125克塑料注射成型机预塑螺杆的螺旋角为17°48′,由于这种螺杆的底径分三段变化,又是典型的细长轴,所以在普通的车床上加工比较困难,现在一般工厂多采用端铣法用立铣刀分刀切出,效果不太理想。我厂承接了上海采矿机械厂委托加工的一批125克注射机螺杆的任务,采用以下措施,加工效果较好。工件如图1所示。我们改装了中拖板丝杆,设计了新型的靠模装置及跟 125 g plastic injection molding machine preform screw helix angle of 17 ° 48 ’, due to the bottom diameter of this screw is divided into three sections, but also a typical slender shaft, so in the ordinary lathe machining is more difficult, and now general Factory use end milling method with end mill knife cut, the effect is not ideal. I plant to undertake the Shanghai Mining Machinery Factory commissioned a group of 125 g injection screw machine tasks, the use of the following measures, the processing effect is better. The workpiece shown in Figure 1. We modified the mid-carriage screw, designed a new type of mold device and with