Locking device for ring processing

The utility model relates to the field of ring processing, in particular to a locking device for ring processing, which comprises a base and a support rod, the support rod is fixedly mounted on the base, and a rotating groove is formed in the support rod; the locking mechanism is fixedly installed at the end, away from the base, of the supporting rod. The rotating drum is rotationally arranged outside a rotating groove formed in the supporting rod in a sleeving mode, the rotating drum can stably rotate along the rotating groove, a plurality of clamping holes are formed in the lower end of the rotating drum, and the clamping holes are distributed in the outer side of the supporting rod; the rotation limiting mechanism sleeves the supporting rod and is fixedly connected with the base; and the position adjusting mechanism is fixedly connected with the rotary drum, a mounting plate is fixedly mounted on the position adjusting mechanism, and machining equipment can be fixed to the mounting plate. The locking devic