Quick stop device

Details Quick stop device Quick stop device

1995-01-25

1996-09-17

Briggs, William

Gear cutting, milling, or planing

Milling

Process

29DIG51, 73104, 82 111, 408 1R, 408241S, 409218, B23C 900, B23B 100, B23B 3500, B23Q 1709

Patent

active

055562418

ABSTRACT:
A quick stop device for abruptly interrupting the cutting of a workpiece by a cutter is disclosed. The quick stop device employs an outer housing connected to an inner workpiece holder by at least one shear pin. The outer housing includes an appropriate shank designed to be received in the spindle of a machine, such as a machine tool. A cutter, such as a drill bit, is mounted in a stationary position and the workpiece, mounted to the workpiece holder, is rotated during engagement with the cutter. A trigger system includes at least one spring loaded punch disposed for movement into engagement with the workpiece holder to abruptly stop rotation of the workpiece holder. This action shears the shear pin and permits continued rotation of the spindle and outer housing without substantially disturbing the chip root formed during cutting.

REFERENCES:
patent: 3753625 (1973-08-01), Fabrizio et al.
patent: 4576528 (1986-03-01), Sollami
patent: 4850753 (1989-07-01), Dudden
patent: 5127775 (1992-07-01), Broadbent et al.

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