Introduction to Machine Tool Knowledge-Features-Category: Detailed introduced the characteristics of high precision, high-precision implies units with high accuracy, good rigidity, low-speed and non-crawling, high static, dynamic stiffness, and thermal rigidity with high accuracy, good rigidity.
CNC grinding machine sand wheels spindle components have high accuracy and good rigidity
The line speed of the sand wheel is generally 30 ~ 60m/s, the CBN wheel can be as high as 150 ~ 200m/s, and the highest spindle speed is 15000r/min.The main axis unit is the key component of the grinding bed. For high -speed and high -precision unit systems, it should have the characteristics of good rigidity, high rotation accuracy, small temperature rise, good stability, low power consumption, long life, and moderate cost.The bearing of the sand wheels spindle unit often uses high -precision rolling bearings, liquid static pressure bearing, liquid dynamic compression bearing, and dynamic static pressure bearing.In recent years, more and more high -speed and ultra -high -speed grinders have adopted electrical main axis unit components.
Using a high -precision unit with low speed and no crawling to the unit
Increases include servo drive components, rolling components, location monitoring units, etc.Entry unit is a necessary condition for maintaining the normal work of the sand wheel and one of the important indicators to evaluate the performance of the grinding bed.It is required that the unit is flexible, high resolution, high positioning accuracy, and fast dynamic response. It must have a large acceleration and a large driving force.The commonly used schemes used in the unit are the admission scheme of the combination of the intersection, the DC servo motor and the rolling screw combination or the direct -line servo motor.The transmission chain of the two schemes is very short, mainly to reduce mechanical transmission errors.Both solutions rely on motor to adjust their speed and turn.
CNC grinding beds have high static rigidity, dynamic rigidity and thermal stiffness,
Sand wheels, head frames, tail frames, workbenches, beds, columns, etc. are the infrastructure of CNC grinding machines. Its design and manufacturing technology is the foundation of the quality of the grinding machine.
CNC grinding beds need to have a perfect auxiliary unit
The auxiliary unit includes workpiece fast -loading device, high -efficiency grinding fluid supply system, safety protection device, spindle and sand wheel dynamic balance system, and dandruff treatment system.

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