CN108500876B - Tool clamp - Google Patents

Tool clamp Download PDF

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Publication number
CN108500876B
CN108500876B CN201810667877.4A CN201810667877A CN108500876B CN 108500876 B CN108500876 B CN 108500876B CN 201810667877 A CN201810667877 A CN 201810667877A CN 108500876 B CN108500876 B CN 108500876B
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CN
China
Prior art keywords
cushion block
cushion
lug
block
pressing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201810667877.4A
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Chinese (zh)
Other versions
CN108500876A (en
Inventor
钟璞
马晓明
颜建美
孙国庆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Vocational Institute of Textile and Garment
Original Assignee
Changzhou Vocational Institute of Textile and Garment
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Changzhou Vocational Institute of Textile and Garment filed Critical Changzhou Vocational Institute of Textile and Garment
Priority to CN201810667877.4A priority Critical patent/CN108500876B/en
Publication of CN108500876A publication Critical patent/CN108500876A/en
Application granted granted Critical
Publication of CN108500876B publication Critical patent/CN108500876B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q3/00Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02Devices 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
    • B23Q3/06Work-clamping means
    • B23Q3/08Work-clamping means other than mechanically-actuated
    • B23Q3/082Work-clamping means other than mechanically-actuated hydraulically actuated

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

The invention provides a fixture which is suitable for machining a motor disc of an automobile air conditioner vortex compressor and comprises a front machining fixture and a back machining fixture, wherein a bracket is arranged on a fixed bottom plate of the front machining fixture, a plurality of front machining components are fixedly connected in the bracket, each front machining component comprises a tensioning pin seat arranged above the bracket, an adjusting cushion block arranged on the inner bottom surface of the tensioning pin seat and a tensioning sleeve arranged above the adjusting cushion block, and the tensioning sleeve is connected with an oil cylinder. The tool clamp realizes one-key automatic clamping of workpieces by utilizing the pneumatic and hydraulic principles, is efficient and stable in clamping, solves the problem of low positioning precision of processing tools in the prior art, effectively ensures relevant form and position tolerances, is suitable for batch production and processing of the workpieces, remarkably improves the working efficiency and brings great economic benefits to enterprises.

Description

Tool clamp
Technical Field
The invention relates to the technical field of workpiece machining, in particular to a fixture for machining a motor disc of an automobile air conditioner scroll compressor.
Background
The movable disc of the vortex compressor of the automobile air conditioner is one of core components of the automobile air conditioner, the requirement on the positioning machining precision of the component is very high, and the front and back structures of the movable disc are quite different, so that the machining requirements on the front and back surfaces of the movable disc are often difficult to be met by a single set of machining tools at the same time. In the prior art, the types of tools for machining the movable disc are various, but the following defects generally exist: 1. the structural characteristics of the workpiece cannot be fully utilized, the workpiece clamping time is long, and the clamping difficulty is high; 2. the initial positioning stability is poor, the workpiece is unstable in the processing process, the positioning precision is poor, and the quality of the processed product cannot be ensured; 3. the machining process needs manual cooperation assistance, and the machining position is timely adjusted according to the workpiece machining condition, so that the production and machining efficiency is low, and the method is not suitable for batch operation.
Therefore, the movable disc processing tool with high automation degree, accurate positioning and convenient clamping is necessary to design aiming at the defects in the prior art, and is suitable for batch processing and stable in performance of processed finished products.
Disclosure of Invention
The invention aims to solve the problems of complicated fixture clamping, poor positioning precision and unstable product quality in the prior art and designs a movable disc machining fixture; the fixture can ensure stable clamping, solves the problem of low positioning precision of the existing fixture, is suitable for batch production, and is beneficial to improving the economic benefit of enterprises.
The specific real-time scheme is as follows: the utility model provides a frock clamp, is applicable to the processing of the motor dish of vehicle air conditioner scroll compressor, including openly processing frock and back processing frock, be equipped with the support on the PMKD of openly processing frock the positive processing subassembly of fixed connection several in the support, openly processing subassembly is including establishing the tight keyway that rises of support top, arrange in the regulation cushion of the inside bottom surface of tight keyway that rises and establish the tight cover that rises of regulation cushion top, the tight cover that rises is connected with the hydro-cylinder.
Further, two ends of a connecting bottom plate of the back processing tool are respectively provided with a first cushion block, a first rotary cylinder is arranged between the two first cushion blocks, a telescopic column is connected to the first rotary cylinder, and the upper end of the telescopic column is connected with a pressing device; a main locating pin is arranged in the middle of the upper surface of the cushion block I, a directional pin is arranged on the side of the main locating pin, and three lug cushion blocks are arranged on the upper surface of the cushion block I along the circumference at equal intervals; the compressing device comprises a connecting block fixedly connected with the top end of the telescopic column and a horizontal pressing plate support fixedly connected with two ends of the connecting block respectively, wherein a pressing plate is fixedly connected to the inner side of the pressing plate support, three lug pressing blocks are arranged on the inner side of the pressing plate along the circumferential surface at equal intervals, and the lug pressing blocks are correspondingly arranged above the lug cushion blocks.
Further, a plurality of groups of workpiece clamps are arranged on a tool bottom plate of the back processing tool, each workpiece clamp comprises a cylindrical second cushion block in the center and three compacting devices which are arranged around the outer side of the cushion block at equal intervals, and a base of each compacting device is fixedly connected with the tool bottom plate; a locating pin is arranged in the middle of the top surface of the second cushion block, auxiliary orientation pins are arranged on the lateral sides of the locating pin, and three lug support blocks are arranged on the upper surface of the second cushion block along the circumference at equal intervals; the compacting device comprises a second rotary cylinder arranged on the base and a telescopic rod fixedly connected to the top of the second rotary cylinder, wherein a pressing block is arranged on the telescopic rod, and the pressing block (30) is correspondingly arranged above the lug bearing block.
Further, a flow valve and a pressure reducing valve are arranged on the connecting pipeline of the tensioning sleeve and the oil cylinder.
Further, a directional screw is arranged on the side surface of the tensioning pin seat.
Further, a drainage groove is respectively arranged on the front side surface and the rear side surface of the tensioning pin seat.
The beneficial effects of the invention are as follows: the fixture disclosed by the invention realizes one-key automatic clamping of workpieces by utilizing the principles of pneumatic and hydraulic, is efficient and stable in clamping, solves the problem of low positioning precision of a processing fixture in the prior art, effectively ensures relevant form and position tolerance, is suitable for batch production and processing of the workpieces, remarkably improves the working efficiency, and brings great economic benefit to enterprises.
Drawings
FIG. 1 is a schematic front view of a motor disc for a scroll compressor of an automotive air conditioner in accordance with the present invention;
FIG. 2 is a schematic rear view of a motor disc for a scroll compressor of an automotive air conditioner in accordance with the teachings of the present invention;
fig. 3 is a schematic front view of a front processing tool according to a first embodiment of the present invention;
fig. 4 is a schematic top view of a front-side processing tool according to a first embodiment of the present invention;
fig. 5 is a schematic diagram of the overall structure of a front-side processing tool according to the first embodiment of the present invention;
fig. 6 is a schematic front view of a backside processing tool according to a first embodiment of the present invention;
FIG. 7 is a schematic top view of a backside processing tool according to a first embodiment of the present invention;
FIG. 8 is a schematic diagram of the overall structure of a backside processing tool according to the first embodiment of the present invention;
fig. 9 is a schematic front view of a back surface processing tool according to a second embodiment of the present invention;
FIG. 10 is a schematic top view of a backside processing tool according to a second embodiment of the present invention;
fig. 11 is a schematic diagram of the overall structure of a backside processing tool according to the second embodiment of the present invention.
The device comprises a 1-fixed bottom plate, a 2-support, a 3-front machining assembly, a 4-tensioning pin seat, a 5-adjusting cushion block, a 6-tensioning sleeve, a 7-oil cylinder, an 8-connecting bottom plate, a 9-cushion block I, a 10-rotary cylinder I, an 11-telescopic column, a 12-pressing device, a 13-main locating pin, a 14-orientation pin, a 15-connecting block, a 16-pressing plate support, a 17-pressing plate, an 18-pressing lug block, a 19-lug cushion block, a 20-tool bottom plate, a 21-workpiece clamp, a 22-cushion block II, a 23-pressing device, a 24-base, a 25-locating pin, a 26-auxiliary orientation pin, a 27-lug support block, a 28-rotary cylinder II, a 29-telescopic rod, a 30-pressing block, a 31-flow valve, a 32-pressure reducing valve, a 33-orientation screw, a 34-drainage groove, a 35-workpiece front, a 36-workpiece back, a 37-lug, a 38-groove and a 39-orientation pin hole.
Detailed Description
The structure, principles and operation of the present invention are further described in connection with the accompanying drawings 1-11 and the specific embodiments, but the scope of the invention is not limited thereto.
It should be noted that the embodiments provided by the present invention are only for effectively describing the technical features of the present invention, and the positioning words such as left side, right side, upper end, lower end and the like are only for better describing the embodiments of the present invention, and are not to be construed as limiting the technical scheme of the present invention.
Example 1
The structure of the movable disk is shown in fig. 1 and 2, three lugs 37 are arranged on the side surface of the movable disk of the conventional vortex compressor of the automobile air conditioner at equal intervals along the circumference, a groove 38 is arranged in the middle of the front surface of the movable disk, a directional pin hole 39 is also arranged on the side of the groove 38 on the front surface of the movable disk, and the back surface of the movable disk is of a spiral structure.
The embodiment discloses a frock clamp, is applicable to the processing of vehicle air conditioner scroll compressor motor dish, and its specific structure is as shown in fig. 3-8, and this frock clamp includes positive processing frock and back processing frock, be equipped with support 2 on the PMKD 1 of positive processing frock support 2 in two positive processing subassemblies 3 of fixed connection, positive processing subassembly 3 is including establishing the tight keyway 4 that rises of support 2 top, arrange in the regulation cushion 5 of the inside bottom surface of tight keyway 4 and establish the tight cover 6 that rises of adjusting cushion 5 top, tight cover 6 that rises is connected with hydro-cylinder 7, the regulation cushion 5 mainly plays the effect of a bearing to the work piece, and the specific height of regulation cushion 5 can make the adjustment of adaptability according to the height of work piece that needs to process.
The connecting pipeline of the tensioning sleeve 6 and the oil cylinder 7 is provided with a flow valve 31 and a pressure reducing valve 32, the tensioning degree of the tensioning sleeve 6 is controlled by controlling the oil inlet amount, and the stable clamping of a workpiece is ensured.
The side of the tensioning pin seat 4 is provided with the directional screw 33, as the bottom surface of the machined movable disc workpiece is spiral, the spiral lines cannot completely seal the outer circumference, the back of the workpiece is inclined to one side when being downwards placed on the adjusting cushion block 5, the directional screw 33 is arranged to inwards screw the directional screw 33 after the workpiece is placed on the adjusting cushion block 5, so that the workpiece can be prevented from inclining to one side by propping against the spiral gap at the bottom of the workpiece, the stability and the precision of positioning are ensured, the related form and position tolerance is effectively ensured, the machining process is rapid and efficient, and the batch machining of the workpiece can be realized.
A drain groove 34 is respectively arranged on the front side surface and the rear side surface of the tensioning pin seat 4.
Two ends of a connecting bottom plate 8 of the back processing tool are respectively provided with a first cushion block 9, a first rotary cylinder 10 is arranged between the two first cushion blocks 9, a telescopic column 11 is connected to the first rotary cylinder 10, and a pressing device 12 is connected to the upper end of the telescopic column 11.
The middle part of the upper surface of the cushion block I9 is provided with a main locating pin 13, the side of the main locating pin 13 is provided with a directional pin 14, and the upper surface of the cushion block I9 is provided with three lug cushion blocks 19 along the circumference and the outer edge at equal distance.
The compressing device 12 comprises a connecting block 15 fixedly connected with the top end of the telescopic column 11 and horizontal pressing plate supports 16 fixedly connected with the two ends of the connecting block 15 respectively, a pressing plate 17 is fixedly connected to the inner side of the pressing plate support 16, the pressing plate 17 and the pressing plate support 16 can be in pin connection or other forms of fixed connection, so long as the connection strength and stability can be guaranteed, three pressing lug blocks 18 are equidistantly arranged on the inner side of the pressing plate 17 along the inner circumferential surface, and the pressing lug blocks 18 are correspondingly arranged above the lug cushion blocks 19.
The back processing tool comprises the following specific operation steps: when the workpiece is not mounted, the axis of the pressing device 12 is perpendicular to the axis of the two cushion blocks 9, the back of the workpiece is firstly placed on the cushion block 9 upwards during processing, the main locating pin 13 is inserted into the groove 38, the orientation pin 14 is correspondingly inserted into the orientation pin hole 39, and at the moment, the lug 37 is correspondingly pressed above the lug cushion block 19; and then, the rotary cylinder I10 is started to enable the pressing device 12 connected to the rotary cylinder I to rotate by 90 degrees until the rotary cylinder I is parallel to the axis of the workpiece, then the telescopic column 11 is contracted and pressed down to enable the lug pressing block 18 to be tightly pressed on the lug 37 on the side face of the workpiece, so that the workpiece is stably positioned, the whole clamping process is simple and convenient, the positioning precision is high, the relevant form and position tolerance is effectively ensured, and the efficiency is greatly improved compared with that of a traditional tool.
Example 2
Referring to fig. 9-11, the back processing tool used in this embodiment is different from that of embodiment 1 in that the back processing tool used in this embodiment is a multi-station operation processing tool, and an array of workpiece holders 21 are disposed on a tool bottom plate 20 of the tool, where the workpiece holders 21 include a cylindrical second cushion block 22 in the center and three compressing devices 23 disposed equidistantly around the outer side of the second cushion block 22, and a base 24 of each compressing device 23 is fixedly connected with the tool bottom plate 20.
The middle part of the top surface of the cushion block II 22 is provided with a locating pin 25, the side of the locating pin 25 is provided with an auxiliary orientation pin 26, and the upper surface of the cushion block II 22 is provided with three lug bearing blocks 27 along the circumference and the outer edge at equal distance.
The compacting device 23 comprises a second rotary cylinder 28 arranged on the base 24 and a telescopic rod 29 fixedly connected to the top of the second rotary cylinder 28, wherein a pressing block 30 is arranged on the telescopic rod 29, and the pressing block 30 is correspondingly arranged above the lug support block 27.
The specific operation steps are as follows: when the workpiece is not mounted, the axis of the pressing block 30 at the upper end of the pressing device 23 is mutually perpendicular to the axis of the corresponding lug supporting block 27, the back of the workpiece is firstly placed on the cushion block II 22 upwards during processing, the positioning pin 25 is inserted into the groove 38, the auxiliary orientation pin 26 is correspondingly inserted into the orientation pin hole 39, and at the moment, the lug 37 is correspondingly pressed above the lug supporting block 27; and then, the rotary cylinder II 28 is started to enable the pressing device 23 connected to the rotary cylinder II to rotate by 90 degrees until the rotary cylinder II is parallel to the axis where the corresponding lug supporting block 27 is located, then the telescopic rod 29 is contracted and pressed down to enable the pressing block 30 to be pressed on the lug 37 on the side face of the workpiece, the pressing block 30 and the lug supporting block 27 clamp and position the workpiece on the upper surface and the lower surface of the workpiece, the workpiece cannot move randomly in the machining process, the positioning accuracy is high, and relevant form and position tolerance is effectively ensured.
The foregoing has outlined and described the basic principles, features, and advantages of the present invention. However, the foregoing is merely specific examples of the present invention, and the technical features of the present invention are not limited thereto, and any other embodiments that are derived by those skilled in the art without departing from the technical solution of the present invention are included in the scope of the present invention.

Claims (2)

1. The utility model provides a frock clamp, is suitable for the processing of vehicle air conditioner scroll compressor motor dish, its characterized in that includes positive processing frock and back processing frock, be equipped with support (2) on positive processing frock's fixed baseplate (1) support (2) internal fixation connects several positive processing subassembly (3), positive processing subassembly (3) are including establishing tight keyway (4) of rising above support (2), place in tight keyway (4) inside bottom surface's regulation cushion (5) and establish tight cover (6) that rises of regulation cushion (5) top, tight cover (6) that rises is connected with hydro-cylinder (7);
a flow valve (31) and a pressure reducing valve (32) are arranged on the connecting pipeline of the tensioning sleeve (6) and the oil cylinder (7);
a directional screw rod (33) is arranged on the side surface of the tensioning pin seat (4), and the directional screw rod (33) is screwed inwards to prop up a spiral notch position at the bottom of the movable disc;
two ends of a connecting bottom plate (8) of the back processing tool are respectively provided with a first cushion block (9), a first rotary cylinder (10) is arranged between the two first cushion blocks (9), a telescopic column (11) is connected to the first rotary cylinder (10), and the upper end of the telescopic column (11) is connected with a pressing device (12); a main locating pin (13) is arranged in the middle of the upper surface of the first cushion block (9), a directional pin (14) is arranged on the side of the main locating pin (13), and three lug cushion blocks (19) are arranged on the upper surface of the first cushion block (9) along the circumference at equal intervals along the outer edge; the compressing device (12) comprises a connecting block (15) fixedly connected with the top end of the telescopic column (11) and horizontal pressing plate supports (16) fixedly connected with the two ends of the connecting block (15) respectively, a pressing plate (17) is fixedly connected to the inner side of the pressing plate supports (16), three pressing lug blocks (18) are equidistantly arranged on the inner side of the pressing plate (17) along the circumferential surface, and the pressing lug blocks (18) are correspondingly arranged above the lug cushion blocks (19);
an array of workpiece clamps (21) are arranged on a tool bottom plate (20) of the back machining tool, each workpiece clamp (21) comprises a cylindrical second cushion block (22) in the center and three compacting devices (23) which are arranged around the outer side of the second cushion block (22) at equal intervals, and a base (24) of each compacting device (23) is fixedly connected with the tool bottom plate (20); a locating pin (25) is arranged in the middle of the top surface of the second cushion block (22), an auxiliary orientation pin (26) is arranged on the side of the locating pin (25), and three lug support blocks (27) are arranged on the upper surface of the second cushion block (22) along the circumference at equal intervals; the compressing device (23) comprises a second rotary cylinder (28) arranged on the base (24) and a telescopic rod (29) fixedly connected to the top of the second rotary cylinder (28), wherein a pressing block (30) is arranged on the telescopic rod (29), and the pressing block (30) is correspondingly arranged above the lug bearing block (27).
2. Tool clamp according to claim 1, characterized in that a drainage groove (34) is provided on the front and rear side of the tensioning pin seat (4), respectively.
CN201810667877.4A 2018-06-26 2018-06-26 Tool clamp Active CN108500876B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810667877.4A CN108500876B (en) 2018-06-26 2018-06-26 Tool clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810667877.4A CN108500876B (en) 2018-06-26 2018-06-26 Tool clamp

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Publication Number Publication Date
CN108500876A CN108500876A (en) 2018-09-07
CN108500876B true CN108500876B (en) 2023-12-22

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110883589A (en) * 2019-12-25 2020-03-17 北京北方车辆集团有限公司 Intelligent fixture for drilling and milling of main frame

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