Screen detection device and detection method for display screen production

Abstract

The invention relates to the technical field of pressing detection, in particular to a screen detection device for display screen production and a detection method.The screen detection device comprises a bottom frame, concave frames are movably installed on the two sides of the upper surface of the bottom frame through telescopic mechanisms correspondingly, the concave frames on the two sides are symmetrically distributed, and two transverse rods are fixedly connected to the inner wall of each concave frame; the invention further provides a screen detection method for display screen production, a produced computer display screen product can be directly detected, independent detection of a display panel in the production process is not needed, and the detection result aims at a final product and is more objective; during detection, the rear surface of the screen main body is supported by adopting a latticed structure, so that the screen main body is prevented from being bent during detection to influence pressing force application; a user can conveniently and rapidly arrange the display screen, and use is convenient and fast; any position of the front surface of the screen body can be subjected to pressing detection, and detection is more comprehensive.

Description

Technical Field

[0001] The present invention relates to the field of pressure detection technology, and in particular to a screen detection device and a detection method for display screen production. Background Art

[0002] Display surface pressure testing is a test method to evaluate the deformation ability and stability of the display under force. This test is designed to simulate the external force applied to the screen in real-life scenarios, such as finger pressure or mechanical squeezing, to determine whether the screen will be significantly deformed or damaged.

[0003] The computer display screen supports the screen body through the bracket so that the display screen can be placed stably on the desktop.

[0004] In the existing testing equipment, it is difficult to adapt the testing for display screens with supports. After being placed on the testing table, the screen body is tilted due to the presence of the supports, making the testing difficult. It is usually necessary to customize specific support parts to ensure the horizontal arrangement of the display screen, or to take out the display panel of the screen separately for testing during the production process. The test results are relatively one-sided and can only represent the strength test of the display panel, and cannot objectively reflect the performance of the screen in the press test. Therefore, we propose a screen testing device and method for display screen production to more objectively realize the press test of the display screen. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings existing in the background technology and to propose a screen detection device and a detection method for display screen production.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a screen detection device for display screen production, including a base frame, recessed frames are movably installed on both sides of the upper surface of the base frame through a telescopic mechanism, the recessed frames on both sides are symmetrically distributed, two transverse rods are fixedly connected to the inner wall of each recessed frame, one end of the two transverse rods is commonly fixedly connected to a vertical rod, and the upper and lower ends of the vertical rods are respectively fixedly connected to the inner surface of the recessed frame, two movable rods are slidably connected to the adjacent sides of the vertical rods on both sides, an adjustment mechanism is arranged between the two movable rods on each side, limit blocks are movably installed at the adjacent corners of the upper surfaces of the recessed frames on both sides through an elastic mechanism, chamfered corners are respectively provided at the adjacent corners of the two limit blocks, a detection head is movably installed on the upper surface of the base frame through an XYZ axis servo mechanism, and the detection head is located in front of the recessed frame; When arranging the display screen, the rear surface of the screen body is attached to the front surface of the recessed frame, and when the recessed frames on both sides are close to each other, the two limit blocks are against the front surface of the support; After the recessed frames on both sides are close to each other, the movable rods are respectively located above and below the connection between the support and the screen body.

[0007] Preferably, the telescopic mechanism includes a seat fixedly mounted on the rear side of the upper surface of the base frame, a side plate fixedly mounted on the side of the upper surface of the seat, a transverse cylinder and a first guide cylinder fixedly mounted on the outer surface of one side of the side plate, a first guide rod slidably inserted into the port of the first guide cylinder, and one end of the first guide rod and the telescopic end of the transverse cylinder are fixedly connected to the side surface of the recessed frame.

[0008] Preferably, a rear baffle is fixedly mounted on the rear edge of the upper surface of the cushion seat, and the front surface of the rear baffle is movably attached to the rear surface of the recessed frame.

[0009] Preferably, the adjustment mechanism includes a fixing plate fixedly connected to the side surface of the vertical rod, a threaded rod slidingly passing through the upper surface of the fixing plate, and the outer surface fixing sleeve of the threaded rod is provided with two limit sleeves, and the two limit sleeves are movably attached to the upper and lower surfaces of the fixing plate respectively, the threaded rod threads pass through the inner sides of the two movable rods, and the upper end of the threaded rod is fixedly connected to a polygonal head.

[0010] Preferably, a vertical opening is formed on the side surface of the vertical rod, and the end of the movable rod is slidably inserted into the inner side of the vertical opening.

[0011] Preferably, the elastic mechanism includes a fixing seat fixedly installed at the corner of the upper surface of the recessed frame, a plurality of compression springs are fixedly connected to the front surface of the fixing seat, the front end of the compression spring is fixedly connected to the rear surface of the limit block, and the side of the limit block is slidably fitted with the fixing seat in the front-to-back direction.

[0012] Preferably, a convex rail is fixedly connected to an inner wall of one side of the fixing seat, a sliding opening is opened on one side of the limiting block, and the sliding opening is slidably sleeved on the outer surface of the convex rail.

[0013] Preferably, the XYZ-axis servo mechanism includes a sliding frame slidably installed on the upper surface of the base frame along the front-to-back direction, a longitudinal cylinder and a second guide cylinder are fixedly installed on the front edge of the upper surface of the base frame, a second guide rod is slidably inserted into the rear port of the second guide cylinder, the rear end of the second guide rod and the telescopic end of the longitudinal cylinder are respectively fixedly connected to the front surface of the sliding frame, a transverse-axis servo mechanism is fixedly installed on the rear surface of the sliding frame, a vertical-axis servo mechanism is fixedly installed on the movable end of the transverse-axis servo mechanism, a slide is fixedly connected to the movable end of the vertical-axis servo mechanism, and the rear surface of the slide is fixedly connected to the front end of the detection head.

[0014] Preferably, slide rails are fixedly installed on both sides of the upper surface of the base frame, slide seats are fixedly installed on both sides of the lower surface of the sliding frame, the slide seats are slidably mounted on the outer surfaces of the slide rails, and wheels are installed at the corners of the lower surface of the base frame.

[0015] A screen detection device method for display screen production is also proposed, which is carried out using the above device and includes the following steps: S1. The user turns the display screen upside down, and the handheld display screen is at the upper end of the support; S2, placing the screen body downward against the front surfaces of the two recessed frames, and keeping the screen body in the middle of the two recessed frames as much as possible; S3, control the telescopic mechanisms on both sides to push the recessed frames on both sides to move closer to each other, and stop when the ends of the recessed frames on both sides abut against each other, and then release the hands to complete the arrangement of the display screen; S4. Controlling the XYZ servo mechanism to make the detection head press multiple points on the front surface of the screen body to perform a press detection.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can directly test the produced computer display screen products without the need to perform separate testing of the display panel during the production process. The test results are more objective for the final product; 2. The present invention adopts a grid-like structure to support the rear surface of the screen body during detection, so as to prevent the screen body from bending during detection and affecting the pressing force; 3. The present invention can facilitate users to quickly arrange the display screen, and is easy to use; 4. The present invention can perform pressure detection on any position of the front surface of the screen body, and the detection is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a screen detection device for display screen production according to the present invention; Figure 2 It is a schematic structural diagram of another viewing angle of a screen detection device for display screen production of the present invention; Figure 3 It is a schematic diagram of a telescopic mechanism of a screen detection device for display screen production according to the present invention; Figure 4 It is a schematic diagram of a recessed frame of a screen detection device for display screen production according to the present invention; Figure 5 It is a cross-sectional view of a fixing seat of a screen detection device for display screen production according to the present invention; Figure 6 A cross-sectional view of a recessed frame of a screen detection device for display screen production according to the present invention; Figure 7 It is a schematic diagram of an XYZ axis servo mechanism of a screen detection device for display screen production according to the present invention; Figure 8 It is a schematic diagram of a screen detection device for display screen production according to the present invention during detection; Fig. 9A schematic diagram of a display screen detected by a screen detection device and a detection method for display screen production according to the present invention.

[0018] 1. Base frame; 2. Cushion seat; 3. Concave frame; 4. Vertical rod; 5. Horizontal rod; 6. Movable rod; 7. Vertical opening; 8. Fixed plate; 9. Threaded rod; 10. Limit sleeve; 11. Polygonal head; 12. Fixed seat; 13. Limit block; 14. Bevel angle; 15. Compression spring; 16. Convex rail; 17. Slide; 18. Side plate; 19. Horizontal cylinder; 20. First guide cylinder; 21. First guide rod; 22. Rear baffle; 23. Sliding frame; 24. Longitudinal cylinder; 25. Second guide cylinder; 26. Second guide rod; 27. Horizontal axis servo mechanism; 28. Vertical axis servo mechanism; 29. ​​Slide; 30. Detection head; 31. Slide rail; 32. Slide seat; 33. Wheel; 34. Screen body; 35. Support. DETAILED DESCRIPTION

[0019] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0020] like Figure 1-Figure 9 A screen detection device for display screen production shown in the figure comprises a base frame 1, recessed frames 3 are movably installed on both sides of the upper surface of the base frame 1 through a telescopic mechanism, and the recessed frames 3 on both sides are symmetrically distributed. Two transverse rods 5 are fixedly connected to the inner wall of each recessed frame 3, and one end of the two transverse rods 5 is commonly fixedly connected to a vertical rod 4, and the upper and lower ends of the vertical rod 4 are respectively fixedly connected to the inner surface of the recessed frame 3, and two movable rods 6 are slidably connected to the adjacent sides of the vertical rods 4 on both sides, and an adjustment mechanism is arranged between the two movable rods 6 on each side, and limit blocks 13 are movably installed at the adjacent corners of the upper surfaces of the recessed frames 3 on both sides through an elastic mechanism, and chamfered corners 14 are respectively provided at the adjacent corners of the two limit blocks 13, and a detection head 30 is movably installed on the upper surface of the base frame 1 through an XYZ axis servo mechanism, and the detection head 30 is located in front of the recessed frame 3; Display screen Figure 8 As shown, it includes a screen body 34 and a support 35 fixedly mounted on a surface.

[0021] like Figure 7 As shown, in the arrangement of the display screen, the rear surface of the screen body 34 is attached to the front surface of the recessed frame 3, and after the recessed frames 3 on both sides are close to each other, the two limit blocks 13 are against the front surface of the support 35; After the recessed frames 3 on both sides are close to each other, the movable rods 6 are respectively located above and below the connection between the support 35 and the screen body 34.

[0022] like Figure 3As shown, the telescopic mechanism includes a cushion seat 2 fixedly mounted on the rear side of the upper surface of the base frame 1, a side plate 18 fixedly mounted on the side of the upper surface of the cushion seat 2, a transverse cylinder 19 and a first guide cylinder 20 fixedly mounted on the outer surface of one side of the side plate 18, a first guide rod 21 slidably inserted into the port of the first guide cylinder 20, and one end of the first guide rod 21 and the telescopic end of the transverse cylinder 19 are fixedly connected to the side surface of the recessed frame 3. When the transverse cylinder 19 is extended and retracted, the first guide rod 21 will slide relatively along the inner side of the first guide cylinder 20, thereby improving the stability of the recessed frame 3 when it moves horizontally.

[0023] A rear baffle 22 is fixedly mounted on the rear edge of the upper surface of the cushion seat 2, and the front surface of the rear baffle 22 is movably attached to the rear surface of the recessed frame 3. The rear baffle 22 plays a supporting role. Since the recessed frame 3 is subjected to rearward pressure during the pressing test, the rear baffle 22 plays a role in improving the stability of the recessed frame 3, preventing the recessed frame 3 from moving backward and causing damage to the transverse cylinder 19.

[0024] like Figure 6 As shown, the adjustment mechanism includes a fixing plate 8 fixedly connected to the side surface of the vertical rod 4, a threaded rod 9 slidingly penetrating the upper surface of the fixing plate 8, and two limit sleeves 10 are fixedly provided on the outer surface of the threaded rod 9. The two limit sleeves 10 are movably attached to the upper and lower surfaces of the fixing plate 8, respectively. The threaded rod 9 is threadedly penetrating the inner side of the two movable rods 6, and the upper end of the threaded rod 9 is fixedly connected with a polygonal head 11. The polygonal head 11 is convenient for the user to rotate the threaded rod 9 with the help of a wrench. The threads on the surface of the threaded rod 9 are symmetrical up and down, and the upper and lower movable rods 6 are moved in the direction of approaching or moving away from each other during rotation.

[0025] A vertical opening 7 is formed on the side surface of the vertical rod 4, and the end of the movable rod 6 slides into the inner side of the vertical opening 7. The stability of the movable rod 6 in the up and down movement is improved. At the same time, due to the pressure detection, this position may be subjected to pressure, which prevents the movable rod 6 from being displaced by the pressure and causing the threaded rod 9 to bend.

[0026] like Figure 4 , Figure 5 As shown, the elastic mechanism includes a fixing seat 12 fixedly mounted at the corner of the upper surface of the recessed frame 3, a plurality of compression springs 15 are fixedly connected to the front surface of the fixing seat 12, the front end of the compression spring 15 is fixedly connected to the rear surface of the limit block 13, and the side of the limit block 13 and the fixing seat 12 are slidably matched along the front-back direction. Specifically, the sliding match uses the following scheme: a convex rail 16 is fixedly connected to the inner wall of one side of the fixing seat 12, a sliding opening 17 is provided on one side of the limit block 13, and the sliding opening 17 is slidably sleeved on the outer surface of the convex rail 16. This allows the limit block 13 to move forward and backward relative to the fixing seat 12.

[0027] like Figure 1 , Figure 2 , Figure 7As shown, the XYZ axis servo mechanism includes a sliding frame 23 slidably installed on the upper surface of the base frame 1 along the front-to-back direction, a longitudinal cylinder 24 and a second guide cylinder 25 are fixedly installed on the front edge of the upper surface of the base frame 1, a second guide rod 26 is slidably inserted into the rear port of the second guide cylinder 25, the rear end of the second guide rod 26 and the telescopic end of the longitudinal cylinder 24 are respectively fixedly connected to the front surface of the sliding frame 23, when the longitudinal cylinder 24 is extended and retracted, the second guide rod 26 will slide back and forth relatively to the inner side of the second guide cylinder 25, so as to improve the stability of the sliding frame 23 during movement, a transverse axis servo mechanism 27 is fixedly installed on the rear surface of the sliding frame 23, a vertical axis servo mechanism 28 is fixedly installed on the movable end of the transverse axis servo mechanism 27, a slide table 29 is fixedly connected to the movable end of the vertical axis servo mechanism 28, and the rear surface of the slide table 29 is fixedly connected to the front end of the detection head 30. The horizontal axis servo mechanism 27 and the vertical axis servo mechanism 28 are both common mechanisms for controlling the flexible displacement of the detection head 30 . Together with the design of the base 2 , it ensures that the detection head 30 can contact any position on the front surface of the screen body 34 .

[0028] Slide rails 31 are fixedly installed on both sides of the upper surface of the bottom frame 1, and slide seats 32 are fixedly installed on both sides of the lower surface of the sliding frame 23. The slide seats 32 are slidably mounted on the outer surface of the slide rails 31. When the sliding frame 23 moves forward and backward, the slide seats 32 slide along the surface of the slide rails 31 at the same time, thereby improving the stability of the sliding frame 23 during movement. Wheels 33 are respectively installed at the corners of the lower surface of the bottom frame 1. The wheels 33 facilitate the movement of the entire device.

[0029] The user turns the display screen upside down and holds the display screen at the upper end of the support 35. Then, the screen body 34 is placed downward against the front surfaces of the two recessed frames 3, and the screen body 34 is kept as close to the middle position of the two recessed frames 3 as possible. The horizontal cylinder 19 is controlled to extend so that the recessed frames 3 on both sides move closer to each other. During this process, when the limit block 13 moves horizontally, the chamfered angle 14 will contact the front surface of the support 35 and push each other. The limit block 13 will move forward and squeeze the compression spring 15. When the ends of the recessed frames 3 on both sides abut against each other, they stop. The limit block 13 will abut against the front surface of the support 35, and the recessed frame 3 will support the rear surface of the screen body 34. The combined effect keeps the display screen stable. At this time, let go to complete the arrangement of the display screen. By controlling the extension of the longitudinal cylinder 24, the sliding frame 23 is moved backward, and the detection head 30 will apply pressure to the front surface of the screen body 34 to perform a press detection. Since the rear surface of the screen body 34 is supported by the grid structure composed of the recessed frame 3, the transverse rod 5, the vertical rod 4 and the movable rod 6, the screen body 34 can be better kept from being bent as a whole to affect the force applied by the detection head 30 during the press detection. The user can understand the detection effect in real time by observing whether the screen body 34 is broken. By controlling the operation of the transverse axis servo mechanism 27, the lateral displacement of the detection head 30 can be achieved, and by controlling the operation of the vertical axis servo mechanism 28, the up and down movement of the detection head 30 can be achieved. Therefore, through regulation, the detection head 30 can achieve a dead-angle press detection at various positions on the front surface of the screen body 34, and the detection is more comprehensive.

[0030] The user rotates the polygonal head 11 to rotate the threaded rod 9, thereby controlling the upper and lower movable rods 6 to move closer to or away from each other, so that when the two recessed frames 3 are approaching, the ends of the two movable rods 6 will not contact the connection between the screen body 34 and the support 35.

[0031] A screen detection device method for display screen production is also proposed, which is carried out using the above device and includes the following steps: S1, the user turns the display screen upside down, and the handheld display screen is at the upper end position of the support 35; S2, placing the screen body 34 downward against the front surfaces of the two recessed frames 3, and keeping the screen body 34 in the middle of the two recessed frames 3 as much as possible; S3, control the telescopic mechanisms on both sides to push the recessed frames 3 on both sides to move closer to each other, and stop when the ends of the recessed frames 3 on both sides abut against each other, and then release the hands to complete the arrangement of the display screen; S4. Control the XYZ servo mechanism to make the detection head 30 press multiple points on the front surface of the screen body 34 to perform pressure detection.

[0032] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A screen detection device for display screen production, comprising a base frame (1), characterized in that: The two sides of the upper surface of the base frame (1) are movably mounted with recessed frames (3) through telescopic mechanisms, the recessed frames (3) on the two sides are symmetrically distributed, two transverse rods (5) are fixedly connected to the inner wall of each recessed frame (3), one end of the two transverse rods (5) is commonly fixedly connected to a vertical rod (4), and the upper and lower ends of the vertical rod (4) are respectively fixedly connected to the inner surface of the recessed frame (3), and the adjacent sides of the vertical rods (4) on the two sides are respectively slidably connected with two movable rods (6), and an adjustment mechanism is arranged between the two movable rods (6) on each side, and the adjacent corners of the upper surfaces of the recessed frames (3) on the two sides are movably mounted with limit blocks (13) through elastic mechanisms, and the adjacent corners of the two limit blocks (13) are respectively provided with chamfered corners (14), and the upper surface of the base frame (1) is movably mounted with a detection head (30) through an XYZ axis servo mechanism, and the detection head (30) is located in front of the recessed frame (3); In arranging the display screen, the rear surface of the screen body (34) is attached to the front surface of the recessed frame (3), and when the recessed frames (3) on both sides are close to each other, the two limit blocks (13) are abutted against the front surface of the support (35); When the recessed frames (3) on both sides are close to each other, the movable rods (6) are respectively located above and below the connection between the support (35) and the screen body (34).

2. A screen detection device for display screen production according to claim 1, characterized in that: The telescopic mechanism comprises a seat (2) fixedly mounted on the rear side of the upper surface of the base frame (1); a side plate (18) is fixedly mounted on the side edge of the upper surface of the seat (2); a transverse cylinder (19) and a first guide cylinder (20) are fixedly mounted on the outer surface of one side of the side plate (18); a first guide rod (21) is slidably inserted into the port of the first guide cylinder (20); one end of the first guide rod (21) and the telescopic end of the transverse cylinder (19) are fixedly connected to the side surface of the recessed frame (3).

3. A screen detection device for display screen production according to claim 2, characterized in that: A rear baffle (22) is fixedly mounted on the rear edge of the upper surface of the cushion seat (2), and the front surface of the rear baffle (22) is movably attached to the rear surface of the recessed frame (3).

4. The screen detection device for display screen production according to claim 1, characterized in that: The adjustment mechanism comprises a fixing plate (8) fixedly connected to the side surface of the vertical rod (4), a threaded rod (9) slidably penetrating the upper surface of the fixing plate (8), the outer surface of the threaded rod (9) being fixedly sleeved with two limit sleeves (10), the two limit sleeves (10) being movably attached to the upper and lower surfaces of the fixing plate (8), the threaded rod (9) being threadedly penetrating the inner sides of the two movable rods (6), and the upper end of the threaded rod (9) being fixedly connected with a multi-angle head (11).

5. The screen detection device for display screen production according to claim 1, characterized in that: A vertical opening (7) is provided on the side surface of the vertical rod (4), and the end of the movable rod (6) is slidably inserted into the inner side of the vertical opening (7).

6. The screen detection device for display screen production according to claim 1, characterized in that: The elastic mechanism comprises a fixing seat (12) fixedly mounted at a corner of the upper surface of the recessed frame (3); a plurality of compression springs (15) are fixedly connected to the front surface of the fixing seat (12); the front ends of the compression springs (15) are fixedly connected to the rear surface of the limiting block (13); and the side edge of the limiting block (13) and the fixing seat (12) are slidably engaged in the front-rear direction.

7. A screen detection device for display screen production according to claim 6, characterized in that: A convex rail (16) is fixedly connected to an inner wall of one side of the fixing seat (12), and a sliding opening (17) is provided on one side of the limiting block (13), wherein the sliding opening (17) is slidably sleeved on the outer surface of the convex rail (16).

8. The screen detection device for display screen production according to claim 1, characterized in that: The XYZ axis servo mechanism comprises a sliding frame (23) slidably mounted on the upper surface of the base frame (1) in the front-to-back direction, a longitudinal cylinder (24) and a second guide cylinder (25) are fixedly mounted on the front side of the upper surface of the base frame (1), a second guide rod (26) is slidably inserted into the rear port of the second guide cylinder (25), the rear end of the second guide rod (26) and the telescopic end of the longitudinal cylinder (24) are respectively fixedly connected to the front surface of the sliding frame (23), a transverse axis servo mechanism (27) is fixedly mounted on the rear surface of the sliding frame (23), a vertical axis servo mechanism (28) is fixedly mounted on the movable end of the transverse axis servo mechanism (27), a slide table (29) is fixedly connected to the movable end of the vertical axis servo mechanism (28), and the rear surface of the slide table (29) is fixedly connected to the front end of the detection head (30).

9. A screen detection device for display screen production according to claim 8, characterized in that: Slide rails (31) are fixedly mounted on both sides of the upper surface of the base frame (1), and slide seats (32) are fixedly mounted on both sides of the lower surface of the sliding frame (23). The slide seats (32) are slidably mounted on the outer surfaces of the slide rails (31), and wheels (33) are mounted at the corners of the lower surface of the base frame (1).

10. A screen detection device method for display screen production, using the device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, the user turns the display screen upside down, and the handheld display screen is at the upper end position of the support (35); S2, placing the screen body (34) downward against the front surfaces of the two recessed frames (3), and keeping the screen body (34) as close to the middle of the two recessed frames (3) as possible; S3, controlling the telescopic mechanisms on both sides to push the recessed frames (3) on both sides to move closer to each other, and stopping when the ends of the recessed frames (3) on both sides abut against each other, and then releasing the hands to complete the arrangement of the display screen; S4, controlling the XYZ servo mechanism to cause the detection head (30) to press a plurality of points on the front surface of the screen body (34) to perform a press detection.

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