【作者】 韩旭；

【导师】 邵俊鹏；

【作者基本信息】 哈尔滨理工大学 ， 机械电子工程， 2009， 硕士

【摘要】 随着现代工业的发展和我国基本建设的兴起,各项工程对于大型设备的需求与日俱增。这就要求我们提高大型加工设备的工作效率,生产出更多的产品以适应市场的需要。重型立车作为一种重要的重型加工设备,可以通过提高其自动化程度达到提高工作效率的目的。而自动换刀系统作为一种独立的系统与重型立车配合使用,可以显著的提高重型立车的工作效率。在自动换刀装置整体设计方案中,结构形式上采用了盘式刀库和液压机械手臂想相结合的形式。通过计算转动惯量和增置阻尼装置,有效的避免了盘式刀库在起、停过程中产生的惯性冲击,提高了盘式刀库的转动精度;盘式刀库的精确旋转配合机械手臂的伸缩动作,使换刀过程可以准确执行;在控制上,采用了无触点接近式开关来控制盘式刀库和机械手臂的顺序动作,不仅提高了动作的精度,而且更加便于调整和维护。在确定了整体设计方案后,运用UG对整个换刀系统进行了实体建模和运动仿真分析。分析结果显示,整个系统无干涉,且整体运行平稳。运用ANSYS对系统的关键部件进行了受力和变形分析。结果显示:系统关键部件设计合理,变形量在设计范围之内。在数字设计的基础上,进行了实际的样机制作和样机实验。实验结果表明:实际的换刀情况与数字设计、分析的结果基本一致。样机已经能顺利的完成取刀、送刀等一系列的换刀动作。本次研究为重型立车自动换刀装置提供了有价值的设计依据。更多还原

【Abstract】 With the developing of modern industry and the booming of capital construction, the needing asked by large-scale construction for large equipments are increasing day by day. This needs us to improve the efficiency of the large equipment to output more production to meet the marketing needs. As an important heavy processing equipment, the heavy vertical should increase the efficiency by improved the degree of automatic. The magazine as an independent system worked with the heavy vertical could improve the efficiency very significantly.Use the disc-like magazine and hydraulic auto arm overall design of the program. Through the calculation of disc-like magazine’s moment of inertia and introduce the damping device, avoid the inertial impact produced when the disc-like magazine switch on and off efficiency, and improved the rotational accuracy of disc-like magazine. The disc-like magazine’s precision turned worked with the hydraulic-driven auto arm out and back make the tools change smoothly.In control model, use the non-contact proximity switch to control the magazine and the hydraulic auto arm’s action. This model do not only improves the action accuracy, but also makes the regulation and maintenance more convenient. After determine of the design program, we make solid model by UG. Then, we do the analysis of the solid model’s moving. The results tell us that, there is no interference all over the system. The system’s moving is smoothly. After this we use ANSYS to analysis the system’s ford and deformation. The results tell us that the system important part design is rational and s’deformation is in the design range.Based on the digital design, we produced physical prototype for experimental. The results tell us, the hydraulic auto arm is similar with the result of digital design and analysis. The prototype could finish the tools change action successfully.This study for heavy-duty vertical lathe of Automatic Tool Change Mechanism provides a valuable basis for the design.更多还原