本文選題：減震器筒 + ANSYS/LS—DYNA��； 參考：《遼寧工業(yè)大學(xué)》2014年碩士論文

【摘要】：本文主要針對減震器筒的外形修整和安裝孔加工展開研究。在傳統(tǒng)的筒加工中，減震器筒的加工主要是采用沖床進行加工，這樣的加工方式不僅加工效率較低，而且加工質(zhì)量很難達到要求、難以確定較好的加工參數(shù)。本文采用新的加工方法，解決了傳統(tǒng)加工的不足之處，并且結(jié)合了塑性成型和沖壓加工技術(shù)的國內(nèi)外發(fā)展最新趨勢和現(xiàn)代化數(shù)字技術(shù)，展開了整形沖孔一體機的設(shè)計及其關(guān)鍵技術(shù)的研究，旨在使一體機具備節(jié)能、高效的特點。 本文首先采用了氣、液相結(jié)合的方式對整形沖孔一體機進行了設(shè)計，擬定了液壓和氣壓原理圖，完成了設(shè)備的工位設(shè)計、結(jié)構(gòu)設(shè)計和整機設(shè)計，初步確定了設(shè)備的主要加工參數(shù)。 為了確定減震器筒加工設(shè)備的加工參數(shù)，實現(xiàn)快速、高效率、高加工質(zhì)量的目標(biāo)，本文采用ANSYS/LS—DYNA對沖孔全過程進行數(shù)值模擬，，得到了工件隆起處最大位移和沖裁力與沖頭進給速度的關(guān)系曲線，合理確定了沖孔加工的沖頭進給速度、確切的沖裁力等主要技術(shù)參數(shù)；為了實現(xiàn)一體機的液壓系統(tǒng)需要滿足大載荷、大沖擊的功能，保證加工穩(wěn)定、可靠，設(shè)計過程中將ANSYS/LS—DYNA數(shù)值模擬得到的沖裁力運用到?jīng)_孔工位的液壓系統(tǒng)設(shè)計中，使液壓系統(tǒng)的設(shè)計更加精確、可靠。 考慮到一體機的穩(wěn)定性和安全性，本文結(jié)合ANSYS/LS—DYNA對沖孔過程的數(shù)值模擬結(jié)果和ANSYS/Fatigue tool模塊對不同表面處理的沖頭進行疲勞壽命的預(yù)測，得到不同表面處理的沖頭的預(yù)期疲勞壽命。 最后，文本利用SolidWorks提供的3D Meeting和3D Instant Website兩個模塊構(gòu)建了協(xié)同設(shè)計平臺，為用戶提供了各部門高效協(xié)作、協(xié)同設(shè)計的協(xié)同設(shè)計環(huán)境。 一體機的設(shè)計克服了傳統(tǒng)減震器筒加工方法的不足，并且結(jié)合現(xiàn)代數(shù)字化技術(shù)使整形沖孔一體機的設(shè)計更加可靠，使減震器筒的加工效率更高、加工質(zhì)量更好，為傳統(tǒng)企業(yè)設(shè)備的升級換代開辟了渠道，減少了企業(yè)設(shè)計成本，并且保證了生產(chǎn)設(shè)備的可靠性和產(chǎn)品加工的質(zhì)量。本文研究的加工方法和工藝參數(shù)確定方法對其它孔加工設(shè)備具有借鑒和參考價值。
[Abstract]:This paper mainly focuses on the shape dressing of shock absorber cylinder and the machining of installation hole. In the traditional cylinder machining, the shock absorber barrel is mainly processed by punching machine. This kind of processing method is not only low efficiency, but also difficult to meet the requirements of processing quality, so it is difficult to determine the better processing parameters. In this paper, the new processing method is adopted to solve the shortcomings of traditional machining, and the latest development trend of plastic forming and stamping technology and the modern digital technology are combined. In this paper, the design and key technology of the integrated shaping punching machine are studied. The purpose of this paper is to make the integrated machine have the characteristics of energy saving and high efficiency. In this paper, the integrated shaping punching machine is designed by the combination of gas and liquid at first, and the hydraulic and pneumatic schematic diagram is drawn up. The work station design, the structure design and the whole machine design of the equipment are completed. The main processing parameters of the equipment were preliminarily determined. In order to determine the machining parameters of shock absorber barrel and realize the goal of fast, high efficiency and high machining quality, this paper uses ANSYS/LS-DYNA to simulate the whole process of punching. The relation curves between the maximum displacement and blanking force and the feed speed of the punch are obtained, and the main technical parameters, such as the feed speed of the punch head and the exact punching force, are reasonably determined. In order to realize the hydraulic system of the integrated machine, it is necessary to satisfy the functions of large load and large impact, and to ensure the stability and reliability of machining. In the design process, the blanking force obtained by ANSYS/LS-DYNA numerical simulation is applied to the hydraulic system design of the punching station. The design of hydraulic system is more accurate and reliable. Considering the stability and safety of the integrated machine, this paper combines the numerical simulation results of ANSYS/LS-DYNA and the ANSYS/Fatigue tool module to predict the fatigue life of the punches with different surface treatments. The expected fatigue life of punches with different surface treatments was obtained. Finally, the paper constructs a collaborative design platform based on 3D Meeting and 3D Instant Website provided by SolidWorks, which provides a collaborative design environment for users. The design of the integrated machine overcomes the shortcomings of the traditional processing method of the shock absorber, and combines the modern digital technology to make the design of the integral machine of shaping and punching more reliable, so that the processing efficiency of the shock absorber tube is higher and the machining quality is better. It opens up the channel for the upgrading of the traditional enterprise equipment, reduces the design cost of the enterprise, and ensures the reliability of the production equipment and the quality of the product processing. The processing method and process parameter determination method studied in this paper have reference and reference value for other hole processing equipment.
【學(xué)位授予單位】：遼寧工業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：TB535.1

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