Guidable rivet bumper

By designing a separate buffer ring and a fixing ring, the deformation and guiding problems during riveting of thin sheet metal are solved, thereby improving the stability and mechanical properties of the riveting process.

CN224406364UActive Publication Date: 2026-06-26CHANGCHUN JIWEN AUTO PARTS CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGCHUN JIWEN AUTO PARTS CO LTD
Filing Date
2025-07-11
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

When riveting thin sheet metal, uneven stress on the sheet metal can lead to deformation, and the lack of guiding force can result in poor flatness of the riveting die head and low buffering force, which affects mechanical stability.

Method used

The system employs a separate buffer ring and a fixed ring structure. The buffer ring consists of a polyurethane semi-circular buffer ring, and the fixed ring consists of a stainless steel semi-circular fixed ring. The connection structure and the docking structure achieve positioning guidance and axial buffering, preventing plate deformation and stabilizing the riveting process.

Benefits of technology

It improves the flatness of the sheet metal and the uniformity of the clamping force during the riveting process, ensuring the structural stability and mechanical properties after riveting.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a riveting buffer that can be guided relates to riveting tool technical field. Including split type buffer ring and split type fixed ring, split type buffer ring is connected in split type fixed ring one end for pre -compaction on the riveting processing surface of board to prevent the deformation of board, and split type fixed ring is used for the positioning guide of the riveting of riveting joint, split type buffer ring includes two groups semicircular buffer ring, and two groups semicircular buffer ring are buckled to form the split type buffer ring of circular ring shape, split type fixed ring includes two groups semicircular fixed ring, and two groups semicircular fixed ring are buckled to form the split type fixed ring of circular ring shape, and the end face on one end of semicircular fixed ring is provided with the connecting structure for with one end fixed connection of semicircular buffer ring, and the butt joint structure is set up between two groups semicircular fixed ring for making two groups semicircular fixed ring butt joint buckling.
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Description

Technical Field

[0001] This utility model relates to the field of riveting tooling technology, and in particular to a guideable riveting buffer. Background Technology

[0002] Riveting, also known as riveting connection, is a method of connecting multiple parts by using axial force to thicken the rivet shank inside the rivet hole and form a rivet head.

[0003] When riveting products, if the sheet material is thin (≤3mm), the uneven stress on the sheet material when the riveting die is inserted will cause the sheet material to deform. At the same time, the lack of guiding force when the riveting die is inserted will result in a difference in the flatness of the two rings after fixing and a small buffer force. Both of these situations will lead to insufficient mechanical stability after riveting.

[0004] Therefore, based on the above-mentioned technical problems, those skilled in the art urgently need to develop directional riveting buffers. Utility Model Content

[0005] The purpose of this invention is to provide a guideable riveting buffer to solve the above-mentioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The present invention provides a guideable riveting buffer, comprising a separate buffer ring and a separate fixing ring. The separate buffer ring is connected to one end of the separate fixing ring to pre-press onto the riveting surface of the plate to prevent deformation of the plate. The separate fixing ring is used to position and guide the riveting of the rivet joint.

[0008] The split buffer ring includes two sets of semi-circular buffer rings, which are interlocked to form a circular split buffer ring.

[0009] The detachable fixing ring includes two sets of semi-circular fixing rings, which are interlocked to form a circular detachable fixing ring.

[0010] A connecting structure is provided on the end face of one end of the semicircular fixing ring for fixed connection with one end of the semicircular buffer ring.

[0011] A docking structure is provided between the two sets of semicircular fixing rings to allow the two sets of semicircular fixing rings to be docked and fastened.

[0012] Furthermore, the semi-circular buffer ring is a polyurethane semi-circular buffer ring.

[0013] Furthermore, the semi-circular retaining ring is a stainless steel semi-circular retaining ring.

[0014] Furthermore, the connection structure includes a semi-circular slot formed on the end face of the semi-circular fixing ring for inserting one end of the semi-circular buffer ring into the connection.

[0015] The two sets of semi-circular buffer rings are simultaneously engaged with the two sets of semi-circular fixing rings to form the ring-shaped separate fixing ring.

[0016] Furthermore, the semi-circular buffer ring inserted into the semi-circular slot is fixed by strong adhesive.

[0017] Furthermore, the docking structure includes a pin, which is disposed on the end face of the interlocking surface of one of the two sets of semicircular fixing rings, and the other set of semicircular fixing rings has an insertion hole corresponding to the pin and into which the pin is inserted.

[0018] The two sets of semicircular fixing rings are provided with corresponding assembly holes at the end face positions of their interlocking surfaces to install bolts so that the two sets of semicircular fixing rings are fixedly connected after interlocking.

[0019] Furthermore, at least one set of assembly holes is provided for the two sets of semi-circular fixing rings.

[0020] In the above technical solution, the guideable riveting buffer provided by this utility model has the following beneficial effects:

[0021] The device's detachable buffer ring can clamp the riveting surface before riveting while providing axial cushioning. After the pin is positioned, the clamping surface has good flatness and the clamping force is evenly distributed, effectively improving product deformation. Simultaneously, the detachable fixing ring, while fixing and supporting the buffer ring, also provides positioning and guidance for the riveting die during insertion, ensuring a smooth structure after riveting. In summary, the use of this device makes the mechanical properties of the riveted product more stable. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1 A schematic diagram of the structure of the guideable riveting buffer provided in an embodiment of this utility model;

[0024] Figure 2 A schematic diagram illustrating the docking indication of the docking structure of the guideable riveting buffer provided in this embodiment of the utility model;

[0025] Figure 3 A schematic diagram of multiple sets of mounting holes for a guideable riveting buffer provided in an embodiment of the present utility model;

[0026] Figure 4 A schematic diagram illustrating the docking indication of the docking structure under multiple sets of assembly holes of the guideable riveting buffer provided in this embodiment of the utility model.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Semi-circular buffer ring; 2. Semi-circular fixing ring; 3. Semi-circular slot; 4. Pin; 5. Insertion hole; 6. Assembly hole. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-4 The guideable riveting buffer includes a separate buffer ring and a separate fixing ring. The separate buffer ring is connected to one end of the separate fixing ring to pre-press it onto the riveting surface of the sheet metal to prevent deformation of the sheet metal. This can meet the production scenarios with high flatness requirements. The separate fixing ring is used to position and guide the riveting of the rivet joint, avoiding the situation where the two rings have poor flatness and small buffering force after fixing when there is no pin positioning and guiding function.

[0031] The split buffer ring includes two sets of semi-circular buffer rings 1, which are interlocked to form a circular split buffer ring.

[0032] The detachable fixing ring includes two sets of semi-circular fixing rings 2, which are interlocked to form a circular detachable fixing ring;

[0033] A connecting structure is provided on the end face of one end of the semicircular fixing ring 2 for fixed connection with one end of the semicircular buffer ring 1;

[0034] A docking structure is provided between the two sets of semicircular fixing rings 2 to allow the two sets of semicircular fixing rings 2 to be docked and fastened.

[0035] The separate design of the buffer ring and the fixed ring allows the buffer to be adjusted in position at will, making replacement and installation more convenient.

[0036] Furthermore, the semi-circular buffer ring 1 is a polyurethane semi-circular buffer ring. The material properties of the polyurethane semi-circular buffer ring 1 can buffer the axial impact force generated when the rivet is driven in through elastic deformation. In this embodiment, the axial length of the semi-circular buffer ring 1 is increased to 15mm, while most on the market are 2mm. The increased semi-circular buffer ring 1 can withstand greater clamping force and provide a greater buffer stroke, resulting in better control of deformation on the surface of the part and improved stability of riveting performance.

[0037] Furthermore, the semi-circular retaining ring 2 is a stainless steel semi-circular retaining ring, which has a stable structure and is suitable for positioning and guiding during the rivet insertion process.

[0038] Furthermore, the connection structure includes a semi-circular slot 3 opened on the end face of the semi-circular fixing ring 2 for inserting one end of the semi-circular buffer ring 1 into the connection.

[0039] The two sets of semi-circular buffer rings 1 are simultaneously engaged with the two sets of semi-circular fixing rings 2 to form a ring-shaped, separate fixing ring.

[0040] Furthermore, the semi-circular buffer ring 1 inserted into the semi-circular slot 3 is fixed by strong adhesive.

[0041] In this embodiment, the groove depth is set to 5mm, and the semi-circular buffer ring 1 is inserted into the 5mm semi-circular slot 3. At the same time, the connection method of using strong adhesive to fix it makes the semi-circular buffer ring 1 less likely to fall off during use and increases its service life.

[0042] Furthermore, the docking structure includes a pin 4, which is set on the end face of the interlocking surface of one of the two sets of semicircular fixing rings 2, and the other set of semicircular fixing rings 2 has an insertion hole 5 corresponding to the pin 4 and into which the pin 4 is inserted.

[0043] The two sets of semi-circular fixing rings 2 are provided with corresponding assembly holes 6 at the end face positions of their interlocking surfaces to install bolts so that the two sets of semi-circular fixing rings 2 are fixedly connected after interlocking.

[0044] The two main bodies of the semi-circular fixing ring 2 are connected, and the addition of the guide pin 4 into the insertion hole 5 can improve the flatness of the working surface of the split buffer ring after the semi-circular fixing ring 2 is assembled, so that the clamping force is evenly distributed and the effect is stable.

[0045] Furthermore, at least one set of assembly holes 6 is provided for the two sets of semi-circular fixing rings 2. When the axial length of the semi-circular fixing rings 2 is increased, more assembly holes 6 can be provided to connect and fix the two sets of semi-circular fixing rings 2, thereby improving the structural stability.

[0046] In summary, the separate buffer ring of this device can clamp the surface of the riveting area before riveting and provide axial buffering. After the pin is positioned, the flatness of the clamping surface is good, and the clamping force is evenly distributed, which can effectively improve the product deformation. At the same time, the separate fixing ring, while fixing and supporting the separate buffer ring, can also provide positioning and guidance for the riveting die head during the insertion process, so that the structure after pin riveting is flat. In conclusion, the use of this device makes the mechanical properties of the riveted product more stable.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A guideable riveted buffer, characterized in that, It includes a separate buffer ring and a separate fixing ring. The separate buffer ring is connected to one end of the separate fixing ring to pre-press it onto the riveting surface of the plate to prevent deformation of the plate. The separate fixing ring is used to position and guide the riveting of the rivet joint. The split buffer ring includes two sets of semi-circular buffer rings (1), which are interlocked to form a circular split buffer ring. The detachable fixing ring includes two sets of semi-circular fixing rings (2), which are interlocked to form a circular detachable fixing ring; A connecting structure is provided on the end face of one end of the semicircular fixing ring (2) for fixed connection with one end of the semicircular buffer ring (1); A docking structure is provided between the two sets of semicircular fixing rings (2) to allow the two sets of semicircular fixing rings (2) to dock and fasten together.

2. The guideable riveting buffer according to claim 1, characterized in that, The semi-circular buffer ring (1) is a polyurethane semi-circular buffer ring.

3. The guideable riveting buffer according to claim 1, characterized in that, The semi-circular fixing ring (2) is a stainless steel semi-circular fixing ring.

4. The guideable riveting buffer according to claim 1, characterized in that, The connection structure includes a semi-circular slot (3) formed on the end face of the semi-circular fixing ring (2) for inserting one end of the semi-circular buffer ring (1) into the connection. The two sets of semicircular buffer rings (1) are engaged simultaneously with the two sets of semicircular fixing rings (2) to form the ring-shaped separate fixing ring.

5. The guideable riveting buffer according to claim 4, characterized in that, The semi-circular buffer ring (1) inserted into the semi-circular slot (3) is fixed by strong adhesive.

6. The guideable riveting buffer according to claim 1, characterized in that, The docking structure includes a pin (4), which is set on the end face of the interlocking surface of one of the two sets of semicircular fixing rings (2), and the other set of semicircular fixing rings (2) has a hole (5) corresponding to the pin (4) and into which the pin (4) is inserted. The two sets of semicircular fixing rings (2) are provided with corresponding assembly holes (6) at the end face positions of their interlocking surfaces to install bolts so that the two sets of semicircular fixing rings (2) are fixedly connected after interlocking.

7. The guideable riveting buffer according to claim 1, characterized in that, At least one set of assembly holes (6) is provided for the two sets of semi-circular fixing rings (2).