TOOLING FOR LOCAL SPARK PROCESSING OF INNER SURFACES OF BODIES OF REVOLUTION Russian patent published in 2014 - IPC B23H9/04 B23H7/26 

FIELD: machine building.

SUBSTANCE: invention relates to machine building It is intended for machining of cylinder-shape mechanisms and parts, in particular, ICE cylinder inner surfaces, hydraulic cylinder bodies, bearings seats, etc. proposed tooling comprised rotary axial electrode holder and self-aligning three-point mechanism The latter can locate and centre rigid bearing bar inside machined part Parallelogram-type actuator is articulated with said bar to slide on and turn about machined part axis Said actuator has current conducting bus at bottom plate to feed electrode holder to machined surface and to press it there against to required force.

EFFECT: local spark processing at no direct view of working zone.

5 dwg, 2 tbl