Precautions for installation and daily maintenance of gantry machining center

CNC gantry machining center is a high-precision and high-efficiency automation equipment. It has certain requirements for early installation and later maintenance. If your gantry machining center has errors or low processing efficiency, I suggest you take a look.

The more precise the CNC gantry machining center, the stricter the requirements for the installation environment, temperature, humidity, and vibration, all of which need to be considered. Let’s briefly talk about the requirements for the installation foundation of the CNC gantry machining center.

The foundation for installing the gantry must be firm. Make the foundation according to the specific foundation drawings issued by the manufacturer. For the ground with relatively firm concrete, if it is thick enough, you can directly install the anchor bolts according to the drawings. For looser ground, you must re-open according to the foundation drawing Digging for construction. And pour concrete of sufficient thickness to prevent the sinking of the gantry machining center in the later stage. After falling, the bed will be deformed and there will be no precision. The size of the foundation made cannot be smaller than the overall size of the supporting area of the gantry processing center, and the thickness of the foundation concrete construction must be in accordance with the national standard.

Gantry machining centers are prone to vibration when processing large workpieces. The heavier the foundation of the gantry processing center, the thicker the foundation. The low pressure of the concrete is 1800 N/m2, the tensile strength is 180 N/m2, and the bearing strength of the ground is greater than 5 tons/m2. There should be no cracks in the concrete foundation, and anti-vibration materials should be added in the foundation workshop.

With a tool magazine, it is a machine tool with relatively high precision. In daily use, how should we maintain the accuracy of the gantry machining center and prolong the service life of the gantry machining center?

Inspection items for accuracy maintenance of gantry machining center

1. Turn on the machine and preheat for about 10 minutes. If the machine is placed for a long time, the preheating time of the machine should be extended appropriately

2. Check whether the oil circuit is unblocked

3. Before shutting down, place the workbench and saddle at the center of the machine (move the three-axis stroke to the center of each axis stroke).

4. Daily cleaning and cleaning of the gantry processing center.

Daily protection and maintenance of Longmen machining center

1. Check the lubricating oil level of the gantry machining center. It is recommended to use T68# guide rail lubricating oil.

2. Timely add the coolant in the coolant tank of the gantry machining center

3. Check the height of the oil level of the pneumatic triple unit of the gantry machining center, which is about 2/3 of the height of the entire oil pipe.

4. Discharge the moisture in the pneumatic triple oil filter tank through the drain switch every day.

5. Check the air pressure of the gantry machining center, loosen the adjustment knob, and adjust the pressure according to the principle of right-handed boosting and left-handed decompression, generally set at 5-7KG/CM2. The pressure switch is generally set to 5 KG/CM2, and when it is lower than 5KG/CM2, it will alarm, and the system will display "LOW AIR PRESSURE" alarm, and the alarm message will disappear after the pressure rises.

6. Check whether the air blowing in the taper hole of the main shaft of the gantry machining center is normal, and wipe the inner taper hole of the main shaft with a clean cotton cloth, and spray light oil.

7. Clean the tool arm, tool and claw of the tool magazine of the gantry machining center in time. Clean the exposed limit switches and touch blocks of the gantry machining center.

8. Eradicate the cutting and oil stains on the working table of the gantry machining center, inside the CNC machining center, and on the three-axis elastic shield.

9. Check whether all the signal lights of the gantry machining center and the abnormal alarm warning lights are normal. Check whether there is any leakage in the oil pressure unit pipe of the gantry machining center.

10. After the daily processing tasks of the gantry processing center, cleaning and cleaning operations are carried out to ensure that the surroundings of the gantry processing center are neat.

11. When not in use for a long time, ensure that the gantry machining center is clean, and apply lubricating oil to the guide rails of the machine tool to prevent rust.