Research On Milling Process Method Of B Shaft Drive Unit Efficiently

The issue comes from national science and technology major projects research on spherical head turning and milling machining center important parts processing project component B axis drive part efficiency milling process method. To satisfy spherical head multi hole processing demand, head milling machining center using the ram drive shaft B function design, to achieve axial Angle B ±50° technical indicators. B axis function introduced to extend the function of machine tool technology at the same time, can make the machine tool stiffness values fell, the shaft rigidity of B will directly affect the machining performance of machine tool. B drive shaft parts, therefore, finishing and assembly technology become spherical head milling machining center in design and manufacture of key problems to be solved.This paper to ensure the assembly accuracy of B drive shaft parts for premise. realize efficient milling of B drive shaft parts, for the purpose of research analysis B axis components function, structure and assembly process, to extract the important processing surface; Then according to its functional requirements, in order to meet its performance in the whole machine, puts forward a new processing and quality requirements.To solve the milling process, the cutting vibration of combined with the influence of machining accuracy and surface quality, cutting vibration by experiments and analysis of research in the process of cutting tool vibration and cutting tool structure and cutting parameters, building the relationship between tool cutting vibration and surface machining precision and machining quality, provides the basis for process optimization.For tool wear affect large parts processing quality consistency, tool wear experiments, tool wear experiments compared the different structure of tool under different cutting parameters and tool wear, with the contact surface machining precision and machining quality, analyzing the influencing factors of wear of cutting tools, building the connection of the tool wear and surface machining precision and machining quality, providing the basis for cutting tool selection.In order to solve the existing machining precision and surface quality evaluation index "averageness" problem, establishing joint surface milling machining precision and machining quality evaluation index. Vibrate with cutting tools and tool wear based on the experimental research results, On site B drive shaft parts actual milling cutting tool selection and process optimization, to achieve the purpose of high efficiency milling B drive shaft parts.