链式拉伸机是拉伸管材的通用设备,用于管坯的冷拔工序,整个拉伸过程是借助于被加工金属前端所施的拉力来实现的。链式拉伸机布置见图1。 芯杆12安装在芯杆小车16上,当料架9上已打好夹头的铝管坯滚进中间床身13后,由芯杆顶进机构14经钢丝绳驱动芯杆小车16将管子套进前端有固定内模11的芯杆上,并 Chain stretcher is the universal equipment for stretching the pipe for the cold drawing process of the tube. The whole stretching process is achieved by means of the pulling force exerted by the front end of the metal to be processed. Chain stretching machine layout shown in Figure 1. Mandrel 12 is mounted on the mandrel car 16, when the chucks 9 have been chucked aluminum tube rolled into the middle of the bed 13, the mandrel into the mechanism 14 through the wire rod core rod drive car 16 will sleeve Into the front end of the mandrel with a fixed inner mold 11, and