Display module fixing device for vibration test

Abstract

The utility model discloses a display module fixing device for a vibration test. The display module fixing device comprises a base, a substrate, a clamping mechanism, a cover plate and a pressing mechanism, the base is fixedly connected with the lower end face of the base plate and used for supporting the base plate. The clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first driving module and two first clamping guide rails arranged in the X-axis direction at intervals, the length directions of the first clamping guide rails are arranged in the Y-axis direction, the first clamping guide rails are movably arranged on the base plate, and the first driving module is fixedly arranged on the base plate; the two first clamping guide rails are respectively connected with the driving end of the first driving module, the first driving module is used for driving the two first clamping guide rails to move close to and far away from each other along the X-axis direction, and the fixing device can adapt to the boundary dimensions of display modules with different lengths, widths and thicknesses so as to carry out vibration testing; and the utilization rate of the fixing device for the vibration test is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display module vibration test fixing devices, in particular to a display module fixing device used for vibration testing. Background Art

[0002] Before LCD screens are produced and shipped out of the factory, they are usually subjected to vibration tests. Vibration tests are tests that simulate severe shaking and instantaneous impacts caused by environmental changes during transportation and use, in order to detect the yield rate of the LCD screen.

[0003] At present, the vibration test of the vehicle display module is usually to fix the display module with a fixing device, and then connect the fixing device to the vibration test platform for testing. Fig. 9 As shown, it includes a fixing fixture and a cover plate. A receiving cavity corresponding to the product's external dimensions is opened on the fixing fixture. When in use, the display module is installed in the receiving cavity, and then the cover plate is placed on the fixing fixture. Since the external dimensions (such as length, width and thickness) of each vehicle-mounted display module are non-standardized, each product has its own corresponding fixing fixture. When the product verification is completed and enters mass production, the fixing fixture corresponding to the product is in a semi-scrap state. In addition, in the process of product development, the number of vibration tests for each product is generally 1-2 times, which makes the utilization rate of each fixing fixture relatively low, making the manufacturing cost of the vibration test device high and the testing cost high. Utility Model Content

[0004] The main purpose of the utility model is to provide a display module fixing device for vibration testing, which effectively improves the utilization rate of the fixing device for vibration testing, reduces the manufacturing cost and testing cost of the vibration testing device, and solves the technical problems that the existing fixing fixtures for vibration testing cannot be applied to display modules of different sizes, have low utilization rates, and result in high manufacturing cost and testing cost of the vibration testing device.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A display module fixing device for vibration testing, comprising a base, a substrate, a clamping mechanism, a cover plate and a pressing mechanism; the base is fixedly connected to the lower end surface of the substrate, and the base is used to support the substrate;

[0007] The clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first driving module and two first clamping guide rails spaced apart along the X-axis direction, the length direction of the first clamping guide rails is arranged along the Y-axis direction and is movably arranged on the base plate, the first driving module is fixedly arranged on the base plate, the two first clamping guide rails are respectively connected to the driving ends of the first driving module, and the first driving module is used to drive the two first clamping guide rails to move towards and away from each other along the X-axis direction;

[0008] The second clamping assembly includes a second driving module and two second clamping guide rails spaced apart along the Y-axis direction, the length direction of the second clamping guide rails is arranged along the X-axis direction and is movably arranged on the base plate, the second driving module is fixedly arranged on the base plate, the two second clamping guide rails are respectively connected to the driving ends of the second driving module, and the second driving module is used to drive the two second clamping guide rails to move towards and away from each other along the Y-axis direction;

[0009] The first clamping guide rail and the second clamping guide rail are used to clamp the four sides of the display module in the X-axis direction and the Y-axis direction respectively;

[0010] The cover plate is arranged above the clamping mechanism, and the pressing mechanism is fixedly arranged on the upper surface of the substrate. The pressing mechanism is used to press the cover plate so that the display module is clamped between the cover plate, the first clamping rail and the second clamping rail.

[0011] Optionally, the first driving module includes a first driving device, a first lead screw and two first fixed blocks, the first driving device is fixedly arranged on the base plate, the first lead screw is arranged along the X-axis direction, one end of the first lead screw is connected to the output shaft of the first driving device, the other end of the first lead screw is rotatably connected to the base plate, the two first fixed blocks are respectively fixedly connected to the two lead screw nuts of the first lead screw, the first fixed block is fixedly connected to the first clamping guide rail, and the first driving device drives the first lead screw to rotate, so as to drive the two first fixed blocks to move towards and away from each other;

[0012] The second driving module includes a second driving device, a second lead screw and two second fixed blocks. The second driving device is fixedly arranged on the base plate. The second lead screw is arranged along the Y-axis direction. One end of the second lead screw is connected to the output shaft of the second driving device. The other end of the second lead screw is rotatably connected to the base plate. The two second fixed blocks are respectively fixedly connected to the two lead screw nuts of the second lead screw. The second fixed block is fixedly connected to the second clamping guide rail. The second driving device drives the second lead screw to rotate to drive the two second fixed blocks to move closer to and away from each other.

[0013] Optionally, first fixing plates are respectively provided at both ends of the substrate along the X-axis direction, the first driving device is fixedly arranged on the first fixing plate at one end, and the first lead screw is rotationally connected to the first fixing plate at the other end;

[0014] The substrate is provided with second fixing plates at both ends along the Y-axis direction, the second driving device is fixedly arranged on the second fixing plate at one end, and the second lead screw is rotationally connected to the second fixing plate at the other end.

[0015] Optionally, the first clamping guide rail and the second clamping guide rail are respectively located above the base plate, and the first fixing plate and the second fixing plate are respectively connected to the lower end surface of the base plate;

[0016] The base plate is penetrated by a first through slot and a second through slot, the first through slot is arranged along the X-axis direction, one end of the first fixing block is connected to the corresponding screw nut of the first screw, and the other end of the first fixing block passes through the first through slot and is fixedly connected to the corresponding first clamping guide rail;

[0017] The second through slot is arranged along the Y-axis direction, one end of the second fixing block is connected to the corresponding screw nut of the second screw, and the other end of the second fixing block passes through the second through slot and is fixedly connected to the corresponding second clamping guide rail.

[0018] Optionally, the first clamping guide rail is slidably provided with a plurality of first sliders, and the second clamping guide rail is slidably provided with a plurality of second sliders.

[0019] The first sliding block is provided with a first bearing surface, and the first bearing surfaces of the first sliding blocks on the two first clamping guide rails are arranged opposite to each other;

[0020] The second sliding block is provided with a second bearing surface, and the second bearing surfaces of the second sliding blocks on the two second clamping guide rails are arranged opposite to each other;

[0021] The height of the horizontal plane where the first bearing surface is located is the same as the height of the horizontal plane where the second bearing surface is located.

[0022] Optionally, the first slider is provided with a first fixing hole, and the first clamping guide rail is provided with a plurality of second fixing holes at intervals along its length direction, and a fastener is inserted through the first fixing hole and then into the corresponding second fixing hole to fix the position of the first slider;

[0023] The second slider is penetrated by a third fixing hole, and the second clamping rail is provided with a plurality of fourth fixing holes at intervals along its length direction. A fastener is inserted through the third fixing hole and then into the corresponding fourth fixing hole to fix the position of the second slider.

[0024] Optionally, the cover plate includes a cover plate body and a silicone plate, and the silicone plate is arranged at one end of the cover plate body facing the substrate.

[0025] Optionally, the clamping mechanism includes a plurality of rotary clamping cylinders, the rotary clamping cylinders are fixedly disposed on the base plate, and the plurality of rotary clamping cylinders are distributed on both sides of the base plate.

[0026] Optionally, a micrometer is fixedly disposed on the cover plate, and a measuring end of the micrometer is disposed toward the substrate.

[0027] Optionally, the cover plate is provided with a plurality of fixing components, the fixing components including a fixing sleeve and a fixing rod, the fixing sleeve is fixedly arranged on the lower end surface of the cover plate, the fixing rod is passed through the fixing sleeve, and the fixing rod is threadedly connected to the fixing sleeve, the base plate is provided with a limiting hole corresponding to the fixing rod, and the fixing rod is limited in the corresponding limiting hole.

[0028] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0029] The technical solution of the utility model is provided with a base, a substrate, a clamping mechanism, a cover plate, and a pressing mechanism. The clamping mechanism includes a first clamping component, a second clamping component, a first driving module and a second driving module. The first driving module and the second driving module are used to drive the first clamping component and the second clamping component respectively, so that the first clamping component and the second clamping component can be close to or away from each other. After the four sides of the display module are fixed, the upper end of the display module is fixed by the cover plate, and then the pressing mechanism is used to press the cover plate. At this time, the side edges and the upper end surface of the display module on X and Y are fixed. Since the gap between the first clamping component and the second clamping component can be freely adjusted to cope with display modules of different sizes, at the same time, the pressing mechanism can be freely extended or shortened, and can also cope with display modules of different thicknesses, so that the fixing device can adapt to the external dimensions of display modules of different lengths, widths and thicknesses to perform vibration tests, effectively improving the utilization rate of the fixing device used for vibration tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 An exploded view of an embodiment of the display module fixing fixture of the utility model;

[0031] Figure 2 for Figure 5 The enlarged schematic diagram of point A in the middle;

[0032] Figure 3 for Figure 5 The enlarged schematic diagram of point B in the middle;

[0033] Figure 4 for Figure 5 The enlarged schematic diagram of the center C;

[0034] Figure 5 This is a structural schematic diagram of an embodiment of the display module fixing fixture of the utility model;

[0035] Figure 6 This is a schematic diagram of the bottom structure of an embodiment of the display module fixing fixture of the utility model;

[0036] Figure 7 A bottom view of an embodiment of the display module fixing fixture of the utility model;

[0037] Figure 8 for Figure 7 Sectional view along the middle edge at DD;

[0038] Fig. 9 It is a structural schematic diagram of a fixing fixture in the prior art.

[0039] Description of Figure Numbers:

[0040] 1. Base; 101. First through slot; 102. Second through slot; 103. Positioning hole; 2. Base plate; 3. Clamping mechanism; 301. First clamping assembly; 3011. First drive module; 30111. First drive device; 30112. First lead screw; 30113. First fixing block; 3012. First clamping guide rail; 30121. First slider; 30122. Second fixing hole; 30121a. First bearing surface; 30121b. First fixing hole; 302. Second clamping assembly; 3021. Second drive module; 30211. Second drive device; 30212. Second lead screw ; 30213, second fixed block; 3022, second clamping rail; 30221, second slider; 30222, fourth fixed hole; 30221a, second bearing surface; 30221b, third fixed hole; 4, cover plate; 401, cover plate body; 402, silicone plate; 5, clamping mechanism; 6, first fixed plate; 7, second fixed plate; 8, micrometer; 9, fixing assembly; 901, fixing sleeve; 902, fixing rod; 10, limiting mechanism; 11, moving block; 12, locking assembly; 1201, locking block; 12011, mounting hole; 12012, locking hole; 1202, locking rod. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0042] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text is to include three parallel solutions. Taking "A and / or B as an example", it includes solution A, or solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0045] The utility model provides a display module fixing device for vibration testing.

[0046] See also Figure 1-Figure 9 In the embodiment of the utility model, the fixing device includes a base 1, a substrate 2, a clamping mechanism 3, a cover plate 4 and a clamping mechanism 5; the base 1 is fixedly connected to the lower end surface of the substrate 2, and the base 1 is used to support the substrate 2; the clamping mechanism 3 includes a first clamping component 301 and a second clamping component 302, the first clamping component 301 includes a first driving module 3011 and two first clamping guide rails 3012 spaced apart along the X-axis direction, the length direction of the first clamping guide rails 3012 is arranged along the Y-axis direction and is movably arranged on the substrate 2, the first driving module 3011 is fixedly arranged on the substrate 2, the two first clamping guide rails 3012 are respectively connected to the driving end of the first driving module 3011, and the first driving module 3011 is used to drive the two first clamping guide rails 3012 to move closer to and away from each other along the X-axis direction; the second clamping component 302 includes a second driving module 3021 and two second clamping guide rails 3022 spaced apart along the Y-axis direction, the length direction of the second clamping guide rails 3022 are arranged along the X-axis direction and are movably arranged on the substrate 2, the second driving module 3021 is fixedly arranged on the substrate 2, the two second clamping guide rails 3022 are respectively connected to the driving ends of the second driving module 3021, and the second driving module 3021 is used to drive the two second clamping guide rails 3022 to move towards and away from each other along the Y-axis direction; the first clamping guide rail 3012 and the second clamping guide rail 3022 are respectively used to clamp the four sides of the display module in the X-axis direction and the Y-axis direction; the cover plate 4 is arranged above the clamping mechanism 3, and the clamping mechanism 5 is fixedly arranged on the upper surface of the substrate 2, and the clamping mechanism 5 is used to clamp the cover plate 4 so that the display module is clamped between the cover plate 4, the first clamping guide rail 3012 and the second clamping guide rail 3022.

[0047] The embodiment of the utility model is provided with a clamping mechanism 3, a cover plate 4, and a pressing mechanism 5. The clamping mechanism 3 includes a first clamping component 301, a second clamping component 302, a first driving module 3011, and a second driving module 3021. The first driving module 3011 and the second driving module 3021 respectively drive the first clamping component 301 and the second clamping component 302, so that the first clamping component 301 and the second clamping component 302 can be close to or away from each other. After the four sides of the display module are fixed, the upper end of the display module is fixed by the cover plate 4, the cover plate 4 is pressed on the display module, and then the pressing mechanism 5 is used to press the cover plate 4 to fix the cover plate 4. At this time, the side edges (X and Y directions) and the upper end face (Z direction) of the display module are fixed. The first clamping assembly 301 and the second clamping assembly 302 are fixed upward, and since the gaps between the first clamping assembly 301 and the second clamping assembly 302 can be freely adjusted to cope with display modules of different sizes, the clamping mechanism 5 can be freely extended or shortened, and can also cope with display modules of different thicknesses, so that the fixing device can adapt to the outer dimensions of display modules of different lengths, widths and thicknesses, and display modules of different lengths, widths and thicknesses can be fixed using the same fixing device for vibration testing, effectively improving the utilization rate of the fixing device for vibration testing, reducing the manufacturing cost and testing cost of the vibration testing device, and solving the technical problems that the existing fixing fixtures for vibration testing cannot be applied to display modules of different sizes, have low utilization rates, and make the manufacturing cost and testing cost of the vibration testing device high.

[0048] See also Figure 1 , Figure 2 , Figure 3 and Figure 6In one embodiment of the utility model, the first driving module 3011 includes a first driving device 30111, a first lead screw 30112 and two first fixed blocks 30113. The first driving device 30111 is fixedly arranged on the substrate 2. The first lead screw 30112 is arranged along the X-axis direction. One end of the first lead screw 30112 is connected to the output shaft of the first driving device 30111, and the other end of the first lead screw 30112 is rotatably connected to the substrate 2. The two first fixed blocks 30113 are respectively fixedly connected to the two lead screw nuts of the first lead screw 30112. The first fixed block 30113 is fixedly connected to the first clamping guide rail 3012. The first driving device 30111 drives the first lead screw 30112 to rotate, so as to drive the two first fixed blocks 30113 to move closer to and closer to each other. Movement away from each other; the second driving module 3021 includes a second driving device 30211, a second lead screw 30212 and two second fixed blocks 30213, the second driving device 30211 is fixedly arranged on the substrate 2, the second lead screw 30212 is arranged along the Y-axis direction, one end of the second lead screw 30212 is connected to the output shaft of the second driving device 30211, the other end of the second lead screw 30212 is rotatably connected to the substrate 2, the two second fixed blocks 30213 are respectively fixedly connected to the two lead screw nuts of the second lead screw 30212, the second fixed block 30213 is fixedly connected to the second clamping guide rail 3022, the second driving device 30211 drives the second lead screw 30212 to rotate, so as to drive the two second fixed blocks 30213 to move towards and away from each other.

[0049] The embodiment of the utility model is provided with a first lead screw 30112 and a second lead screw 30212. The first lead screw 30112 and the second lead screw 30212 are positive and negative lead screws. Therefore, the movement directions of the two lead screw nuts on the same first lead screw 30112 are opposite, which drives the corresponding first fixing block 30113 and the second fixing block 30213 to move in opposite directions along the length direction of the first lead screw 30112 and the second lead screw 30212. When the display module needs to be clamped, the two first fixing blocks 30113 and the second fixing blocks 30 213 are close to each other. When the display module needs to be removed, the first fixing block 30113 and the second fixing block 30213 are away from each other. Therefore, the first fixing block 30113 and the second fixing block 30213 drive the first clamping guide rail 3012 and the second clamping guide rail 3022 to approach or move away from each other to clamp the display module. The first driving device 30111 and the second driving device 30211 are servo motors respectively, which are used to drive the first lead screw 30112 and the second lead screw 30212. The base 1 and the substrate 2 are respectively made of aluminum alloy.

[0050] Further explanation, since the first clamping guide rail 3012 and the second clamping guide rail 3022 need to be moved, they are long and will shake during the movement. Therefore, a corresponding limiting mechanism 10 is provided on the base plate 2, and a moving block 11 is provided on the limiting mechanism 10. The limiting mechanism 10 is connected to the base plate 2, and the moving block 11 slides along the limiting mechanism 10. The moving block 11 is connected to the ends of the first clamping guide rail 3012 and the second clamping guide rail 3022. When in use, due to the limiting mechanism 10 on The moving block 11 is connected to the ends of the first clamping guide rail 3012 and the second clamping guide rail 3022, and the moving block 11 moves along the limiting mechanism 10, and the movement is relatively smooth. Therefore, under the restriction of the limiting mechanism 10 and the moving block 11, the movement of the first clamping guide rail 3012 and the second clamping guide rail 3022 is also relatively smooth. If the limiting mechanism 10 is a limiting rod, the moving block 11 is a sleeve. At this time, the moving block 11 is sleeved on the limiting mechanism 10. If the limiting mechanism 10 is a guide rail, the moving block 11 is a guide rail slider.

[0051] To further explain, in order to improve efficiency and ensure the accuracy of movement of the nuts of the first lead screw 30112 and the second lead screw 30212, a control mechanism can be set. The control mechanism includes an electronic component box, a power switch, a control switch, a control module, and a liquid crystal display. The control module is placed in the electronic component box, and the power switch and the liquid crystal display are embedded in the electronic component box. The power switch, the control switch, the control module, the liquid crystal display, the first lead screw 30112 and the second lead screw 30212 are electrically connected. The liquid crystal display is used to input the dimensions in the XY direction, and the first clamping guide rail 3012 and the second clamping guide rail 3022 will automatically move to the specified position to ensure accuracy.

[0052] See also Figure 5 In one embodiment of the utility model, a first fixed plate 6 is respectively provided at both ends of the substrate 2 along the X-axis direction, a first driving device 30111 is fixedly provided on the first fixed plate 6 at one end, and a first lead screw 30112 is rotatably connected to the first fixed plate 6 at the other end; a second fixed plate 7 is respectively provided at both ends of the substrate 2 along the Y-axis direction, a second driving device 30211 is fixedly provided on the second fixed plate 7 at one end, and a second lead screw 30212 is rotatably connected to the second fixed plate 7 at the other end.

[0053] The embodiment of the utility model is provided with a first fixing plate 6 and a second fixing plate 7, which are used to fix the first screw 30112 of the first driving device 30111, the second driving device 30211, and the second screw 30212. The first fixing plate 6 and the second fixing plate 7 are respectively arranged on the base plate 2. When in use, the first screw 30112 of the first driving device 30111, the second driving device 30211, and the second screw 30212 are prevented from shaking, thereby affecting the accuracy. Specifically, the first fixing plate 6 rotatably connected to the first screw 30112 and the second fixing plate 7 rotatably connected to the second screw 30212 are respectively provided with locking components 12. The locking components 12 It includes a locking block 1201 and a locking rod 1202. The first lead screw 30112 and the second lead screw 30212 are respectively rotatably set in the corresponding mounting hole 12011 of the locking block 1201. The locking block 1201 is provided with a locking hole 12012. The locking hole 12012 is communicated with the mounting hole 12011. The locking rod 1202 is rotatably set in the locking hole 12012. The locking rod 1202 can be threadedly connected with the locking hole 12012. The locking rod 1202 is rotated to make itself abut against the first lead screw 30112 or the second lead screw 30212 to achieve locking of the first lead screw 30112 or the second lead screw 30212, thereby effectively improving the reliability of the driving structure.

[0054] See also Figure 1 and Figure 6 In one embodiment of the utility model, the first clamping guide rail 3012 and the second clamping guide rail 3022 are respectively located above the substrate 2, and the first fixing plate 6 and the second fixing plate 7 are respectively connected to the lower end surface of the substrate 2; the substrate 2 is penetrated by a first through groove 101 and a second through groove 102, the first through groove 101 is arranged along the X-axis direction, one end of the first fixing block 30113 is connected to the screw nut of the corresponding first lead screw 30112, and the other end of the first fixing block 30113 is fixedly connected to the corresponding first clamping guide rail 3012 after passing through the first through groove 101; the second through groove 102 is arranged along the Y-axis direction, one end of the second fixing block 30213 is connected to the screw nut of the corresponding second lead screw 30212, and the other end of the second fixing block 30213 is fixedly connected to the corresponding second clamping guide rail 3022 after passing through the second through groove 102.

[0055] In the embodiment of the utility model, the first lead screw 30112 and the second lead screw 30212 are arranged at the lower end of the substrate 2, so that the upper end of the substrate 2 has enough space for placing the display module. Since the first lead screw 30112 and the second lead screw 30212 are located below the substrate 2, it is necessary to set the first through groove 101 and the second through groove 102, so that the first fixing block 30113 can pass through the first through groove 101 to drive the first clamping guide rail 3012, and the second fixing block 30213 is similar. Specifically, two first through grooves 101 and two second through grooves 102 are respectively provided, and the first through grooves 101 and the first fixing blocks 30113 are arranged in a one-to-one correspondence, and the second through grooves 102 and the second fixing blocks 30213 are arranged in a one-to-one correspondence.

[0056] See also Figure 2 In one embodiment of the utility model, the first clamping guide rail 3012 is slidably provided with a plurality of first sliders 30121, and the second clamping guide rail 3022 is slidably provided with a plurality of second sliders 30221, the first slider 30121 is provided with a first bearing surface 30121a, and the first bearing surfaces 30121a of the first sliders 30121 on the two first clamping guide rails 3012 are arranged opposite to each other; the second slider 30221 is provided with a second bearing surface 30221a, and the second bearing surfaces 30221a of the second sliders 30221 on the two second clamping guide rails 3022 are arranged opposite to each other; the height of the horizontal plane where the first bearing surface 30121a is located is the same as the height of the horizontal plane where the second bearing surface 30221a is located.

[0057] In the embodiment of the utility model, by setting the first bearing surface 30121a and the second bearing surface 30221a, when in use, the display module can be placed on the first bearing surface 30121a and the second bearing surface 30221a, and the display module is stuck between the first bearing surface 30121a and the second bearing surface 30221a, so that the display module can be fixed more stably.

[0058] See also Figure 3 In one embodiment of the utility model, the first slider 30121 is penetrated by a first fixing hole 30121b, and the first clamping guide rail 3012 is provided with a plurality of second fixing holes 30122 at intervals along its length direction. A fastener is inserted through the first fixing hole 30121b and then inserted into the corresponding second fixing hole 30122 to fix the position of the first slider 30121; the second slider 30221 is penetrated by a third fixing hole 30221b, and the second clamping guide rail 3022 is provided with a plurality of fourth fixing holes 30222 at intervals along its length direction. A fastener is inserted through the third fixing hole 30221b and then inserted into the corresponding fourth fixing hole 30222 to fix the position of the second slider 30221.

[0059] In the embodiment of the utility model, a plurality of fixing holes are provided. After the first clamping guide rail 3012 and the second clamping guide rail 3022 clamp the display module, the first slider 30121 and the second slider 30221 can be fixed by inserting fasteners into the fixing holes. The fasteners can be bolts. It should be noted that the number of the first slider 30121 and the second slider 30221 can be set according to the size of the display module to be carried, so as to ensure the bearing stability of the display module.

[0060] See also Figure 8 In one embodiment of the present invention, the cover plate 4 includes a cover plate body 401 and a silicone plate 402 , and the silicone plate 402 is disposed at one end of the cover plate body 401 facing the substrate 2 .

[0061] In the embodiment of the utility model, the silicone plate 402 is arranged on the end of the cover body 401 facing the substrate 2, so that the cover body 401 can be effectively prevented from crushing the display module. The cover body 401 is made of acrylic material, which is lighter, stronger and cheaper than aluminum alloy.

[0062] See also Figure 1 In one embodiment of the utility model, the clamping mechanism 5 includes a plurality of rotary clamping cylinders, which are fixedly disposed on the base plate 2 , and the plurality of rotary clamping cylinders are distributed on both sides of the base plate 2 .

[0063] In the embodiment of the utility model, the cover plate 4 is clamped by a rotating clamping cylinder. The extension and contraction amount of the rotating clamping cylinder can be easily controlled by a control module, so as to press the cover plate 4. Specifically, the rotating clamping cylinder is distributed on both sides of the substrate 2 in the X-axis direction.

[0064] See also Figure 1 In one embodiment of the utility model, the cover plate 4 is fixedly provided with a micrometer 8 , and the measuring end of the micrometer 8 is arranged toward the base plate 2 .

[0065] In the embodiment of the utility model, before the cover plate 4 is covered on the display module, the micrometer 8 is adjusted so that the reading of the micrometer 8 corresponds to the thickness of the display module. In this way, when the cover plate 4 is pressed and fixed by the clamping mechanism 5, the height difference between the four corners of the cover plate 4 and the substrate 2 is equal, thereby preventing the unstable fixation of the display module due to the different height differences between the four corners of the cover plate 4 and the substrate 2. Specifically, the cover plate 4 is rectangular, and the four edges of the cover plate 4 are respectively provided with micrometers 8. The number of micrometers 8 is 4, and they are located at the middle edge of the cover plate 4.

[0066] See also Figure 1In one embodiment of the utility model, the cover plate 4 is provided with a plurality of fixing components 9, the fixing components 9 include a fixing sleeve 901 and a fixing rod 902, the fixing sleeve 901 is fixedly arranged on the lower end surface of the cover plate 4, the fixing rod 902 is passed through the fixing sleeve 901, and the fixing rod 902 is threadedly connected to the fixing sleeve 901, and the base plate 2 is provided with a limiting hole 103 corresponding to the fixing rod 902, and the fixing rod 902 is limited in the corresponding limiting hole 103.

[0067] In the embodiment of the utility model, four fixing components 9 are provided, and the four fixing components 9 are respectively located at the four corners of the cover plate 4. The limiting holes 103 are provided on the upper surface of the substrate 2. A first threaded hole is penetrated through the position of the limiting hole 103 at the bottom of the substrate 2, and a second threaded hole is provided at the bottom of the fixing rod 902. After adjusting the height of the fixing rod 902, a screw can be used to pass through the threaded hole and then inserted into the corresponding second threaded hole of the fixing rod 902 to fix the fixing rod 902 to avoid shaking of the fixing rod 902 during vibration.

[0068] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A display module fixing device for vibration testing, characterized in that: It includes a base, a substrate, a clamping mechanism, a cover plate and a pressing mechanism; the base is fixedly connected to the lower end surface of the substrate, and the base is used to support the substrate; The clamping mechanism comprises a first clamping assembly and a second clamping assembly, the first clamping assembly comprises a first driving module and two first clamping guide rails spaced apart along the X-axis direction, the length direction of the first clamping guide rails is arranged along the Y-axis direction and is movably arranged on the base plate, the first driving module is fixedly arranged on the base plate, the two first clamping guide rails are respectively connected to the driving ends of the first driving module, and the first driving module is used to drive the two first clamping guide rails to move towards and away from each other along the X-axis direction; The second clamping assembly includes a second driving module and two second clamping guide rails spaced apart along the Y-axis direction, the length direction of the second clamping guide rails is arranged along the X-axis direction and is movably arranged on the base plate, the second driving module is fixedly arranged on the base plate, the two second clamping guide rails are respectively connected to the driving ends of the second driving module, and the second driving module is used to drive the two second clamping guide rails to move towards and away from each other along the Y-axis direction; The first clamping guide rail and the second clamping guide rail are used to clamp the four sides of the display module in the X-axis direction and the Y-axis direction respectively; The cover plate is arranged above the clamping mechanism, and the pressing mechanism is fixedly arranged on the upper surface of the substrate. The pressing mechanism is used to press the cover plate so that the display module is clamped between the cover plate, the first clamping rail and the second clamping rail.

2. The display module fixing device for vibration testing according to claim 1, characterized in that: The first driving module comprises a first driving device, a first lead screw and two first fixing blocks, the first driving device is fixedly arranged on the base plate, the first lead screw is arranged along the X-axis direction, one end of the first lead screw is connected to the output shaft of the first driving device, the other end of the first lead screw is rotatably connected to the base plate, the two first fixing blocks are respectively fixedly connected to the two lead screw nuts of the first lead screw, the first fixing block is fixedly connected to the first clamping guide rail, and the first driving device drives the first lead screw to rotate, so as to drive the two first fixing blocks to move towards and away from each other; The second driving module includes a second driving device, a second lead screw and two second fixed blocks. The second driving device is fixedly arranged on the base plate. The second lead screw is arranged along the Y-axis direction. One end of the second lead screw is connected to the output shaft of the second driving device. The other end of the second lead screw is rotatably connected to the base plate. The two second fixed blocks are respectively fixedly connected to the two lead screw nuts of the second lead screw. The second fixed block is fixedly connected to the second clamping guide rail. The second driving device drives the second lead screw to rotate to drive the two second fixed blocks to move closer to and away from each other.

3. The display module fixing device for vibration testing according to claim 2, characterized in that: The two ends of the substrate along the X-axis direction are respectively provided with first fixing plates, the first driving device is fixedly arranged on the first fixing plate at one end, and the first lead screw is rotationally connected to the first fixing plate at the other end; The substrate is provided with second fixing plates at both ends along the Y-axis direction, the second driving device is fixedly arranged on the second fixing plate at one end, and the second lead screw is rotationally connected to the second fixing plate at the other end.

4. The display module fixing device for vibration testing according to claim 3, characterized in that: The first clamping guide rail and the second clamping guide rail are respectively located above the base plate, and the first fixing plate and the second fixing plate are respectively connected to the lower end surface of the base plate; The base plate is penetrated by a first through slot and a second through slot, the first through slot is arranged along the X-axis direction, one end of the first fixing block is connected to the corresponding screw nut of the first screw, and the other end of the first fixing block passes through the first through slot and is fixedly connected to the corresponding first clamping guide rail; The second through slot is arranged along the Y-axis direction, one end of the second fixing block is connected to the corresponding screw nut of the second screw, and the other end of the second fixing block passes through the second through slot and is fixedly connected to the corresponding second clamping guide rail.

5. The display module fixing device for vibration testing according to claim 1, characterized in that: The first clamping guide rail is slidably provided with a plurality of first sliders, and the second clamping guide rail is slidably provided with a plurality of second sliders. The first sliding block is provided with a first bearing surface, and the first bearing surfaces of the first sliding blocks on the two first clamping guide rails are arranged opposite to each other; The second sliding block is provided with a second bearing surface, and the second bearing surfaces of the second sliding blocks on the two second clamping guide rails are arranged opposite to each other; The height of the horizontal plane where the first bearing surface is located is the same as the height of the horizontal plane where the second bearing surface is located.

6. The display module fixing device for vibration testing according to claim 5, characterized in that: The first slider is provided with a first fixing hole, and the first clamping guide rail is provided with a plurality of second fixing holes at intervals along its length direction, and a fastener is inserted through the first fixing hole and then into the corresponding second fixing hole to fix the position of the first slider; The second slider is penetrated by a third fixing hole, and the second clamping rail is provided with a plurality of fourth fixing holes at intervals along its length direction. A fastener is inserted through the third fixing hole and then into the corresponding fourth fixing hole to fix the position of the second slider.

7. The display module fixing device for vibration testing according to claim 1, characterized in that: The cover plate comprises a cover plate body and a silicone plate, wherein the silicone plate is arranged at one end of the cover plate body facing the substrate.

8. The display module fixing device for vibration testing according to claim 1, characterized in that: The clamping mechanism comprises a plurality of rotating clamping cylinders, the rotating clamping cylinders are fixedly arranged on the base plate, and the plurality of rotating clamping cylinders are distributed on both sides of the base plate.

9. The display module fixing device for vibration testing according to claim 1, characterized in that: The cover plate is fixedly provided with a micrometer, and the measuring end of the micrometer is arranged toward the base plate.

10. The display module fixing device for vibration testing according to claim 1, characterized in that: The cover plate is provided with a plurality of fixing components, and the fixing components include a fixing sleeve and a fixing rod. The fixing sleeve is fixedly arranged on the lower end surface of the cover plate, the fixing rod is passed through the fixing sleeve, and the fixing rod is threadedly connected to the fixing sleeve. The base plate is provided with a limiting hole corresponding to the fixing rod, and the fixing rod is limited in the corresponding limiting hole.

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