Lithium battery welding clamp

Abstract

The utility model belongs to the technical field of lithium battery welding, and particularly relates to a lithium battery welding clamp which comprises a workbench and a rotating seat, a starting device is arranged in the rotating seat, and the starting device comprises a starting motor, a control rod, two movable clamping plates and two clamping plates. According to the lithium battery welding clamp, when a lithium battery is welded, an adjusting rod is rotated, two limiting arc plates are controlled to slightly clamp the lithium battery in the middle, then a starting motor is started, a rotating shaft drives a control rod to rotate, two movable clamping plates are controlled to horizontally and oppositely move, two clamping plates are driven to clamp the lithium battery, and a sliding rod is extruded during clamping; when the pressure sensor exceeds a certain numerical value, the starting motor is stopped, the pressure is kept within a certain interval, the rotating seat is controlled to rotate when the driving motor is started, and welding of the lithium battery is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery welding, in particular to a lithium battery welding fixture. Background Art

[0002] For example, in a lithium battery welding fixture (application number: 202120239147.1) disclosed on the Chinese Patent Network, in order to facilitate the production of lithium batteries in small batches, two adjusting studs are used to adjust the position of the pressing plate, and then the lithium battery is limited. However, during the limiting process, the pressure of the pressing plate on the lithium battery cannot be detected and restricted. In this way, if the pressure is too small, the lithium battery will be insufficiently limited and move, and if the pressure is too large, the lithium battery will be over-pressed and damaged. Content of the Utility Model

[0003] Based on the technical problem that the pressure that the existing lithium battery can withstand cannot be detected and restricted, the utility model provides a lithium battery welding fixture.

[0004] A lithium battery welding fixture provided by the utility model includes a workbench and a rotating seat. An activation device is arranged inside the rotating seat. The activation device includes an activation motor, a control rod, two moving clamping plates and two clamping plates. When the activation motor is started, the rotating shaft drives the control rod to rotate. The control rod controls the two moving clamping plates to move horizontally towards each other, and the moving clamping plates drive the clamping plates to move horizontally along the surface of the rotating seat.

[0005] Preferably, the activation motor is fixedly installed inside the rotating seat. A clamping groove is formed inside the rotating seat. Both of the two moving clamping plates are slidably inserted into the clamping groove. Both of the two clamping plates are slidably connected to the outer surface of the rotating seat. The outer surface of the clamping plate is fixedly connected to the outer surface of the moving clamping plate.

[0006] Through the above technical solution, the moving clamping plate slides in the clamping groove, ensuring that the clamping plate always slides along the outer surface of the rotating seat.

[0007] Preferably, the control rod is fixedly connected to the rotating shaft of the activation motor. The outer surface of the control rod is threadedly connected to the inside of the moving clamping plate. A driving motor is fixedly installed inside the workbench. A rotating rod is fixedly connected to the rotating shaft of the driving motor.

[0008] Through the above technical solution, when the activation motor is started, the rotating shaft drives the control rod to rotate. The control rod is actually a double-threaded screw rod. When rotating, it can control the two moving clamping plates to move horizontally towards each other. When the driving motor is started, the rotating shaft drives the rotating rod to rotate.

[0009] Preferably, the outer surface of the rotating rod is fixedly connected to the outer surface of the rotating seat. A sliding rod is slidably inserted into the interior of the clamping plate. A limiting rod is fixedly installed on the outer surface of the sliding rod, and the limiting rod is slidably connected within the clamping plate.

[0010] Through the above technical solution, the rotating rod drives the rotating seat to rotate, and the limiting rod slides within the clamping plate, ensuring that the sliding rod remains sliding within the clamping plate.

[0011] Preferably, a pressure sensor is fixedly installed within the clamping plate. A spring is fixedly connected to the outer surface of the sliding rod, and the other end of the spring is fixedly connected to the outer surface of the pressure sensor. Sliding plates are slidably connected to the upper and lower ends of the outer surface of the rotating seat between the two clamping plates.

[0012] Through the above technical solution, when the sliding rod is squeezed, the spring will squeeze the pressure sensor, thereby detecting the squeezing force on the clamping plate.

[0013] Preferably, a limiting clamping plate is slidably inserted into the interior of the rotating seat. The outer surface of the limiting clamping plate is fixedly connected to the outer surface of the sliding plate. A limiting arc plate is fixedly connected to the outer surface of the sliding plate. An adjusting rod is rotatably connected within the interior of the rotating seat. A limiting circular plate is fixedly installed on the lower end surface of the adjusting rod, and the limiting circular plate is rotatably connected within the interior of the rotating seat. The outer surface of the adjusting rod is threadedly connected to the interior of the limiting clamping plate.

[0014] Through the above technical solution, the limiting clamping plate moves within the rotating seat, ensuring that the sliding plate always closely adheres to the surface of the rotating seat during movement. The adjusting rod is also a double-threaded screw rod. When rotated, it controls the two limiting clamping plates to move linearly towards each other in the vertical direction.

[0015] The beneficial effects of the present utility model are as follows:

[0016] By providing a starting device, when welding a lithium battery, the lithium battery is first limited. First, place the lithium battery between the two limiting arc plates, rotate the adjusting rod, control the two limiting clamping plates to move linearly towards each other in the vertical direction, drive the two sliding plates and the limiting arc plates to move, and the limiting arc plates gently clamp the lithium battery in the middle. At this time, there is no need to forcefully clamp the lithium battery, ensuring that the lithium battery can move horizontally. Then start the starting motor, let the rotating shaft drive the control rod to rotate, control the two moving clamping plates to move horizontally towards each other, drive the two clamping plates to clamp the lithium battery. When being clamped, the sliding rod is squeezed, the spring will squeeze the pressure sensor, thereby detecting the squeezing force on the clamping plate. When the pressure sensor exceeds a certain value, stop the starting motor to keep the pressure within a certain range. When the driving motor starts, control the rotating seat to rotate, facilitating the welding of the lithium battery, achieving the effect of conveniently detecting the pressure borne by the lithium battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a lithium battery welding fixture proposed by the present utility model;

[0018] Figure 2 Three-dimensional view of the control rod structure of a lithium battery welding fixture proposed by the present utility model;

[0019] Figure 3 Cross-sectional view of the rotating seat structure of a lithium battery welding fixture proposed by the present utility model;

[0020] Figure 4 Cross-sectional view of the clamping plate structure of a lithium battery welding fixture proposed by the present utility model.

[0021] In the figure: 1, workbench; 11, drive motor; 12, rotating rod; 2, rotating seat; 21, card slot; 22, sliding plate; 23, limit clamping plate; 24, limit arc plate; 25, adjusting rod; 26, limit circular plate; 3, starting motor; 4, control rod; 5, moving clamping plate; 6, clamping plate; 61, sliding rod; 62, limiting rod; 63, pressure sensor; 64, spring. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] Refer to Figures 1 - 4 , a lithium battery welding fixture, including a workbench 1 and a rotating seat 2. In order to facilitate the limitation of the lithium battery, a starting device is provided inside the rotating seat 2. The starting device includes a starting motor 3, a control rod 4, two moving clamping plates 5 and two clamping plates 6. When the starting motor 3 starts, the rotating shaft drives the control rod 4 to rotate, and the control rod 4 controls the two moving clamping plates 5 to move horizontally towards each other, and the moving clamping plates 5 drive the clamping plates 6 to move horizontally along the surface of the rotating seat 2.

[0024] In order to ensure that the clamping plate 6 always slides along the outer surface of the rotating seat 2, the starting motor 3 is fixedly installed inside the rotating seat 2. A card slot 21 is opened inside the rotating seat 2. Both of the two moving clamping plates 5 are slidably inserted into the card slot 21. Both of the two clamping plates 6 are slidably connected to the outer surface of the rotating seat 2. The outer surface of the clamping plate 6 is fixedly connected to the outer surface of the moving clamping plate 5. The moving clamping plate 5 slides in the card slot 21 to ensure that the clamping plate 6 always slides along the outer surface of the rotating seat 2.

[0025] To facilitate the control of the horizontal inward movement of the two moving clamping plates 5, the control rod 4 is fixedly connected to the rotating shaft of the starting motor 3. The outer surface of the control rod 4 is threadedly connected to the inside of the moving clamping plate 5. A driving motor 11 is fixedly installed inside the workbench 1, and a rotating rod 12 is fixedly connected to the rotating shaft of the driving motor 11. When the starting motor 3 is started, the rotating shaft drives the control rod 4 to rotate. The control rod 4 is actually a double-threaded screw rod, and when it rotates, it can control the horizontal inward movement of the two moving clamping plates 5. When the driving motor 11 is started, the rotating shaft drives the rotating rod 12 to rotate.

[0026] To ensure that the sliding rod 61 slides inside the clamping plate 6, the outer surface of the rotating rod 12 is fixedly connected to the outer surface of the rotating seat 2. The sliding rod 61 is slidably inserted into the inside of the clamping plate 6. A limiting rod 62 is fixedly installed on the outer surface of the sliding rod 61, and the limiting rod 62 is slidably connected to the inside of the clamping plate 6. The rotating rod 12 drives the rotating seat 2 to rotate, and the limiting rod 62 slides while being stuck inside the clamping plate 6, ensuring that the sliding rod 61 slides inside the clamping plate 6.

[0027] To facilitate the detection of the extrusion force of the clamping plate 6, a pressure sensor 63 is fixedly installed inside the clamping plate 6. A spring 64 is fixedly connected to the outer surface of the sliding rod 61, and the other end of the spring 64 is fixedly connected to the outer surface of the pressure sensor 63. Sliding plates 22 are slidably connected to the upper and lower ends of the outer surface of the rotating seat 2 between the two clamping plates 6. When the sliding rod 61 is extruded, the spring 64 will extrude the pressure sensor 63, thereby detecting the extrusion force of the clamping plate 6.

[0028] To facilitate the control of the vertical inward linear movement of the two limiting clamping plates 23, the limiting clamping plates 23 are slidably inserted into the inside of the rotating seat 2. The outer surface of the limiting clamping plate 23 is fixedly connected to the outer surface of the sliding plate 22. A limiting arc plate 24 is fixedly connected to the outer surface of the sliding plate 22. An adjusting rod 25 is rotatably connected to the inside of the rotating seat 2. A limiting circular plate 26 is fixedly installed on the lower end surface of the adjusting rod 25, and the limiting circular plate 26 is rotatably connected to the inside of the rotating seat 2. The outer surface of the adjusting rod 25 is threadedly connected to the inside of the limiting clamping plate 23. The limiting clamping plates 23 move while being stuck inside the rotating seat 2, ensuring that the sliding plate 22 always moves closely against the surface of the rotating seat 2. The adjusting rod 25 is also a double-threaded screw rod, and when it rotates, it controls the vertical inward linear movement of the two limiting clamping plates 23.

[0029] By setting up a starting device, when welding a lithium battery, the lithium battery is first limited in position. First, place the lithium battery between two limiting arc plates 24, rotate the adjusting rod 25 to control the two limiting clamping plates 23 to move linearly towards each other in the vertical direction, drive the two sliding plates 22 and the limiting arc plates 24 to move, and the limiting arc plates 24 gently clamp the lithium battery in the middle. At this time, there is no need to forcefully clamp the lithium battery to ensure that the lithium battery can move horizontally. Then, start the starting motor 3 to drive the rotating shaft to drive the control rod 4 to rotate, control the two moving clamping plates 5 to move horizontally towards each other, drive the two clamping plates 6 to clamp the lithium battery. When clamping, the sliding rod 61 is squeezed, and the spring 64 will squeeze the pressure sensor 63, thereby detecting the squeezing force of the clamping plate 6. When the pressure sensor 63 exceeds a certain value, stop the starting motor 3 to keep the pressure within a certain range. When the driving motor 11 starts, control the rotating seat 2 to rotate, which is convenient for welding the lithium battery, achieving the effect of conveniently detecting the pressure borne by the lithium battery.

[0030] Working principle: When welding a lithium battery, first limit the position of the lithium battery. First, place the lithium battery between two limiting arc plates 24, rotate the adjusting rod 25 to control the two limiting clamping plates 23 to move linearly towards each other in the vertical direction, drive the two sliding plates 22 and the limiting arc plates 24 to move, and the limiting arc plates 24 gently clamp the lithium battery in the middle. At this time, there is no need to forcefully clamp the lithium battery to ensure that the lithium battery can move horizontally. Then, start the starting motor 3 to drive the rotating shaft to drive the control rod 4 to rotate, control the two moving clamping plates 5 to move horizontally towards each other, drive the two clamping plates 6 to clamp the lithium battery. When clamping, the sliding rod 61 is squeezed, and the spring 64 will squeeze the pressure sensor 63, thereby detecting the squeezing force of the clamping plate 6. When the pressure sensor 63 exceeds a certain value, stop the starting motor 3 to keep the pressure within a certain range. When the driving motor 11 starts, control the rotating seat 2 to rotate, which is convenient for welding the lithium battery.

[0031] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A lithium battery welding fixture, comprising a workbench (1) and a rotating seat (2), characterized in that: A starting device is arranged inside the rotating seat (2). The starting device includes a starting motor (3), a control rod (4), two moving clamping plates (5) and two clamping plates (6). When the starting motor (3) starts, the rotating shaft drives the control rod (4) to rotate. The control rod (4) controls the two moving clamping plates (5) to move horizontally towards each other. The moving clamping plates (5) drive the clamping plates (6) to move horizontally along the surface of the rotating seat (2).

2. The lithium battery welding fixture according to claim 1, characterized in that: The starting motor (3) is fixedly installed inside the rotating seat (2). A clamping groove (21) is formed inside the rotating seat (2). The two moving clamping plates (5) are both slidably inserted into the clamping groove (21). The two clamping plates (6) are both slidably connected to the outer surface of the rotating seat (2). The outer surface of the clamping plate (6) is fixedly connected to the outer surface of the moving clamping plate (5).

3. The lithium battery welding fixture according to claim 1, wherein: The control rod (4) is fixedly connected to the rotating shaft of the starting motor (3). The outer surface of the control rod (4) is threadedly connected to the inside of the moving clamping plate (5). A driving motor (11) is fixedly installed inside the workbench (1). A rotating rod (12) is fixedly connected to the rotating shaft of the driving motor (11).

4. A lithium battery welding fixture according to claim 3, characterized in that: The outer surface of the rotating rod (12) is fixedly connected to the outer surface of the rotating seat (2). A sliding rod (61) is slidably inserted into the clamping plate (6). A limiting rod (62) is fixedly installed on the outer surface of the sliding rod (61). The limiting rod (62) is slidably connected to the inside of the clamping plate (6).

5. The lithium battery welding fixture according to claim 4, wherein: A pressure sensor (63) is fixedly installed inside the clamping plate (6). A spring (64) is fixedly connected to the outer surface of the sliding rod (61). The other end of the spring (64) is fixedly connected to the outer surface of the pressure sensor (63). Sliding plates (22) are slidably connected to the upper and lower ends of the outer surface of the rotating seat (2) between the two clamping plates (6).

6. The lithium battery welding fixture according to claim 5, wherein: A limiting clamping plate (23) is slidably inserted into the rotating seat (2). The outer surface of the limiting clamping plate (23) is fixedly connected to the outer surface of the sliding plate (22). A limiting arc plate (24) is fixedly connected to the outer surface of the sliding plate (22). An adjusting rod (25) is rotatably connected to the inside of the rotating seat (2). A limiting circular plate (26) is fixedly installed on the lower end surface of the adjusting rod (25). The limiting circular plate (26) is rotatably connected to the inside of the rotating seat (2). The outer surface of the adjusting rod (25) is threadedly connected to the inside of the limiting clamping plate (23).

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