Tool changing – Including machine tool or component – Rotary spindle machine tool
Patent
1998-07-21
1999-12-07
Howell, Daniel W.
Tool changing
Including machine tool or component
Rotary spindle machine tool
409233, B23Q 3157, B23C 526
Patent
active
059974559
ABSTRACT:
A tool clamp mechanism includes a hollow spindle in which a tool can be inserted, the spindle having at least one slot which is axially elongated, a draw bar movably provided in the spindle, and a spindle head which rotatably supports the spindle. A drive ring is provided around the spindle. The drive ring and the draw bar are connected by a connecting pin which penetrates the drive ring and the draw bar through the slot of the spindle. A pusher lever is provided to the spindle head, which urges the drive ring so that the draw bar releases the tool. The drive ring has a contact surface which the pusher lever abuts. The contact surface is positioned ahead of the connecting pin in a pushing direction of the pusher lever.
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Hashimoto Narihiko
Matsuoka Nobuyuki
Nagashima Ken
Brother Kogyo Kabushiki Kaisha
Howell Daniel W.
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