CN110926938A - Inclined plane multipoint micro-force height measuring system - Google Patents
Inclined plane multipoint micro-force height measuring system Download PDFInfo
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- CN110926938A CN110926938A CN201911259357.0A CN201911259357A CN110926938A CN 110926938 A CN110926938 A CN 110926938A CN 201911259357 A CN201911259357 A CN 201911259357A CN 110926938 A CN110926938 A CN 110926938A
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- 238000005259 measurement Methods 0.000 claims abstract description 34
- 238000012360 testing method Methods 0.000 claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims abstract description 26
- 238000006073 displacement reaction Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 14
- 238000000418 atomic force spectrum Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 241000773945 Trimusculidae Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000003908 quality control method Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/08—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Abstract
The invention discloses an inclined plane multipoint micro-force height measurement system and relates to the technical field of height measurement systems. Including force transducer, the test needle, displacement sensor, linear transmission mechanism, moving platform and collector, linear transmission mechanism includes the motor, the fixed lead screw that is provided with of output shaft of motor, be provided with force transducer on the lead screw, force transducer's the fixed test needle that is provided with in bottom, one side of linear transmission mechanism is provided with moving platform, the fixed collector that is provided with in top of linear transmission mechanism, the surface of lead screw is provided with displacement sensor through the activity of movable block. The inclined plane multi-point micro-force height measurement system can be suitable for single-point height measurement, inclined plane multi-point height measurement and plane multi-point height measurement, the height is measured simultaneously when force parameters are measured, the height is measured in a single position multi-state mode, for example, 5g and 100g, the cost is low, the precision is high, the efficiency is high, direct testing is conducted when the force characteristics of products are tested, only 2 calibration steps need to be added, and extra cost and time occupation are avoided.
Description
Technical Field
The invention relates to the technical field of height measuring systems, in particular to an inclined plane multipoint micro-force height measuring system.
Background
In precision manufacturing industries such as 3C electronics, automotive electronics, press-fitting industry and the like, when quality control is performed on strength-stroke of products, the height of the products needs to be tested at the same time, the traditional method is to add a contact type altimeter for measurement or use an optical test for measurement, sensors need to be additionally added in the two methods, the cost is increased, and the measurement time is prolonged.
And part product rigidity itself is low, uses altimeter sensor contact force itself can be to product height product serious influence, causes unable test, and the optical measurement mode leads to measurement accuracy poor (typical product is like smart mobile phone button shell mirror surface reflection of light and cambered surface characteristic, notebook dull polish button, the error more than 0.02-0.03 mm) because of the product surface reflection of light or unevenness.
The invention provides a height measuring system which can simultaneously test the height of a product when measuring the mechanical property of the product, can accurately measure the height of a plurality of characteristic points on the product even when the product is integrally inclined, has the precision of 0.003mm, does not need any other additional sensor and has low cost, and thus, the inclined plane multipoint micro-force height measuring system is designed.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an inclined plane multipoint micro-force height measuring system to solve the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an inclined plane multiple spot micro-force altimetry system, includes force transducer, test needle, displacement sensor, sharp drive mechanism, moving platform and collector, sharp drive mechanism includes the motor, the fixed lead screw that is provided with of output shaft of motor, be provided with force transducer on the lead screw, force transducer's the fixed test needle that is provided with in bottom, one side of sharp drive mechanism is provided with moving platform, the fixed collector that is provided with in sharp drive mechanism's top, the surface of lead screw is provided with displacement sensor through the activity of movable block.
As a preferable technical scheme of the invention, the linear transmission mechanism drives the force sensor and the test needle to test a reference point A, and the collector collects force-stroke data in the motion process in real time and draws a force-stroke curve G1.
As a preferable technical scheme of the invention, the moving platform drives the force sensor, the test needle, the displacement sensor and the linear transmission mechanism to move above a reference point B, the point B is tested, and a force curve G2 is drawn.
As a preferable technical scheme of the invention, the moving platform drives the force sensor, the test needle, the displacement sensor and the linear transmission mechanism to move to any point location C, D, E needing height measurement, and a force-stroke curve Gx is drawn, wherein x is the point location needing height measurement.
As a preferred technical scheme of the invention, calculation is carried out, because the A, B, C and D are known to be on a straight line, different stroke values of the same force point are the stroke values of the force sensors corresponding to the measured positions, the plane coordinate value of the point A B is known, and the absolute height of the point AB is 0, so that the height value of any point to be measured can be calculated according to the trigonometric function relation.
As a preferred technical scheme of the invention, the plane product is replaced, repeated calculation is carried out, and the height value of any point is calculated.
(III) advantageous effects
Compared with the prior art, the invention provides an inclined plane multipoint micro-force height measuring system, which has the following beneficial effects:
the invention provides an inclined plane multi-point micro-force height measurement system, which can be suitable for single-point height measurement, inclined plane multi-point height measurement and plane multi-point height measurement, wherein the height is measured simultaneously when force parameters are measured, the height is measured simultaneously when the height is measured at a single position in multiple states, such as 5g and 100g, the cost is low, the precision is high, the efficiency is high, the direct test is carried out when the force characteristics of a product are tested, only 2 calibration steps are needed to be added, the extra cost and the time occupation are avoided, the actual measurement repeatability can reach 0.002mm, and the GRR is less than 10%.
Drawings
FIG. 1 is a schematic structural diagram of a slope multi-point micro-force height measurement system according to the present invention;
FIG. 2 is a schematic diagram of the height of the CDE point measured by the straight slope of the slope multi-point micro-force height measurement system according to the present invention;
FIG. 3 is a schematic diagram showing the height of any point CDE in a plane slope test of the slope multi-point micro-force height measurement system according to the present invention;
FIG. 4 is an overlapped schematic diagram of reference waveforms G1, G2 and Gx of the slope multi-point micro force height measurement system according to the present invention;
fig. 5 is an overlapped comparison diagram of a reference waveform G1G 2 Gx of the slope multi-point micro-force height measurement system provided by the invention.
In the figure: 1. a force sensor; 2. a test pin; 3. a displacement sensor; 4. a linear transmission mechanism; 41. a motor; 42. a screw rod; 5. a mobile platform; 6. a collector.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-5, the invention discloses an inclined plane multipoint micro force height measuring system, which comprises a force sensor 1, a test needle 2, a displacement sensor 3, a linear transmission mechanism 4, a moving platform 5 and a collector 6, wherein the linear transmission mechanism 4 comprises a motor 41, a screw rod 42 is fixedly arranged on an output shaft of the motor 41, the force sensor 1 is arranged on the screw rod 42, the test needle 2 is fixedly arranged at the bottom of the force sensor 1, the moving platform 5 is arranged on one side of the linear transmission mechanism 4, the collector 6 is fixedly arranged at the top of the linear transmission mechanism 4, and the displacement sensor 3 is movably arranged on the surface of the screw rod 42 through a movable block.
Height using procedure of measuring CDE point by straight inclined plane:
s1, the linear transmission mechanism 4 drives the force sensor 1 and the test needle 2 to test a reference point A, the collector 6 collects force-stroke data in the motion process in real time and draws a force-stroke curve G1;
s2, the moving platform 5 drives the force sensor 1, the testing needle 2, the displacement sensor 3 and the linear transmission mechanism 4 to move to a position above a reference point B, the point B is tested, and a force curve G2 is drawn;
s3, moving to any point position C, D, E needing height measurement in the same step S2, and drawing a force-stroke curve Gx, wherein x is the point position needing height measurement;
s4, please refer to FIG. 3, calculating, because it is known that AB C D E is on a straight line, different stroke values of a same force point are the measured stroke values of the force sensor corresponding to each point, the plane coordinate values of A and B are known, and the absolute height of AB point is 0, the height value of any point to be measured can be calculated according to trigonometric function relation;
and S5, replacing the plane product, repeating the steps 1-4, and calculating the height value of any point.
Example two: referring to fig. 1-5, the invention discloses an inclined plane multipoint micro force height measuring system, which comprises a force sensor 1, a test needle 2, a displacement sensor 3, a linear transmission mechanism 4, a moving platform 5 and a collector 6, wherein the linear transmission mechanism 4 comprises a motor 41, a screw rod 42 is fixedly arranged on an output shaft of the motor 41, the force sensor 1 is arranged on the screw rod 42, the test needle 2 is fixedly arranged at the bottom of the force sensor 1, the moving platform 5 is arranged on one side of the linear transmission mechanism 4, the collector 6 is fixedly arranged at the top of the linear transmission mechanism 4, and the displacement sensor 3 is movably arranged on the surface of the screw rod 42 through a movable block.
Height using process of the plane slope test of any point CDE:
s1, the linear transmission mechanism 4 drives the force sensor 1 and the test needle 2 to test a reference point A1, the collector 6 collects force-stroke data in the motion process in real time and draws a force-stroke curve G1;
s2, the moving platform 5 drives the force sensor 1, the testing needle 2, the displacement sensor 3 and the linear transmission mechanism 4 to move to a position above a reference point B1, a point B is tested, and a force curve G2 is drawn;
s3, moving to A2B 2 in the same step S2, and drawing force-stroke curves G3 and G4 by the test benchmarks A2 and B2;
s4, moving to any point position C, D, E needing height measurement in the same step S2, and drawing a force-stroke curve Gx, wherein x is the point position needing height measurement;
s5, please refer to FIG. 3, calculate, because it is known that A1B 1A 2B 2C D E is on the same plane, the overlapped curve G1G 2G 3G 4G 5 is on the same coordinate system, as shown in FIG. 3, different stroke values of the same force point are the stroke values of the measured force sensors corresponding to each point, the plane coordinate values of A and B points are known, and the absolute height of AB point is 0, the height value of any point to be measured can be calculated according to the trigonometric function relationship;
and S6, replacing the inclined plane product, repeating the steps 1-5, and calculating the height value of any point.
In summary, the slope multi-point micro-force height measurement system can be suitable for single-point height measurement, slope multi-point height measurement and plane multi-point height measurement, the height is measured simultaneously when force parameters are measured, the height is measured in a single position and in multiple states, such as 5g and 100g, the cost is low, the precision is high, the efficiency is high, the product force characteristics are tested directly, only 2 calibration steps are needed to be added, extra cost and time occupation are avoided, the actual measurement repeatability can reach 0.002mm, and the GRR is less than 10%.
It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an inclined plane multiple spot micro-force altimetry system, includes force transducer (1), test needle (2), displacement sensor (3), sharp drive mechanism (4), moving platform (5) and collector (6), its characterized in that: linear transmission (4) include motor (41), the fixed lead screw (42) that is provided with of output shaft of motor (41), be provided with strength sensor (1) on lead screw (42), the fixed test needle (2) that is provided with in bottom of strength sensor (1), one side of linear transmission (4) is provided with moving platform (5), the fixed collector (6) that is provided with in top of linear transmission (4), the surface of lead screw (42) is provided with displacement sensor (3) through the activity of movable block.
2. The system of claim 1, wherein: the linear transmission mechanism (4) drives the force sensor (1) and the testing needle (2) to test a reference point A, and the collector (6) collects force-stroke data in the motion process in real time and draws a force-stroke curve G1.
3. The system of claim 2, wherein: the moving platform (5) drives the force sensor (1), the testing needle (2), the displacement sensor (3) and the linear transmission mechanism (4) to move to the position above a reference point B, the point B is tested, and a force curve G2 is drawn.
4. The bevel multi-point micro-force altimetry system of claim 3, wherein: the moving platform (5) drives the force sensor (1), the testing needle (2), the displacement sensor (3) and the linear transmission mechanism (4) to move to any point location C, D, E needing height measurement, and a force-stroke curve Gx is drawn, wherein x is the point location needing height measurement.
5. The bevel multi-point micro-force altimetry system of claim 4, wherein: and calculating, because the AB CD E is known to be on a straight line, different stroke values of the same force point are the stroke values of the force sensors corresponding to the measured positions, the plane coordinate value of the A B point is known, and the absolute height of the AB point is 0, so that the height value of any point to be measured can be calculated according to the trigonometric function relationship.
6. The bevel multi-point micro-force altimetry system of claim 5, wherein: replacing the plane product, repeatedly calculating and calculating the height value of any point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911259357.0A CN110926938A (en) | 2019-12-10 | 2019-12-10 | Inclined plane multipoint micro-force height measuring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911259357.0A CN110926938A (en) | 2019-12-10 | 2019-12-10 | Inclined plane multipoint micro-force height measuring system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209741A (en) * | 1991-08-30 | 1993-08-20 | Canon Inc | Method and apparatus for measuring surface shape |
| JPH10141941A (en) * | 1996-11-08 | 1998-05-29 | Tokyo Electric Power Co Inc:The | Method for measuring thickness of asphalt mixture |
| DE10327886A1 (en) * | 2003-06-20 | 2005-01-20 | Prokos Produktions-Kontroll-System Gmbh | Floor thickness measuring method e.g. for connection points, involves processing signals and calculating process signals over computation algorithm for thickness |
| US20160202035A1 (en) * | 2013-08-22 | 2016-07-14 | Illinois Tool Works Inc. | Off-axis loadcell force sensing to automatically determine location of specimen features |
| CN206248040U (en) * | 2016-12-09 | 2017-06-13 | 常州安一智能科技有限公司 | A kind of micron order automatic height measurement device |
| CN206974403U (en) * | 2017-08-07 | 2018-02-06 | 黄毅 | Lamination thickness tester |
-
2019
- 2019-12-10 CN CN201911259357.0A patent/CN110926938A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209741A (en) * | 1991-08-30 | 1993-08-20 | Canon Inc | Method and apparatus for measuring surface shape |
| JPH10141941A (en) * | 1996-11-08 | 1998-05-29 | Tokyo Electric Power Co Inc:The | Method for measuring thickness of asphalt mixture |
| DE10327886A1 (en) * | 2003-06-20 | 2005-01-20 | Prokos Produktions-Kontroll-System Gmbh | Floor thickness measuring method e.g. for connection points, involves processing signals and calculating process signals over computation algorithm for thickness |
| US20160202035A1 (en) * | 2013-08-22 | 2016-07-14 | Illinois Tool Works Inc. | Off-axis loadcell force sensing to automatically determine location of specimen features |
| CN206248040U (en) * | 2016-12-09 | 2017-06-13 | 常州安一智能科技有限公司 | A kind of micron order automatic height measurement device |
| CN206974403U (en) * | 2017-08-07 | 2018-02-06 | 黄毅 | Lamination thickness tester |
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