The processing accuracy of the metal laser cutting machine ultimately depends on the accuracy of the metal laser cutting machine and CNC machine tool to ensure the accuracy of the CNC machine tool, including geometric accuracy, positioning accuracy, repeat positioning accuracy and cutting accuracy. This is the main factor that affects the accuracy of metal laser cutting.
(1) Geometric accuracy, also known as static accuracy. This is a comprehensive reflection of the geometric shape of the metal laser cutting machine CNC machine tool after the assembly of the wrong key components. The CNC machine tools used in the test and the ordinary machine tools are tested with similar test methods to test the higher requirements and the geometric accuracy test.
(2) Positioning accuracy. It is a metal laser cutting machine, and the position accuracy that can be achieved by the CNC machine tool in determining the moving axis of the end point. Errors called positioning errors. Positioning errors include servo systems, detection systems, water supply systems and other errors, including moving parts and geometric errors in the orbit. This will directly affect the machining accuracy of the parts. Based on the positioning accuracy of the measured value, the machine can be determined to realize the machining accuracy of the automatically processed workpiece.
(3) Refers to the consistency of the position accuracy of running the same code multiple times, in metal laser cutting machines, CNC machine tools. The characteristics of the servo system, repeat positioning accuracy, rigidity and friction characteristic factors, under normal circumstances, the chance of repeat positioning accuracy error affects the feed gap of the system is a normal distribution, it will affect the consistency of the number of parts processing is a very important The accuracy index.
Cutting precision metal laser cutting machine, machine tool, geometric accuracy and positioning accuracy in a comprehensive inspection of the cutting conditions.
Metal laser cutting machine CNC systems and machine tool manufacturers can guarantee the accuracy during the manufacturing process and the machine installation and commissioning process, but the positioning accuracy and repeat positioning accuracy of CNC machine tools are relatively large with the use and changes of machine tools, so machines that are used regularly, Or test the positioning accuracy and repeat positioning accuracy when necessary.
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