立式加工中心主轴热漂移测试与分析
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摘要
立式加工中心主轴系统的热特性是影响其加工精度的主要因素之一,对立式加工中心主轴系统进行热特性相关分析尤为重要。对VMC850E立式加工中心进行研究,利用API主轴热漂移误差分析仪,采用先进电容式或电感式传感器以及接触式测温传感器,分析主轴温升情况与热漂移之间的关系。从实验数据的变化趋势可以得出:主轴在温升阶段径向和轴向热漂移均增大,其中Y轴方向热漂移最大,各个方向的热漂移均有先下降后上升的趋势,进而在加工过程中对主轴的润滑和冷却便提出了更高的要求。
The thermal characteristics of the spindle system of vertical machining center become one of the main factors affecting its machining accuracy. It is particularly important to analyze the thermal characteristics of the spindle system of the vertical machining centers. VMC850 E vertical machining center is researched. The API spindle thermal drift error analyzer, advanced capacitive or inductance sensors and contact temperature sensors are used to analyze the relationship between spindle temperature rise and thermal drift. The experimental results show that the radial and axial thermal drift of the spindle increases at the temperature rising stage, and the Y-axis thermal drift is the largest. The thermal drift in all directions decreases at first and then increases. In the process of processing, the requirements of the lubrication and cooling of the spindle are higher.
The thermal characteristics of the spindle system of vertical machining center become one of the main factors affecting its machining accuracy. It is particularly important to analyze the thermal characteristics of the spindle system of the vertical machining centers. VMC850 E vertical machining center is researched. The API spindle thermal drift error analyzer, advanced capacitive or inductance sensors and contact temperature sensors are used to analyze the relationship between spindle temperature rise and thermal drift. The experimental results show that the radial and axial thermal drift of the spindle increases at the temperature rising stage, and the Y-axis thermal drift is the largest. The thermal drift in all directions decreases at first and then increases. In the process of processing, the requirements of the lubrication and cooling of the spindle are higher.
引文
[1]石彦华,周华.CXK630五轴联动车铣复合加工机床高速主轴热态特性分析[J].机床与液压,2009,37(6):35-37.
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[6]刘明科.VMC0656e立式加工中心电主轴油汽润滑及陶瓷球轴承的性能实验研究[D].沈阳:东北大学,2010.
[7]王喜运,董欣胜,孙树海,等.几种数控车床热变形试验分析[J].组合机床与自动化加工技术,2014,9:42-45.
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[9]廖威春.数控机床的热变形分析及其防治措施[J].中国高新技术企业,2009,10:59.
[10]史安娜,曹富荣,刘斯妤,等.卧式数控机床主轴系统热特性测试及研究[J].组合机床与自动化加工技术,2018,6:128-131.
[11]刘昌华.数控成形磨床关键部件热态分析[D].杭州:浙江大学,2016.
[2]罗勋,殷国富,方辉,等.HTM6380卧式加工中心立柱-主轴系统热态特性研究[J].组合机床与自动化加工技术,2014,3:63-65.
[3]袁晓平,李振宇.Pro/Engineer机床数字化仿真案例[J].安徽科技,2012,5:44-45.
[4]李铮.立式加工中心包装箱初探[J].民营科技,2017,8:275.
[5]马潇潇,李琳,薛志安.ADXI4 CNC在VMC650E中的应用[J].机床与液压,2016,44(22):152-154.
[6]刘明科.VMC0656e立式加工中心电主轴油汽润滑及陶瓷球轴承的性能实验研究[D].沈阳:东北大学,2010.
[7]王喜运,董欣胜,孙树海,等.几种数控车床热变形试验分析[J].组合机床与自动化加工技术,2014,9:42-45.
[8]张鑫星.龙门加工中心的热误差分析及神经网络建模[D].桂林:广西大学,2012.
[9]廖威春.数控机床的热变形分析及其防治措施[J].中国高新技术企业,2009,10:59.
[10]史安娜,曹富荣,刘斯妤,等.卧式数控机床主轴系统热特性测试及研究[J].组合机床与自动化加工技术,2018,6:128-131.
[11]刘昌华.数控成形磨床关键部件热态分析[D].杭州:浙江大学,2016.