Tooth profile machining for sprockets of roller chains - uses cylindrical tools for machining teeth of sprocket rotatable about its rotary axis

摘要

The tooth root between adjacent tooth flanks is formed according to a preset radius. The sprocket is rotatable about its rotary axis. In tooth division spacings are arranged using cylindrical tools. The tools have at least a dia., corresp. to the tooth roof radius for chip removing machining by rotary engagement with the tooth profiles of the rotary sprocket. The rollers (6) of the chain (3,4) are pref. abrasive tools and are brought into rotation by frictional abutment on a roller track (10) of fixed chain guide rail (7,8). ADVANTAGE - Finishing operation of sprocket tooth shape by chain rails etc..