JPS635191Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector leg processing device used in an automatic connector insertion device that automatically inserts a connector into a predetermined insertion hole of a substrate such as a printed circuit board.

The connector is a small electronic component having a shape approximately as shown in FIGS. 1a, b, and c, and consists of a main body 1 and a plurality of legs 2 and 3 (with vertical conduction) provided at the top and bottom. The number of legs 2 and 3 is often 2 to 10. The length in the longitudinal direction varies depending on the number of legs 2 and 3.

When fixing a connector to a printed circuit board, etc., after inserting the legs 3 of the connector into the board, a part of the legs 3 protruding from the back side is bent and deformed to prevent it from coming off. If the length is too long, the printed circuit board may bend, making it difficult for the legs 3 to fit into the insertion holes, preventing smooth insertion and impairing workability.

The present invention eliminates the above-mentioned drawbacks of the conventional method by providing board receiving pieces on both sides of the bending piece in close proximity to the bending piece, which can protrude beyond the bending piece. It is an object of the present invention to provide a connector leg processing device that can prevent the connector leg from slipping, perform smooth insertion, and perform reliable locking.

In the present invention, the legs of a connector inserted into a substrate such as a printed circuit board that is supported in a predetermined position by a support member have a pair of inclined surfaces at the tips that are inclined in opposite directions, and are perpendicular to the substrate. In a connector leg processing device that fixes a connector by bending a bending piece that is capable of reciprocating movement toward and away from the board, the board receiving piece is movable back and forth in parallel with the movement of the bending piece and relative to the bending piece. This connector leg processing device is characterized in that it is provided on both sides of the bent piece, close to the bent piece, and capable of protruding beyond the tip of the bent piece.

The present invention will be explained with reference to the drawings based on examples.

In FIGS. 2 and 3, reference numeral 141 is a connector leg processing device provided on the back side of the printed circuit board 6, which pushes the connector 4, which is held by the holding claws 119 and 120 and descends, with the push rod 103 into the insertion hole. The lower end of the leg 3 inserted into the connector 142 is bent to form a retainer, and the connector 4 is connected to the printed circuit board 6.
It was designed to be fixed at . The printed circuit board 6 is supported at a predetermined position by a support member.

Lifting guide 14 provided on the foundation base 143
4, a lifting block 145 is slidably supported, and by pushing a shaft 148 via a lever 147 by a cylinder 146, the lifting block 14 can be moved.
5 goes up and down. The shaft 148 is rotatably supported by a bearing 149 and rotated by a piston 151 with a rack of a cylinder 150 via a pinion 152 . The racked piston 151 is stroke limited and the shaft 148 rotates through a range of 90 degrees.

A sleeve 153 is attached to the tip of the shaft 148 so as to be slidable in the axial direction, and is adapted to be slid by a cylinder 154 via a lever 155 . A pair of board receiving pieces 156 are provided at the tip of the sleeve 153.
is provided.

Bent pieces 157 and 158 are attached to the tip of the shaft 148 with pins 159.

At the tips of the bent pieces 157, 158, there are a pair of inclined surfaces 160, which are inclined in opposite directions to each other, as shown in FIG. 4a.
It has 161. The inclined surfaces 160 and 161 are the sixth
As shown in the figure, they are separated from each other by a distance a, and the outer dimension is b.

On the other hand, the number of legs 3 of the connector 4 may range from 2 to 10, but as shown in Figure 6, in the case of an odd number (5 in this figure), one of the legs 3 is located in the center. do. The width of leg 3 is c, and the width of leg 2 on both sides thereof is d. Further, as shown in FIG. 7, in the case of an even number of legs (six in this figure), the legs 2 are not located in the center. At this time, the internal modulus of the innermost leg 2 is defined as e, and the external modulus of the next leg 2 is defined as f.

At this time, a and b are c<a<e and d<b<f It is chosen accordingly.

The effect will be explained.

As shown in FIG. 4a, the connector 4
9, 120 (FIGS. 2 and 3) and descends to approach the printed circuit board. In this state, both the board receiving piece 156 and the bending pieces 157 and 158 are in the lowered position. Next, as shown in FIGS. 2 and 3, the cylinder 154 is retracted to raise the sleeve 153 and bring the board receiving piece 156 into contact with the back surface of the printed circuit board 6.

Next, the push rod 10 together with the holding claws 119 and 120
3 and insert the leg 3 into the insertion hole 142.
At this time, the printed circuit board 6 receives a downward force from the legs 3, but the board receiving piece 156 counters this force, so the printed circuit board 6 remains flat without being bent and deformed, allowing the legs 3 to be inserted smoothly. be able to.

When the insertion is completed as shown in Figure 4b, cylinder 1
46 (Fig. 2, Fig. 3) and bending piece 1.
57, 158, and as shown in Fig. 4c, leg 3
The connector 4 is bent obliquely by inclined surfaces 160 and 161, and bent in the opposite direction to form a retainer.
is fixed to the printed circuit board 6. In this case, the upward force generated during the bending process is received by the push rod 103 via the main body 1, so that the bending process can be performed reliably.

The legs 2 and 3 are integral and are fixed at a penetrating portion that penetrates the main body 1, but if this fixation is not strong, the groove 139 is made shallower as shown in FIG. 5 and brought into contact with the leg 2, It is preferable that the reaction force caused by bending the legs 3 is not transmitted to the main body 1 but is directly received by the push rod 103 via the legs 2. At this time, the groove 139 is made relatively narrow in order to prevent the leg 2 from falling.

As shown in FIGS. 6 and 7, the position of the bent leg differs depending on whether the leg is odd-numbered or even-numbered. In other words, if the number is odd, the center leg 3 as shown in Figure 6.
is not bent, but the two legs 3 on both sides are bent in opposite directions, and in the case of an even number of legs, the two legs near the center are bent as shown in FIG. If there are two legs that can be bent on one side and one on the other side, the force will be distributed unevenly.
It is preferable to have one leg on each side in both cases, as shown in FIGS. 6 and 7, since the legs on the two sides bend less and the leg will not come off completely. Further, it is preferable to select two bendable legs as close to the center as possible, so that the moment around the vertical axis that occurs during bending can be reduced.

In addition, when bending three or more legs, each part bends due to bending resistance, making it difficult to perform smooth bending, but in this example, regardless of whether the number of legs is odd or even, Since the two symmetrical wires closest to the center can always be bent, the bending resistance is minimized.

The present invention provides a substrate receiving piece that can reciprocate in parallel with the movement of the bent piece and relative to the bent piece.
By being provided on both sides of the bending piece, close to the bending piece, and capable of protruding beyond the tip of the bending piece, deformation of the board is prevented when the connector is inserted;
It is possible to provide a connector leg processing device that performs insertion operations smoothly and reliably, and enables the realization of a high-speed, highly reliable automatic insertion device, which has extremely great practical effects.

[Brief explanation of drawings]

The drawings relate to embodiments of the present invention, and FIGS. 1a, b, and c are front views, side views, and plan views of the connector, FIG. 2 is a vertical cross-sectional front view, and FIG. 3 is a partially cross-sectional side view. , FIGS. 4a, b, and c are longitudinal sectional views showing the processing steps, FIG. 5 is a longitudinal sectional view of another embodiment, and FIG.
FIG. 7 is a side view showing the relationship between the inclined surface and the legs. 1... Main body, 2... Legs, 3... Legs, 4... Connectors, 6... Printed circuit boards, 103... Push rods,
119... Holding claw, 120... Holding claw, 139...
...Groove, 141...Connector leg processing device, 142...
...insertion hole, 143...foundation base, 144...lifting guide, 145...lifting block, 146...
Cylinder, 147...Lever, 148...Shaft, 1
49...Bearing, 150...Cylinder, 151...
Piston with rack, 152...Pinion, 153
...Sleeve, 154...Cylinder, 155...
Lever, 156... Board receiving piece, 157... Bending piece, 158... Bending piece, 159... Pin, 160
... Sloped surface, 161 ... Sloped surface.

Claims (1)

[Scope of utility model registration request] The legs of a connector inserted into a substrate such as a printed circuit board supported in a predetermined position by a support member have a pair of sloped surfaces at their tips opposite to each other, and reciprocate toward and away from the substrate perpendicularly to the substrate. In a connector leg processing device that fixes a connector by bending a bending piece, a board receiving piece that can reciprocate in parallel with the movement of the bending piece and relative to the bending piece is fixed. A connector leg processing device characterized in that it is provided on both sides of a bent piece, close to the bent piece, and capable of protruding beyond the tip of the bent piece.