Electric spindle maintenanceSteps:

5、 Electric spindle taper detection

1. Use universal BT/ISO/SK/HSK high-quality tool holders to connect the spindle, check the taper and end face fit, and verify whether the taper repair meets the standard.

2. Test the dynamic runout of the low-speed spindle to determine whether the spindle taper repair meets the standard.

3. Insert a 300mm taper inspection rod into the spindle hole, install a dial gauge on the magnetic gauge holder, and use the dial gauge to check the radial runout at points a and b, where ab is the center and far end of the spindle. The inspection rod can generally allow an error of 0.01mm at point a of the spindle, and a far end error of 0.02mm at point b is normal.

6、 Electric spindle dynamic balance detection:

1. Dynamic balance of rotor and shaft core: Simultaneously calibrate the balance on both calibration surfaces of the rotor, and control the remaining unbalance after calibration within the allowable range to ensure that the unbalance of the rotor meets the standard during dynamic operation.

2. Overall dynamic balance of the spindle: The spindle undergoes dynamic balance correction at various speed ranges, gradually adjusting the speed correction unbalance until it meets the European spindle factory standards.

3. We are very aware that every customer has precise balancing requirements for mechanical equipment. Perform precise dynamic balancing tests to ensure stable spindle operation and machining accuracy. The relevant evaluations include vibration suppression, leveling measurement, dynamic balance detection, load distribution, and spindle speed. By detecting the dynamic balance of the spindle, we can ensure good working accuracy performance of the machine tool during the machining process.

4. We will keep detailed records of all dynamic balance detection parameters to ensure subsequent inquiries and warranty services. Our mission is to ensure the stable and high-precision operation of your machine tool.

7、 Electric spindle running in verification:

1. Connect the spindle cooling device, lubrication device, and start the spindle low-speed operation to collect the low-speed rotation accuracy of the spindle.

2. Run in verification gradually increases the spindle speed from low to high, running for 30 minutes at each speed range to fully break in the spindle bearings for optimal performance.

3. Collect the temperature rise, noise changes, and vibration values of the front and rear bearing parts of the spindle at each speed range to determine whether the various indicators of the spindle after maintenance meet the factory standards.

4. Keep the spindle running for 60 minutes at the highest speed point to ensure smooth vibration and temperature rise without fluctuations.