CN101738399B - Tyre laser speckle inspection machine and inspection method thereof - Google Patents
Tyre laser speckle inspection machine and inspection method thereof Download PDFInfo
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- CN101738399B CN101738399B CN200810237713.4A CN200810237713A CN101738399B CN 101738399 B CN101738399 B CN 101738399B CN 200810237713 A CN200810237713 A CN 200810237713A CN 101738399 B CN101738399 B CN 101738399B
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Abstract
The invention relates to a tyre laser speckle inspection machine and an inspection method thereof. A rotating drive part is added in a laser inspection device so as to control laser inspection heads to accurately rotate along the axial directions of locating shafts and to be regulated and located. The omnibearing photo scanning of the tread and the sidewall of a tyre is realized at one station by adopting a laser speckle inspection machine, and equipment has relatively simple overall structure and higher inspection efficiency and can be suitable for inspecting tyres with various types and specifications and sizes. The inspection machine mainly comprises a stand, a support frame, a lifting device, a rotating device, a horizontal reciprocate mobile device and a laser inspection device, wherein the laser inspection device comprises two mounting racks symmetrically connected below the second fixing plates of the horizontal reciprocate mobile device, and the end part of each mounting rack is provided with one laser inspection head. Each laser inspection head rotates within the range smaller than 90 degrees by the rotating drive part connected with the laser inspection head along the locating shafts arranged at the end parts of the mounting racks.
Description
Technical field
The present invention relates to a kind of laser speckle inspection machine and method of inspection thereof that is applied to tire Non-Destructive Testing, control in particular laser detection head and rotate an angle to realize the photographing scanning to tire sidewall, belong to rubber manufacturing machinery field.
Background technology
In the manufacture process of automobile tyre, for improving the quality of production to guarantee the request for utilization of its safe operation, conventionally can carry out a series of online test items.As adopt laser speckle imaging inspection principle, by to surface of tyre Emission Lasers ray so that inner layer of tire is carried out to Non-Destructive Testing, by laser, seeing through strong and weak heterologous signal that tire produces feeds back to CCD camera and carries out imaging, with checking inside tires, whether there is the performance deficiencies such as bubble, and according to assay, tire is identified to classification.
Formerly applying for a patent of following content disclosed, patent No. ZL200720054397, name is called a kind of three-dimensional motion device for tire Non-Destructive Testing, it includes support, hoisting cross beam, jacking gear, whirligig, horizontal reciprocating mobile device and detection head, described jacking gear is arranged on support, described hoisting cross beam is fixedly connected with jacking gear, described whirligig is arranged on hoisting cross beam, described horizontal reciprocating mobile device is arranged under whirligig, and detection head is connected with horizontal reciprocating mobile device.
As such scheme, do not relate to and control detection head rotation or certain angle that tilts, to implement the photographing scanning for tire sidewall position.In fact, existing laser speckle verifying attachment includes 2 covers that arrange respectively at 2 stations scanning imagery equipment independently separately, so the structure of complete machine pick-up unit is comparatively complicated, design and use cost is all larger.
And need to same tire in 2 stations are determined respectively, both extend sense cycle, increased again the complexity of precision during designing tyre is fixed simultaneously.
In above-mentioned formerly patent, the location structure between jacking gear, whirligig and horizontal reciprocating mobile device is comparatively simple in addition, and whirligig is integrally arranged on the bottom of jacking gear.When being rotated, detection head labile factor increases, and is easy to occur swinging and skewness, thereby directly causes scan image partial distortion and have influence on accuracy of detection.
Summary of the invention
Tyre laser speckle inspection machine of the present invention and the method for inspection thereof, be to address the above problem with defect increases by a rotary driving part in laser detector, to control laser detection head, can axially accurately rotate and adjust location around its locating shaft.
The object of the invention is to, adopt a laser speckle inspection machine, on a station, realize the omnibearing photographing scanning of tire tread and sidewall, equipment complete machine structure is relatively simple, checkability is higher, and can be applicable to the tire inspection of various models and specification.
Another goal of the invention is effectively to shorten round of visits, the technology difficulty that reduction causes because of driving repeatedly carry out surely for a tires in.
Goal of the invention is also, improves the structure configuration of existing laser speckle inspection machine, increases the stability of laser detector in rotary course, to improve the precision that scan image is undistorted, guarantee tire inspection.
For achieving the above object, the primary structure of described tyre laser speckle inspection machine is:
There is frame, bracing frame, jacking gear, whirligig, horizontal reciprocating mobile device and laser detector.Wherein, bracing frame is connected in a side of frame, and jacking gear is installed in frame, and whirligig is installed on the hoisting cross beam of jacking gear, and horizontal reciprocating mobile device is installed on the lower end of the pivoted housing of whirligig.
Difference with the prior art part is, described laser detector includes 2 erecting frames that are connected to symmetrically the fixed head below of horizontal reciprocating mobile device, and a laser detection head is set in the end of each erecting frame.
Each laser detection head is by a connected rotary driving part, along the locating shaft that is installed on erecting frame end, at one, is less than in the scope of 90 ° and rotates.
Basic scheme feature as above, when laser detection head does not rotate, drives laser detector to be rotated by whirligig, and laser detection head is that the tyre surface of tire is carried out to photographing scanning; When laser detection head is less than along one of its locating shaft axial-rotation after the angle location of 90 °, by whirligig, drive laser detector to be rotated, laser detection head carries out the sidewall that the position of photographing scanning is tire.
For further realizing rotation angle range and the accurate station-keeping ability of controlling laser detection head, can take following improvement project:
The rotary driving part of described laser detector, include the Driving Stepping Motor being arranged on erecting frame, the sheathed driving gear of output shaft of Driving Stepping Motor, driving gear connects a driven pulley by Timing Belt, expansion tightening wheel successively, and driven pulley is set on locating shaft.
Employing can accurately be controlled the anglec of rotation of laser detection head by the Driving Stepping Motor of PLC driver control, and then regulates it to observe the angular field of view of tire sidewall, realizes comprehensive check.
For improving the stability of laser detector integral body in rotary course, avoid causing rocking of laser detection head, described whirligig includes a pair of fixed head that is fixed on hoisting cross beam upper and lower sides, in fixed head lower end, be fixed with rotating shaft, pivoted housing is socketed in the outside of rotating shaft by internal bearings, in pivoted housing outside, be socketed with the driven belt wheel that turns, the driven belt wheel that turns is connected in to be set in by Timing Belt, expansion tightening wheel successively and initiatively turns belt wheel on Driving Stepping Motor output shaft.
Improvement based on above-mentioned tyre laser speckle inspection machine structure, the present invention has also realized a kind of laser speckle method of inspection, by operation jacking gear and horizontal reciprocating mobile device, drive and control laser detection head and locate, when whirligig drives laser detector rotation, laser detection head along surface of tyre Emission Lasers ray to carry out photographing scanning.
With the most significant difference of the existing method of inspection be, laser detection head is positioned to outside tires top and before Emission Lasers ray, control the rotary driving part of laser detector with the axial direction along its locating shaft by laser detection head, angle location that rotation to one is less than 90 °, to launch laser beam and to be scanned up to the position, sidewall of tire.
For the tire inspection of applicable variety classes, model and physical dimension, the anglec of rotation of laser detection head can be regulated in being less than the scope of 90 °, to adjust laser detection head with respect to the visual angle of tire sidewall.
For further shortening round of visits and improving checkability, described laser detection head is provided with 2, in the process of laser beam photographing scanning, 2 laser detection heads rotate respectively in the scope of 0 to 180 °, with the position, different sidewall for outer surface of tire, carry out respectively photographing scanning.
That is to say, 2 laser detection heads carry out photographing scanning respectively within the scope of half tire tread and sidewall, by feed back to the sweep signal reduction of main frame and mutually splicing can be combined into complete scan image.
In sum, the advantage of tyre laser speckle inspection machine of the present invention and the method for inspection thereof is:
1, can on a checking machine and a station, realize respectively the comprehensive photographing scanning on tyre surface and sidewall, use flexibly, checkability is higher and be applicable to the tire of various models and specification.
2, a laser detection controllability is strong, is conducive to improve its anglec of rotation and the pinpoint ability of regulating.
3, effectively shorten round of visits, reduce the fixed middle complex process degree driving.
4, laser detector good stability in rotary course, scan image is undistorted, testing accuracy is higher.
Accompanying drawing explanation
Now the present invention is described further by reference to the accompanying drawings,
Fig. 1 is the structural representation of described tyre laser speckle inspection machine;
Fig. 2 is that A-A in Fig. 1 is to diagrammatic cross-section;
Fig. 3 is bowing to schematic diagram of Fig. 1;
Fig. 4 is the cross-sectional view of described laser detector;
There is as shown in Figures 1 to 4 frame 1, bracing frame 2;
Hoisting cross beam 30, lifting motor 31, driving pulley 32, lifting shaft 33, lifting Timing Belt 34, driven pulley 35;
Pivoted housing 40, the first fixed heads 41, rotating shaft 42, bearing 43, driven belt wheel 44, the first Timing Belt 45, the first expansion tightening wheel 46, the first Driving Stepping Motors 47 that turn, initiatively turn belt wheel 48;
The second fixed head 50, moves horizontally motor 51, translation belt wheel 52, expansion tightening wheel 53, Timing Belt 54, movable plate 55, slide block 56;
Erecting frame 60, laser detection 61, locating shaft 62, the second Driving Stepping Motors 63, driving gear 64, the second Timing Belt 65, the second expansion tightening wheels 66, driven pulley 67.
Embodiment
Embodiment 1, and as shown in Figures 1 to 4, described tyre laser speckle inspection machine mainly has frame 1, bracing frame 2, jacking gear, whirligig, horizontal reciprocating mobile device and laser detector.Wherein,
Bracing frame 2 is connected in a side of frame 1, and bracing frame 2, from a side supplemental support frame 1, is conducive to improve the reinforcing in rotary course and stable for laser detector, to avoid rocking of laser detection head.
Described jacking gear is set to 2 groups, is arranged on respectively in frame 1, and whirligig is installed on the hoisting cross beam 30 of jacking gear.
Each group jacking gear also includes lifting motor 31, driving pulley 32, lifting shaft 33, lifting Timing Belt 34, driven pulley 35.
Lifting motor 31 is connected with lifting shaft 33, and lifting shaft 33 is connected with driving pulley 32, and driving pulley 32, driven pulley 35 are connected with lifting Timing Belt 34, and 30 of hoisting cross beams are fixedly installed on lifting Timing Belt 34.When lifting motor 31 rotation, by lifting shaft 33, drive driving pulley 32 and Timing Belt 34 to move up and down, thereby drive the hoisting cross beam 30 being fixed on lifting Timing Belt 34 to do to rise or decline to move, thereby reach the object that promotes or reduce whirligig, horizontal reciprocating mobile device and laser detector.
Described whirligig includes, be fixed on a pair of first fixed head 41 of hoisting cross beam 30 upper and lower sides, in the first fixed head 41 lower ends, be fixed with rotating shaft 42, pivoted housing 40 is socketed in the outside of rotating shaft 42 by internal bearings 43, in pivoted housing 40 outsides, be socketed with the driven belt wheel 44 that turns, the driven belt wheel 44 that turns is connected in to be set in by the first Timing Belt 45, the first expansion tightening wheel 46 successively and initiatively turns belt wheel 48 on the first Driving Stepping Motor 47 output shafts.
The first Driving Stepping Motor 47 drives successively and initiatively turns belt wheel 48, the first Timing Belt 45, the first expansion tightening wheel 46 and drivenly turn belt wheel 44 and drive pivoted housing 40 rotations, when pivoted housing 40 rotation, can drive the horizontal reciprocating mobile device of its below to rotate together with laser detector.
Described horizontal reciprocating mobile device, include the fixed head 50 that is arranged on whirligig below, on the second fixed head 50, be provided with and move horizontally motor 51, move horizontally motor 51 and be connected in movable plate 55 by translation belt wheel 52, expansion tightening wheel 53 and Timing Belt 54, movable plate 55 is connected with a joggle in the line slideway of the second fixed head 50 lower ends by slide block 56.
Moving horizontally under the driving of motor 51, horizontal reciprocating mobile device can drive the laser detector along continuous straight runs displacement of its below, thereby control laser detection 61, is positioned to detect station.
Described laser detector, includes 2 erecting frames 60 that are connected to symmetrically fixed head 50 belows, and a laser detection 61 is set in the end of each erecting frame 60.
Each laser detection 61 is by a connected rotary driving part, thereby realize along its locating shaft 62, at one, is less than in the scope of 90 ° and rotates.
The rotary driving part of described laser detector, include the second Driving Stepping Motor 63 being arranged on erecting frame 60, the sheathed driving gear 64 of output shaft of the second Driving Stepping Motor 63, driving gear 64 connects a driven pulley 67 by the second Timing Belt 65, the second expansion tightening wheel 66 successively, and driven pulley 67 is set on locating shaft 62.
The tyre laser speckle method of inspection described in the present embodiment, by operation jacking gear and horizontal reciprocating mobile device, drive and control laser detection 61 location, when whirligig drives laser detector rotation, laser detection 61 along surface of tyre Emission Lasers ray to carry out photographing scanning.
Wherein for the photographing scanning at tire sidewall position, be that laser detection 61 is positioned to outside tires top.
Before Emission Lasers ray, control the rotary driving part of laser detector with by laser detection 61 axial direction along its locating shaft 62, rotate the angle the location that to one, are less than 90 °, laser beam is launched and be scanned up to the position, sidewall of tire.
According to the concrete numerical value of the model of checked tire, specification and physical dimension, the anglec of rotation of laser detection 61 can be regulated in being less than the scope of 90 °, to adjust laser detection 61 angular field of view with respect to sidewall.
Laser detection 61 is provided with 2, and in the process of laser beam photographing scanning, 2 laser detection 61 are rotated respectively in the scope of 0 to 180 °, with the position, different sidewall for outer surface of tire, carry out side by side, respectively photographing scanning.
Use same tyre laser speckle inspection machine, realize successively the photographing scanning for tire tread and sidewall, its operation steps is as follows:
The first step, during detected tire is inner and fixed to airtight, radiation-resistant test cabinet by tape transport;
Second step, by jacking gear, by laser detector perpendicular positioning for the first time, by horizontal reciprocating mobile device, by laser detector horizontal location for the first time, now laser detection 61 is located in outside tires top;
The 3rd step, by controlling the rotary driving part of laser detector, also locates laser detection 61 rotation of the axial direction along its locating shaft 62 a to angle that is less than 90 °;
The 4th step, drives laser detector by a directions Rotate 180 ° by whirligig, and 2 laser detection 61 are carried out photographing scanning along the sidewall of outer surface of tire respectively;
The 5th step, after the been scanned of sidewall, laser detection 61 is reset to original state, and horizontal reciprocating mobile device is controlled laser detector along continuous straight runs and is reset to original state subsequently;
The 6th step, jacking gear is controlled laser detector perpendicular positioning for the second time, and horizontal reciprocating mobile device is controlled laser detector horizontal location for the second time, and now laser detection 61 is located in inside tires center;
The 7th step, drives laser detector by whirligig, and by 180 ° of the direction rotations contrary with the 4th step, 2 laser detection 61 are carried out photographing scanning along the tyre surface of tire inner surface respectively;
The 8th step, after tyre surface been scanned, said apparatus is all reset to original state, and conveying belt transfers out test cabinet by tire.
As mentioned above, the present embodiment is only described with regard to the preferred embodiments of the present invention by reference to the accompanying drawings.For one of ordinary skill in the art, can take a hint accordingly, and direct derivation goes out to meet other alternative structure of design concept of the present invention, other architectural features that obtain thus also should belong to scheme scope of the present invention.
Claims (5)
1. a tyre laser speckle inspection machine, mainly there is frame (1), bracing frame (2), jacking gear, whirligig, horizontal reciprocating mobile device and laser detector, wherein bracing frame (2) is connected in a side of frame (1), jacking gear is installed in frame (1), whirligig is installed on the hoisting cross beam (30) of jacking gear, horizontal reciprocating mobile device is installed on the lower end of the pivoted housing (40) of whirligig, it is characterized in that: described laser detector, include 2 erecting frames (60) that are connected to symmetrically the second fixed head (50) below of horizontal reciprocating mobile device, one laser detection head (61) is set in the end of each erecting frame (60),
Each laser detection head (61) is by a connected rotary driving part, along the locating shaft (62) that is installed on erecting frame (60) end, at one, is less than in the scope of 90 ° and rotates;
Rotary driving part, include the second Driving Stepping Motor (63) being arranged on erecting frame (60), the sheathed driving gear of output shaft (64) of Driving Stepping Motor (63), driving gear (64) connects a driven pulley (67) by the second Timing Belt (65), the second expansion tightening wheel (66) successively, and driven pulley (67) is set on locating shaft (62);
Whirligig, include a pair of the first fixed head (41) that is fixed on hoisting cross beam (30) upper and lower sides, the lower end of first fixed head (41) is fixed with rotating shaft (42) therein, pivoted housing (40) is socketed in the outside of rotating shaft (42) by internal bearings (43), in pivoted housing (40) outside, be socketed with the driven belt wheel (44) that turns, the driven belt wheel (44) that turns is connected in to be set in by the first Timing Belt (45), the first expansion tightening wheel (46) successively and initiatively turns belt wheel (48) on the first Driving Stepping Motor (47) output shaft.
2. the method that the tyre laser speckle inspection machine described in a right to use requirement 1 carries out tyre laser speckle check, by operation jacking gear and horizontal reciprocating mobile device, drive and control laser detection head (61) location, when whirligig drives laser detector rotation, laser detection head (61) along surface of tyre Emission Lasers ray to carry out photographing scanning, it is characterized in that: laser detection head (61) is positioned to outside tires top and before Emission Lasers ray, control the rotary driving part of laser detector with the axial direction along its locating shaft (62) by laser detection head (61), angle location that rotation to one is less than 90 °, laser beam is launched and is scanned up to the position, sidewall of tire.
3. the tyre laser speckle method of inspection according to claim 2, is characterized in that: the anglec of rotation of described laser detection head (61) regulates in being less than the scope of 90 °, to adjust laser detection head (61) with respect to the visual angle of tire sidewall.
4. according to the tyre laser speckle method of inspection described in claim 2 or 3, it is characterized in that: described laser detection head (61) is provided with 2, in the process of laser beam photographing scanning, 2 laser detection heads (61) rotate respectively in the scope of 0 to 180 °, with the position, different sidewall for outer surface of tire, carry out respectively photographing scanning.
5. the tyre laser speckle method of inspection according to claim 4, is characterized in that: use same tyre laser speckle inspection machine, realize successively the photographing scanning for tire tread and sidewall, its operation steps is as follows,
The first step, during detected tire is inner and fixed to airtight, radiation-resistant test cabinet by tape transport;
Second step, by jacking gear, by laser detector perpendicular positioning for the first time, by horizontal reciprocating mobile device, by laser detector horizontal location for the first time, now laser detection head (61) is located in outside tires top;
The 3rd step, by controlling the rotary driving part of laser detector, also locates laser detection head (61) along axial direction rotation a to angle that is less than 90 ° of its locating shaft (62);
The 4th step, drives laser detector by a directions Rotate 180 ° by whirligig, and 2 laser detection heads (61) carry out photographing scanning along the sidewall of outer surface of tire respectively;
The 5th step, after the been scanned of sidewall, laser detection head (61) is reset to original state, and horizontal reciprocating mobile device is controlled laser detector along continuous straight runs and is reset to original state subsequently;
The 6th step, jacking gear is controlled laser detector perpendicular positioning for the second time, and horizontal reciprocating mobile device is controlled laser detector horizontal location for the second time, and now laser detection head (61) is located in inside tires center;
The 7th step, drives laser detector by whirligig, and by 180 ° of the direction rotations contrary with the 4th step, 2 laser detection heads (61) carry out photographing scanning along the tyre surface of tire inner surface respectively;
The 8th step, after tyre surface been scanned, said apparatus is all reset to original state, and conveying belt transfers out test cabinet by tire.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810237713.4A CN101738399B (en) | 2008-11-26 | 2008-11-26 | Tyre laser speckle inspection machine and inspection method thereof |
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| CN200810237713.4A CN101738399B (en) | 2008-11-26 | 2008-11-26 | Tyre laser speckle inspection machine and inspection method thereof |
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| CN101738399A CN101738399A (en) | 2010-06-16 |
| CN101738399B true CN101738399B (en) | 2014-08-27 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313746A (en) * | 2011-09-16 | 2012-01-11 | 中国电子科技集团公司第三十八研究所 | Aerostat airbag detection system based on digital speckle correlation method |
| CN102507589B (en) * | 2011-10-11 | 2013-05-29 | 无锡翼龙航空设备有限公司 | Laser speckle inspection method for aircraft tire |
| CN106124537A (en) * | 2016-08-19 | 2016-11-16 | 青岛科技大学 | A kind of tyre detecting equipment |
| CN107402044B (en) * | 2017-07-28 | 2019-11-22 | 华中科技大学 | A kind of online nondestructive detection system of metal increasing material manufacturing component quality and method |
| CN108445019A (en) * | 2018-04-04 | 2018-08-24 | 苏州优纳科技有限公司 | Wheel hub blank appearance delection device and detection method |
| CN109655468A (en) * | 2019-01-29 | 2019-04-19 | 吉林大学 | A kind of device detecting vehicle tyre inner tread degree of impairment |
| CN112285125A (en) * | 2020-11-11 | 2021-01-29 | 安徽锦希自动化科技有限公司 | Detection device for collecting dust deposition degree on solar panel |
| CN112748122A (en) * | 2020-12-30 | 2021-05-04 | 攀枝花学院 | Electric lifting type tire tread detection device |
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| US5702550A (en) * | 1993-08-13 | 1997-12-30 | Pirelli Coordinamento Pneumatici S.P.A. | Process for tire manufacture with on-line determining of carbon black concentration and distribution in rubber compounds and other carbon black containing materials |
| EP0669203B1 (en) * | 1994-02-24 | 2000-04-12 | PIRELLI PNEUMATICI Società per Azioni | Method and apparatus for plotting a trace pattern on the tread band of a tyre |
| CN1632543A (en) * | 2004-12-22 | 2005-06-29 | 广州华工百川自控科技有限公司 | Laser speckle tire non-destructive detector and non-destructive testing method utilizing the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201314900Y (en) * | 2008-11-26 | 2009-09-23 | 青岛高校软控股份有限公司 | Inspection machine of laser speckle of tire |
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| US5702550A (en) * | 1993-08-13 | 1997-12-30 | Pirelli Coordinamento Pneumatici S.P.A. | Process for tire manufacture with on-line determining of carbon black concentration and distribution in rubber compounds and other carbon black containing materials |
| EP0669203B1 (en) * | 1994-02-24 | 2000-04-12 | PIRELLI PNEUMATICI Società per Azioni | Method and apparatus for plotting a trace pattern on the tread band of a tyre |
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