Cold water plate die casting device and method for new energy vehicles

Abstract

The present invention discloses a cold water plate die-casting device and method for new energy vehicles, belonging to the field of die-casting machines. The cold water plate die-casting device for new energy vehicles includes: a base and a clamping mechanism, the clamping mechanism is fixed on the base, and also includes: a fixed plate fixed on the base; a plurality of limit rods fixed between the fixed plate and the clamping mechanism; a movable plate sliding on the limit rods; a driving rod symmetrically arranged between the movable plate and the clamping mechanism; a main mold arranged on the movable plate; a sub-mold arranged on the fixed plate, and the main mold matches the sub-mold, and a cooling mechanism is arranged in both the main mold and the sub-mold; a connecting pipe is opened on the sub-mold; the present invention effectively reduces the amount of bubbles in the die-cast cold water plate, and effectively improves the quality of the cold water plate die-casting, prevents the surface of the cold water plate from having pits, and thus effectively improves the die-casting quality of the cold water plate.

Description

Technical Field

[0001] The present invention relates to the technical field of die-casting machines, and in particular to a cold water plate die-casting device and method for new energy vehicles. Background Art

[0002] The cold water plate is an important component of new energy vehicles and is suitable for heat dissipation. In order to improve the production quality of the cold water plate, a die-casting device is often used to process it. The die-casting device is a machine used for pressure casting and is often used in the production and processing of automotive parts. Under the action of pressure, the die-casting device can hydraulically inject the molten metal into the mold for cooling and forming. After the mold is opened, a solid metal casting can be obtained.

[0003] The current die-casting device uses an injection mechanism to hydraulically inject metal into the mold, and then a vacuum mechanism is set at the top to vacuum the mold cavity. However, when the molten metal moves to a certain position in the mold cavity for die-casting, the vacuum mechanism is closed. When the molten metal is poured into the injection mechanism after melting, there may be bubbles inside. The bubbles in the molten metal may not be completely discharged by the vacuum mechanism alone, which may affect the die-casting quality of the cold water plate. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a cold water plate die-casting device and method for new energy vehicles that can overcome the above problems or at least partially solve the above problems.

[0005] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the present invention is as follows:

[0006] The cold water plate die-casting device for new energy vehicles comprises: a base and a clamping mechanism, wherein the clamping mechanism is fixed on the base, and further comprises: a fixed plate fixed on the base; a plurality of limit rods fixed between the fixed plate and the clamping mechanism; a movable plate sliding on the limit rods; a driving rod symmetrically arranged between the movable plate and the clamping mechanism; a main mold arranged on the movable plate; a sub-mold arranged on the fixed plate, wherein the main mold matches the sub-mold, and a cooling mechanism is arranged in both the main mold and the sub-mold; a connecting pipe opened on the sub-mold; a vacuum mechanism arranged on the clamping mechanism, wherein the vacuum mechanism is connected to the connecting pipe; and a cooling mechanism is arranged in the connecting pipe. An exhaust pipe is arranged between the tubes; a controller is arranged on the upper side of the base; a die-casting port is arranged on the auxiliary mold; a shot tube is fixed on one side of the fixed plate, and the shot tube is communicated with the die-casting port; a feed port is opened on the shot tube; a shot rod slides in the shot tube; a driving component is arranged on the base, and the driving component is used to drive the shot rod to move back and forth; a servo electric cylinder is fixed in the shot rod; a connecting rod is sealed and slid on the shot rod, and one end of the connecting rod is fixedly connected to the output end of the servo electric cylinder; a shot head is sealed and slid in the shot tube, and the shot head is fixedly connected to the connecting rod.

[0007] In order to improve the die-casting quality of the cold water plate, preferably, a notch is provided in the auxiliary mold, and a protrusion matching the notch is fixedly connected to the main mold.

[0008] Preferably, the connecting pipe is arranged on the upper side of the notch.

[0009] In order to facilitate the movement of the injection rod, the driving assembly further includes a booster cylinder fixed on the base, a push rod is sealed and slidable in the booster cylinder, the push rod is threadedly connected to the injection rod, and an oil pipe is arranged at the end of the booster cylinder.

[0010] In order to facilitate cooling of the injection rod, further, a cooling pipe and a return pipe are arranged inside the injection rod, a cooling box is arranged on the base, a third connecting pipe is fixedly connected between the cooling pipe and the output end of the cooling box, and a fourth connecting pipe is fixedly connected between the return pipe and the input end of the cooling box.

[0011] In order to facilitate the temperature control of the injection head, preferably, an annular cavity is provided between the injection head and the injection rod, a liquid inlet pipe and a liquid discharge pipe connected to the annular cavity are provided in the injection rod, a circulation box is fixedly connected to the base, a first connecting pipe is fixedly connected between the liquid supply end of the circulation box and the liquid inlet pipe, a second connecting pipe is fixedly connected between the liquid extraction end of the circulation box and the liquid discharge pipe, and a one-way valve is provided in both the liquid inlet pipe and the liquid discharge pipe.

[0012] In order to facilitate the shaking of the coolant, further, a plurality of heat conducting plates are fixedly connected to the connecting rod.

[0013] In order to facilitate uniform heating of the coolant, a plurality of mesh holes are further provided on the heat conducting plate.

[0014] In order to prevent the heat of the liquid inlet pipe and the liquid discharge pipe from entering into the injection rod, further, a heat insulation sleeve is symmetrically fixedly connected inside the injection rod, and the liquid inlet pipe and the liquid discharge pipe are matched with the heat insulation sleeve.

[0015] The cold water plate die casting method for new energy vehicles mainly includes the following steps:

[0016] Step 1: The mold clamping mechanism pushes the main mold to fit with the auxiliary mold through the driving rod;

[0017] Step 2: Add the melted raw material into the injection tube from the feed port;

[0018] Step 3: Drive the injection rod to move toward the auxiliary mold through the driving assembly. When the end of the injection rod exceeds the feed port, the controller controls the servo electric cylinder to open, and the servo electric cylinder drives the injection head to vibrate back and forth through the connecting rod.

[0019] Step 4: When the injection head moves to the set position, the controller controls the servo electric cylinder to retract and stop;

[0020] Step 5: Cooling the main mold and the auxiliary mold by a cooling mechanism;

[0021] Step 6: Drive the driving rod to retract through the mold clamping mechanism and take out the cold water plate.

[0022] Compared with the prior art, the present invention provides a cold water plate die-casting device for new energy vehicles, which has the following beneficial effects:

[0023] 1. In the cold water plate die-casting device for new energy vehicles, the vacuum mechanism extracts the air between the main mold and the sub-mold through the exhaust pipe, and the servo electric cylinder drives the injection head to vibrate back and forth through the connecting rod, so that the raw material vibrates at a high frequency. After cooperating with the vacuum mechanism, the bubbles in the raw material move upward and are finally discharged through the vacuum mechanism, thereby effectively reducing the amount of bubbles in the die-casting cold water plate, thereby effectively improving the die-casting quality of the cold water plate.

[0024] 2. The cold water plate die-casting device for new energy vehicles forms a bulge matching the bulge by opening a notch on the upper side of the auxiliary mold, and the raw material bubbles move upward under vibration. Finally, the gas that is not completely discharged between the main mold and the auxiliary mold and the bubbles located on the upper layer of the raw material liquid are located at the notch. Finally, the bulge of the cold water plate after die-casting is completed is sheared and polished, thereby effectively improving the quality of the die-casting of the cold water plate and preventing pits on the surface of the cold water plate.

[0025] 3. In the cold water plate die-casting device for new energy vehicles, the cooling box transports the coolant to the injection rod through the third connecting pipe and the cooling pipe, and finally returns to the cooling box through the return pipe and the fourth connecting pipe for circulation, so as to cool the injection rod and effectively prevent the injection rod from being overheated and affecting the operation of the boost cylinder.

[0026] The parts not involved in the device are the same as the prior art or can be implemented by the prior art. The present invention effectively reduces the amount of bubbles in the die-casting cold water plate, and effectively improves the quality of the die-casting of the cold water plate, prevents the surface of the cold water plate from having pits, and thus effectively improves the die-casting quality of the cold water plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a schematic diagram of the unfolded structure of the main mold and the auxiliary mold in the present invention;

[0030] Figure 3 It is a structural schematic diagram of the auxiliary mold in the present invention;

[0031] Figure 4 The cross-section diagram of the injection rod, the booster cylinder and the injection tube in the present invention is shown in FIG. Figure 1 ;

[0032] Figure 5 The cross-section diagram of the injection rod, the booster cylinder and the injection tube in the present invention is shown in FIG. Figure 2 ;

[0033] Figure 6 It is a schematic diagram of the expanded structure of the injection tube, the injection rod, the servo electric cylinder, the booster cylinder, the injection head and the heat conducting plate in the present invention;

[0034] Figure 7 For the present invention Figure 6 A magnified schematic diagram of center A.

[0035] Description of main reference numerals:

[0036] 1. Base; 101. Clamping mechanism; 102. Limit rod; 103. Driving rod; 104. Moving plate; 105. Fixed plate; 106. Vacuum mechanism; 107. Exhaust pipe; 108. Controller; 2. Main mold; 201. Bump; 202. Sub-mold; 203. Notch; 204. Connecting pipe; 205. Die casting port; 3. Shot tube; 301. Feed port; 4. Shot rod; 401. Annular cavity; 402. Servo electric cylinder; 403. Connecting rod; 404, injection head; 405, liquid inlet pipe; 406, liquid discharge pipe; 407, circulation box; 408, first connecting pipe; 409, second connecting pipe; 5, cooling box; 501, cooling pipe; 502, return pipe; 503, third connecting pipe; 504, fourth connecting pipe; 505, water spray trough; 506, insulation sleeve; 507, heat conduction plate; 508, mesh; 509, solenoid valve; 6, booster cylinder; 601, push rod; 602, oil pipe. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0038] Example 1: Reference Figure 1-Figure 7 , a cold water plate die-casting device for new energy vehicles, comprising: a base 1 and a clamping mechanism 101, the clamping mechanism 101 is fixed on the base 1, and also comprises: a fixed plate 105, fixed on the base 1; a plurality of limit rods 102, fixed between the fixed plate 105 and the clamping mechanism 101; a movable plate 104, sliding on the limit rods 102; a driving rod 103, symmetrically arranged between the movable plate 104 and the clamping mechanism 101; a main mold 2, arranged on the movable plate 104; a sub-mold 202, arranged on the fixed plate 105, and the main mold 2 matches the sub-mold 202, and the main mold 2 and the sub-mold 202 are both provided with cooling mechanisms; a connecting pipe 204, opened on the sub-mold 202; a vacuum mechanism 106, arranged on the clamping mechanism 101, and a vacuum An exhaust pipe 107 is provided between the mechanism 106 and the connecting pipe 204; a controller 108 is provided on the upper side of the base 1; a die-casting port 205 is provided on the auxiliary mold 202; a shot tube 3 is fixed on one side of the fixed plate 105, and the shot tube 3 is communicated with the die-casting port 205; a feed port 301 is provided on the shot tube 3; a shot rod 4 slides in the shot tube 3; a driving assembly is provided on the base 1, and the driving assembly is used to drive the shot rod 4 to reciprocate; a servo electric cylinder 402 is fixed in the shot rod 4; a connecting rod 403 is sealingly slid on the shot rod 4, and one end of the connecting rod 403 is fixedly connected to the output end of the servo electric cylinder 402; a shot head 404 is sealingly slid in the shot tube 3, and the shot head 404 is fixedly connected to the connecting rod 403.

[0039] The driving assembly includes a booster cylinder 6 fixed on the base 1 , a push rod 601 is sealed and slidable inside the booster cylinder 6 , the push rod 601 is threadedly connected to the injection rod 4 , and an oil pipe 602 is arranged at the end of the booster cylinder 6 .

[0040] When die-casting the cold water plate of the new energy vehicle, the mold clamping mechanism 101 drives the main mold 2 to move toward the auxiliary mold 202 through the driving rod 103, so that the main mold 2 and the auxiliary mold 202 are fitted together.

[0041] The molten raw material is added into the injection tube 3 from the feed port 301, and oil is supplied to the oil pipe 602 at a constant speed through the external oil supply mechanism, so that the push rod 601 pushes the injection rod 4 to move toward the auxiliary mold 202. When the injection rod 4 moves a certain distance, and the end of the injection rod 4 exceeds the feed port 301 at this time, the controller 108 controls the servo electric cylinder 402 and the vacuum mechanism 106 to open, and the vacuum mechanism 106 extracts the air between the main mold 2 and the auxiliary mold 202 through the exhaust pipe 107. The servo electric cylinder 402 drives the injection head 404 to vibrate back and forth through the connecting rod 403, so that the raw material vibrates at a high frequency. After cooperating with the vacuum mechanism 106, the bubbles in the raw material move upward and are finally discharged through the vacuum mechanism 106, thereby effectively reducing the amount of bubbles in the die-casting cold water plate, thereby effectively improving the die-casting quality of the cold water plate.

[0042] After the injection rod 4 moves for a certain period of time, the controller 108 controls the servo electric cylinder 402 to return to the contracted state and close, and controls the vacuum mechanism 106 to close. At this time, the injection head 404 fits with the end of the injection rod 4.

[0043] After die casting is completed, cooling is performed through the cooling mechanisms in the main mold 2 and the auxiliary mold 202. Finally, the mold clamping mechanism 101 drives the main mold 2 to reset through the driving rod 103, and the cold water plate after die casting is taken out by an external manipulator.

[0044] It should be noted that the oil supply mechanism is a prior art, which is composed of an oil tank and a PLC control end, controls the oil supply and oil extraction into the oil pipe 602, and can control its oil supply speed. The cooling mechanism in the main mold 2 and the auxiliary mold 202 adopts the water-cooling cooling equipment in the prior art, which is not shown in the figure. In the die-casting of the cold water plate, the release agent injection mechanism in the prior art is used to spray the main mold 2 and the auxiliary mold 202 with a demolding machine.

[0045] Example 2: Reference Figure 1-Figure 7 The cold water plate die-casting device for new energy vehicles is basically the same as that of Example 1. Furthermore, a notch 203 is opened in the auxiliary mold 202, and a protrusion 201 matching the notch 203 is fixedly connected to the main mold 2.

[0046] The connecting pipe 204 is disposed on the upper side of the notch 203 .

[0047] A notch 203 is opened on the upper side of the auxiliary mold 202 so that the die-cast cold water plate forms a protrusion matching the notch 203, and the raw material bubbles are vibrated and move upward. Finally, the gas that is not completely discharged between the main mold 2 and the auxiliary mold 202 and the bubbles located in the upper layer of the raw material liquid are located at the notch 203. Finally, the protrusion of the cold water plate after die-casting is completed is sheared and polished, thereby effectively improving the quality of the die-casting of the cold water plate and preventing pits on the surface of the cold water plate.

[0048] Example 3: Reference Figure 1-Figure 7 , a cold water plate die-casting device for new energy vehicles is basically the same as Example 1, and further, a cooling pipe 501 and a return pipe 502 are arranged in the injection rod 4, a cooling box 5 is arranged on the base 1, and a third connecting pipe 503 is fixedly connected between the cooling pipe 501 and the output end of the cooling box 5, and a fourth connecting pipe 504 is fixedly connected between the return pipe 502 and the input end of the cooling box 5.

[0049] The controller 108 controls the cooling box 5 to cool the coolant in the cooling box 5, and transports the coolant to the injection rod 4 through the third connecting pipe 503 and the cooling pipe 501, and finally flows back to the cooling box 5 through the return pipe 502 and the fourth connecting pipe 504 for circulation, so as to cool down the injection rod 4, and effectively prevent the injection rod 4 from being overheated and affecting the operation of the boost cylinder 6.

[0050] It should be noted that the cooling box 5 is composed of a cooling component and a pump component, so that it forms a circulation loop and continuously cools the coolant.

[0051] Example 4: Reference Figure 1-Figure 7 , a cold water plate die-casting device for new energy vehicles is basically the same as Example 1, and further, an annular cavity 401 is arranged between the injection head 404 and the injection rod 4, and an inlet pipe 405 and a discharge pipe 406 connected to the annular cavity 401 are arranged in the injection rod 4, and a circulation box 407 is fixedly connected to the base 1, a first connecting pipe 408 is fixedly connected between the liquid supply end of the circulation box 407 and the liquid inlet pipe 405, a second connecting pipe 409 is fixedly connected between the liquid extraction end of the circulation box 407 and the discharge pipe 406, and a one-way valve is arranged in the liquid inlet pipe 405 and the discharge pipe 406.

[0052] When the injection head 404 moves back and forth, the annular cavity 401 changes. When the injection head 404 moves away from the injection rod 4, the annular cavity 401 becomes larger. At this time, the hot oil in the circulation box 407 enters the annular cavity 401 through the first connecting pipe 408 and the liquid inlet pipe 405 in turn. When the injection head 404 moves toward the injection rod 4, the annular cavity 401 becomes smaller. The injection head 404 transports the hot oil in the annular cavity 401 to the discharge pipe 406, and finally returns to the circulation box 407 through the second connecting pipe 409. The hot oil absorbs part of the heat of the injection head 404 and performs preliminary cooling, which can effectively prevent excessive heat from being conducted into the injection rod 4. In addition, the hot oil is blocked in the annular cavity 401, which effectively prevents the coolant in the injection rod 4 from over-cooling the injection head 404, causing the raw material at the injection head 404 to solidify prematurely.

[0053] The circulation box 407 has a constant temperature component and a pump component. The constant temperature component controls the temperature of the circulation box 407 within a certain range. The circulation box 407 is a sealed box with a high pressure inside. When the constant temperature component controls the temperature of the hot oil in the circulation box 407, the temperature of the hot oil is higher than the melting point of the raw material and lower than the temperature of the added raw material. The optimal hot oil temperature is the average of the melting point of the raw material and the temperature of the added raw material, which can be fine-tuned within a range according to specific circumstances.

[0054] Example 5: Reference Figure 1-Figure 7 The cold water plate die-casting device for new energy vehicles is basically the same as that in Example 1, and further, a plurality of heat conducting plates 507 are fixedly connected to the connecting rod 403.

[0055] The heat conducting plate 507 is provided with a plurality of mesh holes 508 .

[0056] A heat-insulating sleeve 506 is symmetrically fixedly connected inside the injection rod 4 , and both the liquid inlet pipe 405 and the liquid discharge pipe 406 match the heat-insulating sleeve 506 .

[0057] When the servo electric cylinder 402 drives the connecting rod 403 to move back and forth, the connecting rod 403 drives the heat conducting plate 507 to move back and forth in the injection rod 4. The heat conducting plate 507 swings back and forth, causing the coolant in the injection rod 4 to flow, thereby effectively improving the cooling efficiency of the injection rod 4.

[0058] Example 6: Reference Figure 1-Figure 7 The cold water plate die-casting device for new energy vehicles is basically the same as that of Example 1, and further, a solenoid valve 509 is provided in the cooling pipe 501 and the return pipe 502, and a plurality of water spray grooves 505 are provided on the cooling pipe 501 and the return pipe 502, and the water spray grooves 505 are arranged between the solenoid valve 509 and the servo electric cylinder 402, and the diameter of the water spray groove 505 from the water spray groove 505 close to the solenoid valve 509 to the water spray groove 505 close to the servo electric cylinder 402 gradually increases.

[0059] When the controller 108 controls the servo electric cylinder 402 to open and reciprocate, the controller 108 controls the two solenoid valves 509 to close at the same time. At this time, the coolant circulates on the side of the injection rod 4 close to the servo electric cylinder 402 to cool the injection rod 4. At this time, the temperature of the coolant in the injection rod 4 gradually decreases from the end close to the injection head 404 to the end close to the servo electric cylinder 402. While cooling the injection rod 4, the coolant is prevented from absorbing too much heat from the hot oil in the annular cavity 401 and affecting the cooling effect on the injection rod 4, and the hot oil temperature in the annular cavity 401 can be effectively prevented from being too low, causing the raw material at the injection head 404 to solidify.

[0060] The reciprocating heat conducting plate 507 replaces the coolant in the injection rod 4 step by step to even out the heat, thereby preventing the local temperature of the injection rod 4 from being too high.

[0061] When the controller 108 controls the servo electric cylinder 402 to close, the controller 108 controls the two solenoid valves 509 to open. At this time, most of the coolant circulates from the injection head 404 near the injection rod 4, thereby effectively cooling the injection head 404, so that the raw material in contact with the injection head 404 is quickly solidified and cooled, effectively preventing demolding defects caused by uneven cooling of the die-casting cold water plate, and effectively improving the cooling efficiency of the cold water plate.

[0062] Embodiment 7: A cold water plate die-casting method for new energy vehicles mainly comprises the following steps:

[0063] Step 1: The mold clamping mechanism 101 pushes the main mold 2 to fit with the auxiliary mold 202 through the driving rod 103;

[0064] Step 2: Add the melted raw material into the injection tube 3 from the feed port 301;

[0065] Step 3: The driving assembly drives the injection rod 4 to move toward the auxiliary mold 202. When the end of the injection rod 4 exceeds the feed port 301, the controller 108 controls the servo electric cylinder 402 to open, and the servo electric cylinder 402 drives the injection head 404 to vibrate back and forth through the connecting rod 403.

[0066] Step 4: When the injection head 404 moves to the set position, the controller 108 controls the servo electric cylinder 402 to retract and stop;

[0067] Step 5: Cooling the main mold 2 and the auxiliary mold 202 by a cooling mechanism;

[0068] Step 6: The mold clamping mechanism 101 drives the driving rod 103 to contract and remove the cold water plate.

[0069] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0070] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Cold water plate die casting device for new energy vehicles, including: A base (1) and a mold clamping mechanism (101), wherein the mold clamping mechanism (101) is fixed on the base (1), and is characterized in that it also includes: A fixing plate (105) fixed on the base (1); A plurality of limiting rods (102) are fixed between the fixing plate (105) and the mold clamping mechanism (101); A movable plate (104) sliding on the limiting rod (102); A driving rod (103) symmetrically arranged between the moving plate (104) and the mold clamping mechanism (101); A main mold (2) is arranged on the movable plate (104); The auxiliary mold (202) is arranged on the fixing plate (105), and the main mold (2) matches the auxiliary mold (202), and cooling mechanisms are arranged in both the main mold (2) and the auxiliary mold (202); A connecting pipe (204) is provided on the auxiliary mold (202); A vacuum mechanism (106) is arranged on the mold clamping mechanism (101), and an exhaust pipe (107) is arranged between the vacuum mechanism (106) and the connecting pipe (204); A controller (108) is arranged on the upper side of the base (1); A die-casting port (205) is arranged on the auxiliary mold (202); An injection tube (3) is fixed on one side of the fixed plate (105), and the injection tube (3) is connected to the die casting port (205); A feed port (301) is provided on the injection tube (3); An injection rod (4) slides in the injection tube (3); A driving assembly is arranged on the base (1), and is used to drive the injection rod (4) to move back and forth; A servo electric cylinder (402) is fixed inside the injection rod (4); A connecting rod (403) is sealingly slidable on the injection rod (4), and one end of the connecting rod (403) is fixedly connected to the output end of the servo electric cylinder (402); The injection head (404) is sealingly slidable in the injection tube (3), and the injection head (404) is fixedly connected to the connecting rod (403).

2. The cold water plate die-casting device for new energy vehicles according to claim 1, characterized in that: A notch (203) is provided in the auxiliary mold (202), and a protrusion (201) matching the notch (203) is fixedly connected to the main mold (2).

3. The cold water plate die-casting device for new energy vehicles according to claim 2, characterized in that: The connecting pipe (204) is arranged on the upper side of the notch (203).

4. The cold water plate die-casting device for new energy vehicles according to claim 1, characterized in that: The driving assembly comprises a booster cylinder (6) fixed on a base (1), a push rod (601) is sealed and slidable inside the booster cylinder (6), the push rod (601) is threadedly connected to the injection rod (4), and an oil pipe (602) is provided at the end of the booster cylinder (6).

5. The cold water plate die-casting device for new energy vehicles according to claim 1, characterized in that: A cooling pipe (501) and a return pipe (502) are arranged in the injection rod (4); a cooling box (5) is arranged on the base (1); a third connecting pipe (503) is fixedly connected between the cooling pipe (501) and the output end of the cooling box (5); and a fourth connecting pipe (504) is fixedly connected between the return pipe (502) and the input end of the cooling box (5).

6. The cold water plate die-casting device for new energy vehicles according to claim 1, characterized in that: An annular cavity (401) is provided between the injection head (404) and the injection rod (4); a liquid inlet pipe (405) and a liquid discharge pipe (406) communicating with the annular cavity (401) are provided in the injection rod (4); a circulation box (407) is fixedly connected to the base (1); a first connecting pipe (408) is fixedly connected between the liquid supply end of the circulation box (407) and the liquid inlet pipe (405); a second connecting pipe (409) is fixedly connected between the liquid extraction end of the circulation box (407) and the liquid discharge pipe (406); and one-way valves are provided in both the liquid inlet pipe (405) and the liquid discharge pipe (406).

7. The cold water plate die-casting device for new energy vehicles according to claim 5, characterized in that: A plurality of heat conducting plates (507) are fixedly connected to the connecting rod (403).

8. The cold water plate die-casting device for new energy vehicles according to claim 7, characterized in that: The heat conducting plate (507) is provided with a plurality of mesh holes (508).

9. The cold water plate die-casting device for new energy vehicles according to claim 6, characterized in that: A heat-insulating sleeve (506) is symmetrically fixedly connected inside the injection rod (4), and the liquid inlet pipe (405) and the liquid discharge pipe (406) are both matched with the heat-insulating sleeve (506).

10. A cold water plate die-casting method for new energy vehicles, using the cold water plate die-casting device for new energy vehicles according to claim 1, characterized in that: The main steps include: Step 1: The mold clamping mechanism (101) pushes the main mold (2) to fit with the auxiliary mold (202) through the driving rod (103); Step 2: adding the melted raw material into the injection tube (3) from the feed port (301); Step 3: The driving assembly drives the injection rod (4) to move toward the auxiliary mold (202). When the end of the injection rod (4) exceeds the feed port (301), the controller (108) controls the servo electric cylinder (402) to open, and the servo electric cylinder (402) drives the injection head (404) to vibrate back and forth through the connecting rod (403). Step 4: When the injection head (404) moves to the set position, the controller (108) controls the servo electric cylinder (402) to retract and stop; Step 5: Cooling the main mold (2) and the auxiliary mold (202) by means of a cooling mechanism; Step 6: The mold clamping mechanism (101) drives the driving rod (103) to contract and remove the cold water plate.

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