CN203124552U

CN203124552U - Die assembly for secondary drawing of automobile front floors

Info

Publication number: CN203124552U
Application number: CN 201320091924
Authority: CN
Inventors: 杜军
Original assignee: Many Auto Parts And Components Of Shanghai Xin Penglian Co Ltd
Current assignee: Many Auto Parts And Components Of Shanghai Xin Penglian Co Ltd
Priority date: 2013-02-28
Filing date: 2013-02-28
Publication date: 2013-08-14
Anticipated expiration: 2023-02-28

Abstract

The utility model relates to the field of the manufacturing technique of automobile floor parts, in particular to a die assembly for secondary drawing of automobile front floors. The die assembly comprises an upper female die for primary drawing, a lower male die for primary drawing, a first blank holder arranged on the lower male die for primary drawing, an upper female die for secondary drawing, a lower male die for secondary drawing and a second blank holder arranged on the lower male die for secondary drawing. The die assembly is characterized in that an accommodating groove is arranged at a position of the upper die for primary drawing, which corresponds to the highest position of a part to be drawn. By means of the design, the machining room is reserved in primary drawing, dies for secondary drawing are developed for secondary drawing, and the problem that large-size deep-drawn parts crack when drawn by existing primary drawing dies is solved.

Description

A kind of die assembly for the automobile front floor secondary drawing

Technical field

The utility model relates to automotive floor panel part production technology field, is specially a kind of manufacturing process of automobile front floor secondary drawing.

Background technology

At present, there is the cracking risk in the automotive floor panel part and can't effectively optimizes in a drawing die, and there is the problem of cracking easily in the especially sharp-pointed fillet place of large-scale deep-drawing part.

The utility model content

The purpose of this utility model is, a kind of secondary drawing technology for large-scale deep-draw plates such as large-scale deep-drawing punching parts especially automobile front floor is provided, to overcome the problem that there is easy cracking in the especially sharp-pointed fillet place of large-scale deep-drawing part.

In order to achieve the above object, the utility model is achieved in that

A kind of die assembly for the automobile front floor secondary drawing, it comprises once draws with the top die, once draws with the bottom punch and be located at first blank holder that once draws with on the bottom punch; Secondary drawing with top die, secondary drawing with the bottom punch be located at secondary drawing with second blank holder on the punch of bottom; It is characterized in that: once draw with top die correspondence and wait that the highest point that draws part is provided with capaciting material groove.

The utility model adopts above-mentioned design, reserves processing leeway in a drawing die, and exploitation secondary drawing mould, carries out secondary drawing, solves drawing and moulding mould of tradition, large scale, deep-drawing is existed the problem of part cracking.

Description of drawings

Fig. 1 is the structural representation of a top die of the utility model.

Fig. 2 is the structural representation of the utility model secondary top die.

The specific embodiment

Below further specify the utility model by specific embodiment.

As shown in Figure 1 and Figure 2, a kind of die assembly for the automobile front floor secondary drawing, it comprises once draws with top die 1, once draws with the bottom punch and be located at first blank holder that once draws with on the bottom punch; Secondary drawing with top die 2, secondary drawing with the bottom punch be located at secondary drawing with second blank holder on the punch of bottom; It is characterized in that: once draw with top die 1 correspondence and wait that the highest point that draws part is provided with capaciting material groove 3.

It comprises a kind of secondary drawing method for the manufacture of automobile front floor:

Step 1, usefulness cae analysis software analysis parts modeling to be punched arrange capaciting material groove at the highest point that once draws with behind the top die correspondence forming parts;

Step 2, with once drawing with the top die, once drawing with the bottom punch and be located at once to draw with first blank holder on the punch of bottom material is carried out drawing the first time operation;

Step 3, inspection are once drawn post-job material and whether are formed reservation clout heap;

Step 4, with secondary drawing with the top die, secondary drawing is with the bottom punch and be located at secondary drawing and with second blank holder on the punch of bottom material carried out drawing the second time operation.

Claims

1. die assembly that is used for the automobile front floor secondary drawing, it comprises once draws with the top die, once draws with the bottom punch and be located at first blank holder that once draws on the punch of usefulness bottom; Secondary drawing with top die, secondary drawing with the bottom punch be located at secondary drawing with second blank holder on the punch of bottom; It is characterized in that: once draw with top die correspondence and wait that the highest point that draws part is provided with capaciting material groove.