A pipe expanding device
By designing a linkage mechanism and a servo motor-driven tube flaring and rotating device, the problem of insufficient adaptability of the heating flaring rod shape was solved, realizing the adaptability of the flaring device to various flaring widths, and improving processing efficiency and equipment versatility.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHANYA PIPE IND CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing technology, the shape of the heating flaring rod is only suitable for specific types of chamfering or flaring shapes, making it difficult to adapt to the requirements of different angles and curvatures for outward flanges, and requiring frequent replacement of the heating rod.
A flaring and rotating device for pipe processing was designed. The device achieves the up-and-down movement of the expansion plate through a linkage mechanism. Combined with a threaded rod and a servo motor drive, it realizes the rotation and linear movement of the expansion plate. It is equipped with a telescopic rod and an arc-shaped chuck to accommodate pipes of different diameters and positions. The device's versatility is improved by utilizing shock-absorbing and anti-slip structures.
The design of the flaring rotary equipment improves the versatility of the equipment, enabling it to adapt to various flaring width requirements, reducing the frequency of heating rod replacement, and improving processing efficiency.
Smart Images

Figure CN224490044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rotating equipment technology, specifically a flaring rotating device for pipe processing. Background Technology
[0002] In fields such as pipe connection, building decoration, and furniture manufacturing, it is often necessary to flare one end of the pipe to facilitate connection with other components, such as joints, flanges, and valves.
[0003] In the existing technology, the horizontal movement of the heating flaring rod relies on the threaded rod and threaded sleeve, while the vertical movement relies on the vertical cylinder. The motor drives the heating flaring rod to gradually move towards the edge, thereby flaring the rotating plastic tube and completing the flaring work of the corresponding size.
[0004] Since the shape of the heating flaring rod may only be suitable for specific types of chamfering or flaring shapes, if different angles and curvatures of outward flaring are required, different heating rods may need to be replaced. Therefore, this utility model provides a flaring rotary device for pipe processing to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] This utility model provides a flaring rotary device for pipe processing, which aims to solve the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution:
[0009] Preferably, the device includes a base plate, a pair of support platforms are provided on the top of the base plate, a movable tube is provided on one side of the support platform, a plurality of connecting strips are fixedly connected to the outer wall of the movable tube, a pair of connecting plates are hinged to both ends of the connecting strips, a connecting strip is hinged to the other end of the connecting plate, an expansion plate is fixedly connected to the top of the connecting strips, a sleeve is sleeved inside the movable tube, the sleeve extends to the outside of the support platform, a limiting block is sleeved outside the sleeve, a snap-fit block is fixedly connected to one end of the expansion plate, and the snap-fit block slides with the groove in the limiting block.
[0010] Preferably, a threaded rod is screwed into the sleeve, one end of the threaded rod is fixedly connected to a motor, the other end of the threaded rod is fixedly connected to an anti-disengagement cap, and a moving block is sleeved on the threaded rod.
[0011] Preferably, a belt is fitted over the sleeve, and a rotating shaft is fitted inside the other end of the belt. A servo motor is fixedly connected to one end of the rotating shaft, and a support plate is provided at the bottom of the servo motor. The support plate is fixedly connected to the support platform.
[0012] Preferably, a telescopic rod is fixedly connected to one end of the support platform, a circular plate is fixedly connected to one end of the telescopic rod, a plurality of rectangular grooves are opened at one end of the circular plate, a sliding block is slidably connected in the rectangular groove, an arc-shaped clamp is fixedly connected to one end of the sliding block, a fixing plate 44 is provided in the rectangular groove, and both the fixing plate 44 and the sliding block 42 are provided with threaded holes, and bolts 45 are screwed into the threaded holes.
[0013] Preferably, a shock-absorbing plate is fixedly connected to the inner wall of the groove of the limiting block, a spring is fixedly connected to one end of the shock-absorbing plate, and a rubber plate is fixedly connected to the other end of the spring.
[0014] Preferably, one end of the arc-shaped clamp is fixedly connected to an anti-slip plate.
[0015] (III) Beneficial Effects
[0016] 1. In this utility model, a connecting strip is fixed to the outer wall of the moving tube. Connecting plates are hinged to both ends of the connecting strip, and connecting strip two is hinged to the other end of the connecting plates. An expansion plate is fixed to the top of the connecting strip two, and a snap-fit block is fixed to one end of the expansion plate. When the moving tube moves relative to the sleeve, it will drive the connecting strip, connecting plates, and connecting strip two to move together, so that the expansion plate can move up and down to achieve the expansion effect. Through the linkage of the linkage mechanism, the expansion plate can form different heights to adapt to various flare width requirements and improve the versatility of the equipment.
[0017] 2. In this utility model, by setting a sleeve to be fitted inside the moving tube, a limiting block to be fitted inside the sleeve, a threaded rod to be threaded inside, and a moving block to be fitted outside the threaded rod, the motor drives the threaded rod to rotate. Due to the action of the thread, the moving block on the threaded rod will move along the axial direction of the threaded rod. The movement of the moving block will push or pull the limiting block, thereby affecting the position of the expansion plate. This realizes the rotation of the sleeve and the linear movement of the moving block, providing power for the movement of the expansion plate. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of a flaring rotary device for pipe processing.
[0019] Figure 2 This is a schematic diagram of the flaring component in a flaring rotary device for pipe processing.
[0020] Figure 3 This is a schematic diagram of the moving parts in a flaring rotary device for pipe processing.
[0021] Figure 4 This is a front view of a flaring rotary device for pipe processing.
[0022] Figure 5 This is a schematic diagram of the vibration damping component in a flaring rotary device for pipe processing.
[0023] In the picture:
[0024] 1. Base plate; 11. Support platform; 12. Moving tube; 13. Connecting strip one; 14. Connecting plate; 15. Connecting strip two; 16. Expansion plate; 17. Sleeve; 18. Snap-fit block; 19. Limiting block; 2. Threaded rod; 21. Anti-detachment cap; 22. Moving block; 3. Belt; 31. Servo motor; 32. Support plate; 4. Telescopic rod; 41. Round plate; 42. Sliding block; 43. Arc-shaped clamp; 44. Fixing plate; 45. Bolt; 5. Shock-absorbing plate; 51. Spring; 52. Rubber plate; 6. Anti-slip plate. 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. 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.
[0026] This utility model provides a flaring rotary device for pipe processing, such as... Figure 1-5 As shown, the device includes a base plate 1, with a pair of support platforms 11 on the top of the base plate 1. A movable tube 12 is provided on one side of the support platform 11. Several connecting strips 13 are fixed to the outer wall of the movable tube 12. A pair of connecting plates 14 are hinged to both ends of the connecting strips 13. A connecting strip 15 is hinged to the other end of the connecting plate 14. An expansion plate 16 is fixed to the top of the connecting strip 15. A sleeve 17 is sleeved inside the movable tube 12, extending to the outside of the support platform 11. A limiting block 19 is sleeved outside the sleeve 17. A snap-fit block 18 is fixed to one end of the expansion plate 16, and the snap-fit block 18 slides in the groove inside the limiting block 19. During operation, the shape of the heating flaring rod may only be suitable for specific types of chamfers or flaring shapes. If different angles and curvatures of outward flanges are required, different heating rods may need to be replaced. By setting a connecting strip 13 fixed to the outer wall of the moving tube 12, connecting plates 14 are hinged at both ends of the connecting strip 13, and connecting strip 2 15 is hinged at the other end of the connecting plate 14. An expansion plate 16 is fixed to the top of the connecting strip 2 15, and a snap-fit block 18 is fixed to one end of the expansion plate 16. When the moving tube 12 moves relative to the sleeve 17, it will drive the connecting strip 13, connecting plate 14, and connecting strip 2 15 to move up and down, so that the expansion plate 16 can move up and down to achieve the expansion effect. Through the linkage of the linkage mechanism, the expansion plate can form different heights to adapt to various flare width requirements and improve the versatility of the equipment.
[0027] like Figure 1 and Figure 2As shown, a threaded rod 2 is screwed into the sleeve 17. A motor is fixed to one end of the threaded rod 2, and an anti-detachment cap 21 is fixed to the other end. A moving block 22 is sleeved on the threaded rod 2. During operation, by setting the sleeve 17 to be sleeved inside the moving tube 12, with a limiting block 19 sleeved on the sleeve, and the threaded rod 2 screwed in, and the moving block 22 sleeved on the threaded rod 2, the motor drives the threaded rod 2 to rotate. Due to the action of the thread, the moving block 22 on the threaded rod 2 will move along the axial direction of the threaded rod 2. The movement of the moving block 22 will push or pull the limiting block 19, thereby affecting the position of the expansion plate 16, realizing the rotation of the sleeve 17 and the linear movement of the moving block 22, providing power for the movement of the expansion plate.
[0028] like Figure 1 As shown, a belt 3 is fitted over the sleeve 17, and a rotating shaft is fitted over the other end of the belt 3. A servo motor 31 is fixedly connected to one end of the rotating shaft. A support plate 32 is provided at the bottom of the servo motor 31, and the support plate 32 is fixedly connected to the support platform 11. During operation, by setting the belt 3 to be fitted over the sleeve 17, and the rotating shaft to be fitted over the other end of the belt 3, and the servo motor 31 to be fixedly connected to one end of the rotating shaft, the servo motor 31 drives the rotating shaft to rotate, and the rotating shaft drives the sleeve 17 to rotate through the belt 3.
[0029] like Figure 1 As shown, a telescopic rod 4 is fixedly connected to one end of the support platform 11, and a circular plate 41 is fixedly connected to one end of the telescopic rod 4. Multiple rectangular slots are provided on one end of the circular plate 41, and sliding blocks 42 are slidably connected within these slots. An arc-shaped clamp 43 is fixedly connected to one end of each sliding block 42. A fixing plate 44 is provided within the rectangular slots. Both the fixing plate 44 and the sliding blocks 42 have threaded holes, and bolts 45 are screwed into these threaded holes. During operation, the telescopic rod 4 is fixedly connected to the support platform 11, and one end of the telescopic rod 4 is fixedly connected to the circular plate 41. Both the fixed plate 44 and the sliding block 42 are provided with threaded holes, and bolts 45 are screwed into the threaded holes. The circular plate 41 is provided with a rectangular groove, and the sliding block 42 slides in the rectangular groove. One end of the sliding block 42 is fixedly connected to an arc-shaped clamp 43, so that the extension and retraction of the telescopic rod 4 can adjust the radial position of the circular plate 41. The sliding block 42 slides in the rectangular groove, which can adjust the circumferential angle of the arc-shaped clamp 43. In this way, the arc-shaped clamp 43 can flexibly adjust its position and angle to clamp pipes of different diameters and positions.
[0030] like Figure 5As shown, a damping plate 5 is fixedly connected to the inner wall of the groove in the limiting block 19. A spring 51 is fixedly connected to one end of the damping plate 5, and a rubber plate 52 is fixedly connected to the other end of the spring 51. During operation, the limiting block 19 has a groove, and the locking block 18 slides in contact with the groove. The damping plate 5 is fixedly connected to the inner wall of the groove. A spring 51 is fixedly connected to one end of the damping plate 5, and a rubber plate 52 is fixedly connected to the other end of the spring 51. This allows the spring 51 to be compressed or stretched when the expansion plate 16 moves and the locking block 18 slides in the groove of the limiting block 19. The damping plate 5 and the rubber plate 52 provide cushioning and a certain amount of friction to absorb some of the impact and vibration.
[0031] like Figure 4 As shown, an anti-slip plate 6 is fixed to one end of the arc-shaped chuck 43. During operation, by setting the anti-slip plate 6 to be fixed to one end of the arc-shaped chuck 43, the anti-slip plate 6 contacts the surface of the pipe when the chuck clamps the pipe, and the friction is increased by utilizing its material or surface texture.
[0032] Working principle: Since the shape of the heating flaring rod may only be suitable for specific types of chamfers or flares, different heating rods may be needed to form outward flanges with different angles and curvatures. A connecting strip 13 is fixed to the outer wall of the moving tube 12. Connecting plates 14 are hinged to both ends of the connecting strip 13, and connecting strip 2 15 is hinged to the other end of the connecting plate 14. An expansion plate 16 is fixed to the top of the connecting strip 2 15, and a locking block 18 is fixed to one end of the expansion plate 16. When the moving tube 12 moves relative to the sleeve 17, it drives the connecting strip 13, connecting plate 14, and connecting strip 2 15 in a coordinated manner, allowing the expansion plate 16 to move up and down, achieving the expansion effect. The linkage mechanism allows the expansion plate to reach different heights, adapting to various flare width requirements and improving the equipment's versatility. A sleeve 17 is fitted inside the moving tube 12, with a limiting block 19 attached to it. A threaded rod 2 is internally threaded, and a moving block 22 is fitted onto the threaded rod 2. This allows the motor 21 to drive the threaded rod 2 to rotate. Due to the thread, the moving block 22 on the threaded rod 2 moves axially along the threaded rod 2. The movement of the moving block 22 pushes or pulls the limiting block 19, thus affecting the position of the expansion plate 16. This achieves the rotation of the sleeve 17 and the linear movement of the moving block 22, providing power for the expansion plate's movement. A belt 3 is also fitted around the sleeve 17. The other end of belt 3 is fitted with a rotating shaft, one end of which is fixed to a servo motor 31, causing the servo motor 31 to drive the rotating shaft to rotate. The rotating shaft drives the sleeve 17 to rotate via belt 3. A telescopic rod 4 is fixed to a support platform 11, one end of which is fixed to a circular plate 41. The circular plate 41 has a rectangular groove, and a sliding block 42 slides in the rectangular groove. One end of the sliding block 42 is fixed to an arc-shaped chuck 43. Both the fixed plate 44 and the sliding block 42 have threaded holes, and bolts 45 are screwed into the threaded holes. This allows the extension and retraction of the telescopic rod 4 to adjust the radial position of the circular plate 41. The sliding block 42 slides in the rectangular groove, which can adjust the circumferential angle of the arc-shaped chuck 43. In this way, the arc-shaped chuck 43 can be flexibly adjusted. The position and angle are adjusted to clamp pipes of different diameters and positions. A groove is set in the limiting block 19, and the snap-fit block 18 slides in the groove. The inner wall of the groove is fixed to the shock-absorbing plate 5. One end of the shock-absorbing plate 5 is fixed to the spring 51, and the other end of the spring 51 is fixed to the rubber plate 52. When the expansion plate 16 moves and the snap-fit block 18 slides in the groove of the limiting block 19, the spring 51 will be compressed or stretched. The shock-absorbing plate 5 and the rubber plate 52 provide buffering and a certain friction force to absorb part of the impact and vibration. By setting the anti-slip plate 6 fixed to one end of the arc-shaped clamp 43, when the clamp clamps the pipe, the anti-slip plate 6 contacts the surface of the pipe, and the friction force is increased by its material or surface texture.
[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A flaring and rotating device for pipe processing, comprising a base plate (1), characterized in that: The base plate (1) is provided with a pair of support platforms (11) on the top. A movable tube (12) is provided on one side of the support platform (11). Several connecting strips (13) are fixed to the outer wall of the movable tube (12). A pair of connecting plates (14) are hinged to both ends of the connecting strips (13). A connecting strip (15) is hinged to the other end of the connecting plate (14). An expansion plate (16) is fixed to the top of the connecting strip (15). A sleeve (17) is sleeved inside the movable tube (12). The sleeve (17) extends to the outside of the support platform (11). A limiting block (19) is sleeved outside the sleeve (17). A snap-fit block (18) is fixed to one end of the expansion plate (16). The snap-fit block (18) slides with the groove in the limiting block (19).
2. The flaring rotary device for pipe processing according to claim 1, characterized in that: The sleeve (17) is threaded with a threaded rod (2), one end of which is fixedly connected to a motor, and the other end of which is fixedly connected to an anti-detachment cap (21). The threaded rod (2) is fitted with a moving block (22).
3. The flaring rotary device for pipe processing according to claim 1, characterized in that: The sleeve (17) is fitted with a belt (3), and the other end of the belt (3) is fitted with a rotating shaft. One end of the rotating shaft is fixedly connected to a servo motor (31), and the bottom of the servo motor (31) is provided with a support plate (32). The support plate (32) is fixedly connected to the support platform (11).
4. The flaring rotary device for pipe processing according to claim 1, characterized in that: One end of the support platform (11) is fixedly connected to a telescopic rod (4), and one end of the telescopic rod (4) is fixedly connected to a circular plate (41). One end of the circular plate (41) is provided with multiple rectangular grooves, and a sliding block (42) is slidably connected in the rectangular groove. One end of the sliding block (42) is fixedly connected to an arc-shaped clamp (43), and a fixing plate (44) is provided in the rectangular groove. Both the fixing plate (44) and the sliding block (42) are provided with threaded holes, and bolts (45) are screwed into the threaded holes.
5. The flaring rotary device for pipe processing according to claim 1, characterized in that: A damping plate (5) is fixedly connected to the inner wall of the groove of the limiting block (19). A spring (51) is fixedly connected to one end of the damping plate (5), and a rubber plate (52) is fixedly connected to the other end of the spring (51).
6. The flaring rotary device for pipe processing according to claim 4, characterized in that: One end of the arc-shaped clamp (43) is fixed with an anti-slip plate (6).