Real-time monitoring of machine performance
The present invention features a method and apparatus for improving the performance of a component placement machine. The machine includes an imaging unit that moves in the X-Y plane and captures images to provide real-time monitoring of the performance of the machine.
1 . A method for monitoring the performance of a component placement machine, the steps comprising:
a) providing a component placement machine comprising a housing adapted for movement along an X and a Y plane above a printed circuit board and having a mechanism attached thereto;
b) providing an imaging unit comprising a camera and a light source contiguous with said housing;
c) capturing a first image with said imaging unit of an imaging area before said mechanism performs a process;
d) capturing a second image with said imaging unit of an imaging area after said mechanism performs a process; and
e) comparing said first image to said second image.
2 . The method of claim 1 , the steps further comprising:
allowing said component placement machine to continue performing when said first and said second images are different.
3 . A method for use with a component placement machine comprising:
obtaining a first image of an imaging area prior to the performance of an activity;
obtaining a second image of said imaging area after the performance of said activity;
comparing said first image and said second image.
4 . The method of claim 3 , wherein said activity is selected from the group consisting of picking a component, dismounting a nozzle, mounting a nozzle, and combinations thereof.
5 . The method of claim 3 , further comprising obtaining a third image of said imaging area during the performance of said activity.
6 . The method of claim 3 , further wherein said obtaining is done from a location that is contiguous with a rotatable frame of said machine.