TWM457789U - Second-order type rivet column - Google Patents

Description

Second-stage riveting column

The invention relates to a stud, in particular to a second-stage stud, which can provide a flat joint surface to reduce the inclination of the object after riveting.

Riveting is a commonly used bonding method, which can firmly combine two objects, and the existing riveting is mainly to provide perforations on the object, and then pass a riveting column through the perforation, and form an enlarged portion at one end of the riveting column by punching or the like. In order to combine the two objects, the existing stud has one end forming a head to form a single rivet, and also directly formed on the object.

The existing stud 30, as shown in FIG. 5, is convexly disposed on one side of a head or an object, and forms a first-order structure with respect to the head or the object, and the combination can be maintained for the combination of the two objects. The flatness of the head or the side of the object forming the stud 30 should be flat; however, the existing stud 30 is mostly formed by stamping, and cannot reach the ideal state as shown in Fig. 5. As shown in FIG. 6, the conventional one-stage stud 30 is formed at the end where the stud 30 is engaged with the head or the object to form an undulating embossing portion 32, so that when the stud 30 is coupled to the object, It is easy to cause the object to tilt due to the floating portion 32 around the stud 30, thereby affecting the quality of the object combination.

In order to solve the shortcomings and limitations of the existing studs, the main The purpose is to propose a second-stage riveting column, which can avoid the occurrence of undulating embossing by the arrangement of the second-stage riveting column, so as to avoid the inclination of the object when the object is combined, so as to achieve the purpose of improving the bonding quality of the object.

The present invention solves the prior art problem of the second-stage riveting column, which comprises: a body; a platform portion protruding from one side of the body; and a riveting portion protruding from the platform portion away from the body a side surface, wherein a cross-sectional diameter of the platform portion is larger than a cross-sectional diameter of the rivet portion, and a flat abutting surface is formed outward from a portion of the platform portion connecting the rivet portion, and the platform portion is opposite to the portion The height of the body is less than the height of the stud portion relative to the platform portion.

The technical means of the novel can utilize the structure of the platform part to avoid the embossing of the rivet column, and prevent the phenomenon of tilting when the object is combined, so as to improve the quality of the object combination.

"This New Type"

10‧‧‧ Ontology

12‧‧‧ Platform Department

122‧‧‧Abutment

14‧‧‧Rives

142‧‧‧Expanding Department

20‧‧‧ objects

22‧‧‧Perforation

Prior Technology

30‧‧‧ Rivet

32‧‧‧Floating

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a preferred embodiment of the present invention and an article.

Figure 2 is a perspective, cross-sectional view of the preferred embodiment of the present invention in combination with an article.

Figure 3 is a cross-sectional view of the preferred embodiment of the present invention in combination with an article.

Figure 4 is a schematic cross-sectional view showing the preferred embodiment of the present invention.

Fig. 5 is a cross-sectional view showing the combination of a conventional one-stage rivet column and an object.

Fig. 6 is a cross-sectional view showing a combination of a stepped stud of a conventional embossing portion and an object.

In order to understand in detail the technical features and practical effects of the new model, It can be implemented according to the contents of the specification. Further, the preferred embodiment shown in the figure will be described in detail as follows: please refer to FIG. 1 to FIG. 3, and the second-stage riveting column of the present invention can be seen from the figure. The main body 10 includes a main body 10, a platform portion 12 and a stud portion 14. The main body 10 can be a head such as a conventional rivet or an object to be riveted, such as a heat sink of a lead frame, and a platform portion. 12 is convexly disposed on one side of the body 10, and the stud portion 14 is protruded from a side of the platform portion 12 away from the body 10, wherein the cross-sectional diameter of the platform portion 12 is greater than the cross-sectional diameter of the stud portion 14. The platform portion 12 forms a flat abutting surface 122 from the portion connecting the stud portion 14 , and the height of the platform portion 12 relative to the body 10 is smaller than the height of the stud portion 14 relative to the platform portion 12, and the platform portion 12 The rivet portion 14 can have a circular cross section.

When forming the second-stage rivet column of the present invention, please refer to FIG. 4, and the rivet portion 14 can be formed on the body 10 by means of punching, and then the die is matched with the stamping method between the body 10 and the rivet 14 The platform portion 12 is formed. At this time, even in the first press forming, a raised bulging portion is formed on the body 10 around the rivet portion 14. When the platform portion 12 is formed, the platform portion 12 is also opposed to the body 10. The height is smaller than the height of the rivet portion 14 relative to the platform portion 12, so that the forming area of the platform portion 12 is small, and the pressing pressure is small, so that the amount of bulging is reduced, thereby forming a flat abutment of the platform portion 12 away from the side of the body 10. Face 122, without the uneasiness of the bulge.

Therefore, when the object is combined by the stud, please refer to FIG. 1 to FIG. 3, and the stud portion 14 can pass through the through hole 22 of the object 20, and then the free end of the stud portion 14 can be punched or the like. An enlarged portion 142 is formed to combine the objects, and at this time, the object 20 having the perforations 22 is formed at one side In time, the abutting surface 122 on the platform portion 12 is abutted. Since the abutting surface 122 on the platform portion 12 is flat, the phenomenon of tilting when the objects are combined can be avoided, and the quality of the object can be improved.

Secondly, the present invention can be applied to objects combined by riveting, such as the combination of a heat sink and a lead frame or a circuit board, and can also be formed into a rivet shape to combine two independent objects, thereby improving the scope of application of the present invention. Practicality.

It is apparent that the various modifications and changes can be made without departing from the spirit and novel concept of the present invention, and the specific embodiments disclosed herein are not intended to limit the present invention. All modifications in the scope of the appended patent application.

10‧‧‧ Ontology

12‧‧‧ Platform Department

122‧‧‧Abutment

14‧‧‧Rives

20‧‧‧ objects

22‧‧‧Perforation

Claims (2)

A second-stage rivet column comprising: a body; a platform portion protruding from a side of the body; and a rivet portion protruding from the side of the platform portion away from the body, wherein the platform portion The cross-sectional diameter is larger than the cross-sectional diameter of the rivet portion, and a flat abutting surface is formed outward from the portion connecting the rivet portion at the platform portion, and the height of the platform portion relative to the body is less than the riveting The height of the column portion relative to the platform portion. The second-stage stud according to claim 1, wherein the platform portion and the stud portion have a circular cross section.