数控车床上x轴和y轴的正负值怎么判断 如果将一个直径50mm长80mm的毛坯沿Z轴进给量20mm,X轴进给量5mm.首先...

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数控铣床主轴系统及Z轴进给系统设计(附CAD图纸).doc88页
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2012 届华北科技学院
科 毕 业 设 计(论 文)
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2012 年月 日
[关键词]数控机床;立式数控铣床;主传动系统;主轴组件;轴承;主轴电动机
CNC milling machine and spindle system z-axis feed system design
Abstract: this text introduces the vertical CNC milling machine of some of the basic situation, this paper describes the main drive system of machine tool of principle and type, analyzes the mechanism of all kinds of transmission scheme. Vertical CNC milling machine main transmission system including the spindle motor, main shaft transmission system and spindle component of three parts. This paper introduces the vertical CNC milling machine main transmission system design process, the vertical axis CNC milling machine speed is to rely on the pulleys, the transmission way in numerical control lathe, it can avoid caused gear transmission of the vibration and noise, meshing transmission in the only need not lubrication transmission mode. In the meshing transmission, its structure is the most simple, make the most easy, the most economical, the most powerful of the elastic cushion, light weight, two axis can be arbitrary decorate, low noise. It brought from specialized manufacturer production, pulleys to design manufacturing, it in the distance, much shaft driving when more economic. This paper introduces the main transmission system vertical CNC milling machine all kinds of transmission scheme comparison, the advantages and disadvantages of the main transmission scheme selection and sure, main transmission variable speed drive system design calculation, spindle component design, the choice of bearing the lub
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数控车床编程与操作
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第3章 数控车床的编程
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