CAPSTAN OF A LATHER Russian patent published in 1996 - IPC

FIELD: machining. SUBSTANCE: capstan has casing 1 with taper tail 2, and multi-position rotary tool unit 4 installed on axle 3 of casing 1. Tool holders 4a are fastened in ports of the unit. Casing 1 is provided with fixer 5 and spring 5a for aligning and keeping tool holder 4 at the position, and with push rod 6 to change tool by applying force to lever 7. The push rod is concentrically installed in the central blade of fixer 5. Fixer 5 is made in the form of sleeves concentrically installed and interrelated. Taper part of the fixer 5 is used to position tool unit 4 on unit 1. Spring 5a actuates fixer 5 to provide accurate alignment of tool about machine spindle axis required by technology. EFFECT: high accuracy. 2 dwg