An integrated seamless welding device for television backboard manufacturing

Abstract

The application discloses a kind of integrated seamless welding devices for television backboard manufacturing, it is related to the field related to television backboard processing, including base, position adjusting component and the semi-automatic arc welding component of position adjusting component execution end connection, the top of the base is fixed with placing rack, the adjusting mechanism is used to drive the displacement adjustment of the limiting clamp of the top of base two sides;Preheating mechanism is arranged in the limiting clamp, the output end of the preheating mechanism is connected with heat transfer mechanism, and the output end of the heat transfer mechanism is connected with negative pressure adsorption mechanism.This integrated seamless welding device for television backboard manufacturing can drive both sides of limiting clamp synchronous displacement adjustment by the cooperation of transmission driving part and adjusting mechanism, while avoiding the ectopic of backboard in welding process, greatly improving the welding yield and forming precision of television backboard, perfectly adapting the integrated seamless welding mass production demand of ultra-thin, large-screen television backboard.

Description

Technical Field

[0001] This invention relates to the technical field of television back panel processing, specifically to an integrated seamless welding device for manufacturing television back panels. Background Technology

[0002] As the core structural framework of a television, the back panel plays a crucial role in supporting the LCD panel, fixing electronic and optical components, and optimizing the product's appearance. Its manufacturing quality directly determines the structural stability, appearance integrity, and lifespan of the television. With the increasing demand from the consumer market for ultra-thin, borderless, and large-screen televisions, the integrated design of the back panel and mid-frame has become the mainstream in the industry. This solution can reduce the number of structural components in the television module, lower module material costs, simplify existing module manufacturing processes, and simultaneously achieve a thinner and simpler product form, thereby enhancing the product's market competitiveness.

[0003] Commercially available television backplate welding equipment can utilize automatic or semi-automatic electric arc welding machines, plasma arc welding machines, and other welding equipment. However, because the backplate needs to be placed vertically in a designated welding area, and this area differs from the dimensions of television backplates of different sizes, it's impossible to achieve proper positioning and matching for backplates of varying sizes. To address this issue, a television backplate design disclosed in existing technology (Chinese Patent Application No. CN202310326407.2, filed on March 30, 2023) can be referenced. The laser welding equipment and method, through a combination of limiting and adapting devices, allows the second positioning bolt to be tightened, causing the pressure plate to move up and down inside the supporting crossbeam. This adjusts the remaining gap inside the supporting crossbeam, facilitating the installation of TV back panels of different thicknesses. Simultaneously, the supporting crossbeam can slide between the two side frames to accommodate TV back panels of different lengths, ensuring the TV back panel is always pressed to the top. Furthermore, the motor can be started, driving the first gear to rotate, which in turn causes the connecting crossbar to move outwards. The mechanism facilitates the placement of the TV back panel. When the motor is off, the elasticity of the return spring causes the side frame to restrict and compress the TV back panel, thus preventing it from tilting. This allows for the installation and positioning of TV back panels of different sizes. Referring also to a prior art (Chinese patent application CN202221482611.0, filed on June 13, 2022), a TV back panel laser welding machine is used. In this machine, the XY axis sliding adjustment mechanism is first adjusted according to the size of the back panel to ensure... The four corners of the TV back panel are supported and clamped by the first front clamping mechanism, the first rear clamping mechanism, the second front clamping mechanism, and the second rear clamping mechanism to prevent the weld from shifting and becoming unusable during the welding process. After clamping the TV back panel, the first XYZ axis moving stage is adjusted to adjust the position and distance of the first laser head body, and the second XYZ axis moving stage is adjusted to adjust the position and distance of the second laser head body. The first laser head body and the second laser head body simultaneously weld the two corners at the top of the TV back panel.

[0004] Although the aforementioned device can perform positioning processing, the TV back panel is made of thin plate. When semi-automatic arc welding is used, the arc is used as a high-temperature heat source. The equipment automatically feeds the wire and relies on the high temperature of the arc to melt the base material and the welding wire to form a molten pool. After cooling, the welding is completed. The entire process is semi-automatic. During this process, the welding position is in a high-temperature state. Since the area around the TV back panel is at room temperature, the central processing area is in a high-temperature state. Although the limiting mechanism can limit the sides of the TV back panel, the generated thermal stress cannot be released, which will eventually lead to deformation or warping. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated seamless welding device for manufacturing television back panels, to solve the problem mentioned in the background art that the back panels of televisions on the market are thin plates. When semi-automatic arc welding is used, the arc is used as a high-temperature heat source. The equipment automatically feeds wire and relies on the high temperature of the arc to melt the base material and the welding wire to form a molten pool. After cooling, the welding is completed. The entire process is semi-automatic. During this process, the welding position is in a high-temperature state. Since the periphery of the television back panel is at room temperature, the central processing area is in a high-temperature state. Although the edges of the television back panel can be limited by the limiting mechanism, the generated thermal stress cannot be released, which will eventually lead to deformation or warping.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an integrated seamless welding device for manufacturing television back panels, comprising a base, a position adjustment component, and a semi-automatic arc welding component connected to the execution end of the position adjustment component. A placement frame is fixed to the top of the base, and a transmission drive component is installed on one side of the base. An adjustment mechanism is connected to the transmission end of the transmission drive component, and the adjustment mechanism is used to drive the displacement adjustment of limiting clamps on both sides of the top of the base. An edge elastic buffer mechanism is provided inside the limiting clamps to allow for slight displacement of the television back panel during welding. A negative pressure adsorption mechanism is provided on the placement frame, and the bottom of the television back panel is attached to the outside of the negative pressure adsorption mechanism. A preheating mechanism is provided inside the limiting clamps, and the output end of the preheating mechanism is connected to a heat transfer mechanism, and the output end of the heat transfer mechanism is connected to the negative pressure adsorption mechanism.

[0007] Preferably, the position adjustment assembly is composed of an X-axis adjustment section, a Y-axis adjustment section, and a Z-axis adjustment section; the X-axis adjustment section is installed on the top of the base, the working end of the X-axis adjustment section is fixed to the bottom of the Y-axis adjustment section, the working end of the Y-axis adjustment section is fixed to one side of the Z-axis adjustment section, and the working end of the Z-axis adjustment section is fixedly connected to the semi-automatic arc welding assembly; the X-axis adjustment section, Y-axis adjustment section, and Z-axis adjustment section are all composed of a servo motor, a drive screw, and a threaded connecting sleeve, and are all electrically connected to the control console.

[0008] Preferably, the transmission drive component is composed of a drive motor and a bidirectional threaded rod; the adjustment mechanism includes two sets of connecting blocks with the outer ends of the bidirectional threaded rod threaded together, a movable rod is rotatably provided on the outer side of the connecting blocks, and the other end of the movable rod is rotatably provided on the inner side of the moving plate; the inner side of the moving plate is slidably sleeved on the outer side of the guide rod, the two ends of the guide rod are fixed to the inside of the base, and a limit clamp is fixed on the top of the moving plate.

[0009] Preferably, the outer side of the limiting clamp is slidably fitted to the outer side of the upper end of the placement frame, and the limiting clamp forms a sliding structure along the length direction of the placement frame through a moving plate and a guide rod.

[0010] Preferably, the edge elastic buffer mechanism includes a fitting wedge block connected to the inner side of the limiting clamp via an elastic block, and the fitting wedge block forms an elastic sliding structure with the inner side of the limiting clamp via the elastic block.

[0011] Preferably, the outer side of the fitting wedge is inclined, and the interior of the fitting wedge is a hollow cavity; the preheating mechanism is a heat-conducting oil disposed in the hollow cavity, one end of the preheating mechanism is connected to the heat transfer mechanism, and one side of the heat transfer mechanism is connected to the negative pressure adsorption mechanism.

[0012] Preferably, the negative pressure adsorption mechanism includes a negative pressure driving part connected to one side of the movable plate. The outer end of the negative pressure driving part is connected to the negative pressure adsorption plate through an adsorption hose. The negative pressure adsorption plate is located at the bottom center of the TV back panel, and the bottom of the negative pressure adsorption plate is fixed to the top of the fixed plate.

[0013] Preferably, the top surface of the fixed plate is lower than the welding end height of the semi-automatic arc welding assembly, and the negative pressure adsorption plates are installed at equal intervals on the top of the fixed plate; the negative pressure drive unit includes a fixed piston rod fixed on one side of the moving plate, the outer end of the fixed piston rod sliding against the inside of the fixed cylinder, the end of the fixed cylinder in contact with the fixed piston rod is connected by a connecting spring, and the outer end of the fixed cylinder is connected to the adsorption hose.

[0014] Preferably, the heat transfer mechanism includes a heat spreader plate installed inside the negative pressure adsorption plate. The outer side of the upper end of the heat spreader plate is attached to the bottom of the heat-conducting mesh rib. The outer end of the heat spreader plate is connected to the oil pipeline and the elastic sealing connecting sleeve through a closed loop. The bottom of the elastic sealing connecting sleeve is fixedly connected to the outer side of the top of the attached wedge block.

[0015] Preferably, the hollow inner cavity of the heat exchange plate, oil pipe, elastic sealing connecting sleeve and fitting wedge is filled with heat-conducting oil, and the bottom outer side of the fitting wedge is attached to the edge of the TV back panel.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This integrated seamless welding device for manufacturing TV back panels, through the cooperation of the transmission drive component and the adjustment mechanism, can synchronously drive the two side limiting clamps to adjust their displacement, adapting to the clamping requirements of TV back panels of different sizes and specifications; through the edge elastic buffer mechanism inside the limiting clamp, while stably limiting the edge of the back panel, it allows the back panel to undergo slight displacement due to thermal expansion and contraction during the welding process, effectively releasing welding thermal stress; through the linkage of the preheating mechanism and the heat transfer mechanism, it achieves uniform temperature treatment between the edge of the back panel and the welding area, eliminating welding temperature differences; combined with the negative pressure adsorption mechanism for the stable adsorption of the middle of the back panel, it avoids the back panel displacement during the welding process and avoids edge warping and deformation defects caused by thermal stress concentration, greatly improving the welding yield and forming accuracy of TV back panels, perfectly adapting to the mass production requirements of integrated seamless welding for ultra-thin and large-screen TV back panels, as detailed below: 1. By coordinating the preheating mechanism, heat transfer mechanism, and edge elastic buffer mechanism, the problem of edge warping deformation during laser welding of thin-plate TV back panels is solved. The preheating mechanism built into the fitting wedge can preheat the edge of the back panel, eliminating the temperature difference between the high-temperature welding area and the edge of the back panel, and avoiding welding internal stress caused by uneven local thermal expansion and contraction. In conjunction with the heat transfer mechanism composed of the heat spreader plate, heat is evenly conducted in the back panel clamping area and the welding area, further balancing the overall temperature field of the back panel. At the same time, the fitting wedge connected by the elastic block forms an elastic buffer, allowing a small amount of thermal deformation during the back panel welding process to release internal stress without losing the limiting effect, eliminating defects such as weld misalignment and poor forming, and ensuring the forming accuracy and structural stability of seamless welding. 2. The bidirectional adjustment mechanism driven by the transmission drive component can synchronously adjust the distance between the two side limit clamps, allowing for quick adaptation to TV back panels of different sizes and specifications without step-by-step debugging, greatly simplifying the clamping process; at the same time, the displacement of the limit clamps can synchronously drive the negative pressure drive unit to move, simultaneously completing the negative pressure supply for negative pressure adsorption while the clamps are clamped and positioned, realizing synchronous linkage between clamping and adsorption fixation, eliminating the need for multiple separate drive sources, and simplifying the device structure; combined with the semi-automatic arc welding assembly with XYZ three-axis adjustment, it can accurately complete full-width seamless welding, taking into account the device's adaptability, ease of operation, and processing accuracy. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a schematic diagram of the rear view structure of the present invention; Figure 3 This is a top view of the base structure of the present invention; Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This is a bottom view of the connecting block structure of the present invention; Figure 6 This is a side view of the limiting clamp structure of the present invention; Figure 7 This is a schematic diagram of the front cross-sectional structure of the negative pressure drive unit of the present invention; Figure 8 This is a schematic diagram of the negative pressure adsorption disk structure from below in this invention; Figure 9 This is a top view of the negative pressure adsorption disk structure of the present invention.

[0018] In the diagram: 1. Base; 2. Control console; 3. X-axis adjustment unit; 4. Y-axis adjustment unit; 5. Z-axis adjustment unit; 6. Semi-automatic arc welding assembly; 7. Placement rack; 8. Transmission drive component; 9. Connecting block; 10. Movable rod; 11. Moving plate; 12. Guide rod; 13. Limiting clamp; 14. Elastic block; 15. Adhesive wedge block; 16. Negative pressure drive unit; 161. Fixed piston rod; 162. Fixed cylinder; 163. Connecting spring; 17. Adsorption hose; 18. Negative pressure adsorption plate; 19. Fixed plate; 20. Temperature equalization plate; 21. Oil supply pipe; 22. Elastic sealing connecting sleeve. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-9 The present invention provides the following technical solution: an integrated seamless welding device for manufacturing television back panels.

[0021] Example 1: To facilitate the limiting processing of the TV back panel, please refer to the attached document. Figure 1 - Appendix Figure 5The system includes a base 1, a position adjustment assembly, and a semi-automatic arc welding assembly 6 connected to the execution end of the position adjustment assembly. A placement frame 7 is fixed to the top of the base 1, and a transmission drive 8 is installed on one side of the base 1. The transmission end of the transmission drive 8 is connected to an adjustment mechanism, which is used to drive the displacement adjustment of the limiting clamps 13 on both sides of the top of the base 1. An edge elastic buffer mechanism is provided inside the limiting clamp 13 to allow slight displacement of the TV back panel during welding. A negative pressure adsorption mechanism is provided on the placement frame 7, and the bottom of the TV back panel is attached to the outside of the negative pressure adsorption mechanism. A preheating mechanism is provided inside the limiting clamp 13, and the output end of the preheating mechanism is connected to a heat transfer mechanism, which is connected to the negative pressure adsorption mechanism. The position adjustment assembly is composed of an X-axis adjustment part 3, a Y-axis adjustment part 4, and a Z-axis adjustment part 5. The X-axis adjustment part 3 is installed on the top of the base 1, and the working end of the X-axis adjustment part 3 is fixed to the bottom of the Y-axis adjustment part 4. The working end of the Y-axis adjustment part 4 is fixed to one side of the Z-axis adjustment part 5, and the working end of the Z-axis adjustment part 5 is fixedly connected to the semi-automatic arc welding assembly 6. The X-axis adjustment part 3, Y-axis adjustment part 4, and Z-axis adjustment part 5 are all composed of a servo motor, a drive screw, and a threaded connecting sleeve, and are all electrically connected to the control console 2. The transmission drive component 8 is composed of a drive motor and a bidirectional threaded rod. The adjustment mechanism includes two sets of connecting blocks 9 with threaded connections at both ends of the bidirectional threaded rod. A movable rod 10 is rotatably arranged on the outer side of the connecting block 9, and the other end of the movable rod 10 is rotatably arranged on the inner side of the moving plate 11. The inner side of the moving plate 11 is slidably sleeved on the outer side of the guide rod 12. The two ends of the guide rod 12 are fixed inside the base 1, and a limiting clamp 13 is fixed on the top of the moving plate 11. The outer side of the limiting clamp 13 is slidably fitted on the outer side of the upper end of the placement frame 7. The limiting clamp 13 forms a sliding structure along the length direction of the placement frame 7 through the moving plate 11 and the guide rod 12.

[0022] Before welding the TV back panel, the drive motor of the transmission drive component 8 is started according to the outer dimensions of the back panel to be processed. The drive motor drives the bidirectional threaded rod to rotate synchronously. Because the threads at both ends of the bidirectional threaded rod turn in opposite directions, during the rotation, the connecting blocks 9 connected by two threads move synchronously towards or away from each other along the threaded rod. When the connecting blocks 9 move, they drive the movable rod 10 to rotate and generate axial thrust, pushing the moving plate 11 to slide smoothly along the guide rod 12. Then, the moving plate 11 drives the top limiting clamp 13 to slide synchronously along the upper end of the placement frame 7, quickly adjusting the relative distance between the two limiting clamps 13 to complete the adaptation with the size of the back panel to be processed. The clamping reference of back panels of different specifications can be aligned without step-by-step debugging. After the size adaptation is completed, the TV is placed... The back panel is placed stably on the placement frame 7, so that the bottom of the back panel is in contact with the negative pressure adsorption mechanism. The two sides are initially limited and fixed by the limiting clamps 13 to ensure the consistency of the welding reference. During the welding process, the operator sends control commands through the control console 2 to drive the servo motors of the X-axis adjustment unit 3, Y-axis adjustment unit 4, and Z-axis adjustment unit 5 to operate. Through the screw drive and the screw transmission of the threaded connecting sleeve, the semi-automatic arc welding assembly 6 is driven to complete the three-axis precise displacement adjustment of horizontal, horizontal and vertical directions. This allows the welding end of the semi-automatic arc welding assembly 6 to be precisely aligned with the weld seam to be welded on the back panel, realizing the integrated seamless welding of the full-width weld seam of the TV back panel. The accuracy of the welding position and the processing efficiency are ensured by the electronic control linkage throughout the process.

[0023] Example 2: To address the issue of thin sheet metal back panels in current televisions, semi-automatic arc welding is employed. Using an electric arc as the high-temperature heat source, the equipment automatically feeds wire, and the high temperature of the arc melts the base material and welding wire to form a molten pool. After cooling, the welding is complete. This is a fully semi-automatic operation. During this process, the welding area is at a high temperature. While the perimeter of the television back panel is at room temperature, the central processing area is at a high temperature. Although a limiting mechanism can limit the sides of the television back panel, the resulting thermal stress cannot be released, ultimately leading to deformation or warping. (See attached diagram.) Figure 6 - Appendix Figure 9The edge elastic buffer mechanism includes a fitting wedge 15 connected to the inner side of the limiting clamp 13 via an elastic block 14. The fitting wedge 15 forms an elastic sliding structure with the inner side of the limiting clamp 13 via the elastic block 14. The outer side of the fitting wedge 15 is inclined, and the interior of the fitting wedge 15 is a hollow cavity. The preheating mechanism is a heat-conducting oil disposed in the hollow cavity. One end of the preheating mechanism is connected to the heat transfer mechanism, and one side of the heat transfer mechanism is connected to the negative pressure adsorption mechanism. The negative pressure adsorption mechanism includes a negative pressure driving part 16 connected to one side of the moving plate 11. The outer end of the negative pressure driving part 16 is connected to the negative pressure adsorption plate 18 via an adsorption hose 17. The negative pressure adsorption plate 18 is located at the bottom center of the TV back panel, and the bottom of the negative pressure adsorption plate 18 is fixed to the top of the fixed plate 19. The top surface of the fixed plate 19 is lower than the welding end height of the semi-automatic arc welding assembly 6. The negative pressure adsorption plates 18 are installed at equal intervals on the fixed plate 19. The top of the fixed plate 19; the negative pressure drive unit 16 includes a fixed piston rod 161 fixed to one side of the moving plate 11, the outer end of the fixed piston rod 161 is attached to the inside of the fixed cylinder 162, the end of the fixed cylinder 162 that contacts the fixed piston rod 161 is connected by a connecting spring 163, and the outer end of the fixed cylinder 162 is connected to the adsorption hose 17; the heat transfer mechanism includes a heat spreader 20 installed inside the negative pressure adsorption plate 18, the outer side of the upper end of the heat spreader 20 is attached to the bottom of the heat conduction mesh, the outer end of the heat spreader 20 is connected to the oil pipe 21 and the elastic sealing connecting sleeve 22 through a micro pump to form a closed loop, the bottom of the elastic sealing connecting sleeve 22 is fixedly connected to the outer top of the fitting wedge 15; the hollow inner cavity of the heat spreader 20, the oil pipe 21, the elastic sealing connecting sleeve 22 and the fitting wedge 15 is filled with heat conduction oil, and the outer bottom of the fitting wedge 15 is attached to the edge of the back panel of the TV.

[0024] During the process of the two limiting clamps 13 moving towards each other to clamp the TV back panel, the moving plate 11 simultaneously drives the fixed piston rod 161 fixed on its side wall to slide into the fixed cylinder 162, compressing the internal cavity volume of the fixed cylinder 162. Combined with the buffer limiting of the connecting spring 163, this creates a stable negative pressure inside the fixed cylinder 162. This negative pressure is simultaneously transmitted through the adsorption hose 17 to multiple sets of negative pressure adsorption plates 18 on the top of the fixed plate 19, causing the negative pressure adsorption plates 18 to form a uniform and stable negative pressure adsorption fixation on the central area of ​​the bottom of the TV back panel. This not only prevents the back panel from shifting during welding but also achieves clamping positioning and negative pressure adsorption. The synchronous linkage eliminates the need for a separate negative pressure drive source, simplifying the overall structure of the device. After the back panel is clamped, the fitting wedge 15, under the elastic force of the elastic block 14, has its sidewall tightly fitted to the edge of the TV back panel, completing the flexible limiting of the back panel edge. After the laser welding operation is started, the high-energy laser beam output by the semi-automatic arc welding component 6 acts on the welding area in the middle of the back panel, causing a large amount of welding heat energy to be generated instantly at the welding position, forming a local high-temperature welding zone. At this time, the heat spreader 20 installed inside the negative pressure adsorption plate 18 is tightly fitted to the bottom surface of the back panel welding area through the heat-conducting mesh ribs at the upper end, quickly absorbing the welding heat. The excess heat generated during the process causes the heat-conducting oil filled in the closed loop consisting of the heat spreader 20, oil pipe 21, elastic sealing sleeve 22, and the hollow cavity of the fitting wedge 15 to heat up rapidly. The heated heat-conducting oil forms a stable thermal convection circulation within the closed loop, continuously transferring heat from the welding area along the oil pipe 21 and elastic sealing sleeve 22 to the hollow cavity of the fitting wedge 15. Then, through the fitting wedge 15, which is tightly fitted to the edge of the back panel, the heat is evenly conducted to the side area of ​​the TV back panel, achieving synchronous and follow-up heating of the back panel side during welding, dynamically reducing the high-temperature welding area in the center of the back panel from the edge area. The real-time temperature difference continuously balances the overall temperature field of the back panel throughout the welding process, suppressing welding thermal stress caused by excessive local temperature differences. At the same time, under the high temperature of laser welding, when the back panel undergoes thermal expansion and contraction deformation, it can push the fitting wedge 15 to compress the elastic block 14 to produce a slight sliding fit. Without losing the edge limiting effect of the back panel, it allows a slight displacement of the back panel during the welding process, further releasing the residual thermal stress generated during the welding process. This doubly eliminates defects such as edge warping, welding deformation, and weld misalignment caused by the inability to release thermal stress, ensuring the forming accuracy and product yield of seamless welding of the TV back panel.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated seamless welding device for manufacturing television back panels, comprising a base (1), a position adjustment assembly, and a semi-automatic arc welding assembly (6) connected to the execution end of the position adjustment assembly, characterized in that: A placement rack (7) is fixed to the top of the base (1), and a transmission drive component (8) is installed on one side of the base (1). The transmission end of the transmission drive component (8) is connected to an adjustment mechanism, which is used to drive the displacement adjustment of the limiting clamps (13) on both sides of the top of the base (1). An edge elastic buffer mechanism is provided inside the limiting clamp (13) to allow a small displacement of the TV back panel in the welding state. A negative pressure adsorption mechanism is provided on the placement rack (7), and the bottom of the TV back panel is attached to the outside of the negative pressure adsorption mechanism. A preheating mechanism is provided inside the limiting clamp (13), and the output end of the preheating mechanism is connected to a heat transfer mechanism, and the output end of the heat transfer mechanism is connected to the negative pressure adsorption mechanism.

2. The integrated seamless welding device for manufacturing television back panels according to claim 1, characterized in that: The position adjustment assembly is composed of an X-axis adjustment part (3), a Y-axis adjustment part (4) and a Z-axis adjustment part (5); the X-axis adjustment part (3) is installed on the top of the base (1), the working end of the X-axis adjustment part (3) is fixed to the bottom of the Y-axis adjustment part (4), the working end of the Y-axis adjustment part (4) is fixed to one side of the Z-axis adjustment part (5), and the working end of the Z-axis adjustment part (5) is fixedly connected to the semi-automatic arc welding assembly (6); the X-axis adjustment part (3), the Y-axis adjustment part (4) and the Z-axis adjustment part (5) are all composed of a servo motor, a drive screw and a threaded connecting sleeve, and are all electrically connected to the control console (2).

3. The integrated seamless welding device for manufacturing television back panels according to claim 1, characterized in that: The transmission drive component (8) is composed of a drive motor and a bidirectional threaded rod; the adjustment mechanism includes two sets of connecting blocks (9) with the outer sides of the two ends of the bidirectional threaded rod connected by threads. A movable rod (10) is rotatably arranged on the outer side of the connecting block (9), and the other end of the movable rod (10) is rotatably arranged on the inner side of the moving plate (11); the inner side of the moving plate (11) is slidably sleeved on the outer side of the guide rod (12), and the two ends of the guide rod (12) are fixed inside the base (1). A limit clamp (13) is fixed on the top of the moving plate (11).

4. The integrated seamless welding device for manufacturing a television back panel according to claim 3, characterized in that: The outer side of the limiting clamp (13) is slidably fitted to the upper outer side of the placement rack (7). The limiting clamp (13) forms a sliding structure along the length of the placement rack (7) through the moving plate (11) and the guide rod (12).

5. The integrated seamless welding device for manufacturing television back panels according to claim 1, characterized in that: The edge elastic buffer mechanism includes a fitting wedge (15) connected to the inner side of the limiting clamp (13) via an elastic block (14). The fitting wedge (15) forms an elastic sliding structure with the inner side of the limiting clamp (13) via the elastic block (14).

6. The integrated seamless welding device for manufacturing a television back panel according to claim 5, characterized in that: The outer side of the fitting wedge (15) is inclined, and the interior of the fitting wedge (15) is a hollow cavity; the preheating mechanism is a heat-conducting oil set in the hollow cavity, one end of the preheating mechanism is connected to the heat transfer mechanism, and one side of the heat transfer mechanism is connected to the negative pressure adsorption mechanism.

7. The integrated seamless welding device for manufacturing television back panels according to claim 1, characterized in that: The negative pressure adsorption mechanism includes a negative pressure drive unit (16) connected to one side of the movable plate (11). The outer end of the negative pressure drive unit (16) is connected to the negative pressure adsorption plate (18) through an adsorption hose (17). The negative pressure adsorption plate (18) is located at the bottom center of the TV back panel, and the bottom of the negative pressure adsorption plate (18) is fixed to the top of the fixed plate (19).

8. The integrated seamless welding device for manufacturing a television back panel according to claim 7, characterized in that: The top surface of the fixed plate (19) is lower than the welding end height of the semi-automatic arc welding assembly (6). The negative pressure adsorption plates (18) are installed at equal intervals on the top of the fixed plate (19). The negative pressure drive unit (16) includes a fixed piston rod (161) fixed on one side of the moving plate (11). The outer end of the fixed piston rod (161) slides against the inside of the fixed cylinder (162). The end of the fixed cylinder (162) that contacts the fixed piston rod (161) is connected by a connecting spring (163). The outer end of the fixed cylinder (162) is connected to the adsorption hose (17).

9. An integrated seamless welding device for manufacturing a television back panel according to claim 6, characterized in that: The heat transfer mechanism includes a heat spreader plate (20) installed inside the negative pressure adsorption plate (18). The outer side of the upper end of the heat spreader plate (20) is attached to the bottom of the heat-conducting mesh. The outer end of the heat spreader plate (20) is connected to the oil pipe (21) and the elastic sealing connecting sleeve (22) through a micro pump to form a closed loop. The bottom of the elastic sealing connecting sleeve (22) is fixedly connected to the outer side of the top of the fitting wedge (15).

10. An integrated seamless welding device for manufacturing a television back panel according to claim 9, characterized in that: The hollow cavities of the heat exchange plate (20), oil pipe (21), elastic sealing connecting sleeve (22) and fitting wedge (15) are filled with heat-conducting oil, and the bottom outer side of the fitting wedge (15) is attached to the edge of the TV back panel.

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