Inspection method for fixed-torque prying inspection of box body spot welding spots

• Main Authors: BI JING, ZHU YARONG, ZHANG JIE, SONG JIANLING, LIU HANWEI, SUN CHANGXIN, WANG WEIXIN, FANG HAODI, LIU XIAOWEN, LI BIN, WANG HE, TAKAMOTO YASUSHI, YANG ZHONGBAO, MENG XU, YANG CHENG, ZHANG YANFENG, LI ZULIANG
• Format: Patent
• Language: Chinese; English
• Published: 04.03.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention provides an inspection method for fixed torque prying inspection of box body spot welding spots, which comprises the following steps: carrying out a prying test on a spot welding area through a digital display torque wrench, and recording a tolerance torque value of a qualified point; a worker records pressure data that the torque value of the digital display torque wrench reaches a tolerance torque value through a detection platform of the calibrator; a digital display torque wrench is replaced by a mechanical torque wrench; quantitative detection data is realized by adjusting a force limiting allowable value of the mechanical fixed torque wrench. According to the detection method, the digital display torque wrench is used for measuring the detection torque value, then the detection torque value is converted into the mechanical wrench for operation, operation is convenient, the problems of uniformity and quantifiability of the welding spot quality prying detection standard are effectively solve