Die-casting forming device for thin-wall motor shell

Abstract

The invention provides a die-casting forming device for a thin-wall motor shell, and relates to the technical field of die-casting forming. The die-casting forming device for the thin-wall motor shell comprises a forming workbench, a gantry mounting frame is fixedly connected to the upper surface of the forming workbench, two connecting and fixing shafts are fixedly connected to one side of the inner wall of the gantry mounting frame, and the other ends of the two connecting and fixing shafts are jointly and fixedly connected with a fixed die. According to the device, a third servo motor is started, an output shaft of the third servo motor drives a first belt pulley to rotate, so that a rotary outer sleeve performs small-amplitude rotation, the rotary outer sleeve drives a movable mounting disc to rotate when rotating, so that a second alignment hole is aligned with a first alignment hole, and a first air pump and a second air pump are started; and the first air pump pumps out air in the forming cavity, and the second air pump pumps inert gas into the forming cavity, so that the condition of high-temperature oxidation of molten metal is avoided, and the die-casting forming quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of die casting, in particular to a die casting device for a thin-wall motor housing. Background Art

[0002] The die casting process is a series of precision casting methods that inject molten metal into a mold under pressure, cool it and form it, and then open the mold to obtain a solid metal casting. The die casting made by the die casting process has higher mechanical strength than the castings obtained by ordinary casting.

[0003] In the field of motor housing production, most motor housings are processed by die-casting technology and continuously produced by metal molds. The molten metal heated to a fluid state is introduced into a predetermined molding cavity, and the workpiece is taken out after cooling. However, in this production method, there is air in the molding cavity formed after the mold is closed. When the high-temperature molten metal enters, the air in the molding cavity will oxidize part of the molten metal. Even if there are exhaust holes in the existing mold, these exhaust holes often start to exhaust after the molten metal enters, and oxidation still occurs. At the same time, the traditional mold cooling system generally uses coolant for cooling. Some molds are filled with coolant in the mold, and the coolant is replaced after the molding is completed. This will cause the coolant temperature to be too high and the heat absorption effect is poor. There are also cooling methods that use coolant that is always flowing. However, this method will cause the coolant to be discharged before it has time to absorb more heat, which has limitations. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a die-casting device for a thin-walled motor housing, which solves the defects and deficiencies in the prior art.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a die-casting molding device for a thin-walled motor housing, comprising a molding workbench, a gantry mounting frame fixedly connected to the upper surface of the molding workbench, two connecting fixed shafts fixedly connected to one side of the inner wall of the gantry mounting frame, the other ends of the two connecting fixed shafts are commonly fixedly connected to a fixed mold, an exhaust hole is provided inside the fixed mold, an exhaust valve corresponding to the exhaust hole is installed on the fixed mold, two driving cylinders are fixedly connected to one side of the outer wall of the gantry mounting frame, the piston ends of the two driving cylinders are commonly fixedly connected to a movable mold, a molding cavity is formed between the fixed mold and the movable mold, a plurality of fixed mold cooling holes are provided inside the fixed mold, a plurality of movable mold cooling holes are provided inside the movable mold, a cooling component is arranged between the fixed mold and the movable mold, and a pusher pipe is fixedly connected between the inner wall of the gantry mounting frame and the fixed mold The movable mold is provided with a movable mold groove body, the inner wall of the movable mold groove body is fixedly connected with a fixed mounting plate, the outer wall of the movable mold groove body is fixedly connected with a rotating outer sleeve connected with the movable mold groove body, a ventilation assembly is arranged inside the rotating outer sleeve, and a third power assembly that drives the rotating outer sleeve to rotate is installed on the outer wall of the movable mold.

[0008] Preferably, the cooling assembly includes a coolant injection cylinder fixedly connected to the front side of the gantry mounting frame, a piston push rod is inserted through one side of the coolant injection cylinder, one end of the piston push rod is fixedly connected to an L-shaped connecting frame, the L-shaped connecting frame is fixedly connected to the horizontal moving plate, the other end of the piston push rod is fixedly connected to a piston block, and the piston block is slidably arranged inside the coolant injection cylinder, one side of the coolant injection cylinder is fixedly connected to a second connecting pipe, the outer surface of the second connecting pipe is fixedly connected to a first mounting hose and a second mounting hose, the other end of the first mounting hose is fixedly connected to a fixed mold main pipe, a plurality of fixed mold water inlet pipes are fixedly connected to the fixed mold main pipe, and the plurality of fixed mold water inlet pipes are connected one by one to the plurality of fixed mold cooling holes, and the other end of the second mounting hose is fixedly connected to a movable mold main pipe, a plurality of movable mold water inlet pipes are fixedly connected to the movable mold main pipe, and the plurality of movable mold water inlet pipes are connected one by one to the plurality of movable mold cooling holes.

[0009] Preferably, a coolant tank is fixedly connected to the top of the gantry mounting frame, a first connecting pipe is fixedly connected to one side of the coolant tank, an end of the first connecting pipe away from the coolant tank is fixedly connected to the coolant injection cylinder, a first one-way valve is installed on the first connecting pipe, and a second one-way valve is installed on the second connecting pipe.

[0010] Preferably, the other ends of the multiple fixed mold cooling holes are fixedly connected to the fixed mold water outlet pipe, and the multiple fixed mold water outlet pipes are fixedly connected to the fixed mold drainage pipe; the other ends of the multiple movable mold cooling holes are fixedly connected to the movable mold water outlet pipe, and the multiple movable mold drainage pipes are fixedly connected between the multiple movable mold water outlet pipes.

[0011] Preferably, a storage hopper is fixedly connected to the top of the gantry mounting frame, a feed pipe is fixedly connected to the bottom of the storage hopper, and the bottom end of the feed pipe is fixedly connected to the push pipe.

[0012] Preferably, the first power assembly includes a second servo motor fixedly connected to the side wall of the horizontal moving plate, the output shaft of the second servo motor is fixedly connected to the second rotating gear, one end of the pusher inner connecting rod is fixedly connected to the first rotating gear, and the first rotating gear is meshingly connected with the second rotating gear.

[0013] Preferably, the second power assembly includes a first servo motor fixedly connected to the upper surface of the forming workbench, the output shaft of the first servo motor is fixedly connected to a threaded rotating rod, the horizontal moving plate is threadedly connected to the outer surface of the threaded rotating rod, the side wall of the gantry mounting frame is fixedly connected to a guide rod, and the horizontal moving plate is sleeved on the outer surface of the guide rod.

[0014] Preferably, the ventilation assembly includes a connecting mounting plate fixedly connected to the inside of the rotating outer sleeve, the connecting mounting plate side wall penetrates and is fixedly connected with the first air duct and the second air duct, one end of the first air duct and the second air duct are commonly fixedly connected to a movable mounting plate, the movable mounting plate has two second alignment holes on the side wall, the two second alignment holes are respectively connected to the first air duct and the second air duct, the movable mold groove body is connected to the molding cavity, the fixed mounting plate is located at a position close to the molding cavity, the fixed mounting plate has two first alignment holes matched with the second alignment holes on the side wall, the top of the gantry mounting frame is fixedly connected with the first air pump and the second air pump, the inlet of the first air pump is fixedly connected with the first fixed hose, the other end of the first fixed hose is fixedly connected to the first air duct, the outlet of the second air pump is fixedly connected with the second fixed hose, and the other end of the second fixed hose is fixedly connected to the second air duct.

[0015] Preferably, the third power assembly includes a third servo motor fixedly connected to the outer wall of the movable mold, the output shaft of the third servo motor is fixedly connected to the first pulley, the outer surface of the rotating outer sleeve is fixedly connected to the second pulley, and the first pulley and the second pulley are connected by belt transmission.

[0016] Preferably, a linear groove and a limit groove are provided on the outer surface of the pusher outer connecting rod, the linear groove is connected to the limit groove, and a limit protrusion is fixedly connected to the outer surface of the pusher inner connecting rod, and the limit protrusion is located inside the limit groove.

[0017] (III) Beneficial effects

[0018] The present invention provides a die-casting device for a thin-walled motor housing. The device has the following beneficial effects:

[0019] 1. The present invention starts the third servo motor, and the output shaft of the third servo motor rotates with the first pulley, so that the rotating outer sleeve rotates slightly. When the rotating outer sleeve rotates, it rotates with the movable mounting plate, so that the second alignment hole is aligned with the first alignment hole. The first air pump and the second air pump are started. The first air pump draws out the air inside the molding cavity, and the second air pump draws inert gas into the molding cavity, thereby avoiding high-temperature oxidation of the molten metal and improving the quality of the die-casting molding.

[0020] 2. In the present invention, when the piston block moves toward the direction approaching the second connecting tube, the coolant inside the coolant injection cylinder enters into the first installation hose and the second installation hose through the second connecting tube, and then respectively enters into a plurality of fixed mold cooling holes and a plurality of movable mold cooling holes to cool the fixed mold and the movable mold, and then is discharged through the fixed mold drainage pipe and the movable mold drainage pipe; when the piston block moves toward the direction away from the second connecting tube, the coolant inside the coolant tank enters into the coolant injection cylinder through the first connecting tube for replenishment, so as to prepare for the next coolant injection, thereby completing the intermittent coolant supply and effectively carrying away the heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of a three-dimensional structure from a first perspective of a die-casting molding device for a thin-walled motor housing provided by the present invention;

[0022] Figure 2 A schematic diagram of the stereoscopic structure from a second perspective of a die-casting device for a thin-walled motor housing provided by the present invention;

[0023] Figure 3 A cross-sectional view of a die-casting device for a thin-walled motor housing provided by the present invention;

[0024] Figure 4 A die-casting device for a thin-walled motor housing provided by the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 A front view of a die-casting device for a thin-walled motor housing provided by the present invention;

[0026] Figure 6 A schematic diagram of the structure of a pusher outer connecting rod of a die-casting molding device for a thin-walled motor housing provided by the present invention.

[0027] Among them, 1. forming workbench; 2. gantry mounting frame; 3. connecting fixed shaft; 4. fixed mold; 5. driving cylinder; 6. moving mold; 7. cooling hole of fixed mold; 8. cooling hole of moving mold; 9. water inlet pipe of fixed mold; 10. water outlet pipe of fixed mold; 11. main pipe of fixed mold; 12. drainage pipe of fixed mold; 13. water inlet pipe of moving mold; 14. water outlet pipe of moving mold; 15. main pipe of moving mold; 16. drainage pipe of moving mold; 17. pushing pipe; 18. feeding pipe; 19. storage hopper; 20. outer connecting rod of pushing material; 21. rectangular plate of pushing material; 22. slot body of fixed mold; 23. inner connecting rod of pushing material; 24. horizontal moving plate; 25. first servo motor; 26. threaded rotating rod; 27. first rotating gear; 28. second servo motor ; 29. ​​Second rotating gear; 30. L-shaped connecting frame; 31. Coolant injection cylinder; 32. Piston push rod; 33. First connecting pipe; 34. Coolant box; 35. Second connecting pipe; 36. First mounting hose; 37. Second mounting hose; 38. Rotating outer sleeve; 39. Third servo motor; 40. Moving mold slot; 41. Fixed mounting plate; 42. First alignment hole; 43. Connecting mounting plate; 44. First air duct; 45. Second air duct; 46. Movable mounting plate; 47. Second alignment hole; 48. First fixed hose; 49. Second fixed hose; 50. First air pump; 51. Second air pump; 52. Molding cavity; 53. Linear groove; 54. Limit groove; 55. Limit bump; 56. Exhaust valve. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example:

[0030] like Figure 1-Figure 6As shown, an embodiment of the present invention provides a die-casting molding device for a thin-walled motor housing, comprising a molding workbench 1, a gantry mounting frame 2 is fixedly connected to the upper surface of the molding workbench 1, two connecting fixed shafts 3 are fixedly connected to one side of the inner wall of the gantry mounting frame 2, and the other ends of the two connecting fixed shafts 3 are fixedly connected to a fixed mold 4, an exhaust hole is provided inside the fixed mold 4, and an exhaust valve 56 corresponding to the exhaust hole is installed on the fixed mold 4, and the exhaust valve 56 is a one-way valve, so that gas can only be discharged from the exhaust hole and cannot enter the exhaust hole, two driving cylinders 5 are fixedly connected to one side of the outer wall of the gantry mounting frame 2, and the piston ends of the two driving cylinders 5 are fixedly connected to a movable mold 6, a molding cavity 52 is formed between the fixed mold 4 and the movable mold 6, a plurality of fixed mold cooling holes 7 are provided inside the fixed mold 4, and a plurality of movable mold cooling holes 8 are provided inside the movable mold 6, and after molding and cooling are completed, the two driving cylinders 5 are started to separate the fixed mold 4 from the movable mold 6;

[0031] A cooling assembly is provided between the fixed mold 4 and the movable mold 6, and the cooling assembly includes a coolant injection cylinder 31 fixedly connected to the front side of the gantry mounting frame 2, a piston push rod 32 is inserted through one side of the coolant injection cylinder 31, one end of the piston push rod 32 is fixedly connected to an L-shaped connecting frame 30, the L-shaped connecting frame 30 is fixedly connected to the horizontal moving plate 24, the other end of the piston push rod 32 is fixedly connected to a piston block, and the piston block is slidably arranged inside the coolant injection cylinder 31, one side of the coolant injection cylinder 31 is fixedly connected to a second connecting pipe 35, the outer surface of the second connecting pipe 35 is fixedly connected to a first mounting hose 36 and a second mounting hose 37, the other end of the first mounting hose 36 is fixedly connected to a fixed mold main pipe 11, a plurality of fixed mold water inlet pipes 9 are fixedly connected to the fixed mold main pipe 11, and the plurality of fixed mold water inlet pipes 9 are connected one by one with a plurality of fixed mold cooling holes 7, and the second mounting The other end of the hose 37 is fixedly connected to the movable mold main pipe 15, and a plurality of movable mold water inlet pipes 13 are fixedly connected to the movable mold main pipe 15. The plurality of movable mold water inlet pipes 13 are connected one by one to the plurality of movable mold cooling holes 8. The top of the gantry mounting frame 2 is fixedly connected to the coolant tank 34, and a first connecting pipe 33 is fixedly connected to one side of the coolant tank 34. The end of the first connecting pipe 33 away from the coolant tank 34 is fixedly connected to the coolant injection cylinder 31. A first one-way valve is installed on the first connecting pipe 33, and a second one-way valve is installed on the second connecting pipe 35. The other ends of the plurality of fixed mold cooling holes 7 are all fixedly connected to the fixed mold water outlet pipes 10, and the plurality of fixed mold water outlet pipes 10 are fixedly connected to the fixed mold drainage pipes 12. The other ends of the plurality of movable mold cooling holes 8 are all fixedly connected to the movable mold water outlet pipes 14, and the plurality of movable mold water outlet pipes 14 are fixedly connected to the movable mold drainage pipes 16.

[0032] A push pipe 17 is fixedly connected between the inner wall of the gantry mounting frame 2 and the fixed mold 4, a storage hopper 19 is fixedly connected to the top of the gantry mounting frame 2, a feed pipe 18 is fixedly connected to the bottom of the storage hopper 19, and the bottom end of the feed pipe 18 is fixedly connected to the push pipe 17. A fixed mold groove 22 connected to the push pipe 17 is opened on the inner wall of the fixed mold 4, and the fixed mold groove 22 is connected to the molding cavity 52. ​​A push rectangular plate 21 is arranged inside the fixed mold groove 22. The side wall of the rectangular plate 21 is fixedly connected with the push material outer connecting rod 20, and the push material inner connecting rod 23 is arranged inside the push material outer connecting rod 20. The outer surface of the push material outer connecting rod 20 is provided with a linear groove 53 and a limit groove 54, and the linear groove 53 is connected with the limit groove 54. The outer surface of the push material inner connecting rod 23 is fixedly connected with a limit protrusion 55, and the limit protrusion 55 is located inside the limit groove 54. The push material inner connecting rod 23 passes through the gantry mounting frame 2 and is rotatably connected with the horizontal moving plate 24.

[0033] In order to realize the purpose of rotating the pusher inner connecting rod 23, a first power assembly driving the pusher inner connecting rod 23 to rotate is installed on the side wall of the horizontal moving plate 24, and the first power assembly includes a second servo motor 28 fixedly connected to the side wall of the horizontal moving plate 24, and the output shaft of the second servo motor 28 is fixedly connected to the second rotating gear 29, and one end of the pusher inner connecting rod 23 is fixedly connected to the first rotating gear 27, and the first rotating gear 27 is meshed with the second rotating gear 29;

[0034] A second power assembly for driving the horizontal moving plate 24 to move is installed on the upper surface of the forming workbench 1. The second power assembly includes a first servo motor 25 fixedly connected to the upper surface of the forming workbench 1. The output shaft of the first servo motor 25 is fixedly connected to a threaded rotating rod 26. The horizontal moving plate 24 is threadedly connected to the outer surface of the threaded rotating rod 26. The side wall of the gantry mounting frame 2 is fixedly connected to a guide rod. The horizontal moving plate 24 is sleeved on the outer surface of the guide rod.

[0035] The inner wall of the movable mold 6 is provided with a movable mold groove body 40, and the inner wall of the movable mold groove body 40 is fixedly connected with a fixed mounting plate 41, and the outer wall of the movable mold 6 is fixedly connected with a rotating outer sleeve 38 connected with the movable mold groove body 40, and the interior of the rotating outer sleeve 38 is provided with a ventilation component, and the ventilation component includes a connecting mounting plate 43 fixedly connected to the interior of the rotating outer sleeve 38, and the side wall of the connecting mounting plate 43 is penetrated and fixedly connected with a first air pipeline 44 and a second air pipeline 45, and one end of the first air pipeline 44 and the second air pipeline 45 is fixedly connected with a movable mounting plate 46, and the side wall of the movable mounting plate 46 is provided with two second alignment holes 47, and the two second alignment holes 47 are respectively connected with the first air pipeline 44 and the second air pipeline 45, and the movable mold groove body 40 is connected with the molding cavity 52. The fixed mounting plate 41 is located near the molding cavity 52, and two first alignment holes 42 matched with the second alignment holes 47 are provided on the side wall of the fixed mounting plate 41. Sealing rings can be provided on the fixed mounting plate 41 and the connecting mounting plate 43 to ensure sealing. The top of the gantry mounting frame 2 is fixedly connected with the first air pump 50 and the second air pump 51, and the inlet of the first air pump 50 is fixedly connected with the first fixed hose 48, and the other end of the first fixed hose 48 is fixedly connected with the first air pipeline 44, and the outlet of the second air pump 51 is fixedly connected with the second fixed hose 49, and the other end of the second fixed hose 49 is fixedly connected with the second air pipeline 45. The inlet of the second air pump 51 is connected with the inert gas supply equipment, and the existing technology can be used, and this application will not be elaborated in detail;

[0036] The outer wall of the movable mold 6 is installed with a third power assembly for driving the rotating outer sleeve 38 to rotate. The third power assembly includes a third servo motor 39 fixedly connected to the outer wall of the movable mold 6. The output shaft of the third servo motor 39 is fixedly connected to the first pulley. The outer surface of the rotating outer sleeve 38 is fixedly connected to the second pulley. The first pulley and the second pulley are connected by belt transmission.

[0037] Working principle:

[0038] When in use, first start the third servo motor 39, the output shaft of the third servo motor 39 rotates with the first pulley, so that the rotating outer sleeve 38 rotates slightly, and the rotating outer sleeve 38 rotates with the movable mounting plate 46, so that the second alignment hole 47 is aligned with the first alignment hole 42, and the first air pump 50 and the second air pump 51 are started, the first air pump 50 pumps out the air inside the molding cavity 52, and the second air pump 51 pumps the inert gas into the molding cavity 52. ​​After the operation is completed, start the third servo motor 39 again, so that the rotating outer sleeve 38 rotates slightly, so that the second alignment hole 47 is misaligned with the first alignment hole 42;

[0039] The molten metal stored in the storage hopper 19 enters the push pipe 17 through the feed pipe 18, and the first servo motor 25 is started. The output shaft of the first servo motor 25 rotates with the threaded rotating rod 26, so that the horizontal moving plate 24 moves on the outer surface of the threaded rotating rod 26, and the horizontal moving plate 24 moves with the pusher inner connecting rod 23. The pusher inner connecting rod 23 moves with the pusher rectangular plate 21 through the pusher outer connecting rod 20, so that the pusher rectangular plate 21 pushes the molten metal into the molding cavity 52. ​​When the molten metal is pushed in, the exhaust valve 56 opens to discharge the inert gas in the molding cavity 52.

[0040] Then the second servo motor 28 is started, and the output shaft of the second servo motor 28 rotates with the second rotating gear 29, so that the first rotating gear 27 rotates with the pusher inner connecting rod 23, and the pusher inner connecting rod 23 disengages from the inside of the limiting groove 54 with the limiting protrusion 55 and enters the linear groove 53, and then the first servo motor 25 is started to rotate forward and reverse, and the output shaft of the first servo motor 25 rotates with the threaded rotating rod 26, so that the horizontal moving plate 24 moves on the outer surface of the threaded rotating rod 26, and the horizontal moving plate 24 moves with the pusher inner connecting rod 23. At this time, the pusher inner connecting rod 23 will not move with the pusher outer connecting rod 20, and the horizontal moving plate 24 will also move with the L-shaped connecting rod The L-shaped connecting frame 30 moves, and the L-shaped connecting frame 30 will move back and forth with the piston push rod 32. When the piston block moves toward the direction close to the second connecting tube 35, the coolant in the coolant injection cylinder 31 enters the first installation hose 36 and the second installation hose 37 through the second connecting tube 35, and then enters the multiple fixed mold cooling holes 7 and the multiple movable mold cooling holes 8 respectively to cool the fixed mold 4 and the movable mold 6, and then is discharged through the fixed mold drainage pipe 12 and the movable mold drainage pipe 16. When the piston block moves away from the second connecting tube 35, the coolant in the coolant tank 34 enters the coolant injection cylinder 31 through the first connecting tube 33 to be replenished, so as to prepare for the next coolant injection.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprising a reference structure" do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A die-casting device for a thin-walled motor housing, comprising a molding workbench (1), characterized in that: The upper surface of the molding workbench (1) is fixedly connected to a gantry mounting frame (2); one side of the inner wall of the gantry mounting frame (2) is fixedly connected to two connecting fixed shafts (3); the other ends of the two connecting fixed shafts (3) are commonly fixedly connected to a fixed mold (4); an exhaust hole is provided inside the fixed mold (4); an exhaust valve (56) corresponding to the exhaust hole is installed on the fixed mold (4); one side of the outer wall of the gantry mounting frame (2) is fixedly connected to two driving cylinders (5); the piston ends of the two driving cylinders (5) are commonly fixedly connected to A movable mold (6) is connected, a molding cavity (52) is formed between the fixed mold (4) and the movable mold (6), a plurality of fixed mold cooling holes (7) are opened inside the fixed mold (4), a plurality of movable mold cooling holes (8) are opened inside the movable mold (6), a cooling component is arranged between the fixed mold (4) and the movable mold (6), a material pushing pipe (17) is fixedly connected between the inner wall of the gantry mounting frame (2) and the fixed mold (4), and a fixed mold groove body (22) connected to the material pushing pipe (17) is opened on the inner wall of the fixed mold (4), The fixed mold groove body (22) is connected to the molding cavity (52), and a pusher rectangular plate (21) is arranged inside the fixed mold groove body (22). The side wall of the pusher rectangular plate (21) is fixedly connected with an external pusher connecting rod (20), and an internal pusher connecting rod (23) is arranged inside the external pusher connecting rod (20). The internal pusher connecting rod (23) passes through the gantry mounting frame (2) and is rotatably connected with a horizontal moving plate (24). A first power component for driving the internal pusher connecting rod (23) to rotate is installed on the side wall of the horizontal moving plate (24). A second power assembly for driving the horizontal moving plate (24) to move is installed on the upper surface of the molding workbench (1); a movable mold groove (40) is provided on the inner wall of the movable mold (6); a fixed mounting plate (41) is fixedly connected to the inner wall of the movable mold groove (40); a rotating outer sleeve (38) connected to the movable mold groove (40) is fixedly connected to the outer wall of the movable mold (6); a ventilation assembly is arranged inside the rotating outer sleeve (38); and a third power assembly for driving the rotating outer sleeve (38) to rotate is installed on the outer wall of the movable mold (6).

2. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The cooling assembly comprises a coolant injection cylinder (31) fixedly connected to the front side of the gantry mounting frame (2), a piston push rod (32) is inserted through one side of the coolant injection cylinder (31), one end of the piston push rod (32) is fixedly connected to an L-shaped connecting frame (30), the L-shaped connecting frame (30) is fixedly connected to the horizontal moving plate (24), the other end of the piston push rod (32) is fixedly connected to a piston block, the piston block is slidably arranged inside the coolant injection cylinder (31), one side of the coolant injection cylinder (31) is fixedly connected to a second connecting pipe (35), the outer portion of the second connecting pipe (35) is fixedly connected to the coolant injection cylinder (31), and the outer portion of the second connecting pipe (35) is fixedly connected to the coolant injection cylinder (31). A first mounting hose (36) and a second mounting hose (37) are fixedly connected on the surface; the other end of the first mounting hose (36) is fixedly connected to a fixed mold main pipe (11); a plurality of fixed mold water inlet pipes (9) are fixedly connected to the fixed mold main pipe (11); the plurality of fixed mold water inlet pipes (9) are connected one by one to a plurality of fixed mold cooling holes (7); the other end of the second mounting hose (37) is fixedly connected to a movable mold main pipe (15); a plurality of movable mold water inlet pipes (13) are fixedly connected to the movable mold main pipe (15); the plurality of movable mold water inlet pipes (13) are connected one by one to a plurality of movable mold cooling holes (8).

3. The die-casting device for a thin-walled motor housing according to claim 2, characterized in that: A coolant tank (34) is fixedly connected to the top of the gantry mounting frame (2), a first connecting pipe (33) is fixedly connected to one side of the coolant tank (34), an end of the first connecting pipe (33) away from the coolant tank (34) is fixedly connected to a coolant injection cylinder (31), a first one-way valve is installed on the first connecting pipe (33), and a second one-way valve is installed on the second connecting pipe (35).

4. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The other ends of the plurality of fixed mold cooling holes (7) are all fixedly connected to a fixed mold water outlet pipe (10), a fixed mold drainage pipe (12) is fixedly connected between the plurality of fixed mold water outlet pipes (10), the other ends of the plurality of movable mold cooling holes (8) are all fixedly connected to a movable mold water outlet pipe (14), and a movable mold drainage pipe (16) is fixedly connected between the plurality of movable mold water outlet pipes (14).

5. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The top of the gantry mounting frame (2) is fixedly connected to a storage hopper (19), the bottom of the storage hopper (19) is fixedly connected to a feed pipe (18), and the bottom end of the feed pipe (18) is fixedly connected to a push pipe (17).

6. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The first power assembly comprises a second servo motor (28) fixedly connected to the side wall of the horizontal moving plate (24); the output shaft of the second servo motor (28) is fixedly connected to a second rotating gear (29); one end of the pusher inner connecting rod (23) is fixedly connected to a first rotating gear (27); the first rotating gear (27) is meshingly connected to the second rotating gear (29).

7. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The second power assembly comprises a first servo motor (25) fixedly connected to the upper surface of the forming workbench (1); the output shaft of the first servo motor (25) is fixedly connected to a threaded rotating rod (26); the horizontal movable plate (24) is threadedly connected to the outer surface of the threaded rotating rod (26); the side wall of the gantry mounting frame (2) is fixedly connected to a guide rod; and the horizontal movable plate (24) is sleeved on the outer surface of the guide rod.

8. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The ventilation assembly comprises a connecting mounting plate (43) fixedly connected to the inside of the rotating outer sleeve (38); a first air pipeline (44) and a second air pipeline (45) are fixedly connected through the side wall of the connecting mounting plate (43); one end of the first air pipeline (44) and the second air pipeline (45) are fixedly connected to a movable mounting plate (46); two second alignment holes (47) are provided on the side wall of the movable mounting plate (46); the two second alignment holes (47) are respectively connected to the first air pipeline (44) and the second air pipeline (45); the movable mold groove body (40) is connected to the molding cavity (52); the fixed mounting plate (41 ) is located near the molding cavity (52), two first alignment holes (42) matched with the second alignment holes (47) are opened on the side wall of the fixed mounting plate (41), the top of the gantry mounting frame (2) is fixedly connected with a first air pump (50) and a second air pump (51), the inlet of the first air pump (50) is fixedly connected with a first fixed hose (48), the other end of the first fixed hose (48) is fixedly connected with the first air pipeline (44), the outlet of the second air pump (51) is fixedly connected with a second fixed hose (49), the other end of the second fixed hose (49) is fixedly connected with the second air pipeline (45).

9. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The third power assembly includes a third servo motor (39) fixedly connected to the outer wall of the movable mold (6), the output shaft of the third servo motor (39) is fixedly connected to a first pulley, the outer surface of the rotating outer sleeve (38) is fixedly connected to a second pulley, and the first pulley and the second pulley are connected via a belt drive.

10. The die-casting device for a thin-walled motor housing according to claim 1, characterized in that: The outer surface of the push material outer connecting rod (20) is provided with a linear groove (53) and a limiting groove (54), the linear groove (53) is communicated with the limiting groove (54), and the outer surface of the push material inner connecting rod (23) is fixedly connected with a limiting protrusion (55), and the limiting protrusion (55) is located inside the limiting groove (54).

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