CN112705610A

CN112705610A - Battery shell stretching equipment and technology

Info

Publication number: CN112705610A
Application number: CN201910954904.0A
Authority: CN
Inventors: 张晓昊; 李笋; 贺建明; 白聚勇
Original assignee: Jiangxi Tsingke Jiuyang Intelligent Equipment Co ltd
Current assignee: Jiangxi Tsingke Jiuyang Intelligent Equipment Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2021-04-27

Abstract

The application provides equipment and a process for stretching a battery shell, which comprise a rack, a driving system, a conveying system, a rotating system, a stamping rod system and a bottom die system. According to the method, in the process of stretching and forming the battery shell, the electromagnetic heating device is used for accurately controlling heating and cooling for different stretched materials, so that the extensibility of the materials is increased, and the stages of multi-stage stretching procedures are reduced; according to the battery shell continuous production device, continuous production of the battery shells can be realized through arrangement of multiple devices, and a lot of auxiliary production time caused by conveying the shells in the middle can be avoided, so that the production efficiency is greatly improved; the product quality can be greatly improved due to the continuity of the product production; the equipment realizes synchronization of all internal components by using the same drive, reduces equipment cost and improves product quality.

Description

Battery shell stretching equipment and technology

Technical Field

The invention relates to the technical field of battery shell processing, in particular to equipment and a process for thermal stretching of a battery shell, which are applicable to the technical fields of battery shells, capacitor shells and the like.

Technical Field

The global new energy automobile is rapidly developed, the demand of pulling the lithium battery is increased rapidly, the steel shell and the capacitor shell which are used as power batteries (lithium batteries and common alkaline batteries) are stamping equipment at present, the deformation degree required by the steel shell exceeds the maximum deformation degree allowed by one-time forming of materials, and the steel shell cannot be formed by one-time stretching, so the steel shell is stamped and formed by multi-pass stretching and thinning stretching. The existing stamping equipment has the problems of large matching error between a feeding mechanism and a punch press, unstable forming quality, high lug making rate, low material utilization rate, high cost and the like. And the problems of material conveying and the like between the existing stamping equipment and the multi-stage stamping equipment cause low production efficiency.

Disclosure of Invention

The invention aims to provide battery shell stretching equipment and a battery shell stretching process, which aim to overcome the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme:

the embodiment of the application provides battery case stretching equipment and technology, and the equipment comprises a rack, a driving system, a conveying system, a rotating system, a stamping rod system and a bottom die system. The working mode is that the driving system provides power to drive the rotation system, the conveying system and the stamping rod system to operate. The driving system comprises a motor and a transmission mechanism, and the motor and the transmission mechanism are connected and driven through a belt. The conveying system comprises a feeding conveying guide rail, a feeding conveying disc, a clinker conveying disc and a discharging conveying guide rail, and the feeding conveying disc, the clinker conveying disc and the discharging conveying guide rail are all arranged on the machine frame. The swing system includes a turret, a bearing mechanism, and a bearing housing. The stamping rod system comprises a stamping rod and an auxiliary support, and the stamping rod penetrates through the auxiliary support and then reaches the bottom die system. The bottom die system comprises an electromagnetic heater, a bottom die plate, a ground forming die, a driver, a limiting rod, a guide rail, a bottom die supporting frame and an auxiliary supporting frame.

Furthermore, the stamping rod system and the bottom die system are distributed around the rotary system in an array mode.

Further, the bottom surface forming die is supported on the auxiliary supporting frame.

Furthermore, the bottom die support frame is sleeved outside the rotating tower, and a guide rail is arranged between the bottom die support frame and the outer wall of the rotating tower.

Furthermore, the driver acts on the bottom surface forming die and can drive the bottom surface forming die to approach or be far away from the auxiliary supporting frame.

Further, the electromagnetic heater is installed on the bottom template.

A plurality of battery shell stretching devices can be arranged in series according to the process requirements to form a battery shell stretching production line.

Compared with the prior art, the invention has the advantages that: in the process of stretching and forming the battery shell, the electromagnetic heating device is used for accurately controlling heating and cooling for different stretched materials, so that the elongation of the materials is enhanced, the stages of multistage stretching procedures are reduced, and the effects of improving the quality, the processing speed and the yield of products are achieved.

In addition, the invention can realize the continuous production of the battery shell, and can not generate much auxiliary production time due to the intermediate conveying and transferring of the shell, thereby greatly improving the production efficiency; the product quality can be greatly improved due to the continuity of the product production; the equipment realizes synchronization of all internal components by using the same drive, reduces equipment cost and improves product quality.

Drawings

Fig. 1 is a sectional view showing a battery case stretching apparatus.

Fig. 2 shows an enlarged view of a in fig. 1.

Fig. 3 is a schematic view of the electromagnetic heating device B in fig. 1.

Fig. 4 is a top view of the battery case stretching apparatus.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2, 3 and 4, the present invention provides a battery case stretching apparatus including a frame 10, a driving system 20, a conveying system 30, a revolving system 40, a ram rod system 50, and a bottom die system 60.

The driving system comprises a motor 21 and a transmission mechanism 22, and the motor 21 and the transmission mechanism 22 are connected and transmitted through a belt.

The conveying system comprises a feeding conveying guide rail 31, a feeding conveying disc 32, a clinker conveying disc 33 and a discharging conveying guide rail 34, and the feeding conveying disc, the clinker conveying disc and the discharging conveying guide rail are all arranged on the machine frame 10.

The swivel system comprises a turret 41, a bearing mechanism 42 and a bearing block 43.

The punching rod system comprises a punching rod 51 and an auxiliary support 52, and the punching rod 51 penetrates through the auxiliary support 52 and then reaches the bottom die system.

The bottom die system comprises an electromagnetic heater 61, a bottom die plate 62, a bottom surface forming die 63, a driver 64, a limiting rod 65, a guide rail 66, a bottom die support frame 67 and an auxiliary support frame 68. The bottom surface molding die 63 is supported on an auxiliary support frame 68. The bottom die support 67 is mounted to the outer side of the turret 41, and a guide rail 66 is provided between the bottom die support 67 and the outer wall of the turret 41.

The frame 10 includes a conveyor system 30, a rotary system 40, and a bottom die system 60, which provide sufficient space for their operation.

The rotary system 40 transmits the power of the drive system 60 to the punch rods 51 and the die plate 62 to redirect the workpiece. The turret 21 is able to rotate circumferentially about its axis to allow the cell casing to change path and form multiple punches.

The punching rod 51 performs circular motion and circumferential motion on the turret 41 along with the turret 41, and is matched with the bottom template 62 to realize the change of the diameter and the height of the battery shell.

A guide rail 66 is arranged between the punching rod 51 and the outer wall of the turret 41, the punching rod 51 is connected with the guide rail 66, and the punching rod can move up and down along the guide rail 66. The stamping rod 51 is generally long, in order to ensure the stability of the movement along the vertical direction, an auxiliary support 52 is also arranged, a positioning hole for the stamping rod 51 to pass through is arranged on the auxiliary support 52,

further, the auxiliary support 52 is an annular plate body, which is sleeved outside the turret 41 and is vertically fixed with the outer wall of the turret 41. The auxiliary supporting member has a plurality of positioning holes arranged in an annular array, and each positioning hole corresponds to one stamping rod 51.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A battery shell stretching device and a process thereof comprise a rack, a driving system, a conveying system, a rotary system, a stamping rod system and a bottom die system, wherein the driving system provides power to drive the rotary system, the conveying system and the stamping rod system to operate; the driving system comprises a motor and a transmission mechanism, and the motor and the transmission mechanism are connected and transmitted through a belt; the conveying system comprises a feeding conveying guide rail, a feeding conveying disc, a clinker conveying disc and a discharging conveying rail, and the feeding conveying guide rail, the feeding conveying disc, the clinker conveying disc and the discharging conveying rail are all arranged on the rack; the rotary system comprises a turret, a bearing mechanism and a bearing seat; the stamping rod system comprises a stamping rod and an auxiliary support, and the stamping rod penetrates through the auxiliary support and then reaches the bottom die system; the bottom die system comprises an electromagnetic heater, a bottom die plate, a ground forming die, a driver, a limiting rod, a guide rail, a bottom die supporting frame and an auxiliary supporting frame.

2. The battery case stretching apparatus and process of claim 1, wherein the array of punch bar systems and bottom die systems are distributed around the rotary system.

3. The battery case stretching apparatus and process according to claim 1, wherein the bottom surface forming mold is supported on an auxiliary support frame.

4. The battery case stretching apparatus and process according to claim 1, wherein the bottom die support frame is sleeved outside the turret, and a guide rail is disposed between the bottom die support frame and an outer wall of the turret.

5. The battery case stretching apparatus and process according to claim 1, wherein the electromagnetic heater is mounted on the bottom mold plate, and the electromagnetic heating device is used for accurately controlling heating and cooling for different stretched materials in the stretching process, so that the elongation of the materials is increased, and the number of stages of a multi-stage stretching process is reduced.