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Posted on Oct 16, 201913
The CNC vertical machining centers are also abbreviated as VMC, which are specially developed machines for machining carbide materials and complex contour work pieces.
Most work pieces processed using Vertical machining center are based on the hardness of their materials, such as aviation propellers, landing gear, fuselage shells, wing frames, etc. In addition to traditional CNC machining center models, vertical machining centers have also been developed and used for hard alloy materials and complex work pieces heavy duty axis machining tasks.
A CNC vertical machining center is a CNC based VMC machine tool that can provide a variety of deep machining, and it can handle multiple precision machining tasks at the same time. This convenient one stop machining method was originally derived from traditional CNC milling and tapping machines. At that time, the propeller aircraft became a jet aircraft. Because the speed of the two was very different, this special type of CNC machine tool was invented to meet the higher heavy duty standards and stricter requirements of the aviation industry, such as multi axis machining.
After the revolutionary changes in the aerospace industry, CNC machine tools and machine centers have been used in various industries due to their higher processing probabilities and capabilities. The unique functions of vertical machining centers provide a wide range of competitiveness for industries such as automotive, power generation, hardware, and home appliances.
The original goal of the milling machine was to remove the work piece material with a movable spinning tool. Later, due to the use of various axis alignments, both the box guide and the linear guide can be processed in different directions. In addition to the traditional turning functions, milling can also cover a variety of cutting operations, ranging from single tiny parts for 3C consumables to large scale milling tasks for heavy duty industry. On the other hand, similar to turning, milling is one of the most commonly used machining methods, which helps field operators achieve precise machining for heavy duty cuts.
Therefore, the research and experiments of milling and tapping methods are highly valued in the academic field and in private companies. Conventional lathes are relatively difficult to process work pieces with complex contours. With this expectation, the idea of a vertical machining center gradually formed in the minds of engineers in machinery manufacturers.
Nowadays, vertical machining centers can be used to describe various CNC tapping or drilling and milling machines, which are equipped with a series of critical accessories such as linear guides, roller screws, power turret, and live tools. These auxiliary accessories are considered parts of the machinery. As this trend matures, vertical machining centers are now more highly customized than ever before, thus presenting brand new business model ecology, and sales personnel in machinery plants need to have a more comprehensive understanding of such changes.
The structure of the vertical machining center is vertically aligned, and the work piece is processed by the cutting tool moving vertically up or down on the vertical axis. In a 3 axis machine, it is usually the Z axis. In 4 axis or 5 axis machine tools, the A and B axis supports will be compensated more to achieve precise machining and cutting on the vertical axis.
Due to the effect of gravity, the vertical machining center will not have the same concentricity issue as the horizontal machining center, because the vertical chuck can firmly clamp the work piece on the work table, which is placed flat on the track supported base. The application of vertical machining center and horizontal machining center are different. With some distinguished features, engineers can tell the differences between the two machining center solutions.
In addition, power turrets are more often installed on horizontal machining centers. With the help of the powered turret, the cycle time is greatly shortened, which makes the production model more efficient, like a turning machines. The work pieces in the machining center are usually not circular, but other more complex profiles., because simple round work pieces can be processed more efficiently using a lathe with a powered turret.
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