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Automobile door water cutting metal plate edge covering method and device

A technology for automobile doors and hemming devices, which is applied in the directions of transportation, packaging, vehicle parts, etc., can solve problems such as loosening, waves, and reduce production costs, and achieve the effects of eliminating springback, avoiding damage, and avoiding stress concentration.

Inactive Publication Date: 2021-08-03
CHANGCHUN AUTOMOBILE IND INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method and device for water-cut sheet metal edge wrapping of automobile doors, which solves a series of technical problems such as looseness, waves, burrs, noise and abnormal noise after water-cut sheet metal edge wrapping of automobile doors. Under the action of the raised structure, the flanging process can be completed in one process, which reduces the maintenance workload of the mold and flanging inserts in the later stage, greatly reduces the extra cost and production man-hours, and reduces the production cost

Method used

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  • Automobile door water cutting metal plate edge covering method and device
  • Automobile door water cutting metal plate edge covering method and device
  • Automobile door water cutting metal plate edge covering method and device

Examples

Experimental program
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Effect test

Embodiment 1

[0038] A water-cut sheet metal wrapping method for an automobile door, specifically comprising the following steps:

[0039] Step S1: Install and fix the water-cut edge sheet metal of the car door on the edge-wrapping mold;

[0040] Step S2: Under the action of external force, the water-cut edge sheet metal is flanged from the initial flanging angle α to 0° and the flanging process is completed, so that several smooth pits are formed on the outer surface of the water-cut edge sheet metal after bending.

[0041] A series of technical problems such as looseness, waves, burrs, noise and abnormal sound after hemming in the past are greatly reduced by setting a plurality of smooth dimples.

[0042] see figure 2 , in step S2, the flipping mechanism is used as an external force to complete the flanging process, and a number of protruding structures 2 are arranged on the flipping mechanism, and the protruding structures 2 are used to form smooth pits.

[0043] see Figure 4 and ...

Embodiment 2

[0058] see Image 6 , Figure 7 and Figure 8 , in step S2, a single raised structure 2 is pressed down at one time to form three smooth dimples 2-12, and the three smooth dimples 2-12 are arranged in a circular array close to the center. Structurally, there are three cones distributed in a circular array around the center of the lower cylinder;

[0059] Which attached Figure 7 Among them, three smooth pits form a group, and several groups are arranged in a straight line, with Figure 8 Among them, three smooth pits form a group and are arranged in an "S" shape. Only a part of the "S" shape is drawn in the attached drawing for illustration.

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Abstract

The invention provides an automobile door water cutting metal plate edge covering method and device. The method specifically comprises the following steps that an automobile door is placed and fixed to an edge covering mold; under the action of external force, a water edge cutting metal plate is subjected to edge turning to 0 degree from the initial edge turning angle alpha, the edge turning process is completed, and multiple smooth pits are formed in the outer surface of the bent water edge cutting metal plate; and the external force adopts a plate turning mechanism to finish the edge turning process, and multiple bulge structures are arranged on the plate turning mechanism and are used for forming the smooth pits. According to the automobile door water cutting metal plate edge covering method and device, a series of technical problems of looseness, waves, burrs, noise, abnormal sounds and the like after edge covering of the automobile door water cutting metal plate are avoided, the edge turning process of the automobile door water cutting part can be completed under the action of an edge turning insert and the bulge structures, the later maintenance workload of a mold and the edge turning insert is reduced, the extra cost and the production time are greatly reduced, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of automobile body-in-white manufacturing, and specifically relates to a design method for an automobile door water-cut sheet metal hemming mechanism, which is applied to the hemming work in the production process of a body-in-white vehicle door assembly, and belongs to a combined system of robot hemming and mold flanging. Background technique [0002] In the body-in-white production of the OEM, the sheet metal hemming at the four door water cuts is different from other hemming structures. It is located on the lower side of the narrow and slender window frame, and there is not enough space to install the pressing device. It is prone to a series of technical problems such as looseness after wrapping, waves, burrs, noise and abnormal noise. After benchmarking the models of other OEMs, it was found that there is a glue coating or welding process at the water cut of the door. The function of gluing or welding is to incre...

Claims

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Application Information

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IPC IPC(8): B21D19/08B21D53/88
CPCB21D19/08B21D53/88
Inventor 潘远安马旭东李昕谢跃文郝俊伟高文嫱王强
Owner CHANGCHUN AUTOMOBILE IND INST
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