DRIVING MEMBER Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: housing 1 has spring-loaded holder 3 with dogs and center embraced by elastic bushing 4. The holder is provided with inclined helical recesses 8 and teeth 9. Balls 10 are arranged between housing 1 and holder 3. As the cutting force increases during machining, the workpiece and holder 3 become decelerated. As a result, the helical projections of the elastic bushing slide along the helical recesses of holder 3, thus extending it towards the workpiece end face and increasing bite of teeth 9. EFFECT: stronger clamping of workpiece and prevention of its turning relative to housing. 5 dwg