Spindle control system
    1.
    发明授权
    Spindle control system 失效
    主轴控制系统

    公开(公告)号:US4206392A

    公开(公告)日:1980-06-03

    申请号:US898696

    申请日:1978-04-21

    摘要: In a spindle control system in which a pulse coder is coupled with a spindle; a pulse train signal, derived from the pulse coder upon each rotation of the spindle through a predetermined rotational angle, is converted into an analog signal corresponding to the actual rotational speed of the spindle; and the analog signal is compared with a commanded speed signal to drive the spindle at the commanded speed. Upon application of a command for stopping the spindle at a predetermined position, a predetermined numerical value is set in an error register in accordance with a specified position signal from the pulse coder, the pulse train signal from the pulse coder is fed back to the error register, and the rotational position of the spindle is controlled with a signal corresponding to the content of the error register.

    摘要翻译: 在其中脉冲编码器与主轴联接的主轴控制系统中; 在主轴每转动预定旋转角度时从脉冲编码器导出的脉冲序列信号被转换为对应于主轴的实际转速的模拟信号; 并将模拟信号与指令速度信号进行比较,以指令速度驱动主轴。 在将主轴停止在预定位置的命令时,根据来自脉冲编码器的指定位置信号将预定数值设置在误差寄存器中,来自脉冲编码器的脉冲序列信号被反馈到误差 并且用对应于误差寄存器的内容的信号来控制主轴的旋转位置。

    Index table assembly
    3.
    发明授权
    Index table assembly 失效
    索引表组装

    公开(公告)号:US4333363A

    公开(公告)日:1982-06-08

    申请号:US160525

    申请日:1980-06-18

    IPC分类号: B23Q16/10 B23Q17/00

    摘要: An indexing table assembly adapted to be mounted on a machine tool or other industrial machine, comprising first and second screw elements coaxially engaged with each other and mounted for movement along their axes, mechanism for moving said first screw element along its axis, a turntable connected to said second screw element and movable therewith, mechanism preventing said second screw element from being moved beyond a predetermined range, said mechanism for moving said first screw element comprising a cylindrical piston directly connected to said first screw element, a circular fluid chamber in which said cylindrical piston is mounted for movement, said cylindrical piston separating said chamber into first and second chambers, a source of pressurized fluid, a control valve for controlling the flow of pressurized fluid into either said first chamber or said second chamber with the result that when the pressurized fluid flows into said second chamber the first screw element is moved positively in one direction, and then when the pressurized fluid flows into said first chamber said first screw element is moved positively in the other direction, a turntable operated control circuit for said control valve, and cam and valve mechanism for effecting a dampening action of the fluid in said first chamber during indexing operation of the assembly, said cam being connected to said second screw element.

    摘要翻译: 一种适于安装在机床或其他工业机器上的分度台组件,包括彼此同轴接合并安装成沿其轴线移动的第一和第二螺杆元件,用于沿其轴线移动所述第一螺钉元件的机构,连接的转盘 到所述第二螺丝元件并且与其一起移动的机构,其防止所述第二螺杆元件移动超过预定范围,所述用于移动所述第一螺纹元件的机构包括直接连接到所述第一螺杆元件的圆柱形活塞,其中所述 圆柱形活塞安装用于移动,所述圆柱形活塞将所述腔室分离成第一和第二腔室,加压流体源,用于控制加压流体流入所述第一腔室或所述第二腔室的控制阀,结果是当 加压流体流入所述第二室,第一螺杆元件移动p 然后当加压流体流入所述第一室时,所述第一螺杆元件在另一个方向上被正向移动,用于所述控制阀的转盘操作控制回路,以及用于实现所述控制阀的减振动作的凸轮和阀机构 流体在所述组件的分度操作期间在所述第一室中,所述凸轮连接到所述第二螺杆元件。

    Automatic tool changer of machining center
    4.
    发明授权
    Automatic tool changer of machining center 失效
    加工中心自动换刀

    公开(公告)号:US4355446A

    公开(公告)日:1982-10-26

    申请号:US81794

    申请日:1979-10-04

    摘要: A vertical-type machining center having a spindle carrier which travels in the vertical direction and a turret capable of both rotation and upward and downward movement provided on the spindle carrier, wherein tools are automatically changed over through rotation of the turret caused by relative movement between the turret and the spindle carrier when the upward movement of the turret is checked by a restraining member. A Z-axis position pulse generator is provided on a spindle mechanism drive member, such as the vertical drive motor or a screw shaft, and is adapted to generate a pulse for each revolution of the drive member. The pulses are counted by a counter which delivers a counted value for use in computing the vertical position of the spindle mechanism. The arrangement is such that the rotational speed of the vertical drive motor is controlled so as to move the spindle mechanism at an optimum speed suitable for the vertical position thereof.

    摘要翻译: 一种具有在垂直方向上行进的主轴托架的垂直型加工中心和设置在主轴托架上的能够同时旋转和向上和向下运动的转台,其中工具通过由于相对运动 通过限制构件检查转台的向上运动时的转塔和主轴托架。 Z轴位置脉冲发生器设置在诸如垂直驱动电机或螺杆轴的主轴机构驱动构件上,并且适于为驱动构件的每转产生脉冲。 脉冲由计数器计数,该计数器输出用于计算主轴机构的垂直位置的计数值。 该配置使得垂直驱动马达的旋转速度被控制成使主轴机构以适合其垂直位置的最佳速度移动。

    Machine tool
    5.
    发明授权
    Machine tool 失效
    机床

    公开(公告)号:US4196501A

    公开(公告)日:1980-04-08

    申请号:US899832

    申请日:1978-04-25

    IPC分类号: B23B31/26 B23Q3/155 B23Q3/157

    摘要: Disclosed is a machine tool which comprises a spindle head, and an automatic tool changing apparatus which comprises a tool release mechanism adapted to be operated by movement of the spindle head in the direction of axis of the spindle and a tool magazine supported in floating manner with respect to the direction of the axis of spindle. When the spindle head is axially moved away from the tool magazine with the tool in the spindle being held by the tool magazine, in order to remove the tool from the spindle the tool is released from engagement with the spindle by a release mechanism, and the tool magazine can be moved together with the spindle head until the tool has been released.

    摘要翻译: 公开了一种机床,其包括主轴头和自动换刀装置,其包括工具释放机构,其适于通过主轴头在主轴的轴线方向上的移动而操作,以及以浮动方式支撑的工具仓, 相对于主轴的轴方向。 当主轴头被轴向移动离开工具仓时,主轴中的工具由工具仓保持,为了从主轴上卸下刀具,刀具通过释放机构脱离与主轴接合,并且 刀库可以与主轴头一起移动,直到刀具被释放。

    Machine tool having drawbar mechanism
    6.
    发明授权
    Machine tool having drawbar mechanism 失效
    机床具有拉杆机构

    公开(公告)号:US4172683A

    公开(公告)日:1979-10-30

    申请号:US851767

    申请日:1977-11-15

    摘要: There is disclosed a machine tool, of the type having a tool magazine for receiving tools therein, and wherein a spindle head is moved in the direction of the axis of a spindle relative to the tool magazine such that one of the tools in the tool magazine is engaged with or disengaged from the spindle. A draw bar for firmly attaching a tool to the spindle is positioned inside of the spindle. The operation of the draw bar is actuated by the movement of the spindle head relative to the tool magazine.

    摘要翻译: 公开了一种具有用于在其中接收工具的工具仓的类型的机床,并且其中主轴头相对于工具仓在主轴的轴线方向上移动,使得工具箱中的一个工具 与主轴接合或脱离主轴。 用于将工具牢固地附接到主轴的拉杆定位在主轴的内部。 牵引杆的操作通过主轴头相对于工具仓的移动来启动。