CN202757587U - Space dimension measuring apparatus based on multi-CCD - Google Patents
Space dimension measuring apparatus based on multi-CCD Download PDFInfo
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- CN202757587U CN202757587U CN201220433158.4U CN201220433158U CN202757587U CN 202757587 U CN202757587 U CN 202757587U CN 201220433158 U CN201220433158 U CN 201220433158U CN 202757587 U CN202757587 U CN 202757587U
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Abstract
Disclosed is a space dimension measuring apparatus based on multi-CCD, comprising a frame, wherein the frame is provided with a first camera bracing frame, a second camera bracing frame, a to-be-measured-workpiece positioning seat which is located between the first camera bracing frame and the second camera bracing frame and provided with multiple mark points, and a cylinder that drives the to-be-measured-workpiece positioning seat to move horizontally upon the frame; the first camera bracing frame is provided with a CCD industrial camera I which is vertically arranged and capable of moving horizontally in the X, Y, and Z directions; the second camera bracing frame is provided with a CCD industrial camera II and a CCD industrial camera III which are vertically arranged and capable of horizontally moving in the X, Y, and Z directions; the CCD industrial camera I, the CCD industrial camera II, the CCD industrial camera III, and the cylinder are all electrically connected with a PLC; and the to-be-measured-workpiece positioning seat is further provided with a prism. The space dimension measuring apparatus of the utility model features low cost and fast measuring speed, with the measuring precision as good as a coordinate measuring machine.
Description
Technical field
The utility model relates to a kind of measurement mechanism, especially a kind of bulk measurement mechanism based on many CCD.
Background technology
The CCD industrial camera generally is used for the measurement of two-dimensional, still, sometimes must need the measurement space size to provide the basis for techniques such as assemblings.Existing a workpiece for measurement 20 as depicted in figs. 1 and 2, the axis that it has the circular hole 21(circular hole of the frame 22 of two levels and two levels is horizontal direction), according to production requirement, now need to measure the length of these two horizontal circular hole 21 distances two frames 22 centre line L.Because frame centre line L and circular hole 21 are not on the same two-dimensional surface, relate to the measurement of bulk, traditional method is to cooperate clamp tool, prism to finish by contactless three coordinate measuring machine, the bothersome effort of this method, and automaticity is low.
Summary of the invention
The utility model purpose is: for the problems referred to above, provide a kind of bulk measurement mechanism based on many CCD, this installation cost is lower, measuring speed is fast, and has the measuring accuracy same with three coordinate measuring machine.
The technical solution of the utility model is: a kind of bulk measurement mechanism based on many CCD, comprise frame, be provided with the first camera tripod on the described frame, the second camera tripod, between described the first camera tripod and the second camera tripod and on it with the workpiece for measurement positioning seat of a plurality of gauge points, and the cylinder that is used for driving the translation on frame of described workpiece for measurement positioning seat, be equipped with vertically arranged on described the first camera tripod, and can be at X, Y, three directions of Z are made the CCD industrial camera I of translation motion, be equipped with vertically arranged on described the second camera tripod, and can be at X, Y, three directions of Z are made CCD industrial camera II and the CCD industrial camera III of translation motion, described CCD industrial camera I, CCD industrial camera II, CCD industrial camera III and cylinder all are electrically connected with a PLC program controller, also are provided with the prism that two horizontal circular holes on the workpiece for measurement is refracted to vertical direction on the described workpiece for measurement positioning seat.
Offer the frame light hole on the described workpiece for measurement positioning seat.
On the described workpiece for measurement positioning seat back light is housed.
Described workpiece for measurement positioning seat is provided with for the vacuum adsorption mechanism that workpiece for measurement tightly is adsorbed on this workpiece for measurement positioning seat.
The utility model has the advantages that: the utility model is added the data fusion method of many CCD by the optical effect of three CCD industrial cameras and prism, has solved the problem of bulk precision measurement, and its integrated measurement accuracy is in ± 0.03 millimeter.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described:
Fig. 1 is the structural representation of workpiece for measurement, and in order to clearly illustrate that technical problem to be solved in the utility model, special front view and vertical view with workpiece for measurement is drawn in together;
Fig. 2 is the structural representation of the utility model embodiment;
Fig. 3 is the structural representation of workpiece for measurement positioning seat among the utility model embodiment;
Fig. 4 is that coordinate is unified transfer principle figure among the utility model embodiment.
Wherein: 1-CCD industrial camera I, 2-CCD industrial camera II, 3-CCD industrial camera III, 4-workpiece for measurement positioning seat, 5-prism, 6-gauge point, 7-frame light hole, 8-back light, 9-cylinder, the 10-frame, 11-the first camera tripod, 12-the second camera tripod, 20-workpiece for measurement, the 21-circular hole, the 22-frame.
Embodiment
As shown in Figures 2 and 3, present embodiment is based on the bulk measurement mechanism of many CCD, comprise frame 10, be provided with on this frame 10: the first camera tripod 11, the second camera tripod 12, the workpiece for measurement positioning seat 4 between described the first camera tripod and the second camera tripod and the cylinder 9 that is used for driving the translation on frame of described workpiece for measurement positioning seat, shown on the workpiece for measurement positioning seat 4 with a plurality of gauge point 6(as shown in Figure 4, present embodiment is provided with A1, A2 altogether at the workpiece for measurement positioning seat ... D3, D4 be totally 16 gauge points).Vertically arranged CCD industrial camera I 1 is installed on described the first camera tripod 11, and this CCD industrial camera I can all can be done translation motion in X, Y, three directions of Z.Vertically arranged CCD industrial camera II 2 and CCD industrial camera III 3 are installed on described the second camera tripod 12, and CCD industrial camera II 2 and CCD industrial camera III 3 also can be done translation motion in X, Y, three directions of Z.Described CCD industrial camera I 1, CCD industrial camera II 2, CCD industrial camera III 3 and cylinder 9 all are electrically connected with a PLC program controller, also be provided with prism 5 on the described workpiece for measurement positioning seat 4, prism 5 is used for circular hole 21 is refracted to vertical direction (that is: the circular hole end face of observing from the prism top is level) from horizontal direction, thereby image and the frame 22 of two circular holes of camera bat are in the same level face, are convenient to image and process.
This example offers frame light hole 7 at described workpiece for measurement positioning seat 4, and this frame light hole 7 obtains image so that light source can project on the frame 22 of workpiece for measurement 20 through it so that CCD takes pictures.
The back light 8 corresponding with above-mentioned three industrial cameras is housed on the described workpiece for measurement positioning seat 4.
For workpiece for measurement 20 can steadily be positioned on the workpiece for measurement positioning seat 4, this example also is provided with vacuum adsorption mechanism at described workpiece for measurement positioning seat 4.
The using method of present embodiment is as follows:
Workpiece for measurement 20 is placed on the workpiece for measurement positioning seat 4, opens vacuum adsorption mechanism workpiece for measurement is adsorbed on workpiece for measurement positioning seat 4 patrixes.Three CCD industrial cameras of PLC controller control are taken pictures, and wherein 1 pair of two circular hole 21 of CCD industrial camera I are taken pictures, and CCD industrial camera II 2 and CCD industrial camera III 3 are taken pictures to one section of frame 22 respectively, and preserve the data after required image is processed.Then PLC controller control cylinder 9 drives 4 actions of workpiece for measurement positioning seat, another section of frame 22 moved in the visual field of CCD industrial camera II 2 and CCD industrial camera III 3, the PLC controller is again controlled three CCD industrial cameras and is taken pictures, wherein 1 pair of two circular hole 21 of CCD industrial camera I are taken pictures, CCD industrial camera II 2 and CCD industrial camera III 3 are taken pictures to this section frame 22 in the visual field respectively, and preserve data after required image is processed, the data after then the two groups of images in front and back being processed carry out just can drawing two circular holes 21 apart from the distance of frame centre line L after data are processed.PLC controller control cylinder is got back to the origin-location, and removes the vacuum suction of workpiece for measurement.
The method that present embodiment carries out data fusion to individual view data comprises following step:
Step 1: workpiece for measurement places on the workpiece for measurement positioning seat 4, certain unique point in the CCD industrial camera I visual field on the workpiece for measurement positioning seat is as coordinate origin O, two mutually perpendicular sidelines take this coordinate origin as intersection point are the x axle, y axle (as shown in Figure 4), find four gauge point (gauge point A1 in two other CCD industrial camera visual field, B2, A3, B4) physical coordinates (A1x in coordinate system Oxy, A1y), (B2x, B2y), (B3x, B3y), (A4x, A4y), the physical coordinates of these gauge points can be on three coordinate measuring machine Measurement accuracy, then can carry out step 2.
Step 2: in CCD industrial camera II 2 and CCD industrial camera III 3, measure the pixel distance of two gauge points of x direction in each visual field and the pixel distance of two gauge points of y direction, pixel distance between two circular holes 21 in the CCD industrial camera I visual field, be used for calibrating the proportionate relationship between the pixel coordinate and physical coordinates in each CCD industrial camera visual field, and convert the system of the pixel coordinate in each CCD industrial camera visual field to physical coordinates system.
Step 3: by measuring gauge point A1, the B2 pixel coordinate in CCD industrial camera I and CCD industrial camera II 2 on the workpiece for measurement positioning seat 4, after being converted into physical coordinates, obtain (dA1x, dA1y), (dB2x, dB2y), and the pixel coordinate of Oxy in CCD industrial camera I also be converted to physical coordinates, obtain (dOx, dOy), then, determine relation between each coordinate origin and the system coordinate system initial point Oxy
O3x=?A1x-dA1x；O3y=?A1y+dA1y；
O2x=?B2x-dB2x；O2y=?B2y+dB2y；
O1x=?-dOx；O1y=?dOy。
When step 4:CCD industrial camera I, CCD industrial camera II 2, CCD industrial camera III 3 taken pictures for the first time simultaneously, the center of two circular holes 21 of CCD industrial camera I crawl, CCD industrial camera II 2 and CCD industrial camera III 3 can grasp the line segment of two frame one sides of workpiece for measurement, carry out image and process and data storage processing; When CCD industrial camera I, CCD industrial camera II 2, CCD industrial camera III 3 taken pictures for the second time simultaneously, the line segment of two other sides of frame of CCD industrial camera II 2, CCD industrial camera III 3 crawl workpieces for measurement carried out that image is processed and data are stored; After the data processing through step 3, can access the physical coordinates of mean value in unified coordinate system Oxy of two line segments of difference on two frames.
Step 5: if wherein the physical coordinates of two of a frame sections line segment mean values in unified coordinate system Oxy is respectively: kL1(x, y), kL2(x, y), two of an other frame sections line segment mean values are respectively: kR1(x, y), kR2(x, y), the coordinate of the centre line L that is then determined by frame is Q1((kL1x, + kR1x)/2, (kL1y ,+kR1y)/2), Q2((kL2x, + kR2x)/2, (kL2y ,+kR2y)/2).
Step 6: in CCD industrial camera I, detect two circular hole 21 centers, and be transformed in the physical coordinates among the unified coordinate system Oxy, obtain physical coordinates C-L-K(x, the y at circular hole to be detected 21 centers) and C-R-K(x, y).
Step 7: by the point to the distance function between the straight line, can obtain center of circular hole C-L-K(x, y to be detected) or C-R-K(x, y) to the distance between the centre line L.
Certainly, above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow people can understand content of the present utility model and implements according to this, can not limit protection domain of the present utility model with this.All equivalent transformation or modifications of doing according to the Spirit Essence of the utility model main technical schemes all should be encompassed within the protection domain of the present utility model.
Claims (4)
1. bulk measurement mechanism based on many CCD, comprise frame (10), it is characterized in that: be provided with the first camera tripod (11) on the described frame (10), the second camera tripod (12), between described the first camera tripod and the second camera tripod and on it with the workpiece for measurement positioning seat (4) of a plurality of gauge points (6), and the cylinder (9) that is used for driving the translation on frame of described workpiece for measurement positioning seat, be equipped with vertically arranged on described the first camera tripod (11), and can be at X, Y, three directions of Z are made the CCD industrial camera I (1) of translation motion, be equipped with vertically arranged on described the second camera tripod (12), and can be at X, Y, three directions of Z are made CCD industrial camera II (2) and the CCD industrial camera III (3) of translation motion, described CCD industrial camera I (1), CCD industrial camera II (2), CCD industrial camera III (3) and cylinder (9) all are electrically connected with a PLC program controller, also are provided with the prism (5) that two the horizontal circular holes (21) on the workpiece for measurement (20) is refracted to vertical direction on the described workpiece for measurement positioning seat (4).
2. the bulk measurement mechanism based on many CCD according to claim 1 is characterized in that: offer frame light hole (7) on the described workpiece for measurement positioning seat (4).
3. the bulk measurement mechanism based on many CCD according to claim 2 is characterized in that: back light (8) is housed on the described workpiece for measurement positioning seat (4).
4. the bulk measurement mechanism based on many CCD according to claim 3, it is characterized in that: described workpiece for measurement positioning seat (4) is provided with for the vacuum adsorption mechanism that workpiece for measurement (20) tightly is adsorbed on this workpiece for measurement positioning seat.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220433158.4U CN202757587U (en) | 2012-08-29 | 2012-08-29 | Space dimension measuring apparatus based on multi-CCD |
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| CN201220433158.4U CN202757587U (en) | 2012-08-29 | 2012-08-29 | Space dimension measuring apparatus based on multi-CCD |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103512497A (en) * | 2013-09-30 | 2014-01-15 | 爱彼思（苏州）自动化科技有限公司 | Inclined hole detecting device |
| CN103925877A (en) * | 2014-04-03 | 2014-07-16 | 东莞市天勤仪器有限公司 | Multi-lens size quick measuring equipment |
| CN105115433A (en) * | 2015-08-10 | 2015-12-02 | 苏州听毅华自动化设备有限公司 | Workpiece automation detection device |
| CN104437996B (en) * | 2013-09-22 | 2017-02-08 | 昆山杰士德精密工业有限公司 | Needle aligning mechanism |
| CN106979759A (en) * | 2017-04-16 | 2017-07-25 | 合肥芯碁微电子装备有限公司 | A kind of measurement apparatus and its measuring method of half tone plate-making silk screen angle |
| CN109654995A (en) * | 2019-01-15 | 2019-04-19 | 征图新视（江苏）科技有限公司 | A kind of three-in-one imaging mechanism |
| CN109883322A (en) * | 2019-01-16 | 2019-06-14 | 武汉纺织大学 | A kind of repacking instrument image capturing system and its image-pickup method |
| CN110146020A (en) * | 2019-06-17 | 2019-08-20 | 哈尔滨理工大学 | Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions |
| CN110181536A (en) * | 2019-06-28 | 2019-08-30 | 华中科技大学无锡研究院 | System for high-speed rail Location vehicle |
-
2012
- 2012-08-29 CN CN201220433158.4U patent/CN202757587U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104437996B (en) * | 2013-09-22 | 2017-02-08 | 昆山杰士德精密工业有限公司 | Needle aligning mechanism |
| CN103512497A (en) * | 2013-09-30 | 2014-01-15 | 爱彼思（苏州）自动化科技有限公司 | Inclined hole detecting device |
| CN103925877A (en) * | 2014-04-03 | 2014-07-16 | 东莞市天勤仪器有限公司 | Multi-lens size quick measuring equipment |
| CN105115433A (en) * | 2015-08-10 | 2015-12-02 | 苏州听毅华自动化设备有限公司 | Workpiece automation detection device |
| CN106979759A (en) * | 2017-04-16 | 2017-07-25 | 合肥芯碁微电子装备有限公司 | A kind of measurement apparatus and its measuring method of half tone plate-making silk screen angle |
| CN109654995A (en) * | 2019-01-15 | 2019-04-19 | 征图新视（江苏）科技有限公司 | A kind of three-in-one imaging mechanism |
| CN109883322A (en) * | 2019-01-16 | 2019-06-14 | 武汉纺织大学 | A kind of repacking instrument image capturing system and its image-pickup method |
| CN110146020A (en) * | 2019-06-17 | 2019-08-20 | 哈尔滨理工大学 | Device based on three-coordinates measuring machine and CCD high efficiency measurement cylinder dimensions |
| CN110181536A (en) * | 2019-06-28 | 2019-08-30 | 华中科技大学无锡研究院 | System for high-speed rail Location vehicle |
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Address after: 215123 room D205-D208, No. 99, Ai Road, Suzhou Industrial Park, Jiangsu Patentee after: SUZHOU YIMEIDE TECHNOLOGY Co.,Ltd. Address before: 215123 room D205-D208, No. 99, Ai Road, Suzhou Industrial Park, Jiangsu Patentee before: SUZHOU YIMEIDE AUTOMATION TECHNOLOGY CO.,LTD. |
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Address after: Suzhou Industrial Park Suzhou city Jiangsu province 215000 double property 15 miles Patentee after: Yimei Technology Co.,Ltd. Address before: 215123 D205-D208 room, No. 99 kindheartedness Road, Suzhou Industrial Park, Jiangsu, China Patentee before: SUZHOU YIMEIDE TECHNOLOGY Co.,Ltd. |
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Granted publication date: 20130227 |
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