Pipe welding and flaring machine
Patent Information
- Application Number
- CN202522488824.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-20
- Estimated Expiration
- 2035-11-24
Smart Images

Figure CN224866211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flaring machine technology, and in particular to a welded pipe flaring machine. Background Technology
[0002] Welded pipe, as an economical and efficient pipe material, is widely used in industries such as automobile manufacturing, refrigeration and air conditioning, fluid transportation, mechanical structures, and furniture. In practical applications, in order to facilitate connection with other pipe fittings or components, enhance the sealing of the connection, or serve as a guide inlet, the ends of welded pipes are often processed into a flared shape.
[0003] Currently, the industry mainly uses the following methods for flaring welded pipes:
[0004] Manual flaring method: Operators use simple flaring mandrels and manual tools such as hammers and punching tools to process individual pipes one by one. Although this method has low equipment investment costs, it has fatal drawbacks such as high labor intensity, extremely low production efficiency, and poor processing quality stability. The uniformity of flaring dimensions, taper, and surface quality are highly dependent on the operator's experience, and it is very easy to produce problems such as cracks, wrinkles, or uneven wall thickness, which is difficult to meet the needs of modern mass production.
[0005] Mechanical flaring machines: These machines typically use a motor or cylinder drive, along with a specialized flaring mandrel, to flare pipes. Compared to manual methods, they offer improved production efficiency and can achieve semi-automatic operation. However, they still require manual labor for feeding and controlling the flaring machine, making operation quite counterintuitive. Furthermore, existing flaring machines for welded pipes cannot continuously feed materials during the flaring process; they must be fed again after each flaring operation, reducing processing efficiency. Therefore, there is an urgent need to develop a new type of welded pipe flaring machine. Utility Model Content
[0006] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a welded pipe flaring machine.
[0007] To achieve the above objectives, the present invention adopts the following technical solution:
[0008] A pipe flaring machine includes a side support plate, a horizontal column fixedly connected to the outer wall of the side support plate, a first support plate fixedly installed on the upper surface of one end of the horizontal column, a first cylinder fixedly installed on the outer wall of the first support plate, a connector fixedly connected to the output end of the first cylinder, a slider plate fixedly connected to the other end of the connector, a first flaring head fixedly installed on the outer wall of the other side of the slider plate, a fixing plate fixedly installed on the upper surface of the other end of the horizontal column, a second flaring head fixedly installed on the outer wall of the fixing plate, the second flaring head corresponding to the first flaring head, a second support plate and a third support plate fixedly installed on the upper surface of the horizontal column, and a first support clamping plate fixedly installed on the side walls of both the second and third support plates.
[0009] A first mounting plate is provided on one side of the cross column. A second cylinder is fixedly mounted on the upper surface of the first mounting plate. The output end of the second cylinder is fixedly connected to the second mounting plate. The second mounting plate is slidably connected to the first mounting plate. A support frame is fixedly mounted on the upper surface of the second mounting plate. A movable plate is fixedly mounted on the top side wall of the support frame. A second support plate is fixedly mounted on the outer side wall of the movable plate. A side plate is fixedly connected to the side wall of the cross column. A base is fixedly connected to the bottom of the side plate. A third cylinder is fixedly mounted on the upper surface of the base. The output end of the third cylinder is fixedly connected to the first mounting plate.
[0010] Preferably, there are two side support plates, which are located at both ends of the horizontal column, and the slider plate is slidably connected to the horizontal column.
[0011] Preferably, the second support plate is located on the side closer to the fixed plate, and the third support plate is located on the side closer to the slider plate.
[0012] Preferably, a control switch is fixedly installed at the end of the second support plate away from the first mounting plate, and an emergency stop switch is fixedly installed at the end of the third support plate away from the first mounting plate. The first cylinder, the third cylinder, and the second cylinder are all electrically connected to the control switch and the emergency stop switch.
[0013] Preferably, a second slide rail is fixedly mounted on the upper surface of the first mounting plate, and a slider that is slidably connected to the second slide rail is fixedly mounted on the lower surface of the second mounting plate.
[0014] Preferably, a first slide rail is fixedly installed on the side wall of the side plate, a reinforcing frame is fixedly installed on the lower surface of the first mounting plate, and a slider is fixedly installed on the side wall of the reinforcing frame, the slider engaging with the slider of the first slide rail.
[0015] Preferably, there are three second support plates, which are arranged at equal intervals along the horizontal direction of the movable plate, and the first support plate corresponds to the second support plate.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. In this utility model, the first cylinder pushes the first flaring mandrel towards the welded pipe through the connecting parts and the slider plate. When the first flaring mandrel moves axially forward toward the pipe, the axial force is converted into radial force through the action of the conical inclined surface, forcing the first flaring mandrel and the second flaring mandrel to expand inward synchronously and evenly, thereby flaring the end of the welded pipe that is fitted outside it. After the flaring is completed, the first cylinder retracts, and the conical first flaring mandrel returns to its original position under the action of the first cylinder, making it easy to exit from the formed flaring. Then, the worker takes the welded pipe out from the first support plate, thus completing the entire welded pipe flaring operation. Moreover, the conical first flaring mandrel ensures the uniform distribution of the flaring force, avoids deformation caused by unilateral force, and has high forming quality.
[0018] 2. In this utility model, the third cylinder drives the second mounting plate upward through the first mounting plate. The second mounting plate controls the movable plate to move upward through the support frame. The movable plate drives the second support plate to move upward, lifting the welded pipe on the external conveyor through the second support plate, at which point the welded pipe separates from the external conveyor. Then, the second cylinder starts, driving the movable plate and the second support plate to move closer to the second flared top through the second mounting plate. The second support plate drives the welded pipe placed on the upper surface to move closer to the second flared top. Then, the third cylinder retracts, driving the second mounting plate downward through the first mounting plate. The second mounting plate controls the movable plate and the second support plate to move downward through the support frame, placing the welded pipe on the upper surface of the first support plate through the second support plate, at which point the welded pipe separates from the second support plate. Then, the second cylinder retracts and resets. During the feeding operation, the above operations are repeated sequentially, thereby moving the welded pipes placed on the outside one by one to the side of the second flared top, thus completing automatic feeding and improving work efficiency. Attached Figure Description
[0019] Figure 1 This is a top view of a pipe flaring machine according to the present invention.
[0020] Figure 2 This is a front view of a welded pipe flaring machine according to the present invention.
[0021] Figure 3 This is a front view of the third cylinder, side plate, and base of a pipe flaring machine according to the present invention.
[0022] Figure 4 This is a front view of the second support plate and the first support plate of a welded pipe flaring machine according to the present invention.
[0023] Figure 5 This is a top view of a pipe flaring machine according to the present invention; the movable plate is in working condition at this time.
[0024] The following are the labeling elements in the diagram: 1. Side support plate; 2. Horizontal column; 3. First support plate; 4. First cylinder; 5. Connector; 6. Sliding plate; 7. First flared top; 8. Fixing plate; 9. Second flared top; 10. Second support plate; 11. Third support plate; 12. First support clamping plate; 13. First mounting plate; 14. Second cylinder; 15. Second mounting plate; 16. Support frame; 17. Movable plate; 18. Second support clamping plate; 19. Third cylinder; 20. Side plate; 21. Base; 22. Reinforcing frame; 23. First slide rail; 24. Second slide rail; 25. Control switch; 26. Emergency stop switch. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0026] As attached Figure 1 To be continued Figure 5 As shown:
[0027] A pipe flaring machine includes a side support plate 1, a horizontal column 2 fixedly connected to the outer wall of the side support plate 1, a first support plate 3 fixedly installed on the upper surface of one end of the horizontal column 2, a first cylinder 4 fixedly installed on the outer wall of the first support plate 3, a connector 5 fixedly connected to the output end of the first cylinder 4, a slider plate 6 fixedly connected to the other end of the connector 5, a first flaring head 7 fixedly installed on the outer wall of the other side of the slider plate 6, a fixing plate 8 fixedly installed on the upper surface of the other end of the horizontal column 2, a second flaring head 9 fixedly installed on the outer wall of the fixing plate 8, the second flaring head 9 corresponding to the first flaring head 7, it is worth mentioning that the first flaring head 7 and the second flaring head 9 are both conical structures, a second support plate 10 and a third support plate 11 fixedly installed on the upper surface of the horizontal column 2, and a first support clamping plate 12 fixedly installed on the side walls of the second support plate 10 and the third support plate 11.
[0028] In the above technical solution, when the welded pipe is moved to the first flaring head 7 and the second flaring head 9, the first cylinder 4 is activated. The first cylinder 4 pushes the first flaring head 7 towards the welded pipe through the connecting piece 5 and the slider plate 6. When the first flaring head 7 moves axially forward toward the pipe, the axial force is converted into radial force through the action of the conical inclined surface, forcing the first flaring head 7 and the second flaring head 9 to expand inward synchronously and evenly, thereby flaring the end of the welded pipe that is fitted outside it. After the flaring is completed, the first cylinder 4 retracts, and the conical first flaring head 7 returns to its original position under the action of the first cylinder 4, making it easy to exit from the formed flaring. Then, the worker removes the welded pipe from the first support plate 12, thus completing the entire welded pipe flaring operation. This conical first flaring head 7 ensures the uniform distribution of the flaring force, avoids deformation caused by unilateral force, and has high forming quality.
[0029] It is worth mentioning that the first cylinder 4 is used as the driving source. The first cylinder 4 has precise speed, position and torque control capabilities, which can achieve precise control of the flaring process. This ensures that the welded pipe is firmly clamped and avoids damaging the pipe due to excessive clamping force.
[0030] A first mounting plate 13 is provided on one side of the horizontal column 2. A second cylinder 14 is fixedly mounted on the upper surface of the first mounting plate 13. The output end of the second cylinder 14 is fixedly connected to a second mounting plate 15. The second mounting plate 15 is slidably connected to the first mounting plate 13. A support frame 16 is fixedly mounted on the upper surface of the second mounting plate 15. A movable plate 17 is fixedly mounted on the top side wall of the support frame 16. A second support plate 18 is fixedly mounted on the outer side wall of the movable plate 17. A side plate 20 is fixedly connected to the side wall of the horizontal column 2. A base 21 is fixedly connected to the bottom of the side plate 20. A third cylinder 19 is fixedly mounted on the upper surface of the base 21. The output end of the third cylinder 19 is fixedly connected to the first mounting plate 13.
[0031] In the above technical solution, the third cylinder 19 is activated, and the third cylinder 19 drives the second mounting plate 15 to move upward through the first mounting plate 13. The second mounting plate 15 controls the movable plate 17 to move upward through the support frame 16. The movable plate 17 drives the second support clamping plate 18 to move upward, and the second support clamping plate 18 lifts the welded pipe on the external conveyor, at which point the welded pipe is separated from the external conveyor. Then the second cylinder 14 is activated, and the second cylinder 14 drives the movable plate 17 and the second support clamping plate 18 to move towards the side closer to the second flared top head 9 through the second mounting plate 15. The second support clamping plate 18 drives the upper surface to place The welded pipe moves towards the side closer to the second flared head 9, and then the third cylinder 19 retracts. The third cylinder 19 drives the second mounting plate 15 to move downward through the first mounting plate 13. The second mounting plate 15 controls the movable plate 17 and the second support plate 18 to move downward through the support frame 16. The welded pipe is placed on the upper surface of the first support plate 12 through the second support plate 18. At this time, the welded pipe is separated from the second support plate 18. Then the second cylinder 14 retracts and resets. During the feeding operation, the above operation is repeated in sequence, so that the welded pipe parts placed on the outside are moved one by one to the side of the second flared head 9, thereby completing the automatic feeding.
[0032] There are two side support plates 1, which are located at both ends of the horizontal column 2. The slider plate 6 is slidably connected to the horizontal column 2. The second support plate 10 is located on the side close to the fixed plate 8, and the third support plate 11 is located on the side close to the slider plate 6. The control switch 25 is fixedly installed on the end of the second support plate 10 away from the first mounting plate 13, and the emergency stop switch 26 is fixedly installed on the end of the third support plate 11 away from the first mounting plate 13. The first cylinder 4, the third cylinder 19, and the second cylinder 14 are all electrically connected to the control switch 25 and the emergency stop switch 26.
[0033] In the above technical solution, the control switch 25 has a built-in main controller for controlling the operation of each cylinder in the equipment. The main controller can be the MSC1211Y5 microprocessor from Texas Instruments, which is a mature technology in this field and has been fully disclosed. Therefore, it will not be repeated in the specification.
[0034] The upper surface of the first mounting plate 13 is fixedly mounted with a second slide rail 24, the lower surface of the second mounting plate 15 is fixedly mounted with a slider that is slidably connected to the second slide rail 24, the side wall of the side plate 20 is fixedly mounted with a first slide rail 23, the lower surface of the first mounting plate 13 is fixedly mounted with a reinforcing frame 22, the side wall of the reinforcing frame 22 is fixedly mounted with a slider, the slider is engaged with the slider of the first slide rail 23, there are three second support plates 18, the three second support plates 18 are arranged equidistantly along the horizontal direction of the movable plate 17, and the first support plate 12 and the second support plate 18 correspond to each other.
[0035] The specific usage and function of this embodiment are as follows:
[0036] When this utility model is in use, the operator controls the third cylinder 19 to start through the control switch 25. The third cylinder 19 drives the second mounting plate 15 to move upward through the first mounting plate 13. The second mounting plate 15 controls the movable plate 17 to move upward through the support frame 16. The movable plate 17 drives the second support plate 18 to move upward. The second support plate 18 lifts the welded pipe on the external conveyor, at which time the welded pipe is separated from the external conveyor.
[0037] Then the second cylinder 14 is activated. The second cylinder 14 drives the movable plate 17 and the second support plate 18 to move closer to the second flared top 9 via the second mounting plate 15. The second support plate 18 drives the welded pipe placed on the upper surface to move closer to the second flared top 9. Then the third cylinder 19 retracts. The third cylinder 19 drives the second mounting plate 15 to move downward via the first mounting plate 13. The second mounting plate 15 controls the movable plate 17 and the second support plate 18 to move downward via the support frame 16. The welded pipe is placed on the upper surface of the first support plate 12 via the second support plate 18. At this time, the welded pipe is separated from the second support plate 18. Then the second cylinder 14 retracts and resets.
[0038] During the feeding operation, the above operations are repeated in sequence, thereby moving the welded pipe fittings placed on the outside one by one to one side of the second flared head 9, thus completing the automatic feeding.
[0039] Please refer to the above structure and process. Figure 1-5 .
[0040] When the welded pipe is moved to the first flaring mandrel 7 and the second flaring mandrel 9, the first cylinder 4 is activated. The first cylinder 4 pushes the first flaring mandrel 7 towards the welded pipe through the connector 5 and the slider plate 6. When the first flaring mandrel 7 moves axially forward toward the pipe, the axial force is converted into radial force through the action of the conical inclined surface, forcing the first flaring mandrel 7 and the second flaring mandrel 9 to expand inward synchronously and evenly, thereby flaring the end of the welded pipe that is fitted outside it. After the flaring is completed, the first cylinder 4 retracts, and the conical first flaring mandrel 7 returns to its original position under the action of the first cylinder 4, making it easy to exit from the formed flare. Then, the worker removes the welded pipe from the first support clamp plate 12, thus completing the entire welded pipe flaring operation. This conical first flaring mandrel 7 ensures the uniform distribution of the flaring force, avoids deformation caused by unilateral force, and has high forming quality.
[0041] Please refer to the above structure and process. Figure 1 .
[0042] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A pipe flaring machine, comprising a side support plate (1), characterized in that, A horizontal column (2) is fixedly connected to the outer wall of the side support plate (1). A first support plate (3) is fixedly installed on the upper surface of one end of the horizontal column (2). A first cylinder (4) is fixedly installed on the outer wall of the first support plate (3). A connector (5) is fixedly connected to the output end of the first cylinder (4). A slider plate (6) is fixedly connected to the other end of the connector (5). A first flared head (7) is fixedly installed on the outer wall of the other side of the slider plate (6). A fixing plate (8) is fixedly installed on the upper surface of the other end of the horizontal column (2). A second flared head (9) is fixedly installed on the outer wall of the fixing plate (8). The second flared head (9) corresponds to the first flared head (7). A second support plate (10) and a third support plate (11) are fixedly installed on the upper surface of the horizontal column (2). A first support plate (12) is fixedly installed on the side walls of the second support plate (10) and the third support plate (11). A first mounting plate (13) is provided on one side of the cross column (2). A second cylinder (14) is fixedly mounted on the upper surface of the first mounting plate (13). A second mounting plate (15) is fixedly connected to the output end of the second cylinder (14). The second mounting plate (15) is slidably connected to the first mounting plate (13). A support frame (16) is fixedly mounted on the upper surface of the second mounting plate (15). A movable plate (17) is fixedly mounted on the top side wall of the support frame (16). A second support plate (18) is fixedly mounted on the outer side wall of the movable plate (17). A side plate (20) is fixedly connected to the side wall of the cross column (2). A base (21) is fixedly connected to the bottom of the side plate (20). A third cylinder (19) is fixedly mounted on the upper surface of the base (21). The output end of the third cylinder (19) is fixedly connected to the first mounting plate (13).
2. The pipe flaring machine according to claim 1, characterized in that, There are two side support plates (1), which are located at both ends of the horizontal column (2) respectively, and the slider plate (6) is slidably connected to the horizontal column (2).
3. The pipe flaring machine according to claim 1, characterized in that, The second support plate (10) is located on the side closer to the fixed plate (8), and the third support plate (11) is located on the side closer to the slider plate (6).
4. The pipe flaring machine according to claim 1, characterized in that, A control switch (25) is fixedly installed at the end of the second support plate (10) away from the first mounting plate (13), and an emergency stop switch (26) is fixedly installed at the end of the third support plate (11) away from the first mounting plate (13). The first cylinder (4), the third cylinder (19), and the second cylinder (14) are all electrically connected to the control switch (25) and the emergency stop switch (26).
5. The pipe flaring machine according to claim 1, characterized in that, The upper surface of the first mounting plate (13) is fixedly mounted with a second slide rail (24), and the lower surface of the second mounting plate (15) is fixedly mounted with a slider that is slidably connected to the second slide rail (24).
6. The pipe flaring machine according to claim 1, characterized in that, The side plate (20) is fixedly mounted with a first slide rail (23), and the lower surface of the first mounting plate (13) is fixedly mounted with a reinforcing frame (22). The side wall of the reinforcing frame (22) is fixedly mounted with a slider, and the slider is engaged with the slider of the first slide rail (23).
7. The pipe flaring machine according to claim 1, characterized in that, There are three second support plates (18), and the three second support plates (18) are arranged at equal intervals along the horizontal direction of the movable plate (17). The first support plate (12) and the second support plate (18) correspond to each other.