Gear milling machine for forming inner gear ring

Abstract

The invention discloses a gear milling machine for forming an inner gear ring. The gear milling machine comprises a rotary guide rail part, a stand column part, a milling head part, a milling head support, a disc-shaped workpiece platform, platform struts and workpiece bearings, wherein a central hole is formed in the disc-shaped workpiece platform, the milling head part is built in so that a milling head is not overhung, so that the rigidity of the milling head part is strengthened; and the milling head part is built-in so that the expansion of the processing range of a lathe is only decided by the length of a horizontal guide rail on the workbench, and the limit that the processing specification of the traditional lathe is decided by the size of the rotary workbench can be broken. Due to the movement of the milling head part, the difficult problem that large size worm-gears are needed in the large size rotary workbench can be prevented; and furthermore, the difficult problems that the worm-gears in the rotary workbench are large in impact load, liable to be worn, and unlikely to be precisely located in the large gear machining can be prevented by such ways that a workpiece is fixed and the milling head part rotates along with the stand column part.

Description

technical field [0001] The invention relates to a gear processing machine tool, in particular to an inner ring gear forming and milling machine. Background technique [0002] In the traditional CNC internal gear forming and milling machine tool, the workpiece is installed on the rotary table, and the rotary table drives the workpiece to realize the gear separation movement. The milling head part is suspended on the column part outside the workpiece, and the milling head part can move up and down. The column part is installed on the horizontal bed outside the rotary table and moves along the horizontal guide rail. The milling head hangs from the outside of the workpiece and enters the inner ring gear to complete the milling. Such a layout requires very good rigidity of the column and the milling head, otherwise the machining accuracy is difficult to guarantee; due to the limitation of the overhang length of the milling head, the size of the maximum and minimum ring gears tha...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the deficiencies of the above-mentioned technical problems, to provide an internal ring gear forming gear milling machine, which solves the problems of small size variation range of the maximum and minimum ring gears that can be processed by the machine tool, overhang of the milling head, worm gear pairing, etc. Easy to wear and other issues

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