CN102620944A - Six-post type three-dimensional visual detection system for automobile wheel alignment parameters - Google Patents
Six-post type three-dimensional visual detection system for automobile wheel alignment parameters Download PDFInfo
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- CN102620944A CN102620944A CN2012101108404A CN201210110840A CN102620944A CN 102620944 A CN102620944 A CN 102620944A CN 2012101108404 A CN2012101108404 A CN 2012101108404A CN 201210110840 A CN201210110840 A CN 201210110840A CN 102620944 A CN102620944 A CN 102620944A
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Abstract
The invention discloses a six-post type three-dimensional visual detection system for automobile wheel alignment parameters, which aims to overcome the problem that the existing detection system adopts a high precision straight-line guide rail, is complex in structure, high in manufacturing cost and not suitable for wide range popularization, and cannot be adjusted to an asymmetric measurement system. The system comprises a front right plane mirror rapid clamping locating device (A), a front left plane mirror rapid clamping locating device (B), a rear right plane mirror rapid clamping locating device (C), a rear left plane mirror rapid clamping locating device (D), a left position adjustable camera mounting system (F) and a right position adjustable camera mounting system (E). The detection system disclosed by the invention can complete accurate measurement of the wheel alignment parameters during the detection process.
Description
Technical field
The present invention relates to a kind of checkout equipment of auto industry field, in particular, it relates to a kind of six pillar automotive wheel positional parameter stereo vision detection systems.
Background technology
For guaranteeing the control stability of automobile, the installation between the wheel of automobile, steering knuckle and the axletree three has certain relative position, is called wheel alignment.Whether the automotive wheel parameter is accurate, and driving safety, control stability and the fuel economy of automobile had material impact.Wheel alignment meter is the important checkout equipment of check vehicle safety.The national at present only recoverable amount of wheel alignment meter just reaches more than 30000, and is increasing progressively with annual 30% speed.
Stereoscopic vision is measured wheel alignment parameter can realize non-contact detecting, and the distance in the measuring system between two video cameras is called the baseline distance, and the length of baseline distance has determined the measuring accuracy of vision system, and baseline is apart from long more, and accuracy of measurement system is high more.For the vision measurement of realization system in the finite space; Patented claim " Three Degree Of Freedom automotive wheel positional parameter stereoscopic vision flexible detection system " (CN201110232257.6) proposed a kind of can be in the measuring system of the motion of both direction quadrature; But there is following problem in this scheme: 1. detection system adopts that high-precision linear guide rail structure is complicated, manufacturing cost is higher, is inappropriate on a large scale promoting; 2. system only is applicable to the situation that symmetry is installed, and can not be adjusted into the asymmetric measure system; 3. for the wheel of different sizes, the video camera of measuring system and level crossing height can not be adjusted as required, can't make the center of level crossing and the measurement plane of camera optical axis formation adjust to the wheel center height, make to measure to produce error.In the actual detected process; Need to structural parameters such as the position of different measuring situation adjustment measuring system each several part and angles, so six pillar automotive wheel positional parameter stereo vision detection systems are significant to the technical progress in automobile non-contact detecting field.
Summary of the invention
Adopt high-precision line slideway to present detection system; Manufacturing cost is higher; Be inappropriate on a large scale and promote and can't realize between each parts of Machine Vision Detection system relative position and the asymmetric adjustment of angle, provide that a kind of volume is less, each parts position and angle adjustment arbitrarily, low cost of manufacture, easy and simple to handle, dependable performance, highly versatile, the easy-to-install six pillar automotive wheel positional parameter stereo vision detection systems that satisfy national metering, quality supervised department and manufacturer's non-contact detecting requirement to realize the present situation of high precision non-contact detecting automotive wheel positional parameter.
Consult Fig. 1 to Fig. 6, for solving the problems of the technologies described above, the present invention adopts following technical scheme to be achieved.Right level crossing quick-clamping locating device, preceding left level crossing quick-clamping locating device, the right level crossing quick-clamping locating device in back, the left level crossing quick-clamping locating device in back, the video camera installation system of left adjustable positions and the video camera installation system of right adjustable positions before six pillar automotive wheel positional parameter stereo vision detection systems provided by the present invention include.
Before right level crossing quick-clamping locating device, preceding left level crossing quick-clamping locating device, the right level crossing quick-clamping locating device in back identical with the left level crossing quick-clamping positioning device structure in back; Before right level crossing quick-clamping locating device and preceding left level crossing quick-clamping locating device symmetry place; Before right level crossing quick-clamping locating device and preceding left level crossing quick-clamping locating device be 300mm-600mm along the distance of x direction; The right level crossing quick-clamping locating device in back, the left level crossing quick-clamping locating device symmetry in back are placed; The left level crossing quick-clamping locating device of right level crossing quick-clamping locating device in back and back is 200mm-500mm along the distance of x direction, and the right level crossing quick-clamping locating device of preceding right level crossing quick-clamping locating device and back is 200mm-600mm along the distance of y direction.
The video camera installation system of left side adjustable positions and the identical and symmetrical placement of video camera installation system structure of right adjustable positions; The distance of the video camera installation system of left side adjustable positions and the video camera installation system of right adjustable positions is 100mm-400mm, and the video camera installation system of left adjustable positions is 300mm-600mm with the left level crossing quick-clamping locating device in back along y direction distance.
Preceding right level crossing quick-clamping locating device described in the technical scheme includes level crossing, rubber cushion, clamping screw, set nut, set bolt, goes up angle steel, following angle steel, level crossing base and hold-down nut.
The level crossing base is placed on the smooth ground; Two set bolts pass down two manholes of angle steel respectively and two manholes of level crossing base are fixedly connected with two hold-down nut screw threads respectively; Clamping screw passes down two slotted holes of angle steel end face from bottom to top and two manholes of last angle steel bottom surface are fixedly connected with the set nut screw thread; The side of last angle steel and rubber cushion face contact matching; Rubber cushion and plane minute surface contact matching, the rectangular steel pipe face contact matching of level crossing and level crossing base.
Described level crossing base is welded by rectangular steel plates and rectangular steel pipe, perpendicular to six manholes of rectangular steel pipe broad one side symmetry processing.
Described angle steel is down made by angle steel, two slotted holes of end face symmetry processing of following angle steel, two manholes of side symmetry processing of following angle steel.
The described angle steel of going up is made by angle steel, two manholes of bottom surface symmetry processing of last angle steel.
Described rubber cushion is the rectangular rubber sheet.
Described level crossing is the rectangle minute surface.
The video camera installation system of the right adjustable positions described in the technical scheme includes video camera, bracket fixing bolt, adjustment support, base, video camera set bolt and nut.
Camera base is placed on the smooth ground; Two bracket fixing bolts pass two slightness holes of adjustment cradle respectively and two manholes of camera base are fixedly connected with two nut threads respectively, and the video camera set bolt passes the slightness hole of adjusting cradle top surface from bottom to top and the tapped blind hole of video camera bottom surface is fixedly connected with the video camera screw thread.
Described camera base is welded by rectangular steel plates and rectangular steel pipe, perpendicular to six manholes of rectangular steel pipe broad one side symmetry processing.
Described adjustment support is made by angle steel, and the end face of adjustment support is processed a slightness hole along its length, and the side of adjustment support is along two slightness holes of short transverse symmetry processing.
The length of described video camera set bolt is less than the thickness of adjustment support and the degree of depth sum of video camera tapped blind hole.
The invention has the beneficial effects as follows:
(1) adopts split type six rod structures; Can camera parts and the plane mirror element between relative distance, low cost of manufacture makes system can realize relative position and adjustment of angle symmetry and asymmetric adjustment between each parts of Machine Vision Detection system; The adjustment that has improved system is flexible; More flexible to realize the installation site, measurement range is bigger, the purpose that measuring accuracy is higher.
(2) video camera of this system and level crossing height can be adjusted as required; The height of the measurement plane that the center of level crossing and camera optical axis constitute can be adjusted in short transverse; For the wheel of different sizes, can measurement plane be adjusted to the wheel center height, make measurement more accurate.
(3) part of the present invention adopts the standard steel to process, and at first, standard steel output is big, and the machining operation is few, and production cost is lower; Secondly,, adopt the standard steel to have certain intensity as the important accessory of surveying instrument, can be indeformable in long-term the use, the precision that assurance is measured can satisfy the requirement of national standard to accuracy of detection; At last, part is the hollow-core construction that steel are formed, and greatly reduces the weight of checkout equipment, has improved equipment the dirigibility that adjustment is operated is installed.
Fig. 1 is the axonometric drawing of six pillar automotive wheel positional parameter stereo vision detection systems;
Fig. 2 is the perspective view of six pillar automotive wheel positional parameter stereo vision detection systems;
Fig. 3 is the axonometric drawing of preceding right level crossing quick-clamping locating device A;
Fig. 4 is the cut-open view of preceding right level crossing quick-clamping locating device A;
Fig. 5 is the axonometric drawing of the video camera installation system E of right adjustable positions;
Fig. 6 is the cut-open view of the video camera installation system E of right adjustable positions;
Among the figure: right level crossing quick-clamping locating device before the A., left level crossing quick-clamping locating device before the B., right level crossing quick-clamping locating device behind the C., left level crossing quick-clamping locating device behind the D., the video camera installation system of F. left side adjustable positions; E. the video camera installation system of right adjustable positions, A1. level crossing, A2. rubber cushion, A3. clamping screw; A4. set nut, A5. set bolt, the last angle steel of A6., angle steel under the A7.; A8. level crossing base, A9. hold-down nut, E1. video camera, E2. bracket fixing bolt; E3. adjust support, E4. base, E5. video camera set bolt, E6. nut.
Embodiment
Below in conjunction with accompanying drawing the present invention is made further detailed description:
Consult Fig. 1 to Fig. 6, six pillar automotive wheel positional parameter stereo vision detection systems are made up of preceding right level crossing quick-clamping locating device A, preceding left level crossing quick-clamping locating device B, the right level crossing quick-clamping locating device C in back, the left level crossing quick-clamping locating device D in back, the video camera installation system F of left adjustable positions and the video camera installation system E of right adjustable positions.
Before right level crossing quick-clamping locating device A, preceding left level crossing quick-clamping locating device B, the right level crossing quick-clamping locating device C in back identical with the left level crossing quick-clamping locating device D structure in back; Before right level crossing quick-clamping locating device A and preceding left level crossing quick-clamping locating device B symmetry place; Before right level crossing quick-clamping locating device A and preceding left level crossing quick-clamping locating device B be 300mm-600mm along the distance of x direction; The right level crossing quick-clamping locating device C in back, the left level crossing quick-clamping locating device D symmetry in back are placed; Right level crossing quick-clamping locating device C in back and the left level crossing quick-clamping locating device D in back are 200mm-500mm along the distance of x direction, and preceding right level crossing quick-clamping locating device A and the right level crossing quick-clamping locating device C in back are 200mm-600mm along the distance of y direction.
The video camera installation system F of left side adjustable positions and the identical and symmetrical placement of video camera installation system E structure of right adjustable positions; The distance of the video camera installation system F of left side adjustable positions and the video camera installation system E of right adjustable positions is 100mm-400mm, and the video camera installation system F of left adjustable positions and the left level crossing quick-clamping locating device D in back are 300mm-600mm along y direction distance.
Before right level crossing quick-clamping locating device A include level crossing A1, rubber cushion A2, clamping screw A3, set nut A4, set bolt A5, go up angle steel A6, angle steel A7, level crossing base A8 and hold-down nut A9 down.
Level crossing base A8 is welded by rectangular steel plates and rectangular steel pipe; Level crossing base A8 is placed on the smooth ground; Level crossing base A8 processes with the standard steel; The one, in order to alleviate the weight of level crossing base A8; The 2nd, can reduce machining amount, perpendicular to six manholes of rectangular steel pipe broad one side symmetry processing, two set bolt A5 pass down two manholes of angle steel A7 respectively and two manholes of level crossing base A8 are fixedly connected with two hold-down nut A9 screw threads respectively.
Following angle steel A7 is made by angle steel; Two slotted holes of end face symmetry processing of following angle steel A7; Two manholes of side symmetry processing of following angle steel A7, clamping screw A3 passes down two slotted holes of angle steel A7 end face from bottom to top and two manholes of last angle steel A6 bottom surface are fixedly connected with set nut A4 screw thread.
Last angle steel A6 is made by angle steel, bottom surface symmetry processing two manholes, the side of last angle steel A6 and the rubber cushion A2 face contact matching of last angle steel A6.
Rubber cushion A2 is the rectangular rubber sheet, rubber cushion A2 and level crossing A1 face contact matching.
Level crossing A1 is the rectangle minute surface, the rectangular steel pipe face contact matching of level crossing A1 and level crossing base A8.
The video camera installation system E of right adjustable positions includes video camera E1, bracket fixing bolt E2, adjustment support E3, base E4, video camera set bolt E5 and nut E6.
Camera base E4 is welded by rectangular steel plates and rectangular steel pipe; Camera base E4 is placed on the smooth ground; Camera base E4 processes with the standard steel; The one, in order to alleviate the weight of camera base E4; The 2nd, can reduce machining amount, perpendicular to six manholes of rectangular steel pipe broad one side symmetry processing, two bracket fixing bolt E2 pass two slightness holes of adjustment support E3 side respectively and two manholes of camera base E4 are fixedly connected with two nut E6 screw threads respectively.
Adjustment support E3 is made by angle steel; The end face of adjustment support E3 is processed a slightness hole along its length; Be used for video camera adjustment along its length; The side of adjustment support E3 is along two slightness holes of short transverse symmetry processing; Video camera set bolt E5 passes the slightness hole of adjustment support E3 end face from bottom to top and the tapped blind hole of video camera E1 bottom surface is fixedly connected with video camera E1 screw thread, and the length of video camera set bolt E5 is less than the thickness of adjustment support E3 and the degree of depth sum of video camera E1 tapped blind hole.
The method of application of six pillar automotive wheel positional parameter stereo vision detection systems:
Preceding right level crossing quick-clamping locating device A and preceding left level crossing quick-clamping locating device B symmetry are placed; Before right level crossing quick-clamping locating device A and preceding left level crossing quick-clamping locating device B be 300mm-600mm along the distance of x direction; The right level crossing quick-clamping locating device C in back, the left level crossing quick-clamping locating device D symmetry in back are placed; Right level crossing quick-clamping locating device C in back and the left level crossing quick-clamping locating device D in back are 200mm-500mm along the distance of x direction; Before right level crossing quick-clamping locating device A be 200mm-600mm with the right level crossing quick-clamping locating device C in back along the distance of y direction; The video camera installation system F of left adjustable positions and the video camera installation system E symmetry of right adjustable positions are placed; The distance of the video camera installation system F of left side adjustable positions and the video camera installation system E of right adjustable positions is 100mm-400mm, and the video camera installation system F of left adjustable positions and the left level crossing quick-clamping locating device D in back are 300mm-600mm along y direction distance.Computing machine is gathered in real time two width of cloth by the wheel image after twice of the flat mirror reflects through video frequency collection card, accomplishes image characteristics extraction, characteristic matching, three-dimensional reconstruction then successively and obtains wheel-position data, accomplishes wheel alignment parameter and detects.
Claims (1)
1. pillar automotive wheel positional parameter stereo vision detection system, it is characterized in that described six pillar automotive wheel positional parameter stereo vision detection systems include before the video camera installation system (E) of video camera installation system (F) and right adjustable positions of right level crossing quick-clamping locating device (A), preceding left level crossing quick-clamping locating device (B), back right level crossing quick-clamping locating device (C), back left level crossing quick-clamping locating device (D), left adjustable positions;
Before right level crossing quick-clamping locating device (A), preceding left level crossing quick-clamping locating device (B), the right level crossing quick-clamping locating device in back (C) identical with back left level crossing quick-clamping locating device (D) structure; Before right level crossing quick-clamping locating device (A) and preceding left level crossing quick-clamping locating device (B) symmetry place; Before right level crossing quick-clamping locating device (A) and preceding left level crossing quick-clamping locating device (B) be 300mm-600mm along the distance of x direction; Back right level crossing quick-clamping locating device (C), the left level crossing quick-clamping locating device in back (D) symmetry are placed; Back right level crossing quick-clamping locating device (C) and the left level crossing quick-clamping locating device in back (D) are 200mm-500mm along the distance of x direction, and preceding right level crossing quick-clamping locating device (A) and the right level crossing quick-clamping locating device in back (C) are 200mm-600mm along the distance of y direction;
The video camera installation system (F) of left side adjustable positions and the identical and symmetrical placement of video camera installation system (E) structure of right adjustable positions; The video camera installation system (F) of left side adjustable positions is 100mm-400mm with the distance of the video camera installation system (E) of right adjustable positions, and the video camera installation system (F) of left adjustable positions is 300mm-600mm with the left level crossing quick-clamping locating device in back (D) along y direction distance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101108404A CN102620944A (en) | 2012-04-17 | 2012-04-17 | Six-post type three-dimensional visual detection system for automobile wheel alignment parameters |
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| CN2012101108404A CN102620944A (en) | 2012-04-17 | 2012-04-17 | Six-post type three-dimensional visual detection system for automobile wheel alignment parameters |
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Application publication date: 20120801 |