A kind of assembly device of micro motor coil

Abstract

The utility model discloses an assembly device for a micro motor coil, belonging to the technical field of motor assembly. An assembly device for a micro motor coil comprises a mobile platform, a support frame is fixedly mounted on the mobile platform, a motor is fixedly mounted on the support frame, a winding unit is mounted on the output end of the motor through a coupling, a digital counter is fixed on the support frame, a trigger mechanism and a stop arm are mounted inside the support frame, the stop arm can rotate on the support frame, and is used to limit the continued rotation of the winding unit after the coil is wound with an agreed number of turns; the utility model starts winding by driving the winding unit, and when the coil wound by the winding unit reaches a predetermined number of turns, the digital counter sends a signal to the trigger mechanism, the trigger mechanism is actuated, and the stop arm is rotated, and the stop arm limits the continued rotation of the winding unit and stops the winding operation, thereby ensuring the accuracy of the number of winding turns and avoiding errors in manual counting.

Description

Technical Field

[0001] The utility model relates to the technical field of motor assembly, in particular to an assembly device for a micro motor coil. Background Art

[0002] The assembly of micro motor coils refers to assembling the coil components in a micro motor with other components to build a micro motor. Micro motors are widely used in various electronic devices and micro mechanical systems, such as mobile phone vibration motors, micro fans, medical devices, and drones. These devices usually require small, lightweight, efficient and stable micro motors to drive them, so the assembly of micro motor coils is a crucial step in the manufacture of these devices.

[0003] In order to improve the efficiency and quality of micro motor coil assembly, automated assembly equipment has gradually been introduced into the production process. Existing automated assembly equipment mainly includes coil winding devices, insulation processing devices and welding devices. However, these devices still have some technical problems in practical applications. For example, when processing micro coils, existing coil winding devices often face challenges such as small wires, difficult to control winding speed and accuracy, resulting in unsatisfactory winding effects. Utility Model Content

[0004] The utility model aims to solve the problems in the prior art that the wire is thin and the winding speed and precision are difficult to control, and proposes an assembly device for a micro motor coil.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A micro motor coil assembly device comprises a mobile platform, a support frame is fixedly mounted on the mobile platform, a motor is fixedly mounted on the support frame, a winding unit is mounted on the output end of the motor via a coupling, a digital counter is fixed on the support frame, a trigger mechanism and a stop arm are mounted inside the support frame, the stop arm can rotate on the support frame, and is used to limit the continued rotation of the winding unit after the coil is wound with an agreed number of turns.

[0007] In order to perform a logical operation on the output signal of the digital counter to determine whether to trigger the electromagnet, preferably, the trigger mechanism includes: an electromagnet, which is used to attract the barrier arm after being energized; a signal processor, which is used to perform a logical operation on the output signal of the digital counter to determine whether to trigger the electromagnet; and a driver, which is used to turn on the circuit of the electromagnet.

[0008] In order to make the digital counter restart counting after reaching a certain count, further, a reset circuit is included to make the digital counter restart counting after reaching a certain count.

[0009] In order to effectively protect the trigger mechanism, further, the support frame has a accommodating cavity, the trigger mechanism is installed in the accommodating cavity, a groove is opened on the cavity wall of the accommodating cavity, and the barrier arm is rotatably installed on the bottom groove surface of the groove through an elastic member.

[0010] In order to reduce the impact damage of the winding unit, further, a buffer pad is installed at one end of the blocking arm located outside the accommodating cavity through an elastic member.

[0011] In order to improve the convenience and flexibility of operation, preferably, the winding unit includes: a horizontal rod having symmetrically arranged slide grooves; a mold slidably installed in the slide grooves on the horizontal rod, having equidistantly arranged winding grooves, and a handle is fixedly installed on one end of the mold away from the horizontal rod; a vertical shaft, welded and fixed to the horizontal rod and located at the center of the horizontal rod; a preload member fixed on the horizontal rod, and the movable end of the preload member is fixedly connected to the mold.

[0012] Compared with the prior art, the utility model provides an assembly device for a micro motor coil, which has the following beneficial effects:

[0013] 1. The assembly device of the micro motor coil starts winding by driving the winding unit through the motor, and the digital counter starts to record the number of turns of the winding. When the coil wound by the winding unit reaches a predetermined number of turns, the digital counter sends a signal to the trigger mechanism, the trigger mechanism acts, and the blocking arm rotates. The blocking arm limits the continued rotation of the winding unit and stops the winding operation. After completing the winding of one coil, the blocking arm and the counter are manually or automatically reset to prepare for the next winding operation, thereby ensuring the accuracy of the number of winding turns, avoiding errors caused by manual counting, improving the consistency and quality of the coil, and reducing the problem of the winding stopping position being half a turn more or less by blocking the blocking arm.

[0014] 2. The assembly device of the micro motor coil, before winding, first put the specimen between the two molds to determine the winding specifications, and then wind the coil. The coil is first wound on the vertical shaft to be fixed, and then driven by the motor to wind. After winding the specified number of turns, the operator can pinch the two handles to bring the two molds closer, which is convenient for demolding, improving the convenience and flexibility of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The main view of the overall structure of a micro motor coil assembly device proposed by the utility model Figure 1 ;

[0016] Figure 2 The main view of the overall structure of a micro motor coil assembly device proposed by the utility model Figure 2 ;

[0017] Figure 3 A schematic diagram of the internal structure of a receiving cavity of an assembly device for a micro motor coil proposed by the utility model;

[0018] Figure 4 A schematic diagram of the structure of a winding unit of a micro motor coil assembly device proposed by the utility model;

[0019] Figure 5 The present invention is a schematic diagram of the structure of a pre-tightening component of an assembly device for a micro motor coil proposed by the present invention.

[0020] In the figure: 1. mobile platform; 2. support frame; 201. accommodating cavity; 202. notch; 203. torsion spring; 3. motor; 4. winding unit; 401. horizontal rod; 402. slide groove; 403. mold; 404. winding groove; 405. handle; 406. vertical shaft; 407. preload member; 408. sleeve; 409. movable rod; 410. second spring; 5. digital counter; 6. trigger mechanism; 601. electromagnet; 602. signal processor; 603. driver; 604. reset circuit; 7. stop arm; 701. buffer pad; 702. first spring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0023] Example:

[0024] Reference Figure 1-Figure 5A micro motor coil assembly device includes a mobile platform 1 for supporting and moving the entire assembly device so that it can be freely positioned on a production line or a workbench. A support frame 2 is fixedly installed on the mobile platform 1 to provide stable structural support. A motor 3 is fixedly installed on the support frame 2. A winding unit 4 is installed at the output end of the motor 3 through a coupling to realize the winding operation of the coil. A digital counter 5, model CD4017, is fixed on the support frame 2 to record the number of turns of the coil. A trigger mechanism 6 and a stop arm 7 are installed in the support frame 2. The stop arm 7 can rotate on the support frame 2 to limit the continued rotation of the winding unit 4 after the coil is wound with an agreed number of turns.

[0025] The present embodiment is a micro motor coil assembly device, which places the device on a workbench, adjusts the position of the device by moving the platform 1, ensures that the motor 3 and the winding unit 4 are correctly installed and connected, starts the motor 3, drives the winding unit 4 through the coupling to start winding, and the digital counter 5 starts to record the number of turns of the winding. When the coil wound by the winding unit 4 reaches a predetermined number of turns, the digital counter 5 sends a signal to the trigger mechanism 6, the trigger mechanism 6 is actuated, and the blocking arm 7 is rotated. The blocking arm 7 limits the continued rotation of the winding unit 4 and stops the winding operation. After completing the winding of one coil, the blocking arm 7 and the counter are manually or automatically reset to prepare for the next winding operation, thereby ensuring the accuracy of the number of winding turns, avoiding errors in manual counting, and improving the consistency and quality of the coil. In addition, the blocking of the blocking arm 7 reduces the problem of half a turn more or less at the winding stop position.

[0026] Each structure is described in detail below according to the accompanying drawings.

[0027] Reference Figure 3 The trigger mechanism 6 includes: an electromagnet 601, which is used to attract the blocking arm 7 after being energized.

[0028] The signal processor 602 is used to perform a logic operation on the output signal of the digital counter 5 to determine whether to trigger the electromagnet 601 .

[0029] The driver 603 is used to turn on the circuit of the electromagnet 601 .

[0030] It also includes a reset circuit 604, which enables the digital counter 5 to restart counting when it reaches a certain count.

[0031] Through the setting of the above structure, a certain output of the digital counter 5, such as the Nth counting output, is selected as a trigger signal. When the counter reaches this state, the output signal is high level, and the signal processor 602, such as (AND gate), is used to perform logic operations on the output signal and other conditional signals, such as system status signals, to determine whether to trigger the electromagnet 601. A transistor or relay is used as the driver 603 of the electromagnet 601, and the output signal of the digital counter 5 is connected to the base of the transistor through a resistor. When the output signal is high level, the transistor is turned on, the electromagnet 601 is energized to attract the blocking arm 7, the motor 3 is powered off, and the end of the blocking arm 7 away from the electromagnet 601 is biased to the bottom of the winding unit 4 to block, and the problem of reducing the winding stop position by more or less than half a circle occurs. At a suitable position, the digital counter 5 is reset after reaching a certain count, so that it starts counting again. The reset signal can be realized by an additional button or an automatic reset circuit 604.

[0032] Reference Figure 3 The support frame 2 has a accommodating cavity 201, the trigger mechanism 6 is installed in the accommodating cavity 201, a notch 202 is opened on the cavity wall of the accommodating cavity 201, and the blocking arm 7 is rotatably installed on the bottom groove surface of the notch 202 through an elastic member, and the elastic member is preferably a torsion spring 203.

[0033] Through the arrangement of the above-mentioned structure, the accommodating cavity 201 arranged in the support frame 2 effectively protects the trigger mechanism 6. The design of the slot 202 makes the operation of the barrier arm 7 easier. The trigger mechanism 6 is used in conjunction with the barrier arm 7 to realize automatic control during the coil winding process and improve production efficiency. The use of the torsion spring 203 ensures the flexible rotation and reliable resetting of the barrier arm 7 and avoids the problem of mechanical jamming.

[0034] Reference Figure 2 In order to reduce the impact damage of the winding unit 4, a buffer pad 701 is installed on the end of the blocking arm 7 located outside the accommodating cavity 201 through an elastic member, and the elastic member is preferably a first spring 702.

[0035] Reference Figure 4 and Figure 5 The winding unit 4 includes: a horizontal rod 401, having a symmetrically arranged slide groove 402; a mold 403, slidably installed in the slide groove 402 on the horizontal rod 401, having winding grooves 404 arranged at equal intervals, and a handle 405 is fixedly installed at one end of the mold 403 away from the horizontal rod 401, which is convenient for operation and replacement; a vertical shaft 406, which is welded and fixed to the horizontal rod 401 and is located at the center of the horizontal rod 401; a pre-tightening member 407, which is fixed on the horizontal rod 401, and the movable end of the pre-tightening member 407 is fixedly connected to the mold 403, and is used to maintain the stability of the mold 403 in the slide groove 402.

[0036] like Figure 5It should be noted that the preload member 407 includes a sleeve 408 fixed on the horizontal rod 401, a movable rod 409 is slidably installed in the sleeve 408, and a second spring 410 is sleeved on the movable rod 409 to achieve free extension and retraction and reset of the movable rod 409 and the mold 403.

[0037] Through the arrangement of the above structure, before winding, the specimen is first placed between the two molds 403 to determine the winding specifications, and then the coil is wound. The coil is first wound around the vertical shaft 406 to be fixed, and then the winding is driven by the motor 3. After winding the specified number of turns, the operator can pinch the two handles 405 to bring the two molds 403 closer to facilitate demolding, thereby improving the convenience and flexibility of operation.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A micro motor coil assembly device, comprising a mobile platform (1), characterized in that: A support frame (2) is fixedly mounted on the mobile platform (1), a motor (3) is fixedly mounted on the support frame (2), a winding unit (4) is mounted on the output end of the motor (3) via a coupling, a digital counter (5) is fixed on the support frame (2), a trigger mechanism (6) and a stop arm (7) are mounted inside the support frame (2), and the stop arm (7) can rotate on the support frame (2) and is used to limit the continued rotation of the winding unit (4) after the coil is wound with an agreed number of turns.

2. The micro motor coil assembly device according to claim 1, characterized in that: The trigger mechanism (6) comprises: An electromagnet (601) is used to attract the barrier arm (7) when powered on; A signal processor (602) is used to perform a logic operation on the output signal of the digital counter (5) to determine whether to trigger the electromagnet (601); The driver (603) is used to conduct the circuit of the electromagnet (601).

3. The micro motor coil assembly device according to claim 2, characterized in that: It also includes a reset circuit (604) which enables the digital counter (5) to restart counting when the digital counter (5) reaches a certain count.

4. A micro motor coil assembly device according to any one of claims 1 to 3, characterized in that: The support frame (2) has a receiving cavity (201), the trigger mechanism (6) is installed in the receiving cavity (201), a notch (202) is provided on the cavity wall of the receiving cavity (201), and the blocking arm (7) is rotatably mounted on the bottom groove surface of the notch (202) via an elastic member.

5. The micro motor coil assembly device according to claim 4, characterized in that: A buffer pad (701) is installed at one end of the barrier arm (7) located outside the accommodating cavity (201) via an elastic member.

6. The micro motor coil assembly device according to claim 1, characterized in that: The winding unit (4) comprises: A horizontal rod (401) having symmetrically arranged slide grooves (402); The mold (403) is slidably mounted in the slide groove (402) on the horizontal rod (401), and has winding grooves (404) arranged at equal intervals. A handle (405) is fixedly mounted on one end of the mold (403) away from the horizontal rod (401); A vertical shaft (406) is welded and fixed to the horizontal rod (401) and is located at the center of the horizontal rod (401); A pre-tightening member (407) is fixed on the horizontal rod (401), and a movable end of the pre-tightening member (407) is fixedly connected to the mold (403).

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