| 摘要 |
PURPOSE: An apparatus and method to perform vehicle assembly quality control in an efficient manner by monitoring the blank state before and after the welding process. CONSTITUTION: An apparatus comprises a blank transfer sensor(10) mounted to a weld line, and which senses the transfer state of the blank entering the weld line; a blank sensor(20) for measuring the surface of the blank transferred to the weld line, before and after the welding process; a memory(40) for storage of the surface data of the blank entering the weld line; a welding robot(50) for performing spot welding for the blank entering the weld line, in accordance with the drive control signal; a control unit(30) for generating a drive control signal to the welding robot when the blank surface data is input from the blank sensor, at the state where the blank enters to the weld line, and generating a control signal by comparing the blank surface data before and after the welding process and judging whether the difference between the blank surface data is within a preset range; a display unit(60) for displaying blank surface data in accordance with the display unit drive control signal generated from the control unit; and a warning unit(70) for warning abnormality of blank surface in accordance with the warning unit drive control signal generated from the control unit.
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