CN112338599B - Clamp for milling machine to process key groove of shaft part - Google Patents
Clamp for milling machine to process key groove of shaft part Download PDFInfo
- Publication number
- CN112338599B CN112338599B CN202011332416.5A CN202011332416A CN112338599B CN 112338599 B CN112338599 B CN 112338599B CN 202011332416 A CN202011332416 A CN 202011332416A CN 112338599 B CN112338599 B CN 112338599B
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- mounting frame
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- mounting
- clamping
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- 238000003801 milling Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 34
- 230000007704 transition Effects 0.000 claims description 14
- 238000003754 machining Methods 0.000 claims description 9
- 239000013585 weight reducing agent Substances 0.000 claims 1
- 230000033001 locomotion Effects 0.000 description 15
- 239000002699 waste material Substances 0.000 description 15
- 238000005520 cutting process Methods 0.000 description 10
- 230000003028 elevating effect Effects 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
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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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/30—Milling straight grooves, e.g. keyways
-
- 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
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
-
- 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
- B23Q3/18—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for positioning only
-
- 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
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/04—Work clamping means using fluid means or a vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention belongs to the field of machine tool fixtures, in particular to a fixture for milling machine to process key grooves of shaft parts, which comprises a positioning plate; the positioning plate is provided with three sets of part supporters, two sets of clamping devices, a set of fixed center hole positioners and a set of movable center hole positioners; according to the invention, the positions of the part supporters and the clamping devices on the positioning plate can be adjusted, so that the three sets of part supporters can support different positions of shaft parts, the two sets of clamping devices can clamp different positions of the shaft parts, so that the shaft parts can be conveniently supported and clamped at proper positions, the supported shaft parts can be clamped and positioned by the fixed center hole positioner and the movable center hole positioner, and the shaft parts can be rapidly clamped, positioned and locked, and the supporters, the clamping devices, the fixed center hole positioner and the movable center hole positioner are movably connected on the positioning plate, so that the relative positions of all components can be conveniently adjusted, and the clamping device is applicable to different shaft parts.
Description
Technical Field
The invention belongs to the field of machine tool fixtures, and particularly relates to a fixture for milling machine machining of key grooves of shaft parts.
Background
The milling machine is a machine tool with wide application, and can be used for processing planes, grooves, tooth-dividing parts, spiral surfaces and various curved surfaces; in addition, the device can also be used for processing the surface and inner hole of the revolving body, cutting off the working and the like; when the milling machine works, a workpiece is clamped on accessories such as a clamp and the like, the milling cutter rotates to main motion, and the workpiece can obtain a required processing surface by assisting with the feeding motion of a workbench or a milling head; the milling machine has higher productivity because of the multi-edge intermittent cutting; in brief, a milling machine may be a machine tool that mills, drills, and bores a workpiece.
The axle type part carries out milling groove operation and carries out on the milling machine mostly, before milling groove operation, need carry out the clamping fixed to the axle type part, the anchor clamps that are used for clamping axle type part this moment can arrange the use place, current axle type part anchor clamps clamping is more loaded down with trivial details, need the workman to carry out many times operation to anchor clamps and just can accomplish the part clamping, clamping precision has also been reduced when reducing work efficiency, and current anchor clamps commonality is poor, often a section anchor clamps can only be used for the clamping of a section part, also be unfavorable for the management work of enterprise to anchor clamps when increasing anchor clamps preparation volume, the operation requirement of modern processing to anchor clamps is not satisfied.
Disclosure of Invention
In order to make up the defects of the prior art, the invention provides a fixture for processing a key groove of a shaft part by a milling machine. The clamping device is mainly used for solving the problems that in the prior art, a worker can clamp the part after operating the clamp for multiple times, the working efficiency is reduced, the clamping precision is reduced, and meanwhile, the problem of poor universality of the clamp in the prior art is also solved.
The technical scheme adopted for solving the technical problems is as follows: the invention provides a fixture for milling machine processing shaft part key grooves, which comprises a positioning plate; the positioning plate is provided with three sets of part supporters, two sets of clamping devices, a set of fixed center hole positioners and a set of movable center hole positioners; the middle parts of the three parts supporters are arranged on the positioning plate; the two sets of clamping devices are respectively arranged at two sides of the three sets of part supporters; the fixed center hole positioner is arranged at one end of the positioning plate; the movable center hole positioner is arranged at the other end of the positioning plate; two positioning grooves are symmetrically formed in the top surface of the positioning plate; two sets of locating plate guide blocks are symmetrically arranged on the bottom surface of the locating plate; the cross sections of the positioning groove and the positioning plate guide block are all arranged to be right trapezoid.
During operation, two sets of locating plate guide blocks arranged on the bottom surface of the locating plate are connected with a milling machine operation platform, and the three sets of part supporters, two sets of clamping devices, a set of fixed center hole positioners and a set of movable center hole positioners are fixed on the locating plate by two locating grooves arranged on the locating plate, and the positions of the part supporters and the clamping devices on the locating plate are adjustable, so that the three sets of part supporters can support different positions of shaft parts, the two sets of clamping devices can clamp different positions of the shaft parts, the shaft parts can be supported and clamped at proper positions conveniently, the shaft parts after being supported can be clamped and positioned by the fixed center hole positioners and the movable center hole positioners, the shaft parts can be clamped and locked quickly, the supporters, the clamping devices, the fixed center hole positioners and the movable center hole positioners are movably connected on the locating plate, the relative positions of all components can be adjusted conveniently, and the device is applicable to different shaft parts.
Preferably, the part support comprises a first mounting frame, a screw rod, a moving block, a connecting plate, a lifter, a support block and a hand wheel; rectangular openings are formed in the bottoms of the two side faces of the first mounting frame; two first mounting frame guide blocks are symmetrically arranged on the bottom surface of the first mounting frame; the section of the first installation frame guide block is arranged into a right trapezoid, and the two sets of first installation frame guide blocks are in clearance fit with the two positioning grooves arranged on the positioning plate; two screw rod mounting holes are symmetrically formed in two ends of the first mounting frame, and screw rods are inserted into the two screw rod mounting holes; the screw rod is connected with the first mounting frame through two sets of bearing seats; the bearing seat is fixedly connected with the first mounting frame through a screw; a set of left-handed threads and a set of right-handed threads are symmetrically arranged on the screw rod, and one end of the screw rod is fixed with the hand wheel through a bolt; the left-handed thread and the right-handed thread are respectively connected with a set of moving blocks; the middle part of the moving block is embedded with a threaded sleeve, and the top end of the moving block is provided with a first rotating shaft; the thread sleeve is connected with the screw rod in a threaded connection mode; the outer wall of the moving block is in clearance fit with the inner part of the first mounting frame; the two sets of moving blocks are connected with the lifter through the two sets of connecting plates; two sets of rotating shaft mounting holes are formed in two ends of the connecting plate, and a weight reducing groove is formed in the middle of the connecting plate; the lifter top surface is provided with one set of supporting block, the cross section of supporting block sets up to the V type.
Preferably, the lifter comprises a lifting plate, a second rotating shaft and a guide sleeve; two symmetrical sides of the lifting plate are provided with two second rotating shafts, and the other two symmetrical sides of the lifting plate are embedded with two guide sleeves.
Preferably, two sets of rotating shaft mounting holes on the connecting plate are respectively connected with the first rotating shaft on the moving block and the second rotating shaft on the lifter; the guide sleeve is sleeved on the guide rod; the bottom of the guide rod is connected with the side wall of the first installation frame through a transition plate.
During the use, drive the screw rod rotation through rotatory hand wheel with first mounting bracket and locating plate through the bolt, the screw rod takes place relative movement with two sets of movable blocks, and then drive two sets of movable blocks and do synchronous reverse separation removal or synchronous reverse being close to the removal, two sets of movable blocks drive the riser through the transmission of two sets of connecting plates and do elevating movement, and the stability that the riser goes up and down is guaranteed through guide bar and uide bushing, the riser drives the supporting shoe and is elevating movement, the screw rod can realize the auto-lock with two sets of movable blocks, through the height of adjusting the supporting shoe in the three sets of part supporters, make supporting shoe and the outer circle contact of axle, can support to the different diameter excircles of axle, realize the abundant support of axle type part, improve the supporting stability, when carrying out the centre gripping location to same type axle type part, only need support the regulation to first piece axle type part, can be applicable to the support of remaining same type part, make things convenient for fixed centre bore locator and movable centre bore locator carry out the quick clamp positioning to the part, the opening that the bottom of first both sides face of mounting bracket set up, be favorable to the discharge of cutting waste material, effectively prevent that the inside from causing the clearance phenomenon that is unfavorable for piling up to take place.
Preferably, the clamping device comprises a second mounting frame, a mounting tripod, a clamping cylinder and a clamping block; rectangular openings are formed in the bottoms of the two side faces of the second mounting frame, and two second mounting frame guide blocks are symmetrically arranged on the bottom face of the second mounting frame; the section of the second installation frame guide block is arranged into a right trapezoid, and the two sets of second installation frame guide blocks are in clearance fit with the two positioning grooves arranged on the positioning plate; the top edges of the two symmetrical long side surfaces of the second mounting frame are arranged in a V shape; two sets of adjusting grooves are symmetrically formed in the other two side surfaces of the second mounting frame; the adjusting groove is connected with the installation tripod through a bolt; the top surface of the installation tripod is fixed with a set of clamping cylinders through bolts; the clamping block is fixed at the end part of the clamping cylinder.
Preferably, the section of the clamping block is V-shaped, and two friction plates are symmetrically arranged on the V-shaped inner wall of the clamping block; the friction plate is made of rubber.
During the use, drive the screw rod rotation through rotatory hand wheel with first mounting bracket and locating plate through the bolt, the screw rod takes place relative movement with two sets of movable blocks, and then drive two sets of movable blocks and do synchronous reverse separation removal or synchronous reverse being close to the removal, two sets of movable blocks drive the riser through the transmission of two sets of connecting plates and do elevating movement, and the stability that the riser goes up and down is guaranteed through guide bar and uide bushing, the riser drives the supporting shoe and is elevating movement, the screw rod can realize the auto-lock with two sets of movable blocks, through the height of adjusting the supporting shoe in the three sets of part supporters, make supporting shoe and the outer circle contact of axle, can support to the different diameter excircles of axle, realize the abundant support of axle type part, improve the supporting stability, when carrying out the centre gripping location to same type axle type part, only need support the regulation to first piece axle type part, can be applicable to the support of remaining same type part, make things convenient for fixed centre bore locator and movable centre bore locator carry out the quick clamp positioning to the part, the opening that the bottom of first both sides face of mounting bracket set up, be favorable to the discharge of cutting waste material, effectively prevent that the inside from causing the clearance phenomenon that is unfavorable for piling up to take place.
Preferably, the fixed center hole locator comprises a third mounting frame, a guide cylinder, a fixed center and a locking handle; rectangular openings are formed in the bottoms of the two side faces of the third mounting frame, and two third mounting frame guide blocks are symmetrically arranged on the bottom face of the third mounting frame; the section of the third installation frame guide block is arranged into a right trapezoid, and the two sets of the third installation frame guide blocks are in clearance fit with the two positioning grooves arranged on the positioning plate; two circular guide cylinder mounting holes are symmetrically formed in two side faces of the third mounting frame; the guide cylinder is fixed in the guide cylinder mounting hole; the fixed center is sleeved in the guide cylinder; a limiting flange is arranged in the middle of the fixed center; and a locking plate is fixed on the top surface of the third mounting frame.
Preferably, a locking transition hole is formed in the middle of the top surface of the guide cylinder; the middle part of the locking plate is provided with a locking threaded hole; the locking threaded hole is opposite to the locking transition hole, and the locking handle is arranged in the locking threaded hole; the locking handle passes through the locking transition hole on the guide cylinder and is tightly propped against the fixed top.
The third mounting frame and the locating plate are locked relatively through the bolts, the fixed center is sleeved inside the guide cylinder, the limiting flange arranged on the fixed center is used for limiting, the fixed center and the third mounting frame are fixed in a jacking mode through the locking handle, the fixed center is prevented from rotating, the fixed center is kept fixed all the time in the clamping process, the phenomenon that shaft parts are separated in the machining process due to unstable center is avoided, the rectangular opening arranged at the bottom of two sides of the third mounting frame is beneficial to discharging cutting waste, and waste accumulation in the third mounting frame is effectively prevented from being unfavorable for cleaning.
Preferably, the movable center hole positioner comprises a fourth mounting frame, a positioning cylinder, a guide seat and a movable center; rectangular openings are formed in the bottoms of two side faces of the fourth mounting frame, and two fourth mounting frame guide blocks are symmetrically arranged on the bottom face of the fourth mounting frame; the section of the fourth installation frame guide block is arranged into a right trapezoid, and the two sets of the fourth installation frame guide blocks are in clearance fit with the two positioning grooves arranged on the positioning plate; a guide seat mounting hole is formed in the middle of the front face of the fourth mounting frame; a set of guide seats are arranged in the guide seat mounting holes; the movable center is sleeved in the guide seat; the tail part of the movable center is provided with a connecting threaded hole; the connecting threaded hole is connected with the top of the positioning cylinder in a threaded connection mode; the tail part of the positioning cylinder is fixedly connected with the fourth mounting frame.
The fourth installation frame and the locating plate are locked relatively through the bolts, the guide seat is fixed with the fourth installation frame, the movable center is sleeved in the guide seat and connected with the locating cylinder, the movable center is driven by the locating cylinder to do telescopic motion, when the movable center stretches out, the movable center is matched with the fixed center to fasten the top of the shaft part, after machining is completed, the movable center is retracted, release of the shaft part is achieved, workers can quickly take and put the part conveniently, and the working efficiency of acceleration is improved when the clamping precision and the clamping speed are improved.
The beneficial effects of the invention are as follows:
1. According to the invention, the two sets of locating plate guide blocks arranged on the bottom surface of the locating plate are connected with the milling machine operation platform, the three sets of part supporters, the two sets of clamping devices, the one set of fixed center hole positioners and the one set of movable center hole positioners are fixed on the locating plate by the two locating grooves arranged on the locating plate, and the positions of the part supporters and the clamping devices on the locating plate are adjustable, so that the three sets of part supporters can support different positions of shaft parts, the two sets of clamping devices can clamp different positions of the shaft parts, the support and clamping of the different shaft parts are convenient at proper positions, the supported shaft parts can be clamped and positioned by the fixed center hole positioners and the movable center hole positioners, the fast clamping and positioning locking of the shaft parts can be realized, the supporters, the clamping devices, the fixed center hole positioners and the movable center hole positioners are movably connected on the locating plate, the relative positions of all components can be conveniently adjusted, and the device is applicable to different shaft parts.
2. According to the invention, the screw rod is driven to rotate through the rotating hand wheel, the screw rod and the two sets of moving blocks are relatively moved, so that the two sets of moving blocks are driven to synchronously and reversely separate and move or synchronously and reversely approach and move, the two sets of moving blocks drive the lifter to do lifting movement through the transmission of the two sets of connecting plates, the lifting stability of the lifter is ensured through the guide rod and the guide sleeve, the lifter drives the supporting block to do lifting movement, the screw rod and the two sets of moving blocks can realize self-locking, the supporting blocks are contacted with the excircles of the shafts through adjusting the heights of the supporting blocks in the three sets of part supporters, the excircles of different diameters of the shafts can be supported, the adequate support of the shaft parts is realized, the supporting stability is improved, the rectangular openings arranged at the bottoms of the two side surfaces of the first installation frame are favorable for discharging cutting waste materials, and the phenomenon that the waste materials are accumulated in the first installation frame to cause cleaning is unfavorable is effectively prevented.
3. According to the invention, the relative positions between the mounting tripod and the second mounting frame are regulated, so that the clamping cylinder and the clamping block part arranged on the mounting tripod are right against the central axis of the shaft part, the clamping is ensured to have no relative dislocation, the clamping precision is improved, the contact quality between the V-shaped clamping block and the shaft part is ensured by utilizing the V-shaped clamping block and the two friction plates arranged on the inner wall of the V-shaped clamping block, the shaft part is prevented from axially rotating, the stability of the milling key groove operation is further ensured, the rectangular opening arranged at the bottoms of the two side surfaces of the second mounting frame is beneficial to discharging cutting waste materials, the phenomenon that the waste materials are accumulated in the second mounting frame and are unfavorable for cleaning is effectively prevented, the long side surfaces of the two symmetry sides of the second mounting frame are arranged in a V shape, and the phenomenon that the second mounting frame and the shaft part interfere is effectively avoided.
4. According to the invention, the fixed center is sleeved in the guide cylinder, the fixed center is limited by the limiting flange arranged on the fixed center, the fixed center is fixedly propped against the third mounting frame by the locking handle, the fixed center is prevented from rotating, the fixed center is ensured to be always kept fixed in the clamping process, the phenomenon that the shaft parts are separated in the processing process due to unstable center is avoided, the rectangular opening arranged at the bottom of the two side surfaces of the third mounting frame is beneficial to discharging cutting waste, and the phenomenon that the waste is accumulated in the third mounting frame and is unfavorable for cleaning is effectively prevented.
5. According to the invention, three sets of part supporters and two sets of clamping devices can be reasonably distributed on the positioning plate according to different lengths and outer diameters of shaft parts, so that the shaft parts are conveniently supported and clamped, the fixed center hole positioner and the movable center hole positioner are only required to be placed on the three sets of part supporters, the shaft parts are automatically positioned, the positioned shaft parts are clamped and fixed through the two sets of clamping devices, the complete locking of the shaft parts is realized, the key slot milling operation is immediately carried out, the repeated adjustment is not required when the same product is processed, the clamping speed is high, the clamping precision of the shaft parts is high, the structures can be relatively adjusted, the clamping device is applicable to the processing of different parts, the problem that in the prior art, the clamping of the parts can be completed only by carrying out multiple operations on the clamp, the working efficiency is reduced, the clamping precision is also reduced, the problem that the universality of the clamp is poor in the prior art is solved, the universality of the clamp is improved, and the enterprise management strength is lightened.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of the overall structure of a fixture for milling machine machining shaft part keyways in the invention;
FIG. 2 is a schematic view of the structure of the locating plate according to the present invention;
FIG. 3 is a schematic view of the overall structure of the parts supporter of the present invention;
FIG. 4 is a schematic view of the structure of the connecting plate of the present invention;
FIG. 5 is a schematic view of the structure of the support block of the present invention;
FIG. 6 is a schematic diagram of a moving block according to the present invention;
FIG. 7 is a schematic view of the structure of the screw in the present invention;
FIG. 8 is a schematic view of a lifter according to the present invention;
FIG. 9 is a schematic view of the structure of the first mounting frame of the present invention;
FIG. 10 is a schematic view of the overall structure of the clamp of the present invention;
FIG. 11 is a schematic view of the structure of the clamping block of the present invention;
FIG. 12 is a schematic view of the structure of the mounting tripod of the present invention;
FIG. 13 is a schematic view of the structure of the second mount of the present invention;
FIG. 14 is a schematic view of the overall structure of the fixed center hole locator of the present invention;
FIG. 15 is a schematic view of the structure of the guide cylinder of the present invention;
FIG. 16 is a schematic view of the structure of the third mount of the present invention;
FIG. 17 is a schematic view of the structure of the stationary center of the present invention;
FIG. 18 is a schematic view of the overall structure of the mobile center hole locator of the present invention;
FIG. 19 is a schematic view of the fourth mount of the present invention;
FIG. 20 is a schematic view of the movable center of the present invention;
In the figure: the positioning plate 1, the positioning groove 11, the positioning plate guide block 12, the part supporter 2, the connecting plate 21, the weight reducing groove 211, the rotating shaft mounting hole 212, the supporting block 22, the moving block 23, the first rotating shaft 231, the threaded sleeve 232, the hand wheel 24, the bearing seat 25, the screw rod 26, the left-handed screw 261, the right-handed screw 262, the lifter 27, the lifting plate 271, the second rotating shaft 272, the guide sleeve 273, the first mounting bracket 28, the guide rod 281, the screw rod mounting hole 282, the transition plate 283, the first mounting bracket guide block 284, the clamp 3, the clamping cylinder 31, the clamping block 32, the friction plate 321, the mounting tripod 33, the mounting threaded hole 331, the second mounting bracket 34, the second mounting bracket guide block 341, the adjusting groove 342, the fixed center hole locator 4, the guide cylinder 41, the locking transition hole 411, the locking handle 42, the third mounting bracket 43, the guide cylinder mounting hole 431, the locking threaded hole 432, the locking plate 433, the third mounting bracket guide block 434, the fixed center 44, the limiting flange 441, the movable center hole locator 5, the positioning cylinder 51, the fourth 52, the guide seat mounting bracket mounting hole 521, the fourth guide seat mounting bracket 53, the fourth guide seat mounting bracket 53, the movable center guide seat 53, and the movable center guide seat 53.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
As shown in fig. 1 and 2, a fixture for milling machine processing shaft part key groove comprises a positioning plate 1; the positioning plate 1 is provided with three sets of part supporters 2, two sets of clamping devices 3, a set of fixed center hole positioners 4 and a set of movable center hole positioners 5; the three parts supporters 2 are arranged in the middle of the positioning plate 1; the two sets of clamping devices 3 are respectively arranged at two sides of the three sets of part supporters 2; the fixed center hole locator 4 is arranged at one end of the locating plate 1; the movable center hole positioner 5 is arranged at the other end of the positioning plate 1; two positioning grooves 11 are symmetrically formed in the top surface of the positioning plate 1; two sets of positioning plate guide blocks 12 are symmetrically arranged on the bottom surface of the positioning plate 1; the cross sections of the positioning groove 11 and the positioning plate guide block 12 are all arranged in a right trapezoid shape.
During operation, two sets of locating plate guide blocks 12 arranged on the bottom surface of the locating plate 1 are connected with a milling machine operation platform, and two locating grooves 11 arranged on the locating plate 1 are utilized to fix three sets of part supporters 2, two sets of clamping devices 3, one set of fixed center hole positioners 4 and one set of movable center hole positioners 5 on the locating plate 1, and the positions of the part supporters 2 and the clamping devices 3 on the locating plate 1 are adjustable, so that the three sets of part supporters 2 can support different positions of shaft parts, the two sets of clamping devices 3 can clamp different positions of the shaft parts, so that different shaft parts can be supported and clamped at proper positions conveniently, the shaft parts after being supported can be clamped and positioned by the fixed center hole positioners 4 and the movable center hole positioners 5, the shaft parts can be rapidly clamped, positioned and locked, the supporters 2, the clamping devices 3, the fixed center hole positioners 4 and the movable center hole positioners 5 are movably connected on the locating plate 1, the relative positions of all components can be conveniently adjusted, and the device is applicable to different shaft parts.
As shown in fig. 3 to 9, the part supporter 2 includes a first mounting bracket 28, a screw 26, a moving block 23, a connecting plate 21, a lifter 27, a supporting block 22, and a hand wheel 24; rectangular openings are formed in the bottoms of the two side surfaces of the first mounting frame 28; two first mounting frame guide blocks 284 are symmetrically arranged on the bottom surface of the first mounting frame 28; the cross section of the first installation frame guide block 284 is arranged into a right trapezoid, and the two sets of first installation frame guide blocks 284 are in clearance fit with the two positioning grooves 11 arranged on the positioning plate 1; two screw rod mounting holes 282 are symmetrically formed in two ends of the first mounting frame 28, and screw rods 26 are inserted into the two screw rod mounting holes 282; the screw rod 26 is connected with the first mounting frame 28 through two sets of bearing seats 25; the bearing seat 25 is fixedly connected with the first mounting frame 28 through screws; a set of left-handed threads 261 and a set of right-handed threads 262 are symmetrically arranged on the screw rod 26, and one end of the screw rod 26 is fixed with the hand wheel 24 through bolts; the left-handed thread 261 and the right-handed thread 262 are respectively connected with a set of moving blocks 23; a threaded sleeve 232 is embedded in the middle of the moving block 23, and a first rotating shaft 231 is arranged at the top end of the moving block; the thread sleeve 232 is connected with the screw rod 26 in a threaded connection mode; the outer wall of the moving block 23 is in clearance fit with the inner part of the first mounting frame 28; the two sets of the moving blocks 23 are connected with the lifter 27 through the two sets of the connecting plates 21; two sets of rotating shaft mounting holes 212 are formed in two ends of the connecting plate 21, and a weight reducing groove 211 is formed in the middle of the connecting plate 21; the top surface of the lifter 27 is provided with a set of supporting blocks 22, and the cross section of each supporting block 22 is arranged in a V shape.
The lifter 27 includes a lifter plate 271, a second rotation shaft 272, and a guide sleeve 273; two symmetrical sides of the lifting plate 271 are provided with two second rotating shafts 272, and two sets of guide sleeves 273 are embedded in the other two symmetrical sides of the lifting plate 271.
Two sets of rotating shaft mounting holes 212 on the connecting plate 21 are respectively connected with the first rotating shaft 231 on the moving block 23 and the second rotating shaft 272 on the lifter 27; the guide sleeve 273 is sleeved on the guide rod 281; the bottom of the guide rod 281 is connected to the side wall of the first mounting rack 28 through a transition plate 283.
During the use, through the relative locking of bolt with first mounting bracket 28 and locating plate 1, drive lead screw 26 through rotatory hand wheel 24 and rotate, lead screw 26 takes place relative movement with two sets of movable blocks 23, and then drive two sets of movable blocks 23 and do synchronous reverse separation removal or synchronous reverse being close to the removal, two sets of movable blocks 23 drive riser 27 through the transmission of two sets of connecting plates 21 and do elevating movement, and the stability that riser 27 goes up and down is guaranteed through guide bar 281 and uide bushing 273, riser 27 drives supporting shoe 22 and is elevating movement, the auto-lock can be realized with two sets of movable blocks 23 to the lead screw 26, through the height of supporting shoe 22 in three sets of part supporters 2 for supporting shoe 22 and the contact of axle excircle can support to the different diameter excircles of axle, realize the abundant support of axle class part, improve the supporting stability, when carrying out the centre gripping location to same version axle class part, only need support the regulation to first piece axle class part, can be applicable to the rest same version axle class part, the support of section part can be satisfied, make things convenient for fixed centre bore locator 4 and movable centre bore locator 5 to carry out quick clamp face to the piece and carry out the height of supporting bracket, the inside is unfavorable for the clearance phenomenon of the setting up the first mounting bracket 28 to take place, the inside is unfavorable for the clearance of the waste material to be discharged at the bottom of the setting up 28.
As shown in fig. 10 to 13, the clamp 3 includes a second mounting bracket 34, a mounting tripod 33, a clamping cylinder 31, and a clamping block 32; rectangular openings are formed in the bottoms of the two side faces of the second mounting frame 34, and two second mounting frame guide blocks 341 are symmetrically arranged on the bottom face of the second mounting frame 34; the section of the second installation frame guide block 341 is arranged in a right trapezoid, and two sets of second installation frame guide blocks 341 are in clearance fit with two positioning grooves 11 arranged on the positioning plate 1; the top edges of two symmetrical long side surfaces of the second mounting frame 34 are arranged in a V shape; two sets of adjusting grooves 342 are symmetrically formed on the other two sides of the second mounting frame 34; the adjusting groove 342 is connected with the mounting tripod 33 through a bolt; the top surface of the installation tripod 33 is fixed with a set of clamping cylinders 31 through bolts; the clamping block 32 is fixed at the end of the clamping cylinder 31.
The section of the clamping block 32 is V-shaped, and two friction plates 321 are symmetrically arranged on the V-shaped inner wall of the clamping block 32; the friction plate 321 is made of rubber.
During the use, through the relative locking of bolt with second mounting bracket 34 and locating plate 1, through the relative position between installation tripod 33 and the second mounting bracket 34, make the centre axis of the positive axle type part in clamping cylinder 31 and clamping block 32 that set up on the installation tripod 33, guarantee that the centre gripping is not misplaced relatively, improve the clamping precision, and utilize the clamping block 32 that the V type set up and two friction discs 321 that its inner wall set up, guarantee the contact quality with axle type part, prevent that axle type part from taking place axial rotation, and then guaranteed the stability of keyseat operation, the rectangular opening of second mounting bracket 34 both sides face bottom setting is favorable to cutting the discharge of waste material, effectively prevent that the waste material from piling up and causing the phenomenon that is unfavorable for the clearance to take place in second mounting bracket 34 inside, the long side of second mounting bracket 34 bilateral symmetry, the topside sets up to the V type, effectively avoid second mounting bracket 34 and axle type part to take place the phenomenon of interference.
As shown in fig. 14 to 17, the fixed center hole locator 4 includes a third mounting bracket 43, a guide cylinder 41, a fixed center 44, and a locking handle 42; rectangular openings are formed in the bottoms of the two side surfaces of the third mounting frame 43, and two third mounting frame guide blocks 434 are symmetrically arranged on the bottom surface of the third mounting frame 43; the section of the third mounting frame guide block 434 is set to be right trapezoid, and two sets of the third mounting frame guide blocks 434 are in clearance fit with two positioning grooves 11 arranged on the positioning plate 1; two circular guide cylinder mounting holes 431 are symmetrically formed on two side surfaces of the third mounting frame 43; the guide cylinder 41 is fixed in the guide cylinder mounting hole 431; the fixed center 44 is sleeved in the guide cylinder 41; a limiting flange 441 is arranged in the middle of the fixed center 44; a locking plate 433 is fixed on the top surface of the third mounting frame 43.
A locking transition hole 411 is formed in the middle of the top surface of the guide cylinder 41; a locking threaded hole 432 is formed in the middle of the locking plate 433; the locking threaded hole 432 is arranged opposite to the locking transition hole 411, and the locking handle 42 is arranged in the locking threaded hole 432; the locking handle 42 passes through the locking transition hole 411 on the guide cylinder 41 to be tightly propped against the fixed center 44.
During the use, locking relatively with third mounting bracket 43 and locating plate 1 through the bolt, cup joint fixed top 44 inside guide cylinder 41 afterwards, and carry out spacingly through the spacing flange 441 that sets up on the fixed top 44, utilize locking handle 42 with fixed top 44 and the tight fixed of third mounting bracket 43 top, prevent that fixed top 44 from taking place to rotate, and guarantee that fixed top 44 remains stationary throughout in the centre gripping process, avoid taking place because the unstable phenomenon that causes shaft class part to take place to break away from in the course of working of top, the rectangle opening that sets up in third mounting bracket 43 both sides face bottom is favorable to cutting the discharge of waste material, effectively prevent that the waste material from piling up and causing the phenomenon that is unfavorable for the clearance to take place in the inside third mounting bracket 43.
As shown in fig. 18 to 20, the movable center hole locator 5 includes a fourth mounting frame 52, a locating cylinder 51, a guide seat 53 and a movable center 54; rectangular openings are formed in the bottoms of the two side faces of the fourth mounting frame 52, and two fourth mounting frame guide blocks 522 are symmetrically arranged on the bottom face of the fourth mounting frame 52; the section of the fourth installation frame guide block 522 is arranged in a right trapezoid shape, and the two sets of the fourth installation frame guide blocks 522 are in clearance fit with the two positioning grooves 11 arranged on the positioning plate 1; a guide seat mounting hole 521 is formed in the middle of the front surface of the fourth mounting frame 52; a set of guide seats 53 are installed in the guide seat installation holes 521; the movable center 54 is sleeved in the guide seat 53; the tail part of the movable center 54 is provided with a connecting threaded hole 541; the connecting threaded hole 541 is connected to the top of the positioning cylinder 51 by a threaded connection manner; the tail part of the positioning cylinder 51 is fixedly connected with the fourth mounting frame 52.
When the clamping device is used, the fourth mounting frame 52 and the positioning plate 1 are relatively locked through bolts, the guide seat 53 is fixed with the fourth mounting frame 52, the movable center 54 is sleeved in the guide seat 53 and connected with the positioning cylinder 51, the movable center 54 is driven by the positioning cylinder 51 to do telescopic motion, when the movable center 54 stretches out, the movable center 54 is matched with the fixed center 44 to fasten the top of the shaft part, after machining is finished, the movable center 54 is retracted, release of the shaft part is achieved, workers can conveniently and rapidly take and put the part, and the working efficiency is improved, and the clamping precision and the clamping speed are improved.
During operation, the three sets of parts supporters 2 and the two sets of clampers 3 are reasonably distributed on the positioning plate 1 according to the difference of the length and the outer diameter of the shaft parts, so that the shaft parts clamped for the first time are clamped manually by adjusting the fixed center hole positioner 4 and the movable center hole positioner 5, after the shaft parts are clamped, the screw rod 26 is driven to rotate by rotating the hand wheel 24 in the parts supporters 2, the screw rod 26 and the two sets of moving blocks 23 relatively move, the two sets of moving blocks 23 are driven to synchronously and reversely separate or synchronously and reversely move, the two sets of moving blocks 23 drive the lifter 27 to lift through the transmission of the two sets of connecting plates 21, the lifting stability of the lifter 27 is ensured through the guide rod 281 and the guide sleeve 273, the lifter 27 drives the supporting block 22 to lift, the screw rod 26 and the two sets of moving blocks 23 can realize self-locking, the support block 22 is contacted with the bottom of the excircle of the shaft part to support the shaft part, the three parts support device 2 and support the excircle of the three parts, the shaft part can be quickly placed in place while the contact quality is improved, the relative positions of the tripod 33 and the second mounting frame 34 are adjusted in the clamp 3, the central axes of the shaft part are aligned to the middle parts of the clamping cylinder 31 and the clamping block 32 which are arranged on the tripod 33, the clamping is ensured to have no relative dislocation, the clamping precision is improved, the contact quality with the shaft part is ensured by utilizing the V-shaped clamping block 32 and the two friction plates 321 arranged on the inner wall of the V-shaped clamping block, the shaft part is prevented from axially rotating, the stability of key slot milling operation is further ensured, after the positioning, the supporting and the clamping operation of the first shaft part are completed, in the subsequent batch processing process of the part, the shaft parts are only required to be placed on the three sets of parts supporters 2, the fixed center hole locator 4 and the movable center hole locator 5 are used for automatically locating the shaft parts, the shaft parts after locating are clamped and fixed through the two sets of clamps 3, complete locking of the shaft parts is achieved, key slot milling operation is carried out immediately, repeated adjustment is not needed when the same product is processed, clamping speed is high, clamping precision of the shaft parts is high, each structure can be adjusted relatively, the clamping device is applicable to processing of different parts, the problem that in the prior art, a worker can finish clamping the parts by operating a clamp for multiple times, clamping precision is reduced while working efficiency is reduced, meanwhile, the problem that in the prior art, clamp universality is poor is solved, and enterprise management strength is reduced.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (5)
1. A fixture for milling machine processing shaft part key groove comprises a positioning plate (1); the method is characterized in that: three sets of part supporters (2), two sets of clamping devices (3), a set of fixed center hole positioners (4) and a set of movable center hole positioners (5) are arranged on the positioning plate (1); the three parts supporters (2) are arranged at the middle part of the positioning plate (1); the two sets of clamping devices (3) are respectively arranged at two sides of the three sets of part supporters (2); the fixed center hole positioner (4) is arranged at one end of the positioning plate (1); the movable center hole positioner (5) is arranged at the other end of the positioning plate (1); two positioning grooves (11) are symmetrically formed in the top surface of the positioning plate (1); two sets of positioning plate guide blocks (12) are symmetrically arranged on the bottom surface of the positioning plate (1); the sections of the positioning groove (11) and the positioning plate guide block (12) are both arranged in a right trapezoid;
The part support (2) comprises a first mounting frame (28), a screw rod (26), a moving block (23), a connecting plate (21), a lifter (27), a support block (22) and a hand wheel (24); rectangular openings are formed in the bottoms of the two side faces of the first mounting frame (28); two first mounting frame guide blocks (284) are symmetrically arranged on the bottom surface of the first mounting frame (28); the section of the first installation frame guide block (284) is arranged into a right trapezoid, and the two sets of first installation frame guide blocks (284) are in clearance fit with two positioning grooves (11) arranged on the positioning plate (1); two screw rod mounting holes (282) are symmetrically formed in two ends of the first mounting frame (28), and screw rods (26) are inserted into the two screw rod mounting holes (282); the screw rod (26) is connected with the first mounting frame (28) through two sets of bearing seats (25); the bearing seat (25) is fixedly connected with the first mounting frame (28) through a screw; a set of left-handed threads (261) and a set of right-handed threads (262) are symmetrically arranged on the screw rod (26), and one end of the screw rod (26) is fixed with the hand wheel (24) through a bolt; the left-handed threads (261) and the right-handed threads (262) are respectively connected with a set of moving blocks (23); a thread sleeve (232) is embedded in the middle of the moving block (23), and a first rotating shaft (231) is arranged at the top end of the moving block; the thread sleeve (232) is connected with the screw rod (26) in a threaded connection mode; the outer wall of the moving block (23) is in clearance fit with the inside of the first mounting frame (28); the two sets of moving blocks (23) are connected with the lifter (27) through the two sets of connecting plates (21); two sets of rotating shaft mounting holes (212) are formed in two ends of the connecting plate (21), and a weight reduction groove (211) is formed in the middle of the connecting plate (21); the top surface of the lifter (27) is provided with a set of supporting blocks (22), and the section of each supporting block (22) is V-shaped;
The clamping device (3) comprises a second mounting frame (34), a mounting tripod (33), a clamping cylinder (31) and a clamping block (32); rectangular openings are formed in the bottoms of the two side faces of the second mounting frame (34), and two second mounting frame guide blocks (341) are symmetrically arranged on the bottom face of the second mounting frame (34); the section of the second installation frame guide block (341) is arranged in a right trapezoid shape, and the two sets of second installation frame guide blocks (341) are in clearance fit with the two positioning grooves (11) arranged on the positioning plate (1); the top edges of two symmetrical long side surfaces of the second mounting frame (34) are arranged in a V shape; two sets of adjusting grooves (342) are symmetrically formed in the other two side surfaces of the second mounting frame (34); the adjusting groove (342) is connected with the mounting tripod (33) through a bolt; the top surface of the installation tripod (33) is fixed with a set of clamping cylinders (31) through bolts; the end part of the clamping cylinder (31) is fixedly provided with the clamping block (32);
The fixed center hole locator (4) comprises a third mounting frame (43), a guide cylinder (41), a fixed center (44) and a locking handle (42); rectangular openings are formed in the bottoms of two side faces of the third mounting frame (43), and two third mounting frame guide blocks (434) are symmetrically arranged on the bottom face of the third mounting frame (43); the section of the third installation frame guide block (434) is arranged into a right trapezoid, and the two sets of the third installation frame guide blocks (434) are in clearance fit with the two positioning grooves (11) arranged on the positioning plate (1); two circular guide cylinder mounting holes (431) are symmetrically formed in two side faces of the third mounting frame (43); the guide cylinder (41) is fixed in the guide cylinder mounting hole (431); the guide cylinder (41) is sleeved with the fixed center (44); a limiting flange (441) is arranged in the middle of the fixed center (44); a locking plate (433) is fixed on the top surface of the third mounting frame (43);
The movable center hole positioner (5) comprises a fourth mounting frame (52), a positioning cylinder (51), a guide seat (53) and a movable center (54); rectangular openings are formed in the bottoms of two side faces of the fourth mounting frame (52), and two fourth mounting frame guide blocks (522) are symmetrically arranged on the bottom face of the fourth mounting frame (52); the section of the fourth installation frame guide block (522) is arranged in a right trapezoid shape, and the two sets of the fourth installation frame guide blocks (522) are in clearance fit with the two positioning grooves (11) arranged on the positioning plate (1); a guide seat mounting hole (521) is formed in the middle of the front surface of the fourth mounting frame (52); a set of guide seats (53) are arranged in the guide seat mounting holes (521); the movable center (54) is sleeved in the guide seat (53); the tail part of the movable center (54) is provided with a connecting threaded hole (541); the connecting threaded hole (541) is connected with the top of the positioning cylinder (51) in a threaded connection mode; the tail part of the positioning cylinder (51) is fixedly connected with the fourth mounting frame (52).
2. The fixture for milling machine machining shaft part keyways according to claim 1, wherein: the lifter (27) comprises a lifting plate (271), a second rotating shaft (272) and a guide sleeve (273); two second rotating shafts (272) are arranged on two symmetrical side edges of the lifting plate (271), and two guide sleeves (273) are embedded on the other two symmetrical side edges of the lifting plate (271).
3. The fixture for milling machine machining shaft part keyways according to claim 2, wherein: two sets of rotating shaft mounting holes (212) on the connecting plate (21) are respectively connected with the first rotating shaft (231) on the moving block (23) and the second rotating shaft (272) on the lifter (27); the guide sleeve (273) is sleeved on the guide rod (281); the bottom of the guide rod (281) is connected with the side wall of the first mounting frame (28) through a transition plate (283).
4. The fixture for milling machine machining shaft part keyways according to claim 1, wherein: the cross section of the clamping block (32) is V-shaped, and two friction plates (321) are symmetrically arranged on the V-shaped inner wall of the clamping block (32); the friction plate (321) is made of rubber.
5. The fixture for milling machine machining shaft part keyways according to claim 1, wherein: a locking transition hole (411) is formed in the middle of the top surface of the guide cylinder (41); a locking threaded hole (432) is formed in the middle of the locking plate (433); the locking threaded hole (432) is opposite to the locking transition hole (411), and the locking handle (42) is arranged in the locking threaded hole (432); the locking handle (42) passes through the locking transition hole (411) on the guide cylinder (41) to be tightly propped against the fixed center (44).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332416.5A CN112338599B (en) | 2020-11-24 | 2020-11-24 | Clamp for milling machine to process key groove of shaft part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011332416.5A CN112338599B (en) | 2020-11-24 | 2020-11-24 | Clamp for milling machine to process key groove of shaft part |
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| CN112338599A CN112338599A (en) | 2021-02-09 |
| CN112338599B true CN112338599B (en) | 2024-05-17 |
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| CN202011332416.5A Active CN112338599B (en) | 2020-11-24 | 2020-11-24 | Clamp for milling machine to process key groove of shaft part |
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| CN113400049A (en) * | 2021-05-31 | 2021-09-17 | 江苏大学 | Quick positioning and clamping device for multiple boss parts of long hole shaft |
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