Display screen fitting jig

Abstract

The invention discloses a display screen attaching jig, and particularly relates to the field of display screen jigs, the display screen attaching jig comprises a base table, a limiting groove is formed in the middle of the upper surface of the base table, a fixed rod is fixedly connected to the inner wall of one side of the limiting groove, and a movable rod is connected to the inner wall of the side, opposite to the fixed rod, of the limiting groove through a bearing; a connecting ring is arranged in the middle of the limiting groove, a rotating disc is slidably connected to the top of the connecting ring through a sliding rail, a limiting frame is arranged in the middle of the rotating disc, and transverse clamping plates are arranged on the two sides of the limiting frame; according to the application, the two groups of transverse clamping plates can be driven to synchronously move in opposite directions through single driving of an electric push rod, so that one side of the display screen is limited, and meanwhile, a longitudinal clamping plate and the transverse clamping plates form proportional linkage through compound transmission of a driving gear, a rack and a threaded cylinder; synchronous clamping of the transverse clamping plate and the longitudinal clamping plate according to the proportion of 16: 9 is achieved, and the four edges of a screen are evenly stressed.

Description

Technical Field

[0001] This application relates to the field of display fixtures. More specifically, this application relates to a display bonding fixture. Background Art

[0002] Welding and bonding fixtures are common in the electronics industry and are widely used in various screen weldings. In this industry, they are mainly used for positioning and fixing integrated circuit boards, so as to facilitate the bonding of the screen and the backplane, and the welding of components and wiring on the integrated circuit board; After retrieval, the existing patent (Publication No.: CN216882174U) discloses a display welding and processing fixture, including a support plate, a positioning and fixing component, a fine-tuning positioning and fixing component, a guiding and anti-deviation component, a first positioning plate and a second positioning plate. The positioning and fixing component and the fine-tuning positioning and fixing component are both arranged on the support plate. The positioning and fixing component and the fine-tuning positioning and fixing component are respectively located at both ends of the support plate. The first positioning plate is arranged on the positioning and fixing component. The guiding and anti-deviation component is arranged on the fine-tuning positioning and fixing component. The second positioning plate is arranged on the guiding and anti-deviation component. The second positioning plate and the first positioning plate are arranged corresponding to each other. The inventor found the following problems in the process of implementing this application: During the limiting process of the existing display bonding fixture, unilateral or corresponding bilateral clamps are often used for clamping and limiting, and the functions of synchronous limiting in the horizontal and vertical directions are not available. Therefore, microcracks are easily generated at the edges of the flexible screen or local warping is caused during clamping; Therefore, a display bonding fixture is proposed to solve the above problems. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, this application provides a display bonding fixture to solve the problems raised in the above background art.

[0004] To achieve the above object, this application provides the following technical solution: A display bonding fixture includes a base. A limiting groove is provided in the middle of the upper surface of the base. A fixed rod is fixedly connected to one inner wall of the limiting groove. The inner wall of the limiting groove on the side opposite to the fixed rod is connected by a bearing to a movable rod. A connecting ring is provided in the middle of the limiting groove. Both the fixed rod and the movable rod penetrate through the outer wall of the connecting ring and are connected to the connecting ring by bearings. The top of the connecting ring is slidably connected to a rotating disk through a slide rail. A support top frame is fixedly connected to the outer wall of one side of the upper surface of the base. A hot pressing welding head is provided at the top of the support top frame. A limiting frame is provided in the middle of the rotating disk. Transverse clamping plates are provided on both sides of the limiting frame. An electric push rod is fixedly connected to one inner wall of the limiting frame. The output end of the electric push rod is connected to one of the transverse clamping plates.

[0005] Preferably, guide rods are arranged on the opposite sides of the two groups of transverse clamping plates. One end of each guide rod away from the transverse clamping plate penetrates through the outer wall of the limit frame. Connecting cylinders are fixedly connected to the outer walls of the two sides of the limit frame adjacent to the transverse clamping plates. Push rods are fixedly connected to both ends of the opposite side surfaces of the two groups of transverse clamping plates. One end of each push rod away from the transverse clamping plate is embedded in the connecting cylinder. Rack bars are fixedly connected to the ends of the two push rods, and the two rack bars are arranged oppositely.

[0006] Preferably, a threaded cylinder is connected to the center of the connecting cylinder through a bearing. A driving gear is fixedly connected to the outer wall of the threaded cylinder. The two rack bars are respectively arranged on both sides of the driving gear and are both engaged with the driving gear.

[0007] Preferably, a threaded rod is threadedly connected to the inner wall of the middle part of the threaded cylinder. Both ends of the threaded rod penetrate through the outer wall of the connecting cylinder. One end of the outer wall of the threaded rod close to the center of the limit frame is fixedly connected with a longitudinal clamping plate. A limit cylinder is arranged on the outer wall of the top of the connecting cylinder. A limit rod is fixedly connected to the outer wall of the top of the longitudinal clamping plate, and the limit rod penetrates through the limit cylinder.

[0008] Preferably, adjusting cylinders are sleeved on the opposite outer walls of the fixed rod and the movable rod. The adjusting cylinders are movably connected to the fixed rod and the movable rod. A first tooth disc is fixedly connected to the outer wall of one side of the fixed rod. A first tooth groove is arranged at one end of the adjusting cylinder close to the first tooth disc, and the first tooth groove corresponds to the first tooth disc.

[0009] Preferably, a second tooth disc is fixedly connected to the outer wall of one side of the movable rod. A second tooth groove is arranged at one end of the adjusting cylinder close to the second tooth disc, and the second tooth groove corresponds to the second tooth disc. A power-driven telescopic rod is fixedly connected to one side of the bottom of the connecting ring. A connecting block is fixedly connected to the end of the power-driven telescopic rod, and the connecting block is fixedly connected to the outer wall of the adjusting cylinder.

[0010] Preferably, a bevel gear ring is fixedly connected to the bottom edge of the rotating disc. A bevel gear is fixedly connected to the outer wall of one side of the movable rod, and the bevel gear is engaged with the bevel gear ring.

[0011] Preferably, a driving cavity is arranged on one side of the base. One end of the movable rod extends into the driving cavity and is connected to the inner wall of the driving cavity through a bearing. A worm gear is fixedly connected to the outer wall of the movable rod on one side in the driving cavity. A worm is connected to the inner wall of one side of the driving cavity through a bearing, and the worm is engaged with the worm gear. An adjusting knob is arranged on the upper surface of one side of the base, and the adjusting end of the adjusting knob is connected to the worm.

[0012] Preferably, adsorption holes are arranged on the surface of the limit frame, an adsorption cavity is arranged inside the limit frame, the adsorption cavity is communicated with the adsorption holes, one side of the adsorption cavity is communicated with an air pipe, one end of the air pipe extends outside the limit frame, and an air pump is communicated with the end of the air pipe.

[0013] Preferably, a controller is arranged on one side of the upper surface of the base, a level is arranged on one side surface of the rotating disk, and the controller is electrically connected to the level and the electric telescopic rod.

[0014] The technical effects and advantages of this application: 1. Compared with the prior art, this display screen laminating jig can drive the two groups of transverse clamping plates to move synchronously in opposite directions through the single drive of the electric push rod, so as to realize the limit of one side of the display screen. At the same time, the longitudinal clamping plate forms a proportional linkage with the transverse clamping plate through the compound transmission of the driving gear, rack and threaded cylinder, and realizes the synchronous clamping of the transverse clamping plate and the longitudinal clamping plate according to the ratio of 16:9, so that the four sides of the screen are evenly stressed, eliminating the screen distortion caused by the asynchronous stroke of the traditional fixture, ensuring that the clamping force is concentrated on the edge of the effective area of the screen, and avoiding the compression of the invalid area.

[0015] 2. Compared with the prior art, the rotating ring and the adjusting cylinder of this display screen laminating jig are synchronously connected under the connection action of the electric telescopic rod and the connecting block. The electric telescopic rod can push the connecting block to move horizontally, thereby driving the adjusting cylinder to move horizontally. The rotating disk can be tilted and rotated horizontally at the same time. Tilting can adjust the inclination of the fixed display screen, so as to facilitate the observation of the solder joints at multiple angles of the display screen, reduce the visual blind area, and rotation allows the screen to be welded sequentially from the optimal angle during screen lamination welding. During continuous operation of multiple solder joints, stress cumulative deformation caused by multiple pressures at a single angle is avoided. Description of the drawings

[0016] Figure 1 It is a schematic three-dimensional structure diagram of the whole application; Figure 2 It is a schematic three-dimensional structure diagram of the limit frame of the application; Figure 3 It is a schematic diagram of the internal connection structure of the connecting cylinder of the application; Figure 4 It is a schematic diagram of the connection structure between the threaded cylinder and the driving gear of the application; Figure 5 It is a schematic diagram of the internal structure of the limit groove of the application; Figure 6 It is a schematic diagram of the connection structure between the connecting ring and the fixed rod of the application; Figure 7 It is a schematic diagram of the connection structure between the first gear disk and the first tooth groove of the application; Figure 8 Schematic diagram of the connection structure between the second gear disk and the second tooth groove of the present application; Figure 9 Schematic diagram of the connection structure between the adsorption cavity and the trachea of the present application.

[0017] The reference numerals are: 1, base; 2, limit groove; 3, fixed rod; 4, movable rod; 5, connecting ring; 6, rotating disk; 7, supporting top frame; 8, hot press welding head; 9, limit frame; 10, horizontal clamping plate; 11, guide rod; 12, electric push rod; 13, connecting cylinder; 14, push rod; 15, rack; 16, threaded cylinder; 17, driving gear; 18, threaded rod; 19, vertical clamping plate; 20, limit cylinder; 21, limit rod; 22, adjusting cylinder; 23, first gear disk; 24, first tooth groove; 25, second gear disk; 26, second tooth groove; 27, electric telescopic rod; 28, connecting block; 29, bevel gear ring; 30, bevel gear; 31, driving cavity; 32, worm gear; 33, worm; 34, adjusting knob; 35, adsorption cavity; 36, trachea; 37, air pump; 38, controller; 39, level; 40, adsorption hole. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0019] Embodiment 1: As shown in the attached Figures 1 to 9 A display screen laminating jig, including a base 1, a limit groove 2 is arranged in the middle of the upper surface of the base 1, a fixed rod 3 is fixedly connected to one inner wall of the limit groove 2, a movable rod 4 is connected to the other inner wall of the limit groove 2 relative to the fixed rod 3 through a bearing, a connecting ring 5 is arranged in the middle of the limit groove 2, both the fixed rod 3 and the movable rod 4 penetrate through the outer wall of the connecting ring 5 and are connected to the connecting ring 5 through bearings, the top of the connecting ring 5 is slidably connected with a rotating disk 6 through a slide rail, a supporting top frame 7 is fixedly connected to one outer wall of the upper surface of the base 1, a hot press welding head 8 is arranged on the top of the supporting top frame 7, a limit frame 9 is arranged in the middle of the rotating disk 6, horizontal clamping plates 10 are arranged on both sides of the limit frame 9, an electric push rod 12 is fixedly connected to one inner wall of the limit frame 9, and the output end of the electric push rod 12 is connected to one of the horizontal clamping plates 10.

[0020] Among them, the base 1 plays a fixing role. The display screen to be attached is placed in the limiting frame 9 in the middle of the rotating disk 6. The electric push rod 12 is started. The electric push rod 12 pushes the lateral clamping plate 10 on one side to move towards the other side. Through the guiding action of the guide rod 11, the two groups of lateral clamping plates 10 symmetrically clamp the edge of the display screen synchronously, ensuring uniform force and no deviation. The support top frame 7 plays a supporting role, and at the same time, a cylinder pushing component is arranged inside for adjustment. Through the hot pressing welding head 8, the positioned display screen and the base material can be hot press welded. The fixed rod 3 and the movable rod 4 both play a limiting role. The fixed rod 3 and the movable rod 4 are on the same straight line. The connecting ring 5 can adjust the angle of inclination along the fixed rod 3 and the movable rod 4. The rotating disk 6 can rotate on the top of the connecting ring 5. [[ID=~1]] [[ID=~2]]

[0021] [[ID=~3]]Embodiment 2: On the basis of Embodiment 1, the solution in Embodiment 1 is further refined and introduced in combination with the following specific working methods, as [[ID=~4]] Figures 1 to 9 [[ID=~5]]shown, and the details are described below: [[ID=~6]] [[ID=~7]]As a preferred implementation method, guide rods 11 are arranged on the opposite sides of the two groups of lateral clamping plates 10. One end of the guide rod 11 away from the lateral clamping plate 10 penetrates through the outer wall of the limiting frame 9. Connecting cylinders 13 are fixedly connected to the outer walls of the two sides of the limiting frame 9 adjacent to the lateral clamping plates 10. Push rods 14 are fixedly connected to both ends of the opposite side surfaces of the two groups of lateral clamping plates 10. One end of the push rod 14 away from the lateral clamping plate 10 is embedded in the connecting cylinder 13. Rack bars 15 are fixedly connected to the ends of the two groups of push rods 14. The two groups of rack bars 15 are arranged oppositely. A threaded cylinder 16 is connected to the center of the connecting cylinder 13 through a bearing. A driving gear 17 is fixedly connected to the outer wall of the threaded cylinder 16. The two groups of rack bars 15 are respectively arranged on both sides of the driving gear 17 and are both engaged with the driving gear 17. The guide rod 11 plays a limiting role. When one lateral clamping plate 10 is pushed for clamping, the push rod 14 drives the rack bar 15 to move synchronously. The rack bar 15 drives the driving gear 17 to rotate, thereby driving the other rack bar to perform a translational movement in the opposite direction, so as to realize the synchronous movement of the two groups of lateral clamping plates 10 in the opposite direction, thereby realizing the one-side limiting of the display screen. [[ID=~8]] [[ID=~9]]

[0022] As a preferred embodiment, a threaded rod 18 is threadedly connected to the inner wall of the middle part of the threaded cylinder 16. Both ends of the threaded rod 18 penetrate through the outer wall of the connecting cylinder 13. And a longitudinal clamping plate 19 is fixedly connected to the outer wall of one end of the threaded rod 18 near the center of the limiting frame 9. A limiting cylinder 20 is arranged on the outer wall of the top of the connecting cylinder 13. A limiting rod 21 is fixedly connected to the outer wall of the top of the longitudinal clamping plate 19. The limiting rod 21 penetrates through the limiting cylinder 20. Among them, the rotation of the driving gear 17 can drive the threaded cylinder 16 to rotate. The threaded cylinder 16 drives the threaded rod 18 to axially move. The threaded rod 18 pushes the longitudinal clamping plate 19 to move. At the same time, the position is limited by the limiting rod 21. The two transverse clamping plates 10 are linked through the guide rod 11 to ensure symmetric clamping. The longitudinal clamping plate 19 forms a proportional linkage with the transverse clamping plate 10 through the compound transmission of the driving gear 17, the rack 15 and the threaded cylinder 16. The number of teeth of the driving gear 17 is designed to be 16 teeth. The modulus of the rack 15 matches the modulus of the driving gear 17. The threaded cylinder 16 and the threaded rod 18 adopt a single-start trapezoidal thread. The lead is set to 9 mm. When the rack 15 translates 16 mm and the driving gear 17 rotates one circle, the threaded rod 18 drives the longitudinal clamping plate 19 to axially move 9 mm. The transverse clamping plate 10 and the longitudinal clamping plate 19 are synchronously clamped in a ratio of 16:9, so that the four sides of the screen are uniformly stressed, eliminating the screen distortion caused by the asynchronous stroke of the traditional fixture. The ratio of 16:9 matches the aspect ratio of the mainstream display screen, ensuring that the clamping force is concentrated on the edge of the effective area of the screen and avoiding the compression of the invalid area.

[0023] As a preferred embodiment, adjusting cylinders 22 are sleeved on the outer walls of the opposite sides of the fixed rod 3 and the movable rod 4. The adjusting cylinders 22 are movably connected to the fixed rod 3 and the movable rod 4. A first gear disk 23 is fixedly connected to the outer wall of one side of the fixed rod 3. A first tooth groove 24 is provided at the end of the adjusting cylinder 22 close to the first gear disk 23. The first tooth groove 24 corresponds to the first gear disk 23. A second gear disk 25 is fixedly connected to the outer wall of one side of the movable rod 4. A second tooth groove 26 is provided at the end of the adjusting cylinder 22 close to the second gear disk 25. The second tooth groove 26 corresponds to the second gear disk 25. A bottom side outer wall of the connecting ring 5 is fixedly connected with an electric telescopic rod 27. An end of the electric telescopic rod 27 is fixedly connected with a connecting block 28. The connecting block 28 is fixedly connected with the outer wall of the adjusting cylinder 22. Among them, the connecting ring 5 and the adjusting cylinder 22 achieve a synchronous connection function under the connection action of the electric telescopic rod 27 and the connecting block 28. The electric telescopic rod 27 can push the connecting block 28 to perform a translational motion, thereby driving the adjusting cylinder 22 to perform a translational motion. When the movement makes the second tooth groove 26 engage with the second gear disk 25, the first tooth groove 24 disengages from the first gear disk 23. By rotating the movable rod 4, the second gear disk 25 can be driven to rotate, thereby driving the second tooth groove 26 and the adjusting cylinder 22 to rotate synchronously. The rotation of the adjusting cylinder 22 drives the connecting ring 5 to rotate, thereby driving the rotating disk 6 to perform a synchronous tilting rotation, thus realizing the tilting adjustment function of the limiting frame 9, facilitating the observation of the solder joints at multiple angles of the display screen, reducing the visual blind area. At the same time, the synchronous tilting of the rotating disk 6 and the connecting ring 5 makes the bevel gear 30 not apply a separate force to the bevel gear ring 29. Therefore, the rotating disk 6 does not rotate along its own center.

[0024] As a preferred embodiment, a bevel gear ring 29 is fixedly connected to the bottom edge of the rotating disk 6. A bevel gear 30 is fixedly connected to the outer wall of one side of the movable rod 4. The bevel gear 30 meshes with the bevel gear ring 29. Among them, when the movement of the adjusting cylinder 22 makes the first tooth groove 24 engage with the first gear disk 23, the second tooth groove 26 disengages from the second gear disk 25. By engaging the first tooth groove 24 with the first gear disk 23, the connecting ring 5 and the fixed rod 3 can be fixed to each other, thereby fixing the tilting angle of the rotating disk 6. At the same time, the rotation of the movable rod 4 can drive the bevel gear 30 to rotate, thereby driving the bevel gear ring 29 and the rotating disk 6 to rotate, thus realizing the rotation of the rotating disk 6 and the limiting frame 9, facilitating the adjustment of the display screen and facilitating the fitting work. The rotating disk 6 can be deflected and horizontally rotated at the same time, rigidly locked in the fixed mode, and flexibly observed in the rotation mode, covering the observation and welding requirements of all solder joints of the display screen.

[0025] As a preferred embodiment, a driving cavity 31 is provided on one side of the base 1. One end of the movable rod 4 extends into the driving cavity 31 and is connected to the inner wall of the driving cavity 31 through a bearing. A worm gear 32 is fixedly connected to the outer wall of the movable rod 4 on one side of the driving cavity 31. A worm 33 is connected to the inner wall of one side of the driving cavity 31 through a bearing. The worm 33 meshes with the worm gear 32. An adjusting knob 34 is provided on one side of the upper surface of the base 1. The adjusting end of the adjusting knob 34 is connected to the worm 33. By rotating the adjusting knob 34, the worm 33 can be driven to rotate. The rotation of the worm 33 drives the worm gear 32 to rotate, thereby realizing the driving effect on the movable rod 4. Through the drive of the worm 33 and the worm gear 32, the self-locking effect of the movable rod 4 can be realized, avoiding the rotation of the movable rod 4 due to external force.

[0026] As a preferred embodiment, adsorption holes 40 are arranged on the surface of the limiting frame 9. An adsorption cavity 35 is arranged inside the limiting frame 9. The adsorption cavity 35 is communicated with the adsorption holes 40. One side of the adsorption cavity 35 is communicated with an air pipe 36. One end of the air pipe 36 extends outside the limiting frame 9, and the end of the air pipe 36 is communicated with an air pump 37. The air pump 37 sucks the air in the adsorption cavity 35 through the air pipe 36, forming a negative pressure at the adsorption holes 40. When the display screen is laid flat on the surface of the limiting frame 9, the negative pressure generated by the adsorption holes 40 evenly adsorbs the screen, avoiding the micro-cracks of the screen caused by mechanical clamping. The air pump 37 is equipped with a pressure sensor to monitor the vacuum degree of the adsorption cavity 35 in real time. If local air leakage occurs due to the unevenness of the screen, the air extraction rate is automatically increased for compensation.

[0027] As a preferred embodiment, a controller 38 is provided on one side of the upper surface of the base 1. A level 39 is provided on one side surface of the rotating disk 6. The controller 38 is electrically connected to the level 39 and the electric telescopic rod 27. The inclination angle is monitored in real time through the level 39 on the surface of the rotating disk 6, and the controller 38 plays a control role.

[0028] The working process of this application is as follows: First, place the display screen to be bonded in the limit frame 9 in the middle of the rotating disk 6. Start the electric push rod 12. The electric push rod 12 pushes the lateral clamping plate 10 on one side to move towards the other side. Through the guiding action of the guide rod 11, the two groups of lateral clamping plates 10 symmetrically clamp the edge of the display screen synchronously, ensuring uniform force and no deviation. Driving the gear 17 to rotate can drive the threaded barrel 16 to rotate. The threaded barrel 16 drives the threaded rod 18 to axially move. The threaded rod 18 pushes the longitudinal clamping plate 19 to move. The two groups of lateral clamping plates 10 are linked through the guide rod 11 to ensure symmetrical clamping. The longitudinal clamping plate 19 forms a proportional linkage with the lateral clamping plate 10 through the compound transmission of the driving gear 17, the rack 15, and the threaded barrel 16. The lateral clamping plate 10 and the longitudinal clamping plate 19 are synchronously clamped in a ratio of 16:9, making the four sides of the screen receive uniform force and eliminating the screen distortion caused by the asynchronous stroke of the traditional fixture. The 16:9 ratio matches the aspect ratio of the mainstream display screen, ensuring that the clamping force is concentrated on the edge of the effective area of the screen and avoiding the compression of the invalid area; The electric telescopic rod 27 can push the connecting block 28 to perform a translational motion, thereby driving the adjusting cylinder 22 to perform a translational motion. When the movement causes the second tooth groove 26 to engage with the second tooth disk 25, the first tooth groove 24 and the first tooth disk 23 are disengaged. By rotating the movable rod 4, the second tooth disk 25 can be driven to rotate, thereby driving the second tooth groove 26 and the adjusting cylinder 22 to rotate synchronously. The rotation of the adjusting cylinder 22 drives the connecting ring 5 to rotate, thereby driving the rotating disk 6 to perform a synchronous tilting rotation, thus realizing the tilting adjustment function of the limit frame 9, facilitating the observation of the solder joints at multiple angles of the display screen and reducing the visual blind area. At the same time, the synchronous tilting of the rotating disk 6 and the connecting ring 5 enables the bevel gear 30 not to apply a separate force to the bevel gear ring 29. Therefore, the rotating disk 6 will not rotate along its own center. When the adjusting cylinder 22 moves to make the first tooth groove 24 engage with the first tooth disk 23, the second tooth groove 26 and the second tooth disk 25 are disengaged. By engaging the first tooth groove 24 with the first tooth disk 23, the connecting ring 5 and the fixed rod 3 can be fixed to each other, thereby fixing the tilting angle of the rotating disk 6. At the same time, the rotation of the movable rod 4 can drive the bevel gear 30 to rotate, thereby driving the bevel gear ring 29 and the rotating disk 6 to rotate, thus realizing the rotation of the rotating disk 6 and the limit frame 9, facilitating the adjustment of the display screen and the bonding work. The rotating disk 6 can deflect and rotate horizontally at the same time. It is rigidly locked in the fixed mode and flexibly observed in the rotation mode, covering the observation and welding requirements of all solder joints of the display screen.

Claims

1. A display screen laminating fixture, comprising a base (1), characterized in that: A limiting groove (2) is provided in the middle of the upper surface of the base (1). A fixed rod (3) is fixedly connected to one inner wall of the limiting groove (2). One inner wall of the limiting groove (2) relative to the fixed rod (3) is connected to a movable rod (4) through a bearing. A connecting ring (5) is provided in the middle of the limiting groove (2). Both the fixed rod (3) and the movable rod (4) penetrate through the outer wall of the connecting ring (5) and are connected to the connecting ring (5) through bearings. The top of the connecting ring (5) is slidably connected to a rotating disc (6) through a slide rail. A supporting top frame (7) is fixedly connected to one outer wall of the upper surface of the base (1). A hot pressing welding head (8) is provided at the top of the supporting top frame (7). A limiting frame (9) is provided in the middle of the rotating disc (6). Transverse clamping plates (10) are provided on both sides of the limiting frame (9). An electric push rod (12) is fixedly connected to one inner wall of the limiting frame (9). The output end of the electric push rod (12) is connected to one of the transverse clamping plates (10).

2. The display screen laminating fixture according to claim 1, characterized in that: Guide rods (11) are provided on the opposite sides of the two groups of transverse clamping plates (10). The ends of the guide rods (11) away from the transverse clamping plates (10) penetrate through the outer wall of the limiting frame (9). Connecting cylinders (13) are fixedly connected to the outer walls of the two sides of the limiting frame (9) adjacent to the transverse clamping plates (10). Push rods (14) are fixedly connected to both ends of the opposite side surfaces of the two groups of transverse clamping plates (10). The ends of the push rods (14) away from the transverse clamping plates (10) are embedded in the connecting cylinders (13). Rack bars (15) are fixedly connected to the ends of the two groups of push rods (14). The two groups of rack bars (15) are arranged oppositely.

3. The display screen laminating fixture according to claim 2, characterized in that: A threaded cylinder (16) is connected to the center of the connecting cylinder (13) through a bearing. A driving gear (17) is fixedly connected to the outer wall of the threaded cylinder (16). The two groups of rack bars (15) are respectively arranged on both sides of the driving gear (17) and are both meshed with the driving gear (17).

4. The display screen laminating fixture according to claim 3, characterized in that: A threaded rod (18) is threadedly connected to the inner wall of the middle part of the threaded cylinder (16). The two ends of the threaded rod (18) penetrate through the outer wall of the connecting cylinder (13). One end outer wall of the threaded rod (18) close to the center of the limiting frame (9) is fixedly connected to a longitudinal clamping plate (19). A limiting cylinder (20) is provided on the outer wall of the top of the connecting cylinder (13). A limiting rod (21) is fixedly connected to the outer wall of the top of the longitudinal clamping plate (19). The limiting rod (21) penetrates through the limiting cylinder (20).

5. The display screen laminating jig according to claim 1, wherein: Adjusting cylinders (22) are sleeved on the opposite outer walls of the fixed rod (3) and the movable rod (4). The adjusting cylinders (22) are movably connected to the fixed rod (3) and the movable rod (4). A first tooth disc (23) is fixedly connected to one outer wall of the fixed rod (3). A first tooth groove (24) is provided at one end of the adjusting cylinder (22) close to the first tooth disc (23). The first tooth groove (24) corresponds to the first tooth disc (23).

6. The display screen laminating fixture according to claim 5, wherein: One side outer wall of the movable rod (4) is fixedly connected with a second gear disc (25). One end of the adjusting cylinder (22) close to the second gear disc (25) is provided with a second tooth groove (26). The second tooth groove (26) corresponds to the second gear disc (25). One side outer wall of the bottom of the connecting ring (5) is fixedly connected with an electric telescopic rod (27). The end of the electric telescopic rod (27) is fixedly connected with a connecting block (28). The connecting block (28) is fixedly connected with the outer wall of the adjusting cylinder (22).

7. A display screen laminating fixture according to claim 6, characterized in that: The bottom edge of the rotating disc (6) is fixedly connected with a bevel gear ring (29). One side outer wall of the movable rod (4) is fixedly connected with a bevel gear (30). The bevel gear (30) is meshed with the bevel gear ring (29).

8. A display screen laminating fixture according to claim 7, characterized in that: One side of the base (1) is provided with a driving cavity (31). One end of the movable rod (4) extends into the driving cavity (31) and is connected with the inner wall of the driving cavity (31) through a bearing. One side outer wall of the movable rod (4) located in the driving cavity (31) is fixedly connected with a worm gear (32). One side inner wall of the driving cavity (31) is connected with a worm (33) through a bearing. The worm (33) is meshed with the worm gear (32). One side of the upper surface of the base (1) is provided with an adjusting knob (34). The adjusting end of the adjusting knob (34) is connected with the worm (33).

9. The display screen laminating fixture according to claim 4, characterized in that: The surface of the limiting frame (9) is arranged with adsorption holes (40). An adsorption cavity (35) is arranged inside the limiting frame (9). The adsorption cavity (35) is communicated with the adsorption holes (40). One side of the adsorption cavity (35) is communicated with an air pipe (36). One end of the air pipe (36) extends outside the limiting frame (9), and the end of the air pipe (36) is communicated with an air pump (37).

10. A display screen bonding fixture according to claim 8, characterized in that: One side of the upper surface of the base (1) is provided with a controller (38). One side surface of the rotating disc (6) is provided with a level (39). The controller (38) is electrically connected with the level (39) and the electric telescopic rod (27).

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