CN113319630B - Tool magazine of numerical control machine tool - Google Patents
Tool magazine of numerical control machine tool Download PDFInfo
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- CN113319630B CN113319630B CN202110726717.4A CN202110726717A CN113319630B CN 113319630 B CN113319630 B CN 113319630B CN 202110726717 A CN202110726717 A CN 202110726717A CN 113319630 B CN113319630 B CN 113319630B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/155—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling
- B23Q3/1552—Arrangements for automatic insertion or removal of tools, e.g. combined with manual handling parts of devices for automatically inserting or removing tools
- B23Q3/15526—Storage devices; Drive mechanisms therefor
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Abstract
The invention discloses a tool magazine of a numerical control machine tool, which relates to the technical field of numerical control machines and comprises a fixed foundation and two cutter heads arranged in parallel, wherein the two cutter heads are coaxially and rotatably arranged on the fixed foundation, the peripheral sides of the two cutter heads are respectively and rotatably connected with a plurality of tool sleeves distributed in an annular array, the tool sleeves are used for clamping tools, the two cutter heads are respectively provided with a loading and unloading position, and the loading and unloading position is positioned at the central position between the two cutter heads so that the two loading and unloading positions are superposed. According to the tool magazine of the numerical control machine tool, the two cutter discs are arranged, so that the tool storage capacity is increased; the loading and unloading positions of the two cutter heads are arranged at the central position between the two cutter heads, so that the two loading and unloading positions can be coincided, and the cutter can be conveniently loaded and unloaded on any cutter sleeve by the manipulator at the loading and unloading positions. This digit control machine tool magazine can direct adaptation in the current digit control machine tool that only has a loading and unloading cutter state manipulator, has greatly made things convenient for the dilatation to current digit control machine tool magazine.
Description
Technical Field
The invention relates to the technical field of numerical control machines, in particular to a tool magazine of a numerical control machine tool.
Background
The numerical control machine tool is an automatic machine tool equipped with a program control system, the control system can logically process a program defined by a control code or other symbolic instructions, decode the program, represent the decoded program by a coded number, input the coded number into a numerical control device through an information carrier, send various control signals by the numerical control device through operation processing, control the action of the machine tool, and automatically machine a workpiece according to the shape and the size required by a drawing. The tool magazine system of the numerical control machine tool generally comprises a tool magazine, a switching mechanism and a control system, wherein the tool magazine mainly provides a tool storage position and can correctly select a tool for positioning according to the control system so as to carry out tool switching; the tool changing mechanism, also called a manipulator, is an operation for performing tool exchange. Along with the precision, the complexity of work piece processing are higher and higher, the kind quantity that uses the cutter in the digit control machine tool course of working also is more and more, needs carry out the dilatation to the tool magazine.
For example, a patent application having publication No. CN112122980A, publication No. 2020, 12 and 25, entitled "system for numerically controlled machine tool magazine", includes: the tool magazine assembly comprises a tool disc and a tool magazine moving seat, a plurality of tool placing holes are formed in the tool disc, and the tool disc is arranged in the tool magazine moving seat; the tool magazine moving assembly comprises a power unit, a transmission unit and a guide unit, the transmission unit is connected with the tool magazine moving seat, the power unit is used for driving the tool magazine moving seat to move, and the guide unit is used for controlling the moving direction of the tool magazine moving seat; the base is used for fixing the power unit and the guide unit. Therefore, the storage of multiple cutters, the expansion of a cutter library and the quick cutter switching can be realized. In addition, the invention patents with the publication numbers of CN109894903B and CN105965302B also disclose the corresponding tool magazine structures of the numerical control machine tool.
In the prior art, a tool magazine of a numerical control machine tool generally only has one cutter head (tool rest), the number of stored tools is limited, the machining of some complex workpieces cannot be met, if two cutter heads are arranged, the numerical control machine tool cannot be directly applicable to the existing numerical control machine tool with only one manipulator in a tool taking (or tool placing) state, two states of taking (or placing) the tools need to be additionally configured for the manipulator, and the difficulty of expanding the capacity of the tool magazine is undoubtedly increased.
Disclosure of Invention
The invention aims to provide a tool magazine of a numerical control machine tool, which aims to overcome the defects in the prior art.
In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a digit control machine tool magazine, includes fixed basis and two parallel arrangement's blade disc, two coaxial rotation of blade disc set up in on the fixed basis, two all rotate in week side of blade disc and be connected with a plurality of tool sleeves that are the annular array and distribute, the tool sleeve is used for the centre gripping cutter, two the blade disc all has a loading and unloading position, the loading and unloading position is located two central point between the blade disc puts so that two loading and unloading positions coincide mutually.
Furthermore, the knife sleeve comprises a clamping part and a rotating part which are connected, the rotating part is rotationally connected with the knife disc through a rotating shaft, the clamping part comprises an inserting pipe fixedly connected on the rotating rod part, the inner wall of the inserting pipe is provided with a first annular groove, the notch of the first annular groove is a necking, a plurality of balls distributed annularly are movably arranged in the first annular groove, a second annular groove communicated with the first annular groove is formed in the insertion pipe, a squeezing ring is arranged in the second annular groove in a sliding manner along the axial direction of the insertion pipe, the inner wall surface of the extrusion ring consists of a cylindrical surface and a conical surface, a first elastic unit is arranged in the second annular groove, the process that the first elastic unit recovers deformation drives the compression ring to extrude the spheres to move towards the axis of the insertion pipe so that the spheres are clamped with the groove of the handle part of the cutter, and the cutter is clamped and fixed.
Furthermore, the cutter head driving device further comprises a first driving mechanism, and the first driving mechanism is used for driving the two cutter heads to rotate respectively.
Furthermore, the first driving mechanism comprises two first servo motors, and the two first servo motors drive the two cutter heads to rotate in a one-to-one correspondence manner.
Further, first actuating mechanism includes axostylus axostyle, resistance piece, two one-way driving medium and second servo motor, wherein, the axostylus axostyle rotates to be connected on fixed basis, two the coaxial rotation of blade disc sets up on the axostylus axostyle, resistance piece is used for increasing the rotation resistance of blade disc, two one-way driving medium and two the blade disc one-to-one, and the homoenergetic can accept the drive of axostylus axostyle and rotate, and one of them one-way driving medium only can drive the blade disc corotation that corresponds, and another one-way driving medium only can drive the blade disc reversal that corresponds, second servo motor is used for the drive the axostylus axostyle rotates.
Furthermore, the one-way transmission part comprises a plurality of first inclined plane blocks, a slip ring, a plurality of second inclined plane blocks and a second elastic unit, wherein the plurality of first inclined plane blocks are fixedly connected to the corresponding cutter head in an annular array manner, the slip ring is connected to the shaft rod in a sliding manner along the axial direction of the shaft rod, the plurality of second inclined plane blocks are arranged on the peripheral side of the slip ring in an annular array manner, each first inclined plane block has a blocking position which is blocked and connected with the second inclined plane block in a sliding process along with the slip ring, the elastic force of the second elastic unit acts on each second inclined plane block to enable the second inclined plane to tend to slide towards the blocking position, the slip ring receives the rotary drive of the shaft rod to enable each first inclined plane block to rotate, when the blocking position is reached, each second inclined plane block rotates along the first direction to drive each first wedge block to rotate, when each second wedge block rotates along the direction opposite to the first direction, the elastic force of the second elastic unit is overcome through the action of the inclined plane and the first wedge block, and out of the geared position to idle.
Furthermore, a nut is connected to the shaft rod in a threaded manner, the second elastic unit comprises a second spring, the second spring is sleeved on the shaft rod, and two ends of the second spring are respectively abutted to the sliding ring and the nut.
Further, the resistance part comprises a sleeve, two first friction plates, two second friction plates and a third elastic unit, wherein the sleeve is rotatably connected with the shaft rod, the sleeve is fixedly connected to a fixed base, the two first friction plates are fixedly connected to one side of the two cutter heads in a one-to-one correspondence manner, the two second friction plates are respectively connected to the sleeve in a sliding manner along the axial direction of the sleeve, and the third elastic unit elastically drives the two second friction plates to abut against the two first friction plates in a one-to-one correspondence manner.
Further, the cutter sleeve assembly further comprises a second driving mechanism, and the second driving mechanism is used for driving a cutter sleeve to rotate to a loading and unloading position.
Further, the second driving mechanism comprises a plurality of gears, a plurality of racks, a fixed guide rod, a sliding part, a first driving unit and a second driving unit, wherein the plurality of gears are coaxially connected to the rotating shafts of the cutter sleeves in a one-to-one correspondence manner, the plurality of racks are slidably arranged on the corresponding cutter heads, the racks are engaged with the gears in a one-to-one correspondence manner, a clamping groove is respectively arranged on each rack, the fixed guide rod is fixedly connected with a fixed foundation through a connecting rod, the sliding guide rod is horizontally slidably connected to the fixed guide rod, the sliding part is vertically slidably arranged on the sliding guide rod and is positioned between the two cutter heads, the upper end and the lower end of the sliding part are respectively and fixedly connected with a clamping part, and a clamping part arranged on the sliding part in the sliding stroke of the sliding part is clamped into the clamping groove corresponding to the cutter sleeve above the sliding part, and one clamping part below the sliding guide rod is clamped in the clamping groove corresponding to the cutter sleeve below the sliding guide rod, the first driving unit is used for driving the sliding part to slide, and the second driving unit is used for driving the sliding guide rod to slide.
In the technical scheme, the tool magazine of the numerical control machine tool provided by the invention has the advantages that the tool storage capacity can be increased by arranging the two cutter heads; the loading and unloading positions of the two cutter heads are arranged at the central position between the two cutter heads, so that the two loading and unloading positions can be coincided, and the cutter can be conveniently loaded and unloaded on any cutter sleeve by the manipulator at the loading and unloading positions. This digit control machine tool magazine can direct adaptation in the current digit control machine tool that only a loading and unloading cutter (get the sword or put the sword) state manipulator, need not additionally to dispose the state of two kinds of loading and unloading cutters for the manipulator, has greatly made things convenient for the dilatation to current digit control machine tool magazine.
Drawings
In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic view of an overall structure of a knife storage according to an embodiment of the present invention;
fig. 2 is an overall structural front view of the knife storage according to the embodiment of the present invention;
fig. 3 is a schematic view of the overall structure of the upper cutter head when the cutter is mounted and dismounted according to the embodiment of the invention;
fig. 4 is an overall structural front view of the upper cutter head when the cutter is mounted and dismounted according to the embodiment of the invention;
fig. 5 is a schematic view of the overall structure of the lower cutter head when the cutter is mounted and dismounted according to the embodiment of the invention;
FIG. 6 is a front view of the overall structure of the lower head for loading and unloading the cutter according to the embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a knife pouch according to an embodiment of the present invention;
FIG. 8 is a schematic view of a tool holder according to an embodiment of the present invention;
FIG. 9 is a cross-sectional view taken along line A-A of FIG. 8 according to an embodiment of the present invention;
FIG. 10 is a schematic structural view of a knife pouch when the knife pouch is released according to an embodiment of the present invention;
FIG. 11 is a cross-sectional view taken along line B-B of FIG. 10 according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a first driving mechanism according to an embodiment of the present invention;
fig. 13 is an exploded view of a first drive mechanism according to an embodiment of the present invention;
fig. 14 is a schematic structural diagram of a second driving mechanism during knife storage according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a second driving mechanism when the knife is mounted and dismounted according to the embodiment of the invention;
FIG. 16 is a schematic structural diagram of a second driving mechanism according to an embodiment of the present invention;
FIG. 17 is a schematic structural diagram of a second driving mechanism according to another embodiment of the present invention;
fig. 18 is a schematic view of the overall structure of a loading/unloading knife according to another embodiment of the present invention;
fig. 19 is a top view of the overall structure of the loading and unloading knife according to the embodiment of the present invention.
Description of reference numerals:
1. fixing a foundation; 2. a cutter head; 3. a knife sheath; 3.1, a rotating part; 3.2, a clamping part; 3.21, inserting a pipe; 3.22, a first annular groove; 3.23, a sphere; 3.24, a second annular groove; 3.25, an extrusion ring; 3.26, a first elastic unit; 4. a first drive mechanism; 4.1, shaft lever; 4.2, a resistance piece; 4.21, a sleeve; 4.22, a first friction plate; 4.23, a second friction plate; 4.24, a third elastic unit; 4.3, a one-way transmission piece; 4.31, a first bevel block; 4.32, a slip ring; 4.33, a second bevel block; 4.34, a second elastic unit; 4.35, a nut; 5. a second drive mechanism; 5.1, a gear; 5.2, a rack; 5.3, clamping grooves; 5.4, fixing a guide rod; 5.5, sliding a guide rod; 5.6, a sliding part; 5.7, a clamping part; 5.8, a first driving unit; 5.81, a second hydraulic cylinder; 5.82, a slide bar; 5.83, a chute; 5.84, struts; 5.9, a second driving unit; 5.10, connecting rod.
Detailed Description
In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 19, a tool magazine of a numerical control machine tool according to an embodiment of the present invention includes a fixed base 1 and two cutter heads 2 arranged in parallel, the two cutter heads 2 are coaxially and rotatably disposed on the fixed base 1, a plurality of tool sleeves 3 distributed in an annular array are rotatably connected to the circumferential sides of the two cutter heads 2, the tool sleeves 3 are used for holding tools, the two cutter heads 2 each have a loading and unloading position, and the loading and unloading position is located at the center between the two cutter heads 2 so that the two loading and unloading positions coincide with each other.
Specifically, the fixed foundation 1 is a rack or a shell and the like, the two cutter heads 2 are consistent in structure and are coaxially arranged in an up-down parallel mode, the cutter sleeve 3 is used for clamping a cutter, a common cutter is inserted or clamped in the cutter sleeve 3, the cutter is vertically placed during cutter storage, when a manipulator takes the cutter, the cutter head 2 where the required cutter is located needs to be rotated firstly, the required cutter is aligned to the position of the manipulator, then the cutter sleeve 3 where the required cutter is located rotates 90 degrees in the direction away from the center of the cutter head 2, the cutter is horizontal, the position where the required cutter is located at the moment is the assembling and disassembling position of the cutter head 2 where the required cutter is located, the required cutter is taken away through the manipulator, and the cutter is placed back through the manipulator after the cutter is used; if the needed cutter is on another cutter head 2, another cutter head 2 is rotated according to the steps to enable the needed cutter to be aligned to the position of the manipulator, then the cutter sleeve 3 of the needed cutter is rotated 90 degrees in the direction away from the center of the cutter head 2 to enable the cutter to be horizontal, the position where the needed cutter is located is the loading and unloading position of the cutter head 2 where the needed cutter is located, the loading and unloading positions of the two cutter heads 2 are completely overlapped, therefore, no matter which cutter head 2 the needed cutter is on, the needed cutter only needs to be moved to the loading and unloading position, and the program for loading and unloading the cutter by the manipulator is completely consistent with the path.
In the technical scheme, the tool magazine of the numerical control machine tool provided by the invention has the advantages that the tool storage capacity can be increased by arranging the two cutter heads 2; the assembling and disassembling positions of the two cutter heads 2 are arranged at the central position between the two cutter heads 2, so that the two assembling and disassembling positions can be coincided, and a manipulator can assemble and disassemble a cutter on any cutter sleeve 3 at the assembling and disassembling position conveniently. This digit control machine tool magazine can direct adaptation in the current digit control machine tool that only a loading and unloading cutter (get the sword or put the sword) state manipulator, need not additionally to dispose the state of two kinds of loading and unloading cutters for the manipulator, has greatly made things convenient for the dilatation to current digit control machine tool magazine.
As a preferred technical solution of this embodiment, referring to fig. 7-11, the knife pouch 3 includes a clamping portion 3.2 and a rotating portion 3.1 connected to each other, the rotating portion 3.1 is rotatably connected to the cutter head 2 through a rotating shaft, the clamping portion 3.2 includes a plug-in pipe 3.21 fixedly connected to the rotating rod portion, a first annular groove 3.22 is formed in an inner wall of the plug-in pipe 3.21, a notch of the first annular groove 3.22 is a reduced notch, a plurality of annularly distributed spheres 3.23 are movably disposed in the first annular groove 3.22, the spheres 3.23 are steel balls or alloy balls with large hardness, a second annular groove 3.24 communicated with the first annular groove 3.22 is formed in the plug-in pipe 3.21, an extrusion ring 3.25 is slidably disposed in the second annular groove 3.24 along an axial direction of the plug-in pipe 3.21, an inner wall surface of the extrusion ring 3.25 is composed of a cylindrical surface and a tapered surface, a first elastic unit 3.26 is disposed in the second annular groove 3.24, and the first elastic unit 3.26 drives the extrusion ring to move toward the axial direction of the plug-in a clamping manner to enable the insert pipe to clamp the shank portion of the cutter handle 23.23 and the cutter to move toward the axial direction in a process of the first elastic unit 3.23 The tool is clamped in place, the first elastic unit 3.26 preferably being a first spring. During knife storage, referring to fig. 8-9, a handle of a knife is inserted into the insertion tube 3.21, a groove of the handle of the knife is aligned with the first annular groove 3.22, the elastic force of the first elastic unit 3.26 enables the extrusion ring 3.25 to move axially along the insertion tube 3.21, the conical surface of the extrusion ring 3.25 simultaneously extrudes each sphere 3.23, each sphere 3.23 synchronously moves towards the axis of the insertion tube 3.21, and thus a part of each sphere 3.23 passes through the necking of the first annular groove 3.22 to enter the groove of the handle of the knife, so that the knife is clamped and fixed in the insertion tube 3.21; when the knife is loaded and unloaded, referring to fig. 10-11, the manipulator only needs to apply force to the knife along the axial direction of the insertion pipe 3.21, pressure is generated between the groove of the handle part of the knife and each ball body 3.23, so that the ball body 3.23 moves in the first annular groove 3.22, the ball body 3.23 extrudes the conical surface of the extrusion ring 3.25, the extrusion ring 3.25 overcomes the elasticity of the first elastic unit 3.26 to move, and the knife can be taken out of or inserted into the insertion pipe 3.21, and the knife is very convenient to load and unload on the whole.
Compared with the cutter clamping mode of the cutter sleeve 3 in the prior art, the technical scheme has very obvious advantages, firstly, mutual extrusion and mutual restraint are generated among the spheres 3.23 during cutter storage, so that the spheres 3.23 cannot be excessively extruded into the groove of the handle part of the cutter, and the handle part of the cutter is protected; secondly, each ball 3.23 can move, particularly, the ball 3.23 is contacted with the handle part of the cutter and rolls when the cutter is assembled and disassembled, the sliding friction between the cutter sleeve 3 and the cutter in the prior art is converted into rolling friction, the abrasion between the ball 3.23 and the handle part of the cutter is reduced, the contact positions of the surfaces of the balls 3.23 contacted with the grooves of the handle part of the cutter are possibly different when the cutter is clamped every time, and basically, all parts of the outer surface of the ball 3.23 are contacted and clamped with the grooves of the handle part of the cutter in turn along with the increase of the times of clamping, so that the surface abrasion of the ball 3.23 can be reduced to the maximum extent; moreover, the structural characteristics of the spheres 3.23 promote that the spheres 3.23 are not easy to break and damage, and if individual spheres 3.23 in each sphere 3.23 are worn, other intact spheres 3.23 can still clamp the cutter, and the clamping effect is almost not influenced, and only the worn spheres 3.23 need to be replaced in subsequent regular maintenance.
In another embodiment provided by the invention, the device further comprises a first driving mechanism 4, and the first driving mechanism 4 is used for driving the two cutterheads 2 to rotate respectively.
As a preferred solution of this embodiment, the first driving mechanism 4 includes two first servo motors (not shown in the figure), and the two first servo motors drive the two cutter discs 2 to rotate in a one-to-one correspondence manner.
As another preferred technical solution of this embodiment, referring to fig. 12-13, the first driving mechanism 4 includes a shaft lever 4.1, a resistance element 4.2, two unidirectional transmission elements 4.3, and a second servo motor, wherein the shaft lever 4.1 is rotatably connected to the fixed base 1, the two cutter discs 2 are coaxially and rotatably disposed on the shaft lever 4.1, the resistance element 4.2 is used to increase the rotational resistance of the cutter discs 2, for example, the rotational connection between the cutter discs 2 and the shaft lever 4.1 has a damping, the second servo motor drives the shaft lever 4.1 to rotate through a reducer, which can rotate the shaft lever 4.1 in a forward rotation or a reverse rotation, the two unidirectional transmission elements 4.3 are in one-to-one correspondence with the two cutter discs 2 and can both receive the driving of the shaft lever 4.1 to rotate, that is, one of the unidirectional transmission elements 4.3 is matched with one of the cutter discs 2, the other unidirectional transmission element 4.3 is matched with the other cutter disc 2, wherein one of the unidirectional transmission elements 4.3 can only drive the corresponding cutter disc 2, the other one-way transmission element 4.3 can only drive the corresponding cutter head 2 to rotate reversely. So, when second servo motor drive axostylus axostyle 4.1 corotation, can drive one of them blade disc 2 (supposing this blade disc 2 is the blade disc 2 that is located the top) corotation, then another blade disc 2 (also be the blade disc 2 of below) does not rotate, and when second servo motor (not drawn in the picture) drives axostylus axostyle 4.1 reversal, can drive the blade disc 2 of below and move in a reverse direction, the blade disc 2 of top is motionless.
As a preferable technical solution of this embodiment, the one-way transmission member 4.3 includes a plurality of first inclined surface blocks 4.31, a slip ring 4.32, a plurality of second inclined surface blocks 4.33, and a second elastic unit 4.34, wherein the plurality of first inclined surface blocks 4.31 are fixedly connected to the corresponding cutter head 2 in an annular array, the slip ring 4.32 is slidably connected to the shaft 4.1 along the axial direction of the shaft 4.1, the plurality of second inclined surface blocks 4.33 are disposed on the circumferential side of the slip ring 4.32 in an annular array, each first inclined surface block 4.31 has a blocking position in which it is blocked by the second inclined surface block 4.33 in a sliding stroke of the slip ring 4.32, the elastic force of the second elastic unit 4.34 acts on each second inclined surface block 4.33 to slide the second inclined surface to the blocking position, and the slip ring 4.32 receives the rotational drive of the shaft 4.1 to enable each first inclined surface block 4.31 to rotate. In the blocking position, each second inclined plane block 4.33 rotates along the first direction to drive each first wedge block to rotate, and when each second wedge block rotates along the direction opposite to the first direction, the inclined plane of each second wedge block and the inclined plane of each first wedge block act to overcome the elastic force of the second elastic unit 4.34 and leave the blocking position to idle. For example, in one of the cases, when the shaft lever 4.1 rotates forward, the shaft lever 4.1 drives the two slip rings 4.32 and the second inclined plane blocks 4.33 on the two slip rings 4.32 to rotate, at this time, one side of the second inclined plane block 4.33 on the upper slip ring 4.32, which is far away from the inclined plane, is in blocking contact with one side of the first inclined plane block 4.31 on the corresponding upper cutter head 2, which is far away from the inclined plane, so as to drive the upper cutter head 2 to rotate forward, at this time, the inclined plane on the second inclined plane block 4.33 on the lower slip ring 4.32 is in contact with the inclined plane on the corresponding first inclined plane block 4.31 on the lower cutter head 2, and as the shaft lever 4.1 continues to rotate, the two slide rings make the second inclined plane block 4.33 on the lower slip ring 4.32 and the lower slip ring 4.32 move against the elastic force of the second elastic unit 4.34, so as to make the second inclined plane block 4.33 on the lower slip ring 4.32 leave the blocking position and separate from the corresponding first inclined plane block 4.31, and make resistance force of the lower slip ring 4.2 act on the lower cutter head 2, so that the cutter head 2 below does not rotate; when the shaft lever 4.1 rotates reversely, the two slip rings 4.32 and the second inclined plane blocks 4.33 on the two slip rings 4.32 are driven to rotate, at this time, one side of the second inclined plane block 4.33 on the lower slip ring 4.32, which is far away from the inclined plane, is in blocking contact with one side, which is far away from the inclined plane, of the first inclined plane block 4.31 on the corresponding lower cutter head 2, so as to drive the lower cutter head 2 to rotate forwardly, at this time, the inclined plane on the second inclined plane block 4.33 on the upper slip ring 4.32 is in contact with the inclined plane on the first inclined plane block 4.31 on the corresponding upper cutter head 2, and as the shaft lever 4.1 continues to rotate, the two blocks make the second inclined plane block 4.33 on the upper slip ring 4.32 and the upper slip ring 4.32 move by the inclined plane action so as to overcome the elastic force of the second elastic unit 4.34, so as to make the second inclined plane block 4.33 on the upper slip ring 4.32 leave the blocking position and separate from the corresponding first inclined plane block 4.31, under the action of the resistance piece 4.2 on the upper cutter head 2, thereby preventing the cutter head 2 above from rotating.
In the technical scheme, the inclined surface of the first inclined surface block 4.31 and the inclined surface of the second inclined surface block 4.33 can be replaced by arc-shaped surfaces.
As a further preferable technical solution of this embodiment, the shaft 4.1 is screwed with the nut 4.35, the second elastic unit 4.34 includes a second spring, the second spring is sleeved on the shaft 4.1, and two ends of the second spring respectively abut against the slip rings 4.32 and the nut 4.35, and the magnitude of the elastic force of the second spring acting on the corresponding slip ring 4.32 can be adjusted by rotating the nut 4.35.
As a preferred technical solution of this embodiment, the resistance element 4.2 includes a sleeve 4.21, two first friction plates 4.22, two second friction plates 4.23, and a third elastic unit 4.24, wherein the sleeve 4.21 is rotatably connected to the shaft 4.1, the sleeve 4.21 is fixedly connected to the fixed base 1, the two first friction plates 4.22 are fixedly connected to adjacent sides of the two cutter discs 2 in a one-to-one correspondence manner, the two second friction plates 4.23 are respectively connected to the sleeve 4.21 in a sliding manner along an axial direction of the sleeve 4.21, and the third elastic unit 4.24 elastically drives the two second friction plates 4.23 to abut against the two first friction plates 4.22 in a one-to-one correspondence manner. The purpose of setting up resistance 4.2 is in order to cooperate one-way driving medium 4.3, second inclined plane piece 4.33 rotates along with axostylus axostyle 4.1, the inclined plane of second inclined plane piece 4.33 and the inclined plane contact of the first inclined plane piece 4.31 that corresponds, when extrudeing, the frictional resistance between the two has the trend that drives corresponding blade disc 2 and rotate, and resistance 4.2 has increased the rotational resistance of this blade disc 2, and this resistance will be greater than the frictional resistance between the two, thereby make above-mentioned second inclined plane piece 4.33 and the first inclined plane piece 4.31 that corresponds slip off, and then make corresponding blade disc 2 can not rotate.
In yet another embodiment of the present invention, referring to fig. 14-19, a second drive mechanism 5 is provided, the second drive mechanism 5 being adapted to drive the rotation of a holster 3 facing the robot to the loading and unloading position.
As a preferred technical solution of this embodiment, referring to fig. 14 to 16, the second driving mechanism 5 includes a plurality of gears 5.1, a plurality of racks 5.2, a fixed guide bar 5.4, a sliding guide bar 5.5, a sliding portion 5.6, a first driving unit 5.8 and a second driving unit 5.9, wherein the plurality of gears 5.1 are coaxially connected to the rotating shaft of each knife sheath 3 in a one-to-one correspondence manner, the plurality of racks 5.2 are slidably disposed on the corresponding knife disk 2, the racks 5.2 are engaged with the gears 5.1 in a one-to-one correspondence manner, a locking groove 5.3 is disposed on each rack 5.2, the fixed guide bar 5.4 is fixedly connected to the fixed base 1 through an arc-shaped connecting bar 5.10, the sliding guide bar 5.5 is horizontally slidably connected to the fixed guide bar 5.4, the sliding portion 5.6 is vertically slidably disposed on the sliding guide bar 5.5 and is disposed between the two knife disks 2, a locking portion 5.7 is fixedly connected to the upper and the upper end and the lower end of the sliding portion 5.6 has a locking portion corresponding to the locking stroke of the corresponding knife sheath 3.7 in the sliding portion 5.6 In the joint groove 5.3 to and one make its below joint portion 5.7 joint to its below sword cover 3 corresponding joint groove 5.3, when each sword cover 3 was located the storage sword state, the blade disc 2 rotated, joint portion 5.7 can pass joint groove 5.3 smoothly, first drive unit 5.8 is used for driving the slip portion 5.6 and slides, first drive unit 5.8 sets up on the slip guide rail, second drive unit 5.9 is used for driving the slip guide bar 5.5 and slides, second drive unit 5.9 is preferred to be second pneumatic cylinder 5.81, second pneumatic cylinder 5.81 horizontal arrangement, the cylinder block fixed connection of second pneumatic cylinder 5.81 is on fixed guide bar 5.4, the hydraulic stem tip and the slip guide bar 5.5 fixed connection of second pneumatic cylinder 5.81. When a needed cutter moves to the position of the cutter head 2 facing the manipulator, the clamping groove 5.3 of the rack 5.2 corresponding to the cutter sleeve 3 of the cutter is aligned with the clamping part 5.7, the first driving unit 5.8 drives the sliding part 5.6 to be connected with the clamping part 5.7 to move vertically, the clamping part 5.7 can be clamped in the clamping groove 5.3, then the second driving unit 5.9 drives the sliding guide rod 5.5 to move horizontally, the sliding guide rod 5.5 can simultaneously drive the first driving unit 5.8, the sliding part 5.6 and the clamping part 5.7 to slide, the clamping part 5.7 drives the rack 5.2 clamped with the clamping part to slide, the rack 5.2 drives the gear 5.1 meshed with the rack to rotate, and the gear 5.1 drives the cutter sleeve 3 to rotate, so that the needed cutter can be moved to a loading and unloading position; when the use of the knife is finished, the second driving unit 5.9 is only needed to drive the sliding guide rod 5.5 to slide reversely, and the knife sleeve 3 and the knife at the assembling and disassembling position can be moved to the knife storing state through the transmission of the components.
As a further preferable technical solution in this embodiment, the first driving unit 5.8 includes a first hydraulic cylinder and a slide bar 5.82, the sliding portion 5.6 is provided with a chute 5.83, the slide bar 5.82 is slidably disposed in the chute 5.83, the first hydraulic cylinder seat is fixedly connected to the sliding portion 5.6 through a support rod 5.84, an end of the hydraulic rod of the first hydraulic cylinder is fixedly connected to the slide bar 5.82, and the first hydraulic cylinder drives the slide bar 5.82 to slide in the chute 5.83 so as to move the sliding portion 5.6 along the slide guide rod 5.5. Because the interval between two blade discs 2 is less, the unable vertical setting of first pneumatic cylinder, only can transversely arrange, consequently through cooperation between chute 5.83 and the round bar, first pneumatic cylinder can make sliding part 5.6 slide from top to bottom to make joint portion 5.7 on the sliding part 5.6 can the joint to the draw-in groove of top or below.
As another preferable technical solution of this embodiment, referring to fig. 17-19, the second driving mechanism 5 includes a plurality of gears 5.1, a plurality of racks 5.2, a fixed guide bar 5.4, a sliding portion 5.6 and a second driving unit 5.9, wherein the plurality of gears 5.1 are coaxially connected to the rotating shaft of each knife pouch 3 in a one-to-one correspondence manner, the plurality of racks 5.2 are slidably disposed on the corresponding knife tray 2, each rack 5.2 is engaged with each gear 5.1 in a one-to-one correspondence manner, each rack 5.2 is respectively provided with a clamping groove 5.3, the fixed guide bar 5.4 is fixedly connected to the fixed base 1 through a connecting rod 5.10, the sliding portion 5.6 is fixedly connected with a clamping portion 5.7, the clamping portion 5.7 is located between two knife trays 2, the upper and lower ends of the clamping portion 5.7 can be respectively in clamping fit with the corresponding clamping grooves 5.3 of the knife pouches 3 above and below, when each knife pouch 3 is in the knife pouch storage state, the knife tray 2 rotates, and the clamping portion 5.7 can smoothly pass through the clamping grooves 5.3 above and below, the second driving unit 5.9 is used for driving the sliding part 5.6 to slide. In this technical solution, after the first driving mechanism 4 drives the desired tool and the tool sheath 3 of the tool to rotate to the orientation facing the manipulator, the clamping portion 5.7 is inevitably clamped in the clamping groove 5.3 corresponding to the desired tool, taking the case that the desired tool is located on the upper tool pan 2, at this time, it should be ensured that the tool sheath 3 on the lower tool pan 2 is dislocated from the tool sheath 3 on the upper tool pan 2, i.e. the top of the clamping portion 5.7 is clamped in the clamping groove 5.3 corresponding to the desired tool, and the bottom of the clamping portion 5.7 is not clamped in the clamping groove 5.3 corresponding to any tool sheath 3 in the lower tool pan 2, if the upper and lower ends of the clamping portion 5.7 are clamped in the two clamping grooves 5.3, the lower tool pan 2 can be driven to rotate by the first driving mechanism 4 to separate the lower end of the clamping portion 5.7 from the clamping groove 5.3 below, and then the second driving unit 5.9 drives the sliding portion 5.6 to slide horizontally, the sliding part 5.6 drives the rack 5.2 clamped with the clamping part 5.7 to move through the clamping part 5.7, and the rack 5.2 drives the gear 5.1 engaged with the rack to rotate, so that the knife sleeve 3 rotates to a loading and unloading position.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (8)
1. The utility model provides a digit control machine tool magazine which characterized in that includes:
fixing a foundation;
the two cutter heads are coaxially and rotatably arranged on the fixed foundation, a plurality of cutter sleeves distributed in an annular array are rotatably connected on the peripheral sides of the two cutter heads, and the cutter sleeves are used for clamping cutters;
the two cutter heads are provided with loading and unloading positions, and the two loading and unloading positions are both positioned at the central position between the two cutter heads so that the two loading and unloading positions are superposed;
still include a drive mechanism, a drive mechanism is used for driving respectively two the blade disc rotates, a drive mechanism includes:
the shaft lever is rotationally connected to the fixed foundation, and the two cutter heads are coaxially and rotationally arranged on the shaft lever;
the resistance piece is used for increasing the rotation resistance of the cutter head;
the two one-way transmission parts correspond to the two cutterheads one to one and can both be driven by the shaft lever to rotate, one-way transmission part can only drive the corresponding cutterhead to rotate forwards, and the other one-way transmission part can only drive the corresponding cutterhead to rotate backwards;
and the second servo motor is used for driving the shaft rod to rotate.
2. The tool magazine of the numerical control machine tool is characterized in that the tool sleeve comprises a rotating part and a clamping part which are connected, and the rotating part is rotatably connected with the cutter disc through a rotating shaft;
the clamping part comprises an inserting pipe fixedly connected to the rotating rod part;
a first annular groove is formed in the inner wall of the insertion pipe, a notch of the first annular groove is a necking, and a plurality of spheres distributed in an annular shape are movably arranged in the first annular groove;
a second annular groove communicated with the first annular groove is formed in the insertion pipe, an extrusion ring is arranged in the second annular groove in a sliding mode along the axial direction of the insertion pipe, and the inner wall surface of the extrusion ring is composed of a cylindrical surface and a conical surface;
and a first elastic unit is arranged in the second annular groove, and the deformation recovery process of the first elastic unit drives the compression ring to extrude the spheres to move towards the axis of the insertion pipe so that the spheres are clamped with the groove of the handle part of the cutter to clamp and fix the cutter.
3. The tool magazine of claim 1, wherein the first driving mechanism comprises two first servo motors, and the two first servo motors drive two cutter discs to rotate in a one-to-one correspondence manner.
4. The tool magazine of claim 1, wherein the one-way transmission comprises:
the first inclined plane blocks are fixedly connected to the corresponding cutter heads in an annular array;
the slip ring is connected to the shaft rod in a sliding mode along the axial direction of the shaft rod;
the second inclined plane blocks are arranged on the peripheral side of the slip ring in an annular array, and each first inclined plane block has a blocking position which is blocked with the second inclined plane block in the process of sliding along the slip ring;
the elastic force of the second elastic unit acts on each second inclined plane block to enable the second inclined planes to slide towards the blocking position;
the slip ring is driven by the rotation of the shaft rod to enable the first inclined plane blocks to rotate, when the slip ring is at the blocking position, the second inclined plane blocks rotate along the first direction to drive the first wedge blocks to rotate, and when the second wedge blocks rotate along the direction opposite to the first direction, the inclined planes of the second wedge blocks and the inclined planes of the first wedge blocks act to overcome the elastic force of the second elastic units and leave the blocking position to idle.
5. The tool magazine of claim 4, wherein a nut is threadedly connected to the shaft, the second elastic unit comprises a second spring, the second spring is sleeved on the shaft, and two ends of the second spring respectively abut against the sliding ring and the nut.
6. The tool magazine of claim 1, wherein the resistance element comprises:
the sleeve is rotationally connected with the shaft lever and fixedly connected to a fixed foundation;
the two first friction plates are fixedly connected to one sides of the two cutter heads in a one-to-one correspondence manner;
the two second friction plates are respectively connected to the sleeve in a sliding manner along the axial direction of the sleeve;
and the third elastic unit elastically drives the two second friction plates to be abutted with the two first friction plates in a one-to-one corresponding manner.
7. The tool magazine of claim 1, further comprising a second driving mechanism for driving a tool sleeve to rotate to a loading and unloading position.
8. The tool magazine of claim 7, wherein the second drive mechanism comprises:
the gears are coaxially connected to the rotating shafts of the cutter sleeves in a one-to-one correspondence manner;
the gear rack is arranged on the cutter head in a sliding mode, the gear racks are meshed with the gear wheels in a one-to-one correspondence mode, and each gear rack is provided with a clamping groove;
the fixed guide rod is fixedly connected with the fixed foundation through a connecting rod;
the sliding guide rod is horizontally and slidably connected to the fixed guide rod;
the sliding part is vertically and slidably arranged on the sliding guide rod and is positioned between the two cutter heads, the upper end and the lower end of the sliding part are respectively and fixedly connected with a clamping part, and the sliding stroke of the sliding part is provided with a clamping groove which enables the clamping part above the sliding part to be clamped into the cutter sleeve above the sliding part and a clamping groove which enables the clamping part below the sliding part to be clamped into the cutter sleeve below the sliding part;
a first driving unit for driving the sliding part to slide;
and the second driving unit is used for driving the sliding guide rod to slide.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110726717.4A CN113319630B (en) | 2021-06-29 | 2021-06-29 | Tool magazine of numerical control machine tool |
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| CN202110726717.4A CN113319630B (en) | 2021-06-29 | 2021-06-29 | Tool magazine of numerical control machine tool |
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| CN113319630B true CN113319630B (en) | 2021-11-30 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378617A (en) * | 2021-12-21 | 2022-04-22 | 王一涵 | CNC tool magazine |
| CN114952371A (en) * | 2022-07-14 | 2022-08-30 | 毛国伟 | Rotating tool apron with retractable and replaceable tool |
| CN115990774B (en) * | 2023-03-22 | 2023-05-23 | 潍坊胜利石化机械有限公司 | Improved tool magazine |
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| WO2000066317A1 (en) * | 1999-05-03 | 2000-11-09 | Alfing Kessler Sondermaschinen Gmbh | Two-spindle machine tool with a double disc magazine |
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| CN113319630A (en) | 2021-08-31 |
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