Automatic paint dripping system and paint dripping method
Through the use of the automatic paint drop system, the problem of paint output deviation during the motor stator paint drop process is solved, the precise control of the stator paint drop and the uniformity of the paint hanging volume is achieved, and the product yield and production efficiency are improved.
Patent Information
- Application Number
- CN202411438110.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-02-07
AI Technical Summary
During the existing motor stator paint dripping process, there is a deviation in the amount of paint output of each paint nozzle, which cannot be accurately controlled, resulting in the amount of paint hanging of the stator paint dripping is not uniform enough, the product yield is low, which affects production efficiency.
Automatic paint dripping system is adopted, including rack, paint supply mechanism, paint dripping mechanism and control mechanism. The drip paint mechanism consists of a movable drip paint unit and a three-axis posture adjustment mechanism. The precise conveying of insulating paint and stator drip treatment is achieved through a single screw pump and a drip gun. The control mechanism controls the position and working status of the paint drop unit to ensure that the paint output of each paint drop nozzle is consistent, and monitors and adjusts it in real time through the paint hanging detection mechanism.
Accurate control of the stator paint dripping process is achieved, ensuring the uniform amount of paint hanging, and significantly improving the product's pass rate and production efficiency.
Smart Images
Figure CN119401763A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of motor production and manufacturing, and in particular to an automatic paint dripping system and a paint dripping method. Background Art
[0002] At present, the new energy vehicle industry is very active, and a large number of traditional car companies are pouring into this industry, which has led to a huge demand for drive motors for new energy electric vehicles. The stator, as an important part of the drive motor, consists of three parts: the stator core, the stator winding (i.e., the coil) and the base. The main function of the stator is to generate a rotating magnetic field, while the main function of the rotor is to be cut by the magnetic lines of force in the rotating magnetic field to generate (output) current. In the production and processing of the drive motor, in order to ensure the fixation of the coil and increase the insulation strength between the enameled wires, the coil on the stator needs to be insulated, and the insulation treatment process of the motor stator is a very important step, which directly affects the performance of the motor. When insulating the motor stator, a certain amount of insulating paint is needed to fill the gaps between the insulation layers and the slots of the rotor winding, so that the entire winding is insulated and bonded into a whole, thereby improving the insulation strength and moisture resistance of the winding, thereby improving the mechanical properties and chemical stability. At present, the insulation treatment of motor stators is mostly done by using a paint dripping machine. After the stator is placed on the rotating platform, a screw pump is used to transport the insulating paint from the bottom of the supply barrel, and then the paint is transported to the paint dripping nozzle through a pipeline. This type of structure uses a single screw pump to control the amount of paint before diversion. The length of the pipeline from the insulating paint to each paint dripping nozzle and the height of the pipeline layout are different before diversion, which makes the amount of paint from each paint dripping nozzle deviate, resulting in uneven stator paint dripping and paint hanging amount, which cannot meet the requirements. The amount of paint hanging is an important indicator to measure whether the stator paint dripping is qualified. If the amount of paint hanging on the stator does not meet the requirements, the stator product will be unqualified, resulting in product scrapping, reducing production efficiency and affecting the overall performance of the drive.
[0003] Therefore, there is an urgent need for an automatic paint dripping system and paint dripping method that can drip paint evenly, accurately control the amount of paint discharged from each paint dripping nozzle, improve product yield, and improve production efficiency. Summary of the invention
[0004] In view of the shortcomings of the prior art mentioned above, the purpose of the present invention is to provide an automatic paint dripping system and a paint dripping method, which are used to solve the problems of deviation in the paint output of each paint dripping nozzle during the stator paint dripping process, the inability to accurately control the paint output, the uneven amount of paint dripping on the stator, and low product yield.
[0005] To solve the above problems, the technical solution adopted by the present invention is: The automatic paint dripping system of the present invention is characterized by comprising: A frame, the frame comprising a bearing surface for bearing the stator; The paint supply mechanism is located on one side of the frame and is used to supply insulating paint to the paint dripping mechanism; A paint dripping mechanism is arranged on the frame, the paint dripping mechanism comprises a support frame and a plurality of movable paint dripping units connected to the paint supply mechanism, the movable paint dripping units are configured to be movable relative to the support frame, and each of the movable paint dripping units has a feeding path of the same length, and is used for performing paint dripping treatment on the stator on the bearing surface; and / or A control mechanism is arranged on the frame, and the control mechanism is connected to each of the movable paint dripping units, and is used to adjust the position and working state of each of the movable paint dripping units to perform paint dripping treatment on the stator.
[0006] As a preferred embodiment of the present invention, the movable paint dripping unit includes a three-axis posture adjustment mechanism, a single-screw pump arranged on the three-axis posture adjustment mechanism for conveying the insulating paint in the paint supply mechanism to the glue dripping gun, and a glue dripping gun arranged on the single-screw pump for dripping paint on the stator on the bearing surface. The three-axis posture adjustment mechanism is arranged on the support frame for installing and adjusting the position of the single-screw pump; the single-screw pump is installed on the action end of the three-axis posture adjustment mechanism through an angle adjustment assembly; the glue dripping gun is installed on the single-screw pump, and the inlet of the glue dripping gun is connected to the paint outlet of the single-screw pump, forming a feeding path for conveying insulating paint between the paint inlet of the single-screw pump and the outlet of the glue dripping gun.
[0007] As a preferred embodiment of the present invention, the single-screw pump includes a single-screw pump body, a drive motor connected to the rotor screw of the single-screw pump body, and a frequency converter for controlling the speed of the drive motor. The single-screw pump body is provided with a paint inlet and a paint outlet. The drive motor and the frequency converter are connected to a control mechanism, which controls the liquid suction volume of the single-screw pump by adjusting the speed of the rotor screw of the single-screw pump; the paint inlet and the paint outlet are connected to a flow meter, and the flow meter is connected to a control mechanism for adjusting the liquid suction volume of the single-screw pump.
[0008] As a preferred embodiment of the present invention, the three-axis attitude adjustment mechanism includes a horizontally arranged X-axis attitude adjustment mechanism, a Y-axis attitude adjustment mechanism slidably connected to the X-axis attitude adjustment mechanism and arranged in a horizontal direction, and a Z-axis attitude adjustment mechanism slidably connected to the Y-axis attitude adjustment mechanism and arranged in a vertical direction. An angle adjustment component is installed at the action end of the Z-axis attitude adjustment mechanism to adjust the inclination angle of the glue gun.
[0009] As a preferred embodiment of the present invention, the angle adjustment assembly includes a connecting seat, an angle adjustment rod and an adjustment disk. The connecting seat is fixedly mounted on the action end of the three-axis posture adjustment mechanism, and the connecting seat is provided with a socket that penetrates the connecting seat along its own thickness direction; the angle adjustment rod is tightly inserted in the socket, and the end of the angle adjustment rod close to the single-screw pump is provided with an adjustment disk, and the single-screw pump is detachably mounted on the adjustment disk.
[0010] As a preferred embodiment of the present invention, the support frame is a rectangular frame, which includes a first long frame side and a second long frame side arranged opposite to each other, two sets of movable paint dripping units are arranged on the first long frame side, and one set of movable paint dripping units is arranged on the second long frame side, and one of the glue dripping guns on the first long frame side is opposite to the glue dripping gun on the second long frame side along the width direction of the support frame and has the same inclination angle, and the other glue dripping gun on the first long frame side is arranged vertically.
[0011] As a preferred embodiment of the present invention, the inclination angle of the two sets of glue guns arranged relatively along the width direction of the support frame is 30-60°.
[0012] As a preferred embodiment of the present invention, the automatic paint dripping system further comprises a stator angle adjustment mechanism, and the stator angle adjustment mechanism is connected to the control mechanism and is used for clamping the stator and driving the stator to rotate.
[0013] As a preferred embodiment of the present invention, the automatic paint dripping system further comprises a paint amount detection mechanism, which is connected to the control mechanism and is used to detect the amount of paint on the stator on the bearing surface.
[0014] The present invention also provides a method for applying paint to a stator using the automatic paint applying system, characterized in that it comprises the following steps: Fix the stator to be painted on the bearing surface; Adjust the tilt angle of each glue gun; Select the drip paint formula according to the structural size of the stator, the type of insulating paint and the solid content; The control mechanism retrieves the paint dripping formula and generates corresponding operation instructions according to the selected paint dripping formula; the operation instructions are used to instruct the stator to perform corresponding operations according to the working parameters corresponding to the paint dripping formula; the paint dripping formula is stored in the internal address of the control mechanism; The control mechanism sends an operation instruction to the movable paint dispensing unit, and controls each movable paint dispensing unit to move according to the movement path set in the paint dispensing formula until the paint dispensing head of each glue dispensing gun contacts the coil on the stator; After the movable paint dripping unit moves to a certain position, the movable paint dripping unit acts according to the operation instruction and drips paint on the stator when the stator rotates; The control mechanism receives the stator paint condition monitored in real time by the paint amount detection mechanism, and determines whether the stator paint dripping has reached saturation based on the stator paint condition. If it has not reached saturation, the control mechanism adjusts the paint dripping mechanism action according to the paint condition to perform correction processing on the stator paint dripping. If it has reached saturation, the control mechanism controls the paint dripping mechanism to stop the action, heats and cures the stator, and completes the stator paint dripping.
[0015] As a preferred embodiment of the present invention, before the stator is subjected to the paint dripping treatment, the stator winding (ie, coil) needs to be preheated at about 130° C. for 4 to 8 hours to remove moisture.
[0016] As a preferred embodiment of the present invention, after the stator is subjected to the paint dripping treatment, the stator winding (ie, coil) needs to be heated and cured at about 140-150° C. for 1-2 hours to completely cure the insulating paint.
[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: different paint dripping formulas are stored in the control mechanism, and the user can call up different paint dripping formulas as required during operation, and the stator is treated with paint dripping according to the paint dripping formula. The operation is simple and fast, and the adaptability is wide, which greatly improves the production efficiency; the feeding paths of the movable paint dripping units for conveying insulating paint are the same, which effectively avoids the problem of inaccurate and uncontrollable paint output due to different pipe lengths and pipe layout heights of the paint dripping gun. The position and paint output of each paint dripping gun can be accurately controlled through the system of the present application, which significantly improves the qualified rate of the product; the angle of each paint dripping gun is adjustable, which is convenient for paint dripping operation on the stator; the paint hanging condition of the stator is monitored in real time through the paint hanging amount detection mechanism, and the action is adjusted in time according to the paint hanging condition, which significantly improves the paint hanging amount of the stator winding, improves the product yield, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 A flow chart of a method for performing paint dripping treatment on a stator by the automatic paint dripping system of the present invention; Figure 2 It is a structural schematic diagram of the automatic paint dripping system of the present invention; Figure 3 It is a front view of the automatic paint dripping system of the present invention; Figure 4 A side view of the automatic paint dripping system of the present invention; Figure 5 A top view of the automatic paint dripping system of the present invention; Figure 6 It is a structural schematic diagram of the paint dripping mechanism of the present invention; Figure 7 It is a structural schematic diagram of a movable paint dripping unit of the present invention; Figure 8 It is a partial enlarged view of the movable paint dripping unit of the present invention; Fig. 9 It is a structural diagram of the paint supply mechanism of the present invention; Fig.10 It is a top view of the paint supply mechanism of the present invention.
[0019] In the accompanying description: 1-frame; 11-bearing surface; 2-paint supply mechanism; 21-support frame; 211-universal wheel; 22-paint storage kettle; 221-kettle body; 222-stirring mechanism; 2211-feeding port; 2212-paint supply port; 2213-discharging port; 2214-control valve; 3-paint dripping mechanism; 31-support frame; 311-first long frame side; 312-second long frame side; 32-movable paint dripping unit; 321-three-axis posture adjustment mechanism; 322-single screw pump; 323-glue gun; 324-angle adjustment assembly; 3241-connecting seat; 3242-angle adjustment rod; 3243-adjustment disk; 325-X-axis posture adjustment mechanism; 3251-X-axis linear module mounting base plate; 3252-X-axis linear module; 3253-first servo motor; 326-Y-axis posture adjustment mechanism; 3261-Y-axis linear module mounting base plate; 3262-Y-axis linear module; 3263-second servo motor; 327-Z-axis posture adjustment mechanism; 3271-Z-axis linear module mounting base plate; 3272-Z-axis linear module; 3273-third servo motor; 4- Control mechanism. DETAILED DESCRIPTION
[0020] The following describes the implementation of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application.
[0021] It should be noted that the process equipment or devices not specifically specified in the following embodiments are all conventional equipment or devices in the art.
[0022] In addition, it should be understood that one or more method steps mentioned in this application do not exclude the existence of other method steps before or after the combination step or the insertion of other method steps between these explicitly mentioned steps, unless otherwise specified; it should also be understood that the combination connection relationship between one or more devices / apparatuses mentioned in this application does not exclude the existence of other devices / apparatuses before or after the combination device / apparatus or the insertion of other devices / apparatuses between these two explicitly mentioned devices / apparatuses, unless otherwise specified. Moreover, unless otherwise specified, the numbering of each method step is only a convenient tool for identifying each method step, and is not intended to limit the order of arrangement of each method step or the scope of implementation of this application. Changes or adjustments in their relative relationships shall also be regarded as the scope of implementation of this application without substantial changes in the technical content.
[0023] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.
[0024] In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", "axial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.
[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0026] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0027] The present application is further described below in conjunction with specific embodiments, but the protection scope of the present application is not limited thereto.
[0028] like Figure 1 to Figure 6 As shown, an automatic paint dripping system according to the present invention comprises: A frame 1, wherein the frame 1 comprises a bearing surface 11 for bearing a stator; The paint supply mechanism 2 is located on one side of the frame 1 and is used to supply insulating paint to the paint dripping mechanism 3; A paint dripping mechanism 3 is arranged on the frame 1, and the paint dripping mechanism 3 includes a support frame 31 and a plurality of movable paint dripping units 32 connected to the paint supply mechanism 2, wherein the movable paint dripping units 32 are configured to be movable relative to the support frame 31, and each of the movable paint dripping units 32 has a feeding path of the same length, and is used to perform paint dripping treatment on the stator on the bearing surface 11; and / or The control mechanism 4 is disposed on the frame 1 , and is connected to each of the movable paint dripping units 32 , and is used to adjust the position and working state of each of the movable paint dripping units 32 to perform paint dripping treatment on the stator.
[0029] As shown in the figure, the movable paint dripping unit 32 includes a three-axis posture adjustment mechanism 321, a single screw pump 322 arranged on the three-axis posture adjustment mechanism 321 for conveying the insulating paint in the paint supply mechanism 2 to the glue dripping gun 323, and a glue dripping gun 323 arranged on the single screw pump 322 for dripping paint on the stator on the bearing surface 11. The three-axis posture adjustment mechanism 321 is arranged on the support frame 31, and is used to install and adjust the position of the single screw pump 322; the single screw pump 322 is installed on the action end of the three-axis posture adjustment mechanism 321 through an angle adjustment component 324; the glue dripping gun 323 is installed on the single screw pump 322, and the inlet of the glue dripping gun 323 is connected to the paint outlet of the single screw pump 322, and a feeding path for conveying insulating paint is formed between the paint inlet of the single screw pump 322 and the outlet of the glue dripping gun 323.
[0030] As shown in the figure, the single-screw pump 322 includes a single-screw pump body, a driving motor connected to the rotor screw of the single-screw pump body, and a frequency converter for controlling the speed of the driving motor. The single-screw pump body is provided with a paint inlet and a paint outlet. The driving motor and the frequency converter are connected to a control mechanism, which controls the liquid suction amount of the single-screw pump 322 by adjusting the speed of the rotor screw of the single-screw pump 322; the paint inlet and the paint outlet are connected to a flow meter, and the flow meter is connected to a control mechanism 4 for adjusting the liquid suction amount of the single-screw pump 322.
[0031] As shown in the figure, the three-axis attitude adjustment mechanism 321 includes a horizontally arranged X-axis attitude adjustment mechanism 324, a Y-axis attitude adjustment mechanism 326 slidably connected to the X-axis attitude adjustment mechanism 325 and arranged in a horizontal direction, and a Z-axis attitude adjustment mechanism 327 slidably connected to the Y-axis attitude adjustment mechanism 326 and arranged in a vertical direction. The action end of the Z-axis attitude adjustment mechanism 327 is installed with an angle adjustment component 324 for adjusting the tilt angle of the glue gun 323.
[0032] As shown in the figure, the X-axis posture adjustment mechanism 325 includes an X-axis linear module mounting base plate 3251, an X-axis linear module 3252 arranged on the X-axis linear module mounting base plate 3251, and a first servo motor 3253 driving the X-axis linear module. The X-axis linear module mounting base plate 3251 is horizontally installed on the support frame 31; the first servo motor 3253 is installed at one end of the X-axis linear module mounting base plate 3251, and the power output end of the first servo motor 3253 is connected to the power input end of the X-axis linear module 3252 through a coupling, which is used to drive the X-axis slide on the X-axis linear module to slide along the axial direction of the X-axis linear module.
[0033] As shown in the figure, the Y-axis posture adjustment mechanism 326 includes a Y-axis linear module mounting base plate 3261, a Y-axis linear module 3262 arranged on the Y-axis linear module mounting base plate, and a second servo motor 3263 driving the Y-axis linear module. The Y-axis linear module mounting base plate 3261 is horizontally installed on the X-axis slide of the X-axis posture adjustment mechanism 325, and the X-axis linear module 3252 and the Y-axis linear module 3262 are perpendicular to each other; the second servo motor 3263 is installed at one end of the Y-axis linear module mounting base plate 3261, and the power output end of the second servo motor 3261 is connected to the power input end of the Y-axis linear module 3262 through a coupling, which is used to drive the Y-axis slide on the Y-axis linear module to slide along the axial direction of the Y-axis linear module.
[0034] As shown in the figure, the Z-axis posture adjustment mechanism 327 includes a Z-axis linear module mounting base plate 3271, a Z-axis linear module 3272 arranged on the Z-axis linear module mounting base plate, and a third servo motor 3273 driving the Z-axis linear module. The Z-axis linear module mounting base plate 3271 is vertically mounted on the Y-axis slide of the Y-axis posture adjustment mechanism 326, and the Z-axis linear module 3272 is perpendicular to the X-axis linear module 3251 and the Y-axis linear module 3261; the third servo motor 3273 is mounted on one end of the Z-axis linear module mounting base plate 3271, and the power output end of the third servo motor 3273 is connected to the power input end of the Z-axis linear module 3272 through a coupling, so as to drive the Z-axis slide on the Z-axis linear module to slide along the axial direction of the Z-axis linear module.
[0035] As shown in the figure, the angle adjustment assembly 324 includes a connecting seat 3241, an angle adjustment rod 3242 and an adjustment disk 3243. The connecting seat 3241 is fixedly installed on the action end of the three-axis posture adjustment mechanism 321. The connecting seat 3241 is provided with a socket that penetrates the connecting seat 3241 along its own thickness direction; the angle adjustment rod 3242 is tightly inserted in the socket, and the end of the angle adjustment rod 3242 close to the single-screw pump 322 is provided with an adjustment disk 3243, and the single-screw pump 322 is detachably mounted on the adjustment disk 3243.
[0036] There are two connecting seats 3241, which are symmetrically installed at the action end of the three-axis posture adjustment mechanism 321, and the sockets on the two connecting seats 3241 are coaxial.
[0037] The connection seat 3241 is provided with an open slot arranged in a horizontal direction, and the open slot passes through the insertion hole.
[0038] As shown in the figure, the angle adjustment component 324 also includes a stepless angle adjustment rotating cylinder, the stepless angle adjustment rotating cylinder is arranged at the action end of the Z-axis posture adjustment mechanism 327, the driving shaft of the stepless angle adjustment rotating cylinder is connected to the angle adjustment rod 3242, and the stepless angle adjustment rotating cylinder is connected to the control mechanism. The rotation angle of the angle adjustment rod 3242 is adjusted by the stepless angle adjustment rotating cylinder, and the tilt angle of the paint dripping gun can be automatically adjusted.
[0039] As shown in the figure, the support frame 31 is a rectangular frame, and the support frame 31 includes a first long frame side 311 and a second long frame side 312 that are relatively arranged. Two sets of movable paint dripping units 32 are arranged on the first long frame side 311, and one set of movable paint dripping units 32 is arranged on the second long frame side 312. One of the glue dripping guns 323 on the first long frame side 311 and the glue dripping gun 323 on the second long frame side 312 are opposite to each other along the width direction of the support frame 31 and have the same inclination angle, and the other glue dripping gun 323 on the first long frame side 311 is arranged vertically.
[0040] As shown in the figure, the two sets of glue guns 323 arranged opposite to each other along the width direction of the support frame 31 have an inclination angle of 30-60°.
[0041] The automatic paint dripping system further comprises a stator angle adjustment mechanism, which is connected to the control mechanism 4 and is used for clamping the stator and driving the stator to rotate so as to cooperate with the paint dripping mechanism to perform paint dripping processing.
[0042] The automatic paint dripping system further comprises a paint amount detection mechanism, which is connected to the control mechanism 4 and is used to detect the amount of paint on the stator on the bearing surface 11 .
[0043] As shown in the figure, the paint supply mechanism 2 includes a support frame 21, a paint storage kettle 22 arranged on the support frame 21 for storing insulating paint, and a material delivery pipeline for connecting the paint storage kettle with each movable paint dripping unit. A universal wheel 211 is provided at the bottom of the support frame 21; the paint storage kettle 22 includes a kettle body 221 and a stirring mechanism 222, the kettle body 221 is provided with a storage chamber for storing insulating paint, the top of the kettle body 221 is provided with a feeding port 2211 connected to the storage chamber, the upper part of the kettle body 221 is provided with a paint supply port 2212 for connecting the material delivery pipeline, and the bottom of the kettle body 221 is provided with a discharge port 2213 connected to the storage chamber; the stirring mechanism 222 is configured to stir the insulating paint in the storage chamber.
[0044] A control valve 2214 is disposed at the paint supply port 2212 of the kettle body 221 , and the control valve 2214 is connected to the control mechanism.
[0045] The stirring mechanism 222 includes a stirring shaft and a stirring drive motor disposed on the kettle body for driving the stirring shaft to rotate. The stirring shaft is disposed in the storage chamber and can rotate around an axis perpendicular to a horizontal plane. The top end of the stirring shaft is connected to the stirring drive motor.
[0046] As shown in the figure, the control mechanism 4 includes a touch screen and a programmable logic controller. The touch screen is used to receive user operation instructions, and the operation instructions are used to instruct the stator to perform corresponding operations according to the working parameters corresponding to the paint dripping formula; the programmable logic controller is connected to the touch screen, receives the operation instructions, sends the operation instructions to the paint dripping mechanism, receives the detection information of the paint hanging amount detection mechanism, and controls the paint dripping mechanism and the stator angle adjustment mechanism to perform corresponding operations on the stator according to the operation instructions.
[0047] The present invention also provides a method for applying paint to a stator based on the automatic paint applying system, comprising the following steps: S1 fixes the stator to be dripped with paint on the stator angle adjustment mechanism; S2 adjusts the tilt angle of each glue gun; S3 selects the drip paint formula according to the structural size, type and solid content of the stator; S4: the control mechanism retrieves the paint dripping formula and generates a corresponding operation instruction according to the paint dripping formula selected by the user; the operation instruction is used to instruct to perform a corresponding operation on the paint dripping formula of the stator; the paint dripping formula is stored in an internal address of the control mechanism; S5 control mechanism sends operation instructions to the movable paint dispensing units, controlling each movable paint dispensing unit to move according to the motion path set in the paint dispensing formula until the paint dispensing head of each glue dispensing gun contacts the coil on the stator; S6 After the movable paint dripping unit moves to the right position, the stator angle adjustment mechanism and the movable paint dripping unit act according to the operation instruction to drip paint on the stator; The S7 control mechanism receives the stator paint condition monitored in real time by the paint amount detection mechanism, and calculates the stator paint amount in combination with the paint output to determine whether the stator paint dripping has reached saturation. If it has not reached saturation, the control mechanism adjusts the stator angle adjustment mechanism and the paint dripping mechanism according to the paint condition to correct the stator paint dripping. If it has reached saturation, the control mechanism controls the stator angle adjustment mechanism and the paint dripping mechanism to stop the action, heats and cures the stator, and completes the stator paint dripping.
[0048] Before the stator is painted, the stator winding (i.e. coil) needs to be preheated at about 130°C for 4 to 8 hours to remove moisture.
[0049] After the stator is treated with paint, the stator winding (i.e. coil) needs to be heated and cured at about 140~150℃ for 1~2h to completely cure the insulating paint.
[0050] Different paint dripping formulas are stored in the control mechanism of the present application, and users can call up different paint dripping formulas as required. The control mechanism controls the paint dripping mechanism to drip paint on the stator according to the paint dripping formula, and there is no need to frequently set the paint dripping working parameters, and the corresponding paint dripping formula can be directly called up. The operation is simple and fast, and the adaptability is wide, which greatly improves the production efficiency; in each movable paint dripping unit of the present application, the single screw pump is directly connected to the glue dripping gun, which ensures that the feeding path of each movable paint dripping unit for conveying insulating paint is the same, which effectively avoids the pipeline length and pipeline layout high of the paint dripping gun The problem of inaccurate and uncontrollable paint output due to different degrees is solved, and a flow meter is added between the paint inlet and the paint outlet of the single-screw pump. The single-screw pump is connected to the drive motor for adjusting the speed of the single-screw pump through a frequency converter. The position of each paint dripping gun and the paint output can be accurately controlled, which significantly improves the qualified rate of the product; the angle of each paint dripping gun is adjustable, which is convenient for paint dripping on the stator; the paint hanging situation of the stator is monitored in real time through the paint hanging amount detection mechanism, and the action is adjusted in time according to the paint hanging situation, which significantly increases the paint hanging amount of the stator winding, improves the product yield and improves production efficiency.
[0051] The above examples are for the purpose of illustrating the embodiments disclosed by the present invention and are not to be construed as limitations of the present invention. In addition, the various modifications listed herein and the variations of methods and compositions in the invention are obvious to those skilled in the art without departing from the scope and spirit of the present invention. Although the present invention has been specifically described in conjunction with various specific preferred embodiments of the present invention, it should be understood that the present invention should not be limited to these specific embodiments. In fact, various modifications obvious to those skilled in the art as described above to obtain the invention should be included within the scope of the present invention.
Claims
1. An automatic paint dripping system, characterized in that: include: A frame (1), the frame (1) comprising a bearing surface (11) for bearing a stator; A paint supply mechanism (2) is located on one side of the frame (1) and is used to supply insulating paint to the paint dripping mechanism (3); A paint dripping mechanism (3) is arranged on the frame (1), the paint dripping mechanism (3) comprising a support frame (31) and a plurality of movable paint dripping units (32) connected to the paint supply mechanism (2), the movable paint dripping units (32) being configured to be movable relative to the support frame (31), and each of the movable paint dripping units (32) having a feeding path of the same length, for performing a paint dripping process on the stator on the bearing surface (11); and / or A control mechanism (4) is arranged on the frame (1), and the control mechanism (4) is connected to each of the movable paint dripping units (32) and is used to regulate the position and working state of each of the movable paint dripping units (32) to perform paint dripping treatment on the stator.
2. The automatic paint dripping system according to claim 1, characterized in that: The movable paint dripping unit (32) comprises a three-axis posture adjustment mechanism (321), a single screw pump (322) arranged on the three-axis posture adjustment mechanism (321) for conveying insulating paint in the paint supply mechanism (2) to the glue dripping gun (323), and a glue dripping gun (323) arranged on the single screw pump (322) for dripping paint on the stator on the bearing surface (11). The three-axis posture adjustment mechanism (321) is arranged on the support frame (31) and is used to install and adjust the single screw pump. (322); the single screw pump (322) is installed on the action end of the three-axis posture adjustment mechanism (321) through an angle adjustment component (324); the glue gun (323) is installed on the single screw pump (322), the inlet of the glue gun (323) is connected to the paint outlet of the single screw pump (322), and a feeding path for conveying insulating paint is formed between the paint inlet of the single screw pump (322) and the outlet of the glue gun (323).
3. The automatic paint dripping system according to claim 2, characterized in that: The single screw pump (322) comprises a single screw pump body, a drive motor connected to the rotor screw of the single screw pump body, and a frequency converter for controlling the rotation speed of the drive motor; the single screw pump body is provided with a paint inlet and a paint outlet; the drive motor and the frequency converter are connected to a controller, and the liquid suction amount of the single screw pump (322) is controlled by regulating the rotation speed of the rotor screw of the single screw pump (322); the paint inlet and the paint outlet are connected to a flow meter, and the flow meter is connected to the controller for regulating the liquid suction amount of the single screw pump (322).
4. The automatic paint dripping system according to claim 2, characterized in that: The three-axis posture adjustment mechanism (321) comprises a horizontally arranged X-axis posture adjustment mechanism (325), a Y-axis posture adjustment mechanism (326) slidably connected to the X-axis posture adjustment mechanism (325) and arranged in a horizontal direction, and a Z-axis posture adjustment mechanism (327) slidably connected to the Y-axis posture adjustment mechanism (326) and arranged in a vertical direction. An angle adjustment component (324) is installed at the action end of the Z-axis posture adjustment mechanism (327) for adjusting the tilt angle of the glue gun (323).
5. The automatic paint dripping system according to claim 3 is characterized in that: The angle adjustment assembly (324) comprises a connecting seat (3241), an angle adjustment rod (3242) and an adjustment disk (3243); the connecting seat (3241) is fixedly mounted on the action end of the three-axis posture adjustment mechanism (321); the connecting seat (3241) is provided with a plug hole penetrating the connecting seat (3241) along the thickness direction of the connecting seat; the angle adjustment rod (3242) is tightly inserted into the plug hole; the end of the angle adjustment rod (3242) close to the single screw pump (322) is provided with an adjustment disk (3243); the single screw pump (322) is detachably mounted on the adjustment disk (3243).
6. The automatic paint dripping system according to claim 2, characterized in that: The support frame (31) is a rectangular parallelepiped frame, comprising a first long frame side (311) and a second long frame side (312) arranged opposite to each other, two sets of movable paint dripping units (32) being arranged on the first long frame side (311), and one set of movable paint dripping units (32) being arranged on the second long frame side (312), and one of the glue dripping guns (323) on the first long frame side (311) and the glue dripping gun (323) on the second long frame side (312) being opposite to each other along the width direction of the support frame (31) and having the same inclination angle, and the other glue dripping gun (323) on the first long frame side (311) being arranged vertically.
7. The automatic paint dripping system according to claim 6, characterized in that: The two sets of glue-dropping guns (323) arranged opposite to each other along the width direction of the support frame (31) have an inclination angle of 30 to 60 degrees.
8. The automatic paint dripping system according to claim 1, characterized in that: The automatic paint dripping system further comprises a stator angle adjustment mechanism, which is connected to the control mechanism (4) and is used to clamp the stator and drive the stator to rotate.
9. The automatic paint dripping system according to claim 1, characterized in that: The automatic paint dripping system further comprises a paint amount detection mechanism, which is connected to the control mechanism (4) and is used to detect the amount of paint on the stator on the bearing surface (11).
10. A paint dripping method for a stator by an automatic paint dripping system according to any one of claims 1 to 9, characterized in that: The following steps are involved: Fix the stator to be painted on the bearing surface; Adjust the tilt angle of each glue gun; Select the drip paint formula according to the structural size of the stator, the type of insulating paint and the solid content; The control mechanism retrieves the paint dripping formula and generates corresponding operation instructions according to the selected paint dripping formula; the operation instructions are used to instruct the stator to perform corresponding operations according to the working parameters corresponding to the paint dripping formula; the paint dripping formula is stored in the internal address of the control mechanism; The control mechanism sends an operation instruction to the movable paint dispensing unit, and controls each movable paint dispensing unit to move according to the movement path set in the paint dispensing formula until the paint dispensing head of each glue dispensing gun contacts the coil on the stator; After the movable paint dripping unit moves to a certain position, the movable paint dripping unit acts according to the operation instruction and drips paint on the stator when the stator rotates; The control mechanism receives the stator paint condition detected in real time by the paint amount detection mechanism, and determines whether the stator paint dripping has reached saturation based on the stator paint condition. If it has not reached saturation, the control mechanism adjusts the paint dripping mechanism action according to the paint condition to perform correction processing on the stator paint dripping. If it has reached saturation, the controller controls the paint dripping mechanism to stop the action, heats and cures the stator, and completes the stator paint dripping.