JPS6346202Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a square pin insertion machine for cutting a square pin wire into a predetermined length and driving it into a board.

Recently, there has been a particular demand for this type of square pin insertion machine to increase the square pin insertion speed. However, many conventional square pin insertion machines are unsatisfactory in terms of speed and tend to have complicated structures.

In view of the above points, the present invention enables square pin insertion by making it possible to perform all operations from cutting the square pin wire to driving the cut square pin into the board with one stroke of the main cylinder that performs the main operation. It is an object of the present invention to provide a square pin insertion machine that is faster in speed and has a simpler structure.

Embodiments of the square pin insertion machine according to the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall configuration of the embodiment. In this figure, a main cylinder 2 and a bent portion 4 of a square pin wire 3 are fixed to the upper part of a main body frame 1. This bending section 4 has a configuration in which a large number of pulleys 5 are arranged in two rows, and is used to correct the bending of the square pin wire 3 from the supply reel around which the square pin wire 3 is wound.

A main slider 10 is connected to the tip of the piston rod of the main cylinder 2, a push rod 11 is fixed to the lower end of the main slider 10, and a slide rod 12 is inserted so as to be slidable in the vertical direction. Here, the main slider 10 is supported by rails 13 so as to be able to freely slide vertically with respect to the main body frame 1, and the upper end of the slide rod 12 is connected to a receiving rod 15 around which a compression spring 14 is arranged with a gap in between. They are now facing each other. The gap defines a delay in the downward movement of the slide rod 12 relative to the push rod 11. Further, the extension spring 16 is connected to the main slider 1.
The extension spring 17 is provided in the direction of pulling up the slide rod 12, and the extension spring 17 is provided in the direction of pulling up the slide rod 12. moreover,
A guide 18 for holding the square pin cut from the square pin wire 3 is fixed to the lower end of the slide rod, and stopper pins 19 and 20 for regulating the amount of movement are provided on the side surface of the slide rod.

On the other hand, on a chuck slider 30 that is vertically slidable with respect to the main body frame 1, there is a chuck 31 for holding the square pin wire 3 passed through the bent portion 4, and a chuck cylinder 34 for driving the chuck. is located. The chuck slider 30 is supported by a rail 13 so as to be slidable in the vertical direction. Further, a position adjustment stopper bolt 38 that defines the upper limit position of the chuck slider 30 is fixed to the main body frame 1, and a feed adjustment bolt 39 that abuts the chuck slider 30 is fixed to the main slider 10.

The cutter mechanism is connected to the main body frame 1 as shown in Figure 2.
It is composed of a fixed cutter 40 fixed to the main body frame 1, and a movable cutter 41 supported slidably in the horizontal direction by a cutter guide 56 with respect to the main body frame 1,
A unidirectional clutch 42 is arranged to press the square pin wire 3 against the guide surface of the fixed cutter 40. This unidirectional clutch 42 is rotatable only in the direction in which the square pin wire 3 descends, and is attached to one end of a lever 43 that is pivotally supported on the main body frame side, and is fixed by an extension spring 44 at the other end of the lever 43. It is biased in the direction of pressure contact with the guide surface of 40. The movable cutter 41 has a square pin receiving groove 45 in the vertical direction, as shown in FIGS. It is pivotally connected via 47. The movable cutter 41 has a recess 48
A compression spring 51 is formed here to urge the square pin presser 46 in the direction of pressing the square pin 50.
will be provided. Further, a cutter cylinder 52 is fixed to the main body frame 1 in order to move the movable cutter 41 forward in the lateral direction. Here, the lower end of the guide surface of the fixed cutter 40 becomes the fixed blade 53, and the upper end of the square pin receiving groove 45 of the movable cutter 41 becomes the movable blade 53.
4, when the movable cutter 41 is moved forward by the cutter cylinder 52, the square pin wire 3 whose tip was inserted into the square pin receiving groove 45 is cut, and a square pin 5 of a predetermined length is inserted into the square pin receiving groove 45.
0 remains. In addition, the extension spring 55
is for returning the movable cutter 41, and the adjustment bolt 57 defines the amount of advance of the movable cutter 41 so that the movable cutter 41 is directly below the push rod 11 in the forward position.

The guide 18 has a structure in which a cover body 61 is attached to a guide main body block 60 with a pin 62, as shown in FIG.
is brought into pressure contact with the main body block 60 side. A square pin guide groove 64 is formed in the main body block 60 in the vertical direction. This square pin guide groove 64 receives the square pin 50 held by the movable cutter 41 as the push rod 11 descends.

Further, the push rod 11 has a tapered surface 65 in the middle of the lower end as shown in FIGS. push rod 11
This allows for reversing during the descending stroke.

Below the guide 18, a printed board 70 into which the square pin 50 is to be inserted is supported by an XY table or the like, and further below the board 70, a board support part 80 is arranged. This substrate support part 80 also has a groove into which the square pin 50 is inserted, and rises in synchronization with the descent of the guide 18 to the upper surface of the substrate to support the lower surface of the substrate.

Next, the operation of the above embodiment will be explained. When the previous square pin insertion operation was completed, the square pin wire 3 was stopped in the square pin receiving groove 45 of the movable cutter 41. In this state, first, the cutter cylinder 52 is actuated to move the movable cutter 41 from the retreated position shown in FIGS.
The main cylinder 2 operates as the main cylinder moves forward in the direction. Therefore, the tip of the square pin wire 3 becomes a square pin 50 cut to a predetermined length, and the movable cutter 4
1 and moves to a position above the guide 18.
At this time, the square pin 50 is pressed against the square pin receiving groove 45 by the L-shaped square pin retainer 46, so that it does not fall off. The push rod 1 is moved forward by the movable cutter 41.
1. The square pin receiving groove 45 and the square pin guide groove 64 are arranged on one straight line, and as shown in FIG. The movable cutter 4 is inserted into the guide groove 64 of the guide 18 during this operation.
1, the square pin retainer 46 is the push rod 1 as shown in Figure 5.
The tapered surface 65 of 1 is opened in the direction of arrow P, and finally, as shown in FIG.
At this point, the cutter cylinder 52 returns and the movable cutter 41 retreats by the force of the extension spring 55. When the main slider 10 descends by a predetermined amount or more, the upper end of the slide rod 12 comes into contact with the receiving rod 15, and as a result, both the push rod 11 and the slide rod 12 lower. Therefore, the guide 18 is lowered to a position very close to the printed circuit board 70 as indicated by the arrow R, and the slide rod 12 is stopped from lowering by the stopper pin 19.
At this point, the board support part 80 has risen as shown by the arrow S, and then the push rod 11 is lowered to move the square pin 50 in the guide 18 onto the board 70 as shown in FIG.
Type in. Almost simultaneously with the start of driving the push rod 11, the chuck cylinder 34 operates and the chuck 31 clamps the square pin wire 3, and the feed adjustment bolt 39 of the main slider 10 hits the chuck slider 30, causing the chuck slider 30 to move in place. Decreases quantitatively. This allows the next square pin wire 3
is supplied into the movable cutter 41. Thereafter, the chuck 31 is released, and the main slider 10 returns to its original position, and the chuck slider 30 also returns to its raised position. In addition, to confirm the insertion of the square pin 50, refer to guide 1.
This is done by detecting the presence or absence of electrical continuity between 8 and the substrate support part 80.

As explained above, in the present invention, the movable cutter for cutting the square pin wire has a square pin receiving groove into which the tip of the square pin wire is inserted, and a square pin retainer that covers at least a part of the square pin receiving groove. The push rod that drives the square pin into the board has a tapered surface that opens the square pin holder, so during the downward stroke of the push rod, the movable cutter is moved back to insert the next square pin wire. You can make it wait. Therefore, the entire operation from cutting the square pin wire to driving the cut square pin into the board can be executed with one stroke of the main cylinder that performs the main operation, thereby increasing the square pin insertion speed. Additionally, it is possible to obtain a square pin insertion machine with a simplified structure.

[Brief explanation of the drawing]

FIG. 1 is a front view showing the overall configuration of an embodiment of the square pin insertion machine according to the present invention, FIG. 2 is a front view showing the cutter mechanism and guide portion, FIG. 3 is a plan view of the same, and FIGS. FIG. 6 is a perspective view showing the movable cutter and the tip of the push rod, and FIG. 7 is a perspective view of the square pin driven into the printed circuit board. 2...Main cylinder, 3...Square pin wire, 4
...Bending section, 10...Main slider, 11...
Push rod, 12...Slide rod, 30...Slider for chuck, 31...Chuck, 34...Cylinder for chuck, 40...Fixed cutter, 41...
Movable cutter, 42... Unidirectional clutch, 45
...Square pin receiving groove, 46 ...Square pin holder, 52
... Cylinder for cutter, 50 ... Square pin, 65
... Tapered surface, 70 ... Printed circuit board, 80 ...
...Board support part.

Claims (1)

[Claims for Utility Model Registration] A main cylinder 2, a main slider 10 operated by the main cylinder, a push rod 11 and a slide rod 12 provided on the main slider, and a guide 18 provided at the tip of the slide rod. , the main slider 10
a chuck slider 30 that is activated when the chuck moves by a predetermined amount, a chuck 31 that is provided on the chuck slider and is capable of holding the square pin wire before cutting, a fixed cutter 40, and the fixed cutter 40. The square pin insertion machine is equipped with a movable cutter 41 for cutting the square pin wire, and the movable cutter 41 has a square pin receiving groove into which the tip of the square pin wire supplied by the downward movement of the chuck 31 is inserted. 45 and a square pin holder 46 that covers at least a portion of the square pin receiving groove, and by forward motion cuts and holds the square pin wire into square pins 50 of a predetermined length and moves to the lower position of the push rod. The push rod 11 executes a downward stroke of pushing down the square pin 50 in the square pin receiving groove 45 and driving it into the board via the guide 18; It is characterized by having a tapered surface 65 that contacts the square pin holder 46 during the downward stroke to open the square pin holder 46 and return the movable cutter 41 to the retreated position to receive the tip of the square pin wire. Square pin insertion machine.