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Machining method for worm tooth profile of cutter shaft of large gear shaping machine

A processing method and gear shaper technology, applied in the field of mechanical processing, can solve the problems of increased parts size, weight, and inability to meet processing requirements, and achieve the effect of expanding the processing range, shortening the production cycle, and improving the technological level and operation ability.

Active Publication Date: 2012-01-04
通用技术集团天津第一机床有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The enlargement of machine tools has brought about an increase in the size and weight of parts. There are not many enterprises and personnel with such large-scale and precise processing capabilities. The existing thread grinding machine S7332 (L1500, φ320) can no longer meet the processing requirements.

Method used

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  • Machining method for worm tooth profile of cutter shaft of large gear shaping machine
  • Machining method for worm tooth profile of cutter shaft of large gear shaping machine
  • Machining method for worm tooth profile of cutter shaft of large gear shaping machine

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Embodiment Construction

[0024] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0025] See Figure 1 to Figure 5 .

[0026] A processing method for the worm tooth profile of a large gear shaping machine shaft. The size, parameters and technical requirements of the processed large gear shaping machine shaft are: 1) Material: 20Cr; heat treatment: S0.9~C59 (except thread) ;2) Overall length: 1860±0.5; worm length: 572; number of teeth: 22; maximum diameter: 192; Pitch 25.133, pitch circle diameter 176, precision grade 6-D6, number of meshing gear teeth 78; 4) Technical requirements for worm tooth profile: a, radial runout tolerance of worm thread 0.017; b, worm thread axial The cumulative error of tooth pitch is ±0.02. The machining process of the cutter shaft parts is very complicated and there are twenty-six processes...

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Abstract

The invention discloses a machining method for a worm tooth profile of a cutter shaft of a large gear shaping machine, which comprises the following steps of: 1, rough machining before carburizing and quenching; 2, semifinishing after carburizing and quenching; and 3, final finishing. In the semifinishing in the step 2, two side surfaces of the tooth profile are turned by adopting a ceramic bladethrough using a numerically controlled lathe, and the allowance of the single face of the tooth thickness is ensured to be 0.18-0.22mm; and in the finishing in the step 3, cutting speed and feeding quantity are respectively controlled to be below 48.25m / min and 5 threads / turn by adopting a numerically controlled outer diameter slotting tool bar and a numerically controlled outer diameter slottingtool blade thorough using the numerically controlled lathe. According to the invention, the machining range of the numerically controlled lathe is enlarged, the technological level and the operational capacity are improved, the cost is reduced, and the production cycle is shortened.

Description

technical field [0001] The invention belongs to the field of mechanical processing, in particular to a method for processing a worm tooth profile of a cutter shaft of a large gear shaping machine. Background technique [0002] The tool shaft is the tool spindle, which is one of the most important key parts of all machine tools. According to the gear shaping principle of the gear shaping machine, the cutter shaft structure of the gear shaping machine must meet the motion requirements of the machine tool. The cutter shaft of the gear shaping machine not only performs rotary motion, but also reciprocates up and down at the same time, and the up and down reciprocating motion of the cutter shaft is formed by the sector gear driving the cutter shaft and worm. The precision of the tooth shape of the cutter shaft and worm meshed with the sector gear will directly affect the quality of the processed gear. Therefore, the machining accuracy of the worm tooth profile of the cutter sha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/14
Inventor 李秀梅郭洪滨侯振宏靳云海蔡广成孔令涵黄世经樊建军
Owner 通用技术集团天津第一机床有限公司
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