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飞机发动机的某组合件上的螺母,工人在装配过程中发现自制螺母与外购的螺母有差异,自制零件螺纹装配时对相配件的伸长量不合格,明显比外购零件低,性能不稳定,因此主要研究对象是内螺纹,该零件螺纹的加工方法采用的是在立钻上丝锥攻制内螺纹。故从自制螺母零件的设计要求、执行标准入手,对加工螺纹的方法选择、工装选定、检测等与螺纹加工和测量过程相关的因素分析研究,通过大量数据测量、分析找到影响螺母加工质量的原因,并调整底孔尺寸后加工的零件,经过测量和验证,制造水平超过外购零件。
The nut on a certain assembly of the aircraft engine was found by workers in the assembly process. There were differences between self-made nuts and purchased nuts in the assembly process. When the self-made parts were threaded, the elongation of the matched parts was unqualified and obviously lower than the purchased parts, Stable, so the main research object is the internal thread, the part of the thread processing method is used in tapping tapping tapping internal thread. Therefore, from the design requirements of the self-made nut parts, the implementation of standards to start the process of thread selection, tooling selection, testing and thread processing and measurement process-related factors analysis and research, through a large number of data measurement and analysis to find the impact of nut processing quality Reason, and adjust the size of the bottom hole after the processing of parts, after measurement and verification, manufacturing level over purchased parts.