JP3066202U - Rotary two-stage push plate stopper without eyelets - Google Patents

Abstract

(57) [Summary] [Purpose] The present invention aims to provide a plate stopper device for easily pressing a metal plate against each other. [Structure] An internal slider assembly provided with a spring and a push pin is provided inside a hollow punch body provided with a chuck arbor, and provided with a combination of an open / close bar and an open / close burring punch inserted into a lower fixed casing. A rotating two-stage push plate stopper that does not use eyelets, with a stopper attached at the end.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a crimping plate stopper.

[0002]

[Prior art]

 In the past, parts such as sheet metal plates were attached by pressing with eyelets or spot welding.

[0003]

[Problems to be solved by the invention]

 This has the following problems. In the case of using eyelets, drilling was performed first, and then the eyelets were inserted and then pressed using a punch and a die. Even in spot welding, various techniques and preparations were required, such as the fact that the spot chip did not reach or that aluminum metal was not attached unless it was a high-cost DC type. The present invention has been made to eliminate these problems.

[0004]

[Means for Solving the Problems]

 A spring (2) is provided inside the hollow of the punch body (1), which constitutes the whole body, provided with a chacuar bar (9), and an internal slider assembly (4) that moves smoothly underneath is provided. Install the push pin (8). In addition, a hollow fixed casing (5) inserted and fixed in contact with the lower part of the inner wall of the punch body (1) is provided so that it can move smoothly in contact with this hollow part. An open / close bar (6) is provided. Next, the opening and closing bar (6) is processed so as to be slightly pushed into the push pin (8), and the opening and closing burring punch (7) is connected to the opening and closing bar (6). ) Is semi-fixed so that it can move a little inside. Finally, attach a stopper (3) that temporarily locks the vertical movement of the internal slider assembly (4) from outside the punch body (1). The present invention is a rotary two-stage push plate stopper that does not use an eyelet and has the above configuration.

[0005]

[Embodiment of the invention]

 A chuck arbor (9) corresponding to the chuck of the drilling machine is prepared. In addition, the inside of the punch body (1) is hollowed by performing medium boring. Next, a chuck arbor (9) is provided on the upper part of the punch body (1), and an internal slider is provided in the hollow inside of the punch body (1) in order from the lower end with a spring (2) and a push pin (8). Insert the assembly (4) and then press-fit the hollow fixed casing (5) to securely fix it to the punch body (1). Insert the open / close bar (6) into the hollow part of this fixed casing (5), confirm that it moves smoothly, and process the open / close burring punch (7) so that the tip extends to the left and right at the lowermost end. ) Is inserted and provided. The opening / closing burring punch (7) is also hollowed up to near the tip. The opening / closing bar (6) is inserted into this hollow portion when pushed by the push pin (8), and is opened and closed. (7) Pushing the wall and acting as a force to spread the punch to the left and right. This structure is used. Finally, set the chuck arbor (9) on the drill for use. Alternatively, as shown in FIG. 5, the opening / closing bar (6) may be provided with a structure in which the opening / closing burring punch (7) is pushed while being pulled out by the pulling-up force.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described. According to the present invention, a chuck arbor (9) is provided on the head of the punch body (1), and a spring (2) and a push pin (8) which operates up and down in conjunction with the spring (2) are provided inside the hollow of the punch body (1). , An internal slider assembly (4) is provided. In addition, a fixed casing (5) fixed to the lower part of the punch body (1) is provided, and an opening / closing bar (6) is inserted into the fixed casing (5), and it is confirmed that the body moves smoothly. Next, an opening and closing burring punch (7) is inserted into the opening and closing bar (6) from below. The opening / closing burring punch (7) is machined into a structure whose tip is opened by the pressing force of the opening / closing bar (6). Further, as shown in FIG. 5, the opening / closing bar (6) may be pulled out in reverse, that is, the tip of the opening / closing burring punch (7) may be opened by the upward pulling force. Finally, the stopper (3) is attached to rotate the whole body together with the inside of the punch body (1) and transmit the maximum force to the opening and closing burring punch (7). The present invention has the above-described structure. When using this structure, the chuck arbor (9) is inserted and fixed in the chuck of the drilling machine. Switch on and rotate. Next, two metal plates are stacked on the table of the drilling machine, and the opening and closing burring punch (7) at the end is pushed down while rotating while rotating. First, a hole is gradually made in the metal plate, and the edge of the tip of the hole is expanded by strong rotating force and molded into a brim shape. Further drilling work progresses, and when it penetrates, when the repulsive force from the plate of the opening and closing burring punch (7) decreases, the spring (2) that has been compressed until then exerts a strong restoring force, and together with the push pin (8). The opening / closing bar (6) may have a structure in which the inner wall of the opening / closing burring punch (7) is strongly pushed or expanded by the method shown in FIG. The edges of the plate are rolled into eyelets and molded, and the two plates are caulked to complete.

[0007]

[Effect of the invention]

 Drilling, setting eyelets, crimping with male and female dies, and performing spot welding did not require any multiple processes, leading to significant cost reduction.

[Brief description of the drawings]

FIG. 1 is a partially sectional perspective view of the assembly of the present invention.

FIG. 2 is a diagram illustrating the use of the present invention;

FIG. 3 is a first-stage indentation diagram of the present invention;

FIG. 4 is a diagram showing the completion of the second stage pressing of the present invention.

FIG. 5 is an explanatory view of the processing method by the second stage drawing of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Punch body 2 Spring 3 Stopper 4 Internal slider assembly 5 Fixed casing 6 Opening / closing bar 7 Opening / closing burring punch 8 Push pin 9 Chuck arbor F Push force R Rotation force

Claims (1)

[Utility model registration claims] An internal slider assembly (4) provided with a spring (2) and a push pin (8) is provided in a hollow interior of a punch body (1) having a chuck arbor (9) attached to a head, and a punch body. A fixed casing (5) fixed to (1) is provided, and an opening / closing bar (6) and an opening / closing burring punch (7) are provided therein. Finally, a stopper (3) is attached. Push plate stopper.