Major mistakes that must not occur in the design of non-standard automated machinery:

1. Cannot be disassembled;

2. There are potential safety hazards;

3. Serious interference occurs;

4. There is a big mistake in the selection;

5. The wealth of equipment capabilities is too large;

6. The material selection of important parts is wrong;

7. Designs that violate laws and regulations;

8. The main dimensions, elevations, coordinates, etc. are wrong;

9. Failure to meet functional requirements and production capacity requirements;

10. There are big errors in the formulas and parameters in the calculation book;

11. Does not conform to the content of the contract, or matters decided by the customer and the company's internal meeting;

12. No design basis (excluding empirical design or feasible innovative design, invention design);

Some common mistakes that are easy to make in the mechanical design of non-standard automation equipment:

1. The view is wrong;

2. General collision;

3. Does not meet the drawing regulations;

4. General size error;

5. Insufficient calculations (calculations);

6. Errors in the bill of materials and parts list;

7. There is inconvenience in overhaul and maintenance;

8. Errors in text or sentences;

9. Tolerance, roughness, geometric accuracy, etc. are wrong or insufficient;

10. The technical requirements and operating requirements (notes on the drawings) are not enough;

A few details that are easy to overlook in mechanical design:

1. Accurately compile technical requirements;

2. Reasonable design and processing roughness;

3. The cross-sectional view of the oil seal reflects the direction of the oil seal;

4. Double nuts are loose in connection design of large pieces;

5. Distinguish between on-site welding parts and factory welding;

6. Indicate special welding that is not required for general welding;

7. The safety cover is designed for the rotating part (with an observation door);

8. Bolt connection parts are designed with positioning pins or positioning blocks;

9. Safety design for working state and non-working state;

10. Design positioning and bearing adjustment bolts for bearing seat installation position;

11. Improve the design of linear tolerances, fit tolerances and geometric tolerances;

12. Design adjustment gaskets for connecting surfaces involving height changes or adjustments;

13. Design lifting screw holes or lifting lugs for parts weighing more than 20 kilograms;

14. The range of motion (start and end positions) and motion trajectory expression of the moving parts;

15. Strengthen load-bearing parts (such as stiffeners) and weaken non-load-bearing parts (such as weight-reducing holes);