Automatic bending and forming device for new energy vehicle heat dissipation port organ pipe

Abstract

The present application relates to harmonica tube production technical field, especially to a kind of new energy automobile heat dissipation harmonica tube automatic bending forming device. Including: main body, the bending module is arranged on the main body, two symmetrical distribution slide rails are installed on the main body, two the slide rails are jointly slidably connected with main mounting seat at the position away from the bending module, the power module is arranged on the main mounting seat, the outer support is fixedly connected to the main mounting seat, the outer support is provided with inner support, the outer support is provided with equidistantly distributed multiple outer support strips and multiple inner support strips. The present application relies on two outer support strips and inner support strip in each group to provide inner support for the single flow passage of harmonica tube, after bending, keep two outer support strips stationary, and pull out inner support strip, so that the overall thickness of two outer support strips and inner support strip is reduced, so as to reduce the extrusion force between outer support strip and harmonica tube, facilitate pulling out outer support strip and inner support strip, and reduce the probability of scratching harmonica tube.

Description

Technical Field

[0001] This invention relates to the field of harmonica tube manufacturing technology, and in particular to an automatic bending and forming device for heat dissipation harmonica tubes used in new energy vehicles. Background Technology

[0002] Harmonica tubes are porous aluminum flat tubes primarily used for heat exchange in industrial fields such as automotive radiators and battery cooling systems, achieving efficient heat dissipation through a multi-channel design. In the cooling systems of new energy vehicles, these tubes often need to be bent into specific shapes to meet installation requirements. However, due to the thin tube walls and lack of internal support during bending, dents and wrinkles are easily formed. To address this issue, a pre-inserted core strip is commonly used to provide internal support to the tube wall and prevent deformation. However, after bending, the core strip also deforms and adheres tightly to the inner wall of the tube, resulting in significant compressive force at the bend, making it difficult to remove and easily causing scratches on the inner wall of the tube. If the core strip breaks and remains inside the tube during removal, additional measures are required to extract the broken core strip, increasing production steps and leading to low bending efficiency. Summary of the Invention

[0003] This invention provides an automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles, which overcomes the disadvantages of low bending efficiency and easy scratching of the inner wall of the tube during the bending process of the harmonica tube due to the difficulty in removing the core strip.

[0004] The technical solution is: an automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles, comprising:

[0005] The main body is equipped with a bending module and two symmetrically distributed slide rails. The two slide rails, located away from the bending module, are slidably connected to a main mounting base. The main mounting base is equipped with a power module for driving the main body to slide along the slide rails. An outer bracket is fixedly connected to the main mounting base, and an inner bracket is provided on the outer bracket. A first push rod is mounted on the outer bracket, and the telescopic end of the first push rod is fixedly connected to the inner bracket. Multiple sets of outer support bars and multiple inner support bars are equidistantly distributed within the outer bracket. Each set of outer support bars consists of two symmetrically distributed bars, and the number of sets of outer support bars is equal to the number of inner support bars. Two outer support bars and an adjacent inner support bar in the same set form a group and jointly extend into the mouthpiece tube to provide support. An external fixing component is provided on the outer bracket to fix all the outer support bars, and an internal fixing component is provided on the inner bracket to fix all the inner support bars.

[0006] Furthermore, the external fixation assembly includes:

[0007] A limiting member is slidably connected to the side of the outer bracket near the inner bracket via a connecting rod. The limiting member is slidably connected to the inner bracket via the connecting rod. The outer bracket is equipped with a second push rod, the telescopic end of which is fixedly connected to the limiting member. A third through groove is provided in the middle of the limiting member for the inner support bar to pass through. The limiting member is provided with two symmetrically distributed clearance through grooves for the outer support bar to pass through. A first through groove is provided in the middle of the outer bracket. The limiting member is provided with two symmetrically distributed extrusion slopes, which are located in the first through groove and together with the first through groove extrude and limit the outer support bar.

[0008] Furthermore, the internal fixation assembly includes:

[0009] A limiting plate is slidably connected to the inner support via a connecting rod. A fourth through groove is provided in the middle of the limiting plate for the inner support bar to pass through. A third push rod is installed on the inner support, and the telescopic end of the third push rod is fixedly connected to the limiting plate. Two symmetrically distributed clamping plates are slidably connected to the side of the limiting plate near the inner support. A second through groove is provided in the middle of the inner support, and the clamping plates slide along the second through groove to squeeze and limit the inner support bar.

[0010] Furthermore, in the direction from the outer support towards the bending module, the thickness of the outer support gradually increases, while the thickness of the inner support gradually decreases.

[0011] Furthermore, the two slide rails are slidably connected to a secondary mounting base near the bending module. The secondary mounting base is equipped with a power module for driving it to slide along the slide rails. A support frame is fixedly connected to the secondary mounting base. A sliding plate is slidably connected to the support frame via a connecting rod. A fourth push rod is installed on the support frame. The telescopic end of the fourth push rod is fixedly connected to the sliding plate. Two symmetrically distributed support plates are slidably connected to the side of the sliding plate near the support frame. Equally spaced limiting protrusions are provided on the opposing sides of the two support plates. The limiting protrusions are used to limit the position of adjacent outer support bars in the vertical direction. A fifth through groove is provided in the middle of the support frame. The fifth through groove is used to guide the two support plates to approach each other and squeeze and limit the outer support bar and the inner support bar.

[0012] Furthermore, the ends of the two outer supports in the same group that are furthest from the outer bracket are jointly fixed with a connecting piece.

[0013] Furthermore, the connecting piece is provided with two symmetrically distributed guide bevels to facilitate the connecting piece extending into the instrument tube.

[0014] Furthermore, the connecting piece is made of elastic material, and a magnet is fixed to one end of the outer support bar away from the outer bracket. The magnetic fields of the two coaxial magnets on the two outer support bars in the same group are in the same direction, and the magnetic attraction of the two magnets is greater than the elastic force that needs to be overcome to bend the connecting piece, which is used to reduce the distance between the ends of the two outer support bars in the same group.

[0015] Furthermore, oil guide grooves are provided on the sides of the inner support bar that contact the two outer support bars.

[0016] Furthermore, grooves are provided on the opposing sides of the two clamping plates, and sponge strips are embedded in the grooves of the clamping plates, with the sponge strips contacting the inner support strips.

[0017] The advantages and positive effects of this invention compared with the prior art are as follows: This invention relies on the two outer support bars and the inner support bar in each group to provide internal support for the single flow channel of the harmonica tube. After bending, the two outer support bars are kept stationary and the inner support bar is pulled out, so that the overall thickness of the two outer support bars and the inner support bar is reduced. This reduces the squeezing force between the outer support bars and the harmonica tube, making it easier to pull out the outer support bars and the inner support bar, and reducing the probability of scratching the harmonica tube.

[0018] By varying the thickness of the outer and inner support bars, not only is the relative movement distance between the inner and outer support bars reduced during the extraction process, thus improving extraction efficiency, but the maximum thickness of the two outer support bars can also be changed by controlling their relative positions, thereby increasing the adaptability to harmonica tube specifications.

[0019] The limiting protrusions provide a limit and support for the middle section of the outer support strips, thus maintaining the orderly arrangement of all outer support strips in the vertical direction, improving the convenience of inserting the outer support strips into the harmonica tube, reducing operation steps, and improving bending efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a three-dimensional structural diagram of the outer bracket and support frame of the present invention;

[0022] Figure 3 This is a three-dimensional structural diagram of the outer and inner supports of the present invention;

[0023] Figure 4 This is a three-dimensional structural cross-sectional view of the inner support and limiting member of the present invention;

[0024] Figure 5 This is an exploded view of the outer support, inner support, and limiting plate of the present invention;

[0025] Figure 6This is a three-dimensional structural diagram of the support frame and sliding plate of the present invention;

[0026] Figure 7 This is a three-dimensional structural cross-sectional view of the support frame of the present invention;

[0027] Figure 8 This is a three-dimensional structural diagram of the outer support bar and connecting piece of the present invention;

[0028] Figure 9 This is a three-dimensional structural diagram of the outer support bar and the inner support bar of the present invention.

[0029] Component names and serial numbers in the diagram: 1-Main body, 2-Bending module, 3-Slide rail, 4-Main mounting base, 5-Outer bracket, 501-First through groove, 6-Inner bracket, 601-Second through groove, 7-First push rod, 8-Outer support bar, 9-Inner support bar, 901-Oil guide groove, 10-Limiting component, 101-Third through groove, 102-Leaving through groove, 103-Extrusion slope, 11-Second push rod, 12-Limiting plate, 121-Fourth through groove, 13-Third push rod, 14-Clamping plate, 15-Secondary mounting base, 16-Support frame, 161-Fifth through groove, 17-Sliding plate, 18-Fourth push rod, 19-Support plate, 191-Limiting protrusion, 20-Connecting piece, 201-Guiding slope, 21-Magnet, 22-Sponge strip. Detailed Implementation

[0030] In the description of this invention, it should be understood that the terms "upper," "lower," "inner," and "outer," etc., used in this invention to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0031] Example 1

[0032] This embodiment provides an automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles, which solves the problem that the core strip is difficult to pull out during the bending process of the harmonica tube, resulting in low bending efficiency and easy scratches on the inner wall of the tube.

[0033] See Figures 1 to 4An automatic bending and forming device for a harmonica tube used in a new energy vehicle includes: a main body 1, on which a bending module 2 is provided and two symmetrically distributed slide rails 3 are installed. The bending module 2 is an existing structure used to bend the harmonica tube at a specific bending radius and angle, which will not be described in detail here; the left side of the two slide rails 3 is slidably connected to a main mounting base 4, on which a power module is provided to drive it to slide along the slide rails 3. This power module is an existing structure and can use a servo motor as power to drive the gear on the main mounting base 4 to move along the rack on the slide rail 3, which will not be described in detail here; an outer bracket 5 is fixedly connected to the main mounting base 4, and an inner bracket 6 is provided on the left side of the outer bracket 5. 5 is equipped with a first push rod 7, the telescopic end of the first push rod 7 is fixedly connected to the inner bracket 6. The first push rod 7 can be two symmetrically distributed vertically, so that the inner bracket 6 is subjected to uniform force in the vertical direction. The outer bracket 5 is provided with multiple sets of outer support bars 8 and multiple inner support bars 9 evenly distributed. In each set of outer support bars 8, there are two symmetrically distributed front and back. The number of sets of outer support bars 8 and the number of inner support bars 9 are consistent with the number of internal channels of the harmonica tube. Two outer support bars 8 and adjacent inner support bars 9 in the same set form a group and are used together to provide support for the flow channel of the harmonica tube. The outer bracket 5 is provided with an external fixing component for fixing all the outer support bars 8, and the inner bracket 6 is provided with an internal fixing component for fixing all the inner support bars 9.

[0034] The above setup enables the harmonica tube to be internally supported by two outer support bars 8 and an inner support bar 9. After bending, the two outer support bars 8 remain stationary while the inner support bar 9 is pulled out, reducing the overall thickness of the two outer support bars 8 and the inner support bar 9. This reduces the compressive force between the outer support bars 8 and the harmonica tube, making it easier to pull out the outer support bars 8 and the inner support bar 9, and reducing the probability of scratching the harmonica tube. During the process of pulling out the inner support bar 9, the positions of the two outer support bars 8 are kept fixed, and the structural strength of the two outer support bars 8 is used to withstand the complex stress caused by the pulling out of the inner support bar 9, thereby reducing the probability of the harmonica tube deforming due to the complex stress during the pulling out.

[0035] See Figures 3 to 5The external fixing assembly includes: a limiting member 10, which is slidably connected to the left side of the outer bracket 5 via a connecting rod; the limiting member 10 is slidably connected to the inner bracket 6 via a connecting rod; the outer bracket 5 is equipped with a second push rod 11, the telescopic end of which is fixedly connected to the limiting member 10; there can be two second push rods 11 to ensure that the limiting member 10 is subjected to uniform force in the vertical direction; a third through groove 101 is provided in the middle of the limiting member 10 for the inner support bar 9 to pass through; the limiting member 10 is provided with... Two symmetrically distributed clearance slots 102 are provided for the outer support bar 8 to pass through. A first through slot 501 is provided in the middle of the outer support 5. The cross-section of the first through slot 501 is an isosceles trapezoid, and the distance between the front and rear sides of the first through slot 501 gradually decreases from left to right. The limiting member 10 is provided with two symmetrically distributed extrusion inclined surfaces 103. The extrusion inclined surfaces 103 are located in the first through slot 501 and together with the first through slot 501, they extrude and limit the outer support bar 8.

[0036] See Figures 3 to 5 The internal fixing assembly includes: a limiting plate 12, which is slidably connected to the left side of the inner bracket 6 via a connecting rod; a fourth through groove 121 is provided in the middle of the limiting plate 12 for the inner support bar 9 to pass through; a third push rod 13 is installed on the inner bracket 6, and the telescopic end of the third push rod 13 is fixedly connected to the limiting plate 12; there can be two third push rods 13 to ensure that the limiting plate 12 is subjected to uniform force in the vertical direction; two clamping plates 14 are slidably connected to the right side of the limiting plate 12, and the thickness of the clamping plates 14 gradually decreases from left to right; a second through groove 601 is provided in the middle of the inner bracket 6, the cross-section of the second through groove 601 is an isosceles trapezoid, and the distance between the front and rear sides of the second through groove 601 gradually decreases from left to right; the clamping plates 14 slide along the second through groove 601 and are used to squeeze and limit the inner support bar 9.

[0037] See Figure 4 , Figure 6 and Figure 8 From left to right, the thickness of the outer support bar 8 gradually increases, while the thickness of the inner support bar 9 gradually decreases. The cross-section of the inner support bar 9 is an isosceles trapezoid, while the cross-section of the outer support bar 8 is a right trapezoid when not subjected to external force. The inclination angle of the front side of the inner support bar 9 is consistent with the inclination angle of the rear side of its adjacent front outer support bar 8, and the same applies to the rear side of the inner support bar 9. This ensures that when the opposing sides of the two outer support bars 8 are in contact with the front and rear sides of the adjacent inner support bar 9, the two opposing sides of the two outer support bars 8 can be parallel. By setting variations in the thickness of the outer support bar 8 and the inner support bar 9, not only is the distance of relative movement between the inner support bar 9 and the outer support bar 8 reduced during the extraction process, thus improving extraction efficiency, but also, by controlling the relative position of the inner support bar 9 and the outer support bar 8, the overall maximum thickness of the two outer support bars 8 and the adjacent inner support bar 9 can be changed, thereby increasing the adaptability to harmonica tube specifications.

[0038] Harmonica tube bending process: Fix the harmonica tube on the bending module 2, then insert the outer support strip 8 and the adjacent inner support strip 9 one by one into the corresponding flow channel of the harmonica tube, and control the main mounting seat 4 to move to the right. The main mounting seat 4 drives the outer support strip 8 and the inner support strip 9 to move to the right together, so that the outer support strip 8 and the adjacent inner support strip 9 move into the flow channel of the harmonica tube until the right end of the outer support strip 8 and the inner support strip 9 passes the bending position of the harmonica tube. Then stop the main mounting seat 4, and start the bending module 2 to bend the harmonica tube.

[0039] After bending, the first push rod 7 is activated. The telescopic end of the first push rod 7 extends and pushes the inner bracket 6 to the left. The inner bracket 6 drives all the inner support bars 9 to the left through the clamping plate 14. During this process, the outer bracket 5 keeps all the outer support bars 8 stationary through the limiting member 10. This reduces the overall thickness of the two outer support bars 8 and the adjacent inner support bars 9, thereby reducing the squeezing force between the outer support bars 8 and the harmonica tube, making it easier to pull out the outer support bars 8 and the inner support bars 9. The power module on the main mounting base 4 is activated, causing the main mounting base 4 to move to the left. The main mounting base 4 drives the outer support bars 8 and the inner support bars 9 to move to the left until the outer support bars 8 and the inner support bars 9 lose contact with the bending position of the harmonica tube. At this time, the bending position of the harmonica tube is changed, and the outer support bars 8 and the inner support bars 9 are moved to the right again and past the bending position of the harmonica tube.

[0040] After the outer support bar 8 and the inner support bar 9 pass the bending position of the harmonica tube again, stop moving the main mounting base 4 and control the telescopic end of the first push rod 7 to retract, so that the inner support bar 9 moves to the right relative to the outer support bar 8, increasing the overall thickness of the outer support bar 8 and the inner support bar 9, until both the front and rear sides of the two outer support bars 8 in the same group are in contact with the flow channel sidewall of the harmonica tube. Then stop the first push rod 7 and continue to bend the harmonica tube. After the harmonica tube is bent, repeat the above steps of extending the telescopic end of the first push rod 7 and moving the main mounting base 4 to the left until the main mounting base 4 is reset. Then control the telescopic end of the first push rod 7 to retract and reset, so that the relative positions of the outer support bar 8 and the inner support bar 9 are reset. This completes the bending operation of a single harmonica tube.

[0041] Example 2

[0042] This embodiment is a further optimization based on embodiment 1, to improve the ease of inserting the outer support bar 8 and the inner support bar 9 into the harmonica tube.

[0043] See Figure 1 , Figure 2 , Figure 6 and Figure 7The right sides of the two slide rails 3 are slidably connected to a secondary mounting base 15. The secondary mounting base 15 is equipped with a power module for driving it to slide along the slide rails 3. This power module is an existing structure and can use a servo motor as power to drive the gear on the main mounting base 4 to move along the rack on the slide rail 3. Further details are omitted here. A support frame 16 is fixedly connected to the upper side of the secondary mounting base 15. A sliding plate 17 is slidably connected to the left side of the support frame 16 via a connecting rod. A fourth push rod 18 is mounted on the support frame 16. The telescopic end of the fourth push rod 18 is fixedly connected to the sliding plate 17. The fourth push rod 18 can... The two slide plates 17 are symmetrically distributed vertically to ensure uniform force distribution in the vertical direction. Two support plates 19 are slidably connected to the right side of the slide plate 17, and two support plates 19 are symmetrically distributed front and back. The opposing sides of the two support plates 19 are provided with equidistant limiting protrusions 191, which are used to limit the position of adjacent outer support bars 8 in the vertical direction. A fifth through groove 161 is provided in the middle of the support frame 16. The cross-section of the fifth through groove 161 is an isosceles trapezoid. The fifth through groove 161 is used to guide the two support plates 19 to approach each other and squeeze and limit the outer support bar 8 and inner support bar 9.

[0044] The above setup enables the limiting protrusion 191 to provide a limit for the outer support bar 8 and support the middle section of the outer support bar 8, thus maintaining the orderly arrangement of all outer support bars 8 in the vertical direction, improving the convenience of inserting the outer support bar 8 into the harmonica tube, reducing operation steps, and improving bending efficiency.

[0045] The process of fixing the outer support bar 8 and the adjacent inner support bar 9 using the support frame 16 and support plate 19 is as follows: by retracting the telescopic end of the fourth push rod 18, the sliding plate 17 drives the two support plates 19 to move to the right. Under the guidance of the fifth through groove 161, the two support plates 19 move closer to each other and squeeze all the outer support bars 8 and inner support bars 9, locking the position of the outer support bars 8 and the adjacent inner support bars 9; otherwise, the telescopic end of the fourth push rod 18 extends to unlock.

[0046] If the suspended section of the outer support bar 8 and the inner support bar 9 between the harmonica tube and the outer bracket 5 is too long, during the bending process of the harmonica tube, the outer support bar 8 and the inner support bar 9 will be continuously subjected to compressive force at the bending point of the harmonica tube. This may cause the outer support bar 8 and the inner support bar 9 in the suspended section to misalign with each other, resulting in a continuous decrease in the overall thickness of the outer support bar 8 and the inner support bar 9, which may not be able to fully support the harmonica tube. To solve the above problem, in the initial state shown in the attached figure, the outer support bar 8 and the adjacent inner support bar 9 are fixed by the support frame 16 and the support plate 19. Then, the power modules on the main mounting base 4 and the auxiliary mounting base 15 are started at the same time to drive the outer support bar 8 and the adjacent inner support bar 9 to move to the right together. During this process, since the length of the outer support bar 8 and the adjacent inner support bar 9 on the right side of the support frame 16 is small, the right ends of all the outer support bars 8 and all the inner support bars 9 can maintain an orderly vertical state, which makes it easy to insert the right ends of all the outer support bars 8 and all the inner support bars 9 into the corresponding flow channel of the harmonica tube at the same time.

[0047] After the right ends of all the outer support bars 8 and all the inner support bars 9 are inserted into the harmonica tube, the right side of the support frame 16 contacts the left side of the harmonica tube. At this time, stop moving the auxiliary mounting seat 15 and control the support frame 16 and support plate 19 to release the fixation of the outer support bars 8 and adjacent inner support bars 9. Then control the main mounting seat 4 to continue to move to the right. The main mounting seat 4 drives the outer support bars 8 and inner support bars 9 to move to the right and continue to be inserted into the harmonica tube until the right ends of the outer support bars 8 and inner support bars 9 move to the right side of the harmonica tube where it is to be bent. Then stop moving the main mounting seat 4.

[0048] After the main mounting base 4 stops moving, the outer support bar 8 and the inner support bar 9 are fixed again using the support frame 16 and the support plate 19. This fixes the suspended sections of the outer support bar 8 and the inner support bar 9, preventing deformation of the suspended sections of the outer support bar 8 and the inner support bar 9 during the bending process of the harmonica tube, and maintaining the stability of the outer support bar 8 and the inner support bar 9.

[0049] Example 3

[0050] This embodiment is a further optimization based on embodiment 2, to improve the ease of inserting the outer support bar 8 and the inner support bar 9 into the harmonica tube.

[0051] See Figure 8 The right ends of the two outer support bars 8 in the same group are fixedly connected to a connecting piece 20; the connecting piece 20 is provided with two symmetrically distributed guide slopes 201 to facilitate the connecting piece 20 to extend into the instrument tube.

[0052] The above setup enables the connecting piece 20 to gather the ends of the two outer support bars 8 together, and the vertical position of the connecting piece 20 is adjusted by the contact between the guide slope 201 and the edge of the internal flow channel of the harmonica tube, so that the outer support bar 8 can be inserted into the harmonica tube.

[0053] Example 4

[0054] This embodiment is a further optimization based on embodiment 3, in order to improve the service life of the connecting piece 20.

[0055] During the bending process of the harmonica tube, the two outer support bars 8 on the inner and outer sides move along different paths, causing the two outer support bars 8 in the same group to become misaligned. In this case, the two outer support bars 8 in the same group will cause the adjacent connecting piece 20 to deform. If the connecting piece 20 is made of non-elastic material, it will undergo plastic deformation with each deformation, resulting in rapid accumulation of damage and a small number of deformations.

[0056] See Figure 8 and Figure 9The connecting piece 20 is made of elastic material. A magnet 21 is fixed to the right end of the outer support 8. The magnetic fields of the two coaxial magnets 21 on the two outer support 8 in the same group are in the same direction, so that the coaxial magnets 21 on the two outer support 8 in the same group attract each other. The magnetic attraction force of the two magnets 21 is greater than the elastic force that needs to be overcome to bend the connecting piece 20, which is used to reduce the distance between the ends of the two outer support 8 in the same group.

[0057] The above settings enable the connecting piece 20 to be made of an elastic material, so that each deformation of the connecting piece 20 is an elastic deformation, which is less likely to accumulate damage and thus extends the service life of the connecting piece 20.

[0058] Example 5

[0059] This embodiment is a further optimization based on embodiment 4, to improve the ease of removing the inner support bar 9.

[0060] See Figure 4 , Figure 5 and Figure 9 The inner support bar 9 is provided with oil guide grooves 901 on the side where it contacts the two outer support bars 8. The lubricating oil flows in the oil guide grooves 901 by means of capillary action. During the flow of the lubricating oil, the contact surface between the outer support bar 8 and the adjacent inner support bar 9 is lubricated, thereby reducing the friction between the outer support bar 8 and the inner support bar 9 and making it easier to pull out the inner support bar 9. The two clamping plates 14 are provided with grooves on their opposite sides. The grooves of the clamping plates 14 are embedded with sponge strips 22, which contact all the inner support bars 9. The sponge strips 22 are used to transport the lubricating oil to all the oil guide grooves 901, improving the convenience of filling the oil guide grooves 901 with lubricating oil.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles, comprising: The main body (1) is provided with a bending module (2). The main body (1) is characterized by having two symmetrically distributed slide rails (3) mounted on it. The two slide rails (3) are slidably connected to a main mounting base (4) at a position away from the bending module (2). The main mounting base (4) is provided with a power module for driving it to slide along the slide rails (3). An outer bracket (5) is fixedly connected to the main mounting base (4). An inner bracket (6) is provided on the outer bracket (5). A first push rod (7) is mounted on the outer bracket (5). The telescopic end of the first push rod (7) is connected to the inner bracket. (6) Fixed connection, the outer bracket (5) is provided with multiple sets of outer support bars (8) and multiple inner support bars (9) distributed at equal intervals. Each set of outer support bars (8) consists of two symmetrically distributed ones, and the number of sets of outer support bars (8) is equal to the number of inner support bars (9). The two outer support bars (8) in the same set and the adjacent inner support bars (9) form a group and are used together to extend into the inside of the violin tube to provide support. The outer bracket (5) is provided with an external fixing component for fixing all the outer support bars (8), and the inner bracket (6) is provided with an internal fixing component for fixing all the inner support bars (9). The external fixation assembly includes: A limiting member (10) is slidably connected to the outer bracket (5) near the inner bracket (6) via a connecting rod. The limiting member (10) is slidably connected to the inner bracket (6) via a connecting rod. The outer bracket (5) is equipped with a second push rod (11), the telescopic end of which is fixedly connected to the limiting member (10). A third through groove (101) is provided in the middle of the limiting member (10), and the third through groove (101) is used for the inner support bar (9) to pass through. The limiting member (10) is provided with two symmetrically distributed clearance slots (102), which are used for the outer support bar (8) to pass through. The middle part of the outer support (5) is provided with a first through slot (501). The limiting member (10) is provided with two symmetrically distributed extrusion slopes (103). The extrusion slopes (103) are located in the first through slot (501) and together with the first through slot (501) extrude and limit the outer support bar (8). In the direction from the outer support (5) toward the bending module (2), the thickness of the outer support (8) gradually increases, and the thickness of the inner support (9) gradually decreases.

2. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 1, characterized in that, The internal fixation assembly includes: A limiting plate (12) is slidably connected to the inner support (6) via a connecting rod. A fourth through groove (121) is provided in the middle of the limiting plate (12), which is used for the inner support bar (9) to pass through. A third push rod (13) is installed on the inner support (6). The telescopic end of the third push rod (13) is fixedly connected to the limiting plate (12). Two symmetrically distributed clamping plates (14) are slidably connected to the side of the limiting plate (12) near the inner support (6). A second through groove (601) is provided in the middle of the inner support (6). The clamping plate (14) slides along the second through groove (601) and is used to squeeze and limit the inner support bar (9).

3. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 2, characterized in that, Two slide rails (3) are slidably connected to a secondary mounting base (15) near the bending module (2). The secondary mounting base (15) is provided with a power module for driving it to slide along the slide rails (3). A support frame (16) is fixedly connected to the secondary mounting base (15). A sliding plate (17) is slidably connected to the support frame (16) through a connecting rod. A fourth push rod (18) is installed on the support frame (16). The telescopic end of the fourth push rod (18) is fixedly connected to the sliding plate (17). The sliding plate (17) is close to the... Two symmetrically distributed support plates (19) are slidably connected to one side of the support frame (16). The opposing sides of the two support plates (19) are provided with equidistant limiting protrusions (191). The limiting protrusions (191) are used to limit the position of the adjacent outer support bars (8) in the vertical direction. A fifth through groove (161) is provided in the middle of the support frame (16). The fifth through groove (161) is used to guide the two support plates (19) to approach each other and squeeze and limit the outer support bars (8) and the inner support bars (9).

4. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 3, characterized in that, The two outer supports (8) of the same group are fixedly connected to a connecting piece (20) at the end away from the outer bracket (5).

5. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 4, characterized in that, The connecting piece (20) is provided with two symmetrically distributed guide slopes (201) to facilitate the connecting piece (20) extending into the violin tube.

6. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 5, characterized in that, The connecting piece (20) is made of elastic material. The end of the outer support (8) away from the outer bracket (5) is fixed with a magnet (21). The magnetic field directions of the two magnets (21) on the two outer support (8) in the same group are the same. The magnetic attraction of the two magnets (21) is greater than the elastic force that needs to be overcome to bend the connecting piece (20), which is used to reduce the distance between the ends of the two outer support (8) in the same group.

7. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 6, characterized in that, Oil guide grooves (901) are provided on the sides of the inner support bar (9) that contact the two outer support bars (8).

8. The automatic bending and forming device for heat dissipation harmonica tubes in new energy vehicles according to claim 7, characterized in that, Both clamping plates (14) have grooves on their opposite sides. A sponge strip (22) is embedded in the groove of the clamping plate (14) and the sponge strip (22) contacts the inner support strip (9).

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