Urea tank oil pipe welding equipment

Abstract

The present invention provides a urea tank oil pipe welding device, comprising a base, a mounting seat, and a first driving assembly, wherein the bottom of the mounting seat is mounted on the base, a through hole is provided on the mounting seat, an insulating mounting ring is rotatably mounted in the through hole through a bearing, the first driving assembly drives the insulating mounting ring to drive the insulating mounting to rotate, a first annular conductor arranged coaxially is provided on the insulating mounting ring, a welding electrode is arranged along the radial direction of the insulating mounting ring, and the welding electrode is connected to the first annular conductor, a supporting assembly is provided on the base, a sleeve is fixed on the supporting assembly and the sleeve is coaxially arranged with the first annular conductor, an annular stopper is provided on the sleeve along the circumferential direction for positioning a steel pipe to be welded, a fixed electrode is provided on the sleeve on the side of the annular stopper away from the supporting assembly, and a clamping assembly for clamping the steel pipe to be welded is provided on the base located on the second end of the through hole. The present invention can effectively improve the degree of automation, welding quality and welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of urea tank manufacturing equipment, and in particular to a urea tank oil pipe welding device. Background Art

[0002] Steel pipe welding is an important step in manufacturing urea oil pipes. In the prior art, a handheld welder is often used to weld steel pipes. However, this welding method has unstable welding quality, low efficiency, and long-term handheld welding, which is labor-intensive. Summary of the invention

[0003] Based on the technical problems existing in the background technology, the present invention proposes a urea tank oil pipe welding device, which can effectively improve the degree of automation, improve welding quality and welding efficiency.

[0004] The present invention provides a urea tank oil pipe welding device, comprising a base, a mounting seat, and a first driving component;

[0005] The bottom of the mounting seat is mounted on the base, a through hole is provided on the mounting seat, an insulating mounting ring is rotatably mounted in the through hole through a bearing, a first driving assembly drives and connects the insulating mounting ring to drive the insulating mounting to rotate along its own axis, a first annular conductor arranged coaxially is provided on the insulating mounting ring, a welding electrode is arranged along the radial direction of the insulating mounting ring, and the welding electrode is connected to the first annular conductor;

[0006] A support assembly for supporting the sleeve is provided on the base located at one side of the first end of the through hole, the sleeve is fixed on the support assembly and the sleeve is coaxially arranged with the first annular conductor, an annular stopper for positioning the steel pipe to be welded is provided on the outer wall or the inner wall of the sleeve along the circumferential direction, and a fixed electrode for contacting the steel pipe to be welded is provided on the sleeve at the side of the annular stopper away from the support assembly;

[0007] A clamping assembly for clamping the steel pipe to be welded is provided on the base located at one side of the second end of the through hole.

[0008] Preferably, an annular cavity is provided in the ring wall of the insulating mounting ring, the first annular conductor is arranged in the annular cavity, an annular groove connected to the annular cavity is opened at the outer wall of the insulating mounting ring corresponding to the annular cavity, and a conductor matching the annular groove is provided on the inner wall corresponding to the through hole and the annular groove, and the conductor is in sliding contact with the first annular conductor.

[0009] Preferably, a welding power source is further included, and the conductor and the fixed electrode are electrically connected to the welding power source respectively.

[0010] Preferably, the clamping assembly includes two guide columns, an upper clamping plate, a lower clamping plate and a second driving assembly. The two guide columns are symmetrically arranged on the base, and the upper clamping plate and the lower clamping plate are arranged up and down. The two ends of the lower clamping plate are respectively fixedly connected to the two guide columns. The two ends of the upper clamping plate are respectively provided with through holes for the guide columns to pass through. The guide columns pass through the corresponding through holes and are slidably connected to the corresponding through holes. The second driving assembly drives the upper clamping plate to move the upper clamping plate closer to or away from the lower clamping plate along the guide column. The upper clamping plate and the lower clamping plate cooperate to form a clamping space for clamping the steel pipe to be welded.

[0011] Preferably, the second drive assembly includes a connecting plate and a cylinder, the two ends of the connecting plate are respectively fixedly connected to the top ends of the two guide columns, the cylinder includes a cylinder body and a piston rod, the cylinder body is mounted on the connecting plate, the piston rod extends from the bottom of the cylinder body and is fixedly connected to the top of the upper clamping plate.

[0012] Preferably, the first drive component includes a drive motor and a gear. The first end of the insulating mounting ring extends outward evenly to form an annular extension portion. The outer wall of the annular extension portion is provided with a plurality of gear teeth along the circumferential direction. The drive motor is arranged on the mounting seat. The output shaft of the drive motor is fixedly connected to the gear, and the gear is meshed with the gear teeth of the annular extension portion.

[0013] Preferably, the mounting seat, the sleeve and the base are all made of insulating materials.

[0014] Preferably, an adjustment device is also included, which includes a weld detection component for detecting the weld position, a third drive component and a controller. A guide rail parallel to the axis of the through hole is provided on the base, a slide groove matching the guide rail is provided at the bottom of the mounting seat, the slide groove is slidably connected to the slider, the third drive component drives the mounting seat to drive the mounting seat to slide along the guide rail, the weld detection component signal is connected to the controller, and the controller controls the connection to the third drive component.

[0015] Preferably, the weld detection assembly comprises a second annular conductor, a first detection probe, a second detection probe, a detection power supply and a signal detector;

[0016] The second annular conductor is arranged on the insulating mounting ring, an insulating material is arranged between the first annular conductor and the second annular conductor, the first detection probe is arranged radially inside the insulating mounting ring, and the first detection probe and the welding electrode are arranged in the same circumferential direction along the inner wall of the mounting ring;

[0017] The first end of the first detection probe is connected to the second annular conductor, the second end of the first detection probe is used for elastically extruding the steel pipe to be welded, the second annular conductor is connected to the detection power supply, the second detection probe is used to connect the steel pipe to be welded, the second detection probe is connected to the detection power supply, and the signal detector is connected in series between the second detection probe and the detection power supply.

[0018] Preferably, the first detection probe includes an insulating mounting sleeve, a detection probe, a conductive elastic connector and a detection probe head. The detection probe is connected to the second annular conductor. The insulating mounting sleeve is provided on the detection probe. One end of the elastic connector is fixedly connected to the detection probe, and the other end extends out of the insulating mounting sleeve and is fixedly connected to the detection probe head. The detection probe head can compress the elastic element and extend and retract along the length direction of the detection probe head.

[0019] Preferably, the detection probe head comprises an insulating cone probe and a needle-shaped conductor arranged at the tip of the insulating cone probe, and the needle-shaped conductor is connected to the elastic connecting piece.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) The steel pipe to be welded is fixed by a sleeve and a clamping assembly, and the welding electrode is automatically moved in a circular motion around the fixed electrode by a first driving assembly to perform circumferential welding on the steel pipe to be welded, thereby improving welding quality and welding efficiency and reducing labor intensity.

[0022] (2) The weld position is automatically detected and adjusted by the weld detection component and the third drive component, so that the welding electrode is at the weld position of the steel pipe to be welded, further improving the welding accuracy and welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention provides a front view schematic diagram of a urea tank oil pipe welding device.

[0024] Figure 2 The present invention provides a top view of a urea tank oil pipe welding device.

[0025] Figure 3 It is a schematic diagram of the structure of the mounting base in the present invention.

[0026] Figure 4 It is a schematic structural diagram of the insulating mounting ring in the present invention.

[0027] Figure 5 It is a schematic diagram of the structure of the first detection probe in the present invention. DETAILED DESCRIPTION

[0028] Reference Figure 1-Figure 3 The present invention provides a urea tank oil pipe welding device, comprising a base 1, a mounting seat 2, and a first driving assembly;

[0029] The bottom of the mounting seat 2 is mounted on the base 1, and a through hole is opened on the mounting seat 2. An insulating mounting ring 4 is rotatably mounted in the through hole through a bearing 3. The first driving component drives and connects the insulating mounting ring 4 to drive the insulating mounting to rotate along its own axis. A coaxially arranged first annular conductor 5 is provided on the insulating mounting ring 4. The welding electrode 18 is arranged along the radial direction of the insulating mounting ring 4, and the welding electrode 18 is connected to the first annular conductor 5.

[0030] A support assembly for supporting a sleeve 6 is provided on the base 1 located at one side of the first end of the through hole. The sleeve 6 is fixed on the support assembly and is coaxially arranged with the first annular conductor 5. An annular stopper 8 for positioning the steel pipe to be welded is provided on the outer wall or the inner wall of the sleeve 6 along the circumferential direction. A fixed electrode 7 for contacting the steel pipe to be welded is provided on the sleeve 6 at the side of the annular stopper 8 away from the support assembly.

[0031] A clamping assembly for clamping the steel pipe to be welded is provided on the base 1 located at one side of the second end of the through hole.

[0032] In the present invention, the steel pipe to be welded has been tightly fitted, and the steel pipe to be welded is fixed by the sleeve 6 and the clamping assembly, and the welding electrode 18 is automatically moved in a circular motion around the fixed electrode 7 by the first driving assembly to perform circumferential welding on the steel pipe to be welded, thereby improving the welding quality and welding efficiency.

[0033] Reference Figure 3 In this embodiment, an annular cavity is provided in the ring wall of the insulating mounting ring 4, and the first annular conductor 5 is arranged in the annular cavity. An annular groove connected to the annular cavity is provided at the outer wall of the insulating mounting ring 4 corresponding to the annular cavity, and a conductor 9 matching the annular groove is provided on the inner wall corresponding to the through hole and the annular groove. The conductor 9 is in sliding contact with the first annular conductor 5 so that the conductor supplies power to the welding electrode 18. Specifically, the conductor 9 is a conductive brush or a conductive sliding sheet.

[0034] In this embodiment, a welding power source is also included, and the conductor 9 and the fixed electrode 7 are electrically connected to the welding power source. A switch is provided between the welding power source and the fixed electrode 7 or the conductor 9 to control the on and off of the power supply of the welding power source.

[0035] In this embodiment, the clamping assembly includes two guide columns 10, an upper clamping plate 11, a lower clamping plate 12 and a second driving assembly. The two guide columns 10 are symmetrically arranged on the base 1. The upper clamping plate 11 and the lower clamping plate 12 are arranged up and down. The two ends of the lower clamping plate 12 are respectively fixedly connected to the two guide columns 10. The two ends of the upper clamping plate 11 are respectively provided with through holes for the guide columns 10 to pass through. The guide columns 10 pass through the corresponding through holes and are slidably connected to the corresponding through holes. The second driving assembly drives the upper clamping plate 11 to make the upper clamping plate 11 approach or move away from the lower clamping plate 12 along the guide columns 10. The upper clamping plate 11 and the lower clamping plate 12 cooperate to form a clamping space for clamping the steel pipe to be welded. The steel pipe to be welded is clamped by the cooperation of the upper clamping plate 11 and the lower clamping plate 12. The inner sides of the upper clamping plate 11 and the lower clamping plate 12 are both arc-shaped to increase the contact area with the steel pipe to be welded, evenly bear the force, increase the stability of the clamping, and avoid deformation of the steel pipe.

[0036] In this embodiment, the second driving assembly includes a connecting plate and a cylinder 13, the two ends of the connecting plate are respectively fixedly connected to the top ends of the two guide columns 10, the cylinder 13 includes a cylinder body 131 and a piston rod 132, the cylinder body (131) is installed on the connecting plate, and the piston rod 132 extends from the bottom of the cylinder body 131 and is fixedly connected to the top of the upper clamping plate 11. When the cylinder works, the piston rod 132 drives the upper clamping plate 11 to move along the guide column.

[0037] In this embodiment, the first driving component includes a driving motor 14 and a gear. The first end of the insulating mounting ring 4 extends outward evenly to form an annular extension portion. The outer wall of the annular extension portion is provided with a plurality of gear teeth along the circumferential direction. The driving motor 14 is arranged on the mounting seat 2. The output shaft of the driving motor 14 is fixedly connected to the gear. The gear is meshed with the gear teeth of the annular extension portion, so that the driving motor 14 can drive the insulating mounting ring 4 to rotate when it is working, thereby driving the welding electrode 18 to rotate for annular seam welding.

[0038] In this embodiment, the mounting seat 2, the sleeve 6 and the base 1 are all made of insulating materials to ensure the safety of the equipment.

[0039] In this embodiment, an adjustment device is also included, which includes a weld detection component for detecting the weld position, a third drive component (not shown in the figure) and a controller. A guide rail 15 parallel to the axis of the through hole is provided on the base 1, and a slide groove matching the guide rail 15 is provided at the bottom of the mounting seat 2. The slide groove is slidably connected to the slider. The third drive component drives the mounting seat 2 to drive the mounting seat 2 to slide along the guide rail 15. The weld detection component signal is connected to the controller. The controller controls the connection of the third drive component to drive the mounting seat 2 to slide along the guide rail 15 so that the welding electrode 18 is at the weld position of the steel pipe to be welded, thereby further improving the welding accuracy and welding quality.

[0040] Specifically, the third driving assembly can be a push cylinder, which works, and the piston rod of the push cylinder pushes the mounting seat to slide along the guide rail, which is a prior art. Specifically, the controller controls the connection and disconnection of the drive motor 14 and the welding power supply respectively, so as to automatically perform welding, improve the degree of automation, and further improve the welding quality and welding efficiency.

[0041] Reference Figure 4 In this embodiment, the weld detection assembly includes a second annular conductor 16, a first detection probe 17, a second detection probe, a detection power supply and a signal detector;

[0042] The second annular conductor 16 is arranged on the insulating mounting ring 4, an insulating material is arranged between the first annular conductor 5 and the second annular conductor 16, the first detection probe 17 is arranged radially inside the insulating mounting ring 4, and the first detection probe 17 and the welding electrode are arranged in the same circumferential direction along the inner wall of the insulating mounting ring 4;

[0043] The first end of the first detection probe 17 is connected to the second annular conductor 16, the second end of the first detection probe 17 is used for elastically extruding the steel pipe to be welded, the second annular conductor 16 is connected to the detection power supply, the second detection probe is used to connect the steel pipe to be welded, the second detection probe is connected to the detection power supply, and the signal detector is connected in series between the second detection probe and the detection power supply.

[0044] In this embodiment, the first detection probe 17, the second annular conductor 16, the detection power supply, the signal detector and the second detection probe are connected in series in sequence to form a detection circuit, and the second detection probe is connected to the steel pipe to be welded, wherein the signal of the signal detector is connected to the controller, so when the second end of the first detection probe 17 elastically squeezes the steel pipe to be welded, the detection circuit is in a conducting state, and the mounting seat 2 is driven to move by the third driving component. When the second end of the first detection probe 17 enters the weld, that is, when it does not contact the steel pipe, the detection circuit is in an open circuit state, and the signal detector detects the open circuit signal and can transmit the signal to the controller. The controller controls the drive motor 14 to work and controls the welding power supply to supply power, thereby driving the insulating mounting ring 4 to rotate, thereby driving the welding electrode 18 to weld. Specifically, the second end of the first detection probe 17 enters the weld.

[0045] Reference Figure 5 In this embodiment, the first detection probe 17 includes an insulating mounting sleeve 171, a detection probe 172, a conductive elastic connector 173 and a detection probe head 174. The detection probe 172 is connected to the second annular conductor 16. The insulating mounting sleeve 171 is sleeved on the detection probe 172. One end of the elastic connector 173 is fixedly connected to the detection probe 172, and the other end extends out of the insulating mounting sleeve 171 and is fixedly connected to the detection probe head 174. The detection probe head 174 can compress the elastic connector 173 and extend and retract along the length direction of the detection probe head 174.

[0046] The position of the weld is detected by the first detection probe 17. When it is not in the weld position, the detection probe head 174 squeezes the steel pipe to be welded under the elastic force of the elastic connector 173, and the entire detection circuit is in a conducting state. When the movable mounting seat 2 makes the first detection probe 17 in the weld position, the detection probe head 174 enters the weld under the elastic force of the elastic connector 173, and the entire detection circuit is in a disconnected state. The signal detector transmits the signal to the controller, and the third driving component of the controller stops working and disconnects, and controls the driving motor 14 to work, and controls the welding power supply to supply power, thereby driving the insulating mounting ring 4 to rotate, thereby driving the welding electrode 18 to weld. Specifically, the detection probe head 174 includes an insulating cone probe and a needle-shaped conductor arranged at the tip of the insulating cone probe. The needle-shaped conductor is connected to the elastic connector 173 so that the tip of the insulating cone probe enters the weld, while the insulating cone probe does not enter the weld, and the detection probe head 174 can shrink under the action of the weld, so that the tip of the insulating cone probe leaves the weld. Specifically, the natural length of the elastic connector 173 and the length of the detection probe 172 are set according to actual conditions, so that the tip of the insulating cone probe enters the weld and can shrink under the action of the weld of the steel pipe, thereby not affecting the welding. Specifically, the elastic connector 173 is a spring.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A urea tank oil pipe welding device, characterized in that: It comprises a base (1), a mounting base (2), and a first driving assembly; The bottom of the mounting seat (2) is mounted on the base (1); a through hole is formed on the mounting seat (2); an insulating mounting ring (4) is rotatably mounted in the through hole via a bearing (3); a first driving component drives and connects the insulating mounting ring (4) to drive the insulating mounting ring to rotate along its own axis; a first annular conductor (5) is coaxially arranged on the insulating mounting ring (4); a welding electrode (18) is arranged along the radial direction of the insulating mounting ring (4), and the welding electrode (18) is connected to the first annular conductor (5); A support assembly for supporting a sleeve (6) is provided on the base (1) located at one side of the first end of the through hole, the sleeve (6) is fixed on the support assembly and the sleeve (6) is coaxially arranged with the first annular conductor (5), an annular stopper (8) for positioning the steel pipe to be welded is provided on the sleeve (6) along the circumferential direction, and a fixed electrode (7) for contacting the steel pipe to be welded is provided on the sleeve (6) at the side of the annular stopper (8) away from the support assembly; A clamping assembly for clamping the steel pipe to be welded is provided on the base (1) located on one side of the second end of the through hole; The device also includes an adjustment device, which includes a weld detection component for detecting the weld position, a third drive component and a controller, a guide rail (15) parallel to the axis of the through hole is provided on the base (1), a slide groove matching the guide rail (15) is provided at the bottom of the mounting seat (2), the slide groove is slidably connected to the guide rail (15), the third drive component drives the mounting seat (2) to drive the mounting seat (2) to slide along the guide rail (15), the weld detection component signal is connected to the controller, and the controller controls the connection to the third drive component; The weld detection assembly comprises a second annular conductor (16), a first detection probe (17), a second detection probe, a detection power supply and a signal detector; The second annular conductor (16) is arranged on the insulating mounting ring (4), an insulating material is provided between the first annular conductor (5) and the second annular conductor (16), the first detection probe (17) is arranged radially inside the insulating mounting ring (4), and the first detection probe (17) and the welding electrode (18) are arranged in the same circumferential direction along the inner wall of the insulating mounting ring (4); The first end of the first detection probe (17) is connected to the second annular conductor (16), the second end of the first detection probe (17) is used to elastically squeeze the steel pipe to be welded, the second annular conductor (16) is connected to a detection power supply, the second detection probe is used to connect the steel pipe to be welded, the second detection probe is connected to the detection power supply, and the signal detector is connected in series between the second detection probe and the detection power supply; The first detection probe (17) comprises an insulating mounting sleeve (171), a detection probe (172), a conductive elastic connector (173) and a detection probe head (174); the detection probe (172) is connected to the second annular conductor (16); the insulating mounting sleeve (171) is sleeved on the detection probe (172); one end of the elastic connector (173) is fixedly connected to the detection probe (172); the other end extends out of the insulating mounting sleeve (171) and is fixedly connected to the detection probe head (174); the detection probe head (174) can compress the elastic connector (173) and expand and contract along the length direction of the detection probe head (174); The detection probe head (174) comprises an insulating cone probe and a needle-shaped conductor arranged at the tip of the insulating cone probe, and the needle-shaped conductor is connected to the elastic connecting piece (173).

2. The urea tank oil pipe welding equipment according to claim 1, characterized in that: An annular cavity is provided in the ring wall of the insulating mounting ring (4), and the first annular conductor (5) is arranged in the annular cavity. An annular through groove connected to the annular cavity is provided at a position corresponding to the annular cavity on the outer wall of the insulating mounting ring (4), and a conductor (9) matching the annular through groove is provided on the inner wall corresponding to the through hole and the annular through groove, and the conductor (9) is in sliding contact with the first annular conductor (5).

3. The urea tank oil pipe welding equipment according to claim 2, characterized in that: It also includes a welding power source, and the conductor (9) and the fixed electrode (7) are electrically connected to the welding power source respectively.

4. The urea tank oil pipe welding equipment according to claim 1, characterized in that: The clamping assembly comprises two guide columns (10), an upper clamping plate (11), a lower clamping plate (12) and a second driving assembly. The two guide columns (10) are symmetrically arranged on the base (1). The upper clamping plate (11) and the lower clamping plate (12) are arranged up and down. The two ends of the lower clamping plate (12) are respectively fixedly connected to the two guide columns (10). The two ends of the upper clamping plate (11) are respectively provided with through holes for the guide columns (10) to pass through. The guide columns (10) pass through the corresponding through holes and are slidably connected to the corresponding through holes. The second driving assembly drives the upper clamping plate (11) to move the upper clamping plate (11) closer to or away from the lower clamping plate (12) along the guide columns (10). The upper clamping plate (11) and the lower clamping plate (12) cooperate to form a clamping space for clamping the steel pipe to be welded.

5. The urea tank oil pipe welding equipment according to claim 4, characterized in that: The second driving assembly comprises a connecting plate and a cylinder (13), wherein both ends of the connecting plate are fixedly connected to the top ends of the two guide columns (10), respectively; the cylinder (13) comprises a cylinder body (131) and a piston rod (132), wherein the cylinder body (131) is mounted on the connecting plate, and the piston rod (132) extends from the bottom of the cylinder body (131) and is fixedly connected to the top of the upper clamping plate (11).

6. The urea tank oil pipe welding equipment according to claim 1, characterized in that: The first drive assembly comprises a drive motor (14) and a gear. The first end of the insulating mounting ring (4) uniformly extends outward to form an annular extension portion. The outer wall of the annular extension portion is provided with a plurality of gear teeth along the circumferential direction. The drive motor (14) is arranged on the mounting seat (2). The output shaft of the drive motor (14) is fixedly connected to the gear, and the gear is meshed with the gear teeth of the annular extension portion.

7. The urea tank oil pipe welding equipment according to claim 1, characterized in that: The mounting seat (2), the sleeve (6) and the base (1) are all made of insulating materials.

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