A. Draw the general assembly structure diagram
The ratio of 1:1 should be adopted as much as possible for drawing the general assembly drawing, starting from the cavity, and drawing the main view and other views at the same time.
The mold assembly drawing should include the following:
①Moulding part structure
②The structure of pouring system and exhaust system.
③Parting surface and parting method.
④Shape structure and all connectors, positioning and position of guides.
⑤Mark the height dimension of the cavity (not mandatory, as needed) and the overall size of the mold.
⑥ Auxiliary tools (picking and unloading tools, calibration tools, etc.).
⑦Compile all the part numbers in order, and fill in the schedule.
⑧ Mark the technical requirements and instructions for use.
B. The technical requirements of the mold assembly drawing:
① Performance requirements for certain systems of the mold. For example, the assembly requirements for the ejection system and the core-pulling structure of the slider.
② Requirements for mold assembly process. For example, after the mold is assembled, the lamination gap of the joint surface of the parting surface should not be greater than 0.05mm. The parallelism requirements on the upper and lower sides of the mold should be specified, and the size determined by the assembly and the requirements for this size should be indicated.
③Mould use, assembly and disassembly methods.
④ Requirements for anti-oxidation treatment, mold number, lettering, marking, oil seal, storage, etc.
⑤ Requirements for mold testing and inspection.
C. Draw all parts diagrams
The order of dismantling and drawing part drawings from the mold assembly drawing should be: first inside and then outside, first complex and then simple, first forming parts, and then structural parts.
①Graphic requirements: must be drawn in proportion, and zoom in or zoom out is allowed. Views are well chosen, projections are correct, and arrangements are well made. In order to make the processing patent number easy to understand and easy to assemble, the graphics should be consistent with the general assembly drawing as far as possible, and the graphics should be clear.
② Dimensioning requires uniformity, concentration, order and completeness. The order of dimensioning is: first mark the main part size and draft angle, then mark the matching size, and then mark all the dimensions. On the drawings of non-main parts, first mark the matching dimensions, and then mark all the dimensions.
③ surface roughness. Mark the most widely used roughness on the upper right corner of the drawing, such as marking "the rest 3.2." Other roughness symbols are marked on each surface of the part.
④ Other content, such as part name, mold drawing number, material grade, heat treatment and hardness requirements, surface treatment, graphic ratio, machining accuracy of free size, technical description, etc. must be filled in correctly.
D. Proofreading, drawing review, tracing, and sending.
