A launching propulsion coil forming tool and forming method

Abstract

The application provides a launching propulsion coil forming tool and forming method, which comprises a base, a base plate, a plurality of moving sliders, a driving assembly, a first movable block, a second movable block, a stop block, a push block and a pressing plate; the base plate is arranged on the base; each moving slider is arranged in a corresponding guide hole in a sliding manner; the driving assembly is arranged on the lower side of the base plate and connected with the moving sliders; the first movable block is arranged on the base plate and located at the upper nose end of the propulsion coil; the second movable block is arranged on the base plate and located at the lower nose end of the propulsion coil; the stop block is arranged on the base plate and enveloped outside the propulsion coil in the circumferential direction; the push block is arranged between the propulsion coil and the moving sliders after the outer contour of the propulsion coil is shaped; and the pressing plate is arranged on the upper part of the propulsion coil after the inner part of the propulsion coil is shaped. The application can solve the technical problem that the existing winding tool and winding process cannot meet the launching propulsion coil with a relatively complex shape.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of propulsion coil, in particular to a launching propulsion coil forming tool and forming method. BACKGROUND

[0002] The ground module is an important part of the magnetic levitation rail transit system, and the ground module installed on the track on both sides of the magnetic levitation train interacts with the superconducting magnet installed on the magnetic levitation train to provide propulsion force for the magnetic levitation train. The size precision of the propulsion coil will greatly affect the electromagnetic performance of the coil, and then affect the propulsion force of the coil.

[0003] The propulsion coil of the magnetic levitation stator module has multiple structural forms. For the runway type propulsion coil with simple structure, only ordinary winding tool and winding process are needed to form the coil. However, for the propulsion coil with complex shape, special tool and process are needed to ensure the size precision of the coil.

[0004] At present, the existing winding tool and winding process cannot meet the launching propulsion coil with complex shape. SUMMARY

[0005] The present application provides a launching propulsion coil forming tool and forming method, which can solve the technical problem that the existing winding tool and winding process cannot meet the launching propulsion coil with complex shape.

[0006] According to one aspect of the present application, a launching propulsion coil forming tool is provided, the propulsion coil has a misalignment structure in the thickness direction, and the tool comprises a base, a base plate, a plurality of moving sliders, a driving assembly, a first movable block, a second movable block, a stop block, a push block and a pressing plate.

[0007] The base plate is arranged on the base, and has a misalignment structure matched with the propulsion coil, so that the upper surface of the base plate is in contact with the lower surface of the propulsion coil. A plurality of guide holes are arranged on the base plate in the radial direction.

[0008] Each moving slider is arranged in the corresponding guide hole in a relative sliding manner, and is used for expanding and shaping the propulsion coil.

[0009] The driving assembly is arranged on the lower side of the base plate and connected with the moving sliders, and is used for driving each moving slider to slide along the corresponding guide hole.

[0010] The first movable block is arranged on the base plate and located at the upper nose end of the propulsion coil, and is used for positioning and fixing the propulsion coil during expansion.

[0011] The second movable block is arranged on the base plate and at the lower nose end of the push coil, and is used for realizing the size control of the push coil;

[0012] The stop block is arranged on the base plate and envelops the push coil in the circumferential outer side, and is used for shaping the outer contour of the push coil during the circumferential outward sliding of the moving slider;

[0013] The push block is arranged between the push coil and the moving slider after the completion of the outer contour shaping of the push coil, and is used for shaping the inside of the push coil during the circumferential outward sliding of the moving slider;

[0014] The pressing plate is arranged on the upper part of the push coil after the completion of the inside shaping of the push coil, so as to realize the thickness direction shaping of the push coil.

[0015] Preferably, the driving assembly comprises a plurality of bearing seats and a plurality of lead screws, the bearing seats are installed on the lower surface of the base plate and are used for the installation and rotation of the lead screws; the two ends of each lead screw are respectively installed with one bearing seat, each lead screw is connected with the corresponding moving slider and drives the relative sliding of the moving slider along the corresponding guide hole.

[0016] Preferably, the pressing plate is connected with the base plate through bolts.

[0017] According to another aspect of the present application, a push coil forming method is provided, the method uses any of the above tooling to form a push coil, and the method comprises:

[0018] The middle position of the long strip-shaped push coil is expanded in the pushing direction;

[0019] The first movable block is inserted into the upper nose end of the push coil, the second movable block is inserted into the lower nose end of the push coil, then the first movable block is fixed to one end of the base plate staggered structure, the upper nose end of the push coil is fixed, the second movable block is fixed to the other end of the base plate staggered structure, and the lower nose end of the push coil is relatively slidable with the second movable block;

[0020] The driving assembly drives each moving slider to slide outward along the radial direction until the outside of the push coil gradually contacts the stop block, so as to realize the expansion and outer contour shaping of the push coil;

[0021] After the completion of the outer contour shaping of the push coil, the driving assembly drives each moving slider to slide inward along the radial direction, and the push block is placed between the push coil and the moving slider;

[0022] The driving assembly continues to drive each movable slider to slide radially outward until the push block gradually contacts the inner side of the propulsion coil, thereby achieving internal shaping of the propulsion coil;

[0023] After the internal shaping of the propulsion coil is completed, the pressing plate is pressed against the propulsion coil and fixedly connected to the base plate to complete the thickness direction shaping of the propulsion coil.

[0024] Preferably, the expansion distance of the middle position of the propulsion coil is not less than 300 mm.

[0025] Preferably, the method further comprises: placing the completed propulsion coil together with the forming tooling into an oven for heat curing, so that the turns of the propulsion coil are bonded together into a whole, thereby completing the shaping of the propulsion coil.

[0026] Preferably, the propulsion coil is formed by winding a monofilament enameled wire with insulating varnish for self-adhesion.

[0027] The application of the technical solution of the present invention, the use of the molding tool and the molding method of the present invention can ensure the dimensional accuracy of complex coils, thereby ensuring the electromagnetic performance of the coils. The present invention can be applied to propulsion coils with relatively complex shapes for aerospace electromagnetic launches. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the embodiments of the present invention, constitute a part of the specification, illustrate the embodiments of the present invention, and together with the description, explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0029] Figure 1 A schematic structural diagram of a launch propulsion coil forming tooling provided according to an embodiment of the present invention is shown;

[0030] Figure 2 A schematic diagram showing a transmitting propulsion coil provided in an embodiment of the present invention being pulled apart along the propulsion direction is shown;

[0031] Figure 3 A schematic diagram showing the assembly of a transmitting propulsion coil on a tooling according to an embodiment of the present invention is shown;

[0032] Figure 4a A front view schematic diagram of completing the outer contour shaping of a launch propulsion coil according to an embodiment of the present invention is shown;

[0033] Figure 4b A schematic diagram of the reverse side of the outer contour shaping of the launch propulsion coil according to an embodiment of the present invention is shown;

[0034] Figure 5 A schematic diagram showing the shaping of the inside of the launch propulsion coil is shown according to an embodiment of the present application;

[0035] Figure 6 A schematic diagram showing the shaping of the thickness direction of the launch propulsion coil is shown according to an embodiment of the present application.

[0036] Wherein, the above drawings include the following reference signs:

[0037] 1, base plate; 2, bearing seat; 3, screw rod; 4, moving slider; 5, push block; 6, first movable block; 7, second movable block; 8, pressing plate; 9, stop block; 10, base; 11, propulsion coil. DETAILED DESCRIPTION

[0038] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0039] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should also be understood that when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0040] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the Examples are not intended to limit the scope of the application unless specifically so stated. Also, it is to be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale as the drawings are shown for purposes of convenience and clarity. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art can not be discussed in detail, but are to be considered part of the specification, where appropriate. In all examples shown and discussed herein, any specific values are to be interpreted as merely illustrative and not as a limitation of the exemplary embodiments. Thus, other examples of the exemplary embodiments can have different values. It is to be noted that like numbers and letters refer to like elements throughout the several views of the drawings and that one or more specific embodiments can be substantially similar to the examples described herein. Thus, for the avoidance of doubt, any subsequent occurrence of a reference numeral together with a lower case letter refers to those parts of the specific embodiment that can be significantly different from the reference numerals discussed above.

[0041] As shown in Figure 1 The present application provides a kind of launch propelling coil forming tool, the propelling coil exists staggered structure in thickness direction, the tool includes base, substrate, several mobile sliders, drive assembly, first movable block, second movable block, stop block, push block and pressing plate;

[0042] The substrate is arranged on the base, the substrate has staggered structure compatible with the propelling coil, to make the upper surface of the substrate contact with the lower surface of the propelling coil, the substrate is provided with several guide holes along the radial direction;Specifically, the substrate is composed of two plates connected, and the two plates are not on the same horizontal plane;

[0043] Each of the mobile sliders is arranged in the corresponding guide hole for relative sliding, for expanding and shaping the propelling coil;

[0044] The drive assembly is arranged on the lower side of the substrate and connected with the mobile slider, for driving each of the mobile sliders to slide along the corresponding guide hole;

[0045] The first movable block is arranged on the substrate and at the upper nose end of the propelling coil, for positioning and fixing when the propelling coil is expanded;Wherein, the upper nose end of the propelling coil is the end of the propelling coil in the thickness direction without staggered structure and away from the lead-out wire;

[0046] The second movable block is arranged on the substrate and at the lower nose end of the propelling coil, for controlling the size of the coil when the propelling coil is expanded;Wherein, the lower nose end of the propelling coil is the end of the propelling coil in the thickness direction without staggered structure and close to the lead-out wire;The second movable block also facilitates disassembly after coil shaping;

[0047] The stopper is arranged on the base plate and envelops the periphery of the advancing coil, and is used to shape the outer contour of the advancing coil during the outward sliding of the moving slider along the periphery.

[0048] The pushing block is arranged between the advancing coil and the moving slider after the shaping of the outer contour of the advancing coil, and is used to shape the inner part of the advancing coil during the outward sliding of the moving slider along the periphery.

[0049] The pressing plate is arranged on the upper part of the advancing coil after the shaping of the inner part of the advancing coil, so as to realize the thickness direction shaping of the advancing coil.

[0050] The forming tool and the forming method can guarantee the size precision of the complex coil, and further guarantee the electromagnetic performance of the coil.

[0051] According to an embodiment of the present application, the driving assembly comprises a plurality of bearing seats and a plurality of lead screws, the bearing seats are installed on the lower surface of the base plate and used for the installation and rotation of the lead screws; one bearing seat is installed on each end of each lead screw, each lead screw is connected with the corresponding moving slider and drives the relative sliding of the moving slider along the corresponding guide hole.

[0052] According to an embodiment of the present application, the pressing plate is connected with the base plate through bolts.

[0053] For the magnetic suspension advancing coil, the single-wire enameled wire is usually used to wind and form a self-adhesive Z wire, and then the wound and formed advancing coil is sent into an oven for temperature setting. For the complex coil, the coil has a polygonal structure and has a spatial dislocation in the thickness direction, so it is almost impossible to be wound and formed at one time and set by the above-mentioned method. The setting method of the coil is consistent with the above-mentioned method, and the present application focuses on the shape forming of the coil.

[0054] As shown in Figures 2-5 The present application further provides a launching advancing coil forming method, which uses the above-mentioned tool to form the advancing coil, and the method comprises the following steps:

[0055] The middle position of the runway type advancing coil wound into a long strip is expanded in the advancing direction (x direction) to obtain the advancing coil with a dislocation structure in the thickness direction (z direction), as shown in Figure 2 Figure 2 Figure 2

[0056] ​​​Insert the first movable block into the upper nose end of the propulsion coil, and insert the second movable block into the lower nose end of the propulsion coil. Then fix the first movable block to one end of the substrate staggered structure and fix the upper nose end of the propulsion coil. Fix the second movable block to the other end of the substrate staggered structure and make the lower nose end of the propulsion coil and the second movable block slide relative to each other. Figure 3 As shown; wherein, the first movable block and the second movable block can be fixed to the base plate by bolts;

[0057] The driving assembly drives each movable slider to slide radially outward until the outer side of the propulsion coil gradually contacts the stopper, thereby achieving expansion and outer contour shaping of the propulsion coil, as shown in FIG4 ;

[0058] After the outer contour of the propulsion coil is shaped, the driving assembly drives each movable slider to slide radially inward and places the push block between the propulsion coil and the movable slider;

[0059] The driving assembly continues to drive each movable slider to slide radially outward until the push block gradually contacts the inner side of the propulsion coil to achieve internal shaping of the propulsion coil, such as Figure 5 As shown;

[0060] After the internal shaping of the propulsion coil is completed, the pressing plate is pressed against the propulsion coil and fixedly connected to the base plate to complete the thickness direction shaping of the propulsion coil, such as Figure 6 As shown, the propulsion coil forming is now completed.

[0061] According to one embodiment of the present invention, the spreading distance of the middle portion of the propulsion coil is not less than 300 mm to facilitate the installation of the coil on the forming tool.

[0062] According to one embodiment of the present invention, the method further includes placing the completed propulsion coil and the forming tool in an oven for thermal curing, thereby bonding the turns of the propulsion coil into a single unit and completing the shaping of the propulsion coil. The coil can be removed from the tool by sequentially removing the pressure plate, push block, and movable block, thereby obtaining the completed propulsion coil.

[0063] The present invention first winds the coil into a long runway-shaped coil along the thickness offset direction, then expands and shapes the coil using the tooling of the present invention, and finally places the coil in an oven for shaping, thereby obtaining a propulsion coil with a relatively complex shape suitable for aerospace electromagnetic launch.

[0064] Parts of the present invention that are not described in detail are well known to those skilled in the art.

[0065] In the description of the application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0066] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0067] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the differentiation of the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the scope of protection of the application.

[0068] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A launch propulsion coil forming tool, characterized in that: The propulsion coil has a staggered structure in the thickness direction, and the tooling includes a base, a base plate, a plurality of movable sliders, a drive assembly, a first movable block, a second movable block, a stop block, a push block and a pressure plate; The substrate is arranged on the base, and has a staggered structure adapted to the propulsion coil so that the upper surface of the substrate contacts the lower surface of the propulsion coil, and a plurality of guide holes are provided in the radial direction on the substrate; Each of the movable sliders is slidably disposed in the corresponding guide hole, and is used to expand and shape the propulsion coil; The driving assembly is disposed on the lower side of the base plate and is connected to the movable slider, and is used to drive each movable slider to slide relatively along the corresponding guide hole; The first movable block is provided on the base plate and is located at the upper nose end of the propulsion coil, and is used to position and fix the propulsion coil during expansion; The second movable block is provided on the substrate and is located at the lower nose end of the propulsion coil, and is used to control the coil size when the coil is propulsion; The stopper is provided on the base plate and envelops the outer circumferential side of the propulsion coil, and is used to shape the outer contour of the propulsion coil during the process of the movable slider sliding outward along the circumferential direction; After the outer contour of the propulsion coil is shaped, the push block is arranged between the propulsion coil and the movable slider, and is used to shape the interior of the propulsion coil during the process of the movable slider sliding outward in the circumferential direction; After completing the internal shaping of the propulsion coil, the pressing plate is covered on the upper part of the propulsion coil to achieve the shaping of the propulsion coil in the thickness direction.

2. The tooling according to claim 1, characterized in that: The driving assembly shown includes several bearing seats and several screws. The bearing seats are installed on the lower surface of the base plate and are used for the installation and rotation of the screws. A bearing seat is installed at each end of each screw. Each screw is connected to the corresponding movable slider to drive the movable slider to slide relative to the corresponding guide hole.

3. The tooling according to claim 1 and 2, characterized in that: The pressing plate is connected to the base plate through bolts.

4. A method for forming a launch propulsion coil, characterized in that: The method uses the tooling according to any one of claims 1 to 3 to advance coil forming, and the method comprises: The middle part of the runway-shaped propulsion coil wound into a long strip is expanded along the propulsion direction; Insert the first movable block into the upper nose of the propulsion coil and the second movable block into the lower nose of the propulsion coil. Then, fix the first movable block to one end of the base plate staggered structure and the upper nose of the propulsion coil. Fix the second movable block to the other end of the base plate staggered structure so that the lower nose of the propulsion coil and the second movable block can slide relative to each other. The driving assembly drives each movable slider to slide radially outward until the outer side of the propulsion coil gradually contacts the stopper, thereby achieving expansion and outer contour shaping of the propulsion coil; After the outer contour of the propulsion coil is shaped, the driving assembly drives each movable slider to slide radially inward and places the push block between the propulsion coil and the movable slider; The driving assembly continues to drive each movable slider to slide radially outward until the push block gradually contacts the inner side of the propulsion coil, thereby achieving internal shaping of the propulsion coil; After the internal shaping of the propulsion coil is completed, the pressing plate is pressed against the propulsion coil and fixedly connected to the base plate to complete the thickness direction shaping of the propulsion coil.

5. The method according to claim 4, characterized in that The expansion distance of the middle part of the propulsion coil shall not be less than 300mm.

6. The method according to claim 4, characterized in that The method further includes: placing the formed propulsion coil together with the forming tool into an oven for thermal curing, so that the turns of the propulsion coil are bonded into a whole, thereby completing the shaping of the propulsion coil.

7. The method according to claim 4, characterized in that The propulsion coil is formed by winding a monofilament enameled wire with an insulating varnish that is self-adhesive.

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