Method for repairing damaged machinery component based on three-dimensional digitization

A technology for mechanical parts and repair methods, applied in the field of digital design solutions, can solve problems such as data information being unavailable, and achieve the effects of low measurement cost, strong operability, and easy editing and modification

Inactive Publication Date: 2010-08-18
HOHAI UNIV CHANGZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, what is obtained by this method is only the surface model of the product, and its data information cannot be used in the downstream CAE / CAM, nor can the model be used to obtain a series of two-dimensional engineering drawing information of the product through projection.

Method used

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  • Method for repairing damaged machinery component based on three-dimensional digitization
  • Method for repairing damaged machinery component based on three-dimensional digitization
  • Method for repairing damaged machinery component based on three-dimensional digitization

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Embodiment Construction

[0014] The hardware part of the present invention is composed of a laser measuring system for completing data measurement and a computer system for completing later data processing. like figure 1 , the laser measurement system to complete the data measurement is composed of two cameras 1, 2 and a grating projection device 3, and the two cameras 1, 2 form a certain angle α. The part 4 to be measured is placed on the lower part of the laser measurement system, and the three-dimensional coordinate point data on the surface of the part 4 to be measured is measured.

[0015] like figure 2 As shown, the present invention adopts the method of laser scanning to obtain the three-dimensional data points on the surface of the damaged part. According to the different properties of the part surface, the three-dimensional coordinate points on the surface of the part measured are used as the basis, using the feature recognition and extraction method, and combined with the three-dimensional...

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Abstract

The invention discloses a method for repairing a damaged machinery component based on three-dimensional digitization. The method comprises: firstly, a laser measurement system is adopted to obtain the superficial three-dimensional data points of a component to be measured; all the obtained superficial three-dimensional coordinate data information of the part to the measured are spliced; then the spliced three-dimensional coordinate data information is combined with a three-dimensional digitalized design method by characteristic recognition and extraction methods; the damaged part of the component to be measured is repaired, thus obtaining the three-dimensional physical model, the two-dimensional engineering drawing and the error analysis chart of the component to be measured; and then a technical document is returned to, thus duplicating and manufacturing the damaged part. The method has high repairing accuracy, the digitalized modeling is easy to edit and modify, the measurement cost is lower, the operability is strong, and the method is convenient for popularization and application.

Description

technical field [0001] The invention is a repair method for damaged mechanical parts based on three-dimensional digital technology, which belongs to the field of mechanical design and manufacturing, and aims to solve the problem of three-dimensional digital repair of damaged parts on the surface of complex parts, and provide a feasible method for restoring the original data on the surface of damaged parts. Digital design scheme. Background technique [0002] In the machinery manufacturing industry, parts are often scrapped due to wear, corrosion, or even fracture. It is necessary to remanufacture a new part to replace the scrapped part. If the enterprise has a series of original data information related to the part, it can be remanufactured according to the shape, structure, size and related technical requirements required on the original drawing. the part. However, when the original drawings are lost, or the supplier does not provide the original design drawings of the re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P6/00
Inventor 康兰李小河赵文
Owner HOHAI UNIV CHANGZHOU
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