An integrated die-casting mold for new energy vehicles capable of preventing deformation of die-cast finished products

Abstract

The present invention relates to the field of die-casting technology, and specifically to an integrated die-casting mold for new energy vehicles that can prevent the deformation of die-cast finished products, including an upper mold and a lower mold; an upper mold cavity is provided at the lower part of the upper mold, a gas supply unit and an igniter are arranged on the upper mold cavity, and a mold cavity is formed after the upper mold and the lower mold are molded together, and the gas supply unit supplies a rated amount of hydrogen to the mold cavity, and the igniter is started and ignited after the gas supply unit completes the hydrogen supply. The present invention consumes oxygen in the mold cavity by burning hydrogen, thereby reducing the oxygen content in the mold cavity, so that the finished product after die-casting is not easy to deform.

Description

Technical Field

[0001] The present invention relates to the field of die-casting technology, and in particular to an integrated die-casting mold for new energy vehicles capable of preventing deformation of die-cast finished products. Background Art

[0002] In the existing production of automobile shells, die-casting technology is often used. After die-casting is completed, the finished product needs to be demolded. However, in actual production, demolding is difficult, which can easily cause damage to the finished product.

[0003] Chinese patent application CN115780759A discloses a high-strength aluminum automobile engine casing die-casting device, including a workbench, a fixed mold is fixed on the upper end of the workbench, and a movable mold is slidably connected; a first fixed plate is arranged on one side of the movable mold, two second fixed plates are arranged on the workbench, a screw rod is rotatably connected between the two second fixed plates, the screw rod passes through the first fixed plate and is threadedly connected to the first fixed plate, and a first driving device for driving the screw rod to rotate is fixed on one of the second fixed plates.

[0004] Although the above scheme can improve the smoothness of the product during demolding and ensure that the casting is not easily deformed during demolding, the factors that cause deformation of the casting are not only demolding, but also the oxygen content in the mold cavity, cooling temperature, etc. After the mold in the prior art is closed, the oxygen in the mold cavity cannot be removed, and the quality of the casting after die-casting in a low oxygen concentration environment is better than the quality of gradually pressing in a high oxygen concentration environment. However, in the prior art, there is no relevant equipment that can consume the oxygen in the mold cavity after the mold is closed. Summary of the invention

[0005] In view of the above problems, an integrated die-casting mold for new energy vehicles is provided, which has the function of preventing the deformation of the die-cast finished product. A gas supply unit is arranged on the upper mold cavity of the upper mold, and the gas supply unit supplies hydrogen into the mold cavity. The concentration of hydrogen supplied to the mold cavity is controlled at 4% each time. Since the volume of the mold cavity is constant, when hydrogen is injected into the mold cavity through the gas supply unit, the supply amount of the gas supply unit can also be preset, thereby ensuring that the hydrogen concentration in the mold cavity is 4%. If the concentration of hydrogen is lower than 4%, the hydrogen cannot burn, and the concentration of hydrogen cannot be guaranteed in actual operation. It is completely in the state of 4%, so it is necessary to appropriately relax the amount of hydrogen filled into the mold cavity so that the concentration of hydrogen is between 4% and 10%. Although hydrogen will explode in this range, the impact is small and will not cause significant damage to the mold cavity. In addition, since the gas supply unit fills the mold cavity with hydrogen, water vapor will be generated after the hydrogen burns. Since the temperature of the upper and lower molds is relatively high, the water vapor generated by the combustion of hydrogen can be quickly evaporated, which can ensure that the oxygen in the mold cavity is consumed, thereby reducing the oxygen content in the mold cavity, making it less likely that the finished product after die-casting will be deformed.

[0006] In order to solve the problems of the prior art, the present invention provides an integrated die-casting mold for new energy vehicles that can prevent deformation of die-cast finished products, including an upper mold and a lower mold; an upper mold cavity is opened at the lower part of the upper mold, and a gas supply unit and an igniter are arranged on the upper mold cavity. After the upper mold and the lower mold are closed, a mold cavity is formed, and the gas supply unit supplies a rated amount of hydrogen into the mold cavity, and the igniter starts and ignites after the gas supply unit completes the hydrogen supply.

[0007] Preferably, the fuel gas supply unit supplies hydrogen to the mold cavity at least once, and after each hydrogen supply, the hydrogen concentration in the mold cavity is 4%-10%, and the igniter is started once after each hydrogen supply.

[0008] Preferably, the gas supply unit includes a gas supply port for supplying hydrogen into the mold cavity, and a gas outlet is provided on one side of the gas supply port. The gas supply port injects hydrogen into the mold cavity. After the igniter ignites the hydrogen in the mold cavity, the hydrogen burns to produce water vapor, and the gas outlet discharges the water vapor in the mold cavity.

[0009] Preferably, the gas supply unit also includes a first turntable and a second turntable rotatably arranged on the upper mold, the first turntable and the second turntable are both located at the top of the upper mold cavity, half of the first turntable is located above the upper mold cavity area, and half of the second turntable is located above the upper mold cavity area, the gas supply port is arranged on the first turntable, the gas outlet is arranged on the second turntable, the igniter is located on the second turntable and the igniter is located on one side of the gas outlet.

[0010] Preferably, the gas supply unit has an ignition mode and a sealing mode. When the gas supply unit is in the ignition mode, the gas supply port on the first turntable is located in the area directly above the upper mold cavity and is communicated with the upper mold cavity, and the gas outlet and the igniter on the second turntable are also located in the area directly above the upper mold cavity, and the gas outlet is communicated with the upper mold cavity. When the gas supply unit switches from the ignition mode to the sealing mode, the first turntable and the second turntable both rotate 180 degrees, and the gas supply port, gas outlet and igniter are all located outside the area directly above the upper mold cavity.

[0011] Preferably, a driving unit is provided in the upper mold, and the driving unit includes two gear rings, which are respectively fixed at the ends of the first turntable and the second turntable, and a gear is rotatably provided on one side of the gear ring. The gear ring and the gear are meshed with each other, and the two gears rotate synchronously.

[0012] Preferably, a cooling pipeline is provided in the upper mold, the impeller pump is provided at the end of the gear, the driving end of the impeller pump is fixedly connected to the gear, the impeller pump has an input end and an output end, a connecting pipe for connecting the two impeller pumps is provided between the impeller pump corresponding to the first turntable and the impeller pump corresponding to the second turntable, the cooling pipeline is connected to the input end of the impeller pump corresponding to the first turntable, and the two ends of the connecting pipe are respectively connected to the output end of the impeller pump corresponding to the first turntable and the input end of the impeller pump corresponding to the second turntable, and coolant is stored in the cooling pipeline, and the coolant can flow through the impeller pump.

[0013] Preferably, a reversing valve is provided between the input end of the impeller pump corresponding to the first turntable and the cooling pipeline, the reversing valve is a two-position two-way type, and one position of the reversing valve is connected to the input end of the impeller pump.

[0014] Preferably, a positioning unit is provided on the driving end of the impeller pump, and the positioning unit includes a guide ring arranged around the driving shaft of the impeller pump, two protrusions are fixedly provided on the upper part of the guide ring, and a connecting line between the two protrusions passes through the center of the guide ring. A guide path is formed on the upper part of the guide ring provided with the protrusions, and a pressing rod is arranged on one side of the driving shaft of the impeller pump and moves in a vertical direction, and the pressing rod rotates synchronously with the driving shaft of the impeller pump, and the bottom of the pressing rod is slidably matched with the guide path. When the pressing rod is not on the upper part of the protrusion, the upper part of the pressing rod is located at the lower part of the connecting pipe and contacts the connecting pipe. When the pressing rod is on the upper part of the protrusion, the pressing rod presses the connecting pipe. A pressure sensor is provided on the connecting pipe, and the pressure sensor presets a rated liquid pressure. After the pressure sensor detects that the pressure in the connecting pipe increases and reaches the rated liquid pressure, the driving unit stops running.

[0015] Preferably, a one-way valve is provided on one side of the air outlet, and the one-way valve allows the air in the mold cavity to flow into the outside through the one-way valve.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. In the present invention, a gas supply unit is provided on the upper mold cavity of the upper mold, and the gas supply unit supplies hydrogen into the mold cavity. The concentration of hydrogen supplied to the mold cavity each time is controlled at 4%. Since the volume of the mold cavity is constant, when hydrogen is injected into the mold cavity through the gas supply unit, the supply amount of the gas supply unit can also be preset to ensure that the hydrogen concentration in the mold cavity is 4%. If the concentration of hydrogen is lower than 4%, the hydrogen cannot burn. In actual operation, it is impossible to ensure that the concentration of hydrogen is completely at 4%. Therefore, it is necessary to fill the hydrogen into the mold cavity. The volume of the mold cavity is appropriately relaxed so that the concentration of hydrogen is between 4% and 10%. Although hydrogen may explode in this range, the impact is small and will not cause significant damage to the mold cavity. In addition, since the gas supply unit fills the mold cavity with hydrogen, water vapor will be generated after the hydrogen burns. Since the temperatures of the upper and lower molds are relatively high, the water vapor generated by the hydrogen combustion can be quickly evaporated. By injecting hydrogen multiple times and then exploding, the oxygen in the mold cavity is consumed, thereby reducing the oxygen content in the mold cavity, making it less likely for the finished product after die-casting to deform.

[0018] 2. The present invention injects hydrogen into the mold cavity and ignites the hydrogen. The high temperature generated after the ignition can also discharge the water vapor in the mold cavity from the gas outlet, thereby reducing the humidity in the mold cavity and further improving the die-casting quality of the die-casting.

[0019] 3. The present invention sets an impeller pump and utilizes the coolant in the cooling pipeline to drive the impeller pump, so that the first turntable and the second turntable rotate, thereby ensuring that the air supply port, the air outlet and the igniter will not be blocked or wrapped by the molten metal, and ensuring that the hydrogen supply of the gas supply unit is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The invention is a three-dimensional schematic diagram of an integrated die-casting mold for a new energy vehicle which has the function of preventing deformation of the die-cast finished product.

[0021] Figure 2 The invention discloses a side view of an integrated die-casting mold for a new energy vehicle which has the function of preventing the die-cast finished product from being deformed.

[0022] Figure 3 It is an integrated die-casting mold for new energy vehicles that can prevent the die-casting finished product from deforming. Figure 2 Schematic cross-sectional view at AA in the middle.

[0023] Figure 4 The invention is a cutaway stereoscopic schematic diagram of an integrated die-casting mold for a new energy vehicle which has the function of preventing the die-cast finished product from being deformed.

[0024] Figure 5 It is an integrated die-casting mold for new energy vehicles that can prevent the die-casting finished product from deforming. Figure 4A local enlarged schematic diagram of point B in the middle.

[0025] Figure 6 This is a three-dimensional diagram of an integrated die-casting mold for new energy vehicles that can prevent the die-cast finished product from deforming after the lower mold is removed. Figure 1 .

[0026] Figure 7 It is an integrated die-casting mold for new energy vehicles that can prevent the die-casting finished product from deforming. Figure 6 A partial enlarged schematic diagram of point C in the middle.

[0027] Figure 8 This is a three-dimensional diagram of an integrated die-casting mold for new energy vehicles that can prevent the die-cast finished product from deforming after the lower mold is removed. Figure 2 .

[0028] Fig. 9 It is an integrated die-casting mold for new energy vehicles that can prevent the die-casting finished product from deforming. Figure 8 A partial enlarged schematic diagram is shown in the figure.

[0029] Fig.10 The invention discloses a three-dimensional schematic diagram of an integrated die-casting mold for new energy vehicles which has the function of preventing the die-cast finished product from being deformed, with the lower mold and part of the abutment frame removed.

[0030] Fig.11 It is an integrated die-casting mold for new energy vehicles that can prevent the die-casting finished product from deforming. Fig.10 A partial enlarged schematic diagram of point E in the middle.

[0031] The numbers in the figure are:

[0032] 1. Lower mold; 2. Upper mold; 3. Ignitor; 4. Gas supply unit; 41. Gas supply port; 42. Gas outlet; 421. One-way valve; 43. First turntable; 44. Second turntable; 45. Drive unit; 451. Gear ring; 452. Gear; 453. Impeller pump; 454. Connecting pipe; 455. Reversing valve; 46. Positioning unit; 461. Guide ring; 462. Raised block; 463. Press rod; 464. Abutment frame; 465. Roller; 5. Cooling pipeline. DETAILED DESCRIPTION

[0033] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] Reference Figure 1-Figure 3 , Figure 6 and Figure 7: An integrated die-casting mold for new energy vehicles with the function of preventing deformation of die-cast finished products, comprising an upper mold 2 and a lower mold 1; an upper mold cavity is opened at the lower part of the upper mold 2, and a gas supply unit 4 and an igniter 3 are arranged on the upper mold cavity. After the upper mold 2 and the lower mold 1 are closed, a mold cavity is formed, and the gas supply unit 4 supplies a rated amount of hydrogen into the mold cavity. The igniter 3 starts and ignites after the gas supply unit 4 completes the hydrogen supply.

[0035] The die-casting mold is composed of an upper mold 2 and a lower mold 1. The upper mold 2 and the lower mold 1 are arranged in the vertical direction. The upper mold 2 is located above the lower mold 1. An upper mold cavity is provided at the lower part of the upper mold 2, and a lower mold cavity is provided at the upper part of the lower mold 1. When in use, the upper mold 2 gradually moves toward the lower mold 1 in the vertical direction, and finally the upper mold 2 covers the lower mold 1. At this time, the upper mold 2 and the lower mold 1 complete the mold closing. The upper mold cavity on the upper mold 2 and the lower mold cavity on the lower mold 1 jointly form a mold cavity, and then the gas supply unit 4 and the igniter 3 cooperate to perform multiple ignitions in the mold cavity, so that the oxygen in the mold cavity is consumed. The specific principle is as follows: a gas supply unit 4 is provided on the upper mold cavity of the upper mold 2, and the gas supply unit 4 supplies hydrogen to the mold cavity. The concentration of hydrogen supplied to the mold cavity each time is controlled at 4%. Since the volume of the mold cavity is constant, when hydrogen is injected into the mold cavity through the gas supply unit 4, the supply amount of the gas supply unit 4 can also be pre-set, thereby ensuring that the hydrogen concentration in the mold cavity is 4%. If the concentration of hydrogen is lower than 4%, the hydrogen is consumed. The gas cannot burn. In actual operation, it is impossible to ensure that the concentration of hydrogen is completely at 4%. Therefore, the amount of hydrogen filled into the mold cavity needs to be appropriately relaxed so that the concentration of hydrogen is between 4% and 10%. Although hydrogen will explode in this range, the impact is small and will not cause significant damage to the mold cavity. Moreover, since the gas supply unit 4 fills the mold cavity with hydrogen, water vapor can be generated after the hydrogen burns. Since the upper mold 2 and the lower mold 1 have higher temperatures, the water vapor generated by the combustion of hydrogen can be quickly evaporated, so that the oxygen in the mold cavity can be consumed, thereby reducing the oxygen content in the mold cavity, making it difficult for the finished product after die casting to deform. After the hydrogen is ignited, a feed hole is provided in the upper mold 2, and the molten metal enters the mold cavity through the feed hole, thereby completing the die casting.

[0036] Reference Figure 1-Figure 11 : The gas supply unit 4 supplies hydrogen to the mold cavity at least once. After each hydrogen supply, the hydrogen concentration in the mold cavity is 4%-10%, and the igniter 3 is started once after each hydrogen supply.

[0037] The mold cavity is supplied with hydrogen at least once through the gas supply unit 4. The igniter 3 is started once after each hydrogen supply, so that the oxygen in the mold cavity can be consumed. This is because hydrogen requires oxygen when burning. After the mold cavity is injected with hydrogen multiple times and ignited, the oxygen in the mold cavity can be gradually consumed. Thus, when the concentration of hydrogen is between 4% and 75.6%, hydrogen is prone to deflagration, and when the concentration of hydrogen is lower than 4%, it cannot burn. Controlling the concentration of hydrogen between 4% and 10% has the following advantages: 1. Less hydrogen is consumed when hydrogen is injected into the mold cavity; 2. If hydrogen with a concentration higher than 75.6% is used to burn in the mold cavity, although hydrogen can only burn without deflagration at this time, more hydrogen is required. When the concentration is higher than 75.6%, the combustion of hydrogen is incomplete, that is, the oxygen in the mold cavity is limited and hydrogen cannot be completely burned. In addition, there are errors in actual operation, and the concentration of hydrogen cannot be accurately controlled. When hydrogen with a concentration higher than 75.6% is injected into the mold cavity, some hydrogen is easily discharged without burning. At the same time, in actual operation, when the injected hydrogen is lower than 75.6%, violent deflagration will occur, which is easy to damage the mold cavity.

[0038] Reference Figure 5 and Figure 7 The gas supply unit 4 includes a gas supply port 41 for supplying hydrogen into the mold cavity. A gas outlet 42 is provided on one side of the gas supply port 41. The gas supply port 41 injects hydrogen into the mold cavity. After the igniter 3 ignites the hydrogen in the mold cavity, the hydrogen burns to generate water vapor, and the gas outlet 42 discharges the water vapor in the mold cavity.

[0039] Since the temperature of the mold cavity formed by the upper mold 2 and the lower mold 1 is relatively high, the water formed after the combustion of hydrogen can be quickly converted into water vapor and discharged from the outlet 42, thereby reducing the humidity in the mold cavity and further ensuring the quality of the die-casting when the die-casting is completed.

[0040] Reference Figure 3-Figure 5 The gas supply unit 4 also includes a first turntable 43 and a second turntable 44 rotatably arranged on the upper mold 2. The first turntable 43 and the second turntable 44 are both located at the top of the upper mold cavity. Half of the first turntable 43 is located above the upper mold cavity area, and half of the second turntable 44 is located above the upper mold cavity area. The gas supply port 41 is arranged on the first turntable 43, and the gas outlet 42 is arranged on the second turntable 44. The igniter 3 is located on the second turntable 44 and the igniter 3 is located on one side of the gas outlet 42.

[0041] When hydrogen needs to be injected into the mold cavity, the first turntable 43 and the second turntable 44, the air supply port 41 on the first turntable 43 and the air outlet 42 on the second turntable 44 are both located in the upper area of ​​the mold cavity; after the hydrogen has completed combustion and there is no need to inject hydrogen into the mold cavity, the first turntable 43 and the second turntable 44 respectively drive the air supply port 41 and the air outlet 42 to rotate out from the upper area of ​​the mold cavity.

[0042] Reference Figure 1-Figure 11 : The gas supply unit 4 has an ignition mode and a sealing mode. When the gas supply unit 4 is in the ignition mode, the gas supply port 41 on the first turntable 43 is located in the area directly above the upper mold cavity and communicates with the upper mold cavity, the gas outlet 42 on the second turntable 44 and the igniter 3 are also located in the area directly above the upper mold cavity, and the gas outlet 42 is communicated with the upper mold cavity. When the gas supply unit 4 switches from the ignition mode to the sealing mode, the first turntable 43 and the second turntable 44 both rotate 180 degrees, and the gas supply port 41, the gas outlet 42 and the igniter 3 are all located outside the area directly above the upper mold cavity.

[0043] Reference Fig.10 and Fig.11 A driving unit 45 is provided in the upper mold 2, and the driving unit 45 includes two gear rings 451. The two gear rings 451 are respectively fixedly arranged at the ends of the first turntable 43 and the second turntable 44. A gear 452 is rotatably arranged on one side of the gear ring 451. The gear ring 451 and the gear 452 are meshed with each other, and the two gears 452 rotate synchronously.

[0044] Reference Figure 8-Figure 10 : A cooling pipeline 5 is arranged in the upper mold 2, and an impeller pump 453 is arranged at the end of the gear 452. The driving end of the impeller pump 453 is fixedly connected to the gear 452. The impeller pump 453 has an input end and an output end. A connecting pipe 454 for connecting the two impeller pumps 453 is arranged between the impeller pump 453 corresponding to the first turntable 43 and the impeller pump 453 corresponding to the second turntable 44. The cooling pipeline 5 is connected to the input end of the impeller pump 453 corresponding to the first turntable 43, and the two ends of the connecting pipe 454 are respectively connected to the output end of the impeller pump 453 corresponding to the first turntable 43 and the input end of the impeller pump 453 corresponding to the second turntable 44. Coolant is stored in the cooling pipeline 5, and the coolant can flow through the impeller pump 453.

[0045] The coolant in the cooling line 5 can flow into the impeller pump 453, and under the transportation of the connecting pipe 454, the two impeller pumps 453 operate synchronously. Since the first turntable 43 and the second turntable 44 are fixedly provided with a gear ring 451, there are two gear rings 451, and each gear ring 451 is provided with a gear 452 meshing with the gear ring 451 on one side, and each gear 452 is provided with an impeller pump 453 that can drive the gear 452 to rotate, so there are also two impeller pumps 453, and the two impeller pumps 453 are connected through the connecting pipe 454. When the coolant flows through the connecting pipe 454, the impeller pumps 453 located at both ends of the connecting pipe 454 rotate synchronously under the action of the flowing coolant, so that the two gears 452 rotate synchronously.

[0046] Reference Figure 8 A reversing valve 455 is provided between the input end of the impeller pump 453 corresponding to the first turntable 43 and the cooling pipeline 5 . The reversing valve 455 is a two-position two-way type, and one position of the reversing valve 455 is connected to the input end of the impeller pump 453 .

[0047] One of the positions of the reversing valve 455 is connected to the input end of the impeller pump 453 corresponding to the first turntable 43. A cooling box is provided on one side of the upper mold 2. Cooling liquid is provided in the cooling box. The other position of the reversing valve 455 is connected to the cooling box. After the molten metal is injected into the mold cavity between the upper mold 2 and the lower mold 1, the coolant flows in the cooling pipeline 5, thereby achieving the effect of cooling the mold cavity. Before the molten metal enters the mold cavity, the cooling pipeline 5 is connected to the impeller pump 453 corresponding to the first turntable 43 through the reversing valve 455. The coolant flows into the impeller pump 453 through the reversing valve 455, so that the driving end of the impeller pump 453 rotates, and then the impeller pump 453 drives the gear 452, so that The gear ring 451 drives the first turntable 43 to rotate, and since the two impeller pumps 453 are connected by a connecting pipe 454, the coolant can simultaneously drive the impeller pump 453 corresponding to the first turntable 43 and the impeller pump 453 corresponding to the second turntable 44 when flowing, so that the first turntable 43 and the second turntable 44 can rotate synchronously. After the molten metal is injected into the mold cavity, it is necessary to put the gas supply unit 4 in a sealing mode, that is, the air supply port 41, the air outlet 42 and the igniter 3 are all located outside the upper mold cavity area, so that the molten metal injected into the mold cavity will not enter the air supply port 41 and the air outlet 42, and the molten metal will not wrap the ignition end of the igniter 3, causing damage to the igniter 3.

[0048] Reference Figure 6 , Fig. 9 and Fig.11: A positioning unit 46 is provided on the driving end of the impeller pump 453. The positioning unit 46 includes a guide ring 461 which is provided around the driving shaft of the impeller pump 453. Two protrusions 462 are fixedly provided on the upper part of the guide ring 461. The connecting line between the two protrusions 462 passes through the center of the guide ring 461. The upper part of the guide ring 461 provided with the protrusions 462 forms a guide path. The pressing rod 463 is provided on one side of the driving shaft of the impeller pump 453 and moves in the vertical direction. The pressing rod 463 rotates synchronously with the driving shaft of the impeller pump 453. The bottom of the pressing rod 463 slides in cooperation with the guide path. When the pressing rod 463 is not at the upper part of the raised block 462, the upper part of the pressing rod 463 is located at the lower part of the connecting tube 454 and contacts the connecting tube 454. When the pressing rod 463 is at the upper part of the raised block 462, the pressing rod 463 presses the connecting tube 454. A pressure sensor is provided on the connecting tube 454. The pressure sensor presets a rated liquid pressure. After the pressure sensor detects that the pressure in the connecting tube 454 increases and reaches the rated liquid pressure, the driving unit 45 stops running.

[0049] The positioning unit 46 further includes an abutment frame 464 and a roller 465. The abutment frame 464 is arranged on the upper part of the connecting tube 454, and the abutment frame 464 contacts the upper part of the connecting tube 454. The rollers 465 are rotatably arranged at both ends of the pressing rod 463. The axis of the rollers 465 is parallel to the radial direction of the driving shaft of the impeller pump 453. When the driving shaft of the impeller pump 453 rotates, the pressing rod 463 rolls on the guide path through the rollers 465 arranged at the bottom thereof. When the pressing rod 463 passes through the protruding block 454, the pressing rod 463 is pressed against the protruding block 454. 62, the protruding block 462 lifts the pressing rod 463, so that the pressing rod 463 presses the connecting pipe 454, so that the flow rate in the connecting pipe 454 is reduced, and the pressure in the connecting pipe 454 increases at this time, and the pressure sensor arranged in the connecting pipe 454 can detect the pressure increase in the connecting pipe 454. When the pressure monitored by the pressure sensor reaches the rated liquid pressure, the driving unit 45 stops running, so that the first turntable 43 and the second turntable 44 can rotate smoothly by 180 degrees.

[0050] Reference Figure 1-Figure 4 A one-way valve 421 is provided on one side of the air outlet 42 , and the one-way valve 421 allows the air in the mold cavity to flow into the outside through the one-way valve 421 .

[0051] When the upper mold 2 and the lower mold 1 are closed, the one-way valve 421 only allows the air in the mold cavity to flow to the outside. The setting of the one-way valve 421 can prevent the outside air from flowing back into the mold cavity through the air outlet 42. When hydrogen enters the mold cavity through the air supply port 41 and is ignited by the igniter 3, the air in the mold cavity expands. In this way, the water vapor formed after the oxygen in the mold cavity is consumed can be discharged through the one-way valve 421.

[0052] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An integrated die-casting die for a new energy vehicle capable of preventing deformation of a die-cast finished product, comprising an upper die (2) and a lower die (1); It is characterized in that An upper mold cavity is provided at the lower portion of the upper mold (2), and a gas supply unit (4) and an igniter (3) are provided on the upper mold cavity. When the upper mold (2) and the lower mold (1) are closed together to form a mold cavity, the gas supply unit (4) supplies a rated amount of hydrogen into the mold cavity, and the igniter (3) is started and ignites after the gas supply unit (4) completes the hydrogen supply.

2. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 1, characterized in that: The fuel gas supply unit (4) supplies hydrogen to the mold cavity at least once. After each hydrogen supply, the hydrogen concentration in the mold cavity is 4%-10%, and the igniter (3) is started once after each hydrogen supply.

3. The integrated die-casting mold for new energy vehicles capable of preventing deformation of die-cast finished products according to claim 1, characterized in that: The gas supply unit (4) comprises a gas supply port (41) for supplying hydrogen into the mold cavity, and a gas outlet (42) is arranged on one side of the gas supply port (41). The gas supply port (41) injects hydrogen into the mold cavity, and after the igniter (3) ignites the hydrogen in the mold cavity, the hydrogen burns to generate water vapor, and the gas outlet (42) discharges the water vapor in the mold cavity.

4. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 3, characterized in that: The gas supply unit (4) further comprises a first turntable (43) and a second turntable (44) rotatably arranged on the upper mold (2); the first turntable (43) and the second turntable (44) are both located at the top of the upper mold cavity; half of the first turntable (43) is located above the upper mold cavity area; half of the second turntable (44) is located above the upper mold cavity area; the gas supply port (41) is arranged on the first turntable (43); the gas outlet (42) is arranged on the second turntable (44); the igniter (3) is located on the second turntable (44) and the igniter (3) is located on one side of the gas outlet (42).

5. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 4, characterized in that: The gas supply unit (4) has an ignition mode and a sealing mode. When the gas supply unit (4) is in the ignition mode, the gas supply port (41) on the first turntable (43) is located in the area directly above the upper mold cavity and communicates with the upper mold cavity. The gas outlet (42) and the igniter (3) on the second turntable (44) are also located in the area directly above the upper mold cavity, and the gas outlet (42) is communicated with the upper mold cavity. When the gas supply unit (4) switches from the ignition mode to the sealing mode, the first turntable (43) and the second turntable (44) are both rotated 180 degrees, and the gas supply port (41), the gas outlet (42) and the igniter (3) are all located outside the area directly above the upper mold cavity.

6. The integrated die-casting mold for new energy vehicles capable of preventing deformation of die-cast finished products according to claim 4, characterized in that: A driving unit (45) is provided in the upper mold (2). The driving unit (45) comprises two gear rings (451). The two gear rings (451) are respectively fixedly provided at the ends of the first rotating disk (43) and the second rotating disk (44). A gear (452) is rotatably provided on one side of the gear ring (451). The gear ring (451) and the gear (452) are meshed with each other, and the two gears (452) rotate synchronously.

7. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 6, characterized in that: A cooling pipeline (5) is arranged in the upper mold (2). An impeller pump (453) is arranged at the end of the gear (452). The driving end of the impeller pump (453) is fixedly connected to the gear (452). The impeller pump (453) has an input end and an output end. A connecting pipe (454) for connecting the two impeller pumps (453) is arranged between the impeller pump (453) corresponding to the first turntable (43) and the impeller pump (453) corresponding to the second turntable (44). The cooling pipeline (5) is connected to the input end of the impeller pump (453) corresponding to the first turntable (43). The two ends of the connecting pipe (454) are respectively connected to the output end of the impeller pump (453) corresponding to the first turntable (43) and the input end of the impeller pump (453) corresponding to the second turntable (44). Coolant is stored in the cooling pipeline (5) and the coolant can flow through the impeller pump (453).

8. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 7, characterized in that: A reversing valve (455) is provided between the input end of the impeller pump (453) corresponding to the first rotating disk (43) and the cooling pipeline (5); the reversing valve (455) is a two-position two-way type, and one position of the reversing valve (455) is in communication with the input end of the impeller pump (453).

9. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 7, characterized in that: A positioning unit (46) is provided on the driving end of the impeller pump (453). The positioning unit (46) includes a guide ring (461) arranged around the driving shaft of the impeller pump (453). Two protrusions (462) are fixedly provided on the upper part of the guide ring (461). The connection line between the two protrusions (462) passes through the center of the guide ring (461). The upper part of the guide ring (461) provided with the protrusions (462) forms a guide path. A pressing rod (463) is arranged on one side of the driving shaft of the impeller pump (453) and moves in a vertical direction. The pressing rod (463) moves synchronously with the driving shaft of the impeller pump (453). The bottom of the pressing rod (463) is slidably matched with the guide path. When the pressing rod (463) is not located on the upper part of the protruding block (462), the upper part of the pressing rod (463) is located on the lower part of the connecting tube (454) and contacts the connecting tube (454). When the pressing rod (463) is located on the upper part of the protruding block (462), the pressing rod (463) presses the connecting tube (454). A pressure sensor is provided on the connecting tube (454). The pressure sensor presets a rated liquid pressure. When the pressure sensor detects that the pressure in the connecting tube (454) increases and reaches the rated liquid pressure, the driving unit (45) stops running.

10. The integrated die-casting mold for new energy vehicles capable of preventing the die-cast finished product from being deformed according to claim 3, characterized in that: A one-way valve (421) is provided on one side of the air outlet (42), and the one-way valve (421) allows air in the mold cavity to flow into the outside through the one-way valve (421).

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