【摘要】：精密玻璃切割機(jī)是當(dāng)代液晶顯示制造行業(yè)不可或缺的生產(chǎn)設(shè)備之一，它的切割精度直接影響著產(chǎn)品的最終質(zhì)量。本論文以某型玻璃切割機(jī)為研究對(duì)象，對(duì)其部分機(jī)械結(jié)構(gòu)及其切割工藝進(jìn)行了研究。 基于有限元分析技術(shù)和實(shí)際生產(chǎn)工藝分析相結(jié)合的方法，，通過(guò)大量試驗(yàn)實(shí)現(xiàn)了機(jī)械結(jié)構(gòu)與切割工藝參數(shù)之間的合理匹配，并對(duì)切割機(jī)在大批量生產(chǎn)過(guò)程中如何提高產(chǎn)品合格率和切割機(jī)的穩(wěn)定性方面進(jìn)行了一些有益的研究和嘗試。 基于實(shí)際需求對(duì)所設(shè)計(jì)的切割機(jī)主要傳動(dòng)機(jī)構(gòu)的運(yùn)動(dòng)機(jī)理進(jìn)行了分析，確定了滾珠絲杠的傳動(dòng)形式，并對(duì)滾珠絲杠副進(jìn)行了剛度計(jì)算與選型，分析了大型滾珠絲杠在選型過(guò)程中需要重點(diǎn)考慮的影響因素。 建立了工作臺(tái)結(jié)構(gòu)模型，對(duì)工作臺(tái)支撐桿數(shù)量及支撐位置進(jìn)行了優(yōu)化設(shè)計(jì)，通過(guò)有限元優(yōu)化計(jì)算的方法將工作臺(tái)支撐桿從48根減少到36根，通過(guò)對(duì)改進(jìn)結(jié)構(gòu)的試驗(yàn)調(diào)試、測(cè)量檢驗(yàn)，證明了方案的可行性。 利用裝配完成的設(shè)備構(gòu)建實(shí)驗(yàn)平臺(tái)，從切割參數(shù)到切割工藝流程進(jìn)行改進(jìn)設(shè)計(jì)，對(duì)特定玻璃型號(hào)所需要的切割參數(shù)進(jìn)行了驗(yàn)證，獲得了合理有效的切割參數(shù)選用方法。針對(duì)切割玻璃流程，提出了對(duì)角抓取的改進(jìn)方法，實(shí)驗(yàn)證明了改進(jìn)方案的可靠性與穩(wěn)定性，提高了切割效率與生產(chǎn)的良品率。
[Abstract]:The precision glass cutting machine is one of the indispensable production equipments in the liquid crystal display manufacturing industry. Its cutting precision directly affects the final quality of the product. In this paper, some mechanical structure and cutting technology of a glass cutting machine are studied. Based on the combination of finite element analysis technology and practical production process analysis, the reasonable matching between mechanical structure and cutting process parameters is realized through a large number of experiments. Some beneficial researches and attempts are made on how to improve the qualified rate of products and the stability of cutting machines in mass production. Based on the actual demand, the motion mechanism of the main transmission mechanism of the cutting machine is analyzed, the transmission form of the ball screw is determined, and the stiffness of the ball screw pair is calculated and selected. The factors that need to be considered in the selection of large ball screw are analyzed. The structure model of the worktable is established, and the number and position of the supporting rod of the worktable are optimized. By the method of finite element optimization calculation, the support rod of the worktable is reduced from 48 to 36, and the improved structure is tested and debugged. The feasibility of the scheme is proved by measuring and checking. The experimental platform was constructed by using the equipment completed by assembly, and the cutting parameters were improved and designed from cutting parameters to cutting process. The cutting parameters needed for specific glass models were verified, and a reasonable and effective method for selecting cutting parameters was obtained. In view of the glass cutting process, an improved method of diagonal grabbing is put forward. The reliability and stability of the improved scheme are proved by experiments, and the cutting efficiency and the yield of good products are improved.
【學(xué)位授予單位】：中北大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類(lèi)號(hào)】：TQ171.683

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