Vertical film gluing equipment for surface of motor rotor

The design of the vertical thin-film coating equipment solved the problem of uneven coating on the motor rotor, achieving uniform coating thickness and improved coating quality, thereby increasing rotor rigidity and production efficiency.

CN224208400UActive Publication Date: 2026-05-08JSCC AUTOMATION XIAMEN
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JSCC AUTOMATION XIAMEN
Filing Date
2025-04-29
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing motor rotor gluing equipment suffers from problems such as uneven gluing, inconsistent glue layer thickness, and uneven glue distribution, which leads to reduced rotor stiffness, increased air gap, increased difficulty in dynamic balancing, and decreased heat dissipation performance.

Method used

The vertical thin-film adhesive coating equipment uses an angled adhesive head and mounting platform with an arc-shaped adhesive outlet. Combined with the linkage of the X-axis linear module, Z-axis linear module and turntable, along with a laser rangefinder and rotary cylinder, it achieves uniform adhesive coating and precise control.

Benefits of technology

This achieves uniform adhesive application, improves adhesive quality and precision, ensures consistent adhesive layer thickness, reduces the risk of equipment damage, and enhances production continuity and product quality consistency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses vertical film gluing equipment for the surface of a motor rotor, which belongs to the field of rotor gluing and comprises a mounting table, a rotary table, a vertical frame, a placing plate, an X-axis linear module, a Z-axis linear module, a mounting frame, a screw dispensing valve and a gluing head. A Z-axis linear module is fixed to the moving end of the X-axis linear module, a mounting frame is fixed to the moving end of the Z-axis linear module, the screw dispensing valve is obliquely mounted on the mounting frame, the bottom end of the screw dispensing valve is detachably connected with a gluing head, an angle is formed between the gluing head and the top face of the mounting table, and the gluing head is located above the mounting table. And an arc-shaped glue outlet is formed in the bottom end of the gluing head. The gluing head and the mounting table are arranged at an angle, the arc-shaped glue outlet is designed, and linkage of the X-axis linear module, the Z-axis linear module, the rotary table and the screw dispensing valve is matched, so that glue is uniformly and smoothly coated, and the glue amount and the glue layer thickness are accurately controlled.
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Description

Technical Field

[0001] This utility model belongs to the field of rotor coating, and in particular relates to a vertical thin film coating device for the surface of motor rotor. Background Technology

[0002] Electric motors are widely used in modern industry. The rotor plays a decisive role in the output torque, output efficiency, and operating noise of the motor system. The application of adhesive to the rotor and the mounting of the magnets is a key step. If the adhesive layer is too thick or uneven, it will lead to an increase in the air gap and a decrease in the magnetic field strength, resulting in a decrease in motor torque and efficiency. In addition, it will increase the difficulty of rotor dynamic balancing, hinder rotor heat dissipation, and reduce the overall stiffness of the rotor.

[0003] Currently, motor rotor dispensing machines on the market mainly employ a horizontal positioning method for the motor rotor (where the rotor's positioning is subject to displacement due to gravity when rotating), and a fixed, non-adjustable dispensing head. This results in insufficient precision in the relative position between the dispensing head and the motor rotor surface. To compensate for this, common dispensing methods include using brushes or flat, flexible needles to form a dispensing surface, or using capillary needles to apply large amounts of adhesive dots or lines before pressing and smoothing. However, these methods have the following problems:

[0004] 1. The adhesive applied by the needle is uneven, which can easily cause air bubbles to form when the magnets are attached, leading to an increase in the air gap and a reduction in rotor stiffness.

[0005] 2. Due to the high viscosity of the adhesive, during the application process, when a strip of adhesive is extruded, it is difficult for the adhesive to spread fully, resulting in a larger amount of adhesive being extruded than required, and the adhesive layer being thicker.

[0006] 3. The surface of the motor rotor is arc-shaped. Applying glue with a horizontal end-face needle will result in uneven glue distribution and inconsistent glue layer thickness. Summary of the Invention

[0007] The purpose of this invention is to provide a vertical thin-film coating device for the surface of motor rotors, so as to overcome at least one of the above-mentioned defects in the prior art.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] This utility model provides a vertical thin-film adhesive coating device for the surface of a motor rotor, including a mounting platform, a turntable, a stand, a placement plate, an X-axis linear module, a Z-axis linear module, a mounting frame, a screw dispensing valve, and an adhesive applicator. The turntable and the stand are fixed to the top of the mounting platform. The placement plate is fixed to the rotating end of the turntable. The X-axis linear module is fixed to the top of the stand. The Z-axis linear module is fixed to the moving end of the X-axis linear module. The mounting frame is fixed to the moving end of the Z-axis linear module. The screw dispensing valve is installed at an angle on the mounting frame. The adhesive applicator is detachably connected to the bottom end of the screw dispensing valve. The adhesive applicator is set at an angle to the top surface of the mounting platform and is located above the mounting platform. The bottom end of the adhesive applicator has an arc-shaped adhesive outlet.

[0010] Preferably, the glue applicator is positioned at an acute angle to the top surface of the mounting platform.

[0011] Preferably, the applicator head has a flat portion, and an arc-shaped dispensing nozzle is located at the bottom end of the flat portion.

[0012] Preferably, the glue applicator is made of stainless steel.

[0013] Preferably, it also includes a rotary cylinder, a connecting frame, a laser rangefinder, and a controller. The rotary cylinder is fixed to the mounting frame, and the connecting frame is installed on the rotating end of the rotary cylinder. The laser rangefinder is installed on the end of the connecting frame. The laser rangefinder is located on the left side of the dispensing head. The laser rangefinder is electrically connected to the controller. The controller is electrically connected to the turntable, the X-axis linear module, the Z-axis linear module, the rotary cylinder, and the screw dispensing valve.

[0014] Preferably, the rotary cylinder is model HRQ2, the laser rangefinder is model HG-C1030, the controller is model FPOR-C10, the turntable is model DTN130-10, the X-axis linear module is model CFG5-L5-250-BC-T100W, the Z-axis linear module is model CFG4-L5-100-BR-T100W, and the screw dispensing valve is model TDK-DY600.

[0015] Preferably, it further includes a first mounting base, a glue tube, and a pipe. The first mounting base is fixed to the mounting frame, the glue tube is mounted on the first mounting base, and the glue outlet end of the glue tube is connected to the glue inlet end of the screw dispensing valve through the pipe.

[0016] Preferably, the first mounting base includes a fixed base, a clamping arm, and a first bolt. The fixed base is fixed to the mounting frame, one end of the clamping arm is hinged to one side of the fixed base, the other side of the fixed base has a threaded groove, the other end of the clamping arm has a through hole, and the first bolt passes through the through hole and extends into the threaded groove.

[0017] Preferably, the front sidewall of the fixing base has a first groove, and the rear sidewall of the clamping arm has a second groove. The first groove and the second groove together form a limiting space for fixing the rubber tube.

[0018] Preferably, the mounting bracket includes a base plate, a second bolt, a limiting seat, a mounting rod, and a second mounting base. The limiting seat is fixed to the rear side wall of the base plate. The front end of the mounting rod passes through the limiting seat and the base plate and extends to the front side of the base plate where the second mounting base is fixed. The second bolt is screwed into the limiting seat to fix the mounting rod. The screw dispensing valve is installed on the second mounting base.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. By setting the glue applicator at an angle to the mounting platform and designing an arc-shaped glue outlet, and by coordinating the X-axis linear module, Z-axis linear module and turntable, uniform and smooth glue application is achieved, and the glue amount and glue layer thickness are precisely controlled, effectively improving the glue application quality and precision.

[0021] 2. The glue applicator is positioned at an acute angle to the top surface of the mounting platform. This reduces the adhesive resistance and prevents localized glue buildup during the application process.

[0022] 3. When applying adhesive to the rotor surface, the flat part can be placed along the tangent of the arc surface, so that the arc-shaped adhesive outlet is closer to the rotor surface, thereby ensuring that the adhesive is evenly applied to the arc surface of the rotor and improving the uniformity and integrity of the adhesive layer.

[0023] 4. Because the arc-shaped dispensing nozzle is located at the bottom of the flat part, the glue is restricted and guided by the flat part when it flows out, and will not flow or accumulate around the needle. This helps to control the amount of glue, so that the glue is squeezed out more evenly from the arc-shaped dispensing nozzle, reducing the possibility of glue forming droplets or clumps at the needle, thereby improving the quality and efficiency of glue application.

[0024] 5. The glue applicator is made of stainless steel. Stainless steel has a certain strength, which can keep the thickness of the glue application from changing due to glue pressure.

[0025] 6. The laser rangefinder monitors and transmits distance data to the controller, precisely controlling the X-axis linear module to ensure consistent adhesive layer thickness and solve the problem of uneven adhesive application. At the same time, the rotary cylinder drives the laser rangefinder to swing upward before the X-axis linear module moves, avoiding interference and collision, reducing the risk of equipment damage, and improving production continuity.

[0026] 7. The rubber sleeve can be replaced by loosening or tightening the first bolt, which is convenient.

[0027] 8. The tilt angle of the screw dispensing valve can be adjusted according to different needs, and the operation is convenient. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the main structure of this utility model (with a rotor placed on it).

[0029] Figure 2 This is a three-dimensional structural diagram of the present invention (with a rotor placed on it, but the pipes are not shown).

[0030] Figure 3 This is a three-dimensional structural diagram of the glue applicator of this utility model.

[0031] Figure 4 This is a three-dimensional structural diagram of the mounting bracket and its structure according to this utility model.

[0032] Figure 5 This is a three-dimensional exploded structural diagram of the first mounting base of this utility model.

[0033] Figure 6 This is the control block diagram of this utility model.

[0034] The labels in the attached diagram are as follows: 1-Mounting platform, 2-Turntable, 3-Upright frame, 4-Placement plate, 5-X-axis linear module, 6-Z-axis linear module, 7-Mounting bracket, 8-Screw dispensing valve, 9-Applying head, 91-Arc-shaped dispensing nozzle, 92-Flat section, 10-Rotary cylinder, 11-Connecting bracket, 12-Laser rangefinder sensor, 13-Controller, 14-First mounting seat, 15-Glue tube, 16-Pipe, 141-Fixed seat, 142-Clamping arm, 143-First bolt, 144-Threaded groove, 145-Through hole, 146-First groove, 147-Second groove, 71-Base plate, 72-Second bolt, 73-Limiting seat, 74-Mounting rod, 75-Second mounting seat. Detailed Implementation

[0035] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0036] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] like Figures 1 to 6As shown, this embodiment provides a vertical thin-film adhesive coating device for the surface of a motor rotor, including a mounting platform 1, a turntable 2, a stand 3, a placement plate 4, an X-axis linear module 5, a Z-axis linear module 6, a mounting frame 7, a screw dispensing valve 8, and an adhesive head 9. The turntable 2 and the stand 3 are fixed to the top of the mounting platform 1. The placement plate 4 is fixed to the rotating end of the turntable 2. The X-axis linear module 5 is fixed to the top of the stand 3. The Z-axis linear module 6 is fixed to the moving end of the X-axis linear module 5. The mounting frame 7 is fixed to the moving end of the Z-axis linear module 6. The screw dispensing valve 8 is installed obliquely on the mounting frame 7. The adhesive head 9 is detachably connected to the bottom end of the screw dispensing valve 8. In this embodiment, the detachable connection is achieved through a threaded connection. The adhesive head 9 is angled relative to the top surface of the mounting platform 1 and is located above the mounting platform 1. The bottom end of the adhesive head 9 has an arc-shaped adhesive outlet 91. During adhesive application, the rotor is placed on the placement plate 4. The distance between the adhesive application head 9 and the outer surface of the rotor is adjusted by the X-axis linear module 5. The rotor rotates by the rotation of the turntable 2, and the vertical movement of the Z-axis linear module 6 achieves vertical thin-film adhesive application on the rotor surface. The angle setting allows the adhesive to flow more smoothly to the surface of the motor rotor under the combined action of gravity and needle tilt. Especially for high-viscosity adhesives, it reduces the problem of poor dispensing caused by adhesive accumulation at the needle, allowing the adhesive to be applied more evenly to the rotor surface. This helps control the amount of adhesive and the thickness of the adhesive layer, avoiding excessive amount or excessive thickness. The arc-shaped adhesive outlet 91 matches the arc-shaped surface shape of the motor rotor, better conforming to its contour. During adhesive application, the adhesive can be distributed more evenly on the rotor surface, avoiding uneven adhesive amount and inconsistent thickness, thereby improving the adhesive application quality. Furthermore, compared to ordinary straight glue outlets, the arc-shaped glue outlet 91 allows the glue to flow out more stably under the action of surface tension, which helps to achieve micro-volume and uniform glue application and meet the requirements of high-precision glue application.

[0038] The adhesive applicator 9 is positioned at an acute angle to the top surface of the mounting platform 1. This reduces the viscous resistance of the adhesive and prevents localized adhesive buildup during the application process.

[0039] The applicator head 9 has a flat portion 92, with an arc-shaped dispensing nozzle 91 located at the bottom end of the flat portion 92. When applying adhesive to the rotor surface, the flat portion 92 can be positioned along the tangent of the arc surface, allowing the arc-shaped dispensing nozzle 91 to be closer to the rotor surface. This ensures that the adhesive is evenly applied to the rotor's arc surface, improving the uniformity and integrity of the adhesive layer. Because the arc-shaped dispensing nozzle 91 is located at the bottom end of the flat portion 92, the adhesive flow is restricted and guided by the flat portion 92, preventing it from flowing or accumulating around the nozzle. This helps control the amount of adhesive, allowing it to be extruded more evenly from the arc-shaped dispensing nozzle 91, reducing the possibility of adhesive forming droplets or clumps at the nozzle, thereby improving the quality and efficiency of the adhesive application.

[0040] The glue applicator 9 is made of stainless steel, which has a certain strength and can keep the thickness of the glue application from changing due to glue pressure.

[0041] The system includes a rotary cylinder 10, a connecting frame 11, a laser rangefinder 12, and a controller 13. The rotary cylinder 10 is fixed to the mounting frame 7. The connecting frame 11 is mounted on the rotating end of the rotary cylinder 10, and the laser rangefinder 12 is mounted on the end of the connecting frame 11. The laser rangefinder 12 is located on the left side of the dispensing head 9 and is electrically connected to the controller 13. The controller 13 is electrically connected to the turntable 2, the X-axis linear module 5, the Z-axis linear module 6, the rotary cylinder, and the screw dispensing valve 8. The laser rangefinder 12 monitors the distance between itself and the motor rotor and transmits the data to the controller 13. Based on the received distance information, the controller 13 precisely controls the leftward movement of the X-axis linear module 5 and dynamically adjusts the position of the dispensing head 9 to ensure that the thickness of the adhesive layer applied to the surface of the motor rotor always meets the process requirements. This effectively solves the problem of uneven adhesive application caused by rotor size differences and installation errors, and improves product quality consistency. Before the X-axis linear module 5 moves, the rotary cylinder 10 rotates, causing the connecting frame 11 and the laser rangefinder 12 mounted on it to swing upwards, thus removing them from the glue application area in time. This design effectively avoids interference from the laser rangefinder 12 on the movement of the glue application head 9, prevents the laser rangefinder 12 from colliding with the rotating rotor, reduces the risk of equipment damage, minimizes downtime due to equipment failure, and improves production continuity.

[0042] Among them, the rotary cylinder 10 is model HRQ2, the laser rangefinder 12 is model HG-C1030, the controller 13 is model FPOR-C10, the turntable 2 is model DTN130-10, the X-axis linear module 5 is model CFG5-L5-250-BC-T100W, the Z-axis linear module is model CFG4-L5-100-BR-T100W, and the screw dispensing valve 8 is model TDK-DY600.

[0043] The system includes a first mounting base 14, a glue cartridge 15, and a pipe 16. The first mounting base 14 is fixed to the mounting frame 7, and the glue cartridge 15 is mounted on the first mounting base 14. The glue outlet end of the glue cartridge 15 is connected to the glue inlet end of the screw dispensing valve 8 through the pipe 16. Specifically, the first mounting base 14 includes a fixing base 141, a clamping arm 142, and a first bolt 143. The fixing base 141 is fixed to the mounting frame 7. The right end of the clamping arm 142 is hinged to the right side of the fixing base 141. The left side of the fixing base 141 has a threaded groove 144, and the left end of the clamping arm 142 has a through hole 145. The first bolt 143 passes through the through hole 145 and extends into the threaded groove 144. The front sidewall of the fixing base 141 has a first groove 146, and the rear sidewall of the clamping arm 142 has a second groove 147. The first groove 146 and the second groove 147 together form a limiting space for fixing the glue cartridge 15. The rubber sleeve 15 can be replaced by loosening or tightening the first bolt 143, which is easy to do.

[0044] The mounting bracket 7 includes a base plate 71, a second bolt 72, a limiting seat 73, a mounting rod 74, and a second mounting base 75. The limiting seat 73 is fixed to the rear side wall of the base plate 71. The front end of the mounting rod 74 passes through the limiting seat 73 and the base plate 71, and extends to the front side of the base plate 71 where the second mounting base 75 is fixed. The second bolt 72 is screwed into the limiting seat 73 to fix the mounting rod 74. The screw dispensing valve 8 is mounted on the second mounting base 75. When it is necessary to adjust the tilt angle of the screw dispensing valve 8, loosen the second bolt 72, then rotate the mounting rod 74 to rotate the second mounting base 75, causing the screw dispensing valve 8 to rotate and adjust its tilt angle. After adjustment, tighten the second bolt 72. The tilt angle of the screw dispensing valve 8 can be adjusted according to different needs, and the operation is convenient.

[0045] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A vertical thin-film coating device for the surface of an electric motor rotor, characterized in that: Includes mounting platform, turntable, stand, placement plate, X-axis linear module, Z-axis linear module, mounting bracket, screw dispensing valve, and dispensing head; The top of the mounting platform is fixed with a turntable and a stand; A placement plate is fixed to the rotating end of the turntable; An X-axis linear module is fixed to the top of the support frame, and a Z-axis linear module is fixed to the moving end of the X-axis linear module. The moving end of the Z-axis linear module is fixed with a mounting bracket, the screw dispensing valve is installed obliquely on the mounting bracket, and the bottom end of the screw dispensing valve is detachably connected to an applicator head. The glue applicator is angled to the top surface of the mounting platform and is located above the mounting platform. The bottom end of the applicator head has an arc-shaped glue outlet.

2. The vertical thin-film coating equipment for motor rotor surface according to claim 1, characterized in that: The adhesive applicator is positioned at an acute angle to the top surface of the mounting platform.

3. The vertical thin-film coating equipment for motor rotor surface according to claim 1, characterized in that: The applicator head has a flat portion, and an arc-shaped dispensing nozzle is located at the bottom end of the flat portion.

4. The vertical thin-film coating equipment for motor rotor surface according to claim 1, characterized in that: The adhesive applicator is made of stainless steel.

5. The vertical thin-film coating equipment for motor rotor surface according to claim 1, characterized in that: It also includes a rotary cylinder, a connecting frame, a laser rangefinder, and a controller; The rotary cylinder is fixed to the mounting bracket; A connecting frame is installed on the rotating end of the rotary cylinder, and a laser rangefinder is installed at the end of the connecting frame. The laser rangefinder is located on the left side of the dispensing head. The laser rangefinder is electrically connected to the controller, and the controller is electrically connected to the turntable, the X-axis linear module, the Z-axis linear module, the rotary cylinder, and the screw dispensing valve.

6. The vertical thin-film coating equipment for motor rotor surface according to claim 5, characterized in that: The rotary cylinder is model HRQ2; The laser rangefinder sensor is model HG-C1030; The controller is model FPOR-C10; The model of the turntable is DTN130-10; The model of the X-axis linear module is CFG5-L5-250-BC-T100W; The model of the Z-axis linear module is CFG4-L5-100-BR-T100W; The screw dispensing valve is model TDK-DY600.

7. The vertical thin-film coating equipment for motor rotor surface according to claim 1, characterized in that: It also includes a first mounting base, a rubber sleeve, and pipes; The first mounting base is fixed to the mounting bracket; The rubber sleeve is installed on the first mounting base; The dispensing end of the glue cartridge is connected to the inlet end of the screw dispensing valve via a pipe.

8. The vertical thin-film coating equipment for motor rotor surface according to claim 7, characterized in that: The first mounting base includes a fixed base, a clamping arm, and a first bolt; The fixing base is fixed to the mounting bracket; One end of the clamping arm is hinged to one side of the fixing base, and the other side of the fixing base has a threaded groove; The other end of the clamping arm has a through hole through which the first bolt passes and extends into the threaded groove.

9. The vertical thin-film coating equipment for motor rotor surface according to claim 8, characterized in that: The front sidewall of the fixing seat has a first groove, and the rear sidewall of the clamping arm has a second groove. The first groove and the second groove together form a limiting space for fixing the rubber tube.

10. The vertical thin-film coating equipment for motor rotor surface according to claim 1, characterized in that: The mounting frame includes a base plate, a second bolt, a limiting seat, a mounting rod, and a second mounting base; A limiting seat is fixed to the rear side wall of the substrate, and the front end of the mounting rod passes through the limiting seat and the substrate, and extends to the front side of the substrate where a second mounting seat is fixed. The second bolt is screwed into the limiting seat to fix the mounting rod, and the screw dispensing valve is installed on the second mounting seat.