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一、问题提出有一次,在滚铣齿数z为26的直齿圆柱齿轮时,因z39和z65的交换齿轮丢失,只好采用滚铣100齿以上质数圆柱齿轮的方法来加工z26齿轮,首先选微齿数Δz为—1/6,差动挂轮的齿数查挂轮表,但是滚铣后的直齿圆柱齿轮经检查齿向误差超过齿向公差多倍,后又选微齿数Δz为—1/116,再查挂轮表,重选挂轮,滚铣后的直齿圆柱齿轮经检查齿向公差达到5级精度。为什么都是从挂轮表查得的挂轮比,而滚铣的齿轮有的能达到质量要求,有的却达不到质量要求呢?下面就讨论怎样提高滚铣100齿以上质数圆柱齿轮的齿向精度。
First, the problem put forward once, when hobbing the number of teeth z of 26 spur gear, due to loss of exchange gear z39 and z65, had to use hobbing more than 100 teeth above the quality of cylindrical gear processing z26 gear, first select the micro The number of teeth Δz is -1/6, the number of teeth on the differential pendulum wheel check the wheel table, but the hobbing spur gear sprocket tooth error exceeds the allowance multiple times, and then select the number of micro-teeth Δz -1 / 116, and then check the wheel table, re-election reels, hobbing straight spur gear after the inspection tooth tolerance to 5 precision. Why are all linked from the table linked to the pegged wheel, and hobbing some of the gears can meet the quality requirements, but some can not meet the quality requirements? Here to discuss how to improve the hobbing of more than 100 teeth cylindrical gear Tooth accuracy.