Welding device for television shell production

Abstract

The invention discloses a welding device for television shell production, and particularly relates to the technical field of welding devices.The welding device comprises an operation table, a supporting assembly is fixedly connected to the middle of the upper end of the operation table, four blowing and sucking assemblies are annularly arrayed on the outer side of a fixing assembly, and welding assemblies are symmetrically arranged at the upper end of the operation table. Through cooperation of the first air bag, the second horn opening and other structures, dust and metal chippings at the upper end of the frame can be effectively blown away before welding, floating dust on the surface of a welding seam can be removed through air suction after welding is finished, air flowing can be accelerated in the air suction process, frame micro-deformation caused by heat stress release is reduced, and the welding quality is improved. Through cooperation of the first friction wheel and the second friction plate, the angle of the liquid storage box and the angle of the soft brush are adjusted in the reset process of the welding head, when the welding head is reset, an antirust agent can be evenly smeared on a welding seam, trace welding slag on the surface of the welding seam can be cleaned through the soft brush, and the problem that adhesive force is insufficient in the follow-up paint spraying or electroplating process is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding devices, in particular to a welding device for television shell production. BACKGROUND

[0002] The television shell generally refers to the external protective structure of the television, which is usually composed of a frame, a back plate, a front frame and the like, and is used for supporting the screen and internal components (such as the mainboard and power supply) and providing dustproof and impact-proof functions. The frame and the back plate are precisely connected through the welding device to ensure the structural strength and functional integration of the shell.

[0003] Chinese Patent Publication No. CN222176532U discloses a television shell welding device, which comprises a mounting base plate, a mounting frame provided in the middle top of the mounting base plate, a support frame provided on the inner wall of the mounting frame, an installation plate provided on the inner wall of the side end of the mounting groove, an electric push rod provided on the inner wall of the side end of the installation plate, a limiting plate provided on the inner wall of the side end of the limiting frame, guide grooves provided on the inner walls of the two ends of the mounting frame, a guide rod provided between the inner walls of the guide grooves, and a sliding installation plate slidably connected to the guide rod. The patent provides a television shell welding device, which can fix and position different sizes and models of shells through the limiting plate provided on the side end of the mounting groove during welding work, preventing position deviation during welding work. Moreover, the device can adjust the workpiece to the appropriate position for welding through the sliding installation plate that can automatically adjust the position during welding.

[0004] However, the above-mentioned device cannot clean the part to be welded on the upper end of the frame during the fixing of the frame. SUMMARY

[0005] The main purpose of the present application is to provide a welding device for television shell production, which can effectively solve the problem of being unable to clean the part to be welded during the fixing of the frame.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows:

[0007] A welding device for television shell production, comprising an operation table, a fixed component fixedly connected to the middle part of the upper end of the operation table, a supporting component fixedly connected to the middle part of the upper end of the operation table, four blowing and sucking components arranged in an annular array outside the fixed component, and welding components symmetrically arranged on the upper end of the operation table.

[0008] Preferably, fixed frames are symmetrically fixedly connected to the upper end of the operation table, guide grooves are fixedly connected to the upper part of one end of each of the two fixed frames, a hydraulic cylinder one is fixedly connected to the middle part of the left end of the right fixed frame, and a push plate is fixedly connected to the output end of the hydraulic cylinder one.

[0009] Preferably, the fixed component includes four fixed rollers one fixedly connected with the upper end of the operation table, and a rectangular ring fixedly connected with the four fixed rollers one.

[0010] Preferably, the support component includes a hydraulic cylinder three fixedly connected with the middle part of the lower end of the operation table, the output end of the hydraulic cylinder three extends to the upper end of the operation table, the output end of the hydraulic cylinder three is fixedly connected with a support roller, the upper end of the support roller is fixedly connected with a rectangular block, the front end, the rear end, the left end and the right end of the rectangular block are symmetrically fixedly connected with telescopic rods, two telescopic rods on the same side are rotatably connected with a round roller, the outer surface of the four round rollers is fixedly connected with L-shaped rods, and the upper end of the four L-shaped rods is fixedly connected with support blocks.

[0011] Preferably, the inner surface of the left wall, the right wall, the front wall and the rear wall of the rectangular ring is symmetrically fixedly connected with a limiting plate, and the limiting plate is provided with a limiting groove, and the inner surface of the limiting groove is slidably connected with the outer surface of the round roller.

[0012] Preferably, the blowing and sucking component includes four support rods arranged in an annular array on the outer surface of the support roller, one end of the four support rods away from the support roller is rotatably connected with a fixed roller two, the outer surface of the four fixed rollers two is fixedly connected with a push block one, the outer surface of the four fixed rollers two is symmetrically fixedly connected with a push block two, the upper end of the two push blocks two on the same side is fixedly connected with a plurality of air bags one, the outer surface of the plurality of air bags one on the same side is fixedly connected with a fixed pipe, one side of the outer surface of the fixed pipe close to the support roller is fixedly connected with a plurality of trumpet mouths one, the upper end of the four push blocks one is fixedly connected with an air bag two, the outer surface of the four air bags two is fixedly connected with a trumpet mouth two, the outer surface of the four air bags two is fixedly connected with a horizontal plate two, one end of the four horizontal plate two close to the rectangular ring is fixedly connected with a sliding block five, and the inner surface of the four sliding blocks five is slidably connected with the inner surface of the sliding groove.

[0013] Preferably, the inner surface of the plurality of sliding grooves on the same side is slidably connected with a sliding block four, the plurality of sliding blocks four on the same side is fixedly connected with a horizontal plate one, the outer surface of the plurality of air bags one is fixedly connected with the horizontal plate one, the front end, the rear end, the left end and the right end of the rectangular ring are symmetrically fixedly connected with a fixed plate, the two fixed plates on the same side are provided with a vertical groove, and the inner surface of the two vertical grooves on the same side is slidably connected with the outer surface of the fixed roller two.

[0014] Preferably, the welding assembly includes a hydraulic cylinder two fixedly connected with the fixing frame, the output end of the hydraulic cylinder two is fixedly connected with a U-shaped plate one, the upper end of the U-shaped plate one is fixedly connected with a sliding block one, the upper end of the sliding block one is slidably connected with the lower end of a guide groove, the horizontal parts of the U-shaped plate one are rotatably connected with a rotating plate on the side close to each other, the front end of the rotating plate is rotatably connected with a U-shaped plate two, the lower end of the U-shaped plate two is rotatably connected with a welding head, the upper end of the U-shaped plate two is fixedly connected with a sliding block two, the front end of the U-shaped plate two is fixedly connected with a sliding block three, the upper end of the sliding block two is slidably connected with a guide rail one, the left end of the rear side of the guide rail one is fixedly connected with a friction plate one, and the upper end of the guide rail one is fixedly connected with the fixing frame.

[0015] Preferably, the left end of the U-shaped plate two is rotatably connected with a rotating roller one, the front side of the outer surface of the rotating roller one is fixedly connected with a one-way shaft one, the outer surface of the one-way shaft one is fixedly connected with a friction wheel one, the middle part of the outer surface of the rotating roller one is fixedly connected with a liquid storage box, a plurality of soft brushes are arranged in an annular array on the side of the liquid storage box away from the rotating roller one, a plurality of circular holes are formed in the outer surface of the soft brushes, the rear side of the outer surface of the rotating roller one is drivingly connected with a rotating roller two, the upper part of the outer surface of the rotating roller two is fixedly connected with a one-way shaft two, the outer surface of the one-way shaft two is fixedly connected with a friction wheel two, and the outer surface of the friction wheel two is closely attached to one side of the friction plate one.

[0016] Preferably, the fixing frame is fixedly connected with a guide rail two, a rectangular groove is formed in the side close to the guide rail one of the guide rail two, the left end of the side close to the guide rail one of the guide rail two is fixedly connected with a friction plate two, and the inner surface of the rectangular groove is slidably connected with the sliding block three.

[0017] Compared with the prior art, the welding device has the following beneficial effects:

[0018] 1、The internal supporting frame is realized by the supporting assembly, the frame is cleaned before welding through the cooperation of the four blowing and sucking assemblies, the temperature gradient of the welding area is uniformly reduced after welding through the guiding air flow, the residual stress of the welding part is reduced, the cleaning of the welding seam and the uniform coating of the rust preventive after welding are realized through the cooperation of the two welding assemblies, and the welding part quality is further improved.

[0019] 2、The four supporting blocks cooperate to apply uniform pressure, tightly support the to-be-welded frame from inside to outside, avoid the high-frequency vibration during welding that may cause the frame to deviate, and simultaneously, the multi-point locking inside the frame can inhibit vibration transmission and reduce the risk of weld ripples or breakage caused by vibration. Similarly, through the cooperation of air bag one and air bag two, and horn opening two and horn opening one, etc., a "gas curtain barrier" can be formed by blowing air from the periphery inward before welding, which can effectively blow off dust or metal debris on the upper end of the frame, avoid impurities from mixing into the molten pool to form pores or inclusion defects, and after welding is completed, it can be switched to an air suction mode to adsorb smoke and dust around the weld, remove floating dust attached to the surface of the weld, and ensure that the subsequent detection system can clearly identify the weld appearance. Similarly, during the air suction process, air flow can also be accelerated to reduce the micro-deformation of the frame caused by the release of thermal stress.

[0020] 3、The alternating cooperation of guide rail one and guide rail two realizes the operation of the welding head with U-shaped plate two in an L-shaped track, covers the right-angle area of the joint between the frame and the back plate, avoids the corner miss-welding problem of traditional straight-line welding, and improves the continuity of the weld. Through the cooperation of the friction wheel one and the friction plate two, the angle of the liquid storage box and the soft brush is adjusted during the welding head resetting process. While the welding head is resetting, it can not only realize uniform application of the rust inhibitor to the weld, but also clean the trace of welding slag on the surface of the weld using the soft brush, avoid the problem of insufficient adhesion during subsequent paint spraying or electroplating, and simultaneously reset the liquid storage box and other structures using the friction wheel two and cooperation after the welding head is completely reset. This avoids the wear and pollution caused by the long-term contact of the soft brush with the weld, prolongs the service life of the soft brush, integrates welding and rust prevention treatment, eliminates the separate cleaning, polishing and spraying links in the traditional process, and further improves the welding efficiency and the quality of the welded parts. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0022] Figure 2 It is a schematic diagram of the local structure of the present application;

[0023] Figure 3 It is a schematic diagram of the local structure of the support assembly of the present application;

[0024] Figure 4 It is a schematic diagram of the running structure of the support assembly of the present application;

[0025] Figure 5 It is a schematic diagram of the local structure of the blowing and suction assembly of the present application;

[0026] Figure 6 It is a schematic diagram of the Figure 5 It is a schematic diagram of the enlarged structure at A in the present application;

[0027] Figure 7This is a schematic diagram of the operating structure of the blowing and sucking assembly of the present invention;

[0028] Figure 8 This is a schematic structural diagram of a welding assembly according to the present invention;

[0029] Figure 9 For the present invention Figure 8 The enlarged structural diagram at B in the middle;

[0030] Figure 10 It is a schematic diagram of the local structure of the welding assembly of the present invention;

[0031] Figure 11 This is a schematic diagram of the partial structure of the welding assembly of the present invention from another perspective.

[0032] In the figure: 1. Operating table; 11. Fixing frame; 12. Guide groove; 13. Hydraulic cylinder 1; 14. Push plate; 2. Welding assembly; 21. Hydraulic cylinder 2; 22. U-shaped plate 1; 221. Slider 1; 23. Rotating plate; 24. Guide rail 1; 241. Friction plate 1; 25. Guide rail 2; 251. Rectangular groove; 252. Friction plate 2; 26. Welding head; 27. U-shaped plate 2; 271. Slider 2; 272. Slider 3; 28. Roller 1; 281. Friction wheel 1; 282. One-way shaft 1; 29. ​​Roller 2; 291. Friction wheel 2; 292. One-way shaft 2; 210. Liquid reservoir; 211. Soft brush; 212. Circular hole; 3. Fixed assembly; 31. Fixed roller one; 32. Rectangular ring; 33. Slide; 4. Blowing and suction assembly; 41. Fixed plate; 42. Fixed roller two; 43. Push block one; 44. Push block two; 45. Airbag one; 46. Horizontal plate one; 47. Horizontal plate two; 48. Fixed tube; 49. Bell mouth one; 410. Bell mouth two; 411. Vertical groove; 412. Support rod; 413. Airbag two; 414. Slider four; 415. Slider five; 5. Support assembly; 51. Hydraulic cylinder three; 52. Support roller; 53. Limit plate; 531. Limit groove; 54. Rectangular block; 55. Telescopic rod; 56. Round roller; 57. L-shaped rod; 58. Support block. DETAILED DESCRIPTION

[0033] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0034] Example 1, as Figure 1 As shown, a welding device for producing television shells includes an operating table 1, a fixing component 3 is fixedly connected to the middle of the upper end of the operating table 1, a supporting component 5 is fixedly connected to the middle of the upper end of the operating table 1, four blowing and sucking components 4 are arranged in a circular array outside the fixing component 3, and a welding component 2 is symmetrically arranged on the upper end of the operating table 1.

[0035] In the production of television set shell process, the already welded frame and television backplate welding, through the prior art conveying device, to be welded frame conveying to the fixed assembly 3 upper end, through the support assembly 5 cooperation, frame from the inside to support and correct the position of the frame, so that the frame in with backplate welding process always in the middle position, in the support fixed frame, through four blow suction assembly 4 cooperation, frame surface to be welded part blow cleaning, avoid small particles etc. will affect the welding;

[0036] Further to be welded backplate placed on the frame directly above, alignment, using two welding assembly 2 cooperation welding, after welding, through two welding assembly 2 cooperation, weld coating anti rust agent, immediately remove the support assembly 5 on the inside of the frame locking, and cooperate with four blow suction assembly 4, guide air flow, balance welding area and the surrounding metal temperature, make the welding area temperature uniform reduction.

[0037] In the operation process of the embodiment, through the support assembly 5 to achieve the inside of the frame, through four blow suction assembly 4 cooperation, before welding on the frame cleaning, after welding through the guide air flow, make the welding area temperature gradient uniform decline, reduce the residual stress of the welding parts, at the same time through two welding assembly 2 cooperation, realize after re welding, the cleaning and uniform coating of anti rust agent on the weld, further improve the quality of the welding parts.

[0038] Example two, this embodiment is based on example one, to realize the effect of cleaning the frame on the end of the dust particles and other impurities while fixed.

[0039] Referring to Figure 2 , the fixed assembly 3 includes four fixed roller one 31 fixedly connected with the upper end of the operation table 1, the four fixed roller one 31 is fixedly connected with a rectangular ring 32, and the front end, the rear end, the left end and the right end of the rectangular ring 32 are provided with a plurality of sliding grooves 33.

[0040] Through the cooperation of the four fixed roller one 31 and the rectangular ring 32, the frame and the backplate can be supported, so as to avoid the position deviation of the frame or the backplate during welding.

[0041] Referring to Figures 3-4 , the support assembly 5 includes a hydraulic cylinder three 51 fixedly connected with the lower end of the operation table 1, the output end of the hydraulic cylinder three 51 extends to the upper end of the operation table 1 through the lower end of the operation table 1, the output end of the hydraulic cylinder three 51 is fixedly connected with a support roller 52, the upper end of the support roller 52 is fixedly connected with a rectangular block 54, the front end, the rear end, the left end and the right end of the rectangular block 54 are fixedly connected with telescopic rods 55, the same side two telescopic rods 55 are rotatably connected with a circular roller 56, the outer surface of the four circular rollers 56 is fixedly connected with an L-shaped rod 57, the upper end of the four L-shaped rods 57 is fixedly connected with a support block 58.

[0042] When the frame to be welded is conveyed forward to the upper end of the rectangular ring 32 by the conveying device in the prior art, the hydraulic cylinder three 51 is actuated, and then the output end of the hydraulic cylinder three 51 pushes the supporting roller 52 upward, which in turn drives the rectangular block 54 and the plurality of telescopic rods 55 to move upward simultaneously. During the upward movement of the two telescopic rods 55 on the same side driven by the adapted rectangular block 54, the two telescopic rods 55 drive the circular roller 56, the L-shaped rod 57 and the supporting block 58 to move upward simultaneously.

[0043] Referring to Figure 4 , the left side wall, the right side wall, the front side wall and the rear side wall of the inner surface of the rectangular ring 32 are symmetrically and fixedly connected with the limiting plates 53. The two limiting plates 53 on the same side are provided with limiting grooves 531, and the inner surfaces of the two limiting grooves 531 are slidably connected with the outer surface of the adapted circular roller 56.

[0044] Further, during the upward movement of the circular roller 56 driven by the two telescopic rods 55 on the same side, the outer surface of the circular roller 56 slides upward along the inner surface of the vertical part of the two limiting grooves 531, that is, the circular roller 56, the L-shaped rod 57 and the supporting block 58 can all move vertically upward.

[0045] Then, when the circular roller 56 moves upward to the inclined part of the inner surface of the limiting groove 531, since the two telescopic rods 55 on the same side drive the circular roller 56 to continue moving upward, the circular roller 56 drives the L-shaped rod 57 and the supporting block 58 to move upward along the inclined part of the inner surface of the limiting groove 531, while also enabling the L-shaped rod 57 and the supporting block 58 to move towards the side close to the rectangular ring 32. At this time, the supporting block 58 gradually approaches the frame to be welded, and the four supporting blocks 58 cooperate with each other to tightly support and fix the frame from the inside of the frame to be welded.

[0046] Similarly, due to the shape design of the L-shaped rod 57, when the circular roller 56 drives the L-shaped rod 57 and the supporting block 58 to move to the vertical part of the inner surface of the limiting groove 531, at this time the lower end of the supporting block 58 is higher than the upper end of the rectangular ring 32. Then, while the circular roller 56 drives the L-shaped rod 57 and the supporting block 58 to continue moving upward, it also moves towards the inner surface of the rectangular ring 32. At this time, the rectangular ring 32 does not block the movement of the supporting block 58.

[0047] Referring to Figure 4 , during the process of the four supporting blocks 58 tightly supporting the frame, they can also cooperate in pairs to correct the position of the frame to avoid the situation that the frame has a positional deviation after being conveyed to the upper end of the rectangular ring 32.

[0048] After the four supporting blocks 58 cooperate to tightly support and fix the frame, the back plate to be welded can be placed on the upper end of the frame in preparation for welding.

[0049] Referring to Figures 5-7, the blowing and sucking assembly 4 comprises four supporting rods 412 in annular array with the outer surface of the supporting roller 52, four fixed rollers two 42 are rotationally connected with the one end of the four supporting rods 412 away from the supporting roller 52, four push blocks one 43 are fixedly connected with the middle part of the outer surface of the four fixed rollers two 42, four push blocks two 44 are fixedly connected with the outer surface of the four fixed rollers two 42 in a symmetrical manner, the upper end of the two push blocks two 44 on the same side is fixedly connected with a plurality of air bags one 45, the outer surface of the plurality of air bags one 45 on the same side is fixedly connected with a fixed tube 48, the outer surface of the fixed tube 48 close to the side of the supporting roller 52 is fixedly connected with a plurality of trumpet mouths one 49, the upper end of the four push blocks one 43 is fixedly connected with air bags two 413, the upper part of the outer surface of the four air bags two 413 is fixedly connected with trumpet mouths two 410, the upper part of the outer surface of the four air bags two 413 is fixedly connected with horizontal plates two 47, the one end of the four horizontal plates two 47 close to the rectangular ring 32 is fixedly connected with sliding blocks five 415, and the inner surfaces of the four sliding blocks five 415 are respectively and slidably connected with the inner surfaces of the matched sliding grooves 33.

[0050] In the process that the output end of the hydraulic cylinder three 51 pushes the supporting roller 52 upwards, the supporting roller 52 will simultaneously drive the four supporting rods 412 to move upwards.

[0051] In the process that the supporting rods 412 are driven by the supporting roller 52 to move upwards, the supporting rods 412 will drive the fixed rollers two 42 and the push blocks one 43 and the two push blocks two 44 on the same side to move upwards simultaneously, in the process that the push blocks one 43 move upwards, the air bags two 413 will be extruded upwards, since the air bags two 413 are filled with gas inside, after the air bags two 413 are extruded, the air bags two 413 will push the horizontal plates two 47 upwards, drive the trumpet mouths two 410 and the sliding blocks five 415 to move upwards simultaneously, when the sliding blocks five 415 slide upwards along the inner surfaces of the matched sliding grooves 33 to the top wall of the inner surfaces of the sliding grooves 33, the trumpet mouths two 410 are higher than the upper end of the rectangular ring 32 and are located near the upper end of the frame to be welded, then the supporting rods 412 continue to push the fixed rollers two 42 and the push blocks one 43 upwards, at this time, the sliding grooves 33 prevent the sliding blocks five 415 and the horizontal plates two 47 from moving upwards continuously, immediately the air bags two 413 are extruded, and the gas inside the air bags two 413 is sprayed towards the upper end of the frame through the trumpet mouths two 410;

[0052] Similarly, when the fixed roller two 42 drives the two push blocks one 43 upwards, the two push blocks one 43 first push a plurality of air bags one 45 upwards, so that the horizontal plate one 46 and a plurality of sliding blocks four 414 and the fixed tube 48 and a plurality of trumpet mouths one 49 move upwards at the same time, when a plurality of sliding blocks four 414 slide upwards to tightly abut against the top wall of the inner surface of the matched sliding groove 33, at this time the fixed roller two 42 continues to push the push block two 44 upwards, then a plurality of air bags one 45 are extruded, and the gas in a plurality of air bags one 45 is sprayed from a plurality of trumpet mouths one 49 through the fixed tube 48 to the upper end of the frame to be welded, and the frame to be welded is cleaned by blowing through the cooperation of a plurality of trumpet mouths one 49 and trumpet mouths two 410, so as to avoid the influence of the residual particulate matter on the surface of the frame in the previous step on the subsequent welding.

[0053] The air bag one 45, the air bag two 413, the fixed tube 48, the trumpet mouth one 49 and the trumpet mouth two 410 are all made of materials with high temperature resistance in the prior art, so that the temperature of the air does not cause irreversible deformation during welding.

[0054] Referring to Figure 7 The inner surface of each of the plurality of sliding grooves 33 on the same side is slidably connected with a sliding block four 414, the plurality of sliding blocks four 414 on the same side are fixedly connected with the horizontal plate one 46, the horizontal plate one 46 is fixedly connected with the outer surface of the plurality of air bags one 45 matched, and the front end, the rear end, the left end and the right end of the rectangular ring 32 are all fixedly connected with the fixed plate 41, each of the two fixed plates 41 on the same side is provided with a vertical groove 411, and the inner surface of each of the two vertical grooves 411 is slidably connected with the outer surface of the fixed roller two 42 matched.

[0055] During the upward movement of the fixed roller two 42 driven by the support rod 412, the fixed roller two 42 slides upwards along the inner surface of the vertical groove 411, and the two fixed plates 41 cooperate with the vertical groove 411 to limit the fixed roller two 42, so as to avoid the position deviation of the fixed roller two 42 during the upward movement.

[0056] When the fixed roller two 42 is driven by the support rod 412 to move upwards to the top wall of the inner surface of the vertical groove 411, at this time the four supporting blocks 58 cooperate to tightly support the frame to be welded from the inside to the outside, and similarly, the plurality of trumpet mouths one 49 and trumpet mouths two 410 have cleaned the upper end of the frame to be welded by blowing, and then the television back plate is placed on the upper end of the frame, ready for welding.

[0057] After the frame and the back plate are welded, the hydraulic cylinder three 51 is excited again, so that the output end of the hydraulic cylinder three 51 drives the support roller 52 to move downwards, and then the support roller 52 drives the rectangular block 54 and the plurality of telescopic rods 55 to move downwards at the same time.

[0058] Further, when the same side telescopic rod 55 slides down, the two telescopic rods 55 will cooperate to drive the matched round roller 56 to move downward along the inner surface of the limiting groove 531, and then the L-shaped rod 57 and the supporting block 58 are driven by the round roller 56, and slide away from one side of the rectangular ring 32 while moving downward, thereby realizing the release of the four supporting blocks 58 from the bracing and locking of the inner surface of the frame.

[0059] Similarly, in the process of moving the supporting roller 52 downward driven by the output end of the hydraulic cylinder three 51, the supporting roller 52 will also drive the four supporting rods 412 to move downward at the same time, and then the supporting rod 412 drives the matched fixed roller two 42 and the push block one 43 and the push block two 44 to move downward;

[0060] Further, since the push block one 43 no longer presses the air bag two 413 upward, and the push block two 44 also no longer presses the air bag one 45, in the process of moving the push block one 43 and the two push block two 44 downward driven by the fixed roller two 42, the push block two 44 drives the air bag one 45 and the sliding block four 414 to slide downward along the inner surface of the matched sliding groove 33 through the cooperation of the air bag one 45, and at the same time drives the fixed tube 48 and the horn mouth one 49 to slide downward, when the sliding block four 414 slides downward to the bottom wall of the inner surface of the matched sliding groove 33, the fixed roller two 42 continues to drive the push block two 44 to move downward, and then stretches the air bag one 45, the internal air pressure of the air bag one 45 is reduced, and through the cooperation of the horn mouth one 49 and the fixed tube 48, the gas enters the inside of the air bag one 45 from around the rectangular ring 32.

[0061] Similarly, the push block one 43 first drives the air bag two 413 and the horizontal plate two 47, the sliding block five 415 and the horn mouth one 49 to descend in the process of descending, when the sliding block five 415 slides to the bottom wall of the inner surface of the matched sliding groove 33, the sliding block five 415 and the horizontal plate two 47 and the horn mouth two 410 no longer move downward, the push block one 43 continues to drive the lower end of the outer surface of the air bag two 413 to move downward, stretches the air bag two 413, and reduces the internal air pressure of the air bag two 413, through the cooperation of the horn mouth two 410, the air around the welded frame and the back plate enters the inside of the air bag two 413.

[0062] Therefore, this solution uses four support blocks 58 to work together to apply uniform pressure and hold the frame to be welded from the inside out to avoid the high-frequency vibration during welding that may cause the frame to shift. At the same time, multi-point locking inside the frame can suppress vibration transmission and reduce the risk of weld ripples or fractures caused by vibration. Similarly, through the cooperation of structures such as airbag 1 45 and airbag 2 413 and bell mouth 2 410 and bell mouth 1 49, it is possible to blow air inward from all sides to form an "air curtain barrier" before welding, which can effectively blow away dust or metal debris on the upper end of the frame to prevent impurities from mixing into the molten pool to form pores or inclusion defects. After welding is completed, it can switch to suction mode to absorb smoke around the weld and remove floating dust attached to the weld surface to ensure that the subsequent detection system can clearly identify the weld morphology. Similarly, during the suction process, the air flow can also be accelerated to reduce micro-deformation of the frame caused by thermal stress release.

[0063] Embodiment 3: Based on Embodiments 1 and 2, this embodiment is to achieve the effect of automatically applying rust preventive agent to the weld and cleaning the weld surface after welding is completed.

[0064] See Figure 2 The upper end of the operating table 1 is symmetrically fixed with a fixing frame 11, and the upper part of one end of the two fixing frames 11 close to each other is fixedly connected with a guide groove 12. The middle part of the left end of the right fixing frame 11 is fixedly connected with a hydraulic cylinder 13, and the output end of the hydraulic cylinder 13 is fixedly connected with a push plate 14.

[0065] The two fixing frames 11 cooperate to assist in limiting the welding assembly 2. After the frame to be welded is fixed by four support blocks 58, the back plate is placed on the upper end of the frame. Then the hydraulic cylinder 13 can be activated, and the output end of the hydraulic cylinder 13 pushes the push plate 14 downward to achieve downward pressure and fixation of the back plate, thereby avoiding the back plate from shifting during the welding process.

[0066] See Figures 8-11 The welding assembly 2 includes a hydraulic cylinder 21 fixedly connected to the fixed frame 11, the output end of the hydraulic cylinder 21 is fixedly connected to a U-shaped plate 22, the upper end of the U-shaped plate 22 is fixedly connected to a slider 221, the upper end of the slider 221 is slidably connected to the lower end of the guide groove 12, the horizontal parts of the U-shaped plate 22 are close to each other and are connected to a rotating plate 23 on one side, the front end of the rotating plate 23 is rotatably connected to the U-shaped plate 27, the lower end of the U-shaped plate 27 is rotatably connected to the welding head 26, the upper end of the U-shaped plate 27 is fixedly connected to a slider 271, the front end of the U-shaped plate 27 is fixedly connected to a slider 3 272, the upper end of the slider 271 is slidably connected to a guide rail 24, the rear side of the left end of the guide rail 24 is fixedly connected to a friction plate 241, and the upper end of the guide rail 24 is fixedly connected to the fixed frame 11.

[0067] The welding head 26 is a conventional design in the prior art, and after the welding head 26 is activated, the frame and the back plate can be welded according to the welding parameters set in advance. The operation principle of the welding head 26 will not be described in detail.

[0068] After the frame is fixed by the four supporting blocks 58 and the back plate is placed on the upper end of the frame, the back plate and the frame are compressed by the cooperation of the hydraulic cylinder one 13 and the push plate 14, and then the hydraulic cylinder two 21 and the welding head 26 can be activated. The output end of the hydraulic cylinder two 21 pushes the U-shaped plate one 22 forward, so that the U-shaped plate one 22 slides forward. In the process of sliding forward of the U-shaped plate one 22, the sliding block one 221 slides forward along the lower end of the guide groove 12. Similarly, the U-shaped plate one 22 pushes the rotating plate 23 forward to move forward.

[0069] Further, in the process of being pushed forward by the U-shaped plate one 22, the rotating plate 23 moves forward, which drives the U-shaped plate two 27 to move in the same direction. In the process of moving the U-shaped plate two 27, the welding head 26 and the sliding block two 271 move in the same direction, and at this time the welding head 26 welds between the back plate and the frame.

[0070] In the process of moving forward by the U-shaped plate two 27, the sliding block two 271 slides forward along the lower end of the guide rail one 24.

[0071] Referring to Figures 9-11 , the U-shaped plate two 27 is rotatably connected with the rotating roller one 28 at the left end, the rotating roller one 28 is fixedly connected with the one-way shaft one 282 on the front side of the outer surface, the one-way shaft one 282 is fixedly connected with the friction wheel one 281 on the outer surface, the rotating roller one 28 is fixedly connected with the liquid storage box 210 on the middle part of the outer surface, the liquid storage box 210 is arranged with a plurality of soft brushes 211 in an annular array on the side away from the rotating roller one 28, a plurality of round holes 212 are formed in the outer surface of the soft brush 211, a plurality of permeable membranes are fixedly connected in the inner surface of the round hole 212, the rotating roller two 29 is transmissionally connected with the rotating roller two 29 on the rear side of the outer surface of the rotating roller one 28, the rotating roller two 29 is fixedly connected with the one-way shaft two 292 on the upper part of the outer surface, the one-way shaft two 292 is fixedly connected with the friction wheel two 291 on the outer surface, the friction wheel two 291 is tightly attached to one side of the friction plate one 241 on the outer surface, the fixed frame 11 is fixedly connected with the guide rail two 25, the guide rail two 25 is arranged with a rectangular groove 251 on the side close to the guide rail one 24, the guide rail two 25 is fixedly connected with the friction plate two 252 on the left end of the side close to the guide rail one 24, and the inner surface of the rectangular groove 251 is slidably connected with the sliding block three 272.

[0072] The liquid storage box 210 is arranged with a liquid inlet on the upper end, and the liquid inlet is in a sealed state during the operation of the liquid storage box 210. The liquid stored in the liquid storage box 210 is a rust inhibitor. Similarly, the rust inhibitor stored in the liquid storage box 210 is enough for multiple uses.

[0073] The one-way shaft two 292 and the one-way shaft one 282 are conventional designs in the prior art. When the friction wheel two 291 is moved forward and tightly contacts the friction plate one 241, the friction wheel two 291 is driven to rotate counterclockwise, and the roller two 29 does not rotate at this time through the cooperation of the one-way shaft two 292. When the friction wheel two 291 is moved backward and tightly contacts the friction plate one 241, the friction wheel two 291 is driven to rotate clockwise, and the roller two 29 and the one-way shaft two 292 rotate in the same direction as the friction wheel two 291 at this time through the cooperation of the one-way shaft two 292.

[0074] The penetration membrane is a conventional design in the prior art. Through the setting of the penetration membrane, liquid can only flow from one side to the other side of the penetration membrane when being squeezed. The liquid storage box 210, the soft brush 211, and the inside of the liquid storage box 210 are connected.

[0075] Similarly, when the friction wheel one 281 moves left and tightly contacts the upper end of the friction plate two 252, the friction wheel one 281 rotates, and then the roller one 28 and the one-way shaft one 282 rotate in the same direction as the friction wheel one 281 through the cooperation of the one-way shaft one 282. When the one-way shaft one 282 is moved right, the roller one 28 does not rotate through the cooperation of the one-way shaft one 282.

[0076] Further, when the turning plate 23 and the U-shaped plate one 22 cooperate to push the U-shaped plate two 27 forward, the U-shaped plate two 27 drives the roller one 28, the roller two 29, and the liquid storage box 210 to move in the same direction at this time.

[0077] When the U-shaped plate two 27 drives the welding head 26 to move forward, that is, the welding of the long edge part of the frame and the back plate is completed, the upper end of the sliding block two 271 gradually separates from the lower end of the guide rail one 24 at this time, and the sliding block three 272 begins to tightly contact the inner surface of the rectangular groove 251. When the welding head 26 completes the welding of the long edge part of the frame and the back plate, the sliding block two 271 moves forward to separate from the lower end of the guide rail one 24, and the outer surface of the sliding block three 272 is tightly contacted with the inner surface of the rectangular groove 251. Similarly, the output end of the hydraulic cylinder two 21 of the U-shaped plate one 22 is pushed forward to the middle part of the lower end of the guide groove 12.

[0078] When the slider three 272 is in close contact with the inner surface of the rectangular groove 251, at this time the U-shaped plate one 22 continues to push the rotating plate 23 forward, and the rotating plate 23 is limited by the friction plate two 252 to the slider three 272, at this time the rotating plate 23 rotates counterclockwise as a whole, and the U-shaped plate two 27 is pushed to the left during the rotation of the rotating plate 23, and at the same time the slider three 272 moves left along the inner surface of the rectangular groove 251, at this time the welding head 26 is automatically rotated to the direction of the frame and the back plate by the existing technology, and at the same time the welding head 26 continues to weld the short side part of the frame and the back plate.

[0079] After the welding head 26 finishes welding the short side part of the frame and the back plate, at this time the outer surface of the friction wheel one 281 is in close contact with the right side of the upper end of the friction plate two 252, and then the rotating plate 23 continues to push the U-shaped plate two 27 to move left, and the guide rail two 25 is in close contact with the outer surface of the friction wheel one 281, during the left movement of the friction wheel one 281, the friction wheel one 281, the one-way shaft one 282 and the rotating roller one 28 are simultaneously rotated to the side close to the frame and the back plate by the cooperation of the one-way shaft one 282, and the length of the friction plate two 252 is sufficient for the rotating roller one 28 to rotate 90°, during the rotation of the rotating roller one 28, the liquid storage box 210 and the soft brush 211 are simultaneously rotated, and then the soft brushes 211 are in close contact with the welded frame and back plate.

[0080] Further, the output end of the hydraulic cylinder two 21 pulls the U-shaped plate one 22 backward, so that the U-shaped plate one 22 drives the slider one 221 to slide backward along the guide groove 12, and at the same time the U-shaped plate one 22 slides backward, the rotating plate 23 rotates clockwise as a whole, and then the rotating plate 23 pulls the U-shaped plate two 27 to the right;

[0081] During the right movement of the U-shaped plate two 27, at this time the welding head 26 stops running, and at the same time, when the friction plate two 252 is in close contact with the friction wheel one 281 again to make the friction wheel one 281 rotate, the rotating roller one 28 does not rotate at this time by the cooperation of the one-way shaft one 282, and at the same time, since the soft brushes 211 are in close contact with the welded frame and back plate, the rust inhibitor in the liquid storage box 210 is uniformly applied to the weld surface through the soft brushes 211, the circular holes 212 and the permeable membrane, and at the same time, the residual heat of the weld is used to promote the rapid film formation of the rust inhibitor, and the overall corrosion resistance of the television shell is improved.

[0082] When the U-shaped plate two 27 is driven by the turning plate 23 to slide to the right end of the guide rail two 25, the U-shaped plate one 22 continues to drive the turning plate 23 to move backward, and through the cooperation of the turning plate 23, the sliding block two 271 gradually abuts against the lower end of the guide rail one 24, and at the same time, the sliding block three 272 gradually separates from the inner surface of the rectangular groove 251, until the sliding block two 271 completely abuts against the lower end of the guide rail one 24, and then the turning plate 23 drives the U-shaped plate two 27 and the sliding block two 271 to slide along the guide rail one 24 backward, and through the cooperation of the soft brush 211 and the circular hole 212, the long edge part of the frame and the back plate is coated with rust inhibitor.

[0083] When the U-shaped plate two 27 drives the liquid storage box 210 and the soft brush 211 to move backward to the end of the long edge part of the weld coating, at this time, the outer surface of the friction wheel two 291 abuts against the friction plate one 241, and then the U-shaped plate two 27 continues to drive the turning roller two 29 and the liquid storage box 210 to move backward, and through the design of the one-way shaft two 292, the friction wheel two 291, the one-way shaft two 292 and the turning roller two 29 rotate clockwise at the same time, and then through the transmission connection of the bevel gear transmission group between the turning roller one 28 and the turning roller two 29, the turning roller one 28 rotates clockwise to reset, and in the rotating process of the turning roller one 28, the liquid storage box 210 and the soft brush 211 are reset at the same time, without affecting the next welding.

[0084] Then the four supporting blocks 58 can be removed from the fixing of the welding part, and after the material is cut, the welding is prepared again.

[0085] Therefore, through the alternating cooperation of the guide rail one 24 and the guide rail two 25, the U-shaped plate two 27 drives the welding head 26 to run in an L-shaped track, covers the right angle area of the joint between the frame and the back plate, avoids the corner missing welding problem of the traditional straight line welding, improves the continuity of the weld, adjusts the angle of the liquid storage box 210 and the soft brush 211 during the resetting of the welding head 26 through the cooperation of the friction wheel one 281 and the friction plate two 252, and at the same time of the resetting of the welding head 26, the soft brush 211 can clean the trace of welding slag on the surface of the weld, avoids the problem of insufficient adhesion in the subsequent paint spraying or electroplating, and at the same time of the complete resetting of the welding head 26, the liquid storage box 210 and other structures are reset through the cooperation of the friction wheel two 291 and the friction plate one 241, avoids the wear and pollution caused by the long-term contact of the soft brush 211 with the weld, prolongs the service life of the soft brush 211, and the welding and rust prevention treatment are integrated, so that the separate cleaning, polishing and spraying steps in the traditional process are omitted, and the welding efficiency and the welding quality are further improved.

[0086] It should be particularly pointed out that the specific installation mode of the hydraulic cylinder one 13, the hydraulic cylinder two 21 and the hydraulic cylinder three 51, the connection mode of the circuit and the control method all belong to the conventional design, and the present application will not be described in detail.

[0087] The above shows and describes the basic principles and main features of the present application and the advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A welding device for producing a television housing, comprising an operating table (1), characterized in that: A fixing assembly (3) is fixedly connected to the middle of the upper end of the operating table (1), a supporting assembly (5) is fixedly connected to the middle of the upper end of the operating table (1), four blowing and suction assemblies (4) are arranged in a circular array outside the fixing assembly (3), and a welding assembly (2) is symmetrically arranged on the upper end of the operating table (1).

2. A welding device for producing a television housing according to claim 1, characterized in that: The upper end of the operating table (1) is symmetrically fixedly connected to a fixing frame (11), and the upper part of one end of the two fixing frames (11) close to each other is fixedly connected to a guide groove (12), and the middle part of the left end of the fixing frame (11) on the right side is fixedly connected to a hydraulic cylinder (13), and the output end of the hydraulic cylinder (13) is fixedly connected to a push plate (14).

3. A welding device for producing a television housing according to claim 1, characterized in that: The fixing assembly (3) comprises four fixing rollers (31) fixedly connected to the upper end of the operating table (1), the four fixing rollers (31) being fixedly connected to a rectangular ring (32) in common, and a plurality of slide grooves (33) are provided at the front end, rear end, left end and right end of the rectangular ring (32).

4. A welding device for producing a television housing according to claim 3, characterized in that: The support assembly (5) includes a hydraulic cylinder three (51) fixedly connected to the middle of the lower end of the operating table (1), the outer surface of the output end of the hydraulic cylinder three (51) passes through the lower end of the operating table (1) and extends to the upper end of the operating table (1), the output end of the hydraulic cylinder three (51) is fixedly connected to a support roller (52), the upper end of the support roller (52) is fixedly connected to a rectangular block (54), the front end, rear end, left end and right end of the rectangular block (54) are symmetrically fixedly connected to telescopic rods (55), the two telescopic rods (55) on the same side are connected to a round roller (56) for common rotation, the middle part of the outer surface of the four round rollers (56) are fixedly connected to an L-shaped rod (57), and the upper ends of the four L-shaped rods (57) are fixedly connected to a support block (58).

5. A welding device for producing a television housing according to claim 4, characterized in that: The left side wall, right side wall, front side wall and rear side wall of the inner surface of the rectangular ring (32) are all symmetrically fixedly connected to the limiting plates (53), and the two limiting plates (53) on the same side are each provided with a limiting groove (531), and the inner surfaces of the two limiting grooves (531) on the same side are slidably connected to the outer surface of the matching round roller (56).

6. A welding device for producing a television housing according to claim 4, characterized in that: The blowing and sucking assembly (4) includes four support rods (412) in a circular array on the outer surface of the support roller (52), the ends of the four support rods (412) away from the support roller (52) are rotatably connected to the fixed roller 2 (42), the middle parts of the outer surfaces of the four fixed rollers 2 (42) are fixedly connected to the push blocks 1 (43), the outer surfaces of the four fixed rollers 2 (42) are symmetrically fixedly connected to the push blocks 2 (44), the upper ends of the two push blocks 2 (44) on the same side are fixedly connected to a plurality of air bags 1 (45), and the upper parts of the outer surfaces of the plurality of air bags 1 (45) on the same side are fixedly connected to a fixed tube (48). The outer surface of the fixed tube (48) is fixedly connected to a plurality of bell mouths (49) on one side close to the support roller (52), the upper ends of the four push blocks (43) are fixedly connected to airbags (413), the upper parts of the outer surfaces of the four airbags (413) are fixedly connected to bell mouths (410), the upper parts of the outer surfaces of the four airbags (413) are fixedly connected to horizontal plates (47), the ends of the four horizontal plates (47) close to the rectangular ring (32) are fixedly connected to sliders (415), and the inner surfaces of the four sliders (415) are respectively slidably connected to the inner surfaces of the matching slide grooves (33).

7. A welding device for producing a television housing according to claim 6, characterized in that: The inner surfaces of several slide grooves (33) on the same side are all slidably connected to sliders four (414), and several sliders four (414) on the same side are commonly fixedly connected to a transverse plate one (46). The transverse plate one (46) is fixedly connected to the outer surfaces of several matching airbags one (45). The front end, rear end, left end and right end of the rectangular ring (32) are symmetrically fixedly connected to fixed plates (41). The two fixing plates (41) on the same side are each provided with a vertical groove (411), and the inner surfaces of the two vertical grooves (411) on the same side are commonly slidably connected to the outer surface of the matching fixed roller two (42).

8. A welding device for producing a television housing according to claim 2, characterized in that: The welding assembly (2) includes a hydraulic cylinder 2 (21) fixedly connected to a fixed frame (11), an output end of the hydraulic cylinder 2 (21) is fixedly connected to a U-shaped plate 1 (22), an upper end of the U-shaped plate 1 (22) is fixedly connected to a slider 1 (221), an upper end of the slider 1 (221) is slidably connected to a lower end of the guide groove (12), and horizontal portions of the U-shaped plate 1 (22) are mutually close to one side and are rotatably connected to a rotating plate (23), and a front end of the rotating plate (23) is rotatably connected to the rotating plate There is a U-shaped plate 2 (27), the lower end of the U-shaped plate 2 (27) is rotatably connected to a welding head (26), the upper end of the U-shaped plate 2 (27) is fixedly connected to a slider 2 (271), the front end of the U-shaped plate 2 (27) is fixedly connected to a slider 3 (272), the upper end of the slider 2 (271) is slidably connected to a guide rail 1 (24), the rear side of the left end of the guide rail 1 (24) is fixedly connected to a friction plate 1 (241), and the upper end of the guide rail 1 (24) is fixedly connected to the fixed frame (11).

9. A welding device for producing a television housing according to claim 8, characterized in that: The left end of the U-shaped plate 2 (27) is rotatably connected to a roller 1 (28), the front side of the outer surface of the roller 1 (28) is fixedly connected to a one-way rotating shaft 1 (282), the outer surface of the one-way rotating shaft 1 (282) is fixedly connected to a friction wheel 1 (281), the middle part of the outer surface of the roller 1 (28) is fixedly connected to a liquid storage box (210), a side of the liquid storage box (210) away from the roller 1 (28) is provided with a plurality of soft brushes (211) in a circular array, the outer surfaces of the soft brushes (211) are each provided with a plurality of circular holes (212), the rear side of the outer surface of the roller 1 (28) is transmission-connected to a roller 2 (29), the upper part of the outer surface of the roller 2 (29) is fixedly connected to a one-way rotating shaft 2 (292), the outer surface of the one-way rotating shaft 2 (292) is fixedly connected to a friction wheel 2 (291), and the outer surface of the friction wheel 2 (291) is in close contact with one side of the friction plate 1 (241).

10. A welding device for producing a television housing according to claim 8, characterized in that: The fixing frame (11) is fixedly connected to the second guide rail (25), and a rectangular groove (251) is provided on the side of the second guide rail (25) close to the first guide rail (24). The left end of the side of the second guide rail (25) close to the first guide rail (24) is fixedly connected to the second friction plate (252), and the inner surface of the rectangular groove (251) can be slidably connected to the third slider (272).

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