CN110398424A - Device and method for testing the warping resistance intensity of flexible determinand - Google Patents
Device and method for testing the warping resistance intensity of flexible determinand Download PDFInfo
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- CN110398424A CN110398424A CN201910655950.0A CN201910655950A CN110398424A CN 110398424 A CN110398424 A CN 110398424A CN 201910655950 A CN201910655950 A CN 201910655950A CN 110398424 A CN110398424 A CN 110398424A
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- G—PHYSICS
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- 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
- G01N3/04—Chucks
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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
- G01N3/20—Investigating strength properties of solid materials by application of mechanical stress by applying steady bending forces
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Abstract
The present invention relates to flexible material performance testing device technical fields, more particularly to a kind of device and method for testing the warping resistance intensity of flexible determinand.Described device includes mounting base (3) and the first clamping device (1) and the second clamping device (2) for being installed on mounting base, first clamping device (1) and the second clamping device are oppositely arranged with the two sides for being respectively held against flexible determinand (5), wherein, first clamping device and/or the second clamping device are configured to mobile relative to mounting base so that the first clamping device and the second clamping device are close to each other, thus clamping and flexible determinand of the bending between the first clamping device and the second clamping device.This be used for test flexible determinand warping resistance intensity device by setting the first clamping device and the second clamping device come clamp with bending flexibility determinand, realize through mechanization means and measure the two o'clock bend test of flexible determinand, it is reproducible.
Description
Technical field
The present invention relates to flexible material performance testing device technical fields, flexible to be measured for testing more particularly to one kind
The device and method of the warping resistance intensity of object.
Background technique
With 5G network acceleration arrive, each big factory of mobile phone market gradually release flexible screen, foldable flexible screen it is high-end
Type.Currently, measuring the warping resistance performance of flexible determinand frequently with 3PB the and 4PB method of testing of universal testing machine.But
The common testing methods of above-mentioned universal testing machine cannot be used for the two o'clock bend test of flexible glass.Currently, the two of flexible glass
Point bend test is mainly by the way of manual testing, specifically, the pole of original adoption different-diameter tests flexibility respectively
The curvature of glass, bend-resistance result in flexible glass in warping resistance test vulnerable to the factors shadow such as manual operation is improper
It rings, and the artificial dynamics for firmly making flexible glass that bending occur and angle are uncontrollable every time, cause bending accuracy not high,
Operate poor repeatability.
Summary of the invention
It is of the existing technology curved because carrying out two o'clock using manual operation flexible glass the purpose of the invention is to overcome
The problems such as accuracy is high, poor repeatability caused by song test, it is strong to provide a kind of warping resistance for testing flexible determinand
The device and method of degree, this is used to test device of the warping resistance intensity of flexible determinand and passes through the first clamping device of setting and the
Two clamping devices come clamp with bending flexibility determinand, realize through mechanization means measure flexible determinand two o'clock it is curved
Song test, accuracy is high, reproducible.
To achieve the goals above, one aspect of the present invention provides a kind of for testing the warping resistance intensity of flexible determinand
Device, which is characterized in that described device includes mounting base and the first clamping device for being installed on the mounting base and the second folder
Mechanism is held, first clamping device and the second clamping device are oppositely arranged with the two sides for being respectively held against flexible determinand,
Wherein, first clamping device and/or second clamping device be configured to it is mobile relative to the mounting base so that
First clamping device and second clamping device are close to each other, thus clamping and bending be located at first clamping machine
The flexible determinand between structure and second clamping device.
Optionally, first clamping device is configured to relative to the mounting base along towards second clamping machine
The direction of structure is mobile, first clamping device include the first drive mechanism and for resisting the flexible determinand first
Clamping piece, the first end of first drive mechanism are fixedly installed in the mounting base, the second end of first drive mechanism
It is connect with described first clamping member, the second end of first drive mechanism is configured to edge towards second clamping device
Direction it is mobile relative to the first end, to drive first clamping member synchronizing moving.
Optionally, first drive mechanism is set as stretching structure；
And/or described first clamping member is provided with the extended along the moving direction perpendicular to first clamping device
The plate face towards second clamping device of one plate, first plate is provided with for accommodating and limiting the flexibility
First accommodating chamber of the side of determinand.
Optionally, second clamping device is configured to relative to the mounting base along towards first clamping machine
The direction of structure is mobile, second clamping device include the second drive mechanism and for resisting the flexible determinand second
Clamping piece, the first end of second drive mechanism are fixedly installed in the mounting base, the second end of second drive mechanism
It is connect with second clamping piece, the second end of second drive mechanism is configured to edge towards first clamping device
Direction it is mobile relative to the first end, to drive the second clamping piece synchronizing moving.
Optionally, second drive mechanism is set as stretching structure；
And/or second clamping piece is provided with the extended along the moving direction perpendicular to second clamping device
The plate face towards first clamping device of two plates, second plate is provided with for accommodating and limiting the flexibility
Second accommodating chamber of the side of determinand.
Optionally, the mounting base includes the side of movement along first clamping device and/or second clamping device
To the linear slide rail of setting, first clamping device and/or second clamping device are provided with and slide with the linear slide rail
The sliding block of dynamic connection.
Optionally, the mounting base includes parallel and spaced multiple linear slide rails, first clamping
Mechanism and/or second clamping device are provided with the multiple sliding blocks being correspondingly arranged with multiple linear slide rails.
Optionally, described device includes support cylinder, and the support cylinder can be along perpendicular to first clamping device
And/or second the moving direction of clamping device be removably disposed between first clamping device and the second clamping device,
Bending occurs to be used to support the flexible determinand.
Optionally, described device includes the different multiple support cylinders of diameter；
And/or described device includes the fixed frame for installing the support cylinder.
Optionally, described device includes the recording unit for recording the bending of the flexible determinand.
Second aspect of the present invention provides a kind of method for testing the warping resistance intensity of flexible determinand, the method
The flexible determinand can be measured using the device of the warping resistance intensity for testing flexible determinand, institute
State method the following steps are included:
S1: the flexible determinand is placed between first clamping device and the second clamping device；
S2: by first clamping device towards second clamping device is mobile and/or second clamping device court
It is mobile to first clamping device, with flexibility determinand described in clamping and bending.
Optionally, the flexible determinand is set as flexible display screen.
Through the above technical solutions, the device of the warping resistance intensity for being used to test flexible determinand passes through the first folder of setting
Hold mechanism and the second clamping device clamp with bending flexibility determinand, realize through mechanization means measure it is flexible to be measured
The two o'clock bend test of object, accuracy is high, reproducible.
Detailed description of the invention
Fig. 1 is provided by the invention a kind of for testing the front view of the device of the warping resistance intensity of flexible determinand；
Fig. 2 is the top view of device shown in FIG. 1；
Fig. 3 is the left view of device shown in FIG. 1；
Fig. 4 is the right view at A-A of device shown in FIG. 1；
The first plate and the second plate that Fig. 5 is device shown in FIG. 1 are in clamping and the initial shape of bending flexibility determinand
The schematic diagram of state；
The first plate and the second plate that Fig. 6 is device shown in FIG. 1 are in clamping and the final shape of bending flexibility determinand
The schematic diagram of state.
Description of symbols
1, the first clamping device；11, first clamping member；12, the first drive mechanism；13, the first telescopic rod；14, the first electricity
Machine；15, the first backboard；16, the first plate；17, the first accommodating chamber；18, sliding block；
2, the second clamping device；21, the second clamping piece；22, the second drive mechanism；23, the second telescopic rod；24, the second electricity
Machine；25, the second backboard；26, the second plate；27, the second accommodating chamber；
3, mounting base；31, linear slide rail；32, platform；33, first support；34, the first transmission base；35, the second transmission
Pedestal；36, support；37, nut；
4, cylinder is supported；5, flexible determinand.
Specific embodiment
Below in conjunction with attached drawing, detailed description of the preferred embodiments.It should be understood that this place is retouched
The specific embodiment stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
First aspect present invention provides a kind of for testing the device of the warping resistance intensity of flexible determinand, such as Fig. 1-6
Shown, described device includes mounting base 3 and the first clamping device 1 and the second clamping device 2 for being installed on the mounting base 3,
First clamping device 1 and the second clamping device 2 are oppositely arranged with the two sides for being respectively held against flexible determinand 5, wherein
First clamping device 1 and/or second clamping device 2 are configured to mobile so that institute relative to the mounting base 3
State the first clamping device 1 and second clamping device 2 be close to each other, thus clamping and bending be located at first clamping machine
The flexible determinand 5 between structure 1 and second clamping device 2.
Through the above technical solutions, the device of the warping resistance intensity for being used to test flexible determinand 5 passes through setting first
Clamping device 1 and the second clamping device 2 come clamp with bending flexibility determinand 5, realize through mechanization means measure it is soft
Property determinand two o'clock bend test, accuracy is high, favorable repeatability.
Further, first clamping device 1 is configured to press from both sides relative to the mounting base 3 along towards described second
The direction for holding mechanism 2 is mobile, and first clamping device 1 includes the first drive mechanism 12 and to be measured for resisting the flexibility
First clamping member 11 of object 5, the first end of first drive mechanism 12 are fixedly installed in the mounting base 3, and described first passes
The second end of dynamic structure 12 is connect with described first clamping member 11, and the second end of first drive mechanism 12 is configured to edge
It is mobile relative to the first end towards the direction of second clamping device 2, to drive described first clamping member 11 is synchronous to move
It is dynamic, by setting the first drive mechanism 12 and first clamping member 11 for the first clamping device 1, first clamping member is existed
It is moved under the drive of first drive mechanism 12, with the flexible determinand 5 of close and compression, human cost is saved, by the first transmission
The induced effect of structure 12 clamps the repeatability that flexible determinand 5 is tested to improve first clamping member 11.
As shown in Figs. 1-2, first drive mechanism 12 is set as stretching structure, in order to control the first drive mechanism 12
Moving direction it is constant always, and then ensure that the moving direction of first clamping member 11 also remains unchanged therewith.According to the present invention,
One drive mechanism 12 includes the first telescopic rod 13 and the first motor 14 that is mounted in mounting base 3, and the of the first telescopic rod 13
One end is connect with first motor, and the second end of the first telescopic rod 13 is connect with first clamping member 11, and first motor 14 is arranged to
The first telescopic rod 13 is driven to carry out stretching motion along the axis direction of the first telescopic rod 13, enough to drive first clamping member 11 same
Step movement, so that first clamping member 11 is able to carry out the movement close to or far from the second clamping device.
In order to guarantee that the side of flexible determinand 5 can be limited to all-the-time stable the specific location of first clamping member,
Described first clamping member 11 is provided with the first plate 16 extended along the moving direction perpendicular to first clamping device 1, institute
The plate face towards second clamping device 2 for stating the first plate 16 is provided with for accommodating and limiting the flexible determinand
First accommodating chamber 17 of 5 side.Further, the first clamping device includes the first backboard 15, the first plate of the first backboard 15
Face paste closes the plate face close to the first telescopic rod 13 that the first plate 16 is arranged in, and the second plate face of the first backboard 15 is flexible with first
The second end of bar 13 connects, so that the first telescopic rod 13 can provide more balanced impetus for the first plate 16, together
When improve installation reliability between the first telescopic rod 13 and the first plate 16.Wherein, the first backboard 15 and the first telescopic rod
Various reasonable connection types can be used between 13, for example, connecting using bolt and nut 37.
Further, second clamping device 2 is configured to press from both sides relative to the mounting base 3 along towards described first
The direction for holding mechanism 1 is mobile, and second clamping device 2 includes the second drive mechanism 22 and to be measured for resisting the flexibility
Second clamping piece 21 of object 5, the first end of second drive mechanism 22 are fixedly installed in the mounting base 3, and described second passes
The second end of dynamic structure 22 is connect with second clamping piece 21, and the second end of second drive mechanism 22 is configured to edge
It is mobile relative to the first end towards the direction of first clamping device 1, to drive second clamping piece 21 is synchronous to move
It is dynamic, by above-mentioned set-up mode, the second clamping piece is moved, under the drive of the second drive mechanism 22 with close and pressure
Tight flexibility determinand 5, saves human cost, by the induced effect of the second drive mechanism 22 to improve the clamping of the second clamping piece 21
The repeatability that flexible determinand 5 is tested.
As shown in Figs. 1-2, second drive mechanism 22 is set as stretching structure, in order to control the second drive mechanism 22
Moving direction it is constant always, and then ensure that the moving direction of the second clamping piece 21 also remains unchanged therewith.According to the present invention,
Two drive mechanisms 22 include the second telescopic rod 23 and the second motor 24 for being mounted in mounting base 3, and the of the second telescopic rod 23
One end is connect with the second motor, and the second end of the second telescopic rod 23 is connect with the second clamping piece 21, and the second motor 24 is arranged to
The second telescopic rod 23 is driven to carry out stretching motion along the axis direction of the second telescopic rod 23, enough to drive the second clamping piece 21 same
Step movement, so that the second clamping piece 21 is able to carry out the movement close to or far from the first clamping device.
In order to guarantee that the side of flexible determinand 5 can be limited to all-the-time stable the specific location of the second clamping piece,
Second clamping piece 21 is provided with the second plate 26 extended along the moving direction perpendicular to second clamping device 2, institute
The plate face towards first clamping device 1 for stating the second plate 26 is provided with for accommodating and limiting the flexible determinand
Second accommodating chamber 27 of 5 side.Further, the second clamping device includes the second backboard 25, the first plate of the second backboard 25
Face paste closes the plate face close to the second telescopic rod 23 that the second plate 26 is arranged in, and the second plate face of the second backboard 25 is flexible with second
The second end of bar 23 connects, so that the second telescopic rod 23 can provide more balanced impetus for the second plate 26, together
When improve installation reliability between the second telescopic rod 23 and the second plate 26.It is noted that in order to intelligence
The movement of the first clamping device and the second clamping device is controlled, which includes control unit, the control unit and first motor
Electrical connection to control the driving force of first motor output, and then controls the stretching speed and collapsing length of the first telescopic rod, and
And the control unit is also electrically connected with the second motor, to control the driving force of the second motor output, and then controls the second telescopic rod
Stretching speed and collapsing length.
In order to improve the first clamping device 1 and/or the second clamping device 2 moving direction the linearity, to ensure to test
The repeatability of operation, the mounting base 3 include moving along first clamping device 1 and/or second clamping device 2
The linear slide rail 31 of direction setting, first clamping device 1 and/or second clamping device 2 be provided with it is described linear
The sliding block 18 that sliding rail 31 is slidably connected is conducive to control the first clamping device 1 and/or the second clamping device 2 always can be along this
The extending direction of linear slide rail 31 is mobile.Wherein, as shown in Figures 3 and 4, linear slide rail 31 and sliding block 18 can be set to various conjunctions
The form of reason, for example, the cross section of linear slide rail 31 is set as " I " type, sliding block is provided with the groove that cross section is T-shape, line
The top of property sliding rail 31 accommodates and is connected in the groove of sliding block 18, and the bottom of linear slide rail 31 can be by welding or being spirally connected
In first support 33.
In order to enable the first clamping device 1 and/or the linearity of the second clamping device 2 movement are higher, it can be according to reality
Multiple linear slide rails 31 are arranged in the difference of demand.For example, the mounting base 3 includes parallel and spaced multiple lines
It is right with multiple linear slide rails 31 that property sliding rail 31, first clamping device 1 and/or second clamping device 2 are provided with
The multiple sliding blocks 18 that should be arranged.Some specific embodiments according to the present invention, as shown in Fig. 2, mounting base 3 includes two
Linear slide rail 31 and multiple sliding blocks 18, when the first clamping device is mounted in mounting base 3, the first backboard 15 is shown in Fig. 2
Width in up and down direction is greater than the width of the first plate 16, and as illustrated in fig. 1 and 2, multiple sliding blocks 18 are separately mounted to the first back
The two sides of the bottom wall of plate 15, in addition, the second clamping device is in the mounting structure of mounting base 3 and the mounting structure of the first clamping device
It is similar, therefore repeat no more.Further, mounting base 3 includes platform 32, first support 33, the first transmission base 34, second biography
Dynamic pedestal 35 and support 36, wherein support 36, which is used to support, is set as shown in Figure 2 rectangular with fixed platform 32, platform 32
Shape plate is fixedly installed with the first support 33 of the longitudinal direction setting along platform on platform 32 and the short of platform 32 is arranged in
The first transmission base 34 and the second transmission base 35 of avris, the first transmission base 34 is for installing first motor, the second transmission
Pedestal 35 is set as illustrated in fig. 1 and 2 parallel to each other and spaced two for installing the second motor, first support 33
Group frame body, and is fixedly installed with linear slide rail 31 above each frame body, so the device be formed with it is parallel to each other and
Every two groups of linear slide rails 31, also, the center line that mounting base 3 extends about platform along the longitudinal direction of platform is axisymmetricly
Structure, the center line that mounting base 3 extends about platform along the short side direction of platform axisymmetricly structure；Further,
The center line that one clamping device and the second clamping device extend about the short side direction along platform of platform axisymmetricly structure, the
The plate face that one plate and the second plate are each perpendicular to platform extends mode and is arranged.
In order to more accurately test the bend-resistance performance of flexible determinand, it can use for reference and manually be surveyed using pole
The curvature and bend-resistance performance for trying flexible determinand can use in order to determine the warping resistance performance of the flexibility determinand
Support cylinder 4 carrys out subtest.For example, the support cylinder 4 can as it can be seen in figures 5 and 6, described device includes support cylinder 4
First folder is removably disposed in along the moving direction perpendicular to first clamping device 1 and/or the second clamping device 2
It holds between mechanism 1 and the second clamping device 2, bending occurs to be used to support the flexible determinand 5, is filled by above-mentioned test
It sets, for traditional artificial test method using pole, in the reliability and reliability for ensuring test data
Under the premise of, the labor intensity and testing efficiency of tester are reduced, test process is enormously simplified, it is easy to operate.
Further, described device includes the different multiple support cylinders 4 of diameter, optimizes the accurate of test data
Degree；Described device includes the fixed frame for installing the support cylinder 4, convenient for the position of fixed support cylinder 4, so that branch
Enough supporting roles can be provided when bending occurs for flexible determinand 5 by holding round column 4.
Further, described device includes the recording unit for recording the bending of the flexible determinand 5.Wherein, remember
Record unit can be set to various proper forms, for example, recorded by the way of taking pictures or shooting, then recording unit is correspondingly
Be set as camera or video camera, and the recording unit may be mounted in mounting base 3 and be configured to record as
The bending state of flexible determinand observed by under visual angle shown in Figures 5 and 6.
Second aspect of the present invention provides a kind of method for testing the warping resistance intensity of flexible determinand, and feature exists
In the method can be using the device of the warping resistance intensity for testing flexible determinand to the flexible determinand
5 measure, and the described method comprises the following steps:
S1: the flexible determinand 5 is placed between first clamping device 1 and the second clamping device 2；
S2: by first clamping device 1 towards second clamping device 2 is mobile and/or second clamping device 2
It is mobile towards first clamping device 1, with flexibility determinand 5 described in clamping and bending.
Through the above technical solutions, the method for the warping resistance intensity for being used to test flexible determinand 5 passes through the first clamping
Mechanism 1 and the second clamping device 2 come clamp with bending flexibility determinand 5, realize through mechanization means measure it is flexible to
The two o'clock bend test of object is surveyed, accuracy is high, favorable repeatability.
Further, the flexible determinand 5 is set as flexible display screen, for example, flexible glass.Wherein, for surveying
Under the clamping and test that try the device of the warping resistance intensity of flexible determinand, the bending angle and bending times of flexible glass can be with
Various zone of reasonableness are set as, for example, bending angle can be set to 0 ° -180 °, wherein when bending angle is 0 °, flexible glass
In nature, (flexible glass is in the two sides difference of clamp position to glass with the first clamping device 1 and the second clamping device 2 respectively
It is set as the first side and second side, wherein the first side and second side are in same plane, at this point, the first clamping device 1 and the second folder
Hold that mechanism 2 is not close to each other, and bending does not also occur correspondingly for flexible glass), when bending angle is 180 °, flexible determinand
5 two sides clamped respectively by the first clamping device 1 and the second clamping device 2 are in close up state (the first clamping device 1 and second
Clamping device 2 is close to each other until the first side and second side that make flexible glass are bonded each other)；The folding of the flexible glass
Curved number can be set at 50,000 times or so.
Embodiment 1
Step 1: selection prepares flexible determinand 5 as test specimen, by flexible determinand 5 be fixed on the first plate and
It is formed by grasping part between second plate.
Step 2: according to the specification of flexible determinand 5, presetting the bending distance of flexible determinand 5 (that is, distance between plates
D), so that flexible determinand 5 is capable of forming and remains static buckling shape as shown in Figure 5.Wherein, bending distance refers to
It is the relative movement displacement between the first plate 16 and the second plate 26.
Step 3: start to test: first motor 14 drives the first telescopic rod 13 dextrad shown in Fig. 1 and 2 to move, simultaneously
Second motor 24 drives the second telescopic rod 23 left-hand shown in Fig. 1 and 2 to move, so that the first plate 16 and the second plate 26
The speed that can be set along the extending direction of linear slide rail 31 is close to each other, until the first plate 16 and the second plate 26 move
It moves to making flexible determinand 5 be formed and be remained and as shown in FIG. 6 tightly fits in selected first support cylinder 4
Periphery wall bending state until, when flexible determinand 5 under above-mentioned bending state in it is static when, record first branch
The distance between plates D between the radius R value (that is, radius bend R) and the first plate 16 and the second plate 26 of column 4 is held round (that is, folding
Bending moment from).
Step 4: selecting the support cylinder (for example, support cylinder of R20, R18, R16, R12, R10) of different-diameter, successively
The test operation of step 3 is repeated, and correspondingly records and arranges the radius R value measured corresponding to each support cylinder 4 and plate
Between distance D, also, calculate K value, wherein K=R/D.Specific analysis result is as shown in table 1 below, can obtain from table 1: K
=0.43.
Above-mentioned test result shows: the minimum radius bend R in test is not the half of simple distance between plates D, this
It is primarily due to that perfect semicircle can not be formed when flexible determinand 5 is in static buckling state in the test device.
Therefore, in order to test the radius bend R value of different flexible determinands 5, different distance between plates D can suitably be calculated.
1 test result of table
Embodiment 2
Step 1: selection prepares flexible determinand 5 as test specimen, by flexible determinand 5 be fixed on the first plate and
It is formed by grasping part between second plate.
Step 2: according to the specification of flexible determinand 5, presetting the bending distance of flexible determinand 5 (that is, distance between plates
D), so that flexible determinand 5 is capable of forming and remains static buckling shape as shown in Figure 5.Wherein, bending distance refers to
It is the relative movement displacement between the first plate 16 and the second plate 26.
Step 3: start to test: first motor 14 drives the first telescopic rod 13 dextrad shown in Fig. 1 and 2 to move, simultaneously
Second motor 24 drives the second telescopic rod 23 left-hand shown in Fig. 1 and 2 to move, so that the first plate 16 and the second plate 26
The speed that can be set along the extending direction of linear slide rail 31 is close to each other, until the first plate 16 and the second plate 26 move
It moves to making flexible determinand 5 be formed and be remained and as shown in FIG. 6 tightly fits in selected first support cylinder 4
Periphery wall bending state until, when flexible determinand 5 under above-mentioned bending state in it is static when, pass through recording unit
(for example, in a manner of taking pictures) records the flexible determinand 5 under the bending state.
Step 4: under the driving of first motor 14, the first telescopic rod 13 drives the first plate left-hand shown in Fig. 1 and 2
It is mobile, while the second motor 24 drives the second telescopic rod 23 dextrad shown in Fig. 1 and 2 to move, so that the first plate and the
Two plates return to step 3 and start the original position before test, so as to complete primary test.
Step 5: by setting different bending distances (that is, distance between plates D) in step 2, being repeated in step 2-4's
Operation, and image information of each bending apart from corresponding record is correspondingly recorded and arranges, and the image that will be recorded
Information imports in CAD, the maximum curvature circle of flexible determinand 5 is fitted by the way of three strokes and dots circles, then with the survey in CAD
The curvature radius of circle of the distance to two parallel-plates and maximum curvature measures amount tool respectively；Then, by distance between plates D
The test result of the radius r (that is, radius bend) of (that is, bending distance) and fitting circle compares and analyzes, and finds out between the two
Conversion coefficient x, wherein x=r/D, specific result of analyzing is as shown in table 2 below, and x value can be obtained from table 2, that is, x's is flat
Mean value is 0.43.
2 test result of table
According to embodiment 1 and embodiment 2 as can be seen that radius bend and bending distance are there is fixed conversion coefficient,
Therefore, in test, as long as radius bend can be calculated by conversion coefficient by measuring known size of the test board away from D.
The device provided by the invention can be suitable for loop test, in test flexible display screen or other flexible materials
Warping resistance intensity when, flexible determinand 5, which may be set as needing to undergo, to be repeated bending and carries out loop test, therefore, it is flexible to
Object 5 (for example, flexible display) is surveyed to be required to bear to be repetitively folded, it can be with bending in order to pass through the flexible determinand of test
Cycle-index ensures suitable service life of device.For example, in order to test the circulation bending durability of flexible determinand 5, by first
The initial value of bending distance D between plate and the second plate is redefined for 20mm, so that under the initial bending distance
So that flexible determinand is formed as curved shape as shown in Figure 1, then in the case where keeping parallelism mobile first plate and
Second plate so that distance between plates between the two is contracted to target range, and keeps about 1s under the target range,
Then restore to keep about 1s in the state of being 20mm to initial distance between plates D, thus terminate a circulation, wherein first
Plate and the second plate may be configured as mobile with the rate of 20-40mm/s；Then, repetitive cycling, until flexible determinand loses
Effect, and calculate lower global cycle number.Target radius bend that in testing, target range can test according to actual needs (R,
Alternatively, r) changing.By Examples 1 and 2 it is found that target radius bend (R, alternatively, r) being equal to 0.43 times of distance between plates D.Cause
This can test out minimum radius bend (R, alternatively, r) by changing distance between plates D.By repeatedly implementing test target folding
The circulation experiment of curved radius can choose the suitable flexible determinand for the requirement for meeting terminal client.
By taking flexible determinand is set as flexible glass workpiece as an example, wherein some flexible glass workpiece setting is 0.07mm
Thickness, it is specific strengthen after CS value (that is, surface stress value) in 500-750MPa and DOL values at 10-14 μm, and 10mm's
More than 250000 times bending cycles can be born at target distance between plates D；Some flexible glass workpiece is 0.07mm thick, specific to strengthen
CS value (surface stress value) afterwards in 500-750MPa and DOL values at 10-14 μm, and in the target distance between plates D of 88mm
Place can bear more than 250000 times bending cycles.Therefore, it for flexible display apparatus, is confirmed as by more than 250000 times
Bending cycle is the suitable service life.
It is described the prefered embodiments of the present invention in detail above in conjunction with attached drawing, still, the present invention is not limited thereto.At this
It, can be with various simple variants of the technical solution of the present invention are made, in order to avoid unnecessary in the range of the technology design of invention
It repeats, the invention will not be further described in various possible combinations.But these simple variants and combination equally should be considered as
Content disclosed in this invention, all belongs to the scope of protection of the present invention.
Claims (12)
1. a kind of for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described device includes mounting base
(3) the first clamping device (1) and the second clamping device (2) of the mounting base (3), first clamping device are installed on and
(1) it is oppositely arranged with the second clamping device (2) with the two sides for being respectively held against flexible determinand (5), wherein first folder
Hold mechanism (1) and/or second clamping device (2) be configured to it is mobile relative to the mounting base (3) so that described the
One clamping device (1) and second clamping device (2) are close to each other, thus clamping and bending be located at first clamping machine
The flexible determinand (5) between structure (1) and second clamping device (2).
2. according to claim 1 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
First clamping device (1) is configured to move relative to the mounting base (3) along the direction towards second clamping device (2)
It is dynamic, first clamping device (1) include the first drive mechanism (12) and for resisting the flexible determinand (5) first
The first end of clamping piece (11), first drive mechanism (12) is fixedly installed in the mounting base (3), the first transmission knot
The second end of structure (12) is connect with described first clamping member (11), and the second end of first drive mechanism (12) is configured to
Edge is mobile relative to the first end towards the direction of second clamping device (2), to drive described first clamping member (11)
Synchronizing moving.
3. according to claim 2 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
First drive mechanism (12) is set as stretching structure；
And/or the first clamping member (11) is provided with along the moving direction extension perpendicular to first clamping device (1)
First plate (16), the plate face towards second clamping device (2) of first plate (16) are provided with for accommodating simultaneously
And limit the first accommodating chamber (17) of the side of the flexible determinand (5).
4. according to claim 1 for testing the device of the warping resistance intensity of flexible determinand described in any one of -3,
It is characterized in that, second clamping device (2) is configured to relative to the mounting base (3) along towards first clamping machine
The direction of structure (1) is mobile, second clamping device (2) include the second drive mechanism (22) and for resist it is described it is flexible to
Second clamping piece (21) of object (5) is surveyed, the first end of second drive mechanism (22) is fixedly installed in the mounting base (3),
The second end of second drive mechanism (22) is connect with second clamping piece (21), and the of second drive mechanism (22)
Two ends are configured to edge towards the direction of first clamping device (1) relative to first end movement, described in driving
Second clamping piece (21) synchronizing moving.
5. according to claim 4 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
Second drive mechanism (22) is set as stretching structure；
And/or second clamping piece (21) is provided with along the moving direction extension perpendicular to second clamping device (2)
Second plate (26), the plate face towards first clamping device (1) of second plate (26) are provided with for accommodating simultaneously
And limit the second accommodating chamber (27) of the side of the flexible determinand (5).
6. according to claim 1 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
Mounting base (3) includes the line along the setting of the moving direction of first clamping device (1) and/or second clamping device (2)
Property sliding rail (31), first clamping device (1) and/or second clamping device (2) are provided with and the linear slide rail
(31) sliding block (18) being slidably connected.
7. according to claim 6 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
Mounting base (3) includes parallel and spaced multiple linear slide rails (31), first clamping device (1) and/or
Second clamping device (2) is provided with the multiple sliding blocks (18) being correspondingly arranged with multiple linear slide rails (31).
8. according to claim 7 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
Device includes support cylinder (4), and the support cylinder (4) can press from both sides along perpendicular to first clamping device (1) and/or second
The moving direction for holding mechanism (2) is removably disposed between first clamping device (1) and the second clamping device (2), with
It is used to support the flexible determinand (5) and bending occurs.
9. according to claim 8 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that described
Device includes the different multiple support cylinders (4) of diameter；
And/or described device includes the fixed frame for installing support cylinder (4).
10. according to claim 6 for testing the device of the warping resistance intensity of flexible determinand, which is characterized in that institute
Stating device includes the recording unit for recording the bending of the flexible determinand (5).
11. a kind of method for testing the warping resistance intensity of flexible determinand, which is characterized in that the method can use root
According to the device of the warping resistance intensity described in any one of claim 1-10 for testing flexible determinand to the flexibility
Determinand (5) measures, and the described method comprises the following steps:
S1: the flexible determinand (5) is placed between first clamping device (1) and the second clamping device (2)；
S2: by first clamping device (1) towards second clamping device (2) is mobile and/or second clamping device
(2) mobile towards first clamping device (1), with flexibility determinand (5) described in clamping and bending.
12. the method according to claim 11 for testing the warping resistance intensity of flexible determinand, which is characterized in that institute
It states flexible determinand (5) and is set as flexible display screen.
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| CN201910655950.0A CN110398424A (en) | 2019-07-19 | 2019-07-19 | Device and method for testing the warping resistance intensity of flexible determinand |
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Application publication date: 20191101 Assignee: Henan Xuyang Photoelectric Technology Co.,Ltd. Assignor: Mianyang Junwei Technology Co.,Ltd. Contract record no.: X2021990000020 Denomination of invention: Device and method for testing bending strength of flexible object to be tested License type: Common License Record date: 20210111 Application publication date: 20191101 Assignee: Hebei Guangyang Electronic Technology Co.,Ltd. Assignor: Mianyang Junwei Technology Co.,Ltd. Contract record no.: X2021990000019 Denomination of invention: Device and method for testing bending strength of flexible object to be tested License type: Common License Record date: 20210111 |
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