CNC punching machine—an overview of mechanical design principles

(1) The principle of market demand-oriented mechanical design, as a production activity, is closely related to the market. From the determination of design topics, use requirements, technical indicators, design and manufacturing schedules to the overall plan, and feasibility Demonstration, comprehensive utility analysis (comprehensive analysis focusing on the actual use effect), profit and loss analysis until specific design, trial production, appraisal, and information feedback after the product is put on the market are all closely operated around market needs. Designers must always work. Thinking about how to design to make the product competitive, able to occupy the market, and be favored by users.

(2) Creativity 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 beings today. Design has strong vitality only as a creative activity. Follow the old fashioned, dare not to innovate, and can only stay behind others forever. Especially in the context of the rapid development of science and technology in today's world, it is particularly important to steal the creative principle in mechanical design.

(3) Standardization, serialization, and generalization principles Standardization, serialization, and generalization are referred to as ”threeizations”.”threeizations” is a very important technology policy currently in our country. Conscientiously carry out the practice. Standardization refers to uniformly stipulating the quality, specifications, performance, structure and other technical indicators of products (especially parts) and implementing them as standards. China's standards have formed a huge system, mainly including National standards, industry standards, etc. In order to be in line with international standards, some of China's standards are rapidly moving closer to international standards. Common standard codes are GB, JB, ISO, etc., which represent the national standards of the People's Republic of China, machinery industry standards, International Organization for Standardization Standards. Serialization refers to the provision of a number of different size series for the same product under the same basic structure or basic conditions. Generalization refers to the use of the same structure and Dimensions of parts. The main benefits of hacking & rdquo; San Hua & rdquo; are: reducing the design workload, conducive to design quality and shortening the production cycle; reducing the specifications of tools and measuring tools, facilitating design and manufacturing, thereby reducing its cost ; It is easy to organize the scale and specialization of standard parts, easy to product quality, save materials, and reduce costs; interchangeability and easy maintenance; easy to manage and control the country as well as internal and external trade; easy to evaluate product quality and resolve economic disputes .

(4) The overall optimization principle design should be used to steal & rdquo; systematization & rdquo; and the idea of ​​optimization. The internal parts of a machine with the best performance are not necessarily the best; a machine with the best performance is not necessarily a machine with the best benefit. ; As long as it is conducive to overall optimization, mechanical components can also be considered to be replaced with electronics or other components. In short, designers should put the design scheme in the large system to consider, and seek the best, from the economic, technical, social benefits, etc. Analyze, calculate, weigh the pros and cons from all aspects, and try to make the design effect the best.

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

(6) The principle of ergonomic engineering. The machine is for people, but it also needs people to operate and use. How to adapt the machine to the operating requirements of people? After the integration of man and machine, the input-output ratio is high, and the overall effect is the best. This is A topic before designers. A good design must conform to the principles of ergonomics