A tooth root fillet radius detection tool

Abstract

The invention belongs to the detection technical field and provides a root fillet radius detection tool. The root fillet radius detection tool comprises a base installed on a working bench of a contourgraph, and an objective table. An installation reference line of the base is parallel to the axis of a measuring rod of the contourgraph. The objective table is rotationally installed on the base around a rotating shaft perpendicular to the axis of the measuring rod. The rotating axis of the rotating shaft is orthogonal to the installation reference line. A gear is installed on the objective table. According to the invention, the objective table is rotationally installed on the base, the base is installed on the working bench of the contourgraph, the gear is installed on the objective table, so that by rotating the objective table, the tooth direction of the gear is adjusted until the tooth direction is perpendicular to the axis of the measuring rod of the contourgraph, and then each tooth of the gear is detected. By adopting the mode, the perpendicular condition between the tooth direction of the gear and the axis of the measuring rod is ensured, so that the detection precision is improved, and the whole gear is more accurately evaluated.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a tooth root fillet radius detection tool. Background technique [0002] At present, the detection of the tooth root fillet radius is usually evaluated after the profile scanning by the profiler, and the profiler must pass the detection tool to fix the gear before the profile scanning of the tooth root fillet radius. The existing inspection tooling is usually a two-axis translation stage, that is, the stage holding the gear can only move along two horizontal axes perpendicular to each other. The gear is installed on the stage, and the two-axis translation stage is placed on the working surface of the profiler. In order to ensure the detection accuracy, by adjusting the two-axis translation stage, try to ensure that the tooth direction of the gear is perpendicular to the measuring rod of the profiler. Due to the influence of the tooling and assembly space of this ki...

AI Technical Summary

Problems solved by technology

Due to the influence of the tooling and assembly space of this kind of tooling, and the two-axis translation stage lacks the degree of freedom to rotate around the axis perpendicular to the stage, after the gear is installed, the tooth direction of the gear cannot be adjusted. The orientation cannot be perpendicular to the measuring rod, which affects the detection accuracy of the profiler, resulting in inaccurate evaluation; and due to the lack of positioning of the detected teeth, when performing profile scanning for each tooth of the gear, the tooth orientation of each detected tooth is consistent with the lead The angle in the vertical direction is inconsistent, resulting in a decrease in detection accuracy and affecting the evaluation of the entire gear

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