What is Changzhou Machinery Parts Processing?

What is Changzhou Machinery Parts Processing?

The definition of machining of mechanical parts is:

1. Parts - cannot be split of individual components.

2. Component - a combination of parts that implements an action (or: function). A component can be a single part or a combination of multiple parts. In this combination, one part is the main part, which realizes the given action (or: function), and the other parts only play auxiliary functions such as connection, fastening, and guidance.

3. Parts--Under normal circumstances, all parts and components except the frame are collectively referred to as parts. Of course, racks are also components.

As for castings and forgings, it is a classification of the manufacturing method of parts. Different materials and manufacturing methods make parts with different mechanical properties. It is not the same concept as parts.

How to draw the drawings of Changzhou mechanical parts processing?

As long as you know CAD, it is simple. A mechanical part generally needs to draw three drawings on a piece of paper: the main view (the drawing seen from the front of the part) ), front view (view from directly above the part), left view (view from the right side of the part). Generally, simple parts can be clearly expressed by drawing these three pictures, such as gear shafts. For a diagram with a complex structure, it is necessary to draw a cross-sectional view and a partial enlarged view, that is, to cut a certain part of the part and express its internal structure and size clearly, such as screw holes, gearboxes, gears, etc. Knowing so much is not enough. If you want to know how to draw in detail, you need to look at the drawings of mechanical parts. In fact, most of the drawings are used in practice. There are many details to pay attention to. Practice more, and then read the book. OK.

In addition, the processing of mechanical parts also has its own standardized production. This is the standard quantification of mechanical parts in the United States, such as the length and diameter of screws, etc. A series of parts and components have made a unified standard, so that once the machine fails, it is very easy to repair. This measure is similar to Qin Shi Huang's unification of writing, language, weights and measures in China!

After Z is the cleaning of mechanical parts.

The dirt in the machining of mechanical parts mainly consists of grease, anti-rust grease and other mixtures of sludge, which can be cleaned with alkaline cleaning solution, electrochemical cleaning, or Ultrasonic cleaning machine cleaning, ultrasonic cleaning machine cleaning is a special category of cleaning, which belongs to industrial cleaning. Clean with alkaline cleaning solution. The technological process of chemical cleaning with alkaline cleaning solution is: installation - alkaline cleaning - water washing (50-900 ℃ hot water) - drying (clean hot compressed air to dry, the parts that require strict requirements are dried by compressed air It also needs to be baked in an electric blast drying oven at 105-1150℃ for 10min.

Electrochemical cleaning with alkaline cleaning solution

The following points should be paid attention to in the electrochemical cleaning of alkaline solution: it is not suitable to clean the thick oil stains on the surface of the machine parts. Clean on the cathode, and then clean on the anode. Spring parts, thin-walled steel parts, ultra-high-strength steel parts, etc. cannot be cleaned on the cathode (in order to avoid hydrogen infiltration of materials, resulting in hydrogen embrittlement); for copper, zinc, nickel and other materials The manufactured parts cannot be cleaned on the anode (to avoid oxidation of the surface of the material); quantitative analysis of the electrolyte is carried out regularly, and drugs are supplemented according to the analysis results.

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