A stamping device for deviation correction processing of a new energy automobile battery liquid cooling plate

Abstract

The application discloses a stamping device for deviation rectification processing of a new energy automobile battery liquid cooling plate, and relates to the technical field of new energy automobile device and accessory manufacturing. The lower die is provided with a positioning groove and a forming groove with a vacuum suction port, and the upper die is provided with a stamping part. The upper die is fixed with first and second guide pillars which are respectively inserted into guide grooves of the lower die. An inner pressure side block is movably arranged in a first containing groove outside the forming groove and is associated with the first guide pillar through a first linkage mechanism. An outer pressure side block is movably arranged in a second containing groove at the edge of the positioning groove and is associated with the second guide pillar through a second linkage mechanism. The first linkage mechanism elastically connects the inner pressure side block, the second linkage mechanism elastically connects the outer pressure side block, the linkage mechanism is movable, the compression amount of the elastic member is accurately controlled, and the edge pressure applied by the pressure side block to the plate is adjusted. The plate part is accurately positioned through vacuum adsorption, dynamic edge pressing is realized in a partitioned and time-division manner by using pure mechanical linkage, the stamping deviation of the curved flow channel is effectively prevented, and the forming precision is improved.

Description

Technical Field

[0001] This invention relates to the field of new energy vehicle device and component manufacturing technology, specifically a stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries. Background Technology

[0002] In the power battery packs of new energy vehicles, the liquid cooling plate is a key component for achieving battery thermal management. The flow channel plate of the liquid cooling plate is usually formed into a complex curved heat exchange channel on an aluminum alloy sheet using a stamping process. During the stamping process, uneven material flow between the punch and die can easily lead to flow channel displacement, wrinkling, or even cracking, seriously affecting the heat exchange efficiency and sealing reliability of the liquid cooling plate.

[0003] Existing stamping dies typically use an integral blank holder ring to apply a constant blank holder force to the sheet metal. This makes it difficult to adapt to the different blank holder force requirements of different areas of curved runners (such as straight edge areas, rounded corner areas, and sharp corner areas), and it also cannot dynamically adjust the blank holder force according to the stamping process (initial clamping, material flow, bottom forming). In addition, before mold closing, the sheet metal is only roughly positioned by locating pins or locating plates, and slight displacement can easily occur at the moment of contact of the blank holder ring, resulting in misalignment between the runner and the punch.

[0004] In summary, existing stamping dies cannot achieve precise positioning of sheet metal and apply targeted and reasonable blank holder forces to the sheet metal in different areas outside the flow channel. This results in poor controllability of sheet metal material flow, which can easily lead to quality defects such as flow channel position deviation, wrinkling, or even tearing, seriously affecting the heat exchange efficiency and sealing reliability of the liquid cooling plate. Summary of the Invention

[0005] The purpose of this invention is to provide a stamping device for correcting the deviation of liquid cooling plates in new energy vehicle batteries in order to overcome the defects of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries, comprising:

[0007] The mold assembly includes a lower mold and an upper mold. The lower mold has a positioning groove with several vacuum suction ports machined within it, extending to the surface of the positioning groove to adsorb and fix metal plates within it. The upper mold is fitted with a stamped part, and the bottom of the positioning groove in the lower mold has a forming groove. The stamped part and the forming groove cooperate with each other, and their shapes match the heat exchange channels (including curved channels) of the flow channel plate in the liquid cooling plate of new energy vehicle batteries.

[0008] The guide assembly includes several first guide pillars and second guide pillars. All guide pillars are fixedly mounted on the upper mold and move with the upper mold. The lower mold has corresponding first guide grooves and second guide grooves. The first guide pillars are inserted into the first guide grooves, and the second guide pillars are inserted into the second guide grooves, providing precise guidance for the downward movement of the upper mold.

[0009] An inner pressure block is movably disposed within the first receiving groove of the lower die. The first receiving groove is located outside the forming groove and communicates with the positioning groove. The inner pressure block is associated with the first guide pillar via a first linkage mechanism. When the upper die descends, the first guide pillar drives the first linkage mechanism, thereby controlling the inner pressure block to apply a pressure force to the area on the metal plate immediately adjacent to the outside of the heat exchange channel. The magnitude and timing of this pressure force are determined by the mechanical structure of the first linkage mechanism.

[0010] An outer pressing block is movably disposed within the second receiving groove of the lower die. The second receiving groove is located at the edge of the positioning groove and communicates with the positioning groove. The outer pressing block is associated with the second guide pillar via a second linkage mechanism. When the upper die descends, the second guide pillar drives the second linkage mechanism, thereby driving the outer pressing block upward to abut against the edge area of ​​the metal plate, providing an overall pressing force.

[0011] As a further description of the above technical solution:

[0012] The inner pressure block is broken into several independent blocks along the outer contour of the forming groove. These independent blocks together form a ring-shaped layout, corresponding to the straight and curved sections of the forming groove, respectively. Through this segmented design, differentiated pressure forces can be applied to different curvature areas of the flow channel.

[0013] As a further description of the above technical solution:

[0014] The first linkage mechanism includes an inner slide, a wedge-shaped guide, and a first lifting member. The inner slide is slidably disposed in the third receiving groove of the lower mold, with its end corresponding to the pointed block at the bottom of the first guide pillar. The wedge-shaped guide is fixed to the inner slide and slidably engages with the fourth receiving groove at the bottom of the first receiving groove. The first lifting member slides into the first receiving groove, with its bottom first wedge-shaped surface slidably abutting against the second wedge-shaped surface of the wedge-shaped guide. The top of the first lifting member is connected to the inner pressure block via an elastic element. When the first guide pillar moves downward, the pointed block pushes the inner slide horizontally, and the wedge-shaped guide moves accordingly. Through the wedge-shaped surface engagement, the first lifting member is lifted upward, thereby pushing the inner pressure block to press against the plate. During this process, the first elastic element is compressed, thereby applying a defined and variable pressure force to the inner pressure block.

[0015] As a further description of the above technical solution:

[0016] The inner slide is connected to the ball shaft via a coupling, and the ball shaft abuts against the inclined surface of the pointed block to reduce friction and improve transmission accuracy.

[0017] As a further description of the above technical solution:

[0018] The inner slide can be associated with several sets of wedge-shaped guides and the first lifting member, thereby enabling a first guide pillar to simultaneously drive the partitioning action of multiple inner pressure side blocks.

[0019] As a further description of the above technical solution:

[0020] A first boss is provided on the top of the first lifting member, and a first elastic element is provided between the first boss and the inner pressing block. This elastic element is the direct generating element of the pressing force, and its compression amount is uniquely determined by the rising distance of the first lifting member, thereby determining the magnitude of the pressing force on the inner pressing block.

[0021] As a further description of the above technical solution:

[0022] The second linkage mechanism includes a V-shaped rocker and a second lifting member. The V-shaped rocker is hinged in the fifth receiving groove of the lower mold, with one end corresponding to the second guide pillar and the other end abutting against the second lifting member. The second lifting member slides into the second receiving groove, and its top elastically abuts against the outer pressure block via a second elastic member. When the second guide pillar moves downward, its bottom pushes one end of the V-shaped rocker, causing the V-shaped rocker to rotate. The other end lifts the second lifting member upward a certain distance, and the second elastic member generates a corresponding compression at this distance, thereby applying a defined pressure force to the outer pressure block.

[0023] As a further description of the above technical solution:

[0024] The bottom of the second guide pillar is provided with a hemispherical abutment block, which makes point contact with the V-shaped rocker plate to ensure stable force transmission.

[0025] As a further description of the above technical solution:

[0026] The second lifting member has a second boss at its top, and a second elastic member is provided between the second boss and the outer pressure block. This elastic member also serves as a direct generator of the pressure force, and its compression amount is uniquely determined by the rising distance of the second lifting member.

[0027] In summary, due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0028] This invention relates to a stamping device used in the integral stamping of curved flow channels in liquid cooling plates for new energy vehicle batteries. Specifically, the plate is firmly adsorbed onto the precise position of the lower die before mold closing via a vacuum suction port in the positioning groove, avoiding displacement caused by contact of the blank holder and ensuring accurate positioning of the curved flow channel and the stamped part. The inner blank holder blocks are segmented along the contour of the forming groove, allowing for independent and adjustable blank holder forces to be applied to different areas (straight sections and curved sections) on the outside of the heat exchange flow channel. This adapts to the material flow characteristics under different curvatures, effectively suppressing wrinkling and displacement, and achieving zoned blank holder pressing for curved structures. Utilizing the mechanical motion of the upper die moving downwards, the inner and outer blank holder blocks are driven by the first and second linkage mechanisms respectively, achieving automatic matching between the blank holder force and the stamping process. In the initial stage of stamping, the inner blank holder block contacts and provides a larger blank holder force to control the area near the flow channel. In the later stage of stamping, the outer blank holder block participates in blank holder pressing, controlling the overall material flow and ultimately achieving pressure holding and shaping, realizing a dynamic, follow-up blank holder stamping process. The lifting distance of the lifting component is precisely controlled by the linkage mechanism. The compression amount of the elastic component corresponds uniquely to this distance, thus enabling precise quantitative control of the blank holder force and avoiding the fluctuations in blank holder force caused by the uncertain compression amount of traditional elastic components. The generation and changes of the entire blank holder force, as well as the activities of the internal components of the mold, rely entirely on the driving force of the upper mold's downward movement. No external hydraulic or electrical control system is required, resulting in a reliable structure, low cost, and easy maintenance. The first and second guide pillars not only serve as guides for the upper mold but also as the driving source for the linkage mechanism, resulting in a compact structure and reducing the number of mold parts. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a partial cross-sectional view of a stamping device used for correcting the alignment of liquid cooling plates in new energy vehicle batteries.

[0031] Figure 2 This is a cross-sectional view of the lower die in one embodiment of a stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries.

[0032] Figure 3 for Figure 2 Enlarged view of point A in the middle.

[0033] Figure 4 for Figure 2 Enlarged view of point B in the middle.

[0034] Figure 5 for Figure 2A magnified view of point C in the middle.

[0035] Figure 6 This is a schematic diagram of the pointed block and ball shaft in another embodiment of a stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries.

[0036] Figure 7 for Figure 2 Enlarged view of point D in the middle.

[0037] Legend:

[0038] 1-Lower mold; 2-Upper mold; 3-Positioning groove; 4-Vacuum suction port; 5-Stamping part; 6-Forming groove; 7-First guide pillar; 8-Second guide pillar; 9-First guide groove; 10-Second guide groove; 11-Inner pressure block; 12-First receiving groove; 13-Outer pressure block; 14-Second receiving groove; 15-Inner slide; 16-Wedge guide seat; 17-First lifting member; 18-Third receiving groove; 19-Pointed block; 20-Fourth receiving groove; 21-First wedge surface; 22-Second wedge surface; 23-Connecting shaft; 24-Spherical shaft; 25-First boss; 26-First elastic member; 27-V-shaped rocker; 28-Second lifting member; 29-Fifth receiving groove; 30-Abutting block; 31-Second boss; 32-Second elastic member. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0040] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0041] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0042] In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0043] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Please see Figure 1-7 This invention provides a technical solution: a stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries, comprising:

[0045] A rectangular positioning groove 3 (corresponding to the shape of the flow channel plate in the liquid cooling plate, or other shapes can be used) is machined in the center of the upper surface of the lower mold 1. The shape of the groove matches the shape of the metal sheet to be stamped (which can be made of aluminum alloy). Multiple vacuum suction ports 4 are machined in an array on the bottom surface of the positioning groove 3. The vacuum suction ports 4 are collected through vacuum air passages drilled inside the lower mold 1 to a vacuum connector on the surface. The vacuum connector is connected to a vacuum generator (such as a vacuum pump). The central area of ​​the positioning groove 3 is further recessed to form a forming groove 6. The shape of the forming groove 6 matches the curved heat exchange flow channel required by the liquid cooling plate—including multiple straight sections and arc sections with different radii of curvature.

[0046] A stamping part 5 is fixedly installed on the lower surface of the upper mold 2. The shape of the stamping part 5 is complementary to the forming groove 6. Multiple first guide pillars 7 and second guide pillars 8 are fixed on the upper mold 2. The first guide pillars 7 and second guide pillars 8 are respectively inserted into the corresponding first guide grooves 9 and second guide grooves 10 of the lower mold 1. The lower end of the first guide pillar 7 is machined into a pointed block 19 with an inclined slope. The lower end of the second guide pillar 8 is fixed with a hemispherical abutment block 30.

[0047] Multiple inner pressure edge blocks 11 are disposed separately along the outer contour of the forming groove 6, and they correspond end to end to form a ring. Among them, the multiple inner pressure edge blocks 11 are arranged in the straight part and the arc-shaped part of the forming groove 6, respectively. Each inner pressure edge block 11 is installed in the corresponding first receiving groove 12 on the lower mold 1. The opening of the first receiving groove 12 is connected to the bottom surface of the positioning groove 3, so that the inner pressure edge block 11 can extend upwards out of the bottom surface of the positioning groove 3.

[0048] The specific arrangement of the first linkage mechanism is as follows: each first guide pillar 7 corresponds to an inner slide block 15. The inner slide block 15 is horizontally slidably installed in the third receiving groove 18 of the lower mold 1, and its end facing the first guide pillar 7 is connected to a ball shaft 24 through a connecting shaft 23. The ball shaft 24 abuts against the inclined surface of the pointed block 19. Multiple wedge-shaped guide seats 16 are fixed on the upper surface of the inner slide block 15, so that it can be associated with multiple inner pressure edge blocks 11. The upper surface of the wedge-shaped guide seat 16 is provided with a second wedge-shaped surface 22. A fourth receiving groove 20 is opened at the bottom of the first receiving groove 12, and the wedge-shaped guide seat 16 horizontally slides into the fourth receiving groove 20. The lower end of the first lifting member 17 is machined with a first wedge-shaped surface 21, which slides in cooperation with the second wedge-shaped surface 22. The upper end of the first lifting member 17 is provided with a first boss 25, and a first elastic member 26 (using a cylindrical helical compression spring) is installed between the first boss 25 and the inner pressure edge block 11. When the first guide pillar 7 descends, the pointed block 19 pushes the inner slide block 15 horizontally via the ball shaft 24, thereby lifting the first lifting member 17 upward a specific distance through the wedge-shaped surface engagement. The first elastic member 26 generates a corresponding compression at this distance, thereby applying a corresponding pressing force to the inner pressing block 11, specifically as follows: Figure 2-5 As shown.

[0049] In addition, such as Figure 2 , 3 As shown, in one embodiment, the pointed block 19 is wider at the top and narrower at the bottom, so that during its downward movement, it continuously pushes the ball shaft 24 to the left, causing the pressing force applied by the inner pressing block 11 to the plate to gradually increase; while Figure 6 Another embodiment is given, in which the cross-section of the pointed block 19 first increases and then decreases from bottom to top, so that the blanking force applied by the inner blanking block 11 first increases and then decreases. In the early stage of stamping, the plate is pressed tightly, and the flow of material at the corresponding position of the plate is suppressed. In the later stage of stamping, the blanking force is reduced to meet the material flow requirements to a certain extent. Together with the blanking force applied by the outer blanking block 13 on the outside, the plate is stamped and held under pressure to ensure the forming quality of the flow channel plate of the liquid cooling plate under the corresponding stamping scenario and processing requirements.

[0050] The specific structure of the second linkage mechanism is as follows: Each second guide pillar 8 corresponds to a V-shaped rocker 27. The V-shaped rocker 27 is rotatably mounted in the fifth receiving groove 29 of the lower mold 1 via a hinge shaft. One end of the rocker extends upward to the bottom of the second guide groove 10 and contacts the hemispherical abutment block 30; the other end abuts upward against the lower end of the second lifting member 28. The second lifting member 28 is vertically slidably mounted in the second receiving groove 14. A second boss 31 is provided at its upper end, and a second elastic member 32 (also using a helical spring) is provided between the second boss 31 and the outer pressure block 13. When the second guide pillar 8 moves downward, the abutment block 30 pushes the V-shaped rocker 27 to rotate, thereby lifting the second lifting member 28 upward a specific distance. The second elastic member 32 generates a corresponding compression at this distance. The product of this compression and the stiffness of the second elastic member 32 is the pressure force applied to the outer pressure block 13, specifically as follows: Figure 2 , 7 As shown. The outer pressure block 13 is a rectangular ring-shaped integral part, which is installed in the second receiving groove 14 of the lower mold 1. The second receiving groove 14 is arranged around the outer edge of the positioning groove 3 and is connected to the positioning groove 3.

[0051] The working principle of a stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to this embodiment includes:

[0052] Initial state: Upper mold 2 is in the upper position, and the vacuum system of lower mold 1 is closed. The operator places the aluminum alloy sheet into the positioning groove 3, aligning the edge of the sheet with the side wall of the positioning groove 3. The vacuum is activated, and the vacuum suction port 4 firmly adheres the sheet to the bottom surface of the positioning groove 3. Figure 1 As shown.

[0053] As the upper die descends, the blank holder begins to close: Driven by the press, the upper die 2 moves downwards and begins to close. The first guide pillar 7 and the second guide pillar 8 are inserted into the first guide groove 9 and the second guide groove 10, respectively. First, the inclined surface of the pointed block 19 at the lower end of the first guide pillar 7 contacts the ball shaft 24, pushing the inner slide 15 horizontally inwards. The inner slide 15 drives the wedge-shaped guide 16 to translate, and the second wedge surface 22 pushes the first wedge surface 21 of the first lifting member 17, causing the first lifting member 17 to rise a certain distance. The first elastic member 26 is compressed, generating elastic force, which directly acts on the inner blank holder block 11, causing it to apply blank holder force to the outer area of ​​the sheet metal flow channel. As the upper die continues to descend, the blank holder force dynamically changes with the stamping process, such as... Figure 2-6 As shown.

[0054] Stamping: When the upper die 2 descends to the point where the stamping part 5 begins to enter the sheet metal, the sheet metal is pressed into the forming groove 6, and the curved flow channel gradually takes shape. During this process, the inner pressure block 11 always maintains pressure on the outer area of ​​the sheet metal flow channel to prevent the material from wrinkling outwards or the flow channel from shifting. At the same time, as the upper die 2 continues to descend, the hemispherical abutment block 30 at the lower end of the second guide pillar 8 begins to contact one end of the V-shaped rocker 27, pushing the V-shaped rocker 27 to rotate. Its other end pushes the second lifting member 28 upwards, and the second elastic member 32 is compressed, generating elastic force. This elastic force acts directly on the outer pressure block 13, causing it to apply a pressure force to the edge area of ​​the sheet metal, controlling the flow speed of the material at the edge of the sheet metal towards the center of the die, such as... Figure 2 , 7 As shown.

[0055] Holding pressure and return stroke: After the stamping reaches the bottom, the press holds pressure for a period of time, and then the upper die 2 returns. The first guide pillar 7 and the second guide pillar 8 gradually detach, and the first elastic element 26 and the second elastic element 32 return to their free length. Under the action of the component's own gravity, they respectively push the inner pressure block 11 and the outer pressure block 13, as well as the component below, to reset. The vacuum system is turned off, and the formed liquid cooling plate flow channel plate is removed.

[0056] A traditional die using an integral blank holder and locating pins, and a die for this stamping process, were used to stamp liquid-cooled plates of the same specifications. The flow channel offset (deviation from the design position) of 100 products was statistically analyzed. The results showed that the average and maximum offset of the traditional die were both on the order of 0.1 mm, with a wrinkling scrap rate of 6%. In contrast, the 100 products using this device had an average and maximum offset on the order of 0.01 mm, with a wrinkling scrap rate of 0.5%. This significantly improves stamping accuracy and yield.

[0057] The stamping device provided in this embodiment has a compact structure and relies entirely on mechanical linkage to achieve partitioning and dynamic edge pressing. The edge pressing force is determined by precisely controlling the compression amount of the elastic element through the lifting distance of the lifting component. It can be installed on ordinary mechanical presses or hydraulic presses and is suitable for mass production of flow channel plates for liquid cooling plates of new energy vehicle batteries. It has the characteristics of high precision, high reliability and low cost, and has good prospects for industrial promotion and application.

[0058] In summary, due to the adoption of the above technical solution, the stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to this embodiment has the following advantages compared with the prior art:

[0059] This invention relates to a stamping device used in the integral stamping of curved flow channels in liquid cooling plates for new energy vehicle batteries. Specifically, the plate is firmly adsorbed onto the precise position of the lower die before mold closing via a vacuum suction port in the positioning groove, avoiding displacement caused by contact of the blank holder and ensuring accurate positioning of the curved flow channel and the stamped part. The inner blank holder blocks are segmented along the contour of the forming groove, allowing for independent and adjustable blank holder forces to be applied to different areas (straight sections and curved sections) on the outside of the heat exchange flow channel. This adapts to the material flow characteristics under different curvatures, effectively suppressing wrinkling and displacement, and achieving zoned blank holder pressing for curved structures. Utilizing the mechanical motion of the upper die moving downwards, the inner and outer blank holder blocks are driven by the first and second linkage mechanisms respectively, achieving automatic matching between the blank holder force and the stamping process. In the initial stage of stamping, the inner blank holder block contacts and provides a larger blank holder force to control the area near the flow channel. In the later stage of stamping, the outer blank holder block participates in blank holder pressing, controlling the overall material flow and ultimately achieving pressure holding and shaping, realizing a dynamic, follow-up blank holder stamping process. The lifting distance of the lifting component is precisely controlled by the linkage mechanism. The compression amount of the elastic component corresponds uniquely to this distance, thus enabling precise quantitative control of the blank holder force and avoiding the fluctuations in blank holder force caused by the uncertain compression amount of traditional elastic components. The generation and changes of the entire blank holder force, as well as the activities of the internal components of the mold, rely entirely on the driving force of the upper mold's downward movement. No external hydraulic or electrical control system is required, resulting in a reliable structure, low cost, and easy maintenance. The first and second guide pillars not only serve as guides for the upper mold but also as the driving source for the linkage mechanism, resulting in a compact structure and reducing the number of mold parts.

[0060] 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. A stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries, characterized in that, include: The mold assembly includes a lower mold and an upper mold. The lower mold is provided with a positioning groove, and a plurality of vacuum suction ports in the lower mold extend to the surface of the positioning groove. The vacuum suction ports are used for adsorption and positioning of metal plates. The upper mold and the positioning groove are respectively provided with corresponding stamping parts and forming grooves. The stamping parts and forming grooves are matched with the heat exchange channels of the flow channel plate in the liquid cooling plate of new energy vehicle batteries. Several first guide pillars and second guide pillars are provided on the upper mold and respectively inserted into the first guide groove and second guide groove of the lower mold; An inner pressure edge block is movably disposed in the first receiving groove of the lower mold and located outside the forming groove. The first receiving groove is connected to the positioning groove. The inner pressure edge block is associated with the first guide pillar through a first linkage mechanism. The first linkage mechanism is used to control the force formed by the inner pressure edge block on the outer area of ​​the heat exchange channel of the metal plate. An outer pressure edge block is movably disposed in the second receiving groove of the lower mold. The second receiving groove is connected to the edge of the positioning groove. The outer pressure edge block is associated with the second guide pillar through a second linkage mechanism. The second linkage mechanism is used to drive the outer pressure edge block to abut against the edge of the metal plate.

2. The stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 1, characterized in that, The inner pressure edge blocks are arranged in several segments along the outer contour of the forming groove and form a ring-shaped layout. The segments of the inner pressure edge blocks correspond to the straight section and the arc section of the forming groove, respectively.

3. The stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 1, characterized in that, The first linkage mechanism includes an inner slide, a wedge-shaped guide, and a first lifting member. The inner slide is slidably disposed in the third receiving groove of the lower mold, and its end corresponds to the pointed block of the first guide pillar. The wedge-shaped guide is disposed on the inner slide and slidably docks with the fourth receiving groove at the bottom of the first receiving groove. The first lifting member slides into the first receiving groove, and its bottom first wedge-shaped surface slidably abuts against the second wedge-shaped surface of the wedge-shaped guide. The top of the first lifting member elastically docks with the inner pressure edge block.

4. The stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 3, characterized in that, The inner slide is connected to the ball shaft via a coupling, and the ball shaft abuts against the inclined surface of the pointed block.

5. A stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 3, characterized in that, The inner slide is associated with several sets of wedge-shaped guides and a first lifting member.

6. A stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 3, characterized in that, The top of the first lifting member is provided with a first boss, and a first elastic member is provided between the first boss and the inner pressure block.

7. The stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 1, characterized in that, The second linkage mechanism includes a V-shaped rocker and a second lifting member. The V-shaped rocker is hinged in the fifth receiving groove of the lower mold. One end of the rocker corresponds to the second guide pillar, and the other end abuts against the second lifting member. The second lifting member slides into the second receiving groove, and its top elastically abuts against the outer pressure block.

8. A stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 7, characterized in that, The hemispherical abutment block at the bottom of the second guide pillar abuts against the V-shaped rocker.

9. A stamping device for correcting the alignment of liquid cooling plates in new energy vehicle batteries according to claim 7, characterized in that, The top of the second lifting member is provided with a second boss, and a second elastic member is provided between the second boss and the outer pressure block.

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