Auxiliary clamping fixture

Abstract

The utility model provides an auxiliary clamping fixture. The auxiliary clamping fixture comprises a cushion block, a vacuum suction cup fixture arranged at the upper end of the cushion block, an air cylinder arranged at the upper end of the vacuum suction cup fixture, a clamping plate arranged at the output end of the air cylinder, a groove and a limiting groove formed in the upper end of the vacuum suction cup fixture, a limiting plate placed in the groove, and a machined product placed at the upper end of the limiting plate. According to the auxiliary clamping fixture, by arranging structures such as a vacuum suction cup fixture and a clamping plate, a machined product on a limiting plate is limited and fixed, a cushion block is fixedly installed on a CNC machine tool workbench, the machined product is placed at the upper end of the limiting plate, the product is preliminarily positioned, and the vacuum suction cup fixture is started; a machined product is firmly adsorbed to the clamp through vacuum adsorption force, then the air cylinder is used for pushing the clamping plate to further limit and fix the limiting plate, the product is prevented from shaking left and right in the machining process, then the product machining stability is improved, operation is convenient, the clamping speed is high, clamping is stable, and the production efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC processing equipment, and more specifically to an auxiliary clamping fixture. Background Art

[0002] With the rapid development of science and technology, in the hardware processing and manufacturing industry, the production and manufacturing process has become more automated. Vacuum suction cups have played a coherent role in all aspects of hardware processing and manufacturing, accelerating production efficiency and improving manpower efficiency. However, in the existing technology, vacuum suction cups can only fix one product when in use, and the clamping information is low. Vacuum suction cups often have uneven suction, resulting in unbalanced suction, which leads to changes in placement and inaccuracy, resulting in errors in subsequent work, resulting in unqualified products, reduced product quality, increased product scrap rate, reduced production efficiency, increased labor, and increased economic costs.

[0003] The utility model can make the product more stable during processing, and at the same time has the effects of fast clamping speed and stable clamping, effectively improving production efficiency. Utility Model Content

[0004] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides an auxiliary clamping fixture.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary clamping fixture, comprising: a pad, a vacuum suction cup clamp is provided on the upper end of the pad, a cylinder is provided on the upper end of the vacuum suction cup clamp, a clamping plate is provided on the output end of the cylinder, a groove and a limit groove are opened on the upper end of the vacuum suction cup clamp, and a limit plate is placed inside the groove.

[0006] A further preferred solution is that the cylinder is installed inside the limiting groove by means of bolts, and the inner side of the clamping plate is close to the outer surface of the groove.

[0007] A further preferred solution is that the upper end of the splint is flush with the upper end of the limit plate, the cross-section of the splint is in a "concave" shape, a processed product is placed on the upper end of the limit plate, and the upper end of the processed product and the upper end of the limit plate are in the same horizontal plane.

[0008] A further preferred solution is that a connecting hole is provided through the interior of the groove, and the connecting hole is connected to the vacuum device inside the vacuum suction cup fixture.

[0009] A further preferred solution is that a gasket is arranged around the outer surface of the connecting hole, and the gasket is rectangular.

[0010] A further preferred solution is that a plurality of support particles are provided at the bottom end of the inner wall of the groove, and the support particles are cylindrical.

[0011] Beneficial effects:

[0012] 1. The limiting plate is limited by a vacuum suction cup fixture, and the processed product is placed on the upper end of the limiting plate. The limiting plate performs preliminary positioning of the product under the joint action of the groove and the limiting slot. Then, the vacuum suction cup fixture is started, and the gasket plays a sealing role to prevent air from leaking from the gap between the connecting hole and the inner wall of the groove, ensuring the effectiveness of the vacuum suction. The vacuum adsorption force firmly adsorbs the processed product on the fixture. At the same time, the support particles at the bottom end of the inner wall of the groove provide a certain support height for the processed product, so that a gap is formed between the product and the bottom of the groove, which is conducive to the discharge of air and enhances the effect of vacuum adsorption. In addition, the distribution of multiple support particles makes the product more evenly stressed, reducing local excessive force that causes product deformation, making the processed product more convenient and stable when limited.

[0013] 2. A clamping plate is provided and the cylinder is used to drive the clamping plate to move. After the limit plate and the processed product are limited by the vacuum suction cup clamp, the cylinder is used to drive the clamping plate to contact the outer surface of the limit plate, and then continuously apply force so that the clamping plate limits the limit plate, and then the limit plate is further fixed. The cylinder supports the blank so that it is in place and will no longer shift left or right, ensuring that the product is firmly clamped during the processing and is not easy to loosen. It is suitable for processed products of various shapes and sizes, and can be adjusted and optimized according to the needs of different products. The limit plate limits multiple processed products, effectively improving the processing efficiency of the device;

[0014] 3. This auxiliary clamping fixture, through the provision of a vacuum suction cup fixture and a splint and other structures, limits and fixes the processed products on the limit plate, making the processed products more convenient and stable during processing. The pad is fixedly installed on the CNC machine tool workbench, and the processed product is placed on the upper end of the limit plate. The limit plate performs preliminary positioning of the product under the joint action of the groove and the limit slot. The vacuum suction cup fixture is started, and the vacuum adsorption force firmly adsorbs the processed product on the fixture. The cylinder is then used to push the splint to further limit and fix the limit plate, effectively preventing the processed product from shaking left and right during processing, thereby improving the stability of product processing. It is easy to operate, has a fast clamping speed and stable clamping, and effectively improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall decomposition structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the vacuum suction cup clamp of the present utility model.

[0018] Figure 1-3In: 1. Pad; 2. Cylinder; 201. Clamp; 3. Vacuum suction cup fixture; 301. Groove; 302. Limiting groove; 303. Connecting hole; 304. Gasket; 305. Support particle; 4. Limiting plate; 401. Processed product. DETAILED DESCRIPTION

[0019] The following is a combination of the appended examples of the present invention Figure 1-Figure 3 , clearly and completely describe the technical solutions in the embodiments of the present utility model.

[0020] See also Figure 1-3In the embodiment of the utility model, an auxiliary clamping fixture includes: a pad 1, a vacuum suction cup fixture 3 is provided on the upper end of the pad 1, a cylinder 2 is provided on the upper end of the vacuum suction cup fixture 3, a clamping plate 201 is provided on the output end of the cylinder 2, a groove 301 and a limiting groove 302 are provided on the upper end of the vacuum suction cup fixture 3, a limiting plate 4 is placed inside the groove 301, and a processed product 401 is placed on the upper end of the limiting plate 4; the pad 1 provides a stable basic support for the entire fixture, ensuring that the fixture remains stable during work and preventing shaking from having an adverse effect on the processing accuracy, and the processed product 401 is firmly fixed by the vacuum adsorption force, and the vacuum adsorption has uniform force , will not cause damage to the surface of the product, etc., and is especially suitable for the processing of products with high surface requirements. The groove 301 provides a placement space for the limit plate 4, and the limit groove 302 can limit the position of the limit plate 4 to ensure that the limit plate 4 is in the correct position, thereby ensuring the accurate placement and positioning of the processed product 401. The cylinder 2 provides power for the splint 201, so that the splint 201 can clamp the processed product 401. Under the action of the cylinder 2, the splint 201 cooperates with the vacuum suction cup fixture 3 to clamp and fix the processed product 401 from above, further enhancing the stability of the product during the processing process. The limit plate 4 is placed Placed in the groove 301, it provides bottom support and preliminary positioning for the processed product 401, ensuring that the position of the processed product 401 on the fixture is accurate, which is convenient for subsequent processing operations. First, the pad 1 is fixedly installed on the CNC machine tool workbench, and the processed product 401 is placed on the upper end of the limit plate 4. The limit plate 4 performs preliminary positioning of the product under the action of the groove 301 and the limit slot 302. Then, the vacuum suction cup fixture 3 is started to firmly adsorb the product on the fixture through vacuum adsorption force. Then, the cylinder 2 is actuated to push the clamp 201 downward and work together with the vacuum suction cup fixture 3 to clamp the processed product 401 from above. Ensure that the product will not move or shake during the processing. Through the cooperation of the limit plate 4, the groove 301 and the limit groove 302, the processed product 401 can be accurately positioned to improve the processing accuracy. The dual fixing method of the vacuum suction cup clamp 3 and the clamping plate 201 ensures that the product is firmly clamped during the processing and is not easy to loosen. It is suitable for processed products 401 of various shapes and sizes, and can be adjusted and optimized according to the needs of different products. The vacuum adsorption method will not cause damage to the product surface. It is suitable for the processing of products with high surface requirements. It has a simple structure and is easy to operate. It can quickly realize the clamping and disassembly of the product and improve production efficiency.

[0021] The upper end of the clamping plate 201 is flush with the upper end of the limiting plate 4, and the cross section of the clamping plate 201 is in the shape of a "concave" character, and the upper end of the processed product 401 and the upper end of the limiting plate 4 are in the same horizontal plane; the limiting groove 302 provides a clear installation position for the cylinder 2, so that the cylinder 2 can accurately cooperate with the clamping plate 201 to achieve the clamping operation of the processed product 401, and the inner side of the clamping plate 201 is close to the outer surface of the groove 301, so that the clamping plate 201 is pushed by the cylinder 2 to be closer to the processed product 401, thereby better playing the clamping effect, and the outer surface close to the groove 301 can also ensure that the clamping plate 201 will not interfere with the groove 301 part of the vacuum suction cup fixture 3 when clamping the product, thereby ensuring the stable placement of the limiting plate 4 and the processed product 401, and the upper end of the clamping plate 201 is flush with the upper end of the limiting plate 4 The flatness allows the splint 201 to form a flat supporting surface together with the limit plate 4 when clamping the product, further enhancing the support and fixation effect on the processed product 401. The flush design also facilitates operation when clamping the product, so that the product can be placed on the limit plate 4 more quickly and accurately, and firmly fixed under the action of the splint 201. The groove 301 with a "concave" cross-sectional design can better adapt to the shape of the processed product 401, increase the contact area with the product, and improve the uniformity of the clamping force. It can to a certain extent avoid the situation where the splint 201 causes excessive local pressure on the product surface, reducing the risk of product damage. The upper end of the processed product 401 and the upper end of the limit plate 4 are at the same horizontal plane, which can ensure that the height of the processed product 401 on the fixture is consistent, which is convenient for subsequent processing operations. Being at the same horizontal plane can also make the cutting force during processing more evenly distributed on the product, thereby improving processing accuracy and quality.

[0022] The cam 304 is provided on the outer surface of the cam 303 so that the cam 304 can be fixed to the workbench 301 and the workbench 301 is provided with a plurality of support particles 305 on the inner surface of the cam 303. The support particles 305 are cylindrical. The cam 304 is provided on the inner surface of the cam 303 so that the cam 304 can be fixed to the workbench 301 and the workbench 301 is provided with a plurality of support particles 305 on the inner surface of the cam 303. The support particles 305 are cylindrical. The cam 304 is provided on the outer surface of the cam 303 so that the cam 304 can be fixed to the workbench 301 and the workbench 301 is provided with a plurality of support particles 305 on the inner surface of the cam 303. When the vacuum suction cup fixture 3 is working, the gasket 304 can prevent air from leaking from the gap between the connecting hole 303 and the inner wall of the groove 301, ensuring the effectiveness of the vacuum suction. When the processed product 401 is placed in the groove 301, the gasket 304 can play a certain buffering role, reducing the direct contact between the product and the edge of the connecting hole 303, and reducing the risk of product damage. The main function of the support particles 305 is to provide a certain support height for the processed product 401 to prevent the product from directly and completely contacting the bottom of the groove 301. When the vacuum suction cup fixture 3 adsorbs the processed product 401, the support particles 305 can form a certain gap between the product and the bottom of the groove 301, which is conducive to the discharge of air, thereby enhancing the effect of vacuum adsorption. The distribution of multiple support particles 305 can make the product more evenly stressed when being adsorbed, reducing local excessive stress that causes product deformation. The support particles 305 can avoid direct friction between the product surface and the bottom of the groove 301, play a protective role on the product surface, and make the processed product 401 more stable during processing.

[0023] Working principle: First, the pad 1 is fixedly installed on the CNC machine tool workbench, and 12 processed products 401 are placed on the upper end of the limit plate 4. The limit plate 4 performs preliminary positioning of the product under the joint action of the groove 301 and the limit groove 302. Then, the vacuum suction cup fixture 3 is started, the vacuum suction switch valve is opened, and the vacuum suction force is transmitted to the groove 301 area through the connecting hole 303 connected to the vacuum device inside the vacuum suction cup fixture 3 inside the groove 301. At this time, the gasket 304 plays a sealing role to prevent air from leaking from the gap between the connecting hole 303 and the inner wall of the groove 301, ensuring the effectiveness of the vacuum suction force. The vacuum adsorption force firmly adsorbs the processed product 401 on the fixture. At the same time, the groove 3 01 The support particles 305 at the bottom end of the inner wall provide a certain support height for the processed product 401, so that a gap is formed between the product and the bottom of the groove 301, which is conducive to the discharge of air and enhances the effect of vacuum adsorption. In addition, the distribution of multiple support particles 305 makes the product more evenly stressed, reduces local excessive stress that causes product deformation, and avoids direct friction between the product surface and the bottom of the groove 301, thereby protecting the product surface. Subsequently, the cylinder 2 is actuated. The cylinder 2 is installed inside the limit groove 302 by bolts. Its position is clear and can accurately cooperate with the splint 201. The cylinder 2 pushes the splint 201 downward, and the inner side of the splint 201 is close to the outer surface of the groove 301. Under the action of the cylinder 2, it is more closely pressed against the outer surface of the groove 301. The clamping plate 201 is close to the processed product 401, plays a clamping role, and will not interfere with the groove 301 part of the vacuum suction cup clamp 3, ensuring the stable placement of the limit plate 4 and the processed product 401. The cross-section of the clamping plate 201 is in the shape of a "concave", which can better adapt to the shape of the processed product 401, increase the contact area with the product, improve the uniformity of the clamping force, avoid excessive local pressure on the product surface, and reduce the risk of product damage. The upper end of the clamping plate 201 is flush with the upper end of the limit plate 4, and together with the limit plate 4, a flat supporting surface is formed, which further enhances the support and fixing effect of the processed product 401, facilitates operation when clamping the product, and enables the product to be placed on the limit plate 4 more quickly and accurately, and The clamp 201 is firmly fixed, and the upper end of the processed product 401 is in the same horizontal plane as the upper end of the limit plate 4, ensuring that the height of the processed product 401 on the fixture is consistent, which is convenient for subsequent processing operations. At the same time, the cutting force during the processing is more evenly distributed on the product, thereby improving the processing accuracy and quality. Through the dual fixing method of the vacuum suction cup clamp 3 and the clamp 201, it is ensured that the product is firmly clamped during the processing and is not easy to loosen. It is suitable for processed products 401 of various shapes and sizes, and can be adjusted and optimized according to the needs of different products. This type of vacuum suction cup clamp 3 has a simple structure, is easy to operate, has a fast clamping speed, is stable in clamping, can quickly realize the clamping and disassembly of the product, and improves production efficiency.

Claims

1. An auxiliary clamping fixture, comprising: A pad (1) is characterized in that: a vacuum suction cup fixture (3) is provided at the upper end of the pad (1), a cylinder (2) is provided at the upper end of the vacuum suction cup fixture (3), a clamping plate (201) is provided at the output end of the cylinder (2), a groove (301) and a limiting groove (302) are provided at the upper end of the vacuum suction cup fixture (3), and a limiting plate (4) is placed inside the groove (301).

2. The auxiliary clamping fixture according to claim 1, characterized in that: The cylinder (2) is mounted inside the limiting groove (302) by means of bolts, and the inner side of the clamping plate (201) is close to the outer surface of the groove (301).

3. The auxiliary clamping fixture according to claim 1, characterized in that: The upper end of the clamping plate (201) is flush with the upper end of the limiting plate (4); the cross section of the clamping plate (201) is in a "concave" shape; a processed product (401) is placed on the upper end of the limiting plate (4); and the upper end of the processed product (401) and the upper end of the limiting plate (4) are in the same horizontal plane.

4. The auxiliary clamping fixture according to claim 1, characterized in that: A connecting hole (303) is provided inside the groove (301), and the connecting hole (303) is connected to the vacuum device inside the vacuum suction cup fixture (3).

5. The auxiliary clamping fixture according to claim 4, characterized in that: A gasket (304) is arranged around the outer surface of the connection hole (303), and the gasket (304) is rectangular.

6. The auxiliary clamping fixture according to claim 1, characterized in that: A plurality of support particles (305) are provided at the bottom end of the inner wall of the groove (301), and the support particles (305) are cylindrical.

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