CN102967276B - Method for detecting degree of adaptability between glass and windscreen wiper - Google Patents
Method for detecting degree of adaptability between glass and windscreen wiper Download PDFInfo
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- CN102967276B CN102967276B CN201210546134.4A CN201210546134A CN102967276B CN 102967276 B CN102967276 B CN 102967276B CN 201210546134 A CN201210546134 A CN 201210546134A CN 102967276 B CN102967276 B CN 102967276B
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Abstract
The invention relates to a method for detecting a glass profile, and especially relates to a method for detecting the adaptability between glass and a windscreen wiper. The method comprises the following steps of: (1) placing the windscreen wiper and the glass to be detected on a worktable, acquiring the image data of the windscreen wiper and the glass through reverse engineering and transmitting the image data to an image processing module; (2) obtaining a glass action line formed by a wiper blade at various positions in a stroke range by the image processing module; (3) converting the glass action line in the step 2 into parameter data capable of carrying out index detection; and (4) carrying out index detection on the parameter data and judging that whether the adaptability between the windscreen wiper and the glass satisfies the requirement or not according to that whether the parameter data is in a set range. The method has the advantages of dispensing with detection instruments which are high in cost and easy to damage so as to reduce the production cost and analyzing the parameters which cannot be measured by the original detection instrument so as to obtain correct measurement result.
Description
Technical field:
The present invention relates to a kind of detection method of glass profile, particularly the detection method of the fitness of a kind of windshield and windscreen wiper.
Background technology:
Along with the development of automotive engineering, people are more and more higher to the requirement of vehicle security energy aspect.Windscreen wiper, as parts indispensable on motor vehicles, can be cleared away water, snow and sand and dust on windshield effectively, ensures that driver still has the good visual field in the time of adverse weather, guarantees traffic safety.If coordinating of the outside surface of the scraping blade of windscreen wiper and windshield is bad, can cause the problems such as wiper noise and wiping effect be poor, this just needs carry out determination and analysis to the fitness of windscreen wiper and windshield in advance.The determinative of the fitness of windscreen wiper and windshield comprises the windscreen wiper angle of attack, angle of attack gradient, curvature and curvature gradient etc.Wherein, the windscreen wiper angle of attack is an important parameter that determines windscreen wiper and windshield fitness, is to represent that wiper blades is in operational process, the angular relationship between scraping blade and glass.In the time that windscreen wiper fitness parameter is in scope of design, scraping blade operational process is steady, smooth and easy, good with glass contact; And in the time that windscreen wiper fitness parameter exceeds scope of design, in operational process, there will be the scraping blade phenomenon such as shake, beat, then cause the problems such as noise and wiping effect be poor.
In prior art, normally adopt windscreen wiper angle of attack instrument to measure this angle, by the windscreen wiper angle of attack and the setting value that detect are contrasted, in the time that the windscreen wiper angle of attack is less than setting value, judge that the outside surface of glass and windscreen wiper fitness meet the demands.And fix from the angle of attack apparatus frame of external import at present, can accurately simulate the position of the coupling shaft of original windscreen wiper system scraping arm and scraping blade, but can not accurately simulate the position of scraping arm and swing arm coupling shaft, inconsistent with actual conditions, in analytic process, there is certain error.And this angle of attack instrument is expensive, easily damage.
Chinese patent CN101430185 also discloses a kind of method that adopts attack angle measurement instrument to measure this angle, by measuring the fit angle of scraping arm and glass, thus the approximate angle drawing between scraping blade and glass, there is certain error in measurement result; The method can only be for detection of the angle of attack of scraping blade and scraping blade connecting rod connecting portion branch, and measurement data is single; The glass windscreen wiper system that attack angle measurement instrument can only be exclusively used in correspondingly-sized carries out Entity measurement, and range of application is restricted.
Summary of the invention:
Technical matters to be solved by this invention is the shortcoming that measuring error is large, cost is high existing for the detection method of the fitness of existing glass and windscreen wiper, and a kind of detection method of the fitness of measuring glass accurate, with low cost and windscreen wiper is provided.
The technical solution adopted for the present invention to solve the technical problems is:
The detection method of the fitness of a kind of glass and windscreen wiper, described windscreen wiper comprises swing arm, scraping arm and scraping blade, described swing arm is rotationally connected by the first rotating shaft and vehicle body, described swing arm and described scraping arm are rotationally connected by the second rotating shaft, described scraping arm and described scraping blade are rotationally connected by the 3rd rotating shaft, it is characterized in that: the method comprises the steps:
Step 1: windscreen wiper to be detected and glass are positioned on worktable according to assembly relation, gather the geometric data of described windscreen wiper and the cooperation of described glass by reverse-engineering, described geometric data is transferred to image processing module, and described geometric data forms after treatment three-dimensional model in image processing module;
Step 2: the action by the three-dimensional model simulation windscreen wiper in described image processing module on the outside surface of glass, thus determine the glass active line that scraping blade forms in the time of diverse location on the outside surface of glass;
Step 3: the supplemental characteristic that solves the fitness that affects glass and windscreen wiper according to glass active line definite in step 2, described supplemental characteristic comprises the angle of attack, and the described angle of attack is the angle between the glass surface normal of certain point on glass active line and the vertical plane of the second rotating shaft;
Step 4: described supplemental characteristic is carried out to index detection, whether in setting range, judge whether the fitness of windscreen wiper and glass meets the demands according to described supplemental characteristic.
Further, geometric data described in step 1 comprises described the first rotating shaft, the second rotating shaft, the 3rd rotating shaft and the locus of scraping blade active line and the outside surface of described glass, described scraping blade active line be on scraping blade with the active line in outside surface when laminating of glass.
Further, the method of the definite glass active line described in step 2 is: first described scraping blade active line is turned to each position in stroke range around the first rotating shaft, then described scraping blade active line is rotated and makes A point bee-line to the outside surface of described glass in windscreen wiper plane equal d around described the second rotating shaft
1, on the intersection of the outside surface of windscreen wiper plane and glass, be now E point to the shortest any of A point distance; On one end away from the first rotating shaft on described intersection, choose F point, make the arc length between F point and E point equal d
2; On described intersection, choose G point near on one end of the first rotating shaft, make the arc length between G point and E point equal d
3; Segment of curve on described intersection between F point and G point is exactly glass active line;
Wherein, A point is the intersection point of described the 3rd rotating shaft and windscreen wiper plane, B point be on scraping blade active line to A point distance the shortest a bit, C point is the end points away from the first rotating shaft on scraping blade active line, D point is the end points of close the first rotating shaft on scraping blade active line, d
1for the line segment length between A point and B point, d
2for the arc length between B point on scraping blade active line and C point, d
3for between B point on scraping blade active line and D point arc length, described windscreen wiper plane is the plane at scraping blade active line place.
Further, in index detects, the setting range of the described angle of attack is ± 9 degree.
Further, the supplemental characteristic described in step 3 also comprises linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient; Described linear angle of attack gradient is the ratio of the arc length of the glass active line between the angle of attack variation of adjacent 2 and these 2 on glass active line; Described angle property angle of attack gradient be on adjacent glass active line with interior end points separately between the arc length angle of attack of 2 and the angle of these two adjacent glass active line place planes that equate between ratio; Described radius-of-curvature is the radius-of-curvature of upper certain point of glass active line; Described curvature gradient is the ratio of the arc length of the glass active line between the variation of radius-of-curvature of adjacent 2 and these 2 on glass active line.
Further, in index detects, the setting range of described linear angle of attack gradient is ± 0.04 degree/millimeter, the setting range of described angle property angle of attack gradient is ± 0.5 degree/degree, the setting range of described radius-of-curvature is 1500 millimeters to 15000 millimeters, and the setting range of described curvature gradient is ± 27 millimeters/millimeter.
Further, the method that solves the angle of attack in step 3 is: take up an official post and get 1 P at described glass active line, obtain respectively the vertical plane of the second rotating shaft and cross the normal of P point perpendicular to the outside surface of glass, the angle of finally obtaining between described vertical plane and described normal is the angle of attack.
Further, the method for solving of described linear angle of attack gradient is: glass active line take up an official post get 1 P and and P point between arc length be L1 and near a bit of the interior end points of P point place active line, obtain this angle of attack of 2 and be respectively a1 and a2, angle of attack gradient=(a1-a2)/L1 that P is ordered; The method for solving of described angle property angle of attack gradient is: on two adjacent glass active lines, get 2 points that the arc length between interior end points separately equates, the angle of described adjacent two glass active line place planes is a4, obtain this angle of attack of 2 and be respectively a2 and a3, that wherein the angle of attack is a2 is some P point, angle property angle of attack gradient=(a3-a2)/a4 that P is ordered; The method for solving of described radius-of-curvature is: described glass active line take up an official post get 1 P and and P point between other 2 points that equate of arc length, the radius of a circle of these 3 compositions is the radius-of-curvature that P is ordered; The method for solving of described curvature gradient is: glass active line take up an official post get 1 P and and P point between arc length be L2 and near a bit of the interior end points of P point place active line, obtain this radius-of-curvature of 2 and be respectively r5 and r6, curvature gradient=(r6-r5)/L2 that P is ordered.
Further, in described step 4, if described supplemental characteristic exceeds setting range, add up described supplemental characteristic and exceed the region of setting range as the defect area of glass.
Further, the geometric data described in step 1 is replaced the data that use reverse-engineering to gather by the data of Computer Design.
The present invention is owing to having taked technique scheme, and it has following beneficial effect:
(1) directly adopt reverse-engineering acquisition of image data and convert to and can carry out the supplemental characteristic of index detection, thereby realizing the determination and analysis of the windscreen wiper angle of attack, not needing purchasing price costliness to hold again flimsy windscreen wiper angle of attack detecting instrument, cost-saving;
(2) all sizes are simulated according to the size of wiper body completely, can analyze original angle of attack detecting instrument measure less than parameter, more accurate than apparatus measures, more approach virtual condition;
(3) adopt method of the present invention, just can analyze the fitness of windscreen wiper and glass in the design phase, avoid later development unsuccessfully to cause huge economic loss.
Brief description of the drawings:
Fig. 1: the structural representation of glass of the present invention and windscreen wiper;
Fig. 2: the process flow diagram of the detection method of the fitness of glass of the present invention and windscreen wiper;
Fig. 3: the schematic diagram of the parameter of scraping blade active line of the present invention;
Fig. 4: the schematic diagram of the parameter of glass active line of the present invention;
Fig. 5: the schematic diagram of the location parameter of the some P on glass active line of the present invention;
Fig. 6: the schematic diagram of linear angle of attack gradient parameter of the present invention;
Fig. 7: the schematic diagram of angle property angle of attack gradient parameter of the present invention;
Fig. 8: the schematic diagram of curvature gradient parameter of the present invention;
Fig. 9: the curve map of the relation of the angle of attack of the present invention and glass active line rotational angle;
Figure 10: linear angle of attack gradient of the present invention and this point are to the curve map of the relation of the arc length of interior end points;
Figure 11: the curve map of the relation of angle property angle of attack angle of attack gradient of the present invention and glass active line rotational angle;
Figure 12: radius-of-curvature of the present invention and this point are to the curve map of the relation of the arc length of interior end points;
Figure 13: curvature gradient of the present invention and this point are to the curve map of the relation of the arc length of interior end points.
Embodiment:
Below in conjunction with accompanying drawing, content of the present invention is described further.
The windscreen wiper angle of attack is an important parameter that determines windscreen wiper and windshield fitness, and the curvature of glass profile directly affects the angle of attack size of windscreen wiper and changes.In windscreen wiper rotation process, the required scraping arm expulsive force of the identical scraping blade pressure of the larger generation of the windscreen wiper angle of attack is also larger, and the continuous variation of the angle of attack also can impact and affect steadily sweeping of windscreen wiper windscreen wiper power system.Object of the present invention is exactly size and the situation of change of the windscreen wiper angle of attack by analyzing glass profile, is confirmed whether to allow the scraping blade outside surface of glass of fitting completely, solves the matching problem of windscreen wiper and windshield; Analysis result can be for the design of glass mould face and amendment, also can and judge for design windscreen wiper whether glass is applicable to assembling windscreen wiper.
Below introduce for convenient, first the relevant portion in windscreen wiper system named:
As shown in Figure 1, windscreen wiper 10 described in the present invention comprises swing arm 14, scraping arm 15 and scraping blade 16, described swing arm 14 is rotationally connected with vehicle body by the first rotating shaft 11, described swing arm 14 and described scraping arm 15 are rotationally connected by the second rotating shaft 12, and described scraping arm 15 and described scraping blade 16 are rotationally connected by the 3rd rotating shaft 13.
1. scraping blade active line be on scraping blade 16 with the active line in outside surface when laminating of glass 20, the osculatory of the outside surface of scraping blade 16 and glass 20 when namely windscreen wiper 10 sweeps, it is bar plane curve, and in the time that windscreen wiper sweeps, scraping blade effect curvature of a curve changes along with the variation of the outside surface of glass 20.
2. the active line forming while fitting tightly with scraping blade 16 on the outside surface of glass 20 described in when glass active line sweeps for windscreen wiper.In the time that the intimate of scraping blade and glass is fitted, the plastic deformation of scraping blade active line is fitted in formation glass active line on glass.
Two end points of glass active line are defined as respectively outer end points and interior end points, and described outer end points is distance the first rotating shaft 11 end points far away on glass active line, and described interior end points is the nearer end points of distance the first rotating shaft 11 on glass active line.
Glass active line rotational angle a refers to the angle of the physical location of glass active line and the initial position of glass active line, and the initial position of described glass active line is the glass active line residing position of windscreen wiper while quitting work.
3. windscreen wiper plane is the plane at scraping blade active line place, and described scraping blade active line is positioned on the outside surface of glass 20 and the intersection of windscreen wiper plane.
4. the angle of attack is to sweep district at windscreen wiper, the angle on glass active line between the glass surface normal of certain point and the vertical plane of the second rotating shaft 12.
5. linear angle of attack gradient be windscreen wiper in optional position on glass, the angle of attack variation gradient of each location point on glass active line, the i.e. ratio of the arc length of the glass active line between the angle of attack variation of adjacent 2 and these 2 on glass active line.
6. angle property angle of attack gradient be at windscreen wiper in rotation process, the angle of attack variation gradient of certain point on glass active line, on adjacent glass active line with interior end points separately between the arc length angle of attack of 2 and the angle of these two adjacent glass active line place planes that equate between ratio.
7. the windscreen wiper curvature of glass is glass effect curvature of a curve, the i.e. radius-of-curvature of the upper arbitrfary point of glass active line.
8. curvature gradient refers to that windscreen wiper is in optional position on glass, the radius-of-curvature variable gradient of each location point on glass active line, the i.e. ratio of the glass active line length between the variation of the radius-of-curvature of adjacent 2 and these 2 on glass active line.
In order to illustrate in greater detail inventive point of the present invention, below elaborate the detection method of the fitness of a kind of glass of the present invention 20 and windscreen wiper 10.Described windscreen wiper 10 comprises swing arm 14, scraping arm 15 and scraping blade 16, described swing arm 14 is rotationally connected with vehicle body by the first rotating shaft 11, described swing arm 14 and described scraping arm 15 are rotationally connected by the second rotating shaft 12, and described scraping arm 15 and described scraping blade 16 are rotationally connected by the 3rd rotating shaft 13.Simplify modeling process, suppose scraping blade unlimited flexibility in windscreen wiper plane glass of fitting completely, scraping blade is incompressible, and windscreen wiper length is constant, the whole rigidity of windscreen wiper system.
As shown in the process flow diagram in Fig. 2, the method comprises the steps:
1) windscreen wiper to be detected 10 and glass 20 are positioned on worktable, gather by reverse-engineering the geometric data that described windscreen wiper 10 and described glass 20 coordinate, described geometric data is transferred to image processing module; Described geometric data comprises described the first rotating shaft 11, the second rotating shaft 12, the 3rd rotating shaft 13 and the locus of scraping blade active line 161 and the outside surface of described glass 20, described scraping blade active line 161 be on scraping blade 16 with the active line in outside surface when laminating of glass 20;
For windscreen wiper 10 and glass 20 prints, utilize 3D digitalized measuring apparatus, measure accurately and rapidly the some data of the first rotating shaft 11, the second rotating shaft 12, the 3rd rotating shaft 13, the locus of scraping blade active line 161 and the outside surface of glass 20 of windscreen wiper 10, put data processing, curved surface establishment, the image processing module that reaches CAD geometry designs after amendment is constructed 3D dummy model.
In order just can to analyze the fitness of windscreen wiper and glass in the design phase, avoid later development unsuccessfully to cause huge economic loss, can directly the good geometric data of Computer Design be transferred to image processing module and process.
2) determine the glass active line that scraping blade forms on the outside surface at glass in the time of each position.
Windscreen wiper 10 in the time of real work, swing arm 14 in stroke range around the first rotating shaft 11 reciprocally swingings.In the process swinging in swing arm 14, scraping arm 15 can rotate scraping blade 16 and the intimate of glass 20 are fitted around the second rotating shaft 12, on the outside surface of glass 20, form a glass active line, described glass active line is for fitting tightly formed active line with described scraping blade 16 on the outside surface of described glass 20 simultaneously.
In scraping arm wiper process, to scrape on the outside surface that sector-meeting generation plastic deformation is fitted in glass, scraping blade effect curvature of a curve changes along with the variation of the curvature of glass outer surface, but the arc length of scraping blade active line remains unchanged.In scraping blade plastic deformation process, on scraping blade active line, there is the relative position of a reference point and the 3rd rotating shaft can not change, that is to say that scraping blade active line is around this reference point generation plastic deformation, this reference point is the shortest unique point of distance that arrives the intersection point of described the 3rd rotating shaft and windscreen wiper plane on scraping blade active line.Therefore, can be according to scraping blade under state of nature, when scraping blade does not contact glass outer surface, two end points of scraping blade active line divide the arc length that is clipped to this reference point, extrapolate scraping blade two end points position on the outside surface of glass under fit-state.
As shown in Figure 3 and Figure 4, the present invention simulates windscreen wiper action by the constructed 3D dummy model of image processing module, when described scraping blade active line 161 is in the time that the first rotating shaft 11 turns to each position in stroke range, described scraping blade active line 161 is rotated and makes A point bee-line to the outside surface of described glass 20 in windscreen wiper plane equal d around described the second rotating shaft 12
1, on the intersection of the outside surface of windscreen wiper plane and glass 20, be now E point to the shortest any of A point distance; On one end away from the first rotating shaft 11 on described intersection, choose F point, make the arc length between F point and E point equal d
2; On described intersection, choose G point near on one end of the first rotating shaft 11, make the arc length between G point and E point equal d
3; Segment of curve on described intersection between F point and G point is exactly glass active line.
Wherein, A point is described the 3rd rotating shaft 13 and the intersection point of windscreen wiper plane, B point be on scraping blade active line 161 to A point apart from the shortest a bit, C point is the end points away from the first rotating shaft 11 on scraping blade active line 161, D point is the end points near the first rotating shaft 11 on scraping blade active line 161, d
1for the line segment length between A point and B point, d
2for the arc length between B point on scraping blade active line 161 and C point, d
3for between B point on scraping blade active line 161 and D point arc length, described windscreen wiper plane is the plane at scraping blade active line 161 places.
3) solve windscreen wiper parameters in series, comprise the angle of attack, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient.
As shown in Figure 5, P point refers to that scraping blade active line has rotated a angle, the point that is L to the arc length between end points in glass active line on glass active line.
The method for solving of the angle of attack: take up an official post and get 1 P at described glass active line, obtain respectively the vertical plane of the second rotating shaft 12 and cross the normal of P point perpendicular to the outside surface of glass 20, the angle of finally obtaining between described vertical plane and described normal is the angle of attack.
The method for solving of linear angle of attack gradient: as shown in Figure 6, glass active line take up an official post get 1 P and and P point between arc length be L1 and near a bit of the interior end points of P point place active line, obtain this angle of attack of 2 and be respectively a1 and a2, angle of attack gradient=(a1-a2)/L1 that P is ordered.
The method for solving of angle property angle of attack gradient: as shown in Figure 7, on two adjacent glass active lines, get 2 points that the arc length between interior end points separately equates, the angle of described adjacent two glass active line place planes is a4, obtain this angle of attack of 2 and be respectively a2 and a3, that wherein the angle of attack is a2 is some P point, angle property angle of attack gradient=(a3-a2)/a4 that P is ordered.
The method for solving of radius-of-curvature: the radius-of-curvature of refering in particular to windscreen wiper and sweep the arbitrfary point on middle glass active line.The radius-of-curvature method that the upper P of approximate solution glass active line is ordered is: described glass active line take up an official post get 1 P and and P point between other 2 points that equate of arc length, the radius of a circle of these 3 compositions is the radius-of-curvature that P is ordered.
The method for solving of curvature gradient: as shown in Figure 8, glass active line take up an official post get 1 P and and P point between arc length be L2 and near a bit of the interior end points of P point place active line, obtain this radius-of-curvature of 2 and be respectively r5 and r6, curvature gradient=(r6-r5)/L2 that P is ordered.
4) parameters such as the angle of attack, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient are carried out to index detection, whether in setting range, judge whether the fitness of windscreen wiper 10 and glass 20 meets the demands according to described supplemental characteristic.
The angle of attack General Requirements of glass profile, within the scope of ± 9 degree, will cause windscreen wiper steadily to scrape if the angle of attack goes beyond the scope, and easily makes windscreen wiper that shake and abnormal sound occur.
The angle property angle of attack gradient General Requirements of glass profile, within the scope of ± 0.5 degree/degree, if angle property angle of attack gradient goes beyond the scope, will cause windscreen wiper steadily to scrape, and easily make windscreen wiper that shake and abnormal sound occur.
The linear angle of attack gradient General Requirements of glass profile, in ± 0.04 degree/millimeter scope, if linear angle of attack gradient is excessive, will cause the force unbalance that is subject to of windscreen wiper both sides, also easily makes windscreen wiper that shake and abnormal sound occur.
The radius-of-curvature General Requirements of the glass active line of glass profile is at 1500 millimeters within the scope of 15000 millimeters, if radius-of-curvature is excessive, the both sides of windscreen wiper can not touch glass, easily makes windscreen wiper two ends sweep unclean; If radius-of-curvature is too small, the centre of windscreen wiper can not touch glass, easily makes windscreen wiper centre sweep unclean.
Glass profile upper glass effect curvature of a curve gradient General Requirements, within the scope of ± 27 millimeters/millimeter, if curvature gradient goes beyond the scope, also easily makes windscreen wiper can not touch glass, and windscreen wiper can not well sweep glass like this.
If windscreen wiper angle of attack parameters in series all, in setting range, judges that glass 20 and windscreen wiper 10 fitnesss meet the demands; If windscreen wiper angle of attack parameters in series exceeds setting range, add up windscreen wiper angle of attack parameters in series and exceed the region of setting range as the defect area of glass 20.Analysis result can be for the design of glass mould face and amendment, also can and judge for design windscreen wiper whether glass is applicable to assembling windscreen wiper.
The curve map of windscreen wiper angle of attack parameters in series can be realized by the draw mode of additional hand computation of craft, but manual mode work is more loaded down with trivial details, wastes time and energy.The present invention has developed corresponding software to this, software mainly comprises input, output and analyzes three part compositions.
The input of this software comprises on rain shaving blade number of positions that the outside surface, glass active line rotational angle, needs of the first rotating shaft, the second rotating shaft, the 3rd rotating shaft, scraping blade active line, glass are arranged and scraping blade active line and is evenly arranged quantity a little.The output of this software comprises the angle of attack value of each layout points on each windscreen wiper placement location, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient.This software Output rusults show various ways, in accompanying drawing of the present invention, only list wherein a kind of, if Fig. 6 is to the curve map of windscreen wiper parameters in series that Figure 10 shows that certain glass profile.
As shown in Figure 9, on glass active line, be within the scope of 0 to 700mm to the arc length of interior end points, choose a point every 35mm, horizontal ordinate represents the glass active line rotational angle of this point, ordinate represents the angle of attack of this point, and curve represents the relation of the angle of attack and the glass active line rotational angle of these points.The angle of attack of all layout points all, within the scope of ± 9 degree, meets the requirements.
As shown in figure 10, be within the scope of 0 ° to 80 ° at glass active line rotational angle, choose a glass active line every 5 °, horizontal ordinate represents that the layout points on glass active line arrives the arc length of interior end points, ordinate represents linear angle of attack gradient, and curve represents the linear angle of attack gradient of the layout points on these glass active lines and this some relation to the arc length of interior end points.The linear angle of attack gradient of all layout points all, in ± 0.04 degree/millimeter scope, meets the requirements.
As shown in figure 11, on glass active line, be within the scope of 0 to 700mm to the arc length of interior end points, choose a point every 35mm, horizontal ordinate represents the glass active line rotational angle of this point, ordinate represents the angle property angle of attack gradient of this point, and curve represents the angle property angle of attack gradient of these points and the relation of glass active line rotational angle.The angle property angle of attack gradient of all layout points all, within the scope of ± 0.5 degree/degree, meets the requirements.
As shown in figure 12, be within the scope of 0 ° to 80 ° at glass active line rotational angle, choose a glass active line every 5 °, horizontal ordinate represents that the layout points on glass active line arrives the arc length between interior end points, ordinate represents the radius-of-curvature of this layout points, and curve represents the radius-of-curvature of the layout points on these glass active lines and this some relation to the arc length between interior end points.The radius-of-curvature of all layout points all at 1500 millimeters within the scope of 15000 millimeters, meet the requirements.
As shown in figure 13, be within the scope of 0 ° to 80 ° at glass active line rotational angle, choose a glass active line every 5 °, horizontal ordinate represents that the layout points on glass active line arrives the arc length between interior end points, ordinate represents the curvature gradient of this layout points, and curve represents the curvature gradient of the layout points on these glass active lines and this some relation to the arc length between interior end points.The curvature gradient of all layout points all, within the scope of ± 27 millimeters/millimeter, meets the requirements.
The parameters such as the angle of attack of this vehicle windshield profile, linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature, curvature gradient are all in scope of design, and therefore the fitness of this windshield and windscreen wiper meets the requirements.
The detection method of the fitness of above content to a kind of windshield of the present invention and windscreen wiper specifically describes; but the present invention is not subject to the limitation of embodiment content described above; so any improvement, simplification, equivalent modifications and replacement etc. that all foundations technical essential of the present invention is carried out, all belong to the scope of protection of the invention.
Claims (10)
1. the detection method of the fitness of a glass and windscreen wiper, described windscreen wiper (10) comprises swing arm (14), scraping arm (15) and scraping blade (16), described swing arm (14) is rotationally connected by the first rotating shaft (11) and vehicle body, described swing arm (14) and described scraping arm (15) are rotationally connected by the second rotating shaft (12), described scraping arm (15) and described scraping blade (16) are rotationally connected by the 3rd rotating shaft (13), it is characterized in that: the method comprises the steps:
Step 1: windscreen wiper to be detected (10) and glass (20) are positioned on worktable according to assembly relation, gather the geometric data of described windscreen wiper (10) and described glass (20) cooperation by reverse-engineering, described geometric data is transferred to image processing module, and described geometric data forms after treatment three-dimensional model in image processing module;
Step 2: the action by the three-dimensional model simulation windscreen wiper (10) in described image processing module on the outside surface of glass (20), thus determine the glass active line that scraping blade (16) forms in the time of diverse location on the outside surface of glass (20);
Step 3: the supplemental characteristic that solves the fitness that affects glass and windscreen wiper according to glass active line definite in step 2, described supplemental characteristic comprises the angle of attack, and the described angle of attack is the angle between the glass surface normal of certain point on glass active line and the vertical plane of the second rotating shaft (12);
Step 4: described supplemental characteristic is carried out to index detection, whether in setting range, judge whether the fitness of windscreen wiper (10) and glass (20) meets the demands according to described supplemental characteristic.
2. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: the geometric data described in step 1 comprises described the first rotating shaft (11), the second rotating shaft (12), the 3rd rotating shaft (13) and the locus of scraping blade active line (161) and the outside surface of described glass (20), described scraping blade active line (161) is the active line on scraping blade (16) and when the outside surface of glass (20) is fitted.
3. the detection method of the fitness of glass according to claim 2 and windscreen wiper, it is characterized in that: the method for the definite glass active line described in step 2 is: first described scraping blade active line (161) is turned to each position in stroke range around the first rotating shaft (11), then described scraping blade active line (161) is rotated and makes A point bee-line to the outside surface of described glass (20) in windscreen wiper plane equal d around described the second rotating shaft (12)
1, on the intersection of the outside surface of windscreen wiper plane and glass (20), be now E point to the shortest any of A point distance; On one end away from the first rotating shaft (11) on described intersection, choose F point, make the arc length between F point and E point equal d
2; On described intersection, choose G point near on one end of the first rotating shaft (11), make the arc length between G point and E point equal d
3; Segment of curve on described intersection between F point and G point is exactly glass active line;
Wherein, A point is the intersection point of described the 3rd rotating shaft (13) and windscreen wiper plane, B point is that scraping blade active line (161) is upper to the shortest a bit of A point distance, C point is the upper end points away from the first rotating shaft (11) of scraping blade active line (161), D point is the upper end points near the first rotating shaft (11) of scraping blade active line (161), d
1for the line segment length between A point and B point, d
2for the arc length between the upper B point of scraping blade active line (161) and C point, d
3for between the upper B point of scraping blade active line (161) and D point arc length, described windscreen wiper plane is the plane at scraping blade active line (161) place.
4. the detection method of the fitness of glass according to claim 1 and windscreen wiper, is characterized in that: in index detects, the setting range of the described angle of attack is ± 9 degree.
5. the detection method of the fitness of glass according to claim 1 and windscreen wiper, is characterized in that: the supplemental characteristic described in step 3 also comprises linear angle of attack gradient, angle property angle of attack gradient, radius-of-curvature and curvature gradient; Described linear angle of attack gradient is the ratio of the arc length of the glass active line between the angle of attack variation of adjacent 2 and these 2 on glass active line; Described angle property angle of attack gradient be on adjacent glass active line with interior end points separately between the arc length angle of attack of 2 and the angle of these two adjacent glass active line place planes that equate between ratio; Described radius-of-curvature is the radius-of-curvature of upper certain point of glass active line; Described curvature gradient is the ratio of the arc length of the glass active line between the variation of radius-of-curvature of adjacent 2 and these 2 on glass active line.
6. the detection method of the fitness of glass according to claim 5 and windscreen wiper, it is characterized in that: in index detects, the setting range of described linear angle of attack gradient is ± 0.04 degree/millimeter, the setting range of described angle property angle of attack gradient is ± 0.5 degree/degree, the setting range of described radius-of-curvature is 1500 millimeters to 15000 millimeters, and the setting range of described curvature gradient is ± 27 millimeters/millimeter.
7. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: the method that solves the angle of attack in step 3 is: take up an official post and get 1 P at described glass active line, obtain respectively the vertical plane of the second rotating shaft (12) and cross P point and the normal perpendicular to the outside surface of glass (20), the angle of finally obtaining between described vertical plane and described normal is the angle of attack.
8. the detection method of the fitness of glass according to claim 5 and windscreen wiper, it is characterized in that: the method for solving of described linear angle of attack gradient is: glass active line take up an official post get 1 P and and P point between arc length be L1 and near a bit of the interior end points of P point place active line, obtain this angle of attack of 2 and be respectively a1 and a2, angle of attack gradient=(a1-a2)/L1 that P is ordered; The method for solving of described angle property angle of attack gradient is: on two adjacent glass active lines, get 2 points that the arc length between interior end points separately equates, the angle of described adjacent two glass active line place planes is a4, obtain this angle of attack of 2 and be respectively a2 and a3, that wherein the angle of attack is a2 is some P point, angle property angle of attack gradient=(a3-a2)/a4 that P is ordered; The method for solving of described radius-of-curvature is: described glass active line take up an official post get 1 P and and P point between other 2 points that equate of arc length, the radius of a circle of these 3 compositions is the radius-of-curvature that P is ordered; The method for solving of described curvature gradient is: glass active line take up an official post get 1 P and and P point between arc length be L2 and near a bit of the interior end points of P point place active line, obtain this radius-of-curvature of 2 and be respectively r5 and r6, curvature gradient=(r6-r5)/L2 that P is ordered.
9. the detection method of the fitness of glass according to claim 1 and windscreen wiper, it is characterized in that: in described step 4, if described supplemental characteristic exceeds setting range, add up described supplemental characteristic and exceed the region of setting range as the defect area of glass (20).
10. the detection method of the fitness of glass according to claim 1 and windscreen wiper, is characterized in that: the data of the Computer Design of the geometric data described in step 1 are replaced the data that use reverse-engineering to gather.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272468A (en) * | 2018-09-28 | 2019-01-25 | 上汽大众汽车有限公司 | A kind of curved surface capacity checking device and curved surface check method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109323678B (en) * | 2018-09-28 | 2020-07-31 | 上汽大众汽车有限公司 | Checking device and checking method |
| CN110044305B (en) * | 2019-04-03 | 2024-02-02 | 信义汽车玻璃(深圳)有限公司 | Glass curvature detection device and glass curvature detection method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0893319A2 (en) * | 1997-07-22 | 1999-01-27 | Nippon Sheet Glass Co. Ltd. | Wiper control apparatus |
| CN201392191Y (en) * | 2009-04-20 | 2010-01-27 | 吴永芝 | Wiping brush angle detecting device of automotive vehicle windscreen wiper |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100357573B1 (en) * | 2000-06-08 | 2002-10-19 | 현대자동차주식회사 | Method for measuring the lift amount of a wiper |
-
2012
- 2012-12-17 CN CN201210546134.4A patent/CN102967276B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0893319A2 (en) * | 1997-07-22 | 1999-01-27 | Nippon Sheet Glass Co. Ltd. | Wiper control apparatus |
| CN201392191Y (en) * | 2009-04-20 | 2010-01-27 | 吴永芝 | Wiping brush angle detecting device of automotive vehicle windscreen wiper |
Non-Patent Citations (2)
| Title |
|---|
| 周磊.电机摆角检测浅谈.《电动工具》.2004,(第3期), * |
| 电机摆角检测浅谈;周磊;《电动工具》;20040930(第3期);13-14页 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109272468A (en) * | 2018-09-28 | 2019-01-25 | 上汽大众汽车有限公司 | A kind of curved surface capacity checking device and curved surface check method |
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