Pipe bending system and pipe bending method

Abstract

This invention relates to the field of pipe processing technology, and discloses a pipe bending system and method. The pipe is laid on a curved surface. The pipe bending system measures the surface of the curved surface and controls the angle of the pipe based on the measurement results. The bending system includes a curved surface measuring device, a bending device, and a control device. The curved surface measuring device includes a measuring rod, a first frame, and an angle sensor. The measuring rod is rotatably connected to the first frame. The angle sensor collects the rotation angle signal of the measuring rod relative to the first frame in real time. The bending device includes a second frame, a first clamping assembly, and a second clamping assembly. The second clamping assembly can rotate relative to the second frame to adjust the relative position between the first and second clamping assemblies. The control device is electrically connected to the angle sensor. The control device receives the rotation angle signal and controls the rotation of the second clamping assembly relative to the second frame based on the rotation angle signal. This improves the bending accuracy of the pipe, thereby improving the fit between the pipe and the curved surface.

Description

Technical Field

[0001] This invention relates to the field of pipe processing technology, and in particular to a pipe bending system and a pipe bending method. Background Technology

[0002] In the prior art, measuring coils are usually set on the curved surface of the vacuum chamber of a tokamak device to measure the device's operating parameters. The sensing unit in the measuring coil can be a fiber optic current sensor, a temperature sensor, etc. In order to protect the sensing unit, it is usually placed inside the tube to avoid external substances (such as neutrons from the plasma in the vacuum chamber) from affecting the normal operation of the sensing unit.

[0003] In order to ensure the fit between the pipe fitting and the curved surface of the vacuum chamber, the pipe fitting is usually bent manually during the installation process. However, this can lead to poor bending accuracy and low fit between the pipe fitting and the curved surface of the vacuum chamber. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a pipe bending system that can improve the bending accuracy of pipes, thereby improving the fit between the pipe and the curved surface of the vacuum chamber, ensuring the installation effect between the pipe and the curved surface of the vacuum chamber, and solving the technical problem in the prior art where poor bending accuracy of pipes leads to low fit between the pipe and the curved surface of the vacuum chamber.

[0005] The present invention also aims to propose a pipe bending method based on the above-mentioned pipe bending system.

[0006] According to an embodiment of the present invention, a pipe bending system is provided, wherein the pipe is adapted to be laid on a curved surface. The pipe bending system is used to measure the surface of the curved surface and control the angle of the pipe according to the measurement results. The pipe bending system includes: a curved surface measuring device, which includes a measuring rod, a first frame, and an angle sensor. A drive wheel is connected to the bottom of the first frame. One end of the measuring rod is rotatably connected to the first frame, and the other end of the measuring rod is connected to a measuring wheel. Both the measuring wheel and the drive wheel are in rolling contact with the curved surface. A first end of the angle sensor is connected to the measuring rod, and a second end of the angle sensor is connected to the first frame. The angle sensor is used to collect data on the relative position of the measuring rod to the curved surface in real time. The first frame has a rotation angle signal; a pipe bending device, which includes a second frame, a first clamping assembly, and a second clamping assembly, the first clamping assembly and the second clamping assembly being sequentially disposed on the second frame and arranged along the length direction of the pipe, the first clamping assembly being fixedly connected to the second frame, and the second clamping assembly being rotatably engaged with the second frame, so that the second clamping assembly can rotate relative to the second frame to adjust the relative position between the first clamping assembly and the second clamping assembly; a control device, which is electrically connected to the angle sensor, and is used to receive the rotation angle signal and control the second clamping assembly to rotate relative to the second frame according to the rotation angle signal.

[0007] According to the pipe bending system of the present invention, by measuring the surface of the curved surface using the pipe bending system and controlling the angle of the pipe according to the measurement results, the bending accuracy of the pipe can be improved, thereby improving the fit between the pipe and the curved surface and ensuring the installation effect between the pipe and the curved surface. At the same time, compared with traditional manual pipe bending, the pipe bending system of this application can also improve the production efficiency of pipes, avoid excessive deformation of pipes caused by excessive force applied by operators, and further ensure the structural integrity of other components inside the pipe (such as measuring coils).

[0008] In some embodiments, the control device includes a data acquisition unit and a drive component. The data acquisition unit is disposed on the first frame and connected to the angle sensor via a cable. The data acquisition unit is used to receive the rotation angle signal. The drive component is disposed on the second frame and is communicatively connected to the data acquisition unit. The drive component is used to drive the second clamping component to rotate according to the rotation angle signal.

[0009] In some embodiments, the drive assembly includes a first drive member, a transmission member, and a guide member. The guide member is an arc-shaped guide rail fixed to the second frame. The transmission member includes a meshing worm gear and a worm. The worm gear is slidably disposed on the arc-shaped guide rail and fixedly connected to the second clamping assembly. The worm is rotatably disposed on the second frame. The first drive member is used to drive the worm to rotate according to the rotation angle signal.

[0010] In some embodiments, both the first clamping assembly and the second clamping assembly include a wheel frame, a first rotating wheel, and a second rotating wheel. The wheel frame is fixedly connected to the second frame. The first rotating wheel and the second rotating wheel are respectively mounted on the wheel frame. The axes of the first rotating wheel and the second rotating wheel are parallel to each other. A first annular groove is formed on the circumferential surface of the first rotating wheel, and a second annular groove is formed on the circumferential surface of the second rotating wheel. The first annular groove and the second annular groove cooperate to form a clamping cavity for accommodating and clamping the pipe.

[0011] In some embodiments, the first clamping assembly includes a plurality of the first clamping assemblies, which are spaced apart along the length direction of the tube.

[0012] In some embodiments, the pipe bending system further includes a second drive member for driving one of the first or second rollers to rotate.

[0013] In some embodiments, the diameter of the first rotating wheel of the second clamping assembly is greater than the diameter of the first rotating wheel of the first clamping assembly, and the diameter of the second rotating wheel of the second clamping assembly is greater than the diameter of the second rotating wheel of the first clamping assembly. The second driving member is used to drive the first rotating wheel or the second rotating wheel of the first clamping assembly to rotate.

[0014] In some embodiments, the bottom of the first frame is connected to two drive wheels, which are spaced apart in the direction of movement of the first frame; and / or, the top of the first frame is provided with a handle.

[0015] In some embodiments, the surface measuring device further includes an elastic element, one end of which is connected to the first frame and the other end of which is connected to the measuring rod. The elastic element is configured to pull the measuring rod to bring the measuring wheel into contact with the surface.

[0016] According to an embodiment of the present invention, a pipe bending method includes the following steps: controlling a surface measuring device to move on a curved surface and acquiring the rotation angle signal of the measuring rod relative to the first frame in real time; transmitting the rotation angle signal to a control device; and controlling the second clamping assembly of the pipe bending device to rotate according to the rotation angle signal.

[0017] The pipe bending method according to embodiments of the present invention can improve the bending accuracy and manufacturing efficiency of pipes, and enhance the fit between pipes and curved surfaces.

[0018] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. Attached Figure Description

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of a surface measuring device according to some embodiments of the present invention; Figure 2 This is a schematic diagram of the pipe bending device and pipe fittings in some embodiments of the present invention. Figure 3 for Figure 2 A magnified view of region I in the middle; Figure 4 This is a schematic diagram of a second clamping component and a driving component according to some embodiments of the present invention; Figure 5 This is a flowchart illustrating the steps of a pipe bending method according to some embodiments of the present invention.

[0020] Figure label: 100. Surface measuring device; 110. Measuring rod; 120. First frame; 130. Angle sensor; 140. Drive wheel; 150. Measuring wheel; 160. Handle; 170. Elastic element; 200. Pipe bending device; 210. Second rack; 220. First clamping assembly; 221. Wheel frame; 222, First rotating wheel; 2221, First annular groove; 223. Second rotating wheel; 2231. Second annular groove; 230. Second clamping assembly; 300. Control device; 310. Data acquisition unit; 320. Driver components; 321. First driving component; 322. Transmission component; 3221. Worm gear; 3222. Worm; 323. Guide components; 324. Fixture; 325. Second bearing; 1100. Pipe fittings. Detailed Implementation

[0021] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention 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 invention.

[0023] The pipe bending system of the present invention is described below with reference to the accompanying drawings.

[0024] Combination Figures 1-4 As shown, a pipe bending system according to an embodiment of the present invention includes: a surface measuring device 100, a pipe bending device 200, and a control device 300.

[0025] The pipe fitting 1100 is suitable for being laid on a curved surface (not shown in the figure). The pipe fitting bending system is used to measure the surface of the curved surface and control the angle of the pipe fitting 1100 based on the measurement results. This improves the bending quality of the pipe fitting 1100 and ensures the fit between the pipe fitting 1100 and the curved surface.

[0026] like Figure 1As shown, the curved surface measuring device 100 includes a measuring rod 110, a first frame 120, and an angle sensor 130. A drive wheel 140 is connected to the bottom of the first frame 120. One end of the measuring rod 110 is rotatably connected to the first frame 120, and the other end is connected to a measuring wheel 150. Both the measuring wheel 150 and the drive wheel 140 are in rolling contact with the curved surface. The first end of the angle sensor 130 is connected to the measuring rod 110, and the second end is connected to the first frame 120. The angle sensor 130 is used to collect the rotation angle signal of the measuring rod 110 relative to the first frame 120 in real time. This allows the measurement rod 110 to obtain its rotation angle relative to the first frame 120, facilitating the subsequent control device 300 to use this rotation angle data to control the pipe bending device 200 to bend the pipe fitting 1100, ensuring the bending quality of the pipe fitting 1100.

[0027] By setting a drive wheel 140 at the bottom of the first frame 120 and a measuring wheel 150 at the other end of the measuring rod 110, and setting the measuring wheel 150 and the drive wheel 140 to make rolling contact with the curved surface, the curved surface measuring device 100 can move along the curved surface, reducing the difficulty of movement of the curved surface measuring device 100 when measuring on the curved surface, facilitating real-time measurement of the curved surface, ensuring measurement accuracy, and facilitating subsequent bending of the pipe fitting 1100.

[0028] In a specific example, when the measuring wheel 150 rolls into contact with the curved surface, the surface of the curved surface exerts a certain reaction force on the measuring wheel 150. This reaction force is transmitted to the measuring rod 110 through the measuring wheel 150. At this time, the measuring rod 110 will rotate relative to the first frame 120. Since one end of the measuring rod 110 is rotatably connected to the first frame 120, the measuring rod 110 can rotate relative to the first frame 120, thereby causing the measuring rod 110 to have a certain rotation angle deviation relative to the first frame 120. The angle sensor 130 can collect this rotation angle signal to achieve the purpose of measuring the curved surface.

[0029] Meanwhile, by connecting the first end of the angle sensor 130 to the measuring rod 110 and the second end of the angle sensor 130 to the first frame 120, the difficulty of measuring the rotation signal of the measuring rod 110 relative to the first frame 120 can be reduced.

[0030] Combination Figure 2 , Figure 3 and Figure 4As shown, the pipe bending device 200 includes a second frame 210, a first clamping assembly 220, and a second clamping assembly 230. The first clamping assembly 220 and the second clamping assembly 230 are sequentially mounted on the second frame 210 and arranged along the length of the pipe 1100. The first clamping assembly 220 is fixedly connected to the second frame 210, and the second clamping assembly 230 is rotatably coupled to the second frame 210, allowing the second clamping assembly 230 to rotate relative to the second frame 210 to adjust the relative position between the first clamping assembly 220 and the second clamping assembly 230. This enables the bending of the pipe 1100 clamped between the first clamping assembly 220 and the second clamping assembly 230, facilitating the obtaining of a pipe 1100 that conforms to the curved surface.

[0031] It should be noted that when transporting the pipe fitting 1100 to the installation point of the tokamak device, the pipe fitting 1100 is usually coiled and stacked for convenient transportation. This can easily cause slight deformation of the pipe fitting 1100, which is not convenient for subsequent bending of the pipe fitting 1100. This application solves this problem by sequentially arranging the first clamping component 220 and the second clamping component 230 on the second frame 210 and along the length of the pipe fitting 1100, and fixing the first clamping component 220 to the second frame 210. This allows the first clamping component 220 to straighten the deformed pipe fitting 1100 before bending it, making the pipe fitting 1100 a straight pipe, which facilitates the subsequent bending of the pipe fitting 1100 clamped between the first clamping component 220 and the second clamping component 230.

[0032] Control device 300 (the specific structure of control device 300 can be combined with...) Figure 1 , Figure 2 and Figure 4 (For understanding) Electrically connected to the angle sensor 130, the control device 300 receives the angle signal and controls the second clamping assembly 230 to rotate relative to the second frame 210 according to the angle signal. This adjusts the relative position between the first clamping assembly 220 and the second clamping assembly 230, facilitating the bending of the pipe 1100 clamped between the first clamping assembly 220 and the second clamping assembly 230, thereby obtaining a pipe 1100 with a high degree of conformity to the curved surface.

[0033] At the same time, the control device 300 can reduce the difficulty of rotating the second clamping assembly 230 relative to the second frame 210.

[0034] As can be seen from the above structure, the pipe bending system of this embodiment of the invention measures the surface of the curved surface using the curved surface measuring device 100, and controls the second clamping assembly 230 to rotate relative to the second frame 210 based on the measurement results using the control device 300, thereby controlling the bending angle of the pipe 1100. This improves the bending accuracy of the pipe 1100, thereby improving the fit between the pipe 1100 and the curved surface and ensuring the installation effect between the pipe 1100 and the curved surface.

[0035] At the same time, compared with traditional manual pipe bending, the pipe bending system of this application can also improve the production efficiency of pipe fitting 1100, avoid excessive deformation of pipe fitting 1100 due to excessive force applied by the operator, and further ensure the structural integrity of other components inside pipe fitting 1100 (such as measuring coil).

[0036] It is understandable that, compared with the prior art, this application can not only improve the bending accuracy of the pipe fitting 1100 and enhance the fit between the pipe fitting 1100 and the curved surface, but also improve the production efficiency of the pipe fitting 1100 and avoid excessive deformation of the pipe fitting 1100 due to excessive force applied by the operator, thereby ensuring the structural integrity of other components inside the pipe fitting 1100 (such as measuring coils).

[0037] In some embodiments, the measuring rod 110 and the measuring wheel 150, the measuring rod 110 and the first frame 120, and the first frame 120 and the drive wheel 140 are all rotatably connected by a first bearing (not shown in the figure). The first bearing can reduce the difficulty of rotatably connecting the measuring rod 110 and the measuring wheel 150, the measuring rod 110 and the first frame 120, and the first frame 120 and the drive wheel 140, which facilitates the rolling contact between the measuring wheel 150 and the drive wheel 140 and the curved surface, and also ensures the rotational stability of one end of the measuring rod 110 relative to the first frame 120.

[0038] In some embodiments, combined with Figure 1 , Figure 2 and Figure 4 As shown, the control device 300 includes a data acquisition unit 310 and a drive assembly 320. The data acquisition unit 310 is mounted on the first frame 120 and connected to the angle sensor 130 via a cable (not shown). The data acquisition unit 310 is used to receive rotation angle signals. The drive assembly 320 is mounted on the second frame 210 and is communicatively connected to the data acquisition unit 310. The drive assembly 320 is used to drive the second clamping assembly 230 to rotate according to the rotation angle signals. By mounting the data acquisition unit 310 on the first frame 120, the first frame 120 can effectively support the data acquisition unit 310, improving the positional stability of the data acquisition unit 310 and ensuring its working performance.

[0039] Meanwhile, the cable can reduce the difficulty of connecting the data acquisition unit 310 and the angle sensor 130, and realize the communication connection between the data acquisition unit 310 and the angle sensor 130, so that the data acquisition unit 310 can effectively receive the angle signal, which is convenient for subsequent control of the second clamping component 230.

[0040] Furthermore, by placing the drive component 320 on the second frame 210 and communicating with the data acquisition unit 310, and configuring the drive component 320 to drive the second clamping component 230 to rotate according to the angle signal, not only can the second frame 210 effectively support the drive component 320 and ensure the positional stability of the drive component 320, but the drive component 320 can also reduce the difficulty of rotating the second clamping component 230, thereby enabling the second clamping component 230 to rotate relative to the second frame 210, thereby adjusting the relative position between the first clamping component 220 and the second clamping component 230, which facilitates bending the pipe 1100 clamped between the first clamping component 220 and the second clamping component 230, thereby obtaining a pipe 1100 that fits the curved surface.

[0041] In some embodiments, combined with Figure 2 and Figure 4 As shown, the drive assembly 320 includes a first drive member 321, a transmission member 322, and a guide member 323. The guide member 323 is an arc-shaped guide rail, which is fixed on the second frame 210. The transmission member 322 includes a worm gear 3221 and a worm 3222 that mesh with each other. The worm gear 3221 is slidably disposed on the arc-shaped guide rail and fixedly connected to the second clamping assembly 230. The worm 3222 is rotatably disposed on the second frame 210. The first drive member 321 is used to drive the worm 3222 to rotate according to the rotation angle signal. This causes the worm gear 3222 to rotate and drive the worm wheel 3221 to rotate, thereby causing the worm wheel 3221 to slide relative to the arc-shaped guide rail. Since the worm wheel 3221 is fixedly connected to the second clamping assembly 230, the second clamping assembly 230 can rotate relative to the second frame 210 along the extension direction of the arc-shaped guide rail, thereby adjusting the relative position between the first clamping assembly 220 and the second clamping assembly 230, which facilitates bending of the pipe 1100 clamped between the first clamping assembly 220 and the second clamping assembly 230.

[0042] Meanwhile, the guide 323 of the arc-shaped guide rail also helps to improve the positional accuracy of the second clamping assembly 230 during rotation, so as to accurately adjust the bending angle of the tube 1100.

[0043] In a specific example, after the angle sensor 130 acquires the rotation angle signal of the measuring rod 110 relative to the first frame 120, the angle sensor 130 transmits the rotation angle signal to the data acquisition unit 310. The data acquisition unit 310 processes and calculates the rotation angle signal to obtain the stroke required by the first drive member 321 under the rotation deviation angle. The data acquisition unit 310 transmits this stroke data to the first drive member 321, and the first drive member 321 drives the worm gear 3222 to rotate. Because the worm gear 3222 meshes with the worm wheel 3221, the worm wheel 3221 and the second clamping assembly 230 slide relative to the guide member 323, thereby adjusting the relative position between the first clamping assembly 220 and the second clamping assembly 230, so that the second clamping assembly 230 has a certain rotation angle difference relative to the first clamping assembly 220. This angle difference is the rotation angle of the measuring rod 110 relative to the first frame 120, that is, the bending angle required when the tube 1100 is in contact with the curved surface.

[0044] In some embodiments, such as Figure 4 As shown, the drive assembly 320 also includes two spaced-apart fixed seats 324, both of which are fixedly connected to the second frame 210. The opposite ends of the worm gear 3222 are rotatably connected to the fixed seats 324 via second bearings 325. This allows the worm gear 3222 to be rotatably mounted on the second frame 210.

[0045] Meanwhile, the second bearing 325 can reduce the difficulty of rotating the worm 3222 and the fixed seat 324, thereby ensuring the reliability of the rotation of the worm 3222 relative to the fixed seat 324, and thus ensuring the stability of the rotation of the worm 3222 relative to the second frame 210.

[0046] In some embodiments, such as Figure 4 As shown, the first driving member 321 is disposed on one of the fixed seats 324 on the side opposite to the worm 3222. The output end of the first driving member 321 is fixedly connected to the worm 3222 so as to drive the worm 3222 to rotate using the first driving member 321. This allows the first driving member 321 to drive the worm 3222 to rotate according to the rotation angle signal, thereby facilitating the rotation of the worm wheel 3221 by the worm 3222 to drive the second clamping assembly 230 to rotate.

[0047] In some embodiments, combined with Figure 2 , Figure 3 and Figure 4As shown, both the first clamping assembly 220 and the second clamping assembly 230 include a wheel frame 221, a first rotating wheel 222 and a second rotating wheel 223. The wheel frame 221 is fixedly connected to the second frame 210. The first rotating wheel 222 and the second rotating wheel 223 are respectively mounted on the wheel frame 221. The axes of the first rotating wheel 222 and the second rotating wheel 223 are parallel to each other. A first annular groove 2221 is formed on the circumferential surface of the first rotating wheel 222, and a second annular groove 2231 is formed on the circumferential surface of the second rotating wheel 223. The first annular groove 2221 and the second annular groove 2231 cooperate to form a clamping cavity for accommodating and clamping the pipe fitting 1100. Specifically, by fixing the wheel frame 221 to the second frame 210, the first wheel 222 and the second wheel 223 are respectively installed on the wheel frame 221, so that the second frame 210 can stably support the wheel frame 221, thereby facilitating the effective support of the first wheel 222 and the second wheel 223 by the wheel frame 221, and ensuring the positional stability of the first wheel 222 and the second wheel 223.

[0048] Meanwhile, by setting the axes of the first rotating wheel 222 and the second rotating wheel 223 to be parallel to each other, the first rotating wheel 222 and the second rotating wheel 223 are at the same height, thereby making the first annular groove 2221 on the circumference of the first rotating wheel 222 and the second annular groove 2231 on the circumference of the second rotating wheel 223 at the same height. This makes it easier to clamp the pipe fitting 1100 at the same height, ensuring the positional stability and accuracy of the pipe fitting 1100, which is beneficial for the subsequent bending work of the pipe fitting 1100.

[0049] In addition, the first annular groove 2221 and the second annular groove 2231 can reduce the difficulty of clamping the pipe fitting 1100.

[0050] It should be noted that the driving component 320 mentioned above, which drives the second clamping component 230 to rotate according to the angle signal, can be understood as the driving component 320 driving the wheel frame 221 of the second clamping component 230 to rotate, thereby driving the entire second clamping component 230 to rotate, so as to adjust the relative position between the first clamping component 220 and the second clamping component 230.

[0051] In some embodiments, combined with Figure 2 and Figure 4 As shown, the worm gear 3221 is slidably mounted on the arc-shaped guide rail and fixedly connected to the wheel frame 221 of the second clamping assembly 230, so that the drive assembly 320 can drive the wheel frame 221 of the second clamping assembly 230 to rotate, thereby driving the entire second clamping assembly 230 to rotate.

[0052] In some embodiments, the first wheel 222 and the second wheel 223 are rotatably connected to the wheel frame 221 via a third bearing (not shown in the figure). The third bearing can reduce the installation difficulty of the first wheel 222, the second wheel 223 and the wheel frame 221, and also ensure the rotational reliability of the first wheel 222 and the second wheel 223 relative to the wheel frame 221.

[0053] In the description of this invention, features defined as "first," "second," and "third" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0054] In some embodiments, such as Figure 2 As shown, the first clamping assembly 220 includes multiple first clamping assemblies 220, which are arranged at intervals along the length direction of the pipe fitting 1100. This improves the stability of clamping the pipe fitting 1100. Furthermore, because the multiple first clamping assemblies 220 have a certain length when arranged at intervals along the length direction of the pipe fitting 1100, they can enhance the straightening effect on the pipe fitting 1100, which is beneficial for ensuring the bending effect of the pipe fitting 1100 between the subsequent first clamping assembly 220 and the second clamping assembly 230.

[0055] In specific examples, such as Figure 2 As shown, the first clamping assembly 220 has three parts, and the second clamping assembly 230 has one part.

[0056] In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0057] In some embodiments, the pipe bending system further includes a second driving member (not shown in the figure), which drives one of the first rollers 222 or the second roller 223 to rotate. This means that the second driving member can drive the first roller 222 or the second roller 223 of one of the multiple first clamping assemblies 220 to rotate, or it can drive the first roller 222 or the second roller 223 of the second clamping assembly 230 to rotate. Through the above configuration, the pipe 1100 in the clamping cavity can move along the length direction of the pipe 1100 along one of the first rollers 222 or the second roller 223, thereby reducing the difficulty of moving the external pipe 1100 from the first clamping assembly 220 to the second clamping assembly 230. This allows the pipe bending device 200 to continuously bend the pipe 1100, thereby improving the bending efficiency of the pipe 1100.

[0058] In a specific example, when the second driving member drives one of the first rotating wheels 222 to rotate, the first rotating wheel 222 rotates to drive the pipe 1100 in the first annular groove 2221 to move. Since the pipe 1100 is also located in the second annular groove 2231 of the second rotating wheel 223, the pipe 1100 can drive the second rotating wheel 223 to rotate when it moves. At this time, the first rotating wheel 222 and the second rotating wheel 223 rotate at the same time, so that the pipe 1100 can move from the first clamping assembly 220 along the length direction of the pipe 1100 to the second clamping assembly 230. After the pipe 1100 is bent, it is removed from the receiving cavity of the second clamping assembly 230.

[0059] In some embodiments, the second drive element is formed as a stepper motor.

[0060] In some embodiments, combined with Figure 2 , Figure 3 and Figure 4 As shown, the diameter of the first rotating wheel 222 of the second clamping assembly 230 is larger than the diameter of the first rotating wheel 222 of the first clamping assembly 220, and the diameter of the second rotating wheel 223 of the second clamping assembly 230 is larger than the diameter of the second rotating wheel 223 of the first clamping assembly 220. The second driving member is used to drive the first rotating wheel 222 or the second rotating wheel 223 of the first clamping assembly 220 to rotate. By setting the diameter of the first rotating wheel 222 of the second clamping assembly 230 to be larger than the diameter of the first rotating wheel 222 of the first clamping assembly 220, and setting the diameter of the second rotating wheel 223 of the second clamping assembly 230 to be larger than the diameter of the second rotating wheel 223 of the first clamping assembly 220, the contact length between the first rotating wheel 222 and the second rotating wheel 223 of the second clamping assembly 230 and the pipe 1100 is longer when rotating one revolution, further improving the clamping stability of the pipe 1100 when bending between the first clamping assembly 220 and the second clamping assembly 230.

[0061] Meanwhile, the diameter of the rollers (first roller 222 and second roller 223) of the first clamping assembly 220 is smaller than the diameter of the rollers (first roller 222 and second roller 223) of the second clamping assembly 230, so that the first roller 222 or the second roller 223 of the first clamping assembly 220 can be driven to rotate with a smaller power second drive component, which can save costs in the selection of materials for the second drive component of the pipe bending system to a certain extent.

[0062] In a specific example, the second driving member is used to drive the first rotating wheel 222 or the second rotating wheel 223 of the first clamping assembly 220 to rotate.

[0063] In some embodiments, such as Figure 1As shown, the bottom of the first frame 120 is connected to two drive wheels 140, which are spaced apart in the direction of movement of the first frame 120. This allows the two drive wheels 140 to effectively support the first frame 120, improving the positional stability of the first frame 120.

[0064] In some embodiments, such as Figure 1 As shown, a handle 160 is provided on the top of the first frame 120. The handle 160 reduces the difficulty for operators to use the surface measuring device 100, making it easier for operators to move the entire surface measuring device 100 on the curved surface by holding the handle 160, thereby facilitating the surface measuring device 100 to measure the surface of the curved surface.

[0065] In some embodiments, the handle 160 is provided with an adapter (not shown in the figure). When the surface measuring device 100 needs to measure the surface of a curved surface at a higher position, it is difficult for the operator to directly operate the handle 160. By providing an adapter on the handle 160, the operator can indirectly operate the handle 160 through the adapter, thereby reducing the difficulty of operating the handle 160 and enabling the operator to use the surface measuring device 100 to complete the measurement of the surface of a curved surface at a higher position.

[0066] In some embodiments, such as Figure 1 As shown, the surface measuring device 100 also includes an elastic element 170. One end of the elastic element 170 is connected to the first frame 120, and the other end is connected to the measuring rod 110. The elastic element 170 is configured to pull the measuring rod 110 so that the measuring wheel 150 is in close contact with the surface. This prevents the measuring wheel 150 from detaching from the surface, ensuring a tight fit between the measuring wheel 150 and the surface, which helps to guarantee the testing accuracy of the surface measuring device 100.

[0067] It should be noted that the curved surface has a certain reaction force on the measuring wheel 150. This reaction force is transmitted to the measuring rod 110 through the measuring wheel 150. At this time, the measuring rod 110 rotates relative to the first frame 120. When the measuring rod 110 rotates relative to the first frame 120 in a direction away from the curved surface, it may cause the measuring wheel 150 to detach from the curved surface. At this time, since one end of the elastic element 170 is connected to the first frame 120, the elastic element 170 undergoes elastic deformation due to the pull of the measuring rod 110. The elastic element 170 exerts a pulling force on the measuring rod 110. This pulling force acts on the measuring wheel 150 through the measuring rod 110, causing the measuring wheel 150 to move towards the curved surface and fit tightly against it.

[0068] In a specific example, the elastic element 170 is formed as a tension spring.

[0069] The pipe bending method of the present invention is described below with reference to the accompanying drawings.

[0070] The pipe bending method is based on a pipe bending system, which is the aforementioned pipe bending system. The specific structure of the pipe bending system will not be described in detail here.

[0071] like Figure 5 As shown, a pipe bending method according to an embodiment of the present invention includes the following steps: S1. Control the surface measuring device 100 to move on the surface and collect the rotation angle signal of the measuring rod 110 relative to the first frame 120 in real time.

[0072] In the above steps, the rotation angle signal of the measuring rod 110 relative to the first frame 120 can be initially obtained.

[0073] S2. Send the angle signal to the control device 300.

[0074] In the above steps, the data acquisition unit 310 in the control device 300 can receive the angle signal and process and calculate the stroke of the first drive member 321. The first drive member 321 can receive the stroke command and perform the action.

[0075] S3. The control device 300 controls the second clamping component 230 of the pipe bending device 200 to rotate according to the rotation angle signal.

[0076] In the above steps, a certain bending angle is made between the second clamping component 230 and the first clamping component 220 to facilitate subsequent angular bending of the pipe 1100, so as to ensure the fit between the pipe 1100 and the curved surface.

[0077] As can be seen from the above method, the pipe bending method of the present invention can improve the bending accuracy of the pipe 1100 and improve the fit between the pipe 1100 and the curved surface.

[0078] In some embodiments, after the pipe fitting 1100 is processed, it is necessary to lay the pipe fitting 1100 and fix it to the curved surface to further ensure the fit between the pipe fitting 1100 and the curved surface, and to ensure the reliability of the connection between the pipe fitting 1100 and the curved surface.

[0079] In some embodiments, the pipe fitting 1100 can be fixed to the curved surface by welding, snap-fitting, or other methods.

[0080] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0081] Figure 2 The above illustration shows three first clamping components 220 for illustrative purposes. However, those skilled in the art who have read the above technical solution will obviously understand that applying this solution to one, two, four or more first clamping components 220 would also fall within the protection scope of this invention.

[0082] Other components of the pipe bending system and pipe bending method according to embodiments of the present invention, such as the angle sensor 130 and the second driving member, are known to those skilled in the art and will not be described in detail here.

[0083] In the description of this specification, references to terms such as "embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0084] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pipe bending system, characterized in that, The fitting (1100) is adapted to be laid on a curved surface, the fitting bending system being used to measure the surface of the curved surface and control the angle of the fitting (1100) based on the measurement results, the fitting bending system comprising: A surface measuring device (100) includes a measuring rod (110), a first frame (120), and an angle sensor (130). The bottom of the first frame (120) is connected to a drive wheel (140). One end of the measuring rod (110) is rotatably connected to the first frame (120), and the other end of the measuring rod (110) is connected to a measuring wheel (150). Both the measuring wheel (150) and the drive wheel (140) are in rolling contact with the surface. The first end of the angle sensor (130) is connected to the measuring rod (110), and the second end of the angle sensor (130) is connected to the first frame (120). The angle sensor (130) is used to collect the rotation angle signal of the measuring rod (110) relative to the first frame (120) in real time. A pipe bending device (200) includes a second frame (210), a first clamping assembly (220), and a second clamping assembly (230). The first clamping assembly (220) and the second clamping assembly (230) are sequentially disposed on the second frame (210) and arranged along the length direction of the pipe fitting (1100). The first clamping assembly (220) is fixedly connected to the second frame (210), and the second clamping assembly (230) is rotatably engaged with the second frame (210), so that the second clamping assembly (230) can rotate relative to the second frame (210) to adjust the relative position between the first clamping assembly (220) and the second clamping assembly (230). A control device (300) is electrically connected to the angle sensor (130). The control device (300) is used to receive the angle signal and control the second clamping assembly (230) to rotate relative to the second frame (210) according to the angle signal.

2. The pipe bending system according to claim 1, characterized in that, The control device (300) includes a data acquisition unit (310) and a drive assembly (320). The data acquisition unit (310) is located on the first frame (120) and connected to the angle sensor (130) via a cable. The data acquisition unit (310) is used to receive the rotation angle signal. The drive assembly (320) is located on the second frame (210) and is communicatively connected to the data acquisition unit (310). The drive assembly (320) is used to drive the second clamping assembly (230) to rotate according to the rotation angle signal.

3. The pipe bending system according to claim 2, characterized in that, The drive assembly (320) includes a first drive member (321), a transmission member (322), and a guide member (323). The guide member (323) is an arc-shaped guide rail, which is fixed on the second frame (210). The transmission member (322) includes a worm gear (3221) and a worm (3222) that mesh with each other. The worm gear (3221) is slidably disposed on the arc-shaped guide rail and fixedly connected to the second clamping assembly (230). The worm (3222) is rotatably disposed on the second frame (210). The first drive member (321) is used to drive the worm (3222) to rotate according to the rotation angle signal.

4. The pipe bending system according to claim 1, characterized in that, Both the first clamping assembly (220) and the second clamping assembly (230) include a wheel frame (221), a first rotating wheel (222), and a second rotating wheel (223). The wheel frame (221) is fixedly connected to the second frame (210). The first rotating wheel (222) and the second rotating wheel (223) are respectively mounted on the wheel frame (221). The axes of the first rotating wheel (222) and the second rotating wheel (223) are parallel to each other. A first annular groove (2221) is formed on the circumferential surface of the first rotating wheel (222), and a second annular groove (2231) is formed on the circumferential surface of the second rotating wheel (223). The first annular groove (2221) and the second annular groove (2231) cooperate to form a clamping cavity for accommodating and clamping the pipe fitting (1100).

5. The pipe bending system according to claim 4, characterized in that, The first clamping assembly (220) includes a plurality of the first clamping assemblies (220), which are spaced apart along the length direction of the tube (1100).

6. The pipe bending system according to claim 5, characterized in that, It also includes a second drive member for driving one of the first wheel (222) or the second wheel (223) to rotate.

7. The pipe bending system according to claim 6, characterized in that, The diameter of the first rotating wheel (222) of the second clamping assembly (230) is greater than the diameter of the first rotating wheel (222) of the first clamping assembly (220), and the diameter of the second rotating wheel (223) of the second clamping assembly (230) is greater than the diameter of the second rotating wheel (223) of the first clamping assembly (220). The second driving member is used to drive the first rotating wheel (222) or the second rotating wheel (223) of the first clamping assembly (220) to rotate.

8. The pipe bending system according to claim 1, characterized in that, The bottom of the first frame (120) is connected to two drive wheels (140), which are spaced apart in the moving direction of the first frame (120); And / or, the top of the first frame (120) is provided with a handle (160).

9. The pipe bending system according to claim 1, characterized in that, The surface measuring device (100) further includes an elastic element (170), one end of which is connected to the first frame (120) and the other end of which is connected to the measuring rod (110). The elastic element (170) is configured to pull the measuring rod (110) so that the measuring wheel (150) is in close contact with the surface.

10. A pipe bending method based on the pipe bending system according to any one of claims 1-9, characterized in that, Includes the following steps: The control surface measuring device (100) moves on the curved surface and collects the rotation angle signal of the measuring rod (110) relative to the first frame (120) in real time; The angle signal is transmitted to the control device (300). The control device (300) controls the second clamping assembly (230) of the pipe bending device (200) to rotate according to the angle signal.

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