Manhart How to improve the machining accuracy of CNC bending machines?

**How to improve the machining accuracy of CNC bending machine**
1、 Introduction
As a key equipment for modern metal sheet processing, the machining accuracy of CNC bending machines directly affects the quality and production efficiency of products. Therefore, improving the machining accuracy of CNC bending machines has become an important goal pursued by enterprises. This article will explore how to improve the machining accuracy of CNC bending machines from the aspects of controlling the depth of convex molds, compensating for deformation, fine-tuning molds, measuring sheet thickness, angle measurement and compensation, personnel training, and maintenance and upkeep.
2、 Control the depth of the convex mold
The depth of the punch is one of the important factors affecting the bending angle. In order to accurately control the depth of the punch, the following measures need to be taken:
1. Accurately set the depth value of the punch to ensure that it matches the bending requirements of the workpiece.
2. Regularly inspect the depth measurement system of the punch to ensure its accuracy and reliability.
3. Adopting advanced control algorithms and sensor technology to achieve real-time monitoring and automatic adjustment of punch depth.
3、 Compensate for deformation
During the bending process, the workpiece may undergo certain deformations, which can affect the machining accuracy. To compensate for this deformation, the following measures can be taken:
1. Analyze the deformation laws and characteristics of the workpiece, and develop reasonable compensation strategies.
During the bending process, adjust the depth of the punch and processing parameters in real time according to the deformation of the workpiece.
3. Use compensation devices or software functions to automatically compensate for workpiece deformation.
4、 Fine tuning of molds
The accuracy and condition of the mold have a significant impact on the machining accuracy. In order to maintain the accuracy and stability of the mold, the following fine-tuning operations are required:
1. Regularly inspect the wear and deformation of the mold, and promptly replace or repair severely worn components.
2. When installing and replacing molds, ensure that the mold matches the accuracy of the equipment to reduce errors.
3. Use a dedicated mold fine-tuning device to make precise adjustments to the mold, ensuring that it matches the bending requirements of the workpiece.
5、 Thickness measurement of sheet metal
The thickness of the sheet metal is one of the key factors affecting the bending angle and machining accuracy. To accurately measure the thickness of the sheet metal, the following measures can be taken:
1. Use high-precision sheet thickness measuring tools to ensure the accuracy of the measurement results.
2. Measure the sheet metal multiple times before processing, and take the average as the actual thickness value.
3. Adjust processing parameters and punch depth in a timely manner according to changes in sheet metal thickness to ensure processing accuracy.
6、 Angle measurement and compensation
During the bending process, angle measurement and compensation are key steps in improving machining accuracy. To accurately measure and compensate for angle errors, the following measures can be taken:
1. Use high-precision angle measurement tools or sensors to ensure the accuracy of angle measurement results.
2. Real time measurement and monitoring of angles during the processing, timely detection and correction of angle errors.
3. Adjust the processing parameters and punch depth according to the size and direction of the angle error to achieve automatic compensation of the angle error.
7、 Personnel training
The skills and experience of operators have a significant impact on machining accuracy. In order to improve the skill level of operators, the following training is required:
1. Regularly provide skill training and theoretical knowledge learning for operators to improve their ability to operate and maintain CNC bending machines.
2. Encourage operators to participate in skill competitions and exchange activities, learn advanced operational skills and experience.
3. Establish a comprehensive skill evaluation and incentive mechanism to encourage operators to actively improve their skill levels.
8、 Maintenance and upkeep
The maintenance and upkeep of CNC bending machines are key measures to maintain their performance and accuracy. In order to carry out maintenance and upkeep work, the following measures can be taken:
1. Regularly conduct comprehensive inspections and maintenance of equipment to ensure its normal operation and accuracy stability.
2. Follow the maintenance and upkeep requirements in the equipment manual, regularly lubricate, clean, and tighten the equipment.
3. Establish sound equipment archives and maintenance records to facilitate tracing the historical condition and maintenance status of the equipment.
9、 Summary
Improving the machining accuracy of CNC bending machines requires starting from multiple aspects, including controlling the depth of the punch, compensating for deformation, fine-tuning the mold, measuring sheet thickness, angle measurement and compensation, personnel training, and maintenance and upkeep. Only by comprehensively considering these factors and taking corresponding measures can the machining accuracy and product quality of CNC bending machines be effectively improved.