CN102109321B - Near-infrared vision sensing detection device for large-scale high-temperature forgeable piece - Google Patents
Near-infrared vision sensing detection device for large-scale high-temperature forgeable piece Download PDFInfo
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- CN102109321B CN102109321B CN200910264666.7A CN200910264666A CN102109321B CN 102109321 B CN102109321 B CN 102109321B CN 200910264666 A CN200910264666 A CN 200910264666A CN 102109321 B CN102109321 B CN 102109321B
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Abstract
The invention relates to a near-infrared vision sensing detection device for a large-scale high-temperature forgeable piece. The detection device comprises a million pixel camera (1), a camera stand (8) and a USB (Universal Serial Bus) data line (9) and is characterized in that a near-infrared light filtering system (7) consists of a high-pass light filter (2), an optical glass sheet (3), a fixed barrel (4) and a lens barrel (5) and is coaxially connected with a near-infrared digital CMOS (Complementary Metal-Oxide-Semiconductor Transistor) video camera (6) provided with the million pixel camera (1) and the camera stand (8); both the near-infrared light filtering system (7) and the near-infrared digital CMOS video camera (6) are sealed in a shielding box (11), and a light blocking structure part (13) is arranged outside the shielding box; and the digital CMOS video camera (6) is connected with a visual information processing controller (10) through the USB data line (9). The near-infrared vision sensing detection device has remarkable advantages of obtaining images at a high speed, resisting defocusing and the like compared with a CCD (Charge Coupled Device), has high cost performance and is widely suitable for accurately measuring the intermittent and continuous sensing of the external dimension and the temperature of large-diameter shaft and gear workpieces during the forging and heating process.
Description
Technical field
The present invention relates to a kind of contactless large forgings vision inspection apparatus, particularly a kind of large high-temperature forging near infrared sensing detection device.
Background technology
Existing high-temperature forging is generally adopted the size of visual means estimation workpiece size and deflection, but the False Rate of the method is very large.Adopt infrared thermometer to detect workpiece temperature research application comparatively extensive, but the cost of infrared measurement of temperature instrument is very high, can not measure the heated parts size, makes its popularization limited.Utilizing in recent years cheaply, ccd sensor detects the existing researchs such as forging physical dimension, Zheng Luyao etc. are interim at " China's test " magazine volume the 1st January the 35th in 2009, delivered " based on the large forgings measurement and control integration scheme of non-cpntact measurement " literary composition, this scheme claims to adopt visible light to measure forging physical dimension can obtain preferably effect, but the temperature information that can not reflect large forgings because of visible light, so it can't measure the temperature of high-temperature forging.So far, how to utilize high-temperature forging self heat radiation, sensing detection workpiece physical dimension detects workpiece temperature, and the problems such as flat-die forging process workpiece size and temperature changing process that detect are not resolved; And existing pick-up unit is all can only work independently to forging physical dimension or to the sensing detection of forging temperature, comprises that the control method to the forging total quality all is not resolved.How to overcome the deficiency that prior art exists, become the great difficult problem that needs to be resolved hurrily in the current contactless large forgings vision detection technology field.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists and a kind of large high-temperature forging near infrared sensing detection device is provided, it can be in real time carries out integrated detection to the visual information of physical dimension, change in size, workpiece temperature and the temperature variation of axle class and gear class.
A kind of large high-temperature forging near infrared sensing detection device that proposes according to the present invention, it comprises mega pixel camera, camera mount, usb data line, it is characterized in that forming the near infrared filter system by high-pass filter, optical glass sheet, stationary magazine creel and lens barrel, what high-pass filter and optical glass sheet were stable is fixed in the lens barrel, and stationary magazine creel screws in the lens barrel; The mega pixel camera is arranged on the near infrared digital CMOS video camera, the coaxial front end that is arranged on the mega pixel camera of near infrared filter system, all be closed in the shielding box, near infrared filter system outer setting light-blocking structure spare, the near infrared filter system is connected with digital COMS video camera, camera mount is connected with digital COMS video camera, and digital COMS video camera is connected with the Vision information processing controller by the usb data line.Measuring principle of the present invention is: near infrared digital CMOS video camera is relative fixing with the mutual alignment of measured large high-temperature forging manoeuvring platform, its perform region is by the shading of light-blocking structure spare, reduce external interference light and enter near infrared digital CMOS video camera, the visible light of high-temperature forging emission, the spectrum line of near infrared and the wave band such as infrared, see through optical glass sheet and kept the spectrum line more than 80%, through high-pass filter filtering ultraviolet line, the stray light spectral lines such as visible light, the spectrum line that is retained is passed near infrared digital CMOS video camera through the mega pixel camera, be directly changed into digital signal and pass to the Vision information processing controller by the usb data line, by the Vision information processing controller large forgings view data that collects is processed, at the scene under the hardware environment, the present invention obtains contrasting data table and the boundary profile calibration curve of large forgings visual pattern information gray-scale value and relevant temperature, realizes the synchronous sensing of large forgings temperature and physical dimension.
The present invention compared with prior art, its remarkable advantage is: the first, near infrared digital CMOS video camera for obtain at a high speed image, anti-defocusing all has a clear superiority in than CCD, and equipment is simple, and is cheap; The second, the efficient of the stray light spectral lines such as near infrared filter system filtering ultraviolet line, visible light is very high, is conducive to accurately extract size and the temperature value of large high-temperature forging; The 3rd, optical glass sheet has high thoroughly rate, makes the loss of the spectrum line that is gathered be reduced to minimum degree; The 4th, magnesium shielding box processed and light-blocking structure spare all have the high resistance electro permanent magnetic, make electromagnetic wave be reduced to minimum degree to the interference of spectrum line; The 5th, lens barrel can keep the depth of parallelism of high-pass filter and optical glass sheet, makes the interference of ghost image be reduced to minimum degree.The present invention is widely used in the interrupted and continuous sensing measurement to major diameter axle class, gear class workpiece Forge Heating process physical dimension and temperature, can accurately provide high-temperature forging size and temperature value.
Description of drawings
Fig. 1 is the large high-temperature forging near infrared vision sensing structure of the detecting device schematic diagram that the present invention proposes.
Fig. 2 is that the present invention is the near infrared filter system architecture schematic diagram that proposes.
Fig. 3 is the test system configurations schematic diagram of the large high-temperature forging near infrared vision sensing pick-up unit that proposes of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments.
In conjunction with Fig. 1 and Fig. 2, a kind of large high-temperature forging near infrared sensing detection device that the present invention proposes, it is comprised of mega pixel camera (1), high-pass filter (2), optical glass sheet (3), stationary magazine creel (4), lens barrel (5), near infrared digital CMOS video camera (6), camera mount (8), usb data line (9), Vision information processing controller (10), shielding box (11) and light-blocking structure spare (13).In conjunction with Fig. 3, large high-temperature forging near infrared sensing detection device of the present invention and tested large high-temperature forging (15), forging hammer (14), manoeuvring platform (16) form test macro.The present invention is by high-pass filter (2), optical glass sheet (3), stationary magazine creel (4) and lens barrel (5) have formed near infrared filter system (7), wherein, in lens barrel (5), pack into successively and wipe clean high-pass filter (2) with lens wiping paper, optical glass sheet (3), stationary magazine creel (4) screws in the lens barrel (5), and guarantee that high-pass filter (2) and optical glass sheet (3) can not produce and relatively move, the depth of parallelism between high-pass filter (2) and the optical glass sheet (3) is respectively 0.04-0.08mm; The spectrum line that high-pass filter (2) passes through is that the 980nm near infrared involves the spectrum line greater than its wavelength; Because the permeability of common glass sheet near infrared light only has about 40%, so the present invention has adopted the near infrared light transmitance is reached optical glass sheet (3) more than 80%, with the more information of effective acquisition; Mega pixel camera of the present invention (1) is arranged on the near infrared digital CMOS video camera (6), its focal length is 25-50mm, the coaxial front end that is arranged on mega pixel camera (1) of near infrared filter system (7), all be closed in the shielding box (11), shielding box (11) adopts magnesium alloy, aluminium alloy or the stainless steel material of its inside surface painted black to make, to adopt magnesium alloy materials as best; The outer setting light-blocking structure spare (13) of near infrared filter system (7), light-blocking structure spare (13) adopts the magnesium alloy materials of its inside surface painted black to make; Near infrared digital CMOS video camera (6) is fixed on the camera mount (8), camera mount (8) is fixed on the position corresponding with tested large high-temperature forging (15), and camera mount (8) can be used for adjusting the position of near infrared digital CMOS video camera (6); Near infrared digital CMOS video camera (6) collects signals collecting and is converted to one, be transferred to Vision information processing controller (10) by USB transmission line (9), Vision information processing controller (10) is comprised of image collection processing system, industrial computer and the display (12) that comprise gray scale-temperature card; The transmission antijamming capability of digital signal is better than simulating signal, and high signal to noise ratio (S/N ratio) has reduced the difficulty that successive image is processed.
During the present invention uses, with the image that obtains by lot of experiments in advance near infrared digital CMOS video camera 6 and image capturing system thereof are demarcated, employed formula is:
f(x，y)＝f[(Ax
/+By
/+C)，(Dx
/+Ey
/+F)]，
Wherein (x, y) is the coordinate of scaling board gradation of image, (x
/, y
/) be the gradation of image coordinate after the distortion.Then utilize this system that tested large high-temperature forging 15 is carried out collection and the processing of image: the image that gathers exists in the buffer memory, image is processed special software and take out a width of cloth picture from buffer memory, at first, according to the formula of demarcating gained measurand is carried out geometry correction, then the gradation of image data after proofreading and correct are carried out normalized.For the image after the normalized, two copy is carried out respectively the size extraction with software and temperature value extracts.When carrying out the size extraction, utilize the algorithm of existing maturation to carry out successively pre-service, rim detection, Outside contour extraction and calculate the size value of relevant position; Pass through lot of experiments, made for " gray scale-temperature card " of this system, this card can be determined the corresponding temperature value of gray-scale value that this system acquisition is processed accurately, shows at last size and the temperature of large high-temperature forging (15) by display (12).Said system, the quality of integrated detection large high-temperature forging (15) that can be accurate, real-time.
The present invention can carry out integrated detection to the visual information of axle class, gear class physical dimension, change in size, workpiece temperature and temperature variation in real time, and obtain satisfied effect through validation trial.
Claims (6)
1. large high-temperature forging near infrared sensing detection device, it comprises mega pixel camera (1), camera mount (8), usb data line (9), it is characterized in that forming near infrared filter system (7) by high-pass filter (2), optical glass sheet (3), stationary magazine creel (4) and lens barrel (5), high-pass filter (2) and optical glass sheet (3) are fixed in the lens barrel (5), and stationary magazine creel (4) screws in the lens barrel (5); Mega pixel camera (1) is arranged on the near infrared digital CMOS video camera (6), the coaxial front end that is arranged on mega pixel camera (1) of near infrared filter system (7), all be closed in the shielding box (11), the outer setting light-blocking structure spare (13) of near infrared filter system (7), near infrared filter system (7) is connected with digital COMS video camera (6), camera mount (8) is connected with digital COMS video camera (6), numeral COMS video camera (6) is connected with Vision information processing controller (10) by usb data line (9), Vision information processing controller (10) looks like to process to the large high-temperature forging drawing that collects, obtain large high-temperature forging visual pattern information gray-scale value and corresponding temperature data table and boundary profile calibration curve, realize the synchronous sensing of large high-temperature forging temperature and physical dimension.
2. near infrared sensing detection device according to claim 1 is characterized in that the spectrum line that high-pass filter (2) passes through is that the 980nm near infrared involves the spectrum line greater than its wavelength.
3. near infrared sensing detection device according to claim 1 and 2 is characterized in that the near infrared light transmitance of optical glass sheet (3) reaches more than 80%.
4. near infrared sensing detection device according to claim 1 and 2 is characterized in that shielding box (11) makes for magnesium alloy, aluminium alloy or the stainless steel material of inside surface painted black.
5. near infrared sensing detection device according to claim 1 is characterized in that shielding box (11) makes for the magnesium alloy materials of inside surface painted black.
6. near infrared sensing detection device according to claim 1 is characterized in that Vision information processing controller (10) is comprised of image collection processing system, industrial computer and the display (12) that comprise gray scale-temperature card.
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| CN200910264666.7A CN102109321B (en) | 2009-12-25 | 2009-12-25 | Near-infrared vision sensing detection device for large-scale high-temperature forgeable piece |
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| CN102109321B true CN102109321B (en) | 2013-01-02 |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012217B (en) * | 2010-10-19 | 2012-07-04 | 南京大学 | Method for measuring three-dimensional geometrical outline of large-size appearance object based on binocular vision |
| CN102519622B (en) * | 2011-12-02 | 2015-02-25 | 广东工业大学 | Method for dynamic measuring temperature and shape of valve electric upsetting forming workpiece |
| CN103310584A (en) * | 2013-06-27 | 2013-09-18 | 无锡商业职业技术学院 | Infrared alarm |
| CN103774164A (en) * | 2014-02-20 | 2014-05-07 | 苏州龙腾万里化工科技有限公司 | Water-based metal-degreasing cleaning agent |
| CN105675138B (en) * | 2016-01-15 | 2017-02-01 | 山东大学 | Device and method for visual measurement of infrared transmission optical material mechanical processing temperature field |
| CN109813433A (en) * | 2018-12-01 | 2019-05-28 | 湖北理工学院 | The continuous temperature measurement method of LF refining furnace liquid steel temperature |
| CN112427487A (en) * | 2019-08-26 | 2021-03-02 | 北京机电研究所有限公司 | Device for measuring size of thermal state free forging by utilizing optical image and display grid |
| CN110879080A (en) * | 2019-11-15 | 2020-03-13 | 武汉华中天经通视科技有限公司 | High-precision intelligent measuring instrument and measuring method for high-temperature forge piece |
| WO2021097744A1 (en) * | 2019-11-21 | 2021-05-27 | 北京机电研究所有限公司 | Dynamic measuring apparatus for three-dimensional size and measurement method therefor |
| CN113418615B (en) * | 2021-06-21 | 2022-10-21 | 北京清影机器视觉技术有限公司 | Camera-based automatic temperature measurement method for red hot forging |
| CN113587813A (en) * | 2021-07-30 | 2021-11-02 | 铜陵有色金神耐磨材料有限责任公司 | High temperature forging visual detection device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505387A (en) * | 2002-06-25 | 2004-06-16 | 北京科技大学 | Image processing method for processing image of plug in type stove camera |
| CN101062529A (en) * | 2006-04-25 | 2007-10-31 | 南京理工大学 | Weld seam appearance, fused bath and seam near-infrared vision integral sensing checkout gear |
| CN101214574A (en) * | 2007-12-27 | 2008-07-09 | 天津工业大学 | Arc welding weld crater image self-adaption visual sense sensing system |
-
2009
- 2009-12-25 CN CN200910264666.7A patent/CN102109321B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505387A (en) * | 2002-06-25 | 2004-06-16 | 北京科技大学 | Image processing method for processing image of plug in type stove camera |
| CN101062529A (en) * | 2006-04-25 | 2007-10-31 | 南京理工大学 | Weld seam appearance, fused bath and seam near-infrared vision integral sensing checkout gear |
| CN101214574A (en) * | 2007-12-27 | 2008-07-09 | 天津工业大学 | Arc welding weld crater image self-adaption visual sense sensing system |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-202194A 2002.07.19 |
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Address after: 213300 No. 8, Zhongguancun Avenue, Liyang, Jiangsu Patentee after: Jiangsu Jinyuan High-end Equipment Co., Ltd. Address before: 213376 No. 1008 Ling Ling West Road, Jiangsu, Liyang Patentee before: Jiangsu Jinyuan Forge Co.,Ltd. |