DDJYN-A-B internal circular grinding dynamic and static pressure shaft

Parameters

Speed: 800-6000rpm

Applicable machine tools: internal cylindrical grinding

Features: high precision, high rigidity, high service life, high load-bearing capacity, high anti vibration

Precautions for using dynamic and static pressure spindles

1. After one year of normal use, the 2 # spindle oil and coarse and fine filter element should be replaced

2. When replenishing oil for normal use of the pump station, it is necessary to filter and add three layers of silk cloth

3. The main shaft pulley and grinding wheel must be loaded and unloaded while the pump station is working. The spindle is operated in a state where static pressure oil floats, so as not to damage the spindle

4. Before the grinding wheel spindle starts working, observe whether the pump station pressure and grinding head static pressure are within the specified range

5. When the equipment stops, be sure to first stop the grinding head motor. After the grinding wheel stops steadily, turn off the pump station, otherwise it is easy to damage the grinding head

Before replacing any parts on the pump station, be sure to first remove the high-pressure inlet hose connector. After replacing the parts, the oil circuit will circulate for 15-20 minutes before connecting the inlet pipe to the grinding head. This ensures that the spindle oil entering the grinding head is finely filtered ultra clean spindle oil, which can extend the service life of the dynamic and static pressure spindle

Technical parameters and characteristics of dynamic and static pressure grinding head

The dynamic and static pressure spindle is a wear-resistant spindle supported by a dynamic and static pressure oil film. It combines the advantages of dynamic and static pressure spindles while avoiding their disadvantages. It will have broad application prospects in high-precision CNC machine tools.

. Wide applicability: Suitable for high-precision, high-efficiency, heavy-duty, wide grinding wheel and other fields

The radial jump of the main shaft is ≤ 0.001mm, and the axial displacement is ≤ 0.001mm

The spindle speed is related to the shaft diameter. A larger shaft diameter results in a lower speed, while a smaller shaft diameter results in a higher speed. The speed range is 800-5000/min

Front and rear static pressure oil chamber seat temperature

; 60 ℃

The accumulator should be powered off and maintain pressure for no less than 1 minute.    

The spindle operation noise is less than 65db

Within the range of cutting conditions:     The spindle should work normally and there should be no abnormal noise

Processing surface roughness Ra<0.6um

Oil model: No.2 spindle oil

The oil supply pressure of the hydraulic station is 1.8-2.5MPa, and the main shaft can work normally

When installing a regular grinding wheel, ensure that the linear speed is ≤ 60 meters per second to avoid safety accidents