In general, milling machines are classified into two major configurations - vertical and horizontal boring equipment. They are also distinguished depending on the number of the machine’s axes of motion. In the vertical configuration, the spindle of the milling machine is oriented vertically, thus the name. The same holds true in the case of a horizontal milling machine with a spindle that is oriented horizontally. In addition, horizontal boring equipment utilizes arbors for added stability and support during its boring operation. It also has support capabilities such as straddle milling which are necessary to accommodate various cutting tools.
Regardless of the configuration, though, the controls for both milling machines are reliant on the specific type of machine used. For instance, there are some machines that are capable of lowering and raising the spindle while moving the work table in lateral motion. Conversely, there are also machines with work tables moving both ways and even rotationally while the spindle remains stationary. It is therefore important when choosing between vertical and horizontal boring equipment, major considerations have to be taken into account. These include part’s size and shape, and the number of surfaces that require boring. It means die sinking application would be suitable for the vertical boring machine while heavier parts are more suitable for the horizontal boring machine.
Moreover, the machine tool, the work table or both of them can be dynamic, depending on the type of boring machine used. In a typical setup, moving work table moves along two axes (XY) but they can also move both up and down when necessary adjustment is needed for the depth of the cut. The same applies when swiveling along the axes for additional range of cutting. If your horizontal boring equipment application calls for dynamic tooling, there are machine tools that allow the entire circumference of the tool to cut into the workpiece, making it more versatile in boring parts.
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