CN215315083U

CN215315083U - Incision drawing compound die for battery shell

Info

Publication number: CN215315083U
Application number: CN202121204568.7U
Authority: CN
Inventors: 杨浩; 周勤勇
Original assignee: Wuxi Jinyang New Material Co ltd
Current assignee: Wuxi Jinyang New Material Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-12-28
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a notch stretching compound die of a battery case, which comprises an upper die and a lower die, wherein the upper die comprises an upper die base, an upper padding plate, an upper die fixing plate and a stripper plate which are sequentially connected from top to bottom, the lower die comprises a lower die base, a lower padding plate and a lower die fixing plate which are sequentially connected from top to bottom, a stretching punch is fixedly connected to the upper die fixing plate, a cutter is arranged on the stripper plate and comprises a body part at the lower end and a limiting part at the upper end, a notch is formed in the stripper plate, the upper end surface of the cutter is connected with the lower end of a spring, the upper end of the spring is fixed on the upper die base, a cavity is formed in the middle of the cutter, a notch female die is fixedly connected to the lower die fixing plate, a notch cavity is formed in the notch female die, and a stretching female die is fixedly connected to the lower part in the notch cavity. According to the utility model, the cutter is arranged on the upper die by adjusting the position of the cutter, so that the position of burrs after the notch is changed, the burrs are positioned on the outer side of the battery shell and are not easy to fall into the battery shell, and the shell wall of the battery is not pulled.

Description

Incision drawing compound die for battery shell

Technical Field

The utility model relates to the field of dies, in particular to a notch drawing compound die for a battery shell.

Background

A lithium ion battery is a type of rechargeable battery that mainly relies on lithium ions moving between a positive electrode and a negative electrode to operate. During charging and discharging, Li + is inserted and extracted back and forth between two electrodes: when the battery is charged, Li + is extracted from the positive electrode and is inserted into the negative electrode through the electrolyte, and the negative electrode is in a lithium-rich state; the opposite is true during discharge. Because the lithium ion battery has the characteristics of small volume, light weight, strong electric quantity, environmental protection and the like, the lithium ion battery is widely applied to industrial production and daily life.

The battery shell is an important component of the lithium ion battery. In the production process of the existing battery shell, the battery shell needs to be cut and stretched. As shown in fig. 1, which is a schematic structural diagram of a conventional battery case notch drawing compound die, a cutter 101 and a notch female die 102 of the battery case notch drawing compound die are both installed on a lower die, wherein the cutter 101 and the drawing female die are of an integrated structure, and burrs generated after the notch of the compound film of this structure is completed are located on the inner side of a battery case and easily fall into the battery case, so that the wall of the battery case is easily damaged in subsequent production.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving the above-mentioned problems, and an object of the present invention is to provide a composite die for drawing a battery case through a slit, so as to solve the above-mentioned problems.

The purpose of the utility model is realized by the following technical scheme:

a notch drawing compound die of a battery case comprises an upper die and a lower die, wherein the upper die comprises an upper die base, an upper padding plate, an upper die fixing plate and a stripper plate which are sequentially connected from top to bottom, the lower die comprises a lower die base, a lower padding plate and a lower die fixing plate which are sequentially connected from top to bottom, the stripper plate can move up and down relative to the upper die fixing plate, a drawing punch is fixedly connected to the upper die fixing plate, a cutter is arranged on the stripper plate and comprises a body part at the lower end and a limiting part at the upper end, a notch matched with the body part is formed in the stripper plate, the caliber of the notch is smaller than the outer diameter of the limiting part, the upper end surface of the cutter is connected with the lower end of a spring, the upper end of the spring is fixed on the upper die base after penetrating through the upper die fixing plate and the upper padding plate, a die cavity for the drawing punch to penetrate through is formed in the middle of the cutter, the lower die fixing plate is fixedly connected with a notch female die matched with the cutter, a notch cavity is formed in the notch female die, and a stretching female die matched with the stretching punch is fixedly connected to the lower portion in the notch cavity.

As a preferable scheme of the utility model, the upper end surface of the stripper plate is fixedly connected with a guide post, and the guide post penetrates through the upper die fixing plate and the upper backing plate and then is in sliding fit with the upper die base.

As a preferable scheme of the utility model, the spring is a nitrogen spring, the nitrogen spring is fixed on the upper die base, and the upper end surface of the cutter is connected with a plunger rod of the nitrogen spring.

As a preferable aspect of the present invention, the position-limiting portion and the body portion are of an integral structure.

As a preferred scheme of the utility model, a guide sleeve guide post assembly is arranged between the upper die holder and the lower die holder.

Compared with the prior art, the battery case deburring device has the advantages that the position of the cutter is adjusted, the cutter is arranged on the upper die, the position of burrs after the notch can be changed, the burrs are located on the outer side of the battery case and are not prone to falling into the battery case, the wall of the battery case is not prone to being scratched, and the battery case deburring device is simple in structure and easy to achieve.

Drawings

FIG. 1 is a schematic structural diagram of a slitting and stretching compound die of a conventional battery case;

fig. 2 is a schematic structural view of a slitting and stretching compound die for a battery case according to the present invention.

In the figure:

101. a cutter; 102. a cutter female die;

1. an upper die holder; 2. an upper base plate; 3. an upper die fixing plate; 4. a material removing plate; 5. a lower die holder; 6. a lower base plate; 7. a lower die fixing plate; 8. stretching the punch; 9. a cutter; 10. a spring; 11. a notch female die; 12. stretching the female die; 13. and a guide post.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the embodiments described herein are illustrative only and are not limiting upon the present invention.

Referring to fig. 2, fig. 2 is a schematic structural view of a slitting and stretching compound die for a battery case according to the present invention.

In this embodiment, the drawing compound die for the notch of the battery case comprises an upper die and a lower die, wherein the upper die comprises an upper die base 1, an upper padding plate 2, an upper die fixing plate 3 and a stripper plate 4 which are sequentially connected from top to bottom, the lower die comprises a lower die base 5, a lower padding plate 6 and a lower die fixing plate 7 which are sequentially connected from top to bottom, the stripper plate 4 can move up and down relative to the upper die fixing plate 3, a drawing punch 8 is fixedly connected to the upper die fixing plate 3, a cutter 9 is arranged on the stripper plate 4, the cutter 9 comprises a body part at the lower end and a limiting part at the upper end, a notch matched with the body part is formed in the stripper plate 4, the caliber of the notch is smaller than the outer diameter of the limiting part, the upper end face of the cutter 9 is connected with the lower end of a spring 10, and the upper end of the spring 10 is fixed on the upper die base 1 after passing through the upper die fixing plate 3 and the upper padding plate 2, the die is characterized in that a cavity for the stretching punch 8 to pass through is formed in the middle of the cutter 9, a notch female die 11 matched with the cutter 9 is fixedly connected to the lower die fixing plate 7, a notch cavity is formed in the notch female die 11, and a stretching female die 12 matched with the stretching punch 8 is fixedly connected to the lower portion of the notch cavity.

Specifically, in this embodiment, a guide post 13 is fixedly connected to an upper end surface of the stripper plate 4, and the guide post 13 passes through the upper die fixing plate 3 and the upper backing plate 2 and then is in sliding fit with the upper die base 1.

Specifically, in this embodiment, the spring 10 is a nitrogen spring, the nitrogen spring is fixed to the upper die holder 1, and the upper end surface of the cutter 9 is connected to a plunger rod of the nitrogen spring.

Specifically, in this embodiment, the position-limiting portion and the body portion are an integral structure.

Specifically, in this embodiment, a guide sleeve and guide pillar assembly is installed between the upper die holder 1 and the lower die holder 5.

Above-mentioned tensile compound die of incision of battery case installs cutter 9 in last mould through adjustment cutter 9 position, and then can change the position of incision back burr for the burr is located the outside of battery case, is difficult for falling into in the battery case, and then can not pull the battery shell wall, simple structure, easily realization.

The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the utility model, which changes and modifications are within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims.

Claims

1. The utility model provides a tensile compound die of incision of battery case, includes mould, lower mould, go up the mould and include from last upper die base, upper padding plate, the punch plate that connects gradually down, take off the flitch, the lower mould includes from last lower die base, lower padding plate, the lower mould fixed plate that connects gradually down, it can for to take off the flitch the punch plate reciprocates, its characterized in that: the upper die fixing plate is fixedly connected with a stretching punch, the stripper plate is provided with a cutter, the cutter comprises a body part at the lower end and a limiting part at the upper end, the stripper plate is provided with a notch matched with the body part, the caliber of the notch is smaller than the outer diameter of the limiting part, the upper end face of the cutter is connected with the lower end of the spring, the upper end of the spring passes through the upper die fixing plate and the upper backing plate and then is fixed on the upper die base, the middle of the cutter is provided with a cavity for the stretching punch to pass through, the lower die fixing plate is fixedly connected with a notch female die matched with the cutter, the notch female die is provided with a notch cavity, and the lower part in the notch cavity is fixedly connected with the stretching female die matched with the stretching punch.

2. The slitting and stretching compound die for the battery case according to claim 1, wherein: and the upper end surface of the stripper plate is fixedly connected with a guide post, and the guide post penetrates through the upper die fixing plate and the upper backing plate and then is in sliding fit with the upper die base.

3. The slitting and stretching compound die for the battery case according to claim 1, wherein: the spring is a nitrogen spring, the nitrogen spring is fixed on the upper die base, and the upper end face of the cutter is connected with a plunger rod of the nitrogen spring.

4. The slitting and stretching compound die for the battery case according to claim 1, wherein: the limiting part and the body part are of an integral structure.

5. The slitting and stretching compound die for the battery case according to claim 1, wherein: and a guide sleeve guide pillar assembly is arranged between the upper die holder and the lower die holder.