Questions about mechanical design and manufacturing??

No. This person who does not learn can also do it.

To learn mechanical design and manufacturing, you need to learn mechanical principles and theoretical knowledge. Then there are design classes. For example, if you design a car gearbox and the like, many of them are standardized by the state.

You need to calculate stiffness, strength, stress, etc... For example, design track drive wheels and wheel side reduction mechanism.

1, you have to know what car uses this... So check the information... The results are drawn: tanks, bulldozers, excavators, etc.

2, What is the drive wheel? It's not for you to design it out of thin air, this country has standards. As long as you know the mechanical problems in the track drive wheel and wheel side deceleration mechanism that you want to design, that is, you need to calculate, this thing may take a few weeks to find the full data to calculate, and you can select according to the corresponding national standard (GB) according to your calculation results.

3. After the selection of the drive wheel, it is not over, but also the choice of tracks, drag sprockets, rollers, guide wheels, these are simple, the choice does not need to be calculated.

4. Design the deceleration mechanism. Self-design according to requirements. For example, if you choose the cycloid pinwheel planetary reducer, then the sprocket reduction mechanism, and then the design of the transmission mechanism, then you also have to choose what way to change the speed,,, for example, if there are only two speeds, then choose the slip gear, 5, wheel side deceleration, this is very simple, design the reduction ratio, and the two gears are meshed.

6.The above transmission part is designed, and then you have to choose the design bracket... It's troublesome.

What you say is not a problem, and people who don't learn can design it.

It doesn't seem to be a mechanical design and manufacturing major, it's a bit like an industrial design major.

The difficulty of the course is relatively difficult, if you are not strong in hands-on ability, or people who are not very good at mathematics and physics, it will be very difficult to learn mechanics. Relatively speaking, this major is not cost-effective.

Working environment: If it is the working environment of the workshop under the technology, as shown in the figure below.

Reasons for low wages in the machinery industry: Since the first and second industrial revolutions broke out in Europe, the technological content of China's machinery industry lags far behind that of Europe, especially Germany. When your industrial chain is at the low end of the industry, it means low profits.

The period of the booming machinery industry was from the 90s to 2010 of the last century, during this time, the country was busy imitating foreign advanced technology, and there was a large demand for machinery. However, after the financial crisis, a large number of backward production capacity that was originally to be eliminated was supported by the four trillion bailouts, resulting in a large number of low-end products in the domestic machinery industry, vicious competition, weak industry profits, and the machinery industry is an asset-heavy industry, and it is impossible to raise the salary of engineers in the case of meager profits. But the cost of living is increasing, coupled with the harsh working conditions in the machinery industry.

No one thinks about the machinery industry.

Professional profile. <>

Mechanical design and manufacturing is one of the earlier majors of Qingdao University of Technology (September 1978), which was approved as a characteristic major in Shandong Province in 2006, a national characteristic major in 2008, a second batch of outstanding engineer education and training programs of the Ministry of Education in 2011, a pilot major for the cultivation of application-oriented talents in ordinary undergraduate colleges and universities in Shandong Province in 2014, and a pilot major for the training of "3+4" counterpart through sections.

Relying on the School of Mechanical Engineering of Qingdao University of Technology, the Linyi Campus established the Department of Mechanical and Electrical Engineering in July 2008, which was later renamed the Department of Mechanical and Electronic Engineering. The Mechanical Design and Manufacturing program began enrollment in 2012.

In line with the talent training ideas and principles of "sufficient theoretical foundation, strengthening the cultivation of practical skills, attaching importance to the cultivation of innovative consciousness and paying attention to the cultivation of comprehensive quality" and "strengthening the basic design ability, engineering practice ability and innovative design ability of students", the training plan is constantly improved, and the implementation of teaching management and practical teaching links is strengthened.

Cultivation goals. The students trained in this major require all-round development of morality, intellect and physique, master the basic theories, basic knowledge and basic skills necessary for the major, have the ability to design common mechanical parts, compile machinery manufacturing process regulations, design process equipment and general special machinery and equipment, have strong practical ability and market competitiveness, and become medium and senior application-oriented and skilled technical and management talents to meet the needs of the market.

Mechanical design is an important part of mechanical engineering, the first step of mechanical production, and the most important factor in determining mechanical performance. The goal of mechanical design is to design the best machine under various limited conditions (such as materials, processing capacity, theoretical knowledge and calculation methods, etc.), that is, to make an optimal design.

Optimal design requires a combination of many requirements, generally including: best working performance, lowest manufacturing costs, minimum size and weight, maximum reliability in use, lowest consumption and least environmental pollution. These requirements are often contradictory, and their relative importance varies depending on the type and use of the machinery.

The task of the designer is to weigh the importance according to the specific situation, and take into account the overall consideration, so that the designed machinery has the best comprehensive technical and economic effect. In the past, design optimization relied primarily on the designer's knowledge, experience, and foresight. With the development of new disciplines such as basic theories of mechanical engineering, value engineering, and system analysis, the accumulation of technical and economic data for manufacturing and use, and the popularization and application of computers, optimization gradually abandons subjective judgment and relies on scientific calculation.

Technical Performance Guidelines.

Technical performance includes all aspects of product functionality, manufacturing, and operating conditions, both static and dynamic. For example, the power, efficiency, service life, strength, stiffness, friction resistance, wear performance, vibration stability, thermal characteristics and so on that the product can transmit.

The technical performance criterion means that the relevant technical performance must meet the specified requirements. For example, vibration can generate additional dynamic loads and variable stresses, especially when its frequency is close to the natural frequency of a mechanical system or part, and the resonance phenomenon will occur, at which point the amplitude will increase dramatically, which may lead to rapid damage to the part or even the entire system.

The vibration stability criterion is to limit the relevant vibration parameters of the mechanical system or parts, such as natural frequency, amplitude, noise, etc., within the specified allowable range. For example, the heat generated during the operation of the machine may cause thermal stress, thermal strain, and even thermal damage. The thermal characterization criterion is to limit the various relevant thermal parameters (e.g., thermal stress, thermal strain, temperature rise, etc.) within the specified range.

Mechanical design and manufacturing mainly studies the basic knowledge and professional skills of mechanical drawing, computer-aided drawing, mechanical workpiece design, etc., and carries out non-standard workpiece design, standard workpiece improvement, mechanical parts processing, mechanical design and assembly in the field of mechanical design and manufacturing. For example, design the shape, structure, material, processing method of the part, etc.

This major cultivates high-quality technical and skilled talents with all-round development of morality, intelligence, physique and aesthetics, good professional ethics and humanistic qualities, mastering the basic knowledge of modern mechanical design, mechanical manufacturing technology, mechanical drawing, mechanical design, machining technology, CNC programming and processing, mechanical parts measurement and production management, etc., and engaged in mechanical design and manufacturing, equipment production and installation, commissioning and maintenance, production site management, etc.

Curriculum system

Mechanical Drawing", "Fundamentals of Mechanical Design", "Computer CAD Drawing", "Tolerance Fit and Measurement Technology", "Engineering Materials", "Metal Cutting Principles and Tools", "Machining Process Design", "Modern Machining Technology", "Machine Tool Fixture Design", "CNC Machining Technology", "Hydraulics and Pneumatics".

Fundamentals of Electrician", "3D Model Design", "SOLIDWORKS Software Application" Some colleges and universities are trained in the following professional directions: 3D beating, intelligent manufacturing, CNC machining technology, valve design and manufacturing, machine tool remanufacturing technology, automobile and motorcycle parts manufacturing.

The main disciplines of mechanical design and manufacturing are mechanics and mechanical engineering.

Main courses: Engineering Mechanics, Mechanical Drawing, Fundamentals of Mechanical Design, Electrical and Electronic Technology, Principles and Applications of Microcomputers, Materials for Mechanical Engineering, Fundamentals of Manufacturing Technology.

The main practical teaching links: including military training, metalworking, electrician, electronic practice, understanding practice, production practice, social practice, curriculum design, graduation project (**), etc., should generally be arranged for more than 40 weeks.