Numerical control shaping gear grinding machine tool

Abstract

The invention discloses a numerical control shaping gear grinding machine tool, which comprises a numerical control system, a machine tool body and an upright column vertical to the machine tool body, wherein a longitudinal workbench and a transverse workbench are arranged on the machine tool body. The machine tool is characterized in that a work piece spindle box is arranged on the longitudinal workbench; the upright column is fixed on the transverse workbench, a vertical workbench is arranged along the upright column, and a grinding wheel spindle box is arranged on the vertical workbench; a circular grating ruler which is in feedback connection with the numerical control system and is used for detecting angular displacement is arranged on a motor shaft in the work piece spindle box; furthermore, the numerical control system is respectively in feedback connection with straight grating rulers arranged in the feeding directions of the longitudinal workbench, the transverse workbench and the vertical workbench. The numerical control shaping gear grinding machine tool can adapt to the machining of gears with different moduli, is simple and convenient to operate, facilitates the improvement on the production efficiency, meanwhile can perform real-time feedback of feeding amount and achieves accurate control so as to improve machining precision.

Description

technical field [0001] The invention relates to a grinding machine for gear tooth surface finish machining, in particular to a numerically controlled forming gear grinding machine. Background technique [0002] At present, the forming gear grinding machine tools used for tooth surface finishing are mostly processed by the generation method, which requires cams, hanging wheels and mechanical transmission devices for gear indexing. For gear indexing of different modules, it is still necessary to replace the hanging wheel, Cam, etc., the operation is very troublesome, and the machining accuracy is also low. Although there are many CNC forming gear grinding machine tools that do not need the steps of replacing the hanging wheel and the cam, generally the axis of the gear to be processed is parallel to the vertical worktable, and the spindle box of the workpiece drives the gear to be processed to perform rotary feed, CNC The dial indexes the workpiece, and the tool rotates and p...

AI Technical Summary

Problems solved by technology

Although there are many CNC forming gear grinding machine tools that do not need the steps of replacing the hanging wheel and the cam, generally the axis of the gear to be processed is parallel to the vertical worktable, and the spindle box of the workpiece drives the gear to be processed to perform rotary feed, CNC The dial indexes the workpiece, and the tool rotates and performs vertical reciprocating motion to process the entire tooth width; it can be learned from this that the existing CNC forming gear grinding machine does not realize the closed-loop precise control of the feed, and the The feed rate is not given real-time feedback, so that the machining accuracy is limited

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