Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Breakage Detection of Small-Diameter Tap Using Vision System in High-Speed Tapping Machine with Open Architecture Controller

  • Lee, Don-Jin (Engineering Research Center/Net Shape and Die Manufacturing, Pusan National University) ;
  • Kim, Sun-Ho (Department of Mechatronics Engineering, Dong-Eui University) ;
  • Ahn, Jung-Hwan (School of Mechanical Engineering, Pusan National University, ERC/NSDM)
  • Published : 2004.07.01
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Abstract

In this research, a vision system for detecting breakages of small-diameter taps, which are rarely detected by the indirect in-process monitoring methods such as acoustic emission, cutting torque and motor current, was developed. Two HMI (Human Machine Interface) programs to embed the developed vision system into a Siemens open architecture controller, 840D, were developed. They are placed in sub-windows of the main window of the 840D and can be activated or deactivated either by a softkey on the operating panel or the M code in the NC part program. In the event that any type of tool breakage is detected, the HMI program issues a command for an automatic tool change or sends an alarm signal to the NC kernel. An evaluation test in a high-speed tapping machine showed that the developed vision system was successful in detecting breakages of small-diameter taps up to M1.

Keywords

References

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