Vehicle door outer plate door handle position curved surface defect optimization method

Abstract

The invention provides a vehicle door outer plate door handle position curved surface defect optimization method. The method comprises the following steps that 1, a door outer plate is subjected to strong pressing forming through a drawing die, and in a grinding process, blue oil re-coloring is conducted on a curved surface area around a concave surface area of a door handle; 2, whether coloring is uniform and whitened is judged, if the coloring is uniform and whitened, whether the curved surface area is qualified through an oilstone, and if the checking is qualified, the curved surface area does not needed to be optimized; and If coloring is uneven or inspection is unqualified, the curved surface area is subjected to strong pressure through a flanging sizing die, the concave surface areais subjected to avoidance, and blue oil is adopted for re-coloring the curved surface area in the grinding process; and 3, step 2 is executed again till the curved surface area is inspected to be qualified through the oilstone. By means of the optimization method, the defects of the curved surface area around a concave surface of the door handle can be overcome, the workload of manual grinding ofa bench worker is reduced, and a grinding period of the die is shortened.

Description

technical field [0001] The invention relates to the technical field of forming a car door outer panel, in particular to a method for optimizing a curved surface defect of a door handle position of a car door outer panel. Background technique [0002] The curved surface area of ​​the door handle installation position of the outer panel of the car door is a concave shape. During the drawing forming process, the concave surface is plastically deformed, which causes the thickness of the curved sheet around the concave surface to change, and increases the thinning rate of the curved surface around the concave surface. , but because the concave surface of the door handle is an irregular shape, the thinning rate of the curved surface area around the concave surface changes unevenly. This surface defect can be seen visually by means of a whetstone. [0003] In the prior art, in order to eliminate or alleviate the defects of the curved surface around the concave surface of the door ...

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Problems solved by technology

[0004] However, the methods in the prior art will increase the difficulty of the fitter's research and integration and prolong the research and matching cycle

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