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Key technical requirements for high-speed cutting

Time：

2020-02-10 10:51

High-speed cutting is an attractive technology in manufacturing technology, and it has a wide range of applications. Key technologies for high-speed cutting include:
High-speed cutting machine technology
 
High-speed machine tools are the prerequisites and basic conditions for achieving high-speed machining. The high-speed machine technology is described below.
 
Hangzhou Wanshun Diamond Tools Co., Ltd.
 
The high-speed spindle unit includes four main parts: power source, spindle, bearing and frame. It is the core component of high-speed processing machine tools. To a large extent, it determines the cutting speed, machining accuracy and application range that the machine can achieve. The performance of the high-speed spindle unit depends on a number of related technologies such as the design method, materials, structure, bearings, lubrication and cooling, dynamic balance, and noise of the spindle. Some of these technologies are mutually restrictive, including the contradiction of high speed and stiffness, high The contradiction between speed and high torque, etc.
 
Therefore, it is a very difficult task to improve the spindle speed and accuracy. The design and manufacture of high-speed spindles must be comprehensively considered to meet various technical requirements. High-speed spindles are generally made into the structure of electric spindles. The key technologies include high-speed spindle bearings, shellless spindle motors and their control modules, lubrication and cooling systems, spindle shank interfaces and tool clamping methods, and tool dynamic balance.
 
(2) High-speed feed system
 
The high-speed performance of the feed system is also one of the important indicators for evaluating the performance of high-speed machine tools, which is not only important for improving productivity, but also a necessary condition for maintaining the normal work of high-speed machining tools. The requirements for high-speed feed systems are not only capable of high-speed movement, but also instantaneous high-speed, instantaneous exact stop, etc., so they must have great acceleration and high positioning accuracy.
 
The high-speed feed system includes feed servo drive technology, rolling element guidance technology, high-speed measurement and feedback control technology, and other peripheral technologies such as cooling and lubrication, dust prevention, chip prevention, noise reduction, and safety technology.
 
There are three main driving methods for high-speed feed systems currently in use: high-speed ball screws, linear motors, and virtual axis mechanisms. Associated with the high-speed feed system are workbenches (trucks), guide rail design and manufacturing technologies, and more.
 

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