Back to results
US 4,170,851 AGranted
Grinding machine
AssigneeCincinnati Milacron-Heald Corporation
InventorEllsworth C. Enos
Life of this patent
Estimating the term…
Abstract
Grinding machine for bearing races and the like in which a grinding plane extending transversely of the race axis is adjusted axially in accordance with variations in the end-to-end dimension of the race to provide a symmetrical track or groove of controlled width.
Claims4
Grinding machine for finishing a radial surface on a workpiece having parallel radial end surfaces whose spacing varies within a range of tolerance and which are parallel to said radial surface, comprising:
- (a) a base,
- (b) a workhead mounted on the base for supporting the workpiece so that one of said radial end surfaces is located at a fixed location and for rotating it about a workpiece axis perpendicular to the said radial surfaces,
- (c) a wheelhead mounted on the base and carrying an abrasive wheel with a radial surface for rotation about a wheel axis,
- (d) feed means bringing about relative feed movement between the workhead and the wheelhead to cause the said radial surface of the wheel to grind the radial surface of the workpiece,
- (e) a gage for measuring the distance between the radial end surfaces of the workpiece, and
- (f) a control for determining the difference between the said measured distance and the corresponding distance between the radial end surfaces of a standard workpiece, obtaining one-half the said difference, and causing the said feed means to produce the feed movement in a direction parallel to said workpiece axis in an amount equal to a predetermined amount adjusted by the said one-half the said difference.
3 more elements
Dependencies are inferred from the claim text.