CN218225035U - Heavy-duty welding gun - Google Patents
Heavy-duty welding gun Download PDFInfo
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- CN218225035U CN218225035U CN202222093671.XU CN202222093671U CN218225035U CN 218225035 U CN218225035 U CN 218225035U CN 202222093671 U CN202222093671 U CN 202222093671U CN 218225035 U CN218225035 U CN 218225035U
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Abstract
The utility model relates to a heavy-duty welding gun, which comprises a conductive nozzle, a conductive nozzle seat, a gun neck tube, a gun neck seat, a water cooling jacket and a nozzle seat; the wire inlet end of the conductive nozzle is inserted in the gun neck tube, and the gun neck seat is sleeved on the gun neck tube; a first water inlet channel and a first water outlet channel are arranged between the gun neck seat and the gun neck tube, a first annular diversion cavity is arranged at the end, close to the conductive nozzle, of the first water inlet channel, a second water inlet channel and a second water outlet channel are arranged on the nozzle seat, and a second annular diversion cavity is arranged at the end, close to the conductive nozzle, of the nozzle seat; the first annular flow guide cavity and the second annular flow guide cavity are arranged around the contact nozzle; the inside of the gun neck pipe is provided with a wire feeding hose for feeding welding wires, the wire feeding end of the contact tube is provided with a clamping portion, and the clamping portion is provided with a hose connector for ensuring the stability of the welding wires. The device can carry out great axial degree of encircleing to the contact tube to this heat conductivility that increases contact tube and contact tube seat, thereby ensure welding operation's normal clear, guarantee the life of parts such as contact tube.
Description
Technical Field
The utility model relates to a welder technical field, concretely relates to heavy load type welder.
Background
In the welding industry, gas metal arc welding (i.e., MIG/MAG welding) is a welding mode widely applied, and with the continuous increase of welding requirements, various welding processes which break through conventional welding currents (60A-450A) are produced, such as heavy-current welding with a thick welding wire, double-welding-wire welding and the like. However, in the welding gun of this type, the high-temperature heat radiation that the electrically conductive nozzle part bore compares will be bigger under the conventional welding current, and the water-cooling passageway among the current traditional welding gun is often limited to set up on nozzle holder or inner tube (gun neck pipe), and still is connected with electrically conductive nozzle holder between nozzle holder and the electrically conductive nozzle, and the water-cooling passageway that sets up on the inner tube then has certain axial distance with electrically conductive nozzle, and the water-cooling passageway can't carry out effectual cooling to electrically conductive nozzle completely. For example, patent document CN 206216093U discloses an improved water-cooled welding gun, in which a water-cooled channel is disposed on an inner tube, the inner tube and a contact tip are in the same axial direction, and a contact tip seat is connected between the inner tube and the contact tip, the water-cooled channel is difficult to effectively cool the contact tip with high thermal radiation, especially for breaking through the conventional welding process, the risk of damage of the contact tip and the contact tip seat under an overload thermal load is greatly increased, and it is difficult to ensure safe and effective welding.
In addition, in the welding operation of breaking through the conventional current, the possible contact area between the relatively-thickened welding wire and the wire feeding channel in the running and conveying process is increased, and the stability of the welding wire feeding is also influenced to a certain extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a heavy load type welder to the solution has the difficult cooling of the conductive nozzle of great high temperature heat radiation and the welder fragile that causes, the poor problem of welding stability in heavy current welding operation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heavy-load welding gun comprises a conductive nozzle, a conductive nozzle seat, a gun neck tube, a gun neck seat, a water cooling jacket and a nozzle seat;
the wire inlet end of the conductive nozzle is inserted in the gun neck tube in a rotation stopping manner, the gun neck seat is sleeved on the gun neck tube, and the conductive nozzle seat is sleeved at the joint of the gun neck seat and the conductive nozzle; one end of the conductive nozzle base is rotatably arranged on the gun neck base, and the other end of the conductive nozzle base is mutually clamped with the conductive nozzle base;
the water cooling sleeve is sleeved on the gun neck seat, and the nozzle seat is sleeved on the water cooling sleeve; a first water inlet channel and a first water outlet channel are arranged between the gun neck seat and the gun neck tube, a first annular flow guide cavity is arranged at the end, close to the conductive nozzle, of the first water inlet channel, and the first water inlet channel and the first water outlet channel are both communicated with the first annular flow guide cavity;
a second water inlet channel and a second water outlet channel are arranged on the nozzle seat, a second annular diversion cavity is arranged at the end, close to the conductive nozzle, of the nozzle seat, and the second water inlet channel and the second water outlet channel are communicated with each other through the second annular diversion cavity;
the first water inlet channel is communicated with the second water inlet channel; the first water outlet channel is communicated with the second water outlet channel;
the first annular flow guide cavity and the second annular flow guide cavity are arranged around the contact nozzle;
the welding gun is characterized in that a wire feeding hose for conveying welding wires is arranged inside the gun neck tube, a clamping portion is arranged at the wire feeding end of the contact tube, and a hose joint for ensuring the stability of the welding wires is arranged on the clamping portion.
Furthermore, a first air outlet is formed in the gun neck tube, and a second air outlet is formed in the conductive nozzle seat; and protective gas sequentially flows through the gun neck pipe, the hose joint, the first air outlet and the second air outlet and is finally sprayed out from the space between the nozzle seat and the conductive nozzle.
Furthermore, four first air outlets are arranged on the gun neck pipe at intervals in the circumferential direction; and four second air outlets are formed in the contact tube at intervals in the circumferential direction.
Furthermore, a clamping groove is arranged on the contact tube; and the gun neck tube is radially provided with a positioning pin, and the positioning pin is inserted in the clamping groove.
Furthermore, a first water inlet hole is formed in the gun neck seat corresponding to the first water inlet channel, and a first water outlet hole is formed in the gun neck seat corresponding to the first water outlet channel; and a second water inlet hole is formed on the water cooling sleeve corresponding to the first water inlet channel, and a second water outlet hole is formed on the water cooling sleeve corresponding to the second water outlet channel.
Furthermore, the clamping part is a clamping column, and one end of the hose connector is in inserted fit with the clamping column; the wire feeding hose is spirally arranged at the other end of the hose connector.
Furthermore, the hose connector is cylindrical, and a plurality of supporting strips are arranged on the outer edge of the hose connector at intervals in the circumferential direction; the support bar is mutually abutted with the inner wall of the gun neck seat.
Further, the welding gun further comprises a nozzle, and the nozzle is arranged on the nozzle seat in a rotating mode.
Furthermore, a first sealing groove is formed in the inner circle of the water cooling sleeve, and a first sealing ring is arranged in the first sealing groove; and a second sealing groove is formed in the outer circle of the water cooling sleeve, and a second sealing ring is arranged in the second sealing groove.
The utility model has the advantages that:
the utility model discloses an in, first water inlet channel, first annular water conservancy diversion chamber, first water outlet channel forms a cooling water return circuit, and the rifle neck pipe that this return circuit depends on is direct and the cooperation of conductive nozzle, make this cooling water return circuit can cool off the conductive nozzle better, except that in addition, second water inlet channel has still been set up, second annular water conservancy diversion chamber, another cooling circuit that second water outlet channel formed, the nozzle block that this return circuit depends on does not have the restriction of the direct complex of axial with the conductive nozzle, so can carry out great axial degree of encircleing to the conductive nozzle, the nozzle block can effectively reduce the temperature of nozzle, because the nozzle directly encircles the outside at conductive nozzle and conductive nozzle seat, the cooling effect of conductive nozzle and conductive nozzle seat has been guaranteed indirectly to the cooling of nozzle, in order to ensure welding jobs's normal clear, guarantee the life of parts such as nozzle. In addition, the hose connector is arranged to ensure that welding wires in the hose smoothly enter a welding wire hole in the contact tube, and normal welding is prevented from being influenced due to the fact that the hose shakes or deviates to cause bending of the welding wires.
Drawings
FIG. 1 is a schematic view of the overall structure of the utility model;
FIG. 2 is a front view of the hose connector of the present invention;
figure 3 is a side view of the hose connector of the present invention.
Names corresponding to the marks in the figure:
1. the conductive nozzle, 10, the joint post, 11, the joint groove, 2, the conductive nozzle base, 20, the second gas outlet, 3, the gun neck pipe, 30, the first water inlet channel, 31, the first water outlet channel, 32, the first gas outlet, 33, the hose, 34, the first annular diversion cavity, 35, the locating pin, 4, the gun neck base, 40, the first water inlet, 41, the first water outlet, 5, the water cooling jacket, 50, the second water inlet, 51, the second water outlet, 52, the second seal groove, 53, the second seal ring, 54, the first seal groove, 55, the first seal ring, 6, the nozzle base, 60, the second water inlet channel, 61, the second water outlet channel, 62, the second annular diversion cavity, 7, the nozzle, 8, the hose connector, 9, the insulating sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
The embodiment of the utility model provides a:
as shown in fig. 1 to 3, a heavy-duty welding gun includes a conductive nozzle 1, a conductive nozzle seat 2, a neck tube 3, a neck seat 4, a water cooling jacket 5, and a nozzle seat 6.
In the embodiment, the feeding direction of the welding wire is arranged from right to left; hereinafter, the "filament inlet end" and the "tail" both represent the right end of the corresponding component, and the "filament outlet end" and the "head" both represent the left end of the corresponding component.
The wire inlet end of the conductive nozzle 1 is inserted in the gun neck tube 3 in a rotation stopping way, the gun neck seat 4 is sleeved on the gun neck tube 3, and the conductive nozzle seat 2 is sleeved at the joint of the gun neck seat 4 and the conductive nozzle 1; one end of the conductive nozzle base 2 is rotatably arranged on the gun neck base 4, and the other end is mutually clamped with the conductive nozzle base 2; the circumference is equipped with joint groove 11 on the right section periphery of contact tube 1, has radially set up the pinhole at the head of rifle neck 3, is equipped with locating pin 35 in the pinhole, and after contact tube 1 pegged graft in rifle neck 3, locating pin 35 will peg graft in joint groove 11 to this restriction contact tube 1 and the relative rotation of rifle neck 3.
The water cooling sleeve 5 is sleeved at the tail part of the gun neck seat 4, and the nozzle seat 6 is sleeved on the water cooling sleeve 5; a first water inlet channel 30 and a first water outlet channel 31 are arranged between the gun neck seat 4 and the gun neck tube 3, a first annular flow guide cavity 34 is arranged at the end, close to the conductive nozzle, of the first water inlet channel 30, and the first water inlet channel 30 and the first water outlet channel 31 are both communicated with the first annular flow guide cavity 34; the first water inlet channel 30 is formed by enclosing the inner wall of the gun neck seat 4, the outer wall of the gun neck pipe 3 and corresponding first rib plates, and the length direction of the first rib plates is consistent with the axial direction; the second water inlet channel 60 is formed by enclosing the inner wall of the gun neck seat 4, the outer wall of the gun neck tube 3 and corresponding first rib plates, and it should be particularly noted that the first water inlet channel 30 and the second water inlet channel 60 are symmetrically arranged at 180 degrees, and the number of the first rib plates is four, two of the first rib plates are used for enclosing the first water inlet channel 30, and the remaining two are used for enclosing the second water inlet channel 60; the first rib is preferably provided on the outer wall of the gun neck 3. The first annular diversion cavity 34 is preferably arranged at a position, which is deviated to the head, on the gun neck tube 3, and after cooling water enters the first annular diversion cavity 34 from the first water inlet channel 30, the right half section of the contact tube 1 can be maximally covered, so that the cooling effect on the contact tube 1 is fully ensured; the axial distance of the first annular diversion cavity 34 can be set according to the insertion depth of the gun neck 3 and the contact tip 1.
The first water inlet channel 30, the first annular diversion cavity 34 and the first water outlet channel 31 form a first water cooling loop.
A second water inlet channel 60 and a second water outlet channel 61 are arranged on the nozzle seat 6, a second annular flow guide cavity 62 is arranged at the end, close to the conductive nozzle, of the nozzle seat 6, and the second water inlet channel 60 and the second water outlet channel 61 are communicated with each other through the second annular flow guide cavity 62;
the first water inlet passage 30 and the second water inlet passage 60 are communicated with each other; the first outlet passage 31 and the second outlet passage 61 communicate with each other. Since the fit between the contact tube 1 and the neck tube 3 is axial, the degree of the contact tube 1 surrounded by the first water-cooling loop is limited to a certain extent, that is, the degree of the increase of the surrounding degree is determined based on the fit between the contact tube 1 and the neck tube 3, in order to further ensure the heat dissipation of the contact tube 1 in heavy-duty welding gun operation which breaks through conventional current (60A-450A), a second water inlet channel 60, a second annular diversion cavity 62 and a second water outlet channel 61 are specially arranged in the nozzle seat 6, specifically, the second water inlet channel 60 and the second water outlet channel 61 are arranged in the nozzle seat 6, the second water inlet channel 60 and the second water outlet channel 61 are symmetrically arranged at the same 180 degrees and are formed by auxiliary surrounding of a second rib plate, and the design of the second water inlet channel 60, the second water outlet channel 61 and the second annular diversion cavity 62 in the whole nozzle seat 6 can be formed by welding in a split manner. The second annular diversion cavity 62 is also in a state of relatively surrounding the contact nozzle 1, but different from the first annular diversion cavity 34, the nozzle seat 6 is not directly axially matched with the contact nozzle 1, so that the degree of the contact nozzle 1 surrounded by the second annular diversion cavity 62 is not influenced by the matching between the nozzle seat 6 and the contact nozzle 1, the second annular diversion cavity 62 can extend the axial distance thereof according to the actual situation to maximally surround the contact nozzle 1, the contact nozzle 1 with high-temperature heat radiation in the second annular diversion cavity can better dissipate heat, and meanwhile, a certain cooling effect can be directly played on the contact nozzle seat 2, and the normal operation of welding operation is ensured.
The second water inlet channel 60, the second annular diversion cavity 62 and the second water outlet channel 61 form a second water cooling loop.
The inside wire feeding hose 33 that is equipped with the welding wire of carrying of rifle neck 3, the end of sending a silk of contact tip 1 is equipped with joint portion, and in this embodiment, joint portion is joint post 10, and the grafting is equipped with the hose nipple 8 that is used for guaranteeing welding wire stability on the joint post 10. It should be noted that the clamping column 10 is not solid, and is provided with a circular hole communicated with the welding wire hole in the contact tip 1 for feeding the welding wire. Specifically, hose connector 8's left end cover is established on joint post 10, and hose 33 revolves to be established inside hose connector 8's right-hand member, and hose 33 in this embodiment is the spring, because spring and screw thread all design based on the helix, under specific screw tap, can be inside tapping and spring complex screw thread at hose connector 8's right-hand member to guarantee connection between them, in other embodiments, hose 33 and hose connector 8's cooperation also can adopt the tube press to carry out the crimping.
The outer edge of the hose connector 8 is cylindrical, four supporting bars are arranged on the outer edge of the hose connector 8 at intervals in the circumferential direction, the supporting bars of the mounted hose connector 8 abut against the inner wall of the gun neck tube 3, so that the concentric arrangement of the flexible hose 33 and the conductive nozzle 1 is ensured, the smooth circulation of protective gas is also ensured, and in other embodiments, the outer edge of the hose connector 8 can also be in a gear shape, a quincunx shape or a square shape.
The gun neck tube 3 is provided with four first air outlets 32, and the four first air outlets 32 are circumferentially arranged on the gun neck tube 3 at intervals; a second air outlet 20 is arranged on the conductive nozzle base 2; four second air outlets 20 are circumferentially spaced on the contact tube 1. The protective gas flows through the gun neck 3, the hose joint 8, the first air outlet 32 and the second air outlet 20 in sequence and is finally sprayed out from between the nozzle seat 6 and the contact nozzle 1. The welding gun also comprises a nozzle 7, wherein the nozzle 7 is spirally arranged at the left end of the nozzle seat 6; further, the shielding gas will be ejected from between the nozzle 7 and the contact tip 1.
A first water inlet hole 40 is formed on the circumferential surface, relatively close to the tail part, of the gun neck seat 4, corresponding to the first water inlet channel 30, and a first water outlet hole 41 is formed corresponding to the first water outlet channel 31; a second water inlet hole 50 is formed in the circumferential surface, close to the tail part relatively, of the water cooling jacket 5, corresponding to the first water inlet channel 30, and a second water outlet hole 51 is formed in the circumferential surface, close to the tail part relatively, of the water cooling jacket corresponding to the second water outlet channel 61; the first water inlet channel 30 is communicated with the second water inlet channel 60 through the first water inlet hole 40 and the second water inlet hole 50, and the first water outlet channel 31 is communicated with the second water outlet channel 61 through the first water outlet hole 41 and the second water outlet hole 51.
A first sealing groove 54 is formed in the inner circle of the water cooling sleeve 5, a first sealing ring 55 is arranged in the first sealing groove 54, and two groups of the first sealing grooves 54 and the first sealing rings 55 are arranged at left and right intervals and are respectively positioned at left and right sides of the second water inlet hole 50; a second sealing groove 52 is arranged on the excircle of the water cooling sleeve 5, and a second sealing ring 53 is arranged in the second sealing groove 52; two sets of the second sealing groove 52 and the second sealing ring 53 are arranged at left and right intervals and are respectively located at left and right sides of the second water outlet hole 51.
An insulating sleeve 9 is further arranged between the conductive nozzle base 2 and the nozzle base 6, and the insulating sleeve 9 is sleeved at the right end of the conductive nozzle base 2.
Claims (9)
1. A heavy-duty type welder which characterized in that: comprises a conductive nozzle, a conductive nozzle seat, a gun neck tube, a gun neck seat, a water cooling jacket and a nozzle seat;
the wire inlet end of the conductive nozzle is inserted in the gun neck tube in a rotation stopping manner, the gun neck seat is sleeved on the gun neck tube, and the conductive nozzle seat is sleeved at the joint of the gun neck seat and the conductive nozzle; one end of the conductive nozzle base is rotatably arranged on the gun neck base, and the other end of the conductive nozzle base is mutually clamped with the conductive nozzle base;
the water cooling sleeve is sleeved on the gun neck seat, and the nozzle seat is sleeved on the water cooling sleeve; a first water inlet channel and a first water outlet channel are arranged between the gun neck seat and the gun neck tube, a first annular flow guide cavity is arranged at the end, close to the conductive nozzle, of the first water inlet channel, and the first water inlet channel and the first water outlet channel are both communicated with the first annular flow guide cavity;
a second water inlet channel and a second water outlet channel are arranged on the nozzle seat, a second annular diversion cavity is arranged at the end, close to the conductive nozzle, of the nozzle seat, and the second water inlet channel and the second water outlet channel are communicated with each other through the second annular diversion cavity;
the first water inlet channel is communicated with the second water inlet channel; the first water outlet channel is communicated with the second water outlet channel;
the first annular flow guide cavity and the second annular flow guide cavity are arranged around the contact nozzle;
the welding gun is characterized in that a wire feeding hose for conveying welding wires is arranged inside the gun neck tube, a clamping portion is arranged at the wire feeding end of the contact tube, and a hose joint for ensuring the stability of the welding wires is arranged on the clamping portion.
2. The heavy-duty welding gun according to claim 1, wherein: a first air outlet is formed in the gun neck tube, and a second air outlet is formed in the conductive nozzle seat; and protective gas sequentially flows through the gun neck pipe, the hose joint, the first gas outlet and the second gas outlet and is finally sprayed out from between the nozzle seat and the conductive nozzle.
3. The heavy-duty welding gun according to claim 2, wherein: four first air outlets are arranged on the gun neck pipe at intervals in the circumferential direction; four second air outlets are arranged on the contact tube at intervals in the circumferential direction.
4. The heavy-duty welding gun according to claim 1, wherein: the contact tube is provided with a clamping groove; the gun neck tube is radially provided with a positioning pin, and the positioning pin is inserted into the clamping groove.
5. A heavy-duty welding gun according to claim 1, characterized in that: a first water inlet hole is formed in the gun neck seat corresponding to the first water inlet channel, and a first water outlet hole is formed in the gun neck seat corresponding to the first water outlet channel; and a second water inlet hole is formed in the water cooling sleeve corresponding to the first water inlet channel, and a second water outlet hole is formed in the water cooling sleeve corresponding to the second water outlet channel.
6. A heavy-duty welding gun according to claim 1, characterized in that: the clamping part is a clamping column, and one end of the hose connector is in inserted fit with the clamping column; the wire feeding hose is arranged at the other end of the hose connector in a rotating mode.
7. The heavy-duty welding gun according to claim 1, wherein: the hose connector is cylindrical, and a plurality of supporting strips are arranged on the outer edge of the hose connector at intervals in the circumferential direction; the support bar is mutually abutted with the inner wall of the gun neck seat.
8. The heavy-duty welding gun according to claim 1, wherein: the welding gun further comprises a nozzle which is arranged on the nozzle seat in a rotating mode.
9. The heavy-duty welding gun according to claim 1, wherein: a first sealing groove is formed in the inner circle of the water cooling sleeve, and a first sealing ring is arranged in the first sealing groove; and a second sealing groove is formed in the outer circle of the water cooling sleeve, and a second sealing ring is arranged in the second sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222093671.XU CN218225035U (en) | 2022-08-09 | 2022-08-09 | Heavy-duty welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222093671.XU CN218225035U (en) | 2022-08-09 | 2022-08-09 | Heavy-duty welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218225035U true CN218225035U (en) | 2023-01-06 |
Family
ID=84680743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222093671.XU Active CN218225035U (en) | 2022-08-09 | 2022-08-09 | Heavy-duty welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218225035U (en) |
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2022
- 2022-08-09 CN CN202222093671.XU patent/CN218225035U/en active Active
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