Battery assembly double-station tension test mechanism

Abstract

The utility model discloses a double-station tension testing mechanism for battery assembly, which comprises a support back plate, a transverse plate and a bottom plate are respectively arranged at the upper end and the lower end of the support back plate, two tension testing cylinders are arranged at the top of the transverse plate, two clamp cylinders are arranged below the transverse plate through a fixing plate, and a photoelectric induction sensor is arranged on the support back plate. A tab clamp is arranged at the bottom of the clamp air cylinder, a welded roll core and steel shell integrated structure is placed under the tab clamp, and a steel shell baffle is arranged on the side, close to the clamp air cylinder, of the support back plate. The device comprises two stations, the structural design is compact and reasonable, and the occupied area of the device is saved; the pressure of the two groups of tension measuring cylinders can be independently adjusted, so that the tension and the rising speed of each group can be conveniently controlled; and one machine comprises double stations, and only one operator is needed for operation, so that the detection efficiency of products is greatly improved, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery processing, in particular to a double-station tensile test mechanism for battery assembly. Background Art

[0002] During the production process of batteries, after assembly, a tensile test process is required. The existing battery assembly tensile test mechanisms are large in volume and usually only include one station, with low efficiency. In addition, each device requires an operator, resulting in high labor costs. Therefore, the traditional tensile test mechanisms lead to low efficiency in battery R & D and production enterprises, unable to reach the production volume required by production, and now can no longer meet the growing market demand. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the above technical defects and provide a double-station tensile test mechanism for battery assembly, which is used to detect the welding firmness between the negative electrode tab of the core and the bottom of the battery steel shell.

[0004] To solve the above technical problem, the technical solution provided by the utility model is: a double-station tensile test mechanism for battery assembly, including a support back plate. Horizontal plates and bottom plates are respectively arranged at the upper and lower ends of the support back plate. Two tensile test cylinders are arranged on the top of the horizontal plate. One guide post is arranged on each side of the tensile test cylinder. A linear bearing is arranged on the guide post. Two clamp cylinders are arranged under the horizontal plate through a fixing plate. The fixing plate is fixed on the support back plate. Photoelectric induction sensors are respectively arranged corresponding to the two clamp cylinders between the support back plate and the fixing plate. An ear clip is arranged at the bottom of the clamp cylinder. The place directly below the ear clip is used to place the integrated structure of the wound core and the steel shell that has been welded. A steel shell baffle is arranged on one side of the support back plate close to the clamp cylinder.

[0005] Preferably, the horizontal plate and the bottom plate are respectively located on different sides of the support back plate.

[0006] Preferably, support reinforcing plates are arranged between the two sides of the support back plate and the bottom plate.

[0007] Preferably, the steel shell baffle is of an inverted L-shaped structure.

[0008] The advantages of the utility model compared with the prior art are as follows: the utility model includes two stations, with a compact and reasonable structural design, saving the floor area of the equipment; the pressures of the two groups of tensile test cylinders can be adjusted independently, which is convenient for controlling the tensile force and rising speed of each group; one machine includes two stations and only requires one operator, greatly improving the detection efficiency of products and saving labor costs. Brief Description of the Drawings

[0009] Figure 1It is a schematic structural diagram of a double-station tensile test mechanism for battery assembly of the present utility model.

[0010] As shown in the figure: 1. Bracket back plate, 2. Horizontal plate, 3. Bottom plate, 4. Tensile force measuring cylinder, 5. Guide pillar, 6. Linear bearing, 7. Fixed plate, 8. Clip cylinder, 9. Photoelectric induction sensor, 10. Ear clip, 11. Integrated structure of winding core and steel shell, 12. Steel shell baffle, 13. Bracket reinforcement plate. Specific implementation manner

[0011] Next, in combination with the embodiments of the present utility model, the technical solutions of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0012] In combination with the attached drawings, a double-station tensile test mechanism for battery assembly includes a bracket back plate 1. Horizontal plates 2 and a bottom plate 3 are respectively arranged at the upper and lower ends of the bracket back plate 1. Two tensile force measuring cylinders 4 are arranged at the top of the horizontal plate 2. A guide pillar 5 is arranged on each side of the tensile force measuring cylinder 4. A linear bearing 6 is arranged on the guide pillar 5. Two clip cylinders 8 are arranged below the horizontal plate 2 through a fixed plate 7. The fixed plate 7 is fixed on the bracket back plate 1. A photoelectric induction sensor 9 is respectively arranged on the bracket back plate 1 corresponding to the two clip cylinders 8 between the horizontal plate 2 and the fixed plate 7. An ear clip 10 is arranged at the bottom of the clip cylinder 8. The integrated structure 11 of the winding core and the steel shell that has been welded is placed directly below the ear clip 10. A steel shell baffle 12 is arranged on one side of the bracket back plate 1 close to the clip cylinder 8. The horizontal plate 2 and the bottom plate 3 are respectively located on different sides of the bracket back plate 1. Bracket reinforcement plates 13 are arranged between the two sides of the bracket back plate 1 and the bottom plate 3. The steel shell baffle 12 is of an inverted L-shaped structure.

[0013] The detection actions during the specific implementation of the present utility model are as follows:

[0014] (1) The feeding mechanism sends the integrated structure 11 of the winding core and the steel shell that has been welded to the detection station;

[0015] (2) The clip cylinder 8 drives the ear clip 10 to clamp the positive ear of the winding core;

[0016] (3) The tensile force measuring cylinder 4 acts to drive the clip cylinder 8 and the winding core to rise. The pressures of the two groups of tensile force measuring cylinders 4 can be independently adjusted to control the tensile force and the rising speed of each group;

[0017] (4) When the integrated structure 11 of the winding core and the steel shell rises, the steel shell is blocked by the steel shell baffle 12 to prevent the steel shell from rising;

[0018] (5) In the case where the steel shell is blocked, the core can continue to rise a certain distance. When it rises to the ultimate tensile force and maintains this tensile force without triggering the photoelectric induction sensor 9, the control system determines that the welding is qualified; when it rises to the ultimate tensile force and maintains this tensile force and has triggered the photoelectric induction sensor 9, the control system determines that the welding is defective.

[0019] (6) After the detection is completed, it is sent to the next working station by the conveying mechanism.

[0020] The above describes the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the creation of the present utility model, design similar structural modes and embodiments to this technical solution without creative efforts, they shall fall within the protection scope of the present utility model.

Claims

1. A double-station tensile test mechanism for battery assembly, comprising a support back plate, characterized in that: The upper and lower ends of the bracket back plate are respectively provided with a cross plate and a bottom plate. Two tensile force measuring cylinders are arranged at the top of the cross plate. One guide post is arranged on each side of the tensile force measuring cylinder. A linear bearing is arranged on the guide post. Two clamp cylinders are arranged below the cross plate through a fixing plate. The fixing plate is fixed on the bracket back plate. A photoelectric induction sensor is arranged corresponding to each of the two clamp cylinders between the cross plate and the fixing plate on the bracket back plate. A tab clamp is arranged at the bottom of the clamp cylinder. The place directly below the tab clamp is used for placing the integrally structured wound core and steel shell that have been welded. A steel shell baffle is arranged on one side of the bracket back plate close to the clamp cylinder.

2. The double-station tensile testing mechanism for battery assembly according to claim 1, wherein: The cross plate and the bottom plate are respectively located on different sides of the bracket back plate.

3. A double-station tensile test mechanism for battery assembly according to claim 1, characterized in that: Bracket reinforcing plates are arranged between the two sides of the bracket back plate and the bottom plate.

4. A double-station tensile testing mechanism for battery assembly according to claim 1, characterized in that: The steel shell baffle is of an inverted L-shaped structure.

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