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    • 5. 发明授权
    • Pulley splitting machine
    • 皮带轮分裂机
    • US4078410A
    • 1978-03-14
    • US679260
    • 1976-04-22
    • Anthony Lemmo
    • Anthony Lemmo
    • B21H1/04B21D22/16
    • B21H1/04Y10T29/49458
    • An apparatus for manufacturing split pulleys includes a frame and a spindle assembly supported by the frame and having an upper and lower spindle for supporting for rotation a blank to be split therebetween. The lower spindle includes a clamping mechanism having a screw means for drawing the upper spindle toward the lower spindle and the lower spindle toward the upper spindle to clamp the blank to be split therebetween. Bearing means are disposed between the frame and the spindle assembly for supporting the spindle assembly for rotation. The clamping means are operative to exert a clamping force between the upper and lower spindles which is isolated from the frame and the bearing means to clamp a blank therebetween. A pair of rotatable tools are provided each of which has an axis of rotation parallel to the axis of rotation of the spindle assembly and each of which is associated with a motor means to effect rotation of the tools. The tools are operable to move relative to the blank supported by the spindle assembly to effect sequential engagement between the tools and the peripheral edge of the blank to sequentially split and form the blank. Control means is provided for controlling the speed of the spindle to match the peripheral speed of the rotating blank supported by the spindle with the peripheral speed of the tool with which it is desired to engage the blank. The control means senses the speed of the first tool to be engaged with the rotating blank and controls the speed of the spindle in response to the speed of the first tool and subsequently senses the speed of the second tool to be engaged with the blank and controls the speed of the spindle in response to the speed of the second tool. The speed control of the peripheral speed of the tools and the rotating blank prevents skidding of the tools upon initial engagement of the blank with the tools.
    • 用于制造分体皮带轮的装置包括框架和由所述框架支撑的心轴组件,并且具有用于支撑待转动的坯件的上和下心轴。 下主轴包括夹紧机构,该夹紧机构具有用于将上主轴朝向下主轴和下主轴朝向上主轴拉出的夹紧机构,以夹紧待分裂的坯料。 轴承装置设置在框架和主轴组件之间,用于支撑主轴组件以进行旋转。 夹紧装置可操作以在与框架和轴承装置隔离的上和下主轴之间施加夹紧力,以在其间夹紧坯料。 提供了一对可旋转工具,每个可旋转工具具有平行于主轴组件的旋转轴线的旋转轴线,并且每个旋转工具与电动机装置相关联以实现工具的旋转。 工具可操作以相对于由主轴组件支撑的坯件移动,以实现工具与坯件的周边边缘之间的顺序接合,以顺序地分离和形成坯料。 提供控制装置用于控制主轴的速度以使由主轴支撑的旋转坯料的圆周速度与期望与坯料接合的工具的圆周速度相匹配。 控制装置感测第一工具与旋转坯件接合的速度,并响应于第一工具的速度控制主轴的速度,随后感测到第二工具与坯件和控制件啮合的速度 主轴响应于第二工具的速度的速度。 刀具和旋转毛坯的圆周速度的速度控制可以防止在坯料与工具初始啮合时刀具的打滑。