Tube processing device, method and battery device production line

Abstract

The embodiments of the present application provide a pipe processing device, method and production line for battery devices. The pipe processing device includes a conveying mechanism and a bending mechanism. The conveying mechanism is used to convey the pipe along a first direction, and the first direction intersects with the height direction. The bending mechanism is arranged downstream of the conveying mechanism along the first direction, and the bending mechanism includes a pressing module and a bending wheel arranged on the bottom side of the pressing module. The pressing module can apply a force in the height direction to the pipe to fix the pipe to the bending wheel. The bending wheel can rotate around the rotation axis in the height direction to bend the pipe, wherein the bending mechanism includes two bending wheels, the two bending wheels rotate in opposite directions, and the two bending wheels can be moved interchangeably to the bending station. The pipe processing device, method and production line for battery devices of the embodiments of the present application have high production efficiency, good finished product quality, and can achieve multi-directional bending.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of pipe processing technology, and in particular to a pipe processing device, method, and production line for battery devices. Background Art

[0002] Bending pipes are widely used in various fields. For example, heat exchange tubes in battery devices usually have a serpentine structure. In actual production, straight tubes need to be bent continuously and multiple times at large angles to form the serpentine structure.

[0003] The pipe processing device provided in the related art has low efficiency in bending pipes, and the pipe wall thinning rate and deformation rate after bending are high, resulting in poor quality of the finished product. Summary of the Invention

[0004] In view of this, the embodiments of the present application hope to provide a pipe processing device, method and battery device production line with high processing efficiency and good finished product quality.

[0005] A first aspect of an embodiment of the present application provides a pipe processing device, which includes: a conveying mechanism for conveying pipes along a first direction, wherein the first direction intersects with a height direction; a bending mechanism, which is arranged downstream of the conveying mechanism along the first direction, and the bending mechanism includes a pressing module and a bending wheel arranged on the bottom side of the pressing module, the pressing module and the bending wheel can move relative to each other along the height direction to clamp the pipe therebetween, and the bending wheel can rotate around a rotation axis in the height direction to bend the pipe; wherein the bending mechanism includes two bending wheels, the rotation directions of the two bending wheels are opposite, and the two bending wheels can be moved interchangeably to the bending station.

[0006] In the pipe processing device of the present embodiment, after the conveying mechanism delivers the pipe section to be bent to the bending station, bending can be achieved by simply controlling the downward pressure module and the bending wheel to move toward each other in the height direction to clamp the pipe, and then controlling the bending wheel to rotate. After bending one section to be bent, the downward pressure module and the bending wheel are simply controlled to return to their original position, and the above steps are repeated to bend the next section to be bent, resulting in high continuous bending efficiency.

[0007] Furthermore, during the rotation of the bending wheel, the pipe is subjected to forces on opposite sides of the horizontal direction. If the pipe is not subjected to forces along the vertical direction or the forces applied are small, the uneven stress distribution may cause abnormal deformation of the pipe along the vertical direction, resulting in excessive thinning of portions of the pipe wall, affecting the quality of the finished product. In this embodiment, the pipe is clamped by the down-holding module and the bending wheel. This increases the forces applied to opposite sides of the pipe along the vertical direction, improves the stress distribution during bending, and reduces the probability of excessive thinning and abnormal deformation of the pipe wall after bending. This is particularly true when bending flat pipes (pipes with rectangular cross-sections). This significantly reduces the probability of abnormal bulges on both sidewalls along the vertical direction of the flat pipe after bending, thereby improving the quality of the finished product.

[0008] Furthermore, in related technologies, bending a pipe in different directions is typically achieved by rotating the pipe around its axis. This rotation is costly to implement and difficult to ensure, making it difficult to meet flatness requirements. In this embodiment, however, the bending mechanism is equipped with two bending wheels that rotate in opposite directions. This allows bending in both directions to be achieved simply by controlling the movement of the two bending wheels, helping to reduce costs and control difficulty. Furthermore, because the pipe itself does not rotate during processing, good flatness is maintained between the forward-bent and reverse-bent sections, improving the quality of the finished product.

[0009] In some embodiments, the bending wheel includes a body, and a first step and a second step provided on a top surface of the body, wherein the first step and the second step are spaced apart to form a gap therebetween for the pipe to pass through.

[0010] In this embodiment, the first step and the second step of the bending wheel form a gap for the pipe to pass through. In actual use, bending can be achieved by simply rotating the bending wheel, which helps to reduce equipment costs and operating accuracy requirements. In addition, the first step and the second step are both arranged on the top surface of the main body, which helps to further reduce the rotation radius of the bending wheel, reduce the requirements for rotation space, and facilitate large-angle bending.

[0011] In some embodiments, the first step is a columnar structure, and the axis of the first step forms the rotation axis of the bending wheel, and the bending wheel bends the tube around the circumferential surface of the first step when the bending wheel rotates.

[0012] In this embodiment, the first step is set to a columnar structure, so that the circumferential surface of the first step can guide the bending of the pipe, improve the control accuracy of the bending angle and bending position of the pipe, and thus improve the quality of the finished product.

[0013] In some embodiments, the second step has a rest plane facing the first step, the rest plane is parallel to the height direction, and along the extension direction of the rest plane, one end of the rest plane is flush with the axis of the first step, and the other end exceeds the first step.

[0014] In this embodiment, the second step is configured to have an abutment plane, which helps increase the contact area between the second step and the tube during the bending process, making the force applied to the tube more uniform. When bending flat tubes (tubes with a rectangular cross-section), the thinning rate of the tube wall after bending can be further reduced. Furthermore, the axis of the first step is the rotation axis of the bending wheel. One end of the abutment plane is aligned with the rotation axis, which helps ensure that the tube is better aligned with the abutment plane during the rotation of the bending wheel. The other end of the abutment plane extends beyond the first step, which helps ensure that the tube is better aligned with the circumferential surface of the second step during the rotation of the bending wheel, thereby improving the accuracy of the bending angle.

[0015] In some embodiments, the body includes a columnar portion and a raised portion, the raised portion protrudes outward from the circumferential surface of the columnar portion, and the top surface of the raised portion is flush with the top surface of the columnar portion, the first step is arranged on the columnar portion and coaxial with the columnar portion, and the second step is arranged on the raised portion.

[0016] In this embodiment, the body is configured to include a columnar portion and a convex portion, which helps to reduce the volume of the body and further reduce the volume of the bending wheel compared to directly configuring the body as a columnar structure.

[0017] In some embodiments, the lower pressure module includes a driving member and a lower pressure wheel connected to the driving member, the driving member is used to drive the lower pressure wheel to move along the height direction, the lower pressure wheel is rotatably connected to the driving member and the rotation axis is parallel to the height direction, so that the bending wheel can drive the lower pressure wheel to rotate when it rotates.

[0018] In this embodiment, the lower pressing wheel can rotate along with the bending wheel, thereby reducing the friction between the top surface of the tube and the lower pressing wheel during the tube bending process and improving the quality of the finished product.

[0019] In some embodiments, one of the lower pressing wheel and the bending wheel has at least one connecting column, and the other has at least one connecting hole, and the connecting column can be inserted into the connecting hole to form a non-rotating fit between the lower pressing wheel and the bending wheel.

[0020] In this embodiment, the lower pressing wheel and the bending wheel can achieve anti-rotation cooperation with the help of the connecting column and the connecting hole, so that the lower pressing wheel and the bending wheel can achieve synchronous rotation during actual use, further improving the quality of the finished product.

[0021] In some embodiments, the bending mechanism includes a support plate for supporting the bottom of the tube, and the support plate has a hollow portion on a side close to the conveying mechanism, and the bending wheel can pass through the hollow portion to contact the tube.

[0022] It can be understood that pipes that have been bent multiple times usually need to maintain a certain degree of flatness, that is, the various pipe sections after bending need to be kept roughly in the same plane. For this reason, a support plate is added to the bending mechanism of this embodiment, which can support the bottom of the bent pipe section to prevent the bent pipe section from sagging under its own gravity, thereby improving the flatness of the pipe after bending.

[0023] In some embodiments, the bending mechanism includes a power module, and the power module includes a power member and a transmission member. The transmission member can be connected to any one of the bending wheels so that the power member can drive the bending wheel to rotate.

[0024] In this embodiment, the two bending wheels share the same power component, which can simplify the overall structure of the device and reduce costs.

[0025] In some embodiments, the two bending wheels are distributed along a second direction, and the bending wheels have an initial rotation position. When the two bending wheels are in the initial rotation position, the two bending wheels are symmetrically arranged about a reference plane, the second direction intersects with the first direction, and the first direction and the second direction are both perpendicular to the height direction, and the reference plane is perpendicular to the second direction.

[0026] In this embodiment, the two bending wheels are distributed along a second direction intersecting with the first direction. In this way, the movement paths of the two bending wheels relative to the bending station can be simplified, thereby improving the movement efficiency.

[0027] In some embodiments, the bending mechanism also includes two anti-deformation molds arranged in one-to-one correspondence with the two bending wheels. The anti-deformation molds are arranged on the side of the corresponding bending wheel close to the conveying mechanism and are used to abut against the side of the pipe away from the bending direction.

[0028] In this embodiment, an anti-deformation mold is provided on the side of the bending wheel close to the conveying mechanism. The anti-deformation mold can abut against the pipe, thereby reducing the probability of deformation of the pipe section located outside the bending wheel under the stress during bending, thereby improving the quality of the finished product.

[0029] In some embodiments, the pipe processing device includes a base, the conveying mechanism is arranged on the base, the bending mechanism includes a support member, the support member and the base slide together along the second direction, and the two bending wheels and the two anti-deformation molds are both connected to the support member.

[0030] In this embodiment, the two bending wheels and the two anti-deformation molds are all connected to the support member. In this way, the position of the two bending wheels and the two anti-deformation molds relative to the bending station can be adjusted by simply controlling the support member to slide along the second direction, thereby improving operation efficiency and reducing costs.

[0031] In some embodiments, the support member includes a first part and a second part, the first part slides with the base along the second direction, the second part slides with the first part along the height direction, and the bending wheel and the anti-deformation mold are arranged in the second part.

[0032] In this embodiment, both bending wheels are connected to the second part. Thus, the positions of the two bending wheels in the height direction can be adjusted simply by controlling the second part to slide relative to the first part in the height direction, thereby reducing costs.

[0033] In some embodiments, the anti-deformation mold is slidably engaged with the second portion along the second direction.

[0034] In this embodiment, the anti-deformation mold and the second part slide together along the second direction. In this way, during actual use, the position of the anti-deformation mold can be adjusted to control the interaction force between it and the pipe within a reasonable range, thereby improving the anti-deformation effect.

[0035] In some embodiments, the conveying mechanism includes: a guide member extending along the first direction; a clamping member for clamping the pipe, and the clamping member and the guide member are slidably engaged along the first direction.

[0036] In this embodiment, the conveying mechanism includes a guide member and a clamping member. The clamping member can clamp the pipe, thereby improving the stability of pipe conveying and improving the quality of the finished product.

[0037] In some embodiments, the conveying mechanism further includes: a plurality of limiting members distributed along the first direction, the limiting members having limiting holes for the pipe to pass through, and the limiting holes passing through the limiting members along the first direction.

[0038] In this embodiment, a plurality of limit members distributed along the first direction are added to the conveying structure, which can further improve the stability and smoothness of pipe conveying.

[0039] A second aspect of an embodiment of the present application provides a pipe processing method, the method comprising: a loading step: controlling a conveying mechanism to convey the pipe section to be bent to a bending station along a first direction, wherein the first direction is perpendicular to the height direction; a fixing step: controlling a pressing module and a bending wheel to move toward each other along the height direction to clamp the pipe section to be bent therebetween; a bending step: controlling the bending wheel to rotate around a rotation axis in the height direction to bend the pipe section to be bent; and a resetting step: after the bending action is completed, controlling the pressing module and the bending wheel to reset, wherein the number of the bending wheels is two, and the two bending wheels rotate in opposite directions. Before the fixing step, the method further comprises: a selecting step: selecting one of the bending wheels according to the bending requirements of the pipe, and controlling the selected bending wheel to move to the bending station.

[0040] The pipe processing method of the embodiment of the present application can be executed cyclically to achieve continuous bending, which is highly efficient. Furthermore, during the bending step, the pipe is clamped by the pressing module and the bending wheel. This increases the forces acting on the pipe on opposite sides along the height direction, improves the stress distribution of the pipe during bending, and reduces the probability of excessive wall thinning and abnormal deformation after bending. In particular, when bending flat pipes (pipes with rectangular cross-sections), the probability of abnormal bulges on both sidewalls along the height direction after bending can be significantly reduced, thereby improving the quality of the finished product.

[0041] Furthermore, in this embodiment, the bending of the pipe in both the forward and reverse directions is achieved by controlling the movement of the two bending wheels, which helps to reduce costs and control difficulty. Moreover, since the pipe itself does not rotate during the processing, the forward-bent pipe section and the reverse-bent pipe section can maintain good flatness, thereby improving the quality of the finished product.

[0042] In some embodiments, before the bending step, the method further includes: a determination step: determining the travel parameters of the pipe section in contact with the conveying mechanism along the first direction during bending based on the bending requirements of the pipe and the parameters of the bending wheel; the bending step further includes: while controlling the rotation of the bending wheel, controlling the conveying mechanism to convey the pipe according to the travel parameters.

[0043] In this embodiment, the conveying mechanism is controlled to convey the pipe while the bending wheel rotates. In this way, the tensile force between the to-be-bent section of the pipe and other sections of the pipe during the bending process can be reduced, thereby helping to further improve the quality of the finished product.

[0044] A third aspect of the embodiments of the present application provides a production line for a battery device, wherein the production line for the battery device comprises the tube processing device described in the first aspect of the embodiments of the present application, and the tube processing device is used to process heat exchange tubes of the battery device.

[0045] The production line of the battery device according to the embodiment of the present application has all the advantages of the tube processing device described in any of the above embodiments, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A side view of a pipe processing device according to an embodiment of the present application;

[0047] Figure 2 Another side view of the pipe processing device according to an embodiment of the present application;

[0048] Figure 3 This is an axial schematic diagram of the conveying mechanism and the bending mechanism of an embodiment of the present application, wherein the base and other structures of the pipe processing device are hidden;

[0049] Figure 4 This is a schematic structural diagram of a bending wheel according to an embodiment of the present application;

[0050] Figure 5 This is a schematic diagram of the positional relationship among the bending wheel, the pressing module, and the anti-deformation mold according to an embodiment of the present application.

[0051] Description of Reference Numerals

[0052] 1. Conveying mechanism; 11. Guide member; 12. Clamping member; 13. Limiting member; 131. Limiting hole; 2. Bending mechanism; 21. Pressing module; 211. Driving member; 212. Pressing wheel; 2121. Connecting column; 22. Bending wheel; 221. Main body; 2211. Columnar part; 2212. Raised part; 222. First step; 223. Second step; 2231. Abutting plane; 224. Connecting hole; 23. Support plate; 231. Hollow part; 24. Power module; 241. Power member; 242. Transmission member; 25. Anti-deformation mold; 26. Support member; 261. First part; 262. Second part; 3. Base; 4. Bracket structure. DETAILED DESCRIPTION

[0053] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0054] The various specific technical features described in the specific embodiments may be combined in any suitable manner, unless they are inconsistent. For example, different embodiments and technical solutions may be formed by combining different specific technical features. To avoid unnecessary repetition, the various possible combinations of the specific technical features in the present invention will not be described separately.

[0055] In the following description, the terms "first, second, ..." are used solely to distinguish different objects and do not imply any similarities or connections between the objects. It should be understood that the directions "above," "below," "outside," and "inside" refer to directions during normal use. The directions "left" and "right" refer to the left-right directions shown in the corresponding schematic diagrams, which may or may not be the left-right directions during normal use.

[0056] It should be noted that the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus comprising that element. "A plurality" means greater than or equal to two.

[0057] In the description of this application, the orientation or position relationship of "first direction", "second direction" and "height direction" is based on the orientation or position relationship shown in the accompanying drawings, wherein the "first direction" is the direction indicated by the arrow L1 in the accompanying drawings, the "second direction" is the direction indicated by the arrow L2 in the accompanying drawings, and the "height direction" is the direction indicated by the arrow L3 in the accompanying drawings. It should be understood that these orientation terms 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0058] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be understood as limitations on the embodiments of the present application.

[0059] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0060] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, the technical term "contact" should be understood in a broad sense, and can be direct contact, contact through an intermediate medium layer, contact with essentially no interaction force between the two contacting parties, or contact with interaction force between the two contacting parties.

[0061] An embodiment of the present application provides a tube processing device that can be used to process any suitable tube. The relevant parts below will mainly describe the tube processing device by taking the application of the tube processing device to process heat exchange tubes of a battery device as an example.

[0062] The battery device mentioned in this application includes a housing and at least one battery cell disposed within the housing. A heat exchange tube is used to accommodate a heat exchange structure to achieve heat exchange with the battery cell. The heat exchange tube includes multiple bends to increase the heat exchange area between the heat exchange tube and the battery cell.

[0063] During the production of heat exchange tubes, the tubes must be bent multiple times, often at large angles, such as exceeding 90° or even approaching 180°. The tube processing devices provided by related technologies require a complex series of steps to adjust the tube's position after each bend before the next bend can be performed. Furthermore, large-angle bends can easily lead to excessive thinning or abnormal deformation of the tube wall, resulting in reduced product quality.

[0064] In response to the above-mentioned problems, a battery processing device according to an embodiment of the present application is proposed. The battery processing device according to an embodiment of the present application includes a conveying mechanism and a bending mechanism. The conveying mechanism is used to convey the pipe along a first direction, which intersects with the height direction. The bending mechanism is arranged downstream of the conveying mechanism along the first direction. The bending mechanism includes a pressing module and a bending wheel arranged on the bottom side of the pressing module. The pressing module can apply a force along the height direction to the pipe to fix the pipe to the bending wheel. The bending wheel can rotate around a rotation axis in the height direction to bend the pipe.

[0065] In the battery processing device of the present embodiment, after the conveying mechanism delivers the tube section to be bent to the bending station, bending is achieved simply by controlling the downward pressure module and the bending wheel to move toward each other in the height direction to clamp the tube, and then controlling the bending wheel to rotate. After bending one section, the downward pressure module and the bending wheel are simply reset, and the above steps are repeated to bend the next section, resulting in high continuous bending efficiency.

[0066] Furthermore, during the rotation of the bending wheel, the pipe is subjected to forces on opposite sides of the horizontal direction. If the pipe is not subjected to forces in the vertical direction or the forces applied are small, the uneven stress distribution may cause abnormal deformation of the pipe in the vertical direction, resulting in excessive thinning of parts of the pipe wall, affecting the quality of the finished product. In this embodiment, the pipe is clamped by the down-holding module and the bending wheel. This can increase the forces applied to the opposite sides of the pipe in the vertical direction, improve the stress distribution of the pipe during bending, reduce the probability of excessive thinning and abnormal deformation of the pipe wall after bending, and improve the quality of the finished product.

[0067] Reference Figure 1-Figure 4 The pipe processing device in this embodiment includes a conveying mechanism 1 and a bending mechanism 2. The conveying mechanism 1 is used to convey the pipe along a first direction, which intersects the height direction. The bending mechanism 2 is disposed downstream of the conveying mechanism 1 along the first direction. The bending mechanism 2 includes a pressing module 21 and a bending wheel 22 disposed on the bottom side of the pressing module 21. The pressing module 21 is capable of applying a force along the height direction to the pipe to fix the pipe to the bending wheel 22. The bending wheel 22 is capable of rotating about a rotation axis in the height direction to bend the pipe.

[0068] The specific implementation of the conveying mechanism 1 is not limited. As an example, the conveying mechanism 1 may include a guide member 11 extending in a first direction, a clamping member 12 that slides with the guide member 11 in the first direction, and a power structure (e.g., a motor, a pneumatic cylinder, an oil cylinder, etc.) for driving the clamping member 12 to slide along the guide member 11. The clamping member 12 is capable of clamping the tubular material, and when the clamping member 12 slides relative to the guide member 11 in the first direction, it drives the tubular material to move in the first direction.

[0069] As an example, the first direction is perpendicular to the height direction.

[0070] The pressing module 21 and the bending wheel 22 are distributed along the height direction. As an example, the pipe processing device may include a base 3 and a support structure (such as a gantry known to those skilled in the art). The base 3 is arranged on the bottom side of the top beam of the support structure 4. The pressing module 21 can be connected to the top beam of the gantry, and the bending wheel 22 can be connected to the base 3.

[0071] Specifically, the ability of the pressing module 21 and the bending wheel 22 to move relative to each other in the height direction means that either the pressing module 21 or the bending wheel 22 can move relative to the other in the height direction. The specific implementation method for the pressing module 21 and the bending wheel 22 to move relative to each other in the height direction is not limited. The relevant sections below will specifically introduce several possible implementation methods, which will not be repeated here.

[0072] The specific structure of the pressing module 21 is not limited. As an example, the side surface of the pressing module 21 facing the bending wheel 22 may have a supporting structure for abutting against the pipe. The supporting structure may be a plane structure or a groove structure. It is only necessary to ensure that the pipe can be subjected to the force applied by the pressing module 21 in the height direction.

[0073] The specific structure of the bending wheel 22 can be referenced to relevant technologies in the art. For example, the bending wheel 22 can be formed with a gap for the pipe to pass through, or the bending wheel 22 can cooperate with other structures to form a gap for the pipe to pass through. The top side of this gap can be open, allowing the top-side pressing module 21 to abut against the pipe to clamp it.

[0074] The bending mechanism 2 may include a power structure for driving the bending wheel 22 to rotate around the rotation axis in the height direction. The power structure may be a motor. The specific configuration of the power structure can be referred to the description of the relevant part below and will not be repeated here.

[0075] In actual use, the conveying mechanism 1 can be controlled to convey the pipe section to be bent to the bending station. The pressing module 21 and the bending wheel 22 can then be controlled to move toward each other in the height direction to clamp the pipe section to be bent. At this time, the pipe section to be bent will be located within the above-mentioned gap. The bending wheel 22 can then be controlled to rotate about its height-direction rotation axis. At this time, the extension direction of the above-mentioned gap will change, forcing the pipe section to be bent along the rotation direction of the bending wheel 22.

[0076] In the pipe processing device of the embodiment of the present application, after the conveying mechanism 1 delivers the pipe section to be bent to the bending station, bending can be achieved by simply controlling the downward pressure module 21 and the bending wheel 22 to move toward each other in the height direction to clamp the pipe, and then controlling the bending wheel 22 to rotate. After bending one section to be bent, the downward pressure module 21 and the bending wheel 22 are simply reset and the above steps are repeated to bend the next section to be bent, resulting in high continuous bending efficiency.

[0077] Furthermore, during the rotation of the bending wheel 22, the pipe will be subjected to forces from the bending wheel 22 on opposite sides of the horizontal direction. If the pipe is not subjected to forces in the vertical direction or the forces applied are small, the pipe may deform abnormally in the vertical direction due to uneven stress distribution, resulting in excessive thinning of portions of the pipe wall, affecting the quality of the finished product. In this embodiment, the pipe is clamped by the pressing module 21 and the bending wheel 22. This can increase the forces applied to the opposite sides of the pipe in the vertical direction, improve the stress distribution of the pipe during bending, and reduce the probability of excessive thinning and abnormal deformation of the pipe wall after bending. In particular, when bending flat pipes (pipes with rectangular cross-sections), the probability of abnormal bulges on both side walls of the flat pipe after bending can be significantly reduced, thereby improving the quality of the finished product.

[0078] In some embodiments, reference Figure 4 The bending wheel 22 may specifically include a body 221, and a first step 222 and a second step 223 provided on the top surface of the body 221. The first step 222 and the second step 223 are spaced apart to form a gap therebetween for the pipe to pass through.

[0079] The specific structures of the body 221, first step 222, and second step 223 are not limited. As an example, the first step 222 and second step 223 can be fixed to the top surface of the body 221 by bonding, welding, or the like. Alternatively, the body 221, first step 222, and second step 223 can be formed into an integrated structure, thereby simplifying the structure of the bending wheel 22. As another example, at least one of the first step 222 and second step 223 can be slidably engaged with the body 221, allowing the gap between the first step 222 and the second step 223 to be adjustable, thereby accommodating pipes of different sizes.

[0080] The first step 222 and the second step 223 are spaced apart to form a gap therebetween for the pipe to pass through. When the pressing module 21 and the bending wheel 22 clamp the pipe, the two opposite horizontal surfaces of the pipe respectively abut against the bottom surface of the pressing module 21 and the top surface of the body 221, and the two opposite horizontal surfaces respectively abut against the first step 222 and the second step 223.

[0081] In some related technologies, a gap is formed between the bending wheel and an oscillating block spaced apart on one side of the bending wheel for the pipe to pass through. In actual use, two power systems are required to synchronously drive the bending wheel and the oscillating block to achieve bending, which is costly and requires high control precision. Furthermore, the oscillating block is typically equipped with a drive mechanism to drive it toward or away from the bending wheel. This results in a larger rotation radius when the bending wheel and oscillating block rotate synchronously, requiring more space for rotation, and may prevent large-angle bending (e.g., bending greater than 90°) due to these limitations.

[0082] In this embodiment, the first step 222 and the second step 223 of the bending wheel 22 form a gap for the pipe to pass through. In actual use, bending can be achieved by simply rotating the bending wheel 22, which helps to reduce equipment costs and operating accuracy requirements. In addition, the first step 222 and the second step 223 are both arranged on the top surface of the main body 221, which helps to further reduce the rotation radius of the bending wheel 22, reduce the requirements for rotation space, and facilitate large-angle bending.

[0083] It should be noted that the structure of the bending wheel 22 is not limited thereto, and those skilled in the art may select any suitable bending wheel provided in the relevant art in the art as the bending wheel 22 of the present application according to actual use requirements.

[0084] In some embodiments, reference Figure 4 and Figure 5 The first step 222 is a columnar structure, and the axis of the first step 222 forms the rotation axis of the bending wheel 22 . When the bending wheel 22 rotates, the pipe is bent around the circumferential surface of the first step 222 .

[0085] by Figure 5 For example, in actual use, the bending wheel 22 can be controlled to move around Figure 5 The pipe is rotated in the direction indicated by the middle arc arrow, so that the pipe is bent around the circumferential surface of the first step 222.

[0086] In this embodiment, the first step 222 is configured as a columnar structure, so that the circumferential surface of the first step 222 can guide the bending of the pipe, improve the control accuracy of the bending angle and bending position of the pipe, and thus improve the quality of the finished product.

[0087] In some embodiments, still referring to Figure 4 and Figure 5 The second step 223 has a contact plane 2231 facing the first step 222, and the contact plane 2231 is parallel to the height direction. Along the extension direction of the contact plane 2231, one end of the contact plane 2231 is flush with the axis of the first step 222, and the other end exceeds the first step 222.

[0088] As an example, the second step 223 may be a rectangular parallelepiped structure. Of course, the second step 223 may also be any other structure having the above-mentioned abutting plane 2231 .

[0089] In this embodiment, the second step 223 is configured to have an abutment plane 2231, which helps to increase the contact area between the second step 223 and the tube during the bending process, making the force applied to the tube more uniform. When bending a flat tube (a tube with a rectangular cross-section), the thinning rate of the tube wall after bending can be further reduced. Furthermore, the axis of the first step 222 is the rotation axis of the bending wheel 22. One end of the abutment plane 2231 extending in the direction of rotation is flush with the rotation axis, which helps to better fit the tube to the abutment plane 2231 during the rotation of the bending wheel 22. The other end of the abutment plane 2231 extends beyond the first step 222, which helps to better fit the tube to the circumferential surface of the second step 223 during the rotation of the bending wheel 22, thereby helping to improve the accuracy of the bending angle.

[0090] It should be noted that the structural form of the first step 222 and the second step 223 is not limited to this. For example, the first step 222 and the second step 223 can both be columnar structures. In the case where the first step 222 and the second step 223 are both columnar structures, the rotation axis of the bending wheel 22 can also be the axis of the second step 223, or a vertical line passing through the midpoint of the line connecting the axes of the first step 222 and the second step 223. Alternatively, the first step 222 and the second step 223 can each have an abutment plane 2231 facing the other. In this embodiment, when the bending wheel 22 rotates, the pipe section between the bending wheel 22 and the conveying mechanism 1 will be bent.

[0091] In some embodiments, reference Figure 4 The main body 221 includes a columnar portion 2211 and a raised portion 2212. The raised portion 2212 protrudes outward from the circumferential surface of the columnar portion 2211, and the top surface of the raised portion 2212 is flush with the top surface of the columnar portion 2211. The first step 222 is arranged on the columnar portion 2211 and is coaxial with the columnar portion 2211. The second step 223 is arranged on the raised portion 2212.

[0092] In this embodiment, the diameter of the columnar portion 2211 may be greater than the diameter of the first step 222 , or may be substantially the same as the diameter of the first step 222 .

[0093] The specific shape of the raised portion 2212 is not limited and can be determined by those skilled in the art based on the specific shape of the second step 223. The bottom surface of the raised portion 2212 can be flush with the bottom surface of the columnar portion 2211 or higher or lower than the bottom surface of the columnar portion 2211.

[0094] The columnar portion 2211 and the raised portion 2212 may be formed as an integral structure, or may be connected together by bonding, welding, or the like.

[0095] In this embodiment, the body 221 is configured to include a columnar portion 2211 and a raised portion 2212 . Compared with directly configuring the body 221 as a columnar structure, this helps to reduce the volume of the body 221 and further reduce the volume of the bending wheel 22 .

[0096] In some embodiments, reference Figure 1 and 2 The lower pressing module 21 includes a driving member 211 and a lower pressing wheel 212 connected to the driving member 211. The driving member 211 is used to drive the lower pressing wheel 212 to move along the height direction. The lower pressing wheel 212 is rotationally connected to the driving member 211 and the rotation axis is parallel to the height direction, so that the bending wheel 22 can drive the lower pressing wheel 212 to rotate when it rotates.

[0097] The specific structure of the driving member 211 is not limited. As an example, the driving shaft may include a motor and a telescopic shaft. The telescopic shaft extends in the height direction. The lower pressure wheel 212 may be connected to the bottom end of the telescopic shaft. The motor can drive the telescopic shaft to extend and retract in the height direction, thereby driving the lower pressure wheel 212 to move in the height direction.

[0098] In some embodiments, as mentioned above, the pipe processing apparatus includes a support structure 4, and the driver 211 can be connected to a top beam of the support structure. In some embodiments, the driver 211 can slide with the top beam of the support structure in a horizontal direction (e.g., in a first direction and / or a second direction), thereby enabling the horizontal position of the lower pressing wheel 212 to be adjusted during actual use so that it is directly above the pipe and the bending wheel 22.

[0099] The specific structure of the lower pressing wheel 212 is not limited. As an example, the lower pressing wheel 212 can be a columnar structure, and the bottom surface of the lower pressing wheel 212 corresponding to the gap between the first step 222 and the second step 223 can form a protrusion for the pipe to abut against. Alternatively, the bottom surface of the lower pressing wheel 212 corresponding to the gap between the first step 222 and the second step 223 can be a plane.

[0100] As another example, the lower pressing wheel 212 can be a structure similar to the bending wheel 22 described in any of the embodiments above. For example, the lower pressing wheel 212 can include a main body 221 and a third step and a fourth step arranged on the bottom surface of the main body 221. The structure of the third step is similar to that of the first step 222, and the structure of the fourth step is similar to that of the second step 223. During actual use, the lower half of the pipe is passed through the gap between the first step 222 and the second step 223, and the upper half is passed through the gap between the third step and the fourth step.

[0101] In this embodiment, the lower pressing wheel 212 can rotate along with the bending wheel 22, thereby reducing the friction between the top surface of the tube and the lower pressing wheel 212 during the tube bending process and improving the quality of the finished product.

[0102] In some embodiments, one of the lower pressing wheel 212 and the bending wheel 22 has at least one connecting column 2121, and the other has at least one connecting hole 224. The connecting column 2121 can be inserted into the connecting hole 224 to form a anti-rotation fit between the lower pressing wheel 212 and the bending wheel 22.

[0103] The specific structure and number of the connecting column 2121 and the connecting hole 224 are not limited. Taking the example of the lower pressure wheel 212 having a connecting column 2121 and the bending wheel 22 having a connecting hole 224, the connecting hole 224 can be formed on the second step 223 and coaxial with the second step 223. The connecting hole 224 can be a polygonal hole (such as a hole with a triangular, quadrilateral, pentagonal, or hexagonal cross-section), and the connecting column 2121 is a polygonal column corresponding to the polygonal hole, so that the connecting column 2121 can achieve a non-rotating fit after being inserted into the connecting hole 224. Alternatively, a groove can be formed on the inner wall of the connecting hole 224, and a protrusion can be formed on the outer surface of the connecting column 2121. The protrusion is inserted into the groove, and the connecting column 2121 can achieve a non-rotating fit after being inserted into the connecting hole 224.

[0104] In this embodiment, the lower pressing wheel 212 and the bending wheel 22 can achieve anti-rotation cooperation with the help of the connecting column 2121 and the connecting hole 224, so that the lower pressing wheel 212 and the bending wheel 22 will be able to rotate synchronously during actual use, further improving the quality of the finished product.

[0105] Of course, in some other embodiments, the lower pressing wheel 212 and the bending wheel 22 may not form a rotation-stopping fit, and the lower pressing wheel 212 may be driven passively by the friction force during tube bending.

[0106] In some embodiments, reference Figure 1 and Figure 3 The bending mechanism 2 includes a support plate 23 for supporting the bottom of the pipe. The support plate 23 has a hollow portion 231 on one side close to the conveying mechanism 1. The bending wheel 22 can pass through the hollow portion 231 and thus come into contact with the pipe.

[0107] The specific implementation of the support plate 23 is not limited. Taking the pipe processing device including the base 3 as an example, one end of the support plate 23 can be connected to the base 3. The specific material of the support plate 23 is not limited, such as nylon plate, metal plate, wood plate, etc.

[0108] It can be understood that pipes that have been bent multiple times usually need to maintain a certain degree of flatness, that is, the various pipe sections after bending need to be kept roughly in the same plane. For this reason, a support plate 23 is added to the bending mechanism 2 of this embodiment, which can support the bottom of the bent pipe section to prevent the bent pipe section from sagging under its own gravity, thereby improving the flatness of the pipe after bending.

[0109] In some embodiments, reference Figure 2 and Figure 3 The bending mechanism 2 includes two bending wheels 22 , the two bending wheels 22 rotate in opposite directions, and the two bending wheels 22 can be moved interchangeably to the bending station.

[0110] The bending station here specifically refers to a position that can clamp the pipe together with the pressing module 21.

[0111] The rotation direction here should be understood as the rotation direction of the bending wheel 22 when performing the bending action, and the rotation direction mainly depends on the relative position relationship between the bending wheel 22 and the pipe.

[0112] The two bending wheels 22 here can be moved interchangeably to the bending station, which should be understood as both bending wheels 22 can be moved to the bending station, but when one of the bending wheels 22 moves to the bending station, the other bending wheel 22 needs to leave the bending station. There will be no situation where the two bending wheels 22 are at the bending station at the same time.

[0113] In this embodiment, the bending wheel 22 can be driven by a suitable driving mechanism to move it to the bending station or leave the bending station. The specific implementation of the driving mechanism can be referred to the description of the relevant part below and will not be repeated here.

[0114] In actual use, the bending wheel 22 that is to be moved to the bending station for the bending operation can be specifically determined according to the required bending direction. For example, the rotation direction of one bending wheel 22 is defined as forward, and the rotation direction of the other bending wheel 22 is defined as reverse. When forward bending is required, the bending wheel 22 with the forward rotation direction can be controlled to move to the bending station. When reverse bending is required, the bending wheel 22 with the forward rotation direction can be controlled to leave the bending station, and the bending wheel 22 with the reverse rotation direction can be controlled to move to the bending station.

[0115] In related technologies, bending a pipe in different directions is typically achieved by rotating the pipe around its axial direction. This action is costly to implement and difficult to ensure accurate, making it difficult to meet flatness requirements. In this embodiment, the bending mechanism 2 is equipped with two bending wheels 22 that rotate in opposite directions. This allows bending in both forward and reverse directions to be achieved simply by controlling the movement of the two bending wheels 22, helping to reduce costs and control difficulty. Furthermore, because the pipe itself does not rotate during processing, good flatness is maintained between the forward-bent and reverse-bent sections, improving the quality of the finished product.

[0116] In some embodiments, reference Figure 2 The bending mechanism 2 includes a power module 24 , which includes a power member 241 and a transmission member 242 . The transmission member 242 can be connected to any one of the bending wheels 22 so that the power member 241 can drive the bending wheel 22 to rotate.

[0117] The specific structure of the power member 241 is not limited. As an example, the power member 241 can be a servo motor. In actual use, the forward and reverse rotation of the power member 241 can be controlled to meet the rotation direction requirements of the corresponding bending wheel 22.

[0118] The specific structure of the transmission member 242 is not limited. As an example, the transmission member 242 can be a retractable structure and is disposed on the bottom side of the bending station. The top end of the transmission member 242 can be in transmission connection with the bending wheel 22. More specifically, the transmission member 242 can be a flat clamping cylinder. After the corresponding bending wheel 22 moves to the bending station, the transmission member 242 can be extended toward the top side to be in transmission connection with the bending wheel 22. When it is necessary to switch the bending wheel 22, the transmission member 242 can first be retracted to disconnect the transmission member 242, allowing the bending wheel 22 to leave the bending station. After another bending wheel 22 moves to the bending station, the transmission member 242 can be retracted to reconnect with the bending wheel 22.

[0119] The transmission member 242 may be directly connected to the bending wheel 22 or indirectly connected to the bending wheel 22 via other intermediate structures, and there is no limitation to this.

[0120] In this embodiment, the two bending wheels 22 share the same power member 241 , which can simplify the overall structure of the device and reduce costs.

[0121] Of course, in some other embodiments, independent driving mechanisms may be provided for the two bending wheels 22 to drive them to rotate.

[0122] In some embodiments, reference Figure 3, the two bending wheels 22 are distributed along the second direction, and the bending wheels 22 have an initial rotation position. When the two bending wheels 22 are in the initial rotation position, the two bending wheels 22 are symmetrically arranged about the reference plane, the second direction intersects with the first direction, and the first direction and the second direction are both perpendicular to the height direction, and the reference plane is perpendicular to the second direction.

[0123] As an example, the first direction, the second direction, and the third direction are perpendicular to each other.

[0124] The initial rotation position here should be understood as the position when the bending wheel 22 has not yet started to rotate, or in other words, the position that allows the unbent pipe to pass through the gap of the bending wheel 22 in the first direction. As an example, Figure 5 The bending wheel 22 shown in FIG is in the initial rotation position.

[0125] Here, the two bending wheels 22 are arranged symmetrically about the reference plane, which means that the structures of the two bending wheels 22 are symmetrical about the reference plane. For example, the bending wheel 22 includes a body 221, a first step 222, and a second step 223. Figure 3 The bodies 221 , the first steps 222 and the second steps 223 of the two bending wheels 22 are symmetrical with respect to the reference plane, so that the two bending wheels 22 rotate in opposite directions.

[0126] In this embodiment, the two bending wheels 22 are distributed along a second direction intersecting with the first direction. In this way, the movement paths of the two bending wheels 22 relative to the bending station can be simplified, thereby improving the movement efficiency.

[0127] In some other embodiments, the two bending wheels 22 may also be distributed along any other suitable direction, including the first direction.

[0128] In some embodiments, reference Figure 3 and Figure 5 The bending mechanism 2 also includes two anti-deformation molds 25 arranged in one-to-one correspondence with the two bending wheels 22. The anti-deformation molds 25 are arranged on the side of the corresponding bending wheel 22 close to the conveying mechanism 1 and are used to abut against the side of the pipe away from the bending direction.

[0129] The side of the pipe that is away from the bending direction should be understood as the side surface of the pipe that is connected to the outer arc surface after bending. The specific structure of the anti-deformation mold 25 can refer to the relevant technology in this field. As an example, the surface of the anti-deformation mold 25 that is used to abut against the pipe is a plane. Take the bending wheel 22 including the body 221, the first step 222 and the second step 223 as an example, Figure 5 When the bending wheel 22 is in the initial rotation position, the anti-deformation die 25 and the second step 223 are located on the same side of the pipe.

[0130] In this embodiment, an anti-deformation mold 25 is provided on the side of the bending wheel 22 close to the conveying mechanism 1. The anti-deformation mold 25 can abut against the pipe, thereby reducing the probability of deformation of the pipe section located outside the bending wheel 22 under the stress during bending, thereby improving the quality of the finished product.

[0131] In some embodiments, the anti-deformation mold 25 extends along the first direction. Along the first direction, the end of the anti-deformation mold 25 is substantially flush with the axis of the first step 222 , thereby improving its anti-deformation effect.

[0132] In some embodiments, the pipe processing device includes a base 3, the conveying mechanism 1 is arranged on the base 3, the bending mechanism 2 includes a support member 26, the support member 26 slides with the base 3 along the second direction, and the two bending wheels 22 and the two anti-deformation molds 25 are both connected to the support member 26.

[0133] The specific structure of the base 3 and the support member 26 and the specific implementation method of their sliding engagement are not limited. As an example, the pipe processing device may include a conveyor belt structure connected to the base 3 and a motor for driving the structure to rotate, the conveyor belt structure extending along the second direction, and the support member 26 being disposed on the conveyor belt structure, thereby achieving sliding engagement between the support member 26 and the base 3 along the second direction.

[0134] In this embodiment, the two bending wheels 22 and the two anti-deformation molds 25 are all connected to the support member 26. In this way, the position adjustment of the two bending wheels 22 and the two anti-deformation molds 25 relative to the bending station can be achieved by simply controlling the support member 26 to slide along the second direction, thereby improving operation efficiency and reducing costs.

[0135] In some other embodiments, the two bending wheels 22 and the two anti-deformation mechanisms may also independently slide with the base 3 .

[0136] In some embodiments, reference Figure 2 and Figure 3 The support member 26 includes a first part 261 and a second part 262. The first part 261 slides with the base 3 along the second direction, and the second part 262 slides with the first part 261 along the height direction. The bending wheel 22 and the anti-deformation mold 25 are arranged in the second part 262.

[0137] The specific structures of the first part 261 and the second part 262 and the implementation method of the sliding fit are not limited.

[0138] In this embodiment, both bending wheels 22 are connected to the second part 262. Thus, the height position of the two bending wheels 22 can be adjusted by simply controlling the second part 262 to slide relative to the first part 261 in the height direction, thereby reducing costs.

[0139] Of course, in some other embodiments, the two bending wheels 22 may also respectively slide with the first portion 261 along the height direction.

[0140] In some embodiments, the anti-deformation mold 25 and the second portion 262 are slidably engaged along the second direction.

[0141] The specific implementation method of the anti-deformation mold 25 slidingly cooperating with the second part 262 along the second direction is not limited. The two anti-deformation molds 25 can slide with the second part 262 respectively, or the two anti-deformation molds 25 can be connected to a structure that slides with the second part 262.

[0142] In this embodiment, the anti-deformation mold 25 and the second part 262 slide together along the second direction. In this way, during actual use, the position of the anti-deformation mold 25 can be adjusted to control the interaction force between it and the pipe within a reasonable range, thereby improving the anti-deformation effect.

[0143] In some embodiments, reference Figure 1 and Figure 3 The conveying mechanism 1 includes a guide member 11 and a clamping member 12. The guide member 11 extends along a first direction, and the clamping member 12 is used to clamp the pipe. The clamping member 12 and the guide member 11 are slidably matched along the first direction.

[0144] The specific structure of the guide member 11 and the clamping member 12 is not limited. As an example, the guide member 11 may include a rack, and the clamping member 12 may include a gear. The gear and the rack are connected to each other, thereby improving the stability and movement accuracy of the clamping member 12 when moving along the guide member 11.

[0145] In some embodiments, the guide member 11 may be fixed to the top surface of the base 3 , and the support member 26 may be fixed to a side surface of the base 3 along the first direction.

[0146] In this embodiment, the conveying mechanism 1 includes a guide member 11 and a clamping member 12. The clamping member 12 can clamp the pipe, thereby improving the stability of pipe conveying and improving the quality of the finished product.

[0147] In some embodiments, the conveying mechanism 1 further includes a plurality of limiting members 13 distributed along the first direction. The limiting members 13 have limiting holes 131 for the pipe to pass through. The limiting holes 131 penetrate the limiting members 13 along the first direction.

[0148] The specific structure of the limiter 13 is not limited. The limiter 13 can be fixed to the guide member 11 or to other structures, such as the base 3. In some embodiments, each limiter 13 can be arranged on the side of the clamping member 12 away from the bending structure to increase the sliding range of the clamping member 12.

[0149] In this embodiment, a plurality of limit members 13 distributed along the first direction are additionally provided on the conveying structure, thereby further improving the stability and smoothness of pipe conveying.

[0150] The pipe processing device involved in one or more of the above embodiments will be described in more detail and specifically with reference to a specific embodiment below.

[0151] Reference Figure 1-Figure 5 The pipe processing device of this embodiment includes a base 3, a conveying mechanism 1, and a bending mechanism 2 arranged downstream of the conveying mechanism 1 along a first direction. The base 3 is in a cubic shape, and the conveying mechanism 1 is arranged on the top surface of the base 3.

[0152] The conveying mechanism 1 specifically comprises a guide member 11, a clamping member 12, and multiple stoppers 13. The guide member 11 is disposed on the top surface of the base 3 and extends in a first direction. The clamping member 12 is used to clamp the tubing, and the clamping member 12 and the guide member 11 slide together in the first direction. Multiple stoppers 13 are disposed on the side of the clamping member 12 away from the bending mechanism 2 and are distributed along the first direction. The stoppers 13 have stopper holes 131 for the tubing to pass through, and the stopper holes 131 extend through the stopper 13 in the first direction.

[0153] The bending mechanism 2 includes a pressing module 21 and two bending wheels 22. The two bending wheels 22 rotate in opposite directions, and the two bending wheels 22 can be moved interchangeably to the bending station. The pressing module 21 and the bending wheels 22 located at the bending station can move relative to each other in the height direction to clamp the pipe therebetween, and the bending wheels 22 located at the bending station can rotate around the rotation axis in the height direction to bend the pipe.

[0154] The lower pressing module 21 specifically includes a driving member 211 and a lower pressing wheel 212 connected to the driving member 211. The driving member 211 is used to drive the lower pressing wheel 212 to move along the height direction. The lower pressing wheel 212 is rotationally connected to the driving member 211 and the rotation axis is parallel to the height direction. One of the lower pressing wheel 212 and the bending wheel 22 has at least one connecting column 2121, and the other has at least one connecting hole 224. The connecting column 2121 can be inserted into the connecting hole 224 to form a anti-rotation fit between the lower pressing wheel 212 and the bending wheel 22.

[0155] The pipe processing device includes a support structure 4, and the driving member 211 is connected to the top beam of the support structure and slides with the top beam along the second direction.

[0156] The bending wheel 22 includes a body 221 , and a first step 222 and a second step 223 provided on the top surface of the body 221 . The first step 222 and the second step 223 are spaced apart to form a gap therebetween for the pipe to pass through.

[0157] The first step 222 is a columnar structure, and the axis of the first step 222 forms the rotation axis of the bending wheel 22 . When the bending wheel 22 rotates, the pipe is bent around the circumferential surface of the first step 222 .

[0158] The second step 223 has a contact plane 2231 facing the first step 222 , and the contact plane 2231 is parallel to the height direction. Along the extension direction of the contact plane 2231 , one end of the contact plane 2231 is flush with the axis of the first step 222 , and the other end exceeds the first step 222 .

[0159] The main body 221 includes a columnar portion 2211 and a raised portion 2212. The raised portion 2212 protrudes outward from the circumferential surface of the columnar portion 2211, and the top surface of the raised portion 2212 is flush with the top surface of the columnar portion 2211. The first step 222 is arranged on the columnar portion 2211 and is coaxial with the columnar portion 2211. The second step 223 is arranged on the raised portion 2212.

[0160] The bending mechanism 2 further includes a power module 24 , which includes a power member 241 and a transmission member 242 . The transmission member 242 can be connected to any one of the bending wheels 22 so that the power member 241 can drive the bending wheel 22 to rotate.

[0161] The two bending wheels 22 are distributed along the second direction, and the bending wheels 22 have an initial rotation position. When the two bending wheels 22 are in the initial rotation position, the two bending wheels 22 are symmetrically arranged about the reference plane, the first direction, the second direction and the height direction are perpendicular to each other, and the reference plane is perpendicular to the second direction.

[0162] The bending mechanism 2 also includes two anti-deformation dies 25 corresponding to the two bending wheels 22. The anti-deformation dies 25 are arranged on the side of the corresponding bending wheel 22 close to the conveying mechanism 1 and are used to abut against the side of the pipe away from the bending direction.

[0163] The bending mechanism 2 also includes a support member 26, which slides with the base 3 in the second direction. The bending wheel 22 and the anti-deformation mold 25 are both connected to the support member 26. The support member 26 includes a first portion 261 and a second portion 262. The first portion 261 slides with the base 3 in the second direction, and the second portion 262 slides with the first portion 261 in the height direction. The bending wheel 22 and the anti-deformation mold 25 are disposed in the second portion 262. The anti-deformation mold 25 slides with the second portion 262 in the second direction.

[0164] The bending mechanism 2 further includes a support plate 23 for supporting the bottom of the pipe. The support plate 23 has a hollow portion 231 on one side close to the conveying mechanism 1 , and the bending wheel 22 can pass through the hollow portion 231 to contact the pipe.

[0165] During actual use, the bending mechanism 2 is first controlled to transport the section of the pipe to be bent to the bending station along the first direction, and then one of the bending wheels 22 is controlled to move to the bending station according to the bending direction requirements, and then the pressing module 21 and the bending wheel 22 are controlled to move toward each other in the height direction to clamp the section of the pipe to be bent therebetween, and the anti-deformation mold 25 corresponding to the bending wheel 22 is controlled to press against the pipe. Next, the bending wheel 22 is controlled to rotate around the rotation axis in the height direction to bend the section of the pipe to be bent. After the bending action is completed, the pressing module 21 and the bending wheel 22 are controlled to reset. Then, the bending mechanism 2 can be controlled to transport the next section of the pipe to be bent to the bending station along the first direction, and then the above steps are repeated to achieve continuous bending.

[0166] The embodiment of the present application also provides a pipe processing method, referring to Figure 1 , the pipe processing method includes the following steps:

[0167] Loading step: controlling the conveying mechanism to convey the section of the pipe to be bent to the bending station along a first direction, wherein the first direction is perpendicular to the height direction.

[0168] Fixing step: controlling the pressing module and the bending wheel to move toward each other in the height direction so as to clamp the section of the pipe to be bent between the two.

[0169] Bending step: Control the bending wheel to rotate around the rotation axis in the height direction to bend the section of the pipe to be bent.

[0170] Reset step: After the bending action is completed, control the pressing module and the bending wheel to reset.

[0171] The specific structures of the conveying mechanism, the pressing module and the bending wheel can refer to the description of the relevant parts above and will not be repeated here.

[0172] In the reset step, controlling the pressing module and the bending wheel to reset specifically means controlling the pressing module and the bending wheel to move away from each other in the height direction to return to the position before the fixing step is performed, and controlling the bending wheel to rotate so that the bending wheel returns to the initial rotation position.

[0173] The pipe processing method of the embodiment of the present application can be executed cyclically to achieve continuous bending, which is highly efficient. Furthermore, during the bending step, the pipe is clamped by the pressing module and the bending wheel. This increases the forces acting on the pipe on opposite sides along the height direction, improves the stress distribution of the pipe during bending, and reduces the probability of excessive wall thinning and abnormal deformation after bending. In particular, when bending flat pipes (pipes with rectangular cross-sections), the probability of abnormal bulges on both sidewalls along the height direction after bending can be significantly reduced, thereby improving the quality of the finished product.

[0174] In some embodiments, before the bending step, the method further includes a determining step: determining the travel parameters of the pipe section in contact with the conveying mechanism along the first direction during bending according to the bending requirements of the pipe and the parameters of the bending wheel.

[0175] The bending step also includes: while controlling the bending wheel to rotate around the rotation axis in the height direction, controlling the conveying mechanism to convey the pipe according to the travel parameters.

[0176] During the determination step, the bending requirement can be determined based on actual production and processing requirements. The bending wheel parameters include the rotation rate and angle of the bending wheel, and the travel parameters specifically include the travel distance and travel rate. The specific method for determining the travel parameters based on the bending requirement and the bending wheel parameters can be referenced to relevant technologies in the art and will not be further described here.

[0177] In this embodiment, the conveying mechanism is controlled to convey the pipe while the bending wheel rotates. In this way, the tensile force between the to-be-bent section of the pipe and other sections of the pipe during the bending process can be reduced, thereby helping to further improve the quality of the finished product.

[0178] In some embodiments, there are two bending wheels, and the rotation directions of the two bending wheels are opposite. Before the fixing step, the method also includes a selection step: selecting one of the bending wheels according to the bending requirements of the pipe, and controlling the selected bending wheel to move to the bending station.

[0179] The specific arrangement of the two bending wheels can refer to the description of the relevant parts above and will not be repeated here.

[0180] In this embodiment, the bending of the pipe in both the forward and reverse directions is achieved by controlling the movement of the two bending wheels, which helps to reduce costs and control difficulty. In addition, since the pipe itself does not rotate during the processing, the forward-bent pipe section and the reverse-bent pipe section can maintain good flatness, thereby improving the quality of the finished product.

[0181] An embodiment of the present application further provides a production line for a battery device, which includes a tube processing device according to any of the above embodiments, and the tube processing device is used to process heat exchange tubes of the battery device.

[0182] The production line of the battery device according to the embodiment of the present application has all the advantages of the tube processing device described in any of the above embodiments, which will not be repeated here.

[0183] In the description of this application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0184] The foregoing description is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A pipe processing device, characterized in that: The pipe processing device comprises: a conveying mechanism for conveying the pipe along a first direction, wherein the first direction intersects the height direction; A bending mechanism is provided downstream of the conveying mechanism along the first direction, the bending mechanism comprising a pressing module and a bending wheel provided on the bottom side of the pressing module, the pressing module and the bending wheel can move relative to each other in the height direction to clamp the pipe therebetween, and the bending wheel can rotate around a rotation axis in the height direction to bend the pipe; wherein, The bending mechanism includes two bending wheels, the two bending wheels rotate in opposite directions, and the two bending wheels can be interchangeably moved to a bending station, the two bending wheels are distributed along a second direction, the first direction intersects the second direction, and the first direction and the second direction are both perpendicular to the height direction; The pressing module includes a driving member and a lower pressing wheel connected to the driving member, the driving member is used to drive the lower pressing wheel to move in the height direction to apply a force in the height direction to the pipe, the pipe processing device includes a support structure, the driving member is connected to the top beam of the support structure, and is slidably engaged with the top beam along the second direction; The bending mechanism includes a power module, which includes a power part and a transmission part. The transmission part can be connected to any one of the bending wheels so that the power part can drive the bending wheel to rotate, wherein the transmission part is arranged on the bottom side of the bending station and is arranged as a retractable structure.

2. The pipe processing device according to claim 1, characterized in that: The bending wheel includes a body, and a first step and a second step arranged on the top surface of the body. The first step and the second step are arranged at an interval to form a gap therebetween for the pipe to pass through.

3. The pipe processing device according to claim 2, characterized in that: The first step is a columnar structure, and the axis of the first step forms the rotation axis of the bending wheel. When the bending wheel rotates, the pipe is bent around the circumferential surface of the first step.

4. The pipe processing device according to claim 3, characterized in that: The second step has a supporting plane facing the first step, the supporting plane is parallel to the height direction, and along the extension direction of the supporting plane, one end of the supporting plane is flush with the axis of the first step, and the other end exceeds the first step.

5. The pipe processing device according to claim 3, characterized in that: The body includes a columnar portion and a raised portion, the raised portion protrudes outward from the circumferential surface of the columnar portion, and the top surface of the raised portion is flush with the top surface of the columnar portion, the first step is arranged on the columnar portion and is coaxial with the columnar portion, and the second step is arranged on the raised portion.

6. The pipe processing device according to claim 1, characterized in that: The lower pressing wheel is rotatably connected to the driving member, and the rotation axis is parallel to the height direction, so that the bending wheel can drive the lower pressing wheel to rotate when it rotates.

7. The pipe processing device according to claim 6, characterized in that: One of the lower pressing wheel and the bending wheel has at least one connecting column, and the other has at least one connecting hole. The connecting column can be inserted into the connecting hole to form a rotation-stopping fit between the lower pressing wheel and the bending wheel.

8. The pipe processing device according to claim 1, characterized in that: The bending mechanism includes a support plate for supporting the bottom of the tube. The support plate has a hollow portion on one side close to the conveying mechanism, and the bending wheel can pass through the hollow portion to contact the tube.

9. The pipe processing device according to any one of claims 1 to 8, characterized in that: The bending wheels have an initial rotation position. When both bending wheels are in the initial rotation position, the two bending wheels are symmetrically arranged with respect to a reference plane, and the reference plane is perpendicular to the second direction.

10. The pipe processing device according to claim 9, characterized in that: The bending mechanism also includes two anti-deformation molds arranged in a one-to-one correspondence with the two bending wheels. The anti-deformation molds are arranged on the side of the corresponding bending wheel close to the conveying mechanism and are used to abut against the side of the pipe away from the bending direction.

11. The pipe processing device according to claim 10, characterized in that: The pipe processing device includes a base, the conveying mechanism is arranged on the base, the bending mechanism includes a support member, the support member and the base are slidably matched along the second direction, and the two bending wheels and the two anti-deformation molds are connected to the support member.

12. The pipe processing device according to claim 11, characterized in that: The support member includes a first part and a second part, the first part slides with the base along the second direction, the second part slides with the first part along the height direction, and the bending wheel and the anti-deformation mold are arranged in the second part.

13. The pipe processing device according to claim 12, characterized in that: The anti-deformation mold is slidably matched with the second part along the second direction.

14. The pipe processing device according to claim 1, characterized in that: The conveying mechanism comprises: a guide member extending along the first direction; The clamping member is used to clamp the pipe, and the clamping member and the guide member are slidably matched along the first direction.

15. The pipe processing device according to claim 14, characterized in that: The conveying mechanism further comprises: A plurality of limiting members are distributed along the first direction, each limiting member having a limiting hole for allowing the pipe to pass through, and the limiting hole passes through the limiting member along the first direction.

16. A pipe processing method, characterized in that: The method comprises: Loading step: controlling the conveying mechanism to convey the section of the pipe to be bent to the bending station along a first direction, wherein the first direction is perpendicular to the height direction; Fixing step: controlling the pressing module and the bending wheel to move toward each other in the height direction, so as to clamp the section of the pipe to be bent therebetween and apply a force in the height direction to the pipe; Bending step: controlling the bending wheel to rotate around a rotation axis in a height direction to bend the section of the pipe to be bent; and Resetting step: after the bending action is completed, controlling the pressing module and the bending wheel to reset; wherein the bending mechanism includes two bending wheels, the two bending wheels rotate in opposite directions, the two bending wheels are distributed along a second direction, the first direction intersects with the second direction, and the first direction and the second direction are both perpendicular to the height direction, the pressing module includes a driving member and a lower pressing wheel connected to the driving member, the driving member is used to drive the lower pressing wheel to move in the height direction, the driving member is connected to the top beam of the support structure, and slides with the top beam along the second direction; Before the fixing step, the method further comprises: Selection step: After the loading step is completed, one of the bending wheels is selected according to the bending requirements of the pipe, and the selected bending wheel is controlled to move to the bending station, wherein the bending mechanism includes a power module, the power module includes a power member and a transmission member, the transmission member can be connected to any one of the bending wheels so that the power member can drive the bending wheel to rotate, and the transmission member is arranged on the bottom side of the bending station and is arranged to be a retractable structure.

17. The pipe processing method according to claim 16, characterized in that: Before the bending step, the method further comprises: Determining step: determining, according to the bending requirement of the tube and the parameters of the bending wheel, the travel parameters of the tube section in contact with the conveying mechanism along the first direction during bending; The bending step further includes: while controlling the rotation of the bending wheel, controlling the conveying mechanism to convey the pipe according to the travel parameters.

18. A production line for battery devices, characterized in that: The production line of the battery device comprises the tube processing device according to any one of claims 1 to 15, and the tube processing device is used to process the heat exchange tubes of the battery device.

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