Novel numerical control gear shaping machine demonstration instrument and demonstration method thereof

Abstract

The invention provides a novel numerical control gear shaping machine demonstration instrument and a demonstration method thereof. The demonstration instrument comprises a frame, a gear printing mechanism and a horizontal feeding mechanism. The demonstration instrument finishes demonstration under a combined action of horizontal feeding movement of ground paper on the horizontal feeding mechanism, enveloping movement of a gear shaper cutter and the ground paper and up-and-down movement of the gear shaper cutter in the gear printing mechanism. The novel numerical control gear shaping machine demonstration instrument can change the center distance between two shafts, the number of teeth to be drawn, the drawing speed and the like through changing parameters at a PC end, thereby being capable of drawing a standard gear and a profile shifted gear and comparing similarities and differences of the two gears, also being capable of demonstrating an undercutting phenomenon. The novel numerical control gear shaping machine demonstration instrument is reasonable in overall arrangement of mechanisms, small in overall size, safe, reliable, and suitable for carrying out demonstration for students in an experiment course.

Description

technical field [0001] The invention relates to a fan-cheng principle experiment teaching aid, in particular to a novel numerical control gear shaping machine demonstration instrument and a demonstration method. Background technique [0002] Fancheng principle experiment demonstration teaching aid, the purpose is to enable students to grasp the basic principle of manufacturing involute gears with Fancheng method by observing the teaching aid model, understand the reasons for gear undercutting phenomenon and avoid undercutting methods, and at the same time analyze and compare the standard Similarities and differences between gears and shifting gears. [0003] In our country, there has not been a similar NC gear shaping machine demonstrator, and the Fancheng principle demonstration work is mainly completed by the wire transmission gear Fan Chengyi. However, based on the important role of demonstration teaching aids and the many defects of Fan Chengyi's line drive gear, it is ...

AI Technical Summary

Problems solved by technology

During the experiment, Fan Chengyi of the linear transmission gear required students to manually draw the envelope of the tooth profile, which often took a lot of time to complete the drawing of a tooth profile, which greatly affected the efficiency of the experiment

(2) It is not conducive to the teacher's teaching demonstration

Due to the low efficiency of linear transmission gear fan Chengyi, in the class with limited time, the teacher cannot personally demonstrate the drawing process of a gear

(3) The experimental results cannot be guaranteed

Since the centering and drawing in the operation process are completely done manually, the accuracy cannot be guaranteed, so there is a certain deviation in the drawn graphics

In addition, it is easy to get dirty during the drawing process, and the paper surface will be damaged, which will affect the observation effect

(4) The demonstration of the actual gear processing process is not intuitive enough

Fan Chengyi’s drawing of the gear contour envelope is a simplification and abstraction based on the principle, which is quite different from the actual gear shaping process, which is not conducive to students’ observation and understanding

Images