CN108693107A - A kind of friction testing tooling - Google Patents
A kind of friction testing tooling Download PDFInfo
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- CN108693107A CN108693107A CN201810860508.7A CN201810860508A CN108693107A CN 108693107 A CN108693107 A CN 108693107A CN 201810860508 A CN201810860508 A CN 201810860508A CN 108693107 A CN108693107 A CN 108693107A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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Abstract
The present invention relates to test device technical fields, disclose a kind of friction testing tooling.Friction testing tooling includes that substrate, mobile platform, the first fixture, the second fixture, barrier assembly and traction component, mobile platform are slidably arranged on substrate;It is folded with the first fixture setting of the first rubber on a mobile platform;Being folded with the second fixture of the second rubber can be placed on the first fixture, and the second rubber is made to be abutted with the first rubber;Traction component pulls mobile platform sliding;Barrier assembly includes that first state and the second state do not stop the movement of the second fixture when in the first state, when barrier assembly is in the second state, stops the movement of the second fixture.The tooling can realize that size is small, quality is extremely light, the friction testing between the object of inconvenient clamping, and then can measure friction coefficient, and production application is required and instruct to formulate relevant criterion.
Description
Technical field
The present invention relates to test device technical field more particularly to a kind of friction testing toolings.
Background technology
In side entrance back module, lamp bar is opposite with the side of light guide plate, and the light that LED is projected is passed through from light guide plate side
From the positive light extraction of display panel after light guide plate, scattering netted dot, reflector plate.LED is in direct contact with light guide plate in order to prevent, is led to
Multiple lip blocks can be often installed in lamp bar, since size limits, the adhesion strength of lip block and lamp bar is directly related to
Whether LED and light guide plate can collision impacts.Ensure during mechanical shock and fall-down test and actual shipment, lip block
It will not fall off, the cohesive force test of routine test such as cushion block is generally carried out, because of liquid crystal module type size, light guide plate weight
The factors such as amount, cushion block size, material, quantity influence, it is difficult to customize a cohesive force standard to specific model.
Lip block mainly uses three kinds of materials at present:FR4, brass, PPA;The common material of light guide plate is optical grade PC
Or PMMA is simulated if the friction coefficient between lip block and light guide plate can be calculated in actual shipment and falling process
Impact force, so that it may to calculate frictional force between the two, thus formulate minimum cohesive force standard.
Due to the size and the thickness more small (being less than 5 millimeter magnitudes) of light guide plate, very light weight of lip block, lead
Cause frictional force in inconvenient clamped, test process small, it can not pin-point reading so as to cause test equipment.
Therefore, there is an urgent need for a kind of friction testing tooling, come solve it is above-mentioned because determinand size is small, light weight due to cause
Inconvenient clamping, the problem of can not accurately measuring frictional force between wisp.
Invention content
The first object of the present invention is to propose a kind of friction testing tooling, which can realize that size is small, quality
Friction testing between the object of extremely light, inconvenient clamping.
For this purpose, the present invention uses following technical scheme:
A kind of friction testing tooling, including:
Substrate;
Mobile platform is slidably arranged on the substrate;
First fixture is arranged on the mobile platform, the first rubber is folded on first fixture;
Second fixture, is folded with the second rubber thereon, and second fixture can be placed on first fixture so that
Second rubber is abutted with first rubber;
Traction component is connect with the mobile platform, and can pull the mobile platform sliding;
Barrier assembly comprising first state and the second state, when the barrier assembly is in the first state,
The movement for not stopping second fixture stops second fixture when the barrier assembly is in second state
Movement.
As the preferred embodiment of above-mentioned friction testing tooling, the barrier assembly includes gantry support and baffle, described
Gantry support is fixed on the substrate, and the baffle is inserted on the gantry support and can slide up and down.
As the preferred embodiment of above-mentioned friction testing tooling, the barrier assembly includes gantry support and baffle, described
Gantry support is fixed on the substrate, and the panel hinge is on the gantry support.
As the preferred embodiment of above-mentioned friction testing tooling, guide part is provided on the substrate;The guide part is
Along the linear guide of substrate length direction setting.
As the preferred embodiment of above-mentioned friction testing tooling, position adjustment component, institute are provided on the mobile platform
Rheme sets adjustment component and is configured to adjust position of first fixture on the mobile platform.
As the preferred embodiment of above-mentioned friction testing tooling, first fixture includes two clamping plates being oppositely arranged,
First rubber is folded on each clamping plate, the position adjustment component can adjust between two clamping plates
Away from.
As the preferred embodiment of above-mentioned friction testing tooling, pass through sliding rail between the mobile platform and first fixture
Coordinate with sliding slot.
As the preferred embodiment of above-mentioned friction testing tooling, the position adjustment component includes driving part and driving section
One end of part, the transmission parts is drivingly connected in the driving part, and the other end drives the first fixture movement.
As the preferred embodiment of above-mentioned friction testing tooling, the transmission parts include worm screw and turbine, the worm screw
Moving direction along the mobile platform extends.
As the preferred embodiment of above-mentioned friction testing tooling, second fixture includes weightening block, on the weightening block
It is provided with clamp assembly, second rubber can be fixed on the weightening block by the clamp assembly.
As the preferred embodiment of above-mentioned friction testing tooling, the clamp assembly includes:
The opposite sides hollow out of the pressing plate of frame shape, the pressing plate is provided with locating slot, the both ends energy of second rubber
It is enough inserted into the locating slot and slides;
Elastic component is provided with storage tank on the weightening block, and the elastic component is arranged in storage tank, the elastic component energy
Enough sides that second rubber is pressed on to the pressing plate.
As the preferred embodiment of above-mentioned friction testing tooling, the clamp assembly further includes top plate, and both ends are plugged in
In the locating slot, the top plate is arranged between the elastic component and second rubber, and the top plate can will be described
Second rubber is pressed on the side of the pressing plate.
As the preferred embodiment of above-mentioned friction testing tooling, the storage tank is parallel to the locating slot.
Compared with prior art, advantages of the present invention and advantageous effect are:
The invention discloses a kind of friction testing toolings.The friction testing tooling includes substrate, mobile platform, traction
Component, the first fixture, the second fixture and barrier assembly, mobile platform can be slided under the traction action of traction component on substrate
Dynamic, the first fixture is arranged on a mobile platform, and the first rubber is folded on the first fixture, second is folded on the second fixture and is rubbed
Object is wiped, the second fixture can be placed on the first fixture so that the second rubber is abutted with the first rubber;Barrier assembly includes the
One state and the second state do not stop the movement of the second fixture, at barrier assembly when barrier assembly is in first state
When the second state, stop the movement of the second fixture.The tooling is arranged by above structure, it can be achieved that size is small, quality
Friction testing between the object of extremely light, inconvenient clamping, and then friction coefficient can be measured, so as to formulate relevant criterion require and
Instruct production application.
Description of the drawings
Fig. 1 is the structural exploded view for the friction testing tooling that the specific embodiment of the invention provides;
Fig. 2 is the structural representation when friction testing tooling that the specific embodiment of the invention provides is in first state
Figure;
Fig. 3 is that the structure when friction testing tooling that the specific embodiment of the invention provides was in for second state early period is shown
It is intended to;
Fig. 4 is that the structure when friction testing tooling that the specific embodiment of the invention provides was in for the second state later stage is shown
It is intended to;
Fig. 5 is the structural schematic diagram of mobile platform and the first fixture that the specific embodiment of the invention provides;
Fig. 6 is the structural schematic diagram for the second fixture that the specific embodiment of the invention provides;
Fig. 7 is the structural schematic diagram being folded in the second rubber on the second fixture;
Fig. 8 is the structural schematic diagram when being put into top plate and elastic component (being in compressive state) on the second fixture;
Fig. 9 is structural schematic diagram when top plate and the second rubber are pressed on pressing plate side by elastic component.
Wherein:
1- substrates;2- mobile platforms;The first fixtures of 3-;The second fixtures of 4-;5- barrier assemblies;The first rubbers of 6-;7-
Two rubbers;8- traction components;
11- guide parts;
21- sliding rails;22- driving parts;23- worm screws;24- turbines;25- holders;26- studs;
31- clamping plates;32- sliding slots;33- tapped through holes;34- fixture blocks;
41- weightening blocks;42- pressing plates;43- elastic components;44- storage tanks;45- top plates;
51- gantry supports;52- baffles;53- draw rings;
71- lip blocks;
81- fixed seats;82- fixed pulleys;83- traction ropes.
Specific implementation mode
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings with embodiment.It is understood that this place
The specific embodiment of description is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to
Convenient for description, in attached drawing, only the parts related to the present invention are shown and it is not all.
As Figure 1-Figure 4, a kind of friction testing tooling, including substrate 1, mobile platform 2, are present embodiments provided
One fixture 3, the second fixture 4, barrier assembly 5 and traction component 8.Substrate 1 is rectangular, and mobile platform 2 is slidably arranged in substrate 1
On length direction.Traction component 8 is connect with mobile platform 2, provides power for the sliding of mobile platform 2, traction component 8 being capable of edge
Straight line drawing mobile platform 2 is allowed to slide.First fixture 3 is removably arranged on mobile platform 2, sandwiched on the first fixture 3
There is the first rubber 6;It is folded with the second rubber 7 on second fixture 4, when performing a test, the second fixture 4 is placed on first
On fixture 3 so that the second rubber 7 is abutted with the first rubber 6, to measure between the first rubber 6 and the second rubber 7
Frictional force.It should be noted that in the present embodiment, with the light guide plate in side entrance back module for the first rubber 6, with
Lamp bar (lip block 71) be the second rubber 7 for illustrate.
Barrier assembly 5 includes first state and the second state, as shown in Fig. 2, when barrier assembly 5 is in first state,
It does not stop the movement of the second fixture 4, and the second fixture 4 can follow mobile platform 2 by barrier assembly 5, the second rubber 7 with
First rubber 6 remains opposing stationary;As shown in Figure 3 and Figure 4, when barrier assembly 5 is in the second state, blocking the
The movement of two fixtures 4, the second fixture 4 is blocked the blocking of component 5 and mobile platform 2 can not be followed by barrier assembly 5, and moves
Platform 2 continues to move under the traction action of traction component 8 so that and with mobile platform 2 relative motion occurs for the second fixture 4, from
And so that with the first fixture 3 on mobile platform 2 relative motion occurs for the second fixture 4, so that second on the second fixture 4
Rubber 7 generates phase mutual friction with the first rubber 6 on the first fixture 3.
Friction testing tooling provided in this embodiment is arranged by above structure, it can be achieved that size is small, quality is extremely light,
Friction testing between the object of inconvenience clamping, and then friction coefficient can be measured, it requires and instructs to formulate relevant criterion
Production application.
Further, it is provided with guide part 11 on substrate 1, for being oriented to for the linear slide of mobile platform 2.It leads
It can be two the linear guides being installed on substrate 1 to portion 11, be arranged along the length direction of substrate 1, two the linear guides
Parallel interval is arranged, and guide rail inner wall fits with mobile platform 2.The effect of guide part 11 is to ensure that mobile platform 2 can be kept
Linear motion.It is understood that guide part 11 can be integrally formed with substrate 1, or mutually independent component passes through
The modes such as screw, glue or welding are fixed together.
Specifically, barrier assembly 5, which includes the gantry support 51 of seperated design and baffle 52, gantry support 51, is installed in base
On plate 1, baffle 52 is inserted on gantry support 51 and can slide up and down.As shown in Fig. 2, when baffle 52 is detached with gantry support 51
When, barrier assembly 5 is in above-mentioned first state;As shown in Figure 3 and Figure 4, when baffle 52 and 51 grafting of gantry support, blocking group
Part 5 is in above-mentioned second state.Further, it is arranged fluted on gantry support 51, baffle 52 can be from gantry support 51
Top or the left and right sides are inserted into or are detached from groove, to realize the switching of first state and the second state.In order to facilitate baffle 52
Draw ring 53 can be arranged on baffle 52 in pull.
In another embodiment of the application, barrier assembly 5 includes gantry support 51 and baffle 52, and gantry support 51 is fixed
On substrate 1, baffle 52 hinged (such as passing through hinge) is arranged such so that baffle in the side of gantry support 51 or top margin
52 can rotate folding relative to gantry support 51, " shutdown " or " enabling " state be formed, when baffle 52 is gone to and gantry support 51
Angular range be 90 ° -270 ° when, i.e., state of " opening the door ", at this time barrier assembly 5 be in first state;When baffle 52 go to
When the angle of gantry support 51 is 0 °, i.e., state of " closing the door ", at this time barrier assembly 5 be in the second state.In order to facilitate baffle 52
Folding, handle can be set on baffle 52.
In the present embodiment, adjustment component in position is provided on mobile platform 2, position adjusts component for adjusting the first folder
Has 3 position on mobile platform 2, so that the second rubber 7 on the first rubber 6 and the second fixture 4 on the first fixture 3
Face abuts.
Specifically, as shown in figure 5, position adjustment component includes holder 25, driving part 22 and transmission parts, holder 25
It is used to support driving part 22 and transmission parts, one end of transmission parts is drivingly connected in driving part 22, other end driving the
One fixture 3 moves, to realize the position adjustment of the first fixture 3.
Further, the driving part 22 in the present embodiment is turntable, and transmission parts include turbine 24 and worm screw 23, snail
Bar 23 extends along the moving direction of mobile platform 2.Holder 25 is fixed on mobile platform 2, is used to support worm screw 23 and turbine 24,
The both ends of worm screw 23 are respectively erected on the holder 25 for being fixed on 2 rear and front end of mobile platform, and turntable is mounted on certain of worm screw 23
One end.It is provided with stud 26 in the axis hole of turbine 24, tapped through hole 33 is provided on the first fixture 3, the first fixture 3 passes through spiral shell
Line through-hole 33 is spirally connected with stud 26.When needing to adjust the position of the first fixture 3, manual rotation turntable, driven by rotary disc worm screw 23
Rotation, worm screw 23 drive the turbine 24 being engaged with to rotate, and turbine 24 drives stud 26 to rotate, and the rotation of stud 26 makes first
Position of the fixture 3 on mobile platform 2 changes, and realizes the position adjustment of the first fixture 3.It is arranged by above structure,
The versatility of the friction testing tooling is ensure that, in actual use, due to the first different rubbers 6 and the second rubber
There are difference for 7 size and position, and need to ensure that the first rubber 6 and the second rubber 7 are just opposite before testing every time.At this time
Turntable only need to be adjusted, makes the left and right translation on mobile platform 2 of the first fixture 3, you can the first rubber 6 and second thereon is made to press from both sides
The second rubber 7 on tool 4 is just opposite, easy to operate, strong applicability.It, can using the electrodeless continuous fine adjustment of 24 worm screw 23 of turbine
Realize the exactitude position of detected materials, it is convenient and efficient.It is noted that ensure 24 slow rotation of turbine in use, with
It avoids stuck.
In the present embodiment, the first fixture 3 includes two clamping plates 31 being oppositely arranged, and two clamping plates 31 are separately positioned on whirlpool
The both sides of wheel 24, correspondingly, the thread rotary orientation of the stud 26 of 24 both sides of turbine is on the contrary, with the close to each other of two clamping plates 31 of realization
Or be located remotely from each other, to realize the adjustment of the spacing between position adjustment two clamping plates 31 of component pair.
The top of each clamping plate 31 is both provided with fixture block 34, and gap is formed between fixture block 34 and clamping plate 31, the gap and the
The thickness of one rubber 6 is adapted, and the first rubber 6 is put into the gap, and screw lock is used in combination, and ensures that its position does not occur partially
It moves.According to actual needs, the fixture block 34 or clamping plate 31 that different-thickness may be selected, to meet the first friction of different-thickness
The clamping demand of object 6.It is understood that the mode that the first rubber 6 is clamped in the first fixture 3 is not limited to above structure form,
Can also according to the shape and size selection other modes of the first rubber 6, as long as can the first rubber of stable holding 6,
The present embodiment will not enumerate.
The a plurality of sliding rail 21 being mutually parallel, the extension side of sliding rail 21 are arranged at intervals on mobile platform 2 along its length
To the moving direction perpendicular to mobile platform 2, the bottom of the first fixture 3 is correspondingly arranged on sliding slot 32,32 phase of sliding rail 21 and sliding slot
Cooperation can be that the position adjustment of the first fixture 3 is oriented to.Preferably, the sliding rail 21 in the present embodiment be designed as it is trapezoidal,
Sliding slot 32 on first fixture 3 is also configured as trapezoidal, trapezoidal sliding connection structure accordingly can improve guiding accuracy, avoid
First fixture 3 shifts when being slided along sliding rail 21 and pause and transition in rhythm or melody so that the more smooth stabilization of movement of the first fixture 3.More into one
Step ground, in order to promote the stability of 3 sliding process of the first fixture, prevents it from tilting or shaking, the bottom of the first fixture 3 into
Row wedge shape widens thickening processing.In the present embodiment, four sliding rails 21 are provided on mobile platform 2,3 bottom of the first fixture is corresponding
Four sliding slots 32 of setting, certainly, in actual design, can according to the specific size of mobile platform 2 and the first fixture 3 select close
The sliding rail 21 and sliding slot 32 of suitable number.
In the present embodiment, as shown in fig. 6, the second fixture 4 includes weightening block 41, clamping group is provided on the block 41 that increases weight
Second rubber 7 can be fixed on weightening block 41 by part, clamp assembly.On the one hand the effect of weightening block 41 is as clamping group
On the other hand the carrying platform of part and the second rubber 7 is inconvenient to capture traction since the size of the second detectable substance is smaller, and
Lighter in weight inconvenience pulling force instrument readings, by increasing weight, block 41 can increase pressure, avoid the second fixture 4 and the first fixture 3
It relatively moves, amplifies test reading, ensure being smoothed out for test process.
Specifically, with reference to figure 7- Fig. 9, clamp assembly includes pressing plate 42, elastic component 43 and top plate 45, wherein pressing plate 42
Opposite sides hollow out for frame-shaped construction, pressing plate 42 is provided with locating slot, and the upper and lower ends of the second rubber 7 are inserted into positioning
In slot, the left and right translation in locating slot.Storage tank 44 is provided on weightening block 41, storage tank 44 is parallel to locating slot setting, i.e.,
It is arranged perpendicular to the second rubber 7.Elastic component 43 is arranged in the storage tank 44, and the end of elastic component 43 can be with the second friction
Object 7 abuts against, and to which the second rubber 7 to be pressed on to the side of pressing plate 42, realizes the fixation of the second rubber 7.
When the size of the second rubber 7 is smaller, lighter weight when, be only often not easy to apply it pressure by elastic component 43
Power, and there is the risk for destroying the second rubber 7, therefore, in order to preferably realize the fixation to the second rubber 7, in elasticity
The top plate 45 of bar shaped is set between part 43 and the second rubber 7, and the length of top plate 45 is adapted with the size of pressing plate 42, top plate 45
Both ends be plugged in locating slot, elastic component 43 is held out against the second rubber 7 in the side of pressing plate 42 by forcing in top plate 45,
To realize the fixation to the second rubber 7.
In the present embodiment, the first fixture 3 includes two clamping plates 31, and the first rubber 6 is respectively and fixedly provided on each clamping plate 31,
To which the first fixture 3 can fix two the first rubbers 6, rub correspondingly, two groups of top plates 45 and second can be arranged on the second fixture 4
Object 7 is wiped, and is located at the both ends of elastic component 43, the both ends of elastic component 43 can be respectively acting on the top plate 45 at both ends, will
Two the second rubbers 7 are pressed on the opposite sides of pressing plate 42 respectively, realize the fixation of two the second rubbers 7.It was testing
Cheng Zhong, the second rubber 7 are abutted with 6 face of the first rubber, realize that a test process can be completed at the same time two groups of samples and survey
Examination, improves testing efficiency and accuracy.
In order to improve the stability maintenance of the second rubber 7, can multiple storage tanks 44 and elastic component be set with parallel interval
43, so that top plate 45 and the second rubber 7 uniform-compression in the longitudinal direction.Elastic component 43 in the present embodiment is spring,
Other elastic components 43 can also be chosen according to actual needs.
Fig. 7-Fig. 9 show the fixation procedure schematic diagram of the second rubber 7, the benefit of the second fixture 4 using the above structure
It is, avoids easy to slip teeth caused by repeated disassembled and assembled existing for screw fixation method or even whole the shortcomings that scrapping;And glue
Or it is difficult to peel off existing for double faced adhesive tape fixed form, cumbersome disadvantage.
In the present embodiment, traction component 8 include be arranged 2 front end of mobile platform fixed seat 81, be arranged before substrate 1
The fixed pulley 82 and traction rope 83 at end are provided with cylindrical fixed link in fixed seat 81, for binding traction rope 83.Traction
The other end of rope 83 connects pulling apparatus vertically downward after being located on fixed pulley 82.The effect of fixed pulley 82 is to maintain traction
Rope 83 is horizontal, and by traction steer, is conveniently connected with pulling apparatus.Preferably, the pulling apparatus in the present embodiment
Be selected as computer program controlled formula automatic push-pull power machine, this push-pull effort machine biggest advantage be have display equipment, can show pulling force-when
Half interval contour facilitates the average value for reading the gentle section of curve, intuitively shows test result.It should be noted that traction rope 83
Flexible, inelastic rope should be selected, because elastic reaction can bring pause and transition in rhythm or melody sense, feedback to exist to the motion process of mobile platform 2
Zigzag is will present on the curve of push-pull effort machine, influences test result accuracy.Coating lubricating oil is answered at the bearing of fixed pulley 82,
Moderate lubrication oil can also be smeared with the contact surface of traction rope 83, to reduce frictional force.
The material selection of each component and surface treatment are described as follows in the present embodiment:
For guide part 11 and mobile platform 2, it need to consider flatness and deformation problems, aluminium alloy, aluminium alloy may be selected
Density is low, but intensity is relatively high, and near or above high-quality steel, plasticity is good, can be processed into various proximate matters, has excellent conduction
Property, thermal conductivity and corrosion stability, are widely used in industry, usage amount is only second to steel.Due between guide part 11 and mobile platform 2
There are relative motions, therefore material deformation or surface smoothness difference can influence contact surface area, to influence frictional force size, because
This aluminium alloy will select high hardness, yield strength height, on-deformable model, such as 7050-T7451 and 7075-T651.It is oriented to
The surface in portion 11 and the bottom surface of mobile platform 2 because long-term friction may caused by wear, fall bits, wear-resisting painting can be applied in contact surface
Layer material can reduce the friction system of metal parts to form one layer of densification, firm lubricant film layer on the surface of metal parts
Number, friction coefficient is down to 0.06-0.08, phenomena such as to reduce abrasion, be engaged, avoids mobile platform 2 and guide part 11
It shakes in relative movement, is detached to avoid the second rubber 7 from being deviated relative to the first rubber 6.
For worm and gear 23, by failure mode it is found that the material of worm screw 23, worm gear will not only have enough intensity, more
There are good break-in (running-in), anti-attrition, wearability and antiscuffing capacity etc..Worm screw 23 is generally by carbon steel or alloy steel
At 40 steel or 45 steel, and conditioned processing can be used in the worm screw 23 carried in general not too important low speed.Worm gear material is general
For cast tin bronze, casting Al-Fe bronze and gray cast iron (HT150, HT200) etc..Wherein, tin bronze wearability is best, but price
It is higher, the important transmission of 3m/s is more than for sliding speed;The wearability of ampco is weaker compared with tin bronze, but price is just
Preferably, it is generally used for the transmission that sliding speed is less than 4m/s;It is not high that gray cast iron is chiefly used in sliding speed, such as less than 2m/s, to efficiency
It is required that also not high occasion.In the present embodiment, turbine 24 is made of the best tin bronze of wearability.
For the first fixture 3, it is contemplated that its play the role of support, clamp the first rubber 6, so intensity requirement also compared with
Height can select the aluminum alloy material as guide part 11.
For the pressing plate 42 and top plate 45 of increase weight block 41 and clamp assembly, main function is applied to the second rubber 7
Larger pressure, the metal that proportion can be selected larger, such as silver, iron, copper etc..
In the tooling, lubricating oil can be applied to reduce frictional force, such as the sliding slot 32 of 3 bottom of the first fixture on ground easy to wear
Between the contact surface and turbine 24 and worm screw 23 of the sliding rail 21 on mobile platform 2, it should be noted that lubricating oil should be avoided leading
To 11 surface of portion, this is because lubricating oil wears off the size that can influence frictional force herein, it be easy to cause test result production
Raw error.
Below with the light guide plate in side entrance back module for the first rubber 6, lamp bar (lip block 71) is rubbed for second
Object 7 is wiped, and combines figure and figure that the application method of friction testing tooling provided in this embodiment is briefly described.
Preparation before test:The first rubber 6 (light guide plate) is fixed on the first fixture 3 first, and by first
Fixture 3 is connected with the transmission parts in position adjustment component to be placed on mobile platform 2, then the second rubber 7 (lamp bar) is solid
It is scheduled on the second fixture 4, and one with the second rubber 7 is placed on the first fixture 3 down, then by adjusting position
Adjustment component makes light guide plate be abutted with 71 face of lip block in lamp bar.
When the first step is tested, as shown in Fig. 2, baffle 52 is detached gantry support 51 by the draw ring 53 on baffle 52, make
The intermediate region of barrier assembly 5 is vacant, and traction component 8, which pulls, to be loaded with the mobile platform 2 of the first fixture 3 and the second fixture 4 and exist
Under the guiding role of guide part 11, it is moved to final position from initial position uniform rectilinear on substrate 1, by showing in equipment
The smooth section of the pull-up curve of display obtains pulling force average value, is denoted as F1, F1 includes mobile platform 2 and guide part 11 and and substrate
Frictional force between 1.
When second step is tested, as shown in Figure 3 and Figure 4, baffle 52 is put down and is inserted into the groove of gantry support 51, blocking is made
The intermediate region of component 5 is not vacant, and traction component 8 pulls the mobile platform 2 for being loaded with the first fixture 3 and the second fixture 4 again
It is moved from above-mentioned initial position uniform rectilinear, when by barrier assembly 5, the second fixture 4 is blocked and can not be followed by baffle 52
Mobile platform 2 continues to move to, and the block 41 that increases weight at this time is close to 52 inner wall of baffle, effect of the mobile platform 2 in traction component 8 later
Lower continuation linear uniform motion is to above-mentioned final position, by showing that the pull-up curve smooth section acquisition pulling force that equipment is shown is average
Value is denoted as F2, and F2 includes mobile platform 2 and guide part 11 and the frictional force between substrate 1, includes additionally light guide plate and branch
Frictional force between stake pad block 71.Therefore the difference of F2 and F1 is exactly the frictional force of light guide plate and cushion block.Weightening block is weighed again
41 overall weight, so that it may to calculate the friction coefficient of light guide plate and lip block 71.
It should be noted that the testing time of same group of light guide plate and lip block 71 should not be excessive, because of repeatedly friction
The contact surface abrasion of light guide plate can be made to fall bits, the effect of polishing is caused, cause frictional force smaller and smaller, so as to cause test result
It is inaccurate.
In the present embodiment, since the size of lip block 71 is small, the thickness of about 1mm-3mm, light guide plate are 2mm left
The right side, therefore one of the premise for obtaining accurate test result is just to ensure that in relative movement that left and right offset will not occur for the two
Or it is detached from.There are two point designs that can meet in the above structure:First, the linear motion in guide part 11 of mobile platform 2, will make to lead
It is close to mobile platform 2 to portion 11, wear-resistant coating is respectively provided on the surface of the two contact, both makes that contact surface is smooth, dynamics is equal
It is even, not easy to wear;Second is that 52 surface uniform ground of baffle, enables weightening block 41 to be close to baffle 52,2 straight line of mobile platform fortune
When dynamic, the frictional force that light guide plate is applied to weightening block 41 is applied to the support force of the block 41 that increases weight with baffle 52 and cancels out each other, and does not deposit
The power of both direction in left and right, weightening block 41 are stationary states relative to baffle 52.Therefore in the motion process of mobile platform 2
In, lip block 71 and light guide plate will not occur left and right offset or be detached from.
Obviously, the above embodiment of the present invention is just for the sake of clearly illustrating examples made by the present invention, and it is pair to be not
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement etc., should be included in the claims in the present invention made by within the spirit and principle of invention
Protection domain within.
Claims (13)
1. a kind of friction testing tooling, which is characterized in that including:
Substrate (1);
Mobile platform (2) is slidably arranged on the substrate (1);
First fixture (3) is arranged on the mobile platform (2), the first rubber is folded on first fixture (3)
(6);
Second fixture (4), is folded with the second rubber (7) thereon, and second fixture (4) can be placed on first fixture
(3) on so that second rubber (7) abuts with first rubber (6);
Traction component (8) is connect with the mobile platform (2), and can pull the mobile platform (2) sliding;
Barrier assembly (5) comprising first state and the second state, when the barrier assembly (5) is in the first state,
It does not stop the movement of second fixture (4), when the barrier assembly (5) is in second state, described in blocking
The movement of second fixture (4).
2. friction testing tooling according to claim 1, which is characterized in that the barrier assembly (5) includes gantry branch
Frame (51) and baffle (52), the gantry support (51) are installed on the substrate (1), and the baffle (52) is inserted in the dragon
On door bracket (51) and it can slide up and down.
3. friction testing tooling according to claim 1, which is characterized in that the barrier assembly (5) includes gantry branch
Frame (51) and baffle (52), the gantry support (51) are installed on the substrate (1), and the baffle (52) is hinged on the dragon
On door bracket (51).
4. friction testing tooling according to claim 1, which is characterized in that be provided with guide part on the substrate (1)
(11);The guide part (11) is the linear guide being arranged along the substrate (1) length direction.
5. friction testing tooling according to claim 1, which is characterized in that be provided with position on the mobile platform (2)
Adjustment component is set, the position adjustment component is configured to adjust first fixture (3) on the mobile platform (2)
Position.
6. friction testing tooling according to claim 5, which is characterized in that first fixture (3) includes two phases
To the clamping plate (31) of setting, first rubber (6) is folded on each clamping plate (31), the position adjusts component
The spacing of two clamping plates (31) can be adjusted.
7. friction testing tooling according to claim 5, which is characterized in that the mobile platform (2) and described first
Coordinated by sliding rail (21) and sliding slot (32) between fixture (3).
8. friction testing tooling according to claim 5, which is characterized in that the position adjustment component includes driving portion
Part (22) and transmission parts, one end of the transmission parts are drivingly connected in the driving part (22), described in other end driving
First fixture (3) is mobile.
9. friction testing tooling according to claim 8, which is characterized in that the transmission parts include worm screw (23) and
Turbine (24), the worm screw (23) extend along the moving direction of the mobile platform (2).
10. friction testing tooling according to claim 1, which is characterized in that second fixture (4) includes weightening block
(41), clamp assembly is provided on the weightening block (41), second rubber (7) can be fixed on by the clamp assembly
On the weightening block (41).
11. friction testing tooling according to claim 10, which is characterized in that the clamp assembly includes:
The opposite sides hollow out of the pressing plate (42) of frame shape, the pressing plate (42) is provided with locating slot, second rubber (7)
Both ends are inserted into sliding in the locating slot;
Elastic component (43), storage tank (44) is provided on the weightening block (41), and the elastic component (43) is arranged in storage tank
(44) in, second rubber (7) can be pressed on the side of the pressing plate (42) by the elastic component (43).
12. friction testing tooling according to claim 11, which is characterized in that the clamp assembly further includes top plate
(45), both ends are plugged in the locating slot, and top plate (45) setting rubs in the elastic component (43) and described second
Between object (7), second rubber (7) can be pressed on the side of the pressing plate (42) by the top plate (45).
13. friction testing tooling according to claim 11, which is characterized in that the storage tank (44) is parallel to described
Locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860508.7A CN108693107B (en) | 2018-08-01 | 2018-08-01 | Friction force testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810860508.7A CN108693107B (en) | 2018-08-01 | 2018-08-01 | Friction force testing tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108693107A true CN108693107A (en) | 2018-10-23 |
| CN108693107B CN108693107B (en) | 2020-12-22 |
Family
ID=63850912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810860508.7A Active CN108693107B (en) | 2018-08-01 | 2018-08-01 | Friction force testing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108693107B (en) |
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| CN114505878A (en) * | 2022-02-10 | 2022-05-17 | 联宝(合肥)电子科技有限公司 | Clamp and operation method thereof |
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|---|---|
| CN108693107B (en) | 2020-12-22 |
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