Layer expanding method and layer expanding device for flat wire of stator

Abstract

Disclosed in the present invention are a layer expanding method and a layer expanding device for a flat wire of a stator. A flat wire is pulled outwardly in the direction of the extension line of the radius of a stator by means of a flat-wire push-pull device, such that the flat wire is deviated outwardly by a certain distance. After the flat wire is deviated, a bending and forming device is placed against the inner side of the flat wire, and the flat wire push-pull device then pushes the flat wire to move inwardly. Due to the obstruction of the bending and forming device, when the flat wire moves, the part of the flat wire that is close to the stator cannot move, but only the lower end of the flat wire can move, such that a bulge structure facing the outer side is formed on the flat wire. The protruding sizes of bulge structures on adjacent flat wires are different, and by means of the structure, when the flat wires are crossed, the roots of the adjacent flat wires can also be staggered, and thus interference cannot be generated.

Description

A stator flat wire layer expansion method and layer expansion device Technical Field

[0001] The present invention relates to the technical field of stator production, and in particular to a layer expansion method and a layer expansion device for a stator flat wire. Background Art

[0002] A stator in the prior art is shown in FIG1 , in which flat wires are wound on the stator body, and the connecting segments of the flat wires extend downward from the stator body. Since the stator body is often circular, a number of flat wires extend from the lower end of the stator body at different radii, that is, a number of layers of flat wires surround the lower end of the stator body from the inside to the outside, and a number of flat wires arranged at the same radius form a layer. In addition, the flat wires of the same layer need to cross each other, but since the flat wires of the same layer are at the same distance from the center of the stator body, the flat wires need to be expanded before crossing, and the flat wires of the same layer are pulled outward by different distances, so that the flat wires of the same layer are located at different radial positions of the stator body, and can cross after being staggered. However, when the layers are expanded in this way, when the flat wires cross, there is still an interference problem at the root position of the flat wire. The root of the flat wire refers to the part of the connecting segment of the flat wire that is connected to the stator body.

[0003] Summary of the Invention

[0004] In order to solve the above-mentioned deficiencies in the prior art, the present invention proposes a stator flat wire expansion method and expansion device, which forms a bulge at the root of the flat wire so that when the flat wires cross, the root positions of the flat wires can also be staggered to avoid interference problems.

[0005] In order to achieve the above technical effects, the present invention adopts the following scheme:

[0006] A method for expanding layers of stator flat wires comprises the following steps:

[0007] S1. Place the stator so that the exposed flat wire ends on the stator face downwards;

[0008] S2. Pull the end of the flat wire on the stator that needs to be expanded toward the outside of the stator, so that the flat wire tilts outward;

[0009] S3, restrict the part of the flat wire close to the stator so that it cannot move inward;

[0010] S4. Push the flat wire inward so that the portion of the flat wire close to the stator bulges outward to form a bulge, while the end of the flat wire remains vertical.

[0011] A stator flat wire expansion device includes a stator rotating device, a flat wire pushing and pulling device, and a bending and forming device. The stator rotating device is used to drive the stator to rotate, the flat wire pushing and pulling device is used to pull the flat wire outward and push the flat wire inward, and the bending and forming device is used to limit the part of the flat wire close to the stator from moving inward after the flat wire pushing and pulling device pulls the flat wire outward, and cooperates with the flat wire pushing and pulling device to push the flat wire inward to form a bulge on the flat wire.

[0012] A preferred technical solution is that the stator rotating device includes a frame I, a stator fixing seat for placing the stator, and a rotation drive mechanism for driving the stator fixing seat to rotate. The lower end of the stator fixing seat is rotatably mounted on the upper end of the frame I through a rotating shaft I. The rotation drive mechanism includes a rotating motor I, which is mounted on the frame I and drives the rotating shaft I to rotate.

[0013] A preferred technical solution is that the flat wire push-pull device is arranged on one side of the stator rotating device, and the flat wire push-pull device includes a frame II, a vertically arranged sleeve, a horizontal moving mechanism I and a lifting mechanism. The upper end of the sleeve extends downward and is provided with a socket. The sleeve is driven by the horizontal moving mechanism I to move along the radial extension direction of the stator. The horizontal moving mechanism I is driven to rise and fall by the lifting mechanism, and the lifting mechanism is installed on the frame II.

[0014] According to a preferred technical solution, the horizontal moving mechanism I includes a connecting rod I, one end of which is connected to the lower end of the sleeve, and the other end of which is connected to a propulsion cylinder I, which is installed on the lifting mechanism.

[0015] According to a preferred technical solution, the lifting mechanism includes a lifting plate and a lifting cylinder. The lifting cylinder is vertically arranged, the upper end of the telescopic rod of the lifting cylinder is fixedly connected to the lifting plate, and the horizontal moving mechanism I is installed on the lifting plate.

[0016] A preferred technical solution is that the bending and forming device is arranged on one side of the stator rotating device, and the bending and forming device includes a frame III, a baffle, a base, a horizontal moving mechanism II and a horizontal moving mechanism III. The baffle is installed on the frame III for movement through the horizontal moving mechanism II, and the moving direction of the baffle is consistent with the tangential direction of the stator. The baffle is horizontally arranged, and the length direction of the baffle is consistent with the moving direction of the baffle. The frame III is installed on the base for movement through the horizontal moving mechanism III, and the moving direction of the frame III is perpendicular to the moving direction of the baffle.

[0017] The preferred technical solution is that the horizontal moving mechanism II includes a horizontal slide rail I installed on the top of the frame III, the length direction of the horizontal slide rail I is consistent with the moving direction of the baffle bar, a slider is slidingly provided on the horizontal slide rail I, and the slider is fixedly connected to the baffle bar through a connecting rod, and one side of the horizontal slide rail I is provided with a propulsion cylinder II fixedly installed on the frame III, and the telescopic rod of the propulsion cylinder II is connected to the slider to push the slider to move.

[0018] The preferred technical solution is that the horizontal moving mechanism III includes a horizontal slide rail II installed on the base, the length direction of the horizontal slide rail II is perpendicular to the moving direction of the barrier rod, the lower end of the frame III is matched and installed on the horizontal slide rail II for movement, and a propulsion cylinder III is also installed on the base, and the telescopic rod of the propulsion cylinder III is connected to the frame III to push the frame III to move.

[0019] Compared with the prior art, the beneficial effects are:

[0020] The present invention has a simple structure and is easy to use. It expands the layers through the joint action of a stator rotating device, a flat wire pushing and pulling device, and a bending and forming device, and forms a bulge at the root position of the flat wire, so that the root positions of adjacent flat wires can also be staggered. When crossing, no interference will occur between the root positions of the flat wires. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of a flat wire crossing of a stator in the prior art;

[0022] Figure 2 is an enlarged schematic diagram of part A in Figure 1;

[0023] FIG3 is a schematic structural diagram of the present invention;

[0024] FIG4 is an enlarged schematic diagram of the structure of part B in FIG3 ;

[0025] FIG5 is a schematic structural diagram of a stator rotating device in the present invention;

[0026] FIG6 is a schematic structural diagram of a flat wire push-pull device according to the present invention;

[0027] FIG7 is a schematic diagram of a stator after wire expansion using the present invention;

[0028] FIG8 is an enlarged schematic diagram of portion C in FIG7 .

[0029] Figure numerals: 1. stator; 1a. stator body; 1b. flat wire; 1c. root; 2. flat wire push-pull device; 3. bending and forming device; 4. frame II; 5. sleeve; 6. base; 7. horizontal slide rail II; 8. frame III; 9. thrust cylinder III; 10. horizontal slide rail I; 11. slider; 12. thrust cylinder II; 13. stop rod; 14. frame I; 15. stator fixing seat; 16. rotating shaft I; 17. rotating motor I; 18. thrust cylinder I; 19. lifting plate; 20. lifting cylinder. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments.

[0031] A method for expanding layers of stator flat wires comprises the following steps:

[0032] S1. Place the stator 1 so that the exposed end of the flat wire 1b on the stator 1 faces downward;

[0033] S2. Pull the end of the flat wire 1b on the stator 1 that needs to be expanded toward the outside of the stator 1 so that the flat wire 1b tilts outward;

[0034] S3, restricting the portion of the flat wire 1b close to the stator 1 so that it cannot move inward;

[0035] S4. Push the flat wire 1b inward, so that the portion of the flat wire 1b close to the stator 1 bulges outward, while the end of the flat wire 1b remains vertical.

[0036] A stator flat wire expansion device includes a stator 1 rotating device, a flat wire push-pull device 2, and a bending and forming device 3. The stator 1 rotating device is used to drive the stator 1 to rotate, the flat wire push-pull device 2 is used to pull the flat wire 1b outward and push the flat wire 1b inward, and the bending and forming device 3 is used to limit the part of the flat wire 1b close to the stator 1 from moving inward after the flat wire push-pull device 2 pulls the flat wire 1b outward, and cooperate with the flat wire push-pull device 2 to push the flat wire 1b inward to form a bulge on the flat wire 1b.

[0037] The stator 1 is placed on the stator 1 rotating device with the flat wire 1b facing downward, which can fix the stator 1 and drive the stator 1 to rotate. Then, a flat wire 1b is pulled outward along the extension line of the radius of the stator 1 by the flat wire pushing and pulling device 2, so that the flat wire 1b deviates outward by a certain distance. The specific deviation distance is set according to actual needs. After the flat wire 1b deviates, it is pressed against the inner side of the flat wire 1b by the bending forming device 3, and then the flat wire pushing and pulling device 2 pushes the flat wire 1b inward. The bending forming device 3 is blocked, and when the flat wire 1b moves, the part of the flat wire 1b close to the stator 1 cannot move, and only the lower end of the flat wire 1b can move, thereby forming a bulge structure facing outward on the flat wire 1b. The protruding sizes of the bulge structures on adjacent flat wires 1b are different. Through this structure, when the flat wires 1b cross, the roots 1c of adjacent flat wires 1b can also be staggered without interference. After one flat wire 1b is expanded, the rotating device of the stator 1 rotates to rotate the next flat wire 1b to the expanded position.

[0038] The preferred technical solution is that the stator 1 rotating device includes a frame I14, a stator fixing seat 15 for placing the stator 1, and a rotating drive mechanism for driving the stator fixing seat 15 to rotate. The stator 1 is fixedly placed on the fixing seat and the flat wire 1b is exposed. Any means that can achieve the corresponding effect in the existing technology can be used. The lower end of the stator fixing seat 15 is rotatably mounted on the upper end of the frame I14 through a rotating shaft I16. The rotating drive mechanism includes a rotating motor I17. The rotating motor I17 is mounted on the frame I14. The rotating motor I17 drives the rotating shaft I16 to rotate. After the stator 1 is placed on the stator fixing seat 15, the stator fixing seat 15 is driven to rotate by the rotating motor I17.

[0039] The preferred technical solution is that the flat wire push-pull device 2 is provided on one side of the stator 1 rotating device, and the flat wire push-pull device 2 includes a frame II 4, a vertically arranged sleeve 5, a horizontal moving mechanism I and a lifting mechanism. The upper end of the sleeve 5 extends downward and is provided with a socket for sleeved on the flat wire 1b. The sleeve 5 is driven by the horizontal moving mechanism I to move along the radial extension direction of the stator 1, that is, to move perpendicular to the tangent direction of the stator 1. The horizontal moving mechanism I is driven to move up and down by the lifting mechanism, and the lifting mechanism is installed on the frame II 4. The driving mechanism I drives the sleeve 5 to move to the bottom of the flat wire 1b, and then the lifting structure drives the sleeve 5 to rise and fall, so that the sleeve 5 is sleeved on the flat wire 1b, and then the horizontal moving mechanism I drives the sleeve 5 to move outward, pulling the flat wire 1b outward to deviate, and after the bending forming strong man fixes the root 1c of the flat wire 1b, the horizontal moving mechanism I drives the sleeve 5 to move inward, pushing the flat wire 1b toward the stator 1. After completion, the lifting mechanism drives the sleeve 5 to descend, remove it from the flat wire 1b, and is reset by the horizontal moving mechanism I.

[0040] According to a preferred technical solution, the horizontal moving mechanism I includes a connecting rod I, one end of which is connected to the lower end of the sleeve 5, and the other end of which is connected to a propulsion cylinder I18, which is installed on the lifting mechanism.

[0041] According to a preferred technical solution, the lifting mechanism includes a lifting plate 19 and a lifting cylinder 20. The lifting cylinder 20 is vertically arranged, and the upper end of the telescopic rod of the lifting cylinder 20 is fixedly connected to the lifting plate 19. The horizontal moving mechanism I is installed on the lifting plate 19.

[0042] The preferred technical solution is that the bending forming device 3 is provided on one side of the stator 1 rotating device, and the bending forming device 3 includes a frame III8, a baffle 13, a base 6, a horizontal moving mechanism II and a horizontal moving mechanism III. The baffle 13 is mounted on the frame III8 and moves through the horizontal moving mechanism II. The moving direction of the baffle 13 is consistent with the tangential direction of the stator 1. The baffle 13 is horizontally arranged and corresponds to the root 1c position of the flat wire 1b. The length direction of the baffle is consistent with the moving direction of the baffle 13. The frame III8 is mounted on the base 6 and moves through the horizontal moving mechanism III. The moving direction of the frame III8 is perpendicular to the moving direction of the baffle 13. When the flat wire pushing and pulling device 2 pulls the flat wire 1b outward, the horizontal moving mechanism II drives the baffle 13 to move to the inner side of the flat wire 1b, and then drives the frame III8 and the horizontal moving mechanism II to move outward through the horizontal moving mechanism III, so that the baffle 13 is against the inner side of the flat wire 1b, so that when the flat wire pushing and pulling device 2 pushes the flat wire 1b inward, the baffle 13 is against the root 1c position of the flat wire 1b, so that the root 1c position cannot move inward, thereby bending and forming a bulge at the root 1c position of the flat wire 1b.

[0043] The preferred technical solution is that the horizontal moving mechanism II includes a horizontal slide rail I10 installed on the top of the frame III8, the length direction of the horizontal slide rail I10 is consistent with the moving direction of the baffle 13, and a slider 11 is slidingly provided on the horizontal slide rail I10. The slider 11 is fixedly connected to the baffle 13 through a connecting rod, and one side of the horizontal slide rail I10 is provided with a propulsion cylinder II12 fixedly installed on the frame III8, and the telescopic rod of the propulsion cylinder II12 is connected to the slider 11 to push the slider 11 to move, thereby driving the baffle 13 to move.

[0044] The preferred technical solution is that the horizontal moving mechanism III includes a horizontal slide rail II7 installed on the base 6, the length direction of the horizontal slide rail II7 is perpendicular to the moving direction of the blocking rod 13, the lower end of the frame III8 is matched and installed on the horizontal slide rail II7 for movement, and a propulsion cylinder III9 is ​​also installed on the base 6, and the telescopic rod of the propulsion cylinder III9 is ​​connected to the frame III8 to push the frame III8 to move.

[0045] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. These are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0047] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A method for expanding the layers of a stator flat wire, characterized in that: The following steps are involved: S1. Place the stator (1) so that the end of the flat wire (1b) exposed on the stator (1) faces downward; S2, pulling the end of the flat wire (1b) on the stator (1) that needs to be expanded toward the outside of the stator (1), so that the flat wire (1b) tilts outward; S3, restricting the portion of the flat wire (1b) close to the stator (1) so that it cannot move inward; S4. Push the flat wire (1b) inwards, so that the portion of the flat wire (1b) close to the stator (1) bulges outwards to form a bulge, and the end of the flat wire (1b) remains vertical.

2. A device for expanding a stator flat wire according to the method of claim 1, characterized in that: The invention comprises a stator (1) rotating device, a flat wire push-pull device (2) and a bending and forming device (3), wherein the stator (1) rotating device is used to drive the stator (1) to rotate, the flat wire push-pull device (2) is used to pull the flat wire (1b) outward and push the flat wire (1b) inward, and the bending and forming device (3) is used to restrict the portion of the flat wire (1b) close to the stator (1) from moving inward after the flat wire push-pull device (2) pulls the flat wire (1b) outward, and cooperates with the flat wire push-pull device (2) to push the flat wire (1b) inward to form a bulge on the flat wire (1b).

3. The stator flat wire expansion device according to claim 2, characterized in that: The stator (1) rotating device comprises a frame I (14), a stator fixing seat (15) for placing the stator (1) and a rotating drive mechanism for driving the stator fixing seat (15) to rotate, wherein the lower end of the stator fixing seat (15) is rotatably mounted on the upper end of the frame I (14) via a rotating shaft I (16), and the rotating drive mechanism comprises a rotating motor I (17), wherein the rotating motor I (17) is mounted on the frame I (14), and the rotating motor I (17) drives the rotating shaft I (16) to rotate.

4. The stator flat wire expansion device according to claim 2, characterized in that: The flat wire push-pull device (2) is arranged on one side of the stator (1) rotating device, and comprises a frame II (4), a vertically arranged sleeve (5), a horizontal moving mechanism I and a lifting mechanism, wherein the upper end of the sleeve (5) is provided with a plug hole extending downward, and the sleeve (5) is driven by the horizontal moving mechanism I to move along the radial extension direction of the stator (1), and the horizontal moving mechanism I is driven to be lifted and lowered by the lifting mechanism, and the lifting mechanism is installed on the frame II (4).

5. The stator flat wire expansion device according to claim 4, characterized in that: The horizontal moving mechanism I comprises a connecting rod I, one end of which is connected to the lower end of the sleeve (5), and the other end of which is connected to a propulsion cylinder I (18). The propulsion cylinder I (18) is installed on the lifting mechanism, and the sleeve (5) is driven to move horizontally by the propulsion cylinder I (18).

6. The stator flat wire expansion device according to claim 4, characterized in that: The lifting mechanism comprises a lifting plate (19) and a lifting cylinder (20), wherein the lifting cylinder (20) is vertically arranged, and the upper end of the telescopic rod of the lifting cylinder (20) is fixedly connected to the lifting plate (19), and the horizontal moving mechanism I is installed on the lifting plate (19), and the lifting cylinder (20) pushes the horizontal moving mechanism I to move up and down.

7. The stator flat wire expansion device according to claim 2, characterized in that: The bending and forming device (3) is arranged on one side of the stator (1) rotating device, and comprises a frame III (8), a baffle (13), a base (6), a horizontal moving mechanism II and a horizontal moving mechanism III. The baffle (13) is mounted on the frame III (8) for movement through the horizontal moving mechanism II, and the moving direction of the baffle (13) is consistent with the tangent direction of the stator (1). The baffle (13) is arranged horizontally, and the frame III (8) is mounted on the base (6) for movement through the horizontal moving mechanism III, and the moving direction of the frame III (8) is perpendicular to the moving direction of the baffle (13).

8. The stator flat wire expansion device according to claim 7, characterized in that: The horizontal moving mechanism II includes a horizontal slide rail I (10) installed on the top of the frame III (8), the length direction of the horizontal slide rail I (10) is consistent with the moving direction of the blocking rod (13), a slider (11) is slidably provided on the horizontal slide rail I (10), and the slider (11) is fixedly connected to the blocking rod (13) through a connecting rod. One side of the horizontal slide rail I (10) is provided with a propulsion cylinder II (12) fixedly installed on the frame III (8), and the telescopic rod of the propulsion cylinder II (12) is connected to the slider (11) to push the slider (11) to move.

9. The stator flat wire expansion device according to claim 7, characterized in that: The horizontal moving mechanism III comprises a horizontal slide rail II (7) mounted on a base (6), the length direction of the horizontal slide rail II (7) being perpendicular to the moving direction of the blocking rod (13), the lower end of the frame III (8) being matched and mounted on the horizontal slide rail II (7) for movement, and a propulsion cylinder III (9) being further mounted on the base (6), the telescopic rod of the propulsion cylinder III (9) being connected to the frame III (8) for pushing the frame III (8) to move.

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