CN209379757U - A transfer stretching die trimming structure for a power battery case - Google Patents

Abstract

The utility model discloses a kind of transmitting drawing die trimming structures of power battery shell, including part of the upper die and part of the lower die, part of the upper die is successively fixedly installed die shank, punch fixing plate, formed punch, positioning chip, small unloading block and unloading rack from top to down, and part of the lower die is successively fixedly installed lower bolster, cover board, sliding seat, shearing cavity plate and shearing die-pin from bottom to top；Wherein, punch fixing plate, formed punch and positioning chip are connect by die shank with upper die holder；The top of sliding seat is arranged in shearing cavity plate, shearing cavity plate and sliding seat has the internal cavity of connection, and the lower end for shearing die-pin is connected with a mandril, and mandril is arranged in internal cavity, the top of lower bolster is arranged in cover board, and keeps a grip on the guide rail being arranged in lower bolster.Technical solution provided by the utility model can not only enable Product Process to reach higher quality, improve benefit, and still effectively reduce the generation of defective products while improving the production efficiency, to bring stronger competitiveness.

Description

A transfer stretching die trimming structure for a power battery case

technical field

The embodiment of the utility model relates to the technical field of moulds, in particular to a trimming structure of a transfer stretching mold for a power battery case.

Background technique

At present, in the manufacturing process of new energy power battery cases, stamping and stretching is an indispensable process equipment for stamping production, and it is a technology-intensive product. The quality, production efficiency and production cost of stamping parts are directly related to the design and manufacture of molds. The level of mold design and manufacturing technology is one of the important symbols to measure the level of a country's product manufacturing, which largely determines the quality, efficiency and new product development capabilities of products. The battery case stamping die is a tool for stamping and forming made of metal and other steel materials, which includes a composite die, a drawing die, and a trimming die structure. During the working process, the strips are cut by compound stretching, stretched and formed, and the scraps are cut to finally obtain qualified products. However, the end faces of the products that are often cut out of the original trimming structure are not neat, not bright enough, and aluminum scraps often remain. As a result, the yield, efficiency and benefit of the aluminum shell products cannot be guaranteed.

Utility model content

The utility model provides a transfer stretching die trimming structure of a power battery case to solve the deficiencies in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions:

A transfer stretching die trimming structure for a power battery case, comprising an upper die part and a lower die part, the upper die part moves vertically up and down, and the lower die part drives The product to be processed moves back and forth, left and right, and the upper mold part is fixedly provided with a mold handle, a punch fixing plate, a punch, a positioning chip, a small discharge block and a discharge rack from top to bottom. A lower backing plate, a cover plate, a sliding seat, a shearing die, and a shearing die ejector pin are fixedly arranged upwards in sequence; wherein,

The punch fixing plate, the punch and the positioning chip are connected to the upper die base through the die handle;

The shearing die is arranged above the sliding seat, the shearing die and the sliding seat have a connected internal cavity, and the lower end of the ejector rod of the shearing die is connected with a ejector rod, and the ejector rod Arranged in the inner cavity, the cover plate is arranged above the lower backing plate, and tubes the guide rails arranged in the lower backing plate.

Further, the transfer stretching die trimming structure of the power battery case also includes a guide assembly;

The upper mold part and the lower mold part are guided and mold-closed through the guide assembly.

Further, in the trimming structure of the transfer stretching mold of the power battery case, there are two guide assemblies, and the two guide assemblies are symmetrically arranged on both sides of the lower mold part.

Further, in the edge trimming structure of the power battery case, the guide assembly includes a guide column and a base, a blind hole is opened in the center of the base, and the guide column is fixedly arranged in the blind hole Inside.

Further, in the trimming structure of the transfer stretching die of the power battery case, the unloading frame is provided with through holes corresponding to both sides of the guide column;

The guide column fits with the through hole and passes through the through hole.

Further, in the trimming structure of the transfer stretching die of the power battery case, several limiting convex grooves are provided on the inner side of the guide rail, and the position of the limiting convex grooves is the trimming point of the product to be processed.

Further, in the trimming structure of the transfer stretching die of the power battery case, two limiting protrusions are arranged symmetrically on the outer side of the sliding seat, and the shape of the limiting protrusions corresponds to that of the limiting groove. shape.

Compared with the prior art, the utility model has the following beneficial effects:

1. The product process can achieve higher quality and improve efficiency;

2. It effectively avoids the phenomenon of rough cross-section, messy aluminum chips, and short service life of sliding seats and guide rails during the stamping and trimming process of the product in the traditional method of edge trimming;

3. Make the periphery of the machine tool and the workshop more tidy (a lot of aluminum chips are blown away everywhere after the traditional trimming structure), greatly improving the working environment of the operators, and effectively reducing the damage to the environment caused by the traditional trimming method ;

4. Reduce the maintenance times of sticking aluminum chips and mold edges, improve production efficiency and effectively reduce the generation of defective products, thus bringing stronger competitiveness.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is a structural schematic diagram of a transfer stretching die trimming structure of a power battery case provided by Embodiment 1 of the utility model;

Fig. 2 is a schematic diagram of the path of the trimming guide rail in Embodiment 1 of the present utility model.

Reference signs:

Die handle 1, punch fixing plate 2, punch 3, positioning chip 4, small unloading block 5, unloading frame 6, shearing die ejector pin 7, shearing die 8, sliding seat 9, cover plate 10 , Push rod 11, lower backing plate 12, guide rail 13.

Detailed ways

In order to make the purpose, features and advantages of the present utility model more obvious and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, The embodiments described below are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present invention, it is to be understood that when a component is said to be "connected" to another component, it may be directly connected to the other component or there may be an intervening component at the same time. When a component is said to be "set on" another component, it can be set directly on another component or there may be a centered component at the same time.

In addition, the terms "long", "short", "inner", "outer", etc. indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model, rather than indicating or implying It is not to be construed as a limitation of the present invention that a device or element must have this particular orientation and operate in a particular orientation configuration.

The technical scheme of the utility model will be further described below in conjunction with the accompanying drawings and through specific embodiments.

Embodiment one

Please refer to Figure 1-2, the embodiment of the utility model provides a transfer stretching die trimming structure for a power battery case, including an upper mold part and a lower mold part, the upper mold part moves vertically up and down, and the lower mold part Partly drives the product to be processed to move back and forth, left and right during the process of pressing down the upper die part. The upper die part is fixedly provided with a die handle 1, a punch fixing plate 2, a punch 3, and a positioning chip 4 in sequence from top to bottom. , a small unloading block 5 and an unloading frame 6, the lower mold part is fixedly provided with a lower backing plate 12, a cover plate 10, a sliding seat 9, a shearing die 8 and a shearing die ejector pin from bottom to top 7; among them,

The punch 3 fixing plate 2, the punch 3 and the positioning chip 4 are connected with the upper die base through the die handle 1;

The shearing die 8 is arranged above the sliding seat 9, the shearing die 8 and the sliding seat 9 have a connected internal cavity, and the lower end of the shearing die push rod 7 is connected with a push rod 11 , the ejector pin 11 is set in the inner cavity, the cover plate 10 is set above the lower backing plate 12 , and guides the guide rail 13 set in the lower backing plate 12 .

In this embodiment, preferably, a guide assembly is also included;

The upper mold part and the lower mold part are guided and mold-closed through the guide assembly.

Preferably, there are two guide assemblies, and the two guide assemblies are arranged symmetrically on both sides of the lower mold part.

Preferably, the guide assembly includes a guide column and a base, a blind hole is opened at the center of the base, and the guide column is fixedly arranged in the blind hole.

Preferably, the unloading rack 6 is provided with through holes corresponding to both sides of the guide column;

The guide column fits with the through hole and passes through the through hole.

Preferably, the inner side of the guide rail 13 is provided with several limiting convex grooves, and the position of the limiting convex grooves is the trimming point of the product to be processed.

Preferably, two limiting protrusions are arranged symmetrically on the outer side of the sliding seat 9 , and the shape of the limiting protrusions corresponds to the shape of the limiting groove.

In order to show more clearly the realization process of the technical solution provided by the utility model, a detailed introduction is now given by giving a specific example:

The aluminum case (battery case) of the previous process is transferred by the manipulator directly above the shearing die 8 of the lower die part, and the ejector pin 7 of the shearing die is supported on the center surface, and the punch slider carries the upper die Part of the downward movement, the positioning chip 4 first enters the interior of the aluminum shell for positioning, the aluminum shell is initially guided by the positioning chip 4, the upper mold part continues downward, and the aluminum shell is pushed into the cavity of the shearing die 8, down to a certain height, the ejector rod 11 starts to play a role and withstands the shearing die 8. At this time, the sliding seat 9 starts to play a role and moves, and the sliding seat 9 drives the shearing die 8 and the aluminum shell inside (at this time, the punch 3 fixed) to the first edge trimming point, to trim the facet guide rail A; the upper mold part continues to move downward to the second knife edge trimming point, at this time the facet guide rail B is cut off; the upper die part Continue to go down, the sliding seat 9 is squeezed and moves to the third cutting edge point, and the large surface guide rail D is cut off for the first time; the upper mold part continues to descend, and the sliding seat 9 is squeezed and moves to the fourth cutting edge point, the large surface guide rail C is cut off for the first time; the upper die part continues to descend, and the sliding seat 9 moves to the fifth edge trimming point after being squeezed, and the large surface guide rail D is subjected to secondary precision cutting; the upper die part continues Downward, the sliding seat 9 is squeezed and moves to the 6th cutting edge point, and the second precision cutting of the large surface guide rail C is completed; when the punch slider reaches the bottom dead center, it will turn upwards, Under the action of the rod 7 and the elastic force of the lower mold, the aluminum shell is held against the aluminum shell and goes upward synchronously, and the aluminum shell is pushed out of the lower mold surface. When the upper mold part leaves the lower mold surface, the manipulator clamps the pulled aluminum shell, and the upper mold part continues Upward, when it reaches a certain height, the unloading block will immediately peel off the aluminum shell from the punch 3 of the upper die to complete the unloading of the aluminum shell. At this time, the aluminum shell is just at the center of the lower die plane, and the entire 6-knife trimming action is completed After that, the punch slider returns to the top dead center, waiting to be transferred to the next step.

The embodiment of the utility model provides a transfer stretching die trimming structure for the power battery shell, which can make the product process achieve higher quality and improve efficiency; effectively avoid the traditional way of trimming, the product is in the process of punching and trimming Rough cross-section of the product, messy aluminum scraps, and short service life of sliding seats and guide rails; it can make the periphery of the machine tool and the workshop more tidy, greatly improve the working environment of the operators, and effectively reduce the damage to the environment caused by the traditional edge trimming method; And it also reduces the maintenance times of sticking aluminum chips and mold edges, improves production efficiency, and effectively reduces the generation of defective products, thus bringing stronger competitiveness.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it still can Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present utility model .

Claims (7)

1. A transfer stretching die trimming structure for a power battery case, characterized in that it includes an upper die part and a lower die part, the upper die part moves vertically up and down, and the lower die part is in the upper die part In the process of pressing down, the product to be processed is driven to move back and forth, left and right, and the upper mold part is fixedly provided with a mold handle, a punch fixing plate, a punch, a positioning chip, a small discharge block and a discharge rack from top to bottom. The lower mold part is fixedly provided with a lower backing plate, a cover plate, a sliding seat, a shearing die and a shearing die ejector in sequence from bottom to top; wherein, The punch fixing plate, the punch and the positioning chip are connected to the upper die base through the die handle; The shearing die is arranged above the sliding seat, the shearing die and the sliding seat have a connected internal cavity, and the lower end of the ejector rod of the shearing die is connected with a ejector rod, and the ejector rod Arranged in the inner cavity, the cover plate is arranged above the lower backing plate, and tubes the guide rails arranged in the lower backing plate. 2. The transfer stretching die trimming structure of the power battery case according to claim 1, further comprising a guide assembly; The upper mold part and the lower mold part are guided and mold-closed through the guide assembly. 3. The trimming structure of the power battery case according to claim 2, characterized in that there are two guide assemblies, and the two guide assemblies are symmetrically arranged on both sides of the lower mold part . 4. The trimming structure of the power battery case according to claim 3, wherein the guide assembly includes a guide column and a base, a blind hole is opened at the center of the base, and the guide column fixedly arranged in the blind hole. 5. The transmission stretching die trimming structure of the power battery case according to claim 4, characterized in that, the unloading frame is provided with through holes corresponding to both sides of the guide column; The guide column fits with the through hole and passes through the through hole. 6. The transmission drawing die trimming structure of the power battery case according to claim 1, characterized in that, the inner side of the guide rail is provided with several limiting grooves, and the position of the limiting grooves is to be processed. The trimming point of the product. 7. The transfer stretching die trimming structure of the power battery case according to claim 6, characterized in that, two limiting protrusions are arranged symmetrically on the outer side of the sliding seat, and the shape of the limiting protrusions corresponds to The shape of the limiting groove.