CN117983959A - Television backboard laser welding device - Google Patents
Television backboard laser welding device Download PDFInfo
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- CN117983959A CN117983959A CN202410284805.7A CN202410284805A CN117983959A CN 117983959 A CN117983959 A CN 117983959A CN 202410284805 A CN202410284805 A CN 202410284805A CN 117983959 A CN117983959 A CN 117983959A
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- television
- welding
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- 238000003466 welding Methods 0.000 title claims abstract description 151
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 97
- 230000007246 mechanism Effects 0.000 claims abstract description 87
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 41
- 238000011084 recovery Methods 0.000 claims abstract description 41
- 239000002184 metal Substances 0.000 claims abstract description 27
- 239000007921 spray Substances 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims description 27
- 238000001125 extrusion Methods 0.000 claims description 18
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 241000883990 Flabellum Species 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 15
- 238000000034 method Methods 0.000 description 12
- 239000000779 smoke Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000289 melt material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Landscapes
- Laser Beam Processing (AREA)
Abstract
The invention discloses a television backboard laser welding device, which relates to the field of welding equipment and comprises a base, wherein two groups of first guide rails are arranged at the top end of the base, transverse frames are symmetrically arranged above the first guide rails, a first bearing table and a second bearing table are arranged at the top end of each group of transverse frames, a television backboard is arranged above the first bearing table and the second bearing table in a clamping manner, a moving mechanism is arranged at the top end of the second bearing table, two groups of first clamping cylinders are arranged at the outer side of a supporting plate, two groups of second clamping cylinders which are vertically arranged are arranged at the top end of the supporting plate, and a laser welding mechanism is arranged in the moving mechanism. According to the invention, during welding, the recovered nitrogen is sent to the inner side of the television backboard through the metal pipe, so that the nitrogen is sprayed out through the rotary spray head, and the rotary spray head is aligned with the back surface of the corner welding point, so that the sprayed nitrogen protects the back surface of the welding point, oxidation of the back surface of the welding point is reduced, and the nitrogen recovery effect is improved.
Description
Technical Field
The invention relates to the field of welding equipment, in particular to a television backboard laser welding device.
Background
The television is an active matrix liquid crystal display driven by a thin film transistor, and mainly comprises a liquid crystal panel, a backlight module and a backboard, wherein the liquid crystal panel, the backlight module and the backboard are matched with back lamps to form a picture by current to stimulate liquid crystal molecules, the television backboard belongs to a protective shell of the back of the television, the television backboard has the effect of protecting internal parts of the television from external force and dust, when the television backboard is processed, the front end of the television backboard is required to be punched, a plurality of punching machines are usually adopted for punching, then a spliced part of the television backboard is welded (generally, the corner position) at present, the split welding and the split welding under the line are carried out on the production of a frameless television, the welding and the punching beats are synchronous, the welding is carried out immediately after the punching is finished, and then the grinding is carried out, and the existing welding mode usually adopts a laser welding mode.
The prior welding mode usually adopts a mechanical welding mode, after the stamping of the television backboard is finished, the television backboard is limited by a limiting tool, then a laser welding head is aligned with the corner position for welding, in the laser welding process, a high-energy heat source of laser can quickly melt materials to form a molten pool keyhole, metal in a molten state is very active and is extremely easy to generate oxidation reaction with oxygen in the atmosphere, a large amount of splashes, air holes and welding slag are visually and widely seen, therefore, the molten pool and the oxygen are required to be isolated by protective gas, the protective gas gushes out to form a flowing inert gas environment around the molten pool, the molten metal and the oxygen are directly contacted, but because the thickness of the conventional television backboard is usually thinner, the welding is easy to penetrate into the inner side of the television backboard in the welding process, the inner side of the welding point is oxidized, the nitrogen is only welded at the position of laser welding (namely, the outer side of the television backboard is welded), so that the inner side of the television backboard is required to be protected in the welding process, an additional nitrogen spray head is usually arranged in the television backboard to be connected with an external nitrogen source in the prior art, the method is complex in structure, the installation of the television backboard is hindered, the temperature of the inner side of the television backboard is not consistent with the temperature of the outer side of the television backboard in the welding process, high-strength nitrogen flow is not required to impact, only one nitrogen spray head is simply added, the width of the corner of the television backboard is very wasted, the welding time is usually between two seconds and three seconds, the welded television backboard is required to be moved after the welding is finished, and the nitrogen remained in a welding frame is scattered in the air in the replacement process, resulting in a waste of nitrogen.
Disclosure of Invention
Based on the above, the invention aims to provide a television backboard laser welding device so as to solve the technical problems that the protection gas is inconvenient to protect the corner position and nitrogen is easy to waste.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a TV backplate laser welding device, includes the base, two sets of first guide rails are installed on the top of base, and the crossbearer is installed to the top symmetry of first guide rail, and first plummer and second plummer are all installed on the top of every group crossbearer, TV backplate is installed to the top block of first plummer and second plummer, moving mechanism is installed on the top of second plummer, two sets of first clamp cylinder are installed in the outside of backup pad, two sets of second clamp cylinders that set up perpendicularly are installed on the top of backup pad, and moving mechanism's internally mounted has laser welding mechanism, the connecting plate is installed on laser welding mechanism's top, laser welding mechanism carries out fixed mounting through the connecting plate, laser welding mechanism's side is connected with the air inlet, the air inlet is put through with external nitrogen source, laser welding mechanism's output is the laser bonding tool, recovery mechanism is installed in the output outside of laser welding mechanism, and nitrogen gas when retrieving mechanism's the welding can retrieve, and the bottom of recovery mechanism is connected with the metal pipe, the metal pipe bending extends to the TV backplate from the inboard below, and the metal pipe is connected with two sets of clamp cylinders and is connected with the relative angle, and is used for setting up the relative shower nozzle to the TV backplate, and the shower nozzle is connected with two sets of opposite, and is used for setting up the opposite to the shower nozzle to the end, and is welded to the opposite to the shower nozzle.
Through adopting above-mentioned technical scheme, both sides to the TV backplate that can be convenient all protect, reduce the oxidation of welding position in the welding process, and during the welding, can be through the nitrogen gas of retrieving to and nitrogen gas extrusion makes nitrogen gas enter into in the TV backplate before the welding, protects the back of welding point, has improved the protection effect, and has reduced the waste of nitrogen gas.
The invention is further arranged that the top end of the second bearing table is positioned at the output end of the laser welding mechanism, the supporting plate is arranged, the two groups of first clamping cylinders are vertically arranged, the output ends of the first clamping cylinders are connected with limiting baffles aligned with the edges of the supporting plate, the output ends of the groups of second clamping cylinders are aligned with one group of limiting baffles, the output ends of the second clamping cylinders are provided with positioning plates, and the positioning plates and the limiting baffles clamp and limit the television backboard.
Through adopting above-mentioned technical scheme, can conveniently carry out spacing fixed to the TV backplate, reduce the extrusion damage to the TV backplate.
The invention is further arranged that the opening of the air bag is aligned with the corner position of the television backboard, a spring rod is arranged in the air bag, two ends of the spring rod are fixedly connected with the staggered push rods and the inner wall of the positioning plate respectively, the output ends of the two groups of second clamping cylinders are staggered push rods, the two groups of staggered push rods are arranged up and down in a staggered manner, the end part of the extrusion plate is provided with a mounting notch, and the staggered push rods are fixedly connected with the extrusion plate through the mounting notch.
Through adopting above-mentioned technical scheme, can make two sets of second clamp cylinder crisscross settings, reduce area occupied, make things convenient for the TV backplate installation.
The invention is further arranged that a movable air cylinder is arranged at the top end of the second bearing table, a positioning table is arranged at the output end of the movable air cylinder, a fine-tuning movable seat is arranged on one side of the positioning table, the fine-tuning movable seat comprises a horizontal motor and a vertical motor, the vertical motor is arranged on the outer side of an output shaft of the horizontal motor, the output end of the vertical motor is connected with a mounting seat, and a laser welding mechanism is fixed below the mounting seat.
Through adopting above-mentioned technical scheme, can conveniently drive laser welding mechanism and remove to weld the TV backplate of different specifications.
The invention is further arranged that the side surface of the positioning table is connected with the mounting frame, the outer side of the mounting frame is provided with the absorption lamp, and the absorption lamp is aligned with the output end of the laser welding mechanism.
By adopting the technical scheme, the laser reflection generated at the welding part can be absorbed conveniently.
The invention is further characterized in that a recovery baffle plate is arranged above the output end of the laser welding mechanism, a suction nozzle arranged above the output end of the laser welding mechanism is arranged at the top end of the recovery mechanism, the suction nozzle is arranged at the top end of the recovery baffle plate, a filter screen is arranged in the recovery baffle plate, a motor is arranged below the laser welding mechanism, the output end of the motor is connected with a fan blade, a sealing element is arranged outside the fan blade, a suction groove is arranged in the recovery baffle plate, and the fan blade is communicated with the suction nozzle through the suction groove.
Through adopting above-mentioned technical scheme, the flue gas and the nitrogen gas that produce when convenient butt welding are retrieved to filter the nitrogen gas of retrieving through the filter screen.
The invention is further characterized in that a rotary sealing plate is arranged below the fan blade, a limiting groove is arranged on the outer side of the rotary sealing plate, the rotary sealing plate is rotationally connected with the sealing piece through the limiting groove, a reinforcing plate is arranged inside the rotary sealing plate, the metal pipe is fixedly connected with the rotary sealing plate, a through hole is formed in the rotary sealing plate, and the metal pipe is communicated with the fan blade through the through hole.
Through adopting above-mentioned technical scheme, the nitrogen gas of convenient recovery enters into in the tubular metal resonator, finally sends the nitrogen gas to the TV backplate inside.
The invention is further characterized in that two groups of second guide rails are arranged at the top end of the transverse frame, the first bearing table and the second bearing table move on the transverse frame through the second guide rails, a limiting clamping plate is arranged on the side surface of the transverse frame, and the limiting clamping plate limits the movement of the second bearing table.
By adopting the technical scheme, the second bearing table is convenient to move.
The invention is further arranged that the top end of the first bearing table is provided with a fixed table, two ends of the fixed table are provided with inclined panels, and the two groups of inclined panels are vertically arranged at the corners of the television backboard in alignment.
Through adopting above-mentioned technical scheme, in the TV backplate installation, can carry out spacingly to the TV backplate through the fixed station to make the TV backplate can enter into the plummer above through the inclined plane board, reduce wearing and tearing.
In summary, the invention has the following advantages:
according to the invention, the second bearing table and the second clamping air cylinder are arranged, so that when the television backboard is limited, the limiting baffle plate can be pushed by the first clamping air cylinder to be fixed on the outer side of the television backboard, then the extruding plate, the air bag and the positioning plate are pushed by the second clamping air cylinder to move and be attached to the inner wall of the television backboard, the limiting fixation is carried out from the inside of the television backboard, the limiting baffle plate is aligned with the positioning plate, the two ends of the television backboard are not required to be clamped, the clamping effect is improved, and the extrusion of the television backboard is reduced.
According to the invention, through the laser welding mechanism and the recovery mechanism, the corners of the television backboard can be welded, the recovery mechanism is driven to synchronously move through the laser welding mechanism, the suction nozzle is arranged at the top end of the laser welding head by the recovery mechanism, the smoke and nitrogen generated during welding are sucked into the recovery mechanism through the motor and the fan blades in the recovery mechanism, the smoke is recovered through the filter screen, the smoke pollution environment in the welding process is reduced, and the nitrogen can be recovered.
According to the invention, the recycling mechanism and the metal tube are arranged, so that recycled nitrogen can be sent to the inner side of the television backboard through the metal tube during welding, the nitrogen is sprayed out through the rotary spray head, and the rotary spray head is aligned with the back of the corner welding point, so that the back of the welding point is protected through the sprayed nitrogen, oxidation of the back of the welding point is reduced, and the recycling effect of the nitrogen is improved.
According to the invention, part of nitrogen remained in the television backboard can be sucked in during the return process of the air bag, the sucked nitrogen is sprayed out in advance when other television backboard is fixed next time, and the air bag opening is aligned with the welding part of the television backboard, so that the nitrogen can be distributed in advance on the inner side of the television backboard before welding, the situation that the nitrogen cannot quickly reach the inner side of the television backboard when welding is just started is avoided, the protection effect is improved, the waste of the nitrogen is reduced, and the use efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a partial enlarged structure of the present invention at A in FIG. 1;
FIG. 3 is a schematic view of a television back plate of the present invention mounted on a soldering apparatus;
FIG. 4 is a schematic diagram of a moving mechanism according to the present invention;
FIG. 5 is a schematic view of a first stage according to the present invention;
FIG. 6 is a schematic view of a second stage according to the present invention;
FIG. 7 is a schematic view of a laser welding mechanism according to the present invention;
FIG. 8 is a schematic view of the recovery mechanism of the present invention;
FIG. 9 is a schematic cross-sectional view of the recovery mechanism of the present invention;
FIG. 10 is a schematic view of the structure of the air tank in the recovery mechanism of the present invention;
FIG. 11 is a schematic view of the connection of the rotary seal plate to the metal tube according to the present invention;
FIG. 12 is a schematic view of a second clamping cylinder of the present invention;
FIG. 13 is a schematic view of the squeeze plate and positioning plate of the present invention.
In the figure: 1. a base; 2. a first guide rail; 201. a cross frame; 202. a second guide rail; 203. a limiting clamping plate; 3. a first loading table; 301. a fixed table; 4. a second bearing table; 401. a moving cylinder; 402. a positioning table; 4021. a mounting frame; 403. fine tuning the movable seat; 404. a support table; 405. a first clamping cylinder; 406. a support plate; 407. an absorption lamp; 408. a limit baffle; 5. a television back plate; 6. a laser welding mechanism; 601. an air inlet; 602. a connecting plate; 603. a laser welding head; 7. a recovery mechanism; 701. a recovery baffle; 702. a suction nozzle; 703. a motor; 704. rotating the sealing plate; 7041. a limit groove; 7042. a reinforcing plate; 7043. a connection port; 705. a fan blade; 706. a filter screen; 707. an air suction groove; 8. a metal tube; 801. rotating the spray head; 9. a second clamping cylinder; 901. staggering the push rods; 902. an extrusion plate; 903. an air bag; 904. a positioning plate; 905. a spring rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
Hereinafter, an embodiment of the present invention will be described in accordance with its entire structure.
The utility model provides a TV backplate laser welding device, as shown in fig. 1 through 11, including base 1, two sets of first guide rails 2 are installed on the top of base 1, the crossbearer 201 is installed to the top symmetry of first guide rail 2, first plummer 3 and second plummer 4 are all installed on the top of every group crossbearer 201, two sets of second guide rails 202 are installed on the top of crossbearer 201, first plummer 3 and second plummer 4 all move on crossbearer 201 through second guide rail 202, spacing cardboard 203 has been seted up to the side of second guide rail 202 in crossbearer 201, spacing cardboard 203 is spacing the removal of second plummer 4, TV backplate 5 is installed to the top block of first plummer 3 and second plummer 4, can conveniently adjust the interval between each group plummer, thereby the TV backplate 5 of different specifications is spacing to the convenience.
The top of second plummer 4 has seted up and has moved cylinder 401, and the locating platform 402 is installed to the end of removing cylinder 401, fine setting removes seat 403 is installed to one side of locating platform 402, fine setting removes seat 403 includes horizontal motor, vertical motor, the output outside at horizontal motor is installed to the vertical motor, the output of vertical motor is connected with the mount pad, laser welding mechanism 6 is fixed in the mount pad below, connecting plate 602 is installed at the top of laser welding mechanism 6, laser welding mechanism 6 passes through connecting plate 602 and mount pad fixed connection, the side of laser welding mechanism 6 is connected with air inlet 601, air inlet 601 is put through with external nitrogen source, the output of laser welding mechanism 6 is laser bonding head 603.
The top end of the second bearing table 4 is provided with a supporting plate 406 at the output end of the laser welding mechanism 6, two groups of supporting tables 404 are arranged at the outer side of the supporting plate 406, two groups of first clamping air cylinders 405 are arranged on the supporting table 404, the two groups of first clamping air cylinders 405 are vertically arranged, the output end of the first clamping air cylinders 405 is connected with a limit baffle 408 aligned with the edge of the supporting plate 406, the top end of the supporting plate 406 is provided with two groups of vertically arranged second clamping air cylinders 9, the output end of each group of second clamping air cylinders 9 is aligned with one group of limit baffle 408, the output end of each group of second clamping air cylinders 9 is provided with a squeeze plate 902, an air bag 903 is arranged between the squeeze plate 902 and the positioning plate 904, the opening of the air bag 903 is aligned with the corner position of the television backboard 5, a spring rod 905 is arranged in the air bag 903, the two ends of the spring rod 905 are fixedly connected with the inner walls of the staggered push rods 901 and the positioning plate 904 respectively, when the television backboard 5 is transported to each group of bearing tables, the first clamping cylinder 405 is started to push the positioning block to be attached to the outer side of the television backboard 5, the preliminary installation of the television backboard 5 is realized, the two groups of second clamping cylinders 9 are started, the output ends of the second clamping cylinders 9 push the extrusion plate 902 to move, thereby driving the positioning plate 904 to move to be attached to the inner wall of the television backboard 5, then the second clamping cylinders 9 are continuously started, the extrusion plate 902 extrudes the air bag 903 and the spring rod 905, the air bag 903 is contracted, the extrusion force is transmitted to the positioning plate 904 through the spring rod 905, the television backboard 5 is limited and clamped through the positioning plate 904, the fixing of the television backboard 5 is completed, the laser welding mechanism 6 is started, the laser welds the corner positions of the television backboard 5 through the laser welding head 603, and simultaneously, sufficient nitrogen is injected into the laser welding head 603 through the air inlet 601, the nitrogen and the laser are coaxially discharged, the liquid crystal motor backboard is welded and protected, the laser welding mechanism 6 is driven to move up and down by the fine adjustment moving seat 403, and the television backboard 5 is welded.
The recovery mechanism 7 is arranged outside the output end of the laser welding mechanism 6, a suction nozzle 702 positioned above the output end of the laser welding mechanism 6 is arranged at the top end of the recovery mechanism 7, a fan blade 705 is arranged in the recovery mechanism 7, a connecting port 7043 is arranged at the bottom end of the recovery mechanism 7, a metal pipe 8 is sleeved outside the connecting port 7043, the metal pipe 8 is bent and extends to the inner side of the television backboard 5 from the lower side, a rotary spray nozzle 801 is connected with the end part of the metal pipe 8, the rotary spray nozzle 801 is aligned with the output end of the laser welding mechanism 6 relative to the corner of the television backboard 5, a recovery baffle 701 is arranged above the output end of the laser welding mechanism 6 of the recovery mechanism 7, the suction nozzle 702 is arranged at the top end of the recovery baffle 701, a filter screen 706 is arranged in the recovery baffle 701, a motor 703 is arranged below the laser welding mechanism 7, the output end of the motor 703 is connected with the fan blade 705, the sealing element is arranged on the outer side of the fan blade 705, the air suction groove 707 is arranged in the recovery baffle 701, the fan blade 705 is communicated with the suction nozzle 702 through the air suction groove 707, the rotary sealing plate 704 is arranged below the fan blade 705, the limiting groove 7041 is arranged on the outer side of the rotary sealing plate 704, the rotary sealing plate 704 is rotationally connected with the sealing element through the limiting groove 7041, the reinforcing plate 7042 is arranged in the rotary sealing plate 704, the metal pipe 8 is fixedly connected with the rotary sealing plate 704, the rotary sealing plate 704 is provided with a through hole, the metal pipe 8 is communicated with the fan blade 705 through the through hole, smoke is generated at a welding position in the welding process, at the moment, the motor 703 below the recovery mechanism 7 is started, the output end of the motor 703 drives the fan blade 705 to rotate, the fan blade 705 sucks air through the suction nozzle 702, the suction nozzle 702 is positioned right above the welding position and synchronously moves along with the laser welding head 603, so that the smoke generated during welding can be absorbed, simultaneously, the discharged nitrogen is synchronously absorbed, the flue gas is collected through the filter screen 706, the residual nitrogen is sprayed to the back of the welding part through the rotating spray nozzle 801 at the top end of the metal pipe 8, the rotating spray nozzle 801 is aligned with the laser welding head 603, the sprayed air flow is opposite to the back of the welding point, and the welding part is protected through the residual nitrogen.
Referring to fig. 12, the output ends of the two groups of second clamping cylinders 9 are staggered push rods 901, the two groups of staggered push rods 901 are arranged up and down in a staggered manner, the end parts of the extrusion plates 902 are provided with mounting slots, the staggered push rods 901 are fixedly connected with the extrusion plates 902 through the mounting slots, and the two groups of extrusion plates 902 are aligned with the supporting plates 406 conveniently.
Referring to fig. 6, a mounting frame 4021 is connected to a side of the positioning table 402, and an absorption lamp 407 is mounted on an outer side of the mounting frame 4021, and the absorption lamp 407 is aligned with an output end of the laser welding mechanism 6.
Referring to fig. 5, a fixing table 301 is provided at the top end of the first carrying table 3, two inclined panels are provided at two ends of the fixing table 301, and two sets of inclined panels are vertically disposed at the corners of the television backboard 5 to align, so as to conveniently limit the television backboard 5.
After the laser welding device is arranged on television backboard stamping equipment, the television backboard 5 to be processed is moved into the laser welding device through a sucker transfer mechanism, before welding, the positions of all groups of bearing tables are adjusted according to the shape of the television backboard 5 (the object table is adjusted through structures such as a first guide rail 2, a transverse frame 201, a second guide rail 202 and the like), a movable cylinder 401 is started to drive a laser welding mechanism 6 to move to a proper position, and the laser welding mechanism 6 is connected with an external power supply and nitrogen equipment;
When welding, firstly, the television backboard 5 is moved to the position right above the base 1 through the sucker transfer mechanism, so that four corners of the television backboard 5 are aligned with each group of bearing tables, then the television backboard 5 is placed on each group of bearing tables through the transfer mechanism, the first clamping cylinder 405 is started to push the positioning block to be attached to the outer side of the television backboard 5, preliminary installation of the television backboard 5 is realized, the two groups of second clamping cylinders 9 are started, the output end of the second clamping cylinder 9 pushes the extrusion plate 902 to move, so that the positioning plate 904 is driven to move to be attached to the inner wall of the television backboard 5, then the second clamping cylinder 9 is continuously started, the extrusion plate 902 extrudes the air bag 903 and the spring rod 905, so that the air bag 903 is contracted, the extrusion force is transmitted to the positioning plate 904 through the spring rod 905, the television backboard 5 is limited and clamped through the positioning plate 904, the television backboard 5 is fixed, the television backboard 5 is not limited through the clamping device on the other side, and a sealing space is formed between the television backboard 5 and the bearing tables in the clamping process;
then welding is carried out, a laser welding mechanism 6 is started, laser is used for welding the corner position of the television backboard 5 through a laser welding head 603, simultaneously, sufficient nitrogen (generally about 10 liters per minute during welding) is injected into the laser welding head 603 through an air inlet 601, the nitrogen and the laser are coaxially discharged, the television backboard is protected during welding, a fine adjustment moving seat 403 is used for driving the laser welding mechanism 6 to move up and down, the television backboard 5 is welded, in the welding process, smoke is generated at a welding position, a motor 703 below a recovery mechanism 7 is started at the moment, the output end of the motor 703 drives a fan blade 705 to rotate, the fan blade 705 sucks air through a suction nozzle 702, the suction nozzle 702 is positioned right above the welding position and synchronously moves along with the laser welding head 603, so that the smoke generated during welding can be absorbed, simultaneously, the discharged nitrogen is synchronously absorbed, the flue gas is collected through the filter screen 706, the residual nitrogen (comprising partial oxygen and the like, but with larger concentration than the air nitrogen) enters the metal tube 8 through the air suction groove 707, and is sprayed to the back of the welding part through the rotating spray nozzle 801 at the top end of the metal tube 8, the rotating spray nozzle 801 is aligned with the laser welding head 603, the sprayed air flow is opposite to the back of the welding point, the welding part is protected through the residual nitrogen, partial air at the inner side of the television backboard 5 is discharged, the oxidization of the back of the welding part is reduced, the welding effect is improved, after the welding is finished, and because a temporary sealing space is formed between the television backboard 5 and the second bearing table 4, most of the recovered nitrogen temporarily stays in the television backboard 5, at the moment, the second clamping cylinder 9 is started to return, the extrusion plate 902 returns first, spring bar 905 resets to pulling gasbag 903 expansion, will be partly nitrogen gas also inhale in the gasbag 903, drive locating plate 904 and TV backplate 5 separation afterwards, remove through external sucking disc transport mechanism with the TV backplate 5 that welds, when TV backplate 5 removed, the stacked nitrogen gas spreads under the effect of air current, and simultaneously send follow-up TV backplate 5 to welding mechanism in, start second clamp cylinder 9 again and carry out spacing holding to the hydraulic pressure TV backplate this moment, the air current that spouts in the gasbag 903 is nitrogen gas this moment, and the opening of gasbag 903 just is to the welding position, make the welding corner back of TV backplate 5 have been filled with partial nitrogen gas, avoid welding the beginning time, recovery mechanism 7 preliminary operation does not have sufficient nitrogen gas to be sent to the TV backplate 5 inboard by tubular metal resonator 8, thereby the protection effect when welding has been improved, nitrogen gas utilization has been improved.
Although embodiments of the invention have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the invention as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the invention, provided that such modifications are within the scope of the appended claims.
Claims (9)
1. The utility model provides a TV backplate laser welding device, includes base (1), two sets of first guide rail (2) are installed on the top of base (1), and crossbearer (201) are installed to the top symmetry of first guide rail (2), and first plummer (3) and second plummer (4) are all installed on the top of every group crossbearer (201), TV backplate (5) are installed with the top block of second plummer (4) to first plummer (3), its characterized in that: the top of the second bearing table (4) is provided with a moving mechanism, the outer side of the supporting plate (406) is provided with two groups of first clamping cylinders (405), the top of the supporting plate (406) is provided with two groups of second clamping cylinders (9) which are vertically arranged, the inside of the moving mechanism is provided with a laser welding mechanism (6), the top of the laser welding mechanism (6) is provided with a connecting plate (602), the laser welding mechanism (6) is fixedly arranged through the connecting plate (602), the side surface of the laser welding mechanism (6) is connected with an air inlet (601), the air inlet (601) is communicated with an external nitrogen source, the output end of the laser welding mechanism (6) is provided with a laser welding head (603), the outer side of the output end of the laser welding mechanism (6) is provided with a recovery mechanism (7), the recovery mechanism (7) can recover nitrogen during welding, the bottom end of the recovery mechanism (7) is connected with a metal pipe (8), the metal pipe (8) is bent and extends to the inner side of a television (5) from the lower side, the end of the metal pipe (8) is connected with a rotating spray head (801), the rotating spray head (5) is aligned with the output end of the television (5) to the television spray head (5), and the output ends of the two groups of second clamping cylinders (9) are provided with extrusion plates (902), and an air bag (903) is arranged between each extrusion plate (902) and each positioning plate (904) and is used for storing nitrogen.
2. The television back plate laser welding apparatus of claim 1, wherein: the top of second plummer (4) is located the output of laser welding mechanism (6) and installs backup pad (406), and two sets of first clamping cylinder (405) set up perpendicularly, and the output of first clamping cylinder (405) is connected with limit stop (408) with backup pad (406) edge alignment, and the output of each set of second clamping cylinder (9) aligns with a set of limit stop (408), and the output of second clamping cylinder (9) installs locating plate (904), locating plate (904) presss from both sides tightly spacingly with limit stop (408) to TV backplate (5).
3. The television back plate laser welding apparatus of claim 1, wherein: the opening of gasbag (903) aligns with the corner position of TV backplate (5), the internally mounted of gasbag (903) has spring rod (905), and the both ends of spring rod (905) respectively with crisscross push rod (901), the inner wall fixed connection of locating plate (904), two sets of the output of second clamp cylinder (9) is crisscross push rod (901), and crisscross setting from top to bottom of two sets of crisscross push rods (901), and the mounting notch has been seted up to the tip of stripper plate (902), and crisscross push rod (901) are through mounting notch and stripper plate (902) fixed connection.
4. The television back plate laser welding apparatus of claim 1, wherein: the utility model discloses a laser welding device, including second plummer (4), including supporting platform, positioning platform (402) are installed on the supporting platform, moving cylinder (401) has been seted up on the top of second supporting platform (4), and moving cylinder (401) output installs positioning platform (402), fine setting removes seat (403) are installed to one side of positioning platform (402), fine setting removes seat (403) including horizontal motor, vertical motor, and vertical motor installs in the output shaft outside of horizontal motor, and vertical motor's output is connected with the mount pad, and laser welding mechanism (6) are fixed in the mount pad below.
5. A television back plate laser welding apparatus according to claim 3, wherein: the side of locating bench (402) is connected with mounting bracket (4021), and absorption lamp (407) are installed in the outside of mounting bracket (4021), absorption lamp (407) are aligned with the output of laser welding mechanism (6).
6. The television back plate laser welding apparatus of claim 1, wherein: recovery mechanism (7) are located laser welding mechanism (6) output top and have seted up recovery baffle (701), and recovery mechanism (7)'s top has been seted up and has been located laser welding mechanism (6) output top suction nozzle (702), and suction nozzle (702) are installed on the top of recovery baffle (701), recovery baffle (701) internally mounted has filter screen (706), recovery mechanism (7) are located laser welding mechanism (6) below and install motor (703), the output of motor (703) is connected with flabellum (705), sealing member has been seted up in the outside of flabellum (705), and suction groove (707) have been seted up to the inside of recovery baffle (701), and suction groove (707) are put through flabellum (705) and suction nozzle (702).
7. The television back plate laser welding apparatus of claim 5, wherein: the fan blade is characterized in that a rotary sealing plate (704) is arranged below the fan blade (705), a limiting groove (7041) is formed in the outer side of the rotary sealing plate (704), the rotary sealing plate (704) is rotationally connected with a sealing piece through the limiting groove (7041), a reinforcing plate (7042) is arranged inside the rotary sealing plate (704), a metal tube (8) is fixedly connected with the rotary sealing plate (704), a through hole is formed in the rotary sealing plate (704), and the metal tube (8) is communicated with the fan blade (705) through the through hole.
8. The television back plate laser welding apparatus of claim 1, wherein: two sets of second guide rails (202) are installed on the top of the transverse frame (201), the first bearing table (3) and the second bearing table (4) move on the transverse frame (201) through the second guide rails (202), the second guide rails (202) are located on the side face of the transverse frame (201) and are provided with limiting clamping plates (203), and the limiting clamping plates (203) limit the movement of the second bearing table (4).
9. The television back plate laser welding apparatus of claim 1, wherein: fixed platform (301) has been seted up on the top of first plummer (3), inclined plane board has been seted up at the both ends of fixed platform (301), and two sets of inclined plane boards set up perpendicularly in the corner alignment of TV backplate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410284805.7A CN117983959A (en) | 2024-03-13 | 2024-03-13 | Television backboard laser welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410284805.7A CN117983959A (en) | 2024-03-13 | 2024-03-13 | Television backboard laser welding device |
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| Publication Number | Publication Date |
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| CN117983959A true CN117983959A (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410284805.7A Pending CN117983959A (en) | 2024-03-13 | 2024-03-13 | Television backboard laser welding device |
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| CN (1) | CN117983959A (en) |
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