Stainless steel branch pipe welding anti-deformation tool

Abstract

The utility model discloses a stainless steel branch pipe welding anti-deformation tool which comprises two clamping hoop assemblies and a fastening assembly, the two clamping hoop assemblies are arranged at the two ends of the fastening assembly in the length direction, and the two ends of each clamping hoop assembly are oppositely and fixedly connected with the two side faces of the fastening assembly in the length direction. And the stainless steel branch pipe is arranged between the hoop assembly and the hoop assembly. According to the anti-deformation tool for welding the stainless steel branch pipe, the welding quality is improved, and meanwhile, the working efficiency is also improved. The tool is convenient to disassemble and assemble in the using process, and the assembling time is saved. The chains can be used for fixing pipes of different specifications within the range of 34-140 mm. The tool can be conveniently disassembled and assembled without a wrench, and the time cost and the labor cost for installation can be saved.

Description

Technical Field

[0001] This utility model belongs to the field of shipbuilding technology, and specifically relates to a welding fixture for stainless steel branch pipes to prevent deformation. Background Technology

[0002] Stainless steel is widely used in various fields such as petroleum, chemical, and shipbuilding. However, due to its material and structural characteristics, stainless steel has a high heat input, making it prone to deformation during welding. This problem is particularly prominent in the welding of branch pipes for prefabricated shipbuilding pipes, with numerous branch pipes exhibiting welding deformation, leading to difficulties in subsequent shipboard assembly and increasing unnecessary rework and waste. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a welding fixture for stainless steel branch pipes to prevent deformation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A welding anti-deformation fixture for stainless steel branch pipes includes two clamp assemblies and a fastening assembly. The two clamp assemblies are located at both ends of the fastening assembly along its length. The two ends of the clamp assemblies are fixedly connected to the two sides of the fastening assembly along its length. In use, the stainless steel branch pipe is placed between the clamp assemblies.

[0006] Furthermore, the fastening assembly includes a strip-shaped clamping body, with two nuts symmetrically arranged at both ends of the upper surface of the strip-shaped clamping body, and a fastening screw screw screwed onto each of the two nuts, the fastening screw screw screw being perpendicular to the upper surface of the strip-shaped clamping body; the two ends of the clamping assembly are fixedly connected to the opposite sides of the nuts.

[0007] Furthermore, the upper part of the strip-shaped clamping body is a cuboid with a hollow structure in the length direction, the nut is located above the upper end face of the cuboid, and the lower end of the fastening screw passes through the upper end face of the cuboid and extends into its hollow structure.

[0008] Furthermore, at both ends of the upper surface of the cuboid portion, there are strip-shaped notches extending from the ends to the middle. The lower end of the fastening screw extends into the hollow structure of the cuboid portion through the strip-shaped notches, and the nut and the fastening screw are movably arranged along the strip-shaped notches.

[0009] Furthermore, the fastening screw consists of a threaded section, a grooved section, and a hemispherical section from top to bottom. The hemispherical section is located within the hollow structure of the cuboid section, and the top sidewalls of the cuboid section located on both sides of the strip-shaped notch are embedded in the grooved section.

[0010] Furthermore, the strip-shaped clamping body also includes an I-shaped portion located directly below the cuboid portion; both ends of the strip-shaped clamping body in the length direction are closed ends.

[0011] Furthermore, the clamp assembly includes a chain and two L-shaped guide plates that are mirror-symmetrically arranged on both sides of the fastening assembly along its length. The inner corners of the L-shaped guide plates face the fastening assembly. The horizontal plate of the L-shaped guide plate is placed on the upper surface of the I-beam base plate and is slidably disposed with the I-beam. The upper part of the inner side of the vertical plate of the L-shaped guide plate is fixedly connected to the nut. One end of the chain is directly or indirectly fixedly connected to the outer side of the vertical plate of one of the L-shaped guide plates, and the other end of the chain is directly or indirectly detachably connected to the outer side of the vertical plate of the other L-shaped guide plate.

[0012] Furthermore, two V-shaped plates are mirror-symmetrically arranged on the outer side surfaces of the vertical plates of the two L-shaped guide plates, with the two side plates of the V-shaped plates arranged vertically and vertically, and the inner corners of the V-shaped plates facing the L-shaped guide plates. The two ends of the chain are respectively connected to the two V-shaped plates.

[0013] Furthermore, two ear plates are symmetrically arranged on the left and right sides of the outer side of the upper side plate of one of the L-shaped guide plates, and four fixing claws are arranged between the two ear plates. The four fixing claws are fixed to the outer side of the upper side plate in a square matrix, and the fixing claws pass through the chain hole of the detachable end of the chain.

[0014] Furthermore, through holes are provided on the side of the two ear plates away from the V-shaped plate, and a locking pin passes through the through hole and is detachably connected to the ear plate by nuts at both ends. The locking pin is located between the upper and lower sets of fixing claws.

[0015] This utility model presents a stainless steel branch pipe welding anti-deformation fixture, which improves welding quality and work efficiency. The fixture is easy to assemble and disassemble, saving assembly time. The chain can secure pipes of different specifications ranging from 34 mm to 140 mm. The fixture can be easily assembled and disassembled without a wrench, saving installation time and labor costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of the stainless steel branch pipe welding anti-deformation tooling described in this utility model.

[0017] Figure 2 This is a front view of the stainless steel branch pipe welding anti-deformation fixture described in this utility model.

[0018] Figure 3 yes Figure 2 View from the AA direction.

[0019] Among them, 1-strip clamping body, 2-nut, 3-fastening screw, 4-chain, 5-L-shaped guide plate, 6-V-shaped plate, 7-ear plate, 8-fixing claw, 9-locking pin, 101-cubic section, 102-I-shaped section, 1011-strip notch. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figures 1-3 As shown, a stainless steel branch pipe welding anti-deformation tooling includes two clamp assemblies and a fastening assembly. The two clamp assemblies are located at both ends of the fastening assembly along its length. The two ends of the clamp assemblies are fixedly connected to the two sides of the fastening assembly along its length. In use, the stainless steel branch pipe is placed between the clamp assemblies and the clamp assemblies.

[0022] Specifically, the fastening assembly includes a strip-shaped clamping body 1, with two nuts 2 symmetrically arranged at both ends of the upper surface of the strip-shaped clamping body 1, and a fastening screw 3 screwed onto each of the two nuts 2, the fastening screw 3 being perpendicular to the upper surface of the strip-shaped clamping body 1; the two ends of the clamping assembly are fixedly connected to the opposite sides of the nuts 2.

[0023] More specifically, in order to ensure the stability of the fastening screw abutting against the strip clamp 1, the upper part of the strip clamp 1 is a cuboid part 101 with a hollow structure in the length direction. The nut 2 is located above the upper end face of the cuboid part 101. The fastening screw 3 consists of a threaded section 301, a grooved section 302 and a hemispherical section 303 from top to bottom. The hemispherical section 303 is located inside the hollow structure of the cuboid part 101. The top sidewalls of the cuboid part 101 located on both sides of the strip notch are embedded in the grooved section 302.

[0024] In actual production, sometimes the position of the stainless steel branch pipe overlaps with the position of the clamp assembly, causing the clamp assembly to be unable to be fixed. To solve this technical problem, in some embodiments, strip-shaped notches 1011 extending from the ends to the middle are provided at both ends of the upper end face of the cuboid portion 101. The lower end of the fastening screw 3 extends into the hollow structure of the cuboid portion 101 through the strip-shaped notch 1011. The nut 2 moves along the strip-shaped notch 1011 with the fastening screw 3 and the first-level clamp assembly.

[0025] To ensure the directional stability of the clamp assembly during movement, the strip clamping body 1 further includes an I-beam portion 102 located directly below the cuboid portion 101; the clamp assembly includes a chain 4 and two L-shaped guide plates 5 mirror-symmetrically positioned on both sides of the fastening assembly along its length, with the inner corners of the L-shaped guide plates 5 facing the fastening assembly, the horizontal plate of the L-shaped guide plate 5 placed on the upper surface of the bottom plate of the I-beam portion 102 and slidably disposed with the I-beam portion 102, and the upper part of the inner side of the vertical plate of the L-shaped guide plate 5 fixedly connected to the nut 2; one end of the chain 4 is directly or indirectly fixedly connected to the outer side of the vertical plate of one of the L-shaped guide plates 5, and the other end of the chain 4 is directly or indirectly detachably connected to the outer side of the vertical plate of the other L-shaped guide plate 5.

[0026] Furthermore, two V-shaped plates 6 are mirror-symmetrically arranged on the outer side of the vertical plates of the two L-shaped guide plates 5, with the two side plates of the V-shaped plates 6 arranged vertically and vertically, and the inner corner of the V-shaped plates 6 facing the L-shaped guide plates 5. The two ends of the chain 4 are respectively connected to the two V-shaped plates 6.

[0027] It is understandable that the outward bend of the V-shaped plate 6 can provide some support for the chain 4, further ensuring the stability of the fixation.

[0028] Furthermore, two ear plates 7 are symmetrically arranged on the left and right sides of the outer side of the upper side plate of one of the L-shaped guide plates, and four fixing claws 8 are arranged between the two ear plates 7. The four fixing claws 8 are fixed to the outer side of the upper side plate in a square matrix, and the fixing claws 8 pass through the chain 4 hole of the detachable end of the chain 4.

[0029] To ensure that the chain 4 does not fall off the different fixing claws 8 during the welding process, through holes are provided on the side of the two ear plates 7 away from the V-shaped plate 6. A locking pin 9 passes through the through hole and is detachably connected to the ear plate 7 by nuts 2 at both ends. The locking pin 9 is located between the upper and lower sets of fixing claws 8.

[0030] To ensure that the two clamp assemblies, nut 2 and fastening screw 3 do not fall off the strip clamp 1, both ends of the strip clamp 1 in the length direction are closed ends.

[0031] Those skilled in the art should understand that the above description is merely a specific embodiment of the present utility model and is not intended to limit the present utility model. 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 fixture for stainless steel branch pipes to prevent deformation, characterized in that, It includes two clamp assemblies and a fastening assembly. The two clamp assemblies are located at both ends of the fastening assembly along its length. The two ends of the clamp assemblies are fixedly connected to the two sides of the fastening assembly along its length. In use, the stainless steel branch pipe is placed between the clamp assemblies and the clamp assemblies.

2. The anti-deformation tooling for welding stainless steel branch pipes according to claim 1, characterized in that, The fastening assembly includes a strip-shaped clamping body, with two nuts symmetrically arranged at both ends of the upper surface of the strip-shaped clamping body. A fastening screw is screwed onto each of the two nuts, and the fastening screw is perpendicular to the upper surface of the strip-shaped clamping body. The two ends of the clamping assembly are fixedly connected to the opposite sides of the nuts.

3. The anti-deformation tooling for welding stainless steel branch pipes according to claim 2, characterized in that, The upper part of the strip clamp is a cuboid with a hollow structure in the length direction. The nut is located above the upper end face of the cuboid. The lower end of the fastening screw passes through the upper end face of the cuboid and extends into the hollow structure.

4. The anti-deformation tooling for welding stainless steel branch pipes according to claim 3, characterized in that, The upper surface of the cuboid portion has strip-shaped notches extending from its ends toward the middle at both ends. The lower end of the fastening screw extends into the hollow structure of the cuboid portion through the strip-shaped notches. The nut and the fastening screw are movably arranged along the strip-shaped notches.

5. The anti-deformation tooling for welding stainless steel branch pipes according to claim 4, characterized in that, The fastening screw consists of a threaded section, a grooved section, and a hemispherical section from top to bottom. The hemispherical section is located inside the hollow structure of the cuboid section, and the top sidewalls of the cuboid section located on both sides of the strip-shaped notch are embedded in the grooved section.

6. The anti-deformation tooling for welding stainless steel branch pipes according to claim 4, characterized in that, The strip clamping body also includes an I-shaped portion located directly below the cuboid portion; both ends of the strip clamping body along its length are closed ends.

7. The anti-deformation tooling for welding stainless steel branch pipes according to claim 6, characterized in that, The clamp assembly includes a chain and two L-shaped guide plates that are mirror-symmetrically arranged on both sides of the fastening assembly along its length. The inner corners of the L-shaped guide plates face the fastening assembly. The horizontal plate of the L-shaped guide plate is placed on the upper surface of the I-beam base plate and is slidably disposed with the I-beam. The upper part of the inner side of the vertical plate of the L-shaped guide plate is fixedly connected to the nut. One end of the chain is directly or indirectly fixedly connected to the outer side of the vertical plate of one of the L-shaped guide plates, and the other end of the chain is directly or indirectly detachably connected to the outer side of the vertical plate of the other L-shaped guide plate.

8. The anti-deformation tooling for welding stainless steel branch pipes according to claim 7, characterized in that, Two V-shaped plates are mirror-symmetrically arranged on the outer side of the vertical plates of the two L-shaped guide plates, with the two side plates of the V-shaped plates arranged vertically and vertically, and the inner corners of the V-shaped plates facing the L-shaped guide plates. The two ends of the chain are respectively connected to the two V-shaped plates.

9. The anti-deformation tooling for welding stainless steel branch pipes according to claim 8, characterized in that, Two ear plates are symmetrically arranged on the left and right sides of the outer side of the upper side plate of one of the L-shaped guide plates. Four fixing claws are arranged between the two ear plates. The four fixing claws are fixed to the outer side of the upper side plate in a square matrix. The fixing claws pass through the chain hole of the detachable end of the chain.

10. The anti-deformation tooling for welding stainless steel branch pipes according to claim 9, characterized in that, Two ear plates are provided with through holes on the side away from the V-shaped plate. A locking pin passes through the through hole and its two ends are detachably connected to the ear plate by nuts. The locking pin is located between the upper and lower sets of fixing claws.

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