CN218694727U - Water cooling mechanism of handheld double-wire welding gun - Google Patents

Abstract

The utility model discloses a hand-held type double-wire welding gun's water cooling mechanism installs to the welder rifle body on, water cooling mechanism includes that can peg graft to the rifle neck mechanism on the welder rifle body, protrusion in the first inlet tube and the first wet return of the welder rifle body, rifle neck mechanism includes that two sets of nozzles and the same rifle neck of structure, cover establish the water-cooling guard shield in the two sets of nozzle outsides, connect the second inlet tube of first inlet tube and connect the second wet return of first wet return, second inlet tube and second wet return form first rivers return in water-cooling guard shield intercommunication. Adopt serial-type water pipe all the way to cool off two welder nozzles, carry out refrigerated effect under to the nozzle in the assurance, reduced the weight of welder structure, be convenient for the manual work and grip twin-wire welder and carry out welding operation. The periphery of the nozzle is cooled through the water-cooling shield, and the water-cooling effect is improved.

Description

Water cooling mechanism of handheld double-wire welding gun

Technical Field

The utility model belongs to the technical field of welding equipment, concretely relates to hand-held type twin-wire welder's water-cooling mechanism.

Background

With the increasing large-scale of modern industry, the application of medium plate and super thick plate welding structures is more and more extensive, and the traditional automatic welding method of thick plate joints has shown great limitation and inapplicability. The sharp increase of the groove area of the thick plate leads to the multiplied increase of the welding workload, low production efficiency, more consumed welding materials and high welding cost. And the heat input amount is large during welding, the heat affected zone is wide, the crystal grains are large, under the combined action of large restraint intensity of the thick plate and solidification shrinkage force of a large amount of filling metal, the welding joint has large residual stress and residual deformation, the mechanical property of the welding joint is low, and welding defects such as cracks are easy to generate. The double-wire welding gun is applied to mechanized thick plate welding due to the advantages of high welding speed, high welding wire deposition rate, good welding seam quality and the like.

When the twin-wire welding gun is used for welding operation, the temperature of a welding point is much higher than that of a common welding gun, and the common air cooling mode cannot meet the cooling requirement of the twin-wire welding gun, so that the twin-wire welding gun is cooled by adopting a water cooling mode. Most of the existing water cooling structures adopt two water pipes to cool two welding gun nozzles respectively, the structure is loose, the quality of a welding gun is increased, and the welding gun is not convenient to hold for welding operation.

SUMMERY OF THE UTILITY MODEL

To foretell not enough, the utility model provides a two silk welder's of hand-held type water-cooling mechanism adopts the serial-type water pipe all the way to cool off two welder nozzles, carries out refrigerated effect to the nozzle under guaranteeing, has reduced the weight of welder structure, and the manual work of being convenient for grips two silk welder and carries out welding operation. The adoption of the pluggable gun neck mechanism is helpful for replacing and maintaining the gun neck mechanism. The periphery of the nozzle is cooled through the water-cooling shield, and the water-cooling effect is improved.

The utility model discloses a realize through following technical scheme:

the utility model provides a hand-held type double-wire welding gun's water cooling mechanism, install to the welder rifle body on, water cooling mechanism is including pegging graft the rifle neck mechanism on the welder rifle body, protrusion in the first inlet tube and the first wet return of the welder rifle body, rifle neck mechanism includes two sets of nozzles and the same rifle neck of structure of being equipped with, the water-cooling guard shield in two sets of nozzle outsides is established to the cover, connect the second inlet tube of first inlet tube and the second wet return of connecting first wet return, second inlet tube and second wet return form first rivers return circuit at water-cooling guard shield in-connection, so that rivers cool off the nozzle through the water-cooling guard shield.

Further, the gun neck includes wire feeding pipe and outer protection pipe, and along the extending direction of wire feeding pipe, wire feeding pipe both sides protrusion has the strengthening rib of connecting the outer protection pipe, and the strengthening rib will send the clearance between wire feeding pipe and the outer protection pipe to be into water flow channel and return water runner, and the one end intercommunication that water flow channel and return water runner are close to the nozzle at the gun neck forms second rivers return circuit, and the second rivers return circuit that is located the gun neck is used for cooling the gun neck, improves the cooling effect to two silk welder.

Furthermore, the end part of the gun neck close to the welding gun body is provided with a water inlet hole communicated with the water inlet flow channel and a water return hole communicated with the water return flow channel, the gun neck mechanism is inserted into the welding gun body, the water inlet hole is communicated with a water inlet pipeline in the welding gun, the water return hole is communicated with the first water inlet pipe, the water inlet pipeline supplies water to the water inlet flow channel through the water inlet hole, and a water source flowing out of the water return flow channel enters the first water inlet pipe.

Further, 4 and all being located the strengthening rib below have been seted up to the inlet opening, and the return water hole is the same with the quantity of inlet opening and all is located the top of strengthening rib, and the inlet opening is the same with the size and the quantity in return water hole to guarantee that rivers normally flow in second rivers return circuit. The cross section that the inlet opening is located rifle neck department sets up with the cross section that the return water hole is located rifle neck department is crisscross to make the water source that the inlet opening got into flow into the water inlet runner, the water that the return water runner flows out is discharged through the return water hole.

Furthermore, the second water inlet pipe is provided with an inserting sleeve for connecting the first water inlet pipe; install the grafting cover that is used for connecting first wet return on the second wet return, the grafting cover can first inlet tube of high-speed joint and second inlet tube and first wet return and second wet return.

Furthermore, an O-shaped ring is arranged in the splicing sleeve, so that the water leakage phenomenon at the joint of the water pipe is avoided.

Furthermore, a stepped ring groove matched with the plug-in connector of the gun neck mechanism is arranged at the joint of the gun body of the welding gun and the gun neck mechanism, and the gun neck mechanism and the gun body of the welding gun are connected and fixed.

Further, the internal insulating layer that is equipped with of welder rifle prevents that the heat that the welding produced from scalding welder casing, helps the workman to hold the welder rifle body.

Drawings

FIG. 1 is a schematic connection diagram illustrating an exemplary embodiment of a water cooling mechanism for a handheld twin wire welding gun according to the present invention;

FIG. 2 is a cross-sectional view illustrating an exemplary embodiment of a water cooling mechanism of a hand-held twin wire welding gun according to the present invention;

FIG. 3 is a partially enlarged view of the portion A in FIG. 2;

FIG. 4 is a schematic connection diagram illustrating an exemplary embodiment of a split position of a water cooling mechanism of a handheld twin wire welding gun according to the present invention;

FIG. 5 is a schematic view showing a part B of FIG. 4;

fig. 6 is a schematic diagram illustrating an exemplary embodiment of a water cooling mechanism of a handheld twin-wire welding gun according to the present invention;

FIG. 7 is a partial enlarged view of the portion C in FIG. 6;

FIG. 8 is a schematic diagram illustrating another exemplary embodiment of a water cooling mechanism for a handheld twin wire welding gun according to the present invention;

FIG. 9 is a schematic view showing a partial enlargement at D in FIG. 8;

fig. 10 is a schematic diagram illustrating a sectional view of an exemplary embodiment of a water cooling mechanism of a handheld twin-wire welding gun according to the present invention;

fig. 11 is a schematic diagram illustrating a partial enlargement at E in fig. 10.

Reference numerals:

1. the welding gun comprises a welding gun body, 11, a stepped ring groove, 2, a gun neck mechanism, 21, a nozzle, 22, a gun neck, 221, a wire feeding pipe, 222, an outer protection pipe, 223, a reinforcing rib, 224, a water inlet flow channel, 225, a water return flow channel, 226, a water inlet hole, 227, a water return hole, 23, a water-cooling shield, 24, a second water inlet pipe, 25, a second water return pipe, 26, a plug-in sleeve, 3, a first water inlet pipe, 4 and a first water return pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 without creative work belong to the protection scope of the present invention.

It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are referred to the normal use state of the product, i.e. the traveling direction of the product, and should not be considered as limiting.

In addition, it should be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention include not only a change in position but also a movement in which a state changes without a relative change in position such as rotation or rolling.

Finally, it is noted that when an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 to 11, the water cooling mechanism of the handheld double-wire welding gun is installed on the welding gun body 1, the water cooling mechanism includes a gun neck mechanism 2 capable of being plugged onto the welding gun body 1, a first water inlet pipe 3 and a first water return pipe 4 protruding from the welding gun body 1, the gun neck mechanism 2 includes two sets of gun necks 22 having nozzles 21 and the same structure, a water cooling shield 23 sleeved outside the two sets of nozzles 21, a second water inlet pipe 24 connected to the first water inlet pipe 3, and a second water return pipe 25 connected to the first water return pipe 4, the second water inlet pipe 24 and the second water return pipe 25 are communicated in the water cooling shield 23 to form a first water flow loop, so that water flows cool the nozzles 21 through the water cooling shield 23.

In one embodiment, during the welding operation, the water pump supplies water to the first water inlet pipe 3, and the water flows through the first water inlet pipe 3, the second water inlet pipe 24, the water-cooling shield 23, the second water return pipe 25 and the first water return pipe 4 in sequence, and then flows out to the outside to be cooled, and is pumped again by the water pump, so as to form a first water flow loop. Adopt business turn over water pipe all the way to cool off two nozzles 21, compare and adopt two water pipes to cool off two nozzles 21 respectively, under the prerequisite of guaranteeing the cooling action, reduced double-wire welder's volume, alleviateed double-wire welder's weight, help the workman to hold double-wire welder.

Wherein, the form that the rifle neck mechanism 2 adopted can peg graft helps changing the maintenance to rifle neck mechanism 2, practices thrift the cost.

Preferably, the gun neck 22 comprises a wire feeding pipe 221 and an outer protection pipe 222, reinforcing ribs 223 connected with the outer protection pipe 222 are protruded from two sides of the wire feeding pipe 221 along the extension direction of the wire feeding pipe 221, the reinforcing ribs 223 divide a gap between the wire feeding pipe 221 and the outer protection pipe 222 into a water inlet flow passage 224 and a water return flow passage 225, the water inlet flow passage 224 and the water return flow passage 225 are communicated with one end of the gun neck 22 close to the nozzle 21 to form a second water flow loop, and the second water flow loop located in the gun neck 22 is used for cooling the gun neck 22, so that the cooling effect of the twin-wire welding gun is improved.

In one embodiment, a second water flow circuit is provided at the gap between the wire feed tube 221 and the outer protective tube 222 of the gun neck 22 for cooling the gun neck 22. The hollow inside of wire feed tube 221 is used to feed the welding wire, and there is flowing liquid in the gap between wire feed tube 221 and outer protective tube 222 to cool down gun neck 22. The gap is divided into a water inlet flow passage 224 and a water return flow passage 225 by a reinforcing rib 223 between the wire feeding pipe 221 and the outer protection pipe 222, and the water inlet flow passage 224 and the water return flow passage 225 are communicated with each other near the nozzle 21 to form a water flow loop.

Preferably, a water inlet 226 communicated with the water inlet channel 224 and a water return 227 communicated with the water return channel 225 are formed in the end portion, close to the welding gun body 1, of the gun neck 22, the gun neck mechanism 2 is inserted into the welding gun body 1, the water inlet 226 is communicated with a water inlet pipeline in the welding gun, the water return 227 is communicated with the first water inlet pipe 3, the water inlet pipeline supplies water to the water inlet channel 224 through the water inlet 226, and a water source flowing out of the water return channel 225 enters the first water inlet pipe 3.

In one embodiment, the water pump supplies water to the welding gun neck 22 through the water inlet pipe, and the water flows out to the outside after passing through the water inlet hole 226, the water inlet channel 224, the water return channel 225, the water return hole 227, the first water inlet pipe 3, the second water inlet pipe 24, the water-cooled shield 23, the second water return pipe 25, and the first water return pipe 4 in sequence. Namely, the water flow firstly cools the welding gun neck 22 through the second water flow loop, and then cools the nozzle 21 through the first water flow loop. It should be noted that, during welding, the temperature of the nozzle 21 is much higher than the temperature of the torch neck 22, so that the cooling water first cools the torch neck 22 through the second water flow circuit, and the water temperature when the cooling water flows out of the water return hole 227 is lower than the water temperature inside the water-cooled shroud 23, and the water flow at this time can still cool the nozzle 21. And a serial connection type connecting pipe is adopted to cool the gun neck mechanism 2 of the welding gun step by step, so that the cooling effect is improved.

Preferably, the inlet opening 226 has been seted up 4 and all is located strengthening rib 223 below, and return water hole 227 is the same with the quantity of inlet opening 226 and all is located the top of strengthening rib 223, and the size and the quantity of inlet opening 226 and return water hole 227 are the same to guarantee that rivers normally flow in the second rivers return circuit. The cross section of the water inlet hole 226 at the gun neck 22 is staggered with the cross section of the water return hole 227 at the gun neck 22, so that the water source entering from the water inlet hole 226 flows into the water inlet channel 224, and the water flowing out from the water return channel 225 is discharged through the water return hole 227.

Preferably, the second water inlet pipe 24 is provided with a plug sleeve 26 for connecting the first water inlet pipe 3; the second water return pipe 25 is provided with a plug sleeve 26 for connecting the first water return pipe 4, and the plug sleeve 26 can be quickly connected with the first water inlet pipe 3, the second water inlet pipe 24, the first water return pipe 4 and the second water return pipe 25.

Preferably, an O-shaped ring is installed in the inserting sleeve 26 to avoid water leakage at the joint of the water pipe.

Preferably, a stepped ring groove 11 matched with the plug connector of the gun neck mechanism 2 is arranged at the joint of the welding gun body 1 and the gun neck mechanism 2, which is beneficial to realizing the connection and fixation of the gun neck mechanism 2 and the welding gun body 1. The use of the stepped ring groove 11 also aids in the alignment of the hosel mechanism 2.

Preferably, be equipped with the insulating layer in the welder rifle body 1, prevent that the heat that the welding produced from scalding the welder casing, help the workman to grip the welder rifle body 1.

When adopting above-mentioned two silk welder's of hand-held type water-cooling mechanism, adopt the serial-type water pipe all the way to cool off two welder nozzles 21, under the effect of guaranteeing to carry out the refrigerated to nozzle 21, reduced the weight of welder structure, be convenient for the manual work and grip two silk welder and carry out welding operation. The use of the pluggable neck mechanism 2 facilitates the replacement and maintenance of the neck mechanism 2. The periphery of the nozzle 21 is cooled by the water-cooling shield 23, so that the water-cooling effect is improved.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (8)

1. The utility model provides a hand-held type double-wire welding gun's water-cooling mechanism, installs to the welder rifle body on, its characterized in that, water-cooling mechanism including can peg graft to rifle neck mechanism on the welder rifle body, protrusion in the first inlet tube and the first wet return of the welder rifle body, rifle neck mechanism includes that two sets of rifle necks, the cover that are equipped with nozzle and the structure is the same establish the water-cooling guard shield, the connection in the two sets of nozzle outsides the second inlet tube and the connection of first inlet tube the second wet return of first wet return, the second inlet tube with the second wet return is in the intercommunication forms first rivers return circuit in the water-cooling guard shield.

2. The water cooling mechanism for a handheld twin-wire welding gun according to claim 1, wherein the gun neck includes a wire feeding pipe and an outer protection pipe, and reinforcing ribs connected to the outer protection pipe are protruded from both sides of the wire feeding pipe along an extending direction of the wire feeding pipe, the reinforcing ribs divide a gap between the wire feeding pipe and the outer protection pipe into a water inlet flow passage and a water return flow passage, and the water inlet flow passage and the water return flow passage are communicated with each other at one end of the gun neck near the nozzle to form a second water flow loop.

3. The water cooling mechanism for the handheld twin-wire welding gun according to claim 2, wherein a water inlet hole communicating with the water inlet flow passage and a water return hole communicating with the water return flow passage are formed at an end portion of the gun neck near the welding gun body, the water inlet hole is communicated with a water inlet pipe in the welding gun, and the water return hole is communicated with the first water inlet pipe in a state that the gun neck mechanism is inserted into the welding gun body.

4. The water cooling mechanism for the handheld double-wire welding gun according to claim 3, wherein 4 water inlets are formed in the water inlet hole and are all located below the reinforcing rib, the number of the water return holes is the same as that of the water inlets and are all located above the reinforcing rib, and the cross sections of the water inlets at the gun neck and the cross sections of the water return holes at the gun neck are arranged in a staggered mode.

5. The water cooling mechanism for the handheld twin-wire welding gun according to claim 1, wherein a plug sleeve for connecting the first water inlet pipe is mounted on the second water inlet pipe; and the second water return pipe is provided with an inserting sleeve used for connecting the first water return pipe.

6. The water cooling mechanism for a handheld twin wire welding gun according to claim 5, wherein an O-ring is installed in the socket sleeve.

7. The water cooling mechanism for the handheld double-wire welding gun according to claim 1, wherein a stepped ring groove matched with a plug connector of the gun neck mechanism is formed at the joint of the welding gun body and the gun neck mechanism.

8. The water cooling mechanism for a handheld twin-wire welding gun according to claim 1, wherein a heat insulating layer is provided in the welding gun body.

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