Motor casing inner wall spraying equipment

Abstract

The utility model relates to motor casing processing technical field, concretely relates to motor casing inner wall spraying equipment. Its including support platform main part is equipped with drive motor support frame in support platform main part top, drive motor support frame inner wall has three claw grab through bearing rotation and is connected, three claw grab is used for clamping fixed motor casing, support platform main part top fixed connection has telescopic drive assembly, telescopic drive assembly end fixed connection has spraying assembly. Through the radial movement of the moving piece drive spray head, the distance between the spray head and the inner wall of the motor casing can be adjusted flexibly, effectively solving the problem of spraying adaptation caused by the variety of motor casing diameters, avoiding the problem of too thick or too thin coating, ensuring the uniformity and protection performance of the coating thickness, through the telescopic drive assembly and the three claw grab, the axial movement of the spraying assembly and the rotation of the motor casing are realized, the uniform spraying of the inner cavity can be completed at one time, and the process turnover time is reduced.

Description

Technical Field

[0001] This utility model relates to the field of motor housing processing technology, and more specifically, to a motor housing inner wall spraying equipment. Background Technology

[0002] During operation, the motor casing is affected by various environmental factors, such as humidity, acid and alkali corrosion, and oxidation. In order to improve the corrosion resistance, wear resistance and insulation performance of the motor casing and extend the service life of the motor, it is usually necessary to spray the motor casing. The inner wall of the motor casing also needs to be well protected by spray coating to prevent the internal metal surface from being corroded, and at the same time, it helps to improve the overall performance and safety of the motor.

[0003] The motor housing is manually or mechanically gripped and embedded into the tooling fixture. After it is fixed, the servo-driven telescopic spray gun smoothly extends into the inner cavity of the housing along the guide rail. With the uniform rotation of the tooling fixture, it performs a full-range uniform spraying operation on the inner wall.

[0004] Considering the diverse diameters of motor housings in existing internal spraying operations, existing spraying equipment struggles to precisely adapt to different sizes of motor housings. When the distance between the nozzle and the inner wall of the motor housing is too small, the amount of paint deposited per unit area is too large, easily leading to a coating thickness exceeding the expected standard and forming an excessively thick covering layer. Conversely, if the distance between the nozzle and the inner wall of the motor housing is too large, the paint will be excessively dispersed during transmission, resulting in insufficient paint reaching the inner wall of the motor housing, thus causing an excessively thin covering layer that cannot effectively perform its protective function. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned shortcomings and to provide a spraying device for the inner wall of a motor housing;

[0006] To achieve the above objectives, this utility model provides a motor housing inner wall spraying device, including a support platform body, a drive motor support frame is provided on the top of the support platform body, and a three-jaw gripper is rotatably connected to the inner wall of the drive motor support frame through a bearing, the three-jaw gripper being used to clamp and fix the motor housing.

[0007] The top of the support platform is fixedly connected to a telescopic drive assembly, and the end of the telescopic drive assembly is fixedly connected to a spraying assembly. The telescopic drive assembly is used to drive the spraying assembly to move along the axial direction of the motor housing.

[0008] The spraying assembly includes a movable component and a spray head. The movable component is used to drive the spray head to move in the radial direction to adjust the distance between the spray head and the inner wall of the motor housing.

[0009] The moving part moves the spray head radially, adjusts the spray head to a suitable spraying distance from the inner wall of the motor housing, and starts the spray head to spray paint. At the same time, the telescopic drive assembly drives the spraying assembly to reciprocate along the axial direction of the motor housing, and the three-jaw gripper drives the motor housing to rotate, achieving uniform spraying.

[0010] As a further improvement to this technical solution, the telescopic drive assembly includes a motor fixedly connected to the top of the support platform body, a threaded telescopic rod fixedly connected to the output end of the motor, a spraying assembly fixedly connected to the end of the threaded telescopic rod away from the motor, and the spraying assembly includes a connecting column fixed to the end of the threaded telescopic rod. A movable part is vertically arranged on the surface of the connecting column for driving the spray head to move axially along the motor housing.

[0011] After the motor starts, it drives the screw inside the threaded telescopic rod to rotate. Based on the threaded transmission principle, the threaded sleeve fitted on the outside of the threaded telescopic rod moves forward axially, thereby pushing the spraying assembly to move along the axial direction of the motor housing.

[0012] As a further improvement to this technical solution, the movable component includes a positioning rod fixedly connected to the surface of the connecting column, a movable frame slidably connected to the surface of the positioning rod, a connecting pipe fixedly connected to the inner wall of the movable frame, a nozzle fixedly connected to the top of the connecting pipe, an annular frame fixedly sleeved on the surface of the threaded telescopic rod, a limiting groove formed on the surface of the annular frame, the inner wall of the limiting groove contacting the surface of the hose, a plurality of positioning holes spaced apart along the length direction on the surface of the positioning rod, the movable frame slidingly engaging with the positioning rod and having a slot with the same diameter as the positioning holes, pins inserted into the positioning holes and the inner wall of the slots for fixing the movable frame to the set position of the positioning rod, and a hose fixedly connected to the end of the connecting pipe away from the nozzle.

[0013] The movable frame is pushed to slide along the surface of the positioning rod, causing the connecting pipe and the nozzle to move synchronously. The nozzle is adjusted to a suitable spraying distance from the inner wall of the motor housing. When the movable frame reaches the target position, the positioning hole on the surface of the positioning rod is aligned with the slot on the surface of the movable frame. The movable frame is fixed on the positioning rod by inserting the pin into the inner wall of the positioning hole and the slot.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] In this motor housing inner wall spraying equipment, the spray head is driven to move radially by a moving component, which can flexibly adjust the distance between the spray head and the inner wall of the motor housing. This effectively solves the spraying adaptation problem caused by the variety of motor housing diameters, avoids the problem of coating being too thick or too thin, and ensures the uniformity of coating thickness and protective performance. Through the telescopic drive component and the three-jaw gripper, the axial movement of the spraying component and the rotation of the motor housing are realized. The inner cavity can be uniformly sprayed in all directions with one clamping, reducing the process turnaround time. Attached Figure Description

[0016] Fig. 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Fig. 2 This is a schematic diagram of the threaded telescopic rod structure of this utility model;

[0018] Fig. 3 This is a schematic diagram of the moving part structure of this utility model.

[0019] The meanings of the labels in the diagram are as follows:

[0020] 1. Support platform body; 10. Drive motor support frame; 11. Three-jaw gripper; 12. Motor housing;

[0021] 2. Telescopic drive assembly; 21. Motor; 22. Threaded telescopic rod; 23. Ring frame; 230. Limiting groove;

[0022] 3. Spraying assembly; 31. Connecting column; 32. Moving part; 320. Positioning rod; 321. Positioning hole; 322. Moving frame; 323. Pin; 33. Connecting pipe; 34. Spray nozzle; 35. Hose. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figs. 1-3 As shown, this embodiment provides a motor housing inner wall spraying equipment, including a support platform body 1, a drive motor support frame 10 is provided on the top of the support platform body 1, and a three-jaw gripper 11 is rotatably connected to the inner wall of the drive motor support frame 10 through a bearing. The three-jaw gripper 11 is used to clamp and fix the motor housing 12.

[0026] The top of the support platform body 1 is fixedly connected to a telescopic drive assembly 2, and the end of the telescopic drive assembly 2 is fixedly connected to a spraying assembly 3. The telescopic drive assembly 2 is used to drive the spraying assembly 3 to move along the axial direction of the motor housing 12.

[0027] The spraying assembly 3 includes a movable part 32 and a nozzle 34. The movable part 32 is used to drive the nozzle 34 to move in the radial direction to adjust the distance between the nozzle 34 and the inner wall of the motor housing 12.

[0028] The motor housing 12 is placed inside the three-jaw gripper 11. Driven by the drive motor support frame 10, the three-jaw gripper 11 rotates and retracts through the bearing to clamp the motor housing 12, ensuring that it is in a fixed and rotatable state. The moving part 32 moves the spray head 34 in the radial direction and adjusts the spray head 34 to a suitable spraying distance from the inner wall of the motor housing 12. The spray head 34 is started to spray paint. At the same time, the telescopic drive assembly 2 drives the spraying assembly 3 to reciprocate along the axial direction of the motor housing 12. The three-jaw gripper 11 drives the motor housing 12 to rotate, achieving uniform spraying.

[0029] The improvement in this embodiment is as follows:

[0030] Considering the diverse diameters of motor housings 12 in existing spraying operations, existing spraying equipment struggles to precisely adapt to different sizes of motor housings 12. When the distance between the nozzle 34 and the inner wall of the motor housing 12 is too small, the amount of paint deposited per unit area is excessive, easily leading to a coating thickness exceeding the expected standard and forming an overly thick cover layer. Conversely, if the distance between the nozzle 34 and the inner wall of the motor housing 12 is too large, the paint will be excessively dispersed during transport, resulting in insufficient paint reaching the inner wall of the motor housing 12, thus leading to an insufficient cover layer. If the coating is too thin, it cannot effectively play its protective role. Therefore, by driving the nozzle 34 to move radially through the moving part 32, the distance between the nozzle 34 and the inner wall of the motor housing 12 can be flexibly adjusted, which effectively solves the problem of coating adaptation caused by the variety of diameter specifications of the motor housing 12, avoids the problem of coating being too thick or too thin, and ensures the uniformity of coating thickness and protective performance. Through the telescopic drive component 2 and the three-jaw gripper 11, the axial movement of the spraying component 3 and the rotation of the motor housing 12 are realized. The inner cavity can be uniformly sprayed in one clamping, reducing the process turnaround time.

[0031] In order for the telescopic drive assembly 2 to drive the spraying assembly 3 to move, it is necessary to further disclose the parts of the telescopic drive assembly 2. Therefore, the telescopic drive assembly 2 includes a motor 21 fixedly connected to the top of the support platform body 1. A threaded telescopic rod 22 is fixedly connected to the output end of the motor 21. The spraying assembly 3 is fixedly connected to the end of the threaded telescopic rod 22 away from the motor 21. After the motor 21 is started, it drives the screw inside the threaded telescopic rod 22 to rotate. Based on the thread transmission principle, the screw sleeve sleeved on the outside of the threaded telescopic rod 22 moves forward axially, thereby pushing the spraying assembly 3 to move along the axial direction of the motor housing 12.

[0032] In order to enable the movable part 32 to move the nozzle 34, it is necessary to further disclose the parts of the spraying assembly 3. Therefore, the spraying assembly 3 includes a connecting post 31 fixed to the end of the threaded telescopic rod 22. The movable part 32 is arranged vertically on the surface of the connecting post 31 for driving the nozzle 34 to move axially along the motor housing 12. When the spraying assembly 3 moves axially along the motor housing 12, the nozzle 34 extends into the inner cavity of the motor housing 12. At the same time, the movable part 32 drives the nozzle 34 to move radially.

[0033] In order to adjust the distance between the nozzle 34 and the inner wall of the motor housing 12, the movable component 32 includes a positioning rod 320 fixedly connected to the surface of the connecting column 31. A movable frame 322 is slidably connected to the surface of the positioning rod 320. A connecting pipe 33 is fixedly connected to the inner wall of the movable frame 322. The nozzle 34 is fixedly connected to the top of the connecting pipe 33. The operator manually pushes the movable frame 322 to slide along the surface of the positioning rod 320, which drives the connecting pipe 33 and the nozzle 34 to move synchronously, adjusting the nozzle 34 to a suitable spraying distance from the inner wall of the motor housing 12.

[0034] In order to fix the movable frame 322 to the surface of the positioning rod 320 after the movable frame 322 is in a suitable position, the surface of the positioning rod 320 is provided with a plurality of positioning holes 321 spaced apart along the length direction. The movable frame 322 is slidably engaged with the positioning rod 320 and is provided with a slot with the same diameter as the positioning hole 321. The positioning hole 321 and the inner wall of the slot are inserted with pins 323 for fixing the movable frame 322 to the set position of the positioning rod 320.

[0035] When the movable frame 322 reaches the target position, the positioning hole 321 on the surface of the positioning rod 320 is aligned with the slot on the surface of the movable frame 322. By inserting the pin 323 into the positioning hole 321 and the inner wall of the slot, the movable frame 322 is fixed on the positioning rod 320.

[0036] The end of the connecting pipe 33 away from the nozzle 34 is fixedly connected to a flexible hose 35;

[0037] In order to enable the nozzle 34 to move simultaneously with the threaded telescopic rod 22 when it moves within the motor housing 12, an annular frame 23 is fixedly fitted onto the surface of the threaded telescopic rod 22. A limiting groove 230 is formed on the surface of the annular frame 23, and the inner wall of the limiting groove 230 contacts the surface of the hose 35. Under the constraint of the limiting groove 230 of the annular frame 23, the hose 35 moves synchronously with the threaded telescopic rod 22, ensuring the stability of the paint supply pipeline and achieving uniform spraying.

[0038] In practical use, the motor housing inner wall spraying equipment of this utility model involves placing the motor housing 12 inside the three-jaw gripper 11. The drive motor support frame 10 drives the three-jaw gripper 11 to rotate and retract via the bearings, clamping the motor housing 12 to ensure it is in a stable and rotatable state. The operator manually pushes the moving frame 322 to slide it along the surface of the positioning rod 320, causing the connecting pipe 33 and the spray head 34 to move radially synchronously. When the spray head 34 reaches a suitable spraying distance from the inner wall of the motor housing 12, the groove on the surface of the moving frame 322 is aligned with the corresponding positioning hole 321 on the positioning rod 320, and the pin 323 is inserted to fix the moving frame 322. 22. After positioning the nozzle 34, start the motor 21. Its output end drives the internal screw of the threaded telescopic rod 22 to rotate. According to the thread transmission principle, the threaded sleeve fitted on the threaded telescopic rod 22 moves forward along the axial direction, pushing the spraying component 3 fixed at the end of the threaded telescopic rod 22 to move along the axial direction of the motor housing 12, so that the nozzle 34 extends into the inner cavity of the motor housing 12. Start the nozzle 34 to spray paint. The motor 21 continuously drives the screw of the threaded telescopic rod 22 to rotate, so that the spraying component 3 reciprocates along the axial direction of the motor housing 12. At the same time, the three-jaw gripper 11 drives the motor housing 12 to rotate, so as to achieve uniform spraying on the inner wall of the motor housing 12.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A spraying device for the inner wall of an electric motor housing, comprising a support platform (1), characterized in that: The top of the support platform body (1) is provided with a drive motor support frame (10), and the inner wall of the drive motor support frame (10) is rotatably connected to a three-jaw gripper (11) through a bearing. The three-jaw gripper (11) is used to clamp and fix the motor housing (12). The top of the support platform body (1) is fixedly connected to a telescopic drive assembly (2), and the end of the telescopic drive assembly (2) is fixedly connected to a spraying assembly (3). The telescopic drive assembly (2) is used to drive the spraying assembly (3) to move along the axial direction of the motor housing (12). The spraying assembly (3) includes a movable part (32) and a nozzle (34). The movable part (32) is used to drive the nozzle (34) to move in the radial direction to adjust the distance between the nozzle (34) and the inner wall of the motor housing (12).

2. The motor housing inner wall spraying equipment according to claim 1, characterized in that: The telescopic drive assembly (2) includes a motor (21) fixedly connected to the top of the support platform body (1), a threaded telescopic rod (22) fixedly connected to the output end of the motor (21), and a spraying assembly (3) fixedly connected to the end of the threaded telescopic rod (22) away from the motor (21).

3. The motor housing inner wall spraying equipment according to claim 2, characterized in that: The spraying assembly (3) includes a connecting post (31) fixed to the end of the threaded telescopic rod (22). A movable part (32) is provided on the surface of the connecting post (31) in the vertical direction for driving the spray head (34) to move axially along the motor housing (12).

4. The motor housing inner wall spraying equipment according to claim 3, characterized in that: The movable component (32) includes a positioning rod (320) fixedly connected to the surface of the connecting column (31), a movable frame (322) slidably connected to the surface of the positioning rod (320), a connecting pipe (33) fixedly connected to the inner wall of the movable frame (322), and a nozzle (34) fixedly connected to the top of the connecting pipe (33).

5. The motor housing inner wall spraying equipment according to claim 4, characterized in that: The positioning rod (320) has a plurality of positioning holes (321) spaced apart along its length. The inner wall of the movable frame (322) is slidably fitted with the surface of the positioning rod (320) and has a slot with the same diameter as the positioning holes (321). The positioning holes (321) and the inner wall of the slot are fitted with pins (323) for fixing the movable frame (322) to the set position of the positioning rod (320).

6. The motor housing inner wall spraying equipment according to claim 4, characterized in that: The end of the connecting pipe (33) away from the nozzle (34) is fixedly connected to a flexible hose (35).

7. The motor housing inner wall spraying equipment according to claim 6, characterized in that: The threaded telescopic rod (22) is fixedly sleeved with an annular frame (23), and a limiting groove (230) is opened on the surface of the annular frame (23). The inner wall of the limiting groove (230) is in contact with the surface of the hose (35).

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