| 摘要 |
<p>APPARATUS FOR CLAMPING WORK PIECES The clamping apparatus provides for a positionally accurate clamping of a work piece having at least one shaft with a polygonal cross section. To this end, the clamping apparatus is provided with a clamping body member, having a clamping chamber with polygonal cross section adapted to receive the shaft of the work piece. The clamping body member is provided with clamping means to clampingly fix the shaft to the clamping body member, and with reference surfaces for determining the position of the work piece in X- and Y-directions. The reference surfaces are constituted by stop pin members inserted into bores provided in the clamping body member, whereby the stop pin members are made of a material that is harder than the material of the clamping body member. The stop pin members are of cylindrical shape, whereby the bores receiving the stop pin members open into the clamping chambers such that a small portion of each stop pin member protrudes into the interior of the clamping chamber.</p> |
