Flaring die tool

Abstract

This utility model relates to the field of conduit processing technology, specifically to a flaring clamping fixture, including a flaring clamping mold and a limiting component; the limiting component includes a stop block, which applies a limiting force to the conduit during flaring. In use, the two sub-clamping molds of the flaring clamping mold are separated by a certain distance to allow the conduit to be inserted into the groove. After the right end of the conduit contacts the stop block, the distance between the two sub-clamping molds is adjusted so that the clamping surface of the flaring clamping mold tightly clamps the conduit, and then the left end of the conduit can be flared. Because the right end of the conduit is limited by the stop block, the conduit cannot move axially to the right during the flaring operation, thus ensuring the manufacturing quality of the flaring.

Description

Technical Field

[0001] This utility model relates to the field of conduit processing technology, specifically to a flaring clamping tool. Background Technology

[0002] Aircraft and engines contain numerous conduits and piping systems for transporting media such as air, fuel, and hydraulic fluid. These conduits are often referred to as the blood vessels of aircraft and engines, playing a crucial role in the stable operation of the aircraft.

[0003] Venting is a crucial step in the manufacturing of flared catheters. Currently, flaring molds serve to hold and secure the catheter during this process. However, after prolonged use, the clamping surface of the flaring mold can lose its gripping effectiveness, potentially causing the catheter to slide axially relative to the mold, thus affecting the manufacturing quality of the flared catheter. Utility Model Content

[0004] In view of this, the present invention provides a flaring clamping fixture, which aims to prevent the guide tube from sliding axially relative to the flaring clamping mold during flaring, thereby ensuring the manufacturing quality of the flared section. To solve the above technical problems, the technical solution adopted by this utility model is as follows: A flaring clamping tooling includes a flaring clamping mold and a limiting component; the flaring clamping mold has a flaring portion and a clamping portion; the flaring portion is located on one side of the clamping portion along the axial direction; the limiting component includes a stop block; the stop block is located on the other side of the clamping portion along the axial direction, so as to apply a limiting force along the axial direction of the clamping portion to at least the guide tube clamped in the clamping portion, pointing towards the flaring portion.

[0005] As an alternative implementation, the stop has an abutment portion protruding toward the flaring mold; when a limiting force is applied to the catheter, the abutment portion extends into a nut on the catheter to abut against the non-current flared end of the catheter.

[0006] As an optional implementation, the limiting component further includes an extension; the stop is connected to the flared clamping mold via the extension.

[0007] As an optional implementation, the flared clamping mold includes two cooperating sub-clamping molds; the stop block is connected to one of the sub-clamping molds via the extension.

[0008] As an optional implementation, the stop and / or the extension has the freedom to reciprocate along the axial direction of the clamping portion.

[0009] As an optional implementation, the limiting component further includes an adjusting member; the adjusting member is movably connected to the extension member and its axial position is adjustable along the clamping portion; the adjusting member is linked to the stop block.

[0010] As an optional implementation, the extension has a limiting groove, the stop is slidably disposed in the limiting groove and can reciprocate along the axial direction of the clamping part; the adjusting member abuts against the stop.

[0011] As an optional implementation, the limiting component further includes a connector; the extension has a connecting hole that is axially arranged parallel to the clamping portion in the length direction; the connector passes through the connecting hole and connects to the flared clamping mold.

[0012] As an optional implementation, a wear-resistant layer is provided on the surface of the clamping part.

[0013] As an optional implementation, the wear-resistant layer is a zirconium oxide coating.

[0014] In summary, compared with the prior art, this utility model has the following advantages and beneficial effects: In use, the two sub-molds of the flaring mold are separated by a certain distance to allow the guide tube to be inserted into the groove. After the right end of the guide tube contacts the stop block, the distance between the two sub-molds of the flaring mold is adjusted so that the clamping surface of the flaring mold clamps the guide tube tightly. Then, the left end of the guide tube can be flared. Because the right end of the guide tube is limited by the stop block, the guide tube cannot move axially to the right during the flaring operation, thus ensuring the manufacturing quality of the flaring. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the right-side structure of this utility model.

[0016] Figure 2 Example 1 is based on Figure 1 A schematic diagram of the AA-direction cross-section.

[0017] Figure 3 Example 2 is based on Figure 1 A schematic diagram of the AA-direction cross-section.

[0018] Figure 4 This is a front view structural diagram of the extension component in this utility model.

[0019] Figure 5 for Figure 4 A schematic diagram of the left-side structure shown.

[0020] Figure 6 for Figure 4 The diagram shows a top view of the structure.

[0021] Figure 7 This is a schematic diagram of the left side of the flared clamping mold in this utility model.

[0022] Figure 8 for Figure 7 A schematic diagram of the BB-direction cross-section structure.

[0023] Figure 9 for Figure 7 The diagram shows a top view of the structure.

[0024] The labels in the diagram are as follows: flared clamping mold 1, sub-clamping mold 11, flared part 12, clearance part 13, clamping part 14, first threaded hole 15. Limiting component 2, extension 21, extension part 211, extension part 212, limiting slide 213, second threaded hole 214, connecting hole 215, connecting part 22, stop block 23, adjusting part 24, guide tube 31, nut 32. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number, while "above," "below," "within," etc. are understood to include the stated number. If terms such as "first," "second," etc., are used only to distinguish technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0029] Example 1 like Figure 1 As shown in the figure, this application embodiment introduces a flaring clamping tooling, which mainly includes a flaring clamping mold 1 and a limiting component 2.

[0030] like Figures 7-9As shown, the flared clamping mold 1 includes two mating sub-molds 11. Each of the two sub-molds 11 has a groove on its facing surface for the guide tube 31 to pass through, such as... Figure 8 As shown, the groove can be a stepped groove, such as a three-stage stepped groove that gradually decreases in size from left to right along the axial direction. The groove on the left serves as a flaring section 12 to avoid the flared portion of the conduit 31 during the flaring operation. The groove in the middle serves as a clearance section 13 to accommodate other components fitted onto the conduit 31. The groove on the right serves as a clamping section 14 to clamp and secure the conduit 31. The flaring mold 1 is usually mounted on a flaring machine.

[0031] like Figure 2 As shown, the limiting component 2 includes a stop block 23, which is located on the other side of the axial direction of the clamping part 14, that is, the stop block 23 is located on the right side of the flared clamping mold 1.

[0032] The stop 23 is used to apply a limiting force, at least axially along the clamping part 14 and pointing towards the flaring part 12, to the non-currently flared end of the catheter 31 clamped in the clamping part 41. For example, if it is necessary to flare the left end of the catheter 31, the right end of the catheter 31 may be unflared or flared. In this case, the left end of the catheter 31 is the currently flared end, and the right end is the non-currently flared end. The stop 23 provides a leftward axial limit to the right end of the catheter 31 to prevent the catheter 31 from moving to the right.

[0033] In use, the two sub-molds 11 of the flaring mold 1 are separated by a certain distance so that the guide tube 31 can be inserted into the groove. After the right end of the guide tube 31 contacts the stop block 23, the distance between the two sub-molds 11 of the flaring mold 1 is adjusted so that the clamping part 14 of the flaring mold 1 clamps the guide tube 31. Then, the left end of the guide tube 31 can be flared. Because the right end of the guide tube 31 is limited by the stop block 23, the guide tube 31 cannot move to the right along the axial direction during the flaring operation, thus ensuring the manufacturing quality of the flaring.

[0034] The stop block 23 can be installed using a separate bracket or support, as an optional implementation, such as... Figure 2 As shown, the limiting component 2 also includes an extension 21, and the stop block 23 is connected to the flared clamping mold 1 through the extension 21.

[0035] Optionally, the left end of the extension 21 is connected to one of the sub-molds 11 of the flared clamping mold 1, and the stop block 23 is connected to the right end of the extension 21.

[0036] This invention uses an extension 21 to mount the stop 23 onto the flared clamping mold 1, which helps to reduce the overall size of the tooling. Since a separate bracket or support is omitted, this structure also helps to reduce manufacturing costs.

[0037] Optional, such as Figure 4 As shown, the extension 21 includes an extension 211 arranged along the axial direction of the clamping portion 14 and an extension 212 arranged perpendicular to the axial direction of the clamping portion 14. For example, the left end of the extension 211 is connected to the top of one of the sub-clamping molds 11 of the flared clamping mold 1, the right end of the extension 211 extends downward to form the extension 212, and the stop 23 is installed on the extension 212 on the side close to the flared clamping mold 1.

[0038] As an optional implementation, the stop 23 and / or the extension 21 have the freedom to reciprocate along the axial direction of the clamping part 14 to adjust the clamping position of the conduit 31 in the flaring mold 1, so that the present invention can be applied to a certain extent to conduits 31 of various length specifications, and also helps to ensure the manufacturing quality of the flaring.

[0039] Optional, such as Figure 2 As shown, the limiting component 2 also includes an adjusting member 24; the adjusting member 24 is movably connected to the extension member 21 and its position is adjustable along the axial direction of the clamping part 14; the adjusting member 24 is linked and cooperates with the stop block 23.

[0040] For example, such as Figure 4 and Figure 5 As shown, the extension 212 has a second threaded hole 214 arranged along the axial direction of the clamping portion 14. The adjusting member 24 is preferably a bolt and is screwed into the second threaded hole 214 to achieve axial positional adjustment of the clamping portion 14. The left end of the adjusting member 24 is connected to the stop 23 by, for example, welding, so that when the adjusting member 24 rotates in the second threaded hole 214, it drives the stop 23 to move axially in the clamping portion 14 to adjust the clamping position of the guide tube 31 in the flared mold 1.

[0041] As an optional implementation method, such as Figure 4 and Figure 5 As shown, the extension 21 has a limiting groove 213, the stop 23 is slidably disposed in the limiting groove 213 and can reciprocate along the axial direction of the clamping part 14; the adjusting member 24 abuts against the stop 23.

[0042] For example, the limiting groove 213 is located on the side of the extension 212 near the flared clamping mold 1. The stop block 23 is slidably disposed within the limiting groove 213 and guided by the limiting groove 213 to slide back and forth only along the axial direction of the clamping part 14. At this time, the left end of the adjusting member 24 abuts against the stop block 23. When the adjusting member 24 rotates to the left in the second threaded hole 214, it only pushes the stop block 23 to move to the left along the axial direction of the clamping part 14 within the limiting groove 213. The movement of the stop block 23 to the right is achieved by the guide tube 31 pushing it to the right. At this time, it is necessary to first operate the adjusting member 24 to rotate to the right in the second threaded hole 214 to withdraw it.

[0043] Therefore, the adjusting component 24 and the stop block 23 can be linked together by means of welding or abutment, for example.

[0044] As an optional implementation method, such as Figure 2 As shown, the limiting component 2 also includes a connector 22. (As indicated...) Figure 6 As shown, the extension 21 has an axially arranged connecting hole 215 parallel to the clamping portion 14 in the length direction, for example, a strip-shaped hole. The connector 22 passes through the connecting hole 215 and connects to the flared clamping mold 1.

[0045] For example, connector 22 is preferably a bolt. Figure 9 As shown, a first threaded hole 15 is provided on the top of one of the sub-molds 11 of the flared clamping mold 1. The connector 22 passes through the connecting hole 215 and is screwed into the first threaded hole 15. Since the connecting hole 215 is a strip-shaped hole arranged parallel to the axial direction of the clamping part 14, the position of the connector 22 in the connecting hole 215 can be adjusted to adjust the connection position of the extension 21 on one of the sub-molds 11 of the flared clamping mold 1, thereby adjusting the position of the stop block 23.

[0046] In this invention, the position of the stop block 23 is coarsely adjusted by adjusting the connection position of the extension member 21 on one of the sub-clamping molds 11 of the flaring mold 1, and the position of the stop block 23 is finely adjusted by adjusting the adjustment member 24, thereby efficiently and accurately adjusting the position of the stop block 23, and thus adjusting the clamping position of the guide tube 31 in the flaring mold 1.

[0047] After long-term use, the surface of the clamping part 14 of the flaring mold 1 will wear down, reducing the clamping effect. This may cause the catheter 31 to slide axially relative to the flaring mold 1, thereby affecting the manufacturing quality of the catheter flaring. Furthermore, due to the wear and deformation of the surface of the clamping part 14, the surface of the catheter 31 may be scratched when clamping the catheter 31, resulting in scratches or clamping marks.

[0048] To address these issues, as an optional implementation, the clamping portion 14 of the flared clamping mold 1 is provided with a wear-resistant layer, such as a zirconia coating. The zirconia coating enhances the wear resistance of the clamping portion 14, preventing wear and deformation and maintaining a stable clamping effect over a long period. This prevents the conduit 31 from easily sliding axially within the flared clamping mold 1. Furthermore, because the clamping portion 14 is resistant to wear and deformation, it maintains a good surface shape and is less prone to scratches or clamping marks on the surface of the conduit 31.

[0049] Example 2 The difference between Example 2 and Example 1 is that the shape of the stop 23 is different.

[0050] To achieve the connection of adjacent catheters 31, such as Figure 3 As shown, a nut 32 is typically fitted onto the conduit 31. This nut 32 is usually located at the end of the conduit 31 or can slide on the conduit 31. Therefore, when the stop 23 contacts the right end of the conduit 31, the nut 32 may obstruct reliable and effective contact, thus failing to guarantee the positional accuracy of the conduit 31.

[0051] Therefore, as Figure 3 As shown, the present invention has a stop block 23 with a protruding abutment portion protruding toward the flaring mold 1. When a limiting force is applied to the guide tube 31, the abutment portion extends into the nut 32 on the guide tube 31 to abut against the non-current flaring end of the guide tube 31, thereby ensuring that the stop block 23 can reliably and effectively contact the end of the guide tube 31 and ensuring the positional accuracy of the guide tube 31.

[0052] In Embodiments 1 and 2, the conduit 31 was described as a straight tube. However, it is foreseeable that this invention can also be used in cases where the conduit 31 includes a partial bend or a curved conduit 31. It is even readily conceivable that the groove on the flared clamp 1 can be set along the bending direction of the conduit 31, and the shape of the extension 21 can be changed from an angled shape to a curved shape. The surface of the stop 23 and the direction of the abutment portion can also be adjusted as needed. Furthermore, the stop 23 can contact a non-end portion of the conduit 31 to serve a limiting function.

[0053] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above preferred embodiments should not be considered as limitations on this utility model, and the scope of protection of this utility model should be determined by the scope defined in the claims. For those skilled in the art, several improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A flare clamp die tooling characterized by: Includes a flared clamping mold (1) and a limiting component (2); The flared clamping mold (1) has a flared portion (12) and a clamping portion (14); the flared portion (12) is located on one side of the clamping portion (14) along its axial direction; The limiting component (2) includes a stop (23); the stop (23) is located on the other side of the clamping part (14) in the axial direction to apply a limiting force to the conduit (31) clamped in the clamping part (14) in the axial direction of the clamping part (14) and pointing towards the flared part (12).

2. A flare-clip die tooling as claimed in claim 1, wherein: The stop block (23) has an abutting part that protrudes toward the flared clamping mold (1); When a limiting force is applied to the catheter (31), the abutment portion extends into the nut (32) on the catheter (31) to abut against the non-current flared end of the catheter (31).

3. A flare-clip die assembly as defined in claim 1 wherein: The limiting component (2) also includes an extension (21); The stop block (23) is connected to the flared clamping mold (1) via the extension (21).

4. A flare-clip die assembly as defined in claim 3 wherein: The flared clamping mold (1) includes two cooperating sub-clamping molds (11); The stop (23) is connected to one of the sub-clamping molds (11) via the extension (21).

5. A flare-clip die assembly as claimed in claim 3 or 4, wherein: The stop (23) and / or the extension (21) have the degree of freedom to reciprocate along the axial direction of the clamping part (14).

6. A flare-clip die assembly as claimed in claim 3 or 4, wherein: The limiting component (2) also includes an adjusting member (24); the adjusting member (24) is movably connected to the extension member (21) and its position is adjustable along the axial direction of the clamping part (14); The adjusting component (24) and the stop block (23) work together in a coordinated manner.

7. A flare-clip die assembly as defined in claim 6 wherein: The extension (21) has a limiting groove (213), and the stop (23) is slidably disposed in the limiting groove (213) and can reciprocate along the axial direction of the clamping part (14); The adjusting member (24) abuts against the stop (23).

8. A flare-clip die assembly as claimed in claim 3 or 4, wherein: The limiting component (2) also includes a connector (22); The extension (21) is provided with a connecting hole (215) that is axially arranged parallel to the clamping part (14) in the length direction. The connector (22) passes through the connecting hole (215) and is connected to the flared clamping mold (1).

9. A flare-ironing die set as defined in claim 1, wherein: The surface of the clamping part (14) is provided with a wear-resistant layer.

10. The flared clamping fixture as described in claim 9, characterized in that: The wear-resistant layer is a zirconium oxide coating.

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