NC Surface Grinding Machines

For metal grinding industry, cylindrical grinding and roll grinding is not like surface grinding, which 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 means. 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 NC controls.

Type of Surface Grinding Machines

In the subsector of metal grinding industry, cylindrical grinding and roll grinding is not like surface grinding, which 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 means. 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 NC controls.

NC controlled grinding makes convenience

The operation system of the NC machine is configured with a humanized operation panel that promises accurate signaling of grinding motions. The friendly human machine interface not only assures precision operation, but also great convenience for users in the manufacturing sites of many different conditions. With modern programming technology, operators of grinders nowadays only need to call the corresponding cutting programs from the machine memory and the machine will process with appropriate motions. In Taiwan, there are many cutting edge roll grinding machine suppliers that offers a comprehensive roll grinding solutions to users all over the world, such as PROMA Machinery, GRINDIX Industrial, PRAISE Machinery, WISE Machinery, etc. Many of these Taiwanese grinding machine manufacturers are experienced industrial insiders who know better than their customers about the application and the technical issues that determine the final precision. For example, the CNC Roll Grinder Machinery made by PROMA adopts FANUC CNC-controller and is applied to develop roll grinding process.

Rotary as a variable

Furthermore, a rotary surface grinding is a highly effective process thanks to the massive amount of grinding wheels in contact with the surface part of the work piece materials. Regarding each rotation of the rotary table, the entire surface to be ground comes in contact with the grinding wheel surface. There are many applications that require custom options or electromagnetic, mechanical, vacuum, pneumatic or hydraulic work-holding. Many manufacturing teams specialize in collaboration with their manufacturing or engineering team members to produce work-holding devices in order to meet customers’ manufacturing procedure and achieve great repeatable quality, accuracy and working efficiency.

Speeds

Aside from the productivity, variable speed rotary tables are standard with variable force electro-magnetic chuck as well as electronic sensed. Therefore, through the spindle vacuum, pneumatic or hydraulic are configuration characteristics on most rotary surface grinders in the market now, as surface grinding is the most common of the grinding operations and it is a finishing process that uses a rotating abrasive wheel to smooth the flat surface of metallic or nonmetallic materials to give them a more refined look by removing the oxide layer and impurities on the outer side of work piece appearance. The grinding process will also gain a desired surface for a functional purpose. The surface grinder is composed of an abrasive wheel, a work holding device known as a chuck with cylinder powered basis, and a reciprocating or rotary table. This is the arrangement.

Chucks

Also, the chuck item will hold the material in place while it is being worked on. It can do this one of two ways: ferro-magnetic pieces are held in place by a magnetic chuck, while non-ferro-magnetic and non-metallic pieces are held in place by vacuum or mechanical means. Regarding the vise, a machine vise placed on the magnetic chuck can be used to hold non-ferro-magnetic work pieces if only a magnetic chuck is available. Affecting factors to consider in surface grinding are the material of the grinding wheel and the material of the piece being worked on. Compared with some specific grinding cases, typical work piece materials include cast iron and mild steel and these two materials don't tend to clog the grinding wheel while being processed. Other materials to be ground are aluminum, stainless steel, brass and some plastics, while the last one is least to be conducted since it could be well managed through other mechanisms. Once the grinding is at high temperatures, the material tends to become weakened and is more inclined to corrode. This can also result in a loss of magnetism in materials where this is applicable. The grinding wheel is not limited to a cylindrical shape and can have a myriad of options that are useful in delivering different geometries to the object being processed.

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