Herringbone gear centering degree on-line measurement and correction method

Abstract

The invention discloses a herringbone gear centering degree on-line measurement and correction method, which comprises the steps of determining a herringbone gear machining tool movement path; determining relevant parameters of a herringbone tooth, including a helical angle and a tooth width; determining a herringbone gear space coordinate system, wherein the lower end face of the herringbone gearserves as a space coordinate system XOZ plane, and the reference axis of a gear shaft coincides with the Y axis; recording coordinates of a tooth profile on the X axis when a cutter moves to the middle position from the lower end face and moves by Y1 distances in the Y-axis direction; when the cutter moves to the middle position from the upper end face, adopting the x-coordinate of the intersection point of the cutter and the tooth profile as X2 when the moving distance of the cutter in the Y direction is Y1, and obtaining a tangential centering degree error; and correcting the herringbone gear through the cutter. According to the herringbone gear centering degree on-line measurement and correction method provided by the invention, the centering error in the tangential direction of the gear is measured according to the change of the motion component of the cutter in the machining process, and the real-time measurement of the centering error is realized; and the end face of an existinggear serves as a benchmark, so that errors generated when a middle plane serves as the benchmark are avoided.

Description

technical field [0001] The invention relates to the technical field of measuring the centering error of a herringbone gear, in particular to a real-time detection method for the centering error of a herringbone gear during the processing of the herringbone gear. Background technique [0002] While the herringbone gear has the characteristics of helical gear transmission, it avoids the disadvantages of the helical gear in the transmission process. The herringbone gear can be regarded as a combination of two helical gears with opposite rotation directions. It is possible to balance the axial force added to a single helical gear. The herringbone gear has the characteristics of strong bearing capacity, small axial load, high transmission efficiency and stable transmission. Therefore, herringbone gear transmission is widely used in heavy machinery transmission systems such as forging equipment, petroleum machinery, and ships. At present, the processing of herringbone gears gene...

AI Technical Summary

Problems solved by technology

When processing with a finger milling cutter (rod cutter), the moderate error is mainly controlled by scribing the knife, due to the error in the scribing, and the superimposition of errors generated during the heat treatment of the tooth surface and the finishing process in the subsequent processing , which makes it difficult to guarantee the moderate error of herringbone gears; when processing helical gears separately, it is necessary to determine the installation angle, workpiece axis and other factors through detection means to meet the requirements of the centering error, and the assembly process is time-consuming, and the assembly accuracy will directly affect Subsequent grinding precision

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