The knowledge of step grinding wheel of cylindrical grinder

Update:12-05-2022
Summary:

The cylindrical grinder is composed of a bed, a worktab […]

The cylindrical grinder is composed of a bed, a worktable, a headstock, a tailstock, a grinding wheel frame and an internal grinding head. The stability will be very beneficial. There are longitudinal guide rails on the bed, the worktable is on the longitudinal guide rail, the grinding wheel frame is installed on the transverse guide rail, and the hydraulic transmission or gear transmission and other transmission devices are installed inside the bed. The longitudinal guide rail on the top performs linear reciprocating motion, which is driven by hydraulic pressure to realize longitudinal feeding.

Cylindrical grinder, at present, its application is also very extensive, because it can not only process materials with higher hardness, such as hardened steel, cemented carbide, etc., but also can process some brittle materials, such as glass, Granite etc. In addition, the cylindrical grinder is also good in grinding, which can perform both high-precision grinding and high-efficiency grinding. It can be used to operate the workbench automatically. The workbench is composed of upper and lower layers. The upper workbench can be wound around the lower workbench. When grinding the inner cylindrical surface to try the taper, it can be adjusted appropriately to offset the raincoat of the workbench. The main shaft of the grinding wheel frame can be operated by the first wheel. The grinding wheel is installed on the main shaft, and there is a separate click and direct drive by the pulley. accomplish.

When the cylindrical grinder is ground by the deep grinding method, the grinding wheel is trimmed into a stepped shape according to the needs. The advantages of the cylindrical grinder are: high production efficiency, high grinding quality, high grinding wheel life, good dimensional stability, low labor intensity, easy to implement Semi-automatic operation.

1. The number of steps of the ladder
The number of steps is determined by the size of the machining allowance and the width of the grinding wheel. The larger the allowance, the wider the grinding wheel and the more grades.

2. Step depth
The depth of the steps depends on the hardness, particle size, surface quality of the workpiece and material properties of the grinding wheel. Usually, the maximum depth is 0.1~0.14mm, and the minimum depth is 0.01~0.02mm. It should be noted that the depth of the steps decreases in turn.

3. Step grinding wheel dressing
The step grinding wheel is trimmed with diamond, which can be manually or motorized. The trimming allowance is determined by the depth required for each stage, and the amount of trimming each time does not exceed 0.05mm. The feed rate of the last step of the cylindrical grinder can be appropriately smaller, because the last step determines the roughness and grinding accuracy of the workpiece surface, and should be carefully trimmed.

After the grinding wheel of the cylindrical grinder is blunt, it can be re-dressed, as long as a layer of allowance is removed, and it is not necessary to remove all the steps.

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