| 摘要 |
A method for determining the optimum control parameter values for a screw joint tightening process carried out by a power wrench which is controlled by a programmable control system utilising the determined parameter values, comprising the steps of providing the control system with screw joint characteristic parameter values and operation parameter values characteristic for the actually used power wrench, simulating mathematically the tightening process by using the screw joint and power wrench characteristic parameter values as well as pre-chosen operation control parameter values, and evaluating the result of the simulated tightening process in view of predetermined evaluation criteria, thereby determining the suitable operation control parameter values to used during production tightening of the actual type of screw joint. <IMAGE> |
