Can accurately express the composition of the mechanism and transmission, can be used as the basis for research and analysis of the mechanism of motion and force and the design of new mechanism of reference materials. Leave aside those external forms that have nothing to do with the movement of the mechanism, such as the cross-sectional dimensions of the member, the number of parts that make up the member and the specific structure of the moving pair.
And decide the nature of the mechanism of the movement of the essence of things, such as the number of movement vice, type, relative position and certain dimensions, etc. Abstracted, a clear representation of the composition of the machinery, the mechanism of the movement transfer relationship, in order to facilitate the movement of the machinery and power analysis.
Application and significance
Institutional motion sketch symbols is an important symbol language gradually developed through hundreds of years of mechanical engineering practice, is to carry out abstract thinking, the realization of the thinking of the concrete tool". With the help of these symbols, designers can accurately describe the needs of human society for machines and conceive conceptual designs (mechanism motion sketches) that realize the intended motion.
The kinematic sketch of the mechanism, obtained by synthesizing the elements that make up the machine according to the requirements of the desired motion function, clearly describes the conceptual structure of the machine and the interrelationships among its components, and determines the form of connection and relative motion between the various components. The use of mechanism motion sketch in the computer simulation, can realize the movement trajectory reproduction, used to test the realization of the machine's intended motion function.
With the help of institutional motion diagram, people can establish a mathematical model of the mechanics of the machine system, analyze its motion, power characteristics, solve the role of the components on the force for further selection of parts and materials and their load-bearing capacity to lay the foundation for the design.