| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a surface grinding method capable of reliably preventing a workpiece from being brought into contact with a surface plate when using a vertical double-head surface grinding machine to grind the workpiece, and improving grinding precision and a grinding stone life. <P>SOLUTION: When grinding the workpiece W, at first, the surface grinding method positions a grinding face 12 of a lower grinding stone 11 so that it is higher rather than a surface plate upper face 31. The surface grinding method positions a grinding face 22 of an upper grinding stone 21 to space an interval capable of carrying in the workpiece W between it and the grinding face 12 of the lower grinding stone 11. Next, a transfer arm 40 is rotated to carry in the workpiece W between the grinding face 12 of the lower grinding stone 11 and the grinding face 22 of the upper grinding stone 21. Next, a lower main shaft 10 is moved upward, and an upper main shaft 20 is moved downward to grind the upper and lower faces of the workpiece W. The lower main shaft 10 is returned to an original position to carry out the workpiece W onto the surface plate upper face 31. <P>COPYRIGHT: (C)2012,JPO&INPIT |
