Concentric cup-shaped winding forming equipment

Abstract

The utility model discloses forming equipment for a concentric cup-shaped winding. The forming equipment comprises a tabletting die, an edge rolling machine and a sizing die which are arranged in sequence, the tablet pressing die comprises a tablet pressing die upper contour plate and a tablet pressing die lower contour plate, the tablet pressing die upper contour plate is embedded in the tablet pressing die lower contour plate, a plurality of limiting grooves are formed in the tablet pressing die lower contour plate, a plurality of positioning pins are arranged on the tablet pressing die lower contour plate, and the positioning pins are matched with the limiting grooves; the sizing die comprises an upper sizing die body and a lower sizing die body, and a sizing mandrel is installed between the upper sizing die body and the lower sizing die body. The device is simple in structure and easy to operate, most of the device is used in cooperation with related machines, the error rate in the operation process is reduced, the requirement for the proficiency degree of operators is lowered, the distance between coils is uniform, the percent of pass of the cup-shaped winding is greatly increased, and the production efficiency of the concentric cup-shaped winding is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the field of hollow cup motors, in particular to a forming device for a concentric cup-shaped winding. Background Art

[0002] The production process of the concentric cup winding of the hollow cup motor is to make multiple coils into barrel-shaped cup windings through a series of operations such as arranging, rolling and curing the diamond coils. The concentric cup winding needs to make the roundness of the cup and the gap between the coils as uniform as possible, reduce the unbalance of the concentric cup winding, and improve the stability of the operation of the hollow cup motor.

[0003] The existing cup-type winding shaping process requires that each coil be bent first, and some coils will be damaged and scrapped during the bending process. After the bending is completed, the coils are manually arranged on the core shaft of the shaping mold, and the first shaping is performed using the three-petal mold of the shaping mold. After the first shaping is completed, check the gaps between the coils, remove the uneven coils, and add new coils for a second shaping. This step is repeated many times until the gaps between the coils of the cup-type winding are uniform, then remove the cup-type winding from the core shaft and proceed to the subsequent steps. The existing cup-type winding shaping mold requires the operator to perform many manual steps and has no accurate positioning, which can easily cause problems such as uneven coil gaps between windings and slow production efficiency. Utility Model Content

[0004] The utility model aims to provide a concentric cup-type winding forming device to solve the technical problems of uneven coil gap and low production efficiency caused by complicated operation in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A concentric cup winding forming device comprises a sheet pressing die, a rounding machine and a shaping die which are arranged in sequence;

[0007] The tablet pressing die comprises an upper pressing plate and a lower pressing plate, wherein the upper pressing plate is embedded in the lower pressing plate, a plurality of limit grooves are formed on the lower pressing plate, and a plurality of positioning pins are arranged on the lower pressing plate, wherein the positioning pins cooperate with the limit grooves;

[0008] The shaping die comprises a shaping die upper die and a shaping die lower die, and a shaping mandrel is installed between the shaping die upper die and the shaping die lower die.

[0009] Furthermore, the plurality of limit grooves are all arranged on one side of the pressing plate under the tablet pressing mold.

[0010] Furthermore, the cross section of the upper press plate of the tablet pressing mold is convex, and the cross section of the lower press plate of the tablet pressing mold is concave.

[0011] Furthermore, the protruding portion of the upper press plate of the tablet pressing mold is embedded in the groove of the lower press plate of the tablet pressing mold.

[0012] Furthermore, the positioning pins and the limiting grooves are evenly arranged along the length direction on the lower press plate of the tablet pressing mold.

[0013] Furthermore, there is a certain gap between the upper pressing plate of the tablet pressing mold and the lower pressing plate of the tablet pressing mold.

[0014] Furthermore, an upper molding cavity is formed on the upper mold of the shaping mold, and a lower molding cavity is formed on the lower mold of the shaping mold.

[0015] Furthermore, the upper mold of the shaping mold and the lower mold of the shaping mold are installed through a slot, and the upper molding cavity and the lower molding cavity form an inner hole.

[0016] Furthermore, the shaping mandrel is a cylindrical structure.

[0017] Furthermore, the shaping mandrel is installed coaxially with the inner hole.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model provides a forming device for concentric cup windings. The coils of the concentric cup windings are limited by the positioning pins and limiting holes of the pressing plate under the sheet pressing die. During the sheet pressing stage, the positioning pins and limiting grooves ensure uniform gaps between the coils to prevent misalignment, thereby improving the consistency of the concentric cup windings, reducing the imbalance of the concentric cup windings, and improving the stability of the operation of the hollow cup motor. After being rolled by a rolling machine, the forming die is used to form the windings. Compared with the existing cup winding forming equipment, the utility model has a simple structure and is easy to operate. Most of them are used in conjunction with related machines, which reduces the error rate during operation, reduces the proficiency requirements for operators, and ensures uniform coil spacing, which greatly improves the qualified rate of the cup windings and greatly improves the production efficiency of the concentric cup windings.

[0020] Furthermore, there is a certain gap between the upper pressing plate of the tablet pressing die and the lower pressing plate of the tablet pressing die, which can ensure that the thickness of the sheet coil after tablet pressing meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the forming equipment of the concentric cup winding of the utility model.

[0023] Figure 2 It is a structural schematic diagram of the press plate on the tablet pressing die of the utility model.

[0024] Figure 3 It is a structural schematic diagram of the lower pressing plate of the tablet pressing mold of the utility model.

[0025] Figure 4 It is a structural schematic diagram of the shaping mold of the utility model.

[0026] Figure 5 It is a structural schematic diagram of the shaping mandrel of the utility model.

[0027] Among them: 1- upper pressing plate of tablet pressing die, 2- lower pressing plate of tablet pressing die, 3- positioning pin, 4- upper die of shaping die, 5- lower die of shaping die, 6- shaping mandrel, 7- rolling machine;

[0028] Figure 2 (a) is a top view of the press plate on the tableting die. Figure 2 (b) is a schematic cross-sectional view of the press plate on the tablet pressing die; Figure 3 (a) is a top view of the press plate under the tableting die. Figure 3 (b) is a schematic cross-sectional view of the press plate under the tabletting die; Figure 4 (a) is the top view of the shaping mold. Figure 4 (b) is the front view of the shaping mold; Figure 5 (a) is a top view of the shaping mandrel. Figure 5 (b) is a side view of the shaping mandrel. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The utility model is further described in detail below with reference to the accompanying drawings:

[0036] See also Figure 1 The utility model provides a concentric cup winding forming device, comprising a sheet pressing die, a rolling machine 7 and a shaping die which are arranged in sequence.

[0037] like Figure 2 and Figure 3 As shown, the tablet pressing mold includes an upper pressing plate 1 and a lower pressing plate 2. Figure 2 As shown in (b), the cross section of the pressing plate 1 on the tablet pressing die is a convex shape; Figure 3 As shown in (b), the cross section of the lower press plate 2 of the tablet pressing die is a concave shape. The protruding part of the upper press plate 1 of the tablet pressing die is embedded in the groove of the lower press plate 2 of the tablet pressing die. The upper press plate 1 of the tablet pressing die and the lower press plate 2 of the tablet pressing die are positioned by a slot, and there is a certain gap between the upper press plate 1 of the tablet pressing die and the lower press plate 2 of the tablet pressing die to ensure that the thickness of the sheet coil meets the requirements.

[0038] like Figure 3 As shown in (b), a plurality of limiting grooves are provided on the lower pressing plate 2 of the tablet pressing die, and the plurality of limiting grooves are all arranged on one side of the lower pressing plate 2 of the tablet pressing die. A plurality of positioning pins 3 are provided on the lower pressing plate 2 of the tablet pressing die, and the positioning pins 3 and the limiting grooves are evenly arranged on the lower pressing plate 2 of the tablet pressing die along the length direction. The positioning pins 3 cooperate with the limiting grooves to evenly arrange the coils of the concentric cup winding on the lower pressing plate 2 of the tablet pressing die, ensure uniform gaps between the coils, improve the consistency of the concentric cup winding, reduce the unbalance of the concentric cup winding, and improve the stability of the operation of the hollow cup motor.

[0039] like Figure 4 As shown, the shaping die includes a shaping die upper die 4 and a shaping die lower die 5. The shaping die upper die 4 is provided with an upper molding cavity, and the shaping die lower die 5 is provided with a lower molding cavity. The shaping die upper die 4 and the shaping die lower die 5 are installed as a whole through a slot, and the upper molding cavity and the lower molding cavity form an inner hole to ensure the roundness of the inner hole, as shown in FIG. Figure 4 (a). Figure 5 As shown, the shaping mandrel 6 is a cylindrical structure, and the shaping mandrel 6 is installed in the inner hole between the shaping die upper die 4 and the shaping die lower die 5, and the shaping mandrel 6 is installed coaxially with the inner hole. The inner hole of the shaping die limits the outer diameter of the cup winding, thereby ensuring that the size of the cup winding will not exceed the tolerance after the shaping is completed. The shaping mandrel 6 limits the size of the inner hole of the cup winding, ensuring that the size of the inner hole of the cup winding will not exceed the tolerance.

[0040] The working process of the concentric cup winding forming equipment of the utility model includes:

[0041] The coils of the concentric cup winding are evenly arranged on the lower press plate 2 of the press die through the positioning pins 3 and the limiting grooves on the lower press plate 2 of the press die, and then the arranged sheet coils are further fixed with insulating tape to prevent the coils from being misaligned and causing the coil gap to change. Then a certain amount of alcohol is evenly sprayed on the surface of the coil to soften the film on the surface of the coil, and then the upper press plate 1 of the press die is installed on the lower press plate 2 of the press die through the card slot. The position between the upper press plate 1 of the press die and the lower press plate 2 of the press die is determined by the card slot, and there is a certain gap between the two to ensure that the thickness of the sheet coil meets the requirements. After closing the mold, keep it at 180℃ for 3 minutes, then take out the press die, and after cooling to room temperature, demould the solidified sheet coil from the lower press plate 2 of the press die to complete the forming of the sheet coil.

[0042] The pressed sheet coil is placed on the belt of the coiling machine 7 perpendicularly to the core shaft of the coiling machine 7, and the sheet coil is rolled by the coiling machine 7, so that the concentric cup winding is initially formed.

[0043] After the coiling is completed, the initially formed concentric cup winding is fixed on the shaping core 6, and the shaping die upper die 4 and the shaping die lower die 5 are installed on the semi-automatic shaping machine. A proper amount of alcohol is evenly sprayed on the coil again, and the semi-automatic shaping machine is started to perform multiple rolling shaping at 150°C to ensure the roundness of the cup winding, so that the concentric cup winding can fully meet the required inner and outer circles and length dimensions. In addition, the initially formed cup winding is once again solidified, and the final concentric cup winding molding process is completed.

[0044] After multiple production verifications, the utility model has been successfully applied to the process of concentric cup winding molding of various types of hollow cup motors, which has greatly improved the qualification rate and production efficiency of the concentric cup winding molding of such hollow cup motors, and has wide promotion potential for similar motor cup winding molding processes.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to 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 concentric cup winding forming device, characterized in that: It comprises a tablet pressing die, a rolling machine (7) and a shaping die which are arranged in sequence; The tablet pressing die comprises an upper pressing plate (1) and a lower pressing plate (2), wherein the upper pressing plate (1) is embedded in the lower pressing plate (2), a plurality of limiting grooves are provided on the lower pressing plate (2), a plurality of positioning pins (3) are provided on the lower pressing plate (2), and the positioning pins (3) cooperate with the limiting grooves; The shaping die comprises a shaping die upper die (4) and a shaping die lower die (5), and a shaping mandrel (6) is installed between the shaping die upper die (4) and the shaping die lower die (5).

2. The concentric cup winding forming device according to claim 1, characterized in that: The plurality of limit grooves are all arranged on one side of the lower pressing plate (2) of the tablet pressing die.

3. The concentric cup winding forming device according to claim 1, characterized in that: The cross section of the upper press plate (1) of the tablet pressing die is a convex shape, and the cross section of the lower press plate (2) of the tablet pressing die is a concave shape.

4. The concentric cup winding forming device according to claim 3, characterized in that: The protruding portion of the upper press plate (1) of the tablet pressing die is embedded in the groove of the lower press plate (2) of the tablet pressing die.

5. The concentric cup winding forming device according to claim 1, characterized in that: The positioning pins (3) and the limiting grooves are evenly arranged along the length direction on the lower pressing plate (2) of the tablet pressing mold.

6. The concentric cup winding forming device according to claim 1, characterized in that: There is a certain gap between the upper press plate (1) of the tablet pressing die and the lower press plate (2) of the tablet pressing die.

7. The concentric cup winding forming device according to claim 1, characterized in that: An upper molding cavity is formed on the upper molding die (4) of the shaping die, and a lower molding cavity is formed on the lower molding die (5) of the shaping die.

8. The concentric cup winding forming device according to claim 7, characterized in that: The shaping die upper die (4) and the shaping die lower die (5) are installed via a clamping groove, and the upper molding cavity and the lower molding cavity form an inner hole.

9. The concentric cup winding forming device according to claim 1, characterized in that: The shaping mandrel (6) is a cylindrical structure.

10. The concentric cup winding forming device according to claim 1, characterized in that: The shaping mandrel (6) is coaxially mounted with the inner hole.

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