Paint dripping device and paint dripping method

Abstract

The invention relates to the technical field of motor stator processing, and particularly discloses a paint dripping device and a paint dripping method. The paint dripping device comprises a rack, a clamping driving mechanism, a rotary paint conveying mechanism, a first paint dripping unit, a second paint dripping unit and an inclination adjusting mechanism. The clamping drive is used for clamping the stator and driving the stator to rotate around the axis of the stator. The output end of the inclination adjusting mechanism is in transmission connection with the rack, and the inclination adjusting mechanism is used for adjusting the inclination angle of the axis of the stator clamped by the clamping driving mechanism relative to the horizontal direction parallel to the ground; the rotary paint conveying mechanism comprises a fixed part fixed relative to the rack and a rotating part synchronously rotating with the clamping driving mechanism; a communicated fluid channel is arranged between the two; the paint dripping end of the first paint dripping unit and the paint dripping end of the second paint dripping unit can conduct paint dripping on the two sides of the stator respectively. According to the paint dripping device, the paint liquid conveying distance can be shortened, the paint dripping quality is ensured, the clamping driving mechanism is used for clamping and driving the stator to rotate, the paint dripping efficiency is improved, and the structure is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of motor stator processing, and particularly relates to a varnish dripping device and a varnish dripping method. BACKGROUND

[0002] Varnish dripping is an important process in the motor stator insulation process, and can improve the insulation performance, mechanical strength and corrosion resistance of the motor stator, and can also optimize the heat dissipation of the motor stator, thereby effectively prolonging the service life of the motor stator and the motor. In order to ensure the quality of varnish dripping, how to ensure that the varnish reliably flows into the motor stator winding and fills the entire winding space as much as possible is a difficulty that needs to be considered in the design of process equipment.

[0003] An existing varnish dripping scheme fixes one end of the motor stator, and drips varnish from the other end of the motor stator and flows into the winding during varnish dripping. This way can only drip varnish on the inner and outer sides of the non-driving end and the inner side of the driving end of the motor stator. Although this way is simple in mechanism driving and operation, it cannot ensure that the varnish fills the winding, and the effect is not good. Another existing varnish dripping way fixes both ends of the motor stator by using a two-end gear set driving fixing way, and drips varnish from both ends of the motor stator and penetrates into the winding during varnish dripping. However, this varnish dripping way is complex in structure and cumbersome in operation, and the varnish has to be transported over a long distance to reach the winding dripping position due to the complex structure, thereby causing fluctuations in the temperature and viscosity of the varnish, and further causing unstable varnish dripping quality.

[0004] Therefore, a varnish dripping device and a varnish dripping method are needed to solve the above problems. SUMMARY

[0005] The present application aims to provide a varnish dripping device to solve the related problems of unstable varnish dripping quality caused by fluctuations in the temperature and viscosity of the varnish due to the complex structure and cumbersome operation of the varnish dripping way in the related art.

[0006] In one aspect, the present application provides a varnish dripping device, which comprises:

[0007] a rack;

[0008] a clamping driving mechanism arranged on the rack and used for clamping a stator and driving the stator to rotate around its own axis;

[0009] a rotating varnish conveying mechanism connected to a rotating part of the clamping driving mechanism; the rotating varnish conveying mechanism comprises a fixed part fixed relative to the rack and a rotating part rotating synchronously with the clamping driving mechanism; a fluid channel in communication and a sealing assembly for sealing the fluid channel are arranged between the fixed part and the rotating part;

[0010] A first paint dripping unit is connected to the paint rotating mechanism, and a paint dripping end of the first paint dripping unit is located at a clamping side of the clamping driving mechanism;

[0011] A second paint dripping unit is connected to the machine frame, and a paint dripping end of the second paint dripping unit is located at the other side opposite to the clamping side of the clamping driving mechanism;

[0012] An inclination adjusting mechanism is drivingly connected to the machine frame, and is used to adjust an inclination angle of an axis of the stator clamped by the clamping driving mechanism relative to a horizontal direction parallel to the ground.

[0013] As an optional technical solution, the clamping driving mechanism comprises a rotating driving member and a clamping mechanism, the rotating part and the clamping mechanism are fixedly connected to an output shaft of the rotating driving member, the fixed part comprises a first floating block and a second floating block, the first floating block and the second floating block are both rotationally connected to an outer periphery of the rotating part, the first floating block and the second floating block are respectively arranged at two sides of a connection position between the clamping mechanism and the output shaft, the first floating block is arranged closer to the clamped stator than the second floating block, the first floating block is provided with a first channel, the rotating part is provided with a second channel, the second floating block is provided with a third channel, the first channel, the second channel and the third channel are sequentially communicated, the first channel is communicated with the paint dripping end of the first paint dripping unit, and the third channel is used to be connected to an external paint source.

[0014] As an optional technical solution, one end of the first floating block close to the ground is connected with a counterweight, and the counterweight is used to limit rotation of the first floating block around the output shaft.

[0015] As an optional technical solution, a limiting plate is connected between the second floating block and the machine frame, and the limiting plate is used to limit rotation of the second floating block around the output shaft.

[0016] As an optional technical solution, the first floating block or the rotating part is provided with a first annular channel, and the first annular channel communicates the first channel and the second channel;

[0017] And / or, the second floating block or the rotating part is provided with a second annular channel, and the second annular channel always communicates the third channel and the second channel.

[0018] As an optional technical solution, the sealing assembly is arranged between the first floating block and the rotating part and between the second floating block and the rotating part, and the sealing assembly comprises two sealing members which are arranged in an axial direction of the rotating part;

[0019] The inlet of the second channel and the second annular channel are located between two seals of the sealing assembly arranged correspondingly, and the outlet of the second channel and the first annular channel are located between two seals of the sealing assembly arranged correspondingly.

[0020] As an optional technical solution, one end of the rack is rotationally connected with an external fixing member around a preset horizontal axis, and an output end of the inclination adjusting mechanism is connected to the other end of the rack; the inclination adjusting mechanism can drive the rack to rotate around the preset horizontal axis relative to the external fixing member, and the preset horizontal axis is perpendicular to an axis of the stator clamped by the clamping driving mechanism.

[0021] As an optional technical solution, the paint dripping assembly further comprises a moving table, the moving table is adjustably arranged on the rack, and the second paint dripping structure and the second paint dripping unit are fixedly arranged on the moving table.

[0022] As an optional technical solution, the paint dripping device further comprises a feeding assembly, the feeding assembly comprises a lifting mechanism and a feeding seat for supporting the stator, the feeding seat is connected to an output end of the lifting mechanism, and the lifting mechanism is located below a clamping end of the clamping mechanism.

[0023] The lifting mechanism is used for driving the feeding seat to ascend and descend to send the stator on the feeding seat to a paint dripping station, and the clamping end of the clamping mechanism can clamp the stator located at the paint dripping station.

[0024] The paint dripping device provided by the present application at least has the following beneficial effects:

[0025] The paint dripping device comprises a rack, a clamping driving mechanism, a rotating paint conveying mechanism, a first paint dripping unit, a second paint dripping unit and an inclination adjusting mechanism. The clamping driving mechanism is arranged on the rack and used for clamping a stator and driving the stator to rotate around an axis thereof. The rotating paint conveying mechanism is connected to a rotating part of the clamping driving mechanism. The rotating paint conveying mechanism comprises a fixed part fixed relative to the rack and a rotating part rotating synchronously with the clamping driving mechanism. A fluid channel and a sealing assembly for sealing the fluid channel are arranged between the fixed part and the rotating part. The first paint dripping unit is connected to the rotating paint conveying mechanism, and a paint dripping end of the first paint dripping unit is located on a clamping side of the clamping driving mechanism. The second paint dripping unit is connected to the rack, and a paint dripping end of the second paint dripping unit is located on the other side opposite to the clamping side of the clamping driving mechanism. An output end of the inclination adjusting mechanism is in transmission connection with the rack, and used for adjusting an inclination angle of an axis of the stator clamped by the clamping driving mechanism relative to a horizontal direction parallel to the ground. When the paint dripping device drips paint, the rack is driven to move by the inclination adjusting mechanism, so as to adjust the inclination angle of the axis of the stator clamped by the clamping driving mechanism relative to the horizontal direction parallel to the ground. Therefore, it is ensured that paint can flow to the other side of the stator when the first paint dripping unit drips paint on one side of the stator, and it is ensured that paint can flow to one side of the stator when the second paint dripping unit drips paint on the other side of the stator. Therefore, paint dripping can be performed on both sides of the stator, so as to ensure that paint can penetrate into the winding from both sides of the stator and fill the internal space of the winding. Therefore, the paint dripping effect is improved. Only one clamping mechanism is arranged, so as to complete the paint dripping operation on both ends of the stator. The structure is simple, the operation is convenient, the paint dripping efficiency is high, and the effect is good. The rotating paint conveying mechanism is arranged, and the rotating paint conveying mechanism is directly connected to the rotating part of the clamping driving mechanism. Therefore, the paint conveying channel of the first paint dripping unit is shortened. Therefore, the temperature and viscosity of paint are prevented from fluctuating due to long-distance conveying of paint to the winding paint dripping position. The related problems of unstable paint dripping quality are avoided. The paint dripping effect and quality are ensured.

[0026] In another aspect, the present application provides a paint dripping method suitable for the paint dripping device in any of the above-mentioned solutions. The paint dripping method comprises the following steps.

[0027] Before the first paint dripping unit starts to drip paint, the inclination adjusting mechanism is controlled to drive the rack to move, so that the stator clamped by the clamping driving mechanism is in a positive angle state.

[0028] Before the second paint dripping unit starts to drip paint, the inclination adjusting mechanism is controlled to drive the rack to move, so that the stator clamped by the clamping driving mechanism is in a negative angle state.

[0029] Wherein, the stator being in a positive angle state means that the portion of the stator held by the clamping drive mechanism on the clamping side of the clamping drive mechanism is higher than the portion of the stator held by the clamping drive mechanism on the opposite side of ...

[0030] The paint dripping method provided by this invention has at least the following beneficial effects:

[0031] The paint dripping method provided by this invention can efficiently and conveniently drip paint from both sides of the stator, thereby ensuring that the paint can penetrate into the winding from both sides of the stator and fill its internal space, thus improving the paint dripping effect and achieving high paint dripping efficiency. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the paint dripping device in an embodiment of the present invention;

[0033] Figure 2 This is a partial structural diagram of the first paint-drip unit of the paint-drip device in an embodiment of the present invention;

[0034] Figure 3 for Figure 2 Sectional view at point AA.

[0035] In the picture:

[0036] 11. Frame; 12. Hinge mount;

[0037] 21. Output shaft; 22. Clamping mechanism; 221. Connecting plate; 222. Gripper unit;

[0038] 31. First paint dripping unit; 311. Rotating part; 3111. Second channel; 312. First floating block; 3121. First annular channel; 3122. First bearing; 3123. First channel; 313. Paint outlet pipe; 314. Counterweight; 315. Second floating block; 3151. Second annular channel; 3152. Sealing groove; 3153. Third channel; 3154. Second bearing; 316. Limiting plate; 32. Third paint dripping unit; 33. Second paint dripping unit; 331. Inner ring paint dripping structure; 332. Outer ring paint dripping structure; 34. Moving platform;

[0039] 41. Lifting mechanism; 42. Feeding seat;

[0040] 50. Tilting adjustment mechanism. Detailed Implementation

[0041] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0044] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0045] like Figures 1 to 3As shown, this embodiment provides a paint dripping device, which includes a frame 11, a clamping drive mechanism, a rotary paint conveying mechanism, a first paint dripping unit 31, a second paint dripping unit 33, and a tilting adjustment mechanism 50. The clamping drive mechanism is mounted on the frame 11 and is used to clamp the stator and drive it to rotate around its own axis. The rotary paint conveying mechanism is connected to the rotating part of the clamping drive mechanism. The rotary paint conveying mechanism includes a fixed part fixed relative to the frame 11 and a rotating part 311 that rotates synchronously with the clamping drive mechanism. The fixed part and the rotating part 311 are connected... A fluid channel is provided and a sealing assembly for sealing the fluid channel is provided; a first paint-drip unit 31 is connected to the rotary paint conveying mechanism, and the paint-drip end of the first paint-drip unit 31 is located on the clamping side of the clamping drive mechanism; a second paint-drip unit 33 is connected to the frame 11, and the paint-drip end of the second paint-drip unit 33 is located on the opposite side of the clamping side of the clamping drive mechanism; the output end of the tilt adjustment mechanism 50 is connected to the frame 11 for adjusting the tilt angle of the axis of the stator clamped by the clamping drive mechanism relative to the horizontal direction parallel to the ground.

[0046] Specifically, in this embodiment, such as Figure 1 As shown, the clamping drive mechanism is mounted on the frame 11. The tilt adjustment mechanism 50 adjusts the angle of the frame 11 relative to the horizontal direction parallel to the ground, thereby ensuring that the axis of the stator clamped by the clamping drive mechanism has the same tilt angle relative to the horizontal direction parallel to the ground. During paint dripping, the tilt adjustment mechanism 50 adjusts the movement of the frame 11, thereby adjusting the tilt angle of the axis of the stator clamped by the clamping drive mechanism relative to the horizontal direction parallel to the ground. This ensures that when the first paint dripping unit 31 drips paint onto one side of the stator, the paint can flow to the other side of the stator. At the same time, it ensures that when the second paint dripping unit 33 drips paint onto the other side of the stator, the paint can flow to one side of the stator. This allows paint to drip from both sides of the stator, ensuring that the paint can penetrate into the winding from both sides of the stator and fill its internal space, thus improving the paint dripping effect. Moreover, only one clamping mechanism 22 is needed to complete the paint dripping operation at both ends of the stator. The structure is simple, the operation is convenient, the paint dripping efficiency is high, and the effect is good. Furthermore, by setting up a rotary paint conveying mechanism, which is directly connected to the rotating part of the clamping drive mechanism, the paint delivery channel of the first paint drop unit 31 is shortened. This avoids the problem that the paint must be transported over a long distance to reach the winding paint drop position, which would cause fluctuations in paint temperature and viscosity and thus lead to unstable paint drop quality. This ensures the paint drop effect and paint drop quality.

[0047] Furthermore, such as Figure 1As shown, the clamping drive mechanism includes a rotating drive member and a clamping mechanism 22. The rotating part 311 and the clamping mechanism 22 are both fixedly connected to the output shaft 21 of the rotating drive member. The fixed part includes a first floating block 312 and a second floating block 315. The first floating block 312 and the second floating block 315 are both rotatably connected to the outer periphery of the rotating part 311. The first floating block 312 and the second floating block 315 are respectively disposed on both sides of the connection between the clamping mechanism 22 and the output shaft 21. The first floating block 312 is disposed closer to the clamped stator than the second floating block 315. The first floating block 312 is provided with a first channel 3123, the rotating part 311 is provided with a second channel 3111, and the second floating block 315 is provided with a third channel 3153. The first channel 3123, the second channel 3111, and the third channel 3153 are connected in sequence. The first channel 3123 is connected to the dripping end of the first dripping paint unit 31, and the third channel 3153 is used to connect to an external paint source.

[0048] Specifically, in this embodiment, the clamping drive mechanism can clamp the stator and drive it to rotate around its own axis. On the one hand, the output shaft 21 drives the clamping mechanism 22 to rotate during the paint dripping process, which in turn drives the stator to rotate. This allows the first paint dripping unit 31 to complete the paint dripping around the circumference of the stator with only one paint dripping nozzle, thereby avoiding the need for additional paint dripping devices, reducing the number of parts, and lowering the probability of failure. On the other hand, the clamping mechanism 22 is also connected to the output shaft 21, connecting the first paint dripping unit 31 to the output shaft 21. This effectively reduces the paint delivery distance of the first paint dripping unit 31 during paint dripping, thereby effectively reducing the fluctuation of paint temperature and viscosity during paint dripping, which is beneficial to improving the stability of paint dripping quality and ensuring the performance of the stator.

[0049] Specifically, in this embodiment, such as Figure 1 and Figure 2As shown, the rotating part 311 is fixedly mounted on the output shaft 21 of the rotation drive. When the output shaft 21 rotates, it drives the rotating part 311 to rotate synchronously. The clamping mechanism 22 is fixedly connected to the rotating part 311. Thus, when the output shaft 21 rotates, the stator clamped by the clamping mechanism 22 rotates synchronously with the output shaft 21. The first floating block 312 is located near the stator at the connection between the clamping mechanism 22 and the rotating part 311, so that the first floating block 312 is positioned closer to the stator than the clamping mechanism 22. The first floating block 312 is provided with a first channel 3123. The first paint dripping structure 31 also includes a paint outlet pipe 313, which is connected to the first... The outlet of channel 3123 is connected, allowing the paint outlet tube 313 of the first paint dripping unit 3131 to be located on the side of the clamping mechanism 22 close to the stator. This ensures convenient paint dripping, reduces the paint delivery distance, and improves paint dripping quality. At the same time, it avoids interference with paint dripping when the clamping mechanism 22 rotates, further improving paint dripping quality. Furthermore, the first floating block 312 is fixed relative to the frame 11, so when the output shaft 21 drives the stator to rotate, the outlet of the paint outlet tube 313 can always be aligned with the stator. With the paint outlet tube 313 fixed and the stator able to rotate, it ensures that the entire circle of the stator can be properly dripped, ensuring paint dripping quality.

[0050] Specifically, in this embodiment, as Figure 2 and Figure 3 As shown, the first floating block 312 is provided with a first channel 3123, the rotating part 311 is provided with a second channel 3111, and the second floating block 315 is provided with a third channel 3153. The first channel 3123, the second channel 3111, and the third channel 3153 are connected sequentially. The first channel 3123 is connected to the dripping end of the first paint dripping unit 31, and the third channel 3153 is used to connect to an external paint source. The first floating block 312 is fixed in position relative to the frame 11, thereby ensuring that the dripping end of the first paint dripping unit 31, which is connected to the first channel 3123, has a relatively stable position relative to the frame 11, thus ensuring the reliability of paint dripping onto the stator. At the same time, the second floating block 315 is fixed in position relative to the frame 11, thereby facilitating the connection of the third channel 3153 on the second floating block 315 to an external paint source, reducing the difficulty of setting up the external paint source, and ensuring the reliability of paint supply from the external paint source.

[0051] Optionally, a drip nozzle is provided at the outlet of the paint pipe 313 to ensure the dripping effect. The drip nozzle is existing technology and will not be described in detail here.

[0052] Optionally, in this embodiment, the rotation drive includes a drive motor and an output shaft 21, which are fixedly connected. Preferably, the speed range of the drive motor is 0-100n / min.

[0053] Preferably, in this embodiment, the first paint drop unit 31 and the second paint drop unit 33 are both adjustable-speed paint drop structures commonly used in the prior art, which will not be described in detail here. Moreover, the paint flow rate of the first paint drop unit 31 and the second paint drop unit 33 can be precisely adjusted within the range of 0-20ml / min, thereby achieving more precise paint distribution and ensuring uniform distribution of paint in the stator tank.

[0054] Furthermore, such as Figure 2 As shown, a counterweight 314 is connected to one end of the first floating block 312 near the ground. The counterweight 314 is used to limit the rotation of the first floating block 312 around the output shaft 21.

[0055] Specifically, in this embodiment, the first floating block 312 is rotatably connected to the output shaft 21 via the first bearing 3122, and a counterweight 314 is connected to the end of the first floating block 312 near the ground. The counterweight 314 can provide force to the first floating block 312, so that the inner ring of the first bearing 3122 rotates with the output shaft 21, while the outer ring of the first bearing 3122 remains stationary relative to the frame 11, which can ensure that the paint pipe 313 has a relatively stable setting position, thereby ensuring the normal operation of paint dripping.

[0056] Furthermore, such as Figure 2 As shown, a limiting plate 316 is connected between the second floating block 315 and the frame 11. The limiting plate 316 is used to limit the rotation of the second floating block 315 around the output shaft 21.

[0057] Specifically, in this embodiment, the second floating block 315 is rotatably mounted on the rotating part 311 via the second bearing 3154. In order to facilitate the connection between the external paint source and the third channel 3153, a limiting plate 316 is provided between the frame 11 and the second floating block 315. One end of the limiting plate 316 is fixedly connected to the frame 11, and the other end is connected to the second floating block 315. This can restrict the rotation of the second floating block 315 around the output shaft 21, so that the position of the second floating block 315 relative to the frame 11 is fixed, thereby facilitating the connection with the external paint source and ensuring the effectiveness and convenience of paint input.

[0058] Furthermore, such as Figure 2 and Figure 3 As shown, a first annular channel 3121 is provided between the first floating block 312 and the rotating part 311, and the first annular channel 3121 connects the first channel 3123 and the second channel 3111; a second annular channel 3151 is provided between the second floating block 315 and the rotating part 311, and the second annular channel 3151 is always connected to the third channel 3153 and the second channel 3111.

[0059] Specifically, in this embodiment, a first annular groove is provided on the first floating block 312, and the first annular groove and the outer peripheral surface of the rotating part 311 form a first annular channel 3121 that communicates with the first channel 3123. The first annular channel 3121 is also connected to the second channel 3111. A second annular groove is provided on the second floating block 315, and the second annular groove and the outer peripheral surface of the rotating part 311 form a second annular channel 3151 that communicates with the third channel 3153. The second annular channel 3151 is also connected to the second channel 3111. During the rotation of the rotating part 311, both the first floating block 312 and the second floating block 315 are fixed in position relative to the frame 11. The two ends of the second channel 3111 are always connected to the first annular channel 3121 and the second annular channel 3151, respectively, thereby ensuring the continuity of paint delivery. The third channel 3153 is connected to an external paint source, and the first channel 3123 is connected to the paint outlet pipe 313. This arrangement ensures that when the paint is dripping, the paint will first fill the second annular channel 3151 on the second floating block 315 and then flow into the second channel 3111 on the rotating block. Then it will fill the first annular channel 3121 on the first floating block 312 and then flow out from the first channel 3123. This will improve the uniformity of the paint and further ensure the dripping effect.

[0060] Alternatively, in another embodiment, both the first annular groove and the second annular groove may be provided in the rotating part 311, which will not be described in detail here.

[0061] Furthermore, such as Figure 2 As shown, sealing assemblies are provided between the first floating block 312 and the rotating part 311, and between the second floating block 315 and the rotating part 311. The sealing assembly includes two sealing elements spaced apart along the axial direction of the rotating part 311. The inlet of the second channel 3111 and the second annular channel 3151 are both located between the two sealing elements of the corresponding sealing assembly. The outlet of the second channel 3111 and the first annular channel 3121 are both located between the two sealing elements of the corresponding sealing assembly.

[0062] Specifically, in this embodiment, the inner wall of the first floating block 312 is provided with two circumferential sealing grooves 3152. The two sealing grooves 3152 are located on both sides of the first channel 3123. Each sealing groove 3152 is provided with a sealing element, and both sealing elements abut against the outer peripheral surface of the rotating part 311. The outlet of the second channel 3111 and the first annular channel 3121 are both located between the two sealing elements. By setting the outlet of the second channel 3111 and the first annular channel 3121 to be located between the two sealing elements, paint leakage from the gap between the first floating block 312 and the rotating part 311 can be avoided, thereby saving paint and ensuring a dripping effect.

[0063] Specifically, in this embodiment, the inner wall of the second floating block 315 is also provided with two sealing grooves 3152 extending circumferentially. The two sealing grooves 3152 are located on both sides of the third channel 3152, and each sealing groove 3152 is provided with a sealing element. Both sealing elements abut against the outer peripheral surface of the rotating part 311, and the inlet of the second channel 3111 and the second annular channel 3141 are both located between the two sealing elements. By setting the inlet of the second channel 3111 and the second annular channel 3141 to be located between the two sealing elements, it is possible to prevent paint from leaking from the gap between the second floating block 315 and the rotating part 311, thereby saving paint and ensuring a dripping effect.

[0064] Alternatively, in another embodiment, the sealing groove 3152 can be formed on the rotating part 311, or the sealing groove 3152 can be formed on both the rotating part 311 and the second floating block 315, and the sealing groove 3152 can be formed on both the rotating part 311 and the first floating block 312. All of these can achieve the above-mentioned technical effects, which will not be elaborated here.

[0065] Furthermore, such as Figure 1 As shown, one end of the frame 11 is rotatably connected to an external fixing component around a preset horizontal axis, and the output end of the tilt adjustment mechanism 50 is connected to the other end of the frame 11. The tilt adjustment mechanism 50 can drive the frame 11 to rotate relative to the external fixing component around a preset horizontal axis, and the preset horizontal axis is perpendicular to the axis of the stator held by the clamping drive mechanism.

[0066] Specifically, in this embodiment, one end of the frame 11 is rotatably connected to an external fixing component via a hinge seat 12, and the other end of the frame 11 is rotatably connected to the output end of the tilt adjustment mechanism 50. The fixed end of the tilt adjustment mechanism 50 is fixedly set, and the output end of the tilt adjustment mechanism 50 extends and retracts relative to the fixed end, which can drive the frame 11 to rotate relative to the hinge axis of the hinge seat 12, thereby adjusting the angle of the frame 11 relative to the hinge axis. The structure is simple, the adjustment is convenient, and the effect is good.

[0067] Optionally, in this embodiment, the tilt adjustment mechanism 50 is a hydraulic cylinder. When the telescopic rod of the tilt adjustment mechanism 50 extends or retracts, it can drive the frame 11 to have an angle of -20° to 20° relative to the preset horizontal axis. No specific limitation is made here.

[0068] Furthermore, such as Figure 1 As shown, the paint dripping assembly also includes a moving stage 34, which is tunably mounted on the frame 11, and the second paint dripping unit 33 is fixedly mounted on the moving stage 34.

[0069] Specifically, in this embodiment, one of the frame 11 and the moving platform 34 is provided with a slide rail, and the other is provided with a slider. The slide rail and the slider slide together, thereby allowing the moving platform 34 to be adjusted in position on the frame 11. The second paint-drip unit 33 is fixedly mounted on the moving platform 34, which facilitates the adjustment of the position of the second paint-drip unit 33 and improves the ease of use.

[0070] Specifically, in this embodiment, the third paint dripping structure 33 includes an inner ring paint dripping structure 331 and an outer ring paint dripping structure 332. Both the inner ring paint dripping structure 331 and the outer ring paint dripping structure 332 are disposed on the moving stage 34, and both the inner ring paint dripping structure 331 and the outer ring paint dripping structure 332 include a pipeline and a paint dripping nozzle. The pipeline and the paint dripping nozzle are existing technologies and will not be described in detail here.

[0071] Optionally, in this embodiment, the first paint-drip unit 31 is used to drip paint onto the outer ring of the stator on one side. To ensure that paint is dripped onto the inner ring of the stator clamped on the clamping side of the clamping drive mechanism, a third paint-drip unit 32 is also included. The third paint-drip unit is fixedly mounted on the moving stage 34. Since the paint-drip end of the third paint-drip unit 32 passes through the through hole in the middle of the stator, the paint-drip end of the third paint-drip unit 32 is located on the side of the stator axially close to the rotating drive member clamped by the clamping mechanism 22. Therefore, during the stator clamping process, the moving stage 34 is moved away from the clamping mechanism 22 to avoid the third paint-drip unit 32 affecting the normal picking and placing of the stator. When dripping paint, the moving stage 34 is moved closer to the clamping mechanism 22 until the paint-drip end of the third paint-drip unit 32 is located at a preset position, thereby ensuring that paint can be dripped normally on both sides of the stator. This will not be elaborated further here.

[0072] Alternatively, in another embodiment, paint can also be supplied to the third paint drop unit 32 by rotating the paint supply mechanism, without any specific limitation.

[0073] Furthermore, such as Figure 1 As shown, the paint dripping device also includes a feeding assembly, which includes a lifting mechanism 41 and a feeding seat 42 for supporting the stator. The feeding seat 42 is connected to the output end of the lifting mechanism 41, and the lifting mechanism 41 is located below the clamping end of the clamping mechanism 22. The lifting mechanism 41 is used to drive the feeding seat 42 to lift and lower to send the stator on the feeding seat 42 to the paint dripping station. The clamping end of the clamping mechanism 22 can clamp the stator located at the paint dripping station.

[0074] Specifically, in this embodiment, the feeding assembly includes a lifting mechanism 41 and a feeding seat 42. The lifting mechanism 41 is located below the clamping mechanism 22, and the feeding seat 42 is connected to the output end of the lifting mechanism 41. The lifting mechanism 41 can drive the feeding seat 42 to rise and fall, allowing the feeding seat 42 to switch between the paint dripping station and the original station. During paint dripping, the stator to be dripped is placed on the feeding seat 42. The lifting mechanism 41 drives the feeding seat 42 to rise to the paint dripping station. After the clamping mechanism 22 clamps the stator on the feeding seat 42, the lifting mechanism 41 drives the feeding seat 42 to fall back to the original station. After the paint dripping is completed, the lifting mechanism 41 drives the feeding seat 42 to rise to the paint dripping station. The clamping mechanism 22 releases the stator after the paint dripping is completed, and the lifting mechanism 41 drives the feeding seat 42 to fall back to the original station, making it convenient for the operator to remove the stator after the paint dripping is completed. This straight-up-down feeding method has high feeding efficiency and can avoid interference between the clamping mechanism 22 and the stator during the loading and unloading process, thus improving the safety performance during the paint dripping process.

[0075] Optionally, in this embodiment, the clamping mechanism 22 connects the plate 221 and the gripper unit 222. The connecting plate 221 is fixedly sleeved on the outer periphery of the rotating part 311. The gripper unit 222 includes two opposing clamps, both of which have a "V" shaped structure, thus enabling it to be applicable to stators of various diameters and improving the application range and versatility of the paint dripping device.

[0076] Preferably, in this embodiment, the clamping mechanism 22 is compatible with stators with a diameter range of 80mm-450mm, and no specific limitation is made here.

[0077] Optionally, in this embodiment, the feeding seat 42 includes two spaced-apart limiting blocks with limiting grooves. The distance between the two limiting blocks is greater than the width of the clamping mechanism 22, which facilitates the clamping mechanism 22 in clamping the stator and improves the convenience of use.

[0078] This embodiment also provides a paint dripping method applicable to the above-mentioned paint dripping device, the paint dripping method comprising:

[0079] Before the first paint-drip unit 31 starts dripping paint, the tilt adjustment mechanism 50 drives the frame 11 to move, so that the stator held by the clamping drive mechanism is in a positive angle state; before the second paint-drip unit 33 starts dripping paint, the tilt adjustment mechanism 50 drives the frame 11 to move, so that the stator held by the clamping drive mechanism is in a negative angle state; wherein, the stator is in a positive angle state when the height of the part of the stator held by the clamping drive mechanism on the clamping side of the clamping drive mechanism from the ground is greater than the height of the part of the stator held by the clamping drive mechanism on the opposite side of the clamping side of the clamping drive mechanism from the ground; the stator is in a negative angle state when the height of the part of the stator held by the clamping drive mechanism on the clamping side of the clamping drive mechanism from the ground is less than the height of the part of the stator held by the clamping drive mechanism on the opposite side of the clamping side of the clamping drive mechanism from the ground. This varnish-drip method allows for efficient and convenient varnish dripping from both sides of the stator, ensuring that the varnish can penetrate into the winding from both sides of the stator and fill its internal space, thereby improving the varnish-drip effect and achieving high varnish-drip efficiency.

[0080] Specifically, in this embodiment, before controlling the first paint-drip unit 31 to start dripping paint, controlling the tilt adjustment mechanism 50 to drive the frame 11 to rotate, so that the stator held by the clamping end of the clamping mechanism 22 is in a positive angle state, specifically includes: controlling the output end of the tilt adjustment mechanism 50 to extend, driving the frame 11 to rotate, so that the other end of the frame 11 is raised, causing the stator held by the clamping end of the clamping mechanism 22 to be in a positive angle state; controlling the rotation drive to drive the clamping mechanism 22 to drive the stator to rotate, controlling the first paint-drip unit 31 and the third paint-drip unit 32 to drip paint synchronously, and after the first paint-drip unit 31 and the third paint-drip unit 32 stop dripping paint, controlling the tilt adjustment mechanism 50 to drive the frame 11 to rotate, so that the central axis of the stator is horizontal.

[0081] Optionally, in this embodiment, the output end of the tilt adjustment mechanism 50 extends so that the angle of the frame 11 is +5°, and the first paint dripping unit 31 and the third paint dripping unit 32 drip paint at a flow rate of 6 ml / min for 130 seconds.

[0082] After the central axis of the stator is horizontal, it also includes: the output shaft 21 of the rotation drive rotates at a speed of 30n / min to shake the paint liquid evenly, thereby improving the uniformity of the paint dripping and improving the paint dripping effect.

[0083] Specifically, 6 ml / min, 130 s, and 30 n / min are empirical values ​​derived from experiments and are not limited here.

[0084] Specifically, in this embodiment, before controlling the second paint-drip unit 33 to start dripping paint, controlling the tilt adjustment mechanism 50 to drive the frame 11 to rotate, so that the stator held by the clamping end of the clamping mechanism 22 is in a negative angle state, specifically includes: controlling the output end of the tilt adjustment mechanism 50 to retract, driving the frame 11 to rotate, so that the other end of the frame 11 descends, causing the stator held by the clamping end of the clamping mechanism 22 to be in a negative angle state; controlling the rotation drive to drive the clamping mechanism 22 to drive the stator to rotate, controlling the second paint-drip unit 33 to drip paint, and after the second paint-drip unit 33 stops dripping paint, controlling the tilt adjustment mechanism 50 to drive the frame 11 to rotate, so that the central axis of the stator is horizontal.

[0085] Optionally, in this embodiment, the output end of the tilt adjustment mechanism 50 retracts, so that the angle of the frame 11 is -5°, and the first dripping paint unit 31 and the third dripping paint unit 32 drip paint at a flow rate of 3ml / min for 200s.

[0086] After the central axis of the stator is horizontal, the output shaft 21 of the rotation drive is rotated at a speed of 40n / min to shake the paint liquid evenly, thereby improving the uniformity of the paint dripping and improving the paint dripping effect.

[0087] Specifically, 3 ml / min, 200 s, and 40 n / min are empirical values ​​derived from experiments and are not limited here.

[0088] Optionally, in this embodiment, the frame 11 can be positioned at a positive angle first, and paint can be applied to the end of the stator near the rotating drive component. Then, the frame 11 can be positioned at a negative angle, and paint can be applied to the end of the stator away from the rotating drive component. Alternatively, the frame 11 can be positioned at a negative angle first, and paint can be applied to the end of the stator away from the rotating drive component. Then, the frame 11 can be positioned at a positive angle, and paint can be applied to the end of the stator near the rotating drive component. No specific limitation is made here.

[0089] Furthermore, before the paint dripping process, there is a step: stator feeding.

[0090] Specifically, in this embodiment, stator feeding includes: placing the stator to be dripped onto the feeding seat 42 located at the original station, controlling the lifting mechanism 41 to drive the feeding seat 42 to rise to the dripping station, controlling the clamping mechanism 22 to clamp the stator, and controlling the lifting mechanism 41 to drive the feeding seat 42 to reset.

[0091] Furthermore, before stator feeding, the following steps are performed: determining the position of the moving stage 34; if the moving stage 34 is in the initial position, stator feeding is performed; if the moving stage 34 is in the paint dripping position, the moving stage 34 is moved back to the initial position before stator feeding is performed. This avoids interference from the third paint dripping unit 32 on stator feeding, ensuring normal stator feeding.

[0092] Furthermore, after the paint dripping is completed, the following steps are also included: stator blanking.

[0093] Specifically, in this embodiment, after the stator is coated, the lifting mechanism 41 is controlled to raise the feeding seat 42 to the coating station, the clamping mechanism 22 is controlled to release the stator, and the lifting mechanism 41 is controlled to reset the feeding seat 42 and remove the stator after coating is completed.

[0094] The above description is merely a preferred embodiment of the present invention and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of disclosure in this invention is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-disclosed concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this invention.

Claims

1. A paint dripping device, characterized in that, include: Rack (11); A clamping drive mechanism is disposed on the frame (11) for clamping the stator and driving the stator to rotate around its own axis; A rotary paint supply mechanism is connected to the rotating part (311) of the clamping drive mechanism; the rotary paint supply mechanism includes a fixed part fixed relative to the frame (11) and a rotating part (311) that rotates synchronously with the clamping drive mechanism; a fluid channel and a sealing assembly for sealing the fluid channel are provided between the fixed part and the rotating part (311); The first paint-dropping unit (31) is connected to the rotary paint-feeding mechanism, and the paint-dropping end of the first paint-dropping unit (31) is located on the clamping side of the clamping drive mechanism. The second paint-drip unit (33) is connected to the frame (11), and the paint-drip end of the second paint-drip unit (33) is located on the opposite side of the clamping side of the clamping drive mechanism. The tilt adjustment mechanism (50) is connected to the frame (11) via a transmission connection and is used to adjust the tilt angle of the axis of the stator held by the clamping drive mechanism relative to the horizontal direction parallel to the ground.

2. The paint dripping device according to claim 1, characterized in that, The clamping drive mechanism includes a rotating drive component and a clamping mechanism (22). The rotating part (311) and the clamping mechanism (22) are both fixedly connected to the output shaft (21) of the rotating drive component. The fixed part includes a first floating block (312) and a second floating block (315). The first floating block (312) and the second floating block (315) are both rotatably connected to the outer periphery of the rotating part (311). The first floating block (312) and the second floating block (315) are respectively disposed on both sides of the connection between the clamping mechanism (22) and the output shaft (21). The floating block (312) is positioned closer to the clamped stator than the second floating block (315). The first floating block (312) is provided with a first channel (3123), the rotating part (311) is provided with a second channel (3111), and the second floating block (315) is provided with a third channel (3153). The first channel (3123), the second channel (3111), and the third channel (3153) are connected in sequence. The first channel (3123) is connected to the dripping end of the first dripping unit (31), and the third channel (3153) is used to connect to an external paint source.

3. The paint dripping device according to claim 2, characterized in that, The first floating block (312) is connected to a counterweight (314) at one end near the ground. The counterweight (314) is used to limit the rotation of the first floating block (312) around the output shaft (21).

4. The paint dripping device according to claim 2, characterized in that, A limiting plate (316) is connected between the second floating block (315) and the frame (11), the limiting plate (316) being used to restrict the rotation of the second floating block (315) around the output shaft (21).

5. The paint dripping device according to claim 2, characterized in that, A first annular channel (3121) is provided between the first floating block (312) and the rotating part (311), and the first annular channel (3121) connects the first channel (3123) and the second channel (3111). And / or, a second annular channel (3151) is provided between the second floating block (315) and the rotating part (311), the second annular channel (3151) connecting the third channel (3153) and the second channel (3111).

6. The paint dripping device according to claim 5, characterized in that, The sealing assembly is provided between the first floating block (312) and the rotating part (311) and between the second floating block (315) and the rotating part (311). The sealing assembly includes two sealing elements spaced apart along the axial direction of the rotating part (311). The inlet of the second channel (3111) and the second annular channel (3151) are both located between the two seals of the corresponding sealing assembly, and the outlet of the second channel (3111) and the first annular channel (3121) are both located between the two seals of the corresponding sealing assembly.

7. The paint dripping device according to any one of claims 1-6, characterized in that, One end of the frame (11) is rotatably connected to an external fixing member around a preset horizontal axis, and the output end of the tilt adjustment mechanism (50) is connected to the other end of the frame (11); the tilt adjustment mechanism (50) can drive the frame (11) to rotate relative to the external fixing member around the preset horizontal axis, and the preset horizontal axis is perpendicular to the axis of the stator held by the clamping drive mechanism.

8. The paint dripping device according to any one of claims 1-6, characterized in that, The paint dripping assembly also includes a moving platform (34), which is tunably mounted on the frame (11), and the second paint dripping unit (33) is fixedly mounted on the moving platform (34).

9. The paint dripping device according to claim 8, characterized in that, The paint dripping device also includes a feeding assembly, which includes a lifting mechanism (41) and a feeding seat (42) for supporting the stator. The feeding seat (42) is connected to the output end of the lifting mechanism (41), and the lifting mechanism (41) is located below the clamping end of the clamping mechanism (22). The lifting mechanism (41) is used to drive the feeding seat (42) to lift and lower to send the stator on the feeding seat (42) to the paint dripping station. The clamping end of the clamping mechanism (22) can clamp the stator located at the paint dripping station.

10. A method for dripping paint, characterized in that, The paint dripping apparatus according to any one of claims 1-9, the paint dripping method comprising: Before the first paint-drip unit (31) starts dripping paint, the tilt adjustment mechanism (50) is controlled to drive the frame (11) to move, so that the stator held by the clamping drive mechanism is in a positive angle state. Before the second paint-drip unit (33) starts dripping paint, the tilt adjustment mechanism (50) is controlled to drive the frame (11) to move, so that the stator held by the clamping drive mechanism is in a negative angle state; Wherein, the stator is in a positive angle state when the height of the portion of the stator held by the clamping drive mechanism on the clamping side of the clamping drive mechanism from the ground is greater than the height of the portion of the stator held by the clamping drive mechanism on the opposite side of the clamping side of the clamping drive mechanism from the ground; the stator is in a negative angle state when the height of the portion of the stator held by the clamping drive mechanism on the clamping side of the clamping drive mechanism from the ground is less than the height of the portion of the stator held by the clamping drive mechanism on the opposite side of the clamping side of the clamping drive mechanism from the ground.

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