B - Operations – Transporting – 23 – Q
Patent
B - Operations, Transporting
23
Q
29/7
B23Q 3/155 (2006.01) B23B 29/24 (2006.01) B23B 49/00 (2006.01) B23Q 7/14 (2006.01) B23Q 11/08 (2006.01) B23Q 41/00 (2006.01) G05B 19/4065 (2006.01)
Patent
CA 1090108
APPLICATION FOR CANADIAN PATENT SPECIFICATION ABSTRACT OF THE DISCLOSURE A numerically controlled machining center has a tool magazine, automatic tool changer, workpiece shuttle, and a workpiece magazine which holds enough workpieces for operation by the machining center for an entire shift of approximately eight hours. The numerical controls are programmed to perform predetermined machining opera- tions on each workpiece, in turn, and to replace each finished work- piece with a fresh workpiece at the end of each machining program. A proximity switch is mounted on the machining center for checking tools to detect broken or incorrect tools. The tools are positioned adjacent to the proximity switch and are rotated while the output of the proximity switch is counted for one complete rotation of the tool to determine the number of radially extending teeth on the tool. If the tool has too few or too many teeth, thus indicating a broken or incorrect tool, it is replaced by another tool of the same type. If no alternate tool is available in the tool magazine, the machin- ing cycle is automatically suspended. -1-
314000
Kearney & Trecker Corporation
Sherman
LandOfFree
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