变径变距螺杆的制造技术及其数控系统的开发／廖月明／／大连理工大学变径变距螺杆是塑料挤出过程中非常重要的零件，传统的机械加工手段很难实现对它的加工。我们依据其形成机理，在ＣＡ６１４０车床上开发了一套数控系统。这种螺杆除了径向均匀，在轴向还会加速变化，因... Variable pitch variable pitch screw manufacturing technology and CNC system development / Liao Yueming // Dalian University of Technology Variable pitch variable pitch screw is a very important part of the plastic extrusion process, the traditional mechanical processing means it is difficult to achieve its processing. Based on its formation mechanism, we developed a CNC system on the CA6140 lathe. In addition to the radial uniform screw, in the axial acceleration will change, due to ...