Equipment for flaring two ends of aluminum pipe
By using a clamping mechanism and a driving device to simultaneously flare both ends of the aluminum tube, the problem of existing equipment being unable to adapt to aluminum tubes of different lengths is solved, the flaring efficiency and quality are improved, and end cracking is avoided.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-09
- Publication Date
- 2026-04-03
AI Technical Summary
Existing aluminum tube flaring equipment cannot adapt to the flaring of both ends of aluminum tubes of different lengths, and the operation is cumbersome and prone to causing end cracking.
The aluminum tube is fixed by a clamping mechanism. The slide is driven by a screw motor and a hydraulic cylinder to approach both ends of the aluminum tube. The simultaneous flaring of both ends of the aluminum tube is achieved by combining the flaring operation of the telescopic flaring rod and the rotation of the driving rod.
This improved the efficiency and quality of aluminum tube flaring, ensuring stable flaring of aluminum tubes of different lengths and preventing end cracking.
Smart Images

Figure CN224073182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aluminum tube processing equipment, and more specifically, to a device for flaring both ends of an aluminum tube. Background Technology
[0002] Due to cost constraints, the GIS unidirectional shell uses a small-diameter pipe. However, to meet the special discharge requirements, an intermediate shell needs to be added at the connection end of each shell section to connect the insulating basin and achieve the transition connection of the GIS. Therefore, the ends of the original cylinder need to be flared to meet the size requirements for connecting the insulating basin.
[0003] In the prior art, flaring equipment can usually only flare one end of the aluminum tube. For example, an aluminum tube flaring machine disclosed in patent publication number CN204321000U can effectively prevent the aluminum tube from shifting position during the flaring process by placing the aluminum tube to be flared on the machine frame and fixing the aluminum tube with a limiting mechanism and a positioning clamp. At the same time, the flaring mechanism is driven by a drive mechanism to perform the flaring operation on the aluminum tube.
[0004] The above-mentioned equipment has the following problems during use: it cannot adapt to the flaring of aluminum tubes of different lengths; it cannot flare both ends of the aluminum tube at the same time. After flaring one end of the aluminum tube, the aluminum tube needs to be disassembled and flipped before the other end can be flared, which is a cumbersome operation; at the same time, the equipment uses a direct punching method for flaring, which can easily cause cracks at the end of the aluminum tube. Summary of the Invention
[0005] The purpose of this invention is to provide a device for flaring both ends of aluminum tubes to improve flaring efficiency and quality.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a device for flaring both ends of an aluminum tube, including a conveying base, a clamping mechanism, and two sliding blocks;
[0007] The clamping mechanism is located at the middle of the upper surface of the conveying base, and is used to fix the aluminum tube.
[0008] The upper surface of the conveying base has sliding grooves on both sides of the clamping mechanism. A slider slides in the sliding grooves, and a threaded hole is opened in the middle of the slider. The bottom of the two slide blocks is fixedly connected to the upper end of the two sliders respectively. A lead screw motor is fixedly installed at both ends of the conveying base. The lead screw shaft of the lead screw motor is connected to the threaded hole of the corresponding slider.
[0009] The slide block is provided with a telescopic flaring rod and a telescopic drive rod on the side near the clamping mechanism. The telescopic drive rod is used to drive the telescopic flaring rod to rotate. A first push cylinder is fixedly installed on the outside of the slide block. The first push cylinder is used to control the extension and retraction of the telescopic flaring rod.
[0010] Preferably, the telescopic flaring rod includes a sleeve, a top post, and a flaring disc. The sleeve is fixedly installed on the inner surface of the slide block, the top post is inserted into the sleeve, the flaring disc is fixedly installed on the outer end of the top post, and the piston shaft of the first push cylinder is movably inserted into the sleeve.
[0011] Preferably, the telescopic drive rod includes a slide tube, a gear, and a drive shaft. A motor is fixedly installed on the outer surface of the slide block, and the output shaft of the motor is fixedly connected to the drive shaft. The slide tube is sleeved on the surface of the drive shaft, and the gear is fixedly installed on the outer end of the slide tube. A ring tooth groove is formed on the surface of the top column near the flared plate, and the gear meshes with the ring tooth groove.
[0012] Preferably, the clamping mechanism includes two clamping plates, one of which is fixedly installed at the middle position of the upper surface of the conveying base, and both ends of the two clamping plates are connected by a second push cylinder. A U-shaped groove is formed at the middle position of the opposite side surface of the two clamping plates.
[0013] Preferably, retaining rings are fixedly installed on both sides of the annular groove on the surface of the top column.
[0014] Preferably, the inner wall of the slide tube is provided with two limiting grooves in an axially symmetrical manner, the limiting grooves are arranged along the length direction of the slide tube, and the surface of the drive shaft is provided with two protruding ribs in an axially symmetrical manner, the protruding ribs being movably inserted into the limiting grooves at corresponding positions.
[0015] Compared with the prior art, the advantages of this utility model are:
[0016] This utility model can quickly fix the aluminum tube through the clamping mechanism to ensure the stability of the aluminum tube during flaring; start the two lead screw motors to make the two slides approach the two ends of the aluminum tube respectively, and then start the first push cylinder and motor. The first push cylinder will push the flaring plate into the open end of the aluminum tube, thereby adapting to the flaring work of the two ends of aluminum tubes of different lengths.
[0017] The telescopic drive rod can drive the telescopic flaring rod to rotate, realizing the flaring operation. Under the action of friction, the temperature of the aluminum tube opening end is increased, so that the aluminum tube opening end can be flared smoothly, improving flaring efficiency and quality. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a perspective view of a device for flaring both ends of an aluminum tube according to this utility model;
[0020] Figure 2 This is a cross-sectional view of a device for flaring both ends of an aluminum tube according to this utility model;
[0021] Figure 3 yes Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0022] Figure 4 This is a structural diagram of the telescopic flared rod and telescopic drive rod of this utility model.
[0023] In the diagram: 1. Conveying base; 11. Slide opening; 2. Slide seat; 3. Telescopic flaring rod; 31. Sleeve; 32. Top column; 33. Flaring plate; 34. Retaining ring; 35. Ring tooth groove; 4. Telescopic drive rod; 41. Slide tube; 42. Gear; 43. Drive shaft; 44. Limiting groove; 5. Motor; 6. First push cylinder; 7. Lead screw motor; 71. Slider; 8. Clamping mechanism; 81. Clamping plate; 82. U-shaped groove; 83. Second push cylinder. Detailed Implementation
[0024] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0025] See Figures 1-4 As shown, this utility model provides a device for flaring both ends of an aluminum tube, including a conveying base 1, a clamping mechanism 8, and two slides 2;
[0026] The clamping mechanism 8 is located at the middle of the upper surface of the conveying base 1, and the clamping mechanism 8 is used to fix the aluminum tube.
[0027] The upper surface of the conveying base 1 has a sliding groove 11 on both sides of the clamping mechanism 8. A slider 71 is slidably disposed in the sliding groove 11. A threaded hole is provided in the middle of the slider 71. The bottom of the two slide blocks 2 is fixedly connected to the upper end of the two sliders 71 respectively. A lead screw motor 7 is fixedly installed at both ends of the conveying base 1. The lead screw shaft of the lead screw motor 7 is connected to the threaded hole of the corresponding slider 71.
[0028] The slide block 2 is provided with a telescopic flaring rod 3 and a telescopic drive rod 4 on the side near the clamping mechanism 8. The telescopic drive rod 4 is used to drive the telescopic flaring rod 3 to rotate. A first push cylinder 6 is fixedly installed on the outside of the slide block 2. The first push cylinder 6 is used to control the extension and retraction of the telescopic flaring rod 3.
[0029] In this embodiment, the telescopic flaring rod 3 includes a sleeve 31, a top post 32, and a flaring disc 33. The sleeve 31 is fixedly installed on the inner surface of the slide block 2, the top post 32 is inserted into the sleeve 31, the flaring disc 33 is fixedly installed on the outer end of the top post 32, and the piston shaft of the first push cylinder 6 is movably inserted into the sleeve 31.
[0030] In this embodiment, the telescopic drive rod 4 includes a slide tube 41, a gear 42, and a drive shaft 43. A motor 5 is fixedly installed on the outer surface of the slide block 2, and the output shaft of the motor 5 is fixedly connected to the drive shaft 43. The slide tube 41 is sleeved on the surface of the drive shaft 43. The gear 42 is fixedly installed on the outer end of the slide tube 41. The top column 32 has an annular tooth groove 35 on its surface near the flared plate 33, and the gear 42 meshes with the annular tooth groove 35.
[0031] In this embodiment, the clamping mechanism 8 includes two clamping plates 81. One clamping plate 81 is fixedly installed at the middle position of the upper surface of the conveying base 1. Both ends of the two clamping plates 81 are connected by a second push cylinder 83. A U-shaped groove 82 is provided at the middle position of the opposite side surface of the two clamping plates 81. The aluminum tube is passed through the two clamping plates 81, and the middle part of the aluminum tube is located at the position of the clamping plate 81 as much as possible. The second push cylinder 83 is activated so that the two clamping plates 81 fix and clamp the aluminum tube through the U-shaped groove 82 to ensure the stability of the aluminum tube when it is flared.
[0032] Furthermore, to ensure that the slide tube 41 moves synchronously when the top column 32 moves, so that the rotation of the slide tube 41 can smoothly drive the top column 32 to rotate, in this embodiment, retaining rings 34 are fixedly installed on both sides of the ring tooth groove 35 on the surface of the top column 32, and the two retaining rings 34 can block the gear 42.
[0033] Furthermore, in order to ensure that the drive shaft 43 can smoothly drive the slide tube 41 to rotate, in this embodiment, the inner sidewall of the slide tube 41 is provided with two limiting grooves 44 in an axially symmetrical manner. The limiting grooves 44 are arranged along the length direction of the slide tube 41. The surface of the drive shaft 43 is provided with two protruding ribs in an axially symmetrical manner. The protruding ribs are movably inserted into the limiting grooves 44 at the corresponding positions.
[0034] The specific operating steps are as follows: Pass the aluminum tube through the two clamping plates 81, and try to position the middle of the aluminum tube at the position of the clamping plate 81. Start the second push cylinder 83 so that the two clamping plates 81 fix and clamp the aluminum tube through the U-shaped groove 82 to ensure the stability of the aluminum tube when it is flared.
[0035] Start the two lead screw motors 7 to bring the two slide blocks 2 close to the two ends of the aluminum tube respectively. Then start the first push cylinder 6 and the motor 5. The first push cylinder 6 will push the flaring plate 33 into the open end of the aluminum tube. At the same time, the motor 5 will drive the flaring plate 33 to rotate through the gear 42, realize the rotation flaring operation, and improve the flaring efficiency and quality.
[0036] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, the patent owner may make various modifications or alterations within the scope of the appended claims, as long as they do not exceed the protection scope described in the claims of the present invention, they shall all be within the protection scope of the present invention.
Claims
1. An apparatus for flaring the ends of aluminum tubes comprising a conveyor bed, characterized in that: Also include clamping mechanism and two sliding seat; The clamping mechanism is arranged in the middle of the upper surface of the conveying base, and the clamping mechanism is used for fixing the aluminum pipe; The upper surface of the conveying base is provided with a sliding groove on both sides of the clamping mechanism, and a sliding block is slidably arranged in the sliding groove. The side of the sliding seat close to the clamping mechanism is provided with an expandable flared rod and an expandable driving rod, the expandable driving rod is used to drive the expandable flared rod to rotate, and a first push oil cylinder is fixedly installed on the outer side of the sliding seat.
2. An apparatus for flaring the ends of aluminum pipe as defined in claim 1 wherein: The expandable flared rod comprises a sleeve, a top column and a flared disc, the sleeve is fixedly installed on the inner side surface of the sliding seat, the top column is inserted into the sleeve, and the flared disc is fixedly installed on the outer end of the top column.
3. An apparatus for flaring the ends of aluminum pipe as defined in claim 2 wherein: The expandable driving rod comprises a sliding pipe, a gear and a driving shaft, an electric motor is fixedly installed on the outer side surface of the sliding seat, the output shaft of the electric motor is fixedly connected with the driving shaft, the sliding pipe is sleeved on the surface of the driving shaft, the gear is fixedly installed on the outer end of the sliding pipe, and the surface of the top column close to the flared disc is provided with a ring tooth groove.
4. An apparatus for flaring the ends of aluminum tubing as defined in claim 1 wherein: The clamping mechanism comprises two clamping plates, one of which is fixedly installed on the middle of the upper surface of the conveying base, and the two clamping plates are connected by a second push oil cylinder.
5. An apparatus for flaring the ends of aluminum tubing as defined in claim 3 wherein: The surface of the top column is fixedly provided with a stop ring on both sides of the ring tooth groove.
6. An apparatus for flaring the ends of aluminum tubing as defined in claim 3 wherein: The inner side wall of the sliding pipe is axially symmetrically provided with two limiting grooves, the limiting grooves are arranged along the length direction of the sliding pipe, and the surface of the driving shaft is axially symmetrically fixedly provided with two convex ribs. The inner side wall of the sliding pipe is axially symmetrically provided with two limiting grooves, the limiting grooves are arranged along the length direction of the sliding pipe, and the surface of the driving shaft is axially symmetrically fixedly provided with two convex ribs.
Citation Information
Patent Citations
Aluminum pipe expanding machine
CN204321000U