An adjustable repair rack tooling for catheter over the wire repair positioning

Abstract

The utility model discloses a kind of adjustable repair jigs for the positioning of repair of conduit plus cannula, belong to mechanical engineering field.The tooling includes support rod, connection module, connecting rod, adapter assembly and fixed block assembly.Among them, connection module constitutes the boss connecting block and the concave hole connecting block relatively rotatable and locked;Adapter assembly includes adapter rod and the first, second adapter head of its two ends, and the cooperation of different shafts of rotation axis is formed between adapter rod and two adapter heads, realize spatial multi-degree-of-freedom adjustment;Fixed block assembly contains two fixed blocks that can be relatively moved to hold conduit.In the utility model, each component is formed adjustable positioning frame by modular assembly, overcome the defect that traditional jig is poor in versatility, heavy and long in production cycle, can flexibly adapt to the complex space shape of different conduit, with the advantages of accurate positioning, convenient adjustment, save storage space and low maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical engineering technology, specifically relating to an adjustable repair frame tooling for positioning and repairing conduits with sleeves. Background Technology

[0002] In the repair of aero-engine ducts, for faults such as deformation, narrowing, or dents located in the straight section of the duct body, the complex overall shape of the duct makes it impossible to insert a mandrel into the faulty section and correct the faulty part. It is often necessary to saw open the faulty section, correct and repair it, and then connect the cut parts by brazing and adding a sleeve. To ensure that the spatial position of the duct remains unchanged before and after repair, a special positioning jig is required. Traditional duct manufacturing jigs are large, heavy, and inconvenient to transport, and their fixed shape design makes them unsuitable for different duct types. Furthermore, traditional jigs are expensive to manufacture and have long lead times, which can easily lead to repair shutdowns during sudden repair needs, increasing the pressure on repair management and repair costs. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems of poor versatility, bulkiness and long manufacturing cycle of existing conduit repair frames, which lead to inconvenience and high cost in repair work. It proposes a repair frame tooling that can be flexibly adjusted and modularly assembled.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0005] An adjustable repair fixture for positioning during conduit and sleeve repair is provided, comprising:

[0006] Support rod, used for connection to the perforated worktable;

[0007] The connecting module includes a boss connecting block and a recessed connecting block. One of the boss connecting block and the recessed connecting block is slidably sleeved on the support rod and can be locked. The boss on the boss connecting block can be inserted into the recess on the recessed connecting block, and after insertion, the boss connecting block and the recessed connecting block can rotate relative to each other and lock.

[0008] A connecting rod, used to pass through the other of the boss connecting block and the concave connecting block;

[0009] The adapter assembly includes an adapter rod and a first adapter and a second adapter located at both ends of the adapter rod. The first adapter is slidably sleeved on the connecting rod and can be locked. The adapter rod is rotatably connected to the first adapter and the second adapter and can be locked at an angle. The rotation axes between the adapter rod and the first adapter and the second adapter are not coaxial with each other.

[0010] A retaining block assembly for connection with a second adapter, comprising two retaining blocks capable of relative movement to jointly clamp or release the catheter being repaired.

[0011] Furthermore, the boss connecting block is provided with a cylindrical boss, and the concave connecting block is provided with a blind hole that matches the cylindrical boss. The boss is inserted into the blind hole to achieve rotational engagement.

[0012] Furthermore, the concave hole connecting block is provided with a set screw hole leading to the blind hole, which is used to install a set screw to lock the relative angle between the boss connecting block and the concave hole connecting block.

[0013] Furthermore, both the first adapter and the second adapter include a base and a connecting part disposed on the base. The base of the corresponding adapter is used to connect with the connecting rod or the fixing block assembly. The two ends of the adapter rod are provided with lugs in different directions. The lugs are connected to the connecting part of the corresponding adapter by a pin or bolt to form a rotational fit with different axes of rotation.

[0014] Furthermore, the lugs at both ends of the adapter rod protrude perpendicularly to each other, so that the lugs and the corresponding adapters form a rotational fit with their rotation axes perpendicular to each other.

[0015] Furthermore, the base of the first adapter is provided with a set screw hole for installing a set screw to lock the adapter to the connecting rod.

[0016] Furthermore, a connecting rod is connected between the two fixed blocks. The connecting rod is threaded to the two fixed blocks and the thread direction is opposite to that of the two fixed blocks. When the connecting rod rotates, it can drive the two fixed blocks to move closer or further apart. Corresponding connecting holes are provided on the two fixed blocks. The two fixed blocks are fastened to clamp the conduit being repaired by the cooperation of bolts and nuts that pass through the connecting holes.

[0017] Furthermore, each of the two fixing blocks has an arc-shaped recess on its opposing clamping surface, which together accommodates and fits the outer circumferential surface of the catheter being repaired.

[0018] Furthermore, one end of the support rod is threaded for screwing into a perforated worktable.

[0019] The advantages of this utility model are:

[0020] 1. The adjustable repair frame tooling provided by this utility model for positioning and repairing conduits with sleeves comprises a modular assembly structure consisting of connecting modules, connecting rods, adapter components, and fixing block components. The tooling can be flexibly adjusted according to the spatial shape and position of different conduits. In particular, through the relative rotation and locking of the boss connecting block and the concave connecting block, as well as the design of the different axes of rotation at both ends of the adapter rod, it achieves precise position and angle adjustment with multiple degrees of freedom. This allows one set of tooling to adapt to the repair and positioning needs of various conduit models, completely eliminating the limitations of the traditional "one frame per conduit" tooling and significantly reducing initial manufacturing costs and subsequent maintenance costs.

[0021] 2. This tooling can be disassembled and stored, which greatly saves storage space. At the same time, if a part is damaged, only the corresponding module needs to be replaced, without scrapping the entire tooling or re-customizing it. Maintenance is simple and economical. The features of disassembly, storage and modular replacement can greatly improve the convenience of maintenance and the response efficiency to sudden repair tasks.

[0022] 3. The tooling has a compact structure and no large-area obstruction. After the conduit is positioned, it can still be easily placed and removed, and provides ample operating space for maintenance work, ensuring the smooth progress of the welding process and the stable and controllable welding quality. Attached Figure Description

[0023] The above and / or other features and advantages of the present invention will become more readily understood from the following description with reference to the accompanying drawings, which are not drawn to scale and some features are enlarged or reduced to show details of specific parts.

[0024] Figure 1 This is a schematic diagram of the overall structure of the adjustable repair frame tooling for positioning and repairing conduits with sleeves according to this utility model;

[0025] Figure 2 This is a schematic diagram of the connection method between the boss connecting block and the concave hole connecting block in the connecting module of this utility model;

[0026] Figure 3 This is a schematic diagram of the connection method between the adapter rod and the two adapters in the adapter assembly of this utility model;

[0027] Figure 4 This is a schematic diagram of the connection method between the two fixing blocks in the fixing block assembly of this utility model.

[0028] In the diagram: 1-Support rod; 2-Boss connecting block, 21-Cylindrical boss; 3-Concave hole connecting block, 31-Setting screw hole; 4-Connecting rod; 5-Adapter rod, 51-First lug, 52-Second lug; 6-First adapter, 61-First base, 62-First connecting part; 7-Second adapter, 71-Second base, 72-Second connecting part; 8-First fixing block, 81-First arc-shaped recess; 9-Second fixing block, 91-Second arc-shaped recess; 10-Connecting rod; 101-Setting screw; 102-First bolt; 103-First nut; 104-Second bolt. Detailed Implementation

[0029] The present invention will now be described in detail with reference to the accompanying drawings and exemplary embodiments thereof. It should be noted that the following detailed description of the present invention is for illustrative purposes only and is not intended to limit the scope of the invention.

[0030] It should be noted that, in the context of this utility model, terms such as "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0031] Reference Figure 1 As an exemplary embodiment of this utility model, an adjustable repair frame fixture for positioning and repairing catheters with cannulation includes a support rod 1, a connecting module including a boss connecting block 2 and a concave connecting block 3, a connecting rod 4, a transfer assembly including an adapter rod 5 and a first adapter 6 and a second adapter 7 located at both ends of the adapter rod 5, and a fixing block assembly including a first fixing block 8 and a second fixing block 9. The boss connecting block 2, the concave connecting block 3, the connecting rod 5, the adapter assembly, and the fixing block assembly are modularly assembled to form a frame structure for positioning the spatial shape and position of the catheter.

[0032] The support rod 1 is used to connect to the perforated worktable, serving as the base of the entire tooling. In some embodiments, one end of the support rod 1 is threaded for screwing into the perforated worktable, thereby achieving the installation and fixation of the tooling.

[0033] Combination Figure 2 In the connecting module, one of the boss connecting block 2 and the concave connecting block 3 is slidably sleeved on the support rod 1 and can be locked. For example, as shown, the concave connecting block 3 is sleeved on the support rod 1 and the concave connecting block 3 is locked to the support rod 1 by a set screw.

[0034] like Figure 2As indicated by the arrow, the boss on the boss connecting block 2 can be inserted into the recess on the recess connecting block 3, and after insertion, the boss connecting block 2 and the recess connecting block 3 can rotate relative to each other, achieving 360-degree rotation, and can also be locked. In a preferred embodiment of the present invention, the boss connecting block 2 is provided with a cylindrical boss 21, and the recess connecting block 3 is provided with a blind hole (not shown in the figure) adapted to the cylindrical boss 21. The cylindrical boss 21 is inserted into the blind hole to achieve a rotational fit.

[0035] To achieve locking of the connecting module, in a specific embodiment, the concave hole connecting block 3 is provided with a set screw hole 31 leading to its blind hole. This hole is used to install a set screw 101 to lock the relative angle between the boss connecting block 2 and the concave hole connecting block 3.

[0036] The connecting rod 4 is used to pass through the other of the boss connecting block 2 and the concave connecting block 3. In the illustrated embodiment, the connecting rod 4 passes through the boss connecting block 2 and is locked by a set screw (not shown in the figure).

[0037] Combination Figure 3 In the adapter assembly, the first adapter 6 is slidably sleeved on the connecting rod 4 and can be locked. The adapter rod 5 is rotatably connected to the first adapter 6 and the second adapter 7, can achieve 360-degree rotation and can lock the angle, and the rotation axes between the adapter rod 5, the first adapter 6 and the second adapter 7 are not coaxial with each other.

[0038] Preferably, the first adapter 6 includes a first base 61 and a first connecting portion 62 disposed on the first base 61. The first base 61 is used to connect to the connecting rod 4 and is provided with a set screw hole for installing a set screw to lock the first adapter 6 to the connecting rod 4. The first connecting portion 62 is used to rotatably connect to the adapter rod 5. The second adapter 7 includes a second base 71 and a second connecting portion 72 disposed on the second base 71. The second base 71 is used to connect to the fixing block assembly and can also be locked by a set screw. The second connecting portion 72 is used to rotatably connect to the adapter rod 5.

[0039] In an exemplary embodiment of this utility model, the two ends of the adapter rod 5 are provided with lugs extending in different directions, namely a first lug 51 and a second lug 52, as shown below. Figure 3 As indicated by the two arrows, the two lugs are connected to the corresponding adapter portions (first connecting portion 62 and second connecting portion 72) via a first bolt 102 and a nut 103, or via a pin, forming a rotational fit with different axes of rotation. In a preferred embodiment, the lugs at both ends of the adapter rod 5 protrude perpendicularly to each other, and holes with perpendicular axes are machined on the lugs, so that the lugs and the corresponding adapters form a rotational fit with perpendicular axes of rotation. This design allows the tooling end to be adjusted in two directions without interference, thereby flexibly and accurately matching the complex three-dimensional spatial orientation of the conduit.

[0040] Combination Figure 4 The fixing block assembly is used to connect with the second adapter 7 and to clamp the catheter being repaired, compensating for the insufficient positional constraint of other components and ensuring that the catheter will not wobble during positioning or welding repair. The first fixing block 8 and the second fixing block 9 can move relative to each other to clamp or release the catheter being repaired. To facilitate clamping and fixing the catheter, the first fixing block 8 and the second fixing block 9 are respectively provided with a first arc-shaped recess 81 and a second arc-shaped recess 91 on their opposing clamping surfaces. The two arc-shaped recesses are used to jointly accommodate and conform to the outer circumferential surface of the catheter being repaired.

[0041] As shown, to facilitate the adjustable connection of the fixing block assembly, a connecting rod 10 can be connected between the first fixing block 8 and the second fixing block 9. The connecting rod 10 is threadedly connected to the two fixing blocks (e.g., ...). Figure 4 As indicated by the right arrow in the diagram), and with threads opposite to those of the two fixed blocks, the connecting rod 10 can drive the two fixed blocks closer or further apart when it rotates. Furthermore, corresponding connecting holes are provided on the two fixed blocks, through which a second bolt 104 passes and engages with a nut (as shown in the diagram). Figure 4 (As indicated by the left arrow in the image), tighten the two retaining blocks to clamp the conduit being repaired.

[0042] The working principle of the adjustable repair frame tooling provided by this utility model is as follows:

[0043] First, the threaded section of support rod 1 is inserted into the perforated workbench in the welding room and tightened. Then, according to the unique spatial shape of the conduit to be repaired, it can be quickly modularly assembled. The connecting modules (boss connecting block 2 and concave connecting block 3) are slid and locked on support rod 1. Connecting rod 4 and adapter components (adapter rod 5, first adapter 6 and second adapter 7) are installed, and the extension angle of connecting rod 4 and adapter components can be flexibly adjusted. This process fully demonstrates the high versatility and adaptability of the tooling. One set of tooling can meet the positioning requirements of various conduits, solving the drawbacks of the traditional "one pipe, one frame" fixture, and significantly reducing the initial manufacturing cost and subsequent maintenance cost.

[0044] During adjustment, by utilizing the perpendicular rotation of the axes at both ends of the adapter rod 5, the fixing block assembly at the end can be easily and precisely aligned with the conduit surface in three-dimensional space. This structure enables rapid, decoupled adjustment of complex spatial angles, and the operation is intuitive and simple. After all positions and angles are adjusted, tightening the set screws and bolts in sequence transforms the entire flexible module assembly into a highly rigid positioning frame, effectively preventing any displacement during welding and ensuring repair accuracy.

[0045] After positioning, the fixing block assembly can be loosened or the conduit can be removed for repair (some conduits have simple structures and do not require positioning block fixation). After repair, the conduit cut in half is precisely placed back onto the pre-positioned fixture according to the positioning points, and then brazing with a sleeve can be performed, thus completing the sleeve repair. Because the fixture is positioned according to the original shape of the conduit, and the overall structure is open and unobstructed, it provides the welder with excellent operating space and field of vision, thereby ensuring that the welding quality is not degraded due to the limitation of the fixture's shape and position.

[0046] After all work is completed, the entire tooling can be completely disassembled, and each component can be stored separately. This modular storage method greatly saves storage space. If a component is damaged during long-term use, it can be replaced individually without scrapping the entire tooling or customizing it, significantly reducing maintenance costs and time, and effectively handling unexpected repair tasks.

[0047] Finally, it should be noted that the features mentioned and / or shown in the above description of exemplary embodiments of the present invention can be combined in the same or similar manner with one or more other embodiments, combined with features in other embodiments, or substituted for corresponding features in other embodiments. These combined or substituted technical solutions should also be considered as included within the protection scope of the present invention.

Claims

1. An adjustable repair fixture for positioning and repairing conduits with sleeves, characterized in that, include: Support rod, the support rod being used for connection to the perforated worktable; A connecting module, comprising a boss connecting block and a recessed connecting block, wherein one of the boss connecting block and the recessed connecting block is slidably fitted onto the support rod and can be locked, wherein the boss on the boss connecting block can be inserted into the recess on the recessed connecting block, and wherein after insertion, the boss connecting block and the recessed connecting block can rotate relative to each other and be locked. A connecting rod, the connecting rod being used to pass through the other of the boss connecting block and the concave connecting block; The adapter assembly includes an adapter rod and a first adapter and a second adapter located at both ends of the adapter rod. The first adapter is slidably fitted onto the connecting rod and can be locked. The adapter rod is rotatably connected to the first adapter and the second adapter and can be locked at an angle. The rotation axes of the adapter rod and the first adapter and the second adapter are not coaxial with each other. A retaining block assembly for connection with the second adapter, comprising two retaining blocks capable of relative movement to jointly clamp or release the catheter being repaired.

2. The adjustable repair frame fixture according to claim 1, characterized in that: The boss connecting block is provided with a cylindrical boss, and the concave hole connecting block is provided with a blind hole that matches the cylindrical boss. The boss is inserted into the blind hole to achieve a rotational fit.

3. The adjustable repair frame fixture according to claim 2, characterized in that: The recessed connecting block is provided with a set screw hole leading to the blind hole, which is used to install a set screw to lock the relative angle between the boss connecting block and the recessed connecting block.

4. The adjustable repair frame tooling according to claim 1 or 2, characterized in that: Both the first adapter and the second adapter include a base and a connecting part disposed on the base. The base of the corresponding adapter is used to connect with the connecting rod or the fixing block assembly. The two ends of the adapter rod are provided with lugs in different directions. The lugs are connected to the connecting part of the corresponding adapter by a pin or bolt to form a rotational fit with different axes of rotation.

5. The adjustable repair fixture according to claim 4, characterized in that: The lugs at both ends of the adapter rod protrude perpendicularly to each other, so that the lugs and the corresponding adapters form a rotational fit with their rotation axes perpendicular to each other.

6. The adjustable repair fixture according to claim 4, characterized in that: The base of the first adapter is provided with a set screw hole for installing a set screw to lock the adapter to the connecting rod.

7. The adjustable repair frame fixture according to claim 1 or 2, characterized in that: A connecting rod is connected between the two fixing blocks. The connecting rod is threaded to the two fixing blocks and the thread direction is opposite to that of the two fixing blocks. When the connecting rod rotates, it can drive the two fixing blocks to move closer or further apart. The two fixing blocks are provided with corresponding connecting holes. The two fixing blocks are fastened to clamp the conduit being repaired by bolts and nuts that pass through the connecting holes.

8. The adjustable repair fixture according to claim 7, characterized in that: The two fixing blocks each have an arc-shaped recess on their opposing clamping surfaces, which together accommodate and fit the outer circumferential surface of the catheter being repaired.

9. The adjustable repair fixture according to claim 1 or 2, characterized in that: One end of the support rod is threaded for screwing into the perforated worktable.

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