Can you understand all the mechanical part drawings?

Orthogonal projection method
The parallel projection method where the projection lines are parallel to each other and perpendicular to the projection surface during projection.

1. Basic View

2. Towards the view

3. Detail view

4. Oblique view

5. Section view

1) Full section view

2) Half section view

3) Partial section view

4) Stepped section

5) Rotational dissection

6. Section diagram
The hypothetical use of a cutting plane to cut the machine part at a certain point, drawing only the projection of the cutting section shape and drawing the prescribed section symbol, is called a section diagram, abbreviated as a section.

General methods and steps for reading part drawings
1) First, take a look at the title bar to summarize and understand the parts
Look at the title bar to understand the part name, material, and proportion, in order to gain a general understanding of the function of the part and determine which type of part it belongs to based on its name. Judging the rough processing method of the part from the material. Determine the actual size of the part based on its proportion, in order to have a preliminary understanding of the part.
2) Analyze research views and imagine structural shapes
Look at the view, analyze the configuration of each view of the part and the relationship between the views, the expression method used, and the content expressed.
Using the methods of combination drawing, shape analysis, and line surface analysis to understand the structure of each part of the part, imagine the shape, relative position, and function of each part of the part.
3) Analyze all dimensions and clarify size requirements
Comprehensively analyze the view and form, analyze the dimensional benchmarks in the length, width, and height directions of the part, and then start from the benchmark, use structural shape analysis as a clue, understand the fixed and positioning dimensions of each form, clarify the role of each dimension, graphics and dimensions express the shape and size of the part. When reading the drawing, the view, size, and shape structure should be combined for analysis.
4) Analyze technical requirements and comprehensively understand the entire picture
When reading drawings, it is necessary to clarify technical requirements such as surface roughness, dimensional tolerances, and positional tolerances. Understand the meaning of its code name. If necessary, contact the parts related to the part for analysis together.