Top cover collinear manufacturing process of common and panoramic sunroofs

Abstract

The invention discloses a top cover collinear manufacturing process of common and panoramic sunroofs. The process is characterized in that top covers of a common sunroof and a panoramic sunroof sharea mold, and collinear production is carried out; the sunroof part adopts a design structure of a trimming and turning one-body mold, so that trimming and shaping are carried out in one sequence; the adopted measures are as follows that the product is optimized, the strength of an insert is increased, and the thickness of a convex-concave mold insert is not less than 8 mm through product optimization. The material quality of the mold is improved, and the quenching process is Cr12MoV integral quenching. A turning convex-concave mold and the trimming concave mold are opposite to each other, and internal stress is eliminated. The process comprises the following steps of drawing, trimming and turning the sunroof, shaping the periphery, side turning and whole punching the sunroof or trim turningand punching the sunroof, and mold sharing during drawing. According to the process, the top covers of the common sunroof and the panoramic sunroof share the mold, and collinear production is carriedout; and the mold is reduced to four-procedure, the cost of mold developing and maintenance is low, moreover, due to the fact that the mold is shared by the top covers of the two sunroofs, the mold switching time is shortened, and the productivity of an automatic production line is improved.

Description

technical field [0001] The invention belongs to the technical field of cold stamping processing in the automobile industry, and in particular relates to a common sunroof and a panoramic sunroof top cover sharing a mold and collinear production. Background technique [0002] As the outer cover of the car, the molding quality of the outer panel of the roof directly affects the appearance quality and assembly quality of the whole vehicle. With the increase of people's demand for diversified car configurations, the same model needs to produce ordinary sunroof and panoramic sunroof roof at the same time. [0003] figure 1 This is the roof part diagram of the ordinary sunroof version. This roof is in the form of a sedan. The front and rear parts are relatively simple in shape, but the shape of the sunroof area is more complicated. The traditional molding process requires four processes to complete. [0004] figure 2 It is the top cover of the ordinary skylight version, and the ...

AI Technical Summary

Problems solved by technology

[0007] According to the traditional process plan, a total of 7 sets of molds are required for the ordinary sunroof and the panoramic sunroof top cover. The cost of mold development and maintenance is high, and because the molds are developed separately for the two types of skylight top covers, the production can only be carried out separately according to the two types of parts. Replacement of mold production, increase mold conversion time, and affect the increase in production capacity of automated production lines

High cost and low efficiency affect product competitiveness

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