CNC milling processing has a very important position in the machining industry, so what are its characteristics, and what types of parts are suitable for CNC milling processing?
Features of CNC milling
1. Flexible And Versatile
CNC milling machines and machining centers are suitable for the processing of multiple types of workpieces with different structures and shapes, and can complete drilling, boring, reaming, milling planes, milling bevels, milling grooves, milling surfaces (cams), tapping, etc.
2. High Machining Accuracy
CNC milling machines and machining centers have high machining accuracy, and under normal circumstances, the accuracy of the workpiece can be guaranteed. In addition, CNC machining also avoids operating errors by operators, and the size of the same batch of processed parts has good dimensional identity, which greatly improves product quality.
3. High Production Efficiency
CNC milling machine and machining center have the functions of milling machine, boring machine and drilling machine, so that the process is highly concentrated, which greatly improves the production efficiency and reduces the workpiece clamping error. The spindle speed of the CNC milling machine realizes infinitely variable speed, which is conducive to selecting the best cutting amount. The CNC milling machine has fast forward, fast rewind and fast positioning functions, which can greatly reduce the maneuvering time.
Secondly, the CNC milling machine has the functions of a milling machine, a boring machine, and a drilling machine, which makes the process highly concentrated and greatly improves the production efficiency. In addition, the spindle speed and feed speed of the CNC milling machine are continuously variable, so it is helpful to choose the best cutting amount
4. It Can Process Complex Shapes
In addition to milling the surface of various parts that can be milled by ordinary milling machines, it can also mill plane curve contours and spatial surface contours that ordinary milling machines cannot mill. This is because CNC machine tools have multiple feed coordinates. The characteristics of axis linkage.
5. Reduce The Labor Intensity Of The Operator
The CNC milling machine automatically completes the processing of parts according to the pre-programmed processing procedures. In addition to operating the keyboard, loading and unloading tools, workpieces and intermediate measurements and observing the operation of the machine tool, the operator does not need to perform heavy and repetitive manual operations, which greatly reduces Labor intensity.
Parts Suitable For CNC Milling
1. Complex Shapes Of Machined Parts
Compared with ordinary milling machines, CNC milling machines have the characteristics of high machining accuracy, complex shapes of machined parts, and wide machining range. According to the characteristics of CNC milling machines, the content suitable for CNC milling machine processing mainly includes the following categories: Curved contours or curved surfaces and other complex structures: the plane curve contour of the workpiece, which means that the part has internal and external contours as complex curves, and the processed surface is parallel or perpendicular to level. In the CNC milling process, generally only need to use the two-coordinate linkage of the three-coordinate CNC milling machine to process them.
The curved surface of the workpiece generally refers to the surface where the points on the surface change in the three-dimensional space coordinates. It is generally designed by a mathematical model. During processing, the milling cutter and the processing surface are always in point contact. The processing of curved surface parts generally uses a three-coordinate CNC milling machine, which often requires the help of a computer to program and process.
2. The Structure Of Workpieces That Are Difficult To Process On Ordinary Milling Machines:
For the parts that are difficult to observe and control with a large number of sizes, scribing and detection, ordinary milling machines are suitable for CNC milling machine processing, and CNC milling machine processing should be selected.
3. Ordinary Milling Machine Can’t Reach Precision And Accuracy
When processing on an ordinary milling machine, it is difficult to ensure the dimensional accuracy, shape and position accuracy and surface roughness of the workpiece, and CNC milling machine should be selected for machining.
4.Parts With Good Consistency Requirements:
In mass production, because the positioning accuracy and repeat positioning accuracy of the CNC milling machine itself are high, it can avoid various errors caused by human factors in the processing of ordinary milling machines, so the CNC milling machine is easy to guarantee the success The consistency of batch parts improves the machining accuracy and the quality is more stable.