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Español Specific evaluation method for machining accuracy of twist axis CNC bending machines
As an important equipment in modern sheet metal processing, the CNC bending machine with torsion axis has a direct impact on product quality and production efficiency due to its machining accuracy. Therefore, it is crucial to accurately evaluate the machining accuracy of the torsion axis CNC bending machine. The following will provide a detailed introduction to the specific evaluation methods for the machining accuracy of twist axis CNC bending machines, including bending angle accuracy, bending roundness accuracy, bending dimension accuracy, rotational deflection measurement, angular vibration measurement, and axial runout measurement.
1. Bending angle accuracy
The accuracy of bending angle is one of the important indicators for measuring the machining accuracy of a torsion axis CNC bending machine. When evaluating, angle measuring tools (such as angle rulers, laser rangefinders, etc.) can be used to measure the actual angle on the bent workpiece and compare it with the preset angle. The smaller the angle deviation, the higher the accuracy of the bending angle.
2. Bending roundness accuracy
Bending roundness accuracy refers to the degree of deviation between the circular arc shape of the bent workpiece at the bending point and the theoretical circular arc shape. When evaluating, roundness measuring tools (such as a roundness meter) can be used to measure the workpiece and compare it with the theoretical arc. The smaller the roundness deviation, the higher the accuracy of bending roundness.
3. Bending dimension accuracy
Bending dimension accuracy refers to the degree of deviation between the length, width, and other dimensions of the bent workpiece and the preset values. When evaluating, measuring tools such as calipers and laser rangefinders can be used to measure the workpiece and compare it with the preset dimensions. The smaller the size deviation, the higher the accuracy of the bending dimension.
4. Measurement of rotational deflection
Rotation deviation refers to the degree to which the rotational motion of the worktable or spindle of a bending machine deviates from the theoretical trajectory during operation. When evaluating, a yaw meter can be used to measure the rotational motion of the workbench or spindle, and analyze the amplitude and frequency of the yaw. The smaller the amplitude of the swing and the lower the frequency, the higher the accuracy of the rotational swing.
5. Angular vibration measurement
Angular vibration refers to the phenomenon of periodic changes in the angular velocity of the spindle or worktable during the operation of a bending machine. When evaluating, a vibration measuring instrument can be used to measure diagonal vibrations and analyze the amplitude and frequency of vibrations. The smaller the amplitude and frequency of angular vibration, the higher the accuracy of angular vibration.
6. Axial runout measurement
Axial runout refers to the displacement change of the main spindle or worktable in the axial direction during the working process of a bending machine. When evaluating, a runout meter can be used to measure axial runout and analyze the amplitude and frequency of the runout. The smaller the amplitude of axial runout and the lower the frequency, the higher the accuracy of axial runout.
summary
The above is the specific evaluation method for the machining accuracy of the torsion axis CNC bending machine, covering aspects such as bending angle accuracy, bending roundness accuracy, bending dimension accuracy, rotational deflection measurement, angular vibration measurement, and axial runout measurement. By measuring and analyzing these indicators, the machining accuracy of the torsion axis CNC bending machine can be comprehensively evaluated, providing important basis for optimizing equipment parameters, improving product quality and production efficiency.
