Does anyone know what books are available for motor spindle repair?

This check can find a lot of relevant knowledge, plus their own practice, in addition to some imported spindles, many domestic ones are the same principle, more touch and dismantle in fact, it is not difficult to repair the spindle! The point is that the accessories are not good.

The electric spindle has the advantages of compact structure, light weight, small inertia, low vibration, low noise, fast response, etc., which can reduce gear transmission, simplify the shape design of the machine tool, and easy to realize the spindle positioning, which is an ideal structure in the high-speed spindle unit. As the most critical component of high-speed CNC machine tools, the performance of the electric spindle determines the machining accuracy and production efficiency of the entire high-speed machine tool to a large extent, so all industrial countries are very concerned about the research and development of high-speed electric stool spindle, and have invested heavily in well-equipped processing and testing equipment, established a constant temperature and clean assembly environment, and formed a number of professional production bases for electric spindles. The design and manufacturing technology of electric spindle in China has just started, and the scale of mass production has not yet been formed, and there is still a large gap between the performance indicators of the electric spindle and foreign countries.

In order to speed up the development and application of China's high-speed machining technology and accelerate the upgrading of CNC machine tool products, it is recommended to further organize forces to carry out technical research and realize the specialized mass production of electric spindles as soon as possible. The work of the electric spindle is not only high, but also requires a high angular deceleration and angular acceleration, and the Zheng shirt brigade is quickly and accurately stopped at the designated position, which puts forward very strict requirements for its structural design, manufacturing and control and brings a series of technical problems, such as heat dissipation, lubrication and precision control of the electric spindle. In the design, these problems must be properly solved to ensure the stable and reliable high-speed operation of the spindle and achieve efficient and precise machining.

As the core component of the machining center, the motor spindle combines the machine tool spindle with the AC servo motor shaft, that is, the stator and rotor of the spindle motor are directly loaded into the interior of the spindle assembly, and after accurate dynamic balance correction, it has good rotation accuracy and stability, forming a perfect high-speed spindle unit, also known as the built-in electric spindle, during which the belt gear transmission pair is no longer used, so as to realize the "zero transmission" of the machine tool spindle system, and the rotor directly drives the spindle to run after being energized.

Since the spindle is a high-speed precision component, regular maintenance is very necessary. The regular maintenance of the motor spindle is as follows:

1.The axial runout of the motor spindle is generally required to be tested twice a year.

2.The radial runout of the taper bore in the motor spindle is generally required to be tested twice a year.

3.The radial runout of the distal end (250mm) of the mandrel mandrel is generally required to be tested twice a year.

4.The tension force requirement of the butterfly spring is: 16 27kN (taking HSK63 as an example) to test twice a year.

5.The distance extended when the broach bar is loosened is: taking HSK63 as an example) is tested 4 times a year.