THRUST NUT DRIVER Russian patent published in 2013 - IPC B25B21/02 

FIELD: process engineering.

SUBSTANCE: invention relates to machine building, particularly, to thrust nut driver control systems and may be used in automation of threaded joints assembly. Proposed nut driver comprises body 1 accommodating drive shaft 4, spindle anvil 11 with working cams 10, striker 7 spring-loaded toward spindle anvil 11. Besides it comprises multiplexer 18 with output shaft making the extension of drive shaft 4, modulation disc, and spindle turn angle measurement control system. Said spindle turn angle measurement control system consists of electric contacts 35, 36, conductors 33, 34, cam 40, pulse counter 32, closing circuit contact 42, and relay 31. Modulation disc is fitted on output shaft of multiplexer 18 and consists of two elements 26, 27 with metal pins extending there through to make electric circuit with contacts 35, 36 of said spindle turn angle measurement control system. Striker 7 on the side of spindle turn angle measurement control system cam 40 features tapered surface.

EFFECT: higher accuracy of measurement.

1 dwg