发明名称 |
Drilling method and apparatus using variable dwell times. |
摘要 |
<p>A method and apparatus for increasing the speed and efficiency of a drilling machine during the drilling of holes in printed circuit boards includes automatically setting a dwell time according to one or more predefined drilling parameters. A plurality of dwell times which vary in accordance with the predefined parameters are stored in a computer memory device. A drilling machine controller automatically selects an optimal dwell time from the memory device according to the drilling conditions of a particular drilling operation so that the shortest feasible dwell time is used for obtaining a desired degree of hole placement accuracy and hole quality for the drilling operation. The apparatus is a drilling machine system that includes a controller which contains dwell times that vary in accordance with the diameter of a drill tool.</p> |
申请公布号 |
EP0581411(A2) |
申请公布日期 |
1994.02.02 |
申请号 |
EP19930303351 |
申请日期 |
1993.04.28 |
申请人 |
EXCELLON AUTOMATION |
发明人 |
PUMPHREY, DENNIS M. |
分类号 |
B26F1/16;B23B41/00;B23B49/00;B23Q41/00;G05B19/4093;H05K3/00;(IPC1-7):H05K3/00 |
主分类号 |
B26F1/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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