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玻璃切割机的结构改进及生产工艺研究.pdf

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玻璃切割机的结构改进及生产工艺研究.pdf

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文档介绍:中北大学学位论文玻璃切割机的结构改进及生产工艺研究摘要精密玻璃切割机是当代液晶显示制造行业不可或缺的生产设备之一,它的切割精度直接影响着产品的最终质量。本论文以某型玻璃切割机为研究对象,对其部分机械结构及其切割工艺进行了研究。基于有限元分析技术和实际生产工艺分析相结合的方法,通过大量试验实现了机械结构与切割工艺参数之间的合理匹配,并对切割机在大批量生产过程中如何提高产品合格率和切割机的稳定性方面进行了一些有益的研究和尝试。基于实际需求对所设计的切割机主要传动机构的运动机理进行了分析,确定了滚珠丝杠的传动形式,并对滚珠丝杠副进行了刚度计算与选型,分析了大型滚珠丝杠在选型过程中需要重点考虑的影响因素。建立了工作台结构模型,对工作台支撑杆数量及支撑位置进行了优化设计,通过有限元优化计算的方法将工作台支撑杆从48根减少到36根,通过对改进结构的试验调试、测量检验,证明了方案的可行性。利用装配完成的设备构建实验平台,从切割参数到切割工艺流程进行改进设计,对特定玻璃型号所需要的切割参数进行了验证,获得了合理有效的切割参数选用方法。针对切割玻璃流程,提出了对角抓取的改进方法,实验证明了改进方案的可靠性与稳定性, 提高了切割效率与生产的良品率。关键词:玻璃切割机,滚珠丝杠副,有限元分析,切割参数,切割工艺流程中北大学学位论文 Structure Improved Design and Production Processes Research of aGlass Cutting Machine abstract Precision glass cutting machine isconsidered to one of the most indispensable manufacturing equipment indigital screen producing cutting precision directly affects the quality ofproduction。This dissertation anlyzied the structure and cutting technology design andexperiment of one glasscutting machine. Based on finite—element analysis and cutting experiment optimal ng parameters between structure andcutting technology were obtained. Research on how toimprove qualification rate and stability ofproducts Inlarge scale production were carried out. Applying ballscrew drive, movement mechanism ofmain transmission designed was analyzed based on the actualdemand Stiffness puted andcheckedand thetype was selected ofthe main transmissionparts ball screw factors were discussed during theselectionprocess oflarge ballscrew pairs The structure model of aworkbench was established number ofsupport rods Was reduced from forty-eight tothirty-sixthrough finiteoptimization experiment andmeasurement,the possibility ofimproved structure andmethod were proved Using theimproved and assembled equipment astheexperiment platform,a seriesof tests were performed such aschanging cuttingparameters,adapting differentproduction processes etc,Optimal cutting parameters corresponding to specific ty