【摘要】：Φ335全自動(dòng)鋼管端面銑頭倒棱機(jī)是鋼管生產(chǎn)線中的重要精加工設(shè)備,本文對(duì)Φ335全自動(dòng)鋼管端面銑頭倒棱機(jī)中自動(dòng)輸送機(jī)構(gòu)進(jìn)行了綜合性的研究,首先對(duì)鋼管自動(dòng)輸送機(jī)構(gòu)進(jìn)行了ADAMS優(yōu)化,優(yōu)化結(jié)果降低了原動(dòng)件的驅(qū)動(dòng)力和液壓能耗。通過(guò)對(duì)自動(dòng)輸送機(jī)構(gòu)中關(guān)鍵部件進(jìn)行了強(qiáng)度校核,并且進(jìn)一步對(duì)關(guān)鍵部件進(jìn)行可靠性分析,從概率論與數(shù)理統(tǒng)計(jì)的角度說(shuō)明了關(guān)鍵部件安全可靠的程度。由于關(guān)鍵部件的可靠度過(guò)高,從節(jié)約材料的角度出發(fā),對(duì)關(guān)鍵部件進(jìn)行了ANSYS結(jié)構(gòu)優(yōu)化設(shè)計(jì),優(yōu)化結(jié)果使關(guān)鍵部件重量減輕并且滿足強(qiáng)度和剛度要求。在實(shí)現(xiàn)降低能耗和節(jié)省材料的目標(biāo)后,進(jìn)一步對(duì)自動(dòng)輸送機(jī)構(gòu)進(jìn)行了振動(dòng)分析,為改善輸送機(jī)構(gòu)的振動(dòng)特性,實(shí)現(xiàn)平穩(wěn)輸送提供了數(shù)據(jù)支撐。在此基礎(chǔ)之上,對(duì)自動(dòng)輸送機(jī)構(gòu)進(jìn)行了PLC控制系統(tǒng)設(shè)計(jì),實(shí)現(xiàn)了自動(dòng)輸送和手動(dòng)輸送兩種模式,提高了生產(chǎn)效率。本課題的主要研究?jī)?nèi)容如下:(1)自動(dòng)輸送機(jī)構(gòu)的驅(qū)動(dòng)力優(yōu)化對(duì)輸送機(jī)構(gòu)中的相關(guān)桿件進(jìn)行參數(shù)化,然后對(duì)機(jī)構(gòu)中液壓缸的驅(qū)動(dòng)力采取整體和局部?jī)煞N優(yōu)化方案,從兩種優(yōu)化方案中選取最優(yōu)方案,實(shí)現(xiàn)最大程度降低液壓缸能耗的目的。優(yōu)化結(jié)果使升降機(jī)構(gòu)和橫移機(jī)構(gòu)的平均驅(qū)動(dòng)力分別下降59.4%和72.7%。(2)關(guān)鍵部件的強(qiáng)度校核和可靠性分析在ANSYS中求解出輸送機(jī)構(gòu)關(guān)鍵部件在最大載荷下的應(yīng)力分布,從而根據(jù)強(qiáng)度理論進(jìn)行關(guān)鍵部件的強(qiáng)度校核。由于基于安全系數(shù)法的強(qiáng)度校核不能定量說(shuō)明桿件安全可靠的程度,為此根據(jù)ADAMS后處理模塊中分析出載荷在正態(tài)分布下的均值和標(biāo)準(zhǔn)差,從而進(jìn)一步對(duì)關(guān)鍵部件的可靠性進(jìn)行分析,從數(shù)理統(tǒng)計(jì)與概率論的角度說(shuō)明了兩關(guān)鍵部件可靠度均為99.99%以上。(3)關(guān)鍵部件的輕量化設(shè)計(jì)由于自動(dòng)輸送機(jī)構(gòu)中關(guān)鍵部件的可靠度過(guò)高,從節(jié)省材料實(shí)現(xiàn)最大經(jīng)濟(jì)效益的目標(biāo)出發(fā),對(duì)關(guān)鍵部件進(jìn)行了ANSYS結(jié)構(gòu)優(yōu)化,優(yōu)化結(jié)果使兩關(guān)鍵部件的重量分別下降19.29%和34.98%,實(shí)現(xiàn)了關(guān)鍵部件的輕量化設(shè)計(jì)。(4)自動(dòng)輸送機(jī)構(gòu)的振動(dòng)分析對(duì)鋼管自動(dòng)輸送機(jī)構(gòu)進(jìn)行自由振動(dòng)分析和受迫振動(dòng)分析,測(cè)量出機(jī)構(gòu)的頻率響應(yīng)數(shù)據(jù),從而了解到輸送機(jī)構(gòu)的振動(dòng)特性,為避開(kāi)共振實(shí)現(xiàn)平穩(wěn)輸送提供了數(shù)據(jù)參考。(5)PLC控制系統(tǒng)設(shè)計(jì)根據(jù)該輸送機(jī)構(gòu)的運(yùn)動(dòng)要求,設(shè)計(jì)了基于順序控制的PLC控制系統(tǒng),該控制系統(tǒng)具有自動(dòng)和手動(dòng)控制模式,通過(guò)確精地自動(dòng)化輸送提高了生產(chǎn)效率,同時(shí)手動(dòng)輸送可以實(shí)現(xiàn)特殊工況下的點(diǎn)動(dòng)輸送。
[Abstract]:桅 335 automatic pipe end milling head chamfering machine is an important finishing equipment in steel pipe production line. In this paper, the automatic conveying mechanism of 桅 335 automatic pipe end milling head chamfering machine is studied comprehensively. First, the ADAMS optimization of the steel pipe automatic conveying mechanism is carried out, and the optimization results reduce the driving force and the hydraulic energy consumption of the original moving parts. By checking the strength of the key components in the automatic conveying mechanism and further analyzing the reliability of the key components, the degree of safety and reliability of the key components is explained from the point of view of probability theory and mathematical statistics. Due to the high reliability of the key components, the ANSYS structural optimization design of the key components is carried out from the point of view of material saving. The optimization results reduce the weight of the key components and meet the requirements of strength and stiffness. After realizing the goal of reducing energy consumption and saving materials, the vibration analysis of the automatic conveying mechanism is carried out, which provides data support for improving the vibration characteristics of the conveying mechanism and realizing the smooth transportation. On the basis of this, the PLC control system of the automatic conveying mechanism is designed, and the two modes of automatic conveying and manual conveying are realized, and the production efficiency is improved. The main research contents of this paper are as follows: (1) the driving force optimization of the automatic conveying mechanism parameterizes the related members of the conveying mechanism, and then adopts two optimization schemes of the driving force of the hydraulic cylinder in the mechanism, one is the whole and the other is the local one. The purpose of minimizing the energy consumption of hydraulic cylinder is achieved by selecting the optimal scheme from two kinds of optimization schemes. The results of optimization reduce the average driving force of lifting mechanism and transverse mechanism by 59.4% and 72.7% respectively. (2) strength check and reliability analysis of key components are used in ANSYS to find out the stress distribution of the key parts of the conveying mechanism under the maximum load. According to the strength theory, the strength check of the key parts is carried out. Because the strength check based on the safety factor method can not quantitatively explain the safety and reliability of the bar, the mean value and standard deviation of the load under normal distribution are analyzed according to the ADAMS post-processing module. In order to further analyze the reliability of key components, From the point of view of mathematical statistics and probability theory, it is shown that the reliability of the two key components is above 99.99%. (3) the lightweight design of the key components is due to the high reliability of the key components in the automatic conveying mechanism. In order to save materials and achieve maximum economic benefit, the ANSYS structure of key components is optimized. The optimization results reduce the weight of the two key components by 19.29% and 34.98%, respectively. The lightweight design of the key components is realized. (4) the vibration analysis of the automatic conveying mechanism is carried out on the free vibration analysis and forced vibration analysis of the steel pipe automatic conveying mechanism. The frequency response data of the mechanism are measured, and the vibration characteristics of the conveying mechanism are understood, which provides a data reference for the smooth transmission without resonance. (5) the design of the PLC control system is based on the motion requirements of the conveying mechanism. The PLC control system based on sequential control is designed. The control system has automatic and manual control mode, which improves the production efficiency by means of accurate and automatic transportation, and can realize the point moving transport under special working conditions.
【學(xué)位授予單位】：天津理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類號(hào)】：TH22

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