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在阴极铜板包装生产线单垛配重中, 针对单片阴极铜板重量误差较大的特点,为满足包装配重的要求提出了增加一片或减少一片铜板的配重原理.根据此原理设计出利用气动驱动真空吸盘抓取单片铜板的机械运动系统来完成单垛铜板的配重.控制系统采用 PLC 控制真空吸盘及水平、垂直气缸运动完成铜板配重,此配重系统可将配重信息传送给上位机,以便其对配重过程进行监控.增加一片或减少一片铜板的配重机械系统和控制系统自动化程度高,安全可靠,运行稳定,能很好的完成铜板自动包装生产线上单垛铜板的自动配重. 相似文献
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根据阴极铜板包装工艺流程的要求,研发设计了集机械、液压、气动、电气和计算机控制系统于一体的大型自动化阴极铜板自动包装机组,并阐述了其结构、工作原理及运用效果。本设计思路对类似生产工艺要求的生产线设计,具有一定的参考意义。 相似文献
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张玲峻 《机电产品开发与创新》2012,25(4):84-85,49
根据某企业生产需要十二个工位自动分装设备的要求,应用槽轮机构、凸轮机构的工作原理和结构特点,设计出满足生产要求的分度、定位组合机构。 相似文献
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探讨一种具有柔性配重的曲柄滑块机构。根据质心不变原理及振动理论中的相位差原理,附加柔性配重使滑块的一阶惯性力的绝大部分及二阶惯性力的一部分得到平衡。与现有的为消除惯性力而设计的机构相比,这种机构的体积小、质量轻,消振效果较好。 相似文献
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《机械传动》2016,(7):71-75
以实现工位台自动翻转与复位功能为目标,提出了一种由圆柱凸轮驱动的多工位回转式自动翻转与复位机构。每个工位均由曲柄滑块机构组成,通过凸轮曲线的变化控制滑块的位移变化,从而驱动曲柄旋转,完成工位台的翻转与复位动作。建立了自动翻转与复位机构的数学模型,通过改变机构的设计参数可以满足不同的工程实际要求。以预制硬质卷烟条盒的自动清空为例,研究了满足清空要求的多工位回转式自动翻转与复位机构的参数设计。以凸轮升程最小、翻转角度最大和竖直方向高度最小为多目标函数,以曲柄、连杆、凸轮升程等相关参数为自变量,进行了自动翻转与复位机构的优化计算,优化效果明显,并通过仿真分析验证了机构参数设计的合理性。 相似文献
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为了评估银盘水电站推力轴承支撑性能对机组运行的稳定性以及验证镜板泵外循环技术在设计工况下的冷却效果,通过对不同结构特点推力轴承支撑性能进行分析,阐述了银盘水电站推力轴承弹性油箱支撑结构在轴流转桨式水轮发电机组中自动调整各轴瓦受力平衡的优点;同时,利用流体力学计算公式,对银盘水电站镜板泵外循环系统工作压头和流量进行了计算分析,结合现场机组运行工况进行了试验验证。研究结果表明:采用弹性油箱支撑结构的推力轴承,能使推力轴承轴瓦间受力不均匀的问题得到根本改善,大大提高了机组运行的稳定性;通过计算分析,结合机组运行监测数据,得出了银盘水电站镜板泵实际压头系数和流量系数,证明镜板泵外循环系统能够在设计工况点附近工作,从检测数据来看系统冷却效果较好。 相似文献
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E.S.W. Leung W.K.C. Yung W.B. Lee 《The International Journal of Advanced Manufacturing Technology》2004,24(7-8):474-484
The laser-assisted seeding (LAS) mechanism has the potential to replace the conventional electroless copper plating in printed circuit board (PCB) manufacture because it combines the steps of drilling and electroless plating into one. The LAS mechanism should be able to plate microvias with high aspect ratio that may not be feasible by conventional electroless plating due to the small via geometry. The conventional electroless plating process generates considerable quantities of chemical waste. In particular, the plating of microvia with high aspect ratio close to 1 is difficult due to the limited accessibility of chemical solution to the via internal wall surface in conventional plating technology. LAS is a promising alternative. The objectives of this paper are to report the deposition mechanism of a thin copper film layer (laser-assisted seeding) on PCB microvias dielectric and to study the thermal reliability of the microvias produced by this mechanism. Results find that the microvias produced by LAS are thermally and electrically as reliable as conventional electroless plating technology. This revised version was published online in October 2004 with a correction to the issue number. 相似文献
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In the design of conveyor transfer stations for handling hard-rock mining products wear is one of the major factors that must be addressed. In a general discussion on the design of transfer stations for functionality, ease of maintenance and maximum life, the use and performance of impact plates are discussed. The necessity of keeping a small angle of impact between the ore stream and the plate is highlighted. Limited results from trials on the performance and wear resistance of hard-faced curved impact plates at a copper mine are presented. The mine is handling ore at rates in excess of 40 000 tonnes per day and had suffered from excessive transfer station wear and poor conveyor performance due to problems within the transfers. These problems had been exacerbated with the ore ranging over a wide range of moisture content to saturation and possible clay content to 15%. 相似文献
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由正交异性板的响应识别移动荷载 总被引:4,自引:1,他引:3
建立移动荷载引起的正交异性板动力响应的计算公式,当移动荷载为常荷载时,板的响应可精确解得。在此分析基础上导出板上多个移动荷载与板的多点响应或单点多时刻响应的关系,由最小的二乘法识别移动荷载。通过算例讨论了响应的测试误差对识别结果的影响。 相似文献