CNC Surface Grinder

Grinding plays an important role in the metal processing industry. In the field of metal grinding, the CNC surface grinding wheel moves down to the work piece and moves forward and backward for processing. Grinding wheels of CNC surface grinders are usually used with controllable permanent magnets (used as magnetic chucks) or other magnetic materials, and can also be used with vacuum chucks or other fixtures.

The most common CNC surface grinders equip a grinding wheel that moves along a horizontal axis and rotates, using the outer periphery of the grinding wheel for CNC surface grinding. Rotating surface grinders commonly referred to as "Blanchard" type grinders move and rotate the grinding wheel along the vertical axis, using the end face of the grinding wheel for grinding.

The CNC surface grinders can be used to remove large amounts of material and grind on flat surfaces with obvious spiral grinding 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. The surface grinder can be operated manually or with a CNC control system which provide CNC surface grinding services to machine users.


CNC control

Programmed cutting is not limited to turning, milling, and drilling, but it can also be used for grinding, so which is CNC surface grinding. The CNC control system is equipped with a humanized operation panel, which can correctly display the grinding movement. The friendly interface not only ensures accurate operation, but also provides great convenience for the processing environment of different conditions.

With modern programming technology, today's operators of CNC surface grinding machines only need to access the corresponding cutting program from the CNC control system storage, and the precision CNC surface grinding machine will process with the same program. In Taiwan, there are many precision CNC surface grinding machine suppliers who provide comprehensive grinding solutions and services to users around the world, such as PROMA Machinery, GRINDIX Industrial, PRAISE Machinery, WISE Machinery, etc. These Taiwanese grinding machine manufacturers are experienced professionals who understand the various applications and technical issues of precision CNC surface grinding machines better than their customers. For example, the CNC Roll Grinder Machinery made by PROMA adopts FANUC CNC-controller and is applied to roll grinding.


General process: Old and classic

In all grinding methods (such as cylindrical grinding, internal grinding, centerless grinding), surface grinding is the oldest and most widely used one. CNC surface grinding is a finishing process, which uses a rotating grinding wheel to smooth the surface of metal or non-metal materials. To be precise, under the CNC control mechanism, the unevenness and burrs on the surface of the work piece are removed to create a fine surface of the work piece.


Grinding engineering

Regarding the mechanical structure, the surface grinder is composed of a grinding wheel, a work piece clamping device and a reciprocating table. During processing, the clamping device fixes the work piece in place.

Clamping devices can be divided into two types: one is to clamp the work piece by a magnetic chuck and fix the work piece in place, and the other is by vacuum or mechanical means. The performance of clamping device is essential to the entire machining process, because only with a firm clamping device can the grinding work be completed accurately.


Affecting factors

Other key factors that affect the quality of CNC surface grinding are the material of the grinding wheel and the work piece. Generally, work piece materials include aluminum, brass, steel, cast iron, and mild steel. Some of these materials are relatively stable and will not adhere to the grinding wheel during processing, while some may corrode during the processing and then adhere to the grinding wheel, making them less suitable for complex machining. 

Another key factor is the shape of the grinding wheel, which can be of various shapes. On-site operators can dress wheels for special grinding 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 always pay attention to the shape change in order to modify the grinding wheel in time to maintain the grinding quality.


Finishing

A CNC surface grinder is a machine tool used for precision grinding, including grinding of specific sizes or surface finishing. Its accuracy depends on the type and application of the surface grinder. However, a certain level of accuracy can be achieved on most surface grinders.


Conclusion

CNC programmed can make the surface grinding very accurate and highly productive. With the growth of industrial demand and market trends, it is foreseeable that surface grinding controlled by CNC systems can provide best performance and services to grinder users.

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