Welding device for high-altitude operation

Abstract

The utility model discloses a welding device for aloft work, which comprises a welding gun, and an angle limiting mechanism for limiting the welding angle of a nozzle is arranged at the nozzle of the welding gun. The angle limiting mechanism comprises a fixing piece detachably arranged at the position of a welding gun nozzle, the fixing piece can rotate around the position of the welding gun nozzle, and movable plates in mirror symmetry are rotationally arranged on the two side walls of the fixing piece. According to the angle limiting device, the angle limiting mechanism is arranged at the welding gun nozzle, after the welding gun nozzle is close to a welding seam, the two movable plates are controlled by the adjusting assembly to rotate till the two movable plates make contact with two welded parts respectively, and at the moment, the welding gun nozzle is located at the middle included angle of the welding seam and located at the optimal welding angle; and then, welding personnel do not need to distract to control the welding angle of the nozzle of the welding gun, so that the purposes of keeping the stability of welding gun operation under the abnormal standing posture and improving the welding quality are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding construction, in particular to a welding device used for high-altitude operations. Background Art

[0002] High-altitude welding refers to welding work performed at a high altitude from the ground. This type of work is usually encountered in construction sites, bridge construction, high-rise building maintenance, tower and high-voltage power line installation, etc. Due to the particularity of high-altitude work, it puts forward higher requirements on welding technology.

[0003] At present, when performing high-altitude welding, welders are required to stand on a set up welding platform to perform welding operations. However, since there are many welding points at the intersecting nodes of the building steel structure and they are not on the same side, it is difficult for welders to maintain a normal standing posture when performing standing welding operations on some points. In this state, welders have poor stability in operating the welding gun and it is difficult to ensure stable welding quality. Utility Model Content

[0004] The purpose of the utility model is to provide a welding device for high-altitude operation to solve the above-mentioned shortcomings, so as to improve the operating stability of the welding gun.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a welding device for high-altitude operations, comprising a welding gun, wherein the nozzle of the welding gun is provided with an angle limiting mechanism for limiting the welding angle of the nozzle; the angle limiting mechanism comprises a fixing part detachably arranged at the nozzle of the welding gun, the fixing part can rotate around the nozzle of the welding gun, and mirror-symmetrical movable plates are rotatably arranged on both side walls of the fixing part, and an adjustment component capable of controlling two movable plates to adjust to the same angle is provided on the fixing part.

[0006] Furthermore, the adjustment assembly includes a hollow box body arranged on the side of the fixing part away from the welding end of the welding gun, the top of the hollow box body is threadedly provided with an adjusting screw plugged into the hollow box body, one end of the adjusting screw located in the hollow box body is rotatably provided with a pressure plate that can move up and down in the hollow box body, two oil storage bags located at the bottom of the pressure plates are provided in the hollow box body, the oil storage bags are provided with an oil pipe connected to the oil storage bags, and the end of the oil pipe away from the oil storage bag is provided with a foldable telescopic tube for pushing the movable plate to rotate around the fixing part.

[0007] Furthermore, a plurality of balls for reducing the resistance of the movable plate to move up and down are arranged on the side of the movable plate away from the foldable telescopic tube.

[0008] Furthermore, an auxiliary limiting assembly for limiting the downward tilt angle of the welding gun is arranged at the bottom of the fixing member, and the auxiliary limiting assembly includes a support rod detachably arranged at the bottom of the fixing member, and a roller for connecting with the weld is rotatably arranged at one end of the support rod away from the fixing member.

[0009] Furthermore, a knocking assembly for knocking off welding slag at the weld is further provided at one end of the support rod away from the fixing member, the knocking assembly comprises a lever arranged on the support rod by a torsion spring, a knocking ball is arranged at one end of the lever away from the support rod, the knocking assembly further comprises a cam arranged on the roller shaft and capable of rotating synchronously with the roller, the cam is in contact with one end of the lever away from the knocking ball, and the axis of the lever is located at the bottom of the axis of the roller;

[0010] When the torsion spring is in a natural state, the striking ball and the roller are in contact with the weld at the same time, and the distance between the shifting rod and the camshaft centerline is the smallest.

[0011] The beneficial effects of the utility model are embodied in:

[0012] The utility model installs an angle limiting mechanism at the welding gun nozzle. After the welding gun nozzle approaches the weld, the adjusting assembly is used to control the rotation of the two movable plates until the two movable plates respectively contact the two welded parts. At this time, the welding gun nozzle is at the middle angle of the weld and is at the best welding angle. After that, the welder does not need to be distracted to control the welding angle of the welding gun nozzle, thereby achieving the purpose of being able to maintain the stability of the welding gun operation even in an abnormal standing posture and improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional view of the utility model;

[0014] Figure 2 for Figure 1 A local enlarged schematic diagram of point A shown;

[0015] Figure 3 It is a partial cross-sectional view of the angle limiting mechanism of the utility model;

[0016] Figure 4 It is a working schematic diagram of the utility model.

[0017] In the figure:

[0018] 1. Welding gun; 2. Angle limiting mechanism; 21. Fixing piece; 22. Movable plate; 23. Hollow box body; 24. Adjusting screw; 25. Pressing plate; 26. Oil storage bag; 27. Oil delivery pipe; 28. Folding telescopic tube; 3. Ball bearing; 4. Auxiliary limit assembly; 5. Knocking assembly; 51. Lever; 52. Knocking ball; 53. Cam. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 The utility model discloses a welding device for high-altitude operation, including a welding gun 1, wherein an angle limiting mechanism 2 for limiting the welding angle of the nozzle is arranged at the nozzle of the welding gun 1; the angle limiting mechanism 2 comprises a fixing member 21 detachably arranged at the nozzle of the welding gun 1, the fixing member 21 can rotate around the nozzle of the welding gun 1, and mirror-symmetrical movable plates 22 are rotatably arranged on both side walls of the fixing member 21, and an adjusting component capable of controlling two movable plates 22 to adjust the same angle is arranged on the fixing member 21.

[0021] The utility model installs the angle limiting mechanism 2 at the nozzle of the welding gun 1. After the nozzle of the welding gun 1 is close to the weld, the adjustment component is used to control the rotation of the two movable plates 22 until the two movable plates 22 respectively contact the two welded parts. At this time, the nozzle of the welding gun 1 is at the middle angle of the weld and is at the best welding angle. After that, the welder does not need to be distracted to control the welding angle of the nozzle of the welding gun 1, thereby achieving the purpose of being able to maintain the stability of the welding gun operation even in an abnormal standing posture and improving the welding quality.

[0022] It should be noted that before the angle limiting mechanism 2 is completely fixed to the nozzle of the welding gun 1, the downward tilt angle of the welding gun 1 needs to be adjusted according to the welding requirements, and then the fixing part 21 is installed on the nozzle of the welding gun 1 and the fixing part 21 is parallel to the weld surface.

[0023] In one embodiment, the adjustment assembly includes a hollow box body 23 arranged on the side of the fixing member 21 away from the welding end of the welding gun 1, and the top of the hollow box body 23 is threadedly provided with an adjusting screw 24 that is inserted into the hollow box body 23, and one end of the adjusting screw 24 located in the hollow box body 23 is rotatably provided with a pressure plate 25 that can move up and down in the hollow box body 23, and two oil storage bags 26 located at the bottom of the pressure plate 25 are arranged in the hollow box body 23, and an oil pipe 27 connected to the oil storage bag 26 is arranged on the oil storage bag 26, and a foldable telescopic tube 28 for pushing the movable plate 22 to rotate around the fixing member 21 is arranged at one end of the oil pipe 27 away from the oil storage bag 26.

[0024] This design allows the welder to squeeze the two oil storage bags 26 at the same time when turning the adjustment screw 24 once, so that the two foldable telescopic tubes 28 can expand synchronously, thereby achieving synchronous adjustment of the angles of the two movable plates 22 and ensuring that the nozzle of the welding gun 1 always remains in the middle state.

[0025] In specific implementation, when operating the welding gun 1, the welder also needs to apply a thrust to the welding gun 1 toward one side of the weld to make the movable plate 22 close to the welded part, so that the excess hydraulic oil can be squeezed back into the oil storage bag 26 to reduce the angle error of the movable plate 22.

[0026] It should be noted that a hollow chamber connected to the oil pipeline 27 is provided in the foldable telescopic tube 28, and the foldable telescopic tube 28 is arc-shaped, and its center is located on the axis of the rotating shaft of the movable plate 22, so that the foldable telescopic tube 28 can reduce the occupied space when compressed, and can also be extended to the required length according to the adjustment requirements of the movable plate 22.

[0027] In one embodiment, a plurality of balls 3 for reducing the resistance of the movable plate 22 to move up and down are provided on the side of the movable plate 22 away from the foldable telescopic tube 28. This design allows the balls 3 to contact the weldment when the welding gun 1 is welding, so that the angle limiting mechanism 2 will not increase the resistance of the welding gun 1 to move up and down.

[0028] In one embodiment, an auxiliary limit assembly 4 for limiting the downward tilt angle of the welding gun 1 is provided at the bottom of the fixing member 21. The auxiliary limit assembly 4 includes a support rod detachably provided at the bottom of the fixing member 21. The support rod is rotatably provided with a roller for connecting with the weld at one end away from the fixing member 21.

[0029] This design allows the welder to maintain a thrust on the welding gun 1 toward one side of the weld and utilize the auxiliary limit assembly 4 to ensure that the downward tilt angle of the welding gun 1 remains stable during welding, further improving the welder's stability in operating the welding gun.

[0030] In one embodiment, a knocking assembly 5 for knocking off welding slag at the weld is further provided at one end of the support rod away from the fixing member 21, the knocking assembly 5 comprises a lever 51 rotatably provided on the support rod through a torsion spring, a knocking ball 52 is provided at one end of the lever 51 away from the support rod, the knocking assembly 5 further comprises a cam 53 provided on the roller shaft and capable of rotating synchronously with the roller, the cam 53 is in contact with one end of the lever 51 away from the knocking ball 52, and the axis of the lever 51 is located at the bottom of the axis of the roller;

[0031] When the torsion spring is in a natural state, the striking ball 52 and the roller are in contact with the weld at the same time, and the distance between the axis lines of the shifting rod 51 and the cam 53 is the smallest.

[0032] With this design, the cam 53 rotates one circle every time the roller rotates one circle, and the cam 53 will first push the lever 51 when rotating, so that the knocking ball 52 is away from the weld. After that, after the cam 53 is out of contact with the lever 51, the lever 51 is reset under the action of the torsion spring, so that the knocking ball 52 knocks on the welded weld, so that the welding slag can be knocked off before it is completely cooled, so that the welding operation and the welding slag knocking operation can be carried out at the same time, reducing the difficulty of slag cleaning caused by the cooling and hardening of the welding slag.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] In addition, "plurality" means two or more.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A welding device for high-altitude work, comprising a welding gun (1), characterized in that: The nozzle of the welding gun (1) is provided with an angle limiting mechanism (2) for limiting the welding angle of the nozzle; the angle limiting mechanism (2) comprises a fixing member (21) detachably provided at the nozzle of the welding gun (1); the fixing member (21) can rotate around the nozzle of the welding gun (1); mirror-symmetrical movable plates (22) are rotatably provided on both side walls of the fixing member (21); and an adjustment component capable of controlling two movable plates (22) to adjust the same angle is provided on the fixing member (21).

2. A welding device for high-altitude operation according to claim 1, characterized in that: The adjustment assembly comprises a hollow box body (23) arranged on a side of the fixing member (21) away from the welding end of the welding gun (1); the top of the hollow box body (23) is threadedly provided with an adjustment screw (24) inserted into the hollow box body (23); one end of the adjustment screw (24) located in the hollow box body (23) is rotatably provided with a pressure plate (25) capable of moving up and down in the hollow box body (23); two oil storage bags (26) located at the bottom of the pressure plate (25) are arranged in the hollow box body (23); an oil delivery pipe (27) connected to the oil storage bag (26) is arranged on the oil storage bag (26); and a foldable telescopic pipe (28) for pushing the movable plate (22) to rotate around the fixing member (21) is arranged at one end of the oil delivery pipe (27) away from the oil storage bag (26).

3. A welding device for high-altitude operation according to claim 1, characterized in that: A plurality of balls (3) for reducing the resistance of the movable plate (22) to move up and down are arranged on the side of the movable plate (22) away from the foldable telescopic tube (28).

4. A welding device for high-altitude operation according to claim 1, characterized in that: An auxiliary limiting assembly (4) for limiting the downward tilt angle of the welding gun (1) is arranged at the bottom of the fixing member (21), and the auxiliary limiting assembly (4) comprises a support rod detachably arranged at the bottom of the fixing member (21), and a roller for connecting with the weld is rotatably arranged at one end of the support rod away from the fixing member (21).

5. A welding device for high-altitude operation according to claim 4, characterized in that: The end of the support rod away from the fixing member (21) is also provided with a knocking assembly (5) for knocking off welding slag at the weld seam, the knocking assembly (5) comprises a lever (51) rotatably arranged on the support rod through a torsion spring, the end of the lever (51) away from the support rod is provided with a knocking ball (52), the knocking assembly (5) further comprises a cam (53) arranged on the roller shaft and capable of rotating synchronously with the roller, the cam (53) is in contact with the end of the lever (51) away from the knocking ball (52), and the axis of the lever (51) is located at the bottom of the axis of the roller; When the torsion spring is in a natural state, the striking ball (52) and the roller are in contact with the welding seam at the same time, and the distance between the axis center lines of the shifting rod (51) and the cam (53) is the smallest.

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