Split-type circular broach teaching aid based on 3D printing

Abstract

The invention relates to a split-type circular hole broach teaching tool based on 3D printing, which comprises a front shank, a neck, a transition cone, a leading part, a rough cutting tooth, a fine cutting tooth, a precision tooth and a rear guide part, a rough cutting tooth, a fine cutting tooth and a calibration tooth part, which are cut along an intermediate section. The cross-sections betweenthe split structures can show the cross-sectional shape and size of different parts of the broach, the cross-section can show the shape of rough cutting teeth, fine cutting teeth and calibration teeth, and the whole structure of the broach can be displayed after assembly. A strong magnet is embedded in the cross section between the split structures, and the split structures of broaches are assembled by magnet suction, which is firm in combination and convenient in use. The split structures are printed with different colors of materials to enhance the demonstration effect of teaching aids. A magnetic separator is arranged on that back surface of the mutual attracting magnet between adjacent two split structure to eliminate interference between adjacent two groups of non-attracting magnets.All split structures are hollow structures printed in 3D. The teaching aids make full use of the advantages of 3D printing technology in model manufacturing and visually display the tool structure ofcircular broach, which has the advantages of high strength, small quality, no odor, clean and environmental protection, low price, no waste of materials and low cost, and can play a good classroom demonstration effect and improve the acceptance of tool knowledge of students.

Description

technical field [0001] The invention relates to a split-type round hole broach teaching aid based on 3D printing, which belongs to the field of teaching instruments. Background technique [0002] The mechanical manufacturing engineering course trains students to have the basic ability to choose machine tools and cutting tools reasonably and to determine the processing method of typical parts, which lays the foundation for the study of professional courses of CNC machining and mold design. Among them, the knowledge about knives requires students to be familiar with the structure of knives. Due to the weak basic knowledge of mechanical drawing and the lack of spatial imagination, most of the students have difficulty imagining the specific structure of the tool due to the small cutting part of the real tool. The traditional cutting tool teaching model is made by bonding and splicing plexiglass plates, which has the problems of less cross-sectional information reflected, inconv...

AI Technical Summary

Problems solved by technology

Due to the weak basic knowledge of mechanical drawing and the lack of spatial imagination ability of most students, it is difficult to imagine the specific structure of the tool due to the small cutting part of the real tool

The traditional cutting tool teaching model is made by plexiglass plate adhesion and splicing method, which has the problems of less cross-sectional information reflected, the connection of components is not convenient and reliable enough, and the strength is low

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