Controller for machine tool and five-axis simultaneous control machine tool controlled thereby

摘要

A controller including a detecting member detecting a machining position where a pivoting axis is reversed in machining by the machine tool based on the control data, an allowable position error setting member setting an allowable position error between a commanded machining position and an actual machining position, an allowable acceleration deciding member deciding the allowable acceleration about the pivoting axis based on a distance from the machining position of the reversed axis to a center of the pivoting axis and based on the allowable position error being set, and a controlling member controlling a velocity about the driving axis based on the allowable acceleration.

主权项

1. A controller for a machine tool controlling a machining position and a machining attitude of a tool relative to a workpiece by driving any of motors for driving axes including a linear axis and a pivoting axis based on a control data, said controller for said machine tool comprising;
a detecting member detecting said machining position where said pivoting axis is reversed in machining by said machine tool based on said control data; an allowable position error setting member setting an allowable position error between a commanded machining position and an actual machining position; an allowable angular error calculating member calculating an allowable angular error of a difference between a commanded angle of said pivoting axis and an actual angle of said pivoting axis based on said allowable position error and a distance; an allowable acceleration deciding member deciding an allowable acceleration about said pivoting axis based on said distance which is a distance from said machining position of said reversed axis to a center of said pivoting axis and based on said allowable position error being set or said allowable angular error; and a controlling member controlling a velocity about said driving axis based on said allowable acceleration.