CN219417006U

CN219417006U - Welding tension testing device for negative electrode lug

Info

Publication number: CN219417006U
Application number: CN202320722218.2U
Authority: CN
Inventors: 向送求; 周丽
Original assignee: Guangdong Boliying Technology Co ltd
Current assignee: Guangdong Boliying Technology Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-07-25
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a negative electrode lug welding tension testing device which comprises a bottom supporting plate and a sliding clamping block, wherein a telescopic detection assembly is arranged at the middle end of the top of the bottom supporting plate, a tension sensor is connected to the top of a telescopic rod, the sliding clamping block is arranged at the left end and the right end of the tension sensor, the clamping assembly comprises a clamping plate and a fastening head, and an automatic assembly is connected to the inner side of the bottom of the clamping plate. This negative pole ear welding tension testing arrangement compares with current testing arrangement, and is fixed through all setting up slip fixture block clamping assembly and automatic subassembly in both sides to stretching out and drawing back through same tension sensor detects, improves the detection effect, protects tension sensor's slip through setting up the blotter, avoids colliding damage to influence subsequent use, and it is fixed through setting up the elasticity block that subassembly and elasticity joint subassembly were placed to the battery, can be more convenient in the detection process dismouting, improves detection efficiency.

Description

Welding tension testing device for negative electrode lug

Technical Field

The utility model relates to the technical field of battery production, in particular to a welding tension testing device for a negative electrode lug.

Background

In the production process of the round lithium battery, the tab is welded on the bottom surface of the steel shell, the technical requirement of fixed tension performance is required to be met, the welding effect is measured by pulling down the tab from the connecting sheet and the steel shell, and the welding tension testing device is also required to be used for detecting.

The patent document of publication No. CN218121604U discloses a lithium battery negative electrode lug welding tension testing device, in the use, the device includes pull rod, anchor clamps seat, sets up in the anchor clamps seat and places the cavity, places the cavity upper wall middle part and offers the logical groove of cross-under tab, and the pull rod corresponds logical groove and connects the clamping jaw downwards, and the pull rod is the bulb pull rod, place cavity upper wall lower extreme setting and use logical groove as central symmetry, inside cross-under tab, bottom butt steel shell inner bottom's plastics lantern ring, plastics lantern ring height is higher than steel shell lateral wall height. The device simple structure, pole piece clamp dress, pull connect obtain effective control, ensure that tensile test performance is accurate, the precision is high.

Above-mentioned well is tested negative pole ear welded fastness through simple structure, can only pull the test to the negative pole ear of single battery in the testing process, and the efficiency of test is lower, and in the in-process of need carrying out a large amount of detection data and carrying out the spot check, can influence the progress of inspection, and then has influenced the production efficiency that follow-up can continue to produce according to the inspection result, to above-mentioned condition, now provides negative pole ear welding tension testing arrangement.

Disclosure of Invention

The utility model aims to provide a welding tension testing device for a negative electrode lug, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a negative pole ear welding tension testing arrangement, includes bottom sprag board and slip fixture block, bottom sprag board's top middle-end is provided with flexible detection component, and flexible detection component includes telescopic link and tension sensor, the top of telescopic link is connected with tension sensor, slip fixture block sets up in tension sensor's left and right sides both ends, and the inboard of slip fixture block is provided with clamping assembly, clamping assembly includes grip block and fastening head, and the bottom outside of grip block is connected with the fastening head, the bottom inboard of grip block is linked there is automatic subassembly.

Further, the automatic assembly comprises an elastic pull rod and a balancing weight, and the balancing weight is connected to the bottom of the elastic pull rod.

Further, the top left and right sides of bottom support board all is provided with sliding connection subassembly, and sliding connection subassembly includes bracing piece and spout, the inside of bracing piece is provided with the spout.

Further, the top of bracing piece is connected with buffering protection subassembly, and buffering protection subassembly includes roof and cushion, the inboard bonding of roof has the blotter.

Further, both ends all are provided with the extension and place the board about the bottom support board, and extend the top of placing the board and be connected with the battery and place the subassembly.

Further, the battery placement component comprises a placement frame and a compression spring, and a wall, close to the central axis of the bottom support plate, inside the placement frame is connected with the compression spring.

Further, a wall of placing frame inside and keeping away from bottom support plate axis is connected with elasticity joint subassembly, and elasticity joint subassembly includes elastic sheet and extrusion spring, the inside of elastic sheet is provided with extrusion spring.

Compared with the prior art, the utility model has the beneficial effects that: through all setting up slip fixture block clamping assembly and automatic subassembly in both sides and carry out the centre gripping fixedly to stretching through same tension sensor and dragging, improve detection effect, protect tension sensor's slip through setting up the blotter, avoid collision damage to influence subsequent use, it is fixed through setting up the elasticity block that subassembly and elasticity joint subassembly were placed to the battery, can more convenient dismouting in the testing process, improve detection efficiency.

1. In the detection process, the negative electrode lug of the battery is pulled out and then placed on the sliding clamping block, the elastic pull rod is pulled by the dead weight of the balancing weight, then the elastic pull rod pulls the clamping plate to slide on the inner wall of the sliding clamping block, the fastening head at the lower end of the clamping plate can tightly clamp and fix the negative electrode lug, and then the telescopic rod drives the tension sensor to move up and down to test the welding tension of the negative electrode lug.

2. Before detection, the battery is required to be fixed, the battery is placed by arranging the extending placing plate for convenient taking, then the position of the battery is limited by the placing frame, the compression spring is extruded firstly, then the battery is clamped at the inner side of the elastic sheet, and the pressure is exerted by the elastic pressure of the elastic sheet and the internal supporting elastic force of the extrusion spring, so that the left end and the right end of the battery are elastically extruded, the battery can be disassembled and assembled more conveniently in the detection process, and the detection efficiency is improved.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of a welding tension testing device for a negative electrode lug of the utility model;

FIG. 2 is an enlarged schematic view of the welding tension testing apparatus for the negative electrode tab shown in FIG. 1;

fig. 3 is a schematic diagram of a partial front sectional structure of an elastic clamping assembly of the welding tension testing device for a negative electrode tab of the present utility model.

In the figure: 1. a bottom support plate; 2. a sliding connection assembly; 201. a support rod; 202. a chute; 3. a telescoping detection assembly; 301. a telescopic rod; 302. a tension sensor; 4. sliding the clamping block; 5. a clamping assembly; 501. a clamping plate; 502. a fastening head; 6. an automated assembly; 601. an elastic pull rod; 602. balancing weight; 7. a buffer protection assembly; 701. a top plate; 702. a cushion pad; 8. an extension placing plate; 9. a battery placement assembly; 901. placing a frame; 902. a compression spring; 10. an elastic clamping assembly; 1001. an elastic sheet; 1002. the spring is pressed.

Detailed Description

As shown in fig. 1 and 2, the welding tension testing device for the negative electrode lug comprises a bottom supporting plate 1 and a sliding clamping block 4, the middle end of the top of the bottom supporting plate 1 is provided with a telescopic detection component 3, the telescopic detection component 3 comprises a telescopic rod 301 and a tension sensor 302, the top of the telescopic rod 301 is connected with the tension sensor 302, the sliding clamping block 4 is arranged at the left end and the right end of the tension sensor 302, the inner side of the sliding clamping block 4 is provided with a clamping component 5, the clamping component 5 comprises a clamping plate 501 and a fastening head 502, the outer side of the bottom of the clamping plate 501 is connected with the fastening head 502, the inner side of the bottom of the clamping plate 501 is linked with an automatic component 6, the automatic component 6 comprises an elastic pull rod 601 and a balancing weight 602, the bottom of the elastic pull rod 601 is connected with the balancing weight 602, in the detection process, the negative electrode lug of a battery is pulled out and then placed on the sliding clamping block 4, the elastic pull rod 601 pulls the clamping plate 501 to slide on the inner wall of the sliding clamping block 4, the fastening head 502 tightly clamps and fixes the negative electrode lug through the telescopic rod, and then drives the tension sensor 301 to move down the pulling rod 302, and the negative electrode lug is simultaneously, and the two sides of the clamping block are welded together, and the two sides of the negative electrode lug can be simultaneously detected, and the two sides of the negative electrode lug can be welded together, and the left and the negative electrode lug can be detected, and the negative electrode lug can be detected and the negative electrode lug and the tensile sensor can be detected and the tensile sensor and the tensile force sensor can be detected and the tensile device.

As shown in fig. 1 and 3, the left and right ends of the bottom supporting plate 1 are respectively provided with an extending placing plate 8, the top of the extending placing plate 8 is connected with a battery placing component 9, the battery placing component 9 comprises a placing frame 901 and a compression spring 902, a wall, close to the central axis of the bottom supporting plate 1, inside the placing frame 901 is connected with the compression spring 902, a wall, far away from the central axis of the bottom supporting plate 1, inside the placing frame 901 is connected with an elastic clamping component 10, the elastic clamping component 10 comprises an elastic sheet 1001 and an extrusion spring 1002, the inside of the elastic sheet 1001 is provided with the extrusion spring 1002, before detection, the battery needs to be fixed, the battery is placed by arranging the extending placing plate 8 for convenient taking, then the position of the battery is limited by the placing frame 901, the compression spring 902 is extruded firstly, then the inside of the elastic sheet 1001 is clamped, the elastic force of the elastic sheet 1001 is added to the internal supporting elastic force of the extrusion spring 1002 to press the left end and the right end of the battery, so that the battery can be conveniently and quickly assembled and disassembled in the detection process, the detection efficiency is improved, the sliding connection assemblies 2 are arranged on the left side and the right side of the top of the bottom supporting plate 1, the sliding connection assemblies 2 comprise supporting rods 201 and sliding grooves 202, the sliding grooves 202 are arranged in the supporting rods 201, the top of the supporting rods 201 is connected with a buffering protection assembly 7, the buffering protection assembly 7 comprises a top plate 701 and a buffering pad 702, the buffer pad 702 is adhered to the inner side of the top plate 701, the tension sensor 302 is pushed by the expansion of the telescopic rod 301, then the sliding adjustment is carried out in the sliding grooves 202 in the supporting rods 201 to detect the tensile force, the sliding of the tension sensor 302 is protected by the buffering pad 702 when the sliding to the top end, avoiding collision damage to influence subsequent use.

To sum up, when using this negative pole ear welding tension testing arrangement, firstly, before detecting, it is fixed to the battery, for conveniently take, specially place the battery through setting up to extend and place board 8, then carry out spacingly through placing frame 901 to the position of battery, extrude compression spring 902 earlier, then the inboard at elastic sheet 1001 again, through the elastic pressure of elastic sheet 1001 self plus the inside supporting elasticity of extrusion spring 1002 exert pressure, thereby form elastic extrusion to the left and right sides both ends of battery, make things convenient for the dismouting, then in the testing process, pull out the negative pole ear of battery through, then place on slide fixture block 4, through dead weight pulling elastic pull rod 601 of balancing weight 602, then elastic pull rod 601 pulling grip block 501 slides on slide fixture block 4's inner wall, then the fastening head 502 of grip block 501 lower extreme is tightly held fixedly to the negative pole ear, then rethread telescopic link 301 drives tension sensor 302 and reciprocates, because both sides at tension sensor 302 all are provided with the same slide fixture block 4, grip block 5 and automatic component 6 and carry out fixed group, can carry out the detection simultaneously and carry out the measuring in the slide to the inside of the slide groove of the slide sensor 302, the top end is adjusted to the slide in the slide device is detected by the telescopic link rod 302, the top end is detected by the telescopic link 302, the inside is detected by the telescopic link device is 201.

Claims

1. Negative pole ear welding tension testing arrangement, including bottom sprag board (1) and slip fixture block (4), its characterized in that, the top middle-end of bottom sprag board (1) is provided with flexible detection component (3), and flexible detection component (3) are including telescopic link (301) and tension sensor (302), the top of telescopic link (301) is connected with tension sensor (302), slip fixture block (4) set up in both ends about tension sensor (302), and the inboard of slip fixture block (4) is provided with clamping component (5), clamping component (5) are including grip block (501) and fastening head (502), and the bottom outside of grip block (501) is connected with fastening head (502), the bottom inboard of grip block (501) is linked has automatic subassembly (6).

2. The negative electrode tab welding tension testing device according to claim 1, wherein the automatic assembly (6) comprises an elastic pull rod (601) and a balancing weight (602), and the balancing weight (602) is connected to the bottom of the elastic pull rod (601).

3. The negative electrode lug welding tension testing device according to claim 1, wherein the left side and the right side of the top of the bottom supporting plate (1) are provided with sliding connection assemblies (2), the sliding connection assemblies (2) comprise supporting rods (201) and sliding grooves (202), and the sliding grooves (202) are formed in the supporting rods (201).

4. The negative electrode tab welding tension testing device according to claim 3, wherein the top of the supporting rod (201) is connected with a buffer protection assembly (7), the buffer protection assembly (7) comprises a top plate (701) and a buffer pad (702), and a buffer pad (702) is adhered to the inner side of the top plate (701).

5. The welding tension testing device for the negative electrode lug according to claim 1, wherein the left end and the right end of the bottom supporting plate (1) are respectively provided with an extension placing plate (8), and the top of the extension placing plate (8) is connected with a battery placing assembly (9).

6. The welding tension testing apparatus of the negative electrode tab according to claim 5, wherein the battery placement member (9) comprises a placement frame (901) and a compression spring (902), and a wall inside the placement frame (901) near the central axis of the bottom support plate (1) is connected with the compression spring (902).

7. The welding tension testing device for the negative electrode lug according to claim 6, wherein an elastic clamping assembly (10) is connected to a wall, away from the central axis of the bottom supporting plate (1), inside the placement frame (901), and the elastic clamping assembly (10) comprises an elastic sheet (1001) and an extrusion spring (1002), and the extrusion spring (1002) is arranged inside the elastic sheet (1001).