Gear finish machining device and method

Abstract

The invention relates to the field of gear machining, and discloses a gear finish machining device. The gear finish machining device comprises a cutter mounting unit and a gear mounting unit, whereinthe gear mounting unit comprises a mounting table and a fixture; a rotating piece for driving the fixture to rotate is mounted on the mounting table; the fixture comprises a support box, a fixed column, a positioning shaft and a stop cover; the fixed column is positioned at the top end of the support box, and is fixedly connected with the support box; the bottom of the positioning shaft penetratesthrough the top end of the support box; the top end of the positioning shaft penetrates through the top end of the fixed column, and is in vertical sliding fit with the fixed column; a gear is inserted in the outer side of the fixed column; the stop cover can cover the upper part of the fixed column; the stop cover is provided with a first shaft hole for penetrating through the positioning shaft;a limiting block is arranged at the upper part of the positioning shaft; a lifting unit for driving the positioning shaft to vertically move back and forth is mounted in the support box; when the positioning shaft downwards moves, the limiting block can press the stop cover; and the stop cover is provided with a through groove for penetrating through the limiting block. The gear finish machiningdevice can improve the gear grinding efficiency, and is fast and convenient to clamp the gear.

Description

technical field [0001] The invention relates to the field of gear processing, in particular to a gear finishing device and method. Background technique [0002] At present, in the process of processing gears, it is necessary to process the tooth shape of the gear first, and then heat treat the gear. At present, the processing requirements for the gear are getting higher and higher. Therefore, in order to improve the precision of the gear, the gear after heat treatment needs to be ground. Finishing process after heat treatment of gears, honing gears, etc. [0003] At present, in the process of finishing the heat-treated gear, due to the instability of the material used to manufacture the gear or the deformation after heat treatment, in order to ensure the smooth progress of the later finishing, it is necessary to reserve a large grinding allowance , can correct the deformation of the gear after heat treatment and improve the precision of the gear. However, after increasing t...

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Problems solved by technology

[0003] At present, in the process of finishing the heat-treated gear, due to the instability of the material used to manufacture the gear or the deformation after heat treatment, in order to ensure the smooth progress of the later finishing, it is necessary to reserve a large grinding allowance , can correct the deformation of the gear after heat treatment and improve the precision of the gear. However, after increasing the gear grinding allowance, it is easy to cause a large difficulty coefficient of gear grinding, which seriously weakens the life of the gear grinding machine, and it is easy to cause the grinding time of the gear grinding process. Special features, seriously reduce the grinding efficiency and lead to low processing efficiency

[0004] In addition, in the prior art, when finishing a large number of gears, the gears need to be clamped and fixed to avoid the gears from shifting and affecting the machining accuracy of the gears. In the prior art, the centering shaft is used for clamping. During the clamping process, the gear needs to be interspersed on the mandrel, and then it needs to be fixed by a nut. After the gear is processed, the nut needs to be loosened to take out the gear. It is troublesome to use the method in the prior art, and it needs to be tightened when installing the gear. The nut needs to be loosened when taking out the gear, which is very time-consuming and labor-intensive, and the work efficiency is low

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