초록

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.

대표청구항 ▼

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 sa

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.