CKX30纸箱成型机凸轮连杆机构的优化与改进设计

发布时间：2018-05-03 12:27

  本文选题：纸箱成型机 + 凸轮连杆机构　； 参考：《西安工业大学》2014年硕士论文

【摘要】：工业技术水平的不断提高,促进了人类文明的进步,也不断促进着商品经济的发展。伴随着经济急速发展,商品的供给更加快速、更加有效,商品的个性化程度也不断提升。因此,包装机械在包装行业、消费和商品流通领域的作用显得越发重要。包装产业已经成为区域经济的重要支柱产业,成为反映经济发展水平的重要指标之一。因此,对纸箱成型机凸轮连杆机构的研究是很有意义的。本课题来源于西安中轻包装机械有限公司纸箱成型机改造项目。凸轮连杆机构作为CKX30纸箱成型机的核心机构,其传动效率、工作端运动轨迹、运动学性能都应具有较高的标准。但在机器运行中,由于凸轮轮廓曲线或连杆尺寸等各参数没有达到最优,导致从动件工作端的运行轨迹与工作要求有所偏差,出现箱体成型速度降低,箱体损坏以及箱体成型失败等情况。因此需要对凸轮连杆机构进行分析研究。本文利用Creo软件对凸轮连杆机构进行三维建模,建立仿真模型后进行结构分析、运动学分析,了解各构件与工作端运动规律之间的关系,进而对连杆机构完成尺寸修改的可行性优化；以连杆工作端工作要求的运动规律为基础,通过连杆工作端的微分方程结合凸轮连杆机构的动力学方程,对凸轮轮廓曲线进行了推导。同时,针对由凸轮几何形状不规则而产生的重心偏移的问题进行了分析与优化；最终通过ADAMS对优化后的连杆机构工作端的位置、速度和加速度以及滚子凸轮之间的接触力对连杆工作端的影响进行了分析与验证,证明改进后的机构设计各项性能指标得到了提高。
[Abstract]:The continuous improvement of industrial technology promotes the progress of human civilization and the development of commodity economy. With the rapid development of economy, the supply of commodities is faster and more effective. Therefore, packaging machinery in the packaging industry, consumption and commodity circulation of the role appears to be more and more important. Packaging industry has become an important pillar industry of regional economy and one of the important indicators reflecting the level of economic development. Therefore, the study of cam linkage mechanism of carton forming machine is of great significance. This topic comes from Xi'an medium-light packing Machinery Co., Ltd. As the core mechanism of CKX30 carton forming machine, the cam linkage mechanism should have a higher standard of transmission efficiency, working end motion track and kinematics performance. However, in the operation of the machine, because the parameters such as cam contour curve or connecting rod size do not reach the optimum, the running track of the working end of the follower deviates from the working requirement, and the forming speed of the box body decreases. Box damage and box forming failure and so on. Therefore, it is necessary to analyze and study the cam linkage mechanism. In this paper, Creo software is used to model the cam linkage mechanism. After the simulation model is established, the structure analysis and kinematics analysis are carried out to understand the relationship between the movement law of each component and the working end. On the basis of the kinematic law of the working end of the connecting rod and the differential equation of the working end of the connecting rod, the dynamic equation of the cam linkage mechanism is combined. The cam contour curve is deduced. At the same time, the center of gravity offset caused by the irregular geometry of the cam is analyzed and optimized. Finally, the position of the working end of the optimized linkage mechanism is analyzed and optimized by ADAMS. The effects of velocity, acceleration and contact force between roller cams on the working end of connecting rod are analyzed and verified. It is proved that the performance indexes of the improved mechanism design have been improved.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TB486
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本文编号：1838480