A metal pipe flaring machine
The automatic lubrication and convenient clamping design solves the problems of manual grease application and complicated clamping in existing metal pipe flaring machines, improving flaring quality and operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- KFSTOM (WUHAN) PRECISION MFG CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-05
AI Technical Summary
Existing metal pipe flaring machines require manual application of lubricant, which is complex and time-consuming. The clamping mechanism also requires disassembly or replacement of clamps, resulting in low efficiency.
A metal pipe flaring machine was designed, which uses an automatic lubrication component to apply grease by driving a piston plate with an electric push rod. Combined with the rotation of the ball bearing and the conical flaring head, automatic lubrication is achieved. The clamping component adopts a bidirectional screw-driven symmetrical clamping mechanism and a magnetic C-block clamping mold, which simplifies mold replacement.
It achieves automatic and uniform application of grease, improves the flaring quality and equipment continuity, and makes clamping operation simple and convenient, meeting the needs of precise control and rapid replacement.
Smart Images

Figure CN224322228U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flaring machine technology, specifically a metal pipe flaring machine. Background Technology
[0002] Metal pipes are widely used in air conditioning, refrigeration, automobiles, construction machinery, and many other fields. The flaring process at the ends of these metal pipes is a fundamental and crucial step. The quality of the flaring directly affects the pipe's sealing performance, connection reliability, and the stability of subsequent assembly processes. Existing flaring equipment typically operates manually or semi-automatically. This involves manually inserting a tapered flaring tip into the end of the metal pipe and then rotating it to plastically deform the material, thus forming the flared end.
[0003] In existing flaring machines, the conical flaring head needs to maintain continuous contact with the end of the metal pipe and apply rotational force during the flaring process. To avoid generating excessive friction and heat during flaring, the surface of the flaring head needs to be lubricated. Currently, the common practice is to manually apply grease to the flaring head or the inner wall of the metal pipe beforehand, which requires a significant amount of manpower. Furthermore, the clamping mechanism of existing flaring machines typically uses a fixed structure, requiring disassembly and reassembly of the clamping mold or replacement of the entire clamp when clamping pipes of different diameters, making the operation complex and time-consuming.
[0004] Therefore, this utility model provides a metal pipe flaring machine to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a metal pipe flaring machine, which solves the aforementioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A metal pipe flaring machine includes a base plate, wherein support legs are symmetrically fixed to the bottom wall of the base plate, and further includes:
[0008] A flaring seat, wherein a tapered flaring head is rotatably mounted on one side of the flaring seat, and a motor for driving the tapered flaring head to rotate is installed inside the flaring seat, and the bottom end of the flaring seat is mounted on the top wall of the base plate via a translation component;
[0009] A lubrication assembly is installed above the conical flared opening and is fixed to the top wall of the base plate by an L-shaped plate.
[0010] A clamping assembly is fixed to the right end of the base plate and is used to clamp the metal tube to be flared.
[0011] Preferably, the clamping assembly includes a mounting housing, and a bidirectional screw is rotatably mounted inside the mounting housing;
[0012] One end of the bidirectional screw passes through the side wall of the mounting housing via a bearing and is fixed with a handwheel. Screw blocks are screwed onto both sides of the bidirectional screw.
[0013] The screw blocks are slidably installed between the inner walls of the mounting shell, and each screw block has a connecting rod rotatably connected to its top wall;
[0014] A clamping mechanism is installed between the two connecting rods.
[0015] Preferably, the top wall of the mounting housing has a strip-shaped through groove corresponding to the position of the connecting rod, and the connecting rod is slidably installed in the corresponding strip-shaped through groove.
[0016] Preferably, the clamping mechanism includes two symmetrically arranged C-shaped blocks and a clamping mold mounted on the C-shaped blocks. The bottom end of the C-shaped block is rotatably connected to the top wall of the mounting shell, the outer wall of the C-shaped block is rotatably connected to the top end of the connecting rod, and the inner wall of the C-shaped block is provided with an arc-shaped mounting groove.
[0017] The arc-shaped mounting groove has a slot, and a magnet is fixed in the slot;
[0018] The outer wall of the clamping mold is fixed with iron blocks.
[0019] Preferably, the translation component includes a U-shaped seat, the U-shaped seat is fixed to the top wall of the base plate, a lead screw is rotatably installed between the inner walls of the U-shaped seat, and a drive motor is fixed to the outer wall of the U-shaped seat;
[0020] A screw nut is screwed onto the screw;
[0021] A connecting plate is fixed to the top of the lead screw nut;
[0022] The top wall of the connecting plate is fixedly connected to the bottom wall of the flared seat, and two sliders are symmetrically fixed to the bottom wall of the connecting plate;
[0023] The top wall of the U-shaped seat has two parallel slide rails symmetrically fixed, and the slider is slidably mounted on the corresponding slide rails.
[0024] The drive motor's power shaft passes through the side wall of the U-shaped seat via a bearing and is fixedly connected to one end of the lead screw.
[0025] Preferably, the drive motor is a servo motor or a stepper motor.
[0026] Preferably, the lubrication assembly includes an electric actuator and a storage box. The electric actuator is fixed to the top wall of the L-shaped plate, and the movable end of the bottom of the electric actuator passes through the top wall of the L-shaped plate and is fixed with a connecting post.
[0027] The bottom end of the connecting column penetrates the top wall of the storage box and is fixedly connected to an inclined piston plate;
[0028] The piston plate is slidably installed between the inner walls of the storage box;
[0029] One side of the bottom wall of the storage box is inclined and has bristles fixed at the bottom, while the other side of the bottom wall of the storage box is arc-shaped and has a ball bearing installed at the bottom.
[0030] Preferably, a feeding port is provided on one side of the storage box, a threaded cap is screwed onto the storage box at the position corresponding to the feeding port, grease is filled between the bottom wall of the piston plate and the bottom wall of the inner cavity of the storage box, and several through holes are provided on the inclined wall at the bottom of the storage box.
[0031] Beneficial effects
[0032] This utility model provides a metal pipe flaring machine. Compared with the prior art, it has the following advantages:
[0033] (1) The metal pipe flaring machine is equipped with a lubrication component. The piston plate is driven by an electric push rod to squeeze the grease, which is then evenly applied to the surface of the conical flaring head by the brush bristles. The ball bearings rotate in close contact with the conical structure to achieve automatic grease supply, avoiding the problems of low efficiency and uneven distribution caused by manual application, and improving the flaring quality and the continuity of equipment operation.
[0034] (2) The metal pipe flaring machine uses a servo motor to drive the lead screw to move the flaring seat. Combined with the slider guide structure, it ensures that the flaring head moves smoothly and has high repeatability during the flaring process, achieving precise control of the flaring depth and position, and meeting the strict requirements for pipe processing accuracy. At the same time, the clamping component adopts a bidirectional screw-driven symmetrical clamping mechanism, combined with a magnetic C-block clamping structure, which makes the installation and disassembly of the clamping mold simple and quick, and can be replaced without the aid of tools. The operation is simple and convenient. Attached Figure Description
[0035] Figure 1 This is a perspective view of the external structure of this utility model;
[0036] Figure 2 This is a three-dimensional view of the translation component structure of this utility model;
[0037] Figure 3 This is a three-dimensional structural view of the lubrication component of this utility model;
[0038] Figure 4 This is a three-dimensional view of the clamping mechanism structure of this utility model.
[0039] In the diagram: 1. Base plate; 2. Support leg; 3. Translation assembly; 31. U-shaped seat; 32. Lead screw; 33. Lead screw nut; 34. Drive motor; 35. Connecting plate; 36. Slider; 37. Slide rail; 4. Flared seat; 5. Conical flared head; 6. L-shaped plate; 7. Lubrication assembly; 71. Electric actuator; 72. Storage box; 73. Connecting column; 74. Piston plate; 75. Brush bristles; 76. Ball bearing; 77. Feed port; 78. Threaded cap; 8. Mounting shell; 9. Bidirectional screw; 10. Screw block; 11. Handwheel; 12. Connecting rod; 13. Clamping mechanism; 131. C-shaped block; 132. Arc-shaped mounting groove; 133. Slot; 134. Clamping mold; 135. Clamping block. Detailed Implementation
[0040] 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.
[0041] Example 1:
[0042] Please see Figure 1 A metal pipe flaring machine includes a base plate 1, with support legs 2 symmetrically fixed to the bottom wall of the base plate 1, and further includes:
[0043] A flaring seat 4 has a conical flaring head 5 rotatably mounted on one side. The flaring seat 4 is equipped with a motor that drives the conical flaring head 5 to rotate. The bottom end of the flaring seat 4 is mounted on the top wall of the base plate 1 via a translation component 3.
[0044] Lubrication component 7 is installed above the conical expansion head 5 and is fixed to the top wall of the base plate 1 by an L-shaped plate 6.
[0045] The clamping assembly is fixed to the right end of the base plate 1 and is used to clamp the metal tube to be flared.
[0046] In this embodiment, a motor installed in the flaring seat 4 drives the conical flaring head 5 to rotate, and the flaring head 5 is moved by the translation component 3 to realize the flaring operation of the metal tube. The lubrication component 7 can automatically apply grease to the conical flaring head 5 without manual application. The clamping component can clamp and fix the metal tube to be flared, and at the same time, it can facilitate the replacement of the clamping mold, making the operation simple and convenient.
[0047] Example 2:
[0048] Please see Figure 1-4This embodiment provides a technical solution based on Embodiment 1:
[0049] The clamping assembly includes a mounting housing 8, and a bidirectional screw 9 is rotatably mounted inside the mounting housing 8;
[0050] One end of the bidirectional screw 9 passes through the side wall of the mounting housing 8 via a bearing and is fixed with a handwheel 11. Screw blocks 10 are screwed onto the rods on both sides of the bidirectional screw 9.
[0051] The screw blocks 10 are slidably installed between the inner walls of the mounting shell 8, and the top walls of the screw blocks 10 are rotatably connected to the connecting rods 12;
[0052] A clamping mechanism 13 is installed between the two connecting rods 12.
[0053] A strip-shaped through groove is provided on the top wall of the mounting shell 8 at the position corresponding to the connecting rod 12, and the connecting rod 12 is slidably installed in the corresponding strip-shaped through groove.
[0054] The clamping mechanism 13 includes two symmetrically arranged C-shaped blocks 131 and a clamping mold 134 mounted on the C-shaped blocks 131. The bottom end of the C-shaped blocks 131 is rotatably connected to the top wall of the mounting shell 8, the outer wall of the C-shaped blocks 131 is rotatably connected to the top end of the connecting rod 12, and the inner wall of the C-shaped blocks 131 is provided with an arc-shaped mounting groove 132.
[0055] A slot 133 is provided in the arc-shaped mounting groove 132, and a magnet is fixed in the slot 133;
[0056] Iron clips 135 are fixed to the outer wall of the clamping mold 134.
[0057] In this embodiment, the clamping assembly can clamp and fix the metal tube to be flared, and it can also facilitate the replacement of the clamping mold, making the operation simple and convenient. When clamping and fixing the metal tube, firstly, select a suitable clamping mold 134 according to actual needs, and install the clamping mold 134 on the C-shaped block 131. During installation, directly insert the locking block 135 on the clamping mold 134 into the corresponding locking slot 133. The iron locking block 135 is attracted by the magnet in the locking slot 133, thereby fixing the clamping mold 134 in the arc-shaped mounting groove 132. Then, turn the handwheel 11, which drives the bidirectional screw 9 to rotate. The bidirectional screw 9 drives the two screw blocks 10 to move towards each other. During the movement of the screw blocks 10, the two C-shaped blocks 131 move closer to each other through the connecting rod 12 until the two C-shaped blocks 131 merge, thus completing the clamping and fixing of the metal tube.
[0058] The translation component 3 includes a U-shaped seat 31, which is fixed to the top wall of the base plate 1. A lead screw 32 is rotatably installed between the inner walls of the U-shaped seat 31, and a drive motor 34 is fixed to the outer wall of the U-shaped seat 31.
[0059] A lead screw nut 33 is screwed onto the lead screw 32;
[0060] A connecting plate 35 is fixed to the top of the lead screw nut 33;
[0061] The top wall of the connecting plate 35 is fixedly connected to the bottom wall of the flared seat 4, and two sliders 36 are symmetrically fixed to the bottom wall of the connecting plate 35.
[0062] Two parallel slide rails 37 are symmetrically fixed to the top wall of the U-shaped seat 31, and the slider 36 is slidably installed on the corresponding slide rail 37.
[0063] The drive shaft of the drive motor 34 passes through the side wall of the U-shaped seat 31 via a bearing and is fixedly connected to one end of the lead screw 32.
[0064] The drive motor 34 is either a servo motor or a stepper motor.
[0065] In this embodiment, the translation component 3 is used to drive the flaring seat 4 to move back and forth, thereby driving the tapered flaring head 5 to flare the end of the metal tube. When the translation component 3 is working, it controls the drive motor 34 to work. The drive motor 34 drives the lead screw 32 to rotate. The lead screw 32 drives the connecting plate 35 to move through the lead screw nut 33, which in turn drives the flaring seat 4 to move. The slide rail 37, together with the slider 36, can guide the movement of the connecting plate 35. The drive motor 34 is a servo motor or a stepper motor to ensure that the lead screw 32 can rotate in both directions.
[0066] The lubrication assembly 7 includes an electric actuator 71 and a storage box 72. The electric actuator 71 is fixed on the top wall of the L-shaped plate 6. The movable end of the bottom of the electric actuator 71 passes through the top wall of the L-shaped plate 6 and is fixed with a connecting post 73.
[0067] The bottom end of the connecting column 73 penetrates the top wall of the storage box 72 and is fixedly connected to an inclined piston plate 74;
[0068] Piston plate 74 is slidably mounted between the inner walls of storage box 72;
[0069] One side of the bottom wall of the storage box 72 is inclined and a brush bristle 75 is fixed at the bottom. The other side of the bottom wall of the storage box 72 is arc-shaped and a ball bearing 76 is rotatably installed at the bottom.
[0070] A feeding port 77 is provided on one side of the storage box 72. A threaded cover 78 is screwed onto the storage box 72 at the position corresponding to the feeding port 77. Lubricating grease is filled between the bottom wall of the piston plate 74 and the bottom wall of the inner cavity of the storage box 72. Several through holes are provided on the inclined wall at the bottom of the storage box 72.
[0071] In this embodiment, the lubrication component 7 enables automatic application of grease to the conical flaring head 5, eliminating the need for manual application and simplifying the operation. During the flaring operation, the translation component 3 first moves the conical flaring head 5 below the storage box 72, aligning the arc-shaped bottom of the storage box 72 with the cylindrical portion of the conical flaring head 5. Then, the electric push rod 71 extends until the ball bearing 76 adheres to the cylindrical surface of the conical flaring head 5. The motor inside the flaring seat 4 then rotates the conical flaring head 5 at low speed. The electric push rod 71 continues to extend, preventing the storage box 72 from moving further downwards due to the obstruction of the conical flaring head 5. The piston plate 74, under the action of the electric push rod 71, forces the grease from the storage box 72 through the through-hole onto the brush bristles 75, thus applying grease to the conical flaring head 5. The feeding port 77 allows for convenient replenishment of grease into the storage box 72, and the threaded cap 78 seals the feeding port 77.
[0072] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0073] 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 process, method, article, or apparatus.
[0074] 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 metal pipe flaring machine, comprising a base plate (1), wherein support legs (2) are symmetrically fixed to the bottom wall of the base plate (1), characterized in that, Also includes: A flaring seat (4) is provided with a conical flaring head (5) rotatably mounted on one side of the flaring seat (4). A motor for driving the conical flaring head (5) to rotate is installed inside the flaring seat (4). The bottom end of the flaring seat (4) is mounted on the top wall of the base plate (1) through a translation component (3). Lubrication assembly (7), the lubrication assembly (7) is installed above the conical expansion head (5), and the lubrication assembly (7) is fixed to the top wall of the base plate (1) by the provided L-shaped plate (6); A clamping assembly is fixed to the right end of the base plate (1) and is used to clamp the metal tube to be flared.
2. The metal pipe flaring machine according to claim 1, characterized in that, The clamping assembly includes a mounting housing (8), and a bidirectional screw (9) is rotatably mounted inside the mounting housing (8). One end of the bidirectional screw (9) passes through the side wall of the mounting housing (8) through a bearing and is fixed with a handwheel (11). Screw blocks (10) are screwed onto the rods on both sides of the bidirectional screw (9). The screw blocks (10) are slidably installed between the inner walls of the mounting shell (8), and the top walls of the screw blocks (10) are rotatably connected to connecting rods (12). A clamping mechanism (13) is installed between the two connecting rods (12).
3. A metal pipe flaring machine according to claim 2, characterized in that, The top wall of the mounting shell (8) has a strip-shaped through groove corresponding to the position of the connecting rod (12), and the connecting rod (12) is slidably installed in the corresponding strip-shaped through groove.
4. A metal pipe flaring machine according to claim 2, characterized in that, The clamping mechanism (13) includes two symmetrically arranged C-shaped blocks (131) and a clamping mold (134) mounted on the C-shaped blocks (131). The bottom end of the C-shaped blocks (131) is rotatably connected to the top wall of the mounting shell (8). The outer wall of the C-shaped blocks (131) is rotatably connected to the top end of the connecting rod (12). The inner wall of the C-shaped blocks (131) is provided with an arc-shaped mounting groove (132). A slot (133) is provided in the arc-shaped mounting groove (132), and a magnet is fixed in the slot (133); The outer wall of the clamping mold (134) is fixed with an iron clamping block (135).
5. A metal pipe flaring machine according to claim 1, characterized in that, The translation component (3) includes a U-shaped seat (31), which is fixed on the top wall of the base plate (1). A lead screw (32) is rotatably installed between the inner walls of the U-shaped seat (31), and a drive motor (34) is fixed on the outer wall of the U-shaped seat (31). A screw nut (33) is screwed onto the lead screw (32). The top end of the lead screw nut (33) is fixed with a connecting plate (35); The top wall of the connecting plate (35) is fixedly connected to the bottom wall of the flared seat (4), and two sliders (36) are symmetrically fixed to the bottom wall of the connecting plate (35). The top wall of the U-shaped seat (31) is symmetrically fixed with two parallel slide rails (37), and the slider (36) is slidably installed on the corresponding slide rails (37); The power shaft of the drive motor (34) passes through the side wall of the U-shaped seat (31) via a bearing and is fixedly connected to one end of the lead screw (32).
6. A metal pipe flaring machine according to claim 5, characterized in that, The drive motor (34) is a servo motor or a stepper motor.
7. A metal pipe flaring machine according to claim 1, characterized in that, The lubrication assembly (7) includes an electric actuator (71) and a storage box (72). The electric actuator (71) is fixed on the top wall of the L-shaped plate (6). The movable end of the bottom of the electric actuator (71) passes through the top wall of the L-shaped plate (6) and is fixed with a connecting column (73). The bottom end of the connecting column (73) penetrates the top wall of the storage box (72) and is fixedly connected to an inclined piston plate (74). The piston plate (74) is slidably mounted between the inner walls of the storage box (72); The bottom wall of the storage box (72) is inclined on one side and has bristles (75) fixed at the bottom. The bottom wall of the storage box (72) is arc-shaped and has a ball bearing (76) rotatably mounted at the bottom.
8. A metal pipe flaring machine according to claim 7, characterized in that, The storage box (72) has a feeding port (77) on one side. The storage box (72) is screwed with a threaded cap (78) at the position corresponding to the feeding port (77). The bottom wall of the piston plate (74) and the bottom wall of the inner cavity of the storage box (72) are filled with grease. Several through holes are opened on the inclined wall at the bottom of the storage box (72).