CN218723949U - Workpiece flatness measuring system based on machine vision - Google Patents
Workpiece flatness measuring system based on machine vision Download PDFInfo
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- CN218723949U CN218723949U CN202222932813.7U CN202222932813U CN218723949U CN 218723949 U CN218723949 U CN 218723949U CN 202222932813 U CN202222932813 U CN 202222932813U CN 218723949 U CN218723949 U CN 218723949U
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Abstract
The utility model belongs to the measuring equipment field discloses a work piece plane degree measurement system based on machine vision, including image acquisition system, industrial computer system and industrial computer, the industrial computer system includes camera control module and a point cloud image processing module, and camera control module passes through internet access with image acquisition system, a point cloud image processing module and industrial computer signal connection, the utility model discloses need not artifical manual collection plane point information, accomplish the plane degree measurement task automatically, use manpower sparingly, material resources and time, greatly reduced the error accumulation, ensured all product quality and detected.
Description
Technical Field
The utility model belongs to the measuring equipment field, concretely relates to work piece plane degree measurement system based on machine vision.
Background
Flatness is an important shape tolerance, and a non-contact flatness online measuring system is provided based on 3D vision aiming at the field of mechanical workpiece manufacturing and processing. In the industrial part detection, the flatness error directly influences the yield of a workpiece, is also a key quality index in the part processing, is researched aiming at the flatness measurement, and plays an important role in improving the processing quality and efficiency of parts. The existing flatness measuring method belongs to a contact type measuring method mostly, taking a three-coordinate measuring instrument to finish flatness measurement as an example, the method needs to place a measured workpiece on a special measuring platform and determine a measuring point distribution scheme by analyzing the shape of a measured object. The contact type measuring method generally has the defects of low measuring efficiency, high requirement on the skill level of operators, incapability of realizing online measurement and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of the prior art, the utility model discloses need not artifical manual collection plane point information, accomplish the flatness measurement task automatically, use manpower sparingly, material resources and time, greatly reduced the error accumulation, ensured the work piece flatness measurement system that whole product quality detected.
Based on above-mentioned purpose, the utility model discloses a following technical scheme a work piece plane degree measurement system based on machine vision, including image acquisition system, industrial computer system and industrial computer, the industrial computer system includes camera control module and a point cloud image processing module, and camera control module passes through internet access with image acquisition system, a point cloud image processing module and industrial computer signal connection.
Preferably, the image acquisition system comprises a plurality of line laser cameras arranged on the production line, and each line laser camera comprises a laser generator and a camera matched with the laser generator; the laser line camera also comprises an optical filter and a lens which are matched with the line laser camera.
Preferably, the industrial personal computer system further comprises a storage module in data connection with the point cloud image processing module.
Preferably, the point cloud image processing module comprises a point cloud image down-sampling, fitting and detecting module which are connected in sequence through signals.
Preferably, the industrial personal computer comprises an upper computer in data connection with the point cloud image processing module.
The utility model discloses to prior art, following beneficial effect has: the utility model discloses need not artifical manual collection plane point information, through the automatic flatness measurement task of accomplishing of image acquisition system and industry control system, obtain the intersection line of different positions glazing plane and measured plane through removing line laser camera, the light plane equation that utilizes every position to correspond obtains the three-dimensional space coordinate of scanning point, non-contact on-line measuring has greatly improved product management and control efficiency, use manpower sparingly, material resources and time, the error accumulation has greatly been reduced, whole product quality detection has been ensured.
Drawings
FIG. 1 is a schematic illustration of the structural principles of a workpiece flatness measurement system;
fig. 2 is a schematic diagram of an image processing module.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.
Example one
The workpiece flatness measuring system based on machine vision as shown in fig. 1-2 comprises an image acquisition system, an industrial personal computer system and an industrial personal computer, wherein the industrial personal computer system comprises a camera control module and a point cloud image processing module, the camera control module is connected with the image acquisition system through a network, and the point cloud image processing module is in signal connection with the industrial personal computer.
The image acquisition system comprises a plurality of line laser cameras arranged on the production line, and each line laser camera comprises a laser generator and a camera matched with the laser generator; the laser line camera also comprises an optical filter and a lens which are matched with the line laser camera.
The industrial personal computer system also comprises a storage module in data connection with the point cloud image processing module.
The point cloud image processing module comprises a point cloud image down-sampling, fitting and detecting module which are connected in sequence through signals.
The industrial personal computer comprises an upper computer which is in data connection with the point cloud image processing module.
In this embodiment, a line laser chassis in an image acquisition system installed at different positions on a production line is controlled by a camera control module of an industrial personal computer system to obtain intersecting lines of an optical plane and a measured plane at different positions, a three-dimensional space coordinate of a scanning point is obtained by using a light plane equation corresponding to each position, the obtained data is sent to a point cloud image processing module in the industrial personal computer system, the data is fitted to a part of point cloud least square planes after being down-sampled by a point cloud image, then the distance between the point cloud and the fitting planes is completed, light plane fitting is completed, data processing is performed on the difference value between the point cloud and the light planes after the light plane fitting is completed, the detection on the surface flatness of a workpiece is completed, and then the processed data is sent to an upper computer of the industrial personal computer or sent to a storage module for storage.
The control program of the present application can be implemented by simple programming by a person skilled in the art, belongs to the common general knowledge in the art, is only used, is not improved, and the present invention is mainly used for protecting a mechanical device, so the present invention does not explain a control mode and a circuit connection in detail.
The above is only a preferred embodiment of the present invention, and only for illustrating the scheme and effect of the present invention, which can not be considered as limiting the scope of the present invention, it should be noted that, for those skilled in the art, without departing from the concept of the present invention, several changes and improvements can be made, all of which should still fall within the scope of the present invention.
Claims (5)
1. A workpiece flatness measuring system based on machine vision is characterized in that: the system comprises an image acquisition system, an industrial personal computer system and an industrial personal computer, wherein the industrial personal computer system comprises a camera control module and a point cloud image processing module, the camera control module is connected with the image acquisition system through a network, and the point cloud image processing module is in signal connection with the industrial personal computer.
2. The machine-vision based workpiece flatness measurement system of claim 1, wherein: the image acquisition system comprises a plurality of line laser cameras arranged on the production line, and each line laser camera comprises a laser generator and a camera matched with the laser generator; the laser line camera also comprises an optical filter and a lens which are matched with the line laser camera.
3. The machine-vision based workpiece flatness measurement system of claim 2, wherein: the industrial personal computer system also comprises a storage module in data connection with the point cloud image processing module.
4. The machine-vision based workpiece flatness measurement system of claim 3, wherein: the point cloud image processing module comprises a point cloud image down-sampling, fitting and detecting module which are connected in sequence through signals.
5. The machine-vision based workpiece flatness measurement system of claim 4, wherein: the industrial personal computer comprises an upper computer in data connection with the point cloud image processing module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222932813.7U CN218723949U (en) | 2022-11-04 | 2022-11-04 | Workpiece flatness measuring system based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222932813.7U CN218723949U (en) | 2022-11-04 | 2022-11-04 | Workpiece flatness measuring system based on machine vision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218723949U true CN218723949U (en) | 2023-03-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222932813.7U Active CN218723949U (en) | 2022-11-04 | 2022-11-04 | Workpiece flatness measuring system based on machine vision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218723949U (en) |
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2022
- 2022-11-04 CN CN202222932813.7U patent/CN218723949U/en active Active
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