Spraying treatment device for stepper motor housing surface

Abstract

The present invention is applicable to the technical field of stepper motor surface spraying, and provides a spraying processing device for the surface of a stepper motor shell, including a base frame, a support frame is fixedly connected to the upper side of the base frame, a baffle is fixedly connected to the inner middle of the support frame, a transmission mechanism is provided on the upper side of the base frame, a transportation mechanism is provided on one side of the transmission mechanism and a spraying mechanism is provided on the other side, a cleaning mechanism is provided on one side of the baffle, and the stepper motor is automatically clamped by the transportation mechanism, so that the sprayed stepper motor is taken down, and then the unsprayed stepper motor is placed on the clamping end of the four-claw chuck for clamping, thereby achieving the effect of automatic loading and unloading of the stepper motor, and the transmission mechanism transmits the stepper motor, so that the stepper motors arrive at the working area of ​​the spraying mechanism in turn for spraying, thereby achieving the effect of high spraying efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of stepper motor surface spraying, and more specifically, to a spraying treatment device for the surface of a stepper motor housing. Background Art

[0002] A stepper motor is a motor that converts electrical pulse signals into angular displacement. It consists of two parts: a stator and a rotor. It is usually controlled by an external controller that provides pulse signals and direction signals to control the rotation of the motor. Stepper motors generally used in high-load or continuous operation applications require heat dissipation holes and heat dissipation fins to be designed on their surface to improve the thermal management capabilities of the stepper motor.

[0003] When all the parts of the stepper motor are installed, their surfaces need to be painted. Painting can provide a protective layer for the motor to prevent the metal surface from contacting with moisture, salt or other corrosive substances, so as to achieve an anti-rust effect, thereby extending the service life of the motor. Painting can also improve the appearance of the stepper motor and make it consistent with the surrounding environment or equipment.

[0004] However, when the existing stepper motor spraying device is spraying the stepper motor, since the distance between the two cooling fins is too small, in order to completely spray the space between the two cooling fins with paint, it is necessary to stay at the position of the cooling fins for a period of time. If the stay time is too long, it is easy to cause paint accumulation in other areas of the stepper motor. The paint accumulation may block the cooling holes or surface of the motor, affecting the heat dissipation and causing the motor to overheat. Overheating may affect the electrical performance of the motor, including torque and speed, thereby reducing its working efficiency.

[0005] Therefore, it is necessary to design a spraying device that prevents paint from accumulating and sprays the surface of the stepper motor evenly to improve the above-mentioned technical problems. Summary of the invention

[0006] In view of the shortcomings of the prior art, the present invention aims to provide a spraying treatment device for the surface of a stepper motor housing.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a spray processing device for the surface of a stepper motor housing, comprising a base frame, a support frame is fixedly connected to the upper side of the base frame, a baffle is fixedly connected to the middle of the support frame, a transmission mechanism is provided on the upper side of the base frame, a transport mechanism is provided on one side of the transmission mechanism and a spraying mechanism is provided on the other side, and a cleaning mechanism is provided on one side of the baffle.

[0008] The present invention is further configured as follows: the transmission mechanism includes a circular guide rail, the circular guide rail is fixedly connected to the upper side of the base frame, an electric turntable is provided at the four inner corners of the circular guide rail, the outer side of the electric turntable is meshedly connected with a transmission belt, and a plurality of positioning clamping components are provided on the upper side of the transmission belt.

[0009] The present invention is further configured as follows: the positioning and clamping assembly includes a first slide, the first slide is arranged on the upper side of the circular guide rail, one side of the first slide is fixedly connected to a connecting plate, the other side of the connecting plate is fixedly connected to a transmission belt, the lower side bearing of the first slide is connected to four rotating wheels, the four rotating wheels are all slidably connected to the circular guide rail, the upper side of the first slide is fixedly connected to a first rotating motor, the output end of the first rotating motor is fixedly connected to a four-claw chuck, and the clamping end of the four-claw chuck is provided with a stepping motor.

[0010] The present invention is further configured as follows: a plurality of heat dissipation holes are provided on the upper side of the stepper motor, a plurality of heat dissipation fins are provided on the outer side of the stepper motor, and a driver is fixedly connected to one side of the heat dissipation fin.

[0011] The present invention is further configured as follows: the transport mechanism includes a support leg, the support leg is fixedly connected to the upper side of the base frame, one side of the support leg is fixedly connected to a first electric slide rail, the sliding end of the first electric slide rail is fixedly connected to a second slide seat, one side of the second slide seat is fixedly connected to a fixed frame, one side of the fixed frame is fixedly connected to a first hydraulic cylinder, the output end of the first hydraulic cylinder passes through the fixed frame and is fixedly connected to a double-axis hydraulic cylinder, and both output ends of the double-axis hydraulic cylinder are fixedly connected to clamps.

[0012] The stepper motor is automatically clamped by the transport mechanism, so that the sprayed stepper motor can be taken down, and then the unsprayed stepper motor is placed on the clamping end of the four-claw chuck for clamping, thereby achieving the effect of automatic loading and unloading of the stepper motor. The transport mechanism transports the stepper motor, so that the stepper motors arrive at the working area of ​​the spray mechanism in turn for spraying, thereby achieving the effect of high spraying efficiency.

[0013] The present invention is further configured as follows: the spraying mechanism includes a second electric slide rail, the second electric slide rail is fixedly connected to the upper side of the base frame, the sliding end of the second electric slide rail is fixedly connected to the third slide seat, the upper side of the third slide seat is fixedly connected to the third electric slide rail, the sliding end of the third electric slide rail is fixedly connected to the fourth slide seat, one side of the fourth slide seat is provided with a spray adjustment assembly, the upper side of the fourth slide seat is fixedly connected to a connecting rod, and the other end of the connecting rod is provided with a hole plugging spray assembly.

[0014] The present invention is further configured as follows: the injection adjustment assembly includes a second rotating motor, the second rotating motor is fixedly connected to one side of a fourth slide, the output end of the second rotating motor is fixedly connected to a turntable, and one side of the turntable is fixedly connected to a first small head injection unit, a large injection head, and a second small head injection unit in sequence from top to bottom.

[0015] By switching between the small spray head and the large spray head for spraying, the large spray head can quickly spray the surface of the stepper motor. After spraying, the small spray head can be switched to quickly spray paint on each area between the fins. This effectively avoids the phenomenon of paint accumulation in the rest of the stepper motor when spraying the area between the two cooling fins, thereby achieving the effect of uniform spraying and high spraying efficiency.

[0016] The present invention is further configured as follows: the first small head injection unit and the second small head injection unit have the same structure, the first small head injection unit includes a second hydraulic cylinder, the second hydraulic cylinder is fixedly connected to one side of the turntable, the output end of the second hydraulic cylinder is fixedly connected to a connecting rod, one side of the connecting rod is fixedly connected to a micro motor, and the output end of the micro motor passes through the side wall of the connecting rod and is fixedly connected to the small injection head.

[0017] The extension length and swing angle of the two small spray heads are adjusted by the second hydraulic cylinder and the micro motor, so that the dead corners of the connection between the driver and the heat sink fins can be evenly sprayed, effectively preventing the connection between the driver and the heat sink fins from contacting with moisture, salt or other corrosive substances, which would cause rust at the connection between the driver and the heat sink fins, thereby achieving a high completion rate of painting at the dead corners of the stepper motor and uniform spraying.

[0018] The present invention is further configured as follows: the hole plugging injection assembly includes a paint collecting tray, the paint collecting tray is fixedly connected to the other end of the connecting rod, a plurality of annular injection heads are evenly and fixedly connected to the lower side of the paint collecting tray, a paint storage chamber is provided inside the paint collecting tray, a blocking column is fixedly connected to the outer side of each of the annular injection heads, an input end of each of the blocking columns is fixedly connected to a solenoid valve, and the input end of the solenoid valve is connected to the paint storage chamber pipe of the paint collecting tray.

[0019] The blocking column is controlled to move downward by the third electric slide rail, so as to adjust the spray distance of the annular spray head. While adjusting the spray distance, the blocking column is inserted into the heat dissipation hole, so that the hole blocking spray assembly can not only block the heat dissipation hole, but also spray paint around the heat dissipation hole while blocking, effectively preventing the paint from penetrating into the insulating material of the motor through the heat dissipation hole and reducing the insulation performance of the motor, thereby achieving the effect of protecting the insulating material and improving the spraying quality.

[0020] The present invention is further configured as follows: the cleaning mechanism includes a third hydraulic cylinder, the third hydraulic cylinder is fixedly connected to one side of the baffle, the output end of the third hydraulic cylinder is fixedly connected to a collecting box, the upper side of the collecting box is fixedly connected to a cleaning disk, a plurality of through holes are provided inside the cleaning disk, and the inner walls of the through holes are fixedly connected to annular scrapers.

[0021] After the stepper motor is painted, the paint on the surface of the blocking column is scraped off with a circular scraper, which effectively prevents the blocking column from being unable to be inserted into the heat dissipation hole and blocking the heat dissipation hole, achieving the effect of high cleaning efficiency and preventing difficulty in inserting the blocking column.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. The stepper motor is automatically clamped by the transport mechanism, so that the sprayed stepper motor can be taken down, and then the unsprayed stepper motor is placed on the clamping end of the four-claw chuck for clamping, so as to achieve the effect of automatic loading and unloading of the stepper motor, and the transport mechanism transmits the stepper motor, so that the stepper motor reaches the working area of ​​the spraying mechanism in turn for spraying, so as to achieve the effect of high spraying efficiency.

[0024] 2. By switching between the small spray head and the large spray head for spraying, the large spray head can quickly spray the surface of the stepper motor. After spraying, the small spray head can be switched to quickly spray paint on each area between the fins. This effectively avoids the phenomenon of paint accumulation in the rest of the stepper motor when spraying the area between the two cooling fins, achieving the effect of uniform spraying and high spraying efficiency.

[0025] 3. The extension length and swing angle of the two small spray heads are adjusted by the second hydraulic cylinder and the micro motor, so that the dead angle of the connection between the driver and the heat sink fins can be evenly sprayed, which effectively prevents the connection between the driver and the heat sink fins from contacting with moisture, salt or other corrosive substances, causing rust at the connection between the driver and the heat sink fins, achieving a high completion rate of painting at the dead angle of the stepper motor and a uniform spraying effect.

[0026] 4. The blocking column is controlled to move downward by the third electric slide rail, so as to adjust the spray distance of the annular spray head. While adjusting the spray distance, the blocking column is inserted into the heat dissipation hole, so that the hole blocking spray assembly can not only block the heat dissipation hole, but also spray paint around the heat dissipation hole while blocking, effectively preventing the paint from penetrating into the insulating material of the motor through the heat dissipation hole and reducing the insulation performance of the motor, thereby achieving the effect of protecting the insulating material and improving the spraying quality.

[0027] 5. After the stepper motor is painted, the paint on the surface of the blocking column is scraped off with a circular scraper, which effectively prevents the blocking column from being unable to be inserted into the heat dissipation hole and blocking the heat dissipation hole, achieving the effect of high cleaning efficiency and preventing the difficulty of inserting the blocking column. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the spray treatment device for the surface of the stepping motor housing of the present invention;

[0029] Figure 2 It is a schematic diagram of the overall structure of the spray treatment device of the present invention from another perspective;

[0030] Figure 3 It is a structural schematic diagram of the transmission mechanism in the present invention;

[0031] Figure 4 It is a structural schematic diagram of the positioning and clamping assembly in the present invention;

[0032] Figure 5 It is a structural schematic diagram of the stepping motor housing in the present invention;

[0033] Figure 6 It is a structural schematic diagram of the transportation mechanism in the present invention;

[0034] Figure 7 It is a structural schematic diagram of the spraying mechanism in the present invention;

[0035] Figure 8 It is a structural schematic diagram of the injection adjustment component in the present invention;

[0036] Fig. 9 It is a structural schematic diagram of the first small head injection unit in the present invention;

[0037] Fig.10 It is a structural schematic diagram of the hole plugging injection assembly in the present invention;

[0038] Fig.11 It is a structural schematic diagram of the cleaning mechanism in the present invention.

[0039] Description of reference numerals: 1. chassis;

[0040] 2. Support frame;

[0041] 3. Baffle;

[0042] 4. Transport mechanism; 41. Support leg; 42. First electric slide rail; 43. Second slide seat; 44. First hydraulic cylinder; 45. Fixed frame; 46. Double-axis hydraulic cylinder; 47. Clamping claw;

[0043] 5. Transmission mechanism; 51. Circular guide rail; 52. Electric turntable; 53. Transmission belt; 54. Positioning and clamping assembly;

[0044] 541, rotating wheel; 542, first slide seat; 543, connecting plate; 544, first rotating motor; 545, four-claw chuck;

[0045] 6. Spraying mechanism; 61. Second electric slide rail; 62. Third slide seat; 63. Spray adjustment assembly; 64. Fourth slide seat; 65. Third electric slide rail; 66. Hole plugging spray assembly; 67. Connecting rod;

[0046] 631, second rotating motor; 632, first small head spray unit; 633, large spray head; 634, second small head spray unit;

[0047] 6321, small injection head; 6322, micro motor; 6323, connecting rod; 6324, second hydraulic cylinder;

[0048] 661, paint collecting tray; 662, blocking column; 663, annular spray head;

[0049] 7. Cleaning mechanism; 71. Through hole; 72. Collection box; 73. Cleaning tray; 74. Third hydraulic cylinder;

[0050] 8. Stepper motor; 81. Heat dissipation hole; 82. Heat dissipation fin; 83. Driver. DETAILED DESCRIPTION

[0051] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0052] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0053] For example, see Figure 1-11 The present invention provides the following technical solution: a spray treatment device for the surface of a stepper motor housing, comprising a base frame 1, a support frame 2 is fixedly connected to the upper side of the base frame 1, a baffle 3 is fixedly connected to the middle of the support frame 2, a transmission mechanism 5 is provided on the upper side of the base frame 1, a transport mechanism 4 is provided on one side of the transmission mechanism 5 and a spraying mechanism 6 is provided on the other side, and a cleaning mechanism 7 is provided on one side of the baffle 3.

[0054] Specifically, the transport mechanism 4 is used to carry the stepper motor 8 to the transmission mechanism 5, the transmission mechanism 5 is used to transport the stepper motor 8, so that the stepper motor 8 reaches the working area of ​​the spraying mechanism 6 in turn for spraying, and the cleaning mechanism 7 is used to clean the spraying mechanism 6.

[0055] See also Figure 3The transmission mechanism 5 includes a circular guide rail 51, which is fixedly connected to the upper side of the base frame 1. An electric turntable 52 is provided at the four inner corners of the circular guide rail 51. A transmission belt 53 is meshed and connected to the outer side of the electric turntable 52. A plurality of positioning clamping components 54 are provided on the upper side of the transmission belt 53.

[0056] Specifically, the rotation of the electric turntable 52 is used to control the movement of the transmission belt 53, thereby driving the positioning clamping assembly 54 to move.

[0057] See also Figure 4 The positioning and clamping assembly 54 includes a first slide 542, which is arranged on the upper side of the circular guide rail 51, one side of the first slide 542 is fixedly connected to a connecting plate 543, and the other side of the connecting plate 543 is fixedly connected to the transmission belt 53, the lower side bearing of the first slide 542 is connected to four rotating wheels 541, and the four rotating wheels 541 are all slidably connected to the circular guide rail 51, the upper side of the first slide 542 is fixedly connected to a first rotating motor 544, the output end of the first rotating motor 544 is fixedly connected to a four-claw chuck 545, and the clamping end of the four-claw chuck 545 is provided with a stepping motor 8.

[0058] Specifically, when the electric turntable 52 rotates, the transmission belt 53 moves, driving the stepper motor 8 above the first slide 542 to move. The rotation of the output end of the first rotating motor 544 is used to control the rotation of the stepper motor 8, so that the surface of the stepper motor 8 can be sprayed. The four-claw chuck 545 is used to clamp one end of the stepper motor 8 to fix the stepper motor 8.

[0059] See also Figure 5 A plurality of heat dissipation holes 81 are provided on the upper side of the stepper motor 8 , a plurality of heat dissipation fins 82 are provided on the outer side of the stepper motor 8 , and a driver 83 is fixedly connected to one side of the heat dissipation fin 82 .

[0060] See also Figure 6 The transport mechanism 4 includes a support leg 41, which is fixedly connected to the upper side of the base frame 1, one side of the support leg 41 is fixedly connected to a first electric slide rail 42, the sliding end of the first electric slide rail 42 is fixedly connected to a second slide seat 43, one side of the second slide seat 43 is fixedly connected to a fixed frame 45, one side of the fixed frame 45 is fixedly connected to a first hydraulic cylinder 44, the output end of the first hydraulic cylinder 44 passes through the fixed frame 45 and is fixedly connected to a double-axis hydraulic cylinder 46, and both output ends of the double-axis hydraulic cylinder 46 are fixedly connected to clamps 47.

[0061] Specifically, the sliding of the sliding end of the first electric slide rail 42 is used to control the clamp 47 to reach the top of the stepper motor 8, the extension and retraction of the output end of the first hydraulic cylinder 44 is used to control the movement of the clamp 47 up and down, so that the clamp 47 is close to or away from the stepper motor 8, and the retraction of the output end of the dual-axis hydraulic cylinder 46 is used to clamp the stepper motor 8, thereby taking down the sprayed stepper motor 8, and then placing the unsprayed stepper motor 8 on the clamping end of the four-jaw chuck 545 for clamping.

[0062] The stepper motor 8 is automatically clamped by the transport mechanism 4, so that the sprayed stepper motor 8 is taken down, and then the unsprayed stepper motor 8 is placed on the clamping end of the four-claw chuck 545 for clamping, thereby achieving the effect of automatic loading and unloading of the stepper motor 8, and the transport mechanism 5 transmits the stepper motor 8, so that the stepper motor 8 reaches the working area of ​​the spray mechanism 6 in turn for spraying, thereby achieving the effect of high spraying efficiency.

[0063] Embodiment 2: When the existing spraying device is spraying the stepper motor 8, since the distance between the two heat dissipating fins 82 is too small, in order to completely spray the paint between the two heat dissipating fins 82 during painting, it is necessary to stay at the position of the heat dissipating fins 82 for a period of time. If the stay time is too long, it is easy to cause paint accumulation in other areas of the stepper motor 8. The paint accumulation may block the heat dissipation holes 81 or the surface of the motor, affecting the heat dissipation and causing the motor to overheat. Overheating may affect the electrical performance of the motor, including torque and speed, thereby reducing its working efficiency. Therefore, the following structure is designed to solve the above technical problems.

[0064] See also Figure 7 The spraying mechanism 6 includes a second electric slide rail 61, which is fixedly connected to the upper side of the base frame 1, and the sliding end of the second electric slide rail 61 is fixedly connected to the third slide seat 62, and the upper side of the third slide seat 62 is fixedly connected to the third electric slide rail 65, and the sliding end of the third electric slide rail 65 is fixedly connected to the fourth slide seat 64, and a spray adjustment assembly 63 is provided on one side of the fourth slide seat 64, and a connecting rod 67 is fixedly connected to the upper side of the fourth slide seat 64, and the other end of the connecting rod 67 is provided with a hole plugging spray assembly 66.

[0065] Specifically, the sliding of the sliding end of the second electric slide rail 61 is used to control the movement of the third electric slide rail 65, so that the injection adjustment component 63 and the hole plugging injection component 66 are close to or away from the stepper motor 8, and the sliding of the sliding end of the third electric slide rail 65 is used to control the injection adjustment component 63 and the hole plugging injection component 66 to move up and down, so as to spray paint on the stepper motor 8.

[0066] See also Figure 8The injection adjustment component 63 includes a second rotating motor 631, which is fixedly connected to one side of the fourth slide 64. The output end of the second rotating motor 631 is fixedly connected to a turntable, and one side of the turntable is fixedly connected to the first small head injection unit 632, the large injection head 633, and the second small head injection unit 634 in sequence from top to bottom.

[0067] Specifically, the rotation of the output end of the second rotating motor 631 is used to control the rotation of the first small head spray unit 632, the large spray head 633, and the second small head spray unit 634. The input end of the large spray head 633 is connected to the paint bucket through a pipe. When the large spray head 633 is opened, a wide range of paint can be sprayed from the output end.

[0068] When the stepper motor 8 needs to be sprayed, the output end of the first rotating motor 544 rotates to control the stepper motor 8 to rotate, and the sliding end of the second electric slide rail 61 slides to control the third electric slide rail 65 to move, so that the large spray head 633 is close to the stepper motor 8 to achieve a suitable spraying distance. The large spray head 633 is opened to spray paint on the surface of the rotating stepper motor 8.

[0069] When the stepper motor 8 is rotated five times, the surface of the stepper motor 8 is covered with paint, the large spray head 633 is closed, the output end of the first rotating motor 544 stops rotating, and the sliding end of the second electric slide rail 61 slides to control the third electric slide rail 65 to move, so that the small spray head 6321 is close to between the two cooling fins 82 of the stepper motor 8.

[0070] The output end of the micro motor 6322 of the first small head injection unit 632 rotates counterclockwise by 45 degrees to control the small injection head 6321 of the first small head injection unit 632 to swing downward, and the output end of the micro motor 6322 of the second small head injection unit 634 rotates clockwise by 45 degrees to control the small injection head 6321 of the first small head injection unit 632 to swing upward, until the output ends of the two micro motors 6322 rotate by 45 degrees, at which time the two small injection heads 6321 are aligned with the same point, which is the center of the area between the two heat sink fins 82. The two small spray heads 6321 start to spray paint at the same time, and the output ends of the two micro motors 6322 rotate ninety degrees clockwise and then ninety degrees counterclockwise, thereby controlling the two small spray heads 6321 to swing up and down, and then spray paint on the strip area between the two heat dissipating fins 82. After the two small spray heads 6321 swing up and down twice, the output end of the first rotating motor 544 starts to rotate, and the two small spray heads 6321 are aimed at the next area between the fins, and spraying is performed again, and so on, so that each area between the fins is sprayed with paint.

[0071] By switching the small spray head 6321 and the large spray head 633 for spraying, the large spray head 633 can quickly spray the surface of the stepper motor 8. After spraying, the small spray head 6321 is switched to quickly spray paint on each area between the fins, effectively avoiding the phenomenon of paint accumulation in the rest of the stepper motor 8 when spraying the area between the two heat dissipating fins 82 of the stepper motor 8, thereby achieving the effect of uniform spraying and high spraying efficiency.

[0072] In the third embodiment, a driver 83 is usually installed on one side of the heat dissipation fin 82 of the stepper motor 8. When the spraying device is spraying the stepper motor 8, the connection between the driver 83 and the heat dissipation fin 82 is a dead angle for spraying, and the paint usually cannot be sprayed in completely. Therefore, it is impossible to prevent the connection between the driver 83 and the heat dissipation fin 82 from contacting with moisture, salt or other corrosive substances, resulting in the connection between the driver 83 and the heat dissipation fin 82 being prone to rust, and even breaking in severe cases. Therefore, the following structure is designed to solve the above technical problems.

[0073] See also Fig. 9 The first small head injection unit 632 and the second small head injection unit 634 have the same structure. The first small head injection unit 632 includes a second hydraulic cylinder 6324, and the second hydraulic cylinder 6324 is fixedly connected to one side of the turntable. The output end of the second hydraulic cylinder 6324 is fixedly connected to a connecting rod 6323, and one side of the connecting rod 6323 is fixedly connected to a micro motor 6322. The output end of the micro motor 6322 passes through the side wall of the connecting rod 6323 and is fixedly connected to the small injection head 6321.

[0074] Specifically, the extension and retraction of the output end of the second hydraulic cylinder 6324 is used to control the small injection head 6321 to approach or move away from the injection blind spot of the stepper motor 8. When the output end of the micro motor 6322 rotates clockwise, the small injection head 6321 swings upward. When the output end of the micro motor 6322 rotates counterclockwise, the small injection head 6321 swings downward.

[0075] When it is necessary to spray the dead corner of the stepper motor 8, at the output end of the first rotating motor 544, the driver 83 of the stepper motor 8 is aligned with the small spray head 6321, and the output end of the micro motor 6322 of the first small head spray unit 632 is controlled to rotate counterclockwise by ninety degrees, and the output end of the micro motor 6322 of the second small head spray unit 634 is rotated clockwise by ninety degrees. At this time, the output end of the small spray head 6321 of the first small head spray unit 632 is aligned with the output end of the small spray head 6321 of the second small head spray unit 634, and the output end of the second hydraulic cylinder 6324 is fully extended, so that the output ends of the two small spray heads 6321 are aligned with the dead corner of the spraying of the stepper motor 8, and the two small spray heads 6321 begin to open to spray the dead corner of the spraying of the stepper motor 8, and the output end of the second rotating motor 631 begins to rotate, indirectly driving the two small spray heads 6321 to rotate, thereby rotating and spraying the side of the driver 83 facing the heat dissipation fins 82, so that the paint can be more evenly sprayed inside the dead corner of the stepper motor 8.

[0076] When it is necessary to paint the inter-fin areas on the upper and lower sides of the driver 83, the output end of the second hydraulic cylinder 6324 is fully extended, and the two small spray heads 6321 are controlled to extend into the inter-fin areas on the upper and lower sides of the driver 83 respectively, and the two small spray heads 6321 are controlled to move separately, which effectively prevents the large spray head 633 from moving and colliding with the driver 83, and adjusts the swing range of the small spray head 6321 according to the distance between the upper and lower surfaces of the driver 83. When the distance between the upper and lower surfaces of the driver 83 is larger, the swing range of the small spray head 6321 is smaller, and when the distance between the upper and lower surfaces of the driver 83 is smaller, the swing range of the small spray head 6321 is larger. When the upper and lower inter-fin areas are sprayed, the output end of the first rotating motor 544 starts to rotate, and the two small spray heads 6321 are aimed at the next inter-fin area for spraying again, and so on, so as to spray paint each inter-fin area of ​​the upper and lower parts of the driver 83.

[0077] The extension length and swing angle of the two small spray heads 6321 are adjusted by the second hydraulic cylinder 6324 and the micro motor 6322, so that the dead corners of the connection between the driver 83 and the heat dissipating fins 82 can be evenly sprayed, effectively preventing the connection between the driver 83 and the heat dissipating fins 82 from contacting with moisture, salt or other corrosive substances, which would cause rust at the connection between the driver 83 and the heat dissipating fins 82, thereby achieving a high completion rate of painting at the dead corners of the stepper motor 8 and a uniform spraying effect.

[0078] Embodiment 4: A stepper motor 8 generally used in high-load or continuous operation applications needs to be designed with heat dissipation holes 81 on its surface to improve the thermal management capability of the stepper motor 8. When the heat dissipation hole 81 area is painted, part of the paint will penetrate into the insulating material of the motor through the heat dissipation hole 81, reducing the insulation performance of the motor, increasing the risk of electrical failure, and may increase the friction of the internal components of the motor, resulting in additional wear and energy loss. Therefore, the following structure is designed to solve the above technical problems.

[0079] See also Fig.10 The hole blocking injection assembly 66 includes a paint collecting tray 661, which is fixedly connected to the other end of the connecting rod 67. A plurality of annular injection heads 663 are evenly and fixedly connected to the lower side of the paint collecting tray 661. A paint storage chamber is provided inside the paint collecting tray 661. A blocking column 662 is fixedly connected to the outer side of each annular injection head 663. An input end of each blocking column 662 is fixedly connected to a solenoid valve, and the input end of the solenoid valve is connected to the paint storage chamber pipe of the paint collecting tray 661.

[0080] Specifically, the blocking column 662 is used to be inserted into the heat dissipation hole 81 of the stepper motor 8 , and the annular spray head 663 is used to spray paint around the heat dissipation hole 81 of the stepper motor 8 .

[0081] When it is necessary to spray paint around the heat dissipation holes 81 of the stepper motor 8, the third electric slide rail 65 controls the blocking column 662 to move downward until the blocking column 662 extends into the heat dissipation holes 81, and the sliding end of the third electric slide rail 65 stops moving, and the annular spray head 663 is opened to spray paint around the heat dissipation holes 81 of the stepper motor 8. Since the heat dissipation holes 81 are blocked by the blocking column 662, the sprayed paint cannot enter the heat dissipation holes 81. When the spraying around the heat dissipation holes 81 of the stepper motor 8 is completed, the annular spray head 663 is closed, and the third electric slide rail 65 controls the blocking column 662 to move upward, so that the blocking column 662 is away from the heat dissipation holes 81.

[0082] The blocking column 662 is controlled to move downward by the third electric slide rail 65, so as to adjust the spraying distance of the annular spray head 663. While adjusting the spraying distance, the blocking column 662 is inserted into the heat dissipation hole 81, so that the hole blocking spray assembly 66 can not only block the heat dissipation hole 81, but also spray paint around the heat dissipation hole 81 while blocking, thereby effectively preventing the paint from penetrating into the insulating material of the motor through the heat dissipation hole 81 and reducing the insulation performance of the motor, thereby achieving the effect of protecting the insulating material and improving the spraying quality.

[0083] In embodiment five, the blocking column 662 blocks the heat dissipation hole 81. When paint is sprayed around the heat dissipation hole 81, part of the paint will be sprayed on the surface of the blocking column 662. After a long time, too much paint will accumulate on the surface of the blocking column 662, making it impossible for the blocking column 662 to be inserted into the heat dissipation hole 81, and further unable to block the heat dissipation hole 81. Therefore, the following structure is designed to solve the above technical problem.

[0084] See also Fig.11 The cleaning mechanism 7 includes a third hydraulic cylinder 74, which is fixedly connected to one side of the baffle 3. The output end of the third hydraulic cylinder 74 is fixedly connected to a collecting box 72, and the upper side of the collecting box 72 is fixedly connected to a cleaning disk 73. The interior of the cleaning disk 73 is provided with a plurality of through holes 71, and the inner walls of the through holes 71 are fixedly connected to an annular scraper.

[0085] Specifically, the extension and retraction of the output end of the third hydraulic cylinder 74 is used to control the cleaning disk 73 to reach directly below the blocking column 662, and the annular scraper is used to clean the surface of the blocking column 662, thereby scraping off excess paint.

[0086] When one of the stepper motors 8 has finished spraying, the output end of the third hydraulic cylinder 74 extends out to control the cleaning disk 73 to move until each blocking column 662 is aligned with each through hole 71, and the output end of the third hydraulic cylinder 74 stops extending, and the third electric slide rail 65 controls the blocking column 662 to move downward, and the blocking column 662 passes through the through hole 71, and the annular scraper scrapes and cleans the paint on the surface of the blocking column 662, and scrapes off the solidified paint debris and drops it into the cleaning disk 73. When the paint on the surface of all the blocking columns 662 is cleaned, the third electric slide rail 65 controls the blocking column 662 to move upward, and the blocking column 662 leaves the through hole 71, and the output end of the third hydraulic cylinder 74 retracts to control the cleaning disk 73 to return.

[0087] After the stepper motor 8 is painted, the paint on the surface of the blocking column 662 is scraped off by a circular scraper, which effectively prevents the blocking column 662 from being unable to insert into the heat dissipation hole 81 and blocking the heat dissipation hole 81, thereby achieving the effect of high cleaning efficiency and preventing the blocking column 662 from being difficult to insert.

[0088] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A spraying treatment device for the surface of a stepper motor housing, characterized in that: The invention comprises a base frame (1), a support frame (2) is fixedly connected to the upper side of the base frame (1), a baffle (3) is fixedly connected to the middle of the support frame (2), a transmission mechanism (5) is provided on the upper side of the base frame (1), a transport mechanism (4) is provided on one side of the transmission mechanism (5) and a spraying mechanism (6) is provided on the other side, and a cleaning mechanism (7) is provided on one side of the baffle (3); The transmission mechanism (5) comprises a circular guide rail (51), the circular guide rail (51) is fixedly connected to the upper side of the base frame (1), an electric turntable (52) is provided at the four inner corners of the circular guide rail (51), a transmission belt (53) is meshedly connected to the outer side of the electric turntable (52), and a plurality of positioning clamping components (54) are provided on the upper side of the transmission belt (53); The positioning and clamping assembly (54) comprises a first slide (542), the first slide (542) being arranged on the upper side of the circular guide rail (51), a connecting plate (543) being fixedly connected to one side of the first slide (542), the other side of the connecting plate (543) being fixedly connected to the transmission belt (53), four rotating wheels (541) being connected to the lower bearing of the first slide (542), the four rotating wheels (541) being all slidably connected to the circular guide rail (51), a first rotating motor (544) being fixedly connected to the upper side of the first slide (542), a four-claw chuck (545) being fixedly connected to the output end of the first rotating motor (544), and a stepping motor (8) being provided at the clamping end of the four-claw chuck (545); A plurality of heat dissipation holes (81) are provided on the upper side of the stepper motor (8), a plurality of heat dissipation fins (82) are provided on the outer side of the stepper motor (8), and a driver (83) is fixedly connected to one side of the heat dissipation fin (82); The transport mechanism (4) comprises a support leg (41), wherein the support leg (41) is fixedly connected to the upper side of the base frame (1), a first electric slide rail (42) is fixedly connected to one side of the support leg (41), a sliding end of the first electric slide rail (42) is fixedly connected to a second slide seat (43), a side of the second slide seat (43) is fixedly connected to a fixed frame (45), a side of the fixed frame (45) is fixedly connected to a first hydraulic cylinder (44), an output end of the first hydraulic cylinder (44) passes through the fixed frame (45) and is fixedly connected to a double-axis hydraulic cylinder (46), and both output ends of the double-axis hydraulic cylinder (46) are fixedly connected to clamping claws (47); The spraying mechanism (6) comprises a second electric slide rail (61), the second electric slide rail (61) is fixedly connected to the upper side of the base frame (1), the sliding end of the second electric slide rail (61) is fixedly connected to a third slide seat (62), the upper side of the third slide seat (62) is fixedly connected to a third electric slide rail (65), and the sliding end of the third electric slide rail (65) is fixedly connected to a fourth slide seat (64); A spray adjustment assembly (63) is provided on one side of the fourth slide seat (64), a connecting rod (67) is fixedly connected to the upper side of the fourth slide seat (64), and a hole-blocking spray assembly (66) is provided on the other end of the connecting rod (67).

2. The spraying treatment device for the surface of a stepper motor housing according to claim 1, characterized in that: The injection adjustment assembly (63) comprises a second rotating motor (631), the second rotating motor (631) being fixedly connected to one side of a fourth slide seat (64), the output end of the second rotating motor (631) being fixedly connected to a turntable, and one side of the turntable being fixedly connected to a first small-head injection unit (632), a large injection head (633), and a second small-head injection unit (634) in sequence from top to bottom.

3. The spraying treatment device for the surface of the stepping motor housing according to claim 2 is characterized in that: The first small head injection unit (632) and the second small head injection unit (634) have the same structure. The first small head injection unit (632) comprises a second hydraulic cylinder (6324). The second hydraulic cylinder (6324) is fixedly connected to one side of the turntable. The output end of the second hydraulic cylinder (6324) is fixedly connected to a connecting rod (6323). One side of the connecting rod (6323) is fixedly connected to a micro motor (6322). The output end of the micro motor (6322) passes through the side wall of the connecting rod (6323) and is fixedly connected to the small injection head (6321).

4. The spraying treatment device for the surface of a stepper motor housing according to claim 1, characterized in that: The hole plugging spray assembly (66) comprises a paint collecting tray (661), the paint collecting tray (661) being fixedly connected to the other end of the connecting rod (67), and a plurality of annular spray heads (663) being evenly fixedly connected to the lower side of the paint collecting tray (661).

5. The spraying treatment device for the surface of the stepping motor housing according to claim 4 is characterized in that: A paint storage chamber is provided inside the paint collecting tray (661); a blocking column (662) is fixedly connected to the outside of each annular spray head (663); an input end of each blocking column (662) is fixedly connected to a solenoid valve; and the input end of the solenoid valve is connected to the paint storage chamber pipeline of the paint collecting tray (661).

6. The spraying treatment device for the surface of the stepping motor housing according to claim 5 is characterized in that: The cleaning mechanism (7) comprises a third hydraulic cylinder (74), the third hydraulic cylinder (74) being fixedly connected to one side of the baffle (3), the output end of the third hydraulic cylinder (74) being fixedly connected to a collection box (72), and the upper side of the collection box (72) being fixedly connected to a cleaning tray (73).

7. The spraying treatment device for the surface of a stepper motor housing according to claim 6 is characterized in that: A plurality of through holes (71) are provided inside the cleaning disk (73), and inner walls of the through holes (71) are all fixedly connected with an annular scraper.

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