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3 Minutes to Understand the Characteristics of CNC Milling Machine

3 Minutes to Understand the Characteristics of CNC Milling Machine

2022-07-01 15:12:40

The shape of the machined surface of the milling machine is generally composed of straight lines, arcs, or other curves. Ordinary milling machine operators according to the requirements of the drawing. Constantly changing the relative position between the tool and the workpiece, and then cooperating with the selected milling cutter speed, the tool can cut the workpiece, and various shapes of workpieces can be processed.

 

CNC machining is to divide the motion coordinates of the tool and the workpiece into the smallest unit, that is, the smallest displacement. According to the requirements of the workpiece program, the numerical control system moves each coordinate by several minimum displacements, to realize the relative movement of the tool and the workpiece to complete the machining of the parts.

 

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Features of CNC milling machine milling

 

In addition to the characteristics of ordinary milling machine processing, CNC milling has the following characteristics:

 

  • The parts have strong adaptability and flexibility and can process parts with particularly complex contours or difficult-to-control dimensions, such as mold parts, shell parts, etc.

 

  • It can process parts that cannot be processed by ordinary machine tools or are difficult to process, such as complex curved parts described by mathematical models and three-dimensional space surface parts;

 

  • Parts that need to be processed in multiple processes after one clamping and positioning can be processed.

 

  • High processing precision, stable and reliable processing quality, the pulse equivalent of the numerical control device is generally 0.001mm, and the high-precision numerical control system can reach 0.1μm. In addition, the numerical control processing also avoids the operator's operating errors.

 

  • The production automation is high, which can reduce the labor intensity of the operator. Conducive to production management automation.

 

  • High production efficiency. CNC milling machines generally do not need to use special process equipment such as special fixtures. When replacing workpieces, it is only necessary to call the processing programs, clamping tools, and adjustment tool data stored in the CNC device, thus greatly shortening production. cycle. Secondly, the CNC milling machine has the functions of a milling machine, boring machine, and 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 infinitely variable, so it is beneficial to choose the best cutting amount.

 

Processing content suitable for CNC milling

 

Compared with ordinary milling machines, CNC milling machines have the characteristics of high machining accuracy, complex shapes of machined parts, and wide machining ranges. According to the characteristics of CNC milling machines, the contents suitable for CNC milling machine processing mainly include the following categories: Complex structures such as curved contours or curved surfaces: the plane curve contour of the workpiece, which refers to the complex curve of the inner and outer contours of the part, and the processed surface is parallel or perpendicular to the level. When CNC milling, generally only need to use the two-coordinate linkage of the three-coordinate CNC milling machine to process them.

 

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