Grinding and polishing machine is a type of machine used for grinding and polishing, mainly achieved by the frictional force of abrasives (such as sanding wheels) on the surface of materials to achieve the polishing effect. Grinding and polishing machines, also known as grinders, are mainly used for polishing and surface treatment of metals,
For example, processing of metal composite materials such as aluminum, copper, stainless steel, etc; Can be used for surface treatment of non-metallic products such as glass.
The principle is: under the drive of the motor, the spindle runs at high speed and rotates; At the same time, it drives the needle disc (or drum) arranged in the spindle to make repeated movements along the tangential direction at a very high linear velocity; Due to the small contact area between the needle plate and the workpiece (usually around 10mm), its unit pressure is also relatively small (10-20 Kg/cm2);
In addition, the high-speed rotation of the needle disk generates a significant centrifugal force, while clamping the workpiece onto the spindle and increasing a downward working pressure. So under the interaction of two forces, all materials of the workpiece are thrown out from the inside out. The application field is: when rough polishing is required to improve the roughness value of metal parts after rust removal, such as automotive wheel bearing covers, etc; This equipment should be used for precision polishing of plastic parts after degreasing, such as injection molded products for TV housings.