Patent ID: 6666061
Filing Date: 2003-12-23
Classification: B21H,B24B,C21D

Abstract:
Apparatus for deep rolling recesses and radii which delimit the journal bearings of crankshafts in the axial direction respectively on both sides, the apparatus comprising:at least one deep-rolling tool of a deep-rolling machine having a plurality of deep-rolling tools for the recesses and radii on both sides of the journal bearings of crankshafts, wherein the deep-rolling tool is provided at mutually opposing, first outer ends of two scissors-like equipment arms hinge-connected approximately at their longitudinal center; the at least one deep-rolling tool having a tool housing, in which a guide roller and at least one deep-rolling roller are rotatably supported and the guide roller has a radial spacing from the journal bearing of the crankshaft; a pressure-medium cylinder between two second outer ends of the equipment arms producing the deep-rolling force; a sensor for sensing the depth of penetration of the deep rolling roller in recesses and radii of the crankshaft; a computer connected to the sensor storing the measured values and converting them into operands; and a plurality of control elements connected to the computer with one of the control elements controlling the revolution of the crankshaft and another of the control elements controlling the loading of the pressure-medium cylinder to produce the deep-rolling force as a function of the revolution of the crankshaft and the operands evaluated by the computer.