CN117532143A - Argon recovery device and recovery method for laser welding - Google Patents
Argon recovery device and recovery method for laser welding Download PDFInfo
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- CN117532143A CN117532143A CN202311663714.6A CN202311663714A CN117532143A CN 117532143 A CN117532143 A CN 117532143A CN 202311663714 A CN202311663714 A CN 202311663714A CN 117532143 A CN117532143 A CN 117532143A
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- 238000003466 welding Methods 0.000 title claims abstract description 118
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 229910052786 argon Inorganic materials 0.000 title claims abstract description 49
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 17
- 230000001681 protective effect Effects 0.000 claims abstract description 62
- 230000005540 biological transmission Effects 0.000 claims abstract description 50
- 238000001179 sorption measurement Methods 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 13
- 239000012535 impurity Substances 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000605 extraction Methods 0.000 claims 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011261 inert gas Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/12—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure
- B23K26/123—Working by laser beam, e.g. welding, cutting or boring in a special atmosphere, e.g. in an enclosure in an atmosphere of particular gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses an argon recovery device for laser welding, which comprises a protective welding gun barrel, wherein a protective cover is fixed at the bottom end of the welding gun barrel, an auxiliary component is arranged in the side wall of the protective cover, a filtering component for filtering argon is horizontally arranged in the protective cover, the filtering component is in sliding fit with the protective cover, an adsorption component is fixed on the filtering component, a transmission component is arranged above the protective cover, the lower end of the transmission component is fixedly connected with the upper ends of the adsorption component and the auxiliary component respectively, a handle is horizontally fixed at the upper end of the welding gun barrel, a switch component is arranged at the lower end of the handle, a clamping component is in sliding fit with the handle, and the lower end of the switch component is in transmission connection with the transmission component. The beneficial effects of the invention are as follows: the bottom of the protective cover is provided with the air bag, when the switch is closed to weld the workpiece, the air bag expands to fill gaps between the protective cover and the surface of the workpiece, and the air bag is tightly attached to the surface of the workpiece to prevent argon leakage.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to an argon recovery device and an argon recovery method for laser welding.
Background
The laser welding is to utilize high-energy laser pulse to locally heat the material in micro area, the energy of laser radiation is led to the internal diffusion of the material by heat transfer, and the material is melted to form a specific molten pool so as to achieve the purpose of welding. In the laser welding at the present stage, a protective gas such as argon is often used for protecting the welding process, and the protective gas not only can isolate oxygen, nitrogen, hydrogen and the like in the air to prevent welding seams from oxidation and generating air holes, but also can protect a focusing lens from sputtering injury generated during welding, and simultaneously shields plasma generated by dispersing high-power laser welding.
The utility model discloses an inert gas protection device for laser welding machine as disclosed in chinese patent publication No. CN206550502U, including rear shield, stainless steel wire net, preceding protection casing, laser welding head and inert gas heat exchange tube, the laser welding head is installed in the inert gas cavity, has seted up the orifice on the preceding protection casing of laser welding head front end, the laser welding head rear end is fixed at the air guide cover front end, and the air guide cover welds at rear shield middle part, the welding wiring pipe is connected to the laser welding head rear end, inert gas supply pipe is connected to the air guide cover side, inert gas heat exchange tube inlays in the stainless steel wire net, an inert gas protection device for laser welding machine improves the security performance of welding, reduces the light energy loss when laser welding head welds, improves welding quality, realizes recycle of waste heat, energy saving and environmental protection.
In the scheme, the front protective cover and the rear protective cover are used for ensuring that argon can not leak during welding, and used argon can be recovered, but when the surface of a workpiece is uneven, gaps can be formed when the front protective cover is in contact with the surface of the workpiece, and part of argon can leak out of the gaps.
Disclosure of Invention
The invention aims to provide an argon recovery device and an argon recovery method for laser welding, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the utility model provides an argon gas recovery unit for laser welding, includes the protection welding barrel, welding barrel bottom mounting has the safety cover that is used for preventing the argon gas diffusion, be provided with the auxiliary assembly that is used for filling the gap between safety cover and the work piece surface in the safety cover lateral wall, the level is provided with the filter component that is used for filtering argon gas in the safety cover, filter component and safety cover sliding fit, be fixed with the adsorption component that is used for preventing welding barrel and rocks when welding on the filter component, the safety cover top is provided with drive assembly, drive assembly lower extreme respectively with adsorption component and auxiliary assembly upper end fixed connection, drive assembly and welding barrel outside sliding fit, welding barrel upper end level is fixed with the handle, the handle lower extreme is provided with switch assembly, switch assembly and handle sliding fit, switch assembly lower extreme and drive assembly transmission are connected.
As a further scheme of the invention: the utility model discloses a welding gun tube, including welding gun tube, protection subassembly, sealed chamber, protection cover top is vertical to be run through and has been seted up the connecting hole, the welding gun tube bottom passes the connecting hole and with connecting hole fixed connection, the protection subassembly includes the gasbag, the gasbag is fixed in the safety cover bottom, sealed chamber has been seted up in the safety cover lateral wall, sealed chamber lower extreme is linked together with the gasbag, sealed chamber upper end is vertical to run through the protection cover upper end, sealed chamber upper end is provided with the fourth slide bar, fourth slide bar and sealed chamber sliding fit.
As a further scheme of the invention: the adsorption component comprises a sucker, the sucker is vertically fixed with the filtering component, the bottom end of the sucker is made of rubber, an air cavity is vertically formed in the sucker in a penetrating mode, a third sliding rod is vertically arranged at the upper end of the sucker, the lower end of the third sliding rod is vertically and elastically connected with the inner wall of the air cavity, the cross section area of the lower end of the third sliding rod is larger than that of the upper end of the air cavity, the upper end of the third sliding rod vertically penetrates through the upper end of the protective sleeve, and the upper end of the third sliding rod is fixedly connected with the lower end of the transmission component.
As a further scheme of the invention: the welding gun comprises a welding gun barrel, a welding gun is arranged on the side wall of the welding gun barrel, a button is arranged on the side wall of the welding gun barrel, the welding gun barrel is close to the lower end of the welding gun barrel, the welding gun barrel is provided with a button groove in a vertical mode, the button is in sliding fit with the button groove, a switch post is fixed in the middle of one side of the button, which is close to one side of the handle, a switch groove is vertically arranged on one side of the lower end of the welding gun barrel, which is close to the switch post, the switch post is in sliding fit with the switch groove, a first touch plate is fixed at the bottom of the switch groove, when the first touch plate is contacted with the second touch plate, the switch is closed, first sliding grooves are vertically arranged on two sides of the switch, a first sliding rod is in sliding fit with the first sliding rod in the first sliding groove, one side of the first sliding rod, which is close to the button, is fixedly connected with the button, and one end of the first sliding rod, which extends into the first sliding rod, is elastically connected with the bottom of the first sliding groove.
As a further scheme of the invention: the vertical second sliding tray that has seted up of button groove lower extreme, sliding fit has the second slide bar in the second sliding tray, the welding barrel is close to the bottom outside of second sliding tray and is fixed with the fixed block, the transmission groove has been seted up in the fixed block, the transmission groove is linked together with second slide tray bottom, the horizontal rotation is connected with the dwang in the transmission groove, be fixed with the gear on the dwang, second slide bar bottom fixing has the second rack, second rack and gear engagement transmission.
As a further scheme of the invention: the transmission assembly comprises a sliding ring, the sliding ring is positioned between the fixed block and the protective sleeve, the sliding ring is in sliding fit with the outer wall of the welding gun barrel, the lower end of the sliding ring is fixedly connected with a third sliding rod and a fourth sliding rod respectively, a first rack is vertically fixed at the upper end of the sliding ring, the upper end of the first rack vertically penetrates through the bottom end of the fixed block, and the first rack is in meshed transmission with a gear.
As a further scheme of the invention: the guide way has been vertically seted up on the protective sheath inner wall, filter component includes the filter, filter and welding barrel outer wall sliding fit, the filter outside is fixed with the guide block, guide block and guide way sliding fit, guide block upper end and guide way upper end elastic connection, guide block lower extreme and guide way lower extreme elastic connection, the sucking disc upper end passes the filter and with filter fixed connection.
As a further scheme of the invention: the welding gun comprises a welding gun barrel, wherein a laser generator is fixed in the welding gun barrel, an air supply pipe is arranged on the side wall of the welding gun barrel, an air exhaust pipe is fixed at the upper end of a protective sleeve, the air exhaust pipe upwards penetrates through a sliding ring and a fixed block in sequence, the sliding ring is in sliding fit with the air exhaust pipe, and the air supply pipe and the air exhaust pipe are electrically connected with a button.
An argon recovery method for laser welding comprises the following steps: the protective sleeve is covered above the workpiece, the button is pressed, the sucking disc is fixedly adsorbed to the workpiece, meanwhile, the air bag expands to fill gaps between the bottom end of the protective cover and the surface of the workpiece, after the button is pressed, the switch is closed, the air supply pipe and the exhaust pipe are opened, welding is started, used argon gas is filtered through the filter plate during welding, impurities in the argon gas are blocked, filtered argon gas is recovered from the exhaust pipe, after welding is finished, the button is released, the sucking disc and the workpiece are adsorbed and fixed, the filter plate is made to vibrate up and down, and therefore the impurities adsorbed on the filter plate are shaken off, and the filter plate is cleaned.
Compared with the prior art, the invention has the beneficial effects that: 1. the bottom of the protective cover is provided with an air bag, when the switch is closed to weld the workpiece, the air bag expands to fill gaps between the bottom end of the protective cover and the surface of the workpiece, and the air bag is tightly attached to the surface of the workpiece to prevent argon leakage; 2. the sucking disc is arranged in the protective cover, and when the switch is closed to weld the workpiece, the sucking assembly is fixedly sucked with the workpiece, so that the phenomenon that the welding position is deviated and the welding quality is influenced due to the fact that the workpiece is deviated due to shaking of a user or external force in the welding process is prevented; 3. there is sucking disc fixed connection with the filter, when the welding, the filter compresses the spring downwards, after the welding is accomplished, the sucking disc is relieved and is fixed with the work piece surface, shakes from top to bottom under the effect of spring, shakes away the impurity of adsorbing on the filter, avoids the filter not clear up for a long time and leads to blockking up by tiny splash, influences follow-up filtration efficiency and argon gas's circulation speed.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the present invention.
Fig. 3 is a schematic view of the welded gun barrel of the present invention.
Fig. 4 is a schematic structural view of the protective sheath of the present invention.
Fig. 5 is a schematic view of the bottom structure of the protective sheath of the present invention.
Fig. 6 is an elevational cross-sectional view of the overall structure of the present invention.
Fig. 7 is an enlarged view of the structure of fig. 6 a according to the present invention.
Fig. 8 is an enlarged view of the structure of fig. 6B according to the present invention.
Fig. 9 is an enlarged view of the structure of fig. 6C according to the present invention.
Fig. 10 is an enlarged view of the structure D of fig. 6 according to the present invention.
In the figure: 1. welding a gun barrel; 101. a laser generator; 102. a button groove; 103. a second sliding groove; 104. an air supply pipe; 2. a grip; 201. a switch groove; 202. a first sliding groove; 203. a first touch plate; 3. a fixed block; 301. a transmission groove; 302. a gear; 303. a rotating lever; 304. a first rack; 4. a protective cover; 401. a connection hole; 402. a guide groove; 403. sealing the cavity; 404. an air bag; 5. a slip ring; 501. third, the third; 502. a fourth slide bar; 6. a filter plate; 601. a guide block; 7. a suction cup; 701. an air cavity; 8. a button; 801. a first slide bar; 802. a switch column; 803. a second slide bar; 804. a second touch plate; 805. a second rack; 9. and (5) an exhaust pipe.
Detailed Description
Referring to fig. 1-10, in an embodiment of the invention, an argon gas recycling device for laser welding comprises a welding gun tube 1, a protective cover 4 for preventing argon gas from diffusing is fixed at the bottom end of the welding gun tube 1, an auxiliary component for filling gaps between the protective cover 4 and the surface of a workpiece is arranged in the side wall of the protective cover 4, the surface of the workpiece is prevented from being uneven, the protective cover 4 cannot be completely attached to the surface of the workpiece, so that partial argon gas leaks, a filtering component for filtering argon gas is horizontally arranged in the protective cover 4, the filtering component is in sliding fit with the protective cover 4, an adsorption component for preventing the welding gun tube 1 from shaking during welding is fixed on the filtering component, the lower end of the adsorption component is movably adsorbed to the surface of the workpiece, a transmission component is arranged above the protective cover 4, the lower end of the transmission component is fixedly connected with the upper end of the adsorption component and the auxiliary component respectively, the transmission component is in sliding fit with the outer side of the welding gun tube 1, when the transmission component moves downwards, the adsorption component is driven to move downwards and adsorb the workpiece, and simultaneously, the auxiliary component moves downwards to be tightly attached to the workpiece grip 2, the upper end of the welding gun tube 1 is horizontally fixed with the filtering component, the lower end of the switch component is provided with the switch component, and the switch component is connected with the grip 2 in sliding fit with the grip component when the switch component is closed, and the switch component is driven to move downwards, and the grip component is closed.
In the actual use process, in the initial state, the switch component is positioned at one end far away from the grip 2, the transmission component is positioned at one end far away from the protective cover 4, the adsorption component is positioned above the surface of the workpiece and is not contacted, and the auxiliary component is contacted with the surface of the workpiece; when the surface of a workpiece is welded, the switch component is pressed to enable the switch component to approach the grip 2, the switch component is closed to drive the transmission component to approach the protective cover 4 downwards, the absorption component is driven to move downwards until the absorption component is in extrusion contact with the surface of the workpiece, so that the absorption component is fixed with the workpiece in an absorption manner, the welding quality is prevented from being influenced due to deviation of a welding position caused by shaking hands of a user or deviation of the workpiece caused by external force in the welding process, meanwhile, the transmission component moves downwards to drive the auxiliary component to move downwards, the auxiliary component is tightly attached to the surface of the workpiece, uneven surface of the workpiece is prevented, and gaps are formed at the contact position of the protective cover 4 and the workpiece, so that part of argon gas leaks into the air from the gaps; after the welding is finished, the clamping assembly is loosened, the switch assembly is far away from the handle 2, the switch assembly is disconnected, the transmission assembly is driven to be upwards far away from the protective cover 4, the adsorption fixation of the adsorption assembly and the workpiece is released, the adsorption assembly is driven to move upwards, and meanwhile, the auxiliary assembly is driven to move upwards to return to an initial state.
Specifically, referring to fig. 4-6 and fig. 9-10, the top end of the protective sleeve 4 is vertically perforated with a connecting hole 401, the bottom end of the welding gun tube 1 passes through the connecting hole 401 and is fixedly connected with the connecting hole 401, the protective assembly comprises an air bag 404, the air bag 404 is fixed at the bottom end of the protective cover 4, a sealing cavity 403 is provided in the side wall of the protective cover 4, the lower end of the sealing cavity 403 is communicated with the air bag 404, the upper end of the sealing cavity 403 vertically penetrates through the upper end of the protective cover 4, a fourth sliding rod 502 is arranged at the upper end of the sealing cavity 403, the fourth sliding rod 502 is in sliding fit with the sealing cavity 403, when the fourth sliding rod 502 moves downwards, the air bag 404 is inflated, the air bag 5 is tightly adhered to the surface of a workpiece, a gap between the bottom end of the protective cover 4 and the surface of the workpiece is filled, part of argon gas is prevented from leaking into the air from the gap between the protective cover 4 and the contact position of the workpiece due to uneven surface of the workpiece, and the upper end of the fourth sliding rod 502 is fixedly connected with the lower end of the transmission assembly.
In the actual use process, in the initial state, the transmission assembly is positioned at one end far away from the protective cover 4, and the air bag 404 is in contact with the surface of the workpiece; when the transmission assembly moves downwards, the transmission assembly drives the fourth sliding rod 502 to move downwards, the fourth sliding rod 502 slides into the sealing cavity 403, so that the air bag 404 is expanded, the air bag 404 is tightly attached to the surface of a workpiece, gaps between the bottom end of the protective cover 4 and the surface of the workpiece are filled, and part of argon gas is prevented from leaking into the air from the gaps at the contact positions of the protective cover 4 and the workpiece due to uneven surface of the workpiece; when the transmission assembly moves upwards, the transmission assembly drives the fourth sliding rod 502 to move upwards, and the fourth sliding rod 502 slides outwards of the sealing cavity 403, so that the air bag 404 contracts and returns to the initial state.
Further, referring to fig. 4-6 and fig. 9-10, the adsorption assembly includes a suction cup 7, the suction cup 7 is vertically fixed with the filtration assembly, the bottom end of the suction cup 7 is made of rubber, an air cavity 701 is vertically and penetratingly provided in the suction cup 7, a third sliding rod 501 is vertically provided at the upper end of the suction cup 7, the lower end of the third sliding rod 501 is vertically and elastically connected with the inner wall of the air cavity 701, the cross-sectional area of the lower end of the third sliding rod 501 is greater than the cross-sectional area of the upper end of the air cavity 701, the upper end of the third sliding rod 501 vertically penetrates through the upper end of the protective sleeve 4, and the upper end of the third sliding rod 501 is fixedly connected with the lower end of the transmission assembly, when the transmission assembly moves downwards, the adsorption assembly is driven to be fixedly adsorbed with the surface of the workpiece, so that deviation of the welding position caused by shaking hands or external force of a user during the welding process is prevented, and welding quality is affected; when the transmission component moves upwards, the adsorption component is driven to be upwards released from being fixed with the surface of the workpiece.
In the actual use process, in the initial state, the transmission assembly is far away from one end of the protective cover 4, the sucker 7 is positioned above the surface of the workpiece and is not contacted, the lower end of the third sliding rod 501 is tightly contacted with the upper end of the sucker 7, and the upper end of the air cavity 701 is in a closed state; when the transmission assembly moves downwards, the transmission assembly drives the third sliding rod 501 to move downwards, and drives the sucker 7 to be close to the surface of the workpiece downwards until the sucker 7 is extruded, at this time, the inside of the air cavity 701 is in a sealed state, so that the lower end of the sucker 7 is fixedly adsorbed on the surface of the workpiece, and the phenomenon that the welding position is deviated and the welding quality is influenced due to the fact that the workpiece is deviated due to shaking of a user or external force in the welding process is prevented; when the transmission assembly moves upwards, the transmission assembly drives the third sliding rod 501 to move upwards, the lower end of the sucker 7 is fixedly adsorbed on the surface of the workpiece, the third sliding rod 501 moves upwards, the spring stretches, the upper end of the air cavity 701 is opened, the sucker 7 and the surface of the workpiece are desorbed, and the sucker 7 moves upwards under the action of the spring to return to an initial state.
Further, referring to fig. 1-3 and 6-7, a button slot 102 is vertically formed on a side wall of the welding gun barrel 1 near the lower end of the grip 2, the switch assembly includes a button 8, the button 8 is slidably matched with the button slot 102, a switch post 802 is fixed in the middle of one side of the button 8 near the grip 2, a switch slot 201 is vertically formed on one side of the lower end of the grip 2 near the switch post 802, the switch post 802 is slidably matched with the switch slot 201, a first touch plate 203 is fixed at the bottom of the switch slot 201, a second touch plate 804 is fixed at one end of the switch post 802 near the switch slot 201, when the first touch plate 203 is in contact with the second touch plate 804, first slide slots 202 are vertically formed on two sides of the switch 201, first slide rods 801 are slidably matched with the first slide rods 801, one sides of the first slide rods 801 near the button 8 are fixedly connected with the button 8, and one ends of the first slide rods 801 extending into the first slide slots 202 are elastically connected with the bottom ends of the first slide slots 202.
In the actual use process, in the initial state, the button 8 is positioned at the lower end of the button slot 102, and the first touch plate 203 is not contacted with the second touch plate 804; when the surface of a workpiece is welded, the button 8 is pressed, so that the handle 2 of the button 8 is close, the first sliding rod 202 slides into the first sliding groove 202 to squeeze the spring, and meanwhile, the switch column 802 is driven to slide into the switch groove 201, the second touch plate 804 is driven to be contacted with the first touch plate 203, the switch is closed, and welding is started; when the welding is completed, the button 8 is released, the button 8 is away from the grip 2 under the action of the spring, the first contact plate 203 is separated from contact with the second contact plate 804, and the switch is turned off.
Further, referring to fig. 1-3 and fig. 6-8, a second sliding groove 103 is vertically provided at the lower end of the button groove 102, a second sliding rod 803 is slidably fitted in the second sliding groove 103, a fixed block 3 is fixed on the outer side of the bottom end of the welding gun barrel 1 near the second sliding groove 103, a transmission groove 301 is provided in the fixed block 3, the transmission groove 301 is communicated with the bottom end of the second sliding groove 103, a rotating rod 302 is horizontally and rotatably connected in the transmission groove 301, a gear 303 is fixed on the rotating rod 302, a second rack 805 is fixed at the bottom end of the second sliding rod 803, and the second rack 805 is meshed with the gear 303 for transmission.
Further, referring to fig. 1-3, 6 and 8, the transmission assembly includes a sliding ring 5, the sliding ring 5 is located between the fixed block 3 and the protective sleeve 4, the sliding ring 5 is slidably matched with the outer wall of the welding gun barrel 1, the lower end of the sliding ring 5 is fixedly connected with a third sliding rod 501 and a fourth sliding rod 502 respectively, a first rack 304 is vertically fixed at the upper end of the sliding ring 5, the upper end of the first rack 304 vertically penetrates through the bottom end of the fixed block 3, and the first rack 304 is meshed with the gear 302 for transmission.
In the actual use process, in the initial state, the second rack 805 is located at the bottom end of the second sliding groove 103, the first rack 304 is located at the upper end of the transmission groove 301, and the sliding ring 5 is located at one side close to the bottom end of the fixed block 3; when the button 8 approaches the grip 2, the second sliding rod 803 slides upwards, so as to drive the second rack 805 to slide upwards, drive the gear 303 to rotate, drive the first rack 304 to slide downwards, and drive the sliding ring 5 to slide downwards; when the button 8 is far away from the grip 2, the second sliding rod 803 slides downwards, driving the second rack 805 to slide downwards, driving the gear 303 to rotate reversely, driving the first rack 304 to slide upwards, and driving the sliding ring 5 to slide upwards.
Further, referring to fig. 6 and 9, a guide groove 402 is vertically formed in the inner wall of the protective sleeve 4, the filter assembly comprises a filter plate 6, the filter plate 6 is slidably matched with the outer wall of the welding gun tube 1, a guide block 601 is fixed on the outer side of the filter plate 6, the guide block 601 is slidably matched with the guide groove 402, the upper end of the guide block 601 is elastically connected with the upper end of the guide groove 402, the lower end of the guide block 601 is elastically connected with the lower end of the guide groove 402, and the upper end of the suction disc 7 penetrates through the filter plate 6 and is fixedly connected with the filter plate 6.
In the actual use process, in the initial state, the guide block 601 is located in the middle of the guide groove 402; when a workpiece is welded, argon is recovered through the filter plate 6, and as tiny splashes generated during welding are easy to dope in the recovered argon, the recovered argon is too much in impurity and inconvenient to use next time, so that the recovered argon is filtered by the filter plate 6, the tiny splashes are blocked and adsorbed, and when the workpiece is welded, the sliding ring 5 drives the sucker 7 to move downwards to drive the filter plate 6 to move downwards; when the welding is finished, the suction disc 7 and the surface of the workpiece are desorbed, the guide block 601 drives the filter plate 6 to vibrate up and down under the action of elasticity, impurities adsorbed on the filter plate 6 are shaken off, and the filter plate 6 is prevented from being blocked by fine splashes due to long-term unclean, so that the follow-up filtering efficiency and the circulation speed of argon are affected.
Further, referring to fig. 1-4 and fig. 6-9, a laser generator 101 is fixed in the welding gun tube 1, an air supply tube 104 is provided on the side wall of the welding gun tube 1, an air exhaust tube 9 is fixed at the upper end of the protective sleeve 4, the air exhaust tube 9 penetrates through the sliding ring 5 and the fixed block 3 in turn upwards, the sliding ring 5 is in sliding fit with the air exhaust tube 9, the air supply tube 104 and the air exhaust tube 9 are electrically connected with the button 8, when the button 8 is close to the grip 2, the switch is closed, and the air supply tube 104 and the air exhaust tube 9 are simultaneously opened; when the button 8 is moved away from the grip 2, the switch is turned off and the air supply pipe 104 is closed simultaneously with the air exhaust pipe 9.
Claims (9)
1. The utility model provides an argon gas recovery unit for laser welding, includes the protection welding barrel, welding barrel bottom mounting has the safety cover that is used for preventing the argon gas diffusion, its characterized in that, be provided with the auxiliary assembly that is used for filling the gap between safety cover and the work piece surface in the safety cover lateral wall, the level is provided with the filter component that is used for filtering argon gas in the safety cover, filter component and safety cover sliding fit, be fixed with the adsorption component that is used for preventing welding barrel when welding rocking on the filter component, the safety cover top is provided with drive assembly, the drive assembly lower extreme respectively with adsorption component and auxiliary assembly upper end fixed connection, drive assembly and welding barrel outside sliding fit, welding barrel upper end level is fixed with the handle, the handle lower extreme is provided with switch assembly, block the subassembly and handle sliding fit, switch assembly lower extreme and drive assembly transmission are connected.
2. The argon recovery device for laser welding according to claim 1, wherein the top end of the protective sleeve vertically penetrates through and is provided with a connecting hole, the bottom end of the welding gun tube penetrates through the connecting hole and is fixedly connected with the connecting hole, the protective assembly comprises an air bag, the air bag is fixed at the bottom end of the protective sleeve, a sealing cavity is formed in the side wall of the protective sleeve, the lower end of the sealing cavity is communicated with the air bag, the upper end of the sealing cavity vertically penetrates through the upper end of the protective sleeve, a fourth sliding rod is arranged at the upper end of the sealing cavity, and the fourth sliding rod is in sliding fit with the sealing cavity.
3. The argon recovery device for laser welding according to claim 2, wherein the adsorption assembly comprises a sucker, the sucker is vertically fixed with the filtering assembly, the bottom end of the sucker is made of rubber, an air cavity is vertically formed in the sucker in a penetrating mode, a third sliding rod is vertically arranged at the upper end of the sucker, the lower end of the third sliding rod is vertically and elastically connected with the inner wall of the air cavity, the cross section area of the lower end of the third sliding rod is larger than that of the upper end of the air cavity, the upper end of the third sliding rod vertically penetrates through the upper end of the protective sleeve, and the upper end of the third sliding rod is fixedly connected with the lower end of the transmission assembly.
4. The argon gas recovery device for laser welding according to claim 3, wherein a button groove is vertically formed in the side wall, close to the lower end of the handle, of the welding gun barrel, the switch assembly comprises a button, the button is in sliding fit with the button groove, a switch post is fixed in the middle of one side, close to the handle, of the button, a switch groove is vertically formed in one side, close to the switch post, of the lower end of the handle, the switch post is in sliding fit with the switch groove, a first touch plate is fixed at the bottom of the switch groove, a second touch plate is fixed at one end, close to the switch groove, of the switch post, when the first touch plate is in contact with the second touch plate, a first sliding groove is vertically formed in two sides of the switch, a first sliding rod is in sliding fit with the first sliding groove, one side, close to the button, of the first sliding rod is fixedly connected with the button, and one end, stretching into the first sliding rod, of the first sliding rod is elastically connected with the bottom of the first sliding groove.
5. The argon recovery device for laser welding according to claim 4, wherein a second sliding groove is vertically formed in the lower end of the button groove, a second sliding rod is slidably matched in the second sliding groove, a fixed block is fixed on the outer side of the bottom end of the welding gun barrel, which is close to the second sliding groove, a transmission groove is formed in the fixed block, the transmission groove is communicated with the bottom end of the second sliding groove, a rotating rod is horizontally connected in the transmission groove in a rotating mode, a gear is fixed on the rotating rod, a second rack is fixed at the bottom end of the second sliding rod, and the second rack is in meshed transmission with the gear.
6. The argon recovery device for laser welding according to claim 5, wherein the transmission assembly comprises a sliding ring, the sliding ring is located between the fixed block and the protective sleeve, the sliding ring is in sliding fit with the outer wall of the welding gun barrel, the lower end of the sliding ring is fixedly connected with a third sliding rod and a fourth sliding rod respectively, a first rack is vertically fixed at the upper end of the sliding ring, the upper end of the first rack vertically penetrates through the bottom end of the fixed block, and the first rack is meshed with the gear for transmission.
7. The argon recovery device for laser welding according to claim 6, wherein the guide groove is vertically formed in the inner wall of the protective sleeve, the filter assembly comprises a filter plate, the filter plate is in sliding fit with the outer wall of the welding gun barrel, a guide block is fixed on the outer side of the filter plate and is in sliding fit with the guide groove, the upper end of the guide block is elastically connected with the upper end of the guide groove, the lower end of the guide block is elastically connected with the lower end of the guide groove, and the upper end of the sucking disc penetrates through the filter plate and is fixedly connected with the filter plate.
8. The argon recovery device for laser welding according to claim 7, wherein the laser generator is fixed in the welding gun barrel, an air supply pipe is arranged on the side wall of the welding gun barrel, an air extraction pipe is fixed at the upper end of the protective sleeve, the air extraction pipe sequentially penetrates through the sliding ring and the fixed block upwards, the sliding ring is in sliding fit with the air extraction pipe, and the air supply pipe and the air extraction pipe are electrically connected with the button.
9. An argon recovery method for laser welding, employing an argon recovery apparatus for laser welding as claimed in any one of claims 1 to 8, characterized by comprising the steps of: the protective sleeve is covered above the workpiece, the button is pressed, the sucking disc is fixedly adsorbed to the workpiece, meanwhile, the air bag expands to fill gaps between the bottom end of the protective cover and the surface of the workpiece, after the button is pressed, the switch is closed, the air supply pipe and the exhaust pipe are opened, welding is started, used argon gas is filtered through the filter plate during welding, impurities in the argon gas are blocked, filtered argon gas is recovered from the exhaust pipe, after welding is finished, the button is released, the sucking disc and the workpiece are adsorbed and fixed, the filter plate is made to vibrate up and down, and therefore the impurities adsorbed on the filter plate are shaken off, and the filter plate is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311663714.6A CN117532143A (en) | 2023-12-01 | 2023-12-01 | Argon recovery device and recovery method for laser welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311663714.6A CN117532143A (en) | 2023-12-01 | 2023-12-01 | Argon recovery device and recovery method for laser welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117532143A true CN117532143A (en) | 2024-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311663714.6A Withdrawn CN117532143A (en) | 2023-12-01 | 2023-12-01 | Argon recovery device and recovery method for laser welding |
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| Country | Link |
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| CN (1) | CN117532143A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117983959A (en) * | 2024-03-13 | 2024-05-07 | 广东欧谛特光电科技有限公司 | Television backboard laser welding device |
-
2023
- 2023-12-01 CN CN202311663714.6A patent/CN117532143A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117983959A (en) * | 2024-03-13 | 2024-05-07 | 广东欧谛特光电科技有限公司 | Television backboard laser welding device |
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Application publication date: 20240209 |