In modern manufacturing, die casting technology is favored for its high efficiency, accuracy and repeatability. However, to ensure the desired accuracy and consistency of the die casting product, the precise calibration of the die casting machine control system is essential. We will explore in depth how to calibrate the control system of die casting machine to ensure its accuracy and stability, in order to help related enterprises improve production efficiency and product quality.

Die-casting machine as the core equipment of precision casting, the accuracy and stability of its control system directly affect the quality of products and production efficiency. Therefore, regular and correct calibration procedures are key steps to ensure machine performance.

1、The importance of calibration of control systems

Accuracy: Calibration ensures consistency between the commands issued by the control system and the actual actions of the mechanical components, reducing errors.
Stability: Stable system response can ensure the consistency of product quality in the long-term production process.
Failure prevention: Timely calibration helps detect potential failures and wear, leading to early maintenance.

2、Preparation before calibration

Environmental inspection: Ensure that the environment around the die casting machine is stable, no vibration, and the temperature and humidity are appropriate.
Equipment inspection: Check whether the power supply and air supply are stable, and whether the emergency stop device is effective.
Personnel training: Operators should be familiar with the calibration process and safety specifications.

3、Detailed explanation of calibration process

Zero calibration: Determine the mechanical origin to provide a reference for subsequent motion control.
Stroke calibration: Adjust maximum and minimum stroke limits to prevent mechanical collisions or incomplete molding.
Speed and pressure calibration: Set the appropriate speed and pressure parameters to meet the requirements of different castings.
Temperature calibration: Ensure that the temperature sensors of the heating and cooling system are accurate to ensure the correct temperature of the liquid metal.
Closed-loop control system testing: Verify the accuracy of position, speed and pressure feedback systems.
Repeatability test: Run the same program multiple times to test the consistency of the output.

4、Check and adjust after calibration

Functional testing: Perform comprehensive functional testing to ensure that all components are working properly.
Sample production: A small number of samples are produced to evaluate dimensional accuracy and surface quality.
Data logging: Data changes before and after calibration are recorded to provide reference for future optimization.

5、Calibration cycle and maintenance

Periodic calibration: According to the production volume and machine usage to establish the calibration cycle.
Continuous monitoring: Use data analysis tools to continuously monitor system performance and detect deviations in time.
Preventive maintenance: Implement a preventive maintenance plan based on calibration results to extend equipment life.

6、Conclusion

The calibration of a die casting machine control system is a delicate and critical process that requires technicians to have not only solid expertise, but also a rigorous working attitude. By following the above process, companies are able to ensure that the control system of their die casting machines is always in the best condition, resulting in the production of high-quality castings and market competitiveness.