JPS6471654A - Double end grinding method and device therefor - Google Patents

Abstract

PURPOSE:To promote the improvement of grindability increasing a peripheral speed by rotating a pair of parallel disk grinding wheels in an equal or reverse direction while moving a workpiece to pass through a clearance between the grinding wheels along a straight line in a specific distance from the axial center and preventing partial blinding. CONSTITUTION:A workpiece feed mechanism fixes a workpiece W while moves it to pass through between grinding wheels 10, 10 along a passing route T in a distance H apart from an axial center O of the grinding wheel 10 by 60-90% its radius. Next in accordance with a width of the workpiece W, moving shaft supporting parts 13, 13, after a distance between the grinding wheels and an axial line angle are adjusted, rotating each grinding wheel 10 in a high speed, when the workpiece feed mechanism is actuated, the workpiece W passes through between the grinding wheels 10, 10 along the passing route T, and both side surfaces of the workpiece W are ground. By the grinding thus performed, as the grinding wheel rotates the chip is quickly removed, further an abrasive grain layer 11 prevents its equal part from continuously coming into contact with the workpiece W, consequently grinding fluid improves its spray preventing blinding from being easily generated in the abrasive grain layer 11. While because the grinding is performed in only the peripheral part of the abrasive grain layer 11, providing a large peripheral speed of the grinding surface brought into contact with the workpiece W, grindability is improved.