A method for gear compensation and correction of spur gear injection mold
An injection mold, spur gear technology, applied in the direction of gears, household appliances, other household appliances, etc., can solve problems such as cost increase, and achieve the effect of improving the precision level of gears and ensuring dimensional accuracy
Active Publication Date: 2018-07-17
富泰克精密注塑(苏州)有限公司
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Problems solved by technology
This method needs to compensate the mold at each stage, which will increase the cost
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[0026] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0027] see Figure 1 to Figure 3 . It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the sa...
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The invention provides a gear compensation and correction method of a straight gear injection mould. Each single tooth on the injection mould is numbered, injection process parameters of the injection mould are set, and a gear sample is produced; an upper cross section and a lower cross section of the gear sample produced in the last step are selected, all-geared continuous scanning is conducted by utilization of a coordinate measuring machine, and scanning data are input into an excel form; actual distribution of the single teeth is compared with theoretical data, and the tooth form, the tooth crest radius position and the involute line shape of each single tooth are analyzed; the position and the involute shape of each single tooth are recalculated based on an analytical result in the sixth step, and tooth shape compensation and correction of the injection mould are conducted; and a new gear injection mould is machined for producing gears according to data after compensation and correction are conducted. The gear precision level is improved by utilization of current three schemes for glue feeding, precision requirements of the injection mould are improved on the premise that the injection cost is not increased, and the consistent mode dimensional precision of machining through the same machine is guaranteed.
Description
technical field [0001] The invention relates to a method for compensating and correcting plastic gears. Background technique [0002] Due to the advancement of science and technology, products are becoming more and more complex, especially in order to reduce the space weight of automotive plastic parts, meet the requirements of energy saving, environmental protection, and cost reduction, more parts are replaced by plastics. And cost control is also more stringent. Therefore, optimizing the production process of plastic parts, ensuring quality requirements and reducing costs have become urgent problems to be solved. Existing spur gear injection molds usually adopt a relatively balanced glue feeding method with 3 or more points of glue feeding, which can ensure gear parts with a certain meshing accuracy. With the energy-saving and lightweight design requirements of automobiles, more and more gear parts begin to use plastic instead of metal, and the precision requirements for...
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IPC IPC(8): B29C45/38G06F17/50B29C45/26B29L15/00
CPCB29C33/3835B29C33/3842B29C45/2602B29L2015/003G06F30/17
Inventor 李伟
Owner 富泰克精密注塑(苏州)有限公司