The Design Of The Radiation Environment Change Automatic Sample Platform

With the rapid development of global economy, the radiation environment of science experiment and the experiment device is increased, the resear chers can’t work in the radiation environment for a long time.In contaminated environment at the same time, the radiation source will release a great deal of X-ray and neutron, easily lead to mechanical and electrical equipment sensors and electronic devices, signal transmission system failure moment, will accelerate insulation aging, lubricants, adhesives, sealing parts.So the automation testing equipment for specific environment and platform is very important.Radiation environment changing platform automatic sample can avoid the harm of human body radiation environment, improve the ability of radiation environment platform testing samples. In this paper, the main content is:First of all, the radiation environment automatic sample to replace platform system is analyzed, On the basis of domestic and international research on the re-design of mechanical systems platform, increasing the sample vertical positioning device, the precision and the ability to change the sample checking, the results show that under the required space, the platform the overall height can be adjusted between 30 to 35 cm;samples can be lifting range 11cm; During a test sample can be rotated 360 °, etc.Secondly, the use of three-dimensional modeling software Autodesk Inventor 2014 Professional to design platform of mechanical systems.Three-dimensional model of the design of mechanical system, and are assembled, the production of engineering drawing and express views and convenient guide the manufacturing and assembly of mechanical system.At the same time in the process of design and manufacturing problems are analyzed, summarized the problems that should be paid attention to in the design of mechanical parts.Finally, MPC2810 motion control card as the core to build an open multi-axis control system, combined with the actual article on the various components of the control system are introduced and set up, the use of hardware platforms and PC software for mechanical system and the control system was debugged experimental results show that the radiation environment at the design of automatic sample changing platforms to meet user requirements, to achieve a variety of movement forms, but also to meet performance targets. At last, put forward the problems existing in the design to further impr ove the performance of the system.