US 4,062,150 AGranted

Centerless grinding method and device using same

AssigneeHitachi, Ltd.

InventorsMasami Masuda, Syuhei Takasu

Life of this patent

Estimating the term…

Loading patent…

Abstract

A centerless grinding method and a device using same, in which: a work having a cylindrical stem portion and a flange portion is supported on a supporting plate; a regulating wheel is provided with a lead angle so as to feed the work in its axial direction; the regulating wheel is fed in the direction substantially perpendicular to the axis of the grinding wheel, with the axis of the regulating wheel being inclined in a manner the peripheral surface of the regulating wheel may be maintained in parallel with a given conical peripheral surface of the grinding wheel which has a square or right-angled edge in its cross section; and the aforesaid grinding wheel has peripheral surfaces consisting of two continuous frusto-conical surfaces; whereby the stem portion and an inner face of the flange portion of the work may be ground at the same time.

Claims21

Dependent claims

A centerless grinding device for grinding surfaces of a workpiece comprising:

a grinding wheel with first and second working surfaces,
supporting means for supporting the workpiece with first and second workpiece surfaces which respectively contact with the first and second working surfaces of the grinding wheel during grinding operations, said workpiece surfaces being angularly disposed with respect to one another, said second working surface being angularly disposed with respect to said first working surface and being configured to limit workpiece movement in an axial direction during grinding operations,
a regulating wheel with a peripheral surface which contacts with the first workpiece surface, said regulating wheel having its axis inclined at a lead angle to the axis of the workpiece in the vertical plane so as to force the workpiece in the axial direction of the workpiece relative to the grinding wheel and thereby to cause the contact of the second workpiece surface with the second surface of the grinding wheel upon movement of the regulating wheel in a predetermined direction toward said first workpiece surface, and
feeding means for feeding the regulating wheel in a predetermined direction so as to grind the first and second workpiece surfaces.

1 more element

Dependencies are inferred from the claim text.