A wire arrangement and arranging fixture for transformer coil

Abstract

The present invention relates to the technical field of coil jigs, and in particular to a wire-straightening jig for transformer coils. The wire-straightening jig for transformer coils includes a fixing assembly and a wire clamp assembly. The fixing assembly includes a connecting shaft, a jig, a locking block, a first spring, a rotating shaft, a torsion spring, a pressure block, and a push block. The jig includes a main body, a first through hole, a second through hole, a step hole, a positioning portion, and a baffle. The positioning portion is arc-shaped, and the locking block includes an insertion portion, a pressing portion, and a locking portion. When the push block moves toward the pressure block, the push block pushes the pressure block to rotate toward the positioning portion, so that the pressure block presses the coil skeleton. The first spring pushes the locking block to move in the direction of the pressing portion, so that the locking portion presses the coil skeleton onto the baffle. The positioning portion and the arc positioning groove at the bottom of the coil skeleton are in shape to fit each other, thereby achieving fixation of the coil skeleton in multiple directions.

Description

Technical Field

[0001] The invention relates to the technical field of coil jigs, and in particular to a wire arrangement and arranging jig for transformer coils. Background Art

[0002] A coil usually refers to a ring-shaped wire winding. The most common coil applications include motors, inductors, transformers, and loop antennas. When winding the wires, the wires are usually wound one by one, and the wires are insulated from each other. The transformer usually includes a skeleton, a coil, and a magnetic core mounted on the skeleton. The coil includes a primary coil and a secondary coil. The two coils are wound on the skeleton in layers and connected to the power supply and the load through pins. Therefore, the transformer coil needs to wind multiple wires onto different pins.

[0003] The transformer coil in the prior art is a plug-in L-shaped pin transformer coil skeleton disclosed in application number CN201821883485.3, which includes a wire package module, a pin and a skeleton base module. The wire package module is embedded in the transformer coil skeleton, and the skeleton base module is located on the lower side of the wire package module. A plurality of pin seats protruding outward are provided on both sides of the skeleton base module, and each pin seat is provided with a row of mounting holes. The pin is in the shape of an inverted "L", and its horizontal end is plugged into the mounting hole of the above-mentioned pin seat, and the vertical end becomes a straight-plug pin. When winding the wire, the starting and tail wires of the coil need to be wound on different pins respectively.

[0004] However, most transformer jigs in the prior art directly clamp the coil frame without fixing and arranging the tail wire, which makes it difficult for the winding mechanism to accurately clamp the tail wire for winding during subsequent winding. Summary of the invention

[0005] In view of this, the present invention provides a wire management fixture for transformer coils to solve the above technical problems.

[0006] A wire arranging and arranging jig for transformer coils, the wire arranging and arranging jig for transformer coils comprising a fixing assembly for fixing a coil frame, and a wire clamp assembly arranged on the fixing assembly, the fixing assembly comprising a connecting shaft, a jig arranged on the connecting shaft, a locking block arranged on the jig, a first spring sleeved on the locking block, a rotating shaft arranged on the jig, a torsion spring arranged on the rotating shaft, a pressing block arranged on the rotating shaft, and a pushing block arranged on the jig. The jig comprises a body, a first through hole arranged on the body, a second through hole arranged on the body, a step hole arranged on the body, a positioning portion arranged on the body, and a baffle arranged on the body. The extension directions of the first through hole and the second through hole are perpendicular to each other, the positioning portion is located on one side of the second through hole, the positioning portion is convex in a direction away from the step hole and is arc-shaped, the shape of the positioning portion matches the shape of the circular arc positioning groove, and the baffle is located on one side of the positioning portion. The locking block includes an insertion portion, a pressing portion arranged at one end of the insertion portion, and a locking portion fixedly arranged at the other end of the insertion portion. The insertion portion is inserted into the step hole, one end of the locking portion is fixedly connected to the insertion portion, and the other end is provided with a protrusion facing the jig. One end of the first spring abuts against the step of the step hole, and the other end abuts against the pressing portion. A groove that fits with the protrusion of the locking portion is provided on the side of the coil skeleton, and the locking portion can press the coil skeleton against the baffle when it is close to the jig. The push block is slidably arranged in the first through hole, and the pressure block is located in the sliding direction of the push block. The push block will push the pressure block to rotate toward the positioning portion and flip the torsion spring at the same time, so that the pressure block presses the coil skeleton onto the positioning portion.

[0007] Furthermore, a protective pad is arranged on the end surface of the pressing block facing the positioning portion, and the protective pad is made of silicone and is provided with a positioning hole matched with the coil skeleton structure.

[0008] Furthermore, a handle is vertically arranged at one end of the push block.

[0009] Furthermore, the wire clamp assembly includes two brackets arranged on both sides of the fixture, and a plurality of wire clamping assemblies arranged on the brackets, and the wire clamping assembly includes a mounting groove arranged on the bracket, two guide shafts arranged in the mounting grooves, a wire clamping block slidably arranged on the guide shaft, and a second spring arranged on the guide shaft.

[0010] Furthermore, both ends of the guide shaft are arranged on the inner wall of the mounting groove, and the central axes of the two guide shafts are parallel to each other.

[0011] Compared with the prior art, the wire-straightening and tidying fixture for transformer coils provided by the present invention is provided by rotating the pressure block on the rotating shaft, and sleeved with a torsion spring on the rotating shaft. In a free state, the pressure block stands upright and does not press the coil skeleton. The pressure block is located in the sliding direction of the push block. When the push block moves toward the pressure block, the push block will push the pressure block to rotate toward the positioning portion, so that the pressure block presses the coil skeleton to achieve the fixation of the coil skeleton along the axial direction of the second through hole. The first spring will push the locking block to move in the direction of the pressing portion through its own elastic force, so that the locking portion presses the coil skeleton onto the baffle to achieve the fixation of the coil skeleton along the axial direction of the step hole. The positioning portion and the arc positioning groove at the bottom of the coil skeleton are in shape, so that the coil can be stably set on the positioning portion, and the movement of the coil skeleton along the axial direction of the connecting shaft can be achieved. The bracket is arranged around the fixing component to arrange the wire clamping components at different positions, and each of the wire clamping components clamps a wire, so that multiple wires on the coil frame are spread out and fixed, and the wires are arranged and straightened, which is convenient for the subsequent winding device to clamp and wind a single wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic structural diagram of a transformer coil wire management fixture provided by the present invention.

[0013] Figure 2 for Figure 1 A schematic diagram of the structure of the fixture of the transformer coil wire management fixture.

[0014] Figure 3 for Figure 1 A cross-sectional view of the wire management fixture for the transformer coil.

[0015] Figure 4 for Figure 1 A schematic structural diagram of the wire clamp assembly of the wire management fixture for the transformer coil.

[0016] Figure 5 for Figure 1 A schematic diagram of the structure of the wire management fixture of the transformer coil when it is unlocked.

[0017] Explanation of the reference numerals: fixing assembly 10, wire clamp assembly 20, connecting shaft 11, jig 12, locking block 13, first spring 14, rotating shaft 15, torsion spring 16, pressure block 17, push block 18, main body 121, first through hole 122, second through hole 123, step hole 124, positioning portion 125, baffle 126, insertion portion 131, pressing portion 132, locking portion 133, bracket 21, wire clamp assembly 22, mounting groove 221, guide shaft 222, wire clamp block 223, second spring 224. DETAILED DESCRIPTION

[0018] The specific embodiments of the present invention are further described in detail below. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0019] like Figures 1 to 5 As shown, it is a schematic diagram of the structure of the wire-straightening fixture for transformer coils provided by the present invention. The wire-straightening fixture for transformer coils includes a fixing component 10 for fixing a coil frame, and a wire clamp component 20 arranged on the fixing component 10. It can be imagined that the wire-straightening fixture for transformer coils also includes other functional modules, such as connection components, sensors, and installation components, etc., which are well known technologies to those skilled in the art and will not be repeated here.

[0020] First of all, it should be explained that the coil skeleton is used to wind the coil and play a supporting role. The coil skeleton includes a coil skeleton body, a plurality of pins arranged on the coil skeleton body and used to wind the starting wire and the tail wire, and an arc positioning groove arranged at the bottom of the coil skeleton body. The coil skeleton needs to be fixed and rotated under the action of an external rotating device, so that the wire is wound on the pins of the coil skeleton. The pins are used to control the starting wire and the tail wire to be wound on the pins respectively through an external moving device after the coil winding is completed. In order to avoid the wires and the tail wire being placed in a mess and difficult to clamp, they are fixed and arranged by the wire clamp assembly 20, and the specific description will be described below in conjunction with the wire clamp assembly 20. The arc positioning groove is used to cooperate with the fixing assembly 10 to fix the coil skeleton, and the specific description will be described below in conjunction with the fixing assembly 10.

[0021] The fixing assembly 10 includes a connecting shaft 11, a jig 12 arranged on the connecting shaft 11, a locking block 13 arranged on the jig 12, a first spring 14 sleeved on the locking block 13, a rotating shaft 15 arranged on the jig 12, a torsion spring 16 arranged on the rotating shaft 15, a pressing block 17 arranged on the rotating shaft 15, and a pushing block 18 arranged on the jig 12.

[0022] One end of the connecting shaft 11 is connected to an external moving device, so that the wire arranging and arranging fixture is moved to different stations for winding under the control of the external moving device. The other end of the connecting shaft 11 is fixedly connected to the fixture 12.

[0023] like Figure 2 As shown, the fixture 12 includes a main body 121, a first through hole 122 arranged on the main body 121, a second through hole 123 arranged on the main body 121, a step hole 124 arranged on the main body 121, a positioning portion 125 arranged on the main body 121, and a baffle 126 arranged on the main body 121.

[0024] The first through hole 122 and the second through hole 123 are rectangular, and the extension directions of the first through hole 122 and the second through hole 123 are perpendicular to each other. The first through hole 122 is used to set the push block 18. The second through hole 12 is used to set the pressure block 17. The step hole 124 is a through hole with two different diameters. The step is used to set the first spring 14 to resist the locking block 13. The specific description will be described below in conjunction with the locking block 13. The positioning portion 125 is located on one side of the second through hole 123. The positioning portion 125 is protruding in the direction away from the step hole 124 and is arc-shaped. The positioning portion 125 fits with the arc positioning groove at the bottom of the coil skeleton, so that the coil skeleton is positioned in the radial direction along the step hole 124. At the same time, after the pressure block 17 presses the coil skeleton, the positioning portion 125 can limit the movement in the axial direction perpendicular to the connecting shaft 11. The baffle 126 is located at one side of the positioning portion 125, and is used to cooperate with the locking block 13 to clamp the coil skeleton to achieve axial fixation of the coil skeleton along the step hole 124, thereby achieving three-dimensional positioning of the coil skeleton. The specific description will be described below in conjunction with the locking block 13.

[0025] Please also read Figure 3, the locking block 13 includes an insertion portion 131, a pressing portion 132 arranged at one end of the insertion portion 131, and a locking portion 133 fixedly arranged at the other end of the insertion portion 131. The insertion portion 131 is inserted into the step hole 124, the diameter of the pressing portion 132 is larger than the diameter of the insertion portion 131, one end of the locking portion 133 is fixedly connected to the insertion portion 131, and the other end is provided with a protrusion facing the fixture 12. The method of fixing the locking portion 133 to the insertion portion 131 can be screwing. One end of the first spring 14 abuts against the step of the step hole 124, and the other end abuts against the pressing portion 132. The first spring 14 will push the locking block 13 to move in the direction of the pressing portion 132 through its own elastic force, so that the locking portion 133 can be close to the fixture 12. The side of the coil skeleton is provided with a groove that matches the protrusion of the locking portion 133 , and when the locking portion 133 is close to the fixture 12 , the coil skeleton can be pressed against the baffle 126 to achieve the fixation of the coil skeleton along the axial direction of the step hole 124 .

[0026] like Figure 5 As shown, the rotating shaft 15 is arranged in the second through hole 123, and is used to support the rotation of the pressing block 17. The torsion spring 16 and the pressing block 17 are sleeved on the rotating shaft 15, and one end of the torsion spring 16 abuts against the pressing block 17, and the other end abuts against the inner wall of the second through hole 123. The pressing block 17 is pushed to rotate by the elastic force of the torsion spring 16 itself, so that the pressing block 17 rotates toward the push block 18 in a free state, so that the pressing block 17 stands upright in a free state and does not press the coil skeleton. In order to avoid crushing the coil skeleton, a protective pad 19 is arranged on the end face of the pressing block 17 facing the positioning portion 125. The protective pad 19 is made of silicone and is provided with a positioning hole that matches the coil skeleton structure, so that the coil skeleton can be pressed more accurately and prevented from being damaged.

[0027] The push block 18 is slidably disposed in the first through hole 122, and the pressing block 17 is located in the sliding direction of the push block 18. When the push block 18 moves toward the pressing block 17, the push block 18 will push the pressing block 17 to rotate toward the positioning portion 125 and flip the torsion spring 16, so that the pressing block 17 presses the coil skeleton on the positioning portion 125 to achieve the fixation of the coil skeleton along the axial direction of the second through hole 123. At this time, the push block 18 presses most of the pressing block 17, preferably at least presses one end of the pressing block 17 that is rotatably connected to the rotating shaft 15, so that the pressing block 17 will not flip under the action of the torsion spring 16. When the push block 18 is reset, the push block 18 no longer presses the pressing block 17, and at this time, the torsion spring 16 releases elastic potential energy to push the pressing block 17 to rotate and make it stand up, and no longer press the coil skeleton. In order to facilitate the pushing of the push block 18, a handle is vertically arranged at one end of the push block 18 to facilitate people to grab it.

[0028] like Figure 4 As shown, the wire clamp assembly 20 includes two brackets 21 arranged on both sides of the fixture 12 , and a plurality of wire clamping assemblies 22 arranged on the brackets 21 .

[0029] Since the number and position of the wires extending from both sides of the coil skeleton are different, the position of the pins is also different. Therefore, in this embodiment, one of the brackets 21 is an arc-shaped structure, and the other bracket 21 is a straight structure, so that the bracket 21 is arranged around the fixed component 10 to set the clamping components 22 in different positions. The clamping components 22 are arranged at intervals along the bracket 21, and each clamping component 22 clamps a wire, so that the multiple wires on the coil skeleton are arranged and fixed in a scattered manner, so as to achieve the arrangement and straightening of the wires. At the same time, the bracket 21 and the fixed component 10 also have a larger space, which is convenient for the winding device to wind the coil skeleton.

[0030] The wire clamping assembly 22 includes a mounting groove 221 disposed on the bracket 21 , two guide shafts 222 disposed in the mounting groove 221 , a wire clamping block 223 slidably disposed on the guide shaft 222 , and a second spring 224 disposed on the guide shaft 222 .

[0031] The two ends of the guide shaft 222 are arranged on the inner wall of the mounting groove 221, and the central axes of the two guide shafts 222 are parallel to each other, so that the clamping block 223 can only move axially along the guide shaft 222 without shaking. The end of the clamping block 223 and the mounting groove 221 facing each other is provided with a chamfer to facilitate the wire to enter between the clamping block 223 and the mounting groove 221. One end of the second spring 224 abuts against the mounting groove 221, and the other end abuts against the clamping block 223. The clamping block 223 is pushed toward the inner wall of the mounting groove 221 by the elastic force of the second spring 224 itself, thereby clamping the wire that slides into between the clamping block 223 and the mounting groove 221. After the coil skeleton is wound, the starting wire and the tail wire are clamped manually or with a mobile clamp, and the starting wire and the tail wire are slid from the clamp block 223 and the end of the mounting groove 221 with chamfers, into between the clamp block 223 and the mounting groove 221, and the second spring 224 pushes the clamp block 223 toward the inner wall of the mounting groove 221 by its own elastic force, thereby clamping the wires so that the starting wire and the tail wire are fixed. Compared with the prior art, the wire arranging and arranging jig for transformer coils provided by the present invention is provided by rotating the pressing block 17 on the rotating shaft 15, and a torsion spring 16 is sleeved on the rotating shaft 15. In the free state, the pressing block 17 is erected and does not press the coil skeleton. The pressing block 17 is located in the sliding direction of the pushing block 18. When the pushing block 18 moves toward the pressing block 17, the pushing block 18 will push the pressing block 17 to rotate toward the positioning portion 125, so that the pressing block 17 presses the coil skeleton to achieve the fixation of the coil skeleton along the axial direction of the second through hole 123. The first spring 14 pushes the locking block 13 to move toward the pressing portion 132 through its own elastic force, so that the locking portion 133 presses the coil skeleton against the baffle 126 to achieve the fixation of the coil skeleton along the axial direction of the step hole 124. The positioning portion 125 fits with the arc positioning groove shape at the bottom of the coil skeleton, so that the coil can be stably set on the positioning portion 125, and the coil skeleton can be moved axially along the connecting shaft 11. The bracket 21 is arranged around the fixing component 10 to set the wire clamping components 22 at different positions, and each of the wire clamping components 22 clamps a wire, so that the multiple wires on the coil frame are spread out and fixed, and the wires are arranged and straightened, which is convenient for the subsequent winding device to clamp and wind the single wire.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention is included in the scope of the claims of the present invention.

Claims

1. A wire arranging and arranging jig for transformer coils, wherein the coil frame comprises a coil frame body, a plurality of pins arranged on the coil frame body and used for winding starting wires and tail wires, and an arc positioning groove arranged at the bottom of the coil frame body, characterized in that: The wire arranging and arranging jig of the transformer coil comprises a fixing component for fixing a coil skeleton, and a wire clamp component arranged on the fixing component, the fixing component comprises a connecting shaft, a jig arranged on the connecting shaft, a locking block arranged on the jig, a first spring sleeved on the locking block, a rotating shaft arranged on the jig, a torsion spring arranged on the rotating shaft, a pressing block arranged on the rotating shaft, and a pushing block arranged on the jig, the jig comprises a main body, a first through hole arranged on the main body, a second through hole arranged on the main body, a step hole arranged on the main body, a positioning portion arranged on the main body, and a baffle arranged on the main body, the extension directions of the first through hole and the second through hole are perpendicular to each other, the positioning portion is located on one side of the second through hole, the positioning portion protrudes in a direction away from the step hole and is arc-shaped, the shape of the positioning portion matches the shape of the circular arc positioning groove, the baffle is located on one side of the positioning portion, the locking block comprises an insertion portion, a A pressing portion is arranged at one end of the insertion portion, and a locking portion is fixedly arranged at the other end of the insertion portion, the insertion portion is inserted in the step hole, one end of the locking portion is fixedly connected to the insertion portion, and the other end is provided with a protrusion facing the fixture, one end of the first spring abuts against the step of the step hole, and the other end abuts against the pressing portion, a side surface of the coil skeleton is provided with a groove that fits with the protrusion of the locking portion, and the locking portion can press the coil skeleton on the baffle when it is close to the fixture, the push block is slidably arranged in the first through hole, the pressure block is located in the sliding direction of the push block, the push block will push the pressure block to rotate toward the positioning portion and flip the torsion spring at the same time, so that the pressure block presses the coil skeleton on the positioning portion, the wire clamp assembly includes two brackets arranged on both sides of the fixture, and a plurality of wire clamping assemblies arranged on the brackets, the wire clamping assembly includes a mounting groove arranged on the bracket, two guide shafts arranged in the mounting groove, a wire clamping block slidably arranged on the guide shaft, and a second spring arranged on the guide shaft.

2. The wire arrangement and aligning fixture for transformer coils according to claim 1, characterized in that: A protection pad is arranged on the end surface of the pressing block facing the positioning portion. The protection pad is made of silica gel and is provided with a positioning hole matched with the coil skeleton structure.

3. The wire arrangement and arranging fixture for transformer coils according to claim 1, characterized in that: A handle is vertically arranged at one end of the push block.

4. The wire arrangement and aligning fixture for transformer coils according to claim 1, characterized in that: Both ends of the guide shaft are arranged on the inner wall of the mounting groove, and the central axes of the two guide shafts are parallel to each other.

5. The wire arrangement and aligning fixture for transformer coils according to claim 1, characterized in that: One end of the wire clamping block facing the mounting groove is provided with a chamfer.

6. The wire arrangement and aligning fixture for transformer coils according to claim 1, characterized in that: One end of the second spring abuts against the installation slot, and the other end abuts against the wire clamping block, and the wire clamping block is pushed toward the inner side wall of the installation slot by the elastic force of the second spring itself.

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