【摘要】：對液晶面板邊緣凸起檢測設備的研發(fā)是為了甄選出具有較大凸起的半成品面板,完善工廠的生產(chǎn)工藝。現(xiàn)有的邊緣檢測設備分別利用機器視覺原理或光電傳感器掃面方式來實現(xiàn)。本課題來源是實習基地與京東方公司合作的研發(fā)項目,設計一臺利用位移傳感器實現(xiàn)液晶面板邊緣檢測功能的自動化設備。該設備分為三個工位,分別是傳輸工位、搬運工位和檢測工位。由于設備驅動機構對各工位工作的穩(wěn)定性有很大的影響,于是本文主要針對三個工位中的驅動部分進行了深入分析,為實際的設計工作提供理論支撐。本文主要從以下幾方面進行了分析與研究。對傳輸工位的扭矩傳遞機構,提出利用磁性齒輪代替?zhèn)鹘y(tǒng)機械齒輪進行扭矩傳遞的方案,并使用SolidWorks軟件對磁齒輪組進行建模,使用Maxwell軟件對磁齒輪組進行電磁學靜態(tài)仿真分析。并引入正交試驗的方法,設計了四因素三水平的正交試驗表,得到9組仿真試驗。通過仿真計算得到仿真結果。對結果進行了極差分析,驗證了仿真中各因素的顯著性。在得到的仿真結果中,綜合考慮成本和扭矩傳遞需求等方面,最終確定剩磁為:1.17T,磁極數(shù)為:8個,矯頑力為:876kA/m,間距為:0.6mm的磁齒輪組為最優(yōu)組合。對搬運工位的機械臂進行了有限元分析,校核在負載下的強度和變形表現(xiàn)。通過靜力學分析得到了機械臂的最大變形位移為6.718x10-5m,最大應力為27.887MPa。最大應力小于許用應力,所以機械臂能在負載下正常工作。隨后通過拓撲優(yōu)化的方法得到了結構去除材料的方案,實現(xiàn)了減輕結構自重40%的目的。最后對優(yōu)化后的結構進行模態(tài)分析,分析其穩(wěn)定性。通過對比其各模態(tài)的固有頻率與自激頻率得出結論,在運行過程中不會于驅動源發(fā)生共振。在檢測工位中對其滾珠絲杠的選型和同步帶系統(tǒng)工作參數(shù)穩(wěn)定性進行了分析計算,為設計選型提供了理論依據(jù),保證了同步帶的穩(wěn)定性,避免了發(fā)生爬齒等不良現(xiàn)象。
[Abstract]:The research and development of the liquid crystal panel edge bulge detection equipment is to select the semi-finished panel with large bulge and perfect the production process of the factory. The existing edge detection equipment is realized by means of machine vision principle or photoelectric sensor sweep mode respectively. The source of this project is the research and development project of cooperation between the practice base and BOE Corporation to design an automatic device which uses displacement sensor to realize the function of liquid crystal panel edge detection. The equipment is divided into three stations, namely, transmission station, transport station and inspection station. Because the device driving mechanism has a great influence on the stability of each station, this paper mainly analyzes the driving part of the three stations in order to provide theoretical support for the practical design work. This article has carried on the analysis and the research mainly from the following aspects. For the torque transmission mechanism of transmission station, a method of using magnetic gear instead of traditional mechanical gear for torque transfer is put forward. The magnetic gear set is modeled by SolidWorks software, and the magnetic gear set is simulated by Maxwell software. The orthogonal test table with four factors and three levels was designed by introducing the method of orthogonal experiment, and nine groups of simulation tests were obtained. The simulation results are obtained by simulation. The results are analyzed to verify the significance of each factor in the simulation. In the simulation results, considering the cost and torque transfer requirements, the final remanence magnetic is 1.17T, the number of magnetic poles is 8, the coercive force is 876kA / m, and the magnetic gear set with 0.6mm spacing is the optimal combination. Finite element analysis is carried out to check the strength and deformation of the manipulator under load. The maximum deformation displacement of the manipulator is 6.718x10x5m and the maximum stress is 27.887MPa by statics analysis. The maximum stress is less than the allowable stress, so the manipulator can work normally under load. Then the method of topology optimization is used to get the material removal scheme of the structure, and the goal of reducing the weight of the structure by 40% is realized. Finally, the modal analysis of the optimized structure is carried out, and the stability of the optimized structure is analyzed. By comparing the natural frequencies and self-excited frequencies of each mode, it is concluded that resonance will not occur in the driving source during operation. The selection of ball screw and the stability of working parameters of synchronous belt system are analyzed and calculated in the testing station, which provides the theoretical basis for design and selection, guarantees the stability of synchronous belt, and avoids the bad phenomena such as tooth creeping and so on.
【學位授予單位】：中北大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN873

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