我厂承接一批气缸套加工任务,其内孔基本尺寸为φ200mm,由于气缸套大,装夹不方便,所以在镗孔工序中,我们采用一次装夹镗孔三次的工艺,并且只能在T720金刚镗床上采用单刀镗孔,其镗刀结构如图1所示。由于一次装夹需镗孔三次,所以调刀困难,辅助时间长,给操作者带来不便,且生产效率低。为此,我们设计了差动式微调镗刀,弥补了上述不足,其结构如图2。 I plant to undertake a number of cylinder liner processing tasks, the basic dimensions of the hole φ200mm, large cylinder liner, clamping inconvenient, so boring process, we use a clamping boring three times, and only in the T720 King Kong boring machine using single-pole boring, boring cutter structure shown in Figure 1. Since a fixture needs to be boring three times, it is difficult to adjust the knife and the auxiliary time is long, which brings inconvenience to the operator and low production efficiency. To this end, we designed a differential fine-tuning boring tool to make up for the above deficiencies, the structure shown in Figure 2.