Multiple-spindle machine tool
    1.
    发明授权
    Multiple-spindle machine tool 失效
    多主轴机床

    公开(公告)号:US3798720A

    公开(公告)日:1974-03-26

    申请号:US21907172

    申请日:1972-01-19

    摘要: A multiple-spindle automatic machine tool wherein the frame supports a discrete cross slide and a discrete main tool slide for each rotary work spindle. The cross slides and the main tool slides are respectively movable radially and axially of the workpieces at the respective working stations by discrete hydraulic drives whose reciprocable piston rods or feed screws are separably coupled with the corresponding slides by split nuts having two sets of threads of similar inclination but different leads and respectively meshing with external threads of the piston rods or feed screws and the respective slides to allow for accurate adjustment of slides in response to rotation of the nuts.

    摘要翻译: 一种多主轴自动机床,其中框架支撑离散的十字滑块和用于每个旋转工作主轴的离散主工具滑块。 十字滑块和主工具滑块分别在相应的工作站处通过分立的液压驱动器在工件的径向和轴向上可移动,其往复活塞杆或进给螺杆通过具有两组相似的螺纹的分离螺母与相应的滑块分离地联接 倾斜但不同的引线,并分别与活塞杆或进给螺钉的外螺纹和相应的滑块啮合,以允许响应于螺母的旋转来精确地调整滑块。

    Bearing, centering and indexing means for the spindle carriers of multiple spindle machines
    2.
    发明授权
    Bearing, centering and indexing means for the spindle carriers of multiple spindle machines 失效
    用于多主轴机械主轴的轴承,中心和索引装置

    公开(公告)号:US3735460A

    公开(公告)日:1973-05-29

    申请号:US3735460D

    申请日:1972-02-16

    发明人: CRACHY R JACOBY H

    摘要: A multiple spindle machine wherein the front portion of the spindle carrier is rotatable in two axial antifriction bearings and a radial antifriction bearing. The front axial bearing is adjacent to an abutment of the machine frame and the rear axial bearing is separated from the front axial bearing by a flange of the spindle carrier. The radial bearing surrounds the spindle carrier behind the rear axial bearing and is surrounded by an axially compressible clamping ring which can be biased by one or more cylinder and piston assemblies to bear against the rear axial bearing and to thereby undergo radial expansion. The rear axial bearing causes the flange to press the front axial bearing against the abutment to thus maintain the front portion of the spindle carrier in a predetermined axial position. The radially expanding clamping ring bears against a cylindrical internal surfae of the frame and at least indirectly against the front portion of the spindle carrier so that the latter is accurately centered in the frame. A ring gear on the spindle carrier is engaged by a second gear which serves to rotate the spindle carrier between successive working positions. The ring gear can also be engaged by a gear segment which is movable radially of the spindle carrier by a cylinder and piston assembly and serves to lock the spindle carrier in an accurately determined position while the workpieces which are rotated by the work spindles in the carrier undergo treatment by one or more tools.

    摘要翻译: 一种多主轴机床,其中主轴承架的前部可在两个轴向减摩轴承和径向减摩轴承中旋转。 前轴向轴承与机架的邻接件相邻,后轴向轴承由主轴承座的凸缘与前轴向轴承分离。 径向轴承围绕后轴向轴承后的主轴托架,并且被可轴向压缩的夹紧环围绕,该夹紧环可被一个或多个气缸和活塞组件偏压以抵靠后轴向轴承并由此经受径向膨胀。 后轴向轴承使得凸缘将前轴向轴承压靠在邻接部上,从而将主轴托架的前部保持在预定的轴向位置。 径向扩张的夹紧环抵靠框架的圆柱形内表面,并且至少间接地抵靠主轴托架的前部,使得后者在框架中精确地居中。 主轴托架上的齿圈通过第二齿轮啮合,第二齿轮用于在相继的工作位置之间旋转主轴托架。 齿圈也可以由齿轮段接合,该齿轮段可通过气缸和活塞组件在主轴托架的径向上移动,并且用于将主轴托架锁定在精确确定的位置,同时由工作轴在工作台中旋转的工件 通过一种或多种工具进行治疗。