CN109248963A - Tensile mould side cut structure of transmission of power battery shell - Google Patents

Abstract

The invention discloses a trimming structure of a transmission drawing die of a power battery shell, which comprises an upper die part and a lower die part, wherein the upper die part is fixedly provided with a die handle, a punch fixing plate, a punch, a positioning chip, a small discharging block and a discharging frame from top to bottom in sequence; the punch fixing plate, the punch and the positioning chip are connected with the upper die base through the die shank; the shearing female die is arranged above the sliding seat, the shearing female die and the sliding seat are provided with a connected internal cavity, the lower end of a shearing female die ejector rod is connected with an ejector rod, the ejector rod is arranged in the internal cavity, the cover plate is arranged above the lower base plate, and the guide rail arranged in the lower base plate is managed. The technical scheme provided by the invention not only can enable the product process to achieve higher quality and improve the benefit, but also can effectively reduce the generation of defective products while improving the production efficiency, thereby bringing stronger competitiveness.

Description

A transfer stretching die trimming structure for a power battery shell

technical field

The embodiments of the present invention relate to the technical field of molds, and in particular, to an edge-cutting structure of a transfer stretching mold for a power battery case.

Background technique

At present, in the manufacturing process of new energy power battery shell, stamping and drawing 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 mold design and manufacturing. The level of mold design and manufacturing technology is one of the important indicators to measure the level of a country's product manufacturing, and to a large extent determines the quality, efficiency and development capabilities of new 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 subjected to composite stretching and blanking, stretching and forming, and scrap cutting to finally obtain qualified products. However, the end surfaces of the products often cut out by the original trimming structure are often irregular and not bright enough, and there are often aluminum scraps left. As a result, it is impossible to guarantee the yield, efficiency and benefit of the aluminum shell products.

SUMMARY OF THE INVENTION

The present invention provides a transfer stretching die trimming structure for a power battery shell, so as to solve the deficiencies of the prior art.

To achieve the above object, the present invention provides the following technical solutions:

A transmission stretching die trimming structure for a power battery shell, 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 upper die part in the process of pressing down the upper die part. The product to be processed moves back and forth, left and right, the upper die part is fixed with a die handle, a punch fixing plate, a punch, a positioning chip, a small unloading block and an unloading rack in order from top to bottom, and the lower die part is from the bottom. A lower backing plate, a cover plate, a sliding seat, a shearing die and a shearing die ejector are fixed and arranged in sequence upwards; wherein,

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

The shearing die is arranged above the sliding seat, the shearing die and the sliding seat have a connected inner cavity, and a top rod is connected to the lower end of the top rod of the shearing die, and the top rod is The cover plate is arranged in the inner cavity, and the cover plate is arranged above the lower backing plate and manages the guide rails arranged in the lower backing plate.

Further, the transmission and drawing die trimming structure of the power battery case also includes a guide assembly;

The upper mold part and the lower mold part are aligned and guided for mold clamping through the guide assembly.

Further, in the edge-cutting structure of the power battery case of the transfer drawing die, there are two guide assemblies, and the two guide assemblies are symmetrically arranged on both sides of the lower die 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 formed at the center of the base, and the guide column is fixedly arranged in the blind hole. Inside.

Further, in the edge trimming structure of the transmission stretching die of the power battery shell, through holes are formed on both sides of the unloading rack corresponding to the guide column;

The guide post is adapted to the through hole and passes through the through hole.

Further, in the edge trimming structure of the power battery case transmission stretching die, a plurality of limiting convex grooves are arranged on the inner side of the guide rail, and the position of the limiting convex grooves is the edge trimming point of the product to be processed.

Further, in the edge-cutting structure of the power battery case transmission stretching die, two limit protrusions are symmetrically arranged on the outer side of the sliding seat, and the shape of the limit protrusions corresponds to the shape of the limit grooves. shape.

Compared with the prior art, the present invention has the following beneficial effects:

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

2. Effectively avoid the phenomenon of rough product section, messy aluminum chips, short service life of sliding seat and guide rail in the process of stamping and trimming when the traditional method is used for edge trimming;

3. Make the surrounding of the machine tool and the workshop more tidy (a lot of aluminum scraps are blown away after the traditional trimming structure is trimmed), which greatly improves the working environment of the operators and effectively reduces the damage to the environment caused by the traditional trimming method. ;

4. It reduces the maintenance times of sticky aluminum chips and die cutting edges, improves production efficiency and effectively reduces the generation of defective products, thus bringing about stronger competitiveness.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces 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 are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a transmission stretching die trimming structure of a power battery case provided in Embodiment 1 of the present invention;

FIG. 2 is a schematic diagram of the path of the edge-cutting guide rail in the first embodiment of the present invention.

Reference number:

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

Detailed ways

In order to make the purposes, features and advantages of the present invention more obvious and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the following description The embodiments described above are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

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

In addition, the terms "long", "short", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention, rather than indicating or implying the referred device. Or the original must have this specific orientation and operate in a specific orientation configuration, which should not be construed as a limitation of the present invention.

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Example 1

Referring to Figures 1-2, an embodiment of the present invention provides a power battery case transmission stretching die trimming structure, including an upper die part and a lower die part, the upper die part moves vertically up and down, and the lower die part During the pressing process of the upper mold part, the product to be processed is driven to move back and forth, left and right, and the upper mold part is sequentially fixed with a mold handle 1, a punch fixing plate 2, a punch 3, a positioning chip 4, Small unloading block 5 and unloading rack 6, the lower mold part is fixedly arranged with a lower backing plate 12, a cover plate 10, a sliding seat 9, a shearing die 8 and a shearing die ejector rod 7 from bottom to top. ;in,

The punch 3 fixing plate 2, the punch 3 and the positioning chip 4 are connected to the upper die seat 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 ejector pin 7 is connected with a ejector pin 11. The ejector rod 11 is arranged in the inner cavity, the cover plate 10 is arranged above the lower pad 12 , and controls the guide rails 13 arranged in the lower pad 12 .

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

The upper mold part and the lower mold part are aligned and guided for mold clamping through the guide assembly.

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

Preferably, the guide assembly includes a guide column and a base, a blind hole is formed in 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 post is adapted to the through hole and passes through the through hole.

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

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

In order to more clearly show the implementation process of the technical solution provided by the present invention, a specific example is now introduced in detail:

The manipulator transfers the aluminum shell (battery shell) of the previous process to just above the shearing die 8 of the lower die part, and the shearing die ejector 7 is supported on the center surface, and the punch slide is carried with the upper die. Part of the downward movement, the positioning chip 4 first enters the aluminum shell for positioning, the aluminum shell is initially guided through the positioning chip 4, and the upper mold part continues downward, and the aluminum shell is pushed into the cavity of the shearing die 8, and the downward movement reaches a certain level. Height, the ejector rod 11 begins to function, resisting the shearing die 8, at this time the sliding seat 9 begins to function and moves, and the sliding seat 9 drives the shearing die 8 and the aluminum shell inside to move (at this time the punch 3 Fixed) to the edge trimming point of the first knife, and trimming the small surface guide rail A; the upper mold part continues to move downward to the edge cutting point of the second knife, and at this time the small surface guide rail B is cut off; the upper mold part Continue to descend, the sliding seat 9 is squeezed and moved to the edge trimming point of the third knife, and the large surface guide rail D is cut off for the first time; the upper die part continues to descend, and the sliding seat 9 is squeezed and moved to the fourth knife edge cutting At the point, the large surface guide C is cut off for the first time; the upper die part continues to descend, the sliding seat 9 is squeezed and moved to the cutting edge point of the fifth knife, and the large surface guide D is finished for the second fine cutting; the upper die part continues Down, the sliding seat 9 is squeezed and moved to the cutting edge of the 6th knife, and the second precision cutting of the large-surface guide rail C is completed; Under the action of the elastic force of the rod 7 and the lower mold, the aluminum shell is pushed 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 clamp block clamps the pulled aluminum shell, and the upper mold part continues When it goes up, when it goes up to a certain height, the unloading block immediately peels off the aluminum shell from the punch 3 of the upper die part to complete the unloading of the aluminum shell. At this time, the aluminum shell is just in the center of the lower die plane, and the entire 6-knife trimming action is completed. After that, the punch slide back to the top dead center, waiting to be transferred to the next step.

The embodiment of the present invention provides a transfer stretching die trimming structure for a power battery case, which can enable the product process to achieve higher quality and improve benefits; Rough section, messy aluminum shavings, short service life of sliding seat and guide rail; it can make the surrounding of the machine tool and the workshop more tidy, greatly improve the working environment of operators, and effectively reduce the damage to the environment caused by traditional trimming methods; and It also reduces the maintenance times of sticky aluminum chips and die cutting edges, improves production efficiency and effectively reduces the generation of defective products, thus bringing about stronger competitiveness.

As mentioned above, the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand: The technical solutions described in the embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (7)

1. The trimming structure of the transmission drawing die of the power battery shell is characterized by comprising an upper die part and a lower die part, wherein the upper die part vertically moves up and down, the lower die part drives a product to be processed to move front and back and left and right in the process of pressing down the upper die part, the upper die part is fixedly provided with a die handle, a punch fixing plate, a punch, a positioning chip, a small discharging block and a discharging frame from top to bottom in sequence, and the lower die part is fixedly provided with a lower base plate, a cover plate, a sliding seat, a shearing female die and a shearing female die ejector rod from bottom to top in sequence; wherein,

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

the shearing die is arranged above the sliding seat, the shearing die and the sliding seat are provided with a connected internal cavity, the lower end of the shearing die ejector rod is connected with an ejector rod, the ejector rod is arranged in the internal cavity, the cover plate is arranged above the lower base plate, and the guide rail in the lower base plate is controlled to be arranged.

2. The transfer stretch die trim structure for power battery cases of claim 1 further comprising a guide assembly;

and the upper die part and the lower die part are aligned and guided to be matched through the guide assembly.

3. The transfer drawing die trimming structure for power battery cases according to claim 2, wherein the number of the guide assemblies is two, and the two guide assemblies are symmetrically disposed on both sides of the lower die portion.

4. The trimming structure of the transmitting drawing die for the power battery shell according to claim 3, wherein the guide assembly comprises a guide post and a base, a blind hole is formed in the center of the base, and the guide post is fixedly arranged in the blind hole.

5. The trimming structure of the transmitting drawing die for the power battery shell according to claim 4, wherein through holes are formed in the discharging frame corresponding to both sides of the guide post;

the guide post is matched with the through hole and penetrates through the through hole.

6. The transfer stretching die trimming structure of a power battery shell according to claim 1, wherein a plurality of limiting convex grooves are arranged on the inner side of the guide rail, and the positions of the limiting convex grooves are trimming points of a product to be processed.

7. The trimming structure of a transferring and stretching die for power battery shells as defined in claim 6, wherein two limiting protrusions are symmetrically arranged on the outer side of the sliding seat, and the shape of the limiting protrusions corresponds to the shape of the limiting grooves.