Punching and riveting die

By introducing lifting deduplication plates, adjustable rivet bases, photoelectric sensors and visual inspection components into the punching and rivet mold, the problem that existing molds cannot adapt to the needs of variable riveting is solved, and the flexible adaptability and efficient production of the mold is achieved.

CN223160014UActive Publication Date: 2025-07-29常熟祥鑫汽配有限公司
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Patent Information

Application Number
CN202421853637.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-02
Publication Date
2025-07-29
Estimated Expiration
2034-08-02

AI Technical Summary

Technical Problem

The existing fixed rivet dies cannot meet the changing rivet demand, resulting in an increase in the number of molds, high production costs and low efficiency, and cannot meet the flexibility requirements of flexible production lines.

Method used

A punching riveting mold including a lifting stripping plate, an adjustable rivet base, a photoelectric sensor and a visual inspection component is designed to achieve flexible adaptability and precise control of the mold.

Benefits of technology

It realizes the use of molds for one mold, reduces the frequency of mold replacement, improves production efficiency and riveting accuracy, enhances production flexibility and stability, and ensures product quality.

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Abstract

The utility model discloses a punching and riveting die, which relates to the field of dies and comprises a lower die assembly and an upper die assembly relatively matched with the lower die assembly, comprising a lifting type stripper plate, an air cylinder installed in the lower die assembly and used for driving the lifting type stripper plate to ascend and descend, an installation sliding groove installed in the lower die assembly, and at least one rivet base capable of being fixed in the installation sliding groove in a position adjusting mode. At least one beating block is detachably installed on the upper die assembly, and during work, the beating blocks are matched with the rivet bases in an aligned mode. The punching and riveting die can flexibly meet the riveting requirements of different positions of the same product, the replacement frequency of the die is reduced, and therefore the effect that one die has multiple purposes is achieved.
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Description

Technical Field

[0001] This application relates to the field of molds, and particularly to a punching and riveting mold. Background Art

[0002] In the prior art, punching and riveting molds generally adopt a fixed structure, which means that each set of molds can only be used for the punching and riveting processing of a single product. Such molds perform well in specific applications and can accurately complete the predetermined riveting tasks. However, with the rapid development of the manufacturing industry and the widespread application of flexible production lines, the requirements for punching and riveting molds on the production line have become more complex and diverse.

[0003] In the actual production process, a flexible production line needs to perform punching and riveting operations at different positions on the same product. For example, some products may need to be riveted at positions A and B, while others may need to be riveted at positions C and D. Although the riveting holes at positions A, B, C, and D have been preset on the basic product blank entering the mold, since the existing fixed molds can only correspond to fixed riveting positions, they cannot meet the requirement of multi-position riveting within the same mold. This limitation forces production enterprises to customize different molds for each new product with different riveting requirements, resulting in a sharp increase in the number of molds and significantly increasing the production cost.

[0004] In addition, when the same product requires operations at multiple different riveting positions, such as riveting at positions A, B, and C, the current mold structure still cannot adapt to this multi-point riveting requirement. To solve this problem, enterprises have to frequently design and manufacture new molds, which not only increases the time cost and economic cost but also affects the production efficiency.

[0005] It can be seen that the existing fixed punching and riveting molds are unable to cope with the changing riveting requirements, seriously restricting the flexibility and economy of flexible production lines. In order to improve production efficiency, reduce manufacturing costs, and enhance the adaptability and versatility of molds, it is imperative to develop a new type of punching and riveting mold. Summary of the Utility Model

[0006] The purpose of this application is to at least overcome one deficiency existing in the prior art, and provide a punching and riveting mold that can flexibly meet the riveting requirements at different positions of the same product, reduce the mold replacement frequency, and thus achieve the effect of multiple uses of one mold.

[0007] To achieve the above object, the present application discloses a punching and riveting die, including a lower die assembly and an upper die assembly that cooperates with the lower die assembly relatively, wherein, the lower die assembly includes a lifting stripper plate, a cylinder installed in the lower die assembly for driving the lifting stripper plate to lift and lower, an installation chute installed in the lower die assembly, and at least one rivet base that can be adjusted in position and fixed in the installation chute; at least one punching block is detachably installed on the upper die assembly, and during operation, the punching block is in alignment and cooperation with the rivet base.

[0008] Further, the upper die assembly and the lower die assembly are in guiding cooperation through at least one guide rod.

[0009] Further, at least one spring rod for resetting is provided between the upper die assembly and the lower die assembly.

[0010] Further, a pressure plate installed through a spring is adjusted on the upper die assembly.

[0011] Further, a rivet installation position is recessed downward on the top surface of the rivet base, and a photoelectric sensor for detecting whether the rivet is installed in place is provided at the bottom of the rivet installation position. The data transmission cable of the photoelectric sensor is led out and connected to an external detection device.

[0012] Further, the punching block is in a convex shape and is detachably installed on the upper die assembly through bolts.

[0013] Further, a number of kidney-shaped holes are provided beside the installation chute, and the kidney-shaped holes are used for fixing the rivet base after its position adjustment in the installation chute.

[0014] Further, a vision detection component is adjustably installed in the installation chute. The vision detection component includes a camera for taking images and a light source for providing supplementary lighting. Among them, the image acquisition direction of the camera is upward; the transmission cable of the vision detection component is led out and connected to an external detection device.

[0015] Compared with the prior art, the present application has at least the following beneficial effects:

[0016] 1. Improve production flexibility and efficiency: The die design includes an adjustable and fixed rivet base and a lifting stripper plate, enabling it to adapt to riveting requirements at different positions, achieving multiple uses with one die, reducing the die replacement frequency, and thus significantly improving production efficiency.

[0017] 2. Enhance stability and accuracy: Through the guiding cooperation of the guide rod and the spring reset design between the upper die assembly and the lower die assembly, it ensures accurate positioning and efficient reset during the riveting process, improves the stability and accuracy of the riveting operation, and avoids product unqualified problems.

[0018] 3. Intelligent Detection and Control: The mold is equipped with photoelectric sensors and visual inspection components, which can monitor the rivet installation situation and riveting position in real time, provide timely feedback information, ensure the accurate installation of each rivet, and improve product quality and production reliability.

[0019] The beneficial effects listed above do not exhaust all advantages. Other potential beneficial effects and detailed technical implementation manners will be further disclosed in the embodiments or other description parts of this application. Brief Description of the Drawings

[0020] After reading the following specific implementation manners in conjunction with the drawings, various aspects of the present disclosure will be better understood. In the drawings, the positions, sizes, and ranges of the structures shown, etc., sometimes do not represent the actual positions, sizes, and ranges, etc. In the drawings:

[0021] Figure 1 is a schematic structural diagram of an embodiment disclosed in this application.

[0022] Figure 2 is a schematic structural diagram of the lower die assembly in an embodiment disclosed in this application. In the figure, the product to be riveted is installed on the lower die assembly.

[0023] Figure 3 is a schematic structural diagram of the lower die assembly in an embodiment disclosed in this application.

[0024] Figure 4 is a schematic structural diagram of the upper die assembly in an embodiment disclosed in this application. The pressure plate is shown in the figure. Detailed Description of the Invention

[0025] The present disclosure will be described below with reference to the drawings, in which several embodiments of the present disclosure are shown. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below. In fact, the embodiments described below are intended to make the disclosure of the present disclosure more complete and fully explain the protection scope of the present disclosure to those skilled in the art. It should also be understood that the embodiments disclosed herein can be combined in various ways to provide more additional embodiments.

[0026] It should be understood that in all the drawings, the same reference numerals represent the same elements. In the drawings, for clarity, the sizes of some features may be deformed.

[0027] It should be understood that the terms in the specification are only used to describe specific embodiments and are not intended to limit the present disclosure. All terms used in the specification (including technical terms and scientific terms) have the meanings commonly understood by those skilled in the art unless otherwise defined. For the sake of brevity and / or clarity, technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification.

[0028] The singular forms “a”, “the”, and “said” used in the specification include plural forms unless clearly specified. The terms “comprising”, “including”, and “containing” used in the specification indicate the presence of the claimed features, but do not exclude the presence of one or more other features. The term “and / or” used in the specification includes any and all combinations of one or more of the related listed items. Embodiment

[0029] As Figures 1-4 As shown, this embodiment describes a punching and riveting die, which includes a lower die assembly 1 and an upper die assembly 2 that cooperates with it relatively. The lower die assembly 1 mainly consists of a lifting stripper plate 4, a cylinder 3 installed in the lower die assembly 1 for driving the lifting of the lifting stripper plate 4, a mounting chute 5, and at least one rivet base 6 that can be adjusted and fixed in the mounting chute 5. At least one punching block 7 is detachably installed on the upper die assembly 2, and the punching block 7 is in alignment and cooperation with the rivet base 6 during operation. In addition, the die also includes a vision detection assembly 8.

[0030] In this embodiment, the lifting stripper plate 4 in the lower die assembly 1 is made of steel or aluminum alloy material, having sufficient strength and durability to withstand high-frequency riveting operations.

[0031] The cylinder 3 adopts a pneumatic system and drives the lifting action of the lifting stripper plate 4 through compressed air. The material of the cylinder 3 is selected as corrosion-resistant alloy steel to ensure its reliability during long-term operation.

[0032] The mounting chute 5 is also made of high-strength metal and is used to accommodate and position the rivet base 6. The rivet base 6 can be adjusted along the chute 5 to meet the riveting requirements of different products. The rivet base 6 is made of wear-resistant material, and its top surface is recessed downward with a rivet installation position, and is equipped with a photoelectric sensor (not shown in the figure) for detecting whether the rivet is installed in place. The data transmission cable of the photoelectric sensor is led out and connected to an external detection device (not shown in the figure).

[0033] More specifically, the upper die assembly 2 and the lower die assembly 1 are guided and fitted through at least one guide rod made of high-strength steel to ensure accurate alignment of the upper and lower die assemblies during the working process. The upper die assembly 2 is also provided with at least one spring rod for resetting, which is made of high-elasticity material to ensure that the die can be quickly reset after the riveting operation is completed. The punching block 7 on the upper die assembly 2 is in a convex shape and is detachably installed on the upper die assembly 2 through bolts, which is convenient for maintenance and replacement. A pressure plate installed by a spring is also installed in the upper die assembly 2, and the pressure plate can fix the workpiece during the working process to prevent it from moving or deviating.

[0034] In this embodiment, the vision detection component 8 is installed in the installation chute 5 and includes an image acquisition camera and a light source for providing supplementary lighting, which is used to monitor the riveting position in real time. The image acquisition direction of the camera faces upward, which can accurately capture the image of the riveting position. The light source provides sufficient lighting to ensure the image quality. The data transmission cable of the vision detection component 8 is led out and connected to an external detection device, and the external detection device analyzes and processes the acquired image. The technical solutions of these detection components are very mature and belong to well-known technologies, so no further description and explanation will be made.

[0035] During the specific operation process, the basic product stock plate enters the lower die assembly 1, and the rivet base 6 is adjusted to the required position along the installation chute 5 and fixed through the kidney-shaped hole beside the chute 5. When it is necessary to change the riveting position, the operator loosens the fixing bolt of the rivet base 6, moves the rivet base 6 along the chute 5 to the new riveting position, and fixes it again. The adjustment process is simple and fast, greatly reducing the production preparation time. The cylinder 3 drives the lifting stripping plate 4 to lift and lower, and fixes the stock plate in an appropriate position. The punching block 7 on the upper die assembly 2 is aligned with the rivet base 6 for riveting operation. The photoelectric sensor on the rivet base 6 monitors the rivet installation situation in real time to ensure that each rivet can be accurately installed in place. The vision detection component 8 in the installation chute 5, including an image acquisition camera and a light source, collects images of the riveting position and provides real-time feedback to further ensure the riveting accuracy.

[0036] Through the above structural design, the punching and riveting die realizes flexible riveting operations, can adapt to the riveting requirements of different positions, reduces the die replacement frequency, and improves the production efficiency. In addition, the application of the photoelectric sensor and the vision detection component 8 ensures the precise control and real-time monitoring of the riveting process, significantly improving the product quality.

[0037] For example, in an actual application scenario, when the production line needs to adjust the riveting position, the operator only needs to loosen the fixing bolt of the rivet base 6, move it along the installation chute 5 to the new riveting position, and fix it again. The whole adjustment process is fast and efficient, greatly enhancing the flexibility and adaptability of the production line.

[0038] In summary, this embodiment provides an efficient, stable and intelligent riveting die, which can flexibly meet different riveting requirements, reduce the die replacement frequency, improve production efficiency, and ensure the accuracy and reliability of the riveting process. This die is suitable for modern flexible production lines and has broad application prospects and market value.

[0039] Although the exemplary embodiments of the present disclosure have been described, those skilled in the art should understand that various changes and modifications can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure in essence. Therefore, all changes and modifications are included within the protection scope of the present disclosure defined by the claims. The present disclosure is defined by the appended claims, and equivalents of these claims are also included.

Claims

1. A punching and riveting die, characterized in that, Comprising: A lower die assembly and an upper die assembly that cooperates with the lower die assembly. Among them, the lower die assembly includes a lifting stripper plate, a cylinder installed inside the lower die assembly for driving the lifting of the lifting stripper plate, an installation chute installed inside the lower die assembly, and at least one rivet base that can be adjusted and fixed in the installation chute; At least one punching block is detachably installed on the upper die assembly. During operation, the punching block is in alignment and cooperation with the rivet base.

2. A riveting die as described in claim 1, characterized in that: The upper die assembly and the lower die assembly are in guiding cooperation through at least one guide rod.

3. A riveting die as described in claim 1, characterized in that: At least one spring rod for resetting is provided between the upper die assembly and the lower die assembly.

4. A riveting die as described in claim 1, characterized in that: The upper die assembly is equipped with a pressure plate installed through a spring.

5. A riveting die as described in claim 1, characterized in that: A rivet installation position is recessed downward on the top surface of the rivet base. An optoelectronic sensor for detecting whether the rivet is installed in place is provided at the bottom of the rivet installation position. The data transmission cable of the optoelectronic sensor is led out and connected to an external detection device.

6. A riveting die as described in claim 1, characterized in that: The punching block is in a convex shape and is detachably installed on the upper die assembly through bolts.

7. An impact riveting die as described in claim 1, characterized in that: A number of waist-shaped holes are provided beside the installation chute. The waist-shaped holes are used for fixing the rivet base after its position adjustment in the installation chute.

8. A riveting die as described in claim 1, characterized in that: A vision detection component is adjustably installed in the installation chute. The vision detection component includes a camera that uses images and a light source for providing supplementary lighting. Among them, the image acquisition direction of the camera is upward; The transmission cable of the vision detection component is led out and connected to an external detection device.