Some experiences of nonstandard design 1. Purpose of non-standard design: 1 Improve product quality; 2. Improve efficiency; 3. Ensure production safety. Second, the non-standard design must be: 1. The necessary design manuals can be downloaded from the Internet. Manual is your best teacher, and you can find the knowledge you want from it. For example, if the design requires gears, you can find the parameters of designing gears in the manual. Look for the manual first when you encounter problems. Download some pictures of mechanical equipment to broaden your horizons. 3. The trajectory of the equipment is nothing more than a straight line or rotation. Mastering these mechanical principles, combined with electrical, pneumatic and hydraulic, we can design non-standard equipment, both good and bad. 4. It is best to download some cad standard parts and put them in the design center of cad, so as to facilitate pasting and improve work efficiency. III. Compilation of non-standard design: 1. Understand the purpose of the equipment, is it processing equipment? Or test equipment? Or a fixing device. Processing equipment: firstly, ensure the processing accuracy, and secondly, the loading and unloading is convenient, accurate and fast. Test equipment: provide the corresponding power supply, test the necessary test points, how to combine with electricity, display data and read data. Fixture: How to limit the freedom and assemble and disassemble quickly and reliably. 2. Field investigation to obtain relevant data. A. Equipment-related data, such as overall dimensions, corresponding drawings and dimensions. B. Whether the relevant data of the equipment installation site will interfere with other equipment. C electrical related data used in equipment installation, what voltage is it and how much power it can provide. 3. Prepare some industry standards, product-related information of online manufacturers, and each manufacturer will provide information such as principle and installation size to prepare drawings. 4. come up with a plan: the feasibility report of the plan includes the following contents: a. the efficiency and accuracy of the original equipment, etc. , and explain why you want to update or add features of new equipment. C production costs, including material costs, labor costs and external processing costs. D. Cost recovery period: the investment will be recovered within six months, and it will be done immediately; The investment can be recovered within one year. Including how much labor costs are reduced and the value created by improving efficiency. E. estimation of production cycle. 4. Design: 1. Sketch the design in your mind, use your imagination, divide the equipment into several blocks, and how each block is constructed and connected. 2. Draw pictures and put ideas into the pictures. Draw the general plan first, and then draw the parts. Easy to change design and ideas. 3. Strength check. Experienced people can choose materials directly. Those who have little experience should do a simple check to prevent major mistakes. 4. Check the drawings, mainly to see whether the parts interfere with each other and whether it is convenient for installation, use and maintenance. 5. Arrange the drawings, calculate the weight of parts, and make a quick quotation. The nuclear price of the processed parts can be 2 ~ 3 times of the material weight × the material price. V. Market research and inquiry: The designed products are divided into parts and parts inquired in the market, and common parts are adopted as far as possible to facilitate maintenance and exchange. 6. Design suggestion: 1. Things designed by novices are definitely not perfect. You should consult more old engineers, who will generally give you guidance to improve yourself. People with a strong sense of responsibility may be worried and can't sleep. Everyone came from this step. As long as you put your heart into it, nothing will happen. Even if you make mistakes, it is inevitable. It depends on how you make up for them. 2. The mechanical industry does not develop as rapidly as the electronic industry, for the simple reason that there are few available principles. The electrical industry has also promoted the development, and machinery is effectively combined with electricity, pneumatic and hydraulic. The development of new materials has brought light and durable benefits to machinery. Mechanical principles are like notes. There are only a few kinds, whether it's equipment or products, it depends on how you match them. Read more about your own design, understand design concepts and apply them to your own design. This is not plagiarism, but application. 3. The designed things must be easy to maintain, so small that there is no place to put a wrench. It is really impossible to use hexagon socket bolts. It is convenient for machining, and the machining problem should be considered in the design, such as not drilling on the circular arc surface as far as possible, if drilling must pass through the center, or machining the platform before drilling. 4. After the first draft of the design comes out, it must be optimized. Is there a simpler way or a more advanced component to replace it? For example, if you want to be an electric flat car with DC and AC drive, communication is not very safe. In addition, there are transmission lines, and DC costs are very high. You need a rectifier, but you can also use batteries. The speed required for flat car transportation is very low, 60m/min, and the motor speed is very high, so it is usually necessary to use gearbox to change speed. But it is known on the Internet that the speed of DC brushless motor can reach 40r/min, so there is no need for gearbox, which reduces investment, fault points and maintenance costs. This is innovation.