CNC Knowledge: Things should be noted when the tooltip is closed for a long time

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Doing a good maintenance work can maintain the optimal machining accuracy of the tool machine, prolong the lifespan, adopt correct starting and debugging methods for CNC machine tools, and faced with new challenges, it can show a good working condition and improve production efficiency and treatment results.

1

Maintenance of the CNC machine stop

There are many types of CNC tools, and each type of CNC machine has different characteristics due to its different functions, structures and systems. The content and rules of maintenance also have their own characteristics. You will find below some common maintenance points.

1. Machine cleaning: Clean the parts, accessories, iron swallows, etc. In the tooltip, clean the iron ties in the discharge machine of the external chip; and the oil cooler filter.

2. Anti -ist treatment: clean the work work and wipe it with anti -ist oil; The anti-rusting treatment, then add it when the tooltip must operate.

3. Do a good job in the total power failure of the workshop, the air failure and the liquid power supply: run the Y axis of the CNC machine in the middle, return to zero in the Z axis and turn off The main power switch for the power machine power switch, the transformer input switch, gas source, etc.

4. Waterproof and moisture test: Close the electric box and protect it.

5. Anti-IT Machine Tool: The machine tool also does a good work of anti-drat treatment to prevent the mouse from biting the wire.

2

Start and debugging CNC machine tools

CNC machine tools are a mecatronic equipment with high technical content.

1. Check before starting: check the peripheral environment of the tool-machine, that there are abnormal phenomena such as the water input in the electric box and if the oil is deteriorated.

2. Light up light: before starting the machine, you must check the supply voltage of the tooltip. stable. . When there is no alarm on the power supply, do no action and let the electrical components are set up for 30 minutes.

3. slow movement: check if there is an interference, use the steering wheel to move the tool-tool throughout the process and be careful whether there are anomalies, then perform the decrease in origin.

4. Machine Tool Running-in: Run the tool-tool automatically and slowly for a long time and rotate the spindle at low speed.

3

Frequent failures of CNC machines

1. Fan failure: The machine-tool fan can dissipate and cool the basic equipment, effectively avoiding overheating and damage to the equipment. At the end of the long vacation, the machine of the machine “often strikes”, caused by pollution by oils. When the tooltip is stopped, the fan inside the tool-tool also stops. Currently, the oil-tool oil spots take place in the fan bearings, causing the failure of the short-circuit fan circuit, and the alarm fan or cannot start when the machine is activated. The longer the downtime, the greater the risk.

2. Tightness failure: The seals are essential for the hydraulic and pneumatic devices of machine tools, in order to ensure the sealing of the device and to maintain its normal diet. The seals are generally rubber products and are subject to aging, especially during long vacation, when the tool-tool does not start for a long time and the hydraulic pressure does not flow, which facilitates the tightening of the joint, drives an oil leak from the tooltip and the insufficient pressure supplied by the hydraulic device.

3. Blocking the oil circuit: The reason for blocking the oil circuit is caused by stopping the tool-tool for a long time and the continuous deposit of internal organs in the oil circuit. A blocking of the oil circuit will lead to the failure of the machine-tool lubrication system, and a failure of the lubrication system will cause many other serious problems. According to statistics, among the different current machine tools, more than 40% are linked to lubrication failures.

4. The machine’s draft switch fails: the machine line switch is an important device that defines the mechanical line range of the machine’s coordinates. Light, change or disconnect control. There are generally springs inside the race switch. And the entire race switch will also be stuck and failed.

5. failures of the printed circuit card such as pilots, power supplies, motherboards, etc.: In CNC machines, it is not necessary to say much about the function of the printed circuit card. The printed circuit card has a large number of capacitors. In addition, the main reason for the failure of the printed circuit card is that it will not need to leave the circuit card printed at the lower temperature for a long period, which leads to a short circuit when it is on.

6. Machine battery failure: generally, CNC systems are equipped with batteries. For example, the system battery is used to store system settings; Even when the power is not on, the power of these batteries will be slowly lost. Failure to light up for a long time can easily kill the battery, resulting in a loss of data from machine tools.

4

Avoid failure of the CNC machine

1. For machine tools used for a long time, try not to turn off the machine during the long vacation and you can take an snapshot.

2. Regularly check the system fan.

3. Regularly check the hydraulic oil pressure, the level of liquid and the hydraulic impurities in the hydraulic system to ensure the smooth flow of the oil circuit.

4. Clean or regularly lubricate spring devices such as switches, knife arm springs, hydraulic valve springs, etc.

5. Clean regularly depending on the oil stains in the drive equipment.

6. Regularly replace the system battery for the tool machine and replace the desiccant for the electrical cabinet of the machine.

7. After the long vacation, before restarting, manually preheating each printed circuit card of the tool-tool.

CNC machines have a high degree of automation and are characterized by high precision, high efficiency and high adaptability. . A good working environment, a good user and a maintainer will not only considerably extend working time without defect and will improve productivity, but will also reduce the wear of mechanical components, will avoid unnecessary errors and will considerably reduce the burden of maintenance staff .