Laser welding device for full-liquid-receiving inner floating disc

Abstract

The invention relates to the technical field of floating disc welding, in particular to a full-liquid-receiving inner floating disc laser welding device which comprises a workbench, a containing base is fixedly connected to the workbench, a moving frame is arranged on the workbench in a sliding fit mode, a rotating frame is rotationally connected to the moving frame, and laser welding equipment is installed at one end of the rotating frame. A rotating frame is arranged at one end of the placing seat, a baffle cover is arranged at the other end of the rotating frame, a rotating rod is rotatably connected in the baffle cover, an exhaust pipe is fixedly connected to one end of the rotating rod, and a pipeline opening processing mechanism is fixedly connected to the lower side of the rotating rod. And meanwhile, a plurality of positioning blocks are matched to clamp the annular position of the outer edge of the conical annular floating disc, the welding precision, stability and efficiency of the conical annular floating disc can be effectively improved, the automation degree of the device is improved, and the uniformity and consistency of the welding quality are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of floating roof welding technology, and in particular to a laser welding device for a fully liquid-contact floating roof. Background Technology

[0002] A fully contacted internal floating roof (FLP) is a common floating roof design used in liquid storage tanks or liquid collection systems. Its main characteristic is a larger contact area with the liquid, typically used for level control, floating regulation, or in systems for storing and transporting liquids. The FLP design effectively responds to changes in liquid flow, maintaining system stability and accuracy.

[0003] With the advancement of automation technology, intelligent welding systems are gradually becoming an important component of industrial production. When handling workpieces with complex shapes (such as fully wetted internal floating platforms), intelligent welding systems can automatically identify the shape and size of the workpiece, adjust the welding path and angle, and ensure the accuracy and reliability of the welding. Furthermore, intelligent welding systems can also achieve remote monitoring and fault diagnosis through cloud technology, thereby reducing manual intervention and improving production efficiency and product quality.

[0004] The prior art publication CN115740800A provides a laser welding device that achieves automatic welding by clamping with clamping and pressing components and cooperating with welding components, thereby improving processing efficiency and processing accuracy.

[0005] Existing technologies achieve clamping of tubular workpieces during use. However, due to the varying shapes of floating discs in fully wetted liquid environments, welding pipes onto conical floating discs with annular fins presents challenges. The complex shape of these discs (conical at the bottom and annular at the outer edge) and the lack of a suitable positioning structure in existing technologies make it difficult to precisely fix the disc during welding. This can lead to displacement or deformation, affecting welding accuracy and quality. Furthermore, existing technologies are inconvenient for treating the pipe openings of conical floating discs with annular fins. Rust at the pipe openings can cause welding defects, affecting the seal between the pipe opening and the pipe.

[0006] In summary, the existing technology lacks a suitable positioning structure and welding surface pretreatment technology for conical annular floating discs. Summary of the Invention

[0007] The purpose of this invention is to address the shortcomings of the prior art by proposing a laser welding device for a fully liquid-contact internal floating disk.

[0008] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a laser welding device for a fully liquid-contact internal floating disk, comprising a worktable, a placement seat fixedly connected to the worktable, a movable frame slidably connected to the worktable, a rotating frame rotatably connected to the movable frame, a laser welding device mounted on one end of the rotating frame, a baffle provided at the other end of the rotating frame, a rotating rod rotatably connected inside the baffle, an air extraction pipe fixedly connected to one end of the rotating rod, and a pipe inlet processing mechanism fixedly connected to the lower side of the rotating rod.

[0009] Preferably, the placement seat has a conical groove, a movable frame is provided on the lower side of the placement seat, a hydraulic cylinder is fixedly connected to the bottom of the movable frame, the hydraulic cylinder is fixedly connected to the inner wall of the workbench, the top of the movable frame extends into the placement seat and is fixedly connected to a push ring, and a conical floating plate with an annular shape is placed in the conical groove.

[0010] Preferably, the push ring is fixedly connected with a plurality of inclined slot blocks in a ring structure, and push rods are slidably fitted on the inner walls of both sides of the inclined slot blocks. A positioning block is fixedly connected to the top of the push rod, and the positioning block is slidably fitted with the inner wall of the placement seat. One end of the positioning block abuts against the conical annular floating plate.

[0011] Preferably, a hydraulic rod is fixedly connected to one end of the movable frame, and the hydraulic rod is fixedly connected to the worktable. A motor A is fixedly connected to the other end of the movable frame, and the motor A is fixedly connected to the rotating frame.

[0012] Preferably, an electric push rod A is fixedly connected to one end of the baffle, and the electric push rod A is fixedly connected to the rotating frame through it. An annular rack A is fixedly connected to the inner wall of the top of the baffle near the outer side, and an annular rack B is fixedly connected to the inner wall of the top of the baffle near the middle.

[0013] Preferably, one end of the rotating rod passes through the baffle and is fixedly connected to a motor B, the motor B is fixedly connected to the baffle, and the bottom end of the rotating rod is fixedly connected to a receiving net hopper by bolts, the outer wall of the receiving net hopper is in sliding contact with the inner wall of the pipe opening on the conical annular floating plate.

[0014] Preferably, a rotating ring is fixedly connected to one end of the suction pipe, the rotating ring is rotatably connected to the inner wall of the baffle, a fan blade is rotatably connected to the inner wall of the suction pipe, the fan blade shaft extends through the inner wall of the suction pipe to the outside and is fixedly connected to a transmission wheel, and the transmission wheel is meshed with a ring rack A for transmission.

[0015] Preferably, the pipe opening treatment mechanism includes a treatment block, which is fixedly connected to a rotating rod. One end of the treatment block is in frictional contact with the welded joint of the pipe opening of the conical annular floating disc. The inner wall of the treatment block is slidably fitted with a movable plate with an inclined structure. An electric actuator B is fixedly connected to the movable plate. A chamfered block is fixedly connected to the output end of the electric actuator B. The chamfered block is in frictional contact with the welded joint of the pipe opening of the conical annular floating disc. The top of the movable plate passes through the rotating rod and has a sliding groove.

[0016] Preferably, an L-shaped lever is slidably fitted on the inner wall of the slide groove. One end of the L-shaped lever is fixedly connected to a universal joint, which is rotatably connected to a rotating rod. The other end of the universal joint is fixedly connected to an adjusting wheel, which meshes with a ring rack B for transmission.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. By creating a conical groove on the placement seat that matches the shape of the conical annular floating disc, precise positioning can be achieved during welding of the conical annular floating disc. At the same time, multiple positioning blocks can be used to clamp the outer annular part of the conical annular floating disc, which can effectively improve the accuracy, stability and efficiency of welding the conical annular floating disc, reduce human operation errors, improve the automation level of the device, and ensure the uniformity and consistency of welding quality. 2. By setting up a pipe opening treatment mechanism, when the pipe is welded to the pipe opening of the conical floating roof with annular rings, the treatment block can rotate under the drive of the rotating rod to grind the pipe opening of the conical floating roof with annular rings and remove rust. At the same time, when the treatment block rotates, the inclined chamfering block will move back and forth to chamfer the pipe opening of the conical floating roof with annular rings. By grinding to remove impurities and chamfering to optimize the joint transition, welding defects and stress concentration are reduced, and the strength and sealing of the welded joint are improved. At the same time, the automated processing reduces manual intervention and improves production efficiency and consistency. 3. By setting up a baffle, a receiving net hopper, and an exhaust pipe, the pipe opening treatment mechanism can treat the rust on the conical pipe opening with an annular floating plate while simultaneously driving the exhaust pipe to rotate and the fan blades to rotate. This automatically blows the impurities generated during pipe opening treatment into the receiving net hopper for collection, effectively cleaning the impurities generated during pipe opening treatment, maintaining the cleanliness of the working environment and pipe opening, improving welding quality and production efficiency, and reducing manual intervention while improving welding quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a laser welding device for a fully liquid-contact internal floating disk according to the present invention. Figure 2This is a partial cross-sectional schematic diagram of the overall structure of the laser welding device for a fully liquid-contact internal floating disk according to the present invention. Figure 3 This is a partial cross-sectional schematic diagram of the structure of the laser welding device for a fully liquid-contact internal floating disk according to the present invention, including the shield and other structures. Figure 4 This is a partial cross-sectional view of the structure of the laser welding device for a fully liquid-contact internal floating disk according to the present invention, including the placement seat. Figure 5 This is a schematic diagram of the moving frame and other structures of a laser welding device for a fully liquid-contact internal floating disk according to the present invention; Figure 6 This is a cross-sectional schematic diagram of the shield structure of the laser welding device for a fully liquid-contact internal floating disk according to the present invention; Figure 7 This is a partial cross-sectional schematic diagram of the rotating rod structure of a laser welding device for a fully liquid-contact internal floating disk according to the present invention; Figure 8 This is a partial cross-sectional schematic diagram of the air extraction pipe structure of a laser welding device for a fully liquid-contact internal floating disk according to the present invention. Figure 9 This is a partial cross-sectional view of the pipe inlet treatment mechanism of the laser welding device for a fully liquid-contact internal floating disk according to the present invention.

[0019] The following are labeled in the diagram: 1. Workbench; 2. Placement seat; 3. Moving frame; 4. Rotating frame; 5. Laser welding equipment; 6. Baffle; 7. Rotating rod; 8. Evacuation pipe; 9. Pipe inlet treatment mechanism; 201. Conical groove; 202. Moving frame; 203. Hydraulic cylinder; 204. Push ring; 205. Inclined groove block; 206. Push rod; 207. Positioning block; 208. Conical floating disc with annular ring; 301. Hydraulic rod; 302. Motor A; 601. Electric actuator A; 602. Ring rack A; 603. Ring rack B; 701. Motor B; 702. Receiving net hopper; 801. Rotating ring; 802. Fan blade; 803. Transmission wheel; 901. Processing block; 902. Movable plate; 903. Electric actuator B; 904. Chamfered block; 905. Slide groove; 906. L-shaped lever; 907. Universal joint; 908. Adjusting wheel. Detailed Implementation

[0020] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] like Figures 1-9The laser welding device for a fully liquid-contact internal floating disk shown includes a worktable 1, a placement seat 2 fixedly connected to the worktable 1, a movable frame 3 slidably connected to the worktable 1, a rotating frame 4 rotatably connected to the movable frame 3, a laser welding device 5 installed at one end of the rotating frame 4, a baffle 6 provided at the other end of the rotating frame 4, a rotating rod 7 rotatably connected inside the baffle 6, an air extraction pipe 8 fixedly connected to one end of the rotating rod 7, and a pipe inlet processing mechanism 9 fixedly connected to the lower side of the rotating rod 7.

[0022] like Figure 4 As shown, a conical groove 201 is provided on the placement seat 2, and a movable frame 202 is provided on the lower side of the placement seat 2. A hydraulic cylinder 203 is fixedly connected to the bottom of the movable frame 202. The hydraulic cylinder 203 is fixedly connected to the inner wall of the workbench 1. The top of the movable frame 202 extends into the placement seat 2 and is fixedly connected to a push ring 204. A conical floating plate 208 with an annular shape is placed in the conical groove 201.

[0023] Multiple inclined slot blocks 205 are fixedly connected to the push ring 204 in a ring structure. Push rods 206 are slidably fitted on the inner walls of both sides of the inclined slot blocks 205. A positioning block 207 is fixedly connected to the top of the push rod 206. The positioning block 207 is slidably fitted with the inner wall of the placement seat 2, and one end of the positioning block 207 abuts against the conical annular floating disk 208. The conical annular floating disk 208 is placed into the conical groove 201 on the placement seat 2. Then, the hydraulic cylinder 203 drives the push ring 204 connected to the movable frame 202 to move downward, so that the push ring 204 can drive the positioning block 207 connected to the push rod 206 to move through the inclined slot blocks 205.

[0024] By creating a conical groove 201 on the placement seat 2 that matches the shape of the conical annular floating disc 208, precise positioning of the conical annular floating disc 208 can be achieved during welding. At the same time, multiple positioning blocks 207 can be used to clamp the outer annular part of the conical annular floating disc 208, which can effectively improve the accuracy, stability and efficiency of welding the conical annular floating disc 208, reduce human operation errors, improve the automation level of the device, and ensure the uniformity and consistency of welding quality.

[0025] like Figure 5 As shown, a hydraulic rod 301 is fixedly connected to one end of the movable frame 3, and the hydraulic rod 301 is fixedly connected to the worktable 1. A motor A302 is fixedly connected to the other end of the movable frame 3, and the motor A302 is fixedly connected to the rotating frame 4.

[0026] like Figure 6As shown, an electric actuator A601 is fixedly connected to one end of the baffle 6. The electric actuator A601 is fixedly connected to the rotating frame 4 through it. A ring rack A602 is fixedly connected to the inner wall of the top of the baffle 6 near the outer side, and a ring rack B603 is fixedly connected to the inner wall of the top of the baffle 6 near the middle. The inner wall of the bottom of the baffle 6 is inclined.

[0027] like Figure 7 As shown, one end of the rotating rod 7 passes through the baffle 6 and is fixedly connected to a motor B701. The motor B701 is fixedly connected to the baffle 6. The bottom end of the rotating rod 7 is fixedly connected to a receiving net hopper 702 by bolts. The outer wall of the receiving net hopper 702 is in sliding contact with the inner wall of the pipe opening on the conical annular floating plate 208.

[0028] like Figure 8 As shown, a rotating ring 801 is fixedly connected to one end of the extraction pipe 8. The rotating ring 801 is rotatably connected to the inner wall of the baffle 6. A fan blade 802 is rotatably connected to the inner wall of the extraction pipe 8. The shaft end of the fan blade 802 extends through the inner wall of the extraction pipe 8 to the outside and is fixedly connected to a transmission wheel 803. The transmission wheel 803 is engaged with a ring rack A602 for transmission. When the rotating rod 7 rotates, it drives the extraction pipe 8 to rotate. Under the action of the ring rack A602, the engaged transmission wheel 803 drives the connected fan blade 802 to rotate, so that the fan blade 802 draws outside air into the extraction pipe 8 and sprays it out through the extraction pipe 8, blowing the impurities treated at the pipe opening into the receiving hopper 702 for collection and treatment.

[0029] like Figure 9 As shown, the pipe opening treatment mechanism 9 includes a treatment block 901, which is fixedly connected to the rotating rod 7. One end of the treatment block 901 is in frictional contact with the pipe opening weld of the conical annular floating disk 208. The inner wall of the treatment block 901 is inclined and slidably fitted with a movable plate 902. An electric push rod B903 is fixedly connected to the movable plate 902. A chamfer block 904 is fixedly connected to the output end of the electric push rod B903. The chamfer block 904 is in frictional contact with the pipe opening weld of the conical annular floating disk 208. The top of the movable plate 902 passes through the rotating rod 7 and has a sliding groove 905.

[0030] An L-shaped lever 906 is slidably fitted onto the inner wall of the slide groove 905. One end of the L-shaped lever 906 is fixedly connected to a universal joint 907, which is rotatably connected to a rotating rod 7. The other end of the universal joint 907 is fixedly connected to an adjusting wheel 908, which meshes with a ring rack B603 for transmission. A motor B701 drives the rotating rod 7 to rotate, causing the processing block 901 to rotate. Simultaneously, an electric actuator B903 drives a chamfering block 904 to press against the pipe opening. As the processing block 901 rotates, the ring rack B603 causes the adjusting wheel 908 to rotate, which in turn drives the universal joint 907 to rotate. This causes the universal joint 907 to rotate, and the other end of the L-shaped lever 906 slides within the slide groove 905, thereby causing the movable plate 902 to move reciprocally. This allows the chamfering block 904 to chamfer the pipe opening.

[0031] Working principle: When it is necessary to weld a pipe at the pipe opening of the conical annular floating disc 208, the conical annular floating disc 208 is first placed into the conical groove 201 on the placement seat 2. Then, the hydraulic cylinder 203 drives the push ring 204 connected to the movable frame 202 to move down, so that the push ring 204 can drive the positioning block 207 connected to the push rod 206 to move through the inclined groove block 205, so that the positioning block 207 can clamp and fix the outer edge of the conical annular floating disc 208. Then, based on the position of the pipe opening of the conical annular floating disc 208, the motor A302 drives the connected rotating frame 4 to rotate, so that the baffle 6 is aligned with the position of the pipe opening. Then, the hydraulic cylinder 203 drives the movable frame 202 to adjust to a suitable position, so that the baffle 6 covers the pipe opening. At this time, the processing block 901 will contact the pipe opening and insert the receiving net hopper 702 into the pipe opening. Then, the motor B701 drives the rotating rod 7 to rotate, which in turn drives the processing block 901 to rotate. At this time, the electric push rod B903 drives the chamfering block 904 to press against the pipe opening. Simultaneously, as the processing block 901 rotates, the ring rack B603 causes the adjusting wheel 908 to drive the connected universal joint 907 to rotate, which in turn drives the connected L-shaped lever 906 to rotate. The other end of the L-shaped lever 906 slides in the slide groove 905, thereby driving the movable plate 902 to move back and forth, so that the chamfering block 904 can chamfer the pipe opening. Simultaneously, when the rotating rod 7 rotates, it will drive the air extraction pipe 8 to rotate. Under the action of the ring rack A602, the meshing transmission wheel 803 will drive the connected fan blade 802 to rotate, so that the fan blade 802 draws external air into the air extraction pipe 8 and sprays it out through the air extraction pipe 8, blowing the impurities treated at the pipe opening into the receiving net hopper 702 for collection and treatment. After the pipe opening is treated, the electric push rod A601 drives the baffle 6 to retract, so that the laser welding equipment 5 moves to the pipe opening and welds the pipe to the pipe opening.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A laser welding device for a fully liquid-contact internal floating disk, comprising a worktable (1), characterized in that: A placement seat (2) is fixedly connected to the workbench (1). A movable frame (3) is slidably connected to the workbench (1). A rotating frame (4) is rotatably connected to the movable frame (3). A laser welding device (5) is installed at one end of the rotating frame (4). A baffle (6) is provided at the other end of the rotating frame (4). A rotating rod (7) is rotatably connected inside the baffle (6). An air extraction pipe (8) is fixedly connected to one end of the rotating rod (7). A pipe opening processing mechanism (9) is fixedly connected to the lower side of the rotating rod (7).

2. The laser welding device for a fully liquid-contact internal floating disk according to claim 1, characterized in that: The placement seat (2) has a conical groove (201), and a movable frame (202) is provided on the lower side of the placement seat (2). A hydraulic cylinder (203) is fixedly connected to the bottom of the movable frame (202). The hydraulic cylinder (203) is fixedly connected to the inner wall of the workbench (1). The top of the movable frame (202) extends into the placement seat (2) and is fixedly connected to a push ring (204). A conical floating plate (208) with an annular shape is placed in the conical groove (201).

3. The laser welding device for a fully liquid-contact internal floating disk according to claim 2, characterized in that: The push ring (204) has a plurality of inclined slot blocks (205) fixedly connected in a ring structure. Push rods (206) are slidably fitted on both sides of the inner wall of the inclined slot blocks (205). A positioning block (207) is fixedly connected to the top of the push rod (206). The positioning block (207) is slidably fitted with the inner wall of the placement seat (2). One end of the positioning block (207) abuts against the conical ring-shaped floating plate (208).

4. The laser welding device for a fully liquid-contact internal floating disk according to claim 1, characterized in that: One end of the movable frame (3) is fixedly connected to a hydraulic rod (301), which is fixedly connected to the workbench (1). The other end of the movable frame (3) is fixedly connected to a motor A (302), which is fixedly connected to the rotating frame (4).

5. The laser welding device for a fully liquid-contact internal floating disk according to claim 2, characterized in that: One end of the baffle (6) is fixedly connected to an electric push rod A (601), and the electric push rod A (601) is fixedly connected to the rotating frame (4) through it. The inner wall of the top of the baffle (6) is fixedly connected to an annular rack A (602) near the outer side, and the inner wall of the top of the baffle (6) is fixedly connected to an annular rack B (603) near the middle.

6. The laser welding device for a fully liquid-contact internal floating disk according to claim 2, characterized in that: One end of the rotating rod (7) passes through the baffle (6) and is fixedly connected to a motor B (701). The motor B (701) is fixedly connected to the baffle (6). The bottom end of the rotating rod (7) is fixedly connected to a receiving net hopper (702) by bolts. The outer wall of the receiving net hopper (702) is in sliding contact with the inner wall of the pipe opening on the conical annular floating plate (208).

7. The laser welding device for a fully liquid-contact internal floating disk according to claim 5, characterized in that: One end of the suction pipe (8) is fixedly connected to a rotating ring (801). The rotating ring (801) is rotatably connected to the inner wall of the baffle (6). The inner wall of the suction pipe (8) is rotatably connected to a fan blade (802). The shaft end of the fan blade (802) extends through the inner wall of the suction pipe (8) to the outside and is fixedly connected to a transmission wheel (803). The transmission wheel (803) meshes with the ring rack A (602) for transmission.

8. The laser welding device for a fully liquid-contact internal floating disk according to claim 5, characterized in that: The pipe opening processing mechanism (9) includes a processing block (901), which is fixedly connected to the rotating rod (7). One end of the processing block (901) is in frictional contact with the pipe opening weld of the conical annular floating disk (208). The inner wall of the processing block (901) is slidably fitted with a movable plate (902). An electric push rod B (903) is fixedly connected to the movable plate (902). A chamfer block (904) is fixedly connected to the output end of the electric push rod B (903). The chamfer block (904) is in frictional contact with the pipe opening weld of the conical annular floating disk (208). The top of the movable plate (902) passes through the rotating rod (7) and has a sliding groove (905).

9. The laser welding device for a fully liquid-contact internal floating disk according to claim 8, characterized in that: The inner wall of the slide groove (905) is provided with an L-shaped lever (906) that slides in fit with it. One end of the L-shaped lever (906) is fixedly connected to a universal joint (907). The universal joint (907) is rotatably connected to the rotating rod (7). The other end of the universal joint (907) is fixedly connected to an adjusting wheel (908). The adjusting wheel (908) is meshed with the ring rack B (603) for transmission.

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