CN213134731U

CN213134731U - Vehicle door outer plate flanging device

Info

Publication number: CN213134731U
Application number: CN202021729854.0U
Authority: CN
Inventors: 王建勇; 姚全来; 李睿; 牛丽贤; 李海鹏; 纵荣荣; 张娜
Original assignee: Tianjin Jinliyan Automotive Engineering & Technology Co ltd
Current assignee: Tianjin Jinliyan Automotive Engineering & Technology Co ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-05-07
Anticipated expiration: 2030-08-19

Abstract

The utility model discloses a door planking flanging device, insert and flanging die including pressure material core, lower mould, install the support material core on the die holder, support material core lower extreme and pass through nitrogen spring and be connected with the die holder. When the device is used, a plate is clamped between a material pressing core and a lower die insert, a part needing flanging is clamped between a flanging male die and a material supporting core, an upper die base drives the flanging male die to press downwards, the flanging part is bent gradually and separated from the flanging male die and the material supporting core gradually, finally, bending is achieved completely, the part is also separated from the flanging male die and the material supporting core completely, the plate is in a locked state all the time in the whole flanging process, the flanging process is stable, the CAE analysis after flanging is adopted, the resilience value of the surface A of the outer plate of the vehicle door is realized, and the resilience is greatly reduced when viewed from the value.

Description

Vehicle door outer plate flanging device

Technical Field

The utility model relates to a door planking processing equipment technical field especially relates to a door planking flanging device.

Background

The outer panel of the door is one of the most important outer covers of the automobile body, and the forming quality of the outer panel directly influences the appearance quality of the whole automobile and the matching degree of other parts. With the improvement of the requirements of various large automobile main engine factories on the forming quality of finished parts, the size requirements of automobile outer covering parts are higher and higher, and the rebound control of the automobile outer covering parts is a main direction of the research of the mold industry. At present, to the resilience that causes the A face of finished piece behind door planking turn-ups, mainly be exactly through CAE analysis play resilience numerical value, at earlier stage processing digifax stage, carry out the compensation of kick-backing to door planking A face.

The springback compensation of the automobile outer covering part is a difficult point in stamping and the conventional springback compensation method is easy to cause defects on the outer surface of the part. After the surface of the workpiece is reconstructed, the contour dimension of the workpiece is deviated along with the change of the surface curvature and the arc length. The conventional springback compensation method enables the springback value after profile compensation to be within detection tolerance, and when the springback of a workpiece is large, the surface curvature cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

To the technical problem that exists among the above-mentioned prior art, the utility model aims at providing a door planking flanging device.

For realizing the utility model discloses a purpose, the utility model provides a pair of door planking flanging device, insert and the flanging die including pressing material core, lower mould, install the support material core on the lower die base, it passes through nitrogen spring and is connected with the die holder to hold in the palm material core lower extreme.

The two sides of the material supporting core are respectively connected with a first guide plate and a second guide plate which are arranged on the lower die base and the lower die insert in a sliding mode.

Wherein, be provided with on the die holder of holding in the palm the material core below and be used for carrying on spacing lower balancing piece to holding in the palm the material core.

Wherein, be provided with the upper balance piece that is used for injecing turn-ups terrace die and holds in the palm material core position below the upper die base.

Compared with the prior art, the beneficial effects of the utility model are that, in the time of using, the sheet material centre gripping is pressing between material core and the lower mould insert, the partial centre gripping of needs turn-ups is between turn-ups terrace die and support material core, the punch holder drives the turn-ups terrace die and pushes down, turn-ups part is bent gradually, and break away from out gradually between turn-ups terrace die and the support material core, finally realize bending completely, also break away from completely between turn-ups terrace die and the support material core, at whole turn-ups in-process, the sheet material is in the lock dead state all the time, guarantee that the turn-ups process is steady, adopt the CAE analysis behind this application turn-ups, the resilience numerical value of door planking A face, see from numerical value, the resilience reduces greatly, make to the door plant of the bake hardening steel sheet that adopts B180H1 or B220H1, can carry.

Drawings

FIG. 1 is a schematic structural diagram of the present application;

FIG. 2 is a first schematic view of a flanging process utilizing the present application;

FIG. 3 is a second schematic view of a flanging process utilizing the present application;

FIG. 4 is a third schematic view of a flanging process utilizing the present application;

in the figure, 1-material pressing core, 2-upper die base, 3-flanging male die, 4-upper balance block, 5-first guide plate, 6-material supporting core, 7-lower balance block, 8-nitrogen spring, 9-lower die base, 10-second guide plate, 11-lower die insert and 12-plate.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

The present invention will be described in further detail with reference to the following drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

For the door outer panel made of B180H1 and having a thickness T equal to 0.7, the door outer panel is completed in four steps: the flanging forming method comprises the following steps of OP10 drawing, OP20 trimming and punching, OP30 trimming and punching, OP40 flanging, forward flanging of the outer plate of the vehicle door in a circle of OP40, and edge covering of the inner plate and the outer plate after flanging. By adopting the traditional flanging process scheme, the rebound value of the part obtained after CAE analysis is very large on the surface A from the rebound value, and qualified products cannot be achieved by compensating the surface A.

Therefore, the novel flanging process scheme is adopted in the application: the material supporting core is added at the flanging position of the lower die, the traditional free flanging is changed into the material clamping flanging, and the technical scheme of the material clamping flanging is shown in figures 1-4:

the utility model provides a pair of door planking flanging device, insert 11 and flanging die 3 including pressing material core 1, lower mould, install on lower die base 9 and hold in the palm material core 6, hold in the palm 6 lower extremes of material core and pass through nitrogen spring 8 and be connected with lower die base 9.

Two sides of the material supporting core 6 are respectively connected with a first guide plate 5 and a second guide plate 10 which are arranged on a lower die base 9 and a lower die insert 11 in a sliding mode. Wherein, a lower balance block 7 used for limiting the material supporting core 6 is arranged on the lower die seat 9 below the material supporting core 6. Wherein, an upper balance block 4 used for limiting the positions of the flanging male die 3 and the material supporting core 6 is arranged below the upper die base 2.

During flanging, the pressing core 1 presses the plate 12, the flanging male die 3 moves downwards to press the plate 12 in the flanging area with the supporting core 6, and then flanging forming is carried out. The material supporting core 6 is stressed by a nitrogen spring 8 and moves up and down by a guide plate serving as a guide device. In the whole flanging process, the plate 12 is always in a locked state, the flanging process is ensured to be stable, the rebound numerical value of the A surface of the outer plate of the vehicle door is analyzed by the CAE after flanging, the rebound is greatly reduced from the numerical value, the A surface defect is controlled, the requirement on the quality of a workpiece is met, and the problem can be solved by compensating the A surface.

The technical means not described in detail in the present application are known techniques.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The flanging device for the outer plate of the vehicle door comprises a material pressing core, a lower die insert and a flanging male die, and is characterized in that a material supporting core is installed on a lower die base, and the lower end of the material supporting core is connected with the lower die base through a nitrogen spring.

2. The vehicle door outer plate flanging device according to claim 1, wherein two sides of the material supporting core are respectively connected with a first guide plate and a second guide plate which are arranged on a lower die seat and a lower die insert in a sliding manner.

3. The flanging device for the outer plate of the vehicle door according to claim 1, wherein a lower balance block used for limiting the material supporting core is arranged on a lower die seat below the material supporting core.

4. The vehicle door outer panel flanging device according to claim 1, wherein an upper balance weight for limiting the positions of the flanging male die and the material supporting core is arranged below the upper die base.