Teaching track modification method and device based on three-dimensional program backspacing function

Abstract

The invention discloses a teaching track modification method and device based on a three-dimensional program backspacing function, and can solve the problem that a traditional teaching track modification method cannot directly modify a program segment needing to be modified multiple times through the program backspacing function. The method comprises the following steps of monitoring R parameter vectors to acquire a program name and a numerical control NC path in an R parameter variable; extracting a corresponding program text, and storing and displaying the program text; executing a teachingprogram in a single step, and judging whether the track of a five-axis parameter in an Nth program line has deviation or not when the Nth program line walks step by step; if the track of the five-axisparameter has deviation, adjusting the track position of the five-axis parameter on the basis of the five-axis parameter, or re-taking the teaching sampling point in the Nth program row; and continuing to execute the teaching program in a single step, and modifying the values of the five-axis parameter of the next target point until the precision of the five-axis parameter values of all target points meets the requirements.

Description

technical field [0001] The invention relates to the field of motion control of a numerical control system, in particular to a method and device for modifying a teaching trajectory based on a three-dimensional program rollback function. Background technique [0002] Such as figure 1 As shown in the process, currently in the teaching function mode of Siemens 840D CNC system, the operator can only use the quick point positioning command G00, linear interpolation command G01, circular interpolation command CIP midpoint and circular interpolation command on the system teaching interface. The CIP end point function button of the supplementary command selects the corresponding program segment to insert; the program segment is deleted by the delete program segment function key; the entire teaching program is modified by the program segment modification function. [0003] With the increasing demand for the teaching function of 3D five-axis cutting machine tools, it may be necessary ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is to provide a method and device for modifying the teaching trajectory based on the three-dimensional program rollback function, which can solve the problem that the traditional teaching trajectory modification method cannot directly use the program rollback function to modify the program segments that need to be modified multiple times. modified question

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