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    • 3. 发明授权
    • Holding device for a ceramic blank
    • 用于陶瓷坯料的保持装置
    • US07077391B2
    • 2006-07-18
    • US10433722
    • 2001-12-03
    • Frank FilserLudwig GaucklerPeter KocherHeinz LuethyPeter SchaererHeiner HoerholdPeter KreuderStefan Fecher
    • Frank FilserLudwig GaucklerPeter KocherHeinz LuethyPeter SchaererHeiner HoerholdPeter KreuderStefan Fecher
    • B23Q3/00
    • B23Q3/084A61C13/0003A61C13/0022
    • A holding device comprises a cylindrical or prismatic, porous ceramic blank and elements for clamping in a machine tool for processing the blank by removing material, in order to produce a ceramic workpiece. A narrow frame is fixed by an adhesive connection over at least part of the periphery of the blank, which is held without stresses, in the area of a plane encompassing the longitudinal middle axis (A) of the blank. The frame only covers a small part of the surface of the blank and can be detached and held in a stable holder with a clamping adapter, in such a way that it cannot slide. The entire combination is fixed in the machine tool in such a way as to be resistant to twisting and sliding. The ceramic workpiece emerges continuously form the ceramic blank without predetermination of the advance direction, until holding segments which can then only be freely selected according to number and location have been formed. The holding segments end on the residual material of the blank in the area of the frame or on the frame itself. The holding device is used especially as a workpiece for producing fully ceramic dental prostheses, particularly crowns or bridges.
    • 保持装置包括圆柱形或棱柱形多孔陶瓷坯料和用于夹紧在机床中的元件,用于通过去除材料来处理坯料,以便产生陶瓷工件。 在包围坯料的纵向中间轴线(A)的平面的区域中,窄框架通过粘合剂连接固定在坯料周边的至少一部分上,该坯料的周边保持无应力。 该框架仅覆盖坯件表面的一小部分,并且可以用夹紧适配器分离并保持在稳定的保持器中,使得其不能滑动。 整个组合固定在机床上,以防止扭转和滑动。 陶瓷工件在不预先确定前进方向的情况下连续地形成陶瓷坯料,直到形成仅能够根据数量和位置自由选择的保持段。 保持段在框架的区域中或框架本身上结束在坯料的残余材料上。 保持装置特别用作用于生产完全陶瓷牙科假体的工件,特别是冠或桥。