本文選題：柔性冷彎成型 + 運(yùn)動(dòng)控制�。� 參考：《北方工業(yè)大學(xué)》2012年碩士論文

【摘要】：隨著汽車、建筑等行業(yè)對(duì)變截面冷彎型材需求的提出,柔性冷彎成型技術(shù)應(yīng)運(yùn)而生。與發(fā)展較為成熟的傳統(tǒng)冷彎成型技術(shù)相比,柔性冷彎成型在成型機(jī)理、成型機(jī)結(jié)構(gòu)研制和成型機(jī)控制等發(fā)面都處于初步研究階段。國外如德國、瑞士、法國、日本等已開發(fā)的設(shè)備還處于實(shí)驗(yàn)研究階段,國內(nèi)北方工業(yè)大學(xué)填補(bǔ)了此項(xiàng)技術(shù)在國內(nèi)研究的空白。 柔性冷彎成型因其具有成本低,效率高,壽命長,噪聲低,污染小等優(yōu)點(diǎn),在汽車、建筑、家具等領(lǐng)域具有廣闊的應(yīng)用前景。目前,變寬度、變高度和超高強(qiáng)鋼材料的冷彎成型是國內(nèi)外研究的熱點(diǎn)問題。本文先對(duì)國外具有代表性的成型機(jī)原理進(jìn)行簡要概述,對(duì)成型控制方法做初步探討,并指出設(shè)計(jì)超高強(qiáng)鋼成型機(jī)時(shí)面臨的難題。然后闡述了北方工業(yè)大學(xué)提出的一種基于雙齒條單齒輪機(jī)構(gòu)的成型機(jī),該成型機(jī)結(jié)構(gòu)緊湊,承載力大,適用于變寬度和高強(qiáng)鋼材料的冷彎型材的成型。 柔性冷彎成型生產(chǎn)的是截面形狀沿縱向變化的型材,因此需要控制軋輥相對(duì)板材做橫向移動(dòng),同時(shí)要求控制軋輥旋轉(zhuǎn)到與板材邊緣相切。正是板材的前進(jìn),軋輥橫向的移動(dòng)和旋轉(zhuǎn)這三種運(yùn)動(dòng)相互協(xié)作才生產(chǎn)出最終所需的變截面型材產(chǎn)品。此論文正是致力于解決柔性冷彎成型中的復(fù)雜運(yùn)動(dòng)控制問題,提出了軋輥的核心控制算法,并用VC++和OpenGL進(jìn)行了編程和軌跡仿真,驗(yàn)證了求取角度的正確性。利用這種算法可以成型出平面任意二維曲線輪廓的冷彎型材,該算法可以集成到開放式的柔性冷彎成型控制系統(tǒng)中,控制伺服電機(jī)按程序給定指令運(yùn)動(dòng),從而實(shí)現(xiàn)最終的板材成型。 最后,本文針對(duì)雙齒條單齒輪機(jī)構(gòu)的柔性冷彎成型機(jī)的控制問題做了近一步探討。解決了該機(jī)型的軌跡規(guī)劃問題和控制齒條移動(dòng)的電機(jī)位置指令分配問題。利用VC++編程求解出齒條移動(dòng)的插補(bǔ)點(diǎn)信息,并將插補(bǔ)點(diǎn)信息導(dǎo)入到SolidWorks中進(jìn)行了仿真驗(yàn)證,通過求得的軌跡和實(shí)際軌跡進(jìn)行比較,驗(yàn)證了此算法的正確可行性,對(duì)控制系統(tǒng)的開發(fā)具有指導(dǎo)和借鑒意義。
[Abstract]:With the demand of the automobile, construction and other industries for the variable section cold bending profile, flexible cold forming technology emerges as the times require. Compared with the traditional cold forming technology, flexible cold forming is in the initial stage of research, such as the forming mechanism, the structure development of the molding machine and the control of the forming machine. Abroad, such as Germany, Switzerland, France, Japan and other developed equipment is still in the stage of experimental research, the domestic Northern University of Technology filled the gap in domestic research. Because of its advantages of low cost, high efficiency, long life, low noise and low pollution, flexible cold forming has a broad application prospect in automobile, building, furniture and other fields. At present, the cold forming of variable width, height and ultra-high strength steel materials is a hot topic at home and abroad. In this paper, the principle of representative molding machine abroad is briefly summarized, the control method of forming is discussed, and the difficulties in designing ultra-high strength steel forming machine are pointed out. Then, a kind of forming machine based on double rack single gear mechanism proposed by Northern University of Technology is described. The machine has compact structure and large bearing capacity, which is suitable for forming cold bending profile of variable width and high strength steel material. Flexible cold forming produces profiles whose section shape changes along the longitudinal direction, so it is necessary to control the roll to move laterally from the sheet to the plate, and to rotate the roll to tangent the edge of the plate at the same time. It is the advance of the plate, the lateral movement and rotation of the roll that cooperate with each other to produce the final product of the variable section profile. This paper is devoted to solving the complex motion control problem in flexible cold forming. The core control algorithm of roll is put forward, and the correctness of angle calculation is verified by programming and trajectory simulation with VC and OpenGL. By using this algorithm, the cold-formed profile of planar two-dimensional curve profile can be formed. The algorithm can be integrated into the open flexible cold-forming control system, and the servo motor can be controlled to move according to the program given instructions. In order to achieve the final plate forming. Finally, the control problem of the flexible cold forming machine of double rack single gear mechanism is discussed in this paper. The problem of locus planning and the assignment of motor position instructions to control rack movement are solved. The interpolation point information of rack movement is solved by VC programming, and the interpolation point information is imported into SolidWorks for simulation verification. The correct feasibility of the algorithm is verified by comparing the obtained trajectory with the actual track. It is of guiding and referential significance to the development of control system.
【學(xué)位授予單位】：北方工業(yè)大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2012
【分類號(hào)】：TH165

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前3條

1 陽振峰;高強(qiáng)鋼三維輥彎成形生產(chǎn)線樣機(jī)機(jī)械系統(tǒng)動(dòng)力學(xué)分析[D];北方工業(yè)大學(xué);2013年

2 趙n，

本文編號(hào)：1821678