WO2013161330A1 - Working machine - Google Patents

Working machine Download PDF

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Publication number
WO2013161330A1
WO2013161330A1 PCT/JP2013/050379 JP2013050379W WO2013161330A1 WO 2013161330 A1 WO2013161330 A1 WO 2013161330A1 JP 2013050379 W JP2013050379 W JP 2013050379W WO 2013161330 A1 WO2013161330 A1 WO 2013161330A1
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WO
WIPO (PCT)
Prior art keywords
workpiece
jig
machining head
guide
machining
Prior art date
Application number
PCT/JP2013/050379
Other languages
French (fr)
Japanese (ja)
Inventor
▲祐▼紀 山浦
大樹 酒井
一秀 伊藤
拓洋 大島
慎二 風間
砂原　俊介
Original Assignee
本田技研工業株式会社
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 本田技研工業株式会社 filed Critical 本田技研工業株式会社
Priority to JP2014512378A priority Critical patent/JP5777807B2/en
Publication of WO2013161330A1 publication Critical patent/WO2013161330A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
    • B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
    • B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
    • 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
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/02—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station
    • B23Q39/021—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like
    • B23Q39/022—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder
    • B23Q39/024—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being capable of being brought to act at a single operating station with a plurality of toolheads per workholder, whereby the toolhead is a main spindle, a multispindle, a revolver or the like with same working direction of toolheads on same workholder consecutive working of toolheads
    • 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
    • B23Q41/00—Combinations or associations of metal-working machines not directed to a particular result according to classes B21, B23, or B24
    • B23Q41/02—Features relating to transfer of work between machines
    • 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
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/04—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers
    • B23Q7/047—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting by means of grippers the gripper supporting the workpiece during machining
    • 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
    • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
    • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
    • B23Q7/1405—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with a series disposition of similar working devices

Definitions

  • the present invention relates to a machine tool including a workpiece conveyance jig for conveying a workpiece and a machining head for machining the workpiece.
  • a machine tool having a multi-axis machining head having a plurality of tools in one machining head is known (for example, see Patent Document 1).
  • FIG. 21 is a diagram for explaining the basic principle of a machine tool according to the prior art, and the machine tool 200 includes a processing unit 201 and a clamp unit 203 on a transfer line 202.
  • the machining unit 201 multi-axis machining heads 206 are provided at the tips of the six arms 205 of the rotation index 204, respectively.
  • the work 209 is attached to the turntable 207 via the jig 208, and the work 209 is processed by bringing the multi-axis processing head 206 close to the work 209.
  • the workpiece 209 can be machined in a plurality of steps by rotating the rotation index 204 and using different multi-axis machining heads 206.
  • the rotation index 204 is repeatedly started and stopped every 60 °.
  • the stopping accuracy needs to be sufficiently increased in order to affect the processing accuracy.
  • the rotation index 204 is heavy and has a large moment of inertia, so that the stop position tends to shift.
  • advanced feedback control is indispensable, which increases the cost of the entire apparatus.
  • the multi-axis machining head 206 is heavy, if a plurality of multi-axis machining heads are rotated with a rotation index, energy consumption increases and running cost increases. That is, there is a need for a machine tool that can simplify the structure of the apparatus, reduce the cost of the entire apparatus, and reduce the running cost.
  • An object of the present invention is to provide a machine tool that has a simple structure of the apparatus, can reduce the cost of the entire apparatus, and can reduce running costs.
  • a machine tool comprising: a workpiece conveying jig which is slidably provided on a gantry and conveys a workpiece; and a machining head which is fixed to the gantry and is attached to the workpiece conveying jig.
  • a power source for moving the workpiece conveying jig to a position facing the machining head, and a workpiece moving mechanism provided in the workpiece conveying jig for machining the workpiece portion of the workpiece close to the machining head A machine tool is provided.
  • a tool that is mounted downward on the processing head and processes the workpiece
  • a guide post that is provided on either the workpiece transfer jig or the processing head and extends in the vertical direction
  • the workpiece transfer A guide bush that is provided on either the jig or the machining head and through which the guide post is inserted, and the workpiece conveyance jig is raised so that the workpiece conveyance jig is connected to the machining head so that the workpiece can be raised and lowered.
  • the workpiece attached to the conveying jig is machined with a tool.
  • the workpiece conveyance jig is suspended from the gantry via a slide mechanism that slides the gantry, and the workpiece moving mechanism is vertically moved between the slide mechanism and the workpiece conveyance jig.
  • the workpiece conveying jig is lifted when the rod is extended and retracted, and the rod is retracted.
  • the power source is provided in the workpiece conveyance jig and causes the workpiece conveyance jig to self-propell.
  • the guide post and the guide bush constitute a positioning mechanism for positioning the machining head and the workpiece conveying jig
  • the machining head includes a plurality of spindles that respectively hold a plurality of tools
  • the machining head is provided with a number of tools necessary for at least two machining operations performed by raising the workpiece conveying jig to which the machining head is attached via the spindle.
  • a power source for moving the workpiece conveyance jig to a position facing the machining head, and a workpiece movement that is provided on the workpiece conveyance jig and moves the workpiece portion closer to the machining head It consists of a mechanism.
  • the workpiece transfer jig is moved to a position facing the machining head with a power source, and the workpiece transfer mechanism is provided in the workpiece conveyance jig.
  • this In the invention a complicated index mechanism is not required, the structure of the apparatus is simple, and the cost of the entire apparatus can be reduced.
  • the present invention provides the workpiece moving mechanism for one workpiece conveying jig, so that the structure of the apparatus can be simplified. And the cost of the entire apparatus can be reduced. Furthermore, if a plurality of heavy machining heads are exchanged with an exchange mechanism, the energy consumption increases. However, in the present invention, since only the workpiece conveying jig is moved, the energy consumption can be reduced and the running cost can be reduced.
  • tool or a machining head is inserted.
  • tool is suspended by the mount via the slide mechanism which slides a mount, and a to-be-processed part moving mechanism extends up and down to a slide mechanism and a workpiece transfer jig, and advances / retreats. It is connected via an advance / retreat rod. Since the work part moving mechanism is simply the advance / retreat rod connected to the slide mechanism, the work part moving mechanism can have a simple structure.
  • a power source is provided in a workpiece conveyance jig
  • tool raises is provided in the process head via the spindle. Since the processing head is provided with tools necessary for at least two processings, after the first processing is performed on the workpiece by the processing head, the workpiece conveying jig is moved, and the second processing is performed on the workpiece by the same processing head. Processing can be performed. As a result, the number of processes that can be performed by one machining head can be increased to a plurality, and the space for the machine tool can be saved.
  • FIG. 1 is a front view of a machine tool according to a first embodiment.
  • FIG. 2 is a cross-sectional view taken along line 2-2 of FIG.
  • FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 1 is a plan view of a machine tool according to Embodiment 1.
  • FIG. It is a figure explaining the movement process of a workpiece conveyance jig. It is a figure explaining a processing process. It is a figure explaining the case where two workpieces are processed at once by one processing head. It is a figure explaining the case where it processes twice on one workpiece
  • 6 is a cross-sectional view of a machine tool according to Embodiment 2.
  • FIG. 10 is a cross-sectional view taken along line 10-10 in FIG.
  • FIG. 10 is an operation diagram of the machine tool according to the second embodiment. It is a figure explaining the other aspect of the machine tool which concerns on Example 2.
  • FIG. It is a figure explaining the positional relationship of the guide post of another aspect of Example 2, and a guide bush. It is a figure explaining an eccentric bush. It is a figure explaining the further another aspect of the machine tool which concerns on Example 2.
  • FIG. It is a figure explaining the positional relationship of the guide post of another another aspect of Example 2, and a guide bush.
  • 6 is a cross-sectional view of a machine tool according to Embodiment 3.
  • FIG. FIG. 18 is an enlarged view of a region 18 in FIG. 17.
  • FIG. 18 is a cross-sectional view taken along line 19 in FIG. 17.
  • FIG. 10 is an operation diagram of the machine tool according to the third embodiment. It is a figure explaining the basic principle of the machine tool which concerns on a prior art.
  • the machine tool 10 includes a base 11, a support 12 standing on the support 11, a beam 13 provided on the upper end of the support 12, and the beam 13.
  • a gantry 14 provided below, a machining head 20 provided on the gantry 14 for machining the workpiece 15, a guide post 21 extending downward from the machining head 20, a rail 16 and a rack 17 provided along the gantry 14
  • a slide mechanism 30 slidably provided on the rails 16 and the rack 17, a workpiece transfer jig 40 that is suspended by the slide mechanism 30 and transfers the workpiece 15, and a chip provided below the processing head 20.
  • a recovery unit 18 for recovering the cutting fluid.
  • the slide mechanism 30 is provided integrally with the work conveying jig 40.
  • the slide mechanism 30 includes a slide main body 31, a power source 32 provided on the slide main body 31 for self-propelling the work conveyance jig 40, and suspended from the slide main body 31 so that the work conveyance jig 40 can be moved up and down. And a support rod 33 for supporting.
  • the workpiece conveying jig 40 includes a jig main body 41, a support bush 42 provided in the jig main body 41 and through which the support rod 33 is inserted, and a guide post 21 provided in the jig main body 41 through which the guide post 21 is inserted.
  • a guide bush 43 and a workpiece moving mechanism 50 that is provided in the jig main body 41 and moves the workpiece 15 of the workpiece 15 closer to the machining head.
  • a stopper piece 34 is provided at the lower end of the support rod 33, and when the stopper piece 34 abuts against the jig body 41, the downward movement of the workpiece conveying jig 40 is restricted.
  • the workpiece moving mechanism 50 includes a cylinder 51 provided in the jig main body 41 and an advancing / retracting rod 52 extending from the cylinder 51 and connected to the slide mechanism 30.
  • the workpiece transfer jig 40 is raised.
  • the workpiece 15 is brought close to the machining head 20 and the part to be machined of the workpiece 15 is machined.
  • the positioning mechanism 22 for positioning the workpiece conveyance jig 40 on the machining head 20 includes a guide post 21 provided on the machining head 20 and a guide bush 43 provided on the workpiece conveyance jig 40.
  • the workpiece transfer jig 40 is raised by the workpiece moving mechanism 50 and the guide post 21 is inserted into the guide bush 43, whereby the workpiece transfer jig 40 is positioned.
  • the machining head 20 includes a machining head main body 23, a spindle 25 that is provided below the machining head main body 23 and holds a tool 24, and a machining head that is provided above the machining head main body 23 and drives the spindle.
  • the machining head 20 is fixed to the beam 13 spanned between the columns 12 and 12 by a fixing member 27.
  • the guide post 21 is provided on the machining head 20 and the guide bush 43 is provided on the workpiece conveying jig 40.
  • the present invention is not limited to this, and the machining head 20 is moved upward by raising the workpiece conveying jig. If the workpiece conveying jig 40 is connected and positioned, the processing head 20 may be provided with a guide bush and the workpiece conveying jig 40 may be provided with a guide post.
  • the slide mechanism 30 includes a slide main body 31, a pinion 36 that is rotatably provided on the slide main body 31 via a first shaft 35 and meshes with the rack 17, and a first shaft 35.
  • the first wheel 37 (FIG. 2) mounted on the rail 16 (FIG. 2), the power source 32 provided on the slide main body 31 for driving the pinion 36, and the second shaft 38 on the slide main body 31.
  • a second wheel 39 mounted on the rail 16 so as to be freely rotatable.
  • the slide mechanism 30 can be moved by driving the power source 32 and rotating the pin-on 36 by an arbitrary amount.
  • a workpiece loading unit 53 for loading the workpiece 15 is provided on the right side of the machine tool 10.
  • a workpiece processing unit 54 in which a plurality of processing heads 20 are arranged is provided on the left side of the workpiece input unit 53 in the figure.
  • Two workpieces 15 and 15 are placed on the workpiece conveying jig 40.
  • the workpiece conveying jig 40 is moved to the left in the figure, and the workpieces 15 and 15 are sequentially processed by the workpiece processing units 54.
  • the workpiece 15 is set on the workpiece conveyance jig 40 as indicated by an arrow (1) by the workpiece loading unit 53.
  • the workpiece conveyance jig 40 is moved as shown by the arrow (2).
  • the workpiece moving mechanism 50 is operated, and the workpiece transfer jig 40 is raised as shown by the arrow (3).
  • the guide post 21 is first inserted into the guide bush 43, and the workpiece conveyance jig 40 is positioned on the machining head 20.
  • the positioned workpiece transfer jig 40 is further raised as indicated by an arrow (4).
  • FIG. 7A the two workpieces 15 are arranged on the left and right with respect to the traveling direction of the workpiece conveyance jig 40.
  • the work conveyance jig 40 is moved as shown by an arrow (7).
  • the entire two workpieces 15 are placed under the first machining head 20, and the two workpieces 15 are machined at a time.
  • the work conveying jig 40 is moved as indicated by an arrow (8).
  • the entire two workpieces 15 are placed under the second machining head 20, and the next machining is performed on the two workpieces 15 at a time.
  • the work conveying jig 40 is moved as indicated by an arrow (9). As a result, two workpieces can be processed at a time.
  • FIG. 8A the two workpieces 15 are arranged forward and backward with respect to the traveling direction of the workpiece conveyance jig 40.
  • the work conveying jig 40 is moved as indicated by an arrow (10).
  • the two workpieces 15 are moved under the first machining head 20 as a whole. That is, the front workpiece 15 is moved under the front tool 24 of the first machining head 20.
  • the rear workpiece 15 is moved under the tool 24 on the rear side of the first machining head.
  • two types of processing can be performed with one processing head 20.
  • the workpiece conveying jig 40 is moved as indicated by an arrow (12).
  • the front work 15 is detached from the first machining head 20.
  • the rear workpiece 15 is moved under the front tool 24 of the first machining head 20.
  • different types of machining can be performed on the rear workpiece 15 with the first machining head 20.
  • the work conveying jig 40 is moved as indicated by an arrow (13), and processing by the second processing head 20 is performed.
  • the machine tool 10 includes a biasing means 60 that biases the guide post 21 to the inner peripheral surface 44 of the hole of the guide bush 43.
  • the urging means 60 has an inclination mechanism 61 (see FIG. 10) for inclining the machining head 20 with respect to the gantry 14.
  • the tilt mechanism 61 includes a tilt shaft 62 that is provided below the processing head main body 23 and rotatably supports the processing head 20, and a bearing 63 that is provided on the gantry 14 and supports the tilt shaft 62.
  • the processing head 20 is disposed in a through hole 64 provided in the gantry 14.
  • the width of the through hole 64 is larger than the width of the lower part of the processing head main body 23.
  • a gap 65 is provided between the through hole 64 and the processing head main body 23.
  • the machining head 20 is tilted about the tilt axis 62.
  • the side of the processing head main body portion 23 abuts against the inner wall of the through hole 64, whereby the inclination of the processing head 20 is regulated.
  • Reference numeral 66 is a vertical line
  • reference numeral 67 is a parallel line parallel to the guide post 21.
  • the inclination angle between the vertical line 66 and the parallel line 67 is A. That is, the inclination angle of the machining head 20 with respect to the vertical line 66 is A. Note that the axes of the parallel lines 67, the guide posts 21, and the tool 24 are parallel.
  • a recess 71 is provided in the gantry 14, and an elastic body 72 is provided in the recess 71.
  • An arm 73 is provided in the processing head main body 23, and the arm 73 is biased by the elastic body 72. As a result, the guide post 21 is biased in a tilting direction.
  • the guide post 21 is inclined at an inclination angle A.
  • the workpiece conveyance jig 40 is raised as shown by an arrow (14).
  • the tapered portion 28 at the tip of the guide post 21 is inserted into the guide bush 43, and the guide post 21 is moved as indicated by an arrow (15).
  • the arm portion 73 is biased by the elastic body 72 with a force F1.
  • the guide post 21 is inserted into the guide bush 43. As shown in FIG. The guide post 21 is urged against the inner peripheral surface 44 of the guide bush 43 by a force F2. In this state, when the workpiece conveying jig 40 is raised and the workpiece is machined by the machining head 20, chatter due to machining can be reduced.
  • the biasing means 80 includes a plurality of guide posts 21 and 21 and guide bushes 43 and 43 through which the plurality of guide posts 21 and 21 are inserted.
  • the distance between the centers of the two guide bushes 43, 43 is L1.
  • the distance between the centers of the two guide posts 21 and 21 is L2.
  • L1 ⁇ L2, and the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43.
  • the guide posts 21 and 21 are inserted into the two guide bushes 43 and 43, respectively. Since the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43 in the state before the guide posts 21 and 21 are inserted, the guide posts 21 and 21 guide the guide posts 21 and 21.
  • the inner peripheral surfaces 44, 44 of the bushes 43, 43 are urged by a force F3. In this state, when the workpiece transfer jig 40 is raised and the workpiece is processed by the processing head 20, chatter due to the processing can be reduced.
  • FIG. 13A is a diagram showing the distance relationship between the guide post 220 and the hole of the guide bush 221 of the comparative example.
  • the outer diameter of the guide post 220 is d1
  • the inner diameter of the hole of the guide bush 221 is D1
  • d1 ⁇ D1 the distance between the centers of the two guide posts 220 and 220
  • L1 the distance between the centers of the holes of the two guide bushes 221 is L1, which is equal.
  • FIG. 13B is a diagram showing a distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43 shown in another embodiment of the second embodiment.
  • the outer diameter of the guide posts 21 and 21 is d1, and the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 ⁇ D1.
  • the distance between the centers of the two guide posts 21 and 21 is L2, and the distance between the centers of the holes of the two guide bushes 43 and 43 is L1, and L1 ⁇ L2. Since the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
  • FIG. 13 (c) is a diagram showing the distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43, showing a modification of another embodiment of the second embodiment.
  • the outer diameter of the guide posts 21 and 21 is d1
  • the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 ⁇ D1.
  • the distance between the centers of the two guide posts 21 and 21 is L3, and the distance between the centers of the holes of the two guide bushes 43 and 43 is L1, and L3 ⁇ L1. Since the innermost distance between the guide posts 21 and 21 is smaller than the innermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
  • an eccentric bush 82 is provided at the proximal end portion 81 of the guide post 21 so as to be eccentric so that the guide posts 21 come closer to each other by being biased by the guide bush 43 (FIG. 12).
  • the center of the eccentric bush 82 before insertion of the guide post 21 into the guide bush 43 is a center line 83
  • the center of the eccentric bush 82 after insertion of the guide post 21 is a center line 84.
  • FIG. 15 is an enlarged view around the guide bush 43, and the urging means 90 is provided on a part of the inner peripheral surface 44 of the hole of the guide bush 43.
  • the urging means 90 includes a notch 91 provided in the guide bush 43, a pressing part 92 that is movably provided in the notch 91 and moves in the radial direction of the hole of the guide bush 43, and a jig body.
  • 41 includes a bolt 93 that presses the pressing portion 92, and a receiving member 94 that is provided in the notch portion 91 so as to face the bolt 93 and receives the pressing portion 92.
  • the operation of the machine tool according to another aspect of the second embodiment described above will be described next.
  • the pressing portion 92 moves in the radial direction of the hole of the guide bush 43.
  • the guide post 21 is urged by the pressing portion 92 with a force F4.
  • the receiving member 94 is an elastic body.
  • FIG. 16A is a diagram showing the distance relationship between the guide post 220 and the hole of the guide bush 221 of the comparative example.
  • the outer diameter of the guide post 220 is d1
  • the inner diameter of the hole of the guide bush 221 is D1
  • d1 ⁇ D1 the distance between the centers of the two guide posts 220 and 220
  • L1 the distance between the centers of the holes of the two guide bushes 221 is L1, which is equal.
  • FIG. 16B is a diagram showing a distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43 shown in still another embodiment of the second embodiment.
  • the outer diameter of the guide posts 21 and 21 is d1
  • the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 ⁇ D1.
  • the distance between the centers of the two guide posts 21 and 21 is L1
  • the distance between the centers of the holes of the two guide bushes 43 and 43 is L4, and L4 ⁇ L1. Since the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
  • FIG. 16 (c) is a diagram showing a distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43, which shows a modification in yet another aspect of the second embodiment.
  • the outer diameter of the guide posts 21 and 21 is d1
  • the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 ⁇ D1.
  • the distance between the centers of the two guide posts 21 and 21 is L1
  • the distance between the centers of the holes of the two guide bushes 43 and 43 is L5, and L1 ⁇ L5. Since the innermost distance between the guide posts 21 and 21 is smaller than the innermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
  • the machining head 20 includes a machining head main body 23, a spindle 25 that is provided below the machining head main body 23 and holds a tool 24, and a gear box 100.
  • the workpiece conveying jig 40 includes a machining power source 101 that is provided in the jig body 41 and drives the machining head 20, a spline shaft 102 that extends upward from the machining power source 101 and rotates, and an upper end of the spline shaft 102. And a connecting portion 110 connected to the gear box 100 and an elastic member 103 provided so as to surround the spline shaft 102 in the machining power source 101 and biasing the connecting portion 110 upward.
  • the gear box 100 includes a case portion 104, a driven gear 106 provided on the case portion 104 and rotatably provided via a driven shaft 105, and a bearing portion 107 provided on an upper portion of the case portion 104 and receiving a connection portion 110. Consists of.
  • the connecting portion 110 includes a drive gear 111 that meshes with a driven gear 106 that is movably provided along the spline shaft 102, a lower thrust bearing 112 that is provided below the drive gear 111, and a drive gear.
  • the clip member 113 is provided at 111 and holds the lower thrust bearing 112, and the upper thrust bearing 114 is provided above the drive gear 111.
  • a recess 115 is provided in the lower thrust bearing 112, and the elastic member 103 contacts the recess 115.
  • the drive gear 111 is biased upward by the elastic member 103.
  • the spline shaft 102 is inserted through the receiving portion 107.
  • the upper thrust bearing 114 is in contact with the cradle 108.
  • a spline portion 116 is provided on the outer periphery of the spline shaft 102.
  • the drive gear 111 is provided with a spline groove 117 that receives the spline portion 116.
  • the drive gear 111 rotates integrally with the spline shaft 102, but can move along the axial direction of the spline shaft 102.
  • the connecting portion 110 is also raised as shown by the arrow (16).
  • the guide post 21 is inserted into the guide bush 43, and the workpiece conveying jig 40 is positioned on the machining head 20.
  • the connecting portion 110 is connected to the gear box 100 and the driven gear 106 is engaged with the driving gear 111.
  • the spline shaft 102 passes through the case portion 104, and the drive gear 111 is kept engaged with the driven gear 106.
  • the power of the machining power source 101 is transmitted to the machining head 20, and the workpiece 15 is machined by the machining head 20.
  • a workpiece conveying jig 40 that is slidably provided on the gantry 14 and conveys the workpiece 15, and a workpiece that is fixed to the gantry 14 and attached to the workpiece conveying jig 40.
  • a power source 32 that moves the workpiece conveyance jig 40 to a position facing the machining head 20, and a portion to be processed of the workpiece 15 provided on the workpiece conveyance jig 40 to the machining head 20.
  • a workpiece moving mechanism 50 that processes the workpieces close to each other.
  • the present invention does not require a complicated index mechanism, and the structure of the apparatus is simple and the cost of the entire apparatus can be reduced.
  • the workpiece moving mechanism 50 is provided in one workpiece conveyance jig 40, so The structure can be simplified and the cost of the entire apparatus can be reduced. Furthermore, if a plurality of heavy machining heads are replaced with an exchange mechanism, the energy consumption increases. However, in the present invention, since only the workpiece conveying jig 40 is moved, the energy consumption can be suppressed and the running cost can be suppressed. .
  • a tool 24 that is mounted downward on the machining head 20 to machine the workpiece 15, a guide post 21 that is provided on either the workpiece conveying jig 40 or the machining head 20 and extends in the vertical direction, A guide bush 43 provided on either the workpiece conveying jig 40 or the processing head 20 and through which the guide post 21 is inserted is provided.
  • the workpiece conveying jig 40 is raised, the workpiece conveying jig 40 is moved to the machining head 20. 40 is connected to be movable up and down, and the workpiece 15 attached to the workpiece conveying jig 40 is processed by the tool 24.
  • the workpiece conveyance jig 40 is suspended from the gantry 14 via a slide mechanism 30 that slides the gantry 14, and the workpiece movement mechanism 50 includes the slide mechanism 30, the workpiece conveyance jig 40, and the like.
  • the workpiece conveying jig 40 is lifted when the advance / retreat rod 52 is retracted.
  • This configuration allows the workpiece moving mechanism 50 to have a simple structure since the workpiece moving mechanism 50 is simply connected to the slide mechanism 30 with the advance / retreat rod 52.
  • the power source 32 is provided in the workpiece conveyance jig 40 and causes the workpiece conveyance jig 40 to self-run.
  • the structure of the apparatus can be simplified and the cost of the entire apparatus can be further reduced as compared with the case where the power source 32 is provided for each of the plurality of machining heads 20. be able to.
  • the guide post 21 and the guide bush 43 constitute a positioning mechanism 22 that positions the machining head 20 and the workpiece conveying jig 40, and the machining head 20 has a plurality of tools 24 each holding a plurality of tools 24.
  • the number of tools 24 required for at least two machining operations performed by raising the workpiece conveying jig 40 to which the workpiece 15 is attached is provided on the machining head 20 via the spindle 25. ing.
  • the processing head 20 is provided with the tool 24 necessary for processing at least twice, so that the workpiece transport jig 40 is moved after the processing head 20 performs the first processing on the workpiece 15,
  • the workpiece 15 can be subjected to the second machining by the same machining head 20.
  • the number of steps that can be performed by one machining head 20 can be increased to a plurality, and space saving of the machine tool can be achieved.
  • the machine tool 10 of the present invention has a configuration in which the workpiece transfer device 40 is moved up and down by the workpiece moving mechanism 50.
  • the present invention is not limited to this, and if the workpiece 15 is positioned on the machining head, the workpiece 15 is moved. However, there is no problem even if the workpiece 15 is machined by the machining head 20 by moving up and down only.
  • the slide mechanism 30 is configured by the pinion 36 and the rack 17.
  • the configuration is not limited to this, and other configurations such as a configuration in which the wheels 37 and 39 are mounted on the rail 16 are possible as long as the movement of the workpiece conveying jig 40 can be controlled. There is no problem.
  • the machine tool of the present invention is suitable for a machine tool that processes a workpiece by bringing a workpiece transfer jig closer to the processing head.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
  • Drilling And Boring (AREA)
  • Feeding Of Workpieces (AREA)

Abstract

A working machine (10), provided with: a platform (11); a support column (12); a beam (13); a stand (14) provided below the beam (13); a machining head (20) for machining a work (15), the machining head (20) being provided to the stand (14); a guide post (21) extending downward from the machining head (20); a rail (16) and a rack (17) provided along the stand (14); a slide mechanism (30) slidably provided to the rail (16) and the rack (17); and a work transportation jig (40) for transporting the work (15), the work transportation jig (40) being suspended from the slide mechanism (30).

Description

工作機械Machine Tools
　本発明は、ワークを搬送するワーク搬送治具と、ワークを加工する加工ヘッドとからなる工作機械に関する。 The present invention relates to a machine tool including a workpiece conveyance jig for conveying a workpiece and a machining head for machining the workpiece.
　工作機械には、一つの加工ヘッドに複数の工具を持つ多軸加工ヘッドを備えるものが知られている（例えば、特許文献１参照。）。 A machine tool having a multi-axis machining head having a plurality of tools in one machining head is known (for example, see Patent Document 1).
　図２１は従来技術に係る工作機械の基本原理を説明する図であり、工作機械２００は、加工ユニット２０１と、搬送ライン２０２上のクランプユニット２０３とからなる。加工ユニット２０１では、回転インデックス２０４の６個のアーム２０５の先端にそれぞれ多軸加工ヘッド２０６が設けられる。 FIG. 21 is a diagram for explaining the basic principle of a machine tool according to the prior art, and the machine tool 200 includes a processing unit 201 and a clamp unit 203 on a transfer line 202. In the machining unit 201, multi-axis machining heads 206 are provided at the tips of the six arms 205 of the rotation index 204, respectively.
　クランプユニット２０３では、ターンテーブル２０７に治具２０８を介してワーク２０９が取付けられ、ワーク２０９に多軸加工ヘッド２０６を近づけることでワーク２０９に加工が施される。加工の際、回転インデックス２０４を回転させ、異なる多軸加工ヘッド２０６を使用することにより、ワーク２０９に複数工程の加工を施すことができる。 In the clamp unit 203, the work 209 is attached to the turntable 207 via the jig 208, and the work 209 is processed by bringing the multi-axis processing head 206 close to the work 209. In the machining, the workpiece 209 can be machined in a plurality of steps by rotating the rotation index 204 and using different multi-axis machining heads 206.
　しかし、回転インデックス２０４は、６０°毎に起動、停止が繰り返される。特に停止精度は、加工精度に影響するために、十分に高める必要がある。しかし、回転インデックス２０４は重量物であり、慣性モーメントが大きいために停止位置がずれ易い。停止精度を高めるためには、高度なフィードバック制御が不可欠となり、装置全体のコストが高くなる。また、多軸加工ヘッド２０６は重いため、複数の多軸加工ヘッドを回転インデックスで回転させると、消費エネルギーが増大し、ランニングコストが高くなる。すなわち、装置の構造が簡単で装置全体のコストを低くすることができ、且つ、ランニングコストも抑えることができる工作機械が求められている。 However, the rotation index 204 is repeatedly started and stopped every 60 °. In particular, the stopping accuracy needs to be sufficiently increased in order to affect the processing accuracy. However, the rotation index 204 is heavy and has a large moment of inertia, so that the stop position tends to shift. In order to increase the stopping accuracy, advanced feedback control is indispensable, which increases the cost of the entire apparatus. In addition, since the multi-axis machining head 206 is heavy, if a plurality of multi-axis machining heads are rotated with a rotation index, energy consumption increases and running cost increases. That is, there is a need for a machine tool that can simplify the structure of the apparatus, reduce the cost of the entire apparatus, and reduce the running cost.
特開２０１１－２４０４６６公報JP 2011-240466 A
　本発明は、装置の構造が簡単で装置全体のコストを低くすることができ、且つ、ランニングコストも抑えることができる工作機械を提供することを課題とする。 An object of the present invention is to provide a machine tool that has a simple structure of the apparatus, can reduce the cost of the entire apparatus, and can reduce running costs.
　請求項１に係る発明は、架台にスライド可能に設けられワークを搬送するワーク搬送治具と、前記架台に固定され前記ワーク搬送治具に取付けられた前記ワークを加工する加工ヘッドとからなる工作機械において、前記加工ヘッドに対向する位置に前記ワーク搬送治具を移動させる動力源と、前記ワーク搬送治具に設けられ前記ワークの被加工部を加工ヘッドに近づけて加工する被加工部移動機構とを備えている工作機械が提供される。 According to a first aspect of the present invention, there is provided a machine tool comprising: a workpiece conveying jig which is slidably provided on a gantry and conveys a workpiece; and a machining head which is fixed to the gantry and is attached to the workpiece conveying jig. In the machine, a power source for moving the workpiece conveying jig to a position facing the machining head, and a workpiece moving mechanism provided in the workpiece conveying jig for machining the workpiece portion of the workpiece close to the machining head A machine tool is provided.
　請求項２に係る発明では、好ましくは、加工ヘッドに下向きに装着されワークを加工する工具と、ワーク搬送治具または加工ヘッドのうちどちらか一方に設けられ上下方向に延びるガイドポストと、ワーク搬送治具または加工ヘッドのうちどちらか他方に設けられガイドポストが挿通されるガイドブッシュとを備え、ワーク搬送治具が上昇することにより、加工ヘッドにワーク搬送治具が昇降自在に連結され、ワーク搬送治具に取付けられたワークが工具により加工される。 In the invention according to claim 2, preferably, a tool that is mounted downward on the processing head and processes the workpiece, a guide post that is provided on either the workpiece transfer jig or the processing head and extends in the vertical direction, and the workpiece transfer A guide bush that is provided on either the jig or the machining head and through which the guide post is inserted, and the workpiece conveyance jig is raised so that the workpiece conveyance jig is connected to the machining head so that the workpiece can be raised and lowered. The workpiece attached to the conveying jig is machined with a tool.
　請求項３に係る発明では、好ましくは、ワーク搬送治具は、架台をスライドするスライド機構を介して架台に吊り下げられ、被加工部移動機構は、スライド機構とワーク搬送治具とに上下に延び進退する進退ロッドを介して連結され、進退ロッドが退くことによりワーク搬送治具が上昇する。 In the invention according to claim 3, preferably, the workpiece conveyance jig is suspended from the gantry via a slide mechanism that slides the gantry, and the workpiece moving mechanism is vertically moved between the slide mechanism and the workpiece conveyance jig. The workpiece conveying jig is lifted when the rod is extended and retracted, and the rod is retracted.
　請求項４に係る発明では、好ましくは、動力源は、ワーク搬送治具に設けられ、ワーク搬送治具を自走させる。 In the invention according to claim 4, preferably, the power source is provided in the workpiece conveyance jig and causes the workpiece conveyance jig to self-propell.
　請求項５に係る発明では、ガイドポストおよびガイドブッシュにより、加工ヘッドとワーク搬送治具とを位置決めする位置決め機構が構成され、加工ヘッドは、複数の工具をそれぞれ保持する複数のスピンドルを備え、ワークが取付けられたワーク搬送治具が上昇することにより施される少なくとも２回分の加工に必要な数の工具が、スピンドルを介して加工ヘッドに設けられている。 In the invention according to claim 5, the guide post and the guide bush constitute a positioning mechanism for positioning the machining head and the workpiece conveying jig, and the machining head includes a plurality of spindles that respectively hold a plurality of tools, The machining head is provided with a number of tools necessary for at least two machining operations performed by raising the workpiece conveying jig to which the machining head is attached via the spindle.
　請求項１に係る発明では、加工ヘッドに対向する位置にワーク搬送治具を移動させる動力源と、ワーク搬送治具に設けられワークの被加工部を加工ヘッドに近づけて加工する被加工部移動機構とからなる。
　動力源で加工ヘッドに対向する位置にワーク搬送治具を移動させるとともに、被加工部移動機構をワーク搬送治具に設けたので、複数の加工ヘッドをインデックス機構で切換える工作機械に比較し、本発明では複雑なインデックス機構を必要とせず、装置の構造が簡単で装置全体のコストの低減を図ることができる。 According to the first aspect of the present invention, a power source for moving the workpiece conveyance jig to a position facing the machining head, and a workpiece movement that is provided on the workpiece conveyance jig and moves the workpiece portion closer to the machining head. It consists of a mechanism.
The workpiece transfer jig is moved to a position facing the machining head with a power source, and the workpiece transfer mechanism is provided in the workpiece conveyance jig. Compared to a machine tool that switches multiple machining heads with an index mechanism, this In the invention, a complicated index mechanism is not required, the structure of the apparatus is simple, and the cost of the entire apparatus can be reduced.
　加えて、複数の加工ヘッドのそれぞれに被加工部移動機構を設けた場合に比較しても、本発明では一つのワーク搬送治具に被加工部移動機構を設けるので、装置の構造を簡単にでき、装置全体のコストを低くすることができる。
　さらに、仮に複数の重い加工ヘッドを交換機構で交換すると消費エネルギーが増大するが、本発明ではワーク搬送治具を移動させるだけであるので、消費エネルギーを抑えられ、ランニングコストを抑えることができる。 In addition, compared with the case where the workpiece moving mechanism is provided for each of the plurality of machining heads, the present invention provides the workpiece moving mechanism for one workpiece conveying jig, so that the structure of the apparatus can be simplified. And the cost of the entire apparatus can be reduced.
Furthermore, if a plurality of heavy machining heads are exchanged with an exchange mechanism, the energy consumption increases. However, in the present invention, since only the workpiece conveying jig is moved, the energy consumption can be reduced and the running cost can be reduced.
　請求項２に係る発明では、ワーク搬送治具または加工ヘッドのうちどちらか一方に設けられ上下方向に延びるガイドポストと、ワーク搬送治具または加工ヘッドのうちどちらか他方に設けられガイドポストが挿通されるガイドブッシュとを備える。
　ワーク搬送治具が上昇することにより、ガイドポストがガイドブッシュに挿入されるので、加工ヘッドにワーク搬送治具が位置決めできる。結果、ワークの加工精度の向上を図ることができる。 In the invention which concerns on Claim 2, the guide post provided in either one of a workpiece conveyance jig | tool or a machining head and the guide post provided in either one of a workpiece conveyance jig | tool or a machining head is inserted. A guide bush.
Since the guide post is inserted into the guide bush by raising the workpiece conveyance jig, the workpiece conveyance jig can be positioned on the machining head. As a result, the machining accuracy of the workpiece can be improved.
　請求項３に係る発明では、ワーク搬送治具は、架台をスライドするスライド機構を介して架台に吊り下げられ、被加工部移動機構は、スライド機構とワーク搬送治具とに上下に延び進退する進退ロッドを介して連結される。
　被加工部移動機構はスライド機構に進退ロッドを連結しただけであるので、被加工部移動機構を簡易な構造にできる。 In the invention which concerns on Claim 3, a workpiece conveyance jig | tool is suspended by the mount via the slide mechanism which slides a mount, and a to-be-processed part moving mechanism extends up and down to a slide mechanism and a workpiece transfer jig, and advances / retreats. It is connected via an advance / retreat rod.
Since the work part moving mechanism is simply the advance / retreat rod connected to the slide mechanism, the work part moving mechanism can have a simple structure.
　請求項４に係る発明では、動力源は、ワーク搬送治具に設けられ、ワーク搬送治具を自走させる。
　動力源をワーク搬送治具に設けたので、複数の加工ヘッドのそれぞれに動力源を設けた場合に比較し、装置の構造を簡単にでき、より一層装置全体のコストを低くすることができる。 In the invention which concerns on Claim 4, a power source is provided in a workpiece conveyance jig | tool, and makes a workpiece conveyance jig self-propelled.
Since the power source is provided in the workpiece conveying jig, the structure of the apparatus can be simplified and the cost of the entire apparatus can be further reduced as compared with the case where the power source is provided for each of the plurality of machining heads.
　請求項５に係る発明では、ワーク搬送治具が上昇することにより施される少なくとも２回分の加工に必要な数の工具が、スピンドルを介して加工ヘッドに設けられている。
　加工ヘッドに少なくとも２回分の加工に必要な工具が設けられているので、加工ヘッドによってワークに１回目の加工を施した後、ワーク搬送治具を移動させ、同じ加工ヘッドによりワークに２回目の加工を施すことができる。結果、一つの加工ヘッドで実施できる工程を複数に増やすことができ、工作機械の省スペース化を図ることができる。 In the invention which concerns on Claim 5, the number of tools required for the process of at least 2 times given when a workpiece conveyance jig | tool raises is provided in the process head via the spindle.
Since the processing head is provided with tools necessary for at least two processings, after the first processing is performed on the workpiece by the processing head, the workpiece conveying jig is moved, and the second processing is performed on the workpiece by the same processing head. Processing can be performed. As a result, the number of processes that can be performed by one machining head can be increased to a plurality, and the space for the machine tool can be saved.
実施例１に係る工作機械の正面図である。1 is a front view of a machine tool according to a first embodiment. 図１の２－２線に沿った断面図である。FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 図２の３－３線に沿った断面図である。FIG. 3 is a cross-sectional view taken along line 3-3 in FIG. 実施例１に係る工作機械の平面図である。1 is a plan view of a machine tool according to Embodiment 1. FIG. ワーク搬送治具の移動工程を説明する図である。It is a figure explaining the movement process of a workpiece conveyance jig. 加工工程を説明する図である。It is a figure explaining a processing process. １つの加工ヘッドで２つのワークを一度に加工する場合を説明する図である。It is a figure explaining the case where two workpieces are processed at once by one processing head. １つの加工ヘッドで１つのワークに２回加工する場合を説明する図である。It is a figure explaining the case where it processes twice on one workpiece | work with one process head. 実施例２に係る工作機械の断面図である。6 is a cross-sectional view of a machine tool according to Embodiment 2. FIG. 図９の１０－１０線に沿った断面図である。FIG. 10 is a cross-sectional view taken along line 10-10 in FIG. 実施例２に係る工作機械の作用図である。FIG. 10 is an operation diagram of the machine tool according to the second embodiment. 実施例２に係る工作機械の別態様を説明する図である。It is a figure explaining the other aspect of the machine tool which concerns on Example 2. FIG. 実施例２の別態様のガイドポストとガイドブッシュの位置関係を説明する図である。It is a figure explaining the positional relationship of the guide post of another aspect of Example 2, and a guide bush. 偏心ブッシュを説明する図である。It is a figure explaining an eccentric bush. 実施例２に係る工作機械の更なる別態様を説明する図である。It is a figure explaining the further another aspect of the machine tool which concerns on Example 2. FIG. 実施例２の更なる別態様のガイドポストとガイドブッシュの位置関係を説明する図である。It is a figure explaining the positional relationship of the guide post of another another aspect of Example 2, and a guide bush. 実施例３に係る工作機械の断面図である。6 is a cross-sectional view of a machine tool according to Embodiment 3. FIG. 図１７の領域１８の拡大図である。FIG. 18 is an enlarged view of a region 18 in FIG. 17. 図１７の１９線に沿った断面図である。FIG. 18 is a cross-sectional view taken along line 19 in FIG. 17. 実施例３に係る工作機械の作用図である。FIG. 10 is an operation diagram of the machine tool according to the third embodiment. 従来技術に係る工作機械の基本原理を説明する図である。It is a figure explaining the basic principle of the machine tool which concerns on a prior art.
　以下、本発明の好ましい幾つかの実施例について、添付した図面に基づいて詳細に説明する。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
　図１に示すように、実施例１による工作機械１０は、基台１１と、この基台１１に立てられた支柱１２と、この支柱１２の上端に設けられた梁１３と、この梁１３の下方に設けられた架台１４と、この架台１４に設けられワーク１５を加工する加工ヘッド２０と、この加工ヘッド２０から下方に延びるガイドポスト２１と、架台１４に沿って設けられるレール１６及びラック１７と、これらのレール１６及びラック１７にスライド可能に設けられるスライド機構３０と、このスライド機構３０に吊り下げられワーク１５を搬送するワーク搬送治具４０と、加工ヘッド２０の下方に設けられ切りくず及び切削液を回収する回収部１８とからなる。 As shown in FIG. 1, the machine tool 10 according to the first embodiment includes a base 11, a support 12 standing on the support 11, a beam 13 provided on the upper end of the support 12, and the beam 13. A gantry 14 provided below, a machining head 20 provided on the gantry 14 for machining the workpiece 15, a guide post 21 extending downward from the machining head 20, a rail 16 and a rack 17 provided along the gantry 14 A slide mechanism 30 slidably provided on the rails 16 and the rack 17, a workpiece transfer jig 40 that is suspended by the slide mechanism 30 and transfers the workpiece 15, and a chip provided below the processing head 20. And a recovery unit 18 for recovering the cutting fluid.
　また、ワーク搬送治具４０に一体的にスライド機構３０が設けられる。スライド機構３０は、スライド本体部３１と、このスライド本体部３１に設けられワーク搬送治具４０を自走させる動力源３２と、スライド本体部３１から吊り下げられワーク搬送治具４０を昇降可能に支持する支持ロッド３３とを備える。 Also, the slide mechanism 30 is provided integrally with the work conveying jig 40. The slide mechanism 30 includes a slide main body 31, a power source 32 provided on the slide main body 31 for self-propelling the work conveyance jig 40, and suspended from the slide main body 31 so that the work conveyance jig 40 can be moved up and down. And a support rod 33 for supporting.
　ワーク搬送治具４０は、治具本体部４１と、この治具本体部４１に設けられ支持ロッド３３が挿通される支持ブッシュ４２と、治具本体部４１に設けられガイドポスト２１が挿通されるガイドブッシュ４３と、治具本体部４１に設けられワーク１５の被加工部を加工ヘッドに近づける被加工部移動機構５０とを備える。支持ロッド３３の下端にストッパ片３４が設けられており、ストッパ片３４が治具本体部４１に当接することで、ワーク搬送治具４０の下方への移動が制限される。 The workpiece conveying jig 40 includes a jig main body 41, a support bush 42 provided in the jig main body 41 and through which the support rod 33 is inserted, and a guide post 21 provided in the jig main body 41 through which the guide post 21 is inserted. A guide bush 43 and a workpiece moving mechanism 50 that is provided in the jig main body 41 and moves the workpiece 15 of the workpiece 15 closer to the machining head. A stopper piece 34 is provided at the lower end of the support rod 33, and when the stopper piece 34 abuts against the jig body 41, the downward movement of the workpiece conveying jig 40 is restricted.
　次に被加工部移動機構及び位置決め機構について詳しく説明する。
　図２に示すように、被加工部移動機構５０は、治具本体部４１に設けられるシリンダ５１と、このシリンダ５１から延びスライド機構３０に接続される進退ロッド５２とからなる。シリンダ５１を稼働させ進退ロッド５２を縮めることで、ワーク搬送治具４０が上昇する。ワーク１５が加工ヘッド２０に近づけられ、ワーク１５の被加工部が加工される。 Next, the workpiece moving mechanism and the positioning mechanism will be described in detail.
As shown in FIG. 2, the workpiece moving mechanism 50 includes a cylinder 51 provided in the jig main body 41 and an advancing / retracting rod 52 extending from the cylinder 51 and connected to the slide mechanism 30. By operating the cylinder 51 and contracting the advance / retreat rod 52, the workpiece transfer jig 40 is raised. The workpiece 15 is brought close to the machining head 20 and the part to be machined of the workpiece 15 is machined.
　加工ヘッド２０にワーク搬送治具４０を位置決めする位置決め機構２２は、加工ヘッド２０に設けられるガイドポスト２１と、ワーク搬送治具４０に設けられるガイドブッシュ４３とからなる。被加工部移動機構５０によりワーク搬送治具４０が上昇し、ガイドポスト２１がガイドブッシュ４３に挿通されることで、ワーク搬送治具４０が位置決めされる。 The positioning mechanism 22 for positioning the workpiece conveyance jig 40 on the machining head 20 includes a guide post 21 provided on the machining head 20 and a guide bush 43 provided on the workpiece conveyance jig 40. The workpiece transfer jig 40 is raised by the workpiece moving mechanism 50 and the guide post 21 is inserted into the guide bush 43, whereby the workpiece transfer jig 40 is positioned.
　また、加工ヘッド２０は、加工ヘッド本体部２３と、この加工ヘッド本体部２３の下部に設けられ工具２４を保持するスピンドル２５と、加工ヘッド本体部２３の上部に設けられスピンドルを駆動させる加工用動力源２６とからなる。加工ヘッド２０は、支柱１２、１２に掛け渡された梁１３に、固定部材２７により固定されている。 The machining head 20 includes a machining head main body 23, a spindle 25 that is provided below the machining head main body 23 and holds a tool 24, and a machining head that is provided above the machining head main body 23 and drives the spindle. A power source 26; The machining head 20 is fixed to the beam 13 spanned between the columns 12 and 12 by a fixing member 27.
　なお、実施例では、加工ヘッド２０にガイドポスト２１を設け、ワーク搬送治具４０にガイドブッシュ４３を設けたが、これに限定されず、ワーク搬送治具が上昇することにより、加工ヘッド２０にワーク搬送治具４０が連結されて位置決めされれば、加工ヘッド２０にガイドブッシュを設け、ワーク搬送治具４０にガイドポストを設ける構成であっても差し支えない。 In the embodiment, the guide post 21 is provided on the machining head 20 and the guide bush 43 is provided on the workpiece conveying jig 40. However, the present invention is not limited to this, and the machining head 20 is moved upward by raising the workpiece conveying jig. If the workpiece conveying jig 40 is connected and positioned, the processing head 20 may be provided with a guide bush and the workpiece conveying jig 40 may be provided with a guide post.
　次にスライド機構３０について詳しく説明する。
　図３に示すように、スライド機構３０は、スライド本体部３１と、このスライド本体部３１に第１の軸３５を介して回転自在に設けられラック１７に噛み合うピニオン３６と、第１の軸３５に設けられレール１６（図２）に載せられる第１の車輪３７（図２）と、スライド本体部３１にもうけられピニオン３６を駆動させる動力源３２と、スライド本体部３１に第２の軸３８を介して回転自在に設けられレール１６に載せられる第２の車輪３９とからなる。 Next, the slide mechanism 30 will be described in detail.
As shown in FIG. 3, the slide mechanism 30 includes a slide main body 31, a pinion 36 that is rotatably provided on the slide main body 31 via a first shaft 35 and meshes with the rack 17, and a first shaft 35. The first wheel 37 (FIG. 2) mounted on the rail 16 (FIG. 2), the power source 32 provided on the slide main body 31 for driving the pinion 36, and the second shaft 38 on the slide main body 31. And a second wheel 39 mounted on the rail 16 so as to be freely rotatable.
　動力源３２を駆動させ、ピンオン３６を任意の量だけ回転させることで、スライド機構３０を移動させることができる。 The slide mechanism 30 can be moved by driving the power source 32 and rotating the pin-on 36 by an arbitrary amount.
　次に平面図に基づいて加工ヘッドとワーク搬送治具の位置関係について説明する。
　図４に示すように、工作機械１０の図右側には、ワーク１５を投入するワーク投入部５３が設けられる。ワーク投入部５３の図左側に、続けて複数の加工ヘッド２０が配置されたワーク加工部５４が設けられる。ワーク搬送治具４０に、２個のワーク１５、１５が載せられており、ワーク搬送治具４０を図左に移動させ、各ワーク加工部５４で順次ワーク１５、１５に加工が施される。 Next, the positional relationship between the machining head and the workpiece conveying jig will be described based on a plan view.
As shown in FIG. 4, a workpiece loading unit 53 for loading the workpiece 15 is provided on the right side of the machine tool 10. On the left side of the workpiece input unit 53 in the figure, a workpiece processing unit 54 in which a plurality of processing heads 20 are arranged is provided. Two workpieces 15 and 15 are placed on the workpiece conveying jig 40. The workpiece conveying jig 40 is moved to the left in the figure, and the workpieces 15 and 15 are sequentially processed by the workpiece processing units 54.
　以上に述べた工作機械の作用を次に述べる。
　図５（ａ）に示すように、ワーク投入部５３で、ワーク１５を矢印（１）のようにワーク搬送治具４０にセットする。ワーク搬送治具４０を矢印（２）のように移動させる。 The operation of the machine tool described above will be described next.
As shown in FIG. 5A, the workpiece 15 is set on the workpiece conveyance jig 40 as indicated by an arrow (1) by the workpiece loading unit 53. The workpiece conveyance jig 40 is moved as shown by the arrow (2).
　図５（ｂ）に示すように、被加工部移動機構５０を稼働させ、ワーク搬送治具４０を矢印（３）のように上昇させる。 As shown in FIG. 5B, the workpiece moving mechanism 50 is operated, and the workpiece transfer jig 40 is raised as shown by the arrow (3).
　図６（ａ）に示すように、ワーク搬送治具４０が上昇すると、先ずガイドポスト２１がガイドブッシュ４３に挿通され、加工ヘッド２０にワーク搬送治具４０が位置決めされる。位置決めさたワーク搬送治具４０は、矢印（４）のようにさらに上昇される。 As shown in FIG. 6A, when the workpiece conveyance jig 40 is raised, the guide post 21 is first inserted into the guide bush 43, and the workpiece conveyance jig 40 is positioned on the machining head 20. The positioned workpiece transfer jig 40 is further raised as indicated by an arrow (4).
　図６（ｂ）に示すように、ワーク搬送治具４０が上昇すると、工具２４の先端がワーク１５に接触する。ワーク搬送治具４０を矢印（５）のようにさらに上昇させると、工具２４によりワーク１５が加工される。 As shown in FIG. 6B, when the workpiece conveying jig 40 is raised, the tip of the tool 24 comes into contact with the workpiece 15. When the workpiece conveying jig 40 is further raised as indicated by the arrow (5), the workpiece 15 is processed by the tool 24.
　図６（ｃ）に示すように、ワーク搬送治具４０を矢印（６）のように下降させることで１回の加工が終了となる。 As shown in FIG. 6 (c), when the work conveying jig 40 is lowered as shown by the arrow (6), one machining is completed.
　次にワークの配置の違いによる加工方法を平面図に基づいて説明する。
　図７（ａ）に示すように、２個のワーク１５は、ワーク搬送治具４０の進行方向に対して左右に配置されている。ワーク搬送治具４０を矢印（７）のように移動させる。 Next, a processing method based on a difference in work arrangement will be described based on a plan view.
As shown in FIG. 7A, the two workpieces 15 are arranged on the left and right with respect to the traveling direction of the workpiece conveyance jig 40. The work conveyance jig 40 is moved as shown by an arrow (7).
　図７（ｂ）に示すように、２個のワーク１５は、全体が１箇所目の加工ヘッド２０の下に入れられ、一度に２個のワーク１５に加工が施される。加工後、ワーク搬送治具４０を矢印（８）のように移動させる。 As shown in FIG. 7 (b), the entire two workpieces 15 are placed under the first machining head 20, and the two workpieces 15 are machined at a time. After the processing, the work conveying jig 40 is moved as indicated by an arrow (8).
　図７（ｃ）に示すように、２個のワーク１５は、全体が２箇所目の加工ヘッド２０の下に入れられ、一度に２個のワーク１５に次の加工が施される。加工後、ワーク搬送治具４０を矢印（９）のように移動させる。結果、一度に２個のワークに対して加工を施すことができる。 As shown in FIG. 7C, the entire two workpieces 15 are placed under the second machining head 20, and the next machining is performed on the two workpieces 15 at a time. After the processing, the work conveying jig 40 is moved as indicated by an arrow (9). As a result, two workpieces can be processed at a time.
　次に図７と異なる加工方法を平面図に基づいて説明する。
　図８（ａ）に示すように、２個のワーク１５は、ワーク搬送治具４０の進行方向に対して前後に配置されている。ワーク搬送治具４０を矢印（１０）のように移動させる。 Next, a processing method different from FIG. 7 will be described based on a plan view.
As shown in FIG. 8A, the two workpieces 15 are arranged forward and backward with respect to the traveling direction of the workpiece conveyance jig 40. The work conveying jig 40 is moved as indicated by an arrow (10).
　図８（ｂ）に示すように、２個のワーク１５のうち、進行方向前側のワーク１５のみを加工ヘッド２０の下に移動させる。前側のワーク１５にのみ加工を施す。加工後、ワーク搬送治具４０を矢印（１１）のように移動させる。 As shown in FIG. 8B, only the workpiece 15 on the front side in the traveling direction among the two workpieces 15 is moved below the machining head 20. Only the front workpiece 15 is processed. After the processing, the workpiece conveying jig 40 is moved as indicated by an arrow (11).
　図８（ｃ）に示すように、２個のワーク１５は、全体が１箇所目の加工ヘッド２０の下に移動される。すなわち、前側のワーク１５は、１箇所目の加工ヘッド２０の前側の工具２４の下に移動される。後側のワーク１５は、１箇所目の加工ヘッドの後側の工具２４の下に移動される。前側の工具２４と後側の工具２４とで、異なる工具を使用し、または、異なる位置に配置することで、１箇所の加工ヘッド２０で２種類の加工を施すことができる。加工後、ワーク搬送治具４０を矢印（１２）のように移動させる。 As shown in FIG. 8C, the two workpieces 15 are moved under the first machining head 20 as a whole. That is, the front workpiece 15 is moved under the front tool 24 of the first machining head 20. The rear workpiece 15 is moved under the tool 24 on the rear side of the first machining head. By using different tools for the front tool 24 and the rear tool 24 or arranging them at different positions, two types of processing can be performed with one processing head 20. After the processing, the workpiece conveying jig 40 is moved as indicated by an arrow (12).
　図８（ｄ）に示すように、前側のワーク１５は、１箇所目の加工ヘッド２０から外れる。後側のワーク１５は、１箇所目の加工ヘッド２０の前側の工具２４の下に移動される。結果、後側のワーク１５にも１箇所目の加工ヘッド２０で異なる種類の加工を施すことができる。加工後、ワーク搬送治具４０を矢印（１３）のように移動させ、２箇所目の加工ヘッド２０での加工が施される。 As shown in FIG. 8D, the front work 15 is detached from the first machining head 20. The rear workpiece 15 is moved under the front tool 24 of the first machining head 20. As a result, different types of machining can be performed on the rear workpiece 15 with the first machining head 20. After the processing, the work conveying jig 40 is moved as indicated by an arrow (13), and processing by the second processing head 20 is performed.
　次に、本発明の実施例２を図面に基づいて説明する。なお、図２に示した構成と同一構成については同一符号を付け、詳細説明は省略する。
　図９に示すように、工作機械１０は、ガイドポスト２１をガイドブッシュ４３の穴の内周面４４に付勢する付勢手段６０を備える。 Next, a second embodiment of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached about the same structure as the structure shown in FIG. 2, and detailed description is abbreviate | omitted.
As shown in FIG. 9, the machine tool 10 includes a biasing means 60 that biases the guide post 21 to the inner peripheral surface 44 of the hole of the guide bush 43.
　付勢手段６０は、加工ヘッド２０を架台１４に対して傾斜させる傾斜機構６１（図１０参照）を有する。傾斜機構６１は、加工ヘッド本体部２３の下部に設けられ加工ヘッド２０を回転自在に支持する傾斜軸６２と、架台１４に設けられ傾斜軸６２を支持する軸受６３とからなる。加工ヘッド２０は、架台１４に設けられた貫通穴６４に配置される。 The urging means 60 has an inclination mechanism 61 (see FIG. 10) for inclining the machining head 20 with respect to the gantry 14. The tilt mechanism 61 includes a tilt shaft 62 that is provided below the processing head main body 23 and rotatably supports the processing head 20, and a bearing 63 that is provided on the gantry 14 and supports the tilt shaft 62. The processing head 20 is disposed in a through hole 64 provided in the gantry 14.
　図１０に示すように、貫通穴６４の幅は、加工ヘッド本体部２３下部の幅よりも大きい。貫通穴６４と加工ヘッド本体部２３との間には隙間６５が設けられる。加工ヘッド２０は、傾斜軸６２を中心に傾斜する。加工ヘッド本体部２３の側部が、貫通穴６４の内壁に当接することで、加工ヘッド２０の傾斜が規制される。 As shown in FIG. 10, the width of the through hole 64 is larger than the width of the lower part of the processing head main body 23. A gap 65 is provided between the through hole 64 and the processing head main body 23. The machining head 20 is tilted about the tilt axis 62. The side of the processing head main body portion 23 abuts against the inner wall of the through hole 64, whereby the inclination of the processing head 20 is regulated.
　符号６６は鉛直線であり、符号６７はガイドポスト２１に平行な平行線である。鉛直線６６と平行線６７との傾斜角はＡである。すなわち、加工ヘッド２０の鉛直線６６に対する傾斜角はＡである。なお、平行線６７、ガイドポスト２１、工具２４の軸は平行である。 Reference numeral 66 is a vertical line, and reference numeral 67 is a parallel line parallel to the guide post 21. The inclination angle between the vertical line 66 and the parallel line 67 is A. That is, the inclination angle of the machining head 20 with respect to the vertical line 66 is A. Note that the axes of the parallel lines 67, the guide posts 21, and the tool 24 are parallel.
　また、架台１４に凹部７１が設けられ、この凹部７１に弾性体７２が設けられる。加工ヘッド本体部２３にアーム部７３が設けられ、アーム部７３が弾性体７２に付勢される。結果、ガイドポスト２１は傾斜する方向へ付勢される。 Further, a recess 71 is provided in the gantry 14, and an elastic body 72 is provided in the recess 71. An arm 73 is provided in the processing head main body 23, and the arm 73 is biased by the elastic body 72. As a result, the guide post 21 is biased in a tilting direction.
　以上に述べた実施例２に係る工作機械の作用を次に述べる。
　図１１（ａ）に示すように、ガイドポスト２１は傾斜角Ａで傾斜している。ワーク搬送治具４０を矢印（１４）のように上昇させる。ガイドポスト２１先端のテーパ部２８がガイドブッシュ４３に挿通され、ガイドポスト２１は矢印（１５）のように移動される。なお、アーム部７３は、弾性体７２により力Ｆ１で付勢される。 Next, the operation of the machine tool according to the second embodiment described above will be described.
As shown in FIG. 11A, the guide post 21 is inclined at an inclination angle A. The workpiece conveyance jig 40 is raised as shown by an arrow (14). The tapered portion 28 at the tip of the guide post 21 is inserted into the guide bush 43, and the guide post 21 is moved as indicated by an arrow (15). The arm portion 73 is biased by the elastic body 72 with a force F1.
　図１１（ｂ）に示すように、ガイドポスト２１はガイドブッシュ４３に挿通される。ガイドポスト２１は、ガイドブッシュ４３の内周面４４に力Ｆ２で付勢される。この状態で、ワーク搬送治具４０を上昇させ、加工ヘッド２０によりワークを加工すると、加工によるビビリ(chatter)の低減を図ることができる。 11B, the guide post 21 is inserted into the guide bush 43. As shown in FIG. The guide post 21 is urged against the inner peripheral surface 44 of the guide bush 43 by a force F2. In this state, when the workpiece conveying jig 40 is raised and the workpiece is machined by the machining head 20, chatter due to machining can be reduced.
　次に実施例２の別態様について説明する。なお、図１に示した構成と同一構成については同一符号を付け、詳細説明は省略する。
　図１２（ａ）に示すように、付勢手段８０は、複数のガイドポスト２１、２１と、これらの複数のガイドポスト２１、２１が挿通されるガイドブッシュ４３、４３とからなる。２つのガイドブッシュ４３、４３の中心間距離はＬ１である。２つのガイドポスト２１、２１の中心間距離はＬ２である。Ｌ１＜Ｌ２であり、ガイドブッシュ４３、４３の穴間の最も外側の距離よりも、ガイドポスト２１、２１の最も外側間の距離が大きい。 Next, another aspect of the second embodiment will be described. In addition, the same code | symbol is attached | subjected about the same structure as the structure shown in FIG. 1, and detailed description is abbreviate | omitted.
As shown in FIG. 12A, the biasing means 80 includes a plurality of guide posts 21 and 21 and guide bushes 43 and 43 through which the plurality of guide posts 21 and 21 are inserted. The distance between the centers of the two guide bushes 43, 43 is L1. The distance between the centers of the two guide posts 21 and 21 is L2. L1 <L2, and the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43.
　以上に述べた実施例２の別態様に係る工作機械の作用を次に述べる。
　図１２（ｂ）に示すように、２つのガイドブッシュ４３、４３にそれぞれガイドポスト２１、２１が挿入される。ガイドポスト２１、２１挿入前の状態は、ガイドブッシュ４３、４３の穴間の最も外側の距離よりも、ガイドポスト２１、２１の最も外側間の距離が大きいので、ガイドポスト２１、２１により、ガイドブッシュ４３、４３の内周面４４、４４は、力Ｆ３で付勢される。この状態で、ワーク搬送治具４０を上昇させ、加工ヘッド２０によりワークを加工すると、加工によるビビリの低減を図ることができる。 Next, the operation of the machine tool according to another aspect of the second embodiment described above will be described.
As shown in FIG. 12B, the guide posts 21 and 21 are inserted into the two guide bushes 43 and 43, respectively. Since the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43 in the state before the guide posts 21 and 21 are inserted, the guide posts 21 and 21 guide the guide posts 21 and 21. The inner peripheral surfaces 44, 44 of the bushes 43, 43 are urged by a force F3. In this state, when the workpiece transfer jig 40 is raised and the workpiece is processed by the processing head 20, chatter due to the processing can be reduced.
　次にガイドポスト間の距離とガイドブッシュ間の距離との関係を説明する。
　図１３（ａ）は比較例のガイドポスト２２０とガイドブッシュ２２１の穴との距離関係を示す図である。ガイドポスト２２０の外径はｄ１であり、ガイドブッシュ２２１の穴の内径はＤ１あり、ｄ１＜Ｄ１である。また、２つのガイドポスト２２０、２２０の中心間距離はＬ１であり、２つのガイドブッシュ２２１の穴の中心間距離はＬ１であり、等しい。 Next, the relationship between the distance between the guide posts and the distance between the guide bushes will be described.
FIG. 13A is a diagram showing the distance relationship between the guide post 220 and the hole of the guide bush 221 of the comparative example. The outer diameter of the guide post 220 is d1, and the inner diameter of the hole of the guide bush 221 is D1, and d1 <D1. Further, the distance between the centers of the two guide posts 220 and 220 is L1, and the distance between the centers of the holes of the two guide bushes 221 is L1, which is equal.
　図１３（ｂ）は実施例２の別態様に示すガイドポスト２１、２１とガイドブッシュ４３、４３の穴との距離関係を示す図である。ガイドポスト２１、２１の外径はｄ１であり、ガイドブッシュ４３、４３の穴の内径はＤ１あり、ｄ１＜Ｄ１である。また、２つのガイドポスト２１、２１の中心間距離はＬ２でありと、２つのガイドブッシュ４３、４３の穴の中心間距離はＬ１であり、Ｌ１＜Ｌ２である。ガイドブッシュ４３、４３の穴間の最も外側の距離よりも、ガイドポスト２１、２１の最も外側間の距離が大きいので、ガイドポスト２１、２１により、ガイドブッシュ４３、４３の内周面４４、４４は付勢される。 FIG. 13B is a diagram showing a distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43 shown in another embodiment of the second embodiment. The outer diameter of the guide posts 21 and 21 is d1, and the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 <D1. Further, the distance between the centers of the two guide posts 21 and 21 is L2, and the distance between the centers of the holes of the two guide bushes 43 and 43 is L1, and L1 <L2. Since the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
　図１３（ｃ）は実施例２の別態様における変形例を示すガイドポスト２１、２１とガイドブッシュ４３、４３の穴との距離関係を示す図である。ガイドポスト２１、２１の外径はｄ１であり、ガイドブッシュ４３、４３の穴の内径はＤ１あり、ｄ１＜Ｄ１である。また、２つのガイドポスト２１、２１の中心間距離はＬ３でありと、２つのガイドブッシュ４３、４３の穴の中心間距離はＬ１であり、Ｌ３＜Ｌ１である。ガイドブッシュ４３、４３の穴間の最も内側の距離よりも、ガイドポスト２１、２１の最も内側間の距離が小さいので、ガイドポスト２１、２１により、ガイドブッシュ４３、４３の内周面４４、４４は付勢される。 FIG. 13 (c) is a diagram showing the distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43, showing a modification of another embodiment of the second embodiment. The outer diameter of the guide posts 21 and 21 is d1, and the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 <D1. The distance between the centers of the two guide posts 21 and 21 is L3, and the distance between the centers of the holes of the two guide bushes 43 and 43 is L1, and L3 <L1. Since the innermost distance between the guide posts 21 and 21 is smaller than the innermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
　次に偏心ブッシュについて説明する。
　図１４に示すように、ガイドポスト２１の基端部８１に、ガイドブッシュ４３（図１２）に付勢されることでガイドポスト２１同士が近づくように偏心する偏心ブッシュ８２が設けられる。ガイドブッシュ４３へのガイドポスト２１挿通前の偏心ブッシュ８２の中心は中心線８３であり、ガイドポスト２１挿通後の偏心ブッシュ８２の中心は中心線８４である。 Next, the eccentric bush will be described.
As shown in FIG. 14, an eccentric bush 82 is provided at the proximal end portion 81 of the guide post 21 so as to be eccentric so that the guide posts 21 come closer to each other by being biased by the guide bush 43 (FIG. 12). The center of the eccentric bush 82 before insertion of the guide post 21 into the guide bush 43 is a center line 83, and the center of the eccentric bush 82 after insertion of the guide post 21 is a center line 84.
　次に実施例２の更なる別態様について説明する。なお、図１に示した構成と同一構成については同一符号を付け、詳細説明は省略する。
　図１５はガイドブッシュ４３周辺の拡大図であり、付勢手段９０は、ガイドブッシュ４３の穴の内周面４４の一部に設けられる。 Next, still another aspect of the second embodiment will be described. In addition, the same code | symbol is attached | subjected about the same structure as the structure shown in FIG. 1, and detailed description is abbreviate | omitted.
FIG. 15 is an enlarged view around the guide bush 43, and the urging means 90 is provided on a part of the inner peripheral surface 44 of the hole of the guide bush 43.
　付勢手段９０は、ガイドブッシュ４３に設けられた切り欠き部９１と、この切り欠き部９１に移動可能に設けられガイドブッシュ４３の穴の径方向に移動する押圧部９２と、治具本体部４１に設けられ押圧部９２を押すボルト９３と、切り欠き部９１にボルト９３に対向するように設けられ押圧部９２を受ける受け部材９４とからなる。 The urging means 90 includes a notch 91 provided in the guide bush 43, a pressing part 92 that is movably provided in the notch 91 and moves in the radial direction of the hole of the guide bush 43, and a jig body. 41 includes a bolt 93 that presses the pressing portion 92, and a receiving member 94 that is provided in the notch portion 91 so as to face the bolt 93 and receives the pressing portion 92.
　以上に述べた実施例２の更なる別態様に係る工作機械の作用を次に述べる。
　ボルト９３をねじ込むと、押圧部９２はガイドブッシュ４３の穴の径方向に移動する。押圧部９２によりガイドポスト２１は力Ｆ４で付勢される。結果、ガイドポスト２１をガイドブッシュ４３の穴の内周面４４に付勢することができる。なお、受け部材９４は弾性体である。 The operation of the machine tool according to another aspect of the second embodiment described above will be described next.
When the bolt 93 is screwed, the pressing portion 92 moves in the radial direction of the hole of the guide bush 43. The guide post 21 is urged by the pressing portion 92 with a force F4. As a result, the guide post 21 can be urged toward the inner peripheral surface 44 of the hole of the guide bush 43. The receiving member 94 is an elastic body.
　次にガイドポスト間の距離とガイドブッシュ間の距離との関係を説明する。
　図１６（ａ）は比較例のガイドポスト２２０とガイドブッシュ２２１の穴との距離関係を示す図である。ガイドポスト２２０の外径はｄ１であり、ガイドブッシュ２２１の穴の内径はＤ１あり、ｄ１＜Ｄ１である。また、２つのガイドポスト２２０、２２０の中心間距離はＬ１であり、２つのガイドブッシュ２２１の穴の中心間距離はＬ１であり、等しい。 Next, the relationship between the distance between the guide posts and the distance between the guide bushes will be described.
FIG. 16A is a diagram showing the distance relationship between the guide post 220 and the hole of the guide bush 221 of the comparative example. The outer diameter of the guide post 220 is d1, and the inner diameter of the hole of the guide bush 221 is D1, and d1 <D1. Further, the distance between the centers of the two guide posts 220 and 220 is L1, and the distance between the centers of the holes of the two guide bushes 221 is L1, which is equal.
　図１６（ｂ）は実施例２の更なる別態様に示すガイドポスト２１、２１とガイドブッシュ４３、４３の穴との距離関係を示す図である。ガイドポスト２１、２１の外径はｄ１であり、ガイドブッシュ４３、４３の穴の内径はＤ１あり、ｄ１＜Ｄ１である。また、２つのガイドポスト２１、２１の中心間距離はＬ１であり、２つのガイドブッシュ４３、４３の穴の中心間距離はＬ４であり、Ｌ４＜Ｌ１である。ガイドブッシュ４３、４３の穴間の最も外側の距離よりも、ガイドポスト２１、２１の最も外側間の距離が大きいので、ガイドポスト２１、２１により、ガイドブッシュ４３、４３の内周面４４、４４は付勢される。 FIG. 16B is a diagram showing a distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43 shown in still another embodiment of the second embodiment. The outer diameter of the guide posts 21 and 21 is d1, and the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 <D1. The distance between the centers of the two guide posts 21 and 21 is L1, the distance between the centers of the holes of the two guide bushes 43 and 43 is L4, and L4 <L1. Since the distance between the outermost sides of the guide posts 21 and 21 is larger than the outermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
　図１６（ｃ）は実施例２の更なる別態様における変形例を示すガイドポスト２１、２１とガイドブッシュ４３、４３の穴との距離関係を示す図である。ガイドポスト２１、２１の外径はｄ１であり、ガイドブッシュ４３、４３の穴の内径はＤ１あり、ｄ１＜Ｄ１である。また、２つのガイドポスト２１、２１の中心間距離はＬ１であり、２つのガイドブッシュ４３、４３の穴の中心間距離はＬ５であり、Ｌ１＜Ｌ５である。ガイドブッシュ４３、４３の穴間の最も内側の距離よりも、ガイドポスト２１、２１の最も内側間の距離が小さいので、ガイドポスト２１、２１により、ガイドブッシュ４３、４３の内周面４４、４４は付勢される。 FIG. 16 (c) is a diagram showing a distance relationship between the guide posts 21 and 21 and the holes of the guide bushes 43 and 43, which shows a modification in yet another aspect of the second embodiment. The outer diameter of the guide posts 21 and 21 is d1, and the inner diameter of the holes of the guide bushes 43 and 43 is D1, and d1 <D1. The distance between the centers of the two guide posts 21 and 21 is L1, the distance between the centers of the holes of the two guide bushes 43 and 43 is L5, and L1 <L5. Since the innermost distance between the guide posts 21 and 21 is smaller than the innermost distance between the holes of the guide bushes 43 and 43, the inner peripheral surfaces 44 and 44 of the guide bushes 43 and 43 are formed by the guide posts 21 and 21. Is energized.
　次に、本発明の実施例３を図面に基づいて説明する。なお、図２に示した構成と同一構成については同一符号を付け、詳細説明は省略する。
　図１７に示すように、加工ヘッド２０は、加工ヘッド本体部２３と、この加工ヘッド本体部２３の下部に設けられ工具２４を保持するスピンドル２５と、ギヤボックス１００とからなる。 Next, Embodiment 3 of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached about the same structure as the structure shown in FIG. 2, and detailed description is abbreviate | omitted.
As shown in FIG. 17, the machining head 20 includes a machining head main body 23, a spindle 25 that is provided below the machining head main body 23 and holds a tool 24, and a gear box 100.
　ワーク搬送治具４０は、治具本体部４１に設けられ加工ヘッド２０を駆動させる加工用動力源１０１と、加工用動力源１０１から上方に延び回転するスプライン軸１０２と、このスプライン軸１０２の上端に設けられギヤボックス１００に接続される接続部１１０と、加工用動力源１０１にスプライン軸１０２を囲うように設けられ接続部１１０を上方に付勢する弾性部材１０３とを備える。 The workpiece conveying jig 40 includes a machining power source 101 that is provided in the jig body 41 and drives the machining head 20, a spline shaft 102 that extends upward from the machining power source 101 and rotates, and an upper end of the spline shaft 102. And a connecting portion 110 connected to the gear box 100 and an elastic member 103 provided so as to surround the spline shaft 102 in the machining power source 101 and biasing the connecting portion 110 upward.
　ギヤボックス１００は、ケース部１０４と、このケース部１０４に設けられ従動軸１０５を介して回転自在に設けられる従動歯車１０６と、ケース部１０４の上部に設けられ接続部１１０を受ける軸受け部１０７とからなる。 The gear box 100 includes a case portion 104, a driven gear 106 provided on the case portion 104 and rotatably provided via a driven shaft 105, and a bearing portion 107 provided on an upper portion of the case portion 104 and receiving a connection portion 110. Consists of.
　次に、接続部１１０について詳しく説明する。
　図１８に示すように、接続部１１０は、スプライン軸１０２に沿って移動自在に設けられる従動歯車１０６に噛み合う駆動歯車１１１と、この駆動歯車１１１の下部に設けられる下部スラスト軸受１１２と、駆動歯車１１１に設けられ下部スラスト軸受１１２を留めるクリップ部材１１３と、駆動歯車１１１の上部に設けられる上部スラスト軸受１１４とからなる。 Next, the connection unit 110 will be described in detail.
As shown in FIG. 18, the connecting portion 110 includes a drive gear 111 that meshes with a driven gear 106 that is movably provided along the spline shaft 102, a lower thrust bearing 112 that is provided below the drive gear 111, and a drive gear. The clip member 113 is provided at 111 and holds the lower thrust bearing 112, and the upper thrust bearing 114 is provided above the drive gear 111.
　下部スラスト軸受１１２には凹部１１５がもうけられており、この凹部１１５に弾性部材１０３が当接する。駆動歯車１１１は弾性部材１０３により上方に付勢される。スプライン軸１０２は、受け部１０７に挿通される。上部スラスト軸受１１４は受け台１０８に当接される。 A recess 115 is provided in the lower thrust bearing 112, and the elastic member 103 contacts the recess 115. The drive gear 111 is biased upward by the elastic member 103. The spline shaft 102 is inserted through the receiving portion 107. The upper thrust bearing 114 is in contact with the cradle 108.
　次に、スプライン軸１０２について説明する。
　図１９に示すように、スプライン軸１０２の外周にスプライン部１１６が設けられる。駆動歯車１１１には、スプライン部１１６を受けるスプライン溝１１７が設けられる。駆動歯車１１１は、スプライン軸１０２と一体になり回転するが、スプライン軸１０２の軸方向に沿って移動可能である。 Next, the spline shaft 102 will be described.
As shown in FIG. 19, a spline portion 116 is provided on the outer periphery of the spline shaft 102. The drive gear 111 is provided with a spline groove 117 that receives the spline portion 116. The drive gear 111 rotates integrally with the spline shaft 102, but can move along the axial direction of the spline shaft 102.
　以上に述べた実施例３に係る工作機械の作用を次に述べる。
　図２０（ａ）に示すように、ワーク搬送治具４０を上昇させると、接続部１１０も矢印（１６）のように上昇する。ガイドポスト２１がガイドブッシュ４３に挿通され、加工ヘッド２０にワーク搬送治具４０が位置決めされる。 Next, the operation of the machine tool according to the third embodiment described above will be described.
As shown in FIG. 20A, when the workpiece conveying jig 40 is raised, the connecting portion 110 is also raised as shown by the arrow (16). The guide post 21 is inserted into the guide bush 43, and the workpiece conveying jig 40 is positioned on the machining head 20.
　図２０（ｂ）に示すように、ワーク搬送治具４０をさらに上昇させると、接続部１１０はギヤボックス１００に接続され、駆動歯車１１１に従動歯車１０６が噛み合う。スプライン軸１０２はケース部１０４を貫通し、駆動歯車１１１は従動歯車１０６に噛み合った状態を保つ。結果、加工用動力源１０１の動力が加工ヘッド２０に伝達され、加工ヘッド２０により、ワーク１５に加工が施される。 As shown in FIG. 20B, when the work conveying jig 40 is further raised, the connecting portion 110 is connected to the gear box 100 and the driven gear 106 is engaged with the driving gear 111. The spline shaft 102 passes through the case portion 104, and the drive gear 111 is kept engaged with the driven gear 106. As a result, the power of the machining power source 101 is transmitted to the machining head 20, and the workpiece 15 is machined by the machining head 20.
　以上に述べた実施例１に係る工作機械１０をまとめて以下に記載する。
　図１及び図２に示すように、架台１４にスライド可能に設けられワーク１５を搬送するワーク搬送治具４０と、架台１４に固定されワーク搬送治具４０に取付けられたワーク１５を加工する加工ヘッド２０とからなる工作機械１０において、加工ヘッド２０に対向する位置にワーク搬送治具４０を移動させる動力源３２と、ワーク搬送治具４０に設けられワーク１５の被加工部を加工ヘッド２０に近づけて加工する被加工部移動機構５０とからなる。 The machine tool 10 according to the first embodiment described above will be collectively described below.
As shown in FIGS. 1 and 2, a workpiece conveying jig 40 that is slidably provided on the gantry 14 and conveys the workpiece 15, and a workpiece that is fixed to the gantry 14 and attached to the workpiece conveying jig 40. In the machine tool 10 including the head 20, a power source 32 that moves the workpiece conveyance jig 40 to a position facing the machining head 20, and a portion to be processed of the workpiece 15 provided on the workpiece conveyance jig 40 to the machining head 20. A workpiece moving mechanism 50 that processes the workpieces close to each other.
　この構成により、動力源３２で加工ヘッド２０に対向する位置にワーク搬送治具４０を移動させるとともに、被加工部移動機構５０をワーク搬送治具４０に設けたので、複数の加工ヘッド２０をインデックス機構で切換える工作機械に比較し、本発明では複雑なインデックス機構を必要とせず、装置の構造が簡単で装置全体のコストの低減を図ることができる。
　なお、ワーク搬送治具４０を自走させる動力源３２をワーク搬送治具に設ける例を示したが、ワーク搬送治具４０を移動させるためには、架台１４等に設けられた図示しない駆動源にて図示しない無端状歯車付きベルトを、架台１４に沿って駆動させ、その駆動力でワーク搬送治具４０を移動させても構わない。しかしながら、無端状歯車付きベルトは不可避的な経年的延びが生じ、比較的精度が高い位置決めには向かない。スライド機構３０をピニオン３６とラック１７による構成とした方が、比較的精度が高い位置決めができる。無端状歯車付きベルトに替えて、金属チェーンでも構わない。しかしながら、不可避的な経年的帯が生じることは変わらない。 With this configuration, since the work conveyance jig 40 is moved to a position facing the machining head 20 by the power source 32 and the workpiece transfer mechanism 50 is provided in the workpiece conveyance jig 40, the plurality of machining heads 20 are indexed. Compared to a machine tool switched by a mechanism, the present invention does not require a complicated index mechanism, and the structure of the apparatus is simple and the cost of the entire apparatus can be reduced.
In addition, although the example which provides the power source 32 which makes the workpiece conveyance jig | tool 40 self-propelled in the workpiece conveyance jig was shown, in order to move the workpiece conveyance jig 40, the drive source which is not shown provided in the mount frame 14 grade | etc., A belt with an endless gear (not shown) may be driven along the gantry 14 and the workpiece conveying jig 40 may be moved by the driving force. However, the belt with endless gears inevitably extends over time, and is not suitable for positioning with relatively high accuracy. If the slide mechanism 30 is configured by the pinion 36 and the rack 17, positioning with relatively high accuracy can be performed. A metal chain may be used instead of the belt with endless gears. However, there is no change in the inevitable aging.
　加えて、複数の加工ヘッド２０のそれぞれに被加工部移動機構５０を設けた場合に比較しても、本発明では一つのワーク搬送治具４０に被加工部移動機構５０を設けるので、装置の構造を簡単にでき、装置全体のコストを低くすることができる。
　さらに、仮に複数の重い加工ヘッドを交換機構で交換すると消費エネルギーが増大するが、本発明ではワーク搬送治具４０を移動させるだけであるので、消費エネルギーを抑えられ、ランニングコストを抑えることができる。 In addition, even when compared with the case where the workpiece moving mechanism 50 is provided for each of the plurality of machining heads 20, in the present invention, the workpiece moving mechanism 50 is provided in one workpiece conveyance jig 40, so The structure can be simplified and the cost of the entire apparatus can be reduced.
Furthermore, if a plurality of heavy machining heads are replaced with an exchange mechanism, the energy consumption increases. However, in the present invention, since only the workpiece conveying jig 40 is moved, the energy consumption can be suppressed and the running cost can be suppressed. .
　図２に示すように、加工ヘッド２０に下向きに装着されワーク１５を加工する工具２４と、ワーク搬送治具４０または加工ヘッド２０のうちどちらか一方に設けられ上下方向に延びるガイドポスト２１と、ワーク搬送治具４０または加工ヘッド２０のうちどちらか他方に設けられガイドポスト２１が挿通されるガイドブッシュ４３とを備え、ワーク搬送治具４０が上昇することにより、加工ヘッド２０にワーク搬送治具４０が昇降自在に連結され、ワーク搬送治具４０に取付けられたワーク１５が工具２４により加工される。 As shown in FIG. 2, a tool 24 that is mounted downward on the machining head 20 to machine the workpiece 15, a guide post 21 that is provided on either the workpiece conveying jig 40 or the machining head 20 and extends in the vertical direction, A guide bush 43 provided on either the workpiece conveying jig 40 or the processing head 20 and through which the guide post 21 is inserted is provided. When the workpiece conveying jig 40 is raised, the workpiece conveying jig 40 is moved to the machining head 20. 40 is connected to be movable up and down, and the workpiece 15 attached to the workpiece conveying jig 40 is processed by the tool 24.
　この構成により、ワーク搬送治具４０が上昇することにより、ガイドポスト２１がガイドブッシュ４３に挿入されるので、加工ヘッド２０にワーク搬送治具４０が位置決めできる。この結果、ワーク１５の加工精度の向上を図ることができる。 With this configuration, when the workpiece conveyance jig 40 is raised, the guide post 21 is inserted into the guide bush 43, so that the workpiece conveyance jig 40 can be positioned on the machining head 20. As a result, the machining accuracy of the workpiece 15 can be improved.
　図２に示すように、ワーク搬送治具４０は、架台１４をスライドするスライド機構３０を介して架台１４に吊り下げられ、被加工部移動機構５０は、スライド機構３０とワーク搬送治具４０とに上下に延び進退する進退ロッド５２を介して連結され、進退ロッド５２が退くことによりワーク搬送治具４０が上昇する。 As shown in FIG. 2, the workpiece conveyance jig 40 is suspended from the gantry 14 via a slide mechanism 30 that slides the gantry 14, and the workpiece movement mechanism 50 includes the slide mechanism 30, the workpiece conveyance jig 40, and the like. The workpiece conveying jig 40 is lifted when the advance / retreat rod 52 is retracted.
　この構成により、被加工部移動機構５０はスライド機構３０に進退ロッド５２を連結しただけであるので、被加工部移動機構５０を簡易な構造にできる。 This configuration allows the workpiece moving mechanism 50 to have a simple structure since the workpiece moving mechanism 50 is simply connected to the slide mechanism 30 with the advance / retreat rod 52.
　図２に示すように、動力源３２は、ワーク搬送治具４０に設けられ、ワーク搬送治具４０を自走させる。 As shown in FIG. 2, the power source 32 is provided in the workpiece conveyance jig 40 and causes the workpiece conveyance jig 40 to self-run.
　動力源３２をワーク搬送治具４０に設けたので、複数の加工ヘッド２０のそれぞれに動力源３２を設けた場合に比較し、装置の構造を簡単にでき、より一層装置全体のコストを低くすることができる。 Since the power source 32 is provided in the workpiece conveying jig 40, the structure of the apparatus can be simplified and the cost of the entire apparatus can be further reduced as compared with the case where the power source 32 is provided for each of the plurality of machining heads 20. be able to.
　図２に示すように、ガイドポスト２１およびガイドブッシュ４３により、加工ヘッド２０とワーク搬送治具４０とを位置決めする位置決め機構２２が構成され、加工ヘッド２０は、複数の工具２４をそれぞれ保持する複数のスピンドル２５を備え、ワーク１５が取付けられたワーク搬送治具４０が上昇することにより施される少なくとも２回分の加工に必要な数の工具２４が、スピンドル２５を介して加工ヘッド２０に設けられている。 As shown in FIG. 2, the guide post 21 and the guide bush 43 constitute a positioning mechanism 22 that positions the machining head 20 and the workpiece conveying jig 40, and the machining head 20 has a plurality of tools 24 each holding a plurality of tools 24. The number of tools 24 required for at least two machining operations performed by raising the workpiece conveying jig 40 to which the workpiece 15 is attached is provided on the machining head 20 via the spindle 25. ing.
　この構成により、加工ヘッド２０に少なくとも２回分の加工に必要な工具２４が設けられているので、加工ヘッド２０によってワーク１５に１回目の加工を施した後、ワーク搬送治具４０を移動させ、同じ加工ヘッド２０によりワーク１５に２回目の加工を施すことができる。結果、一つの加工ヘッド２０で実施できる工程を複数に増やすことができ、工作機械の省スペース化を図ることができる。 With this configuration, the processing head 20 is provided with the tool 24 necessary for processing at least twice, so that the workpiece transport jig 40 is moved after the processing head 20 performs the first processing on the workpiece 15, The workpiece 15 can be subjected to the second machining by the same machining head 20. As a result, the number of steps that can be performed by one machining head 20 can be increased to a plurality, and space saving of the machine tool can be achieved.
　尚、本発明の工作機械１０は、被加工部移動機構５０により、ワーク搬送装置４０全体を昇降させる構成としたが、これに限定されず、加工ヘッドにワーク１５が位置決めされれば、ワーク１５のみを昇降させてワーク１５の被加工部を加工ヘッド２０によって加工する構成としても差し支えない。
　加えて、スライド機構３０をピニオン３６とラック１７による構成としたが、これに限定されず、ワーク搬送治具４０の移動を制御できれば、レール１６に車輪３７、３９を載せる構成など他の構成であっても差し支えない。 The machine tool 10 of the present invention has a configuration in which the workpiece transfer device 40 is moved up and down by the workpiece moving mechanism 50. However, the present invention is not limited to this, and if the workpiece 15 is positioned on the machining head, the workpiece 15 is moved. However, there is no problem even if the workpiece 15 is machined by the machining head 20 by moving up and down only.
In addition, the slide mechanism 30 is configured by the pinion 36 and the rack 17. However, the configuration is not limited to this, and other configurations such as a configuration in which the wheels 37 and 39 are mounted on the rail 16 are possible as long as the movement of the workpiece conveying jig 40 can be controlled. There is no problem.
　本発明の工作機械は、加工ヘッドにワーク搬送治具を近づけてワークを加工する工作機械に好適である。 The machine tool of the present invention is suitable for a machine tool that processes a workpiece by bringing a workpiece transfer jig closer to the processing head.
　１０…工作機械、１４…架台、１５…ワーク、２０…加工ヘッド、２１…ガイドポスト、２２…位置決め機構、２４…工具、２５…スピンドル、３０…スライド機構、３２…動力源、４０…ワーク搬送治具、４３…ガイドブッシュ、５０…被加工部移動機構、５２…進退ロッド。 DESCRIPTION OF SYMBOLS 10 ... Machine tool, 14 ... Mount, 15 ... Workpiece, 20 ... Processing head, 21 ... Guide post, 22 ... Positioning mechanism, 24 ... Tool, 25 ... Spindle, 30 ... Slide mechanism, 32 ... Power source, 40 ... Work conveyance Jig, 43 ... guide bush, 50 ... work part moving mechanism, 52 ... advance / retreat rod.

Claims (5)

  1. 　架台にスライド可能に設けられワークを搬送するワーク搬送治具と、前記架台に固定され前記ワーク搬送治具に取付けられた前記ワークを加工する加工ヘッドとからなる工作機械において、
    　前記加工ヘッドに対向する位置に前記ワーク搬送治具を移動させる動力源と、
    　前記ワーク搬送治具に設けられ前記ワークの被加工部を前記加工ヘッドに近づけて加工する被加工部移動機構と、
    を備えていることを特徴とする工作機械。     In a machine tool comprising a workpiece conveyance jig that is slidably provided on a gantry and conveys a workpiece, and a machining head that is fixed to the gantry and is attached to the workpiece conveyance jig and that processes the workpiece.
    A power source for moving the workpiece conveying jig to a position facing the machining head;
    A workpiece moving mechanism that is provided in the workpiece conveying jig and processes a workpiece portion of the workpiece close to the machining head;
    A machine tool characterized by comprising:
  2. 　前記加工ヘッドに下向きに装着され前記ワークを加工する工具と、前記ワーク搬送治具または前記加工ヘッドのうちどちらか一方に設けられ上下方向に延びるガイドポストと、前記ワーク搬送治具または前記加工ヘッドのうちどちらか他方に設けられ前記ガイドポストが挿通されるガイドブッシュとを備え、
    　前記ワーク搬送治具が上昇することにより、前記加工ヘッドに前記ワーク搬送治具が昇降自在に連結され、前記ワーク搬送治具に取付けられた前記ワークが前記工具により加工される、請求項１に記載の工作機械。     A tool that is mounted downward on the machining head and processes the workpiece, a guide post that is provided on either the workpiece conveyance jig or the machining head and extends in the vertical direction, and the workpiece conveyance jig or the machining head A guide bush provided on either side of the guide post and inserted through the guide post,
    The workpiece transfer jig is connected to the machining head so that the workpiece transfer jig can be moved up and down by raising the workpiece transfer jig, and the workpiece attached to the workpiece transfer jig is processed by the tool. The machine tool described.
  3. 　前記ワーク搬送治具は、前記架台をスライドするスライド機構を介して前記架台に吊り下げられ、
    　前記被加工部移動機構は、前記スライド機構と前記ワーク搬送治具とに上下に延び進退する進退ロッドを介して連結され、
    　前記進退ロッドが退くことにより前記ワーク搬送治具が上昇する、請求項１又は請求項２に記載の工作機械。     The work conveying jig is suspended from the gantry via a slide mechanism that slides the gantry,
    The workpiece moving mechanism is connected to the slide mechanism and the work conveying jig via an advancing / retracting rod that extends up and down,
    The machine tool according to claim 1, wherein the workpiece conveying jig is raised by retreating the advance / retreat rod.
  4. 　前記動力源は、前記ワーク搬送治具に設けられ、前記ワーク搬送治具を自走させる、請求項１に記載の工作機械。 The machine tool according to claim 1, wherein the power source is provided in the workpiece conveyance jig and causes the workpiece conveyance jig to self-propell.
  5. 　前記ガイドポストおよび前記ガイドブッシュにより、前記加工ヘッドと前記ワーク搬送治具とを位置決めする位置決め機構が構成され、
    　前記加工ヘッドは、複数の前記工具をそれぞれ保持する複数のスピンドルを備え、
    　前記ワークが取付けられた前記ワーク搬送治具が上昇することにより施される少なくとも２回分の加工に必要な数の前記工具が、前記スピンドルを介して前記加工ヘッドに設けられている、請求項２に記載の工作機械。     The guide post and the guide bush constitute a positioning mechanism for positioning the processing head and the workpiece conveying jig.
    The machining head includes a plurality of spindles that respectively hold a plurality of the tools,
    3. The machining head is provided with the number of tools necessary for at least two machining operations performed by raising the workpiece conveying jig to which the workpiece is attached, on the machining head via the spindle. The machine tool described in 1.
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US20150336180A1 (en) * 2013-02-06 2015-11-26 Aircelle Device for drilling an acoustic component, casette, acoustic drilling method and method of manufacturing an acoustic component
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