Grinding method of double disc grinder

The grinding method of double disc grinder is a kind of efficient and precise surface processing technology, which can grind two parallel end faces of the workpiece at the same time in one process. The following is a detailed analysis of the grinding method of double disc grinder:

First, the classification of grinding mode

Double disc grinder can be divided into horizontal and vertical according to the structure, and according to the feeding method, it can be further subdivided into swing arm plunge-cut, rotary through the type and through a variety of types.

1. Swing-arm plunge-cut type:

Characteristics: Pendulum arm plunge-cut grinding is carried out using a workpiece, and the workpiece is ground between CBN grinding wheels. This type can also perform circular reciprocating oscillating grinding, which requires very high precision of the processed workpiece, but the machining efficiency is relatively low.

Application: Generally used for workpieces that do not require high machining efficiency but have a large machining allowance (usually between 0.15mm-0.25mm) and very high requirements for precision.

2. Rotary through type:

Characteristics: It is suitable for the machining of small and medium-sized workpieces. The rotary feed disk has the function of automatic loading and unloading, so it is especially suitable for the machining of workpieces such as bearing rings and blades. This method is excellent in machining accuracy and machining efficiency, and the machining accuracy is usually between 0.003mm-0.005mm.

Application: Widely used for round or nearly round workpieces that require high precision machining, such as bearings, valve seats, valve plates, and so on.

3. Pass-through type:

Characteristics: Adopting continuous processing method, the workpieces enter between two CBN grinding wheels one by one through the feeding belt for continuous grinding. This method has the highest processing efficiency, but the processing accuracy is relatively low, generally controlled within 0.01mm.

Application: suitable for mass production and not very strict requirements for machining accuracy of the workpiece.

Second, the grinding principle and advantages

The double disc grinder clamps and grinds the workpiece through two relatively rotating grinding wheels, and at the same time utilizes a feeding device to feed the workpiece into the grinding area. This method ensures that the two parallel end faces of the workpiece reach a very high degree of parallelism and surface roughness in a very short period of time.

Third, the technical characteristics and application areas

High precision: the double disc grinder can realize micron-level machining accuracy to meet the processing requirements of precision mechanical parts.

High efficiency: grinding of two end faces can be completed in one clamping, which greatly improves the processing efficiency.

Widely used: applicable to the processing of a variety of round and shaped workpieces, such as bearings, piston rings, valve seats, valve plates, and so on.

Fourth, the future development trend

With the continuous improvement of modern industry's requirements for processing accuracy and efficiency, it is developing in the direction of more precision and full automation. In the future, double face grinding machine will pay more attention to the application of intelligent control, online monitoring and fault diagnosis and other technologies, in order to further improve the processing quality and production efficiency.

In summary, the grinding method of double disc grinder occupies an important position in the field of machining with its high efficiency and precision. With the continuous progress of technology and the continuous expansion of application fields, double disc grinder will continue to play its important role and contribute to the development of modern industry.