锻压技术

压力机滑块结构及螺杆中心距研究

英文标题：Study on slider structure and center distance of screw of press

作者：闵鹏闵建成张伟

分类号：TG355.5

出版年,卷(期):页码：2014,39(8):76-80

摘要：

对国内外压力机滑块结构及滑块螺杆中心距与滑块左右尺寸的比值系数进行了研究。研究表明，压力机滑块结构不同，则压力机滑块螺杆中心距与滑块左右尺寸比值系数不同；压力机能承受偏心载荷不同，则滑块刚度也不同；加大压力机滑块螺杆中心距，能提高压力机承受偏心载荷能力，却降低了压力机滑块刚度，可通过增加滑块底板厚度来弥补刚度不足；合理的滑块结构和滑块螺杆中心距，不但可以承受大的偏心载荷，而且可提高压力机精度，大大减少压力机故障及停机时间。压力机滑块结构和压力机滑块螺杆中心距对闭式双点、四点压力机和级进模压力机、多工位压力机及压力机自动生产线、压力机精度具有重要作用。

The structure and ratio of screw center distance to L-R length of slider for press in domestic and international companies were researched. The results show that the structure of slider for press is different, so is the ratio of screw center distance to L-R length of slider for press. The non-axial load which press can support is different, so is the stiffness of slider. That increasing screw center distance of slider for press can improve the supporting capacity of non-axial load, but it leads to the reducing of stiffness of slider for press, which can be resolved by the thickness increasing of bottom plate of slider. Reasonable structure and screw center distance of slider not only can support heavier non-axial load, but also leads to higher precision for press, so the trouble and stop time of press are shortened. There is a significant effect of structure and screw center distance of slider for press on straight side double points and four points presses, progressive die press, multi-position press and automatic production line and precision of press.

基金项目：

国家重点新产品计划立项项目（ 2011TJ315001）

闵鹏（1985-），男，硕士研究生，助理工程师；闵建成（1957-），男，学士，教授级高工

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