本文選題：金剛砂線 + 速度同步��； 參考：《華東理工大學(xué)》2017年碩士論文

【摘要】：磁性材料、硅晶體、寶石等類似材料由于其具有脆性大、表面加工質(zhì)量要求高等特點,不適合采用常規(guī)的機加工工藝進行加工。工業(yè)生產(chǎn)中使用的多線切割機雖然較好地解決了這一問題,但是由于其系統(tǒng)復(fù)雜,造價昂貴,主要適用于大批量生產(chǎn),不能滿足樣片及實驗室單片切割的要求。針對這一問題,本文提出使用固結(jié)金剛砂線切割技術(shù)的工藝方法,研制了一種具有與多線切割機類似性能的小型金剛砂線切割機,并對其進行了試驗研究和理論分析。論文開展了以下工作:(1)開展了金剛砂線切割機的方案研究。針對張力調(diào)節(jié)與控制的復(fù)雜性,提出了采用氣彈簧為金剛砂線提供張力的技術(shù)方案,并通過同軸結(jié)構(gòu)實現(xiàn)收、放線輪的轉(zhuǎn)速一致,實現(xiàn)了切割過程中張力的穩(wěn)定控制。在此基礎(chǔ)上,完成了金剛砂線切割機的機械設(shè)計。(2)進行了控制系統(tǒng)的硬件搭建和軟件開發(fā)�；贛odbus協(xié)議,使用LabVIEW開發(fā)了人機交互界面,開展了相關(guān)技術(shù)的研究。集成金剛砂線切割機各功能模塊,實現(xiàn)了便捷控制。(3)建立了金剛砂線切割的物理模型和單顆金剛砂切削深度模型;分析了切割過程中金剛砂線上最大張緊力和最大進給力;研究了切割速度、進給速度等工藝參數(shù)對切割表面質(zhì)量的影響,獲得了切片表面質(zhì)量較優(yōu)效果時的切割速度、進給速度等工藝參數(shù)。(4)硬脆材料的切片試驗結(jié)果表明:金剛砂線切割機樣機控制系統(tǒng)各模塊之間運行協(xié)調(diào),氣彈簧在張力調(diào)節(jié)方面切實可行;切割過程中材料損耗少,鋸切運行平穩(wěn),所切薄片表面質(zhì)量較好。本課題設(shè)計的金剛砂線切割機采用了氣彈簧調(diào)節(jié)金剛砂線張力,利用同軸結(jié)構(gòu)實現(xiàn)繞線輪的轉(zhuǎn)速一致,并且通過LabVIEW實現(xiàn)了金剛砂線切割機的便捷控制。研究方法和思路對于開發(fā)新型線切割機具有良好的指導(dǎo)意義。
[Abstract]:Due to its high brittleness and high quality of surface processing, magnetic materials, silicon crystals, gemstones and other similar materials are not suitable to be machined by conventional machining technology. The multi-wire cutting machine used in industrial production has solved this problem well, but because of its complex system and high cost, it is mainly suitable for mass production and can not meet the requirements of sample cutting and laboratory monolithic cutting. In order to solve this problem, this paper puts forward a new technology of wire cutting with bonded Emery, and develops a kind of small Emery cutting machine with similar performance as multi-wire cutting machine, and makes experimental research and theoretical analysis on it. In this paper, the following work is carried out: 1) the project of Emery wire cutting machine is studied. In view of the complexity of tension regulation and control, the technical scheme of using gas spring to provide tension for Emery wire is put forward, and the coaxial structure is used to realize the collection, the rotational speed of the discharge wheel is consistent, and the stable control of tension in the cutting process is realized. On this basis, the mechanical design of Emery cutting machine is completed. 2) the hardware construction and software development of the control system are carried out. Based on Modbus protocol, the man-machine interface is developed with LabVIEW, and the related technology is studied. The physical model of Emery wire cutting and the cutting depth model of single Emery are established, and the maximum tension and feed force on Emery wire during cutting are analyzed. The effects of cutting speed and feed rate on the cutting surface quality are studied. The cutting speed is obtained when the slice surface quality is better. The results of slicing test of hard and brittle materials show that: the operation of the control system of the prototype of Emery cutting machine is coordinated, the air spring is feasible in tension regulation, and the material loss is less in the cutting process. The sawing operation is stable and the surface quality of the sliced slice is good. The Emery wire cutting machine designed in this paper adopts gas spring to adjust the tension of Emery wire, uses coaxial structure to realize the same speed of winding wheel, and realizes the convenient control of Emery wire cutting machine by LabVIEW. The research method and train of thought have good guiding significance for the development of new line cutting machine.
【學(xué)位授予單位】：華東理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TG48

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