A concentric sine wave winding device for a rotary transformer

Abstract

The application provides a rotating transformer concentric sine winding device for winding enameled wire on a rotating transformer stator assembly, and belongs to the technical field of rotating transformers, and comprises a winding assembly for driving the enameled wire to move in three dimensions in space, a rotating assembly for driving the rotating transformer stator assembly to rotate and cooperate with the winding assembly to wind, and a control assembly for controlling the winding assembly and the rotating assembly to work, wherein the rotating assembly is provided with a plurality of wire blocking columns for avoiding the enameled wire from falling off when the control assembly adjusts the rotation angle of the rotating transformer stator assembly. The winding device can automatically wind rotating transformer stators of different sizes according to the required number of turns, improves production efficiency, and ensures that the winding states of rotating transformer stators in the same batch are consistent.

Description

Technical Field

[0001] This invention belongs to the field of rotary transformer technology, and specifically relates to a concentric sinusoidal winding device for rotary transformers. Background Technology

[0002] Rotary transformers have extremely wide applications in modern industry, such as measuring speed and angle, and have a broad market prospect. Rotary transformers utilize the principle of electromagnetic induction, converting mechanical angular displacement into an electrical signal that has a specific functional relationship (sine, cosine, or linear relationship) with the rotation angle through changes in mutual inductance between the stator and rotor. They are widely used in servo systems, coordinate transformation, and high-precision measurement fields.

[0003] Existing rotary transformers cannot be automatically wound, resulting in low production efficiency. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art and provide an automatic winding device for concentric sinusoidal windings of rotary transformers that can automatically wind stators of rotary transformers of different sizes according to the required number of turns.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concentric sinusoidal winding device for a rotary transformer, used to wind enameled wire onto the stator assembly of a rotary transformer, comprising: The winding assembly is used to drive the enameled wire to move in three dimensions in space; The rotating assembly is used to drive the stator assembly of the rotary transformer to rotate in conjunction with the winding assembly for winding. A control component is used to control the operation of the winding assembly and the rotating assembly. The rotating assembly is provided with multiple wire-blocking posts to prevent the enameled wire from falling off when the control assembly adjusts the rotation angle of the stator assembly of the rotary transformer.

[0006] The concentric sinusoidal winding device for a rotary transformer provided by the present invention also has the following technical features: the winding assembly includes a first connecting rod connected to the control assembly, a second connecting rod detachably connected to the first connecting rod, a central shaft pressed against the other end of the second connecting rod by a pressure plate, a wire guide connected to one end of the central shaft, a pulley connected to the other end of the central shaft, a wire stopper, and a winding nozzle.

[0007] The concentric sinusoidal winding device for rotary transformers provided by the present invention also has the following technical feature: the wire stopper is provided with a wire stop groove, which is used to ensure that the enameled wire is wound on the wire stop post.

[0008] The concentric sinusoidal winding device for rotary transformers provided by the present invention also has the following technical feature: the center of the lower end face of the central shaft of the winding nozzle is coaxial with the central shaft of the output shaft of the control assembly used to control the movement of the first connecting rod.

[0009] The concentric sinusoidal winding device for a rotary transformer provided by this invention also has the following technical features: the rotating assembly further includes a support base, a base detachably mounted on the support base for fixing the stator assembly of the rotary transformer, and a hanging post disposed on the base. The wire-blocking post is fixed to the base.

[0010] The rotary transformer concentric sinusoidal winding device provided by the present invention also has the following technical features: the control component includes a first control component for driving the winding component to work and a second control component for driving the rotating component to work.

[0011] The rotary transformer concentric sinusoidal winding device provided by the present invention also has the following technical features: the first control component is a stepper motor or a cylinder, and the second control component is a stepper motor.

[0012] Beneficial effects: Compared with the prior art, the concentric sinusoidal winding device for rotary transformers provided by the present invention can automatically wind stators of rotary transformers of different sizes according to the required number of turns, thereby improving production efficiency and ensuring that the winding state of rotary transformer stators in the same batch is consistent. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the winding device provided in the embodiment of the present invention being rotated 0 degrees; Figure 2 This is a schematic diagram of the winding device provided in an embodiment of the present invention being rotated 90 degrees; Figure 3 This is a front view of the winding device provided in an embodiment of the present invention; Figure 4 This is a top view of the winding device provided in an embodiment of the present invention; Figure 5 This is a left cross-sectional view of the winding device provided in an embodiment of the present invention; Figure 6This is a schematic diagram of the winding device provided in the embodiment of the present invention; Figure 7 This is a schematic diagram of the wire stopper provided in an embodiment of the present invention; Figure 8 This is a schematic diagram showing the relative positional relationship between the output shaft center axis and the center of the lower end face of the winding nozzle in an embodiment of the present invention. Wherein, 1: First connecting rod; 2: Second connecting rod; 3: Wire guide; 4: Pressure plate; 5: Central shaft; 6: Support base; 7: Base; 8: Winding nozzle; 9: Wire stopper; 10: Cylindrical pin; 11: Pulley; 12: Wire stop post; 13: Wire hanging post; 14: Socket head cap screw; 15: Slotted flat end set screw; 16: Cylindrical head screw. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent changes or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0016] In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and 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. Therefore, they should not be construed as limiting the invention.

[0017] Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0018] The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art will understand the specific meaning of these terms in this invention based on the specific circumstances.

[0019] like Figure 1-8As shown, this embodiment of the invention provides a concentric sinusoidal winding device for a rotary transformer, used to wind enameled wire onto the stator assembly of the rotary transformer, comprising: The winding assembly is used to drive the enameled wire to move in three dimensions in space; The rotating assembly is used to drive the stator assembly of the rotary transformer to rotate in conjunction with the winding assembly for winding. A control component is used to control the operation of the winding assembly and the rotating assembly. The rotating assembly is provided with multiple wire-blocking posts 12 to prevent the enameled wire from falling off when the control assembly adjusts the rotation angle of the stator assembly of the rotary transformer.

[0020] In some embodiments, the winding assembly includes a first connecting rod 1 connected to the control assembly, a second connecting rod 2 detachably connected to the first connecting rod 1, a central shaft 5 pressed against the other end of the second connecting rod 2 by a pressure plate 4, a wire guide 3 connected to one end of the central shaft 5, a pulley 11 connected to the other end of the central shaft 5, a wire stopper 9, and a winding nozzle 8. The pulley 11 is fixed to the other end of the central shaft 5 by a cylindrical pin 10 to calibrate the direction of the enameled wire during winding.

[0021] In some embodiments, the first connecting rod 1 is connected to the X-axis, Y-axis, and Z-axis motors, respectively driving the corresponding motors to realize the movement of the winding nozzle in three-dimensional space; the first connecting rod 1 and the second connecting rod 2 are connected by hexagon socket head cap screws 14; the central shaft 5 is fixed to the second connecting rod 2 by the pressure plate 4 and the hexagon socket head cap screws 14; the wire guide 3 is fixed to the end of the central shaft 5 by the hexagon socket head cap screws 14 to prevent the enameled wire from being cut by the second connecting rod 2 during the winding process; the winding 8 is fixed to the central shaft 5 by slotted flat-end set screws 15; the wire stopper 9 is fixed to the central shaft 5 by the head screws 16 to calibrate the direction of the enameled wire during the winding process.

[0022] In some embodiments, the wire stopper is provided with a wire stop groove, which is used to ensure that the enameled wire is wound on the wire stop post 12.

[0023] In some embodiments, such as Figure 8 As shown, the center of the lower end face of the central shaft of the winding nozzle 8 is coaxial with the central shaft of the output shaft of the control assembly used to control the movement of the first connecting rod 1.

[0024] In some embodiments, the rotating assembly further includes a support base 6, a base 7 detachably mounted on the support base 6 for fixing the stator assembly of the rotary transformer, and a wire-hanging post 13 disposed on the base 7, wherein the wire-blocking post 12 is fixed on the base.

[0025] In some embodiments, the base 7 is fixed to the support 6 by hexagon socket head cap screws 14. The base 7 has positioning holes, which correspond to the positioning shaft on the stator placement fixture. After placement, it is fixed with slotted flat-end set screws 15. The support 6 is connected to an S-axis motor, which controls its 0-360° rotation. The support 6 has multiple threaded holes to accommodate different sizes of resolver stators for winding.

[0026] In some embodiments, the control component includes a first control element for driving the winding assembly and a second control element for driving the rotating assembly.

[0027] In some embodiments, the first control component is a stepper motor or a cylinder, and the second control component is a stepper motor.

[0028] The working principle of the device provided in any of the foregoing embodiments is as follows: The winding device connects to a flipping motor and X, Y, and Z axis motors, enabling the winding section to flip from 0 to 90 degrees and move in three-dimensional space. The support section connects to a rotary motor, enabling the resolver stator to rotate at any angle from 0 to 360 degrees. Automatic winding of the concentric sinusoidal winding of the resolver is achieved through flipping motion, X, Y, and Z axis translational motion, and S-axis rotational motion. First, the resolver stator-specific fixture is placed on the base 7 and secured with slotted flat-end set screws 15. Then, the enameled wire is manually threaded into the winding nozzle 8. After the wire end is secured, it is wound onto the hanging post 13. The number of turns can be freely set. The X, Y, and Z axis motors and the rotary motor move the winding nozzle 8 to the center of the slot above the starting slot. The flip motor rotates the winding device from 0 degrees to 90 degrees. The X, Y, and Z axis motors then move the winding nozzle 8 below the starting slot, ensuring the enameled wire falls accurately into the starting slot. The rotary motor rotates the device to the required angle, and then the corresponding motor moves the winding nozzle 8 above the ending slot, ensuring the enameled wire falls accurately into the ending slot. The flip motor rotates the winding device from 90 degrees to 0 degrees, and the rotary motor moves the winding nozzle 8 back to the starting slot. This process is repeated.

[0029] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A concentric sinusoidal winding device for a rotary transformer, used to wind enameled wire onto the stator assembly of a rotary transformer, characterized in that, include: The winding assembly is used to drive the enameled wire to move in three dimensions in space; The rotating assembly is used to drive the stator assembly of the rotary transformer to rotate in conjunction with the winding assembly for winding. A control component is used to control the operation of the winding assembly and the rotating assembly. The rotating assembly is equipped with multiple wire-blocking posts to prevent the enameled wire from falling off when the control assembly adjusts the rotation angle of the rotary transformer stator assembly. The winding assembly includes a first link connected to the control assembly, a second link detachably connected to the first link, a central shaft pressed against the other end of the second link by a pressure plate, a wire guide connected to one end of the central shaft, a pulley connected to the other end of the central shaft, a wire stopper, and a winding nozzle. The wire stopper is provided with a wire-stopping groove, which is used to ensure that the enameled wire is wound around the wire-stopping post. The center of the lower end face of the central shaft of the winding nozzle is coaxial with the central shaft of the output shaft in the control assembly used to control the movement of the first connecting rod. The rotating assembly also includes a support base, a base detachably mounted on the support base for fixing the stator assembly of the rotary transformer, and a hanging post disposed on the base. The wire-blocking post is fixed to the base. The control component includes a first control element for driving the winding assembly to work and a second control element for driving the rotating assembly to work.

2. The concentric sinusoidal winding device for a rotary transformer according to claim 1, characterized in that, The first control component is a stepper motor or a cylinder, and the second control component is a stepper motor.

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