A test fixture and test method for liquid crystal display production

Abstract

The invention discloses a test fixture and a test method for producing a liquid crystal display screen, and relates to the technical field of test fixtures for liquid crystal display screens. The test fixture and the test method for producing a liquid crystal display screen comprise a base, wherein a left support seat and a right support seat are fixed on the top of the base. When a frame is flipped, the inclined surface of the inclined surface plate presses the end point of an extrusion rod, thereby driving the extrusion rod to move upward, and the extrusion rod drives a moving plate to move upward, so that a piston rod drives a piston plate to move upward, and the piston plate sucks away air in a suction cup, so that the pressure inside the suction cup is reduced to be less than the atmospheric pressure outside the suction cup. Such a pressure difference causes the external atmospheric pressure to press the suction cup against a contact surface, so that the suction cup is adsorbed more tightly, thereby preventing the device from tipping over due to an unstable center of gravity of the display screen when the display screen is flipped.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid crystal display screen test jigs, and in particular to a test jig and a test method for producing liquid crystal display screens. Background Art

[0002] Liquid crystal display, also known as liquid crystal screen, is a type of flat panel display. It uses a liquid crystal solution in two polarized materials. When current passes through the liquid, the crystals are rearranged to achieve the purpose of imaging. During the production of LCD screens, the LCD screens need to be tested. During the traditional testing of LCD screens, the operator supports the LCD screen and then tests it, and then flips the LCD screen to test the other side of the LCD screen.

[0003] The patent with patent announcement number CN216926017U relates to a test fixture for liquid crystal display production, including a base, on which two oppositely arranged columns are provided; a mounting frame for fixing the liquid crystal display is provided between the two columns, the mounting frame is rotatably arranged on the columns through a horizontal rotating shaft, and a rotating mechanism for adjusting the rotation angle of the mounting frame is provided on the columns; the mounting frame includes a rectangular frame and a supporting base plate arranged in the rectangular frame; a fixing mechanism is provided outside the rectangular frame, the fixing mechanism includes a fixing plate arranged outside the rectangular frame, a guide column arranged on the fixing plate, and a pressing plate sleeved on the guide column, the guide column is provided with a first spring for driving the pressing plate to approach the supporting base plate, and the base plate at one end of the pressing plate is provided with a pressing block for pressing the liquid crystal display on the supporting base plate; the pressing plate is rotated so that the pressing block is located inside or outside the rectangular frame.

[0004] In the above patent, when the LCD screen is flipped over, the weight of each position of the screen is different, which will cause the center of gravity of the device to be unstable, causing the device to tip over, resulting in the LCD screen falling to the ground and being damaged, causing economic losses. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a test fixture and a test method for producing a liquid crystal display screen, which solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a test fixture for liquid crystal display production, comprising a base, a left support base and a right support base are fixed on the top of the base, a reduction motor is fixed on the right side of the right support base, a rotating column is fixed on the output end of the reduction motor, the rotating column passes through the right support base and is rotatably connected at the penetration point, a rotating rod is rotatably installed on the right side of the left support base, a frame is fixed on the end of the rotating rod away from the left support base, the right side of the frame is fixedly connected to the left end of the rotating column, a positioning assembly is provided on the frame, the positioning assembly comprises a bolt and a clamping plate, the bolt passes through the side wall of the frame and is threaded at the penetration point, the end point of the bolt is rotatably installed with a clamping plate, the LCD screen to be tested is placed in the frame, and the clamping plate is driven to move by rotating the bolt, so that the clamping plate can be The invention can clamp and position the liquid crystal display screen, and the clamping plate is slidably installed on the inner side of the frame. A stabilizing component is arranged on the top of the base, and also includes a protective component and a supporting component; wherein the stabilizing component includes a bevel disk, a transmission rod, an air box, a movable plate, a piston rod, a piston plate, an air pipe, a suction cup and a reset spring; the bevel disk is fixed to the outer wall of the rotating rod, and an air box is fixed to the inner side of the left supporting seat and the right supporting seat, and a piston rod passes through the top of the air box, and is slidably connected at the penetration point, a movable plate is fixed on the top of the piston rod, and a piston plate is fixed on the bottom of the piston rod, and the piston plate is slidably installed on the inner wall of the air box, and when the rotating rod rotates, the bevel disk can be driven to rotate, so that the inclined surface of the bevel disk will squeeze the transmission rod, so that the transmission rod moves upward, and the movable plate is driven upward by the transmission rod, so that the movable plate drives the piston rod and the piston plate to move upward.

[0007] According to the above technical solution, a return spring is fixed to the bottom of the movable plate, and the bottom of the return spring is fixed to the top of the air box. When the movable plate moves upward, the return spring can be stretched.

[0008] According to the above technical solution, an air pipe is fixed at the bottom of the air box, and a suction cup is fixed at the bottom of the air pipe. When the piston plate moves upward, the air in the suction cup can be sucked out through the air pipe. When the air in the suction cup is sucked out, the pressure inside the suction cup decreases and becomes less than the atmospheric pressure outside the suction cup. This pressure difference causes the external atmospheric pressure to press the suction cup against the contact surface, so that the suction cup is adsorbed more tightly.

[0009] According to the above technical solution, the protective assembly includes an extrusion rod, a rotating rod, a support plate, a rotating block and a reset torsion spring; the extrusion rod is fixed on the top of the movable plate, the side wall of the right support seat is rotatably installed with the rotating rod, the outer wall of the rotating rod is fixed with the support plate, and the outer wall of the rotating rod is fixed with the rotating block. When the movable plate moves upward, the movable plate can drive the extrusion rod to squeeze the rotating block, so that the rotating block can drive the support plate to rotate and drive the support plate to unfold.

[0010] According to the above technical solution, a return torsion spring is fixed to the side wall of the right support seat, and the side of the return torsion spring away from the right support seat is fixed to the side wall of the support plate.

[0011] According to the above technical solution, the support assembly includes a push rod, a round block, a rubber plate, a connecting spring, a hinge seat, a compression torsion spring, a support plate, a connecting spring and a ramp block. The push rod passes through the middle of the support plate and is slidably connected at the penetration point. A rubber plate is fixed to one end of the push rod, and a round block is fixed to the surface of the push rod, and the side wall of the round block is in contact with the side wall of the support plate.

[0012] According to the above technical solution, a hinge seat is fixed to the side wall of the support plate, a support plate is rotatably installed on the inner side of the hinge seat, a compression torsion spring is fixed to the side wall of the support plate, and the side of the compression torsion spring away from the support plate is fixed to the inner side of the hinge seat. When the rubber plate is subjected to extrusion force, the rubber plate will be close to the support plate, so that the push rod can squeeze the inclined surface block of the inclined surface block, so that the inclined surface block will be moved away from the surface of the support plate. Through the cooperation of the compression torsion spring, the compression torsion spring can drive the support plate to unfold.

[0013] According to the above technical solution, a connecting spring is fixed to the inner side of the outer wall of the support plate, and a slope block is fixed to the side wall of the connecting spring.

[0014] A test method for producing a liquid crystal display screen, using the test fixture for producing a liquid crystal display screen as described above, comprises the following steps: Step 1: When the LCD screen needs to be tested, the LCD screen is placed in the frame, and the bolts are turned to drive the clamping plate to move, so that the LCD screen in the frame can be clamped by the clamping plate; Step 2: By starting the reduction motor, the direction of the LCD screen can be adjusted, and the test tool is used to test various positions of the LCD screen; Step 3: When the frame rotates, the inclined surface of the inclined surface plate squeezes the transmission rod to move upward, thereby driving the moving plate to move upward, causing the piston rod to drive the piston plate to move upward, and the air in the suction cup is sucked out through the air pipe, so that the suction cup can be adsorbed on the ground; Step 4: When the moving plate moves upward, the squeezing rod can squeeze the rotating block, so that the rotating rod can drive the supporting plate to unfold, so that when the LCD screen on the frame falls, the LCD screen can be caught by the supporting plate.

[0015] The present invention provides a test fixture and a test method for liquid crystal display production. It has the following beneficial effects: (1) In the present invention, when the frame is flipped, the inclined surface of the inclined plate will press the end point of the squeezing rod, thereby driving the squeezing rod to move upward, causing the squeezing rod to drive the movable plate to move upward, thereby causing the piston rod to drive the piston plate to move upward, causing the piston plate to suck away the air in the suction cup, thereby reducing the pressure inside the suction cup and making it less than the atmospheric pressure outside the suction cup. This pressure difference causes the external atmospheric pressure to press the suction cup against the contact surface, thereby making the suction cup adhere more tightly, thereby preventing the device from tipping over due to the unstable center of gravity of the display screen when the display screen is flipped.

[0016] (2) In the present invention, when the movable plate moves upward, the squeezing rod squeezes the rotating block, thereby enabling the rotating block to flip over, thereby driving the support plate to flip over through the rotating rod, so that the two sets of support plates are unfolded, thereby achieving a protective effect. When the display screen is flipped over, if the display screen falls, the support plate can catch the display screen to prevent it from falling to the ground and being damaged.

[0017] (3) According to the invention, when the display screen falls on the pallet, the rubber plate will be squeezed and moved closer to the pallet. By cooperating with the push rod and the inclined block, the inclined block can be moved away from the surface of the support plate without blocking the support plate. By cooperating with the compression torsion spring, the support plate can be flipped out from the pallet to provide support. When the display screen falls on the pallet, the device may fall over due to gravity. By supporting the device on the ground with the support plate, the device can be prevented from falling over. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 It is a partial structural schematic diagram of the present invention; Figure 4 For the present invention Figure 2 A magnified schematic diagram of the structure of A; Figure 5 It is a partial structural schematic diagram of the stabilizing component and the protective component of the present invention; Figure 6 This is a schematic diagram of the structure of the protection component and the support component of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of B.

[0019] In the figure: 1. base; 2. left support seat; 3. reduction motor; 4. rotating column; 5. rotating rod; 6. frame; 7. positioning assembly; 81. inclined plate; 82. transmission rod; 83. air box; 84. piston plate; 85. piston rod; 86. moving plate; 87. reset spring; 88. air pipe; 89. suction cup; 91. extrusion rod; 92. rotating rod; 93. support plate; 94. rotating block; 95. reset torsion spring; 101. push rod; 102. rubber plate; 103. round block; 104. hinge seat; 105. support plate; 106. compression torsion spring; 107. connecting spring; 108. inclined block; 11. right support seat. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 4, one embodiment of the present invention is: a test fixture for producing liquid crystal display screens, comprising a base 1, a left support seat 2 and a right support seat 11 are fixed on the top of the base 1, a reduction motor 3 is fixed to the right side of the right support seat 11, a rotating column 4 is fixed to the output end of the reduction motor 3, the rotating column 4 penetrates the right support seat 11, and is rotatably connected at the penetration point, a rotating rod 5 is rotatably installed on the right side of the left support seat 2, a frame 6 is fixed to the end of the rotating rod 5 away from the left support seat 2, the right side of the frame 6 is fixedly connected to the left end of the rotating column 4, a positioning assembly 7 is provided on the frame 6, the positioning assembly 7 comprises a bolt and a clamping plate, the bolt penetrates the side wall of the frame 6, and is threadedly connected at the penetration point, a clamping plate is rotatably installed at the end point of the bolt, and the clamping plate is slidably installed on the inner side of the frame 6, and the bolt can be moved in the frame 6 by rotating the bolt forward, thereby driving the clamping plate to move, The LCD screen in the frame 6 can be clamped and fixed through the clamping plate, and a stabilizing component is arranged on the top of the base 1; wherein, the stabilizing component includes a bevel plate 81, a transmission rod 82, an air box 83, a movable plate 86, a piston rod 85, a piston plate 84, an air pipe 88, a suction cup 89 and a return spring 87; the bevel plate 81 is fixed to the outer wall of the rotating rod 5, and the air box 83 is fixed to the inner side of the left support seat 2 and the right support seat 11, the top of the air box 83 is penetrated by the piston rod 85, and the penetration is slidably connected, the top of the piston rod 85 is fixed with a movable plate 86, the bottom of the piston rod 85 is fixed with a piston plate 84, and the piston plate 84 is slidably installed on the inner wall of the air box 83, the bottom of the movable plate 86 is fixed with a return spring 87, the bottom of the return spring 87 is fixed to the top of the air box 83, the bottom of the air box 83 is fixed with an air pipe 88, and the bottom of the air pipe 88 is fixed with a suction cup 89.

[0022] The transmission rod 82 drives the movable plate 86 to move upward, so that the movable plate 86 drives the piston rod 85 to move upward, and the piston rod 85 drives the piston plate 84 to move upward. The air in the suction cup 89 can be sucked out through the air pipe 88, so that the pressure inside the suction cup 89 is reduced and becomes less than the atmospheric pressure outside the suction cup 89. This pressure difference causes the external atmospheric pressure to press the suction cup 89 against the contact surface, so that the suction cup 89 is adsorbed more tightly, preventing the device from tipping over due to the unstable center of gravity of the display screen when the display screen is flipped.

[0023] When the present embodiment is working: when the device needs to be used, the device is placed in a suitable place so that the suction cup 89 is attached to the placement surface, and the LCD screen is placed in the frame 6, and the bolt is moved by rotating the bolt, and the LCD screen is clamped and fixed by two sets of clamping plates, and when the LCD screen is clamped, when the LCD screen needs to be flipped, the reduction motor 3 is started, so that the rotating column 4 drives the frame 6 to rotate, so that the LCD screen in the frame 6 rotates, and when the frame 6 rotates, the inclined surface disk 81 can be rotated, so that the inclined surface of the inclined surface disk 81 squeezes the end point of the transmission rod 82, drives the transmission rod 82 to move upward, and the transmission rod 82 drives the moving plate 86 to move upward, so that the moving plate 86 drives the piston rod 85 and the piston plate 84 in the air box 83 to move upward, and the air in the suction cup 89 can be sucked out through the air pipe 88, so that the suction cup 89 The internal pressure decreases and becomes less than the atmospheric pressure outside the suction cup 89. This pressure difference causes the external atmospheric pressure to press the suction cup 89 against the contact surface, thereby making the suction cup 89 adhere more tightly. When the LCD screen rotates to a vertical state, the transmission rod 82 will not contact the inclined plate 81. As the movable plate 86 moves upward, the movable plate 86 will drive the reset spring 87 to stretch, so that the movable plate 86 can move downward, thereby enabling the movable plate 86 to drive the transmission rod 82 to move downward, so that the transmission rod 82 is reset. When the movable plate 86 moves downward, the piston plate 84 can add the air in the air box 83 to the suction cup 89 through the air pipe 88. The air pressure inside the suction cup 89 is balanced with the external atmospheric pressure, the pressure difference between the suction cup 89 and the external surface disappears, the adsorption force is weakened, and the suction cup 89 will lose its adsorption capacity, thereby releasing the stable adsorption of the device and facilitating the movement of the device.

[0024] See also Figure 1-Figure 7 On the basis of the above embodiment, another embodiment of the present invention further includes a protective component and a supporting component, the protective component includes an extrusion rod 91, a rotating rod 92, a support plate 93, a rotating block 94 and a reset torsion spring 95; the extrusion rod 91 is fixed to the top of the movable plate 86, the side wall of the right support seat 11 is rotatably installed with a rotating rod 92, the outer wall of the rotating rod 92 is fixed with a support plate 93, the outer wall of the rotating rod 92 is fixed with a rotating block 94, the side wall of the right support seat 11 is fixed with a reset torsion spring 95, the side of the reset torsion spring 95 away from the right support seat 11 is fixed to the side wall of the support plate 93, the support plate 93 is provided with two groups, and the two groups of support plates 93 are symmetrically arranged with the center line in the vertical direction of the base 1 as the symmetry axis, and the flipping and unfolding of the support plate 93 can play a protective effect to prevent the display screen from falling when the display screen is flipped. The display screen can be caught by the setting of the support plate 93, thereby preventing the display screen from falling to the ground and being damaged.

[0025] The support assembly includes a push rod 101, a round block 103, a rubber plate 102, a connecting spring 107, a hinge seat 104, a compression torsion spring 106, a support plate 105, a connecting spring 107 and a ramp block 108. The push rod 101 runs through the middle of the support plate 93, and the penetration is slidably connected. The rubber plate 102 is fixed to one end of the push rod 101, and the round block 103 is fixed to the outer surface of the push rod 101. The side wall of the round block 103 is in contact with the side wall of the support plate 93, and the side wall of the support plate 93 is fixed with the hinge seat 104. The hinge seat 1 04 is rotatably mounted with a support plate 105 on the inner side, a compression torsion spring 106 is fixed to the side wall of the support plate 105, the side of the compression torsion spring 106 away from the support plate 105 is fixed to the inner side of the hinge seat 104, a connecting spring 107 is fixed to the inner side of the outer wall of the support plate 93, a ramp block 108 is fixed to the side wall of the connecting spring 107, by arranging the rubber plate 102, when the display screen falls onto the rubber plate 102, because the rubber plate 102 is made of soft material, it can prevent the display screen from being damaged when it falls onto the support plate 93.

[0026] Two groups of support plates 105 are provided, and the two groups of support plates 105 are symmetrically arranged with the center line in the vertical direction of the base 1 as the symmetry axis. When the display screen falls on the rubber plate 102, the rubber plate 102 will be squeezed to move closer to the support plate 93, so that the limit on the support plate 105 can be released, and the support plate 105 can be unfolded. Therefore, when the display screen falls on the support plate 93 and the device is tilted, the support plate 105 can be supported on the ground to support the device and improve the stability of the device.

[0027] A test method for producing a liquid crystal display screen, using the above-mentioned test fixture for producing a liquid crystal display screen, comprises the following steps: Step 1: When the LCD screen needs to be tested, the LCD screen is placed in the frame 6, and the clamping plate is driven to move by rotating the bolt, so that the LCD screen in the frame 6 can be clamped by the clamping plate; Step 2: By starting the reduction motor 3, the direction of the LCD screen can be adjusted, and the test tool is used to test various positions of the LCD screen; Step 3: When the frame 6 rotates, the inclined surface of the inclined plate 81 squeezes the transmission rod 82 to move upward, thereby driving the moving plate 86 to move upward, causing the piston rod 85 to drive the piston plate 84 to move upward, and the air in the suction cup 89 is sucked out through the air pipe 88, so that the suction cup 89 can be adsorbed on the ground; Step 4: When the moving plate 86 moves upward, the squeezing rod 91 can squeeze the rotating block 94, so that the rotating rod 92 can drive the supporting plate 93 to unfold, so that when the LCD screen on the frame 6 falls, the LCD screen can be caught by the supporting plate 93.

[0028] When the present embodiment is working, when the movable plate 86 moves upward, the movable plate 86 can drive the extrusion rod 91 to move upward, so that the extrusion rod 91 can extrude the rotating block 94. When the rotating block 94 is subjected to the extrusion force, the rotating block 94 can drive the rotating rod 92 to rotate, so that the rotating rod 92 can drive the supporting plate 93 to unfold, and when the rotating rod 92 rotates, the return torsion spring 95 can be contracted and deformed, and the two sets of supporting plates 93 can be unfolded, so as to play a protective effect, and when the return spring 87 drives the movable plate 86 to move downward, the movable plate 86 can drive the extrusion rod 91 to move downward, so that the extrusion rod 91 does not extrude the rotating block 94, and because the return torsion spring 95 is in a contracted and deformed state, the return torsion spring 95 can drive the rotating rod 92 and the supporting plate 93 to be reset and retracted, preventing the supporting plate 93 from being in the unfolded state, which is quite troublesome.

[0029] When the support plate 93 is in the unfolded state, when the LCD screen falls during the flipping process, the LCD screen will fall on the rubber plate 102, so that the rubber plate 102 will be squeezed to move closer to the support plate 93, so that the rubber plate 102 can drive the push rod 101 to move, so that the push rod 101 can squeeze the inclined surface of the inclined surface block 108, so that the inclined surface block 108 can be moved away from the surface of the support plate 105 without blocking the support plate 105, and when the inclined surface block 108 moves, it can squeeze the connecting spring 107 to be compressed, and when the inclined surface block 108 does not block the support plate 105, because the compression torsion spring 106 is in a compressed state, the compression torsion spring 106 can drive the support plate 105 to unfold, so as to support the device. The effect is to prevent the display screen from falling on the rubber plate 102 and causing the device to topple over due to gravity. The support of the support plate 105 can prevent the device from toppling over. When the display screen is removed from the rubber plate 102, the rubber plate 102 is not subjected to extrusion force and the connecting spring 107 is in a compressed state, so that the inclined plane block 108 can be reset. When it is necessary to reset the support plate 105, the two groups of inclined plane blocks 108 on the support plate 93 are moved away from each other, and the support plate 105 is rotated toward the support plate 93 to compress and deform the compression torsion spring 106. When the support plate 105 is rotated to the right side of the inclined plane block 108, the inclined plane block 108 is released, and the inclined plane block 108 can be reset by the connecting spring 107, so that the inclined plane block 108 blocks and limits the support plate 105.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A test fixture for liquid crystal display production, comprising a base (1), characterized in that: A left support seat (2) and a right support seat (11) are fixed on the top of the base (1), a reduction motor (3) is fixed on the right side of the right support seat (11), a rotating column (4) is fixed on the output end of the reduction motor (3), the rotating column (4) passes through the right support seat (11) and is rotatably connected at the penetration point, a rotating rod (5) is rotatably installed on the right side of the left support seat (2), a frame (6) is fixed on the end of the rotating rod (5) away from the left support seat (2), the right side of the frame (6) is fixedly connected to the left end of the rotating column (4), a positioning component (7) is arranged on the frame (6), the positioning component (7) comprises a bolt and a clamping plate, the bolt passes through the side wall of the frame (6) and is threaded at the penetration point, the end point of the bolt is rotatably installed with a clamping plate, and the clamping plate is slidably installed on the inner side of the frame (6), and a stabilizing component is arranged on the top of the base (1), and also comprises a protective component and a supporting component; The stabilizing component comprises a bevel plate (81), a transmission rod (82), an air box (83), a movable plate (86), a piston rod (85), a piston plate (84), an air pipe (88), a suction cup (89) and a return spring (87); the bevel plate (81) is fixed to the outer wall of the rotating rod (5); the air box (83) is fixed to the inner sides of the left support seat (2) and the right support seat (11); the top of the air box (83) is penetrated by a piston rod (85) and the penetration is slidably connected; the top of the piston rod (85) is fixed with a movable plate (86); the bottom of the piston rod (85) is fixed with a piston plate (84); the piston plate (84) is slidably mounted on the inner wall of the air box (83).

2. A test fixture for liquid crystal display production according to claim 1, characterized in that: A return spring (87) is fixed to the bottom of the movable plate (86), and the bottom of the return spring (87) is fixed to the top of the air box (83).

3. A test fixture for liquid crystal display production according to claim 2, characterized in that: An air pipe (88) is fixed to the bottom of the air box (83), and a suction cup (89) is fixed to the bottom of the air pipe (88).

4. The test fixture for producing a liquid crystal display according to claim 3, characterized in that: The protection assembly comprises an extrusion rod (91), a rotating rod (92), a support plate (93), a rotating block (94) and a return torsion spring (95); the extrusion rod (91) is fixed to the top of the movable plate (86); the rotating rod (92) is rotatably mounted on the side wall of the right support seat (11); the support plate (93) is fixed to the outer wall of the rotating rod (92); and the rotating block (94) is fixed to the outer wall of the rotating rod (92).

5. The test fixture for producing a liquid crystal display according to claim 4, characterized in that: A return torsion spring (95) is fixed to the side wall of the right support seat (11); the return torsion spring (95) is fixed to the side wall of the support plate (93) on a side away from the right support seat (11).

6. The test fixture for producing a liquid crystal display according to claim 5, characterized in that: The support assembly comprises a push rod (101), a round block (103), a rubber plate (102), a connecting spring (107), a hinge seat (104), a compression torsion spring (106), a support plate (105), a connecting spring (107) and a slope block (108); the push rod (101) passes through the middle of the support plate (93) and is slidably connected at the penetration point; one end of the push rod (101) is fixed with a rubber plate (102); the outer surface of the push rod (101) is fixed with a round block (103); the side wall of the round block (103) is in contact with the side wall of the support plate (93).

7. The test fixture for producing a liquid crystal display according to claim 6, characterized in that: A hinge seat (104) is fixed to the side wall of the support plate (93), a support plate (105) is rotatably mounted on the inner side of the hinge seat (104), a compression torsion spring (106) is fixed to the side wall of the support plate (105), and the side of the compression torsion spring (106) away from the support plate (105) is fixed to the inner side of the hinge seat (104).

8. The test fixture for producing a liquid crystal display according to claim 7, characterized in that: A connecting spring (107) is fixed to the inner side of the outer wall of the support plate (93), and a slope block (108) is fixed to the side wall of the connecting spring (107).

9. A method for testing a liquid crystal display screen in production, using the test fixture for testing a liquid crystal display screen in production according to claim 8, characterized in that: The following steps are involved: Step 1: When the LCD screen needs to be tested, the LCD screen is placed in the frame (6), and the bolt is rotated to drive the clamping plate to move, so that the LCD screen in the frame (6) can be clamped by the clamping plate; Step 2: By starting the reduction motor (3), the direction of the liquid crystal display screen can be adjusted, and the test tool is used to perform a test operation on each position of the liquid crystal display screen; Step 3: When the frame (6) rotates, the inclined surface of the inclined plate (81) squeezes the transmission rod (82) to move upward, thereby driving the moving plate (86) to move upward, causing the piston rod (85) to drive the piston plate (84) to move upward, and the air in the suction cup (89) is sucked out through the air pipe (88), so that the suction cup (89) can be adsorbed on the ground; Step 4: When the moving plate (86) moves upward, the squeezing rod (91) can squeeze the rotating block (94), so that the rotating rod (92) can drive the supporting plate (93) to unfold, so that when the liquid crystal display screen on the frame (6) falls, the liquid crystal display screen can be caught by the supporting plate (93).

Images