MAGNETIC DRILL PRESS

摘要

A magnetic drill press includes a main housing, a drill unit supported by the main housing for relative movement therewith in a direction of a rotational axis of the drill unit, and a base coupled to the main housing for selectively magnetically latching to a ferromagnetic workpiece. The base includes a magnet holder, a fixed magnet assembly supported within the magnet holder, a rotatable magnet assembly supported within the magnet holder, and a transmission. The transmission includes an input, an output coupled to the rotatable magnet assembly for rotating the rotatable magnet assembly relative to the fixed magnet assembly through a predetermined rotation angle, and a gear train positioned between the output and the input. The gear train is configured to provide a variable gear ratio between the output and the input during at least a portion of the predetermined rotation angle.

主权项

1. A magnetic drill press comprising:
a main housing; a drill unit supported by the main housing for relative movement therewith in a direction of a rotational axis of the drill unit; and a base coupled to the main housing for selectively magnetically latching to a ferromagnetic workpiece, the base including
a magnet holder,a fixed magnet assembly supported within the magnet holder,a rotatable magnet assembly supported within the magnet holder, anda transmission including
an input,an output coupled to the rotatable magnet assembly for rotating the rotatable magnet assembly relative to the fixed magnet assembly through a predetermined rotation angle, anda gear train positioned between the output and the input, the gear train configured to provide a variable gear ratio between the output and the input during at least a portion of the predetermined rotation angle.