Process method for controlling overall dimension of top cover and compensation method
A technology of contour size and process method, which is applied in the process field of controlling the contour size of the top cover, can solve the problems of long manufacturing cycle and high secondary processing, and achieve the effect of saving manufacturing cycle, avoiding welding and processing, and avoiding contour size rectification.
Pending Publication Date: 2022-07-15
CHINA FIRST AUTOMOBILE +1
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Problems solved by technology
[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that easily cause quality problems, high cost of secondary processing, and long manufacturing cycle, so as to provide a process method for controlling the contour size of the top cover
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[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0035] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must hav...
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The invention relates to the technical field of molds, in particular to a process method for controlling the overall dimension of a top cover and a compensation method. The invention provides a mode of reducing plate flowing and pre-compensating, and the problem of overall dimension deviation of the top cover gutter channel is solved; comprising the following procedures: a first procedure, drawing; 2, trimming and shaping; thirdly, straight flanging and shaping are conducted; 4, wedge flanging and shaping; and 5, trimming. After the fourth working procedure is completed, the outline of the top cover is formed, the outline size of the workpiece is the outline size of the final product, and the outline deviation value can be brought to the final product all the time. Therefore, according to the method, an inclined pressure plate is adopted in the fourth step, the draw bead is arranged, the convex rib of the draw bead is flattened, and pre-compensation is carried out, so that the purpose of solving the contour deviation is achieved; welding and machining are avoided, the die quality is improved, the manufacturing cost is reduced, and the manufacturing period is shortened.
Description
technical field [0001] The invention relates to the technical field of molds, in particular to a process method for controlling the outline size of a top cover. Background technique [0002] In the outer cover of the car, the water trough area where the top cover and the back door overlap is complicated in shape and requires high precision of the overlap relationship. As the water function area in the whole vehicle, the matching requirements of welding and assembly are very high. . At the same time, due to the fierce competition in the automobile market, automobile manufacturers not only continuously improve the quality requirements, but also require the tooling development cycle to be continuously shortened. In order to meet the requirements of product accuracy and matching, and at the same time save the tooling manufacturing cycle, it is necessary to study the forming process of this area and the reasons for the formation of dimensional deviations, and solve the contour d...
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Login to View More IPC IPC(8): B21D35/00B21D53/88B21D37/10
CPCB21D35/002B21D53/88B21D37/10
Inventor 赵丹李凯王强胡勇程保权丛立国陈忠石杨龙孙瑞亮李照
Owner CHINA FIRST AUTOMOBILE