Mechanical cam and electronic cam performance contrast teaching system

Abstract

The invention relates to a mechanical cam and electronic cam performance contrast teaching system and belongs to the technical field of mechanical engineering. The system comprises a swing cam performance comparator, a translation cam performance comparator, a controller and a PC. According to the system, a conventional mechanical cam mechanism and an electronic cam mechanism are integrated. In machinery lessons, student's view and understanding of knowledge points can be expanded, student's innovation consciousness is enhanced, the superiority of an electronic cam is learnt about, and the problem that students do not distinguish working conditions in the actual design process and blindly use the electronic cam to replace a mechanical cam is solved, teachers' classroom teaching is also facilitated, and novel thinking is provided for the cam and other mechanism scheme design. The system is convenient to carry and has very good practical value. A relevant electronic cam technology in the teaching system can be widely applied to actual industrial production, the industrial production efficiency can be improved, the cost is reduced, and the maximum value of the technology is achieved.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering, and in particular relates to a performance comparison teaching system of a mechanical cam and an electronic cam. Background technique [0002] The cam mechanism is one of the important transmission forms in the field of mechanical engineering. Ensuring that the follower achieves the required motion law is the key to the parameter design of the cam mechanism; therefore, in the teaching process of mechanical courses, the design theory of the cam mechanism is explained with the aid of the teaching aids of the cam mechanism. It is of great significance to enable students to deeply understand its motion characteristics and develop design ideas, but the existing cam teaching aids still have great limitations and cannot meet the needs of modern mechanical engineering teaching. [0003] For example, the authorized announcement number is CN204102452U "a teaching aid for a direct-moving foll...

AI Technical Summary

Problems solved by technology

[0002] The cam mechanism is one of the important transmission forms in the field of mechanical engineering. Ensuring that the follower achieves the required motion law is the key to the parameter design of the cam mechanism; therefore, in the teaching process of mechanical courses, the design theory of the cam mechanism is explained with the aid of the teaching aids of the cam mechanism. It is of great significance to enable students to deeply understand its motion characteristics and develop design ideas, but the existing cam teaching aids still have great limitations and cannot meet the needs of modern mechanical engineering teaching

[0003] For example, the authorized announcement number is CN204102452U "a teaching aid for a direct-moving follower cam mechanism". To achieve different motion laws, it is necessary to reprocess a new cam, which is very cumbersome

[0004] The application publication number is CN102825196A "A New Type of Electronic Cam Mechanism". Although this kind of electronic cam has a novel structure, it is used in teaching. Because there is no traditional mechanical cam for comparison, it is impossible to give students such a clear understanding-electronic cam and What are the respective working conditions of mechanical cams and when can they be interchanged

[0005] To sum up, the existing cam teaching device is only a demonstration of the motion form, because one cam profile can only correspond to one motion law, and to change the motion law, it is necessary to process a new cam, which is time-consuming, laborious, and costly; What is the difference between the motion rules of the cam and the mechanical cam follower, what working conditions are applicable to each, and the interchangeability under what conditions are all subjects that need to be studied in depth. For the existing electronic cams, due to the lack of mechanical cams contrast, it is difficult for students to have a clear and accurate understanding of its applicability

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