CN213793771U - Do benefit to fashioned stamping die of auto parts - Google Patents

Abstract

The utility model provides a stamping die beneficial to automobile part forming, comprising an upper die, a lower die and a plate, wherein the lower die comprises a blank holder and a punch, the punch is movably arranged in the blank holder, the blank holder and the upper die are mutually pressed to clamp the plate, and the punch is pressed with the upper die to punch and form the plate; the punching head is provided with a material cutting groove, the upper die is provided with a cutter corresponding to the material cutting groove, a material cutting area is formed in the area where the material cutting groove is located, the plate is cut off by the knife edge point of the cutter until the plate is contacted with the cutter in the punching process, and the drawing process is continued to complete part forming. The stamping die removes the local pulling stress of the plate in the drawing process to prevent the plate from being broken, simultaneously reduces the rebound effect when the part is unloaded, improves the processing efficiency and the part qualification rate, and reduces the processing cost.

Description

Do benefit to fashioned stamping die of auto parts

Technical Field

The utility model relates to a machining field, more specifically relates to a do benefit to fashioned stamping die of auto parts.

Background

The stamping is a forming method of applying external force to plates, strips, pipes, profiles and the like by a stress machine and a die to cause plastic deformation or separation, thereby obtaining workpieces with required shapes and sizes. The sheet material is directly deformed by a deformation force in a die by the power of conventional or special stamping equipment during stamping processing, so that a production technology of a product part with certain shape, size and performance is obtained, and the stamping processing is divided into cold stamping and hot stamping.

At present, most of automobile part production work, especially the production and manufacturing work of sheet metal parts, widely uses cold stamping technology. However, in the process of pressing down the drawing die, the drawing stress in a local range is obviously increased due to the fact that the geometric shape and the overall dimension of the plate are suddenly changed, when the drawing depth is deep, the plate is easy to break, a die complementary forming process needs to be added, and the workload and the cost are increased; in addition, because the influence of stress, when unloading to the part, the phenomenon that kick-backs can appear, and the shape of part can appear changing, and is inconsistent with the form under the original mould closed condition, not only can lead to auto parts specification and dimension qualification rate to reduce like this, can influence the matching condition of spare part and vehicle simultaneously.

Disclosure of Invention

An object of the utility model is to provide a do benefit to fashioned stamping die of auto parts, wherein, stamping die pulls stress through the excision sheet material in order to get rid of the part for panel can not break off at the drawing in-process, only needs the one-time process just can accomplish the part shaping smoothly, has improved the efficiency of processing, has reduced the processing cost.

Another object of the utility model is to provide a do benefit to fashioned stamping die of auto parts, wherein, stamping die has effectively lightened the resilience effect when the part is unloaded, prevents that the part from taking place too big deformation because of the resilience phenomenon, has improved part specification and dimension's qualification rate.

Another object of the utility model is to provide a do benefit to fashioned stamping die of auto parts, wherein, stamping die simple structure, convenient operation has high practicality.

In order to achieve at least one purpose, the utility model provides a do benefit to stamping die of auto parts shaping, it includes upper die, lower mould and panel, wherein, the lower mould includes blank holder and drift, the drift is mobilizable to be set up in the blank holder, the blank holder with the mutual pressfitting of upper die is in order to with the panel centre gripping, the drift with the pressfitting of upper die is in order to with panel stamping forming; the punching head is provided with a material cutting groove, the upper die is provided with a cutter corresponding to the material cutting groove, a material cutting area is formed in the area of the material cutting groove, and the edge of the knife of the cutter is cut off when the plate is in contact with the cutter in the punching process.

In one embodiment, the upper die is provided with a cavity, and the punch is provided with a forming surface corresponding to the cavity; the upper die and the blank holder clamp the plate and then move downwards to a drawing and die assembly state, and the forming surface is pressed with the inner surface of the cavity to punch and form the plate.

In one embodiment, the cutter is arranged in the cavity, and the material cutting groove is arranged on the forming surface.

In one embodiment, the stamping die is provided with two mutually symmetrical blanking areas.

In one embodiment, the stamping die further comprises a positioning assembly, the positioning assembly comprises a positioning block arranged on the upper die and a positioning groove arranged on the blank holder and corresponding to the positioning block, and when the blank holder is pressed against the upper die, the positioning block is clamped in the positioning groove.

In one embodiment, the positioning assemblies are arranged along the circumferential direction of the plate material.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the appended claims.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the invention, taken in conjunction with the accompanying drawings of which:

fig. 1 illustrates a drawing and clamping state schematic diagram of a stamping die for forming automobile parts according to an embodiment of the application.

Fig. 2 is a schematic view illustrating an open state of an automobile part after molding according to an embodiment of the application. In the figure:

1-a stamping die; 10-upper mould; 20-lower die; 30-a plate material; 40-a positioning assembly; 11-a cutter; 21-blank holder; 22-a punch; 23-a material cutting groove; 41-a positioning block; 42-positioning grooves; 100-a cavity; 220-molding surface; 230-blanking zone.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present application are provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

While ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used only to distinguish one element from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present inventive concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

As shown in fig. 1 and 2, the stamping die 1 for facilitating the forming of the automobile part comprises an upper die 10, a lower die 20 and a sheet material 30, wherein the lower die 20 comprises a blank holder 21 and a punch 22, the punch 22 is movably arranged in the blank holder 21, and the blank holder 21 and the upper die 20 are pressed together to clamp the sheet material 30; specifically, as shown in fig. 1, the upper die 10 is provided with a cavity 100, and the punch 22 is provided with a molding surface 220 corresponding to the cavity 100; the upper die 10 and the blank holder 21 clamp the plate 30 and then move downwards to a drawing and die assembly state, and the forming surface 220 is pressed with the inner surface of the cavity 100 to punch and form the plate 30.

More specifically, a cutting groove 23 is formed in the forming surface 220 of the punch 22, a cutter 11 corresponding to the cutting groove 23 is arranged in the cavity 100 of the upper die 10, a cutting area 230 is formed in an area where the cutting groove 23 is located, when the plate 30 contacts the cutter 11 in the punching process, a blade point of the cutter 11 cuts the plate located in the cutting area 230 and extends into the cutting groove 23, and the cut plate continues to be filled into the cutting area 230 to complete the forming process of the part.

Meanwhile, due to the effect of stress, the part can rebound when being unloaded in the conventional stamping process, the shape and the size of the part are greatly deformed, the qualified rate of the specification and the size of the automobile part is reduced, and meanwhile the matching condition of the part and a vehicle can be influenced.

As shown in fig. 2, the stamping die 1 is provided with two symmetrical blanking areas 230, and it should be understood by those skilled in the art that the number and position of the blanking areas 230 may be set according to the structure of a specific part, and are not intended to limit the present application.

Further, stamping die 1 still includes locating component 40, locating component 40 including set up in go up the locating piece 41 of mould 10, and set up in on blank holder 21 and with the corresponding constant head tank 42 of locating piece 41, work as blank holder 21 with it is fashionable to go up the mould 10, locating piece 41 joint in the constant head tank 42, through setting up locating component 40 makes stamping die 1 compound die is more convenient, the location is more accurate, also makes the size and the specification of part more accurate simultaneously. Further, as shown in fig. 2, the positioning assemblies 40 are arranged along the circumferential direction of the punch 22, so that the positioning effect of clamping the stamping die 1 is further improved.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims (6)

1. The stamping die is characterized by comprising an upper die, a lower die and a plate, wherein the lower die comprises a blank holder and a punch, the punch is movably arranged in the blank holder, the blank holder and the upper die are pressed together to clamp the plate, and the punch and the upper die are pressed together to punch the plate;

the punching head is provided with a material cutting groove, the upper die is provided with a cutter corresponding to the material cutting groove, a material cutting area is formed in the area of the material cutting groove, and the edge of the knife of the cutter is cut off when the plate is in contact with the cutter in the punching process.

2. The stamping die beneficial to forming of automobile parts as claimed in claim 1, wherein the upper die is provided with a cavity, and the punch is provided with a forming surface corresponding to the cavity; the upper die and the blank holder clamp the plate and then move downwards to a drawing and die assembly state, and the forming surface is pressed with the inner surface of the cavity to punch and form the plate.

3. The stamping die for forming automobile parts as claimed in claim 2, wherein the cutter is disposed in the cavity, and the blanking groove is disposed on the forming surface.

4. The stamping die for forming automobile parts as claimed in claim 1, wherein the stamping die is provided with two symmetrical blanking areas.

5. The stamping die for forming automobile parts as claimed in claim 1, wherein the stamping die further comprises a positioning assembly, the positioning assembly comprises a positioning block arranged on the upper die and a positioning groove arranged on the blank holder and corresponding to the positioning block, and when the blank holder is pressed against the upper die, the positioning block is clamped in the positioning groove.

6. The stamping die for facilitating forming of automobile parts as claimed in claim 5, wherein the positioning assemblies are arranged along the circumferential direction of the punch.

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