Oscillatory motion device for drill press

Details Oscillatory motion device for drill press Oscillatory motion device for drill press

B - Operations, Transporting

23

B

B23B 39/02 (2006.01) B23Q 1/01 (2006.01) B23Q 1/48 (2006.01) B23Q 5/14 (2006.01) B24B 27/00 (2006.01) B24B 41/04 (2006.01) B24B 47/10 (2006.01)

Patent

CA 2188501

A drill press has a drive motor with output shaft that drives a chuck through a rotatable and vertically displaceable quill and a first drive coupling which includes a pair of pulleys, such as cone pulleys, and a belt extended between the cone pulleys. A rotary power take-off in the form of an additional pair of pulleys and a drive belt extracts rotary power from the drive coupling between the motor and the chuck and transfers it to an oscillatory motion device. The device includes a worm and worm gear and an eccentrically mounted arm which convert rotary motion from the rotary power take-off into a reciprocating linear motion. A lever is pivotally mounted to the device with one end engaged with the quill and a remaining, opposing end coupled with the arm. Reciprocation of the arm causes reciprocation of the lever which causes reciprocation of the quill, chuck and any tool held in the chuck. The arm is releasably engaged with and is coupled with the lever through a detent block.

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