关键词: 气门锁夹；到位检测；故障图形

Abstract: According to the working principle of the engine, the body of the valve lock clamp is small in terms of design. The size of the valve lock clamp of the ordinary commercial engine is about 5 mm×5 mm×2 mm circular arc alloy small pieces. In addition to the difficulty of assembly, how to detect whether it has been installed is also a relatively important link. This paper analyzed the working principle and process of engine valve lock clamp detection equipment often used in the field production process, took the actual situation as an example, and used the three dimensional mathematical model analysis. The limit value setting method of the device and graphical curves under different failure modes were studied and analyzed, and the field engineering and technical personnel can compare the graphical curves, which can quickly find the equipment failure points or product failure points, so as to quickly resume production and improve the capability of online quality detection.

Key words: Valve lock clamp; Detection in place; Fault graph