A water supply pipeline welding positioning device

Abstract

The present invention relates to the technical field of pipeline welding, and specifically discloses a water supply pipeline welding positioning device, including a first curved plate and a second curved plate, the first curved plate and the second curved plate are connected by a distance adjustment component, and three support components are installed on the second curved plate, the support component includes a translation rod, an adjustment rod, a fixed rod, a first connecting rod and a second connecting rod, the first connecting rod and the second connecting rod are arranged in parallel, two ends of the first connecting rod are respectively rotatably connected to the fixed rod and the translation rod, two ends of the second connecting rod are respectively rotatably connected to the fixed rod and the translation rod, both ends of the translation rod are installed with a rotating shaft, and both shafts are installed with a rotating wheel, and the two ends of the adjusting rod are respectively rotatably connected to the first curved plate and the second connecting rod. This water supply pipeline welding positioning device is convenient for centering and spacing adjustment of two water supply pipelines, so that the geometric shape of the weld is regular, and the welding quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline welding, in particular to a water supply pipeline welding positioning device. Background Art

[0002] Water supply pipelines transport water collected from water sources to various water-using areas. Water supply pipelines also have the function of regulating water pressure and planning regional water supply. Therefore, the installation and maintenance of water supply pipelines directly affect the efficiency and safety of the entire water supply system.

[0003] During the installation of water supply pipes, welding is the main method of connecting iron water supply pipes. The quality of welding directly determines the sealing and durability of the pipes. In the existing technology, water supply pipe welding often uses manual observation to adjust the alignment of the two water supply pipes. The low alignment accuracy of the two water supply pipes leads to unstable welding quality and the risk of leakage in the water supply pipes. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the existing defects and provide a water supply pipe welding positioning device, which is convenient for centering and adjusting the distance between two water supply pipes, makes the geometric shape of the weld regular, and ensures the welding quality.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a water supply pipe welding positioning device, comprising a first curved plate and a second curved plate, the first curved plate and the second curved plate being connected by a distance adjustment component, and three support components being installed on the second curved plate at equal angles around the axis of the second curved plate.

[0006] The supporting assembly includes a translation rod, an adjusting rod, a fixed rod fixed on the second curved plate, and a first connecting rod and a second connecting rod located between the fixed rod and the translation rod. The length direction of the fixed rod is parallel to the axis of the second curved plate. The first connecting rod and the second connecting rod are parallel. The two ends of the first connecting rod are respectively rotatably connected to the fixed rod and the translation rod, and the two ends of the second connecting rod are respectively rotatably connected to the fixed rod and the translation rod. Both ends of the translation rod are equipped with a rotating shaft, and both shafts are equipped with a rotating wheel. The two ends of the adjusting rod are respectively rotatably connected to the first curved plate and the second connecting rod.

[0007] Among them, the two water supply pipes are aligned: three support assemblies are put on the two water supply pipes, and the welding points of the two water supply pipes are located between the two wheels of the support assemblies. The rotation axis of the wheel and the length direction of the fixed rod are arranged perpendicularly, and the length of the distance adjustment assembly is adjusted to make the wheel rest on the water supply pipe.

[0008] Among them, the distance adjustment operation between the two water supply pipes: after the two water supply pipes are aligned, the three runners on one of the water supply pipes rotate 10.0°-80.0° around the axis, and the three runners on the other water supply pipe rotate 90° around the axis, and then the second curved plate rotates forward or reverse around the water supply pipe.

[0009] As a preferred technical solution of the present invention, the edge of one of the water supply pipe ports is detected: the water supply pipe port to be detected is located between three supporting components, and three wheels are clamped on the water supply pipe to be detected. The rotation axis of the wheel is perpendicular to the length direction of the fixed rod, and the length of the distance adjustment component is adjusted to make the wheel rest against the port of the water supply pipe to be detected.

[0010] The three wheels on the water supply pipe to be detected are all rotated 90 degrees around the rotation axis, and then the second arc plate is rotated forward or reverse around the water supply pipe.

[0011] As a preferred technical solution of the present invention, a circular plate is coaxially fixed on the rotating shaft, and a plurality of slots are provided on the side of the circular plate at equal angles around the rotating shaft corresponding to the position of the translation rod. A sliding rod is installed on the translation rod, and one end of the sliding rod is in contact with one of the slots. A support is installed on the sliding rod, and an elastic member is installed between the support and the translation rod.

[0012] As a preferred technical solution of the present invention, a support rod is fixed to the outer edge of the circular plate.

[0013] As a preferred technical solution of the present invention, both ends of one of the translation rods are detachably mounted with fixed seats, and a sliding third arc plate is mounted on both fixed seats. A gear is coaxially fixed on the rotating shaft, and a plurality of tooth grooves engaging with the gear are provided on the third arc plate, and the axis of the third arc plate coincides with the axis of the second arc plate.

[0014] As a preferred technical solution of the present invention, the distance adjustment assembly includes a threaded rod, one end of the threaded rod is connected to the second arc plate through a hinge seat, a clamping seat is fixed on the first arc plate, the clamping seat is provided with a groove or a hole for the threaded rod to pass through, and a nut is installed on the threaded rod.

[0015] As a preferred technical solution of the present invention, the curvature of the first curved plate and the second curved plate are both greater than π, and the distance between the two ends of the first curved plate and the distance between the two ends of the second curved plate are both greater than the outer diameter of the water supply pipe.

[0016] As a preferred technical solution of the present invention, the distance between the two rotating wheels of the support assembly is 5.0-25.0 cm.

[0017] As a preferred technical solution of the present invention, a fixed plate is fixed on the first curved plate, the second curved plate is fixedly connected to one end of the guide rod, the other end of the guide rod passes through the fixed plate and extends outside the fixed plate, and the guide rod and the distance adjustment assembly are arranged in parallel.

[0018] As a preferred technical solution of the present invention, the middle portion of the translation rod is bent toward the fixed rod.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The water supply pipe welding positioning equipment of the present invention, on the one hand, is convenient for detecting the deformation of the end of the water supply pipe, which is convenient for the staff to trim the deformed part of the end of the water supply pipe before welding, avoiding the loose welding points after welding due to the deformation of the pipe end, reducing the workload of welding rework, and ensuring the welding quality of the two water supply pipes; on the other hand, it is convenient to operate the centering and spacing adjustment of the two water supply pipes, so that the geometric shape of the weld is regular, ensuring the welding quality, and avoiding defects such as cracks, pores, and slag inclusions in the weld.

[0021] 2. In the water supply pipe welding positioning equipment of the example of the present invention, the rotation axis of the wheel is arranged perpendicularly to the length direction of the fixed rod. The staff adjusts the length of the distance adjustment assembly so that the first arc plate pushes the translation rod away from the fixed rod through the adjusting rod and the second connecting rod, so that the wheel is against the water supply pipe. At this time, the virtual circle where the three wheels on the water supply pipe are located is perpendicular to the axis of the water supply pipe, thereby realizing the centering of the two water supply pipes, and the centering operation of the two water supply pipes is convenient.

[0022] 3. The water supply pipe welding positioning equipment of the example of the present invention rotates one of the rotating shafts, and the rotating wheel and the circular plate on the rotating shaft rotate synchronously with the rotating shaft. When one end of the sliding rod abuts against the other slot, the rotation angle of the rotating shaft is fixed, so that the angle between the rotation axis of the rotating wheel and the length direction of the fixed rod is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the centering operation of two water supply pipes according to the present invention;

[0025] Figure 3 This is a schematic diagram of the operation of adjusting the distance between two water supply pipes according to the present invention;

[0026] Figure 4 It is a schematic structural diagram of the support assembly of the present invention;

[0027] Figure 5 for Figure 4 A magnified schematic diagram of the structure at A;

[0028] Figure 6 This is a schematic diagram of the evacuation operation from two water supply pipes of the present invention;

[0029] Figure 7 This is a schematic diagram of the edge detection operation of one of the water supply pipe ports according to the present invention;

[0030] Figure 8 This is a schematic structural diagram of another embodiment of the present invention;

[0031] Figure 9 for Figure 8 Another perspective structural diagram.

[0032] In the figure: 1 distance adjustment assembly, 2 first curved plate, 3 second curved plate, 4 guide rod, 5 support assembly, 51 first connecting rod, 52 fixed rod, 53 translation rod, 54 second connecting rod, 55 adjustment rod, 56 rotating wheel, 57 rotating shaft, 58 circular plate, 59 support rod, 6 slot, 7 elastic member, 8 sliding rod, 9 support, 10 fixed seat, 11 third curved plate. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Example

[0034] See also Figure 1-7 This embodiment discloses a water supply pipe welding positioning device, including a first curved plate 2 and a second curved plate 3, the first curved plate 2 and the second curved plate 3 are connected by a distance adjustment component 1, and three support components 5 are installed on the second curved plate 3 at equal angles around the axis of the second curved plate 3.

[0035] The supporting assembly 5 includes a translation rod 53, an adjusting rod 55, a fixed rod 52 fixed on the second curved plate 3, and a first connecting rod 51 and a second connecting rod 54 located between the fixed rod 52 and the translation rod 53. The length direction of the fixed rod 52 is parallel to the axis of the second curved plate 3, the first connecting rod 51 and the second connecting rod 54 are parallel, and the two ends of the first connecting rod 51 are respectively connected to the fixed rod 52 and the translation rod 53 through a hinge seat or a hinge, and the two ends of the second connecting rod 54 are respectively connected to the fixed rod 52 and the translation rod 53 through a hinge seat or a hinge. The two ends of the translation rod 53 are both equipped with a rotating shaft 57 through a bearing or a rotating pin sleeve, and a rotating wheel 56 is installed on the two rotating shafts 57. The rotation axis of the wheel 56 is perpendicular to the length direction of the rotating shaft 57, and the two ends of the adjusting rod 55 are respectively connected to the first curved plate 2 and the second connecting rod 54 through a hinge seat or a hinge.

[0036] The virtual line connecting the two rotating wheels 56 of the supporting assembly 5 is parallel to the length direction of the fixing rod 52 .

[0037] Preferably, the distance adjustment component 1 is a telescopic rod or a hydraulic cylinder.

[0038] Furthermore, the distance between the two rotating wheels 56 of the supporting assembly 5 is 5.0-25.0 cm.

[0039] Furthermore, the radians of the first curved plate 2 and the second curved plate 3 are both greater than π, and the distance between the two ends of the first curved plate 2 and the distance between the two ends of the second curved plate 3 are both greater than the outer diameter of the water supply pipe.

[0040] The working process and principle of this embodiment are:

[0041] To inspect the edge of one of the water supply pipe ports: the staff makes the port of the water supply pipe to be inspected located between the three support components 5, and clamps three runners 56 on the water supply pipe to be inspected. The staff rotates the runner 56 so that the axis of rotation of the runner 56 is perpendicular to the length direction of the fixed rod 52. The staff adjusts the length of the distance adjustment component 1 so that the runner 56 rests on the port of the water supply pipe to be inspected. At this time, the virtual circle where the three runners 56 are located on the water supply pipe is perpendicular to the axis of the water supply pipe, as shown in FIG. Figure 7 As shown, the staff rotates the three wheels 56 on the water supply pipe to be inspected 90 degrees around the rotating shaft 57, and pushes the second arc plate 3 to rotate forward or reverse around the water supply pipe.

[0042] During the inspection of the edge of the water supply pipe port, when the water supply pipe port is concavely deformed, the force required by the staff to push the second curved plate 3 to rotate around the water supply pipe becomes smaller; when the water supply pipe port is convexly deformed, the force required by the staff to push the second curved plate 3 to rotate around the water supply pipe becomes larger; this water supply pipe welding positioning equipment is convenient for deformation detection of the water supply pipe end, which is convenient for the staff to trim the deformed part of the water supply pipe end before welding, avoiding loose welding points after welding due to deformation of the pipe end, reducing the workload of welding rework, and ensuring the welding quality of the two water supply pipes.

[0043] Two water supply pipes alignment operation: Initially, the fixed rod 52 and the translation rod 53 of the support assembly 5 are close to each other, and then the staff moves the water supply pipe welding positioning device so that the three support assemblies 5 are sleeved on the two water supply pipes. The staff makes the welding part of the two water supply pipes located between the two wheels 56 of the support assembly 5, and the staff rotates the wheel 56 so that the rotation axis of the wheel 56 and the length direction of the fixed rod 52 are perpendicular to each other. Figure 2 As shown, the staff adjusts the length of the distance adjustment component 1 so that the first curved plate 2 pushes the translation rod 53 away from the fixed rod 52 through the adjusting rod 55 and the second connecting rod 54, so that the wheel 56 is against the water supply pipe. At this time, the virtual circle where the three wheels 56 on the water supply pipe are located is perpendicular to the axis of the water supply pipe, thereby realizing the centering of the two water supply pipes.

[0044] Adjustment of the distance between two water supply pipes: After the two water supply pipes are aligned, Figure 3 As shown, the staff rotates the three wheels 56 on one of the water supply pipes around the rotating shaft 57 by 10.0°-80.0°, and the three wheels 56 on the other water supply pipe are rotated by 90° around the rotating shaft 57. Then the staff rotates the second curved plate 3 forward or reverse around the water supply pipe to adjust the distance between the two water supply pipes while ensuring that the two water supply pipes are aligned.

[0045] The staff adjusts the length of the distance adjustment assembly 1 so that the first curved plate 2 drives the translation rod 53 close to the fixed rod 52 through the adjustment rod 55 and the second connecting rod 54, so that the rotating wheel 56 leaves the water supply pipe, and then the staff removes the water supply pipe welding positioning device from the water supply pipe.

[0046] The water supply pipe welding positioning equipment is easy to operate for centering and adjusting the spacing between two water supply pipes, making the geometric shape of the weld regular, ensuring the welding quality, and avoiding defects such as cracks, pores, and slag inclusions in the weld.

[0047] Example 2: Figure 1-4As shown, this embodiment discloses a water supply pipe welding positioning device, whose structure is roughly the same as that of embodiment one, except that the middle part of the translation rod 53 of this embodiment is bent toward the fixed rod 52, reducing the obstruction of the translation rod 53 on the welding positions of the two water supply pipes.

[0048] Example 3: Figure 4 、 5 As shown, this embodiment discloses a water supply pipe welding positioning device, whose structure is roughly the same as that of the first embodiment, except that, in this embodiment, a circular plate 58 is coaxially fixed on the rotating shaft 57, and a plurality of slots 6 are provided on the side of the circular plate 58 at equal angles around the rotating shaft 57 corresponding to the position of the translation rod 53. A sliding rod 8 is installed on the translation rod 53, and one end of the sliding rod 8 abuts against one of the slots 6. A support 9 is installed on the sliding rod 8, and an elastic member 7 is installed between the support 9 and the translation rod 53. The elastic member 7 is a spring or an elastic rod, and the elastic member 7 applies a force to the sliding rod 8 toward the circular plate 58.

[0049] Preferably, the sliding rod 8 is arranged in an arc shape at one end close to the circular plate 58 , and the diameter of the sliding rod 8 is larger than the diameter of the slot 6 .

[0050] The working process and principle of this embodiment are:

[0051] The staff rotates one of the rotating shafts 57, and the rotating wheel 56 and the circular plate 58 on the rotating shaft 57 rotate synchronously with the rotating shaft 57. When one end of the sliding rod 8 abuts against the other slot 6, the rotation angle of the rotating shaft 57 is fixed, so that the angle between the rotation axis of the rotating wheel 56 and the length direction of the fixed rod 52 is stable.

[0052] Example 4: Figure 4 、 5 As shown, this embodiment discloses a water supply pipe welding positioning device, whose structure is roughly the same as that of the third embodiment, except that a support rod 59 is fixed to the outer edge of the circular plate 58 of this embodiment, and the support rod 59 facilitates the staff to rotate the circular plate 58.

[0053] Example 5: Figure 8 、 9 As shown, this embodiment discloses a water supply pipe welding positioning device, the structure of which is roughly the same as that of the first embodiment, except that, in this embodiment, both ends of one of the translation rods 53 are mounted with a fixed seat 10 by bolts or snaps, and a sliding third arc plate 11 is mounted on both fixed seats 10, a gear is coaxially fixed on the rotating shaft 57, and a plurality of tooth grooves that mesh with the gear are provided on the third arc plate 11, and the axis of the third arc plate 11 coincides with the axis of the second arc plate 3.

[0054] The staff pushes the third curved plate 11 to rotate around the water supply pipe. The third curved plate 11 drives the three wheels 56 on the water supply pipe to rotate synchronously through gears, making it easy to adjust the angle between the rotation axis of the three wheels 56 on the water supply pipe and the length direction of the fixed rod 52.

[0055] Before the water supply pipe welding positioning device is removed from the water supply pipe, the fixing seat 10 is removed from the end of the translation rod 53 .

[0056] Furthermore, a number of slots 6 are provided on the side of the gear at equal angles around the rotating shaft 57 at positions corresponding to the positions of the translation rod 53. A sliding rod 8 is installed on the translation rod 53, and one end of the sliding rod 8 is in contact with one of the slots 6. A support 9 is installed on the sliding rod 8, and an elastic member 7 is installed between the support 9 and the translation rod 53. The elastic member 7 is a spring or an elastic rod. The elastic member 7 applies a force to the sliding rod 8 toward the gear, so that the angle between the rotation axis of the rotating wheel 56 and the length direction of the fixed rod 52 is stable.

[0057] Furthermore, the third curved plate 11 includes no less than two spliced curved plates, and the ends of two adjacent spliced curved plates are detachably connected.

[0058] Example 6: Figure 1-3 As shown, this embodiment discloses a water supply pipe welding positioning device, whose structure is roughly the same as that of the first embodiment, except that the distance adjustment component 1 of this embodiment includes a threaded rod, one end of the threaded rod and the second arc plate 3 are connected by a hinge seat or hinge, and a clamping seat is fixed on the first arc plate 2, and the clamping seat is provided with a groove or a hole for the threaded rod to pass through, and a nut is installed on the threaded rod.

[0059] The working process and principle of this embodiment are:

[0060] The staff makes the threaded rod pass through the groove or perforation on the clamping seat, and the staff rotates the nut on the threaded rod so that the nut is pressed against the clamping seat. The staff continues to rotate the nut, and the first curved plate 2 pushes the translation rod 53 away from the fixed rod 52 through the adjusting rod 55 and the second connecting rod 54, so that the rotating wheel 56 is against the water supply pipe. This water supply pipe welding positioning equipment is easy to install.

[0061] Example 7: Figure 1-3 As shown, this embodiment discloses a water supply pipe welding positioning device, whose structure is roughly the same as that of Example 1, except that, in this embodiment, a fixed plate is fixed on the first curved plate 2, the second curved plate 3 and one end of the guide rod 4 are fixedly connected, and the other end of the guide rod 4 passes through the fixed plate and extends outside the fixed plate. The guide rod 4 and the distance adjustment component 1 are arranged in parallel, and the guide rod 4 keeps the axis of the first curved plate 2 and the axis of the second curved plate 3 coincident, thereby increasing the reliability of this water supply pipe welding positioning device.

[0062] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A water supply pipe welding positioning device, characterized by: The invention comprises a first curved plate (2) and a second curved plate (3), wherein the first curved plate (2) and the second curved plate (3) are connected via a distance adjustment component (1), and three support components (5) are mounted on the second curved plate (3) at equal angles around the axis of the second curved plate (3); The support assembly (5) includes a translation rod (53), an adjustment rod (55), a fixed rod (52) fixed on the second arc-shaped plate (3), and a first connecting rod (51) and a second connecting rod (54) located between the fixed rod (52) and the translation rod (53). The length direction of the fixed rod (52) is parallel to the axis of the second arc-shaped plate (3). The first connecting rod (51) and the second connecting rod (54) are parallel. The two ends of the first connecting rod (51) are respectively rotatably connected to the fixed rod (52) and the translation rod (53). The two ends of the second connecting rod (54) are respectively rotatably connected to the fixed rod (52) and the translation rod (53). Both ends of the translation rod (53) are equipped with a rotating shaft (57). Both rotating shafts (57) are equipped with a rotating wheel (56). The two ends of the adjustment rod (55) are respectively rotatably connected to the first arc-shaped plate (2) and the second connecting rod (54). The two water supply pipes are aligned as follows: three support assemblies (5) are placed on the two water supply pipes, and the welded portions of the two water supply pipes are positioned between the two runners (56) of the support assemblies (5), the rotation axis of the runner (56) and the length direction of the fixing rod (52) are arranged perpendicularly, and the length of the distance adjustment assembly (1) is adjusted so that the runner (56) rests against the water supply pipes; The distance adjustment operation between the two water supply pipes is as follows: after the two water supply pipes are aligned, the three runners (56) on one of the water supply pipes are rotated 10.0°-80.0° around the rotation axis (57), and the three runners (56) on the other water supply pipe are rotated 90° around the rotation axis (57), and then the second curved plate (3) is rotated forward or reversely around the water supply pipe; A circular plate (58) is coaxially fixed to the rotating shaft (57), and a plurality of slots (6) are provided on the side surface of the circular plate (58) at equal angles around the rotating shaft (57) at positions corresponding to the positions of the translation rod (53). A sliding rod (8) is mounted on the translation rod (53), and one end of the sliding rod (8) abuts against one of the slots (6). A support (9) is mounted on the sliding rod (8), and an elastic member (7) is mounted between the support (9) and the translation rod (53); A fixing seat (10) is detachably mounted on both ends of one of the translation rods (53), and a sliding third arc plate (11) is mounted on both fixing seats (10). A gear is coaxially fixed on the rotating shaft (57), and a plurality of tooth grooves meshing with the gear are formed on the third arc plate (11), and the axis of the third arc plate (11) coincides with the axis of the second arc plate (3).

2. The water supply pipe welding positioning device according to claim 1, characterized in that: Detecting the edge of one of the water supply pipe ports: the water supply pipe port to be detected is located between the three support assemblies (5), three runners (56) are clamped on the water supply pipe to be detected, the rotation axis of the runner (56) is perpendicular to the length direction of the fixed rod (52), and the length of the distance adjustment assembly (1) is adjusted so that the runner (56) is against the port of the water supply pipe to be detected; The three rotating wheels (56) on the water supply pipe to be tested are all rotated 90 degrees around the rotating shaft (57), and then the second arc plate (3) is rotated forward or reverse around the water supply pipe.

3. The water supply pipe welding positioning device according to claim 1, characterized in that: A support rod (59) is fixed to the outer edge of the circular plate (58).

4. The water supply pipe welding positioning device according to claim 1, characterized in that: The distance adjustment assembly (1) comprises a threaded rod, one end of the threaded rod is connected to the second arc plate (3) via a hinge seat, a clamping seat is fixed on the first arc plate (2), a slot or a hole is provided on the clamping seat for the threaded rod to pass through, and a nut is installed on the threaded rod.

5. The water supply pipe welding positioning device according to claim 1, characterized in that: The radians of the first curved plate (2) and the second curved plate (3) are both greater than π, and the distance between the two ends of the first curved plate (2) and the distance between the two ends of the second curved plate (3) are both greater than the outer diameter of the water supply pipe.

6. The water supply pipe welding positioning device according to claim 1, characterized in that: The distance between the two rotating wheels (56) of the support assembly (5) is 5.0-25.0 cm.

7. The water supply pipe welding positioning device according to claim 1, characterized in that: A fixed plate is fixed on the first curved plate (2), the second curved plate (3) is fixedly connected to one end of a guide rod (4), the other end of the guide rod (4) passes through the fixed plate and extends outside the fixed plate, and the guide rod (4) and the distance adjustment assembly (1) are arranged in parallel.

8. The water supply pipe welding positioning device according to claim 1, characterized in that: The middle portion of the translation rod (53) is bent toward the fixed rod (52).

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