Pneumatic clamping mechanism

Abstract

The utility model relates to a pneumatic clamping mechanism. The pneumatic clamping mechanism comprises a base, a middle clamp, an edge clamp, a telescopic assembly, a pressing assembly and a control device. The control device is connected to the telescopic assembly and the pressing assembly. The control device controls the middle clamp to fix the middle workpiece, the edge clamp preliminarily fixes the edge workpiece, the control device controls the telescopic assembly to push the edge workpiece so as to finally fix the edge workpiece, and the control device controls the pressing assembly to press the middle workpiece and the edge workpiece. An operator operates the control device to fix and press the middle workpiece and the edge workpiece, so that the production efficiency can be improved, the production cost can be reduced, the operation difficulty can be reduced, the one-time qualification rate of workpiece fixing can be improved, and the automation rate of workpiece fixing can be improved.

Description

Technical Field

[0001] This application relates to the field of clamping tooling technology, and in particular to a pneumatic clamping mechanism. Background Technology

[0002] Currently, workpieces to be welded need to be fixed in position first before welding. Currently, workpieces are typically fixed manually, which suffers from problems such as low precision, unstable fixing, low efficiency, high production costs, difficulty in manual operation, and overly complex processes that are not easy to learn quickly. Furthermore, traditional manual clamping requires operators with considerable arm strength and endurance, which is difficult for most male employees to sustain for extended periods. Utility Model Content

[0003] This application provides a pneumatic clamping mechanism that solves the problems of low efficiency, high production cost, high physical requirements for employees, difficulty in long-term operation, and difficulty in quickly mastering the operation due to strict restrictions on the operation sequence when using manual clamping and opening clamps to fix workpieces.

[0004] To achieve the above objectives, the pneumatic clamping mechanism provided in this application includes a first direction. The pneumatic clamping mechanism includes: a base; a central clamp disposed in the center of the base and used to fix a central workpiece; an edge clamp disposed at the edge of the base and used to fix an edge workpiece; a telescopic assembly disposed at the edge of the base and used to push the edge workpiece; a pressing assembly disposed on the base and used to press down the central workpiece and the edge workpiece along the first direction; and a control device disposed on the base, the control device being connected to the telescopic assembly and the pressing assembly.

[0005] In some embodiments, the control device includes a first pneumatic switch manual valve connected to the pressure-down assembly.

[0006] In some embodiments, the pneumatic clamping mechanism further includes a second direction and a third direction, wherein the first direction, the second direction and the third direction intersect each other; the edge workpiece includes a first edge workpiece, the edge clamp includes a first edge clamp, and the telescopic assembly includes a first telescopic assembly. The first edge workpiece, the first edge clamp and the first telescopic assembly are all disposed at at least one end of the base in the second direction. The first edge workpiece extends along the third direction. The first edge clamp is used to fix the first edge workpiece, and the first telescopic assembly is used to push the first edge workpiece along the second direction.

[0007] In some embodiments, the first edge clamp includes a first limiting block, and the first limiting block and a first telescopic assembly are respectively disposed on both sides of the first edge workpiece in a second direction.

[0008] In some embodiments, the edge workpiece further includes a second edge workpiece, the edge clamp further includes a second edge clamp, and the telescopic assembly further includes a second telescopic assembly. The second edge workpiece, the second edge clamp, and the second telescopic assembly are all disposed at at least one end of the base in a third direction. The second edge workpiece extends along a second direction, the second edge clamp is used to fix the second edge workpiece, and the second telescopic assembly is used to push the second edge workpiece along a third direction.

[0009] In some embodiments, the second edge clamp includes a second limiting block and a third telescopic assembly, the second limiting block and the third telescopic assembly being respectively disposed on both sides of the second edge workpiece in a second direction.

[0010] In some embodiments, the control device includes: a second pneumatic switch manual valve connected to the first telescopic assembly; and a third pneumatic switch manual valve connected to the second telescopic assembly.

[0011] In some embodiments, the second pneumatic switch manual valve is also connected to the third telescopic assembly.

[0012] In some embodiments, the central clamp includes a positioning post and a fourth telescopic assembly, the positioning post extending along a first direction and connected to the fourth telescopic assembly, the central workpiece and the fourth telescopic assembly being respectively disposed on both sides of the base in the first direction.

[0013] In some embodiments, the control device includes a fourth pneumatic switch manual valve connected to a fourth telescopic assembly.

[0014] This application provides a pneumatic clamping mechanism. A control device controls a central clamp to fix a central workpiece, an edge clamp to initially fix an edge workpiece, a control device controls a telescopic component to push the edge workpiece for final fixation, and a control device controls a pressing component to press the central and edge workpieces together. The operator can fix and press the central and edge workpieces by operating the control device. This can improve production efficiency, reduce production costs, reduce operational difficulty, increase the first-pass yield of workpiece fixation, and improve the automation rate of workpiece fixation. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0017] Figure 1 This is a schematic diagram of the pneumatic clamping mechanism in the embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the planar structure of the pneumatic clamping mechanism in the embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the battery box body clamped and welded by the pneumatic clamping mechanism in the embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the structure for fixing the battery box in the pneumatic clamping mechanism in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the arrangement of the central clamp and the fourth pneumatic switch manual valve on the base in the embodiments of this application;

[0022] Figure 6 This is a schematic diagram of the arrangement of the edge clamp, the first telescopic component, and the second pneumatic switch manual valve on the base in the embodiments of this application;

[0023] Figure 7 This is a schematic diagram of the arrangement of the second telescopic component and the third pneumatic switch manual valve on the base in the embodiments of this application;

[0024] Figure 8 This is a schematic diagram of the arrangement of the pressing component and the first pneumatic switch manual valve on the base in the embodiments of this application;

[0025] Figure 9 This is a schematic diagram of the structure of the pressing component in the embodiments of this application;

[0026] Figure 10 This is a cross-sectional view of the pressing component in the embodiments of this application;

[0027] Figure 11 This is a schematic diagram of the structure of the first telescopic component, the second telescopic component, and the third telescopic component in the embodiments of this application;

[0028] Figure 12 This is a cross-sectional view of the first telescopic component, the second telescopic component, and the third telescopic component in the embodiments of this application;

[0029] Figure 13 This is a schematic diagram of the structure of the middle clamp in the embodiments of this application;

[0030] Figure 14 This is a schematic diagram of the control device in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 10. Pneumatic clamping mechanism; 20. Battery box; 201. Middle workpiece; 202. Edge workpiece; 2021. First edge workpiece; 2022. Second edge workpiece; 203. Bottom guard plate; 1. Base; 2. Middle clamp; 3. Edge clamp; 4. Telescopic assembly; 5. Pressing assembly; 6. Control device; 11. Support bar; 12. Support plate; 21. Positioning post; 22. Fourth telescopic assembly; 221. Third cylinder body; 222. Third air inlet; 223. Third air outlet; 224. Third piston rod; 31. First edge clamp; 32. Second edge clamp; 311. First limiting block; 321. Second limiting block; 322. Third telescopic assembly; 41. First telescopic assembly; 42. Second telescopic assembly; 421. Second cylinder body 422. First piston rod; 423. First guide shaft; 424. Second guide shaft; 425. Pressure plate; 426. Sealing rear cover; 427. Anti-collision pad; 428. Mounting hole; 429. Fastener; 430. Second air inlet; 431. Second air outlet; 51. First cylinder body; 52. First piston rod; 53. Pressure arm; 511. Piston bushing; 512. First air inlet; 513. Rear cover; 514. Plug; 515. First air outlet; 61. First pneumatic switch manual valve; 62. Second pneumatic switch manual valve; 63. Third pneumatic switch manual valve; 64. Fourth pneumatic switch manual valve; 71. Handle mounting seat; 72. Rubber handle; 73. Alloy valve body; 74. Front cover; 75. Switch air inlet; 76. Switch air outlet. Detailed Implementation

[0033] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0034] Please see Figure 1 This application provides a pneumatic clamping mechanism 10. The pneumatic clamping mechanism 10 has a first direction M, a second direction N, and a third direction P that intersect each other. In this embodiment, the first direction M, the second direction N, and the third direction P are perpendicular to each other. The perpendicularity of the first direction M, the second direction N, and the third direction P can be understood as the included angle between each pair of the first direction M, the second direction N, and the third direction P being 80° to 90°, and is not limited thereto.

[0035] Please see Figure 1The pneumatic clamping mechanism 10 includes: a base 1, a central clamp 2, an edge clamp 3, a telescopic assembly 4, a pressing assembly 5, and a control device 6. The pneumatic clamping mechanism 10 is suitable for welding the battery box 20, and the telescopic assembly 4 and the pressing assembly 5 are preferably pneumatically controlled structures.

[0036] Please see Figure 1 and Figure 2 The base 1 includes a support bar 11 and a support plate 12. The support plate 12 is positioned above the support bar 11 in a first direction. In this embodiment, the support bar 11 is a 50*50 carbon steel square tube, and the support plate 12 is a 45# steel plate. First, the overall frame of the base 1 is assembled using carbon steel square tubes to ensure the approximate position and accuracy of the base 1; then, 45# steel plates are welded onto the carbon steel square tubes for precision machining, thereby ensuring the position and accuracy of the base 1 and achieving the desired effect. In this embodiment, the pneumatic clamping mechanism 10 is used to clamp and weld the battery box frame. Since the battery box frame is relatively large and has many welding points, high-hardness, high-wear-resistant carbon steel and high-strength, corrosion-resistant 45# steel plates are selected to form the base 1.

[0037] Please refer to the following: Figure 3 The battery housing 20 includes a central part 201, edge parts 202, and a bottom protective plate 203. The edge parts 202 have a rectangular or parallelogram structure and can serve as lifting lug mounting plates. The central part 201 is a supporting structure within the edge parts 202. A pneumatic clamping mechanism 10 is used to fix the battery housing 20 for welding.

[0038] Please see Figure 3 The edge workpiece 202 includes a first edge workpiece 2021 and a second edge workpiece 2022. The first edge workpiece 2021 extends along a third direction and is disposed at at least one end of the base 1 in a second direction, and the second edge workpiece 2022 extends along the second direction and is disposed at at least one end of the base 1 in a third direction. In this embodiment, the first edge workpiece 2021 is disposed at both ends of the base 1 in the second direction, and the second edge workpiece 2022 is disposed at both ends of the base 1 in a third direction.

[0039] Please refer to the following: Figures 2 to 5 The central clamp 2 is located in the middle of the base 1 and is used to fix the central workpiece 201.

[0040] Please refer to the following: Figure 6An edge clamp 3 is disposed on the edge of the base 1 and is used to fix the edge workpiece 202. The edge clamp 3 includes a first edge clamp 31 and a second edge clamp 32. The first edge workpiece 2021 is disposed at at least one end of the base 1 in a second direction, and the second edge clamp 32 is disposed at at least one end of the base 1 in a third direction. The first edge clamp 31 is used to fix the first edge workpiece 2021, and the second edge clamp 32 is used to fix the second edge workpiece 2022. In this embodiment, the first edge workpiece 2021 is disposed at both ends of the base 1 in the second direction, and the second edge clamp 32 is disposed at both ends of the base 1 in a third direction.

[0041] Please refer to the following: Figure 6 and Figure 7 The telescopic component 4 is disposed at the edge of the base 1 and is used to push the edge workpiece 202. The telescopic component 4 includes a first telescopic component 41 and a second telescopic component 42. The first telescopic component 41 is disposed at least at one end of the base 1 in a second direction, and the second telescopic component 42 is disposed at at least one end of the base 1 in a third direction. The first telescopic component 41 is used to push the first edge workpiece 2021 along the second direction, and the second telescopic component 42 is used to push the second edge workpiece 2022 along the third direction. In this embodiment, the first telescopic component 41 is disposed at both ends of the base 1 in the second direction, and the second telescopic component 42 is disposed at both ends of the base 1 in the third direction.

[0042] Please refer to the following: Figure 1 , Figure 2 and Figure 7 The pressing component 5 is disposed on the base 1 and is used to press down the middle workpiece 201 and the edge workpiece 202 along the first direction.

[0043] Please refer to the following: Figure 1 , Figure 2 and Figure 6 The first edge clamp 31 includes a first limiting block 311, and the first limiting block 311 and the first telescopic component 41 are respectively disposed on both sides of the first edge workpiece 2021 in the second direction. The first limiting block 311 and the first telescopic component 41 cooperate with each other to initially limit the first edge workpiece 2021 in the second direction.

[0044] Please refer to the following: Figure 1 , Figure 2 and Figure 6 The second edge clamp 32 includes a second limiting block 321 and a third telescopic component 322, which are respectively disposed on both sides of the second edge workpiece 2022 in the second direction. The second limiting block 321 and the third telescopic component 322 cooperate with each other to initially limit the second edge workpiece 2022 in the second direction.

[0045] Please refer to the following: Figure 2 , Figures 5-8 The control device 6 is mounted on the base 1 and is connected to the telescopic assembly 4 and the pressing assembly 5. Specifically, the control device 6 includes: a first pneumatic switch manual valve 61, a second pneumatic switch manual valve 62, and a third pneumatic switch manual valve 63.

[0046] Please see Figure 6 The second pneumatic manual valve 62 is connected to the first telescopic assembly 41. In this embodiment, the second pneumatic manual valve 62 is also connected to the third telescopic assembly 322. That is, the second pneumatic manual valve 62 controls both the first telescopic assembly 41 and the third telescopic assembly 322. In other embodiments, an additional pneumatic manual valve can be provided to control the third telescopic assembly 322. By driving the first telescopic assembly 41 with the second pneumatic manual valve 62 to push the first edge workpiece 2021 to cooperate with the first limiting block 311 to finally limit the first edge workpiece 2021 in the second direction, the second pneumatic manual valve 62 can drive the third telescopic assembly 322 to push the second edge workpiece 2022 to cooperate with the second limiting block 321 to finally limit the second edge workpiece 2022 in the second direction. This can improve production efficiency, reduce production costs, reduce operational difficulty, increase the first-pass yield of workpiece fixing, and improve the automation rate of workpiece fixing.

[0047] Please see Figure 7 The third pneumatic switch manual valve 63 is connected to the second telescopic assembly 42. The third pneumatic switch manual valve 63 drives the second telescopic assembly 42 to push the second edge workpiece 2022 to cooperate with the middle workpiece 201 to finally limit the second edge workpiece 2022 in a third direction. This can improve production efficiency, reduce production costs, reduce operation difficulty, increase the first-pass yield of workpiece fixing, and improve the automation rate of workpiece fixing.

[0048] Please see Figure 8 The first pneumatic manual valve 61 is connected to the pressing assembly 5. The first pneumatic manual valve 61 controls the pressing assembly 5 to press down the middle workpiece 201 and the edge workpiece 202, thereby clamping and fixing the middle workpiece 201 and the edge workpiece 202. Controlling the pressing assembly 5 to press down the middle workpiece 201 and the edge workpiece 202 via the first pneumatic manual valve 61 can improve production efficiency, reduce production costs, reduce operational difficulty, increase the first-pass yield of workpiece fixing, and enhance the automation rate of workpiece fixing.

[0049] Please see Figure 2 and Figure 5 The control device 6 also includes a fourth pneumatic switch manual valve 64, which is connected to the fourth telescopic assembly 22.

[0050] Please see Figure 9 and Figure 10 The pressing assembly 5 includes: a first cylinder body 51, a first piston rod 52, and a pressing arm 53. The first piston rod 52 is slidably disposed within the first cylinder body 51; the pressing arm 53 is connected to the top of the first piston rod 52. The first cylinder body 51 includes: a piston sleeve 511, a first air inlet 512, a rear cover 513, a plug 514, and a first air outlet 515. The first air inlet 512 is located at the top of the piston sleeve 511, and the air outlet is located at the bottom of the piston sleeve 511. The rear cover 513 is located at the bottom of the piston sleeve 511. The plug 514 is located at the bottom of the piston sleeve 511 and surrounds the rear cover 513.

[0051] Please see Figure 11 and Figure 12 The first telescopic assembly 41, the second telescopic assembly 42, and the third telescopic assembly 322 each include: a second cylinder body 421, a second piston rod 422, a first guide shaft 423, a second guide shaft 424, a pressure plate 425, a sealing rear cover 426, and an anti-collision pad 427. The second cylinder body 421 has a piston chamber, a first guide chamber, and a second guide chamber, located on opposite sides of the piston chamber; the second piston rod 422 is slidably disposed within the piston chamber; the first guide shaft 423 is slidably disposed within the first guide chamber; and the second guide shaft 424 is slidably disposed within the second guide chamber. The pressure plate 425 is disposed on one side of the second cylinder body 421, with its middle portion connected to the second piston rod 422, and its two sides connected to the first guide shaft 423 and the second guide shaft 424, respectively; the sealing rear cover 426 is disposed at the bottom of the second cylinder body 421; and the anti-collision pad 427 is disposed on the side of the second cylinder body 421 facing the pressure plate 425. The side of the second cylinder body 421 is provided with multiple mounting holes 428. The pressure plate 425 is detachably connected to the second piston rod 422, the first guide shaft 423, and the second guide shaft 424 by fasteners 429. The second cylinder body 421 is provided with a second air inlet 430 and a second air outlet 431.

[0052] Please see Figure 13 The central clamp 2 includes a positioning post 21 and a fourth telescopic assembly 22. The fourth telescopic assembly 22 includes a third cylinder body 221, a third air inlet 222, a third air outlet 223, and a third piston rod 224. The positioning post 21 extends along a first direction and connects to the third piston rod 224 of the fourth telescopic assembly 22. The central workpiece 201 and the fourth telescopic assembly 22 are respectively disposed on both sides of the base 1 in the first direction. The fourth telescopic assembly 22 drives the positioning post 21 to extend and retract along the first direction.

[0053] Please see Figure 14The first pneumatic switch manual valve 61, the second pneumatic switch manual valve 62, the third pneumatic switch manual valve 63, and the fourth pneumatic switch manual valve 64 each include: a handle mounting base 71, a rubber handle 72, an alloy valve body 73, a front cover 74, a switch air inlet 75, a switch air outlet 76, and a silencer valve. The rubber handle 72 is mounted on the handle mounting base 71; the alloy valve body 73 is connected to the handle mounting base 71, with an exhaust port and a manual valve air inlet on one side and an air outlet on the other side; the front cover 74 is connected to the side of the alloy valve body 73 opposite to the handle mounting base 71.

[0054] The first air inlet 512 of the pressing component 5 is connected to the switch air outlet 76 of the first pneumatic switch manual valve 61, and the switch air inlet 75 of the first pneumatic switch manual valve 61 is connected to the first air outlet 515 of the pressing component 5.

[0055] Specifically, the second air inlet 430 of the first telescopic component 41 is connected to the switch air outlet 76 of the second pneumatic switch manual valve 62, and the switch air inlet 75 of the second pneumatic switch manual valve 62 is connected to the second air outlet 431 of the first telescopic component 41. The second air inlet 430 of the third telescopic component 4 is connected to the switch air outlet 76 of the second pneumatic switch manual valve 62, and the switch air inlet 75 of the second pneumatic switch manual valve 62 is connected to the second air outlet 431 of the third telescopic component 322.

[0056] The second air inlet 430 of the second telescopic component 42 is connected to the switch air outlet 76 of the third pneumatic switch manual valve 63, and the switch air inlet 75 of the third pneumatic switch manual valve 63 is connected to the second air outlet 431 of the second telescopic component 42.

[0057] The third air inlet 222 of the fourth telescopic component 22 is connected to the switch air outlet 76 of the fourth pneumatic switch manual valve 64, and the switch air inlet 75 of the fourth pneumatic switch manual valve 64 is connected to the third air outlet 223 of the fourth telescopic component 22.

[0058] When the pneumatic clamping mechanism 10 of this application is in use, all the pressing components 5 are first opened by the first pneumatic manual valve 61, all the first telescopic components 41 and the third telescopic components 322 are opened by the second pneumatic manual valve 62, all the second telescopic components 42 are opened by the third pneumatic manual valve 63, and the positioning column 21 is controlled to protrude from the base 1 by the fourth pneumatic manual valve 64.

[0059] The central workpiece 201 is fixed by the positioning pins 21 on the central clamp 2. The first edge workpiece 2021 is initially limited at both ends in the second direction by the first limiting block 311 and the first telescopic component 41. The second edge workpiece 2022 is initially limited at both ends in the second direction by the second limiting block 321 and the third telescopic component 322. The second edge workpiece 2022 is initially limited at both ends in the third direction by the second telescopic component 42 and the central workpiece 201. It is worth noting that, in order to prevent the central workpiece 201 from being unable to be installed after the edge workpiece 202 is installed due to dimensional errors, the central workpiece 201 should be installed first, and then the edge workpiece 202 should be installed.

[0060] The first edge workpiece 2021 is finally limited in the second direction by the second pneumatic switch manual valve 62, and the second edge workpiece 2022 is finally limited in the second direction by the second pneumatic switch manual valve 62. The second edge workpiece 2022 is finally limited in the third direction by the third pneumatic switch manual valve 63.

[0061] Then, the pressing assembly 5 is controlled by the first pneumatic switch manual valve 61 to press the middle workpiece 201 and the edge workpiece 202.

[0062] In summary, the pneumatic clamping mechanism 10 provided in this application controls the pressing component 5, the telescopic component 4, the edge clamp 3, and the middle clamp 2 through the control device 6. The operator can fix and clamp the middle workpiece 201 and the edge workpiece 202 by operating the control device 6, which can improve production efficiency, reduce production costs, reduce operation difficulty, improve the first-pass yield of workpiece fixing, and improve the automation rate of workpiece fixing.

[0063] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0064] In the above embodiments, the descriptions of each embodiment have their own emphasis. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0065] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A pneumatic clamping mechanism (10), characterized in that, Including the first direction, the pneumatic clamping mechanism (10) includes: Base (1); A central clamp (2) is disposed in the middle of the base (1) and is used to fix the central workpiece (201); An edge clamp (3) is disposed on the edge of the base (1) and is used to fix the edge workpiece (202); A telescopic component (4) is disposed at the edge of the base (1) and is used to push the edge workpiece (202); A pressing assembly (5), disposed on the base (1), is used to press down the central workpiece (201) and the edge workpiece (202) along the first direction; and A control device (6) is disposed on the base (1) and is connected to the telescopic assembly (4) and the pressing assembly (5).

2. The pneumatic clamping mechanism (10) as described in claim 1, characterized in that, The control device (6) includes a first pneumatic switch manual valve (61) connected to the pressure assembly (5).

3. The pneumatic clamping mechanism (10) as described in claim 1, characterized in that, It also includes a second direction and a third direction, wherein the first direction, the second direction, and the third direction intersect each other; The edge workpiece (202) includes a first edge workpiece (2021), the edge clamp (3) includes a first edge clamp (31), and the telescopic assembly (4) includes a first telescopic assembly (41). The first edge workpiece (2021), the first edge clamp (31), and the first telescopic assembly (41) are all disposed at at least one end of the base (1) in the second direction. The first edge workpiece (2021) extends along the third direction. The first edge clamp (31) is used to fix the first edge workpiece (2021), and the first telescopic assembly (41) is used to push the first edge workpiece (2021) along the second direction.

4. The pneumatic clamping mechanism (10) as described in claim 3, characterized in that, The first edge clamp (31) includes a first limiting block (311), and the first limiting block (311) and the first telescopic component (41) are respectively disposed on both sides of the first edge workpiece (2021) in the second direction.

5. The pneumatic clamping mechanism (10) as described in claim 3, characterized in that, The edge workpiece (202) further includes a second edge workpiece (2022), the edge clamp (3) further includes a second edge clamp (32), and the telescopic assembly (4) further includes a second telescopic assembly (42). The second edge workpiece (2022), the second edge clamp (32), and the second telescopic assembly (42) are all disposed at at least one end of the base (1) in the third direction. The second edge workpiece (2022) extends along the second direction. The second edge clamp (32) is used to fix the second edge workpiece (2022), and the second telescopic assembly (42) is used to push the second edge workpiece (2022) along the third direction.

6. The pneumatic clamping mechanism (10) as described in claim 5, characterized in that, The second edge clamp (32) includes a second limiting block (321) and a third telescopic component (322), wherein the second limiting block (321) and the third telescopic component (322) are respectively disposed on both sides of the second edge workpiece (2022) in the second direction.

7. The pneumatic clamping mechanism (10) as described in claim 6, characterized in that, The control device (6) includes: A second pneumatic switch manual valve (62) is connected to the first telescopic assembly (41); and The third pneumatic switch manual valve (63) is connected to the second telescopic assembly (42).

8. The pneumatic clamping mechanism (10) as described in claim 7, characterized in that, The second pneumatic switch manual valve (62) is also connected to the third telescopic assembly (322).

9. The pneumatic clamping mechanism (10) as described in claim 1, characterized in that, The central clamp (2) includes a positioning post (21) and a fourth telescopic assembly (22). The positioning post (21) extends along the first direction and is connected to the fourth telescopic assembly (22). The central workpiece (201) and the fourth telescopic assembly (22) are respectively disposed on both sides of the base (1) in the first direction.

10. The pneumatic clamping mechanism (10) as described in claim 9, characterized in that, The control device (6) includes: The fourth pneumatic switch manual valve (64) is connected to the fourth telescopic assembly (22).

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