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How to Operate CNC Lathe - Operating Steps of CNC Lathe Machine

  • Before machining CNC turning parts using the lathe machines, the workers should be familiar with the operation steps and order of the machines. Here are some specific operating steps below.

    Before turning on the main power switch of the machine tool, check whether the lubricating oil level of the automatic lubrication station is in the normal position. After power on, check whether the power supply is normal and whether there is a lack of power.

    The start-up of the CNC lathe is operated in the following order, while the shutdown is operated in the reverse order.
    - Turn on the main power switch on the side of the electrical cabinet, turn on the main power supply of the machine tool, the lamp is on, and the cooling fan of the electrical cabinet starts.
    - Press the "power start" key on the operation panel of the machine tool to turn on the power of the numerical control system, and the "spindle stop" key light is on. When turning off the machine, first press the "power judgment" key on the machine operation panel, and then turn off the main power supply on the side of the electrical cabinet.

    Manual operation of machine tool
    When the machine tool automatically processes the parts according to the processing program, the operation of the machine tool is basically automatic, while in other cases, it depends on the manual operation of the machine tool.

    Manual return to reference point operation
    When the power supply of the CNC system is connected, the operator must first return to the reference point. In addition, when the machine tool encounters an emergency stop signal or an over travel alarm signal during operation, it is necessary to return to the reference point of the machine tool when the machine tool is restored after troubleshooting. The specific operation method is as follows:
    Select the working mode of the machine tool as the mode of returning to the reference point;
    Select the fast (G00) moving speed to return to the reference point;
    Press and hold the positive x-axis or positive z-axis jog key, and the lathe slide will automatically and quickly move back to zero in the selected axis. When the lathe slide stops at the reference point, the zero return indicator light of the corresponding axis will be on.

    Manual feed operation
    When manually adjusting the machine tool, it is necessary to manually operate the carriage feed of the lathe. There are three operation methods;

    1. Manual continuous feed operation
    In this way, the tool can be inched or moved continuously to approach or leave the workpiece
    The working mode of the machine tool is selected as a manual feeding mode;
    Set the position of the "feed rate adjustment" knob and select the speed of manual continuous movement;
    Press the "feed rate" button of the lathe to move in the direction to be adjusted. When the "inching" button is released, the lathe slide stops moving continuously in the selected axial direction.

    2. Manual rapid feed operation
    When the machine tool is changed or operated manually, the tool is required to move quickly to approach or leave the workpiece. The operation method is as follows;
    The working mode of the machine tool is selected as a manual feeding mode;
    Select the speed of manual rapid movement;
    Press the "inching" key corresponding to the axis and direction to be moved, and press the "manual fast" key at the same time, the lathe slide will move rapidly in the selected axis at the selected speed. When the "inching" key is released, the lathe carriage stops moving rapidly.

    3. Feed operation
    When manually adjusting the tool or trial cutting, you can use the handwheel to determine the correct position of the tool. At this time, while turning the handwheel to fine-tune, you can observe the position or cutting condition of the tool. The operation method is as follows:
    The working mode of the machine tool is selected as a manual feeding mode;
    Press the x-axis feed or z-axis feed key, and the corresponding indicator light will be on;
    Select the moving speed of handwheel feed;
    Turn the carriage clockwise or anticlockwise, and the lathe slide moves in the positive or negative direction of the selected axis with the selected feed movement.