| 摘要 |
PURPOSE:To permit the working in a short time by calculating the feeding dimension from the relative position of a workpiece for a measuring element and the corresponding point position of the tool prescribed point of a working part, thus efficiently carrying out preparatory work, in an electric-discharge machine, etc. CONSTITUTION:A bench 108 is shifted in the X- and Y-directions, and a tool 124 is shifted in the Z-direction, and each X-coordinate of the measurement points X1 and X2 is obtained by a touch sensor 52, and theta is calculated, and the P-point coordinate is obtained from the Z-coordinate of the measurement point X3. While, the coordinate of the point Q of a workpiece 110 is actually measured, having the touch sensor 52 as standard, by installing a measurement sphere onto an electrode holder 50. Further, the relation between the point Q and the point R on the worked surface formed onto the work 110 in correspondence with the point P of the electrode 124 is set according to the dimension on designing. Each feeding dimension in the X, Y, and Z-directions for the working feed starting from the point P to the point R is calculated by a CPU, and the electric discharge machining is carried out by the shift of the electrode 124. Thus, the working with high precision can be carried out in a short time. |
