Design method of die profile of automobile covering part characteristic line area

A technology of outer cover and mold surface, which is applied in the field of automobile outer cover mold surface design, can solve the problems of prolonging the mold manufacturing cycle, promoting addition, and increasing the difficulty of mold debugging, so as to reduce the strength and difficulty and shorten the mold manufacturing cycle effect

CN105268865AActive Publication Date: 2016-01-27SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-01-27

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Abstract

The invention provides a design method of a die profile of an automobile covering part characteristic line area. The design method comprises the step that a punch-cum-blanking die machining fillet radius R+ is determined according to the fillet radius R of an automobile covering part characteristic line, wherein the punch-cum-blanking die machining fillet radius R+ is equal 0 mm when R is smaller than or equal to 3 mm, is equal to 1.5 mm when R is larger than 3 mm and smaller than 4 mm, and is equal to R-2 mm when R is larger than or equal to 4 mm. According to the design method of the die profile of the automobile covering part characteristic line area, characteristic line precision and covering part monolithic forming quality can be ensured, meanwhile, the strength and difficulty of later-period debugging carried out by a bench worker can be greatly lowered, and the whole die manufacturing period is shortened.
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Description

technical field

[0001] The invention relates to a method for designing a mold profile of an automobile outer cover, in particular to a design method for designing a mold profile of a characteristic line region of an automobile outer cover. Background technique

[0002] In today's automobile manufacturing field, in order to cater to the aesthetics of automobile styling by mainstream consumer groups, the rounded corners of the characteristic lines of automobile outer panels are generally designed to be smaller. To ensure the dimensional accuracy of the small fillet feature line and the overall forming quality of the outer cover at the same time, it will undoubtedly greatly increase the requirements for the fine design of the automobile stamping die surface, the manufacturing accuracy of the die and the level of fitter debugging. Among them, the fine design of the mold surface is a cutting-edge link, which has a fundamental impact on the quality of subsequent mold processing an...

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Embodiment Construction

[0029] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Wherever possible, the same numbers will be used throughout the drawings to refer to the same or like parts. In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the description of the present invention may be selected by the applicant according to his or her judgment, and the detailed meanings thereof are set forth herein described in the relevant section of the description. Furthermore, it is required that the present invention be understood not only by the actual terms used, but also by the meaning implied by each term.

[0030] The present invention adopts a combination of theory and practice, and analyzes the theoretical parameters of the characteristic lines of the outer covering on the basis of the design methods and schemes of the mold surface in the characteristi...