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Linear electric servo motor actuated screw thread tapper

  • US 20060165502A1
  • Filed: 05/19/2003
  • Published: 07/27/2006
  • Est. Priority Date: 05/17/2002
  • Status: Abandoned Application
First Claim
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1. A thread tapper and drill machine comprising a servo spindle motor and spindle, at least one mount supporting the spindle motor and spindle, said mount supported on means on abase to provide for linearly guided movement of the spindle motor and spindle relative to the base, and means on the spindle for axially attaching a tap thereto, the improvement comprising an electric linear servo motor mounted on said base, said electric linear servo motor having an armature, the armature having at least one end, the end attached to the at least one mount of the servo spindle motor and spindle, whereby the spindle motor can impart controlled rotational movement to the spindle and the linear electric motor can impart controlled axial movement to the spindle.

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