Flatness detection bench

The invention relates to the technical field of chain production, in particular to a flatness detection bench, which comprises a base, a sliding groove, a rail, a sliding block, a rotary connecting part, a stand column, a connecting rod and a flatness detector. Mounting plates are arranged at the front end and the rear end of the sliding groove and fixed to the base through bolts. A buffer deviceis fixedly welded to the side face, close to the sliding block, of the mounting plate, the buffer device comprises a stop block, a mounting block and a first spring, the first spring is fixedly weldedto the mounting plate, the stop block is slidably mounted in the first spring, and a mounting block is further arranged in the first spring; a positioning groove is formed in the left side of the upper end face of the base, and a clamping mechanism is fixedly welded in the positioning groove. The device is simple in structure principle, can greatly improve the flatness detection efficiency of thechain plate, avoids the im