A continuous welding device applied to a sleeve

Abstract

This invention belongs to the field of sleeve welding technology and discloses a continuous welding device for sleeves, including a welding frame assembly. The welding frame assembly has a water inlet assembly on its front side. The welding frame assembly includes a base, a connecting frame fixedly mounted on the top of the base, adjusting guide rails mounted on both sides of the connecting frame, a top frame mounted on the top of the connecting frame, and a main cylinder fixedly mounted in the middle of the inner top wall of the top frame. By utilizing the cooperation of the water inlet assembly, the auxiliary rotating roller, and the welding frame assembly, the device can quickly and automatically drive the auxiliary rotating roller to rotate after the sleeve is quickly positioned and fixed. This allows the fixed sleeve to actively rotate, and in conjunction with the welding at the top, rapid circumferential welding between two sleeves can be achieved. The entire welding process can be completed quickly without manually rotating the sleeve during welding, reducing safety risks and improving overall welding efficiency.

Description

Technical Field

[0001] This invention belongs to the field of sleeve welding technology, specifically a continuous welding device for sleeves. Background Technology

[0002] Casing is a pipeline component commonly used in oil, natural gas, and construction industries. It primarily protects wellbores or other pipelines from damage caused by external pressure, corrosion, and abrasion. It is typically made of steel, stainless steel, or other corrosion-resistant materials, possessing high strength and pressure resistance. During oil and gas extraction, casing reinforces the wellbore to prevent collapse and also prevents groundwater or other gases from contaminating surface or groundwater bodies.

[0003] During the production and processing of sleeves, the sleeve length is relatively limited for the convenience of production and transportation. However, in actual use, the sleeve length is often insufficient. Therefore, welding equipment is used to weld multiple sleeves. However, the welding equipment in the existing technology has limited adaptability and can only weld two sleeves. After welding, the sleeve needs to be removed and re-fixed before welding another sleeve. The overall welding process is cumbersome and cannot achieve continuous welding.

[0004] Meanwhile, the sleeve needs to be circumferentially welded during welding. However, the current welding method requires manual rotation of the sleeve to perform circumferential welding because the sleeve is in a limited position during welding. This results in high welding temperatures and poses certain safety risks. Summary of the Invention

[0005] The purpose of this invention is to provide a continuous welding apparatus for sleeves to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a continuous welding device for sleeves, comprising a welding frame assembly, a water inlet assembly on the front of the welding frame assembly, a base, a connecting frame fixedly mounted on the top of the base, adjusting guide rails mounted on both the left and right sides of the connecting frame, a top frame mounted on the top of the connecting frame, a main cylinder fixedly mounted in the middle of the inner top wall of the top frame, a welding machine mounted on the output end of the main cylinder, locking frames mounted on both the front and rear sides of the bottom of the connecting frame, an auxiliary rotating roller movably mounted between the two locking frames, an adjusting assembly mounted in the middle of the top of the base, guide blocks movably engaged inside the adjusting guide rails, the bottom ends of the guide blocks connected to the left and right sides of the top of the adjusting assembly, clamping rings fixedly mounted on the top of each guide block, and auxiliary pushing components mounted on the rear ends of each clamping ring. The high-pressure water flow input by the water inlet component acts on the adjustment component, and the adjustment component realizes the adjustment of the distance between the two clamping rings and completes the limiting clamping of the sleeve. At the same time, the high-pressure water acts on the auxiliary rotating roller through the water inlet component to realize the rotation of the sleeve, and acts on the auxiliary pushing component to realize the active movement of the sleeve.

[0007] When performing continuous welding of the sleeves, both sleeves can be placed above the connecting frame, while keeping the bottom end of the sleeve in contact with the top end of the auxiliary rotating roller. The two sleeves are then joined end to end, and the water inlet assembly is connected to an external water pump to complete the preparations for continuous welding of the sleeves.

[0008] As a further technical solution of the present invention, the water inlet assembly includes a power tank, which is installed on the front of the locking frame. The water inlet assembly also includes a No. 1 three-way valve, the rear end of which is fixedly connected to the regulating assembly, the top end of which is connected to the bottom end of the power tank, and the front end of which is connected to an external high-pressure water pump.

[0009] As a further technical solution of the present invention, a power shaft is movably installed in the middle of the power tank, and a main impeller located inside the power tank is fixedly sleeved on the outer side of the power shaft. A No. 2 three-way valve is fixedly connected to the top of the power tank, and water supply hoses are fixedly connected to both the left and right ends of the No. 2 three-way valve. The end of the water supply hose away from the No. 2 three-way valve is connected to the auxiliary pushing component.

[0010] After the limit is fixed, the main cylinder can be activated to control the welding machine to move down until the welding end of the welding machine contacts the connection between the two sleeves. The welding process is then carried out at the connection between the two sleeves. At the same time, the valve at the top of the No. 1 three-way valve is opened. At this time, high-pressure water enters the power tank and exits through the top of the power tank and enters the No. 2 three-way valve. When the high-pressure water enters the power tank, it can drive the main impeller to rotate. At this time, the power shaft rotates and drives the auxiliary rotating roller to rotate. The auxiliary rotating roller can then drive the two sleeves to rotate synchronously by relying on surface friction, and cooperate with the welding machine at the top to complete the circumferential welding process.

[0011] By utilizing the combination of the water inlet assembly, the auxiliary rotating roller, and the welding frame assembly, the device can quickly achieve the limiting and fixing of the sleeve, and then automatically drive the auxiliary rotating roller to rotate. The fixed sleeve is actively rotated by the auxiliary rotating roller. Combined with the welding at the top, rapid circumferential welding between the two sleeves can be achieved. The entire welding process can be completed quickly without the need to manually rotate the sleeve during welding, reducing safety risks and improving overall welding efficiency.

[0012] As a further technical solution of the present invention, the adjustment component includes a movable plate located directly below the auxiliary rotating roller. A first fixed seat is fixedly installed at each of the four corners of the top of the movable plate. The end of each first fixed seat away from the movable plate is movably connected to a connecting rod via a rotating shaft. The end of each connecting rod away from the first fixed seat is movably connected to a second fixed seat via a rotating shaft.

[0013] As a further technical solution of the present invention, the adjustment component also includes a mounting plate, the top end of which is connected to the bottom end of the guide block, and the front and rear sides of the bottom end of the mounting plate are connected to the second fixed seat.

[0014] As a further technical solution of the present invention, the adjustment component also includes a fixed tube located directly below the movable plate. The bottom end of the fixed tube is connected to the top end of the base. An air intake valve is fixedly connected to the front end of the fixed tube near the top end. The air intake valve is connected to the rear end of the No. 1 three-way valve.

[0015] As a further technical solution of the present invention, a piston plate is movably sleeved inside the fixed tube, and a piston rod is fixedly installed at the top of the piston plate. The top of the piston rod passes through the top of the fixed tube and is connected to the bottom of the movable plate. A limit spring is movably sleeved on the outer side of the piston rod, and the upper and lower ends of the limit spring are respectively connected to the top of the inner cavity of the fixed tube and the top of the piston plate.

[0016] When welding the sleeves, an external high-pressure water pump can be turned on to input high-pressure water into the No. 1 three-way valve. At this time, the valve at the rear end of the No. 1 three-way valve can be opened, and the high-pressure water can enter the interior of the fixed pipe through the No. 1 three-way valve and the air inlet valve, applying pressure to the piston plate. The piston plate then moves downward, causing the piston rod to move downward. At this time, the limit spring is stretched, and a pulling force is applied to the movable plate. The movable plate then moves downward, causing multiple first fixed seats to move downward. Multiple connecting rods then deflect inward, causing the two mounting plates to move closer together and causing the guide block to move relative to the adjusting guide rail. At this time, the two clamping rings move closer together until they contact the outer surfaces of the two sleeves, completing the limiting and fixing process of the two sleeves.

[0017] As a further technical solution of the present invention, the auxiliary pushing component includes an extended guide rail, which is connected to the rear end of the clamping ring. An adjusting block is movably engaged inside the extended guide rail. The adjusting block moves left and right relative to the extended guide rail. An electromagnetic block is installed at one end of the adjusting block. An elastic telescopic rod is installed at one end of the inner cavity of the extended guide rail. The other end of the elastic telescopic rod is connected to the adjusting block. When the elastic telescopic rod is in its initial state, the electromagnetic block is not attracted to the inner surface of the extended guide rail.

[0018] As a further technical solution of the present invention, a pusher roller is movably installed on one side of the adjusting block via a frame, and a water spray tank is installed on the top of the frame. The input end of the water spray tank is fixedly connected to the water delivery hose, and the output end of the water spray tank is located on one side of the sleeve.

[0019] As a further technical solution of the present invention, a main shaft is movably installed in the middle of the water spray tank, the bottom end of the main shaft passes through the bottom end of the water spray tank and is connected to the pusher roller, and a secondary impeller located inside the water spray tank is fixedly sleeved on the outer side of the main shaft.

[0020] After welding two sleeves, another sleeve can be connected to the rear end of the welded sleeve, and the input of high-pressure water to the rear end of the No. 1 three-way valve is stopped. At this time, the adjusting component can automatically reset and release the limiting clamp on the sleeve. At the same time, the electromagnetic block is activated, and the electromagnetic block can be attracted and connected to the side of the extension guide rail. The elastic telescopic rod is stretched and drives the pusher roller to move towards the sleeve until the outer side of the pusher roller contacts the sleeve. At this time, high-pressure water can enter the interior of the two spray tanks through the No. 2 three-way valve and the water supply hose, and drive the auxiliary impeller to rotate. At this time, the pusher roller at the bottom rotates accordingly. Through the relative rotation of the left and right pusher rollers, the sleeve is pushed until the sleeve connection at the tail end is moved to the bottom of the welding machine. This allows the auxiliary pusher component to reset, and the limiting clamping process is completed again through the two clamping rings. By repeating the above process, the continuous welding of the sleeve can be completed.

[0021] By utilizing the coordinated action of the water inlet assembly, the auxiliary pusher assembly, and the adjustment assembly, the device can quickly release the limiting and fixing of the sleeves after welding two sleeves. The auxiliary pusher assembly enables the sleeves to be pushed quickly, and the welding process of subsequent sleeves can be completed continuously. The entire welding process is completed continuously, and only the subsequent sleeves need to be matched with the front sleeves. This can significantly shorten the welding time between multiple sleeves and improve the overall welding efficiency.

[0022] Furthermore, during the entire welding process, high-pressure water can enter the interior of the spray tank through the water delivery hose. When the pusher roller rotates, the high-pressure water can be discharged from one side of the spray tank. At this time, the high-pressure water can act on the surface of the casing, and the heat on the surface of the casing can be directly carried away by the flowing high-pressure water, thus completing the process of removing welding debris.

[0023] By utilizing the cooperation between the water inlet assembly and the auxiliary pusher assembly, high-pressure water is directly discharged to achieve the cooling and debris removal process on the casing surface. At the same time, when the high-pressure water flows through the water inlet assembly and the auxiliary pusher assembly, it can provide power to the auxiliary rotating roller and the pusher roller, realize the rotation of the copper tube and the active pushing of the casing, improve the degree of welding automation, shorten the preparation time, and further improve the welding efficiency.

[0024] The beneficial effects of this invention are as follows: (1) By utilizing the combination of the water inlet assembly, the auxiliary rotating roller, and the welding frame assembly, the device can quickly achieve the limiting and fixing of the sleeve, and then automatically drive the auxiliary rotating roller to rotate. The fixed sleeve can be actively rotated by the auxiliary rotating roller. With the welding at the top, the two sleeves can be quickly circumferentially welded. The entire welding process can be completed quickly without manually rotating the sleeve during welding, which reduces safety risks and improves the overall welding efficiency.

[0025] (2) By utilizing the cooperation between the water inlet assembly, the auxiliary push assembly, and the adjustment assembly, the device can quickly release the limiting fixation of the sleeve after completing the welding of the two sleeves, and realize the rapid pushing of the sleeve through the action of the auxiliary push assembly, and continuously complete the welding process of the subsequent sleeves. The entire welding process is completed continuously, and it is only necessary to match the subsequent sleeves with the front sleeves. This can significantly shorten the welding time between multiple sleeves and improve the overall welding efficiency.

[0026] (3) This invention utilizes the cooperation between the water inlet assembly and the auxiliary pusher assembly to achieve the cooling and debris removal process of the sleeve surface by directly exporting high-pressure water. At the same time, when the high-pressure water flows through the water inlet assembly and the auxiliary pusher assembly, it can provide power for the auxiliary rotating roller and the pusher roller to achieve the rotation of the copper tube and the active pushing of the sleeve, thereby improving the degree of welding automation, shortening the preparation time, and further improving the welding efficiency. Attached Figure Description

[0027] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 This is a side view of the overall structure of the present invention; Figure 3 This is a separate schematic diagram of the intake component structure of the present invention; Figure 4 This is a partial cross-sectional schematic diagram of the air intake assembly structure of the present invention; Figure 5 This is a separate schematic diagram of the welding frame assembly structure of the present invention; Figure 6 This is an exploded view of the locking frame and auxiliary rotating roller structure of the present invention; Figure 7 This is a separate schematic diagram of the adjustment component structure of the present invention; Figure 8 This is a partial cross-sectional view of the structure of the adjustment component of the present invention; Figure 9 This is a schematic diagram showing the fit between the clamping ring and the auxiliary feeding assembly structure of the present invention; Figure 10This is an exploded view of the structure of the auxiliary feeding component of the present invention.

[0028] In the diagram: 1. Welding frame assembly; 101. Base; 102. Connecting frame; 103. Adjusting guide rail; 104. Top frame; 105. Main cylinder; 106. Welding machine; 2. Water inlet assembly; 201. Power tank; 202. No. 1 three-way valve; 203. No. 2 three-way valve; 204. Water supply hose; 205. Power shaft; 206. Main impeller; 3. Locking frame; 4. Auxiliary rotating roller; 5. Adjusting assembly; 501. Movable plate; 502. First fixed... 503. Second fixed seat; 504. Mounting plate; 505. Connecting rod; 506. Fixed tube; 507. Inlet valve; 508. Piston plate; 509. Piston rod; 5010. Limiting spring; 6. Clamping ring; 7. Guide block; 8. Auxiliary pushing assembly; 801. Extension guide rail; 802. Adjusting block; 803. Elastic telescopic rod; 804. Electromagnetic block; 805. Pushing roller; 806. Water spray tank; 807. Main shaft; 808. Secondary impeller. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1 to 10 As shown in the embodiment of the present invention, a continuous welding device for sleeves includes a welding frame assembly 1. A water inlet assembly 2 is provided on the front of the welding frame assembly 1. The welding frame assembly 1 includes a base 101. A connecting frame 102 is fixedly installed on the top of the base 101. Adjusting guide rails 103 are installed on both the left and right sides of the connecting frame 102. A top frame 104 is installed on the top of the connecting frame 102. A main cylinder 105 is fixedly installed in the middle of the inner top wall of the top frame 104. A welding machine 106 is installed at the output end of the main cylinder 105. Locking frames 3 are installed on both the front and rear sides of the bottom of the connecting frame 102. An auxiliary rotating roller 4 is movably installed between the two locking frames 3. An adjusting assembly 5 is installed in the middle of the top of the base 101. Guide blocks 7 are movably engaged inside the adjusting guide rails 103. The bottom of the guide blocks 7 is connected to the left and right sides of the top of the adjusting assembly 5. A clamping ring 6 is fixedly installed on the top of the guide blocks 7. An auxiliary pushing assembly 8 is installed at the rear end of the clamping ring 6. The high-pressure water flow input by the water inlet component 2 acts on the adjustment component 5, and the distance between the two clamping rings 6 is adjusted through the adjustment component 5, and the sleeve is limited and clamped. At the same time, the high-pressure water acts on the auxiliary rotating roller 4 through the water inlet component 2 to realize the rotation of the sleeve, and acts on the auxiliary pushing component 8 to realize the active movement of the sleeve.

[0031] During continuous welding of the sleeves, both sleeves can be placed above the connecting frame 102, while keeping the bottom end of the sleeve in contact with the top end of the auxiliary rotating roller 4. The two sleeves are then joined end-to-end, and the water inlet assembly 2 is connected to an external high-pressure water pump, completing the preparations for continuous sleeve welding. It should be noted that the sleeves targeted in this application are mainly used in construction, petroleum, and other fields, and typically have a certain weight. To ensure the feasibility of the technical solution, the selected external high-pressure water pump should be an industrial-grade high-pressure water pump, with a rated pressure preferably of 150-300 bar and a rated flow rate preferably of 900-1500 L / h, to ensure sufficient pressure and power to drive the hydraulic components in this device.

[0032] like Figure 1 and Figure 3 as well as Figure 4 As shown, the water inlet assembly 2 includes a power tank 201, which is installed on the front of the locking frame 3. The water inlet assembly 2 also includes a first three-way valve 202. The rear end of the first three-way valve 202 is fixedly connected to the regulating assembly 5. The top end of the first three-way valve 202 is connected to the bottom end of the power tank 201. The front end of the first three-way valve 202 is connected to an external high-pressure water pump. A power shaft 205 is movably installed in the middle of the power tank 201. A main impeller 206 located inside the power tank 201 is fixedly sleeved on the outer side of the power shaft 205. A second three-way valve 203 is fixedly connected to the top end of the power tank 201. Water delivery hoses 204 are fixedly connected to both ends of the second three-way valve 203. The end of the water delivery hose 204 away from the second three-way valve 203 is connected to the auxiliary pushing assembly 8.

[0033] Example: After the limit fixation is completed, the main cylinder 105 can be opened to control the welding machine 106 to move down until the welding end of the welding machine 106 contacts the connection between the two sleeves, and the welding process is carried out at the connection between the two sleeves. At the same time, the valve at the top of the first three-way valve 202 is opened, and the high-pressure water enters the interior of the power tank 201 and is discharged through the top of the power tank 201 and enters the interior of the second three-way valve 203. When the high-pressure water enters the power tank 201, it can drive the main impeller 206 to rotate. At this time, the power shaft 205 rotates accordingly and drives the auxiliary rotating roller 4 to rotate. At this time, the auxiliary rotating roller 4 can drive the two sleeves to rotate synchronously by relying on the surface friction force, and cooperate with the welding machine 106 at the top to complete the circumferential welding process. To address the weight issue of the casing, on the one hand, the blade area and angle of the main impeller 206 are optimized to maximize the conversion of the kinetic energy of the high-pressure water flow into rotational torque; on the other hand, the surface of the auxiliary rotating roller 4 is provided with concave and convex textures to increase friction, ensuring that while providing stable support for the casing, it can drive it to rotate at a uniform speed with sufficient frictional torque to achieve stable circumferential welding.

[0034] By utilizing the combination of the water inlet assembly 2, the auxiliary rotating roller 4, and the welding frame assembly 1, the device can quickly achieve the limiting and fixing of the sleeve, and then automatically drive the auxiliary rotating roller 4 to rotate. The fixed sleeve can be actively rotated by the auxiliary rotating roller 4. Combined with the welding at the top, rapid circumferential welding between the two sleeves can be quickly achieved. The entire welding process can be completed quickly without the need to manually rotate the sleeve during welding, reducing safety risks and improving overall welding efficiency.

[0035] like Figure 2 and Figure 7As shown, the adjusting assembly 5 includes a movable plate 501 located directly below the auxiliary rotating roller 4. First fixed seats 502 are fixedly installed at the four corners of the top of the movable plate 501. The ends of the first fixed seats 502 away from the movable plate 501 are movably connected to connecting rods 505 via rotating shafts. The ends of the connecting rods 505 away from the first fixed seats 502 are movably connected to second fixed seats 503 via rotating shafts. The adjusting assembly 5 also includes a mounting plate 504. The top of the mounting plate 504 is connected to the bottom of the guide block 7, and the front and rear sides of the bottom of the mounting plate 504 are connected to the second fixed seats 503. The adjusting assembly 5 also includes a fixed tube located directly below the movable plate 501. 506, the bottom end of the fixed tube 506 is connected to the top end of the base 101. An air intake valve 507 is fixedly connected to the front end of the fixed tube 506 near the top end. The air intake valve 507 is connected to the rear end of the No. 1 three-way valve 202. A piston plate 508 is movably sleeved inside the fixed tube 506. A piston rod 509 is fixedly installed at the top end of the piston plate 508. The top end of the piston rod 509 passes through the top end of the fixed tube 506 and is connected to the bottom end of the movable plate 501. A limit spring 5010 is movably sleeved on the outer side of the piston rod 509. The upper and lower ends of the limit spring 5010 are connected to the top end of the inner cavity of the fixed tube 506 and the top end of the piston plate 508, respectively.

[0036] During the welding of the sleeve, an external high-pressure water pump can be turned on to input high-pressure water into the No. 1 three-way valve 202. At this time, the valve at the rear end of the No. 1 three-way valve 202 can be opened, and the high-pressure water can enter the fixed pipe 506 through the No. 1 three-way valve 202 and the air inlet valve 507, and apply pressure to the piston plate 508. The fixed pipe 506 and the piston plate 508 form a hydraulic cylinder structure. The pressure generated by the high-pressure water acts on the effective area of ​​the piston plate 508, which can generate a huge thrust. This thrust is sufficient to overcome the weight of the sleeve and the disturbance during the welding process. At this time, the piston... Plate 508 moves downwards, causing piston rod 509 to move downwards. At this time, limit spring 5010 is stretched, and a pulling force is applied to movable plate 501. Movable plate 501 moves downwards, causing multiple first fixed seats 502 to move downwards. Multiple connecting rods 505 deflect inwards, causing two mounting plates 504 to move closer together, and causing guide block 7 to move relative to adjusting guide rail 103. At this time, two clamping rings 6 move closer together until they contact the outer surfaces of the two sleeves, thereby generating a stable and reliable clamping force and completing the limiting and fixing process of the two sleeves.

[0037] like Figure 1 and Figure 2 as well as Figure 9 and Figure 10As shown, the auxiliary pushing assembly 8 includes an extension guide rail 801, which is connected to the rear end of the clamping ring 6. An adjusting block 802 is movably engaged inside the extension guide rail 801, allowing the adjusting block 802 to move left and right relative to the extension guide rail 801. An electromagnetic block 804 is mounted on one end of the adjusting block 802, and an elastic telescopic rod 803 is mounted on one end of the inner cavity of the extension guide rail 801. The other end of the elastic telescopic rod 803 is connected to the adjusting block 802. When the elastic telescopic rod 803 is in its initial state, the electromagnetic block 804 is not engaged with the extension guide rail 802. The inner side of the 1 is adsorbed and connected. A pusher roller 805 is movably installed on one side of the adjusting block 802 through the frame. A water spray tank 806 is installed at the top of the frame. The input end of the water spray tank 806 is fixedly connected to the water supply hose 204. The output end of the water spray tank 806 is located on one side of the sleeve. A main shaft 807 is movably installed in the middle of the water spray tank 806. The bottom end of the main shaft 807 passes through the bottom end of the water spray tank 806 and is connected to the pusher roller 805. A secondary impeller 808 located inside the water spray tank 806 is fixedly sleeved on the outer side of the main shaft 807. The two auxiliary impellers 808 are installed in opposite directions to ensure that the two pusher rollers 805 can rotate relative to each other to complete the pushing of the sleeve.

[0038] Example: After welding two sleeves is completed, another sleeve can be connected to the rear end of the welded sleeve, and the input of high-pressure water to the rear end of the No. 1 three-way valve 202 is stopped. At this time, the adjusting component 5 can automatically reset and release the limiting clamp on the sleeve. At the same time, the electromagnetic block 804 is activated. At this time, the electromagnetic block 804 can be attracted and connected to the side of the extension guide rail 801, and the elastic telescopic rod 803 is stretched, driving the pusher roller 805 to move towards the sleeve until the outer side of the pusher roller 805 is in contact with the sleeve. When the high-pressure water is touched, it can enter the interior of the two spray tanks 806 through the No. 2 three-way valve 203 and the water supply hose 204, and drive the auxiliary impeller 808 to rotate. At this time, the pusher roller 805 at the bottom rotates accordingly. Through the relative rotation of the left and right pusher rollers 805, the sleeve is pushed until the sleeve connection at the tail end is displaced to the bottom of the welding machine 106, so that the auxiliary pusher assembly 8 can be reset and the limiting clamping process is completed again through the two clamping rings 6. By repeating the above process, the continuous welding of the sleeve can be completed.

[0039] By utilizing the coordinated action of the water inlet assembly 2, the auxiliary pusher assembly 8, and the adjustment assembly 5, the device can quickly release the limiting fixation of the sleeves after the welding of two sleeves is completed. The auxiliary pusher assembly 8 enables the sleeves to be pushed quickly, and the welding process of subsequent sleeves can be completed continuously. The entire welding process is completed continuously, and it is only necessary to match the subsequent sleeves with the front sleeves. This can significantly shorten the welding time between multiple sleeves and improve the overall welding efficiency.

[0040] Throughout the welding process, high-pressure water can enter the interior of the spray tank 806 through the water delivery hose 204. When the pusher roller 805 rotates, the high-pressure water can be discharged from one side of the spray tank 806. At this time, the high-pressure water can act on the surface of the casing, directly carrying away the heat from the casing surface and completing the welding debris removal process. It is particularly important to note that, in order to avoid weld deformation or cracking due to rapid temperature differences, the cooling and debris removal in this device are not synchronized with welding. Specifically, when the high-pressure water is discharged from the spray tank 806, the position and angle of its nozzle are set to spray towards the casing surface at a certain safe distance from the weld, rather than directly impacting the weld pool or the newly solidified weld. In addition, the opening timing of the No. 2 three-way valve 203 can be controlled by the program to achieve large-scale cooling and cleaning of the high-pressure water after welding is completed and after a short period of natural cooling (e.g., 3-5 seconds) and initial solidification of the weld. This control method effectively reduces the temperature of the entire workpiece by utilizing water flow, facilitating subsequent operations, and removes welding spatter. It also effectively avoids the risk of weld quality degradation caused by improper rapid cooling processes, ensuring the successful achievement of the welding objective.

[0041] By utilizing the cooperation between the water inlet assembly 2 and the auxiliary pusher assembly 8, the high-pressure water is controlled to achieve the cooling and debris removal process on the casing surface. At the same time, when the high-pressure water flows through the water inlet assembly 2 and the auxiliary pusher assembly 8, it can provide power to the auxiliary rotating roller 4 and the pusher roller 805, realize the rotation of the casing and the active pushing of the casing, improve the degree of welding automation, shorten the preparation time, and further improve the welding efficiency.

[0042] Working principle and usage process: When performing continuous welding of the sleeves, both sleeves can be placed above the connecting frame 102, while keeping the bottom end of the sleeve in contact with the top end of the auxiliary rotating roller 4. The two sleeves are then joined end to end, and the water inlet assembly 2 is connected to an external water pump to complete the preparations for continuous welding of the sleeves. When welding the sleeves, an external high-pressure water pump can be turned on to input high-pressure water into the interior of the No. 1 three-way valve 202. At this time, the valve at the rear end of the No. 1 three-way valve 202 can be opened. The high-pressure water can then enter the interior of the fixed pipe 506 through the No. 1 three-way valve 202 and the air inlet valve 507, and apply pressure to the piston plate 508. The piston plate 508 moves down and drives the piston rod 509 to move down. At this time, the limit spring 5010 is stretched and applies tension to the movable plate 501. The movable plate 501 moves down and drives multiple first fixed seats 502 to move down. Multiple connecting rods 505 deflect inward and drive the two mounting plates 504 to move closer together. The guide block 7 moves relative to the adjusting guide rail 103. At this time, the two clamping rings 6 move closer together until they contact the outer surfaces of the two sleeves, completing the limiting and fixing process of the two sleeves. After the limit is fixed, the main cylinder 105 can be opened to control the welding machine 106 to move down until the welding end of the welding machine 106 contacts the connection between the two sleeves, and the welding process is carried out at the connection between the two sleeves. At the same time, the valve at the top of the first three-way valve 202 is opened, and the high-pressure water enters the interior of the power tank 201 and is discharged through the top of the power tank 201 and enters the interior of the second three-way valve 203. When the high-pressure water enters the power tank 201, it can drive the main impeller 206 to rotate. At this time, the power shaft 205 rotates and drives the auxiliary rotating roller 4 to rotate. At this time, the auxiliary rotating roller 4 can drive the two sleeves to rotate synchronously by relying on the surface friction force, and cooperate with the welding machine 106 at the top to complete the circumferential welding process. After welding two sleeves is completed, another sleeve can be connected to the rear end of the welded sleeve, and the input of high-pressure water to the rear end of the No. 1 three-way valve 202 is stopped. At this time, the adjusting component 5 can automatically reset and release the limiting clamp on the sleeve. At the same time, the electromagnetic block 804 is activated. The electromagnetic block 804 can then be attracted and connected to the side of the extension guide rail 801, and the elastic telescopic rod 803 is stretched, driving the pusher roller 805 to move towards the sleeve until the outer side of the pusher roller 805 contacts the sleeve. At this time, high-pressure water can enter the interior of the two spray tanks 806 through the No. 2 three-way valve 203 and the water supply hose 204, and drive the auxiliary impeller 808 to rotate. At this time, the pusher roller 805 at the bottom rotates accordingly. Through the relative rotation of the left and right pusher rollers 805, the sleeve is pushed until the sleeve connection at the tail end is displaced to the bottom of the welding machine 106, so that the auxiliary pusher assembly 8 can be reset, and the limiting clamping process is completed again through the two clamping rings 6. By repeating the above process, the continuous welding of the sleeve can be completed. Furthermore, during the entire welding process, high-pressure water can enter the interior of the spray tank 806 through the water delivery hose 204. When the pusher roller 805 rotates, the high-pressure water can be discharged from one side of the spray tank 806. At this time, the high-pressure water can act on the surface of the sleeve, and the heat on the surface of the sleeve can be directly carried away by the flowing high-pressure water, thus completing the process of removing welding debris.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous welding apparatus for sleeves, comprising a welding frame assembly (1), characterized in that: The welding frame assembly (1) has a water inlet assembly (2) on its front side. The welding frame assembly (1) includes a base (101). A connecting frame (102) is fixedly installed on the top of the base (101). Adjustable guide rails (103) are installed on both the left and right sides of the connecting frame (102). A top frame (104) is installed on the top of the connecting frame (102). A main cylinder (105) is fixedly installed in the middle of the inner top wall of the top frame (104). A welding machine (106) is installed at the output end of the main cylinder (105). Locking frames (3) are installed on both the front and rear sides of the bottom of the connecting frame (102). An auxiliary rotating roller (4) is movably installed between the two locking frames (3). An adjusting component (5) is installed in the middle of the top of the base (101). A guide block (7) is movably engaged inside the adjusting guide rail (103). The bottom of the guide block (7) is connected to the left and right sides of the top of the adjusting component (5). A clamping ring (6) is fixedly installed on the top of the guide block (7). An auxiliary pushing component (8) is installed at the rear end of the clamping ring (6). The high-pressure water flow input by the water inlet assembly (2) acts on the adjustment assembly (5), and the distance between the two clamping rings (6) is adjusted through the adjustment assembly (5), and the sleeve is clamped and limited. At the same time, the high-pressure water acts on the auxiliary rotating roller (4) through the water inlet assembly (2) to realize the rotation of the sleeve, and acts on the auxiliary pushing assembly (8) to realize the active movement of the sleeve. The auxiliary feeding assembly (8) includes an extension guide rail (801), which is connected to the rear end of the clamping ring (6). An adjustment block (802) is movably engaged inside the extension guide rail (801). The adjustment block (802) moves left and right relative to the extension guide rail (801). An electromagnetic block (804) is installed at one end of the adjustment block (802). An elastic telescopic rod (803) is installed at one end of the inner cavity of the extension guide rail (801). The other end of the elastic telescopic rod (803) is connected to the adjustment block (802). When the elastic telescopic rod (803) is in the initial state, the electromagnetic block (804) is not attracted to the inner surface of the extension guide rail (801).

2. The continuous welding apparatus for sleeves according to claim 1, characterized in that: The water inlet assembly (2) includes a power tank (201), which is installed on the front of the locking frame (3). The water inlet assembly (2) also includes a No. 1 three-way valve (202), the rear end of which is fixedly connected to the regulating assembly (5), the top end of which is connected to the bottom end of the power tank (201), and the front end of which is connected to an external high-pressure water pump.

3. The continuous welding apparatus for sleeves according to claim 2, characterized in that: A power shaft (205) is movably installed in the middle of the power tank (201). A main impeller (206) located inside the power tank (201) is fixedly sleeved on the outer side of the power shaft (205). A second three-way valve (203) is fixedly connected to the top of the power tank (201). Water delivery hoses (204) are fixedly connected to both the left and right ends of the second three-way valve (203). The end of the water delivery hose (204) away from the second three-way valve (203) is connected to the auxiliary pushing assembly (8).

4. The continuous welding apparatus for sleeves according to claim 3, characterized in that: The adjustment assembly (5) includes a movable plate (501) located directly below the auxiliary rotating roller (4). A first fixed seat (502) is fixedly installed at each of the four corners of the top of the movable plate (501). The end of the first fixed seat (502) away from the movable plate (501) is movably connected to a connecting rod (505) via a rotating shaft. The end of the connecting rod (505) away from the first fixed seat (502) is movably connected to a second fixed seat (503) via a rotating shaft.

5. The continuous welding apparatus for sleeves according to claim 4, characterized in that: The adjustment component (5) also includes a mounting plate (504), the top of which is connected to the bottom of the guide block (7), and the front and rear sides of the bottom of the mounting plate (504) are connected to the second fixed seat (503).

6. The continuous welding apparatus for sleeves according to claim 5, characterized in that: The adjustment assembly (5) also includes a fixed tube (506) located directly below the movable plate (501). The bottom end of the fixed tube (506) is connected to the top end of the base (101). An air intake valve (507) is fixedly connected to the front end of the fixed tube (506) near the top end. The air intake valve (507) is connected to the rear end of the No. 1 three-way valve (202).

7. The continuous welding apparatus for sleeves according to claim 6, characterized in that: A piston plate (508) is movably sleeved inside the fixed tube (506). A piston rod (509) is fixedly installed at the top of the piston plate (508). The top of the piston rod (509) passes through the top of the fixed tube (506) and is connected to the bottom of the movable plate (501). A limit spring (5010) is movably sleeved on the outer side of the piston rod (509). The upper and lower ends of the limit spring (5010) are respectively connected to the top of the inner cavity of the fixed tube (506) and the top of the piston plate (508).

8. The continuous welding apparatus for sleeves according to claim 7, characterized in that: A pusher roller (805) is movably mounted on one side of the adjusting block (802) via the frame, and a water spray tank (806) is mounted on the top of the frame. The input end of the water spray tank (806) is fixedly connected to the water delivery hose (204), and the output end of the water spray tank (806) is located on one side of the sleeve.

9. A continuous welding apparatus for sleeves according to claim 8, characterized in that: A main shaft (807) is movably mounted in the middle of the water spray tank (806). The bottom end of the main shaft (807) passes through the bottom end of the water spray tank (806) and is connected to the pusher roller (805). A secondary impeller (808) located inside the water spray tank (806) is fixedly sleeved on the outer side of the main shaft (807).

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