CN215699890U - Machining clamp for thin-walled workpiece - Google Patents

Machining clamp for thin-walled workpiece Download PDF

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Publication number
CN215699890U
CN215699890U CN202121912477.9U CN202121912477U CN215699890U CN 215699890 U CN215699890 U CN 215699890U CN 202121912477 U CN202121912477 U CN 202121912477U CN 215699890 U CN215699890 U CN 215699890U
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China
Prior art keywords
connecting block
convex part
shell
pull rod
walled workpiece
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CN202121912477.9U
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Chinese (zh)
Inventor
周旭东
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Sichuan Leilian Auto Parts Co ltd
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Sichuan Leilian Auto Parts Co ltd
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Abstract

The utility model discloses a machining clamp of a thin-walled part, which comprises a shell and a main supporting column slidably arranged in the shell, wherein a supporting plate is movably sleeved on the main supporting column, a plurality of connecting rods are uniformly distributed on the supporting plate in the circumferential direction, a pull rod in sliding fit with the shell is arranged at the free end of each connecting rod, a pressing claw assembly in floating connection is arranged at the top of the pull rod, which extends out of the shell, the pressing claw assembly is hinged with the top of the shell, and a power device is connected to the bottom of the main supporting column. The utility model solves the problems that the clamping force of the existing clamp for the thin-wall part is not uniform, and the part is easy to deform in the machining process.

Description

Machining clamp for thin-walled workpiece
Technical Field
The utility model relates to the technical field of clamps, in particular to a machining clamp for a thin-wall part.
Background
At present, three-melon clamping is generally adopted for processing thin-wall parts, and the influence on the processing of the thin-wall parts in the clamping process is reduced by adjusting proper clamping force. However, because the thickness of the thin-wall part is very low and the whole area is large, the clamping force is difficult to grasp by each clamping jaw through adjusting the clamp, so that the part is easy to deform in the machining process, and the machined flatness is difficult to guarantee, therefore, the effective clamping clamp plays a key role in the thin-wall part machining.
Therefore, the skilled person is dedicated to develop a thin-wall workpiece machining fixture.
SUMMERY OF THE UTILITY MODEL
In view of the defects in the prior art, the utility model discloses a thin-wall part machining clamp, and aims to solve the technical problems that the clamping force of the existing thin-wall part clamp is uneven, and a part is easy to deform in the machining process.
In order to achieve the purpose, the utility model provides a machining clamp for a thin-wall part, which comprises a shell and a main support column slidably mounted in the shell, wherein a support plate is movably sleeved on the main support column, a plurality of circumferentially and uniformly distributed connecting rods are fixedly arranged on the support plate, a pull rod in sliding fit with the shell is mounted at the free end of each connecting rod, a floating-connected pressing claw assembly is arranged at the top of the pull rod, which extends out of the shell, and is hinged with the top of the shell, and a power device is connected to the bottom of the main support column.
Preferably, the pressing claw assembly comprises a pressing plate, a first connecting block and a second connecting block, the first connecting block is in a delta shape, and the first connecting block is provided with a first convex part, a second convex part and a third convex part; the first convex part is hinged with the top of the pull rod, the second convex part is hinged with one end of the second connecting block, the other end of the second connecting block is hinged with the shell, and the third convex part is hinged with the pressing plate; the pressing plate is provided with a threaded through hole along the radial direction of the pull rod, a spring and an adjusting nut are installed in the threaded through hole, one end of the spring abuts against the upper surface of the first convex portion, and the other end of the spring abuts against the adjusting nut.
Preferably, the first convex part is provided with a groove matched with the top of the pull rod, and the press plate is provided with an installation cavity matched with the third convex part; the number of the second connecting blocks is two, the connecting lug is fixedly arranged on the shell, one ends of the two second connecting blocks are symmetrically arranged on two sides of the second convex part, and the other ends of the two second connecting blocks are symmetrically hinged on two sides of the connecting lug.
Preferably, the main tributary dagger is last to be fixed to be equipped with axial central line and the bellied sphere support ring that makes progress, the middle part of backup pad be equipped with sphere support ring complex sphere groove, be equipped with on the main tributary dagger and be close to the stop nut of backup pad, be equipped with the clearance between stop nut and the backup pad.
Preferably, the top and the bottom of the shell are both fixedly provided with connectors which are slidably connected with the main supporting columns.
Preferably, a placing table is fixedly arranged at the top of the shell.
Preferably, the inside of main tributary dagger is equipped with the shaft hole that runs through, fixed mounting has the pulling force axle in the shaft hole, the bottom of pulling force axle with power device connects.
Preferably, the number of the connecting rods, the pull rods and the pressing claw assemblies is 3.
The utility model has the beneficial effects that:
through the design of two floating connections, the main support column is driven to slide upwards or downwards under the action of the power device in the clamping process so as to clamp or loosen a part; and the floating connection between the main support column and the support plate can enable each clamping jaw assembly to be adjusted along with the size floating of the part. Simultaneously, the pressure claw subassembly also is connection for floating, to the part that surface quality differs, can adjust the tight dynamics of clamp of pressure claw subassembly according to the roughness on surface to it is inhomogeneous to avoid anchor clamps clamping-force, makes the part produce the problem of warping in the course of working.
Drawings
FIG. 1 is a schematic view of the overall internal structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the utility model except for the housing;
FIG. 3 is a schematic view of the overall structure of the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
FIG. 5 is a schematic top view of the present invention;
FIG. 6 is a schematic sectional view taken along line B in FIG. 5;
fig. 7 is a partially enlarged schematic view of C in fig. 6.
In the above drawings: 1. a housing; 11. a connector; 12. a placing table; 2 main supporting columns; 21. a support plate; 22. a connecting rod; 23. a pull rod; 24. a spherical support ring; 25. a limit nut; 26. a shaft hole; 3. a pressing claw assembly; 31. pressing a plate; 311. a spring; 312. adjusting the nut; 32. a first connection block; 321. a first convex portion; 322. a second convex portion; 323. a third convex portion; 33. a second connecting block; 34. and connecting the bumps.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples, wherein the terms "upper", "lower", "left", "right", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, the utility model provides a processing clamp for a thin-wall part, which comprises a shell 1 and a main support column slidably mounted in the shell 1, wherein the main support column is provided with a support plate 2 in a floating manner; 21, supporting the main supporting column of the plate 2; a plurality of connecting rods 22 which are uniformly distributed in the circumferential direction are fixedly arranged on the main supporting column 21, a pull rod 23 which is in sliding fit with the shell 1 is installed at the free end of each connecting rod 22, a pressing claw component 3 which is connected in a floating mode is arranged at the top of the pull rod 23 extending out of the shell 1, the pressing claw component 3 is hinged to the top of the shell 1, and a power device is connected to the bottom of the main supporting column and can be a cylinder, a hydraulic cylinder and other power devices.
In the embodiment, through the design of two floating connections, in the process of clamping, under the action of the power device, the main support column is driven to slide upwards or downwards so as to clamp or loosen a part; and, the main support column and the support plate 2; 21, so that each clamping jaw assembly 3 can be adjusted along with the size floating of the part. Simultaneously, pressing claw subassembly 3 also for floating the connection, to the part that surface quality differs, can adjust the clamping force degree of pressing claw subassembly 3 according to the roughness on surface to it is inhomogeneous to avoid anchor clamps clamping-force, makes the part produce the problem of warping in the course of working.
As shown in fig. 4 and 7, the pressing claw assembly 3 includes a pressing plate 31, a first connecting block 32 and a second connecting block 33, the first connecting block 32 is in a delta shape, and the first connecting block 32 is provided with a first protrusion 321, a second protrusion 322 and a third protrusion 323; the first convex part 321 is hinged with the top of the pull rod 23, the second convex part 322 is hinged with one end of the second connecting block 33, the other end of the second connecting block 33 is hinged with the shell 1, and the third convex part 323 is hinged with the pressing plate 31; the pressure plate 31 is provided with a threaded through hole along the radial direction of the pull rod 23, a spring 311 and an adjusting nut 312 are installed in the threaded through hole, one end of the spring 311 abuts against the upper surface of the first convex portion 321, and the other end of the spring 311 abuts against the adjusting nut 312. In addition, the first protrusion 321 is provided with a groove matched with the top of the pull rod 23, and the press plate 31 is provided with a mounting cavity matched with the third protrusion 323; the quantity of second connecting block 33 is two, and fixed being equipped with on casing 1 connects lug 34, and the one end symmetric arrangement of two second connecting blocks 33 is in the both sides of second convex part 322, and the other end symmetric articulation of two second connecting blocks 33 is in the both sides of connecting lug 34. In addition, a spherical support ring 24 which is coaxial with the axial center line and protrudes upwards is fixedly arranged on the main support column, and the main support column of the support plate 2 is arranged; the middle part of the support plate 21 is provided with a spherical groove matched with the spherical support ring 24, and the main support column is provided with a main support column close to the support plate 2; 21, a limit nut 25, the limit nut 25 and the main support column of the support plate 2; 21 are provided with gaps, and the top and the bottom of the shell 1 are both fixedly provided with connectors 11 which are connected with the main supporting columns in a sliding way.
In this embodiment, the support plate 2 on the main support post supports the post when the part is clamped; 21 moves up and down along with the size of the workpiece, the moving main support column drives the pressing claw assembly 3 to float up and down, and the pressing plate 31 rotates around each hinge point under the pulling of the pull rod 23, so that the part is loosened or pressed. Meanwhile, the elasticity of the spring 311 can be adjusted by adjusting the limit nut 25 to adjust the clamping force of the pressure plate 31. The problem that the clamping force is too large to crush the thin-walled part or the clamping force does not influence the processing quality is solved.
As shown in fig. 1 and 3, a placing table 12 is fixedly provided on the top of the housing 1 for placing a part to be processed. As shown in fig. 6, a through shaft hole 26 is provided inside the main support column, a tension shaft is fixedly installed in the shaft hole 26, and a power device hydraulic cylinder is connected to the bottom of the tension shaft. The number of the connecting rods 22, the pull rods 23 and the pressing claw assemblies 3 is 3 so as to balance the clamping force.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (8)

1. The utility model provides a processing anchor clamps of thin wall spare, its characterized in that, includes casing (1) and slidable mounting casing (1) inside main tributary dagger (2), main tributary dagger (2) come up the floating sleeve and are equipped with backup pad (21), fixed a plurality of connecting rods (22) that are equipped with the circumference equipartition on backup pad (21), every the free end of connecting rod (22) all install with casing (1) sliding fit's pull rod (23), the top that pull rod (23) stretched out casing (1) is equipped with pressure claw subassembly (3) of connection of floating, it is articulated mutually with the top of casing (1) to press claw subassembly (3), the bottom of main tributary dagger (2) is connected with power device.
2. A thin walled workpiece machining fixture as claimed in claim 1 wherein:
the pressing claw assembly (3) comprises a pressing plate (31), a first connecting block (32) and a second connecting block (33), the first connecting block (32) is in a delta shape, and the first connecting block (32) is provided with a first convex part (321), a second convex part (322) and a third convex part (323); the first convex part (321) is hinged with the top of the pull rod (23), the second convex part (322) is hinged with one end of the second connecting block (33), the other end of the second connecting block (33) is hinged with the shell (1), and the third convex part (323) is hinged with the pressing plate (31); the pressing plate (31) is provided with a threaded through hole along the radial direction of the pull rod (23), a spring (311) and an adjusting nut (312) are installed in the threaded through hole, one end of the spring (311) is abutted to the upper surface of the first convex portion (321), and the other end of the spring (311) is abutted to the adjusting nut (312).
3. A thin walled workpiece machining fixture as claimed in claim 2 wherein:
the first convex part (321) is provided with a groove matched with the top of the pull rod (23), and the pressure plate (31) is provided with an installation cavity matched with the third convex part (323); the quantity of second connecting block (33) is two, fixed being equipped with on casing (1) and connecting lug (34), the one end symmetric arrangement of two second connecting block (33) in the both sides of second convex part (322), the other end symmetric articulation of two second connecting block (33) in the both sides of connecting lug (34).
4. A thin walled workpiece machining fixture as claimed in claim 1 wherein:
the supporting device is characterized in that a coaxial spherical supporting ring (24) which is convex upwards and is provided with an axial central line is fixedly arranged on the main supporting column (2), the middle of the supporting plate (21) is provided with a spherical groove matched with the spherical supporting ring (24), a limit nut (25) close to the supporting plate (21) is arranged on the main supporting column (2), and a gap is arranged between the limit nut (25) and the supporting plate (21).
5. A thin walled workpiece machining fixture as claimed in claim 1 wherein:
the top and the bottom of the shell (1) are both fixedly provided with a connector (11) which is connected with the main supporting column (2) in a sliding manner.
6. A thin walled workpiece as claimed in claim 5 wherein:
a placing table (12) is fixedly arranged at the top of the shell (1).
7. A thin walled workpiece machining fixture as claimed in claim 1 wherein:
the inside of main tributary dagger (2) is equipped with shaft hole (26) that run through, fixed mounting has the pulling force axle in shaft hole (26), the bottom of pulling force axle with power device connects.
8. A thin walled workpiece machining fixture as claimed in claim 1 wherein:
the number of the connecting rods (22), the pull rods (23) and the pressing claw assemblies (3) is 3.
CN202121912477.9U 2021-08-16 2021-08-16 Machining clamp for thin-walled workpiece Active CN215699890U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121912477.9U CN215699890U (en) 2021-08-16 2021-08-16 Machining clamp for thin-walled workpiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121912477.9U CN215699890U (en) 2021-08-16 2021-08-16 Machining clamp for thin-walled workpiece

Publications (1)

Publication Number Publication Date
CN215699890U true CN215699890U (en) 2022-02-01

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ID=79996510

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121912477.9U Active CN215699890U (en) 2021-08-16 2021-08-16 Machining clamp for thin-walled workpiece

Country Status (1)

Country Link
CN (1) CN215699890U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115284041A (en) * 2022-07-29 2022-11-04 中信戴卡股份有限公司 Special flexible clamping device for wheel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115284041A (en) * 2022-07-29 2022-11-04 中信戴卡股份有限公司 Special flexible clamping device for wheel
CN115284041B (en) * 2022-07-29 2023-11-07 中信戴卡股份有限公司 Special flexible clamping device for wheels

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