Vacuum suction device for trickling paint of flat wire motor

Abstract

A flat wire motor paint dripping vacuum suction device comprises an upper fixing mechanism and a lower fixing mechanism which are coaxially arranged, the upper fixing mechanism comprises a first rotating shaft and a resin guiding piece connected to the first rotating shaft in a sleeving mode, and the lower fixing mechanism comprises a stator base connected with the resin guiding piece and a second rotating shaft connected to the stator base. A through hole for vacuumizing the interiors of the upper fixing mechanism and the lower fixing mechanism is formed in the second rotating shaft; compared with the prior art, a vacuum environment is formed in the upper fixing mechanism and the lower fixing mechanism, then the insulating resin is added into the upper fixing mechanism, and the insulating resin is guided to the stator flat wire under the action of the resin guiding piece and air pressure. And meanwhile, the resin guide piece and the stator are driven to rotate synchronously under the action of the first rotating shaft and the second rotating shaft, so that the insulating resin is dispersed into a gap between the flat wire and the stator, complete coverage of the insulating resin is realized, the groove fullness rate is improved, and the paint dripping effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of flat wire motor production, in particular to a paint dripping vacuum suction device for flat wire motors. Background Art

[0002] The new energy vehicle industry is currently very active, and a large number of traditional car companies have poured into this industry, resulting in a huge demand for drive motors for new energy electric vehicles. In the production process of drive motors, there is a process of insulating the stator of the drive motor with paint. This process fixes the flat wires inside the stator, increases its strength, insulates it from the outside, increases its overall moisture and dust resistance, and makes the stator and flat wire winding form a whole, thereby improving the mechanical properties and chemical stability of the entire drive motor.

[0003] The current stator painting process has the following steps: transporting the stator to the painting station for painting, heating the insulating resin, and transporting it to the drying equipment after the painting is completed. These steps are often completed by manually clamping and transporting the stator to various auxiliary equipment, which greatly reduces the production efficiency of the stator painting process and the quality of the product itself, and affects the overall mechanical and chemical properties of the drive motor.

[0004] To solve the above problems, a Chinese patent with application number 202310283099.X discloses a paint dripping device for paint dripping on motor wires and an operating method thereof. The above-mentioned paint dripping device includes a frame, a stator loading and unloading mechanism, a paint dripping mechanism, a flipping drive device and a vacuum pumping device. The stator loading and unloading mechanism is installed on the top of the frame; the paint dripping mechanism can be flipped on the frame, and includes a lower tank body and an upper tank body, and a accommodating chamber is formed between the upper tank body and the lower tank body, and a paint dripping gun is provided on the upper tank body; a heating device and a temperature sensor are provided in the accommodating chamber; a clamping assembly for clamping and fixing the stator is provided in the lower tank body; the flipping drive device is installed on the frame, and its output end is connected to the paint dripping mechanism; the vacuum pumping device is communicated with the accommodating chamber. Chinese patent application number 202320198632.8 discloses a stator paint dripping device controlled by electric heating. The above-disclosed paint dripping device includes a base mounting plate, an electric heating power supply unit, a stator heating rotating unit, and a paint dripping unit.

[0005] In the above-disclosed prior art, insulating resin is dripped onto the edge of the stator by a paint dripping gun, and the stator is driven to flip by a flipping drive device. This method cannot allow the insulating resin to flow quickly into the slits of the stator. When there are bubbles in the tip of the paint dripping gun, the slot fill rate of the stator slit will be greatly reduced, affecting the overall mechanical and chemical properties of the drive motor. Utility Model Content

[0006] The utility model aims to overcome the defects in the prior art and provides a flat wire motor paint dripping vacuum suction device which can improve the insulating resin covering speed, ensure that the insulating resin can complete the covering and improve the slot filling rate.

[0007] In order to achieve the above-mentioned purpose of the utility model, the utility model adopts the following technical scheme: a flat wire motor paint dripping vacuum suction device, including a coaxially arranged upper fixing mechanism and a lower fixing mechanism, the upper fixing mechanism includes a first rotating shaft and a resin guide sleeved on the first rotating shaft, the lower fixing mechanism includes a stator seat connected to the resin guide and a second rotating shaft connected to the stator seat, and a through hole is formed in the second rotating shaft for vacuuming the interior of the upper fixing mechanism and the lower fixing mechanism; the first rotating shaft and the second rotating shaft drive the resin guide and the stator seat to rotate synchronously.

[0008] As a preferred solution of the utility model, a guide groove with an open bottom is formed in the resin guide, and a glue dripping tube connected to the guide groove is provided on the top of the resin guide.

[0009] As a preferred solution of the utility model, a guide ring is provided at the bottom of the resin guide, and the guide ring is located at the opening of the guide groove.

[0010] As a preferred solution of the utility model, a connecting rod connected to the stator seat is further provided at the bottom of the resin guide, a connecting block is provided at the bottom end of the connecting rod, and a connecting groove plugged into the connecting block is formed at the top of the stator seat.

[0011] As a preferred solution of the utility model, a resin collecting groove for collecting resin is formed in the stator seat, and the through hole of the second rotating shaft is connected to the resin collecting groove.

[0012] As a preferred solution of the utility model, a sealed guide cover is provided on the top of the resin guide, the glue dripping tube is arranged on the guide cover, and a pressure gauge for detecting the pressure in the guide groove is provided on the guide cover.

[0013] As a preferred solution of the utility model, a locking block for fixing the dripping hose is sleeved on the first rotating shaft, and a first ball valve connected to the dripping hose is provided on the locking block.

[0014] As a preferred solution of the utility model, the top of the first rotating shaft is sleeved with a first rotating joint for fixing the upper fixing mechanism, a first bearing is connected between the first rotating shaft and the first rotating joint, and a conductive slip ring and a first oil seal cover are respectively provided at both ends of the first rotating joint.

[0015] As a preferred solution of the utility model, a bearing seat for installing the second rotating shaft is sleeved on the top of the second rotating shaft, a second bearing is provided between the second rotating shaft and the bearing seat, a second oil seal cover plate for sealing is provided at the bottom of the bearing seat, and a driven wheel for driving the second rotating shaft to rotate is provided at the bottom of the second rotating shaft.

[0016] As a preferred solution of the utility model, a second rotating joint is connected to the bottom of the second rotating shaft, a discharge port connected to the through hole is provided on the second rotating joint, and a second ball valve for controlling the discharge port switch is provided between the discharge port and the second rotating joint.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. By placing the stator in the stator seat, the air in the upper fixing mechanism and the lower fixing mechanism is extracted through the through hole in the second rotating shaft, so that a vacuum environment is formed in the upper fixing mechanism and the lower fixing mechanism, and then the insulating resin is added to the upper fixing mechanism, and the insulating resin is guided to the stator flat wire under the action of the resin guide and the air pressure, and at the same time, the resin guide and the stator are driven to rotate synchronously under the action of the first rotating shaft and the second rotating shaft, so that the insulating resin is dispersed into the gap between the flat wire and the stator, so as to achieve complete coverage of the insulating resin, improve the slot full rate, and ensure the effect of dripping paint;

[0019] 2. Furthermore, by providing a guide groove in the resin guide, and the opening of the guide groove abutting against the stator, the insulating resin added to the resin guide is drained to the flat wire of the stator under the action of the guide groove, thereby ensuring that the insulating resin can completely enter the stator. In addition, the upper fixing mechanism and the lower fixing mechanism are vacuumed by providing a discharge port connected to the through hole. At the same time, the excess insulating resin can be sucked out through the discharge port and the through hole, thereby avoiding the excess insulating resin affecting the effect of paint dripping. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the first embodiment of the utility model;

[0021] Figure 2 It is a structural schematic diagram of the upper fixing mechanism of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the lower fixing mechanism of the utility model.

[0023] Figure numerals: upper fixing mechanism 1, first rotating shaft 101, first rotating joint 1011, first bearing 1012, first oil seal cover plate 1013, resin guide 102, guide groove 1021, connecting rod 1022, guide ring 1023, guide cover plate 1024, pressure gauge 1025, connecting block 1026, conductive slip ring 103, slip ring mounting seat 1031, slip ring mounting frame 1032, dripping tube 104, first ball valve 1041, locking block 1042, lower fixing mechanism 2, discharge port 201, stator seat 202, connecting groove 2021, glue collecting groove 2022, second rotating shaft 203, through hole 2031, second bearing 204, bearing seat 2041, second oil seal cover plate 205, driven wheel 206, second rotating joint 207, second ball valve 208, stator 3, movable plate 4. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0025] like Figure 1-Figure 3 As shown, a flat wire motor paint dripping vacuum suction device includes an upper fixing mechanism 1 and a lower fixing mechanism 2 which are coaxially arranged, the upper fixing mechanism 1 includes a first rotating shaft 101 and a resin guide 102 sleeved on the first rotating shaft 101, the lower fixing mechanism 2 includes a stator seat 202 connected to the resin guide 102 and a second rotating shaft 203 connected to the stator seat 202, a through hole 2031 for vacuuming the interior of the upper fixing mechanism 1 and the lower fixing mechanism 2 is formed in the second rotating shaft 203; the first rotating shaft 101 and the second rotating shaft 203 drive the resin guide 102 and the stator seat 202 to rotate synchronously.

[0026] Furthermore, the upper fixing mechanism 1 is provided with a mounting plate 4 for mounting the upper fixing mechanism 1, the lower fixing mechanism 2 is arranged below the mounting plate 4, the upper fixing mechanism 1 and the lower fixing mechanism 2 are internally connected, the first rotating shaft 101 and the second rotating shaft 203 are coaxially arranged, the second rotating shaft 203 is arranged at the bottom of the stator seat 202, and the stator 3 is placed in the stator seat 202, and the stator 3 is fixed by the upper fixing mechanism 1 and the lower fixing mechanism 2. In addition, the through hole 2031 is along the axial direction of the second rotating shaft 203. Direction setting, air is extracted through the through hole 2031 in the second rotating shaft 203, so that a vacuum environment is formed in the upper fixing mechanism 1 and the lower fixing mechanism 2, and then the insulating resin is added to the upper fixing mechanism 1, and the insulating resin is guided to the flat wire of the stator 3 under the action of the resin guide 102 and the air pressure. At the same time, the resin guide 102 and the stator 3 are driven to rotate synchronously under the action of the first rotating shaft 101 and the second rotating shaft 203, so that the insulating resin is dispersed into the gap between the flat wire and the stator 3.

[0027] A guide groove 1021 with an opening at the bottom is formed in the resin guide 102, and a glue dropper 104 connected to the guide groove 1021 is provided at the top of the resin guide 102. Furthermore, the guide groove 1021 is arranged along the circumferential direction of the resin guide 102, and the opening of the guide groove 1021 abuts against the stator 3 placed in the stator seat 202. The insulating resin is injected into the guide groove 1021 through the glue dropper 104, and under the action of the guide groove 1021, the insulating resin flows into the flat wire of the stator 3.

[0028] A guide ring 1023 is provided at the bottom of the resin guide 102, and the guide ring 1023 is located at the opening of the guide groove 1021. Furthermore, the guide ring 1023 is arranged along the circumferential direction of the resin guide 102, and the guide ring 1023 is inserted into the stator 3. The upper fixing mechanism 1 is guided to the stator 3 through the guide ring 1023 to fix the stator 3, while also ensuring that the insulating resin can enter the stator 3.

[0029] The bottom of the resin guide 102 is also provided with a connecting rod 1022 connected to the stator seat 202, and the bottom end of the connecting rod 1022 is provided with a connecting block 1026. The top of the stator seat 202 is formed with a connecting groove 2021 that is plugged into the connecting block 1026. Furthermore, there are multiple connecting rods 1022, and several connecting rods 1022 are distributed along the circumferential direction of the resin guide 102. At the same time, several connecting rods 1022 are arranged along the axial direction of the resin guide 102. The connecting groove 2021 is arranged at the top edge of the stator seat 202, and is connected to the connecting groove 2021 through the connecting block 1026 at the bottom end of the connecting rod 1022, thereby realizing the connection and fixation of the resin guide 102 and the stator seat 202.

[0030] A glue collecting groove 2022 for collecting resin is formed in the stator base 202, and the through hole 2031 of the second rotating shaft 203 is connected to the glue collecting groove 2022. Furthermore, the glue collecting groove 2022 is set at the bottom of the stator base 202, and the excess insulating resin is collected through the glue collecting groove 2022, and then the excess insulating resin is sucked out through the through hole 2031.

[0031] A sealed guide cover 1024 is provided on the top of the resin guide 102, and the glue dripping tube 104 is arranged on the guide cover 1024. A pressure gauge 1025 for detecting the pressure in the guide groove 1021 is provided on the guide cover 1024. Furthermore, the guide cover 1024 is used to seal the top of the resin guide 102, and the glue dripping tube 104 passes through the guide cover 1024 and is connected with the guide groove 1021. In addition, the air pressure in the upper fixing mechanism 1 and the lower fixing mechanism 2 is detected by the arranged pressure gauge 1025, thereby ensuring that the upper fixing mechanism 1 and the lower fixing mechanism 2 are in a vacuum state.

[0032] A locking block 1042 for fixing the dripping glue tube 104 is sleeved on the first rotating shaft 101 . A first ball valve 1041 connected to the dripping glue tube 104 is provided on the locking block 1042 . Furthermore, the dripping glue tube 104 can be opened and closed by the first ball valve 1041 .

[0033] The top of the first rotating shaft 101 is sleeved with a first rotating joint 1011 for fixing the upper fixing mechanism 1, a first bearing 1012 is connected between the first rotating shaft 101 and the first rotating joint 1011, a conductive slip ring 103 and a first oil seal cover plate 1013 are respectively provided at both ends of the first rotating joint 1011, further, the conductive slip ring 103 is arranged on the top of the first rotating joint 1011, a slip ring mounting seat 1031 is provided on the first rotating joint 1011, a slip ring mounting frame 1032 is provided on the slip ring mounting seat 1031, the conductive slip ring 103 is arranged on the slip ring mounting frame 1032, and the first oil seal cover plate 1013 is arranged at the bottom of the first rotating joint 1011 for sealing the first rotating joint 1011.

[0034] A bearing seat 2041 for mounting the second rotating shaft 203 is sleeved on the top of the second rotating shaft 203, a second bearing 204 is provided between the second rotating shaft 203 and the bearing seat 2041, a second oil seal cover plate 205 for sealing is provided at the bottom of the bearing seat 2041, and a driven wheel 206 for driving the second rotating shaft 203 to rotate is provided at the bottom of the second rotating shaft 203. Furthermore, the driven wheel 206 is connected through an external power component, thereby driving the second rotating shaft 203 to rotate, and then driving the stator seat 202, the stator 3 and the resin guide 102 to rotate synchronously, ensuring that the insulating resin is dispersed into the gap between the flat wire and the stator 3, achieving complete coverage of the insulating resin, improving the slot fill rate, and ensuring the paint dripping effect.

[0035] A second rotary joint 207 is connected to the bottom of the second rotating shaft 203, and a discharge port 201 connected to the through hole 2031 is arranged on the second rotary joint 207. A second ball valve 208 for controlling the switch of the discharge port 201 is arranged between the discharge port 201 and the second rotary joint 207. Furthermore, when vacuuming is required, the discharge port 201 is connected through an external vacuum pump to achieve vacuuming of the upper fixing mechanism 1 and the lower fixing mechanism 2. When it is necessary to suck out excess insulating resin, the discharge port 201 is connected through an external peristaltic pump to suck out excess insulating resin.

[0036] Working principle: the stator 3 is clamped and sealed by the cooperation of the upper fixing mechanism 1 and the lower fixing mechanism 2, thereby completing the fixing and sealing of the stator 3. After waiting for the completion of the previous work, the second ball valve 208 is opened, the first ball valve 1041 is closed, and the upper fixing mechanism 1 and the lower fixing mechanism 2 are evacuated. After waiting for the pressure gauge 1025 to display a vacuum pressure value that meets the working state, the second ball valve 208 is closed, so that the slit in the stator 3 is in a vacuum state. At this time, the external pipeline for conveying insulating resin is connected to the drip glue 104, and the first ball valve 1041 is opened. The insulating resin is conveyed to the guide groove 1021 through the drip glue tube 104 and flows into the stator 3. In the vacuum environment, the insulating resin is quickly sucked away by the slit, thereby completing the dripping of paint on the slit.

[0037] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0038] Although this article uses more reference numerals in the figure: upper fixing mechanism 1, first rotating shaft 101, first rotating joint 1011, first bearing 1012, first oil seal cover plate 1013, resin guide 102, guide groove 1021, connecting rod 1022, guide ring 1023, guide cover plate 1024, pressure gauge 1025, connecting block 1026, conductive slip ring 103, slip ring mounting seat 1031, slip ring mounting frame 1032, dripping tube 104, first ball valve 1041, locking block 1042, lower fixing mechanism 2, discharge port 201, stator seat 202, connecting groove 2021, glue collecting groove 2022, second rotating shaft 203, through hole 2031, second bearing 204, bearing seat 2041, second oil seal cover plate 205, driven wheel 206, second rotating joint 207, second ball valve 208, stator 3, moving plate 4 and other terms, but the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A flat wire motor paint dripping vacuum suction device, characterized in that: The invention comprises an upper fixing mechanism (1) and a lower fixing mechanism (2) which are coaxially arranged, wherein the upper fixing mechanism (1) comprises a first rotating shaft (101) and a resin guide (102) sleeved on the first rotating shaft (101), and the lower fixing mechanism (2) comprises a stator seat (202) connected to the resin guide (102) and a second rotating shaft (203) connected to the stator seat (202), wherein a through hole (2031) for evacuating the interior of the upper fixing mechanism (1) and the lower fixing mechanism (2) is formed in the second rotating shaft (203); the first rotating shaft (101) and the second rotating shaft (203) drive the resin guide (102), the stator (3) and the stator seat (202) to rotate synchronously.

2. A flat wire motor paint dripping vacuum suction device according to claim 1, characterized in that: A guide groove (1021) with an opening at the bottom is formed in the resin guide (102), and a glue dripping tube (104) connected to the guide groove (1021) is provided at the top of the resin guide (102).

3. A flat wire motor paint dripping vacuum suction device according to claim 2, characterized in that: A guide ring (1023) is provided at the bottom of the resin guide (102), and the guide ring (1023) is located at the opening of the guide groove (1021).

4. A flat wire motor paint dripping vacuum suction device according to claim 1, characterized in that: The bottom of the resin guide (102) is also provided with a connecting rod (1022) connected to the stator seat (202), the bottom end of the connecting rod (1022) is provided with a connecting block (1026), and the top of the stator seat (202) is formed with a connecting groove (2021) plugged into the connecting block (1026).

5. A flat wire motor paint dripping vacuum suction device according to claim 1, characterized in that: A resin collecting groove (2022) for collecting resin is formed in the stator seat (202), and the through hole (2031) of the second rotating shaft (203) is connected to the resin collecting groove (2022).

6. A flat wire motor paint dripping vacuum suction device according to claim 2, characterized in that: A sealed guide cover plate (1024) is provided on the top of the resin guide (102), the glue dripping tube (104) is arranged on the guide cover plate (1024), and a pressure gauge (1025) for detecting the pressure in the guide groove (1021) is provided on the guide cover plate (1024).

7. A flat wire motor paint dripping vacuum suction device according to claim 2, characterized in that: A locking block (1042) for fixing the dripping glue tube (104) is sleeved on the first rotating shaft (101), and a first ball valve (1041) connected to the dripping glue tube (104) is provided on the locking block (1042).

8. A flat wire motor paint dripping vacuum suction device according to claim 1, characterized in that: A first rotating joint (1011) for fixing the upper fixing mechanism (1) is sleeved on the top of the first rotating shaft (101), a first bearing (1012) is connected between the first rotating shaft (101) and the first rotating joint (1011), and a conductive slip ring (103) and a first oil seal cover plate (1013) are respectively provided at two ends of the first rotating joint (1011).

9. A flat wire motor paint dripping vacuum suction device according to claim 1, characterized in that: A bearing seat (2041) for mounting the second rotating shaft (203) is sleeved on the top of the second rotating shaft (203); a second bearing (204) is provided between the second rotating shaft (203) and the bearing seat (2041); a second oil seal cover plate (205) for sealing is provided at the bottom of the bearing seat (2041); and a driven wheel (206) for driving the second rotating shaft (203) to rotate is provided at the bottom of the second rotating shaft (203).

10. A flat wire motor paint dripping vacuum suction device according to claim 1, characterized in that: A second rotating joint (207) is connected to the bottom of the second rotating shaft (203), and a discharge port (201) connected to the through hole (2031) is provided on the second rotating joint (207). A second ball valve (208) for controlling the opening and closing of the discharge port (201) is provided between the discharge port (201) and the second rotating joint (207).

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