Locking procedure for screw driven by automatic tool used in motor vehicle assembly includes initial, final locking and validation stages

摘要

#CMT# #/CMT# The procedure consists of an initial pre-locking stage in which an automatic tool turns the screw to a pre-set torque, a second locking stage that turns the screw to a final locking torque with account given to a signal representing the angle of rotation, and a validation stage in which the angle of rotation is compared with a predetermined angle. In addition, warning signals are given when the angle of rotation is greater than the predetermined angle. #CMT#USE : #/CMT# Fixing screws during motor vehicle assembly. #CMT#ADVANTAGE : #/CMT# The procedure ensures that screws are tightened to a pre-set torque and no more. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a flow chart of the screw fixing procedure's stages. (Drawing contains non-English language text).