When you enter the mechanical design industry for a period of time, you should be clear about the ideas of mechanical product design, which helps you to see the product from the overall height, the following I briefly discuss my understanding of mechanical product design.
1、clear product function and the overall parameters to meet the function.
2、familiar with the mechanical transmission, hydraulic transmission, pneumatic transmission, electric transmission forms and advantages and disadvantages; reasonable choice of transmission mode and transmission route. The transmission process is from the prime mover to the actuator, and the transmission process can be understood as the redistribution of power from the prime mover to finally achieve the rotation (required torque and speed) or linear motion of the actuator.
3、through the requirements of the actuator and the known transmission process to invert the original motor power, power to have margin, and then a reasonable distribution of transmission ratio, the final output to calculate the torque or force first, this is the premise, if the torque or force does not meet the requirements, the actuator can not move, speed is a false proposition.
4、Determine the parameters of each outsourced part through calculation, choose the manufacturer for parameter and price comparison, and finally determine the reasonable configuration and external dimensions of outsourced parts.
5、Consider the layout of each component through the size of the identified external parts and the structural form of the whole machine, and fully consider the installation requirements, maintenance requirements and special requirements of each component.
6、Preliminary calculation of the main structure of the force, choose a reasonable section size.
7、Concrete structural design.
Mechanical design skills.
1、Learn to check the manual, check the relevant papers, first understand a rough idea by yourself, do not move to ask others casually.
2, try to understand the commonly used brand of external parts, as much as possible to understand the types of external parts and standard parts, broaden the knowledge.
3, master the standard drafting skills, to ensure that the drawing surface is beautiful, reasonable labeling, need to master the drafting standards and labeling principles and process knowledge.
4、Master the methods and formulas of various scientific calculations, and in general to have a grasp of the product transfer route.
5、Understand the properties of commonly used materials and the principles of selection.
6、Learn to learn from the existing product structure and design ideas (carefully studied thoroughly can take many detours).
7、Do not limit yourself to structural design, hydraulic and electrical knowledge should be understood.
8、common force analysis calculations to know the method and formula.
9、some common data should be familiar with.
10、must have cost consciousness, no such consciousness to do mechanical design you are not qualified.
11、the production of documents to the relevant program introduction to let others can read. (Do Don’t make me think)
12、about the calculation learn to do some calculation tables (Excel formula), can save a lot of time.
Principles.
1、their own calculations and drawings to double-check themselves, first of all, they look good and and check that there is nothing wrong, do not give a bunch of problems to others.
2、do the structural design must consider the most economical program, the cost to control in the design phase.
3、focus on the appearance of the design.
4、you design something must have a basis to follow, or through theoretical calculations, or by analogy to determine, if there is no basis, that you by in the design, so there is no reliability.
5、more brains, mechanical design requires strong logical thinking, the brain does not turn, the idea is also stagnant.
6、pay attention to the basics of learning. Do not do a few years, do not know EQS, welding symbols, theoretical true size, coarse teeth, fine teeth, 8.8 level, gear displacement, yield strength, strength, stiffness, flexural section coefficient, displacement, flow, tempering treatment and other common sense.
7、other design principles online to look up information to learn, will help.
Advice.
1、”price is the monetary expression of value”, first of all, your ability to match the high and new you want, each industry has the best in each industry. You have not yet reached that class, that you are not enough. When you reach that level, looking back, you will find, “in fact, I also want to low profile, but make the strength does not allow ah.
2、mechanical design knowledge system is very large, need to spend time to slowly learn, unless you do not do this line, to do to keep learning, and constantly force themselves to learn new knowledge, specializing in a door, learn more.
4、to consciously develop their management skills, learn to be a leader.
5、less talk about software, do not rely excessively on three-dimensional software, focus on developing two-dimensional basic knowledge.
6、out of the mix always have to return, if you do design always feel not to start, that you lack of knowledge is too much, according to the system of thinking targeted, slowly add relevant basic knowledge.
7、if you really do not like the machinery, I advise you to leave before it is too late, the pit is a little deep, do not fall deeper and deeper.
8、everything you have to learn to try to get yourself. One day you will find that my own original so powerful.
