A grinding machine is a machine tool that grinds a workpiece surface with a grinding tool.
Most grinding machines are ground using high-speed rotating grinding wheels.
A few are processed using other abrasive tools such as oilstone, abrasive belts and free abrasives, such as honing machines, superfinishing machines, belt grinding machines, grinding machines and polishing machines.
Grinding machines can process harder materials such as hardened steel and hard alloys; they can also process brittle materials such as glass and granite.
Grinding machines can be ground with high precision and surface roughness, as well as high-efficiency grinding, such as abrasie grinding.
Grinder industry overview
The relationship between supply and demand is a prerequisite for the rapid development of an industry.
At present, the market demand is very large, while the supply side is slightly insufficient.
In particular, there are not many companies with core intellectual property rights and excellent product quality.
The industry as a whole lacks branding.
In the period of strong demand, the industry has huge demand and good development prospects. This is beyond doubt.
But how to maintain the health, stability and sustainable development of the industry requires the joint efforts of the industry.
In particular, it is necessary to play a spirit of excellence in research and development, further improve the production process, reduce costs, truly solve the practical difficulties of customers, strictly control the quality, and provide the most reliable products.
Grinder energy saving application
Grinding machines used in standard machining, grinding wheel motors are operated according to the traditional starting circuit.
After the motor starts, it runs at the rated speed.
Due to the fluctuation of the grid voltage, the friction load of the grinding wheel workpiece changes continuously, which will affect the motor speed error.
The standard grinding wheel motor starting circuit generally has only one processing speed, and it is difficult to adapt to different workpiece sizes and different processing relative linear speeds, so that the machining precision of the processed workpiece is difficult to guarantee.
Therefore, from the aspects of improving the processing quality, processing efficiency and energy-saving, the application of variable frequency speed control technology to the grinding machine can achieve satisfactory results.
There are many types of products processed in the machining industry, and size of the workpieces are different, requiring different processing precision.
Relatively speaking, the rotation speed of the grinding wheel is different at the main axis speed. It is difficult to adjust the spindle rotation speed to meet the workpiece processing line speed.
Due to the stress bending caused by the shaft machining process, the grinding wheel will produce different grinding wheel feed torques, which will bring about different changes in the grinding wheel output speed/torque, and correspondingly produce the vibration knife pattern/burning paste, etc. It is difficult to guarantee the grinding accuracy. This results in low production efficiency and low quality.
With the development of power electronics technology, frequency conversion speed regulation technology has become more and more popular, and the application of frequency converter in the machining industry has received good results.
Among them, the stepless speed regulation of the frequency converter, the soft start and the constant torque output greatly satisfy the requirements of the constant speed/constant torque of the machining equipment.
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