Additive manufacturing repairing method of rotation bearing hobbing cutter

A technology of slewing bearing and additive manufacturing, which is applied in the field of hob repair, can solve the problems of non-slewing bearing hob repair, general repair effect, cracks and gaps, etc., achieve high pass rate, uniform overall hardness, and reduce production costs Effect

Pending Publication Date: 2020-02-04
XUZHOU WANDA SLEWING BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The slewing ring hob often cracks and has cracks and gaps during long-term use. In the prior art, the methods used for repairing the slewing ring hob are generally through grinding and welding. The repair effect Generally, the slewing bearing hob cannot be repaired to its original state, and with the development of technology, the manufacturing and repair of metal by additive manufacturing is gradually being used, but the repair of the slewing bearing hob still has not touched the additive manufacturing repair aspect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Firstly, according to the overall shape of the slewing bearing hob, the surface structure of the slewing bearing hob to be repaired is designed by computer modeling software, and the slewing bearing hob is designed at the gap of the slewing bearing hob by using the 3D modeling software. The 3D CAD model of the gap, and then transmit the information data of the 3D CAD model to the additive repair equipment, and at the same time convert the 3D CAD model into an STL model. When creating a 3D CAD model, the gap of the slewing bearing must be cut first. Cutting into a regular shape, the regular shape can improve the accuracy of the built model, and at the same time make the planned walking path simpler and more effective, reduce the difficulty of repair and improve the repair effect;

[0025] 2) Before step 1), the non-destructive testing tool head is used to traverse and scan the surface of the slewing bearing hob. During the scanning process, the laser melting head of th...

Embodiment 2

[0032] Embodiment 2: 1) Firstly, according to the overall shape of the slewing bearing hob, the surface structure of the slewing bearing hob to be repaired is designed by computer modeling software, and a 3D CAD is designed for the slewing bearing hob by using the 3D modeling software Model, and then the information data of the 3D CAD model is sent to the additive repair equipment, and the plasticity of the slewing bearing hob is directly performed on the whole, and it is no longer necessary to scan each gap on the hob and then model;

[0033] 2) Use the non-destructive testing tool head to traverse and scan the surface of the slewing bearing hob, quickly find the damaged parts such as cracks, pores and gaps on the surface of the slewing bearing hob, mark the damaged parts through the computer control system, and directly pass The non-destructive testing tool head scans the surface of the slewing bearing hob to get the data and mark it;

[0034] 3) Select the alloy powder of t...

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PUM

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Abstract

The invention discloses the technical field of hobbing cutter repairing, and discloses an additive manufacturing repairing method of a rotation bearing hobbing cutter. The method comprises the following steps that firstly, according to the whole shape of the rotation bearing hobbing cutter, through computer modeling software, the surface structure of the rotation bearing hobbing cutter to be repaired is subjected to three-dimensional solid model design; a nondestructive inspection tool head is adopted, the surface of the rotation bearing hobbing cutter is subjected to traversal scanning, and cracks, pores, gaps and other damage portions on the surface of the rotation bearing hobbing cutter can be rapidly found; alloy powder with the same material for repairing the rotation bearing hobbingcutter is selected, and the rotation bearing hobbing cutter to be repaired is clamped on a machine tool; the surface of the rotation bearing hobbing cutter is subjected to additive repairing; througha position changing machine, the rotation bearing hobbing cutter is turned over, the other face is subjected to additive repairing, and the rotation bearing hobbing cutter free of gap is achieved; andinspecting is rapid, marking is convenient, the surface of the hobbing cutter can be rapidly and effectively repaired, and it is ensured that whole hardness of the repaired rotation bearing hobbing cutter is consistent.

Description

technical field [0001] The invention relates to the technical field of hob repair, in particular to an additive manufacturing repair method for a slewing bearing hob. Background technique [0002] The slewing ring hob often cracks and has cracks and gaps during long-term use. In the prior art, the methods used for repairing the slewing ring hob are generally through grinding and welding. The repair effect Generally, the slewing bearing hob cannot be repaired to its original state, and with the development of technology, the manufacturing and repair of metal by additive manufacturing is gradually being used, but the repair of the slewing bearing hob still has not touched the additive manufacturing repair aspect. To this end, we propose an additive manufacturing repair method for slewing bearing hobs. Contents of the invention [0003] The object of the present invention is to provide a method for repairing a slewing bearing hob by additive manufacturing, so as to solve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F3/105B22F7/06B22F5/00B33Y10/00
CPCB22F7/062B22F5/00B33Y10/00B22F2005/001B22F10/00B22F10/36B22F10/322B22F10/25B22F10/366Y02P10/25
Inventor 尚利罗贤徐正茂金开瑞
Owner XUZHOU WANDA SLEWING BEARING
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