Die-casting die convenient to cool and used for manufacturing new energy automobile electric drive shell

Abstract

The invention discloses a convenient-to-cool die-casting die for manufacturing a new energy automobile electric drive shell, and relates to the technical field of die casting. The die-casting die convenient to cool and used for manufacturing the new energy automobile electric drive shell comprises a rack, a movable die mechanism and a fixed die mechanism, the movable die mechanism comprises an air cylinder and a movable die block, guide sleeves are installed in the middle of the top of the movable die block and the middle of the bottom of the movable die block, a sprue bush is installed at the top of the movable die block, and a cavity is formed in the middle of the outer side of the movable die block; the fixed mold mechanism comprises a fixed mold plate and a sliding seat, a sliding block mold core is installed at the position, close to the middle of the outer side of the fixed mold plate, of the outer side of the sliding seat, and guide columns are fixedly installed at the top and the bottom of the fixed mold plate correspondingly; and a tensioning assembly is mounted on the outer side of the fixed mold plate and close to the sliding seat, so that the purpose of preventing shaking is achieved, guiding, shaking reduction and rapid cooling can be performed, and die-casting forming is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of die casting, and particularly to a die casting mold for manufacturing an electric drive housing of a new energy vehicle that is convenient for cooling. Background Art

[0002] Die casting mold is a method of casting liquid die forging, a process completed on a special die casting forging machine. Its basic process is: the molten metal is first cast into the mold cavity at low speed or high speed. The mold has a movable cavity surface, which is pressurized and forged during the cooling process of the molten metal, eliminating the shrinkage cavity and porosity defects of the blank, and also making the internal structure of the blank reach the broken grains in the forged state. The comprehensive mechanical properties of the blank are significantly improved. Die casting molds play an important role in industrial production. With the continuous development of technology and the rapid progress of society, the application of die casting molds is also increasing.

[0003] Currently, during the die casting process, during the mold opening and closing process, vibration is likely to occur, resulting in the mold shaking. In severe cases, it will also shift, affecting the die casting quality of the product. Summary of the Invention

[0004] To achieve the above objectives, the present invention is realized through the following technical solutions: A die casting mold for manufacturing an electric drive housing of a new energy vehicle that is convenient for cooling, including a frame, and a gantry is fixedly installed at the side of the top of the frame; A moving mold mechanism, which is used for mold opening and closing and removing the electric drive housing of the vehicle. The moving mold mechanism is installed at the top of the frame and at one end away from the gantry; Among them, the moving mold mechanism includes a cylinder and a moving mold block. The cylinder is installed at the top of the frame and at one end away from the gantry. The moving mold block is installed at the telescopic end of the cylinder. Guide sleeves are installed at the middle of the top and the middle of the bottom of the moving mold block. A sprue bushing is installed at the top of the moving mold block. A cavity is opened at the middle of the outside of the moving mold block. A support shaft is fixedly installed at the middle of the inner cavity of the cavity. An insert is installed at one end of the support shaft away from the inner wall of the cavity; A fixed mold mechanism, which is used for sealing and die casting forming. The fixed mold mechanism is installed outside the gantry and on the side close to the moving mold block; Among them, the fixed mold mechanism includes a fixed mold plate and a sliding seat. The fixed mold plate is installed on the outer side of the gantry and close to the moving module. The sliding seat is installed in the middle inside the fixed mold plate. A slider die core is installed on the outer side of the sliding seat and close to the middle of the outer side of the fixed mold plate. Guide columns are fixedly installed at the top and bottom of the fixed mold plate. Ball bearings are installed on the outer cylindrical surface of the guide columns for rolling. A tensioning assembly is installed on the outer side of the fixed mold plate and close to the sliding seat. A circular channel is opened at the center of the slider die core. By the elongation of the telescopic end of the cylinder, a driving force is applied to the moving module through the telescopic end of the cylinder. Under the support and guidance of the guide columns, the moving module can perform linear movement, so that the moving module can be closely attached to the fixed mold plate, and then the mold can be closed, making the slider die core located inside the cavity. When the telescopic end of the cylinder contracts, a pulling force is applied to the moving module through the telescopic end of the cylinder, so that the moving module can move in the reverse direction, thereby separating the moving module from the fixed mold plate to form an open mold, making the mold opening and closing convenient.

[0005] Preferably, the cylinder is installed horizontally, and the moving module and the cylinder are installed at the same height. There are two sprue bushes, and the two sprue bushes are symmetrically installed along the guide sleeve.

[0006] Preferably, the moving module and the fixed mold plate are installed at the same height, and the guide columns pass through the center of the guide sleeve.

[0007] Under the support and guidance of the guide columns, as the moving module performs linear movement, and since the guide columns pass through the center of the guide sleeve, the guide sleeve will be driven by the moving module to move together, so that the ball bearings can roll. By using rolling friction, the friction resistance is reduced, making the overall movement of the moving module smooth and not prone to jamming, which helps the mold opening and closing to proceed smoothly.

[0008] Preferably, the guide columns are installed horizontally, and the ball bearings are evenly installed on the outer cylindrical surface of the guide columns.

[0009] Preferably, the tensioning assembly includes a connecting plate which is fixedly installed on the outer side of the fixed template near the gantry by screws. One end of the connecting plate away from the fixed template is fixedly installed with a hydraulic cylinder. The telescopic end of the hydraulic cylinder is fixedly installed with a locking rod. The outer cylindrical surface of the locking rod is slidably installed with the sliding seat, and the locking rod passes through the center of the sliding seat. A T-shaped groove is formed in the outer cylindrical surface of the locking rod at the end away from the hydraulic cylinder. A tensioning block is slidably installed in the T-shaped groove. A return spring is fixedly installed between the outer side of the tensioning block and the inner wall of the T-shaped groove. When the moving module moves towards the fixed template for mold closing, under the support of the support shaft, one end of the insert away from the support shaft extends into the circular channel. The telescopic end of the hydraulic cylinder is extended, so that the locking rod is pushed to extend into the circular channel. The top of the tensioning block is attached to the inner wall of the insert, so that the telescopic end of the hydraulic cylinder continuously applies a pushing force to the locking rod. Under the guidance of the T-shaped groove, the tensioning block slides in the T-shaped groove, and the return spring is compressed. Considering that the bottom of the inner cavity of the T-shaped groove is an inclined plane with an inclination of ten degrees, the tensioning block can make a radial movement to achieve the purpose of tensioning, so that the tensioning block is not likely to fall off. The structure interaction is fully utilized to connect the mechanisms together.

[0010] Preferably, there are two T-shaped grooves, and the two T-shaped grooves are symmetrically installed along the axis in the middle of the locking rod. The bottom of the inner cavity of the T-shaped groove is an inclined plane. When the telescopic end of the hydraulic cylinder contracts, the locking rod is pulled, and the tensioning block is moved out of the insert. Under the elastic force of the return spring, the tensioning block moves in the reverse direction to reset, which is convenient for subsequent reciprocating tensioning work.

[0011] Preferably, the return spring is installed in the middle of the T-shaped groove. There are two tensioning blocks, and the two tensioning blocks are symmetrically installed along the axis in the middle of the locking rod.

[0012] Preferably, a cooling mechanism is installed at the bottom of the inner cavity of the frame and near the moving module. The cooling mechanism includes a cooling box and a liquid flow channel. The cooling box is installed at the bottom of the inner cavity of the frame and near the cylinder. The liquid flow channel is opened inside the moving module and near the cavity. The cooling box is installed directly below the cylinder. A sewage outlet is installed at the side of the cooling box near the bottom. A right-angle pipe is installed at the side of the top of the cooling box. A delivery pump is installed outside the cooling box and near the moving module. A first pipe is connected between the liquid outlet of the delivery pump and the liquid inlet of the liquid flow channel. A second pipe is connected between the side of the top of the cooling box and the liquid outlet of the liquid flow channel. Heat-conducting sheets are fixedly installed outside the moving module and near the cylinder. Oval holes are opened at the corresponding positions outside the heat-conducting sheets. Start the delivery pump to work. Use the liquid inlet of the delivery pump to suck out part of the coolant in the cooling box. Under the transportation of the first pipe, the coolant enters the liquid flow channel. Combining with the principle of heat transfer, the coolant in the liquid flow channel absorbs the heat in the cavity, so as to cool the automotive electric drive housing in the cavity. And as the coolant enters the second pipe and is discharged into the cooling box in time, such a cycle is formed, and the heat can be taken out and dissipated.

[0013] The liquid inlet of the delivery pump extends into the cooling box. The first pipe and the second pipe are both flexible hoses. The liquid flow channel is curved. By using the curved shape of the liquid flow channel, the contact area between the coolant and the moving module can be increased, and the heat absorption efficiency in the cavity can be increased.

[0014] Preferably, the heat-conducting sheets are evenly installed outside the moving module and near the cylinder. The heat-conducting sheets extend into the liquid flow channel. By using the heat-conducting sheets extending into the liquid flow channel, when the coolant flows inside the liquid flow channel, the heat-conducting sheets conduct the heat in the coolant, so as to achieve multi-stage heat dissipation.

[0015] The present invention provides a die-casting mold for manufacturing an automotive electric drive housing of a new energy vehicle, which is convenient for cooling. It has the following beneficial effects: First, for the die-casting mold for manufacturing an automotive electric drive housing of a new energy vehicle, which is convenient for cooling, the driving force is applied to the moving module through the telescopic end of the cylinder. Under the support and guidance of the guide posts, the moving module can move linearly, so that the moving module can be closely attached to the fixed template, and the mold can be closed. The slider core is located inside the cavity. When the telescopic end of the cylinder retracts, the pulling force is applied to the moving module through the telescopic end of the cylinder, so that the moving module moves in the reverse direction, so that the moving module is separated from the fixed template, forming an open mold, making the mold opening and closing convenient.

[0016] Second, for the die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling, under the support and guidance of the guide posts, it moves linearly along with the moving module. And since the guide posts pass through the center of the guide sleeves, the guide sleeves will be driven by the moving module to move together, enabling the balls to roll. By using rolling friction, the frictional resistance is reduced, making the overall movement of the moving module smooth and less likely to get stuck, which helps the mold opening and closing to proceed smoothly.

[0017] Third, for the die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling, when the telescopic end of the hydraulic cylinder extends, the locking rod is pushed and extended into the interior of the circular channel. With the top of the tensioning block fitting against the inner wall of the insert, the telescopic end of the hydraulic cylinder continuously exerts a driving force on the locking rod. And under the guidance of the T-shaped groove, the tensioning block slides within the T-shaped groove. Combining with the bottom of the inner cavity of the T-shaped groove being an inclined plane with an inclination of ten degrees, the tensioning block can make a radial movement to achieve the purpose of tensioning, thus making it less likely for the tensioning block to fall off.

[0018] Fourth, for the die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling, when the telescopic end of the hydraulic cylinder contracts, the locking rod is pulled, and the tensioning block is moved out of the interior of the insert. Under the elastic force of the return spring, the tensioning block moves in the reverse direction for resetting, which is convenient for subsequent reciprocating tensioning work.

[0019] Fifth, for the die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling, the coolant in part of the cooling tank is sucked out through the liquid inlet of the delivery pump. Under the conveyance of the first pipeline, the coolant enters the liquid flow channel. Combining with the heat transfer principle, the coolant in the liquid flow channel absorbs the heat in the cavity, thereby cooling the electric drive housing in the cavity. And as the coolant enters the second pipeline and is promptly discharged into the interior of the cooling tank, such a cycle is formed, and the heat can be taken out and dissipated.

[0020] Sixth, for the die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling, by using the liquid flow channel in a curved shape, the contact area between the coolant and the moving module can be increased, and the heat absorption efficiency in the cavity can be increased.

[0021] Seventh, for the die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling, by using the heat conduction fins extending into the interior of the liquid flow channel, when the coolant flows inside the liquid flow channel, the heat conduction fins conduct out the heat in the coolant, thus realizing multi-stage heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the overall die-casting mold used in the manufacture of the electric drive housing of a new energy vehicle that is convenient for cooling according to the present invention; Figure 2Schematic bottom view structure diagram of a die-casting mold for manufacturing an electric drive housing of a new energy vehicle, which is convenient for cooling, according to the present invention; Figure 3 Schematic connection structure diagram between the moving die mechanism and the frame according to the present invention; Figure 4 Schematic overall structure diagram of the moving die mechanism according to the present invention; Figure 5 Schematic connection structure diagram between the fixed die mechanism and the gantry according to the present invention; Figure 6 Schematic overall structure diagram of the fixed die mechanism according to the present invention; Figure 7 Schematic overall structure diagram of the tensioning assembly according to the present invention; Figure 8 Schematic connection structure diagram between the cooling mechanism and the frame according to the present invention; Figure 9 Schematic overall structure diagram of the cooling mechanism according to the present invention.

[0023] In the figure: 1, frame; 2, gantry; 3, moving die mechanism; 4, fixed die mechanism; 5, cooling mechanism; 31, cylinder; 32, moving die block; 33, guide bushing; 34, sprue bushing; 35, cavity; 36, support shaft; 37, insert; 41, fixed template; 42, slide base; 43, slide block core; 44, guide post; 45, ball; 46, tensioning assembly; 47, circular channel; 461, connecting plate; 462, hydraulic cylinder; 463, locking rod; 464, T-shaped groove; 465, tensioning block; 466, return spring; 51, cooling box; 52, liquid flow channel; 53, sewage outlet; 54, right-angle pipe; 55, delivery pump; 56, first pipe; 57, second pipe; 58, heat conducting sheet; 59, oval hole. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] The first embodiment is as follows Figures 1 to 5 shown, the present invention provides a technical solution: A die-casting mold for manufacturing an electric drive housing of a new energy vehicle, which is convenient for cooling, includes a frame 1, and a gantry 2 is fixedly installed at the side of the top of the frame 1; A moving die mechanism 3, which is used for mold opening and closing and removing the electric drive housing of the vehicle, and the moving die mechanism 3 is installed at the top of the frame 1 and at one end far from the gantry 2; Among them, the moving die mechanism 3 includes a cylinder 31 and a moving die block 32. The cylinder 31 is installed at the top of the frame 1 and at one end far from the gantry 2. The moving die block 32 is installed at the telescopic end of the cylinder 31. Guide sleeves 33 are installed at the middle of the top and the middle of the bottom of the moving die block 32. A sprue bushing 34 is installed at the top of the moving die block 32. A cavity 35 is formed at the middle of the outer side of the moving die block 32. A support shaft 36 is fixedly installed at the middle of the inner cavity of the cavity 35. An insert 37 is installed at one end of the support shaft 36 away from the inner wall of the cavity 35. The cylinder 31 is installed horizontally, and the moving die block 32 and the cylinder 31 are installed at the same height. There are two sprue bushings 34, and the two sprue bushings 34 are symmetrically installed along the guide sleeves 33.

[0026] The fixed die mechanism 4 is used for plugging and die casting. The fixed die mechanism 4 is installed on the outer side of the gantry 2 and on the side close to the moving die block 32. Among them, the fixed die mechanism 4 includes a fixed template 41 and a sliding seat 42. The fixed template 41 is installed on the outer side of the gantry 2 and on the side close to the moving die block 32. The sliding seat 42 is installed at the middle of the inside of the fixed template 41. A slider die core 43 is installed on the outer side of the sliding seat 42 and at the middle of the outer side of the fixed template 41. Guide columns 44 are fixedly installed at the top and the bottom of the fixed template 41. Ball bearings 45 are rotatably installed on the outer cylindrical surface of the guide columns 44. A tensioning assembly 46 is installed on the outer side of the fixed template 41 and at the position close to the sliding seat 42. A circular channel 47 is formed at the center of the slider die core 43. By extending the telescopic end of the cylinder 31, a driving force is applied to the moving die block 32 through the telescopic end of the cylinder 31. Under the support and guidance of the guide columns 44, the moving die block 32 can move linearly, so that the moving die block 32 can be closely attached to the fixed template 41, and then the mold can be closed, and the slider die core 43 can be located inside the cavity 35. When the telescopic end of the cylinder 31 contracts, a pulling force is applied to the moving die block 32 through the telescopic end of the cylinder 31, so that the moving die block 32 can move in the reverse direction, thereby separating the moving die block 32 from the fixed template 41 to form mold opening, making the mold opening and closing convenient.

[0027] The moving die block 32 and the fixed template 41 are installed at the same height. The guide columns 44 pass through the centers of the guide sleeves 33. Under the support and guidance of the guide columns 44, as the moving die block 32 moves linearly, and because the guide columns 44 pass through the centers of the guide sleeves 33, the guide sleeves 33 will be driven by the moving die block 32 to move together, so that the ball bearings 45 can roll. By using rolling friction, the friction resistance is reduced, making the overall movement of the moving die block 32 smooth and not prone to jamming.

[0028] The guide columns 44 are installed horizontally, and the ball bearings 45 are evenly installed on the outer cylindrical surface of the guide columns 44.

[0029] Second Embodiment. On the basis of the first embodiment, please refer to Figures 1 to 7 as shown in: The tensioning assembly 46 includes a connecting plate 461. The connecting plate 461 is fixedly installed on the outer side of the fixed template 41 near the gantry 2 by screws. One end of the connecting plate 461 away from the fixed template 41 is fixedly installed with a hydraulic cylinder 462. The telescopic end of the hydraulic cylinder 462 is fixedly installed with a locking rod 463. The outer cylindrical surface of the locking rod 463 is slidably installed between the sliding seats 42, and the locking rod 463 passes through the center of the sliding seat 42. A T-shaped groove 464 is formed on the outer cylindrical surface of the locking rod 463 at the end away from the hydraulic cylinder 462. A tensioning block 465 is slidably installed inside the T-shaped groove 464. A return spring 466 is fixedly installed between the outer side of the tensioning block 465 and the inner wall of the T-shaped groove 464. When the moving module 32 moves towards the fixed template 41 for mold closing, under the support of the support shaft 36, one end of the insert 37 away from the support shaft 36 extends into the circular channel 47. And the staff starts the hydraulic cylinder 462 to work. By using the elongation of the telescopic end of the hydraulic cylinder 462, the locking rod 463 is pushed to extend into the circular channel 47. By making the top of the tensioning block 465 fit against the inner wall of the insert 37, the telescopic end of the hydraulic cylinder 462 continuously exerts a pushing force on the locking rod 463. And under the guidance of the T-shaped groove 464, the tensioning block 465 slides in the T-shaped groove 464, and the return spring 466 is compressed. And in combination with the fact that the bottom of the inner cavity of the T-shaped groove 464 is an inclined plane with an inclination of ten degrees, the tensioning block 465 can be made to move radially to achieve the purpose of tensioning, so that the tensioning block 465 is not likely to fall off.

[0030] There are two T-shaped grooves 464, and the two T-shaped grooves 464 are symmetrically installed along the axis in the middle of the locking rod 463. The bottom of the inner cavity of the T-shaped groove 464 is an inclined plane.

[0031] When the telescopic end of the hydraulic cylinder 462 contracts, the locking rod 463 is pulled, and the tensioning block 465 is moved out of the insert 37. And under the elastic force of the return spring 466, the tensioning block 465 moves in the reverse direction to reset, facilitating subsequent reciprocating tensioning work.

[0032] The return spring 466 is installed in the middle of the T-shaped groove 464. There are two tensioning blocks 465, and the two tensioning blocks 465 are symmetrically installed along the axis in the middle of the locking rod 463.

[0033] Third Embodiment. On the basis of the first and second embodiments, please refer to Figures 1 to 9 as shown in: At the bottom of the inner cavity of the frame 1 and near the moving module 32, a cooling mechanism 5 is installed. The cooling mechanism 5 includes a cooling box 51 and a liquid flow channel 52. The cooling box 51 is installed at the bottom of the inner cavity of the frame 1 and near the cylinder 31. The liquid flow channel 52 is opened inside the moving module 32 and near the cavity 35. The cooling box 51 is installed directly below the cylinder 31. A sewage outlet 53 is installed at the side of the cooling box 51 near the bottom. A right-angle pipe 54 is installed at the side of the top of the cooling box 51. A delivery pump 55 is installed outside the cooling box 51 and near the moving module 32. A first pipe 56 is connected between the liquid outlet of the delivery pump 55 and the liquid inlet of the liquid flow channel 52. A second pipe 57 is connected between the side of the top of the cooling box 51 and the liquid outlet of the liquid flow channel 52. Heat-conducting fins 58 are fixedly installed outside the moving module 32 and near the cylinder 31. Oval holes 59 are opened at the corresponding positions outside the heat-conducting fins 58. When the staff starts the delivery pump 55 to work, the coolant inside the cooling box 51 is sucked out through the liquid inlet of the delivery pump 55. Under the transportation of the first pipe 56, the coolant enters the liquid flow channel 52. Combining with the principle of heat transfer, the coolant in the liquid flow channel 52 absorbs the heat in the cavity 35, and then the automotive electric drive housing in the cavity 35 can be cooled. And as the coolant enters the second pipe 57 and is discharged into the cooling box 51 in time, such a cycle is formed, and the heat can be taken out and dissipated.

[0034] The liquid inlet of the delivery pump 55 extends into the cooling box 51. Both the first pipe 56 and the second pipe 57 are flexible hoses, and the liquid flow channel 52 is curved.

[0035] By using the curved shape of the liquid flow channel 52, the contact area between the coolant and the moving module 32 can be increased, and the heat absorption efficiency in the cavity 35 can be increased.

[0036] The heat-conducting fins 58 are evenly installed outside the moving module 32 and near the cylinder 31. The heat-conducting fins 58 extend into the liquid flow channel 52. By using the heat-conducting fins 58 extending into the liquid flow channel 52, when the coolant flows inside the liquid flow channel 52, the heat-conducting fins 58 can export the heat in the coolant, and then multi-stage heat dissipation can be realized.

[0037] During use, the staff injects an appropriate amount of coolant into the cooling box 51 through the right-angle pipe 54. By the elongation of the telescopic end of the cylinder 31, a driving force is applied to the moving module 32 through the telescopic end of the cylinder 31. Under the support and guidance of the guide posts 44, the moving module 32 can move linearly; Under the support and guidance of the guide posts 44, as the moving module 32 moves linearly, and the guide posts 44 pass through the center of the guide sleeve 33, the guide sleeve 33 will be driven by the moving module 32 to move together, enabling the balls 45 to roll. By using rolling friction, the frictional resistance is reduced, making the overall movement of the moving module 32 smooth and less likely to jam. As the moving module 32 closely fits with the fixed template 41, the mold can be closed, and the slider core 43 is located inside the cavity 35. At the same time, when the moving module 32 moves towards the fixed template 41 to close the mold, under the support of the support shaft 36, the end of the insert 37 away from the support shaft 36 extends into the circular channel 47. And the staff starts the hydraulic cylinder 462 to work. By the elongation of the telescopic end of the hydraulic cylinder 462, the locking rod 463 is pushed to extend into the circular channel 47. With the top of the tightening block 465 fitting against the inner wall of the insert 37, the telescopic end of the hydraulic cylinder 462 continuously applies a driving force to the locking rod 463. Under the guidance of the T-shaped groove 464, the tightening block 465 slides in the T-shaped groove 464, and the return spring 466 is compressed. Considering that the bottom of the inner cavity of the T-shaped groove 464 is an inclined plane with an inclination of ten degrees, the tightening block 465 can make a radial movement to achieve the purpose of tightening, thus making it less likely for the tightening block 465 to fall off. At this time, the staff conducts the liquid metal for casting from the sprue bushing 34 into the inner cavity of the cavity 35, so that the inner cavity of the cavity 35 is filled with the liquid metal, and then die casting can be carried out and pressure holding can be performed. After die casting is completed, the staff starts the transfer pump 55 to work. The transfer pump 55 sucks out a part of the coolant in the cooling tank 51 through the liquid inlet, and under the transportation of the first pipeline 56, the coolant enters the liquid flow channel 52. Combining with the heat transfer principle, the coolant in the liquid flow channel 52 absorbs the heat in the cavity 35, thereby cooling the automotive electric drive housing in the cavity 35. And as the coolant enters the second pipeline 57 and is timely discharged into the cooling tank 51, such a cycle is formed to take out and dissipate the heat. Moreover, since the liquid flow channel 52 is curved, it can increase the contact area between the coolant and the moving module 32, improve the heat absorption efficiency of the heat in the cavity 35. And with the heat conducting sheet 58 extending into the liquid flow channel 52, when the coolant flows inside the liquid flow channel 52, the heat conducting sheet 58 conducts out the heat in the coolant, thus realizing multi-stage heat dissipation. After the automotive electric drive housing in the cavity 35 is shaped, close the transfer pump 55. When the telescopic end of the cylinder 31 contracts, a pulling force is applied to the moving module 32 through the telescopic end of the cylinder 31, enabling the moving module 32 to move in the reverse direction, thus separating the moving module 32 from the fixed template 41 to form an open mold. The insert 37 is demolded together with the casting, completing the loosening action. Then, the automotive electric drive housing and the insert 37 are removed, and the insert 37 is reinstalled on the support shaft 36. By repeating the above actions, continuous die casting production can be carried out.

[0038] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting mold for manufacturing a new energy vehicle electric drive housing that is easy to cool, characterized in that: It comprises a frame (1), and a gantry (2) is fixedly mounted on the side of the top of the frame (1); A movable mold mechanism (3), the movable mold mechanism (3) being used to open and close the mold and to remove the automobile electric drive housing, the movable mold mechanism (3) being mounted on the top of the frame (1) and away from one end of the gantry (2); The movable mold mechanism (3) comprises a cylinder (31) and a movable module (32), wherein the cylinder (31) is mounted on the top of the frame (1) and at one end away from the gantry (2), and the movable module (32) is mounted on the telescopic end of the cylinder (31). A guide sleeve (33) is mounted in the middle of the top and the middle of the bottom of the movable module (32), and a gate sleeve (34) is mounted on the top of the movable module (32). A mold cavity (35) is provided in the middle of the outer side of the movable module (32), and a support shaft (36) is fixedly mounted in the middle of the inner cavity of the mold cavity (35), and an insert (37) is mounted on one end of the support shaft (36) away from the inner wall of the mold cavity (35); A fixed die mechanism (4), the fixed die mechanism (4) being used for sealing and performing die casting, the fixed die mechanism (4) being installed on the outside of the gantry (2) and close to a side of the moving die block (32); The fixed mold mechanism (4) comprises a fixed mold plate (41) and a slide seat (42), wherein the fixed mold plate (41) is mounted on the outside of the gantry (2) and close to the side of the movable mold plate (32), the slide seat (42) is mounted in the middle of the fixed mold plate (41), a slider mold core (43) is mounted on the outside of the slide seat (42) and close to the middle of the outside of the fixed mold plate (41), guide columns (44) are fixedly mounted on the top and bottom of the fixed mold plate (41), and balls (45) are rollingly mounted on the outer cylindrical surface of the guide columns (44), a tensioning assembly (46) is mounted on the outside of the fixed mold plate (41) and close to the slide seat (42), and a circular channel (47) is opened at the center of the slider mold core (43).

2. A die-casting mold for manufacturing a new energy vehicle electric drive housing that is easy to cool according to claim 1, characterized in that: The cylinder (31) is installed horizontally, and the movable module (32) and the cylinder (31) are installed at the same height. There are two sprue bushings (34), and the two sprue bushings (34) are installed symmetrically along the guide bushing (33).

3. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 1 is characterized in that: The movable die plate (32) and the fixed die plate (41) are installed at the same height, and the guide column (44) passes through the center of the guide sleeve (33).

4. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 1 is characterized in that: The guide column (44) is installed horizontally, and the balls (45) are evenly installed on the outer circumferential surface of the guide column (44).

5. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 1, characterized in that: The tensioning assembly (46) comprises a connecting plate (461), the connecting plate (461) being fixedly mounted on the outer side of the fixed plate (41) and close to the gantry (2) by means of screws; a hydraulic cylinder (462) is fixedly mounted on one end of the connecting plate (461) away from the fixed plate (41); a locking rod (463) is fixedly mounted on the telescopic end of the hydraulic cylinder (462); an outer cylindrical surface of the locking rod (463) is slidably mounted between the sliding seat (42), and the locking rod (463) passes through the center of the sliding seat (42); a T-shaped groove (464) is formed on the outer cylindrical surface of the locking rod (463) and at one end away from the hydraulic cylinder (462); a tensioning block (465) is slidably mounted inside the T-shaped groove (464); and a return spring (466) is fixedly mounted between the outer side of the tensioning block (465) and the inner wall of the T-shaped groove (464).

6. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 5, characterized in that: There are two T-shaped slots (464), and the two T-shaped slots (464) are symmetrically installed along the axis in the middle of the locking rod (463), and the bottom of the inner cavity of the T-shaped slot (464) is an inclined surface.

7. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 5, characterized in that: The return spring (466) is installed in the middle of the T-shaped slot (464), and there are two tensioning blocks (465), which are symmetrically installed along the axis in the middle of the locking rod (463).

8. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 1, characterized in that: A cooling mechanism (5) is installed at the bottom of the inner cavity of the frame (1) and near the moving module (32). The cooling mechanism (5) comprises a cooling box (51) and a liquid flow channel (52). The cooling box (51) is installed at the bottom of the inner cavity of the frame (1) and near the cylinder (31). The liquid flow channel (52) is opened inside the moving module (32) and near the cavity (35). The cooling box (51) is installed directly below the cylinder (31). A sewage outlet (53) is installed at the side of the outer side of the cooling box (51) and near the bottom. The cooling box (51) A right-angle tube (54) is installed at the side of the top, a delivery pump (55) is installed on the outside of the cooling box (51) and close to the moving module (32), a first pipe (56) is connected between the liquid outlet of the delivery pump (55) and the liquid inlet of the liquid flow channel (52), a second pipe (57) is connected between the side of the top of the cooling box (51) and the liquid outlet of the liquid flow channel (52), a heat conducting plate (58) is fixedly installed on the outside of the moving module (32) and close to the cylinder (31), and elliptical holes (59) are opened at corresponding positions on the outside of the heat conducting plate (58).

9. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 8, characterized in that: The liquid inlet of the delivery pump (55) extends to the interior of the cooling box (51), the first pipe (56) and the second pipe (57) are both hoses, and the liquid flow channel (52) is curved.

10. The die-casting mold for manufacturing the electric drive housing of a new energy vehicle that is easy to cool according to claim 8, characterized in that: The heat conducting sheet (58) is evenly mounted on the outside of the moving module (32) and close to the cylinder (31), and the heat conducting sheet (58) extends to the inside of the liquid flow channel (52).

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