Milling tool holder

  • US 6,299,394 B1
  • Filed: 02/28/2000
  • Issued: 10/09/2001
  • Est. Priority Date: 02/28/2000
  • Status: Expired due to Term
First Claim
Patent Images

1. A tool holder assembly, comprising:

  • an elongated tool holder body having a longitudinal axis, an end face, an elongated shank-receiving bore extending from said end face into said body along said longitudinal axis, said bore having a planar bottom wall;

    a tool holder head adapted to support at least one cutting insert, said tool holder head comprising a cylindrical shank slidably receivable in said shank-receiving bore, and said shank having a planar shank end face engageable in a face-to-face relationship with the bottom wall of said bore;

    means for biasing said tool holder head along said longitudinal axis to pressure engage the shank end face with the bottom wall of the shank-receiving bore;

    said biasing means comprising a plurality of threaded openings in said tool holder body extending normal to said longitudinal axis in a common plane containing said longitudinal axis;

    said threaded openings being spaced equi-angularly apart in the circumferential direction, said threaded openings being in communication with said bore at axially spaced points therealong;

    said shank having frusto-conical recesses adapted to register with said threaded openings when the shank is inserted into the bore; and

    a threaded fastener threaded into each of said threaded openings to penetrate a respective frusto-conical recess, whereby said tool holder head is biased along said longitudinal axis toward said bottom wall.

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