公开(公告)号：US4954022A

公开(公告)日：1990-09-04

申请号：US367030

申请日：1989-06-16

申请人： James L. Underwood ,  Floyd K. Williams ,  Ricky W. Tumlin

发明人： James L. Underwood ,  Floyd K. Williams ,  Ricky W. Tumlin

IPC分类号： B23B35/00 ,  B23Q1/00 ,  B23Q1/48 ,  B23Q17/22 ,  G05B19/401 ,  G05B19/416

CPC分类号： G05B19/4166 ,  B23B35/00 ,  B23Q1/48 ,  B23Q17/2233 ,  B23Q17/2241 ,  G05B19/4015 ,  G05B2219/37405 ,  G05B2219/37413 ,  G05B2219/45221 ,  G05B2219/49237 ,  G05B2219/49243 ,  G05B2219/50353 ,  Y10T408/03 ,  Y10T408/175 ,  Y10T408/46 ,  Y10T408/545 ,  Y10T409/30112 ,  Y10T409/303808

摘要： There is disclosed a method for machining multiple holes in a workpiece to a uniform depth and at a predetermined angle to the surface of the workpiece. The method is performed by a numerically controlled machine tool which orients the workpiece in space with respect to a reference coordinate system which establishes an expected position of the surface of the workpiece. The actual position of the surface of the workpiece is determined by sensing contact between the workpiece and the boring tool. Once the actual position of the workpiece surface has been sensed, the tool is advanced a predetermined distance to provide a uniform depth cut. The expected position, the actual position, and the deviation between the two are recorded to assure that the surface of the workpiece is accurately sensed during subsequent machining steps. In order to minimize false premature sensing of the workpiece, the surface of the workpiece is coated with a nonconductive enamel, air is blown across the surface of the workpiece to remove debris, and an insulating liquid coolant/lubricant is used during the drilling of the workpiece.

摘要翻译： 公开了一种在工件上加工多个孔至与工件表面均匀的深度和预定角度的方法。 该方法由数控机床执行，该机床使空间相对于建立工件表面的预期位置的参考坐标系定位工件。 工件表面的实际位置是通过检测工件和钻孔工具之间的接触来确定的。 一旦已经检测到工件表面的实际位置，则工具前进预定距离以提供均匀的深度切割。 记录预期位置，实际位置和两者之间的偏差，以确保在随后的加工步骤期间准确地感测到工件的表面。 为了最小化对工件的假过早感测，工件的表面涂覆有不导电的搪瓷，空气吹过工件的表面以去除碎屑，并且在钻探期间使用绝缘液体冷却剂/润滑剂 工件。