The utility model discloses an annular splicing
cartridge receiver welding supporting and locking device which comprises a first equal-height block, the first equal-height block is installed on a
workbench, two supporting plates are connected to the upper portions of the two sides of the first equal-height block, a second equal-height block is connected to the upper portions of the supporting plates, the second equal-height block is provided with a clamping groove, the clamping groove is matched with a support, and the first equal-height block is installed on the
workbench. The rear portion of the support is connected with a baffle, a locking screw is arranged on the baffle, the locking screw is connected with a locking block, the lower surface of the locking block is arranged to be an inclined face, the lower surface of the locking block is in sliding fit with the upper surface of a locking
cushion block, check blocks are arranged at the two ends of the locking
cushion block, and a second equal-height block is connected with a workpiece. The locking screw is rotated, the locking block moves, the locking
cushion block is fixed, and therefore the workpiece is locked, operation is easy and convenient, time is saved, efficiency is improved, universality is high, and the annular workpiece is prevented from loosening in the
welding machining process.