Motor winding coil winding tooling and motor winding coil winding equipment

Abstract

The present invention provides a winding tooling for motor winding coils and a motor winding coil winding device, which includes a winding shaft. The outer peripheral surface of the winding shaft is provided with a receiving groove for accommodating a wire. The receiving groove has two abutting groove walls for abutting against the wire in the extending direction of the winding shaft. The first abutting groove wall of the two abutting groove walls is arranged at an acute angle or an obtuse angle with respect to the extending direction of the winding shaft, so that the connection line between the two ends of the wire segment abutting against the first abutting groove wall is arranged at an acute angle or an obtuse angle with respect to the extending direction of the winding shaft. During the wire winding process, the wire is not easily loosened, and the winding quality is high.

Description

Technical Field

[0001] The present invention relates to the field of motor manufacturing, and more particularly, to a winding tool for motor winding coils and a motor winding coil winding device. Background Art

[0002] During the machining and manufacturing process of a motor, a winding device is required to wind and form a winding coil installed on the stator of the motor.

[0003] It has been found through research that the existing winding devices for winding motor winding coils have the following disadvantages:

[0004] During the coil winding process, the coil is not wound tightly or there is a layer shift. Summary of the Invention

[0005] The purpose of the present invention is to provide a winding tool for motor winding coils and a motor winding coil winding device, which can improve the tightness of coil winding and is not prone to layer shift.

[0006] The embodiments of the present invention are implemented as follows:

[0007] In a first aspect, an embodiment of the present invention provides a winding tool for motor winding coils, which includes:

[0008] A winding shaft, on the outer peripheral surface of which there is a receiving groove for accommodating a wire. The receiving groove has two abutting groove walls for abutting against the wire in the extending direction of the winding shaft. The first abutting groove wall of the two abutting groove walls is arranged at an acute angle or an obtuse angle with respect to the extending direction of the winding shaft, so that the connection line between the two ends of the wire segment abutting against the first abutting groove wall is arranged at an acute angle or an obtuse angle with respect to the extending direction of the winding shaft.

[0009] In an alternative embodiment, the second abutting groove wall of the two abutting groove walls is arranged parallel to the first abutting groove wall.

[0010] In an alternative embodiment, the outer contour shape of the cross-section of the winding shaft is square. One side surface of the winding shaft is a limiting surface, and the receiving groove is arranged on the limiting surface, and both ends of the receiving groove extend to the two side surfaces connected to the limiting surface respectively, where the cross-section refers to a plane perpendicular to the extending direction of the winding shaft.

[0011] In an alternative embodiment, a positioning portion for positioning the wire in direct contact with the outer peripheral surface of the winding shaft is provided on the outer peripheral surface of the winding shaft to limit the sliding of the wire wound on the outer peripheral surface along the extending direction of the winding shaft.

[0012] In an alternative embodiment, the positioning portion is arranged at the connection position of two adjacent side surfaces in the circumferential direction of the winding shaft and / or at the connection position of the bottom wall of the receiving groove and the side surface of the winding shaft.

[0013] In an alternative embodiment, the positioning portion is provided as a groove.

[0014] In an alternative embodiment, the motor winding coil winding tooling further includes two annular blocking members sleeved outside the winding shaft. The two annular blocking members are arranged at intervals in the extending direction of the winding shaft, and the accommodating groove is located between the two annular blocking members.

[0015] In an alternative embodiment, the abutting groove wall extends to the inner side wall of the corresponding annular blocking member, and the inner side wall is used for abutting against the wire.

[0016] In an alternative embodiment, the winding shaft includes a first shaft section and a second shaft section in its extending direction. The first shaft section and the second shaft section are detachably connected, and the first shaft section and the second shaft section cooperate to jointly form the accommodating groove.

[0017] In a second aspect, an embodiment of the present invention provides a motor winding coil winding device, which includes:

[0018] A wire outlet tooling and the motor winding coil winding tooling according to any one of the foregoing embodiments. The wire outlet tooling is used to lead out the wire and can move relative to the winding shaft in the extending direction of the winding shaft, so as to cooperate with the rotation of the winding shaft to wind a continuously arranged coil on the outer peripheral surface of the winding shaft in the extending direction of the winding shaft.

[0019] The beneficial effects of the embodiments of the present invention are:

[0020] To sum up, this embodiment provides a motor winding coil winding tooling. When winding the first layer of coils in direct contact with the winding shaft on the outer peripheral surface of the winding shaft, first fix one end of the wire on the winding shaft, and then wind the wire in the accommodating groove. The wire first contacts the first abutting groove wall of the accommodating groove. Under the action of the abutting groove wall, the wire can be wound obliquely and the inclination angle of the wire is limited by the abutting groove wall. The wire can always be wound at a set oblique angle, and the wire is not easily loosened during the oblique winding process, and multiple continuous coils are arranged closely. Moreover, the wire is wound at a set angle to form multiple continuous coils, and the wire is not easily strung during the winding process.

[0021] This embodiment also provides a motor winding coil winding device, which includes the above-mentioned winding tooling, and the coil winding quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Structural schematic diagram of the winding tooling according to an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of a deformed structure of the winding tooling according to an embodiment of the present invention;

[0025] Figure 3 Cross-sectional schematic diagram of the winding shaft according to an embodiment of the present invention;

[0026] Figure 4 Top view of the winding tooling according to an embodiment of the present invention;

[0027] Figure 5 is Figure 4 Partial enlarged schematic diagram at position A in

[0028] Figure 6 Structural schematic diagram of another deformed structure of the winding tooling according to an embodiment of the present invention.

[0029] Icon:

[0030] 100 - winding shaft; 101 - first shaft section; 102 - second shaft section; 110 - receiving groove; 111 - first abutting groove wall; 112 - second abutting groove wall; 120 - limiting surface; 130 - first side surface; 140 - second side surface; 150 - third side surface; 160 - positioning portion; 200 - annular blocking member. Detailed implementation manners

[0031] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but is merely representative of selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0033] It should be noted that like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the inventive product is customarily placed during use. It is 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0035] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0036] In the description of the present invention, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] Please refer to Figures 1-6 , this embodiment provides a winding tool for motor winding coils, which is used for winding wires into coils, especially for winding motor winding coils. During the wire winding process, the wires are arranged tightly and it is not easy to have the situation of layer stringing, and the winding quality is high.

[0038] Obviously, this winding tool can also be applicable to winding coils of other products that are not motors.

[0039] Please refer to Figure 1 , in this embodiment, the winding tool for motor winding coils includes a winding shaft 100. The winding shaft 100 can rotate around its own axis to wind wires on its outer peripheral surface. An accommodating groove 110 for accommodating wires is provided on the outer peripheral surface of the winding shaft 100. The accommodating groove 110 has two abutting groove walls for abutting against the wires in the extending direction of the winding shaft 100. The first abutting groove wall 111 of the two abutting groove walls is arranged at an angle α with the extending direction of the winding shaft 100, so that the connection line between the two ends of the wire segment abutting against the first abutting groove wall 111 is arranged at an angle α with the extending direction of the winding shaft 100, where α is an acute angle or an obtuse angle.

[0040] When winding the first layer of coils that are in direct contact with the winding shaft 100 on the outer peripheral surface of the winding shaft 100 provided in this embodiment, first fix one end of the wire to the winding shaft 100, and then wind the wire in the accommodation groove 110. The wire first contacts the first abutting groove wall 111 of the accommodation groove 110. Under the action of the first abutting groove wall 111, the wire can be wound obliquely and the inclination angle of the wire is limited by the first abutting groove wall 111. The wire can always be wound at a set oblique angle, and it is not easy to loosen during the oblique winding process of the wire, and multiple continuous coils are arranged closely. And the wire is wound at a set angle to form multiple continuous coils, and it is not easy to have stringing during the winding process of the wire. And the wire gradually approaches the second abutting groove wall 112 among the two abutting groove walls during the winding process, and the coils in the accommodation groove 110 are clamped by the combined action of the first abutting groove wall 111 and the second abutting groove wall 112.

[0041] In this embodiment, optionally, the accommodation groove 110 extends along the circumferential direction of the winding shaft 100, and there is a spacing at both ends of the accommodation groove 110 in its extending direction. In other words, the accommodation groove 110 is not set as an annular groove. Obviously, in other embodiments, the accommodation groove 110 can be set as an annular groove. In this embodiment, the accommodation groove 110 is a strip-shaped groove, and the abutting groove walls of the accommodation groove 110 are not arranged in a ring around the winding shaft 100. When the wire is wound in the accommodation groove 110, the wire segment in contact with the abutting groove wall extends along the inclined direction of the abutting groove wall. When the wire completes the winding at the position of the abutting groove wall and contacts other parts of the outer peripheral surface of the winding shaft 100, the angle of the wire can be adjusted so that the wire is perpendicular to the extending direction of the winding shaft 100 after being wound outside the winding shaft 100. It is set that the wire rotates 360° along the circumferential direction of the winding shaft 100 to form a coil. The wire segment of this coil in contact with the abutting groove wall is an oblique segment, and the rest of the wire segments of this coil except those in contact with the abutting groove wall are arranged perpendicular to the axis of the winding shaft 100. In other words, the plane determined by the rest of the wire segments of this coil is perpendicular to the winding shaft 100. In this way, when winding the same coil, only within the winding angle for forming the oblique segment does the wire have a continuous displacement relative to the axis of the winding shaft 100 in the extending direction of the winding shaft 100, while during the winding process of the rest of the wire segments around the winding shaft 100, the position of the wire and the winding shaft 100 remains unchanged in the extending direction of the winding shaft 100, thereby reducing the winding difficulty and improving the winding quality.

[0042] In this embodiment, optionally, the two abutting groove walls of the accommodation groove 110 in the extending direction of the winding shaft 100 are parallel, and the distance between the two abutting groove walls is an integer multiple of the diameter of the wire to be wound, so that the wire can be wound tightly in the accommodation groove 110.

[0043] In this embodiment, optionally, the winding shaft 100 can be a cylindrical shaft or a square columnar shaft, etc. That is to say, the cross-sectional shape of the winding shaft 100 can be circular or square, etc. In this embodiment, the case where the cross-sectional shape of the winding shaft 100 is square will be taken as an example for description.

[0044] Please refer to Figures 3-5 , the winding shaft 100 includes a continuous first side surface 130, a second side surface 140, a third side surface 150 and a limiting surface 120. In other words, the first side surface 130 and the third side surface 150 are opposite, and the second side surface 140 and the limiting surface 120 are opposite. The first side surface 130, the second side surface 140, the third side surface 150 and the limiting surface 120 are all rectangular surfaces. A receiving groove 110 is provided on the limiting surface 120, and the groove depth of the receiving groove 110 extends in a direction perpendicular to the limiting surface 120. The receiving groove 110 extends to the first side surface 130 and the third side surface 150 respectively at both ends in its extending direction. When winding the wire, the driving member can be used to drive the winding shaft 100 to rotate around its own axis, so as to wind the wire on its outer peripheral surface.

[0045] In this embodiment, the receiving groove 110 is provided on the limiting surface 120. During the wire winding process, the wire is wound obliquely in the receiving groove 110. When the wire is wound on the first side surface 130, the second side surface 140 and the third side surface 150, it can be wound perpendicular to the axis of the winding shaft 100. The wire does not need to be wound obliquely in the entire circumference of the winding shaft 100, reducing the winding difficulty. Specifically, it is set that the wire initially abuts against the abutting groove wall at the rear end close to the first direction in the first direction. The wire is gradually wound in the receiving groove 110 along the first direction. After the wire completes the winding of the abutting groove wall, it enters the first side surface 130 and is wound on the first side surface 130. At this time, the wire can be driven to generate a displacement relative to the winding shaft 100 in the second direction opposite to the first direction, so that the wire that forms an acute angle or an obtuse angle with the winding shaft 100 forms a right angle with the winding shaft 100. The wire is successively wound on the first side surface 130, the second side surface 140 and the third side surface 150, and the shape formed by the wire segments on the first side surface 130, the second side surface 140 and the third side surface 150 is perpendicular to the axis of the winding shaft 100. During the process of winding a coil, it is only necessary to change the direction of the wire when winding the first side surface 130, so as to adjust the displacement of the wire and the winding shaft 100 in the extending direction of the winding shaft 100 once, and there is no need to always maintain a relative displacement between the wire and the winding shaft 100, reducing the winding difficulty.

[0046] In this embodiment, optionally, a positioning portion 160 for positioning the wire in direct contact with the outer peripheral surface of the winding shaft 100 is provided on the outer peripheral surface of the winding shaft 100 to limit the wire wound on the outer peripheral surface from sliding along the extending direction of the winding shaft 100.

[0047] Optionally, the positioning portion 160 may be provided at the connection position of two adjacent side surfaces in the circumferential direction of the winding shaft 100 and / or at the connection position of the bottom wall of the accommodating groove 110 and the side surface of the winding shaft 100. The positioning portion 160 is a groove. Further, the positioning portion 160 is an arc-shaped groove. When the wire is wound, a part of the wire is embedded in the positioning portion 160, thereby further improving the winding tightness of the wire and making it not easy to loosen. In other words, during the wire winding process, the wire not only maintains the tightness by abutting against the already wound coil, but also relies on the positioning portion 160 for positioning, so that the wire is not easy to loosen in the extending direction of the winding shaft 100, and the coil compactness is improved.

[0048] Please refer to Figure 2 , optionally, the winding shaft 100 may be a single shaft, that is, the winding shaft 100 is integrally formed; in this embodiment, the winding shaft 100 is of a segmented structure. The winding shaft 100 includes a first shaft segment 101 and a second shaft segment 102. The first shaft segment 101 and the second shaft segment 102 are detachably connected, and the first shaft segment 101 and the second shaft segment 102 cooperate to jointly form the accommodating groove 110. After the coil winding is completed, the first shaft segment 101 and the second shaft segment 102 are separated from each other, so as to facilitate the removal of the coil.

[0049] In this embodiment, optionally, the motor winding coil winding tooling further includes two annular blocking members 200 sleeved outside the winding shaft 100. The two annular blocking members 200 are arranged at intervals in the extending direction of the winding shaft 100, and the accommodating groove 110 is located between the two annular blocking members 200. When the wire winding process is completed and the wire in the accommodating groove 110 is wound to form an inner layer coil, the wire is further wound on the basis of the inner layer coil to form a plurality of sleeved coil cylinders arranged in the radial direction of the winding shaft 100. The coil cylinders are blocked by the annular blocking members 200, so as to ensure that the plurality of coil cylinders are not easy to loosen in the extending direction of the winding shaft 100.

[0050] It should be noted that the structure for positioning may not be an annular blocking member. One or more blocking plates may be respectively arranged on the first side surface 130, the second side surface 140, the third side surface 150 and the positioning surface 120, and the function of blocking the wire can also be realized.

[0051] Further, the abutting groove wall extends to the inner side wall of the corresponding annular blocking member 200, and the inner side wall is used for abutting against the wire. In other words, the structure formed between the abutting groove wall and the corresponding annular blocking member 200 is triangular. When the coil winding in the accommodating groove 110 is completed and the coil is wound again on the outer periphery of the already wound coil, the coil can directly abut against the annular blocking member 200 and be positioned by the annular blocking member 200, so as to avoid the coil from loosening in the extending direction of the winding shaft 100 and improve the winding quality.

[0052] Please refer toFigure 6 It should be noted that the number of the accommodating grooves 110 on the outer surface of the winding shaft 100 can be two, three or four, etc., that is, the number of the accommodating grooves 110 is not specifically limited and can be designed according to the number of coils to be wound. When the number of the accommodating grooves 110 is multiple, the multiple accommodating grooves 110 are arranged at intervals along the extension direction of the winding shaft 100.

[0053] The motor winding coil winding tooling provided in this embodiment is not easy for the wire to get loose during the winding process, and the coils are arranged tightly and have high quality.

[0054] The present embodiment also provides a motor winding coil winding device, including a wire outlet tool and the above-mentioned winding tool, wherein the wire outlet tool is used to arrange the wires and wind the wires on the outer peripheral surface of the winding shaft 100 in cooperation with the rotation of the winding shaft 100. The wire outlet tool can reciprocate relative to the winding shaft 100 in the extension direction of the winding shaft 100. In addition, the wire outlet of the wire outlet tool can lead out multiple parallel wires at the same time, and multiple parallel wires can be wound outside the winding shaft 100 at the same time, thereby improving the winding efficiency.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A winding tool for an electric motor winding coil, characterized in that, It includes: A winding shaft, on the outer peripheral surface of which there is a receiving groove for accommodating a wire. The receiving groove has two abutting groove walls for abutting against the wire in the extending direction of the winding shaft. The first abutting groove wall of the two abutting groove walls is arranged at an acute angle or an obtuse angle with respect to the extending direction of the winding shaft, so that the connection line between the two ends of the wire segment abutting against the first abutting groove wall is arranged at an acute angle or an obtuse angle with respect to the extending direction of the winding shaft; The second abutting groove wall of the two abutting groove walls is arranged parallel to the first abutting groove wall; The outer contour shape of the cross-section of the winding shaft is square. One side surface of the winding shaft is a limiting surface. The receiving groove is arranged on the limiting surface, and both ends of the receiving groove respectively extend to two side surfaces connected to the limiting surface. Herein, the cross-section refers to a plane perpendicular to the extending direction of the winding shaft.

2. The motor winding coil winding tooling according to claim 1, wherein: On the outer peripheral surface of the winding shaft, there is a positioning portion for positioning the wire in direct contact with the outer peripheral surface of the winding shaft, so as to limit the wire wound on the outer peripheral surface from sliding along the extending direction of the winding shaft.

3. The motor winding coil winding tooling according to claim 2, wherein: The positioning portion is arranged at the connection position of two adjacent side surfaces in the circumferential direction of the winding shaft and / or at the connection position of the bottom wall of the receiving groove and the side surface of the winding shaft.

4. The motor winding coil winding tooling according to claim 2, wherein: The positioning portion is arranged as a groove.

5. The motor winding coil winding tooling according to claim 1, wherein: The motor winding coil winding tooling further includes two annular blocking members sleeved outside the winding shaft. The two annular blocking members are arranged at intervals in the extending direction of the winding shaft, and the receiving groove is located between the two annular blocking members.

6. The motor winding coil winding tooling according to claim 5, wherein: The abutting groove wall extends to the inner side wall of the corresponding annular blocking member, and the inner side wall is used for abutting against the wire.

7. The motor winding coil winding tooling according to claim 1, wherein: The winding shaft includes a first shaft section and a second shaft section in its extending direction. The first shaft section and the second shaft section are detachably connected, and the first shaft section and the second shaft section cooperate to jointly form the receiving groove.

8. A motor winding coil winding device, characterized in that, The motor winding coil winding equipment includes: A wire outlet tooling and the motor winding coil winding tooling according to any one of claims 1-7. The wire outlet tooling is used to lead out the wire and can move relative to the winding shaft in the extending direction of the winding shaft, so as to cooperate with the self-rotation of the winding shaft to wind a coil continuously arranged in the extending direction of the winding shaft on the outer peripheral surface of the winding shaft.

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