Academic papers of mechanical specialty

With the rapid development of modern industry, machinery has attracted more and more attention and become one of the important research topics. The following are my academic papers on mechanical engineering. Thank you for reading.

Academic Papers of Mechanical Specialty (1)

Analysis of mechanical design technology in mechanical manufacturing

With the development of society, great changes have taken place in life and mode of production. In terms of mechanical design and manufacturing, the working technology is also constantly improving. Mechanical design and mechanical manufacturing are inseparable. Mechanical design actually provides the theory and premise for mechanical manufacturing. Mechanical manufacturing carries out concrete practice and manufacturing on the basis of the designed mechanical scheme. But no matter what, technology is the key, especially the technology to be embodied and applied in mechanical design.

[Keywords:] mechanical manufacturing machinery design technology analysis

China Library Classification Number: TD353.5 Document Identification Number: A Document Number:1009-914x (2015) 36-0091-0/.

First, the basic understanding of mechanical design

1. 1 mechanical design status quo

With the development of social productive forces, mechanical design has gradually entered production activities, which provides a scientific theoretical basis for production activities. In the traditional mechanical manufacturing process, mechanical designers design products in the traditional way according to the original mechanical principles, and get the scheme data through simple design composition and static calculation and analysis. Therefore, the data needed for the design may lack accuracy and may bring unnecessary trouble to the mechanical manufacturing work. Compared with the traditional design concept, the mechanical design method of enhancing safety is more reliable, but there are also some shortcomings. In addition, the development of science and technology has also brought scientific and technological achievements to mechanical design, greatly overcoming the disadvantages of traditional design. The product development cycle and work efficiency have been greatly improved, the data required for design are more accurate, the design level has been greatly improved, and it has been widely recognized by the society, and the mechanical design results are more remarkable.

1.2 characteristics of mechanical design in China

1.2. 1 is widely used.

With the rapid development of science and technology in China, advanced machinery manufacturing technology plays an increasingly important role in machinery manufacturing and has been widely used. Any mechanical manufacturing is inseparable from the support of technology, and the combination of design and technology provides a strong backing for production.

1.2.2 is innovation.

In the process of mechanical design and manufacturing, any technology and equipment need to be constantly updated and created. In terms of mechanical design, the so-called innovation means that on the basis of the original excellent technology, more advanced technology is used as the driving force for development, continuous learning and progress are made, and more knowledge is used to fill the shortcomings in the existing work. Through innovation and development, we are committed to making the mechanical design scheme better, providing a better design scheme for mechanical manufacturing and improving the mechanization level.

1.2.3 has a wide target market.

In today's society, the development of any industry is mostly inseparable from the assistance of machinery. The wide application of machinery in all walks of life has led to the universality of the target market. Mechanical products may involve catering industry, parts processing industry and so on. Now mechanical design also appears in all walks of life, targeting a wide range of market targets, meeting the requirements of today's market competition, and at the same time enhancing market competitiveness, bringing broad development prospects for the mechanical design and manufacturing industry.

1.3 analysis of the development direction of China machinery manufacturing technology

Nowadays, China's machinery manufacturing technology is gradually moving towards the high end. According to the past experience, we can find that there are three main directions for the development of mechanical design technology: the first direction is the management of mechanical manufacturing, that is, a sound and standardized computer management system, so China's mechanical manufacturing industry should attach importance to the design direction and strengthen the computer management of mechanical manufacturing technology; In the process of designing technology development station in recent years, it will be found that the design of mechanical manufacturing requires more and more intelligent realization of modern mechanical products, such as the emergence of related design software and virtual design technology, which simulate mechanical products and display their experimental results in high-tech ways such as computer software screen display and data report. Next, the technology of mechanical manufacturing is becoming more and more mature, and it is gradually developing in the direction of precision machining and high precision machining, and the mechanical design technology is closer to the details.

Second, the analysis of mechanical design technology in mechanical manufacturing

2. 1 mechanical design scheme analysis

The design scheme of mechanical design is the key in design, which absolutely affects the actual effect and level of mechanical design products. In the process of designing the scheme, many small problems need to be discovered and solved patiently. In particular, we should pay attention to whether theory and practice can be effectively combined and implemented in the actual operation process. The scheme of mechanical design should consider two requirements. One is to meet the basic performance and functional requirements of the machine itself, and the other is to consider whether the workers can operate effectively, whether the workers can master the machine skillfully and whether they are familiar with the operation process. The main design steps of the mechanical design scheme include the following aspects:

2.2 Main technical design analysis of mechanical design

In the main technical design process of mechanical design, the main design occupies an important position. In the main technical design stage of mechanical design, we should first carefully check the design drawings, carefully analyze the data in the design drawings, and summarize the data by calculation. In addition, it is worth noting that the general plan and the local plan should be carefully compared and analyzed to ensure the unity of the general plan and the local plan. Secondly, every part of the main technical design of mechanical design should be strictly examined to ensure the design quality and avoid unnecessary troubles in manufacturing. If problems are found during the experiment, all links should be proofread in time.

2.3 Discussion on the development direction of mechanical design technology

2.3. 1 intelligence

Great changes have taken place in the development direction of modern mechanical products, and the development direction is more diversified, which brings more possibilities and increases the difficulty of mechanical design. Because the quality requirements of mechanical design are constantly improving, mechanical design has seized the opportunity in today's high-tech trend and provided a good environment for the development and creation of new technologies. Moreover, we have to admit that in today's scientific and technological situation, intelligence has gradually become an important development direction of modern mechanical product design. Intelligent products improve product performance, exquisite structure and other related functions, and improve the quality and level of mechanical design.

2.3.2 Systematization

Systematization is also one of the development directions of modern mechanical products. Modern mechanical product design pays more and more attention to systematization. In the design process, through systematic optimization of all parts, all parts can be effectively integrated to improve the overall efficiency of the designed product.

modularize

The design requirements of modern mechanical products are not only intelligent and systematic, but also modular. Comparatively speaking, the modular design idea is clear and agile, and it has outstanding advantages in completing the combination of mechanical properties and functions, thus greatly improving the overall advantages of products and meeting the requirements of mechanical design schemes.

2.4 Future mechanical design ideas

2.4. 1 design concept of mechanical designer

With the improvement of people's quality of life, the requirements for mechanical design are also improving, and the consciousness of staff should be more considerate of people's production. Close to life, attention to detail? Design better products based on the concept of. Therefore, mechanical product designers are required to pay special attention to the performance and quality of mechanical product design to ensure product quality.

2.4.2 Mechanical Design Market

Modern mechanical products should have an advantage in market competition, and the design technology of mechanical products should take the ultimate goal of production as various markets. Under the current market competition trend, designers should actively develop and innovate design theory, apply innovative spirit and advanced science and technology, and study new technologies and functions of mechanical products, so as to improve the quality of mechanical products and gain a greater dominant position in market competition. Only by carrying out various designs for various markets can we occupy the market and benefit the development prospects. Only by improving the market competitiveness of products can we adapt to the competitive trend of today's market economy.

Related to the times

Modern mechanical products should also be combined with the requirements of the times. For example, the green design concept of energy saving and environmental protection and other new health concepts. In recent years, green environmental protection has become the theme of the development of all walks of life, and the awareness of environmental protection is deeply rooted in people's hearts. Nowadays, the shadow of low-carbon life can be seen everywhere, and green products continue to enter the market and are welcomed by everyone. Therefore, mechanical design can also be combined with low-carbon consumption, green production and other designs to better realize its conceptual value.

Third, the conclusion

This paper mainly analyzes the mechanical design in mechanical manufacturing, discusses the characteristics of mechanical design and the problems that should be paid attention to in the design process, and puts forward some opinions based on the future development trend, so as to provide more opinions for mechanical design.

References:

[1] Wang Baoxiang. Technical analysis of mechanical design and manufacturing [J]. Coal Technology, 20 13-04- 12.

[2] sunny days. Analysis of mechanical design and manufacturing technology [J]. Scientific and technological innovation and application, 2014-08-11.

Academic papers of mechanical specialty II

Mechanical design and mechanical manufacturing technology

Modern design is characterized by market-oriented and user-oriented design. Modern design should not only realize the basic functions of products, but also embody the design concept of humanization and environmental protection. At the same time, China's mechanical design and manufacturing technology has made great progress in recent years. However, compared with the traditional industrialized countries, we still have a very obvious gap. Due to various factors such as technology, management and insufficient investment, China's manufacturing industry is under great pressure from the international market. The mechanical design and manufacturing technology are expounded.

Keywords: mechanical design, mechanical manufacturing technology

introduce

Mechanical design and manufacturing technology is an important symbol to measure a country's scientific and technological development level. With the development of science and technology and the popularization of computer network technology, the mechanical design method has undergone substantial changes. New scientific and technological achievements have continuously enriched the ideas, theories and methods of mechanical design, and constantly promoted the development and reform of mechanical design. In China, mechanical manufacturing technology has made great progress after years of development, but compared with some developed countries abroad, there is still a certain gap. Constantly improving mechanical design and strengthening mechanical manufacturing technology is the premise to ensure that China's mechanical system reaches the world's leading level.

1. Modern design methods and contents of machinery manufacturing industry

At present, the design method of mechanical manufacturing industry is based on the profound reflection on the traditional mechanical design concept in the past, and the corresponding mechanical design is implemented by comprehensive application of modern design technology, which can be summarized as the following three main contents.

1. 1 Digitization has become the core feature of current mechanical design.

With the progress of science and technology, especially the rapid development of digital technology, the corresponding modeling work can be carried out around the whole design life cycle before the mechanical design is carried out. At the same time, we can make full use of computer technology to simulate design and the whole life cycle of product design, so as to provide the best reference for actual mechanical design. In the design, a large number of digital design techniques and methods can be comprehensively used, and computer-aided design and digital management methods can be widely used to scientifically manage the whole design process to ensure the optimization of resource allocation and the maximization of design efficiency.

Parallelization of 1.2 has become the biggest trend of mechanical design at present.

With the support of computer, the mechanical manufacturing design team can enjoy more information, thus breaking the barriers of time and space. Mechanical designers from different regions can realize collaborative design under the same platform. In the process of mechanical design, we can win more technical support and help, realize mutual assistance and complementarity of various advantages, and constantly improve the design ability and level. In the past, the traditional mechanical design was often unilateral serial design, and each product needed step-by-step design. After one design step is completed, the next design can be carried out, and the utilization rate of design resources is not high. In addition, in the design process, each design link also lacks the necessary communication means, and the problems found in the design cannot be corrected at the first time, which makes the development cycle of mechanical design longer and increases the workload of designers. With the development of large-scale comprehensive machinery, the structures and functions of various machinery have become more diverse and complex. The ideas established in the early stage of mechanical design and development have great influence on the later stage. Because the design process is complicated, it is difficult to correct the previous ideas if they are flawed.

1.3 intellectualization has become an urgent requirement for current mechanical design.

With the wide application of automation technology in the field of mechanical design, the degree of mechanical automation is getting higher and higher, which correspondingly puts forward higher requirements for the mechanical automation design process. Mechanical designers need to make full use of intelligent technology to carry out corresponding mechanical design work and build a perfect intelligent system.

2. Analysis of the development status of mechanical design and manufacturing technology in China.

Mechanical design and manufacturing includes the whole process of product design, production, processing and manufacturing, sales and use, maintenance service and even recycling. It is a complete system engineering, aiming at improving quality, efficiency and competitiveness, including material flow, information flow and energy flow. The rapid development of China's machinery manufacturing industry mainly depends on the strategy of technology introduction and catch-up development, and it is seriously short of independent R&D links, which greatly limits the development of China's machinery manufacturing industry. In addition, China is rich in labor resources and relatively short of funds, which leads to the obvious lag in scientific research and development of machinery manufacturing industry. Although the number of products in China's machinery manufacturing industry ranks among the top in the world, it mainly relies on labor-intensive products, and there are few high-quality and sophisticated products with independent intellectual property rights, which is at a relative disadvantage in international competition. At the same time, although the quality of China's machinery manufacturing products has been greatly improved, there are still some problems in quality reliability, appearance design and internal performance of a large number of mechanical and electrical products. Therefore, as far as the actual situation is concerned, China's manufacturing industry is large but not strong, and China is a manufacturing power rather than a manufacturing power.

3. Modern design methods of mechanical products

3. 1 intelligence

The main characteristics of intelligent design method are: according to the theory of design methodology, with the help of three-dimensional graphics software, intelligent design software and virtual reality technology, as well as multimedia and other tools to develop and design products, express product ideas and describe product structure.

3.2 systematization

The main feature of systematic design method is that design is regarded as a system composed of several design elements, each of which is independent, organically related and hierarchical. After all the design elements are combined, the tasks required by the design system can be realized.

3.3 modularization

The main feature of modular design method is that the realization with a certain function is regarded as a structural module, and the product scheme design is realized through the combination of structural modules.

3.4 Based on product feature knowledge

The main features of knowledge design method based on product features are: describing product features and knowledge and experience of design experts in a language that can be recognized by computer, establishing corresponding knowledge base and reasoning machine, and then using the stored domain knowledge and the established reasoning machine to realize product scheme design.

4. Advanced technology analysis in mechanical manufacturing

With the development of science and technology and the optimization of product shape and structure, the requirements for processing quality of parts are getting higher and higher. NC machining technology is developed in this environment, which is suitable for high-precision complex parts and high-efficiency flexible automatic machining technology for small and medium-sized batch production. At present, numerical control technology has developed rapidly, and its application field has expanded from aerospace to automobile, machine tool and other small and medium-sized mass production machinery manufacturing industries.

4. 1 precision and ultra-precision machining technology

With the rapid development of aerospace, computer, material science, laser, automatic control system and other high-tech industries, the processing accuracy has been improved to 0.0 1 by comprehensive application of today's advanced processing technology. Sub-nanometer, to nanometer. Precision machining and ultra-precision machining technology are the frontier and one of the main development directions of modern manufacturing technology, and have become the key technologies to win in international scientific and technological competition, especially precision machining technology plays an important role in cutting-edge products and modern weapons manufacturing.

4.2 Ultra-high speed cutting and grinding technology

Ultra-high-speed machining technology refers to an advanced machining technology that uses ultra-hard tools and abrasives and uses high-precision, high-automation and high-flexibility manufacturing equipment that can reliably realize high-speed movement to improve cutting speed, so as to improve material removal rate, machining accuracy and machining quality. It has the advantages of small cutting force, small thermal deformation, high machining accuracy and low machining cost.

4.3 New generation manufacturing equipment technology

4.3. 1 Fixture-free manufacturing technology

In the conventional manufacturing system, a large number of fixtures required for product production not only cost a lot of money, but also prolong the preparation time of products, forming a "fixture" in the manufacturing process. Bottleneck? This is one of the main factors that cause poor flexibility, slow response, high production cost and weak competitiveness of enterprises. In view of the important academic significance and practical value of less fixture manufacturing technology, many units at home and abroad have carried out research work in this field.

4.3.2 Virtual Axis Machine Tool

Virtual axis machine tool is a new type of parallel configuration manufacturing equipment, which is essentially a mixture of robot and machine tool. It is completely different from the traditional CNC machine tool in structure, with the advantages of high modularity, simple structure, fast speed and dynamic response, low cost and so on, and overcomes some inevitable inherent defects of traditional machine tools.

4.4 Micro-manufacturing and Nanotechnology

With the demand for functional integration and miniaturization of many industrial products, the size of parts is getting smaller and smaller. These demands have led to the emergence of micromachining and nano-manufacturing technology since 1970s, which has promoted the development of micromechanics in a systematic direction and formed a micro-electromechanical system (MEMS) with broad development prospects.

Concluding remarks

To sum up, with the continuous progress of science and technology, China's machinery manufacturing industry has made some achievements, but there are still some shortcomings in China's machinery design and manufacturing technology, which seriously affects the development of China's machinery manufacturing industry. Grasp the development trend of mechanical design and manufacturing, constantly improve design methods and manufacturing technology, and adopt advanced mechanical manufacturing technology, thus promoting the improvement of China's mechanical manufacturing level.

References:

Zhang Baokun, Wang Shuxia, Rebecca. Development direction of mechanical design and manufacturing and its automation [J]. Chemical equipment technology, 20 1 1.

[2] Chen Jing, Development Status and Trend of Mechanical Design Technology [J]. China Petrochemical Standards and Quality, 20 1 1.

[3] Yang. On the prospect of mechanical design, manufacturing and automation [J]. Literary life? Wenhai Art Garden, 20 10

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