Pneumatic clamp mistake proofing device

Abstract

The utility model relates to the technical field of pneumatic clamps, and discloses a pneumatic clamp mistake proofing device which comprises an outer shell and an arranged device body, and the whole outer shell is composed of a front protection plate, a rear protection plate, side protection plates and a top and bottom protection plate. The limiting grooves are formed in the front and rear protection plates, positioning grooves are formed in the two sides of the top and bottom of each side protection plate, and positioning blocks are installed at the front and rear ends of the two sides of the top and bottom protection plate; and the limiting rods correspond to the limiting grooves, the rear ends of the limiting rods penetrate through the outer sides of the side face protection plates, extend inwards and are connected with limiting plates, and the surfaces of the limiting rods are sleeved with reset springs. According to the pneumatic clamp mistake proofing device, the positioning blocks of the top and bottom protection plates are connected with the positioning grooves of the side protection plates in a clamped mode, the front and rear protection plates are attached to the side protection plates, the outer ends of the limiting rods extend to the limiting grooves to rotate, the limiting rods and the limiting grooves are staggered under the action of the limiting plates and the reset springs, and in this way, quick disassembly and quick assembly are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic clamps, in particular to an anti-error device for pneumatic clamps. Background Art

[0002] A pneumatic clamp is a clamp that uses air pressure as a power source to clamp and position the workpiece. It plays an increasingly important role in modern manufacturing, and can significantly improve production efficiency and reduce production costs. Pneumatic clamps are mainly composed of a gas-liquid booster cylinder, a clamp body, and a positioning device. Compressed air is converted into a strong pressure through the gas-liquid booster cylinder, which drives the clamp body to move, so that the clamp body and the positioning device generate clamping force and positioning force, thereby achieving the clamping and positioning of the workpiece. In order to ensure the stability and accuracy of the workpiece during processing, testing or assembly, pneumatic clamps need to use error-proofing devices.

[0003] Common pneumatic clamp error-proofing devices are usually composed of control valves, trigger mechanisms, and serial air circuits. When the device is installed on the pneumatic clamp, the sensor, switch, or other detection element of the error-proofing device will begin to detect the presence and position of the workpiece. When the workpiece is correctly placed and meets the preset trigger conditions, the sensor will send a signal to the control valve, and the control valve will open to make the air circuit unobstructed. Otherwise, the control valve will not open. This is the common structure and use of pneumatic clamp error-proofing devices. Traditional pneumatic clamp error-proofing devices are usually installed on the top of the base, and the position of the workpiece placed on the base is detected by sensors. When the workpiece is clamped and fixed for processing, the sputtering debris generated by the workpiece processing will collide with the sensor of the device, causing damage to the sensor. Some pneumatic clamp error-proofing devices have a protective shell, and the device is placed inside the shell for installation, and the shell provides protection. However, in this way, since the protective shell is usually an integrated structure, when providing protection for the device, the surface of the shell will inevitably come into contact with debris, causing damage. After a long time, the shell needs to be replaced, but the integrated protective shell is not easy to disassemble and assemble, and the purpose of quick disassembly and assembly cannot be achieved. For this reason, a pneumatic clamp error prevention device is proposed. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a pneumatic clamp error prevention device to solve the technical problem that the protective housing cannot be quickly disassembled and assembled.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pneumatic clamp error prevention device, comprising:

[0008] An outer shell, and a device body arranged at the center of the inner cavity of the outer shell, wherein the outer shell as a whole is composed of front and rear guard plates, side guard plates, and top and bottom guard plates;

[0009] Limiting grooves are arranged around the front of the front and rear guard plates, and positioning grooves are provided on both sides of the top and bottom of the side guard plates. Positioning blocks are installed at the front and rear ends of both sides of the top and bottom guard plates and correspond to the positioning grooves;

[0010] The limiting rod is arranged around the front and back sides of the side guard plate, and the limiting rod corresponds to the limiting groove. The rear end of the limiting rod penetrates the outer side of the side guard plate and extends inward, and is connected to the limiting plate, and the surface of the limiting rod is sleeved with a reset spring. After being connected by the positioning block of the top and bottom guard plates and the positioning groove of the side guard plates, the front and rear guard plates are fitted with the side guard plates, and the outer end of the limiting rod extends to the outside through the limiting groove for rotation, and under the action of the limiting plate and the reset spring, the outer end of the limiting rod is misaligned and tightly fitted with the outer end of the limiting groove. On the one hand, it is convenient for quick disassembly and installation of the external shell, and convenient for replacement; on the other hand, the front and rear guard plates, side guard plates and top and bottom guard plates can be removed separately, and the whole cannot be replaced, which reduces the cost consumption.

[0011] Preferably, a sensor is installed at the center of the front of the device body, and a control air valve is added at the center of the back of the device body, and a series air path is connected. The device body performs error-proof operation through the sensor, the control air valve and the series air path.

[0012] Preferably, one end of the series air circuit extends outward through the inner wall of the corresponding front and rear guard plates, and the corresponding surfaces of the front and rear guard plates are provided with heat dissipation holes. The pneumatic clamp can be started or closed through the series air circuit, and heat is dissipated through the heat dissipation holes.

[0013] Preferably, guide columns are vertically installed at the center positions of both sides of the inner cavity of the outer shell, and the top and bottom ends of the guide columns are respectively inserted and connected with the inner walls of the top and bottom guard plates, so that the guide columns and the top and bottom guard plates can be easily disassembled.

[0014] Preferably, the upper and lower parts of the outer surface of the guide column are sleeved with a compression spring, and the upper and lower parts of the center of the outer surface of the guide column are slidably connected with a sliding block, which fits the compression spring. The sliding block moves downward along the outer surface of the guide column under the action of the compression spring.

[0015] Preferably, the top and bottom of the device body are both laterally provided with fixing clamps, and the center positions of both sides of the fixing clamps are connected to the inner side surfaces of the corresponding sliding blocks. The fixing clamps clamp and fix the device body under the drive of the sliding block, and under the continuous pressure of the extrusion spring, the stability of the connection between the fixing clamps and the device body is ensured, and the device bodies of different sizes can be clamped and fixed within a certain range, ensuring the stability of the device body inside the outer shell.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the utility model provides a pneumatic clamp error prevention device, which has the following

[0018] Beneficial effects:

[0019] The pneumatic clamp error prevention device is connected by clamping between the positioning blocks of the top and bottom guard plates and the positioning grooves of the side guard plates, and then the front and rear guard plates are fitted with the side guard plates, and the outer end of the limit rod is extended to the outside through the limit groove for rotation, and under the action of the limit plate and the return spring, the outer end of the limit rod and the outer end of the limit groove are misaligned and tightly fitted. This method is convenient for quick disassembly and installation of the outer shell body and replacement. On the other hand, the front and rear guard plates, side guard plates and top and bottom guard plates can be removed separately, and the whole cannot be replaced, thereby reducing cost consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the separation structure of the outer shell of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the device body and the fixed clamping plate of the utility model;

[0023] Figure 4 It is a schematic diagram of the right side structure of the side guard plate of the utility model in section.

[0024] In the figure: 1. outer shell; 2. device body; 3. front and rear guard plates; 4. side guard plates; 5. top and bottom guard plates; 6. limit grooves; 7. positioning grooves; 8. limit rods; 9. limit plates; 10. reset springs; 11. positioning blocks; 12. sensors; 13. control valves; 14. series air circuits; 15. fixed splints; 16. guide columns; 17. sliding blocks; 18. extrusion springs. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] The utility model provides a technical solution, a pneumatic clamp error prevention device, comprising: Figure 1 , an outer shell 1, and a device body 2 arranged at the center of the inner cavity of the outer shell 1, and the outer shell 1 as a whole is composed of front and rear guard plates 3, side guard plates 4 and top and bottom guard plates 5;

[0027] See also Figure 2 , the limiting grooves 6 are arranged around the front of the front and rear guard plates 3, and the top and bottom sides of the side guard plates 4 are provided with positioning grooves 7, and the front and rear ends of both sides of the top and bottom guard plates 5 are installed with positioning blocks 11, which correspond to the positioning grooves 7;

[0028] See also Figure 4 The limiting rod 8 is arranged around the front and back sides of the side guard plate 4, and the limiting rod 8 corresponds to the limiting groove 6. The rear end of the limiting rod 8 penetrates the outer side of the side guard plate 4 and extends inward, and is connected to the limiting plate 9, and the surface of the limiting rod 8 is sleeved with a return spring 10. After the positioning block 11 of the top and bottom guard plates 5 is connected with the positioning groove 7 of the side guard plate 4, the front and rear guard plates 3 and the side guard plates 4 are fitted together, and the outer end of the limiting rod 8 extends to the outside through the limiting groove 6 and rotates, and under the action of the limiting plate 9 and the return spring 10, the outer end of the limiting rod 8 and the outer end of the limiting groove 6 are misaligned and tightly fitted. On the one hand, it is convenient to quickly disassemble and install the outer shell 1, and it is convenient to replace; on the other hand, the front and rear guard plates 3, the side guard plates 4 and the top and bottom guard plates 5 can be removed separately, and the whole cannot be replaced, which reduces the cost consumption.

[0029] See also Figure 3, a sensor 12 is installed at the center of the front of the device body 2, and a control air valve 13 is added at the center of the back of the device body 2, and a series air circuit 14 is connected. The device body 2 performs error-proof operation through the sensor 12, the control air valve 13 and the series air circuit 14. One end of the series air circuit 14 extends outward through the corresponding inner wall of the front and rear guard plates 3, and the corresponding surfaces of the front and rear guard plates 3 are provided with heat dissipation holes. The pneumatic clamp can be started or closed through the series air circuit 14, and heat is dissipated through the heat dissipation holes. Guide columns 16 are vertically installed at the center positions on both sides of the inner cavity of the outer shell 1, and the top and bottom ends of the guide columns 16 are respectively inserted and connected between the inner walls of the top and bottom guard plates 5. The guide columns 16 and the top and bottom guard plates 5 can be easily disassembled. The upper and lower parts of the outer surface of the guide column 16 are sleeved with extrusion springs 18, and the upper and lower parts of the center of the outer surface of the guide column 16 are slidably connected with sliding blocks 17, and fit with the extrusion springs 18. The sliding block 17 moves downward along the outer surface of the guide column 16 under the action of the squeezing spring 18. The top and bottom of the device body 2 are both laterally provided with fixing clamps 15, and the center positions of both sides of the fixing clamps 15 are connected to the inner side surfaces of the corresponding sliding blocks 17. The fixing clamps 15 clamp and fix the device body 2 under the drive of the sliding block 17, and under the continuous pressure of the squeezing spring 18, the stability of the connection between the fixing clamps 15 and the device body 2 is ensured, and the device bodies 2 of different sizes can be clamped and fixed within a certain range, ensuring the stability of the device body 2 inside the outer shell 1.

[0030] This solution: After the positioning blocks 11 of the top and bottom guard plates 5 are connected with the positioning grooves 7 of the side guard plates 4, the front and rear guard plates 3 are fitted with the side guard plates 4, and the outer end of the limit rod 8 is extended to the outside through the limit groove 6 for rotation, and under the action of the limit plate 9 and the reset spring 10, the outer end of the limit rod 8 is misaligned and tightly fitted with the outer end of the limit groove 6. The device body 2 is operated to prevent errors through the sensor 12, the control valve 13 and the series air path 14. The sliding block 17 moves downward along the outer surface of the guide column 16 under the action of the extrusion spring 18, and the fixed splint 15 clamps and fixes the device body 2 under the drive of the sliding block 17, and the stability of the connection between the fixed splint 15 and the device body 2 is ensured under the continuous pressure of the extrusion spring 18.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic clamp error prevention device, characterized in that: include: An outer shell (1), and a device body (2) arranged at the center of the inner cavity of the outer shell (1), and the outer shell (1) as a whole is composed of front and rear guard plates (3), side guard plates (4) and top and bottom guard plates (5); Limiting grooves (6) are arranged around the front sides of the front and rear guard plates (3), and positioning grooves (7) are provided on both sides of the top and bottom of the side guard plates (4). Positioning blocks (11) are installed at the front and rear ends of both sides of the top and bottom guard plates (5) and correspond to the positioning grooves (7); The limiting rod (8) is arranged around the front and back sides of the side guard plate (4), and the limiting rod (8) corresponds to the limiting groove (6). The rear end of the limiting rod (8) penetrates the outer side of the side guard plate (4) and extends inwardly, and is connected to the limiting plate (9), and the surface of the limiting rod (8) is sleeved with a return spring (10).

2. The pneumatic clamp error prevention device according to claim 1, characterized in that: A sensor (12) is installed at the center of the front face of the device body (2), and a control air valve (13) is added at the center of the back face of the device body (2), and is connected to a series air path (14).

3. The pneumatic clamp error prevention device according to claim 2, characterized in that: One end of the series air path (14) penetrates the inner wall of the corresponding front and rear guard plates (3) and extends outwards, and heat dissipation holes are provided at corresponding locations on the surfaces of the corresponding front and rear guard plates (3).

4. The pneumatic clamp error prevention device according to claim 1, characterized in that: Guide columns (16) are vertically installed at the center positions of both sides of the inner cavity of the outer shell (1), and the top and bottom ends of the guide columns (16) are respectively inserted and connected between the inner walls of the top and bottom guard plates (5).

5. The pneumatic clamp error prevention device according to claim 4, characterized in that: The upper and lower parts of the outer surface of the guide column (16) are sleeved with a compression spring (18), and the upper and lower parts of the center of the outer surface of the guide column (16) are slidably connected with a sliding block (17) and fit with the compression spring (18).

6. The pneumatic clamp error prevention device according to claim 5, characterized in that: The top and bottom of the device body (2) are both laterally provided with fixed clamping plates (15), and the center positions on both sides of the fixed clamping plates (15) are connected to the inner side surfaces of the corresponding sliding blocks (17).

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