Self-centering multi-station clamp

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a self-centering multi-station clamp which comprises a shell, an inclined pressing and pushing block is slidably connected into the shell, a first sliding block is slidably connected into the shell, the upper end of the first sliding block is fixedly connected with a first clamping block, and the lower end of the first clamping block is fixedly connected with a second clamping block. A first connecting block is fixedly connected to the lower end of the first clamping block, the first connecting block is slidably connected to the interior of the first sliding block, a second sliding block is slidably connected to the interior of the shell, and a second clamping block is fixedly connected to the upper end of the second sliding block. According to the self-centering clamp, the inclination pressing pushing block is matched with the first sliding block and the second sliding block, the first clamping block and the second clamping block are pressed inwards at the same time, the position of a workpiece can be automatically corrected, and therefore the self-centering function is achieved, it is guaranteed that the workpiece is located at the accurate position when clamped, and the problem that when a traditional clamp clamps the workpiece, the workpiece cannot be accurately clamped is solved. And the problems of position offset or inaccurate centering possibly exist.

Description

Technical Field

[0001] This utility model relates to the field of fixture technology, specifically a self-centering multi-station fixture. Background Technology

[0002] A fixture is a tool used in manufacturing, machining, or assembly processes to fix workpieces, guide tools, or ensure process accuracy. Its main functions are to position, clamp, and support workpieces, ensuring accuracy and repeatability during machining, improving production efficiency, and reducing human error. Fixtures are widely used in machinery manufacturing, electronic assembly, and automotive manufacturing, and are indispensable equipment in industrial automation. Fixtures can be categorized in many ways based on their purpose and application, such as machine tool fixtures, welding fixtures, assembly fixtures, and inspection fixtures. Based on their structure and usage, they can also be divided into special-purpose fixtures and general-purpose fixtures. In general, the rational design and selection of fixtures can not only effectively improve machining accuracy and efficiency but also reduce production costs, providing strong support for modern manufacturing in various industries. In the future, with technological advancements, fixtures will become more intelligent and flexible, continuing to drive progress in the manufacturing industry.

[0003] Traditional fixtures may experience positional shifts or misalignment when clamping workpieces. Utility Model Content

[0004] The purpose of this utility model is to provide a self-centering multi-station fixture, which solves the problem that traditional fixtures may have positional offset or misalignment when clamping workpieces.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a self-centering multi-station fixture, comprising a housing, an inclined clamping push block slidably connected inside the housing, a first slider slidably connected inside the housing, a first clamping block fixedly connected to the upper end of the first slider, a first connecting block fixedly connected to the lower end of the first clamping block, a first connecting block slidably connected inside the first slider, a second slider slidably connected inside the housing, a second clamping block fixedly connected to the upper end of the second slider, a second connecting block fixedly connected to the lower end of the second clamping block, a second connecting block slidably connected inside the second slider, the first connecting block and the second connecting block being V-shapedly distributed inside the housing, a prying opening rod provided inside the housing, the prying opening rod being slidably connected to the inclined clamping push block, an opening rod fulcrum shaft provided inside the inclined clamping push block, and the opening rod fulcrum shaft being rotatably connected to the prying opening rod.

[0006] Preferably, the first slider and the second slider are located on both sides inside the housing and are symmetrically arranged to achieve the self-centering function of the clamping block.

[0007] Preferably, the inclined pressing push block is provided with a guide groove, which cooperates with the guide structure inside the housing to ensure the sliding stability of the inclined pressing push block.

[0008] Preferably, the surface of the pry bar is provided with an anti-slip texture to improve stability and reliability during operation.

[0009] Preferably, the housing is provided with an opening rod support plate, the prying opening rod is slidably connected to the opening rod support plate, and the prying opening rod is provided with a built-in small spring inside. One end of the built-in small spring contacts the prying opening rod, and the other end of the built-in small spring contacts the opening rod support plate. The elastic force of the built-in small spring is less than that of the spring, so as to ensure that the opening rod support plate and the prying opening rod maintain appropriate contact during operation.

[0010] Preferably, a spring is slidably disposed inside the housing, and a spring limiting block is fixedly connected to the lower end of the housing. One end of the spring contacts the spring limiting block, and the other end of the spring contacts the inclined pressing and pushing block. A buffer pad is provided on the spring limiting block to reduce the impact force of the spring when it is reset, thereby improving the stability and service life of the device.

[0011] Preferably, the housing is made of aluminum alloy to reduce weight and improve its stability.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model uses an inclined pressing push block in conjunction with a first slider and a second slider to press the first clamping block and the second clamping block inward simultaneously, which can automatically correct the position of the workpiece, thereby achieving a self-centering function and ensuring that the workpiece is in an accurate position when clamped. This solves the problem that traditional fixtures may have positional offset or misalignment when clamping workpieces.

[0014] 2. This utility model utilizes the automatic clamping function of the fixture, driven by a spring, eliminating the hassle of manually adjusting the clamping force and position, thus improving operational efficiency. Only external force is required to open the fixture, simplifying the operation process. The fixture can be installed vertically or horizontally, increasing its adaptability to different working environments and meeting various process requirements, offering greater flexibility. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model;

[0016] Figure 2 For the present utility model Figure 1 Explosion diagram;

[0017] Figure 3 For the present utility model Figure 1 Side sectional view;

[0018] Figure 4 For the present utility model Figure 2 The front sectional view.

[0019] In the diagram: 1. Housing; 2. Inclined pressing push block; 3. First slider; 31. First clamping block; 311. First connecting block; 4. Second slider; 41. First clamping block; 411. Second connecting block; 5. Spring; 6. Spring limiting block; 7. Opening rod support plate; 8. Prying opening rod; 9. Opening rod fulcrum shaft; 10. Built-in small spring. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 A self-centering multi-station fixture includes a housing 1 made of aluminum alloy to reduce weight and improve stability. An inclined clamping push block 2 is slidably connected inside the housing 1. The inclined clamping push block 2 has a guide groove that cooperates with the guide structure inside the housing 1 to ensure the sliding stability of the inclined clamping push block 2. A first slider 3 is slidably connected inside the housing 1. A first clamping block 31 is fixedly connected to the upper end of the first slider 3, and a first connecting block 311 is fixedly connected to the lower end of the first clamping block 31. The first connecting block 311 is slidably connected inside the first slider 3.

[0022] Please see Figure 2-4 The housing 1 has a second slider 4 slidably connected inside. The upper end of the second slider 4 is fixedly connected to a second clamping block 41, and the lower end of the second clamping block 41 is fixedly connected to a second connecting block 411. The second slider 4 has a second connecting block 411 slidably connected inside. The first connecting block 311 and the second connecting block 411 are distributed in a V-shape inside the housing 1. The first slider 3 and the second slider 4 are located on both sides inside the housing 1 and are symmetrically arranged to realize the self-centering function of the clamping block. The housing 1 has a spring 5 slidably connected inside. The lower end of the housing 1 is fixedly connected to a spring limiting block 6. One end of the spring 5 contacts the spring limiting block 6, and the other end of the spring 5 contacts the inclined pressing and pushing block 2.

[0023] Please see Figure 2-4The spring limiting block 6 is provided with a buffer pad to reduce the impact force of the spring 5 when it is reset, thereby improving the stability and service life of the device. The housing 1 is provided with an opening rod support plate 7. The prying opening rod 8 is slidably connected to the opening rod support plate 7. The prying opening rod 8 is provided with a built-in small spring 10 inside. One end of the built-in small spring 10 contacts the prying opening rod 8, and the other end of the built-in small spring 10 contacts the opening rod support plate 7. The elastic force of the built-in small spring 10 is less than that of the spring 5, which is used to ensure that the opening rod support plate 7 and the prying opening rod 8 maintain appropriate contact during operation. The prying opening rod 8 is provided inside the housing 1. The surface of the prying opening rod 8 is provided with anti-slip texture to improve the stability and reliability during operation. The prying opening rod 8 is slidably connected to the inclined pressing push block 2. The inclined pressing push block 2 is provided with an opening rod fulcrum shaft 9 inside. The opening rod fulcrum shaft 9 is rotatably connected to the prying opening rod 8.

[0024] The specific implementation process of this utility model is as follows: This clamp is fixed in a multi-station type and can be installed vertically or horizontally; the inclined pressing push block 2 is moved by the force of the spring 5, so that the inclined surface of the inclined pressing push block 2 cooperates with the inclined surfaces of the first slider 3 and the second slider 4 to press the first clamping block 31 and the second clamping block 41 inward at the same time, achieving a self-centering effect; to open, an external force is required to make the prying opening rod 8 downward, so that the prying opening rod 8 drives the inclined pressing push block 2 to move, so that the inclined pressing push block 2 squeezes the spring 5, so that the inclined pressing push block 2 slides out from the first slider 3 and the second slider 4, thereby releasing the limit of the first clamping block 31 and the second clamping block 41.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-centering multi-station fixture, comprising a housing (1), characterized in that: The housing (1) is internally slidably connected to an inclined pressing and pushing block (2). The housing (1) is internally slidably connected to a first slider (3). The upper end of the first slider (3) is fixedly connected to a first clamping block (31), and the lower end of the first clamping block (31) is fixedly connected to a first connecting block (311). The first slider (3) is internally slidably connected to a first connecting block (311). The housing (1) is internally slidably connected to a second slider (4). The upper end of the second slider (4) is fixedly connected to a second clamping block (41). (41) is fixedly connected to the lower end of the second connecting block (411). The second connecting block (411) is slidably connected inside the second slider (4). The first connecting block (311) and the second connecting block (411) are distributed in a V-shape inside the housing (1). The housing (1) is provided with a prying opening rod (8). The prying opening rod (8) is slidably connected to the inclined pressing push block (2). The inclined pressing push block (2) is provided with an opening rod fulcrum shaft (9). The opening rod fulcrum shaft (9) is rotatably connected to the prying opening rod (8).

2. The self-centering multi-station fixture according to claim 1, characterized in that: The first slider (3) and the second slider (4) are located on both sides inside the housing (1) and are symmetrically arranged to realize the self-centering function of the clamping block.

3. The self-centering multi-station fixture according to claim 1, characterized in that: The inclined pressing push block (2) is provided with a guide groove, which cooperates with the guide structure inside the housing (1) to ensure the sliding stability of the inclined pressing push block (2).

4. A self-centering multi-station fixture according to claim 1, characterized in that: The surface of the pry bar (8) is provided with anti-slip texture to improve stability and reliability during operation.

5. A self-centering multi-station fixture according to claim 1, characterized in that: The housing (1) is provided with an opening rod support plate (7), the prying opening rod (8) is slidably connected to the opening rod support plate (7), and the prying opening rod (8) is provided with a built-in small spring (10). One end of the built-in small spring (10) is in contact with the prying opening rod (8), and the other end of the built-in small spring (10) is in contact with the opening rod support plate (7). The elastic force of the built-in small spring (10) is less than that of the spring (5) to ensure that the opening rod support plate (7) and the prying opening rod (8) maintain appropriate contact during operation.

6. A self-centering multi-station fixture according to claim 1, characterized in that: A spring (5) is slidably disposed inside the housing (1). A spring limiting block (6) is fixedly connected to the lower end of the housing (1). One end of the spring (5) is in contact with the spring limiting block (6), and the other end of the spring (5) is in contact with the inclined pressing push block (2). A buffer pad is provided on the spring limiting block (6) to reduce the impact force of the spring (5) when it is reset, thereby improving the stability and service life of the device.

7. A self-centering multi-station fixture according to claim 1, characterized in that: The housing (1) is made of aluminum alloy to reduce weight and improve its stability.

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