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Abrasive polishing method of automobile die

A technology for automobile molds and molds, which is used in grinding/polishing equipment, grinding machines, manufacturing tools, etc., can solve the problems of complex process, unsatisfactory finish, poor surface flatness, etc., to achieve simple polishing operation process and shorten polishing cycle. , high precision effect

Inactive Publication Date: 2017-07-14
LIUZHOU TONGWEI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface polished by this method has poor flatness, and the finish still cannot meet the requirements, and the process is more complicated

Method used

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Experimental program
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Embodiment Construction

[0019] specific implementation plan

[0020] The present invention will be further described in detail through specific embodiments below.

[0021] The grinding and polishing technology of automobile molds is divided into three stages: rough grinding, fine grinding and polishing. In fact, their working principles are the same, the difference is that the particle size of the grinding stone is different. Polishing can be divided into rotary type and live duplex type according to the different modes of movement. According to the different ways of surface contact, it can be divided into surface contact and line contact. Which polishing method to use can be selected according to the topological structure of the mold.

[0022] First, the sizes of the configurations are different, their properties are also different, and their uses are also very different. In general, if it is a small geometry, its geometry accuracy requirements can be ignored. Secondly, depending on the size of...

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Abstract

The invention provides an abrasive polishing method of an automobile die. The abrasive polishing method comprises the following steps: S1, before polishing, first inspecting machining traces left on the surface of a die main body; S2, carrying out rough polishing on the surface of the die by using diamond fiber oilstone with a 320-mesh grain size to remove knife marks and burrs on the surface of the die; S3, sequentially carrying out semi-precise polishing by using 500-mesh, 700-mesh, 900-mesh, 1100-mesh and 1300-mesh abrasive paper to remove machining textures on the surface of the die, using 100% pure cotton to absorb alcohol and wipe the surface of the die main body before changing one different model of abrasive paper, and checking polishing conditions; and S4, coating a polishing abrasive wheel with a 35000-mesh abrasive paste, and carrying out mirror surface precise polishing on the surface of the die, wherein under the condition of not considering geometrical precision, only steps S3-S4 are executed; and otherwise, steps S1-S4 are executed. According to the polishing method of an automobile lamp die, the polishing operating process is simple, the operation labor intensity is low, the polishing period is greatly shortened, the production cost of the die is reduced, the surface of the die manufactured by the method is smooth, and the precision is high.

Description

technical field [0001] The invention relates to the technical field of mold design, in particular to an automobile mold grinding and polishing method. Background technique [0002] Polishing is a very important process in the mold making process. With the wide application of plastic products, the requirements for the appearance quality of plastic products are getting higher and higher, so the surface polishing quality of plastic mold cavities also needs to be improved accordingly, especially Automobile lamp molds with mirror surface and high gloss surface have higher requirements on the surface roughness of the mold. [0003] Existing automotive lamp mold polishing requires workers with high technical proficiency, complicated process and high cost. Commonly used mechanical polishing, electrolytic polishing, and ultrasonic polishing are difficult to achieve comprehensive surface flatness, smoothness and geometric accuracy. Up to standard. [0004] At present, the specific p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B19/20
CPCB24B19/20
Inventor 袁玮骏黄名兴唐绍淼罗丙球
Owner LIUZHOU TONGWEI MACHINERY
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