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Lightweight heavy-duty CNC horizontal lathe based on particle damping materials

机译：基于粒子阻尼材料的轻质重型CNC水平车床

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摘要

With the development of high-precision, high-speed, and green computer numerical controlled (CNC) machine tools, the advantages of lightweight versions of such tools are becoming increasingly obvious. Taking a ZN-XK2840 CNC lathe as an example, in this study a lightweight design method is proposed for CNC machine tools based on particle damping technology. The static performance of conventional CNC machine tools is analyzed using a finite element method, and the wall thickness is optimized. Then, the dynamic characteristics of conventional CNC machine tools, such as the modal characteristics and harmonic response, are analyzed. The particle damping technology can effectively reduce the vibration of the machine structure in the vibration transmission path. In this paper, the discrete element dynamic method is used for the finite element model of a lathe. Based on a traditional machine tool, the dynamic characteristics of the machine tool structure with a particle damper are analyzed. The lathe with a particle damper is manufactured according to the lightweight design. The acceleration and displacement amplitudes of lightweight machine tools are smaller than those of traditional machine tools. The third-order natural frequency of lightweight CNC machine bed is increased by about 28.49%, and the vibration amplitude of harmonic response is reduced by 3.38%. Compared with the similar machine tools used in industry, the light CNC lathe with particle damper reduces the weight by 50.8% on average.
机译：随着高精度，高速和绿色计算机数控（CNC）机床的发展，这种工具的轻质​​版本的优点变得越来越明显。以Zn-XK2840 CNC车床为例，在本研究中，提出了一种基于粒子阻尼技术的CNC机床的轻量级设计方法。使用有限元方法分析传统的CNC机床的静态性能，并且壁厚进行了优化。然后，分析了传统的CNC机床的动态特性，例如模态特性和谐波响应。粒子阻尼技术可以有效地降低振动传输路径中机器结构的振动。本文，离散元件动态方法用于车床的有限元模型。基于传统的机床，分析了具有粒子阻尼器的机床结构的动态特性。根据轻质设计制造具有粒子阻尼器的车床。轻质机床的加速度和位移幅度小于传统机床的加速度和排量幅度。轻量级数控机床的三阶固有频率提高了约28.49％，谐波响应的振动幅度降低了3.38％。与工业中使用的类似机床相比，粒子阻尼器的光线CNC车床平均将重量降低50.8％。

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