The Manufacturing Technology Resarch of the Airborne Elevtro-optical Rotatable Targeting System
|School||Xi'an University of Technology|
|Keywords||magnesium alloy thin-walled parts CNC machining quality|
To meet the requirement of all-time precision strike in modern battlefield,Targeting system integrated with infrared, laser, electronic observation, glimmer technology becomes the indispensable part of the airborne weaponry. It has strict requirement on parallel and stability of optical axis, air tightness and overall weight. There were some difficulties on quality and precision control when machining the components of targeting system. This article analyzes the problems respectively, and then gives the effective methods to solve the problems, and finally complete the processes of the main components of the target system in high-quality.In order to meet the design requirements, we analyze the structural features of the airborne electro-optical targeting system, especially the main component, and then find out the processing technology issues which should be strict controlled, and make the effective processing methods. When we examine the structural features of the system, the main reason leading to the deformation of the main part of the targeting system has been found, and then we give the solutions through the control of the quality of casting blank, processing system rigidity and cutting force. The processing of the component of the system integrates such techniques: control of the casting blank weight, application of the NX software, virtual machining system, multi-axis machining, creating the special post for certain CNC machine. To reach the high efficiency and precision of the part surface, the CAM software tool path optimization, surface fine calculation technique has been applied. In order to enhance the magnesium alloy cutting efficiency in the low speed machine, we drew the curves reflecting machine tool vibration, thus avoided the high vibration area and then gained high speed with little vibration.