Single-gun head welding gun angle adjuster

Abstract

The utility model relates to the technical field of single-gun-head welding gun angle adjusting devices, in particular to a single-gun-head welding gun angle adjuster which comprises an angle swing motor, a dry stretching motor and a rotating mechanism, the rotating mechanism is installed between the angle swing motor and the dry stretching motor, and the rotating mechanism comprises a hinge. The outer sides of the two sides of the hinge are detachably installed together with the angle swing motor and the dry stretching motor respectively. The angle swing mechanism is reasonable and compact in structure and convenient to use, the angle swing motor and the dry extension motor can rotate relatively by connecting the hinge between the angle swing motor and the dry extension motor, so that the swing angle of the welding gun is adjusted, the welding gun enters an inclined pull state while swinging horizontally, the thickness of each welding layer of a welding bead tends to be uniform when a steep slope is welded, and the welding quality is improved. And the problem that molten iron at the lower part of a welding seam is stacked to form a thick lower part and a thin upper part during welding due to gravity is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of single-gun handpiece welding gun angle adjustment devices, in particular to a single-gun handpiece welding gun angle adjuster. Background Art

[0002] At present, the welding machine head for welding natural gas pipelines in mountainous areas is suitable for welding girth welds with a slope of less than 25°. However, the weld appearance is poor and the weld pass rate is low. Especially when welding girth welds in steep slopes of 25°-45°, the molten iron in the molten pool in the groove is seriously affected by gravity, and accumulation is formed at the bottom of the weld (such as Figure 1 , the dotted line indicates that the weld layer accumulates downward after welding), resulting in the weld layer being thick at the bottom and thin at the top, and the weld bead above the cover layer is likely to be lower than the base material. Too thick a weld layer will cause welding defects such as slag inclusion and unmelted metal. Summary of the Invention

[0003] The utility model provides a single-gun welding gun angle adjuster, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the existing problems of time-consuming and labor-intensive, low construction efficiency and potential safety hazards.

[0004] The technical solution of the present utility model is achieved through the following measures: a single-gun welding gun angle adjuster includes an angular swing motor, a dry extension motor and a rotating mechanism, a rotating mechanism is installed between the angular swing motor and the dry extension motor, and the rotating mechanism includes a hinge, and the outer sides of both sides of the hinge are detachably installed with the angular swing motor and the dry extension motor respectively.

[0005] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution:

[0006] The above-mentioned rotating mechanism may further include a locking device, and the hinge is equipped with a locking device capable of limiting the movement of the hinge.

[0007] The above-mentioned locking device may include a fixing ring, a stud and a nut. An arc-shaped fixing ring is provided on the front side of the hinge, and an arc-shaped sliding groove running through the front and back is provided in the middle of the fixing ring. Studs are fixedly installed at the front ends of both sides of the hinge, the front ends of the two studs are located in the sliding groove, and nuts are installed at the front ends of the two studs.

[0008] The nut may be a butterfly nut.

[0009] The utility model has a reasonable and compact structure and is easy to use. By connecting the angle swing motor and the dry extension motor with a hinge, the angle swing motor and the dry extension motor can be made to rotate relative to each other, thereby adjusting the swing angle of the welding gun, so that the welding gun can be swung horizontally and enter an oblique pulling state at the same time, and the thickness of each weld layer of the weld can be made uniform when welding on a steep slope, avoiding the problem of molten iron accumulating at the bottom of the weld due to the influence of gravity during welding, forming a thick lower part and a thin upper part. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Attachment Figure 1 It is a schematic diagram of the main structure of the background technology.

[0011] Attachment Figure 2 This is a schematic diagram of the main structure of an embodiment of the present utility model.

[0012] The codes in the attached figure are: 1 for the angular swing motor, 2 for the dry extension motor, 3 for the hinge, 4 for the fixing ring, 5 for the stud, 6 for the nut, 7 for the slide, 8 for the pipe, 9 for the welding layer, and 10 for the welding gun angle. DETAILED DESCRIPTION

[0013] The present invention is not limited by the following embodiments, and specific implementation methods can be determined based on the technical solution of the present invention and actual conditions.

[0014] In this utility model, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 For example, the positional relationships of front, back, up, down, left, and right are determined according to the layout directions of the drawings in the specification.

[0015] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0016] Example 1: As shown in the attached Figure 2 As shown, the single-gun welding gun angle adjuster includes an angle swing motor 1, a dry extension motor 2 and a rotating mechanism. A rotating mechanism is installed between the angle swing motor 1 and the dry extension motor 2. The rotating mechanism includes a hinge 3. The outer sides of the hinge 3 are detachably installed with the angle swing motor 1 and the dry extension motor 2 respectively.

[0017] The angular swing motor 1 controls the welding gun to swing along the axis of the pipe 8, and the dry extension motor 2 controls the distance between the welding gun and the weld. At present, the angular swing motor 1 and the dry extension motor 2 are fixed together by bolts, so the welding gun can only swing along the axis of the pipe 8. After installing the hinge 3, the angle of the angular swing motor 1 relative to the dry extension motor 2 can be adjusted, so that the welding gun can be adjusted to have a certain angle with the axial direction of the pipeline. Before arcing, the angle of the welding gun is adjusted by opening and closing the hinge 3. The welding gun swings horizontally and enters the oblique pulling state at the same time, so that the thickness of each weld layer 9 of the weld tends to be uniform, the weld surface is more beautiful, the molten iron and the groove in the molten pool can be fully melted, reducing welding defects such as slag inclusion and unmelted caused by excessive thickness of the weld layer 9, thereby improving the one-time qualified rate of welding.

[0018] The above-mentioned single-gun welding gun angle adjuster can be further optimized and / or improved according to actual needs:

[0019] Example 2: As shown in the attached Figure 2 As shown, the rotating mechanism further includes a locking device, and the hinge 3 is equipped with a locking device capable of limiting the movement of the hinge 3.

[0020] By providing a locking device, the opening and closing angle of the hinge 3 can be fixed, thereby fixing the axial angle between the welding gun and the pipeline.

[0021] Example 3: As shown in the attached Figure 2 As shown, the locking device includes a fixing ring 4, a stud 5 and a nut 6. An arc-shaped fixing ring 4 is provided on the front side of the hinge 3, and an arc-shaped sliding groove 7 is provided in the middle of the fixing ring 4 and passes through the front and back. Studs 5 are fixedly installed at the front ends of both sides of the hinge 3. The front parts of the two studs 5 are located in the sliding groove 7, and nuts 6 are installed at the front ends of the two studs 5.

[0022] When the hinge 3 is rotated, the stud 5 moves in the chute 7. After adjusting the angle, tighten the nut 6 to fix the hinge 3, and keep the welding gun angle 10 so that it will not rotate during welding.

[0023] Example 4: As shown in the attached Figure 2 As shown, the nut 6 is a butterfly nut. By arranging the butterfly nut, the hinge 3 can be manually adjusted without the aid of tools, which is more convenient.

[0024] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A single-gun welding gun angle adjuster, characterized in that It includes an angular swing motor, a dry extension motor and a rotating mechanism. The rotating mechanism is installed between the angular swing motor and the dry extension motor. The rotating mechanism includes hinges. The outer sides of the hinges are detachably installed with the angular swing motor and the dry extension motor respectively.

2. The single-gun welding gun angle adjuster according to claim 1 is characterized in that The rotating mechanism also includes a locking device, and the hinge is equipped with a locking device capable of limiting the movement of the hinge.

3. The single-gun welding gun angle adjuster according to claim 2 is characterized in that The locking device includes a fixing ring, a stud and a nut. An arc-shaped fixing ring is provided on the front side of the hinge, and an arc-shaped sliding groove is provided in the middle of the fixing ring, which runs through the front and back. Studs are fixedly installed at the front ends of both sides of the hinge. The front ends of the two studs are located in the sliding groove, and nuts are installed at the front ends of the two studs.

4. The single-gun welding gun angle adjuster according to claim 3 is characterized in that The nut is a butterfly nut.

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