| 摘要 |
A grinding head guiding apparatus is disclosed. The grinding head is driven by the linear motor which is constituted of a coil attached on an underside surface of the grinding head and a magnet attached on an upside surface. Horizontal guiding members are fixed on the base, and the grinding head is guided to the horizontal guide members. Then, a height of a portion opposing the coil and the magnet is approximately same as a height of the horizontal guide members guiding the grinding head. Besides, temporary supporting members are attached on the base so as to avoid sticking the coil to the magnet, when the coil is detached from the grinding head. Further, the grinding head has ribs therein, which define an approximately trapezoid-shaped space disposed a center of the grinding head and triangle-shaped spaces disposed both side of the trapezoid-shaped space. |
