Research On Machining Processing Of Complicated Tooth Profile Surface In Universal5-axis NC Machine Tools

5-axis linkage Numerical Control Machining have irreplaceable advantages when manufacturing sculptured surface.The paper adopted the universal5-axis linkage machine tool structure replacing the traditional special processing equipment incorporating NC Machining with gear surface machining,and provided a method for complicated tooth profile surface semifinishing and finishing.And relevant study were made about eliminating the tooth profile deviation by taking the microgeometeric distortion of helical bevel gear after the heat treatment as an example.Firstly,the cutter location calculation of flank blade grinding finishing was discussed,and the calculation method of meshing area was analysed for standard spur gears drive.The analytical solution of cutter location point was obtained by the constraint condition of the minimum safety distance between the cutter bottom edge and adjacent tooth profile,and cutter contact point along the tooth profile changed dynamically to improve the cutter life when calculating the cutter location.The paper adopted the method of UG/NX and compiled the tool path udop function in Visual Studio2005integrated environment in C programming language,and got the compiled dll file of analytical solution.The dynamical contact point tool path was acquired to implement axial proportion variation after having embedded the dll file into the UG/CAM setting,and it was more flexible by contrast with the tool path of original UG/CAM module.The selection of5-axis linkage machine tool was discussed for the gear’s processing based on the cutter location programming.Dual-head and dual-table also other structure types were discussed,and it was analysed that of machined parts’scope of application and relative merits.The dual-table type was proper in the paper.The testing tool path for the tooth profile surface was generated by UG/Open API programming.The UG/Post postprocessor configuration was achieved for the selected machine tool type and NC code was generated automatically for the practical NC Machining.The geometry simulation verification was achieved in Vericut machining simulation software finally.The simulation result indicates,the method of tool path generation proposed in the paper and the configurated machine tool type could achieve the NC machining of complicated tooth profile surface.