Casting device for manufacturing motor shell

Abstract

The invention relates to the technical field of metal workpiece casting equipment, in particular to a casting device for motor shell manufacturing, which comprises a shakeout machine body and a screen, a pushing device is arranged in the shakeout machine body, and the pushing device comprises a pushing rod for pushing molding sand into screen holes of the screen and a pushing assembly for driving the pushing rod to move. The pushing rod is in sliding fit with the shakeout machine body, an extrusion device is arranged in the shakeout machine body and comprises an extrusion rod used for pushing molding sand and a driving assembly used for driving the extrusion rod to move, the pushing rod and the extrusion rod are oppositely arranged in the horizontal direction, and when the pushing rod and the extrusion rod slide in the direction close to each other, the extrusion rod is driven by the driving assembly to move. The molding sand is pushed into screen holes of a screen, and the molding sand between a push rod and an extrusion rod is extruded; the casting device for manufacturing the motor shell has the effects that the machining quality of a casting can be improved, and meanwhile the vibration efficiency of the shakeout machine is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal workpiece casting equipment, and in particular to a casting device for manufacturing a motor housing. Background Art

[0002] An electric motor, commonly known as a motor, is a power machine that uses the interaction between a magnetic field and a current-carrying conductor to convert electrical energy into mechanical energy. The main types include AC motors, DC motors, stepper motors and servo motors. The electric motor is mainly composed of a casing, a stator, a rotor and other accessories.

[0003] Casting is a metal forming process, in which the melted metal is poured into a pre-prepared mold and cooled and solidified into a component of the desired shape. Among them, the manufacture of motor housings usually adopts casting processing. Motor housing casting is a process of manufacturing the motor housing through a casting process. When the motor housing is cast, a sand shaker is required to use vibration and impact to separate the molding sand and the casting in the mold. The vibration sources of the sand shaker are divided into three categories: mechanical, electromagnetic and pneumatic.

[0004] A Chinese patent document with announcement number CN213944841U discloses a vibrating sand-falling machine that is easy to replace a screen, comprising a shell and a conveying device, a vibrating device is installed inside the shell, a nozzle is installed on the top of the shell, and a servo motor is installed on one side of the shell, an eccentric wheel is installed at the output end of the servo motor, and a belt is installed at the output end of the servo motor, the conveying device is installed at the bottom of the shell, and a support frame is installed at the bottom of the shell; the use process of the vibrating sand-falling machine that is easy to replace the screen is as follows: first, after the casting is completed, the casting is demoulded after cooling, the casting and the box body are placed on the top of the vibrating sand-falling machine, the casting and the box body are used to fit the rollers inside the vibrating device, and the servo motor is started at the same time, so that the output end of the servo motor drives the eccentric wheel to rotate, and the eccentric wheel drives the vibrating device to vibrate, the vibrating device separates the casting and the box body, and at the same time, the sand particles in the casting fall into the top of the conveying device at the bottom through the sieve.

[0005] In the above technology, when the molding sand falling on the vibrating sand-falling machine is too large, it cannot pass through the filter screen on the vibrating sand-falling machine in time, and a large amount of molding sand and the casting vibrate together on the vibrating sand-falling machine. The long-term joint vibration of the molding sand and the casting will cause the casting to be hit and the surface of the casting to be worn, thereby affecting the processing quality of the casting. At the same time, a large amount of molding sand accumulates on the vibrating sand-falling machine, which will increase the load of the equipment and reduce the vibration efficiency. Summary of the invention

[0006] The present invention provides a casting device for manufacturing motor housings, aiming to solve the technical problems in the prior art that when the molding sand falling on a vibrating sand-falling machine is too large, it cannot pass through the filter screen on the vibrating sand-falling machine in time, a large amount of molding sand and the casting vibrate together on the vibrating sand-falling machine, and the long-term joint vibration of the molding sand and the casting will cause the casting to be hit and the surface of the casting to be worn, thereby affecting the processing quality of the casting; at the same time, a large amount of molding sand accumulates on the vibrating sand-falling machine, which will increase the load of the equipment and reduce the vibration efficiency.

[0007] A casting device for manufacturing a motor housing of the present invention comprises a sand-falling machine body and a screen arranged on the sand-falling machine body, a pushing device is arranged in the sand-falling machine body, the pushing device comprises a pushing rod for pushing the molding sand into the sieve holes of the sieve and a pushing assembly for driving the pushing rod to move, the pushing rod is slidably fitted in the sand-falling machine body, an extrusion device is arranged in the sand-falling machine body, the extrusion device comprises an extrusion rod for pushing the molding sand and a driving assembly for driving the extrusion rod to move, the pushing rod and the extrusion rod are arranged opposite to each other in the horizontal direction, and when the pushing rod and the extrusion rod slide in a direction approaching each other, the molding sand is pushed into the sieve holes of the sieve, and the molding sand between the pushing rod and the extrusion rod is extruded.

[0008] Beneficial effect: through the setting of the pushing device and the extruding device, when the molding sand on the screen needs to be processed, the pushing component can drive the pushing rod to slide, and the driving component can drive the extruding rod to slide. When the pushing rod and the extruding rod slide in the direction of approaching each other, the molding sand can be pushed into the screen holes of the screen, thereby improving the filtering efficiency of the screen for the molding sand, and squeezing the large pieces of molding sand between the pushing rod and the extruding rod, reducing the phenomenon of molding sand accumulation, which can improve the processing quality of castings and at the same time improve the vibration efficiency of the sand falling machine.

[0009] Preferably, the pushing rods and the squeezing rods are arranged in multiple groups along the length direction of the sand shaker body.

[0010] Beneficial effect: By arranging the push rod and the extrusion rod into multiple groups, the adjustment stroke of the push rod and the extrusion rod can be shortened compared with a single group of push rods and the extrusion rod, thereby improving the efficiency of the reciprocating movement of the push rod and the extrusion rod, and further improving the filtering efficiency of the screen on the molding sand.

[0011] Preferably, the push rods and the squeeze rods are arranged in multiple groups along the width direction of the sand shaker body, and a fixing rod is arranged between two adjacent groups of the push rods along the width direction of the sand shaker body, and the push rods and the squeeze rods are slidably matched with the fixing rods.

[0012] Beneficial effect: By setting the fixed rod, the space above the screen can be divided into a plurality of chambers for processing the molding sand, and the processing efficiency of the molding sand can be improved when the molding sand is processed.

[0013] Preferably, the pushing assembly includes a slider slidably fitted in the sand shaker body and a driving member for pushing the slider to slide, and the slider is connected to the pushing rod.

[0014] Preferably, the push rod and the extrusion rod are both provided with lifting holes, and the push rod and the extrusion rod are both provided with pushing devices, the pushing devices include a pushing rod for pushing the molding sand and the casting and a pushing mechanism for driving the pushing rod to move, and the pushing rod is fitted in the lifting hole along the vertical sliding direction.

[0015] Beneficial effect: Through the setting of the jacking device, the jacking mechanism can push the jacking rod to move, and the jacking rod continuously moves up and down, which can crush the large pieces of molding sand above the pushing rod and the extrusion rod, thereby improving the processing efficiency of large pieces of molding sand, and at the same time can lift the casting to enhance the vibration effect on the casting.

[0016] Preferably, the pushing mechanism comprises a lifting assembly for driving the pushing rod to rise and fall and a pushing assembly for driving the lifting assembly to move, and the lifting assembly and the pushing assembly are both arranged in the sand falling machine body.

[0017] Beneficial effect: the lifting assembly is driven to move by the push assembly, and the lifting assembly can drive the push rod to move up and down, thereby realizing convenient adjustment of the push rod, and the large pieces of molding sand are crushed by the push rod.

[0018] Preferably, the lifting assembly includes a cam for driving the push rod to rise and fall, and a rotating rod rotatably matched in the push rod, and the cam is connected to the rotating rod.

[0019] Preferably, the pushing assembly includes a gear mounted on the rotating rod and a rack for driving the gear to rotate, and the rack is meshed with the gear.

[0020] Preferably, the rack in the pushing rod is used to drive the gear in the extruding rod to rotate, and the rack in the extruding rod is used to drive the gear in the pushing rod to rotate.

[0021] Beneficial effect: When each set of push rods and extrusion rods slide relative to each other, the corresponding racks can be driven to slide, and then the gears can be driven to rotate, thereby realizing the lifting movement of the push rods and the push rods inside the extrusion rods.

[0022] Preferably, a linkage device is provided in the pushing rod and the squeezing rod, and the linkage device includes a linkage frame for driving the multiple push rods to rise and fall and an elastic member for driving the linkage frame to descend, one end of the elastic member is connected to the linkage frame, and the other end is connected to the pushing rod.

[0023] Beneficial effect: through the setting of the linkage device, when the cam lifts the linkage frame, multiple push rods can be lifted and lowered at the same time, and through the setting of the elastic part, when the cam no longer lifts the linkage frame, the linkage frame can be quickly lowered, thereby achieving the rapid return of multiple push rods.

[0024] The beneficial effects of the present invention are: 1. In the present invention, by setting the pushing device and the extruding device, when the molding sand on the screen needs to be processed, the pushing component can drive the pushing rod to slide, and the driving component can drive the extruding rod to slide. When the pushing rod and the extruding rod slide in a direction approaching each other, the molding sand can be pushed into the screen holes of the screen, thereby improving the filtering efficiency of the screen for the molding sand, and squeezing the large pieces of molding sand between the pushing rod and the extruding rod, reducing the phenomenon of molding sand accumulation, which can improve the processing quality of the casting and improve the vibration efficiency of the sand falling machine.

[0025] 2. In the present invention, through the setting of the jacking device, the jacking mechanism can push the jacking rod to move, and the jacking rod continuously performs lifting and lowering movements, which can crush the large pieces of molding sand above the pushing rod and the extrusion rod, thereby improving the processing efficiency of the large pieces of molding sand, and at the same time can lift the casting to enhance the vibration effect on the casting.

[0026] 3. In the present invention, by setting the linkage device, when the cam lifts the linkage frame, multiple push rods can be lifted and lowered at the same time, and by setting the elastic member, when the cam no longer lifts the linkage frame, the linkage frame can be quickly lowered, thereby achieving the rapid return of multiple push rods. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a structural schematic diagram showing the positional relationship between the pushing device and the extruding device of the present invention.

[0029] Figure 3 It is a structural schematic diagram showing the connection relationship between the push rod and the screen mesh of the present invention.

[0030] Figure 4 It is a partial cross-sectional view of the present invention.

[0031] Figure 5 yes Figure 4 A partial enlarged view of point A in the middle.

[0032] Figure 6 It is a partial cross-sectional view showing the connection relationship between the pushing device and the linkage device of the present invention.

[0033] Reference numerals: 1. Sand falling machine body; 2. Screen; 3. Pushing device; 31. Pushing rod; 311. Lifting hole; 32. Pushing assembly; 321. Sliding block; 322. Driving member; 4. Extruding device; 41. Extruding rod; 42. Driving assembly; 5. Fixed rod; 6. Pushing device; 61. Pushing rod; 62. Lifting assembly; 621. Cam; 622. Rotating rod; 63. Pushing assembly; 631. Gear; 632. Rack; 7. Linkage device; 71. Linkage frame; 72. Elastic member. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] Reference Figure 1-Figure 6 The present invention provides a casting device for manufacturing a motor housing, comprising a sand-dropping machine body 1 and a screen 2 fixedly arranged on the sand-dropping machine body 1. The sand-dropping machine body 1 is provided with a vibration mechanism, a pushing device 3 and an extrusion device 4. The vibration mechanism is used to drive the sand-dropping machine body 1 to vibrate. The pushing device 3 and the extrusion device 4 are used to push the molding sand that falls on the screen 2 to the screen holes of the screen 2, and to squeeze and crush the large molding sand. When it is necessary to separate the casting from the molding sand, the vibration mechanism is started to drive the sand-dropping machine body 1 to vibrate, and the molding sand and the casting that fall on the screen 2 are driven to vibrate, so that the molding sand is shaken off the casting. At the same time, the pushing device 3 and the extrusion device 4 are started, and the pushing device 3 and the extrusion device 4 push the molding sand to the screen holes of the screen 2, and at the same time, the large molding sand is squeezed and crushed, so that the fallen molding sand can fall from the screen holes of the screen 2 in time and be discharged from the sand-dropping machine body 1.

[0036] Among them, refer to Figure 2-Figure 4 The pushing device 3 includes a pushing rod 31 for pushing the molding sand into the sieve holes of the screen 2 and a pushing assembly 32 for driving the pushing rod 31 to move. The pushing rod 31 is set to an "L"-shaped structure. Multiple groups of pushing rods 31 are arranged along the length and width directions of the sand-falling machine body 1. The multiple pushing rods 31 along the length direction of the sand-falling machine body 1 are fixedly connected, and the pushing rod 31 is slidably matched with the sand-falling machine body 1 along the length direction of the sand-falling machine body 1; the pushing assembly 32 includes a slider 321 slidably matched in the sand-falling machine body 1 and a driving member 322 for pushing the slider 321 to slide. The slider 321 is a T-block, and a groove for the slider 321 to slide is provided on the screen 2. The slider 321 is fixedly connected to the pushing rod 31 at one end of the sand-falling machine body 1 in the length direction. The driving member 322 directly adopts a hydraulic cylinder, and one end of the driving member 322 is fixedly connected to the sand-falling machine body 1, and the other end is fixedly connected to the slider 321.

[0037] Reference Figure 2-Figure 4 The extrusion device 4 includes an extrusion rod 41 for pushing the molding sand and a driving assembly 42 for driving the extrusion rod 41 to move. The extrusion rod 41 is set as an "L"-shaped structure. The extrusion rod 41 slides along the length direction of the sand-falling machine body 1 and is matched with the sand-falling machine body 1. Multiple groups of extrusion rods 41 are arranged along the length direction and width direction of the sand-falling machine body 1. The multiple extrusion rods 41 along the length direction of the sand-falling machine body 1 are fixedly connected. The pushing rod 31 and the extrusion rod 41 are arranged relatively to each other along the length direction of the sand-falling machine body 1. The pushing rod 31 and the extrusion rod 41 are arranged in sequence along the length direction of the sand-falling machine body 1, and the pushing rod 31 and the extrusion rod 41 make relative sliding movement.

[0038] Reference Figure 2-Figure 4 The structure of the driving assembly 42 is the same as that of the pushing assembly 32. The driving member 322 of the driving assembly 42 is fixedly connected to the slider 321 on the extrusion rod 41, and the driving member 322 of the driving assembly 42 is used to drive the multiple extrusion rods 41 to slide and adjust; starting the driving member 322 of the driving assembly 42 and the driving member 322 of the pushing assembly 32 can respectively drive the extrusion rod 41 and the pushing rod 31 to slide in the direction of approaching or moving away from each other. When the extrusion rod 41 and the pushing rod 31 slide in the direction of approaching each other, the molding sand in the chamber formed between the extrusion rod 41 and the pushing rod 31 can be pushed into the sieve hole of the screen 2, and the molding sand between the pushing rod 31 and the extrusion rod 41 can be squeezed; when the extrusion rod 41 and the pushing rod 31 slide in the direction of moving away from each other, the extrusion rod 41 and the pushing rod 31 can be reset.

[0039] Reference Figure 2-Figure 4 A fixing rod 5 is provided between two adjacent groups of pushing rods 31 along the width direction of the sand-falling machine body 1 . The fixing rod 5 is fixedly connected to the sand-falling machine body 1 , and the pushing rod 31 and the squeezing rod 41 are slidably matched with the fixing rod 5 .

[0040] Reference Figure 4-Figure 6 A lifting hole 311 is provided on the push rod 31 and the extrusion rod 41, and a pushing device 6 is provided on the push rod 31 and the extrusion rod 41. The pushing device 6 includes a pushing rod 61 for pushing the molding sand and the casting and a pushing mechanism for driving the pushing rod 61 to move. The pushing rod 61 is vertically slidably fitted in the lifting hole 311, and a plurality of pushing rods 61 are arranged on the push rod 31 at intervals along the width direction of the sand-falling machine body 1; the pushing mechanism includes a lifting assembly 62 for driving the pushing rod 61 to rise and fall and a pushing assembly 63 for driving the lifting assembly 62 to move, and the lifting assembly 62 and the pushing assembly 63 are both arranged in the sand-falling machine body 1.

[0041] Among them, refer to Figure 4-Figure 6The lifting assembly 62 includes a cam 621 for driving the push rod 61 to rise and fall, and a rotating rod 622 that rotates and cooperates with the push rod 31, and the cam 621 is fixedly connected to the rotating rod 622; the push assembly 63 includes a gear 631 fixedly installed on the rotating rod 622 and a rack 632 for driving the gear 631 to rotate, the rack 632 is meshed with the gear 631, the push rod 31 and the extrusion rod 41 are both fixedly connected to the rack 632, and the rack 632 in the push rod 31 is used to drive the gear 631 in the extrusion rod 41 to rotate, and the rack 632 in the extrusion rod 41 is used to drive the gear 631 in the push rod 31 to rotate.

[0042] Reference Figure 4-Figure 6 A linkage device 7 is provided in both the pushing rod 31 and the squeezing rod 41. The linkage device 7 includes a linkage frame 71 for driving the multiple pushing rods 61 to rise and fall and an elastic member 72 for driving the linkage frame 71 to descend. The linkage frame 71 is fixedly connected to the multiple pushing rods 61. The elastic member 72 directly adopts a spring. One end of the elastic member 72 is fixedly connected to the linkage frame 71, and the other end is fixedly connected to the pushing rod 31.

[0043] The implementation principle of the casting device for manufacturing a motor housing of the present invention is as follows: when it is necessary to separate the casting from the molding sand, the vibration mechanism is started to drive the sand shakeout machine body 1 to vibrate, and drive the molding sand and the casting that fall onto the screen 2 to vibrate, so that the molding sand is shaken off the casting, and part of the molding sand can fall through the sieve holes of the screen 2; Then, the driving member 322 of the driving assembly 42 and the driving member 322 of the pushing assembly 32 are started, which can respectively drive the extrusion rod 41 and the pushing rod 31 to slide in the direction of approaching each other. During the sliding process, the extrusion rod 41 and the pushing rod 31 can push the molding sand in the chamber formed between the extrusion rod 41 and the pushing rod 31 into the sieve holes of the screen 2, so that the molding sand can quickly fall from the sieve holes of the screen 2; When the extrusion rod 41 and the push rod 31 slide in the direction of approaching each other, the rack 632 is driven to slide, and the rack 632 on the extrusion rod 41 and the rack 632 on the push rod 31 slide in the direction of approaching each other. When the rack 632 slides, it can drive the gear 631 to rotate. When the gear 631 rotates, it drives the rotating rod 622 to rotate, and then drives the cam 621 to rotate. During the rotation of the cam 621, the linkage frame 71 is pushed, and when the elastic member 72 is stretched, the push rod 61 can be driven to lift, and the large pieces of molding sand above the push rod 31 and the extrusion rod 41 are crushed, and the casting is lifted at the same time. When the cam 621 no longer pushes the linkage frame 71, the elastic member 72 releases the elastic restoring force, drives the linkage frame 71 to descend, drives the push rod 61 to descend, and resets; When the extrusion rod 41 and the push rod 31 slide in the direction of approaching each other, the large pieces of molding sand between the extrusion rod 41 and the push rod 31 can be squeezed and crushed, and the crushed molding sand can fall from the sieve holes of the screen 2. When the large pieces of molding sand are crushed, the driving member 322 of the driving assembly 42 drives the extrusion rod 41, and the driving member 322 of the pushing assembly 32 drives the push rod 31 to slide in the direction of moving away from each other, and the push rod 31 and the extrusion rod 41 are reset. After multiple cycles in this way, the molding sand can be quickly processed, and the fallen molding sand can fall from the sieve holes of the screen 2 in time and be discharged from the sand falling machine body 1, completing the separation operation between the molding sand and the casting.

[0044] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0045] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A casting device for manufacturing a motor housing, comprising a shakeout machine body (1) and a screen (2) arranged on the shakeout machine body (1), characterized in that: The shakeout machine body (1) is provided with a pushing device (3), the pushing device (3) comprising a pushing rod (31) for pushing the molding sand into the sieve holes of the screen (2) and a pushing assembly (32) for driving the pushing rod (31) to move. The pushing rod (31) is slidably matched with the shakeout machine body (1). The shakeout machine body (1) is provided with an extrusion device (4), the extrusion device (4) comprising an extrusion rod (41) for pushing the molding sand and a driving assembly (42) for driving the extrusion rod (41) to move. The pushing rod (31) and the extrusion rod (41) are arranged opposite to each other in a horizontal direction. When the pushing rod (31) and the extrusion rod (41) slide in a direction approaching each other, the molding sand is pushed into the sieve holes of the screen (2), and the molding sand between the pushing rod (31) and the extrusion rod (41) is extruded.

2. A casting device for manufacturing a motor housing according to claim 1, characterized in that: The pushing rods (31) and the squeezing rods (41) are arranged in multiple groups along the length direction of the shakeout machine body (1).

3. A casting device for manufacturing a motor housing according to claim 1, characterized in that: The push rods (31) and the squeeze rods (41) are arranged in a plurality of groups along the width direction of the sand shaker body (1), and a fixing rod (5) is arranged between two adjacent groups of the push rods (31) along the width direction of the sand shaker body (1), and the push rods (31) and the squeeze rods (41) are slidably matched with the fixing rods (5).

4. A casting device for manufacturing a motor housing according to claim 3, characterized in that: The pushing assembly (32) comprises a sliding block (321) slidably fitted in the sand shaker body (1) and a driving member (322) for pushing the sliding block (321) to slide; the sliding block (321) is connected to the pushing rod (31).

5. A casting device for manufacturing a motor housing according to claim 1, characterized in that: The push rod (31) and the extrusion rod (41) are both provided with a lifting hole (311), and the push rod (31) and the extrusion rod (41) are both provided with a pushing device (6), the pushing device (6) comprising a pushing rod (61) for pushing the molding sand and the casting and a pushing mechanism for driving the pushing rod (61) to move, and the pushing rod (61) is slidably matched in the lifting hole (311) along the vertical direction.

6. A casting device for manufacturing a motor housing according to claim 5, characterized in that: The pushing mechanism comprises a lifting assembly (62) for driving the pushing rod (61) to move up and down, and a pushing assembly (63) for driving the lifting assembly (62) to move. The lifting assembly (62) and the pushing assembly (63) are both arranged in the sand shaker body (1).

7. A casting device for manufacturing a motor housing according to claim 6, characterized in that: The lifting assembly (62) comprises a cam (621) for driving the push rod (61) to lift and lower, and a rotating rod (622) rotatably matched in the push rod (31), wherein the cam (621) is connected to the rotating rod (622).

8. A casting device for manufacturing a motor housing according to claim 7, characterized in that: The pushing assembly (63) comprises a gear (631) mounted on the rotating rod (622) and a rack (632) used to drive the gear (631) to rotate, and the rack (632) is meshed with the gear (631).

9. A casting device for manufacturing a motor housing according to claim 8, characterized in that: The rack (632) in the pushing rod (31) is used to drive the gear (631) in the squeezing rod (41) to rotate, and the rack (632) in the squeezing rod (41) is used to drive the gear (631) in the pushing rod (31) to rotate.

10. A casting device for manufacturing a motor housing according to claim 5, characterized in that: The push rod (31) and the squeeze rod (41) are both provided with a linkage device (7), the linkage device (7) comprising a linkage frame (71) for driving the plurality of push rods (61) to rise and fall, and an elastic member (72) for driving the linkage frame (71) to descend, one end of the elastic member (72) being connected to the linkage frame (71), and the other end being connected to the push rod (31).

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