Wear-resistant pipe flange welding equipment

Abstract

The present application relates to the field of welding, and specifically discloses a kind of wear-resistant pipeline flange welding equipment, including processing plate, the processing plate is provided with support plate, the support plate is provided with rotating assembly, the output of the rotating assembly is provided with clamping assembly for clamping flange, the rotating assembly is provided with support frame, the support frame is provided with support assembly, the support assembly is provided with adjusting assembly.The present application can realize the circumferential positioning of pipeline, the axial adjustment of pipeline and flange and the circumferential positioning of flange multiple functions, thereby effectively reducing the axial and circumferential gap between pipeline and flange, realizing the precise alignment effect of pipeline and flange, avoiding welding misalignment eccentricity and other problems, improving the sealing property of pipeline connection, improving the welding strength, avoiding the phenomenon of pipeline leakage, improving the welding effect and welding efficiency, improving the quality of welding, conducive to the subsequent operation of pipeline system.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a wear-resistant pipe flange welding device. Background Technology

[0002] Wear-resistant pipe flanges are important components used to connect wear-resistant pipes. They are widely used in industrial fields such as mining, power, metallurgy, chemical, and petroleum where there is severe wear and corrosion. The function of flanges is to safely, reliably, and detachably connect pipeline systems. They are an indispensable basic component for fluid transportation in modern industry. When installing flanges on pipelines, welding is generally required. The welding methods are mainly to insert the pipe into the inner hole of the flange and then perform fillet welding on the outside of the flange, or to align the flange neck with the end of the pipe and then perform full circumferential butt welding.

[0003] In the process of welding flanges to pipelines, the pipeline and flange need to be aligned before welding. However, due to the lack of effective alignment devices, it is difficult to effectively position the pipeline and flange. Precise alignment of the pipeline and flange in both the axial and circumferential directions is difficult, resulting in uneven gaps between them. This can easily lead to misalignment, eccentricity, or angular deviations after welding, affecting not only the sealing performance of the pipeline connection but also insufficient weld strength, and even causing pipeline system failure and leakage. This reduces welding efficiency and effect, impacts welding quality, and is detrimental to subsequent operational safety. For example, existing patent CN117182250A discloses a pipeline flange welding device that solves the problem of requiring workers to manually rotate the welding head around the flange and pipeline welding area. This device is more convenient to use and facilitates subsequent connections between flanges and other pipelines. Furthermore, the assembly and positioning of the flange and pipeline are accurate, ensuring the perpendicularity of the flange during welding and guaranteeing welding quality. This solution achieves the desired welding effect for the flange, but it still cannot achieve precise alignment of the pipeline and flange.

[0004] Therefore, how to provide a wear-resistant pipe flange welding equipment is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a wear-resistant pipe flange welding device. This device includes a processing plate, a support plate, a rotating assembly, and a clamping assembly for clamping the flange at the output end of the rotating assembly. A support frame is mounted on the rotating assembly, a support assembly is mounted on the support frame, an adjusting assembly is mounted on the support assembly, an inner support assembly for positioning the pipe is positioned between the support assembly and the adjusting assembly, a toggle assembly is mounted on the support assembly, and a spreading assembly for positioning the flange is positioned between the toggle assembly and the support assembly. A locking assembly is positioned between the support frame and the support assembly. When circumferentially positioning the pipe, the adjusting assembly controls the inner support assembly to open and contact the pipe, achieving circumferential positioning. The locking assembly controls the support assembly, the adjusting assembly, and the inner support assembly to retract, forcing the pipe closer to the flange, achieving axial positioning of the pipe and flange. When circumferentially positioning the flange, the toggle assembly controls the spreading assembly to open, achieving circumferential positioning of the flange.

[0006] Preferably, the rotating assembly includes a rotary motor mounted on the processing plate, a rotating ring disk is connected to the support plate by a bearing, the output shaft of the rotary motor is connected to a drive gear, and a driven gear that meshes with the drive gear is fixedly sleeved on the outer ring of the rotating ring disk.

[0007] Preferably, the clamping assembly includes a hydraulic push rod mounted on the rotating ring disk, and the output end of the hydraulic push rod is provided with a clamping block, and the clamping block is provided with a clamping step.

[0008] Preferably, the support assembly includes a sliding tube slidably disposed on the support frame, the sliding tube passing through the support frame, and an installation ring provided at the end of the sliding tube.

[0009] Preferably, the adjusting assembly includes an adjusting rod connected to the inside of the sliding tube by a bearing, an adjusting threaded rod is provided on the adjusting rod, an adjusting block is threadedly connected to the adjusting threaded rod, and the adjusting threaded rod is threaded through the adjusting block.

[0010] Preferably, the inner support assembly includes an inner support rod one hinged to the adjusting block, an inner support plate hinged to the inner support rod one, and an inner support rod two symmetrical to the inner support rod one hinged to the inner support plate, the inner support rod two being hinged to the mounting ring.

[0011] Preferably, the actuating assembly includes an actuating tube connected to the outer ring of the sliding tube, and an actuating ring is bearing-connected to the actuating tube.

[0012] Preferably, the outer ring of the sliding tube has a threaded structure, and the connection between the sliding tube and the actuating tube is a threaded connection.

[0013] Preferably, the spreading assembly includes a spreading rod one hinged to the actuating ring, a spreading plate hinged to the spreading rod one, and a spreading rod two symmetrical to the spreading rod one hinged to the spreading plate, the spreading rod two being hinged to the mounting ring.

[0014] Preferably, the locking assembly includes a connecting plate disposed on the sliding tube, and a locking threaded rod is bearing-connected to the connecting plate, the locking threaded rod being threaded through the support frame.

[0015] The beneficial effects of this invention are as follows:

[0016] In this invention, when welding a flange to a pipe, the flange is placed on a clamping assembly to align the pipe and flange. The flange is positioned outside the spreading assembly, and the pipe is positioned outside the inner support assembly. To achieve precise axial and circumferential alignment during the pipe-flange welding process, the adjusting assembly is first rotated. Since the locking assembly engages with the supporting assembly, the adjusting assembly adjusts the inner support assembly, causing it to open and contact the inner support pipe, making the pipe and adjusting assembly coaxial, thus achieving circumferential positioning of the pipe. At this point, the pipe and flange are not aligned, and the gap between them needs to be eliminated. Rotating the locking assembly causes it to retract, pulling back the supporting assembly, the actuating assembly, the spreading assembly, the adjusting assembly, and the inner support assembly. Because the inner support assembly contacts the pipe, it forces the pipe to retract, resulting in a tight connection between the pipe and flange, achieving axial positioning and reducing the axial gap between them. Further adjustment of the pipe-flange axis is then needed, i.e., adjusting the circumferential positioning of the flange. Rotating the actuating assembly causes it to move on the supporting assembly... The movement causes the actuating component to open the expanding component, which then contacts the inner flange. Since the supporting component, actuating component, and adjusting component are coaxial, when the actuating component cannot be rotated, the pipe and flange are forced to be coaxial, achieving circumferential positioning of the flange, reducing the circumferential gap between the pipe and flange, and completing precise alignment of the pipe and flange. During welding, the clamping component clamps the flange, and the rotating component is activated, forcing the rotating component to drive the pipe and flange to rotate synchronously. The welding equipment then performs circumferential welding at the gap between the pipe and flange. In summary, this wear-resistant pipe flange welding equipment can achieve multiple functions, including circumferential positioning of the pipe, axial adjustment of the pipe and flange, and circumferential positioning of the flange. This effectively reduces the axial and circumferential gaps between the pipe and flange, achieving precise alignment, avoiding welding misalignment and eccentricity, improving pipe connection sealing, increasing welding strength, preventing pipe leakage, improving welding effect and efficiency, and enhancing welding quality, thus benefiting the subsequent operation of the pipeline system. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural entity diagram of the present invention from another perspective;

[0020] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 Exploded view;

[0022] Figure 5 This is a structural entity diagram of the rotating component of the present invention;

[0023] Figure 6 This is a partial structural diagram of the present invention;

[0024] Figure 7 For the present invention Figure 6 Side view;

[0025] Figure 8 This is a diagram showing the connection relationship between the adjustment component and the inner support component of the present invention.

[0026] Figure 9 This is a diagram showing the connection relationship between the actuating component and the spreading component of the present invention.

[0027] In the diagram: 1. Processing plate; 2. Support plate; 3. Rotating assembly; 301. Rotary motor; 302. Rotating ring disk; 303. Driving gear; 304. Driven gear; 4. Clamping assembly; 401. Hydraulic push rod; 402. Clamping block; 403. Clamping step; 5. Support frame; 6. Support assembly; 601. Sliding tube; 602. Mounting ring; 7. Adjusting assembly; 701. Adjusting rod; 702. Adjusting threaded rod; 703. Adjusting block; 8. Inner support assembly; 801. Inner support rod one; 802. Inner support plate; 803. Inner support rod two; 9. Actuating assembly; 901. Actuating tube; 902. Actuating ring; 10. Spreading assembly; 1001. Spreading rod one; 1002. Spreading plate; 1003. Spreading rod two; 11. Locking assembly; 1101. Connecting plate; 1102. Locking threaded rod. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0029] Example 1:

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, a wear-resistant pipe flange welding device of the present invention includes a processing plate 1, a support plate 2 fixed on the processing plate 1, a rotating assembly 3 on the support plate 2, the rotating assembly 3 cooperating with the welding device to achieve circumferential welding, a clamping assembly 4 for clamping the flange at the output end of the rotating assembly 3, the clamping assembly 4 clamping the flange, a support frame 5 on the rotating assembly 3, the support frame 5 rotating with the rotating assembly 3, a support assembly 6 on the support frame 5 providing support, an adjusting assembly 7 on the support assembly 6 for adjusting, and an inner support assembly 8 for positioning the pipe between the support assembly 6 and the adjusting assembly 7, the inner support assembly 8 abutting against the pipe to achieve pipe positioning. To improve the clamping effect of the pipeline, the support assembly 6 is equipped with a toggle assembly 9 for adjustment. Between the toggle assembly 9 and the support assembly 6, there is a spreading assembly 10 for positioning the flange. The spreading assembly 10 abuts against the flange. Between the support frame 5 and the support assembly 6, there is a locking assembly 11, which has both locking and adjustment functions. Specifically, when circumferentially positioning the pipeline, the adjustment assembly 7 controls the inner support assembly 8 to open and abut against the pipeline, achieving circumferential positioning. The locking assembly 11 controls the support assembly 6, adjustment assembly 7, and inner support assembly 8 to retract, forcing the pipeline closer to the flange, achieving axial positioning of the pipeline and flange. When circumferentially positioning the flange, the toggle assembly 9 controls the spreading assembly 10 to open, achieving circumferential positioning of the flange.

[0031] Working principle: When welding the flange to the pipe, the flange is placed on the clamping assembly 4, aligning the pipe with the flange. The flange is located outside the spreading assembly 10, and the pipe is located outside the inner support assembly 8. To achieve precise axial and circumferential alignment during the welding process, the adjusting assembly 7 is first rotated. Because the locking assembly 11 engages with the supporting assembly 6, the adjusting assembly 7 adjusts the inner support assembly 8, causing it to open and contact the inner support pipe, making the pipe and the adjusting assembly 7 coaxial, thus achieving circumferential positioning of the pipe. At this time, the pipe... The pipe and flange are not aligned, requiring the elimination of the gap between them. Rotating the locking assembly 11 causes it to retract, pulling back the support assembly 6, the actuating assembly 9, the spreading assembly 10, the adjusting assembly 7, and the inner support assembly 8. Because the inner support assembly 8 contacts the pipe, it forces the pipe back, resulting in a tight connection between the pipe and flange, achieving axial positioning and reducing the axial gap. At this point, further adjustment of the pipe and flange's axis is needed, i.e., adjusting the flange's circumferential positioning. Rotating the actuating assembly 9... Displacement occurs on the support component 6, causing the actuating component 9 to open the spreading component 10, which then contacts the inner support flange. Since the support component 6, actuating component 9, and adjusting component 7 are coaxial, when the actuating component 9 cannot be rotated, the pipe and flange are forced to be coaxial, achieving circumferential positioning of the flange, reducing the circumferential gap between the pipe and flange, and completing precise alignment of the pipe and flange. During welding, the clamping component 4 clamps the flange, and the rotating component 3 is activated, forcing the rotating component 3 to drive the pipe and flange to rotate synchronously. The welding equipment is then used to perform circumferential welding at the gap between the pipe and flange. In summary, the wear-resistant pipe flange welding equipment of this application can achieve multiple functions such as circumferential positioning of the pipe, axial adjustment of the pipe and flange, and circumferential positioning of the flange, thereby effectively reducing the axial and circumferential gaps between the pipe and flange, achieving precise alignment of the pipe and flange, avoiding problems such as welding misalignment and eccentricity, improving the sealing performance of the pipe connection, increasing the welding strength, preventing pipe leakage, improving the welding effect and efficiency, improving the welding quality, and benefiting the subsequent operation of the pipeline system.

[0032] Example 2:

[0033] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the wear-resistant pipe flange welding equipment of the present invention includes a rotating assembly 3 comprising a rotating motor 301 mounted on a processing plate 1. The rotating motor 301 is a prior art technology. A rotating ring disk 302 is connected to a bearing on a support plate 2. The rotating ring disk 302 has a hole in the middle. The output shaft of the rotating motor 301 is connected to a driving gear 303. The outer ring of the rotating ring disk 302 is fixedly fitted with a driven gear 304 that meshes with the driving gear 303. The driving gear 303 and the driven gear 304 are designed according to the diameter requirements.

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the wear-resistant pipe flange welding equipment of the present invention includes a clamping assembly 4 comprising a hydraulic push rod 401 mounted on a rotating ring disk 302. The hydraulic push rod 401 is a prior art technology. A clamping block 402 is provided at the output end of the hydraulic push rod 401. The clamping block 402 is fixedly connected to the output end of the hydraulic push rod 401. A clamping step 403 is provided on the clamping block 402. The design of the clamping step 403 can better clamp the flange.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the wear-resistant pipe flange welding equipment of the present invention includes a support assembly 6 comprising a sliding pipe 601 slidably disposed on a support frame 5, the sliding pipe 601 passing through the support frame 5, and an installation ring 602 provided at the end of the sliding pipe 601, the installation ring 602 being fixedly connected to the sliding pipe 601.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the wear-resistant pipe flange welding equipment of the present invention includes an adjusting component 7, which is connected to the sliding pipe 601 by a bearing. An adjusting threaded rod 702 is provided on the adjusting rod 701. The adjusting rod 701 and the adjusting threaded rod 702 are designed as an integral part, with one end having a threaded structure. An adjusting block 703 is threadedly connected to the adjusting threaded rod 702, and the thread of the adjusting threaded rod 702 passes through the adjusting block 703.

[0037] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the wear-resistant pipe flange welding equipment of the present invention includes an inner support assembly 8 comprising an inner support rod 801 hinged to an adjusting block 703, an inner support plate 802 hinged to the inner support rod 801, and an inner support rod 803 hinged to the inner support plate 802, which is symmetrical to the inner support rod 801. The inner support rod 803 is hinged to an mounting ring 602. The inner support rod 801 and the inner support rod 803 are symmetrically designed, and the inner support rod 801 and the inner support rod 803 are angled to the inner support plate 802.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the wear-resistant pipe flange welding equipment of the present invention includes an actuating assembly 9 comprising an actuating tube 901 connected to the outer ring of a sliding tube 601. The actuating tube 901 is designed along the length direction of the sliding tube 601. An actuating ring 902 is connected to the actuating tube 901 by a bearing. The actuating ring 902 is located at the end and close to the mounting ring 602.

[0039] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, in a wear-resistant pipe flange welding device of the present invention, the outer ring of the sliding tube 601 is provided with a threaded structure, the connection between the sliding tube 601 and the actuating tube 901 is a threaded connection, the interior of the actuating tube 901 is threaded, and the thread of the sliding tube 601 penetrates the actuating tube 901.

[0040] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9As shown, the wear-resistant pipe flange welding equipment of the present invention includes a spreading assembly 10 comprising a spreading rod 1001 hinged to a toggle ring 902, a spreading plate 1002 hinged to the spreading rod 1001, and a spreading rod 2 1003 hinged to the spreading plate 1002, which is symmetrical to the spreading rod 1001. The spreading rod 2 1003 is hinged to a mounting ring 602. The spreading rod 1001 and the spreading rod 2 1003 are symmetrically designed, and the spreading rod 1001 and the spreading rod 2 1003 are angled to the spreading plate 1002.

[0041] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, the wear-resistant pipe flange welding equipment of the present invention includes a locking assembly 11 comprising a connecting plate 1101 disposed on a sliding pipe 601. The connecting plate 1101 is fixedly connected to the sliding pipe 601, and a locking threaded rod 1102 is bearing connected to the connecting plate 1101. The locking threaded rod 1102 is threaded through the support frame 5.

[0042] Working principle: Take the flange and pipe to be welded. When welding the flange onto the pipe, place the flange on the clamping step 403 of the clamping block 402. Activate the hydraulic push rod 401. The output end of the hydraulic push rod 401 drives the clamping block 402 to move, making the clamping block 402 in close contact with the flange, achieving a slight clamping effect on the flange. Pass the pipe through the inner support plate 802, aligning the pipe with the flange, with the flange located outside the support plate 1002 and the pipe outside the inner support plate 802. To achieve precise axial and circumferential alignment during the pipe and flange welding process, rotate the adjusting rod 701 to adjust... Rod 701 drives the adjusting threaded rod 702 to rotate. Since the sliding tube 601 and the mounting ring 602 do not rotate, under the action of inner support rod 1 801 and inner support rod 2 803, the rotation of the adjusting threaded rod 702 forces the adjusting block 703 to move. When the adjusting block 703 retracts, it forces the adjusting block 703 to drive the inner support rod 1 801 to approach the inner support rod 2 803 and open up, forcing the inner support plate 802 to expand outward until the inner support plate 802 abuts against the inner wall of the pipe, forming a resisting effect on the pipe, making the pipe and the adjusting threaded rod 702 coaxial, thereby achieving the circumferential positioning effect of the pipe.

[0043] At this point, the pipe and flange are not fully aligned, and the gap between the flange and the pipe needs to be eliminated. Rotate the locking thread rod 1102. Under the action of the support frame 5, the locking thread rod 1102 retracts, causing the locking thread rod 1102 to drive the connecting plate 1101 to retract. This forces the connecting plate 1101 to drive the sliding tube 601 to retract. The retraction of the sliding tube 601 causes the mounting ring 602, the actuating component 9, the spreading component 10, the adjusting component 7, and the inner support component 8 to retract slightly. Since the inner support component 8 is in contact with the pipe, the pipe is forced to retract as well, making the pipe and flange tightly connected. This achieves axial positioning of the pipe and flange, thereby reducing the axial gap between the pipe and flange. This function is especially suitable for situations where the pipe and flange are not fully inserted when they are inserted into each other, achieving minor adjustments, reducing the width of the axial gap, and facilitating the welding of the pipe and flange.

[0044] At this point, it is necessary to further adjust the axis of the pipe and the flange, that is, adjust the circumferential positioning of the flange. Rotate the actuating tube 901. The threaded connection between the actuating tube 901 and the sliding tube 601 forces the actuating tube 901 to move, causing the actuating tube 901 to drive the actuating ring 902 to move forward. This causes the mounting ring 602 to drive the first expansion rod 1001 to move closer to the second expansion rod 1003 and open up, forcing the expansion plate 1002 to expand outward until the expansion plate 1002 abuts against the inner wall of the flange, forming a resisting and opening effect on the flange. Since the sliding tube 601, the adjusting threaded rod 702 and the actuating tube 901 are in the same axial position, when the actuating tube 901 cannot be rotated, the pipe and the flange are forced to be coaxial, realizing the circumferential positioning of the flange, reducing the circumferential gap between the pipe and the flange, and completing the precise alignment of the pipe and the flange.

[0045] During welding, the hydraulic push rod 401 is restarted, causing its output end to drive the clamping block 402 closer to the flange, achieving a clamping effect on the flange. The rotary motor 301 is then started, and its output shaft rotates, driving the drive gear 303 to rotate. The drive gear 303 then drives the driven gear 304 to rotate, which in turn drives the rotating ring disc 302 to rotate. The rotating ring disc 302 then drives the support frame 5 to rotate, forcing all components to rotate. This causes the pipe and flange to rotate synchronously, and the welding equipment is used to perform circumferential welding on the gap between the pipe and the flange.

[0046] This device achieves axial and circumferential positioning of pipes and flanges through a coaxial design, enabling multi-functional coordinated adjustment and reducing the gap between pipes and flanges. The effects are as follows:

[0047] 1. Pipe circumferential positioning function: By rotating the adjusting threaded rod 702, the adjusting block 703 is forced to move, so that the inner support rod 1 801 is close to the inner support rod 2 803 and is in an open state, which abuts against the four sides of the pipe to achieve the circumferential positioning effect of the pipe.

[0048] II. Axial adjustment function for pipes and flanges: By rotating the locking threaded rod 1102, the pipe is retracted and brought closer to the flange until the pipe and flange are in close contact, effectively reducing the axial distance between the pipe and the flange and achieving the axial positioning effect of the pipe and flange.

[0049] 3. Flange circumferential positioning function: By rotating the actuating tube 901, the first expansion rod 1001 is forced to move close to the second expansion rod 1003 and open up, thus abutting against the four sides of the flange and achieving the circumferential positioning effect of the flange; the above three functions work together and progress in layers to achieve axial and circumferential positioning of the pipeline and flange.

[0050] This solution enables multiple functions, including circumferential positioning of pipelines, axial adjustment of pipelines and flanges, and circumferential positioning of flanges. This effectively reduces axial and circumferential gaps between pipelines and flanges, achieving precise alignment and avoiding issues such as welding misalignment and eccentricity. It also improves pipeline connection sealing, increases welding strength, prevents pipeline leaks, enhances welding effect and efficiency, improves welding quality, and facilitates the subsequent operation of the pipeline system.

[0051] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wear-resistant pipe flange welding equipment, characterized in that, The system includes a processing plate (1), a support plate (2) on the processing plate (1), a rotating assembly (3) on the support plate (2), a clamping assembly (4) for clamping a flange on the output end of the rotating assembly (3), a support frame (5) on the rotating assembly (3), a support assembly (6) on the support frame (5), an adjusting assembly (7) on the support assembly (6), an inner support assembly (8) for positioning a pipe between the support assembly (6) and the adjusting assembly (7), and a toggle assembly (9) on the support assembly (6). 6) A spreading assembly (10) for positioning the flange is provided between the support frame (5) and the support assembly (6), and a locking assembly (11) is provided between the support frame (5) and the support assembly (6); wherein, when the pipe is circumferentially positioned, the adjusting assembly (7) controls the inner support assembly (8) to open and abut against the pipe to achieve circumferential positioning of the pipe; the locking assembly (11) controls the support assembly (6), the adjusting assembly (7) and the inner support assembly (8) to retract, forcing the pipe to approach the flange to achieve axial positioning of the pipe and the flange; when the flange is circumferentially positioned, the actuating assembly (9) controls the spreading assembly (10) to open to achieve circumferential positioning of the flange.

2. The wear-resistant pipe flange welding equipment according to claim 1, characterized in that, The rotating assembly (3) includes a rotary motor (301) mounted on the processing plate (1), a rotating ring disk (302) connected to the bearing on the support plate (2), a drive gear (303) connected to the output shaft of the rotary motor (301), and a driven gear (304) that meshes with the drive gear (303) is fixedly sleeved on the outer ring of the rotating ring disk (302).

3. The wear-resistant pipe flange welding equipment according to claim 2, characterized in that, The clamping assembly (4) includes a hydraulic push rod (401) mounted on the rotating ring disk (302), and a clamping block (402) is provided at the output end of the hydraulic push rod (401), and a clamping step (403) is provided on the clamping block (402).

4. The wear-resistant pipe flange welding equipment according to claim 3, characterized in that, The support assembly (6) includes a sliding tube (601) slidably disposed on the support frame (5), the sliding tube (601) passing through the support frame (5), and an installation ring (602) provided at the end of the sliding tube (601).

5. The wear-resistant pipe flange welding equipment according to claim 4, characterized in that, The adjustment assembly (7) includes an adjustment rod (701) connected to the inside of the sliding tube (601) by a bearing. An adjustment threaded rod (702) is provided on the adjustment rod (701). An adjustment block (703) is threadedly connected to the adjustment threaded rod (702). The adjustment threaded rod (702) is threaded through the adjustment block (703).

6. The wear-resistant pipe flange welding equipment according to claim 5, characterized in that, The inner support assembly (8) includes an inner support rod one (801) hinged to the adjusting block (703), an inner support plate (802) hinged to the inner support rod one (801), an inner support rod two (803) hinged to the inner support plate (802) and symmetrical to the inner support rod one (801), and the inner support rod two (803) hinged to the mounting ring (602).

7. The wear-resistant pipe flange welding equipment according to claim 6, characterized in that, The actuating assembly (9) includes an actuating tube (901) connected to the outer ring of the sliding tube (601), and an actuating ring (902) is bearing connected to the actuating tube (901).

8. The wear-resistant pipe flange welding equipment according to claim 7, characterized in that, The outer ring of the sliding tube (601) is provided with a threaded structure, and the connection between the sliding tube (601) and the actuating tube (901) is a threaded connection.

9. The wear-resistant pipe flange welding equipment according to claim 8, characterized in that, The spreading assembly (10) includes a spreading rod one (1001) hinged to the actuating ring (902), a spreading plate (1002) hinged to the spreading rod one (1001), a spreading rod two (1003) hinged to the spreading plate (1002) and symmetrical to the spreading rod one (1001), and the spreading rod two (1003) hinged to the mounting ring (602).

10. The wear-resistant pipe flange welding equipment according to claim 9, characterized in that, The locking assembly (11) includes a connecting plate (1101) disposed on the sliding tube (601), and a locking threaded rod (1102) is connected to the connecting plate (1101) by a bearing, and the locking threaded rod (1102) is threaded through the support frame (5).

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