AUTOMATIC PARAMETER ADJUSTMENT DEVICE FOR ADJUSTING PARAMETER CORRESPONDING TO PROCESSING CONDITION

摘要

An automatic parameter adjustment device capable of quantitatively determine the degree of importance of a processing time and a processing accuracy, and effectively adjusting a parameter in accordance with a processing condition. The adjustment device includes: a parameter changing part which changes a control parameter; a test program executing part which transmits a test program to a numerical controller for executing the test program; an execution result obtaining part which obtains an execution result of the test program; a storing part which stores the execution result and the parameter corresponding thereto; a weighting part which determines weighting coefficients of the processing time and processing accuracy as evaluation criteria based on input or setting by an operator; and a parameter extracting part which evaluates the execution result based on the weighted evaluation criteria, and extracts an optimum parameter from the storing part based on the evaluated execution result.

主权项

1. An automatic parameter adjustment device for automatically adjusting a control parameter of each of at least one drive axis of a machine tool, the control parameter being set to a numerical controller for controlling the machine tool, the automatic parameter adjustment device comprising:
a weighting part which determines weighting coefficients of a processing time and a processing accuracy of the machine tool, as evaluation criteria for automatically adjusting the control parameter; a parameter changing part which changes the control parameter; a test program executing part which transmits a test program used in automatically adjusting the control parameter to the numerical controller for executing the test program by the numerical controller; an execution result obtaining part which obtains an execution result by executing the test program, the execution result including a commanded trajectory and an actual trajectory of a representative point of the machine tool and an execution time of the test program; a storing part which stores the execution result and a control parameter corresponding to the execution result; and a parameter extracting part which evaluates the execution result based on the two weighted evaluation criteria, and extracts an optimum control parameter based on the evaluated execution result, wherein the test program is executed multiple times while changing the control parameter, and the extracted control parameter corresponds to an execution result having a high evaluation among a plurality of execution results obtained by executing the test program multiple times.