CN209802322U - Glass flatness detection mechanism - Google Patents
Glass flatness detection mechanism Download PDFInfo
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- CN209802322U CN209802322U CN201920509572.0U CN201920509572U CN209802322U CN 209802322 U CN209802322 U CN 209802322U CN 201920509572 U CN201920509572 U CN 201920509572U CN 209802322 U CN209802322 U CN 209802322U
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Abstract
The utility model discloses a glass plane degree detection mechanism is carried by first conveyer and is awaited measuring glass work piece to benchmark measurement platform on, benchmark measurement platform is as glass work piece's supporting platform, and the measurement support drives camera subassembly and laser emitter and follows benchmark measurement platform's one end moves to the other end, at this in-process, laser emitter transmission laser beam is restrainted to the glass work piece on, the camera subassembly acquires the laser beam image of projection on glass work piece, calculates the height information of the glass work piece that awaits measuring in real time, accomplishes the establishment of three-dimensional imaging model, acquires the plane degree of the glass work piece that awaits measuring, accomplishes the glass work piece that detects and transports to low reaches workshop section through second conveyer. The glass flatness detection mechanism can cover the surface of the whole workpiece without contacting with the workpiece so as to judge the whole flatness of the glass workpiece, is particularly suitable for the flatness online detection of large-area and long glass workpieces, and has high detection efficiency and precision.
Description
Technical Field
The utility model relates to a glass flatness detection mechanism.
Background
Flatness measurement, also known as flatness measurement, currently, in the field of glass manufacturing, there are the following methods for measuring flatness: measuring a feeler gauge, namely filling the whole edge of the workpiece with the feeler gauge to obtain measurement data; measuring by an image measuring instrument, and obtaining a required measuring result through automatic optical focusing scanning measurement; the contact probe is used for measuring, and the probe is directly contacted with a workpiece for measurement; the laser measuring instrument measures by adopting non-contact laser point taking measurement, does not damage workpieces, and has high measuring efficiency.
The existing flatness measurement has the following defects: the feeler gauge has great defects, the feeler gauge cannot be plugged to the middle position of a workpiece, so that the middle position data cannot be measured, and the feeler gauge is easy to scrape and damage the glass workpiece during measurement; although the image measuring instrument can achieve the required measuring result, the efficiency is low, and the detection requirement of the large-scale production of glass products cannot be met; the contact probe has high measurement accuracy but low efficiency and is easy to cause workpiece deformation; the laser measuring instrument adopts a selective measuring mode, does not cover the whole glass surface, and cannot meet the detection requirement of judging the integral flatness of the workpiece.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a glass plane degree detection mechanism is applicable to the on-line measuring of the whole plane degree of glass work piece.
The utility model adopts the technical proposal that: provides a glass flatness detection mechanism, which comprises a first conveying device, a detection device and a second conveying device which are arranged in sequence, wherein,
The detection device comprises a reference measuring platform which can move towards the direction close to and away from the first conveying device or the second conveying device; a measuring bracket is arranged above the reference measuring platform, linear guide rails are arranged on two sides of the reference measuring platform, and the measuring bracket can slide along the linear guide rails; a camera assembly and a laser transmitter are mounted on the measuring bracket;
The first conveying device conveys the glass workpiece to be measured to the reference measuring platform; the measuring support slides from one end of the reference measuring platform to the other end of the reference measuring platform along the linear guide rail, the laser emitter emits a laser beam to the glass workpiece to be measured, the camera assembly acquires a laser beam image projected on the glass workpiece to be measured, height information of the surface of the glass workpiece to be measured is acquired in real time, construction of a three-dimensional imaging model is completed, and the flatness of the glass workpiece to be measured is acquired; and the reference measuring platform conveys the glass workpiece which is detected to the second conveying device.
As an improvement to the above scheme, the first conveying device and the second conveying device are conveying belts or conveying chains.
As an improvement to the above solution, a driving device is disposed at the bottom of the reference measuring platform, and the reference measuring platform is driven by the driving device to move towards and away from the first conveying device or the second conveying device.
As an improvement to the above scheme, the driving device is one of an air cylinder, a hydraulic cylinder, an electric cylinder or a linear motor.
As an improvement to the above scheme, a sliding block is arranged at the bottom of the measuring bracket, and the sliding block can slide along the linear guide rail, so as to drive the measuring bracket to slide between one end and the other end of the reference measuring platform along the linear guide rail.
As an improvement to the above scheme, the slide block is driven by a servo motor and a ball screw mechanism to slide along the linear guide rail.
As an improvement of the above scheme, the camera assembly comprises a linear array camera and an upper computer which are connected by signals, the linear array camera acquires a laser beam image projected on the glass to be measured and transmits the laser beam image to the upper computer, and the upper computer calculates the height information of the surface of the glass workpiece to be measured in real time according to the received laser beam image, completes the construction of a three-dimensional imaging model, and acquires the flatness of the glass workpiece to be measured.
As an improvement to the scheme, the upper computer is connected with the display device through signals and is used for displaying the real-time height information and the flatness of the glass workpiece to be measured.
As an improvement to the above scheme, the line-scan digital camera is horizontally provided with two linear cameras side by side, and the laser transmitters are arranged in the middle of the measuring support.
As an improvement to the above scheme, the measuring support includes a cross beam, two line cameras are mounted on the cross beam, and the laser transmitter is disposed below the line cameras and is inclined toward the line cameras.
The utility model provides a glass flatness detection mechanism, its benchmark measuring platform are as the supporting platform of glass work piece, it drives to measure the support camera subassembly and laser emitter follow benchmark measuring platform's one end moves to the other end, at this in-process, laser emitter transmission laser beam is restrainted to the glass work piece on, the camera subassembly acquires the laser beam image of projection on the glass work piece, and the high information of the glass work piece that awaits measuring of real-time computation accomplishes the structure of three-dimensional imaging model, acquires the plane degree of the glass work piece that awaits measuring, and its high resolution can reach the micron order. The glass flatness detection mechanism can cover the surface of the whole workpiece without contacting with the workpiece so as to judge the whole flatness of the glass workpiece, is particularly suitable for the flatness online measurement of large-area and long glass workpieces, cannot damage the glass workpiece, and has high measurement efficiency and precision and wide application prospect.
Drawings
FIG. 1 is a schematic top view of a glass flatness detecting mechanism according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a detection device in an embodiment of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
In the description of the present invention, it is to be understood that the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The utility model provides a glass plane degree detection mechanism, the detection of this mechanism can cover the surface of whole glass work piece to judge the whole plane degree of glass work piece, be particularly useful for the plane degree on-line measurement of large tracts of land and longer glass work piece, measurement of efficiency and precision are high.
Referring to fig. 1, fig. 1 shows a top view structure of the glass flatness detecting mechanism in the embodiment of the present invention, the glass flatness detecting mechanism includes a first conveying device 10, a detecting device 20 and a second conveying device 30, which are sequentially arranged, the first conveying device 10 can convey a glass workpiece to be detected from an upstream working section to the detecting device 20, and the second conveying device 30 can convey the detected glass workpiece from the detecting device 20 to a downstream working section.
Referring to fig. 2, fig. 2 shows a structure of the inspection apparatus 20, the inspection apparatus 20 includes a reference measuring platform 21, the first conveying device 10 and the second conveying device 30 are respectively located at two ends 211 and 212 of the reference measuring platform 21, and the reference measuring platform 21 can move toward and away from the first conveying device 10 or the second conveying device 30 to receive a glass workpiece to be inspected and transfer the inspected glass workpiece.
Further, the first conveying device 10 and the second conveying device 30 are conveying belts or conveying chains, and preferably, the conveying surfaces of the first conveying device 10 and the second conveying device 30 and the bearing surface of the conveying reference measuring platform 21 are located on the same plane.
A measuring bracket 22 is arranged above the reference measuring platform 21, linear guide rails 23 are arranged on two sides of the reference measuring platform 21, and the measuring bracket 22 can slide along the linear guide rails 23; a camera assembly and a laser transmitter 221 are mounted on the measurement mount 22.
The working principle of the glass flatness detection mechanism is as follows: moving the reference measurement platform 21 in a direction to approach the first conveyor 10 and abutting the first conveyor 10; the first conveying device 10 operates to convey the glass workpiece to be measured from the upstream working section to the reference measuring platform 21; the measuring carriage 22 slides along the linear guide 23 from one end 211 to the other end 212 of the reference measuring platform 21; the laser emitter 221 emits a laser beam to the glass workpiece to be measured, the camera assembly acquires a laser beam image projected on the glass workpiece to be measured, height information of the surface of the glass workpiece to be measured is acquired in real time, a three-dimensional imaging model is built, and the flatness of the glass workpiece to be measured is acquired; the reference measuring platform 21 moves towards the direction close to the second conveying device 30, abuts against the second conveying device 30, conveys the detected glass workpiece to the second conveying device 30, and conveys the detected glass workpiece to a downstream working section by the second conveying device 30; the reference measuring platform 21 is moved away from the second conveying device 30 to be reset, and the measuring bracket 22 is slid from one end 212 to the other end 211 of the reference measuring platform 21 to be reset.
Further, a driving device (not shown) is disposed at the bottom of the reference measuring platform 21, and the reference measuring platform 21 is driven by the driving device to move towards and away from the first conveying device 10 or the second conveying device 30.
further, the driving device may be one of a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, or a linear motor.
In this embodiment, a sliding block is disposed at the bottom of the measuring bracket 22, and the sliding block can slide along the linear guide 23, so as to drive the measuring bracket 22 to slide along the linear guide 23 between one end 211/212 of the reference measuring platform 21 and the other end 212/211.
Furthermore, a guide groove is formed in the sliding block, the guide rail 23 is accommodated in the guide groove, and the sliding block is driven by the servo motor and the ball screw mechanism to slide along the linear guide rail 23.
In this embodiment, the camera assembly includes a linear array camera 220 and an upper computer which are connected by signals, the linear array camera 220 acquires a laser beam image projected on the glass to be measured and transmits the laser beam image to the upper computer, and the upper computer calculates height information of the surface of the glass workpiece to be measured in real time according to the received laser beam image, completes construction of a three-dimensional imaging model, and further acquires the overall flatness of the glass workpiece to be measured.
Further, the upper computer is in signal connection with a display device, the display device is used for displaying real-time height information and flatness of the glass workpiece to be detected, and preferably, the display device is a liquid crystal display screen. The flatness is the variation of the actual surface of the glass workpiece relative to the ideal plane, the actual surface is compared with the ideal plane, the line value distance (height difference) between the actual surface and the ideal plane is the flatness, and the height information of the ideal plane is stored on the upper computer.
In this embodiment, the measuring support includes a cross beam, the line cameras 220 are installed on the cross beam, further, two line cameras 220 are horizontally arranged side by side, and the position of each line camera can be adjusted along the cross beam direction of the measuring support 22, so that the view field of each line camera can cover the surface of the whole glass workpiece to be measured. The laser emitter 221 is disposed in the middle of the measuring support 22, below the line camera 220, and is inclined toward the line camera 220, so as to ensure that the laser emitted therefrom can cover the entire width of the glass workpiece to be measured, and the projection of the laser beam on the glass workpiece can be acquired by the line camera 220.
Preferably, the line camera 220 is a range E stereoscopic imaging camera of SICK, germany, and the Laser transmitter 221 is a Z-Laser line Laser transmitter, germany.
Specifically, the stereo imaging camera 220 obtains a laser beam image projected on the glass to be measured by the laser emitter 221 by using a linear array scanning technology and transmits the laser beam image to the upper computer, the upper computer converts the laser beam image into real-time height information of the glass workpiece to be measured by using a laser triangulation algorithm according to the received laser beam image, and combines a multi-camera vision calibration technology to splice the height information respectively obtained by the two stereo imaging cameras 220 into a whole image by using an image splicing algorithm, so as to complete construction of a stereo imaging model, thereby obtaining the height information of the whole glass workpiece and calculating the whole flatness of the glass workpiece to be measured.
The utility model provides a glass flatness detection mechanism can realize the high measurement scheme of micron level, has both maintained current non-contact measurement system's efficiency, still can extend the extension to camera vision detection system at most on dual camera vision detection system's development basis to the glass work piece that makes to detect does not receive the restriction of area, is particularly useful for the detection of large tracts of land and longer glass work piece plane degree.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A glass flatness detection mechanism is characterized by comprising a first conveying device, a detection device and a second conveying device which are arranged in sequence, wherein,
The detection device comprises a reference measuring platform which can move towards the direction close to and away from the first conveying device or the second conveying device; a measuring bracket is arranged above the reference measuring platform, linear guide rails are arranged on two sides of the reference measuring platform, and the measuring bracket can slide along the linear guide rails; a camera assembly and a laser transmitter are mounted on the measuring bracket;
The first conveying device conveys the glass workpiece to be measured to the reference measuring platform; the measuring support slides from one end of the reference measuring platform to the other end of the reference measuring platform along the linear guide rail, the laser emitter emits a laser beam to the glass workpiece to be measured, the camera assembly acquires a laser beam image projected on the glass workpiece to be measured, height information of the surface of the glass workpiece to be measured is acquired in real time, construction of a three-dimensional imaging model is completed, and the flatness of the glass workpiece to be measured is acquired; and the reference measuring platform conveys the glass workpiece which is detected to the second conveying device.
2. The glass flatness detecting mechanism of claim 1, wherein the first and second conveyors are conveyor belts or conveyor chains.
3. The glass flatness detecting mechanism according to claim 1, wherein a driving device is provided at a bottom of the reference measuring platform, and the reference measuring platform is driven by the driving device to move in a direction approaching and separating from the first conveying device or the second conveying device.
4. The glass flatness detection mechanism of claim 3, where the drive device is one of an air cylinder, a hydraulic cylinder, an electric cylinder, or a linear motor.
5. The glass flatness detecting mechanism according to claim 1, wherein a slider is disposed at a bottom of the measuring bracket, and the slider is slidable along the linear guide to drive the measuring bracket to slide along the linear guide between one end and the other end of the reference measuring platform.
6. The glass flatness detecting mechanism of claim 5, wherein the slider is slid along the linear guide by a servo motor and a ball screw mechanism.
7. The glass flatness detecting mechanism according to claim 1, wherein the camera assembly comprises a linear array camera and an upper computer which are connected through signals, the linear array camera acquires laser beam images projected on the glass to be detected and transmits the laser beam images to the upper computer, and the upper computer calculates height information of the surface of the glass workpiece to be detected in real time according to the received laser beam images, completes construction of a three-dimensional imaging model and obtains flatness of the glass workpiece to be detected.
8. The glass flatness detecting mechanism according to claim 7, wherein the upper computer is connected with a display device through signals and is used for displaying real-time height information and flatness of the glass workpiece to be detected.
9. the glass flatness detecting mechanism according to claim 7, wherein two line cameras are horizontally arranged side by side, and the laser transmitter is arranged in the middle of the measuring support.
10. The glass flatness detection mechanism of claim 9, in which the measurement support includes a cross beam, two line cameras are mounted on the cross beam, and the laser transmitter is disposed below the line cameras and is tilted toward the line cameras.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920509572.0U CN209802322U (en) | 2019-04-16 | 2019-04-16 | Glass flatness detection mechanism |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920509572.0U CN209802322U (en) | 2019-04-16 | 2019-04-16 | Glass flatness detection mechanism |
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| CN209802322U true CN209802322U (en) | 2019-12-17 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397549A (en) * | 2020-04-10 | 2020-07-10 | 秦皇岛弘华特种玻璃有限公司 | Low-expansion all-electric melting borosilicate float glass and preparation method and equipment thereof |
| CN111912360A (en) * | 2020-08-14 | 2020-11-10 | 蚌埠中光电科技有限公司 | Finished product horizontal stand surface flatness detection platform |
| CN114427837A (en) * | 2022-01-13 | 2022-05-03 | 山西光兴光电科技有限公司 | Glass warpage degree detection device |
| CN115046596A (en) * | 2022-08-11 | 2022-09-13 | 江苏诚成节能玻璃有限公司 | Glass performance detection device |
| CN116435213A (en) * | 2023-06-13 | 2023-07-14 | 广东芯乐光光电科技有限公司 | Mini LED laser detection equipment and use method thereof |
| CN117249784A (en) * | 2023-11-17 | 2023-12-19 | 成都万唐科技有限责任公司 | Workpiece surface smoothness and flatness detection device |
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2019
- 2019-04-16 CN CN201920509572.0U patent/CN209802322U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111397549A (en) * | 2020-04-10 | 2020-07-10 | 秦皇岛弘华特种玻璃有限公司 | Low-expansion all-electric melting borosilicate float glass and preparation method and equipment thereof |
| CN111912360A (en) * | 2020-08-14 | 2020-11-10 | 蚌埠中光电科技有限公司 | Finished product horizontal stand surface flatness detection platform |
| CN114427837A (en) * | 2022-01-13 | 2022-05-03 | 山西光兴光电科技有限公司 | Glass warpage degree detection device |
| CN115046596A (en) * | 2022-08-11 | 2022-09-13 | 江苏诚成节能玻璃有限公司 | Glass performance detection device |
| CN115046596B (en) * | 2022-08-11 | 2022-11-01 | 江苏诚成节能玻璃有限公司 | Glass performance detection device |
| CN116435213A (en) * | 2023-06-13 | 2023-07-14 | 广东芯乐光光电科技有限公司 | Mini LED laser detection equipment and use method thereof |
| CN116435213B (en) * | 2023-06-13 | 2024-01-30 | 广东芯乐光光电科技有限公司 | Mini LED laser detection equipment and use method thereof |
| CN117249784A (en) * | 2023-11-17 | 2023-12-19 | 成都万唐科技有限责任公司 | Workpiece surface smoothness and flatness detection device |
| CN117249784B (en) * | 2023-11-17 | 2024-01-26 | 成都万唐科技有限责任公司 | Workpiece surface smoothness and flatness detection device |
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