Title :
Positioning for array micro-holes punching
Author :
Yanwu Liu ; Dongsheng Qu ; Xing Wu
Author_Institution :
State Key Lab. of Robot. & Syst., Harbin Inst. of Technol., Harbin, China
Abstract :
The forming technique of micro-punching is an important method for precision plastic machining of micro-parts, the micro-hole size must be sub-millimeter in two-dimension. To punch less than 200μm micro-holes on thin plate and realize precise positioning, established positioning system based on micro-vision technology and detected the location of thin plate by the image of reference hole. Proposed a localization algorithm based on coordinate transformation, eliminated the positioning error, and achieved micro-hole positioning by controlling the servo platform. Completed the study on the image processing method, identified the reference hole by Hough and least-square circle detecting method.
Keywords :
Hough transforms; computer vision; control engineering computing; forming processes; image processing; least squares approximations; machining; plastics; position control; production engineering computing; punching; servomechanisms; Hough-least squares circle algorithm; forming technique; image processing method; least-square circle detecting method; microholes punching array; microvision technology; positioning system; precision plastic machining; servo platform; Image edge detection; Image segmentation; Microwave integrated circuits; Position measurement; image; micro-holes; positioning; punching;
Conference_Titel :
Strategic Technology (IFOST), 2011 6th International Forum on
Conference_Location :
Harbin, Heilongjiang
Print_ISBN :
978-1-4577-0398-0
DOI :
10.1109/IFOST.2011.6021048
