The working principle, application and future development trend of double disc grinding machine

Double disc grinding machine is a kind of high-efficiency surface processing machine tool, its grinding process is mainly through the simultaneous action of two grinding wheels, the two parallel end faces of the workpiece for high-precision grinding. The following is the detailed grinding process of double face grinder:

First, the principle of grinding

Double disc grinding is mainly composed of a feeding disk and two grinding wheels. In the grinding process, the roller (or other workpiece) is mounted in the working hole of the feeding disk, and when the feeding disk rotates, the roller passes through the grinding zone in the middle of the two grinding wheels. The two grinding wheels rotate at high speed, using their end surfaces to grind the two end surfaces of the roller parallel to each other at the same time. Due to the high-speed rotation of the grinding wheel and the feeding disk's circular motion feeding, forming the grinding wheel on the two end faces of the roller grinding, so that the roller to obtain the ideal perpendicularity, parallelism and roughness of the end face.

Second, the grinding process

Feeding and positioning:

The workpiece is placed in the working hole of the feeding disk, and the feeding disk rotates to feed the workpiece into the grinding area.

In this process, the outer busbar of the workpiece is attached to the inner surface of the working hole as the positioning reference, and the inner surface of the working hole is equivalent to the support.

Grinding with autorotation:

When the workpiece is transferred to the grinding zone by the feeding disk, due to the action of the two grinding wheels rotating in the same direction at high speed, the workpiece bushes are attached to the inner surface of the working hole to realize the rotation.

The linear speed of the workpiece rotation is much lower than the linear speed of the cutting point of the grinding wheel, and this speed difference ensures high efficiency and precision of grinding.

Grinding area:

The double disc grinding process is similar to centerless throughfeed grinding and consists of guiding, grinding and sharpening zones.

To ensure grinding quality, the end faces of the two grinding wheels should be dressed so that they are not parallel to each other but are each symmetrically inclined at an angle to the swivel plane of the feed disk.

Precision control:

The parallelism, perpendicularity and surface roughness of the workpiece can be accurately controlled by adjusting parameters such as the rotational speed of the grinding wheel, the speed of the feeding disk and the dressing angle of the grinding wheel.

Modern double disc grinding machines mostly adopt numerical control technology, which can automatically adjust these parameters and realize high-precision and high-efficiency grinding.

Third, the field of application

Because of the high precision and high productivity of the ground products, double face grinding machines are widely used in many industries such as automobile and motorcycle, bearings, magnetic materials, etc. For example, the piston in the automobile and motorcycle industry is widely used. For example, piston pins, piston rings, valve gaskets, connecting rods and other parts in the automobile and motorcycle industry, as well as inner and outer rings and rollers of bearings are all suitable for processing by double disc grinding machines.

Fourth, the development trend

With the rapid development of industrial production and science and technology, double face grinding machine is developing in the direction of precision and full automation. Modern double face grinding machine not only has higher machining accuracy and productivity, but also equipped with advanced numerical control system and automatic loading device, which can realize continuous and efficient automatic production. At the same time, in order to meet the challenges of environmental protection and cost control, double face grinding machines are constantly optimized and innovated in terms of material selection and energy utilization.

To sum up, Double disc grinding machine realizes high-precision grinding of two parallel end faces of workpiece through its unique grinding principle and process. In modern industrial production, it has become one of the indispensable and important equipment.