A tool for welding a battery cover plate pole

Abstract

The application relates to the technical field of welding tooling, in particular to a tool for welding a battery cover plate and a pole. The tool comprises a base, a connecting frame fixedly connected to the base, a fixing frame rotationally connected to the connecting frame, a second motor symmetrically arranged on the base, an adjusting frame fixedly connected to an output shaft of the second motor, an electric lifting frame arranged on the adjusting frame, a guide rod arranged on the electric lifting frame, an extrusion rod slidingly connected to the guide rod, a spring fixedly connected between the guide rod and the extrusion rod, a supporting shell slidingly connected to the extrusion rod, rotation frames circumferentially arranged on the supporting shell, a threaded rod arranged on the rotation frame, and a positioning frame fixedly connected to the threaded rod. Before the battery cover plate and the pole are pressed, the rotation frame drives the positioning frame to move, so that the positioning frame simultaneously contacts adjacent positions of the pole and the cover plate mounting groove, the relative positions of the pole and the cover plate are adjusted, and the center of the pole is aligned with the center of the cover plate mounting groove.

Description

Technical Field

[0001] This invention relates to the field of welding tooling technology, and in particular to a tooling for welding battery cover plate terminals. Background Technology

[0002] The battery cover consists of a cover plate, terminals, and a sealing ring. The sealing ring is located between the terminals and the cover plate to seal the two. During the assembly of the battery cover, the sealing ring must first be placed in place, then the terminals are placed into the corresponding mounting slots on the cover plate body. After that, welding fixtures are used to press the terminals and the cover plate body together to ensure that the adjacent contact areas of the two are tightly fitted. Finally, welding is performed using a welding device.

[0003] To facilitate the placement of the pole into the mounting slot of the cover plate body, the diameter of the mounting slot in the existing design is usually slightly larger than the diameter of the pole, forming a certain assembly gap. The existence of this assembly gap makes the pole prone to positional displacement due to vibration and inertia during subsequent transportation or handling, resulting in misalignment between the pole and the cover plate body.

[0004] However, existing welding fixtures lack effective guiding or positioning mechanisms, and cannot fully correct the position of the offset pole during the pressing process. This results in the offset pole and the cover plate body not being completely concentric or aligned in the welding area, which in turn causes uneven compression of the sealing ring in the circumferential direction. This unevenness makes it easier for the high temperature generated during the welding process to be transferred to the sealing ring through the tightly contacted area, causing local melting and damage to the sealing ring, and ultimately destroying the sealing performance between the pole and the cover plate body. Summary of the Invention

[0005] This invention provides a tooling for welding battery cover plate terminals, which solves the problems mentioned in the background above.

[0006] The technical implementation of the present invention is as follows: a tooling for welding battery cover plate terminals includes a base, a connecting frame fixedly connected to the base, a first motor fixedly connected inside the base, the output shaft of the first motor passing through the connecting frame, a fixed frame rotatably connected to the connecting frame and fixedly connected to the output shaft of the first motor, a second motor symmetrically distributed fixedly connected to the base, an adjusting frame rotatably connected to the connecting frame and fixedly connected to the output shaft of the second motor, an electric lifting frame mounted on the adjusting frame, a guide rod provided on the electric lifting frame, a pressing rod slidably connected to the guide rod and fixedly connected to the two with a spring, a support shell slidably connected to the pressing rod, a circumferentially distributed rotating frame hinged to the support shell, a threaded rod provided on the rotating frame, a positioning frame fixedly connected to the threaded rod, the positioning frame being used to adjust the position of the cover plate and terminal plate, an adjusting component circumferentially distributed and the same number as the adjacent rotating frame being provided on the guide rod, the adjusting component being used to drive the adjacent rotating frame to rotate, and a fixing component being provided on the fixed frame for limiting the movement distance of the rotating frame.

[0007] To further explain, the positioning frame is provided with a first guide surface and a second guide surface. The first guide surface is located on the side of the positioning frame away from the support shell and is used to push the cover plate to move. The second guide surface is located on the side of the positioning frame close to the support shell and is used to push the pole to move.

[0008] Further explanation: the adjusting assembly includes a pressing plate, which is fixedly connected to the adjacent guide rod. The pressing plate has a rectangular hole. A transmission plate is fixedly connected to the upper part of the rotating frame. The upper part of the transmission plate is inclined towards the axis of the adjacent pressing rod. The upper part of the transmission plate is located in the adjacent rectangular hole. The pressing plate is used to push the transmission plate to rotate. A torsion spring is fixedly connected between the rotating frame and the adjacent support shell. The pressing plate is slidably connected to the adjacent support shell.

[0009] To further explain, the lower part of the extrusion plate contacts the adjacent transmission plate to restrict the rotation of the transmission plate.

[0010] To further explain, the fixing component includes support rings arranged in a rectangular shape, all of which are fixed to the fixing frame. The support rings are used to support the cover plate. A support block is fixed to the lower part of the rotating frame. The support block is located above the adjacent support rings and is used to limit the distance that the adjacent rotating frames can move.

[0011] To further explain, the positioning frame is provided with circumferentially distributed guide balls on one side near the axis of the adjacent guide rod.

[0012] To further explain, the rotating frame is threadedly connected to the adjacent threaded rod, and the axis of the threaded rod deflects from top to bottom toward the axis of the extrusion rod.

[0013] Further explanation: It also includes symmetrically distributed limiting components, which are respectively disposed on adjacent electric lifting frames. The limiting components are used to limit the position of the electric lifting frame and the adjacent guide rod. The limiting component includes a circular plate, which is rotatably connected to the guide rod. A tension spring is fixed between the circular plate and the adjacent electric lifting frame. A circumferentially distributed spline is fixed on the guide rod, and the spline slides along the adjacent electric lifting frame. The guide rod is slidably and rotatably connected to the electric lifting frame.

[0014] To further explain, the elastic coefficient of the tension spring is greater than that of the spring.

[0015] Further explanation: The system also includes a positioning component, which is mounted on the base. This positioning component is used to limit the position of the sealing ring between the battery cover and the terminal post. The positioning component includes an electric push rod, which is fixedly connected to the base. The telescopic end of the electric push rod is slidably connected to the connecting frame. A support plate is fixedly connected to the telescopic end of the electric push rod, and the support plate is used to support the fixing frame. Symmetrically distributed positioning rods are fixedly connected to the support plate. The fixing frame has rectangularly distributed through holes for the positioning rods to pass through, and the positioning rods are used to limit the position of the sealing ring.

[0016] The advantages and positive effects of this invention compared with the prior art are as follows: 1. Before pressing the battery cover and the terminal post, this invention uses a rotating frame to drive the positioning frame to move, so that the positioning frame simultaneously contacts the adjacent positions of the terminal post and the cover plate mounting groove, thereby adjusting the relative position of the terminal post and the cover plate, aligning the center of the terminal post with the center of the cover plate mounting groove, thereby reducing the positional deviation between the terminal post and the cover plate mounting groove, ensuring the sealing performance after the sealing ring is installed, and improving the quality of welding the terminal post and the cover plate.

[0017] 2. In the process of pressing the battery cover and the terminal post, the present invention fixes the transmission plate by pressing the extrusion plate to keep the position of the rotating frame and the positioning frame stable. At the same time, the terminal post is guided by the guide ball to ensure that the position of the terminal post will not shift due to the deformation of the sealing ring during the pressing process, thereby further improving the welding quality of the cover and the terminal post.

[0018] 3. The present invention uses a support plate to move the positioning rod upward, so that the positioning rod enters the sealing ring, adjusts and fixes the position of the sealing ring, thereby reducing the probability of misalignment of the sealing ring caused by the movement of the pole during the adjustment of the pole position. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the first motor, the fixing frame, and the second motor of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the electric push rod, support plate, and positioning rod of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the adjusting frame, electric lifting frame, and guide rod of the present invention;

[0023] Figure 5 This is a three-dimensional structural diagram of the circular plate, tension spring, and spline of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the extrusion plate, transmission plate, and torsion spring of the present invention;

[0025] Figure 7 This is a three-dimensional structural cross-sectional view of the rotating frame, positioning frame, and transmission plate of the present invention;

[0026] Figure 8 This is an exploded three-dimensional view of the support shell, support ring, and tension spring of the present invention.

[0027] The components in the attached diagram are labeled as follows: 1-Base, 2-Connecting frame, 3-First motor, 4-Fixed frame, 5-Second motor, 6-Adjusting frame, 7-Electric lifting frame, 8-Guide rod, 9-Extrusion rod, 10-Spring, 11-Support shell, 12-Rotating frame, 13-Threaded rod, 14-Positioning frame, 141-First guide surface, 142-Second guide surface, 15-Extrusion plate, 151-Rectangular hole, 16-Transmission plate, 17-Torsion spring, 18-Support ring, 181-Support block, 19-Guide ball, 20-Circular plate, 21-Tension spring, 22-Spline, 23-Electric push rod, 24-Support plate, 25-Positioning rod. Detailed Implementation

[0028] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0029] Example 1: A tooling for welding battery cover plate terminals, such as... Figures 1-8As shown, the device includes a base 1, a connecting frame 2 fixedly connected to the base 1, a first motor 3 fixedly connected inside the base 1, the output shaft of the first motor 3 passing through the connecting frame 2, a fixed frame 4 rotatably connected to the connecting frame 2 and fixedly connected to the output shaft of the first motor 3, a second motor 5 symmetrically distributed fixedly connected to the base 1, an adjusting frame 6 rotatably connected to the connecting frame 2 and fixedly connected to the output shaft of the second motor 5, an electric lifting frame 7 mounted on the adjusting frame 6, a guide rod 8 provided on the electric lifting frame 7, a pressing rod 9 slidably connected to the guide rod 8 and fixedly connected to the two with a spring 10, a support shell 11 slidably connected to the pressing rod 9, a circumferentially distributed rotating frame 12 hinged to the support shell 11, a threaded rod 13 provided on the rotating frame 12, a positioning frame 14 fixedly connected to the threaded rod 13, the positioning frame 14 being used to adjust the position of the cover plate and the pole post, an adjusting component circumferentially distributed on the guide rod 8 and the same number as the adjacent rotating frame 12 being provided, the adjusting component being used to drive the adjacent rotating frame 12 to rotate, and a fixing component 4 being provided on the fixed frame 4 to limit the movement distance of the rotating frame 12.

[0030] Furthermore, such as Figure 6 and Figure 7 As shown, the positioning frame 14 is provided with a first guide surface 141 and a second guide surface 142. The first guide surface 141 is located on the side of the positioning frame 14 away from the support shell 11 and is used to push the cover plate to move. The second guide surface 142 is located on the side of the positioning frame 14 close to the support shell 11 and is used to push the pole column to move.

[0031] The above solution provides a way to adjust the position of the pole and cover plate before welding, thereby improving welding accuracy and reducing the probability of damage to the sealing ring. The connecting frame 2 is located in the middle of the upper side of the base 1, the first motor 3 is located on the right side of the base 1, and the fixing frame 4 is located on the right side of the connecting frame 2 and rotates. The fixing frame 4 is provided with two cover plate fixing positions, which are symmetrically distributed. This allows the operator to place a new set of cover plates and poles on the other side of the fixing frame 4 simultaneously while welding a set of cover plates and poles. The first motor 3 is used to drive the fixing frame 4 to rotate and adjust the position of the two cover plate fixing positions on the fixing frame 4. There are two second motors 5, both located on the left side of the base 1, and an electric lifting frame 7. It is L-shaped, with the upper right part located above the adjacent pole mounting groove on the cover plate. The electric lifting frame 7 is an existing device, and its specific structure will not be described in detail. The electric lifting frame 7 is used to drive the guide rod 8 to move up and down. In this embodiment, the electric lifting frame 7 and the adjacent guide rod 8 can be regarded as fixedly connected. The pressing rod 9 is located at the lower part of the guide rod 8. The lower part of the guide rod 8 is provided with a stepped surface to limit the distance of movement of the pressing rod 9. The lower end of the pressing rod 9 is provided with a pressure plate structure to increase the contact area between it and the pole. This pressure plate structure is used to provide uniform pressure to the pole. The spring 10 is used to push the pressing rod 9 to reset, and the spring 10 is always in a stored state.

[0032] When not in operation, the support shell 11 is located below the extrusion rod 9. The outer diameter of the support shell 11 is smaller than the diameter of the upper side of the pole post, so that the lower side of the support shell 11 is in complete contact with the pole post. In this paper, there are four rotating frames 12 on the same support shell 11. The number of rotating frames 12 can be adjusted according to the actual situation during use. When not in operation, the upper part of the rotating frame 12 is in a horizontal state, and the upper part of the rotating frame 12 is in contact with the upper side of the support shell 11, so as to increase the stability of the position of the rotating frame 12. In this embodiment, the rotating frame 12 and the threaded rod 13 are fixedly connected, and there is no relative movement between the rotating frame 12 and the threaded rod 13. The positioning frame 14 is U-shaped with the opening facing downward. Taking the shape of the right positioning frame 14 as an example, the right part of the positioning frame 14... The lower side of the positioning frame 14 is higher than the lower side of its left side. This is used to ensure that the positioning frame 14 contacts the terminal post and then contacts the mounting groove on the cover plate during the downward movement of the positioning frame 14. The positioning frame 14 is used to adjust the position of the battery cover plate and the terminal post. A guide rod 8 has four adjustment components. During the downward movement of the positioning frame 14, when the first guide surface 141 contacts the mounting groove on the cover plate, the first guide surface 141 presses the mounting groove to adjust the position of the cover plate in the fixed position on the fixing frame 4, so that the center of the mounting groove on the cover plate is aligned with the center of the guide rod 8, ensuring that the position of the cover plate is uniform. When the second guide surface 142 contacts the terminal post, the second guide surface 142 pushes the terminal post to move, so that the center of the terminal post is aligned with the center of the guide rod 8.

[0033] Furthermore, such as Figures 5-8 As shown, the adjustment assembly includes a pressing plate 15, which is fixedly connected to the adjacent guide rod 8. The pressing plate 15 is provided with a rectangular hole 151. A transmission plate 16 is fixedly connected to the upper part of the rotating frame 12. The upper part of the transmission plate 16 is inclined towards the axial direction of the adjacent pressing rod 9. The upper part of the transmission plate 16 is located in the adjacent rectangular hole 151. The pressing plate 15 is used to push the transmission plate 16 to rotate. A torsion spring 17 is fixedly connected between the rotating frame 12 and the adjacent support shell 11. The pressing plate 15 is slidably connected to the adjacent support shell 11.

[0034] Furthermore, such as Figures 6-8 As shown, the lower part of the extrusion plate 15 contacts the adjacent transmission plate 16 to restrict the rotation of the transmission plate 16.

[0035] The above solution provides a way to ensure that the rotating frame 12 no longer obstructs the welding position between the pole post and the cover plate after the pole post position is adjusted; the extrusion plate 15 is located at the lower end of the guide rod 8, and the support shell 11 is provided with four vertical slots. When not in operation, the lower part of the extrusion plate 15 is located in the adjacent vertical slots on the support shell 11, and the transmission plate 16 is located on the left side of the rotating frame 12. Figure 7(For example), the transmission plate 16 consists of a vertical plate and an inclined plate. The inclined plate of the transmission plate 16 tilts upwards to the left and is located within the rectangular hole 151. When not in operation, the lower part of the pressing plate 15 contacts the transmission plate 16. The pressing plate 15 fixes the position of the rotating frame 12 by restricting the rotation of the transmission plate 16. When the pressing plate 15 moves downwards, it presses the inclined surface of the transmission plate 16, causing the transmission plate 16 to drive the rotating frame 12 to rotate 90°, thereby causing the rotating frame 12 to drive the parts on it to rotate at the weld joint between the cover plate and the pole post. To facilitate clearance, the support shell 11 is provided with a clearance groove, which is used to clear the position of the inclined plate on the transmission plate 16. The torsion spring 17 is used to drive the rotating frame 12 to rotate and reset, and the torsion spring 17 is always in a charged state. The lower part of the pressing plate 15 contacts the transmission plate 16 to limit the adjacent transmission plate 16 during the pressing of the cover plate and the pole post, so that the position of the rotating frame 12 will not change. In turn, the positioning frame 14 always positions and guides the pole post during the pressing of the pole post and the cover plate, ensuring that the position of the pole post will not be deviated.

[0036] Furthermore, such as Figures 4-8 As shown, the fixing assembly includes support rings 18 arranged in a rectangular shape. All support rings 18 are fixed to the fixing frame 4. The support rings 18 are used to support the cover plate. The lower part of the rotating frame 12 is fixed with a support block 181. The support block 181 is located above the adjacent support rings 18. The support block 181 is used to limit the distance of movement of the adjacent rotating frame 12.

[0037] Furthermore, such as Figures 6-8 As shown, guide balls 19 are arranged circumferentially on the side of the positioning frame 14 near the axis of the adjacent guide rod 8.

[0038] The above solution provides a method for supporting the rotating frame 12 during the downward movement of the pole post, thereby stabilizing the position of the positioning frame 14. There are four support rings 18, all of which are located on the upper side of the fixed frame 4. The inner diameter of the support ring 18 is larger than the outer diameter of the mounting groove on the cover plate. The support rings 18 are used to support the area adjacent to the mounting groove on the cover plate. When not in operation, the support block 181 is parallel to the horizontal plane and is located above the adjacent support ring 18. After the rotating frame 12 drives the support block 181 to move downward and contact the cover plate, the support rings 18 support the cover plate and the support block 181. The guide ball 19 is located inside the adjacent positioning frame 14. The guide ball 19 is used to separate the pole post and the positioning frame 14. During the downward movement of the pole post by the extrusion rod 9, the pole post drives the guide ball 19 to rotate, reducing the friction between the pole post and the positioning frame 14 when it moves downward.

[0039] Workflow: The following description uses the leftward tilt of the cover plate and the rightward offset of the terminal post as examples. When using this tooling to weld the battery cover plate and the terminal post, the operator first assembles the cover plate, sealing ring, and terminal post using the existing device. Then, the assembled "battery cover plate" is placed in the right fixed position on the fixed frame 4. The two mounting slots of the cover plate are located in the adjacent support rings 18. After the "battery cover plate" is placed, the operator starts the first motor 3. The output shaft of the first motor 3 drives the fixed frame 4 to rotate. When the fixed frame 4 drives the "battery cover plate" to rotate 180°, the first motor 3 automatically shuts off. At this time, the "battery cover plate" moves to the bottom of the two electric lifting frames 7. The operator starts the electric lifting frames 7. The electric lifting frames 7 drive the guide rod 8 to move downward. The guide rod 8 drives the pressing rod 9 and other parts on it to move downward. The pressing rod 9 drives the support shell 11 to move synchronously closer to the corresponding terminal post.

[0040] During the downward movement of the aforementioned support shell 11, the support shell 11 drives the rotating frame 12 to move downward. The rotating frame 12, through the threaded rod 13, drives the positioning frame 14 to move downward closer to the "battery cover". At the same time, the rotating frame 12 drives the support block 181 on it to move downward. When the second guide surface 142 on the right positioning frame 14 contacts the terminal post, the second guide surface 142 pushes the terminal post to move to the left to adjust the position of the terminal post. Until the second guide surface 142 separates from the terminal post, the positioning frame 14 completes the adjustment of the position of the terminal post. At this time, all four positioning frames 14 are in contact with the terminal post. As the positioning frame 14 moves downward, the guide ball 19 contacts the terminal post. The pole drives the guide ball 19 to rotate and reduces the friction between the positioning frame 14 and the pole when they move relative to each other. As the positioning frame 14 continues to move downward, when the first guide surface 141 on the right side contacts the mounting groove of the cover plate, the first guide surface 141 adjusts the position of the cover plate by pressing the mounting groove of the cover plate, so that the cover plate is in the designated position. After all four first guide surfaces 141 are in contact with the mounting groove of the cover plate, the position adjustment of the cover plate is completed, and the positioning frame 14 stops moving. Since the lower part of the pressing plate 15 is in contact with the transmission plate 16, the support shell 11 stops moving, so the rotating frame 12 stops moving and cannot rotate. At this time, the support shell 11 and the pressing rod 9 are in contact with the upper side of the pole.

[0041] After the support shell 11 stops moving, the guide rod 8 drives the pressing rod 9 to continue moving downward through the spring 10. This causes the pressing rod 9 to push the electrode post downward relative to the support shell 11 and closer to the battery cover. The lower part of the pressing plate 15 gradually separates from the transmission plate 16. When the lower side of the electrode post contacts the battery cover, the two are pressed together, and the pressing rod 9 stops moving. At this time, the lower part of the pressing plate 15 separates from the transmission plate 16 and is released from its limit. The upper side of the rectangular hole 151 contacts the transmission plate 16. As the guide rod 8 continues to move downward, the pressing plate 15 presses the transmission plate 16, and the transmission plate 16 drives the adjacent rotating frame 12 to rotate counterclockwise. Figure 6(Viewed from front to back) and further store force in the torsion spring 17, the rotating frame 12 drives the threaded rod 13 and the support block 181 to rotate synchronously. The threaded rod 13 drives the positioning frame 14 to rotate synchronously away from the pole post. During this process, as the rotating frame 12 rotates, the support block 181 moves away from the area of ​​the support ring 18 below its initial position. The rotating frame 12 and its support block 181 no longer provide the initial support and positioning function for the support shell 11. The rotating frame 12 no longer supports the support shell 11, and the support shell 11 is subjected to gravity and the extrusion force of the extrusion plate 15. The lower part moves its upper parts downward until the support shell 11 contacts the upper side of the pole post. Then the support shell 11 stops moving downward. During this process, the rotating frame 12 continues to rotate. As the guide rod 8 continues to move downward, the extrusion plate 15 continues to extrude the transmission plate 16 until the transmission plate 16 rotates 90° and can no longer rotate. The extrusion plate 15 stops moving downward, the guide rod 8 and its upper parts stop moving, the electric lifting frame 7 stops moving, and the rotating frame 12 stops moving, allowing its upper parts to avoid the welding point of the cover plate and the pole post.

[0042] Workers activate the existing welding module to weld the cover plate and the terminal post. During the welding process, when it is necessary to avoid the welding module, the second motor 5 is activated. The output shaft of the second motor 5 drives the electric lifting frame 7 to rotate through the adjusting frame 6. The electric lifting frame 7 drives the parts on it to rotate to avoid the welding module. After the cover plate and the terminal post are welded, the second motor 5 drives the adjusting frame 6 and its parts to rotate in the opposite direction to reset. The electric lifting frame 7 drives its parts to move upward to reset. The spring 10 pushes the pressing rod 9 to reset. The pressing force of the pressing plate 15 on the transmission plate 16 is reduced. The torsion spring 17 drives the rotating frame 12 to rotate in the opposite direction to reset. Afterwards, the workers take out the welded "battery cover plate" and repeat the above process to fix other "battery cover plates".

[0043] Example 2: Based on Example 1, as follows Figures 5-8 As shown, the rotating frame 12 is threadedly connected to the adjacent threaded rod 13, and the axis of the threaded rod 13 deflects from top to bottom toward the axis of the pressing rod 9.

[0044] In this embodiment, the rotating frame 12 is threadedly connected to the adjacent threaded rod 13. The operator can adjust the position of the positioning frame 14 by rotating the threaded rod 13, so that the distance between the positioning frame 14 and the adjacent rotating frame 12 increases as the distance between the positioning frame 14 and the axis of the adjacent guide rod 8 decreases, thereby positioning poles of different sizes and shapes. When rotating the threaded rod 13, the operator rotates the threaded rod 13 a full circle to adjust the position of the positioning frame 14, ensuring that the orientation of the positioning frame 14 does not change.

[0045] Example 3: Based on Example 2, such as Figures 4-6 and Figure 8As shown, it also includes symmetrically distributed limiting components, which are respectively set on adjacent electric lifting frames 7. The limiting components are used to limit the position of electric lifting frames 7 and adjacent guide rods 8. The limiting components include a circular plate 20, which is rotatably connected to the guide rod 8. A tension spring 21 is fixed between the circular plate 20 and the adjacent electric lifting frame 7. A circumferentially distributed spline 22 is fixed on the guide rod 8. The spline 22 slides along the adjacent electric lifting frame 7. The guide rod 8 is slidably and rotatably connected to the electric lifting frame 7.

[0046] Furthermore, such as Figure 6 and Figure 8 As shown, the spring constant of tension spring 21 is greater than that of spring 10.

[0047] The above solution provides a way to separate the electric lifting frame 7 from the guide rod 8 when adjusting the position of the electric lifting frame 7 to avoid the movement path of the existing welding module, thereby increasing the positional stability of the guide rod 8; the circular plate 20 is located at the upper end of the guide rod 8, and a circular ring is provided in the middle of the guide rod 8. Circumferentially distributed splines 22 are located between the circular ring of the guide rod 8 and the circular plate 20. When not in operation, the splines 22 are located inside the electric lifting frame 7, and the distance between the lower side of the splines 22 and the circular ring on the guide rod 8 is not less than the thickness of the right side of the electric lifting frame 7. After the electric lifting frame 7 moves downward and separates from the spline 22, the electric lifting frame 7 contacts the ring on the guide rod 8 and stops moving. At this time, the electric lifting frame 7 and the guide rod 8 can rotate relative to each other. The lower part of the spline 22 is chamfered so that when the electric lifting frame 7 moves upward, the spline 22 can re-enter the electric lifting frame 7. The ratio of the elastic coefficient of the tension spring 21 to that of the spring 10 is used to make relative movement occur between the guide rod 8 and the pressing rod 9 first, so as to ensure that the electric lifting frame 7 and the guide rod 8 will not rotate relative to each other when pressing the pole and the cover plate.

[0048] Workflow: During the downward movement of the electric lifting frame 7, the electric lifting frame 7 drives the circular plate 20 downward via the tension spring 21. The circular plate 20 drives the guide rod 8 downward, causing the guide rod 8 to drive the pressing rod 9 downward. The pressing rod 9 drives the support shell 11 downward, causing the positioning frame 14 to move downward. The above process is repeated to adjust the position of the cover plate and the pole column until the support block 181 contacts the cover plate. Then, the support shell 11 stops moving, and the guide rod 8 continues to move downward, driving the pressing rod 9 downward via the spring 10 to press the cover plate and the pole column together. After the two are pressed together, the pressing rod 9 stops moving downward. The guide rod 8 continues to drive the parts on it downward and compress the spring 10. The pressing plate 15 presses the transmission plate 16, causing the rotating frame 12 and the... The parts rotate until the transmission plate 16 can no longer rotate, then the guide rod 8 stops moving. The electric lifting frame 7 moves downward relative to the guide rod 8 along the spline 22 and stretches the tension spring 21. When the electric lifting frame 7 separates from the spline 22, the spline 22 releases its limit on the electric lifting frame 7, allowing the electric lifting frame 7 and the guide rod 8 to rotate relative to each other until the electric lifting frame 7 contacts the ring on the guide rod 8. Then the electric lifting frame 7 stops moving downward. The above process is repeated to weld the cover plate and the pole. When it is necessary to avoid the welding module, the adjusting frame 6 drives the electric lifting frame 7 to rotate. The electric lifting frame 7 drives the circular plate 20 to rotate only through the tension spring 21, thereby reducing the circumferential force applied by the electric lifting frame 7 to the guide rod 8 and increasing the stability of the pole position.

[0049] Example 4: Based on Example 3, such as Figure 3 As shown, it also includes a positioning component, which is disposed on the base 1. The positioning component is used to limit the position of the sealing ring between the battery cover and the terminal post. The positioning component includes an electric push rod 23, which is fixedly connected to the base 1. The telescopic end of the electric push rod 23 is slidably connected to the connecting frame 2. The telescopic end of the electric push rod 23 is fixedly connected to a support plate 24, which is used to support the fixing frame 4. The support plate 24 is fixedly connected to symmetrically distributed positioning rods 25. The fixing frame 4 is provided with rectangularly distributed through holes, which are used for the positioning rods 25 to pass through the fixing frame 4. The positioning rods 25 are used to limit the position of the sealing ring.

[0050] The above solution provides a way to adjust and fix the position of the sealing ring to prevent misalignment of the sealing ring when adjusting the position of the pole post. The electric push rod 23 is located on the left side of the upper side of the base 1. When not in operation, the telescopic end of the electric push rod 23 is in the retracted state. The telescopic end of the electric push rod 23 drives the support plate 24 to move upward, so that the upper side of the support plate 24 contacts the left side of the fixing frame 4, thereby supporting the stress area of ​​the fixing frame 4 and reducing the probability of deformation of the fixing frame 4. In this embodiment, the support plate 24 has two positioning rods 25 symmetrically distributed front and back. The upper end of the positioning rod 25 is provided with a chamfer to facilitate entering the hole of the sealing ring when the positioning rod 25 moves upward, adjusting the position of the sealing ring and ensuring that the sealing ring is located in the center of the pole post.

[0051] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A tooling for welding battery cover plate terminals, characterized in that, The utility model provides a kind of electric lifting device, including base (1), connecting frame (2) is fixed on the base (1), first motor (3) is fixed in the base (1), the output shaft of first motor (3) passes through connecting frame (2), connecting frame (2) is rotatably connected with the fixed frame (4) of the output shaft of first motor (3), second motor (5) is fixed on the base (1), the output shaft of second motor (5) is fixed with the adjusting frame (6) of the rotatable connection of connecting frame (2), electric lifting frame (7) is installed in adjusting frame (6), electric lifting frame (7) is provided with guide rod (8), guide rod (8) is slidably connected with extrusion rod (9), and spring (10) is fixed between the two, extrusion rod (9) is slidably connected with support shell (11), support shell (11) is hingedly connected with circumferentially distributed rotating frame (12), screw rod (13) is provided on rotating frame (12), positioning frame (14) is fixed with screw rod (13), positioning frame (14) is used to adjust the position of cover plate and pole, guide rod (8) is provided with circumferentially distributed and the same number of adjusting assembly with adjacent rotating frame (12), adjusting assembly is used to drive adjacent rotating frame (12) to rotate; First guide surface (141) and second guide surface (142) are provided on positioning frame (14), first guide surface (141) is located on the side of positioning frame (14) away from support shell (11), and first guide surface (141) is used to push cover plate to move, second guide surface (142) is located on the side of positioning frame (14) close to support shell (11), and second guide surface (142) is used to push pole to move; The adjusting assembly includes extrusion plate (15), extrusion plate (15) is fixed on adjacent guide rod (8), extrusion plate (15) is provided with rectangular hole (151), the upper portion of rotating frame (12) is fixed with transmission plate (16), the upper portion of transmission plate (16) is inclined to the axis direction of adjacent extrusion rod (9), the upper portion of transmission plate (16) is located in adjacent rectangular hole (151), extrusion plate (15) is used to push transmission plate (16) to rotate, torsional spring (17) is fixed between rotating frame (12) and adjacent support shell (11), extrusion plate (15) is slidably connected with adjacent support shell (11).

2. The tool for welding a battery cover plate pole according to claim 1, wherein The lower portion of extrusion plate (15) is in contact with adjacent transmission plate (16), for limiting the rotation of transmission plate (16).

3. The tool for welding a battery cover plate pole according to claim 1, wherein The fixing frame (4) is provided with a fixing assembly for limiting the moving distance of the rotating frame (12), the fixing assembly comprises support rings (18) in a rectangular distribution, all the support rings (18) are fixedly connected to the fixing frame (4), the support rings (18) are used for supporting the cover plate, the lower part of the rotating frame (12) is fixedly connected with a support block (181), the support block (181) is located above the adjacent support ring (18), and the support block (181) is used for limiting the moving distance of the adjacent rotating frame (12).

4. The tooling for welding a battery cover plate post according to claim 1, wherein, The positioning frame (14) is provided with circumferentially distributed guide balls (19) on one side close to the axis of the adjacent guide rod (8).

5. The tooling for welding a battery cover plate post according to claim 3, wherein, The rotating frame (12) is threadedly connected with the adjacent threaded rod (13), and the axis of the threaded rod (13) is deflected from top to bottom to the direction of the axis of the extruding rod (9).

6. The battery cover plate post welding tool according to claim 1, wherein, The limiting assembly is symmetrically distributed, and the limiting assembly is arranged on the adjacent electric lifting frame (7) in a symmetric distribution, the limiting assembly is used for limiting the position of the electric lifting frame (7) and the adjacent guide rod (8), the limiting assembly comprises a circular plate (20), the circular plate (20) is rotationally connected to the guide rod (8), a tension spring (21) is fixedly connected between the circular plate (20) and the adjacent electric lifting frame (7), the guide rod (8) is fixedly connected with circumferentially distributed splines (22), the splines (22) slide along the adjacent electric lifting frame (7), and the guide rod (8) is in sliding and rotational connection with the electric lifting frame (7).

7. A tool for welding a cover plate post for a battery as defined in claim 6, wherein The elastic coefficient of the tension spring (21) is greater than that of the spring (10).

8. The tool for welding a battery cover plate post according to claim 3, wherein The positioning assembly is arranged on the base (1), the positioning assembly is used for limiting the position of the sealing ring between the battery cover plate and the pole, the positioning assembly comprises an electric push rod (23), the electric push rod (23) is fixedly connected to the base (1), a telescopic end of the electric push rod (23) is in sliding connection with the connecting frame (2), the telescopic end of the electric push rod (23) is fixedly connected with a support plate (24), the support plate (24) is used for supporting the fixing frame (4), the support plate (24) is fixedly connected with symmetrically distributed positioning rods (25), the fixing frame (4) is provided with through holes in a rectangular distribution, the through holes are used for allowing the positioning rods (25) to pass through the fixing frame (4), and the positioning rods (25) are used for limiting the position of the sealing ring.

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