 53 is arranged at the first turning position 53E. (front opening 24S) in the X-axis direction.
  • the axial direction of the tool T held by the first tool holding portion 53 when the tool storage portion 50 is in the first state 50A and the axial direction of the tool T mounted on the tool spindle 16 are parallel to each other, automatic tool exchange between the tool magazine 10 and the tool spindle 16 can be realized by the simple automatic tool exchange mechanism 60 consisting of the turning mechanism section 80 and the slide mechanism section 70 .
  • tool storage portion 50 is operable between first state 50A and second state 50B when first tool holding portion 53 is positioned at second pivot position 53C. be.
  • first state 50A When an operator replaces a tool T stored in the tool magazine 10 manually, the tool magazine 10 is set to the first state 50A, and the first tool holding portion 53 is set to the second state 50A.
  • the configuration in which the tool storage portion 50 is placed in the second state 50B is changed from the configuration in which the tool storage portion 50 is arranged in the turning position 53C, and the configuration in which the first tool holding portion 53 is arranged in the third turning position 53D.
  • the first operating body 61 is moved along with the second operating body 63 and the third operating body 51, and the first shaft 140 is moved. Swirl to center. As a result, the tool storage section 50 is changed from the first state 50A to the second state 50B.
  • the door portion 26 is slid in the +Z-axis direction to open the opening portion 24 to an open state.
  • the first tool holding section 53 is moved to the second state 50B. It is moved from the second turning position 53C to the third turning position 53D.
  • the operator attaches and detaches the tool to/from the first tool holding portion 53 through the opening formed by the opening portion 24 .
  • the third turning position 53D is located closer to the opening 24 (front opening 24S) than the second turning position 53C. Between the first tool holding portion 53 and the opening 24 (front opening 24S) when the tool storage portion 50 is in the second state 50B and the first tool holding portion 53 is arranged at the third turning position 53D in the X-axis direction is the first tool holding portion 53 and the opening 24 when the tool storage portion 50 is in the second state 50B and the first tool holding portion 53 is arranged at the second turning position 53C. (front opening 24S) in the X-axis direction.
  • the turning angle of the first tool holding part 53 between the second turning position 53C and the third turning position 53D is 90° or less.
  • the turning angle of the first tool holding part 53 between the second turning position 53C and the third turning position 53D may be 45° or more, or may be 60° or more.
  • the tool storage section 50 is in the second state 50B, and the first tool holding section 53 is arranged at the third turning position 53D.
  • the operator can move the tool T up and down.
  • the tool T can be attached to and detached from the first tool holding portion 53 arranged at a lower position while holding the tool T in a standing posture.
  • the operator can attach and detach the tool T through the opening portion 24 from the outside of the processing area 200. work can be done.
  • the second turning position 53C is located closer to the opening 24 (front opening 24S) than the first turning position 53E, and the third turning position 53D is closer to the opening than the second turning position 53C. Since it is arranged close to the portion 24 (front opening portion 24S), it is possible to improve the accessibility of the operator to the first tool holding portion 53 .
  • the tool magazine 10 includes a tool storage section 50 for storing a plurality of tools T, and a support member 40 that supports the tool storage section 50 .
  • the tool storage portion 50 includes a first tool holding portion 53 as a tool holding portion that detachably holds a plurality of tools T, and a first tool holding portion 53 in the axial direction of the tools T held by the first tool holding portion 53 . and a connecting portion 65 provided at a position away from the portion 53 .
  • connection portion 65 is configured such that the tool storage portion 50 is in the first state 50A in which the axial direction of the tool T held by the first tool holding portion 53 is horizontal, and the tool T held by the first tool holding portion 53 is in the first state 50A.
  • the support member 40 is operable between the second state 50B in which the axial direction forms an angle with the horizontal direction and the first tool holding portion 53 is arranged below the connecting portion 65. connected to
  • a machine tool 100 includes a tool magazine 10 and a tool spindle 16 for rotating tools T.
  • the axial direction of the tool T held by the first tool holding portion 53 when the tool storage portion 50 is in the first state 50A and the axial direction of the tool T mounted on the tool spindle 16 are parallel.
  • the tool storage section 50 further includes an automatic tool changer 60 for exchanging tools T between the tool spindle 16 and the first tool holding section 53 when the tool storage section 50 is in the first state 50A. .
  • the tool magazine 10 and the machine tool 100 according to the embodiment of the present invention which are configured in this way, it is possible to improve workability during manual tool changing, in which the operator attaches and detaches tools.
  • the machine tool in the present invention is not limited to a machining center, and may be, for example, a multitasking machine having a turning function and a milling function. It may be an AM/SM hybrid machine capable of removal machining (SM (subtractive manufacturing) machining).
  • SM removal machining
  • This invention is applied to machine tools such as machining centers or multitasking machines.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Abstract

This tool magazine (10) comprises a tool storage portion (50) for storing a plurality of tools (T) and a support member (40) that supports the tool storage portion (50). The tool storage portion (50) includes a tool holding portion (53) that attachably and detachably holds the plurality of tools (T) and a connecting portion (65) provided at a position spaced apart from the tool holding portion (53) in the axial direction of the tools (T) held by the tool holding portion (53). The connecting portion (65) is connected to the support member (40) such that the tool storage portion (50) can move between a first state (50A) in which the axial direction of the tools (T) held by the tool holding portion (53) is a horizontal direction and a second state (50B) in which the axial direction of the tools (T) held by the tool holding portion (53) is a direction at an angle to the horizontal direction and the tool holding portion (53) is located below the connecting portion (65).

Description

工具マガジンおよび工作機械Tool magazines and machine tools
　この発明は、工具マガジンおよび工作機械に関する。 This invention relates to tool magazines and machine tools.
　たとえば、特開２００９－５６５４６号公報（特許文献１）には、横型主軸と、横型主軸上の空間の天井部に配置され、多数本のラインボーリングバーをストックするマガジンストッカー手段と、マガジンストッカー手段にストックされたラインボーリングバーを、横型主軸の軸線に一致させた交換位置、または、機械本体の片側の低部に設けられたメンテナンス位置に搬送するボーリングバー搬送手段とを備える工作機械が開示されている。 For example, Japanese Patent Application Laid-Open No. 2009-56546 (Patent Document 1) discloses a horizontal spindle, a magazine stocker means arranged on the ceiling of a space above the horizontal spindle, and stocking a large number of line boring bars, and a magazine stocker means. Disclosed is a machine tool equipped with a boring bar conveying means for conveying a line boring bar stocked in the machine to a replacement position aligned with the axis of a horizontal spindle, or to a maintenance position provided at the lower part of one side of the machine body. ing.
特開２００９－５６５４６号公報JP 2009-56546 A
　上述の特許文献１に開示されるように、ワーク加工に用いられる工具を収容するための工具マガジンが知られている。 As disclosed in the above-mentioned Patent Document 1, a tool magazine for storing tools used for machining workpieces is known.
　このような工具マガジンでは、ワーク加工に用いられる工具の種類が変更になったり、工具が寿命に至ったりしたときに、作業者が工具マガジンに収容される工具の着脱作業を行なう場合がある。しかしながら、工具の形状または重量は様々であり、工具によってはその取り扱いが困難となるため、作業者が工具の着脱を行なう際の作業性が損なわれる可能性がある。 In such a tool magazine, when the type of tool used for machining a workpiece changes or when the tool reaches the end of its life, the operator may need to attach or detach the tool stored in the tool magazine. However, tools have various shapes and weights, and some tools are difficult to handle, which may impair workability when an operator attaches and detaches the tool.
　そこでこの発明の目的は、上記の課題を解決することであり、作業者が工具の着脱を行なう際に良好な作業性が得られる工具マガジン、および、そのような工具マガジンを備える工作機械を提供することである。 SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-described problems, and to provide a tool magazine that allows an operator to attach and detach tools with good workability, and a machine tool equipped with such a tool magazine. It is to be.
　この発明に従った工具マガジンは、複数の工具を格納するための工具格納部と、工具格納部を支持する支持部材とを備える。工具格納部は、複数の工具を着脱可能に保持する工具保持部と、工具保持部に保持される工具の軸線方向において、工具保持部から離れた位置に設けられる接続部とを含む。接続部は、工具格納部が、工具保持部に保持される工具の軸線方向が水平方向となる第１状態と、工具保持部に保持される工具の軸線方向が水平方向に対して角度をなす方向となり、かつ、工具保持部が接続部よりも下方に配置される第２状態との間で動作可能なように、支持部材に接続される。 A tool magazine according to the present invention comprises a tool storage section for storing a plurality of tools, and a support member for supporting the tool storage section. The tool storage section includes a tool holding section that detachably holds a plurality of tools, and a connection section that is provided at a position away from the tool holding section in the axial direction of the tools held by the tool holding section. In the connecting portion, the tool storage portion is in a first state in which the axial direction of the tool held by the tool holding portion is horizontal, and the axial direction of the tool held by the tool holding portion forms an angle with the horizontal direction. and is connected to the support member operably between a second state in which the tool holding portion is positioned below the connecting portion.
　このように構成された工具マガジンによれば、工具格納部が第２状態とされた場合に、工具保持部に保持される工具の軸線方向が水平方向に対して角度をなす方向となるため、工具の軸線方向が水平方向である場合と比較して、工具保持部に保持される工具が立つ姿勢とされる。また、工具格納部が第２状態とされた場合に、工具保持部が接続部よりも下方に配置されるため、複数の工具を着脱可能に保持する工具保持部がより低い位置に配置される。これにより、工具格納部が第２状態とされた場合に、作業者が工具保持部に対して工具を着脱する際の作業性を良好にできる。 According to the tool magazine configured in this manner, when the tool storage section is in the second state, the axial direction of the tool held by the tool holding section forms an angle with the horizontal direction. Compared to the case where the axial direction of the tool is horizontal, the tool held by the tool holding portion is in a standing posture. Further, when the tool storage section is in the second state, the tool holding section is arranged below the connection section, so that the tool holding section that detachably holds a plurality of tools is arranged at a lower position. . Thus, when the tool storage section is in the second state, it is possible to improve workability when the operator attaches and detaches the tool to and from the tool holding section.
　また好ましくは、工具格納部が第２状態とされた場合に、工具保持部に保持される工具の軸線方向が上下方向となる。 Further, preferably, when the tool storage section is in the second state, the axial direction of the tool held by the tool holding section is the vertical direction.
　このように構成された工具マガジンによれば、工具格納部が第２状態とされた場合に、作業者が工具保持部に対して工具を着脱する際の作業性をさらに良好にできる。 According to the tool magazine configured in this way, when the tool storage section is in the second state, it is possible to further improve workability when the operator attaches and detaches the tool to and from the tool holding section.
　また好ましくは、接続部は、工具格納部が、工具保持部に保持される工具の軸線方向に直交し、かつ、水平方向に平行な第１軸を中心に回動可能なように、支持部材に接続される。 Further, preferably, the connecting portion is configured such that the tool storage portion is rotatable about a first axis perpendicular to the axial direction of the tool held by the tool holding portion and parallel to the horizontal direction. connected to
　このように構成された工具マガジンによれば、工具格納部を第１状態および第２状態の間で動作させる機構を、簡易な構成にすることができる。 According to the tool magazine configured in this manner, the mechanism for operating the tool storage section between the first state and the second state can be configured simply.
　また好ましくは、工具は、ロングボーリングバーである。
　このように構成された工具マガジンによれば、工具が、軸長が大きく、大重量であるロングボーリングバーである場合であっても、作業者が工具保持部に対して工具を着脱する際の作業性を良好にできる。 Also preferably, the tool is a long boring bar.
According to the tool magazine configured in this way, even when the tool is a long boring bar with a long shaft length and a large weight, the operator can easily attach and detach the tool from the tool holder. Workability can be improved.
　この発明に従った工作機械は、上述のいずれかに記載の工具マガジンと、工具を回転させるための工具主軸とを備える。工具格納部が第１状態とされた場合の工具保持部に保持される工具の軸線方向と、工具主軸に装着された工具の軸線方向とが平行である。工具格納部は、工具格納部が第１状態とされた場合の工具保持部と、工具主軸との間で工具を交換するための自動工具交換機構をさらに含む。 A machine tool according to the present invention includes any one of the tool magazines described above and a tool spindle for rotating the tools. The axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state is parallel to the axial direction of the tool mounted on the tool spindle. The tool storage further includes an automatic tool changing mechanism for exchanging tools between the tool holder and the tool spindle when the tool storage is in the first state.
　このように構成された工作機械によれば、工具格納部が第１状態とされた場合の工具保持部に保持される工具の軸線方向と、工具主軸に装着された工具の軸線方向とが平行であるため、自動工具交換機構を簡易な構成とすることができる。 According to the machine tool configured as described above, the axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state is parallel to the axial direction of the tool mounted on the tool spindle. Therefore, the automatic tool changer can have a simple configuration.
　また好ましくは、工具保持部は、複数の工具を第２軸を中心に円弧状に並ぶように保持する。第２軸は、工具格納部が第１状態とされた場合の工具保持部に保持される工具の軸線方向と平行である。自動工具交換機構は、工具格納部が第１状態とされた場合に、工具保持部に保持される複数の工具から選択されるいずれか１つの交換工具が、その軸線方向において工具主軸と対向するように、工具保持部を第２軸を中心に旋回させる旋回機構部と、工具保持部を第２軸の軸方向にスライドさせるスライド機構部とを含む。 Also preferably, the tool holding portion holds a plurality of tools so as to be arranged in an arc around the second axis. The second axis is parallel to the axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state. In the automatic tool changing mechanism, when the tool storage section is placed in the first state, any one exchange tool selected from a plurality of tools held in the tool holding section faces the tool spindle in its axial direction. , a turning mechanism for turning the tool holding portion around the second axis, and a slide mechanism for sliding the tool holding portion in the axial direction of the second axis.
　このように構成された工作機械によれば、旋回機構部およびスライド機構部を含む自動工具交換機構によって、工具保持部および工具主軸の間における工具交換を実現することができる。 According to the machine tool configured in this way, it is possible to realize tool exchange between the tool holding section and the tool spindle by means of the automatic tool exchange mechanism including the turning mechanism section and the slide mechanism section.
　また好ましくは、工作機械は、開口部が設けられ、ワークの加工エリアを区画形成するカバー体と、開口部に設けられ、開口部を開放する開状態と、開口部を閉塞する閉状態との間で動作が可能な扉部とをさらに備える。工具格納部が第２状態とされた場合に、工具保持部は、開状態とされた開口部がなす開口と対向する。 Further preferably, the machine tool includes a cover body provided with an opening for partitioning and forming a processing area for the workpiece, and a cover provided at the opening and having an open state in which the opening is opened and a closed state in which the opening is closed. and a door portion operable therebetween. When the tool storage section is in the second state, the tool holding section faces the opening formed by the opening section in the open state.
　このように構成された工作機械によれば、第２状態とされた工具格納部が、カバー体の開口部がなす開口と対向するため、作業者が加工エリアの外側から開口部を通じて工具保持部に対して工具を着脱する際の作業性を良好にできる。 According to the machine tool configured as described above, since the tool storage section in the second state faces the opening formed by the opening of the cover body, the operator can move the tool holding section through the opening from the outside of the machining area. Workability can be improved when attaching and detaching the tool to and from.
　また好ましくは、旋回機構部は、工具格納部が第１状態とされた場合に、工具保持部を、交換工具がその軸線方向において工具主軸と対向する第１旋回位置と、第１旋回位置よりも開口部に近接して配置される第２旋回位置との間で旋回させる。工具格納部は、工具保持部が第２旋回位置に配置された場合に、第１状態および第２状態の間で動作可能とされる。 Further, preferably, when the tool storage section is in the first state, the turning mechanism section moves the tool holding section to a first turning position where the replacement tool faces the tool spindle in its axial direction, and from the first turning position. is also pivoted to and from a second pivoted position located proximate to the opening. The tool storage is operable between a first state and a second state when the tool holder is positioned in the second pivoted position.
　このように構成された工作機械によれば、工具格納部が第１状態とされた場合に、工具保持部を第１旋回位置から第２旋回位置まで旋回させることによって、ワーク加工時に、工具保持部、および、工具保持部に保持される複数の工具を工具主軸から遠ざけることができる。これにより、工具マガジンの設置に起因する加工エリアの縮小を抑制することができる。また、工具保持部が第２旋回位置に配置された場合に、工具格納部を第１状態から第２状態に動作させることによって、工具保持部、および、工具保持部に保持される複数の工具を、カバー体の開口部がなす開口により近づけることができる。これにより、作業者が加工エリアの外側から開口部を通じて工具保持部に対して工具を着脱する際の作業性をさらに良好にできる。 According to the machine tool configured as described above, when the tool storage section is in the first state, the tool holding section is turned from the first turning position to the second turning position, whereby the tool is held during machining of the workpiece. and the plurality of tools held by the tool holder can be moved away from the tool spindle. As a result, it is possible to suppress the reduction of the machining area due to the installation of the tool magazine. Further, when the tool holding portion is arranged at the second turning position, the tool holding portion and the plurality of tools held by the tool holding portion are moved from the first state to the second state. can be brought closer to the opening formed by the opening of the cover body. As a result, workability can be further improved when the operator attaches and detaches the tool from the outside of the machining area to and from the tool holder through the opening.
　また好ましくは、工具格納部が第１状態とされ、かつ、工具保持部が第２旋回位置に配置された場合に、工具保持部は、第２軸よりも上方に位置決めされる。 Further preferably, when the tool storage section is in the first state and the tool holding section is arranged at the second turning position, the tool holding section is positioned above the second axis.
　このように構成された工作機械によれば、ワーク加工時に、工具保持部、および、工具保持部に保持される複数の工具を工具主軸からさらに遠ざけることができる。 According to the machine tool configured in this manner, the tool holding portion and the plurality of tools held by the tool holding portion can be further moved away from the tool spindle during work machining.
　また好ましくは、旋回機構部は、工具格納部が第２状態とされた場合に、工具保持部を、第２旋回位置と、第２旋回位置よりも開口部に近接して配置される第３旋回位置との間で旋回させる。 Further preferably, when the tool storage section is in the second state, the turning mechanism section moves the tool holding section to a second turning position and a third turning position which is closer to the opening than the second turning position. Rotate to and from the swivel position.
　このように構成された工作機械によれば、工具保持部、および、工具保持部に保持される複数の工具を、カバー体の開口部がなす開口により近づけることができる。これにより、作業者が加工エリアの外側から開口部を通じて工具保持部に対して工具を着脱する際の作業性をさらに良好にできる。 According to the machine tool configured in this way, the tool holding portion and the plurality of tools held by the tool holding portion can be brought closer to the opening formed by the opening of the cover body. As a result, workability can be further improved when the operator attaches and detaches the tool from the outside of the machining area to and from the tool holder through the opening.
　また好ましくは、工作機械は、工具マガジンおよび工具主軸を支持するためのベッドをさらに備える。支持部材は、ベッドが設置される床面から分離して設けられ、ベッドに接続される。 Also preferably, the machine tool further comprises a bed for supporting the tool magazine and the tool spindle. The support member is provided separately from the floor on which the bed is installed and is connected to the bed.
　このように構成された工作機械によれば、支持部材が床面から分離して設けられるため、支持部材が床面に対するベッドの据え付け状態に影響を及ぼすことを防止できる。 According to the machine tool configured in this way, since the support member is provided separately from the floor surface, it is possible to prevent the support member from affecting the installation state of the bed with respect to the floor surface.
　以上に説明したように、この発明に従えば、作業者が工具の着脱を行なう際に良好な作業性が得られる工具マガジン、および、そのような工具マガジンを備える工作機械を提供することができる。 As described above, according to the present invention, it is possible to provide a tool magazine in which good workability can be obtained when an operator attaches and detaches tools, and a machine tool equipped with such a tool magazine. .
この発明の実施の形態における工具マガジンを備える工作機械を示す斜視図である。1 is a perspective view showing a machine tool having a tool magazine according to an embodiment of the invention; FIG. 図１中の工作機械の内部構造を示す斜視図である。FIG. 2 is a perspective view showing the internal structure of the machine tool in FIG. 1; 工具マガジンを示す斜視図である。It is a perspective view showing a tool magazine. 図３中の工具マガジンを示す断面図である。FIG. 4 is a sectional view showing the tool magazine in FIG. 3; 図３中の工具マガジンを示す別の断面図である。FIG. 4 is another sectional view showing the tool magazine in FIG. 3; 工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合（扉部が開状態）の工作機械の外観を示す斜視図である。FIG. 10 is a perspective view showing the appearance of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position (the door section is open); 工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す側面図である。FIG. 4 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position; 工具格納部が第２状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す側面図である。FIG. 5 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position; 工具格納部が第２状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す上面図である。FIG. 10 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position; 工具格納部が第２状態とされ、第１工具保持部が第３旋回位置に配置された場合（扉部が開状態）の工作機械の外観を示す斜視図である。FIG. 11 is a perspective view showing the appearance of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position (the door section is open); 工具格納部が第２状態とされ、第１工具保持部が第３旋回位置に配置された場合の工作機械の内部を示す側面図である。FIG. 11 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position; 工具格納部が第２状態とされ、第１工具保持部が第３旋回位置に配置された場合の工作機械の内部を示す上面図である。FIG. 10 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position; 工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す斜視図である。FIG. 4 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position; 工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す側面図である。FIG. 4 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position; 工具格納部が第１状態とされ、第１工具保持部が第１旋回位置に配置された場合の工作機械の内部を示す斜視図である。FIG. 4 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position; 工具格納部が第１状態とされ、第１工具保持部が第１旋回位置に配置された場合（ＡＴＣ前段）の工作機械の内部を示す側面図である。FIG. 10 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (before ATC); 工具格納部が第１状態とされ、第１工具保持部が第１旋回位置に配置された場合（ＡＴＣ後段）の工作機械の内部を示す斜視図である。FIG. 10 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (after ATC);
　この発明の実施の形態について、図面を参照して説明する。なお、以下で参照する図面では、同一またはそれに相当する部材には、同じ番号が付されている。 An embodiment of the present invention will be described with reference to the drawings. In the drawings referred to below, the same or corresponding members are given the same numbers.
　図１は、この発明の実施の形態における工具マガジンを備える工作機械を示す斜視図である。図２は、図１中の工作機械の内部構造を示す斜視図である。 FIG. 1 is a perspective view showing a machine tool equipped with a tool magazine according to an embodiment of the invention. 2 is a perspective view showing the internal structure of the machine tool in FIG. 1. FIG.
　図１および図２を参照して、工作機械１００は、ワークに回転する工具を接触させることによって、ワーク加工を行なうマシニングセンタであり、より特定的には、工具の回転中心軸が水平方向に延びる横形マシニングセンタである。工作機械１００は、コンピュータによる数値制御によって、ワーク加工のための各種動作が自動化されたＮＣ（Numerical　Control）工作機械である。 Referring to FIGS. 1 and 2, machine tool 100 is a machining center that processes a workpiece by bringing a rotating tool into contact with the workpiece. More specifically, the central axis of rotation of the tool extends horizontally. It is a horizontal machining center. The machine tool 100 is an NC (Numerical Control) machine tool in which various operations for machining a workpiece are automated by numerical control by a computer.
　本明細書においては、水平方向に平行で、かつ、工具の回転中心軸に平行な軸を「Ｚ軸」といい、水平方向に平行で、かつ、工具の回転中心軸に直交する軸を「Ｘ軸」といい、上下方向（鉛直方向）に平行な軸を「Ｙ軸」という。図１および図２の紙面における斜め左下の手前方向が「＋Ｚ軸方向」であり、斜め右上の奥方向が「－Ｚ軸方向」である。図１および図２の紙面における斜め右下の手前方向が「＋Ｘ軸方向」であり、斜め左上の奥方向が「－Ｘ軸方向」である。上方向が「＋Ｙ軸方向」であり、下方向が「－Ｙ軸方向」である。 In this specification, an axis parallel to the horizontal direction and parallel to the central axis of rotation of the tool is referred to as "Z-axis", and an axis parallel to the horizontal direction and perpendicular to the central axis of rotation of the tool is referred to as " The axis parallel to the up-down direction (vertical direction) is called the "Y-axis". 1 and 2, the diagonally lower left front direction is the "+Z axis direction", and the diagonally upper right back direction is the "-Z axis direction". 1 and 2, the diagonally lower right front direction is the "+X axis direction", and the diagonal upper left back direction is the "-X axis direction". The upward direction is the “+Y axis direction” and the downward direction is the “−Y axis direction”.
　まず、工作機械１００の全体構造について説明する。工作機械１００は、ベッド１１と、コラム１２と、工具主軸１６と、テーブル３１とを有する。 First, the overall structure of the machine tool 100 will be described. The machine tool 100 has a bed 11 , a column 12 , a tool spindle 16 and a table 31 .
　ベッド１１は、コラム１２、工具主軸１６、テーブル３１および後出の工具マガジン１０等を支持するためのベース部材であり、工場などの床面に設置されている。ベッド１１は、アンカーボルト等を用いて、複数箇所（たとえば、３箇所）で床面に固定されている。コラム１２は、ベッド１１上に立設されている。コラム１２は、全体として、ベッド１１から上方に向けて立ち上がる門型形状を有する。コラム１２は、－Ｚ軸方向におけるベッド１１の端部に配置されている。 The bed 11 is a base member for supporting the column 12, the tool spindle 16, the table 31, the tool magazine 10 described later, and the like, and is installed on the floor of the factory or the like. The bed 11 is fixed to the floor at a plurality of locations (eg, three locations) using anchor bolts or the like. Column 12 is erected on bed 11 . The column 12 as a whole has a gate shape rising upward from the bed 11 . The column 12 is arranged at the end of the bed 11 in the -Z-axis direction.
　工具主軸１６は、工具を回転させるための装置である。工具主軸１６は、コラム１２に対してＸ軸方向に移動可能なサドル（不図示）と、サドルに対してＹ軸方向に移動可能なクロススライド（不図示）とを介して、コラム１２により支持されている。工具主軸１６は、サドルおよびクロススライドの動作により、Ｘ軸方向およびＹ軸方向に移動可能である。工具主軸１６は、コラム１２から＋Ｚ軸方向に突出している。工具主軸１６は、Ｚ軸に平行な回転中心軸１１０の軸上で延びる筒体からなる。 The tool spindle 16 is a device for rotating the tool. The tool spindle 16 is supported by the column 12 via a saddle (not shown) movable in the X-axis direction with respect to the column 12 and a cross slide (not shown) movable in the Y-axis direction with respect to the saddle. It is The tool spindle 16 can move in the X-axis direction and the Y-axis direction by saddle and cross slide operations. The tool spindle 16 protrudes from the column 12 in the +Z-axis direction. The tool spindle 16 consists of a cylindrical body extending on the rotation center axis 110 parallel to the Z-axis.
　工具主軸１６は、モータ駆動により、回転中心軸１１０を中心にして回転可能である。工具主軸１６には、工作機械１００におけるワーク加工のための工具が装着される。工具主軸１６には、工具を着脱可能に保持するためのクランプ機構部が内蔵されている。工具主軸１６の回転に伴って、工具主軸１６に装着された工具が回転中心軸１１０を中心に回転する。 The tool spindle 16 is rotatable around the rotation center axis 110 by motor drive. A tool for machining a workpiece in the machine tool 100 is attached to the tool spindle 16 . The tool spindle 16 incorporates a clamping mechanism for detachably holding the tool. As the tool spindle 16 rotates, the tool attached to the tool spindle 16 rotates about the rotation center axis 110 .
　テーブル３１は、ベッド１１上に設けられている。テーブル３１は、コラム１２から＋Ｚ軸方向に離れた位置に設けられている。テーブル３１は、ベッド１１に対してＺ軸方向に移動可能である。 The table 31 is provided on the bed 11. The table 31 is provided at a position separated from the column 12 in the +Z-axis direction. The table 31 is movable in the Z-axis direction with respect to the bed 11 .
　テーブル３１は、ワークを保持するための装置である。テーブル３１は、Ｚ軸方向において工具主軸１６と対向する位置にワークを保持する。テーブル３１には、パレットＰが着脱可能に装着されている。パレットＰ上には、たとえば、ワークが取り付けられるイケール等の治具が搭載される。 The table 31 is a device for holding a work. The table 31 holds the workpiece at a position facing the tool spindle 16 in the Z-axis direction. A pallet P is detachably attached to the table 31 . On the pallet P, for example, jigs such as tombstones to which works are attached are mounted.
　なお、図２中には、パレットＰをＸ軸に平行な旋回中心軸１２０を中心に旋回させることが可能なテーブル３１が示されているが、工作機械１００が備えるテーブルは、これに限られるものではない。 Although FIG. 2 shows a table 31 capable of turning the pallet P around a turning center axis 120 parallel to the X-axis, the table provided with the machine tool 100 is limited to this. not a thing
　工作機械１００は、カバー体２１をさらに有する。カバー体２１は、加工エリア２００を区画形成するとともに、工作機械１００の外観をなしている。加工エリア２００は、ワークの加工が行なわれる空間であり、ワーク加工に伴う切屑または切削油等の異物が加工エリア２００の外側に漏出しないように密閉されている。 The machine tool 100 further has a cover body 21. The cover body 21 defines the machining area 200 and forms the appearance of the machine tool 100 . The machining area 200 is a space in which the workpiece is machined, and is sealed so that foreign matter such as chips or cutting oil resulting from the machining of the workpiece does not leak out of the machining area 200 .
　カバー体２１は、前面カバー部２３と、天井カバー部２２とを有する。前面カバー部２３は、全体として、Ｙ軸－Ｚ軸平面に平行に配置される板材からなり、＋Ｘ軸方向における端部で加工エリア２００を区画形成している。天井カバー部２２は、全体として、Ｘ軸－Ｚ軸平面に平行に配置される板材からなり、＋Ｙ軸方向における端部で加工エリア２００（加工エリア２００の天井部）を区画形成している。＋Ｘ軸方向における天井カバー部２２の端部は、＋Ｙ軸方向における前面カバー部２３の端部（上端部）に接続されている。 The cover body 21 has a front cover portion 23 and a ceiling cover portion 22 . The front cover portion 23 as a whole is made of a plate material arranged parallel to the Y-axis-Z-axis plane, and defines a processing area 200 at the end portion in the +X-axis direction. The ceiling cover part 22 is made of a plate material arranged in parallel with the X-axis-Z-axis plane as a whole, and defines the processing area 200 (the ceiling part of the processing area 200) at the end in the +Y-axis direction. The end of the ceiling cover portion 22 in the +X-axis direction is connected to the end (upper end) of the front cover portion 23 in the +Y-axis direction.
　カバー体２１には、開口部２４が設けられている。開口部２４は、加工エリア２００をが外部空間に開放する開口をなしている。 An opening 24 is provided in the cover body 21 . The opening 24 forms an opening that opens the processing area 200 to the outside space.
　開口部２４は、前面開口部２４Ｓと、天井開口部２４Ｔとを有する。前面開口部２４Ｓは、前面カバー部２３に設けられている。前面開口部２４Ｓは、Ｘ軸方向において、工具主軸１６と対向する位置で開口している。天井開口部２４Ｔは、天井カバー部２２に設けられている。＋Ｘ軸方向における天井開口部２４Ｔの端部は、＋Ｙ軸方向における前面開口部２４Ｓの端部（上端部）に連なっている。 The opening 24 has a front opening 24S and a ceiling opening 24T. The front opening portion 24S is provided in the front cover portion 23 . The front opening 24S opens at a position facing the tool spindle 16 in the X-axis direction. The ceiling opening portion 24T is provided in the ceiling cover portion 22 . The end of the ceiling opening 24T in the +X-axis direction continues to the end (upper end) of the front opening 24S in the +Y-axis direction.
　工作機械１００は、扉部２６をさらに有する。扉部２６は、開口部２４に設けられている。扉部２６は、前面開口部２４Ｓに設けられている。扉部２６は、開口部２４（前面開口部２４Ｓ）を開放する開状態と、開口部２４（前面開口部２４Ｓ）を閉塞する閉状態との間で動作が可能である。扉部２６は、開状態および閉状態の間において、Ｚ軸方向にスライド可能である。 The machine tool 100 further has a door portion 26. The door portion 26 is provided in the opening portion 24 . The door portion 26 is provided in the front opening portion 24S. The door portion 26 can operate between an open state in which the opening portion 24 (front opening portion 24S) is opened and a closed state in which the opening portion 24 (front opening portion 24S) is closed. The door portion 26 is slidable in the Z-axis direction between the open state and the closed state.
　工作機械１００は、可動カバー２８をさらに有する。可動カバー２８は、天井開口部２４Ｔに設けられている。可動カバー２８は、天井開口部２４Ｔがなす開口の一部を閉塞するように設けられている。可動カバー２８は、扉部２６に接続されている。可動カバー２８は、開状態および閉状態の間における扉部２６の動作に伴って、扉部２６と一体となってＺ軸方向にスライドする（後出の図６を参照）。 The machine tool 100 further has a movable cover 28. The movable cover 28 is provided at the ceiling opening 24T. The movable cover 28 is provided so as to partially block the opening formed by the ceiling opening 24T. The movable cover 28 is connected to the door portion 26 . The movable cover 28 slides in the Z-axis direction integrally with the door portion 26 as the door portion 26 moves between the open state and the closed state (see FIG. 6 described later).
　作業者は、加工エリア２００にアクセスする場合に、扉部２６を開状態に動作させ、前面開口部２４Ｓがなす開口と対向する位置に立つ。Ｘ軸方向においてベッド１１と隣り合う位置には、作業者が前面開口部２４Ｓがなす開口と対向する位置に立つための踏み台１３が設けられている。 When accessing the processing area 200, the operator opens the door section 26 and stands at a position facing the opening formed by the front opening section 24S. At a position adjacent to the bed 11 in the X-axis direction, a step 13 is provided for the operator to stand at a position facing the opening formed by the front opening 24S.
　続いて、本実施の形態における工具マガジン１０の構造について説明する。図３は、工具マガジンを示す斜視図である。図４および図５は、図３中の工具マガジンを示す断面図である。なお、後述するが、図１から図５中には、工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第２旋回位置５３Ｃに配置された場合の工具マガジン１０が示されている。 Next, the structure of the tool magazine 10 in this embodiment will be explained. FIG. 3 is a perspective view showing a tool magazine; FIG. 4 and 5 are sectional views showing the tool magazine in FIG. 3. FIG. As will be described later, FIGS. 1 to 5 show the tool magazine 10 when the tool storage section 50 is in the first state 50A and the first tool holding section 53 is arranged at the second turning position 53C. It is
　図１から図５を参照して、工作機械１００は、工具マガジン１０をさらに有する。工具マガジン１０は、ワーク加工のための工具Ｔを収容するための装置である。 With reference to FIGS. 1 to 5, machine tool 100 further has tool magazine 10 . The tool magazine 10 is a device for storing tools T for machining workpieces.
　工具Ｔは、シャンク部Ｓｈを有する。シャンク部Ｓｈは、工具中心軸２１０を中心とする軸体からなる。シャンク部Ｓｈは、たとえば、ＢＴシャンクであってもよいし、ＨＳＫシャンクであってもよいし、ＣＡＰＴＯシャンクであってもよい。工具中心軸２１０の軸方向が、工具Ｔの軸線方向に対応している。 The tool T has a shank portion Sh. The shank portion Sh is composed of a shaft centered on the tool central axis 210 . The shank portion Sh may be, for example, a BT shank, an HSK shank, or a CAPTO shank. The axial direction of the tool central axis 210 corresponds to the axial direction of the tool T. As shown in FIG.
　工具主軸１６に内蔵されるクランプ機構部からシャンク部Ｓｈに対して回転中心軸１１０の軸方向の引っ張り力が作用されるとともに、シャンク部Ｓｈが工具主軸１６により面拘束されることによって、工具Ｔが工具主軸１６に保持される。工具Ｔが工具主軸１６に保持された状態において、工具中心軸２１０と、回転中心軸１１０とが、Ｚ軸方向において一直線に延びる。 A clamping mechanism incorporated in the tool spindle 16 exerts a tensile force in the axial direction of the rotation center shaft 110 on the shank Sh, and the shank Sh is surface-constrained by the tool spindle 16, thereby clamping the tool T. is held by the tool spindle 16 . In a state in which the tool T is held by the tool spindle 16, the tool center axis 210 and the rotation center axis 110 extend straight in the Z-axis direction.
　工具Ｔは、内径旋削用のロングボーリングバーである。ロングボーリングバーは、シャンク部Ｓｈから、工具中心軸２１０の軸方向にバー状に延び、その先端にスローアウェイチップが取り付けられる形態を有する。 The tool T is a long boring bar for internal turning. The long boring bar extends from the shank portion Sh in the axial direction of the tool center axis 210 in a bar shape, and has a form in which a throwaway tip is attached to the tip thereof.
　なお、工具マガジン１０に収容される工具は、ロングボーリングバーに限られず、たとえば、フライスカッター等の大径工具であってもよい。また、工作機械１００は、工具マガジン１０に加えて、ドリルまたはエンドミル等の通常の工具を収容するための工具マガジンを有してもよい。 The tools stored in the tool magazine 10 are not limited to long boring bars, and may be large-diameter tools such as milling cutters. In addition to the tool magazine 10, the machine tool 100 may also have a tool magazine for storing ordinary tools such as drills or end mills.
　工具マガジン１０は、工具格納部５０と、支持部材４０とを有する。工具格納部５０は、複数の工具Ｔを格納するように構成されている。支持部材４０は、工具格納部５０を支持している。 The tool magazine 10 has a tool storage section 50 and a support member 40. The tool storage section 50 is configured to store a plurality of tools T. As shown in FIG. The support member 40 supports the tool storage section 50 .
　支持部材４０は、Ｙ軸方向に延びる柱形状を有する。支持部材４０は、ベッド１１が設置される床面から分離して設けられている。支持部材４０は、ベッド１１に接続されている。支持部材４０は、床面から上方に離れた位置において、ボルト等を用いて＋Ｘ軸方向を向くベッド１１の側面に締結されている。 The support member 40 has a columnar shape extending in the Y-axis direction. The support member 40 is provided separately from the floor on which the bed 11 is installed. Support member 40 is connected to bed 11 . The support member 40 is fastened to the side surface of the bed 11 facing the +X-axis direction using bolts or the like at a position spaced upward from the floor surface.
　このような構成により、支持部材４０が床面から縁が切れた形態で設けられるため、支持部材４０が、アンカーボルト等を用いたベッド１１の据え付け状態に影響を及ぼすことを防止できる。 With this configuration, the support member 40 is provided with the edge cut off from the floor surface, so the support member 40 can be prevented from affecting the installation state of the bed 11 using anchor bolts or the like.
　図３から図５に示されるように、工具格納部５０は、第１動作体６１と、第２動作体６３と、第３動作体５１とを有する。 As shown in FIGS. 3 to 5, the tool storage section 50 has a first operating body 61, a second operating body 63, and a third operating body 51.
　第１動作体６１は、支持部材４０に対して、第１軸１４０を中心に回動可能なように接続されている。第２動作体６３は、第１動作体６１に対して、第２軸１６０を中心に回動可能なように接続されている。第３動作体５１は、第２動作体６３に対して、第２軸１６０の軸方向にスライド可能なように接続されている。 The first operating body 61 is connected to the support member 40 so as to be rotatable around the first shaft 140 . The second operating body 63 is connected to the first operating body 61 so as to be rotatable about the second shaft 160 . The third operating body 51 is connected to the second operating body 63 so as to be slidable in the axial direction of the second shaft 160 .
　第１動作体６１は、第２動作体６３および第３動作体５１と一体となって、第１軸１４０を中心に旋回する。第２動作体６３は、第３動作体５１と一体となって、第２軸１６０を中心に旋回する。第３動作体５１は、単体で、第２軸１６０の軸方向にスライドする。 The first operating body 61 rotates around the first axis 140 integrally with the second operating body 63 and the third operating body 51 . The second operating body 63 rotates around the second axis 160 integrally with the third operating body 51 . The third operating body 51 slides alone in the axial direction of the second shaft 160 .
　第３動作体５１は、基部５２と、第１工具保持部５３（本発明における「工具保持部」に対応）と、第２工具保持部５６と、庇部５８とを有する。 The third operating body 51 has a base portion 52 , a first tool holding portion 53 (corresponding to the “tool holding portion” in the present invention), a second tool holding portion 56 and a canopy portion 58 .
　基部５２は、第２軸１６０からその半径方向外側に離れた位置に設けられている。基部５２は、第２軸１６０の軸方向に延びる板材からなる。庇部５８は、第２軸１６０の周方向における基部５２の両端部から延出し、庇形状をなしている。 The base 52 is provided at a position spaced radially outward from the second shaft 160 . The base portion 52 is made of a plate material extending in the axial direction of the second shaft 160 . The eaves portion 58 extends from both ends of the base portion 52 in the circumferential direction of the second shaft 160 and has an eaves shape.
　第１工具保持部５３および第２工具保持部５６の各工具保持部は、基部５２から第２軸１６０の半径方向外側に延出し、第２軸１６０の軸方向が厚み方向となる板材からなる。第１工具保持部５３および第２工具保持部５６は、第２軸１６０の軸方向に互いに間隔を開けて設けられている。 Each tool holding portion of the first tool holding portion 53 and the second tool holding portion 56 extends radially outward of the second shaft 160 from the base portion 52, and is made of a plate material whose thickness direction is the axial direction of the second shaft 160. . The first tool holding portion 53 and the second tool holding portion 56 are spaced apart from each other in the axial direction of the second shaft 160 .
　第１工具保持部５３および第２工具保持部５６の各工具保持部は、複数の工具Ｔを着脱可能に保持する。図５に示されるように、第１工具保持部５３および第２工具保持部５６に保持される複数の工具Ｔは、第２軸１６０を中心とする円弧２２０の曲線上に並んでいる。第１工具保持部５３および第２工具保持部５６に保持される工具Ｔの工具中心軸２１０は、第２軸１６０の軸方向に延びている。第１工具保持部５３および第２工具保持部５６に保持される工具Ｔの工具中心軸２１０は、第２軸１６０の軸方向に見た場合に、円弧２２０と交わっている。 Each of the first tool holding part 53 and the second tool holding part 56 holds a plurality of tools T detachably. As shown in FIG. 5 , the plurality of tools T held by the first tool holding portion 53 and the second tool holding portion 56 are arranged on a curve of an arc 220 centered on the second axis 160 . A tool central axis 210 of the tool T held by the first tool holding portion 53 and the second tool holding portion 56 extends in the axial direction of the second shaft 160 . A tool center axis 210 of the tool T held by the first tool holding portion 53 and the second tool holding portion 56 intersects the arc 220 when viewed in the axial direction of the second shaft 160 .
　第１工具保持部５３には、複数の第１工具挿入部５４が設けられている。第１工具挿入部５４は、工具Ｔのシャンク部Ｓｈを受け入れ可能な切り欠き形状を有する。第１工具挿入部５４は、第２軸１６０の軸方向において第１工具保持部５３を貫通し、第２軸１６０の半径方向外側を向いて開放される切り欠き形状を有する。 A plurality of first tool insertion portions 54 are provided in the first tool holding portion 53 . The first tool insertion portion 54 has a notch shape capable of receiving the shank portion Sh of the tool T. As shown in FIG. The first tool insertion portion 54 has a notch shape that passes through the first tool holding portion 53 in the axial direction of the second shaft 160 and opens outward in the radial direction of the second shaft 160 .
　第２工具保持部５６には、複数の第２工具挿入部５７が設けられている。第２工具挿入部５７は、工具Ｔのバー部分を受け入れ可能な切り欠き形状を有する。第２工具挿入部５７は、第２軸１６０の軸方向において第２工具保持部５６を貫通し、第２軸１６０の半径方向外側を向いて開放される切り欠き形状を有する。複数の第２工具挿入部５７は、それぞれ、第２軸１６０の軸方向において複数の第１工具挿入部５４と並んで設けられている。 A plurality of second tool insertion portions 57 are provided in the second tool holding portion 56 . The second tool insertion portion 57 has a notch shape capable of receiving the bar portion of the tool T. As shown in FIG. The second tool insertion portion 57 has a notch shape that passes through the second tool holding portion 56 in the axial direction of the second shaft 160 and opens outward in the radial direction of the second shaft 160 . The plurality of second tool insertion portions 57 are arranged side by side with the plurality of first tool insertion portions 54 in the axial direction of the second shaft 160 .
　第１工具保持部５３は、工具中心軸２１０に直交する平面方向、および、工具中心軸２１０の軸方向において、工具Ｔを支持している。第２工具保持部５６は、工具中心軸２１０に直交する平面方向において、工具Ｔを支持している。なお、第１工具保持部５３のみで工具Ｔを保持可能である場合、第３動作体５１に第２工具保持部５６が設けられない構成であってもよい。 The first tool holding part 53 supports the tool T in a planar direction perpendicular to the tool center axis 210 and in the axial direction of the tool center axis 210 . The second tool holding portion 56 supports the tool T in a planar direction perpendicular to the tool central axis 210 . If the tool T can be held only by the first tool holding portion 53, the third operating body 51 may not be provided with the second tool holding portion 56. FIG.
　図６は、工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合（扉部が開状態）の工作機械の外観を示す斜視図である。図７は、工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す側面図である。図８は、工具格納部が第２状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す側面図である。図９は、工具格納部が第２状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す上面図である。 FIG. 6 is a perspective view showing the appearance of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position (the door section is open). FIG. 7 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position. FIG. 8 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position. FIG. 9 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the second turning position.
　図１０は、工具格納部が第２状態とされ、第１工具保持部が第３旋回位置に配置された場合（扉部が開状態）の工作機械の外観を示す斜視図である。図１１は、工具格納部が第２状態とされ、第１工具保持部が第３旋回位置に配置された場合の工作機械の内部を示す側面図である。図１２は、工具格納部が第２状態とされ、第１工具保持部が第３旋回位置に配置された場合の工作機械の内部を示す上面図である。 FIG. 10 is a perspective view showing the appearance of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position (the door section is open). FIG. 11 is a side view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position. FIG. 12 is a top view showing the inside of the machine tool when the tool storage section is in the second state and the first tool holding section is arranged at the third turning position.
　図１３は、工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す斜視図である。図１４は、工具格納部が第１状態とされ、第１工具保持部が第２旋回位置に配置された場合の工作機械の内部を示す側面図である。図１５は、工具格納部が第１状態とされ、第１工具保持部が第１旋回位置に配置された場合の工作機械の内部を示す斜視図である。図１６は、工具格納部が第１状態とされ、第１工具保持部が第１旋回位置に配置された場合（ＡＴＣ前段）の工作機械の内部を示す側面図である。図１７は、工具格納部が第１状態とされ、第１工具保持部が第１旋回位置に配置された場合（ＡＴＣ後段）の工作機械の内部を示す斜視図である。 FIG. 13 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position. FIG. 14 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the second turning position. FIG. 15 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position. FIG. 16 is a side view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (before ATC). FIG. 17 is a perspective view showing the inside of the machine tool when the tool storage section is in the first state and the first tool holding section is arranged at the first turning position (after ATC).
　図１から図１７を参照して、第１動作体６１は、接続部６５を有する。接続部６５は、工具格納部５０（第１動作体６１）において、支持部材４０に接続される部位である。 1 to 17, the first operating body 61 has a connecting portion 65. As shown in FIG. The connection portion 65 is a portion connected to the support member 40 in the tool storage portion 50 (first operating body 61).
　図４に示されるように、接続部６５は、第１工具保持部５３に保持される工具Ｔの軸線方向（工具中心軸２１０の軸方向）において、第１工具保持部５３から離れた位置に設けられている。接続部６５は、第１工具保持部５３に保持される工具Ｔの軸線方向において、第１工具保持部５３および第２工具保持部５６の間の位置に設けられている。接続部６５は、第１工具保持部５３に保持される工具Ｔの軸線方向において、第１工具保持部５３よりも第２工具保持部５６寄りの位置に設けられている。 As shown in FIG. 4 , the connecting portion 65 is located away from the first tool holding portion 53 in the axial direction of the tool T held by the first tool holding portion 53 (the axial direction of the tool central axis 210). is provided. The connecting portion 65 is provided at a position between the first tool holding portion 53 and the second tool holding portion 56 in the axial direction of the tool T held by the first tool holding portion 53 . The connecting portion 65 is provided at a position closer to the second tool holding portion 56 than the first tool holding portion 53 in the axial direction of the tool T held by the first tool holding portion 53 .
　接続部６５は、工具格納部５０が、第１工具保持部５３に保持される工具Ｔの軸線方向が水平方向となる第１状態５０Ａ（図１から図７、および、図１３から図１７に示される状態）と、第１工具保持部５３に保持される工具Ｔの軸線方向が水平方向に対して角度をなす方向となり、かつ、第１工具保持部５３が接続部６５よりも下方に配置される第２状態５０Ｂ（図８から図１２に示される状態）との間で動作可能なように、支持部材４０に接続されている。 The connection portion 65 is configured such that the tool storage portion 50 is in the first state 50A (FIGS. 1 to 7 and FIGS. 13 to 17) in which the axial direction of the tool T held by the first tool holding portion 53 is horizontal. ), the axial direction of the tool T held by the first tool holding portion 53 forms an angle with the horizontal direction, and the first tool holding portion 53 is arranged below the connecting portion 65. and a second state 50B (the state shown in FIGS. 8-12).
　後で詳細に説明するが、第１状態５０Ａは、ワーク加工時の工具格納部５０の状態であり、工具格納部５０のホームポジションに対応している。第１状態５０Ａは、工具マガジン１０および工具主軸１６の間における自動工具交換時の工具格納部５０の状態でもある。第２状態５０Ｂは、作業者が工具マガジン１０に収容される工具を交換する手動工具交換時の工具格納部５０の状態である。 As will be described in detail later, the first state 50A is the state of the tool storage section 50 during work machining, and corresponds to the home position of the tool storage section 50. The first state 50A is also the state of the tool storage section 50 during automatic tool change between the tool magazine 10 and the tool spindle 16 . The second state 50B is the state of the tool storage section 50 when the operator replaces the tools stored in the tool magazine 10 manually.
　接続部６５は、工具格納部５０が第１軸１４０を中心に回動可能なように、支持部材４０に接続されている。工具格納部５０（第１動作体６１、第２動作体６３および第３動作体５１）は、第１軸１４０を中心にして、第１状態５０Ａおよび第２状態５０Ｂの間で旋回する。第１軸１４０は、水平方向（Ｘ軸方向）に延びている。接続部６５は、第１軸１４０を中心とする軸体からなり、図示しない軸受けを介して支持部材４０に接続されている。 The connection portion 65 is connected to the support member 40 so that the tool storage portion 50 can rotate around the first shaft 140 . Tool storage 50 (first action body 61, second action body 63 and third action body 51) pivots about first axis 140 between first state 50A and second state 50B. The first axis 140 extends in the horizontal direction (X-axis direction). The connecting portion 65 is formed of a shaft centered on the first shaft 140 and connected to the support member 40 via a bearing (not shown).
　工具格納部５０の旋回運動に伴って、第１工具保持部５３に保持される工具Ｔの工具中心軸２１０は、Ｙ軸－Ｚ軸平面の面内で移動する。第１軸１４０は、第１工具保持部５３に保持される工具Ｔの軸線方向と直交関係である。第１軸１４０は、第２軸１６０と直交関係である。 Along with the turning motion of the tool storage section 50, the tool central axis 210 of the tool T held by the first tool holding section 53 moves within the plane of the Y-axis-Z-axis plane. The first axis 140 is orthogonal to the axial direction of the tool T held by the first tool holding portion 53 . First axis 140 is orthogonal to second axis 160 .
　工具マガジン１０は、アクチュエータ８６をさらに有する。アクチュエータ８６は、工具格納部５０に接続されている。アクチュエータ８６は、支持部材４０に対して、工具格納部５０を第１状態５０Ａおよび第２状態５０Ｂの間で動作（旋回）させる。 The tool magazine 10 further has an actuator 86. Actuator 86 is connected to tool storage 50 . Actuator 86 operates (pivots) tool storage section 50 with respect to support member 40 between first state 50A and second state 50B.
　図３に示されるように、アクチュエータ８６は、シリンダケース８７と、ピストンロッド８８とを有する油圧ピストンからなる。ピストンロッド８８は、一方向に延びるとともに、シリンダケース８７に嵌装されている。シリンダケース８７に対して油圧が供給されることによって、ピストンロッド８８は、その軸線方向に沿って伸張動作したり、短縮動作したりする。 As shown in FIG. 3, the actuator 86 consists of a hydraulic piston having a cylinder case 87 and a piston rod 88. The piston rod 88 extends in one direction and is fitted in the cylinder case 87 . By supplying hydraulic pressure to the cylinder case 87, the piston rod 88 is extended or shortened along its axial direction.
　シリンダケース８７は、回動中心軸１５０を中心に回動可能なように、支持部材４０に接続されている。回動中心軸１５０は、第１軸１４０と平行な方向（Ｘ軸方向）に延びている。ピストンロッド８８の先端部は、回動中心軸１５５を中心に回動可能なように、工具格納部５０に接続されている。ピストンロッド８８の先端部は、接続部６５から第１軸１４０の半径方向外側に離れた位置で、第１動作体６１に接続されている。回動中心軸１５０は、第１軸１４０および回動中心軸１５０の各軸と平行な方向（Ｘ軸方向）に延びている。 The cylinder case 87 is connected to the support member 40 so as to be rotatable around the rotation center shaft 150 . The rotation center shaft 150 extends in a direction (X-axis direction) parallel to the first shaft 140 . A distal end portion of the piston rod 88 is connected to the tool storage section 50 so as to be rotatable about the rotation center shaft 155 . A distal end portion of the piston rod 88 is connected to the first operating body 61 at a position spaced radially outward of the first shaft 140 from the connecting portion 65 . The rotation center shaft 150 extends in a direction (X-axis direction) parallel to each axis of the first shaft 140 and the rotation center shaft 150 .
　ピストンロッド８８の伸張動作に伴って、工具格納部５０は、第１状態５０Ａから第２状態５０Ｂに向けて旋回する。ピストンロッド８８の短縮動作に伴って、工具格納部５０は、第２状態５０Ｂから第１状態５０Ａに向けて旋回する。 Along with the extension operation of the piston rod 88, the tool storage section 50 pivots from the first state 50A toward the second state 50B. As the piston rod 88 shortens, the tool storage section 50 pivots from the second state 50B toward the first state 50A.
　なお、工具格納部５０を第１状態５０Ａおよび第２状態５０Ｂの間で動作させるアクチュエータは、特に限定されず、たとえば、接続部６５に対して回転運動を出力するモータであってもよい。 The actuator that operates the tool storage section 50 between the first state 50A and the second state 50B is not particularly limited, and may be, for example, a motor that outputs rotational motion to the connection section 65.
　図１から図７、および、図１３から図１７に示されるように、工具格納部５０が第１状態５０Ａとされた場合に、第１工具保持部５３に保持される工具Ｔの工具中心軸２１０は、水平方向（Ｚ軸方向）に延びている。第１工具保持部５３に保持される工具Ｔの工具中心軸２１０は、工具主軸１６に保持される工具Ｔの工具中心軸２１０と平行である。第２軸１６０は、水平方向（Ｚ軸方向）に延びている。 As shown in FIGS. 1 to 7 and FIGS. 13 to 17, when the tool storage section 50 is in the first state 50A, the tool central axis of the tool T held by the first tool holding section 53 210 extends in the horizontal direction (Z-axis direction). A tool center axis 210 of the tool T held by the first tool holding portion 53 is parallel to the tool center axis 210 of the tool T held by the tool spindle 16 . The second axis 160 extends in the horizontal direction (Z-axis direction).
　図８から図１２に示されるように、工具格納部５０が第２状態５０Ｂとされた場合に、第１工具保持部５３に保持される工具Ｔの軸線方向は、上下方向（Ｙ軸方向）である。すなわち、第１工具保持部５３に保持される工具Ｔの軸線方向は、水平方向に対して９０°の角度をなしている。第１工具保持部５３に保持される工具Ｔの軸線方向が水平方向に対してなす角度（０°を越え９０°以下の範囲）は、４５°以上であることが好ましく、７０°以上であることがさらに好ましい。 As shown in FIGS. 8 to 12, when the tool storage section 50 is in the second state 50B, the axial direction of the tool T held by the first tool holding section 53 is the vertical direction (Y-axis direction). is. That is, the axial direction of the tool T held by the first tool holding portion 53 forms an angle of 90° with respect to the horizontal direction. The angle formed by the axial direction of the tool T held by the first tool holding portion 53 with respect to the horizontal direction (range of more than 0° and 90° or less) is preferably 45° or more, and preferably 70° or more. is more preferred.
　第１工具保持部５３は、接続部６５（第１軸１４０）よりも下方に配置されている。第２工具保持部５６は、接続部６５（第１軸１４０）よりも上方に配置されている。第１工具保持部５３および第２工具保持部５６は、開状態とされた開口部２４（前面開口部２４Ｓ）がなす開口と対向している。第１工具保持部５３および第２工具保持部５６は、Ｘ軸方向において、開状態とされた前面開口部２４Ｓがなす開口と対向している。 The first tool holding portion 53 is arranged below the connecting portion 65 (first shaft 140). The second tool holding portion 56 is arranged above the connecting portion 65 (first shaft 140). The first tool holding portion 53 and the second tool holding portion 56 face the opening formed by the opened opening 24 (front opening 24S). The first tool holding portion 53 and the second tool holding portion 56 face the opening formed by the open front opening 24S in the X-axis direction.
　Ｙ軸方向における第１工具保持部５３および第１軸１４０の間の距離は、Ｙ軸方向における第１軸１４０および第２工具保持部５６の間の距離以上であってもよい。第１工具保持部５３に最大工具長の工具Ｔが保持される場合に、Ｙ軸方向におけるシャンク部Ｓｈおよび第１軸１４０の間の距離は、Ｙ軸方向における第１軸１４０および工具Ｔの先端部の間の距離以上であってもよい。 The distance between the first tool holding portion 53 and the first shaft 140 in the Y-axis direction may be greater than or equal to the distance between the first shaft 140 and the second tool holding portion 56 in the Y-axis direction. When the first tool holding portion 53 holds the tool T with the maximum tool length, the distance between the shank portion Sh and the first shaft 140 in the Y-axis direction is the distance between the first shaft 140 and the tool T in the Y-axis direction. It may be greater than or equal to the distance between the tips.
　工具格納部５０は、自動工具交換機構６０をさらに有する。自動工具交換機構６０は、工具マガジン１０（第１工具保持部５３）および工具主軸１６の間で工具を自動的に交換するように構成されている。 The tool storage section 50 further has an automatic tool changer 60 . The automatic tool changing mechanism 60 is configured to automatically change tools between the tool magazine 10 (first tool holder 53 ) and the tool spindle 16 .
　図３から図５に示されるように、自動工具交換機構６０は、旋回機構部８０を有する。旋回機構部８０は、第１工具保持部５３を第２軸１６０を中心に旋回させる。旋回機構部８０は、第３動作体５１とともに第２動作体６３を、第２軸１６０を中心に旋回させる。 　As shown in FIGS. 3 to 5, the automatic tool changer 60 has a turning mechanism 80. As shown in FIG. The turning mechanism part 80 turns the first tool holding part 53 around the second shaft 160 . The turning mechanism section 80 turns the second operating body 63 together with the third operating body 51 around the second axis 160 .
　旋回機構部８０は、モータ８１と、減速機８３と、軸受け８５とを有する。軸受け８５は、第１動作体６１および第２動作体６３の間に介挿されている。軸受け８５は、第２動作体６３を、第２軸１６０を中心に回転可能なように支持している。モータ８１および減速機８３は、第１動作体６１に取り付けられている。モータ８１および減速機８３は、第２軸１６０の軸上に並んで設けられている。モータ８１は、第２軸１６０を中心とする回転運動を出力する。モータ８１の出力軸は、減速機８３に接続されている。減速機８３は、モータ８１からの回転運動を減速して、第２動作体６３に出力する。 The turning mechanism section 80 has a motor 81 , a speed reducer 83 and a bearing 85 . The bearing 85 is interposed between the first operating body 61 and the second operating body 63 . The bearing 85 supports the second operating body 63 so as to be rotatable around the second shaft 160 . A motor 81 and a speed reducer 83 are attached to the first operating body 61 . The motor 81 and the speed reducer 83 are arranged side by side on the second shaft 160 . Motor 81 outputs rotational motion about second axis 160 . An output shaft of the motor 81 is connected to a reduction gear 83 . The speed reducer 83 reduces the speed of the rotational motion from the motor 81 and outputs it to the second operating body 63 .
　図１から図１７に示されるように、旋回機構部８０は、第１工具保持部５３を、第１旋回位置５３Ｅ、第２旋回位置５３Ｃおよび第３旋回位置５３Ｄの間で移動させる。第１旋回位置５３Ｅ、第２旋回位置５３Ｃおよび第３旋回位置５３Ｄは、第２軸１６０を中心とする位相位置である。旋回機構部８０による第１工具保持部５３の旋回方向において、第２旋回位置５３Ｃは、第１旋回位置５３Ｅおよび第３旋回位置５３Ｄの間に位置している。 As shown in FIGS. 1 to 17, the turning mechanism section 80 moves the first tool holding section 53 among the first turning position 53E, the second turning position 53C and the third turning position 53D. The first pivot position 53E, the second pivot position 53C and the third pivot position 53D are phase positions about the second axis 160. FIG. In the turning direction of the first tool holding portion 53 by the turning mechanism portion 80, the second turning position 53C is positioned between the first turning position 53E and the third turning position 53D.
　後で詳細に説明するが、第２旋回位置５３Ｃは、ワーク加工時の第１工具保持部５３の旋回位置であり、第１工具保持部５３の基本姿勢に対応している。第１旋回位置５３Ｅは、工具マガジン１０および工具主軸１６の間における自動工具交換時の第１工具保持部５３の旋回位置である。第１旋回位置５３Ｅは、第１工具保持部５３により保持される複数の工具Ｔのうちの自動工具交換の対象となる交換工具Ｔａの位置に対応して変化する。第３旋回位置５３Ｄは、作業者が工具マガジン１０に収容される工具を交換する手動工具交換時の第１工具保持部５３の旋回位置である。 As will be described in detail later, the second turning position 53C is the turning position of the first tool holding part 53 during workpiece machining, and corresponds to the basic posture of the first tool holding part 53. The first turning position 53E is the turning position of the first tool holding part 53 during automatic tool change between the tool magazine 10 and the tool spindle 16 . The first turning position 53E changes according to the position of the replacement tool Ta, which is the target of automatic tool replacement, among the plurality of tools T held by the first tool holding portion 53. As shown in FIG. The third turning position 53D is the turning position of the first tool holding portion 53 during manual tool exchange by the operator for exchanging the tools stored in the tool magazine 10 .
　自動工具交換機構６０は、スライド機構部７０をさらに有する。スライド機構部７０は、第１工具保持部５３を第２軸１６０の軸方向にスライドさせる。スライド機構部７０は、第３動作体５１を第２軸１６０の軸方向にスライドさせる。スライド機構部７０は、第１工具保持部５３を、第１工具保持部５３に保持される工具Ｔ（シャンク部Ｓｈ）が工具主軸１６から抜け出す位置と、第１工具保持部５３に保持される工具Ｔ（シャンク部Ｓｈ）が工具主軸１６に挿入される位置との間でスライドさせる。 The automatic tool changing mechanism 60 further has a slide mechanism section 70 . The slide mechanism section 70 slides the first tool holding section 53 in the axial direction of the second shaft 160 . The slide mechanism section 70 slides the third operating body 51 in the axial direction of the second shaft 160 . The slide mechanism portion 70 moves the first tool holding portion 53 to a position where the tool T (shank portion Sh) held by the first tool holding portion 53 is removed from the tool spindle 16 and a position where the tool T (shank portion Sh) is held by the first tool holding portion 53 . The tool T (shank portion Sh) is slid between positions where it is inserted into the tool spindle 16 .
　図３から図５に示されるように、スライド機構部７０は、油圧ピストン７６と、リニアガイド７１とを有する。リニアガイド７１は、第２動作体６３および第３動作体５１の間に介挿されている。リニアガイド７１は、第３動作体５１を、第２軸１６０の軸方向にスライド可能なように支持している。油圧ピストン７６のシリンダケースは、第２動作体６３に取り付けられている。油圧ピストン７６のピストンロッドの先端部は、第３動作体５１に接続されている。油圧ピストン７６のシリンダケースに対して油圧が供給されることによって、油圧ピストン７６のピストンロッドは、第２軸１６０の軸方向に沿って伸張動作したり、短縮動作したりする。 As shown in FIGS. 3 to 5, the slide mechanism section 70 has a hydraulic piston 76 and a linear guide 71. The linear guide 71 is interposed between the second operating body 63 and the third operating body 51 . The linear guide 71 supports the third operating body 51 so as to be slidable in the axial direction of the second shaft 160 . A cylinder case of the hydraulic piston 76 is attached to the second operating body 63 . A tip of the piston rod of the hydraulic piston 76 is connected to the third operating body 51 . By supplying hydraulic pressure to the cylinder case of the hydraulic piston 76 , the piston rod of the hydraulic piston 76 extends or shortens along the axial direction of the second shaft 160 .
　続いて、ワーク加工時の工具マガジン１０の状態について説明する。図１から図７、図１３および図１４を参照して、ワーク加工時、工具格納部５０は、第１状態５０Ａとされ、第１工具保持部５３は、第２旋回位置５３Ｃに配置されている。 Next, the state of the tool magazine 10 during workpiece machining will be described. 1 to 7, 13 and 14, during work machining, the tool storage portion 50 is in the first state 50A, and the first tool holding portion 53 is arranged at the second turning position 53C. there is
　第３動作体５１（第１工具保持部５３）は、第１軸１４０よりも上方に配置されている。第３動作体５１（第１工具保持部５３）は、第２軸１６０よりも上方に配置されている。第３動作体５１（第１工具保持部５３）は、第２動作体６３の上方に配置されている。 The third operating body 51 (first tool holding portion 53) is arranged above the first shaft 140. The third operating body 51 (first tool holding portion 53 ) is arranged above the second shaft 160 . The third operating body 51 (first tool holding portion 53 ) is arranged above the second operating body 63 .
　図１４に示されるように、工具格納部５０は、Ｚ軸方向に見た場合に、Ｘ軸－Ｙ軸平面内における工具主軸１６の移動範囲と重ならないように設けられている。第３動作体５１（第１工具保持部５３）は、後述する工具交換位置１６Ｆに位置決めされた工具主軸１６よりも上方に配置されている。工具主軸１６が工具交換位置１６Ｆに位置決めされた場合に、第２軸１６０は、工具主軸１６の回転中心軸１１０から、＋Ｘ軸方向、かつ、＋Ｙ軸方向（上方）にシフトした位置に設けられている。 As shown in FIG. 14, the tool storage section 50 is provided so as not to overlap the movement range of the tool spindle 16 within the X-Y axis plane when viewed in the Z-axis direction. The third operating body 51 (first tool holding portion 53) is arranged above the tool spindle 16 positioned at a tool changing position 16F, which will be described later. When the tool spindle 16 is positioned at the tool exchange position 16F, the second shaft 160 is provided at a position shifted in the +X-axis direction and the +Y-axis direction (upward) from the rotation center axis 110 of the tool spindle 16. ing.
　図１および図６に示されるように、第１工具保持部５３に保持される工具Ｔは、天井開口部２４Ｔに配置されている。可動カバー２８は、扉部２６の閉状態において、第３動作体５１（基部５２，庇部５８）とともに天井開口部２４Ｔを閉塞している。第１工具保持部５３に保持される工具Ｔは、加工エリア２００の外側の空間に配置されている。第１動作体６１および第２動作体６３は、加工エリア２００に配置されている。可動カバー２８は、扉部２６が閉状態から開状態に向けてスライドした場合に、第１工具保持部５３に保持される工具Ｔの直上を通って、＋Ｚ軸方向にスライドする。 As shown in FIGS. 1 and 6, the tool T held by the first tool holding portion 53 is placed in the ceiling opening 24T. The movable cover 28 closes the ceiling opening 24T together with the third operating body 51 (the base portion 52 and the eaves portion 58) when the door portion 26 is closed. A tool T held by the first tool holding portion 53 is arranged in a space outside the machining area 200 . The first operating body 61 and the second operating body 63 are arranged in the processing area 200 . When the door portion 26 slides from the closed state to the open state, the movable cover 28 passes right above the tool T held by the first tool holding portion 53 and slides in the +Z-axis direction.
　本実施の形態では、ワーク加工時、工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第２旋回位置５３Ｃに配置される。この場合、後述するように、第２旋回位置５３Ｃは、ＡＴＣ時の第１旋回位置５３Ｅよりも開口部２４（前面開口部２４Ｓ）に近接して配置されるため、ワーク加工時に、第１工具保持部５３、および、第１工具保持部５３に保持される複数の工具Ｔを工具主軸１６から遠ざけることができる。また、第１工具保持部５３が第２軸１６０よりも上方に配置されるため、ワーク加工時に、第１工具保持部５３、および、第１工具保持部５３に保持される複数の工具Ｔを工具主軸１６からさらに遠ざけることができる。 In the present embodiment, during work machining, the tool storage section 50 is in the first state 50A, and the first tool holding section 53 is arranged at the second turning position 53C. In this case, as will be described later, the second turning position 53C is located closer to the opening 24 (the front opening 24S) than the first turning position 53E during ATC. The holding portion 53 and the plurality of tools T held by the first tool holding portion 53 can be kept away from the tool spindle 16 . Further, since the first tool holding portion 53 is arranged above the second shaft 160, the first tool holding portion 53 and the plurality of tools T held by the first tool holding portion 53 can be moved during machining of the workpiece. It can be further removed from the tool spindle 16 .
　これにより、工具マガジン１０の設置に起因する加工エリア２００の縮小を抑制することができる。 As a result, the shrinkage of the machining area 200 due to the installation of the tool magazine 10 can be suppressed.
　続いて、自動工具交換時の工具マガジン１０の動作について説明する。図１３から図１７中では、第１工具保持部５３に保持される複数の工具Ｔのうちの交換工具Ｔａを、工具主軸１６に装着する場合が想定されている。 Next, the operation of the tool magazine 10 during automatic tool change will be described. 13 to 17, it is assumed that the replacement tool Ta among the plurality of tools T held by the first tool holding portion 53 is mounted on the tool spindle 16. FIG.
　図１３から図１７を参照して、工具マガジン１０および工具主軸１６の間における自動工具交換時、工具マガジン１０を、ワーク加工時の工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第２旋回位置５３Ｃに配置された形態から、工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第１旋回位置５３Ｅに配置された形態に変化させる。 13 to 17, during automatic tool exchange between the tool magazine 10 and the tool spindle 16, the tool magazine 10 is placed in the first state 50A, and the tool storage section 50 is placed in the first state 50A during work machining. The configuration in which the portion 53 is arranged at the second turning position 53C is changed to the configuration in which the tool storage portion 50 is brought to the first state 50A and the first tool holding portion 53 is arranged at the first turning position 53E.
　より具体的には、図１３および図１４に示されるように、工具主軸１６を工具交換位置１６Ｆに移動させる。工具主軸１６が工具交換位置１６Ｆに位置決めされた場合に、Ｚ軸方向に見て、第２軸１６０を中心とする円弧２２０の円周上に、工具主軸１６の回転中心軸１１０が配置される。 More specifically, as shown in FIGS. 13 and 14, the tool spindle 16 is moved to the tool change position 16F. When the tool spindle 16 is positioned at the tool exchange position 16F, the rotation center axis 110 of the tool spindle 16 is arranged on the circumference of an arc 220 centered on the second axis 160 when viewed in the Z-axis direction. .
　図１５および図１６に示されるように、工具格納部５０を第１状態５０Ａとしたまま、旋回機構部８０により第２動作体６３および第３動作体５１を第２軸１６０を中心に旋回させることによって、第１工具保持部５３を第２旋回位置５３Ｃから第１旋回位置５３Ｅまで移動させる。第１工具保持部５３に保持される複数の工具Ｔは、加工エリア２００の外部の空間から加工エリア２００内に進入する。第１工具保持部５３および第２工具保持部５６により保持される複数の工具Ｔのシャンク部Ｓｈは、工具主軸１６の主軸端面上を通って、第２軸１６０を中心とする周方向に移動する。 As shown in FIGS. 15 and 16, the second operating body 63 and the third operating body 51 are turned around the second axis 160 by the turning mechanism part 80 while the tool storage part 50 is kept in the first state 50A. Thereby, the first tool holding part 53 is moved from the second turning position 53C to the first turning position 53E. A plurality of tools T held by the first tool holding portion 53 enter the machining area 200 from a space outside the machining area 200 . The shank portions Sh of the plurality of tools T held by the first tool holding portion 53 and the second tool holding portion 56 pass over the spindle end surface of the tool spindle 16 and move in the circumferential direction about the second axis 160. do.
　工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第１旋回位置５３Ｅに配置された場合に、交換工具Ｔａがその軸線方向において工具主軸１６と対向する。交換工具Ｔａの工具中心軸２１０と、工具主軸１６の回転中心軸１１０とが、Ｚ軸方向において一直線に延びる。 When the tool storage section 50 is in the first state 50A and the first tool holding section 53 is arranged at the first turning position 53E, the replacement tool Ta faces the tool spindle 16 in its axial direction. The tool center axis 210 of the replacement tool Ta and the rotation center axis 110 of the tool spindle 16 extend straight in the Z-axis direction.
　図１７を参照して、スライド機構部７０により第３動作体５１を－Ｚ軸方向にスライドさせることにより、交換工具Ｔａを工具主軸１６に挿入する。工具主軸１６に内蔵されたクランプ機構部により、交換工具Ｔａのシャンク部Ｓｈをクランプする。 With reference to FIG. 17, the replacement tool Ta is inserted into the tool spindle 16 by sliding the third operating body 51 in the -Z-axis direction using the slide mechanism portion 70 . A shank portion Sh of the exchange tool Ta is clamped by a clamping mechanism built in the tool spindle 16 .
　旋回機構部８０により第２動作体６３および第３動作体５１を第２軸１６０を中心に微小角度だけ旋回させながら、スライド機構部７０により第３動作体５１を＋Ｚ軸方向にスライドさせることにより、第１工具保持部５３による交換工具Ｔａの保持を解除しながら、第１工具保持部５３を交換工具Ｔａから離脱させる。旋回機構部８０により第２動作体６３および第３動作体５１を第２軸１６０を中心に旋回させることによって、第１工具保持部５３を第２旋回位置５３Ｃに戻す。 While rotating the second operating body 63 and the third operating body 51 about the second axis 160 by a minute angle by the turning mechanism section 80, the slide mechanism section 70 slides the third operating body 51 in the +Z-axis direction. , the first tool holding portion 53 is released from the exchange tool Ta while releasing the holding of the exchange tool Ta by the first tool holding portion 53 . By rotating the second operating body 63 and the third operating body 51 around the second axis 160 by the rotating mechanism section 80, the first tool holding section 53 is returned to the second rotating position 53C.
　なお、工具主軸１６に装着された工具を工具格納部５０に格納する場合、空にした第１工具保持部５３を用いて、上記と同様のステップを実行すればよい。 When the tool mounted on the tool spindle 16 is stored in the tool storage section 50, the same steps as above may be performed using the first tool holding section 53 that has been emptied.
　第２旋回位置５３Ｃは、第１旋回位置５３Ｅよりも開口部２４（前面開口部２４Ｓ）に近接して配置されている。工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第２旋回位置５３Ｃに配置された場合の第１工具保持部５３と、開口部２４（前面開口部２４Ｓ）との間のＸ軸方向における最短距離は、工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第１旋回位置５３Ｅに配置された場合の第１工具保持部５３と、開口部２４（前面開口部２４Ｓ）との間のＸ軸方向における最短距離よりも小さい。 The second turning position 53C is arranged closer to the opening 24 (front opening 24S) than the first turning position 53E. Between the first tool holding portion 53 and the opening 24 (front opening 24S) when the tool storage portion 50 is in the first state 50A and the first tool holding portion 53 is arranged at the second turning position 53C in the X-axis direction is the first tool holding portion 53 and the opening 24 when the tool storage portion 50 is in the first state 50A and the first tool holding portion 53 is arranged at the first turning position 53E. (front opening 24S) in the X-axis direction.
　本実施の形態では、工具格納部５０が第１状態５０Ａとされた場合の第１工具保持部５３に保持される工具Ｔの軸線方向と、工具主軸１６に装着される工具Ｔの軸線方向とが平行であるため、旋回機構部８０およびスライド機構部７０からなる簡易な構成の自動工具交換機構６０によって、工具マガジン１０および工具主軸１６の間の自動工具交換を実現することができる。 In the present embodiment, the axial direction of the tool T held by the first tool holding portion 53 when the tool storage portion 50 is in the first state 50A and the axial direction of the tool T mounted on the tool spindle 16 are parallel to each other, automatic tool exchange between the tool magazine 10 and the tool spindle 16 can be realized by the simple automatic tool exchange mechanism 60 consisting of the turning mechanism section 80 and the slide mechanism section 70 .
　続いて、手動工具交換時の工具マガジン１０の動作について説明する。図７から図１２を参照して、工具格納部５０は、第１工具保持部５３が第２旋回位置５３Ｃに配置された場合に、第１状態５０Ａおよび第２状態５０Ｂの間で動作可能である。作業者が工具マガジン１０に収容される工具Ｔを交換する手動工具交換時、工具マガジン１０を、ワーク加工時の工具格納部５０が第１状態５０Ａとされ、第１工具保持部５３が第２旋回位置５３Ｃに配置された形態から、工具格納部５０が第２状態５０Ｂとされ、第１工具保持部５３が第３旋回位置５３Ｄに配置された形態に変化させる。 Next, the operation of the tool magazine 10 during manual tool replacement will be described. 7 to 12, tool storage portion 50 is operable between first state 50A and second state 50B when first tool holding portion 53 is positioned at second pivot position 53C. be. When an operator replaces a tool T stored in the tool magazine 10 manually, the tool magazine 10 is set to the first state 50A, and the first tool holding portion 53 is set to the second state 50A. The configuration in which the tool storage portion 50 is placed in the second state 50B is changed from the configuration in which the tool storage portion 50 is arranged in the turning position 53C, and the configuration in which the first tool holding portion 53 is arranged in the third turning position 53D.
　より具体的には、図８および図９に示されるように、アクチュエータ８６を伸張動作させることにより、第１動作体６１を第２動作体６３および第３動作体５１とともに、第１軸１４０を中心に旋回させる。これにより、工具格納部５０を第１状態５０Ａから第２状態５０Ｂとする。 More specifically, as shown in FIGS. 8 and 9, by extending the actuator 86, the first operating body 61 is moved along with the second operating body 63 and the third operating body 51, and the first shaft 140 is moved. Swirl to center. As a result, the tool storage section 50 is changed from the first state 50A to the second state 50B.
　図１０から図１２に示されるように、扉部２６を＋Ｚ軸方向にスライドさせ、開口部２４を開放する開状態とする。工具格納部５０を第２状態５０Ｂとしたまま、旋回機構部８０により第２動作体６３および第３動作体５１を第２軸１６０を中心に旋回させることによって、第１工具保持部５３を第２旋回位置５３Ｃから第３旋回位置５３Ｄまで移動させる。作業者は、開口部２４がなす開口を通じて、第１工具保持部５３に対する工具の着脱作業を行なう。 As shown in FIGS. 10 to 12, the door portion 26 is slid in the +Z-axis direction to open the opening portion 24 to an open state. By rotating the second operating body 63 and the third operating body 51 about the second axis 160 using the turning mechanism section 80 while the tool storage section 50 is in the second state 50B, the first tool holding section 53 is moved to the second state 50B. It is moved from the second turning position 53C to the third turning position 53D. The operator attaches and detaches the tool to/from the first tool holding portion 53 through the opening formed by the opening portion 24 .
　第３旋回位置５３Ｄは、第２旋回位置５３Ｃよりも開口部２４（前面開口部２４Ｓ）に近接して配置されている。工具格納部５０が第２状態５０Ｂとされ、第１工具保持部５３が第３旋回位置５３Ｄに配置された場合の第１工具保持部５３と、開口部２４（前面開口部２４Ｓ）との間のＸ軸方向における最短距離は、工具格納部５０が第２状態５０Ｂとされ、第１工具保持部５３が第２旋回位置５３Ｃに配置された場合の第１工具保持部５３と、開口部２４（前面開口部２４Ｓ）との間のＸ軸方向における最短距離よりも小さい。 The third turning position 53D is located closer to the opening 24 (front opening 24S) than the second turning position 53C. Between the first tool holding portion 53 and the opening 24 (front opening 24S) when the tool storage portion 50 is in the second state 50B and the first tool holding portion 53 is arranged at the third turning position 53D in the X-axis direction is the first tool holding portion 53 and the opening 24 when the tool storage portion 50 is in the second state 50B and the first tool holding portion 53 is arranged at the second turning position 53C. (front opening 24S) in the X-axis direction.
　第２旋回位置５３Ｃおよび第３旋回位置５３Ｄの間における第１工具保持部５３の旋回角度は、９０°以下である。第２旋回位置５３Ｃおよび第３旋回位置５３Ｄの間における第１工具保持部５３の旋回角度は、４５°以上であってもよいし、６０°以上であってもよい。 The turning angle of the first tool holding part 53 between the second turning position 53C and the third turning position 53D is 90° or less. The turning angle of the first tool holding part 53 between the second turning position 53C and the third turning position 53D may be 45° or more, or may be 60° or more.
　本実施の形態では、手動工具交換時に、工具格納部５０が第２状態５０Ｂとされ、第１工具保持部５３が第３旋回位置５３Ｄに配置されている。この場合、第１工具保持部５３に保持される工具Ｔの軸線方向が鉛直方向に延び、第１工具保持部５３が接続部６５よりも下方にあるため、作業者は、工具Ｔを上下に立つ姿勢にして把持しながら、より低い位置に配置された第１工具保持部５３に対して、工具Ｔの着脱作業を行なうことができる。 In the present embodiment, during manual tool replacement, the tool storage section 50 is in the second state 50B, and the first tool holding section 53 is arranged at the third turning position 53D. In this case, since the axial direction of the tool T held by the first tool holding portion 53 extends in the vertical direction and the first tool holding portion 53 is located below the connection portion 65, the operator can move the tool T up and down. The tool T can be attached to and detached from the first tool holding portion 53 arranged at a lower position while holding the tool T in a standing posture.
　また、第２状態５０Ｂとされた工具格納部５０は、開口部２４（前面開口部２４Ｓ）がなす開口と対向するため、作業者は、加工エリア２００の外部から開口部２４を通じて工具Ｔの着脱作業を行なうことができる。このとき、第２旋回位置５３Ｃは、第１旋回位置５３Ｅよりも開口部２４（前面開口部２４Ｓ）に近接して配置され、さらに、第３旋回位置５３Ｄは、第２旋回位置５３Ｃよりも開口部２４（前面開口部２４Ｓ）に近接して配置されるため、第１工具保持部５３に対する作業者の接近性を向上させることができる。 In addition, since the tool storage portion 50 in the second state 50B faces the opening formed by the opening portion 24 (the front opening portion 24S), the operator can attach and detach the tool T through the opening portion 24 from the outside of the processing area 200. work can be done. At this time, the second turning position 53C is located closer to the opening 24 (front opening 24S) than the first turning position 53E, and the third turning position 53D is closer to the opening than the second turning position 53C. Since it is arranged close to the portion 24 (front opening portion 24S), it is possible to improve the accessibility of the operator to the first tool holding portion 53 .
　したがって、工具Ｔが、軸長が大きく、大重量であるロングボーリングバーであっても、手動工具交換時の作業性を良好にすることができる。 Therefore, even if the tool T is a long boring bar with a large axial length and a large weight, it is possible to improve workability during manual tool change.
　以上に説明した、この発明の実施の形態における工具マガジン１０および工作機械１００の構造をまとめると、本実施の形態における工具マガジン１０は、複数の工具Ｔを格納するための工具格納部５０と、工具格納部５０を支持する支持部材４０とを備える。工具格納部５０は、複数の工具Ｔを着脱可能に保持する工具保持部としての第１工具保持部５３と、第１工具保持部５３に保持される工具Ｔの軸線方向において、第１工具保持部５３から離れた位置に設けられる接続部６５とを含む。接続部６５は、工具格納部５０が、第１工具保持部５３に保持される工具Ｔの軸線方向が水平方向となる第１状態５０Ａと、第１工具保持部５３に保持される工具Ｔの軸線方向が水平方向に対して角度をなす方向となり、かつ、第１工具保持部５３が接続部６５よりも下方に配置される第２状態５０Ｂとの間で動作可能なように、支持部材４０に接続される。 Summarizing the structures of the tool magazine 10 and the machine tool 100 according to the embodiment of the present invention described above, the tool magazine 10 according to the present embodiment includes a tool storage section 50 for storing a plurality of tools T, and a support member 40 that supports the tool storage section 50 . The tool storage portion 50 includes a first tool holding portion 53 as a tool holding portion that detachably holds a plurality of tools T, and a first tool holding portion 53 in the axial direction of the tools T held by the first tool holding portion 53 . and a connecting portion 65 provided at a position away from the portion 53 . The connection portion 65 is configured such that the tool storage portion 50 is in the first state 50A in which the axial direction of the tool T held by the first tool holding portion 53 is horizontal, and the tool T held by the first tool holding portion 53 is in the first state 50A. The support member 40 is operable between the second state 50B in which the axial direction forms an angle with the horizontal direction and the first tool holding portion 53 is arranged below the connecting portion 65. connected to
　本実施の形態における工作機械１００は、工具マガジン１０と、工具Ｔを回転させるための工具主軸１６とを備える。工具格納部５０が第１状態５０Ａとされた場合の第１工具保持部５３に保持される工具Ｔの軸線方向と、工具主軸１６に装着された工具Ｔの軸線方向とが平行である。工具格納部５０は、工具格納部５０が第１状態５０Ａとされた場合の第１工具保持部５３と、工具主軸１６との間で工具Ｔを交換するための自動工具交換機構６０をさらに含む。 A machine tool 100 according to the present embodiment includes a tool magazine 10 and a tool spindle 16 for rotating tools T. The axial direction of the tool T held by the first tool holding portion 53 when the tool storage portion 50 is in the first state 50A and the axial direction of the tool T mounted on the tool spindle 16 are parallel. The tool storage section 50 further includes an automatic tool changer 60 for exchanging tools T between the tool spindle 16 and the first tool holding section 53 when the tool storage section 50 is in the first state 50A. .
　このように構成された、この発明の実施の形態における工具マガジン１０および工作機械１００によれば、作業者が工具の着脱を行なう手動工具交換時の作業性を良好にすることができる。 According to the tool magazine 10 and the machine tool 100 according to the embodiment of the present invention, which are configured in this way, it is possible to improve workability during manual tool changing, in which the operator attaches and detaches tools.
　なお、本発明における工作機械は、マシニングセンタに限られず、たとえば、旋削機能と、ミーリング機能とを有する複合加工機であってもよいし、ワークの付加加工（ＡＭ（Additive　manufacturing）加工）と、ワークの除去加工（ＳＭ（Subtractive　manufacturing）加工）とが可能なＡＭ／ＳＭハイブリッド加工機であってもよい。 Note that the machine tool in the present invention is not limited to a machining center, and may be, for example, a multitasking machine having a turning function and a milling function. It may be an AM/SM hybrid machine capable of removal machining (SM (subtractive manufacturing) machining).
　今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて請求の範囲によって示され、請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 The embodiments disclosed this time should be considered illustrative in all respects and not restrictive. The scope of the present invention is indicated by the scope of the claims rather than the above description, and is intended to include all changes within the meaning and scope equivalent to the scope of the claims.
　この発明は、マシニングセンタまたは複合加工機などの工作機械に適用される。 This invention is applied to machine tools such as machining centers or multitasking machines.
　１０　工具マガジン、１１　ベッド、１２　コラム、１３　踏み台、１６　工具主軸、１６Ｆ　工具交換位置、２１　カバー体、２２　天井カバー部、２３　前面カバー部、２４　開口部、２４Ｓ　前面開口部、２４Ｔ　天井開口部、２６　扉部、２８　可動カバー、３１　テーブル、４０　支持部材、５０　工具格納部、５０Ａ　第１状態、５０Ｂ　第２状態、５１　第３動作体、５２　基部、５３　第１工具保持部、５３Ｃ　第２旋回位置、５３Ｄ　第３旋回位置、５３Ｅ　第１旋回位置、５４　第１工具挿入部、５６　第２工具保持部、５７　第２工具挿入部、５８　庇部、６０　自動工具交換機構、６１　第１動作体、６３　第２動作体、６５　接続部、７０　スライド機構部、７１　リニアガイド、７６　油圧ピストン、８０　旋回機構部、８１　モータ、８３　減速機、８５　軸受け、８６　アクチュエータ、８７　シリンダケース、８８　ピストンロッド、１００　工作機械、１１０　回転中心軸、１２０　旋回中心軸、１４０　第１軸、１５０，１５５　回動中心軸、１６０　第２軸、２００　加工エリア、２１０　工具中心軸、２２０　円弧、Ｐ　パレット、Ｓｈ　シャンク部、Ｔ　工具、Ｔａ　交換工具。 10 tool magazine, 11 bed, 12 column, 13 step, 16 tool spindle, 16F tool change position, 21 cover body, 22 ceiling cover, 23 front cover, 24 opening, 24S front opening, 24T ceiling opening, 26 door portion, 28 movable cover, 31 table, 40 support member, 50 tool storage portion, 50A first state, 50B second state, 51 third operating body, 52 base portion, 53 first tool holding portion, 53C second turning Position, 53D third turning position, 53E first turning position, 54 first tool insertion portion, 56 second tool holding portion, 57 second tool insertion portion, 58 canopy portion, 60 automatic tool change mechanism, 61 first operating body , 63 second operating body, 65 connection part, 70 slide mechanism part, 71 linear guide, 76 hydraulic piston, 80 turning mechanism part, 81 motor, 83 reduction gear, 85 bearing, 86 actuator, 87 cylinder case, 88 piston rod, 100 machine tool, 110 rotation center axis, 120 rotation center axis, 140 first axis, 150, 155 rotation center axis, 160 second axis, 200 machining area, 210 tool center axis, 220 arc, P pallet, Sh shank part , T tool, Ta replacement tool.

Claims (11)

  1. 　複数の工具を格納するための工具格納部と、
    　前記工具格納部を支持する支持部材とを備え、
    　前記工具格納部は、
    　複数の前記工具を着脱可能に保持する工具保持部と、
    　前記工具保持部に保持される前記工具の軸線方向において、前記工具保持部から離れた位置に設けられる接続部とを含み、
    　前記接続部は、前記工具格納部が、前記工具保持部に保持される前記工具の軸線方向が水平方向となる第１状態と、前記工具保持部に保持される前記工具の軸線方向が水平方向に対して角度をなす方向となり、かつ、前記工具保持部が前記接続部よりも下方に配置される第２状態との間で動作可能なように、前記支持部材に接続される、工具マガジン。     a tool storage for storing a plurality of tools;
    a support member that supports the tool storage section,
    The tool storage section is
    a tool holder that detachably holds the plurality of tools;
    a connecting portion provided at a position away from the tool holding portion in the axial direction of the tool held by the tool holding portion;
    The connection portion has a first state in which the axial direction of the tool held by the tool holding portion is horizontal, and a first state in which the axial direction of the tool held by the tool holding portion is horizontal. a tool magazine connected to the support member operably between a second state in which the tool holding portion is positioned below the connecting portion.
  2. 　前記工具格納部が前記第２状態とされた場合に、前記工具保持部に保持される前記工具の軸線方向が上下方向となる、請求項１に記載の工具マガジン。 The tool magazine according to claim 1, wherein when the tool storage section is in the second state, the axial direction of the tool held by the tool holding section is the vertical direction.
  3. 　前記接続部は、前記工具格納部が、前記工具保持部に保持される前記工具の軸線方向に直交し、かつ、水平方向に平行な第１軸を中心に回動可能なように、前記支持部材に接続される、請求項１または２に記載の工具マガジン。 The connecting portion is configured such that the tool storage portion is rotatable about a first axis perpendicular to the axial direction of the tool held by the tool holding portion and parallel to the horizontal direction. 3. A tool magazine according to claim 1 or 2, connected to a member.
  4. 　前記工具は、ロングボーリングバーである、請求項１から３のいずれか１項に記載の工具マガジン。 The tool magazine according to any one of claims 1 to 3, wherein said tools are long boring bars.
  5. 　請求項１から４のいずれか１項に記載の工具マガジンと、
    　前記工具を回転させるための工具主軸とを備え、
    　前記工具格納部が前記第１状態とされた場合の前記工具保持部に保持される前記工具の軸線方向と、前記工具主軸に保持される前記工具の軸線方向とが平行であり、
    　前記工具格納部は、
    　前記工具格納部が前記第１状態とされた場合の前記工具保持部と、前記工具主軸との間で工具を交換するための自動工具交換機構をさらに含む、工作機械。     A tool magazine according to any one of claims 1 to 4;
    a tool spindle for rotating the tool;
    an axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state is parallel to an axial direction of the tool held by the tool spindle;
    The tool storage section is
    A machine tool further comprising an automatic tool change mechanism for exchanging tools between the tool holding portion and the tool spindle when the tool storage portion is in the first state.
  6. 　前記工具保持部は、複数の前記工具を第２軸を中心に円弧状に並ぶように保持し、
    　前記第２軸は、前記工具格納部が前記第１状態とされた場合の前記工具保持部に保持される前記工具の軸線方向と平行であり、
    　前記自動工具交換機構は、
    　前記工具格納部が前記第１状態とされた場合に、前記工具保持部に保持される複数の前記工具から選択されるいずれか１つの交換工具が、その軸線方向において前記工具主軸と対向するように、前記工具保持部を前記第２軸を中心に旋回させる旋回機構部と、
    　前記工具保持部を前記第２軸の軸方向にスライドさせるスライド機構部とを含む、請求項５に記載の工作機械。     The tool holding part holds the plurality of tools so as to be arranged in an arc around a second axis,
    The second axis is parallel to the axial direction of the tool held by the tool holding portion when the tool storage portion is in the first state,
    The automatic tool changing mechanism is
    When the tool storage section is in the first state, one replacement tool selected from the plurality of tools held in the tool holding section is arranged to face the tool spindle in its axial direction. a turning mechanism for turning the tool holding part around the second axis;
    6. The machine tool according to claim 5, further comprising a slide mechanism section for sliding said tool holding section in the axial direction of said second shaft.
  7. 　開口部が設けられ、ワークの加工エリアを区画形成するカバー体と、
    　前記開口部に設けられ、前記開口部を開放する開状態と、前記開口部を閉塞する閉状態との間で動作が可能な扉部とをさらに備え、
    　前記工具格納部が前記第２状態とされた場合に、前記工具保持部は、前記開状態とされた前記開口部がなす開口と対向する、請求項６に記載の工作機械。     a cover body provided with an opening and defining and forming a machining area for the workpiece;
    further comprising a door portion provided in the opening portion and operable between an open state in which the opening portion is opened and a closed state in which the opening portion is closed;
    7. The machine tool according to claim 6, wherein when said tool storage section is in said second state, said tool holding section faces an opening defined by said opening section in said open state.
  8. 　前記旋回機構部は、前記工具格納部が前記第１状態とされた場合に、前記工具保持部を、前記交換工具がその軸線方向において前記工具主軸と対向する第１旋回位置と、前記第１旋回位置よりも前記開口部に近接して配置される第２旋回位置との間で旋回させ、
    　前記工具格納部は、前記工具保持部が前記第２旋回位置に配置された場合に、前記第１状態および前記第２状態の間で動作可能とされる、請求項７に記載の工作機械。     When the tool storage section is in the first state, the turning mechanism section moves the tool holding section to a first turning position where the replacement tool faces the tool spindle in its axial direction, and a first turning position. pivoting between a second pivoting position located closer to the opening than the pivoting position;
    8. The machine tool according to claim 7, wherein said tool storage portion is operable between said first state and said second state when said tool holding portion is positioned at said second pivot position.
  9. 　前記工具格納部が前記第１状態とされ、かつ、前記工具保持部が前記第２旋回位置に配置された場合に、前記工具保持部は、前記第２軸よりも上方に位置決めされる、請求項８に記載の工作機械。 The tool holding portion is positioned above the second axis when the tool storage portion is in the first state and the tool holding portion is arranged at the second turning position. Item 9. The machine tool according to item 8.
  10. 　前記旋回機構部は、前記工具格納部が前記第２状態とされた場合に、前記工具保持部を、前記第２旋回位置と、前記第２旋回位置よりも前記開口部に近接して配置される第３旋回位置との間で旋回させる、請求項８または９に記載の工作機械。 The turning mechanism is configured to move the tool holding portion to the second turning position and closer to the opening than the second turning position when the tool storage portion is in the second state. 10. The machine tool according to claim 8 or 9, wherein the machine tool is pivoted to and from a third pivot position.
  11. 　前記工具マガジンおよび前記工具主軸を支持するためのベッドをさらに備え、
    　前記支持部材は、前記ベッドが設置される床面から分離して設けられ、前記ベッドに接続される、請求項５から１０のいずれか１項に記載の工作機械。     further comprising a bed for supporting the tool magazine and the tool spindle;
    The machine tool according to any one of claims 5 to 10, wherein said support member is provided separately from a floor surface on which said bed is installed and is connected to said bed.
PCT/JP2022/007774 2022-02-25 2022-02-25 Tool magazine and machine tool WO2023162116A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07178641A (en) * 1993-10-13 1995-07-18 Como Spa High-speed manufacturing device with movable tool magazine used for machining work
JP2005177917A (en) * 2003-12-18 2005-07-07 Mori Seiki Co Ltd Machine tool with boring bar magazine, and boring bar magazine
CN210335105U (en) * 2019-08-19 2020-04-17 重庆光能荣能汽车配件有限公司 Automatic hole milling device for bumper

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07178641A (en) * 1993-10-13 1995-07-18 Como Spa High-speed manufacturing device with movable tool magazine used for machining work
JP2005177917A (en) * 2003-12-18 2005-07-07 Mori Seiki Co Ltd Machine tool with boring bar magazine, and boring bar magazine
CN210335105U (en) * 2019-08-19 2020-04-17 重庆光能荣能汽车配件有限公司 Automatic hole milling device for bumper

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