High-stability limiting mechanism for machining

Abstract

The utility model provides a high-stability limit mechanism for machining, which relates to the technical field of machining and comprises a clamping plate support, threaded rods are connected to the centers of two ends of an inner cavity of the clamping plate support through bearings, and connecting blocks are movably sleeved at two ends of the surfaces of the threaded rods and two limit rods. The clamping device comprises a clamping plate support, two connecting blocks are fixedly installed on the clamping plate support, limiting discs are fixedly installed on the surfaces of the opposite sides of the two connecting blocks correspondingly, a first forward and reverse motor is fixedly connected to the surface of one side of the clamping plate support, rotating assemblies are arranged on the surfaces of the two limiting discs correspondingly, connecting boxes are fixedly connected to one ends of the two rotating assemblies correspondingly, and clamping assemblies are arranged in the two connecting boxes correspondingly. According to the clamping device, the two rotating assemblies are connected, limited and supported through the two limiting discs, the two connecting boxes and the clamping assemblies are rotated through the two rotating assemblies, the two clamping assemblies are fixed through the first limiting strip and the second limiting strip in the two connecting boxes, and parts are clamped through the two clamping assemblies and the two cover plates.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, in particular to a limiting mechanism for mechanical processing with high stability. Background Art

[0002] Machining refers to the process of changing the size or performance of a workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. The mechanical processing process generally refers to the sum of the mechanical processing process of parts and the assembly process of the machine, and other processes are called auxiliary processes.

[0003] In the prior art, during the processing of mechanical parts, the parts need to be clamped, but the common limiting mechanism is difficult to stably clamp the parts when limiting the objects, resulting in poor stability of the limit, which easily causes processing size deviations; secondly, during the processing, it is sometimes necessary to process the remaining surfaces or angles of the parts, and the existing limiting method requires the parts to be removed and reinstalled, which is more laborious.

[0004] Therefore, a limiting mechanism for machining with high stability is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the problems existing in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a limiting mechanism for mechanical processing with high stability, comprising: a splint support, both sides of the two ends of the inner cavity of the splint support are fixedly connected to limiting rods, the centers of the two ends of the inner cavity of the splint support are connected with threaded rods through bearings, the threaded rods and the two ends of the surface of the two limiting rods are movably sleeved with connecting blocks, the opposite side surfaces of the two connecting blocks are fixedly installed with limiting disks, one side surface of the splint support is fixedly connected to a forward and reverse motor, the surfaces of the two limiting disks are provided with rotating components, and the two rotating One end of the component is fixedly connected to a connection box, two side surfaces of the two connection boxes are penetrated with a through groove 1, and the other two side surfaces of the two connection boxes are penetrated with a through groove 2, both ends of the two side surfaces of the two connection boxes are penetrated with a limit strip 1, and both ends of the other two side surfaces of the two connection boxes are penetrated with a limit strip 2, one end of one side surface of the two connection boxes is fixedly connected to a battery, and a clamping component is arranged inside the two connection boxes, one end of the connection box is fixedly connected to a cover plate, and the surface of the cover plate is penetrated with four through grooves 3.

[0007] As a preferred embodiment, the rotating assembly includes a limiting ring, a surface fixing sleeve of the limiting ring is provided with a worm gear ring, a surface of the worm gear ring is meshed with a worm, both ends of the worm are movably sleeved with fixing blocks, and a side surface of one of the fixing blocks is fixedly connected to a forward and reverse motor 2.

[0008] As a preferred embodiment, one end of the limit ring is fixedly installed at the center of one side surface of the connecting box, one end of the two fixed blocks are respectively fixedly connected to the two ends of the one side surface of the connecting block, and the output end of the forward and reverse motors 2 passes through the surface of the corresponding fixed block and is connected to one end of the worm.

[0009] As a preferred embodiment, the clamping assembly includes four tooth plates, one end of the four tooth plates are fixedly connected to a T-shaped limit strip, the four tooth plates are evenly divided into two groups, the inner surfaces of the two groups of tooth plates are meshed with gears, one side surface of the two gears are fixedly installed with a forward and reverse motor three, the surfaces of the two forward and reverse motors three are fixedly sleeved with a hollow clamping plate, the opposite ends of the opposite side surfaces of the two tooth plates in one group are fixedly connected to a clamping claw one, and the opposite ends of the opposite side surfaces of the two tooth plates in the other group are fixedly connected to a clamping claw two.

[0010] As a preferred embodiment, the four T-shaped limit strips are evenly divided into two groups, wherein the two T-shaped limit strips in one group are respectively movably embedded in the two limit strips one, and the two T-shaped limit strips in the other group are respectively movable in the two limit strips two, the two clamping jaws one are respectively movable in the two through grooves two, and the two clamping jaws two are respectively movable in the two through grooves one, the two ends of one of the hollow splints are respectively fixedly installed on one side surface of the two limit strips one, and the two ends of the other hollow splint are respectively fixedly connected to one side surface of the two limit strips two.

[0011] As a preferred implementation, the two clamping jaws 1 and 2 move correspondingly inside the four through slots 3 respectively.

[0012] As a preferred embodiment, the output end of the forward and reverse motor 1 passes through one side surface of the clamping plate support and is connected to one end of the threaded rod, and the two limit plates are movably mounted on one end of the two limit rings.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. The utility model connects the device to an external power supply through a line and starts it through an external controller. When it is necessary to process a mechanical part, the operator first picks up the part, and then starts the forward and reverse motor 1 through the external controller. The output end of the forward and reverse motor 1 rotates to drive the threaded rod connected to it to rotate, and the threaded rod rotates to drive the connecting blocks sleeved at both ends of its surface to move in relative directions. At the same time, the limiting rods on both sides limit the connecting blocks at both ends. When the two connecting blocks move, they drive the connecting box and the clamping assembly connected to them to move together. After the two connecting blocks move to the required position, the parts are placed on the opposite side surfaces of the two cover plates, and then the limiting disk is started again to make the connecting blocks move. The two cover plates clamp the parts, and at the same time, the two forward and reverse motors three inside the clamping assembly are started through an external controller. Since the two clamping assemblies have the same structure, only one of them is described. The rotation of the output ends of the two forward and reverse motors three drives the gears connected to them to rotate, and the rotation of the two gears drives the two tooth plates on their surfaces to move in relative directions. The movement of the four tooth plates drives the two clamps one and the two clamps two to move synchronously until the two clamps one and the two clamps two are clamped at the four ends of the part respectively, and the same operation can be used to control the other clamping assembly to clamp it at the other end of the part. In this way, a stable clamping of the parts can be achieved without any processing size deviation.

[0015] 2. According to the utility model, after the surface processing of one side of the part is completed, when the remaining surfaces need to be processed, the two forward and reverse motors 2 can be controlled by an external controller. Since the structures of the two rotating components are the same, only one of them is described. The output end of the forward and reverse motor 2 rotates to drive the worm connected thereto to rotate, and the rotation of the worm drives the worm gear ring meshing therewith to rotate, and the rotation of the worm gear ring drives the limit ring embedded on its surface to rotate. While the limit ring rotates, the limit disk limits and supports the limit ring to prevent it from tilting. At this time, the limit ring can drive the connecting box to rotate, and the connecting box can drive the clamping component to rotate, and the same operation can be used to control the other rotating component, so that the two clamping components rotate together, driving the part to rotate with it. By adopting this method, when the remaining surfaces or angles of the part need to be processed during the processing, there is no need to remove the part and reinstall it, and the part can rotate in situ, which saves time and effort and is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a limiting mechanism for mechanical processing with high stability provided by the utility model;

[0017] Figure 2 A cross-sectional view of a limit plate of a limit mechanism for mechanical processing with high stability provided by the utility model;

[0018] Figure 3This is a disassembled diagram of a rotating assembly of a limiting mechanism for machining with high stability provided by the utility model;

[0019] Figure 4 A disassembly diagram of a rotating assembly of a limiting mechanism for machining with high stability provided by the utility model

[0020] Figure 5 A combined diagram of a clamping assembly of a limiting mechanism for machining with high stability provided by the utility model;

[0021] Figure 6 This is a disassembled diagram of a connection box of a limiting mechanism for mechanical processing with high stability provided by the utility model;

[0022] Figure 7 This is a disassembled diagram of a clamping assembly of a limiting mechanism for mechanical processing with high stability provided by the utility model;

[0023] Figure 8 This is a disassembly diagram of a clamping assembly of a limiting mechanism for mechanical processing with high stability provided by the utility model;

[0024] Fig. 9 A disassembled diagram of a cover plate of a limiting mechanism for mechanical processing with high stability provided by the utility model.

[0025] Legend:

[0026] 1. Clamp support; 101. Limit rod; 102. Threaded rod; 103. Connecting block; 104. Limiting plate; 105. Forward and reverse motor one; 2. Rotating assembly; 201. Limiting ring; 202. Worm gear ring; 203. Worm; 204. Fixed block; 205. Forward and reverse motor two; 3. Connecting box; 301. Through slot one; 302. Through slot two; 303. Limiting strip one; 304. Limiting strip two; 305. Battery; 4. Clamping assembly; 401. Tooth plate; 402. T-type limiting strip; 403. Gear; 404. Forward and reverse motor three; 405. Hollow clamp; 406. Clamping jaw one; 407. Clamping jaw two; 5. Cover plate; 501. Through slot three. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-9The utility model provides a technical solution: a limiting mechanism for mechanical processing with high stability, comprising: a clamping plate support 1, both sides of the inner cavity of the clamping plate support 1 are fixedly connected to the limiting rods 101, the centers of the two ends of the inner cavity of the clamping plate support 1 are connected with threaded rods 102 through bearings, the threaded rods 102 and the two ends of the surface of the two limiting rods 101 are movably sleeved with connecting blocks 103, the opposite side surfaces of the two connecting blocks 103 are fixedly installed with limiting disks 104, one side surface of the clamping plate support 1 is fixedly connected to the forward and reverse motors 105, the surfaces of the two limiting disks 104 are provided with rotating components 2, and the two rotating components 2 One end of each of the two connection boxes 3 is fixedly connected with a connection box 3, both side surfaces of the two connection boxes 3 are penetrated with a through groove 1 301, and the other side surfaces of the two connection boxes 3 are penetrated with a through groove 2 302, both ends of both side surfaces of the two connection boxes 3 are penetrated with a limit strip 1 303, and both ends of the other side surfaces of the two connection boxes 3 are penetrated with a limit strip 2 304, one end of one side surface of the two connection boxes 3 is fixedly connected with a battery 305, and a clamping assembly 4 is arranged inside the two connection boxes 3, one end of the connection box 3 is fixedly connected with a cover plate 5, and the surface of the cover plate 5 is penetrated with four through grooves 3 501.

[0029] Specifically: the limit rod 101 and the threaded rod 102 are supported by the clamp support 1, the threaded rod 102 is driven by the forward and reverse motor 105, the two connecting blocks 103 and the limit plate 104 are driven by the threaded rod 102, the two rotating components 2 are connected and supported by the two limit plates 104, the two connecting boxes 3 and the clamping components 4 are rotated by the two rotating components 2, the two clamping components 4 are fixed by the two limit bars 1 303 and the limit bars 2 304 inside the two connecting boxes 3, the parts are clamped by the two clamping components 4 and the two cover plates 5, and the two forward and reverse motors 3 404 are powered by the battery 305.

[0030] In one embodiment, the rotating component 2 includes a limiting ring 201, a worm gear ring 202 is fixedly sleeved on the surface of the limiting ring 201, a worm 203 is meshed on the surface of the worm gear ring 202, and both ends of the worm 203 are movably sleeved with fixing blocks 204, and a forward and reverse motor 205 is fixedly connected to the surface of one side of the fixing blocks 204.

[0031] Specifically: by starting the forward and reverse motor 205, the output end of the forward and reverse motor 205 rotates to drive the worm 203 connected thereto to rotate, the rotation of the worm 203 drives the worm gear ring 202 meshing therewith to rotate, the rotation of the worm gear ring 202 drives the limit ring 201 embedded on its surface to rotate, and while the limit ring 201 rotates, the limit plate 104 limits and supports the limit ring 201 to prevent it from tilting. At this time, the limit ring 201 can drive the connecting box 3 to rotate, the connecting box 3 drives the clamping assembly 4 to rotate, and then the clamping assembly 4 drives the parts to rotate.

[0032] In one embodiment, one end of the limit ring 201 is fixedly installed at the center of one side surface of the connecting box 3, one end of the two fixed blocks 204 are respectively fixedly connected to the two ends of the one side surface of the connecting block 103, and the output end of the forward and reverse motor 205 passes through the surface of the corresponding fixed block 204 and is connected to one end of the worm 203.

[0033] Specifically: by fixing one end of the limit ring 201 at the center of one side surface of the connecting box 3, the connecting box 3 can be driven to rotate together when it rotates; by fixing one end of the two fixing blocks 204 at the two ends of the bottom of one side surface of the connecting block 103 respectively, the connecting block 103 can be fixed itself; by passing the output end of the forward and reverse motor 205 through the surface of the corresponding fixing block 204 and connecting it to one end of the worm 203, the worm 203 can be driven to rotate together when its output end rotates.

[0034] In one embodiment, the clamping assembly 4 includes four tooth plates 401, one end of each of the four tooth plates 401 is fixedly connected to a T-shaped limit strip 402, and the four tooth plates 401 are evenly divided into two groups, the inner surfaces of the two groups of tooth plates 401 are meshed with gears 403, and one side surface of each of the two gears 403 is fixedly installed with a forward and reverse motor three 404, and the surfaces of the two forward and reverse motors three 404 are fixedly sleeved with a hollow clamping plate 405, and the opposite ends of the opposite side surfaces of the two tooth plates 401 of one group are fixedly connected to a clamping jaw 1 406, and the opposite ends of the opposite side surfaces of the two tooth plates 401 of the other group are fixedly connected to a clamping jaw 2 407.

[0035] Specifically: by starting the two forward and reverse motors 3 404 inside the clamping assembly 4, the rotation of the output ends of the two forward and reverse motors 3 404 drives the gear 403 connected thereto to rotate, and the rotation of the two gears 403 drives the two tooth plates 401 on their surfaces to move in relative directions, and the movement of the four tooth plates 401 drives the two clamping jaws 1 406 and the two clamping jaws 2 407 to move synchronously, until the two clamping jaws 1 406 and the two clamping jaws 2 407 are clamped at the four ends of the part respectively, and the same operation can be used to control another clamping assembly 4 to clamp it at the other end of the part, at this time, a firm clamping of the part can be achieved, and extension blocks are provided at both ends of the four tooth plates 401 to prevent them from disengaging from the gear 403 meshing therewith, and the length of the two clamping jaws 2 407 is longer than the two clamping jaws 1 406, so that the protruding ends thereof are flush with the two clamping jaws 1 406.

[0036] In one embodiment, the four T-shaped limit strips 402 are evenly divided into two groups, in which the two T-shaped limit strips 402 in one group are respectively movably embedded in the two limit strips 1 303, and the two T-shaped limit strips 402 in the other group are respectively movable in the two limit strips 2 304, the two clamping jaws 1 406 are respectively movable in the two through grooves 2 302, and the two clamping jaws 2 407 are respectively movable in the two through grooves 1 301, and the two ends of one hollow splint 405 are respectively fixedly installed on one side surface of the two limit strips 1 303, and the two ends of the other hollow splint 405 are respectively fixedly connected to the one side surface of the two limit strips 2 304.

[0037] Specifically: by evenly dividing the four T-shaped limit strips 402 into two groups, one group of two T-shaped limit strips 402 are respectively movably embedded in the two limit strips 1 303, and the other group of two T-shaped limit strips 402 are respectively movable in the two limit strips 2 304, so that the four T-shaped limit strips 402 are respectively limited and supported by the two limit strips 1 303 and the limit strips 2 304, by respectively moving the two clamping jaws 1 406 in the two through grooves 2 302, and moving the two clamping jaws 2 407 in the two through grooves 1 301, so that the two clamping jaws 1 406 and the clamping jaws 2 407 will not be hindered when moving, by respectively fixing the two ends of one of the hollow splints 405 on one side surface of the two limit strips 1 303, and respectively fixing the two ends of the other hollow splint 405 on one side surface of the two limit strips 2 304, so that the two hollow splints 405 are fixed by the two limit strips 1 303 and the limit strips 2 304.

[0038] In one embodiment, the two first clamping jaws 406 and the second clamping jaws 407 are movable inside the four third through slots 501 respectively and correspondingly.

[0039] Specifically, the two clamping jaws 1 406 and the two clamping jaws 2 407 are moved correspondingly inside the four through slots 3 501 , so that the movement thereof will not be hindered.

[0040] In one embodiment, the output end of the forward and reverse motor 105 passes through one side surface of the clamping plate support 1 and is connected to one end of the threaded rod 102, and the two limit plates 104 are movably mounted on one end of the two limit rings 201 respectively.

[0041] Specifically: by passing the output end of the forward and reverse motor 105 through one side surface of the clamp support 1 and connecting it to one end of the threaded rod 102, the forward and reverse motor 105 can drive the two connecting blocks 103 to move through the threaded rod 102, and by movably sleeved the two limit plates 104 on one end of the two limit rings 201 respectively, the two limit rings 201 are limited and supported.

[0042] Working principle: The device is connected to an external power supply through a line and started by an external controller. When the mechanical parts need to be processed, the operator first picks up the parts, and then starts the forward and reverse motor 105 through the external controller. The output end of the forward and reverse motor 105 rotates to drive the threaded rod 102 connected to it to rotate. The rotation of the threaded rod 102 drives the connecting blocks 103 sleeved on both ends of its surface to move in relative directions. At the same time, the limiting rods 101 on both sides limit the connecting blocks 103 at both ends. When the two connecting blocks 103 move, they drive the connecting box 3 and the clamping assembly 4 connected to them to move together until the two connecting blocks 103 move. After moving to the required position, the part is placed on the opposite side surfaces of the two cover plates 5, and then the limit plate 104 is started to clamp the part. At the same time, the two forward and reverse motors 3 404 inside the clamping assembly 4 are started through the external controller. Since the two clamping assemblies 4 have the same structure, only one of them is described. The rotation of the output ends of the two forward and reverse motors 3 404 drives the gears 403 connected thereto to rotate. The rotation of the two gears 403 drives the two tooth plates 401 on the surface thereof to move in opposite directions. The movement of the four tooth plates 401 drives the two clamping claws 1 406 and the two clamping claws 2 407 to move synchronously until the two clamping claws 1 406 and the two clamping claws 407 are connected. The two clamping claws 407 are respectively clamped at the four ends of the part, and the same operation can be used to control another clamping component 4 to clamp the other end of the part. In this way, the part can be firmly clamped without any deviation in the processing size. After the surface of one side of the part is processed, when the remaining surfaces need to be processed, the two forward and reverse motors 205 can be controlled by an external controller. Since the structures of the two rotating components 2 are the same, only one of them is described. The output end of the forward and reverse motor 205 rotates to drive the worm 203 connected to it to rotate, and the rotation of the worm 203 drives the worm gear ring 202 meshing with it to rotate. The rotation of the worm gear ring 202 drives the limit ring 201 embedded on its surface to rotate. While the limit ring 201 rotates, the limit plate 104 limits and supports the limit ring 201 to prevent it from tilting. At this time, the limit ring 201 can drive the connecting box 3 to rotate, and the connecting box 3 can drive the clamping assembly 4 to rotate. The same operation can be used to control another rotating assembly 2, so that the two clamping assemblies 4 rotate together, driving the parts to rotate with it. In this way, when the remaining surfaces or angles of the parts need to be processed during the processing, there is no need to remove the parts and reinstall them, and the parts can rotate in place, which saves time and effort and is more convenient.

[0043] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A limiting mechanism for machining with high stability, characterized in that: include: A splint support (1), both sides of the inner cavity of the two ends of the splint support (1) are fixedly connected to limit rods (101), the centers of the two ends of the inner cavity of the splint support (1) are connected to threaded rods (102) through bearings, both ends of the threaded rods (102) and the surfaces of the two limit rods (101) are movably sleeved with connecting blocks (103), the opposite side surfaces of the two connecting blocks (103) are fixedly installed with limit disks (104), one side surface of the splint support (1) is fixedly connected to a forward and reverse motor (105), the surfaces of the two limit disks (104) are provided with rotating components (2), one end of the two rotating components (2) is A connection box (3) is fixedly connected, and two side surfaces of the two connection boxes (3) are both provided with a through groove 1 (301), and the other two side surfaces of the two connection boxes (3) are both provided with a through groove 2 (302). Both ends of the two side surfaces of the two connection boxes (3) are both provided with a through limit strip 1 (303), and both ends of the other two side surfaces of the two connection boxes (3) are both provided with a through limit strip 2 (304). A clamping assembly (4) is provided inside the two connection boxes (3), and one end of the connection box (3) is fixedly connected with a cover plate (5), and the surface of the cover plate (5) is provided with four through grooves 3 (501).

2. A mechanical processing limiting mechanism with high stability according to claim 1, characterized in that: The rotating assembly (2) comprises a limiting ring (201), a worm gear ring (202) is fixedly sleeved on the surface of the limiting ring (201), a worm (203) is meshed on the surface of the worm gear ring (202), both ends of the worm (203) are movably sleeved with fixing blocks (204), and a forward and reverse motor 2 (205) is fixedly connected to a surface of one side of one of the fixing blocks (204).

3. A mechanical processing limiting mechanism with high stability according to claim 2, characterized in that: One end of the limit ring (201) is fixedly mounted at the center of a side surface of the connection box (3), one end of the two fixed blocks (204) are respectively fixedly connected to the two ends of a side surface of the connection block (103), and the output end of the second forward and reverse motor (205) passes through the surface of the corresponding fixed block (204) and is connected to one end of the worm (203).

4. A mechanical processing limiting mechanism with high stability according to claim 1, characterized in that: The clamping assembly (4) comprises four tooth plates (401), one end of each of the four tooth plates (401) is fixedly connected to a T-shaped limit strip (402), the four tooth plates (401) are evenly divided into two groups, the inner surfaces of the two groups of tooth plates (401) are meshed with gears (403), one side surface of each of the two gears (403) is fixedly mounted with a forward and reverse motor three (404), the surfaces of the two forward and reverse motors three (404) are fixedly sleeved with a hollow clamping plate (405), the opposite ends of the opposite side surfaces of the two tooth plates (401) in one group are fixedly connected to a clamping jaw one (406), and the opposite ends of the opposite side surfaces of the two tooth plates (401) in the other group are fixedly connected to a clamping jaw two (407).

5. A mechanical processing limiting mechanism with high stability according to claim 4, characterized in that: The four T-shaped limit strips (402) are evenly divided into two groups, wherein the two T-shaped limit strips (402) in one group are respectively movably embedded in the two limit strips (303), and the two T-shaped limit strips (402) in the other group are respectively movably embedded in the two limit strips (304). The two clamping jaws (406) are respectively movably in the two through grooves (302), and the two clamping jaws (407) are respectively movably in the two through grooves (301). The two ends of one of the hollow splints (405) are respectively fixedly mounted on one side surface of the two limit strips (303), and the two ends of the other hollow splint (405) are respectively fixedly connected to one side surface of the two limit strips (304).

6. A mechanical processing limiting mechanism with high stability according to claim 4, characterized in that: The two clamping jaws 1 (406) and the two clamping jaws 2 (407) are respectively movable inside the four through slots 3 (501).

7. A mechanical processing limiting mechanism with high stability according to claim 1, characterized in that: The output end of the forward and reverse motor (105) passes through the side surface of the clamping plate support (1) and is connected to one end of the threaded rod (102); the two limit plates (104) are movably mounted on one end of the two limit rings (201), and one end of the side surface of the two connection boxes (3) is fixedly connected to a battery (305).

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