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    • 56. 发明授权
    • Anti-whip device for drive screws of machine tools
    • 机床驱动螺丝的反鞭装置
    • US06371704B1
    • 2002-04-16
    • US09629508
    • 2000-08-01
    • Michael P. Hardesty
    • Michael P. Hardesty
    • B23Q540
    • B23Q5/404Y10T74/1868Y10T408/91Y10T409/304312Y10T409/309576Y10T409/309744
    • In a machine tool having a base member, a member moveable relative to the base member, an elongated drive screw supported on the base member and an operative connection between the moveable member and the drive screw whereby upon driving the drive screw the moveable member will be caused to be displaced relative to the base member, an anti-whip device generally consisting of a drive screw support member pivotally supported on the base member, having angularly spaced arm sections alternatively disposable in a line of travel of the operative connection and engageable with the elongated drive screw in supporting relation at points intermediate the ends thereof, each of the arm sections being engageable by a component of the moveable member as it traverses in a selected direction to cause the arm section to pivot out of its drive screw support engagement, ahead of the operative connection, and simultaneously cause the other of the arm sections to pivot into its drive screw support engagement, behind the passage of the operative connection, and means for yieldingly biasing each of the arm sections into engagement with the drive screw when the arm section is in its drive screw engaging position.
    • 在具有基座构件的机床中,可相对于基座构件移动的构件,支撑在基座构件上的细长驱动螺杆以及可移动构件与驱动螺杆之间的可操作连接,由此在驱动驱动螺杆时,可移动构件将 导致相对于基座构件移位的反鞭装置,通常由枢转地支撑在基座构件上的驱动螺杆支撑构件组成的具有角度间隔开的臂部分的交替装置,该臂部分可交替地一次性地在操作连接的行程中一次性并且可与 细长的驱动螺杆在其端部之间的点处具有支撑关系,当每个臂部分沿着选定的方向横移时可由可移动部件的部件接合,以使臂部分从其驱动螺钉支撑接合部枢转出来 并且同时使另一个臂部分枢转到其驱动螺钉支撑接合部中 nt,在操作连接的通过之后,以及当臂部处于其驱动螺杆接合位置时,用于屈曲地偏置每个臂部分与驱动螺钉接合的装置。
    • 58. 发明授权
    • Metal working machine
    • 金属加工机
    • US5482416A
    • 1996-01-09
    • US268500
    • 1994-06-30
    • Steve Reko
    • Steve Reko
    • B23Q5/40B23Q11/00F16H27/02
    • B23Q5/404B23Q11/001Y10T409/309744Y10T74/18648Y10T82/2549
    • A vertical milling or boring machine has a tool head supporting column which rides on base mounted rails. A ball, screw extends along the base under the column. Each column has a motor driving a nut carried by the ball screw. The nut is caged by the column so that rotation of the nut moves the column along the rails. To prevent ball screw droop, a slidable block is provided on either side of the column which operate as follows. The column pulls one of the these supports along until it latches to a post proximate the middle of the ball screw whereupon this latch overcomes the connection between the column and the slidable support leaving the slidable support latched to the post. When coming back the other way, the column pulls the other slidable support. The column pushes the first support off the post and latches to the first support when the column encounters the first support and leaves the other slidable support latched to the post once the column passes the post. A counterbalance for the tool head comprises three shafts arranged in a triangular configuration, a pulley support mounted for sliding along the shafts, a link from the tool head around the pulley of the pulley support, and an hydraulic cylinder bearing against the pulley support for applying the force to it in order to counterbalance the weight of the tool head.
    • 立式铣床或镗床具有骑在基座安装导轨上的工具头支撑柱。 一个球,螺丝沿底部的底部延伸。 每列具有驱动由滚珠丝杠承载的螺母的马达。 螺母被柱子笼蔽,使得螺母的旋转沿着轨道移动柱。 为了防止滚珠丝杠下垂,在柱的任一侧设置可滑动的块,其操作如下。 该列将这些支撑件中的一个拉到一起,直到其锁定到靠近滚珠丝杠中间的柱子,然后该闩锁克服了柱和可滑动支撑件之间的连接,从而将可滑动的支撑件锁定到柱上。 当以另一种方式回来时,列拉出另一个可滑动的支撑。 当列遇到第一个支撑时,柱将第一个支撑件推离柱子并锁定到第一个支撑件,一旦列通过柱子,该列将另一个可滑动的支架锁定到柱上。 工具头的平衡装置包括三角形构造的三个轴,安装成沿着轴滑动的皮带轮支撑件,围绕皮带轮支撑件的滑轮的工具头的连杆以及抵靠皮带轮支撑件的液压缸轴承 为了平衡工具头的重量,它的力量。