QUALITY CHECK SYSTEM OF SPOT WELDING

摘要

A spot welding quality check system, which can be easily used and can be adapted to various situations. The check system has: a pair of electrodes configured to move toward or away from each other and apply current to a workpiece while pressurizing the workpiece; a displacement detecting part which detects an amount of displacement between the electrodes during spot welding; a checking part which estimates as to whether welding quality is good or poor by using an inner function, based on the detected amount of displacement; a correction receiving part which receives a correction by an operator regarding the estimated welding quality; and a learning part which updates the inner function based on an estimation result when the correction receiving part does not receive the correction, and updates the inner function based on a content of the correction when the correction receiving part receives the correction.

主权项

1. A spot welding quality check system for checking welding quality of spot welding, the system comprising:
a pair of electrodes which apply current to an object to be welded while pressurizing the object; a displacement detecting part which detects an amount of displacement between the pair of electrodes during spot welding is carried out; a checking part which estimates as to whether spot welding quality is good or poor by using an inner function, based on the amount of displacement between the pair of electrodes detected by the displacement detecting part; a correction receiving part which receives a correction by an operator with respect to as to whether the spot welding quality is good or poor estimated by the checking part; and a learning part which updates the inner function based on an estimation result by the checking part when the correction receiving part does not receive the correction by the operator, and updates the inner function based on a content of the correction by the operator when the correction receiving part receives the correction by the operator.