Active regulation and control method for tooth profile deviation of gear involute template

Abstract

The invention belongs to the technical field of precision machining and testing, and relates to an active regulation and control method for the tooth profile deviation of a gear involute template. For a gear involute template of which the tooth surface to be regulated and controlled is a single tooth surface, the tooth profile convexity deviation C alpha of the gear involute template tends to 0 by regulating and controlling the mounting eccentricity of the gear involute template, and therefore, the tooth profile shape deviation ff alpha is reduced. For a gear involute template of which the tooth surfaces to be regulated and controlled are two different-side tooth surfaces, the tooth profile convexity deviations C alpha 1 and C alpha 2 of the two different-side tooth surfaces tend to 0 by regulating the mounting eccentricity of the gear involute template, so that the tooth profile shape deviations ff alpha 1 and ff alpha 2 are reduced, and the tooth profile inclination deviations fH alpha 1 and fH alpha 2 of the two different-side tooth surfaces tend to be consistent. By means of the method, a gear involute template with the first-level precision meeting the requirement of the gear involute template national standard GB / T 6467-2010 can be obtained, and the precision of an existing commodity gear involute template can be improved without machining. The method has a good market application prospect and popularization value.

Description

technical field [0001] The invention belongs to the field of precision machining and testing, and relates to a method for actively controlling the tooth profile deviation of a gear involute model. Background technique [0002] The gear involute template is a standard measuring instrument for calibrating various involute measuring instruments. It is mainly used to transmit the gear involute parameter value, correct the instrument indication value and determine the instrument indication value error. The national standard GB / T6467-2010 for gear involute templates stipulates that the grades of gear involute templates are divided into grades 1 and 2. Tooth profile shape deviation f of the first-stage gear involute template fα Corresponds to the base circle radius r b ≤100mm, 100mm<r b ≤200mm, 200mm<r b ≤300mm and 300mm<r b ≤400mm are 1.0μm, 1.4μm, 1.7μm and 2.1μm respectively. Corresponding to the radius of the base circle in the above range, the tooth profile shap...

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Problems solved by technology

The above patents invented different structures of gear involute templates, but none of them introduced the precision and processing methods of gear involute templates. At present, none of the gear involute templates of our products meet the national standard GB / T 6467-2010 Requirements for Class 1 Precision Gear Involute Models

[0004] Invention patent [ZL201510091994] introduces a high-precision radially adjustable gear involute template and its adjustment method. By precisely adjusting the radial position of the gear involute template relative to the measuring mandrel, two involute templates can be simultaneously Or the tooth profile inclination deviation f of the 3 tooth surfaces Hα tend to be consistent, so as to ensure the consistency of the base circle radius of each tooth surface of the gear involute model, but this adjustment method relies on the adjustment screw adjustment, it is difficult to accurately control the adjustment amount in the actual use process, and it does not involve the tooth profile shape deviation f fα control method

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