Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product – Including tool with duct
Patent
1988-02-02
1991-12-31
Bilinsky, Z. R.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
Including tool with duct
10141H, 10 89F, 279 20, 408141, B23G 146
Patent
active
050767402
ABSTRACT:
A toolholder for holding a cutting tool such as a tap in the spindle of a machine tool includes a torque-limiting clutch to prevent excessive load being applied to the cutting tool. The clutch comprises at least one ball located in sockets in the driving and driven members but there is an arrangement, whereby at a predetermined critical torque, the ball moves axially out of engagement with one of the driving and driven members to disconnect the drive, and a deflecting device engages with the ball and moves it to a position where it does not encounter the socket from which it has been released or any similar sockets. This prevents wear on the clutch.
The toolholder also comprises a conduit system for cutting fluid being fed into a bore in the cutting tool. The conduit extends through a telescopic part of the toolholder and includes a flexible part deviating from a straight linear form, so that it can extend by tending to straighten, in order to accommodate telescopic extension of the toolholder.
REFERENCES:
patent: 2731538 (1956-01-01), Sherman et al.
patent: 2892387 (1959-06-01), Russell, Jr.
patent: 2969132 (1961-01-01), Stewart
patent: 3117329 (1964-01-01), Raymond
patent: 3487748 (1970-01-01), Grage
patent: 4088418 (1978-05-01), Dann
patent: 4396317 (1983-08-01), Staron et al.
Adams, III W. Thad
Bilinsky Z. R.
Braodbent Machine Tools (Halifax) Limited
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