How to maintain the CNC lathe, so that you can save over 10,000 equipment costs

Good maintenance can keep the machine tool processing accuracy in the best condition and increase the service life. Adopting the correct start-up adjustment method for CNC lathe can show an excellent working condition and improve the production efficiency and processing effect in front of new challenges.

Maintenance of CNC lathe shutdown

There are many kinds of CNC lathes, and various CNC lathes have different characteristics because of their roles, structures and systems. The content and standard of maintenance also have their own characteristics, so the actual rapid prototyping cnc maintenance system should be formulated and created according to the type, model and actual use condition of the machine tool, and with reference to the provisions of the machine tool manual. Here are some general maintenance points.

1、Machine tool cleaning: clean the workpiece, fixture and iron pin inside the machine tool, clean the iron pin inside the external chip conveyor; wipe the external sheet metal clean, electric control box air conditioner, oil cooler filter cleaning and tidy.

2, rust prevention: the operating table will be cleaned and wiped clean, wipe on the rust inhibitor; machine tool throughout the slow speed operation for an hour to wet the line rail; whether the cutting oil to change, priority treatment to get a good anti-rust, the machine tool must begin to work when adding cutting oil.

3, make a good workshop total power off, throat gas, liquid supply: the CNC lathe Y-axis operation to the middle, Z-axis back to zero, close to the machine tool total electric switch and transformer inlet switch, gas source, etc.

4, waterproof and moisture-proof: close the electrical box for good protection.

5, machine tool anti-rodent solution: machine tool as good anti-rodent solution to prevent rodents from chewing through the wire.

CNC lathe start adjustment

CNC lathe is a high technology content of electromechanical integration equipment, the use of the correct way to start the adjustment is very critical, which largely depends on whether the CNC lathe can play a normal economic benefits and its own life.

Check before starting: check the peripheral environment of the machine tool, whether there is any abnormal condition such as water in the electrical box and whether the oil is deteriorated.

Start gradually: Before starting, you must check the power supply voltage of the machine tool, make sure to open the power switch for about 10min after the voltage is stable, before opening the power switch of the machine tool, then open the other power switches in the electrical box, check whether the voltage is out of phase and too low, open the power supply of the machine tool under no abnormalities and observe any abnormalities and any air leakage. Start without alarm premise, do not perform any action, let the electrical components energized for 30min.

Slow moving: check for intervention, use the handwheel to move the machine throughout, and note any abnormalities, and then perform the starting point to rejoin the process.

Machine tool break-in: operate the machine tool automatically and slowly for a long time and rotate the spindle at low speed.

Frequently occurring faults of CNC lathe

Fan failure: The fan in the machine tool can play the role of heat exhaust and temperature reduction for the core equipment, effectively preventing the equipment from being damaged by overheating. At the end of the holidays, the machine tool fan always "strikes", which is caused by oil stains. When the machine is shut down, the fan inside the machine will also turn off. At this time, the machine tool oil will flow into the bearings of the fan, resulting in a short-circuit fault in the fan circuit, and then turn on the fan alarm or can not start. The longer the shutdown time, the greater the risk of this type of risk.

Seal failure: machine tool hydraulics and pneumatic equipment are essential to the use of seals, the purpose is to ensure that the device is sealed to maintain its normal pressure to provide. Seals are generally rubber and plastic products, prone to aging, especially during the holiday period, the machine does not start for a long time, the hydraulic pressure does not flow, which is more likely to cause seals cnc plastic prototype hardened, resulting in machine oil seepage, hydraulic devices to provide insufficient pressure and other problems.

Oil clogging: The reason for oil clogging is because the machine tool is shut down for a long time, the oil channel is constantly accumulating dirt. Oil blockage will cause the machine tool lubrication system failure, and lubrication system failure will give rise to many other serious problems. According to the survey, in a variety of common problems in machine tools, more than 40% are related to lubrication failure.

Machine tool limit switch failure: machine tool limit switch is an important device to limit the machine tool coordinate axis mechanical travel range, when the moving parts of the machinery pressed against the drive parts of the limit switch, its internal contact action, turn on, switch or open the control circuit, to achieve the control of the circuit provisions. Limit switch is generally equipped with internal torsion spring, long-term non-power on, will lead to torsion spring due to long-term force deformation, can no longer restore normal, torsion spring loss of effectiveness, the entire limit switch will also be stuck and ineffective.

Controller, power supply, motherboard and other circuit board failure: In CNC lathe, the role of circuit board needs no further explanation. The circuit board has a large number of capacitors, and if it is not energized for a long time, these capacitors will be aged and the volume will be reduced, resulting in the destruction of the machine circuit. In addition, the main reason for the failure of the circuit board also has a long time without the need to make the circuit board in the long-term bottom temperature situation, resulting in condensation of water, causing a short circuit when the machine is turned on.

Machine tool battery failure: general CNC systems are equipped with batteries, it should be noted that the battery referred to here is rapid cnc machining not the power supply for the entire device, but for some parts of the power supply device. For example, the system battery, which is used to store the system parameters; sure position encoder with battery, which is used to remember the zero position. Even when the power is not turned on, the power in these batteries will occur slowly outflowing. Long-term non-power on, easy to make the battery dead, resulting in the loss of machine content.