Steel pipe shear key fillet weld profiling welding device

By designing the steel pipe shear key corner weld profiling welding device, and using structures such as rotary adjustment knobs and guide profiling support wheels, the problems of low efficiency of existing devices and poor weld morphology are solved, and efficient and stable welding effects are achieved.

CN223250885UActive Publication Date: 2025-08-22GUANGZHOU ZHUJIANG MASCH TOOL WORKS CO LTD
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Patent Information

Application Number
CN202422520187.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-17
Publication Date
2025-08-22
Estimated Expiration
2034-10-17

AI Technical Summary

Technical Problem

The existing welding devices are inefficient and have poor weld morphology when welding steel pipe shear bonds, which often leads to welding quality problems and cannot meet the requirements of the delivery date, which has adverse effects on use.

Method used

A steel pipe shear key corner weld contour welding device is designed. The horizontal position is adjusted through rotary adjustment knob and gear, the welding torch fixes bolts fixes the welding torch, the guided contour support wheel is closely fitted with the shear key, and the height of the vertical guide connecting the long hole plate is adjusted. The telescopic spring and limiting rod are used to prevent deviation, so as to achieve accurate adjustment and stable welding of the welding torch.

Benefits of technology

It improves welding quality, reduces appearance treatment work, prevents deviation during welding, and significantly improves welding efficiency and morphological quality of the weld.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223250885U_ABST
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Abstract

The utility model discloses a steel pipe shear key fillet weld profiling welding device, which relates to the technical field of welding devices and comprises a horizontal adjusting support, two groups of welding gun fixing sleeves are symmetrically arranged on the outer surface of the front end of the horizontal adjusting support, and welding guns are arranged in the welding gun fixing sleeves. A vertical sliding block fixing frame is arranged at the front end of the horizontal adjusting support, a rotary adjusting knob is arranged at the rear end of the vertical sliding block fixing frame, a gear is arranged below the rotary adjusting knob, a first LGB6 sliding block is arranged on the inner side of the vertical sliding block fixing frame, and a second LGB6 sliding block is arranged on the outer side of the first LGB6 sliding block. A horizontal guide rail fixing frame is arranged above the vertical sliding block fixing frame. According to the steel pipe shear key fillet weld profiling welding device, the steel pipe shear key fillet weld profiling welding device can be stably ridden above a reinforcing steel bar of a shear key through the arranged guiding profiling supporting wheel, and workers can conveniently conduct angle adjustment according to welding requirements through the arranged welding gun fixing sleeve and the arranged welding gun angle fixing bolt.
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Description

Technical Field

[0001] The utility model relates to the technical field of welding devices, in particular to a steel pipe shear key fillet weld profiling welding device. Background Art

[0002] With the large-scale application of steel pipe piles in offshore platforms, in order to ensure the close bonding between grouting cement and steel pipes, the design of shear keys on the inner and outer surfaces of steel pipes is increasing. Due to the small size of shear keys, submerged arc welding with high heat input is prone to edge melting, and gas shielded welding with low heat input has become the first choice.

[0003] When installing and using existing welding devices, conventional gas shielded welding is performed by one person using a single gun and adopts semi-automatic welding. The welding efficiency is low and the weld appearance is poor. Customers often complain about welding quality problems and failure to meet delivery dates, which has a certain adverse impact on people's use process. In order to address the shortcomings of the existing technology, we propose a steel pipe shear key fillet weld profiling welding device. Utility Model Content

[0004] The main purpose of the utility model is to provide a steel pipe shear key fillet weld profiling welding device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A steel pipe shear key fillet weld profiling welding device comprises a horizontal adjustment bracket, two groups of welding gun fixing sleeves are symmetrically arranged on the front end outer surface of the horizontal adjustment bracket, welding gun angle fixing bolts are arranged between the welding gun fixing sleeve and the horizontal adjustment bracket, welding gun fixing bolts are arranged on the outside of the welding gun fixing sleeve, a welding gun is arranged inside the welding gun fixing sleeve, a vertical slider fixing bracket is arranged at the front end of the horizontal adjustment bracket, the horizontal adjustment bracket passes through the rear end inner wall of the vertical slider fixing bracket, a rotary adjustment knob is arranged at the rear end of the vertical slider fixing bracket, a gear is arranged below the rotary adjustment knob, the gear is meshed with the horizontal adjustment bracket, a first LGB6 slider is arranged on the inner side of the vertical slider fixing bracket, and a horizontal guide rail fixing bracket is arranged above the vertical slider fixing bracket.

[0007] Preferably, the front end outer surface of the horizontal guide rail fixing frame is provided with a horizontal LGD6 guide rail, the front end of the horizontal guide rail fixing frame is provided with a vertical guide rail connecting the long hole plate, and the rear end outer surface of the vertical guide rail connecting the long hole plate is provided with a second LGB6 slider, and the second LGB6 slider slides on the outer side of the horizontal LGD6 guide rail, and the inner wall of the vertical guide rail connecting the long hole plate is symmetrically provided with a slide groove, and the front end outer surface of the vertical guide rail connecting the long hole plate is provided with a vertical LGD6 guide rail. The vertical LGD6 guide rail slides inside the first LGB6 slider, and the front end outer surface of the vertical LGD6 guide rail is provided with a fixing block, and the upper end outer surface of the first LGB6 slider is provided with a telescopic spring and a limit rod, and the telescopic spring is provided on the outside of the limit rod, and a support plate is provided below the vertical slider fixing frame, and a guide contour support wheel is provided on the inner side of the support plate, and a steel pipe is provided below the vertical slider fixing frame, and a shear key is provided on the outside of the steel pipe, and the guide contour support wheel rolls on the outside of the shear key.

[0008] Preferably, the welding gun fixing sleeve is rotatably connected to the horizontal adjustment bracket via a set welding gun angle fixing bolt, the welding gun is detachably connected to the welding gun fixing sleeve via a set welding gun fixing bolt, the gear is fixedly arranged below the rotary adjustment knob, and the rotary adjustment knob is rotatably connected to the vertical slider fixing frame.

[0009] Preferably, the horizontal adjustment bracket slides at the rear end of the vertical slider fixing frame through a rotary adjustment knob and a gear, and the first LGB6 slider is fixedly arranged inside the vertical slider fixing frame.

[0010] Preferably, the horizontal LGD6 guide rail is fixed on the front end outer surface of the horizontal guide rail fixing frame, the second LGB6 slider is fixed on the rear end outer surface of the vertical guide rail connecting the long hole plate, the vertical guide rail connecting the long hole plate is slidably connected to the horizontal guide rail fixing frame through the set second LGB6 slider and the horizontal LGD6 guide rail, and the vertical LGD6 guide rail is fixed on the front end outer surface of the vertical guide rail connecting the long hole plate.

[0011] Preferably, the fixed block is fixedly arranged on the front end outer surface of the vertical LGD6 guide rail, the limit rod is fixedly arranged on the upper end outer surface of the first LGB6 slider, the limit rod passes through the inner wall of the fixed block, the welding gun is detachably connected to the limit rod, the support plate is fixedly arranged below the vertical slider fixing frame, and the guide contour support wheel is rotatably connected to the support plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. In the utility model, the rotary adjustment knob and gear are provided to facilitate the staff to adjust the left and right horizontal positions of the horizontal adjustment bracket, the welding gun fixing bolt is provided to facilitate the staff to fix the welding gun and the welding gun fixing sleeve, and the welding gun angle fixing bolt is provided to facilitate the staff to adjust the welding angle of the welding gun according to work requirements, thereby reducing the subsequent appearance processing work and significantly improving the welding quality. The guide contoured support wheel is provided to fit closely with the shear key to prevent deviation during welding.

[0014] 2. In the present invention, the height of the vertical guide rail connecting the long hole plate is adjusted, and the guide contoured support wheel is squeezed by the provided telescopic spring to make it fit closely with the shear key. The provided horizontal LGD6 guide rail and the second LGB6 slider facilitate the staff to slide the vertical guide rail connecting the long hole plate according to the work, and adjust the position between the welding gun and the shear key. The telescopic spring is limited by the provided first LGB6 slider to prevent the telescopic spring from deflecting during the up and down movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the horizontal adjustment bracket of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the horizontal guide rail fixing frame of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the guide contour support wheel of the present utility model.

[0019] In the figure: 1. Horizontal adjustment bracket; 2. Welding gun fixing sleeve; 3. Welding gun angle fixing bolt; 4. Welding gun fixing bolt; 5. Vertical slider fixing bracket; 6. Telescopic spring; 7. Vertical LGD6 guide rail; 8. First LGB6 slider; 9. Horizontal guide rail fixing bracket; 10. Horizontal LGD6 guide rail; 11. Vertical guide rail connecting long hole plate; 12. Second LGB6 slider; 13. Slide; 14. Fixing block; 15. Limit rod; 16. Welding gun; 17. Rotary adjustment knob; 18. Gear; 19. Steel pipe; 20. Shear key; 21. Guide contour support wheel; 22. Support plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] Example 1, as Figures 1-4As shown, a steel pipe shear key fillet weld profiling welding device is shown, where a steel pipe 19 is placed under the welding device, and the shear key 20 is clamped inside the guide profiling support wheel 21. The groove inside the guide profiling support wheel 21 is consistent with the curvature of the shear key 20 to prevent deviation during welding. A rack is provided on the outer surface of the rear end of the horizontal adjustment bracket 1, and the gear 18 is engaged with the horizontal adjustment bracket 1. The staff controls the rotation of the gear 18 by turning the rotary adjustment knob 17, thereby adjusting the horizontal position of the horizontal adjustment bracket 1. The staff fixes the two welding guns 16 inside the two groups of welding gun fixing sleeves 2 respectively, fixes the welding guns 16 by the provided welding gun fixing bolts 4, adjusts the angle of the welding gun 16 according to work requirements, and adjusts the distance from the welding gun 16 to the groove at the same time, and then tightens the welding gun angle fixing bolt 3 to lock and fix the welding gun fixing sleeve 2.

[0022] Example 2, as Figures 1-4 As shown, a steel pipe shear key fillet weld profiling welding device, after the staff fixes the welding gun 16, adjusts the rotation speed of the steel pipe 19, adjusts the welding current and voltage, turns on the welding switch, and facilitates the staff to adjust the horizontal position of the vertical guide rail connecting the long hole plate 11 according to the position of the shear key 20 through the provided horizontal LGD6 guide rail 10 and the second LGB6 slider 12. The provided slide groove 13 facilitates the staff to adjust the height of the vertical guide rail connecting the long hole plate 11, so that the telescopic spring 6 is in a slightly pressured state, so that the guide profiling support wheel 21 is tightly fitted with the shear key 20. At the same time, the provided vertical LGD6 guide rail 7 facilitates the staff to control the vertical slider fixing frame 5 to slide up and down, and the vertical slider fixing frame 5 is connected to the vertical LGD6 guide rail 7 through the provided telescopic spring 6 and the limit rod 15. When the vertical slider fixing frame 5 slides up and down, the provided telescopic spring 6 pushes the guide profiling support wheel 21 to counteract the shear key 20, thereby facilitating the staff to perform welding.

[0023] It should be noted that the utility model is a steel pipe shear key fillet weld profiling welding device. When in use, the steel pipe 19 is placed under the welding device. The horizontal LGD6 guide rail 10 and the second LGB6 slider 12 are provided to facilitate the staff to adjust the horizontal position of the vertical guide rail connecting the long hole plate 11 according to the position of the shear key 20, so that the shear key 20 is below the guide profiling support wheel 21. The groove inside the guide profiling support wheel 21 is consistent with the curvature of the shear key 20 to prevent deviation during the welding process. The provided slide groove 13 is convenient for the staff to adjust the height of the vertical guide rail connecting the long hole plate 11, so that the telescopic spring 6 is in a slightly pressured state, and the vertical slider fixing frame 5 is squeezed, so that the guide profiling support wheel 21 is against the shear key 20, and then the two welding guns 16 are respectively fixed to the inside of the welding gun fixing sleeve 2, and the provided welding gun fixing bolt 4 is convenient for the staff The welding gun 16 is locked and fixed for easy installation and disassembly. The gear 18 is controlled to rotate by turning the rotary adjustment knob 17. Since a rack is provided on the outer surface of the rear end of the horizontal adjustment bracket 1, the staff controls the horizontal adjustment bracket 1 to move horizontally by turning the rotary adjustment knob 17, thereby controlling the horizontal movement of the welding gun 16 above the steel pipe 19, which is convenient for the staff to adjust the horizontal distance of the horizontal adjustment bracket 1 according to work requirements, adjust the angle of the welding gun 16 according to work requirements, and adjust the distance from the welding gun 16 to the groove at the same time, then tighten the welding gun angle fixing bolt 3, lock and fix the welding gun fixing sleeve 2, adjust the rotation speed of the steel pipe 19, adjust the welding current and voltage, turn on the welding switch, adjust the rotation speed of the steel pipe 19 and the welding current and voltage, turn on the welding switch, and complete the welding work during the rotation of the steel pipe 19.

[0024] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A profile welding device for steel pipe shear key fillet welds, comprising a horizontal adjustment bracket (1), characterized in that: The front end outer surface of the horizontal adjustment bracket (1) is symmetrically provided with two groups of welding gun fixing sleeves (2), a welding gun angle fixing bolt (3) is provided between the welding gun fixing sleeve (2) and the horizontal adjustment bracket (1), a welding gun fixing bolt (4) is provided on the outside of the welding gun fixing sleeve (2), a welding gun (16) is provided inside the welding gun fixing sleeve (2), a vertical slider fixing frame (5) is provided at the front end of the horizontal adjustment bracket (1), the horizontal adjustment bracket (1) passes through the rear end inner wall of the vertical slider fixing frame (5), a rotary adjustment knob (17) is provided at the rear end of the vertical slider fixing frame (5), a gear (18) is provided below the rotary adjustment knob (17), the gear (18) is engaged with the horizontal adjustment bracket (1), a first LGB6 slider (8) is provided on the inner side of the vertical slider fixing frame (5), and a horizontal guide rail fixing frame (9) is provided above the vertical slider fixing frame (5).

2. The steel pipe shear key fillet weld profiling welding device according to claim 1, characterized in that: The front end outer surface of the horizontal guide rail fixing frame (9) is provided with a horizontal LGD6 guide rail (10), the front end of the horizontal guide rail fixing frame (9) is provided with a vertical guide rail connecting the long hole plate (11), the rear end outer surface of the vertical guide rail connecting the long hole plate (11) is provided with a second LGB6 slider (12), the second LGB6 slider (12) slides on the outside of the horizontal LGD6 guide rail (10), the inner wall of the vertical guide rail connecting the long hole plate (11) is symmetrically provided with a slide groove (13), the front end outer surface of the vertical guide rail connecting the long hole plate (11) is provided with a vertical LGD6 guide rail (7), the vertical LGD6 guide rail (7) is provided on the first LGB6 slider ( 8), the front end outer surface of the vertical LGD6 guide rail (7) is provided with a fixed block (14), the upper end outer surface of the first LGB6 slider (8) is provided with a telescopic spring (6) and a limit rod (15), the telescopic spring (6) is provided on the outside of the limit rod (15), a support plate (22) is provided below the vertical slider fixing frame (5), a guide profiling support wheel (21) is provided on the inner side of the support plate (22), a steel pipe (19) is provided below the vertical slider fixing frame (5), a shear key (20) is provided on the outer side of the steel pipe (19), and the guide profiling support wheel (21) rolls on the outer side of the shear key (20).

3. The steel pipe shear key fillet weld profiling welding device according to claim 1, characterized in that: The welding gun fixing sleeve (2) is rotatably connected to the horizontal adjustment bracket (1) via a welding gun angle fixing bolt (3); the welding gun (16) is detachably connected to the welding gun fixing sleeve (2) via a welding gun fixing bolt (4); the gear (18) is fixedly arranged below a rotary adjustment knob (17); and the rotary adjustment knob (17) is rotatably connected to a vertical slider fixing bracket (5).

4. The steel pipe shear key fillet weld profiling welding device according to claim 1, characterized in that: The horizontal adjustment bracket (1) slides on the rear end of the vertical slider fixing frame (5) through the provided rotary adjustment knob (17) and gear (18), and the first LGB6 slider (8) is fixedly provided inside the vertical slider fixing frame (5).

5. The steel pipe shear key fillet weld profiling welding device according to claim 2, characterized in that: The horizontal LGD6 guide rail (10) is fixedly arranged on the front outer surface of the horizontal guide rail fixing frame (9), the second LGB6 slider (12) is fixedly arranged on the rear outer surface of the vertical guide rail connecting the long hole plate (11), the vertical guide rail connecting the long hole plate (11) is slidably connected to the horizontal guide rail fixing frame (9) through the second LGB6 slider (12) and the horizontal LGD6 guide rail (10), and the vertical LGD6 guide rail (7) is fixedly arranged on the front outer surface of the vertical guide rail connecting the long hole plate (11).

6. The steel pipe shear key fillet weld profiling welding device according to claim 2, characterized in that: The fixing block (14) is fixedly arranged on the front end outer surface of the vertical LGD6 guide rail (7), the limiting rod (15) is fixedly arranged on the upper end outer surface of the first LGB6 slider (8), the limiting rod (15) passes through the inner wall of the fixing block (14), the welding gun (16) is detachably connected to the limiting rod (15), the support plate (22) is fixedly arranged below the vertical slider fixing frame (5), and the guide contour support wheel (21) is rotatably connected to the support plate (22).

Citation Information

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