Auxiliary submerged-arc welding device for small-diameter single-section inner opening and using method of auxiliary submerged-arc welding device

By designing a small-diameter single-section internal submerged arc welding auxiliary device, the problems of welding trolley wire pressing and welding wire falling are solved, the welding efficiency and quality are improved, the construction cost is reduced, and the labor intensity of the staff is alleviated.

CN120791086APending Publication Date: 2025-10-17CHINA PETROLEUM SEVENTH CONSTR CO +2
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Patent Information

Application Number
CN202511047169.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-29
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

During the welding process of the inner opening of a small-diameter single-section longitudinal seam, the welding trolley is prone to wire pressing or derailment, and the welding handle wire and control wire are prone to falling, resulting in welding quality problems and high labor costs. It also requires special personnel to supervise and has low efficiency.

Method used

A small-diameter single-section internal submerged arc welding auxiliary device is designed, which includes a support, a clamp and a sliding part. The sliding part is supported and fixed to the single section through connecting rings, hooks and other structures to prevent the welding trolley from pressing the wire and the welding wire from falling, reduce the falling of the welding wire, and reduce the impact on the welding trolley.

Benefits of technology

It effectively avoids the welding trolley from pressing the wire or derailing, prevents the welding wire from falling, improves welding efficiency and quality, reduces construction costs, and reduces the labor intensity of workers.

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Abstract

The invention relates to the technical field of welding auxiliary equipment, and discloses a small-diameter single-section inner opening submerged arc welding auxiliary device which comprises a supporting piece and a clamp, a connecting ring is arranged on the clamp, the end of the supporting piece is detachably connected with the connecting ring, a sliding piece is arranged on the supporting piece, and a lifting hook is arranged at the bottom of the sliding piece; the invention further discloses a using method of the auxiliary welding device for submerged-arc welding of the small-diameter single-section inner opening. The welding trolley can be prevented from pressing lines and even derailing, welding handle lines and control lines can be prevented from falling onto a welding bead which is just welded, a specially-assigned person is not needed for guarding, the welding efficiency and quality are effectively improved, the construction cost is reduced, and the labor intensity of workers is relieved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding auxiliary equipment, in particular to a small-diameter single-joint inner-arc welding auxiliary device and a using method thereof. BACKGROUND

[0002] In the construction project of petroleum and chemical industry, the small-diameter single-joint longitudinal seam inner-arc is usually welded by using automatic submerged arc welding. The submerged arc welding machine is a welding machine that uses the arc to burn under the welding agent layer for welding. It has the advantages of stable welding quality, high welding productivity, no arc light, and little smoke. It is the main welding machine in the manufacturing of pressure vessels, pipe sections, box beam column steel structures, etc. It is mainly composed of a power supply, a control cable and a trolley. Each part is very important. Only when they work well together can the advantages of submerged arc welding be fully utilized.

[0003] When welding a small-diameter single joint, the welding trolley enters the single joint through the track, and the welding wire and control wire are dragged by the trolley. Usually, two workers cooperate to weld, and one person is responsible for watching the welding wire and control wire.

[0004] There are at least the following problems in the prior art: first, the welding trolley may press the wire during welding, which may cause the welding trolley to deviate from the track and result in welding quality problems; second, the welding wire and control wire may fall onto the just welded weld, causing the welding wire and control wire to be burned and stuck, and thus the welding machine or control box circuit board may be burned; third, a person is needed to watch the welding wire and control wire, resulting in low productivity, low efficiency, high construction cost, and easy welding defects such as incomplete penetration and slag inclusion due to fatigue or negligence, which may increase the cost and time of subsequent repair. SUMMARY

[0005] The present application is directed to the deficiencies of the prior art, and a bathing device for pediatric nursing is developed. The present application can not only avoid the pressing of the welding trolley and even the deviation of the track, but also prevent the welding wire and control wire from falling onto the just welded weld. No special person is needed to watch, which effectively improves the welding efficiency and quality, reduces the construction cost, and reduces the labor intensity of the workers.

[0006] The technical solution of the present application to solve the technical problem is that: on the one hand, the embodiment of the present application provides a small-diameter single-joint inner-arc welding auxiliary device, which comprises a support and a clamp. A connecting ring is arranged on the clamp. The end of the support is detachably connected with the connecting ring. A sliding member is arranged on the support. A hook is arranged at the bottom of the sliding member.

[0007] As optimization, the support member comprises a first tensioning belt, a ratchet tensioner and a second tensioning belt, the first ends of the first and second tensioning belts are provided with first hooks, the second end of the first tensioning belt is connected with a fixed end of the ratchet tensioner, and the second end of the second tensioning belt is detachably connected with a ratchet movable end of the ratchet tensioner, and the sliding member is a pulley. By arranging the first and second tensioning belts and the first hooks, a hanging track can be formed for the sliding member to slide, and the assembly and disassembly are facilitated, and the single section can be adapted to different lengths. By arranging the ratchet tensioner, the first and second tensioning belts can be connected, and the second tensioning belt can be tightened, so that the falling degree of the submerged arc welding wire and the control wire is reduced during the hanging process.

[0008] As optimization, the support member comprises two groups of first sleeves and a plurality of groups of hanging rail assemblies, the plurality of groups of hanging rail assemblies are sequentially and detachably connected end to end, the first sleeves are arranged on the two end hanging rail assemblies, the first sleeves are provided with second hooks, the sliding member is a hanging rail roller, and the hanging rail roller is slidingly arranged in the hanging rail assembly. By arranging the hanging rail assembly, the assembly is facilitated, the supportability of the overall structure is good, and the falling of the submerged arc welding wire and the control wire is reduced during the hanging process. By arranging the first sleeves and the second hooks, the second hooks can be slid on the hanging rail assembly, and the positions of the second hooks can be adjusted according to the length of the single section, so that the second hooks can be connected with the connecting ring.

[0009] As optimization, the support member comprises a plurality of groups of cross rod assemblies, the plurality of groups of cross rod assemblies are sequentially and detachably connected end to end through threads, the second sleeves are arranged on the two end cross rod assemblies, the second sleeves are provided with third hooks, the sliding member is a sliding sleeve, and the sliding sleeve is arranged on the cross rod assembly. By arranging the plurality of groups of cross rod assemblies, the assembly and disassembly are facilitated, the supportability of the overall structure is good, and the falling of the submerged arc welding wire and the control wire is reduced during the sliding sleeve hanging and moving process.

[0010] As optimization, the bottom of the sliding member is rotatably provided with a universal ring, and the hook is arranged on the universal ring. By arranging the universal ring, the hook can be rotated, and the submerged arc welding wire and the control wire are conveniently placed and taken.

[0011] As optimization, the clamp comprises a U-shaped clamping body, a screw rod, a handle and a pad, the first group of side plates of the U-shaped clamping body are provided with threaded holes, the screw rod is arranged in the threaded hole, the handle and the pad are arranged at the two ends of the screw rod respectively, the pad is arranged between the two groups of side plates of the U-shaped clamping body, and the connecting ring is arranged on the second group of side plates of the U-shaped clamping body. By arranging the U-shaped clamping body, the single section can be clamped on the side wall; by arranging the screw rod, the position of the pad can be adjusted, and the single section can be clamped on the side wall by cooperating with the U-shaped clamping body to complete the fixation; by arranging the handle, the screw rod can be conveniently rotated by the worker; and by arranging the pad, the single section can be clamped on the side wall by cooperating with the U-shaped clamping body.

[0012] In another aspect, the embodiments of the present application provide a method for using a small-diameter single-joint internal opening submerged arc welding auxiliary device, comprising the following steps:

[0013] S1, fixing two groups of clamps at two ends of the single joint respectively;

[0014] S2, installing the sliding member on the support member;

[0015] S3, placing the support member into the single joint, and connecting the two groups of end heads of the support member with the two groups of connecting rings respectively;

[0016] S4, hanging the submerged arc welding handle wire and the control wire on the hooks for welding;

[0017] S5, after the welding is completed, removing the submerged arc welding handle wire and the control wire, and dismounting the support member and the clamps.

[0018] As an optimization, in step S1, the clamps are arranged between one quarter height and one half height of the single joint. After the submerged arc welding handle wire and the control wire are lifted, the normal movement of the welding trolley can be avoided.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] By arranging the support member, the sliding member can be supported; by arranging the clamps, the support member can be fixed to the single joint to provide a working space for the welding trolley; by arranging the connecting rings, the support member can be conveniently installed; by arranging the sliding member, the support member can slide along with the welding trolley; by arranging the hooks, the submerged arc welding handle wire and the control wire can be lifted to prevent affecting the movement of the welding trolley and to prevent the welding handle wire and the control wire from being scalded by the welding bead during the automatic welding process. The present application can not only avoid the wire pressing and even derailment of the welding trolley, but also prevent the welding handle wire and the control wire from falling onto the just-welded welding bead, without the need for special personnel to supervise, effectively improving the welding efficiency and quality, reducing the construction cost, and reducing the labor intensity of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application.

[0022] Figure 2 It is a schematic diagram of the overall structure of the first embodiment of the present application. Figure 1 It is a local enlarged view of area A in the middle.

[0023] Figure 3 It is a schematic diagram of the first embodiment of the present application in use.

[0024] Figure 4 It is a schematic diagram of the internal structure of the single joint of the first embodiment of the present application in use.

[0025] Figure 5 This is a flow chart of the method of using the first embodiment of the present invention.

[0026] In the figure: 1. Support member; 2. Clamp; 3. Connecting ring; 4. Sliding member; 5. Hook; 6. First tensioning belt; 7. Ratchet tensioner; 8. Second tensioning belt; 9. First hook; 10. Universal ring; 11. U-shaped clamp body; 12. Screw; 13. Handle; 14. Spacer. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, the present invention is described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0028] Example 1

[0029] Figures 1 to 4 As an embodiment of the present invention, Figures 1 to 4 As shown, a small-diameter single-section internal submerged arc welding auxiliary device includes a support member 1 and a clamp 2. The clamp 2 is provided with a connecting ring 3. The end of the support member 1 is detachably connected to the connecting ring 3. The support member 1 is provided with a sliding member 4. The bottom of the sliding member 4 is provided with a hook 5.

[0030] By setting the support 1, the sliding part 4 can be supported; by setting the clamp 2, the support 1 can be fixed to the single section to provide a working space for the welding trolley; by setting the connecting ring 3, the support 1 is easily installed; by setting the sliding part 4, it can slide along the welding trolley on the support 1; by setting the hook 5, the submerged arc welding handle wire and the control wire can be lifted to prevent affecting the movement of the welding trolley and prevent the welding bead from scalding the welding handle wire and the control wire during automatic welding.

[0031] like Figures 1 to 4 As shown, the support member 1 includes a first tensioning strap 6, a ratchet tensioner 7, and a second tensioning strap 8. The first ends of the first and second tensioning straps 6 and 8 are each provided with a first hook 9. The second ends of the first tensioning strap 6 are connected to the fixed end of the ratchet tensioner 7, and the second ends of the second tensioning strap 8 are detachably connected to the movable end of the ratchet of the ratchet tensioner 7. The length of the first tensioning strap 6 is shorter than that of the second tensioning strap 8, placing the ratchet tensioner 7 close to the first tensioning strap 6, making it easier for the operator to use the ratchet tensioner 7 and providing sufficient movement motivation for the slider 4, which is a movable pulley. The first tensioning strap 6, the second tensioning strap 8, and the first hook 9 form a hanging track for the slider 4 to slide, making assembly and disassembly convenient and suitable for single sections of different lengths. The ratchet tensioner 7 can connect the first and second tensioning straps 6, 8, and tighten the second tensioning strap 8, thereby reducing the degree of drop of the submerged arc welding handle line and control line during the hanging process.

[0032] like Figure 1As shown, the bottom of the sliding piece 4 is provided with a universal ring 10, and the hook 5 is arranged on the universal ring 10. By arranging the universal ring 10, the hook 5 can be rotated, and the submerged arc welding wire and the control wire can be conveniently taken out and put in.

[0033] As shown in the drawings, Figures 1 to 4 As shown, the clamp 2 includes a U-shaped clamp body 11, a screw rod 12, a handle 13 and a pad 14, the first group of side plates of the U-shaped clamp body 11 is provided with a threaded hole, the screw rod 12 is arranged in the threaded hole, the handle 13 and the pad 14 are arranged at two ends of the screw rod 12 respectively, the pad 14 is arranged between the two groups of side plates of the U-shaped clamp body 11, and the connecting ring 3 is arranged on the second group of side plates of the U-shaped clamp body 11. By arranging the U-shaped clamp body 11, the single section can be clamped on the side wall; by arranging the screw rod 12, the position of the pad 14 can be adjusted, and the single section can be clamped and fixed by cooperating with the U-shaped clamp body 11; by arranging the handle 13, the screw rod 12 can be conveniently rotated by the staff; by arranging the pad 14, the single section can be clamped by cooperating with the U-shaped clamp body 11.

[0034] Embodiment 2

[0035] The difference between the first embodiment and the second embodiment is that the support 1 includes two groups of first sleeves and a plurality of groups of suspension rail assemblies, the plurality of groups of suspension rail assemblies are sequentially and detachably connected in a head-to-tail manner, the first sleeves are arranged on the two ends of the suspension rail assemblies, the second hooks are arranged on the first sleeves, the sliding piece 4 is a suspension rail roller, the suspension rail roller is slidably arranged in the suspension rail assembly, and the locking bolts are arranged on the first sleeves to lock the positions of the first sleeves on the horizontal rod assemblies, so that the first sleeves are prevented from moving during the welding process. By arranging the suspension rail assemblies, the suspension rail assemblies can be conveniently assembled, the support of the overall structure is good, and the falling of the submerged arc welding wire and the control wire is reduced during the hanging process.

[0036] Embodiment 3

[0037] The difference between the first embodiment and the second embodiment is that the support 1 includes a plurality of groups of horizontal rod assemblies, the plurality of groups of horizontal rod assemblies are sequentially and detachably connected in a head-to-tail manner through threads, the second sleeves are arranged on the two ends of the horizontal rod assemblies, the third hooks are arranged on the second sleeves, the sliding piece 4 is a sliding sleeve, the sliding sleeve is arranged on the horizontal rod assembly, and the locking bolts are arranged on the second sleeves to lock the positions of the second sleeves on the horizontal rod assemblies, so that the second sleeves are prevented from moving during the welding process. By arranging the plurality of groups of horizontal rod assemblies, the plurality of groups of horizontal rod assemblies can be conveniently disassembled and assembled, the support of the overall structure is good, and the falling of the submerged arc welding wire and the control wire can be reduced during the hanging and moving of the sliding sleeve.

[0038] As shown in the drawings, Figure 5As shown, the embodiment of the application provides a method for using a small-diameter single-joint inner-port submerged arc welding auxiliary device, which is used for the small-diameter single-joint inner-port submerged arc welding auxiliary device described in embodiment 1, and comprises the following steps:

[0039] S1, fix two groups of clamps 2 at both ends of the single joint respectively, clamp the U-shaped clamp body 11 on the side wall between one quarter height and one half height of the single joint, then rotate the handle 13 to tighten the screw rod 12, move the cushion block 14 to the side wall of the single joint, and clamp the side wall of the single joint with the U-shaped clamp body 11;

[0040] S2, install the movable pulley on the second tensioning belt 8, then pass the second end of the second tensioning belt 8 through the movable end of the ratchet tensioner 7 to connect;

[0041] S3, put the first tensioning belt 6, the ratchet tensioner 7 and the second tensioning belt 8 into the single joint, connect the first hook 9 on the first tensioning belt 6 with the connecting ring 3 on one group of clamps 2, connect the first hook 9 on the second tensioning belt 8 with the connecting ring 3 on the other group of clamps 2, then use the ratchet tensioner 7 to tighten the second tensioning belt 8, so that the first tensioning belt 6 and the second tensioning belt 8 are taut, which can reduce the falling degree of the submerged arc welding handle wire and the control wire during hanging;

[0042] S4, hang the submerged arc welding handle wire and the control wire on the hook 5, and the welding trolley can be controlled by the worker to enter the single joint for welding, at this time, the submerged arc welding handle wire and the control wire will not fall to the bottom of the single joint when following the trolley;

[0043] S5, after welding, the worker removes the submerged arc welding handle wire and the control wire, then releases the ratchet tensioner 7, relaxes the first tensioning belt 6 and the second tensioning belt 8, removes the first hook 9 from the connecting ring 3, loosens the screw rod 12 by rotating the handle 13, and removes the clamp 2.

[0044] In the application, the description of the orientation or relative position relationship of the structure, such as the orientation or relative position relationship indicated by "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., is the orientation or position relationship shown based on the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the indicated structure must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the application.

Claims

1. A small diameter single section inner submerged arc welding auxiliary device, characterized by: The invention comprises a support member (1) and a clamp (2), wherein a connecting ring (3) is provided on the clamp (2), an end of the support member (1) is detachably connected to the connecting ring (3), a sliding member (4) is provided on the support member (1), and a hook (5) is provided at the bottom of the sliding member (4).

2. The small-diameter single-section inner-mouth submerged arc welding auxiliary device according to claim 1 is characterized in that: The support member (1) comprises a first tensioning belt (6), a ratchet tensioner (7) and a second tensioning belt (8); the first ends of the first tensioning belt (6) and the second tensioning belt (8) are both provided with a first hook (9); the second end of the first tensioning belt (6) is connected to the fixed end of the ratchet tensioner (7); the second end of the second tensioning belt (8) is detachably connected to the ratchet movable end of the ratchet tensioner (7); and the sliding member (4) is a pulley.

3. The small-diameter single-section inner-mouth submerged arc welding auxiliary device according to claim 1 is characterized in that: The support member (1) comprises two groups of first sleeves and a plurality of groups of hanging rail assemblies, wherein the plurality of groups of hanging rail assemblies are detachably connected end to end, the hanging rail assemblies at both ends are sleeved with first sleeves, the first sleeves are provided with second hooks, and the sliding member (4) is a hanging rail roller, which is slidably arranged in the hanging rail assembly.

4. The small-diameter single-section inner-mouth submerged arc welding auxiliary device according to claim 1 is characterized in that: The support member (1) comprises a plurality of crossbar assemblies, which are detachably connected end to end via threads, a second sleeve is sleeved on the crossbar assemblies at both ends, a third hook is sleeved on the second sleeve, and the sliding member (4) is a sliding sleeve which is sleeved on the crossbar assemblies.

5. The small-diameter single-section inner-mouth submerged arc welding auxiliary device according to any one of claims 1 to 4, characterized in that: The bottom of the sliding member (4) is rotatably provided with a universal ring (10), and the hook (5) is arranged on the universal ring (10).

6. The small-diameter single-section inner-mouth submerged arc welding auxiliary device according to claim 5 is characterized in that: The clamp (2) comprises a U-shaped clamp body (11), a screw rod (12), a handle (13) and a pad (14). The first set of side plates of the U-shaped clamp body (11) is provided with threaded holes, the screw rod (12) is arranged in the threaded holes, the handle (13) and the pad (14) are respectively arranged at both ends of the screw rod (12), the pad (14) is arranged between the two sets of side plates of the U-shaped clamp body (11), and the connecting ring (3) is arranged on the second set of side plates of the U-shaped clamp body (11).

7. A method for using a small-diameter single-section internal submerged arc welding auxiliary device, for using the small-diameter single-section internal submerged arc welding auxiliary device according to claim 6, characterized in that: The following steps are involved: S1, fix two sets of clamps (2) at the two ends of the single section respectively; S2, installing the sliding member (4) onto the supporting member (1); S3, placing the support member (1) into the single section, and connecting the two sets of end heads of the support member (1) to the two sets of connecting rings (3) respectively; S4, hanging the submerged arc welding wire and the control wire on the hook (5) and welding; S5. After welding is completed, remove the submerged arc welding handle wire and control wire, and dismantle the support (1) and the clamp (2).

8. The method for using the small-diameter single-section inner-mouth submerged arc welding auxiliary device according to claim 7 is characterized by: In step S1, the clamp (2) is set between a quarter height and a half height of a single section.