JPS62259628A - Linking method for member - Google Patents

Abstract

PURPOSE:To enable a strong linkage without changing the thickness of a member by forming a half-punched projecting part with the overlapping of two members and combining both members with the plastic deformation of the member of one part by pressing in the prescribed direction. CONSTITUTION:A projecting part 10 is formed by executing a halfpunching in X direction by the press providing a punch and die, for example by overlapping two members providing l, 2. In this case, the front part 11 of the member 1 of one part and the back part 12 of as the projection forming part of the member 2 of the other part are integrally overlapped and two sheets of the thickness portions are projecting. The shearing end face 3 of the member 1 of this state is pressed in Y direction by the press once again, performing the plastic work that the portion 5 is crept into the back side of the projecting part 10, and both members 1, 2 are linked with the combination. Consequently, no thickness of the member l, 2 becomes thinner and a strong linking state can be formed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a method for connecting members that is used to connect a plurality of members by plasticity.

(Prior Art) Conventionally, there is one example of a connection method as described above, and this method will be explained based on FIGS. 8 to 11.

That is, the reference numeral 100 in the figure is an upper plate, and the reference numeral 101 is a lower plate. In order to connect both, the upper plate 100 and the lower plate 101 are overlapped and a half-punched protrusion A is formed by pressing. This protrusion A is located at one opposing station edge P
, Q are in a sheared state, and the other opposing peripheral edges R and S are bent in the L direction. and,
After the above processing, the press is again used to plastically deform only the central portion of the protrusion A so that one of the four sides of the upper plate 100 is sheared as shown in FIG. 11. L plate 10 with opposing peripheral edges P and Q in a locked state
0 and the lower plate 101 are connected.

(Problem to be Solved by the Invention) However, with the above-mentioned connection method, connection can be made without using connection parts such as screws or rivets, but plastic deformation occurs in a half way. As a result, it is clear that the wall thickness of the protrusion A becomes smaller, and scratches such as punch marks may occur on the visible surface of the protrusion A, which may damage the material of the plate or the thickness of the plate itself. Depending on conditions such as thickness, there was a risk that sufficient strength could not be maintained.

(Object of the Invention) This invention was made to solve the above-mentioned problems, and is a method for connecting members that can obtain a strong connected state without substantially changing the wall thickness of the members. is intended to provide.

[Structure J of the Invention (Means for Solving Problems) The method for connecting members according to the present invention includes a protrusion in which the sheared end surfaces of both members are exposed on the side of the one member of one member and the other member that are overlapped. By applying pressure in a direction opposite to the sheared end surface, plastic working is applied to a state in which the protrusion-proximity portion of one member and the protrusion-forming portion of the other member engage and abut, thereby forming both members. It is characterized by connecting.

(¥ flow side) Hereinafter, this invention will be explained based on the drawings.

FIG. 1 to FIG. 6 are diagrams explaining one embodiment of the present invention.

Figure 1 shows two members 1 connected by the connecting force method.
．． FIG. 2 is a diagram illustrating the connecting portions of the two members 1.2, in which the plate-shaped portions of both members 1.2 are superposed, and following plastic working by applying pressure in the direction of superposition indicated by the arrow X in the first factor, Both members 1 and 2 are connected by performing plastic working by applying pressure in the direction of the arrow y that is substantially perpendicular to this. In addition, as member 1.2,
It includes various parts such as plates and shapes.

Next, the process of connecting both the above-mentioned members 1.2 will be explained in detail.

First, as shown in FIG. 2, the portions of both members 1.2 to be connected are brought into a superposed state, and the third As shown in Figures and Figure 4, one member (
A protruding portion 10 is formed in a half-punched state on the right side of the member (in FIG. 3). This protrusion 10 has a front part 11 as a protrusion forming part consisting of a part of one member 1 and a back part 12 as a protrusion forming part consisting of a part of the other member 2. One opposite side is sheared in a substantially straight line, and the other opposite side is bent and protrudes by an amount equal to the thickness of the overlapped members 1.2.

Therefore, the protrusion 10 has a front part 11 and a back part 12.
Sheared end faces 3 and 4 consisting of end faces of are exposed on the one member 1 side. After the above processing, the end of one member 1 is pressurized again using the press device from the direction opposite to the sheared end surface 3 on one side (the upper sheared end surface in FIG. 3). By plastically deforming the portion 5 from the end to the press working line so as to sink into the back side of the protrusion 10, as shown in FIG. It engages and abuts the back part 12 of. In addition, even in this state, in the embodiment of the series of both members 1.2, the end face of the 'JL part 12 on the sheared end face 3 is pressurized from the same direction and the back part 12 is shifted relative to the front part 11. By plastically deforming it, as shown in Figure 6,
On both sides of the protrusion 1°, a portion of one member 1 near the protrusion and the back portion 12 are engaged and abutted. Both members 1.2 connected in this way have almost no decrease in wall thickness during processing, and can obtain a strong connected state. Note that the processing of the portion 5 from the end of one member 1 to the press processing line and the back portion 12 may be performed in the reverse order of the above steps or at the same time.

FIG. 7 explains another embodiment of the present invention, in which a protrusion 10 is formed on one member 1 side of the superposed members 1 and 2, and then pressure is applied in a direction opposite to the sheared end surface. By plastically deforming only the back portion 12 of the protrusion 10, the portion of one member 1 near the protrusion and the back portion 12 are engaged and in contact with each other. Even if this is done, both members 1 and 2 are similar to the embodiment described above.
It is possible to maintain a strong connection state, especially in this case
ri mHtsu ☆ν礒、こgon History Kat＼
This is suitable when the two locations are relatively far apart.

Note that the shape and material of the member, the shape of the protrusion to be formed, the f stages of processing, etc. are not limited to the above embodiments.

[Effects of the Invention] As explained above, according to the method for connecting members of the present invention, there is a protrusion on the one member side of the superposed one member and the other member, in which the sheared end surfaces of both members are exposed. form,
By applying pressure in a direction opposite to the sheared end surface, a plastic preform is applied to connect the two members so that the portion near the protrusion of one member and the protrusion forming portion of the other member engage and come into contact with each other. As a result, it is possible to prevent damage to the visible surface of the protrusion, and it is also possible to obtain a strong connection state with almost no change in the wall thickness of the parts at the connection part. be effective.

[Brief explanation of drawings]

FIG. 1 is a perspective view illustrating a connecting portion of connected members based on an embodiment of the present invention, FIGS. 2 to 6 sequentially show the processing process of the connecting portion shown in FIG. 1, and FIG. 3 is a sectional view showing the state in which the members are overlapped, FIG. 3 is a sectional view showing the state in which protrusions are formed, FIG. 4 is a sectional view taken along the line T in FIG. 3, and FIG. 5 is one of the members. 6 is a sectional view showing a state in which the back part is plastically deformed, FIG. 7 is a sectional view illustrating another embodiment of the present invention, and FIG. 8 is a conventional one. FIG. 9 is a cross-sectional view taken along the I-■ line in FIG. 8, and FIG. 10 is a protrusion taken along the If-TI line in FIG. 8. A cross-sectional view after molding, and FIG. 11 is a cross-sectional view illustrating a state in which the protrusion shown in FIG. 10 is further expanded. DESCRIPTION OF SYMBOLS 1... One member, 2... Other member, 3.4... Sheared end surface, 10... Protrusion, 12... Back part (protrusion formation part). Patent Applicant: Sankyo Aluminum Industry Co., Ltd. Agent: Mr. Oshio

Claims (1)

[Claims] (1) A protrusion is formed on the one member side of the superposed one member and the other member to expose the sheared end surfaces of both members, and by applying pressure in the direction opposite to the sheared end surfaces, the one member is 1. A method for connecting members, characterized in that the protrusion-proximal portion and the protrusion-forming portion of the other member are plastically worked into a state in which they engage and come into contact with each other to connect the two members.