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Numerical control method and system

  • US 5,132,912 A
  • Filed: 04/26/1990
  • Issued: 07/21/1992
  • Est. Priority Date: 04/28/1989
  • Status: Expired due to Fees
First Claim
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1. A numerical control method by means of the numerical control apparatus which taps by a first action for setting a feed shaft position at a predetermined tapping start position, a second action for setting a spindle angle at a predetermined tapping start angle and a third action for synchronizing a feed shaft and a spindle based on the predetermined tapping feed rate and tapping spindle rate, the method comprising the steps of:

  • setting the feed rate at the end of the first action as the feed rate for tapping;

    setting the spindle rate at the end of the second action as the tapping spindle rate, and starting the third action after having finished the first and second actions simultaneously.

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