Gear forming grinding machine tool

Abstract

The invention belongs to the technical field of gear machining equipment and provides a gear forming grinding machine tool comprising a machine tool body; a mounting stand of the machine tool body is provided with a numerical control indexing head, a tooth profile centring device, a gear clamping device, a swing device and a grinding and dressing device; the numerical control indexing head is provided with a tooth space conversion mechanism; the tooth profile centring device comprises a base slidably located on the mounting stand, the base is provided with a position correcting mechanism, and a first centre is slidably arranged in the base and is connected with a first regulating mechanism; the swing device comprises a swing arm mounted in a swing groove of the machine tool body in a limited swing way; the grinding and dressing device comprises supporting plates slidably mounted at two sides of the swing arm, and a second regulating mechanism and a locating mechanism are arranged between the supporting plates and the swing arm, and each of the two supporting plates is provided with a shaping grinding wheel and a dressing wheel. The grinding wheel disclosed by the invention can be used while being repaired, so that the machining precision and efficiency of a drum gear are increased; and the gear forming grinding machine tool can be suitable for flexibly-regulated machining of drum gears with different specifications.

Description

technical field [0001] The invention relates to the technical field of gear processing equipment, in particular to a gear forming and grinding machine tool. Background technique [0002] The crown-shaped tooth is modified along the tooth length direction to improve the radial, axial and angular errors caused by shaft installation errors. It has the advantages of strong bearing capacity, large angular displacement compensation and high transmission efficiency. In addition, the crown-shaped tooth The surface improves the contact condition of the inner and outer teeth, avoids the disadvantages of straight tooth edge extrusion and stress concentration under the condition of angular displacement, and at the same time improves the contact condition of the tooth surface, reduces noise, and prolongs the service life of the gear. Long service life maintenance cycle. [0003] In the prior art, milling machines are often used to process drum-shaped teeth, but gears cannot be milled af...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, milling machines are often used to process drum-shaped teeth, but gears cannot be milled after heat treatment, and drum-shaped teeth require higher machining accuracy than ordinary gears, and positioning is difficult, so milling machines and milling cutters cannot meet drum-shaped teeth. The use requirements of high-precision machining quality of teeth, and the flexible adjustment and processing of drum-shaped teeth of different specifications and shapes cannot be realized. In addition, when the modified grinding wheel has been working for a period of time, it needs to be trimmed to restore the grinding performance and correct geometry. The frequent disassembly and assembly of the shaped grinding wheel is not only time-consuming and laborious, but also affects the machining efficiency of the machine tool

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