Special attention should be paid to the process of mechanical design

During the process of mechanical design, special attention should be paid to the following points:

1. kinematics calculation of the machine: determine the parameters of the driving parts (power, rated speed, conversion rate, etc.) according to the determined structural scheme; Then do kinematics calculation to determine the motion parameters of each moving component (speed, linear speed, acceleration, etc.)
2. Dynamic calculation of the machine: Based on the structure and motion parameters of each part (torque, pressure, heat, etc.), calculate the magnitude and characteristics of the load and yield strength of each main component, and accurately verify and calculate some important or complex appearance and force conditions of the main components
3. Calculation of the working capacity of parts: The calculation criteria must be reasonably formulated based on the general failure conditions, working characteristics, environmental conditions, etc. of the parts and components, generally including strength, stiffness, vibration stability, lifespan, etc. By calculation or analogy, the basic dimensions and material strength of components can be determined
4. Design of assembly sketches: Structured design is required for the appearance and dimensions of all parts on the sketch, and factors such as the structure, dimensions, and fit tolerances of each part need to be well coordinated. The material, structure, and craftsmanship of the designed parts need to be comprehensively considered to ensure the most reasonable design of all parts
In order to meet the high performance requirements of mechanical products, computer technology is widely used in mechanical design for auxiliary design and system analysis, and selecting appropriate mechanical design software is also very important. At present, the mainstream 3D design software in China mainly includes the following:

Solidworks: Focusing on mechanical structure design, this software is simple and easy to learn, with high drawing efficiency. In assembly design, new parts can be directly generated by referencing existing parts. Regardless of the design; From top to bottom” Method or&quo; Bottom to Top” SolidWorks will greatly improve the efficiency of assembly design with its easy-to-use operation
Pro/Engineer: Design is based on a unified database at the grassroots level, and all information in engineering comes from a single database. As a new standard in the field of mechanical CAD/CAE/CAM in the world, it has been recognized and promoted by the industry. It is one of the mainstream mechanical design software nowadays, especially occupying an important position in the domestic product design field. Compared to Solidworks 3D software, this software is slightly more difficult and has significant advantages in surface modeling and complex structural processing
UG (Unigraphics NX): It has powerful functions and can easily construct various complex entities and shapes. It also provides digital modeling and verification methods as well as synchronous modeling for users' product design and processing processes, making it a mainstream application in 3D design in the mold industry
CATIA: It has advanced hybrid modeling technology, whether it is solid modeling or surface modeling, and users can easily and quickly modify products in an intelligent tree structure. The advantage of CATIA lies in its pleasing interface, which is easy to use and powerful in specialized industries such as automobiles, aerospace, shipbuilding, etc
Mastercam: It integrates many functions such as 2D drawing, 3D solid modeling, surface design, voxel assembly, NC programming, tool path simulation and realistic simulation. The powerful and stable modeling function can design complex curve and surface parts, while the reliable tool path verification function simulates the entire process of part processing. So Mastercam's strength lies in its simplicity and ease of use in CNC machining, resulting in a simple and efficient NC program
With the increasing development of science and technology, the future of mechanical design will move towards intelligence, requiring the comprehensive application of theories and ideas from multiple disciplines. Traditional mechanical design relies more on the personal knowledge, experience, and skills of mechanical engineers. In the era of intelligent big data, engineers can gradually utilize high-tech technologies such as artificial intelligence, big data, cloud networking, and additive manufacturing to accelerate the speed and improve the quality of design, and better meet the increasingly fierce market competition needs. In the future, there will be professional, authoritative, and standard design libraries required by various industries. Engineers can quickly generate design solutions by inputting design requirements along with parameters such as materials, manufacturing methods, and cost constraints. Through continuous iterative learning of artificial intelligence systems, the produced design solutions will become more mature and advanced, and even some complex organizational forms cannot be achieved by traditional manufacturing methods, However, using advanced additive technology such as 3D printing and other manufacturing methods can be easily achieved
Under the influence of various technological revolution in the new era, mechanical design will become more intelligent and modular, mechanical products will be lighter and greener, and the possibility of mechanical design engineers' mobile office will be greatly improved. In the future, after the engineers communicate and dock with the customer's opinions and requirements on site, they can open the artificial intelligence mechanical design interface of the phone on the spot, input relevant technical parameters and requirements, and access the expert database for deep learning and exploration. This will quickly outline a set of conceptual design solutions and further communicate with the customer. With the support of artificial intelligence and big data, the cycle of mechanical design can be greatly reduced, allowing products to quickly enter the market