Automatic disassembling device and method for air spring

The invention discloses an automatic disassembling device and method for an air spring. The disassembling device comprises a working platform and further comprises an auxiliary spring clamping mechanism, an air bag tightening mechanism and a retaining ring supporting mechanism which are arranged on the working platform. A mechanical clamping jaw is further arranged above the auxiliary spring clamping mechanism, the air bag tightening mechanism and the retaining ring supporting mechanism. The lower seam allowance of the air bag is pulled out from the auxiliary spring through the cooperation of the mechanical clamping jaw and the auxiliary spring clamping mechanism; and after the air spring is pulled out, the mechanical clamping jaw is matched with the air bag tightening mechanism and the retaining ring supporting mechanism to pull out the upper seam allowance of the air bag from the retaining ring, and the air spring is disassembled. According to the air spring dismounting device, the air spring can be automat