Titanium alloy short tube flaring device

Abstract

This application relates to a flaring device for titanium alloy short tubes, including a base, a flaring assembly, a stabilizing assembly, and a positioning assembly. The stabilizing assembly is installed on the upper end of the base, and the flaring assembly is installed on the other end of the base. The flaring assembly and the stabilizing assembly are arranged opposite each other, that is, the flaring cone of the flaring assembly points towards the stabilizing assembly. The stabilizing assembly includes a three-jaw positioning chuck and a central positioning rod, and the center line of the three-jaw positioning chuck coincides with the center line of the flaring cone. Compared with the prior art, the beneficial effect of this utility model is that when flaring the titanium alloy tube, the flaring cone applies a pushing force to the end of the titanium alloy tube, causing the end of the flaring cone to gradually enter the port of the titanium alloy tube. As the port of the titanium alloy tube gradually expands, the outer wall of the titanium alloy tube will contact the inner end of the limiting rod. At this time, the end of the flaring cone cannot continue to move into the titanium alloy tube, thereby improving the accuracy of the flaring process at the port of the titanium alloy tube.

Description

Technical Field

[0001] This application relates to a flaring device, and more particularly to a flaring device for a titanium alloy short tube. Background Technology

[0002] Titanium alloys are widely used in various fields due to their high strength, good corrosion resistance, and high heat resistance. Titanium alloy tubes, in particular, are widely used because of their light weight, high strength, and superior mechanical properties. Applications include shell-and-tube heat exchangers, condensers, and pipelines. In practical applications, when connecting titanium alloy tubes, the ends need to be flared.

[0003] Currently, when flaring titanium alloy tubes, the process usually involves applying a thrust to the end of the tube using a flaring cone, causing the cone to enter through the tube's port, thus achieving the flaring process.

[0004] However, during the flaring process, the size of the flaring at the end of the titanium alloy tube is usually determined by the distance the flaring cone penetrates into the titanium alloy tube. The penetration distance of the flaring cone is difficult to control and requires a high level of operational skill. It is very easy to cause the flaring size to not meet the requirements and require secondary flaring. Although it is possible to precisely control the penetration distance through a control system, the cost is high. Utility Model Content

[0005] The purpose of this invention is to provide a titanium alloy tube flaring device that facilitates the flaring operation of titanium alloy tubes, limits the flaring size, and reduces deformation of the titanium alloy tube during the flaring process.

[0006] To achieve the above objectives, the present invention adopts a technical solution of a titanium alloy short tube flaring device, comprising a base, a flaring component and a stabilizing component on the base, a positioning component between the flaring component and the stabilizing component, the positioning component being movable on the base, the positioning component comprising a base plate, a size limiter on the base plate, the base plate being connected to the base via a track, the base plate driving the size limiter to translate, the size limiter comprising an annular limiting component, when the titanium alloy tube is locked by the stabilizing component, the titanium alloy tube passes through the limiting component, at this time the limiting component coincides with the central axis of the titanium alloy tube, the limiting component is provided with a plurality of limiting rods, the plurality of limiting rods extending radially and passing through the limiting component.

[0007] Furthermore, the limiter also includes a connecting rod, which is fixed to the base. A support assembly is connected to the connecting rod, which supports the titanium alloy tube.

[0008] Furthermore, the support assembly includes a strut and a support plate, with the support plate located at the upper end of the strut and having an arc-shaped cross-section. The strut controls the vertical movement of the support plate.

[0009] Furthermore, a pressing component is provided above the tray, and the pressing component is connected to the limiting component. When the titanium alloy tube passes through the limiting component, the titanium alloy tube is located between the tray and the pressing component.

[0010] Furthermore, the pressing assembly includes a horizontally extending strip with a pressing rod on it. The pressing rod is screwed to the strip and is in a vertical position, with its lower end abutting against the titanium alloy tube.

[0011] Furthermore, the stabilizing component includes a three-jaw positioning chuck, which is coaxially arranged with the limiting component. A through tube passes through the center of the three-jaw positioning chuck, and a central positioning rod passes through the through tube. A stain cleaning brush is connected to the end of the central positioning rod.

[0012] Furthermore, the base is equipped with a scale, which extends in the same direction as the track and is located on the outside of the slide rail. One end of the scale is aligned with the bottom of the movable claw, and the other end extends towards the flared assembly.

[0013] Furthermore, the base plate is equipped with a scale pointer, which is located in the same vertical plane as the limit rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When performing the flaring operation on a titanium alloy tube, one end of the titanium alloy tube is placed on a three-jaw positioning chuck for centering, while the titanium alloy tube passes through the limiting component. Then, the distance between the inner end of the limiting rod on the limiting component and the surface of the titanium alloy tube is adjusted. Then, a pushing force is applied to the end of the titanium alloy tube by the flaring cone, so that the end of the flaring cone gradually enters into the port of the titanium alloy tube. As the port of the titanium alloy tube gradually expands, the outer wall of the titanium alloy tube will contact the inner end of the limiting rod. At this time, the end of the flaring cone cannot continue to move into the titanium alloy tube, thereby improving the accuracy of the flaring process at the port of the titanium alloy tube.

[0015] During the flaring process of titanium alloy tubes, the tubes are supported by the support plate and limited by the pressure rod. This results in high stability of the titanium alloy tubes and reduces the occurrence of deformation due to axial thrust. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the stable component structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 4 This is a side view of the structure of this utility model;

[0020] Figure 5 This is a top view of the structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the main structure of another embodiment of the present utility model;

[0022] Figure 7 This is a schematic diagram of the second structure of the strut of this utility model;

[0023] Among them, 1-base, 2-flaring assembly, 3-stabilizing assembly, 4-positioning assembly, 5-three-jaw positioning chuck, 6-support frame, 7-center positioning rod, 8-chuck body, 9-movable jaw, 10-jaw drive rod, 11-through tube, 12-stain cleaning brush, 13-base plate, 14-track, 15-limiting component, 16-limiting rod, 17-connecting rod, 18-support rod, 19-support plate, 20-flat support platform, 21-pressure plate, 22-pressure rod, 23-limiting arm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. It should be understood that the preferred embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. In the embodiments, the components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0025] See Figures 1 to 5As shown, a titanium alloy short tube flaring device includes a base 1, a flaring component 2, a stabilizing component 3, and a positioning component 4. The base 1 is placed on the ground, the stabilizing component 3 is installed on the upper end of the base 1, and the flaring component 2 is installed on the other end of the base 1. The flaring component 2 and the stabilizing component 3 are arranged opposite each other, that is, the flaring cone of the flaring component 2 points to the stabilizing component 3. The stabilizing component 3 encloses a three-jaw positioning chuck 5, and the center line of the three-jaw positioning chuck 5 coincides with the center line of the flaring cone. The positioning component 4 is installed on the base 1 at a position between the stabilizing component 3 and the flaring component 2, and the stabilizing component 3, the positioning component 4, and the flaring component 2 are arranged in a straight line. One end of the titanium alloy tube is placed on the stabilizing component 3, the center position of the titanium alloy tube is determined by the stabilizing component 3, the positioning component 4 clamps and fixes the titanium alloy tube, and then the flaring component 2 performs the flaring operation on the fixed titanium alloy tube.

[0026] The stabilizing component 3 includes a support frame 6, a three-jaw positioning chuck 5, and a central positioning rod 7. The support frame 6 is fixed to the base 1. The three-jaw positioning chuck 5 is installed on the upper end of the support frame 6, and its central axis is parallel to the base 1. The three-jaw positioning chuck 5 consists of a chuck body 8, movable jaws 9, and jaw drive rods 10. The chuck body 8 is circular with a through hole in the center. A through tube 11 passes through the through hole of the chuck body 8 and is fixedly connected to the chuck body 8. There are three or more movable jaws 9. The jaws 9 are arranged in a circular array around the central axis of the chuck body 8. When positioning the titanium alloy tube, multiple movable jaws 9 are simultaneously inserted from the non-flared end of the titanium alloy tube. The movement of the movable jaws 9 is driven by the rotation of the jaw drive rod 10. When multiple movable jaws 9 are all against the inner wall of the titanium alloy tube, the center line of the titanium alloy tube can be determined. That is, at this time, the central axes of the titanium alloy tube, the three-jaw positioning chuck 5 and the flaring cone coincide, which can facilitate the precise operation during subsequent flaring and reduce the error during the flaring operation.

[0027] To ensure a smooth flaring process, the inner wall of the titanium alloy pipe needs to be cleaned to prevent dirt and dust from affecting the accuracy of the flaring. A central positioning rod 7 passes through the aforementioned through-tube 11, with its center line aligned with the center line of the three-jaw chuck 5. At this point, the central positioning rod 7 is parallel to the base 1 and coaxial with the flaring cone. A drive mechanism, such as a hand crank or a lead screw, can be connected to the outer end of the central positioning rod 7. A spirally extending groove is provided on the inner wall of the through-tube 11. The drive mechanism controls the rotation of the central positioning rod 7, allowing it to move axially. To clean dirt and dust from the inner wall of the titanium alloy pipe, a stain cleaning brush 12 is provided at one end of the central positioning rod 7. The stain cleaning brush 12 can be cylindrical or other shapes and can be installed on the central positioning rod 7 using a sleeve or snap-fit ​​method. The stain cleaning brush 12 can be made of a relatively soft and resilient material such as plastic. Due to the material properties of the stain cleaning brush 12, it can be inserted into a titanium alloy tube with a diameter smaller than that of the main body. At this time, the stain cleaning brush 12 performs preliminary cleaning on the inner wall of the end of the titanium alloy tube. Then, the movable claw 9 is inserted into the titanium alloy tube. After the movable claw 9 positions the titanium alloy tube, the stain cleaning brush 12 is rotated by rotating the central positioning rod 7. At the same time, the stain cleaning brush 12 moves along the length of the titanium alloy tube to clean the stains attached to the inner wall of the titanium alloy tube and gradually discharge the stains out of the titanium alloy tube.

[0028] In addition, the three-jaw positioning chuck 5 can also be used to seal the titanium alloy tube in this application. When the flaring assembly 2 flares the titanium alloy tube, the flaring cone moves forward and the titanium alloy tube will move away from the flaring cone under the action of force, affecting the flaring operation. At this time, the three-jaw positioning chuck 5 can limit the axial movement of the titanium alloy tube.

[0029] The aforementioned positioning component 4 includes a size limiter and a base plate 13. The positioning component 4 is mounted on the base 1 and positioned between the flaring component 2 and the stabilizing component 3. A track 14 is provided on the base 1, extending from the flaring component 2 towards the stabilizing component 3. The length of the track 14 is less than the distance between the stabilizing component 3 and the flaring component 2. Simultaneously, a groove is provided on the lower surface of the base plate 13, and the track 14 is engaged within the groove, allowing the base plate 13 to move along the track 14. The size limiter is mounted on the base plate 13 and includes a limiting component 15. The limiting component 15 is connected to the base plate 13 via a connecting rod 17. The limiting component 15 is annular and coaxially aligned with the three-jaw positioning chuck 5. During the flaring operation of the titanium alloy tube, the titanium alloy tube passes through the limiting component 15.

[0030] Meanwhile, a limiting rod 16 is provided on the limiting component 15. There can be two or more limiting rods 16. If there are two limiting rods 16, the two limiting rods 16 are arranged opposite each other. If there are several limiting rods 16, the several limiting rods 16 are arranged in an array around the central axis of the limiting component 15. A screw hole extending in the radial direction is provided on the limiting component 15. The limiting rod 16 passes through the screw hole and forms a screw connection. The end of the limiting rod 16 pointing to the center of the limiting component 15 is conical. By rotating the limiting rod 16, the limiting rod 16 can be moved axially. However, it should be noted that the distance from the inner end of the several limiting rods 16 to the center of the limiting component 15 should be equal. In this way, the maximum flare size of the titanium alloy tube is limited by the limiting rod 16. When the flaring cone reaches the limiting component 15, the outer wall of the titanium alloy tube contacts the inner end of the limiting rod 16, thus completing the precise flaring operation. After the flaring operation is completed, the base plate 13 can be moved to make it easier to remove the titanium alloy tube. The distance between the limiting component 15 and the end of the titanium alloy tube can also be changed by moving the base plate 13, so as to meet the different flaring size requirements of different titanium alloy tubes.

[0031] To facilitate length measurement of the titanium alloy tube and precise definition of the flared end length, this application provides a scale on the base 1. The scale can be installed on the upper surface of the base 1 or placed on the base 1 by engraving, pasting, or other methods. The scale extends in the same direction as the track 14, that is, the scale is parallel to the slide rail and is located outside the slide rail. One end of the scale is aligned with the bottom end of the movable claw 9, and the other end extends towards the flared end assembly 2. That is, after the titanium alloy tube is positioned by the movable claw 9, the end of the tube in contact with the movable claw 9 is aligned with the starting position of the scale on the scale. At this time, a scale pointer is provided on the base plate 13. The scale pointer and the limiting rod 16 are located in the same vertical plane. The distance between the inner end of the limiting rod 16 and the end of the titanium alloy tube can be directly observed through the scale pointer.

[0032] See Figures 6 to 7As shown, in another embodiment of this utility model, to prevent the titanium alloy tube from shifting when flaring, a support assembly is connected to the connecting rod 17 based on the above structure. The support assembly supports the titanium alloy tube. Specifically, the support assembly includes a support rod 18 and a support plate 19. The support plate 19 is located at the upper end of the support rod 18, and its cross-section is arc-shaped with an opening. The opening of the support plate 19 faces upwards, allowing the titanium alloy tube to be placed within the arc-shaped opening of the support plate 19. A flat support platform 20 is connected to the lower end of the support rod 18. One end of the flat support platform 20 is fixed to the connecting rod 17, and the other end... The end is fixed to the base plate 13. The support rod 18 can control the vertical translation of the support plate 19. After the titanium alloy tube is positioned by the three-grip positioning chuck 5, the position of the support plate 19 is adjusted by the support rod 18 until the support plate 19 supports the titanium alloy tube. At the same time, a pressing component is provided on the limiting component 15. The pressing component includes a horizontally extending strip 21. The strip 21 is located above the titanium alloy tube. The strip 21 is provided with a longitudinal through threaded hole. A pressing rod 22 passes through the threaded hole. The outer surface of the pressing rod 22 is provided with a threaded groove. When the pressing rod 22 rotates, the pressing rod 22 will move longitudinally and its lower end can abut against the titanium alloy tube.

[0033] The support rod 18 has two structural options. The first structure is that the support rod 18 is telescopic and can be an existing electric push rod. In this case, its lower end is fixed on the flat support platform 20. When it extends, the control plate 19 moves upward, and when it shortens, the control plate 19 moves downward.

[0034] In the second structure, the support rod 18 is a rod of fixed length, but its surface is provided with a threaded groove extending in the axial direction. In this case, the support rod 18 vertically passes through the flat support platform 20, and the two are screwed together. When the support rod 18 rotates, the support rod 18 will move vertically, thereby driving the support plate 19 to move vertically. At this time, the upper end of the support rod 18 abuts against the support plate 19. Two limiting arms 23 are fixed on the support plate 19. Both limiting arms 23 pass through the flat support platform 20. When the support rod 18 moves vertically, the support plate 19 and the two limiting arms 23 move vertically at the same time.

[0035] Specifically, one end of the titanium alloy tube is placed on the three-jaw positioning chuck 5 for centering, while the titanium alloy tube passes through the limiting component 15. At this time, the limiting component 15, the three-jaw positioning chuck 5, and the flaring cone are on the same central axis. The flaring end of the titanium alloy tube is sized by the limiting rod 16 on the limiting component 15. If the titanium alloy tube needs to be cleaned of stains on the inner wall, the central positioning rod 7 is controlled to move axially. The stain cleaning brush 12 at the end of the central positioning rod 7 is used to clean the inner wall of the titanium alloy tube. After cleaning, the titanium alloy tube is flared by the flaring component 2.

[0036] In addition, the movement of the flaring cone axis on the flaring assembly 2 can be controlled manually or driven by other power components.

[0037] Finally, the three-jaw positioning chuck in this application is an existing product that can be purchased. This technical solution only applies its positioning function and does not improve its structure. Therefore, its specific composition and working principle will not be described in detail here.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to an electrical connection; they can refer to a hydraulic connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be primarily defined by the scope of the claims.

Claims

1. A titanium alloy short tube flaring device, comprising a base, wherein the base is provided with a flaring assembly and a stabilizing assembly, characterized in that: A positioning component is provided between the flaring component and the stabilizing component, and the positioning component can move on the base; The positioning component includes a base plate with a size limiter on it. The base plate is connected to the base via a track, and the base plate drives the size limiter to move horizontally. The size limiter includes a circular limiting component. When the titanium alloy tube is locked by the stabilizing component, the titanium alloy tube passes through the limiting component. At this time, the limiting component coincides with the central axis of the titanium alloy tube. The limiting component is provided with several limiting rods, which extend radially and pass through the limiting component.

2. The titanium alloy short tube flaring device according to claim 1, characterized in that: The size limiter also includes a connecting rod, which is fixed to the base. A support assembly is connected to the connecting rod, which supports the titanium alloy tube.

3. The titanium alloy short tube flaring device according to claim 2, characterized in that: The support assembly includes a support rod and a support plate. The support plate is located at the upper end of the support rod, and the cross-section of the support plate is arc-shaped. The support rod controls the vertical movement of the support plate.

4. The titanium alloy short tube flaring device according to claim 3, characterized in that: A pressing component is provided above the tray, and the pressing component is connected to the limiting component. When the titanium alloy tube passes through the limiting component, the titanium alloy tube is located between the tray and the pressing component.

5. The titanium alloy short tube flaring device according to claim 4, characterized in that: The pressure assembly includes a horizontally extending strip with a pressure rod on it. The pressure rod is screwed to the strip and is in a vertical position, with its lower end abutting against a titanium alloy tube.

6. The titanium alloy short tube flaring device according to claim 1, characterized in that: The stabilizing component includes a three-jaw positioning chuck, which is coaxially arranged with the limiting component. A through tube passes through the center of the three-jaw positioning chuck, and a central positioning rod passes through the through tube. A stain cleaning brush is connected to the end of the central positioning rod.

7. The titanium alloy short tube flaring device according to claim 1, characterized in that: The base is equipped with a scale, which extends in the same direction as the track and is located on the outside of the slide rail. One end of the scale is aligned with the bottom end of the movable claw, and the other end extends toward the flared assembly.

8. The titanium alloy short tube flaring device according to claim 7, characterized in that: The base plate is equipped with a scale pointer, and the scale pointer and the limit rod are located in the same vertical plane.

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