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Large-scale wind power bearing ring machining method adopting composite cutting, and tool

A processing method and technology of bearing rings, which are applied to lathe tools, manufacturing tools, metal processing equipment, etc., can solve the problems of "fish scales, defects, obvious vibration of hand-held tool table, etc.

Pending Publication Date: 2021-06-18
WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] From the perspective of the processing path, the entire processing requires two tool retracts and one dry run for tool setting to complete the process; Among them, the end face process will occur when the blade passes through the hole: 1) There will be obvious vibrations when the hand tool table is held; 2 ) will appear "fish scale pattern" on the processed surface of the through hole; the tip of the knife after the through hole is scratched with fingernails, and there are obvious defects; the processed surface of the through hole has obvious burrs at the hole

Method used

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  • Large-scale wind power bearing ring machining method adopting composite cutting, and tool
  • Large-scale wind power bearing ring machining method adopting composite cutting, and tool
  • Large-scale wind power bearing ring machining method adopting composite cutting, and tool

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Such as Figure 1-3 As shown, the processing method of large-scale wind power bearing rings using compound cutting takes the inner ring as an example; it includes forward cutting and reverse cutting, and the specific processing steps are as follows: The cutting path: end face - chamfering - stop diameter - retraction processing is completed;

[0043] The processing direction of the end face is from the outer diameter of the ferrule to the direction of the inner diameter 6, and the stop diameter 5 refers to the direction where the inner diameter 6 of the ferrule is located;

[0044] The caliber 5 adopts forward cutting, that is, the cutting of the tip of the knife; the end face and chamfering adopt reverse cutting, that is, the auxiliary cutting edge is in contact with the surface of the workpiece to participate in cutting;

[0045] Further, in the end face cutting process in the cutting path from the end face of the ferrule to the inner diameter 6 direction, the starti...

Embodiment 2

[0052] In the implementation of 1, the inner ring is used as an example processing method, including forward cutting and reverse cutting, and the specific processing sequence steps are as follows:

[0053] The cutting path from the end face of the ferrule to the outer diameter direction: end face—chamfer—leading diameter—retraction processing is completed;

[0054] The processing direction of the end face is from the inner diameter of the ferrule to the outer diameter direction, and the guide diameter is the direction where the outer diameter of the ferrule is located;

[0055] Further, the guide diameter 3 adopts forward cutting, that is, part of the cutting edge; the end face and chamfering adopt reverse cutting, that is, the auxiliary cutting edge contacts with the surface of the workpiece to participate in cutting; the internal cutting edge in this embodiment The tool used in the ring machining method is the same as that used in Embodiment 1.

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Abstract

The invention relates to a large-scale wind power bearing ring machining method adopting composite cutting, and a tool. The large-scale wind power bearing ring machining method adopting composite cutting comprises forward cutting and reverse cutting, and comprises the specific machining sequence steps as follows: a cutting path of one same tool tip from the end face of a ring to the inner diameter direction and a cutting path of one same tool tip from the end face of the ring to the outer diameter direction are selected at will according to machining requirements. According to the large-scale wind power bearing ring machining method adopting composite cutting, and the tool provided by the invention, the durability problem of an end face machining blade is solved from the machining mode, the machining and manufacturing requirements are better met, the purposes of prolonging the service life of the blade, improving the end face machining quality and improving the machining efficiency are achieved from the change of the machining path on the premise that the blade in use is not changed, and due to the change of the machining path, the purpose that one tip has two purposes is achieved, and the service life of the blade is doubled; and the method is applied to fine turning and finish turning procedures of a bearing, and the machining efficiency and the form and location tolerance quality of the ring are improved.

Description

technical field [0001] The invention relates to a processing method for a bearing ring of a large-scale wind power turntable, in particular to a processing method and a cutting tool for a large-scale wind power bearing ring using compound cutting, which are applied in the fine and finish turning process of the bearing. Background technique [0002] The bearing structure of the large wind power slewing bearing is a four-point contact type. The ring is composed of: end face, inner diameter, outer diameter, raceway, cage guide diameter, steps, mounting holes and other processed surfaces. The material of the ferrule is 42GrMo, the quenched and tempered hardness of the material is 260-320HRC, and the number of mounting holes is mostly 60-100. Among them, the end face can be divided into mounting surface and non-mounting surface from the purpose; from the processing process, it can be divided into fine turning and fine turning, in which the cutting allowance of fine turning is 0.5...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/00
CPCB23B27/00
Inventor 于永刚张雪松胡栋臧小峰李晶伊兴洋刘学
Owner WAFANGDIAN BEARING GRP STATE BEARING ENG TECH RES CENT CO LTD
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