Pressing rivet head commonly used for MJ type side supporting plate nuts

Abstract

A pressing rivet head universal for MJ type side supporting plate nuts comprises an ejector block and a connecting rod, the ejector block and the connecting rod are coaxially and fixedly connected, the diameter of the ejector block is larger than that of the connecting rod, a clamping groove is formed in the upper portion of the connecting rod in the circumferential direction, a contraction clamping block is arranged on the clamping groove, and an avoiding ejector block is arranged at the end, away from the connecting rod, of the ejector block. The avoiding top block is provided with an avoiding area used for avoiding an R area of the MJ side face supporting plate nut in the axial direction. The riveting device is suitable for assembly of parts in closed angle areas of multiple sizes, meanwhile, the situation that the hands of an operator are crushed due to the fact that the hands support the rivet pressing head is avoided, the operation space is enlarged, and the riveting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rivet heads, in particular to a rivet head commonly used for MJ type side support plate nuts. Background Art

[0002] At present, the parts in the fields of automobile production and aircraft manufacturing are mainly assembled by riveting. There are various fasteners used in riveting assembly. According to the number of uses and appearance shapes, they are roughly divided into: flat cone head rivets, countersunk rivets, and semi-circular head rivets. This has also led to the development of the corresponding riveting tool types in these three aspects. Among them, the compression rivet head is one of the tools that cooperates with pneumatic tools to complete the riveting work.

[0003] The existing riveting heads on the market are generally universal riveting heads, and are all designed for flat riveting, which can only be used for riveting some places with relatively spacious working areas. Although this design meets the requirements of 90% of the riveting work of parts, it is impossible to rivet some closed angle areas or some small structural parts, such as MJ side support plate nuts, or forcing the use of ordinary riveting heads for riveting work will cause damage to the parts. In order to solve the riveting work of a small number of parts with closed angle areas, the utility model proposes a riveting head that is generally used for MJ side support plate nuts. Utility Model Content

[0004] The utility model aims to provide a rivet head commonly used for MJ type side support plate nuts, which is suitable for the assembly of parts in closed angle areas of multiple sizes, while preventing operators' hands from being crushed due to supporting the rivet head, thereby expanding the operating space and improving the riveting efficiency.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A rivet head commonly used for MJ type side support plate nuts, including a top block and a connecting rod, the top block and the connecting rod are coaxially fixedly connected, the diameter of the top block is larger than the diameter of the connecting rod, a groove is circumferentially provided on the upper part of the connecting rod, a shrinkage block is provided on the groove, an avoidance top block is provided at one end of the top block away from the connecting rod, and the avoidance top block is axially provided with an avoidance zone for avoiding the R zone of the MJ side support plate nut.

[0007] As a preferred technical solution, the shrinkage block is a perforated double-pass ball structure, and the side wall of the shrinkage block is provided with an opening connecting the upper and lower holes.

[0008] As a preferred technical solution, the diameter of the shrinkage block is larger than the diameter of the connecting rod.

[0009] As a preferred technical solution, the diameter of the avoidance top block is larger than the diameter of the top block.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. In the utility model, an avoidance zone is provided, which is suitable for riveting parts in closed angle areas of various sizes, but is not suitable for riveting operations in narrow areas.

[0012] 2. In the utility model, the rivet head can be clamped in the mounting hole of the riveting machine, and there is no need for manual support to prevent the rivet head from falling off. The riveting operation space is expanded without manual support, and the operator's hands are prevented from being crushed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view of the utility model;

[0016] Figure 3 This is a schematic diagram of the shrinking card block structure of the utility model;

[0017] The reference numerals are as follows:

[0018] Avoidance top block 1, top block 2, connecting rod 3, clamping groove 4, contraction clamping block 5, avoidance area 6. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0022] Example

[0023] like Figure 1-3 As shown, a rivet head commonly used for MJ type side support plate nuts includes a top block 2 and a connecting rod 3. The top block 2 and the connecting rod 3 are coaxially fixedly connected. The diameter of the top block 2 is larger than the diameter of the connecting rod 3. A groove 4 is circumferentially provided on the upper part of the connecting rod 3. A shrinkage block 5 is provided on the groove 4. An avoidance top block 1 is provided at the end of the top block 2 away from the connecting rod 3. The avoidance top block 1 is provided with an avoidance area 6 along the axial direction.

[0024] It is worth mentioning that the top block 2 is provided to provide a force point for the riveting machine, and the connecting rod 3 is inserted into the mounting hole of the riveting machine for connection. The shrinking block 5 is provided to prevent the rivet head from falling off after being connected to the riveting machine, and the shrinking block 5 is elastic. When the rivet head needs to be replaced, it can be removed by simply pulling it down hard. The avoidance area 6 of the avoidance top block 1 avoids the R area of ​​the MJ side support plate nut, making the rivet head more suitable for various narrow closed angle areas.

[0025] Particularly, the avoidance area 6 is formed by cutting the avoidance top block 1 along the axial direction.

[0026] In some feasible embodiments, the shrinkage block 5 is a perforated double-pass ball structure, and the side wall of the shrinkage block 5 is provided with an opening connecting the upper and lower holes. The shrinkage function of the shrinkage block 5 is realized by the provided opening. When the shrinkage block 5 is subjected to circumferential force to make the two side walls of the opening fit together, the opening is in a closed state. At this time, the diameter of the shrinkage block 5 is reduced, which facilitates the installation and disassembly of the rivet head.

[0027] In some feasible embodiments, the diameter of the shrinking block 5 is larger than the diameter of the connecting rod 3, so that the shrinking block 5 can be stuck on the wall of the mounting hole of the riveting machine without force, preventing the riveting head from falling without manual support.

[0028] In some feasible embodiments, the diameter of the avoidance top block 1 is greater than the diameter of the top block 2 .

[0029] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. So far, each embodiment of the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. The scope of the present disclosure is defined by the attached claims.

Claims

1. A rivet head commonly used for MJ type side support plate nuts, characterized in that: The invention comprises a top block (2) and a connecting rod (3), wherein the top block (2) and the connecting rod (3) are coaxially fixedly connected, the diameter of the top block (2) is larger than the diameter of the connecting rod (3), a clamping groove (4) is circumferentially provided on the upper part of the connecting rod (3), a contraction clamping block (5) is provided on the clamping groove (4), an avoidance top block (1) is provided at one end of the top block (2) away from the connecting rod (3), and an avoidance zone (6) for avoiding the R zone of the MJ side support plate nut is axially provided on the avoidance top block (1).

2. The rivet head commonly used for MJ type side support plate nuts according to claim 1, characterized in that: The shrinking block (5) is a perforated double-pass ball structure, and the side wall of the shrinking block (5) is provided with an opening connecting the upper and lower holes.

3. The rivet head commonly used for MJ type side support plate nuts according to claim 1, characterized in that: The diameter of the shrinking block (5) is greater than the diameter of the connecting rod (3).

4. The rivet head commonly used for MJ type side support plate nuts according to claim 1, characterized in that: The diameter of the avoidance top block (1) is greater than the diameter of the top block (2).

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