JPH0466680B2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) When assembling a connector etc. by inserting a pin into a holed 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 holed part 1a as shown in FIG. The carrier 4 is inserted into the perforated part 1a with the carrier 4 connected to its rear end, and then these parts are fitted into the tunnel-shaped guide body 5a and sent to the bending and cutting station, where the carrier 4 is attached as shown in FIG. A bending and cutting head 7a surrounds both sides of the carrier 4 with both sides of the side pin 2 fixed by the pin bending prevention guide portion 6a of the guide body 5a.
The coining portion 8 is bent and cut by repeatedly reciprocating the coin in both directions, and conventionally, these steps could be carried out in an automatic assembly machine.

However, when assembling a connector or the like 3b in which pins 2 of a perforated part 1b are inserted in two rows as shown in FIG. 5, the above method is not possible. That is, 2
Since there is no place to support between the pins 2 on the body, a guide part 6a for preventing pin bending fixes the inside of the pin.
This is because if the bending/cutting head 7a is moved back and forth without providing the pin 2, the pin 2 will be bent inward as shown in FIG. Also, it is possible to forcibly provide the guide portion 6a for preventing bending inside the pin 2, but if the distance between the pins 2 is in units of mm, such as about 2 mm, the guide portion will also be too large. Since it had to be made compact, no effect could be expected, and in the end, if there were two rows of pins 2, it was considered impossible to bend and cut it in an automatic assembly machine.

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

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a guide body 5b for setting the perforated part 1b into which two rows of pins 2 are inserted, and a base body 9 disposed opposite to the guide body 5b. body 5
Bending cutting head 7 moving forward or backward relative to b
b, and the guide body 5b has a perforated part 1b.
A guide portion 6b for preventing pin bending is provided that can support a fraction of the outer surface of the two pins 2 on the side to which the carrier 4 is attached, and the bending/cutting head 7b is provided with a guide portion 6b for preventing the pins from bending. a guide/bending return body 11 which is slidably attached to the base body 9 and has a guide part 10 capable of supporting the remaining portion of the outer surface of the pin that is not supported by the pin bending prevention guide part 6b; It has a tapered part 12 at its tip, and after the guide/bending body 11 is set to support the pin 2, the tapered part 12 enters into the gap 13 between the two carriers 4 and moves the two carriers 4 together. The primary bending body 14 advances until it is bent outward by a required angle, and after the primary bending body 14 bends the carrier 4 by a required angle, it slides along the outer surface of the primary bending body 14. Carrier 4 bent at the required angle
A secondary bending body 15 is provided which advances until the carrier 4 is bent at a right angle to the pin 2. After bending the carrier 4 until it is perpendicular to the pin 2, during the backward stroke of the bending/cutting head 7b, the carrier 4 is bent back again by the guide/unbending body 11 until it is on a straight line with the pin 2. The present invention provides a bending and cutting device characterized in that the forward and backward strokes 7a are repeated a required number of times.

(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. The guide body 5b, which fixes the perforated part 1b into which two rows of pins 2 with carriers 4 attached thereto are inserted, has a through hole 17 in its side wall 16, and the carrier 4 is attached to the through hole 17 in the side wall 16 of the guide body 5b. The side pin 2 is passed through the side wall 16, and the opening edge surface of the through hole 17 of the side wall 16, which has a wall thickness of approximately 1/2 of the length of the protruding pin 2, is brought into contact with or close to the outer surface of the two pins 2. The guide portion 6b for preventing pin bending is supported by the guide portion 6b. The rear end shaft portion of the guide/bending body 11 is slidably inserted into the through holes 18 provided at both ends of the base body 9 of the bending/cutting head 7b which can move forward or backward with respect to the guide body 5b. A coil spring 20 is interposed between the flange 19 provided on the shaft near the front end of the bending-back body 11 and the front surface of the base body 9 . A right-angled bent portion 21 is formed at the front end of the guide-cum-bending-returning body 11 to prevent the pin from bending outward and to enable right-angled bending. l ₁ ) is approximately equal to the length from the side wall 16 of the guide body 5b to the coining part 8 at the boundary between the pin 2 and the carrier 4 (l ₂ in Figure 1), and the length between the inner surfaces of the right-angled bent parts 21 on both sides is approximately the same. The distance (L ₁ in Figure 1) is 2
It is set slightly larger than the distance between the outer surfaces of the body pins 2 (L ₂ in Figure 1). A guide body 5b in which the inner surface of the right-angled bent portion 21 supports approximately 1/2 of the outer surface of the pin 2 protruding from the perforated part 1b.
The guide portion 10 supports the remaining portion not supported by the pin bending prevention guide portion 6b. A pair of secondary folding bodies 15 are integrally protruded from the center of the front surface of the base body 9, and a primary folding body 14 having a tapered portion 12 at its tip is connected to the tapered portion 1.
The coil spring 22 is inserted between the secondary bent bodies 15 in a state in which the base body 9 protrudes forward, and a coil spring 22 is interposed 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 14 are relatively slidable. The bending/cutting head 7b is moved forward with respect to the fixed guide body 5b, and the guide portion 10 of the guide/bending/returning body 11 is supported against the outer surface of the pin 2. Next, the bending/cutting head 7b is further advanced to bring the tapered part 12 of the primary folding body 14 into contact with the inner edges of the two carriers 4 (see FIG. 2). The head is further advanced and the carrier 4 is bent by the pressure of the primary bending body 14 to the same angle as the taper angle (see FIG. 3). At this time, since the pin 2 is supported by the side surface on the side to be bent by the guide portion 10 of the guide/bending body 11, the pin 2 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 14, the load increases and the primary bending body 14 does not advance any further, and when the bending and cutting head 7b is further advanced, the coil spring 22 is compressed and the secondary bending body 14 is bent. The folding body 15 slides relative to the primary folding body 14 and moves forward. This bending body 15 bends the carrier 4 until it is at a right angle, at which point the bending and cutting head 7b stops its forward movement (see FIG. 4). Although it varies depending on the material of the carrier 4, most of the carrier 4 is almost cut when bent to this right angle position, but even if it is not cut, it becomes very brittle. Next, the bending/cutting head 7b moves to a backward stroke, and when the guide/bending/returning body 11 retreats, its right-angled bending portion 21 returns the carrier 4, which has been bent at right angles, to its original state, that is, in a straight line with the pin 2. Bend it so that it becomes At this time, an inward bending force should also act on the pin 2, but since the coining part 8 that connects the pin 2 and the carrier 4 is extremely fragile, the bending force acting on the pin 2 is very small. 2 almost never bends. Therefore, the space between the two pins 2 can remain as is, and there is no need to provide the guide portion 6b for preventing pin bending. By repeatedly moving forward and backward several times, the bending cutting head 7b can 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 bending process, and Figure 3 is a diagram of the state immediately before the start of the bending process. FIG. 4 is a state diagram at the end of the bending process by the secondary bending body. FIG. 5 is a perspective view of a double-row pin connector, etc., which is targeted by the present invention, 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 carrier cutting. FIG. 8 is a diagram showing a state in which a single row pin connector or the like is bent and cut by a conventional device, and FIG. 9 is a diagram in which a two row pin connector or the like is bent and cut by a conventional device. 1a, 1b... Hole parts, 2... Pins, 3a, 3
b...Connector, etc., 4...Carrier, 5a, 5b...
Guide body, 6a, 6b... Guide part for preventing pin bending, 7a, 7b... Bending/cutting head, 8... Coining part, 9... Base body, 10... Guide part, 11... Guide/bending return body, 12... Taper part, 13 ...Gap, 14...Primary folded body, 15...Secondary folded body, 16
...Side wall, 17...Through hole, 18...Through hole, 19...Flame, 20...Coil spring, 21...Right angle bent part, 22
...Coil spring.

Claims (1)

[Claims] 1 Consists of a guide body into which two rows of pins are inserted to set the perforated parts, and a bending and cutting head which is placed opposite to this and whose base moves forward or backward with respect to the guide body. A pin bending prevention guide part that can support a fraction of the outer surface of the two pins on the carrier 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 carrier attachment side. A guide-cum-bending body that has a guide part that can support the remaining part that is not supported by the prevention guide part and is slidably attached to the base body, and a tapered part at the tip. After the guide-cum-bending body is set to support the pin, the primary bending body enters the gap between the two carriers and moves forward until the two carriers are bent outward by a required angle; After the bending body bends the carrier at a required angle, it slides along the outer surface of the primary bending body, collides with the carrier bent at the required angle, and further bends the carrier at right angles to the pin. A secondary bending body is provided, which moves the carrier forward until the bending and cutting head moves forward until the carrier is perpendicular to the pin. The folding and cutting device is characterized in that the carrier is bent in the opposite direction by the body until it is aligned with the pin again, and this forward and backward stroke of the bending and cutting head is repeated a required number of times.