By Topic

Parameter estimation during automated screw insertions

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Klingajay, M. ; Div. of Eng., King''s Coll., London, UK ; Seneviratne, L.D. ; Althoefer, K.

Threaded fastenings are a common assembly method, accounting for over a quarter of all assembly operations. Threaded fastenings are popular because they permit easy disassembly for maintenance, repair, relocation and recycling. Screw insertions are typically carried out manually and are a difficult problem to automate. As a result there is very little published research on automating threaded fastenings, and most research on automated assembly focus on the peg-in-hole assembly problem. This paper investigates the problem of automated monitoring of the screw insertion process. The monitoring problem deals with predicting the integrity of a threaded insertion, based on the torque vs. insertion depth curve generated during the insertion. The authors have developed an analytical model to predict the torque signature signals during self-tapping screw insertions. However, the model requires parameters on the screw dimensions and plate material properties, and some of these parameters are difficult to obtain. This paper presents a study on on-line parameter estimation during screw fastenings. A methodology for estimating the friction properties and screw-diameter during a general self-tapping screw insertion process is presented. It is shown that friction and screw-diameter required by the model can be reliably estimated on-line. Computer simulation results, with and without simulation noise are presented to validate the estimation procedure.

Published in:

Industrial Technology, 2002. IEEE ICIT '02. 2002 IEEE International Conference on  (Volume:2 )

Date of Conference:

11-14 Dec. 2002