High-rigidity and high-precision spindle structure of spiral bevel gear grinding machine

Abstract

The invention discloses a high-rigidity and high-precision spindle structure of a spiral bevel gear grinding machine. A spindle flange (3) is in interference fit and location with a grinding wheel spindle (1) by adopting a cylindrical surface and is fastened on the grinding wheel spindle (1) by eight M8 bolts. A grinding wheel transitional plate component (4) is interference fit and location withthe grinding wheel spindle (1) by adopting a cone surface and is fastened on the spindle flange (3). The grinding wheel transitional plate component (4) is mounted on the grinding wheel spindle (1) through a fastening screw (6) and twelve M8 bolts. The invention is the high-rigidity and high-precision spindle structure of a spiral bevel gear grinding machine with enough connection intensity and ahigh-rigidity and high-location precision grinding head when grinding, thus improving the rigidity of the grinding wheel spindle, making the machining accuracy more stable and improving the overall performance of a machine tool.

Description

technical field [0001] The invention relates to a main shaft structure of a gear grinding machine, in particular to a high rigidity and high precision main shaft structure of a spiral bevel gear grinding machine. Background technique [0002] The existing grinding head of the gear grinding machine has the phenomenon of insufficient rigidity and unstable machining accuracy during grinding after long-term use. Its structure is: the main shaft of the grinding wheel is supported by a special bearing for the high-precision main shaft and installed on the eccentric shaft, the flange of the main shaft is positioned and connected through the conical surface and fastened to the main shaft of the grinding wheel by 4 M10 screws, which is used as the front end bearing preload and the grinding wheel. The connection function of the transition plate assembly, the grinding wheel transition plate assembly is positioned through the conical surface and fastened on the spindle flange, the grind...

AI Technical Summary

Problems solved by technology

[0004] 1. The positioning connection of the secondary cone surface at the front end of the grinding head affects the rigidity and positioning accuracy of the grinding head during grinding

[0005] 2. The connection structure of the secondary cone surface of the grinding head is complicated, which leads to the long cantilever of the front spindle and reduces the rigidity of the spindle

[0006] 3. The main shaft flange is fastened on the grinding wheel main shaft by four M10 screws. Through mechanical analysis, it is found that the connection strength is not enough

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