Universal embracing type clamping jig

Abstract

The utility model discloses a universal embracing type clamping jig which comprises a bottom plate, the edges of the two sides of the upper surface of the bottom plate are each fixedly provided with a supporting block, the upper surfaces of the two supporting blocks are each fixedly provided with a fixing block, and the upper surfaces of the fixing blocks are each fixedly provided with a positioning pin. A pressing air cylinder is fixedly installed at the position, close to the positioning pin, of the upper surface of the supporting block, an interchanging block is arranged above the bottom, the two ends, corresponding to the fixing block, of the interchanging block are each provided with a positioning part, matched guide sleeves are arranged at the positions, corresponding to the positioning pin, of the positioning parts, and a plurality of through clamping holes are formed in the upper surface of the interchanging block. And a plurality of clamping parts are arranged on the side surface of the interchanging block corresponding to the clamping holes. According to different parts, the interchanging blocks with different clamping holes are arranged, and the base used for installing the interchanging blocks is arranged, so that various special-shaped mass production parts can be adapted, and cost reduction and efficiency improvement are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of clamping fixture, specifically to a general embrace type clamping fixture. BACKGROUND

[0002] The fixture is a device for clamping workpieces and guiding tools on a machine tool, wherein accurate positioning of the workpiece is the main function, and the fixture has a correct position between the machine tool and the tool, does not interfere with processing, and can clamp and fix the workpiece in a certain direction.

[0003] However, the existing fixture is long in clamping time and difficult to clamp when clamping small parts due to the small size or asymmetry of the parts, thereby causing waste of manpower and time cost, and unstable clamping, resulting in a high defective rate of part processing. Therefore, we propose a general embrace type clamping fixture. SUMMARY

[0004] The utility model discloses a general embrace type clamping fixture, which solves the problem of the existing fixture in clamping small parts due to the small size or asymmetry of the parts, which is long in clamping time and difficult to clamp, thereby causing waste of manpower and time cost, and unstable clamping, resulting in a high defective rate of part processing.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a general embrace type clamping fixture, comprising a bottom plate, the upper surface of the bottom plate is fixedly installed with a support block on both sides of the edge, the upper surface of the two support blocks is fixedly installed with a fixed block, the upper surface of the fixed block is fixedly installed with a positioning pin, the upper surface of the support block is fixedly installed with a compression cylinder close to the position of the positioning pin, the bottom plate is provided with an exchange block above, the two ends of the exchange block correspond to the fixed block and are provided with a positioning part, the positioning part is provided with a matched guide sleeve corresponding to the position of the positioning pin, the upper surface of the exchange block is provided with a plurality of through clamping holes, and the side of the exchange block is provided with a plurality of clamping parts corresponding to the position of the clamping hole.

[0006] The positioning pin and the guide sleeve are matched, are used for positioning when the exchange block is installed, and limit the horizontal direction of the limiting block to avoid deviation, the compression cylinder is pressed down, the vertical reverse of the exchange block is limited, vibration of the exchange block in the processing process is prevented, and the clamping part is used for clamping the product to be processed.

[0007] Preferably, the positioning pin is provided with a plurality of and symmetrically distributed at equal intervals on the upper surface of the two fixed blocks.

[0008] As preferred, the number of the pressing cylinders is arranged according to the positioning pins, and the output end of the pressing cylinder is upwardly and fixedly provided with a pressing block, and the pressing block extends to above the positioning pin on the side close to the fixed block. When the interchangeable block is mounted on the fixed block, the guide sleeve is sleeved on the outside of the positioning pin, the output end of the pressing cylinder is moved downward, the pressing block is moved downward and pressed on the positioning part of the interchangeable block, and the interchangeable block is fixed.

[0009] As preferred, the sizes of the positioning pins on the fixed blocks on different sides are different, the sizes of the positioning pins on the fixed blocks on the same side are same, and the sizes of the guide sleeves on the two ends of the interchangeable block are respectively arranged according to the sizes of the corresponding positioning pins. The positioning pins on the two fixed blocks are arranged to be different in size, and the guide sleeves on the interchangeable block are arranged according to the sizes of the corresponding positioning pins, so that the guide sleeves on the interchangeable block can only be sleeved on the corresponding positioning pins, and the foolproof effect is achieved.

[0010] As preferred, the clamping holes are arranged at equal intervals on the interchangeable block, and the shape and size of the clamping hole are arranged according to the shape and size of the part to be machined. The part to be machined is a small-size special-shaped part, and the clamping hole is arranged according to the size and shape of the part, so that the part to be machined can be stably clamped and fixed by the clamping hole.

[0011] As preferred, two adjacent clamping holes are arranged as a group, and one clamping part is arranged between each group of clamping holes. By arranging a clamping part between two adjacent clamping holes, the two clamping holes can be clamped at the same time by one clamping part.

[0012] As preferred, the clamping part comprises a first groove, a second groove, a through hole and a threaded hole, the first groove is arranged between the two clamping holes of the same group and close to the edge of the interchangeable block, the two ends of the first groove respectively extend into the corresponding clamping holes, the second groove is arranged at the middle position of the side of the first groove close to the edge of the interchangeable block, one end of the second groove communicates with the first groove, and the other end of the second groove extends to the edge of the interchangeable block away from the first groove. The cross sections of the first groove and the second groove together form a T shape.

[0013] As preferred, the first groove and the second groove are arranged vertically, and the first groove and the second groove both extend downward and penetrate through the bottom of the interchangeable block. The first groove and the second groove both penetrate through the interchangeable block, so that the part between the clamping hole, the first groove and the second groove on the interchangeable block can be deformed under the action of external force.

[0014] As preferred, the through hole is arranged at least one, and is arranged at the position corresponding to the second groove of the side wall of the interchangeable block, the threaded hole is arranged at the position corresponding to the through hole of the side wall of the first groove, the number of the threaded hole is same with the number of the through hole, the screw is screwed in the threaded hole, and the clamping hole is clamped and fixed by extruding the side wall of the interchangeable block through the screw. By penetrating the screw into the threaded hole and screwing the threaded hole, the nut of the screw extrudes the outer side wall of the interchangeable block, so that the outer wall of the interchangeable block is deformed, the distance of the first groove is reduced, the size of the clamping hole is reduced, and the product to be processed is clamped and fixed.

[0015] Compared with the prior art, the above technical scheme has the following technical effects:

[0016] The interchangeable block with different clamping holes is arranged according to different parts, and the base for mounting the interchangeable block is arranged, so that various special-shaped mass production parts can be coped with, cost reduction and benefit increase are realized; the positioning pin is arranged on the base, the corresponding guide sleeve is arranged on the interchangeable block, the interchangeable block is positioned during mounting, and the precision of repeated mounting is ensured; the clamping cylinder is arranged on the base, the interchangeable block is locked and loosened, and the mounting time is saved; the positioning pins on the two sides of the base are arranged to be different sizes, and the anti-fooling effect is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model;

[0018] Figure 2 It is a top view schematic view of the utility model;

[0019] Figure 3 It is a structural schematic view of the interchangeable block of the utility model;

[0020] Figure 4 It is a side view sectional view of the interchangeable block of the utility model.

[0021] Mark 1, base plate; 2, support block; 3, fixed block; 4, positioning pin; 5, compression cylinder; 6, interchangeable block; 7, positioning part; 8, guide sleeve; 9, clamping hole; 10, clamping part; 11, compression block; 12, first groove; 13, second groove; 14, through hole; 15, threaded hole. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to illustrate the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the conditions of the application, so they do not have technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose of the application, should still fall within the scope of the disclosed technology.

[0024] Please refer to Figures 1-4 The utility model provides a technical scheme: a general holding type clamping fixture, including the bottom plate 1, the upper surface both sides edges of bottom plate 1 are fixedly installed with a support block 2, the upper surface of two support blocks 2 are fixedly installed with fixed block 3, the upper surface of fixed block 3 is fixedly installed with the positioning pin 4, the upper surface of support block 2 is fixedly installed with the pressure cylinder 5 near the position of positioning pin 4, the upper surface of bottom plate 1 is provided with the exchange block 6, the both ends of exchange block 6 correspond fixed block 3 are provided with a positioning part 7, the position of positioning part 7 correspond positioning pin 4 is provided with the matched guide sleeve 8, the upper surface of exchange block 6 is provided with a plurality of through clamping hole 9, the side of exchange block 6 correspond the position of clamping hole 9 is provided with a plurality of clamping parts 10.

[0025] The positioning pin 4 is provided with a plurality of and equidistantly and symmetrically distributed on the upper surface of the two fixed blocks 3.

[0026] The number of pressure cylinders 5 is set according to the positioning pin 4, and the output end of the pressure cylinder 5 is upwardly and fixedly installed with a pressure block 11, and the side of the pressure block 11 close to the fixed block 3 extends to the upper side of the positioning pin 4.

[0027] The sizes of the positioning pins 4 on the fixed blocks 3 of different sides are different, and the sizes of the positioning pins 4 on the fixed blocks 3 of the same side are the same, and the sizes of the guide sleeves 8 at both ends of the exchange block 6 are respectively set according to the sizes of the corresponding positioning pins 4.

[0028] The clamping holes 9 are equidistantly arranged on the exchange block 6, and the shapes and sizes of the clamping holes 9 are set according to the shapes and sizes of the parts to be machined.

[0029] Two clamping holes 9 are set as a group, and one clamping part 10 is respectively arranged between each group of clamping holes 9.

[0030] The clamping part 10 comprises a first groove 12, a second groove 13, a through hole 14 and a threaded hole 15, the first groove 12 is arranged between two clamping holes 9 of the same group and close to the edge of the interchangeable block 6, the two ends of the first groove 12 extend into the corresponding clamping hole 9 respectively, the second groove 13 is arranged at the middle position of the side of the first groove 12 close to the edge of the interchangeable block 6, one end of the second groove 13 communicates with the first groove 12, and the other end of the second groove 13 extends to the edge of the interchangeable block 6.

[0031] The first groove 12 and the second groove 13 are vertically arranged, and both the first groove 12 and the second groove 13 extend downward and penetrate through the bottom of the interchangeable block 6.

[0032] The through hole 14 is arranged at least one and arranged at the position of the side wall of the interchangeable block 6 corresponding to the second groove 13, the threaded hole 15 is arranged at the position of the side wall of the first groove 12 corresponding to the through hole 14, the number of the threaded hole 15 is same with the number of the through hole 14, the threaded hole 15 is screwed with a screw, and the clamping hole 9 is clamped and fixed by extruding the side wall of the interchangeable block 6 through the screw.

[0033] Working principle or structural principle: firstly, according to the size and shape of the to-be-processed part, the corresponding interchangeable block 6 is selected, the interchangeable 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 pressing cylinder 5 drives the pressing block 11 to press on the interchangeable block 6 for fixation, then the to-be-processed product is placed in the clamping hole 9 on the interchangeable block 6 in sequence, the screw is screwed into the threaded hole 15 to extrude the part between the edge of the interchangeable block 6 and the first groove 12, so that the clamping hole 9 clamps and fixes the to-be-processed product, finally the bottom plate 1 is installed on the machine table, and the processing can be carried out, after the processing is completed, the pressing cylinder 5 is opened, the interchangeable block 6 can be quickly taken down and replaced.

[0034] Herein, the embodiments of the present application have been described in detail with reference to the drawings. It should be noted that the implementation manners not shown or described in the drawings or the specification are known to those skilled in the art, and are not described in detail. In addition, the definition of each component described above is not limited to the various specific structures, shapes or manners mentioned in the embodiments, and those skilled in the art can make simple changes or replacements.

[0035] Those skilled in the art can understand that the features recorded in each embodiment and / or claim of the present application can be combined or / and combined in various ways, even if such combination or combination is not explicitly recorded in the present application. In particular, the features recorded in each embodiment and / or claim of the present application can be combined in various ways without departing from the spirit and teachings of the present application. All these combinations and / or combinations fall within the scope of the present application.

[0036] The above-described specific embodiments further specifically describe the purpose, technical solutions and beneficial effects of the present application, and it should be understood that the above-described specific embodiments are merely examples of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A general-purpose embracing type of chucking jig comprising a base plate (1), characterized by: The upper surface of the bottom plate (1) is fixedly installed with a support block (2) on both sides of the edge, the upper surface of the two support blocks (2) is fixedly installed with a fixed block (3), the upper surface of the fixed block (3) is fixedly installed with a positioning pin (4), the upper surface of the support block (2) is fixedly installed with a pressing cylinder (5) near the position of the positioning pin (4), the upper surface of the bottom plate (1) is provided with an exchange block (6), the two ends of the exchange block (6) are provided with a positioning part (7) corresponding to the fixed block (3), the positioning part (7) is provided with a matched guide sleeve (8) corresponding to the position of the positioning pin (4), the upper surface of the exchange block (6) is provided with a plurality of through clamping holes (9), the side of the exchange block (6) is provided with a plurality of clamping parts (10) corresponding to the position of the clamping hole (9).

2. The universal embrace type chucking jig according to claim 1, wherein: The positioning pin (4) is provided with a plurality of and equidistantly symmetrically distributed on the upper surface of the two fixed blocks (3).

3. The universal embrace type chucking jig according to claim 2, wherein: The number of the pressing cylinder (5) is set according to the positioning pin (4), the output end of the pressing cylinder (5) is upwardly and fixedly installed with a pressing block (11), the side of the pressing block (11) close to the fixed block (3) extends to the upper side of the positioning pin (4).

4. The universal embrace type chucking jig according to claim 1, wherein: The sizes of the positioning pins (4) on the fixed blocks (3) of different sides are different, and the sizes of the positioning pins (4) on the fixed blocks (3) of the same side are the same, the sizes of the guide sleeves (8) at both ends of the exchange block (6) are respectively set according to the sizes of the corresponding positioning pins (4).

5. The universal embrace type chucking jig according to claim 1, wherein: The clamping holes (9) are equidistantly arranged on the exchange block (6), and the shape and size of the clamping hole (9) are set according to the shape and size of the part to be machined.

6. A universal embrace type chucking jig according to claim 5, wherein: Two adjacent clamping holes (9) are arranged as a group, and one clamping part (10) is arranged between each group of clamping holes (9).

7. A universal embrace type chucking jig according to claim 6, wherein: The clamping part (10) comprises a first groove (12), a second groove (13), a through hole (14) and a threaded hole (15), the first groove (12) is arranged between the two clamping holes (9) of the same group and close to the edge of the exchange block (6), the two ends of the first groove (12) respectively extend into the corresponding clamping hole (9), the second groove (13) is arranged at the middle position of the side of the first groove (12) close to the edge of the exchange block (6), one end of the second groove (13) is communicated with the first groove (12), and the other end of the second groove (13) away from the first groove (12) extends to the edge of the exchange block (6).

8. The universal embrace type chucking jig according to claim 7, wherein: The first groove (12) and the second groove (13) are vertically arranged, and both the first groove (12) and the second groove (13) extend downwardly and penetrate through the bottom of the exchange block (6).

9. A universal embrace type chucking jig according to claim 8, wherein: The through hole (14) is arranged at least one, and is arranged at the position corresponding to the second groove (13) of the side wall of the exchange block (6), the threaded hole (15) is arranged at the position corresponding to the through hole (14) of the side wall of the first groove (12), the number of the threaded hole (15) is the same as that of the through hole (14), a screw is threadedly installed in the threaded hole (15), and the clamping hole (9) is clamped and fixed by extruding the side wall of the exchange block (6) through the screw.

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