Rivet pressing device

Abstract

The utility model relates to the technical field of rivet pressing equipment, in particular to a rivet pressing device which comprises a die base, a rivet pressing base arranged on the die base, a lower pressing supporting column arranged on the die base and an upper pressing supporting column movably arranged on the rivet pressing base. An elastic reset assembly is connected between the upper pressing supporting column and the rivet pressing base, the upper pressing supporting column penetrates through the rivet pressing base in an up-down sliding mode, the upper pressing supporting column and the lower pressing supporting column are arranged in an opposite mode, and a plurality of lower pressing teeth are arranged on the upper end face of the lower pressing supporting column in a row at equal intervals. A plurality of upper pressing teeth are arranged on the lower end face of the upper pressing supporting column in a row at equal intervals. Sleeves and wires are riveted on the upper end face of the lower pressing supporting column and the lower end face of the upper pressing supporting column at the same time, the surfaces of the sleeves and the surfaces of the wires are evenly stressed, and pressure distribution is more even through the design of the pressing teeth. In addition, welding is not needed, and pollution cannot be generated; the embodiment of the utility model is quick in operation and simple in operation, and improves the production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and in particular to a riveting device. Background Art

[0002] In the field of press riveting technology, traditional press riveting processes mainly rely on two methods: flat plate extrusion and welding. However, both of these methods have certain limitations in practical applications.

[0003] Flatbed extrusion involves pressing metal onto a flat plate to join metal parts. However, during the extrusion process, metal flow is often uneven, resulting in inconsistent surfaces after riveting, affecting the product's aesthetics and quality. Furthermore, the uneven metal flow can lead to stress cracking, resulting in poor fatigue strength and making it difficult to meet long-term usage requirements.

[0004] On the other hand, while welding can solve the problem of joining metal parts to some extent, it also has many shortcomings. First, the localized high temperatures during welding can cause residual stress and deformation in the weldment, which not only affects the dimensional accuracy of the weldment but may also adversely affect its structural integrity. Second, welding generates arc light, fumes, and harmful gases, posing a threat to the health of operators and potentially causing environmental pollution. Furthermore, welding is not ideal for joining sleeves and wires, failing to achieve the expected connection strength and stability. Utility Model Content

[0005] This utility model addresses the problems in the prior art by providing a riveting device with a novel structure. It simultaneously rivets the sleeve and wire on the upper end face of the lower pressure support and the lower end face of the upper pressure support, ensuring uniform force distribution on the surfaces of the sleeve and wire. The design of the pressure teeth makes the pressure distribution more uniform. Furthermore, this embodiment requires no welding and will not generate pollution. This embodiment is fast to operate, simple to use, and improves production efficiency.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model provides a riveting device, which includes a mold base, a riveting base mounted on the mold base, a lower pressing support mounted on the mold base, and an upper pressing support movably mounted on the riveting base. An elastic reset component is connected between the upper pressing support and the riveting base. The upper pressing support slides up and down through the riveting base. The upper pressing support and the lower pressing support are arranged opposite each other. A row of equal-spaced lower pressing teeth is arranged on the upper end face of the lower pressing support, and a row of equal-spaced upper pressing teeth is arranged on the lower end face of the upper pressing support.

[0008] The press-fit base is provided with a guide groove, which is vertically arranged, and the upper press-fit support is slidably inserted into the guide groove.

[0009] The elastic reset assembly includes a spring and a limiting block. The limiting block is installed on the upper end of the upper pressure column and sleeved on the outer periphery of the upper end of the upper pressure column. The spring is movably sleeved on the outer periphery of the upper pressure column. The upper end of the spring is connected to the limiting block, and the lower end of the spring is connected to the upper end of the press-fit base.

[0010] Preferably, the upper pressure teeth are arranged in an isosceles trapezoidal shape.

[0011] Preferably, the outer edges of the upper end face of the upper pressure tooth are rounded.

[0012] Preferably, the downward pressing teeth are arranged in an isosceles trapezoidal shape.

[0013] Preferably, the outer edges of the upper end face of the lower pressure tooth are rounded.

[0014] The beneficial effects of this utility model are:

[0015] In operation, the sleeve is inserted around the outer circumference of the wire, and then the wire with the sleeve inserted is placed on the upper end face of the lower pressure support. The upper pressure support is then pressed down, and the sleeve and wire are simultaneously riveted on the upper and lower end faces of the lower and upper pressure supports. Upper and lower pressure teeth are used to further rivet the sleeve and wire. The pressure tooth structure of the sleeve increases the friction or mechanical locking force between it and the component, making it less prone to loosening during assembly and use, improving connection strength, and thus enhancing pull-out force. Furthermore, the elastic reset component facilitates the reset of the upper pressure support, thus facilitating the next riveting process. This invention features a novel structure, simultaneously riveting the sleeve and wire on the upper and lower end faces of the lower and upper pressure supports, ensuring uniform force distribution on the surfaces of the sleeve and wire. The pressure tooth design further enhances pressure distribution. Moreover, this embodiment requires no welding, thus preventing pollution. This embodiment is fast, simple to operate, and improves production efficiency. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a riveting device according to the present invention.

[0017] Figure 2 This is a schematic diagram of the riveting device according to this utility model from another perspective.

[0018] Figure 3 for Figure 1 Enlarged view of point A in the image.

[0019] exist Figures 1 to 3 The reference numerals in the figures include:

[0020] 1. Mold base; 2. Press-fit base; 3. Lower press-fit support; 4. Upper press-fit support; 5. Guide slot; 6. Lower press-fit tooth; 7. Upper press-fit tooth; 8. Spring; 9. Limit block. DETAILED DESCRIPTION

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. It is understood that the accompanying drawings are provided for reference and illustration only and are not intended to limit the present utility model. The connection relationships shown in the drawings are only for clear description and do not limit the connection method.

[0022] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be noted that, unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; or as a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0023] It should also be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] A riveting device, such as Figures 1 to 3As shown, it includes a mold base 1, a riveting base 2 mounted on the mold base 1, a lower pressure support 3 mounted on the mold base 1, and an upper pressure support 4 movably mounted on the riveting base 2. An elastic reset component is connected between the upper pressure support 4 and the riveting base 2. The upper pressure support 4 slides up and down through the riveting base 2. The upper pressure support 4 and the lower pressure support 3 are arranged opposite each other. A row of equal-spaced lower pressure teeth 6 is arranged on the upper end face of the lower pressure support 3, and a row of equal-spaced upper pressure teeth 7 is arranged on the lower end face of the upper pressure support 4. Specifically, in operation, the sleeve is inserted into the outer circumference of the wire, and then the wire with the sleeve inserted is placed on the upper end face of the lower pressure support 3. Then, the upper pressure support 4 is pressed down, and the sleeve and wire are riveted simultaneously on the upper end face of the lower pressure support 3 and the lower end face of the upper pressure support 4. The upper pressure teeth 7 and the lower pressure teeth 6 are used to rivet the sleeve and wire. The pressure tooth structure of the sleeve can increase the friction or mechanical locking force between it and the component, making it less prone to loosening during assembly and use, improving the connection strength, and thus enhancing the pull-out force. In addition, under the action of the elastic reset component, it is convenient to reset the upper pressure support 4, which facilitates the next riveting process. The structure of this utility model is novel. The sleeve and wire are riveted simultaneously on the upper end face of the lower pressure support 3 and the lower end face of the upper pressure support 4. The surface of the sleeve and wire is evenly stressed, and the design of the pressure teeth makes the pressure distribution more uniform. Moreover, the embodiment of this application does not require welding and will not produce pollution. The embodiment of this application is fast, simple to operate, and improves production efficiency.

[0025] In this embodiment, the upper pressing tooth 7 is arranged in an isosceles trapezoidal shape; the outer edges of the upper end face of the upper pressing tooth 7 are rounded; the lower pressing tooth 6 is arranged in an isosceles trapezoidal shape; the outer edges of the upper end face of the lower pressing tooth 6 are rounded. Specifically, with the above arrangement, sharp edges are avoided from damaging the sleeve structure during riveting, thus improving structural reliability.

[0026] In this embodiment, the press-fit base 2 is provided with a guide groove 5, which is vertically arranged, and the upper press-fit support 4 is slidably inserted into the guide groove 5. Specifically, under the action of the guide groove, the upper press-fit support 4 can play a guiding role, which facilitates the precise up and down movement of the upper press-fit support 4 and improves the reliability and stability during processing.

[0027] In this embodiment, the inner wall of the guide groove 5 is rotatably provided with multiple balls, which slide against the upper pressure support 4 to improve the smoothness of the upper pressure support 4 sliding.

[0028] In this embodiment, the elastic reset assembly includes a spring 8 and a limiting block 9. The limiting block 9 is installed on the upper end of the upper pressing column 4 and sleeved on the outer periphery of the upper end of the upper pressing column 4. The spring 8 is movably sleeved on the outer periphery of the upper pressing column 4. The upper end of the spring 8 is connected to the limiting block 9, and the lower end of the spring 8 is connected to the upper end of the riveting base 2. Specifically, under the above configuration, the limiting block 9 can limit the position of the spring 8 to prevent the spring 8 from loosening. The spring 8, which is provided between the limiting block 9 and the riveting base, is compressed when the upper pressing column 4 is pressed down. When the upper pressing column 4 is released, the spring 8 pushes the limiting block 9 under the elastic restoring force, thereby pushing the upper pressing column 4 upward, realizing the rapid reset of the upper pressing column 4 and facilitating its use in the next riveting operation.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A riveting device, characterized in that: The device includes a mold base, a riveting base mounted on the mold base, a lower pressure support mounted on the mold base, and an upper pressure support movably mounted on the riveting base. An elastic reset component is connected between the upper pressure support and the riveting base. The upper pressure support slides up and down through the riveting base. The upper pressure support and the lower pressure support are directly opposite each other. The upper end face of the lower pressure support has a row of equally spaced lower pressure teeth, and the lower end face of the upper pressure support has a row of equally spaced upper pressure teeth.

2. The riveting device according to claim 1, characterized in that: The press-fit base is provided with a guide groove, which is vertically arranged, and the upper press-fit support is slidably inserted into the guide groove.

3. The riveting device according to claim 1, characterized in that: The elastic reset assembly includes a spring and a limiting block. The limiting block is installed on the upper end of the upper pressure column and sleeved on the outer periphery of the upper end of the upper pressure column. The spring is movably sleeved on the outer periphery of the upper pressure column. The upper end of the spring is connected to the limiting block, and the lower end of the spring is connected to the upper end of the press-fit base.

4. The riveting device according to claim 1, characterized in that: The upper pressure teeth are arranged in an isosceles trapezoidal shape.

5. A riveting device according to claim 1, characterized in that: The outer edges of the upper end face of the upper pressure tooth are rounded.

6. A riveting device according to claim 1, characterized in that: The downward pressing teeth are arranged in an isosceles trapezoidal shape.

7. A riveting device according to claim 1, characterized in that: The outer edges of the upper end face of the lower pressure tooth are rounded.

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