测井仪器外壳内壁盲孔钻削装置设计与研究

Design and Research of Drilling Tool for Inner Wall Blind Hole in Logging Instrument Shell

内壁盲孔加工是石油测井仪器外壳制造过程中的一道关键工序,针对盲孔的位置结构和材料特性,设计出一种新型内壁盲孔钻削装置。重点介绍了刀具结构,并对该装置中关键零部件进行理论分析,通过试验验证了本方案的可行性。结果表明,该装置能够完成盲孔钻削,所加工盲孔的孔径范围为12.10~12.14 mm,深度范围为5.90~5.98 mm,表面粗糙度为Ra6.3。

According to the structure’s position and material’s properties, this paper introduces a new device of inner wall blind hole, which is used to settle the key process in logging instrument shell. It in-troduces the structure of tool, and analyzes the key components. Then the feasibility of this project is verified by experiment. The result shows that the design is able to be competent in drilling inner wall blind hole. The test reveals that the range of diameter is 12.10 - 12.14 mm, the depth is 5.90 - 5.98 mm, and the surface roughness is Ra6.3.