Shell stamping equipment for brushless motor production

Abstract

The invention relates to the field of stamping equipment, in particular to shell stamping equipment for brushless motor production, which comprises a turntable, a stamping unit and the like, the turntable is connected with a punching unit; the stamping unit is used for pressing motor shell raw materials into the bottom die to form a shell stamping part. A movable cylindrical die structure is adopted in the bottom die, so that the usage amount of dies is remarkably reduced, local precision stamping machining of a shell stamping part is achieved, the adjustment workload of all the dies in the follow-up die maintenance process is reduced, time and labor cost are greatly saved, meanwhile, through the four-step rotary stamping process, the production efficiency is improved, and the production cost is reduced. The problem that a shell stamping part rebounds due to a traditional one-time forming process is effectively solved, the size precision is ensured, and in addition, the influence of residual chippings on follow-up machining can be eliminated.

Description

Technical Field

[0001] The present invention relates to the field of stamping equipment, in particular to a housing stamping equipment for producing a brushless motor. Background Art

[0002] In the motor manufacturing process, the stamping process of the motor housing is crucial, especially for the brushless motor housing, which has precise structural characteristics and special material performance requirements. It puts forward more stringent standards for stamping processing accuracy and process control. In order to meet the technical requirements of the brushless motor housing in terms of dimensional accuracy, structural strength, production efficiency, etc., while taking into account special needs such as lightweight and heat dissipation performance, it is necessary to develop special high-precision stamping forming equipment.

[0003] Traditional production processes usually adopt an assembly line operation mode, in which raw materials are continuously transferred and stamped and stretched in steps through multiple molds. This process not only requires the configuration of a large number of dedicated molds for different processes, resulting in a large equipment size and increased floor space, but also requires complex synchronous adjustments due to the coordination and cooperation requirements between the molds. In the actual production process, it is very easy to cause material jamming failures due to mold matching deviations, causing the production line to stagnate, which not only affects production efficiency, but also greatly increases the difficulty and workload of equipment maintenance. In addition, the collaborative operation of multiple molds also brings the risk of cumulative errors, affecting the dimensional consistency and molding quality of the final product. Summary of the Invention

[0004] To overcome the shortcomings of traditional assembly line stamping processes, which utilize multiple molds and operate in a step-by-step manner, resulting in bulky equipment, difficult mold coordination, prone to material jamming and downtime, complex maintenance, and cumulative errors, which seriously impact production efficiency and product quality, the present invention provides housing stamping equipment for brushless motor production.

[0005] Technical solution: A shell stamping equipment for brushless motor production, including a double-layer frame; the double-layer frame is composed of two base plates, which are connected by several vertical rods; it also includes a bottom mold, a bracket, a servo motor, a rotating shaft, a turntable, a stamping unit, a first electric actuator and a cylinder mold; the upper base plate of the double-layer frame is detachably connected to the bottom mold; the double-layer frame is fixed with a bracket; the bracket is installed with a servo motor; the bracket is rotatably connected to the rotating shaft; the output shaft of the servo motor is connected to the rotating shaft through a pulley transmission; the front of the rotating shaft is fixed with a turntable; the turntable is connected with a stamping unit; the stamping unit is used to press the motor shell raw material into the bottom mold to form a shell stamping part; several first electric actuators are installed at the bottom of the bottom mold; all the telescopic parts of the first electric actuators are fixed with the cylinder mold; the cylinder mold is slidably connected to the bottom mold; several through holes are opened on the bottom mold; the upper base plate of the double-layer frame is opened with a circular hole, and the circular hole is connected to all the through holes of the bottom mold.

[0006] Further explanation: the stamping unit includes a support rod, a second electric actuator, a first die, a second die, a third die and a fourth die; the turntable is connected to four support rods; the turntable is installed with four second electric actuators; each second electric actuator is fixed to a support rod; the four second electric actuator telescopic parts are respectively detachably connected to the first die, the second die, the third die and the fourth die; the first die is a shaping die; the second die is a punching die; the third die is a concave die; and the fourth die is a convex die.

[0007] It is further explained that the second pressing die is composed of a flat die and a punching rod, and the punching rod is used to punch holes in the shell stamping part.

[0008] It is further explained that the third die is composed of positioning rods and sunken grooves, and the number of the positioning rods is consistent with the number of heat dissipation holes of the shell stamping part.

[0009] It is further explained that the fourth die is composed of a positioning rod and a punching cone head, and the length of the positioning rod is greater than the length of the punching rod.

[0010] Further description: an annular step is provided on the bottom mold.

[0011] Further explanation: an annular chamfer is provided at the corner of the bottom mold step.

[0012] Further description, it also includes a cooler, a first conduit, a second conduit, a cylinder cover, an inner cylinder, a partition, a cross plate, a third conduit and a fourth conduit; the bracket is equipped with a cooler; the cooler is connected to the first conduit; the cooler is connected to the second conduit on the side away from the first conduit; a guide groove is opened in the bottom mold; a partition is provided in the guide groove, and the guide groove is a circular ring with a notch; the first conduit is connected to the guide groove; the bracket is fixed with the cylinder cover; the cylinder cover is rotatably connected to the rotating shaft; the front of the cylinder cover is fixed with the inner cylinder; the rotating shaft is a hollow rod; the inner cylinder is rotatably connected to the rotating shaft; the inner cylinder is fixed with a partition; the partition divides the inner cylinder into an upper The lower two spaces; a water storage chamber is opened in the turntable; the turntable is connected to the rotating shaft; a cross plate is fixed in the turntable; the cylinder cover is connected to the third conduit; the third conduit is connected to the guide groove; the partition in the guide groove is located between the third conduit and the first conduit; the cross plate divides the water storage chamber of the turntable into four sector-shaped spaces; the support rod is a hollow rod; the four sector-shaped spaces of the turntable are each connected to a support rod; each support rod is connected to a fourth conduit; a water storage chamber is opened in the first die, the second die, the third die and the fourth die; the four fourth conduits are respectively connected to the first die, the second die, the third die and the fourth die.

[0013] To further illustrate, the separator has a V-shaped groove on the top and bottom.

[0014] It is further explained that the contact surface between the inner cylinder and the rotating shaft is coated with a lubricating and wear-resistant coating.

[0015] Compared with the prior art, the present invention has the following advantages: 1. By adopting a movable cylinder mold structure in the bottom mold setting, the mold usage is significantly reduced, and local precision stamping processing of the shell stamping parts is realized. It not only reduces the adjustment workload of each mold during the subsequent mold maintenance process, greatly saves time and labor costs, but also effectively avoids the rebound problem of the shell stamping parts caused by the traditional one-step molding process through the four-step rotary stamping process, ensuring dimensional accuracy. In addition, it can also eliminate the influence of residual debris on subsequent processing.

[0016] 2. The fixed shell stamping parts and rotary die-changing operation mode are adopted, which eliminates the step of transferring workpieces between dies in traditional assembly line operations, fundamentally solves the problem of material jamming caused by workpiece movement, and ensures the continuous and stable progress of stamping work.

[0017] 3. Through the natural flow of circulating fluid between the molds, a heat dissipation system without additional power drive is realized, which can effectively control the mold temperature, ensure the stamping accuracy under long-term operation of the equipment, and extend the service life of the equipment. At the same time, since no additional mechanical heat dissipation device is required, the influence of equipment operation vibration on stamping and stretching accuracy is avoided, further improving the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the housing stamping equipment for producing a brushless motor according to the present invention from a first viewing angle; Figure 2 A schematic diagram of the three-dimensional structure of the housing stamping equipment for producing a brushless motor according to the present invention from a second viewing angle; Figure 3 A cross-sectional view of a housing stamping of the present invention; Figure 4 is a cross-sectional view of the bottom mold of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the punching unit of the present invention from a first viewing angle; Figure 6 This is a schematic diagram of the three-dimensional structure of the punching unit of the present invention from a first viewing angle; Figure 7 Schematic diagram of the internal structure of the rotating shaft and the rotating disk of the present invention; Figure 8 This is an exploded view of the rotating shaft and turntable of the present invention.

[0019] In the above drawings: 111-shell stamping part, 1-double-layer frame, 2-bottom mold, 3-bracket, 4-servo motor, 5-rotating shaft, 6-turntable, 7-support rod, 8-second electric actuator, 9-first die, 10-second die, 11-third die, 12-fourth die, 13-first electric actuator, 14-cylinder mold, 15-cooler, 16-first conduit, 17-second conduit, 18-cylinder cover, 19-inner cylinder, 20-partition, 21-cross plate, 22-third conduit, 23-fourth conduit, 201-guide groove. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0021] The first embodiment: a housing stamping device for brushless motor production, according to Figures 1-6 As shown, it includes a double-layer frame 1; the double-layer frame 1 is composed of two base plates, and the two base plates are connected by a number of vertical rods; It also includes a bottom mold 2, a bracket 3, a servo motor 4, a rotating shaft 5, a turntable 6, a stamping unit, a first electric actuator 13 and a cylinder mold 14; the upper base plate of the double-layer frame 1 is detachably connected to the bottom mold 2; the double-layer frame 1 is fixedly connected to the bracket 3; the bracket 3 is located behind the bottom mold 2; the servo motor 4 is installed on the upper part of the bracket 3; the upper part of the bracket 3 is rotatably connected to the rotating shaft 5; the output shaft of the servo motor 4 is connected to the rotating shaft 5 through a pulley transmission; the front part of the rotating shaft 5 is fixedly connected to the turntable 6; the turntable 6 is connected to the stamping unit; three first electric actuators 13 distributed in a circular array are installed at the bottom of the bottom mold 2; the first electric actuator 13 is an electric push rod; the telescopic parts of all the first electric actuators 13 are commonly fixedly connected to the cylinder mold 14; the cylinder mold 14 is slidably connected to the bottom mold 2; a number of through holes are opened on the bottom mold 2; the upper base plate of the double-layer frame 1 is opened with a circular hole, and the circular hole is connected to all the through holes of the bottom mold 2.

[0022] The stamping unit includes a support rod 7, a second electric actuator 8, a first die 9, a second die 10, a third die 11 and a fourth die 12; the turntable 6 is connected to four support rods 7 distributed in a circular array; the turntable 6 is installed with four second electric actuators 8 distributed in a circular array; the second electric actuators 8 are hydraulic rods; each second electric actuator 8 is fixed to a support rod 7; the four telescopic parts of the second electric actuators 8 are detachably connected to the first die 9, the second die 10, the third die 11 and the fourth die 12. The first die 9 is a shaping die, used for pressing the shell raw material into the shell stamping part 111 shape; the second die 10 is a punching die, used for punching out heat dissipation holes on the stamped shell stamping part 111 shape; the third die 11 is a concave die, used for cooperating with the cylinder die 14 to punch out an upper convex shape on the shell stamping part 111; the fourth die 12 is a convex die, used for cooperating with the cylinder die 14 to punch out a lower concave shape on the basis of the upper convex shape punched out of the shell stamping part 111.

[0023] The second pressing die 10 is composed of a flat die and a punching rod, and the punching rod is used to punch holes in the housing stamping part 111 .

[0024] The third die 11 is composed of positioning rods and sunken grooves. The number of the positioning rods is consistent with the number of heat dissipation holes of the shell stamping part 111. The positioning rods are used to position the shell stamping part 111 and push the debris generated by stamping out of the through hole of the bottom die 2.

[0025] The fourth die 12 is composed of a positioning rod and a punching cone head. The length of the positioning rod is greater than that of the punching rod. The positioning rod is used to push out debris in the through hole of the bottom die 2 and reduce the warping deformation of the shell stamping part 111.

[0026] An annular step is provided on the bottom mold 2 for positioning the raw material of the motor housing.

[0027] An annular chamfer is provided at the step corner of the bottom mold 2 to prevent the motor housing material from being scratched when being pressed into the bottom mold 2.

[0028] The working steps of the above embodiment are: First, fix this equipment on the workbench. Here, the raw material of the motor casing is explained by taking the aluminum alloy disc as an example. First, control the external manipulator to transfer the raw material of the motor casing to the annular step of the bottom mold 2. The aluminum alloy disc is slightly smaller than the annular step. After the aluminum alloy disc is placed on the annular step, the positioning and limiting of the aluminum alloy disc are completed to avoid displacement of the aluminum alloy disc during the stamping process, resulting in a decrease in stamping quality. Then control the second electric actuator 8 connected to the first die 9 to extend, and synchronously drive the first die 9 to move downward. The first die 9 contacts the aluminum alloy disc and presses the aluminum alloy disc into the groove of the bottom die 2. The first die 9 is a flat die that completes the initial plasticity of the motor casing.

[0029] Then the second electric actuator 8 is controlled to contract, so that the first die 9 is withdrawn from the bottom die 2, and then the servo motor 4 is controlled to start, and the output shaft of the servo motor 4 rotates, synchronously driving the rotation of the shaft 5 and the corresponding parts thereon, which rotates clockwise from the front to the back, until the second die 10 rotates to the top of the bottom die 2, and then the second electric actuator 8 connected to the second die 10 is controlled to extend, so that the second die 10 moves downward. The second die 10 consists of a flat die and a punching rod. The punching rod of the second die 10 is connected to the outer shell of the bottom die 2. The stamping part 111 contacts and penetrates, thereby punching out a number of heat dissipation holes in the shell stamping part 111, and the flat mold of the second die 10 contacts the shell stamping part 111, and the shell stamping part 111 is stamped again to avoid rebound of the shell stamping part 111 and to avoid warping and deformation of the shell stamping part 111 when punching the heat dissipation holes in the shell stamping part 111, thereby ensuring the overall geometric accuracy of the shell stamping part 111, and then controlling the second electric actuator 8 to contract so that the second die 10 withdraws from the bottom die 2.

[0030] Then control the servo motor 4 output shaft to continue to rotate until the third die 11 reaches the top of the bottom die 2, control the corresponding second electric actuator 8 to extend, so that the third die 11 moves downward, and the positioning rod on the third die 11 is inserted into the punching hole of the shell stamping part 111 and the through hole of the bottom die 2 in turn. The third die 11 contacts the shell stamping part 111 and ejects the debris retained in the through hole of the bottom die 2. A collection box is placed on the lower base plate of the double-layer frame 1 to collect the debris ejected from the through hole of the bottom die 2. For punching the thin-walled shell stamping part 111, it is only necessary to set a shorter punching rod on the second die 10. After the punching rod penetrates the shell stamping part 111, the flat die of the second die 10 is quickly pressed on the shell stamping part 111 to avoid In order to avoid deformation of the shell stamping part 111 due to punching, debris still remains in the through hole of the bottom die 2 after the shell stamping part 111 is punched. The positioning rod of the third die 11 can just push out the debris to avoid the through hole of the bottom die 2 being blocked. The shell stamping part 111 is clamped by the bottom die 2 and the third die 11. At this time, the shell stamping part 111 is locally stamped and shaped, and all the first electric actuators 13 are controlled to extend and synchronously drive the cylinder die 14 to move upward so that the upper part of the cylinder die 14 extends into the bottom die 2. The cylinder die 14 pushes the middle part of the shell stamping part 111 upward, and the middle part of the shell stamping part 111 is stamped and stretched, and then the corresponding second electric actuator 8 is controlled to contract so that the third die 11 withdraws from the bottom die 2.

[0031] Then the servo motor 4 is controlled to output a shaft to rotate until the fourth die 12 reaches above the bottom die 2, and the corresponding second electric actuator 8 is controlled to extend so that the fourth die 12 moves downward and is pressed into the bottom die 2. The positioning rod of the fourth die 12 is inserted into the punching hole of the shell stamping part 111 and the through hole of the bottom die 2. At this time, the stamping cone head of the fourth die 12 first performs stamping and stretching deformation on the raised part in the middle of the shell stamping part 111, and then the fourth die 12 punches out a circular hole in the middle deformed area. Finally, the fourth die 12 is pressed on the shell stamping part 111 to prevent the raised part in the middle of the bottom die 2 from rebounding after being stamped, wherein the stamping debris enters the cylinder die 14, and then the second electric actuator 8 is controlled to contract so that the fourth die 12 withdraws from the bottom die 2.

[0032] At this point, the shell stamping part 111 is formed into place through four steps, and then all the first electric actuators 13 are controlled to start and continue to shrink, synchronously driving the cylinder mold 14 to move upward, and the cylinder mold 14 pushes the shell stamping part 111 upward to avoid the shell stamping part 111 being tightly attached to the bottom mold 2 during the stamping process, resulting in trouble in the subsequent shell stamping part 111 being withdrawn. Finally, the shell stamping part 111 is sucked by an external manipulator, and then the shell stamping part 111 is pulled out from the bottom mold 2, and then the next shell stamping part 111 is precisely processed. In summary, by adopting a movable cylinder mold 14 structure in the bottom mold 2 setting, the mold is significantly reduced. The usage amount is reduced to realize the local precision stamping processing of the shell stamping part 111, which not only reduces the adjustment workload of each mold during the subsequent mold maintenance process, greatly saves time and labor costs, but also effectively avoids the rebound problem of the shell stamping part 111 caused by the traditional one-step forming process through the four-step rotary stamping process, ensuring dimensional accuracy. In addition, it can also eliminate the influence of residual debris on subsequent processing, and adopts the operation method of fixing the shell stamping part 111 and rotating the mold, which eliminates the step of transferring the workpiece between the molds in the traditional assembly line operation, fundamentally solves the problem of material jamming caused by the movement of the workpiece, and ensures the continuous and stable progress of the stamping work.

[0033] Second embodiment: Based on the first embodiment, Figure 2 、 Figure 7 and Figure 8As shown, it also includes a cooler 15, a first conduit 16, a second conduit 17, a cylinder cover 18, an inner cylinder 19, a partition 20, a cross plate 21, a third conduit 22 and a fourth conduit 23; the cooler 15 is installed at the rear of the bracket 3; the cooler 15 is connected to the first conduit 16; the side of the cooler 15 away from the first conduit 16 is connected to the second conduit 17; a guide groove 201 is opened in the bottom mold 2; a partition is provided in the guide groove 201, and the guide groove 201 is an annular ring with a notch; the first conduit 16 is connected to the guide groove 201; the bracket 3 is fixed with the cylinder cover 18; the cylinder cover 18 is rotatably connected to the rotating shaft 5; the front of the cylinder cover 18 is fixed with the inner cylinder 19; the rotating shaft 5 is a hollow rod; the outer wall of the inner cylinder 19 is located in the rotating shaft 5; the outer wall of the inner cylinder 19 is rotatably connected to the rotating shaft 5; the inner cylinder 19 is fixed with a partition Partition 20; the partition 20 divides the inner cylinder 19 into two spaces, upper and lower; a water storage chamber is opened in the turntable 6; the turntable 6 is connected to the rotating shaft 5; a cross plate 21 is fixed to the turntable 6; the cylinder cover 18 is connected to the third conduit 22; the third conduit 22 is connected to the guide groove 201; the partition in the guide groove 201 is located between the third conduit 22 and the first conduit 16; the cross plate 21 divides the water storage chamber of the turntable 6 into four fan-shaped spaces; the support rod 7 is a hollow rod; the four fan-shaped spaces of the turntable 6 are each connected to a support rod 7; each support rod 7 is connected to a fourth conduit 23; a water storage chamber is opened in the first die 9, the second die 10, the third die 11 and the fourth die 12; the four fourth conduits 23 are respectively connected to the first die 9, the second die 10, the third die 11 and the fourth die 12.

[0034] The separator 20 has a V-shaped groove formed on the upper and lower sides, respectively, for draining the water in the uppermost fan-shaped space in the turntable 6 and guiding the water into the lowermost fan-shaped space.

[0035] The contact surfaces between the inner cylinder 19 and the rotating shaft 5 are coated with a lubricating and wear-resistant coating to reduce wear between the inner cylinder 19 and the rotating shaft 5 .

[0036] The working steps of the above embodiment are: On the basis of the first embodiment, taking into account the entire stamping process, the first die 9, the second die 10, the third die 11 and the fourth die 12 perform stamping and stretching deformation on the shell stamping part 111 in turn. The shell stamping part 111 and the first die 9, the second die 10, the third die 11 and the fourth die 12 will generate a lot of heat. The high temperature causes the material to expand and contract, which easily leads to a reduction in the wall thickness of the subsequent shell stamping part 111, and the stamping accuracy of the shell stamping part 111 is affected. The cross plate 21 arranged in the turntable 6 divides the space in the turntable 6 into four sectors. Therefore, the circulating fluid is first poured into the fan-shaped space at the bottom of the turntable 6. The circulating fluid first fills and flows into the first die 9 at the bottom, and waits for the first die 9, the support rod 7 and the third conduit to pass through. After the cooling trough 201 is filled, the excess circulating liquid enters the guide groove 201 through the second conduit 17, the cooler 15 and the first conduit 16. After the guide groove 201 is also filled, the excess circulating liquid enters the fourth conduit 23. The liquid level of the circulating liquid rises until the liquid level of the circulating liquid is flush with the liquid level of the circulating liquid in the fan-shaped space at the bottom of the turntable 6. Then, the circulating liquid is injected into the fan-shaped spaces on the left and right sides to make the liquid level of the circulating liquid higher than the liquid level of the circulating liquid in the fan-shaped space at the bottom. The injection of the circulating liquid is stopped. The circulating liquid cools the first die 9. As the turntable 6 rotates, the corresponding parts on it are driven to rotate. The previously filled Circulating fluid is injected into the fan-shaped spaces on the left and right sides. Under the action of gravity, the circulating fluid in the fan-shaped space on one side flows into the corresponding cavity in the second die 10 to cool the second die 10. Then the turntable 6 continues to rotate, and the first die 9 rotates to the top. At this time, the circulating fluid in the fan-shaped space at the top and in the first die 9 flows back out and enters the upper part of the inner cylinder 19, and then flows along the partition 20. Under the action of gravity, it flows into the guide groove 201 along the fourth conduit 23. Since the liquid level of the circulating fluid is higher than the guide groove 201 at this time, the circulating fluid in the guide groove 201 then enters the first conduit 16 and the cooler 15. The cooler 15 is controlled to start. The cooler 15 cools the circulating fluid, and then the circulating fluid flows back to the second conduit 17 through the second conduit 17. The inner cylinder 19 flows along the V-shaped groove at the lower part of the partition 20 and forms a fan-shaped space connected with the inner cylinder 19, and the circulating liquid enters the turntable 6 again. The circulating liquid entering the turntable 6 is gathered in the fan-shaped space at the bottom, and then the circulating liquid passes through the bottom support rod 7 and the third conduit 22 in turn, filling the inner space of the third pressing die 11 at the bottom. The circulating liquid cools down the third pressing die 11. Since the space inside the turntable 6 is separated by the cross plate 21, the circulating liquid returning and the circulating liquid just entering will not contact each other. Therefore, the natural flow of the circulating liquid between the molds realizes a heat dissipation system without additional power drive, which can effectively control the mold temperature, ensure the stamping accuracy under long-term operation of the equipment, and extend the service life of the equipment. At the same time, since no additional mechanical heat dissipation device is required,It avoids the influence of equipment operation vibration on stamping and stretching accuracy, and further improves the stability of the system.

[0037] While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A housing stamping device for producing a brushless motor, comprising a double-layer frame (1); the double-layer frame (1) is composed of two base plates, and the two base plates are connected by a plurality of vertical rods; the characteristics are: The double-layer frame (1) further comprises a bottom die (2), a bracket (3), a servo motor (4), a rotating shaft (5), a turntable (6), a punching unit, a first electric actuator (13) and a cylinder die (14); the upper base plate of the double-layer frame (1) is detachably connected to the bottom die (2); the double-layer frame (1) is fixedly connected to the bracket (3); the bracket (3) is installed with a servo motor (4); the bracket (3) is rotatably connected to the rotating shaft (5); the output shaft of the servo motor (4) is connected to the rotating shaft (5) through a pulley transmission; the front of the rotating shaft (5) is fixedly connected to the rotating shaft (5). The turntable (6) is connected to a punching unit; the punching unit is used to press the motor housing raw material into the bottom mold (2) to form a housing punching part (111); a plurality of first electric actuators (13) are installed at the bottom of the bottom mold (2); the telescopic parts of all the first electric actuators (13) are fixedly connected to a cylinder mold (14); the cylinder mold (14) is slidably connected to the bottom mold (2); a plurality of through holes are opened on the bottom mold (2); a circular hole is opened on the upper base plate of the double-layer frame (1), and the circular hole is connected to the through holes of all the bottom molds (2).

2. The housing stamping equipment for brushless motor production according to claim 1, characterized in that: The stamping unit comprises a support rod (7), a second electric actuator (8), a first die (9), a second die (10), a third die (11) and a fourth die (12); the turntable (6) is connected to four support rods (7); the turntable (6) is installed with four second electric actuators (8); each second electric actuator (8) is fixedly connected to a support rod (7); the telescopic parts of the four second electric actuators (8) are detachably connected to the first die (9), the second die (10), the third die (11) and the fourth die (12); the first die (9) is a shaping die; the second die (10) is a punching die; the third die (11) is a concave die; and the fourth die (12) is a convex die.

3. The housing stamping equipment for brushless motor production according to claim 2, characterized in that: The second pressing die (10) is composed of a flat die and a punching rod, and the punching rod is used to punch holes in the housing stamping part (111).

4. The housing stamping equipment for brushless motor production according to claim 3, characterized in that: The third die (11) is composed of positioning rods and recessed grooves, and the number of the positioning rods is consistent with the number of heat dissipation holes of the housing stamping part (111).

5. The housing stamping equipment for brushless motor production according to claim 4, characterized in that: The fourth pressing die (12) is composed of a positioning rod and a punching cone head, and the length of the positioning rod is greater than the length of the punching rod.

6. The housing stamping equipment for brushless motor production according to claim 5, characterized in that: An annular step is provided on the bottom mold (2).

7. A housing stamping device for producing a brushless motor according to any one of claims 1 to 6, characterized in that: An annular chamfer is provided at the step corner of the bottom mold (2).

8. The housing stamping equipment for brushless motor production according to claim 7, characterized in that: The cooler (15) is mounted on the bracket (3); the cooler (15) is connected to the first conduit (16); the cooler (15) is connected to the second conduit (17) on the side away from the first conduit (16); the bottom mold (2) is provided with a guide tube (18); the guide tube (19) is provided on the bottom mold (2). The flow channel (201) is provided with a partition plate in the flow channel (201), and the flow channel (201) is annular with a notch; the first conduit (16) is connected to the flow channel (201); the bracket (3) is fixed with a cylinder cover (18); the cylinder cover (18) is rotatably connected to the rotating shaft (5); the front of the cylinder cover (18) is fixed with an inner cylinder (19); the rotating shaft (5) is a hollow rod; the inner cylinder (19) is rotatably connected to the rotating shaft (5); the inner cylinder (19) is fixed with a partition (20); the partition The component (20) divides the inner cylinder (19) into two spaces, upper and lower; a water storage cavity is formed in the turntable (6); the turntable (6) is connected to the rotating shaft (5); a cross plate (21) is fixed to the turntable (6); the cylinder cover (18) is connected to a third conduit (22); the third conduit (22) is connected to the guide groove (201); a partition in the guide groove (201) is located between the third conduit (22) and the first conduit (16); the cross plate (21) divides the water storage cavity of the turntable (6) into Four fan-shaped spaces; the support rod (7) is a hollow rod; the four fan-shaped spaces of the turntable (6) are each connected to a support rod (7); each support rod (7) is connected to a fourth conduit (23); the first compression mold (9), the second compression mold (10), the third compression mold (11) and the fourth compression mold (12) are each provided with a water storage cavity; the four fourth conduits (23) are respectively connected to the first compression mold (9), the second compression mold (10), the third compression mold (11) and the fourth compression mold (12).

9. The housing stamping equipment for brushless motor production according to claim 8, characterized in that: The separator (20) is provided with a V-shaped groove at the top and the bottom.

10. The housing stamping equipment for brushless motor production according to claim 9, characterized in that: The contact surfaces of the inner cylinder (19) and the rotating shaft (5) are both coated with a wear-resistant coating.

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