Six principles of the hottest machinery design

Six principles of mechanical design

mechanical design principles:

(1) market demand-oriented principle mechanical design, as a production activity, is closely linked with the market From determining the design topic, use requirements, technical indicators, design and manufacturing duration to coming up with the overall plan, feasibility demonstration, comprehensive utility analysis (focusing on the comprehensive analysis of the actual use effect), profit and loss analysis, to the specific design, trial production, identification, information feedback after the product is put on the market, etc., all operate closely around the market demand Designers should always think about how to design products to make them competitive, occupy the market and be favored by users

(2) creative principle creation is human ability If human beings do not give full play to their creativity, production will not develop, science and technology will not progress, and there will be no human today Only as a creative activity can design have strong vitality Stick to the old ways, dare not innovate, and can only fall behind others forever Especially with the rapid development of science and technology in the world, it is particularly important to steal the creative principle in mechanical design

(3) standardization, serialization, generalization principle standardization, serialization, generalization is referred to as "three modernizations" Three modernizations is a very important technical policy in China, which should be carefully implemented in mechanical design Standardization refers to the unified regulation of technical indicators in terms of quality, specification, performance, structure, etc. of products (especially parts) and their implementation as standards China's standards have formed a huge system, mainly national standards, industry standards and so on In order to get in line with international standards to eliminate friction, some standards in China are rapidly approaching international standards Common standard codes include GB, JB, ISO, etc. they represent the national standards of the people's Republic of China, the standards of the machinery industry, and the standards of the international organization for standardization Serialization refers to specifying several different size series for the same product under the same basic structure or basic conditions Generalization refers to the use of components with the same structure and size in different types of products or similar products with different specifications The main benefits of the three modernizations of habitual theft are: reducing the design workload, improving the design quality and shortening the production cycle; The specification of cutting tools and measuring tools is reduced, which is convenient for design and manufacturing, so as to reduce its cost; It is convenient to organize the scale and specialization of standard parts, easy to ensure product quality, save materials and reduce costs; Improve the use of assessment, high interchangeability, easy to maintain; It is convenient for the country's macro management and regulation as well as domestic and foreign trade; It is convenient to evaluate product quality and solve economic disputes

(4) the design of the overall optimization principle should be systematic and optimized The internal parts of the machine with the best performance are not necessarily the best; The machine with the best performance is not necessarily the machine with the best benefit; As long as it is conducive to overall optimization, mechanical components can also be replaced by electronic or other components But what is different from before is that in a word, designers should consider the design scheme in the large-scale system and seek the best, analyze it from the aspects of economy, technology, social benefits and so on, calculate and meet the strict standards of product health and safety and consumer protection at the same time, weigh the advantages and disadvantages, and try to achieve the best design effect

(5) the principle of combining practice. All designs should not be divorced from reality Designers should especially consider the current supply of raw materials, the production conditions of the enterprise, the use conditions and requirements of users, etc

(6) ergonomics principle machines serve people, but they also need people to operate and use How to make the machine adapt to the requirements of human operation, after the integration of man and machine, the input-output ratio is high, and the overall effect is the best, which is a subject in front of designers A good design must conform to the principles of ergonomics