Working principle of gear shaper

1- gear blank; Double gear shaper cutter

Gear shaper is a machine tool for machining gear teeth by generating method with gear shaper cutter. When working, the gear shaper cutter cuts back and forth along the axis direction, and at the same time, the gear shaper cutter and the wheel blank rotate at a certain transmission ratio to complete the generating motion and form the involute tooth profile. In actual machining, the gear shaper cutter still needs to make radial cutting movement relative to the wheel blank until the tooth depth is full, and then the wheel blank must be rotated for a whole turn to machine all complete tooth profiles. In addition, the gear shaper cutter does not cut in the return stroke of reciprocating motion. In order to reduce the wear of the blade, the tool must be moved on the machine tool.

There are two types of gear forming machines: horizontal and vertical.