Surface grinder is a kind of diamond-tipped grinding machine. It uses rotating disks of diamond (anti-reflective) that are pushed into the workpiece and its interface with the workpiece. It is an extensively used industrial abrasive machining procedure where a spinning diamond-tipped abrasive wheel is kept exposed to the workpiece, making a solid face of it smooth or flat. After that, the abrasive is spun around with the help of a chuck or burr wheel, and it comes in contact with the work material that it is meant to grind. This activity takes place inside a rotating cylinder attached to the grinding machine.
The major operation of the grinding wheel and the surface grinder are simultaneous. The working part of the machine includes a chuck, a blade, a stationary stand, and a rotary table, where the workpiece is positioned and the diamond-tipped grinding wheel is placed above it. In this way, the workpiece is moved through the opening in the chuck or stand, and the abrasive is spun around at the same time. When the work piece moves, the grinding wheel also rotates and the work piece is moved through the structure made by the stand or cylinder.
In spite of its wide application, including abrasive applications, surface grinders are typically used in two major industries. One of them is vertical machining. In this case, the working area is elevated and the operation is similar to that of the scroll saw. However, the machine has a vertical lift, which allows the operator to reach up to the height of the product.
In another industry, the most commonly used type of surface grinder is the vertical counter-rotating machine. This type of machine is commonly used for precision bearings, blocks, and other precision components that need to be perfectly ground. The rotating wheel is set at a 45-degree angle, and the machine uses a vertically rotating gear and spindle assembly to do the grinding. Unlike other types of grinding machines, the counter-rotating unit does not use a cam, which means that the grinding is not circular. In this case, the product is moved along the inside surface of the housing, which means that the product is perfectly grinded even though the machine is moving.
The other main type of surface grinder is the reciprocating one. The work piece is held on the rotary table by a crank that moves in one direction with the assistance of a shaft and counter-rotating diamond-tipped grinding wheel. The product to be printed moves inside the housing and gets printed along the diamond-tipped surfaces. This type of grinding wheel is commonly used in sanding, abrasive finishing, and polishing. Because of the continuous rotation of the work piece, the product is ground in the same fashion each time it is run.
The two types of surface grinders are similar, but there are differences between them as well. The first difference is that the first type has a longitudinal feed that starts out on one side of the work piece, while the other type has a continuous feed that starts out on both sides of the work piece. The second difference is that the first type of surface grinder moves the work piece to the rear or outside of the housing whereas the second type allows the machine to stay stationary. This is because the first type of machine usually has a fixed vertical position and the second type allows the machine to move vertically so that the work piece is moved to the rear of the housing. All in all, both types of surface grinders grind products to the same precision.