A battery filler port sealing auxiliary device

Abstract

This utility model belongs to the field of battery manufacturing technology, and particularly relates to a battery filling port sealing auxiliary device, including a frame, comprising: a clamping mechanism including a clamping member, and a first driving unit for driving the clamping member to move in a first direction, the first driving unit being disposed on the frame, the clamping member having a welding port penetrating the clamping member; a pinning mechanism including a pinning member, and a second driving unit located on the end face of the clamping member facing the battery to be welded, the second driving unit driving the pinning member to move toward the welding port; the pinning member being rotatably disposed on the driving end of the second driving unit; this application can effectively avoid incomplete welding of the sealing pin.

Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, and in particular relates to a battery filling port sealing auxiliary device. Background Technology

[0002] In the battery manufacturing process, the electrolyte filling port is usually sealed by inserting steel balls into it to prevent the electrolyte from overflowing. However, this structure is prone to leakage. Another method is to weld sealing nails to the filling port to achieve a seal. However, the sealing nails usually need to be pressed firmly against the battery end face before welding to prevent gaps between them and avoid poor welding that could affect the sealing effect.

[0003] In the existing technology CN112894212A, a welding clamping device, sealing nail welding machine, and welding method are disclosed, a second driving unit is controlled to move horizontally by a first driving element, and then the clamping assembly is controlled to move vertically to abut against the sealing nail, thereby achieving the clamping of the sealing nail on the battery end face. However, this structural design requires a large number of driving units, resulting in high production costs. In addition, the space occupied by multiple driving units is also large, resulting in a large overall size of the device, which is inconvenient for the overall installation and layout of the device in the production workshop. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a battery filling port sealing auxiliary device.

[0005] In view of this, the present invention provides a battery filling port sealing auxiliary device, including a frame, comprising: The clamping mechanism includes a clamping member and a first driving unit that drives the clamping member to move in a first direction. The first driving unit is mounted on a frame, and the clamping member has a weld joint that penetrates the clamping member. The nailing mechanism includes a nailing member and a second drive unit located on the end face of the nailing member facing the side of the battery to be welded. The second drive unit drives the nailing member to move toward the welding joint. The pressure pin is rotatably mounted on the drive end of the second drive unit.

[0006] Furthermore, the angle at which the pressure pin can rotate is 4-10°.

[0007] Furthermore, the driving end of the second driving unit is provided with a fixed seat, the fixed seat is provided with a positioning component and a limiting component, the pressing component is provided with a rotating positioning hole that can be rotatably connected to the positioning component, and a swing limiting hole that cooperates with the limiting component.

[0008] Furthermore, the nail-pressing mechanism also includes a reset member, which is disposed between the fixed base and the nail-pressing member for rotating and resetting the nail-pressing member.

[0009] Furthermore, the end face of the clamping member used to clamp the battery is also provided with a receiving groove extending to the welding joint, the receiving groove being used for the clamping member to move toward the welding joint.

[0010] Furthermore, the second drive unit drives the pressure pin to move in an inclined direction within the receiving groove.

[0011] Furthermore, the clamping element includes: A mounting bracket is movably mounted on the frame in a first direction; A pressure plate, which is detachably mounted on a mounting bracket, is used to abut the battery end cap.

[0012] Furthermore, the cover plate includes; The clearance groove is provided on the side of the cover plate used for pressing.

[0013] Furthermore, the clamping mechanism also includes: The slider guide module and the fixed frame are connected to the frame through the slider guide module.

[0014] Furthermore, the clamping mechanism also includes: A stop is mounted on a fixed frame to limit the movement of the fixed frame in a first direction. A buffer element is mounted on a fixed frame and is used to abut against the frame in the first direction Z.

[0015] One of the above technical solutions has the following advantages or beneficial effects: By setting a first drive unit to move and press the clamping component to secure the battery, the battery can be fixed in place. A second drive unit on the clamping component drives a pressure pin to move towards the weld joint. During this movement, the pressure pin rotates, causing its end to press against the sealing pin on the battery, thus pressing the sealing pin firmly against the battery's electrolyte filling port. This ensures no gaps exist between the sealing pin and the battery, preventing incomplete welds. Furthermore, this structural design requires only one second drive unit to achieve the pressing of the pressure pin against the sealing pin, resulting in a simpler structure, reduced space occupation, lower production costs, and higher economic benefits. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A; Figure 4 This is a partial structural diagram of the clamping component in this utility model; Figure 5 This is a partial structural cross-sectional view of the clamping component in this utility model; The markings in the diagram are as follows: 1. Frame; 2. Clamping component; 21. Weld joint; 22. Receiving groove; 23. Fixing frame; 24. Cover plate; 25. Clearance groove; 26. Stop component; 27. Buffer component; 3. First drive unit; 4. Pressing pin component; 41. Mounting part; 42. Rotation positioning hole; 43. Swing limiting hole; 5. Second drive unit; 6. Fixing base; 61. Positioning component; 62. Limiting component; 7. Reset component; 8. Slider guide rail module; 9. Welding device; Z, First direction. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0018] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0019] Example 1: This embodiment provides a battery filling port sealing auxiliary device, including a frame 1, comprising: The clamping mechanism includes a clamping member 2 and a first driving unit 3 that drives the clamping member 2 to move along the first direction Z. The first driving unit 3 is disposed on the frame 1, and the clamping member 2 is provided with a welding port 21 that penetrates the clamping member 2. The nailing mechanism includes a nailing component 4 and a second drive unit 5 located on the end face of the clamping component 2 facing the side of the battery to be welded. The second drive unit 5 drives the nailing component 4 to move toward the welding port 21. The pressure pin 4 is rotatably mounted on the drive end of the second drive unit 5.

[0020] In this technical solution, the battery is first placed below the clamping member 2, and the battery's liquid injection port is positioned directly opposite the welding port 21 of the clamping member 2. Then, the first driving unit 3 drives the clamping member 2 to descend along the first direction Z. The first driving unit 3 can be a cylinder or an electric cylinder, etc. The clamping member 2 abuts against the end of the battery to press and fix the battery.

[0021] Then the second drive unit 5 drives the pressing pin 4 to move closer to the welding port 21. The second drive unit 5 can also be a cylinder or an electric cylinder. The end of the pressing pin 4 abuts against the sealing pin, pressing the sealing pin tightly at the injection port. When the pressing pin 4 abuts against the sealing pin and is in an overpressure state on the sealing pin, the pressing pin 4 will rotate in the direction away from the sealing pin to reduce the pressure acting on the sealing pin and play a buffering effect to prevent the pressing pin 4 from pressing down too much and causing damage to the sealing pin.

[0022] After the sealing nail is pressed onto the battery's filling port, the welding device 9 welds the sealing nail through the welding port 21, so that the sealing nail is welded onto the battery's filling port to seal the filling port and effectively prevent the battery from leaking liquid. After the sealing nail is welded, the second drive unit 5 drives the pressing nail part 4 to move away from the welding port 21, so as to separate the pressing nail part 4 from the sealing nail.

[0023] In summary, by setting the first drive unit 3 to drive the clamping member 2 to move and clamp the battery, the battery can be fixed. By setting the second drive unit 5 on the clamping member 2 to drive the pressing member 4 to move towards the welding joint 21, the pressing member 4 abuts against the sealing pin, thus pressing the sealing pin against the battery filling port, ensuring that there is no gap between the sealing pin and the battery, avoiding poor welding. Furthermore, the pressing member 4 and the drive end of the second drive unit 5 are rotatable, which can prevent the pressing member 4 from being excessively pressed down and damaging the sealing pin. At the same time, through the above structural design, only one second drive unit 5 is needed to achieve the pressing member 4 abutting the sealing pin, which simplifies the structure, effectively reduces the space occupied, and has lower production costs and higher economic benefits.

[0024] Example 2: This embodiment provides a battery filling port sealing auxiliary device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] Furthermore, the angle at which the pressure pin 4 can rotate is 4-10°.

[0026] By setting the rotatable angle of the pressure pin 4 to 4-10°, it can be achieved in two ways: firstly, the rotation range of the pressure pin 4 is too small, which would not provide sufficient buffering and would cause the pressure pin 4 to press down excessively, damaging the sealing pin and affecting the welding quality of the sealing pin; secondly, it can also prevent the rotation range of the pressure pin 4 from being too large, which would cause the pressure output by the second drive unit 5 to be unstablely transmitted to the sealing pin through the pressure pin 4, resulting in the pressure pin 4 failing to press the sealing pin tightly onto the injection port, thus affecting the welding quality of the sealing pin.

[0027] Example 3: This embodiment provides a battery filling port sealing auxiliary device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0028] Furthermore, the driving end of the second driving unit 5 is provided with a fixed base 6, and the fixed base 6 is provided with a positioning member 61 and a limiting member 62. The pressing member 4 is provided with a rotating positioning hole 42 that is rotatably connected to the positioning member 61, and a swing limiting hole 43 that cooperates with the limiting member 62.

[0029] In this technical solution, the pressing member 4 has an "L" shaped structure. The pressing member 4 includes a mounting part 41, which is provided with a rotation positioning hole 42 and a swing limiting hole 43. The fixing base 6 is equipped with a positioning member 61 and a limiting member 62. The mounting part 41 of the pressing member 4 is rotatably connected to the positioning member 61 through the rotation positioning hole 42, thereby realizing the rotatable setting of the pressing member 4 on the driving end of the second driving unit 5. The limiting member 62 is located in the swing limiting hole 43 and is used to abut against the inner wall of the swing limiting hole 43 to limit the rotation angle of the pressing member 4.

[0030] Furthermore, the nail-pressing mechanism also includes a reset member 7, which is disposed between the fixed base 6 and the nail-pressing member 4 for the rotational reset of the nail-pressing member 4. The reset member 7 can be a torsion spring, which is sleeved on the positioning member 61 and connected at both ends to the fixed base 6 and the nail-pressing member 4 respectively. When the second drive unit 5 drives the nail-pressing member 4 to abut against the sealing nail and causes the nail-pressing member 4 to rotate, the torsion spring deforms and generates a restoring force. When the second drive unit 5 drives the nail-pressing member 4 away from the sealing nail, the force of the torsion spring will drive the nail-pressing member 4 to rotate and reset. When the limiting member 62 abuts against the inner wall on the other side of the swing limiting hole 43, the nail-pressing member 4 stops rotating and returns to its initial state.

[0031] Example 4: This embodiment provides a battery filling port sealing auxiliary device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] Furthermore, the end face of the clamping member 2 used to clamp the battery is also provided with a receiving groove 22 extending to the welding port 21. The receiving groove 22 is used to allow the clamping member 4 to move toward the welding port 21.

[0033] In this technical solution, after the clamping member 2 presses against the end face of the battery to ensure stable fixation of the battery, the welding joint 21 of the clamping member 2 is connected to the battery liquid injection port. By setting a receiving groove 22 on the clamping member 2 that is connected to the welding joint 21, the pressing nail member 4 moves in the receiving groove 22, so that the end of the pressing nail member 4 can extend into the welding joint 21 and press against the sealing nail on the liquid injection port. This ensures that the battery as a whole is pressed and stable, while the sealing nail can also be pressed against the liquid injection port, ensuring that there is no gap between the sealing nail and the battery, which is highly practical.

[0034] Furthermore, the second drive unit 5 drives the pressing pin 4 to move in an inclined direction within the receiving groove 22. The receiving groove 22 is disposed on the end face of the pressing member 2 in an inclined downward direction. By driving the pressing pin 4 to move along the receiving groove 22 in an inclined downward direction through the second drive unit 5, the end of the pressing pin 4 can provide a greater force when pressing against the sealing pin, thereby pressing the sealing pin against the battery's electrolyte inlet.

[0035] Example 5: This embodiment provides a battery filling port sealing auxiliary device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0036] Furthermore, the clamping component 2 includes: The mounting bracket 23 is movable along the first direction Z and is mounted on the frame 1; The pressure plate 24 is detachably mounted on the fixing frame 23 and is used to abut against the battery end cover.

[0037] In this technical solution, the fixing frame 23 is connected to the output end of the first drive unit 3. The first drive unit 3 controls the fixing frame 23 to move along the first direction Z, thereby driving the pressure plate 24 to move along the first direction Z to press and fix the battery. The pressure plate 24 and the fixing frame 23 are connected by fasteners, which facilitates the disassembly and replacement of pressure plates 24 with different shapes, thus making the tooling suitable for pressing nails on different types of batteries.

[0038] Furthermore, the pressure plate 24 includes a clearance groove 25, which is disposed on the surface of the pressure plate 24 used for pressing. The clearance groove 25 on the pressure plate 24 is adapted to the protruding terminal post structure at the end of the battery. Through this structural design, the contact area between the pressure plate 24 and the end of the battery can be increased, the pressing effect can be improved, and the stability of the battery can be enhanced during welding operations.

[0039] Example 6: This embodiment provides a battery filling port sealing auxiliary device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0040] Furthermore, the clamping mechanism also includes: The slider guide module 8 and the fixing frame 23 are connected to the frame 1 through the slider guide module 8.

[0041] In this technical solution, by installing a guide rail arranged along the first direction Z on the frame 1, the slider is movably arranged on the guide rail, and the fixed frame 23 is fixedly connected to the slider, so as to realize the stable movement of the fixed frame 23 in the first direction Z, and prevent the fixed frame 23 from shifting during the movement, which would cause the pressure plate 24 to crush the battery.

[0042] Example 7: This embodiment provides a battery filling port sealing auxiliary device, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0043] Furthermore, the clamping mechanism also includes: Stop 26 is mounted on the fixed frame 23 and is used to limit the movement of the fixed frame 23 along the first direction Z. Buffer 27 is mounted on the fixed frame 23 and is used to abut against the frame 1 in the first direction Z.

[0044] In this technical solution, the stop 26 can be a stop bolt, which is threaded onto the fixing frame 23. When the pressure plate 24 on the fixing frame 23 abuts against the end of the battery, the stop bolt also abuts against the frame 1, thus limiting the fixing frame 23 and preventing the pressure plate 24 from damaging the battery. Furthermore, by rotating and adjusting the stop bolt, the amount of the stop bolt extending from the fixing frame 23 towards the frame 1 can be changed, thereby adapting to the nailing operation of batteries of different heights.

[0045] The buffer 27 can be a hydraulic buffer. The buffer 27 is mounted on the fixed frame 23 and positioned towards the side closest to the frame 1. When the first drive unit 3 controls the fixed frame 23 to move and cause the pressure plate 24 to press the battery, the hydraulic buffer first abuts against the frame 1, buffering the movement of the fixed frame 23. Then, the stop 26 abuts against the frame 1, limiting the movement of the fixed frame 23. This structural design reduces the impact force when the fixed frame 23 moves downward along the first direction Z, preventing strong collisions and vibrations when the stop 26 abuts against the frame 1 and when the pressure plate 24 abuts against the battery, effectively reducing the risk of damage to the battery and various components of the tooling.

[0046] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A battery filling port sealing auxiliary device, comprising a frame (1), characterized in that, include: The clamping mechanism includes a clamping member (2) and a first driving unit (3) for driving the clamping member (2) to move along a first direction (Z). The first driving unit (3) is disposed on the frame (1). The clamping member (2) is provided with a weld joint (21) that penetrates the clamping member (2). The nailing mechanism includes a nailing member (4) and a second drive unit (5) located on the end face of the clamping member (2) facing the side of the battery to be welded. The second drive unit (5) drives the nailing member (4) to move toward the welding joint (21). The pressure pin (4) is rotatably mounted on the drive end of the second drive unit (5).

2. The battery filling port sealing auxiliary device according to claim 1, characterized in that, The angle at which the pressure pin (4) can rotate is 4-10°.

3. The battery filling port sealing auxiliary device according to claim 1, characterized in that, The second drive unit (5) has a fixed base (6) at its drive end. The fixed base (6) has a positioning member (61) and a limiting member (62). The pressing pin (4) has a rotating positioning hole (42) that is rotatably connected to the positioning member (61) and a swing limiting hole (43) that cooperates with the limiting member (62).

4. The battery filling port sealing auxiliary device according to claim 3, characterized in that, The nailing mechanism also includes a reset member (7), which is disposed between the fixed base (6) and the nailing member (4) for the rotational reset of the nailing member (4).

5. The battery filling port sealing auxiliary device according to claim 1, characterized in that, The clamping member (2) is provided with a receiving groove (22) extending to the welding port (21) on the end face of the battery. The receiving groove (22) is used to allow the clamping member (4) to move toward the welding port (21).

6. The battery filling port sealing auxiliary device according to claim 5, characterized in that, The second drive unit (5) drives the pressing pin (4) to move in the inclined direction within the receiving groove (22).

7. The battery filling port sealing auxiliary device according to claim 1, characterized in that, The clamping element (2) includes: A mounting bracket (23) is movably mounted on the frame (1) in a first direction (Z); A pressure plate (24) is detachably mounted on a fixing frame (23) for pressing the end cap of the battery to be welded.

8. The battery filling port sealing auxiliary device according to claim 7, characterized in that, The pressure plate (24) includes; The clearance groove (25) is provided on the side of the cover plate (24) used for pressing.

9. The battery filling port sealing auxiliary device according to claim 7, characterized in that, The clamping mechanism further includes: The slider guide module (8) is connected to the frame (1) via the fixed frame (23).

10. The battery filling port sealing auxiliary device according to claim 7, characterized in that, The clamping mechanism further includes: A stop (26) is mounted on a fixed frame (23) to limit the movement of the fixed frame (23) along a first direction (Z); A buffer (27) is mounted on a fixed frame (23) for abutting against the frame (1) in the first direction (Z).

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