| 摘要 |
1,041,713. Programmed control of machine tools. GENERAL ELECTRIC CO. April 18, 1963 [May 14, 1962], No. 15348/63. Heading G3N. In a tool offset correction arrangement, for use with a numerical control system such as that disclosed in Specification 1,019,896, the selection of one of a multiplicity of cutting tools for a desired cut of a programmed contour causes pulses representative of the tool offset correction to be applied to the command phase counters for the orthogonal ones about which the tool is to be moved. The number of the offset pulses is set up on a plurality of manually actuated switches which are interrogated before the commencement of the cut. On completion of the cut the correction is removed from the command phase counters in readiness for the interrogation of the offset switches for the next tool. |
