A butt joint clamp for welding titanium alloy straight pipe

Abstract

The utility model discloses a titanium alloy straight pipe fitting welding butt joint clamp, it relates to welding butt joint clamp technical field, including bottom plate, fixed support plate, electric slide rail, mobile support plate, a pair of support cylinder, support frame, telescopic pneumatic cylinder and welding torch, the fixed support plate sets up at the one side of bottom plate upper surface, and electric slide rail sets up at the other side of bottom plate upper surface, mobile support plate sets up on the mobile end of electric slide rail, a pair of support cylinder designs on the same axis, and one support cylinder is set up on the fixed support plate through the pivot rotation, the utility model a pair of coaxial two support cylinder on multiple push rods simultaneously to the pipe fitting inside wall support fixed, can be applicable to the pipe fitting of different diameters, and the applicability is strong, and the support cylinder on mobile support plate can move, thereby making pipe fitting end butt joint, automatic butt joint, and the alignment is accurate, guarantees the welding quality, and butt joint efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of welding butt clamp technology, specifically a butt clamp for welding titanium alloy straight pipe fittings. Background Technology

[0002] In the aerospace field, welding and butt welding of titanium alloy straight pipes is a common and highly demanding process. Titanium alloys are widely used due to their high strength, corrosion resistance, and lightweight properties, but their welding process is extremely sensitive to cleanliness, butt welding accuracy, and heat input control.

[0003] Currently, the industry commonly uses external fixing clamps for welding titanium alloy straight pipe fittings. These clamps typically use mechanisms such as clamps, V-blocks, or grippers to clamp and position the pipe fittings from the outside. While this method can achieve a certain degree of pipe fitting fixation, it has many inherent drawbacks in practical applications.

[0004] First, a set of external clamps can usually only be used for pipe fittings with a specific outer diameter. When it is necessary to weld pipe fittings of different diameters, the clamps must be replaced or significantly adjusted, which increases equipment costs and preparation workload and reduces production efficiency.

[0005] Secondly, in order to achieve precise alignment, operators usually need to use measuring tools to repeatedly measure and manually adjust the position of the pipe fittings before clamping, and then fix them. The process is cumbersome, time-consuming and labor-intensive, and requires a high level of technical skill and experience from the operators, making it difficult to guarantee consistent welding quality.

[0006] Finally, the clamping mechanism of the external fixture may occupy the welding operation space and interfere with the path of the welding torch, especially in space-constrained situations, increasing the difficulty of welding. Utility Model Content

[0007] To address the aforementioned shortcomings of existing technologies, this utility model provides a butt welding fixture for titanium alloy straight pipe fittings. A pair of coaxial support cylinders house adjusting motors that drive the lower ends of rotatably connected push rods to move. Under the action of rotatable limiting sleeves, the upper ends of the push rods are supported and abut against the inner wall of the pipe fitting. Multiple push rods simultaneously support and fix the inner wall of the pipe fitting, without affecting the welding torch's operation. It is applicable to pipe fittings of different diameters, exhibiting strong applicability. The support cylinders on the movable support plate can move, thereby enabling the pipe fitting ends to be butt-jointed, automating the butt welding process, ensuring precise alignment, guaranteeing welding quality, and achieving high butt welding efficiency.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a butt clamp for welding titanium alloy straight pipe fittings, comprising a base plate, a fixed support plate, an electric slide rail, a movable support plate, a pair of support cylinders, a support frame, a telescopic cylinder, and a welding torch. The fixed support plate is disposed on one side of the upper surface of the base plate, and the electric slide rail is disposed on the other side of the upper surface of the base plate. The movable support plate is disposed on the movable end of the electric slide rail. The pair of support cylinders are designed on the same axis, with one support cylinder rotatably mounted on the fixed support plate via a rotating shaft, and the other support cylinder rotatably mounted on the movable support plate via a rotating shaft. A drive motor is disposed on the side wall of the fixed support plate, and the output end of the drive motor is fixedly connected to the rotating shaft. On the facing end faces of the pair of support cylinders, one end face of the support cylinder is provided with a hexagonal prism-shaped butt joint, and the other end face of the support cylinder is provided with a butt seat. The butt seat has an opening... The device is equipped with a hexagonal groove that matches the connector, allowing the connector to be inserted into the groove. A support frame is mounted on a workbench, with a telescopic cylinder at the top and a welding torch at the bottom. The welding torch is positioned directly above the connector when it is inserted into the mating seat. Each support cylinder has two sets of annularly arranged mounting ports, with at least three ports in each set. A limiting sleeve is rotatably mounted within each mounting port via a connecting shaft. A push rod is axially slidable within the limiting sleeve. A moving block is rotatably connected to one inner end of each push rod, and a ball is positioned at one outer end of the push rod. A driving assembly is located within the support cylinder, enabling the moving block to move and thus extending the outer end of the push rod. A length adjustment assembly is also provided on the support cylinder, allowing adjustment based on the pipe length and blocking the pipe end face.

[0009] Preferably, the drive assembly includes an adjusting motor and a pair of threaded rods with opposite thread directions. The adjusting motor is fixedly installed inside the support cylinder and has two output ends that can rotate in both directions. One end of each pair of threaded rods is fixedly connected to the two output ends of the adjusting motor. A threaded hole is provided at the center of the moving block, and the threaded rods are screwed into the threaded hole.

[0010] Preferably, the length adjustment component includes a baffle, which is disposed on the support cylinder and located on the side near the rotating shaft, and the inner ring of the baffle is screwed to the outer wall of the support cylinder by internal and external threads.

[0011] Preferably, a fixing plate is fixedly installed inside the support cylinder at the end of the threaded rod away from the motor, and the end of the threaded rod away from the motor is rotatably connected to the side wall of the fixing plate.

[0012] Preferably, the mating joint has a chamfer on one side corresponding to the mating seat.

[0013] Preferably, conductive slip rings are provided between the support cylinder and the fixed support plate, and between the support cylinder and the movable plate.

[0014] Preferably, the surface of the sphere is provided with a rubber sleeve.

[0015] This utility model provides a butt clamp for welding titanium alloy straight pipe fittings, which has the following advantages: In this invention, the adjusting motors inside the two coaxial support cylinders operate, driving the lower ends of the rotatably connected push rods to move. Under the action of the rotatable limiting sleeve, the upper ends of the push rods are supported and abut against the inner wall of the pipe fitting. Multiple push rods simultaneously support and fix the inner wall of the pipe fitting, without affecting the operation of the welding torch. It can be used for pipe fittings of different diameters, has strong applicability, and the support cylinders on the movable support plate can move, thereby enabling the pipe fitting ends to be connected. This automated connection ensures accurate alignment, guarantees welding quality, and has high connection efficiency. Attached Figure Description

[0016] Figure 1 This is a front sectional view of the pipe fittings of this utility model when they are joined together; Figure 2 This is a front sectional view of the pipe fittings of this utility model before they are connected. Figure 3 This utility model Figure 2 A partial view in the image; Figure 4 This is a schematic diagram showing the position of the limiting sleeve of this utility model; Figure 5 This is a schematic diagram of the connector of this utility model; Figure 6 This is a schematic diagram of the docking seat of this utility model.

[0017] In the diagram: 1. Base plate; 2. Electric slide rail; 3. Moving support plate; 4. Fixed support plate; 5. Drive motor; 6. Support cylinder; 7. Conductive slip ring; 8. Docking seat; 9. Connecting joint; 10. Baffle; 11. Adjusting motor; 12. Threaded rod; 13. Moving block; 14. Push rod; 15. Ball; 16. Mounting port; 17. Fixed plate; 18. Limit sleeve; 19. Support frame; 20. Telescopic cylinder; 21. Welding torch; 22. Internal and external threads; 23. Rubber sleeve; 24. Hexagonal groove; 25. Chamfer; 26. Rotating shaft; 27. Connecting shaft. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1-6As shown, a butt welding fixture for titanium alloy straight pipe fittings includes a base plate 1, a fixed support plate 4, an electric slide rail 2, a movable support plate 3, a pair of support cylinders 6, a support frame 19, a telescopic cylinder 20, and a welding torch 21. The fixed support plate 4 is disposed on one side of the upper surface of the base plate 1, and the electric slide rail 2 is disposed on the other side of the upper surface of the base plate 1. The movable support plate 3 is disposed on the movable end of the electric slide rail 2. The pair of support cylinders 6 are designed on the same axis, and one support cylinder 6 is rotatably disposed on the fixed support plate 4 via a rotating shaft 26, while the other support cylinder 6 is rotatably disposed on the movable support plate 3 via a rotating shaft 26. A drive motor 5 is disposed on the side wall of the fixed support plate 4, and the output end of the drive motor 5 is fixedly connected to the rotating shaft 26. On the facing end faces of the support cylinders 6, one end face of the support cylinder 6 is provided with a hexagonal prism-shaped connector 9, and the other end face of the support cylinder 6 is provided with a mating seat 8. The mating seat 8 has a hexagonal groove 24 that matches the connector 9, and the connector 9 can be inserted into the hexagonal groove 24. The support frame 19 is set on the workbench, and a telescopic cylinder 20 is set on the top of the support frame 19. A welding torch 21 is set at the lower end of the telescopic cylinder 20. The welding torch 21 is located directly above the connector 9 and the mating seat 8 when they are inserted and mated. Each support cylinder 6 has two sets of mounting ports 16 arranged in a ring matrix, and each set of mounting ports 16 has at least three. A limit sleeve 18 is rotatably installed in each mounting port 16 through a connecting shaft 27. A push rod 14 is axially slidably disposed inside the limiting sleeve 18. A moving block 13 is rotatably connected to one inner end of each push rod 14. A ball 15 is disposed at one outer end of the push rod 14. A driving assembly is disposed inside the support cylinder 6. The driving assembly can drive the moving block 13 to move, thereby causing one outer end of the push rod 14 to extend. A length adjustment assembly is disposed on the support cylinder 6. The length adjustment assembly can be adjusted according to the length of the pipe fitting and can block the end face of the pipe fitting. The driving assembly includes an adjusting motor 11 and a pair of threaded rods 12 with opposite thread directions. The adjusting motor 11 is fixedly disposed inside the support cylinder 6. The adjusting motor 11 has two output ends and can rotate in both directions. One end of each pair of threaded rods 12 is connected to the two output ends of the adjusting motor 11. The moving block 13 has a threaded hole at its center, and the threaded rod 12 is screwed into the threaded hole. The length adjustment assembly includes a baffle 10, which is disposed on the support cylinder 6 and located on the side near the rotating shaft 26. The inner ring of the baffle 10 is screwed to the outer wall of the support cylinder 6 via internal and external threads 22. A fixing plate 17 is fixedly disposed inside the support cylinder 6 at the end of the threaded rod 12 away from the motor, and the end of the threaded rod 12 away from the motor is rotatably connected to the side wall of the fixing plate 17. A chamfer 25 is provided on one side of the mating seat 8 corresponding to the mating joint 9. Conductive slip rings 7 are respectively provided between the support cylinder 6 and the fixed support plate 4 and between the support cylinder 6 and the moving block 13. A rubber sleeve 23 is provided on the surface of the sphere 15.

[0020] Its detailed connection methods are well-known technologies in this field. The following mainly introduces the working principle and process, as follows: According to the instruction manual Figure 1-6 As can be seen, when this utility model is in operation, the electric slide rail 2 pulls the movable support plate 3 and the support cylinder 6 on the movable support plate 3 further away. According to the length of the pipe fitting to be connected, the personnel adjust the length adjustment component. When the personnel put the two pipe fittings to be connected onto the support cylinder 6 respectively, the length adjustment component can block one end of the pipe fitting, and the other end is exactly in the docking position. After the pipe fitting is put onto the support cylinder 6, the drive component works, starting the movement of the two moving blocks 13 in each support cylinder 6. Since the limiting sleeve 18 is rotatably connected to the installation port 16, the push plate can slide axially within the limiting sleeve 18. Therefore, the movement of the moving block 13 can drive the lower end of the push rod 14 to move. The movement of one end of the push rod 14 can make the ball 15 abut against the inner wall of the pipe fitting. Multiple push rods 14 are of the same length, and the balls 15 on the push rods 14 abut against the inner wall of the pipe fitting at the same time, fixing the pipe fitting. The pipe fittings on both sides are also on the same axis. At this time, the electric slide rail 2 works again, driving the movable support plate 3 and the support cylinder 6 on the movable support plate 3 to move towards the support cylinder 6 on the fixed support plate 4, thereby connecting the ends of the two pipe fittings. At this time, the butt joint 9 on the end face of the support cylinder 6 is inserted into the hexagonal groove 24 on the docking seat 8. Since the butt joint 9 is hexagonal prism-shaped, when the welding torch 21 is welding, the drive motor 5 works, which can drive the pair of support cylinders 6 to rotate simultaneously, so that the two pipe fittings can rotate and be welded at the same time. In this utility model, the drive components in the two coaxial support cylinders 6 work, respectively driving the lower end of the rotatably connected push rod 14 to move. Under the action of the rotatable limiting sleeve 18, the upper end of the push rod 14 is supported and abuts against the inner wall of the pipe fitting. Multiple push rods 14 simultaneously support and fix the inner wall of the pipe fitting, which will not affect the work of the welding torch 21. It can be used for pipe fittings of different diameters, with strong applicability. The support cylinder 6 on the movable support plate 3 can move, thereby connecting the ends of the pipe fittings. The connection is automated, the alignment is accurate, the welding quality is guaranteed, and the connection efficiency is high.

[0021] The drive assembly includes an adjusting motor 11 and a pair of threaded rods 12 with opposite thread directions. The adjusting motor 11 is fixedly mounted inside the support cylinder 6. The adjusting motor 11 has two output ends and can rotate in both directions. One end of each threaded rod 12 is fixedly connected to the two output ends of the adjusting motor 11. A threaded hole is provided in the center of the moving block 13. During operation, the two output ends of the adjusting motor 11 drive the pair of threaded rods 12 to rotate. Since the threaded rods 12 are screwed into the threaded holes of the moving block 13, and the push rod 14 cannot move in a circumferential direction, the rotation of the threaded rods 12 can drive the moving block 13 to move.

[0022] The length adjustment component includes a baffle 10, which is mounted on the support cylinder 6 and located on the side near the rotating shaft 26. The inner ring of the baffle 10 is screwed to the outer wall of the support cylinder 6 via internal and external threads 22. During operation, rotating the baffle 10 allows for axial adjustment of its position, thus accommodating pipes of different lengths.

[0023] The support cylinder 6 has a fixed plate 17 fixedly installed at the end of the threaded rod 12 away from the motor. The end of the threaded rod 12 away from the motor is rotatably connected to the side wall of the fixed plate 17, which ensures the stability of the threaded rod 12 and the moving block 13 when they move.

[0024] The connector 9 has a chamfer 25 on one side corresponding to the mating seat 8, which can be accurately inserted into the hexagonal groove 24 of the mating seat 8.

[0025] Conductive slip rings 7 are respectively installed between the support cylinder 6 and the fixed support plate 4, and between the support cylinder 6 and the moving part. An adjustment motor 11 is installed inside the support cylinder 6, which requires wiring. The use of conductive slip rings 7 can avoid wire tangling. Of course, the rotation of the support cylinder 6 is generally 360 degrees. If the wire is long enough, it will not affect the use. However, the use of conductive slip rings 7 is better.

[0026] The surface of the sphere 15 is provided with a rubber sleeve 23, which increases the friction between the sphere and the pipe. On the other hand, the elastic rubber can offset the slight errors that may exist in the design of the threaded rod 12, the length of the push rod 14, and the movement during operation.

[0027] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A butt clamp for welding titanium alloy straight pipe fittings, characterized in that, The system includes a base plate (1), a fixed support plate (4), an electric slide rail (2), a movable support plate (3), a pair of support cylinders (6), a support frame (19), a telescopic cylinder (20), and a welding torch (21). The fixed support plate (4) is located on one side of the upper surface of the base plate (1), and the electric slide rail (2) is located on the other side of the upper surface of the base plate (1). The movable support plate (3) is located on the movable end of the electric slide rail (2). The pair of support cylinders (6) are designed on the same axis, and one support cylinder (6) is rotatably mounted on the fixed support plate via a pivot (26). On plate (4), another support cylinder (6) is rotatably mounted on the movable support plate (3) via a rotating shaft (26). A drive motor (5) is provided on the side wall of the fixed support plate (4). The output end of the drive motor (5) is fixedly connected to the rotating shaft (26). On the end faces of the pair of support cylinders (6), one support cylinder (6) has a hexagonal prism-shaped connector (9), and the other support cylinder (6) has a mating seat (8). The mating seat (8) has a hexagonal groove (24) that matches the connector (9). The connector (9) can be inserted into the hexagonal slot (24). The support frame (19) is set on the workbench. A telescopic cylinder (20) is set on the top of the support frame (19). A welding torch (21) is set at the lower end of the telescopic cylinder (20). The welding torch (21) is located directly above the connector (9) and the mating seat (8) when they are inserted and mated. Each support cylinder (6) has two sets of installation ports (16) arranged in a ring matrix. Each set of installation ports (16) has at least three ports. Each installation port (16) can rotate through the connecting shaft (27). A limiting sleeve (18) is provided, and a push rod (14) is axially slidably provided inside the limiting sleeve (18). A moving block (13) is rotatably connected to one end of the inner side of each push rod (14). A ball (15) is provided at one end of the outer side of the push rod (14). A driving component is provided inside the support cylinder (6). The driving component can drive the moving block (13) to move, thereby causing one end of the push rod (14) to extend out. A length adjustment component is provided on the support cylinder (6). The length adjustment component can be adjusted according to the length of the pipe and can block the end face of the pipe.

2. The butt clamp for welding titanium alloy straight pipe fittings according to claim 1, characterized in that, The drive assembly includes an adjusting motor (11) and a pair of threaded rods (12) with opposite thread directions. The adjusting motor (11) is fixedly installed inside the support cylinder (6). The adjusting motor (11) has two output ends and can rotate in both directions. One end of the pair of threaded rods (12) is fixedly connected to the two output ends of the adjusting motor (11). The moving block (13) has a threaded hole in the center, and the threaded rods (12) are screwed into the threaded hole.

3. The butt clamp for welding titanium alloy straight pipe fittings according to claim 1, characterized in that, The length adjustment assembly includes a baffle (10), which is disposed on the support cylinder (6) and located on the side near the rotating shaft (26). The inner ring of the baffle (10) is screwed to the outer wall of the support cylinder (6) by internal and external threads (22).

4. The butt clamp for welding titanium alloy straight pipe fittings according to claim 1, characterized in that, A fixing plate (17) is fixedly installed inside the support cylinder (6) at the end of the threaded rod (12) away from the motor. The end of the threaded rod (12) away from the motor is rotatably connected to the side wall of the fixing plate (17).

5. The butt clamp for welding titanium alloy straight pipe fittings according to claim 1, characterized in that, The connector (9) has a chamfer (25) on one side corresponding to the mating seat (8).

6. The butt clamp for welding titanium alloy straight pipe fittings according to claim 1, characterized in that, Conductive slip rings (7) are respectively provided between the support cylinder (6) and the fixed support plate (4) and between the support cylinder (6) and the movable plate.

7. A butt clamp for welding titanium alloy straight pipe fittings according to claim 1, characterized in that, The surface of the sphere (15) is provided with a rubber sleeve (23).

Images