Flipper machine for assisting in performing display device failure defect verification testing

Abstract

The application discloses a turnover machine for assisting in display device fault defect verification test, which comprises a jacking mechanism for jacking up products to separate the products from a production line and / or putting the tested products back to the production line; a clamping mechanism arranged above the jacking mechanism and used for clamping the products jacked up by the jacking mechanism; a rotating mechanism comprising a connecting rod structure and fixedly connected with the clamping mechanism, used for rotating the products clamped by the clamping mechanism; and a detection mechanism used for detecting the products rotated to a position. The turnover machine for assisting in display device fault defect verification test is beneficial to the cooperation between the clamping mechanism and the rotating mechanism, realizes the grabbing of the products from the production line, the turnover of the products to the upright detection position, and the completion of the on-line picture test, and the products do not need to be carried offline for picture detection.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of liquid crystal display device production and manufacturing, and in particular to a turnover machine for assisting in display device fault defect verification testing. BACKGROUND

[0002] In the production and manufacturing process of liquid crystal display devices, the flow line is the main production method. During product assembly, horizontal work is required at some workstations, such as mainboard attachment, and the product needs to be upright with the screen facing the operator at some workstations (the original liquid crystal screen is buckled on the flow line for manual assembly and attachment, and during display device fault defect verification testing, the screen needs to face the tester for picture detection). For example, during display device fault defect verification (FDV) testing picture detection. The existing turnover method can be assisted by manual turnover (using a balance hoist to hang the rear handle of the display, and manually assisting the turnover action to realize picture detection). If the product does not have a handle, the balance hoist cannot assist in turnover, and a large amount of manpower is needed to assist in turnover, which not only reduces efficiency but also cannot guarantee safety during the turnover process.

[0003] In the prior art, the authorized patent number CN 112224764 A discloses a turnover line body for a transmission mechanism, which can realize automatic turnover of the flow line, but cannot realize the switching of the product between horizontal and upright states, and cannot realize random setting of the turnover angle of 0-90 degrees. Patent applications CN 110879490 A and CN 216000325 U can also realize turnover detection of the product, but cannot realize online operation and need manual handling of feeding and discharging, which cannot reduce the difficulty of manual operation. SUMMARY

[0004] To solve the above technical problems, the present application provides a turnover machine for assisting in display device fault defect verification testing of a liquid crystal display without a handle, which realizes automatic switching of the product between the horizontal state and the upright state on the line body through a turnover mechanism, and meets the requirement of manual picture detection.

[0005] The turnover machine for assisting in display device fault defect verification testing of the present application comprises a rack, a jacking mechanism, a clamping mechanism, a rotating mechanism, and a detection mechanism fixed on the rack, wherein the jacking mechanism is used to jack up the product to separate it from the flow line and / or put the detected product back on the flow line;

[0006] The clamping mechanism is arranged above the jacking mechanism and is used to clamp the product jacked up by the jacking mechanism;

[0007] The rotating mechanism comprises a connecting rod structure and is fixedly connected with the clamping mechanism, and is used to rotate the product clamped by the clamping mechanism, and

[0008] A detection mechanism for detecting the product rotated into position.

[0009] In one embodiment, the jacking mechanism comprises a first motor, a gear, a rack engaged with the gear, and a jacking platform fixedly connected with the rack. The first motor is fixed on the lower frame of the turnover machine and connected with a first shaft and capable of driving the first shaft to rotate. The gear is arranged at both ends of the first shaft. The rack is engaged with the gear and capable of reciprocating up and down when the gear rotates, thereby driving the jacking platform to reciprocate up and down.

[0010] In one embodiment, the clamping mechanism comprises a fixed frame, a belt centering mechanism fixed on the fixed frame, a second motor, and clamping members symmetrically arranged on the belt centering mechanism. The second motor is fixed on the fixed frame through a second shaft. The belt centering mechanism is symmetrically arranged at both ends of the second shaft and capable of driving the clamping members to move towards each other under the drive of the second motor to clamp the product.

[0011] In one embodiment, the rotating mechanism comprises a third motor and an opposite arrangement of connecting rod mechanisms. The connecting rod mechanism comprises a lead screw arranged along the width direction of the turnover machine and a rotating shaft slidably connected at one end with the lead screw. The other end of the rotating shaft is fixed on the frame of the turnover machine through a first bearing. The end of the lead screw away from the rotating shaft is provided with a first synchronous wheel. The opposite arrangement of first synchronous wheels are connected through a first synchronous belt. One end of the rotating shaft is connected with the lead screw. The third motor drives the synchronous wheel to rotate the lead screw and drive the rotating shaft to move.

[0012] In one embodiment, the rotating mechanism drives the product to rotate at an angle of 0°-90°.

[0013] In one embodiment, the lead screw is provided with a sliding block at both ends. A nut is arranged on the sliding block away from the rotating shaft. The nut moves linearly along the length of the lead screw with the rotation of the lead screw. One end of the rotating shaft is fixed on the nut, and the other end is fixed on the frame of the turnover machine.

[0014] In one embodiment, the belt centering mechanism comprises symmetrically arranged first clamping member fixed profiles, second clamping member fixed profiles, second synchronous wheels respectively arranged at both ends of the second shaft, and third synchronous wheels fixed on the frame of the turnover machine in a direction perpendicular to the second shaft. The second synchronous wheels and the third synchronous wheels are connected through a second synchronous belt. The first clamping member fixed profiles and the second clamping member fixed profiles are respectively arranged perpendicular to the direction of the second synchronous belt. The second synchronous belt, both ends of the first clamping member fixed profiles, and both ends of the second clamping member fixed profiles are respectively fixed on the sliding blocks of the lead screw.

[0015] In one embodiment, a converter is further arranged on the second shaft, which converts the rotation of the second motor into the rotation of the driving shaft of the converter, thereby driving the second synchronous wheel to rotate, and driving the first clamping fixed profile and the second clamping fixed profile to move towards each other.

[0016] In one embodiment, the first clamping fixed profile and the second clamping fixed profile are locked on the sliding block by screws.

[0017] In one embodiment, the first motor, the second motor and the third motor are servo motors.

[0018] In one embodiment, the synchronous belt is fixed on the sliding block by a pressing plate.

[0019] In one embodiment, the sliding blocks at both ends of the lead screw are respectively arranged on the opposite sides of the lead screw.

[0020] In one embodiment, the bottom of the rack is provided with leveling feet.

[0021] Compared with the prior art, the turnover machine for assisting in the display device fault defect verification test of the present application adopts a servo motor to drive a lead screw, and a sliding block on the lead screw forms a linkage mechanism, and the angle formed by the linkage mechanism in the present application is beneficial to reduce the force required in the turnover process and reduce the torque required for the servo motor to drive the turnover; at the same time, the clamping mechanism and the rotating mechanism are cooperated with each other to realize the turnover of the product from the assembly line to the upright detection position, complete the on-line picture test, and there is no need to transport the product offline for picture detection.

[0022] The above technical features can be combined in various technically feasible ways to produce new embodiments, as long as the purpose of the present application can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The present application will be described in more detail in the following based on only non-limiting examples and with reference to the attached drawings. In which:

[0024] Figure 1 The structure schematic diagram of the turnover machine for assisting in the display device fault defect verification test according to the present application is shown;

[0025] Figures 2A-2D The structure schematic diagram of the lifting mechanism of the turnover machine in Figure 1 is shown;

[0026] Figures 3A-3F The structure schematic diagram of the clamping mechanism of the turnover machine in Figure 1 is shown;

[0027] Figures 4A-4B shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test; Figure 1 shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test;

[0028] Figure 4C shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test; Figure 1 shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test;

[0029] Figure 4D shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test;

[0030] Figure 5 shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test;

[0031] Figure 6 shows the structure diagram of the turnover mechanism of the turnover machine in the display device failure defect verification test;

[0032] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to scale.

[0033] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to scale.

[0034] 1, the lifting mechanism; 1001, the first motor; 1002, the gear; 1003, the rack; 1004, the assembly line welding frame; 1005, the lifting platform; 1006, the shaft coupling; 1007, the first shaft; 1008, the bearing seat; 2, the clamping mechanism; 2001, the first clamping piece fixed profile; 2002, the second clamping piece fixed profile; 2003, the belt centering mechanism; 2004, the second motor; 2005, the second synchronous wheel; 2006, the second synchronous belt; 2007, the third synchronous wheel; 2008, the slider; 2009, the pressing plate; 2010, the clamping piece; 2011, the converter; 3, the rotating mechanism; 3001, the third motor; 3002, the first synchronous belt; 3003, the nut; 3004, the screw; 3005, the second bearing; 3006, the first synchronous wheel; 3007, the first bearing; 3008, the lead screw; 3009, the rotating shaft; 4, the detection mechanism; 5, the start button. DETAILED DESCRIPTION

[0035] The application will be further described in detail below in conjunction with the drawings and specific examples. It should be noted that, as long as there is no conflict, each embodiment in the application and each feature in each embodiment can be combined with each other, and the formed technical solutions are all within the protection scope of the application.

[0036] The parts not described in the application can be realized by using or referring to the existing technology.

[0037] As Figure 1As shown, the turnover machine for assisting the display device failure defect verification test of the present application comprises a rack, and a jacking mechanism 1, a clamping mechanism 2, a rotating mechanism 3, and a detection mechanism 4 fixed on the rack, wherein:

[0038] The jacking mechanism 1 is used for jacking the product to separate it from the assembly line and / or putting the detected product back to the assembly line;

[0039] The clamping mechanism 2 is arranged above the jacking mechanism 1 and is used for clamping the product jacked by the jacking mechanism 1;

[0040] The rotating mechanism 3 comprises a connecting rod structure and is fixedly connected with the clamping mechanism 2, and is used for rotating the product clamped by the clamping mechanism 2, and

[0041] The detection mechanism 4 is used for detecting the product rotated to the position.

[0042] Reference Figures 2A-2D In one specific embodiment, the jacking mechanism 1 comprises a first motor 1001, a gear 1002, a rack 1003 engaged with the gear 1002, and a jacking platform 1005 fixedly connected with the rack 1003, wherein, as shown in Figure 2B and Figure 2C The first motor 1001 is fixed on the lower rack of the turnover machine and is connected with a first shaft 1007 through a shaft coupling 1006, the first shaft 1007 is fixed on the lower rack of the turnover machine, i.e. the assembly line welding rack 1004, through a bearing seat 1008, preferably, the fixed direction of the first shaft is perpendicular to the forward direction of the assembly line. The gear 1002 is arranged at both ends of the first shaft 1007 respectively, the rack 1003 is arranged perpendicular to the jacking platform 1005 and is engaged with the gear 1002, when the first motor 1001 works, it drives the first shaft 1007 to rotate in the direction shown by the arrow in 2D, thereby driving the gear 1002 to rotate, the rack 1003 engaged with the gear 1002 drives the jacking platform 1005 to move upward when the gear 1002 rotates, thereby jacking the product to the corresponding position.

[0043] As shown in Figure 5 , the working process of the jacking mechanism 1 of the present application is shown, when the product on the assembly line is in position, the start button of the turnover machine is pressed manually, the first motor 1001 starts, drives the first shaft 1007 to rotate in the direction shown by the arrow in Figure 2D , thereby driving the gear 1002 to rotate, the rack 1003 engaged with the gear 1002 moves upward when the gear 1002 rotates, thereby driving the jacking platform 1005 to move upward, thereby jacking the product to the corresponding position (the jacking height of the product is determined by the set motor parameters). After the product is clamped and grabbed by the clamping mechanism, the motor 1001 reverses the rotation, drives the jacking platform 1005 to move downward and returns to the original position.

[0044] The present application lifts the product before the clamping mechanism grabs and flips the product, so as not to affect the whole line product flow.

[0045] As shown in Figure 3C , Figure 3D , Figure 3E , the clamping mechanism 2 is located above the lifting mechanism 1, and the clamping mechanism 2 comprises a fixed frame, a belt centering mechanism 2003, a second motor 2004 fixed on the fixed frame, and clamping pieces 2010 symmetrically arranged on the belt centering mechanism. Preferably, the clamping pieces 2010 can be clamping jaws or clamping blocks. The second motor 2004 is fixed on the fixed frame through a second shaft, and the belt centering mechanism 2003 is symmetrically arranged at both ends of the second shaft and can drive the clamping pieces 2010 to move towards each other under the drive of the second motor 2004 to clamp the product.

[0046] The present application adopts a servo motor to drive the belt centering mechanism to clamp the product, so as to be compatible with products of different widths.

[0047] Specifically, as shown in Figures 3A-3F , the belt centering mechanism 2003 comprises a first clamping piece fixing profile 2001, a second clamping piece fixing profile 2002, a second synchronous pulley 2005 at both ends of the second shaft, and a third synchronous pulley 2007 fixed on the fixed frame, wherein the direction of the third synchronous pulley 2007 is perpendicular to the direction of the second shaft, the second synchronous pulley 2005 and the third synchronous pulley 2007 are connected by a second synchronous belt 2006, the first clamping piece fixing profile 2001 and the second clamping piece fixing profile 2002 are respectively arranged perpendicular to the direction of the second synchronous belt, and the first clamping piece fixing profile 2001 and the second clamping piece fixing profile 2002 are symmetrically provided with clamping pieces 2010. Wherein, the second synchronous belt 2006, both ends of the first clamping piece fixing profile 2001 and both ends of the second clamping piece fixing profile 2002 are respectively fixed on the sliding block 2008 of the screw rod of the rotating mechanism 3.

[0048] Specifically, the first clamping piece fixing profile 2001 and the second clamping piece fixing profile 2002 can be locked on the sliding block 2008 by screws 3004. At the same time, the second synchronous belt 2006 is fixed on the sliding block 2008 by a pressing plate 2009.

[0049] The sliding blocks 2008 at both ends of the same screw rod 3008 are respectively located on opposite sides of the screw rod (i.e. Figure 3D on opposite inner sides and opposite outer sides of the screw rod), so as to drive the first clamping piece fixing profile 2001 and the second clamping piece fixing profile 2002 to move towards each other when the second synchronous belt 2006 moves in the direction as shown by the arrow in Figure 3F .

[0050] As shown in Figure 3A , the state of the clamping piece 2010 before clamping the product, Figure 3B , the state of the clamping piece 2010 after clamping the product.

[0051] Optionally, the clamping piece is provided with a protective piece, which can prevent the mechanism processing piece from rubbing and damaging the appearance of the product, and improve the yield of the product appearance. Preferably, the protective piece is a super glue.

[0052] As shown in Figure 3E and Figure 3F , a converter 2011 is further arranged on the second shaft, and the converter 2011 changes the movement direction and converts the rotation of the second motor 2004 into the driving shaft of the converter 2011 to drive the second synchronous wheel 2005 to rotate, so as to drive the second synchronous belt 2006 to move in the direction as shown by the arrow in Figure 3F , so as to drive the first clamping piece fixed profile 2001 and the second clamping piece fixed profile 2002 to move oppositely, thereby clamping the product by the clamping piece 2010.

[0053] The working principle and process of the clamping mechanism will be described below with reference to Figures 3A-3F : when the system of the turnover machine senses that the jacking mechanism 1 has lifted the product to be detected to the position, the second motor 2004 operates, at the same time, the converter 2011 converts the rotation of the second motor 2004 into the rotation of the second synchronous wheel 2005, and the second synchronous belt 2006 moves in the direction perpendicular to the second shaft (such as the direction shown by the arrow in Figure 3F ) under the driving of the second synchronous wheel 2005, because the first clamping piece fixed profile 2001 and the second clamping piece fixed profile 2002 are oppositely arranged and respectively fixed on the inner and outer sides of the lead screw, when the second synchronous belt 2006 moves, the first clamping piece fixed profile 2001 and the second clamping piece fixed profile 2002 move oppositely.

[0054] With reference to Figures 4A-4D , the rotating mechanism of the present application comprises a third motor 3001 and an oppositely arranged connecting rod mechanism, as shown in Figure 4CAs shown, the connecting rod mechanism includes a screw rod 3008 arranged along the width direction of the turnover machine and a rotating shaft 3009, the screw rod 3008 is fixed on the rack of the turnover machine through a support seat and a fixed base, one end of the rotating shaft 3009 is slidably connected with the screw rod 3008, and the other end is fixed on the rack of the turnover machine through a bearing 3007, one end of the screw rod 3008 away from the rotating shaft 3009 is provided with a first synchronous wheel 3006, the first synchronous wheels 3006 arranged oppositely are connected through a first synchronous belt 3002, one end of the rotating shaft 3009 is connected with the screw rod 3008, and the third motor 3001 drives the first synchronous wheel 3006 to drive the screw rod 3008 to rotate, and the screw rod 3008 converts the rotary motion into linear motion to drive the rotating shaft 3009 to move.

[0055] More specifically, as shown in Figure 4C and 4D , the sliding blocks 2008 are arranged at two ends of the screw rod 3008 respectively, the sliding blocks 2008 on the same screw rod are arranged on opposite sides of the screw rod respectively, the sliding blocks 2008 move along a straight line sliding rail (not marked in the figure) arranged in parallel with the screw rod 3008, the sliding block 2008 away from one end of the rotating shaft 3009 is provided with a nut 3003, the nut 3003 moves linearly along the length of the screw rod 3008 with the rotation of the screw rod 3008, one end of the rotating shaft 3009 is connected with the adapter block of the clamping mechanism 2 through a second bearing 3005, so as to be fixed on the fixed rack of the clamping mechanism 2, and the other end is fixed on the rack of the turnover machine through a first bearing 3007.

[0056] As shown in Figure 6 , the working principle diagram of the rotating mechanism of the present application is shown, the third motor 3001 drives the first synchronous wheel 3006 to drive the screw rod 3008 (driving rotation point) to rotate, the rotation of the screw rod 3008 is converted into the linear motion of the nut 3003 in the direction of the arrow, the movement of the nut 3003 drives the clamping mechanism 2 and the rotating shaft 3009 to move, one end of the rotating shaft 3009 connected with the clamping mechanism 2 serves as a driven rotation point, and the other end fixed on the rack serves as a fixed rotation point, the rotation of the rotating mechanism 3 is completed through the movement of the nut 3003, and the product is turned from a horizontal state (0°) to a vertical state (90°).

[0057] Specifically, the rotating mechanism drives the product to turn an angle of 0°-90°, and any angle can be used as a detection position. For example, in the embodiment, the product to be detected is turned from a horizontal state to a vertical state, so that the screen of the product faces the detection personnel for picture detection.

[0058] More preferably, if the product to be detected is too large, the product can also be turned to 70° or 80° as needed for the convenience of detection personnel.

[0059] In an alternative embodiment, the first motor 1001, the second motor 2004 and the third motor 3001 are preferably servo motors, and the position of clamping and the operating parameters of the motors can be set according to different product sizes, so that the platform can adapt to products of sizes of 55-110 inches.

[0060] In a specific embodiment, leveling feet are arranged at the bottom of the frame to facilitate the adjustment of the balance of the turnover machine.

[0061] Reference is made to Figure 1 , Figure 2A , Figure 2B , Figure 4A and Figure 4B to describe the working process of the turnover machine of the present application,

[0062] After the product reaches the position of the assembly line, the inductor on the assembly line gives a product-reached-position signal, the assembly line stops conveying, and the manual connection group detects the mechanism; after the wire is successfully inserted, the manual button 5 is pressed, the product is lifted by the lifting mechanism 1 and separated from the assembly line; after the lifting is completed, the second motor 2004 of the clamping mechanism 2 operates to drive the first clamping member fixed profile 2001 and the second clamping member fixed profile 2002 to move towards each other, thereby tightening the clamping member to clamp the product; after the system senses that the clamping mechanism 2 clamps the product, the third motor 3001 of the rotating mechanism 3 operates to drive the slider 2008 on the lead screw 3008, thereby pushing the connecting rod mechanism to move and realize the rotation of the product from 0 degrees to 90 degrees. After the product is rotated to the position, the detection mechanism 4 automatically switches the test screen, and the manual inspection screen is checked for defects; after the inspection is completed, the completion button is pressed, the third motor 3001 of the rotating mechanism 3 is reversely operated to drive the slider 2008 on the lead screw 3008 to move reversely, thereby rotating the product from 90 degrees back to 0 degrees; at the same time, the lifting mechanism 1 is lifted to the receiving position; the clamping mechanism 2 releases the clamping member 2010 to put the product back on the lifting platform 1005; the lifting mechanism 1 lowers the product to the assembly line; the product flows to the next station after the over-station button is pressed.

[0063] The turnover machine of the present application for assisting in the display device fault defect verification test adopts a servo motor to drive a lead screw, and the slider on the lead screw and the rotating shaft form a connecting rod mechanism. The angle formed by the connecting rod mechanism in the present application adopts the connecting rod principle, which is beneficial to reducing the force required in the turnover process and reducing the torque required for the servo motor to drive the turnover.

[0064] Meanwhile, the present application is beneficial to the cooperation between the clamping mechanism and the rotating mechanism, realizes the grabbing of the product from the assembly line to the upright detection position, and completes the on-line picture test without the need to transport the product offline for picture detection.

[0065] The present application can realize online picture detection of large-size products from 55 inches to 110 inches, reduces the difficulty of manual operation, improves product yield and operation safety, and avoids falling and collision risks in the manual overturning process.

[0066] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms "first", "second", and similar terms used in the present application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "include", "contain", and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connect" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In the description of the present application, the terms "horizontal", "vertical", and the like indicate the orientation or positional relationship shown in the drawings, and are used only to facilitate the description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly, and therefore cannot be understood as a limitation on the present application.

[0067] At this point, those skilled in the art should realize that although the present application has been described with reference to the preferred embodiments, various modifications can be made to it and equivalent components can be substituted therefor without departing from the scope of the present application. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flipping machine for assisting in the verification and testing of display device malfunctions and defects, characterized in that, The device comprises a frame, and a lifting mechanism, a clamping mechanism, a rotating mechanism and a detecting mechanism fixed on the frame, wherein: the lifting mechanism is used for lifting the product to separate it from the assembly line and / or putting the detected product back to the assembly line; the clamping mechanism is arranged above the lifting mechanism and used for clamping the product lifted by the lifting mechanism; the rotating mechanism is used for rotating the product clamped by the automatic clamping mechanism; and the detecting mechanism is used for detecting the product rotated to the position. The rotating mechanism comprises a third motor and a connecting rod mechanism arranged oppositely, the connecting rod mechanism comprises a screw rod arranged along the width direction of the turnover machine and a rotating shaft slidably connected to one end of the screw rod, the other end of the rotating shaft is fixed to the frame of the turnover machine through a first bearing, the rotating shaft is fixedly connected to the clamping mechanism, and the screw rod is provided with a first synchronous wheel at the end away from the rotating shaft, the oppositely arranged first synchronous wheels are connected through a first synchronous belt, and the third motor drives the synchronous wheel to rotate the screw rod and drive the rotating shaft to move.

2. The flipper machine for assisting in conducting display device failure defect verification testing of claim 1, wherein, The lifting mechanism comprises a first motor, a gear, a rack engaged with the gear and a lifting platform fixedly connected to the rack, the first motor is fixed to the lower frame of the turnover machine and connected to a first shaft fixed to the lower frame of the turnover machine, the first motor drives the first shaft to rotate, the gear is arranged at the two ends of the first shaft respectively, the rack is engaged with the gear and can reciprocate up and down when the gear rotates, thereby driving the lifting platform to reciprocate up and down.

3. The flipper machine for assisting in conducting display device failure defect verification testing of claim 2, wherein, The clamping mechanism comprises a fixed frame, a belt centering mechanism fixed to the fixed frame, a second motor and clamping members symmetrically arranged on the belt centering mechanism, the second motor is fixed to the fixed frame through a second shaft, the belt centering mechanism is symmetrically arranged at the two ends of the second shaft and drives the clamping members to move oppositely to clamp the product under the drive of the second motor.

4. The flipper for assisting in conducting display device failure defect verification testing of claim 1, wherein, The rotating mechanism drives the product to rotate at an angle of 0°-90°.

5. The flipper for assisting in conducting display device failure defect verification testing of claim 1, wherein, The two ends of the screw rod are provided with sliding blocks, the sliding block away from the rotating shaft is provided with a nut, the sliding block is fixedly connected to the clamping mechanism, the nut moves linearly along the length of the screw rod with the rotation of the screw rod, one end of the rotating shaft is fixed to the fixed frame of the clamping mechanism, and the other end is fixed to the frame of the turnover machine.

6. The flipper machine for assisting in conducting display device failure defect verification testing of claim 3, wherein, The belt centering mechanism comprises symmetrically arranged first clamping member fixed profiles, second clamping member fixed profiles, second synchronous wheels respectively located at the two ends of the second shaft and a third synchronous wheel fixed to the fixed frame and located in the direction perpendicular to the second shaft, the second synchronous wheels and the third synchronous wheel are connected through a second synchronous belt, the first clamping member fixed profiles and the second clamping member fixed profiles are arranged perpendicularly to the direction of the second synchronous belt respectively, the first clamping member fixed profiles and the second clamping member fixed profiles are symmetrically provided with clamping members, and the second synchronous belt, the two ends of the first clamping member fixed profiles and the two ends of the second clamping member fixed profiles are fixed to the sliding blocks of the screw rod respectively.

7. The flipper machine for assisting in conducting display device failure defect verification testing of claim 6, wherein, The second shaft is also provided with a converter, which converts the rotation of the second motor into the driving shaft of the converter to drive the second synchronous wheel to rotate, thereby driving the first clamping member fixed profile and the second clamping member fixed profile to move towards each other.

8. The flipper machine for assisting in conducting display device failure defect verification testing of claim 6, wherein, The synchronous belt is fixed on the sliding block by a pressing plate.

9. The flipper for assisting in conducting display device failure defect verification testing of claim 3, wherein, The surface of the clamping member is provided with a protective piece.

10. The flipper machine for assisting in conducting display device failure defect verification testing of claim 6, wherein, The sliding blocks at the two ends of the same lead screw are located on the opposite sides of the lead screw.

11. The flipper machine for assisting in verifying the test of display device fault defects according to claim 1, wherein the bottom of the machine frame is provided with leveling feet.

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