Patent ID: 7024785
Filing Date: 2006-04-11
Classification: B24B,G01B

Abstract:
1. A method for checking a crankpin, orbitally rotating about a geometrical axis, in a numerical control grinding machine including a worktable, defining said geometrical axis, and a grinding-wheel slide carrying a grinding-wheel, by means of an apparatus with a Vee-shaped reference device, a measuring device movable with the Vee-shaped reference device, coupling elements movably connected to the grinding-wheel slide and carrying the Vee-shaped reference device and the measuring device, and a limiting device with at least one pair of mechanical abutting surfaces, the method including the following steps for controlling displacement of the apparatus from a rest position to a checking condition: controlling movements of the coupling elements, causing, in the course of said movements, the mechanical abutting surfaces of said at least one pair to cooperate with each other, guiding, by at least said abutting surfaces, movements of the Vee-shaped reference device towards the crankpin to be checked, causing, in the course of said movements of the Vee-shaped reference device, mutual contact between the orbitally rotating crankpin and the Vee-shaped reference device, and causing the mechanical abutting surfaces of said at least one pair to disengage from each other.