Pipe bending device
The copper tube is precisely bent by the limiting mechanism of the bending device, which solves the problem of errors in the bending radius and position parameters of the copper tube and realizes high-precision copper tube assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO SICHUAN IND CO LTD
- Filing Date
- 2025-06-16
- Publication Date
- 2026-06-16
AI Technical Summary
During the copper tube manufacturing process, errors in bending radius and position parameters can prevent the copper tube from fitting well with other components, affecting the cooling effect.
A pipe bending device is provided, including a first clamping mechanism, a second clamping mechanism, and a limiting mechanism. The limiting mechanism abuts against a preset bending point of the pipe body to ensure that the pipe body does not deviate or break during the bending process, and to precisely control the bending angle and radius.
This improved the bending accuracy and assembly quality of the copper tubes, ensuring that each bend met design requirements, preventing misalignment and breakage, and enhancing overall quality.
Smart Images
Figure CN224359195U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of pipe processing technology, and in particular to a pipe bending device. Background Technology
[0002] Copper pipes are widely used in various heating and cooling equipment due to their excellent thermal conductivity. For example, in air conditioners, indoor heat is absorbed by the refrigerant and then dissipated into the atmosphere through the copper pipes in the outdoor unit's condenser, thus transferring heat and achieving the purpose of cooling.
[0003] To increase the refrigerant's residence time in the condenser and ensure sufficient heat exchange between the refrigerant and the surrounding environment, the copper tubes in the condenser typically need to be bent before use. However, errors in parameters such as the bending radius and bending position during the copper tube manufacturing process can lead to poor fit between the copper tube and other components. Utility Model Content
[0004] Therefore, it is necessary to provide a pipe bending device to address the issue of improving the bending accuracy of pipes.
[0005] This application provides a pipe bending device, comprising:
[0006] A first clamping mechanism is used to clamp the first section of the tube body;
[0007] A second clamping mechanism is provided at a distance from the first clamping mechanism, and the second clamping mechanism is used to clamp the second section of the tube body;
[0008] A limiting mechanism is provided between the first clamping mechanism and the second clamping mechanism, with one end of the limiting mechanism fixedly connected to the first clamping mechanism and the other end of the limiting mechanism rotatably connected to the second clamping mechanism. The limiting mechanism is used to abut against a preset bend in the tube body.
[0009] The technical solution will be further explained below:
[0010] In one embodiment, the limiting mechanism includes:
[0011] A connecting frame, one end of which is fixedly connected to the first clamping mechanism, and the other end of which is rotatably connected to the second clamping mechanism;
[0012] A limiting frame is connected to the connecting frame. The limiting frame includes a first limiting part and a second limiting part. The first limiting part is used to abut against the outside of the preset bend of the tube body; the second limiting part is used to abut against the top side of the preset bend of the tube body.
[0013] In one embodiment, the limiting frame is movably connected to the connecting frame, the limiting frame is capable of moving radially relative to the connecting frame along the tube body, and an elastic element is provided between the limiting frame and the connecting frame.
[0014] In one embodiment, the connecting frame has a limiting groove that extends radially along the tube body, at least a portion of the limiting frame is movably inserted into the limiting groove, one end of the elastic member is connected to the bottom of the limiting groove, and the other end of the elastic member is connected to the limiting frame.
[0015] In one embodiment, the drive mechanism includes:
[0016] A movable rod, which is fixedly connected to the second clamping mechanism;
[0017] An electric push rod is provided, which abuts against the movable rod. The electric push rod is used to drive the movable rod to rotate in the direction away from the first limiting part of the tube body.
[0018] In one embodiment, the pipe bending device further includes an arc-shaped disk located on the side of the second clamping mechanism away from the first limiting portion. The arc-shaped disk has an arc-shaped guide groove, and a slider is provided on the movable rod. The slider is slidably disposed in the guide groove.
[0019] In one embodiment, the arc-shaped disk is provided with scale lines at intervals along the extension direction of the guide groove, the scale lines being used to indicate the angle through which the movable rod has rotated.
[0020] In one embodiment, both the first clamping mechanism and the second clamping mechanism include a base and a plurality of clamping blocks movably disposed on the base. The plurality of clamping blocks together enclose a cavity for accommodating the tube body. Adjacent clamping blocks are slidably connected by a sliding member so that the size of the cavity is adjustable.
[0021] In one embodiment, each of the clamping blocks is provided with a sliding groove, one end of the sliding member is slidably engaged with the sliding groove of one of the two adjacent clamping blocks, and the other end of the sliding member is slidably engaged with the sliding groove of the other clamping block.
[0022] When bending the pipe, the aforementioned pipe bending device first plans the preset bending point of the pipe, then inserts the pipe into the first clamping mechanism and the second clamping mechanism. The first clamping mechanism clamps and fixes the first segment of the pipe on one side of the preset bending point, and the second clamping mechanism clamps and fixes the second segment of the pipe on the other side of the preset bending point. The limiting mechanism abuts against the preset bending point of the pipe, and then drives the second clamping mechanism to rotate relative to the limiting mechanism. This causes the second segment of the pipe to bend relative to the first segment of the pipe at the preset bending point. Because the limiting mechanism abuts against the preset bending point of the pipe, it can limit the preset bending point of the pipe, ensuring that the pipe will not deviate or break during the bending process. This allows for precise control of the bending angle, radius, and position of the pipe, ensuring that the accuracy of each bend meets the design requirements, which is beneficial to improving the assembly accuracy and overall quality of the bent pipe. Attached Figure Description
[0023] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.
[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0025] Furthermore, the accompanying drawings are not drawn to a 1:1 scale, and the relative dimensions of the various components are shown as examples only and not necessarily to scale. In the accompanying drawings:
[0026] Figure 1 This is a schematic diagram of the structure of a pipe bending device according to an embodiment.
[0027] Figure 2 for Figure 1 The diagram shows a partial enlarged view of the pipe bending device at point A.
[0028] Figure 3 for Figure 1 The diagram shows the structure of the pipe bending device from another perspective.
[0029] Figure 4 for Figure 1 The exploded view of the pipe bending device shown.
[0030] Figure 5 This is a partial enlarged view of the first clamping mechanism / second clamping mechanism of a pipe bending device according to an embodiment.
[0031] Explanation of reference numerals in the attached figures:
[0032] 1. First clamping mechanism; 11. Base; 12. Clamping block; 121. Slide groove; 13. Sliding element; 14. Cavity; 2. Second clamping mechanism; 3. Limiting mechanism; 31. Limiting frame; 311. First limiting part; 312. Second limiting part; 32. Connecting frame; 321. Limiting groove; 33. Rotating shaft; 34. Elastic element; 41. Movable rod; 42. Electric push rod; 43. Slider; 50. Arc-shaped disk; 51. Guide groove; 52. Scale line; 60. Support leg. Detailed Implementation
[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.
[0035] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0036] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0037] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0038] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.
[0039] See Figure 1 This application provides a pipe bending device for bending pipes, wherein the pipes include, but are not limited to, copper pipes or other bendable pipes. Specifically, the pipe bending device of one embodiment includes a first clamping mechanism 1, a second clamping mechanism 2, and a limiting mechanism 3.
[0040] Specifically, the first clamping mechanism 1 is used to clamp the first section of the tube body to fix the first section of the tube body;
[0041] The second clamping mechanism 2 is arranged at an interval from the first clamping mechanism 1. The second clamping mechanism 2 is used to clamp the second section of the tube body to fix the second section of the tube body. The first section and the second section of the tube body refer to two sections at different positions on the tube body.
[0042] The limiting mechanism 3 is disposed between the first clamping mechanism 1 and the second clamping mechanism 2, with one end of the limiting mechanism 3 fixedly connected to the first clamping mechanism 1 and the other end rotatably connected to the second clamping mechanism 2. The limiting mechanism 3 is used to abut against the preset bending point of the tube body. The preset bending point of the tube body refers to the position where a bend is required, located between the first and second sections of the tube body.
[0043] When bending the pipe, the aforementioned pipe bending device first plans the preset bending point of the pipe, then inserts the pipe into the first clamping mechanism 1 and the second clamping mechanism 2. The first clamping mechanism 1 clamps and fixes the first segment of the pipe on one side of the preset bending point, and the second clamping mechanism 2 clamps and fixes the second segment of the pipe on the other side of the preset bending point. The limiting mechanism 3 abuts against the preset bending point of the pipe, and then drives the second clamping mechanism 2 to rotate relative to the limiting mechanism 3. This causes the second segment of the pipe to bend relative to the first segment of the pipe at the preset bending point. Since the limiting mechanism 3 abuts against the preset bending point of the pipe, it can limit the preset bending point of the pipe, ensuring that the pipe will not deviate or break during the bending process. This allows for precise control of the bending angle, radius, and position of the pipe, ensuring that the accuracy of each bend meets the design requirements, which is beneficial to improving the assembly accuracy and overall quality of the bent pipe.
[0044] See Figure 2 as well as Figure 3 In one embodiment, the limiting mechanism 3 includes a connecting frame 32 and a limiting frame 31, wherein one end of the connecting frame 32 is fixedly connected to the first clamping mechanism 1, and the other end of the connecting frame 32 is rotatably connected to the second clamping mechanism 2. For example, the connecting frame 32 is rotatably connected to the second clamping mechanism 2 through a rotating shaft 33.
[0045] The limiting frame 31 is connected to the connecting frame 32. The limiting frame 31 includes a first limiting part 311 and a second limiting part 312. The first limiting part 311 is used to abut against the outer side of the preset bend of the tube body, and the second limiting part 312 is used to abut against the top side of the preset bend of the tube body. The outer side of the preset bend refers to the side of the larger bend after the tube body is bent. The top side of the preset bend refers to the top surface of the bend after the tube body is bent.
[0046] With the first limiting part 311 abutting against the outside of the preset bend of the tube body and the second limiting part 312 abutting against the top side of the preset bend of the tube body, the tube body can be limited from the outside and top side of the preset bend of the tube body, further ensuring that the tube body will not deviate or break during the bending process, thereby enabling precise control of the bending angle, radius and position of the tube body.
[0047] See Figure 4The limiting frame 31 is movably connected to the connecting frame 32. The limiting frame 31 can move radially relative to the connecting frame 32 along the pipe body. An elastic element 34 is provided between the limiting frame 31 and the connecting frame 32. In this way, the limiting frame 31 can automatically adjust its position according to the pipe body of different diameters, thereby enabling the limiting frame 31 to adapt to pipe bodies of different diameters and improving the applicability of the pipe bending device.
[0048] Furthermore, there are multiple elastic elements 34 arranged in a linear array, thereby improving the stability of the movement of the limit frame 31.
[0049] See Figure 4 In some embodiments, the connecting frame 32 has a limiting groove 321 extending radially along the tube body. At least a portion of the limiting frame 31 is movably inserted into the limiting groove 321. One end of the elastic member 34 is connected to the bottom of the limiting groove 321, and the other end of the elastic member 34 is connected to the limiting frame 31. The limiting groove 321 can limit the movement direction of the limiting frame 31 and simultaneously fix the elastic member 34.
[0050] In some embodiments, the pipe bending device further includes a driving mechanism connected to the second clamping mechanism 2. The driving mechanism is used to drive the second clamping mechanism to rotate relative to the limiting mechanism 3 in the direction away from the first limiting part of the pipe body, so as to drive the pipe body to bend at the contact point between the limiting mechanism and the pipe body, thereby realizing automatic bending of the pipe body, avoiding the need for operators to manually bend the pipe, saving manpower, effectively preventing accidents from happening to operators during operation, and ensuring the personal safety of operators.
[0051] See Figure 1 The driving mechanism includes a movable rod 41 and an electric push rod 42, wherein the movable rod 41 is fixedly connected to the second clamping mechanism 2. The electric push rod 42 abuts against the movable rod 41 and drives the movable rod 41 to rotate in a direction away from the tube body and away from the first limiting part 311 (i.e., the inner side of the preset bending point of the tube body). By driving the movable rod 41 to rotate using the electric push rod 42, the second fixed frame is rotated, which in turn drives the second section of the tube body to bend relative to the first section of the tube body at the preset bending point, realizing automatic bending of the tube body. This avoids the need for manual bending by the operator, saves manpower, effectively prevents accidents during operation, and ensures the personal safety of the operator.
[0052] See Figure 1In some embodiments, the pipe bending device further includes an arc-shaped disk 50, located on the side of the second clamping mechanism opposite to the first limiting part 311. The arc-shaped disk 50 has an arc-shaped guide groove 51, and a slider 43 is provided on the movable rod 41, which is slidably disposed in the guide groove 51. By cooperating with the guide groove 51, the slider 43 can guide the movable rod 41, thereby ensuring that the second clamping mechanism 2 can drive the pipe body to bend according to a predetermined trajectory, ensuring the bending accuracy of the pipe body.
[0053] See Figure 1 In some embodiments, along the extension direction of the guide groove 51, the arc-shaped disk 50 is provided with scale lines 52 at intervals. The scale lines 52 are used to indicate the angle through which the movable rod 41 has rotated. The scale lines 52 can be used to observe the bending angle of the tube in real time during the bending process, thereby further improving the bending accuracy of the tube.
[0054] See Figure 5 Optionally, both the first clamping mechanism 1 and the second clamping mechanism 2 include a base 11 and multiple clamping blocks 12 movably disposed on the base 11. For example, there may be two, three, four, or more clamping blocks 12. The multiple clamping blocks 12 together form a cavity 14 for accommodating the pipe body. Adjacent clamping blocks 12 are slidably connected by a sliding member 13, so that the size of the cavity 14 is adjustable. This allows the first clamping mechanism 1 and the second clamping mechanism 2 to reinforce and fix pipe bodies of different diameters without damaging the surface and internal structure of the pipe body. It avoids problems such as pipe body cracking, wrinkling, and scratching that may occur with traditional pipe bending methods, ensuring the integrity and sealing of the pipe body, thereby guaranteeing the performance and service life of the pipe body.
[0055] See Figure 5 Each clamping block 12 has a sliding groove 121. One end of the sliding member 13 is slidably engaged with the sliding groove 121 of one of the two adjacent clamping blocks 12, and the other end of the sliding member 13 is slidably engaged with the sliding groove 121 of the other clamping block 12. In this way, by sliding the two adjacent clamping blocks 12 along the sliding member 13, the size of the cavity 14 can be adjusted, thereby achieving the clamping and fixing of pipes of different diameters.
[0056] join Figure 3 In some embodiments, the pipe bending device further includes a plurality of legs 60, which are supported on the bottom surface of the first clamping mechanism 1 and the bottom surface of the arc-shaped disk 50, thereby fixing the first clamping mechanism 1 and the arc-shaped disk 50.
[0057] 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.
[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A pipe bending device, characterized in that, include: A first clamping mechanism is used to clamp the first section of the tube body; A second clamping mechanism is provided at a distance from the first clamping mechanism, and the second clamping mechanism is used to clamp the second section of the tube body; A limiting mechanism is provided between the first clamping mechanism and the second clamping mechanism, with one end of the limiting mechanism fixedly connected to the first clamping mechanism and the other end of the limiting mechanism rotatably connected to the second clamping mechanism. The limiting mechanism is used to abut against a preset bend in the tube body.
2. The pipe bending device according to claim 1, characterized in that, The limiting mechanism includes: A connecting frame, one end of which is fixedly connected to the first clamping mechanism, and the other end of which is rotatably connected to the second clamping mechanism; A limiting frame is connected to the connecting frame. The limiting frame includes a first limiting part and a second limiting part. The first limiting part is used to abut against the outside of the preset bend of the tube body; the second limiting part is used to abut against the top side of the preset bend of the tube body.
3. The pipe bending device according to claim 2, characterized in that, The limiting frame is movably connected to the connecting frame, and the limiting frame can move radially relative to the connecting frame along the tube body. An elastic element is provided between the limiting frame and the connecting frame.
4. The pipe bending device according to claim 3, characterized in that, The connecting frame has a limiting groove that extends radially along the tube body. At least a portion of the limiting frame is movably inserted into the limiting groove. One end of the elastic member is connected to the bottom of the limiting groove, and the other end of the elastic member is connected to the limiting frame.
5. The pipe bending device according to claim 2, characterized in that, The pipe bending device further includes a driving mechanism, which is connected to the second clamping mechanism. The driving mechanism is used to drive the second clamping mechanism to rotate relative to the limiting mechanism toward the side of the pipe body away from the first limiting part, so as to drive the pipe body to bend at the contact point between the limiting mechanism and the pipe body.
6. The pipe bending device according to claim 5, characterized in that, The drive mechanism includes: A movable rod, which is fixedly connected to the second clamping mechanism; An electric push rod is provided, which abuts against the movable rod. The electric push rod is used to drive the movable rod to rotate in the direction away from the first limiting part of the tube body.
7. The pipe bending device according to claim 6, characterized in that, The pipe bending device also includes an arc-shaped disk located on the side of the second clamping mechanism away from the first limiting part. The arc-shaped disk has an arc-shaped guide groove, and a slider is provided on the movable rod. The slider is slidably disposed in the guide groove.
8. The pipe bending device according to claim 7, characterized in that, Along the extension direction of the guide groove, the arc-shaped disk is provided with scale lines at intervals, which are used to indicate the angle through which the movable rod has rotated.
9. The pipe bending device according to claim 1, characterized in that, Both the first clamping mechanism and the second clamping mechanism include a base and a plurality of clamping blocks movably disposed on the base. The plurality of clamping blocks together enclose a cavity for accommodating the tube. Adjacent clamping blocks are slidably connected by a sliding member so that the size of the cavity is adjustable.
10. The pipe bending device according to claim 9, characterized in that, Each of the clamping blocks is provided with a sliding groove. One end of the sliding member is slidably engaged with the sliding groove of one of the two adjacent clamping blocks, and the other end of the sliding member is slidably engaged with the sliding groove of the other clamping block.