Customized Grinding Machines

In the metalworking industry, grinding machines are used to finish the further processing via the abrasive cutting methods in a wide spectrum of cutting mechanisms that help to finalize the work piece materials. Grinding machines are with many different types of models, such as external, internal, cylindrical, roll, and surface grinding mechanisms. Each of the above mentioned models are designed with different mechanisms that work to process the work pieces, while based on customers’ demands; the grinding specifications are various due to the fact that there are many different places that need to be processed with the grinding mechanism. A roll grinder is a powered grinding tool or machine tool that used for grinding process, which is a common type of machining that utilizes abrasive wheel or wheels as the cutting means for processing. Each grain of abrasive on the wheel's surface cuts a small chip from the work pieces through shear deformation method. There is a huge number of grinding machine inventory. Regarding the grinder inventory, there are belt grinder, bench grinder, cylindrical grinder, surface grinder, tool & cutter grinder, jig grinder, gear grinder, die grinder, angle grinder, and roll grinder, just to name a few. Cylindrical grinder includes both the types that use centers and the center-less types. A cylindrical grinder may have multiple grinding wheels for different purposes.

Type of Grinding Machine

Metalworking industry is a rather complicated field and grinding machines are used to finish the further processing via the abrasive cutting methods in a wide spectrum of cutting mechanisms that help to finalize the work piece materials. Grinding machines are with many different types of models, such as external, internal, cylindrical, roll, and surface grinding mechanisms. Each of the above mentioned models are designed with different mechanisms that work to process the work pieces, while based on customers’ demands; the grinding specifications are various due to the fact that there are many different places that need to be processed with the grinding mechanisms for grinding.

Roll grinder

A roll grinding machine is a powered grinding tool or machine tool that used for grinding process, which is a common type of machining that utilizes abrasive wheel or wheels as the cutting means for processing. Each grain of abrasive on the wheel's surface cuts a small chip from the work pieces through shear deformation method. There is a huge number of grinding machine inventory. Regarding the grinder inventory, there are belt grinder, bench grinder, cylindrical grinder, surface grinder, tool & cutter grinder, jig grinder, gear grinder, die grinder, angle grinder, and roll grinder, just to name a few. Cylindrical grinder includes both the types that use centers and the center-less types. A cylindrical grinder may have multiple grinding wheels for different purposes.

Furthermore, in order to be more specific, a roll grinding is nearly the same as cylindrical grinding in most of the processing details, there are some critical differences between the two categories. First of all, roll grinding method is developed specifically for certain issues that usually require machines that are designed for such heavy works. Therefore, these machines are larger in size, heavier in weight, and are more rigid if compared with plain cylindrical grinders. As a result, normally these machines have no provision for doing tapered works and tasks. Usually, rolls are commonly used in many industrial sectors for processing products, for paper, paint, steel, textiles, and rubber material processing missions.

Crown surface

However, the length of the rolls varies from a few centimeters up to six meters or more, and throughout the length, a highly finished surface is required. In practical usages, these rolls give sheet metal work pieces the high finish, which is required without polishing or further buffing. In addition, if the rolls are designed to be used for cold-forming metal, then the great pressure between the work and the rolls would cause the rolls to spring apart at the center. Once if such situation occurred, the rolled metal would be thicker at the center while thinner at the edges if the perfectly uniform diameter rolls were used for this purpose. Therefore, the desirable correct curve of the face of the roll needs to be carefully calculated. In addition, when it comes to roll grinding, machines should occur with a crown or convex surface for precision. Usually roll grinders would have provisions for rotating the rolls on their own bearings.

Grinding of work piece surface

Roll grinding, cylindrical grinding, internal grinding, are in a certain kind of view point belong to a group of grinding works. Unlike cylindrical grinding and roll grinding, surface grinder has a head that is lowered to a work piece, which is moved backwards and forth under the grinding wheel on a table that typically has a controllable permanent magnet (which work as a magnetic chuck) for use with magnetic stock, but can have a vacuum chuck or other fixture measures.

In sum, the most common surface grinders have a grinding wheel rotating on a horizontal axis cutting around the circumference of the grinding wheel. Rotary surface grinders, commonly known as "Blanchard" style grinders, have a grinding head which rotates the grinding wheel on a vertical axis cutting on the end face of the grinding wheel, while a table rotates the work piece in the opposite direction underneath. This type of machine removes large amounts of material and grinds flat surfaces with noted spiral grind marks. It can also be used to make and sharpen metal stamping die sets, flat shear blades, fixture bases or any flat and parallel surfaces. Surface grinders can be manually operated or have CNC controls.

With CNC control system, the programmed grinding would be steady and smooth, but the systems are subject to users’ working habits and there are now many self-developed grinder controllers all over the world. Users of grinders need to study and learn how to manage the systems first in order to carry on their processing; otherwise the operation will not be easy. With the double column to be added unto the surface grinding machines, the heavy duty capacity is to be further reinforced. With the computerized planning programmed grinding routes, the grinding quality is thus further refined.

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