Hydraulic Surface Grinder

Conventional surface grinding is one of the most critical steps in the metal finishing process. After forming, cutting and other complex processing, many work pieces will enter this step, and the process of surface grinding is used to create a smooth and detailed effect on the surface of the work piece. This is a common grinding method. In surface grinding, rough particles are covered on the surface of the spinning wheel. These particles will cut off chips of metal or non-metallic materials from the work piece to provide a flat and smooth surface with the expected accuracy.

Of all grinding methods, such as cylindrical grinding, internal grinding, and centerless grinding, surface grinding has the longest history and has always been one of the most common processing methods in the industry. Various grinding procedures can be controlled by computer controlled system. CNC grinding is a finishing method. It uses a rotating grinding wheel to smooth the surface of metal or non-metallic work pieces. It achieves a fine effect by removing impurities and burrs on the surface of the work piece, and the entire grinding process is controlled by the CNC system.


Hydraulic Clamping System

Clamping systems and chucks are key components in the cutting process of machine tools. Although some hydraulic based clamping systems are outdated, they are still popular due to their special functions and practicality. Hydraulic clamping can be widely used in metal processing because they are suitable for grinding, milling, EDM and other machining processes. Hydraulic technology can help to achieve high precision, rigid clamping and durability. Through polishing and grinding, the ideal and expected work piece surface can be obtained.
 
Regarding the mechanical composition, the mechanical structure of the surface grinder is composed of grinding wheel, work piece holding device and reciprocating worktable. During machining, the clamping device holds and fixes the work piece in place. The hydraulic clamping mechanism can be completed in two ways: one is to use a magnetic chuck to fix the ferromagnetic work piece in place. For non-ferromagnetic and non-metallic work pieces, vacuum or mechanical means can be used to fix them.
 
The clamping mechanism is essential for the entire machining process, because only with a strong positioning device can the work be completed accurately. In addition, the key factors affecting surface grinding also include the material of the grinding wheel and the material of the work piece. Work piece materials can be aluminum, brass, steel, cast iron, and mild steel. Some of them are more stable in nature and will not attach to the grinding wheel during processing. Others have different physical properties that may cause corrosion, which is not ideal for industrial use.   


Magnetic Clamping System

Compared with hydraulic cylinders and hydraulic chucks, the magnetic clamping system is a magnetic mechanism. Since clamping systems and chucks are important components in machine tools, some magnetic clamping systems are very popular due to their features and convenience. Magnetic clamping can be widely used in metal processing because they are suitable for grinding, milling, electrical discharge machining and even measuring. Magnetic technology enables high precision, non-deformable clamping. Through the polishing and grinding process, the required surface will be obtained to achieve the functional purpose programmed by the engineer.
 
The grinding wheel is not limited to a specific shape, but may be of various shapes. Machine operators can dress wheels for special purposes. It is worth noting that in the surface grinding process, the shape of the grinding wheel will affect the reverse shape of the work piece, so the operator must be aware of the shape change at any time in order to immediately modify the grinding wheel to maintain the grinding quality. Since the surface grinder is a machine tool used to provide precision grinding surfaces, its purpose may be grinding of specific sizes or surface finishing.


Accuracy

The accuracy of the hydraulic surface grinder depends on the type and application. In most cases, the surface grinder should be able to achieve a certain accuracy value of ±0.002 mm. In order to achieve this accuracy without deforming the work piece, the operator must pay attention to the clamping of the work piece.

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