For industrial production and development, machinery design and manufacturing is a pillar industry, which has an important impact on the speed of the social economy, the quality of development, and the degree of transformation. In the mechanical design and manufacturing process, the application of various production and processing technologies and processes is endless, and the level of the mechanical manufacturing process to a certain extent directly affects the development of the manufacturing industry. At present, the machinery manufacturing process is integrating many new technologies and new equipment to realize the integrated application of technology. Through the integration and optimization of technology, the level of automation and intelligence is constantly improving, so the precision, speed, and automation of modern machinery manufacturing continue to improve. This positively affects the modernization, scale, and quality development of machinery manufacturing.

Modern mechanical design and manufacturing processing technology characteristics

1. Flexibility

Flexible production is one of the core features of modern industrial processing. Through the introduction of automation equipment such as industrial robots and digital machine tools, the rationality of the production process and the friendliness of human-machine interaction design have been improved. The application of flexible manufacturing units, systems a automated production lines effectively promotes the automated development of production and lays the foundation for the flexibility of mechanical production.

2. High precision

Precision is the primary goal of modern mechanical equipment and product manufacturing, and the market demand for the precision of modern mechanical products continues to rise. Through the application of automation and intelligent technology, it can realize the high-precision control of the whole production process, ensure the continuous improvement of product quality, and meet the growing demand for product quality in the modern market.

3. Strong correlation

In the production design of mechanical products, the focus is not only on process technology. The content of mechanical design and manufacturing technology has become an important factor affecting product sales and market feedback. Therefore, the close relationship between mechanical design market demand, and consumer demand is crucial to the development of enterprise business. To maintain a competitive advantage, enterprises need to improve the production technology level of mechanical products to better meet market demand.

4. Combination

To ensure the expected processing effect, the modern mechanical design and manufacturing process often need to combine a variety of production processes. An effective combination of information technology and manufacturing technology is a modern mechanical production enterprise commonly used. Through the combination of processes, can significantly improve the accuracy of production control, and promote the realization of the goal of precision machining.

Analysis of modern machinery manufacturing technology

1. Automated welding

Automated welding technology is a commonly used method in modern machinery manufacturing. In the automatic welding process, a certain amount of shielding gas will be generated around the arc, and these gases can protect the welding head and the surface of the workpiece to ensure the effective separation of the arc from the air. The use of shielding gas can reduce the influence of external air on the welding process, thus ensuring the full combustion of the welding arc.

Also included in automated welding technology is the gas welding process. This process combines a programmed program, which operates according to set standards, with better welding confinement, the ability to carry out heat preservation in a closed environment, the control of the tempering temperature for post-welding stress relief, and finally the completion of post-welding treatment after cooling. The control principle of automatic welding is to manage the parameters such as welding wire and welding arc through a PLC control system.

In addition, semi-automatic welding technology is also an important part of automatic welding. This type of welding process requires manual operation, and the melting depth can be up to 20mm or more on one side, usually without open beveling. The welding wire is fed by machinery and the operator is responsible for the movement of the welding arc, thus realizing the welding. In modern machinery manufacturing, more and more companies tend to use fully automated welding modes.

2. Automated calibration of rough-turning cylinders

Blank Turning Round Automation Calibration Principle is as follows: In the positive and negative electrode ends will be welded workpiece placed and connected to the power supply, and the contact parts of the welded workpiece will produce an “electric long effect” so that the surface of the weldment quickly melted. Subsequently, a certain amount of pressure is applied to realize the welding effect. To ensure reasonable fusion dimensions and to increase the strength of the welded joint, the PLC control system combined with the programming program can effectively control the welding current and welding time.

Taking a workpiece with a diameter of 55mm and a length of 2 meters as an example, the specific parameters of the workpiece can be inputted into the system, which automatically clamps the blank on the chuck for alignment. Next, the turning tool is placed in the four-sided tool table and clamped after being centered by the top center. Alignment is done according to the direction of the end face of the blank and its base. When the tool approaches the center of the blank, excess blank material is removed, after which the chuck is switched and the centers are replaced. Finally, the manufacturing process is automated by turning the tool table.

3. Intelligent manufacturing process of stud welding

In the modern mechanical design and manufacturing process, stud welding is a common welding method, which is mainly divided into two types of welding modes: energy storage type and arc pulling type. Among them, the energy storage type welding process has a small depth of fusion, which is suitable for thin plate welding; while the drawn arc type welding has a large depth of fusion, which is widely used in the field of heavy industrial production. This type of welding process is relatively simple and does not require operations such as drilling, bonding, or drilling holes, thus effectively avoiding gas and water leakage problems in the weldments.

In the intelligent production process, several sensors and regulators are integrated to enable intelligent monitoring of the production status. Depending on the specific parameters, the system uses a transformer for the step-down process and then converts the AC power to DC power via a rectifier bridge. In addition, bidirectional current tubes and charging resistors provide power support for the capacitors. The application of intelligent technology in the smart chip enables the energy storage capacitor to effectively release the power to fulfill the automated welding task. This intelligent production process improves the precision and efficiency of welding and promotes the progress of the industry.

Application of modernized mechanical design and manufacturing precision processing technology

At present, the domestic market economy is developing relatively fast, and mechanical production enterprises should adapt to the growing market demand for mechanical products and continuously improve the precision of manufacturing and processing. Therefore, the relevant enterprises should grasp the needs of market-oriented development, modernization, and development-oriented, explore the application of precision machining technology in mechanical design and manufacturing, promote the continuous improvement of mechanical design and manufacturing quality, and accelerate the healthy and steady development of enterprises.

1. Cutting technology

In the previous mechanical manufacturing processing, cutting technology is used to process the original material appropriately to ensure production accuracy. However, with the development of marketization, the demand for machining accuracy of mechanical products has been increasing, and traditional cutting technology has made it difficult to meet these demands. Therefore, to ensure precise mechanical design and production, it is necessary to break through the limitations of traditional cutting technology and reduce the impact of cutting tools on the processing of machine tool workpieces.

Comparison of precision cutting technology and traditional cutting technology

Precision cutting technology is a modern cutting technology. With the continuous progress of machine tool technology, the cutting speed has reached tens of thousands of revolutions per minute. The use of precision cutting technology can reduce the impact of the tool on the machine tool in mechanical production, thus ensuring the accuracy of workpiece processing. At the same time, the combination of cutting technology and modern information systems can realize the effective control of the cutting process, thus improving cutting accuracy.

In mechanical manufacturing, the use of cutting tools is key to the control of workpiece processing accuracy. Modern parts finishing technology can not only ensure that the workpiece processing accuracy reaches the standard but also promote the automation of the overall production process. This is essential to improve the efficiency of workpiece handling in machining.

Considering the space constraints in a machining plant, boosting productivity can be challenging. Therefore, shortcomings in traditional machining can be remedied by optimizing the axial surface of the part, improving surface smoothness, and using CNC polishing machine equipment.

In mechanical manufacturing processing, it is critical to select the right technology to support production and ensure processing quality. In addition to making a good choice and application of workpiece processing technology, it is also necessary to pay attention to the precision control of the processing process. At the same time, combined with the quality standards and process requirements of workpiece parts processing, to ensure that the production and processing personnel are technically sound, to ensure the quality of production and processing.

2. Grinding technology

Grinding technology has been widely used in the production and processing of silicon wafers. Specifically, the surface roughness of the silicon wafer needs to be controlled at 0.1~0.2 microns, and the details of the appearance are adjusted through polishing treatment to ensure that the production requirements are met. With the continuous improvement of the precision requirements of modern mechanical production, traditional grinding technology has made it difficult to meet the increasing demand for product precision. Therefore, precision grinding technology has gradually been introduced into the mechanical production and processing process and plays an important role in modern mechanical processing.
At present, the grinding technology commonly used in mechanical processing includes:

• Flow pressure type suspension grinding technology
• Mechanochemical grinding technology
• Elastic emission grinding technology

Ultra-precision grinding technology is different from traditional grinding technology in that it changes the traditional mode of grinding with direct contact with the workpiece and avoids the unfavorable effects of grinding equipment on the surface and structure of the workpiece. This method ensures the precision of grinding to a greater extent, effectively reduces the processing roughness problem on the surface of the workpiece, and ensures that the quality of mechanical products meets the requirements. As shown in Figure, it is the structure of an ultra-precision grinding experimental system.

 Structure of ultra-precision grinding experiment system

By constructing the ultra-precision grinding experiment system, the workpiece avoids direct contact with the grinding tool during the grinding process, thus making the processing more accurate and reliable. The finished workpiece surface is not affected by friction and external force, which has a positive effect on improving the quality of workpiece processing.

3. Micromechanical technology

Compared with the traditional mechanical type, micro-mechanical technology has faster response speed and simpler operation, which is widely used in the field of production and processing, with high processing accuracy and significant application advantages. At present, the application of this technology in piezoelectric components is more common, as the core technology component of the microdrive is composed of electrostatic motors. Micromechanical products are usually small in specification, but their information-capturing ability is very powerful.

The processing and manufacturing of microelectronic components and parts are becoming increasingly important in mechanical components such as profitability detection and rate of change of speed detection. Micro-mechanical technology has extremely high requirements for precision, and it is necessary to cooperate with the use of relevant control technology and transmission technology to realize the synergistic effect of technology and ensure that the accuracy of mechanical processing meets the standard.

At present, the application of micromechanical technology in modern mechanical design and manufacturing processing is increasing. Through this technology, the overall manufacturing precision of mechanical products has been greatly improved to ensure that mechanical products better meet market demand, while also enhancing the market competitiveness of related machinery manufacturing and processing enterprises in the peer group.

Conclusion

Modern mechanical design and manufacturing and the application of precision machining technology to ensure the production and processing of mechanical products is an important guarantee of quality, but also to improve product quality and economic efficiency of the key. This paper analyzes several types of processes commonly used in the manufacture of mechanical products and discusses the application of precision machining technology in machinery manufacturing.

Of course, there are many other types of precision machining technology, the integration of these technologies into mechanical design and manufacturing is an important trend in the development of mechanical processing, but also to enhance the competitiveness of products is an inevitable requirement. Therefore, the relevant machinery manufacturing enterprises need to continuously improve the degree of attention to technology, the integration of high-quality production and manufacturing processes, and precision machining technology, to promote the level of manufacturing and processing quality of their mechanical products continue to improve.