CN109764831B - Non-contact type plate perpendicularity detection device and method - Google Patents
Non-contact type plate perpendicularity detection device and method Download PDFInfo
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- CN109764831B CN109764831B CN201910215554.6A CN201910215554A CN109764831B CN 109764831 B CN109764831 B CN 109764831B CN 201910215554 A CN201910215554 A CN 201910215554A CN 109764831 B CN109764831 B CN 109764831B
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- positioning column
- telescopic cylinder
- displacement sensor
- laser displacement
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Abstract
In domestic enterprises for producing magnesium alloy plates, a contact type manual detection mode is adopted for detecting the verticality of the magnesium plates, and the detection mode has the advantages of higher manual working strength and low efficiency. The non-contact type plate perpendicularity detection device and method provided by the invention adopt the laser displacement sensor and are assisted with the corresponding mechanical device for measurement, the operation is simple, the measurement is accurate, and the device and method are particularly suitable for measuring the plate perpendicularity on a production line.
Description
Technical Field
The invention belongs to the field of industrial assembly line operation perpendicularity detection, and particularly relates to a non-contact type plate perpendicularity detection device and method.
Technical Field
In recent years, with the transformation and upgrading of industries such as the Chinese automobile industry and the 3C industry and the like and the remarkable improvement of the Chinese economic status, the demand of magnesium alloy is more and more increased. Among them, in the digital 3C aspect, the demands for lightness, thinness, environmental protection, and continuous progress in the research and development technologies and recycling technologies of magnesium alloys have led to the widespread use of magnesium alloys. The magnesium alloy plate is used as a processing raw material of shells of notebook computers, flat plates and the like, and has strict requirements on verticality. However, in domestic enterprises producing magnesium alloy plates, a contact type manual detection mode is adopted for detecting the verticality of the magnesium plate. The detection mode enables the manual work intensity to be high, the work standards to be different, and the product consistency can be greatly different. Therefore, the design of the plate perpendicularity detection system has profound significance for the field of plate detection in future, the use of human resources can be reduced, the detection efficiency is improved, and an automatic, non-contact and low-cost and efficient detection mode can be realized. The deer is newly built, and the plum fruit invents a slider perpendicularity detection tool (patent of invention, a slider perpendicularity detection tool, application number: 201820192811. X). The device measures the perpendicularity of a slider, moves through the slider, measures the distance change between the slider and the slider through an eddy current sensor, and if the distance between a measuring surface and the eddy current sensor changes, the change is converted into an electric signal to be output, and then subsequent data processing is carried out. This equipment adopts non-contact to measure, can not appear "getting rid of the table" phenomenon, can measure at a high speed, and data can be preserved to carry out the measurement of two directions simultaneously, raise the efficiency, but in the installation, the part location is comparatively loaded down with trivial details, and the distance between two sensors and the slider is guaranteed unanimously, need measure through the feeler gauge, and the installation effectiveness is low.
Disclosure of Invention
In order to solve the problems, the invention provides a non-contact type plate perpendicularity detection device and a non-contact type plate perpendicularity detection method.
A non-contact plate verticality detection device and a non-contact plate verticality detection method are characterized in that: the support 21 is provided with the marble platform 15, the surface of the marble platform 15 is grooved, and the surface of the marble platform 15 is grooved to reduce the adsorption force between the plate and the marble surface, so that the plate can smoothly move on the marble platform 15. An upper mounting support 19, a lower mounting support 17, a left mounting support 16 and a right mounting support 18 are respectively arranged on the periphery of the marble platform 15 on the support 21. The upper mounting support 19 is provided with an upper left telescopic cylinder 12 and an upper right telescopic cylinder 11, and the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 are both provided with telescopic rods 22; the lower mounting support 17 is provided with a left lower positioning column 3, a right lower positioning column 4, a left lower laser displacement sensor 13 and a right lower laser displacement sensor 14; a left front telescopic cylinder 7, a left rear telescopic cylinder 8, a left front positioning column 1 and a left rear positioning column 2 are arranged on the left mounting support 16; the right mounting support 18 is provided with a right front telescopic cylinder 10, a right rear telescopic cylinder 9, a right front positioning column 6 and a right rear positioning column 5. The stand 21 has a PLC control unit 20 mounted thereon. The distance between the lower left laser displacement sensor 13 and the lower right laser displacement sensor 14 is L1, the plate to be detected is placed on the marble platform 15, the telescopic rods of the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 extend out simultaneously, the plate to be detected is pressed onto the lower left positioning column 3 and the lower right positioning column 4, the distance between the edge of the plate to be detected, measured by the lower left laser displacement sensor 13, and the edge of the plate to be detected, measured by the lower right laser displacement sensor 14, and the distance between the edge of the plate to be detected, and the lower right laser displacement. Then, the PLC control unit 20 controls the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 to be powered off, telescopic rods of the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 are retracted, telescopic rods of the front right telescopic cylinder 10 and the rear right telescopic cylinder 9 are controlled to be extended, a plate to be detected is pressed onto the front left positioning column 1 and the rear left positioning column 2, the edge of the plate to be detected, measured by the lower left laser displacement sensor 13, of the plate to be detected and the edge of the plate to be detected of the lower left laserThe distance between the two is L12, the distance between the edge of the plate to be detected measured by the lower right laser displacement sensor 14 and the lower right laser displacement sensor 14 is L22, LΔ＝|(L22-L21)-(L12-L11) I, then
α＝arctan(LΔ/L1)，
Plate l to be detectedaAnd lbThe included angle between the two sides is 90- α.
The distance between the left lower laser displacement sensor 13 and the lower right laser displacement sensor 14 and the lower edge of the marble platform 15 is greater than the distance between the left lower positioning column 3 and the lower right positioning column 4 and the lower edge of the marble platform 15; the distance between the left front telescopic cylinder 7 and the left rear telescopic cylinder 8 and the left edge of the marble platform 15 is greater than the distance between the left front positioning column 1 and the left rear positioning column 2 and the left edge of the marble platform 15; the distance between the right front telescopic cylinder 10 and the right rear telescopic cylinder 9 and the right edge of the marble platform 15 is greater than the distance between the right front positioning column 6 and the right rear positioning column 5 and the right edge of the marble platform 15. The diameters of the left lower positioning column 3, the right lower positioning column 4, the left front positioning column 1, the left rear positioning column 2, the right front positioning column 6 and the right rear positioning column 5 are the same, the central connecting line of the left front positioning column 1 and the left rear positioning column 2 is perpendicular to the central connecting line of the left lower positioning column 3 and the right lower positioning column 4, and the central connecting line of the right front positioning column 6 and the right rear positioning column 5 is perpendicular to the central connecting line of the left lower positioning column 3 and the right lower positioning column 4.
The non-contact type plate perpendicularity detection device and method provided by the invention are simple to operate and accurate in measurement, and are particularly suitable for measuring the plate perpendicularity on a production line.
Drawings
FIG. 1 is a schematic diagram of the apparatus of the present invention;
fig. 2 is a schematic diagram of the position of a plate to be detected in the detection process of the device.
FIG. 3 is a schematic view of the angle calculation of the plate to be detected in the detection process of the device of the present invention.
Detailed Description
Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The support 21 is provided with the marble platform 15, the surface of the marble platform 15 is grooved, and the surface of the marble platform 15 is grooved to reduce the adsorption force between the plate and the marble surface, so that the plate can smoothly move on the marble platform 15. An upper mounting support 19, a lower mounting support 17, a left mounting support 16 and a right mounting support 18 are respectively arranged on the periphery of the marble platform 15 on the support 21. The upper mounting support 19 is provided with an upper left telescopic cylinder 12 and an upper right telescopic cylinder 11, and the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 are both provided with telescopic rods 22; the lower mounting support 17 is provided with a left lower positioning column 3, a right lower positioning column 4, a left lower laser displacement sensor 13 and a right lower laser displacement sensor 14; a left front telescopic cylinder 7, a left rear telescopic cylinder 8, a left front positioning column 1 and a left rear positioning column 2 are arranged on the left mounting support 16; the right mounting support 18 is provided with a right front telescopic cylinder 10, a right rear telescopic cylinder 9, a right front positioning column 6 and a right rear positioning column 5. The stand 21 has a PLC control unit 20 mounted thereon. The distance between the lower left laser displacement sensor 13 and the lower right laser displacement sensor 14 is L1, the plate to be detected is placed on the marble platform 15, the telescopic rods of the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 extend out simultaneously, the plate to be detected is pressed onto the lower left positioning column 3 and the lower right positioning column 4, the distance between the edge of the plate to be detected, measured by the lower left laser displacement sensor 13, and the edge of the plate to be detected, measured by the lower right laser displacement sensor 14, and the distance between the edge of the plate to be detected, and the lower right laser displacement. Then, the PLC control unit 20 controls the upper left telescopic cylinder 12 and the upper right telescopic cylinder 11 to be powered off, the telescopic rods thereof are retracted, the telescopic rods of the front right telescopic cylinder 10 and the rear right telescopic cylinder 9 are controlled to be extended, the plate to be detected is pressed onto the front left positioning column 1 and the rear left positioning column 2, the dotted line position in fig. 2 is the position of the plate after the plate is moved, the distance between the edge of the plate to be detected, which is measured by the lower left laser displacement sensor 13, and the lower left laser displacement sensor 13 is L12, the distance between the edge of the plate to be detected, which is measured by the lower right laser displacement sensor 14, and the lower right laser displacement sensor 14 is L22, and LΔ＝|(L22-L21)-(L12-L11) I, as shown in FIG. 2, the present inventionAngle α to be measured in the mean time is moved by laAnd before movementaThe triangle that the angle α lies in is similar to △ ABC, as shown in FIG. 3, so
∠BAC＝∠α，
α＝arctan(LΔ/L1)，
Because the center connecting line of the left front positioning column 1 and the left rear positioning column 2 is vertical to the center connecting line of the left lower positioning column 3 and the right lower positioning column 4, the plate l to be detectedaAnd lbThe included angle between the two sides is 90- α.
Similarly, if l is requiredaAnd ldThe included angle between, only need in PLC the last telescopic cylinder 12 of left side and the last telescopic cylinder 11 outage of right side of PLC the control unit 20 control, when its telescopic link was withdrawed, only need control the telescopic link of the preceding telescopic cylinder 7 in a left side and the telescopic cylinder 8 in a left side and stretch out, will wait to detect that panel presses right front reference column 6 and right rear reference column 5 on, carry out with last the same measurement can.
Claims (2)
1. A non-contact plate perpendicularity detection method is characterized by comprising the following steps: the support (21) is provided with a marble platform (15), and the surface of the marble platform (15) is grooved; an upper mounting support (19), a lower mounting support (17), a left mounting support (16) and a right mounting support (18) are respectively arranged on the support (21) and around the marble platform (15); the upper mounting support (19) is provided with an upper left telescopic cylinder (12) and an upper right telescopic cylinder (11), and the upper left telescopic cylinder (12) and the upper right telescopic cylinder (11) are both provided with telescopic rods (22); the lower mounting support (17) is provided with a left lower positioning column (3), a right lower positioning column (4), a left lower laser displacement sensor (13) and a right lower laser displacement sensor (14); a left front telescopic cylinder (7), a left rear telescopic cylinder (8), a left front positioning column (1) and a left rear positioning column (2) are arranged on the left mounting support (16); a right front telescopic cylinder (10), a right rear telescopic cylinder (9), a right front positioning column (6) and a right rear positioning column (5) are arranged on the right mounting support (18); a PLC control unit (20) is arranged on the support (21); the distance between the lower left laser displacement sensor (13) and the lower right laser displacement sensor (14) is L1, a plate to be detected is placed on the marble platform (15), and the upper left telescopic cylinder (12) and the upper right telescopic cylinder (14) are connected with each otherThe telescopic rod of the upper right telescopic cylinder (11) extends out simultaneously, a plate to be detected is pressed onto the lower left positioning column (3) and the lower right positioning column (4), the distance between the edge of the plate to be detected, measured by the lower left laser displacement sensor (13), and the lower left laser displacement sensor (13) is L11, the distance between the edge of the plate to be detected, measured by the lower right laser displacement sensor (14), and the lower right laser displacement sensor (14) is L21, then the PLC control unit (20) controls the upper left telescopic cylinder (12) and the upper right telescopic cylinder (11) to be powered off, the telescopic rods thereof are retracted, then the telescopic rods of the front right telescopic cylinder (10) and the rear right telescopic cylinder (9) are controlled to extend out, the plate to be detected is pressed onto the front left positioning column (1) and the rear left positioning column (2), the distance between the edge of the plate to be detected, measured by the lower left laser displacement sensor (13), and the lower left laser displacement sensor (13) is L, the distance between the edge of the plate to be detected and the lower right laser displacement sensor (14) measured by the lower right laser displacement sensor (14) is L22, and LΔ＝|(L22-L21)-(L12-L11) I, then
Plate l to be detectedaAnd lbThe included angle between the two sides is 90- α.
2. The non-contact plate perpendicularity detection method according to claim 1, characterized in that: the distance between the left lower laser displacement sensor (13) and the lower right laser displacement sensor (14) and the lower edge of the marble platform (15) is greater than the distance between the left lower positioning column (3) and the lower right positioning column (4) and the lower edge of the marble platform (15); the distance between the left front telescopic cylinder (7) and the left rear telescopic cylinder (8) and the left edge of the marble platform (15) is greater than the distance between the left front positioning column (1) and the left rear positioning column (2) and the left edge of the marble platform (15); the distance between the right front telescopic cylinder (10) and the right rear telescopic cylinder (9) and the right edge of the marble platform (15) is greater than the distance between the right front positioning column (6) and the right rear positioning column (5) and the right edge of the marble platform (15); the diameters of the left lower positioning column (3), the right lower positioning column (4), the left front positioning column (1), the left rear positioning column (2), the right front positioning column (6) and the right rear positioning column (5) are the same, the central connecting lines of the left front positioning column (1) and the left rear positioning column (2) are perpendicular to the central connecting lines of the left lower positioning column (3) and the right lower positioning column (4), and the central connecting lines of the right front positioning column (6) and the right rear positioning column (5) are perpendicular to the central connecting lines of the left lower positioning column (3) and the right lower positioning column (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910215554.6A CN109764831B (en) | 2019-03-21 | 2019-03-21 | Non-contact type plate perpendicularity detection device and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910215554.6A CN109764831B (en) | 2019-03-21 | 2019-03-21 | Non-contact type plate perpendicularity detection device and method |
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| CN109764831A CN109764831A (en) | 2019-05-17 |
| CN109764831B true CN109764831B (en) | 2020-08-21 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009100820A (en) * | 2007-10-19 | 2009-05-14 | Takazono Sangyo Co Ltd | Size measuring tool for tablet sheet |
| CN101886918A (en) * | 2010-01-29 | 2010-11-17 | 河北东旭投资集团有限公司 | Fast measuring method of right angle of large-sized rectangular glass substrate and measuring instrument thereof |
| CN102121814B (en) * | 2010-12-21 | 2012-10-24 | 重庆江利圣特机械制造有限责任公司 | Tool for measuring perpendicularity of workpiece |
| CN203310357U (en) * | 2013-06-28 | 2013-11-27 | 青岛海信模具有限公司 | Workpiece perpendicularity detecting tool |
| CN103389046A (en) * | 2013-08-09 | 2013-11-13 | 昆山允可精密工业技术有限公司 | Automatic thin plate measuring device with compound measuring function |
| CN204831150U (en) * | 2015-08-07 | 2015-12-02 | 张家港润通海洋工程科技有限公司 | Cutting plane perpendicularity detects angle square |
| CN105526869A (en) * | 2016-01-11 | 2016-04-27 | 浙江恒立数控科技股份有限公司 | Multifunctional sheet material detection device |
| CN207163430U (en) * | 2017-08-29 | 2018-03-30 | 重庆华丰迪杰特印刷材料有限公司 | A kind of squareness measuring table |
| CN207487596U (en) * | 2017-09-30 | 2018-06-12 | 成都新图新材料股份有限公司 | CTP plate size detecting devices |
| CN208313218U (en) * | 2018-07-06 | 2019-01-01 | 苏州生益科技有限公司 | A kind of board dimension self-operated measuring unit |
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Granted publication date: 20200821 |