摘要
发射架壳体吊挂孔的同轴度是发射装置一个重要的形位公差,影响发射装置的悬挂精度,在蓝图中吊挂孔同轴度为关键尺寸且公差要求严格。根据发射架壳体的工艺路线,介绍了由一菱形销、两定位键和平面支承组成的定位工装,并进行了定位分析和工艺计算。采用该定位工装保证了加工精度和形位公差,装夹方便,定位可靠。目前已加工出合格的壳体吊挂孔同轴度尺寸,适用于大批量生产。
The concentricity of suspension hole is one of the key dimension for launcher, which affects the suspending accuracy, and this result in the tolerance is be- ing made necessarily tight.According to the machining process,a fixture which is comprised of the flatted location pin,the location key and the base plate is presented.The fix- ture eliminates the six freedoms when work is located.The process calculation of the jig is also carried out.Accuracy is ensured by machining suitable location features,and the clamp can be operated quickly but with safety.The quali- fied concentricity of suspension hole is processed to meet the demand of mass patch production.
出处
《航空制造技术》
2010年第8期86-88,共3页
Aeronautical Manufacturing Technology
关键词
发射架壳体
同轴度
定位键
菱形销
Launcher Concentricity Location key Flatted location pin
