How to identify the flange drawings issued by the customer
In the flange production work, frequently contact with various drawings, use views, sections and sections to represent the internal and external structure of the flange, and the contour size and transformation of each part. Identifying drawings is a basic requirement in the work of technical cartographers. General methods and steps for identifying flange drawings are: (1) First, look at the title bar to summarize the parts The flange looks at the title bar to understand the part name, material and proportion, so as to generally understand the function of the part, and judge which kind of part the part belongs to from the name. Judging the general processing method of the part from the material. Judging the actual size of the part from the proportion, so as to have a preliminary understanding of the part. (2) Analyze and research the view, and imagine the structure and shape The flange looks at the view, analyzes the configuration and the relationship between the views of the part, the expression method and the expression content used, uses the identification method of combination, body analysis method and line analysis method to read the structure of each part of the flange part, imagine the shape, relative position and function of each part of the part. (3) Analyze all dimensions and clarify the size requirements Comprehensive analysis of view and shape, the analysis of flange parts long, width, high three directions of the size reference, and then starting from the benchmark, structure shape analysis as a clue, to understand the body shape and positioning size, understand the role of each size, graphics and size expression is the shape and size of the parts, when reading should combine the view, flange size and shape structure analysis. (4) Analyze the technical requirements, and comprehensively understand the whole picture When reading the drawing, understand the technical requirements of flange surface roughness, size tolerance and shape tolerance. Understand the code meaning. If necessary, also contact the part associated with the part for analysis.
