Manual tool for processing large bend radius of metal conduit

Abstract

The utility model relates to a bending pipe auxiliary tool technical field especially relates to a manual tool for metal conduit big bending radius processing, the utility model discloses disc and rotary support structure are equipped with on the upper portion of bottom plate through shaft A, washer and gasket, and can rotate freely around shaft A, be provided with gyro wheel subassembly on rotary support structure, sliding support subassembly is assembled on the bottom plate, and is located disc one side, and the conduit passes through sliding support subassembly and is supported by sliding support subassembly, and the front end of conduit is placed between disc and gyro wheel subassembly and is clamped by both, and rotates rotary support structure and drives conduit to rotate with disc and completes bending work, the utility model discloses technical scheme solves the problem that the existing bending pipe machine in prior art cannot realize the conduit with too big bending radius, and the bending pipe machine manufacturing cost is high, and the bending pipe object is single.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending auxiliary tools, and in particular to a manual tool for processing large bending radii of metal conduits. Background Technology

[0002] Metal conduits are an important component of aircraft engines, used to transport media such as fuel, lubricating oil, oxygen, and compressed air. The technical requirements for conduit manufacturing include strict acceptance standards for conduit outer diameter and wall thickness deviations, surface quality, conduit bending radius deviations, and roundness at bends.

[0003] Pipe bending is usually done using a pipe bending machine or mold forming. When the bending radius of the conduit product is too large, ordinary pipe bending machines cannot achieve it, and mold manufacturing costs are high and the application is limited. Therefore, a manual tool for processing conduits with large bending radii was designed.

[0004] In view of the problems existing in the above-mentioned prior art, it is necessary to research and design a new type of manual tool for machining large bending radii of metal conduits, so as to overcome the problems existing in the prior art. Summary of the Invention

[0005] To address the technical problems of existing pipe bending machines being unable to handle pipes with excessively large bending radii, having high manufacturing costs, and being limited to a single application, this invention provides a manual tool for processing metal pipes with large bending radii. This utility model primarily utilizes a simple support and guide structure combined with a replaceable disc to process pipes of different specifications and bending radii, overcoming the limitation of molds having a single application.

[0006] The technical means adopted in this utility model are as follows:

[0007] A hand tool for machining large bending radii of metal conduits includes: a disc, a base plate, a shaft A, a sliding support assembly, a roller assembly, a conduit, and a rotating support structure;

[0008] Furthermore, the disk and rotating support structure are mounted on the upper part of the base plate via shaft A, washers and shims, and can rotate freely around shaft A;

[0009] Furthermore, a roller assembly is provided on the rotating support structure;

[0010] Furthermore, the sliding support assembly is mounted on the base plate and located on one side of the disk;

[0011] Furthermore, the conduit passes through and is supported by the sliding support assembly. The front end of the conduit is placed between the disc and the roller assembly and is held by them. Rotating the rotating support structure causes the conduit to rotate with the disc to complete the bending work.

[0012] Furthermore, a blind hole for assembling shaft A is provided in the middle of the base plate, and an internal hexagon threaded hole is machined in the center of the blind hole for fixing shaft A by internal hexagon head bolts;

[0013] Furthermore, multiple parallel elongated through holes are machined on one side of the base plate for assembling the sliding bracket assembly;

[0014] Furthermore, a support plate is fitted to the lower part of the base plate.

[0015] Furthermore, the circumference of the disc is machined with shaped grooves.

[0016] Furthermore, the disc is a replaceable part; different sizes of discs can be replaced depending on the bending radius of the conduit.

[0017] Furthermore, the rotating support structure includes: a rotating support adjustment section, a rotating support connecting block, and a rotating support extension section;

[0018] Furthermore, the rotating support has two adjustment sections;

[0019] Furthermore, the front ends of the two rotating bracket adjustment sections are respectively mounted to the upper and lower ends of the disc via shaft A, and the rear ends are fixedly connected via rotating bracket connecting blocks;

[0020] Furthermore, the rear of the two rotating supports is machined with adjustment through holes along the length direction for assembling the roller assembly;

[0021] Furthermore, the rotating bracket connecting block is threaded with a rotating bracket extension section. When necessary, a sleeve can be added to the rotating bracket extension section to make operation easier.

[0022] Furthermore, the roller assembly includes: a roller, shaft B, and fastening bolts and nuts;

[0023] Furthermore, the roller has a shaped groove machined on its circumference, which cooperates with the shaped groove on the disc to guide and clamp the guide tube;

[0024] Furthermore, shaft B is mounted between the two rotating bracket adjustment sections by fastening bolts and nuts, and moves and is fixed in position along the adjustment through hole;

[0025] Furthermore, the roller is mounted on shaft B and rotates around shaft B, applying force to the guide tube for rolling. There is basically no hard displacement during the entire processing, which effectively avoids scratches and ensures the surface quality of the guide tube after processing.

[0026] Furthermore, the sliding support assembly includes: a lower support, an upper support, a connecting rod, a fixed upper plate, and a top rod;

[0027] Furthermore, the lower bracket is a rectangular block structure with a shaped groove machined in the middle of its upper end. Blind holes for assembling connecting rods are machined on both sides of the shaped groove, and countersunk holes are opened at the bottom of the blind holes. A countersunk hole for mounting on the base plate is provided on the outer side of each blind hole. The lower bracket is fixed to the elongated through hole of the base plate by bolts and nuts.

[0028] Furthermore, the upper support is a rectangular block structure, with a corresponding shaped groove machined in the middle of its lower end, which is the same as the shaped groove on the lower support. The two shaped grooves cooperate to clamp the guide tube. Through holes for connecting rods to pass through are machined on both sides of the shaped groove.

[0029] Furthermore, the fixed upper plate is a rectangular block structure with a threaded hole vertically machined in the middle for assembling the top rod; countersunk holes for fixing the connecting rod are assembled on both sides of the threaded hole.

[0030] Furthermore, the top rod is equipped with a crossbar for easy rotation and force application;

[0031] Furthermore, the length of the connecting rod is greater than the height of the upper bracket and the depth of the blind hole on the lower bracket;

[0032] Furthermore, after the connecting rod passes through the upper bracket, its bottom end is inserted into the blind hole on the lower bracket and fixed with bolts and nuts. Its upper end abuts against the bottom end of the fixed upper plate and is fixedly connected to the fixed upper plate with bolts and nuts, ensuring that the upper bracket moves downward along the guide of the connecting rod under the action of the top rod to position the guide tube.

[0033] The usage process of this utility model is as follows:

[0034] In use, the guide tube is passed through the gap between the roller assembly and the disc, inserted into the shaped hole of the sliding support assembly, and the rotating push rod is used to press the guide tube. By applying external force on the extension of the rotating support, the roller assembly applies force to the guide tube and rolls it along the shaped groove on the outer circle of the disc, thereby achieving the processing of the guide tube with a large bending radius. The rotation angle of the extension of the rotating support is limited to 270° in principle, and the bending radius is processed within the range of R200 to R600, which can ensure the surface quality, bending radius deviation and roundness of the guide tube after processing.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] 1. The manual tool for processing large bending radii of metal conduits provided by this utility model reduces the contact area by adding washers and reduces weight by increasing the hollow design, making operation more labor-saving;

[0037] 2. The manual tool provided by this utility model for processing large bending radii of metal conduits has a circular groove on the circumference of the disc for applying fiber and friction force to the conduit during operation.

[0038] 3. The manual tool for processing large bending radii of metal conduits provided by this utility model has a rotating bracket structure consisting of a rotating bracket adjustment section, a rotating bracket connecting block, and a rotating bracket extension section, which facilitates disassembly and replacement of parts.

[0039] 4. The manual tool for processing large bending radii of metal conduits provided by this utility model has shaped holes on the mating surfaces of the upper and lower supports, which limit the conduit and increase the contact area for clamping force, thus ensuring both the clamping of the conduit and its roundness.

[0040] 5. The manual tool for processing large bending radii of metal conduits provided by this utility model has a roller assembly whose rollers rotate around an axis and apply force to the conduit for rolling. There is basically no hard displacement during the entire processing, which effectively avoids scratches and ensures the surface quality of the conduit after processing.

[0041] 6. The manual tool provided by this utility model for processing large bending radii of metal conduits can complete the processing of conduits with bending radii in the range of R200 to R600 within a 270° range, and can ensure the surface quality, bending radius deviation and roundness of the conduit after processing.

[0042] 7. The manual tool provided by this utility model for processing large bending radii of metal conduits produces bent pipes with no scratches or marks on the surface, accurate bending radius and satisfactory roundness. The appearance and dimensions of the product after bending meet the requirements of conduit manufacturing standards. The tool has low manufacturing cost and high efficiency.

[0043] In summary, the technical solution of this utility model solves the problems of existing pipe bending machines being unable to produce pipes with excessively large bending radii, and the high manufacturing cost and limited application of pipe bending. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is an axonometric view of the present invention;

[0046] Figure 2 This is a schematic diagram of the structure of this utility model;

[0047] Figure 3 This is an isometric view of the sliding bracket assembly structure of this utility model;

[0048] Figure 4 This is a schematic diagram of the sliding support assembly structure of this utility model;

[0049] Figure 5 This is a schematic diagram of the roller assembly of this utility model;

[0050] Figure 6 This is a comparison image of the present invention before and after bending the pipe.

[0051] In the diagram: 1. Disc; 2. Base plate; 3. Rotary bracket adjustment section; 4. Washer; 5. Shim; 6. Rotary bracket connecting block; 7. Rotary bracket extension section; 8. Shaft A; 9. Support plate; 10. Sliding bracket assembly; 10-1. Lower bracket; 10-2. Upper bracket; 10-3. Connecting rod; 10-4. Fixed upper plate; 10-5. Top rod; 11. Roller assembly; 11-1. Roller; 11-2. Shaft B; 12. Guide tube; 13. Hex socket head cap screw A; 14. Fastening bolt and nut; 15. Bolt and nut. Detailed Implementation

[0052] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0054] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0055] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0056] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0057] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0058] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0059] like Figure 1 , 2 As shown, this utility model provides a manual tool for processing metal conduits with large bending radii, comprising: a disc 1, a base plate 2, a shaft A8, a sliding support assembly 10, a roller assembly 11, a conduit 12, and a rotating support structure; the disc 1 and the rotating support structure are mounted on the upper part of the base plate 2 via the shaft A8, a washer 4, and a shim 5, and can rotate freely around the shaft A8; the roller assembly 11 is provided on the rotating support structure; the sliding support assembly 10 is mounted on the base plate 2 and located on one side of the disc 1; the conduit 12 passes through the sliding support assembly 10 and is supported by the sliding support assembly 10, the front end of the conduit 12 is placed between the disc 1 and the roller assembly 11 and is held by the two, and rotating the rotating support structure drives the conduit 12 to rotate with the disc 1 to complete the bending work.

[0060] like Figure 1 , 2 As shown, a blind hole for assembling shaft A8 is provided in the middle of the base plate 2. An internal hexagon thread hole is machined in the center of the blind hole for fixing shaft A8 by internal hexagon head bolt 13. Multiple parallel elongated through holes are machined on one side of the base plate 2 for assembling sliding bracket assembly 10. A support plate 9 is assembled on the lower part of the base plate 2.

[0061] like Figure 1 , 2 As shown, the circumference of the disc 1 is machined with a shaped groove. The disc 1 is a replaceable part, and different sizes of disc 1 can be replaced according to the different bending radius of the guide tube 12.

[0062] like Figure 1 , 2 As shown, the rotating bracket structure includes: a rotating bracket adjustment section 3, a rotating bracket connecting block 6, and a rotating bracket extension section 7; there are two rotating bracket adjustment sections 3; the front ends of the two rotating bracket adjustment sections 3 are respectively mounted to the upper and lower ends of the disc 1 via shaft A8, and the rear ends are fixedly connected via the rotating bracket connecting block 6; the rear of the two rotating brackets is machined with adjustment through holes for mounting the roller assembly 11 along the length direction; the rotating bracket extension section 7 is threaded onto the rotating bracket connecting block 6.

[0063] like Figure 5 As shown, the roller assembly 11 includes: roller 11-1, shaft B11-2, and fastening bolt and nut 14; the circumference of roller 11-1 is machined with a shaped groove, which cooperates with the shaped groove on the disc 1 to guide and clamp the guide tube 12; the shaft B11-2 is mounted between the two rotating bracket adjustment sections 3 by the fastening bolt and nut 14, and moves and is fixed in position along the adjustment through hole; the roller 11-1 is fitted on the shaft B11-2, rotates around the shaft B11-2, and applies force to the guide tube 12 for rolling. There is basically no hard displacement during the entire processing, which effectively avoids scratches and ensures the surface quality of the guide tube after processing.

[0064] like Figure 3 , 4 As shown, the sliding support assembly 10 includes: a lower support 10-1, an upper support 10-2, a connecting rod 10-3, a fixed upper plate 10-4, and a top rod 10-5. The lower support 10-1 is a rectangular block structure with a shaped groove machined in the middle of its upper end. Blind holes for assembling the connecting rod 10-3 are machined on both sides of the shaped groove, and countersunk holes are provided at the bottom of the blind holes. A countersunk hole for assembly on the base plate 2 is provided on the outer side of each blind hole. The lower support 10-1 is fixed to the elongated through hole of the base plate 2 by bolts and nuts 15. The upper support 10-2 is a rectangular block structure with a shaped groove corresponding to the shaped groove on the lower support 10-1 machined in the middle of its lower end. The two shaped grooves cooperate to clamp the guide tube 12. The connecting rod 10-3 is processed through the groove on both sides. Through hole; the fixed upper plate 10-4 is a rectangular block structure with a threaded hole vertically machined in the middle for assembling the top rod 10-5; countersunk holes for fixing the connecting rod 10-3 are installed on both sides of the threaded hole; the top rod 10-5 is equipped with a crossbar for easy rotation and force application; the length of the connecting rod 10-3 is greater than the height of the upper bracket 10-2 and the depth of the blind hole on the lower bracket 10-1; after the connecting rod 10-3 passes through the upper bracket 10-2, its bottom end is inserted into the blind hole on the lower bracket 10-1 and fixed by bolts and nuts 15, and its upper end abuts against the bottom end of the fixed upper plate 10-4 and is fixedly connected to the fixed upper plate 10-4 by bolts and nuts 15, ensuring that the upper bracket 10-2 moves downward along the guide of the connecting rod 10-3 under the action of the top rod 10-5 to position the guide tube 12.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model 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. Such 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 utility model.

Claims

1. A hand tool for machining large bending radii of metal conduits, characterized in that: The manual tool for machining large bending radii of metal conduits includes: a disc (1), a base plate (2), a shaft A (8), a sliding support assembly (10), a roller assembly (11), a conduit (12), and a rotating support structure; The disc (1) and the rotating support structure are mounted on the upper part of the base plate (2) via shaft A (8), washer (4) and shim (5), and can rotate freely around shaft A (8); The rotating support structure is provided with a roller assembly (11); The sliding bracket assembly (10) is mounted on the base plate (2) and located on one side of the disc (1); The conduit (12) passes through the sliding support assembly (10) and is supported by the sliding support assembly (10). The front end of the conduit (12) is placed between the disc (1) and the roller assembly (11) and is held by the two. Rotating the rotating support structure causes the conduit (12) to rotate with the disc (1) to complete the bending work.

2. The manual tool for machining large bending radii of metal conduits according to claim 1, characterized in that: The base plate (2) is provided with a blind hole in the middle for assembling shaft A (8). The center of the blind hole is machined with an internal hexagon thread hole for fixing shaft A (8) by internal hexagon head bolts (13). The base plate (2) has multiple parallel elongated through holes on one side for assembling the sliding bracket assembly (10). The bottom plate (2) is fitted with a support plate (9) at its lower part.

3. The hand tool for machining large bending radii of metal conduits according to claim 1, characterized in that: The disc (1) has a shaped groove machined around its circumference.

4. The hand tool for machining large bending radii of metal conduits according to claim 1, characterized in that: The disc (1) is a replaceable part. Different sizes of discs (1) can be replaced according to the different bending radius of the conduit (12).

5. The manual tool for machining large bending radii of metal conduits according to claim 1, characterized in that: The rotating support structure includes: a rotating support adjustment section (3), a rotating support connecting block (6), and a rotating support extension section (7); The rotating support adjustment section (3) consists of two parts; The front ends of the two rotating bracket adjustment sections (3) are respectively mounted on the upper and lower ends of the disk (1) via shaft A (8), and the rear ends are fixedly connected via rotating bracket connecting block (6); The rear of the two rotating brackets is machined with adjustment through holes along the length direction for assembling the roller assembly (11); The rotating bracket connecting block (6) is threadedly fitted with a rotating bracket extension section (7).

6. The hand tool for machining large bending radii of metal conduits according to claim 1, characterized in that: The roller assembly (11) includes: a roller (11-1), a shaft B (11-2), and a fastening bolt and nut (14). The roller (11-1) has a shaped groove machined on its circumference, which cooperates with the shaped groove on the disc (1) to guide and clamp the guide tube (12); The shaft B (11-2) is mounted between the two rotating bracket adjustment sections (3) by fastening bolts and nuts (14), and moves and is fixed in position along the adjustment through hole; The roller (11-1) is mounted on shaft B (11-2), rotates around shaft B (11-2), and applies force to the guide tube (12) to roll it.

7. The hand tool for machining large bending radii of metal conduits according to claim 1, characterized in that: The sliding support assembly (10) includes: a lower support (10-1), an upper support (10-2), a connecting rod (10-3), a fixed upper plate (10-4), and a top rod (10-5). The lower bracket (10-1) is a rectangular block structure with a shaped groove machined in the middle of its upper end. Blind holes for assembling connecting rods (10-3) are machined on both sides of the shaped groove. Countersunk holes are opened at the bottom of the blind holes. A countersunk hole for assembly on the base plate (2) is provided on the outer side of each blind hole. The lower bracket (10-1) is fixedly mounted on the elongated through hole of the base plate (2) by bolts and nuts (15). The upper support (10-2) is a rectangular block structure. A corresponding groove is machined in the middle of its lower end, which corresponds to the groove on the lower support (10-1). The two grooves cooperate to clamp the guide tube (12). Through holes for the connecting rod (10-3) to pass through are machined on both sides of the groove. The fixed upper plate (10-4) is a rectangular block structure with a threaded hole vertically machined in the middle for mounting the top rod (10-5); countersunk holes for fixing the connecting rod (10-3) are mounted on both sides of the threaded hole. The top rod (10-5) is equipped with a crossbar for easy rotation and force application; The length of the connecting rod (10-3) is greater than the height of the upper bracket (10-2) and the depth of the blind hole on the lower bracket (10-1); After the connecting rod (10-3) passes through the upper bracket (10-2), its bottom end is inserted into the blind hole on the lower bracket (10-1) and fixed by bolts and nuts (15). Its upper end abuts against the bottom end of the fixed upper plate (10-4) and is fixedly connected to the fixed upper plate (10-4) by bolts and nuts (15), so as to ensure that the upper bracket (10-2) moves downward along the connecting rod (10-3) under the action of the top rod (10-5) and positions the guide tube (12).

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