CN205426690U - Bending test device - Google Patents
Bending test device Download PDFInfo
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- CN205426690U CN205426690U CN201620224646.2U CN201620224646U CN205426690U CN 205426690 U CN205426690 U CN 205426690U CN 201620224646 U CN201620224646 U CN 201620224646U CN 205426690 U CN205426690 U CN 205426690U
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Abstract
An embodiment of the utility model provides a bending test device relates to measurement, test technical field, can accurately record the bending angle that the flexibility awaited measuring. This bending test device includes articulated left socle and right branch frame, and left socle and right branch frame are used for respectively fixing the both sides that the flexibility awaited measuring, bending test device still includes the drive arrangement who is connected with left socle and/or right branch frame to under drive arrangement's drive, the left socle is close to or deviates from the right branch frame, so that the flexible piece that awaits measuring is crooked to the articulated position department of left socle and right branch frame at the in -process of test.
Description
Technical field
This utility model relates to measurement, technical field of measurement and test, particularly relates to a kind of bend testing apparatus.
Background technology
Flexible screen is a kind of bending deformed display screen of shape, this flexible screen is for conventional screen, not only volume is little, lightweight, the most also there is the advantages such as low in energy consumption, ruggedness good, suppleness is high, applied range, flexible screen the most gradually substitutes common screen at present, becomes the inexorable trend of following display device development.
The feature that flexible screen is the most prominent is exactly its bending deformed characteristic, and the bendable curvature of flexible screen and resistance to bend(ing) are the important indicators of checking flexible screen quality, so for the quality detecting flexible screen flexural property, it is necessary to flexible screen is curved test.
The most conventional flexible screen bend testing apparatus is as shown in fig. le, usually arrange fixture in one end of flexible screen 31, lower section arranges reference test bar 60, it is movable end C for fixing end B, the other end that flexible screen 31 is provided with one end of fixture, the movable end C of flexible screen 31 rotates according to direction shown in arrow in figure centered by the reference test bar 60 of lower section, flexible screen 31 is bent around reference test bar 60, flexible screen 31 surface curvature angle is made to be gradually increased, it is achieved the flexibility of flexible screen 31 is tested.
But, during test, the rotation of movable end is usually manual operation, and the angle of bend of flexible screen cannot be learnt by accurately measuring, and angle of bend estimate and estimated and inaccurate make that the flexibility test number for flexible screen is inaccurate, error is bigger by operator.
Utility model content
Embodiment of the present utility model provides a kind of bend testing apparatus, it is possible to accurately record the angle of bend of flexible part to be measured.
For reaching above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that
This utility model embodiment provides a kind of bend testing apparatus, including hinged left socle and right support, left socle and right support for being fixed the both sides of flexible part to be measured respectively.Bend testing apparatus also includes the driving means being connected with left socle and/or right support, and under the driving of driving means, left socle is close or deviates from right support, so that flexible part to be measured bends during test at the articulated position of left socle and right support.
Further, above-mentioned bend testing apparatus also includes base, and the lower end that base is provided with guide rail, left socle and right support is mounted in guide rail.
Further, above-mentioned driving means includes hydraulic cylinder, and the piston rod of hydraulic cylinder is connected with described left socle and/or described right support.
Further, the driving means of above-mentioned bend testing apparatus includes the gear that motor is connected, and the tooth bar being meshed with gear with motor output shaft；Tooth bar is also connected with left socle and/or right support.
Further, the left socle of above-mentioned bend testing apparatus and the upper part of right support have comb structure, described comb structure is used for fixing described flexibility part to be measured, and the comb of left socle is arranged in a crossed manner with the comb of right support, and left socle and right support are hinged at crossover location.
Preferably, in the comb structure of above-mentioned bend testing apparatus, the spacing of adjacent two comb is 8mm～10mm.
Further, the left socle of above-mentioned bend testing apparatus and right support are tabular, and left socle and the top of right support or bottom hinged.
Further, the left socle of above-mentioned bend testing apparatus and at least side of right support are provided with additional frame, and during so that being launched by additional frame, additional frame and left socle are positioned at approximately the same plane, or additional frame is positioned at approximately the same plane with right support.
Preferably, the additional frame width of above-mentioned bend testing apparatus is left socle or the 1/2 of right support width.
Further, the left socle of above-mentioned bend testing apparatus and right support have clamping part, and the dual-side of flexible part to be measured is fixed on left socle and right support by clamping part respectively.
Preferably, the clamping part of above-mentioned bend testing apparatus is clip.
This utility model provides a kind of bend testing apparatus to include, and hinged left socle and right support, left socle and right support are for being fixed the both sides of flexible part to be measured respectively.Bend testing apparatus also includes the driving means being connected with left socle and/or right support, and under the driving of driving means, left socle is close or deviates from right support.
Owing to being individually fixed on hinged left socle and right support the both sides of flexible part to be measured, therefore, when driving means drives left socle close or deviates from right support motion, flexible part to be measured can bend at the articulated position of left socle and right support.So, on the one hand, the angle at articulated position is equal or approximately equal the angle of flexible part to be measured generation bending with left socle and right support.Therefore, it can by the angle at above-mentioned articulated position being measured the bending angle drawing flexible part to be measured.Such that it is able to avoid by range estimation, prior art estimates that the angle of bend of flexible part to be measured causes the problem that crooked test error in data is bigger, improve accuracy and the credibility of flexibility test result.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is only embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of bend testing apparatus that Fig. 1 a provides for this utility model embodiment；
The structural representation of the second bend testing apparatus that Fig. 1 b provides for this utility model embodiment；
The structural representation of the third bend testing apparatus that Fig. 1 c provides for this utility model embodiment；
Fig. 1 d is arranged on the embodiment structural representation outside left socle 10 and right support 20 for the driving means 40 that this utility model embodiment provides；
Fig. 1 e is the structural representation of the flexible screen bend testing apparatus of prior art；
The bend testing apparatus of a kind of driving means 40 that Fig. 2 a provides for this utility model embodiment is initial/reset view；
Fig. 2 b is base 50 and the top view of driving means 40 in Fig. 2 a；
Fig. 2 c is that flexible part 30 to be measured is bent maximum rating schematic diagram by the bend testing apparatus of Fig. 2 a；
Fig. 2 d is the schematic diagram replacing another kind of driving means 40 in Fig. 2 c；
Fig. 3 a is the structural representation of a kind of left socle 10 in Fig. 2 d with direction of arrow left view；
Fig. 3 b is the structural representation of the another kind of left socle 10 in Fig. 2 d with direction of arrow left view.
Reference
10-left socle；20-right support；101-body frame；The additional frame of 102-；11-comb structure；12-clamping part；20-right support；The flexible part to be measured of 30-；31-flexible screen；40-driving means；401-hydraulic cylinder；4011-cylinder barrel；4012-piston rod；402-motor；403-pinion and rack；4031-gear；4032-tooth bar；50-base；501-guide rail；60-reference test bar；A-articulated position；The fixing end of B-flexible screen 31；The movable end of C-flexible screen 31；Predetermined angle between α-left socle 10 and right support 20；The angle of bend of β-flexible part 30 to be measured；Initial distance between L1-left socle 10 and right support 20；The flexible part 30 to be measured of L2-forms left socle 10 and the distance of right support 20 after angle of bend；Body frame 101 width of H1-left socle 10 or right support 10；The width of the additional frame of H2-102.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
This utility model provides a kind of bend testing apparatus, as shown in Figure 1a, including hinged left socle 10 and right support 20, left socle 10 and right support 20 are for being fixed the both sides of flexible part 30 to be measured respectively, also include the driving means 40 being connected with left socle 10 and/or right support 20, under the driving of driving means 40, left socle 10 is close or deviates from right support 20, so that flexible part to be measured 30 bends during test at articulated position A of left socle 10 and right support 20.
Wherein, this flexible part 30 to be measured can be that flexible screen other can also have the flexible platelet of bendability characteristics for fexible film etc., and this is not limited by this utility model, but within falling within protection domain of the present utility model.
It should be noted that left socle 10 and right support 20 in this utility model embodiment are hinged and refer to, left socle 10 and right support 20 intersect and arrange, and are connected in articulated manner in the point of intersection of left socle 10 with right support 20.Hinged left socle 10 and right support 20 have predetermined angle α.
Concrete, above-mentioned left socle 10 and the setting of right support 20 articulated position A, as Fig. 1 a articulated position A can be arranged at left socle 10 and the middle part of right support 20.In the case, flexible part to be measured 30 can be arranged on left socle 10 and the top of right support 20 articulated position A, it is also possible to is arranged on left socle 10 and the lower section of right support 20 articulated position A.As long as ensure that in test process, flexible part 30 to be measured bends at articulated position A.
Or, as shown in Figure 1 b, articulated position A can be arranged at left socle 10 and the upper end of right support 20.In the case, flexible part to be measured 30 is arranged on left socle 10 and the lower section of right support 20 articulated position A.
Or, as illustrated in figure 1 c, articulated position A can be arranged at left socle 10 and the lower end of right support 20.In the case, flexible part to be measured 30 is arranged on left socle 10 and the top of right support 20 articulated position A.And driving means 40 can be fixed at left socle 10 and/or right support 20 apical position by the support means such as ground supports or hoisting bracket and work.
From the above, it is seen that in the articulated manner shown in Fig. 1 a and Fig. 1 c, owing to flexible part 30 to be measured is arranged on left socle 10 and the top of right support 20 articulated position A, therefore, it is possible to facilitate the installation and removal of flexible part to be measured 30.On this basis, owing in the articulated manner shown in Fig. 1 c, driving means 40 needs be fixed on left socle 10 and/or right support 20 top by the support means such as ground supports or hoisting bracket, and in the articulated manner shown in Fig. 1 a, driving means 40 can be arranged at left socle 10 and/or right support 20 bottom.Such as, when this bend testing apparatus has base 50 as shown in Figure 2 a, driving means 40 can be installed on above-mentioned base 50.In sum, the articulated manner shown in Fig. 1 a had both been easy to the installation of flexible part to be measured 30, the most beneficially installation of driving means 40.It is therefore preferable that articulated position A can be arranged at left socle 10 and the middle part of right support 20, and flexible part to be measured 30 is arranged on left socle 10 and the top of right support 20 articulated position A.
Wherein, herein " on ", D score, the directional terminology such as " left " and " right " be to illustrate that the orientation put defines relative to the bend testing apparatus in accompanying drawing, it is to be understood that, these directional terminology are relative concepts, they for relative to description and clarification, it correspondingly can change according to the change in the orientation that bend testing apparatus is placed.
On this basis, drive left socle 10 close to realize driving means 40 or deviate from right support 20, above-mentioned driving means 40 can be as shown in Figure 1a, it is installed only in one of them of left socle 10 or right support 20, can also be separately mounted to as shown in Figure 1 d on left socle 10 and right support 20, with each self-driven left socle 10 and right support 20 towards or away from from motion.
Additionally, above-mentioned driving means 40 can be installed on left socle 10 and deviate from the side of right support 20, and/or right support 20 deviates from the side of left socle as shown in Figure 1a.So, when driving means 40 is connected with left socle 10, driving means 40 can push left socle 10 and inwardly receive so that the flexibility part to be measured 30 being arranged on left socle 10 and right support 20 bends, or pulls out left socle 10 and make flexible part to be measured 30 recover original shape.So, in the reciprocating motion of driving means 40, so that flexible part to be measured 30 constantly bends, test with the bending performance to flexible part 30 to be measured.
Or, above-mentioned driving means 40 can also be arranged between left socle 10 and right support 20 as shown in Figure 1 b.So, when driving means 40 is connected with left socle 10, left socle 10 can be pulled inwardly to receive for driving means 40 so that the flexibility part to be measured 30 being arranged on left socle 10 and right support 20 bends, or outwards propelling movement left socle 10 makes flexible part to be measured 30 recover original shape, thus flexible part to be measured 30 is made constantly to bend in the reciprocating motion of driving means 40.
But, owing to driving means 40 self has certain width, so driving means 40 is arranged between left socle 10 and right support 20, when above-mentioned flexibility part to be measured 30 bends to close to two ends doubling, owing to being driven the impact of device 40 local width, distance between left socle 10 and right support 20 cannot be further to so that the angle of flexible part 30 to be measured bending cannot reduce further.And in driving means 40 mounting means shown in Fig. 1 a, the side of right support 20 is deviated from owing to driving means 40 is installed on left socle 10, and/or right support 20 deviates from the side of left socle, driving means 40 can promote left socle 10 to completely attach to right support 20, beneficially increases the scope testing flexible part 30 angle of bend to be measured.Accordingly, it is preferred that driving means 40 mounting means as shown in Figure 1a.
This utility model provides a kind of bend testing apparatus to include, and hinged left socle 10 and right support 20, left socle 10 and right support 20 are for being fixed the both sides of flexible part 30 to be measured respectively.Bend testing apparatus also includes the driving means 40 being connected with left socle 10 and/or right support 20, and under the driving of driving means 40, left socle 10 is close or deviates from right support 20.Owing to the both sides of flexible part 30 to be measured are individually fixed on hinged left socle 10 and right support 20, therefore, driving means 40 drive left socle 10 near or deviate from right support 20 move time, flexible part 30 to be measured can bending to articulated position A of left socle 10 and right support 20 at.So, on the one hand, the angle β at articulated position A is equal or approximately equal the angle of flexible part 30 to be measured generation bending with left socle 10 and right support 20.Therefore, it can by the angle β at above-mentioned articulated position A being measured the bending angle drawing flexible part to be measured 30.Such that it is able to avoid by range estimation, prior art estimates that the angle of bend of flexible part 30 to be measured causes the problem that crooked test error in data is bigger, improve accuracy and the credibility of flexibility test result.
On the other hand, in prior art when flexible screen 31 degree of being curved is measured, the part that reference test bar 60 contacts with flexible screen 31 is a narrower face, and the deformation angle that the part that flexible screen 31 contacts with reference test bar 60 is when crooked test is relatively big, other parts of flexible screen 31 deformation angle when crooked test is less so that flexible screen 31 surface flexibility test result everywhere is inconsistent.And this utility model is squeezed by left socle 10 and right support 20 close to each other and pushes away the flexibility being arranged between left socle 10 and right support 20 part to be measured 30 and make its surface curvature, so can be without using reference test bar 60 of the prior art such that it is able to avoid owing to using reference test bar 60 to cause the inconsistent problem of flexible screen 31 surface flexibility test result everywhere.
Another aspect, by flexible part 30 to be measured is arranged on left socle 10 and right support 20, when flexible part 30 to be measured is in bending at articulated position A, can contact with left socle 10 and right support 20 with the part at the edge near flexible part to be measured, such that it is able to flexibility part to be measured 30 edge of bending is had effect that is fixing and that support, further ensure the measuring accuracy of flexible part to be measured 30.
Owing to the mounting means of the left socle 10 shown in Fig. 1 a and the articulated manner of right support 20 and driving means 40 is preferable.Therefore to convenient explanation, below structure and the mounting means of all parts in Fig. 1 a are carried out detailed illustration.And following example are all to be connected to, by left socle 10 and right support 20, the explanation that carries out as a example by driving means 40.
Further, when the bottom of bend testing apparatus arranges base 50 as shown in Figure 2 a, can arrange guide rail 501 as shown in Figure 2 b in this base 50, the lower end of above-mentioned left socle 10 and right support 20 can be installed within guide rail 501.Concrete, as shown in Figure 2 a, the lower end of left socle 10 can be arranged on the left side of guide rail 501, be connected with the driving means 40 being fixed on base 50 left end；The lower end of right support 20 is arranged on the right side of guide rail 501, is connected with the driving means 40 being fixed on base 50 right-hand member.
So, it is arranged in guide rail 501 by left socle 10 and right support 20, can ensure that the rectilinear movement between left socle 10 and right support 20, it is to avoid due to left socle 10 and right support 20 close to each other or when deviating from motion owing to occurring angle deviating to produce test error.
Below according to using the bend testing apparatus shown in Fig. 2 a, concrete test process when testing flexible part 30 to be measured is described in detail.Wherein, need in above-mentioned test process the bending resistance folding endurance testing flexible part 30 to be measured, and the bending extreme angles of flexible part 30 to be measured is tested.
When the bending resistance folding endurance of flexible part 30 to be measured is tested, need to preset the angle of bend threshold value beta of flexible part to be measured 30.In the case, time initial (such as Fig. 2 a), between left socle 10 and right support 20, there is predetermined angle α, having initial distance L1 between left socle 10 and right support 20, the flexibility part to be measured 30 being now fixedly mounted between left socle 10 and right support 20 is original state (original state is that flexible part to be measured 30 is in its natural state due to the curvulate state of action of gravity).
When testing, left socle 10 and right support 20 do straight reciprocating motion along guide rail 501 respectively under the reciprocal driving of driving means 40, flexible part to be measured 30 is made to be bent to above-mentioned angle of bend threshold value beta, and record the number of times of bending before flexible part to be measured 30 damages, in order to the bending resistance folding endurance of flexible part 30 to be measured is illustrated, the number of times that flexible part 30 to be measured can reach angle of bend threshold value beta is the most, shows that the resistance to bending performance of this flexible part 30 to be measured is the best；Otherwise then show that the resistance to bending performance of this flexible part 30 to be measured is poor.
It should be noted that, angle at articulated position A is equal or approximately equal the angle bent due to the generation of flexible part 30 to be measured with left socle 10 and right support 20, therefore to make flexible part to be measured 30 be bent to above-mentioned angle of bend threshold value beta, need to make left socle 10 and the right support 20 angle at articulated position A as shown in Figure 2 c for above-mentioned angle of bend threshold value beta under the driving of driving means 40, the now corresponding distance between left socle 10 and right support 20 should be L2, (L1-L2)/2 are and are respectively necessary for making left socle 10 and right support 20 distance of movement in guide rail 501.I.e. driving means 40 applies inside thrust to left socle 10 and right support 20 respectively, left socle 10 is along guide rail 501 end motion to the right, right support 20 is along guide rail 501 end motion to the left, when left socle 10 and right support 20 move the distance of (L1-L2)/2 at guide rail 501 Nei Xiang center respectively, it is bent to above-mentioned angle of bend threshold value beta.
As shown in Figure 2 c, according to trigonometric function:
In formula, β is the angle of bend threshold value between left socle 10 and right support 20, and L2 is the distance between left socle 10 and right support 20, and L3 is left socle 10 and/or right support 20 in articulated position A with the length of lower part.
It can further be stated that, as shown in Figure 1a, when driving means 40 is provided only on the side that left socle 10 deviates from right support 20, driving means 40 drives left socle 10 to move to the direction of right support 20, owing to left socle 10 and right support 20 are fixed at articulated position A, angle between left socle 10 and right support 20 can move along with the position of left socle 10 and right support 20 and change, but the fixed position between left socle 10 and right support 20 is constant, i.e. left socle 10 and right support 20 immobilizes with length L3 of lower part in articulated position A.Simultaneously as when having the original state of predetermined angle α between left socle 10 and right support 20 (such as Fig. 2 a), left socle 10 is L3 in articulated position A so that the length of lower part is identical with the length of lower part and right support 20 in articulated position A.
So, when the bottom of left socle 10 is when moving to the direction of right support 20, and left socle 10 promotes the locus of articulated position A to move up, drive right support 20 to link to the direction of left socle 10 simultaneously and link.
Therefore, when driving means 40 is provided only on left socle 10 side, left socle 10 is the most identical or approximately the same with the displacement of right support 20, is equally useful above-mentioned formula (1) and calculates.
Owing to the length of L3 immobilizes in left socle 10 and/or right support 20 reciprocatory movement all the time, when threshold angle is β, by formula (1), can calculate the length learning L2/2, and then the value of distance (L1-L2)/2 that left socle 10 and right support 20 should move at guide rail 501 Nei Xiang center respectively can be learnt.
Next, driving means 40 converts force direction, respectively left socle 10 and right support 20 are applied outside pulling force, left socle 10 is along guide rail 501 end motion to the left, right support 20 is along guide rail 501 end motion to the right, left socle 10 and right support 20 are gradually brought to predetermined angle α, i.e. recover to original state, and flexible part 30 to be measured recovers to original state.Being moved back and forth for more than 40 time by driving means, before can damaging flexible part 30 to be measured, the number of times of bending carries out record, illustrates with the bending resistance folding endurance to flexible part 30 to be measured.
Additionally, when the bending extreme angles of flexible part 30 to be measured is tested, the most flexible part 30 to be measured needs to be in as shown in Figure 2 a original state.Then respectively left socle 10 and right support 20 are applied inside thrust by driving means 40, left socle 10 is along guide rail 501 end motion to the right, right support 20 is along guide rail 501 end motion to the left, when flexible part 30 to be measured is bent to the limit i.e. before damaging, left socle 10 and right support 20 can be tested by the angle at articulated position A, thus obtain the bending extreme angles of flexible part to be measured 30.
Hereinafter the concrete structure of above-mentioned driving means 40 is carried out detailed illustration.
Such as, above-mentioned driving means 40 can be hydraulic cylinder 401 as shown in Figure 2 c, and the piston rod 4012 of this hydraulic cylinder 401 is connected with left socle 10 and/or right support 20.
Concrete, such as, when hydraulic cylinder 401 one side is arranged on left socle 10, the cylinder barrel 4011 of hydraulic cylinder 401 is fixedly mounted on base 50 left end, piston rod 4012 end and is connected driving left socle 10 with the bottom of left socle 10 to the motion of the direction of right support 20.
The most such as, when hydraulic cylinder 401 one side is arranged on right support 20, the cylinder barrel 4011 of hydraulic cylinder 401 is fixedly mounted on base 50 right-hand member, piston rod 4012 end and is connected driving right support 20 with the bottom of right support 20 to the motion of the direction of left socle 10.
The most such as, when two hydraulic cylinders 401 are separately positioned on left socle 10 and right support 20, the cylinder barrel 4011 of left end hydraulic cylinder 401 is fixedly mounted on base 50 left end, piston rod 4012 end is connected with the bottom of left socle 10, and the cylinder barrel 4011 of right-hand member hydraulic cylinder 401 is fixedly mounted on base 50 right-hand member, piston rod 4012 end is connected with the bottom of right support 20.
In the case, the piston rod 4012 of hydraulic cylinder 401 stretches out, and applies left socle 10 to the close thrust of right support 20；The piston rod 4012 of hydraulic cylinder 401 shrinks, and left socle 10 applies to deviate from the pulling force of right support 20, it is achieved the test to flexible part 30 to be measured.The operation principle of the hydraulic cylinder 401 of right-hand member is identical with the operation principle of left end hydraulic cylinder 401, and here is omitted.
The most such as, above-mentioned driving means 40 can also motor 402 as shown in Figure 2 d and the pinion and rack 403 that is connected with the output shaft of motor 402.Concrete, the output shaft of left end motor 402 is coaxially connected with the gear 4031 of pinion and rack 403, the gear 4031 of the output shaft rotation driven gear rackwork 403 of motor 402 rotates coaxially, the tooth bar 4032 of pinion and rack 403 is arranged on base along the direction of guide rail 501, gear 4031 is meshed with tooth bar 4032, and the other end of tooth bar 4032 is connected with the bottom of left socle 10.
In the case, the output shaft of motor 402 rotates counterclockwise so that tooth bar 4032 moves laterally along guide rail 501, and tooth bar 4032 moves and pulls left socle 10 to be moved to the left；The output shaft of motor 402 makes tooth bar 4032 move along guide rail 501 to center when rotating clockwise, tooth bar 4032 moves and pulls left socle 10 to move right, it is achieved the test to flexible part 30 to be measured.The motor 402 of right-hand member is identical with the operation principle of the motor 402 of left end and pinion and rack 403 with the operation principle of pinion and rack 403, and here is omitted.
Further, for the ease of the connection between left socle 10 and right support 20, can be as shown in Figure 3 a, upper part at left socle 10 and right support 20 is provided above comb structure 11, when the upper part of left socle 10 and right support 20 is provided above as comb structure 11, can be arranged in a crossed manner with the comb of right support 20 by the comb of left socle 10, and left socle 10 and right support 20 hinged at crossover location (such as Fig. 2 a)；Fixing flexible part to be measured 30 between comb structure 11 and the comb structure 11 of left socle 10 of right support 20.
When the bendability that flexural measurement device of the present utility model is applied to flexible screen is tested, the flexible screen width range of required test is generally between 40mm～120mm, therefore, the left socle 10 of this utility model flexural measurement device and the width of right support 20 are usually arranged as between 80mm～120mm, to guarantee to test the flexible screen in the range of stock size.When testing the flexible screen that width is 120mm, the width of flexible screen is identical with the width of left socle 10 and right support 20, directly flexible screen correspondence is arranged on left socle 10 and right support 20；When testing the flexible screen that width is 40mm, flexible screen it is arranged in the middle part of left socle 10 and right support 20 and ensures flexible screen centrosymmetry, to ensure the flexible screen dual-side uniform force at left socle 10 or right support 20 as far as possible.
Preferred on this basis, in above-mentioned comb structure 11, the spacing of adjacent two comb is 8mm～10mm.When comb tooth spacing is less than 8mm, the width of comb is too small, is susceptible to deformation when test, it is difficult to ensure the fixing rigidity of flexible part 30 to be measured；And when comb tooth spacing is more than 10mm, comb is wide for the clamping spacing of flexible part 30 to be measured, during test, flexible part 30 to be measured easily produces the problem that each local deformation differs, thus is unfavorable for ensureing the precision of test.
Additionally, left socle 10 and right support 20 may be arranged as tabular, when left socle 10 and right support 20 are set to tabular, left socle 10 and right support 20 are hinged (as shown in fig. 1b and fig. lc) on top or bottom.
Along with the demand of flexible screen is improved constantly by the most perfect of flexible screen technology and client, the flexible screen size that can design and manufacture also is continuing to increase, existing flexible screen width has the most progressively expanded 160mm to, take into account in view of this device for the test of other flexible platelets simultaneously, further, in left socle 10 and at least side of right support 20, such as Fig. 3 a or as shown in Figure 3 b (left view of the left socle 10 obtained in the direction of the arrow in Fig. 2 d), it is also provided with additional frame 102, during so that additional frame 102 is launched, additional frame 102 is positioned at approximately the same plane with the body frame 101 of left socle 10, or additional frame 102 is positioned at approximately the same plane with the body frame 101 of right support 20.
Preferably, the most additional frame 102 width H2 be set to left socle 10 or right support 10 body frame 101 width H1 1/2.When the width H2 of additional frame 102 is more than the 1/2 of the body frame 101 width H1 of left socle 10 or right support 10, the stability of additional frame 102 is the best；When the width H2 of additional frame 102 is less than the 1/2 of the body frame 101 width H1 of left socle 10 or right support 10, it is difficult to ensure the suitability of this device part to be measured for various sizes of flexibility 30.When being provided with the additional frame 102 of width H2 is body frame 101 width H1 1/2 in the both sides of left socle 10 and right support 20, flexural measurement device of the present utility model can reach 240mm for the maximum detection examination width of flexible part 30 to be measured, not only can meet the maximum measurement size of existing flexible screen, can be equally used for the flexural property of the flexible platelet testing other sizes less than 240mm.
Concrete, when the upper part of left socle 10 and right support 20 arranges comb structure 11, as shown in Figure 3 a, additional frame 102 also can be only arranged at least side of the above left socle of articulated position A 10 and right support 20 for comb structure and additional frame 102.
Or, when left socle 10 and right support 20 are set to platy structure, as shown in Figure 3 b, additional frame 102 is also platy structure.
Additionally, have clamping part 12 on left socle 10 and right support 20, the dual-side of flexible part 30 to be measured is fixed on left socle 10 and right support 20 by clamping part 12 respectively.Fixation by clamping part 12, it is ensured that the measuring stability of flexible part 30 to be measured.
Such as, when the upper part of left socle 10 and right support 20 arranges comb structure 11, as shown in Figure 3 a, above-mentioned clamping part 12 is arranged on the end of each comb, so that it is i.e. fixing once to be often separated by a comb tooth spacing for flexible part 30 to be measured, it is ensured that flexible part 30 edge to be measured keeps identical flexibility everywhere.The most such as, when left socle 10 and right support 20 are tabular, clamping part 12 is arranged in the middle part of left socle 10 and right support 20 and is fixed the both sides of flexible part 30 to be measured respectively.
Further, above-mentioned clamping part 12 can be clip, and the edge held tight of flexible part 30 to be measured can be fixed by clip.Or clamping part 12 can also be for processing at left socle 10 and right support 20 upper groove, and the side of flexible part 30 to be measured realizes gripping in inserting groove.
The above; it is only detailed description of the invention of the present utility model; but protection domain of the present utility model is not limited thereto; any those familiar with the art is in the technical scope that this utility model discloses; change can be readily occurred in or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with described scope of the claims.
Claims (11)
1. a bend testing apparatus, it is characterised in that: include that hinged left socle and right support, described left socle and described right support are for being fixed the both sides of flexible part to be measured respectively；
Described bend testing apparatus also includes the driving means being connected with described left socle and/or described right support, and under the driving of described driving means, described left socle is close or deviates from described right support, so that described flexibility part to be measured bends during test at the articulated position of described left socle and described right support.
Bend testing apparatus the most according to claim 1, it is characterised in that: also including base, described base is provided with guide rail, the lower end of described left socle and described right support is mounted in described guide rail.
Bend testing apparatus the most according to claim 1, it is characterised in that: described driving means includes that hydraulic cylinder, the piston rod of described hydraulic cylinder are connected with described left socle and/or described right support.
Bend testing apparatus the most according to claim 1, it is characterised in that: described driving means includes the gear that motor is connected, and the tooth bar being meshed with described gear with described motor output shaft；Described tooth bar is also connected with described left socle and/or described right support.
Bend testing apparatus the most according to claim 1, it is characterized in that: the upper part of described left socle and described right support has comb structure, described comb structure is used for fixing described flexibility part to be measured, the comb of described left socle is arranged in a crossed manner with the comb of described right support, and described left socle and described right support are hinged at crossover location.
Bend testing apparatus the most according to claim 5, it is characterised in that: in described comb structure, the spacing of adjacent two comb is 8mm～10mm.
Bend testing apparatus the most according to claim 1, it is characterised in that described left socle and described right support are tabular, and described left socle and the top of described right support or bottom hinged.
8. according to the bend testing apparatus described in any one of claim 1-7, it is characterized in that, the at least side of described left socle and described right support is provided with additional frame, during so that described additional frame is launched, described additional frame and described left socle are positioned at approximately the same plane, or described additional frame is positioned at approximately the same plane with described right support.
Bend testing apparatus the most according to claim 8, described additional frame width is left socle or the 1/2 of right support width.
Bend testing apparatus the most according to claim 1, it is characterised in that: described left socle and described right support have clamping part, and the dual-side of flexible part to be measured is fixed on described left socle and described right support by clamping part respectively.
11. bend testing apparatus according to claim 10, it is characterised in that: described clamping part is clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224646.2U CN205426690U (en) | 2016-03-22 | 2016-03-22 | Bending test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620224646.2U CN205426690U (en) | 2016-03-22 | 2016-03-22 | Bending test device |
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| CN205426690U true CN205426690U (en) | 2016-08-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226169A (en) * | 2016-08-23 | 2016-12-14 | 京东方科技集团股份有限公司 | A kind of bending test apparatus |
| CN109805672A (en) * | 2019-03-25 | 2019-05-28 | 云谷（固安）科技有限公司 | A kind of Display Rack |
-
2016
- 2016-03-22 CN CN201620224646.2U patent/CN205426690U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106226169A (en) * | 2016-08-23 | 2016-12-14 | 京东方科技集团股份有限公司 | A kind of bending test apparatus |
| CN109805672A (en) * | 2019-03-25 | 2019-05-28 | 云谷（固安）科技有限公司 | A kind of Display Rack |
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