Cutting by use of rotating axially moving tool – With means to apply transient – fluent medium to work or product
Patent
1993-12-02
1995-04-11
Bishop, Steven C.
Cutting by use of rotating axially moving tool
With means to apply transient, fluent medium to work or product
279 20, 279 464, 408 61, 409136, B23B 3120, B23B 5106, B23C 528
Patent
active
054052203
ABSTRACT:
An annular front end base portion, a main portion and an annular rear end base portion form all together a substantial portion of a collet provided with a tapered outside surface adaptable closely in a tapered hole of a collet chuck and a tool holding hole is formed in the axial portion of the collet. In the main portion are formed a first set of axially long radial slits opening at the end surface of the front end base portion and terminating to be closing in the rear end base portion and a second set of axially long radial silts opening at the end surface of the rear end base portion and terminating to be closing in the front base portion. Each of the radial slits of the first set and each of the radial slits of the second set are arranged at proper angular intervals and alternately along the peripheral direction of the collet, and respective zigzag paths are formed which are closed over the whole peripheries of the outside and inside surfaces of the collet, respectively. The outside and inside surfaces of the collet contact closely the inside surface of the tapered hole and the outside surface of a tool fitted in the tool holding hole, respectively along the respective zigzag paths. The collet is able to contract radially owing to the radial slits of the two sets and the cutting oil supplied to the collet flows out of the collet outwards only through jets provided for feeding oil.
REFERENCES:
patent: 4640652 (1987-02-01), Rivere, Jr.
patent: 4705439 (1987-11-01), Hoyle et al.
patent: 4817972 (1989-04-01), Kubo
patent: 4955764 (1990-09-01), Reinauer
patent: 5028178 (1991-07-01), Ronen
Bishop Steven C.
Drucker William A.
NT Tool Kabushikikaisha
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