What are the techniques for high-precision machining on mechanical power presses?

With the continuous development of modern manufacturing industry, the demand for machining accuracy of mechanical power press is increasing day by day. High precision machining can not only improve product quality, but also increase production efficiency and reduce costs. This article will delve into the techniques of high-precision machining on mechanical power presses, in order to provide useful reference and inspiration for manufacturing practitioners.

1. Equipment selection and debugging

1. Choose high-precision punching machines: Choose high-speed, high-precision CNC punching machines or specialized mechanical power press, which usually have better rigidity and stability, and can meet the needs of high-precision machining.

2. Debugging equipment: Before starting processing, carefully debug the mechanical power press, including adjusting the mechanical parts and verifying the CNC program, to ensure that the equipment is in the best working condition.

2. Mold design and selection

1. High precision molds: Use high-precision and wear-resistant molds to ensure dimensional and shape accuracy during the stamping process.
2. Reasonable mold clearance: Based on the thickness and hardness of the processed material, set the mold clearance reasonably to avoid material strain or excessive mold wear.

3. Mold maintenance and upkeep: Regularly clean, lubricate, and inspect molds to promptly detect and address mold wear or damage issues.

3. Processing parameter settings

1. Optimize stamping speed: Select the appropriate stamping speed based on the characteristics of the processing material and mold to improve the processing efficiency and accuracy of the mechanical power press.
2. Adjust the punching force: Based on the deformation resistance of the material and the load-bearing capacity of the mold, adjust the punching force reasonably to ensure a stable punching process and that the material is not easily deformed.

3. Control stamping depth: Accurately control stamping depth to avoid material damage or mold damage caused by excessive stamping.

4. Process monitoring and adjustment

1. Real time monitoring: During the machining process, closely monitor the dimensional accuracy and surface quality of the stamped parts, and promptly identify and address any issues.
2. Flexible adjustment: Based on the actual situation during the machining process, flexibly adjust parameters such as stamping speed, stamping force, and stamping depth to ensure machining accuracy and stability.

3. Regular calibration: Regularly calibrate mechanical power press and molds to ensure that the accuracy of the equipment and the dimensional accuracy of the molds meet the requirements.

5. Enhancement of operator skills

1. Professional training: Provide professional training to operators to improve their proficiency in operating mechanical power press, using molds, and setting processing parameters.
2. Experience sharing: Encourage operators to share their machining experience and skills to jointly improve machining accuracy and efficiency.
3. Safety awareness: Strengthen the safety awareness training of operators to ensure strict compliance with safety operating procedures during the processing.
In summary, high-precision machining on mechanical power presses requires comprehensive consideration of equipment selection and debugging, mold design and selection, machining parameter settings, machining process monitoring and adjustment, and operator skill enhancement. By mastering these techniques and suggestions, machining accuracy and efficiency can be significantly improved, meeting the needs of high-precision machining.