数控车床主传动系统毕业论文.doc

XXXX大学学士学位论文 PAGE PAGE III 摘 要 本文论述了数控车床主传动系统和伺服进给传动系统设计。主传动系统的设计包括运动设计、动力计算、主轴箱结构设计。伺服进给系统的设计包括传动设计、X、Z轴伺服进给系统结构设计。 本设计参照中型数控车床的一些主要的技术参数，详细论述了主传动系统中主轴最高和最低转速的设计，变速范围的确定，电动机功率的估算，电动机的选择，主轴箱转速图和功率图的设计，传动轴轴径和齿轮模数的估算，传动轴轴径、齿轮模数和轴承的验算；伺服进给系统中传动比的确定，伺服电动机的选择，滚珠丝杠螺母副的选择及伺服系统的参数设计和计算。 关键词：数控车床；主传动系统；结构设计 Abstract The subject of my research paper is “the Design of Main Transmission and Servo Feed Transmission for CNC Lathe”.The design for main transmission include the design of movement, the caculation of drive, and the design of headstock .Besides, the design for servo feed transmission include the design of transmission and the design of X-axis, Y-axis servo feed system . In my design, I take some main technical parameters of medium CNC lathe for reference. Furthermore, I design the maximum and minimum speed for spindle in the main transmission ,the determination of the transmission range, the estimate of motor power, the select of motor, the chart of Speed and power for headstock, the estimate of the size for shaft the estimate for gear modulus, the checking for the shaft , the gear modulus, the determination of the transmission ratio in servo feed transmission, the select of servo motor , the select of ball screw pair, the design of the parameter for servo feed transmission as well as its caculation. Key words: CNC lathe ;Main Drive System ;Structural Design. 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc264557487 1. 绪 论 PAGEREF _Toc264557487 \h 1 HYPERLINK \l _Toc264557488 1.1 课题背景及目的 PAGEREF _Toc264557488 \h 1 HYPERLINK \l _Toc264557489 1.2 国内外研究现状及发展趋势 PAGEREF _Toc264557489 \h 2 HYPERLINK \l _Toc264557490 1.2.1 数控系统的发展趋势 PAGEREF _Toc264557490 \h 2 HYPERLINK \l _Toc264557491 1.2.2 我国数控车床的研究现状及发展趋势 PAGEREF _Toc264557491 \h 3 HYPERLINK \l _Toc264557492 1.3 课题研究内容及方法 PAGEREF _Toc264557492 \h 5 HYPERLINK \l _Toc264557493 1.3.1 课题研究内容 PAGEREF _Toc264557493 \h 5 HYPERLINK \l _Toc264557494 1.3.2 研究方法 PAGEREF _Toc264557494 \h 5 HYPERLINK \l _Toc264557499