A system for visual inspection of turbine blades

A visual inspection and turbine blade technology, applied in the field of visual inspection, can solve the problems of inability to obtain high-precision measurement data, loss of accuracy of blade information collection, complex imaging coupling processing, etc., and achieve easy and fast detection, fast multi-point measurement, measurement high efficiency effect
CN104567679BActive Publication Date: 2017-11-24HUAZHONG UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
HUAZHONG UNIV OF SCI & TECH
Publication Date
2017-11-24

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Abstract

The invention discloses a turbine blade visual inspection system, which comprises: a fuselage with a worktable on the upper part, a top cover arranged above the fuselage and covered on the workbench; an electric rotary table installed on the surface of the workbench, It is used to set the blade to be detected; and the electric translation platform, which is provided with a guide rail in the vertical direction, and the measurement sensor is arranged on the guide rail and can move up and down relative to the worktable; the measurement sensor has a laser that can emit measurement The laser that is incident on the blades and the camera used to capture the reflected light of the blades for imaging can realize the axis of the blades by moving up and down on the worktable and coordinating the rotation of the blades on the oppositely arranged electric rotary table. Multi-point scanning imaging of the upper, lower and both surfaces, thereby realizing accurate and fast scanning measurement of the blade. The invention realizes automatic blade detection, has high working efficiency and high measurement precision, and greatly improves the detection efficiency of blade parts.
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Description

technical field

[0001] The invention belongs to the field of visual detection, and in particular relates to a system and method for visual detection of blades. Background technique

[0002] With the rapid development of the manufacturing industry, the product shape design is becoming increasingly complex, and complex surfaces are widely used in the engineering field. Among them, complex curved surfaces with variable cross-section are widely used in aero-engine blades, steam turbine blades, and marine propeller blades.

[0003] Here, blade parts need to be inspected before processing is completed to ensure the accuracy of processing. For example, the final dimension inspection of aviation casting blades needs to measure the complex curved surface of the blades, compare the characteristic parameters with the product model, and evaluate the casting blades. However, such parts are difficult to process and inspect due to their strong distortion, thin-walled parts, easy deformat...

Claims

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