Error-proofing device and error-proofing method for pressing rivet screw

The invention relates to the technical field of battery box stamping processes, in particular to a mistake-proofing device and method for a pressing rivet screw. The mistake-proofing device comprises a mistake-proofing assembly fixed to a stamping die of a stamping machine tool; the mistake proofing assembly comprises a positioning block, a containing hole is vertically formed in the positioning block, a first positioning hole and a second positioning hole are formed in the two sides of the containing hole, a first detection pin and a second detection pin are arranged in the first positioning hole and the second positioning hole, and the rod portion of the first detection pin and the rod portion of the second detection pin are sleeved with reset compression springs. A first sensor and a second sensor are arranged on the positioning hole; a material ejecting rod is arranged at the bottom of the containing hole, and a material ejecting compression spring is arranged below the material ejecting rod. The mistake