The order of disassembling and drawing the parts drawing from the general assembly drawing of the mold should be: first inside and then outside, first complicated and then simple, first forming parts, then structural parts.
- 1. Graph requirements: Must draw in proportion, allowing zoom in or zoom out. The view selection is reasonable, the projection is correct, and the layout is proper. In order to make the processing patent number easy to understand and easy to assemble, the graphics should be as consistent as possible with the general assembly drawing, and the graphics should be clear.
- 2. The dimensioning requirements are uniform, centralized, orderly and complete. The order of dimensioning is: first mark the dimensions of the main parts and the draft angle, then mark the matching dimensions, and then mark all the dimensions. Mark the matching dimensions on the non-main part drawing first, and then mark all the dimensions.
- 3. Surface roughness. Mark one of the most widely used roughnesses in the upper right corner of the drawing, such as “Remaining 3.2.” Other roughness symbols are marked on each surface of the part.
- 4. Other contents, such as part name, mold drawing number, material grade, heat treatment and hardness requirements, surface treatment, graphics ratio, processing accuracy of free size, technical description, etc., must be filled in correctly.