How to Calibrate the Angle Measurement in an Electro – hydraulic Servo CNC Bending Machine

As a supplier of Electro – hydraulic Servo CNC Bending Machines, I understand the crucial role that accurate angle measurement plays in the performance of these machines. In the bending process, a precise angle can ensure the quality of the final product, which is essential for various industries such as automotive manufacturing, aerospace, and general metal fabrication. This blog post aims to guide you through the process of calibrating the angle measurement in an electro – hydraulic servo CNC bending machine. Electro-hydraulic Servo CNC Bending Machine

Understanding the Need for Calibration

Before delving into the calibration process, it’s important to understand why calibration is necessary. Over time, various factors can affect the accuracy of angle measurement in a bending machine. Mechanical wear and tear, electrical interference, and environmental factors such as temperature and humidity can all cause deviations in the measured angles. If left uncalibrated, these inaccuracies can lead to defective products, increased waste, and potential safety hazards. Therefore, regular calibration is essential to maintain the quality and efficiency of the bending process.

Pre – calibration Checks

Machine Inspection

The first step in the calibration process is to conduct a thorough inspection of the bending machine. Check for any visible signs of damage or wear, such as loose bolts, worn – out bearings, or hydraulic leaks. Ensure that all moving parts are lubricated and functioning smoothly. Any mechanical issues should be addressed before proceeding with the calibration, as they can significantly affect the accuracy of the angle measurement.

Sensor Inspection

The angle measurement in an electro – hydraulic servo CNC bending machine is typically performed using sensors. Inspect these sensors for any signs of damage or malfunction. Check the wiring connections to ensure they are secure and free from corrosion. Additionally, verify that the sensors are properly installed and aligned with the bending tool. If any issues are detected with the sensors, they may need to be replaced or repaired.

Software and Controller Checks

The bending machine’s software and controller are responsible for interpreting the sensor data and controlling the bending process. Check the software version to ensure it is up – to – date, as software updates often include improvements to the angle measurement algorithms. Also, verify that the controller settings are correctly configured for the specific bending operation. Any incorrect settings can lead to inaccurate angle measurements.

Calibration Procedures

Manual Calibration

Manual calibration is a basic but effective way to calibrate the angle measurement in a bending machine. First, select a calibrated reference angle gauge. This gauge should have a high level of accuracy and be traceable to national or international standards. Place the reference angle gauge on the bending tool or the workpiece support.

Next, use the machine’s control panel to set the bending angle to a known value, such as 90 degrees. Operate the bending machine to make a bend at the specified angle. Then, measure the actual angle of the bend using the reference angle gauge. Compare the measured angle with the set angle. If there is a deviation, use the machine’s calibration menu to adjust the angle measurement settings. Repeat this process several times at different angles to ensure the accuracy of the calibration across the entire range of bending angles.

Automatic Calibration

Many modern electro – hydraulic servo CNC bending machines are equipped with automatic calibration features. Automatic calibration uses built – in algorithms and sensors to perform the calibration process with minimal operator intervention. To initiate automatic calibration, access the machine’s calibration menu and select the automatic calibration option.

The machine will then perform a series of self – tests and adjustments. It may move the bending tool to a series of pre – defined angles and measure the actual angles using internal sensors. Based on the comparison between the set angles and the measured angles, the machine will automatically adjust the angle measurement settings. The advantage of automatic calibration is its speed and accuracy, as it can quickly compensate for any deviations in the angle measurement.

Advanced Calibration Techniques

In some cases, more advanced calibration techniques may be required to achieve the highest level of accuracy. For example, laser – based measurement systems can be used to measure the angles with extremely high precision. These systems work by projecting a laser beam onto the workpiece and analyzing the reflected light to determine the angle.

Another advanced technique is the use of interferometry. Interferometry uses the interference patterns of light waves to measure small changes in distance and angle. By integrating these advanced measurement systems into the bending machine, it is possible to achieve angle measurements with an accuracy of a few arc – seconds.

Verification and Documentation

After completing the calibration process, it is essential to verify the accuracy of the angle measurement. Make a series of test bends at different angles and measure the actual angles using a calibrated reference gauge. Compare the measured angles with the set angles to ensure that the deviation is within the acceptable tolerance range.

It is also important to document the calibration process. Keep a record of the calibration date, the calibration method used, the measured angles, and any adjustments made. This documentation can be used as evidence of compliance with quality standards and can be helpful for future calibrations and troubleshooting.

Conclusion

Calibrating the angle measurement in an electro – hydraulic servo CNC bending machine is a critical process that ensures the quality and accuracy of the bending operations. By following the steps outlined in this blog post, you can effectively calibrate the angle measurement in your bending machine and maintain its optimal performance.

Pure Electric Servo CNC Bending Machine If you are in the market for an electro – hydraulic servo CNC bending machine or need further assistance with calibration and maintenance, we are here to help. Our team of experts has extensive experience in the field and can provide you with the best solutions for your bending needs. Feel free to contact us to discuss your requirements and explore how our machines can improve your production process.

References

ISO 9001:2015 Quality management systems — Requirements
Kurt, M. (2018). Handbook of Metal Forming Technology. CRC Press.
Schwarz, R. (2019). CNC Programming Handbook. Industrial Press Inc.

Tianjin Wujia CNC Machine Tool Co., Ltd.
Tianjin Wujia CNC Machine Tool Co., Ltd. is one of the most reliable manufacturers and suppliers of electro-hydraulic servo CNC bending machine in China. As we have world-leading production equipment and strong manufacturing capabilities, we warmly welcome you to wholesale advanced equipment at competitive price from our factory. For more cheap products, contact us now.
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