CN106839983A - Stress Quadratic Finite Element detects all-in-one - Google Patents
Stress Quadratic Finite Element detects all-in-one Download PDFInfo
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- CN106839983A CN106839983A CN201710128278.0A CN201710128278A CN106839983A CN 106839983 A CN106839983 A CN 106839983A CN 201710128278 A CN201710128278 A CN 201710128278A CN 106839983 A CN106839983 A CN 106839983A
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- detection
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- 238000001514 detection method Methods 0.000 claims abstract description 81
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 238000003384 imaging method Methods 0.000 claims description 34
- 238000012545 processing Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 230000001276 controlling effect Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 230000005693 optoelectronics Effects 0.000 claims description 3
- 239000005336 safety glass Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 239000011521 glass Substances 0.000 description 8
- 238000005259 measurement Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000006058 strengthened glass Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/24—Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0047—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes measuring forces due to residual stresses
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention belongs to field of optical detection,More particularly to a kind of stress Quadratic Finite Element detection all-in-one that can be detected to safety glass stress and secondary metamessage simultaneously,Including working plate,Working plate is provided with stress detection mechanism and Quadratic Finite Element testing agency,The stress detection mechanism is arranged on working plate,Stress mornitoring is carried out to measuring samples,The Quadratic Finite Element testing agency is erected at the stress detection mechanism top,Quadratic Finite Element infomation detection is carried out to measuring samples,Thus measuring samples can be carried out with stress mornitoring and Quadratic Finite Element infomation detection simultaneously using all-in-one of the present invention,Reduce manufacturing cost,Save floor space,It is low to detection site requirements,Detection process only needs to be equipped with a testing staff,Save a large amount of manpowers,And whole detection process need not move back and forth measuring samples,Reduce the risk that measuring samples are caused with damage,Improve detection efficiency,With wide market prospects.
Description
Technical field
The invention belongs to field of optical detection, more particularly to one kind can be simultaneously to safety glass stress and secondary metamessage
The stress Quadratic Finite Element detection all-in-one for being detected.
Background technology
Also known as strengthened glass, it is a kind of prestressed glass to safety glass, usually using method chemically or physically, in glass
Glass surface forms compression, and glass bears to offset surface layer pressure first during external force, so as to improve bearing capacity, thus tempering glass
Glass is widely used in the fields such as building doors and windows, glass curtain wall, electronic instrument.But safety glass cutting back edge can exist a large amount of
Micro-crack, causes strength of glass to reduce.Especially with flourishing for touch-control industry, the specification requirement of touch-control product in itself
It is increasingly strict, because contact panel is to apply pressure by outside to go the function mode for carrying out inductive component to use effect so as to reach
Really, thus product mechanical compressive resistance be all big enterprises important specification and index.Simultaneously as safety glass is widely used in
The electronic product panels such as mobile phone screen, Quadratic Finite Element infomation detection also constitutes an importance of safety glass detection project.Two
Secondary metamessage is primarily referred to as other dimensionings such as the basic sizes such as the length and width of product or mould and its hole for including or groove
It is very little, especially for electronic product panel, to be subject to strict to be optimal performance, length and width, hole of electronic product panel etc.
Limit, thus, the important step of the detection as the work of electronic product panel Quality Detection of secondary metamessage.In this market back of the body
Under scape, how fast and accurately measure safety glass stress and secondary metamessage, as safety glass manufacturer and application
The focal issue that business is concerned about.
, it is necessary to be divided into stress mornitoring and secondary when being detected to safety glass stress and secondary metamessage in the market
Metamessage detection two procedures are carried out respectively, and procedure detection can just carry out the detection of next process after completing.It is existing
This detection mode needs two sets of testing equipments, need to occupy large area measurement space, detection place is had higher requirements, while two
Set testing equipment, increased safety glass testing cost.Importantly, two sets of testing equipments at least need to be equipped with two detections
Personnel, waste a large amount of manpowers, and this detection mode needs at least to place twice measuring samples, increased to measuring samples
The risk damaged is caused, and moves back and forth measuring samples, cause measurement efficiency very low.
The content of the invention
Present invention aim to address above-mentioned the deficiencies in the prior art, there is provided one kind saves manpower, testing cost is low, occupy
The stress Quadratic Finite Element detection that space is small, detection efficiency is high and can be detected to safety glass stress and secondary metamessage simultaneously
All-in-one.
The present invention solves the technical scheme that above-mentioned the deficiencies in the prior art are used：
A kind of stress Quadratic Finite Element detects all-in-one, including working plate, it is characterised in that working plate is provided with stress mornitoring machine
Structure and Quadratic Finite Element testing agency, the stress detection mechanism are arranged on working plate, and measuring samples are carried out with stress mornitoring, institute
State Quadratic Finite Element testing agency and be erected at the stress detection mechanism top, Quadratic Finite Element infomation detection is carried out to measuring samples.
Stress detection mechanism of the present invention includes lighting unit, anaclasis unit, imaging unit, image procossing list
Unit, the lighting unit is located at working plate lower section with the imaging unit, and the anaclasis unit is located at the work
On platen, for placing measuring samples, the lighting unit, the anaclasis unit constitute a light path with the imaging unit,
The anaclasis unit is located at the light direction of the launch of the lighting unit, and the imaging unit is located at the light path rear end, described
The light that lighting unit is launched is incided in the measuring samples on anaclasis unit, through entering the imaging unit after total reflection
Imaging, the imaging unit connects described image processing unit, the figure that described image processing unit is obtained to the imaging unit
As carrying out calculating treatment.
Lighting unit of the present invention includes the first light source and the first light source controlling mechanism, and first light source adjusts machine
Structure is that the working plate lower section is provided with fixed seat and regulating block, and the fixed seat is arranged on the working plate downside,
Described regulating block one end is hinged through bearing pin with the fixed seat, and the regulating block other end is provided with first light source, the tune
Locking nub middle part is provided with the regulation screwed hole of up/down perforation, and adjusting screw rod is provided with the regulation screwed hole, the adjusting screw rod
One end is acted against on the working plate downside, and the other end of the adjusting screw rod is provided with knob, the fixed seat and the tune
Back-moving spring is provided between locking nub.The setting of the first light source controlling mechanism, makes all-in-one of the present invention in detection measuring samples stress
When be only capable of achieving, to the fine adjustments of the first light source incidence angle, not only to simplify overall structure by turn knob, improve
The integrated level of the whole machine of all-in-one of the present invention, and allow that the first light source incidence angle adjusts more flexibly, improve this
Invention stress mornitoring precision and detection efficiency.
The regulating block of the first light source one end of the present invention is provided with linear bearing, and being provided with the linear bearing can edge
Its sliding axle slidably, the sliding axle is provided with light source fixed seat, and the light source fixed seat is provided with least one
One light source.The present invention by light source fixed seat set at least one first light sources, allow all-in-one of the present invention according to should
The actual conditions of power detection, select suitable light source, expand the scope of application of all-in-one of the present invention, improve stress of the present invention
The flexibility of detection.
First light source of the present invention is LED array light source.First light source is not only excellent by using LED array light source
Change the optical system of all-in-one stress mornitoring part of the present invention, simplify overall structure, and the light luminance that light source sends
High, homogeneous effect is good, improves the accuracy of detection of all-in-one of the present invention, while reducing manufacturing cost again.
Anaclasis unit of the present invention is that prism platform is provided with the working plate, and the prism platform middle part is provided with
The prism mounting hole of up/down perforation, is provided with isosceles prism in the prism mounting hole, the bottom surface of the isosceles prism is slightly convex
For the prism mounting hole upper surface, the measuring samples are placed on the bottom surface of the isosceles prism.First light
The light that source light source is launched is incided on the bottom surface of isosceles prism by one of central plane of isosceles prism, in isosceles three
Prism bases are totally reflected with the contact surface of measuring samples, the light after total reflection by prism another central plane outgoing
After enter into the imaging unit and be imaged.
Imaging unit of the present invention is to be disposed with lens group, polarizer and image sensing along the optical path direction
Device, the front end of the lens group is located at the light injection direction of the prism, and the light that the prism is projected is converged, described
The rear end of microscope group is provided with polarizer, and the light after the polarizer converges the lens group is separated into relative to the prism and institute
The boundary face parallel vibrating of measuring samples and two kinds of light compositions of vertical vibration are stated, the rear end of the polarizer is provided with image sensing
Device, the light that described image sensor will be received carries out opto-electronic conversion, and the brightness value one by one of multiple pixels of pie graph picture is made
It is DID output to graphics processing unit.
Quadratic Finite Element testing agency of the present invention includes being erected at the detection framework above working plate, in detection framework
Taking unit is provided with, the taking unit is located at anaclasis unit top, and the taking unit enters to the measuring samples
Row IMAQ, the taking unit connects graphics processing unit, and described image processing unit is collected to the taking unit
Image carry out calculating treatment.
Taking unit of the present invention is that multigroup camera is provided with above the prism, and the camera is provided with axis light
Source, the working plate is provided with reflecting element, and the anaclasis unit is arranged on the reflecting element, the reflecting element
The light that the coaxial light source is launched is reflected.The light that coaxial light source is launched incides anti-after being transmitted through measuring samples
Element is penetrated, the camera above measuring samples is reached after reflected element reflection, multigroup camera on measuring samples simultaneously to mutually hanging down
Straight two dimensional directions collection image, the image information that then will be collected is sent to graphics processing unit, by image procossing list
Unit synthesizes the two dimensional image of measuring samples according to image information, and the calculating of measuring samples Quadratic Finite Element is carried out finally according to two dimensional image
Treatment.
Taking unit of the present invention is that multigroup camera is provided with above the prism, and the prism lower section is provided with the second light
Source, the light that the secondary light source sends enters the camera after the measuring samples on prism.
Detection framework of the present invention is provided with guide post and guide post governor motion, the guide post governor motion pair
The position of guide post is adjusted, and the camera is arranged on the guide post, and the guide post is along measuring samples side long, short side
Direction respectively sets one group, and three groups of cameras, the guide post of the short side direction are correspondingly arranged on the guide post of the long side direction
On be correspondingly arranged on two groups of cameras, that is to say, that be correspondingly provided with along one group of guide post of measuring samples long side direction three groups, altogether
Six cameras, the sized image for gathering measuring samples broadside, the correspondence along one group of guide post of measuring samples short side direction
Two groups, totally four cameras are provided with, the sized image for gathering measuring samples side long.The present invention sets by above measuring samples
Five groups, ten cameras are put, can be carried simultaneously to measuring samples side long and the orthogonal dimensional directions collection image of short side two
High detection efficiency and accuracy of detection.Meanwhile, five groups of cameras are respectively mounted on the guide bar, are easy to guide post governor motion to phase
The position of machine is adjusted, easy to operate.
Guide post governor motion of the present invention is that ball-screw and horizontal slide rail are provided with detection framework, the water
Smooth rail is provided with horizontal slide, and the guide post is arranged on the horizontal slide, the nut connection institute of the ball-screw
State horizontal slide.All-in-one of the present invention pass through ball-screw running drive horizontal slide on guide post along horizontal slide rail come
Return is dynamic, so as to carry out accurate adjustment to the camera position on guide post, improves all-in-one certainty of measurement of the present invention.
The beneficial effects of the invention are as follows because stress Quadratic Finite Element of the present invention detects all-in-one, including working plate, workbench
Plate is provided with stress detection mechanism and Quadratic Finite Element testing agency, and the stress detection mechanism is arranged on working plate, to be checked
Sample carries out stress mornitoring, and the Quadratic Finite Element testing agency is erected at the stress detection mechanism top, measuring samples are carried out
Quadratic Finite Element infomation detection, thus measuring samples can be carried out with stress mornitoring and secondary metamessage simultaneously using all-in-one of the present invention
Detection, reduces manufacturing cost, saves floor space, low to detection site requirements, and detection process only needs to be equipped with an inspection
Survey personnel, save a large amount of manpowers, and whole detection process need not move back and forth measuring samples, reduce and measuring samples are made
Into the risk damaged, detection efficiency is improve.
Brief description of the drawings
Fig. 1 is a kind of example structure schematic diagram of all-in-one of the present invention, is also a kind of preferred embodiment schematic diagram.
Fig. 2 is a kind of structural representation of stress detection mechanism of the present invention.
Fig. 3 is the top view of Fig. 2.
Fig. 4, Fig. 5 are the structural representation of light source controlling mechanism in stress detection mechanism of the present invention.
Fig. 6 is a kind of structural representation of Quadratic Finite Element testing agency of the present invention.
Fig. 7 is a kind of structural representation of Quadratic Finite Element testing agency of the present invention taking unit.
Specific embodiment
Hereinafter describe for disclosing the present invention so that those skilled in the art can realize the present invention.It is excellent in below describing
Embodiment is selected to be only used as citing, it may occur to persons skilled in the art that other obvious modifications.Define in the following description
General principle of the invention can apply to other embodiments, deformation program, improvement project, equivalent and without the back of the body
From the other technologies scheme of the spirit and scope of the present invention.
Fig. 1 shows that stress Quadratic Finite Element of the present invention detects a kind of example structure schematic diagram of all-in-one, is also a kind of excellent
Select embodiment schematic diagram.As shown in figure 1, the stress Quadratic Finite Element detection all-in-one described in the present embodiment, including working plate 10, institute
State working plate 10 and be provided with stress detection mechanism 20 and Quadratic Finite Element testing agency 30, the stress detection mechanism 20 is arranged on work
Make on platen, measuring samples are carried out with stress mornitoring, the Quadratic Finite Element testing agency 30 is erected at the stress detection mechanism 20
Measuring samples are carried out Quadratic Finite Element infomation detection by top.As shown in Fig. 2 the stress detection mechanism described in the present embodiment includes shining
Bright unit 21, anaclasis unit 22, imaging unit 23, graphics processing unit（Not shown in figure）, the lighting unit 21 and institute
Imaging unit 23 is stated positioned at the lower section of the working plate 10, the anaclasis unit 22 is located on the working plate, for placing
Measuring samples, the lighting unit 21, the anaclasis unit 22 constitute a light path, the light folding with the imaging unit 23
The light direction of the launch of the unit 22 positioned at the lighting unit 21 is penetrated, the imaging unit 23 is located at the light path rear end, the photograph
The light that bright unit is launched is incided in the measuring samples on anaclasis unit 22, through entering the imaging unit after total reflection
23 imagings, the imaging unit connects described image processing unit, and described image processing unit is obtained to the imaging unit
Image carries out calculating treatment.
As shown in Fig. 2 the lighting unit 21 described in the present embodiment includes the first light source 210 and the first light source controlling mechanism,
First light source controlling mechanism is that the lower section of the working plate 10 is provided with fixed seat 211 and regulating block 212, the fixation
Seat 211 is arranged on the downside of the working plate 10, and the one end of the regulating block 212 is cut with scissors through bearing pin 213 with the fixed seat 211
Connect, the other end of the regulating block 212 is provided with first light source 210, the regulating block middle part is provided with the regulation spiral shell of up/down perforation
Pit, is provided with adjusting screw rod 214 in the regulation screwed hole, one end of the adjusting screw rod 214 acts against the working plate
10 downside on, the working plate for the regulating block 212 with bearing pin 213 for axle center rotates when motive power point is provided, it is described
The other end of adjusting screw rod 214 is provided with knob 215, and during turn knob 215, adjusting screw rod 214 cooperates with regulation screwed hole,
Adjusting screw rod is moved upwards, because the working plate is maintained static, now working plate will to regulating block apply one with
The opposite power of the adjusting screw rod direction of motion, enables regulating block with bearing pin 214 for axle center rotates.The fixed seat 211 with it is described
Back-moving spring 216 is provided between regulating block 212, the back-moving spring 216 can be provided to the work for the adjusting screw rod 214
Make the power that platen downside abuts, one end of the adjusting screw rod 214 is acted against on the working plate downside, improve this
The stability and certainty of measurement of invention all-in-one stress mornitoring, back-moving spring is preferably extension spring described in the present embodiment.First light
The setting of source governor motion, makes all-in-one of the present invention be only capable of achieving by turn knob 215 when measuring samples stress is detected
To the fine adjustments of the incident angle of the first light source 210, overall structure is not only simplified, improve the collection of the whole machine of all-in-one of the present invention
Cheng Du, and allow that the first light source incidence angle adjusts more flexibly, improve stress mornitoring precision of the present invention and detection
Efficiency.
Preferably, as shown in Figure 4, Figure 5, the regulating block of the one end of the first light source 210 described in the present embodiment
212 are provided with linear bearing 2120, and interior being provided with of the linear bearing 2120 can be along its sliding axle 2121 slidably, the cunning
Moving axis 2121 is provided with light source fixed seat 2100, and the light source fixed seat 2100 is provided with least one first light sources 210.By scheming
4 can be seen that the first light source 210 described in the present embodiment is provided with two, and the wavelength of two the first light sources is different from each other.This implementation
Example allows all-in-one of the present invention to be examined according to stress by setting at least one first light sources 210 in light source fixed seat 2100
The actual conditions of survey, select the light source of suitable wavelength, expand the scope of application of all-in-one of the present invention, improve stress of the present invention
The flexibility of detection.The first light source described in the present embodiment is LED array light source.First light source by using LED array light source,
The optical system of all-in-one stress mornitoring part of the present invention is not only optimized, overall structure, and the light that light source sends is simplified
Line brightness is high, homogeneous effect is good, improves the accuracy of detection of all-in-one of the present invention, while reducing manufacturing cost again.
As shown in figure 3, the anaclasis unit 22 described in the present embodiment is that prism platform 220 is provided with the workbench,
The middle part of the prism platform 220 is provided with the prism mounting hole 221 of up/down perforation, and isosceles Rhizoma Sparganii is provided with the prism mounting hole 221
Mirror 222, the bottom surface of the isosceles prism 222 slightly protrudes from the upper surface of prism mounting hole 221, and the measuring samples are placed
On the bottom surface of the isosceles prism 222.The light that first light source is launched by isosceles prism one of waist
Face is incided on the bottom surface of isosceles prism, is totally reflected with the contact surface of measuring samples in isosceles prism bottom surface, is all-trans
Light after penetrating is imaged by entering into the imaging unit 23 after another central plane outgoing of prism.May be used also by Fig. 3
To find out, the prism platform 220 described in the present embodiment is provided with suction hole 223, and the suction hole is distributed on the prism mounting hole
221 neighboring, the prism platform lower surface being engaged with the suction hole 221 is provided with aspirating hole（Not shown in figure）, prism platform
Air intake passage is provided between upper and lower surface, the suction hole is connected with the aspirating hole by the air intake passage, institute
State aspirating hole and air extractor is connected by exhaust pipe.Air extractor passes through aspirating hole, air intake passage, suction hole by measuring samples
Air between suction hole is evacuated, and because isosceles prism is within the vacuum that suction hole is surrounded, thus treats sample
Product can preferably fit with isosceles prism, even if measuring samples surface has certain warpage, it is also possible to by the present invention
Suction hole fits it with isosceles prism, improves the precision and efficiency of all-in-one stress mornitoring of the present invention.The present embodiment leads to
Cross and suction hole be arranged in prism platform, without being respectively provided with prism platform and air-breathing platform, not only simplify all-in-one overall structure,
It is reduced in size, reduces manufacturing cost, and improve the stability of all-in-one stress mornitoring of the present invention.
Imaging unit 23 described in the present embodiment is to be disposed with lens group, polarizer and image along the optical path direction
Sensor, the front end of the lens group is located at the light injection direction of the prism, the light that the prism is projected is converged, institute
The rear end for stating lens group is provided with polarizer, and the light after the polarizer converges the lens group is separated into relative to the prism
With the boundary face parallel vibrating and two kinds of light compositions of vertical vibration of the measuring samples, the rear end of the polarizer is provided with image
Sensor, the light that described image sensor will be received carries out opto-electronic conversion, by the brightness one by one of multiple pixels of pie graph picture
Value is used as DID output to image processing apparatus.Certainly, imaging unit can select dual-polarization of the prior art
Industrial camera, because this is existing mature technology, thus no longer describes in detail at this to it.It is noted that can be seen by Fig. 1
Go out, in the present embodiment, the imaging unit 23 by hinge on the downside of the working plate on, be easy to imaging unit
Angle be adjusted, to adjust suitable angle, light after total reflection is imaged into imaging unit.Imaging unit
23 connection graphics processing units（Not shown in figure）, described image processing unit counts to the image that the imaging unit is obtained
Calculation is processed, and graphics processing unit can be the all-purpose computer with data processing software, or dedicated data processor,
This is equally no longer described in detail.
As shown in fig. 6, the Quadratic Finite Element testing agency 30 described in the present embodiment includes being erected at the detection above working plate
Framework 31, detection framework 31 is provided with taking unit 32, and the taking unit is located at anaclasis unit top, the capture
32 pairs of measuring samples of unit carry out IMAQ, and the taking unit connects graphics processing unit（Not shown in figure）, institute
State graphics processing unit carries out calculating treatment to the image that the taking unit is collected.Institute can be seen that by Fig. 1, Fig. 6, Fig. 7
It is that multigroup camera 33 is provided with above the prism to state taking unit 32, and the camera 33 is provided with coaxial light source 34, the work
Make platen and be provided with reflecting element 35, the anaclasis unit is arranged on the reflecting element 35, and the reflecting element is to institute
The light that coaxial light source launches is stated to be reflected.For ease of production and processing, the reflecting element 35 can be the working plate
Upper side a part, now working plate upper side has light reflective, it is of course also possible on the working plate
Side sets independent reflecting element, such as level crossing.The light that coaxial light source 34 is launched incides reflector after measuring samples
Part 35, reaches the camera 33 above measuring samples after reflected element reflection, multigroup camera on measuring samples simultaneously to mutually hanging down
Straight two dimensional directions collection image, the image information that then will be collected is sent to graphics processing unit, by image procossing list
Unit synthesizes the two dimensional image of measuring samples according to image information, and the calculating of measuring samples Quadratic Finite Element is carried out finally according to two dimensional image
Treatment.The present embodiment provides light source by setting coaxial light source 35, and illumination evenly, improves two in making Quadratic Finite Element detection process
The precision of dimension detection.
It is noted that taking unit of the present invention can also be that multigroup camera is provided with above the prism, institute
State prism lower section and be provided with secondary light source, the light that the secondary light source sends enters the camera after the measuring samples on prism.
Light source uses transmissible optical source, is easy to be adjusted light intensity, improves ease for operation of the invention.
Preferably, the detection framework 31 described in the present embodiment is provided with guide post 36 and guide post regulation machine
Structure, the guide post governor motion is adjusted to the position of guide post 36, and the camera 33 is arranged on the guide post 36,
The guide post respectively sets one group along measuring samples side long, short side direction, is correspondingly arranged on the guide post of the long side direction
Three groups of cameras, are correspondingly arranged on two groups of cameras, that is to say, that along measuring samples long side direction on the guide post of the short side direction
One group of guide post on be correspondingly provided with three groups, totally six cameras, the sized image for gathering measuring samples broadside, along treating sample
Two groups, totally four cameras are correspondingly provided with one group of guide post of product short side direction, the dimensional drawing for gathering measuring samples side long
Picture.The present invention, can be simultaneously to measuring samples side long and short side two by setting five groups, ten cameras above measuring samples
Orthogonal dimensional directions gather image, improve detection efficiency and accuracy of detection.Meanwhile, five groups of cameras are separately mounted to lead
It is easy to operate on bar, being easy to guide post governor motion to be adjusted the position of camera.Guide post described in the present embodiment is adjusted
Section mechanism is that ball-screw and horizontal slide rail are provided with detection framework, and the horizontal slide rail is provided with horizontal slide, described to lead
It is arranged on the horizontal slide to bar, the nut of the ball-screw connects the horizontal slide.All-in-one of the present invention passes through
The running of ball-screw drives the guide post on horizontal slide to move back and forth along horizontal slide rail, so as to the camera on guide post
Position carries out accurate adjustment, improves all-in-one certainty of measurement of the present invention.Certainly, in order to measuring samples are tracked with management,
The detection all-in-one of stress Quadratic Finite Element described in the present embodiment also includes code printing mechanism 40, and the code printing mechanism 40 is arranged on described two
On the working plate 10 of the side of dimension testing agency 30,40 pairs of measuring samples for having detected stress and secondary metamessage of code printing mechanism
Stamp is carried out, because code printing mechanism 40 has had mature technology, be will not be repeated here.
It should be understood by those skilled in the art that the embodiments of the invention shown in foregoing description and accompanying drawing are only used as citing
And it is not intended to limit the present invention.The purpose of the present invention completely and is effectively realized.Function of the invention and structural principle exist
Show in embodiment and illustrate, under without departing from the principle, embodiments of the present invention can have any deformation or modification.
Claims (10)
1. a kind of stress Quadratic Finite Element detection all-in-one, including working plate, it is characterised in that working plate is provided with stress mornitoring
Mechanism and Quadratic Finite Element testing agency, the stress detection mechanism are arranged on working plate, and stress mornitoring is carried out to measuring samples,
The Quadratic Finite Element testing agency is erected at the stress detection mechanism top, and Quadratic Finite Element infomation detection is carried out to measuring samples.
2. stress Quadratic Finite Element according to claim 1 detects all-in-one, it is characterised in that described stress detection mechanism bag
Lighting unit, anaclasis unit, imaging unit, graphics processing unit are included, the lighting unit is located at institute with the imaging unit
State working plate lower section, the anaclasis unit be located at the working plate on, for place measuring samples, the lighting unit,
The anaclasis unit constitutes a light path with the imaging unit, and the light that the anaclasis unit is located at the lighting unit is sent out
Direction is penetrated, the imaging unit is located at the light path rear end, and the light that the lighting unit is launched is incided on anaclasis unit
Measuring samples in, be imaged into the imaging unit through after total reflection, imaging unit connection described image treatment is single
Unit, described image processing unit carries out calculating treatment to the image that the imaging unit is obtained.
3. stress Quadratic Finite Element according to claim 2 detection all-in-one, it is characterised in that described lighting unit includes the
One light source and the first light source controlling mechanism, first light source controlling mechanism are that the working plate lower section is provided with fixed seat
And regulating block, the fixed seat is arranged on working plate downside, and described regulating block one end is through bearing pin and the fixed seat
It is hinged, the regulating block other end is provided with first light source, the regulating block middle part is provided with the regulation screwed hole of up/down perforation,
Adjusting screw rod is provided with the regulation screwed hole, one end of the adjusting screw rod is acted against on the working plate downside, described
The other end of adjusting screw rod is provided with knob, and back-moving spring is provided between the fixed seat and the regulating block.
4. stress Quadratic Finite Element according to claim 3 detects all-in-one, it is characterised in that first described light source one end
Regulating block is provided with linear bearing, is provided with the linear bearing and can be set on the sliding axle along its sliding axle slidably
There is light source fixed seat, the light source fixed seat is provided with least one first light sources.
5. the stress Quadratic Finite Element detection all-in-one according to claim 3 or 4, it is characterised in that the first described light source is
LED array light source.
6. stress Quadratic Finite Element according to claim 2 detection all-in-one, it is characterised in that described anaclasis unit be
The working plate is provided with prism platform, and the prism platform middle part is provided with the prism mounting hole of up/down perforation, and the prism is installed
Isosceles prism is provided with hole, the bottom surface of the isosceles prism slightly protrudes from the prism mounting hole upper surface, described to be checked
Sample is placed on the bottom surface of the isosceles prism.
7. stress Quadratic Finite Element according to claim 2 detects all-in-one, it is characterised in that described imaging unit is along institute
State optical path direction and be disposed with lens group, polarizer and imageing sensor, the front end of the lens group is located at the anaclasis
The light of unit projects direction, and the light that the anaclasis unit is projected is converged, and the rear end of the lens group is provided with polarizer,
Light after lens group convergence is separated into the polarizer side relative to the anaclasis unit with the measuring samples
Interface parallel vibrating and two kinds of light compositions of vertical vibration, the rear end of the polarizer are provided with imageing sensor, and described image is passed
The light that sensor will be received carries out opto-electronic conversion, using the brightness value one by one of multiple pixels of pie graph picture as DID
Export graphics processing unit.
8. stress Quadratic Finite Element according to claim 2 detects all-in-one, it is characterised in that described Quadratic Finite Element testing agency
Including the detection framework being erected above working plate, detection framework is provided with taking unit, and the taking unit is located at described
Anaclasis unit top, the taking unit connects graphics processing unit.
9. stress Quadratic Finite Element according to claim 8 detects all-in-one, it is characterised in that the taking unit is described
Anaclasis unit top is provided with multigroup camera, and the camera is provided with coaxial light source, and the working plate is provided with reflecting element,
The anaclasis unit is arranged on the reflecting element, and the reflecting element is carried out instead to the light that the coaxial light source is launched
Penetrate.
10. stress Quadratic Finite Element according to claim 8 or claim 9 detects all-in-one, it is characterised in that in described detection framework
Guide post and guide post governor motion are provided with, the guide post governor motion is adjusted to the position of guide post, the orientation
Unit is arranged on the guide post, and the guide post respectively sets one group, the side side long along measuring samples side long, short side direction
To guide post on be correspondingly arranged on three groups of cameras, two groups of cameras are correspondingly arranged on the guide post of the short side direction.
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| CN106839983B (en) | 2024-01-02 |
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