Chapter 5 - Operation

All about using and operating the machine.

The information about how to operate this machine is given below. Please read
carefully before starting to operate this machine.

5.1 Before start-up

5.2 Machine Power-On

5.3 Spindle warm-up

5.4 Preparation

5.5 Operation

5.6 Finish

 

5.1 Before start-up

5.1.1. Safety equipment

  • Fully-enclosed guard.
  • Emergency stop push button.
  • NC programming codes written to limit the traveling distance.
  • Interlock relationships specified by the NC software codes to prevent wrong operation of
    this machine.

5.1.2 Inspection before turning on the power

  • Ensure there is no loose wiring or loose connections.
  • Ensure the electrical cabinet, doors of the CNC controller and other safety guarding
    doors are closed.
  • Ensure all the machine parts are secured and fixed properly.
  • Ensure all the oil levels are normal.

5.1.3 Warnings

  • Ensure you know how to use this machine before starting it.
  • Always wear the correct personal protection equipment (PPE), such as safety goggles,
    oil-proof safety shoes, safety uniform, etc. before starting the machine.
  • Ensure all of the doors and guards of the machine, the operating panel and the main
    power supply panel are closed before starting up the machine.

5.1.4 Notices

  • Ensure that the incoming power supply is sufficient to run all of the units of this
    machine before starting up the machine.
  • All of the cables should be protected from contact with chips, which might result in an
    electrical short circuit.
  • Always clean and lubricate all of the sliding surfaces before starting up the machine if
    the machine is just unpacked or has not been used for a long time. Run the lubrication
    system for a while until all of the sliding parts are lubricated adequately before starting
    to use the machine.
  • Always use the proper type of lubrication oil as indicated in the nameplate or the
    manual.
  • Check all of the switches, push buttons and operating levers to make sure they can be
    operated smoothly.
  • Check the oil level of the oil tank regularly. Fill it up if necessary.
  • Check the coolant level of the cutting fluid tank regularly. Fill it up if necessary.

 

5.2 Machine Power-On

5.2.1 Normal switch on procedure

  • Connect the mains power supply.
  • Turn on the main power supply isolating switch.
  • Once the control system has powered up release any emergency stop pushbuttons and
    press the “RESET” pushbutton on the operators machine control panel.
  • If the main door is closed there will be a message to open/close it as part of the Safety
    test procedure. Please open and close main door and theSafety test procedure will test
    the emergency stop circuit by creating an emergency stop condition.
  • While the Safety test is running the Safety test button and the 3 stage warning lights will
    flash.
  • Once the Safety test procedure is finished the machine is ready for operation.


5.2.2 Emergency stop procedure

Should any condition occur which requires an emergency stop, press one of the red
emergency stop push buttons on the main machine control panel or the handwheel. Twist or
pull upwards to release the emergency stop.


5.2.3 Normal switch off procedure

  • Press one of the red emergency stop push buttons.
  • Turn off the main power isolating switch.


 

5.3 Spindle warm-up

If your machine’s spindle has been idle for more than (4) days, run the spindle warm-up
program before you use the machine. It is better to use a warm-up procedure, as thermal expansion of castings may cause damage to contact surfaces of moving parts, and result in oil leakage and loss of precision.


This program brings the spindle up to speed slowly to distribute the lubrication and let the spindle reach a stable temperature.

5.3.1 Warm up notes

  • Ensure axes have been returned to the reference position before warming up the
    machine in automatic mode. Ensure the correct warm-up program is selected and that
    the machine is able to travel the required distance without collision with spindle, tooling,
    workpiece, etc.
  • Ensure that the warm-up procedure lasts for 20 minutes with an appropriate spindle
    speed and feed rate (500 mm/min). (follow below spindle warm-up procedures)

spindle-warm-up

 

5.4 Preparation

Please follow the steps below to prepare for the machining process:

  • Select the proper method of machining, jig mounting and fixture equipment.
  • Plan the machining sequence.
  • Select the appropriate tools and tool sequence.
  • Select proper cutting conditions. Ensure that those conditions meet the specification of
    the machine.

5.4.1 Warnings

  • Always use recommended cutting tools. Failure to do so could result in damage to
    component/machine.
  • Do not use broken or defective cutting tools.
  • Ensure that the working area has sufficient lighting.
  • Keep the machine and working area clean and tidy. Tools and equipment should be
    kept in the appropriate area.
  • Do not obstruct working surfaces, including guideways, safety guards etc.

5.4.2 Notices

  • Check the oil level of the oil tank regularly. 
  • Only use recommended cutting tools.
  • Always try a light test cut before using a heavy cut.


5.5 Operation

 

 

5.6 Finish

  • Press the Emergency Stop push button on the machine control panel.
  • Turn off the main power supply isolating switch located on the electrical cabinet.


5.6.1 Inspection after finish

  • Ensure all the machine parts are in good conditions.
  • Check the centralized lubrication system. Top up or refill the oil if necessary.
  • Ensure there no leakage has occurred from the pipe lines.
  • Ensure all screws are properly secured.
  • Ensure all the gauges and indication meters are in normal condition.
  • Keep the machine and working area clean and orderly.

5.6.2 Notices

  • Ensure that the power supply is switched off and place “Under Maintenance. Do not
    turn on the power supply” warning signs in visible areas before cleaning the machine
    or accessories. Ensure that the machine is fully stopped before maintaining the
    machine.
  • Ensure the machine and its surroundings are cleaned and put everything in order after
    the machining job is finished. Ensure to put anti-rust oil on the machine bed and all of
    the moving parts to keep them free from rust and dirt.
  • Check and replace any broken wipers.
  • Check and replace lubricant or hydraulic oil if they are contaminated or emulsified.
  • Check and replace the coolant if it is contaminated.
  • Check and refill the lubricant, hydraulic oil and coolant if necessary.
  • Clean the filters of the lubrication, hydraulic, and cutting coolant systems.
  • Turn off all of the main power circuit breakers when leaving the machine unattended.