Fixing assembly for heat treatment processing of metal piece

The utility model provides a fixing assembly for heat treatment processing of a metal piece, and relates to the technical field of heat treatment, the fixing assembly comprises a box body, two sliding grooves are formed in the box body, the surfaces of the two sliding grooves are both connected with connecting columns in a sliding mode, the interiors of the connecting columns are both connected with telescopic rods in a sliding mode, and the telescopic rods are connected with the sliding grooves in a sliding mode. A metal part can be fixed through cooperative use of a sliding groove, a clamping block, a telescopic rod and a connecting column, the metal part can be driven to move in the equipment in cooperation with a conveying belt, and therefore the practicability of the assembly is improved, and the conveying belt can be driven to move through cooperative use of a box body, the conveying belt, a rotating rod and a motor; and the treated metal part can be fixedly fed into the next step, so that the superiori