Welding measurement structure

Abstract

The invention belongs to the field of lithium battery production, and particularly relates to a welding measurement structure which comprises a support mechanism which comprises a first support, a second support, an upper large plate, a large plate and a fixing clamping block. The two first supports and the two second supports are fixedly installed on the four fixing clamping blocks, the fixing clamping blocks are fixedly installed on the top of the large plate, and the upper large plate is fixedly installed on the tops of the two first supports and the tops of the two second supports. The battery cell assembly body is positioned at the top of the large plate; the cam mechanism is mounted on the large plate; the transmission mechanism is mounted on the cam mechanism; the sheet metal mechanism is mounted on the cam mechanism; compared with a traditional magnetic pull-down detection scheme, the mechanism provided by the invention has the advantages that the detection accuracy and efficiency are greatly improved in a manner that a battery cell profiling rod is clamped by a rotating tower to impact a welding position.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to a welding measurement structure. Background Art

[0002] Batteries are a type of battery that uses lithium metal or lithium alloys as positive / negative electrode materials and a non-aqueous electrolyte solution. Gilbert N. Lewis first proposed and researched lithium metal batteries in 1912. In the 1970s, MS Whittingham proposed and began researching lithium-ion batteries. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use place very high demands on the environment. With the advancement of science and technology, lithium batteries have become mainstream. During lithium battery manufacturing, to optimize the charge and discharge rate performance of cylindrical cells and effectively reduce the internal resistance of the cells, the industry generally adopts a laser welding connection solution between a disc-shaped busbar and a steel shell negative electrode. While this innovative structural design significantly improves battery performance, it also imposes new technical requirements on the quality inspection system of the welding process. Therefore, the present invention proposes a welding measurement structure to address the above-mentioned problems. Summary of the Invention

[0003] Based on the background technology, in the lithium battery manufacturing process, in order to optimize the charge and discharge rate performance of cylindrical battery cells and effectively reduce the internal resistance of the battery cells, the industry generally adopts a laser welding connection solution between a disc-shaped busbar and a steel shell negative electrode. While this innovative structural design significantly improves battery performance, it also puts forward new technical requirements for the quality inspection system of the welding process. The present invention proposes a welding measurement structure.

[0004] The present invention proposes a welding measurement structure, comprising The bracket mechanism includes: bracket 1, bracket 2, upper large plate, large plate and fixed clamping block; The two brackets 1 and the two brackets 2 are fixedly mounted on four fixing clamps, the fixing clamps are fixedly mounted on the top of the large plate, and the upper large plate is fixedly mounted on the top of the two brackets 1 and the two brackets 2; A battery cell assembly, the battery cell assembly being located on top of the large plate; A cam mechanism, wherein the cam mechanism is mounted on the large plate; A transmission mechanism, wherein the transmission mechanism is mounted on the cam mechanism; a sheet metal mechanism, wherein the sheet metal mechanism is mounted on the cam mechanism; An actuator is installed on the sheet metal mechanism.

[0005] By means of the above mechanism: Compared with the traditional magnetic pull-down detection solution, this mechanism greatly improves the detection accuracy and efficiency by clamping the battery cell profiling rod through the turret to impact the welding position.

[0006] Preferably, the cam mechanism comprises: an upper convex block and a lower convex block; The upper convex block is fixedly installed on the bottom of the upper large plate, and the lower convex block is fixedly installed on the top of the large plate.

[0007] Preferably, the transmission mechanism includes: a transmission shaft 1, a fixed rotating bearing seat 1, a gear fixed end cover, a gear 1, a fixed rotating bearing seat 2, a gear 2, a transmission shaft 2, a fixed rotating bearing seat 3, a fixed transmission shaft 2 bearing seat 1, and a fixed transmission shaft 1 bearing seat 2; The top of the transmission shaft one cooperates with the fixed transmission shaft one bearing seat two, the fixed transmission shaft one bearing seat two is fixedly installed on the bottom of the upper large plate, the fixed rotating bearing seat one is fixedly installed on the top of the large plate, the bottom end of the transmission shaft one is connected to the fixed rotating bearing seat one, the fixed end cover of the gear is fixedly installed on the bottom of the transmission shaft one, the gear one is fixedly sleeved on the bottom of the transmission shaft one, the fixed rotating bearing seat two is installed on the bottom of the large plate, the gear two cooperates with the fixed rotating bearing seat two, the top of the transmission shaft two cooperates with the fixed transmission shaft bearing seat one, the bottom of the transmission shaft two cooperates with the fixed rotating bearing seat two, and the fixed transmission shaft bearing seat one is fixedly connected to the bottom of the upper large plate.

[0008] Preferably, the sheet metal mechanism comprises: a turret plate 1, a linear guide rail connecting plate, a turret connecting and fixing plate, a turret plate 2 and a splicing plate; The turret plate 1 is fixedly connected to the turret connecting and fixing plate, the turret connecting and fixing plate is fixedly connected to the splicing plate, the splicing plate cooperates with the transmission shaft 2, and the turret plate 2 cooperates with the turret plate 1 and the turret connecting and fixing plate.

[0009] Preferably, the actuator includes a ball bearing, a bearing fixing pin, a first contour impact rod, a linear bearing, a core magnetic seat, a linear guide rail, a second contour impact rod, a telescopic spring, a slider and a cylindrical guide rod; The ball bearing cooperates with the bearing fixing pin, the bearing fixing pin cooperates with the contoured impact rod one, the linear bearing cooperates with the turret plate two, the contoured impact rod one cooperates with the linear bearing, the contoured impact rod two cooperates with the large plate, the electric core magnetic seat cooperates with the sliding block, the round rod guide column cooperates with the turret plate two, the telescopic springs cooperate with the turret plate two and the sliding block respectively, and the linear guide rail is installed on the turret plate two.

[0010] Preferably, the top of the upper large plate is provided with circular through holes arranged in a matrix, the number of the central through holes is four, and the top ends of the two brackets 1 and the two brackets 2 are fixedly connected to the inner walls of the four circular through holes respectively.

[0011] The beneficial effects of the present invention are: Compared with the traditional magnetic pull-down detection solution, the present invention greatly improves the detection accuracy and efficiency by clamping the battery cell profiling rod through the turret to impact the welding position. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional schematic diagram of the structure of a welding measurement structure proposed by the present invention; Figure 2 This is a schematic front view of a welding measurement structure proposed by the present invention; Figure 3 This is a schematic cross-sectional view of a welding measurement structure proposed by the present invention; Figure 4 This is a schematic diagram of a partially enlarged view of the structure of a welding measurement structure proposed by the present invention; Figure 5 This is a schematic diagram of structural impact detection of a welding measurement structure proposed by the present invention.

[0013] Figure 1: Bracket mechanism; 2: Cam mechanism; 3: Transmission mechanism; 4: Sheet metal mechanism; 5: Actuator; 11: Bracket 1; 12: Bracket 2; 13: Upper plate; 14: Plate; 15: Fixed clamp; 21: Upper protrusion; 22: Lower protrusion; 31: Transmission shaft 1; 32: Fixed rotating bearing seat 1; 33: Gear fixed end cover; 34: Gear 1; 35: Fixed rotating bearing seat 2; 36: Gear 2; 37: Transmission shaft 2; 38: Fixed rotating bearing seat 3; 39: , fixed transmission shaft two bearing seat one; 310, fixed transmission shaft one bearing seat two; 41, turret plate one; 42, linear guide connecting plate; 43, turret connecting fixed plate; 44, turret plate two; 45, splicing plate; 51, ball bearing; 52, bearing fixing pin; 53, contoured impact rod one; 54, linear bearing; 55, battery cell magnetic seat; 56, linear guide; 57, contoured impact rod two; 58, telescopic spring; 59, slider; 510, cylindrical guide rod; 61, battery cell assembly. DETAILED DESCRIPTION

[0014] The present invention will be further explained below with reference to specific embodiments.

[0015] refer to Figure 1-5 , this embodiment proposes a welding measurement structure, including The bracket mechanism 1 includes: bracket 1 11, bracket 2 12, upper large plate 13, large plate 14 and fixed clamping block 15; The two brackets 11 and the two brackets 2 12 are fixedly mounted on four fixing clamps 15, the fixing clamps 15 are fixedly mounted on the top of the large plate 14, and the upper large plate 13 is fixedly mounted on the top of the two brackets 11 and the two brackets 2 12; The battery cell assembly 61 is located on top of the large plate 14; Cam mechanism 2, cam mechanism 2 is installed on the large plate 14; Transmission mechanism 3, which is mounted on the cam mechanism 2; The sheet metal mechanism 4 is mounted on the cam mechanism 2; The actuator 5 is installed on the sheet metal mechanism 4.

[0016] By means of the above mechanism: Compared with the traditional magnetic pull-down detection solution, this mechanism greatly improves the detection accuracy and efficiency by clamping the battery cell profiling rod through the turret to impact the welding position.

[0017] In this embodiment, the cam mechanism 2 includes: an upper protrusion 21 and a lower protrusion 22; The upper protrusion 21 is fixedly mounted on the bottom of the upper large plate 13 , and the lower protrusion 22 is fixedly mounted on the top of the large plate 14 .

[0018] In this embodiment, the transmission mechanism 3 includes: a transmission shaft 1 31, a fixed rotating bearing seat 1 32, a gear fixed end cover 33, a gear 1 34, a fixed rotating bearing seat 2 35, a gear 2 36, a transmission shaft 2 37, a fixed rotating bearing seat 3 38, a fixed transmission shaft 2 bearing seat 1 39, and a fixed transmission shaft 1 bearing seat 2 310; The top of the transmission shaft 31 cooperates with the fixed transmission shaft bearing seat 2 310, the fixed transmission shaft bearing seat 2 310 is fixedly installed on the bottom of the upper large plate 13, the fixed rotating bearing seat 1 32 is fixedly installed on the top of the large plate 14, the bottom end of the transmission shaft 31 is connected to the fixed rotating bearing seat 1 32, the gear fixed end cover 33 is fixedly installed on the bottom of the transmission shaft 31, the gear 1 34 is fixedly sleeved on the bottom of the transmission shaft 31, the fixed rotating bearing seat 2 35 is installed on the bottom of the large plate 14, the gear 2 36 cooperates with the fixed rotating bearing seat 2 35, the top of the transmission shaft 2 37 cooperates with the fixed transmission shaft bearing seat 1, the bottom of the transmission shaft 2 37 cooperates with the fixed rotating bearing seat 2 35, and the fixed transmission shaft bearing seat 1 is fixedly connected to the bottom of the upper large plate 13.

[0019] In this embodiment, the sheet metal mechanism 4 includes: a turret plate 1 41, a linear guide rail connecting plate 42, a turret connecting and fixing plate 43, a turret plate 2 44 and a splicing plate 45; The turret plate 1 41 is fixedly connected to the turret connecting and fixing plate 43 , the turret connecting and fixing plate 43 is fixedly connected to the splicing plate 45 , the splicing plate 45 cooperates with the transmission shaft 2 37 , and the turret plate 2 44 cooperates with the turret plate 1 41 and the turret connecting and fixing plate 43 .

[0020] In this embodiment, the actuator 5 includes a ball bearing 51, a bearing fixing pin 52, a contoured impact rod 1 53, a linear bearing 54, a core magnetic base 55, a linear guide 56, a contoured impact rod 2 57, a telescopic spring 58, a slider 59 and a cylindrical guide rod 510; The ball bearing 51 cooperates with the bearing fixing pin 52, the bearing fixing pin 52 cooperates with the contoured impact rod 1 53, the linear bearing 54 cooperates with the turret plate 2 44, the contoured impact rod 1 53 cooperates with the linear bearing 54, the contoured impact rod 2 57 cooperates with the large plate 14, the electric core magnetic seat 55 cooperates with the sliding block, the round rod guide column cooperates with the turret plate 2 44, the telescopic spring 58 cooperates with the turret plate 2 44 and the sliding block respectively, and the linear guide rail 56 is installed on the turret plate 2 44.

[0021] In this embodiment, the top of the upper large plate 13 is provided with circular through holes arranged in a matrix, with four central through holes. The top ends of the two brackets 11 and the two brackets 2 12 are fixedly connected to the inner walls of the four circular through holes respectively.

[0022] Working principle: The motor is connected to the reducer through a coupling, and the reducer is connected to the transmission gear to drive the transmission shaft 31, the fixed rotating bearing seat 32, the gear fixed end cover 33, the gear 34, the fixed rotating bearing seat, the gear 36, the transmission shaft 2 37, the fixed rotating bearing seat 2 35, the fixed transmission shaft 2 bearing seat 1 39, and the fixed transmission shaft 1 bearing seat 2 310 to rotate at high speed. When the battery cell assembly 61 is magnetically fixed by the battery cell magnetic seat 55 and the initial positioning is completed, the ball bearing 51, the bearing fixing pin 52, the profiling impact rod 1 53 and the ball bearing 51 and the bearing fixing pin 52 profiling impact rod move up and down to imitate the impact mechanism. When the battery cell assembly 61 is magnetically fixed by the battery cell magnetic seat 55, the transmission mechanism 3 drives the battery cell and the ball bearing 51, the bearing fixing pin 52, the profiling impact rod 1 53 and the ball bearing 51 and the bearing fixing pin 52 profiling impact rod 2 57 to move up and down to imitate the impact mechanism. When the cam rotates to a quick return motion angle, the upper imitation impact mechanism composed of the ball bearing 51, the bearing fixing pin 52, and the imitation impact rod 53 quickly impacts the bottom welding position of the battery cell assembly 61, so that the battery cell assembly 61 moves downward through the linear guide mechanism composed of the linear guide and the slider 59. At the same time, the lower imitation impact mechanism composed of the ball bearing 51, the bearing fixing pin 52, and the imitation impact rod 53 also rotates to the same working return motion angle as the cam to quickly push up the positive pole position of the cylindrical battery cell to prevent the battery cell from falling due to excessive impact. The buffer mechanism composed of the telescopic spring 58 and the cylindrical guide rod 510 can effectively alleviate the impact damage to the battery cell magnetic seat 55, linear guide, linear guide, slider 59 and other components caused by excessive impact. When the above process steps are completed, the subsequent PIC control unit determines whether the battery cell has fallen or is poorly soldered, and takes corresponding measures.

[0023] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A welding measurement structure, characterized in that: include; A bracket mechanism (1), the bracket mechanism (1) comprising: a bracket 1 (11), a bracket 2 (12), an upper large plate (13), a large plate (14) and a fixed clamping block (15); The two brackets 1 (11) and the two brackets 2 (12) are fixedly mounted on four fixed clamps (15), the fixed clamps (15) are fixedly mounted on the top of the large plate (14), and the upper large plate (13) is fixedly mounted on the top of the two brackets 1 (11) and the two brackets 2 (12); A battery cell assembly (61), wherein the battery cell assembly (61) is located on top of the large plate (14); A cam mechanism (2), wherein the cam mechanism (2) is mounted on a large plate (14); A transmission mechanism (3), wherein the transmission mechanism (3) is mounted on the cam mechanism (2); a sheet metal mechanism (4), the sheet metal mechanism (4) being mounted on the cam mechanism (2); An actuator (5), wherein the actuator (5) is mounted on the sheet metal mechanism (4).

2. A welding measurement structure according to claim 1, characterized in that: The cam mechanism (2) comprises: an upper convex block (21) and a lower convex block (22); The upper protrusion (21) is fixedly mounted on the bottom of the upper large plate (13), and the lower protrusion (22) is fixedly mounted on the top of the large plate (14).

3. A welding measurement structure according to claim 1, characterized in that: The transmission mechanism (3) comprises: a transmission shaft 1 (31), a fixed rotating bearing seat 1 (32), a gear fixed end cover (33), a gear 1 (34), a fixed rotating bearing seat 2 (35), a gear 2 (36), a transmission shaft 2 (37), a fixed rotating bearing seat 3 (38), a fixed transmission shaft 2 bearing seat 1 (39), and a fixed transmission shaft 1 bearing seat 2 (310); The top of the transmission shaft 1 (31) cooperates with the fixed transmission shaft 1 bearing seat 2 (310), the fixed transmission shaft 1 bearing seat 2 (310) is fixedly mounted on the bottom of the upper large plate (13), the fixed rotating bearing seat 1 (32) is fixedly mounted on the top of the large plate (14), the bottom end of the transmission shaft 1 (31) is connected to the fixed rotating bearing seat 1 (32), the gear fixed end cover (33) is fixedly mounted on the bottom of the transmission shaft 1 (31), the gear 1 (34) is fixedly sleeved on the bottom of the transmission shaft 1 (31), the fixed rotating bearing seat 2 (35) is mounted on the bottom of the large plate (14), the gear 2 (36) cooperates with the fixed rotating bearing seat 2 (35), the top of the transmission shaft 2 (37) cooperates with the fixed transmission shaft bearing seat 1, the bottom of the transmission shaft 2 (37) cooperates with the fixed rotating bearing seat 2 (35), and the fixed transmission shaft bearing seat 1 is fixedly connected to the bottom of the upper large plate (13).

4. A welding measurement structure according to claim 1, characterized in that: The sheet metal mechanism (4) comprises: a turret plate 1 (41), a linear guide rail connecting plate (42), a turret connecting fixing plate (43), a turret plate 2 (44) and a splicing plate (45); The turret plate 1 (41) is fixedly connected to the turret connecting and fixing plate (43), the turret connecting and fixing plate (43) is fixedly connected to the splicing plate (45), the splicing plate (45) is matched with the transmission shaft 2 (37), and the turret plate 2 (44) is matched with the turret plate 1 (41) and the turret connecting and fixing plate (43).

5. The welding measurement structure according to claim 1, characterized in that: The actuator (5) includes a ball bearing (51), a bearing fixing pin (52), a contoured impact rod (53), a linear bearing (54), a core magnetic base (55), a linear guide rail (56), a contoured impact rod (57), a telescopic spring (58), a slider (59) and a cylindrical guide rod (510); The ball bearing (51) cooperates with the bearing fixing pin (52), the bearing fixing pin (52) cooperates with the profiling impact rod (53), the linear bearing (54) cooperates with the turret plate (44), the profiling impact rod (53) cooperates with the linear bearing (54), the profiling impact rod (57) cooperates with the large plate (14), the electric core magnetic seat (55) cooperates with the sliding block, the round rod guide column cooperates with the turret plate (44), the telescopic spring (58) cooperates with the turret plate (44) and the sliding block respectively, and the linear guide rail (56) is installed on the turret plate (44).

6. A welding measurement structure according to claim 1, characterized in that: The top of the upper plate (13) is provided with circular through holes arranged in a matrix, with four central through holes. The top ends of the two brackets 1 (11) and the two brackets 2 (12) are fixedly connected to the inner walls of the four circular through holes respectively.

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