| 摘要 |
<p>A method of controlling a chasing lathe uses at least two tools (TL1, TL2) provided in parallel on one side of a tool slide (TBS), and a workpiece (WK) is machined by employing a succession of predetermined tools. The method comprises: inputting data on at least part dimensions, tool selection order, positions to be cut by each tool, and mounting dimensions from a reference position of each tool; and machining at the positions (P5-P4-P3-P2-P1; P5-P7-P8-P9-P10) to be machined which are allotted to the respective tools, using the predetermined tools in order on the basis of the data. In addition, during the machining, upon the completion of machining with one tool (TL1), when the subsequent tool (TL2) is being positioned at a position which will be machined thereby by moving the tool slide (TBS), the tool slide (TBS) is moved in the Z-axis direction to a point (Pr) at which none of the tools (TL1, TL2) will come into contact with the workpiece (WK) by the movement of the tool slide (TBS) in the direction (X-axis direction) perpendicular to the longitudinal direction of the workpiece (WK) (Z-axis direction). Thereafter, the tool slide is moved in the X-axis direction to a point (Pt) at which the X-axis position of the selected tool to coincide with the X-axis coordinate of the start position of the machining done by that tool, and then machining is done by employing the selected tool. </p> |
