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Tool adapter

  • US 4,579,487 A
  • Filed: 09/17/1984
  • Issued: 04/01/1986
  • Est. Priority Date: 09/17/1984
  • Status: Expired due to Term
First Claim
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1. In a machine tool adapter to be used in machining centers having computer numerical control and a spindle, said spindle controlled by computer numerical control, a spring loaded telescoping tool holder carried by said spindle, a tool adapter, an adapter body carried by said tool holder, a tool in said tool holder which contacts a work surface to cause the tool holder to telescope into the adapter body, a machine mounted electronic variable displacement transducer unit arranged to be actuated by telescopic motion of said tool holder, said transducer unit having electronic coupling means to the axis feed rate of the computer numerical control for controlling spindle deceleration from rapid traverse to slow traverse, said transducer producing a null signal when said tool holder is fully seated, said null signal transmitting work surface location to the computer numerical control to feed the spindle, tool holder and tool to a programmed depth into said work piece at a programmed feed rate.

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