CN116275473A - Handheld laser welding machine capable of preventing metal from splashing and use method - Google Patents
Handheld laser welding machine capable of preventing metal from splashing and use method Download PDFInfo
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- CN116275473A CN116275473A CN202310552281.0A CN202310552281A CN116275473A CN 116275473 A CN116275473 A CN 116275473A CN 202310552281 A CN202310552281 A CN 202310552281A CN 116275473 A CN116275473 A CN 116275473A
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- 238000003466 welding Methods 0.000 title claims abstract description 132
- 239000002184 metal Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001681 protective effect Effects 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000004544 sputter deposition Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 38
- 230000006835 compression Effects 0.000 claims description 28
- 238000007906 compression Methods 0.000 claims description 28
- 230000001276 controlling effect Effects 0.000 claims description 10
- 230000002035 prolonged effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 45
- 238000004891 communication Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000003750 conditioning effect Effects 0.000 description 3
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- 238000010168 coupling process Methods 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
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- 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
- B23K26/0096—Portable laser equipment, e.g. hand-held laser apparatus
-
- 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
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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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 relates to the technical field of laser welding, in particular to a hand-held laser welding machine capable of preventing metal from splashing and a use method thereof. The invention provides a handheld laser welding machine capable of preventing metal from splashing, which comprises a welding gun body and an adjusting nozzle fixed on the welding gun body, wherein the adjusting nozzle is provided with a plurality of opening adjusting pieces in a sliding way along the circumferential direction, and the opening adjusting pieces are suitable for guiding protective gas in the welding gun body to flow to the outer wall of the adjusting nozzle; through adjusting the setting of nozzle and a plurality of aperture regulating part, when the protection gas is outwards sprayed from interior sleeve, aperture regulating part can be according to the inside protective gas's of welder body pressure, and the guide part protective gas passes through aperture regulation advances outside the injection of outer protective tube, can avoid the sputtering of metal vapor and liquid droplet to the outer wall of outer protective tube when welding, has avoided outer protective tube outer wall to be corroded by the sputtering of liquid droplet, has improved the life of adjusting the nozzle.
Description
Technical Field
The invention relates to the technical field of laser welding, in particular to a hand-held laser welding machine capable of preventing metal from splashing and a use method thereof.
Background
In the field of laser welding, a laser welding gun is becoming more and more popular as a handheld laser welding device with a simple structure and convenient operation. The laser welding gun generally performs welding by emitting laser rays, comprises a galvanometer motor and a laser galvanometer connected to the galvanometer motor, and the galvanometer motor swings by a certain angle according to the conversion ratio of a certain voltage to an angle by inputting a position signal to the galvanometer motor, so that the laser galvanometer is driven to change the route of the laser rays to enable the laser rays to be emitted.
In the using process of the laser welding machine, protective gas needs to be conveyed into a welding gun so as to prevent metal vapor during welding from polluting a focusing lens; however, in the prior art, the shielding gas is mostly sprayed outwards through the inside of the welding gun nozzle, and the nozzle of the laser welding gun is a wear part, so that when the laser welding work is performed on metal, the sputtering of metal vapor and liquid droplets can corrode the outer wall of the welding gun nozzle, thereby reducing the service life of the welding gun nozzle, and therefore, the development of a handheld laser welding machine capable of preventing metal from splashing and a use method thereof are necessary.
Disclosure of Invention
The invention aims to provide a hand-held laser welding machine capable of preventing metal from splashing.
In order to solve the technical problems, the invention provides a hand-held laser welding machine capable of preventing metal from splashing, comprising: the welding gun comprises a welding gun body and an adjusting nozzle fixed on the welding gun body, wherein a plurality of opening adjusting pieces are slidably arranged on the adjusting nozzle along the circumferential direction, and the opening adjusting pieces are suitable for guiding protective gas inside the welding gun body to flow to the outer wall of the adjusting nozzle.
Preferably, the adjusting nozzle includes: the welding gun comprises an inner sleeve and an outer protection cylinder, wherein one end of the inner sleeve is provided with a fixing thread matched with a welding gun body, and the inner sleeve is fixed at the end part of the welding gun body through the thread;
the outer protection cylinder is slidably sleeved on the outer wall of one end of the inner sleeve, which is far away from the welding gun body;
a plurality of first positioning holes are formed in the inner sleeve along the circumferential direction, and the opening adjusting piece is slidably arranged in the first positioning holes;
the outer protection cylinder is provided with a plurality of second positioning holes along the circumferential direction, and one second positioning hole corresponds to one first positioning hole; wherein,,
the opening adjusting piece is suitable for sliding outwards from the first positioning hole to the position that the opening adjusting piece protrudes out of the outer wall of the outer protection cylinder.
Preferably, the inner wall of the first positioning Kong Zina sleeve is inclined towards the outer wall, and the first positioning hole is provided with a first sliding groove along the radial direction of the inner sleeve;
the outer wall of the opening adjusting piece is provided with a first sliding block matched with the first sliding groove;
a first compression spring is fixed in the first sliding groove, one end of the first compression spring is fixed on the inner side wall of the first sliding groove, and the other end of the first compression spring is fixed on the side wall of the first sliding block; wherein,,
the outer protection cylinder is pushed inwards to be communicated with the first positioning hole and the second positioning hole, and the first compression spring is suitable for pushing the opening degree adjusting piece to slide outwards.
Preferably, the opening degree adjuster includes: the sliding cylinder is hollow, and the outer diameter of the sliding cylinder is smaller than the inner diameter of the first positioning hole and the inner diameter of the second positioning hole;
the outer end of the sliding cylinder is provided with an inclined plane, and the outer sealing disc covers the inclined plane of the sliding cylinder;
the outer sealing disc is in sliding sealing with the first positioning hole and the second positioning hole;
the inner sliding disc is slidably arranged in the sliding cylinder;
one end of the linkage rod is fixed on the inner sliding disc, and the other end of the linkage rod is fixed on the outer sealing disc; wherein,,
after the outer sealing disk slides to protrude out of the outer wall of the outer protection cylinder, the protective gas in the welding gun body flows towards the direction of the adjusting nozzle, and the protective gas is suitable for pushing the outer sealing disk to slide outwards.
Preferably, the inner sliding disc is provided with a plurality of air holes, and the protective gas is suitable for penetrating through the inner sliding disc and pushing the outer sealing disc to slide outwards.
Preferably, a second sliding groove is formed in the inner wall of the sliding cylinder, and the second sliding groove extends along the axial direction of the sliding cylinder;
the side wall of the inner sliding disc is fixed with a second sliding block matched with the second sliding groove;
the second sliding groove is internally provided with a second compression spring, the second compression spring is movably fixed on the second sliding block, and the other end of the second compression spring is fixed on the side wall of the second sliding groove.
Preferably, two angle grooves are symmetrically formed in the outer wall of the outer protection cylinder, and the two angle grooves extend along the axial direction of the outer protection cylinder.
Preferably, a positioning block is fixed at the lower end of the outer wall of the outer protection cylinder, a through hole is formed in the positioning block, and welding wires are suitable for penetrating through the through hole to weld metal.
Preferably, the welding gun body is hinged with a clamping block, the clamping block is arranged below the positioning block, and the clamping block is suitable for limiting welding wires.
Preferably, the inner diameter of the outer protection cylinder near the end part is gradually reduced, and when the outer protection cylinder is slid to be communicated with the first positioning hole and the second positioning hole, the inner sleeve is suitable for cleaning the inner wall of the outer protection cylinder.
On the other hand, the invention also provides a use method of the hand-held laser welding machine for preventing metal splashing,
the welding wire extends outwards from the wire reel, and moves towards the direction of the nozzle through the clamping block until the welding wire passes through the positioning block;
before the welding gun body works, the protective gas needs to be conveyed into the welding gun body, flows into the welding gun body through a gas conveying pipe and is sprayed outwards through the adjusting nozzle;
the outer protection cylinder is slid upwards until the first positioning hole is communicated with the second positioning hole, and at the moment, the end part of the inner sleeve is suitable for cleaning the inner wall of the outer protection cylinder;
the first compression spring is suitable for pushing the opening degree adjusting piece to slide outwards so that the outer wall of the opening degree adjusting piece protrudes out of the outer wall of the outer protection cylinder;
when the protective gas is sprayed outwards along the inner wall of the inner sleeve, the protective gas is suitable for pushing the inner sliding disc and the outer sealing disc to slide outwards along the inner wall of the sliding cylinder, when the outer sealing disc is gradually far away from the outer protecting cylinder, part of the protective gas in the inner sleeve is limited by the outer sealing disc and flows towards the direction of welded metal, so that the sputtering of metal vapor and liquid droplets to the outer wall of the outer protecting cylinder during welding is avoided, the sputtering corrosion of the outer wall of the outer protecting cylinder by the liquid droplets is avoided, and the service life of the adjusting nozzle is prolonged.
The handheld laser welding machine for preventing metal splashing has the beneficial effects that through the arrangement of the adjusting nozzle and the opening adjusting pieces, when the outer protection cylinder is slid, the inner sleeve can clean the inner wall of the outer protection cylinder; meanwhile, when the protective gas is sprayed outwards from the inner sleeve, the opening adjusting piece can guide part of the protective gas to spray outwards from the outer protective cylinder through the opening adjustment according to the pressure of the protective gas flowing inside the welding gun body, so that the outer wall of the outer protective cylinder can be prevented from being sputtered and corroded by liquid droplets during welding, and the service life of the adjusting nozzle is prolonged.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of a preferred embodiment of a metal splash guard hand held laser welder of the present invention;
FIG. 2 is a perspective view of a conditioning nozzle of the present invention;
FIG. 3 is a cross-sectional view of an adjustment nozzle and an opening adjustment member of the present invention;
fig. 4 is a perspective view of the opening degree adjuster of the present invention;
fig. 5 is a schematic view showing a misalignment state of the opening degree adjusting member and the second positioning hole of the present invention;
fig. 6 is a schematic view showing a state in which the opening degree adjuster guides the shielding gas according to the present invention;
fig. 7 is a schematic view of the welding metal state of the conditioning nozzle of the present invention.
In the figure:
1. a welding gun body; 10. a clamping block; 11. a first button; 12. a second button;
2. adjusting the nozzle; 21. an inner sleeve; 22. an outer protective cylinder; 220. an angle groove; 221. a positioning block; 222. a through hole; 23. a first positioning hole; 24. a second positioning hole;
3. an opening degree adjusting member; 31. a sliding cylinder; 310. an inclined plane; 311. a second sliding groove; 312. a second compression spring;
32. an inner slide plate; 320. air holes; 33. an outer sealing disk; 34. and a linkage rod.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In a first embodiment, as shown in fig. 1 to 7, the present invention provides a hand-held laser welding machine for preventing metal splash, comprising: the welding gun comprises a welding gun body 1 and an adjusting nozzle 2 fixed on the welding gun body 1, wherein the adjusting nozzle 2 is provided with a plurality of opening adjusting pieces 3 in a circumferential sliding manner, and the opening adjusting pieces 3 are suitable for guiding protective gas in the welding gun body 1 to flow to the outer wall of the adjusting nozzle 2. According to the invention, the welding gun body 1 is a laser welding gun, a laser beam is suitable for generating in the welding gun body 1 towards the inside of the adjusting nozzle 2, the welding gun body 1 is suitable for welding metal by holding the welding gun body 1, the opening adjusting piece 3 is arranged, the protection gas sprayed to the metal from the end part of the adjusting nozzle 2 can be guided to flow to the outside of the adjusting nozzle 2 by the opening adjusting piece 3, the phenomenon that sputtering of metal vapor and liquid droplets corrodes the outside of the adjusting nozzle 2 in the welding process is avoided, and meanwhile, most of the protection gas is sprayed to the metal by the end part of the adjusting nozzle 2, so that sputtering of metal vapor and liquid droplets in the welding process does not pollute a focusing lens in the welding gun body 1. The outer wall of the regulating nozzle 2 is not polluted and radiated by sputtering of metal vapor and liquid droplets, so that the service life of the regulating nozzle 2 is prolonged.
In order to facilitate the welding of the metal, the conditioning nozzle 2 comprises: an inner sleeve 21 and an outer protection cylinder 22, wherein one end of the inner sleeve 21 is provided with a fixing thread matched with the welding gun body 1, and the inner sleeve 21 is fixed at the end part of the welding gun body 1 through threads; the end part of the inner sleeve 21 is provided with fixed threads, so that the adjusting nozzle 2 can be conveniently detached from the welding gun body 1, and a new adjusting nozzle 2 can be conveniently replaced; the outer protection cylinder 22 is slidably sleeved on the outer wall of one end of the inner sleeve 21, which is far away from the welding gun body 1; a sliding groove is formed in the inner wall of the outer protection cylinder 22 along the axial direction, a sliding block matched with the sliding groove is fixed on the outer wall of the inner sleeve 21, and the sliding block is suitable for sliding along the sliding groove; the arrangement of the sliding groove and the sliding block can prevent the outer protection cylinder 22 from rotating circumferentially relative to the inner sleeve 21, and meanwhile, when the outer protection cylinder 22 slides along the axial direction of the inner sleeve 21, the sliding stability of the outer protection cylinder 22 is improved. A plurality of first positioning holes 23 are formed in the inner sleeve 21 along the circumferential direction, and the first positioning holes 23 and the second positioning holes 24 are all formed in an inclined manner, namely, the first positioning holes 23 and the second positioning holes 24 form a certain inclined included angle with the horizontal plane; the opening degree adjusting member 3 is slidably disposed in the first positioning hole 23; the outer protection cylinder 22 is provided with a plurality of second positioning holes 24 along the circumferential direction, and one second positioning hole 24 corresponds to one first positioning hole 23; wherein the outer protection cylinder 22 is pushed inwards to be communicated with the first positioning hole 23 and the second positioning hole 24, and the opening degree adjusting piece 3 is suitable for sliding outwards from the first positioning hole 23 to the position that the opening degree adjusting piece 3 protrudes out of the outer wall of the outer protection cylinder 22. The outer protection cylinder 22 slides towards the direction of the welding gun body 1 until the first positioning hole 23 and the second positioning hole 24 are communicated, wherein the communication at the moment means that the axial leads of the first positioning hole 23 and the second positioning hole 24 are overlapped; the opening degree adjusting piece 3 is suitable for sliding towards the second positioning hole 24, and the outer wall of the opening degree adjusting piece 3 protrudes out of the outer wall of the outer protection cylinder 22; when the welding gun body 1 transmits the shielding gas to the end of the adjusting nozzle 2, the shielding gas is suitable for pushing the opening adjusting member 3, so that the movable end of the opening adjusting member 3 slides in the direction of the outer wall of the outer protecting cylinder 22, and therefore, part of the shielding gas is sprayed to the outer wall of the outer protecting cylinder 22 through the opening adjusting member 3, the inclined sliding cylinder 31 and the outer sealing disc 33 can guide the shielding gas to spray to the end of the adjusting nozzle 2, namely, spray towards the metal direction, and part of the shielding gas sprays to the outer wall of the outer protecting cylinder 22, so that the sputtering of metal vapor and liquid droplets can not sputter to the outer wall of the outer protecting cylinder 22 during welding, thereby playing the role of protecting the outer wall of the outer protecting cylinder 22, and prolonging the service life of the adjusting nozzle 2. In order to accommodate the 90-degree bend, two angle grooves 220 are symmetrically formed on the outer wall of the outer protection cylinder 22, and the two angle grooves 220 extend along the axial direction of the outer protection cylinder 22. The angle groove 220 is provided such that, when welding two metal plates of 90 degrees, the external corners of the two metal plates are adapted to be inserted into the angle groove 220, thereby improving the welding accuracy. The shielding gas in the present invention may be helium, argon or nitrogen.
In order to facilitate positioning of the welding wire, a positioning block 221 is fixed at the lower end of the outer wall of the outer protecting cylinder 22, a through hole 222 is formed in the positioning block 221, and the welding wire is suitable for passing through the through hole 222 to weld metal. The positioning block 221 is arranged, so that the welding wire can be limited and guided conveniently, the end part of the welding wire is contacted with laser emitted in the welding gun body 1, and metal can be welded better. The welding gun body 1 is hinged with a clamping block 10, the clamping block 10 is arranged below the positioning block 221, and the clamping block 10 is suitable for limiting welding wires. The arrangement of the clamping blocks 10 plays a role in guiding the welding wire to slide, the welding wire extends outwards from the inside of the welding wire reel, the moving direction of the welding wire is changed through the clamping blocks 10, the welding wire finally extends to the positioning blocks 221, the positioning blocks 221 and the clamping blocks 10 interact, and the welding wire is ensured to move towards the direction of a metal part stably.
Preferably, the first positioning hole 23 is inclined from the inner wall of the inner sleeve 21 to the outer wall, and the first positioning hole 23 is provided with a first sliding groove along the radial direction of the inner sleeve 21; the outer wall of the opening adjusting piece 3 is provided with a first sliding block matched with the first sliding groove; the opening degree adjusting member 3 is adapted to slide along the first positioning hole 23 in a direction toward the outer wall of the inner sleeve 21; a first compression spring is fixed in the first sliding groove, one end of the first compression spring is fixed on the inner side wall of the first sliding groove, and the other end of the first compression spring is fixed on the side wall of the first sliding block; wherein, the outer protection cylinder 22 is pushed inwards to be communicated with the first positioning hole 23 and the second positioning hole 24, namely, the outer protection cylinder 22 is pushed towards the direction of the welding gun body 1, and the first compression spring is suitable for pushing the opening degree adjusting piece 3 to slide outwards until the outer end of the opening degree adjusting piece 3 protrudes out of the outer wall of the outer protection cylinder 22.
In order to facilitate the guiding of the flow of the shielding gas outside the outer protective cylinder 22, the opening degree regulator 3 includes: a sliding cylinder 31, an inner sliding disk 32, an outer sealing disk 33 and a linkage rod 34, wherein the sliding cylinder 31 is hollow, and the outer diameter of the sliding cylinder 31 is smaller than the inner diameter of the first positioning hole 23 and the inner diameter of the second positioning hole 24; the outer end of the sliding cylinder 31 is provided with an inclined plane 310, and the outer sealing disk 33 covers the inclined plane 310 of the sliding cylinder 31; the outer sealing disk 33 is in sliding sealing with the first positioning hole 23 and the second positioning hole 24; the outer sealing disk 33 is matched with the first positioning hole 23 and the second positioning hole 24; the inner slide plate 32 is slidably disposed within the slide cylinder 31; one end of the linkage rod 34 is fixed on the inner sliding disc 32, and the other end of the linkage rod 34 is fixed on the outer sealing disc 33; wherein,,
pushing the outer protection cylinder 22 inwards to communicate with the first positioning hole 23 and the second positioning hole 24, at this time, pushing the sliding cylinder 31 to slide towards the second positioning hole 24 under the action of the elasticity of the first compression spring until the outer sealing disk 33 protrudes out of the outer protection cylinder 22; after the outer sealing disk 33 slides to protrude out of the outer wall of the outer protection cylinder 22, the protective gas in the welding gun body 1 flows towards the direction of the adjusting nozzle 2, and the protective gas is suitable for pushing the outer sealing disk 33 to slide outwards. And after the protective gas flows to the external direction of the outer protection cylinder 22 through the outer sealing disc 33, the metal vapor and the liquid droplets during welding can be prevented from being sputtered to the outer wall of the outer protection cylinder 22, so that the outer wall of the outer protection cylinder 22 is prevented from being corroded, and the service life of the outer protection cylinder 22 is prolonged.
In order to facilitate the protection gas to push the outer sealing plate 33 to slide, a plurality of air holes 320 are formed on the inner sliding plate 32, and the protection gas is suitable for penetrating the inner sliding plate 32 and pushing the outer sealing plate 33 to slide outwards. The outer sealing disk 33 and the second positioning hole 24 are sealed in a sliding manner, and the inner sleeve 21 and the outer protecting cylinder 22 are sealed in a sliding manner, namely, the protecting gas does not flow into the gap between the inner sleeve 21 and the outer protecting cylinder 22, when the first positioning hole 23 and the second positioning hole 24 are communicated, the protecting gas is suitable for pushing the outer sealing disk 33 to slide outwards, and when the protecting gas pushes the outer sealing disk 33 to slide outwards, the flow rate and the pressure of the protecting gas are higher than the elasticity of the second compression spring 312 to the inner sliding disk 32; a second sliding groove 311 is formed in the inner wall of the sliding cylinder 31, and the second sliding groove 311 extends along the axial direction of the sliding cylinder 31; a second sliding block matched with the second sliding groove 311 is fixed on the side wall of the inner sliding disc 32; a second compression spring 312 is disposed in the second sliding groove 311, one end of the second compression spring 312 is fixed on the second slider, and the other end of the second compression spring 312 is fixed on the side wall of the second sliding groove 311. And the second compression spring 312 is adapted to push the inner slide tray 32 to slide inward when the flow rate and pressure of the shielding gas are gradually reduced, thereby enabling the outer seal tray 33 to seal the second positioning hole 24.
Preferably, the inner diameter of the outer protection cylinder 22 near the end is gradually reduced, and when the outer protection cylinder 22 is slid to communicate with the first positioning hole 23 and the second positioning hole 24, the outer wall of the inner sleeve 21 abuts against the inner wall of the outer protection cylinder 22, and the lower end of the outer wall of the inner sleeve 21 is adapted to scrape the impurities on the inner wall of the outer protection cylinder 22.
An embodiment two, the present embodiment also provides a method for using a metal splash preventing handheld laser welder on the basis of the embodiment one, which includes the same specific structure as the embodiment one, and the specific method for using the metal splash preventing handheld laser welder is as follows:
a first button 11 and a second button 12 are respectively arranged on the welding gun body 1, and the first button 11 is suitable for controlling the shielding gas to spray outwards for air outlet; the second button 12 is adapted to control the laser to emit laser light; the first button 11 and the second button 12 are electrically connected with a laser welding system control box in the welding gun body through flexible cables;
the laser welding system control box is respectively provided with a first port for controlling the laser generator, a second port for controlling the shielding gas, a third port for controlling the wire feeder, a fourth port communicated with the man-machine interface, a fifth port communicated with the gun head button and a sixth power supply port. When the first button 11 on the welding gun body 1 is pressed, the control box opens the electromagnetic valve for controlling the on-off of the shielding gas through the second port, and the shielding gas is sprayed out from the gun head nozzle through the gas conveying pipeline. When the second button 12 on the welding gun body 1 is pressed, on the premise of meeting the light emitting condition, the control box enables the laser generator to emit laser through the first port, and simultaneously enables the wire feeder to start wire feeding through the third port; when the light emitting condition is not met, the control box enables the wire feeder to start wire feeding only through the third port, and then welding wire length adjustment can be performed.
The laser light emitted from the welding gun body 1 needs to meet the following conditions and conditions in sequence at the same time. The first step: the gun head is electrically communicated with the workpiece to be welded, and the second step is that: pressing the first button 11, the third step: the second button 12 is pressed. The control box stops the laser from emitting light through the first port as long as any one of the three conditions is not met in the welding process;
the welding wire extends outwards from the wire reel and moves towards the nozzle through the clamping block 10 until the welding wire passes through the positioning block 221; before the welding gun body 1 works, the protective gas needs to be conveyed into the welding gun body 1, flows into the welding gun body 1 through a gas conveying pipe and is sprayed outwards through the adjusting nozzle 2; sliding the outer protective cylinder 22 upwards until the first positioning hole 23 and the second positioning hole 24 are communicated, at which time the end of the inner sleeve 21 is adapted to clean the inner wall of the outer protective cylinder 22; the first compression spring is suitable for pushing the opening degree adjusting member 3 to slide outwards so that the outer wall of the opening degree adjusting member 3 protrudes out of the outer wall of the outer protection cylinder 22; when the protective gas is sprayed outwards along the inner wall of the inner sleeve 21, the protective gas is suitable for pushing the inner slide disc 32 and the outer seal disc 33 to slide outwards along the inner wall of the sliding cylinder 31, when the outer seal disc 33 is gradually far away from the outer protection cylinder 22, part of the protective gas in the inner sleeve 21 is limited by the outer seal disc 33 and flows towards the welded metal direction, so that the sputtering of metal vapor and liquid droplets to the outer wall of the outer protection cylinder 22 during welding is avoided, the sputtering corrosion of the outer wall of the outer protection cylinder 22 by the liquid droplets is avoided, and the service life of the regulating nozzle 2 is prolonged.
The components (components not illustrating specific structures) selected in the application are all common standard components or components known to those skilled in the art, and the structures and principles of the components are all known to those skilled in the art through technical manuals or through routine experimental methods. Moreover, the software programs referred to in the present application are all prior art, and the present application does not relate to any improvement of the software programs.
In the description of embodiments of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. The above-described apparatus embodiments are merely illustrative, for example, the division of the units is merely a logical function division, and there may be other manners of division in actual implementation, and for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some communication interface, device or unit indirect coupling or communication connection, which may be in electrical, mechanical or other form.
The units described as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A hand-held laser welder for preventing metal splatter, comprising:
the welding gun comprises a welding gun body (1) and an adjusting nozzle (2) fixed on the welding gun body (1), wherein the adjusting nozzle (2) is provided with a plurality of opening adjusting pieces (3) in a sliding manner along the circumferential direction, and the opening adjusting pieces (3) are suitable for guiding protective gas in the welding gun body (1) to flow to the outer wall of the adjusting nozzle (2);
the opening degree adjusting member (3) includes: the sliding cylinder (31), the inner sliding disc (32), the outer sealing disc (33) and the linkage rod (34), wherein the sliding cylinder (31) is hollow, and the outer diameter of the sliding cylinder (31) is smaller than the inner diameter of the first positioning hole (23) and the inner diameter of the second positioning hole (24);
the outer end of the sliding cylinder (31) is provided with an inclined plane (310), and the outer sealing disc (33) covers the inclined plane (310) of the sliding cylinder (31);
the outer sealing disc (33) is in sliding sealing with the first positioning hole (23) and the second positioning hole (24);
the inner slide disc (32) is slidably arranged in the slide cylinder (31);
one end of the linkage rod (34) is fixed on the inner sliding disc (32), and the other end of the linkage rod (34) is fixed on the outer sealing disc (33); wherein,,
after the outer sealing disk (33) slides to protrude out of the outer wall of the outer protection cylinder (22), the protective gas in the welding gun body (1) flows towards the direction of the adjusting nozzle (2), and the protective gas is suitable for pushing the outer sealing disk (33) to slide outwards.
2. A hand-held laser welder for preventing metal splatter as defined in claim 1,
the regulating nozzle (2) comprises: the welding gun comprises an inner sleeve (21) and an outer protection cylinder (22), wherein one end of the inner sleeve (21) is provided with a fixing thread matched with a welding gun body (1), and the inner sleeve (21) is fixed at the end part of the welding gun body (1) through the thread;
the outer protection cylinder (22) is slidably sleeved on the outer wall of one end, far away from the welding gun body (1), of the inner sleeve (21);
a plurality of first positioning holes (23) are formed in the inner sleeve (21) along the circumferential direction, and the opening adjusting piece (3) is slidably arranged in the first positioning holes (23);
the outer protection cylinder (22) is provided with a plurality of second positioning holes (24) along the circumferential direction, and one second positioning hole (24) corresponds to one first positioning hole (23); wherein,,
the outer protection cylinder (22) is pushed inwards to be communicated with the first positioning hole (23) and the second positioning hole (24), and the opening degree adjusting piece (3) is suitable for sliding outwards from the first positioning hole (23) to the position that the opening degree adjusting piece (3) protrudes out of the outer wall of the outer protection cylinder (22).
3. A hand-held laser welder for preventing metal splatter as defined in claim 2,
the first positioning hole (23) is obliquely arranged from the inner wall of the inner sleeve (21) to the outer wall, and a first sliding groove is formed in the first positioning hole (23) along the radial direction of the inner sleeve (21);
the outer wall of the opening adjusting piece (3) is provided with a first sliding block matched with the first sliding groove;
a first compression spring is fixed in the first sliding groove, one end of the first compression spring is fixed on the inner side wall of the first sliding groove, and the other end of the first compression spring is fixed on the side wall of the first sliding block; wherein,,
the outer protection cylinder (22) is pushed inwards to be communicated with the first positioning hole (23) and the second positioning hole (24), and the first compression spring is suitable for pushing the opening degree adjusting piece (3) to slide outwards.
4. A hand-held laser welder for preventing metal splatter as defined in claim 3,
the inner sliding disc (32) is provided with a plurality of air holes (320), and the protective gas is suitable for penetrating through the inner sliding disc (32) and pushing the outer sealing disc (33) to slide outwards.
5. A hand-held laser welder for preventing metal splatter as defined in claim 4,
a second sliding groove (311) is formed in the inner wall of the sliding cylinder (31), and the second sliding groove (311) extends along the axial direction of the sliding cylinder (31);
a second sliding block matched with the second sliding groove (311) is fixed on the side wall of the inner sliding disc (32);
the second sliding groove (311) is internally provided with a second compression spring (312), the second compression spring (312) is movably fixed on the second sliding block, and the other end of the second compression spring (312) is fixed on the side wall of the second sliding groove (311).
6. A hand-held laser welder for preventing metal splatter as defined in claim 5,
two angle grooves (220) are symmetrically formed in the outer wall of the outer protection cylinder (22), and the two angle grooves (220) extend along the axial direction of the outer protection cylinder (22).
7. A hand-held laser welder for preventing metal splatter as defined in claim 6,
a positioning block (221) is fixed at the lower end of the outer wall of the outer protection cylinder (22), a through hole is formed in the positioning block (221), and welding wires are suitable for penetrating through the through hole to weld metal.
8. A hand-held laser welder for preventing metal splatter as defined in claim 7,
the welding gun is characterized in that a clamping block (10) is hinged to the welding gun body (1), the clamping block (10) is arranged below the positioning block (221), and the clamping block (10) is suitable for limiting welding wires.
9. A hand-held laser welder for preventing metal splatter as defined in claim 8,
the inner diameter of the outer protection cylinder (22) close to the end part is gradually reduced, and when the outer protection cylinder (22) is slid to be communicated with the first positioning hole (23) and the second positioning hole (24), the inner sleeve (21) is suitable for cleaning the inner wall of the outer protection cylinder (22).
10. A method for using a hand-held laser welder for preventing metal splatter is characterized by comprising the hand-held laser welder for preventing metal splatter according to claim 9,
a first button (11) and a second button (12) are respectively arranged on the welding gun body (1), and the first button (11) is suitable for controlling the shielding gas to be sprayed outwards for air outlet; -said second button (12) is adapted to control the laser to emit laser light; the first button (11) and the second button (12) are electrically connected with a laser welding system control box in the welding gun body through flexible cables;
the laser welding system control box is respectively provided with a first port for controlling the laser generator, a second port for controlling the shielding gas, a third port for controlling the wire feeder, a fourth port communicated with the man-machine interface, a fifth port communicated with the gun head button and a sixth power supply port; when a first button (11) on the welding gun body (1) is pressed down, the control box opens an electromagnetic valve for controlling the on-off of the shielding gas through a second port, and the shielding gas is sprayed out of a gun head nozzle through a gas conveying pipeline; when a second button (12) on the welding gun body (1) is pressed, on the premise that the light emitting condition is met, the control box enables the laser generator to emit laser through the first port, and simultaneously enables the wire feeder to start wire feeding through the third port; when the light emitting condition is not fully met, the control box enables the wire feeder to start wire feeding only through the third port, and at the moment, the length of the welding wire can be adjusted;
the welding wire extends outwards from the wire reel and moves towards the nozzle through the clamping block (10) until the welding wire passes through the positioning block (221);
before the welding gun body (1) works, the protective gas needs to be conveyed into the welding gun body (1), flows into the welding gun body (1) through a gas conveying pipe and is sprayed outwards through the adjusting nozzle (2);
sliding the outer protection cylinder (22) upwards until the first positioning hole (23) and the second positioning hole (24) are communicated, wherein the end part of the inner sleeve (21) is suitable for cleaning the inner wall of the outer protection cylinder (22);
the first compression spring is suitable for pushing the opening degree adjusting piece (3) to slide outwards so that the outer wall of the opening degree adjusting piece (3) protrudes out of the outer wall of the outer protection cylinder (22);
when the protective gas is sprayed outwards along the inner wall of the inner sleeve (21), the protective gas is suitable for pushing the inner sliding disc (32) and the outer sealing disc (33) to slide outwards along the inner wall of the sliding cylinder (31), when the outer sealing disc (33) is gradually far away from the outer protection cylinder (22), part of the protective gas in the inner sleeve (21) is limited by the outer sealing disc (33) and flows towards the direction of the welded metal, so that the sputtering of metal vapor and liquid droplets to the outer wall of the outer protection cylinder (22) during welding is avoided, the sputtering corrosion of the outer wall of the outer protection cylinder (22) by the liquid droplets is avoided, and the service life of the adjusting nozzle (2) is prolonged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310552281.0A CN116275473B (en) | 2023-05-17 | 2023-05-17 | Handheld laser welding machine capable of preventing metal from splashing and use method |
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| CN202310552281.0A CN116275473B (en) | 2023-05-17 | 2023-05-17 | Handheld laser welding machine capable of preventing metal from splashing and use method |
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