| 摘要 |
<p>The present invention relates to a magnetic substance holder, which includes a permanent magnet, a pole piece coupling one of N and S poles of the permanent magnet and having a holding surface, a magnetizable material having an end surface contacting the pole piece, a coil surrounding the magnetizable material, and a control device controlling electric current flowing through the coil to control the magnetization of the magnetizable material. According to the present invention, optimal holding force can be realized for the same area, and the magnetic substance holder can be readily expanded to a module or be miniaturized according to the size of the interior of a device on which the magnet holder is installed, and can be widely applied to various equipment used in the industrial field such as lifts, chucks, locking devices, applied machines, and robots.</p> |
