CN113681132A - Gun head of welding gun - Google Patents
Gun head of welding gun Download PDFInfo
- Publication number
- CN113681132A CN113681132A CN202110524467.6A CN202110524467A CN113681132A CN 113681132 A CN113681132 A CN 113681132A CN 202110524467 A CN202110524467 A CN 202110524467A CN 113681132 A CN113681132 A CN 113681132A
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- China
- Prior art keywords
- welding
- protective sleeve
- feeding pipe
- scraper
- wire feeding
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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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
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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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
- B23K9/133—Means for feeding electrodes, e.g. drums, rolls, motors
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
The invention belongs to the technical field of welding guns, and particularly relates to a welding gun head which comprises a welding gun body, a wire feeding pipe, a conductive copper joint, a lantern ring and a protective sleeve; the top end of the welding gun body is fixedly connected with a wire feeding pipe, and an internal element of the welding gun body is electrically connected with an internal element of the wire feeding pipe; one end of the wire feeding pipe, which is positioned in the gun body of the welding gun, of the switch is fixedly connected with a conductive copper joint, the conductive copper joint is communicated with the wire feeding pipe, and a welding wire penetrates through the conductive copper joint from the wire feeding pipe to be discharged; when welding work finishes or long-time welding work, because the protective sheath rotates with the lantern ring to be connected, the staff rotates the protective sheath, and the sharp one end laminating protective sheath inner wall of scraper strikes off fine particle metal welding slag on the protective sheath inner wall fast, reduces the welding slag on the protective sheath internal surface and piles up too much influence that causes welding quality, increases the clean degree of protective sheath.
Description
Technical Field
The invention belongs to the technical field of welding guns, and particularly relates to a gun head of a welding gun.
Background
The welding torch refers to a part of a welding process where a welding operation is performed. The welding gun utilizes the high current of the welding machine, the heat generated by the high voltage is gathered at the welding gun terminal, the welding wire is melted, the melted welding wire permeates to the position needing welding, and the welded objects are firmly connected into a whole after being cooled. The welding gun is classified into a gas welding gun, an electric welding gun, a secondary arc welding and the like according to the structure.
One of the prior art discloses a welding gun head, for example, a chinese patent with application number CN2019108302892, which includes a welding nozzle, a protective sleeve, a connecting pipe and a handle, wherein the protective sleeve includes an upper sheath and a lower sheath; the upper sheath is provided with a cooling box for spraying splash-proof liquid, and a rotating shaft, a cam and an air bag are arranged in the cooling box; however, the technical scheme has the defects that the first annular magnet at the bottom of the upper sheath is opposite to the second annular magnet at the top of the lower sheath in magnetism, so that the two magnets can be closely adsorbed and simultaneously drive the fixedly connected upper sheath and the lower sheath to be matched and attached tightly, and welding slag in the protective sheath can be cleaned; in the welding process, the welding wire is automatically fed out through the wire feeding pipe, and the welding wire is melted by the high temperature of the electric arc to form molten drops which are dripped into a molten pool; carbon dioxide gas is sprayed out from the through hole through the gas inlet pipe in the wire feeding pipe and surrounds an electric arc generated between the welding wire and the weldment and a molten pool on the weldment; the carbon dioxide of high temperature has strong oxidizing property, make the carbon element oxidation in molten drop and the molten bath become a large amount of carbon monoxide gas, carbon monoxide gas is under the effect of electric arc high temperature, the volume sharply expands, produce local range and burst, thereby produce a large amount of fine particle splash metal, the protective sheath is near apart from the weldment when the welding, fine particle splash metal splashes into in the protective sheath, and solidify into fine particle metal welding slag at the protective sheath inner wall, the temperature of welding department is 6000 degrees centigrade to 8000 degrees centigrade, the demagnetization temperature of magnet is 750 degrees centigrade to 760 degrees centigrade, magnet is under the environment of 100 degrees centigrade, the magnet performance begins to descend, make magnet can't fasten the absorption to last sheath and lower sheath, lead to the unable sheath of laminating of scraper and lower sheath inner wall and strike off the welding slag.
In view of this, the present invention provides a torch head of a welding torch, which solves the above problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problem that the scraper is loosened and the inner wall of the protective sleeve is not cleanly scraped, the invention provides a welding gun head.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a welding gun head, which comprises a welding gun body, a wire feeding pipe, a conductive copper joint, a lantern ring and a protective sleeve, wherein the welding gun body is provided with a welding gun body; the top end of the welding gun body is fixedly connected with a wire feeding pipe, and an internal element of the welding gun body is electrically connected with an internal element of the wire feeding pipe; one end of the wire feeding pipe, which is positioned in the gun body of the welding gun, of the switch is fixedly connected with a conductive copper joint, the conductive copper joint is communicated with the wire feeding pipe, and a welding wire penetrates through the conductive copper joint from the wire feeding pipe to be discharged; the outer surface of one end, close to the conductive copper joint, of the wire feeding pipe is provided with an external thread, a lantern ring is sleeved at the position, located on the external thread, of the wire feeding pipe, and the inner surface of the lantern ring is connected with the outer surface of the wire feeding pipe through threads; the outer surface of one side of the lantern ring, which is far away from the wire feeding pipe, is provided with a first annular groove, and a protective sleeve is sleeved in the first annular groove and is rotationally connected with the annular ring; one end of the wire feeding pipe, which is positioned at the conductive copper joint, is symmetrically and fixedly connected with a group of scrapers, the scrapers are close to the inner wall of the protective sleeve, and the sharp side of each scraper is attached to the inner wall of the protective sleeve; and a group of through holes are symmetrically formed between the scraper and the conductive copper joint on the wire feeding pipe, and the through holes are communicated with a carbon dioxide inlet pipe in the wire feeding pipe.
When the welding wire is used, the conductive copper joint is electrified during welding, so that a welding wire in the conductive copper joint is electrified, the welding wire is in contact with a weldment, and an electric arc is generated between the welding wire and the weldment; the welding wire is automatically fed out through the wire feeding pipe, and the welding wire is melted by the high temperature of the electric arc to form molten drops which are dripped into a molten pool; carbon dioxide gas is sprayed out from the through hole through the gas inlet pipe in the wire feeding pipe and surrounds an electric arc generated between the welding wire and the weldment and a molten pool on the weldment; the high-temperature carbon dioxide has strong oxidizing property, so that carbon elements in molten drops and a molten pool are oxidized into a large amount of carbon monoxide gas, the volume of the carbon monoxide gas is rapidly expanded under the action of high temperature of an electric arc, a local range is burst, a large amount of fine-particle splashing metal is generated, the protective sleeve is close to a weldment during welding, the fine-particle splashing metal splashes into the protective sleeve, and the fine-particle splashing metal is solidified into fine-particle metal welding slag on the inner wall of the protective sleeve; when the welding work is finished or long-time welding work is carried out, the protective sleeve is rotationally connected with the lantern ring through the ball, a worker rotates the protective sleeve, the sharp end of the scraper is attached to the inner wall of the protective sleeve, fine-particle metal welding slag on the inner wall of the protective sleeve is quickly scraped, the influence of excessive accumulation of the welding slag on the inner surface of the protective sleeve on the welding quality is reduced, and the cleaning degree of the protective sleeve is increased; when taking off the protective sheath, because the lantern ring with send a pipe surface threaded connection, rotate the lantern ring and can take off the protective sheath, compare the protective sheath among the prior art and send a pipe mode of linking firmly, it is more convenient to dismantle.
Preferably, the section of the protective sleeve consists of a straight line a and an arc b, the straight line a is vertically connected with the sleeve ring, one end of the arc b is connected with one end of the straight line a far away from the sleeve ring, and the other end of the arc b is bent towards the axial direction of the conductive copper connector.
When the welding wire is used, in the welding process, carbon dioxide gas is sprayed out through the through holes to cool the conductive copper joint and the inner wall of the protective sleeve, and the gas flows through the inside of the protective sleeve and is sprayed to a weldment from one end of the protective sleeve, which is far away from the wire feeding pipe, so that an electric arc generated between the welding wire and the weldment and a molten pool on the weldment are surrounded; carbon dioxide gas spouts contact protective sheath inner wall from the through-hole in, because the protective sheath comprises sharp an and circular arc b, circular arc b part is the bending form in the protective sheath, have the guide effect to carbon dioxide gas, make from the guide effect of through-hole spun carbon dioxide gas through the protective sheath spout to the welding position of weldment, increase the guard action of carbon dioxide to welding position, avoid carbon dioxide gas from the interior blowout of protective sheath not leading, form gaseous turbulent effect, reduce the guard action of carbon dioxide to welding position, even burn out the weldment.
Preferably, the through hole comprises a first hole and a second hole, the first hole is close to the scraper, and the second hole is close to the conductive copper connector; the first hole is small in diameter at one end close to the scraper, large in diameter at one end far away from the scraper and inclined towards the scraper; the aperture of the second hole close to one end of the conductive copper joint is small, the aperture of the second hole far away from one end of the conductive copper joint is large, and the second hole inclines towards the conductive copper joint.
When the protective sleeve is used, in the welding process, the first hole and the second hole are arranged, so that when gas is sprayed out of the through hole, carbon dioxide gas in the first hole blows towards the scraper, welding slag scraped by the scraper is blown away in time, the cleaning degree in the protective sleeve is increased, the welding slag on the inner wall of the protective sleeve is prevented from being accumulated in the protective sleeve after being scraped by the scraper, and the welding slag is not cleaned for a long time to cause excessive accumulation, so that the welding quality is influenced; carbon dioxide gas in the second hole is blown to the conductive copper joint to cool the conductive copper joint, so that the cooling effect of the conductive copper joint is improved, and the phenomenon that the conductive copper joint is too high in temperature due to too long working time of the conductive copper joint is avoided, and the conductive copper joint is adhered with a welding wire; because the aperture that a hole and No. two holes are close to protective sheath one end is less than the aperture of keeping away from protective sheath one end for when carbon dioxide gas flows through a hole and No. two holes, produce the narrow tube effect, increase the carbon dioxide gas velocity of flow, thereby increase the clean degree in the protective sheath and the cooling effect of electrically conductive copper joint.
Preferably, the section of the scraper consists of an arc c, an arc d and a straight line e, and the arc c, the arc d and the arc e are connected in sequence; the arc c is attached to the inner surface of the protective sleeve, and the sharp end of the scraper is the joint of the arc c and the arc d.
When the scraper is used, when the scraper scrapes off welding slag on the inner wall of the protective sleeve, the joint of the arc c and the arc d in the scraper is in contact with the welding slag, the welding slag is shoveled from the inner wall of the protective sleeve, and the welding slag gradually tilts along one side of the arc d in the scraper until the scraper shovels the whole welding slag to one side of the arc d in the scraper, so that the working efficiency of the scraper is increased, and the cleaning degree of the scraper on the inner wall of the protective sleeve is increased; because one side of the arc d in the scraper is bent, carbon dioxide gas is sprayed out from the first hole and is blown to welding slag to be contacted with the scraper on one side under the guiding action of the arc d, the welding slag is cooled, and the solidification speed of the welding slag on the inner wall of the protective sleeve is increased, so that the scraping effect of the scraper on the solidified welding slag is increased, and the cleaning degree of the scraper on the inner wall of the protective sleeve is further increased; on the other hand, the welding slag scraped to the arc d is blown away, and the cleaning degree in the protective sleeve is increased.
Preferably, a groove is formed in one side of the arc d on the scraper, and the groove is far away from the inner wall of the protective sleeve; a rotating shaft is rotatably connected in the groove, and a group of supporting rods are uniformly and fixedly connected on the rotating shaft; one end of the support rod, which is far away from the rotating shaft, is fixedly connected with a first plate, and one end of the first plate, which is far away from the support rod, is contacted with the inner wall of the protective sleeve; and a torsion spring is sleeved between the adjacent supporting rods on the rotating shaft.
When the welding slag removing device is used, when the protective sleeve is rotated, through the matching between the scraper and the first plate, the inner wall of the protective sleeve rotates along one end, away from the scraper, of the first plate and one end, sharp, of the scraper, the first plate firstly contacts welding slag on the inner wall of the protective sleeve, and a part of welding slag easy to clean is removed, so that the working strength of the scraper is reduced, the working efficiency of the scraper is increased, and the cleaning degree of the inner wall of the protective sleeve is increased; after the welding slag is scraped by the scraper, the welding slag drops to the protective sheath bottom and drops, and owing to be provided with a number of board for a number of board separation some welding slag drop in the protective sheath bottom, prevent that the welding slag from piling up in the protective sheath bottom, lead to carbon dioxide gas can't blow off the welding slag from the protective sheath in.
Preferably, one end of the first plate, which is far away from the scraper, is fixedly connected with a grinding block, and the contact surface of the grinding block and the inner wall of the protective sleeve is an arc surface.
During the use, when rotating the protective sheath, protective sheath inner wall rotates along cambered surface and the sharp one end of scraper in the abrasive brick, when the welding slag solidifies and is difficult for cleaing away at the protective sheath inner wall, cambered surface contact welding slag in the abrasive brick, wear to the welding slag, because abrasive brick and protective sheath inner wall contact surface are the cambered surface, when the abrasive brick can't clear away the welding slag, the abrasive brick rotates to keeping away from protective sheath inner wall direction along the welding slag surface, make the abrasive brick cross the welding slag, the abrasive brick crosses behind the welding slag, drive the branch through the effect of torsional spring and rotate, branch drives a number plate and rotates, thereby drive the abrasive brick and rotate, re-contact protective sheath inner wall, reset, when preventing that a number plate from contacting the welding slag that is difficult for clearing up, lead to welding slag to block a number plate, cause the protective sheath can't rotate, increase the work efficiency of a number plate, thereby increase the clean degree in the protective sheath.
The invention has the following beneficial effects:
1. according to the welding gun head, through the matching between the protective sleeve and the sleeve ring, when the welding work is finished or the welding work is carried out for a long time, a worker rotates the protective sleeve, the sharp end of the scraper is attached to the inner wall of the protective sleeve, fine-particle metal welding slag on the inner wall of the protective sleeve is quickly scraped, the influence of excessive accumulation of the welding slag on the inner surface of the protective sleeve on the welding quality is reduced, and the cleaning degree of the protective sleeve is increased.
2. According to the welding gun head, the protective sleeve is arranged, carbon dioxide gas is sprayed out of the through hole to contact the inner wall of the protective sleeve, the protective sleeve is composed of the straight line a and the arc b, the arc b part in the protective sleeve is bent and has a guiding effect on the carbon dioxide gas, so that the carbon dioxide gas sprayed out of the through hole is sprayed to the welding position of a welding piece through the guiding effect of the protective sleeve, the protection effect of the carbon dioxide on the welding position is increased, the phenomenon that the carbon dioxide gas is not sprayed out of the protective sleeve to be guided is avoided, a gas turbulence effect is formed, the protection effect of the carbon dioxide on the welding position is reduced, and even the welding piece is burnt.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of a protective cover according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 3 at A;
in the figure: the welding gun comprises a welding gun body 1, a wire feeding pipe 2, external threads 21, a lantern ring 22, a first annular groove 23, a protective sleeve 24, a scraper 3, a groove 31, a rotating shaft 32, a support rod 33, a first plate 34, a torsion spring 35, a grinding block 36, a through hole 4, a first hole 41, a second hole 42 and a conductive copper joint 5.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 4, the torch head of the welding torch according to the present invention includes a torch body 1, a wire feeding tube 2, a conductive copper joint 5, a collar 22, and a protective sleeve 24; the top end of the welding gun body 1 is fixedly connected with a wire feeding pipe 2, and an internal element of the welding gun body 1 is electrically connected with an internal element of the wire feeding pipe 2; one end of the wire feeding pipe 2, which is positioned in the welding gun body 1, of a switch is fixedly connected with a conductive copper joint 5, the conductive copper joint 5 is communicated with the wire feeding pipe 2, and a welding wire penetrates through the conductive copper joint 5 from the wire feeding pipe 2 to be discharged; an external thread 21 is arranged on the outer surface of one end, close to the conductive copper joint 5, of the wire feeding pipe 2, a lantern ring 22 is sleeved at the position, located on the external thread 21, of the wire feeding pipe 2, and the inner surface of the lantern ring 22 is connected with the outer surface of the wire feeding pipe 2 through threads; the outer surface of one side of the lantern ring 22, which is far away from the wire feeding pipe 2, is provided with a first annular groove 23, a protective sleeve 24 is sleeved in the first annular groove 23, and the protective sleeve 24 is rotatably connected with the circular ring; one end of the wire feeding pipe 2, which is positioned at the conductive copper joint 5, is symmetrically and fixedly connected with a group of scrapers 3, the scrapers 3 are close to the inner wall of the protective sleeve 24, and the sharp side of each scraper 3 is attached to the inner wall of the protective sleeve 24; and a group of through holes 4 are symmetrically formed between the scraper 3 and the conductive copper joint 5 on the wire feeding pipe 2, and the through holes 4 are communicated with a carbon dioxide air inlet pipe in the wire feeding pipe 2.
When the welding wire is used, during welding, the conductive copper joint 5 is electrified, so that a welding wire in the conductive copper joint 5 is electrified, the welding wire is in contact with a weldment, and an electric arc is generated between the welding wire and the weldment; the welding wire is automatically fed out through the wire feeding pipe 2, and the welding wire is melted by the high temperature of the electric arc to form molten drops which are dripped into a molten pool; carbon dioxide gas is sprayed out from the through hole 4 through the gas inlet pipe in the wire feeding pipe 2 and surrounds an electric arc generated between the welding wire and the weldment and a molten pool on the weldment; the high-temperature carbon dioxide has strong oxidizing property, so that carbon elements in molten drops and a molten pool are oxidized into a large amount of carbon monoxide gas, the volume of the carbon monoxide gas is rapidly expanded under the action of high temperature of an electric arc, a local range is burst, a large amount of fine-particle spattered metal is generated, the protective sleeve 24 is close to a weldment during welding, the fine-particle spattered metal is spattered into the protective sleeve 24, and the fine-particle metal is solidified into fine-particle metal welding slag on the inner wall of the protective sleeve 24; when the welding work is finished or long-time welding work is carried out, because the protective sleeve 24 is rotationally connected with the lantern ring 22, a worker rotates the protective sleeve 24, the sharp end of the scraper 3 is attached to the inner wall of the protective sleeve 24, fine-particle metal welding slag on the inner wall of the protective sleeve 24 is quickly scraped, the influence of excessive accumulation of the welding slag on the inner surface of the protective sleeve 24 on the welding quality is reduced, and the cleaning degree of the protective sleeve 24 is increased; when taking off protective sheath 24, because lantern ring 22 and 2 surface threaded connection of sending a silk pipe, rotate lantern ring 22 and can take off protective sheath 24, compare the protective sheath 24 among the prior art and send a silk pipe 2 mode of linking firmly, it is more convenient to dismantle.
In one embodiment of the present invention, the section of the protective sleeve 24 is composed of a straight line a and an arc b, the straight line a is perpendicularly connected with the collar 22, one end of the arc b is connected with one end of the straight line a far away from the collar 22, and the other end of the arc b is bent towards the axial direction of the conductive copper contact 5.
When the welding device is used, in the welding process, carbon dioxide gas is sprayed out through the through hole 4 to cool the conductive copper joint 5 and the inner wall of the protective sleeve 24, and the gas flows through the inside of the protective sleeve 24 and is sprayed to a weldment from one end of the protective sleeve 24 far away from the wire feeding pipe 2 to surround an electric arc generated between a welding wire and the weldment and a molten pool on the weldment; carbon dioxide gas is from spouting contact protection cover 24 inner wall in the through-hole 4, because protection cover 24 comprises sharp a and circular arc b, circular arc b part is the bending form in the protection cover 24, have the guide effect to carbon dioxide gas, make from the guide effect of through-hole 4 internal blowout carbon dioxide gas through protection cover 24 spout to the welding position of weldment, increase the guard action of carbon dioxide to the welding position, avoid carbon dioxide gas not to have the direction from spouting in the protection cover 24, form gaseous turbulent effect, reduce the guard action of carbon dioxide to the welding position, even burn and damage the weldment.
As an embodiment of the present invention, the through hole 4 includes a first hole 41 and a second hole 42, and the first hole 41 is close to the scraper 3, and the second hole 42 is close to the conductive copper joint 5; the aperture of the first hole 41 close to one end of the scraper 3 is small, the aperture of the first hole 41 far away from one end of the scraper 3 is large, and the first hole 41 inclines towards the scraper 3; the aperture of the second hole 42 near the conductive copper joint 5 is small, the aperture of the second hole 42 far away from the conductive copper joint 5 is large, and the second hole 42 inclines towards the conductive copper joint 5.
When the welding device is used, in the welding process, the first hole 41 and the second hole 42 are arranged, so that when gas is sprayed out of the through hole 4, carbon dioxide gas in the first hole 41 is blown to the scraper 3, welding slag scraped by the scraper 3 is blown away in time, the cleaning degree in the protective sleeve 24 is increased, and the welding slag on the inner wall of the protective sleeve 24 is prevented from being accumulated in the protective sleeve 24 after being scraped by the scraper 3, so that excessive accumulation caused by long-time non-cleaning is avoided, and the welding quality is influenced; the carbon dioxide gas in the second hole 42 is blown to the conductive copper joint 5 to cool the conductive copper joint 5, so that the cooling effect of the conductive copper joint 5 is improved, and the phenomenon that the conductive copper joint 5 is too high in temperature due to too long working time of the conductive copper joint 5 is avoided, and the conductive copper joint 5 is adhered with a welding wire; because the aperture of the first hole 41 and the second hole 42 close to one end of the protective sleeve 24 is smaller than the aperture far away from one end of the protective sleeve 24, when carbon dioxide gas flows through the first hole 41 and the second hole 42, a narrow tube effect is generated, the flow rate of the carbon dioxide gas is increased, and the cleaning degree in the protective sleeve 24 and the cooling effect of the conductive copper joint 5 are increased.
As an embodiment of the present invention, the cross section of the scraper 3 is composed of an arc c, an arc d and a straight line e, and the connection order is the arc c, the arc d and the arc e; the arc c is attached to the inner surface of the protective sleeve 24, and the sharp end of the scraper 3 is the joint of the arc c and the arc d.
When the welding slag scraper is used, when the scraper 3 scrapes the welding slag on the inner wall of the protective sleeve 24, the joint of the arc c and the arc d in the scraper 3 contacts the welding slag, the welding slag is shoveled from the inner wall of the protective sleeve 24, the welding slag gradually tilts along one side of the arc d in the scraper 3 until the whole welding slag is shoveled to one side of the arc d in the scraper 3 by the scraper 3, the working efficiency of the scraper 3 is increased, and therefore the cleaning degree of the scraper 3 on the inner wall of the protective sleeve 24 is increased; because one side of the arc d in the scraper 3 is bent, carbon dioxide gas is sprayed out from the first hole 41, and is blown to welding slag to be contacted with the scraper 3 on one side under the guiding action of the arc d, so that the welding slag is cooled, the solidification speed of the welding slag on the inner wall of the protective sleeve 24 is increased, the scraping effect of the scraper 3 on the solidified welding slag is increased, and the cleaning degree of the scraper 3 on the inner wall of the protective sleeve 24 is further increased; on the other hand, the welding slag scraped to the arc d is blown away, and the cleaning degree in the protective sleeve 24 is increased.
As an embodiment of the present invention, a groove 31 is formed on one side of the arc d of the scraper 3, and the groove 31 is far away from the inner wall of the protective sheath 24; a rotating shaft 32 is rotatably connected in the groove 31, and a group of supporting rods 33 are uniformly fixedly connected on the rotating shaft 32; one end of the support rod 33, which is far away from the rotating shaft 32, is fixedly connected with a plate 34, and one end of the plate 34, which is far away from the support rod 33, is in contact with the inner wall of the protective sleeve 24; a torsion spring 35 is sleeved between the adjacent support rods 33 on the rotating shaft 32.
When the welding slag removing device is used, when the protective sleeve 24 is rotated, through the matching between the scraper 3 and the first plate 34, the inner wall of the protective sleeve 24 rotates along one end, away from the scraper 3, of the first plate 34 and one end, sharp, of the scraper 3, the first plate 34 firstly contacts welding slag on the inner wall of the protective sleeve 24, and a part of welding slag easy to clean is removed, so that the working strength of the scraper 3 is reduced, the working efficiency of the scraper 3 is increased, and the cleaning degree on the inner wall of the protective sleeve 24 is increased; after the welding slag is scraped off by the scraper 3, the welding slag falls off and drops to the bottom of the protective sleeve 24, and the welding slag falls off at the bottom of the protective sleeve 24 due to the fact that the plate 34 is arranged, so that a part of welding slag separated by the plate 34 falls off at the bottom of the protective sleeve 24, the welding slag is prevented from being accumulated at the bottom of the protective sleeve 24, and carbon dioxide gas is led to blow the welding slag out of the protective sleeve 24.
As an embodiment of the invention, the end of the first plate 34 away from the scraper 3 is fixedly connected with a grinding block 36, and the contact surface of the grinding block 36 and the inner wall of the protective sleeve 24 is a cambered surface.
When the welding slag cleaning device is used, when the protective sleeve 24 is rotated, the inner wall of the protective sleeve 24 rotates along the cambered surface in the grinding block 36 and the sharp end of the scraper 3, when the welding slag is solidified on the inner wall of the protective sleeve 24 and is not easy to clean, the cambered surface in the grinding block 36 contacts the welding slag to wear the welding slag, because the contact surface between the grinding block 36 and the inner wall of the protective sleeve 24 is the cambered surface, when the grinding block 36 cannot clean the welding slag, the grinding block 36 rotates along the surface of the welding slag in the direction away from the inner wall of the protective sleeve 24, so that the grinding block 36 crosses the welding slag, after the grinding block 36 crosses the welding slag, the strut 33 is driven to rotate through the action of the torsion spring 35, the strut 33 drives the number plate 34 to rotate, thereby driving the grinding block 36 to rotate, to re-contact the inner wall of the protective sleeve 24 to reset, and when one plate 34 contacts the welding slag, the welding slag is prevented from clamping one plate 34, so that the protective sleeve 24 cannot rotate, and the working efficiency of the number plate 34 is increased, thereby increasing the degree of cleaning within the protective sleeve 24.
The specific working process is as follows:
during welding, the conductive copper joint 5 is electrified, so that a welding wire in the conductive copper joint 5 is electrified, the welding wire is in contact with a weldment, and an electric arc is generated between the welding wire and the weldment; the welding wire is automatically fed out through the wire feeding pipe 2, and the welding wire is melted by the high temperature of the electric arc to form molten drops which are dripped into a molten pool; carbon dioxide gas is sprayed out from the through hole 4 through the gas inlet pipe in the wire feeding pipe 2 and surrounds an electric arc generated between the welding wire and the weldment and a molten pool on the weldment; the high-temperature carbon dioxide has strong oxidizing property, so that carbon elements in molten drops and a molten pool are oxidized into a large amount of carbon monoxide gas, the volume of the carbon monoxide gas is rapidly expanded under the action of high temperature of an electric arc, a local range is burst, a large amount of fine-particle spattered metal is generated, the protective sleeve 24 is close to a weldment during welding, the fine-particle spattered metal is spattered into the protective sleeve 24, and the fine-particle metal is solidified into fine-particle metal welding slag on the inner wall of the protective sleeve 24; when the welding work is finished or long-time welding work is carried out, a worker rotates the protective sleeve 24, the sharp end of the scraper 3 is attached to the inner wall of the protective sleeve 24, and fine particle metal welding slag on the inner wall of the protective sleeve 24 is quickly scraped; the carbon dioxide gas is sprayed out from the through hole 4 to contact the inner wall of the protective sleeve 24, and the protective sleeve 24 consists of a straight line a and an arc b, so that the arc b part in the protective sleeve 24 is bent and has a guiding effect on the carbon dioxide gas, and the carbon dioxide gas sprayed out from the through hole 4 is sprayed to the welding position of the weldment through the guiding effect of the protective sleeve 24; when the gas is sprayed out of the through hole 4, the carbon dioxide gas in the first hole 41 is blown to the scraper 3, so that the welding slag scraped by the scraper 3 is blown away in time; the joint of the arc c and the arc d in the scraper 3 contacts the welding slag, the welding slag is shoveled from the inner wall of the protective sleeve 24, and the welding slag gradually tilts along one side of the arc d in the scraper 3 until the scraper 3 shovels the whole welding slag to one side of the arc d in the scraper 3; carbon dioxide gas is sprayed out from the first hole 41, and is blown to welding slag to be contacted with the scraper 3 on one side under the guiding action of the arc d, so that the welding slag is cooled; on the other hand, the welding slag scraped to the arc d is blown away; the inner wall of the protective sleeve 24 rotates along one end of the first plate 34 far away from the scraper 3 and one end of the scraper 3 sharp, and the first plate 34 firstly contacts welding slag on the inner wall of the protective sleeve 24 to remove a part of welding slag easy to clean; the inner wall of the protective sleeve 24 rotates along the cambered surface in the grinding block 36 and the sharp end of the scraper 3, when the welding slag is solidified on the inner wall of the protective sleeve 24 and is not easy to clean, the cambered surface in the grinding block 36 contacts the welding slag, the welding slag is abraded, because the contact surface of the grinding block 36 and the inner wall of the protective sleeve 24 is a cambered surface, when the grinding block 36 can not remove the welding slag, the grinding block 36 rotates along the surface of the welding slag to the direction far away from the inner wall of the protective sleeve 24, so that the grinding block 36 passes over the welding slag, and after the grinding block 36 passes over the welding slag, the torsion spring 35 extends to drive the support rod 33 to rotate, the support rod 33 drives the first plate 34 to rotate, thereby driving the grinding block 36 to rotate and contact the inner wall of the protective sleeve 24 again for resetting, preventing the first plate 34 from contacting the welding slag which is difficult to clean, the welding slag is caused to clamp the first plate 34, so that the protective sleeve 24 cannot rotate, the working efficiency of the first plate 34 is increased, and the cleaning degree in the protective sleeve 24 is increased.
The front, the back, the left, the right, the upper and the lower are all based on the figures in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A welding gun head is characterized in that: comprises a welding gun body (1), a wire feeding pipe (2), a conductive copper joint (5), a lantern ring (22) and a protective sleeve (24); the top end of the welding gun body (1) is fixedly connected with a wire feeding pipe (2), and an internal element of the welding gun body (1) is electrically connected with an internal element of the wire feeding pipe (2); one end of the wire feeding pipe (2), which is positioned in the welding gun body (1), of a switch is fixedly connected with a conductive copper joint (5), the conductive copper joint (5) is communicated with the wire feeding pipe (2), and a welding wire penetrates through the conductive copper joint (5) from the wire feeding pipe (2) and is discharged; an external thread (21) is arranged on the outer surface of one end, close to the conductive copper joint (5), of the wire feeding pipe (2), a lantern ring (22) is sleeved at the position, located on the external thread (21), of the wire feeding pipe (2), and the inner surface of the lantern ring (22) is in threaded connection with the outer surface of the wire feeding pipe (2); the outer surface of one side, away from the wire feeding pipe (2), of the lantern ring (22) is provided with a first annular groove (23), a protective sleeve (24) is sleeved in the first annular groove (23), and the protective sleeve (24) is rotatably connected with the annular ring; one end of the wire feeding pipe (2) positioned at the conductive copper joint (5) is symmetrically and fixedly connected with a group of scrapers (3), the scrapers (3) are close to the inner wall of the protective sleeve (24), and the sharp side of each scraper (3) is attached to the inner wall of the protective sleeve (24); a group of through holes (4) are symmetrically formed between the scraper (3) and the conductive copper joint (5) on the wire feeding pipe (2), and the through holes (4) are communicated with a carbon dioxide air inlet pipe in the wire feeding pipe (2).
2. A torch head according to claim 1, wherein: the cross section of the protective sleeve (24) is composed of a straight line a and an arc b, the straight line a is vertically connected with the lantern ring (22), one end of the arc b is connected with one end, far away from the lantern ring (22), of the straight line a, and the other end of the arc b is bent towards the axis direction of the conductive copper connector (5).
3. A torch head according to claim 2, wherein: the through hole (4) comprises a first hole (41) and a second hole (42), the first hole (41) is close to the scraper (3), and the second hole (42) is close to the conductive copper joint (5); the aperture of one end, close to the scraper (3), of the first hole (41) is small, the aperture of one end, far away from the scraper (3), of the first hole (41) is large, and the first hole (41) is inclined towards the scraper (3); the aperture of the second hole (42) close to one end of the conductive copper joint (5) is small, the aperture of the second hole (42) far away from one end of the conductive copper joint (5) is large, and the second hole (42) inclines towards the conductive copper joint (5).
4. A torch head according to claim 3, wherein: the section of the scraper (3) consists of an arc c, an arc d and a straight line e, and the arc c, the arc d and the arc e are connected in sequence; the arc c is attached to the inner surface of the protective sleeve (24), and the sharp end of the scraper (3) is the joint of the arc c and the arc d.
5. A torch head according to claim 4, wherein: a groove (31) is formed in one side of the arc d on the scraper (3), and the groove (31) is far away from the inner wall of the protective sleeve (24); a rotating shaft (32) is rotatably connected in the groove (31), and a group of supporting rods (33) are uniformly and fixedly connected on the rotating shaft (32); one end of the support rod (33) far away from the rotating shaft (32) is fixedly connected with a plate (34), and one end of the plate (34) far away from the support rod (33) is contacted with the inner wall of the protective sleeve (24); and a torsion spring (35) is sleeved between the adjacent support rods (33) on the rotating shaft (32).
6. A torch head according to claim 5, wherein: one end of the first plate (34) far away from the scraper (3) is fixedly connected with a grinding block (36), and the contact surface of the grinding block (36) and the inner wall of the protective sleeve (24) is an arc surface.
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|---|---|---|---|
| CN202110524467.6A CN113681132B (en) | 2021-05-13 | 2021-05-13 | Gun head of welding gun |
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| CN202110524467.6A CN113681132B (en) | 2021-05-13 | 2021-05-13 | Gun head of welding gun |
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| CN113681132B CN113681132B (en) | 2022-12-09 |
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| CN112427782A (en) * | 2020-11-13 | 2021-03-02 | 唐山松下产业机器有限公司 | Gas shielded welding gun for consumable electrode |
| CN112719541A (en) * | 2020-12-23 | 2021-04-30 | 南京中科煜宸激光技术有限公司 | Protective gas nozzle for electric arc welding and cleaning method thereof |
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| CN1104576A (en) * | 1993-10-28 | 1995-07-05 | 小原株式会社 | Cutter holding device of apparatus for repairing welding nozzle |
| JP2003001425A (en) * | 2001-04-18 | 2003-01-08 | Daihen Corp | Semi-automatic spatter removing device |
| CN202224815U (en) * | 2011-08-05 | 2012-05-23 | 烟台鲁宝有色合金有限公司 | High temperature resistant metal inertia gas automatic welding gun |
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| CN113681132B (en) | 2022-12-09 |
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Effective date of registration: 20221115 Address after: 224700 plant 10, zhizaogu, 5D, Zhongxin Road, Jiading Park, high tech Zone, Jianhu County, Yancheng City, Jiangsu Province Applicant after: Yancheng Hexin Intelligent Equipment Co.,Ltd. Address before: 233600 Room 302, building 3, southwest harmonious home, the intersection of East Ring Road and Ziguang Avenue, Woyang County, Bozhou City, Anhui Province Applicant before: Li Pangjun |
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