Tool holder assembly having cutting fluid supply circuit
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United States of America Patent
Stats
-
Jul 8, 1986
Grant Date -
N/A
app pub date -
Nov 15, 1984
filing date -
Dec 7, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tool holder assembly which comprises a tool holder adapted to be connected with a machine spindle for rotation together therewith, a stationary support member for rotatably supporting the tool holder and adapted to be connected to a fixed portion of the machine, a fluid supply circuit defined in the tool holder for the supply of a cutting fluid from an external source thereof towards a fluid discharge passage defined in a machine tool replaceably carried by the tool holder, and a vane-type displacement pump for forcibly pumping the cutting fluid from the fluid supply circuit to the fluid discharge passage in the machine tool for pouring the cutting fluid onto the workpiece being machined by the cutting tool. The displacement pump has its rotor constituted by a portion of the tool holder, and a pump casing constituted by a portion of the stationary support member.
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