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Processing technology of lamp mold parts

A technology for parts processing and automotive lamp molds is applied in the processing field of injection mold parts for automotive lamps, which can solve the problems affecting the finishing efficiency and accuracy of injection mold parts, difficult to meet the processing needs of high-hardness materials, and unsatisfactory processing effects. The effect of reducing processing cost, improving tool force, and avoiding tool breakage

Active Publication Date: 2020-09-15
HASCO VISION TECHNOLOGY CO LTD
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Problems solved by technology

[0004] It can be seen that ordinary processing technology is difficult to meet the processing needs of high-hardness materials, and there are generally a series of problems such as slow cutting speed, serious tool wear, and unsatisfactory processing effects, which are the main links affecting the efficiency and accuracy of injection mold parts finishing. It is an important and difficult problem to be solved in the processing of injection mold parts

Method used

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  • Processing technology of lamp mold parts
  • Processing technology of lamp mold parts

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Embodiment Construction

[0024] The invention discloses a processing technology for automotive lamp mold parts, which is mainly aimed at high-hardness parts such as inserts, cores and inner and outer core pulls. Surface machining is required before and after heat treatment. Considering the processing after heat treatment and the deformation during heat treatment, the machining before heat treatment should leave a good margin. After heat treatment, the hardness of the material is significantly improved, and the tool used for machining should use a tool whose hardness is 5-10 units of Rockwell hardness higher than that of the mold material. For example, for a workpiece with a hardness of about HRC50, it is preferable to use a tool with a hardness of about HRC55, so as to obtain better processing quality and higher processing efficiency, while taking into account the tool life and use cost.

[0025] After heat treatment, the surfaces of the workpiece are mainly processed by milling. It is preferred to u...

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Abstract

The invention relates to a vehicle lamp mold part machining technology. The technology comprises the steps that mold steel 2343 is adopted for manufacturing an insert, a core and inner and outer loosecores, it is ensured that the hardness of the heat-treated material reaches HRC46-48, a tool with the hardness 5-10 unit Rockwell hardness higher than that of the mold material is adopted for machining after heat treatment, and the tool is preferentially made from hard alloy materials with (Al, Ti, Cr) N type multiple coatings. When the back face of a part is machined before heat treatment, a datum platform and a datum hole are machined out, the datum platform is used for measuring the Z-direction deformation of a workpiece after heat treatment, and the datum hole is use for measuring the deviation in the X direction and the Y direction of the workpiece after heat treatment. The injection mold part finish machining efficiency and precision can be effectively improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a processing method of an injection mold part of a car lamp, in particular to a manufacturing process of the mold part proposed for high hardness characteristics required by inserts, cores and inner and outer core pulls. Background technique [0002] The quality of the mold directly affects the production efficiency and quality of the product. In order to improve the quality of the mold and reduce the number of mold repairs, heat-treated steel is increasingly replacing ordinary steel as the material for mold parts. As we all know, the hardness of heat-treated steel is extremely high, and the Rockwell hardness is basically around HRC50, which can not only prolong the service life of the mold, reduce the number of times of mold preparation, but also reduce the cost and time of mold repair, which has a very significant effect on the improvement of output and efficiency. Effect. [0003] However, due to the high hardness, ordinar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P15/24
CPCB23P15/24
Inventor 姜万禄
Owner HASCO VISION TECHNOLOGY CO LTD
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