CN110455654B - Testing device and method for scratch resistance of electronic glass surface - Google Patents
Testing device and method for scratch resistance of electronic glass surface Download PDFInfo
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- CN110455654B CN110455654B CN201910817675.8A CN201910817675A CN110455654B CN 110455654 B CN110455654 B CN 110455654B CN 201910817675 A CN201910817675 A CN 201910817675A CN 110455654 B CN110455654 B CN 110455654B
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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
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
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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
- G01N3/40—Investigating hardness or rebound hardness
- G01N3/42—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid
- G01N3/46—Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors performing a scratching movement
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0026—Combination of several types of applied forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
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- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0076—Hardness, compressibility or resistance to crushing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/025—Geometry of the test
- G01N2203/0254—Biaxial, the forces being applied along two normal axes of the specimen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
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Abstract
The invention belongs to the technical field of electronic glass, and discloses a device and a method for testing scratch resistance of the surface of electronic glass. The testing device comprises a host, wherein a moving guide rail, a transmission device and a plurality of fixed guide rods are arranged on the host, a horizontal moving guide plate is arranged on the moving guide rail, and a plurality of sample mounting holes are formed in the horizontal moving guide plate; one end of the fixed guide rod is connected with the host in a sliding way, the other end of the fixed guide rod is provided with a friction rod support frame, a friction rod is arranged on the friction rod support frame, a friction scribing head is arranged on the end part of one end of the friction rod, and the friction scribing head is positioned above a sample installed in the sample installation hole; the transmission device is connected with a power device arranged in the main machine and used for driving the horizontal movement guide plate to reciprocate on the movement guide rail, and the scratch width is measured under a microscope after the scratch is finished. The testing device is simple and convenient to operate, can be used for simultaneously rubbing and scratching various kinds of glass, improves the testing efficiency, measures the scratch width through a microscope, and is high in measuring precision and small in error.
Description
Technical Field
The invention belongs to the technical field of electronic glass, and relates to a device and a method for testing scratch resistance of the surface of electronic glass.
Background
Along with the more mature development of electronic glass technology in China, each panel manufacturer has higher and higher requirements on various performances of electronic glass, wherein the panel can contact with a clamp, a brush and the like in each processing procedure, and the scratching of the surface of the glass can be inevitably caused, so that the finished product quality of the panel is unqualified, the yield is reduced, and the cost is increased.
The surface hardness of the electronic glass has more characterization methods, including Mohs hardness, Vickers hardness, pencil hardness and the like. However, the hardness tests can only detect samples one by one, the mohs hardness is more complex in detection, each standard is used for comparing one by one, the efficiency is low, the difference between two standards is large, and the detection result is not accurate; the Vickers hardness is automatically detected by equipment, but is automatically focused and aligned by an instrument during testing, and sometimes inaccurate measurement is caused by unclear indentation boundaries; the pencil hardness is more manually operated, and the angle of the pencil is required to be consistent during testing, so that a large human error exists.
Disclosure of Invention
The invention aims to overcome the defects of complex operation, large measurement error and great influence of manpower on the measurement result of the existing electronic glass surface scratch resistance test, and provides a device and a method for testing the scratch resistance of the electronic glass surface.
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
on one hand, the testing device for the scratch resistance of the surface of the electronic glass comprises a host, wherein a moving guide rail, a transmission device and a plurality of fixed guide rods are arranged on the host, a horizontal moving guide plate is arranged on the moving guide rail, and a plurality of sample mounting holes are formed in the horizontal moving guide plate; one end of the fixed guide rod is connected with the host in a sliding manner, the other end of the fixed guide rod is provided with a friction rod support frame, a friction rod is arranged on the friction rod support frame, a friction scribing head is arranged on the end part of one end of the friction rod, and the friction scribing head is contacted with a sample arranged in the sample mounting hole; the transmission device is connected with a power device arranged in the main machine and is used for driving the horizontal movement guide plate to reciprocate on the movement guide rail.
The device for testing the scratch resistance of the surface of the electronic glass is further improved in that:
the positioning device is characterized by further comprising a positioning ruler, one end of the positioning ruler is connected with the power device, the other end of the positioning ruler is connected with the transmission device through a positioning bolt, and a positioning pointer for indicating the scale of the positioning bolt at the current position on the positioning ruler is arranged on the positioning bolt.
The test piece clamp also comprises a test piece clamp and a bolt; and one end of the bolt is connected with the sample clamp, the other end of the bolt is connected with the sample mounting hole, the sample clamp is used for clamping a sample, and scratch-resistant cloth is arranged between the sample clamp and the sample.
A plurality of weights are sleeved on one end, far away from the friction scribing head, of the friction rod, and a weight frame used for supporting the weights is arranged on the end, far away from the friction scribing head, of the friction rod.
One end of the friction rod support frame is connected with the fixed guide rod through a bolt positioner, and the bolt positioner is used for locking the fixed guide rod and the friction rod support frame; and a friction rod mounting hole is formed in the other end of the friction rod support frame, one end of the friction rod penetrates through the friction rod mounting hole and is positioned above the sample, and the other end of the friction rod is positioned above the friction rod mounting hole.
The host is provided with a fixed guide rod groove, the fixed guide rod is connected with the host through the fixed guide rod groove, and the fixed guide rod can horizontally slide in the fixed guide rod groove.
The friction scribing head is in threaded connection with the friction rod.
The end of the friction scoring head is coated with a friction scoring article.
The section of the friction scribing head is circular, triangular, conical or rectangular, and the power device is a servo motor.
In another aspect of the present invention, a method for testing scratch resistance of an electronic glass surface comprises the following steps:
s1: respectively installing a plurality of pretreated glass samples on different sample installation holes;
s2: selecting a friction rod provided with a friction scribing head with a preset shape, connecting the friction rod with a fixed guide rod through a friction rod support frame, and enabling the friction scribing head to be in contact with a sample through adjusting the friction rod support frame;
s3: starting a power device, and driving the horizontal motion guide plate to perform reciprocating motion on the motion guide rail for preset times through a transmission device;
s4: taking down all the samples, observing whether the surfaces of the samples have scratches or not, and measuring the width of the scratches under a microscope when the surfaces of the samples have the scratches; otherwise, repeating S1-S3 until the surface of the sample is scratched.
Compared with the prior art, the invention has the following beneficial effects:
the testing device is characterized in that a plurality of sample mounting holes are formed in a horizontal moving guide plate, a plurality of fixed guide rods are arranged on a host, each fixed guide rod is provided with a friction rod, a friction scribing head is arranged at one end of each friction rod, and the friction scribing heads are in contact with samples mounted in the sample mounting holes; the power of the power device is transmitted to the horizontal movement guide plate through the transmission device, the horizontal movement guide plate is driven to reciprocate on the movement guide rail, the scribing of a plurality of samples under the friction scribing head is realized, the operation is simple and convenient, and the testing efficiency is high. Through the design of fixed guide arm and friction lever, do not need the manual work to go angle and the dynamics of control ruling, do not need standard thing to compare one by one, the artificial error in the testing result is little, and the measuring result is accurate, and measurement accuracy is high.
Furthermore, a positioning ruler is arranged, one end of the positioning ruler is connected with a power device, the other end of the positioning ruler is connected with a transmission device through a positioning bolt, a positioning pointer used for indicating the current position of the positioning bolt on the positioning ruler is arranged on the positioning bolt, and the distance of the horizontal motion flat plate in reciprocating motion can be realized by adjusting the position of the positioning bolt on the positioning ruler, so that accurate control is realized.
Furthermore, the sample is arranged on the sample mounting hole through the sample clamp and the bolt, the connection is simple and convenient, and the scratch-proof cloth is arranged between the sample clamp and the sample to prevent the sample clamp from scratching the sample.
Furthermore, a plurality of weights are sleeved on one end, away from the friction scribing head, of the friction rod, a weight frame used for supporting the weights is arranged on the end of the friction rod, the weights with different weights can be applied to the friction rod, and testing under different weight conditions is facilitated.
Furthermore, the friction rod is connected with the fixed guide rod through the friction rod support frame, the position of the friction rod on the fixed guide rod is adjusted and fixed through the bolt positioner, the friction rod support frame can conveniently move along the axial direction and the radial direction of the fixed guide rod, the friction rod is further driven to move, and testing of all areas of the sample is facilitated.
Furthermore, a fixed guide rod groove is formed in the host, the fixed guide rod is connected with the host through the fixed guide rod groove, and the fixed guide rod can horizontally slide in the fixed guide rod groove, so that the test can be conveniently carried out at any position of the horizontal movement guide plate.
Furthermore, the friction scribing head is in threaded connection with the friction rod, so that the friction scribing head can be conveniently replaced, and different test requirements can be met.
Furthermore, the end part of the friction scribing head is coated with the friction scribing object, so that the test under various conditions is facilitated, and different test requirements are met.
Furthermore, the cross section of the friction scribing head is circular, triangular, conical or rectangular, so that the friction scribing head is convenient for testing under various conditions, different testing requirements are met, the power device is a servo motor, and the control mode is simple and easy to realize.
According to the test method, a plurality of glass samples are respectively installed on different sample installation holes, the friction rod provided with the friction scribing head in a preset shape is selected, the friction scribing head is in contact with the center of the sample, the horizontal motion guide plate is driven by the transmission device to perform reciprocating motion for a preset number of times on the motion guide rail, so that the test of the plurality of samples can be realized, the operation is simple, the friction and scribing are performed on various kinds of glass, and the test efficiency is high; when there is the mar on the sample surface, measure the mar width under the microscope, measure the mar width through the microscope, measurement accuracy is high, and the error is little.
Drawings
FIG. 1 is a schematic structural diagram of a testing apparatus according to the present invention;
FIG. 2 is a top view of the fixed guide bar and friction bar of the present invention;
FIG. 3 is a schematic view of the friction bar of the present invention;
FIG. 4 is a schematic view of a friction scoring head of the present invention;
FIG. 5 is a schematic view of another friction scoring head of the present invention;
FIG. 6 is a schematic view of another friction scoring head of the present invention.
Wherein: 1-a host; 2-a horizontal movement guide plate; 3-a transmission device; 4-sample mounting holes; 5-a sample clamp; 6-bolt; 7-a motion track; 8-a positioning ruler; 21-fixing the guide rod; 22-a friction bar support frame; 23-bolt locator; 24-a friction bar; 31-rubbing the scoring head; 32-weight holder; 33-weight.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1 to 6, in one aspect of the invention, the device for testing scratch resistance of the surface of electronic glass comprises a main machine 1, a horizontal moving guide plate 2 connected through a moving guide rail 7 is arranged at the upper end of the main machine 1, the horizontal moving guide plate 2 can reciprocate on the moving guide rail 7, a transmission device 3 is arranged at one end of the horizontal moving guide plate 2, the transmission device 3 is connected with a servo motor arranged in the main machine 1, power is provided through the servo motor, the transmission device 3 is used for transmitting the power to the horizontal moving guide plate 2 to drive the horizontal moving guide plate 2 to reciprocate on the moving guide rail 7, a positioning ruler 8 is further arranged on the transmission device 3, and the moving distance of the horizontal moving guide plate 2 is set through the positioning ruler 8.
One end of the positioning ruler 8 is connected with the servo motor, so that the positioning ruler 8 can rotate 360 degrees along the motor shaft of the servo motor in the horizontal direction; the upper part of the positioning ruler 8 is connected with the transmission device 3 through the top end of the positioning bolt, the middle part of the positioning bolt is connected with the positioning ruler 8, the bottom end of the positioning bolt is connected with the positioning pointer, and when the servo motor drives the positioning ruler 8 to rotate horizontally, the connected transmission device 3 drives the horizontal motion guide plate 2 to move in a reciprocating mode.
Set up a plurality of sample mounting holes 4 on the horizontal movement baffle 2, sample anchor clamps 5 pass through 6 and are connected with sample mounting holes 4, fix the sample on horizontal movement baffle 2, and 5 front ends of sample anchor clamps are wrapped with clean cloth, prevent the fish tail sample. Still set up fixed guide bar mounting groove on the host computer 1, a plurality of fixed guide bar 21 are connected with host computer 1 through fixed guide bar mounting groove, and fixed guide bar mounting groove is the type of falling T recess, and fixed guide bar 21 can slide in fixed guide bar mounting groove. The fixed guide rod 21 is provided with a friction rod support frame 22, one end of the friction rod support frame 22 is sleeved on the fixed guide rod 21 and is connected with the fixed guide rod 21 through a bolt positioner 23, the friction rod support frame 22 can rotate 360 degrees around the fixed guide rod 21, testing at any position of the horizontal movement guide plate 2 is facilitated, and the other end of the friction rod support frame 22 is provided with a friction rod mounting hole for connecting a friction rod 24.
One end of the friction rod 24 penetrates through the friction rod mounting hole to be located above the sample, the other end of the friction rod is provided with the weight holder 32, the weight 33 is sleeved on the friction rod 24 and supported by the weight holder 32, and the friction rod 24 can be applied with weights 33 with different weights, so that the test under various conditions is facilitated. One end of the friction rod 24 close to the sample is provided with a friction scribing head 31, the friction scribing head 31 is in threaded connection with the friction rod 24, and a friction scribing object is coated on the friction scribing head 31 by a clamp. The cross section of the friction scribing head 31 can be round, triangular, conical, rectangular or other shapes with different sizes, and the friction scribing objects can be selected from rubber, pencils, tungsten steel, steel wool with different meshes and the like, so that the test under various conditions is convenient.
In another aspect of the invention, the method for testing the scratch resistance of the surface of the electronic glass comprises the following steps:
1) selecting a plurality of sample glass plates, scrubbing the surfaces of the sample glass plates by alcohol, drying the sample glass plates, and fixing the sample glass plates on a horizontal movement guide plate 2 through bolts 6 and a sample clamp 5;
2) selecting a weight 33 with the weight required by the test, and fixing the weight on the friction rod 24; a friction rod 24 is arranged on a fixed guide rod 21 through a friction rod support frame 22, and a friction scribing head 31 required by a test is arranged on the friction rod 24;
3) adjusting the position of the friction rod 24 to make the friction scribing head 31 align with the center of the sample glass plate;
4) setting the moving distance of the horizontal moving guide plate 2 through the positioning ruler 8, starting a servo motor to drive the horizontal moving flat plate 2 to reciprocate through the transmission device 3 for friction scribing experiments;
5) after the friction scribing experiment is finished, wiping the surface by using a clean cloth, observing whether scratches exist or not by naked eyes under light, if no scratches exist on the surfaces of a plurality of sample glass plates, repeating the steps 1-4 until the surfaces of the plurality of sample glass plates are different in state; if there is a scratch, the width of the scratch is measured under a microscope.
The friction scoring test experiment is carried out on three kinds of glass simultaneously, and the steps are as follows:
1) selecting a sample glass plate of three kinds of glass, cutting the sample glass plate into sheets of 100 x 50mm, scrubbing the surface by using alcohol, putting the sheets into an oven, drying the sheets, taking the sheets out, and fixing the sheets on a horizontal movement guide plate by using bolts 6 and a sample clamp 5;
2) selecting a weight 33 with the required weight for testing, and sleeving the weight on the friction rod 24; a friction rod 24 passes through the fixing guide rod 21, a friction rod support frame 22 is arranged on the fixing guide rod 21, the position of the fixing guide rod 21 is adjusted on the inverted T-shaped track, and the angle is adjusted by a bolt positioner 23, so that the friction rod 24 is just opposite to the center of the sample glass sheet;
3) installing a square friction scribing head 31 required by the test, and coating the friction scribing object on the friction scribing head 31 by using a clamp;
4) setting the moving distance of the horizontal moving guide plate 2, referring to fig. 1, setting the position of the needle point corresponding to the positioning rule 8 to be 15mm, when the servo motor drives the positioning rule to horizontally rotate for 90 degrees, the horizontal moving guide plate 2 moves for 15mm, and when the positioning rule rotates for 180 degrees, the moving distance of the horizontal moving guide plate 2 is 30mm, when the positioning rule rotates for 270 degrees, the horizontal moving guide plate 2 moves for 15mm towards the other direction, and when the positioning rule rotates for 360 degrees, the horizontal moving guide plate continues to move for 30mm towards the other direction, and the steps are repeated; selecting the reciprocating times in the range of 1-9999, rotating a SPEED knob arranged on a main machine to set the rotating SPEED of a servo motor, setting the SPEED for 1-200 times/min, and starting a friction scribing experiment;
5) after the friction scribing experiment is finished, the power supply of the equipment is closed, the bolt 6 is loosened, and the sample glass sheet is taken down; wiping the surface with clean cloth, observing with naked eyes under lamplight, and repeating the steps 1-4 if the three sample glass sheets have no scratch until the surface states of the three sample glass sheets are different;
6) the scratch width was then measured under a microscope: the scratch position is first outlined with a marker pen, followed by focusing under a microscope at 50 x, gradually magnifying after clearing, measuring the width of the scratch at the appropriate magnification and marking.
The method comprises the following steps of selecting weights, a friction scribing head and a friction scribing object according to different test conditions, setting reciprocating times and moving speed, then preventing a microscope from measuring scratch width, adopting three kinds of glass as three embodiments, simultaneously carrying out friction scribing test experiments, carrying out three groups of experiments, and testing results are shown in table 1:
TABLE 1 test results table
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. A testing device for the scratch resistance of the surface of electronic glass is characterized by comprising a host (1), wherein a moving guide rail (7), a transmission device (3) and a plurality of fixed guide rods (21) are arranged on the host (1),
a horizontal moving guide plate (2) is arranged on the moving guide rail (7), and a plurality of sample mounting holes (4) are formed in the horizontal moving guide plate (2);
one end of the fixed guide rod (21) is connected with the host (1) in a sliding manner, the other end of the fixed guide rod is provided with a friction rod support frame (22), a friction rod (24) is arranged on the friction rod support frame (22), a friction scribing head (31) is arranged at one end part of the friction rod (24), and the friction scribing head (31) is contacted with a sample installed in the sample installation hole (4);
the transmission device (3) is connected with a power device arranged in the main machine (1), and the transmission device (3) is used for driving the horizontal motion guide plate (2) to reciprocate on the motion guide rail (7);
one end of the positioning ruler (8) is connected with the power device, the other end of the positioning ruler (8) is connected with the transmission device (3) through a positioning bolt, and a positioning pointer for indicating the scale of the positioning bolt at the current position on the positioning ruler (8) is arranged on the positioning bolt;
a fixed guide rod groove is formed in the main machine (1), the fixed guide rod (21) is connected with the main machine (1) through the fixed guide rod groove, and the fixed guide rod (21) can horizontally slide in the fixed guide rod groove;
one end of the friction rod support frame (22) is connected with the fixed guide rod (21) through a bolt positioner (23), and the bolt positioner (23) is used for locking the fixed guide rod (21) and the friction rod support frame (22).
2. The device for testing the scratch resistance of an electronic glass surface according to claim 1, further comprising a sample clamp (5) and a bolt (6); one end of the bolt (6) is connected with the sample clamp (5), the other end of the bolt is connected with the sample mounting hole (4), the sample clamp (5) is used for clamping a sample, and anti-scratch cloth is arranged between the sample clamp (5) and the sample.
3. The device for testing the scratch resistance of the surface of the electronic glass according to claim 1, wherein a plurality of weights (33) are sleeved on one end of the friction rod (24) far away from the friction scribing head (31), and a weight holder (32) for supporting the weights (33) is arranged on the end of the friction rod (24).
4. The device for testing the scratch resistance of the surface of the electronic glass according to claim 1, wherein the other end of the friction rod support frame (22) is provided with a friction rod mounting hole, one end of the friction rod (24) penetrates through the friction rod mounting hole and is positioned above the sample, and the other end of the friction rod (24) is positioned above the friction rod mounting hole.
5. The device for testing scratch resistance of an electronic glass surface according to claim 1, wherein the friction scribing head (31) is in threaded connection with the friction bar (24).
6. The device for testing scratch resistance of an electronic glass surface according to claim 1, wherein the end of the friction scribing head (31) is coated with friction scribing material.
7. The device for testing the scratch resistance of the surface of the electronic glass as claimed in claim 1, wherein the cross section of the friction scribing head (31) is circular, triangular, conical or rectangular, and the power device is a servo motor.
8. A method for testing scratch resistance of an electronic glass surface based on the testing device of claim 1, which comprises the following steps:
s1: respectively installing a plurality of pretreated glass samples on different sample installation holes (4);
s2: selecting a friction rod (24) provided with a friction scribing head (31) with a preset shape, connecting the friction rod (24) with a fixed guide rod (21) through a friction rod support frame (22), and enabling the friction scribing head (31) to be in contact with a sample through adjusting the friction rod support frame (22);
s3: starting a power device, and driving the horizontal motion guide plate (2) to do reciprocating motion for preset times on the motion guide rail (7) through the transmission device (3);
s4: taking down all the samples, observing whether the surfaces of the samples have scratches or not, and measuring the width of the scratches under a microscope when the surfaces of the samples have the scratches; otherwise, repeating S1-S3 until the surface of the sample is scratched.
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| CN111257146B (en) * | 2020-02-20 | 2022-07-19 | 北京工业大学 | Device and method for measuring scratch resistance of surface of plate glass |
| CN114383965A (en) * | 2022-01-10 | 2022-04-22 | 吉林大学重庆研究院 | Fixed-load multi-grinding-surface type porous material sliding friction wear testing device and method |
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| CN1267719C (en) * | 2004-06-18 | 2006-08-02 | 中国科学院力学研究所 | Reciprocal and rotary type incorporated frictional wear test machine |
| JP2007292587A (en) * | 2006-04-25 | 2007-11-08 | Yokohama Rubber Co Ltd:The | Friction testing machine |
| CN104677763B (en) * | 2015-03-03 | 2017-03-01 | 沈阳工业大学 | Rubber wet grinding grain-abrasion testing machine |
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| CN107655774B (en) * | 2017-09-29 | 2020-08-11 | 苏州惠邦科信息技术有限公司 | Mobile phone surface scratch testing device |
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