Patent ID: 7037176
Filing Date: 2006-05-02
Classification: B24B

Abstract:
1. A through-in grinding method for centerless-grinding a cylindrical work being machined having a conical surface at an end thereof, comprising: supporting said work being machined by a blade and a regulating wheel to which a feed angle is imparted; performing through-feed grinding, using a grinding wheel having cylindrical and conical surfaces, and causing the cylindrical surface of the grinding wheel to contact the cylindrical surface of said work being machined while causing said grinding wheel to revolve; and stopping through-feed grinding when the conical surface of said work being machined that was moved in the axial direction by said through-feed grinding makes contact with the conical surface of said grinding wheel, and grinding the conical and cylindrical surfaces of said work being machined in a condition closely approximating in-feed grinding, wherein, when said work being machined has been ground in a condition closely approximating in-feed grinding after being subjected to through-feed grinding, and if it is judged that said work being machined has been ground and finished to prescribed dimensions, said regulating wheel is retracted in a direction that separates same from said blade; and, by causing said work being machined to pass between said regulating wheel and said blade and drop down, the quasi in-feed grinding is terminated, and said work being machined is unloaded.