Method for corner removing through plunge milling in numerical control machining

Abstract

The invention discloses a method for corner removing through plunge milling in numerical control machining. The method includes the following steps that firstly, a corner face needing to be milled is selected; secondly, the angle of a cutter shaft is set, the middle line of two included angle faces is taken in an XY plane, the included angle between an angle face and the XY plane is adjusted to range from 5 degrees to 10 degrees, and if the corner face has an opening angle, the Z direction of the cutter shaft is taken; and thirdly, laying of a first layer, a second layer, a third layer, a fourth layer and a fifth layer is conducted in the radial direction according to the set angle, the margin of a corner is removed, the milling manner for removing the margin of the corner firstly is adopted for completing corner removing through plunge milling, decelerating of the corner is avoided during finish machining, a bottom cutting edge is used for cutting in plunge milling, a certain angle is kept between the bottom cutting edge and a part, and cutter bending is also avoided. By means of the manner, multiple corners can be programmed at the same time, so that the programming efficiency is greatly improved; and the time of machining the corners is also reduced to be one fourth of the time spent on previous corner machining, the production cycle of parts can be effectively shortened, the machining capability is improved, and economic benefits are increased.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method for inserting and milling to clear corners in numerical control machining. Background technique [0002] In order to reduce the weight of the parts, the corners of the side walls of CNC parts are generally R6, but in order to ensure the processing efficiency, usually, the edge and web of the finishing process are processed with a tool with a diameter of ∮20. Finally, use a ∮12 tool to clear the corners by contouring. There are four disadvantages in doing this: 1. When finishing the edge, because the margin at the corner is more than double that of other places, such as ( figure 1 ), the shaded part is the machining allowance, which is inconvenient to use a uniform cutting speed and affects the machining efficiency; 2. The use of contour machining to clear corners is milling with the side edge of the tool. Due to the large corner allowance, it is easy...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of uneven finishing allowance, which affects the cutting speed; side edge milling produces pocket cutter; heavy programming work; and low processing efficiency, the corner allowance is removed before finishing, and the method of plunging and milling is used to clear the corner. processing

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