Automatic chamfering machine
 An automatic chamfering machine for chamfering the edge of teeth of internal gears or edge of slots of ring-like clutches is disclosed. Once the machine is set on the work (i.e., an internal gear or a ring-like clutch), it can be intermittently moved along the work at an interval corresponding to one tooth or slot to effect chamfering. The automatic chamfering machine according to the invention has at least one drive roller, which is held attracted to the work through excitation of a solenoid so that the machine will not fall from the work. The chamfering machine is moved along the work to an extent corresponding to one tooth, for instance, with the rotation of the drive roller attracted to the work to be automatically stopped at the next chamfering position. Then, a cutter is moved along the tooth surface while being rotated to effect chamfering. When chamfering for one tooth is completed, the drive roller is moved along the work to an extent corresponding to one tooth to be stopped at the next chamfering position. The cutter then is again moved along the tooth surface while being rotated to effect chamfering. This operation is repeatedly to effect chamfering of all the teeth. 
Kabushikigaisha Iwasa Tekkosho
B Y B B B
B23F Y10T B23F B23F B23Q
inventional additional inventional inventional inventional
Mamoru Takeji
Tokita Nakano