With the intelligent development of pipe bending machine and metal circular saw machine, the mould of NC pipe bending machine is one of the important parts that affect the quality of the pipe bending products. The strength of the die produced in China is poor, which affects the quality of the bending pipe. Therefore, the quality of the die should be improved and the processing technology should be provided. The mold should separate the non-ferrous metal pipe and the steel pipe according to the specification. At the same time, reasonable arrangement of the same batch, the same specification of pipe production, to ensure the quality of elbow, reduce mold replacement time, improve production efficiency.

        The quality of domestic components directly affects the normal operation of bending equipment. In order to ensure the normal operation of the equipment, the quality of numerical control and hydraulic components must be improved. At present, the domestic scientific research force has been increasing, and some key technologies have been solved and improved

        The die replacement of hydraulic pipe bender is complex, laborious and bulky. In order to avoid the waste of time in mold replacement, domestic shipyards increase the number of automatic pipe benders, so change the mold replacement form, the advantages of automatic pipe bender mold, the use of hanging clamping device in the structure, the installation process only needs 20mln, easy to replace.