Motorized spindle is broken how to repair? - bearing knowledge

Motorized spindle is the recent ten years will appear in the field of nc machine tool spindle and the spindle motor with new technology, it is the 'core' of high-speed CNC machine components, its performance directly determines the high speed machine tool performance. Motorized spindle has compact structure, light weight, small inertia, small vibration, low noise, the advantages of fast response, can reduce the gear transmission, simplify the machine tool design, easy to implement the spindle positioning, is an ideal structure of high speed spindle unit. High-speed motorized spindle for CNC machine tool is the most key components, its performance depends to a large extent determines the processing accuracy and production efficiency of the high speed machine tool, so the industrial countries are very concerned about research and development of high speed motorized spindle, invested heavily in succession, well-equipped processing and testing equipment, to establish a constant temperature, clean assembly environment, formed a professional production base of a lot of motorized spindle. Motorized spindle design and manufacturing technology has just started in our country, has yet to form a batch production scale and technical specifications of the motorized spindle and foreign has a larger gap. In order to speed up the development and application of high speed machining technology in our country, accelerate the upgrading of CNC machine tool products, suggest further organizational strength for technical research, the realization of the motorized spindle specialization of batch production. Work is not only high speed motorized spindle, and requires high Angle velocity and Angle acceleration reduction, in the specified location must stop quickly, it is the structure design, manufacturing and control put forward very strict requirements and bring a series of technical problems, such as heat dissipation of motorized spindle, lubrication and precise control, etc. In the design, it is necessary to properly solve these problems, in order to ensure the high speed of the spindle is stable and reliable, high precision machining. Motorized spindle as the core component of machining center, it will close 2 for one, machine tool spindle and ac servo motor shaft of the spindle motor stator and rotor directly into the interior of the spindle component, and through the accurate dynamic balancing correction, have good rotation accuracy and stability, forming a perfect high speed spindle unit, also known as the built-in motorized spindle, it no longer USES the belt gear transmission, so as to realize the 'zero transmission' of machine tool spindle system, electricity directly drive the rotor spindle after operation.