Reinforcing welding mechanism for local corrosion area of titanium pipe orifice

Abstract

The utility model relates to the technical field of welding equipment, and discloses a titanium pipe orifice local corrosion area reinforcement welding mechanism, which comprises a rack, a power supply line, a welding gun main body and a titanium pipe main body, a fixing mechanism is arranged on the rack, an auxiliary mechanism is arranged on the fixing mechanism, the fixing mechanism comprises a worm, and the worm is connected with the welding gun main body. The worm is rotationally connected to the inner wall of the rear side of the rack through a bearing, the front end of the worm is fixedly connected with an adjusting disc, the worm is connected with a worm gear in a meshed mode, an inner ring of the worm gear is fixedly connected with a bidirectional threaded rod, the bidirectional threaded rod is in threaded connection with an adjusting plate, and the outer wall of the front side of the adjusting plate is fixedly connected with a clamping plate. Arc-shaped teeth are hinged to the inner walls of the bottoms of the clamping plates. According to the utility model, titanium pipelines with different diameters are bidirectionally clamped and fixed by arranging the worm, the arc-shaped teeth and other structures, so that the welding quality is prevented from being influenced by cracks at the welding part due to dislocation and looseness of butt joint of welding seams in the welding process.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding mechanism for reinforcing localized corrosion zones at titanium pipe openings. Background Technology

[0002] The design and implementation of the welding mechanism for reinforcing the local corrosion zone of titanium pipe ends need to fully consider the characteristics of titanium, including its light weight, high strength, corrosion resistance, and high affinity of titanium for gases such as hydrogen, oxygen, and nitrogen during the welding process.

[0003] After the reinforcement welding is completed, the weld joint needs to be subjected to necessary heat treatment and surface treatment. Heat treatment can eliminate residual stress and structural changes generated during the welding process, and improve the performance and stability of the weld joint. Visual inspection mainly checks whether there are defects such as cracks, porosity, and slag inclusions on the weld surface. Color inspection judges whether the argon gas protection effect is up to standard by observing the color change of the titanium weld surface. Radiographic testing can detect whether there are defects such as cracks and lack of fusion inside the weld.

[0004] The welding equipment has the following defects: titanium and its alloys are prone to react with impurities such as oxygen, nitrogen and hydrogen in the atmosphere at high temperatures, which leads to embrittlement of the weld joint. If the titanium pipe end is not fixed in both directions during the welding process, cracks and misalignments will easily appear on the weld surface, and the welding quality will be reduced. Therefore, a welding mechanism to reinforce the local corrosion zone of the titanium pipe end is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a welding mechanism for reinforcing the local corrosion zone of titanium pipe openings, aiming to improve the problem that existing technologies, such as not fixing the titanium pipe openings in both directions during the welding process, can easily lead to cracks and misalignments on the weld surface.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a welding mechanism for reinforcing the local corrosion zone of a titanium pipe opening, comprising a frame, a power supply line, a welding gun body, and a titanium pipe body. A fixing mechanism is provided on the frame, and an auxiliary mechanism is provided on the fixing mechanism. The fixing mechanism includes a worm gear, which is rotatably connected to the rear inner wall of the frame via a bearing. An adjusting disc is fixedly connected to the front end of the worm gear, and a worm wheel is meshed on the worm gear. A bidirectional threaded rod is fixedly connected to the inner ring of the worm wheel, and an adjusting plate is threadedly connected to the bidirectional threaded rod. A clamping plate is fixedly connected to the front outer wall of the adjusting plate, and an arc-shaped tooth is hinged to the bottom inner wall of the clamping plate.

[0007] As a further description of the above technical solution: the auxiliary mechanism includes a hexagonal opening, which is opened on the rear inner wall of the adjusting plate. A hexagonal frame is slidably connected to the inner wall of the inner ring of the hexagonal opening. A movable plate is slidably connected to the rear inner wall of the adjusting plate. A plug rod is fixedly connected to the right outer wall of the movable plate. A telescopic spring is fixedly connected to the left outer wall of the movable plate. A secondary plate is slidably connected to the rear inner wall of the adjusting plate.

[0008] As a further description of the above technical solution: there are two adjustment plates, which are respectively threaded to the outer side wall of the bidirectional threaded rod, and the two adjustment plates are symmetrical to each other.

[0009] As a further description of the above technical solution: there are four clamping plates, and the four clamping plates are respectively fixedly connected to the front outer wall of the adjusting plate. The arc-shaped teeth are fixedly connected to the outer wall of the side of the titanium tube body with a frosted pad.

[0010] As a further description of the above technical solution: there are several arc-shaped teeth, and the several arc-shaped teeth are respectively hinged to the bottom inner wall of the clamping plate, and the arc-shaped teeth are in contact with the outer side wall of the titanium tube body.

[0011] As a further description of the above technical solution: the hexagonal frame is fixedly connected to the rear outer wall of the clamping plate, and the insertion rod is snapped into the inner side wall of the hexagonal frame.

[0012] As a further description of the above technical solution: there are four insertion rods, which are respectively fixedly connected to the outer side walls of the sub-plate and the movable plate, and the end of the telescopic spring away from the movable plate is fixedly connected to the outer right side wall of the sub-plate.

[0013] As a further description of the above technical solution: the power supply line is fixedly connected to the inner wall of the front side of the frame, the welding gun body is fixedly connected to the front end of the power supply line, and the titanium tube body is in contact with the outer wall of the side of the arc-shaped tooth.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, by setting up structures such as worm gear, bidirectional threaded rod, and arc-shaped teeth, titanium pipes of different diameters are clamped and fixed in both directions to prevent misalignment and loosening of the weld joint during the welding process, which would easily lead to cracks at the weld joint and affect the welding quality.

[0016] 2. In this utility model, by setting up structures such as hexagonal openings, hexagonal frames, and movable plates, when the arc-shaped teeth or clamps are deformed or aged, individual damaged clamps or arc-shaped teeth can be easily disassembled and assembled, reducing the maintenance cost of replacing the whole. Attached Figure Description

[0017] Figure 1This is a schematic front view of the overall front view of the welding mechanism for reinforcing the localized corrosion zone of the titanium pipe opening proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the overall rear side of the welding mechanism for reinforcing the local corrosion zone of the titanium pipe opening proposed in this utility model.

[0019] Figure 3 This is a cross-sectional schematic diagram of the welding mechanism for reinforcing the local corrosion zone of a titanium pipe opening proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the auxiliary mechanism for the welding mechanism that reinforces the local corrosion zone of the titanium pipe opening proposed in this utility model.

[0021] Legend:

[0022] 1. Frame; 2. Power supply line; 3. Welding gun body; 4. Titanium tube body; 5. Fixing mechanism; 51. Worm gear; 52. Adjusting disc; 53. Worm wheel; 54. Two-way threaded rod; 55. Adjusting plate; 56. Clamping plate; 57. Arc tooth; 6. Auxiliary mechanism; 61. Hexagonal opening; 62. Hexagonal frame; 63. Movable plate; 64. Insert rod; 65. Telescopic spring; 66. Sub-plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figures 1-3This utility model provides an embodiment of a welding mechanism for reinforcing locally corroded areas of titanium pipe openings. The mechanism includes a frame 1, a power supply line 2, a welding gun body 3, and a titanium pipe body 4. A fixing mechanism 5 is mounted on the frame 1, and an auxiliary mechanism 6 is mounted on the fixing mechanism 5. The fixing mechanism 5 includes a worm gear 51, which is rotatably connected to the rear inner wall of the frame 1 via a bearing. An adjusting disc 52 is fixedly connected to the front end of the worm gear 51. By configuring the worm gear 51 and a worm wheel 53 to cooperate with each other, the worm wheel 53 has a certain self-locking property when the worm gear 51 is not rotating. To prevent the bidirectional threaded rod 54 from rotating, the above structural principle is existing technology and therefore will not be elaborated further. A worm wheel 53 is meshed on the worm 51, and a bidirectional threaded rod 54 is fixedly connected to the inner ring of the worm wheel 53. By setting the bidirectional threaded rod 54, two adjusting plates 55 are simultaneously driven to move closer to each other or unfold. Adjusting plates 55 are threadedly connected to the bidirectional threaded rod 54. The adjusting plates 55 are slidably connected to the inner walls of the left and right sides of the frame 1. A clamping plate 56 is fixedly connected to the outer front wall of the adjusting plate 55. An arc-shaped tooth 57 is hinged to the inner bottom wall of the clamping plate 56.

[0025] Reference Figures 2-4 There are two adjusting plates 55, which are threadedly connected to the outer side wall of the bidirectional threaded rod 54. The two adjusting plates 55 are symmetrical to each other. There are four clamping plates 56, which are fixedly connected to the front outer wall of the adjusting plates 55. A frosted pad is fixedly connected to the outer side wall of the arc-shaped teeth 57 near the titanium tube body 4. The frosted pad increases the surface friction of the arc-shaped teeth 57. There are several arc-shaped teeth 57, which are hinged to the bottom inner wall of the clamping plates 56. The arc-shaped teeth 57 are in contact with the outer side wall of the titanium tube body 4. The power supply line 2 is fixedly connected to the front inner wall of the frame 1. The welding gun body 3 is fixedly connected to the front end of the power supply line 2. The titanium tube body 4 is in contact with the outer side wall of the arc-shaped teeth 57. The arc-shaped teeth 57 are set to adaptively attach according to the curvature of the outer surface of the titanium tube body 4.

[0026] Reference Figures 3-4The auxiliary mechanism 6 includes a hexagonal opening 61, which is located on the rear inner wall of the adjusting plate 55. A hexagonal frame 62 is slidably connected to the inner wall of the hexagonal opening 61. By setting the hexagonal frame 62 and the hexagonal opening 61, the hexagonal frame 62 is horizontally limited. A movable plate 63 is slidably connected to the rear inner wall of the adjusting plate 55. A plug rod 64 is fixedly connected to the right outer wall of the movable plate 63, and a telescopic spring 65 is fixedly connected to the left outer wall of the movable plate 63. The telescopic spring 65 is used to control the movement of the movable plate 63. 3. A continuous thrust is generated. A secondary plate 66 is slidably connected to the inner rear wall of the adjusting plate 55. A hexagonal frame 62 is fixedly connected to the outer rear wall of the clamping plate 56. A plug rod 64 is snapped into the inner side wall of the hexagonal frame 62. There are four plug rods 64 in total. The four plug rods 64 are fixedly connected to the outer side walls of the secondary plate 66 and the movable plate 63 respectively. The plug rods 64 are moved and adjusted by setting the secondary plate 66 and the movable plate 63. The end of the telescopic spring 65 away from the movable plate 63 is fixedly connected to the outer right side wall of the secondary plate 66.

[0027] Working principle: Depending on the diameter of the titanium tube, rotating the adjusting disc 52 causes the worm gear 51 to rotate. The rotation of the worm gear 51 drives the worm wheel 53 to rotate, which in turn drives the bidirectional threaded rod 54 to rotate. The rotation of the bidirectional threaded rod 54 causes the two adjusting plates 55 to move closer together, making the arc-shaped teeth 57 on the adjusting plates 55 contact the outer surface of the titanium tube. This causes the arc-shaped teeth 57 to rotate slightly and adhere to the surface of the titanium tube, maximizing the clamping surface between the arc-shaped teeth 57 and the titanium tube. This prevents the titanium tube body 4 from misaligning during welding of the welding gun body 3, thus affecting the welding quality. At the same time, when a single arc-shaped tooth 57 or clamping plate 56 rusts or bends and requires maintenance, the movable plate 63 is pulled to move the insertion rod 64. The insertion rod 64 moves and separates from the hexagonal frame 62. Then, the clamping plate 56 is pulled to remove the hexagonal frame 62 from the hexagonal opening 61, allowing for convenient replacement of a single clamping plate 56.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding mechanism for reinforcing localized corrosion zones at the ends of titanium pipes, comprising a frame (1), a power supply line (2), a welding gun body (3), and a titanium pipe body (4), characterized in that: The rack (1) is provided with a fixing mechanism (5), and the fixing mechanism (5) is provided with an auxiliary mechanism (6); The fixing mechanism (5) comprises a worm (51), the worm (51) is rotatably connected to the rear inner wall of the rack (1) through a bearing, the front end of the worm (51) is fixedly connected with an adjusting disc (52), the worm (51) is meshingly connected with a worm gear (53), the inner ring of the worm gear (53) is fixedly connected with a bidirectional threaded rod (54), the bidirectional threaded rod (54) is threadedly connected with an adjusting plate (55), the front outer wall of the adjusting plate (55) is fixedly connected with a clamping plate (56), and the bottom inner wall of the clamping plate (56) is hingedly connected with an arc-shaped tooth (57).

2. The mechanism for reinforcing welding of a local corrosion area of a titanium pipe mouth according to claim 1, characterized in that: The auxiliary mechanism (6) comprises a hexagonal port (61), the hexagonal port (61) is formed in the rear inner wall of the adjusting plate (55), the inner ring inner wall of the hexagonal port (61) is slidably connected with a hexagonal frame (62), the rear inner wall of the adjusting plate (55) is slidably connected with a movable plate (63), the right outer wall of the movable plate (63) is fixedly connected with a plug rod (64), the left outer wall of the movable plate (63) is fixedly connected with a telescopic spring (65), and the rear inner wall of the adjusting plate (55) is slidably connected with a secondary plate (66).

3. The mechanism for reinforcing welding of a local corrosion area of a titanium pipe mouth according to claim 1, characterized in that: The adjusting plate (55) is provided with two, and the two adjusting plates (55) are respectively threadedly connected to the side outer walls of the bidirectional threaded rods (54) and are respectively symmetrical.

4. The mechanism for reinforcing welding of a local corrosion area of a titanium pipe mouth according to claim 1, characterized in that: The clamping plate (56) is provided with four, the four clamping plates (56) are respectively fixedly connected to the front outer walls of the adjusting plates (55), and the arc-shaped teeth (57) are fixedly connected to the side outer walls of the titanium pipe bodies (4).

5. The mechanism for reinforcing welding of a local corrosion area of a titanium pipe mouth according to claim 1, characterized in that: The arc-shaped teeth (57) are provided with a plurality of, the plurality of arc-shaped teeth (57) are respectively hingedly connected to the bottom inner walls of the clamping plates (56), and the arc-shaped teeth (57) are connected to the side outer walls of the titanium pipe bodies (4).

6. The mechanism for reinforcing welding of a local corrosion area of a titanium pipe mouth according to claim 2, characterized in that: The hexagonal frame (62) is fixedly connected to the rear outer wall of the clamping plate (56), and the plug rod (64) is clamped to the side inner wall of the hexagonal frame (62).

7. The mechanism for reinforcing the local corrosion area of the titanium pipe mouth according to claim 2, characterized in that: The plug rod (64) is provided with four, the four plug rods (64) are respectively fixedly connected to the side outer walls of the secondary plates (66) and the movable plates (63), and the telescopic spring (65) is fixedly connected to the right outer wall of the secondary plate (66) away from the movable plate (63).

8. The mechanism for reinforcing the weld of the local corrosion area of the titanium pipe mouth according to claim 1, characterized in that: The power supply line (2) is fixedly connected to the front inner wall of the rack (1), the welding gun body (3) is fixedly connected to the front end of the power supply line (2), and the titanium pipe body (4) is connected to the side outer wall of the arc-shaped tooth (57).

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