Research On Tool System Of Hybrid Grinding And Polishing Machine Tool For Blade Finishing

Blade is the key to major parts of the turbine, propeller, aircraft engines andpower equipment energy.Its surface structure is complex, difficult process, highprecision processing environment. The resulting blade finishing processingtechnology and equipment to become one of the difficult point of space research inChina. This paper, in combination with the development of science and technologykey projects of the Jilin Province department “The Complex Surface PrecisionManufacturing New Technology and New Equipment”, researched on the tool systemof hybrid grinding and polishing machine tool for blade finishing.Hybrid grinding and polishing machine tool based on the analysis of bladestructure principle, geometric analysis of the pulley structure of its variable-wheeledtool system. Analysis of the process of change wheel tensioner swing angle indifferent locations with long and round wrap angle changes. Application of MATLABto calculate the ideal design belt length, Come to change wheel round wrap angle withthe contact wheel cylinder expansion volume change curve. Verify the rationality ofthe length of abrasive belt design and the design of driving wheel angle.Research on the variable wheeled tool system control section. Including the twoparts of electric and pneumatic. On electric, finished the servo motor and steppermotor connection and control, defined the I variable of PMAC; On pneumatic,completed the gas path flow, as well as with PMAC configuration of M variablesrelated to gas path control. One more, developed the software of control system.In order to achieve constant force and strong polishing, to make polishing forcecan get feedback and adjustment, developed a closed-loop type constant force ofpolishing tool system. Determined its overall structure, analyzed the force of radial direction. Completed its detailed design and its virtual interference test based onCATIA. The tool system was carried on the static properties of the finite elementanalysis, determined the stability and the rationality of the tool system ontheory.Completed physical build structures work.Through experiment, verified the performance of the machine tool. By singlefactor experiment, researched the affect on different Angle and the blade surfacequality. The experimental results show that, the contact wheel diameter size isinversely proportional to the quality of the surface roughness.