Gear shaper teaching aid

Abstract

The invention provides a gear shaper teaching aid. A motor is connected with a camshaft through a first belt, and a small cam is fixed to the camshaft to provide kinetic energy for a slider-crank mechanism; a first belt pulley at the other end of the camshaft is coaxially connected with a first worm through a second belt and a first gear, and a first worm wheel is connected with a gear shaper cutter through a first shaft; the first worm wheel is connected with a second shaft through a universal-joint mechanism, and a wax mould is connected to the second shaft; and under driving by the motor, acam drives a connecting rod and a spring to achieve gear shaping movement of the gear shaper cutter, the motor is engaged with the first gear and a second gear through the first belt pulley and the second belt, the motor can drive the three gears to rotate synchronously when rotating, thus the two parts of the gear shaper cutter and the wax mould are in synchronous transmission, transmission accuracy is ensured, and meanwhile the requirement of the transmission ratio of the gear shaper cutter to the wax mould is also met. The gear shaper teaching aid is simple in mechanical structure, economical, practical, long in service life, safe and reliable; and the transmission process of an industrial gear shaper is simplified, convenient observation and imitation by students are facilitated, andthe theory and the practice are combined.

Description

technical field [0001] The invention relates to a teaching aid, in particular to a gear shaping machine teaching aid. Background technique [0002] The machinery manufacturing industry plays an extremely important role in the national economy and is an important pillar of national and regional economic development. Gear mechanism is the most widely used mechanism in various machines. However, with the development of advanced technology, even the most basic gear machining experiments are not common in our laboratory. In the past, there was almost no way to show students the processing methods and forming principles of various gears in the classroom, and they could only rely on the gear fanning method in the experiment to experience the gear processing process. The relevant knowledge of gear transmission is very important in the course of mechanical principles. In class, the teacher can only play some videos of gear processing at most, and cannot allow students to observe th...

AI Technical Summary

Problems solved by technology

[0003] At present, the existing gear-making experimental machine is a model made of industrial gear-shaping machine tools in a certain proportion. The structure is too complicated, and there is no teaching pertinence. Students cannot operate it by themselves, and it is not very helpful for students to understand gear processing.

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