High end electric spindleIt has the advantages of compact structure, light weight, low inertia, low vibration, low noise, and fast response speed. It can reduce gear transmission, simplify machine tool design, and make high-end electric spindles easy to achieve spindle positioning. This is the ideal structure in high-speed spindle units. High end electric spindle maintenance manufacturers are looking for Shunyuan Precision with professional quality assurance; The electric spindle is the most critical component of high-speed CNC machine tools, and its performance largely determines the machining accuracy and production efficiency of the entire high-speed machine tool. As the core part of the machining center, the electric spindle is integrated with the spindle of the AC servo motor, that is, the stator and rotor of the spindle motor are directly installed inside the spindle assembly, and after precise dynamic balance correction, it has good rotational accuracy and stability. Sex has formed a perfect high-speed spindle unit, also known as a built-in electric spindle, which no longer uses belt and gear transmission, thus achieving "zero transmission" of the machine tool spindle system and ensuring precision. After connecting the power supply, the rotor directly drives the spindle.

Key points of high-end electric spindle maintenance technology:

1. Measure static and dynamic radial runout, improve clearance, and axial yaw based on the damage of the electric spindle.

2. Use specialized tools to remove the electric spindle. Clean and measure the swing and wear of the rotor.

3. Optional bearings. In practical operation, it is best to use the thumbs of both hands to push the bearing into the sleeve for electric spindle maintenance. Being too tight can cause the outer ring of the bearing to deform, the temperature of the bearing to rise too high, and it can become too loose, reducing the stiffness of the grinding head.

4. The cleanliness of bearings is an important part of ensuring their normal operation and service life. Do not blow the bearings with compressed air, as the hard particles in the compressed air will roll and become rough.

5. Cone bearings or angular contact ball bearings should pay attention to the installation direction of the bearings and have requirements for rotational accuracy. Use specialized tools throughout the entire assembly process to remove assembly errors and ensure assembly quality.

When the inner hole of the sleeve deforms, the roundness exceeds the tolerance, or the bearing is too loose, local electroplating methods can be used for compensation and grinding. This method can also be used in the journal.

The end faces of the round nut and oil seal cover on the electric spindle are in close contact with the end face of the outer ring of the bearing, so the perpendicularity of the threaded part and end face is high, and the contact conditions can be checked by coloring method.