CN221291004U

CN221291004U - Combined clamp for machining special-shaped parts

Info

Publication number: CN221291004U
Application number: CN202323214692.3U
Authority: CN
Inventors: 金琪
Original assignee: Zhenjiang Weihao Machinery Co ltd
Current assignee: Zhenjiang Weihao Machinery Co ltd
Filing date: 2023-11-28
Publication date: 2024-07-09
Anticipated expiration: 2033-11-28

Abstract

A combined clamp for processing a special-shaped piece comprises a bottom plate, a plurality of clamping structures and a plurality of supporting structures, wherein the clamping structures and the supporting structures are arranged on the bottom plate; the clamping structure comprises a clamping base, a driving device arranged in the clamping base, a lifting rod which penetrates through the upper end surface of the clamping base and stretches upwards, a clamping block arranged on the lifting rod, a supporting rod which penetrates through the upper end surface of the clamping base and stretches upwards, and a clamping part arranged on the supporting rod, wherein the driving device is connected with the clamping block; the clamping block and the clamping part are matched to clamp a workpiece to be machined; the support structure comprises a support base and a support part arranged at the upper end of the support base, and the support part is abutted with the lower end face of the workpiece to be processed to realize the support of the workpiece to be processed; the clamping structure and the supporting structure are detachably arranged on the bottom plate. The clamping structure and the supporting structure which are detachably combined and installed are used for realizing universal convenient clamping and fixing of the special-shaped workpiece.

Description

Combined clamp for machining special-shaped parts

Technical Field

The utility model belongs to the field of sheet metal machining, and particularly relates to a combined clamp for machining a special-shaped piece.

Background

The existing clamping jig is used for fixing, supporting and positioning workpieces in the milling and stamping process in the sheet metal machining process, and can comprise a clamp, a supporting structure, a positioning element and the like, and the jig is custom designed according to the shape and the size of the workpieces. The jig is beneficial to improving the production efficiency, ensuring the precision and stability of the workpiece and guaranteeing the safety of operators. The jig is typically integrated with automation equipment, including robots, sensors, and control systems, to implement an automated production process.

If a special clamping jig is adopted in a sample link before mass production, the manufacturing period is long, and the node requirements of a trial production stage and a small-batch trial production stage cannot be met; modification after product testing would involve modification or remanufacturing of the jig, resulting in increased company costs; the processing of different products requires the manufacture of corresponding jigs, which also results in increased costs.

Meanwhile, the existing combined clamp is fixed on an operating platform or a bottom plate by bolts, is very complicated to detach and move, and cannot be quickly adjusted and adapted when facing special-shaped or different specifications of workpieces to be processed.

Disclosure of utility model

The utility model aims to provide a combined clamp for processing a special-shaped piece, which aims to solve the technical problem that a clamping jig can be commonly used for processing workpieces to be processed with different sizes and specifications in the production process.

In order to achieve the above purpose, the utility model provides a combined clamp for processing a special-shaped piece, which comprises the following specific technical scheme:

The combined clamp for processing the special-shaped piece comprises a bottom plate, a plurality of clamping structures and a plurality of supporting structures, wherein the clamping structures and the supporting structures are arranged on the bottom plate;

the clamping structure comprises a clamping base, a driving device arranged in the clamping base, a lifting rod connected with the driving device and penetrating through the upper end face of the clamping base to extend upwards, a clamping block arranged on the lifting rod, a supporting rod connected with the driving device and penetrating through the upper end face of the clamping base to extend upwards, and a clamping part arranged on the supporting rod; the clamping block and the clamping part are matched to clamp a workpiece to be machined;

The supporting structure comprises a supporting base and a supporting part arranged at the upper end of the supporting base, and the supporting part is abutted with the lower end face of the workpiece to be processed to support the workpiece to be processed;

the bottom plate is provided with a plurality of slots for installing the clamping structure and the supporting structure; the slot is matched with the lower end surfaces of the clamping base and the supporting base;

The clamping base is characterized in that the lower part of the side face of the clamping base is provided with outwards-popped clamping teeth, the inner side wall of the slot is provided with clamping grooves corresponding to the clamping teeth, the clamping teeth are retracted when entering the slot, and pop out after entering the clamping grooves, so that the clamping structure is installed on the bottom plate.

As a further improvement of the utility model, the lower part of the side surface of the support base is provided with the support latch which pops outwards, the inner side wall of the slot is provided with the clamping groove corresponding to the support latch, the support latch is retracted when entering the slot, pops out after entering the clamping groove, and the installation of the support structure on the bottom plate is realized.

As a further improvement of the utility model, the clamping structure comprises at least one fixed clamping structure fixedly connected with the bottom plate, and the clamping block of the fixed clamping structure is provided with a positioning block for positioning the workpiece to be processed.

As a further improvement of the present utility model, the driving device includes a lifting driving part and a rotation driving part; the lifting driving part is connected with the lifting rod to realize the lifting of the clamping block; the rotary driving part is connected with the supporting rod to realize the rotation of the clamping part.

As a further improvement of the utility model, the side surface of the clamping base is provided with a clamping installation block which is elastically protruded outwards, the clamping installation block is connected with the clamping latch inside the clamping base, and the clamping latch is retracted by pressing down the clamping installation block, so that the detachable installation of the clamping structure on the bottom plate is realized;

The side of the support base is provided with a support installation block which protrudes outwards and elastically, the support installation block is connected with the support latch inside the support base, and the support latch is retracted by pressing the support installation block, so that the support structure is detachably installed on the bottom plate.

As a further improvement of the utility model, when the lifting rod is fully retracted, the upper end face of the clamping block is flush with the upper end face of the supporting part.

As a further improvement of the utility model, in order to adapt to workpieces to be machined with uneven thickness, the clamp further comprises a plurality of supporting blocks for heightening the supporting structure, the lower end faces of the supporting blocks are provided with supporting installation holes matched with the supporting parts, the upper end faces of the supporting blocks are provided with heightening supporting parts consistent with the supporting parts, the supporting installation holes are sleeved into the supporting parts, and the heightening supporting parts are abutted with the lower end faces of the workpieces to be machined to support the workpieces.

As a further improvement of the utility model, in order to better adapt to workpieces to be machined with different thicknesses and uneven thicknesses, the clamping part is adjustably connected with the supporting rod, and the clamping part moves up and down on the supporting rod to adjust the clamping height.

As a further improvement of the utility model, in order to realize more convenient installation, the protruding part of the clamping latch relative to the clamping base is in a downward inclined plane shape, and when the clamping base is inserted into the slot, the clamping latch is abutted with the inner wall of the slot, so that the clamping latch is retracted;

The protruding part of the supporting latch relative to the supporting base is in a downward inclined plane shape, and when the supporting base is inserted into the slot, the supporting latch is abutted with the inner wall of the slot, so that the supporting latch is retracted.

The beneficial effects are that:

Through set up the slot on the bottom plate, clamping structure and bearing structure install in the slot, realize that adjustable treat the machined part and realize the centre gripping fixed, can realize better centre gripping fixed to the dysmorphism piece of different specifications through clamping structure and bearing structure's combination.

The fixture is convenient to assemble and adjust, can be detachably assembled and customized, can better adapt to more product specifications in the production stage of the sample, has lower trial-and-error cost, can continuously adjust in the production process to realize the best effect, and lays a solid foundation for subsequent mass production. The convenient adjustment mode greatly improves the production efficiency, greatly adapts the effect and greatly reduces the production cost.

Drawings

FIG. 1 is a schematic view of a combined clamp for processing a special-shaped piece;

FIG. 2 is a schematic view of a combined fixture for processing a special-shaped piece according to the present utility model;

FIG. 3 is a schematic view of a clamping structure and a support structure of the present utility model;

FIG. 4 is a cross-sectional view of the clamping structure and support structure of the present utility model after installation;

The figure indicates: 100. a bottom plate; 110. a slot; 111. a clamping groove; 200. a clamping structure; 210. clamping a base; 211. clamping the latch; 212. clamping the mounting block; 220. a lifting rod; 230. a clamping block; 240. a support rod; 250. a clamping part; 260. fixing the clamping structure; 261. a positioning block; 300. a support structure; 310. a support base; 311. supporting the latch; 312. supporting the mounting block; 320. a support part; 400. a support block; 410. an elevation support part; 500. and (5) processing a workpiece.

Detailed Description

The present utility model will be further described in detail with reference to the following examples and drawings for the purpose of enhancing the understanding of the present utility model, which examples are provided for the purpose of illustrating the present utility model only and are not to be construed as limiting the scope of the present utility model.

Implementation example:

As shown in fig. 1-2, a sectional fixture for forming a profile includes a base plate 100 fixed to a console, a clamping structure 200 and a supporting structure 300 distributed on the base plate 100. The clamping structure 200 positions and secures the workpiece 500 at the edge and the support structure 300 provides a force-receiving support point underneath the workpiece 500.

A large number of slots 110 are densely and regularly distributed on the bottom plate 100, the size of each slot 110 is matched with the lower end surfaces of the clamping base 210 and the supporting base 310, the inner wall of each slot 110 is provided with a concave clamping groove 111, the positions of the clamping grooves 111 are matched with the clamping teeth on the side surfaces of the clamping base 210 and the supporting base 310, and the clamping teeth enter the clamping grooves 111 to complete the installation and fixation of the clamping structure 200 and the supporting structure 300 on the bottom plate 100.

As shown in fig. 3, the clamping structure 200 is detachably connected with the bottom plate 100 through the clamping base 210, and is connected with different slots 110 to realize clamping and fixing of workpieces to be machined with different sizes. The clamping base 210 is internally provided with a driving device, which is divided into a lifting driving part and a rotating driving part, and the driving device can be pneumatic, hydraulic, electric driving and other driving devices capable of realizing lifting and rotating. The lifting rod 220 connected with the lifting driving part extends out of the upper end face of the driving base 210, the clamping block 230 is arranged at the upper end of the lifting rod 220, the supporting rod 240 connected with the rotary driving part extends out of the upper end face of the driving base 210, the clamping part 250 is arranged on the supporting rod 240, the lifting driving part drives the lifting rod 220 to drive the clamping block 230 to lift, and the rotary driving part drives the clamping part 250 to rotate and the clamping block 230 to clamp a workpiece to be machined in a matched mode. In this embodiment, the clamping portion 250 is connected to the support rod 240 through threads, and is fixed and adjusted in position on the support rod 240 through rotation. The driving devices of all the clamping structures 200 are uniformly driven, so that synchronous clamping operation is realized.

The clamping structure 200 at the left lower part of the bottom plate 100 is fixedly connected with the bottom plate 100, the fixed clamping structure 260 is used as an initial positioning point when the workpiece 500 to be processed is placed, and the upper end surface of the clamping block of the fixed clamping structure 260 is provided with a positioning block 261, so that the positioning when the workpiece to be processed is placed is better realized.

As shown in fig. 4, the clamping base 200 is symmetrically provided with clamping teeth 211 on both sides, the vertical section of the clamping teeth 211 is a right triangle, the inclined surface protrudes downwards, a clamping installation block 212 is arranged above the clamping teeth 211, the clamping teeth 211 are abutted with springs in side slots of the clamping base 210, the outer sides of the clamping teeth are extruded by the springs to protrude from the sides of the clamping base 210, the clamping installation block 212 is connected with the clamping teeth 211 in the clamping base 210, and the clamping teeth 211 extrude the springs to retract into the side slots of the clamping base while extruding the clamping installation block 212. During installation, the clamping latch 211 abuts against the side wall of the slot or presses the clamping installation block, so that the clamping latch 211 is retracted, the clamping latch 211 pops up in the clamping slot 111 after entering the slot 110, and the installation of the clamping base 210 in the slot 110 is completed.

The supporting structure 300 comprises a supporting base 310 and a supporting portion 320, the supporting portion 320 is of a cylindrical structure with the upper end face of the supporting base 310 protruding upwards, the upper end face of the supporting portion 320 is abutted to the lower end of a workpiece to be machined, and supporting stress of the workpiece to be machined in the machining process is guaranteed. The structure of the support latches 311 and support mounting blocks 312 on the sides of the support structure 300 and the mounting are identical to the clamping structure 200.

The height of the individual clamping portions 250 needs to be adjusted and the support structure 300 is increased while the thickness of the different portions is different for the processing of the profile, and the horizontal heights of the portions are not uniform. The support block 400 is required to be mounted at the upper end of the support part 320, the shape of the support block 400 is consistent with that of the support structure 300, the lower end face is provided with a support mounting hole, the support mounting hole is matched with the shape of the support part 320, the upper end face of the support block 400 is provided with a heightened support part 410, the heightened support part 410 is consistent with the shape of the support part 320, and the heightened support part 410 is abutted against the lower end face of the workpiece 500 instead of the support part 320. In the face of some to-be-machined parts 500 with larger height drop, a plurality of support blocks 400 with different height sizes can be stacked to realize more adaptive support on different height positions.

In use, the clamping structure 200 and the supporting structure 300 are mounted on the base plate 100, the clamping part 250 is screwed out from the upper part of the clamping block 230 by the rotation driving part, the clamping height is adjusted by lifting the clamping block 230 if necessary, the horizontal height of the clamping part 250 is adjusted, and the height of the supporting structure 300 is adjusted by placing the supporting block 400.

Positioning and placing of the workpiece 500 are achieved through the positioning block 261 on the fixed clamping structure 260, the workpiece 500 is placed on the upper end surfaces of the clamping block 230 and the supporting portion 240, and the clamping portion 250 is driven to rotate to clamp the workpiece.

The clamping block 230 may be positioned slightly lower than the supporting portion 320, the workpiece 500 to be machined is placed on the upper end surface of the supporting portion 320 by positioning the positioning block 261, and after the clamping portion 250 is rotated, the clamping block 230 is driven to rise to clamp the workpiece 500 to be machined.

Through trial production twice at a time, the positions and heights of the clamping structure 200 and the supporting structure 300 can be adjusted in time to achieve more accurate processing production.

It will be understood that the utility model has been described in terms of several embodiments, and that various changes and equivalents may be made to these features and embodiments by those skilled in the art without departing from the spirit and scope of the utility model. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the utility model without departing from the essential scope thereof. Therefore, it is intended that the utility model not be limited to the particular embodiment disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. The combined clamp for processing the special-shaped piece is characterized by comprising a bottom plate, a plurality of clamping structures and a plurality of supporting structures, wherein the clamping structures and the supporting structures are arranged on the bottom plate;

2. The combined clamp for processing the special-shaped piece according to claim 1, wherein the lower part of the side surface of the supporting base is provided with supporting latches which are popped outwards, the inner side wall of the slot is provided with clamping grooves corresponding to the supporting latches, the supporting latches are retracted when entering the slot, and pop out after entering the clamping grooves, so that the supporting structure is installed on the bottom plate.

3. The combined clamp for processing the special-shaped piece according to claim 1, wherein the clamping structure comprises at least one fixed clamping structure fixedly connected with the bottom plate, and a positioning block is arranged on the clamping block of the fixed clamping structure and used for positioning the to-be-processed piece.

4. The sectional fixture for the processing of a shaped piece according to claim 1, wherein the driving means comprises a lifting driving part and a rotation driving part; the lifting driving part is connected with the lifting rod to realize the lifting of the clamping block; the rotary driving part is connected with the supporting rod to realize the rotation of the clamping part.

5. The combined clamp for processing the special-shaped piece according to claim 2, wherein a clamping installation block which is elastically protruded outwards is arranged on the side surface of the clamping base, the clamping installation block is connected with the clamping latch inside the clamping base, and the clamping latch is retracted by pressing the clamping installation block, so that the clamping structure can be detachably installed on the bottom plate;

6. The sectional fixture for processing of special-shaped parts according to claim 1, wherein the upper end surface of the clamping block is flush with the upper end surface of the supporting portion when the lifting rod is fully retracted.

7. The combined clamp for processing the special-shaped piece according to claim 1, further comprising a plurality of supporting blocks for heightening the supporting structure, wherein the lower end face of each supporting block is provided with a supporting installation hole matched with the supporting part, the upper end face of each supporting block is provided with a heightening supporting part consistent with the supporting part, the supporting installation holes are sleeved into the supporting parts, and the heightening supporting parts are abutted with the lower end face of the workpiece to be processed to support the workpiece to be processed.

8. The sectional fixture for processing of special-shaped parts according to claim 1, wherein the clamping part is adjustably connected to the support rod, and the clamping part moves up and down on the support rod to adjust the clamping height.

9. The combined clamp for processing the special-shaped piece according to claim 2, wherein the protruding part of the clamping latch relative to the clamping base is in a downward inclined plane shape, and when the clamping base is inserted into the slot, the clamping latch is abutted against the inner wall of the slot, so that the clamping latch is retracted;