1、 第I页 双动薄板冲压机液压系统设计 摘 要 随着航天、 汽车、 轮船等钣金件工业的不断进步， 市场对薄板质量的需求越来越高， 对薄板的冲压性能也越来越高， 不仅要求生产效率的提高， 生产质量更要求严格。 因此， 薄板冲压机对钣金件冲裁、拉伸、成形、弯曲、校正等加工工艺中起到非常重要，同时 也能起到提高生产效率和生产质量。 近年来，我国的工程机械取得了蓬勃的发展，其中， 液压传动技术起到了至关重 要的作用。而且，随着液压传动技术的快速发展和广泛应用，它已成为下业机械、下程 建筑机械等行业小可缺少的重要技术。然而，尽管液压技术在机械能与压力能的转换已 取得很大进展，但它在能量损失和传动效率上仍然
2、存在着问题。因为，在液压系统中， 随着油液的流动，有相当多的液体能量损失掉，这种能量损失不仅体现在油液流动过程 中的内摩擦损失上，还反映在系统的容积损失上，使系统能量利用率降低，传动效率无 法提高。高能耗和低效率又使油液发热增加，使性能达不到理想的状况，给液压技术的 进一步发展带来障。因此，探索和研究高效液压传动技术，提高其综合性能就成为了液 压技术领域研究的重点之一。 关键词：钣金件；工程机械 ；损失；高效 第II页 Double action thin steel plate punch press hydraulic system design Abstract Along with s
3、heet metal industrys and so on astronautics, automobile, steamboat unceasing progresses, the market is getting higher and higher to the thin steel plate qualitys demand, is also getting higher and higher to the thin steel plate ramming performance, not only the request production efficiencys enhance
4、ment, the production quality requests strictly. Therefore, the thin steel plate punch press to the sheet metal blanking, the stretch, the forming, curving, processing crafts and so on adjustment gets up is important, simultaneously can also have the enhancement production efficiency and the producti
5、on quality. the recent years, our countrys engineering machinery has made the vigorous progress, the hydraulic transmission technology played the role which wanted very important. Moreover, along with the hydraulic transmission technologys fast development and the widespread application, it has beco
6、me the important technology which industry the machinery, professions and so on farewell gift of food construction machinery small may lack. However, although the hydraulic technique has made the very big progress in the mechanical energy and the pressure energy transformation, but it still has the problem in the energy loss and the transmission efficiency. Because, in the hydraulic system, along with the fat liquor flowing, has the quite many liquid energy loss, this kind of energy
