BATTERY COMPONENT ASSEMBLING METHOD, CLAMP AND WELDING DEVICE

Provided is a battery assembly assembling method, including: acquiring a pressing displacement amount of a pressing device; controlling a clamping device to clamp a battery assembly if an absolute value of a difference between the pressing displacement amount and a standard pressing displacement amount is less than or equal to a preset threshold; acquiring a first actual displacement amount and a first clamping force of the clamping device; and completing assembling if an absolute value of a difference between the first actual displacement amount and a first standard displacement amount is less than or equal to a first displacement threshold, and an absolute value of a difference between the first clamping force and a first standard clamping force is less than or equal to a first clamping force threshold. Provided is a battery assembly clamp, including: a control unit, and a pressing device, a clamping device, a first feedback unit and a second feedback unit respectively electrically connected to the control unit, where the first feedback unit is configured to acquire a pressing displacement amount of the pressing device; and the second feedback unit is configured to acquire a first actual displacement amount and a first clamping force of the clamping device. Provided is a welding device, including the above clamp. The problem that a clamping position and a clamping force of the battery assembly cannot be determined is solved.