Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Vision Guided Multi-Probe Assembly of 3D Microstructures

Published

Author(s)

John D. Wason, John T. Wen, Young M. Choi, Jason J. Gorman, Nicholas Dagalakis

Abstract

This paper describes the operator assisted automated assembly of a 3-legged spatial platform by using a vision guided multi-probe assembly process. This is the first step towards the ultimate goal of building a microscale active spatial platform. Two issues are highlighted in this paper: contact management and vision feedback. Using multiple probes for part grasping and manipulation has the advantage of robustness and versatility as compared to micro-grippers. However, the contacts between the probes and the part need to be carefully managed to ensure a grasp that is stable for part pick-up and yet manipulable to allow part motion in a controlled fashion. By using vision guidance, the probes can be coordinated to grasp the parts and lift them off the die securely and reliably.We show that the contacts act as point contacts with friction, so when a part is pressed against a stationary probe, the part rotates about the axis between the contacts, changing its orientation so it may be inserted into a slot in the substrate. We have demonstrated that the three legs can be assembled in a fully automated fashion via stereo vision feedback. The platform is at present assembled via tele-operation. The assembled microstructure measures 450 μm x600 μm. We are now working on the full automation of the assembly onto a substrate populated with MEMS actuators.
Proceedings Title
2010 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2010)
Conference Dates
October 18-22, 2010
Conference Location
Taipei, TW

Keywords

Assembly, Controls, Nanopositioner

Citation

Wason, J. , Wen, J. , Choi, Y. , Gorman, J. and Dagalakis, N. (2010), Vision Guided Multi-Probe Assembly of 3D Microstructures, 2010 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS 2010), Taipei, TW, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906146 (Accessed June 22, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 19, 2010, Updated October 12, 2021