A kind of nuclear power construction pipe bending and embedding arc welding equipment

Abstract

The present application relates to a kind of nuclear power construction in elbow pipe's seam submerged-arc welding equipment, including base, bearing box and clamping seat;The top of the base is equipped with support frame, the bearing box is configured to the front of support frame, the clamping seat can be rotatably installed on the front of bearing box;The back center position of the clamping seat is equipped with connecting seat A, the side of the bearing box towards clamping seat is reserved with movable cavity, the movable cavity is configured with power source, wherein power source control connecting seat B carries out rotary operation, the opening position of the movable cavity is equipped with guide shell.In the scheme, the clamping seat is connected to connecting seat A and connecting seat B through docking operation, and the linkage seat, elastic member and engagement channel in the slope processing of the limiting assembly ensure that the synchronous rotary motion is stable after docking, avoid shaking or deviation, at this moment, it is ensured that the clamping seat does not need additional tools when assembling, and no other operation is needed after docking, further improve work efficiency.

Description

Technical Field

[0001] This invention belongs to the field of submerged arc welding technology for pipe bends, specifically a submerged arc welding device for pipe bends used in nuclear power plant construction. Background Technology

[0002] In nuclear power plant construction, pipe bends are frequently used. To facilitate the welding of pipe bends, mechanical equipment is now often used to assist in the welding process.

[0003] However, when using submerged arc welding equipment, nuclear power projects require a wide variety of bends with different specifications, resulting in a high frequency of switching welding seats and a large workload. Therefore, the equipment needs to be kept running for long periods of time and requires frequent maintenance. The conventional removal and assembly operations are quite cumbersome, affecting the overall project efficiency.

[0004] In view of this, a submerged arc welding device for bending pipes in nuclear power plant construction is proposed. Summary of the Invention

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the following technical problems in the existing technology: When submerged arc welding equipment is used, nuclear power projects require a variety of bends with different specifications, resulting in a high frequency of switching welding seats and a large workload. Therefore, the equipment needs to be kept running for a long time and requires frequent maintenance. The conventional removal and assembly operations are cumbersome, which affects the overall project efficiency.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a submerged arc welding device for bending pipes in nuclear power construction, comprising a base, a bearing box and a clamping seat;

[0008] A support frame is mounted on the top of the base, the carrier box is disposed on the front of the support frame, and the clamping seat is rotatably mounted on the front of the carrier box;

[0009] A connecting seat A is installed at the center of the back of the clamping seat. A movable cavity is reserved on the side of the bearing box facing the clamping seat. A power source is configured in the movable cavity, wherein the power source controls the connecting seat B to perform a rotation operation. A guide shell is installed at the opening of the movable cavity.

[0010] The guide shell has a hinged connector B. The specifications of the connector A match the opening specifications of the guide shell. The joint between the connector B and the connector A is equipped with a limiting component. The guide shell has a pre-reserved guiding channel, and the connector B is located in the guiding channel. The outer contour of the connector B is equipped with a guide hollow disk. The connector B is smoothly hinged in the guide shell by the guide hollow disk. In this solution, the connector A and the connector B can be assembled. The connector B can rotate synchronously with the connector A. The connector A and the connector B are connected by the limiting component, which ensures the stability of the connection and is also convenient for removal and maintenance. The guide shell can protect the connector B.

[0011] The connecting seat B is milled with a vertical channel B on the side facing the connecting seat A, and a temporary locking accessory is telescopically movable in the vertical channel B;

[0012] The guide shell is milled with a vertical channel A, and the specifications of the vertical channel A match those of the vertical channel B.

[0013] As a preferred technical solution for submerged arc welding equipment for bends in nuclear power plant construction, a welding machine is placed on the side of the base, and a guide frame is configured at the top of the support frame. The guide frame is used to straighten and organize the wires. The welding machine has wires connected to it, and the wires are wound around the guide frame and connected to a welding head. The welding head is used to perform submerged arc welding on the bends in the nuclear power plant construction process.

[0014] As a preferred technical solution for submerged arc welding equipment for bending pipes in nuclear power construction, the clamping seat is equipped with a clamp and a U-frame on its front side. The U-frame is threaded with a threaded rod, and a clamp is also provided at one end of the threaded rod. The cooperation of multiple clamps can clamp bends of different specifications.

[0015] As a preferred technical solution for submerged arc welding equipment for bending pipes in nuclear power construction, the limiting component includes a limiting cavity, a linkage seat A, a vertical arm, and a linkage seat B. One side of the linkage seat A is sloped, and one side of the linkage seat B is also sloped. The slope angles of the linkage seat A and the linkage seat B are the same.

[0016] As a preferred technical solution for submerged arc welding equipment for bending pipes in nuclear power construction, the limiting cavity is milled on the side of the connecting seat B facing the connecting seat A, the linkage seat A moves telescopically in the limiting cavity, and an elastic element A is arranged at the middle position of the inner edge of the linkage seat A and the connecting seat B.

[0017] As a preferred technical solution for submerged arc welding equipment for pipe bending in nuclear power plant construction, the vertical arm is positioned at the back of the connecting seat A, and the linkage seat B is positioned at the side of the vertical arm. The linkage seat B has a locking groove milled close to the docking position of the vertical arm. During the docking process of connecting seat A and connecting seat B, the linkage seat B first passes through the opening of the limiting cavity and enters its middle position. As connecting seat A gradually rotates, the linkage seat B and linkage seat A align at this moment. Under the action of the same slope angle, as the rotation continues, the linkage seat A is linked to perform telescopic movement. When the linkage seat A corresponds to the locking groove position, under the action of elastic element A, the linkage seat A will enter the locking groove. At this moment, the state of connecting seat B and connecting seat A is defined.

[0018] As a preferred technical solution for submerged arc welding equipment for pipe bending in nuclear power plant construction, one side of the linkage seat A is equipped with an extension pad, and the temporary locking accessory includes a locking rod and a magnetic pad. One end of the locking rod is connected to the extension pad, and the magnetic pad is installed on the other end of the locking rod. During the docking process of the connecting seat A and the connecting seat B, the linkage seat B first passes through the opening of the limiting cavity and enters its middle position. As the connecting seat A gradually rotates, the linkage seat B and the linkage seat A are aligned. At this moment, the linkage seat B pushes against the linkage seat A to allow the connecting seat B to rotate. When the temporary locking accessory and the vertical channel A are aligned, under the action of the same slope angle, the linkage seat A is linked to perform telescopic movement. At this moment, the locking rod is linked to insert into the vertical channel A. At this moment, the connecting seat B and the guide shell remain stationary. As the rotation of the connecting seat A continues, the linkage seat A corresponds to the engagement groove position, and under the action of the elastic element A, the linkage seat A will enter the engagement groove. At this moment, the state of the connecting seat B and the connecting seat A is limited.

[0019] As a preferred technical solution for submerged arc welding equipment for bending pipes in nuclear power construction, the back of the parallel pad is hinged with a linkage cap, the inner edge of the linkage cap is milled with a spiral deep groove, and a magnet is installed on the inner edge of the upper wall of the linkage cap.

[0020] As a preferred technical solution for submerged arc welding equipment for bending pipes in nuclear power plant construction, the bearing box has a linkage cavity milled around the opening of the movable cavity. The linkage cap is fitted into the linkage cavity. A protrusion is installed on the inner edge of the opening of the linkage cavity, and the protrusion is located in a spiral deep groove. When the parallel pad is pressed towards the bearing box, the linkage cap extends into the linkage cavity. Under the action of the protrusion and the spiral deep groove, the linkage cap can rotate, so that the position of the magnet can rotate to the position corresponding to the position of the vertical channel A. At this time, the magnet is also close to the position of the vertical channel A, which can attract the magnetic pad, thereby facilitating the maintenance or replacement of the clamping seat.

[0021] As a preferred technical solution for submerged arc welding equipment for bending pipes in nuclear power construction, a T-shaped guide is installed at the edge of the parallel pad, and a guide cavity is reserved at the edge of the bearing box. The T-shaped guide moves telescopically in the guide cavity, and an elastic element B is arranged between the T-shaped guide and the inner edge of the guide cavity to facilitate the resetting operation of the parallel pad.

[0022] The beneficial effects of this invention are:

[0023] 1. In this solution, the clamping seat is connected to the connecting seat A and the connecting seat B through docking operation. The linkage seat, elastic element and locking groove in the limited components with slope treatment ensure that the synchronous rotational movement is stable after docking, avoiding shaking or displacement. At this time, it is ensured that the clamping seat can be assembled without additional tools and no other operation is required after docking, which further improves work efficiency.

[0024] 2. This solution uses linkage A, locking rod, vertical channel B and vertical channel A to enable a temporary locking effect when connecting seat A is docked with connecting seat B, preventing the phenomenon of connecting seat B rotating during normal docking. This is because the motor drives connecting seat B to rotate, and connecting seat B can be operated to rotate on the motor, thereby improving the stability during docking.

[0025] 3. When this solution requires the use of a large-sized clamping base or maintenance, simply press the parallel pad to remove the clamping base. This avoids the operational difficulties caused by insufficient space on the back of the conventional clamping base and allows for quick operation without the need for additional tools.

[0026] 4. The clamping base in this solution is equipped with multiple clamps on the front, which can be used to clamp different specifications of bent pipes within an appropriate range, avoiding the trouble of frequently changing clamps and improving the versatility and applicability of the equipment.

[0027] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0029] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0030] Figure 2 This is a cross-sectional schematic diagram of the carrier box of the present invention.

[0031] Figure 3 This is a schematic diagram of the parallel pad section of the present invention.

[0032] Figure 4 This is a schematic diagram of the linkage cavity of the present invention.

[0033] Figure 5 This is a schematic diagram of connector A and connector B of the present invention.

[0034] Figure 6 This is a schematic diagram of the guide shell and connector B of the present invention.

[0035] Figure 7 This is a schematic diagram of the connector B of the present invention.

[0036] Figure 8 This is a cross-sectional schematic diagram of the connector B of the present invention.

[0037] Figure 9 This is a schematic diagram of connector A of the present invention.

[0038] Reference numerals: 100, base; 101, support frame; 102, guide frame; 103, welding machine; 104, wire; 105, welding head; 200, carrier box; 201, movable cavity; 202, power source; 203, guide cavity; 204, linkage cavity; 205, protrusion; 300, clamping seat; 301, clamp; 302, U-frame; 303, threaded rod; 400, parallel pad; 401, T-shaped guide; 402, elastic element B; 403, linkage cap; 4 04. Spiral deep groove; 405. Magnet; 500. Connecting seat A; 501. Guide shell; 502. Vertical channel A; 503. Connecting seat B; 504. Guide hollow plate; 505. Limiting cavity; 506. Guiding channel; 507. Vertical channel B; 508. Temporary locking accessory; 509. Linkage seat A; 510. Elastic element A; 511. Extension pad; 512. Locking rod; 513. Magnetic pad; 514. Vertical arm; 515. Engaging groove; 516. Linkage seat B. Detailed Implementation

[0039] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0041] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0042] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0043] Example, refer to Figure 1 A submerged arc welding device for bending pipes in nuclear power plant construction includes a base 100, a bearing box 200, and a clamping seat 300.

[0044] A support frame 101 is mounted on the top of the base 100, a carrier box 200 is disposed on the front of the support frame 101, and a clamping seat 300 is rotatably mounted on the front of the carrier box 200.

[0045] A welding machine 103 is placed on the side of the base 100, and a guide frame 102 is arranged on the top of the support frame 101. The guide frame 102 is used to straighten and organize the wire 104. The wire 104 is connected to the welding machine 103. The wire 104 is wound around the guide frame 102 and connected to the welding head 105. The welding head 105 is used to perform submerged arc welding on the bends in the nuclear power construction process.

[0046] The clamping base 300 is equipped with a clamp 301 and a U-frame 302 on its front side. The U-frame 302 is threaded with a threaded rod 303, and a clamp 301 is also provided at one end of the threaded rod 303. The cooperation of multiple clamps 301 can clamp bending materials of different specifications.

[0047] Reference Figure 2 , 5 6. A connecting seat A500 is installed at the center of the back of the clamping seat 300. The side of the carrier box 200 facing the clamping seat 300 has a reserved movable cavity 201. A power source 202 is configured in the movable cavity 201, wherein the power source 202 controls the connecting seat B503 to perform a rotation operation. A guide shell 501 is installed at the opening of the movable cavity 201.

[0048] The guide shell 501 is hinged with a connecting seat B503. The specifications of the connecting seat A500 are consistent with the opening specifications of the guide shell 501. The connecting seat B503 and the connecting seat A500 are jointly configured with a limiting component at their mating point. The guide shell 501 has a reserved guiding channel 506. The connecting seat B503 is located in the guiding channel 506. The outer contour of the connecting seat B503 is configured with a guide hollow disk 504. The connecting seat B503 is smoothly hinged in the guide shell 501 by means of the guide hollow disk 504.

[0049] In this solution, connector A500 and connector B503 can be assembled. Connector B503 can rotate synchronously with connector A500. Connector A500 and connector B503 are connected by limiting components, which ensures the stability of the connection and makes it convenient to remove and maintain. Guide shell 501 can protect connector B503.

[0050] Reference Figure 5-9 The limiting components include a limiting cavity 505, a linkage seat A509, a vertical arm 514, and a linkage seat B516. One side of the linkage seat A509 is sloped, and one side of the linkage seat B516 is also sloped. The slope angles of the linkage seat A509 and the linkage seat B516 are the same.

[0051] A limiting cavity 505 is milled on the side of the connecting seat B503 facing the connecting seat A500. The linkage seat A509 moves telescopically in the limiting cavity 505. An elastic element A510 is arranged at the middle position of the inner edge of the linkage seat A509 and the connecting seat B503.

[0052] A vertical channel B507 is milled on the side of the connecting seat B503 facing the connecting seat A500, and a temporary locking accessory 508 is telescopically movable in the vertical channel B507;

[0053] The vertical arm 514 is located at the back of the connecting seat A500, and the linkage seat B516 is located on the side of the vertical arm 514. The linkage seat B516 is milled with a locking groove 515 close to the docking position of the vertical arm 514.

[0054] During the docking process of connecting seat A500 and connecting seat B503, linkage seat B516 first passes through the opening of the limiting cavity 505 and enters its middle position. As connecting seat A500 gradually rotates, linkage seat B516 and linkage seat A509 are aligned. Under the action of the same slope angle, as the rotation continues, linkage seat A509 is linked to perform telescopic movement. When linkage seat A509 corresponds to the engagement groove 515, under the action of elastic element A510, linkage seat A509 will enter the engagement groove 515. At this moment, the state of connecting seat B503 and connecting seat A500 is limited.

[0055] Reference Figure 3 , 6 And 8, one side of the linkage seat A509 is provided with an extension pad 511, and the temporary locking accessory 508 includes a locking rod 512 and a magnetic pad 513. One end of the locking rod 512 is connected to the extension pad 511, and the magnetic pad 513 is installed on the other end of the locking rod 512.

[0056] A vertical channel A502 is milled on the guide shell 501, and the specifications of the vertical channel A502 match the specifications of the vertical channel B507.

[0057] During the docking process of connectors A500 and B503, linkage B516 first passes through the opening of the limiting cavity 505 and enters its middle position. As connector A500 gradually rotates, linkage B516 and linkage A509 align. At this moment, linkage B516 pushes against linkage A509, causing connector B503 to rotate. When the temporary locking accessory 508 and the vertical channel A502 are aligned, under the action of the same slope angle... At this time, the linkage seat A509 is linked to perform telescopic movement, and the locking rod 512 is linked to be inserted into the vertical channel A502. At this time, the connecting seat B503 and the guide shell 501 remain stationary. As the connecting seat A500 continues to rotate, the linkage seat A509 corresponds to the position of the engagement groove 515, and under the action of the elastic element A510, the linkage seat A509 will enter the engagement groove 515. At this time, the state of the connecting seat B503 and the connecting seat A500 is limited.

[0058] Reference Figure 2 , 3 4. A linkage cap 403 is hinged to the back of the parallel pad 400. A linkage cavity 204 is milled around the opening of the carrier box 200 near the movable cavity 201. The linkage cap 403 is fitted into the linkage cavity 204. A protrusion 205 is installed on the inner edge of the opening of the linkage cavity 204. A spiral deep groove 404 is milled on the inner edge of the linkage cap 403. The protrusion 205 is in the spiral deep groove 404. A magnet 405 is installed on the inner edge of the linkage cap 403.

[0059] When the parallel pad 400 is pressed toward the carrier box 200, the linkage cap 403 extends into the linkage cavity 204. Under the action of the protrusion 205 and the spiral deep groove 404, the linkage cap 403 can rotate, so that the position of the magnet 405 can rotate to the position corresponding to the position of the vertical channel A502. At this time, the magnet 405 is also close to the position of the vertical channel A502, which can attract the magnetic pad 513, thereby facilitating the maintenance or replacement of the clamping seat 300.

[0060] Reference Figure 2A T-shaped guide 401 is installed at the edge of the parallel pad 400, and a guide cavity 203 is reserved at the edge of the carrier box 200. The T-shaped guide 401 moves in and out of the guide cavity 203. An elastic element B402 is arranged between the T-shaped guide 401 and the inner edge of the guide cavity 203 to facilitate the reset operation of the parallel pad 400.

[0061] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A submerged arc welding device for bends in nuclear power plant construction, characterized in that: Includes a base (100), a carrier box (200), and a clamping seat (300); A support frame (101) is mounted on the top of the base (100), the carrier box (200) is disposed on the front of the support frame (101), and the clamping seat (300) is rotatably mounted on the front of the carrier box (200). A parallel pad (400) is installed at the middle position of the carrier box (200) and the clamping seat (300). A connecting seat A (500) is installed at the center of the back of the clamping seat (300). The side of the carrier box (200) facing the clamping seat (300) has a reserved movable cavity (201). A power source (202) is arranged in the movable cavity (201). A guide shell (501) is installed at the opening of the movable cavity (201). The guide shell (501) is hingedly equipped with a connecting seat B (503). The specifications of the connecting seat A (500) are consistent with the opening specifications of the guide shell (501). The connecting seat B (503) and the connecting seat A (500) are jointly equipped with a limiting component at their docking points. The guide shell (501) has a reserved guiding channel (506). The connecting seat B (503) is located in the guiding channel (506). The outer contour of the connecting seat B (503) is equipped with a guide hollow disk (504). The connecting seat B (503) has a vertical channel B (507) milled on the side facing the connecting seat A (500), and a temporary locking accessory (508) is telescopically movable in the vertical channel B (507). The guide shell (501) is milled with a vertical channel A (502), and the specifications of the vertical channel A (502) match the specifications of the vertical channel B (507); The limiting component includes a limiting cavity (505), a linkage seat A (509), a vertical arm (514), and a linkage seat B (516). One side of the linkage seat A (509) is sloped, and one side of the linkage seat B (516) is also sloped. The slope angles of the linkage seat A (509) and the linkage seat B (516) are the same. The limiting cavity (505) is milled on the side of the connecting seat B (503) facing the connecting seat A (500). The linkage seat A (509) moves in the limiting cavity (505). An elastic element A (510) is arranged at the middle position of the inner edge of the linkage seat A (509) and the connecting seat B (503). The vertical arm (514) is located at the back of the connecting seat A (500), and the linkage seat B (516) is located at the side of the vertical arm (514). The linkage seat B (516) is milled with a locking groove (515) close to the docking position of the vertical arm (514). An extension pad (511) is provided on one side of the linkage seat A (509). The temporary locking accessory (508) includes a locking rod (512) and a magnetic pad (513). One end of the locking rod (512) is connected to the extension pad (511), and the magnetic pad (513) is installed on the other end of the locking rod (512). The back of the parallel pad (400) is hinged with a linkage cap (403), the inner edge of the linkage cap (403) is milled with a spiral deep groove (404), and a magnet (405) is installed on the inner edge of the upper wall of the linkage cap (403). The carrier box (200) has a linkage cavity (204) milled around the opening of the movable cavity (201). The linkage cap (403) is fitted and connected to the linkage cavity (204). A protrusion (205) is installed at the inner edge of the opening of the linkage cavity (204). The protrusion (205) is located in the spiral deep groove (404).

2. The submerged arc welding equipment for bending pipes in nuclear power plant construction according to claim 1, characterized in that: A welding machine (103) is placed on the side of the base (100), and a guide frame (102) is arranged on the top of the support frame (101). A wire (104) is connected to the welding machine (103), and the wire (104) is wound around the guide frame (102) and connected to a welding head (105).

3. The submerged arc welding equipment for bending pipes in nuclear power plant construction according to claim 1, characterized in that: The clamping seat (300) is provided with a clamp (301) and a U-frame (302) on its front side. A threaded rod (303) is threaded on the U-frame (302), and a clamp (301) is also provided at one end of the threaded rod (303).

4. The submerged arc welding equipment for bending pipes in nuclear power plant construction according to claim 1, characterized in that: A T-shaped guide (401) is installed at the edge of the parallel pad (400), and a guide cavity (203) is reserved at the edge of the carrier box (200). The T-shaped guide (401) moves in and out of the guide cavity (203). An elastic element B (402) is arranged between the inner edge of the T-shaped guide (401) and the guide cavity (203).

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