Teaching aid for three views

Abstract

The invention relates to a teaching aid for three views. The teaching aid for the three views is portable, rich in function and good in accuracy. According to the technical scheme, a front plate, a side plate and a horizontal plate are quadrangles equal in dimension, the edges of the quadrangles are 170+ / -10 mm, a tool for theoretical study is arranged on the front face of the teaching aid, a living example material tool is arranged on the reverse face of the teaching aid, corresponding axis dimension marks with dimension lines, dimension figures and axis names are arranged on the faces respectively, view shortened form marks are arranged in the middles of three front faces respectively, relative position marks are arranged on the upper portion , the lower portion, the left portion and the right portion of each view shortened form mark respectively, three views of a part are arranged on three rear faces, three views of a point are arranged on the three rear faces, and each point is marked. The teaching aid is suitable for classroom teaching of a teacher, suitable for self-study of students, suitable for three-view teaching of colleges and universities and suitable for three-view teaching of middle schools.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a three-view teaching aid. Background technique [0002] "Mechanical Drawing" is an important backbone technical basic course for engineering students. It occupies an important position in the talent training system of engineering science, especially mechanical engineering science. The whole foundation and foundation of "Mechanical Drawing" is the three views, understanding and mastering The principle of view and the method of reading it are very important to learn mechanical drawing well. The three-view is the focus and difficulty of the course "Mechanical Drawing". If you can't learn three-view, the rest of the course content will be even more difficult to start. Some students feel tired of learning because they can't learn three-view, and then give up learning. Now the teacher's teaching method for three-view is on the two-dimensional blackboard. Drawing the axonometric drawing and three-vie...

AI Technical Summary

Problems solved by technology

[0002] "Mechanical Drawing" is an important backbone technical basic course for engineering students. It occupies an important position in the talent training system of engineering science, especially mechanical engineering science. The whole foundation and foundation of "Mechanical Drawing" is the three views, understanding and mastering The principle of view and the method of reading it are very important to learn mechanical drawing well. The three-view is the focus and difficulty of the course "Mechanical Drawing". If you can't learn three-view, the rest of the course content will be even more difficult to start. Some students feel tired of learning because they can't learn three-view, and then give up learning. Now the teacher's teaching method for three-view is on the two-dimensional blackboard. Drawing the axonometric drawing and three-view of the part separately for explanation is not only complicated for the teacher to draw, but also because it is not intuitive enough, or some teachers use PPT to display the axonometric drawing and three-view of the part for explanation, which is not intuitive enough. The progress is fast, students do not have the opportunity to practice and think, and the effect of students' understanding is not satisfactory. How to display the concrete and abstract three-view in the most intuitive way, and guide students to observe and understand, has become a problem for every student. Research priorities for a conscientious cartography teaching or researcher

[0003] Some drawing teaching or research personnel have made efforts. The utility model patent with Chinese patent number: 200820039571.6 discloses a three-view projection teaching aid, which is composed of a base plate and two plates perpendicular to the base plate. Hinge connection, Chinese patent number: 200320129682.3 utility model patent discloses a three-view teaching aid, using a square plastic sheet or white cardboard with a certain thickness, and dividing it into four equal small squares according to the midpoint of each side, up and down, left and right , remove the small square on the lower right, fold the other three small squares in half along the bisecting line, and erect the three sides vertically. These two patents can form a space with three sides perpendicular to each other. It is used to explain and demonstrate the principle of three views. It is easy to make. It is easy to operate and contributes to our drawing teaching, but there are still some problems: 1. It is not portable enough to meet the needs of students to take it out for research or study at any time when they are studying or doing homework.

2. Insufficient functions, emphasizing practice and ignoring the study of theoretical knowledge, some teaching content of the three views cannot be reflected or satisfied

3. The accuracy is not enough, it is not convenient for rigorous and accurate teaching of three-view drawing

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