Die-casting device for connecting and fixing automobile battery pack cooling system

Abstract

The application discloses a die-casting device for an automobile battery pack cooling system connecting fixing piece, and belongs to the technical field of die-casting devices.The die-casting device for the automobile battery pack cooling system connecting fixing piece comprises a fixed workbench, a supporting frame is fixedly installed on the upper end of the workbench, a connecting beam is fixedly installed on the upper end of the supporting frame, sliding rods are symmetrically and fixedly connected between the connecting beam and the workbench, a lower die-casting assembly is slidably arranged on the workbench, positioning and locking assemblies are respectively fixedly installed in locking grooves, and an upper die-casting assembly is arranged below the connecting beam.The die-casting device is characterized in that a die-cutting assembly is integrated in a lower die, so that die-cutting blades are synchronously stretched upwards during the die-casting process, the flash, burrs and gate residual materials generated on the parting surface edges of the die-castings are cut off on line, the degree of automation of the device is improved, and the die-casting production efficiency and product qualification rate of the automobile battery pack cooling system connecting fixing piece are comprehensively improved.

Description

Technical Field

[0001] This invention belongs to the field of die-casting equipment technology, specifically relating to a die-casting device for connecting fasteners of an automotive battery pack cooling system. Background Technology

[0002] With the rapid development of the new energy vehicle industry, battery pack thermal management systems have become a crucial component in ensuring vehicle safety and range performance. Cooling system connectors, as core metal structural parts within the battery pack used to secure cooling pipes and connect various cooling modules, directly affect the sealing and reliability of the cooling system due to their dimensional accuracy, structural strength, and surface quality. Currently, these connectors are mostly formed using die casting, with aluminum alloy as the main raw material. Molten metal is injected into a mold cavity under high pressure and rapidly cooled to obtain the finished product.

[0003] In traditional die-casting equipment, the lower mold is usually pushed to the bottom of the upper mold by a hydraulic cylinder, and its positioning is achieved by manual visual inspection or additional sensors. Because the cooling system's connecting and fixing components are small in size and complex in structure, even a slight misalignment during mold closing can lead to uneven product wall thickness, increased flash, or even core damage, affecting molding quality and mold life.

[0004] Furthermore, after the connecting fasteners are die-cast, there are often residual material heads, flash, and burrs at the gate position and parting surface edge, requiring additional trimming processes for secondary processing. This increases the production process and equipment investment, and reduces overall production efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a die-casting device for connecting fasteners of automotive battery pack cooling system.

[0006] The technical solution adopted to solve the above-mentioned technical problems is: a die-casting device for connecting fasteners of an automotive battery pack cooling system, including a fixed work frame, a feeding trough fixedly installed on one side of the upper end of the fixed work frame, the other end of the feeding trough fixedly connected to a worktable, a fixed base fixedly connected to the lower end of the worktable, a sliding groove opened on the upper surface of the feeding trough, a support frame fixedly installed on the upper end of the worktable, a connecting beam fixedly installed on the upper end of the support frame, sliding rods symmetrically fixedly connected between the connecting beam and the worktable, and a lower die-casting assembly slidably arranged on the worktable; the lower die-casting assembly includes a sliding seat slidably connected to the sliding groove, a limit plate fixedly connected to the lower surface of the sliding seat, a lower fixing plate fixedly connected to the upper surface of the sliding seat, locking grooves symmetrically opened on both sides of the lower fixing plate, positioning and locking components fixedly installed in the locking grooves respectively, and an upper die-casting assembly arranged below the connecting beam.

[0007] Through the above technical solution, the positioning and locking component emits audible feedback through mechanical engagement, and in conjunction with magnetic locking, it achieves precise positioning confirmation of the two key work stations of mold closing and mold release, and can work reliably without the need for sensors.

[0008] Preferably, a first hydraulic cylinder is fixedly connected to one side of the fixed work frame, and a telescopic rod is slidably connected to the output end of the first hydraulic cylinder. One end of the telescopic rod is fixedly connected to the sliding seat, and a lower fixing plate is fixedly connected to the upper end of the sliding seat. A lower die is fixedly installed on the upper end of the lower fixing plate.

[0009] Using the above technical solution, the first hydraulic cylinder is activated, and the output end of the first hydraulic cylinder drives the telescopic rod to extend, causing the sliding seat to slide along the slide groove towards the worktable. The sliding seat then drives the lower fixed plate and the lower die to move downwards from the die-casting assembly.

[0010] Preferably, a first mounting groove is provided in the lower die, and second mounting grooves are symmetrically provided on both sides of the first mounting groove. The first mounting groove and the second mounting groove are interconnected, and a die-cutting assembly is provided in the first mounting groove.

[0011] Preferably, the die-cutting assembly includes a casting blade that is slidably connected to the first mounting groove. A tool holder is fixedly installed at the lower end of the casting blade. The casting blade and the tool holder are integrally formed. A pressing block is slidably connected in the second mounting groove. A moving block is slidably connected to the other side of the pressing block. A slider plate is fixedly installed at the lower end of the moving block. A return spring is fixedly connected to one end of the slider plate. The other end of the return spring is fixedly connected to the lower die.

[0012] With the above technical solution, after die casting is completed, the second hydraulic cylinder drives the upper die to rise and reset, the reset spring pushes the slider plate to drive the moving block to reset, the pressing block returns to its original position, and the cutting blade retracts into the first mounting groove, completing the online removal of flash for one die casting cycle.

[0013] Preferably, the lower end of the knife holder is wedge-shaped, the two ends of the pressing block are symmetrically wedge-shaped, and the lower end of the moving block is wedge-shaped.

[0014] With the above technical solution, since the two ends of the pressing block are symmetrically wedge-shaped, it transmits horizontal thrust to the moving block while moving downward. The lower end of the moving block is wedge-shaped, and the wedge-shaped engagement pushes the knife holder to slide upward.

[0015] Preferably, the positioning and locking assembly includes a mounting shaft fixedly connected to the locking groove, a connecting sleeve sleeved on the outer side of the mounting shaft, a rotatable connection between the mounting shaft and the connecting sleeve, a torsion spring sleeved between the mounting shaft and the connecting sleeve, a locking rod fixedly connected to the outer side of the connecting sleeve, a limit block provided on the inner side of the locking groove, and one end of the locking rod being arc-shaped.

[0016] With the above technical solution, since one end of the locking rod is arc-shaped and the connecting sleeve and the mounting shaft are connected by a torsion spring, the locking rod is squeezed and drives the connecting sleeve to overcome the resistance of the torsion spring and rotate at a small angle, thus smoothly passing through the first limit block.

[0017] Preferably, support blocks are symmetrically arranged on both sides of the lower fixing plate, and the lower fixing plate is fixedly connected to the support blocks. A first limiting block is fixedly connected to one end of the support block, and a second limiting block is fixedly connected to the other end of the support block. A first magnetic pole is arranged inside the locking groove, and the first magnetic pole is fixedly installed between the locking groove and the locking rod. A second magnetic pole is arranged inside the locking rod, and the second magnetic pole is fixedly installed between the locking rod and the inner side of the locking rod.

[0018] With the above technical solution, when the locking rod slides to the second limiting block on the support block, it is blocked by the second limiting block and rotates inward. Since the squeezing angle of the second limiting block on the locking rod is greater than that of the first limiting block, the rotation angle of the locking rod becomes larger, so that the second magnetic pole fixedly installed on the inner side of the locking rod is close enough to the first magnetic pole on the inner side of the locking groove. Under the action of magnetic attraction, the locking rod is further drawn into the locking groove and kept in the retracted state, completing the feedback of the work position.

[0019] Preferably, the upper die-casting assembly includes a second hydraulic cylinder fixedly installed between it and the upper crossbeam. The output end of the second hydraulic cylinder is fixedly connected to a movable mounting base. Positioning blocks are symmetrically fixedly installed on both sides of the movable mounting base. The positioning blocks are slidably connected to the slide rods. An upper fixing plate is fixedly installed on the lower surface of the movable mounting base. An upper die is provided inside the upper fixing plate. Mounting columns are fixedly connected to the four corners of the movable mounting base. Buffer seats are slidably connected to the mounting columns. A mounting spring is fixedly sleeved on the side of the buffer seat near the movable mounting base. The end of the mounting spring away from the buffer seat is fixedly connected to the movable mounting base. Positioning cylinders are respectively provided at the upper end of the fixed work frame corresponding to the positions of the mounting columns. The positioning cylinders are fixedly installed to the upper end of the fixed work frame and are slidably connected to the mounting columns.

[0020] With the above technical solution, after the mold closing and positioning are completed, the second hydraulic cylinder is activated. The output end of the second hydraulic cylinder pushes the movable mounting seat to move downward along the slide rod. The upper fixed plate on the lower surface of the movable mounting seat drives the upper and lower concave molds to fit together, realizing mold closing and die casting. During this process, the mounting columns at the four corners of the movable mounting seat move downward synchronously. The buffer seats at the ends of the mounting columns contact the surface of the lower fixed plate before the upper concave mold. The mounting springs are compressed, which plays a role in buffering and shock absorption, avoiding damage to the mold cavity by the impact force of mold closing. At the same time, the lower end of the mounting column is inserted into the positioning cylinder at the upper end of the fixed work frame, further ensuring the accuracy of the mold closing position.

[0021] The beneficial effects of this invention are as follows: (1) By designing a positioning and locking component, the present invention utilizes the mechanical engagement between the locking rod and the first limiting block, combined with the elastic reset of the torsion spring, to achieve precise alignment between the lower die-casting component and the upper die-casting component. When the locking rod passes the first limiting block, it emits a crisp sound indicating that it has reached its position. The operator can accurately determine the mold closing position based on this, without relying on visual inspection or complex sensors, which greatly simplifies the positioning operation and ensures the coaxiality and mold closing accuracy of the upper and lower molds before each die-casting, thereby effectively improving the dimensional consistency and molding quality of the connecting fasteners.

[0022] (2) This invention integrates a cutting component in the lower die and uses the natural motion of the upper die pressing and closing to drive the wedge linkage between the pressing block, the moving block and the cutter holder, so that the cutting blade extends upward synchronously during the die casting process to remove the flash, burrs and gate residue generated on the edge of the die casting part. The device combines the die casting and cutting processes into one, without the need for additional independent cutting equipment or secondary clamping, which improves the automation level of the device, reduces the skill requirements and labor intensity of the operators, and comprehensively improves the die casting production efficiency and product qualification rate of the connecting fasteners of the automotive battery pack cooling system.

[0023] (3) By setting a second limiting block in conjunction with the magnetic attraction locking structure of the first magnetic pole and the second magnetic pole, the present invention realizes the arrival feedback and automatic locking of the demolding station. The locking rod rotates to the magnetic pole contact position under the pressure of the second limiting block and is kept in the retracted state by magnetic force. This provides the operator with a clear station arrival signal, avoids the problem of difficult part removal caused by insufficient or excessive pushing, and improves the convenience and efficiency of demolding and part removal. Attached Figure Description

[0024] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention; Figure 3 This is a first-view perspective three-dimensional structural diagram of the workbench of the present invention; Figure 4 This is a second-view perspective three-dimensional structural diagram of the worktable of the present invention; Figure 5 This is a three-dimensional structural diagram of the die-casting component of the present invention; Figure 6 This is a three-dimensional structural diagram of the positioning and locking component of the present invention; Figure 7 This is a cross-sectional view of the connecting sleeve of the present invention; Figure 8 This is a cross-sectional view of the lower die of the present invention; Figure 9 This is the present invention. Figure 8A magnified view of a portion of point A in the middle.

[0025] Reference numerals: 1. Fixed work frame; 11. Feed chute; 12. Slide chute; 13. Fixed base; 14. Worktable; 15. Support frame; 16. Connecting beam; 17. Slide rod; 18. Positioning cylinder; 2. Lower die-casting assembly; 20. First hydraulic cylinder; 21. Telescopic rod; 22. Limiting plate; 23. Sliding seat; 24. Lower fixed plate; 25. Lower die; 26. Locking groove; 27. First mounting groove; 28. Second mounting groove; 3. Positioning and locking assembly; 30. Mounting shaft; 31. Connecting sleeve; 32. 33. Torsion spring; 34. Locking rod; 35. Support block; 36. First limiting block; 37. Second limiting block; 38. First magnetic pole; 49. Second magnetic pole; 40. Upper die-casting assembly; 41. Movable mounting base; 42. Positioning block; 43. Upper fixing plate; 44. Upper die cavity; 45. Mounting column; 46. Buffer seat; 47. Mounting spring; 58. Second hydraulic cylinder; 59. Die-cutting assembly; 50. Die-cutting blade; 51. Tool holder; 52. Moving block; 53. Pressing block; 54. Sliding plate; 55. Return spring. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0027] like Figures 1-4 As shown, this embodiment of a die-casting device for a connecting fastener of an automotive battery pack cooling system includes a fixed work frame 1. A feeding trough 11 is fixedly installed on one side of the upper end of the fixed work frame 1. The other end of the feeding trough 11 is fixedly connected to a worktable 14. A fixed base 13 is fixedly connected to the lower end of the worktable 14. A sliding groove 12 is provided on the upper surface of the feeding trough 11. A support frame 15 is fixedly installed on the upper end of the worktable 14. A connecting beam 16 is fixedly installed on the upper end of the support frame 15. Sliding rods 17 are symmetrically fixedly connected between the connecting beam 16 and the worktable 14. A lower sliding rod is slidably arranged on the worktable 14. Die-casting component 2; The lower die-casting component 2 includes a sliding seat 23 that is slidably connected to the slide groove 12. A limit plate 22 is fixedly connected to the lower surface of the sliding seat 23, and a lower fixing plate 24 is fixedly connected to the upper surface of the sliding seat 23. Locking grooves 26 are symmetrically opened on both sides of the lower fixing plate 24. Positioning and locking components 3 are fixedly installed in the locking grooves 26 respectively. An upper die-casting component 4 is set below the connecting beam 16. The positioning and locking components 3 emit sound feedback through mechanical locking and magnetic locking, realizing the precise positioning confirmation of the two key stations of mold closing and mold demolding. It can work reliably without sensors.

[0028] like Figures 1-8As shown, a first hydraulic cylinder 20 is fixedly connected to one side of the fixed work frame 1. A telescopic rod 21 is slidably connected to the output end of the first hydraulic cylinder 20. One end of the telescopic rod 21 is fixedly connected to the sliding seat 23. A lower fixed plate 24 is fixedly connected to the upper end of the sliding seat 23. A lower die 25 is fixedly installed on the upper end of the lower fixed plate 24. When the first hydraulic cylinder 20 is started, the output end of the first hydraulic cylinder 20 drives the telescopic rod 21 to extend, causing the sliding seat 23 to slide along the slide groove 12 towards the worktable 14. The sliding seat 23 causes the lower fixed plate 24 and the lower die 25 to move downwards from the upper die-casting assembly 4. A first mounting groove 27 is provided in the lower die 25. Second mounting grooves 28 are symmetrically provided on both sides of the first mounting groove 27. The first mounting groove 27 and the second mounting groove 28 are interconnected. A die-cutting assembly 5 is provided in the first mounting groove 27.

[0029] like Figures 1-9 As shown, the die-cutting assembly 5 includes a die-cutting blade 50 slidably connected to the first mounting groove 27. A tool holder 51 is fixedly mounted on the lower end of the die-cutting blade 50, and the die-cutting blade 50 and the tool holder 51 are integrally formed. A pressing block 53 is slidably connected in the second mounting groove 28, and a moving block 52 is slidably connected on the other side of the pressing block 53. A slider plate 54 is fixedly mounted on the lower end of the moving block 52. A return spring 55 is fixedly connected to one end of the slider plate 54, and the other end of the return spring 55 is fixedly connected to the lower die 25. After die casting is completed, the second liquid... The pressure cylinder 47 drives the upper die 43 to rise and reset. The reset spring 55 pushes the slider plate 54 to drive the moving block 52 to reset. The pressing block 53 returns to its original position. The cutting blade 50 retracts into the first mounting groove 27, completing the online removal of flash for one die casting cycle. The lower end of the tool holder 51 is wedge-shaped. The two ends of the pressing block 53 are symmetrically wedge-shaped. The lower end of the moving block 52 is wedge-shaped. While moving downward, it transmits horizontal thrust to the moving block 52. The lower end of the moving block 52 is wedge-shaped. Through the wedge-shaped engagement, it pushes the tool holder 51 to slide upward.

[0030] like Figures 1-7 As shown, the positioning and locking assembly 3 includes a mounting shaft 30 fixedly connected to the locking groove 26. A connecting sleeve 31 is sleeved on the outside of the mounting shaft 30. The mounting shaft 30 and the connecting sleeve 31 are rotatably connected. A torsion spring 32 is sleeved between the mounting shaft 30 and the connecting sleeve 31. A locking rod 33 is fixedly connected to the outside of the connecting sleeve 31. A limit block is provided inside the locking groove 26. One end of the locking rod 33 is arc-shaped. Because one end of the locking rod 33 is arc-shaped, and the connecting sleeve 31 and the mounting shaft 30 are rotatably connected by the torsion spring 32, the locking rod 33 is squeezed and drives the connecting sleeve 31 to overcome the resistance of the torsion spring 32 and rotate at a small angle, thus smoothly passing through the first limit block 35.

[0031] like Figures 1-8As shown, support blocks 34 are symmetrically arranged on both sides of the lower fixing plate 24. The lower fixing plate 24 and the support blocks 34 are fixedly connected. A first limiting block 35 is fixedly connected to one end of the support block 34, and a second limiting block 36 is fixedly connected to the other end of the support block 34. A first magnetic pole 37 is arranged inside the locking groove 26 and is fixedly installed between the first magnetic pole 37 and the locking groove 26. A second magnetic pole 38 is arranged inside the locking rod 33 and is fixedly installed between the second magnetic pole 38 and the inner side of the locking rod 33. When the locking rod 3... When the 3rd rod slides to the second limiting block 36 on the support block 34, it is blocked by the second limiting block 36 and rotates inward. Since the pressing angle of the second limiting block 36 on the locking rod 33 is greater than that of the first limiting block 35, the rotation angle of the locking rod 33 becomes larger, so that the second magnetic pole 38 fixedly installed on the inner side of the locking rod 33 is close enough to the first magnetic pole 37 on the inner side of the locking groove 26. Under the action of magnetic attraction, the locking rod 33 is further drawn into the locking groove 26 and remains in the retracted state, completing the feedback of the work position.

[0032] like Figures 1-4 As shown, the upper die-casting assembly 4 includes a second hydraulic cylinder 47 fixedly installed between the upper crossbeam 16 and the output end of the second hydraulic cylinder 47, which is fixedly connected to the movable mounting base 40. Positioning blocks 41 are symmetrically fixedly installed on both sides of the movable mounting base 40, and the positioning blocks 41 are slidably connected to the slide rod 17. An upper fixing plate 42 is fixedly installed on the lower surface of the movable mounting base 40, and an upper die 43 is provided inside the upper fixing plate 42. Mounting columns 44 are fixedly connected to the four corners of the movable mounting base 40, and buffer seats 45 are slidably connected to the mounting columns 44. A mounting spring 46 is fixedly sleeved on the side of the buffer seat 45 near the movable mounting base 40, and the end of the mounting spring 46 away from the buffer seat 45 is fixedly connected to the movable mounting base 40. Positioning cylinders are respectively provided at the upper end of the fixed work frame 1 at the positions corresponding to the mounting columns 44. 18. The positioning cylinder 18 is fixedly installed on the upper end of the fixed work frame 1. The positioning cylinder 18 is slidably connected to the mounting column 44. After the mold closing and positioning are completed, the second hydraulic cylinder 47 is started. The output end of the second hydraulic cylinder 47 pushes the movable mounting seat 40 to move downward along the slide rod 17. The upper fixed plate 42 on the lower surface of the movable mounting seat 40 drives the upper cavity mold 43 to fit with the lower cavity mold 25, realizing mold closing and die casting. During this process, the mounting columns 44 at the four corners of the movable mounting seat 40 move downward synchronously. The buffer seat 45 at the end of the mounting column 44 contacts the surface of the lower fixed plate 24 before the upper cavity mold 43. The mounting spring 46 is compressed, which plays a buffer and shock absorption role to avoid damage to the mold cavity by the impact force of mold closing. At the same time, the lower end of the mounting column 44 is inserted into the positioning cylinder 18 at the upper end of the fixed work frame 1 to further ensure the accuracy of the mold closing position.

[0033] The working principle of this embodiment is as follows: the raw material to be die-cast enters the workbench 14 area through the feeding groove 11, the first hydraulic cylinder 20 is started, the output end of the first hydraulic cylinder 20 drives the telescopic rod 21 to extend, and drives the sliding seat 23 to slide along the sliding groove 12 towards the workbench 14. The sliding seat 23 drives the lower fixed plate 24 and the lower die 25 to move downwards of the upper die-casting assembly 4. When the locking rods 33 on both sides of the fixed plate 24 slide to contact the first limiting block 35 on the support block 34, the first limiting block 35 and the end of the locking rod 33 press against each other. Since one end of the locking rod 33 is arc-shaped and the connecting sleeve 31 and the mounting shaft 30 are rotatably connected by the torsion spring 32, the locking rod 33 is pressed and drives the connecting sleeve 31 to overcome the resistance of the torsion spring 32 and rotate at a small angle, thus passing smoothly through the first limiting block 35. After passing, the torsion spring 32 releases elastic potential energy and drives the locking rod 33 to rotate back to its original position. One side of the locking rod 33 is in contact with the side wall of the first limiting block 35. Under the action of the limiting block, the rotation angle of the locking rod 33 is restricted. At this time, the locking rod 33 and the first limiting block 35 are engaged, and a crisp sound of being in place is emitted. After hearing the sound, the operator can stop the first hydraulic cylinder 20 and complete the precise alignment between the lower die 25 and the upper die 43. During the die casting process, when the upper die 43 presses down to contact the lower die 25, the pressing block 53 in the second mounting groove 28 inside the lower die 25 is squeezed downward by the edge of the upper die 43. Since the two ends of the pressing block 53 are symmetrically wedge-shaped, it transmits horizontal thrust to the moving block 52 while moving downward. The lower end of the moving block 52 is wedge-shaped, and the wedge-shaped engagement pushes the cutter holder 51 to slide upward. The cutting blade 50, which is integrally connected to the upper end of the cutter holder 51, extends upward from the first mounting groove 27 and simultaneously removes the flash, burrs, and gate residue that are naturally formed after die casting along the parting surface edge of the die casting. After die casting is completed, the second hydraulic cylinder 47 drives the upper die 43 to rise and reset. The reset spring 55 pushes the slider plate 54 to drive the moving block 52 to reset, and the pressing block 53 returns to its position. The cutting blade 50 retracts into the first mounting groove 27, completing the online removal of flash for one die casting cycle. After die casting and trimming are completed, the first hydraulic cylinder 20 continues to drive the telescopic rod 21 to extend, and the lower fixed plate 24 drives the locking rods 33 on both sides to continue to move forward. When the locking rod 33 slides to the second limiting block 36 on the support block 34, it is blocked by the second limiting block 36 and rotates inward. Since the squeezing angle of the second limiting block 36 on the locking rod 33 is greater than that of the first limiting block 35, the rotation angle of the locking rod 33 becomes larger, so that the second magnetic pole 38 fixedly installed on the inner side of the locking rod 33 is close enough to the first magnetic pole 37 on the inner side of the locking groove 26. Under the action of magnetic attraction, the locking rod 33 is further sucked into the locking groove 26 and kept in the retracted state, completing the feedback of the work position. At this time, the operator can confirm that the lower fixed plate 24 has accurately moved to the demolding and feeding position by observing the state of the locking rod 33, which makes it convenient for the staff to recycle the die-cast connecting fasteners, and then load the next set of raw materials to be die-cast, and enter the next cycle.

[0034] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A die-casting device for connecting fasteners of an automotive battery pack cooling system, comprising a fixed work frame (1), characterized in that, A feeding trough (11) is fixedly installed on one side of the upper end of the fixed work frame (1). The other end of the feeding trough (11) is fixedly connected to the worktable (14). A fixed base (13) is fixedly connected to the lower end of the worktable (14). A sliding groove (12) is opened on the upper surface of the feeding trough (11). A support frame (15) is fixedly installed on the upper end of the worktable (14). A connecting beam (16) is fixedly installed on the upper end of the support frame (15). A sliding rod (17) is symmetrically fixedly connected between the connecting beam (16) and the worktable (14). A lower die-casting assembly (2) is slidably arranged on the worktable (14). The lower die-casting assembly (2) includes a sliding seat (23) that is slidably connected to the slide groove (12). A limit plate (22) is fixedly connected to the lower surface of the sliding seat (23). A lower fixing plate (24) is fixedly connected to the upper surface of the sliding seat (23). Locking grooves (26) are symmetrically opened on both sides of the lower fixing plate (24). Positioning and locking assemblies (3) are fixedly installed in the locking grooves (26). An upper die-casting assembly (4) is provided below the connecting beam (16).

2. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 1, characterized in that, A first hydraulic cylinder (20) is fixedly connected to one side of the fixed work frame (1). A telescopic rod (21) is slidably connected to the output end of the first hydraulic cylinder (20). One end of the telescopic rod (21) is fixedly connected to the sliding seat (23). A lower fixed plate (24) is fixedly connected to the upper end of the sliding seat (23). A lower die (25) is fixedly installed on the upper end of the lower fixed plate (24).

3. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 2, characterized in that, The lower die (25) has a first mounting groove (27) and a second mounting groove (28) is symmetrically provided on both sides of the first mounting groove (27). The first mounting groove (27) and the second mounting groove (28) are interconnected. A die-cutting assembly (5) is provided in the first mounting groove (27).

4. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 3, characterized in that, The die-cutting assembly (5) includes a die-cutting blade (50) that is slidably connected to the first mounting groove (27). A cutter holder (51) is fixedly installed at the lower end of the die-cutting blade (50). The die-cutting blade (50) and the cutter holder (51) are integrally formed. A pressing block (53) is slidably connected in the second mounting groove (28). A moving block (52) is slidably connected on the other side of the pressing block (53). A slider plate (54) is fixedly installed at the lower end of the moving block (52). A return spring (55) is fixedly connected at one end of the slider plate (54). The other end of the return spring (55) is fixedly connected to the lower die (25).

5. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 4, characterized in that, The lower end of the knife holder (51) is wedge-shaped, the two ends of the pressing block (53) are symmetrically wedge-shaped, and the lower end of the moving block (52) is wedge-shaped.

6. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 1, characterized in that, The positioning and locking assembly (3) includes a mounting shaft (30) fixedly connected to the locking groove (26), a connecting sleeve (31) sleeved on the outside of the mounting shaft (30), the mounting shaft (30) and the connecting sleeve (31) being rotatably connected, a torsion spring (32) sleeved between the mounting shaft (30) and the connecting sleeve (31), a locking rod (33) fixedly connected on the outside of the connecting sleeve (31), a limit block being provided on the inside of the locking groove (26), and one end of the locking rod (33) being arc-shaped.

7. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 6, characterized in that, Support blocks (34) are symmetrically arranged on both sides of the lower fixing plate (24). The lower fixing plate (24) and the support blocks (34) are fixedly connected. A first limiting block (35) is fixedly connected to one end of the support block (34), and a second limiting block (36) is fixedly connected to the other end of the support block (34). A first magnetic pole (37) is arranged inside the locking groove (26). The first magnetic pole (37) is fixedly installed between the locking groove (26). A second magnetic pole (38) is arranged inside the locking rod (33). The second magnetic pole (38) is fixedly installed inside the locking rod (33).

8. The die-casting device for the connecting fastener of the automotive battery pack cooling system according to claim 1, characterized in that, The upper die-casting assembly (4) includes a second hydraulic cylinder (47) fixedly installed between the upper crossbeam (16) and the output end of the second hydraulic cylinder (47) fixedly connected to the movable mounting base (40). Positioning blocks (41) are symmetrically fixedly installed on both sides of the movable mounting base (40). The positioning blocks (41) are slidably connected to the slide rod (17). An upper fixing plate (42) is fixedly installed on the lower surface of the movable mounting base (40). An upper die (43) is provided inside the upper fixing plate (42). The four corners of the movable mounting base (40) are respectively fixedly connected to There is a mounting column (44), and a buffer seat (45) is slidably connected to the mounting column (44). A mounting spring (46) is fixedly sleeved on the side of the buffer seat (45) near the movable mounting seat (40). The end of the mounting spring (46) away from the buffer seat (45) is fixedly connected to the movable mounting seat (40). A positioning cylinder (18) is respectively set on the upper end of the fixed work frame (1) at the position corresponding to the mounting column (44). The positioning cylinder (18) is fixedly installed on the upper end of the fixed work frame (1), and the positioning cylinder (18) is slidably connected to the mounting column (44).

Images