what are mechanical parts

mechanical parts? Which belong to mechanical parts? What are the corresponding castings and forgings?

mechanical parts are defined:

1. Parts-A single component that cannot be split.

2. Components-A combination of parts that implement an action (or function). A component can be a part or a combination of multiple parts. In this combination, there is one part that is the main part, which realizes the established action (or: function), and other parts only play an auxiliary role such as connection, fastening, and guiding.

3. Parts-Under normal circumstances, all parts and components except the rack are collectively referred to as parts. Of course, the rack is also a component.

As for castings and forgings, it is the classification of manufacturing methods of parts. Different materials and manufacturing methods make parts have different mechanical properties. It is not the same concept as parts. So how to draw the drawings of mechanical parts?

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

In addition, mechanical parts also have their own standardized production. This is the standard quantification of mechanical parts in the United States, such as the length and diameter of screws, and a series of parts have been unified, so that once the machinery fails, it is very easy to repair. This measure is similar to China's Qin Shihuang's unification of writing, language, weights and measures!