滚动直线导轨设计及相关技术研究毕业论文
20页1、滚动直线导轨设计及相关技术研究摘要:就目前来说,世界的制造加工业对机床的加工要求越来越高,也就是对机床的各项性能都有更高的要求。比如说:高速度、高刚度和高精度。机床的发展水平是衡量一个国家工业的重要标志。机床主要由主轴和导轨两部分组件构成,而导轨的重要性要更强,其中直线滚动导轨占有很大优势,被普遍应用于数控机床和其他的行业中。本课题主要研究了机床的整体布局结构,轨道的直线度分析,还有滚珠丝杠的刚度计算,现在分别详细的介绍一下:(1)首先,在通过阅读国内外的文献,了解了机床的整体结构后,本文先确定了机床的整体布局方式,然后对机床导轨性能进行分析;对溜板箱的计算设计,对滚珠的长度和数量的进行了相关的设计。 (2)其次,对导轨的直线度进行分析,通过对直线度的定义分析,综合对比选择直线度的测量方法和评定方法。(3)最后,对滚珠丝杠的刚度进行计算,通过对滚珠丝杠、丝杠轴、螺母和支撑架的轴向刚度通过算式进行计算分析,计算了滚珠丝杠的承载能力,以更好地配合直线导轨。关键词:滚动直线导轨,直线度,滚珠丝杠,选型ILinear guides design and related technology r
2、esearchAbstract: Now, the worlds manufacturing industry need high requirements for the machining, that is, the performance of the machine have higher requirements. For example: high speed, high rigidity and precision. The level of development of machine tools is an important indicator to measure a countrys industry. Machine tool spindle assembly consists of two parts and the rail, and the importance of rail to be stronger, in which the linear motion guide large advantages, it is widely used in C
3、NC machine tools and other industries.This paper studies the structure of the overall layout of the machine, straightness track analysis, as well as ball screw stiffness calculation, are now described in detail here.(1)First, by reading literature at home and abroad to understand the overall structure of the machine, the paper first determine the overall layout of the machine, and then analyze the performance of the machine tool guide; on the apron of the computational design of balls the length
4、 and number were related to the design.(2)Next, the straightness of the rail is analyzed by the definition of straightness of analysis, synthesis, comparison measurement method and evaluation method selection straightness.(3)Finally, the stiffness of the ball screw is calculated by the axial stiffness of the ball screw, screw shaft, nut and the support frame is calculated by formula analysis to calculate the carrying capacity of the ball screw to better fit linear guidKeywords:linear guides, str
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