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MAIN SHAFT FOR ROTATING TOOL PROVIDED WITH TOOL SEATING CHECK FUNCTION

  • US 20200130067A1
  • Filed: 10/16/2019
  • Published: 04/30/2020
  • Est. Priority Date: 10/31/2018
  • Status: Active Grant
First Claim
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1. A main shaft for a rotating tool provided with a tool seating check function comprising:

  • a rotating tool held in a tool holder, the tool holder comprising a male tapered portion, and the tool holder being rotated by the rotating-tool main shaft; and

    a hollow main shaft that has a circular conical hole which is formed in a tip and which corresponds to the male tapered portion, the hollow main shaft comprising a fluid passage to detect that the male tapered portion is properly attached to the circular conical hole, and an opening to blow out a fluid,wherein the opening is provided in a portion offset from the circular conical hole.

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