机械5

全自动薄壁不锈钢管冷弯机设计 摘要 薄壁不锈钢管被大量应用于现代工业，而随着工业发展的进步，对不锈钢管的质量要求越来越高，相应的对最易引起管材质量问题的弯处提出了更高的要求。本文设计的全自动弯管机主要作用就是解决管材弯曲质量不稳定的问题。该装置以液压系统为基础 ，同时辅以PLC控制技术，为弯管的可靠性提供支撑。整个装置中穿芯机构、弯管机构为设计要点。穿芯机构中芯珠的形状、珠之间的连接方式将极大的影响弯管质量，因此采用高强度材料制作芯珠，链条式的连接来解决管材弯制过程中芯棒随管材一同弯曲的问题。弯管机构采取绕弯的方式，在液压缸作用下被压紧，最后液压马达带动模盘转动进行弯管。为满足范围角度及管材直径的弯管需要，模盘、芯珠等零件可随管材不同而相应更换。使用该弯管机进行弯管能明显提高生产效率与弯管质量，与传统管材弯曲机械相比具有明显的优越性。 关键词：薄壁不锈钢管；回转装置；全自动；冷弯 ABSTRACT Thi
n-walled stai
nless steel tube is widely used i
n moder
n i
ndustry, a
nd with the progress of i
ndustrial developme
nt, the quality of stai
nless steel tube of the i
ncreasi
ngly high dema
nd, correspo
ndi
ng to the most easy cause of be
nd pipe quality problem put forward higher requireme
nts. The mai
n fu
nctio
n of the automatic pipe be
ndi
ng machi
ne desig
ned i
n this paper is to solve the problem of u
nstable quality of pipe be
ndi
ng. The device is based o
n hydraulic system a
nd is suppleme
nted by PLC co
ntrol tech
nology to provide support for the reliability of the be
nd. The core pe
netrati
ng mecha
nism a
nd the be
nt pipe mecha
nism are the key poi
nts i
n the desig
n of the whole device. Co
n
nectio
n betwee
n cori
ng mecha
nism i
n core bead shape, bead will affect the be
ndi
ng quality greatly, so the productio
n of high stre
ngth material core beads, co
n
necti
ng chai
n type to solve the ma
ndrel tubi
ng be
ndi
ng process with pipe be
ndi
ng problems together. Take the way of be
ndi
ng pipe be
ndi
ng mecha
nism, is pressed u
nder the actio
n of the hydraulic cyli
nder, the hydraulic motor drives the mold disc rotati
ng pipe.I
n order to meet the a
ngle of the pipe a
nd the diameter of pipe, the parts ca
n be replaced by differe
nt pipes. The be
ndi
ng tube ca
n obviously improve the productio
n efficie
ncy a
nd the be
ndi
ng quality, which is obviously superior to the traditio
nal pipe be
ndi
ng machi
ne. Key words: thi
n wall stai
nless steel tube; rotary device；automatic; cold be
ndi
ng; 目录 摘要................................................................. I ABSTRACT .............................................................. II 1.绪论............................................................... 1 1.1课题的背景1 1.2本课题的研究内容1 1.3目前研究的概况和发展趋势1 2.弯管机构............................................................. 2 2.1弯管方式对比2 2.2弯管结构分析5 2.3校核与计算5 3.卸料机构及机架....................................................... 7 3.1卸料机构方案对比7 3.2卸料结构分析8 3.3机架设计8 4.液压及PLC控制系统................................................. 10 4.1液压系统简介10 4.2弯管液压系统组成10 4.3液压元件的选择11 4.2 PLC控制系统13 总结.................................................................. 16 致谢................................................................ 17 参考文献.............................................................. 18