How does Manhart (Guangdong) CNC Machine Tool Co., Ltd. determine whether the accuracy of CNC punching machines meets the requirements?

To determine whether the accuracy of a CNC punching machine meets the requirements, the following key indicators can be used for testing:
1. * * Punching accuracy * *: including the accuracy of punching diameter and punching position. Generally speaking, for holes smaller than or equal to 10mm, their diameter accuracy should be within ± 0.01mm; The diameter accuracy of holes larger than 10mm should be within ± 0.02mm. The standard range of punching position accuracy is generally within ± 0.05mm. Beyond these ranges, it may be necessary to check and adjust the position of the workbench and mold.
2. * * Geometric accuracy * *: The difference between the surface shape, position, size, and theoretical position of the workpiece during the working process of an exponential controlled punch press. The commonly used geometric accuracy detection methods include parallelism detection, verticality detection, straightness detection, etc., which can be measured and compared by using measuring instruments such as projectors, coordinate measuring machines, etc.
3. * * Motion accuracy * *: Refers to whether the position reached by the CNC punch during the motion process is accurate. This includes position error detection, repeated positioning accuracy detection, speed error detection, etc. Measurement equipment such as laser interferometers and laser drift meters can be used for measurement.
4. * * Dimensional accuracy * *: Refers to the deviation between the size of the product processed by the punching machine and the design requirements during stamping processing. Usually, the dimensional accuracy of a punch press is required to be within 0.02mm.
5. * * Repetitive Precision * *: Refers to the deviation between the dimensions of the products produced by the punching machine during the continuous stamping process. The repeatability accuracy of punching machines is usually required to be within 0.02mm.
In addition, it is necessary to consider factors such as the parallelism of the slider stroke on the task table, the flatness of the punch table and the bottom surface of the slider. These factors will all affect the overall accuracy and processing effect of CNC punching machines.
When conducting accuracy testing, it is necessary to strictly follow the standards and specifications provided by the manufacturer, and use appropriate measuring equipment and tools. If it is found that the accuracy of the punching machine does not meet the requirements, timely debugging, maintenance or replacement of relevant components should be carried out to ensure its long-term stable operation and meet processing requirements.
Please note that specific accuracy requirements and testing methods may vary depending on the model, manufacturer, and usage environment of the CNC punching machine. Therefore, in practical operation, reference should be made to the technical documents of CNC punching machines and relevant information provided by manufacturers to ensure the accuracy and effectiveness of accuracy testing.