Interface alignment method for pincer type welding of duplex stainless steel pipe
By designing a clamp welding device suitable for duplex stainless steel pipes, the precise alignment and efficient clamping of multi-special stainless steel pipes are achieved, which solves the problems of inconsistency in interface alignment and single device applicability in traditional methods, improves construction efficiency and reduces labor costs.
Patent Information
- Application Number
- CN202510425123.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-07-01
AI Technical Summary
The traditional stainless steel pipe interface alignment method relies on manual operation, resulting in inconsistency and low accuracy of interface alignment, and the existing devices are single inapplicable, frequent replacement of devices affects construction progress and increases labor costs.
A duplex stainless steel pipe clamp welding device including a mounting box, transmission assembly, lift assembly, adjustment assembly and reinforcement assembly is designed. The position of the mounting plate is adjusted by the motor-driven transmission assembly, and the lift assembly and adjustment assembly achieve accurate alignment and clamping of the stainless steel pipe, ensuring that the device is suitable for stainless steel pipes of various specifications.
It improves the accuracy and consistency of interface alignment, reduces the frequency of equipment replacement, improves construction efficiency and reduces labor costs.
Smart Images
Figure CN120228459A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of stainless steel pipe welding, and particularly relates to an interface alignment method for clamp welding of duplex stainless steel pipes. Background Art
[0002] Due to its excellent strength and corrosion resistance, duplex stainless steel pipes are widely used in key industries such as petrochemical, energy transmission, and shipbuilding. In the pipeline laying and equipment manufacturing of these industries, welding is the main means of connecting duplex stainless steel pipes. As a key step before welding, the accuracy of interface alignment directly affects the welding quality and the operation stability of the subsequent pipeline system. There are many drawbacks in the traditional interface alignment methods. In the early stage, it mainly relied on workers to measure and align by experience and simple tools. This method has extremely high requirements for workers' skills, and the operation results of different workers vary significantly, making it difficult to ensure the consistency and high precision of interface alignment. Moreover, manual operation is time-consuming, and in large-scale pipeline construction projects, it will seriously slow down the project progress and increase labor costs.
[0003] Existing devices are generally only applicable to a certain type of stainless steel pipe. Due to the specificity of the devices, operators need to frequently replace the devices, which not only wastes a lot of time but also reduces work efficiency. At the same time, if the welding device needs to be replaced and re-adjusted every time the pipe material is changed, it will seriously affect the construction progress and increase labor costs. Summary of the Invention
[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide an interface alignment method for clamp welding of duplex stainless steel pipes.
[0005] The technical solution adopted to solve the above technical problem is: An interface for clamp welding of duplex stainless steel pipes includes an installation box, a transmission component is installed on the installation box, mounting plates are fixedly connected to both of the transmission components, lifting components are installed on the tops of both of the mounting plates, and mounting parts are fixedly connected to both of the lifting components;
[0006] Adjusting components are installed on the outer walls of both of the mounting parts, reinforcing components are installed on the tops of both of the mounting plates, two hydraulic rods are installed on the top of the installation box, and a support plate is fixedly connected between the tops of the two hydraulic rods.
[0007] Furthermore, the lifting assembly includes a first sliding groove formed at the top of the mounting plate. Two first sliders are slidably connected to the inner wall of the first sliding groove. First connecting grooves are formed at the tops of the two first sliders. First connecting rods are fixedly connected to the inner walls of the two first connecting grooves. Lifting rods are rotatably connected to the outer walls of the two first connecting rods. A lifting block is fixedly connected to the bottom of the outer wall of the mounting member. Two second connecting grooves are formed at the bottom of the lifting block. Second connecting rods are fixedly connected to the inner walls of the two second connecting grooves. A mounting hole is formed at the bottom of one of the first sliders. A lead screw is threadedly connected to the inner wall thereof. A rotating handle is installed on one side of the lead screw.
[0008] Through the above technical solution, first rotate the rotating handle, which drives one of the first sliders to slide along the first sliding groove. The two first sliders drive the corresponding lifting rods to move upward, and the two lifting rods drive the lifting block to move upward synchronously, so that the mounting member is lifted.
[0009] Furthermore, the other ends of the two lifting rods are rotatably connected to the outer walls of the corresponding second connecting rods, and the outer walls of the two second connecting rods are closely attached to the corresponding lifting rods.
[0010] Through the above technical solution, during the lifting process, the lifting rods need to continuously change the angle. The close fit can make the rotation more stable and reduce the occurrence of jamming. At the same time, it can also improve the work efficiency and reduce the probability of equipment failure.
[0011] Furthermore, the adjusting assembly includes a plurality of mounting tubes fixedly connected to the outer wall of the mounting member. Springs are installed inside the plurality of mounting tubes. Adjusting rods are fixedly connected to one side of the plurality of springs. Clamping plates are fixedly connected between one sides of every two adjusting rods.
[0012] Through the above technical solution, push the clamping plate towards the inner wall of the mounting member. The clamping plate drives the adjusting rods to move synchronously along the inner walls of the mounting tubes. Then, pass the stainless steel pipe to be installed through the mounting member. Finally, reset the clamping plate by the elastic force of the spring, so that the clamping plate clamps the corresponding stainless steel pipe.
[0013] Furthermore, limiting rings are fixedly connected to the other ends of the plurality of adjusting rods, and the inner walls of the plurality of mounting tubes are closely attached to the outer walls of the limiting rings.
[0014] Through the above technical solution, it can ensure that the adjusting rods move in a straight line inside the mounting tubes. At the same time, it can also limit the radial displacement of the adjusting rods, so that they can only move in the axial direction, thereby improving the accuracy of the adjustment process and ensuring that the position and force of each clamping are relatively stable.
[0015] Further, the reinforcement component includes two reinforcement rods fixedly connected to the top of the mounting plate. Second chutes are provided on both of the two reinforcement rods. Second sliders are slidably connected inside both of the second chutes. Fixed rods are slidably connected to both of the two reinforcement rods. Nuts are threadedly connected to the front, rear, both ends of the outer walls of both of the fixed rods.
[0016] Through the above technical solution, when the lifting component adjusts the mounting member to a suitable position, then slide the fixed rod along the reinforcement rod to the bottom of the second slider, and finally fix it with nuts.
[0017] Further, one side of the outer walls of both of the second sliders matches the inner walls of the corresponding second chutes, and both of the second sliders are parallel to each other.
[0018] Through the above technical solution, when the mounting member is lifted or subjected to an external load, the second slider, through the cooperation with the second chute, evenly transmits the force to the reinforcement rod, avoiding structural damage caused by excessive local stress and improving the reliability of the entire device.
[0019] Further, the transmission component includes a motor installed on one side of the outer wall of the installation box. A bidirectional threaded rod is fixedly connected to the output end of the motor. Two linkage blocks are threadedly connected to the outer wall of the bidirectional threaded rod.
[0020] Through the above technical solution, first start the motor, so that the motor drives the bidirectional threaded rod to rotate. At the same time, through the rotation of the bidirectional threaded rod, two linkage blocks are driven to move relatively. Then the two linkage blocks drive the mounting plate to move synchronously until the two mounting plates are adjusted to the specified positions.
[0021] A method for aligning interfaces for welding of duplex stainless steel pipe wrenches includes the following specific steps:
[0022] Step 1: First start the motor, so that the motor drives the bidirectional threaded rod to rotate. At the same time, through the rotation of the bidirectional threaded rod, two linkage blocks are driven to move relatively. Then the two linkage blocks drive the mounting plate to move synchronously until the two mounting plates are adjusted to the specified positions;
[0023] Step 2: First rotate the rotary handle, thereby driving one of the first sliders to slide along the first chute. The two first sliders drive the corresponding lifting rods to move upward. The two lifting rods drive the lifting block to move upward synchronously, so as to lift the mounting member;
[0024] Step 3: When the lifting component adjusts the mounting member to a suitable position, then slide the fixed rod along the reinforcement rod to the bottom of the second slider, and finally fix it with nuts;
[0025] Step 4: Then, push the clamping plate towards the inner wall of the mounting part. The clamping plate drives the adjusting rod to move synchronously along the inner wall of the mounting tube. Subsequently, pass the stainless steel pipe to be installed through the mounting part. Finally, reset the clamping plate through the elastic force of the spring, so that the clamping plate clamps the corresponding stainless steel pipe. Finally, start the two hydraulic rods to drive the support plate to move upward until the top of the support plate fits the outer wall of the stainless steel pipe.
[0026] The beneficial effects of the present invention are as follows: (1) By setting the adjustment component, the present invention can be adjusted accordingly according to the size, shape and other characteristics of different styles of stainless steel pipes, so that the same set of interface alignment devices can be applicable to various specifications of duplex stainless steel pipes, greatly improving the application range of the device; (2) By setting the transmission component, the present invention can complete the position adjustment of the mounting plate in a short time. In the scenario where it is necessary to frequently replace stainless steel pipes of different specifications for welding, this rapid response ability can reduce the downtime of the equipment and improve the overall work efficiency. Description of the Drawings
[0027] Figure 1 is the external view of the present invention;
[0028] Figure 2 is the transverse cross-sectional view of the present invention;
[0029] Figure 3 is the structural schematic diagram of the lifting component, adjustment component and reinforcement component of the present invention;
[0030] Figure 4 is the right view of the lifting component, adjustment component and reinforcement component of the present invention;
[0031] Figure 5 is Figure 4 the cross-sectional view taken along the line A-A in
[0032] Figure 6 is the front view of the lifting component, adjustment component and reinforcement component of the present invention;
[0033] Figure 7 is Figure 6 the cross-sectional view taken along the line B-B in
[0034] Figure 8 is Figure 3 the partial enlarged view at A in
[0035] Figure 9 is Figure 5 the partial enlarged view at B in
[0036] Figure 10 is Figure 7 the partial enlarged view at C in
[0037] Reference numerals: 1, mounting box; 2, mounting plate; 3, lifting assembly; 301, first chute; 302, first slider; 303, first connection groove; 304, first connecting rod; 305, lifting rod; 306, lifting block; 307, second connection groove; 308, second connecting rod; 309, mounting hole; 3010, lead screw; 3011, rotating handle; 4, mounting member; 5, adjusting assembly; 501, mounting tube; 502, spring; 503, adjusting rod; 504, clamping plate; 6, reinforcement assembly; 601, reinforcement rod; 602, second slider; 603, fixing rod; 604, nut; 605, second chute; 7, transmission assembly; 701, motor; 702, bidirectional lead screw; 703, linkage block; 8, hydraulic rod; 9, support plate. Detailed implementation manners
[0038] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0039] Such as Figure 1 - Figure 10As shown in the figure, an interface for double-phase stainless steel pipe clamp welding in this embodiment includes an installation box 1. A transmission component 7 is installed on the installation box 1. Installation plates 2 are fixedly connected to both transmission components 7. Lifting components 3 are installed on the tops of both installation plates 2. The lifting component 3 includes a first sliding groove 301 opened on the top of the installation plate 2. Two first sliding blocks 302 are slidably connected to the inner wall of the first sliding groove 301. First connection grooves 303 are opened on the tops of both first sliding blocks 302. First connecting rods 304 are fixedly connected to the inner walls of both first connection grooves 303. Lifting rods 305 are rotatably connected to the outer walls of both first connecting rods 304. A lifting block 306 is fixedly connected to the bottom of the outer wall of the installation part 4. Two second connection grooves 307 are opened at the bottom of the lifting block 306. Second connecting rods 308 are fixedly connected to the inner walls of both second connection grooves 307. An installation hole 309 is opened at the bottom of one of the first sliding blocks 302. A lead screw 3010 is threadedly connected to the inner wall. A rotating handle 3011 is installed on one side of the lead screw 3010. First, rotate the rotating handle 3011, which drives one of the first sliding blocks 302 to slide along the first sliding groove 301. The two first sliding blocks 302 drive the corresponding lifting rods 305 to move upward. The two lifting rods 305 drive the lifting block 306 to move upward synchronously, so that the installation part 4 is lifted. The other ends of the two lifting rods 305 are rotatably connected to the outer walls of the corresponding second connecting rods 308. The outer walls of both second connecting rods 308 are in close contact with the corresponding lifting rods 305. During the lifting process, the lifting rods 305 need to continuously change the angle. The close contact can make the rotation more stable and reduce the occurrence of jamming phenomena. At the same time, it can also improve work efficiency and reduce the probability of equipment failure.
[0040] As Figure 3 , Figure 6 , Figure 7 and Figure 9As shown in the figure, mounting members 4 are fixedly connected to both of the two lifting components 3, and adjusting components 5 are mounted on the outer walls of the two mounting members 4. The adjusting component 5 includes a plurality of mounting tubes 501 fixedly connected to the outer wall of the mounting member 4. Springs 502 are mounted inside the plurality of mounting tubes 501. One side of each of the plurality of springs 502 is fixedly connected to an adjusting rod 503. A clamping plate 504 is fixedly connected between one sides of every two adjusting rods 503; then the clamping plate 504 is pushed towards the inner wall of the mounting member 4. The clamping plate 504 drives the adjusting rod 503 to move synchronously along the inner wall of the mounting tube 501. Subsequently, the stainless steel pipe to be installed is passed through the mounting member 4. Finally, the clamping plate 504 is reset by the elastic force of the spring 502, so that the clamping plate 504 clamps the corresponding stainless steel pipe. The other ends of the plurality of adjusting rods 503 are fixedly connected with limit rings, and the inner walls of the plurality of mounting tubes 501 are closely attached to the outer walls of the limit rings; it can ensure that the adjusting rod 503 makes a linear motion in the mounting tube 501. At the same time, the radial displacement of the adjusting rod 503 can also be restricted, so that it can only move in the axial direction, thereby improving the accuracy of the adjustment process and ensuring that the position and force of each clamping are relatively stable.
[0041] As Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown in the figure, reinforcing components 6 are mounted on the tops of both of the two mounting plates 2. The reinforcing component 6 includes two reinforcing rods 601 fixedly connected to the top of the mounting plate 2. Second chutes 605 are provided on both of the two reinforcing rods 601. Second sliders 602 are slidably connected inside the two second chutes 605. Fixing rods 603 are slidably connected to both of the two reinforcing rods 601. Nuts 604 are threadedly connected to the front and rear ends of the outer walls of the two fixing rods 603; when the lifting component 3 adjusts the mounting member 4 to a suitable position, the fixing rod 603 is slid along the reinforcing rod 601 to the bottom of the second slider 602, and finally fixed by the nut 604. One sides of the outer walls of the two second sliders 602 match the inner walls of the corresponding second chutes 605, and the two second sliders 602 are parallel to each other; when the mounting member 4 is lifted or subjected to an external load, the second slider 602 transfers the force evenly to the reinforcing rod 601 through the cooperation with the second chute 605, avoiding structural damage caused by excessive local stress and improving the reliability of the entire device.
[0042] As Figure 1 and Figure 2As shown in the figure, two hydraulic rods 8 are installed on the top of the installation box 1, and a support plate 9 is fixedly connected between the tops of the two hydraulic rods 8. The transmission assembly 7 includes a motor 701 installed on one side of the outer wall of the installation box 1. The output end of the motor 701 is fixedly connected with a bidirectional threaded rod 702, and two linkage blocks 703 are threadedly connected to the outer wall of the bidirectional threaded rod 702. First, start the motor 701, so that the motor 701 drives the bidirectional threaded rod 702 to rotate. At the same time, the rotation of the bidirectional threaded rod 702 drives the two linkage blocks 703 to move relatively. Then, the two linkage blocks 703 drive the mounting plate 2 to move synchronously until the two mounting plates 2 are adjusted to the specified positions.
[0043] A method for aligning interfaces for double-phase stainless steel pipe clamp welding includes the following specific steps:
[0044] Step 1: First, start the motor 701, so that the motor 701 drives the bidirectional threaded rod 702 to rotate. At the same time, the rotation of the bidirectional threaded rod 702 drives the two linkage blocks 703 to move relatively. Then, the two linkage blocks 703 drive the mounting plate 2 to move synchronously until the two mounting plates 2 are adjusted to the specified positions.
[0045] Step 2: First, rotate the rotating handle 3011, which drives one of the first sliders 302 to slide along the first chute 301. The two first sliders 302 drive the corresponding lifting rods 305 to move upward, and the two lifting rods 305 drive the lifting block 306 to move upward synchronously, so that the mounting member 4 is lifted.
[0046] Step 3: When the lifting assembly 3 adjusts the mounting member 4 to the appropriate position, slide the fixing rod 603 along the reinforcing rod 601 to the bottom of the second slider 602, and finally fix it with a nut 604.
[0047] Step 4: Then, push the clamping plate 504 towards the inner wall of the mounting member 4. The clamping plate 504 drives the adjusting rod 503 to move synchronously along the inner wall of the mounting pipe 501. Then, pass the stainless steel pipe to be installed through the mounting member 4. Finally, reset the clamping plate 504 by the elastic force of the spring 502, so that the clamping plate 504 clamps the corresponding stainless steel pipe. Finally, start the two hydraulic rods 8, so that the two hydraulic rods 8 drive the support plate 9 to move upward until the top of the support plate 9 fits the outer wall of the stainless steel pipe.
[0048] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.
Claims
1. A duplex stainless steel pipe clamp welding interface, comprising a mounting box (1), characterized in that: The installation box (1) is provided with a transmission assembly (7), the two transmission assemblies (7) are fixedly connected to a mounting plate (2), the tops of the two mounting plates (2) are provided with a lifting assembly (3), and the two lifting assemblies (3) are fixedly connected to a mounting member (4); The outer walls of the two mounting parts (4) are both installed with adjustment components (5), the tops of the two mounting plates (2) are both installed with reinforcement components (6), the top of the mounting box (1) is installed with two hydraulic rods (8), and a support plate (9) is fixedly connected between the tops of the two hydraulic rods (8).
2. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 1, characterized in that: The lifting assembly (3) comprises a first sliding groove (301) provided at the top of the mounting plate (2); two first sliding blocks (302) are slidably connected to the inner wall of the first sliding groove (301); a first connecting groove (303) is provided at the top of the two first sliding blocks (302); the inner walls of the two first connecting grooves (303) are fixedly connected to a first connecting rod (304); the outer walls of the two first connecting rods (304) are rotatably connected to a lifting rod (305); a lifting block (306) is fixedly connected to the bottom of the outer wall of the mounting member (4); two second connecting grooves (307) are provided at the bottom of the lifting block (306); the inner walls of the two second connecting grooves (307) are fixedly connected to a second connecting rod (308); a mounting hole (309) is provided at the bottom of one of the first sliding blocks (302); a screw rod (3010) is threadedly connected to the inner wall; a rotating handle (3011) is installed on one side of the screw rod (3010).
3. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 2, characterized in that: The other ends of the two lifting rods (305) are rotatably connected to the outer walls of the corresponding second connecting rods (308), and the outer walls of the two second connecting rods (308) are tightly fitted with the corresponding lifting rods (305).
4. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 1, characterized in that: The adjustment assembly (5) comprises a plurality of mounting tubes (501) fixedly connected to the outer wall of the mounting member (4), a spring (502) being installed inside each of the plurality of mounting tubes (501), an adjustment rod (503) being fixedly connected to one side of each of the plurality of springs (502), and a clamping plate (504) being fixedly connected between one side of each two of the adjustment rods (503).
5. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 4, characterized in that: The other ends of the plurality of adjustment rods (503) are fixedly connected to a limiting ring, and the inner walls of the plurality of installation tubes (501) are tightly fitted to the outer wall of the limiting ring.
6. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 1, characterized in that: The reinforcement assembly (6) comprises two reinforcement rods (601) fixedly connected to the top of the mounting plate (2), the two reinforcement rods (601) are each provided with a second slide groove (605), the two second slide grooves (605) are each slidably connected with a second slider (602), the two reinforcement rods (601) are each slidably connected with a fixing rod (603), and nuts (604) are threadedly connected at both front and rear ends of the outer walls of the two fixing rods (603).
7. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 6, characterized in that: One side of the outer wall of the two second sliding blocks (602) matches the inner wall of the corresponding second sliding groove (605), and the two second sliding blocks (602) are parallel to each other.
8. The method for aligning the interface for duplex stainless steel pipe clamp welding according to claim 1, characterized in that: The transmission assembly (7) comprises a motor (701) installed on one side of the outer wall of the installation box (1); a bidirectional threaded rod (702) is fixedly connected to the output end of the motor (701); and two linkage blocks (703) are threadedly connected to the outer wall of the bidirectional threaded rod (702).
9. A method for aligning the interface for duplex stainless steel pipe clamp welding according to any one of claims 1 to 8, characterized in that: The specific steps include: Step 1: First, the motor (701) is started, so that the motor (701) drives the bidirectional threaded rod (702) to rotate. At the same time, the rotation of the bidirectional threaded rod (702) drives the two linkage blocks (703) to move relative to each other, and then the two linkage blocks (703) drive the mounting plates (2) to move synchronously until the two mounting plates (2) are adjusted to the specified position; Step 2: First, the rotating handle (3011) is rotated, thereby driving one of the first sliders (302) to slide along the first slide groove (301), and the two first sliders (302) drive the corresponding lifting rods (305) to move upward, and the two lifting rods (305) drive the lifting block (306) to move upward synchronously, so that the installation component (4) is lifted or lowered; Step 3: When the lifting assembly (3) adjusts the mounting member (4) to a suitable position, the fixing rod (603) is slid along the reinforcing rod (601) to the bottom of the second sliding block (602), and finally fixed by the nut (604); Step 4: Push the clamping plate (504) toward the inner wall of the mounting member (4), and the clamping plate (504) drives the adjusting rod (503) to move synchronously along the inner wall of the mounting tube (501). Then, the stainless steel tube to be installed is passed through the mounting member (4). Finally, the clamping plate (504) is reset by the elastic force of the spring (502), so that the clamping plate (504) clamps the corresponding stainless steel tube. Finally, the two hydraulic rods (8) are started, so that the two hydraulic rods (8) drive the support plate (9) to move upward until the top of the support plate (9) fits with the outer wall of the stainless steel tube.