公开(公告)号：US5152641A

公开(公告)日：1992-10-06

申请号：US776836

申请日：1991-10-15

申请人： Michael S. Overmyer ,  Thomas A. Peitz, Jr.

发明人： Michael S. Overmyer ,  Thomas A. Peitz, Jr.

IPC分类号： B23B39/22 ,  B28D1/04 ,  B28D7/00 ,  G05B19/18 ,  G05B19/404

CPC分类号： B23B39/22 ,  B28D1/041 ,  B28D7/005 ,  G05B19/182 ,  G05B19/404 ,  B23B2226/45 ,  G05B2219/37251 ,  G05B2219/37409 ,  G05B2219/50027 ,  G05B2219/50306 ,  G05B2219/50308 ,  Y10T408/03 ,  Y10T408/08 ,  Y10T408/378 ,  Y10T408/455

摘要： A method and apparatus for controlling glass drilling in which the starting position for the drill bit is calibrated prior to drilling. The drill bit is initially spaced close to the surface to be drilled and the rotating bit is slowly advanced toward the surface while a cooling fluid is discharged through an axial passage through the bit. Contact between the bit and the surface is determined by sensing either an increase in the fluid back pressure or a decrease in the fluid flow rate. The determined bit position is stored and used as a starting position when subsequently drilling holes. The starting position may be modified for subsequent workpieces to compensate for bit wear.

摘要翻译： 一种用于控制玻璃钻孔的方法和装置，其中在钻孔之前校准钻头的起始位置。 钻头最初间隔接近待钻孔的表面，并且旋转钻头朝着表面缓慢前进，同时冷却流体通过穿过钻头的轴向通道排出。 通过感测流体背压的增加或流体流速的降低来确定钻头和表面之间的接触。 随后钻孔时，确定的钻头位置被存储并用作起始位置。 可以修改起始位置用于后续工件以补偿钻头磨损。