New energy automobile battery shell die-casting mold

Abstract

The application belongs to the technical field of die-casting moulds, and particularly discloses a new energy automobile battery shell die-casting mould, which comprises a male die, a female die and a processing mechanism, the male die is provided with the female die on one side, the processing mechanism is installed between the male die and the female die, the processing mechanism comprises an adjusting mechanism, a correcting mechanism and a cleaning mechanism, the adjusting mechanism comprises a connecting frame, an adjusting sliding rail, an adjusting sliding block and a connecting frame, the connecting frame is located between the male die and the female die, the lower middle part of the connecting frame is connected with the adjusting sliding rail, the adjusting sliding rail is slidably connected with the adjusting sliding block below, and the adjusting sliding block is connected with the connecting frame through a connecting block below. Through the cooperative work of the correcting mechanism, the cooling mechanism and the cleaning mechanism, the new energy automobile battery shell die-casting mould can realize instant correction of the casting after the mould is opened and synchronous cleaning of the mould, effectively inhibit the thermal deformation of the large thin-walled battery shell, and improve the post-processing efficiency.

Description

Technical Field

[0001] This invention belongs to the field of die casting molds, and specifically discloses a die casting mold for a new energy vehicle battery shell. Background Technology

[0002] The battery casing of new energy vehicles (also known as battery tray or battery pack lower housing) is a core structural component of the battery system, undertaking three major functions: supporting the battery module, providing impact protection, and managing thermal energy. With the development of integrated die casting technology, large aluminum alloy battery casings are evolving from traditional profile welding processes to integrated die casting molding. Battery casings produced using integrated die casting technology can integrate a structure that traditionally required dozens of parts to be welded into a single unit. The product size can typically reach the 2000mm×1600mm level, with the thinnest wall thickness being only 2-3mm. It has advantages such as high production efficiency, good sealing performance, and lightweight design. However, after die casting, this large thin-walled casing structure still faces a series of post-processing challenges.

[0003] After the large integrated battery casing is opened, it is still in a relatively high temperature state (usually above 150°C). Unlike plastic products, which are basically cooled and shaped when the mold is opened, aluminum alloy castings cannot stay in the mold cavity for a long time until they are completely cooled. Otherwise, it will greatly extend the single production cycle and reduce the output efficiency of the die casting machine. Therefore, the mold must be opened and the parts removed while the casting is still hot. However, due to the large size, thin wall thickness, and uneven stiffness distribution of the castings, the residual stress inside the castings is released instantly after the mold is opened, which can easily cause warping deformation and affect the subsequent assembly accuracy. In addition, the release agent, aluminum chips, oxides and other impurities remaining on the inner wall of the mold cavity after die casting will affect the surface quality of the product in the next mold if they are not cleaned in time. However, in the current technology, the straightening process is usually transferred to a separate device after the casting has completely cooled down. This fails to make effective use of the window period when the casting is still hot and has good plasticity. Not only is the straightening efficiency low, but it is also easy to introduce new deformations during the transfer and secondary clamping process. The cleaning of the mold inside after die casting also relies on manual operation or separate cleaning equipment, which is difficult to effectively connect with the die casting production cycle. Summary of the Invention

[0004] To address the technical problems of warping and deformation of large integrated battery casings after hot mold opening, and the low efficiency of mold cleaning and straightening processes, this invention provides a die-casting mold for new energy vehicle battery casings.

[0005] To achieve the above objectives, the present invention provides a die-casting mold for a new energy vehicle battery casing, including a punch, a die, and a processing mechanism. The die is provided on one side of the punch, and the processing mechanism is installed between the punch and the die. The processing mechanism includes an adjustment mechanism, a straightening mechanism, and a cleaning mechanism. The adjustment mechanism includes a connecting frame, an adjustment slide rail, an adjustment slider, and a connecting frame. The connecting frame is located between the punch and the die. The adjustment slide rail is connected to the middle of the lower end of the connecting frame. The adjustment slider is slidably connected below the adjustment slide rail. The connecting frame is installed below the adjustment slider via a connecting block. The straightening mechanism is installed inside the connecting frame on one side and aligned with the punch side. The cleaning mechanism is installed on the other side of the connecting frame and aligned with the die side. After the die and punch are opened, the connecting frame remains fixed. The connecting frame moves along the slide rail direction through the sliding cooperation of the adjusting slide rail and the adjusting slider, and accurately enters the working area between the punch and the die. This allows the straightening mechanism to be aligned with the casting on the side of the punch for straightening and positioning. At the same time, the cleaning mechanism located on the other side of the connecting frame is aligned with the inside of the die and uses high-pressure gas to blow away and clean the residual mold release agent, aluminum chips and oxides and other impurities on the inner wall of the die cavity. The correction mechanism includes a stabilizing mechanism, a support plate, a second electric telescopic rod, a correction frame, correction contact blocks, a driving mechanism, a lifting plate, and a cooling mechanism. Each side of the correction frame is connected to a correction contact block, and one side of each correction contact block contacts the casting on the side of the punch. The correction mechanism makes multiple correction contacts simultaneously at multiple points on one side of the casting, which can apply force evenly to the easily deformable areas of large thin-walled battery shells, effectively disperse the correction pressure, and avoid secondary deformation caused by local stress concentration. The cleaning mechanism includes a fixed plate, a third electric telescopic rod, a fixed frame, an adjusting pipe, a cleaning nozzle, a rotating joint, and a toggle mechanism. The toggle mechanism is used to adjust the angle position of the adjusting pipe. The adjusting pipe is rotatably connected to one side of the inner wall of the fixed frame via a rotating rod, and a cleaning nozzle is connected to one side of the adjusting pipe.

[0006] Preferably, the stabilizing mechanism includes a connecting plate, a first electric telescopic rod, an adjusting plate, and stabilizing rods. The lower end of the connecting plate is connected to the middle of the lower end of the inner wall of the connecting frame, and both ends of the connecting plate are connected to the two sides of the inner wall of the connecting frame. The middle of the upper end of the connecting plate is connected to the lower end of the support plate. The middle of one side of the connecting plate is connected to the first electric telescopic rod. The output end of the first electric telescopic rod extends through to one side of the connecting plate and is connected to the adjusting plate. Stabilizing rods are connected to one side of the adjusting plate. There are two stabilizing rods, and the two stabilizing rods correspond to two guide grooves below one side of the punch. The shape of the two stabilizing rods is adapted to the shape of the corresponding guide grooves. The stabilizing mechanism drives two stabilizing rods to extend through the first electric telescopic rod and insert them into the original guide groove on one side of the punch. It utilizes the existing high-precision positioning structure on the mold body to achieve precise positioning between the connecting frame and the punch, preventing the connecting frame from shifting or shaking during the straightening process, and greatly improving the stability and repeatability of the straightening operation.

[0007] Preferably, a support plate is connected to the middle of the upper end of the stabilizing mechanism. The upper end of the support plate is connected to the upper end of the inner wall of the connecting frame. An installation port is provided on the upper and lower parts of one side of the support plate. A second electric telescopic rod is embedded in each of the two installation ports. The output ends of the two second electric telescopic rods are connected to the upper and lower parts of one side of the straightening frame. A drive mechanism is connected to both sides of the connecting frame. A lifting plate is slidably connected to the inner wall of the connecting frame on the side corresponding to the support plate. A cooling mechanism is connected to the upper end of the lifting plate. Two second electric telescopic rods drive the upper and lower parts of the straightening frame to move synchronously, ensuring that the straightening frame is subjected to uniform force and moves smoothly during extension and retraction, avoiding the straightening frame from tilting due to unilateral drive, thereby ensuring the consistency of the fit between each straightening contact block and the surface of the casting.

[0008] Preferably, the driving mechanism includes a housing, a drive motor, a drive screw, a stabilizing block, a stabilizing rod, and a lifting block. The housing is installed on the lower part of one side of the connecting frame. The lower end of the inner wall of the housing is connected to the drive motor. The output end of the drive motor extends through to the top of the housing and is connected to the drive screw. Stabilizing blocks are connected to the upper parts of both sides of the connecting frame.

[0009] Preferably, the upper end of the drive screw is connected to the lower end of one of the stabilizing blocks, and the lower end of the other stabilizing block is connected to a stabilizing rod. The upper part of the outer wall of the stabilizing rod is slidably connected to the upper part of the outer wall of the drive screw, and the outer wall of the drive screw is threadedly connected to the corresponding stabilizing block. Both stabilizing blocks extend through to the inside of the connecting frame on one side. The drive mechanism adopts a transmission method in which the motor drives the lead screw to rotate. Through the threaded engagement between the lead screw and the lifting block, the rotational motion is smoothly converted into the linear lifting motion of the lifting block. The stabilizer bar slides with the lifting block on the other side, which plays a guiding and balancing role for the lifting plate and prevents skewing or jamming during the lifting process.

[0010] Preferably, the cooling mechanism includes a connecting pipe, a cooling nozzle, and an air supply pipe. The lower end of the connecting pipe is connected to the middle of the upper end of the lifting plate through a fixing block. Both ends of the connecting pipe are located on one side of the lifting plate. A cooling nozzle is connected to one side of the connecting pipe. An air supply pipe is connected to the upper end of the connecting pipe. One end of the air supply pipe extends through to one side of the connecting frame. The middle part of the air supply pipe is a flexible pipe. The cooling mechanism introduces external cooling gas into the connecting pipe through the gas supply pipe, and then sprays it out evenly from the cooling nozzle to achieve uniform cooling of the entire casting surface. The middle part of the gas supply pipe adopts a flexible pipe design, which can bend and extend freely with the lifting plate, ensuring that the gas path can supply gas smoothly at different height positions.

[0011] Preferably, there are two fixed plates. The lower ends of the two fixed plates are respectively connected to the upper sides of the lifting plate. A third electric telescopic rod is connected to the middle of one side of the two fixed plates. The output ends of the two third electric telescopic rods extend through to one side of the two fixed plates. The output ends of the two third electric telescopic rods are connected to moving blocks. The lower ends of the two moving blocks are connected to the upper sides of the fixed frame. Two fixed plates are symmetrically arranged on both sides of the upper part of the lifting plate, and two third electric telescopic rods synchronously drive the moving block to move, thereby driving the fixed frame to move forward and backward as a whole, so as to achieve precise adjustment of the distance between the cleaning nozzle and the concave mold.

[0012] Preferably, a fixing tube is connected to one side of the connecting frame, one end of the fixing tube extends through into the interior of the fixing frame, the interior of the fixing tube is a flexible tube, and a rotating joint is connected to one end of the fixing tube, and one end of the rotating joint is connected to one end of the adjusting tube. The fixed pipe is used to introduce external high-pressure gas into the adjusting pipe inside the fixed frame. Its internal flexible pipe design can adapt to the position change of the fixed frame as the third electric telescopic rod moves forward and backward, avoiding the pipeline from creating resistance to the movement of the fixed frame. The rotating joint connects the fixed pipe and the adjusting pipe, so that the pipeline connection is not affected during the swinging process of the adjusting pipe, ensuring the continuity of gas supply without restricting the rotational freedom of the adjusting pipe.

[0013] Preferably, the actuating mechanism includes a connecting plate, an adjusting rod, a rotating seat, a rotating block, a fourth electric telescopic rod, and a mounting block. The connecting plate is connected to the middle of the outer wall of the rotating rod, the adjusting rod is connected to the middle of one side of the connecting plate, the rotating seat is connected to the lower end of the adjusting rod, the rotating block is rotatably connected inside the rotating seat, the fourth electric telescopic rod is connected to the middle of the lower end of the rotating block, and the mounting block is connected to the fixed frame at the position corresponding to the fourth electric telescopic rod. The mounting block is L-shaped, and the upper end of the mounting block is connected to the lower end of the fourth electric telescopic rod. The actuating mechanism drives the rotating block to move up and down through the extension and retraction of the fourth electric telescopic rod. The rotating block drives the adjusting rod to rotate around the axis of the rotating rod through the rotating seat, thereby causing the connecting plate and adjusting pipe to swing synchronously, realizing the dynamic adjustment of the spray angle of the cleaning nozzle.

[0014] Compared with the prior art, the present invention has the following beneficial effects: By setting a movable connecting frame and a straightening mechanism between the punch and the die, the second electric telescopic rod drives the straightening frame and straightening contact block to press against the casting from the side while the casting is still hot after mold opening. This applies straightening pressure to the deformation hot spots of the casting, effectively utilizing the deformation window period when the casting is still hot and has good plasticity, and timely suppressing warping deformation caused by residual stress release. At the same time, by inserting a stabilizing rod into the guide groove below the punch, the high-precision positioning structure on the mold body is used to achieve precise positioning between the connecting frame and the punch, ensuring the positional stability of the connecting frame during the straightening process.

[0015] During the straightening and pressure holding process, the lifting plate is raised and lowered to the preset height by the drive motor and drive screw. Cooling gas enters the connecting pipe through the gas supply pipe and is then sprayed evenly over a large area onto the surface of the casting by the cooling nozzle. This achieves overall gentle cooling of the large battery shell casting, avoiding the problems of excessive temperature difference and uneven shrinkage caused by localized fixed-point cooling. This allows the temperature of all parts of the casting to drop synchronously, stabilizing the straightening effect without introducing new deformation. Furthermore, the cooling mechanism and the straightening mechanism are integrated on the same connecting frame, allowing straightening and cooling to be carried out simultaneously at the same workstation without the need for additional workstations or transfers. The process is compact and efficient.

[0016] While the straightening and cooling processes are underway, high-pressure gas is introduced through a fixed pipe and sprayed out through a cleaning nozzle to clean the inner wall of the die. At the same time, the adjusting pipe is driven by a toggle mechanism to swing back and forth around the rotating rod, so that the cleaning nozzle continuously changes the spray angle during the spraying process, and flushes the inner wall of the die from multiple directions. This effectively eliminates the cleaning dead corners that exist when cleaning at a fixed angle, and thoroughly blows away residual mold release agent, aluminum chips, oxides and other impurities.

[0017] The cleaning mechanism, straightening mechanism, and cooling mechanism are integrated on the same connecting frame, and the three processes are carried out simultaneously at the same station, which effectively reduces the space occupied by the equipment and improves the automation level and production efficiency of die casting post-processing. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the device of the present invention; Figure 2 This is a schematic diagram of the structure of the processing mechanism of the present invention installed between the punch and the die; Figure 3 This is a schematic diagram of the installation structure of the adjustment mechanism of the present invention; Figure 4 This is a schematic diagram of the mounting structure of the punch and die of the present invention; Figure 5 This is a schematic diagram of the installation structure of the correction mechanism and the cleaning mechanism of the present invention; Figure 6 This is a schematic diagram of the installation structure of the correction frame and multiple correction contact blocks of the present invention; Figure 7 This is a schematic diagram of the installation structure of the second electric telescopic rod and the straightening frame of the present invention; Figure 8 This is a schematic diagram of the installation structure of the fixing plate and the third electric telescopic rod of the present invention; Figure 9 This is a schematic diagram of the fixed frame and adjusting tube structure of the present invention; Figure 10 This is a schematic diagram of the installation structure of the actuating mechanism of the present invention.

[0019] In the diagram: 1. Punch; 2. Die; 3. Connecting frame; 4. Adjusting slide rail; 5. Adjusting slider; 6. Connecting frame; 7. Connecting plate; 8. First electric telescopic rod; 9. Adjusting plate; 10. Stabilizing rod; 11. Support plate; 12. Second electric telescopic rod; 13. Correcting frame; 14. Correcting contact block; 15. Housing; 16. Drive motor; 17. Drive screw; 18. Stabilizing block; 19. Stabilizing rod; 20. Lifting block; 21. Lifting plate; 22. Connecting pipe; 23. Cooling nozzle; 24. Air supply pipe; 25. Fixing plate; 26. Third electric telescopic rod; 27. Fixing frame; 28. Adjusting pipe; 29. ​​Cleaning nozzle; 30. Fixing pipe; 31. Rotary joint; 32. Connecting plate; 33. Adjusting rod; 34. Rotating seat; 35. Rotating block; 36. Fourth electric telescopic rod; 37. Mounting block. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the invention is not limited to the specific embodiments disclosed below.

[0022] like Figures 1-10 The shown is a die-casting mold for a new energy vehicle battery shell, including a punch 1, a die 2, and a processing mechanism. The die 2 is provided on one side of the punch 1. The processing mechanism is installed between the punch 1 and the die 2. The processing mechanism includes an adjustment mechanism, a straightening mechanism, and a cleaning mechanism. The adjustment mechanism includes a connecting frame 3, an adjusting slide rail 4, an adjusting slider 5, and a connecting frame 6. The connecting frame 3 is located between the punch 1 and the die 2. The adjusting slide rail 4 is connected to the middle of the lower end of the connecting frame 3. The adjusting slider 5 is slidably connected below the adjusting slide rail 4. The connecting frame 6 is installed below the adjusting slider 5 through a connecting block. The straightening mechanism is installed inside the connecting frame 6 on one side and aligned with one side of the punch 1. The cleaning mechanism is installed on the other side of the connecting frame 6 and aligned with one side of the die 2. The adjusting slide rail 4 is an electrically controlled slide rail. The adjusting slider 5 is driven by an external controller to slide along the adjusting slide rail 4. The straightening mechanism includes a stabilizing mechanism, a support plate 11, a second electric telescopic rod 12, a straightening frame 13, straightening contact blocks 14, a driving mechanism, a lifting plate 21, and a cooling mechanism. The straightening frame 13 is connected to a straightening contact block 14 on one side, and one side of the multiple straightening contact blocks 14 contacts the casting on one side of the punch 1. The cleaning mechanism includes a fixed plate 25, a third electric telescopic rod 26, a fixed frame 27, an adjusting pipe 28, a cleaning nozzle 29, a fixed pipe 30, a rotating joint 31, and a toggle mechanism. The toggle mechanism is used to adjust the angle position of the adjusting pipe 28. The adjusting pipe 28 is rotatably connected to one side of the inner wall of the fixed frame 27 via a rotating rod. The cleaning nozzle 29 is connected to one side of the adjusting pipe 28. After die casting is completed and the die 2 and punch 1 are opened, the connecting frame 3 remains fixed. The adjusting slider 5 slides along the adjusting slide rail 4, which drives the connecting frame 6 to move to the working area between the punch 1 and the die 2. At this time, the straightening mechanism on one side of the connecting frame 6 is aligned with the casting on the punch 1 which is still in a hot state to straighten it, and the cleaning mechanism on the other side of the connecting frame 6 is aligned with the inner wall of the die 2 to perform high-pressure gas purging and cleaning. By adjusting the sliding cooperation between the slide rail 4 and the adjusting slider 5, the connecting frame 6 can accurately enter the working area between the punch 1 and the die 2 after the mold is opened, integrating the two processes of straightening and cleaning into the same sliding device, realizing two uses in one frame, with a compact structure and efficient switching, reducing the space occupied by the equipment, and improving the automation level and production efficiency of die casting post-processing.

[0023] like Figures 5-7 As shown: The stabilizing mechanism includes a connecting plate 7, a first electric telescopic rod 8, an adjusting plate 9, and a stabilizing rod 10. The lower end of the connecting plate 7 is connected to the lower middle part of the inner wall of the connecting frame 6. The two ends of the connecting plate 7 are connected to the two sides of the inner wall of the connecting frame 6. The upper middle part of the connecting plate 7 is connected to the lower end of the support plate 11. The first electric telescopic rod 8 is connected to the middle part of one side of the connecting plate 7. The output end of the first electric telescopic rod 8 extends through to one side of the connecting plate 7 and is connected to the adjusting plate 9. The adjusting plate 9 is connected to one side of the stabilizing rod 10. There are two stabilizing rods 10. The two stabilizing rods 10 correspond to the two guide grooves below one side of the punch 1. The shape of the two stabilizing rods 10 is adapted to the shape of the corresponding guide groove. When the connecting frame 6 moves to the straightening station by adjusting the slider 5, the first electric telescopic rod 8 is activated, its output end extends, pushes the adjusting plate 9 to move towards the punch 1, and then drives the two stabilizing rods 10 to extend and accurately insert into the two guide grooves below one side of the punch 1. After cleaning, the first electric telescopic rod 8 retracts, driving the stabilizing rods 10 to exit from the guide grooves. The stabilizing mechanism inserts two stabilizing rods 10 into the existing guide grooves on the punch 1 simultaneously. By utilizing the existing high-precision positioning structure on the mold body, the connecting frame 6 remains relatively fixed to the punch 1 during the straightening process. This effectively prevents the connecting frame 6 from shifting or shaking due to the straightening reaction force, and greatly improves the stability and repeatability of the straightening operation.

[0024] like Figures 5-7 As shown: A support plate 11 is connected to the middle of the upper end of the stabilizing mechanism. The upper end of the support plate 11 is connected to the upper end of the inner wall of the connecting frame 6. The upper and lower parts of one side of the support plate 11 are provided with mounting holes. The two mounting holes are each embedded with a second electric telescopic rod 12. The output ends of the two second electric telescopic rods 12 are connected to the upper and lower parts of one side of the straightening frame 13. The two sides of the connecting frame 6 are connected with driving mechanisms. The inner wall of the connecting frame 6 is slidably connected to the side of the support plate 11. The upper end of the lifting plate 21 is connected with a cooling mechanism. After the stabilizing rod 10 is inserted into the guide groove to complete the positioning of the connecting frame 6, the two second electric telescopic rods 12 start synchronously, and their output ends extend simultaneously, pushing the straightening frame 13 to move horizontally towards the punch 1, so that each straightening contact block 14 on the straightening frame 13 simultaneously contacts and presses against multiple deformation hot spots of the casting on the punch 1, applying straightening pressure. After the straightening and pressure holding is completed, the two second electric telescopic rods 12 retract synchronously, driving the straightening frame 13 back to its original position. The drive mechanism is used to drive the lifting plate 21 to slide up and down along the inner wall of the connecting frame 6 to adjust the working height of the cooling mechanism.

[0025] Two second electric telescopic rods 12 are respectively set on the upper and lower parts of the support plate 11, and simultaneously apply driving force to the upper and lower ends of the straightening frame 13. This ensures that the straightening frame 13 remains horizontal and evenly stressed during extension and retraction, avoiding the straightening frame 13 from tilting or jamming that may be caused by unilateral drive. It also ensures the consistency of the fit between each straightening contact block 14 and the surface of the casting, and improves the straightening accuracy.

[0026] like Figures 5-8 As shown: The drive mechanism includes a housing 15, a drive motor 16, a drive screw 17, a stabilizing block 18, a stabilizing rod 19, and a lifting block 20. The housing 15 is installed on the lower part of one side of the connecting frame 6. The drive motor 16 is connected to the lower end of the inner wall of the housing 15. The output end of the drive motor 16 extends through to the top of the housing 15 and is connected to the drive screw 17. Stabilizing blocks 18 are connected to the upper parts of both sides of the connecting frame 6. After the drive motor 16 starts, it drives the drive screw 17 to rotate synchronously. The upper end of the drive screw 17 is axially limited and radially supported by the stabilizing block 18 to ensure that the drive screw 17 remains vertically stable during rotation. The housing 15 plays a role in fixing and protecting the drive motor 16, preventing impurities in the die-casting environment from entering and affecting the operation of the motor.

[0027] The upper end of the drive screw 17 is connected to the lower end of one of the stabilizers 18, and the lower end of the other stabilizer 18 is connected to a stabilizer 19. The upper part of the outer wall of the stabilizer 19 is slidably connected to the upper part of the outer wall of the drive screw 17, and the outer wall of the drive screw 17 is threadedly connected to the corresponding lifter 20. Both lifters 20 extend through one side into the interior of the connecting frame 6. When the drive screw 17 rotates, since the drive screw 17 and the lifting block 20 are connected by a thread, and the lifting block 20 is constrained by the circumferential direction of the stabilizer 19 and cannot rotate, the lifting block 20 moves vertically up and down along the axial direction of the drive screw 17. The two lifting blocks 20 extend through into the interior of the connecting frame 6, connect together and drive the lifting plate 21 to move up and down. One of the lifting blocks 20 is threadedly engaged with the drive screw 17 to provide active driving force, and the other lifting block 20 is slidably engaged with the stabilizer 19 to provide guidance and balance.

[0028] The threaded engagement between the drive screw 17 and the lifting block 20 enables precise lifting displacement control. The stabilizer 19 guides the lifting block 20 on the other side, forming a double-column support structure with the drive screw 17. This ensures that the lifting plate 21 experiences balanced force and smooth movement during lifting, effectively preventing tilting or jamming during the lifting process.

[0029] like Figure 6 and Figure 7 As shown: The cooling mechanism includes a connecting pipe 22, a cooling nozzle 23, and an air supply pipe 24. The lower end of the connecting pipe 22 is connected to the middle of the upper end of the lifting plate 21 through a fixing block. Both ends of the connecting pipe 22 are located on one side of the lifting plate 21. The cooling nozzle 23 is connected to one side of the connecting pipe 22. The air supply pipe 24 is connected to the upper end of the connecting pipe 22. One end of the air supply pipe 24 extends through to one side of the connecting frame 6. The middle part of the air supply pipe 24 is a flexible pipe. The end of the air supply pipe 24 away from the connecting pipe 22 is connected to an external cooling gas supply device. External cooling gas enters the connecting pipe 22 through the gas supply pipe 24, and is then distributed to the cooling nozzle 23 by the connecting pipe 22. The cooling nozzle 23 sprays the cooling gas evenly onto the surface of the casting being shaped on the punch 1, and performs overall cooling while shaped and pressure-holding. When the lifting plate 21 moves up and down, the flexible pipe section in the middle of the gas supply pipe 24 bends and extends freely with the lifting action to ensure that the cooling gas is always supplied smoothly. The cooling mechanism introduces external cooling gas through the gas supply pipe 24, and sprays it evenly over a large area onto the surface of the casting through the cooling nozzle 23, so as to achieve overall gentle cooling of the large battery casing casting and avoid the problems of excessive temperature difference and uneven shrinkage caused by local fixed-point cooling.

[0030] like Figures 5-8As shown: There are two fixed plates 25. The lower ends of the two fixed plates 25 are respectively connected to the upper two sides of the lifting plate 21. A third electric telescopic rod 26 is connected to the middle of one side of the two fixed plates 25. The output ends of the two third electric telescopic rods 26 extend through to one side of the two fixed plates 25. The output ends of the two third electric telescopic rods 26 are connected to moving blocks. The lower ends of the two moving blocks are connected to the upper two sides of the fixed frame 27. Driven by the drive mechanism, the lifting plate 21 slides up and down along the inner wall of the connecting frame 6 via the lifting block 20. Since the fixed plate 25, the third electric telescopic rod 26, the moving block, the fixed frame 27, the adjusting pipe 28, and the cleaning nozzle 29 are all fixedly connected to the lifting plate 21 via the fixed plate 25, all components of the cleaning mechanism rise and fall synchronously with the lifting plate 21. When the cleaning process starts, the two third electric telescopic rods 26 extend synchronously, and their output ends push the moving block to move towards the concave mold 2. The moving block drives the fixed frame 27 and the adjusting pipe 28 and the cleaning nozzle 29 installed in the fixed frame 27 to move towards the concave mold 2 synchronously, so that the cleaning nozzle 29 reaches the preset cleaning working position. After the cleaning is completed, the two third electric telescopic rods 26 retract synchronously, driving the fixed frame 27 back to the standby position. The cleaning mechanism is installed on the upper end of the lifting plate 21, realizing the synchronous lifting of the cleaning mechanism and the cooling mechanism. This allows the height of the cleaning nozzle 29 to be flexibly adjusted according to the position of the die 2. It is highly versatile and can be adapted to molds of different specifications. The lifting and forward / backward movements are independent of each other and do not interfere with each other, allowing for coarse adjustment of the height position and fine adjustment of the spray distance.

[0031] like Figure 9 As shown: A fixed tube 30 is connected to one side of the connecting frame 6. The upper part of one side of the connecting frame 6 is connected to one end of the fixed tube 30 through an L-shaped block. One end of the fixed tube 30 extends through into the interior of the fixed frame 27. The interior of the fixed tube 30 is a flexible tube. One end of the fixed tube 30 is connected to a rotating joint 31. One end of the rotating joint 31 is connected to one end of the adjusting tube 28. The end of the fixed tube 30 away from the rotating joint 31 is connected to an external compressed air supply device. After the external high-pressure gas enters through the fixed pipe 30, it is delivered to the adjusting pipe 28 through the rotating joint 31, and then distributed to each cleaning nozzle 29 by the adjusting pipe 28. When the drive mechanism drives the lifting plate 21 to raise and lower the entire cleaning mechanism, the flexible pipe section inside the fixed pipe 30 bends and extends accordingly to adapt to the height change of the cleaning mechanism. When the third electric telescopic rod 26 drives the fixed frame 27 to move forward and backward, the flexible pipe section inside the fixed pipe 30 bends at the same time to adapt to the front and rear position change of the fixed frame 27. When the adjusting pipe 28 rotates around the rotating rod under the drive of the toggle mechanism, the rotating joint 31 keeps the connection between the fixed pipe 30 and the adjusting pipe 28 unobstructed and does not affect the rotational freedom of the adjusting pipe 28.

[0032] like Figure 10As shown: The actuating mechanism includes a connecting plate 32, an adjusting rod 33, a rotating seat 34, a rotating block 35, a fourth electric telescopic rod 36, and a mounting block 37. The connecting plate 32 is connected to the middle of the outer wall of the rotating rod. The adjusting rod 33 is connected to the middle of one side of the connecting plate 32. The rotating seat 34 is connected to the lower end of the adjusting rod 33. The rotating block 35 is rotatably connected inside the rotating seat 34. The fourth electric telescopic rod 36 is connected to the middle of the lower end of the rotating block 35. The mounting block 37 is connected to the fixed frame 27 at the position corresponding to the fourth electric telescopic rod 36. The mounting block 37 is L-shaped. The upper end of the mounting block 37 is connected to the lower end of the fourth electric telescopic rod 36. When it is necessary to adjust the spray angle of the cleaning nozzle 29, the fourth electric telescopic rod 36 is activated, and its output end extends upward or retracts downward, driving the rotating block 35 to move up and down. The rotating block 35 drives the adjusting rod 33 to rotate around the axis of the rotating rod through the rotating seat 34. The adjusting rod 33 drives the rotating rod to rotate synchronously through the connecting plate 32. The rotating rod then drives the adjusting tube 28 fixed on it to rotate, thereby realizing the adjustment of the spray angle of the cleaning nozzle 29. The continuous reciprocating extension and retraction of the fourth electric telescopic rod 36 can drive the cleaning nozzle 29 to continuously swing up and down and spray, and perform high-pressure blowing on the inner wall of the cavity mold 2 from multiple directions. The actuation mechanism, through the extension and retraction of the fourth electric telescopic rod 36, and the transmission of the rotating seat 34 and the adjusting rod 33, converts linear motion into the rotational swing motion of the adjusting tube 28, thereby realizing the dynamic and continuous adjustment of the spray angle of the cleaning nozzle 29. This allows high-pressure gas to flush the inner wall of the die 2 from multiple directions, effectively eliminating the cleaning dead angles that exist when blowing at a fixed angle, and improving the comprehensiveness and thoroughness of mold cleaning.

[0033] It should be noted that all electric telescopic rods and drive motors 16 in this invention are mounted on the connecting frame 6 and the fixing frame 27, maintaining a certain safe distance from the surface of the high-temperature casting and the mold cavity. Moreover, the ambient temperature has dropped significantly after the mold is opened, so commercially available high-temperature resistant models can meet the usage requirements. In addition, the specific circuit connections and control methods of the drive motor 16, the first electric telescopic rod 8, the second electric telescopic rod 12, the third electric telescopic rod 26, the fourth electric telescopic rod 36, the adjusting slide rail 4, and the adjusting slider 5, etc., of the actuators and control elements involved in this invention are all conventional technical means in the field. Those skilled in the art can select appropriate models and perform conventional circuit design according to actual needs, and their specific working principles will not be elaborated here.

[0034] Working principle: After the die casting machine completes the die casting, the concave mold 2 and the punch 1 open horizontally to both sides. The casting stays on one side of the punch 1. The adjusting slider 5 slides along the adjusting slide rail 4, which drives the connecting frame 6 to move from the standby position to the working area between the punch 1 and the concave mold 2, so that the straightening mechanism is aligned with the casting on the side of the punch 1 and the cleaning mechanism is aligned with the side of the concave mold 2.

[0035] The first electric telescopic rod 8 is activated, and its output end pushes the adjustment plate 9, which drives the two stabilizing rods 10 to extend and insert into the original guide groove below the punch 1, so that the connecting frame 6 is relatively fixed with the punch 1. The two second electric telescopic rods 12 extend synchronously, pushing the straightening frame 13 to move horizontally towards the punch 1, so that the multiple straightening contact blocks 14 on the straightening frame 13 simultaneously contact and press the multiple deformation hot spots of the casting, applying straightening pressure to the casting from the side, and preventing the casting from warping and deforming due to the release of residual stress after hot demolding.

[0036] During the straightening and pressure holding process, the drive motor 16 starts and drives the lifting block 20 to slide up and down along the stabilizing rod 19 through the drive screw 17. The lifting plate 21 rises and falls to the preset height. Cooling gas enters the connecting pipe 22 through the gas supply pipe 24 and is sprayed evenly over a large area onto the surface of the casting through the cooling nozzle 23. While straightening and pressure holding, the casting is cooled gently as a whole, so that the temperature of the casting drops evenly and avoids excessive local temperature difference that could lead to new deformation. After the straightening and pressure holding time is reached, the second electric telescopic rod 12 retracts, driving the straightening frame 13 back to its original position.

[0037] Subsequently, the third electric telescopic rod 26 extends synchronously, pushing the fixed frame 27 to move towards the cavity mold 2, so that the cleaning nozzle 29 is close to the inner wall of the cavity mold 2. High-pressure gas enters the adjusting pipe 28 through the fixed pipe 30 and is sprayed out by the cleaning nozzle 29. At the same time, the fourth electric telescopic rod 36 continues to reciprocate, and through the transmission of the rotating block 35, the rotating seat 34 and the adjusting rod 33, it drives the adjusting pipe 28 to swing up and down around the rotating rod, so that the cleaning nozzle 29 blows the inner wall of the cavity mold 2 with high pressure from multiple angles, blowing away the residual mold release agent, aluminum chips and oxides and other impurities from the surface of the cavity mold 2.

[0038] After cleaning, the third electric telescopic rod 26 retracts, causing the fixed frame 27 to return to its original position. The cleaning nozzle 29 stops supplying air, the first electric telescopic rod 8 retracts, causing the stabilizing rod 10 to exit from the guide groove. The adjusting slider 5 slides along the adjusting slide rail 4, causing the connecting frame 6 to return to the standby position, completing the entire post-processing cycle and waiting for the next die casting.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A die-casting mold for a new energy vehicle battery casing, characterized in that, It includes a punch (1), a die (2), and a processing mechanism. The die (2) is provided on one side of the punch (1). The processing mechanism is installed between the punch (1) and the die (2). The processing mechanism includes an adjustment mechanism, a straightening mechanism, and a cleaning mechanism. The adjustment mechanism includes a connecting frame (3), an adjustment slide rail (4), an adjustment slider (5), and a connecting frame (6). The connecting frame (3) is located between the punch (1) and the die (2). The lower middle part of the connecting frame (3) is connected to the adjustment slide rail (4). The adjustment slider (5) is slidably connected below the adjustment slide rail (4). The connecting frame (6) is installed below the adjustment slider (5) through a connecting block. The correction mechanism is installed inside the connecting frame (6) on one side and aligned with the punch (1). The cleaning mechanism is installed on the other side of the connecting frame (6) and aligned with the die (2). The correction mechanism includes a stabilizing mechanism, a support plate (11), a second electric telescopic rod (12), a correction frame (13), correction contact blocks (14), a driving mechanism, a lifting plate (21), and a cooling mechanism. Each side of the correction frame (13) is connected to a correction contact block (14), and one side of each correction contact block (14) contacts the casting on one side of the punch (1). The cleaning mechanism includes a fixed plate (25), a third electric telescopic rod (26), a fixed frame (27), an adjusting pipe (28), a cleaning nozzle (29), a fixed pipe (30), a rotating joint (31), and a toggle mechanism. The toggle mechanism is used to adjust the angle position of the adjusting pipe (28). The adjusting pipe (28) is rotatably connected to one side of the inner wall of the fixed frame (27) via a rotating rod. The cleaning nozzle (29) is connected to one side of the adjusting pipe (28).

2. The die-casting mold for a new energy vehicle battery casing according to claim 1, characterized in that, The stabilizing mechanism includes a connecting plate (7), a first electric telescopic rod (8), an adjusting plate (9), and a stabilizing rod (10). The lower end of the connecting plate (7) is connected to the middle of the lower end of the inner wall of the connecting frame (6). The two ends of the connecting plate (7) are connected to the two sides of the inner wall of the connecting frame (6). The middle of the upper end of the connecting plate (7) is connected to the lower end of the support plate (11). The middle of one side of the connecting plate (7) is connected to the first electric telescopic rod (8). The output end of the first electric telescopic rod (8) extends through to one side of the connecting plate (7) and is connected to the adjusting plate (9). The adjusting plate (9) is connected to one side of each of the two stabilizing rods (10). There are two stabilizing rods (10). The two stabilizing rods (10) are located in the two guide grooves below one side of the punch (1). The shape of the two stabilizing rods (10) is adapted to the shape of the corresponding guide groove.

3. The die-casting mold for a new energy vehicle battery casing according to claim 1, characterized in that, The upper middle part of the stabilizing mechanism is connected to a support plate (11). The upper end of the support plate (11) is connected to the upper end of the inner wall of the connecting frame (6). The upper and lower parts of one side of the support plate (11) are provided with mounting holes. The two mounting holes are each embedded with a second electric telescopic rod (12). The output ends of the two second electric telescopic rods (12) are connected to the upper and lower parts of one side of the correction frame (13). The two sides of the connecting frame (6) are connected to a driving mechanism. The inner wall of the connecting frame (6) is slidably connected to a lifting plate (21) on the side corresponding to the support plate (11). The upper end of the lifting plate (21) is connected to a cooling mechanism.

4. The die-casting mold for a new energy vehicle battery casing according to claim 1, characterized in that, The drive mechanism includes a housing (15), a drive motor (16), a drive screw (17), a stabilizing block (18), a stabilizing rod (19), and a lifting block (20). The housing (15) is installed on the lower part of one side of the connecting frame (6). The lower end of the inner wall of the housing (15) is connected to the drive motor (16). The output end of the drive motor (16) extends through to the top of the housing (15) and is connected to the drive screw (17). The upper parts of both sides of the connecting frame (6) are connected to the stabilizing blocks (18).

5. A die-casting mold for a new energy vehicle battery casing according to claim 4, characterized in that, The upper end of the drive screw (17) is connected to the lower end of one of the stabilizing blocks (18), and the lower end of the other stabilizing block (18) is connected to a stabilizing rod (19). The upper part of the outer wall of the stabilizing rod (19) is slidably connected to the upper part of the outer wall of the drive screw (17) with a lifting block (20). The outer wall of the drive screw (17) is threadedly connected to the corresponding lifting block (20). Both lifting blocks (20) extend through one side into the interior of the connecting frame (6).

6. The die-casting mold for a new energy vehicle battery casing according to claim 1, characterized in that, The cooling mechanism includes a connecting pipe (22), a cooling nozzle (23), and an air supply pipe (24). The lower end of the connecting pipe (22) is connected to the middle of the upper end of the lifting plate (21) through a fixing block. Both ends of the connecting pipe (22) are located on one side of the lifting plate (21). The cooling nozzle (23) is connected to one side of the connecting pipe (22). The air supply pipe (24) is connected to one side of the upper end of the connecting pipe (22). One end of the air supply pipe (24) extends through to one side of the connecting frame (6). The middle part of the air supply pipe (24) is a flexible pipe.

7. The die-casting mold for a new energy vehicle battery casing according to claim 1, characterized in that, There are two fixed plates (25). The lower ends of the two fixed plates (25) are respectively connected to the upper sides of the lifting plate (21). A third electric telescopic rod (26) is connected to the middle of one side of the two fixed plates (25). The output ends of the two third electric telescopic rods (26) extend through to one side of the two fixed plates (25). The output ends of the two third electric telescopic rods (26) are connected to moving blocks. The lower ends of the two moving blocks are connected to the upper sides of the fixed frame (27).

8. A die-casting mold for a new energy vehicle battery casing according to claim 1, characterized in that, A fixing tube (30) is connected to one side of the connecting frame (6). One end of the fixing tube (30) extends through into the interior of the fixing frame (27). The interior of the fixing tube (30) is a flexible tube. One end of the fixing tube (30) is connected to a rotating joint (31). One end of the rotating joint (31) is connected to one end of the adjusting tube (28).

9. A die-casting mold for a new energy vehicle battery casing according to claim 8, characterized in that, The actuating mechanism includes a connecting plate (32), an adjusting rod (33), a rotating seat (34), a rotating block (35), a fourth electric telescopic rod (36), and a mounting block (37). The connecting plate (32) is connected to the middle of the outer wall of the rotating rod. The adjusting rod (33) is connected to the middle of one side of the connecting plate (32). The rotating seat (34) is connected to the lower end of the adjusting rod (33). The rotating block (35) is rotatably connected inside the rotating seat (34). The fourth electric telescopic rod (36) is connected to the middle of the lower end of the rotating block (35). The mounting block (37) is connected to the fixed frame (27) at the position corresponding to the fourth electric telescopic rod (36). The mounting block (37) is L-shaped. The upper end of the mounting block (37) is connected to the lower end of the fourth electric telescopic rod (36).

Images