Tool coupling between a toolholder and a machine spindle

Details Tool coupling between a toolholder and a machine spindle Tool coupling between a toolholder and a machine spindle

1990-03-06

1990-12-18

Howell, Daniel W.

Gear cutting, milling, or planing

Milling

Cutter spindle or spindle support

279 2R, 408239R, B23B 526

Patent

active

049782622

ABSTRACT:
A tool clamping device for machine tools comprises a draw bar that is axially displaceable inside a machine spindle and a locking element arranged in cooperation with the draw bar. The device becomes secured to a toolholder by effecting a relative movement between the draw bar and the locking element to effect a lateral displacement of the locking element into locking engagement with a shaft portion of the toolholder. Continued axial movement of the draw bar is transmitted as axial movement to the toolholder.

REFERENCES:
patent: 4226562 (1980-10-01), Schmid et al.
patent: 4352612 (1982-10-01), Benatti
patent: 4406195 (1983-09-01), Kruger et al.
patent: 4565476 (1986-01-01), Smith
patent: 4589808 (1986-05-01), O'Connor
patent: 4764064 (1988-08-01), Grienke
patent: 4843929 (1989-07-01), Anderson
patent: 4844671 (1989-07-01), Reinauer

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