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  • SMK204
    CNC Internal Thread Grinding Center
    Feature and Parameter
    Configuration and Workpiece

    * The grinding machine is professional to processing in ball nut of  cylindrical surface, ending surface and  Internal thread race for once clamping.
    * The machine adopt THK ball screw and linear guideway , T type mineral casting frame to be better in vibrating and heat distortion .
    * The machine spindle drive by motor spindle, and follow by Heidenhain encoder.
    * Nuts raceway grinding wheel dress for two way:   1. Molding diamond grinding wheel ,2. dishing diamond grinding wheel, X and W axis Interpolating to dress, and suitable for different size ball and nut to grinding . Excircle grinding wheel dress by diamond pen dresser.
    * The machine can check nut circular hole , automatic ensure location of grinding internal thread ,and have grinding wheel dress measure compensation function and two-way grinding.
    * All the motor spindle adopt constant temperature coolant system to reduce heat distortion . the machine have device to check the pressure and flow in hydraulic pipe, it is better to protect motor spindle ,guideway and motor when fault.


    TECHNICAL PARAMETERS:

    Model SMK204
    Capacity
    Max.diameter of grinding excircle mm φ200
    Max.grinding length mm 150
    Diameter of grinding internal thread mm φ20-100
    Helix angle of internal thread
    25°
    Spindle
    Power/Speed of workpiece motor spindle KW/rpm 10.1/0~100
    Power/Speed of internal thread motor spindle KW/rpm 5.5/500~24000
    Power/Speed of external grinding motor spindle KW/rpm 5.5/50~3000
    Power/Speed of diamond roller spindle KW/rpm 1.5/50~10000
    Diameter of internal thread wheel mm 20~100
    Max.diameter of excircle grinding wheel mm 400
    Diameter of diamond grinding wheel mm 80
    Travel
    X/Z/W axis travel of wroktable mm 560/250/50
    X/Z/W axis torque of servo motor Nm 8/8/4
    X/W/Z axis positioning accuracy
      mm
      0.01
    X/W/Z axis repeatability positioning accuracy
      mm
      0.005
    Other
    Weight KG 6200
    Machine size mm 3100×2000×2400

    STANDARD CONFIGURATION:
    * Siemens828D control system and servo motor
    * External grinding motor spindle
    * Internal grinding motor spindle
    * Closed-loop control device
    * cooling oil device of motor spindle
    * Automatic mist collector-mist extractor system
    * Diamond grinding wheel dresser
    * Hydraulic 3-jaw  chuck
    * Automatic lubrication system
    * Cabinet air condition
    * Electronic hand-wheel
    * Cutting fluid filtration device


    OPTIONAL CONFIGURATION:

    * Simens810D control system
    * Hydraulic 4-jaw  chuck
    * PMI ball screw and linear guideway

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