Papers by Keyword: Crankshaft Grinder

Abstract: The Contour accuracy of a crankshaft transition fillet is important for the crankshaft working reliability. The front end surface, cylindrical surface and the transition fillet of a crankshaft are grinded by an end cylindrical grinder. During this machining, due to the roller’s shape error and other factors, the contour error of the fillet cannot be guaranteed while 90 degree circular arc interpolation was taken. In this paper, a fillet contour error compensation model was established, the appropriate compensation macro program was designed, and the radical contour error compensation was implemented through 9 circular arcs approaching. The practical application is shown that the satisfactory result is achieved and this method can also be applied in the fillet compensation for wheel dressing when applying diamond disk or stylus.

Abstract: Siemens AG SINUMERIK820 is used for high-speed numerical control (NC) grinder, which integers CNC and PLC and is safe and reliable. The mechanism of high speed spindle is that the motor and spindle are combined as one body; rapid feedrate is realized by steep-lead ball screw and increasing feed servo motor rotation speed; the wear particles of wheel are mainly of cubic Boron Nitride and diamonds; and the machine is more stable and reliable.