Flaring die and flaring system

Abstract

The application discloses a flaring die and a flaring system, and relates to the technical field of metal processing, wherein the flaring die comprises a main body, a first flaring mechanism and a second flaring mechanism; the main body is provided with a first driving mechanism and a second driving mechanism; the first driving mechanism is in driving connection with the first flaring mechanism, and the first flaring mechanism is used for sleeving a pipe mouth of a target pipe; the first flaring mechanism is provided with a first rotation axis; the second flaring mechanism is movably switched between an initial position and a processing position on the main body, and the second driving mechanism is in driving connection with the second flaring mechanism; when the second flaring mechanism is in the processing position, the distance between the second flaring mechanism and the first rotation axis is smaller than the distance from the outer peripheral wall of the first flaring mechanism to the first rotation axis, and the first flaring mechanism rotates so that the pipe mouth of the target pipe is configured to be flared. The flaring die provided by the application can reduce the scratching between the target pipe and the flaring die, and the accuracy of the flaring die is improved.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, and in particular to a flaring mold and a flaring system. Background Technology

[0002] Flaring dies are used to change the diameter of the ends of metal pipes and are widely used in industries such as refrigeration, automotive, and hydraulic systems. Their main function is to use mechanical pressure to uniformly expand the pipe ends to achieve mating assembly with fittings. However, traditional flaring dies are prone to scraping and friction with the target pipe fitting during the expansion process, leading to surface damage or uneven flaring. This results in discrepancies between the flared dimensions and the expected target, thus affecting subsequent assembly results. Summary of the Invention

[0003] The main objective of this invention is to provide a flaring mold and a flaring system, with the aim of providing a flaring mold with high precision.

[0004] To achieve the above objectives, the present invention provides a flaring mold comprising: The main body has a control device and a first drive mechanism and a second drive mechanism electrically connected to the control device respectively; A first flaring mechanism includes a first flaring member, a first driving mechanism being drivenly connected to the first flaring member, and the first flaring member being used for fitting the end of a target pipe fitting; the first flaring member has a first rotation axis; and The second flaring mechanism includes a second flaring component, which is movable and switchable between an initial position and a processing position and is disposed on the main body. The second driving mechanism is drivenly connected to the second flaring component. The second driving mechanism is used to drive the second flared part to move and switch between the initial position and the processing position; when the second flared part is in the processing position, the distance between the second flared part and the first rotation axis is less than the distance from the outer peripheral wall of the first flared part to the first rotation axis. The control device is configured to, in response to a first flaring control command, control the second drive mechanism to move the second flaring member from the initial position to the processing position to perform preliminary flaring on the target pipe; and is further configured to, in response to a second flaring control command, control the first drive mechanism to rotate the first flaring member to drive the target pipe to rotate, wherein during the rotation of the target pipe, the opening of the target pipe is flared by the forces of the first flaring member and the second flaring member.

[0005] In one embodiment, the first flaring mechanism further includes a floating component movably connected to the first flaring member; the floating component is capable of floating and switching between a first position and a second position along the radial direction of the first flaring member; the first position corresponds to the position of the second flaring member in the processing position; During the process of the second flaring component moving from the initial position to the processing position, it drives the floating component to switch from the first position to the second position, so that the floating component floats and supports the target pipe on the first flaring component; The second flaring component moves from the processing position to the initial position, and the floating component resets from the second position to the first position.

[0006] In one embodiment, the first flared member includes: The first flaring wheel is used for fitting the end of the target pipe fitting, and the floating component is movably connected to the first flaring wheel; The driving wheel is coaxially mounted on the first flared wheel, the first driving mechanism is drivingly connected to the driving wheel, and the first rotation axis corresponds to the central axis of the driving wheel.

[0007] In one embodiment, the floating component includes: A floating wheel, which can float and switch between a first position and a second position along the radial direction of the driving wheel, for floating support of the target pipe on the first flared wheel; At least one elastic return element is provided, which is disposed through the floating wheel and the first flared wheel, and extends along the axial direction of the first flared wheel. The elastic return element is capable of coordinated movement in the radial and axial directions. During the process of the second flaring member moving from the initial position to the processing position, it drives the floating wheel to switch from the first position to the second position. The elastic return member is elastically compressed along the axial direction and converts the corresponding elastic force into a floating force provided to the floating wheel in the radial direction, so that the floating wheel floats and supports the target pipe on the first flaring wheel. The second flaring member moves from the processing position to the initial position, the elastic return member is released axially, and provides a floating force to the floating wheel radially, so that the floating wheel returns to the first position.

[0008] In one embodiment, the first flared wheel is connected to the outer periphery of the driving wheel, the floating wheel is arranged around the outer periphery of the driving wheel, and the floating wheel is opposite to the first flared wheel; multiple elastic return members are provided, and the multiple elastic return members are arranged at intervals on the first flared wheel along the outer periphery of the driving wheel.

[0009] In one embodiment, the elastic return element includes a return synchronization shaft, a limiting element, a first tapered sleeve, a second tapered sleeve, and an elastic element; The return-aligning synchronous shaft extends axially along the first flared wheel. The first flared wheel has a first connecting hole. The return-aligning synchronous shaft passes through the first connecting hole and is installed through the first flared wheel. There is a floating gap between the return-aligning synchronous shaft and the first connecting hole so that it can move back and forth radially along the drive wheel. The return-to-center synchronous shaft has a first section and a second section located on both sides of the first flared wheel. The first section is provided with the limiting member. The second section is fitted with a first conical sleeve, a second conical sleeve and an elastic member. The conical surfaces of the first conical sleeve and the second conical sleeve slide and fit together. One end of the elastic member is limited to the return-to-center synchronous shaft, and the other end of the elastic member abuts against the second conical sleeve. The floating wheel is provided with a second connecting hole, and the floating wheel is sleeved on the second conical sleeve through the second connecting hole. There is a floating gap between the second connecting hole of the floating wheel and the second conical sleeve so that it can move back and forth along the radial direction of the driving wheel. The first flared wheel has a third connecting hole, and the limiting member and the floating wheel are connected by a first connecting member passing through the third connecting hole. There is a floating gap between the third connecting hole and the first connecting member, so that the floating wheel and the limiting member can reciprocate radially along the driving wheel.

[0010] In one embodiment, when multiple elastic return members are provided, the limiting member among the multiple elastic return members is an integral stop wheel. The stop wheel protrudes from the outer periphery of the first flared wheel and is used to limit the target pipe after it is sleeved on the first flared wheel.

[0011] In one embodiment, the first flared wheel and the floating wheel are connected by a rotation limiting member; During the process of the first driving mechanism driving the first flaring wheel to rotate, the first flaring wheel drives the floating component to rotate synchronously through the rotation limiting member.

[0012] In one embodiment, the second flaring member includes a mating section and a compacting section connected to each other. The second flaring member is in the processing position. The compacting section is disposed corresponding to the first flaring member, and the mating section is disposed corresponding to the floating component. The distance between the compacting section and the first rotation axis is greater than the distance between the mating section and the first rotation axis.

[0013] In one embodiment, the second flared member is wheel-shaped, the compaction section and the mating section are coaxially arranged, and the diameter of the compaction section is larger than the diameter of the mating section.

[0014] In one embodiment, the second flaring mechanism includes a bracket, the second flaring member is disposed at one end of the bracket, and the second driving mechanism is drivenly connected to the other end of the bracket; The second driving mechanism is used to drive the support to move, so that the support drives the second flaring member to move and switch between the initial position and the processing position.

[0015] To address the above problems, the present invention also provides a flaring system, the flaring system comprising: Work platform; The flaring mold as described in any of the above descriptions is located on the working platform.

[0016] In one embodiment, the flaring system further includes at least two mounting brackets disposed on the working platform, and the number of flaring molds is at least two. The flaring molds are each correspondingly installed on the mounting bracket.

[0017] In one embodiment, the mounting bracket includes a slider that is slidably disposed on the working platform.

[0018] In one embodiment, the flaring system further includes at least one elastic device, at least one of the elastic devices being connected to one of the mounting brackets, the elastic axis of the elastic device being parallel to the line connecting the mounting bracket and another mounting bracket.

[0019] In summary, the coordinated operation of the main body, the first flaring mechanism, and the second flaring mechanism improves the accuracy of the flaring mold. The main body includes a control device and a first drive mechanism and a second drive mechanism electrically connected to it. The first flaring mechanism includes a rotatable first flaring component that rotates around a first rotation axis, used to fit the target pipe fitting and drive its rotation. The second flaring mechanism includes a second flaring component that can switch between an initial position and a processing position. In the processing position, it is close to the first rotation axis and applies flaring pressure to the pipe fitting. The control device responds to flaring commands by first controlling the second flaring component to move to the processing position for initial flaring, and then controlling the first flaring component to rotate, allowing the target pipe fitting to undergo uniform flaring during rotation, thereby improving flaring accuracy and quality. Thus, the flaring mold first positions and presses the target pipe fitting with the second flaring component, and then the rotating first flaring component drives the pipe fitting to rotate, resulting in more even force distribution during flaring, reducing scratches and deformation, and improving the accuracy of the flaring mold. Meanwhile, this flaring method, by positioning and pressing the pipe opening of the target pipe fitting and uniformly rotating and expanding it, can effectively avoid the problem of breakage caused by uneven stress in key parts. It is particularly suitable for some brittle materials or high-strength alloys, such as certain aluminum alloys and stainless steel. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of the first embodiment of the flaring mold provided by the present invention; Figure 2 This is a schematic diagram of the first embodiment of the flaring mold provided by the present invention; Figure 3 This is a schematic diagram of the second embodiment of the flaring mold provided by the present invention; Figure 4 This is a schematic diagram of the structure of the second embodiment of the flaring mold provided by the present invention; Figure 5 for Figure 4 A magnified view of a section at point A in the middle; Figure 6 This is a schematic diagram of the structure of the first embodiment of the first flaring mechanism provided by the present invention; Figure 7 This is a schematic diagram of the structure of the second embodiment of the first flaring mechanism provided by the present invention; Figure 8 for Figure 7 Another perspective view; Figure 9 for Figure 6 Another perspective view; Figure 10 for Figure 9 Sectional view of AA; Figure 11 for Figure 9 Sectional view of BB; Figure 12 for Figure 9 Another perspective view; Figure 13 for Figure 12 Sectional view of CC; Figure 14 This is a schematic diagram of the structure of the first embodiment of the flaring system provided by the present invention.

[0022] Explanation of icon numbers: 10. Flaring mold; 100. Main body; 110. First drive mechanism; 120. Second drive mechanism; 130. Control device; 200. First flaring mechanism; 210. First flaring component; 211. First flaring wheel; 2111. First connecting hole; 2112. Third connecting hole; 2113. First connecting component; 212. Drive wheel; 300. Second flaring mechanism; 310. Second flaring component; 311. Fitting section; 312. Compacting section; 320. Support; 400. Floating assembly; 410. Floating wheel; 411. Second connecting hole; 412. Fifth connecting hole; 420. Elastic return component; 421. Return synchronous shaft; 422. Limiting component; 4221. Fourth connecting hole; 423. First tapered sleeve; 424. Second tapered sleeve; 425. Elastic component; 430. Thrust wheel; 20. Flaring system; 30. Target pipe fitting.

[0023] The objectives, features, and advantages of this invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0026] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0027] Flaring dies are used in metal processing and are widely applied in various industries, including but not limited to refrigeration, automotive manufacturing, hydraulic systems, aerospace, and home appliances. The main function of a flaring die is to expand the end of a metal tube using mechanical force to accommodate different types of connectors or fittings, ensuring the sealing and stability of the processed tube after it is joined to the corresponding workpiece. In these applications, the flaring die must not only meet specific dimensional requirements but also ensure that the processed tube has a good appearance and structural strength to facilitate subsequent assembly processes. For example, in the refrigeration industry, the precision of the flaring die directly affects the efficiency and lifespan of the entire refrigeration system; while in automotive manufacturing, metal pipes used in braking systems need to be flared to ensure a safe and reliable connection with other components.

[0028] It is understandable that the above only outlines a few application scenarios for flaring dies, and does not cover all their application areas. With technological advancements and continuous process improvements, the application of flaring dies is expanding into more emerging fields. For example, in the new energy industry, stainless steel or aluminum alloy pipes in hydrogen energy storage tanks and fuel cell systems require flaring to ensure safety and sealing during gas transmission. Similarly, in the medical device industry, small-diameter metal catheters also require high-precision flaring dies to ensure reliable connections in sterile environments. Therefore, the design and manufacturing level of flaring dies directly affects the quality and lifespan of the final product, and their application areas can be expanded to various fields, demonstrating a wide range of application scenarios.

[0029] However, existing flaring dies suffer from low precision in the flaring process of metal pipes. One key reason is the tendency for the target pipe to rub against the flaring die. Understandably, this rubbing not only damages the material surface but can also cause dimensional deviations, thus affecting the quality of the final product. Since the manufacturing precision of existing flaring dies directly affects the flaring accuracy of the target pipe, any minute errors in the manufacturing process will be amplified, leading to a decrease in the precision of the flaring operation.

[0030] In an exemplary flaring tool, after the pipe fitting is clamped and fixed, the mold core is directly inserted into the pipe fitting for expansion. Although this method is simple in structure and convenient to operate, it has obvious drawbacks: because the mold core is in rigid contact with the inner wall of the pipe fitting, large frictional resistance is easily generated during the expansion process due to uneven fit clearance or insufficient lubrication, which can lead to tearing or corrugated deformation of the inner wall of the pipe fitting. In addition, this method has extremely high requirements for the straightness and surface hardness of the mold core. If the manufacturing precision is insufficient or the wear is severe, it is very easy to cause problems such as uneven flaring and unstable flaring angle, thereby affecting the connection sealing and structural strength, especially when processing thin-walled or high-precision pipe fittings.

[0031] To resolve the above issues, please refer to Figure 1 and Figure 2 This invention proposes a high-precision flaring mold 10. In one embodiment, the flaring mold 10 includes a main body 100, a first flaring mechanism 200, and a second flaring mechanism 300. The first flaring mechanism 200 and the second flaring mechanism 300 are disposed on the main body 100 and movably connected to the main body 100. The first flaring mechanism 200 can cooperate with the second flaring mechanism 300 to flare the target pipe fitting 30.

[0032] It is understandable that in refrigeration equipment, such as air conditioning systems, the target pipe fitting 30 can refer to copper, aluminum, or steel pipes used to connect various components (such as compressors, condensers, evaporators, etc.) for the transmission of refrigerant. Of course, the target pipe fitting 30 is not limited to components in refrigeration equipment, but also includes components in other application scenarios, which will not be elaborated here.

[0033] In this embodiment, the main body 100 has a control device 130 and a first drive mechanism 110 and a second drive mechanism 120 electrically connected to the control device 130. It is understood that the control device 130 is used to receive input signals, process data, and issue control commands to achieve drive control of the first drive mechanism 110 and the second drive mechanism 120. The first drive mechanism 110 and the second drive mechanism 120 are actuating components used to drive mechanical parts to perform corresponding actions, such as movement, rotation, clamping, or release, according to the control commands issued by the control device 130.

[0034] Optionally, the control device 130 can simultaneously or separately control the first drive mechanism 110 and the second drive mechanism 120 to perform drive operations.

[0035] Optionally, the control device 130 may consist of a programmable controller (such as a PLC), a microprocessor, a control circuit, a sensor interface, and an operation panel.

[0036] Optionally, the first drive mechanism 110 and the second drive mechanism 120 may include a motor, a cylinder, a hydraulic cylinder, a lead screw module, etc. When the first drive mechanism 110 and the second drive mechanism 120 are motors, they may be one or a combination of servo motors, stepper motors, and DC motors.

[0037] In this embodiment, the first flaring mechanism 200 includes a first flaring member 210, the first driving mechanism 110 is drivenly connected to the first flaring member 210, the first flaring member 210 is used for the pipe opening of the target pipe fitting 30 to be sleeved; the first flaring member 210 has a first rotation axis.

[0038] It is understandable that the first driving mechanism 110 can drive the first flaring part 210 to rotate along the first rotation axis. Its main purpose is to provide rotational power for the flaring of the target pipe 30, so that when the pipe end of the target pipe 30 is fitted onto the first flaring part 210, it can rotate around the first rotation axis under the drive of the first driving mechanism 110, thereby improving the uniformity of the flow of metal material during the flaring process, thus obtaining a more stable flaring shape and higher surface quality. It is especially suitable for flaring operations that require uniform force or are combined with rotational extrusion processes.

[0039] The first flaring component 210 is used to fit the end of the target pipe fitting 30. The shape and size of the first flaring component 210 can be adapted to the end of the target pipe fitting 30, or they may not be fully adapted. It is understood that in a complete flaring system 20, two flaring molds 10 can be configured, respectively engaging the two ends of the target pipe fitting 30 to achieve clamping and flaring of the pipe fitting. To enhance the stability and adaptability of the flaring process, one or both of the two flaring molds 10 can be equipped with an elastic device, allowing at least one of the two flaring molds 10 to move closer to the other, or to come together under the action of a driving mechanism, thereby achieving clamping and fixing of the target pipe fitting 30. Therefore, in some cases, even if the first flaring component 210 is not fully adapted to the end of the target pipe fitting 30, stable clamping and effective flaring can still be achieved through the cooperation of the flaring mold 10 at the other end and the elastic clamping structure, improving the versatility and applicability of the flaring mold 10.

[0040] It is important to note that the first axis of rotation is the central axis of the first flaring component 210. When the first flaring component 210 rotates, the center of rotation around which it revolves is its own geometric center line. This ensures that the flaring component experiences uniform force and runs smoothly during rotation, which helps improve the consistency and accuracy of the flaring process. For example, if the first flaring component 210 has a cylindrical structure, then its axis of rotation is the central axis of the cylinder; if it has a polygonal cross-section structure, then its geometric center of symmetry is still used as the rotation reference.

[0041] It should be noted that the shape of the first flared part 210 is not limited here; it can be circular or polygonal, depending on the cross-sectional shape of the actual target pipe fitting 30. This can meet the flaring requirements of different types of pipe fittings. For example, in the flaring of common air conditioning copper pipes, a circular cross-section first flared part 210 can be used to match the standard circular pipe end; while when dealing with irregularly shaped pipes (such as rectangular, elliptical, or hexagonal pipes), the first flared part 210 can also be designed as a matching polygonal or irregular structure to achieve good positioning and synchronous rotation.

[0042] In this embodiment, the second flaring mechanism 300 includes a second flaring member 310, which is movably switchable between an initial position and a processing position and is disposed on the main body 100. The second driving mechanism 120 is drivenly connected to the second flaring member 310. It can be understood that the second driving mechanism 120 can drive the second flaring member 310 to move and switch between the initial position and the processing position.

[0043] Please refer to Figure 1 and Figure 2 , Figure 1 and Figure 2 The second flared part 310 is in the initial position, which is usually a safe position in standby mode, facilitating the clamping of the target pipe fitting 30; please refer to Figure 3 and Figure 4 , Figure 3 and Figure 4 The second flaring component 310 is in the processing position, which is the position during the flaring operation. At this position, the second flaring component 310 cooperates with the first flaring mechanism 200 to apply an expansion force to the end of the target pipe fitting 30. The second drive mechanism 120 is driven by the second flaring component 310 and is used to control its precise movement between two positions. It can be understood that the second drive mechanism 120 enables automated control of the displacement process of the second flaring component 310, allowing it to quickly and smoothly reach the designated position and maintain good positioning accuracy and stability during the flaring process.

[0044] Optionally, the initial position corresponds to the relative position of the first flaring member 210 away from the second flaring member 310, and the processing position corresponds to the relative position of the first flaring member 210 close to and attached to the second flaring member 310. In the processing position, the first flaring member 210 and the second flaring member 310 can clamp the target workpiece to perform flaring work.

[0045] Please note that you should refer to [link / reference]. Figure 3 When the second flaring member 310 is in the processing position, the distance between the second flaring member 310 and the first rotation axis is less than the distance from the outer peripheral wall of the first flaring member 210 to the first rotation axis. That is, when the second flaring member 310 moves to the processing position for performing the flaring operation, the second flaring member 310 is closer to the first rotation axis (i.e., the central axis of the first flaring member 210) relative to the axis. Figure 3 The axis is indicated by dashed lines, and the outer surface of the first flared member 210 is farther from this axis in comparison. Furthermore, the second flared member 310 extends into the outer contour of the first flared member 210 during processing, thereby applying radial pressure to the target pipe fitting 30 fitted onto the first flared member 210, causing it to undergo plastic deformation and complete the flaring action. This helps ensure concentrated and uniform force during the flaring process, improving the flaring quality.

[0046] Optionally, please refer to Figures 1 to 3 When the second flaring component 310 moves to the processing position, the first flaring component 210 and the second flaring component 310 can be staggered. This "staggered arrangement" means that, even when the first flaring component 210 and the second flaring component 310 are axially parallel, their corresponding working surfaces or functional areas are not completely aligned, but rather offset to a certain extent. In other words, when the second flaring component 310 moves from its initial position to the processing position, the first flaring component 210 is not on its movement path. This helps to achieve phased force application during the flaring process, making the deformation of the target pipe 30 more uniform, reducing local stress concentration, and improving the flaring quality. Alternatively, the staggered arrangement can be omitted, and a step difference can be formed between the basic contact surfaces of the first flaring component 210 and the second flaring component 310, meaning there is a certain height difference between them in their installation height or working position. By using this step difference design, the target pipe fitting 30 can be guided to gradually deform under stress during the flaring process, thereby optimizing the flaring process path and enhancing the stability and consistency of the flaring process.

[0047] Optionally, the second flared part 310 and the first flared part 210 may have the same shape or different shapes.

[0048] In this embodiment, the control device 130 is configured to execute a first control action in response to a first flaring control command, controlling the second drive mechanism 120 to drive the second flaring member 310 to move from the initial position to the processing position, so as to perform preliminary flaring on the target pipe 30; and is also configured to execute a second control action in response to a second flaring control command, controlling the first drive mechanism 110 to drive the first flaring member 210 to rotate, so as to drive the target pipe 30 to rotate. During the rotation of the target pipe 30, the opening of the target pipe 30 is constructed into a flared state by the forces of the first flaring member 210 and the second flaring member 310.

[0049] In one feasible embodiment, the control device 130 is responsible for receiving and processing flaring instructions, which may include a first flaring control instruction and a second flaring control instruction, thereby coordinating the first drive mechanism 110 and the second drive mechanism 120 to complete the precise flaring operation on the target pipe fitting 30. Upon receiving the flaring instruction, the control device 130 first executes a first control action based on the first flaring control instruction, driving the second flaring member 310 from the initial position to the processing position by sending a signal to the second drive mechanism 120, ensuring that the second flaring member 310 can accurately approach the target pipe fitting 30 and apply initial pressure to it, thus initiating flaring preparation. Immediately afterwards, the control device 130 executes a second control action based on the second flaring control instruction, that is, controlling the first drive mechanism 110 to start, causing the first flaring member 210 to rotate around the first rotation axis, that is, its own central axis, while simultaneously driving the target pipe fitting 30, which is already fitted onto it, to rotate together. During the rotation of the target pipe fitting 30, the second flaring fitting 310 continues to apply radial pressure, causing the pipe end to gradually deform under the combined action of rotation and pressure, forming the required flared shape. Thus, the entire flaring process—first positioning and clamping, then rotational expansion—not only ensures the efficiency and accuracy of the flaring process but also optimizes material flow, reduces stress concentration, and thereby improves the quality and consistency of the final product.

[0050] It is understandable that the first flaring control command and the second flaring control command can be two sub-control commands of a single flaring command. Upon responding to the flaring command, the control device 130 can automatically execute the first flaring command and the second flaring command separately and sequentially, for example, executing the first flaring command first and then the second flaring command. Alternatively, the first flaring command and the second flaring command can be executed separately; for example, after the first flaring command is completed, the second flaring command can be selectively executed.

[0051] Optionally, the flaring command can be triggered manually by the operator or automatically after the target fitting is installed. Alternatively, one of the first flaring control command and the second flaring command can be triggered manually, while the other is triggered automatically.

[0052] Optionally, different flaring processes are used for the target workpiece with a circular cross-section and the target pipe fitting 30 with a polygonal cross-section. First, for the circular cross-section, during the flaring process, when the first flaring member 210 (e.g., a flaring wheel structure) rotates, the second flaring member 310 can also rotate synchronously with the first flaring member 210 to maintain a stable relative position between the two during the flaring process and avoid uneven force due to misalignment. Therefore, when the outer contour of the first flaring member 210 is circular, the contact boundary of the second flaring member 310 is also preferably circular to achieve good mating rotation and continuous flaring. For polygonal cross-sections, such as quadrilaterals, hexagons, and other irregularly shaped pipes, the flaring process requires processing each side or surface individually. Therefore, the control strategy differs. After the first flaring component 210 completes the initial flaring of a certain side (e.g., the first side of a quadrilateral), the second flaring component 310 first retracts from its processing position to its initial position. Then, as the first flaring component 210 rotates, its angle adjusts. When the target pipe 30 rotates to the next side to be processed (e.g., the second side), the second flaring component 310 moves back to the processing position to flare that side. This process is repeated, processing each side or surface sequentially until the entire pipe opening is fully flared.

[0053] In summary, the coordinated operation of the main body 100, the first flaring mechanism 200, and the second flaring mechanism 300 improves the accuracy of the flaring mold 10. The main body 100 includes a control device 130, and a first drive mechanism 110 and a second drive mechanism 120 electrically connected to it. The first flaring mechanism 200 includes a rotatable first flaring member 210 that rotates around a first rotation axis, used to fit the target pipe fitting 30 and drive its rotation. The second flaring mechanism 300 includes a second flaring member 310 that can switch between an initial position and a processing position. In the processing position, it is close to the first rotation axis and applies flaring pressure to the pipe fitting. Responding to flaring commands, the control device 130 first controls the second flaring member 310 to move to the processing position for initial flaring, and then controls the first flaring member 210 to rotate, allowing the target pipe fitting 30 to complete uniform flaring during rotation, thereby improving flaring accuracy and quality. Thus, the flaring mold 10 first positions and presses the target pipe fitting 30 through the second flaring member 310, and then the rotating first flaring member 210 drives the pipe fitting to rotate, making the flaring force more uniform, reducing scratches and deformation, and improving the accuracy of the flaring mold 10. At the same time, this flaring method, by positioning and pressing the pipe end of the target pipe fitting 30 and uniformly rotating and expanding it, can effectively avoid the problem of breakage caused by uneven force on critical parts, especially for some brittle materials or high-strength alloys (such as certain aluminum alloys, stainless steel, etc.), and has high applicability.

[0054] In one embodiment, please refer to Figure 1 and 4 The first flaring mechanism 200 further includes a floating component 400, which is movably connected to the first flaring member 210. The floating component 400 is capable of floating and switching between a first position and a second position along the radial direction of the first flaring member 210. The first position corresponds to the position of the second flaring member 310 in the processing position. During the process of the second flaring member 310 moving from the initial position to the processing position, the floating component 400 is driven to move from the first position to the second position, so that the floating component 400 floats and supports the target pipe 30 on the first flaring member 210. When the second flaring member 310 moves from the processing position to the initial position, the floating component 400 returns to the first position from the second position.

[0055] Understandably, please refer to Figure 1 and Figure 4 The first position refers to the default position of the floating component 400 in a free state; while the second position is the lower position after the floating component 400 is pressed by the pressure from the second flared part 310. Figure 1 This indicates that the floating component 400 is in the first position. Figure 4This indicates that the floating component 400 is in the second position. This allows the floating component 400 to flexibly adjust to different target pipe fittings 30 sizes and shapes, ensuring that the target pipe fitting 30 receives uniform and stable support during the flaring process, avoiding deformation or damage caused by uneven force. In one feasible embodiment, the movement of the floating component 400 is triggered by the movement of the second flaring member 310. When the second flaring member 310 moves from the initial position to the processing position, pressure is applied to the floating component 400, causing it to switch from the first position (i.e., the unpressurized high position) to the second position (i.e., the pressurized low position). This process provides additional support for the target pipe fitting 30 fitted onto the first flaring member 210, enhancing stability and positioning accuracy during the flaring process. Correspondingly, when the second flaring member 310 completes the flaring operation and returns to the initial position, the pressure on the floating component 400 is released, and the floating component 400 automatically resets to the first position, thus improving the adaptability of the flaring mold 10 and ensuring the accuracy of the flaring process.

[0056] Optionally, the floating component 400 is movably connected to the first flared member 210, meaning that the floating component 400 can float and switch between a first position and a second position along the radial direction of the first flared member 210. In other words, the first flared member 210 can move radially, and when the second flared member 310 moves between the initial position and the processing position, it also moves radially along the first flared member 210, thereby enabling the floating component 400 to perform floating operations.

[0057] Please note that you should refer to [link / reference]. Figure 4 and Figure 5The floating component 400 is moved from the first position to the second position, thereby floatingly supporting the target pipe 30 on the first flaring member 210. It can be understood that floating support refers to a dynamic support method in which the floating component 400, under the action of external force (such as the pressure applied by the second flaring member 310), contacts the inner wall of the target pipe 30 and provides support during its movement from the first position to the second position. Furthermore, during the flaring process, the target pipe 30 is fitted onto the first flaring member 210. When the second flaring member 310 moves towards the processing position, it pushes the floating component 400 to displace inward (depending on the structural design), allowing the supporting part of the floating component 400 to gently but effectively abut against the inner wall of the target pipe 30. This abutment is not rigidly fixed but has a certain elastic floating space, capable of adaptively adjusting according to changes in the size of the target pipe 30 or deformation during the flaring process, thereby avoiding pipe deformation due to excessive clamping or flaring deviation due to insufficient clamping. Thus, the floating component 400 can provide uniform, stable, and cushioned internal support for the fitting during the flaring process, preventing collapse, eccentricity, or surface damage under rotation and flaring stress. This is particularly suitable for thin-walled pipes, irregularly shaped pipes, or softer metal pipes. Figure 5 In the diagram, F1 represents the direction of the pressure exerted on the floating component 400 by the second flared part 310, and F2 represents the direction of the floating force of the floating component 400; the two are opposite.

[0058] In one feasible embodiment, before flaring begins, the floating assembly 400 is in a first position, and the second flaring member 310 is in an initial position. When the control device 130 receives the flaring command, the second drive mechanism 120 drives the second flaring member 310 to move from the initial position to the processing position. During this process, the second flaring member 310 applies pressure to the floating assembly 400, causing it to switch to a second position, thereby providing additional support for the target pipe fitting 30. Subsequently, the first drive mechanism 110 is activated, causing the first flaring member 210 to rotate, and driving the target pipe fitting 30 to rotate synchronously. During rotation, the second flaring member 310 continues to apply flaring pressure to achieve uniform flaring. After flaring is completed, the second flaring member 310 returns to the initial position, and the floating assembly 400 is also released from pressure and reset to the first position, ready for the next operation.

[0059] Optionally, in a structural design where the first flaring component 210 and the second flaring component 310 are staggered, the floating component 400 corresponds to the position of the second flaring component 310, meaning they are not misaligned in the axial direction. This can also be understood as the floating component 400 being positioned along the movement path of the second flaring component 310, so that its movement can be smoothly triggered as it moves to the processing position. This arrangement helps improve the linkage accuracy and support stability between components during the flaring process. In another embodiment, please refer to... Figure 4 and Figure 5 When a stepped structure is formed between the contact surfaces of the first flaring member 210 and the second flaring member 310, the second flaring member 310 is provided with a corresponding stepped portion to form a phased stress distribution with the target pipe fitting 30 during the flaring process. Simultaneously, the first flaring member 210 and the compacted floating component 400 also form matching stepped structures, allowing the three to work synergistically and participate in the forming process. In this way, layered pressure application and gradual flaring of the target pipe fitting 30 can be achieved, improving the uniformity of the flaring and the forming quality.

[0060] More importantly, the floating component 400 effectively reduces the swing range of the cylinder and maintains its stability during the flaring process. When the target pipe 30 is fitted onto the first flaring wheel 211 and rotates with it, the floating wheel 410, under the action of the elastic return element 420, remains in close contact with the inner wall of the pipe, forming dynamic support. Therefore, it can adaptively adjust the contact force according to the rotation state of the target pipe 30, and can also absorb the offset force through the synergistic effect between the floating wheel 410 and the elastic return element 420 when the flaring force is uneven or there is external disturbance, preventing excessive swing of the target pipe 30. Thus, the target pipe 30 is clamped and processed throughout the flaring process, improving the flaring quality and the reliability of the flaring mold 10.

[0061] In one embodiment, please refer to Figure 6 The first flared part 210 includes a first flared wheel 211 and a drive wheel 212.

[0062] In this embodiment, the first flaring wheel 211 is used for fitting the end of the target pipe fitting 30, and the floating component 400 is movably connected to the first flaring wheel 211. It is understood that the driving wheel 212 is used for power transmission; it can receive power input from the first drive mechanism 110 and transmit rotational motion to the first flaring wheel 211. The driving wheel 212 can be made of high-strength material, possessing good wear resistance and transmission efficiency. The driving wheel 212 and the first flaring wheel 211 are coaxially arranged and fixed together by mechanical connection methods (such as key connection, interference fit, etc.) to ensure synchronous rotation.

[0063] In this embodiment, the driving wheel 212 is coaxially mounted on the first flaring wheel 211, and the first driving mechanism 110 is drivenly connected to the driving wheel 212. The first rotation axis corresponds to the central axis of the driving wheel 212. It can be understood that the outer surface of the first flaring wheel 211 is designed for the pipe end of the target pipe fitting 30 to be fitted, and drives the pipe fitting to rotate together during rotation. Furthermore, the floating component 400 is movably connected to the first flaring wheel 211, and can switch positions according to the movement of the second flaring component 310 during the flaring process, thereby providing auxiliary support for the target pipe fitting 30 and preventing deformation or displacement due to uneven force during flaring. Therefore, the first flaring wheel 211 is not only a rotating carrier but also a component for achieving flaring.

[0064] It is understood that the first flaring member 210 includes a first flaring wheel 211 and a driving wheel 212. That is to say, in the above embodiment, the first flaring member 210 is a circular first flaring member 210, and both the first flaring wheel 211 and the driving wheel 212 are wheel-shaped.

[0065] It is understood that the first flaring component 210 is described as a whole in the above embodiments, but its actual structure can be composed of a first flaring wheel 211 and a drive wheel 212, both of which are wheel-shaped and have a clear functional division. The first flaring wheel 211 directly contacts the target pipe 30, allowing the pipe end of the target pipe 30 to be fitted, and drives the pipe to rotate during its rotation. Simultaneously, the floating component 400 is movably connected to the first flaring wheel 211. The drive wheel 212 receives power input from the first drive mechanism 110 and transmits the rotational motion to the first flaring wheel 211, thereby driving the entire flaring assembly to rotate.

[0066] In one embodiment, please refer to Figure 6The floating assembly 400 includes a floating wheel 410 and at least one elastic self-aligning member 420. The floating wheel 410 is capable of floating and switching between a first position and a second position along the radial direction of the drive wheel 212 to float and support the target pipe fitting 30 on the first flared wheel 211. The elastic self-aligning member 420 is disposed through the floating wheel 410 and the first flared wheel 211, and extends along the axial direction of the first flared wheel 211. The elastic self-aligning member 420 is capable of coordinated movement in both the radial and axial directions. During the process of the second flaring member 310 moving from the initial position to the processing position, the floating wheel 410 is driven to switch from the first position to the second position. The elastic return member 420 is elastically compressed along the axial direction and converts the corresponding elastic force into a floating force provided to the floating wheel 410 in the radial direction, so that the floating wheel 410 floats and supports the target pipe 30 on the first flaring wheel 211. When the second flaring member 310 moves from the processing position to the initial position, the elastic return member 420 is released along the axial direction and provides a floating force to the floating wheel 410 in the radial direction, so that the floating wheel 410 returns to the first position.

[0067] The elastic return element 420 is capable of coordinated radial and axial movement. This means that when the elastic return element 420 is displaced by the radial force from the floating wheel 410, it does not only move radially but also transmits the corresponding force axially, causing axial compression deformation. Correspondingly, when the externally applied radial pressure is released, the elastic return element 420 gradually returns to its original shape axially, simultaneously driving the floating wheel 410 to return to its initial position radially. This ensures that the floating wheel 410 can stably support the target pipe fitting 30 at any angle and automatically resets after flaring, improving the overall coordination of the floating assembly 400.

[0068] It is understandable that converting elastic force into a radial buoyancy force for the floating wheel 410 means that the elastic return member 420 stores elastic potential energy when compressed, and this stored elastic potential energy is converted into an elastic force opposite to the compression direction. Specifically, when the floating wheel 410 is subjected to pressure from the second flared member 310 and moves radially accordingly, the elastic return member 420 is axially compressed. At this time, a reaction force opposite to the aforementioned pressure is generated inside the elastic return member 420. This reaction force is the radial buoyancy force of the elastic return member 420, which pushes the floating wheel 410 to fit tightly against the inner wall of the target pipe 30, providing stable support.

[0069] It is understood that the function of the floating component 400 in the above embodiment can be achieved by the cooperation of the floating wheel 410 and the elastic return member 420. The floating wheel 410 is used to directly contact and support the target pipe fitting 30, while the elastic return member 420 provides the floating wheel 410 with the required floating force and restoring force through its own deformation, so that the entire floating process has dynamic responsiveness and automatic recovery capability.

[0070] It should be noted that the axial direction of the elastic return member 420 is parallel to the axis of the floating wheel 410 and the drive wheel 212, so that the elastic return member 420 can support and reset the floating wheel 410 without conflicting with the rotation of the first flared wheel 211.

[0071] In one feasible embodiment, when the floating wheel 410 switches from the first position to the second position under the pushing action of the second flared member 310, the elastic return member 420 is radially displaced along the driving wheel 212 and axially compressed. Since the elastic return member 420 has a certain deformation capacity, it stores elastic potential energy while being compressed, and through its own structural characteristics (explained in detail in subsequent embodiments), it converts part of the axial compressive force into a supporting force acting radially on the floating wheel 410, thereby pushing the floating wheel 410 tightly against the inner wall of the target pipe fitting 30, achieving dynamic floating support. During the process of the floating wheel 410 switching from the second position to the first position, as the second flared member 310 returns to its initial position, the external force applied to it gradually disappears. At this time, the elastic return member 420 begins to release the previously stored elastic potential energy. This release process is also mainly axial recovery, and through the same structural mechanism, it drives the floating wheel 410 to retract radially, restoring it to the first position in its initial state. This process not only enables the automatic reset of the floating component 400, but also ensures that the floating wheel 410 does not exert unnecessary clamping force on the target pipe fitting 30 when there is no flaring task, thus avoiding clamping interference or damage to the pipe fitting surface.

[0072] It is important to note that this embodiment uses axial compression force to achieve the deformation and reset of the elastic return element 420, which has a more significant advantage compared to the longitudinal compression force design. If a longitudinal compression method is used, i.e., the elastic element 425 is arranged radially along the floating wheel 410, then, in the case that the floating wheel 410 is circular, in order to ensure that the force is uniform in all directions during its rotation, multiple elastic elements 425 must be evenly distributed on the 360° circumference to ensure effective floating support and return function regardless of the angle at which the flare occurs. This design is not only structurally complex and difficult to assemble, but also has high requirements for spatial layout. However, the elastic return element 420 used in this embodiment is axially extended. When the floating wheel 410 is subjected to pressure from the second flare element 310, regardless of the direction of the pressure, it will cause the floating wheel 410 to move radially and drive the elastic return element 420 to generate axial compression. Since the axis of the elastic return element 420 is aligned with the rotation axis of the flaring wheel, its compression direction does not depend on the specific rotation angle of the floating wheel 410. Therefore, it is possible to apply a stable return force and buoyancy force to the floating wheel 410 at any angle. This not only simplifies the structural design and reduces the number of parts, but also effectively improves the adaptability and stability of the flaring die 10 at different flaring angles.

[0073] In one embodiment, please refer to Figure 6 and Figure 7 The first flared wheel 211 is connected to the outer periphery of the driving wheel 212, and the floating wheel 410 is arranged around the outer periphery of the driving wheel 212. The floating wheel 410 is opposite to the first flared wheel 211. Multiple elastic return members 420 are provided, and the multiple elastic return members 420 are arranged at intervals on the first flared wheel 211 along the outer periphery of the driving wheel 212.

[0074] To achieve stable floating and automatic reset of the floating wheel 410, multiple elastic return elements 420 are spaced apart on the first flaring wheel 211 along the outer periphery of the driving wheel 212. Each elastic return element 420 passes between the floating wheel 410 and the first flaring wheel 211 and extends axially. This ensures that the floating assembly 400 can effectively respond to the movement of the second flaring element 310 at any angle, and also ensures that the elastic return elements 420 are subjected to uniform force and move synchronously, improving the stability and reliability of the entire floating support system, thereby enhancing the accuracy and adaptability during the flaring process.

[0075] It should be noted that the number of elastic return parts 420 is not limited here, but depends on the actual required floating force. The greater the required floating force, the more elastic return parts 420 can be used.

[0076] It should be noted that since the floating wheel 410 is arranged around the outer periphery of the driving wheel 212, the corresponding structure can be as follows: the driving wheel 212 has a protruding section that extends outward from the surface of the first flared wheel 211, serving as a structure for the floating assembly 400 to cooperate and position with the driving wheel 212. Correspondingly, the floating wheel 410 has a clearance portion in the middle, the shape and size of which are designed to accommodate at least part of the protruding section, thereby realizing the flexible assembly and floating movement of the floating wheel 410 around the outer periphery of the driving wheel 212. Moreover, the diameter of the clearance portion is larger than the diameter of the protruding section, so that the floating wheel 410 can maintain a certain floating space relative to the driving wheel 212 when it is not subjected to external force; during the flaring process, when the second flaring member 310 pushes the floating wheel 410 inward and contacts the driving wheel 212, the floating wheel 410 is limited and stops moving. At this time, the elastic return member 420 is compressed and generates a floating force to maintain the stable support of the floating wheel 410 on the target pipe 30. The clearance portion can be a through hole provided in the middle of the floating wheel 410.

[0077] In one embodiment, please refer to Figures 7 to 13 The elastic return element 420 includes a return synchronous shaft 421, a limiting element 422, a first conical sleeve 423, a second conical sleeve 424, and an elastic element 425.

[0078] Please see Figure 10 The return-aligning synchronous shaft 421 extends axially along the first flared wheel 211. The first flared wheel 211 has a first connecting hole 2111. The return-aligning synchronous shaft 421 passes through the first connecting hole 2111 and is disposed within the first flared wheel 211. A floating gap exists between the return-aligning synchronous shaft 421 and the first connecting hole 2111, allowing it to reciprocate radially along the drive wheel 212. (See also...) Figure 7 and Figure 8 The return-to-center synchronous shaft 421 has a first section and a second section located on both sides of the first flared wheel 211. The first section is provided with the limiting member 422; the second section is fitted with the first conical sleeve 423, the second conical sleeve 424, and the elastic member 425. Please refer to [link / reference]. Figure 7 The conical surfaces of the first conical sleeve 423 and the second conical sleeve 424 slide and fit together. Please refer to [link / reference]. Figure 7 One end of the elastic element 425 is positioned on the return-to-center synchronous shaft 421, and the other end of the elastic element 425 abuts against the second tapered sleeve 424; please refer to Figure 8 , Figure 9 and Figure 11The floating wheel 410 is provided with a second connecting hole 411. The floating wheel 410 is sleeved on the second conical sleeve 424 through the second connecting hole 411. There is a floating gap between the second connecting hole 411 of the floating wheel 410 and the second conical sleeve 424, so that it can reciprocate radially along the driving wheel 212. Please refer to [link / reference]. Figure 7 , Figure 9 and Figure 10 The first flared wheel 211 has a third connecting hole 2112. The limiting member 422 is connected to the floating wheel 410 through a first connecting member 2113 passing through the third connecting hole 2112. There is a floating gap between the third connecting hole 2112 and the first connecting member 2113 so that the floating wheel 410 and the limiting member 422 can reciprocate radially along the driving wheel 212.

[0079] Understandably, please refer to Figure 7 Point B indicates a partially exploded view of the elastic return element 420. The first conical sleeve 423 is fixed to the first flared part 210, and the second conical sleeve 424 is slidably disposed on the return synchronization shaft 421. The conical surfaces of the first and second conical sleeves 423 and 424 are in contact with each other, forming a slidable fit structure. In one feasible embodiment, a concave conical space is formed in the first conical sleeve 423, and the cross-sectional area of ​​the concave conical space gradually increases towards the second conical sleeve 424; while the second conical sleeve 424 has a convex conical portion facing the first conical sleeve 423, and the cross-sectional area of ​​the convex conical portion gradually increases from one end near the first conical sleeve 423 to the other end, forming a standard conical structure. This design enables the two conical sleeves to achieve a stable and gapless sliding fit on the contact surface, thereby ensuring efficient force transmission and smooth transition of movement. When the floating assembly 400 is subjected to the force generated by the second flared part 310 pushing the floating wheel 410, the return synchronous shaft 421 moves radially, which in turn drives the second cone sleeve 424 to move radially. Thus, through the cooperation of the concave cone space and the convex cone part, the second cone sleeve 424 is squeezed out of the first cone sleeve 423, thereby compressing the elastic member 425. At this time, the elastic member 425 stores elastic potential energy, preparing for the subsequent reset action. Conversely, when the external force disappears and the flaring action is completed, the elastic member 425 releases energy, pushing the second cone sleeve 424 to slide in the opposite direction, so that it is brought close to the first cone sleeve 423 again, while driving the floating wheel 410 to reset to its initial position.

[0080] If you can still understand, please refer to Figure 11The diameter of the second connecting hole 411 on the floating wheel 410 is larger than that of the second conical sleeve 424. Since the second conical sleeve 424 is located on the first flared wheel 211, the floating wheel 410 needs to have a modified second connecting hole 411 to avoid the second conical sleeve 424 if it is to fit against the first flared wheel 211. Moreover, since the floating wheel 410 needs to move radially relative to the first flared wheel 211, the diameter of the second connecting hole 411 needs to be larger than that of the second conical sleeve 424, thereby creating a floating space.

[0081] Optionally, please refer to Figure 8 The limiting member 422 also has a fourth connecting hole 4221, and the floating wheel 410 is also provided with a fifth connecting hole 412. The first connecting member 2113 passes through the third connecting hole 2112 of the first flared wheel 211, and one end is connected to the fourth connecting hole 4221 and the other end is connected to the fifth connecting hole 412.

[0082] In one feasible embodiment, a specific process is given: during the process of the second flaring member 310 switching from the initial position to the processing position, the floating wheel 410 is driven to switch from the first position to the second position. At this time, since the floating wheel 410 and the limiting member 422 are fixed by the first connecting member 2113, the floating wheel 410 and the limiting member 422 can move synchronously. Since the diameter of the third connecting hole 2112 is larger than that of the first connecting member 2113, there is a floating gap between the third connecting hole 2112 and the first connecting member 2113. Therefore, the floating wheel 410 will drive the limiting member 422 to move together, while the position of the first flaring wheel 211 remains unchanged. Furthermore, when the limiting member 422 is driven, since one end of the return synchronous shaft 421 is fixed to the limiting member 422, and there is also a floating gap between the first connecting hole 2111 and the return synchronous shaft 421, the return synchronous shaft 421 will also move along with the limiting member 422. That is to say, the return synchronous shaft 421 will also move downward (radially) relative to the first flared wheel 211. Furthermore, when the return synchronous shaft 421 is driven downward, it will drive the second conical sleeve 424 connected to it to move together. At this time, the second conical sleeve 424 and the first conical sleeve 423 fixed on the first flared wheel 211 will slide relative to each other, and the conical surfaces of the two conical sleeves will partially separate from each other, increasing the distance between them, thereby compressing the elastic member 425 located behind it. During this process, the elastic member 425 stores elastic potential energy and converts the compressive force into a floating force acting radially on the floating wheel 410 through the conical sleeve structure, making it tightly adhere to the inner wall of the target pipe 30, achieving dynamic support.

[0083] In summary, during the process of the second flaring member 310 switching from the initial position to the processing position, it drives the floating wheel 410 to switch from the first position to the second position. The floating wheel 410 drives the limiting member 422 and the return synchronous shaft 421 to move radially along the driving wheel 212. The return synchronous shaft 421 drives the second cone sleeve 424 to move radially, so that the second cone sleeve 424 slides away from the first cone sleeve 423 and compresses the elastic member 425 axially. The elastic member 425 provides the floating force to the floating wheel 410 radially, so that the floating wheel 410 floats and supports the target pipe 30 on the first flaring wheel 211. During the process of the second flaring member 310 switching from the initial position to the processing position, the elastic member 425 is released, driving the second cone sleeve 424, so that the second cone sleeve 424 pushes the floating wheel 410 back to the first position.

[0084] As a reverse example, if the limiting element 422 is not provided, and instead the floating wheel 410 acts directly on the elastic return element 420—that is, under the push of the second flaring element 310, the floating wheel 410 directly presses against the second conical sleeve 424 in the elastic return element 420—this will cause structural problems in the component during the stress process. Specifically, due to the lack of guidance and synchronous control of the movement path by the limiting element 422, the second conical sleeve 424 will be directly compacted after being subjected to radial pressure, unable to make effective sliding displacement along the axial direction, thus hindering its conical surface engagement with the first conical sleeve 423. The compacted state causes the second conical sleeve 424 to lose its lateral floating ability, which in turn prevents the elastic element 425 from compressing and storing energy normally, and also prevents it from releasing the elastic force to drive the floating wheel 410 back to its original position after the flaring is completed. The final result is that the floating component 400 loses its due dynamic response capability and cannot provide stable inner wall support for the target pipe fitting 30.

[0085] In one embodiment, please refer to Figure 7 When multiple elastic return members 420 are provided, the limiting member 422 among the multiple elastic return members 420 is an integral stop wheel 430. The stop wheel 430 protrudes from the outer periphery of the first flared wheel 211. The stop wheel 430 is used to limit the target pipe 30 after it is sleeved on the first flared wheel 211.

[0086] It is understood that when multiple elastic return elements 420 are provided, the limiting element 422 between the multiple elastic return elements 420 can be designed as an integral stop wheel 430 structure. The stop wheel 430 extends along the outer periphery of the first flaring wheel 211 and protrudes from its surface, serving as a unified linkage component and limiting reference for the multiple floating components 400. When the target pipe 30 is sleeved on the first flaring wheel 211, the stop wheel 430 forms an axial limit on the end of the pipe through its protruding portion, preventing axial displacement or detachment during rotation or flaring, thereby improving the stability and safety of the flaring process.

[0087] Furthermore, since the guide roller 430 is connected to the return synchronization shaft 421 of multiple elastic return members 420, when the floating wheel 410 is pushed by the second flaring member 310, the guide roller 430 will also move synchronously, causing all elastic return members 420 to respond in a coordinated manner, achieving consistency in the actions of each floating component 400. This simplifies the structure, reduces the number of parts, and enhances the adaptability of the flaring mold 10 under complex working conditions and the overall reliability of its operation.

[0088] In one embodiment, the first flared wheel 211 and the floating wheel 410 are connected by a rotation limiting member; during the process of the first driving mechanism 110 driving the first flared wheel 211 to rotate, the first flared wheel 211 drives the floating component 400 to rotate synchronously through the rotation limiting member.

[0089] It is understood that the first flaring wheel 211 and the floating wheel 410 are connected by a rotation limiting member to ensure that they can maintain synchronous movement during rotation. Specifically, during the process of the first driving mechanism 110 driving the first flaring wheel 211 to rotate around its axis, the first flaring wheel 211 drives the floating component 400 to rotate together through the rotation limiting member, thereby ensuring that the floating wheel 410 is always in the correct angular position that matches the flaring operation.

[0090] It is also understood that, in the above embodiments, the rotation limiting member can specifically be the first connecting member 2113 mentioned above. The first connecting member 2113 fixes the floating wheel 410 to the limiting member 422 (or the stop wheel 430) and simultaneously passes through the third connecting hole 2112 on the first flared wheel 211. A certain floating gap is maintained between the third connecting hole 2112 and the first connecting member 2113, so that the floating wheel 410 can float radially when not subjected to external force, but in the rotation direction, it is linked with the first flared wheel 211 through the first connecting member 2113. Therefore, when the first flared wheel 211 rotates under the drive of the first driving mechanism 110, the rotational power can be transmitted to the floating assembly 400 through the cooperation between the third connecting hole 2112 and the first connecting member 2113, thereby driving the entire floating wheel 410 to rotate synchronously with the first flared wheel 211. This avoids problems such as offset, slippage, or support failure caused by the asynchronous movement of the floating wheel 410 and the flaring wheel, and significantly improves the stability and processing accuracy of the flaring process.

[0091] More importantly, the coordinated rotation of the floating components 400 avoids friction or wear on the inside of the target pipe fitting 30 when the floating components 400 do not rotate, effectively protecting the integrity of the inner wall of the pipe fitting, reducing the risk of damage during processing, and significantly improving the stability and processing accuracy of the flaring process.

[0092] In one embodiment, please refer to Figure 1 The second flared part 310 includes a mating section 311 and a compacting section 312 connected to each other. The second flared part 310 is in the processing position. The compacting section 312 is provided corresponding to the first flared part 210. The mating section 311 is provided corresponding to the floating component 400. The distance between the compacting section 312 and the first rotation axis is greater than the distance between the mating section 311 and the first rotation axis.

[0093] Understandably, when the second flaring component 310 is switched to the processing position, the distance between its compaction section 312 and the first rotation axis is greater than the distance between the mating section 311 and the first rotation axis. In other words, the compaction section 312 is further away from the rotation center than the mating section 311. This stepped or eccentric structural design allows the compaction section 312 to apply inward pressure to the outer edge of the target pipe fitting 30 during the flaring process, thus effectively compacting the pipe edge. It should be noted that the compaction section 312 also prevents the pipe edge from warping. In traditional flaring processes, uneven material stress or inconsistent plastic deformation can easily cause warping or flaring at the pipe edge, affecting subsequent sealing performance and assembly accuracy. By setting the compaction section 312, the pipe edge is compacted simultaneously with the flaring process, which not only helps improve the flatness of the flared surface but also effectively suppresses edge warping, improving the quality and consistency of the flaring.

[0094] It should be noted that the compaction section 312 is correspondingly set to the first flared part 210 in the processing position, that is, the compaction section 312 and the first flared part 210 overlap in the axial direction, that is, the two are aligned in the same axial position.

[0095] In a structure without the floating component 400, the compaction section 312 is positioned corresponding to the first flaring member 210 in the processing position, allowing the compaction section 312 to directly act on the outer edge of the pipe opening of the target pipe fitting 30. This ensures effective compaction and shaping of the pipe opening during the flaring process, preventing the pipe opening from warping or deforming. The mating section 311 is offset from the first flaring member 210 and does not overlap with it, thus working in conjunction with the compaction section 312 to generate a flaring tensile force on the target pipe fitting 30.

[0096] In this embodiment, the second flared part 310 is wheel-shaped, the compaction section 312 and the mating section 311 are coaxially arranged, and the diameter of the compaction section 312 is larger than the diameter of the mating section 311.

[0097] Understandably, the second flaring member 310 has an overall wheel-like structure, facilitating rotational assembly. The compaction section 312 and the mating section 311 are coaxially arranged, forming a unified stepped wheel structure. The diameter of the compaction section 312 is larger than that of the mating section 311, causing the compaction section 312 to be radially closer to the outer periphery of the first flaring member 210. This allows it to effectively contact and press against the edge of the target pipe fitting 30 during the flaring process, preventing it from warping or flipping. The mating section 311, on the other hand, mates with the floating component 400, acting as a downward flaring element during the flaring process.

[0098] In one embodiment, please refer to Figure 1The second flaring mechanism 300 includes a bracket 320, the second flaring member 310 is disposed at one end of the bracket 320, and the second driving mechanism 120 is drivenly connected to the other end of the bracket 320; the second driving mechanism 120 is used to drive the bracket 320 to move, so that the bracket 320 drives the second flaring member 310 to move and switch between the initial position and the processing position.

[0099] Optionally, the bracket 320 can be an L-shaped or straight rigid metal component made of high-strength aluminum alloy or steel, possessing good bending and torsional resistance. When the second drive mechanism 120 is a cylinder, the piston rod of the cylinder is hinged or fixedly connected to the tail of the bracket 320; when the cylinder extends or retracts, it drives the bracket 320 to swing around a certain rotation fulcrum (e.g., using a lever structure) or slide along a linear guide rail (e.g., using a slide table structure), thereby pushing the second flared part 310 from the initial position to the processing position, or from the processing position back to the initial position. When the second drive mechanism 120 is a rotary motor, the drive shaft of the rotary motor is connected to the bracket 320, driving the second flared part 310 to move through the bracket 320, so that the second flared part 310 moves between the initial position and the processing position.

[0100] It should be noted that the specific form of the bracket 320 is not limited here, and it can be adapted to the specific structure of the second drive mechanism 120.

[0101] To resolve the above issues, please refer to Figure 14 The present invention also provides a flaring system 20, which includes a working platform and a flaring mold 10. The specific structure of the flaring mold 10 is as described in the above embodiments. Since the flaring system 20 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0102] In this embodiment, the working platform is used to support and fix the flaring mold 10. The working platform may be equipped with a guide structure or slide rail to ensure the accuracy and stability of the flaring mold 10 during operation. Simultaneously, the working platform may also integrate auxiliary devices such as drive mechanisms and sensors to achieve automated control of the flaring process. The specific structure and components of the working platform are not limited here, but depend on the actual application requirements.

[0103] In one embodiment, the flaring system 20 further includes at least two mounting brackets, which are disposed on the working platform, and the number of flaring molds 10 is at least two; the flaring molds 10 are disposed one-to-one on the mounting brackets.

[0104] In this embodiment, the configuration of multiple mounting brackets and multiple flaring molds 10 enables the flaring system 20 to process multiple target pipe fittings 30 simultaneously, or to achieve automated operation modes such as continuous flaring and alternating flaring. For example, while one flaring mold 10 is performing flaring operations, another flaring mold 10 can perform loading or unloading operations, thereby significantly improving the production efficiency and utilization rate of the flaring system 20, reducing non-working time, and enhancing the continuous operation capability of the flaring system 20.

[0105] In one embodiment, the mounting bracket includes a slider that is slidably disposed on the working platform.

[0106] In this embodiment, the flaring mold 10 is mounted on a mounting bracket, which also includes a slider. A slide rail corresponding to the slider is provided on the work platform, allowing the mounting bracket to move on the work platform via the slider and slide rail. Thus, the flaring mold 10 is fixed to the upper end of the slider. The spacing between the flaring molds 10 is adjusted by the sliding of the slider on the work platform, thereby adapting to target pipe fittings 30 of different lengths or specifications. This enhances the versatility and flexibility of the flaring system 20, enabling it to adapt to various processing needs without changing the flaring mold 10, thereby improving production efficiency and equipment utilization.

[0107] In one embodiment, the flaring system 20 further includes at least one elastic device connected to one of the mounting brackets, the elastic axis of which is parallel to the line connecting the mounting bracket and another mounting bracket. This allows the elastic device to apply an axial force to the mounting bracket during the flaring process, thereby enabling dynamic adjustment of the relative position between the two mounting brackets.

[0108] In this embodiment, one or both of the mounting brackets are elastically connected to the working platform or to each other via an elastic device. When multiple flaring molds 10 are simultaneously performing flaring operations, differences in the material, wall thickness, or flaring resistance of the target pipe fitting 30 may lead to uneven stress on each flaring mold 10, thus affecting the flaring quality. At this time, the elastic device, through its own compression or rebound, allows the two mounting brackets to move towards each other, or for one to finely adjust its position relative to the other, thereby achieving pressure balance and coordinated movement among the flaring molds 10. In addition, the elastic device also has a buffering effect, absorbing impact loads at the beginning or end of the flaring process, reducing equipment vibration, and improving operational stability. At the same time, this structure also helps to compensate for positional deviations caused by assembly errors or thermal deformation, further ensuring the stability and consistency of the flaring process.

[0109] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A flaring mold (10), characterized in that, The flaring mold (10) includes: The main body (100) has a control device (130) and a first drive mechanism (110) and a second drive mechanism (120) electrically connected to the control device (130). The first flaring mechanism (200) includes a first flaring member (210), a first driving mechanism (110) being drivenly connected to the first flaring member (210), and the first flaring member (210) being used for fitting the end of a target pipe fitting (30); the first flaring member (210) has a first rotation axis; and The second flaring mechanism (300) includes a second flaring member (310) which is movable and switchable between an initial position and a processing position and is disposed on the main body (100). The second drive mechanism (120) is drivenly connected to the second flaring member (310). The second driving mechanism (120) is used to drive the second flared part (310) to move and switch between the initial position and the processing position; when the second flared part (310) is in the processing position, the distance between the second flared part (310) and the first rotation axis is less than the distance from the outer peripheral wall of the first flared part (210) to the first rotation axis; The control device (130) is configured to, in response to a first flaring control command, control the second drive mechanism (120) to drive the second flaring member (310) to move from the initial position to the processing position to perform preliminary flaring on the target pipe (30); and is also configured to, in response to a second flaring control command, control the first drive mechanism (110) to drive the first flaring member (210) to rotate to drive the target pipe (30) to rotate, wherein during the rotation of the target pipe (30), the opening of the target pipe (30) is flared by the forces of the first flaring member (210) and the second flaring member (310).

2. The flaring mold (10) as described in claim 1, characterized in that, The first flaring mechanism (200) further includes a floating component (400) which is movably connected to the first flaring member (210); the floating component (400) is capable of floating and switching between a first position and a second position along the radial direction of the first flaring member (210); the first position corresponds to the position of the second flaring member (310) in the processing position; During the process of the second flared part (310) moving from the initial position to the processing position, the floating component (400) is driven to switch from the first position to the second position, so that the floating component (400) floats to support the target pipe (30) on the first flared part (210). The second flaring component (310) moves from the processing position to the initial position, and the floating component (400) resets from the second position to the first position.

3. The flaring mold (10) as described in claim 2, characterized in that, The first flared part (210) includes: The first flaring wheel (211) is used for fitting the end of the target pipe fitting (30), and the floating component (400) is movably connected to the first flaring wheel (211). The driving wheel (212) is coaxially mounted on the first flared wheel (211). The first driving mechanism (110) is driven and connected to the driving wheel (212). The first rotation axis corresponds to the central axis of the driving wheel (212).

4. The flaring mold (10) as described in claim 3, characterized in that, The floating component (400) includes: A floating wheel (410) is capable of floating and switching between a first position and a second position along the radial direction of the drive wheel (212) to float and support the target pipe (30) on the first flared wheel (211). At least one elastic return member (420) is provided, which passes through the floating wheel (410) and the first flared wheel (211), and extends along the axial direction of the first flared wheel (211). The elastic return member (420) is capable of coordinating movement in the radial and axial directions. During the process of the second flaring member (310) moving from the initial position to the processing position, the floating wheel (410) is driven to switch from the first position to the second position. The elastic return member (420) is elastically compressed along the axial direction and converts the corresponding elastic force into a floating force provided to the floating wheel (410) in the radial direction, so that the floating wheel (410) floats and supports the target pipe (30) on the first flaring wheel (211). The second flaring member (310) moves from the processing position to the initial position, the elastic return member (420) is released axially and provides a floating force to the floating wheel (410) radially so that the floating wheel (410) returns to the first position.

5. The flaring mold (10) as described in claim 4, characterized in that, The first flared wheel (211) is connected to the outer periphery of the driving wheel (212), and the floating wheel (410) is arranged around the outer periphery of the driving wheel (212). The floating wheel (410) is opposite to the first flared wheel (211). Multiple elastic return members (420) are provided, and multiple elastic return members (420) are arranged at intervals on the first flared wheel (211) along the outer periphery of the driving wheel (212).

6. The flaring mold (10) as described in claim 4 or 5, characterized in that, The elastic return element (420) includes a return synchronous shaft (421), a limiting element (422), a first conical sleeve (423), a second conical sleeve (424), and an elastic element (425). The return-aligning synchronous shaft (421) extends axially along the first flared wheel (211). The first flared wheel (211) is provided with a first connecting hole (2111). The return-aligning synchronous shaft (421) passes through the first connecting hole (2111) and is disposed in the first flared wheel (2111). There is a floating gap between the return-aligning synchronous shaft (421) and the first connecting hole (2111) so that it can reciprocate radially along the drive wheel (212). The return-to-center synchronous shaft (421) has a first section and a second section located on both sides of the first flared wheel (211). The first section is provided with the limiting member (422). The second section is fitted with the first conical sleeve (423), the second conical sleeve (424) and the elastic member (425). The conical surface of the first conical sleeve (423) and the conical surface of the second conical sleeve (424) slide and fit together. One end of the elastic member (425) is limited to the return-to-center synchronous shaft (421), and the other end of the elastic member (425) abuts against the second conical sleeve (424). The floating wheel (410) is provided with a second connecting hole (411). The floating wheel (410) is sleeved on the second conical sleeve (424) through the second connecting hole (411). There is a floating gap between the second connecting hole (411) of the floating wheel (410) and the second conical sleeve (424) so ​​that it can reciprocate radially along the driving wheel (212). The first flared wheel (211) has a third connecting hole (2112). The limiting member (422) and the floating wheel (410) are connected by a first connecting member (2113) passing through the third connecting hole (2112). There is a floating gap between the third connecting hole (2112) and the first connecting member (2113) so that the floating wheel (410) and the limiting member (422) can reciprocate radially along the driving wheel (212).

7. The flaring mold (10) as described in claim 6, characterized in that, When multiple elastic return members (420) are provided, the limiting member (422) among the multiple elastic return members (420) is a whole stop wheel (430). The stop wheel (430) is set to protrude from the outer periphery of the first flared wheel (211). The stop wheel (430) is used to limit the target pipe (30) after it is sleeved on the first flared wheel (211).

8. The flaring mold (10) as described in claim 7, characterized in that, During the process of the first driving mechanism (110) driving the first flaring wheel (211) to rotate, the first flaring wheel (211) drives the floating component (400) to rotate synchronously through the first connecting member (2113).

9. The flaring mold (10) as described in claim 2, characterized in that, The second flared part (310) includes a mating section (311) and a compacting section (312) connected to each other. The second flared part (310) is in the processing position. The compacting section (312) is set to correspond to the first flared part (210). The mating section (311) is set to correspond to the floating component (400). The distance between the compacting section (312) and the first rotation axis is greater than the distance between the mating section (311) and the first rotation axis.

10. The flaring mold (10) as described in claim 9, characterized in that, The second flared part (310) is wheel-shaped, and the compaction section (312) and the mating section (311) are coaxially arranged. The diameter of the compaction section (312) is larger than the diameter of the mating section (311).

11. The flaring mold (10) as described in claim 1, characterized in that, The second flaring mechanism (300) includes a bracket (320), the second flaring member (310) is disposed at one end of the bracket (320), and the second driving mechanism (120) is drivenly connected to the other end of the bracket (320); The second drive mechanism (120) is used to drive the support (320) to move, so that the support (320) drives the second flaring member (310) to move and switch between the initial position and the processing position.

12. A flaring system (20), characterized in that, The flaring system (20) includes: Work platform; The flaring mold (10) as described in any one of claims 1 to 11 is disposed on the working platform.

13. The flaring system (20) as described in claim 12, characterized in that, The flaring system (20) also includes at least two mounting brackets, which are located on the working platform, and the number of flaring molds (10) is at least two. The flaring molds (10) are each corresponding to one of the mounting brackets.

14. The flaring system (20) as described in claim 13, characterized in that, The mounting bracket includes a slider, which is slidably mounted on the working platform.

15. The flaring system (20) as described in claim 14, characterized in that, The number of the flaring mold (10) and the number of the mounting brackets are both two. The flaring system (20) also includes at least one elastic device. At least one of the elastic devices is connected to one of the mounting brackets. The elastic device is used to enable the two mounting brackets to move toward each other by its own compression or rebound.

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