External welding double-wire welding gun capable of automatically clamping and positioning

By introducing the design of spring preloaded parts and conductive sliders in the external welding double-wire welding gun, the problems of wire jamming, poor conductivity and welding deviation are solved, and stable clamping and conductive effects are achieved during the welding process.

CN223313280UActive Publication Date: 2025-09-09JINAN MAGANG STEEL PIPE MFG CO LTD
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Patent Information

Application Number
CN202422249501.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-12
Publication Date
2025-09-09
Estimated Expiration
2034-09-12

AI Technical Summary

Technical Problem

Existing external welding double-wire welding guns are prone to problems such as wire jamming, poor conductivity, excessive welding temperature, shallow penetration and welding deviation during use.

Method used

The design of spring preloaded parts, conductive slider and wear-resistant limit slider ensures close contact between the conductive slider and the welding wire. The spring preloaded parts provide stable clamping force and cooperate with the limit slider to prevent the welding wire from deflecting.

Benefits of technology

Effectively prevent poor conductivity, ensure stable clamping of the welding wire during welding, avoid welding deviation, and improve welding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an external welding double-wire welding gun capable of automatically clamping and positioning, which belongs to the technical field of welding equipment and comprises a welding gun mounting plate, a welding gun connecting part is arranged at one end of the welding gun mounting plate, a first clamping piece and a second clamping piece are arranged at the other end of the welding gun mounting plate, and spring pre-tightening pieces are arranged between the welding gun connecting part and the first clamping piece as well as between the welding gun connecting part and the second clamping piece; a welding wire is arranged between the first clamping piece and the second clamping piece, one end of the spring pre-tightening piece is connected with the welding gun mounting plate, and the other end of the spring pre-tightening piece is connected with the second clamping piece; and the second clamping piece can be close to or far away from the first clamping piece under the action of the spring pre-tightening piece. The spring pre-tightening piece is arranged to be matched with the conductive sliding block, so that the conductive sliding block is in close contact with the welding wire in the welding process, the welding problem caused by poor conductivity is prevented, meanwhile, the abrasion-resistant limiting sliding block is arranged to be matched with the conductive sliding block to stably clamp the welding wire, it is guaranteed that the front welding wire and the rear welding wire do not shift in the welding process, and welding deviation is prevented.
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Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and in particular relates to an external welding double-wire welding gun with automatic clamping and positioning. Background Art

[0002] The statements herein merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] The current external welding double-wire welding gun uses a conductive nozzle to clamp the welding wire. During use, there is a problem that the welding wire is easily stuck. With continuous welding, the conductive nozzle wears out, resulting in poor conductivity, making the temperature of the welding wire end too high and the penetration depth shallower, which is easy to cause incomplete welding during the welding process. In addition, after the conductive nozzle is worn, the front and rear welding wires clamped will be offset, which is easy to cause welding deviation problems. Utility Model Content

[0004] The purpose of the utility model is to provide an external welding double-wire welding gun with automatic clamping and positioning. By arranging a spring pre-tightening part in conjunction with a conductive slider, the conductive slider is brought into close contact with the welding wire during the welding process, thereby preventing welding problems caused by poor conductivity. At the same time, a wear-resistant limit slider is arranged in conjunction with the conductive slider to achieve stable clamping of the welding wire, thereby ensuring that the front and rear welding wires do not deviate during the welding process and preventing welding deviation.

[0005] In order to achieve the above purpose, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides an external welding twin-wire welding gun with automatic clamping and positioning, comprising a welding gun mounting plate, one end of the welding gun mounting plate being provided with a welding gun connecting portion, and the other end being provided with a first clamping member and a second clamping member, a spring pre-tightening member being provided between the welding gun connecting portion and the first clamping member and the second clamping member;

[0007] A welding wire is provided between the first clamping member and the second clamping member. One end of the spring preload member is connected to the welding gun mounting plate, and the other end is connected to the second clamping member. The second clamping member can move closer to or farther away from the first clamping member under the action of the spring preload member.

[0008] As a further technical solution, a seamless steel pipe is provided between the first clamping piece and the second clamping piece, and a welding wire is provided in the seamless steel pipe.

[0009] As a further technical solution, the spring preload member is provided with an arc-shaped structure adapted to the seamless steel pipe, and the arc-shaped structure abuts against the outer wall of the seamless steel pipe.

[0010] As a further technical solution, the welding gun connection portion is provided with a power connection hole and a transition plate connection hole.

[0011] As a further technical solution, a conductive slider is provided at one end of the first clamping member away from the welding gun connection portion, and the conductive slider abuts against the welding wire.

[0012] As a further technical solution, the conductive slider is provided with a groove structure adapted to the welding wire, and the groove structure abuts against the welding wire.

[0013] As a further technical solution, a limiting slider is provided at one end of the second clamping member away from the welding gun connection portion, and the limiting slider abuts against the welding wire.

[0014] As a further technical solution, the limiting slider is provided with a protruding structure adapted to the welding wire, and the protruding structure abuts against the welding wire.

[0015] As a further technical solution, the spring preloaded member includes a spring, a connecting rod, and a knob; the connecting rod passes through the second clamping member and is connected to the second clamping member, a spring is sleeved on the outside of the connecting rod, the spring is arranged between the connecting rod and the second clamping member, and a knob is provided at one end of the connecting rod passing through the second clamping member.

[0016] As a further technical solution, the connecting rod passes through one end of the second clamping member and is connected to the knob through a thread.

[0017] The beneficial effects of the above embodiments of the present invention are as follows:

[0018] The utility model provides an external welding double-wire welding gun with automatic clamping and positioning. A spring pre-tightening member is provided in conjunction with a conductive slider, so that the conductive slider and the welding wire are in close contact during the welding process, thereby preventing welding problems caused by poor conductivity. At the same time, a wear-resistant limit slider is provided in conjunction with the conductive slider to achieve stable clamping of the welding wire, ensuring that the front and rear welding wires do not deviate during the welding process, thereby preventing welding deviation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of an external welding double-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0021] Figure 2 This is a bottom view schematic diagram of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0022] Figure 3 This is a schematic structural diagram of a spring pre-tightening member of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0023] Figure 4A This is a front structural diagram of a conductive slider of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0024] Figure 4B This is a schematic diagram of the top surface structure of a conductive slider of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0025] Figure 5A This is a front structural diagram of a limiting slider of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0026] Figure 5B This is a schematic diagram of the top surface structure of a limiting slider of an external welding twin-wire welding gun provided by Example 1 of the present utility model;

[0027] Figure 6A This is a front view of a second clamping structure of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0028] Figure 6B This is a schematic top view of a second clamping structure of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0029] Figure 7A This is a front view of a first clamping structure of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0030] Figure 7B This is a schematic top view of a first clamping structure of an external welding twin-wire welding gun with automatic clamping and positioning provided by Example 1 of the present utility model;

[0031] The diagram is for illustrative purposes only;

[0032] Among them, 1. Welding gun connection part; 1.1. Transition plate connection hole; 1.2. Welding machine power connection hole; 2. Mounting bolt; 3. Welding wire; 4. Seamless steel pipe; 5. Spring preload; 5.1 Connecting rod; 5.2. Knob; 5.3. Spring; 5.4. Arc structure; 5.5. Threaded structure; 6. First clamping part; 7. Second clamping part; 8. Limiting slider; 8.1. Protrusion structure; 9. Conductive slider; 9.1. Groove structure. DETAILED DESCRIPTION

[0033] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0034] Example 1

[0035] In a typical embodiment of the present invention, Figure 1 As shown, an external welding twin-wire welding gun with automatic clamping and positioning is provided, comprising a welding gun mounting plate, one end of which is provided with a welding gun connecting portion 1, and the other end of which is provided with a first clamping member 6 and a second clamping member 7, and a spring pre-tightening member 5 is provided between the welding gun connecting portion 1 and the first clamping member 6 and the second clamping member 7;

[0036] A welding wire 3 is provided between the first clamping member 6 and the second clamping member 7. One end of the spring preload member 5 is connected to the welding gun mounting plate, and the other end is connected to the second clamping member 7. The second clamping member 7 can move closer to or away from the first clamping member 6 under the action of the spring preload member 5.

[0037] In this embodiment, the first clamping member 6 and the second clamping member 7 are arranged opposite to each other on the left and right sides of the welding gun mounting plate, and are detachably connected to the welding gun mounting plate through the mounting bolts 2, and the lower dimensions of the first clamping member 6 and the second clamping member 7 gradually decrease to form a conical structure, and the top of the conical structure clamps the welding wire 3.

[0038] Furthermore, a seamless steel pipe 4 is provided between the first clamping member 6 and the second clamping member 7, and a welding wire 3 is provided in the seamless steel pipe 4. By providing the seamless steel pipe 4, the welding wire 3 is more smoothly and stably conveyed during welding, and the welding wire 3 is prevented from deviating.

[0039] The spring preload member 5 is provided with an arc structure 5.4 adapted to the seamless steel pipe 4, and the arc structure 5.4 abuts against the outer wall of the seamless steel pipe 4. The arc structure 5.4 provided on the spring preload member 5 abuts against the seamless steel pipe 4, which can ensure the stability of the seamless steel pipe 4 during the welding process.

[0040] The welding gun connection part 1 is provided with a power connection hole 1.2 for connecting an external welding power source and a transition plate connection hole 1.1 for connecting other device structures.

[0041] like Figure 2 As shown, a conductive slider 9 is provided at the end of the first clamping member 6 away from the welding gun connection portion 1. The conductive slider 9 has a groove structure 9.1 adapted to fit the welding wire 3, and the groove structure 9.1 abuts the welding wire 3. A limiting slider 8 is provided at the end of the second clamping member 7 away from the welding gun connection portion 1. The limiting slider 8 has a protrusion structure 8.1 adapted to fit the welding wire 3, and the protrusion structure 8.1 abuts the welding wire 3.

[0042] In this embodiment, the conductive slider 9 is detachably connected to the end of the first clamping member 6 by means of the mounting bolt 2, and the limiting slider 8 is also detachably connected to the end of the second clamping member 7 by means of the mounting bolt 2. The groove structure 9.1 of the conductive slider 9 cooperates with the protruding structure 8.1 of the limiting slider 8 to form a slot channel for the welding wire 3 to pass through, thereby achieving clamping of the welding wire 3.

[0043] In this embodiment, the upper end of the seamless steel pipe 4 is connected to an external wire feeding mechanism for conveying the welding wire 3, and its lower end abuts the conductive slider 9 and the limiting slider 8 to convey the welding wire 3 into the slot formed by the conductive slider 9 and the limiting slider 8.

[0044] like Figure 3-7B As shown, the spring preload member 5 includes a spring 5.3, a connecting rod 5.1, and a knob 5.2. The connecting rod 5.1 passes through the second clamping member 7 and is connected to the second clamping member 7. The spring 5.3 is sleeved on the outside of the connecting rod 5.1 and is positioned between the connecting rod 5.1 and the second clamping member 7. The end of the connecting rod 5.1 that passes through the second clamping member 7 is provided with a knob 5.2. Furthermore, the end of the connecting rod 5.1 that passes through the second clamping member 7 is connected to the knob 5.2 via a threaded structure 5.5.

[0045] In this embodiment, the second connector is provided with a connecting plate. A connecting rod 5.1 of the spring preload member 5 passes through the connecting plate and is connected to the second clamping member 7. A spring 5.3 is disposed between the connecting rod 5.1 and the second clamping member 7 and is sleeved outside the connecting rod 5.1. One end of the connecting rod 5.1 passes through the second clamping member 7 and is connected to the knob 5.2 via a threaded structure 5.5. With this arrangement, rotating the knob 5.2 imparts a certain preload to the spring 5.3. The spring 5.3 exerts a rightward elastic force against the second connector, causing the second connector to rotate clockwise under the elastic force. This causes the limiting slider 8 connected to the lower portion of the second connector to approach the conductive slider 9, thereby achieving automatic positioning and clamping of the welding wire 3.

[0046] By setting a spring preloaded part 5 in conjunction with the conductive slider 9, the conductive slider 9 is in close contact with the welding wire 3 during the welding process, thereby preventing welding problems caused by poor conductivity. At the same time, a wear-resistant limit slider 8 is set in conjunction with the conductive slider 9 to achieve stable clamping of the welding wire 3, ensuring that the front and rear welding wires 3 do not deviate during the welding process, thereby preventing welding deviation.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An external welding twin-wire welding gun with automatic clamping and positioning, characterized in that: It includes a welding gun mounting plate, one end of which is provided with a welding gun connecting portion, and the other end of which is provided with a first clamping piece and a second clamping piece, and a spring pre-tightening piece is provided between the welding gun connecting portion and the first clamping piece and the second clamping piece; A welding wire is provided between the first clamping member and the second clamping member. One end of the spring preload member is connected to the welding gun mounting plate, and the other end is connected to the second clamping member. The second clamping member can move closer to or farther away from the first clamping member under the action of the spring preload member.

2. The automatic clamping and positioning external welding twin-wire welding gun according to claim 1, characterized in that: A seamless steel pipe is provided between the first clamping piece and the second clamping piece, and a welding wire is provided in the seamless steel pipe.

3. The automatic clamping and positioning external welding twin-wire welding gun according to claim 2, characterized in that: The spring preload member is provided with an arc structure adapted to the seamless steel pipe, and the arc structure abuts against the outer wall of the seamless steel pipe.

4. The automatic clamping and positioning external welding twin-wire welding gun according to claim 1, characterized in that: The welding gun connection part is provided with a power connection hole and a transition plate connection hole.

5. The automatic clamping and positioning external welding twin-wire welding gun according to claim 1, characterized in that: A conductive slider is provided at one end of the first clamping member away from the welding gun connection portion, and the conductive slider abuts against the welding wire.

6. The automatic clamping and positioning external welding twin-wire welding gun according to claim 5, characterized in that: The conductive slider is provided with a groove structure adapted to the welding wire, and the groove structure abuts against the welding wire.

7. The automatic clamping and positioning external welding twin-wire welding gun according to claim 1, characterized in that: A limiting slider is provided at one end of the second clamping member away from the welding gun connecting portion, and the limiting slider abuts against the welding wire.

8. The automatic clamping and positioning external welding twin-wire welding gun according to claim 7, characterized in that: The limiting slider is provided with a protruding structure adapted to the welding wire, and the protruding structure abuts against the welding wire.

9. The automatic clamping and positioning external welding twin-wire welding gun according to claim 1, characterized in that: The spring preloaded member includes a spring, a connecting rod, and a knob; the connecting rod passes through the second clamping member and is connected to the second clamping member, a spring is sleeved on the outside of the connecting rod, the spring is arranged between the connecting rod and the second clamping member, and a knob is provided on one end of the connecting rod passing through the second clamping member.

10. The automatic clamping and positioning external welding twin-wire welding gun according to claim 9, characterized in that: One end of the connecting rod passes through the second clamping piece and is connected to the knob through a thread.