Forming die suitable for concentric reducer type spring for electric tail gate

Abstract

The utility model discloses a forming die suitable for a reducer type spring for an electric tail gate, and relates to the field of springs, the forming die comprises a main pipe body, the diameter of the main pipe body is the same as the inner diameter of a second part, the main pipe body is slidably connected with a second pipe body, and the diameter of the second pipe body is the same as the inner diameter of a first part; mounting holes are formed in the main pipe body and the second pipe body, and the inner diameter of the mounting holes is the same as the diameter of the limiting part. The spring positioning device has the effect of facilitating spring positioning.

Description

Technical Field

[0001] The present application relates to the field of springs, and in particular to a large-small-head spring forming die for an electric tailgate. Background Art

[0002] Car electric tailgate (electric trunk): refers to the trunk that is opened or closed by electric or remote control. Just press the button in the car or the remote control key. The basic structure of the electric tailgate is composed of two left and right spindle drive rods. The tailgate spring in the spindle drive rod plays an important role in supporting the opening and closing force of the tailgate.

[0003] The springs used in electric tailgates are usually straight-tube type, which are not suitable for electric tailgates with certain special structural designs. At the same time, it is difficult to position the springs during installation. Utility Model Content

[0004] In order to facilitate the positioning of the spring, the present application provides a large and small head spring forming mold for an electric tailgate.

[0005] First,

[0006] The present application provides a large and small head spring for an electric tailgate using the following technical solution:

[0007] A large-small-head spring for an electric tailgate, a main spring body, the main spring body comprising a first part and a second part, the diameter of the first part being greater than the diameter of the second part.

[0008] By adopting the above technical solution, the main spring body is divided into a first part and a second part, and the first part and the second part have different diameters, which is convenient for adapting to the installation requirements of different electric tailgates.

[0009] Optionally, a limiting portion is fixed to an end of the first portion facing away from the second portion.

[0010] By adopting the above technical solution, the diameter of the limiting portion is smaller than the diameter of the second part of the main spring body, which facilitates the positioning of the main spring body during the installation process and does not affect the use of the main spring body.

[0011] Optionally, a flocking layer is fixed on the surface of the main spring body.

[0012] By adopting the above technical solution and arranging a flocking layer on the surface of the main spring body, the noise generated by friction during the movement of the spring is reduced.

[0013] Optionally, the main spring body is made of steel and its surface is electrophoretically treated.

[0014] By adopting the above technical solution, the electrophoresis treatment enhances the strength of the main spring body and at the same time enhances the service life of the main spring body.

[0015] Second,

[0016] The present application also provides a molding die suitable for the large and small head spring for the above-mentioned electric tailgate, comprising a main pipe body, the diameter of the main pipe body is the same as the inner diameter of the second part, the main pipe body is slidably connected to a second pipe body, the diameter of the second pipe body is the same as the inner diameter of the first part.

[0017] By adopting the above technical solution, the main spring body can be shaped and compressed on the main tube body and the second tube body, so as to ensure the shape of the main spring body. At the same time, the diameter of the main tube body is the same as the inner diameter of the second part; the diameter of the second tube body is the same as the inner diameter of the first part, which reduces the possibility of position displacement of the main spring body during the compression process.

[0018] Optionally, both the main tube body and the second tube body are provided with mounting holes, and the inner diameter of the mounting holes is the same as the diameter of the limiting portion.

[0019] By adopting the above technical solution, the limiting part is penetrated in the installation hole, thereby not affecting the installation process of the main spring body.

[0020] Optionally, the end of the main pipe body is detachably connected to an obstruction portion, the obstruction portion is externally slidably connected to an obstruction tube, and the diameter of the obstruction tube is the same as the diameter of the first portion.

[0021] By adopting the above technical solution, during the compression process, the barrier tube restricts the first part, making it easier to compress the first part.

[0022] Optionally, a positioning portion is fixed to the end of the second tube body.

[0023] By adopting the above technical solution, during the compression process, the positioning portion restricts the first part, thereby facilitating the compression of the first part.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The main spring body includes a first part and a second part with different diameters, which is convenient for adapting to the installation requirements of the electric tailgate. At the same time, a limiting part is fixed at the end of the main spring body, and the diameter of the limiting part is smaller than the diameter of the end of the main spring body with a smaller diameter, which is convenient for locating the main spring body during the installation process and will not affect the use of the main spring body;

[0026] 2. The main spring body can be shaped on the main pipe body to ensure the shape of the main spring body. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of a spring according to an embodiment of the present application.

[0028] Figure 2 This is a schematic diagram of the flocking layer position.

[0029] Figure 3 It is a schematic diagram of the mold of the embodiment of the present application.

[0030] Description of reference numerals:

[0031] 1. Main spring body; 2. First part; 3. Second part; 4. Limiting part; 5. Flocking layer; 6. Main pipe body; 7. Second pipe body; 8. Mounting hole; 9. Obstruction part; 10. Obstruction pipe; 11. Positioning part. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-3 This application is described in further detail.

[0033] First,

[0034] The present application discloses a large and small head spring for an electric tailgate. Figure 1 and Figure 2 The electric tailgate large and small head spring includes a main spring body 1, which includes a first part 2 and a second part 3. The first part 2 and the second part 3 have different diameters, the diameter of the first part 2 is larger than the diameter of the second part 3, and there is a smooth transition between the first part 2 and the second part 3; the end of the first part 2 away from the second part 3 is fixed with a limiting part 4 by an integral molding method, the limiting part 4 and the first part 2 are smoothly transitioned, and the diameter of the limiting part 4 is smaller than the diameter of the second part 3. In this embodiment, the inner diameter of the first part 2 is 29.8mm; the inner diameter of the second part 3 is 27.8mm; the inner diameter of the limiting part 4 is 18mm; at the same time, in this embodiment, the main spring body 1 is made of steel, and the surface of the main spring body 1 is electrophoretically treated. After the surface of the main spring body 1 is electrophoretically treated, a flocking layer 5 is arranged on the surface of the main spring body 1 to facilitate the working process of the main spring body 1.

[0035] Second,

[0036] The present application also discloses a molding die suitable for the large and small head spring for the electric tailgate. Figure 3The molding die includes a main body 6, the outer diameter of the main body 6 is the same as the inner diameter of the second part 3, so that the second part 3 is conveniently sleeved on the side wall of the main body 6, and the end of the main body 6 is slidably connected with the second body 7, the main body 6 is inserted into the second body 7, the outer diameter of the second body 7 is the same as the inner diameter of the first part 2, and the first part 2 of the main spring body 1 can be sleeved on the outside of the second body 7; at the same time, since the connection between the main body 6 and the second body 7 is in a step shape, during the compression process, the first part 2 on the main spring body 1 can be abutted by the connection between the main body 6 and the second body 7, which is convenient for the processing process.

[0037] Reference Figure 3 A mounting hole 8 is provided on both the main tube body 6 and the second tube body 7. The axial direction of the mounting hole 8 is the same as the axial direction of the main tube body 6, and the mounting hole 8 penetrates both the main tube body 6 and the second tube body 7 at the same time. The diameter of the inner wall of the mounting hole 8 is the same as the diameter of the limiting portion 4. During the installation process, the limiting portion 4 is penetrated in the mounting hole 8 and will not interfere with the remaining parts. At the same time, a mounting groove is provided on the side wall of the mounting hole 8. The mounting groove is connected to the outside of the main tube body 6. The mounting groove is used to penetrate the main spring body 1, thereby facilitating the penetration of the limiting portion 4 into the mounting hole 8.

[0038] Reference Figure 3 The end of the main tube body 6 away from the second tube body 7 is detachably connected with an obstruction part 9, which is disc-shaped and the detachable connection method here is a threaded connection, that is, the obstruction part 9 is threadedly connected to the inner wall of the main tube body 6, the obstruction part 9 is coaxially arranged with the main tube body 6 and the diameter of the obstruction part 9 is larger than the diameter of the main tube body 6, and the obstruction part 9 is used to abut against the second part 3, so as to limit the second part 3. During the compression process, the end of the second tube body 7 abuts against the two ends of the second part 3 with the obstruction part 9, and compresses the second part 3; the outer wall of the obstruction part 9 is slidably connected with a second tube, and the obstruction tube 10 is coaxially arranged with the obstruction part 9, and the diameter of the obstruction tube 10 is the same as the diameter of the first sub-section. The end of the second tube body 7 facing away from the main tube body 6 is fixed with a positioning portion 11 in an integrally formed manner. The positioning portion 11 is disc-shaped, and the positioning portion 11 and the second tube body 7 are coaxially arranged. The diameter of the positioning portion 11 is larger than the diameter of the second tube body 7, which is convenient for abutting the first part 2 of the spring body; an obstruction spring is provided at the end of the obstruction portion 9, one end of the obstruction spring is fixed to the end of the obstruction portion 9, and the other end is fixed to the inner wall of the obstruction tube 10. The obstruction spring is used to pull the obstruction tube 10 to move toward the positioning portion 11. During the compression process, since the obstruction tube 10 and the second tube body 7 can both slide, the first part 2 and the second part 3 of the main spring body 1 can be compressed at the same time.

[0039] The implementation principle of the large and small head spring forming mold for an electric tailgate in the embodiment of the present application is as follows: during use, the main spring body 1 is firstly put on the mold, and the obstruction part 9 is connected, and then the mold is installed on the machine body. The machine body is started to compress the main spring body 1 to facilitate the processing process.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A molding die for a large-small-head spring for an electric tailgate, comprising a main spring body (1), wherein the main spring body (1) comprises a first portion (2) and a second portion (3), wherein the diameter of the first portion (2) is greater than the diameter of the second portion (3), and a limiting portion (4) is fixed to the end of the first portion (2) away from the second portion (3), characterized in that: It comprises a main pipe (6), the diameter of which is the same as the inner diameter of the second part (3), and the main pipe (6) is slidably connected to a second pipe (7), the diameter of which is the same as the inner diameter of the first part (2).

2. The molding die according to claim 1, characterized in that: The main tube (6) and the second tube (7) are both provided with a mounting hole (8), and the inner diameter of the mounting hole (8) is the same as the diameter of the limiting portion (4).

3. The molding die according to claim 2, characterized in that: The end of the main pipe (6) is detachably connected to an obstruction portion (9), and the obstruction portion (9) is externally slidably connected to an obstruction tube (10), wherein the diameter of the obstruction tube (10) is the same as that of the first portion (2).

4. The molding die according to claim 2, characterized in that: A positioning portion (11) is fixed to the end of the second tube body (7).

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