CN103940380A - Planeness test method and device - Google Patents
Planeness test method and device Download PDFInfo
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- CN103940380A CN103940380A CN201410137894.9A CN201410137894A CN103940380A CN 103940380 A CN103940380 A CN 103940380A CN 201410137894 A CN201410137894 A CN 201410137894A CN 103940380 A CN103940380 A CN 103940380A
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Abstract
The invention discloses a planeness test method and device. The method includes the steps that (S1) height information of the surface of a product to be tested is obtained; (2) the obtained information is analyzed to obtain coordinate values of X, Y and Z; (3) data sampling is carried out, N*N points of adjacent areas on the surface of the product are combined into one point, and the value of the point is the average value of the corresponding area; (4) plane fitting is carried out, coefficients a, b and c are obtained through calculation in a least square method, and accordingly the plane where the surface of the product to be tested is located is obtained; (S5) the points distributed on the plane of the product are divided into two types, one type of the points are located on the upper side of the surface of the product, the other type of the points are located on the lower side of the surface of the product, the largest distance value between the upper side and the lower side of the surface of the product is obtained, and the value is planeness of the product. Precision of planeness obtained in the method is high, and testing efficiency is high.
Description
Technical field
?the present invention relates to flatness method of testing and the proving installation of a kind of flatness method of testing and device thereof, particularly battery core product.
Background technology
along with the development of technology, high-end mobile phone, panel computer manufacturer require more and more higher to the flatness of battery core product.Flatness exceeds the unacceptable product that is considered as of 0.2mm.To the measurement of planeness of battery core product and flat panel products, traditional operation tool is generally three and sits measuring instrument, three sit measuring instrument need to spend the longer time in the time of the flatness of measurement products, data test is carried out in each corresponding working point of product need to being taken respectively when concrete operations, automaticity is low, cause measuring efficiency comparatively low, operation is simultaneously also cumbersome, can not meet the requirement of battery core manufacturer.
Summary of the invention
It is high that the technical problem to be solved in the present invention is to provide a kind of measuring accuracy, flatness method of testing and device thereof that work efficiency is high.
In order to solve the problems of the technologies described above, one aspect of the present invention provides a kind of flatness method of testing,
S1, obtains the elevation information between product upper surface to be measured and product holder box surface;
S2, resolves the elevation information acquiring, and obtains X, Y, the Z coordinate of product upper surface each point to be measured, obtain product upper surface data acquisition be a little V={ x
i, y
i, z
i}
;
S3, plane fitting, according to plane equation z=ax+by+c, in conjunction with the data of above-mentioned acquisition, calculates coefficient a, b and c by least square method, thereby obtains the plane at product surface to be measured place;
S4, Calculation Plane degree value, all spot projections of the product upper surface to be measured acquiring are upper to fit Plane z=ax+by+c, calculate the distance of each point to plane;
S5, if point arrives the distance z i=axi+byi+c of plane, this point is positioned in plane; If point is to the distance z i>axi+byi+c of plane, this point is positioned at plane upper side; If point is to the distance z i<axi+byi+c of plane, this point is positioned at planar underside, adds up respectively plane upper side and the planar underside each point maximal value to the distance of plane, and two maximal value sums are the Planeness value of product to be measured.
Described method also comprises step: after step S2 resolves information, automatically determine the border/edge of product, according to default product edge width, the data point at edge is removed.
Described method also comprises step: remove after the data point of default border width, data are carried out to filtering.
Described method also comprises: data are carried out after filtering, the data that obtain are carried out down-sampled, N*N of product upper surface adjacent area to be measured point merged into a point, the value of this point is got the mean value of the coordinate figure of each point in this region.
Described method also comprises step S6, obtains the 2 D code information of product to be measured, and with the corresponding preservation of Planeness value of product to be measured.
On the other hand, the present invention also provides a kind of flatness proving installation, comprise platform, module frame, swivel adapter head, motor and rotating disk are housed on described platform, rotating disk is sleeved on swivel adapter head, and swivel adapter head is connected with motor-driven, and product holder box is housed on rotating disk, module frame is provided with X-axis module mechanism and Y-axis module mechanism, in X-axis module mechanism, laser sensor is installed.
On described module frame, scanner is installed, this scanned copy is positioned at product holder box top.
On described product holder box, attaching has vacuum tracheae.
Described scanner is Quick Response Code scanner.
Described Y-axis module mechanism comprises the Y-axis module and the line slideway that are installed on module frame, and X-axis module mechanism comprises the X-axis module being installed on Y-axis module and line slideway, and X-axis module is provided with control cylinder and sliding shoe, and laser sensor is contained on this sliding shoe.
On described rotating disk, be provided with at least one product holder box.
The present invention is mainly used in the flatness of the tabular electronic product of measuring battery core product and reduced size, automation mechanized operation, and work efficiency is high, and measuring accuracy is high.
Brief description of the drawings
Accompanying drawing 1 is the perspective view of proving installation in the present invention.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the invention will be further described.
The invention discloses a kind of flatness method of testing, comprise the following steps:
S1, obtains the elevation information between product upper surface to be measured and product holder box surface.In the time product to be measured being rotated on test holder box instrument, refer to that product upper surface to be measured is to the distance of holding in the palm between box instrument upper surface
S2, resolves the elevation information acquiring, and obtains X, Y, the Z coordinate of product upper surface each point to be measured, obtain product upper surface data acquisition be a little V={ x
i, y
i, z
i}
, determine product upper surface to be measured coordinate figure a little.
S3, plane fitting, according to plane equation z=ax+by+c, in conjunction with the data of above-mentioned acquisition, calculates coefficient a, b and c by least square method, thereby obtains the plane at product surface to be measured place.
S4, Calculation Plane degree value, all spot projections of the product upper surface to be measured acquiring are upper to fit Plane z=ax+by+c, calculate the distance of each point to plane.Owing to having calculated coefficient a, b and c according to the data that obtain in step S4, now directly apply mechanically.
S5, if point arrives the distance z i=axi+byi+c of plane, this point is positioned in plane; If point is to the distance z i>axi+byi+c of plane, this point is positioned at plane upper side; If point is to the distance z i<axi+byi+c of plane, this point is positioned at planar underside.Altogether point is divided into two classes, a class falls into plane upper side, and a class falls into planar underside, Calculation Plane upside each point is to interplanar distance, and statistics obtains maximum distance H max1, Calculation Plane downside each point is to interplanar distance, and statistics obtains maximum distance H max2.Get Hmax1, Hmax2 sum, be the flatness of this product to be measured.Obtain after the flatness of this product to be measured, with judgment criteria contrast, can judge that whether the flatness of product of current detection is qualified.
Step S6, obtains the 2 D code information of product to be measured, determines every specifying information of product, and preserves with together with the Planeness value of product to be measured.
After step S2 resolves information, automatically determine the edge/boundary of product, the data point of default border width is removed.Pre-set the border width of product, behind the border of product to be determined, will be from border be considered as invalid data to the data in product center certain width (presetting), get rid of edge certain area.After removing invalid data, again data are carried out to filtering, filtering is in order to eliminate isolated noise spot, these noise spots may be from electronic noise, light disturbance, also may be from the minute dust on battery core surface etc., can be subtracted micro-or be eliminated these disturbing factors by filtering, improving measuring accuracy, filtering can not lowered data volume.Data are carried out after filtering, the data that obtain are carried out down-sampled, N*N of product upper surface adjacent area to be measured point merged into a point, the value of this point is got the mean value of the coordinate figure of each point in this region.Normally carry out zoning according to practical operation experience, product upper surface is divided into W*H region, thereby be formed with W*H dot matrix, reduce the quantity of point, reduce sampling rate, increase work efficiency.
In addition, the present invention has also disclosed a kind of flatness proving installation, comprise platform 1, module frame 12, swivel adapter head 5, motor 14 and rotating disk 2 are housed on described platform 1, and rotating disk 2 is sleeved on swivel adapter head 5, and swivel adapter head 5 is in transmission connection with motor 14, product holder box 3 is housed on rotating disk 2, module frame 12 is provided with X-axis module mechanism and Y-axis module mechanism, in X-axis module mechanism, laser sensor 7 is installed, and obtains for the detection of product to be measured being carried out to information.Scanner 4 is installed on module frame 12, and this scanner 4 is positioned at product holder box 3 tops.Between motor 14 and swivel adapter head 5, be in transmission connection, can connect by belt, or other usual manners connect.Scanner 4 can be installed by support and module frame 12 fixing, and what make that scanner 4 can be firm remains at product holder box top, and scanner 4 is made as the scanner with scanning Quick Response Code function.A product holder box can be set on rotating disk 2 as required, or two product holder boxes, or three product holder boxes, or other quantity.
On product holder box 3, attaching has vacuum tracheae 13, and this vacuum tracheae 13 is upward through rotating disk 2 and is connected connection with product holder box 3 from rotating disk 2 belows, make product holder box have vacuum adsorption force.
In addition, Y-axis module mechanism comprises the Y-axis module 6 and the line slideway 11 that are installed on module frame 12, X-axis module mechanism comprises the X-axis module 10 being installed on Y-axis module 6 and line slideway 11, and X-axis module 10 is provided with control cylinder 8 and sliding shoe 9, and laser sensor 7 is contained on this sliding shoe 9.Sliding shoe 9 can carry out the slip of X-direction on X-axis module 11, and X-axis module 10 carries out the slip of Y direction on Y-axis module 6 and line slideway 11, drives sliding shoe to move.Y-axis module mechanism and X-axis module mechanism, can also be other forms of structure, as long as guarantee to move in X-axis and Y direction, thereby slip and laser sensor slided smoothly.
Vacuum tracheae 13 is connected with source of the gas, so that vacuum gas to be provided, makes product holder box have absorption affinity.When test, product is placed on product holder box, product be subject to product holder box vacuum adsorption force and by adsorbing steadily.Dial rotation, product is along with rotating to scanner below, and scanner carries out 2 D code information scanning to product.Then rotating disk continues to rotate to laser sensor below, laser sensor is driven product holder box top by X-axis module mechanism and Y-axis module mechanism simultaneously, the product information of carrying out to below reads, obtain the elevation information of product surface, after obtaining, laser sensor and scanner send the information obtaining separately to control PC to, thereby analyze the flatness that obtains test product fast, easily.
Claims (10)
1. a flatness method of testing, comprises the following steps:
S1, obtains the elevation information between product upper surface to be measured and product holder box surface;
S2, resolves the elevation information acquiring, and obtains X, Y, the Z coordinate of product upper surface each point to be measured, obtain product upper surface data acquisition be a little V={ x
i, y
i, z
i}
;
S3, plane fitting, according to plane equation z=ax+by+c, in conjunction with the data of above-mentioned acquisition, calculates coefficient a, b and c by least square method, thereby obtains the plane at product surface to be measured place;
S4, Calculation Plane degree value, all spot projections of the product upper surface to be measured acquiring are upper to fit Plane z=ax+by+c, calculate the distance of each point to plane;
S5, if point arrives the distance z i=axi+byi+c of plane, this point is positioned in plane; If point is to the distance z i>axi+byi+c of plane, this point is positioned at plane upper side; If point is to the distance z i<axi+byi+c of plane, this point is positioned at planar underside, then adds up respectively plane upper side and the planar underside each point maximal value to the distance of plane, and two maximal value sums are the Planeness value of product to be measured.
2. flatness method of testing according to claim 1, is characterized in that, described method also comprises step: after step S2 resolves information, automatically determine the border/edge of product, according to default product edge width, the data point at edge is removed.
3. flatness method of testing according to claim 2, is characterized in that, described method also comprises step: remove after the data point of default border width, data are carried out to filtering.
4. flatness method of testing according to claim 3, it is characterized in that, described method also comprises: data are carried out after filtering, carry out down-sampled to the data that obtain, N*N point of product upper surface adjacent area to be measured merged into a point, and the value of this point is got the mean value of the coordinate figure of each point in this region.
5. according to the flatness method of testing described in any one in claim 4, it is characterized in that, described method also comprises step S6, obtains the 2 D code information of product to be measured, and preserves with together with the Planeness value of product to be measured.
6. a flatness proving installation, it is characterized in that, comprise platform (1), module frame (12), swivel adapter head (5), motor (14) and rotating disk (2) are housed on described platform, rotating disk is sleeved on swivel adapter head, and swivel adapter head is connected with motor-driven, and product holder box (3) is housed on rotating disk, module frame is provided with X-axis module mechanism and Y-axis module mechanism, and laser sensor (7) is installed in X-axis module mechanism.
7. flatness tester according to claim 6, is characterized in that, on described product holder box, attaching has vacuum tracheae (13).
8. flatness tester according to claim 7, is characterized in that, scanner (4) is installed on described module frame, and this scanned copy is positioned at product holder box top.
9. flatness tester according to claim 8, is characterized in that, described scanner is Quick Response Code scanner.
10. according to the flatness tester described in any one in claim 6～9, it is characterized in that, described Y-axis module mechanism comprises the Y-axis module (6) and the line slideway (11) that are installed on module frame, X-axis module mechanism comprises the X-axis module (10) being installed on Y-axis module and line slideway, X-axis module is provided with control cylinder (8) and sliding shoe (9), and laser sensor is contained on this sliding shoe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137894.9A CN103940380A (en) | 2014-04-08 | 2014-04-08 | Planeness test method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410137894.9A CN103940380A (en) | 2014-04-08 | 2014-04-08 | Planeness test method and device |
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| CN103940380A true CN103940380A (en) | 2014-07-23 |
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|---|---|---|---|
| CN201410137894.9A Pending CN103940380A (en) | 2014-04-08 | 2014-04-08 | Planeness test method and device |
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Cited By (14)
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| CN104330059A (en) * | 2014-10-22 | 2015-02-04 | 宁波宏协离合器有限公司 | Flatness detection device for automobile clutch driven plate assembly |
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| CN105843158A (en) * | 2016-05-11 | 2016-08-10 | 惠州市德赛电池有限公司 | Positioning method and apparatus based on laser-shaped measurement sensor |
| CN106152979A (en) * | 2016-08-30 | 2016-11-23 | 苏州博众精工科技有限公司 | A kind of flatness checking device |
| CN106197329A (en) * | 2016-06-28 | 2016-12-07 | 黑龙江省木材科学研究所 | A kind of motion ground flatness detecting device, detecting system and detection method |
| CN106289119A (en) * | 2016-09-26 | 2017-01-04 | 歌尔股份有限公司 | A kind of flatness measuring instrument |
| CN106403850A (en) * | 2016-08-30 | 2017-02-15 | 苏州博众精工科技有限公司 | Flatness detection method |
| CN107091604A (en) * | 2017-05-19 | 2017-08-25 | 铜陵长江金刚石工具有限责任公司 | A kind of two-dimentional road level degree tester |
| CN108548506A (en) * | 2018-05-24 | 2018-09-18 | 郑州辰维科技股份有限公司 | A method of the measurement of planeness being carried out to high precision plane using optical markers |
| CN110293452A (en) * | 2019-07-30 | 2019-10-01 | 无锡恩梯量仪科技有限公司 | A kind of part optical flatness detection machine |
| CN110567365A (en) * | 2019-07-26 | 2019-12-13 | 艾力机器人科技(苏州)有限公司 | cell-phone part automatic checkout device |
| CN111928800A (en) * | 2020-06-01 | 2020-11-13 | 深圳市誉辰自动化设备有限公司 | Non-contact type detector for battery appearance |
| CN112588602A (en) * | 2020-11-16 | 2021-04-02 | 广东九联科技股份有限公司 | Control method for full-automatic flatness measurement |
| CN113358086A (en) * | 2021-03-22 | 2021-09-07 | 富泰华工业（深圳）有限公司 | Plane adjusting device and plane adjusting method |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104330059B (en) * | 2014-10-22 | 2017-07-07 | 宁波宏协股份有限公司 | A kind of flatness checking device of vehicle clutch driven disc assembly |
| CN104330059A (en) * | 2014-10-22 | 2015-02-04 | 宁波宏协离合器有限公司 | Flatness detection device for automobile clutch driven plate assembly |
| CN105371772A (en) * | 2015-10-30 | 2016-03-02 | 东莞市嘉腾仪器仪表有限公司 | 3D element height detector and detection steps thereof |
| CN105843158A (en) * | 2016-05-11 | 2016-08-10 | 惠州市德赛电池有限公司 | Positioning method and apparatus based on laser-shaped measurement sensor |
| CN106197329A (en) * | 2016-06-28 | 2016-12-07 | 黑龙江省木材科学研究所 | A kind of motion ground flatness detecting device, detecting system and detection method |
| CN106152979A (en) * | 2016-08-30 | 2016-11-23 | 苏州博众精工科技有限公司 | A kind of flatness checking device |
| CN106403850A (en) * | 2016-08-30 | 2017-02-15 | 苏州博众精工科技有限公司 | Flatness detection method |
| CN106289119B (en) * | 2016-09-26 | 2019-06-21 | 歌尔股份有限公司 | A kind of flatness measuring instrument |
| CN106289119A (en) * | 2016-09-26 | 2017-01-04 | 歌尔股份有限公司 | A kind of flatness measuring instrument |
| CN107091604A (en) * | 2017-05-19 | 2017-08-25 | 铜陵长江金刚石工具有限责任公司 | A kind of two-dimentional road level degree tester |
| CN108548506A (en) * | 2018-05-24 | 2018-09-18 | 郑州辰维科技股份有限公司 | A method of the measurement of planeness being carried out to high precision plane using optical markers |
| CN110567365A (en) * | 2019-07-26 | 2019-12-13 | 艾力机器人科技(苏州)有限公司 | cell-phone part automatic checkout device |
| CN110293452A (en) * | 2019-07-30 | 2019-10-01 | 无锡恩梯量仪科技有限公司 | A kind of part optical flatness detection machine |
| CN111928800A (en) * | 2020-06-01 | 2020-11-13 | 深圳市誉辰自动化设备有限公司 | Non-contact type detector for battery appearance |
| CN112588602A (en) * | 2020-11-16 | 2021-04-02 | 广东九联科技股份有限公司 | Control method for full-automatic flatness measurement |
| CN113358086A (en) * | 2021-03-22 | 2021-09-07 | 富泰华工业（深圳）有限公司 | Plane adjusting device and plane adjusting method |
| CN113358086B (en) * | 2021-03-22 | 2024-02-20 | 富泰华工业（深圳）有限公司 | Plane adjusting device and plane adjusting method |
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Application publication date: 20140723 |