A direct current motor rotor winding device

Abstract

The utility model discloses a direct current motor rotor winding device, including the bottom plate, the upper end fixed support frame of bottom plate, the upper end one side of support frame is installed pneumatic push mechanism, one end of pneumatic push mechanism is connected with the blocking mechanism, the upper end other side of support frame is installed with pneumatic adjusting mechanism, and the rotation equipment is installed on pneumatic adjusting mechanism, the pneumatic push mechanism includes the first cylinder of installing in support frame upper end one side, and the piston rod end of first cylinder is fixed with the connecting plate, the blocking mechanism includes the round baffle of fixing in one side of connecting plate, and the middle part of round baffle is equipped with the opening. The utility model from passive protection to active safety, with pneumatic execution, servo control, mechanical protection and automation integrated fusion, effectively curb the flying wire harm, and the safety greatly promotes, and the modular architecture is convenient for maintenance dismounting, and the popularization range is improved.

Description

Technical Field

[0001] This utility model relates to the field of DC motor rotor winding technology, and in particular to a DC motor rotor winding device. Background Technology

[0002] In the manufacturing process of DC motors, rotor winding is one of the core processes that determines motor performance. Traditional manual or semi-automatic winding methods have the following drawbacks: 1. High safety risk: The sudden change in tension during high-speed winding of copper wire can easily lead to breakage. After the wire breaks, it will fly at high speed due to the release of elasticity, which may cut the operator's eyes or skin. 2. Unstable rotor positioning: Insufficient rigidity or poor alignment of the clamping mechanism can cause axial displacement or even dislocation of the rotor during winding, which may affect the winding quality or even cause equipment collision accidents.

[0003] To address this problem, we propose a DC motor rotor winding device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a DC motor rotor winding device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A DC motor rotor winding device includes a base plate, a support frame fixed to the upper end of the base plate, a pneumatic pushing mechanism installed on one side of the upper end of the support frame, a blocking mechanism connected to one end of the pneumatic pushing mechanism, a pneumatic adjusting mechanism installed on the other side of the upper end of the support frame, and a rotating device installed on the pneumatic adjusting mechanism. The pneumatic pushing mechanism includes a first cylinder installed on one side of the upper end of the support frame, and a connecting plate is fixed to the end of the piston rod of the first cylinder; The blocking mechanism includes a circular baffle fixed to one side of the connecting plate, and the circular baffle has an opening in the middle. The pneumatic adjustment mechanism includes a second cylinder fixed to one side of the support frame. The piston rod of the second cylinder is fixed to a mounting seat, and the lower end of the mounting seat is slidably connected to the upper end of the support frame.

[0006] Preferably, a bearing plate is fixed to one side of the upper end of the support frame, and a connector is rotatably connected to one side of the bearing plate, with the opening corresponding to the bearing plate.

[0007] Preferably, a fixing plate is fixed to one side of the upper end of the support frame, and the first cylinder is mounted on the fixing plate.

[0008] Preferably, the rotating device includes a servo motor fixed to one side of the mounting base, the output shaft of the servo motor passing through the side wall of the mounting base and extending to one side of the mounting base, and a clamp body connected to the end of the output shaft of the servo motor, the clamp body and the connector corresponding to each other.

[0009] Preferably, a T-shaped groove is provided on one side of the upper end of the support frame, and a T-shaped slider is fixed at the lower end of the mounting base, the T-shaped slider being engaged in the T-shaped groove.

[0010] Preferably, the base plate has mounting holes at all four corners of its upper end.

[0011] In this utility model, when in use: Phase 1: Loading Phase—Achieving rapid and centered rotor clamping The robotic arm sends the rotor to be wound into the work station and inserts it into the fixture body. The fixture automatically closes and locks one end of the rotor. The second cylinder is activated, pushing the mounting base, along with the servo motor and the fixture as a whole, to move towards the support plate. The other end of the rotor is accurately inserted into the connector, forming a double-end support structure. At this point, the rotor is fully positioned, and the axis remains parallel to the winding head. The "floating docking" design allows for an assembly tolerance of ±1-2mm, improving compatibility. The pneumatic drive is smooth and controllable, avoiding impact damage to the commutator. Phase Two: Protection Activation—Building a Physical Security Barrier The piston rod of the first cylinder extends, driving the connecting plate and the circular baffle to move forward. The circular baffle is close to the side of the bearing plate, leaving only the central opening for the rotor to pass through. The entire winding area is partially enclosed, effectively blocking any flying copper wire fragments or broken wires, achieving "interlock protection"—the system is only allowed to start the winding program after the protection is in place, which meets the requirements of "protection interlock" in mechanical safety regulations. Phase 3: Synchronous winding—High-precision winding under multi-axis coordination The servo motor starts, driving the rotor to rotate at a constant speed. The external robot carries the double-sided winding head and leads the wire to the commutator hook slot according to the preset path. The winding head rises and falls in the Z-axis direction according to a sine or trapezoidal curve to form a spiral arrangement. The built-in tension sensor monitors the copper wire tension in real time. If abnormal fluctuations occur (such as the wire about to break), an alarm is immediately triggered and the system is paused. The control system records the current number of revolutions and determines whether to enter the next layer. Phase Four: Reversal and Stacking—Automated Hierarchical Transition and Compaction Processing After a single layer of winding is completed, the stepper motor drives the winding head to rotate 15° and switch to the next hook slot. At the same time, the pressing mechanism descends to press the wound coil to prevent it from loosening. A new layer begins to be wound, and the starting position of the Z-axis is adjusted accordingly to avoid overlapping. This process is repeated until the set number of layers is reached. Phase 5: Unloading and Resetting – Safe Exit and Preparation for the Next Cycle Once the winding is complete, the servo motor stops, the tension is released, the second cylinder retracts, causing the mounting base to move backward, disengaging the fixture body from the connector. Simultaneously, the first cylinder retracts, the circular baffle returns to its original position, opening the operating space. The robotic arm enters, removes the finished rotor, and after the system self-checks and finds no errors, it prepares to load the next workpiece.

[0012] This utility model has the following advantages: 1. The dynamic pneumatic protective cover effectively curbs injuries from flying wires, greatly improving safety; 2. Servo precision speed control, tension closed-loop, and automatic slot changing improve product quality; 3. Modular design, each unit can be independently disassembled and assembled, making maintenance convenient; In summary, this utility model integrates pneumatic actuation, servo control, mechanical protection, and automation, moving from passive protection to active safety. This effectively curbs injuries from flying wires and greatly improves safety. At the same time, its modular architecture facilitates maintenance and disassembly, expanding its application scope. Attached Figure Description

[0013] Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the first cylinder of this utility model; Figure 3 for Figure 2 Enlarged view of the structure at point A.

[0014] In the diagram: 101 base plate, 102 support frame, 103 mounting hole, 201 first cylinder, 202 fixing plate, 203 circular baffle, 204 connecting plate, 205 opening, 301 bearing plate, 302 connector, 401 servo motor, 402 mounting base, 403 fixture body, 501 second cylinder, 502 T-shaped slider, 503 T-shaped slide groove. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-3 A DC motor rotor winding device includes a base plate 101, a support frame 102 fixed to the upper end of the base plate 101, a pneumatic pushing mechanism installed on one side of the upper end of the support frame 102, a blocking mechanism connected to one end of the pneumatic pushing mechanism, a pneumatic adjusting mechanism installed on the other side of the upper end of the support frame 102, and a rotating device installed on the pneumatic adjusting mechanism. The base plate 101 serves as a basic bearing platform, and mounting holes 103 are provided at the four corners for easy fixing to the production line or a special tooling table. The pneumatic pushing mechanism includes a first cylinder 201 installed on one side of the upper end of the support frame 102, and a connecting plate 204 is fixed to the end of the piston rod of the first cylinder 201; The blocking mechanism includes a circular baffle 203 fixed to one side of the connecting plate 204. The circular baffle 203 has an opening 205 in the middle. The circular baffle 203 closes the winding area under the push of the first cylinder 201, leaving only the central opening for the rotor to pass through. The pneumatic adjustment mechanism includes a second cylinder 501 fixed to one side of the support frame 102. The piston rod end of the second cylinder 501 is fixed with a mounting seat 402. The lower end of the mounting seat 402 is slidably connected to the upper end of the support frame 102. The second cylinder 501 drives the mounting seat 402 to move along the T-shaped slide groove to complete the rotor docking action. The pneumatic system is equipped with a combination of a proportional pressure regulating valve and a throttle valve, which can automatically adjust the cylinder output thrust according to the rotor length to prevent the long shaft rotor from being bent and deformed due to excessive force. A displacement sensor is set at the end of the piston rod to realize closed-loop position monitoring and ensure that the docking endpoint is consistent each time. A bearing plate 301 is fixed on one side of the upper end of the support frame 102. A connector 302 is rotatably connected to one side of the bearing plate 301. The opening 205 corresponds to the bearing plate 301. The connector 302 and the bearing plate 301 are connected by an elastic coupling. A fixing plate 202 is fixed to one side of the upper end of the support frame 102, and the first cylinder 201 is installed on the fixing plate 202; The rotating device includes a servo motor 401 fixed on one side of the mounting base 402. The servo motor is set to a constant speed for the main shaft. The output shaft of the servo motor 401 passes through the side wall of the mounting base 402 and extends to one side of the mounting base 402. The end of the output shaft of the servo motor 401 is connected to a clamp body 403. The clamp body 403 corresponds to the connector 302. The clamp body 403 integrates a three-jaw self-centering chuck structure. With the feedback signal from the servo motor, the clamping torque can be dynamically adjusted during the closing process to ensure that rotors of different diameters can achieve concentric rotation. The upper side of the support frame 102 is provided with a T-shaped slide groove 503, and the lower end of the mounting base 402 is fixed with a T-shaped slider 502. The T-shaped slider 502 is engaged in the T-shaped slide groove 503. The T-shaped slide groove 503 and the T-shaped slider 502 cooperate to ensure that the mounting base 402 moves smoothly along a straight line.

[0017] In this utility model, when in use: Phase 1: Loading Phase—Achieving rapid and centered rotor clamping The robotic arm sends the rotor to be wound into the work station and inserts it into the fixture body 403. The fixture automatically closes and locks one end of the rotor. The second cylinder 501 is started, pushing the mounting base 402, along with the servo motor and the fixture as a whole, to move towards the bearing plate. The other end of the rotor is accurately inserted into the connector 302, forming a double-end support structure. At this point, the rotor is fully positioned, and the axis remains parallel to the winding head. The "floating docking" design allows for an assembly tolerance of ±1-2mm, improving compatibility. The pneumatic drive is smooth and controllable, avoiding impact damage to the commutator. Phase Two: Protection Activation—Building a Physical Security Barrier The piston rod of the first cylinder 201 extends, driving the connecting plate 204 and the circular baffle 203 to move forward. The circular baffle is close to the side of the bearing plate 301, leaving only the central opening 205 for the rotor to pass through. The entire winding area is partially enclosed, effectively blocking any flying copper wire fragments or broken wires, achieving "interlock protection"—the system is only allowed to start the winding program after the protection is in place, which meets the requirements of "protection interlock" in mechanical safety regulations. Phase 3: Synchronous winding—High-precision winding under multi-axis coordination Servo motor 401 starts, driving the rotor to rotate at a constant speed. The external robot carries the double-sided winding head and leads the wire to the commutator hook slot according to the preset path. The winding head rises and falls in the Z-axis direction according to a sine or trapezoidal curve to form a spiral arrangement. The built-in tension sensor monitors the copper wire tension in real time. If abnormal fluctuations occur (such as the wire is about to break), an alarm is immediately triggered and the system is paused. The control system records the current number of revolutions and determines whether to enter the next layer. Phase Four: Reversal and Stacking—Automated Hierarchical Transition and Compaction Processing After a single layer of winding is completed, the stepper motor drives the winding head to rotate 15° and switch to the next hook slot. At the same time, the pressing mechanism descends to press the wound coil to prevent it from loosening. A new layer begins to be wound, and the starting position of the Z-axis is adjusted accordingly to avoid overlapping. This process is repeated until the set number of layers is reached. Phase 5: Unloading and Resetting – Safe Exit and Preparation for the Next Cycle Once the winding is complete, the servo motor stops, the tension is released, the second cylinder retracts, causing the mounting base to move backward, disengaging the fixture body from the connector. Simultaneously, the first cylinder retracts, the circular baffle returns to its original position, opening the operating space. The robotic arm enters, removes the finished rotor, and after the system self-checks and finds no errors, it prepares to load the next workpiece.

[0018] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A DC motor rotor winding device, comprising a base plate (101), characterized in that, A support frame (102) is fixed to the upper end of the base plate (101). A pneumatic pushing mechanism is installed on one side of the upper end of the support frame (102). A blocking mechanism is connected to one end of the pneumatic pushing mechanism. A pneumatic adjusting mechanism is installed on the other side of the upper end of the support frame (102). A rotating device is installed on the pneumatic adjusting mechanism. The pneumatic pushing mechanism includes a first cylinder (201) installed on one side of the upper end of the support frame (102), and a connecting plate (204) is fixed to the end of the piston rod of the first cylinder (201). The blocking mechanism includes a circular baffle (203) fixed to one side of the connecting plate (204), and the circular baffle (203) has an opening (205) in the middle. The pneumatic adjustment mechanism includes a second cylinder (501) fixed on one side of the support frame (102). The piston rod end of the second cylinder (501) is fixed with a mounting seat (402), and the lower end of the mounting seat (402) is slidably connected to the upper end of the support frame (102).

2. The DC motor rotor winding device according to claim 1, characterized in that: A bearing plate (301) is fixed on one side of the upper end of the support frame (102), and a connector (302) is rotatably connected to one side of the bearing plate (301). The opening (205) corresponds to the bearing plate (301).

3. The DC motor rotor winding device according to claim 1, characterized in that: A fixing plate (202) is fixed on one side of the upper end of the support frame (102), and the first cylinder (201) is mounted on the fixing plate (202).

4. A DC motor rotor winding device according to claim 1 or 2, characterized in that: The rotating device includes a servo motor (401) fixed on one side of the mounting base (402). The output shaft of the servo motor (401) passes through the side wall of the mounting base (402) and extends to one side of the mounting base (402). The end of the output shaft of the servo motor (401) is connected to a clamp body (403). The clamp body (403) and the connector (302) correspond to each other.

5. A DC motor rotor winding device according to claim 1, characterized in that: The support frame (102) has a T-shaped groove (503) on one side of its upper end, and a T-shaped slider (502) is fixed at the lower end of the mounting base (402). The T-shaped slider (502) is engaged in the T-shaped groove (503).

6. The DC motor rotor winding device according to claim 1, characterized in that: The base plate (101) has mounting holes (103) at its four upper corners.

Images