图1所示零件,其40°两斜面的尺寸精度和表面粗糙度都有较高要求。为了加工出合格的零件,在铣好两斜面后,通常是用推刀进行精加工。一般推刀是做成固定式的,这样刀具一旦磨损,加工出来的零件就达不到技术要求。为此,我设计了一把可调式的组合推刀,如图2所示。经使用效果良好,介绍如下: Parts shown in Figure 1, the 40 ° two bevel dimensional accuracy and surface roughness are higher requirements. In order to process qualified parts, after milling two inclined surfaces, it is usually done with a push knife. Push the knife is generally made of fixed, so that once the tool wear and tear, the parts processed out of reach the technical requirements. To this end, I designed an adjustable combination push knife, as shown in Figure 2. After the use of good results, introduced as follows: