Adaptive Robotic Welding Using Preview Vision Sensing of Joint Geometry

J. E. Agapakis; G. N. Epstein; J. M. Friedman; J. M. Katz; M. Koifman

doi:10.1117/12.937775

27 March 1987 Adaptive Robotic Welding Using Preview Vision Sensing of Joint Geometry

J. E. Agapakis, G. N. Epstein, J. M. Friedman, J. M. Katz, M. Koifman

Proceedings Volume 0726, Intelligent Robots and Computer Vision V; (1987) https://doi.org/10.1117/12.937775
Event: Cambridge Symposium_Intelligent Robotics Systems, 1986, Cambridge, MA, United States

Abstract

Conventional robotic welding systems can only be used in applications where parts are highly repeatable and well fixtured. In this paper, vision sensing and processing techniques that permit in-process determination of the position and detailed three-dimensional surface geometry of a weld joint are presented. Structured lighting in the form of a cone of laser light and specialized vision processing schemes are used to obtain three-dimensional geometric surface descriptions from a two-dimensional TV image. This geometric description is used to define joint position, surface orientations, and a variety of cross-sectional measurements such as fill volume, preparation angles, gap size, and presence and dimensions of a previously deposited weld bead or tack weld. The visual feedback is then used for real time control of the torch position relative to the weld joint, and for in-process adjustment of welding process parameters such as welding arc voltage, and wire feed rates.

Citation Download Citation

J. E. Agapakis, G. N. Epstein, J. M. Friedman, J. M. Katz, and M. Koifman "Adaptive Robotic Welding Using Preview Vision Sensing of Joint Geometry", Proc. SPIE 0726, Intelligent Robots and Computer Vision V, (27 March 1987); https://doi.org/10.1117/12.937775

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available