A welding apparatus for a tee
By using a fixed component with a conical arc block and a sloping sliding design, the axis alignment of the tee pipe is precisely calibrated, solving the problems of misaligned weld seams and uneven gaps in traditional welding equipment, and achieving high-precision welding results.
Patent Information
- Application Number
- CN202522112346.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-30
AI Technical Summary
Traditional welding equipment has difficulty accurately aligning the main and branch pipe axes of a tee pipe, resulting in quality problems such as misaligned welds and uneven gaps, which are particularly pronounced under high pressure and high temperature conditions.
The fixing component, which adopts a conical arc block and inclined sliding design, uses multiple arc blocks to set the conical cylinder, accurately calibrates the horizontal pipe axis, and uses the relative sliding of the inclined plane to control the radial and axial positioning errors of the pipe fitting within the range of millimeters or even micrometers, ensuring the alignment of the axis of each pipe opening and the fit of the interface.
It effectively eliminates positioning deviations caused by external wall size errors, ensures the welding quality of tee pipes, reduces welding misalignment and edge misalignment, and improves the stability and consistency of welding.
Smart Images
Figure CN224674127U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding equipment technology, specifically to a welding device for tee pipes. Background Technology
[0002] Tees, as core components of fluid transport networks, are widely used in petroleum, chemical, gas, water supply and drainage, undertaking key functions such as diversion, merging, and turning. With the increasing demands for pressure resistance and sealing performance in industrial pipeline systems, especially for tees under high pressure and high temperature conditions, the tolerance for welding quality defects is almost zero.
[0003] When fixing tees with traditional welding equipment, the fixing components require repeated calibration of the pipe positions, making it difficult to ensure precise alignment of the main pipe and branch pipe axes. This can easily lead to defects such as weld misalignment, uneven gaps, porosity, and slag inclusions, resulting in poor product quality stability. Utility Model Content
[0004] To solve the above technical problems, the present invention is achieved through the following technical solution: a welding device for a tee pipe, including a platform, a slide rail fixedly connected to the top of the platform, a fixing component slidably connected to the top of the slide rail, two fixing components, a frame fixedly connected to the outer edge of the platform, a welding component fixedly connected to the top middle of the frame, and the welding component being located above the platform. The fixing components include a fixing seat, which is slidably connected to the slide rail. A fixing plate is fixedly connected to the top center of the fixing seat, and multiple arc blocks are fixedly connected to one side of the fixing plate. The horizontal ends of the tee pipe are placed on the top of the platform. Simultaneously, the fixing seats on both sides move from the top of the slide rail towards the central tee pipe, causing the fixing plate to bring the arc blocks closer to the tee pipe. This causes the baffle to contact and compress the end of the tee pipe, compressing the return spring. At this point, the two fixing components on both sides... The horizontal direction of the pipe is fixed, and multiple arc blocks are set for the conical cylinder, which can accurately calibrate the horizontal pipe axis and avoid the pipe body from shifting or tilting during welding. The conical design can effectively eliminate the positioning deviation caused by the pipe body's outer wall size error, and ensure the coaxiality of the two ends of the horizontal pipe and the main pipe of the tee pipe. This reduces problems such as misalignment and misalignment of the welding interface from the source, and lays the foundation for the formation of a uniform weld in subsequent welding. Annular grooves are opened on the opposite sides of the arc blocks, and baffles are slidably connected to the opposite sides of the arc blocks. A sliding column is set on the side of the baffle near the arc block, and the sliding column is located inside the annular groove.
[0005] Preferably, the outer side of the arc block is inclined, the annular groove is parallel to the outer side, the baffle and the arc block are alternately arranged, a fixing rod is slidably connected to the middle of the fixing plate, the fixing rod passes through the fixing plate, a compression spring is sleeved on the outer side of the fixing rod, a contact block is fixedly connected to the end of the fixing rod away from the fixing plate, the edge of the contact block away from the fixing rod is inclined, the two ends of the compression spring are fixedly connected to the fixing plate and the contact block respectively, the baffle is set perpendicular to the fixing rod. By setting the fixing rod, the axis alignment of the two ends of the horizontal pipe can be quickly achieved, avoiding the pipe tilting and axis offset problems caused by the deviation of the positioning reference on one side. An arc plate is fixedly connected to the outer side of the baffle, the inner side of the arc plate contacts the outer side of the arc block, a return spring is sleeved on the outer side of the arc block, and the two ends of the return spring are fixedly connected to the fixing plate and the baffle respectively.
[0006] Preferably, the welding assembly includes a square plate, which is fixedly connected to a frame. A hydraulic cylinder is fixedly connected to the top of the square plate, and the output end of the hydraulic cylinder passes through the square plate. A circular plate is fixedly connected to the output end of the hydraulic cylinder. A guide rod is fixedly connected to the top of the circular plate. There are four guide rods, which are evenly distributed at the top edge of the circular plate. A connecting rod is fixedly connected to the outer side of the guide rod. The connecting rod is L-shaped and there are two connecting rods, which are symmetrically arranged. A ring is fixedly connected to the end of the connecting rod away from the guide rod. After the tee pipe is fixed horizontally, the hydraulic cylinder works to drive the circular plate to move downward, which in turn drives the bottom middle plate to move downward. This causes the inclined edges on both sides of the bottom of the middle plate to contact the inclined edges of the contact block and generate pressure. By utilizing the relative sliding of the inclined surfaces, the radial and axial positioning errors of the pipe fitting can be controlled within the millimeter or even micrometer range, which can accurately ensure the axial alignment and interface fit of each pipe opening. To avoid problems such as misalignment and uneven gaps in welding from the source, the slider slides inside the groove on the ring, causing the slider to drive the welding gun to weld the joint. The ring has a groove inside, and the slider is slidably connected to the groove inside the ring. The welding gun is slidably connected inside the slider, and a magnetic block is fixedly connected to the outside of the welding gun. A magnetic block is fixedly connected to the bottom of the slider near the welding gun. A middle plate is fixedly connected to the bottom center of the circular plate. The edge of the middle plate away from the circular plate is inclined. A round rod is slidably connected to the outside of the middle plate. A positioning plate is fixedly connected to the end of the round rod away from the middle plate. The hydraulic cylinder works to drive the circular plate to move downward, which in turn drives the middle plate at the bottom to move downward. At the same time, under the elastic force of the spring plate, the positioning plate contacts the inner wall of the vertical pipe of the tee pipe, thereby fixing the tee pipe as a whole. Spring plates are fixedly connected to both ends of the positioning plate. The end of the spring plate away from the positioning plate is fixedly connected to the middle plate.
[0007] This utility model provides a welding device for tee pipes. It has the following advantages: (i) The welding equipment for tee pipes uses multiple arc blocks to set up a conical cylinder, which can accurately calibrate the horizontal pipe axis and avoid the pipe body from shifting or tilting during the welding process. The conical design can effectively eliminate the positioning deviation caused by the outer wall size error of the pipe body, and ensure the coaxiality of the two ends of the horizontal pipe and the main pipe of the tee pipe, thereby reducing the problems of misalignment and misalignment of the welding interface from the source.
[0008] (ii) The welding equipment for tee pipes can control the radial and axial positioning errors of the pipe fittings within the range of millimeters or even micrometers by utilizing the relative sliding of the inclined plane. This can accurately ensure the axial alignment and interface fit of each pipe opening, and avoid problems such as welding misalignment and uneven gaps from the source. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the fixing component of this utility model; Figure 3 This is a partial structural schematic diagram of the fixing component of this utility model; Figure 4 This is a schematic diagram of the welding assembly of this utility model; Figure 5 This is a bottom view of the welding assembly of this utility model.
[0010] In the diagram: 1. Platform; 2. Slide rail; 3. Frame; 4. Welding assembly; 41. Square plate; 42. Hydraulic cylinder; 43. Guide rod; 44. Round plate; 45. Connecting rod; 46. Ring; 47. Slider; 48. Welding torch; 49. Magnetic block; 410. Round rod; 411. Spring plate; 412. Positioning plate; 413. Magnetic block; 414. Intermediate plate; 5. Fixing assembly; 51. Fixing seat; 52. Fixing plate; 53. Fixing rod; 54. Compression spring; 55. Contact block; 56. Return spring; 57. Arc block; 58. Baffle; 59. Arc plate; 510. Annular groove. Detailed Implementation
[0011] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0012] Please see Figure 1-5This utility model provides a technical solution: a welding device for a three-way pipe, including a platform 1, a slide rail 2 fixedly connected to the top of the platform 1, a fixing component 5 slidably connected to the top of the slide rail 2, and two fixing components 5. A frame 3 is fixedly connected to the outer edge of the platform 1, and a welding component 4 is fixedly connected to the middle of the top of the frame 3. The welding component 4 is located above the platform 1. The fixing component 5 includes a fixing seat 51, which is slidably connected to the slide rail 2. A fixing plate 52 is fixedly connected to the top center of the fixing seat 51. An arc block 57 is fixedly connected to one side of the fixing plate 52. There are multiple arc blocks 57, which are evenly distributed on the fixing plate 52. The horizontal ends of the tee pipe are placed on the top of the platform 1. At the same time, the fixing seats 51 on both sides move from the top of the slide rail 2 toward the tee pipe in the middle, so that the fixing plate 52 drives the arc block 57 to approach the tee pipe. As a result, the baffle 58 contacts the end of the tee pipe and generates pressure. The return spring 56 is compressed by force. At this time, the two fixing seats on both sides... The fixing component 5 fixes the T-shaped pipe horizontally. Multiple arc blocks 57 are set as a conical cylinder, which can accurately calibrate the horizontal pipe axis and avoid the pipe body from shifting or tilting during welding. The conical design can effectively eliminate the positioning deviation caused by the pipe body's outer wall size error, and ensure the coaxiality of the two ends of the horizontal pipe and the main pipe of the T-shaped pipe. This reduces problems such as misalignment and misalignment of the welding interface from the source, and lays the foundation for the formation of a uniform weld in subsequent welding. The opposite side of the arc block 57 is provided with an annular groove 510, and the opposite side of the arc block 57 is slidably connected with a baffle 58. The side of the baffle 58 near the arc block 57 is provided with a sliding column, which is located inside the annular groove 510.
[0013] The outer side of the arc block 57 is inclined, the annular groove 510 is parallel to the outer side, the baffle 58 and the arc block 57 are alternately arranged, the middle of the fixing plate 52 is slidably connected to the fixing rod 53, the fixing rod 53 passes through the fixing plate 52, the outer side of the fixing rod 53 is fitted with a compression spring 54, the end of the fixing rod 53 away from the fixing plate 52 is fixedly connected to a contact block 55, the edge of the contact block 55 away from the fixing rod 53 is inclined, the two ends of the compression spring 54 are fixedly connected to the fixing plate 52 and the contact block 55 respectively, the baffle 58 is set perpendicular to the fixing rod 53. By setting the fixing rod 53, the axis alignment of the two ends of the horizontal pipe can be quickly achieved, avoiding the pipe tilting and axis offset problems caused by the deviation of the positioning reference on one side. The outer side of the baffle 58 is fixedly connected to the arc plate 59, the inner side of the arc plate 59 contacts the outer side of the arc block 57, the outer side of the arc block 57 is fitted with a return spring 56, the two ends of the return spring 56 are fixedly connected to the fixing plate 52 and the baffle 58 respectively.
[0014] The welding assembly 4 includes a square plate 41, which is fixedly connected to the frame 3. A hydraulic cylinder 42 is fixedly connected to the top of the square plate 41, and the output end of the hydraulic cylinder 42 passes through the square plate 41. A circular plate 44 is fixedly connected to the output end of the hydraulic cylinder 42. Four guide rods 43 are fixedly connected to the top of the circular plate 44, and the four guide rods 43 are evenly distributed at the top edge of the circular plate 44. Two connecting rods 45 are fixedly connected to the outer side of the guide rods 43. The connecting rods 45 are L-shaped and are symmetrically arranged. A ring 46 is fixedly connected to the end of the connecting rod 45 away from the guide rod 43. After the tee pipe is fixed horizontally, the hydraulic cylinder 42 drives the circular plate 44 to move downward, causing the circular plate 44 to drive the bottom intermediate plate 414 to move downward. As a result, the inclined edges on both sides of the bottom of the intermediate plate 414 contact the inclined edges of the contact block 55 and generate pressure. By utilizing the relative sliding of the inclined surfaces, the radial and axial positioning errors of the pipe fitting can be controlled within the millimeter or even micrometer range. This can accurately ensure the axial alignment and interface fit of each pipe opening, avoiding welding misalignment and gaps from the source. To ensure evenness, slider 47 then slides inside the groove on ring 46, causing it to drive welding torch 48 to weld the joint. The ring 46 has a groove inside, through which slider 47 is slidably connected. Welding torch 48 is slidably connected inside slider 47. A magnetic block 49 is fixedly connected to the outside of welding torch 48. A magnetic block 413 is fixedly connected to the bottom of slider 47 near the bottom of welding torch 48. A middle plate 414 is fixedly connected to the bottom center of circular plate 44, with the edge of the middle plate 414 away from the circular plate 44 being inclined. A round rod 410 is slidably connected to the outer side of the intermediate plate 414. A positioning plate 412 is fixedly connected to the end of the round rod 410 away from the intermediate plate 414. When the hydraulic cylinder 42 works, it drives the round plate 44 to move downward, which causes the round plate 44 to drive the bottom intermediate plate 414 to move downward. At the same time, under the elastic force of the spring plate 411, the positioning plate 412 contacts the inner wall of the vertical pipe of the tee pipe, thereby fixing the tee pipe as a whole. The two ends of the positioning plate 412 are fixedly connected to the spring plate 411. The end of the spring plate 411 away from the positioning plate 412 is fixedly connected to the intermediate plate 414.
[0015] In use, place the two horizontal ends of the T-pipe on the top of the platform 1. At the same time, the fixing seats 51 on both sides move from the top of the slide rail 2 toward the T-pipe in the middle, so that the fixing plate 52 drives the arc block 57 to approach the T-pipe. As a result, the baffle 58 contacts the end of the T-pipe and generates pressure. The return spring 56 is compressed by force. At this time, the two fixing components 5 on both sides fix the T-pipe in the horizontal direction.
[0016] After the T-pipe is fixed horizontally, the hydraulic cylinder 42 drives the circular plate 44 to move downward, which in turn drives the bottom intermediate plate 414 to move downward. Under the elastic force of the spring plate 411, the positioning plate 412 contacts the inner wall of the vertical pipe of the T-pipe, thereby fixing the entire T-pipe. Then, the slider 47 slides inside the groove on the ring 46, which drives the welding gun 48 to weld the joint.
[0017] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0018] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A welding device for tee pipes, characterized in that, include: Platform (1), the top of the platform (1) is fixedly connected to a slide rail (2), the top of the slide rail (2) is slidably connected to a fixing component (5), the outer edge of the platform (1) is fixedly connected to a frame (3), the top middle of the frame (3) is fixedly connected to a welding component (4), the welding component (4) is located above the platform (1). The fixing component (5) includes a fixing seat (51), which is slidably connected to the slide rail (2). A fixing plate (52) is fixedly connected to the top middle of the fixing seat (51). An arc block (57) is fixedly connected to one side of the fixing plate (52). There are multiple arc blocks (57), which are evenly distributed on the fixing plate (52). An annular groove (510) is provided on the opposite side of the arc block (57). A baffle (58) is slidably connected to the opposite side of the arc block (57). A sliding column is provided on the side of the baffle (58) near the arc block (57). The sliding column is located inside the annular groove (510).
2. The welding equipment for a tee pipe according to claim 1, characterized in that: The outer side of the arc block (57) is inclined, the annular groove (510) is parallel to the outer side, the baffle (58) and the arc block (57) are alternately arranged, the middle part of the fixing plate (52) is slidably connected to the fixing rod (53), the fixing rod (53) passes through the fixing plate (52), the outer side of the fixing rod (53) is fitted with a compression spring (54), the end of the fixing rod (53) away from the fixing plate (52) is fixedly connected to the contact block (55), and the two ends of the compression spring (54) are fixedly connected to the fixing plate (52) and the contact block (55) respectively.
3. The welding equipment for a tee pipe according to claim 2, characterized in that: The baffle (58) is perpendicular to the fixing rod (53). An arc plate (59) is fixedly connected to the outer side of the baffle (58). The inner side of the arc plate (59) is in contact with the outer side of the arc block (57). A return spring (56) is sleeved on the outer side of the arc block (57). The two ends of the return spring (56) are fixedly connected to the fixing plate (52) and the baffle (58) respectively.
4. The welding equipment for a tee pipe according to claim 1, characterized in that: The welding assembly (4) includes a square plate (41), which is fixedly connected to the frame (3). A hydraulic cylinder (42) is fixedly connected to the top of the square plate (41). The output end of the hydraulic cylinder (42) passes through the square plate (41). A circular plate (44) is fixedly connected to the output end of the hydraulic cylinder (42). A guide rod (43) is fixedly connected to the top of the circular plate (44). There are four guide rods (43), which are evenly distributed at the top edge of the circular plate (44).
5. The welding equipment for a tee pipe according to claim 4, characterized in that: A connecting rod (45) is fixedly connected to the outside of the guide rod (43). The connecting rod (45) is L-shaped and there are two connecting rods (45). The two connecting rods (45) are symmetrically arranged. A ring (46) is fixedly connected to the end of the connecting rod (45) away from the guide rod (43). A sliding groove is opened inside the ring (46). A slider (47) is slidably connected to the sliding groove inside the ring (46). A welding gun (48) is slidably connected inside the slider (47).
6. The welding equipment for a tee pipe according to claim 5, characterized in that: A magnetic block (49) is fixedly connected to the outside of the welding torch (48). A magnetic block (413) is fixedly connected to the bottom of the slider (47) near the welding torch (48). An intermediate plate (414) is fixedly connected to the middle of the bottom of the circular plate (44). A round rod (410) is slidably connected to the outside of the intermediate plate (414). A positioning plate (412) is fixedly connected to the end of the round rod (410) away from the intermediate plate (414). Spring plates (411) are fixedly connected to both ends of the positioning plate (412). The end of the spring plate (411) away from the positioning plate (412) is fixedly connected to the intermediate plate (414).