Several common difficulties in the research of non-standard automation equipment are corrected in detail

2021-02-26 13:39:47 浙江铭君自动化设备有限公司 Viewd 137

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);