Laser seal welding equipment for bipolar plate of vanadium battery

Abstract

The invention discloses vanadium battery bipolar plate laser seal welding equipment, and belongs to the technical field of welding equipment, and the vanadium battery bipolar plate laser seal welding equipment is characterized in that the vanadium battery bipolar plate laser seal welding equipment comprises a fixed bottom plate and further comprises movable guide mechanisms, the movable guide mechanisms are symmetrically arranged relative to the fixed bottom plate, and the movable guide mechanisms are movably connected with a bipolar plate clamping mechanism; one end of the rotating mechanism is fixedly connected with the moving guide mechanism, the rotating mechanism comprises a third mounting seat, a first rotating assembly and a second rotating assembly, one end of the third mounting seat is fixedly connected with the moving guide assembly, the third mounting seat is connected with the first rotating assembly, and the second mounting seat is connected with the second rotating assembly. The first rotating assembly is movably connected with the second rotating assembly, a welding head clamping mechanism is arranged on the second rotating assembly, and the bipolar plate welding device has the advantage of being capable of conducting multi-angle welding on a bipolar plate.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a laser sealing welding equipment for a bipolar plate of a vanadium battery. Background Art

[0002] Fuel cells are an emerging power generation technology following the original power generation technology. The working principle of fuel cells is to convert chemical energy into electrical energy, and its final product is water. Therefore, fuel cells are also a pollution-free, high-efficiency, noise-free, and continuously working power device, known as the ultimate clean fuel. Vanadium batteries are considered to be a very promising technology in energy storage systems, especially in the field of energy storage for fluctuating new energy power generation such as wind power and solar power.

[0003] However, for the metal bipolar plates used in existing vanadium batteries, the anode and cathode are generally made of metal thin plates first, and then the anode and cathode are connected based on segmented welding to form a flow channel between the two.

[0004] Although the laser sealing welding equipment for vanadium battery bipolar plates has advantages in high precision and high efficiency, it still has some shortcomings, including unstable welding quality, limited material adaptability, and insufficient welding efficiency and automation level. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the embodiments of the present invention is to provide a vanadium battery bipolar plate laser sealing welding device to solve the problems in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A vanadium battery bipolar plate laser sealing welding device, comprising a fixed bottom plate, and also comprising:

[0008] A movable guide mechanism, the movable guide mechanism is symmetrically arranged with respect to the fixed bottom plate, and the movable guide mechanism is movably connected to the bipolar plate clamping mechanism;

[0009] A rotating mechanism, one end of which is fixedly connected to the movable guide mechanism, the rotating mechanism comprising a third mounting seat, a first rotating assembly and a second rotating assembly, one end of the third mounting seat being fixedly connected to the movable guide assembly, the third mounting seat being connected to the first rotating assembly, the first rotating assembly being movably connected to the second rotating assembly, and a welding head clamping mechanism being arranged on the second rotating assembly;

[0010] The first rotating assembly comprises a connecting member, a first electric rotating shaft and a connecting rod, the connecting member is fixedly connected to the third mounting seat, a first electric rotating shaft is arranged inside the connecting member, the first electric rotating shaft is movably connected to the connecting member, an output end of the first electric rotating shaft is connected to the connecting rod, and the connecting rod is movably connected to the second rotating assembly;

[0011] The second rotating assembly includes a second electric rotating shaft and a fourth mounting seat, the connecting rod is movably connected to the fourth mounting seat, a welding head clamping mechanism is provided on the fourth mounting seat, the second electric rotating shaft passes through the connecting rod and the fourth mounting seat, and the second electric rotating shaft is movably connected to the fourth mounting seat;

[0012] The mobile guide mechanism drives the third mounting seat to move, the third mounting seat drives the connecting piece to move, the first electric shaft in the connecting piece rotates, the first electric shaft drives the connecting rod to rotate, the connecting rod adopts an L-shaped structure, the connecting rod drives the fourth mounting seat to move through the second electric shaft, the direction of the fourth mounting seat is adjusted through the connecting rod, and the squareness of the welding head clamping mechanism is adjusted through the fourth mounting seat;

[0013] The second electric rotating shaft is started, the second electric rotating shaft drives the fourth mounting seat to rotate, the fourth mounting seat drives the welding head clamping mechanism to rotate, and the angle of the welding head clamping mechanism is adjusted by the fourth mounting seat.

[0014] As a further solution of the present invention, the mobile guiding mechanism includes:

[0015] A movable guide assembly, one end of which is fixedly connected to the fixed base plate, the movable guide assembly is movably connected to a first movable assembly, and the first movable assembly is fixedly connected to the third mounting seat;

[0016] A second square mounting block, wherein the second square mounting block is fixedly connected to the movable guide assembly, and a bipolar plate clamping mechanism is disposed on one side of the second square mounting block.

[0017] As a further solution of the present invention, the mobile guide assembly includes:

[0018] a first mounting seat, one end of which is fixedly connected to the fixed bottom plate, and the first mounting seat is fixedly connected to the second square mounting block;

[0019] A first guide groove is provided in the first mounting seat, and the first guide groove is movably connected to the first moving component.

[0020] As a further solution of the present invention, the first moving component includes:

[0021] a first moving block, the first moving block being movably connected to the first guide groove;

[0022] A first square mounting block, the first moving block is fixedly connected to the first square mounting block, and the first square mounting block is fixedly connected to the third mounting seat.

[0023] As a further solution of the present invention, the welding head clamping mechanism includes:

[0024] A welding head clamping assembly, wherein the welding head clamping assembly is fixedly connected to the fourth mounting seat and is movably connected to the connecting assembly;

[0025] A clamping anti-skid groove, wherein the clamping anti-skid groove is arranged on the inner wall of the welding head clamping assembly;

[0026] A through hole is provided in the fourth mounting seat, and the welding head clamping assembly is movably connected to the fourth mounting seat.

[0027] As a further solution of the present invention, the welding head clamping assembly comprises:

[0028] A first clamping seat, one end of which is fixedly connected to the fourth mounting seat, and a clamping anti-slip groove is provided on one side of the first clamping seat;

[0029] A second clamping seat, one end of which is movably connected to the fourth mounting seat, and a clamping anti-slip groove is provided on one side of the second clamping seat;

[0030] A movable seat, the movable seat passes through the through hole, and the movable seat is movably connected to the connecting component;

[0031] An adjusting rod is movably connected to the moving seat.

[0032] As a further solution of the present invention, the connection assembly includes:

[0033] A first connecting rod, the first connecting rod is movably connected to the first clamping seat, the first connecting rod is movably connected to the second clamping seat, and the first connecting rod is movably connected to the moving seat;

[0034] A second connecting rod, one end of which is movably connected to the first clamping seat, and the other end of which is movably connected to the moving seat.

[0035] In summary, compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0036] When the second electric shaft is not started, it plays the role of connecting the fourth mounting seat and the connecting rod. The output end of the second electric shaft is connected to the fourth mounting seat. When the second electric shaft is started, the second electric shaft drives the fourth mounting seat to rotate. The direction of the fourth mounting seat is adjusted by the connecting rod, and the squareness of the welding head clamping mechanism is adjusted by the fourth mounting seat.

[0037] Start the second electric shaft, the second electric shaft drives the fourth mounting seat to rotate, the fourth mounting seat drives the welding head clamping mechanism to rotate, and the angle of the welding head clamping mechanism is adjusted by the fourth mounting seat, thereby realizing multi-angle change of the welding head clamping mechanism, so as to better perform laser welding on the bipolar plate.

[0038] In order to more clearly illustrate the structural features and effects of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of an embodiment of the invention.

[0040] Figure 2 In the embodiment of the invention Figure 1 Side view of.

[0041] Figure 3 In the embodiment of the invention Figure 1 Left view of .

[0042] Figure 4 In the embodiment of the invention Figure 2 Partial cross-sectional view of the mobile guide mechanism in FIG.

[0043] Figure 5 In the embodiment of the invention Figure 2 Schematic diagram of the local enlarged structure in.

[0044] Figure 6 In the embodiment of the invention Figure 3 Schematic diagram of the rotating mechanism structure.

[0045] Figure 7 In the embodiment of the invention Figure 1 Schematic diagram of the welding head clamping mechanism structure.

[0046] Figure 8 In the embodiment of the invention Figure 7 Rear view of.

[0047] Reference numerals: 1-fixed bottom plate, 2-movable guide mechanism, 21-movable guide assembly, 211-first mounting seat, 212-first guide groove, 22-first moving assembly, 221-first moving block, 222-first square mounting block, 23-second square mounting block, 3-bipolar plate clamping mechanism, 31-lifting and retracting rod, 32-limiting assembly, 321-second mounting seat, 322-second guide groove, 33-second moving assembly, 331-second moving block, 332-clamping member, 4-rotation mechanism, 4 1-third mounting seat, 42-first rotating assembly, 421-connecting piece, 422-first electric rotating shaft, 423-connecting rod, 43-second rotating assembly, 431-second electric rotating shaft, 432-fourth mounting seat, 5-welding head clamping mechanism, 51-welding head clamping assembly, 511-first clamping seat, 512-second clamping seat, 513-moving seat, 514-adjusting rod, 52-connecting assembly, 521-first connecting rod, 522-second connecting rod, 53-clamping anti-slip groove, 54-through hole. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0050] In one embodiment, a vanadium battery bipolar plate laser sealing welding device, see Figures 1 to 8 , including a fixed base plate 1, and also including:

[0051] A movable guide mechanism 2, wherein the movable guide mechanism 2 is symmetrically arranged with respect to the fixed bottom plate 1, and the movable guide mechanism 2 is movably connected to the bipolar plate clamping mechanism 3;

[0052] A rotating mechanism 4, one end of which is fixedly connected to the moving guide mechanism 2, the rotating mechanism 4 comprises a third mounting seat 41, a first rotating assembly 42 and a second rotating assembly 43, one end of the third mounting seat 41 is fixedly connected to the moving guide assembly 21, the third mounting seat 41 is connected to the first rotating assembly 42, the first rotating assembly 42 is movably connected to the second rotating assembly 43, and the second rotating assembly 43 is provided with a welding head clamping mechanism 5;

[0053] The first rotating assembly 42 includes a connecting member 421, a first electric rotating shaft 422 and a connecting rod 423. The connecting member 421 is fixedly connected to the third mounting seat 41. The first electric rotating shaft 422 is arranged inside the connecting member 421. The first electric rotating shaft 422 is movably connected to the connecting member 421. The output end of the first electric rotating shaft 422 is connected to the connecting rod 423. The connecting rod 423 is movably connected to the second rotating assembly 43.

[0054] The second rotating assembly 43 includes a second electric rotating shaft 431 and a fourth mounting seat 432, the connecting rod 423 is movably connected to the fourth mounting seat 432, the fourth mounting seat 432 is provided with a welding head clamping mechanism 5, the second electric rotating shaft 431 passes through the connecting rod 423 and the fourth mounting seat 432, and the second electric rotating shaft 431 is movably connected to the fourth mounting seat 432;

[0055] The mobile guide mechanism 2 drives the third mounting seat 41 to move, the third mounting seat 41 drives the connecting member 421 to move, the first electric shaft 422 in the connecting member 421 rotates, the first electric shaft 422 drives the connecting rod 423 to rotate, the connecting rod 423 adopts an L-shaped structure, the connecting rod 423 drives the fourth mounting seat 432 to move through the second electric shaft 431, the direction of the fourth mounting seat 432 is adjusted by the connecting rod 423, and the square shape of the welding head clamping mechanism 5 is adjusted by the fourth mounting seat 432;

[0056] The second electric rotating shaft 431 is started, the second electric rotating shaft 431 drives the fourth mounting seat 432 to rotate, the fourth mounting seat 432 drives the welding head clamping mechanism 5 to rotate, and the angle of the welding head clamping mechanism 5 is adjusted through the fourth mounting seat 432 .

[0057] In this embodiment, after the bipolar plate to be welded is fixed by the bipolar plate clamping mechanism 3, the welding head clamping mechanism 5 is moved to a suitable height by the movable guide mechanism 2, and then the first electric rotating shaft 422 is started, and the first electric rotating shaft 422 rotates to drive the connecting rod 423 to rotate. At this time, since the connecting rod 423 adopts an L-shaped structure, and the connecting rod 423 is movably connected to the fourth mounting seat 432, and the fourth mounting seat 432 adopts a concave plate, the fourth mounting seat 432 is inclined on both sides, so when the fourth mounting seat 432 rotates, the fourth mounting seat 432 will not tilt;

[0058] When the second electric rotating shaft 431 is not started, it plays the role of connecting the fourth mounting seat 432 and the connecting rod 423. The output end of the second electric rotating shaft 431 is connected to the fourth mounting seat 432. When the second electric rotating shaft 431 is started, the second electric rotating shaft 431 drives the fourth mounting seat 432 to rotate, and the direction of the fourth mounting seat 432 is adjusted by the connecting rod 423, and the square of the welding head clamping mechanism 5 is adjusted by the fourth mounting seat 432.

[0059] Start the second electric shaft 431, which drives the fourth mounting seat 432 to rotate, and the fourth mounting seat 432 drives the welding head clamping mechanism 5 to rotate. The angle of the welding head clamping mechanism 5 is adjusted by the fourth mounting seat 432, thereby achieving multi-angle change of the welding head clamping mechanism 5, so as to better perform laser welding on the bipolar plates.

[0060] In one embodiment, see Figures 1 to 8 , the mobile guiding mechanism 2 comprises:

[0061] A movable guide component 21, one end of which is fixedly connected to the fixed base plate 1, the movable guide component 21 is movably connected to the first movable component 22, and the first movable component 22 is fixedly connected to the third mounting seat 41;

[0062] The second square mounting block 23 is fixedly connected to the movable guide assembly 21 , and a bipolar plate clamping mechanism 3 is disposed on one side of the second square mounting block 23 .

[0063] For further information, see Figures 1 to 8 , the mobile guide component 21 includes:

[0064] A first mounting seat 211, one end of which is fixedly connected to the fixed base plate 1, and the first mounting seat 211 is fixedly connected to the second square mounting block 23;

[0065] The first guide groove 212 is disposed in the first mounting seat 211 , and the first guide groove 212 is movably connected to the first moving assembly 22 .

[0066] For further information, see Figures 1 to 8 , the first moving component 22 includes:

[0067] A first moving block 221, wherein the first moving block 221 is movably connected to the first guide groove 212;

[0068] The first square mounting block 222 , the first moving block 221 is fixedly connected to the first square mounting block 222 , and the first square mounting block 222 is fixedly connected to the third mounting seat 41 .

[0069] In this embodiment, the structure of the first mounting seat 211 is a structure with a circular ring in the middle and vertical rods on both sides, so as to ensure that the welding head clamping mechanism 5 will not interfere with the bipolar plate when laser welding the bipolar plate.

[0070] Start the first moving block 221, which is an active member. The first moving block 221 drives the first square mounting block 222, and the first square mounting block 222 drives the third mounting seat 41 to move, so that the third mounting seat 41 drives the connecting member 421 to move, and the first electric shaft 422 in the connecting member 421 rotates, and the first electric shaft 422 drives the connecting rod 423 to rotate. The connecting rod 423 adopts an L-shaped structure, and the connecting rod 423 drives the fourth mounting seat 432 to move through the second electric shaft 431. The direction of the fourth mounting seat 432 is adjusted by the connecting rod 423, and the square of the welding head clamping mechanism 5 is adjusted by the fourth mounting seat 432;

[0071] The bipolar plate clamping mechanism 3 includes a lifting rod 31, a limiting assembly 32 and a second moving assembly 33. The limiting assembly 32 includes a second mounting seat 321 and a second guide groove 322. The second moving assembly 33 includes a second moving block 331 and a clamping member 332. Starting the lifting rod 31 can adjust the position of the second mounting seat 321, and can be adjusted according to bipolar plates of different sizes. After adjusting the second mounting seat 321 to a suitable position,

[0072] The second moving block 331 is started. The second moving block 331 is an active member. The second moving block 331 drives the clamping member 332 to move up and down. The two clamping members 332 are close to each other to clamp the bipolar plate and complete the subsequent laser welding work.

[0073] In one embodiment, see Figures 1 to 8 , the welding rod clamping mechanism 5 comprises:

[0074] A welding rod clamping assembly 51, wherein the welding rod clamping assembly 51 is fixedly connected to the fourth mounting seat 432, and the welding rod clamping assembly 51 is movably connected to the connecting assembly 52;

[0075] A clamping anti-skid groove 53, wherein the clamping anti-skid groove 53 is arranged on the inner wall of the welding rod clamping assembly 51;

[0076] The through hole 54 is disposed in the fourth mounting seat 432 , and the welding rod clamping assembly 51 is movably connected to the fourth mounting seat 432 .

[0077] For further information, see Figures 1 to 8 , the welding rod clamping assembly 51 comprises:

[0078] A first clamping seat 511, one end of which is fixedly connected to the fourth mounting seat 432, and a clamping anti-slip groove 53 is provided on one side of the first clamping seat 511;

[0079] A second clamping seat 512, one end of which is movably connected to the fourth mounting seat 432, and a clamping anti-slip groove 53 is provided on one side of the second clamping seat 512;

[0080] A movable seat 513, wherein the movable seat 513 passes through the through hole 54, and the movable seat 513 is movably connected to the connecting component 52;

[0081] The adjusting rod 514 is movably connected to the moving seat 513 .

[0082] For further information, see Figures 1 to 8 , the connection component 52 includes:

[0083] A first connecting rod 521, wherein the first connecting rod 521 is movably connected to the first clamping seat 511, the first connecting rod 521 is movably connected to the second clamping seat 512, and the first connecting rod 521 is movably connected to the moving seat 513;

[0084] A second connecting rod 522 , one end of which is movably connected to the first clamping seat 511 , and the other end of which is movably connected to the moving seat 513 .

[0085] In this embodiment, when the laser welding head is installed in the welding head clamping assembly 51, one side of the laser welding head is attached to the first clamping seat 511, and the adjusting rod 514 is rotated at this time. The adjusting rod 514 can be fixed at any position by a ratchet structure. The adjusting rod 514 rotates to drive the moving seat 513 to move backward. The moving seat 513 drives the second clamping seat 512 to move through the first connecting rod 521. The second clamping seat 512 is close to the first clamping seat 511, so as to fix the laser welding head.

[0086] The laser welding head is better fixed by the clamping anti-slip groove 53 provided inside the first clamping seat 511 and the second clamping seat 512 to achieve subsequent welding work.

[0087] The working principle of the present invention is:

[0088] When the second electric rotating shaft 431 is not started, it plays the role of connecting the fourth mounting seat 432 and the connecting rod 423. The output end of the second electric rotating shaft 431 is connected to the fourth mounting seat 432. When the second electric rotating shaft 431 is started, the second electric rotating shaft 431 drives the fourth mounting seat 432 to rotate, and the direction of the fourth mounting seat 432 is adjusted by the connecting rod 423, and the square of the welding head clamping mechanism 5 is adjusted by the fourth mounting seat 432.

[0089] Start the second electric shaft 431, which drives the fourth mounting seat 432 to rotate, and the fourth mounting seat 432 drives the welding head clamping mechanism 5 to rotate. The angle of the welding head clamping mechanism 5 is adjusted by the fourth mounting seat 432, thereby achieving multi-angle change of the welding head clamping mechanism 5, so as to better perform laser welding on the bipolar plates.

[0090] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser sealing welding device for bipolar plates of vanadium batteries, comprising a fixed bottom plate, characterized in that: Also includes: A movable guide mechanism, the movable guide mechanism is symmetrically arranged with respect to the fixed bottom plate, and the movable guide mechanism is movably connected to the bipolar plate clamping mechanism; A rotating mechanism, one end of which is fixedly connected to the movable guide mechanism, the rotating mechanism comprising a third mounting seat, a first rotating assembly and a second rotating assembly, one end of the third mounting seat being fixedly connected to the movable guide assembly, the third mounting seat being connected to the first rotating assembly, the first rotating assembly being movably connected to the second rotating assembly, and a welding head clamping mechanism being arranged on the second rotating assembly; The first rotating assembly comprises a connecting member, a first electric rotating shaft and a connecting rod, the connecting member is fixedly connected to the third mounting seat, a first electric rotating shaft is arranged inside the connecting member, the first electric rotating shaft is movably connected to the connecting member, an output end of the first electric rotating shaft is connected to the connecting rod, and the connecting rod is movably connected to the second rotating assembly; The second rotating assembly includes a second electric rotating shaft and a fourth mounting seat, the connecting rod is movably connected to the fourth mounting seat, a welding head clamping mechanism is provided on the fourth mounting seat, the second electric rotating shaft passes through the connecting rod and the fourth mounting seat, and the second electric rotating shaft is movably connected to the fourth mounting seat; The mobile guide mechanism drives the third mounting seat to move, the third mounting seat drives the connecting piece to move, the first electric shaft in the connecting piece rotates, the first electric shaft drives the connecting rod to rotate, the connecting rod adopts an L-shaped structure, the connecting rod drives the fourth mounting seat to move through the second electric shaft, the direction of the fourth mounting seat is adjusted through the connecting rod, and the squareness of the welding head clamping mechanism is adjusted through the fourth mounting seat; The second electric rotating shaft is started, the second electric rotating shaft drives the fourth mounting seat to rotate, the fourth mounting seat drives the welding head clamping mechanism to rotate, and the angle of the welding head clamping mechanism is adjusted by the fourth mounting seat.

2. The vanadium battery bipolar plate laser sealing welding equipment according to claim 1 is characterized in that: The mobile guiding mechanism comprises: A movable guide assembly, one end of which is fixedly connected to the fixed base plate, the movable guide assembly is movably connected to a first movable assembly, and the first movable assembly is fixedly connected to the third mounting seat; A second square mounting block, wherein the second square mounting block is fixedly connected to the movable guide assembly, and a bipolar plate clamping mechanism is disposed on one side of the second square mounting block.

3. The vanadium battery bipolar plate laser sealing welding equipment according to claim 2 is characterized in that: The mobile guide assembly comprises: a first mounting seat, one end of which is fixedly connected to the fixed bottom plate, and the first mounting seat is fixedly connected to the second square mounting block; A first guide groove is provided in the first mounting seat, and the first guide groove is movably connected to the first moving component.

4. The vanadium battery bipolar plate laser sealing welding equipment according to claim 3 is characterized in that: The first moving component comprises: a first moving block, the first moving block being movably connected to the first guide groove; A first square mounting block, the first moving block is fixedly connected to the first square mounting block, and the first square mounting block is fixedly connected to the third mounting seat.

5. The vanadium battery bipolar plate laser sealing welding equipment according to claim 1, characterized in that: The welding head clamping mechanism comprises: A welding head clamping assembly, wherein the welding head clamping assembly is fixedly connected to the fourth mounting seat and is movably connected to the connecting assembly; A clamping anti-skid groove, wherein the clamping anti-skid groove is arranged on the inner wall of the welding head clamping assembly; A through hole is provided in the fourth mounting seat, and the welding head clamping assembly is movably connected to the fourth mounting seat.

6. The vanadium battery bipolar plate laser sealing welding equipment according to claim 5 is characterized in that: The welding head clamping assembly comprises: A first clamping seat, one end of which is fixedly connected to the fourth mounting seat, and a clamping anti-slip groove is provided on one side of the first clamping seat; A second clamping seat, one end of which is movably connected to the fourth mounting seat, and a clamping anti-slip groove is provided on one side of the second clamping seat; A movable seat, the movable seat passes through the through hole, and the movable seat is movably connected to the connecting component; An adjusting rod is movably connected to the moving seat.

7. The vanadium battery bipolar plate laser sealing welding equipment according to claim 6 is characterized in that: The connection component comprises: A first connecting rod, the first connecting rod is movably connected to the first clamping seat, the first connecting rod is movably connected to the second clamping seat, and the first connecting rod is movably connected to the moving seat; A second connecting rod, one end of which is movably connected to the first clamping seat, and the other end of which is movably connected to the moving seat.

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