1. Mechanical tooling design, that is, simple design of small machinery or mechanical parts.

2. The working principle, structure, movement mode, transmission mode of force and energy, materials, shapes and sizes of each part, lubrication mode, etc. of the machine. The working process of conceiving, analyzing and calculating according to the use requirements and transforming them into specific descriptions as the basis of manufacturing.

3. Definition of tooling: "tooling" refers to the process equipment in the production process: it refers to the general name of various tools used in the manufacturing process.

4. Tooling classification: including tools/jigs/molds/measuring tools/checking tools/auxiliary tools/fitter tools/workstation appliances, etc.

5. Special tools, fixtures, molds, measuring tools, checking tools and auxiliary tools used for machining, as well as locksmith tools/workstation instruments used for specific assembly, etc.

Non-standard mechanical design is a major category of mechanical design. Due to the rapid development of manufacturing industry in China, there are more and more practitioners in non-standard mechanical design industry. To put it bluntly, non-standard mechanical design is to serve the production process of products, and every process of products depends on these non-standard equipment. However, due to the different production processes of different products, there are many kinds of non-standard equipment, including tens of millions and hundreds of millions of large production lines, and hundreds of tooling without standard design processes.

Customer consultation-customer's explanation-preliminary plan-technical exchange-modification plan-signing contract and technical accessories-basic design (equipment general drawing)-technical countersigning-detailed design (spare parts construction drawing) may be exchanged many times, and there may be construction drawing countersigning after detailed design.

Discussion scheme

First, the purpose of non-standard design

1 to improve product quality;

2. Improve efficiency;

3. Ensure production safety.

Second, non-standard mechanical design is necessary.

1. The necessary design manual 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.

2. Download some mechanical equipment atlas 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.

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.

Third, non-standard mechanical design preparation

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, understand the relevant data.

A. Equipment-related data, such as overall dimensions, and corresponding drawings and dimensions.

B. Will the relevant data at the equipment installation site interfere with other equipment?

C electrical information used in equipment installation, how many volts is the voltage and how much power can be provided.

3, prepare some industry standards, online manufacturers' product-related information, 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 scheme includes the following contents:

A. Efficiency and accuracy of original equipment, etc. , and explain why it is updated or added.

B. Features of new equipment

C production costs, including materials, labor and external processing.

D. cost recovery period: recover the investment within half a year and do it 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.

Conceptual sketch

Four, non-standard mechanical design drawings

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, drawing, putting ideas into the drawings. Draw the general plan first, and then draw the parts. Easy to change design and ideas.

3, strength inspection, experienced people can directly choose materials, people with less experience, to conduct a simple inspection, to prevent major mistakes.

4. Check the drawings, mainly to check whether there is interference between parts and whether it is convenient for installation, use and maintenance.

5. Arrange the drawings and calculate the weight of parts for quick quotation. The nuclear price of the processed parts can be 2 ~ 3 times of the material weight × the material price.

Five, non-standard mechanical design considerations

1, something designed by a novice is 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.

Conceptual sketch

3. The designed things must be easy to maintain, so small that there is no place to put a wrench. If it is really not possible, 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 the 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.