Tooth surface modification method for face gear turning

Abstract

The invention relates to a tooth surface modification method for face gear turning. The tooth surface modification method comprises helical angle modification, tooth width modification or tool inclination modification. According to the helical angle modification, the feeding direction in the machining process is changed, namely, the helical angle of a real tooth surface is changed, so that the tooth surface is modified. According to tooth width modification, tooth surface modification is achieved by changing the depth of the tooth width in the machining process, at the moment, the cutting depth of a tool is changed along with feeding, and the radius of a reference circle of a theoretical tool is changed. According to the tool inclination modification, the geometric shape of the tooth surface is changed by inclining the tool relative to a gear in the machining process, and the radius of the real reference circle and the vertical tool position of the tool are changed along with the inclination of the tool. The machined tooth surface can be correctly meshed with a small gear through tooth surface modification, errors caused by different machining and mounting offset distances are eliminated, and the machined face gear can be correctly meshed with a standard cylindrical gear.

Description

technical field [0001] The invention relates to the field of face gear skiving, and more specifically, relates to a tooth surface modification method for face gear skiving. Background technique [0002] Face gear skiving is a new type of face gear processing technology, which has the characteristics of high efficiency and high precision, but its processing principle is inconsistent with the transmission principle, and the offset distance in the processing The inconsistency between the surface and the theoretical tooth surface leads to problems such as unsatisfactory contact of the processed tooth surface. In order to achieve the allowable cutting speed, the offset between the tool and the work and the workpiece is generally greater than the offset between the large and small wheels during meshing, so the tooth surface obtained by processing is different from the tooth surface of the theoretical surface gear, that is, there is a theoretical Processing errors. Contents of t...

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Problems solved by technology

[0002] Face gear skiving is a new type of face gear processing technology, which has the characteristics of high efficiency and high precision, but its processing principle is inconsistent with the transmission principle, and the offset distance in the processing The inconsistency between the surface and the theoretical tooth surface leads to problems such as unsatisfactory contact of the processed tooth surface

In order to achieve the allowable cutting speed, the offset between the tool and the work and the workpiece is generally greater than the offset between the large and small wheels during meshing, so the tooth surface obtained by processing is different from the tooth surface of the theoretical surface gear, that is, there is a theoretical Processing error

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