Cambered surface cam grinding center based on reducing grinding wheel grinding

Abstract

The invention discloses a cambered surface cam grinding center based on reducing grinding wheel grinding. The cambered surface cam grinding center comprises a grinding wheel main spindle box; a grinding wheel spindle is arranged in the grinding wheel main spindle box; and the grinding wheel spindle is provided with grinding wheels which are reducing grinding wheels of which diameters can be changed. When the grinding center processes a cambered surface cam, as the diameters of the grinding wheels adopted by grinding can be changed to compensate the abrasion of the grinding wheels in the grinding process, and ensure that the external diameters of the grinding wheels keep stable in the grinding process, the planet grinding mode used in the prior art can be completely abandoned, and the cambered surface cam grinding center has the characteristics of high grinding efficiency and good grinding quality.

Description

technical field [0001] The invention relates to a grinding center, in particular to a grinding center used for grinding an arcuate cam. Background technique [0002] Globoidal Cam, also known as Roller Gear Cam, Worm Cam, Worm Cam, etc. In 1988, the term "Global Indexing Cam" was officially used in the GB "Terminology of Machine Theory and Mechanism" for approval. [0003] The profile of the arc cam is a non-developable helicoid in space, which is difficult to be expressed by mathematical equations. The most effective processing method is to simulate its working principle with machine tools. That is to say, the machine tool has an arc cam rotary axis (A axis), and the fixture is equivalent to the camshaft and is installed on the A axis. The machine tool also has a rotary axis (B axis), which is equivalent to the driven axis, and the tool is equivalent to the roller. The distance between the A-axis and the B-axis is equal to the distance between the camshaft and the drive...

AI Technical Summary

Problems solved by technology

[0005] However, since the grinding wheel has only one grinding opportunity per revolution, instead of continuous grinding, the grinding efficiency of this grinding method is extremely low. It is mentioned at the end of the above-mentioned document that "the monthly output of this variety is kept above 50 sets", It is conceivable that the efficiency of this processing method is low

At the same time, due to the rotation of the grinding electric spindle, there is a certain amount of eccentricity, and the rotation of the spindle has a certain vibration. In addition, it is not continuous grinding, and the surface quality of the processed surface cannot achieve good results.

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