CN106781981A - Angle welding mechanical model teaching aid - Google Patents

Abstract

The invention discloses angle welding mechanical model teaching aid, including transparent straight triangular prism, the bottom surface of straight triangular prism is right angled triangle, it is cutting line with the vertical line of straight triangular prism bottom surface hypotenuse, straight triangular prism is cut into straight triangular prism I, straight triangular prism II, a tangent plane central spot sets coordinate points, an elongated slot is both horizontally and vertically opened respectively, and post is punched to perpendicular to tangent plane, straight triangular prism I, the corresponding prism side of the bottom surface hypotenuse of straight triangular prism II and elongated slot and hole post inwall set not homochromy coating.The present invention builds angle welding using the module of split adhesive, and with reference to the transparent body and different color coating, angle degree, face and direction force involved by displaying angle welding Strength co-mputation directly perceived, by knowledge point hard to understand, analysis directly perceived is explained, hence it is evident that improve teaching efficiency.

Description

Fillet weld mechanical model teaching aid

technical field

The invention relates to the field of teaching aids, in particular to a fillet weld mechanics model teaching aid.

Background technique

In the teaching of civil engineering, the calculation of fillet weld strength is one of the extremely important knowledge points. Because it involves multiple internal angles, surfaces and directional forces, students need to have a strong spatial thinking. In class, only draw pictures on the blackboard Explain that many students find it difficult to understand, which greatly affects the teaching effect and progress. If a teaching model that can be dissected separately is developed, this problem will be effectively solved.

Contents of the invention

The technical problem to be solved by the present invention is to provide a fillet weld mechanics model teaching aid. The detachable transparent body model can fully show the angles, surfaces and directional forces that students need to know, intuitively teach, and significantly improve the teaching effect.

The present invention is realized through the following technical solutions:

Fillet weld mechanical model teaching aids, including transparent right triangular prism, the bottom surface of the right triangular prism is a right triangle, characterized in that the right triangular prism is divided into straight three For prism I and straight triangular prism II, a coordinate point is set at the center point of the tangential plane, a long groove is opened in the horizontal and vertical directions respectively, and a hole is drilled perpendicular to the tangent plane. The sides of the prisms, the long grooves and the inner walls of the holes are provided with different colored coatings. The split structure can display the internal cut surface, the transparent right triangular prism and the surface with different colors and the directional force can be intuitively displayed, so that students can see it clearly at a glance.

A further improvement solution of the present invention is that a magnetic attraction layer is provided on the cut surface. The magnets are attached, which is convenient for the stable superposition of the model and easy disassembly.

The further improvement solution of the present invention is that it also includes an arc-shaped body whose side plane is the side plane of the prism corresponding to the hypotenuse of the bottom surface of the right triangular prism. The curved body is the part that needs to be displayed during lectures, and the structure is split to participate in the analysis.

A further improvement of the present invention is that a magnetic attraction layer is provided on the side plane of the arc-shaped body and the side of the prism corresponding to the hypotenuse of the bottom of the right triangular prism.

The further improvement of the present invention is that it also includes a right-angle module composed of a vertical surface and a transverse surface, the right-angle connection surface of the right-angle module and the prism side coating corresponding to the bottom hypotenuse of the right triangular prism I and II. There is a magnetic attraction layer. The overall suction shows the actual status of fillet welding, which is more intuitive.

A further improvement solution of the present invention is that the bottom surface of the right triangular prism is an isosceles right triangle.

A further improvement solution of the present invention is that the long groove and the hole post are arrow-shaped. Arrow-shaped markings more intuitively represent directional forces.

Compared with the prior art, the present invention has the following obvious advantages:

The present invention adopts separate suction modules to build fillet welds, and combines transparent bodies and different color coatings to visually display the included angle, surface and directional force involved in the calculation of fillet weld strength, and intuitively understand obscure knowledge points Analysis and explanation can significantly improve the teaching effect.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Figure 2 is a transparent right triangular prism end view.

Fig. 3 is a perspective view of the present invention superimposed on a straight angle module.

Figure 4 is a mechanical dissection diagram of a fillet weld.

detailed description

As shown in Fig. 1-3, the present invention comprises transparent straight triangular prism 1, and the bottom surface of right triangular prism is a right-angled isosceles triangle, with the vertical line of the hypotenuse of the bottom surface of right triangular prism as the tangent line, the straight triangular prism 1 is cut Form a straight triangular prism I 11, a straight triangular prism II 12, set a coordinate point at the center point of the tangent plane 2, open a long slot 21, 22 in the horizontal and vertical directions respectively, and punch a hole 23 perpendicular to the tangent plane, the straight triangular prism 1. The side surfaces 4 and 5 of the prism corresponding to the hypotenuse of the bottom surface of the straight triangular prism II and the inner walls of the long grooves 21, 22 and the hole pillars 23 are provided with different colored coatings 6, and the long grooves 21, 22 and the hole pillars 23 are arrow-shaped. A magnetic attraction layer 7 is provided on the cut surface 2 .

Also include the arc body 3 with the prism side corresponding to the hypotenuse of the bottom surface of the right triangular prism 1 as the side plane and the right angle module 9 formed by the vertical surface and the transverse plane, the side plane 31 of the arc body 3 and the arc body 3 with the straight triangular prism 1. A magnetic attraction layer 7 is provided on the side 8 of the prism corresponding to the hypotenuse of the bottom. The right-angle connecting surface of the right-angle module 9 and the prism sides 4 and 5 corresponding to the hypotenuses of the bottom surfaces of the right-angled triangular prism I and II are provided with a magnetic attraction layer 7 above the coating.

Fig. 4 is a mechanical dissection diagram of a fillet weld. The present invention is a split structure of magnet attraction, combining its transparent body with the prism side faces 4, 5 and long slots 21, 21, 22 and hole column 23 inner walls are provided with coatings 6 of different colors, which can clearly show the included angle, surface and direction force involved in the calculation of weld strength.

Claims (7)

1. Fillet weld mechanical model teaching aids, including transparent right triangular prism (1), the bottom of the right triangular prism is a right triangle. (1) Divide into straight triangular prism I (11) and straight triangular prism II (12), set a coordinate point at the center point of the cut surface (2), and open a long slot (21, 22) in the horizontal and vertical directions respectively, and Drill a hole column (23) perpendicular to the cut surface, and the prism sides (4, 5) corresponding to the hypotenuse of the bottom surface of the straight triangular prism I and II, the long grooves (21, 22) and the inner walls of the hole column (23) are set differently. colored coating (6). 2. The fillet weld mechanics model teaching aid according to claim 1, characterized in that: the cut surface (2) is provided with a magnetic attraction layer (7). 3. The fillet weld mechanical model teaching aid according to claim 1, characterized in that it further comprises an arc-shaped body (3) whose side plane is the side plane of the prism corresponding to the hypotenuse of the bottom surface of the right triangular prism (1). 4. The fillet weld mechanical model teaching aid according to claim 3, characterized in that: the side plane (31) of the arc-shaped body (3) and the prism side ( 8) There is a magnetic attraction layer (7) on it. 5. The fillet weld mechanics model teaching aid according to claim 1, 2 or 3, characterized in that: it also includes a right-angle module (9) composed of a vertical surface and a transverse surface, the right-angle connection surface of the right-angle module (9) and A magnetic attraction layer (7) is provided above the coating on the sides of the prisms (4, 5) corresponding to the hypotenuses of the bottom surfaces of the straight triangular prism I and II. 6. The fillet weld mechanical model teaching aid according to claim 1, characterized in that: the bottom surface of the right triangular prism (1) is an isosceles right triangle. 7. The fillet weld mechanical model teaching aid according to claim 1, characterized in that: the long slots (21, 22) and hole posts (23) are arrow-shaped.