CN207740305U

CN207740305U - A kind of punching structure promoting the intensity that presses

Info

Publication number: CN207740305U
Application number: CN201721627368.6U
Authority: CN
Inventors: 陈燕庆; 张波; 吕正涛; 刘芳权
Original assignee: Alai Technology (suzhou) Co Ltd
Current assignee: Alai Technology (suzhou) Co Ltd
Priority date: 2017-11-29
Filing date: 2017-11-29
Publication date: 2018-08-17
Anticipated expiration: 2027-11-29

Abstract

A kind of punching structure promoting the intensity that presses, it is arranged in the rivet for pressing, the rivet includes larger press end and the smaller interconnecting piece of outer diameter of outer diameter, and the punching structure is to be arranged in the protrusion on the end face of end that presses, and the protrusion is towards the interconnecting piece.When riveting thin material, the rivet is inserted by punching press, rivet in riveted holes, and the end that presses of rivet fits into counterbore, and the protrusion on end that presses is pressed on the step that counterbore is formed with riveted holes.The protrusion is deformed by punching press, and lateral expansion is pressed on the side wall of counterbore outward, is inwardly pressed on the interconnecting piece, and in turn, rivet is by swelling in riveted holes.

Description

A kind of punching structure promoting the intensity that presses

Technical field

The utility model is related to Joining Technologies, and in particular to riveting.

Background technology

Thin material, for example, the thin plate that thickness is 0.3 millimeter, other are fixed in by way of pressing to rivet On part, the thin material is easy to loosen.

Utility model content

The technical issues of the utility model is solved：The thin material after pressing how is avoided to loosen.

In order to solve the above technical problems, the utility model provides the following technical solutions：A kind of punching press promoting the intensity that presses Structure is arranged in the rivet for pressing, and the rivet includes larger press end and the smaller interconnecting piece of outer diameter of outer diameter, The punching structure is to be arranged in the protrusion on the end face of end that presses, and the protrusion is towards the interconnecting piece.

Riveted holes are opened up on thin material, counterbore is opened up at the top of riveted holes, and when riveting thin material, the rivet is by punching press, riveting The interconnecting piece of nail is inserted into riveted holes, and the end that presses of rivet fits into the counterbore, and the protrusion to press on end is pressed on On the step that counterbore is formed with riveted holes.The protrusion is deformed by punching press, and lateral expansion is pressed on counterbore outward It on side wall, is inwardly pressed on the interconnecting piece, in turn, rivet is by swelling in riveted holes.

The protrusion is several salient points, and the circumferential direction for the end end face that presses described in several salient points edges is uniformly distributed.Alternatively, described Protrusion is an annulus.

Punching structure described in the utility model can effectively improve thin material press loosening the problem of, improve press it is strong Degree.

Description of the drawings

The utility model is described further below in conjunction with the accompanying drawings：

Fig. 1 is the schematic diagram for the rivet that the utility model is equipped with salient point；

Fig. 2 is the upward view of Fig. 1；

Fig. 3 is the schematic diagram for the rivet that the utility model is equipped with annulus；

Fig. 4 is the upward view of Fig. 3；

Fig. 5 is schematic diagram of the rivet on thin material described in Fig. 1；

Fig. 6 is schematic diagram of the rivet on thin material described in Fig. 3.

Symbol description in figure：

11, press end；12, interconnecting piece；13, salient point；14, annulus；

20, thin material；21, riveted holes；22, counterbore.

Specific implementation mode

A kind of punching structure promoting the intensity that presses, is arranged in the rivet for pressing.

With reference to figure 1, Fig. 3, the rivet includes larger press end 11 and the smaller interconnecting piece 12 of outer diameter of outer diameter, described Punching structure is to be arranged in the protrusion on the end face of end that presses, and the protrusion is towards the interconnecting piece.

With reference to figure 1, Fig. 2, the protrusion can be several salient points 13, the circumferential direction for the end end face that presses described in several salient points edges It is uniformly distributed.As a preferred embodiment, the salient point 13 is close to the interconnecting piece 12, or lean against on the interconnecting piece.As into one What is walked is preferred, and the corner in press the end end face and the interconnecting piece is arranged in the salient point 13, and the salient point 13 is simultaneously It is connect with the end end face that presses, the interconnecting piece.So design, when can ensure salient point by upper and lower squeeze, outward It expands and is pressed on the side wall of counterbore 22.

With reference to figure 3, Fig. 4, the protrusion may be an annulus 14.As a preferred embodiment, the annulus 14 is described in Interconnecting piece 12, or lean against on the interconnecting piece.As a further preference, annulus setting it is described press end end face and The corner of the interconnecting piece, the annulus are connect with the end end face that presses, the interconnecting piece simultaneously.

In practical operation, with reference to figure 5, Fig. 6, when the thin material 20 that grip is 0.3 millimeter, the rivet by punching press, The interconnecting piece 12 of rivet is inserted into the riveted holes 21 of thin material, and the end 11 that presses of rivet coordinates in the counterbore 22 of thin material, presses Protrusion on end 11 is pressed on the step that counterbore 22 is formed with riveted holes 21.Protrusion lateral expansion by punching press, Dilation is pressed on the side wall of counterbore outward, and dilation is pressed on the interconnecting piece 12 inwardly, and rivet is swollen Tightly in riveted holes, with improve thin material press loosening the problem of, improve the intensity to press.

The above content is only the better embodiment of the utility model, for those of ordinary skill in the art, according to this The thought of utility model, there will be changes in the specific implementation manner and application range, and the content of the present specification should not be understood For limitations of the present invention.

Claims

The punching structure of intensity 1. a kind of promotion presses, is arranged in the rivet for pressing, the rivet includes that outer diameter is larger The end that presses (11) and the smaller interconnecting piece (12) of outer diameter, it is characterised in that：The punching structure is to be arranged in the end that presses Protrusion on end face, the protrusion is towards the interconnecting piece；

The protrusion is several salient points (13), and the circumferential direction for the end end face that presses described in several salient points edges is uniformly distributed；

The salient point (13) is arranged the corner in press the end end face and the interconnecting piece, the salient point simultaneously with it is described Press end end face, interconnecting piece connection；

Protrusion lateral expansion by punching press, outward dilation be pressed on the side wall of counterbore, bulge inwardly Divide and be pressed on the interconnecting piece (12), rivet is by swelling in riveted holes.