【作者】 杨湘达；

【导师】 王连吉；

【作者基本信息】 大连理工大学 ， 机械工程， 2012， 硕士

【摘要】 针对目前带装球口的深沟球轴承人工装配生产效率低,需求量大的现状,采用经验设计与现代设计相结合的方法,研制一种轴承自动装球机。此装球机应用于轴承内外圈均带有装球口的深沟球轴承的自动装配。利用PLC控制整机进行上料、装球、出料等顺序工作,整个系统可以实现自动运行和故障自诊断等功能。本文的主要工作如下：(1)根据深沟球轴承自动装球机功能要求,逐个分析各个装置动作过程中预定方案以及可能出现的问题,给出各机构的工作原理图,并最终确定各装置的方案和整个动作过程。(2)在确定设备总体方案的基础上,对自动装球机主要装置包括自动拨球、送球和装球装置,以及其他辅助装置进行具体结构设计,通过气缸驱动各机构完成相应动作,明确各装置相对位置,给出各装置结构图,详细说明工作原理,并利用ANSYS软件验证自动装球机轴承座和机架的强度和刚度是否满足要求。(3)基于所设计的机械结构,对设备的电气控制系统进行功能分析,选择适合各装置的气缸类型,确定设备的气压传动系统,利用PLC实现设备的自动控制,做出设备运行流程图,给出自动装球机内外圈一次定位开始和第四次压球程序。该设备已经应用于生产实际,装球成功率可达98%,平均速度为11s/个,降低了工人的劳动强度,提高了该类轴承的装配效率,增加了设备的自动化程度,实现了手工装配到自动装配的转变。更多还原

【Abstract】 Directed at inefficiency of manual assembling and large requirement about deep groove ball bearing, automatic assembly machine is developed for deep groove ball bearing by both empirical design and modern design. This machine suits for automatic assembling of deep groove ball bearing with ball gap in both the inner and outer rings. Through control of PLC this machine is able to finish such sequential process as feeding, loading ball and blanking. The whole system takes advantage of automatic operation and self diagnosis of fault. This paper researches mainly includes the following aspects:(1) According to function requirement of automatic assembly machine of deep groove ball bearing, analyzes proposed scheme and problems that would occur in the action process of each device individually. Working principle diagram of every mechanism are given. The plans and the whole action process of each device are determined ultimately.(2) On the basis of overall scheme of the equipment, its main devices included automatic dialing, sending and putting balls and other auxiliary devices are designed specifically. Relative position of each device is identified. With regard to structure diagrams, the specific working principle is illustrated in detail. Using ANSYS software to test whether strength and stiffness of bearing block and frame meets requirement.(3) Based on the design of mechanical structure, the electrical control system of the equipment is analyzed. The suitable types of cylinder for each device are chosen and pneumatic transmission system is confirmed. PLC is used to realize the automatic control of the equipment. Operation flow diagram, beginning program of an inner and outer rings positioning and the fourth pressing ball program of the equipment are presented.The equipment has been used in actual production. The success rate is98%, and the average speed is every11seconds. It reduces the labor intensity, and improves the bearing assembly efficiency and automation. The equipment makes a transition from manual assembly to automatic assembly.更多还原