气门导管自动浸油生产线控制系统研制

发布时间：2018-01-11 14:14

本文关键词：气门导管自动浸油生产线控制系统研制　出处：《合肥工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：气门导管是内燃机气门中一个重要的零件。在整个气门工作中,气门导管不仅有导向作用,同时还承受着冲击性交变载荷和排气门25%的热量传出。现在随着粉末冶金技术的发展,铁基粉末冶金技术被广泛的应用于气门导管制造,新技术使整个制造过程方便自动化批量生产,材料利用率高,生产效率高,可以有效的降低生产成本和生产过程中对能源和资源的消耗。现阶段国内企业气门导管的整个制造过程的自动化水平低,整条生产线的物料搬运,机床操控都是人工完成,没有相应的物料传送和自动操作设备,同时现场噪声污染和空气污染严重。因此,针对气门导管的浸油封装研发出一条自动化、柔性化生产线来减少工人的劳动强度同时提升企业竞争力是具有很重要的现实价值的。具体分析了现有生产线的工作要求,认真研究了原有设备、工艺以及工人的操作习惯,确定生产线机械方案,设计生产线自动控制流程。整个生产线由导管上料机、浸油翻转机、分装输送机、电子秤等一系列设备组成。针对确定的控制系统方案,进行了硬件方案的设计和选型。尤其针对核心元件PLC、触摸屏、伺服电机和气动元件进行了多方面的考量、仔细认真地分析和计算,最终确定了合适的型号。进行了电气控制回路的设计:主回路和继电器控制回路、PLC控制回路、交流伺服伺服系统电路、气动回路的设计等,完成了控制柜的制作。基于硬件方案,设计了控制系统的软件结构,研究并实现了单一触摸屏和三个PLC的通讯。基于模块化编程的思想,对PLC程序进行了设计和编写。设计了与PLC程序相互配合的触摸屏程序。在设备总体设计组装完成后进行了原理验证性调试和现场调试,纠正了一系列组装和设计上的问题。针对导管端面打痕问题,进行了方案的升级和改进。针对现场不同的上料需求调整了设备各个部分的工作时序,满足了生产节拍。进行了后期维护,解决了长时间生产中出现的问题,制订了后期维护的规范。目前,导管上料机运行良好,获得好评,企业准备大面积推广,已经获得后续订单。
[Abstract]:Valve conduit is an important part of internal combustion engine valve. In the whole valve operation, valve guide not only has a guiding role. With the development of powder metallurgy technology, iron based powder metallurgy technology is widely used in the manufacture of valve tubes. The new technology makes the whole manufacturing process convenient and automatic batch production, high material utilization rate and high production efficiency. Can effectively reduce the production costs and production process of energy and resource consumption. At this stage the domestic enterprises the entire manufacturing process of the valve duct automation level is low, the entire production line of material handling. Machine tool control is done manually, there is no corresponding material transfer and automatic operation equipment, and the field noise pollution and air pollution are serious. Therefore, an automation is developed for the oil-immersed packaging of valve duct. Flexible production line to reduce the labor intensity of workers and enhance the competitiveness of enterprises is of great practical value. The specific analysis of the existing production line work requirements, a careful study of the original equipment. Process and operation habits of the workers, determine the production line mechanical plan, design the production line automatic control flow. The whole production line by pipe feeding machine, oil dipping machine, separate conveyor. A series of equipments such as electronic scale are composed. The hardware scheme is designed and selected according to the determined control system, especially for the core components, PLC, touch screen. The servo motor and pneumatic components are considered in many aspects, carefully analyzed and calculated, and the appropriate model is finally determined. The design of the electrical control loop is carried out: the main circuit and the relay control circuit. PLC control circuit, AC servo servo system circuit, pneumatic circuit design, completed the design of the control cabinet. Based on the hardware scheme, designed the software structure of the control system. The communication between a single touch screen and three PLC is studied and realized, which is based on the idea of modular programming. The PLC program is designed and written. The touch screen program is designed to cooperate with the PLC program. After the overall design and assembly of the equipment is completed, the principle verification debugging and field debugging are carried out. A series of assembly and design problems have been corrected. Aiming at the indentation of the end surface of the pipe, the scheme has been upgraded and improved. The working sequence of each part of the equipment has been adjusted according to the different feeding requirements on the spot. Satisfied the production beat. Carried out the later maintenance, solved the problems in the production for a long time, formulated the later maintenance standard. At present, the pipe feeder works well, obtains the high praise, the enterprise prepares to popularize in a large area. A follow-up order has been obtained.
【学位授予单位】：合肥工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP273;TK406

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