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    Please use this identifier to cite or link to this item: http://ccur.lib.ccu.edu.tw/handle/A095B0000Q/168

    Title: C型工具機溫升熱變形特性研究;A study on the thermal deformation and temperature rise characteristics of C-type machine tool center
    Authors: 朱冠宇;JU, GUAN-YU
    Contributors: 機械工程系研究所
    Keywords: 熱誤差;精密科技;工具機;個別元件;環溫變化;thermal error;precision technology;machine tool center;ambient change
    Date: 2018
    Issue Date: 2019-05-23 12:52:48 (UTC+8)
    Publisher: 機械工程系研究所
    Abstract: 熱誤差一直是工具機的一大致命傷,隨著精密科技的發展工具機趨向高速高精度的加工需求,使得此問題更加之明顯,本研究有別於以往只單獨探討整機之效應分析,建立出一套量測整機及其元件特性探討的系統。首先本研究量測工具機及其各別元件(主軸滑台、立柱及基座)溫升及熱變形,並且透過本實驗室建立之恆溫室來改變環境溫度,以瞭解在不同操作條件(改變轉速、改變發熱量、改變環溫)下對工具機溫升與熱變形之影響,量測系統中特別獨立出工具機的主軸滑台、立柱及基座,模擬一個熱傳實驗,在溫度量測系統中,量測整機主軸內部溫升、主軸滑台表面溫升、立柱及基座表面溫升。在熱變形量測系統中,使用渦電流式位移計量測了整機主軸XYZ三軸向熱變形以及利用電容式位移計量測各元件之熱變形量的變化。本研究亦在整機中發現了因為受熱的效應導致主軸呈現點頭之效應,隨著環溫的改變對於整機及其元件的特性有了很大之影響。
    Thermal error has always been a fatal injury to the machine tool. As precision technology advances, the machining requirements of machine tool tends to high-speed and high-accuracy, that makes the problem more evident. This study is different from that only alone explored the effect analysis of the whole machine in past, established a set of gauging system for the whole machine and exploring the characteristics of its components. First of all, this study measured the temperature rise and thermal deformation of whole machine and its components(headstock, column and base), and through to establish the thermostatic chamber to change the ambient temperature. In order to understand the different operating conditions (variable speed, variable power, and variable ambient temperature) impact on temperature rise and thermal deformation of machine tool. In the measurement systems particularly independent out the headstock, column and base of machine tool to simulate a heat transfer experiment. In the temperature measurement system, measured the temperature rise of spindle on machine, the temperature rise of headstock surface, and the temperature rise of column and base surface. In the thermal deformation system, used eddy current displacement to measure the thermal deformation of spindle's XYZ triaxial and used capacitive displacement to measure the thermal deformation of each components. This study also found in the whole machine that the spindle has a nodding effect due to the effect of heat, as the ambient temperature change it has a great influence on the characteristics of the whole machine and its components.
    Appears in Collections:[機械工程學系] 學位論文

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