CN205246012U - Car appearance measurement system mechanical type distortion coefficient measuring apparatu - Google Patents
Car appearance measurement system mechanical type distortion coefficient measuring apparatu Download PDFInfo
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- CN205246012U CN205246012U CN201521095343.7U CN201521095343U CN205246012U CN 205246012 U CN205246012 U CN 205246012U CN 201521095343 U CN201521095343 U CN 201521095343U CN 205246012 U CN205246012 U CN 205246012U
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Abstract
The utility model discloses a car appearance measurement system mechanical type distortion coefficient measuring apparatu aims at solving the unable simple and convenient measuring problem of car appearance vision detection system camera camera lens distortion coefficient. Car appearance measurement system mechanical type distortion coefficient measuring apparatu is mainly by square frame (1), steel wire (2), sleeve (3) are constituteed with adjusting screw (4), drawing through adjusting screw (4) control steel wire, make the steel wire image in the distortion image become straight line originally, number of rotations according to adjusting screw (4) obtains distortion coefficient, which has the advantages of simple structure, and high detection precision, simple operation, easy installation, and lower cost, the car appearance measurement system mechanical type distortion coefficient measuring apparatu of dependable performance.
Description
Technical field
The utility model relates to a kind of calibration equipment of checkout equipment of auto industry field, in particular,It relates to a kind of automobile pattern measuring system mechanical type distortion factor measuring instrument.
Background technology
In the time carrying out the camera calibration of automobile pattern measuring system, because the existence of distortion can cause largerMeasure error. In the ideal case, in space, arbitrary straight line is still a straight line in the projection as plane, byIn there is distortion, actual straight line is imaged as a curve. By adjusting the distortion of automobile pattern measuring system mechanical typeCoefficient measuring instrument makes the steel wire in image become straight line from curve, calculates and takes the photograph thereby record distance that steel wire movesThe distortion coefficients of camera lens of camera has the technological progress of automobile pattern measuring system and auto industry detection fieldSignificance.
Summary of the invention
There is showing of larger distortion error for the camera lens of automobile pattern measuring system in the utility modelShape, provide a kind of simple in structure, accuracy of detection is high, accumulated error is little, telotism, easy and simple to handle,Be easy to that installation, highly versatile, cost are lower, the met automobile of dependable performance detects industry to car bodyShap feature detection system is examined and determine the automobile pattern measuring system mechanical type distortion factor measuring instrument requiring.
Consult Fig. 1 to Fig. 4, for solving the problems of the technologies described above, the utility model adopts following technical scheme to giveRealize. The automobile pattern measuring system mechanical type distortion factor measuring instrument provided by the utility model side of includingFrame, steel wire, sleeve and adjustment screw.
Four standard hex bolts of adjusting screw are fixed through four screwed holes and the square frame screw thread of square frame respectivelyConnect, four trapezoidal round platforms of adjusting screw end are wedged the ladder circular hole that sleeve is processed vertically, two steelSilk is respectively through two diametric circular-shaped through-hole of two sleeves, and the two ends of two steel wires are the side's of being welded on frame water respectivelySquare both sides to inner surface, two steel wires are parallel to each other, and two steel wires are respectively through two of two sleevesDiametric circular-shaped through-hole, the two ends of two steel wires are the both sides of the side's of being welded on frame vertical direction inner surface respectively, twoSteel wire is parallel to each other.
The rectangular frame that square frame described in technical scheme is welded by square steel, the interior table on rectangular frame four limitsA screwed hole of the each processing in face middle part.
Sleeve described in technical scheme is cylinder steel part, and sleeve is processed a ladder circular hole vertically, coverCylinder bottom radially processes a manhole.
Adjustment screw described in technical scheme is that standard hex bolts and the welding of trapezoidal round platform are made, trapezoidal circleThe bottom surface diameter of the minor diameter of platform is identical with the diameter of bolt, and the bond length of trapezoidal round platform is less than sleeve top0.5 millimeter of Circularhole diameter, the long edge lengths of trapezoidal round platform is greater than 1 millimeter of trapezoidal round platform bond length.
The beneficial effects of the utility model are:
(1) conventional method, by the actual drop shadow curve of analysis space cathetus, is set up the picture point of drop shadow curveEquation, consideration picpointed coordinate relation is set up radial distortion model, finally solves the distortion factor of video camera. ShouldMethod need to be set up more complicated Mathematical Modeling, and solves a series of system of linear equations. The utility model profitUse simple mechanical material, adjust the measurement of automobile pattern measuring system mechanical type distortion factor by adjusting screwThe camber of steel wire in instrument, makes to become straight line from curve in image, and screw rotating cycle is scaled to steel wireMobile distance, thus draw quickly and easily the distortion coefficients of camera lens of video camera.
(2) major part of the present utility model adopts standard steel section to process, first, and standard steel section outputGreatly, machining operation is few, and production cost is lower; Secondly,, as the important accessory of measuring instrument, adoptStandard steel section has certain intensity, can be indeformable in long-term use, ensure the precision of measurement, and canMeet the requirement of national standard to certainty of measurement.
Brief description of the drawings
Fig. 1 is the axonometric drawing of automobile pattern measuring system mechanical type distortion factor measuring instrument;
Fig. 2 is cuing open of automobile pattern measuring system mechanical type distortion factor measuring instrument middle sleeve 3, adjustment screw 4View;
Fig. 3 is the shaft side figure of automobile pattern measuring system mechanical type distortion factor measuring instrument middle sleeve 3;
Fig. 4 is the shaft side figure of adjusting screw 4 in automobile pattern measuring system mechanical type distortion factor measuring instrument;
In figure: 1. side's frame, 2. steel wire, 3. sleeve, 4. adjusts screw.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Consult Fig. 1 to Fig. 4, the automobile pattern measuring system mechanical type distortion factor measuring instrument side of including frame 1,Steel wire 2, sleeve 3 and adjustment screw 4.
The rectangular frame that side's frame 1 is welded by square steel, the each processing one in inner surface middle part on rectangular frame four limitsIndividual screwed hole, sleeve 3 is cylinder steel part, sleeve 3 is processed a ladder circular hole vertically, sleeve 3 bottomsRadially process a manhole.
Adjusting screw 4 is that standard hex bolts and the welding of trapezoidal round platform are made, the end of the minor diameter of trapezoidal round platformFace diameter is identical with the diameter of bolt, and the bond length of trapezoidal round platform is less than the Circularhole diameter 0.5 on sleeve 3 topsMillimeter, the long edge lengths of trapezoidal round platform is greater than 1 millimeter of trapezoidal round platform bond length, adjusts the mark of screw 4 for fourAccurate hex bolts is fixedly connected with square frame 1 screw thread through four screwed holes of square frame 1 respectively, adjusts spiral shell for fourThe end of standard hex bolts and the large diameter bottom surface of four trapezoidal round platforms of nail 4 are welded to connect, four tuneThe ladder circular hole that the trapezoidal round platform wedging sleeve 3 of whole screw 4 ends is processed vertically.
Two steel wires 2 pass respectively two diametric circular-shaped through-hole of two sleeves 3, the two ends of two steel wires 2The both sides of the side's of being welded on frame 1 horizontal direction inner surface respectively, two steel wires 2 are parallel to each other, two steel wires 2Through two diametric circular-shaped through-hole of two sleeves 3, the two ends of two steel wires 2 are the side's of being welded on frame 1 respectively respectivelyThe both sides of vertical direction inner surface, two steel wires 2 are parallel to each other.
The using method of automobile pattern measuring system mechanical type distortion factor measuring instrument: by automobile pattern Department of SurveySystem mechanical type distortion factor measuring instrument is placed on the front of automobile pattern measuring system video camera, adjusts by adjustingIt is straight line that whole screw 4 makes the image of the steel wire 2 on the side's of being welded on frame 1 of camera acquisition, and record is adjusted simultaneouslyThe rotating cycle of whole screw 4 is also scaled the axial displacement of adjusting screw 4, draws automobile according to axial displacementThe distortion factor of topography measurement system video camera.
Claims (4)
1. an automobile pattern measuring system mechanical type distortion factor measuring instrument, is characterized in that described vapourCar topography measurement system mechanics formula distortion factor measuring instrument is by square frame (1), steel wire (2), sleeve (3) and tuneWhole screw (4) composition;
Four standard hex bolts of adjusting screws (4) are respectively through four screwed holes and the side of square frame (1)Frame (1) screw thread is fixedly connected with, and four trapezoidal round platform wedging sleeves (3) of adjusting screw (4) end are along axleTo the ladder circular hole of processing, two steel wires (2) are radially circular logical through two of two sleeves (3) respectivelyHole, the two ends of two steel wires (2) are the both sides of the side's of being welded on frame (1) horizontal direction inner surface respectively, twoSteel wire (2) is parallel to each other, and two steel wires (2) are radially circular logical through two of two sleeves (3) respectivelyHole, the two ends of two steel wires (2) are the both sides of the side's of being welded on frame (1) vertical direction inner surface respectively, twoSteel wire (2) is parallel to each other.
2. according to automobile pattern measuring system mechanical type distortion factor measuring instrument claimed in claim 1, its spyLevy the rectangular frame that is that described square frame (1) is welded by square steel, in the inner surface on rectangular frame four limitsA screwed hole of the each processing of portion.
3. according to automobile pattern measuring system mechanical type distortion factor measuring instrument claimed in claim 1, its spyLevy and be that described sleeve (3) is cylinder steel part, sleeve (3) is processed a ladder circular hole vertically,Sleeve (3) bottom radially processes a manhole.
4. according to automobile pattern measuring system mechanical type distortion factor measuring instrument claimed in claim 1, its spyLevy and be that described adjustment screw (4) is that standard hex bolts and the welding of trapezoidal round platform are made, trapezoidal round platformThe bottom surface diameter of minor diameter is identical with the diameter of bolt, and the bond length of trapezoidal round platform is less than sleeve (3) top0.5 millimeter of Circularhole diameter, the long edge lengths of trapezoidal round platform is greater than 1 millimeter of trapezoidal round platform bond length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095343.7U CN205246012U (en) | 2015-12-24 | 2015-12-24 | Car appearance measurement system mechanical type distortion coefficient measuring apparatu |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521095343.7U CN205246012U (en) | 2015-12-24 | 2015-12-24 | Car appearance measurement system mechanical type distortion coefficient measuring apparatu |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205246012U true CN205246012U (en) | 2016-05-18 |
Family
ID=55945082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521095343.7U Withdrawn - After Issue CN205246012U (en) | 2015-12-24 | 2015-12-24 | Car appearance measurement system mechanical type distortion coefficient measuring apparatu |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205246012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423952A (en) * | 2015-12-24 | 2016-03-23 | 吉林大学 | Automobile morphology measurement system mechanical distortion coefficient measuring instrument |
-
2015
- 2015-12-24 CN CN201521095343.7U patent/CN205246012U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423952A (en) * | 2015-12-24 | 2016-03-23 | 吉林大学 | Automobile morphology measurement system mechanical distortion coefficient measuring instrument |
| CN105423952B (en) * | 2015-12-24 | 2018-01-05 | 吉林大学 | The mechanical distortion factor measuring instrument of automobile shape measurement system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160518 Effective date of abandoning: 20180105 |
|
| AV01 | Patent right actively abandoned |