JPS61146500A - Bending cutter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) When assembling a connector etc. by inserting a pin into a perforated part, the present invention is designed to bend the carrier connected to the inserted pin from its coining part. This invention relates to a cutting device, and particularly to a bending and cutting device when pins are inserted in two rows.

(Prior Art) The conventional general method for assembling a connector etc. (3a) by inserting a pin (2) into a perforated part (1a) as shown in Fig. 6 is as shown in Fig. 7. With the Nimazu pin (2) connected to the rear end of the carrier (4), insert the holed part (
1a) and then insert them into the tunnel-shaped guide body (
5a) and send it to the bending and cutting station.
As shown in Figure 8, the pin on the side with the carrier (4) (
The carrier (4) is fixed on both sides of the pin bending prevention guide part (6a) of the guide body (5a).
The coining part (8) is bent and cut by repeatedly reciprocating the folding/cutting head (7a) surrounding both sides in both directions, and conventionally these steps could be performed in an automatic assembly machine. Ta.

However, when assembling a connector or the like (3b) in which the pins (2) of the perforated part (1b) are pushed through in two rows as shown in FIG. 5, the above method is not possible.

That is, since there is no place to support between the two pins (2), a pin bending prevention guide part (6a) that fixes the inside of the pin is provided.
) cannot be provided, and if the bending and cutting head (7a) is reciprocated, the pin (2) will bend inward as shown in FIG. Also, it is not impossible to forcefully provide the guide part (6a) for preventing bending inside the pin (2), but the distance between the pins (2) is one unit, for example, about 2 aM. Since the guide part also had to be very compact, the effect could not be expected, and in the end, if there were two rows of pins (2), it was considered impossible to bend and cut them in an automatic assembly machine.

(Problems to be solved by the invention) The present invention makes it possible to cut the pins (2) and carrier (4) in an automatic assembly machine even when assembling a connector etc. in which two rows of pins are inserted. The purpose of the present invention is to provide a bending and cutting device that is flexible.

(Means for Solving the Problems) In order to achieve the above object, the present invention has two rows of pins (21
Guide body (
5b), and the base (9) provided opposite thereto is the guide body (5b).
) a folding cutting head (7b) that moves forward or backward with respect to
It consists of a guide body (5b) and a perforated part (1b).
More protruding carrier (4) Two pins on the attachment side (2)
A pin bending prevention guide part (6b) capable of supporting a fraction of the outer surface of the pin is provided, and a bending cutting head (6b) is provided.
7b) has a guide portion aI that can support the remaining portion of the outer surface of the two pins (2) that is not supported by the pin bending prevention guide portion (6b), and is attached to the base (9). a guide forward bending return body aD slidably attached to the guide;
It has a tapered part a2 at the tip, and after the guide front bending body fiυ is set to support the pin (2), the tapered part a2 enters the gap a3 between the two carriers (4) and the two carriers (4) are separated. The primary bending body I moves forward until it bends the carrier (4) outward by a required angle, and after the primary bending body a4 bends the carrier (4) by the required angle, it A secondary folding body α slides along the outer surface and advances until it collides with the carrier (4) bent at a required angle and further bends the carrier (4) at a right angle to the pin (2). is provided, and during the forward movement of the bending and cutting head (7b), the carrier (4) is bent by the secondary bending body (19) until it becomes perpendicular to the pin (21), and then the bending and cutting head (7b)
), the carrier (4) is reversely bent by the guide front bending body αB until it is again in a straight line with the pin (2), and this forward and backward stroke of the bending and cutting head (7a) is repeated the required number of times. This invention presents a bending and cutting device characterized in that it is configured to be folded.

(Function) The function of this device will be explained based on the drawings in the (Example) section.

(Embodiment) FIGS. 1 to 4 illustrate an embodiment of the bending and cutting device of the present invention, and show its operation process. A guide body (5b) that fixes a perforated part (rzb) in which pins (2) with carriers (4) attached in two rows are pushed through in the inner hole.
has a through-hole fin on its side wall ae, and the pin (2) on the side to which the through-hole fin carrier (4) is attached is passed through, and the wall thickness is approximately equal to the length of the protruding pin (2). The opening edge surface of the through hole αη of the side wall ae having
). The through holes provided at both ends of the base body (9) of the bending cutting head (7b) that can move forward or backward relative to the guide body (5b) or the rear end shaft of the guide front bending body I slide. The relationship between the front surface of the base body (9) and the collar part 0, which is freely inserted and provided on the shaft part near the front end of the guide front bending body σD, is interposed with a coil spring ring. Outside right angle bend (
21) is formed, and the wall thickness of this right-angled bent portion 3υ (
Fig. 1 It) shows the coining part (8) from the side wall 0e of the guide body (5b) to the boundary between the pin (2) and the carrier (4).
) is almost equal to Fig. 1 12), and the distance between the inner surfaces of the right-angled bent portions (21) on both sides (L> in Fig. 1) is 2.
It is set slightly C2 larger than the distance between the outer surfaces of the body pins (2) (Ls in Figure 1). This right angle bending part Q1
) whose inner surface protrudes from the perforated part (1b) (2)
) serves as a guide section that supports the remaining portion that is not supported by the pin bending prevention guide section (6b) of the guide body (5b) that supports approximately a portion of the outer surface of the guide body (5b). Base (9
) is provided with a pair of secondary bent bodies α protruding integrally from the center of the front surface, and a primary bent body α4 having a tapered portion az at its tip has its tapered portion α projected forward. A buill panel is inserted between the rear end surface and the front surface of the base body (9). Therefore, the secondary folding body (15) and the primary folding body a4 are relatively slidable. The bending and cutting head (7b) is advanced with respect to the fixed guide body (5b), and the guide portion (1 (I) of the guide lid surface return body αD is supported by applying it to the outer surface of the pin (2). Next, the bending cutting head (7b) is further advanced to cut the tapered part 0 of the primary bending body I into two carriers (4).
(See Figure 2). The head is further advanced and the carrier (41) is bent to the same angle as the taper angle by the compression of the primary bending body α4 (see Fig. 3). Since the side surface on the side to be bent is supported by the carrier (4), it does not bend, but only the carrier (4) is bent.When the carrier (4) is bent to the same angle as the taper angle of the primary bending body I, As the load increases, the primary folding body α4 does not advance any further, and when the bending and cutting head (7b) is further advanced, the coil spring is compressed and the secondary folding body (1!9) moves relative to the primary folding body I. The folding body aS bends the carrier (4) until it becomes a right angle, at which point the bending and cutting head (7b) stops its forward movement (see Fig. 4).The carrier (4) varies depending on the material, but most of them will be cut when bent to this right angle position, but
Even uncut girders become very brittle. Next, the bending/cutting head (7b) moves to a backward stroke, and when the guide lid surface returning body I retreats, its right-angled bending portion r211 returns the carrier (4), which has been bent at right angles, to its original state, that is, pinned. (Bend it so that it is in line with 21. At this time, an inward bending force should also be applied to pin (2), but the pin (
2) and the carrier (4).
) is extremely brittle, the bending force acting on the pin (2) is minute and the pin (2) hardly bends. Therefore, a gap can be left between the two pins (21 and 21), and there is no need to provide a guide part (6b) for preventing pin bending.The bending cutting head (7b) cuts by repeatedly moving forward and backward several times. It is possible to cut all parts, even those made of materials that are difficult to cut.

(Effects of the Invention) The present invention has the above-described configuration and operation, and has the effect of making it possible to disconnect a double-row pin inserted into a perforated part from a carrier in an automatic assembly machine, which was previously impossible. .

[Brief explanation of the drawing]

: Figures 1 to 4 show examples of the present invention. Figure 1 is a state diagram of the device before operation, Figure 2 is a state diagram immediately before the start of the folding process, and Figure 3 is a diagram of the first folding process. FIG. 4 is a diagram showing the state when the bending process by the bending body ends. FIG. 4 shows the state when the bending process by the secondary bending body ends. Fig. 5 is a perspective view of a two-row pin connector, etc., which is targeted by the present invention device, Fig. 6 is a perspective view of a single-row pin connector, etc., and Fig. 7 is a perspective view of a single-row pin connector, etc. before cutting the carrier. FIG. 8 is a diagram of a single-row pin connector, etc., folded and cut into four parts by a conventional device, and FIG. 9 is a diagram of a two-row pin connector, etc., bent and cut by a conventional device. (la') C1b') --- Hole parts, (2+...
・Pins, (3a) (3b)...connectors, etc.
(4)...Carrier, (5a) (5b)...Guide body, (6a') (6b)...Guide part for preventing pin bending, r7a) (7b)...Bending cutting head, ( 8)...Coining part, (9)...Base body,
al... Guide part, a g... Guide front bending body, a
2...Tapered part, (13...Gap, fi4...Primary folded body, α9...Secondary folded body, (Ie...Side wall, an...Through hole, αF・・Through hole, a9...flange, ■
...Coil spring, (211...Right angle bending part, ■...
・Coil spring. Patent applicant: Mitsubishi Pencil Co., Ltd., -, +l,'),,,,.

Claims (1)

[Claims] It consists of a guide body into which a perforated part into which two rows of pins are inserted is set, and a bending cutting head which is placed opposite to this and whose base moves forward or backward relative to the guide body.The guide body has a carrier protruding from the perforated part. A pin bending prevention guide part that can support a fraction of the outer surface of the two pins on the attachment side is provided, and the bending and cutting head is provided with a pin bending prevention guide part that can support a fraction of the outer surface of the two pins on the attachment side. a guide/bending body that has a guide part that can support the remaining part that is not supported by the guide part and is slidably attached to the base body; The guide/bending body is set to support the pin, and then the primary folding body moves forward until it enters the gap between the two carriers and bends the two carriers outward by the required angle; After the bending body bends the carrier at the required angle, it slides along the outer surface of the primary bending body until it collides with the carrier bent at the required angle and further bends the carrier at right angles to the pin. A secondary bending body that moves forward is provided, and after the carrier is bent by the secondary bending body until it becomes perpendicular to the pin in the forward stroke of the bending and cutting head, a guide and unbending body is provided in the backward stroke of the bending and cutting head. The folding and cutting device is characterized in that the carrier is bent in the opposite direction until it is aligned with the pin again, and the forward and backward stroke of the folding and cutting head is repeated a required number of times.