The structure of a CNC vertical machining center refers to a machining center in which the spindle and the worktable are in a vertical state. The vertical machining center integrates the characteristics and functions of various CNC machine tools. The vertical machining center is developed from the basic CNC milling machine, and also integrates the characteristics and functions of CNC milling machines. Its structure is basically the same, and the processing technology is somewhat similar. The difference between the vertical machining center and the CNC milling machine is that the machining center has an automatic tool changer and a tool magazine, while the CNC milling machine does not have this function. The vertical machining center can complete multiple processes such as milling, boring, drilling, tapping and threading by clamping the workpiece at one time. Moreover, the vertical machining center can achieve at least three-axis two-linkage, and the general vertical machining center can achieve three-axis three-linkage. Some can perform five-axis and six-axis control. The more control axes, the wider the processing range and the higher the price. Let’s make a comparative explanation of the advantages and disadvantages of the vertical machining center below!
Advantages of vertical machining center
- Due to the simple structure of vertical machining center, it is very easy to clamp the workpiece. Universal clamps, such as flat-nose pliers, pressure plates, dividing heads, rotary tables, etc., can be used to clamp the workpiece. The clamping positioning and repeated positioning operations of the workpiece are very convenient and simple.
- The structural design of the vertical machining center is conducive to cooling, because the coolant is sprayed from top to bottom and can be directly sprayed onto the high-temperature workpiece and tool during processing.
- The structure of the vertical machining center is relatively simple, and the running trajectory of the tool can be observed. It is also convenient to debug, observe and modify parameters. It is also convenient to measure the workpiece. When problems are found, the machine can be stopped immediately for processing and modification.
- The vertical machining center is easy to remove chips when machining flat workpieces. The generated chips are directly washed away by the sprayed coolant, avoiding the residual chips scratching the surface of the workpiece during cutting.
- Compared with the horizontal machining center, the structure of the vertical machining center is simpler, occupies a smaller area, and is cheaper.
Disadvantages of vertical machining centers
- Since the spindle and worktable of the vertical machining center are parallel, the workpiece to be processed has a certain height limit. Not only that, the fixture and tool also have certain size limits, and the robot takes up a lot of space when changing tools.
- From the above disadvantages, the possibility of vertical machining center box-type workpieces is small, and the range of processing box-type workpieces is relatively small. This is also one of the biggest disadvantages of vertical machining centers.
