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Cutting tool compensator for stationary machine tool

  • US 4,622,871 A
  • Filed: 12/31/1984
  • Issued: 11/18/1986
  • Est. Priority Date: 12/31/1984
  • Status: Expired due to Fees
First Claim
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1. A machine tool holder circumscribing a longitudinal axis of rotation and adapted for having coupled thereto at least one cutting tool which is adjustable radially of said axis, said machine tool being of the type wherein said at least one cutting tool cuts a rotating workpiece and comprising:

  • a housing circumscribing said axis;

    a block member having a cavity therein, circumscribing said axis and being coupled to said housing for radial movement relative to said axis, said block member being adapted for having coupled thereto said at least one cutting tool;

    a drawbar which extends along said axis and is reciprocatably mounted within said housing and said cavity;

    a roller screw mounted within said housing, said screw including a leadscrew spindle extending along said axis and at least one nut body operatively coupled thereto;

    means coupling said drawbar to said leadscrew spindle for reciprocating said drawbar along said axis when said leadscrew spindle moves along said axis;

    means operatively coupling said drawbar and said block member for causing said radial movement of said block member when said leadscrew spindle moves along said axis; and

    ,means coupled to said at least one nut body for controllably rotating said at least one nut body to allow for the selective longitudinal movement along said axis of said leadscrew spindle and drawbar coupled thereto so that fine adjustments can be made in radially positioning said block member during a cutting operation.

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