CN111531040A

CN111531040A - Efficient stamping part flexible adjustment shaping die

Info

Publication number: CN111531040A
Application number: CN202010545452.3A
Authority: CN
Inventors: 王长土
Original assignee: Zhejiang Changhua Auto Parts Co ltd
Current assignee: Zhejiang Changhua Auto Parts Co ltd
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2020-08-14

Abstract

The invention provides a high-efficiency flexible adjustment and shaping die for stamping parts, which is used for shaping automobile stamping parts, and comprises an upper die holder, a fixed plate, a lower die holder, a lower pad foot and a lower supporting plate, wherein the upper die holder comprises an upper die shaping block; the fixing plate comprises a plate portion and a lower die shaping block, the plate portion comprises a through hole portion and a stepped portion, the lower die shaping block comprises a middle pressing portion and an edge shaping portion, the edge shaping portion is arranged on the stepped portion, the edge shaping portion comprises a plurality of profile blocks, each profile block comprises a base portion and a shaping block portion, and the shaping block portions are arranged on the base portions. The application is suitable for various stamping forming parts, can be suitable for engineering dies and progressive dies, saves die investment and improves enterprise benefits.

Description

Efficient stamping part flexible adjustment shaping die

Technical Field

The invention relates to a die, in particular to a high-efficiency flexible adjusting and shaping die for a stamping part in the production process of an automobile stamping part.

Background

With the development of science and technology, the technology is advanced and innovated, automobile products are changing day by day, higher technical requirements are also put forward on stamping parts and fastener products, and automobile sheet metal parts are an important field participating in globalization in the automobile industry in China.

In the manufacturing industry, stamping parts are widely applied, and particularly, as main components of automobile body parts, the stability of the shape and the size directly determines the accuracy of the automobile body and the comprehensive factors of the whole automobile. In the production process, the stamping part must be shaped, an automatic shaping die is needed by matching with the application of automatic stamping equipment, the prior art adopts a fixed shaping die process scheme, and the process has the defects that the shaping of the die is made into an integral profile, the shaping size requirement of the design requirement cannot be realized when the parts of the previous working procedure are unstable, and the adverse effect on the shape of the final part is particularly obvious.

Therefore, the reshaping die of the prior art stamping part has a lifting place.

Disclosure of Invention

Aiming at the defects, the invention provides an efficient flexible adjustment and shaping die for stamping parts, which is used for shaping various complex stamping parts by combining with automatic equipment so as to solve the prior technical problem.

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

a high-efficiency flexible adjustment and shaping die for stamping parts of automobiles is used for shaping the stamping parts of automobiles and comprises an upper die holder, a fixed plate, a lower die holder, a lower pad foot and a lower supporting plate, wherein the upper die holder comprises an upper die shaping block; the fixing plate comprises a plate portion and a lower die shaping block, the plate portion comprises a through hole portion and a stepped portion, the lower die shaping block comprises a middle pressing portion and an edge shaping portion, the edge shaping portion is arranged on the stepped portion, the edge shaping portion comprises a plurality of profile blocks, each profile block comprises a base portion and a shaping block portion, and the shaping block portions are arranged on the base portions.

Shaping mould of this application preferred embodiment, material portion is pressed in the middle of includes three movable blocks, three clearance blocks and a backing sheet, movable block, clearance block and backing sheet connect gradually, the mould still includes three resilient means, resilient means sets up backing sheet below is used for supporting and adjusting material portion is pressed in the middle of.

The shaping mould of the preferred embodiment of the application, middle pressing part still includes two float portions, float portion includes a float pin, the float pin sets up in middle pressing part.

In the shaping mold according to the preferred embodiment of the present application, the edge shaping portion further includes a plurality of spacers, and the spacers are disposed below the base portion and used for adjusting the height of the profile block.

The shaping mold according to the preferred embodiment of the present application, wherein the lower pad includes at least four pad pieces, the lower pad is connected to the lower supporting plate to form a receiving groove, and the elastic device is disposed in the receiving groove.

The design idea of the application is that a flexible adjusting and shaping die for stamping parts is designed, and the main purpose is to realize better correction and shaping on the size of the profile of an unstable working procedure part, realize the profile of a part required by design and make the appearance of the part beautiful; the mould adopts a multi-block profile, an integral profile is divided into a plurality of small blocks, the height of the profile block is changed by using a small block lower part pad or a drawing gasket and a small block profile fine adjustment mode, the mould is quickly adjusted when parts in different batches are unstable, the purpose of meeting the requirement of a certain tolerance on the part output is ensured, and the requirements of size and attractiveness are met.

Due to the adoption of the technical characteristics, compared with the prior art, the invention has the following advantages and positive effects:

the method has the advantages that flexible adjustment and shaping of the stamping part are achieved, and shaping optimization of the whole molded surface is achieved through adjustment of shaping block parts with different activities;

secondly, the shaping requirements of unstable working procedure pieces are met, and the flatness and the appearance of the parts are also considered;

and thirdly, the method is suitable for various stamping forming parts, can be suitable for both an engineering die and a progressive die, saves die investment and improves enterprise benefits.

Of course, it is not necessary for any particular embodiment of the inventive concept to be implemented to achieve all of the above technical effects at the same time.

Drawings

FIG. 1 is a schematic view of a reforming mold according to the present application;

FIG. 2 is a schematic view of a lower mold of the reforming mold of the present application;

FIG. 3 is a schematic view of a plate portion of a fixation plate of the present application;

FIG. 4 is an enlarged view of the portion of FIG. 2 without the intermediate nip;

FIG. 5 is a schematic view of an edge trimmer according to the present application;

FIG. 6 is a schematic view of the shaping edges of the present application;

FIG. 7 is a schematic view of a press deflection value prior to reforming according to the present application;

FIG. 8 is a schematic view of another embodiment of a profile block with a shim;

FIG. 9 is a schematic view of another embodiment of a profile block with a gasket;

FIG. 10 is a schematic view of an intermediate nip portion of the present application;

FIG. 11 is a schematic view of the elastic device of the present application;

FIG. 12 is a schematic view of a lower die holder of the present application.

Detailed Description

Several preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention is not limited to only these embodiments. The invention is intended to cover alternatives, modifications, equivalents, and alternatives that may be included within the spirit and scope of the invention. In the following description of the preferred embodiments of the present invention, specific details are set forth in order to provide a thorough understanding of the present invention, and it will be apparent to those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and so forth have not been described in detail so as not to unnecessarily obscure aspects of the present invention.

Referring to fig. 1, an efficient flexible adjustment shaping die for stamping parts is used for shaping automobile stamping parts, and the die includes an upper die holder 10, a fixing plate 20, a lower die holder 30, a lower pad 40, and a lower supporting plate 50, where the upper die holder 10 includes an upper shaping block (not shown), the upper and lower dies are formed in the same structure, and each movable profile block corresponds to one another, and in the embodiment of the present application, only the lower die is used to describe the structure of the present application; the fixing plate 20, the lower die holder 30, the lower foot pad 40 and the lower support plate 50 are connected in sequence.

Referring to fig. 2, the present embodiment is a dual-purpose module, and the dual-purpose structure and principle are the same, and only one is illustrated for convenience of description; the fixing plate 20 includes a plate portion 21 and a lower die-shaping block, referring to fig. 3, the plate portion 21 includes a through hole portion 211 and a stepped portion 212, the lower die-shaping block includes an intermediate swaged portion 22 and an edge-shaping portion 23, that is, the lower die-shaping block is divided into two parts, one part is the edge-shaping portion 23 for shaping, and the other part is the intermediate swaged portion 22 which does not need to be shaped, the edge-shaping portion 23 is provided on the stepped portion 212, the intermediate swaged portion 22 is provided on the through hole portion 211, referring to fig. 4, an inner edge surface of the edge-shaping portion 23 and an inner edge surface of the stepped portion 212 form a smooth surface, and the smooth surface and an outer edge surface of the intermediate swaged portion 22 are attached, so that the intermediate swaged portion 22 can be smoothly put into the edge-shaping portion 23; referring to fig. 5, the edge shaping portion 23 includes a plurality of profile blocks, as shown in the figure, in the embodiment of the present application, the number of the profile blocks is 10, but it is not limited to this application, and more or less profile blocks should be a protection scope of this application as long as the shaping purpose can be achieved, and in addition, in this embodiment, the profile of the stamping part is considered, so the profile blocks in the embodiment are different, the profile blocks include a base portion 231 and a shaping block portion 232, the shaping block portion 232 is disposed on the base portion 231, the base portion 231 is locked to the plate portion 21, the shaping block portion 232 is used for receiving the stamping part for shaping, and after assembly, the surface of the shaping block portion 232 is higher than the surface of the base portion 231.

Referring to fig. 6, a line 60 of the stamping part of the present application, which needs to be shaped, is drawn in this example, and this line 60 is a part edge that is related to a part that requires shaping, referring to fig. 7, the deviation values measured at each point after stamping of the stamping part in this example are 4.09 at the position a, 4.77 at the position B, which is too far away from the requirement; as described above, the flexible adjustment and shaping of the stamping part are realized, and the shaping optimization of the whole profile is realized by adjusting profile blocks with different activities, wherein the flexible adjustment is to adjust the heights of the profile blocks with different deviation values, namely to adjust the heights of the shaping block parts 232, the height is reduced when the deviation value is a negative value, the height is increased when the deviation value is a positive value, and the height of the shaping surface is not designed according to the size of the drawing. As shown in fig. 5, in this embodiment, the height of the profile block is changed by adopting a profile fine adjustment mode, that is, the height of the shaping block portion 232 is adjusted, so that the purpose of quickly adjusting the die when parts in different batches are unstable is achieved, and a certain tolerance requirement of the discharged part is met, after the die is punched, the deviation value of the same position is 0.8 to-1.47, so that the requirement is met, and the requirement of size and beauty is met.

Referring to fig. 8 and 9, in another embodiment of the present application, the edge shaping portion 23 further includes a plurality of spacers 70, the spacers 70 are disposed below the base portion 231, and are used for adjusting the height of the profile block, i.e. adjusting the height of the shaping block portion 232, decreasing the height when the deviation value is negative, increasing the height when the deviation value is positive, and changing the height of the profile block by inserting or pulling out the spacers 70, so as to achieve the purpose of rapidly adjusting the mold when the parts in different batches are unstable, and ensure that the parts are discharged to meet the requirement of a certain tolerance, so as to meet the requirement of both size and beauty, referring to fig. 5, and referring to the deviation value of fig. 7, in this embodiment, the profile block (233, 234) at the position with the highest deviation of 4.09 and the lowest deviation of-4.77 is selected for the material stamping part to be flexibly adjusted and shaped by the spacers 70, for example, the number of the original pads 70 is two, as shown in fig. 8, the lower surface of the profile block 233 is padded with more pads and one pad is broken into three pads, as shown in fig. 9, the lower surface of the profile block 234 is padded with less pads and one pad, and the number of the original pads 70 is only used for explaining the present application and is not used for limiting the present application, for example, the thickness of the pads 70 is made thinner, and the number of the original pads is more than one point, for example, five pads, so that the number of the pads 70 which are padded or pulled out during the adjustment can be more flexible.

Next, describing the intermediate pressing portion 22, please refer to fig. 10 and 11, where the intermediate pressing portion 22 includes three movable blocks 221, three gap blocks 222 and a supporting plate 223, the movable blocks 221, the gap blocks 222 and the supporting plate 223 are sequentially connected, the mold further includes three elastic devices 80, the elastic devices 80 are disposed below the supporting plate 223 and are used for supporting and adjusting the intermediate pressing portion 22, please refer to fig. 12, a lower mold through hole 31 is formed in a position of the lower mold base 30 corresponding to the elastic device 80, the elastic device 80 is connected to the supporting plate 223 through the lower mold through hole 31, the lower mold through hole 31 serves to limit the elastic device 80, so that the elastic device 80 can be vertically connected to the supporting plate 223, in an embodiment of the present application, the elastic device 80 is a nitrogen spring. As shown in fig. 10, the intermediate pressing portion 22 further includes two floating portions, the floating portion includes a floating pin 224, the floating pin 224 is disposed in the intermediate pressing portion 22, in the figure, the floating pin 224 is disposed in the upper and lower through holes of the intermediate pressing portion 22, after the shaping process is completed, the floating pin 224 extends out of the intermediate pressing portion 22 to eject the shaped stamped part, so as to facilitate entering the next process.

In addition, the lower foot pad 40 includes at least four foot pad pieces, the lower foot pad 40 is connected to the lower supporting plate 50 to form a containing groove, the elastic device 80 is disposed in the containing groove, in the embodiment of the present invention, as shown in fig. 11, the lower foot pad 40 includes eight foot pad pieces to form five containing grooves, and the elastic device 80 is disposed in the containing groove corresponding to the intermediate pressing portion 22.

The application consists of a plurality of molded blocks and a shaping process, and the design principle is as follows: the shaped integral profile is divided into two major parts, namely a middle part and an edge part. Firstly, the middle part of a part is used as a material pressing area, three movable blocks 221 are spliced to press the part, ten movable small blocks are used for forming a circle of profile blocks with adjustable height at the edge part of the part, the upper die and the lower die are in the same structure, each movable profile block corresponds to each other one by one, and more splicing blocks can be arranged for more complicated shaping; when shaping, the gaps between the movable profile blocks of the upper die and the lower die at each position are adjusted to be consistent, the original lower upward adjustment shaping and the higher downward adjustment shaping are performed, and finally the profile required by the whole digital-analog is formed to be within a tolerance range, so that the situation that the original integral profile shaping cannot adjust the arching or collapse of parts is avoided, the profile is in place in size, and the shape is attractive.

In summary, due to the adoption of the technical characteristics, compared with the prior art, the invention has the following advantages and positive effects:

The preferred embodiments of the invention are provided solely to aid in the illustration of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents. The above disclosure 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 it is intended that all equivalent variations and modifications of the present invention as those skilled in the art can be made without departing from the spirit and scope of the present invention.

Claims

1. A high-efficiency flexible adjustment and shaping die for stamping parts of automobiles is characterized in that the die comprises an upper die holder, a fixing plate, a lower die holder, a lower pad and a lower supporting plate, wherein the upper die holder comprises an upper die shaping block; the fixing plate comprises a plate portion and a lower die shaping block, the plate portion comprises a through hole portion and a stepped portion, the lower die shaping block comprises a middle pressing portion and an edge shaping portion, the edge shaping portion is arranged on the stepped portion, the edge shaping portion comprises a plurality of profile blocks, each profile block comprises a base portion and a shaping block portion, and the shaping block portions are arranged on the base portions.

2. The shaping die of claim 1, wherein the intermediate nip comprises three movable blocks, three gap blocks and a support plate, the movable blocks, the gap blocks and the support plate being connected in sequence, the die further comprising three elastic means, the elastic means being disposed below the support plate for supporting and adjusting the intermediate nip.

3. The reforming mold defined in claim 2, wherein the intermediate nip further comprises two float sections, the float sections comprising a float pin, the float pin being disposed in the intermediate nip.

4. The shaping die as set forth in claim 3 wherein said edge shaping portion further comprises a plurality of shims disposed below said base portion for adjusting the height of said profile block.

5. The form tool of claim 4, wherein the bottom pad includes at least four pad pieces, the bottom pad is connected to the bottom plate to form a receiving groove, and the elastic device is disposed in the receiving groove.