Grinding method for milling cutter degrees

Abstract

The invention provides a grinding method for milling cutter degrees. The grinding method comprises a first step of calculating length L and width W which need grinding of a milling cutter blank; a second step of marking a position along the length direction of the milling cutter blank, wherein the distance between the position on the milling cutter blank and a working end face of the milling cutter blank is L, the working end face is an end face which is placed at one end of the milling cutter blank, wherein blades are placed at the at the milling cutter blank; a third step of grinding the milling cutter blank on a grinding wheel, in the process of grinding, needed width size is measured, when the grinded height reaches the marked position, the grinded width of the milling cutter blank is W to finish grinding of the blade of a milling cutter; and a fourth step of repeating the third step to finish grinding of another blade of the milling cutter. The grinding method of the degree of the milling cutter is beneficial for machining of the milling cutter, errors of the milling cutter are reduced, manufacture precision is improved, quality of squeezed products is further improved, and service life of molds is prolonged. The invention further provides a formed milling cutter and a degree milling cutter.

Description

technical field [0001] The invention relates to the technical field of milling cutter manufacturing, and more specifically, relates to a method for grinding milling cutter degrees. Background technique [0002] In mold processing, milling cutters are often used to process inclined surfaces, especially the root of the upper mold core head and bridge chamfers of hot extrusion die splitter molds. It needs to be processed with the cooperation of forming milling cutters and degree milling cutters. The vertical surface, the R surface and a small slope of the core head, the degree milling cutter is used to process the remaining slope, and the small slope processed by the above-mentioned forming milling cutter is connected to complete the processing of the large slope. [0003] Since the purchase of form milling cutters and degree milling cutters is not only expensive, but also not easy to buy form milling cutters and degree milling cutters of ideal size, at present, most of the for...

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Problems solved by technology

[0003] Since the purchase of form milling cutters and degree milling cutters is not only expensive, but also not easy to buy form milling cutters and degree milling cutters of ideal size, at present, most of the form milling cutters and degree milling cutters are used by millers as end mills , is directly ground on a grinder, which is not easy to process; moreover, the error of the form milling cutter and degree milling cutter directly ground without any auxiliary work is relatively large, and the manufacturing accuracy is low; using such a form milling cutter and degree milling cutter Cooperating with the processed slope will make the slope uneven. If the mold with the above slope is used in the extrusion process, it will affect the flow rate of the metal in the mold, thereby affecting the quality of the extruded product and the service life of the mold.

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