CN209961692U - Orthotropic steel box girder welding seam appearance image acquisition device - Google Patents
Orthotropic steel box girder welding seam appearance image acquisition device Download PDFInfo
- Publication number
- CN209961692U CN209961692U CN201920285347.3U CN201920285347U CN209961692U CN 209961692 U CN209961692 U CN 209961692U CN 201920285347 U CN201920285347 U CN 201920285347U CN 209961692 U CN209961692 U CN 209961692U
- Authority
- CN
- China
- Prior art keywords
- screw rod
- stepping motor
- box girder
- steel box
- rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000003466 welding Methods 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 20
- 239000010959 steel Substances 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000008054 signal transmission Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 208000004350 Strabismus Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
Images
Abstract
The utility model relates to an apparent image acquisition device of orthotropic steel box girder welding seam, include: the device comprises a power module, an acquisition module and a signal transmission module. The power module is a screw rod stepping motor, one end of the power module is an output shaft, and the other end of the power module is provided with a rotating base; the acquisition module comprises a main screw rod, an auxiliary limiting rod, a sliding cloud platform and a miniature camera, wherein the sliding cloud platform can move along the main screw rod and the auxiliary limiting rod through the rotation of the main screw rod, and the miniature camera is fixed on the sliding cloud platform; the signal transmission module: the device comprises a USB transmission interface and a stepping motor control interface. Compared with the prior art, the utility model discloses the removal of accessible miniature camera obtains the regional high definition formation of image of welding seam to accurate, steady removal of miniature camera can be realized in the cooperation of accessible lead screw step motor, main lead screw and supplementary gag lever post, has simplified manual operation, has promoted work efficiency.
Description
Technical Field
The utility model relates to an image acquisition device especially relates to an apparent image acquisition device of orthotropic steel box girder welding seam.
Background
The fatigue problem of orthotropic steel box girder steel members is an important problem influencing the mechanical property of the steel box girder and the safety of a bridge, wherein the welding position of a U rib of a top plate of the steel box girder is an area with a lot of fatigue cracks. For the exposed area, the common detection mode adopted in the current engineering is that after a suspected crack is found by manual visual inspection, magnetic powder inspection is carried out on the suspected area, and after the specific position of the fatigue crack is determined, effective information such as a crack picture, crack length, characteristics and the like are recorded by a detector.
However, for long and narrow welding seams at the joint positions of the top plate and the diaphragm plate of the steel box girder, which are wrapped by the over-welding holes, no mature detection technology exists in the engineering, and the existing detection method is that a detector holds lighting equipment and a magnifier to carry out visual observation from two sides of the over-welding holes to opposite sides. For the method, the observation window of the welding seam only has the over-welding holes of the box chambers on the two sides, and the size of the over-welding holes is very small, so that the conventional camera equipment is difficult to enter. The detection of the prior engineering on the internal welding seam of the overwelded hole has the following defects: 1) the detection normative is poor, the visual angle of detection is squint due to the limitation of a detection window, only whether fatigue cracks exist can be detected, and important parameters such as the specific positions and the lengths of the cracks cannot be detected; 2) no detection image: due to the fact that the cross section of the over-welding hole is small in size, the conventional detection means cannot acquire an image of the fatigue crack, and an effective crack image cannot be formed; 3) low detection efficiency and high manpower and material resource consumption.
Disclosure of Invention
The utility model aims at providing an apparent image acquisition device of orthotropic steel box girder welding seam in order to overcome the defects of the prior art.
The purpose of the utility model can be realized through the following technical scheme:
an apparent image acquisition device of orthotropic steel box girder welding seam, includes: the device comprises a power module, an acquisition module and a signal transmission module. The power module is a screw rod stepping motor, one end of the power module is an output shaft, the other end of the power module is provided with a rotating base, and the screw rod stepping motor can be twisted relative to the rotating base; the acquisition module comprises a main screw rod, an auxiliary limiting rod, a sliding cloud platform and a miniature camera, wherein the main screw rod is connected to an output shaft of a screw rod stepping motor, the auxiliary limiting rod is fixed on the screw rod stepping motor and is parallel to the main screw rod, the sliding cloud platform is movably sleeved on the main screw rod and the auxiliary limiting rod in a penetrating way, the sliding cloud platform can move along the main screw rod and the auxiliary limiting rod through the rotation of the main screw rod, and the miniature camera is fixed on the sliding cloud platform; the signal transmission module: the Universal Serial Bus (USB) transmission interface and the stepping motor control interface are arranged on the rotating base, the USB transmission interface is electrically connected with the micro camera, and the stepping motor control interface is electrically connected with the screw rod stepping motor.
Furthermore, fixing threaded holes are formed in two sides of an output shaft of the screw rod stepping motor, and one end of the auxiliary limiting rod is fixed in the fixing threaded holes.
Furthermore, the focal length of the miniature camera is 0.5-5 cm.
Further, the length of the main screw rod is 200-300 mm.
Furthermore, a threaded hole matched with the main threaded rod is formed in the sliding holder, smooth through holes are formed in the two sides of the threaded hole in parallel, and the main threaded rod and the auxiliary limiting rod penetrate through the threaded hole and the smooth through holes respectively.
Furthermore, a hand-held rod is arranged at one end of the rotating base, which is far away from the stepping motor.
Further, the length size range of the over-welding hole applicable to the device is 100-300 mm, the length size range of the aperture radius is 20-50 mm, and the size range of the aperture central angle is 90-120 degrees.
Further, the slip cloud platform be heterotypic nut, the model: t5 threaded hole, 10 × 5 rectangular cross section.
Further, the cross-sectional dimension of the sliding cradle head is smaller than that of the over-welding hole.
Compared with the prior art, the utility model has the advantages of it is following:
1) the high-definition imaging of the welding seam area is obtained through the movement of the miniature camera, the miniature camera can be accurately and stably moved through the cooperation of the screw rod stepping motor, the main screw rod and the auxiliary limiting rod, the crack detection of the precision of 0.01mm is achieved, and the high detection precision is achieved.
2) When the device is used for working, a worker only needs to hold the device by hand and can capture required images by placing the device in the position of the through-welding hole, and the manual workload is simplified through mechanical work, so that the working efficiency is improved.
3) The method can be used for linear scanning imaging of a welding seam area and provides standardized image data for disease analysis such as apparent fatigue cracks.
Drawings
FIG. 1 is a schematic three-dimensional structure diagram of the apparent image acquisition device of the welding seam of the medium-orthotropic steel box girder of the utility model;
fig. 2 is the utility model discloses well orthotropic steel box girder welding seam apparent image acquisition device's planar structure sketch map.
In the figure: 1. screw rod step motor, 2, step motor shell, 3, connecting screw, 4, fixed screw hole, 5, slip cloud platform, 6, miniature camera, 7, main lead screw, 8, supplementary gag lever post, 9, rotating base, 10, USB transmission interface, 11, step motor control interface.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
Examples
Apparent image acquisition device of orthotropic steel box girder welding seam includes: the device comprises a power module, an acquisition module and a signal transmission module. And a handheld rod is arranged at one end of the rotating base 9, which is far away from the stepping motor 1.
A power module: the screw rod stepping motor 1 is provided with an output shaft at one end and a rotating base 9 at the other end, and the screw rod stepping motor 1 can be twisted relative to the rotating base 9. Referring to fig. 1 and 2, fixing threaded holes 4 are formed in two sides of an output shaft of the lead screw stepping motor 1, and one end of the auxiliary limiting rod 8 is fixed in the fixing threaded hole 4. When the screw rod stepping motor is specifically implemented, a stepping motor shell 2 is arranged outside the screw rod stepping motor 1, and the stepping motor shell 2 is fixed outside the screw rod stepping motor 1 through a connecting screw 3.
An acquisition module: referring to fig. 1 and 2, the device comprises a main screw 7, an auxiliary limit rod 8, a sliding cradle head 5 and a micro camera 6, wherein the main screw 7 is connected to an output shaft of the screw stepping motor 1, the auxiliary limit rod 8 is fixed on the screw stepping motor 1, the auxiliary limit rod 8 is parallel to the main screw 7, the sliding cradle head 5 is movably sleeved on the main screw 7 and the auxiliary limit rod 8, the sliding cradle head 5 can move along the main screw 7 and the auxiliary limit rod 8 through the rotation of the main screw 7, and the micro camera 6 is fixed on the sliding cradle head 5. The focal length of the miniature camera 6 is 0.5-5 cm. The length of the main screw rod 7 is 200-300 mm. The sliding cradle head 5 is internally provided with a threaded hole matched with the main threaded rod 7, smooth through holes are formed in the two sides of the threaded hole in parallel, and the main threaded rod 7 and the auxiliary limiting rod 8 penetrate through the threaded hole and the smooth through holes respectively. The sliding cradle head 5 is a special-shaped nut, and the model is as follows: t5 threaded hole, 10 × 5 rectangular cross section. The cross section size of the sliding cradle head 5 is smaller than that of the over-welding hole.
The signal transmission module: the device comprises a USB transmission interface 10 and a stepping motor control interface 11, wherein the USB transmission interface 10 and the stepping motor control interface 11 are both arranged on a rotating base 9, referring to fig. 1 and 2, the USB transmission interface 10 is electrically connected with a micro camera 6, and the stepping motor control interface 11 is electrically connected with a screw rod stepping motor 1.
The length dimension scope of the applicable mistake welding hole of this device is 100 ~ 300mm, and aperture radius length dimension scope is 20mm ~ 50mm, and aperture central angle size scope is 90 ~ 120.
When in specific operation, the method comprises the following steps:
1. a user holds the handheld rod by hand, extends the main screw rod 7 into the through welding hole and turns on an illuminating lamp on the miniature camera;
2. the sliding cradle head 5 is opposite to the position of a weld joint to be collected of a through-welding hole;
3. the screw rod stepping motor 1 works, the main screw rod is driven by the screw rod stepping motor 1 to rotate, so that the total step length of the sliding tripod head 5 is x0Displacement of (2);
4. the photos can be continuously or programmatically collected in the displacement process, the screw rod stepping motor 1 stops displacing during shooting, and collected data are output to an external computer terminal through the USB transmission interface 10 after the pictures are obtained;
5. repeating the processes 3 and 4 to finally finish the displacement of the sliding cloud platform 5 to the coordinate maximum value xmax；
6. The screw rod stepping motor 1 runs reversely, the processes 3 and 4 are repeated until the sliding cradle head 5 finally finishes the displacement to the coordinate minimum value xmin；
7. And (3) turning off an illuminating lamp on the micro camera, and taking out the main screw rod 7 from the inside of the over-welding hole.
The embodiments described above are intended to facilitate the understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention according to the disclosure of the present invention.
Claims (6)
1. The utility model provides an apparent image acquisition device of orthotropic steel box girder welding seam which characterized in that includes:
a power module: the screw rod stepping motor (1) is provided, one end of the screw rod stepping motor is an output shaft, the other end of the screw rod stepping motor is provided with a rotating base (9), and the screw rod stepping motor (1) can be twisted relative to the rotating base (9);
an acquisition module: the device comprises a main screw rod (7), an auxiliary limiting rod (8), a sliding cradle head (5) and a miniature camera (6), wherein the main screw rod (7) is connected to an output shaft of a screw rod stepping motor (1), the auxiliary limiting rod (8) is fixed on the screw rod stepping motor (1), the auxiliary limiting rod (8) is parallel to the main screw rod (7), the sliding cradle head (5) is movably sleeved on the main screw rod (7) and the auxiliary limiting rod (8), the sliding cradle head (5) can move along the main screw rod (7) and the auxiliary limiting rod (8) through the rotation of the main screw rod (7), and the miniature camera (6) is fixed on the sliding cradle head (5);
the signal transmission module: including USB transmission interface (10) and step motor control interface (11), USB transmission interface (10) and step motor control interface (11) all locate rotating base (9) on, USB transmission interface (10) are connected with miniature camera (6) electricity, step motor control interface (11) are connected with lead screw step motor (1) electricity.
2. The orthotropic steel box girder welding line appearance image acquisition device according to claim 1, wherein fixing threaded holes (4) are formed in two sides of an upper output shaft of the lead screw stepping motor (1), and one end of the auxiliary limiting rod (8) is fixed in the fixing threaded holes (4).
3. The device for acquiring the apparent image of the welding line of the orthotropic steel box girder as claimed in claim 1, wherein the focal length of the micro camera (6) is 0.5-5 cm.
4. The orthotropic steel box girder welding line appearance image acquisition device according to claim 1, wherein the length of the main screw rod (7) is 200-300 mm.
5. The device for collecting the weld appearance image of the orthotropic steel box girder according to claim 1, wherein a threaded hole matched with the main screw rod (7) is formed in the sliding cradle head (5), smooth through holes are formed in parallel on two sides of the threaded hole, and the main screw rod (7) and the auxiliary limiting rod (8) penetrate through the threaded hole and the smooth through holes respectively.
6. The orthotropic steel box girder welding line appearance image acquisition device according to claim 1, wherein a handheld rod is arranged at one end of the rotating base (9) far away from the stepping motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285347.3U CN209961692U (en) | 2019-03-07 | 2019-03-07 | Orthotropic steel box girder welding seam appearance image acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920285347.3U CN209961692U (en) | 2019-03-07 | 2019-03-07 | Orthotropic steel box girder welding seam appearance image acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209961692U true CN209961692U (en) | 2020-01-17 |
Family
ID=69238577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920285347.3U Expired - Fee Related CN209961692U (en) | 2019-03-07 | 2019-03-07 | Orthotropic steel box girder welding seam appearance image acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209961692U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044925A (en) * | 2019-05-21 | 2019-07-23 | 上海黑塞智能科技有限公司 | A kind of orthotropic steel box girder crosses welding hole crackle long term monitoring device |
| CN113267503A (en) * | 2021-05-12 | 2021-08-17 | 同济大学 | Adsorption type steel structure linear scanning device |
| CN113406088A (en) * | 2021-05-10 | 2021-09-17 | 同济大学 | Fixed point type steel box girder crack development observation device |
-
2019
- 2019-03-07 CN CN201920285347.3U patent/CN209961692U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110044925A (en) * | 2019-05-21 | 2019-07-23 | 上海黑塞智能科技有限公司 | A kind of orthotropic steel box girder crosses welding hole crackle long term monitoring device |
| CN113406088A (en) * | 2021-05-10 | 2021-09-17 | 同济大学 | Fixed point type steel box girder crack development observation device |
| CN113267503A (en) * | 2021-05-12 | 2021-08-17 | 同济大学 | Adsorption type steel structure linear scanning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209961692U (en) | Orthotropic steel box girder welding seam appearance image acquisition device | |
| CN108180851B (en) | Five-axis image measuring device for measuring shape and position parameters of air film hole | |
| JP4799088B2 (en) | Method and apparatus for measuring work position in remote inspection | |
| CN100342207C (en) | Detector for three-dimensional appearance of micro-member through-hole inner surface and its marking and using method | |
| CN101458072A (en) | Three-dimensional contour outline measuring set based on multi sensors and measuring method thereof | |
| CN109211110A (en) | A kind of flat-type workpiece size detection system and method based on machine vision | |
| CN202255299U (en) | Solder paste thickness testing device | |
| CN207816184U (en) | A kind of external dimensions detection device of part or exemplar | |
| CN110567973B (en) | Piston detection platform and method based on image acquisition | |
| CN112097642B (en) | Three-dimensional cross hole position degree detection instrument and detection method | |
| CN110687130A (en) | Automatic detection method for inner wall defects of micro-holes | |
| CN110230981B (en) | Dimension detection system and dimension detection method for large-size piece | |
| CN108280894A (en) | Not parking method for inspecting for power equipment | |
| CN101839691B (en) | Image-based test sieve automatic calibrator | |
| CN211014059U (en) | Objective table for passivation detection of cutting edge of cutter | |
| CN220040286U (en) | Adjustable climbing mechanism of hydraulic hoist piston rod rust detection device | |
| CN111103125A (en) | Device and method for testing angle of field of endoscope under rectangular field of view | |
| CN116223527A (en) | Corrosion detection device and detection method for hydraulic hoist piston rod | |
| CN111812120B (en) | Turnover type lens defect detection device and method | |
| CN205403709U (en) | Work piece size detection device | |
| CN210803324U (en) | Long-term monitoring device for cracks of cross-welded holes of orthotropic steel box girder | |
| CN108050957B (en) | Device and method for measuring shape error of lip curved surface of wave-shaped lip oil seal | |
| CN112945133A (en) | Three-dimensional size measuring instrument and measuring method thereof | |
| CN113686875A (en) | Equipment and method for detecting defects of inner wall of pier | |
| CN101907449A (en) | Novel automatic measurement method of propeller blade width |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |