CN105403171A - Grating type distortion coefficient measurement device of automobile profile measurement system - Google Patents
Grating type distortion coefficient measurement device of automobile profile measurement system Download PDFInfo
- Publication number
- CN105403171A CN105403171A CN201510987846.3A CN201510987846A CN105403171A CN 105403171 A CN105403171 A CN 105403171A CN 201510987846 A CN201510987846 A CN 201510987846A CN 105403171 A CN105403171 A CN 105403171A
- Authority
- CN
- China
- Prior art keywords
- guide rail
- measurement system
- base plate
- rail base
- measuring instrument
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Abstract
The invention discloses a grating type distortion coefficient measurement device of an automobile profile measurement system. The objective is to solve the problem of camera distortion coefficient measurement of an automobile profile measurement system. The measurement device is mainly formed by a square steel frame (1), a grating ruler (2), a V-type clamp groove (3), a steel filament (4) and a guide rail base plate (6). The V-type clamp groove (3) is adjusted to control stretching of the steel filament (4), the image of the steel filament in a distortion image is changed into the original straight line, and the distortion coefficient can be obtained according to the displacement of the V-type clamp groove (3). The measurement device is simple in structure, high in detection precision, simple to operate, easy to install, quite low in cost and reliable in performance.
Description
Technical field
The present invention relates to a kind of calibration equipment of checkout equipment of auto industry field, in particular, it relates to a kind of automobile shape measurement system raster pattern distortion factor measuring instrument.
Background technology
Because the imaging model that car body Shap feature detection system is desirable is linear, but because camera lens exists nonlinear distortion, pixel in the image of actual acquisition and the pixel of ideal image can not one_to_one corresponding, the profile of object, shape can bend change, this will reduce measuring accuracy, affect the three-dimensional reconstruction of car body.Current employing processes the image generated, and the distortion parameter model calibrating video camera is more complicated, and calculated amount is larger.Therefore, the technical progress of a kind of easy automobile shape measurement system scale-type distortion factor measuring instrument to auto industry detection field is designed significant.
Summary of the invention
The present invention is directed at present cannot the present situation of easy measured automobiles car body Shap feature detection system camera lens model distortion factor, provide that a kind of structure is simple, accuracy of detection is high, cumulative errors is little, function is complete, easy and simple to handle, be easy to installation, highly versatile, cost met automotive check industry that is lower, dependable performance carry out car body Shap feature detection system examining and determine the automobile shape measurement system raster pattern distortion factor measuring instrument required.
Consult Fig. 1 to Fig. 5, for solving the problems of the technologies described above, the present invention adopts following technical scheme to be achieved.Automobile shape measurement system raster pattern distortion factor measuring instrument provided by the present invention includes square steelframe, grating scale, V-type draw-in groove, steel wire and guide rail base plate.
The bottom surface of guide rail base plate and the bottom surface of square steelframe coplanar, the two ends of guide rail base plate are welded on the middle part of square steelframe two opposite flanks respectively, the guide rail of grating scale is placed on the end face of guide rail base plate and arranging threaded hole screw thread and be fixedly connected with of equidistantly processing with the end face of guide rail base plate, two steel wires are each passed through the V-type groove bottom two V-type draw-in grooves, four threaded hole screw threads of four counter sinks and two slide block upper surfaces in grating scale that four sunk screws are each passed through two V-type draw-in grooves are fixedly connected with, two steel wires contact with the V-type groove wringing fit bottom two V-type draw-in grooves, the two ends of two steel wires are welded on the both sides of square steelframe inside surface respectively, two steel wires are parallel to each other.
Square steelframe described in technical scheme is the rectangular frame of four square steel welding.
Guide rail base plate described in technical scheme is processed into by thin rectangular shape steel plate, and the end face of guide rail base plate equidistantly processes row's threaded hole.
Grating scale described in technical scheme is canonical measure grating scale.
V-type draw-in groove described in technical scheme is made up of rectangle bloom, a rectangle bloom lower surface central authorities processing V-type groove, rectangle bloom upper surface two ends symmetrical machining two counter sinks.
The invention has the beneficial effects as follows:
(1) the present invention utilizes grating scale to regulate and record steel wire is become the distance of movement needed for straight line in imaging from curve, thus the distortion factor of acquisition car body Shap feature detection system video camera, reduces cost and method of operating is easy.
(2) critical part of the present invention adopts standard steel section to process, and first, standard steel section output is large, and machining operation is few, and production cost is lower; Secondly, as the important accessory of surveying instrument, adopt standard steel section to have certain intensity, can be indeformable in Long-Time Service, ensure the precision measured, the requirement of national standard to measuring accuracy can be met.
Accompanying drawing explanation
Fig. 1 is the left axonometric drawing of automobile shape measurement system raster pattern distortion factor measuring instrument;
Fig. 2 is the right axonometric drawing of automobile shape measurement system raster pattern distortion factor measuring instrument;
Fig. 3 is the shaft side figure of square steelframe 1, grating scale 2, steel wire 4, guide rail base plate 6 in automobile shape measurement system raster pattern distortion factor measuring instrument;
Fig. 4 is the partial sectional view containing square steelframe 1, grating scale 2, V-type draw-in groove 3, steel wire 4, guide rail base plate 6 in automobile shape measurement system raster pattern distortion factor measuring instrument;
Fig. 5 is the shaft side figure of V-type draw-in groove 3 in automobile shape measurement system raster pattern distortion factor measuring instrument;
In figure: 1. square steelframe, 2. grating scale, 3.V type draw-in groove, 4. steel wire, 6. guide rail base plate.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail:
Consult Fig. 1 to Fig. 5, automobile shape measurement system raster pattern distortion factor measuring instrument includes square steelframe 1, grating scale 2, V-type draw-in groove 3, steel wire 4 and guide rail base plate 6.
Square steelframe 1 is the rectangular frame of four square steel welding, guide rail base plate 6 is processed into by thin rectangular shape steel plate, the bottom surface of guide rail base plate 6 and the bottom surface of square steelframe 1 coplanar, the two ends of guide rail base plate 6 are welded on the middle part of square steelframe 1 two opposite flanks respectively, and the end face of guide rail base plate 6 equidistantly processes row's threaded hole.
Grating scale 2 is canonical measure grating scale, and the guide rail of grating scale 2 is placed on the end face of guide rail base plate 6 and arranging threaded hole screw thread and be fixedly connected with of equidistantly processing with the end face of guide rail base plate 6.
V-type draw-in groove 3 is made up of rectangle bloom, a rectangle bloom lower surface central authorities processing V-type groove, rectangle bloom upper surface two ends symmetrical machining two counter sinks, two steel wires 4 are each passed through the V-type groove bottom two V-type draw-in grooves 3, four threaded hole screw threads of four counter sinks and two slide block upper surfaces in grating scale 2 that four sunk screws are each passed through two V-type draw-in grooves 3 are fixedly connected with, two steel wires 4 contact with the V-type groove wringing fit bottom two V-type draw-in grooves 3, the two ends of two steel wires 4 are welded on the both sides of square steelframe 1 inside surface respectively, and two steel wires 4 are parallel to each other.
The using method of automobile shape measurement system raster pattern distortion factor measuring instrument: by the video camera of square steelframe 1 towards automobile shape measurement system, utilize grating scale 2 that steel wire 4 is stretched, the image of steel wire 4 on the square steelframe 1 of camera acquisition of automobile shape measurement system, when in the image of camera acquisition, steel wire 4 is straight line, stop moving grating chi 2, the displacement of record grating scale 2 now movement, evaluates the distortion factor of automobile shape measurement system video camera according to the size of displacement.
Claims (5)
1. an automobile shape measurement system raster pattern distortion factor measuring instrument, it is characterized in that, described automobile shape measurement system raster pattern distortion factor measuring instrument is made up of with guide rail base plate (6) square steelframe (1), grating scale (2), V-type draw-in groove (3), steel wire (4);
The bottom surface of guide rail base plate (6) and the bottom surface of square steelframe (1) coplanar, the two ends of guide rail base plate (6) are welded on the middle part of square steelframe (1) two opposite flank respectively, the guide rail of grating scale (2) is placed on the end face of guide rail base plate (6) and arranging threaded hole screw thread and be fixedly connected with of equidistantly processing with the end face of guide rail base plate (6), two steel wires (4) are each passed through the V-type groove of two V-type draw-in groove (3) bottoms, four counter sinks that four sunk screws are each passed through two V-type draw-in grooves (3) are fixedly connected with four threaded hole screw threads of two slide block upper surfaces in grating scale (2), two steel wires (4) contact with the V-type groove wringing fit of two V-type draw-in groove (3) bottoms, the two ends of two steel wires (4) are welded on the both sides of square steelframe (1) inside surface respectively, two steel wires (4) are parallel to each other.
2., according to automobile shape measurement system raster pattern distortion factor measuring instrument according to claim 1, it is characterized in that described square steelframe (1) is the rectangular frame of four square steel welding.
3. according to automobile shape measurement system raster pattern distortion factor measuring instrument according to claim 1, it is characterized in that described guide rail base plate (6) is processed into by thin rectangular shape steel plate, the end face of guide rail base plate (6) equidistantly processes row's threaded hole.
4., according to automobile shape measurement system raster pattern distortion factor measuring instrument according to claim 1, it is characterized in that described grating scale (2) is canonical measure grating scale.
5. according to automobile shape measurement system raster pattern distortion factor measuring instrument according to claim 1, it is characterized in that described V-type draw-in groove (3) is made up of rectangle bloom, a rectangle bloom lower surface central authorities processing V-type groove, rectangle bloom upper surface two ends symmetrical machining two counter sinks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987846.3A CN105403171B (en) | 2015-12-24 | 2015-12-24 | Automobile shape measurement system raster pattern distortion factor measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510987846.3A CN105403171B (en) | 2015-12-24 | 2015-12-24 | Automobile shape measurement system raster pattern distortion factor measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105403171A true CN105403171A (en) | 2016-03-16 |
| CN105403171B CN105403171B (en) | 2017-10-03 |
Family
ID=55468810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510987846.3A Expired - Fee Related CN105403171B (en) | 2015-12-24 | 2015-12-24 | Automobile shape measurement system raster pattern distortion factor measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105403171B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654483A (en) * | 2021-08-27 | 2021-11-16 | 吉林大学 | Characteristic synchronous reverse motion automobile morphology detection system distortion coefficient measuring instrument |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0463417A (en) * | 1990-07-03 | 1992-02-28 | Fujitsu Ltd | Manufacture of semiconductor device |
| JP2000046528A (en) * | 1998-07-27 | 2000-02-18 | Fujikura Ltd | Distortion measuring method using optical fiber sensor |
| JP3256678B2 (en) * | 1998-02-19 | 2002-02-12 | 株式会社東芝 | Lens aberration measurement method |
| CN1508527A (en) * | 2002-12-17 | 2004-06-30 | 北京航空航天大学 | Method for calibarting lens anamorphic parameter |
| CN101666625A (en) * | 2009-09-30 | 2010-03-10 | 长春理工大学 | Model-free method for correcting distortion error |
| JP5691185B2 (en) * | 2010-02-10 | 2015-04-01 | 株式会社ニコン | Lens array, wavefront sensor, and wavefront aberration measuring apparatus |
| CN104769935A (en) * | 2013-07-16 | 2015-07-08 | 索尼公司 | Display device |
| CN205228394U (en) * | 2015-12-24 | 2016-05-11 | 吉林大学 | Car appearance measurement system raster pattern distortion coefficient measuring apparatu |
-
2015
- 2015-12-24 CN CN201510987846.3A patent/CN105403171B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0463417A (en) * | 1990-07-03 | 1992-02-28 | Fujitsu Ltd | Manufacture of semiconductor device |
| JP3256678B2 (en) * | 1998-02-19 | 2002-02-12 | 株式会社東芝 | Lens aberration measurement method |
| JP2000046528A (en) * | 1998-07-27 | 2000-02-18 | Fujikura Ltd | Distortion measuring method using optical fiber sensor |
| CN1508527A (en) * | 2002-12-17 | 2004-06-30 | 北京航空航天大学 | Method for calibarting lens anamorphic parameter |
| CN101666625A (en) * | 2009-09-30 | 2010-03-10 | 长春理工大学 | Model-free method for correcting distortion error |
| JP5691185B2 (en) * | 2010-02-10 | 2015-04-01 | 株式会社ニコン | Lens array, wavefront sensor, and wavefront aberration measuring apparatus |
| CN104769935A (en) * | 2013-07-16 | 2015-07-08 | 索尼公司 | Display device |
| CN205228394U (en) * | 2015-12-24 | 2016-05-11 | 吉林大学 | Car appearance measurement system raster pattern distortion coefficient measuring apparatu |
Non-Patent Citations (2)
| Title |
|---|
| 张靖，等: "《摄像头镜头畸变的一种非量测校正方法》", 《光学学报》 * |
| 苏成志，等: "《平面几何测量中的图像畸变校正》", 《光学精密工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113654483A (en) * | 2021-08-27 | 2021-11-16 | 吉林大学 | Characteristic synchronous reverse motion automobile morphology detection system distortion coefficient measuring instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105403171B (en) | 2017-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9945698B2 (en) | Macro-micro composite grating ruler measuring system and measuring method using same comprising a macro-scale reading module, a micro-scale reading module and a measuring reference line | |
| CN102322797A (en) | Three-freedom-degree automobile wheel positioning parameter three-dimensionalal visual flexible detection system | |
| CN202177517U (en) | Automobile wheel position indicator three-freedom-degree calibrating system extending in wide view field space | |
| CN205228394U (en) | Car appearance measurement system raster pattern distortion coefficient measuring apparatu | |
| US10393496B2 (en) | Clamp-type measuring device and measuring method | |
| CN105403171A (en) | Grating type distortion coefficient measurement device of automobile profile measurement system | |
| CN102914238B (en) | Guide rail rolling way measuring device and method of work thereof | |
| CN105371783A (en) | Scale type distortion coefficient measuring instrument for automobile topography measurement system | |
| CN202229727U (en) | Three freedom-degree vehicle wheel alignment parameter stereoscopic vision flexible detection system | |
| CN102419149A (en) | Inner contour measuring meter | |
| CN110631490B (en) | Thread passing and stopping detection device and detection method | |
| CN104677236A (en) | Multifunctional clamp plate | |
| CN211012776U (en) | Intelligent quality monitoring device for bearing ring | |
| CN204085459U (en) | A kind of wire insulation layer thickness measuring instrument | |
| CN208936938U (en) | A kind of handware trench depth measurement measurer | |
| CN103438788A (en) | Pitch-row gauge capable of being read | |
| CN205228393U (en) | Car appearance measurement system scale formula distortion coefficient measuring apparatu | |
| CN203848783U (en) | Apparatus for rapid detection of tooth thickness and tooth depth of driving bevel gear of automobile axle | |
| CN205228395U (en) | Car appearance measurement system electronic type distortion coefficient measuring apparatu | |
| CN105423952B (en) | The mechanical distortion factor measuring instrument of automobile shape measurement system | |
| CN201392182Y (en) | Lead rail linear deflection precision detection device based on optical lever | |
| CN204202884U (en) | The T-shaped displacement overall situation verification system of vehicle wheel alignment parameter vision detection system | |
| CN203785591U (en) | Belt wheel outer ring groove combined gauge | |
| CN105352452B (en) | Automobile shape measurement system electronic type distortion factor measuring instrument | |
| CN201867161U (en) | Wheel outline lateral deviation measurer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171003 Termination date: 20181224 |