Integrated die-casting die for rear side plate of new energy automobile

Abstract

The invention relates to the technical field of automobile part production, in particular to an integrated die-casting die for a rear side plate of a new energy automobile, which comprises a rack, a die main body is arranged on the rack, and the die main body comprises a fixed die and a movable die; a cavity is arranged between the fixed mold and the movable mold, an adjustable cavity with variable volume is arranged in the cavity, an adjusting mechanism for adjusting the volume of the adjustable cavity is arranged on the rack, and a vacuum pump set for vacuumizing the cavity is arranged on the rack. According to the invention, the function of further stabilizing the negative pressure in the cavity under the condition of stopping vacuumizing is realized. Before injection, the size of the adjustable cavity is reduced through the adjusting mechanism, in the injection process, along with filling of the cavity with the molten metal, the size of the adjustable cavity is controlled to be increased through the adjusting mechanism, and the cavity is in a sealed state at the moment, so that the negative pressure in the cavity can be maintained through the increase of the size of the adjustable cavity, and the die-casting quality is guaranteed. The problem that negative pressure of a cavity is insufficient due to the fact that a vacuum valve of a traditional vacuum die-casting die is closed in advance is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive part production, and specifically relates to an integrated die-casting mold for the rear side panel of a new energy vehicle. Background Art

[0002] In order to improve production efficiency and reduce manufacturing costs, existing automotive parts are usually processed using integrated die-casting molds. In die-casting processing, due to the relatively complex structure and large volume of most automotive parts. In order to reduce porosity defects and improve product performance, it is usually necessary to use a vacuum pumping device to evacuate the cavity and then inject the molten metal. However, during the pouring process, if the closing time of the vacuum valve cannot be controlled properly, once the molten metal enters the vacuum valve, it will cause damage to the vacuum valve.

[0003] For this reason, the Chinese patent with the authorization announcement number CN222175903U discloses an integrated die-casting mold for the heating core of a new energy vehicle. Through the coordinated use of a fixed mold, a moving mold, a heating core, a feeding port, a cavity, a guide sleeve, a partition plate, a shaping component, and a vacuum pumping component, it can effectively evacuate the inside of the moving mold and the inside of the fixed mold after mold closing. That is, by adopting the method of overall mold evacuation, high airtightness of the heating core die-casting parts can be achieved, without a vacuum valve, and continuous evacuation is adopted throughout the process, and the aluminum liquid will not splash.

[0004] However, when producing large-volume parts, due to the long filling time of the aluminum liquid and the large temperature gradient, it may lead to unstable surface tension (such as the rupture of the oxide film or the destruction of the gas film). The method of relying only on the surface tension of the aluminum liquid to prevent the aluminum liquid from entering the suction holes with smaller diameters is not reliable enough. And for the traditional vacuum valve control method, after the vacuum valve is closed in advance, as the molten metal is injected, the cavity volume in the mold cavity decreases, which will lead to insufficient vacuum degree, thus affecting the die-casting quality. Summary of the Invention

[0005] Aiming at the above problems, an integrated die-casting mold for the rear side panel of a new energy vehicle is provided, which solves the problem of insufficient negative pressure in the mold cavity caused by the premature closing of the vacuum valve in the traditional vacuum die-casting mold through a frame, a mold body, an adjusting mechanism, and a vacuum pump group.

[0006] To solve the problems of the existing technology, the present invention provides an integrated die-casting mold for the rear side panel of a new energy vehicle, including a frame, on which a mold body is provided. The mold body includes a fixed mold and a moving mold, and there is a cavity between the fixed mold and the moving mold; there is an adjustable cavity with variable volume in the cavity; an adjusting mechanism for adjusting the volume of the adjustable cavity is provided on the frame; a vacuum pump group for evacuating the cavity is provided on the frame.

[0007] Preferably, a movable block is slidably arranged in the fixed mold, and the movable block is located in the adjustable cavity; the adjusting mechanism includes an adjusting component for controlling the sliding of the movable block.

[0008] Preferably, the movable block is provided with an air extraction hole communicated with the vacuum pump group; the movable block has an extended state and a contracted state under the control of the adjusting component, and when the movable block is in the extended state, the air extraction hole is communicated with the cavity.

[0009] Preferably, the adjusting component includes an adjusting plate and a connecting rod; the adjusting plate is movably arranged on the frame; the adjusting plate is connected with the movable block through the connecting rod; a linear driving component for driving the adjusting plate to move is arranged on the frame.

[0010] Preferably, a first elastic member is arranged on the adjusting plate, and two ends of the first elastic member are respectively connected with the adjusting plate and the frame; the linear driving component includes a linear driver and a push plate, and the push plate is in transmission connection with the driving end of the linear driver.

[0011] Preferably, the linear driving component includes a connecting block and a connecting rod; a telescopic rod is arranged on the connecting block, the telescopic rod is in sliding fit with the adjusting plate, a second elastic member is arranged on the telescopic rod, and two ends of the second elastic member are respectively connected with the telescopic rod and the adjusting plate; two ends of the connecting rod are respectively hinged with the connecting block and the push plate.

[0012] Preferably, a pressure sensor for detecting the contact state between the push plate and the adjusting plate is arranged on the push plate.

[0013] Preferably, a storage chamber for accommodating the movable block is arranged on the frame, and a cleaning bin for cleaning the movable block is arranged in the storage chamber.

[0014] Preferably, the cleaning bin is arranged in the storage chamber in a liftable manner, and a lifting component for controlling the movement of the cleaning bin is arranged on the frame.

[0015] Preferably, the lifting component includes a rack, a bracket and a rotating gear; there are two racks, and the two racks are respectively arranged on the cleaning bin and the adjusting plate; the bracket is arranged at the bottom of the storage chamber, the rotating gear is rotatably arranged on the bracket, and the two racks are both meshed and connected with the rotating gear.

[0016] The beneficial effects of the present invention compared with the prior art are: 1. The present invention realizes the function of further stabilizing the negative pressure in the cavity in the case of stopping vacuum pumping through a frame, a die body, an adjusting mechanism and a vacuum pump group. Before injection, the volume of the adjustable cavity is reduced through the adjusting mechanism. During the injection process, as the molten metal fills the cavity, the volume of the adjustable cavity is controlled to increase through the adjusting mechanism. At this time, the cavity is in a sealed state. Therefore, the increase in the volume of the adjustable cavity can maintain the negative pressure in the cavity and ensure the die-casting quality. It can further adjust the negative pressure state in the cavity when the vacuum valve is closed, solving the problem of insufficient negative pressure in the cavity caused by the premature closing of the vacuum valve in traditional vacuum die-casting molds.

[0017] 2. The present invention realizes the function of adjusting the volume of the adjustable cavity through a movable block and an adjusting component. By expanding and contracting the movable block to fill the adjustable cavity, linear adjustment of the volume of the adjustable cavity can be achieved, and it can also cooperate with the fixed die to stabilize the shape of the workpiece during die-casting. When adjusting the volume of the adjustable cavity, the adjusting component controls the expansion and contraction of the movable block. When the movable block moves towards the inside of the cavity, the volume of the adjustable cavity decreases. When the movable block moves away from the cavity, the volume of the adjustable cavity increases. Before the molten metal fills the cavity, the adjusting component adjusts the movable block to the contracted state, and then the die-casting process of the rear side panel of the automobile is completed through the cooperation of the fixed die, the movable block and the movable die.

[0018] 3. The present invention realizes the function of automatically closing the air extraction hole by arranging the air extraction hole on the movable block. In order to ensure the air extraction efficiency, when producing large-volume workpieces such as rear side panels, the aperture of the air extraction hole is generally large, and it is impossible to prevent the molten metal from entering the air extraction channel through the surface tension of the molten metal. Therefore, the air extraction hole is arranged on the movable block, and when the movable block is in the contracted state, the air extraction hole is automatically closed. Description of the Drawings

[0019] Figure 1 is a three-dimensional schematic diagram of an integrated die-casting mold for the rear side panel of a new energy vehicle according to the present invention.

[0020] Figure 2 is a three-dimensional schematic diagram of the frame, the die body and the adjusting mechanism in the mold closing process of an integrated die-casting mold for the rear side panel of a new energy vehicle according to the present invention.

[0021] Figure 3 is a three-dimensional schematic diagram of the frame, the fixed die and the adjusting mechanism in the reset state of an integrated die-casting mold for the rear side panel of a new energy vehicle according to the present invention.

[0022] Figure 4 is a three-dimensional schematic diagram of the storage chamber and the adjusting mechanism in the state where the movable block is in the reset state of an integrated die-casting mold for the rear side panel of a new energy vehicle according to the present invention.

[0023] Figure 5 is of the present inventionFigure 4 Partial enlarged schematic view at position A.

[0024] Figure 6 It is a three-dimensional schematic view of the storage chamber and the adjustment mechanism in an integrated die-casting mold for the rear side plate of a new energy vehicle of the present invention when the movable block is in a contracted state.

[0025] Figure 7 of the present invention Figure 6 Partial enlarged schematic view at position B.

[0026] Figure 8 It is a three-dimensional schematic view of the movable block and the adjustment mechanism in an integrated die-casting mold for the rear side plate of a new energy vehicle of the present invention.

[0027] Figure 9 of the present invention Figure 8 Partial enlarged schematic view at position C.

[0028] Figure 10 It is a three-dimensional schematic view of the linear drive assembly in an integrated die-casting mold for the rear side plate of a new energy vehicle of the present invention.

[0029] In the figure, the reference numerals are: 1, frame; 11, storage chamber; 111, cleaning chamber; 12, lifting assembly; 121, rack; 122, bracket; 123, rotating gear; 2, mold body; 21, fixed mold; 211, adjustable cavity; 22, movable mold; 23, movable block; 231, air extraction hole; 3, adjustment mechanism; 31, adjustment component; 311, adjustment plate; 312, connecting rod; 313, first elastic member; 32, linear drive assembly; 321, linear driver; 322, push plate; 3221, pressure sensor; 323, connecting block; 3231, telescopic rod; 3232, second elastic member; 324, connecting rod; 4, vacuum pump group. Detailed implementation manners

[0030] To further understand the features, technical means, specific purposes, and functions achieved by the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0031] Refer to Figure 1 and Figure 2 : An integrated die-casting mold for the rear side plate of a new energy vehicle, including a frame 1, a mold body 2 is provided on the frame 1, the mold body 2 includes a fixed mold 21 and a movable mold 22, and there is a cavity between the fixed mold 21 and the movable mold 22; an adjustable cavity 211 with variable volume is provided in the cavity; an adjustment mechanism 3 for adjusting the volume of the adjustable cavity 211 is provided on the frame 1; a vacuum pump group 4 for evacuating the cavity is provided on the frame 1.

[0032] The present invention realizes the function of further stabilizing the negative pressure in the cavity under the condition of stopping vacuum pumping through the frame 1, the die body 2, the adjusting mechanism 3 and the vacuum pump group 4. Before injection, the volume of the adjustable cavity 211 is reduced through the adjusting mechanism 3. During the injection process, as the molten metal fills the cavity, the volume of the adjustable cavity 211 is controlled to increase through the adjusting mechanism 3. At this time, the cavity is in a sealed state. Therefore, the increase in the volume of the adjustable cavity 211 can maintain the negative pressure in the cavity and ensure the die-casting quality. It can further adjust the negative pressure state in the cavity when the vacuum valve is closed, solving the problem that the negative pressure in the cavity is insufficient due to the premature closing of the vacuum valve in traditional vacuum die-casting molds. After the fixed die 21 and the moving die 22 are butted, the operator first reduces the volume of the adjustable cavity 211 through the adjusting mechanism 3, and then performs vacuum pumping operation through the vacuum pump group 4. A compression sealing strip is provided between the moving die 22 and the fixed die 21, and the compression sealing strip is preferably a silica gel strip. When the vacuum degree in the cavity reaches the specified range, the vacuum valve is closed, making the cavity in a sealed state. Then, the injection operation is carried out. After the molten metal enters the cavity, it continuously fills the cavity in the cavity, making the volume of the cavity shrink. At this time, the air pressure in the cavity will increase as the volume shrinks. At this time, the volume of the adjustable cavity 211 is controlled to increase through the adjusting mechanism 3, and the total amount of gas in the cavity always remains unchanged. Therefore, increasing the volume of the adjustable cavity 211 can maintain the negative pressure state in the cavity and avoid the problem that the negative pressure in the cavity is insufficient and affects the injection quality.

[0033] Refer to Figure 2 and Figure 3 : A movable block 23 is slidably arranged in the fixed die 21, and the movable block 23 is located in the adjustable cavity 211; the adjusting mechanism 3 includes an adjusting component 31 for controlling the sliding of the movable block 23.

[0034] The present invention realizes the function of adjusting the volume of the adjustable cavity 211 through the movable block 23 and the adjusting component 31. By expanding and contracting the movable block 23 to fill the adjustable cavity 211, the linear adjustment of the volume of the adjustable cavity 211 can be realized, and the shape of the workpiece can be stabilized in cooperation with the fixed die 21 during the die-casting process. The movable block 23 is in close fit with the inner wall of the cavity. The shape of the movable block 23 fits the shape of the cavity, so that the overall seal of the cavity can be ensured during the expansion and contraction process of the movable block 23. When adjusting the volume of the adjustable cavity 211, the adjusting component 31 is used to control the expansion and contraction of the movable block 23. When the movable block 23 moves towards the inside of the cavity, the volume of the adjustable cavity 211 shrinks. When the movable block 23 moves away from the cavity, the volume of the adjustable cavity 211 increases. Before the molten metal fills the cavity, the movable block 23 is adjusted to fully contract through the adjusting component 31, and then the die-casting process of the rear side panel of the automobile is completed through the cooperation of the fixed die 21, the movable block 23 and the moving die 22.

[0035] Refer to Figure 4 andFigure 5 : An air extraction hole 231 communicating with the vacuum pump group 4 is provided on the movable block 23; the movable block 23 has an extended state and a contracted state under the control of the adjustment assembly 31, and when the movable block 23 is in the extended state, the air extraction hole 231 communicates with the cavity.

[0036] The present invention realizes the function of automatically closing the air extraction hole 231 by arranging the air extraction hole 231 on the movable block 23. In order to ensure the air extraction efficiency, when producing large-volume workpieces such as the rear side plate, the aperture of the air extraction hole 231 is generally large, and it is impossible to avoid the metal liquid from entering the air extraction channel through the surface tension of the metal liquid. For this reason, the air extraction hole 231 is arranged on the movable block 23, and when the movable block 23 is in the contracted state, the movable block 23 automatically closes the air extraction hole 231. During the processing, when the mold body 2 is in the closed mold state, first, the adjustment assembly 31 is used to control the movable block 23 to reset, so that the movable block 23 is in the extended state, and then the vacuum pump group 4 is used to evacuate the air. When the vacuum degree in the cavity reaches the specified range, the movable block 23 further moves upward under the action of negative pressure. At this time, the adjustment mechanism 3 is used to apply pressure to the movable block 23, so that the movable block 23 has a tendency to move away from the cavity, and the movable block 23 is blocked by the negative pressure and remains stationary. Then, the injection action is carried out. As the metal liquid is filled into the cavity, the air pressure in the cavity of the cavity increases, the air pressure received by the movable block 23 decreases, and the movable block 23 moves under the pressure of the adjustment assembly 31 to stabilize the negative pressure in the cavity. And as the metal liquid continues to be injected, the vacuum state in the cavity can be continuously adjusted, thereby ensuring the processing quality of the workpiece.

[0037] Refer to Figures 4 - 7 : The adjustment assembly 31 includes an adjustment plate 311 and a connecting rod 312; the adjustment plate 311 is movably arranged on the frame 1; the adjustment plate 311 is connected to the movable block 23 through the connecting rod 312; a linear drive assembly 32 for driving the adjustment plate 311 to move is provided on the frame 1.

[0038] The present invention realizes the function of controlling the movement of the movable block 23 through the adjustment plate 311, the connecting rod 312 and the linear drive assembly 32. Two movable blocks 23 are provided on both sides of the fixed mold 21, two adjustable cavities 211 are provided in the cavity, and the two movable blocks 23 are respectively located in the two adjustable cavities 211. Two connecting rods 312 are provided on the adjustment plate 311, and the adjustment plate 311 is connected to the two movable blocks 23 through the two connecting rods 312 respectively. In the working state, the adjustment plate 311 is driven to move by the linear drive assembly 32, and the adjustment plate 311 drives the two movable blocks 23 to move through the connecting rod 312, thereby adjusting the volume of the two adjustable cavities 211 and stabilizing the negative pressure state in the cavity.

[0039] Refer to Figures 8 - 10The adjusting plate 311 is provided with a first elastic member 313, and the two ends of the first elastic member 313 are respectively connected to the adjusting plate 311 and the frame 1; the linear driving assembly 32 includes a linear driver 321 and a push plate 322, and the push plate 322 is in transmission connection with the driving end of the linear driver 321.

[0040] The present invention realizes the function of controlling the movement of the adjusting plate 311 through the first elastic member 313, the linear driver 321 and the push plate 322. The linear driver 321 is preferably a linear cylinder, and the frame 1 is provided with a controller for human-computer interaction, and the linear driver 321 is electrically connected to the controller. When the linear driver 321 does not drive the push plate 322 to extend, the adjusting plate 311 is in a reset state under the elastic force of the first elastic member 313, and at this time, the movable block 23 is in an extended state. When the vacuum degree in the cavity reaches the specified range, the movable block 23 further moves upward under the negative pressure. At this time, the controller sends a signal to the linear driver 321, and the linear driver 321 drives the push plate 322 to extend. After the push plate 322 contacts the adjusting plate 311, it pushes the adjusting plate 311 to move downward, thereby driving the movable block 23 to move downward, and controlling the air pressure of the linear driver 321 so that the linear driver 321 can provide a constant thrust, thereby maintaining the air pressure in the cavity stable. When the air pressure in the cavity changes, the adjusting plate 311 can move a corresponding distance under the push of the linear driver 321.

[0041] Refer to Figures 8 - 10 The linear driving assembly 32 includes a connecting block 323 and a connecting rod 324; the connecting block 323 is provided with a telescopic rod 3231, the telescopic rod 3231 is slidably matched with the adjusting plate 311, and the telescopic rod 3231 is provided with a second elastic member 3232, and the two ends of the second elastic member 3232 are respectively connected to the telescopic rod 3231 and the adjusting plate 311; the two ends of the connecting rod 324 are respectively hinged to the connecting block 323 and the push plate 322.

[0042] The present invention realizes the functions of connecting the adjusting plate 311 and the pushing plate 322 through the connecting block 323, the telescopic rod 3231, the second elastic member 3232 and the connecting rod 324, so that while the pushing plate 322 can drive the adjusting plate 311 to move, a certain degree of movement freedom of the adjusting plate 311 is reserved. When the linear actuator 321 controls the pushing plate 322 to reset, the pushing plate 322 separates from the adjusting plate 311 first. At this time, the adjusting plate 311 moves upward under the elastic force of the first elastic member 313. After the pushing plate 322 is reset, there is a certain distance between the adjusting plate 311 and the pushing plate 322. As the vacuum pump group 4 continues to work, the movable block 23 moves further upward under the negative pressure. Then the linear actuator 321 drives the pushing plate 322 to extend. When the pushing plate 322 approaches the adjusting plate 311, it pushes the connecting block 323 to move away from the adjusting plate 311. When the pushing plate 322 contacts the adjusting plate 311, it pushes the adjusting plate 311 to move, thereby controlling the contraction of the movable block 23. After the processing is completed, the linear actuator 321 is used to control the pushing plate 322 to reset. If the workpiece is tightly combined with the fixed mold 21 and the movable block 23 cannot move upward smoothly, at this time, the pushing plate 322 pulls the connecting block 323 through the connecting rod 324, and then pulls the adjusting plate 311 to move upward, so that the movable block 23 can smoothly push the workpiece out of the fixed mold 21 and complete the reset action. The movable block 23 plays a role in ejecting the material during the reset process.

[0043] Refer to Figure 10 : A pressure sensor 3221 for detecting the contact state between the pushing plate 322 and the adjusting plate 311 is provided on the pushing plate 322.

[0044] The present invention realizes the function of controlling the linear actuator 321 to start automatically through the pressure sensor 3221. In the working state, when the vacuum pump group 4 performs a vacuum pumping action, the air pressure in the cavity decreases. When the movable block 23 moves further upward from the reset state under the negative pressure, the movable block 23 drives the adjusting plate 311 to move upward through the connecting rod 312. When the adjusting plate 311 contacts the pushing plate 322, the pressure sensor 3221 senses the contact state, feeds back a signal to the controller, the controller sends a signal to the linear actuator 321, and the linear actuator 321 drives the pushing plate 322 to extend and applies a constant thrust to the adjusting plate 311 through the push rod. Through the setting of the pressure sensor 3221, automatic control can be carried out, and the intelligence of the mold can be improved.

[0045] Refer to Figures 4 - 6 : A storage chamber 11 for accommodating the movable block 23 is provided on the frame 1, and a cleaning chamber 111 for cleaning the movable block 23 is provided in the storage chamber 11.

[0046] The present invention realizes the function of maintaining the movable block 23 through the storage chamber 11 and the cleaning chamber 111. Since the movable block 23 needs to slide on the fixed mold 21, in order to avoid leakage at the connection between the movable block 23 and the fixed mold 21, it is necessary to maintain the movable block 23 to prevent impurities from adhering to the movable block 23 and causing severe wear between the movable block 23 and the fixed mold 21 during the sliding process. For this purpose, a storage chamber 11 and a cleaning chamber 111 are provided, and a pipeline for transporting cleaning liquid is arranged in the cleaning chamber 111. When the movable block 23 changes from the extended state to the retracted state, the movable block 23 moves from the adjustable chamber into the storage chamber 11, and then the cleaning liquid is sprayed through the pipeline in the cleaning chamber 111 to clean the movable block 23. At the same time, the air extraction holes 231 on the movable block 23 can also be cleaned and maintained, improving the service life of the movable block 23.

[0047] Refer to Figure 8 and Figure 9 : The cleaning chamber 111 is arranged in the storage chamber 11 in a liftable manner, and a lifting component 12 for controlling the movement of the cleaning chamber 111 is provided on the frame 1.

[0048] The present invention realizes the function of controlling the lifting of the cleaning chamber 111 through the lifting component 12, and the function of moving the cleaning chamber 111 out of the storage chamber 11 to facilitate the maintenance of the cleaning chamber 111 by the operator. Since the movable block 23 is only in the retracted state during the processing, in order to ensure the stable state of the movable block 23, it is necessary to ensure the sealing performance of the storage chamber 11. For this purpose, a lifting component 12 for controlling the movement of the cleaning chamber 111 is provided. The cleaning chamber 111 is moved out of the storage chamber 11 to maintain the cleaning chamber 111, avoiding directly opening the storage chamber 11 and affecting the lifting of the movable block 23.

[0049] Refer to Figure 8 and Figure 9 : The lifting component 12 includes a rack 121, a bracket 122, and a rotating gear 123; there are two racks 121, and the two racks 121 are respectively arranged on the cleaning chamber 111 and the adjusting plate 311; the bracket 122 is arranged at the bottom of the storage chamber 11, the rotating gear 123 is rotatably arranged on the bracket 122, and both racks 121 are meshed with the rotating gear 123.

[0050] The present invention realizes the function of automatically controlling the movement of the cleaning bin 111 when the adjusting plate 311 moves through the rack 121, the bracket 122 and the rotating gear 123. When the linear actuator 321 drives the adjusting plate 311 to move downward, the adjusting plate 311 drives the movable block 23 to move downward through the connecting rod 312. At the same time, the adjusting plate 311 drives the rotating gear 123 to rotate through the rack 121, and the torque transmitted by the rotating gear 123 drives the rack 121 on the cleaning bin 111 to move, thereby driving the cleaning bin 111 to move upward, and the cleaning bin 111 is used to clean and maintain the movable block 23. After the die-casting forming of the workpiece is completed, the linear actuator 321 is used to control the adjusting plate 311 to move upward and reset. During the reset process, the adjusting plate 311 drives the movable block 23 to move upward, and the ejecting action is completed through the movable block 23. At the same time, the adjusting plate 311 drives the cleaning bin 111 to move downward through the transmission of the rack 121 and the rotating gear 123, so as to facilitate the operator to maintain the cleaning bin 111 during the blanking process, realize the automatic processing of the whole process, and improve the production efficiency.

[0051] The above embodiments only represent one or several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An integrated die-casting mold for a rear side panel of a new energy vehicle, comprising a frame (1), a mold body (2) being arranged on the frame (1), the mold body (2) comprising a fixed mold (21) and a movable mold (22), and a mold cavity being provided between the fixed mold (21) and the movable mold (22); It is characterized in that The mold cavity has an adjustable cavity (211) with a variable volume; An adjustment mechanism (3) for adjusting the volume of the adjustable cavity (211) is provided on the frame (1); A vacuum pump group (4) for evacuating the mold cavity is provided on the frame (1).

2. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 1, characterized in that: A movable block (23) is slidably disposed in the fixed mold (21), and the movable block (23) is located in the adjustable cavity (211); The adjustment mechanism (3) comprises an adjustment component (31) for controlling the sliding of the movable block (23).

3. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 2, characterized in that: The movable block (23) is provided with an air extraction hole (231) which is in communication with the vacuum pump group (4); The movable block (23) has an extended state and a retracted state under the control of the adjustment component (31); when the movable block (23) is in the extended state, the air extraction hole (231) is in communication with the mold cavity.

4. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 2, characterized in that: The adjustment assembly (31) comprises an adjustment plate (311) and a connecting rod (312); The adjustment plate (311) is movably arranged on the frame (1); The adjustment plate (311) is connected to the movable block (23) via a connecting rod (312); The frame (1) is provided with a linear drive assembly (32) for driving the adjustment plate (311) to move.

5. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 4, characterized in that: A first elastic member (313) is provided on the adjustment plate (311), and two ends of the first elastic member (313) are respectively connected to the adjustment plate (311) and the frame (1); The linear drive assembly (32) comprises a linear drive (321) and a push plate (322), and the push plate (322) is drivingly connected to the driving end of the linear drive (321).

6. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 5, characterized in that: The linear drive assembly (32) comprises a connecting block (323) and a connecting rod (324); A telescopic rod (3231) is provided on the connecting block (323), the telescopic rod (3231) and the adjusting plate (311) are slidably matched, a second elastic member (3232) is provided on the telescopic rod (3231), and two ends of the second elastic member (3232) are respectively connected to the telescopic rod (3231) and the adjusting plate (311); Both ends of the connecting rod (324) are hinged to the connecting block (323) and the pushing plate (322) respectively.

7. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 5, characterized in that: The push plate (322) is provided with a pressure sensor (3221) for detecting the contact state between the push plate (322) and the adjustment plate (311).

8. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 4, characterized in that: A storage chamber (11) for accommodating the movable block (23) is provided on the frame (1), and a cleaning chamber (111) for cleaning the movable block (23) is provided in the storage chamber (11).

9. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 8, characterized in that: The cleaning bin (111) is arranged in a liftable manner in the storage chamber (11), and a lifting assembly (12) for controlling the movement of the cleaning bin (111) is provided on the frame (1).

10. The integrated die-casting mold for the rear side panel of a new energy vehicle according to claim 9, characterized in that: The lifting assembly (12) comprises a rack (121), a bracket (122) and a rotating gear (123); Two racks (121) are provided, and the two racks (121) are respectively arranged on the cleaning bin (111) and the adjustment plate (311); The bracket (122) is arranged at the bottom of the storage chamber (11); the rotating gear (123) is rotatably arranged on the bracket (122); and the two racks (121) are meshingly connected with the rotating gear (123).

Images