Extrusion casting device for aluminum alloy motor shell

Abstract

The invention discloses an extrusion casting device for an aluminum alloy motor shell, and relates to the technical field of part casting, a first feeding mechanism and a second feeding mechanism are arranged on a base, a circular frame body is rotatably mounted on the base, and a feeding area is arranged on the circular frame body; the third feeding port moves to communicate with the outlet end of the first feeding mechanism and the outlet end of the second feeding mechanism, a casting mechanism is arranged on the base, and a second electric cylinder for pushing the aluminum alloy column in the feeding area into the casting mechanism is arranged on the base. And the base is provided with an extrusion rod for performing continuous extrusion casting on the aluminum alloy column in the casting mechanism to form the aluminum alloy motor shell. The lower mold shell drives the aluminum alloy column to move into a channel formed by the upper mold shell and the lower mold shell; the aluminum alloy cylinder sequentially passes through the extrusion-in profile hole of the upper die, the flow dividing holes of the flow dividing bridge and the space between the die core and the extrusion profile hole to be continuously discharged to form the aluminum alloy motor shell, and the forming quality and the qualified rate of shell castings can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of part casting, and particularly to an extrusion casting device for an aluminum alloy motor housing. Background Art

[0002] Due to the advantages of low density, high specific strength, good thermal conductivity, etc., aluminum alloy has become an ideal material for manufacturing motor housings. Using an aluminum alloy motor housing can effectively reduce the weight of the motor, improve the heat dissipation efficiency, and thus enhance the overall performance and reliability of the motor.

[0003] When the existing extrusion casting device produces an aluminum alloy motor housing, defects such as internal looseness and pores are likely to occur in the casting, resulting in low density of the casting and affecting the forming quality and qualified rate of the housing casting. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned disadvantages of the prior art and provide an extrusion casting device for an aluminum alloy motor housing that improves the forming quality and qualified rate of the housing casting.

[0005] The technical solution adopted to solve the above technical problem is: a first feeding mechanism and a second feeding mechanism for transporting aluminum alloy cylinders are arranged on a base. A circular frame is rotatably installed on the base. The first feeding mechanism is located on the first side of the circular frame, and the second feeding mechanism is located on the second side of the circular frame. The first feeding mechanism and the second feeding mechanism are symmetric to each other with the center line of the circular frame as the axis of symmetry. An inlet area is provided on the circular frame. The first feeding mechanism and the second feeding mechanism alternately transport the aluminum alloy cylinders into the inlet area. A third inlet port communicating with the inlet area is processed on the circular frame. The third inlet port moves to communicate with the outlet ends of the first feeding mechanism and the second feeding mechanism respectively. A casting mechanism is arranged on the base on the third side of the circular frame. A second electric cylinder for pushing the aluminum alloy cylinder in the inlet area into the casting mechanism is arranged on the base. An extrusion rod for continuously extruding and casting the aluminum alloy cylinder in the casting mechanism to form an aluminum alloy motor housing is arranged on the base.

[0006] Further, a third motor is arranged at the bottom of the base. The output shaft of the third motor is fixedly connected to a fifth connecting shaft. The fifth connecting shaft is rotatably connected to the base. A fifth gear is arranged on the fifth connecting shaft. A sixth gear meshing with the fifth connecting shaft is arranged at the bottom of the circular frame.

[0007] Further, a second motor is provided on the base. The output shaft of the second motor is fixedly connected to the output shaft of the fourth connecting shaft. The fourth connecting shaft is rotatably connected to the base. A fourth gear is provided on the fourth connecting shaft. A third connecting shaft is rotatably installed on the base. A third gear meshing with the fourth gear is provided at the bottom of the third connecting shaft. A cam is provided at the top of the third connecting shaft. A chute is provided at the bottom of the cam. One end of the extrusion rod is provided with a slider slidably connected to the chute.

[0008] Further, the cam is composed of a continuous extrusion section and a retraction section connected together.

[0009] Further, the structure of the first feeding mechanism is the same as that of the second feeding mechanism. The first feeding mechanism is as follows: a feeding track for horizontally transporting the aluminum alloy cylinder is provided on the first side of the circular frame body. A heating box for heating the aluminum alloy cylinder is provided on one side of the feeding track. A feeding cylinder is provided above the heating box. A first feeding port communicating with the outlet end of the feeding track is machined at one end of the feeding cylinder. A discharge hole communicating with the third feeding port is machined at the other end of the feeding cylinder. The aluminum alloy cylinder sequentially enters the interior of the feeding area through the feeding track, the first feeding port, the interior of the feeding cylinder, the discharge hole, and the third feeding port.

[0010] Further, a first motor for driving the first connecting shaft to rotate is provided on the feeding cylinder. The first connecting shaft is rotatably connected to the feeding cylinder. First helical gears are respectively provided at both ends of the first connecting shaft. Second connecting shafts are respectively rotatably installed on both sides of the feeding cylinder. Second helical gears meshing with the first helical gears are respectively provided at one end of each second connecting shaft. A plurality of second gears are respectively provided on each second connecting shaft. A plurality of spiral transport rollers for driving the aluminum alloy cylinder to rotate and driving the aluminum alloy cylinder to move horizontally are respectively rotatably installed on both sides of the feeding cylinder. First gears meshing with the second gears are respectively provided at one end of each spiral transport roller.

[0011] Further, the casting mechanism is as follows: a lower housing is arranged on the third side of the circular frame body. A second feed inlet communicating with the third feed inlet is arranged on one side of the lower housing. An upper mold housing is arranged on the top of the lower housing. A first electric cylinder is arranged at the bottom of the lower housing. The output shaft of the first electric cylinder is fixedly connected to the bottom of the lower mold housing. Guide rods are arranged at the bottom of the lower mold housing and are slidably connected to the bottom plate of the lower housing in the vertical direction. A channel for transporting the aluminum alloy column is formed between the lower mold housing and the upper mold housing. A lower mold, a flow splitter bridge and an upper mold which are fixedly connected are arranged on one side of the upper mold housing. The flow splitter bridge is located between the lower mold and the upper mold. An extrusion profile hole communicating with the outlet end of the channel is machined on the upper mold. A plurality of flow guiding plates are arranged on the flow splitter bridge along the circumferential direction. A flow splitting hole is formed between each adjacent pair of flow guiding plates. A mold core is arranged on the plurality of flow guiding plates. An extrusion profile hole is arranged on the lower mold. The mold core is located inside the extrusion profile hole. The space between the extrusion profile hole on the lower mold and the mold core is used for casting the aluminum alloy column into an aluminum alloy motor housing. The extrusion profile hole, the plurality of flow splitting holes, and the space between the extrusion profile hole and the mold core are communicated with each other.

[0012] Further, a position sensor for detecting the position of the aluminum alloy column is arranged outside the feeding area.

[0013] The beneficial effects of the present invention are as follows: (1) In the present invention, the lower mold housing drives the aluminum alloy column to move into the channel formed between the upper mold housing and the lower mold housing. The aluminum alloy column sequentially passes through the extrusion profile hole of the upper mold, the plurality of flow splitting holes of the flow splitter bridge, and the space between the mold core and the extrusion profile hole to continuously discharge and form an aluminum alloy motor housing, which can improve the forming quality and the qualified product rate of the housing casting; (2) In the present invention, when the slider at one end of the extrusion rod is slidably connected to the chute at the bottom of the continuous extrusion section, it can drive the extrusion rod to continuously move horizontally on the base. When the slider at one end of the extrusion rod is slidably connected to the chute at the bottom of the retraction section, the extrusion rod retracts. The aluminum alloy column can continuously discharge to form an aluminum alloy motor housing, avoiding the situation of uneven extrusion and cracks in the aluminum alloy motor housing; (3) In the present invention, the first feeding mechanism and the second feeding mechanism feed continuously respectively. The third feed inlet on the circular frame body can be rotated to the outlet end of the first feeding mechanism or the second feeding mechanism to enter the feeding area respectively, and can feed continuously, having the advantage of high working efficiency; (4) In the present invention, the heating box uniformly heats the rotating aluminum alloy column. The heated aluminum alloy column sequentially passes through the discharge hole of the feeding cylinder and the third feed inlet to enter the inside of the feeding area. The output end of the second electric cylinder pushes the aluminum alloy column inside the feeding area to enter the lower housing through the second feed inlet. The lower housing drives the aluminum alloy column to move into the channel formed between the upper mold housing and the lower mold housing, and then the aluminum alloy column is subjected to squeeze casting, avoiding the heat loss of the aluminum alloy column during the material transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of an embodiment of an extrusion casting device for an aluminum alloy motor housing according to the present invention; Figure 2 is Figure 1 a schematic structural view from another angle; Figure 3 is Figure 2 a schematic structural view with the base removed in Figure 4 is a schematic structural view of the cam; Figure 5 is a schematic structural view of the first feeding mechanism, the casting mechanism, the second feeding mechanism and the circular frame; Figure 6 is a schematic structural view of the parts on the circular frame; Figure 7 is a schematic structural view of the bottom of the circular frame; Figure 8 is a schematic structural view of the first feeding mechanism; Figure 9 is Figure 8 a schematic structural view from another angle; Figure 10 is Figure 8 a schematic structural view with the feeding cylinder removed in Figure 11 is a schematic structural view of the parts on the second connecting shaft; Figure 12 is a schematic structural view of the casting mechanism; Figure 13 is a schematic structural view of the aluminum alloy motor housing; Figure 14 is Figure 12 a schematic structural view with the lower housing removed in Figure 15 is Figure 14 a schematic structural view with the upper mold housing and the extrusion rod removed in Figure 16 is a schematic structural view of the lower mold, the runner bridge and the upper mold; Figure 17 is Figure 16 a schematic structural view from another angle; Figure 18 is a schematic structural view of the lower mold; Figure 19 is a schematic structural view of the runner bridge; Figure 20 is Figure 19 a schematic structural view from another angle; Figure 21 is a schematic structural view of the upper mold.

[0015] Reference numerals: 1. First feeding mechanism; 101. Feeding cylinder; 102. First feeding port; 103. Feeding track; 104. First motor; 105. Heating box; 106. First connecting shaft; 107. First gear; 108. First helical gear; 109. Second helical gear; 110. Second gear; 111. Screw conveyor roller; 112. Second connecting shaft; 113. Discharge hole; 2. Casting mechanism; 201. Upper mold housing; 202. First electric cylinder; 203. Lower housing; 204. Lower mold; 205. Diverting bridge; 206. Upper mold; 207. Lower mold housing; 208. Guide rod; 209. Extruded profile hole; 210. Die core; 211. Diverting hole; 212. Inserted profile hole; 213. Deflector; 214. Second feeding port; 3. Second feeding mechanism; 4. Cam; 401. Continuous extrusion section; 402. Retraction section; 5. Base; 6. Extrusion rod; 7. Third gear; 8. Second motor; 9. Slide block; 10. Third connecting shaft; 11. Fourth connecting shaft; 12. Fourth gear; 13. Slide groove; 14. Second electric cylinder; 15. Third motor; 16. Circular frame; 17. Feeding area; 18. Position sensor; 19. Third feeding port; 20. Fifth gear; 21. Sixth gear; 22. Aluminum alloy cylinder; 23. Aluminum alloy motor housing; 24. Fifth connecting shaft. Detailed implementation manners

[0016] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0017] As Figures 1 to 7 , Figure 13 shown, the squeeze casting device for the aluminum alloy motor housing of this embodiment is composed of a first feeding mechanism 1, a casting mechanism 2, a second feeding mechanism 3, a cam 4, a base 5, an extrusion rod 6, a third gear 7, a second motor 8, a slide block 9, a third connecting shaft 10, a fourth connecting shaft 11, a fourth gear 12, a slide groove 13, a second electric cylinder 14, a third motor 15, a circular frame 16, a feeding area 17, a position sensor 18, a third feeding port 19, a fifth gear 20, a sixth gear 21, an aluminum alloy cylinder 22, an aluminum alloy motor housing 23, and a fifth connecting shaft 24.

[0018] A first feeding mechanism 1 and a second feeding mechanism 3 for transporting the aluminum alloy cylinder 22 are respectively arranged on the base 5. A circular frame 16 is rotatably installed on the base 5. The first feeding mechanism 1 is located on the first side of the circular frame 16, and the second feeding mechanism 3 is located on the second side of the circular frame 16. The first feeding mechanism 1 and the second feeding mechanism 3 are symmetric to each other with the central axis of the circular frame 16 as the axis of symmetry. A feeding area 17 is arranged on the circular frame 16, and a position sensor 18 for detecting the position of the aluminum alloy cylinder 22 is arranged outside the feeding area 17. The first feeding mechanism 1 and the second feeding mechanism 3 respectively and alternately transport the aluminum alloy cylinder 22 into the feeding area 17. A third feeding port 19 communicating with the feeding area 17 is machined on the circular frame 16, and the third feeding port 19 respectively moves to communicate with the outlet ends of the first feeding mechanism 1 and the second feeding mechanism 3. A casting mechanism 2 is arranged on the base 5 at the third side of the circular frame 16. A second electric cylinder 14 for pushing the aluminum alloy cylinder 22 in the feeding area 17 into the casting mechanism 2 is arranged on the base 5. An extrusion rod 6 for continuously extruding and casting the aluminum alloy cylinder 22 in the casting mechanism 2 to form an aluminum alloy motor housing 23 is arranged on the base 5.

[0019] As Figure 3 shown, a second motor 8 is arranged on the base 5. The output shaft of the second motor 8 is fixedly connected to the output shaft of the fourth connecting shaft 11. The fourth connecting shaft 11 is rotatably connected to the base 5. A fourth gear 12 is arranged on the fourth connecting shaft 11. A third connecting shaft 10 is rotatably installed on the base 5. A third gear 7 meshing with the fourth gear 12 is arranged at the bottom of the third connecting shaft 10. A cam 4 is arranged at the top of the third connecting shaft 10. As Figure 4 shown, the cam 4 is composed of a continuous extrusion section 401 and a retraction section 402 connected. When the slider 9 at one end of the extrusion rod 6 is slidably connected to the bottom chute 13 of the continuous extrusion section 401, it can drive the extrusion rod 6 to move continuously in the horizontal direction on the base 5. When the slider 9 at one end of the extrusion rod 6 is slidably connected to the bottom chute 13 of the retraction section 402, the extrusion rod 6 retracts. A chute 13 is arranged at the bottom of the cam 4, and a slider 9 slidably connected to the chute 13 is arranged at one end of the extrusion rod 6.

[0020] As Figure 5 , Figure 7 shown, a third motor 15 is arranged at the bottom of the base 5. The output shaft of the third motor 15 is fixedly connected to the fifth connecting shaft 24. The fifth connecting shaft 24 is rotatably connected to the base 5. A fifth gear 20 is arranged on the fifth connecting shaft 24. A sixth gear 21 meshing with the fifth connecting shaft 24 is arranged at the bottom of the circular frame 16.

[0021] The structure of the first feeding mechanism 1 is the same as that of the second feeding mechanism 3. As Figures 8 to 11As shown in the figure, the first feeding mechanism 1 is composed of a feeding cylinder 101, a first feeding port 102, a feeding track 103, a first motor 104, a heating box 105, a first connecting shaft 106, a first gear 107, a first helical gear 108, a second helical gear 109, a second gear 110, a spiral conveying roller 111, a second connecting shaft 112, and a discharge hole 113 connected together.

[0022] The first feeding mechanism 1 is as follows: A feeding track 103 for horizontally transporting the aluminum alloy cylinder 22 is arranged on the first side of the circular frame 16. A heating box 105 for heating the aluminum alloy cylinder 22 is arranged on one side of the feeding track 103. A feeding cylinder 101 is arranged above the heating box 105. One end of the feeding cylinder 101 is processed with a first feeding port 102 that communicates with the outlet end of the feeding track 103. The other end of the feeding cylinder 101 is processed with a discharge hole 113 that communicates with the third feeding port 19. The aluminum alloy cylinder 22 enters the interior of the feeding area 17 through the feeding track 103, the first feeding port 102, the interior of the feeding cylinder 101, the discharge hole 113, and the third feeding port 19 in sequence.

[0023] A first motor 104 for driving the first connecting shaft 106 to rotate is arranged on the feeding cylinder 101. The first connecting shaft 106 is rotatably connected to the feeding cylinder 101. First helical gears 108 are arranged at both ends of the first connecting shaft 106. Second connecting shafts 112 are rotatably installed on both sides of the feeding cylinder 101. A second helical gear 109 meshing and driving with the first helical gear 108 is arranged at one end of each second connecting shaft 112. A plurality of second gears 110 are arranged on each second connecting shaft 112. A plurality of spiral conveying rollers 111 for driving the aluminum alloy cylinder 22 to rotate and driving the aluminum alloy cylinder 22 to move horizontally are rotatably installed on both sides of the feeding cylinder 101. A first gear 107 meshing and driving with the second gear 110 is arranged at one end of each spiral conveying roller 111.

[0024] As Figure 12 、 Figures 14 to 21 As shown in the figure, the casting mechanism 2 is composed of an upper mold housing 201, a first electric cylinder 202, a lower housing 203, a lower mold 204, a flow dividing bridge 205, an upper mold 206, a lower mold housing 207, a guide rod 208, an extruded profile hole 209, a mold core 210, a flow dividing hole 211, an extruded into profile hole 212, a flow guiding plate 213, and a second feeding port 214 connected together.

[0025] The casting mechanism 2 is as follows: a lower housing 203 is arranged on the third side of the circular housing 16. A second feed inlet 214 communicating with the third feed inlet 19 is arranged on one side of the lower housing 203. An upper mold housing 201 is arranged on the top of the lower housing 203. A first electric cylinder 202 is arranged at the bottom of the lower housing 203. The output shaft of the first electric cylinder 202 is fixedly connected to the bottom of the lower mold housing 207. A guide rod 208 which is slidably connected to the bottom plate of the lower housing 203 in the vertical direction is arranged at the bottom of the lower mold housing 207. A channel for transporting the aluminum alloy column 22 is formed between the lower mold housing 207 and the upper mold housing 201. A lower mold 204, a flow dividing bridge 205 and an upper mold 206 which are fixedly connected are arranged on one side of the upper mold housing 201. The flow dividing bridge 205 is located between the lower mold 204 and the upper mold 206. An extrusion profile hole 212 communicating with the outlet end of the channel is machined on the upper mold 206. A plurality of flow guiding plates 213 are arranged on the flow dividing bridge 205 along the circumferential direction. A flow dividing hole 211 is formed between each adjacent pair of flow guiding plates 213. A mold core 210 is arranged on the plurality of flow guiding plates 213. An extrusion profile hole 209 is arranged on the lower mold 204. The mold core 210 is located inside the extrusion profile hole 209. The space between the extrusion profile hole 209 on the lower mold 204 and the mold core 210 is used to form the aluminum alloy column 22 into an aluminum alloy motor housing 23. The extrusion profile hole 212, the plurality of flow dividing holes 211, the extrusion profile hole 209 and the space between the mold core 210 communicate with each other.

[0026] The working principle of this embodiment is as follows: (1) Aluminum alloy columns 22 are respectively placed on the first feeding mechanism 1 and the second feeding mechanism 3, and the first feeding mechanism 1 and the second feeding mechanism 3 respectively feed continuously: the aluminum alloy columns 22 are placed on the feeding track 103, and the aluminum alloy motor housing 23 on the feeding track 103 enters the inside of the feeding cylinder 101 through the first feed inlet 102 of the feeding cylinder 101. The output shaft of the first motor 104 drives the first connecting shaft 106 to rotate. The first connecting shaft 106 drives the first helical gears 108 at both ends to rotate. Each first helical gear 108 respectively drives the second helical gear 109 to rotate through meshing transmission with the second helical gear 109. Each second helical gear 109 respectively drives the second connecting shaft 112 to rotate. Each second connecting shaft 112 respectively drives a plurality of second gears 110 to rotate. Each second gear 110 respectively drives the first gear 107 to rotate through meshing transmission with the first gear 107. Each first gear 107 respectively drives the spiral transport roller 111 to rotate. The plurality of spiral transport rollers 111 located below the aluminum alloy column 22 are used to drive the aluminum alloy column 22 to rotate during the linear transportation process. The heating box 105 uniformly heats the rotating aluminum alloy column 22. The heated aluminum alloy column 22 discharges through the discharge hole 113 of the feeding cylinder 101. The working principle of the second feeding mechanism 3 is the same as that of the first feeding mechanism 1.

[0027] (2) When the aluminum alloy cylinder 22 on the first feeding mechanism 1 is transported to a position close to the position sensor 18 on the circular frame 16, the position sensor 18 converts the position information of the aluminum alloy cylinder 22 on the first feeding mechanism 1 into an electrical signal and sends it to the controller. The controller controls the third motor 15 to start. The output shaft of the third motor 15 drives the fifth connecting shaft 24 to rotate. The fifth connecting shaft 24 drives the fifth gear 20 to rotate. The fifth gear 20 drives the sixth gear 21 to rotate through meshing transmission with the sixth gear 21. The sixth gear 21 drives the circular frame 16 to rotate. The third feeding port 19 on the circular frame 16 rotates to communicate with the discharge hole 113 of the feeding cylinder 101. The aluminum alloy cylinder 22 inside the feeding cylinder 101 sequentially enters the inside of the feeding area 17 through the discharge hole 113 and the third feeding port 19. The output shaft of the third motor 15 drives the fifth connecting shaft 24 to rotate in the reverse direction. The fifth connecting shaft 24 drives the fifth gear 20 to rotate. The fifth gear 20 drives the sixth gear 21 to rotate through meshing transmission with the sixth gear 21. The sixth gear 21 drives the circular frame 16 to rotate. The third feeding port 19 of the circular frame 16 rotates to communicate with the second feeding port 214 of the lower housing 203. The output shaft of the second electric cylinder 14 pushes the aluminum alloy cylinder 22 located in the feeding area 17 through the second feeding port 214 onto the lower die housing 207.

[0028] (3) Extrusion casting the aluminum alloy cylinder 22 to form an aluminum alloy motor housing 23: The output end of the first electric cylinder 202 drives the lower die housing 207 to move upward in the vertical direction inside the lower housing 203. The bottom of the lower die housing 207 is clamped with the bottom plate of the lower housing 203. At the same time, the guide rod 208 at the bottom of the lower die housing 207 moves upward in the vertical direction with the bottom plate of the lower housing 203. The lower die housing 207 drives the aluminum alloy cylinder 22 to move into the channel formed by the upper die housing 201 and the lower die housing 207.

[0029] The output shaft of the second motor 8 drives the fourth connecting shaft 11 to rotate. The fourth connecting shaft 11 drives the fourth gear 12 to rotate. The fourth gear 12 drives the third gear 7 to rotate by meshing with the third gear 7. The third gear 7 drives the cam 4 to rotate through the third connecting shaft 10. The slider 9 at one end of the extrusion rod 6 is slidably connected to the chute 13 at the bottom of the cam 4. The rotation of the cam 4 drives the extrusion rod 6 to move horizontally on the base 5. When the slider 9 at one end of the extrusion rod 6 is slidably connected to the chute 13 at the bottom of the continuous extrusion section 401, it can drive the extrusion rod 6 to move continuously horizontally on the base 5. The extrusion rod 6 continuously pushes out the aluminum alloy column 22 in the channel formed by the upper mold housing 201 and the lower mold housing 207. The aluminum alloy column 22 continuously discharges through the extrusion profile hole 212 of the upper mold 206, the multiple shunt holes 211 of the shunt bridge 205, and the space between the mold core 210 and the extrusion profile hole 209 to form the aluminum alloy motor housing 23. When the slider 9 at one end of the extrusion rod 6 is slidably connected to the chute 13 at the bottom of the retraction section 402, the extrusion rod 6 retracts.

[0030] The above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. An extrusion casting device for an aluminum alloy motor housing, characterized in that: A first feeding mechanism (1) and a second feeding mechanism (3) for transporting aluminum alloy cylinders (22) are respectively arranged on a base (5). A circular frame body (16) is rotatably installed on the base (5). The first feeding mechanism (1) is located on the first side of the circular frame body (16), and the second feeding mechanism (3) is located on the second side of the circular frame body (16). The first feeding mechanism (1) and the second feeding mechanism (3) are symmetric with each other with the center line of the circular frame body (16) as the axis of symmetry. A feeding area (17) is arranged on the circular frame body (16). The first feeding mechanism (1) and the second feeding mechanism (3) respectively and alternately transport the aluminum alloy cylinders (22) into the feeding area (17). A third feeding port (19) communicating with the feeding area (17) is machined on the circular frame body (16). The third feeding port (19) respectively moves to communicate with the outlet ends of the first feeding mechanism (1) and the second feeding mechanism (3). A casting mechanism (2) is arranged on the base (5) on the third side of the circular frame body (16). A second electric cylinder (14) for pushing the aluminum alloy cylinder (22) in the feeding area (17) into the casting mechanism (2) is arranged on the base (5). An extrusion rod (6) for continuously extruding and casting the aluminum alloy cylinder (22) in the casting mechanism (2) to form an aluminum alloy motor housing (23) is arranged on the base (5). The described casting mechanism (2) is as follows: A lower housing (203) is provided on the third side of the circular frame (16). On one side of the lower housing (203), there is a second feed port (214) that communicates with the third feed port (19). On the top of the lower housing (203), there is an upper mold housing (201). At the bottom of the lower housing (203), there is a first electric cylinder (202). The output shaft of the first electric cylinder (202) is fixedly connected to the bottom of the lower mold housing (207). At the bottom of the lower mold housing (207), there are guide rods (208) that are slidably connected to the bottom plate of the lower housing (203) in the vertical direction. A channel for transporting the aluminum alloy cylinder (22) is formed between the lower mold housing (207) and the upper mold housing (201). On one side of the upper mold housing (201), there are fixedly connected a lower mold (204), a distribution bridge (205), and an upper mold (206). The distribution bridge (205) is located between the lower mold (204) and the upper mold (206). An extrusion profile hole (212) that communicates with the outlet end of the channel is machined on the upper mold (206). A plurality of guide plates (213) are arranged on the distribution bridge (205) along the circumferential direction. A distribution hole (211) is formed between each adjacent pair of guide plates (213). A mold core (210) is arranged on the plurality of guide plates (213). An extrusion profile hole (209) is provided on the lower mold (204). The mold core (210) is located inside the extrusion profile hole (209). The space between the extrusion profile hole (209) on the lower mold (204) and the mold core (210) is used to cast the aluminum alloy cylinder (22) into an aluminum alloy motor housing (23). The extrusion profile hole (212), the plurality of distribution holes (211), the extrusion profile hole (209), and the space between the mold core (210) communicate with each other.

2. The squeeze casting device for the aluminum alloy motor housing according to claim 1, wherein: At the bottom of the described base (5), there is a third motor (15). The output shaft of the third motor (15) is fixedly connected to a fifth connecting shaft (24). The fifth connecting shaft (24) is rotatably connected to the base (5). A fifth gear (20) is arranged on the fifth connecting shaft (24). At the bottom of the circular frame (16), there is a sixth gear (21) that meshes with the fifth connecting shaft (24) for transmission.

3. The squeeze casting device for the aluminum alloy motor housing according to claim 1, characterized in that: On the described base (5), there is a second motor (8). The output shaft of the second motor (8) is fixedly connected to the output shaft of a fourth connecting shaft (11). The fourth connecting shaft (11) is rotatably connected to the base (5). A fourth gear (12) is arranged on the fourth connecting shaft (11). A third connecting shaft (10) is rotatably installed on the base (5). At the bottom of the third connecting shaft (10), there is a third gear (7) that meshes with the fourth gear (12) for transmission. At the top of the third connecting shaft (10), there is a cam (4). A chute (13) is arranged at the bottom of the cam (4). One end of a pressing rod (6) is provided with a slider (9) that is slidably connected to the chute (13).

4. The squeeze casting device for the aluminum alloy motor housing according to claim 3, characterized in that: The described cam (4) is composed of a continuous extrusion section (401) and a retraction section (402) connected together.

5. The squeeze casting device for the aluminum alloy motor housing according to claim 1, characterized in that, The structure of the first feeding mechanism (1) is the same as that of the second feeding mechanism (3). The first feeding mechanism (1) is as follows: a feeding track (103) for horizontally transporting the aluminum alloy cylinder (22) is arranged on the first side of the circular frame body (16); a heating box (105) for heating the aluminum alloy cylinder (22) is arranged on one side of the feeding track (103); a feeding cylinder (101) is arranged above the heating box (105); a first feeding port (102) communicating with the outlet end of the feeding track (103) is machined at one end of the feeding cylinder (101); a discharge hole (113) communicating with the third feeding port (19) is machined at the other end of the feeding cylinder (101); the aluminum alloy cylinder (22) enters the interior of the feeding area (17) in sequence through the feeding track (103), the first feeding port (102), the interior of the feeding cylinder (101), the discharge hole (113), and the third feeding port (19).

6. The squeeze casting device for an aluminum alloy motor housing according to claim 5, characterized in that: A first motor (104) for driving the first connecting shaft (106) to rotate is arranged on the feeding cylinder (101). The first connecting shaft (106) is rotationally connected with the feeding cylinder (101). First helical gears (108) are respectively arranged at both ends of the first connecting shaft (106). Second connecting shafts (112) are respectively rotationally installed on both sides of the feeding cylinder (101). Second helical gears (109) meshing and driving with the first helical gears (108) are respectively arranged at one end of each second connecting shaft (112). A plurality of second gears (110) are respectively arranged on each second connecting shaft (112). A plurality of spiral conveying rollers (111) for driving the aluminum alloy cylinder (22) to rotate and driving the aluminum alloy cylinder (22) to move horizontally are respectively rotationally installed on both sides of the feeding cylinder (101). First gears (107) meshing and driving with the second gears (110) are respectively arranged at one end of each spiral conveying roller (111).

7. The squeeze casting device for the aluminum alloy motor housing according to claim 1, characterized in that: A position sensor (18) for detecting the position of the aluminum alloy cylinder (22) is arranged outside the feeding area (17).

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