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公开(公告)号:US4387635A
公开(公告)日:1983-06-14
申请号:US260729
申请日:1981-05-05
申请人: Kaj Abbestam , Goran Palmers
发明人: Kaj Abbestam , Goran Palmers
CPC分类号: B30B1/18 , Y10T83/8847
摘要: A machine tool comprising a portal stand having a number of, preferably four, screw pillars and a moveable yoke driven and guided along the screw pillars by means of nuts preferably roller nuts, in the yoke. Tools, machining devices or the like can be attached to the yoke. The nuts are driven simultaneously by a drive motor through a drive shaft extending therefrom. A very good parallel guiding of the yoke is achieved despite uneven loads. When the power demand is high, for example during heavy pressings, an auxiliary cylinder is provided, the piston rod of which is fixed to the yoke.
摘要翻译: 一种机床,包括具有多个,优选四个螺柱的门架,以及通过螺母优选地在所述轭中的螺母来驱动和引导的可移动轭。 工具,加工装置等可以附接到轭。 螺母由驱动马达同时驱动通过从其延伸的驱动轴。 即使负载不均匀,也可以实现非常好的平行导轨。 当电力需求高时,例如在大压力期间,提供辅助气缸,其活塞杆固定到轭。