High-precision end-tooth automatic dividing device for gear grinding machine

Abstract

The invention discloses a high-precision end-tooth automatic dividing device for a gear grinding machine, belonging to the technical field of gears and gear cutter precision manufacture techniques. The high-precision end-tooth automatic dividing device is characterized in that a pair of end-tooth discs is designed according to the shafting structure of a main processing shaft of the gear grinding machine, a fixed end-tooth disc is fixed on an outer shaft sleeve of the main processing shaft of the gear grinding machine, and a movable end-tooth disc is fixed on a main shaft; a radial cam of an original machine tool dividing system is modified into an end-surface cam to drive the separation and reunion of the end-tooth discs; a geneva mechanism and a dividing change gear of the original machine tool dividing system drive the rough division of the movable end-tooth disc, or a stepping motor respectively drives the separation and reunion and the rough division of the movable end-tooth disc, thus the automation degree is high; the dividing precision of the end-tooth discs achieves + / -0.2 under a free state after the end-tooth discs are arrayed and mutually abraded, the dividing precision of the end-tooth discs achieves + / -1 to + / -3 after the end-tooth discs are combined on a machine tool, and the positioning repeated precision meets + / -0.1 so as to meet the requirements of a gear or a gear cutter which is processed with 1-grade tooth pitch precision.

Description

technical field [0001] The invention belongs to the technical field of precision manufacturing of gears and gear cutters, and relates to the development of a high-precision end gear automatic indexing device based on the characteristics of high combined indexing accuracy of the end tooth disc and the structure of the spindle shaft system processed by the gear grinding machine. A technology to improve the pitch accuracy of the ground gear or gear tool. Background technique [0002] Among the grinding methods of gears, the large-plane grinding wheel grinding method can obtain higher grinding precision, which is a processing method commonly used for standard gears at home and abroad. Most of the indexing systems of large plane grinding wheel gear grinding machines adopt positioning claw-indexing plate indexing system, and the indexing accuracy mainly depends on the machining accuracy of the tooth groove of the indexing plate. The manufacturing accumulative deviation of the too...

AI Technical Summary

Problems solved by technology

Due to the difference in structure and performance, the existing end tooth indexing devices or other high-precision indexing devices are not suitable for assembly and use on gear grinding machines

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