论文部分内容阅读
我厂生产的螺杆式压缩机,需在其主要零件转子的心部加工φ215、φ88、φ60mm三个不同直径和深度的内孔。转子是用45号优质碳素钢自由锻造成的实心锻件,内孔必须采用切削加工来完成。由于批量小,故未采用成本高的深孔套料工艺,而是先用内排屑深孔钻钻出φ88×1300mm和φ60×270mm的深孔,然后再车φ215mm孔至图纸要求。为了顺利加工这个孔,我们设计制造了一根动支承深孔扩孔刀杆,经多次试验,效果很好。它能在40分钟内,将深700mm的内孔,从φ88mm一次扩孔到φ170～φ180mm,然后再车至φ215mm,生产效率成倍提高。现将它的结构和应用介绍如下。
I plant the screw compressor, the rotor in its main parts of the heart of processing φ215, φ88, φ60mm three different diameter and depth of the inner hole. The rotor is made of 45 # free carbon forged solid forgings, the hole must be machined to complete. Due to the small volume, it does not use the high-cost deep-hole nesting process, but first with the chip-cut deep hole drilling φ88 × 1300mm and φ60 × 270mm deep hole, and then car φ215mm hole to the drawing requirements. In order to smoothly process the hole, we designed and manufactured a moving support deep hole broaching arbor, after many tests, the effect is very good. It can be within 40 minutes, the deep 700mm bore, a reaming from φ88mm to φ170 ~ φ180mm, and then car to φ215mm, double the production efficiency. Now its structure and application described below.