CN223603893U

CN223603893U - General holding type clamping jig

Info

Publication number: CN223603893U
Application number: CN202423049852.8U
Authority: CN
Inventors: 许进昌; 宋向东
Original assignee: Kunshan Dianfu Precision Components Co ltd
Current assignee: Kunshan Dianfu Precision Components Co ltd
Priority date: 2024-12-11
Filing date: 2024-12-11
Publication date: 2025-11-28
Anticipated expiration: 2034-12-11

Abstract

This utility model discloses a universal clamping fixture, including a base plate. A support block is fixedly installed on each of the two edges of the upper surface of the base plate. A fixing block is fixedly installed on the upper surface of each support block. A positioning pin is fixedly installed on the upper surface of each fixing block. A clamping cylinder is fixedly installed on the upper surface of each support block near the positioning pin. An interchangeable block is provided above the bottom. A positioning part is provided at each end of the interchangeable block corresponding to the fixing block. A matching guide sleeve is provided on the positioning part corresponding to the position of the positioning pin. Several through-holes are provided on the upper surface of the interchangeable block, and several clamping parts are provided on the side of the interchangeable block corresponding to the positions of the clamping holes. The interchangeable block has different clamping holes depending on the part, and a base for mounting the interchangeable block is provided, thereby enabling the handling of various irregularly shaped mass-produced parts and achieving cost reduction and efficiency improvement.

Description

General holding type clamping jig

Technical Field

The utility model relates to the technical field of clamping jigs, in particular to a general holding type clamping jig.

Background

The fixture is one device for clamping workpiece and guiding cutter in machine tool, and has the main function of locating workpiece accurately, and the correct position between the machine tool and the cutter is set, so that the workpiece is clamped and fixed in certain direction.

However, when the existing clamp clamps tiny parts, the clamping time is long due to the small size or the dissimilarity of the parts, the clamping is difficult, the labor and the time cost are wasted, the clamping is unstable, and the reject ratio of the part processing is high, so that a general holding type clamping fixture is provided.

Disclosure of utility model

The utility model aims to provide a general holding type clamping fixture, which solves the problems that the clamping time is long, the clamping is difficult due to small size or dissimilarity of parts when the existing fixture is used for clamping tiny parts, the labor and time cost are wasted, the clamping is unstable, and the defective rate of part processing is high.

The universal holding type clamping jig comprises a bottom plate, wherein two side edges of the upper surface of the bottom plate are fixedly provided with a supporting block, the upper surfaces of the two supporting blocks are fixedly provided with fixing blocks, the upper surfaces of the fixing blocks are fixedly provided with positioning pins, the positions, close to the positioning pins, of the upper surfaces of the supporting blocks are fixedly provided with compression cylinders, the upper part of the bottom plate is provided with an exchange block, two ends of the exchange block, corresponding to the fixing blocks, are respectively provided with a positioning part, matched guide sleeves are arranged on the positioning parts, the upper surfaces of the exchange block are provided with a plurality of through clamping holes, and the positions, corresponding to the clamping holes, of the side surfaces of the exchange block are provided with a plurality of clamping parts.

The locating pin and the guide sleeve are matched, are used for locating when the interchange block is installed, limit the horizontal direction of the limiting block, avoid deviation, press the air cylinder downwards, limit the vertical reverse direction of the interchange block, prevent the interchange block from vibrating in the machining process, and the clamping part is used for clamping a product to be machined.

Preferably, the positioning pins are arranged in a plurality and are symmetrically distributed on the upper surfaces of the two fixing blocks at equal intervals.

Preferably, the number of the pressing cylinders is set according to the positioning pins, the output ends of the pressing cylinders are upward and fixedly provided with a pressing block, and one side of the pressing block, which is close to the fixed block, extends to the upper side of the positioning pins. When the exchange block is arranged on the fixed block, the guide sleeve is attached and sleeved outside the positioning pin, the output end of the compression cylinder moves downwards, and the pressing block can be driven to move downwards and be pressed on the positioning part of the exchange block to fix the exchange block.

Preferably, the positioning pins on the fixing blocks on the different sides are different in size, the positioning pins on the fixing blocks on the same side are the same in size, and the guide sleeves at the two ends of the exchange block are respectively arranged according to the sizes of the corresponding positioning pins. The locating pins on the two fixed blocks are set to be different in size, and the guide sleeves on the interchange block are set according to the sizes of the corresponding locating pins, so that a fool-proof effect can be achieved, and the guide sleeves on the interchange block can only be sleeved on the corresponding locating pins.

Preferably, the clamping holes are arranged on the interchange block at equal intervals, and the shape and the size of the clamping holes are set according to the shape and the size of the part to be processed. The part to be processed is a small-size special-shaped part, and the clamping holes are formed according to the size and the shape of the part, so that the part to be processed can be stably clamped and fixed by the clamping holes.

Preferably, two adjacent clamping holes are arranged in a group, and a clamping part is respectively arranged between each group of clamping holes. By arranging a clamping part between two adjacent clamping holes, two clamping holes can be clamped simultaneously by one clamping part.

Preferably, the clamping portion comprises a first groove, a second groove, a through hole and a threaded hole, the first groove is formed between two clamping holes of the same group and is close to the edge of the interchange block, two ends of the first groove extend into the corresponding clamping holes respectively, the second groove is formed in the middle of the first groove, which is close to one side of the edge of the interchange block, one end of the second groove is communicated with the first groove, and one end of the second groove, which is far away from the first groove, extends to the edge of the interchange block. The cross sections of the first groove and the second groove form a T shape together.

Preferably, the first groove and the second groove are vertically arranged, and the first groove and the second groove extend downwards and penetrate through the bottom of the interchange block. The first groove and the second groove penetrate through the interchange block, so that the part, located between the clamping hole and the first groove, of the interchange block can deform under the action of external force.

Preferably, the through holes are at least one, the positions of the side walls of the interchange blocks corresponding to the second grooves are arranged, the positions of the side walls of the first grooves corresponding to the through holes are arranged in the threaded holes, the number of the threaded holes is the same as that of the through holes, the screws are arranged in the threaded holes in a threaded manner, and the clamping holes are clamped and fixed by the screws to squeeze the side walls of the interchange blocks. Through pass the screw and with screw hole threaded connection, make the nut extrusion of screw exchange the lateral wall of piece to make exchange the piece outer wall and take place deformation, make the interval of first recess reduce, thereby make the clamp hole size reduce, carry out the centre gripping fixed to the product of treating.

Compared with the prior art, the technical scheme provided by the utility model has the following technical effects:

the utility model sets up the interchange block with different clamping holes according to different parts, and sets up the base used for installing the interchange block, thus can deal with various special-shaped mass production parts, realize the cost reduction and efficiency improvement, set up the locating pin on the base, set up the correspondent guide sleeve on the interchange block, position the interchange block while installing, guarantee the precision of repeated installation, through setting up the clamping cylinder on the base, lock and loosen the interchange block, save the installation time, set up the locating pin of both sides on the base as different sizes, play a foolproof role.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic top view of the present utility model;

FIG. 3 is a schematic diagram of the structure of the interchange block of the present utility model;

Fig. 4 is a side cross-sectional view of the interchangeable block of the present utility model.

The reference numerals are 1, a bottom plate, 2, a supporting block, 3, a fixing block, 4, a locating pin, 5, a compressing cylinder, 6, an interchange block, 7, a locating part, 8, a guide sleeve, 9, a clamping hole, 10, a clamping part, 11, a pressing block, 12, a first groove, 13, a second groove, 14, a through hole, 15 and a threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the application, which is defined by the claims, but rather by the claims, unless otherwise indicated, and that any structural modifications, proportional changes, or dimensional adjustments, which would otherwise be apparent to those skilled in the art, would be made without departing from the spirit and scope of the application.

Referring to fig. 1-4, the utility model provides a technical scheme that a general holding type clamping fixture comprises a bottom plate 1, wherein two side edges of the upper surface of the bottom plate 1 are fixedly provided with a supporting block 2, the upper surfaces of the two supporting blocks 2 are fixedly provided with a fixed block 3, the upper surface of the fixed block 3 is fixedly provided with a positioning pin 4, the upper surface of the supporting block 2 is fixedly provided with a compression cylinder 5 near the positioning pin 4, an exchange block 6 is arranged above the bottom plate 1, two ends of the exchange block 6 corresponding to the fixed block 3 are respectively provided with a positioning part 7, the positions of the positioning parts 7 corresponding to the positioning pins 4 are provided with a matched guide sleeve 8, the upper surface of the exchange block 6 is provided with a plurality of through clamping holes 9, and the positions of the side surfaces of the exchange block 6 corresponding to the clamping holes 9 are provided with a plurality of clamping parts 10.

The positioning pins 4 are arranged on the upper surfaces of the two fixing blocks 3 in a plurality of equally-spaced symmetrical mode.

The number of the pressing cylinders 5 is set according to the positioning pins 4, the output ends of the pressing cylinders 5 are upward and fixedly provided with a pressing block 11, and one side of the pressing block 11, which is close to the fixed block 3, extends to the upper side of the positioning pins 4.

The positioning pins 4 on the fixed blocks 3 on different sides are different in size, the positioning pins 4 on the fixed blocks 3 on the same side are the same in size, and the guide sleeves 8 at the two ends of the interchange block 6 are respectively arranged according to the sizes of the corresponding positioning pins 4.

The clamping holes 9 are arranged on the exchange block 6 at equal intervals, and the shape and the size of the clamping holes 9 are set according to the shape and the size of the part to be processed.

Two clamping holes 9 are arranged in a group, and a clamping part 10 is respectively arranged between each group of clamping holes 9.

The clamping portion 10 comprises a first groove 12, a second groove 13, a through hole 14 and a threaded hole 15, wherein the first groove 12 is formed between two clamping holes 9 in the same group and is close to the edge of the interchange block 6, two ends of the first groove 12 respectively extend into the corresponding clamping holes 9, the second groove 13 is formed in the middle position of one side, close to the edge of the interchange block 6, of the first groove 12, one end of the second groove 13 is communicated with the first groove 12, and one end, far away from the first groove 12, of the second groove 13 extends to the edge of the interchange block 6.

The first groove 12 and the second groove 13 are arranged vertically, and both the first groove 12 and the second groove 13 extend downward and penetrate the bottom of the interchange block 6.

At least one through hole 14 is formed in the side wall of the exchange block 6 corresponding to the position of the second groove 13, a threaded hole 15 is formed in the side wall of the first groove 12 corresponding to the position of the through hole 14, the number of the threaded holes 15 is the same as that of the through holes 14, screws are arranged in the threaded holes 15 in a threaded manner, and the clamping holes 9 are clamped and fixed by extruding the side wall of the exchange block 6 through the screws.

The working principle or the structure principle is that firstly, the corresponding interchange block 6 is selected according to the size and the shape of a part to be processed, the interchange block 6 is placed on the fixed block 3, the guide sleeve 8 on the positioning part 7 is sleeved outside the positioning pin 4 on the fixed block 3, then the compression cylinder 5 is controlled to drive the pressing block 11 to be pressed on the interchange block 6 for fixing, then the product to be processed is sequentially placed into the clamping holes 9 on the interchange block 6, the screw is screwed into the threaded holes 15 to squeeze the part between the edge of the interchange block 6 and the first groove 12, the clamping holes 9 clamp and fix the product to be processed, finally, the bottom plate 1 is installed on a machine table for processing, and after the processing is finished, the compression cylinder 5 is opened, the interchange block 6 can be quickly taken down for replacement.

Thus, embodiments of the present utility model have been described in detail with reference to the accompanying drawings. It should be noted that, in the drawings or the text of the specification, implementations not shown or described are all forms known to those of ordinary skill in the art, and not described in detail. Furthermore, the above definitions of the components are not limited to the specific structures, shapes or modes mentioned in the embodiments, and may be simply modified or replaced by those of ordinary skill in the art.

Those skilled in the art will appreciate that the features recited in the various embodiments of the utility model and/or in the claims may be combined in various combinations and/or combinations, even if such combinations or combinations are not explicitly recited in the utility model. In particular, the features recited in the various embodiments of the utility model and/or in the claims can be combined in various combinations and/or combinations without departing from the spirit and teachings of the utility model. All such combinations and/or combinations fall within the scope of the utility model.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the utility model thereto, but to limit the utility model thereto, and any modifications, equivalents, improvements and equivalents thereof may be made without departing from the spirit and principles of the utility model.

Claims

1. The utility model provides a general clamping jig, includes bottom plate (1), its characterized in that bottom plate (1) upper surface both sides edge is fixed mounting has a supporting shoe (2), two the upper surface of supporting shoe (2) is fixed mounting has fixed block (3), the upper surface fixed mounting of fixed block (3) has locating pin (4), the upper surface of supporting shoe (2) is close to the position fixed mounting of locating pin (4) has compress tightly cylinder (5), the top of bottom plate (1) is provided with exchanges piece (6), the both ends portion that exchange piece (6) correspond fixed block (3) all is provided with a locating part (7), the guide pin bushing (8) of assorted have been seted up to the position that corresponds locating pin (4) on locating part (7), the upper surface of exchange piece (6) has seted up clip hole (9) that a plurality of link up, the side of exchange piece (6) corresponds clip hole (9) position is provided with a plurality of clamping part (10).

2. The universal holding type clamping jig according to claim 1, wherein the positioning pins (4) are arranged in a plurality and are symmetrically distributed on the upper surfaces of the two fixing blocks (3) at equal intervals.

3. The universal holding type clamping jig according to claim 2, wherein the number of the pressing cylinders (5) is set according to the positioning pins (4), the output ends of the pressing cylinders (5) are upward and fixedly provided with pressing blocks (11), and one sides of the pressing blocks (11) close to the fixed blocks (3) extend to the positions above the positioning pins (4).

4. The universal holding type clamping jig according to claim 1, wherein the positioning pins (4) on the fixing blocks (3) on different sides are different in size, the positioning pins (4) on the fixing blocks (3) on the same side are the same in size, and the guide sleeves (8) at two ends of the interchange block (6) are respectively arranged according to the sizes of the corresponding positioning pins (4).

5. The universal holding type clamping jig according to claim 1, wherein the clamping holes (9) are arranged on the interchange block (6) at equal intervals, and the shape and the size of the clamping holes (9) are set according to the shape and the size of a part to be machined.

6. The universal holding type clamping jig according to claim 5, wherein two adjacent clamping holes (9) are arranged in a group, and a clamping part (10) is respectively arranged between each group of clamping holes (9).

7. The universal holding type clamping jig according to claim 6, wherein the clamping portion (10) comprises a first groove (12), a second groove (13), a through hole (14) and a threaded hole (15), the first groove (12) is formed between two clamping holes (9) of the same group and is close to the edge of the interchange block (6), two ends of the first groove (12) respectively extend into the corresponding clamping holes (9), the second groove (13) is formed in the middle position of one side, close to the edge of the interchange block (6), of the first groove (12), one end of the second groove (13) is communicated with the first groove (12), and one end, far away from the first groove (12), of the second groove (13) extends to the edge of the interchange block (6).

8. The universal holding type clamping jig according to claim 7, wherein the first groove (12) and the second groove (13) are vertically arranged, and the first groove (12) and the second groove (13) extend downwards and penetrate through the bottom of the interchange block (6).

9. The universal holding type clamping jig according to claim 8, wherein at least one through hole (14) is formed in the side wall of the interchange block (6) corresponding to the position of the second groove (13), the threaded holes (15) are formed in the side wall of the first groove (12) corresponding to the positions of the through holes (14), the number of the threaded holes (15) is the same as that of the through holes (14), screws are arranged in the threaded holes (15) in a threaded manner, and the clamping holes (9) are clamped and fixed through the side wall of the screw extrusion interchange block (6).