Tool holder and cooling apparatus therefor

  • US 6,672,809 B2
  • Filed: 08/03/2001
  • Issued: 01/06/2004
  • Est. Priority Date: 09/19/2000
  • Status: Active Grant
First Claim
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1. A cooling apparatus for a tool holder, the tool holder comprising a holder body having at least one first fluid passage and at least one second fluid passage wherein first ends thereof fluidly communicate inside the holder body and second ends thereof terminate at an outer surface of the holder body, the cooling apparatus comprising:

  • a fluid guide for guiding a cooling fluid to the tool holder comprising a body defining a fitting hole for rotatably and removably receiving a portion of the holder body, and defining a first delivery passage having a first end in fluid communication with the at least one first passage at the outer surface of the holder body and a second delivery passage having a first end in fluid communication with the at least one second passage at the outer surface of the holder body, and further defining a first communicating passage having a first end in fluid communication with the first delivery passage and a second communicating passage having a first end in fluid communication with the second delivery passage; and

    an annular ring coaxially disposed about the fitting hole such that part of the holder body penetrates there through, wherein the ring defines an annular passage extending about the penetrating part of the holder body and is in fluid communication with the first and the second communicating passages.

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