Simulation Of Motion Trail And Process Research Of Deep Hole Honing For Slender Shaft

The slender shaft parts are key parts in the fields of aerospace and weaponry.With the continuous improvement of equipment performance,higher requirements are placed on the quality of the inner hole of the shaft.Honing is a machining method that can significantly improve the geometric accuracy and surface quality of inner holes,and is often used in the final machining of high-precision holes.Compared with ordinary grinding methods,the movement mode of honing is more unique and it has more process parameters,and there are problems that the processing quality is not easy to guarantee and the research method of the surface topography after honing is not perfect.Therefore,it is of great significance to start from honing kinematics to deeply explore the effect of various process parameters on machining quality,to compare the processing effects of different honing stones to optimize the honing st one,and to carry out scientific and accurate analysis and evaluation of the surface topography of the workpiece after honing.Based on the in-depth analysis of the development status and principles of honing processing technology,this paper has completed the following specific tasks:1)According to the motion form of the honing tool,the honing motion equation is constructed,and the honing motion trajectory is simulated,the motion trajectories of single and multiple abrasive particles on the honing sto ne were constructed respectively.The formation conditions and influencing factors of honing crisscross pattern are analyzed and the influence of different honing speeds,honing machine reciprocating acceleration and whetstone overtravel on the honing trajectory and machining accuracy was explored.2)By carrying out the basic honing test,the honing processing effects of two ultra-hard abrasive whetstones,diamond and CBN,were compared and analyzed in terms of material removal rate and surface roughness of the workpiece;The power of the two whetstones during honing was measured,and the tangential honing force was obtained from the power,and then the stability of the honing process of the two whetstones was compared with the fluctuation of the honing force;Through the surface topography detection and size measurement of the tested whetstone,the microscopic wear mechanism of the two whetstones was explored,and the macroscopic wear amount of the two whetstones was calculated.3)Based on fractal theory and wavelet transform theory,wavelet decomposition was performed on the grayscale images of workpiece surface three-dimensional topography under different honing parameters,and the decomposed sub-images were obtained,and then the fractal dimension of each grayscale image and its sub-images was solved.The influence of the honing speed on the fractal features was explored,and the morphological characteristics of the honed surface were analyzed.