B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
80/28, 29/50
B21C 37/30 (2006.01) B21D 53/28 (2006.01) B21H 5/02 (2006.01) B23F 23/04 (2006.01) B23P 9/00 (2006.01) B23P 15/14 (2006.01)
Patent
CA 1058391
APPARATUS AND METHOD FOR BURNISHING GEARS ABSTRACT OF THE DISCLOSURE Apparatus and a method for burnishing gears incorporat- ing a pair of gear racks having opposed forming faces with teeth spaced therealong for meshing with a toothed gear received there- between to provide the sole support for the gear as it is rotated by rack movement while the rack teeth burnish the gear teeth. A loader is positioned on one lateral side of the gear racks and includes a movable gripper mechanism that positions the gears to be burnished between the racks for meshing engagement therewith as the racks are driven by a reciprocal drive mechanism of the apparatus. Grippers of the gripper mechanism grip the gears dur- ing loading and have pushers that push the burnished gears to a delivery guide on the opposite lateral side of the gear racks from the loader. A movable guide member of the guide is fixed to one of the gear racks and receives the burnished gears to feed the gears to a stationary guide member as a pusher fixed to the other gear rack moves the burnished gears during reciprocal driving of the gear racks. A conveyor for feeding the loader includes gear carriers supported by a continuous chain trained over a pair of spaced sprockets. One of the sprockets is adjustably supported by a chain tensioner while the other sprocket is driven by a cylinder and indexing arm through a one-way clutch in order to move the chain and the gears carried by the carriers on the chain.
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