An extrusion casting apparatus for an aluminum alloy motor housing

Abstract

This invention discloses an extrusion casting device for aluminum alloy motor housings, relating to the field of parts casting technology. A first feeding mechanism and a second feeding mechanism are provided on a base. A circular frame is rotatably mounted on the base, and a feeding area is provided on the circular frame. A third feeding port moves to communicate with the outlet ends of the first and second feeding mechanisms. A casting mechanism is provided on the base, and a second electric cylinder is provided on the base to push the aluminum alloy column in the feeding area into the casting mechanism. An extrusion rod is provided on the base to continuously extrude the aluminum alloy column in the casting mechanism to form the aluminum alloy motor housing. In this invention, the lower mold housing drives the aluminum alloy column to move into the channel formed by the upper and lower mold housings. The aluminum alloy column sequentially passes through the extrusion profile hole of the upper mold, multiple diversion holes of the diversion bridge, and the space between the mold core and the extrusion profile hole to continuously discharge, forming the aluminum alloy motor housing. This can improve the forming quality and yield of the housing castings.

Description

Technical Field

[0001] This invention relates to the field of parts casting technology, and in particular to a squeeze casting apparatus for aluminum alloy motor housings. Background Technology

[0002] Aluminum alloys are ideal materials for manufacturing motor housings due to their advantages such as low density, high specific strength, and good thermal conductivity. Using aluminum alloy motor housings can effectively reduce motor weight, improve heat dissipation efficiency, and thus enhance the overall performance and reliability of the motor.

[0003] Existing extrusion casting equipment is prone to defects such as internal porosity and air holes when producing aluminum alloy motor housings, resulting in low density of the castings and affecting the forming quality and yield of the housing castings. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an extrusion casting device for aluminum alloy motor housings that improves the forming quality and yield of housing castings.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: A first feeding mechanism and a second feeding mechanism for transporting aluminum alloy columns are respectively set on the base. A circular frame is rotatably mounted 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 symmetrical about the center line of the circular frame. A feeding area is set on the circular frame. The first feeding mechanism and the second feeding mechanism take turns transporting aluminum alloy columns into the feeding area. A third feeding port connected to the feeding area is machined on the circular frame. The third feeding port moves to connect with the outlet ends of the first feeding mechanism and the second feeding mechanism. A casting mechanism is set on the base located on the third side of the circular frame. A second electric cylinder is set on the base to push the aluminum alloy columns in the feeding area into the casting mechanism. An extrusion rod is set on the base to continuously extrude and cast the aluminum alloy columns in the casting mechanism to form an aluminum alloy motor housing.

[0006] Furthermore, a third motor is provided at the bottom of the base, the output shaft of the third motor is fixedly connected to the fifth connecting shaft, the fifth connecting shaft is rotatably connected to the base, a fifth gear is provided on the fifth connecting shaft, and a sixth gear that meshes with the fifth connecting shaft is provided at the bottom of the circular frame.

[0007] Furthermore, 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 mounted on the base, a third gear is provided at the bottom of the third connecting shaft to mesh with the fourth gear, a cam is provided at the top of the third connecting shaft, a sliding groove is provided at the bottom of the cam, and a slider is provided at one end of the extrusion rod to slide in connection with the sliding groove.

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

[0009] Furthermore, 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 horizontal transportation of aluminum alloy columns is provided on the first side of the circular frame; a heating box for heating the aluminum alloy columns is provided on one side of the feeding track; a feeding cylinder is provided above the heating box; a first feeding port is machined at one end of the feeding cylinder and communicates with the outlet end of the feeding track; and a discharge hole is machined at the other end of the feeding cylinder and communicates with the third feeding port. The aluminum alloy columns enter the feeding area by sequentially passing through the feeding track, the first feeding port, the inside of the feeding cylinder, the discharge hole, and the third feeding port.

[0010] Furthermore, the feed cylinder is equipped with a first motor that drives the first connecting shaft to rotate. The first connecting shaft is rotatably connected to the feed cylinder. A first helical gear is provided at both ends of the first connecting shaft. A second connecting shaft is rotatably mounted on both sides of the feed cylinder. A second helical gear that meshes with the first helical gear is provided at one end of each second connecting shaft. Multiple second gears are provided on each second connecting shaft. Multiple spiral conveying rollers that drive the aluminum alloy column to rotate and move the aluminum alloy column in the horizontal direction are rotatably mounted on both sides of the feed cylinder. A first gear that meshes with the second gear is provided at one end of each spiral conveying roller.

[0011] Furthermore, the casting mechanism comprises: a lower housing located on the third side of the circular frame; a second feed port connected to the third feed port on one side of the lower housing; an upper mold housing on the top of the lower housing; a first electric cylinder at the bottom of the lower housing; the output shaft of the first electric cylinder being fixedly connected to the bottom of the lower mold housing; a guide rod slidably connected to the bottom plate of the lower housing in a vertical direction at the bottom of the lower mold housing; a channel for transporting the aluminum alloy column being formed between the lower mold housing and the upper mold housing; and a lower mold, a flow divider bridge, and an upper mold fixedly connected on one side of the upper mold housing. The flow divider bridge is located between the lower die and the upper die. The upper die has extrusion profile holes that are connected to the outlet end of the channel. Multiple guide plates are arranged along the circumferential direction on the flow divider bridge. Each adjacent guide plate forms a flow divider hole. A mold core is arranged on the multiple guide plates. The lower die has extrusion profile holes. The mold core is located inside the extrusion profile holes. The space between the extrusion profile holes on the lower die and the mold core is used to cast the aluminum alloy column into an aluminum alloy motor housing. The spaces between the extrusion profile holes, the multiple flow dividers, the extrusion profile holes, and the mold core are interconnected.

[0012] Furthermore, a position sensor for detecting the position of the aluminum alloy column is provided on the outside of the feeding area.

[0013] The beneficial effects of the present invention are as follows: (1) The present invention uses the lower mold shell to drive the aluminum alloy column to move into the channel formed by the upper mold shell and the lower mold shell. The aluminum alloy column passes through the extrusion profile hole of the upper mold, the multiple diversion holes of the diversion bridge, and the space between the mold core and the extrusion profile hole to continuously discharge the aluminum alloy motor shell, which can improve the forming quality and qualified product rate of the shell casting.

[0014] (2) The present invention adopts the method that when the slider at one end of the extrusion rod is slidably connected to the groove at the bottom of the continuous extrusion section, the extrusion rod can be driven to move continuously in the horizontal direction on the base. When the slider at one end of the extrusion rod is slidably connected to the groove at the bottom of the retraction section, the extrusion rod is retracted, and the aluminum alloy column can be continuously discharged to form an aluminum alloy motor housing, thus avoiding uneven extrusion and cracks in the aluminum alloy motor housing.

[0015] (3) The present invention adopts a first feeding mechanism and a second feeding mechanism to feed continuously, and the third feeding port on the circular frame can be rotated to the outlet end of the first feeding mechanism or the second feeding mechanism to enter the feeding area, which can feed continuously and has the advantage of high working efficiency.

[0016] (4) The present invention uses a heating box to uniformly heat the rotating aluminum alloy column. After heating, the aluminum alloy column enters the feeding area through the discharge hole of the feeding cylinder and the third feeding port in sequence. The output end of the second electric cylinder pushes the aluminum alloy column in the feeding area through the second feeding port into the lower mold shell. The lower mold shell drives the aluminum alloy column to move into the channel formed by the upper mold shell and the lower mold shell. Subsequently, the aluminum alloy column is extruded and cast to avoid heat loss of the aluminum alloy column during the material transportation process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a structure of an embodiment of the extrusion casting apparatus for the aluminum alloy motor housing of the present invention;

[0018] Figure 2 yes Figure 1 A structural diagram from another angle;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure with the base removed;

[0020] Figure 4 This is a schematic diagram of the cam structure;

[0021] Figure 5 This is a structural diagram of the first feeding mechanism, the casting mechanism, the second feeding mechanism, and the circular frame.

[0022] Figure 6 This is a schematic diagram of the components on a circular frame;

[0023] Figure 7 This is a schematic diagram of the bottom structure of the circular frame;

[0024] Figure 8 This is a schematic diagram of the first feeding mechanism;

[0025] Figure 9 yes Figure 8 A structural diagram from another angle;

[0026] Figure 10 yes Figure 8 A schematic diagram of the structure without the feed cylinder;

[0027] Figure 11 This is a schematic diagram of the components on the second connecting shaft;

[0028] Figure 12 This is a schematic diagram of the casting mechanism;

[0029] Figure 13 This is a structural schematic diagram of an aluminum alloy motor housing;

[0030] Figure 14 yes Figure 12A schematic diagram of the structure with the lower shell removed;

[0031] Figure 15 yes Figure 14 A schematic diagram of the structure with the upper housing and extrusion rod removed;

[0032] Figure 16 This is a structural diagram of the lower mold, the flow divider bridge, and the upper mold;

[0033] Figure 17 yes Figure 16 A structural diagram from another angle;

[0034] Figure 18 This is a schematic diagram of the lower mold structure;

[0035] Figure 19 This is a schematic diagram of the diversion bridge structure;

[0036] Figure 20 yes Figure 19 A structural diagram from another angle;

[0037] Figure 21 This is a schematic diagram of the upper mold structure.

[0038] Reference numerals: 1. First feeding mechanism; 101. Feed cylinder; 102. First feed inlet; 103. Feed 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. Spiral 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. Diverter bridge; 206. Upper mold; 207. Lower mold housing; 208. Guide rod; 209. Extrusion profile hole; 210. Mold core; 211. Diverter hole; 212. Extrusion profile hole; 213. Guide plate; 214. Second feed inlet; 3. Second feeding mechanism; 4. Cam; 401. Continuous extrusion section; 402. Retracting section; 5. Base; 6. Extrusion rod; 7. Third gear; 8. Second motor; 9. Slider; 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 feed inlet; 20. Fifth gear; 21. Sixth gear; 22. Aluminum alloy column; 23. Aluminum alloy motor housing; 24. Fifth connecting shaft. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this invention clearer, the 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 merely illustrative and not intended to limit the invention.

[0040] like Figures 1 to 7 , Figure 13 As shown, the extrusion casting device for the aluminum alloy motor housing in 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 slider 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 column 22, an aluminum alloy motor housing 23, and a fifth connecting shaft 24.

[0041] A first feeding mechanism 1 and a second feeding mechanism 3 for transporting aluminum alloy cylinders 22 are respectively provided on the base 5. A circular frame 16 is rotatably mounted 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 symmetrical about the center line of the circular frame 16. A feeding area 17 is provided on the circular frame 16, and a position sensor 18 for detecting the position of the aluminum alloy cylinders 22 is provided on the outside of the feeding area 17. The first feeding mechanism 1 and the second feeding mechanism 3 are respectively rotated... The flow transports the aluminum alloy column 22 to the feeding area 17. The circular frame 16 is machined with a third feeding port 19 that communicates with the feeding area 17. The third feeding port 19 moves to communicate with the outlet ends of the first feeding mechanism 1 and the second feeding mechanism 3. The base 5 is equipped with a casting mechanism 2 located on the third side of the circular frame 16. The base 5 is equipped with a second electric cylinder 14 that pushes the aluminum alloy column 22 in the feeding area 17 into the casting mechanism 2. The base 5 is equipped with an extrusion rod 6 that continuously extrudes and casts the aluminum alloy column 22 in the casting mechanism 2 to form an aluminum alloy motor housing 23.

[0042] like Figure 3 As shown, a second motor 8 is mounted 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 mounted on the fourth connecting shaft 11. A third connecting shaft 10 is rotatably mounted on the base 5. A third gear 7 that meshes with the fourth gear 12 is mounted at the bottom of the third connecting shaft 10. A cam 4 is mounted at the top of the third connecting shaft 10. Figure 4As shown, the cam 4 is composed of a continuous extrusion section 401 and a retracting section 402 connected together. When the slider 9 at one end of the extrusion rod 6 is slidably connected to the groove 13 at the bottom 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 groove 13 at the bottom of the retracting section 402, the extrusion rod 6 retracts. The bottom of the cam 4 is provided with a groove 13, and one end of the extrusion rod 6 is provided with a slider 9 that is slidably connected to the groove 13.

[0043] like Figure 5 , Figure 7 As shown, a third motor 15 is provided 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 provided on the fifth connecting shaft 24. A sixth gear 21 that meshes with the fifth connecting shaft 24 is provided at the bottom of the circular frame 16.

[0044] The structure of the first feeding mechanism 1 is the same as that of the second feeding mechanism 3, such as... Figures 8 to 11 As shown, 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.

[0045] The first feeding mechanism 1 is as follows: a feeding track 103 for horizontal transport of aluminum alloy column 22 is provided on the first side of the circular frame 16; a heating box 105 for heating aluminum alloy column 22 is provided on one side of the feeding track 103; a feeding cylinder 101 is provided above the heating box 105; a first feeding port 102 is machined at one end of the feeding cylinder 101 and communicates with the outlet end of the feeding track 103; and a discharge hole 113 is machined at the other end of the feeding cylinder 101 and communicates with the third feeding port 19. The aluminum alloy column 22 enters the feeding area 17 by passing through the feeding track 103, the first feeding port 102, the inside of the feeding cylinder 101, the discharge hole 113, and the third feeding port 19 in sequence.

[0046] A first motor 104 is provided on the feed cylinder 101 to drive the first connecting shaft 106 to rotate. The first connecting shaft 106 is rotatably connected to the feed cylinder 101. A first helical gear 108 is provided at both ends of the first connecting shaft 106. A second connecting shaft 112 is rotatably mounted on both sides of the feed cylinder 101. A second helical gear 109 is provided at one end of each second connecting shaft 112 to mesh with the first helical gear 108. A plurality of second gears 110 are provided on each second connecting shaft 112. A plurality of spiral conveying rollers 111 are rotatably mounted on both sides of the feed cylinder 101 to drive the aluminum alloy column 22 to rotate and move the aluminum alloy column 22 in the horizontal direction. A first gear 107 is provided at one end of each spiral conveying roller 111 to mesh with the second gear 110.

[0047] like Figure 12 , Figures 14 to 21 As shown, the casting mechanism 2 is composed of an upper mold housing 201, a first electric cylinder 202, a lower shell 203, a lower mold 204, a flow divider bridge 205, an upper mold 206, a lower mold housing 207, a guide rod 208, an extrusion profile hole 209, a mold core 210, a flow divider hole 211, an extrusion profile hole 212, a guide plate 213, and a second feed port 214.

[0048] The casting mechanism 2 consists of: a lower housing 203 located on the third side of the circular frame 16; a second feed port 214 connected to the third feed port 19 on one side of the lower housing 203; an upper mold housing 201 on the top of the lower housing 203; a first electric cylinder 202 at the bottom of the lower housing 203; the output shaft of the first electric cylinder 202 fixedly connected to the bottom of the lower mold housing 207; a guide rod 208 slidably connected to the bottom plate of the lower housing 203 at the bottom of the lower mold housing 207; a channel for transporting the aluminum alloy column 22 formed between the lower mold housing 207 and the upper mold housing 201; and a lower mold 204, a flow divider bridge 205, and an upper mold 206 fixedly connected on one side of the upper mold housing 201. The flow divider bridge 205 is located at... Between the lower die 204 and the upper die 206, the upper die 206 is machined with an extrusion profile hole 212 that communicates with the outlet end of the channel. Multiple guide plates 213 are arranged along the circumferential direction on the flow bridge 205. A flow diversion hole 211 is formed between each adjacent guide plate 213. A mold core 210 is arranged on the multiple guide plates 213. An extrusion profile hole 209 is arranged on the lower die 204. The mold core 210 is located inside the extrusion profile hole 209. The space between the extrusion profile hole 209 and the mold core 210 on the lower die 204 is used to cast the aluminum alloy column 22 into an aluminum alloy motor housing 23. The spaces between the extrusion profile hole 212, the multiple flow diversion holes 211, the extrusion profile hole 209 and the mold core 210 are interconnected.

[0049] The working principle of this embodiment is as follows: (1) Aluminum alloy columns 22 are placed on the first feeding mechanism 1 and the second feeding mechanism 3 respectively, and the first feeding mechanism 1 and the second feeding mechanism 3 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 feeding port 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 drives the second helical gear 109 to rotate through meshing with the second helical gear 109. Each second helical gear 109 drives the second helical gear 109 to rotate. 9 drives the second connecting shaft 112 to rotate, and each second connecting shaft 112 drives multiple second gears 110 to rotate. Each second gear 110 drives the first gear 107 to rotate through meshing with the first gear 107. Each first gear 107 drives the spiral conveying roller 111 to rotate. The multiple spiral conveying rollers 111 located below the aluminum alloy column 22 are used to drive the aluminum alloy column 22 to rotate during linear transport. The heating box 105 uniformly heats the rotating aluminum alloy column 22. The heated aluminum alloy column 22 is discharged 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.

[0050] (2) When the aluminum alloy column 22 on the first feeding mechanism 1 is transported to the position sensor 18 near the circular frame 16, the position sensor 18 converts the position information of the aluminum alloy column 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 with the sixth gear 21. The sixth gear 21 drives the circular frame 16 to rotate. The third feed port 19 on the circular frame 16 rotates to communicate with the discharge port 113 of the feed cylinder 101. The aluminum alloy column 22 inside the feed cylinder 101 enters the feed area 17 through the discharge hole 113 and the third feed port 19 in sequence. The output shaft of the third motor 15 drives the fifth connecting shaft 24 to rotate in the opposite 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 with the sixth gear 21. The sixth gear 21 drives the circular frame 16 to rotate. The third feed port 19 of the circular frame 16 rotates to connect with the second feed port 214 of the lower housing 203. The output shaft of the second electric cylinder 14 pushes the aluminum alloy column 22 located in the feed area 17 onto the lower housing 207 through the second feed port 214.

[0051] (3) The aluminum alloy column 22 is extruded and cast to form an aluminum alloy motor housing 23: The output end of the first electric cylinder 202 drives the lower housing 207 to move upward in the vertical direction inside the lower housing 203. The bottom of the lower housing 207 is engaged with the bottom plate of the lower housing 203. At the same time, the guide rod 208 at the bottom of the lower housing 207 and the bottom plate of the lower housing 203 move upward in the vertical direction. The lower housing 207 drives the aluminum alloy column 22 to move into the channel formed by the upper housing 201 and the lower housing 207.

[0052] 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 through 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 slide groove 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 slide groove 13 at the bottom of the continuous extrusion section 401, it can carry The extrusion rod 6 moves continuously in the horizontal direction on the base 5. The extrusion rod 6 continuously pushes out the aluminum alloy column 22 in the channel formed by the upper mold shell 201 and the lower mold shell 207. The aluminum alloy column 22 passes through the extrusion profile hole 212 of the upper mold 206, the multiple diversion holes 211 of the diversion bridge 205, the space between the mold core 210 and the extrusion profile hole 209 to continuously discharge material to form an aluminum alloy motor shell 23. When the slider 9 at one end of the extrusion rod 6 is slidably connected to the slide groove 13 at the bottom of the retraction section 402, the extrusion rod 6 is retracted.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A stamping casting apparatus for an aluminum alloy motor housing, characterized in that: A first feeding mechanism (1) and a second feeding mechanism (3) for transporting aluminum alloy columns (22) are respectively provided on the base (5). A circular frame (16) is rotatably mounted 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 symmetrical about the center line of the circular frame (16). A feeding area (17) is provided on the circular frame (16). The first feeding mechanism (1) and the second feeding mechanism (3) take turns transporting the aluminum alloy columns (22) to the feeding area (17). Inside the circular frame (16), a third feed port (19) is machined on the circular frame (16) and communicates with the feed area (17). The third feed port (19) moves to communicate with the outlet ends of the first feed mechanism (1) and the second feed mechanism (3). A casting mechanism (2) is set on the base (5) on the third side of the circular frame (16). A second electric cylinder (14) is set on the base (5) to push the aluminum alloy column (22) in the feed area (17) into the casting mechanism (2). An extrusion rod (6) is set on the base (5) to continuously extrude and cast the aluminum alloy column (22) in the casting mechanism (2) to form an aluminum alloy motor housing (23). The casting mechanism (2) is as follows: a lower housing (203) is provided on the third side of the circular frame (16), a second feed port (214) is provided on one side of the lower housing (203) and is connected to the third feed port (19), an upper housing (201) is provided on the top of the lower housing (203), a first electric cylinder (202) is provided 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 housing (207), a guide rod (208) is provided at the bottom of the lower housing (207) and is slidably connected to the bottom plate of the lower housing (203) in the vertical direction, a channel for transporting the aluminum alloy column (22) is formed between the lower housing (207) and the upper housing (201), and a lower mold (204), a diversion bridge (205) and an upper mold (206) are fixedly connected on one side of the upper housing (201), and the diversion bridge (205) is provided. Located between the lower die (204) and the upper die (206), the upper die (206) is machined with an extrusion profile hole (212) that communicates with the outlet end of the channel. Multiple guide plates (213) are arranged along the circumferential direction on the flow bridge (205). A flow diversion hole (211) is formed between each adjacent guide plate (213). A mold core (210) is arranged on the multiple guide plates (213). An extrusion profile hole (209) is arranged on the lower die (204). The mold core (210) is located inside the extrusion profile hole (209). The space between the extrusion profile hole (209) on the lower die (204) and the mold core (210) is used to cast the aluminum alloy column (22) into an aluminum alloy motor housing (23). The spaces between the extrusion profile hole (212), the multiple flow diversion holes (211), the extrusion profile hole (209) and the mold core (210) are interconnected.

2. The extrusion casting apparatus for aluminum alloy motor housing according to claim 1, characterized in that: The base (5) is provided with a third motor (15) at the bottom. 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). The fifth connecting shaft (24) is provided with a fifth gear (20). The bottom of the circular frame (16) is provided with a sixth gear (21) that meshes with the fifth connecting shaft (24).

3. The extrusion casting apparatus for aluminum alloy motor housing according to claim 1, characterized in that: The base (5) is provided with a second motor (8), 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), the fourth connecting shaft (11) is provided with a fourth gear (12), the base (5) is rotatably mounted with a third connecting shaft (10), the bottom of the third connecting shaft (10) is provided with a third gear (7) that meshes with the fourth gear (12), the top of the third connecting shaft (10) is provided with a cam (4), the bottom of the cam (4) is provided with a slide groove (13), and one end of the extrusion rod (6) is provided with a slider (9) that is slidably connected to the slide groove (13).

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

5. The extrusion casting apparatus for 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 horizontal transportation of aluminum alloy column (22) is provided on the first side of the circular frame (16), a heating box (105) for heating aluminum alloy column (22) is provided on one side of the feeding track (103), a feeding cylinder (101) is provided above the heating box (105), a first feeding port (102) is machined at one end of the feeding cylinder (101) and communicates with the outlet end of the feeding track (103), and a discharge hole (113) is machined at the other end of the feeding cylinder (101) and communicates with the third feeding port (19). The aluminum alloy column (22) enters the feeding area (17) in sequence through the feeding track (103), the first feeding port (102), the inside of the feeding cylinder (101), the discharge hole (113), and the third feeding port (19).

6. The extrusion casting apparatus for aluminum alloy motor housing according to claim 5, characterized in that: The feed cylinder (101) is provided with a first motor (104) that drives the first connecting shaft (106) to rotate. The first connecting shaft (106) is rotatably connected to the feed cylinder (101). The first connecting shaft (106) is provided with a first helical gear (108) at both ends. The feed cylinder (101) is rotatably mounted with a second connecting shaft (112) on both sides. Each second connecting shaft (112) is provided with a second helical gear (109) that meshes with the first helical gear (108) at one end. Each second connecting shaft (112) is provided with a plurality of second gears (110). The feed cylinder (101) is rotatably mounted with a plurality of spiral conveying rollers (111) that drive the aluminum alloy column (22) to rotate and move the aluminum alloy column (22) in the horizontal direction on both sides. Each spiral conveying roller (111) is provided with a first gear (107) that meshes with the second gear (110) at one end.

7. The extrusion casting apparatus for aluminum alloy motor housing according to claim 1, characterized in that: A position sensor (18) for detecting the position of the aluminum alloy column (22) is provided on the outside of the feeding area (17).

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