Technology Research On Five Axis Machining And Simulation Of Precision Forging Blade Edge Based On UG

Blades are the core components of rotary type moving equipment.In order to improve the machining precision of the blade parts,the blade blank is changed from the traditional square material into the precision forging blank.In order to solve the problem of different machining allowance in the blade blank of precision forging,an adaptive machining system of blade is developed.The main functions of adaptive machining system can be divided into five parts: blade blank measurement,data model reconstruction,machining process analysis,automatic generation,processing code and simulation processing.The machining efficiency and machining accuracy of the blade can be improved by the adaptive machining system of the blade.The research contents of this paper are two parts: automatic generation,processing code and simulation processing in adaptive machining system.This thesis takes Windows as the software system platform and Visual Studio 2010 as the software development environment,and studies the two development methods of UG processing module.It is necessary to change the complicated interactive NC programming to the automatic NC programming of the background code.Only a few necessary processing parameters are needed in the process parameter interface.A specific NC machining code can be rapidly generated automatically for each blade blank of each shape.And on the VERICUT simulation platform built five axis dual pendulum CNC machine tools.reading NC code to implement the virtual simulation processing.In the tool path planning of blade edge machining.According to the characteristics of the blade in the inlet/outlet of the precision forging blade,The processing technology of blade inlet/outlet arc is studied and worked out.Five axis NC reciprocating milling method is used to process the blade.And the tool path planning is completed.Research and put forward to use UG/OPEN API function to carry on the two development method of UG processing module.The tool motion information after the tool path planning is automatically output in the form of a cutter position file.In the post processing of five axis NC machining.The kinematics of NC machine tool is studied,and the general kinematics modeling method of multi axis machine tool is put forward.It can solve the kinematics equation of machine tool of any structure form and apply it to post process.Taking UG/post Builder as the platform and taking TCL as the development language,the post-processing program of five axis double pendulum machine tool has been developed.The call method of post-processing program is studied,which can automatically process the tool position file and generate the corresponding NC code.The method of automatic generation of tool information and processing time in machining code is studied.In simulation processing.Using VERICUT as the simulation platform,a virtual five axis machine tool and a matching NC system are built.The tool setting process associated with machine tool coordinate system and work-piece coordinate system is studied,and the tool length compensation and radius compensation in machining process are realized.The optimization method of cutting rate is studied,and the cutting rate is optimized in NC machining code.The simulation shows that the software developed in this paper can improve the efficiency of NC programming.The virtual simulation machining platform can verify the correctness of NC machining code and reduce the reject rate of the blade processing.