Portable multifunctional geometric tolerance display box

Abstract

The invention discloses a portable multifunctional geometric tolerance display box which is mainly used for displaying geometrical tolerance zones, and belongs to the teaching field. Two small flat plates driven by a pinion and rack mechanism are arranged on the inner wall of the left side face of the portable multifunctional geometric tolerance display box, a hole is formed in the right end of the top surface, and four small flat plates are embedded in the hole. A round hole is formed in the upper middle portion of the front face of the portable multifunctional geometric tolerance display box, a series of coaxial cylinders are fixed, an arch-shaped hole is formed in the upper right portion, and an arch-shaped combination is arranged in the arch-shaped hole. Three through grooves in the lower portion of the front face and guide grooves formed in the left face and the right face are used for restraining and fixing the four small flat plates. An inclined hole is formed in the rear face and used for containing and fixing a cylinder containing the movable cylinders. A round hole is formed in the left side face, and a gear shaft is arranged in the round hole. The portable multifunctional geometric tolerance display box has the advantages that teaching aids are brought in a classroom, twelve geometric tolerance projects are showed to students, and the portable multifunctional geometric tolerance display box assists teachers and students in completing teaching and learning of related knowledge. Theoretical knowledge is combined with physical display, and learned knowledge is understood more easily and more memorable. In addition, the portable multifunctional geometric tolerance display box is multiple in functions, simple in structure and convenient to carry.

Description

technical field [0001] The invention relates to a teaching aid for displaying geometric tolerance zone items, in particular, 12 geometric tolerance items can be displayed respectively in one teaching aid box. Background technique [0002] Interchangeability and the basis of measurement technology is a basic technology course for mechanical engineering and automation majors. It has great guiding significance for students to continue their studies and work in the future. appear more important. In order to connect theory with practice, teaching aids naturally play an irreplaceable role as a bridge. At present, the known teaching aids for displaying geometric tolerances are to model individual tolerance items and show them to students one by one. Too many tolerance items produce a large number of teaching aid models, which constitute the so-called geometric tolerance display cabinet. As a result, the display teaching aids that should have entered the classroom can only be plac...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defects of large volume, static display and inability to enter the classroom, the present invention provides a portable multifunctional geometric tolerance display box. The teaching aid display box integrates 12 tolerance items, and the quality and volume are greatly reduced. It can be easily brought to the classroom, so that students can intuitively feel the shape and position of the tolerance items they have learned while learning theoretical knowledge, and some tolerance items can be dynamically displayed, giving students a visual impact and making students understand knowledge better. Thorough, more difficult to forget

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