METHOD FOR PREVENTING COLLISION OF A MOVING SHAFT OF A WIRE ELECTRIC DISCHARGE MACHINE.
- 申请公布号:
- EP0676254(A1)
- 申请号:
- EP19940927103
- 申请日期:
- 1994.09.27
- 申请公布日期:
- 1995.10.11
- 申请人:
- FANUC LTD.
- 发明人:
- KITA, YUKI, ROOM 10-203, FANUC MANSHION HARIMOMI;ITO, MASAYA, FANUC DAI-3 VIRA-KARAMATSU;FUJITA, MINORU, FANUC DAI-3 VIRA-KARAMATSU
- 分类号:
- B23H7/06;B23H7/02;B23H7/26;B23H11/00;(IPC1-7):B23H7/02
- 主分类号:
- B23H7/06
- 摘要:
- <p>A method for preventing collision of a moving shaft of a wire electric discharge machine in which at least one moving shaft (8) is driven and controlled by a servomotor (M) comprising the steps of configuring a control system for a servomotor for the moving shaft (8) which drives and controls at least one moving shaft so as to include therein a disturbance estimating observer, allowing the disturbance observer to estimate the load of a disturbance applied to the moving shaft, comparing the estimated disturbance with a pre-set value, and judging that the moving shaft is brought into collision with an obstacle when the estimated disturbance exceeds the pre-set value, thereby preventing a damage from the collision of the moving shaft of the wire electric discharge machine through the collision detection resulting from the judgement. <IMAGE></p>
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