A coil forming tool

Abstract

The utility model discloses a coil forming frock includes: lower base, the lower base has first forming part and second forming part, the first forming part is arc structure, and the second forming part is horizontal structure, upper pressure seat, the upper pressure seat has first lower pressure part and second lower pressure part, the first lower pressure part with first forming part position corresponds and shape adaptation, and second lower pressure part with second forming part position corresponds and shape adaptation, and the upper pressure seat is configured as can move towards lower base direction, heating piece, heating piece sets up in lower base, to heat lower base, the utility model can solve the problem that traditional saddle coil exists and is pressed into shape difficultly, and the problem of low pressing forming efficiency.

Description

Technical Field

[0001] This utility model relates to the field of coil processing, specifically to a saddle coil forming tooling. Background Technology

[0002] Coil forming is a key process in the manufacturing of electrical equipment such as motors and transformers, especially for irregularly shaped coils (such as saddle-shaped coils) where the precision and consistency requirements are extremely high. Traditional saddle coils are irregularly shaped, making it difficult to use ordinary coil forming workpieces during the forming process, resulting in problems such as difficulty in pressing and low pressing efficiency. Utility Model Content

[0003] To overcome the above-mentioned shortcomings, the purpose of this utility model is to provide a coil forming tool.

[0004] To achieve the above objectives, the technical solution adopted by this utility model includes: a lower base, the lower base having a first forming part and a second forming part, the first forming part having an arc-shaped structure and the second forming part having a horizontal structure; an upper pressure seat, the upper pressure seat having a first pressing part and a second pressing part, the first pressing part corresponding to the first forming part in position and matching in shape, the second pressing part corresponding to the second forming part in position and matching in shape, the upper pressure seat being configured to move toward the lower base; and a heating element, the heating element being disposed inside the lower base for heating the lower base.

[0005] In the preferred embodiment of the above-mentioned coil forming tooling, an electric heating device is also included, which is electrically connected to the coil to heat the coil being pressed.

[0006] In the preferred embodiment of the above-mentioned coil forming fixture, a lifting assembly is provided on the side of the lower base. The lifting assembly is connected to the upper pressure seat to control the lifting of the upper pressure seat, so that the first pressing part enters the first forming part and the second pressing part enters the second forming part.

[0007] In the preferred embodiment of the above-mentioned coil forming fixture, the lifting component is a drive cylinder disposed on the side of the lower base, and the extended shaft end of the drive cylinder is connected to the upper pressure seat.

[0008] In the preferred embodiment of the above-mentioned coil forming fixture, the lifting assembly consists of a servo motor disposed on the side of the lower base and a lead screw disposed at the rotating shaft end of the servo motor, the lead screw being threadedly connected to the upper pressure seat.

[0009] In the preferred embodiment of the above-mentioned coil forming fixture, a light rod is installed on the top of the lower base, and the light rod passes vertically through the upper pressure seat.

[0010] In the preferred embodiment of the above-mentioned coil forming fixture, a stripping component is also included, which is disposed on the lower base. After the coil is pressed and heated to form, the stripping component can push the formed coil at least partially onto the top of the lower base.

[0011] In the preferred embodiment of the above-mentioned coil forming fixture, the stripping assembly includes a through hole that vertically penetrates the first forming part, a lifting member disposed in the through hole, and a drive device for controlling the lifting member to rise and fall.

[0012] In the preferred embodiment of the above-mentioned coil forming fixture, the upper pressure seat and the lower base are coated with polytetrafluoroethylene coating.

[0013] In the preferred embodiment of the above-mentioned coil forming tooling, the lower base is provided with a temperature sensor for detecting the coil temperature.

[0014] The beneficial effect of this utility model is that by setting the first and second forming parts of the lower base into a saddle shape, and setting the first and second pressing parts of the upper pressing seat into shapes that are compatible with the first and second forming parts, the first and second pressing parts can press the frame coil into the lower base, thereby achieving rapid forming of the saddle coil and reducing the difficulty of forming the saddle coil. Attached Figure Description

[0015] Figure 1 This is the main view of the present utility model. Figure 1 ; Figure 2 This is the main view of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the lower base; Figure 4 This is a top view of the lower base; Figure 5 This is a schematic diagram of the coil before it is formed. In the figure: lower base 1, first forming part 11, second forming part 12, upper pressure seat 2, first pressing part 21, second pressing part 22, heating element 3, coil 4, lifting assembly 5, light rod 6, lifting element 7, temperature sensor 8. Detailed Implementation

[0016] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] like Figures 1 to 5 As shown, the coil forming fixture of this utility model includes: a lower base 1, which has a first forming part 11 and a second forming part 12. The first forming part 11 has an arc-shaped structure, and the second forming part 12 has a horizontal structure; an upper pressure seat 2, which has a first pressing part 21 and a second pressing part 22. The first pressing part 21 corresponds to the first forming part 11 in position and is adapted in shape, and the second pressing part 22 corresponds to the second forming part 12 in position and is adapted in shape. The upper pressure seat 2 is configured to move toward the lower base 1; and a heating element 3, which is disposed inside the lower base 1 for heating the lower base 1.

[0020] See Figures 1 to 4 The lower base 1 has a molding cavity, and a molding insert is installed inside the molding cavity. The molding insert and the molding cavity form two sets of first molding portions 11 and two sets of second molding portions 12. The cross-sections of the two sets of first molding portions 11 are approximately U-shaped, and the two sets of second molding portions 12 are approximately straight. The two sets of first molding portions 11 and second molding portions 12 form a saddle shape, thus making the first molding portions 11 and second molding portions 12 the mold cavity for forming the coil 4. The upper pressure seat 2 has two sets of first lower pressure portions 21 and two sets of second lower pressure portions 22. The pressing part 22 has a first pressing part 21 that is adapted to the first forming part 11 and a second pressing part 22 that is adapted to the second forming part 12. The upper pressing seat 2 is configured to be able to move up and down in the vertical direction, so that the first pressing part 21 enters the first forming part 11 and the second pressing part 22 enters the second forming part 12, thereby pressing the coil 4 into the lower base 1. The heating element 3 can be a heating tube or a heating wire. The heating element 3 is arranged in the lower base 1 to heat the lower base 1, thereby heating the formed coil 4.

[0021] Specifically, when pressing the coil 4 into shape, firstly, the frame-shaped coil 4 is placed on top of the lower base, so that the four sides of the coil 4 correspond to the two sets of first forming parts 11 and the two sets of second forming parts 12 respectively. Then, the upper pressing seat 2 is controlled to move downward, and the first pressing part 21 and the second pressing part 22 press the frame-shaped coil 4 into the first forming part 11 and the second forming part 12 of the lower base 1, so that the coil 4 is initially formed into a saddle shape. At the same time, the heating element 3 is used to heat the lower base 1, thereby heating the coil 4. After cooling and shaping, the coil 4 can be removed from the lower base 1. This application sets the first forming part 11 and the second forming part 12 of the lower base 1 into a saddle shape, and sets the first pressing part 21 and the second pressing part 22 of the upper pressing seat 2 into shapes that are compatible with the first forming part 11 and the second forming part 12, so that the first pressing part 21 and the second pressing part 22 can press the frame coil 4 into the lower base 1, thereby achieving rapid forming of the saddle coil 4 and reducing the difficulty of forming the saddle coil 4.

[0022] In one or more embodiments, an electrically heated device is also included, which is electrically connected to the coil 4 to heat the coil 4 being pressed into shape. After the upper pressing seat 2 presses the coil 4 down to a predetermined position, the electrically heated device heats the coil 4 to 100°C. Then, the heated coil 4 is completely pressed into the first forming part 11 and the second forming part 12 of the lower base 1 by the upper pressing seat 2. After the coil 4 is heated to 130°C by the electrically heated device, it is allowed to cool naturally, thus achieving the forming of the coil 4. The method of heating the formed coil 4 by the electrically heated device can increase the plasticity and heat core of the coil 4, making the coil 4 easier to form.

[0023] In one or more embodiments, a lifting assembly 5 is disposed on the side of the lower base 1. The lifting assembly 5 is connected to the upper pressing seat 2 to control the lifting and lowering of the upper pressing seat 2, so that the first pressing part 21 enters into the first forming part 11 and the second pressing part 22 enters into the second forming part 12. The lifting assembly 5 is used to control the vertical lifting and lowering of the upper pressing seat 2, so that the first pressing part 21 enters or exits into the first forming part 11 and the second pressing part 22 enters or exits into the second forming part 12, which has the characteristics of high automation and high coil 4 forming efficiency.

[0024] In the first embodiment of the lifting assembly 5, the lifting assembly 5 is a drive cylinder disposed on the side of the lower base 1, and the extended shaft end of the drive cylinder is connected to the upper pressure seat 2.

[0025] See Figures 1 to 4 The extended shaft end of the drive cylinder is connected to the side of the upper pressure seat 2. By controlling the upper pressure seat 2 to rise and fall through the drive cylinder, the upper pressure seat 2 can be pressed and formed onto the coil 4.

[0026] In the second embodiment of the lifting assembly 5, the lifting assembly 5 is a servo motor disposed on the side of the lower base 1 and a lead screw disposed at the end of the rotating shaft of the servo motor, and the lead screw is threadedly connected to the upper pressure seat 2.

[0027] See Figures 1 to 4 The upper pressure seat 2, which is threadedly connected to the lead screw, can be raised and lowered vertically by a servo motor. This design features a simple structure and convenient operation. In addition, this design avoids the problem of the upper pressure seat 2 pressing the coil 4 too tightly inside the lower base 1, thus improving the forming quality of the coil 4.

[0028] In one or more embodiments, a guide rod 6 is mounted on the top of the lower base 1, and the guide rod 6 passes vertically through the upper pressure seat 2. This arrangement ensures that the upper pressure seat 2 always moves in the vertical direction, improving the moving accuracy of the upper pressure seat 2 and improving the forming quality of the saddle coil 4 in this application.

[0029] In one or more embodiments, a stripping assembly is also included, which is disposed on the lower base 1. After the coil 4 is pressed and heated to form, the stripping assembly can push the formed coil 4 at least partially to the top of the lower base 1. The stripping assembly includes a through hole that vertically penetrates the first forming part 11, a lifting member 7 disposed in the through hole, and a drive device for controlling the lifting member 7 to rise and fall.

[0030] See Figure 3 , Figure 4 The driving device can be a lifting cylinder. The top of the lifting member 7 is adapted to the curved surface of the first forming part 11. With this arrangement, the top of the lifting member 7 can fill the gap of the perforation, and will not protrude from the perforation, thus avoiding the problem of changing the forming shape of the coil 4, thereby improving the forming quality of the coil 4 in this application.

[0031] In one or more embodiments, the upper pressure seat 2 and the lower base 1 are coated with a polytetrafluoroethylene (PTFE) coating. It should be noted that the PTFE coating has a certain self-lubricating and anti-corrosion effect, which can reduce the problem of rust forming on the surfaces of the upper pressure seat 2 and the lower base 1 and contaminating the coil 4.

[0032] In one or more embodiments, the lower base 1 is provided with a temperature sensor 8 for detecting the temperature of the coil 4. The temperature sensor 8 is used to detect the temperature of the coil 4 to avoid the problem of reduced coil 4 molding quality due to excessively high or low coil 4 temperature.

[0033] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A coil forming tooling, characterized in that, include: The lower base has a first forming part and a second forming part, the first forming part has an arc-shaped structure, and the second forming part has a horizontal structure. The upper pressure seat has a first pressing part and a second pressing part. The first pressing part corresponds to the position of the first forming part and is adapted in shape. The second pressing part corresponds to the position of the second forming part and is adapted in shape. The upper pressure seat is configured to move toward the lower base. A heating element is disposed inside the lower base and is used to heat the lower base.

2. The coil forming fixture according to claim 1, characterized in that: It also includes an electrically heated device that can be electrically connected to a coil to heat the pressed coil.

3. The coil forming fixture according to claim 1, characterized in that: The lower base is provided with a lifting assembly on its side. The lifting assembly is connected to the upper pressure seat to control the lifting of the upper pressure seat, so that the first pressing part enters the first forming part and the second pressing part enters the second forming part.

4. The coil forming fixture according to claim 3, characterized in that: The lifting assembly is a drive cylinder located on the side of the lower base, and the extended shaft end of the drive cylinder is connected to the upper pressure seat.

5. The coil forming fixture according to claim 3, characterized in that: The lifting assembly consists of a servo motor located on the side of the lower base and a lead screw located at the end of the rotating shaft of the servo motor. The lead screw is threadedly connected to the upper pressure seat.

6. The coil forming fixture according to claim 5, characterized in that: A light rod is installed on the top of the lower base, and the light rod passes vertically through the upper pressure seat.

7. The coil forming fixture according to claim 1, characterized in that: It also includes a stripping assembly disposed on the lower base, which can push the formed coil at least partially onto the top of the lower base after the coil is pressed and heated to form.

8. The coil forming fixture according to claim 7, characterized in that: The unloading assembly includes a vertical through-hole penetrating the first forming part, a lifting member disposed within the through-hole, and a drive device for controlling the lifting member's raising and lowering.

9. The coil forming fixture according to claim 1, characterized in that: The upper pressure seat and the lower base are coated with polytetrafluoroethylene.

10. The coil forming fixture according to claim 1, characterized in that: The lower base is equipped with a temperature sensor for detecting the temperature of the coil.

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