دانلود رایگان ترجمه مقاله آنالیز ویژگی دینامیکی دوک برای سیستم بازسازی ماشین گرا (نشریه تیلور و فرانسیس ۲۰۱۴)

تجزیه و تحلیل مشخصه دینامیک دوک برای سیستم بازسازی ماشین محور

Dynamic Characteristic Analysis of the Spindle for the Oriented Machine Remanufacturing System

It was researched by a CNC spindle system after remanufacturing as the object, used the finite element analysis software ANSYS spindle system .Firstly, the urgency of the remanufacturing spindle and processing is analyzed; secondly it was established by the finite element model and being dynamic performance analysed, it was obtained by first five natural frequencies, vibration type and the largest integrated deformation on the specific conditions and different structural parameters of the spindle system; they are analyzed by the supporting stiffness, the supporting span and other structural parameters of the spindle system low natural vibration characteristics and its antivibration performance. For the spindle system dynamic design and similar components and residual stress VSR process provides a useful analysis of data and feasible method of analysis.

۱ Introduction

The machine tool spindle is the important components for the precision machining of the machine. Because the spindle system dynamic performance plays a key role in affecting the machining accuracy, it is particularly important to research the remanufactured spindle components and analyze the function of the repaired spindle.

With the rapid development of China’s industries, the demand for CNC machine tools is increasing, the country has a large technical equipment control technology, design technology and assembly technology as a key development direction [1]. The nature of remanufacturing is the machine repair, is a high-tech restore, academician Binshi xu led research team is the pioneer remanufacturing technology, they has been successfully applied the surface of the repair technique to the machine remanufacturing recovery of mechanical precision [2]. The CNC machine tools is a key production line equipment, machines parts the specification, high precision, expensive features, does not allow waste, so large machine remanufacturing of machinery is high precision [3, 4]. Deformation caused by machine vibration source is complex, the processing errors are not easy to identify, the cause of the vibration generated by the machine movement has a significant impact on machining accuracy, especially straightness errors in the vertical plane, will directly affect the ultimate precision machine tools [5, 6, 7].The effect of vibration on the machine is one serious problem of large machine tools remanufacturing [8, 9].

This paper analyzes the spindle through the static and dynamic performance [10, 11], before the re-manufacturing to make reasonable arrangements for the parameters of the spindle, increase the accuracy level is too high to avoid causing parts remanufacturing costs [13].