Pneumatic accessory clamping jig

Abstract

The utility model discloses a pneumatic accessory clamping jig which is used for clamping optical communication module accessories and comprises a base, and a pneumatic assembly, an execution assembly, a connecting assembly and a clamping assembly are arranged on the base. The pneumatic assembly is fixed to one side face of the base and is in pneumatic connection with the execution assembly, and the execution assembly is arranged on the base and is in transmission connection with the clamping assembly through the connecting assembly. A product is placed on the clamping assembly, the pneumatic assembly drives the execution assembly to move in one direction when opened, the execution assembly drives the connecting assembly to move synchronously, and the connecting assembly pushes the clamping assembly to clamp the product. The pneumatic assembly drives the execution assembly to move in the opposite direction during ventilation, the execution assembly drives the connecting assembly to synchronously move back, and the connecting assembly pushes the clamping assembly back to loosen the product. A product is accurately positioned, fixed and clamped in a pneumatic mode, the force of each operation is the same, and the problem of product deformation caused by different manual locking force is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a pneumatic clamping fixture for accessories. Background Art

[0002] Optical communication module accessories usually have high precision, miniaturization and complex structural characteristics. Figure 1 As shown. Strict process control and precise operation are required during the production process. When processing these complex accessories, the existing jigs need to manually lock the cylinder on the back of the optical communication module accessories (the part indicated by the arrow). However, the force used for manual locking is different each time, and it is easy to shift during processing, resulting in inaccurate positioning, product deformation, inaccurate dimensions, and poor consistency in the structural dimensions of each product, which affects the quality of the product. Precise positioning cannot be achieved, and the same force cannot be used to fix and operate each time. In addition, the work efficiency of manual locking is low.

[0003] Therefore the prior art still needs to be improved and enhanced. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a pneumatic clamping fixture for accessories to solve the problem of product deformation caused by different manual locking forces.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pneumatic clamping fixture for accessories, used for clamping accessories of optical communication modules, comprising a base, on which a pneumatic component, an actuator component, a connecting component and a clamping component are arranged; the pneumatic component is fixed to one side of the base and pneumatically connected to the actuator component, and the actuator component is arranged on the base and is transmission-connected to the clamping component through the connecting component;

[0007] The product is placed on the clamping component, and when the pneumatic component is turned on, the actuator component drives the connecting component to move synchronously, and the connecting component pushes the clamping component to clamp the product;

[0008] The pneumatic component drives the actuator component to move in the opposite direction when the air is exchanged, and the actuator component drives the connecting component to move back synchronously, and the connecting component pushes back the clamping component to release the product.

[0009] In the pneumatic fixture for accessories, the pneumatic assembly includes an external air pipe, a pneumatic valve, a first adapter, a second adapter, a third adapter, a first air pipe, and a second air pipe;

[0010] The pneumatic valve is fixed on one side of the base. The external air pipe is installed in the air inlet at the top of the pneumatic valve through the first adapter. One end of the first air pipe is installed in the first air outlet at the top of the pneumatic valve through the third adapter. One end of the second air pipe is installed in the second air outlet at the top of the pneumatic valve through the second adapter. The other ends of the first air pipe and the second air pipe are connected to the actuating assembly.

[0011] In the described fitting pneumatic clamping fixture, the pneumatic assembly further includes two silencers. One exhaust hole is respectively arranged on both sides of the air inlet at the top of the pneumatic valve, and the two silencers are respectively installed in one exhaust hole.

[0012] In the described fitting pneumatic clamping fixture, the actuating assembly includes a first connecting piece, a cylinder, a cylinder support seat, a first flow regulating valve and a second flow regulating valve;

[0013] The cylinder support seat is installed on the concave platform at a corner of the base. The cylinder is placed on the concave platform and fixed to the side surface of the cylinder support seat. The piston rod of the cylinder is connected to one end of the first connecting piece. The vertical end of the first connecting piece is connected to the connecting assembly. The air outlets of the first flow regulating valve and the second flow regulating valve are installed in the two air holes at the top of the cylinder. The air inlet of the first flow regulating valve is communicated with the other end of the first air pipe. The air inlet of the second flow regulating valve is communicated with the other end of the second air pipe.

[0014] In the described fitting pneumatic clamping fixture, the connecting assembly includes a first vertical shaft, a second vertical shaft, a first connecting rod and a first connecting block;

[0015] One end of the first connecting rod provided with a first through hole is placed in the side groove of the vertical end of the first connecting piece; the first vertical shaft is inserted into the vertical end of the first connecting piece and the first through hole of the first connecting rod 17 and extends out from the bottom surface of the vertical end of the first connecting piece; both ends of the first vertical shaft are respectively fixed on the first connecting piece by a circlip; the other end of the first connecting rod provided with a second through hole is placed in the installation groove at one end of the first connecting block. The second vertical shaft is inserted into the first connecting block and the second through hole of the first connecting rod and extends out from the bottom surface of the first connecting block; both ends of the second vertical shaft are respectively fixed on the first connecting block by a circlip, and the other end of the first connecting block is connected to the clamping assembly.

[0016] In the described fitting pneumatic clamping fixture, the first vertical shaft is clamped in the upper and lower through holes of the vertical end of the first connecting piece and the first through hole of the first connecting rod, and the second vertical shaft is clamped in the upper and lower through holes of the first connecting block and the second through hole of the first connecting rod.

[0017] In the described fitting pneumatic clamping fixture, the clamping assembly includes a first cushion block, a second cushion block, a positioning table, a positioner, three locking pieces and a centering shaft;

[0018] The first pad and the second pad are respectively fixed at two ends of the base, and the two ends of the positioning platform are correspondingly fixed on the first pad and the second pad. The positioning platform is provided with a clamping groove for accommodating the product, and the upper end of the centering shaft passes through the through hole in the middle of the locator and is inserted and fixed on the clamping groove. The locator is located below the clamping groove, and the side of the locator is connected to the first connecting block. The top surface of the locator is provided with arc-shaped grooves with the same number as the locking plates, and the bottom of the clamping groove is provided with arc-shaped through grooves with the same number and relative positions as the arc-shaped grooves. The bottoms of several locking plates are inserted into the arc-shaped grooves corresponding to the top surface of the locator, and the tops of several locking plates extend out from the arc-shaped through grooves at the bottom of the clamping grooves.

[0019] In the pneumatic clamping fixture for accessories, the inner side surface of the first connecting block is an arc surface, and the curvature of the arc surface is adapted to the side surface of the positioner.

[0020] In the pneumatic clamping fixture for accessories, the clamping assembly also includes an anti-stuck gasket, which is arranged at the bottom of the centering shaft, and a screw passes through the through hole in the center of the anti-stuck gasket and is inserted into the mounting hole at the bottom of the centering shaft.

[0021] In the pneumatic clamping fixture for accessories, a pin is provided at the bottom of the platform portion of the locking plate, and the pin is inserted into the arc-shaped slide groove; the upper surface of the platform portion of the locking plate abuts against the bottom surface of the positioning platform.

[0022] Compared with the prior art, the utility model provides a pneumatic clamping fixture for accessories, which is used to clamp accessories of optical communication modules, including a base, on which a pneumatic component, an actuator component, a connecting component and a clamping component are arranged; the pneumatic component is fixed to one side of the base and pneumatically connected to the actuator component, the actuator component is arranged on the base and is transmission-connected to the clamping component through the connecting component; the product is placed on the clamping component, and when the pneumatic component is turned on, the actuator component drives the connecting component to move synchronously, and the connecting component pushes the clamping component to clamp the product; when the pneumatic component is ventilated, the actuator component drives the connecting component to move synchronously, and the connecting component pushes the clamping component back to release the product. The pneumatic method is used to accurately position, fix and clamp the product, and the force of each operation is the same, which effectively solves the problem of product deformation caused by different manual locking forces, ensures that the processing of each product meets strict standards, reduces human errors, and improves production efficiency and consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the back side of an existing optical communication module accessory.

[0024] Figure 2 This is a structural schematic diagram of a pneumatic clamping fixture for accessories provided by the utility model from one perspective.

[0025] Figure 3 This is a structural schematic diagram of the pneumatic clamping fixture for accessories provided by the utility model from another perspective.

[0026] Figure 4 This is an exploded view of the pneumatic clamping fixture for accessories provided by the utility model.

[0027] Figure 5 This is a schematic diagram of the internal structure of the pneumatic clamping fixture for accessories provided by the utility model without the positioning platform.

[0028] Figure 6 A rotation schematic diagram of the positioner provided by the utility model. DETAILED DESCRIPTION

[0029] The utility model provides a pneumatic clamping fixture for accessories. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0030] Please also see Figures 2 to 4 The pneumatic fixture for accessories provided in the embodiment of the utility model is used to position, fix and clamp (including clamping and loosening) a product 100. The product is mainly Figure 1 The optical communication module accessory shown in the figure is specifically a pneumatic clamping of the cylinder on the back of the optical communication module accessory. The accessory pneumatic clamping fixture comprises a base 1, on which a pneumatic component, an actuator component, a connecting component and a clamping component are arranged; the pneumatic component is fixed to one side of the base 1 and pneumatically connected to the actuator component, the actuator component is arranged on the base 1 and is transmission-connected to the clamping component through the connecting component (i.e., the movement of the actuator component will pull the connecting component, and the connecting component will then pull the clamping component).

[0031] The product is placed on the clamping assembly for positioning and fixing. When the pneumatic assembly is turned on, the actuator assembly is driven to move in one direction, the actuator assembly drives the connecting assembly to move synchronously, and the connecting assembly pushes the clamping assembly to clamp the product. When the pneumatic assembly is ventilated, the actuator assembly is driven to move in the opposite direction, the actuator assembly drives the connecting assembly to move back synchronously, and the connecting assembly pushes the clamping assembly back to release the product. The base 1 supports and fixes the above-mentioned components.

[0032] The pneumatic clamping fixture for accessories uses pneumatic methods to accurately position, fix and clamp the product. The force of each operation is the same, which effectively solves the problem of product deformation caused by different manual locking forces, ensures that the processing of each product meets strict standards, reduces human errors, improves production efficiency and consistency, improves product quality and also saves operation time.

[0033] As Figure 3 and Figure 4 shown, in this embodiment, the pneumatic assembly includes an external air pipe 2, a pneumatic valve 3, a first adapter 4, a second adapter 5, a third adapter 6, a first air pipe 7 and a second air pipe 8; the pneumatic valve 3 is screwed and fixed on one side surface of the base 1, the external air pipe 2 is installed in the air inlet at the top of the pneumatic valve 3 through the first adapter 4, one end of the first air pipe 7 is installed in the first air outlet at the top of the pneumatic valve 3 through the third adapter 6, one end of the second air pipe 8 is installed in the second air outlet at the top of the pneumatic valve 3 through the second adapter 5, and the other ends of the first air pipe 7 and the second air pipe 8 are connected to the actuating assembly.

[0034] Taking Figure 3 the direction shown as an example, when the handle of the pneumatic valve 3 is pulled to the left, the clamping function is realized, and the external compressed air enters the pneumatic valve 3 through the external air pipe 2; when the handle of the pneumatic valve 3 is pulled to the right, the loosening function is realized, and the compressed air in the pneumatic valve 3 is discharged through the external air pipe 2. After the handle is pulled, it controls the compressed air to enter or discharge the actuating assembly through the two air pipes.

[0035] Preferably, in order to reduce the exhaust noise, the pneumatic assembly further includes two silencers 9. One exhaust hole is provided on each side of the air inlet at the top of the pneumatic valve 3, the two silencers 9 are respectively installed in one exhaust hole, and the external air pipe 2 is located in the middle of the two silencers 9.

[0036] The actuating assembly includes a first connecting member 10 (L-shaped), a cylinder 11, a cylinder support seat 12, a first flow regulating valve 13 and a second flow regulating valve 14; the cylinder support seat 12 is installed (screwed and fixed) on the L-shaped concave platform 29 at a corner of the base 1, the cylinder 11 is placed on the concave platform 29 and is screwed and fixed to the side surface (with a screw hole) of the cylinder support seat 12, the piston rod of the cylinder is connected (screwed and fixed) to one end of the first connecting member 10 (specifically, the short horizontal part of the L-shaped), the vertical end part (the long vertical part of the L-shaped) of the first connecting member 10 is connected to the connecting assembly, the air outlets of the first flow regulating valve 13 and the second flow regulating valve 14 are installed in the two air holes at the top of the cylinder 11, the air inlet of the first flow regulating valve 13 is communicated with the other end of the first air pipe 7, and the air inlet of the second flow regulating valve 14 is communicated with the other end of the second air pipe 8.

[0037] The pneumatic valve 3 and the cylinder 11 are pneumatically connected through two air pipes. The cylinder 11 is used to provide a pushing and pulling force in the horizontal direction, drive the first connecting member 10 to move back and forth, and drive the connecting assembly to move when the first connecting member 10 moves. The flow regulating valve is used to adjust the size of the air flow. A side groove is provided in the middle of the side surface of the vertical end part of the first connecting member 10 to provide a space for hinging when connecting with the connecting assembly.

[0038] Please refer to... togetherFigure 5 , the connecting component includes a first vertical shaft 15, a second vertical shaft 16, a first connecting rod 17 and a first connecting block 18; one end of the first connecting rod 17 with a first through hole is placed in the side groove at the vertical end of the first connecting member 10; the first vertical shaft 15 is inserted into the upper through hole on the top surface of the vertical end of the first connecting member 10, the first through hole of the first connecting rod 17 located in the side groove, and extends out from the lower through hole on the bottom surface of the vertical end of the first connecting member 10 in sequence from top to bottom; both ends of the first vertical shaft 15 are exposed on the top surface and the bottom surface of the vertical end of the first connecting member 10 respectively, and both ends of the first vertical shaft 15 are fixed on the first connecting member 10 by a snap ring 19 respectively. The other end of the first connecting rod 17 with a second through hole is placed in the installation groove at one end of the first connecting block 18. The second vertical shaft 16 is inserted into the upper through hole on the top surface of the first connecting block 18, the second through hole of the first connecting rod 17 located in the installation groove, and extends out from the lower through hole on the bottom surface of the first connecting block 18 in sequence from top to bottom; both ends of the second vertical shaft 16 are exposed on the top surface and the bottom surface of the first connecting block 18 respectively, and both ends of the second vertical shaft 16 are also fixed on the first connecting block 18 by a snap ring respectively. The other end of the first connecting block 18 is connected to the clamping component.

[0039] Taking Figure 5 the direction shown as an example, the first connecting block 18 is a cubic block with an arc surface on the inner side and flat surfaces on other sides. The radian of the arc surface is adapted to the side surface of the positioner in the clamping component, so that the arc surface can closely adhere to the side surface of the positioner. A through groove penetrating inside and outside is opened in the middle at the right end of the cubic block, that is, the installation groove; a hole is opened on the upper groove wall above the installation groove, which is the upper through hole on the top surface of the first connecting block 18, and a hole is opened on the lower groove wall below the installation groove, which is the lower through hole on the bottom surface of the first connecting block 18. Two installation holes penetrating inside and outside are opened at the left end of the cubic block, and the first connecting block 18 can be fixedly screwed to the positioner in the clamping component through the installation holes.

[0040] Through the clamping of the snap ring, it can prevent the first vertical shaft 15 from falling off from the upper and lower through holes of the first connecting member 10, and the second vertical shaft 16 from falling off from the upper and lower through holes of the first connecting block 18. The first vertical shaft 15 is clamped in the upper and lower through holes of the vertical end of the first connecting member 10 and the first through hole of the first connecting rod 17, and the second vertical shaft 16 is clamped in the upper and lower through holes of the first connecting block 18 and the second through hole of the first connecting rod 17. When the first connecting member 10 moves to the right, the first through hole of the first connecting rod 17 moves to the right and the second through hole is pulled to move to the right synchronously. The movement of the second through hole drives the first connecting block 18 to move to the right synchronously, so that the clamping component realizes the clamping function. When the first connecting member 10 moves to the left, the first through hole of the first connecting rod 17 moves to the left and the second through hole is pulled to move to the left synchronously. The movement of the second through hole drives the first connecting block 18 to move to the left synchronously, so that the clamping component realizes the loosening function.

[0041] Please refer to Figure 6The clamping assembly includes a first cushion block 20, a second cushion block 21, a positioning platform 22, a positioner 23, three locking plates 24 and a centering shaft 25; the first cushion block 20 and the second cushion block 21 are respectively fixed (screwed) at both ends of the base 1, and the two ends of the positioning platform 22 are correspondingly fixed on the first cushion block 20 and the second cushion block 21. The first cushion block 20 and the second cushion block 21 support the positioning platform 22, so that a accommodating cavity is formed between the positioning platform 22 and the base 1 through the support of the first cushion block 20 and the second cushion block 21. The positioning platform 22 is provided with a clamping groove 26 for accommodating the product, and the internal structure of the clamping groove 26 (such as some concave, convex, steps, etc.) matches the structure of the product (the product can be placed and completely fit); the centering shaft 25 The upper end passes through the through hole in the middle of the locator 23 and is inserted and fixed on the positioning platform 22 (specifically, the upper end of the centering shaft 25 is clamped and fixed in the mounting hole in the middle of the clamping groove 26), and the locator 23 is located below the clamping groove 26. The side of the locator 23 is provided with two screw holes (arranged up and down) that are screwed to the first connecting block 18. The top surface of the locator 23 is provided with arc-shaped grooves 27 with the same number as the locking plates. The bottom of the clamping groove 26 is provided with arc-shaped through grooves with the same number and relative positions as the arc-shaped grooves 27. The bottoms of several locking plates 24 are inserted into the arc-shaped grooves 27 corresponding to the top surface of the locator 23, and the tops of several locking plates 24 extend from the arc-shaped through grooves at the bottom of the clamping groove 26 and are spaced a preset distance (such as 1 to 2 mm) from the cylindrical space of the product.

[0042] The positioner 23 is cylindrical and is used to control the moving direction of the locking piece. The centering shaft 25 is used to center the positioner 23. The first connecting block 18 drives the positioner 23 to rotate around the centering shaft 25. The locking piece 24 is similar to an L-shaped shape. A pin is provided at the bottom of the platform portion of the locking piece 24. The pin is inserted into the arc-shaped slide groove 27 and moves back and forth. The upper surface of the platform portion of the locking piece 24 abuts against the bottom surface of the positioning platform 22 to play a blocking and limiting role, so as to prevent the locking piece 24 from falling off the positioner 23 when moving. The straight piece portion of the locking piece 24 is an arc-shaped piece, and its curvature is adapted to the outer ring of the cylinder of the product. The straight piece portion of each locking piece 24 passes through the arc-shaped through groove at the bottom of the clamping groove 26 and extends out. Before clamping, after the product is placed in the clamping groove 26, the straight piece portion of the locking piece 24 is spaced a preset distance from the outer ring of the cylinder, and is not clamped at this time.

[0043] This embodiment is designed with three locking pieces 24, which can make the product bear force evenly, in order to achieve the clamping effect. Figure 6Taking the direction shown as an example, the left ends of the arc-shaped sliding grooves 27 incline towards the middle (as shown by the dotted arrow), that is, the left ends of the arc-shaped sliding grooves 27 approach the center of the locator 23. The distance L1 from the center of the left end of the arc-shaped sliding groove 27 to the center of the locator 23 is 1 - 2 mm shorter than the distance L2 from the center of the right end of the arc-shaped sliding groove 27 to the center of the locator 23. When the locator 23 rotates along the direction shown by the upper arrow, the three locking pieces 24 move along the arc-shaped sliding grooves 27 to the left end, which is equivalent to gathering towards the center of the locator 23, thereby realizing the clamping of the product. When the locator 23 rotates along the direction shown by the lower arrow, the three locking pieces 24 move along the arc-shaped sliding grooves 27 to the right end, which is equivalent to spreading towards the periphery of the locator 23, thereby realizing the loosening of the product.

[0044] Based on the need for the locator 23 to rotate, the centering shaft 25 is located between the positioning table 22 and the base 1, and a preset gap needs to be left. If this gap is too narrow, it will be difficult for the locator 23 to rotate or get stuck. If it is too wide, the locator 23 will move up and down during the clamping process, resulting in problems with clamping and the locking piece 24 getting stuck with the locator 23. Then the clamping assembly further includes an anti-sticking gasket 28, which is arranged at the bottom of the centering shaft 25. An M6 screw passes through the through-hole in the center of the anti-sticking gasket 28 and inserts into the mounting hole at the bottom of the centering shaft 25. Through the clearance fit between the M6 screw and the mounting hole at the bottom of the centering shaft 25, the anti-sticking gasket 28 plays a role in limiting, that is, it can prevent the locking piece from getting stuck with the locator.

[0045] Preferably, the thickness of the locking piece 24 can also be adjusted, and an anti-slip pad is arranged at the part where the locking piece 24 extends out of the arc-shaped through groove, increasing the friction during clamping and making the clamping effect more stable.

[0046] It should be understood that a first vertical shaft 15, a second vertical shaft 16, a first connecting rod 17, a first connecting block 18, two snap rings 19, a locator 23, three locking pieces 24, a centering shaft 25 and a clamping groove 26 form a set of clamping structures. To improve production efficiency, multiple sets of clamping structures can be expanded, such as Figures 2 to 5 the two sets of clamping structures shown, and the number of corresponding devices increases accordingly. During specific implementation, the number of sets of clamping structures can continue to be expanded, and then the base 1, the positioning table 22 and the first connecting piece 10 are correspondingly lengthened, and the number of corresponding devices increases in sets.

[0047] Please continue to refer to Figures 2 to 6 and, taking the direction shown in Figure 5 as an example, place the product 100 into the clamping groove 26. At this time, there is a preset distance between the straight part of the locking piece 24 and the outer circle of the cylinder. The working principle of the accessory pneumatic clamping fixture is as follows:

[0048] Clamping operation: Pull the handle of the pneumatic valve 3 to the left. Compressed gas enters the cylinder 11 through the first air pipe 7 and the second air pipe 8. The piston rod of the cylinder 11 extends and pushes the first connecting piece 10 to move to the right. The first connecting rod 17 moves to the right and pulls the first connecting block 18 to move synchronously to the right. The first connecting block 18 drives the locator 23 to rotate along the Figure 5 direction shown by the upper arrow as shown, and the three locking pieces 24 move towards the left end of the arc-shaped chute 27 and gather towards the center of the locator 23, thereby realizing the clamping of the product.

[0049] Loosening operation: Pull the handle of the pneumatic valve 3 to the right. The compressed gas in the cylinder 11 is discharged from the external air pipe through the first air pipe 7 and the second air pipe 8. The piston rod of the cylinder 11 retracts and pulls the first connecting piece 10 to move to the left. The first connecting rod 17 moves to the left and drives the first connecting block 18 to move synchronously to the left. The first connecting block 18 drives the locator 23 to rotate along the Figure 5 direction shown by the lower arrow as shown, and the three locking pieces 24 move towards the right end of the arc-shaped chute 27 and disperse towards the center of the locator 23, thereby realizing the loosening of the product, and then the product 100 can be taken out.

[0050] In summary, a pneumatic clamping fixture for accessories provided by the present utility model uses a pneumatic method to control the movement of the locking pieces to control the loosening and clamping of the product. The clamping force for each operation is the same, and the clamping groove on the positioning table is completely adapted to the structure of the product. The product can be accurately positioned, effectively solving the problems of product deformation and unstable dimensions caused by different manual locking forces, ensuring that the processing of each product meets strict standards and reducing human errors. The number of sets of the clamping structure can be expanded, and multiple products can be clamped at the same time, improving the production efficiency and consistency, improving the product quality and saving operation time at the same time.

[0051] The above division of functional modules is only for illustration. In actual applications, the above functions can be allocated to different functional modules according to needs, that is, divided into different functional modules to complete all or part of the functions described above.

[0052] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution and the inventive concept of the present utility model, and all such changes or substitutions should fall within the protection scope of the appended claims of the present utility model.

Claims

1. A pneumatic clamping fixture for accessories, used for clamping optical communication module accessories, characterized in that: It comprises a base, on which a pneumatic assembly, an actuator assembly, a connecting assembly and a clamping assembly are arranged; the pneumatic assembly is fixed to one side of the base and is pneumatically connected to the actuator assembly, and the actuator assembly is arranged on the base and is transmission-connected to the clamping assembly through the connecting assembly; The optical communication module accessories are placed on the clamping assembly, and when the pneumatic assembly is turned on, the actuator assembly is driven to move in one direction, the actuator assembly drives the connecting assembly to move synchronously, and the connecting assembly pushes the clamping assembly to clamp the optical communication module accessories; The pneumatic component drives the actuator component to move in the opposite direction when exchanging air, and the actuator component drives the connecting component to move back synchronously, and the connecting component pushes back the clamping component to release the optical communication module accessories.

2. The pneumatic fixture for accessories according to claim 1 is characterized in that: The pneumatic assembly includes an external air pipe, a pneumatic valve, a first adapter, a second adapter, a third adapter, a first air pipe and a second air pipe; The pneumatic valve is fixed on one side of the base, and the external air pipe is installed in the air inlet at the top of the pneumatic valve through a first adapter, one end of the first air pipe is installed in the first air outlet at the top of the pneumatic valve through a third adapter, and one end of the second air pipe is installed in the second air outlet at the top of the pneumatic valve through a second adapter, and the other ends of the first air pipe and the second air pipe are connected to the actuator.

3. The pneumatic fixture for accessories according to claim 2 is characterized in that: The pneumatic assembly also includes two silencers. An exhaust hole is respectively arranged on both sides of the air inlet at the top of the pneumatic valve, and the two silencers are respectively installed in an exhaust hole.

4. The pneumatic fixture for accessories according to claim 3 is characterized in that: The actuator assembly includes a first connecting member, a cylinder, a cylinder support seat, a first flow regulating valve and a second flow regulating valve; The cylinder support seat is installed on a concave platform at a corner of the base, the cylinder is placed on the concave platform and fixed to the side of the cylinder support seat, the piston rod of the cylinder is connected to one end of the first connecting piece, the vertical end of the first connecting piece is connected to the connecting assembly, the air outlets of the first flow regulating valve and the second flow regulating valve are installed in the two air holes on the top of the cylinder, the air inlet of the first flow regulating valve is connected to the other end of the first air pipe, and the air inlet of the second flow regulating valve is connected to the other end of the second air pipe.

5. The pneumatic clamping fixture for accessories according to claim 4 is characterized in that: The connecting assembly includes a first vertical shaft, a second vertical shaft, a first connecting rod and a first connecting block; One end of the first connecting rod with a first through hole is placed in the side groove of the vertical end of the first connecting piece; the first vertical axis is inserted into the vertical end of the first connecting piece, the first through hole of the first connecting rod, and extends from the bottom surface of the vertical end of the first connecting piece; the two ends of the first vertical axis are respectively fixed to the first connecting piece by a retaining spring; the other end of the first connecting rod with a second through hole is placed in the mounting groove at one end of the first connecting block, the second vertical axis is inserted into the first connecting block, the second through hole of the first connecting rod, and extends from the bottom surface of the first connecting block; the two ends of the second vertical axis are respectively fixed to the first connecting block by a retaining spring, and the other end of the first connecting block is connected to the clamping assembly.

6. The pneumatic fixture for accessories according to claim 5, characterized in that: The first vertical shaft is fixed in the upper and lower through holes of the vertical end of the first connecting member and the first through hole of the first connecting rod, and the second vertical shaft is fixed in the upper and lower through holes of the first connecting block and the second through hole of the first connecting rod.

7. The pneumatic fixture for accessories according to claim 5, characterized in that: The clamping assembly includes a first cushion block, a second cushion block, a positioning platform, a positioner, three locking plates and a centering shaft; The first pad and the second pad are respectively fixed at two ends of the base, and the two ends of the positioning platform are correspondingly fixed on the first pad and the second pad. The positioning platform is provided with a clamping groove for accommodating optical communication module accessories. The upper end of the centering shaft passes through the through hole in the middle of the positioner and is inserted and fixed on the clamping groove. The positioner is located below the clamping groove, and the side of the positioner is connected to the first connecting block. The top surface of the positioner is provided with arc-shaped grooves with the same number as the locking plates, and the bottom of the clamping groove is provided with arc-shaped through grooves with the same number and relative positions as the arc-shaped grooves. The bottoms of several locking plates are inserted into the arc-shaped grooves corresponding to the top surface of the positioner, and the tops of several locking plates extend from the arc-shaped through grooves at the bottom of the clamping grooves.

8. The pneumatic fixture for accessories according to claim 7, characterized in that: The inner side surface of the first connecting block is a curved surface, and the curvature of the curved surface is adapted to the side surface of the positioner.

9. The pneumatic fixture for accessories according to claim 7, characterized in that: The clamping assembly also includes an anti-stuck gasket, which is arranged at the bottom of the centering shaft. A screw passes through the through hole in the center of the anti-stuck gasket and is inserted into the mounting hole at the bottom of the centering shaft.

10. The pneumatic fixture for accessories according to claim 7, characterized in that: A pin is arranged at the bottom of the platform part of the locking piece, and the pin is inserted into the arc-shaped sliding groove; the upper surface of the platform part of the locking piece abuts against the bottom surface of the positioning platform.

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