Pay special attention during the mechanical design process

　　The following points should be paid special attention to during mechanical design:

　　1. Kinematics calculation of the machine: According to the determined structural scheme, determine the parameters of the prime mover (power, rated speed, conversion rate, etc.); then perform kinematic calculations to determine the motion parameters of each moving component (speed, linear velocity, acceleration, etc.).

　　2. Dynamics calculation of the machine: Combining the structure and motion parameters of each part (torque, pressure, heat, etc.), calculate the load and yield strength of each main part, and perform accurate verification calculations for some important main parts with complex shapes and stress conditions.

　　3. Calculation of the working capacity of parts: The calculation criteria should be reasonably determined based on the general failure conditions, working characteristics, and environmental conditions of parts and components. Generally, there are criteria such as strength, stiffness, vibration stability, and life. Through calculation or analogy, the basic dimensions and material strength of parts and components can be determined.

　　4. Design of assembly drawings: The drawings should show the shape and dimensions of all parts, and the structure and dimensions of each part, as well as the matching tolerances, should be well coordinated. The materials, structure, and processability of the designed parts should be comprehensively considered to ensure that all parts have a reasonable design.

　　In order to meet the high requirements of mechanical product performance, computer technology is widely used in mechanical design for auxiliary design and system analysis. Selecting suitable mechanical design software is also very important. Currently, the mainstream 3D design software in China mainly includes the following:

　　Solidworks: It is biased towards mechanical structural design. This software is simple and easy to learn, has high drawing efficiency, and can directly refer to existing parts to generate new parts in assembly design. Whether the design uses a "top-down" or "bottom-up" method for assembly design, SolidWorks will greatly improve design efficiency with its easy-to-use operation.

　　Pro/Engineer: The design is based on a unified database. All data in the project comes from a single database. It is recognized and promoted by the industry as a new standard in the field of mechanical CAD/CAE/CAM in the world today, and is one of the mainstream mechanical design software. It occupies an important position in the domestic product design field. Compared with Solidworks 3D software, this software is slightly more difficult, but it has greater advantages in surface modeling and processing of more complex structures.

　　UG (UnigraphicsNX): It has powerful functions and can easily realize the construction of various complex entities and models. It provides users with digital modeling and verification methods and synchronous modeling for product design and processing, so it has become a mainstream application in the mold industry's 3D design.

　　CATIA: It has advanced hybrid modeling technology. Whether it is solid modeling or surface modeling, users can easily and quickly modify products under the intelligent tree structure. CATIA's advantages lie in its pleasing interface, and its easy-to-use and powerful functions have strong advantages in specialized industries such as automobiles, aerospace, and shipbuilding.

　　Mastercam: It integrates various functions such as 2D drawing, 3D solid modeling, surface design, voxel splicing, NC programming, tool path simulation, and realistic simulation. Powerful and stable modeling functions can design complex curves and surface parts, while reliable tool path verification functions simulate the entire process of part processing. Therefore, Mastercam's strength lies in NC machining, it is simple and easy to use, and the generated NC program is simple and efficient.

　　With the development of science and technology, the future of mechanical design will move towards intelligence, requiring the integration of theories and ideas from multiple disciplines. Traditional mechanical design relies more on the knowledge, experience, and skills of individual mechanical engineers. However, in the era of intelligent big data, engineers can gradually use artificial intelligence, big data, cloud networking, additive manufacturing, and other high-tech technologies to accelerate the speed of design and improve the quality of design, better meeting the needs of increasingly fierce market competition. In the future, there will be professional, authoritative, and standard design libraries for various industries. Engineers can quickly generate design solutions by inputting design requirements along with parameters such as materials, manufacturing methods, and cost constraints. Through the continuous iterative learning of the artificial intelligence system, the generated design solutions will become more and more mature and advanced. Some complex structural forms may not be achievable with traditional manufacturing methods, but can be easily realized using advanced additive manufacturing methods such as 3D printing.

　　Under the influence of various technological revolutions in the new era, mechanical design will become more intelligent and modular, mechanical products will become lighter and greener, and the possibility of mechanical design engineers working remotely will greatly increase. In the future, after engineers communicate with customers on-site and understand their opinions and requirements, they can open the artificial intelligence mechanical design interface on their mobile phones, input relevant technical parameters and requirements, and the artificial intelligence will retrieve the expert database and conduct in-depth learning exploration to quickly outline a conceptual design scheme and further communicate with the customer. With the support of artificial intelligence and big data, the mechanical design cycle can be greatly shortened, allowing products to quickly enter the market!