薄壁不锈钢管切割机的研发

发布时间：2018-01-08 12:33

本文关键词：薄壁不锈钢管切割机的研发　出处：《湖北工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：薄壁不锈钢管由于其本身具有强度高、耐冲击、耐高温、韧性好、良好的力学性能和优良的耐腐蚀性能等特点,无论是在航空航天高科技领域还是在建筑、消防、排水、工业等生活领域应用的越来越广泛。而随着零部件的精度要求越来越高,对薄壁不锈钢管的切割精度要求也越来越高。我国目前的薄壁管材的加工方法尚存在许多不足之处,与国外发达国家相比也存在着一定的差距,因此设计一种结构简单、高精度、自动化程度高的薄壁不锈钢管切割机是很有必要的。本文在综合分析了国内外薄壁不锈钢管切割机研究现状的基础上,以壁厚为1.0mm~1.5mm、管径为?100mm~?150mm的409不锈钢管为对象,研究了其切削特性和切割工艺,确定了传动方案,提出了采用伺服电机控制的双刀对称行星式无极调速切割方法;设计了刀具旋转切割系统,包括公转切割装置的设计、进给机构的设计等;设计了V型夹紧送料结构和冷却系统等,并利用ANSYS软件进行了主要结构的模拟仿真和优化;制造出了物理样机并开展了不锈钢管的切割试验。试验结果表明:设计的行星式切管机能够满足切割要求,可同时实现刀具的进给直线运动、刀盘公转运动以及主切削刀具的自动旋转运动等且可达到无极调速的要求,夹紧系统可以实现自动定心、装夹牢靠、定位准确、装卸方便、高效可靠等要求,冷却系统可保证刀具的有效冷却,从而提高切割质量、效率和刀具的寿命。通过试切割实验,表明切割的切口端面无毛刺,尺寸精度达到要求。研制的薄壁不锈钢管切割机结构简单,运行稳定,总体设计满足预期要求。
[Abstract]:Thin-walled stainless steel tube due to its high strength, impact resistance, high temperature resistance, good toughness, good mechanical properties and excellent corrosion resistance and other characteristics, whether in the field or in the aerospace high-tech building, fire protection, drainage, industrial applications and other areas of life more and more widely. And with the precision parts more and more high, the cutting precision of thin-walled stainless steel tube is more and more high. The processing method of thin-walled tube at present in our country there are still many shortcomings, compared with the developed countries there is a certain gap, so the design of a simple structure, high precision, high degree of automation of the thin-wall stainless steel pipe cutting machine it is necessary. Based on synthetic analysis of the research status of cutting machine at home and abroad of thin-walled stainless steel pipe, the wall thickness is 1.0mm~1.5mm, diameter? 100mm~? 150mm 409 stainless steel pipe as the object, Study on the cutting performance and cutting process, determine the transmission scheme, puts forward the double symmetric planetary servo motor stepless speed control method of cutting tool design; rotary cutting system, including the design of the revolution of the cutting device feeding mechanism design; design of V type clamping feeding structure and cooling system etc., and carried out a simulation and optimization of the main structure by using ANSYS software; making the physical prototype and carried out cutting test of stainless steel tube. The experimental results show that the design of the planetary cutting machine can meet the cutting requirements, can realize the linear motion of the tool feed at the same time, the cutter revolution and the main cutting tool automatically rotary motion and can achieve stepless speed control requirements, system can realize automatic centering clamping, clamping reliable, accurate positioning, convenient handling, high reliability requirements, the cooling system can be guaranteed The effective cooling of the cutter can improve the cutting quality, efficiency and tool life. Through trial cutting experiments, it shows that the cutting face has no burrs and the size accuracy is up to the requirement. The thin wall stainless steel pipe cutting machine developed by the authors has simple structure and stable operation, and the overall design meets the expected requirements.

【学位授予单位】：湖北工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TG48

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