The rapid development of social economy has also promoted the development of industrial enterprises towards the field of mechanical automation, and the realization of the goal of sheet metal machining automation is an important performance of the improvement of the degree of industrial development. Through the theoretical research and analysis of the development of sheet metal machining automation, it can provide theoretical support for the actual development, so as to promote the overall level of mechanical automation.

Sheet metal machining automation can be reflected from many aspects, CNC punching machine automation is sheet metal processing production, the more common automatic processing equipment, sheet metal production efficiency can be effectively improved, but also effectively ensure sheet metal processing production mechanization and automation.

From the main part of the automation point of view, CNC punching machine is a more critical part of sheet metal processing, but also the core basis of parts processing, through the three-box frame structure, so as to ensure its stability, the reliability of sheet metal processing components can be guaranteed, but also greatly reduce the error caused by processing. After the CNC punching machine is fixed, the traditional process technology can be improved through the application of automatic punching machine technology, and the efficiency of construction can be greatly improved under the replacement of automatic molds. In the specific application, the mold information is passed into the sheet metal punching machine equipment control center, and the processing can be automatically implemented. Sheet metal machining automation in the application of system software is also more important, mainly the use of CNC software control punch technology implementation.

The application of this software is relatively simple, and the accuracy of the application is also relatively high. This software is different from other software. In the comprehensive work, if one software fails, other software can work normally [5]. In the special mold application, combined with different punching technology types and sizes, different types and sizes of molds can be designed, and the overall work efficiency of sheet metal parts processing is improved by automated work.

The realization of the automation goal of sheet metal processing machinery can effectively improve the overall quality level of processing, and it has positive significance for the actual processing quality assurance by strengthening the scientific application of technology from many aspects. Through the research and analysis of sheet metal machining automation from various aspects, it is hoped that it can contribute to the actual development.