Heat exchanger fin forming equipment and heat exchanger fin forming method

Abstract

The present invention relates to a heat exchange fin forming device and a heat exchange fin forming method. A heat exchange fin forming device includes: a workbench, a first working edge, a second working edge, a third working edge, and a fourth working edge. Among them, the workbench is provided with a forming position for accommodating the heat exchange fin; the first working edge, the second working edge, the third working edge, and the fourth working edge are arranged on the outer periphery of the forming position, and clamping components for abutting against the heat exchange fin are provided on each of the first working edge to the fourth working edge. At least one of the first working edge and the second working edge can move relatively, and at least one of the third working edge and the fourth working edge can move relatively to limit the heat exchange fin and place it in the clamping components. The above heat exchange fin forming device does not require the participation of a forming mold, simplifies the structure of the heat exchange fin forming device, and reduces the space occupied by the heat exchange fin forming device.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange fin forming, and particularly to a heat exchange fin forming device and a heat exchange fin forming method. Background Art

[0002] As an important component for transferring heat in a heat exchanger, the manufacturing method of heat exchange fins has received increasing attention in the industry. During the forming process of heat exchange fins, a forming die is usually required. The forming die consists of an upper die and a lower die, and thus heat exchange fins with corresponding shapes can be manufactured through the shapes of the upper die and the lower die. However, the method of forming heat exchange fins using a forming die still has deficiencies. On the one hand, due to the need for processes such as aligning the upper die and the lower die and mold flipping, the forming process of heat exchange fins is relatively complex. On the other hand, since the required dimensions of heat exchange fins are usually large, the forming die for manufacturing heat exchange fins also needs to be manufactured into corresponding dimensions, resulting in the forming die occupying a large space. Summary of the Invention

[0003] Based on this, it is necessary to provide a heat exchange fin forming device and a heat exchange fin forming method for solving the problem that the existing forming die occupies a large space.

[0004] A heat exchange fin forming device includes:

[0005] A workbench provided with a forming position for accommodating heat exchange fins;

[0006] A first working edge, a second working edge, a third working edge, and a fourth working edge arranged on the periphery of the forming position. Clamping components for abutting against heat exchange fins are provided on all of the first working edge to the fourth working edge. At least one of the first working edge and the second working edge can move relatively, and at least one of the third working edge and the fourth working edge can move relatively to limit the heat exchange fins and place them in the clamping components.

[0007] The above heat exchange fin forming device limits the heat exchange fin through the first working edge to the fourth working edge. On the one hand, it can prevent the heat exchange fin from generating displacement during the forming process, help the heat exchange fin achieve positioning, ensure the positioning accuracy of the heat exchange fin during the forming process, and thus improve the yield of the heat exchange fin. On the other hand, it also places the heat exchange fin in the clamping assembly for easy fixing and clamping. By providing a clamping assembly for abutting against the heat exchange fin on the first working edge to the fourth working edge, the heat exchange fin can be fixed and supported during the forming process, so that the heat exchange fin will not generate relative movement relative to the first working edge to the fourth working edge during the forming process, enabling the pressure of the fluid to be more effectively applied to the bulging of the heat exchange fin during bulging and improving the forming efficiency of the heat exchange fin. When applying the above heat exchange fin forming device, there is no need for the participation of a forming die. After the clamping assembly abuts against the heat exchange fin, filling the medium into the heat exchange fin can achieve the bulging and forming of the heat exchange fin, simplifying the structure of the heat exchange fin forming device and reducing the space occupied by the heat exchange fin forming device.

[0008] In one embodiment, the heat exchange fin forming device further includes a stretching device. The stretching device includes a first connection assembly, a second connection assembly, and a first driving assembly. The first connection assembly is used to connect to the heat exchange fin. The workbench, the second connection assembly, and the first driving assembly are sequentially connected to each other. The output end of the first driving assembly is connected to the first connection assembly so that the first connection assembly can move relative to the second connection assembly.

[0009] In one embodiment, the stretching device further includes a rotating shaft. The rotating shaft is connected to the output shaft of the driving assembly. The rotating shaft is threadedly connected to the first connection assembly. The first driving assembly drives the rotating shaft to rotate so that the first connection assembly can move along the length direction of the rotating shaft.

[0010] In one embodiment, the first connection assembly is provided with a first guiding groove. The workbench is connected with a first guiding member. The first guiding member passes through the first guiding groove and can move along the length direction of the first guiding groove; and / or,

[0011] The second connection assembly is provided with a second guiding groove. The first connection assembly is connected with a second guiding member. The second guiding member passes through the second guiding groove and can move along the length direction of the second guiding groove.

[0012] In one embodiment, the clamping assembly includes a first clamping plate, a second clamping plate, and a second driving assembly. The first clamping plate and the second clamping plate are oppositely arranged for abutting against the heat exchange plate. The second driving member is connected to the first clamping plate and / or the second clamping plate so that the first clamping plate and the second clamping plate can approach each other to clamp the heat exchange fin.

[0013] In one embodiment, the heat exchange fin forming device further includes a first guide rail and a third driving assembly. At least one of the first working edge and the second working edge is slidably connected to the first guide rail, and the third driving member is connected to the first working edge and / or the second working edge for driving the first working edge and the second working edge to move relative to each other; and / or,

[0014] The heat exchange fin forming device further includes a second guide rail and a fourth driving member. At least one of the third working edge and the fourth working edge is slidably connected to the second guide rail, and the fourth driving member is connected to the third working edge and / or the fourth working edge for driving the third working edge and the fourth working edge to move relative to each other.

[0015] A heat exchange fin forming method includes the following steps:

[0016] The first working edge and the second working edge move towards each other, and the third working edge and the fourth working edge move towards each other to limit the heat exchange fin;

[0017] The first working edge, the second working edge, the third working edge and the fourth working edge respectively clamp the outer periphery of the heat exchange fin;

[0018] Fill the heat exchange fin with a medium, and the heat exchange fin bulges;

[0019] Stop filling the heat exchange fin with the medium, and the heat exchange fin is formed.

[0020] In the above heat exchange fin forming method, by limiting the heat exchange fin with the first working edge to the fourth working edge, on the one hand, it can prevent the heat exchange fin from generating displacement during the forming process, and on the other hand, it can help the heat exchange fin to achieve positioning, ensuring the positioning accuracy of the heat exchange fin during the forming process, thereby improving the yield of the heat exchange fin; by clamping the outer periphery of the heat exchange fin with the first working edge to the fourth working edge, it can ensure that the edge of the heat exchange fin does not generate relative movement relative to the first working edge to the fourth working edge during the forming process, which is helpful for the subsequent bulging step of the heat exchange fin, thereby improving the forming efficiency of the heat exchange fin; by filling the heat exchange fin with a medium to cause the heat exchange fin to bulge, it can use the static pressure generated by the medium to form a bulging space in the heat exchange fin to achieve the forming of the heat exchange fin. Using the above heat exchange fin forming method, without the participation of a forming mold, by limiting, clamping and bulging the heat exchange fin, the forming of the heat exchange fin can be realized, simplifying the forming process of the heat exchange fin and improving the manufacturing efficiency of the heat exchange fin.

[0021] In one embodiment, after the step "the first working edge, the second working edge, the third working edge and the fourth working edge respectively clamp the outer periphery of the heat exchange fin", the following steps are further included:

[0022] The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to stretch the heat exchange fin.

[0023] In one embodiment, in the step of "filling the heat exchange fin with a medium and causing the heat exchange fin to bulge", the following steps are further included:

[0024] The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to stretch the heat exchange fin.

[0025] In one embodiment, after the step of "filling the heat exchange fin with a fluid to cause the heat exchange fin to bulge", the following steps are further included:

[0026] Detect the bulging height of the heat exchange fin;

[0027] If the height of the heat exchange fin does not meet the standard, continue to bulge;

[0028] If the height of the heat exchange fin meets the standard, stop bulging.

[0029] In one embodiment, after the step of "forming the heat exchange fin", the following steps are further included:

[0030] The first working edge, the second working edge, the third working edge and the fourth working edge respectively release the outer periphery of the heat exchange fin;

[0031] The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to release the limitation on the heat exchange fin.

[0032] In one embodiment, before the step of "the first working edge and the second working edge move towards each other, and the third working edge and the fourth working edge move towards each other to limit the heat exchange fin", the following steps are further included:

[0033] Lift the heat exchange fin to move the heat exchange fin to the forming position; and / or,

[0034] After the step of "stopping filling the heat exchange fin with a medium and forming the heat exchange fin", the following steps are further included:

[0035] Lift the heat exchange fin to remove the heat exchange fin from the forming position. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of a heat exchange fin forming device according to an embodiment;

[0037] Figure 2 It is a three-dimensional structural diagram of a stretching device of a heat exchange fin forming device according to an embodiment;

[0038] Figure 3 Front view of the stretching device of the heat exchange fin forming device according to an embodiment;

[0039] Figure 4 is Figure 3 View of the stretching device of the heat exchange fin forming device in the direction N in

[0040] Figure 5 is Figure 3 Cross-sectional view of the stretching device of the heat exchange fin forming device in the direction C in

[0041] Figure 6 is Figure 3 Cross-sectional view of the stretching device of the heat exchange fin forming device in the direction A in

[0042] Figure 7 Schematic flow chart of a heat exchange fin forming method according to an embodiment;

[0043] Figure 8 Schematic flow chart of a heat exchange fin forming method according to an embodiment;

[0044] In the figure:

[0045] 100, heat exchange fin forming device; 110, workbench; 111, forming position; 112, first guide rail; 113, second guide rail; 114, third driving member; 115, first guiding member; 121, first working edge; 122, second working edge; 123, third working edge; 124, fourth working edge; 130, stretching device; 140, first connecting assembly; 141, first guiding groove; 150, second connecting assembly; 151, second guiding groove; 160, first driving assembly; 161, driving motor; 162, transmission; 163, rotating shaft; 164, second guiding member; 165, bearing. Detailed implementation manners

[0046] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the specific implementation manners of the present invention will be given with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.

[0048] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0049] In the present invention, unless otherwise clearly specified and defined, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0051] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0052] On the one hand, the present application provides a heat exchange fin forming device. Please refer to Figure 1 , Figure 1 the heat exchange fin forming device 100 in an embodiment of [reference document], which includes: a workbench 110, a first working edge 121, a second working edge 122, a third working edge 123, and a fourth working edge 124. Among them, the workbench 110 is provided with a forming position 111 for accommodating the heat exchange fin. The first working edge 121, the second working edge 122, the third working edge 123, and the fourth working edge 124 are all disposed on the outer periphery of the forming position 111. Specifically, the heat exchange fin is rectangular, the first working edge 121 and the second working edge 122 are oppositely arranged and are respectively used for being disposed on the opposite sides of the heat exchange fin; the third working edge 123 and the fourth working edge 124 are oppositely arranged and are respectively used for being disposed on the opposite sides of the heat exchange fin. In the embodiment shown in Figure 1 , the lengths of the first working edge 121 and the second working edge 122 are equal and are used for connecting to the two long sides of the heat exchange fin; the lengths of the third working edge 123 and the fourth working edge 124 are equal and the length is less than that of the first working edge or the second working edge, and are used for connecting to the two short sides of the heat exchange fin. Of course, the lengths and positions of the first working edge 121 to the fourth working edge 124 are not limited to those shown in Figure 1 . In other embodiments, the first working edge 121 and the second working edge 122 can also correspondingly connect to the two short sides of the heat exchange fin, and the third working edge 123 and the fourth working edge 124 can also correspondingly connect to the two long sides of the heat exchange fin. Further, in other embodiments, the heat exchange fin can also be in the shape of a rhombus, a trapezoid, etc., and the specific positions of the first working edge 121 to the fourth working edge 124 can also be adaptively adjusted according to the shape of the heat exchange fin. By limiting the heat exchange fin through the first working edge 121 to the fourth working edge 124, on the one hand, it can prevent the heat exchange fin from generating displacement during the forming process, and on the other hand, it can help the heat exchange fin to achieve positioning, ensure the positioning accuracy of the heat exchange fin during the forming process, and thus can improve the yield of the heat exchange fin.

[0053] In some embodiments, the actual lengths of the first working edge 121 to the fourth working edge 124 can also be adjusted according to the actual length of the heat exchange fin to be connected. Please refer to Figure 1 , Figure 1Three lengths of the third working edge 123 are shown, corresponding to three different specifications of the heat exchange fin sizes. In other embodiments, there may also be multiple third working edges 123 with different lengths, or combinations achieved by different lengths of the first working edge 121, the second working edge 122, and the fourth working edge 124.

[0054] Furthermore, the first working edge 121 and the second working edge 122 can move relative to each other, and the third working edge 123 and the fourth working edge 124 can move relative to each other. Specifically, in some embodiments, one of the first working edge 121 and the second working edge 122 can be fixed relative to the workbench, and the other working edge can be movably arranged relative to the workbench, so as to accurately position the heat exchange fin according to the position of the fixed working edge. In other embodiments, both the first working edge 121 and the second working edge 122 can be movably arranged relative to the workbench, so as to adjust the positioning center of the heat exchange fin and adapt to more diverse processing requirements. The same applies to the third working edge 123 and the fourth working edge 124.

[0055] Specifically, the relative movement between the first working edge 121 and the second working edge 122 is along a first path, and the relative movement path between the third working edge 123 and the fourth working edge 124 is along a second path. Taking the Figure 1 heat exchange fin forming device 100 as an example, the first path is along the width direction of the heat exchange fin, the second path is along the length direction of the heat exchange fin, and the first path and the second path are orthogonal to each other. In other embodiments, the first path can also be along the length direction of the heat exchange fin, the second path can also be along the width direction of the heat exchange fin, or the first path and the second path can also be other intersecting directions, so as to limit the degrees of freedom of the heat exchange fin in the plane.

[0056] It should be noted that the heat exchange fin applied in this application is formed by welding at least two sheets of plates after being pressed together before bulging forming. When the heat exchange fin bulges, the medium is filled into the space between the two sheets of plates that is not pressed and welded for bulging. Specifically, the medium includes liquids, gases, etc. By utilizing the energy of the medium, the two sheets of plates of the heat exchange fin can be bulged under static pressure, so as to form a bulging space. Furthermore, the pressed part between the plates includes the outer periphery of the plates, so that the heat exchange fin is in a pillow shape after bulging forming, increasing the surface area of the heat exchange fin. In some embodiments, the pressed part between the plates also includes a plurality of regularly arranged circles, straight bars, curves, etc., so that the heat exchange fin can have a plurality of pillow-shaped protrusions after bulging forming to improve the heat exchange efficiency of the heat exchange fin.

[0057] Furthermore, clamping components for clamping the heat exchange fins are provided on each of the first working edge 121 to the fourth working edge 124, which can fix and support the heat exchange fins during the forming process, so that the heat exchange fins will not generate relative movement relative to the first working edge 121 to the fourth working edge 124 during the forming process, enabling the pressure of the fluid to be more effectively applied to the bulging of the heat exchange fins during bulging, improving the forming efficiency of the heat exchange fins, and at the same time ensuring the external dimensions of the heat exchange fins after bulging forming.

[0058] The above heat exchange fin forming device 100 limits the heat exchange fins through the first working edge 121 to the fourth working edge 124. On the one hand, it can prevent the heat exchange fins from generating displacement during the forming process, and on the other hand, it can help the heat exchange fins achieve positioning, ensuring the positioning accuracy of the heat exchange fins during the forming process, thereby improving the yield of the heat exchange fins; by providing clamping components for abutting against the heat exchange fins on the first working edge 121 to the fourth working edge 124, the heat exchange fins can be fixed and supported during the forming process, so that the heat exchange fins will not generate relative movement relative to the first working edge 121 to the fourth working edge 124 during the forming process, enabling the pressure of the fluid to be more effectively applied to the bulging of the heat exchange fins during bulging, and improving the forming efficiency of the heat exchange fins. The above heat exchange fin forming device 100 does not require the participation of a forming die. After the clamping device abuts against the heat exchange fins, a filling medium is used to bulge and form the heat exchange fins, simplifying the structure of the heat exchange fin forming device 100 and reducing the space occupied by the heat exchange fin forming device 100.

[0059] Please refer to Figure 2 、 Figure 3 , in some embodiments, the heat exchange fin forming device 100 further includes a stretching device 130. The stretching device 130 includes a first connection component 140, a second connection component 150, and a first driving component 160. Among them, the first connection component 140 can be used to be fixedly connected to any one of the first working edge 121 to the fourth working edge 124, so as to achieve an indirect connection with the heat exchange fins. Further, the second connection component 150 is fixedly connected to the workbench 110, and the output end of the first driving component 160 is connected to the first connection component 140, so that the first connection component 140 can move toward the side away from the heat exchange fins, that is, the first connection component 140 can move relative to the second connection component 150, that is, the stretching device 130 enables the heat exchange fins to be stretched. In Figure 2 、 Figure 3In the illustrated embodiment, the second connection component 150 is disposed diagonally below the first connection component 140, that is, the second connection component 150 is disposed on the lower side of the moving direction of the first connection component 140, which can make the structure of the stretching device 130 more compact and improve the space utilization rate. In other embodiments, the second connection component 150 may also be disposed on the extension line of the moving direction of the first connection component 140, and the first driving component 160 may be a linear guide motor, a voice coil motor or other driving members that can directly move the first connection component 140 linearly.

[0060] Further, in some embodiments, the number of the stretching devices 130 is two, which are respectively disposed corresponding to two adjacent working edges among the first working edge 121 to the fourth working edge 124. When the first working edge 121 and the third working edge 123 are fixed, the stretching devices 130 are respectively connected to the second working edge 122 and the fourth working edge 124. In other embodiments, the number of the stretching devices 130 is four, which are respectively disposed corresponding to the first working edge 121 to the fourth working edge 124. Taking the first working edge 121 as an example, in the stretching device 130 corresponding to the first working edge 121, the first connection component 140 is fixedly connected to the first working edge 121, so that when the first working edge 121 clamps the heat exchange fins, it can be indirectly fixedly connected to the heat exchange fins. In other embodiments, the number of the stretching devices 130 may also be five, six, etc., as long as they are distributed on the outer periphery of the heat exchange fins.

[0061] Please refer to Figure 2 , in some embodiments, the driving component 160 includes a driving motor 161 and a transmission 162. The driving motor 161 is used to provide rotational power, and the transmission 162 is used to increase the torque on the one hand and change the transmission direction of the driving motor 161 on the other hand.

[0062] Please refer to Figure 3 , further, in some embodiments, the stretching device 130 further includes a rotating shaft 163. The rotating shaft 163 is connected to the output shaft of the driving component 160, and the rotating shaft 163 is threadedly connected to the first connection component 140. The first driving component 160 drives the rotating shaft 163 to rotate so that the first connection component 140 can move along the length direction of the rotating shaft 163. Specifically, an external thread is provided on the outer wall of the rotating shaft 163, and an internal thread hole matching the external thread is provided on the first connection component 140. The first driving component 160 drives the relative rotation of the external thread and the internal thread hole so that the first connection component 140 and the second connection component 150 move relative to each other.

[0063] In some embodiments, the first driving component 160 is fixedly connected to the second connecting component 150. The principle is as follows: The driving component 160 fixedly connected to the second connecting component 150 applies torque to the rotating shaft 163, so that the first connecting component 140 threadedly connected to the rotating shaft 163 receives a reaction force, driving the first connecting component 140 to move along the length direction of the rotating shaft 163, so that the heat exchange fins connected to the first connecting component 140 can be stretched. Specifically, the rotating shaft 163 and the driving component 160 can be fixedly connected by means of key connection, threaded connection, clamping connection, bonding, etc. In other embodiments, the first driving component 160 is fixedly connected to the first connecting component 140 and movably connected to the second connecting component 150. The principle is as follows: The first driving component 160 drives the rotating shaft 163 to rotate, and the rotating shaft 163 makes the first connecting component 140 and the first driving component 160 move together along the length direction of the rotating shaft 163 through the threaded fit with the first connecting component 140. The second connecting component 150 is mainly used to limit the rotational movement of the first driving component 160 with the rotating shaft 163 as the axis, so as to ensure that the heat exchange fins connected to the first connecting component 140 can be stretched.

[0064] Please refer to Figure 2 , in some embodiments, the first connecting component 140 is provided with a first guiding groove 141, and the workbench 110 is connected with a first guiding member 115. The first guiding member 115 passes through the first guiding groove 141 and can move along the length direction of the first guiding groove 141. Further, the length direction of the first guiding groove 141 is parallel to the stretching direction of the heat exchange fins. Please refer to Figure 6 , specifically, the cross-sectional shape of the first guiding member 115 is "T" shaped, so as to be able to limit the up-and-down movement of the first connecting component 140 in space and prevent the first connecting component 140 from disengaging from the machine table. Further, the first guiding member 115 and the workbench 110 are fixedly connected by bolts.

[0065] Further, the second connecting component 150 is provided with a second guiding groove 151, and the first connecting component 140 is fixedly connected with a second guiding member 164. The second guiding member 164 passes through the second guiding groove 151 and can move along the length direction of the second guiding groove 151. And, the cooperation between the second guiding groove 151 and the second guiding member 164 can play a role in limiting the rotational movement of the first driving component 160 with the rotating shaft 163 as the axis. Please return to refer to Figure 4 , further, a bearing 165 is sleeved at the contact between the outer periphery of the second guiding member 164 and the second guiding groove 151, so as to be able to reduce friction and make it easier to realize the relative movement between the first connecting component 140 and the second connecting component 150.

[0066] In some embodiments, the clamping assembly includes a first clamping plate, a second clamping plate, and a second driving component. The first clamping plate and the second clamping plate are oppositely arranged for clamping the heat exchange plate. Specifically, the first clamping plate and the second clamping plate respectively abut against opposite sides of the heat exchange fins. The second driving component is connected to the first clamping plate or the second clamping plate so that the first clamping plate and the second clamping plate can approach each other to clamp the heat exchange fins. In some embodiments, the second driving component can be a thrust motor or the like, which can push the first clamping plate and the second clamping plate to have a relative movement tendency, so as to clamp the heat exchange fins. In other embodiments, worms can be fixedly connected to the first clamping plate and the second clamping plate, and the output end of the second driving component is connected to a worm, and the heat exchange fins can also be clamped through the cooperation of the worm and the worm gear.

[0067] In some embodiments, the clamping assembly further includes a force-applying lever. One end of the force-applying lever is connected to the second driving component, and the other end is connected to the first clamping plate or the second clamping plate. The force-applying lever is rotatably connected to the workbench 110, thereby forming a lever structure. The first clamping plate and the second clamping plate clamp the heat exchange fins between the two plates. When the second driving member expands and deforms, one end of the force-applying lever moves away from the workbench 110, and the lever principle can be used to make the first clamping plate and the second clamping plate approach each other, so that the heat exchange fins can obtain sufficient clamping force, and the stable connection of the heat exchange fins relative to the workbench 110 can be ensured during the clamping and stretching of the heat exchange fins. In addition to the foregoing embodiments, there are various ways to clamp the heat exchange fins between the first clamping plate, the second clamping plate and the second driving component, all of which are within the protection scope of this application and will not be described one by one here.

[0068] Further, the clamping assembly further includes a limiting block. Specifically, the limiting block is arranged on the workbench 110, and the force-applying lever is rotatably connected to the limiting block. On the one hand, taking the first working edge 121 and the second working edge 122 as an example, by setting the limiting block, when the first working edge 121 moves relative to the second working edge 122, the heat exchange fins first slide into the clamping assembly of the first working edge 121 and then abut against the limiting block in the clamping assembly. As the first working edge 121 continues to move, the limiting block of the clamping assembly of the first working edge 121 then pushes the heat exchange fins into the clamping assembly of the second working edge 122 until the first working edge 121 stops moving after hitting the limiting block of the clamping assembly of the second working edge 122. On the other hand, the limiting block has a certain height, and the force-applying lever is rotatably connected to the limiting block, which can relatively raise the rotation center of the force-applying lever and provide more sufficient movement space for the relative ends of the force-applying lever, thereby helping to improve the clamping effect between the first clamping plate and the second clamping plate.

[0069] In some embodiments, the heat exchange fin forming device 100 further includes a first guide rail 112 and a third driving assembly 160. At least one of the first working edge 121 and the second working edge 122 is slidably connected to the first guide rail 112. The third driving member 114 is connected to the first working edge 121 or the second working edge 122 and is used to drive the relative movement of the first working edge 121 and the second working edge 122. Further, the heat exchange fin forming device 100 further includes a second guide rail 113 and a fourth driving member. At least one of the third working edge 123 and the fourth working edge 124 is slidably connected to the second guide rail 113. The fourth driving member is connected to the third working edge 123 or the fourth working edge 124 and is used to drive the relative movement of the third working edge 123 and the fourth working edge 124. By providing the first guide rail 112 and the second guide rail 113, a definite path can be provided for the movement of the working edges, making the movement of the working edges more orderly and helping to improve the processing efficiency of the heat exchange fins. Specifically, a pneumatic driving member is connected between the first working edge 121 and the second working edge 122. The relative movement of the first working edge 121 and the second working edge 122 can be realized through the expansion and contraction of the pneumatic driving member. The same applies to the third workbench 110 and the fourth workbench 110, so that the positioning and adjustment of the heat exchange fins can be more convenient.

[0070] On the other hand, the present application provides a method for forming heat exchange fins. Please refer to Figure 1 , Figure 1 the heat exchange fin forming method of an embodiment shown in

[0071] S1. The first working edge and the second working edge move towards each other, and the third working edge and the fourth working edge move towards each other to limit the heat exchange fin.

[0072] Specifically, in some embodiments, one of the first working edge and the second working edge may be fixedly arranged relative to the ground, and the other working edge may be slidably arranged relative to the ground; one of the third working edge and the fourth working edge may be fixedly arranged relative to the ground, and the other working edge may be slidably arranged relative to the ground, so that the accurate positioning of the heat exchange fin can be realized according to the position of the fixed working edge.

[0073] By limiting the heat exchange fin through the first working edge to the fourth working edge, on the one hand, the displacement of the heat exchange fin during the forming process can be prevented, and on the other hand, the positioning of the heat exchange fin can be helped to ensure the positioning accuracy of the heat exchange fin during the forming process, thereby improving the yield of the heat exchange fin.

[0074] S2. The first working edge, the second working edge, the third working edge and the fourth working edge respectively clamp the outer periphery of the heat exchange fin.

[0075] Specifically, by clamping the outer periphery of the heat exchange fin through the first working edge to the fourth working edge, it can be ensured that the edge of the heat exchange fin will not generate relative movement relative to the first working edge to the fourth working edge during the forming process, enabling the pressure of the fluid to be more effectively applied to the bulging of the heat exchange fin in subsequent steps and improving the forming efficiency of the heat exchange fin. It should be noted that there is no restriction on the clamping sequence of the first working edge to the fourth working edge here.

[0076] S3. Fill the heat exchange fin with a medium, and the heat exchange fin bulges.

[0077] Specifically, the medium includes liquids, gases, etc. By utilizing the energy of the medium, the two plates of the heat exchange fin can be bulged under static pressure, thereby forming a bulging space. Preferably, the fluid is water. Since water has the characteristics of low use and acquisition cost and high pressure, it is suitable for the bulging of the heat exchange fin. It should be noted that the heat exchange fin used in this application is formed by pressing at least two plates together, and the pressed part between the plates includes the outer periphery of the plates. Thus, the heat exchange fin is in a pillow shape after bulging and forming, increasing the surface area of the heat exchange fin. In some embodiments, the pressed part between the plates further includes a plurality of regularly arranged circles, straight bars, curves, etc., so that the heat exchange fin can have a plurality of pillow-shaped protrusions after bulging and forming to improve the heat exchange efficiency of the heat exchange fin.

[0078] S4. Stop filling the heat exchange fin with the medium, and the heat exchange fin is formed.

[0079] In the prior art, in order to ensure that the upper and lower plates of the heat exchange fin can have regular shapes, when using a mold to form the heat exchange fin, it is necessary to align the upper mold and the lower mold, which takes a certain amount of process time. Moreover, if there is a tolerance between the upper and lower molds, it will affect the yield of the heat exchange fin. Using the above heat exchange fin forming method to form the heat exchange fin, there is no need for the participation of a forming mold. By limiting, clamping, and bulging the heat exchange fin, the forming of the heat exchange fin can be achieved, simplifying the forming process of the heat exchange fin, improving the manufacturing efficiency of the heat exchange fin, and at the same time improving the yield of the heat exchange fin.

[0080] In some embodiments, after step S2, the following steps are further included:

[0081] S5. The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to stretch the heat exchange fin.

[0082] Specifically, after clamping the heat exchange fin by the first working edge to the fourth working edge, stretching the heat exchange fin helps to flatten the heat exchange fin before bulging and forming. Thus, during the bulging process, the fluid can flow evenly in the heat exchange fin, and at the same time, it can improve problems such as uneven stress distribution that occur after the heat exchange plate is processed, thereby helping the heat exchange fin to be formed more evenly and quickly.

[0083] In some embodiments, step S5 is also included in step S3.

[0084] Specifically, when the heat exchange fin is bulged and formed by filling with fluid, the center of the heat exchange fin will sink due to its own gravity or the gravity existing after combining with the fluid, which affects the aesthetics of the heat exchange fin after forming. By stretching the heat exchange fin during the bulging process of the heat exchange fin, it helps to prevent the heat exchange fin from being bent under pressure, thereby ensuring the forming effect of the heat exchange fin and keeping the overall flatness and aesthetics of the heat exchange fin.

[0085] In some embodiments, after step S3, the following steps are further included:

[0086] S3-1. Detect the bulging height of the heat exchange fin.

[0087] Specifically, the bulging height of the heat exchange fin can be detected by detection methods such as infrared measurement, manual measurement, and laser measurement. By detecting the bulging height of the heat exchange fin, it is possible to reasonably judge whether further bulging is still required, thereby preventing phenomena such as insufficient bulging of the heat exchange fin affecting the heat exchange effect and over-bulging causing the heat exchange fin to rupture.

[0088] S3-2. If the height of the heat exchange fin does not meet the standard, continue to bulge.

[0089] Specifically, if the height of the heat exchange fin does not reach the pre-set height standard, in order to prevent insufficient bulging of the heat exchange fin, return to step S3 to continue bulging.

[0090] S3-3. If the height of the heat exchange fin meets the standard, stop bulging.

[0091] Specifically, if the height of the heat exchange fin reaches the pre-set height standard, in order to prevent over-bulging of the heat exchange fin, stop bulging and proceed to the next step.

[0092] In some embodiments, before step S1, the following steps are further included:

[0093] S0-1. Check whether the heat exchange fin is airtight.

[0094] Specifically, during the manufacturing process of the heat exchange fins, problems such as abnormal welding or incorrect raw material thickness may occur, resulting in a certain percentage of qualified products for the heat exchange fins. By checking whether the heat exchange fins are airtight, it can be ensured that all the heat exchange fins used in the subsequent bulging process of the heat exchange fins are finished products with good airtight performance, so that the heat exchange fins can be subjected to sufficient and stable pressure during the bulging process. In some embodiments, the airtightness detection can be carried out by bulging the heat exchange fins within a set maximum pressure range. If the bulging height of the heat exchange fins within the set maximum pressure range fails to meet the standard, it indicates that there is a problem with the internal space of the heat exchange fins not being airtight, and the heat exchange fins on the workbench need to be replaced until finished products with good airtight performance are obtained.

[0095] In some embodiments, after the step "forming the heat exchange fins", the following steps are further included:

[0096] S6-1. The first working edge, the second working edge, the third working edge, and the fourth working edge respectively release the outer periphery of the heat exchange fin.

[0097] S6-2. The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to release the limitation on the heat exchange fin.

[0098] Specifically, by the first working edge to the fourth working edge respectively releasing the heat exchange fin, the limitation on the degrees of freedom of the heat exchange fin is released, so that the heat exchange fin can be removed from the forming position. It should be noted that the release order of the first working edge to the fourth working edge is not limited here.

[0099] In some embodiments, before step S1, the following steps are further included:

[0100] S0-2. Lift the heat exchange fin to move the heat exchange fin to the forming position.

[0101] After step S6-2, the following steps are further included:

[0102] S7. Lift the heat exchange fin to remove the heat exchange fin from the forming position.

[0103] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0104] The above-described embodiments merely represent several implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A heat exchange fin forming device, characterized in that, the heat exchange fin forming device comprises: a workbench provided with a forming position for accommodating the heat exchange fin; a first working edge, a second working edge, a third working edge and a fourth working edge arranged on the outer periphery of the forming position, clamping components for clamping the heat exchange fin are arranged on each of the first working edge to the fourth working edge, at least one of the first working edge and the second working edge can move relatively, and at least one of the third working edge and the fourth working edge can move relatively to limit the heat exchange fin and place it in the clamping components; the heat exchange fin forming device further comprises a stretching device, the stretching device comprises a first connecting component, a second connecting component and a first driving component, the first connecting component is connected to the clamping component, the workbench, the second connecting component and the first driving component are sequentially connected to each other, and the first driving component is connected to the first connecting component to enable the first connecting component to move relative to the second connecting component; wherein, the first connecting component is used for fixedly connecting to any one of the first working edge, the second working edge, the third working edge and the fourth working edge, so as to realize an indirect connection with the heat exchange fin; the second connecting component is fixedly connected to the workbench, and the output end of the first driving component is connected to the first connecting component; the first driving component is fixedly connected to the second connecting component.

2. The heat exchange fin forming device according to claim 1, characterized in that, the stretching device further comprises a rotating shaft, the rotating shaft is connected to the driving component, the rotating shaft is in threaded connection with the first connecting component, and the first driving component drives the rotating shaft to rotate so that the first connecting component can move along the length direction of the rotating shaft.

3. The heat exchange fin forming device according to claim 1, characterized in that, the first connecting component is provided with a first guiding groove, the workbench is connected with a first guiding member, and the first guiding member passes through the first guiding groove and can move along the length direction of the first guiding groove; and / or, the second connecting component is provided with a second guiding groove, the first connecting component is connected with a second guiding member, and the second guiding member passes through the second guiding groove and can move along the length direction of the second guiding groove.

4. The heat exchange fin forming device according to claim 1, characterized in that, the clamping component comprises a first clamping plate, a second clamping plate and a second driving component, the first clamping plate and the second clamping plate are arranged oppositely and used for abutting against the heat exchange plate, and the second driving component is connected to the first clamping plate and / or the second clamping plate to enable the first clamping plate and the second clamping plate to approach each other for clamping the heat exchange fin.

5. The heat exchange fin forming device according to claim 1, characterized in that, The heat exchange fin forming device further includes a first guide rail and a third driving assembly. At least one of the first working edge and the second working edge is slidably connected to the first guide rail, and the third driving assembly is connected to the first working edge and / or the second working edge for driving the relative movement of the first working edge and the second working edge; and / or, The heat exchange fin forming device further includes a second guide rail and a fourth driving member. At least one of the third working edge and the fourth working edge is slidably connected to the second guide rail, and the fourth driving member is connected to the third working edge and / or the fourth working edge for driving the relative movement of the third working edge and the fourth working edge.

6. A heat exchange fin forming method, using the heat exchange fin forming device according to any one of claims 1-5, characterized in that, it includes the following steps: The first working edge and the second working edge move towards each other, and the third working edge and the fourth working edge move towards each other to limit the heat exchange fin, and place the heat exchange fin in the clamping assembly; The clamping assemblies on the first working edge, the second working edge, the third working edge and the fourth working edge respectively clamp the outer periphery of the heat exchange fin; The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to stretch the heat exchange fin; Fill the heat exchange fin with a medium, and the heat exchange fin bulges; Stop filling the heat exchange fin with the medium, and the heat exchange fin is formed.

7. According to the heat exchange fin forming method described in claim 6, characterized in that, In the step of "filling the heat exchange fin with a medium, and the heat exchange fin bulges", the following steps are further included: The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to stretch the heat exchange fin.

8. According to the heat exchange fin forming method described in claim 6, characterized in that, After the step of "filling the heat exchange fin with a fluid to make the heat exchange fin bulge", the following steps are further included: Detect the bulging height of the heat exchange fin; If the height of the heat exchange fin does not meet the standard, continue to bulge; If the height of the heat exchange fin meets the standard, stop bulging.

9. According to the heat exchange fin forming method described in claim 6, characterized in that, After the step of "the heat exchange fin is formed", the following steps are further included: The clamping assemblies on the first working edge, the second working edge, the third working edge and the fourth working edge respectively release the outer periphery of the heat exchange fin; The first working edge and the second working edge move away from each other, and the third working edge and the fourth working edge move away from each other to release the limitation on the heat exchange fin.

10. According to the heat exchange fin forming method described in any one of claims 6-9, characterized in that, Before the step of "the first working edge and the second working edge move towards each other, and the third working edge and the fourth working edge move towards each other to limit the heat exchange fin", the following steps are further included: Lift the heat exchange fin to move the heat exchange fin to the forming position; and / or, After the step of "stop filling the heat exchange fin with the medium, and the heat exchange fin is formed", the following steps are further included: Lift the heat exchange fin so that the heat exchange fin is removed from the forming position.

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