CN101614534B - Installation structure with function of compound measurement for multiple sensors - Google Patents
Installation structure with function of compound measurement for multiple sensors Download PDFInfo
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- CN101614534B CN101614534B CN2009101043821A CN200910104382A CN101614534B CN 101614534 B CN101614534 B CN 101614534B CN 2009101043821 A CN2009101043821 A CN 2009101043821A CN 200910104382 A CN200910104382 A CN 200910104382A CN 101614534 B CN101614534 B CN 101614534B
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- laser displacement
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Abstract
The invention provides an installation structure with the function of compound measurement for multiple sensors. A contact measuring head is arranged on the end part of a movable Z shaft, a supporting plate is fixed on the movable Z shaft by a connecting beam, and the plane in which the supporting plate is positioned is parallel with the moving direction of the movable Z shaft; industrial CCD and a one-dimensional translation stage are fixed on the supporting plate, and a laser displacement sensor can slide on the one-dimensional translation stage; and the main axial line of the laser displacement sensor, the sliding direction of the laser displacement sensor on the one-dimensional translation stage and the moving direction of the movable Z shaft are parallel with one another. The invention has the technical advantage of providing a three-coordinate measuring machine which can truly realize compound measurement, and the invention has the advantages of simple structure, easy improvement on the existing equipment, low cost and wide range of application.
Description
Technical field
The present invention relates to a kind of accessory size three-dimensional measurement technology, relate in particular to a kind of mounting structure of realizing the multiple sensors of duplex measurement.
Background technology
In the prior art, use in more extensive, the ripe three-dimension measuring system (is representative with the three coordinate measuring machine), great majority all are with a kind of measurement that realizes part as measurement means in contact measuring head, industrial CCD or the laser displacement sensor.Because measure the complicacy of part, this single metering system often can not disposablely be finished the measurement to part, need be between several measuring equipments mobile part, cause the measuring process complexity, human factor is bigger to the influence of measuring accuracy.Some has the three coordinate measuring machine of binary duplex measurement function, as contact and radiographic measurement, its mounting means adopts contact measuring head is installed on the mobile Z axle, the image machine then is installed on the moving sets, and this moving sets is installed on the crossbeam, and parallel with the Z axle, this kind structure has increased dirigibility, but for guaranteeing the whole precision of measuring, need to make and the suitable guide rail of mobile Z axle precision, improved difficulty and the cost made greatly.Abroad, the MarVision MS of Ma Er company, OMS, the compound three coordinate machine of PMC series adopts three kinds of sensors all is installed in mode on the Z axle head, this kind structure is to the size of sensor, relatively stricter (the sensor on this machine of specification limits, mostly be the special-purpose specification sensor that manufacturer develops voluntarily, the price that only is Sensor section is just extremely expensive), generally at be the less sensor of profile, versatility is low, and its working method adopts: during working sensor in three sensors, all the other two sensors are awaited orders, can't realize the translocation that links simultaneously of three kinds of sensors, promptly be not " compound " truly.
Summary of the invention
The present invention proposes a kind of mounting structure of realizing the multiple sensors of duplex measurement, its technical scheme is: it comprises mobile Z axle, contact measuring head, industrial CCD and laser displacement sensor; Contact measuring head is arranged on the end of mobile Z axle, is fixed with back up pad by tie-beam on the mobile Z axle, and plane, back up pad place is parallel with mobile Z axle moving direction; Industrial CCD is fixed on the back up pad, and laser displacement sensor is connected with back up pad by the one dimension translation stage.The one dimension translation stage is fixed on the back up pad, and laser displacement sensor can slide on the one dimension translation stage; The main axis of laser displacement sensor, the laser displacement sensor glide direction on the one dimension translation stage, the moving direction of mobile Z axle, the three is parallel.
The main axis of industrial CCD is parallel with the moving direction of mobile Z axle.
Industrial CCD and laser displacement sensor are arranged on the homonymy of back up pad.
Back up pad, laser displacement sensor and industrial CCD are positioned at the top of contact measuring head.
Useful technique effect of the present invention is: a kind of multiple sensors mounting structure that can realize truly that " compound " measures is provided, simple in structure, practicality and highly versatile, also very easily existing three coordinate measuring machine is carried out transformation and upgrade, provide cost savings greatly, this structure had both made three kinds of metering systems can both utilize the guiding accuracy of Z axle, guaranteed the degree of accuracy of measurement, can not take place again to measure to interfere.
Description of drawings
Fig. 1, structural representation of the present invention;
Fig. 2, one dimension translation stage and back up pad annexation sectional view;
Fig. 3, back up pad, tie-beam, mobile Z axle annexation sectional view;
Fig. 4, one dimension translation stage and back up pad annexation vertical view;
Fig. 5, contact measuring head is by the interference region synoptic diagram;
Among the figure: mobile Z axle 1, tie-beam 2, laser displacement sensor 3, contact measuring head 4, industrial CCD 5, one dimension translation stage 6, back up pad 7.
Embodiment
Structure of the present invention has following significant characteristic:
(1) three kinds of measurement means is integrated, for realizing that duplex measurement provides the support on the hardware;
(2) the compound three coordinate machine gauge head of Ma Er company, what adopt is special non-contacting sensor, it has been attached to laser sensor in the image, compare its structure, this structure versatility, dirigibility are stronger, be suitable for the installation of the image and the laser sensor of difformity pattern, make type selecting that more selection be arranged sensor.
(3) simple and practical, cost is low, has made full use of the guiding accuracy of Z axle, does not need extra high precision movement pair, just can guarantee the precision of measuring process;
(4) adaptability is strong, measurement range big (along Z to), the one dimension laser transfer table of increase has made things convenient for the adjustment of the laser sensor of definite measured scope, for the contour structures complicated parts realizes that duplex measurement provides assurance;
(5) can neatly existing high accuracy three coordinate measuring machine hardware modification be upgraded with lower cost, and mix the Survey Software of independent development, become the combined type three coordinate measuring machine.
Referring to Fig. 1 to 4, concrete improvement of the present invention is: fix a tie-beam 2 on the mobile Z axle 1 of existing three coordinate measuring machine, fix a back up pad 7 in tie-beam 2 outer ends again, homonymy is equipped with industrial CCD 5 and one dimension translation stage 6 on the back up pad 7, and one dimension translation stage 6 is provided with a laser displacement sensor 3.
Plane, back up pad 7 place is parallel with mobile Z axle 1 moving direction; The main axis of industrial CCD 5 is parallel with the moving direction of mobile Z axle 1; Laser displacement sensor 3 can slide on one dimension translation stage 6; The main axis of laser displacement sensor 3, laser displacement sensor 3 glide direction on one dimension translation stage 6, the moving direction of mobile Z axle 1, the three is parallel; Back up pad 7, laser displacement sensor 3 and industrial CCD 5 are positioned at the top of contact measuring head 4.
The physical dimension of general-purpose industrial CCD5 and laser displacement sensor 3 is all bigger, and the size of the mobile Z axle 1 of traditional three coordinate measuring machine is fixed, being difficult to that large-sized sensor all is integrated into mobile Z axle 1 (will all concentrate on sensor on the mobile Z axle 1, size sensor and/or mobile Z axle 1 size certainly will will be changed, its cost also just is as good as with expensive three coordinate measuring machine of the prior art), because mobile Z axle 1 has very high guiding accuracy, in order not increase the cost of additional designs high precision guide rail, can guarantee the mobile accuracy of image and laser again, so industrial CCD 5 is linked to each other with mobile Z axle 1 by a tie-beam 2 with laser displacement sensor 3, both utilized the high precision of the mobile Z axle 1 of existing three coordinate measuring machine to guarantee, provided cost savings greatly again.
The mutual alignment relation of three kinds of sensors is thin T font, this distribution has constitutionally stable characteristics on the one hand, guarantee correctness (because main axis, the main axis of laser displacement sensor 3, the glide direction of laser displacement sensor 3 on one dimension translation stage 6, the moving direction of mobile Z axle 1 of industrial CCD 5 of sensor location coordinates conversion in the duplex measurement data handling procedure, four is parallel, simplified the operand when coordinate is handled greatly); Contact measuring head 4 can be measured in hemispherical 168 positions that with gauge head length are radius on the other hand, industrial CCD 5 and laser displacement sensor 3 is abutted against together as far as possible, to reduce the space (referring to Fig. 5) that contact measuring head 4 is interfered.
Because the measurement range of laser displacement sensor 3 is limited, in order to expand this structure to the adaptability under the various complex parts situations, on CCD and laser sensor back up pad, installed an one dimension translation stage 6 additional, be used for laser displacement sensor 3 Z to running fix, with the effective range of expansion of laser light displacement transducer 3; Another effect of one dimension translation stage 6 is: when measuring, can make laser displacement sensor 3 and contact measuring head 4 interlocks (general industry CCD5 does not need to move), synchro measure accessory size.
For fear of in measuring moving process, because the not intellectual of measuring object height, take place and the wherein collision of certain sensor, (in fact industrial CCD 5 and laser displacement sensor 3 be installed on the same surface level, the requirement of " same surface level " is only limited at the beginning of the measurement, carrying out along with measuring process, can progressively know the profile of part, information such as size, under the situation that guarantees collisionless danger, laser displacement sensor 3 can slide into below " surface level " by one dimension translation stage 6, even move to the below of contact measuring head 4), and be in the top of contact measuring head 4; When changing long chaining pin or add extension rod (because needs of measuring), software systems (can manually be adjusted the alert adjustment, also can adjust automatically by system software) position of one dimension translation stage 6 and laser displacement sensor 3, laser displacement sensor 3 is come back in the measurement range.
This Open architecture (no shell) design, adaptability to size sensor has been accomplished maximization, maintenance, easy for installation, (the three coordinate measuring machine price is hundreds of thousands at least also very easily existing three coordinate measuring machine to be carried out transformation and upgrade, up to a million at most), provide cost savings greatly, very tally with the national condition.
Claims (3)
1. the mounting structure that can realize the multiple sensors of duplex measurement, it is characterized in that: it comprises: mobile Z axle (1), contact measuring head (4), industrial CCD (5) and laser displacement sensor (3); Contact measuring head (4) is arranged on the end of mobile Z axle (1), and mobile Z axle (1) is gone up and is fixed with back up pad (7) by tie-beam (2), and back up pad (7) plane, place is parallel with mobile Z axle (1) moving direction; Industrial CCD (5) is fixed on the back up pad (7), and laser displacement sensor (3) is connected with back up pad (7) by one dimension translation stage (6); One dimension translation stage (6) is fixed on the back up pad (7), and laser displacement sensor (3) can be gone up at one dimension translation stage (6) and slide; The main axis of laser displacement sensor (3), laser displacement sensor (3) glide direction on one dimension translation stage (6), the moving direction of mobile Z axle (1), the three is parallel; The main axis of industrial CCD (5) is parallel with the moving direction of mobile Z axle (1).
2. the mounting structure of realizing the multiple sensors of duplex measurement according to claim 1 is characterized in that: industrial CCD (5) and laser displacement sensor (3) are arranged on the homonymy of back up pad (7).
3. the mounting structure of realizing the multiple sensors of duplex measurement according to claim 1 is characterized in that: back up pad (7), laser displacement sensor (3) and industrial CCD (5) are positioned at the top of contact measuring head (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101043821A CN101614534B (en) | 2009-07-20 | 2009-07-20 | Installation structure with function of compound measurement for multiple sensors |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101043821A CN101614534B (en) | 2009-07-20 | 2009-07-20 | Installation structure with function of compound measurement for multiple sensors |
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| CN101614534A CN101614534A (en) | 2009-12-30 |
| CN101614534B true CN101614534B (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101043821A Expired - Fee Related CN101614534B (en) | 2009-07-20 | 2009-07-20 | Installation structure with function of compound measurement for multiple sensors |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782379B (en) * | 2009-12-29 | 2013-02-06 | 重庆大学 | Three-dimensional combined measurement method |
| CN102192705B (en) * | 2010-03-08 | 2013-11-13 | 刘纳平 | Non-contact type compound scanning measuring system |
| CN102564337A (en) * | 2010-12-31 | 2012-07-11 | 鸿富锦精密工业（深圳）有限公司 | Image-measuring machine |
| CN102645194A (en) * | 2012-04-13 | 2012-08-22 | 苏州怡信光电科技有限公司 | Coordinate measuring machine with image processing system |
| CN108168427A (en) * | 2017-11-29 | 2018-06-15 | 首都航天机械公司 | A kind of combined type measuring method of big radius-thickness ratio product morpheme size |
| CN109238092A (en) * | 2018-09-14 | 2019-01-18 | 佛山市恒力泰机械有限公司 | Ceramic adobe thickness online automatic detection method and device |
| CN112461177B (en) * | 2020-11-11 | 2023-02-03 | 中国航空工业集团公司北京航空精密机械研究所 | On-machine calibration method for point laser measuring head |
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