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GEOMETRIC ERROR IDENTIFICATION METHOD OF MULTI-AXIS MACHINE TOOL AND MULTI-AXIS MACHINE TOOL
GEOMETRIC ERROR IDENTIFICATION METHOD OF MULTI-AXIS MACHINE TOOL AND MULTI-AXIS MACHINE TOOL
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机译:多轴机床的几何误差识别方法及多轴机床
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摘要
A geometric error identification method of multi-axis machine tool includes a measuring step of indexing a position of a target ball mounted on one of a main spindle and a table into a plurality of angles around an rotation axis, and measuring the position of the target ball at respective indexed positions by using a touch probe mounted on the other one of the main spindle and the table, a geometric error calculation step of calculating a geometric error from the measured position of the target ball, an ellipse-expression calculation step of calculating an ellipse approximate expression by an arc trajectory measured by operating the rotation axis, and an error correcting step of calculating and correcting a scaling error of translation axes from the calculated ellipse approximate expression.
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