Structural design can be divided into development design, adaptive design and variant design. Product structure design and development process can be divided into the following stages：
According to the customer's project design requirements, the development department, sales department and quality control department participate in the project review meeting to determine the feasibility of the project and the project development leader who is responsible for the overall planning of the project and then prepare the design task book and new product cost budget table.
After determining the development project, the graphic design engineer will complete the graphic design effect drawing within one week.
1) Meeting convened by the project leader to review the effect drawing, including:
A. Feasibility of the structure.
B. Packaging scheme
C. Appearance color matching.
D. Material requirements for parts.
E. Whether the function is feasible.
2) If problems are found in the review, timely propose modification suggestions and redo the effect drawing.
3) Make a good review report.
1) At this stage, structural engineers and electronic engineers are jointly responsible for the work.
2) The structural engineer designs the structure drawing with PROE(or other software) according to the effect drawing. If in the drawing process is found on the PROE can not be done, or can not be out of the mold should be put forward in time to see whether you can change the appearance requirements. Ordinary structure drawings must be completed within 5 days, complex structure drawings must be completed within 7 days.
3) Consider the following problems when making structure drawings:
A. Shrinkage of plastic parts.
B. Draft angle of the mold.
C. Production assembly problems.
D. Packaging protection.
1) Provide documents (2D drawings, 3D drawings) for the mold department to make the mold.
The mold department is required to provide the mold review result after receiving the drawing file. (If the product performance is not affected, the structure drawing can be changed according to the situation reflected by the mold department.)
2) Require the mold department to provide within three days of receiving the product drawing:
Mold structure drawing (3D drawing, 2D drawing), mold drawing should be reviewed and confirmed by the engineer.
3) Mold opening schedule.
4) Mold structure review content: parting surface,ejection pin and material.
The first project prototype must meet the requirements:
A. There is no obvious clamping and sticking phenomenon.
B. The dimensions of the parts must be within drawing tolerances.
C. There are no significant deformations in the parts.
D. Try to assembly to see if there is any problem.
1) The structural engineer shall be responsible for holding the pre-production meeting two days before the trial production: the participating departments shall have quality control, production, sales, procurement and warehouse.
2) Confirm that the production line can produce the required products, and familiarize the production line with the new production process.
3) Production engineering to confirm the process flow is reasonable, and check the working time, fixture is suitable for use.
1) In order to ensure that the production line can make products according to product quality standards, the engineers of the development department should follow up during the production of the first two batches of goods, and if problems are found, they must be dealt with in time.
2) All changes and production considerations should be documented in an Engineering Decision Memo (EDM). If the sales department has special requirements, it should be converted into engineering data and distributed to each department according to the requirements (such as updating material sheets, drawings, etc.).
