The bending accuracy of CNC bending machines is influenced by many factors. The following will provide a detailed introduction to these main factors.
Firstly, the selection of materials has a significant impact on the bending accuracy of CNC bending machines. Different materials have different physical and mechanical properties, including elastic modulus, tensile strength, yield strength, and plastic deformation ability. For the same type of material, different thicknesses of sheet metal can also have an impact on bending accuracy. Thin sheets are prone to bending, therefore their accuracy is relatively high. Thicker sheets are more difficult to bend and prone to errors.
Secondly, the bending angle and radius of CNC bending machines are also important factors affecting bending accuracy. According to different bending angles and radii, CNC bending machines require different process settings. For small angle and small radius bending, higher bending accuracy requirements are usually proposed. In this case, higher precision CNC bending machines and process parameter adjustments are needed to ensure the accuracy requirements are met.
3、 The machine tool structure and tool device of CNC bending machines also have a significant impact on bending accuracy. The CNC bending machine adopts different machine tool structures, such as hydraulic machine tools, electric machine tools, etc., which can affect the rigidity and stability of the machine tool, thereby affecting the bending accuracy. The tool device is also crucial for controlling the bending force and angle. If the tool device is unstable or improperly adjusted, it will lead to errors in bending force or angle, thereby affecting bending accuracy.
4、 The bending molds used in CNC bending machines can also affect the bending accuracy. Bending molds are tools used to fix and shape sheets, and their design and manufacturing quality directly affect bending accuracy. If the mold design is unreasonable or the manufacturing accuracy is not high, it will lead to errors in the shape and size of the sheet metal, thereby affecting the bending accuracy. In addition, the wear, fatigue, and lifespan of the mold can also affect the bending accuracy.
5、 The technical level of CNC bending machine operators also has a significant impact on bending accuracy. Operators need to have good CNC programming and operation skills, understand the working principle and performance of CNC bending machines, be able to correctly set processing parameters and adjust the machine tool, and judge whether the bending accuracy of the workpiece meets the requirements. If the operator's technical level is not high or the operation is improper, the bending accuracy requirements cannot be guaranteed.
The maintenance and upkeep of CNC bending machines also have a direct impact on bending accuracy. Regular inspection and maintenance of various components of the CNC bending machine, timely detection and repair of possible faults and problems, can ensure the stability and accuracy of the machine tool. In addition, lubrication, cleaning, and regular calibration of CNC bending machines are also key to maintaining bending accuracy.
Overall, the bending accuracy of CNC bending machines is influenced by multiple factors such as material selection, bending angle and radius, machine tool structure and tool device, bending mold, operator's technical level, and machine tool maintenance. At the same time, these factors are also interrelated and influence each other. Therefore, in practical applications, it is necessary to comprehensively consider these factors and take corresponding measures to improve the bending accuracy of CNC bending machines.