Resistance spot welding spot torque test system and test method

The invention relates to a resistance spot welding spot torque testing system and method. The system comprises a lower sample clamp, an upper sample clamp, a torque rod, a strain gauge, a strain gauge amplifier, a torsion angle sensor, a data recorder, a rotating shaft, a shell and a bearing. According to the method, the two strip-shaped pieces in the torsion sample are connected through the upper sample clamp and the lower sample clamp, operation is very convenient, the testing efficiency is greatly improved, the torque testing cost is reduced, and the advantages of being simple in structure, high in testing precision and the like are achieved. 本发明涉及一种电阻点焊焊点扭矩测试系统及测试方法，系统包括下试样夹具、上试样夹具、扭矩杆、应变计、应变计放大器、扭转角传感器、数据记录器、旋转轴、外壳、轴承。本发明的方法利用上试样夹具和下试样夹具将扭转试样中的两个条形件连接，操作十分方便，大大提高了测试效率，降低了扭矩测试试验费用，具有结构简单，测试精度高等优点。