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中心区模型试验装置是进行强流回旋加速器关键技术研究的实验平台.本文介绍了为该试验装置所设计的偏转板和中心区,包括物理设计的考虑、数控加工技术及安装精度的控制技术.由于电磁场的相互作用粒子在偏转板中的的轨迹为螺旋线,其电极形状复杂,加工采用四轴联动以上的数控机床完成.为满足束流动力学的需要,中心区的电极结构比较复杂而且不规则,表面光洁度要求高,另外尺寸和安装位置精度要求严格.中心区曲面电极结构由三轴联动加工中心加工完成,中心区地电极与高频D板头部的电极间隙非常重要,在安装过程中,制作了专用的“电极间隙通止规”控制电极间隙精度在±0.05mm.
The central model test device is the experimental platform for the research of the key technologies of the strong current cyclotron.This paper introduces the deflection plate and the central region designed for the test device, including the physical design considerations, numerical control machining technology and installation accuracy control technology. Due to the electromagnetic field interaction particles in the deflection plate trajectory for the helix, the electrode shape is complex, the use of machining more than four axis CNC machine to complete.In order to meet the needs of beam dynamics, the central electrode structure is more complex and not Rules, high surface finish requirements, and the other dimensions and mounting position accuracy requirements strict center electrode surface electrode structure by the three-axis machining center machining center electrode and the high frequency D plate electrode gap is very important in the installation process In the production of a dedicated “electrode gap through regulation ” control electrode gap accuracy of ± 0.05mm.