CN213163820U

CN213163820U - Battery module pole piece welding jig

Info

Publication number: CN213163820U
Application number: CN202020864911.XU
Authority: CN
Inventors: 郭瑞杰; 李亚辉
Original assignee: Huasu Tianjin Technology Co ltd
Current assignee: Huasu Tianjin Technology Co ltd
Priority date: 2020-05-21
Filing date: 2020-05-21
Publication date: 2021-05-11
Anticipated expiration: 2030-05-21

Abstract

The utility model relates to a battery module pole piece welding jig, compress tightly the subassembly including the pole piece, module centre gripping subassembly is fixed the battery module on the base, the pole piece compresses tightly the subassembly and includes clamp plate, extensible member, the clamp plate is located the top of module centre gripping subassembly, the extensible member is connected to the bottom of clamp plate, the relative base of extensible member drive clamp plate reciprocates, the mounting hole has been seted up on the clamp plate, be equipped with the intercommunicating pore that runs through the clamp plate on a lateral wall in the mounting hole. Two depression bars pass through bolted connection, make the distance between the depression bar can adjust to can establish the regulation depression bar according to the difference of the distance between two rows of binding post on the different battery module, guarantee that the depression bar can press the center at the pole piece all the time, can the not battery module of equidimension of centre gripping, application scope is wider.

Description

Battery module pole piece welding jig

Technical Field

The utility model relates to a battery module technical field, concretely relates to battery module pole piece welding jig.

Background

With the rapid development of new energy industry, the development of energy storage technology and its industry is becoming the key point of current social attention, and battery module is the most critical part in energy storage system. The connection between a plurality of batteries is crucial in the battery module, in battery module assembling process, need pass through the welding of welding machine with a plurality of binding post on pole piece and the battery module in order to realize parallelly connected or series connection, but prior art, it is not tight to press between pole piece and the binding post, lead to welding quality poor, thereby influence the intercommunication between a plurality of batteries, and the distance between two rows of binding post is different on the battery module of different models, current welding jig can't compress tightly the pole piece on the battery module on multiple model, application scope is narrow.

SUMMERY OF THE UTILITY MODEL

For solving the problem that prior art exists, the utility model provides a battery module pole piece welding jig.

In order to achieve the above object, the utility model adopts the following technical scheme:

a battery module pole piece welding fixture comprises a base, a module clamping assembly, a pole piece pressing assembly and a pressing assembly, wherein the module clamping assembly is arranged on the base, the pole piece pressing assembly fixes a battery module on the base and comprises a pressing plate and an extensible member, the pressing plate is positioned above the module clamping assembly, the bottom end of the pressing plate is connected with the extensible member, the extensible member drives the pressing plate to move up and down relative to the base, a mounting hole is formed in the pressing plate, a communicating hole penetrating through the pressing plate is formed in one side wall in the mounting hole, a first sliding groove is formed in the other side wall in the mounting hole, a plurality of threaded holes which are arranged at equal intervals are respectively formed in the pressing plates on two sides of the mounting hole, a threaded hole on one side of the mounting hole is communicated with the communicating hole, a threaded hole on the other side of the mounting hole is communicated with the first sliding groove, two ends of the pressing rod extend into the adjacent communication holes or the first sliding grooves respectively, and a bolt is connected with one of the threaded holes on two sides of the pressing rod in a threaded mode through threads respectively so as to tightly press the pressing rod and fix the pressing rod with the pressing plate.

In any of the above schemes, preferably, the pressure plate outside the mounting hole is provided with a guide hole, a guide post penetrating through the pressure plate is arranged in the guide hole, and the bottom end of the guide post is fixed on the base.

In any of the above schemes, preferably, the bottom walls of the two sides of the pressure plate are respectively connected with a telescopic member, the telescopic member is a telescopic cylinder, the telescopic cylinder is fixed on the base, a push-pull rod is fixed at the free end of a telescopic rod on the telescopic cylinder, and the push-pull rod is fixedly connected with the bottom of the pressure plate.

In any of the above schemes, preferably, the communication hole is a rectangular hole, the width of the communication hole is the same as the width of the first sliding groove, and the height of the communication hole is greater than the thickness of the pressing rod.

Preferably, in any of the above schemes, the module clamping assembly includes a fixed clamp plate, a movable clamp plate and a back plate which are parallel to each other, the fixed clamp plate is fixed on the base, the movable clamp plate is slidably connected to the base, the back plate is fixed on the base at the rear side of the fixed clamp plate and the movable clamp plate, a push-pull cylinder is fixed on the base at the side of the movable clamp plate far away from the fixed clamp plate, and the movable clamp plate at the free end of the telescopic rod on the push-pull cylinder is fixed.

In any of the above schemes, preferably, the bottom of the push-pull cylinder is fixed with a support table, the support table is fixed on the base, and the telescopic rod on the push-pull cylinder is fixed with the central part of the side wall of the movable clamping plate.

In any of the above schemes, preferably, the base is provided with a second sliding groove, the bottom end of the movable clamping plate is fixed to a sliding block matched with the second sliding groove, and the sliding block is inserted into the second sliding groove so that the movable clamping plate can move relative to the base.

In any of the above aspects, it is preferable that the pressing plate is located above the fixed clamping plate, the movable clamping plate, and the rear plate.

In any of the above embodiments, preferably, the pressure plate on the side of the mounting hole is engraved with a scale value.

Compared with the prior art, the utility model provides a pair of battery module pole piece welding jig has following beneficial effect:

1. the two movable pressure rods are arranged on the pressure plate, so that the welded pole piece is tightly pressed on the wiring terminal without deviation, the pole piece is better contacted with the wiring terminal, the welding quality problem caused by the fact that the pole piece is not tightly pressed is avoided, and the good contact between the pole piece and the wiring terminal is ensured; the two pressure rods are connected through the bolts, so that the distance between the pressure rods can be adjusted, the pressure rods can be adjusted according to different distances between two rows of wiring terminals on different battery modules, the pressure rods can be guaranteed to be pressed at the centers of the pole pieces all the time, the battery modules with different sizes can be clamped, and the application range is wider;

2. set up the scale interval on the clamp plate, make the distance between two depression bars of adjusting more swift accurate.

Drawings

Fig. 1 is a schematic overall structure diagram of a preferred embodiment of a welding fixture for battery module pole pieces provided by the present invention;

FIG. 2 is a top view of the platen in the embodiment of FIG. 1;

fig. 3 is a schematic view illustrating an overall structure of the battery module clamped in fig. 1.

The figures are labeled as follows: 1. a base; 2. a telescoping member; 3. a support table; 4. a back plate; 5. fixing the clamping plate; 6. moving the clamping plate; 7. pressing a plate; 8. a guide post; 9. a push-pull cylinder; 10. a battery module; 11. a bolt; 12. a threaded hole; 13. a guide hole; 14. a communicating hole; 15. a chute; 16. mounting holes; 17. a pressure lever.

Detailed Description

In order to further understand the inventive content of the present invention, the present invention will be explained in detail with reference to the specific embodiments.

As shown in fig. 1-3, an embodiment of a battery module pole piece welding fixture provided by the present invention comprises a base 1, a module clamping assembly disposed on the base 1, and a pole piece pressing assembly for fixing a battery module 10 on the base 1, wherein the pole piece pressing assembly comprises a pressing plate 7 and an expansion member 2, the pressing plate 7 is disposed above the module clamping assembly, the bottom end of the pressing plate 7 is connected to the expansion member 2, the expansion member 2 drives the pressing plate 7 to move up and down relative to the base 1, the pressing plate 7 is provided with a mounting hole 16, one side wall of the mounting hole 16 is provided with a communication hole 14 penetrating through the pressing plate 7, the other side wall of the mounting hole 16 is provided with a first sliding groove 15, the pressing plate 7 on both sides of the mounting hole 16 is respectively provided with a plurality of threaded holes 12 arranged at equal intervals, the threaded hole 12 on one side of the mounting hole is communicated with the communicating hole 14, the threaded hole 12 on the other side of the mounting hole is communicated with the first sliding groove 15, two parallel pressing rods 17 are arranged in the mounting hole 16, two ends of each pressing rod 17 extend into the adjacent communicating hole 14 or the first sliding groove 15 respectively, and the threaded connection bolts 11 are arranged in the threaded holes 12 on two sides of each pressing rod 17 respectively so as to tightly press the pressing rods 17 and fix the pressing rods 7. The base 1 may be mounted on a welding machine to allow the welding machine to weld the electrode pieces.

The two pressure levers 17 correspond to two rows of wiring terminals on the battery module 10 one by one respectively, the battery module 10 is clamped and fixed on the base 1 through the module clamping assembly, then a long-strip-shaped pole piece to be welded is placed at the position of the wiring terminals on the battery module 10, then the telescopic piece 2 is started, the pressure plate 7 moves downwards, the pressure levers 17 are driven to move downwards until the central position of the corresponding pole piece is pressed, two sides of the pole piece are exposed outside, and the side ends of the pole piece and the wiring terminals are welded through a welding machine; two depression bars 17 all compress tightly the depression bar 17 through being connected of bolt 11 with screw hole 12 and fix on clamp plate 7, the bottom of bolt 11 extends to in the intercommunicating pore 14 and butt depression bar 17, compress tightly fixedly depression bar 17, make depression bar 17 can't remove in intercommunicating pore 14 and spout 15, because the distance between the two rows of binding post on the different battery module 10 is different, in order to compress tightly the pole piece on the different battery module 10, need adjust the distance between two depression bars 17, when needing to remove, screw out bolt 11, then remove two depression bars 17 with the distance between the regulation, thereby be applicable to and compress tightly the pole piece on the different battery module 10.

Two depression bars 17 pass through bolted connection 11, make the distance between the depression bar 17 can be adjusted to can establish the regulation depression bar 17 according to the difference of the distance between two rows of binding post on different battery module 10, guarantee that depression bar 17 can press the center at the pole piece all the time, can the not battery module 10 of equidimension of centre gripping, application scope is wider.

The guide holes 13 are formed in the pressing plate 7 on the outer side of the mounting hole 16, guide posts 8 penetrating through the pressing plate 7 are arranged in the guide holes 13, the bottom end of each guide post 8 is fixed on the base 1, the guide holes 13 are four positions which are located on the pressing plate 7 and close to four corner ends of the mounting hole 16 respectively, the guide posts 8 are arranged, the guide positioning effect is achieved, and the pressing plate 7 is prevented from being deviated.

The bottom walls of the two sides of the pressing plate 7 are respectively connected with a telescopic piece 2, the telescopic pieces 2 are telescopic cylinders, the telescopic cylinders are fixed on the base 1, free ends of telescopic rods on the telescopic cylinders are fixed with push-pull rods, and the push-pull rods are fixedly connected with the bottom of the pressing plate 7.

The telescopic parts 2 are positioned on two sides of the guide post 8.

The communicating hole 14 is a rectangular hole, the width of the communicating hole 14 is the same as that of the first sliding groove 15, and the height of the communicating hole 14 is larger than the thickness of the press rod 17, so that the press rod 17 can penetrate into the mounting hole 16 from the communicating hole 14 when being mounted. One end of the pressure lever is abutted against the inner wall of the first sliding groove.

The module clamping assembly comprises a fixed clamping plate 5, a movable clamping plate 6 and a rear plate 4 which are parallel to each other, the fixed clamping plate 5 is fixed on a base 1, the movable clamping plate 6 is connected to the base 1 in a sliding mode, the rear plate 4 is fixed on the base 1 at the rear side of the fixed clamping plate 5 and the rear side of the movable clamping plate 6, a push-pull air cylinder 9 is fixed on the base 1 at one side, away from the fixed clamping plate 5, of the movable clamping plate 6, and the movable clamping plate 6 at the free end of an upper telescopic rod of the push-pull air cylinder 9. The fixed clamping plate 5 and the movable clamping plate 6 are respectively positioned right below the mounting hole 16, the length of the battery module 10 clamped by the module clamping assembly is smaller than that of the mounting hole 16, and the pole piece to be welded is conveniently pressed by the pressing rod 17.

Place battery module 10 on base 1 between solid fixed splint 5 and movable splint 6, make battery module 10 back wall butt on back plate 4, then start push-and-pull cylinder 9 and drive movable splint 6 and remove on base 1 to press from both sides tightly battery module 10 between solid fixed splint 5 and movable splint 6.

The bottom of the push-pull cylinder 9 is fixedly provided with a support table 3, the support table 3 is fixed on the base 1, a telescopic rod on the push-pull cylinder 9 is fixed with the central part of the side wall of the movable clamping plate 6, the telescopic part 2 is positioned on one side of the support table 3, and the guide posts 8 are positioned on the front side and the rear side of the support table 3.

The base 1 is provided with a second sliding groove 15, the bottom end of the movable clamping plate 6 is fixed on a sliding block matched with the second sliding groove 15, and the sliding block is inserted into the second sliding groove 15 so that the movable clamping plate 6 can move relative to the base 1.

The pressing plate 7 is positioned above the fixed clamping plate 5, the movable clamping plate 6 and the back plate 4.

Be carved with the scale interval on the clamp plate 7 of mounting hole 16 one side, be convenient for the regulation of the distance between two depression bars 17, make the regulation more accurate swift.

It will be understood by those skilled in the art that any combination of the elements of the present invention, including the summary and detailed description of the invention provided in the foregoing description and illustrated in the accompanying drawings, is not to be considered limiting in scope and in order to make the description more concise, and not to describe every element of the combination. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a battery module pole piece welding jig, includes base, module centre gripping subassembly sets up on the base, its characterized in that: the battery module is fixed on the base by the module clamping assembly, the pole piece pressing assembly comprises a pressing plate and a telescopic piece, the pressing plate is positioned above the module clamping assembly, the bottom end of the pressing plate is connected with an expansion piece, the expansion piece drives the pressing plate to move up and down relative to the base, the pressure plate is provided with a mounting hole, a communication hole penetrating through the pressure plate is arranged on one side wall in the mounting hole, the other side wall in the mounting hole is provided with a first chute, the press plates at the two sides of the mounting hole are respectively provided with a plurality of threaded holes which are arranged at equal intervals, the threaded hole at one side of the mounting hole is communicated with the communicating hole, the threaded hole at the other side of the mounting hole is communicated with the first chute, two parallel compression bars are arranged in the mounting hole, two ends of each compression bar extend into the adjacent communication holes or the adjacent first sliding grooves respectively, and a bolt is respectively in threaded connection in one threaded hole at two sides of the pressure lever so as to tightly press the pressure lever and fix the pressure lever with the pressure plate.

2. The battery module pole piece welding jig of claim 1, characterized in that: the guide hole is formed in the pressing plate on the outer side of the mounting hole, a guide post penetrating through the pressing plate is arranged in the guide hole, and the bottom end of the guide post is fixed on the base.

3. The battery module pole piece welding jig of claim 1, characterized in that: the bottom walls of the two sides of the pressing plate are respectively connected with a telescopic piece, the telescopic pieces are telescopic cylinders, the telescopic cylinders are fixed on the base, free ends of telescopic rods on the telescopic cylinders are fixed with push-pull rods, and the push-pull rods are fixedly connected with the bottom of the pressing plate.

4. The battery module pole piece welding jig of claim 1, characterized in that: the communicating hole is a rectangular hole, the width of the communicating hole is the same as that of the first sliding groove, and the height of the communicating hole is larger than the thickness of the pressure rod.

5. The battery module pole piece welding jig of claim 1, characterized in that: the module clamping assembly comprises a fixed clamping plate, a movable clamping plate and a rear plate which are parallel to each other, the fixed clamping plate is fixed on the base, the movable clamping plate is connected to the base in a sliding mode, the rear plate is fixed on the base behind the fixed clamping plate and the movable clamping plate, a push-pull air cylinder is fixed on the base, away from the fixed clamping plate, of the movable clamping plate, and the free end of a telescopic rod on the push-pull air cylinder is fixed through the movable clamping plate.

6. The battery module pole piece welding jig of claim 5, characterized in that: a supporting table is fixed at the bottom of the push-pull cylinder, the supporting table is fixed on the base, and a telescopic rod on the push-pull cylinder is fixed with the central part of the side wall of the movable clamping plate.

7. The battery module pole piece welding jig of claim 6, characterized in that: the base is provided with a second sliding groove, the bottom end of the movable clamping plate is fixed on a sliding block matched with the second sliding groove, and the sliding block is inserted into the second sliding groove so that the movable clamping plate can move relative to the base.

8. The battery module pole piece welding jig of claim 7, characterized in that: the pressing plate is positioned above the fixed clamping plate, the movable clamping plate and the back plate.

9. The battery module pole piece welding jig of claim 1, characterized in that: and a scale value is carved on the pressing plate at one side of the mounting hole.