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

Volume

1

fYear

2011

fDate

22-24 Aug. 2011

Firstpage

394

Lastpage

398

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Strategic Technology (IFOST), 2011 6th International Forum on

Conference_Location

Harbin, Heilongjiang

Print_ISBN

978-1-4577-0398-0

Type

conf

DOI

10.1109/IFOST.2011.6021048

Filename

6021048