Method for forming annular end tooth edge line of arc-shaped end tooth vertical mill

Abstract

The invention discloses a method for forming an annular end tooth edge line of an arc-shaped end tooth vertical mill. In the method, a tool making unit processes and forms the arc-shaped end tooth vertical mill according to a mathematical model built by a data control unit and parameter data output by the data control unit. The data control unit builds the mathematical model and output the parameter data by the following steps: inputting the diameter and helical angle of the tool; building the mathematical model of the end tooth edge line; building a mathematical model of the annular end tooth edge line by resolving equation of tangent at the end of a peripheral tooth edge line, resolving the intersection point of the extended line of a straight edge and the tangent at the end of the peripheral tooth edge line, determining the plane defined by the straight edge and the tangent at the end of the peripheral tooth edge line, and resolving the intersection line of the plane and an annularsurface to form an annular edge line; and finally outputting the parameter data of the annular edge line to the tool manufacturing unit. The invention establishes a method for forming the end tooth straight edge line and annular edge line of a vertical mill, which is used for building the mathematical model of the annular vertical mill and instructing manufacturing and processing in order to ensure the smooth connection of the peripheral tooth edge line and the end tooth straight edge.

Description

technical field [0001] The invention relates to the field of cutting tool manufacturing, in particular to a method for forming an arc edge line of an end mill with an arc head used for machining by a numerically controlled machine tool. Background technique [0002] The arc head end mill is a commonly used new structural tool for machining curved surfaces by CNC machine tools. It is widely used in mold manufacturing, automobile manufacturing, aerospace, electronic communication product manufacturing and other industries. In the design and manufacture of arc-end end mills, the design and sharpening of the blade curve are very important, because the blade not only determines the shape of the tool, and thus determines the shape of the machined surface (during forming), but also affects the cutting of the tool. Performance, processing quality play an important role. In the grinding and manufacturing of traditional annular end mills, because there is no guidance from the theoret...

AI Technical Summary

Problems solved by technology

In the grinding and manufacturing of traditional annular end mills, because there is no guidance from the theoretical annular edge line model, the rake face of the annular end tooth is often formed by direct grinding wheel feeding, which is prone to interference and forms a gap on the annular edge ; In the sharpening of the flank, it is difficult to ensure the smooth transition between the flank of the annular edge and the flank of the peripheral edge

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