ACCEPTANCE DETERMINATION DEVICE AND ACCEPTANCE DETERMINATION METHOD

摘要

To make it possible to detect slide of a joint component.SOLUTION: An acceptance determination device 1 performs acceptance determination of resistance-welding for a joint component to which the other end of a bar member having fixed one end is connected, of which a side face is tapered, which is inserted in a hole provided in a component to be joined, and of which the side face is joined to the component to be joined by resistance-welding. The acceptance determination device comprises: a waveform acquisition part 11 which acquires voltage waveform information on resistance-welding for the joint component; and a determination part 12 which determines that resistance-welding for the joint component 26 is failure when voltage waveform information acquired by the waveform acquisition part 11 indicates occurrence of voltage rise equal to or more than a second threshold after a voltage has lowered to a first threshold via a peak voltage after start of electric conduction.SELECTED DRAWING: Figure 5