CN212094786U - Narrow-gap submerged arc welding gun - Google Patents
Narrow-gap submerged arc welding gun Download PDFInfo
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- CN212094786U CN212094786U CN202020848748.8U CN202020848748U CN212094786U CN 212094786 U CN212094786 U CN 212094786U CN 202020848748 U CN202020848748 U CN 202020848748U CN 212094786 U CN212094786 U CN 212094786U
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- gun body
- conductive nozzle
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- submerged arc
- arc welding
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Abstract
The utility model discloses a narrow-gap submerged arc welding gun, which comprises a gun body, wherein one end of the gun body is provided with a conductive nozzle which is connected with the gun body by adopting threads; the other end of the gun body is connected with a rotary reducer motor, the gun body is driven to rotate through an output hole of the rotary reducer motor, and the gun body and the rotary reducer motor are locked through a nut; the middle part of the gun body is provided with a through hole, a wire guide spring is arranged in the through hole, the wire guide spring penetrates through the gun body to the conductive nozzle, and the conductive nozzle is thermally bent by 0-10 degrees. The utility model discloses during narrow clearance submerged arc welding, in order to guarantee the good fusion of groove lateral wall and welding defects such as the slag that do not appear pressing from both sides, when each welding bead welding, the conductive nozzle portion drives the welding wire end and is partial to the groove lateral wall that is close separately. The electric deflection type of the conductive nozzle is adopted, after welding a weld bead on one side, the conductive nozzle is swung to deflect to the other side, and the tail of the conductive nozzle is always positioned in the center of a groove gap.
Description
Technical Field
The utility model relates to an automatic change welding equipment technical field, especially relate to a narrow clearance submerged arc welding welder.
Background
With the increasing upsizing and high parameter of modern industrial and heavy equipment, the application of thick plate and ultra-thick plate welding metal structure is more and more extensive, and narrow gap submerged arc welding is a novel welding technology with high welding efficiency, excellent welding joint performance and lower production cost, and is increasingly paid attention to the welding field and favored by enterprises.
In narrow gap welding, one, two or three welds per layer can be performed. In narrow gap submerged arc welding of two passes per layer and three passes per layer, in order to ensure good fusion of the crevasse side walls without welding defects such as slag inclusion, the tip of the welding wire must be biased toward the respective adjacent crevasse side wall during welding of each weld pass. The existing welding machine has the disadvantages of complex structure, low production efficiency and high production cost.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a narrow clearance submerged arc welding welder in order to solve above-mentioned problem, through the direct rotatory welder rifle body of AC servo motor reduction gear, accurate control is accomplished to electrically conductive time and the angle homoenergetic of chewing the beat, makes the welder structure simpler, and manufacturing cost is lower.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a narrow-gap submerged arc welding gun comprises a gun body, wherein a conductive nozzle is arranged at one end of the gun body and is connected with the gun body through threads;
the other end of the gun body is connected with a rotary reducer motor, the gun body is driven to rotate through an output hole of the rotary reducer motor, and the gun body and the rotary reducer motor are locked through a nut;
the middle part of the gun body is provided with a through hole, a wire guide spring is arranged in the through hole, the wire guide spring penetrates through the gun body to the conductive nozzle, and the conductive nozzle is thermally bent by 0-10 degrees.
Further, the top of the motor of the rotary speed reducer is also provided with a wire feeding mechanism.
The gun body is divided into an upper part and a lower part, the middle parts are connected through a threaded joint, and the direction of the conductive nozzle is convenient to install and adjust.
The further scheme is that ceramic spraying is adopted on the surface of the position of an output hole of the upper part of the gun body through a motor of the rotating speed reducer, and ceramic spraying is adopted on the surface of the lower part of the gun body.
The wire guide spring is made of alloy steel materials and processed into a spiral spring structure, and welding wires can pass through the wire guide spring.
The further proposal is that the conductive nozzle is made of chromium zirconium copper, and the outer surface of the conductive nozzle is sprayed with ceramics.
The beneficial effects of the utility model reside in that:
the utility model discloses a narrow clearance submerged arc welding welder, during narrow clearance submerged arc welding, in order to guarantee the good fusion of groove side wall and welding defects such as the slag that do not appear, when each welding bead welding, electrically conductive nozzle portion drives the welding wire end and is partial to the groove side wall that is close separately. The electric deflection type of the conductive nozzle is adopted, after welding a weld bead on one side, the conductive nozzle is swung to deflect to the other side, and the tail of the conductive nozzle is always positioned in the center of a groove gap. The AC servo direct drive is adopted, and the time and the angle of deflection can be accurately controlled, so that the welding gun has a simpler structure and low production and manufacturing cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the embodiments or the drawings needed in the prior art description, and obviously, the drawings in the following description are only some embodiments of the embodiments, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a structural diagram of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In any embodiment, as shown in fig. 1, the narrow gap submerged arc welding gun of the present invention includes a gun body 3, wherein a conductive nozzle 1 is disposed at one end of the gun body 3, and the conductive nozzle 1 is connected to the gun body 3 by a screw thread;
the other end of the gun body 3 is connected with a rotary reducer motor 4, the gun body 3 is driven to rotate through an output hole of the rotary reducer motor 4, and the gun body and the rotary reducer motor are locked through a nut 5;
the middle of the gun body 3 is provided with a through hole, a wire guide spring 2 is arranged in the through hole, the wire guide spring 2 penetrates through the gun body 3 to the conductive nozzle 1, the conductive nozzle 1 is thermally bent by an angle of 0-10 degrees, and the AC servo motor drives the speed reducer to rotate so as to drive the gun body and the conductive nozzle to rotate, so that deflection of the conductive nozzle is realized.
And the top of the rotating speed reducer motor 4 is also provided with a wire feeding mechanism. The rotating speed reducer motor 4 adopts an alternating current servo motor, the speed reducer adopts a worm gear speed reducer, the speed reducer adopts a hole output structure, and the gun body can pass through the output hole of the speed reducer and is locked by a nut. The AC servo motor drives the speed reducer to rotate so as to drive the gun body and the conductive nozzle to rotate, and deflection of the conductive nozzle is realized.
The surface of the upper part of the gun body 3 is sprayed with ceramics through the position of an output hole of the rotating speed reducer motor 4, and the surface of the lower part of the gun body 3 is sprayed with ceramics.
The guide wire spring 2 is made of alloy steel materials, is processed into a spiral spring structure, can be internally passed by welding wires, reduces the abrasion of the welding wires on the inner wall of the gun body, and can greatly prolong the service life of the gun body of the welding gun.
The main body material of the conductive nozzle 1 adopts chromium zirconium copper with good mechanical property, wear resistance and good conductive property instead of stainless steel, so that the conductive nozzle has enough strength and rigidity and is stable in working process. The conductive nozzle 1 is connected with the gun body 3 by threads, and the material cost can be obviously reduced by only replacing the conductive nozzle when the mouth part is worn. The outer surface of the conductive nozzle 1 adopts ceramic spraying instead of coating, so that the insulating property is good and the conductive nozzle is not easy to peel off. The conductive nozzle 1 is hot bent at an angle of 0-10 degrees, and the angle requirement can be selected according to the process requirement.
In a specific embodiment, as shown in fig. 1, the utility model discloses a narrow clearance submerged arc welding gun, rifle body 3 divide into upper and lower part and constitutes, and the centre is through screwed joint connection, conveniently installs and adjusts the electrically conductive 1 direction of chewing.
The main body material of the gun body adopts brass which has good mechanical property, wear resistance and good electrical conductivity, the upper part of the gun body is locked by a nut through a rotating reducer output hole, and the middle part of the gun body is provided with a through hole, so that a guide wire spring can conveniently penetrate through the gun body to an electrical conduction nozzle. The upper part of the gun body adopts ceramic spraying through the position surface of the output hole of the speed reducer, so that the gun body can be effectively insulated from the motor of the speed reducer, and the motor is protected from being damaged during welding. The length of the gun body can be manufactured according to the requirement, and the welding requirements of various large-thickness narrow-gap crevasses can be met. The surface of the lower part of the gun body is sprayed with ceramics, and the gun body can be protected from being damaged by the fact that the gun body contacts with a workpiece during welding.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features. In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (6)
1. The narrow-gap submerged arc welding gun is characterized by comprising a gun body (3), wherein one end of the gun body (3) is provided with a conductive nozzle (1), and the conductive nozzle (1) is connected with the gun body (3) through threads;
the other end of the gun body (3) is connected with a rotary speed reducer motor (4), the gun body (3) is driven to rotate through an output hole of the rotary speed reducer motor (4), and the gun body and the rotary speed reducer motor are locked through a nut (5);
the middle of the gun body (3) is provided with a through hole, a guide wire spring (2) is arranged in the through hole, the guide wire spring (2) penetrates through the gun body (3) to the conductive nozzle (1), and the conductive nozzle (1) is thermally bent by 0-10 degrees.
2. A narrow gap submerged arc welding gun according to claim 1, characterized in that a wire feeder is also provided on top of the rotating reducer motor (4).
3. The narrow gap submerged arc welding gun according to claim 1, characterized in that the gun body (3) is divided into an upper part and a lower part, the middle parts are connected through a threaded joint, and the direction of the conductive nozzle (1) is convenient to install and adjust.
4. A narrow gap submerged arc welding gun according to claim 1, characterized in that the surface of the upper part of the gun body (3) passing through the position of the output hole of the rotating reducer motor (4) is coated with ceramic, and the surface of the lower part of the gun body (3) is coated with ceramic.
5. A narrow gap submerged arc welding gun according to claim 1, characterized in that said wire spring (2) is made of alloy steel and is formed into a coil spring structure, and the inner part of the coil spring structure is provided for the welding wire to pass through.
6. A narrow gap submerged arc welding gun according to claim 1, characterized in that the conducting tip (1) is made of chromium zirconium copper and the outer surface of the conducting tip (1) is ceramic sprayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020848748.8U CN212094786U (en) | 2020-05-18 | 2020-05-18 | Narrow-gap submerged arc welding gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020848748.8U CN212094786U (en) | 2020-05-18 | 2020-05-18 | Narrow-gap submerged arc welding gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212094786U true CN212094786U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020848748.8U Active CN212094786U (en) | 2020-05-18 | 2020-05-18 | Narrow-gap submerged arc welding gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212094786U (en) |
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2020
- 2020-05-18 CN CN202020848748.8U patent/CN212094786U/en active Active
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