Patent ID: 7988536
Filing Date: 2011-08-02
Classification: B24B

Abstract:
1. A grinding method comprising: providing a holding device comprising a first rotatable pressing portion and a second rotatable pressing portion; providing a base having a groove and placing a plurality of workpieces into the groove; placing two blocking members in the groove with the plurality of workpieces between the two blocking members, wherein the two blocking members are identical in shape with a finished product; moving the two blocking members towards the workpieces to make the workpieces closely contact each other and be coaxial with each other; comparing the surfaces of the two blocking members with a surface of each of the plurality of workpieces so as to determine whether a size of each of the workpieces is large enough for forming a plurality of the finished products; removing the two blocking members; holding the plurality of workpieces between the first pressing portion and the second pressing portion after removing the two blocking members, when the size of each of the workpieces is large enough for forming the plurality of finished products; removing the base and driving the first pressing portion and the second pressing portion to rotate clockwise or counter-clockwise, after holding the plurality of workpieces; and grinding the plurality of workpieces held between the first pressing portion and the second pressing portion, and then obtaining the plurality of finished products.