TOOL BREAKAGE DETECTING DEVICE

申请公布号：JP2000141169(A)

申请号：JP19980312405

申请日期：1998.11.02

申请公布日期：2000.05.23

申请人：

NIIGATA ENG CO LTD

发明人：KUBOTA TOSHIAKI

分类号：B23Q17/09;B23B49/00;(IPC1-7):B23Q17/09

主分类号：B23Q17/09

摘要：PROBLEM TO BE SOLVED: To rapidly detect in a non-contact breakage of a tool. SOLUTION: A main spindle is moved from a machining completion position A to a tool exchange position C through a tool detecting position B togetherwith a tool 2. An induction conductive type non-contact contact switch 1 transmits information on whether the cutting edge 2a thereof enters a magnetic field without contact with a tool 2 to a sequencer 7 at a point of time when the tool 2 is moved to a detecting position B. The sequencer 7 decides it based on the information that when the cutting edge 2a enters a magnetic field, the tool is normal and when it does not enter it, the tool is broken.

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