CN113984493A - Liquid crystal screen compression resistance detection device and detection method thereof - Google Patents
Liquid crystal screen compression resistance detection device and detection method thereof Download PDFInfo
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- CN113984493A CN113984493A CN202111128924.6A CN202111128924A CN113984493A CN 113984493 A CN113984493 A CN 113984493A CN 202111128924 A CN202111128924 A CN 202111128924A CN 113984493 A CN113984493 A CN 113984493A
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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
- G01N3/02—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
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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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
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Abstract
The invention discloses a liquid crystal screen compression resistance detection device, which comprises: the device comprises a base, a frame fixedly arranged on the base, a lifting mechanism fixedly connected with the frame, and a detection part fixedly connected with the lifting mechanism; the detection part comprises a detection fixing column fixedly connected with the lifting mechanism, a detection fixing frame arranged below the detection fixing column, a stabilizing part fixedly connected with the detection fixing frame and a plurality of groups of detection mechanisms. According to the invention, different compressive resistances to different contact areas of the liquid crystal screen are achieved by designing the detection mechanism, the liquid crystal screen is pressed by designing the inner layer detection column and the outer layer detection columns, and then the outer layer detection columns are drawn from outside to inside, so that the contact area between the detection mechanism and the liquid crystal screen is achieved, and different compressive resistances to different contact areas of the liquid crystal screen are achieved.
Description
Technical Field
The invention relates to the field of detection, in particular to a liquid crystal screen compression resistance detection device and a detection method thereof.
Background
The Liquid Crystal Display (LCD) is one kind of flat panel display. The screen display device is used for screen display of televisions and computers. The display screen has the advantages of low power consumption, small size and low radiation.
The liquid crystal display screen uses liquid crystal solution in two pieces of polarization materials, so that the crystal can be rearranged to achieve the purpose of imaging when current passes through the liquid.
However, LCD screen is after production, need carry out and detect its crushing resistance, and then give an anti manometer of distributor, and then be convenient for the user to select and the sale of distributor, traditional detection mode, drive the detection article through elevating system basically and push down LCD screen, carry out record pressure through design pressure sensors in the detection article, until LCD screen is broken, and then accomplish detection achievement, however this kind of detection mode, the same area of contact compressive resistance of the detection article of the LCD screen of just pure detection, and can't accomplish the different compressive resistances that detect different area of contact.
Disclosure of Invention
The purpose of the invention is as follows: the utility model provides a liquid crystal display screen resistance to compression detection device to solve the above-mentioned problem that prior art exists.
The technical scheme is as follows: a liquid crystal screen compression resistance detection device comprises:
the device comprises a base, a frame fixedly arranged on the base, a lifting mechanism fixedly connected with the frame, and a detection part fixedly connected with the lifting mechanism;
the detection part comprises a detection fixing column fixedly connected with the lifting mechanism, a detection fixing frame arranged below the detection fixing column, a stabilizing part fixedly connected with the detection fixing frame and a plurality of groups of detection mechanisms.
In a further embodiment, each set of detection mechanism comprises a pressure sensor fixedly connected with the detection fixing frame, a detection shell fixedly connected with the pressure sensor, a rolling unit installed in the detection shell, and a multilayer detection column which is abutted against the rolling unit and is in sliding connection with the detection shell;
different compressive resistances to different contact areas of the liquid crystal screen are achieved by designing the detection mechanism, the liquid crystal screen is pressed by designing the inner layer detection column and the outer layer detection columns, the outer layer detection column is drawn from the outside to the inside, the contact areas of the detection mechanism and the liquid crystal screen are achieved, and different compressive resistances to different contact areas of the liquid crystal screen are achieved.
In a further embodiment, the rolling unit comprises a first cylinder and a plurality of groups of detection limiting parts which are arranged in the detection shell, a first telescopic rod arranged at the output end of the first cylinder, and a detection backing plate arranged at the end part of the first telescopic rod;
every group detects the locating part including fixed mounting detect the spacing cylinder in the casing, set up the spacing telescopic link of spacing cylinder output.
In a further embodiment, the rolling unit comprises a second cylinder fixedly installed in the detection shell, a second telescopic rod arranged at the output end of the second cylinder, a retraction cylinder installed at the end part of the second telescopic rod, and retraction telescopic rods arranged at the two ends of the retraction cylinder.
In a further embodiment, the multilayer detection column comprises an inner layer detection column fixedly connected with the detection shell, and a plurality of outer layer detection columns arranged on the circumference of the inner layer detection column;
because the compressive resistance is influenced by the contact area, the larger the area is, the larger the compressive resistance is, the contact area is gradually reduced by the design, and then different compressive resistances of different contact areas of the liquid crystal screen are gradually detected, and meanwhile, in order to avoid the phenomenon that the multilayer detection column is hollow and influence detection data, the contact area is changed from outside to inside by the design, and then the occurrence of the condition is avoided.
In a further embodiment, a retraction spring is fixedly mounted on each outer detection column;
the end part of the retraction spring is connected with the top of the detection shell.
The retraction position of the outer layer detection column driven by the retraction spring is lower than the highest height of the retraction cylinder and the retraction telescopic rod driven by the second cylinder.
The retraction position of the outer layer detection column driven by the retraction spring is lower than the highest height of the first cylinder driving the detection backing plate to rise.
In a further embodiment, the stabilizing part include with detect mount fixed connection's resilience fixed block, install resilience piece under the resilience fixed block, and with the resilience fixed block is articulated and with the resilience leg of resilience piece butt.
In a further embodiment, the lifting mechanism comprises a side plate fixedly connected with the frame, a lifting motor and a lifting slide rail which are installed on the side plate, a lifting input shaft arranged at the output end of the lifting motor, a lifting screw rod fixedly connected with the lifting input shaft, a lifting frame sleeved on the lifting screw rod, and a lifting slide block fixedly connected with the lifting frame and matched with the lifting slide rail;
the detection fixing column is fixedly connected with the lifting frame;
after detection portion detects the completion at a dynamics, through lifting mechanism lifting detection portion, detection mechanism resets the back, increases the dynamics through lifting mechanism and detects once more, and until the LCD screen damage, and then through the numerical value in the real-time recording pressure sensor, and then accomplish the different compressive forces that detect the different area of contact of LCD screen.
In a further embodiment, the base is provided with a detection table;
the detection table comprises a detection groove preset on the base and a jacking unit installed in the base;
the jacking unit comprises a lifting cylinder fixedly connected with the base, a lifting telescopic rod arranged at the output end of the lifting cylinder, a lifting bottom plate arranged at the end part of the lifting telescopic rod, a lifting guide rod fixedly connected with the lifting bottom plate, and a lifting sliding sleeve embedded in the detection groove and sleeved on the lifting guide rod;
and the end part of the lifting guide rod is fixedly provided with a detection cushion block.
A detection method of a liquid crystal screen compression resistance detection device comprises the following steps:
and step 5, after the detection part finishes detection of one force, the detection part is lifted through the lifting mechanism, after the detection mechanism is reset, the force is increased through the lifting mechanism to carry out detection again until the liquid crystal screen is damaged, and then the detection of different compressive strengths of different contact areas of the liquid crystal screen is finished by recording the numerical value in the pressure sensor in real time.
In a further embodiment, the step 4 further comprises:
after the detection part presses the liquid crystal screen, the limiting telescopic rod is driven to retract through the limiting cylinder on the outermost side, so that the limiting of the outer layer detection column on the outermost side is released, the outer layer detection column is pulled back through the retraction spring, the outer layer detection column is separated from contact with the liquid crystal screen, the contact area of the multilayer detection column and the liquid crystal screen is reduced, and different compressive resistances of different contact areas of the liquid crystal screen are achieved by gradually reducing the detection area;
after the liquid crystal display screen is pushed down by the detection part, the telescopic rod is retracted through the retraction air cylinder to gradually retract, so that the outer detection column is gradually released from the outside to the inside to be limited to the outer detection column, the outer detection column is pulled back through the retraction spring, the outer detection column is separated from the contact with the liquid crystal display screen, the contact area of the multilayer detection column and the liquid crystal display screen is reduced, and different pressure resistances of different contact areas of the liquid crystal display screen are further completed through gradually reducing the detection area.
Has the advantages that: the invention discloses a liquid crystal screen compression resistance detection device, which completes different compression resistance of different contact areas of a liquid crystal screen by designing a detection mechanism, presses the liquid crystal screen by designing an inner layer detection column and a plurality of outer layer detection columns, and then pulls the outer layer detection columns from outside to inside, thereby completing the contact area of the detection mechanism and the liquid crystal screen, and further completing different compression resistance detection of different contact areas of the liquid crystal screen.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Figure 2 is a schematic view of the lifting mechanism of the present invention.
FIG. 3 is a schematic view of the detection section of the present invention.
Fig. 4 is a schematic view of the stabilizer of the present invention.
FIG. 5 is a schematic view of the interior of the inspection station of the present invention.
FIG. 6 is a schematic diagram of an embodiment of the present invention.
FIG. 7 is a schematic diagram of a second embodiment of the present invention.
FIG. 8 is a schematic view of a multi-layered detection column of the present invention.
FIG. 9 is a schematic view of the retraction spring of the present invention.
The reference signs are: the detection device comprises a base 1, a detection platform 2, a lifting cylinder 21, a lifting telescopic rod 22, a lifting bottom plate 23, a lifting guide rod 24, a lifting sliding sleeve 25, a frame 3, a side plate 31, a lifting motor 32, a lifting screw rod 33, a lifting sliding rail 34, a lifting slider 35, a lifting frame 36, a detection part 4, a detection fixing column 41, a detection fixing frame 42, a rebound fixing block 421, a rebound sheet 422, a rebound leg 423, a detection mechanism 43, a detection shell 431, a first cylinder 432, a first telescopic rod 433, a detection base plate 434, a detection limiting part 435, an outer detection column 436, an inner detection column 437, a retraction spring 438, a second cylinder 441, a second telescopic rod 442, a retraction cylinder 443 and a retraction telescopic rod 444.
Detailed Description
The invention completes the detection work of the liquid crystal screen through the liquid crystal screen compression resistance detection device and the detection method thereof, and the scheme is specifically described through specific embodiments.
The first embodiment is as follows:
a liquid crystal screen compression resistance detection device comprises: the device comprises a base 1, a frame 3 fixedly arranged on the base 1, a lifting mechanism fixedly connected with the frame 3, and a detection part 4 fixedly connected with the lifting mechanism;
the detection part 4 comprises a detection fixing column 41 fixedly connected with the lifting mechanism, a detection fixing frame 42 installed below the detection fixing column 41, a stabilizing part fixedly connected with the detection fixing frame 42 and a plurality of groups of detection mechanisms 43.
Each group of detection mechanisms 43 comprises a pressure sensor fixedly connected with the detection fixing frame 42, a detection shell 431 fixedly connected with the pressure sensor, a rolling unit installed in the detection shell 431, and a multi-layer detection column which is abutted against the rolling unit and is in sliding connection with the detection shell 431;
different compressive resistances to different contact areas of the liquid crystal screen are achieved by designing the detection mechanism 43, the liquid crystal screen is pressed by designing the inner detection column 437 and the outer detection columns 436, and then the outer detection column 436 is drawn out from the outside to the inside, so that the contact areas of the detection mechanism 43 and the liquid crystal screen are achieved, and different compressive resistances to different contact areas of the liquid crystal screen are achieved.
The rolling unit comprises a first cylinder 432 and a plurality of groups of detection limit parts 435 which are arranged in the detection shell 431, a first telescopic rod 433 arranged at the output end of the first cylinder 432, and a detection base plate 434 arranged at the end part of the first telescopic rod 433;
each set of detecting position-limiting members 435 includes a position-limiting cylinder fixedly mounted in the detecting housing 431 and a position-limiting telescopic rod provided at an output end of the position-limiting cylinder.
The multilayer detection column comprises an inner layer detection column 437 fixedly connected with the detection shell 431, and a plurality of outer layer detection columns 436 arranged on the circumference of the inner layer detection column 437;
because the compressive resistance is influenced by the contact area, the larger the area is, the larger the compressive resistance is, the contact area is gradually reduced by the design, and then different compressive resistances of different contact areas of the liquid crystal screen are gradually detected, and meanwhile, in order to avoid the phenomenon that the multilayer detection column is hollow and influence detection data, the contact area is changed from outside to inside by the design, and then the occurrence of the condition is avoided.
A retraction spring 438 is fixedly mounted on each outer detection column 436;
the end of the retraction spring 438 is attached to the top of the detection housing 431.
The retraction spring 438 drives the outer layer detection column 436 to retract to a position lower than the maximum height at which the second cylinder 441 drives the retraction cylinder 443 and the retraction telescopic rod 444 to ascend.
The retraction spring 438 drives the outer layer detection post 436 to a retracted position lower than the maximum height at which the first cylinder 432 drives the detection pad 434 to ascend.
The stabilizing part include with detect mount 42 fixed connection's resilience fixed block 421, install resilience piece 422 under the resilience fixed block 421, and with resilience fixed block 421 articulated and with resilience leg 423 of resilience piece 422 butt.
The lifting mechanism comprises a side plate 31 fixedly connected with the frame 3, a lifting motor 32 and a lifting slide rail 34 which are installed on the side plate 31, a lifting input shaft arranged at the output end of the lifting motor 32, a lifting screw rod 33 fixedly connected with the lifting input shaft, a lifting frame 36 sleeved on the lifting screw rod 33, and a lifting slide block 35 fixedly connected with the lifting frame 36 and matched with the lifting slide rail 34;
the detection fixing column 41 is fixedly connected with the lifting frame 36;
after detection portion 4 detects the completion at a dynamics, through lifting mechanism lifting detection portion 4, detection mechanism 43 resets the back, increases the dynamics through lifting mechanism and detects once more, and until the LCD screen damages, and then through the numerical value in the real-time recording pressure sensors, and then accomplish the different resistance to pressure that detect the different area of contact of LCD screen.
The base 1 is provided with a detection table 2;
the detection table 2 comprises a detection groove preset on the base 1 and a jacking unit installed in the base 1;
the jacking unit comprises a lifting cylinder 21 fixedly connected with the base 1, a lifting telescopic rod 22 arranged at the output end of the lifting cylinder 21, a lifting bottom plate 23 arranged at the end part of the lifting telescopic rod 22, a lifting guide rod 24 fixedly connected with the lifting bottom plate 23, and a lifting sliding sleeve 25 embedded in the detection groove and sleeved on the lifting guide rod 24;
and the end part of the lifting guide rod 24 is fixedly provided with a detection cushion block.
Description of the working principle: firstly, a liquid crystal screen is placed on a detection cushion block, a lifting telescopic rod 22 is driven to move through a lifting cylinder 21, then a lifting bottom plate 23 is driven to sink, a lifting guide rod 24 is driven to sink, and then the detection cushion block is driven to sink to be flush with the bottom surface of a detection groove; the lifting mechanism drives the detection part 4 to press the liquid crystal screen, the lifting motor 32 drives the lifting input shaft to rotate, the lifting screw rod 33 is driven to rotate, the lifting frame 36 is driven to slide along the lifting slide rail 34, and the work of driving the detection part 4 to press the liquid crystal screen is further completed; when the detection part 4 presses the liquid crystal screen, the liquid crystal screen is stabilized through the stabilizing part, when the detection part 4 presses the liquid crystal screen, the liquid crystal screen is pressed through the rebounding leg 423, when the detection part 4 continues to press, the rebounding leg 423 bends to adapt to the pressing amplitude, and in the bending process of the rebounding leg 423, the rebounding leg 422 contacts the rebounding sheet 422, and the liquid crystal screen is stabilized through the preset pressure given by the rebounding sheet 422; after the detection part 4 presses the liquid crystal screen, the pressure resistance of different positions of the liquid crystal screen is detected through the plurality of groups of detection mechanisms 43, when the detection part 4 presses the liquid crystal screen, the liquid crystal screen is extruded through the multilayer detection columns, the limitation on the multilayer detection columns is abandoned through the calendering unit, and therefore the contact area between the multilayer detection columns and the liquid crystal screen is gradually reduced, and different pressure resistance of different contact areas of the liquid crystal screen is detected; when the detection part 4 finishes detection of one force, the detection part 4 is lifted through the lifting mechanism, after the detection mechanism 43 is reset, the force is increased through the lifting mechanism for secondary detection until the liquid crystal screen is damaged, and then the detection of different compressive strengths of different contact areas of the liquid crystal screen is finished by recording the numerical value in the pressure sensor in real time;
before the detection part 4 presses the liquid crystal screen, the first air cylinder 432 drives the first telescopic rod 433 to stretch and retract so as to drive the detection base plate 434 to sink, and then the outer detection columns 436 are pressed to be flush with the bottom of the inner detection column 437, and when the outer detection columns 436 are pressed to be flush with the bottom of the inner detection column 437, the limiting air cylinder drives the limiting telescopic rod to press the outer detection columns 436, so that the preliminary detection work is completed;
after the detection part 4 presses the liquid crystal screen, the limiting telescopic rod is driven to retract through the limiting cylinder on the outermost side, so that the limiting of the outer layer detection column 436 on the outermost side is released, the outer layer detection column 436 is pulled back through the retraction spring 438, the outer layer detection column 436 is separated from contact with the liquid crystal screen, the contact area of the multilayer detection column and the liquid crystal screen is reduced, and different compressive strengths of different contact areas of the liquid crystal screen are achieved by gradually reducing the detection area;
embodiment mode two:
the rolling unit may be further replaced with a second cylinder 441 fixedly installed in the inspection housing 431, a second telescopic rod 442 disposed at an output end of the second cylinder 441, a retracting cylinder 443 installed at an end of the second telescopic rod 442, and retracting telescopic rods 444 disposed at both ends of the retracting cylinder 443, without changing the remaining components.
Description of the working principle: firstly, a liquid crystal screen is placed on a detection cushion block, a lifting telescopic rod 22 is driven to move through a lifting cylinder 21, then a lifting bottom plate 23 is driven to sink, a lifting guide rod 24 is driven to sink, and then the detection cushion block is driven to sink to be flush with the bottom surface of a detection groove; the lifting mechanism drives the detection part 4 to press the liquid crystal screen, the lifting motor 32 drives the lifting input shaft to rotate, the lifting screw rod 33 is driven to rotate, the lifting frame 36 is driven to slide along the lifting slide rail 34, and the work of driving the detection part 4 to press the liquid crystal screen is further completed; when the detection part 4 presses the liquid crystal screen, the liquid crystal screen is stabilized through the stabilizing part, when the detection part 4 presses the liquid crystal screen, the liquid crystal screen is pressed through the rebounding leg 423, when the detection part 4 continues to press, the rebounding leg 423 bends to adapt to the pressing amplitude, and in the bending process of the rebounding leg 423, the rebounding leg 422 contacts the rebounding sheet 422, and the liquid crystal screen is stabilized through the preset pressure given by the rebounding sheet 422; after the detection part 4 presses the liquid crystal screen, the pressure resistance of different positions of the liquid crystal screen is detected through the plurality of groups of detection mechanisms 43, when the detection part 4 presses the liquid crystal screen, the liquid crystal screen is extruded through the multilayer detection columns, the limitation on the multilayer detection columns is abandoned through the calendering unit, and therefore the contact area between the multilayer detection columns and the liquid crystal screen is gradually reduced, and different pressure resistance of different contact areas of the liquid crystal screen is detected; when the detection part 4 finishes detection of one force, the detection part 4 is lifted through the lifting mechanism, after the detection mechanism 43 is reset, the force is increased through the lifting mechanism for secondary detection until the liquid crystal screen is damaged, and then the detection of different compressive strengths of different contact areas of the liquid crystal screen is finished by recording the numerical value in the pressure sensor in real time;
before the detection part 4 presses the liquid crystal screen, the second cylinder 441 drives the second telescopic rod 442 to stretch and retract so as to drive the retraction cylinder 443 to descend and further drive the retraction telescopic rod 444 to press the bottom of the outer detection column 436 to be flush with the bottom of the inner detection column 437, and when the outer detection column 436 is pressed to be flush with the bottom of the inner detection column 437, the movement is stopped, so that the preliminary detection work is completed;
after the detection part 4 presses the liquid crystal screen, the retraction telescopic rod 444 is understood to retract gradually through the retraction cylinder 443, and then the outer detection column 436 is gradually released from the outside to the inside to be limited, and then the outer detection column 436 is pulled back through the retraction spring 438, so that the outer detection column 436 is separated from the contact with the liquid crystal screen, and then the contact area of the multilayer detection column and the liquid crystal screen is reduced, and then different compressive forces of different contact areas of the liquid crystal screen are completed by gradually reducing the detection area.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes can be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are within the protection scope of the present invention.
Claims (10)
1. A liquid crystal screen compression resistance detection device comprises:
the device comprises a base, a frame fixedly arranged on the base, a lifting mechanism fixedly connected with the frame, and a detection part fixedly connected with the lifting mechanism;
the lifting mechanism is characterized in that the detection part comprises a detection fixing column fixedly connected with the lifting mechanism, a detection fixing frame arranged below the detection fixing column, a stabilizing part fixedly connected with the detection fixing frame and a plurality of groups of detection mechanisms.
2. The device of claim 1, wherein each set of detecting mechanism comprises a pressure sensor fixedly connected to the detecting fixing frame, a detecting housing fixedly connected to the pressure sensor, a rolling unit installed in the detecting housing, and a plurality of layers of detecting columns abutting against the rolling unit and slidably connected to the detecting housing.
3. The device for detecting the compression resistance of the liquid crystal screen as claimed in claim 2, wherein the rolling unit comprises a first cylinder and a plurality of groups of detection limiting parts which are arranged in the detection shell, a first telescopic rod which is arranged at the output end of the first cylinder, and a detection backing plate which is arranged at the end part of the first telescopic rod;
every group detects the locating part including fixed mounting detect the spacing cylinder in the casing, set up the spacing telescopic link of spacing cylinder output.
4. The device for detecting the compression resistance of the liquid crystal screen as claimed in claim 2, wherein the rolling unit comprises a second cylinder fixedly installed in the detection housing, a second telescopic rod arranged at the output end of the second cylinder, a retracting cylinder installed at the end of the second telescopic rod, and retracting telescopic rods arranged at the two ends of the retracting cylinder.
5. The device for detecting the compression resistance of the liquid crystal screen as claimed in claim 2, wherein the plurality of layers of detection columns comprise an inner layer detection column fixedly connected with the detection shell and a plurality of outer layer detection columns arranged on the circumference of the inner layer detection column.
6. The device for detecting the resistance to compression of the liquid crystal screen as claimed in claim 1, wherein a retraction spring is fixedly installed on each outer layer detection column; the end part of the retraction spring is connected with the top of the detection shell.
7. The liquid crystal screen compression-resistant detection device of claim 1, wherein the stabilizing portion comprises a rebound fixing block fixedly connected with the detection fixing frame, a rebound sheet installed below the rebound fixing block, and a rebound leg hinged with the rebound fixing block and abutted against the rebound sheet.
8. The liquid crystal display screen compression-resistant detection device of claim 1, wherein the lifting mechanism comprises a side plate fixedly connected with the frame, a lifting motor and a lifting slide rail mounted on the side plate, a lifting input shaft arranged at an output end of the lifting motor, a lifting screw rod fixedly connected with the lifting input shaft, a lifting frame sleeved on the lifting screw rod, and a lifting slider fixedly connected with the lifting frame and adapted to the lifting slide rail;
the detection fixing column is fixedly connected with the lifting frame.
9. The liquid crystal screen compression-resistant detection device as claimed in claim 1, wherein a detection platform is arranged on the base;
the detection table comprises a detection groove preset on the base and a jacking unit installed in the base;
the jacking unit comprises a lifting cylinder fixedly connected with the base, a lifting telescopic rod arranged at the output end of the lifting cylinder, a lifting bottom plate arranged at the end part of the lifting telescopic rod, a lifting guide rod fixedly connected with the lifting bottom plate, and a lifting sliding sleeve embedded in the detection groove and sleeved on the lifting guide rod;
and the end part of the lifting guide rod is fixedly provided with a detection cushion block.
10. A detection method of a liquid crystal screen compression resistance detection device is characterized by comprising the following steps:
step 1, firstly, a liquid crystal screen is placed on a detection cushion block, a lifting telescopic rod is driven to move through a lifting air cylinder, then a lifting bottom plate is driven to sink, a lifting guide rod is driven to sink, and then the detection cushion block is driven to sink to be flush with the bottom surface of a detection groove;
step 2, driving the detection part to press the liquid crystal screen through the lifting mechanism, driving the lifting input shaft to rotate through the lifting motor, driving the lifting screw rod to rotate, driving the lifting frame to slide along the lifting slide rail, and further finishing the work of driving the detection part to press the liquid crystal screen;
step 3, when the detection part presses the liquid crystal screen, the liquid crystal screen is stabilized through the stabilization part, when the detection part presses the liquid crystal screen, the liquid crystal screen is pressed through the rebounding leg, when the detection part continues to press, the rebounding leg is bent to adapt to the pressing amplitude, and in the bending process of the rebounding leg, the rebounding piece is contacted, and the liquid crystal screen is stabilized through preset pressure given by the rebounding piece;
step 4, after the liquid crystal screen is pressed by the detection part, the pressure resistance of different positions of the liquid crystal screen is detected through a plurality of groups of detection mechanisms, when the liquid crystal screen is pressed by the detection part, the liquid crystal screen is pressed through the multilayer detection columns, the limiting of the multilayer detection columns is abandoned through the calendering unit, the contact area of the multilayer detection columns and the liquid crystal screen is gradually reduced, and then different pressure resistance of different contact areas of the liquid crystal screen is detected;
and step 5, after the detection part finishes detection of one force, the detection part is lifted through the lifting mechanism, after the detection mechanism is reset, the force is increased through the lifting mechanism to carry out detection again until the liquid crystal screen is damaged, and then the detection of different compressive strengths of different contact areas of the liquid crystal screen is finished by recording the numerical value in the pressure sensor in real time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111128924.6A CN113984493A (en) | 2021-09-26 | 2021-09-26 | Liquid crystal screen compression resistance detection device and detection method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111128924.6A CN113984493A (en) | 2021-09-26 | 2021-09-26 | Liquid crystal screen compression resistance detection device and detection method thereof |
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| Publication Number | Publication Date |
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| CN113984493A true CN113984493A (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111128924.6A Withdrawn CN113984493A (en) | 2021-09-26 | 2021-09-26 | Liquid crystal screen compression resistance detection device and detection method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973242A (en) * | 2023-09-22 | 2023-10-31 | 江苏华恬节能科技有限公司 | Polyurethane product high-temperature illumination deformation detection equipment and detection method thereof |
-
2021
- 2021-09-26 CN CN202111128924.6A patent/CN113984493A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116973242A (en) * | 2023-09-22 | 2023-10-31 | 江苏华恬节能科技有限公司 | Polyurethane product high-temperature illumination deformation detection equipment and detection method thereof |
| CN116973242B (en) * | 2023-09-22 | 2023-11-28 | 江苏华恬节能科技有限公司 | Polyurethane product high-temperature illumination deformation detection equipment and detection method thereof |
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Application publication date: 20220128 |
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