A clamping tool

Abstract

The utility model discloses a kind of clamping tool, including base, multiple sets of clamping mechanisms are equipped on the base, the clamping mechanism includes first stop block, second stop block, first pressure block, second pressure block and drive assembly, the first stop block is oppositely arranged with second stop block, the first pressure block is oppositely arranged between first stop block and second stop block with second pressure block, and it is movably arranged on base, the drive assembly is used to drive first pressure block and second pressure block mutually close or away, the side of the first stop block away from first pressure block is equipped with first limit part, the side of the second stop block away from second pressure block is equipped with second limit part, the first pressure block and first limit part and the second pressure block and second limit part between second limit part respectively form the clamping space for clamping workpiece.The utility model has the advantages of simple structure, clamping processing efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and specifically to a clamping fixture. Background Technology

[0002] Existing part clamping devices, such as the clamping device disclosed in Chinese Patent CN110206979B, can only clamp a single workpiece at a time, making it difficult to adapt to the mass production of single workpieces, resulting in low processing efficiency. Furthermore, some clamping devices require manual clamping, making operation cumbersome. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a clamping fixture with a simple structure and high clamping and processing efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A clamping fixture includes a base with multiple clamping mechanisms on it. Each clamping mechanism includes a first stop, a second stop, a first pressure block, a second pressure block, and a driving assembly. The first stop and the second stop are arranged opposite to each other, and the first pressure block and the second pressure block are arranged opposite to each other between the first stop and the second stop, and both are movably mounted on the base. The driving assembly is used to drive the first pressure block and the second pressure block to move closer to or further away from each other. The side of the first stop away from the first pressure block has a first limiting part, and the side of the second stop away from the second pressure block has a second limiting part. Clamping spaces for clamping workpieces are formed between the first pressure block and the first limiting part, and between the second pressure block and the second limiting part, respectively.

[0005] As a further improvement to the above technical solution: The drive assembly includes a wedge block and a lifting drive for driving the wedge block to rise and fall. The opposite sides of the first pressure block and the second pressure block are provided with inclined surfaces for cooperating with the wedge block, and the wedge block is slidably disposed between the two inclined surfaces.

[0006] The lifting drive is a lifting cylinder, and elastic elements are provided between the first and second pressure blocks and the base.

[0007] The base is equipped with a pneumatic control valve that controls the lifting cylinder.

[0008] Multiple sets of clamping mechanisms are arranged in parallel, with the second stop and the first stop of two adjacent clamping mechanisms integrally formed, and the second limiting part and the first limiting part of two adjacent clamping mechanisms integrally formed.

[0009] The base is provided with multiple rows of clamping mechanism groups, which are arranged at intervals.

[0010] The workpiece is provided with grooves on its side and end, and the first limiting part and the second limiting part are provided with machining clearance openings corresponding to the side grooves.

[0011] The first stop and the side of the first limiting part near the first pressure block are provided with support parts, and the second stop and the side of the second limiting part near the second pressure block are provided with support parts. The support parts are used to support the workpiece so that there is a gap between the workpiece and the top of the corresponding stop.

[0012] The base is provided with guide rails for guiding the first and second pressure blocks.

[0013] The first and second blocks are detachably connected to the base.

[0014] Compared with the prior art, the advantages of this utility model are: The clamping fixture disclosed in this utility model has a simple structure. One clamping mechanism can clamp and fix two workpieces. The use of a drive component to replace manual clamping and driving is more efficient. Furthermore, multiple clamping mechanisms are set on the base, which further increases the number of workpieces that can be clamped, making it easier to achieve mass production and improve production efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the clamping fixture of this utility model.

[0016] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0017] Figure 3 This is a cross-sectional structural diagram of the clamping fixture of this utility model.

[0018] The labels in the diagram represent: 1. Base; 2. Clamping mechanism; 21. First stop; 22. Second stop; 23. First pressure block; 24. Second pressure block; 25. Drive assembly; 251. Wedge block; 252. Lifting drive; 253. Pneumatic control valve; 26. First limiting part; 27. Second limiting part; 28. Machining clearance opening; 29. ​​Support part; 3. Workpiece. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Figures 1 to 3 This invention illustrates an embodiment of the clamping fixture. The clamping fixture of this embodiment includes a base 1, on which multiple clamping mechanisms 2 are provided. Each clamping mechanism 2 includes a first stop 21, a second stop 22, a first pressing block 23, a second pressing block 24, and a driving assembly 25. The first stop 21 and the second stop 22 are arranged opposite to each other, and the first pressing block 23 and the second pressing block 24 are arranged opposite to each other between the first stop 21 and the second stop 22, and are all movably mounted on the base 1. The driving assembly 25 is used to drive the first stop 21 and the second stop 22 to move closer or further apart. The side of the first stop 21 away from the first pressing block 23 has a first limiting part 26, and the side of the second stop 22 away from the second pressing block 24 has a second limiting part 27. Clamping spaces for clamping workpieces 3 are respectively formed between the first pressing block 23 and the first limiting part 26, and between the second pressing block 24 and the second limiting part 27.

[0024] In this clamping fixture, initially, the first clamping block 23 and the second clamping block 24 are brought close together, and two workpieces 3 are placed into the clamping space formed between the first clamping block 23 and the first limiting part 26, and the second clamping block 24 and the second limiting part 27, respectively. Then, the drive assembly 25 drives the first clamping block 23 and the second clamping block 24 to move away from each other. At this time, the first clamping block 23 pushes one workpiece 3 to press against the first stop 21, while the second clamping block 24 pushes the other workpiece 3 to press against the second stop 22. After the workpiece 3 is processed, the first clamping block 23 and the second clamping block 24 return to their original positions, and the workpiece 3 can be removed. This clamping fixture has a simple structure. One clamping mechanism 2 can clamp and fix two workpieces 3. Moreover, the use of the drive assembly 25 to replace manual clamping drive is more efficient. In addition, multiple sets of clamping mechanisms 2 are set on the base 1, which further increases the number of workpieces 3 that can be clamped, which facilitates mass production and improves production efficiency.

[0025] Furthermore, in this embodiment, the driving assembly 25 includes a wedge block 251 and a lifting drive 252 for driving the wedge block 251 to rise and fall. The opposite sides of the first pressure block 23 and the second pressure block 24 are provided with inclined surfaces for engaging with the wedge block 251, and the wedge block 251 slides between the two inclined surfaces. The lifting drive 252 drives the wedge block 251 to rise and fall. When the wedge block 251 rises and falls, its two sides engage with the inclined surfaces of the first pressure block 23 and the second pressure block 24, thereby pushing the first pressure block 23 and the second pressure block 24 closer together or further apart, resulting in a simple structure. Specifically, the cross-section of the wedge block 251 is approximately V-shaped.

[0026] Furthermore, in this embodiment, the lifting drive 252 is a lifting cylinder, and elastic elements are provided between the first pressure block 23 and the second pressure block 24 and the base 1. Preferably, the elastic element (not shown in the figure) is a spring, used for the resetting and approaching of the first pressure block 23 and the second pressure block 24, which has a simple structure and low cost.

[0027] Furthermore, in this embodiment, a pneumatic control valve 253 for controlling the lifting cylinders is provided on the base 1. Each lifting cylinder is individually controlled by the pneumatic control valve 253, which is beneficial for controlling the operation of the clamping mechanism 2 according to the actual production situation.

[0028] Furthermore, in this embodiment, multiple clamping mechanisms 2 are arranged side by side, with the second stop 22 and the first stop 21 of two adjacent clamping mechanisms 2 integrally formed, and the second limiting part 27 and the first limiting part 26 of two adjacent clamping mechanisms 2 integrally formed. Specifically, the second stop 22 of the first clamping mechanism 2 and the first stop 21 of the second clamping mechanism 2 are integrally formed, and the second limiting part 27 of the first clamping mechanism 2 and the first limiting part 26 of the second clamping mechanism 2 are integrally formed, resulting in a more compact structure.

[0029] Furthermore, in this embodiment, the base 1 is provided with two sets of multiple clamping mechanisms arranged at intervals. This further improves clamping efficiency, and the interval arrangement of the clamping mechanisms 2 helps to leave processing space at both ends of the workpiece 3.

[0030] Furthermore, in this embodiment, grooves are provided on both the side and end of the workpiece 3, and machining clearance openings 28 corresponding to the side grooves are provided on both the first limiting part 26 and the second limiting part 27. This facilitates machining of the grooves on the side of the workpiece 3 through the machining clearance openings 28.

[0031] Furthermore, in this embodiment, support portions 29 are provided on the first stop block 21 and the side of the first limiting portion 26 near the first pressing block 23, and on the second stop block 22 and the side of the second limiting portion 27 near the second pressing block 24. The support portions 29 are used to support the workpiece 3 so that there is a gap between the workpiece 3 and the top of the corresponding stop block. The support portions 29 on the first stop block 21 and the first limiting portion 26 jointly support one workpiece 3, and the support portions 29 on the second stop block 22 and the second limiting portion 27 jointly support one workpiece 3, so that there is a gap between the bottom of the workpiece 3 and the top of the corresponding stop block, which facilitates the processing of the workpiece 3 and protects the first stop block 21 and the second stop block 22 from being damaged during the processing of the workpiece 3. In addition, the support portions 29 should be lower than the first limiting portion 26 and the second limiting portion 27 to ensure the limiting function of the first limiting portion 26 and the second limiting portion 27.

[0032] Furthermore, in this embodiment, the base 1 is provided with a guide rail for guiding the first pressing block 23 and the second pressing block 24. The guide rail (not shown in the figure) guides the movement of the first pressing block 23 and the second pressing block 24 towards and away from each other, ensuring the clamping and resetting effect.

[0033] Furthermore, in this embodiment, the first stop 21 and the second stop 22 are detachably connected to the base 1. This facilitates the disassembly, assembly, and replacement of the first stop 21 and the second stop 22.

[0034] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A clamping fixture, characterized in that: The system includes a base (1) on which multiple clamping mechanisms (2) are provided. Each clamping mechanism (2) includes a first stop (21), a second stop (22), a first pressing block (23), a second pressing block (24), and a driving assembly (25). The first stop (21) and the second stop (22) are arranged opposite to each other, and the first pressing block (23) and the second pressing block (24) are arranged opposite to each other between the first stop (21) and the second stop (22), and are all movably mounted on the base (1). The drive assembly (25) is used to drive the first pressure block (23) and the second pressure block (24) to move closer or further away from each other. The first stop (21) is provided with a first limiting part (26) on the side away from the first pressure block (23), and the second stop (22) is provided with a second limiting part (27) on the side away from the second pressure block (24). The first pressure block (23) and the first limiting part (26) and the second pressure block (24) and the second limiting part (27) respectively form clamping spaces for clamping the workpiece (3).

2. The clamping fixture according to claim 1, characterized in that: The drive assembly (25) includes a wedge block (251) and a lifting drive (252) for driving the wedge block (251) to rise and fall. The first pressure block (23) and the second pressure block (24) are provided with inclined surfaces on opposite sides for cooperating with the wedge block (251). The wedge block (251) is slidably disposed between the two inclined surfaces.

3. The clamping fixture according to claim 2, characterized in that: The lifting drive (252) is a lifting cylinder, and elastic elements are provided between the first pressure block (23) and the second pressure block (24) and the base (1).

4. The clamping fixture according to claim 3, characterized in that: The base (1) is provided with a pneumatic control valve (253) for controlling the lifting cylinder.

5. The clamping fixture according to any one of claims 1 to 4, characterized in that: Multiple clamping mechanisms (2) are arranged in parallel. The second stop (22) and the first stop (21) of two adjacent clamping mechanisms (2) are integrally formed, and the second limiting part (27) and the first limiting part (26) of two adjacent clamping mechanisms (2) are integrally formed.

6. The clamping fixture according to claim 5, characterized in that: The base (1) is provided with multiple rows of clamping mechanisms (2) arranged at intervals.

7. The clamping fixture according to any one of claims 1 to 4, characterized in that: The workpiece (3) has grooves on its side and end, and the first limiting part (26) and the second limiting part (27) are provided with machining clearance openings (28) corresponding to the side grooves.

8. The clamping fixture according to any one of claims 1 to 4, characterized in that: The first stop (21) and the side of the first limiting part (26) near the first pressure block (23) are provided with support parts (29), and the second stop (22) and the side of the second limiting part (27) near the second pressure block (24) are provided with support parts (29). The support parts (29) are used to support the workpiece (3) so that there is a gap between the workpiece (3) and the top of the corresponding stop.

9. The clamping fixture according to any one of claims 1 to 4, characterized in that: The base (1) is provided with guide rails for guiding the first pressure block (23) and the second pressure block (24).

10. The clamping fixture according to any one of claims 1 to 4, characterized in that: The first stop (21) and the second stop (22) are detachably connected to the base (1).

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