High frequency straight seam welded pipe double radius welding positioning tool

Abstract

The utility model discloses high frequency straight -welded pipe double radius welding positioning frock, including base, the top of base is provided with clamping positioning mechanism, and the rear side of base is provided with installation walking frame, and the inside of installation walking frame is provided with guide groove, and the inside of guide groove is provided with mounting block, and the bottom of mounting block is provided with second mounting plate, and the front side of second mounting plate is provided with mounting seat, and the bottom fixed mounting of mounting seat has welding head, and clamping positioning mechanism includes a plurality of guide rails of fixed mounting in base top and two moving blocks of setting in the outside of guide rail, the utility model discloses installation walking frame and guide groove are installed and contain mounting block, and mounting seat and welding head carry out welding to the pipeline after bending and rolling, and the clamping positioning mechanism is extruded to the port after bending and rolling and is not closed to make it close and be convenient for subsequent welding.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures for high-frequency straight seam welded pipes, specifically to a double-radius welding positioning fixture for high-frequency straight seam welded pipes. Background Technology

[0002] High-frequency straight seam welded steel pipe is a longitudinal welded steel pipe manufactured using high-frequency resistance welding technology. After the steel strip is rolled into a tubular shape, the skin effect and proximity effect generated by the high-frequency current are used to heat the edge of the pipe to a molten state. The weld is then formed by pressing with extrusion rollers. This product has the characteristics of small heat-affected zone, high forming accuracy, and fast production efficiency. The welding speed can reach 20-200 meters / minute. It is suitable for the manufacture of pipes with an outer diameter of less than 660mm and a wall thickness of 6-36mm.

[0003] For high-frequency straight seam welded steel pipes with smaller diameters, welding is often performed directly after bending and forming during production. However, for some pipes with larger diameters, production cannot be continuous, so the material needs to be cut, bent, and then welded. However, during subsequent welding, incomplete bending of the pipe can lead to the inability to close the joint, affecting subsequent welding and failing to meet actual usage requirements. Utility Model Content

[0004] The purpose of this invention is to provide a double-radius welding positioning fixture for high-frequency straight seam welded pipes to solve the positioning problem during welding.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-frequency straight seam welded pipe double-radius welding positioning fixture includes a base, a clamping and positioning mechanism on the top of the base, an installation walking frame on the rear side of the base, a guide groove inside the installation walking frame, an installation block inside the guide groove, a second installation plate at the bottom of the installation block, an installation seat on the front side of the second installation plate, and a welding head fixedly installed at the bottom of the installation seat.

[0007] The clamping and positioning mechanism includes multiple guide rails fixedly installed on the top of the base and two moving blocks located on the outside of the guide rails. The moving blocks have circular extrusion cavities inside.

[0008] As a preferred embodiment of this utility model, a first mounting plate is fixedly installed on the top of the base and on both the front and rear sides of the guide rail. A third hydraulic rod controlled by the same controller is fixedly installed on one side of the first mounting plate. The output end of the third hydraulic rod passes through the first mounting plate and is fixedly connected to one side of the moving block.

[0009] As a preferred embodiment of this utility model, a limiting cavity is provided at the bottom of the moving block, and the moving block is sleeved on the outside of the guide rail through the limiting cavity.

[0010] As a preferred embodiment of this utility model, a first hydraulic rod is fixedly installed on the top of the mounting block, and the output end of the first hydraulic rod passes through the mounting block and is fixedly connected to the top of the second mounting plate.

[0011] As a preferred embodiment of this utility model, a second servo motor is fixedly installed on one side of the second mounting plate, and the output end of the second servo motor passes through the second mounting plate and is fixedly connected to the mounting base.

[0012] As a preferred embodiment of this utility model, a second hydraulic rod is fixedly installed on the guide groove, and one side of the second hydraulic rod is fixedly connected to the mounting block.

[0013] As a preferred embodiment of this utility model, a sliding groove is provided on the rear side of the base, and a slider is slidably connected inside the sliding groove. One side of the slider is fixedly connected to the mounting frame.

[0014] As a preferred embodiment of this utility model, a first servo motor is fixedly installed on the right side of the base, and a threaded rod is fixedly installed on the output end of the first servo motor. The threaded rod passes through the interior of the slide groove and is connected to the slider by a thread.

[0015] Compared with existing technologies, the high-frequency straight seam welded pipe double-radius welding positioning fixture provided by this utility model has the following advantages:

[0016] 1. In this utility model, the base is used to install the mounting frame and the clamping and positioning mechanism. The mounting frame and guide groove are used to accommodate the mounting block. The mounting seat and welding head are used to weld the bent pipe. The clamping and positioning mechanism is used to squeeze the bent end to close it when it is not closed, so that it can be welded later.

[0017] 2. In this utility model, the circular extrusion cavity is used to accommodate the pipe, and the two moving blocks clamp the pipe so that the two end faces come into contact to facilitate subsequent welding. The first mounting plate is used to install the third hydraulic rod, which is used to synchronously push the moving blocks to move to the relatively close side, thereby squeezing and closing the opened pipe to facilitate subsequent welding. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only examples of embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the structure of the moving block in an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the adjustment mechanism structure of the welding mechanism in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the welding mechanism in an embodiment of the present invention.

[0024] Reference numerals: 1. Base; 2. Mounting frame; 3. Clamping and positioning mechanism; 301. First mounting plate; 302. Third hydraulic rod; 303. Moving block; 304. Guide rail; 305. Limiting cavity; 306. Circular extrusion cavity; 4. First servo motor; 5. Slide groove; 6. Threaded rod; 7. Slider; 8. Guide groove; 9. First hydraulic rod; 10. Second mounting plate; 11. Second hydraulic rod; 12. Mounting block; 13. Second servo motor; 14. Mounting seat; 15. Welding head. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an integral connection, or a detachable connection; they can refer to the internal connection of two components; they can refer to a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present invention should be understood according to the specific circumstances.

[0028] like Figures 1-5 As shown, the high-frequency straight seam welded pipe double-radius welding positioning fixture of this utility model embodiment includes a base 1, a clamping and positioning mechanism 3 is provided on the top of the base 1, an installation walking frame 2 is provided on the rear side of the base 1, a guide groove 8 is provided inside the installation walking frame 2, an installation block 12 is provided inside the guide groove 8, a second installation plate 10 is provided at the bottom of the installation block 12, an installation seat 14 is provided on the front side of the second installation plate 10, and a welding head 15 is fixedly installed at the bottom of the installation seat 14. The base 1 is used to install the installation walking frame 2 and the clamping and positioning mechanism 3, the installation walking frame 2 and the guide groove 8 are used to install and accommodate the installation block 12, the installation seat 14 and the welding head 15 are used to weld the bent pipe, and the clamping and positioning mechanism 3 is used to squeeze the bent end to close it when it is not closed, so that it can be welded later.

[0029] The clamping and positioning mechanism 3 includes multiple guide rails 304 fixedly installed on the top of the base 1 and two moving blocks 303 disposed on the outside of the guide rails 304. The moving blocks 303 have a circular extrusion cavity 306 inside. The circular extrusion cavity 306 is used to accommodate the pipe. The two moving blocks 303 clamp the pipe together, so that the two end faces are in contact to facilitate subsequent welding.

[0030] A first mounting plate 301 is fixedly installed on the top of the base 1 and on both the front and rear sides of the guide rail 304. A third hydraulic rod 302 is fixedly installed on one side of the first mounting plate 301. The output end of the third hydraulic rod 302 passes through the first mounting plate 301 and is fixedly connected to one side of the moving block 303. The first mounting plate 301 is used to install the third hydraulic rod 302. The third hydraulic rod 302 is used to synchronously push the moving block 303 to move to a relatively close side, thereby squeezing and closing the opened pipe to facilitate subsequent welding.

[0031] A limiting cavity 305 is provided at the bottom of the movable block 303. The movable block 303 is sleeved on the outside of the guide rail 304 through the limiting cavity 305, thereby increasing the stability of the movable block 303 and facilitating the subsequent compression and fixation of the pipeline.

[0032] A first hydraulic rod 9 is fixedly installed on the top of the mounting block 12. The output end of the first hydraulic rod 9 passes through the mounting block 12 and is fixedly connected to the top of the second mounting plate 10. The first hydraulic rod 9 is used to push the second mounting plate 10 to drive the mounting seat 14 and welding head 15 down, thereby realizing the welding of the pipeline.

[0033] A second servo motor 13 is fixedly installed on one side of the second mounting plate 10. The output end of the second servo motor 13 passes through the second mounting plate 10 and is fixedly connected to the mounting base 14. The second servo motor 13 is configured to drive the rotation of the mounting base 14 and the welding head 15, so that welding can be performed when the pipe weld joint is offset.

[0034] The guide groove 8 is fixedly installed with a second hydraulic rod 11. One side of the second hydraulic rod 11 is fixedly connected to the mounting block 12. The second hydraulic rod 11 is used to push the mounting block 12 to move the mounting seat 14 and the welding head 15, so as to meet the welding of the weld joint in different positions.

[0035] A sliding groove 5 is provided on the rear side of the base 1. A slider 7 is slidably connected inside the sliding groove 5. One side of the slider 7 is fixedly connected to the mounting frame 2. The slider 7 and the sliding groove 5 are used to fix the mounting frame 2 to facilitate the subsequent movement of the mounting frame 2.

[0036] A first servo motor 4 is fixedly installed on the right side of the base 1. A threaded rod 6 is fixedly installed on the output end of the first servo motor 4. The threaded rod 6 passes through the interior of the slide groove 5 and is connected to the slider 7 by a thread. The first servo motor 4, the threaded rod 6, the slider 7 and the thread are used to drive the mounting frame 2 to move the mounting base 14 and the welding head 15, thereby realizing the comprehensive welding of the pipe.

[0037] In use, the bent pipe is placed inside the circular extrusion chamber 306 with the opening facing upwards. The synchronous opening of the third hydraulic rod 302 pushes the two moving blocks 303 to move closer together. Guided by the circular cavity of the circular extrusion chamber 306, the weld joint at the top of the pipe is closed. Depending on which side of the weld joint is located on the vertical plane, the second hydraulic rod 11 drives the mounting block 12 to move the mounting seat 14 and the welding head 15. After the movement is completed, the second servo motor 13 drives the mounting seat 14 and the welding head 15 to rotate according to the welding angle. After adjustment, the first hydraulic rod 9 pushes the second mounting plate 10 to lower the welding head 15 to weld the joint. At the same time, the first servo motor 4 drives the threaded rod 6 to rotate, and the thread drives the slider 7 to move the mounting frame 2. The movement of the mounting frame 2 drives the mounting seat 14 and the welding head 15 to move along the welding direction of the pipe to achieve comprehensive welding of the pipe.

[0038] The foregoing has shown and described the basic principles of the present invention. The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. The above embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Any modifications, equivalent substitutions, and improvements made within the scope of the present invention without departing from the scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-frequency straight seam welded pipe double-radius welding positioning fixture, characterized in that: Includes a base (1), the top of the base (1) is provided with a clamping and positioning mechanism (3), the rear side of the base (1) is provided with a mounting walking frame (2), the interior of the mounting walking frame (2) is provided with a guide groove (8), the interior of the guide groove (8) is provided with a mounting block (12), the bottom of the mounting block (12) is provided with a second mounting plate (10), the front side of the second mounting plate (10) is provided with a mounting seat (14), and the bottom of the mounting seat (14) is fixedly installed with a welding head (15). The clamping and positioning mechanism (3) includes multiple guide rails (304) fixedly installed on the top of the base (1) and two moving blocks (303) disposed on the outside of the guide rails (304). The moving blocks (303) have a circular extrusion cavity (306) inside.

2. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 1, characterized in that: A first mounting plate (301) is fixedly installed on the top of the base (1) and on both the front and rear sides of the guide rail (304). A third hydraulic rod (302) is fixedly installed on one side of the first mounting plate (301). The output end of the third hydraulic rod (302) passes through the first mounting plate (301) and is fixedly connected to one side of the moving block (303).

3. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 1, characterized in that: The bottom of the movable block (303) has a limiting cavity (305), and the movable block (303) is sleeved on the outside of the guide rail (304) through the limiting cavity (305).

4. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 1, characterized in that: A first hydraulic rod (9) is fixedly installed on the top of the mounting block (12). The output end of the first hydraulic rod (9) passes through the mounting block (12) and is fixedly connected to the top of the second mounting plate (10).

5. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 1, characterized in that: A second servo motor (13) is fixedly installed on one side of the second mounting plate (10). The output end of the second servo motor (13) passes through the second mounting plate (10) and is fixedly connected to the mounting base (14).

6. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 1, characterized in that: The guide groove (8) is fixedly installed with a second hydraulic rod (11), and one side of the second hydraulic rod (11) is fixedly connected to the mounting block (12).

7. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 1, characterized in that: The base (1) has a groove (5) on its rear side, and a slider (7) is slidably connected inside the groove (5). One side of the slider (7) is fixedly connected to the mounting frame (2).

8. The high-frequency straight seam welded pipe double-radius welding positioning fixture according to claim 7, characterized in that: A first servo motor (4) is fixedly installed on the right side of the base (1). A threaded rod (6) is fixedly installed at the output end of the first servo motor (4). The threaded rod (6) passes through the interior of the slide groove (5) and is connected to the slider (7) by a thread.

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