CN209802960U - Surface defect detection system - Google Patents
Surface defect detection system Download PDFInfo
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- CN209802960U CN209802960U CN201920159272.4U CN201920159272U CN209802960U CN 209802960 U CN209802960 U CN 209802960U CN 201920159272 U CN201920159272 U CN 201920159272U CN 209802960 U CN209802960 U CN 209802960U
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- slide rail
- image acquisition
- main control
- control unit
- acquisition unit
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Abstract
The utility model discloses a surface defect detection system, which comprises an image acquisition unit, a limit slide rail, an incremental encoder, a main control unit and a remote data processing unit; the image acquisition unit is provided with a depth camera and is rigidly connected with the limiting slide rail; the incremental encoder is arranged at one end of the limiting slide rail, the main control unit is electrically connected with the image acquisition unit and the incremental encoder respectively, and the main control unit is in communication connection with the remote data processing unit. The method adopts single-frame line scanning data of a depth camera to obtain the three-dimensional tangent plane of the surface of an object, realizes the calculation of three-dimensional point cloud through slide rail positioning data, compares original state data, and realizes quantitative evaluation of the wear state, so that not only is the precision improved, but also the detection efficiency is improved.
Description
Technical Field
The utility model relates to a defect detection technical field, in particular to surface defect detecting system
Background
The surface defect detection is generally to detect defects such as spots, pits, scratches, color differences, defects, and the like on the surface of the workpiece. At present, most defect detection systems are applied to articles which have strict requirements on appearance and have clear indexes, such as metal surfaces, glass surfaces, paper surfaces, electronic component surfaces and the like. Surface defects of industrial products bring different degrees of influence on the attractiveness, comfort, usability and the like of the products, so that it is very important for enterprises to detect and control the surface defects of the products in time.
Surface defects of large structural members such as fan blades, steel beams, steel pipes, wind power towers and the like have adverse effects on the service performance, the attractiveness, the comfort and the like of the large structural members, so that the detection and classification of the surface defects are particularly important. Most of traditional detection is stopped on human eye detection, the precision is low, the efficiency is poor, the subjectivity is realized, the product quality cannot be guaranteed, the defect type and the object abrasion cannot be identified, quantitative evaluation is carried out, and the defective structural part can be repaired in a targeted manner.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a surface defect detecting system for solve the unable discernment defect type of traditional detection means, material wearing and tearing ration aassessment and have the problem of corresponding restoration defect structure.
in order to solve the technical problem, the technical scheme of the utility model is a surface defect detection system, which comprises an image acquisition unit, a limit slide rail, an incremental encoder, a main control unit and a remote data processing unit; the image acquisition unit is provided with a depth camera and is rigidly connected with the limiting slide rail; the incremental encoder is arranged at one end of the limiting slide rail, the main control unit is electrically connected with the image acquisition unit, the limiting slide rail and the incremental encoder respectively, and the main control unit is in communication connection with the remote data processing unit.
Preferably, the depth camera is in communication connection with the main control unit.
preferably, the image acquisition unit is provided with an inclination angle sensor, the inclination angle sensor is arranged in parallel with the depth camera, and the inclination angle sensor is in communication connection with the main control unit.
Preferably, the inner part of the limiting slide rail is connected with a slide block in a sliding and clamping manner, and the lower surface of the image acquisition unit is fixedly connected with the slide block.
the utility model has the advantages that:
1. The surface defect detection system based on the depth camera adopts the depth camera to collect high-precision two-dimensional laser point cloud data, the incremental encoder is arranged at one end of the limiting slide rail and used for measuring the relative displacement of the depth camera, and local three-dimensional point cloud data are formed by combining the data of the depth camera and the data of the incremental encoder, so that the collected data are more accurate, and the quantitative evaluation of abrasion is more accurate through the main control unit and the remote data processing unit;
2. The depth camera collects high-precision two-dimensional laser point cloud data, moves along with the slide rail, obtains relative displacement through the incremental encoder, and combines the two to form local three-dimensional point cloud data;
3. The inclination angle sensor and the depth camera are arranged in parallel, so that the inclination state of the depth camera can be conveniently measured, and the point cloud data acquired by the depth camera can be corrected and compensated;
4. The image acquisition unit is fixed on the sliding block, so that the image acquisition unit can move and be positioned conveniently according to the track of the limiting sliding rail.
Drawings
FIG. 1 is a block diagram of the surface defect inspection system of the present invention;
in the figure, 1-a remote data processing unit, 2-a main control unit, 3-a limiting slide rail, 4-an image acquisition unit, 41-a depth camera and 5-an incremental encoder.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Fig. 1 shows a surface defect detection system of the present invention, which includes an image acquisition unit 4, a limiting slide rail 3, an incremental encoder 5, a main control unit 2 and a remote data processing unit 1; the image acquisition unit 4 is provided with a depth camera 41, and the image acquisition unit 4 is rigidly connected with the limiting slide rail 3; incremental encoder 5 sets up the one end of this spacing slide rail 3, and main control unit 2 is connected with image acquisition unit 4, spacing slide rail 3, incremental encoder 5 electricity respectively, and main control unit 2 and remote data processing unit 1 communication connection.
The inside slip joint of spacing slide rail 3 has the slider, and image acquisition unit 4 lower fixed surface is connected with the slider, is convenient for remove and fix a position according to the orbit of spacing slide rail. On image acquisition unit 4, inclination sensor and depth camera 41 parallel arrangement, depth camera 41 and inclination sensor respectively with main control unit 2 communication connection, the slider removal on the spacing slide rail 3 is followed to the direction of shooing of depth camera 41. The utility model discloses a depth camera gathers high accuracy two-dimensional laser point cloud data, set up incremental encoder 5 and be used for measuring depth camera 41's relative displacement in the one end of spacing slide rail 3, combine depth camera 41 and incremental encoder 5 data formation local three-dimensional point cloud data, utilize inclination sensor and depth camera 41 parallel arrangement simultaneously, be convenient for measure depth camera 41's tilt state, compensate with the point cloud data of gathering depth camera 41 revises, thereby make the data collection more accurate, through main control unit 2 and the more accurate quantitative aassessment of making wearing and tearing of remote data processing unit 1.
preferably, in an embodiment, the image capturing unit 4 is a robot fixed on the sliding block, the depth camera 41 is provided with a head of the robot, and the head of the robot is fixedly connected with the robot, so that the influence on the accurate value of the acquired point cloud data due to the shaking of the head of the robot is avoided.
In another embodiment, the image acquisition unit 4 is a robot fixed on the sliding block, the depth camera 41 is provided with a head of the robot, and the head of the robot is rotatably connected with the robot, so that the surface defects of the detected structural member can be detected in an all-around manner, and the acquired point cloud data is corrected and compensated by combining the rotating angle of the head of the robot and the sliding block moving and positioning, so that the acquired data is more accurate, and the detection efficiency is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.
Claims (4)
1. A surface defect detection system, characterized by: the device comprises an image acquisition unit, a limiting slide rail, an incremental encoder, a main control unit and a remote data processing unit; the image acquisition unit is provided with a depth camera and is rigidly connected with the limiting slide rail; the incremental encoder is arranged at one end of the limiting slide rail, the main control unit is electrically connected with the image acquisition unit, the limiting slide rail and the incremental encoder respectively, and the main control unit is in communication connection with the remote data processing unit.
2. The surface defect detection system of claim 1, wherein: the depth camera is in communication connection with the master control unit.
3. The surface defect detection system of claim 2, wherein: the image acquisition unit is provided with an inclination angle sensor, the inclination angle sensor is arranged in parallel with the depth camera, and the inclination angle sensor is in communication connection with the main control unit.
4. The surface defect detection system of claim 1, wherein: the inside slip joint of spacing slide rail has the slider, image acquisition unit lower surface fixedly connected with slider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159272.4U CN209802960U (en) | 2019-01-25 | 2019-01-25 | Surface defect detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920159272.4U CN209802960U (en) | 2019-01-25 | 2019-01-25 | Surface defect detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209802960U true CN209802960U (en) | 2019-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920159272.4U Expired - Fee Related CN209802960U (en) | 2019-01-25 | 2019-01-25 | Surface defect detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420753A (en) * | 2022-08-25 | 2022-12-02 | 哈尔滨工业大学 | Pollutant distribution state measuring method based on pavement texture measurement |
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2019
- 2019-01-25 CN CN201920159272.4U patent/CN209802960U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115420753A (en) * | 2022-08-25 | 2022-12-02 | 哈尔滨工业大学 | Pollutant distribution state measuring method based on pavement texture measurement |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191217 Termination date: 20220125 |