Title: Grinding apparatus

Abstract: A grinding apparatus and method in which at least two grinding wheels are coaxially and rotatably supported on a common spindle and are juxtaposed with a worktable for a workpiece. A pulse motor on either the worktable or the spindle displaces the wheels and the workpiece relatively along a Z-axis orthogonal to the spindle axis and another pulse motor effects relative displacement of the wheels and worktable along an X-axis which is normal to the Z-axis and is codirectional with the spindle axis. Yet another motor serves to relatively displace the wheels and worktable along a Y-axis which is normal both to the Z-axis and to the X-axis while a numerical controller applies control-signal pulses to the Z-axis displacement and the X-axis displacement motors.

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Inventors: Inoue, Kiyoshi (Tokyo, JP)

Application Number: 903062
Filing Date: 1978-05-05
Publication_date: 1980-10-07
Assignee: Inoue-Japax Research Incorporated (Yokohama, JP)
Primary Class(es): 451/5 451/11, 451/14, 451/179, 451/362
Other Classes:
US Patent Ref:

Re28766	Apr, 1976	Villano	51/165.
2248143	Jul, 1941	Weber	51/3.
2298496	Oct, 1942	Metzger	51/3.
2420504	May, 1947	Stewart	51/3.
3019562	Feb, 1962	Price	51/3.

Other Refs: 2623812

Dec, 1977	DE

Primary Examiner: Whitehead, Harold D.
Assistant Examiner:
Attorney: Ross; Karl F.