Pipe machining device and method and production line of battery device

Abstract

The embodiment of the invention provides a pipe machining device and method and a production line of a battery device. The pipe machining device comprises a conveying mechanism and a bending mechanism. The conveying mechanism is used for conveying pipes in the first direction, and the first direction intersects with the height direction. The bending mechanism is arranged on the downstream portion, in the first direction, of the conveying mechanism and comprises a downward pressing module and a bending wheel arranged on the bottom side of the downward pressing module, the downward pressing module can apply acting force in the height direction to the pipe so as to fix the pipe to the bending wheel, and the bending wheel can rotate around the rotating axis in the height direction to bend the pipe. The bending mechanism comprises two bending wheels, the rotating directions of the two bending wheels are opposite, and the two bending wheels can move to a bending station in a replaceable mode. According to the pipe machining device and method and the production line of the battery device, the production efficiency is high, the quality of finished products is good, and multi-direction bending can be achieved.

Description

Technical Field

[0001] Embodiments of the present application relate to the technical field of tube processing, and in particular, to a tube processing device, method, and a production line for a battery device. Background Art

[0002] Bending tubes are widely used in various fields. Take the heat exchange tubes of battery devices as an example. The heat exchange tubes of battery devices are usually serpentine structures. In the actual production process, the 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 of the pipe 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 tube processing device, method and battery device production line with high processing efficiency and good finished product quality.

[0005] The first aspect of an embodiment of the present application provides a pipe processing device, which includes: a conveying mechanism for conveying the pipe along a first direction, the first direction intersecting with a height direction; a bending mechanism, arranged downstream of the conveying mechanism along the first direction, the bending mechanism including 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 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 have opposite rotation directions, and the two bending wheels can be moved to a bending station interchangeably.

[0006] In the pipe processing device of the embodiment of the present application, after the conveying mechanism conveys the pipe section to be bent to the bending station, it is only necessary to control the pressing module and the bending wheel to move toward each other in the height direction to clamp the pipe, and then control the bending wheel to rotate to achieve bending. After one section to be bent is bent, it is only necessary to control the pressing module and the bending wheel to reset, and then repeat the above actions to achieve the bending of the next section to be bent, and the efficiency of continuous bending is high.

[0007] Furthermore, during the rotation of the bending wheel, the two opposite sides of the pipe in the horizontal direction will be subjected to the force from the bending wheel. If the pipe is not subjected to the force in the height direction or the force is small, the pipe may be abnormally deformed in the height direction due to the uneven stress distribution, which will cause excessive thinning of part of the pipe wall, affecting the quality of the finished product. In this embodiment, the pipe is clamped by the pressing module and the bending wheel, which will increase the force on the two opposite sides of the pipe in the height 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 tubes (tubes with rectangular cross sections), the probability of abnormal bulges on the two side walls of the flat tube in the height direction after bending can be significantly reduced, thereby improving the quality of the finished product.

[0008] Furthermore, in the related art, the bending of the pipe in different directions is usually achieved by rotating the pipe around its axial direction. The cost of rotating the pipe is high, and the rotation accuracy is difficult to ensure, so it is difficult to meet the flatness requirements. In this embodiment, the bending mechanism is provided with two bending wheels with opposite rotation directions, so that bending in both directions can be 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 pipe section bent in the forward direction and the pipe section bent in the reverse direction can maintain a good flatness, thereby 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 disposed 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 the present 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 is formed as the rotation axis of the bending wheel, and the bending wheel bends the tube around the circumferential surface of the first step when rotating.

[0012] In this embodiment, the first step is configured as a columnar structure, so that the circumferential surface of the first step can guide the bending of the tube, thereby improving the control accuracy of the bending angle and bending position of the tube, and further improving the quality of the finished product.

[0013] In some embodiments, 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.

[0014] In this embodiment, the second step is configured to have a support plane, which helps to increase the contact area between the second step and the tube during the bending process, making the force on the tube more uniform, and when bending a flat tube (a tube with a rectangular cross section), it can further reduce the thinning rate of the tube wall after the tube is bent. Furthermore, the axis of the first step is the rotation axis of the bending wheel, and one end of the support plane extending in the direction of the rotation axis is flush with the rotation axis, which helps to make the tube better fit with the support plane during the rotation of the bending wheel, and the other end of the support plane exceeds the first step, which helps to make the tube better fit with the circumferential surface of the second step during the rotation of the bending wheel, and helps to improve 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 main body is configured to include a columnar portion and a convex portion, which helps to reduce the volume of the main body and further reduce the volume of the bending wheel compared to directly configuring the main 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 one 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 are 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. 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.

[0023] In this embodiment, the two bending wheels share the same power component, thus simplifying the overall structure of the device and reducing costs.

[0024] 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 both the first direction and the second direction are perpendicular to the height direction, and the reference plane is perpendicular to the second direction.

[0025] 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 when they move relative to the bending station can be simplified, thereby improving the movement efficiency.

[0026] In some embodiments, the bending mechanism also includes two anti-deformation molds arranged one by one corresponding to 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 tube away from the bending direction.

[0027] In this embodiment, an anti-deformation mold is arranged on the side of the bending wheel close to the conveying mechanism. The anti-deformation mold can be 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.

[0028] 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 are slidably matched along the second direction, and the two bending wheels and the two anti-deformation molds are connected to the support member.

[0029] 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.

[0030] 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.

[0031] In this embodiment, the two bending wheels are both connected to the second part. Therefore, the positions of the two bending wheels in the height direction can be adjusted by simply controlling the second part to slide relative to the first part in the height direction, thereby reducing costs.

[0032] In some embodiments, the anti-deformation mold is slidably matched with the second part along the second direction.

[0033] In this embodiment, the anti-deformation mold and the second part slide together along the second direction. In this way, in actual use, the interaction force between the anti-deformation mold and the pipe can be controlled within a reasonable range by adjusting the position of the anti-deformation mold, thereby improving the anti-deformation effect.

[0034] In some embodiments, the conveying mechanism includes: a guide member extending along the first direction; a clamping member for clamping the tube, and the clamping member and the guide member are slidably matched along the first direction.

[0035] 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.

[0036] 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.

[0037] In this embodiment, a plurality of limit members distributed along the first direction are added to the conveying structure, so that the stability and smoothness of the pipe conveying can be further improved.

[0038] 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 a height direction; a fixing step: controlling a pressing module and a bending wheel to move toward each other along a height direction so as to clamp the pipe section to be bent therebetween; a bending step: controlling the bending wheel to rotate around a rotation axis in a height direction so as 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 requirement of the pipe, and controlling the selected bending wheel to move to the bending station.

[0039] The pipe processing method of the embodiment of the present application can be executed cyclically to achieve continuous bending, and the efficiency of continuous bending is relatively high. In addition, in the bending step, the pipe is clamped by the pressing module and the bending wheel, which can increase the force on the opposite sides of the pipe in the height 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 protrusions on the two side walls of the flat pipe in the height direction after bending can be significantly reduced, thereby improving the quality of the finished product.

[0040] Furthermore, in this embodiment, the bending of the pipe in both the forward and reverse directions is achieved by controlling the action 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 a good flatness, thereby improving the quality of the finished product.

[0041] In some embodiments, before the bending step, the method also includes: a determination 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; the bending step also includes: while controlling the rotation of the bending wheel, controlling the conveying mechanism to convey the pipe according to the travel parameters.

[0042] 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. A third aspect of the embodiments of the present application provides a production line for a battery device, the production line for the battery device comprising the tube processing device described in the first aspect of the embodiments of the present application, the tube processing device being used to process heat exchange tubes of the battery device.

[0043] The production line of the battery device of 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

[0044] Figure 1 A side view of a pipe processing device according to an embodiment of the present application; Figure 2 Another side view of the pipe processing device according to an embodiment of the present application; Figure 3 This is an axial schematic diagram of the conveying mechanism and the bending mechanism of the embodiment of the present application, wherein the base and other structures of the pipe processing device are hidden; Figure 4 This is a schematic diagram of the structure of the bending wheel of an embodiment of the present application; Figure 5 This is a schematic diagram of the positional relationship of the bending wheel, the pressing module, and the anti-deformation mold in an embodiment of the present application.

[0045] Description of Reference Numerals 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

[0046] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with 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.

[0047] The various specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction, for example, different embodiments and technical solutions can be formed by combining different specific technical features. In order to avoid unnecessary repetition, various possible combinations of the specific technical features in the present invention will not be described separately.

[0048] In the following description, the terms "first\second\..." are only used to distinguish different objects, and do not mean that the objects have the same or related points. It should be understood that the directions "above", "below", "outside" and "inside" are all directions in normal use, and the directions "left" and "right" refer to the left and right directions shown in the specific corresponding schematic diagrams, which may be the left and right directions in normal use or not.

[0049] It should be noted that the terms "comprises", "includes" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element. "Multiple" means greater than or equal to two.

[0050] In the description of the present application, the orientations or positional relationships of “first direction”, “second direction” and “height direction” are based on the orientations or positional relationships 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 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 and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0051] In the description of the embodiments of the present application, the orientation or position relationship 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 orientation or position relationship 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 referred device or element 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.

[0052] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] 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 may be direct contact or contact through an intermediate medium layer. It may be contact with essentially no interaction force between the two contacting parties, or it may be contact with interaction force between the two contacting parties.

[0054] An embodiment of the present application provides a tube processing device, which can be used to process any suitable tube. In the relevant part below, the tube processing device will be mainly described by taking the application of the tube processing device to process heat exchange tubes of a battery device as an example.

[0055] The battery device mentioned in the present application includes a box and at least one battery cell arranged in the box. The heat exchange tube is used to accommodate the heat exchange structure to achieve heat exchange of the battery cell. The heat exchange tube includes multiple bending sections to increase the heat exchange area between it and the battery cell.

[0056] In the process of preparing heat exchange tubes, the tubes need to be bent multiple times, and the bending angles are usually large, such as more than 90°, or even close to 180°. The tube processing device provided by the related technology needs to go through a series of complex processes to adjust the position of the tube after one bending before the next bending can be performed. In addition, when bending at a large angle, the tube wall is prone to excessive thinning or abnormal deformation, resulting in a decrease in product quality.

[0057] In view of the above 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, 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 along the height direction to the pipe to fix the pipe to the bending wheel, and the bending wheel can rotate around the rotation axis in the height direction to bend the pipe.

[0058] In the battery processing device of the embodiment of the present application, after the conveying mechanism conveys the section of the tube to be bent to the bending station, it is only necessary to control the pressing module and the bending wheel to move toward each other in the height direction to clamp the tube, and then control the bending wheel to rotate to achieve bending. After one section to be bent is bent, it is only necessary to control the pressing module and the bending wheel to reset, and then repeat the above actions to achieve the bending of the next section to be bent, and the efficiency of continuous bending is high.

[0059] Furthermore, during the rotation of the bending wheel, the two opposite sides of the pipe in the horizontal direction will be subjected to the force from the bending wheel. If the pipe is not subjected to the force in the height direction or the force is small, the pipe may be abnormally deformed in the height direction due to the uneven stress distribution, which will cause excessive thinning of part of the pipe wall, affecting the quality of the finished product. In this embodiment, the pipe is clamped by the pressing module and the bending wheel, which will increase the force on the two opposite sides of the pipe in the height 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.

[0060] 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, and the first direction intersects with the height direction. The bending mechanism 2 is arranged downstream of the conveying mechanism 1 along the first direction, and the bending mechanism 2 includes a pressing module 21 and a bending wheel 22 arranged at the bottom side of the pressing module 21. The pressing module 21 can apply a force along the height direction to the pipe to fix the pipe to the bending wheel 22, and the bending wheel 22 can rotate around the rotation axis in the height direction to bend the pipe.

[0061] 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 slidingly matched with the guide member 11 in the first direction, and a power structure (such as a motor, a cylinder, an oil cylinder, etc.) for driving the clamping member 12 to slide along the guide member 11. The clamping member 12 can clamp the pipe, and when the clamping member 12 slides relative to the guide member 11 in the first direction, the pipe is driven to move in the first direction.

[0062] As an example, the first direction is perpendicular to the height direction.

[0063] 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 well 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 may be connected to the top beam of the gantry, and the bending wheel 22 may be connected to the base 3.

[0064] The pressing module 21 and the bending wheel 22 can move relative to each other in the height direction, which specifically means that any one of the pressing module 21 and the bending wheel 22 can move relative to the other in the height direction. The specific implementation method of the pressing module 21 and the bending wheel 22 moving relative to each other in the height direction is not limited, and the relevant part below will specifically introduce several possible implementation methods, which will not be repeated here.

[0065] 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.

[0066] The specific structure of the bending wheel 22 can refer to the relevant technology in the art. As an example, a gap for the pipe to pass through can be formed on the bending wheel 22, or the bending wheel 22 can cooperate with other structures to form a gap for the pipe to pass through. The top side of the gap can be open so that the pressing module 21 on the top side can be pressed against the pipe to achieve clamping.

[0067] 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, and the power structure may be a motor. The specific configuration of the power structure may refer to the description of the relevant part below, and will not be repeated here.

[0068] In actual use, the conveying mechanism 1 can be controlled to convey the section of the pipe to be bent to the bending station, and then the pressing module 21 and the bending wheel 22 can be controlled to move toward each other in the height direction to clamp the section of the pipe to be bent. At this time, the section to be bent will be located in the above-mentioned gap. Then, the bending wheel 22 can be controlled to rotate around the rotation axis in the height direction. At this time, the extension direction of the above-mentioned gap will change, forcing the section to be bent to bend along the rotation direction of the bending wheel 22.

[0069] In the pipe processing device of the embodiment of the present application, after the conveying mechanism 1 conveys the section of the pipe to be bent to the bending station, it is only necessary to control the pressing module 21 and the bending wheel 22 to move toward each other in the height direction to clamp the pipe, and then control the bending wheel 22 to rotate to achieve bending. After one section to be bent is bent, it is only necessary to control the pressing module 21 and the bending wheel 22 to reset, and then repeat the above actions to achieve the bending of the next section to be bent, and the efficiency of continuous bending is high.

[0070] Furthermore, during the rotation of the bending wheel 22, the two opposite sides of the pipe in the horizontal direction will be subjected to the force from the bending wheel 22. If the pipe is not subjected to the force in the height direction or the force is small, the pipe may be abnormally deformed in the height direction due to the uneven stress distribution, which will cause excessive thinning of part 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, which will increase the force on the two opposite sides of the pipe in the height 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 the pipe is bent. In particular, when bending a flat tube (a tube with a rectangular cross section), the probability of abnormal protrusions on the two side walls of the flat tube in the height direction after bending can be significantly reduced, thereby improving the quality of the finished product.

[0071] 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 disposed 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.

[0072] The specific structures of the body 221, the first step 222, and the second step 223 are not limited. As an example, the first step 222 and the second step 223 can be fixed to the top surface of the body 221 by bonding, welding, etc., or the body 221, the first step 222, and the 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 the second step 223 can be slidably matched with the body 221, so that the gap size between the first step 222 and the second step 223 can be adjusted, so as to adapt to pipes of different sizes.

[0073] The first step 222 and the second step 223 are arranged at intervals so as 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 side surfaces of the pipe in the horizontal direction respectively abut against the bottom surface of the pressing module 21 and the top surface of the body 221, and the two opposite side surfaces in the horizontal direction respectively abut against the first step 222 and the second step 223.

[0074] In some related technologies, a gap is formed between the bending wheel and the swing block arranged at one side of the bending wheel for the pipe to pass through. In actual use, two power systems are required to drive the bending wheel and the swing block synchronously to achieve bending, which is costly and requires high control accuracy. In addition, the swing block is usually also equipped with a driving mechanism for driving it to move closer to or away from the bending wheel, which makes the turning radius of the bending wheel and the swing block larger when they rotate synchronously, and the turning space requirement is higher, which may be limited and unable to achieve large-angle bending (for example, bending greater than 90°).

[0075] In the present 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 the rotation space, and facilitate large-angle bending.

[0076] 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 technology in the art as the bending wheel 22 of the present application according to actual use requirements.

[0077] 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 tube is bent around the circumferential surface of the first step 222 .

[0078] by Figure 5 For example, in actual use, the bending wheel 22 can be controlled to Figure 5 The tube is rotated in the direction indicated by the arc arrow, so that the tube is bent around the circumferential surface of the first step 222.

[0079] 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 tube, improve the control accuracy of the bending angle and bending position of the tube, and thus improve the quality of the finished product.

[0080] 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.

[0081] 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 .

[0082] In this embodiment, the second step 223 is configured to have a support plane 2231, which helps to increase the contact area between the second step 223 and the tube during the bending process, making the force on the tube more uniform, and when bending a flat tube (a tube with a rectangular cross section), the thinning rate of the tube wall after the tube is bent can be further reduced. Furthermore, the axis of the first step 222 is the rotation axis of the bending wheel 22, and one end of the support plane 2231 extending in the direction of the support plane 2231 is flush with the rotation axis, which helps to make the tube better fit with the support plane 2231 during the rotation of the bending wheel 22, and the other end of the support plane 2231 exceeds the first step 222, which helps to make the tube better fit with the circumferential surface of the second step 223 during the rotation of the bending wheel 22, and helps to improve the accuracy of the bending angle.

[0083] It should be noted that the structural form of the first step 222 and the second step 223 is not limited thereto. For example, the first step 222 and the second step 223 may 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 may 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 may each have abutment plane 2231 facing the other. In this embodiment, when the bending wheel 22 rotates, the pipe section of the pipe located between the bending wheel 22 and the conveying mechanism 1 will be bent.

[0084] 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, and the second step 223 is arranged on the raised portion 2212.

[0085] 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 .

[0086] The specific shape of the raised portion 2212 is not limited, and those skilled in the art can determine it according to 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 it can be higher or lower than the bottom surface of the columnar portion 2211.

[0087] 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.

[0088] In this embodiment, the main body 221 is configured to include a columnar portion 2211 and a convex portion 2212 , which helps to reduce the volume of the main body 221 and further reduce the volume of the bending wheel 22 compared to directly configuring the main body 221 as a columnar structure.

[0089] 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.

[0090] 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, and 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.

[0091] In some embodiments, as mentioned above, the pipe processing device includes a support structure 4, and the driving member 211 can be connected to the top beam of the support mechanism. In some embodiments, the driving member 211 can slide with the top beam of the support mechanism in the horizontal direction (such as sliding in the first direction and / or the second direction), so that the position of the lower pressing wheel 212 in the horizontal direction can be adjusted during actual use so that it can be directly above the pipe and the bending wheel 22.

[0092] 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, or 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.

[0093] As another example, the lower pressing wheel 212 may be a structure similar to the bending wheel 22 described in any of the above embodiments. For example, the lower pressing wheel 212 may 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 the first step 222, and the structure of the fourth step is similar to the second step 223. In 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.

[0094] 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, thereby improving the quality of the finished product.

[0095] 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 non-rotating fit between the lower pressing wheel 212 and the bending wheel 22.

[0096] The specific structure and number of the connecting column 2121 and the connecting hole 224 are not limited. For example, the lower pressure wheel 212 has a connecting column 2121, and the bending wheel 22 has 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.

[0097] 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 can achieve synchronous rotation during actual use, further improving the quality of the finished product.

[0098] 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 when the tube is bent.

[0099] 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 to contact the pipe.

[0100] 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, wooden plate, etc.

[0101] It can be understood that pipes that are 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.

[0102] 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 to the bending station replaceably.

[0103] The bending station here specifically refers to a position that can clamp the pipe together with the pressing module 21.

[0104] 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.

[0105] The two bending wheels 22 here can be moved to the bending station interchangeably, which should be understood as both bending wheels 22 can move 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 not be a situation where the two bending wheels 22 are in the bending station at the same time.

[0106] 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 refer to the description of the relevant part below and will not be repeated here.

[0107] In actual use, it is possible to determine which bending wheel 22 is moved to the bending station for the bending action according to the required bending direction. For example, the rotation direction of one bending wheel 22 is defined as the forward direction, and the rotation direction of the other bending wheel 22 is defined as the reverse direction. 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.

[0108] In the related art, the bending of the pipe in different directions is usually achieved by rotating the pipe around the axial direction of the pipe. The cost of rotating the pipe is high, and the rotation accuracy is difficult to ensure, so it is difficult to meet the flatness requirements. In this embodiment, the bending mechanism 2 is provided with two bending wheels 22 with opposite rotation directions, so that bending in both directions can be achieved by controlling the movement of the two bending wheels 22, which helps to reduce costs and control difficulty. In addition, since the pipe itself does not rotate during the processing, the pipe section bent in the forward direction and the pipe section bent in the reverse direction can maintain a good flatness, thereby improving the quality of the finished product.

[0109] 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 bending wheel 22 so that the power member 241 can drive the bending wheel 22 to rotate.

[0110] The specific structure of the power member 241 is not limited. As an example, the power member 241 may be a servo motor. In actual use, the forward and reverse rotations of the power member 241 may be controlled to meet the rotation direction requirements of the corresponding bending wheel 22 .

[0111] 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 arranged on the bottom side of the bending station. The top end of the transmission member 242 can be connected to the bending wheel 22. More specifically, the transmission member 242 can be a flat clamp cylinder. After the corresponding bending wheel 22 moves to the bending station, the transmission member 242 can extend to the top side to be connected to the bending wheel 22. When the bending wheel 22 needs to be switched, the transmission member 242 can be retracted first to disconnect from the transmission member 242, so that the bending wheel 22 can leave the bending station. After another bending wheel 22 moves to the bending station, the transmission member 242 is re-extended to be connected to the bending wheel 22.

[0112] The transmission member 242 may be directly connected to the bending wheel 22, or may be indirectly connected to the bending wheel 22 via other intermediate structures, and there is no limitation to this.

[0113] In this embodiment, the two bending wheels 22 share the same power member 241, so that the overall structure of the device can be simplified and the cost can be reduced.

[0114] Of course, in some other embodiments, independent driving mechanisms may be provided for the two bending wheels 22 to drive them to rotate.

[0115] 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.

[0116] As an example, the first direction, the second direction and the third direction are perpendicular to each other.

[0117] The initial rotation position here should be understood as the position when the bending wheel 22 has not started to rotate, or in other words, the position that allows the unbent tube to pass through the gap of the bending wheel 22 along the first direction. As an example, Figure 5 The bending wheel 22 shown in FIG. 1 is in the initial rotation position.

[0118] 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 step 222 and the second step 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.

[0119] 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.

[0120] In some other embodiments, the two bending wheels 22 may also be distributed along any other suitable direction, including the first direction.

[0121] In some embodiments, reference Figure 3 and Figure 5 The bending mechanism 2 also includes two anti-deformation dies 25 arranged one by one with 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.

[0122] Here, the side of the tube away from the bending direction should be understood as the side surface of the tube 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 tube is a plane. Take the bending wheel 22 including the body 221, the first step 222 and the second step 223 as an example, refer to 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 tube.

[0123] 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 be 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.

[0124] 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.

[0125] 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 and the base 3 slide together along the second direction, and the two bending wheels 22 and the two anti-deformation molds 25 are connected to the support member 26.

[0126] The specific structure of the base 3 and the support member 26 and the specific implementation method of the sliding fit 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 extends along the second direction, and the support member 26 is arranged on the conveyor belt structure, so as to achieve the sliding fit between the support member 26 and the base 3 along the second direction.

[0127] In this embodiment, the two bending wheels 22 and the two anti-deformation molds 25 are both connected to the support member 26. In this way, the position of the two bending wheels 22 and the two anti-deformation molds 25 relative to the bending station can be adjusted by simply controlling the support member 26 to slide along the second direction, thereby improving operation efficiency and reducing costs.

[0128] In some other embodiments, the two bending wheels 22 and the two anti-deformation mechanisms may also independently slide with the base 3 .

[0129] 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 .

[0130] The specific structures of the first part 261 and the second part 262 and the implementation method of the sliding fit are not limited.

[0131] In this embodiment, the two bending wheels 22 are both connected to the second part 262. Therefore, the positions of the two bending wheels 22 in the height direction 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.

[0132] Of course, in some other embodiments, the two bending wheels 22 may also respectively slide with the first part 261 along the height direction.

[0133] In some embodiments, the anti-deformation mold 25 and the second portion 262 are slidably matched along the second direction.

[0134] The specific implementation method of the anti-deformation mold 25 slidingly matching 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 slidingly matching with the second part 262.

[0135] In this embodiment, the anti-deformation mold 25 and the second part 262 slide together along the second direction. In this way, in actual use, the interaction force between the anti-deformation mold 25 and the pipe can be controlled within a reasonable range by adjusting the position of the anti-deformation mold 25, thereby improving the anti-deformation effect.

[0136] 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.

[0137] 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 cooperatively connected to improve the stability and movement accuracy of the clamping member 12 when moving along the guide member 11.

[0138] 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.

[0139] 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.

[0140] In some embodiments, the conveying mechanism 1 further includes a plurality of limit members 13 distributed along the first direction. The limit members 13 have limit holes 131 for the pipe to pass through. The limit holes 131 penetrate the limit members 13 along the first direction.

[0141] The specific structure of the limiter 13 is not limited, and 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.

[0142] In this embodiment, a plurality of limit members 13 distributed along the first direction are added to the conveying structure, so that the stability and smoothness of the pipe conveying can be further improved.

[0143] The following will provide a more detailed and specific description of the pipe processing device involved in one or more of the above embodiments in conjunction with a specific example.

[0144] 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.

[0145] The conveying mechanism 1 specifically includes a guide member 11, a clamping member 12 and a plurality of stoppers 13. The guide member 11 is disposed on the top surface of the base 3 and extends along the first direction. The clamping member 12 is used to clamp the pipe. The clamping member 12 and the guide member 11 slide together along the first direction. The plurality of stoppers 13 are disposed on a 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 pipe to pass through. The stopper holes 131 penetrate the stopper 13 along the first direction.

[0146] The bending mechanism 2 includes a pressing module 21 and two bending wheels 22. The two bending wheels 22 rotate in opposite directions and can be moved to the bending station replaceably. 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.

[0147] The 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.

[0148] 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.

[0149] The bending wheel 22 includes a body 221, and a first step 222 and a second step 223 disposed 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.

[0150] 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 tube is bent around the circumferential surface of the first step 222 .

[0151] 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 .

[0152] 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, and the second step 223 is arranged on the raised portion 2212.

[0153] 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.

[0154] 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.

[0155] The bending mechanism 2 also includes two anti-deformation dies 25 arranged one-to-one 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.

[0156] The bending mechanism 2 further includes a support member 26, which is slidably matched with the base 3 along the second direction, and 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 part 261 and a second part 262, the first part 261 is slidably matched with the base 3 along the second direction, the second part 262 is slidably matched with the first part 261 along the height direction, and the bending wheel 22 and the anti-deformation mold 25 are arranged on the second part 262. The anti-deformation mold 25 is slidably matched with the second part 262 along the second direction.

[0157] The bending mechanism 2 further comprises a support plate 23, which is used to support 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.

[0158] In actual use, first, the bending mechanism 2 is controlled to convey 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 between the two, 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 convey 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.

[0159] The embodiment of the present application also provides a pipe processing method, referring to Figure 1 , the pipe processing method comprises the following steps: 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.

[0160] 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.

[0161] 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.

[0162] Reset step: After the bending action is completed, control the pressing module and the bending wheel to reset.

[0163] The specific structures of the conveying mechanism, the pressing module and the bending wheel can refer to the description of the relevant parts in the above text, and will not be repeated here.

[0164] In the resetting 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.

[0165] The pipe processing method of the embodiment of the present application can be executed cyclically to achieve continuous bending, and the efficiency of continuous bending is relatively high. In addition, in the bending step, the pipe is clamped by the pressing module and the bending wheel, which can increase the force on the opposite sides of the pipe in the height 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 protrusions on the two side walls of the flat pipe in the height direction after bending can be significantly reduced, thereby improving the quality of the finished product.

[0166] In some embodiments, before the bending step, the method further includes a determining step: determining the travel parameters of the tube section in contact with the conveying mechanism along the first direction during bending according to the bending requirements of the tube and the parameters of the bending wheel.

[0167] 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.

[0168] In the determination step, the bending requirement can be determined according to the actual production and processing requirements, the parameters of the bending wheel include the rotation rate and rotation angle of the bending wheel, and the travel parameters specifically include the travel distance and the travel rate. The specific method of determining the travel parameters according to the bending requirement and the parameters of the bending wheel can refer to the relevant technology in the field, which will not be repeated here.

[0169] 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.

[0170] In some embodiments, there are two bending wheels, and the two bending wheels rotate in opposite directions. 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.

[0171] The specific arrangement of the two bending wheels can refer to the description of the relevant parts in the above text, which will not be repeated here.

[0172] In this embodiment, the bending of the pipe in both the forward and reverse directions is achieved by controlling the action 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 a good flatness, thereby improving the quality of the finished product.

[0173] An embodiment of the present application further provides a production line for a battery device, the production line for the battery device comprising a tube processing device as described in any of the above embodiments, the tube processing device being used for processing heat exchange tubes of the battery device.

[0174] The production line of the battery device of 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.

[0175] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 the present application, the schematic representation of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0176] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope 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 with the height direction; A bending mechanism is arranged downstream of the conveying mechanism along the first direction, the bending mechanism comprises a pressing module and a bending wheel arranged at 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 comprises two bending wheels, the two bending wheels rotate in opposite directions, and the two bending wheels can be moved to the bending station replaceably.

2. The pipe processing device according to claim 1, characterized in that: The bending wheel comprises a body, and a first step and a second step arranged on the top surface of the body, wherein the first step and the second step are arranged at an interval so as 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 is formed as the rotation axis of the bending wheel. When the bending wheel rotates, the tube 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 contact plane facing the first step, the contact plane is parallel to the height direction, and along the extension direction of the contact plane, one end of the contact 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, wherein the raised portion is raised 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 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 along the height direction, 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 so that the lower pressing wheel and the bending wheel form a non-rotating fit.

8. The pipe processing device according to claim 1, characterized in that: The bending mechanism comprises 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. 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 mechanism comprises a power module, and the power module comprises 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.

10. The pipe processing device according to any one of claims 1 to 8, characterized in that: 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.

11. The pipe processing device according to claim 10, characterized in that: The bending mechanism also includes two anti-deformation dies arranged one-to-one with the two bending wheels. The anti-deformation dies 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 tube away from the bending direction.

12. The pipe processing device according to claim 11, 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.

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

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

15. 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.

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

17. A method for processing a pipe, 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 between the two; Bending step: controlling the bending wheel to rotate around a rotation axis in a height direction to bend the to-be-bent section of the tube; and 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 includes: Selection step: After the bending action is completed, one of the bending wheels is selected according to the bending requirements of the tube, and the selected bending wheel is controlled to move to the bending station.

18. The method for processing a pipe according to claim 17, characterized in that: Before the bending step, the method further comprises: Determining step: determining the travel parameters of the pipe section of the pipe 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; 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.

19. 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 16, and the tube processing device is used for processing the heat exchange tubes of the battery device.

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