Equal-wall-thickness stretching equipment for battery shell
By designing wall thickness stretching equipment such as battery shells, and using multiple assembled clamps and tensile molds to cold-draw and stretch the battery shells, the problem of unreasonable wall thickness setting of existing equipment when dealing with battery shells with different wall thicknesses is solved, and equal wall thickness stretching is achieved, which improves the finished product performance and pass rate.
Patent Information
- Application Number
- CN202421535734.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-07-02
AI Technical Summary
When using battery steel shells with different wall thicknesses, the wall thickness setting of the existing battery steel shells is unreasonable, resulting in the inability to carry out the cold drawing process, the mechanical and structural properties of the finished product are difficult to meet the standards, and the pass rate is low.
A wall thickness stretching device for battery shells is designed. The battery shell is thinned by the mutual cooperation of multiple assembled clamps, and the shell is cold-drawn and stretched with a tensile mold. As the cold drawing progresses, the clamping blocks are closed simultaneously to achieve equal wall thickness stretching of the battery shells.
The equal wall thickness stretching of the battery case is achieved, which improves the practicality of the equipment, improves the mechanical and structural properties of the finished product, and increases the pass rate.
Smart Images
Figure CN222830468U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production and processing, in particular to a wall thickness stretching device for battery shells and the like. Background Art
[0002] The battery steel shell stretching equipment includes a number of punches arranged in sequence along the feeding direction, including a slitting and initial punch at one end of the feeding, an intermediate punch, and a forming punch at the discharge end. The inner diameter of the punch hole in the corresponding die below the punch is consistent from top to bottom. The weight and shape of the battery steel shell directly determine the amount of its contents. In order to reduce the weight of the battery steel shell, the wall thickness of the battery steel shell is thinned in the prior art.
[0003] However, the current extrusion + cold drawing method is generally used to produce battery shells with equal wall thickness. However, for battery shells with unequal walls, due to different wall thicknesses, the wall thickness setting of the drawn blanks obtained by the extrusion process is unreasonable, and coordinated deformation cannot be achieved during drawing, making the subsequent cold drawing (drawing) process impossible to carry out, and the mechanical properties and structural properties of the finished product are difficult to meet the standards, and the pass rate is low. Utility Model Content
[0004] The purpose of the utility model is to provide a wall thickness stretching device for battery casings, etc., to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0006] The cam is provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers.
[0007] As a further solution of the utility model: the stretching die is fixedly connected to the fixing platform by means of mounting bolts.
[0008] As a further solution of the utility model: a hydraulic pump is fixedly connected to the base, and an output shaft of the hydraulic pump is fixedly connected to the lifting platform.
[0009] As a further solution of the utility model: a positioning hole is arranged in the stretching die, a positioning rod is fixedly connected to the fixing platform, and the positioning rod and the positioning hole cooperate with each other.
[0010] As a further solution of the utility model: the rotary drive assembly includes a second fixed frame fixedly connected to the upper mounting plate, the second fixed frame is rotatably connected to the first bevel gear, a bevel gear ring is fixedly connected to the outer wall of the rotating frame, and the bevel gear ring is meshed with the first bevel gear.
[0011] As a further solution of the utility model: a motor is fixedly connected to the second fixing frame, and an output shaft of the motor is fixedly connected to a set of first bevel gears.
[0012] Compared with the prior art, the utility model has the following beneficial effects: the utility model thins the battery shell by means of the mutual cooperation of multiple assembly clamps, and then inserts the stretching die into the shell to perform cold drawing on the shell, and as the cold drawing proceeds, the clamping blocks are synchronously contracted, thereby achieving equal wall thickness stretching of the battery shell, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic structural diagram of a wall thickness stretching device for battery casings, etc. in the utility model.
[0014] Figure 2 The utility model is a schematic diagram of the internal structure of a rotating frame in a wall thickness stretching device for battery casings, etc.
[0015] Figure 3 It is a cross-sectional view of a wall thickness stretching device for battery casings, etc. in the utility model.
[0016] In the figure: 1-base, 2-support rod, 3-upper mounting plate, 4-slide rod, 5-slide cylinder, 6-lifting platform, 7-hydraulic pump, 8-fixed platform, 9-mounting bolts, 10-stretching die, 11-positioning rod, 12-stretching mouth, 13-first fixed frame, 14-telescopic rod, 15-clamping block, 16-mounting seat, 17-rotating frame, 18-second fixed frame, 19-first bevel gear, 20-motor, 21-bevel groove, 22-mounting frame, 23-roller, 24-bevel gear ring. DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0018] See also Figure 1 to Figure 3 In an embodiment of the utility model, a wall thickness stretching device for battery casings, etc., comprises a base 1, a support rod 2 is fixedly connected to the base 1, an upper mounting plate 3 is fixedly connected to the support rod 2, a sliding rod 4 is fixedly connected between the upper mounting plate 3 and the base 1, a sliding cylinder 5 is slidably connected to the sliding rod 4, a lifting platform 6 is fixedly connected to the sliding cylinder 5, a fixed platform 8 is installed on the lifting platform 6, and a stretching die 10 is installed on the fixed platform 8. The utility model slides and fixes the stretching die 10 by sliding connection between the sliding rod 4 and the sliding cylinder 5, and a stretching port 12 is arranged in the upper mounting plate 3. The utility model slides and fixes the stretching die 10 by sliding connection between the sliding rod 4 and the sliding cylinder 5. The upper mounting plate 3 is provided with a stretching port 12. The arrangement is convenient for extending the stretching die 10. The upper mounting plate 3 is fixedly connected with multiple groups of first fixed frames 13 equidistantly distributed with the stretching port 12 as the center. A telescopic rod 14 is slidably connected in the first fixed frame 13. A clamping block 15 is fixedly connected at one end of the telescopic rod 14. The multiple assembly clamping blocks 15 cooperate with each other. A mounting seat 16 is fixedly connected to the upper mounting plate 3. A rotating frame 17 is rotatably connected to the mounting seat 16 through a bearing. An inclined groove 21 is fixedly connected to the inner wall of the rotating frame 17. A mounting frame 22 is fixedly connected to the other end of the telescopic rod 14. Rollers 23 are rotatably connected at both ends of the mounting frame 22. The rollers 23 The upper mounting plate 3 is arranged in the inclined groove 21, and is connected with a rotating drive assembly for driving the rotating frame 17 to rotate. The utility model first places the thinned portion of the shell between the multiple assembly clamps 15, and then drives the rotating frame 17 to rotate through the rotating drive assembly, and the rotating frame 17 drives the inclined groove 21 to rotate, and the inclined groove 21 drives the roller 23 to extend and retract through the mutual cooperation with the roller 23, and the roller 23 drives the multiple groups of telescopic rods 14 to synchronously extend and retract in the first fixed frame 13 through the mounting frame 22, and the multiple groups of telescopic rods 14 drive the multiple assembly clamps 15 to synchronously retract, so as to clamp the shell. Afterwards, the stretching die 10 is driven to rise by the lifting platform 6, so that the stretching die 10 is inserted into the shell. At this time, the inner wall of the shell is relatively fixed under the limit of the stretching die 10, and the outer wall of the shell is also relatively fixed under the action of the clamping block 15. At this time, the shell can be cold-drawn by the stretching die 10, and as the cold drawing proceeds, the shell gradually becomes thinner. At this time, the multi-assembly clamping block 15 can be driven to close again, thereby realizing the synchronous closing and clamping of the inner and outer walls of the shell, and the relative distance between the multi-assembly clamping block 15 and the stretching die 10 changes synchronously, thereby realizing the equal wall thickness stretching of the battery shell.
[0019] In one case of this embodiment, see Figure 1 to Figure 3 A hydraulic pump 7 is fixedly connected to the base 1, and the output shaft of the hydraulic pump 7 is fixedly connected to the lifting platform 6. The utility model drives the lifting platform 6 to rise and fall through the hydraulic pump 7, and then drives the stretching die 10 to rise through the lifting platform 6, so as to perform cold drawing and stretching on the shell.
[0020] In one case of this embodiment, see Figure 1 to Figure 3 A positioning hole is provided in the stretching die 10, and a positioning rod 11 is fixedly connected to the fixed platform 8. The positioning rod 11 cooperates with the positioning hole. The utility model performs relative positioning and installation between the fixed platform 8 and the stretching die 10 through the mutual cooperation between the positioning rod 11 and the positioning hole, thereby avoiding misalignment between the fixed platform 8 and the stretching die 10. At the same time, the stretching die 10 is fixedly connected to the fixed platform 8 by the mounting bolts 9, thereby improving the stability of the connection between the stretching die 10 and the fixed platform 8.
[0021] In one case of this embodiment, see Figure 1 to Figure 3 The rotation drive assembly includes a second fixed frame 18 fixedly connected to the upper mounting plate 3, and the first bevel gear 19 is rotatably connected to the second fixed frame 18. A bevel gear ring 24 is fixedly connected to the outer wall of the rotating frame 17, and the bevel gear ring 24 is meshed with the first bevel gear 19. The second fixed frame 18 is fixedly connected to a motor 20, and the output shaft of the motor 20 is fixedly connected to a group of first bevel gears 19. The rotation drive assembly drives the first bevel gear 19 to rotate through the motor 20, and the first bevel gear 19 drives the rotating frame 17 to rotate by meshing with the bevel gear ring 24.
[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.
[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A wall thickness stretching device for battery casing, etc., comprising a base, characterized in that: The cam is provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers, and the plurality of rollers are provided with a plurality of rollers.
2. A wall thickness stretching device for battery casings etc. according to claim 1, characterized in that: The stretching die is fixedly connected to the fixing platform via mounting bolts.
3. A battery casing wall thickness stretching device according to claim 1, characterized in that: The base is fixedly connected with a hydraulic pump, and the output shaft of the hydraulic pump is fixedly connected to the lifting platform.
4. A wall thickness stretching device for battery casings etc. according to claim 1, characterized in that: A positioning hole is arranged in the stretching die, a positioning rod is fixedly connected to the fixing platform, and the positioning rod and the positioning hole cooperate with each other.
5. The wall thickness stretching equipment for battery casing etc. according to claim 1, characterized in that: The rotary drive assembly includes a second fixed frame fixedly connected to the upper mounting plate, the second fixed frame is rotatably connected to the first bevel gear, the outer wall of the rotating frame is fixedly connected to a bevel gear ring, and the bevel gear ring is meshed with the first bevel gear.
6. A battery casing wall thickness stretching device according to claim 5, characterized in that: The second fixing frame is fixedly connected with a motor, and the output shaft of the motor is fixedly connected to a set of first bevel gears.