GEAR GRINDING APPARATUS PROVIDING TOOL MODIFICATION FUNCTION

摘要

A gear grinding apparatus comprises a work-piece stand, a tool stand, a grinding wheel assembly and a modification assembly. The work-piece stand has a first shaft to hold and rotate an unmodified gear. The tool stand is movable along a first axial direction against the work-piece stand and includes a slide member. The grinding wheel assembly is located on the slide member to grind the unmodified gear. The modification assembly is located on the slide member above the grinding wheel assembly and includes a rotary member rotatably mounted on the slide member and having a second shaft rotatable about an axis intersecting the second axial direction at an angle smaller than ninety degrees, a trimmer and a movable arm interposed between the rotary member and trimmer. The trimmer has an oblique deviation displacement and a tool modification displacement. The invention formed can reduce production cost and shrink apparatus size.

主权项

1. A gear grinding apparatus providing tool modification function, comprising:
a work-piece stand including a first shaft to hold and rotate an unmodified gear; a tool stand which is located at one side of the work-piece stand and movable against thereof along a first axial direction, and includes a slide member movable along a second axial direction perpendicular to the first axial direction; a grinding wheel assembly located on the slide member to grind the unmodified gear; and a modification assembly which is located on the slide member above the grinding wheel assembly and includes a rotary member rotatably mounted on the slide member and having a second shaft rotatable about an axis intersecting the second axial direction at an angle smaller than ninety degrees, a trimmer and a movable arm interposed between the rotary member and the trimmer; wherein the trimmer includes an oblique deviation displacement in which the grinding wheel assembly is in contact with the unmodified gear to perform machining and the rotary member drives the movable arm to move the trimmer away from the grinding wheel assembly, and a tool modification displacement in which the grinding wheel assembly is moved away from the unmodified gear and the rotary member drives the movable arm to move the trimmer in contact with the grinding wheel assembly to perform modification.