The utility model provides a traction
machine with a structure for firmly fixing a workpiece, which belongs to the field of hoisting workpiece fixing and comprises a traction
machine main body, and a chain is arranged on the traction
machine main body. And the fixing
assembly comprises a supporting frame fixedly connected to the outer side of one end of the chain, a
chassis is fixedly connected to the inner wall of the bottom of the supporting frame, positioning grooves are formed in the left side and the right side of the top of the
chassis correspondingly, and sliding grooves are formed in the front side and the rear side of the top of the
chassis correspondingly. Through the arranged fixing
assembly, a workpiece can be pre-positioned through the positioning groove, then the workpiece is limited through the abutting and buckling parts on the two sides, the workpiece is supported and fixed in an auxiliary mode through cooperation with the soft
cushion block, and finally it is guaranteed that the abutting and buckling parts on the two sides and the workpiece are stably connected and fixed through the elastic force provided by the torsional spring; in the actual operation process, positioning and fixing operation on the workpiece is simple, fixing is firm, and stability is high.