Tab positioning mechanism suitable for power battery welding
By designing the extreme ear positioning mechanism of the top and side push block components, the problems of inaccurate and tilted extreme ear positioning in the prior art are solved, and the precise positioning and welding quality of the extreme ear are improved.
Patent Information
- Application Number
- CN202420402130.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The existing extreme ear positioning mechanisms have problems such as inaccurate positioning, inclination and warping of the extreme ear during welding, resulting in a decrease in welding quality and a decrease in yield.
A pole ear positioning mechanism including a top push block assembly and a side push block assembly is designed. The top positioning block and the side positioning block are controlled by the top cylinder to achieve limiting and precise positioning of the pole ear on both sides.
Effectively prevent the tilt of the extreme ear, achieve accurate positioning of the extreme ear, and improve the yield rate of welding.
Smart Images
Figure CN222569696U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of power battery equipment, and in particular relates to a tab positioning mechanism suitable for power battery welding. Background Art
[0002] The tab is an important component of the power battery. By combining it with the battery body through ultrasonic or laser welding, it provides a reliable and convenient assembly method for subsequent further production and grouping. The mechanical positioning of the tab often requires high precision and good consistency, and the equipment manufacturers on the market generally provide positioning mechanisms to mechanically position the tab. The existing positioning mechanisms often have good compatibility, but in actual use, there are situations where the positioning is not accurate. For example, the existing entire platform for tab positioning relies on the top push block assembly located at the top to push the tab on the entire platform unilaterally, and achieve the final positioning by pushing. When the tab manipulator sends the tab to the position of the entire platform, the tab is still prone to tilting under the push of the top push block assembly, and this positioning method may also cause the tab to warp, which will affect the welding progress or cause welding quality problems, and reduce the welding yield rate. Utility Model Content
[0003] The purpose of the utility model is to provide a tab positioning mechanism suitable for power battery welding, so as to solve at least one of the above problems existing in the prior art.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A tab positioning mechanism suitable for power battery welding comprises a top push block assembly and an array platform, and also comprises a side push block assembly, wherein the side push block assembly and the top push block assembly are respectively located on two adjacent sides of the array platform; the top push block assembly comprises a top positioning block for pushing the tab from the top of the array platform and a top cylinder for driving the top positioning block to move toward or away from the array platform; the side push block assembly comprises a side positioning block for pushing the positive tab from the side of the array platform and a side cylinder for driving the side positioning block to move toward or away from the array platform, and the straight line where the side positioning block moves is perpendicular to the straight line where the top positioning block moves.
[0006] As a preferred technical solution in the utility model, the side positioning block is an L-shaped structure, one side of the side positioning block contacts the pole ear surface from the side of the entire platform, and the other end of the side positioning block clamps the pole ear on the entire platform.
[0007] As a preferred technical solution in the utility model, the side push block assembly also includes a side push block mounting sleeve, the piston rod of the side cylinder is connected to the side push block mounting sleeve, and the side positioning block is elastically installed on the side of the side push block mounting sleeve close to the entire platform.
[0008] As a preferred technical solution in the utility model, the side push block assembly also includes a side guide pin and a side spring. A side guide pin is installed on a side of the side positioning block close to the side push block mounting sleeve. A side mounting hole is opened on the side push block mounting sleeve. A side linear bearing is installed in the side mounting hole. The side guide pin is interactively connected to the side push block mounting sleeve through the side linear bearing. The side spring is sleeved on the side guide pin. One end of the side spring is abutted against the side positioning block, and the other end of the side spring is abutted against the side push block mounting sleeve or the side linear bearing.
[0009] As a preferred technical solution in the utility model, the top positioning block is an L-shaped structure, one side of the top positioning block is arranged parallel to the bottom of the entire platform, and the other end of the top positioning block contacts one side of the protruding part of the pole ear from the top of the entire platform.
[0010] As a preferred technical solution in the utility model, the top push block assembly also includes a top push block mounting sleeve, the piston rod of the top cylinder is connected to the top push block mounting sleeve, and the top positioning block is elastically installed on the side of the top push block mounting sleeve close to the entire array platform.
[0011] As a preferred technical solution in the utility model, the top push block assembly also includes a top guide pin and a top spring. A top guide pin is installed on one side of the top positioning block close to the top push block mounting sleeve. A top mounting hole is opened on the top push block mounting sleeve. A top linear bearing is installed in the top mounting hole. The top guide pin is interactively connected to the top push block mounting sleeve through the top linear bearing. The top spring is sleeved on the top guide pin. One end of the top spring abuts against the top positioning block, and the other end of the top spring abuts against the top push block mounting sleeve or the top linear bearing.
[0012] Beneficial effect: The utility model uses the top cylinder to control the top positioning block to push the pole ear on the top of the entire platform, and uses the side cylinder to control the side positioning block to push the pole ear on the side of the entire platform, and then limits the two sides of the pole ear together to prevent the pole ear from tilting, realize accurate positioning of the pole ear, and improve the welding yield rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a top view of the entire row platform of the utility model when no pole lug is placed;
[0014] Figure 2It is a three-dimensional schematic diagram of placing the pole ears on the entire array platform of the utility model.
[0015] In the figure: 1-top push block assembly; 11-top positioning block; 12-top cylinder; 13-top push block mounting sleeve; 14-top guide pin; 15-top spring; 2-alignment platform; 3-side push block assembly; 31-side positioning block; 32-side cylinder; 33-side push block mounting sleeve; 34-side guide pin; 35-side spring; 4-ear. DETAILED DESCRIPTION
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.
[0017] Example:
[0018] like Figure 1 and Figure 2 As shown, this embodiment provides a tab positioning mechanism suitable for power battery welding, including a top push block assembly 1 and an array platform 2, and also includes a side push block assembly 3, the side push block assembly 3 and the top push block assembly 1 are respectively located on the two adjacent sides of the array platform 2, and the tabs 4 on the array platform 2 are respectively positioned on the adjacent two sides; the top push block assembly 1 includes a top positioning block 11 for pushing the tab 4 from the top of the array platform 2 and a top cylinder 12 for driving the top positioning block 11 to move toward or away from the array platform 2, the top cylinder 12 controls the movement of the top positioning block 11, and normally pushes it to the array The pole lug 4 on the platform 2 is used to position the pole lug 4; the side push block assembly 3 includes a side positioning block 31 for pushing the positive pole lug 4 from the side of the entire platform 2 and a side cylinder 32 for driving the side positioning block 31 to move toward or away from the entire platform 2. The straight line where the side positioning block 31 moves is perpendicular to the straight line where the top positioning block 11 moves. When the top positioning block 11 pushes the pole lug 4, or before the top positioning block 11 pushes the pole lug 4, the side positioning block 31 can limit the pole lug 4 from the side, cooperate with the top positioning block 11, prevent the pole lug 4 from tilting, and realize the precise positioning of the pole lug 4.
[0019] The utility model utilizes the top cylinder 12 to control the top positioning block 11 to push the pole ear 4 on the top of the entire platform 2, and utilizes the side cylinder 32 to control the side positioning block 31 to push the pole ear 4 on the side of the entire platform 2, and then limits are performed on both sides of the pole ear 4 to prevent the pole ear 4 from tilting, thereby achieving accurate positioning of the pole ear 4 and improving the welding yield rate.
[0020] As a preferred implementation scheme in this embodiment, it needs to be further explained that the side positioning block 31 is an L-shaped structure, and one side of the side positioning block 31 contacts the surface of the pole ear 4 from the side of the entire platform 2, so as to facilitate the alignment of the pole ear 4 and prevent the pole ear 4 from tilting, thereby accurately positioning the pole ear 4. The other end of the side positioning block 31 clamps the pole ear 4 on the entire platform 2, which can press the pole ear 4 to prevent the pole ear 4 from warping during welding, thereby further improving the welding quality.
[0021] As a preferred implementation scheme in this embodiment, it needs to be further explained that the side push block assembly 3 also includes a side push block mounting sleeve 33, the piston rod of the side cylinder 32 is connected to the side push block mounting sleeve 33, and the side positioning block 31 is elastically installed on the side of the side push block mounting sleeve 33 close to the entire platform 2, so that the side positioning block 31 has an elastic pushing effect on the pole ear 4, and there is enough buffering room to achieve the balance of pushing. The use of elastic buffering can meet the buffering effect when the pole ear is pushed onto the entire platform 2, reducing the possibility of deformation caused by excessive collision force between the side positioning block 31 and the pole ear 4, avoiding long-term repair during collision, and at the same time having a certain compatibility. When the pole ear is not fully placed, it has a certain self-adjustment function, which reduces the failure rate, achieves high-precision positioning, and improves the yield rate.
[0022] As a preferred implementation scheme in this embodiment, it needs to be further explained that the side push block assembly 3 also includes a side guide pin 34 and a side spring 35. A side guide pin 34 is installed on a side of the side positioning block 31 close to the side push block mounting sleeve 33. A side mounting hole is opened on the side push block mounting sleeve 33, and a side linear bearing is installed in the side mounting hole. The side guide pin 34 is interactively connected to the side push block mounting sleeve 33 through the side linear bearing to ensure that the side positioning block 31 can always accurately push the pole ear 4 in one direction. The side spring 35 is sleeved on the side guide pin 34, one end of the side spring 35 abuts against the side positioning block 31, and the other end of the side spring 35 abuts against the side push block mounting sleeve 33 or the side linear bearing to ensure that the spring 35 can generate a stable elastic force on the side positioning block 31.
[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that the top positioning block 11 is an L-shaped structure, one side of the top positioning block 11 is arranged parallel to the bottom of the entire platform 2, and the other end of the top positioning block 11 contacts one side of the protruding part of the pole ear 4 from the top of the entire platform 2, so that when the top positioning block 11 pushes the pole ear 4, it does not push the protruding part of the pole ear 4 (the existing top positioning block 11 is a rectangular block, which pushes the protruding part of the pole ear 4), which can further improve the stability during pushing and further improve the accuracy of positioning.
[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that the top push block assembly 1 also includes a top push block mounting sleeve 13, the piston rod of the top cylinder 12 is connected to the top push block mounting sleeve 13, and the top positioning block 11 is elastically mounted on the side of the top push block mounting sleeve 13 close to the entire platform 2, so that the top positioning block 11 has an elastic pushing effect on the pole ear 4, and there is enough buffering room to achieve the balance of pushing. The use of elastic buffering can meet the buffering effect when the pole ear is pushed onto the entire platform 2, reducing the possibility of deformation caused by excessive collision force between the top positioning block 11 and the pole ear 4, avoiding long-term repair during collision, and at the same time having a certain compatibility. When the pole ear is not fully placed, it has a certain self-adjustment function, which reduces the failure rate, achieves high-precision positioning, and improves the yield rate.
[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the top push block assembly 1 also includes a top guide pin 14 and a top spring 15. A top guide pin 14 is installed on one side of the top positioning block 11 close to the top push block mounting sleeve 13. A top mounting hole is opened on the top push block mounting sleeve 13, and a top linear bearing is installed in the top mounting hole. The top guide pin 14 is interactively connected to the top push block mounting sleeve 13 through the top linear bearing to ensure that the top positioning block 11 can always accurately push the pole ear 4 in one direction. The top spring 15 is sleeved on the top guide pin 14, one end of the top spring 15 abuts against the top positioning block 11, and the other end of the top spring 15 abuts against the top push block mounting sleeve 13 or the top linear bearing, and the other end of the top spring 15 abuts against the top push block mounting sleeve 13 or the side linear bearing. The top spring 15 can generate a stable elastic force on the top positioning block 11.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A tab positioning mechanism suitable for power battery welding, comprising a top push block assembly (1) and an alignment platform (2), characterized in that: It also includes a side push block assembly (3), wherein the side push block assembly (3) and the top push block assembly (1) are respectively located on two adjacent sides of the alignment platform (2); the top push block assembly (1) includes a top positioning block (11) for pushing the pole ear (4) from the top of the alignment platform (2) and a top cylinder (12) for driving the top positioning block (11) to move toward or away from the alignment platform (2); the side push block assembly (3) includes a side positioning block (31) for pushing the positive pole ear (4) from the side of the alignment platform (2) and a side cylinder (32) for driving the side positioning block (31) to move toward or away from the alignment platform (2), and the straight line on which the side positioning block (31) moves is perpendicular to the straight line on which the top positioning block (11) moves.
2. A tab positioning mechanism suitable for power battery welding according to claim 1, characterized in that: The side positioning block (31) is an L-shaped structure, one side of the side positioning block (31) contacts the pole lug (4) from the side of the entire array platform (2), and the other end of the side positioning block (31) clamps the pole lug (4) on the entire array platform (2).
3. A tab positioning mechanism suitable for power battery welding according to claim 1 or 2, characterized in that: The side push block assembly (3) also includes a side push block mounting sleeve (33), the piston rod of the side cylinder (32) is connected to the side push block mounting sleeve (33), and the side positioning block (31) is elastically mounted on the side of the side push block mounting sleeve (33) close to the entire platform (2).
4. The tab positioning mechanism suitable for power battery welding according to claim 3, characterized in that: The side push block assembly (3) also includes a side guide pin (34) and a side spring (35). The side guide pin (34) is installed on a side of the side positioning block (31) close to the side push block mounting sleeve (33). The side push block mounting sleeve (33) is provided with a side mounting hole. A side linear bearing is installed in the side mounting hole. The side guide pin (34) is interactively connected to the side push block mounting sleeve (33) through the side linear bearing. The side spring (35) is sleeved on the side guide pin (34). One end of the side spring (35) is in contact with the side positioning block (31), and the other end of the side spring (35) is in contact with the side push block mounting sleeve (33) or the side linear bearing.
5. The tab positioning mechanism suitable for power battery welding according to claim 1, characterized in that: The top positioning block (11) is an L-shaped structure, one side of the top positioning block (11) is arranged parallel to the bottom of the alignment platform (2), and the other end of the top positioning block (11) contacts a side surface of the protruding portion of the pole lug (4) from the top of the alignment platform (2).
6. A tab positioning mechanism suitable for power battery welding according to claim 1 or 5, characterized in that: The top push block assembly (1) also includes a top push block mounting sleeve (13), the piston rod of the top cylinder (12) is connected to the top push block mounting sleeve (13), and the top positioning block (11) is elastically mounted on a side of the top push block mounting sleeve (13) close to the entire array platform (2).
7. The tab positioning mechanism for power battery welding according to claim 6, characterized in that: The top push block assembly (1) also includes a top guide pin (14) and a top spring (15). The top guide pin (14) is installed on one side of the top positioning block (11) close to the top push block mounting sleeve (13). The top push block mounting sleeve (13) is provided with a top mounting hole. A top linear bearing is installed in the top mounting hole. The top guide pin (14) is interactively connected to the top push block mounting sleeve (13) through the top linear bearing. The top spring (15) is sleeved on the top guide pin (14). One end of the top spring (15) is in contact with the top positioning block (11), and the other end of the top spring (15) is in contact with the top push block mounting sleeve (13) or the top linear bearing.