JPS60148078A - Device for inserting wire - 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 The present invention relates to an electric wire insertion device, and more particularly, to an electric wire insertion device that press-fits electric wires into electric terminals arranged at equal pitches in a connector continuously supplied by a conveyor by moving the electric wires at each pitch. This invention relates to a wire insertion device for automatically connecting wires.

As this type of device, a wire insertion device having a structure as shown in FIG. 1, for example, has been known in the past.

That is, this wire insertion device 1 includes a wire insertion blade 2 attached to a reciprocating ram (not shown) driven by a motor, and a wire insertion blade 2 located at a wire insertion position directly below the wire insertion blade 2 and driven by an air cylinder 3. and a connector guide 6 including a pair of parallel side walls 5.5 disposed below the wire insertion blade 2 and adjacent to the wire insertion position.

Further, at the wire insertion position, an elastic wall 8 is biased by the spring 7 in a direction perpendicular to the connector exit path, and under normal conditions forms a passage smaller than the width and thickness of the connector 10 with the opposing wall.
is provided. Further, the connector guide 6, in which a plurality of connectors are arranged side by side, has a spring 9 at the end on the connector supply side.
A pressing rod 11 is provided which is biased by the connector guide 6 and pushes the plurality of connectors 10 supplied into the connector guide 6 along the connector feeding path. The connector 10 pressed by the suppression rod 11 comes into contact with the inclined surface on one side of the elastic wall 8 and is forced to enter the wire insertion position.

The connector 10 located immediately before the wire insertion position is moved against the spring pressure of the elastic wall 8 during each upward movement of the wire insertion blade 2.
It is constructed so that the terminals are moved forward by the feed pawl 4 between the elastic wall 8 and the opposing wall 5, and held at each position by the pressing force of the elastic wall 8.

However, the device having the above configuration has the following drawbacks.

(D) Since the connector guide 6 can accommodate only a certain number of connectors 10, once a certain number of connectors have been connected, the work must be temporarily interrupted to replenish the connectors 10, and the replenishment of connectors is difficult. Replenishment work is troublesome because it involves pushing back the rod 11.

■ Due to the above (■), it is difficult to automate the series of operations from supplying connectors to inserting wires.

(2) Since the electric wire insertion blade 2 and the feed claw 4 are driven by different power sources, it is difficult to determine the timing of both, and the structure of the entire device becomes complicated and large.

■ Since the feed claw 4 is driven by the air cylinder 3, it can only be fed at high speed, resulting in poor workability.

The present invention has been made based on the above-mentioned problems, and provides a wire insertion device that can accurately position the wires at the wire insertion position, continuously supply connectors, perform high-speed wire insertion work, and has a relatively simple structure. The purpose is to

Hereinafter, an example of an actual plane of the present invention will be explained with reference to the accompanying drawings.

FIG. 2 is a partially cutaway perspective view of the wire insertion device of the present invention.

In the figure, a support plate 21 is provided on a substrate 20 at right angles to the substrate 20, and a drive motor 23 is attached to one side of the support plate 21 via a gear box 22 containing a speed reduction mechanism.

The rotation of the driving shaft of the drive motor 23 is decelerated via a deceleration mechanism, and the shaft end (not shown) of the driven wheel that has been decelerated projects from the other side of the support plate 21, and a rotating circle is formed at the shaft end of the driven shaft. A plate 24 is provided.

A projection 25 having a cam surface is provided on a part of the outer periphery of the rotating disk 24, and this projection 25 contacts the operating lever of the microswitch 2G also provided on the side surface of the support plate 21, and turns on the microswitch 26. -Turn it off. This microswitch 26 is electrically connected to the drive motor 23, so that it is repeatedly turned on and off during one revolution of the rotary disk 24, resulting in intermittent operation.

One end of a crank 28 is rotatably attached via a pin 21 to a point a predetermined eccentricity from the axis of the rotating disk 24. A slider 29 is connected to the other end of the crank 28,
The slider 29 is configured to move vertically downward on the kite block 30.

A wire insertion blade 32 is fixed to the lower end of the slider 29 via a positioning and fixing block 31.
engages with the angle 34 on the connector kite 33 provided on the board 20, and serves to cut the supplied electric wire to a predetermined length.

Further, on one side of the slider 29, a protruding pin 36 is provided which is pushed downward by a coil spring 35, and this protruding pin 3G forms an L-shape when descending and engages with one end of a bar 37.

The L-shaped bar 37 is connected to a rotatable shaft 3 provided in a direction orthogonal to the connector kite 33 via a one-way rotation clutch 38.
It is fixed at 9.

A ratchet 41 is attached to this shaft 39, which faces into the connector kite 33 and has a plurality of equally pitched connector feeding pawls 40 formed on its circumference to engage with the rack-like protrusion of the fed connector. There is.

On the other hand, the free end of the arm 37a of the n+1 writing lever 37 is fixed to the base plate 20 by a coil spring 42, as shown in FIG.

The arm 37a of the cursive lever 37 is a stopper 43a.

43I) are interposed between the stoppers 43a, 43
b is fixed to one side plate 33a of the connector kite 33.

Rear side plates 33a and 33b of the connector guide 33
A connector 745 is provided between them. The conveyor 45 is a pulley 4G with toothed surfaces.

47, 48......A toothed endless belt 50 is stretched through an idler 49, etc., and when the surface toothed pulley 46 reaches a specified torque or more, it slips and transfers the power of the drive motor 51 to the belt 50. Torque limiter with no transmission structure (
(not shown).

The connectors are continuously fed onto the conveyor 45 by another parts feeder or the like and fed along the feeding path of the connector guide 33 by the endless belt 50, or the structure of the connector is as follows. ing.

That is, FIG. 4 is a perspective view showing an example of a connector applied to the wire insertion device.

In the figure, a connector 60 has a plurality of terminal receiving holes 63 formed by partition walls 62 provided at regular intervals in an insulating housing 61, and an electrical terminal having a wire receiving slot is arranged in each terminal receiving hole G3. has been done. On one side wall 64 (lower surface in the figure) of the connector 60, a plurality of grooves 65 each having a U-shaped cross section extend from the center of the side wall 64 toward the bottom surface at regular intervals. 41, which engages with the connector feeding claw 40.

Next, the process of inserting an electric wire into a connector using the electric wire insertion device having the above configuration will be explained with reference to FIGS. 5A to 5D.

(2) Connect the connector 60 on the conveyor 45 and insert the electric wire 70 directly below the electric wire insertion blade 32 (FIG. 1A).

(2) When power is turned on to the drive motor 23 using a knot switch (not shown) or the like, the rotating disk 24 rotates, and the slider 29 is lowered via the crank 28 accordingly.

Since a wire insertion blade 32 is provided at the lower end of the slider 29, the wire 70 is sheathed by the insertion blade 32 and inserted into the wire receiving slot of the electrical terminal in the connector 60.

At this time, the connector 60 at the right end of the conveyor 45 is conveyed toward the left end by the drive of the conveyor 45, and arrives at the rear of the connector 60 in which the electric wire is being inserted (FIG. 8).

On the other hand, while the slider 29 is descending, the protruding pin 36 presses the 1-character lever 37, causing the 1-character lever 37 to make a giant turn clockwise. In this case, since the one-way rotating latch 38 is built into the character 1 lever 37, the shaft 39 does not rotate when rotating in the hour 31 direction.
Ratchets 1 to 41 fixed to do not rotate.

On the other hand, the arm of the 1-shaped lever 37 rotates against the spring force of the coil spring 42, and hits the stopper 43a to prevent further rotation.

(2) Next, the rotating disk 24 and the crank 28 rotate further, and the slider 29 enters the ascending process (C in the same figure).

■ In this rising process, the 1-character lever 37 is
Due to the restoring force of Q42, it rotates counterclockwise, contrary to the previous lowering process. This 1-character lever 37 has a ratchet 41 rotated together with a shaft 39 by a one-way rotation clutch 38.
The connector 60 is sent forward by one pitch by the connector feeding pawl 40 of the ratchet 41, and returns to the initial state (D in the figure).

The delivery mechanism of the connector 60 will be further explained with reference to FIG. 6.

In other words, the grooves 65 having a U-shaped cross section of the connector 60 are formed at the same pitch P, and the feed claws 40 for feeding the connector of the ratchet 41 are formed on the circumference at the same pitch P as the grooves 65. The feed pawl 40 enters the groove 65 of the connector 60 as shown, presses the inner wall surface of the bay 65, and rotates counterclockwise in the 1 direction.

Assuming that <A) to <D) in FIG. Corresponding wire insertion blade 3
2 is positioned and fixed by the engagement between the feed pawl 40 and the groove 65 and the feed operation.

In this way, the connector GO is moved intermittently at every - pitch, and when the wires are inserted into all the wire receiving slots, they are pushed by another connector 60 at the rear, and the connector GO is inserted in front of the wire insertion slot. The connector GO with the electric wire inserted is taken out to the outside via the button shooter 52 (see FIG. 3).

Next, FIGS. 7 and 8 show other embodiments of the device of the present invention, of which FIG. 7 is a partially cutaway perspective view and FIG.
A) and (B) are enlarged views of main parts showing the operating state of the feeding mechanism of the connector 80.

Note that the same parts as in the previous embodiment are given the same reference numerals, and detailed explanation thereof will be omitted.

In these figures, the feed claw 70 for feeding the connector has serrated protrusions 71 arranged at the same pitch in the horizontal direction, and these serrated protrusions are formed by a plurality of serrated protrusions 71 provided at regular intervals on one side wall 81 of the connector 80. It is adapted to be able to engage with the protrusion 85.

One end of the feed pawl 70 is pivotally mounted in a recess 74 of the moving member 73 by a pin 71, and the back surface of the feed pawl 10 is brought into contact with a coil spring 75. The right end of the moving member 13 in the drawing is biased toward the left in the drawing by a coil spring 76, and the left end of the moving member 73 is configured to contact the outer periphery of the cam 77.

A 1-shape lever 37 is fixed to the shaft 39 on which the cam 77 is mounted, and one end of this 1-shape lever 37 is connected to the coil spring 42 as in the previous embodiment.

With the above configuration, during the lowering process of the slider 29, the protruding bottle 3G presses one end of the character 1 lever 37, and the character 1 lever 37
At the same time, the cam 77 is rotated clockwise by a predetermined angle. Due to the rotation of the cam 17, the moving member 73 moves horizontally against the coil spring 76, contacts the feed claw 70 or the lower edge of the protrusion 85 of the connector 80, and then moves to the right to move to the next adjacent protrusion 85.
engage with. During the operation of this moving member 73, the electric wire insertion blade 32
lowers and inserts the wire into the wire receiving slot of the electrical terminal of the connector 60.

Next, the slider 29 enters the rising process, and the coil spring 4
The restoring force of 2 causes the 1-character lever 37 to rotate counterclockwise, and at the same time, the cam 77 also rotates in the same direction.

At this time, the moving member 73 receives the spring force of the coil spring 76 and moves to the left in the drawing, and the connector feeding claw 70 moves the connector 80 forward by one pitch.

By repeating the above operation, the connector 60 is sent out one pitch at a time.

As described above, the present invention is configured to move intermittently at each lee pitch by a ratchet or a horizontally moving member having feed pawls for feeding the connector that engage with rack-like protrusions at equal pitches provided on one surface of the connector. The wire insertion work can be performed with high efficiency by reliably and accurately positioning the connector directly below the wire insertion blade and by continuously feeding the connector by the conveyor. Furthermore, the earthwork reciprocating motion of the wire insertion blade and the drive of the connector's feeding claw are skillfully linked and cooperated, and they are driven by a single drive source, so the timing of both can be adjusted as usual. There are no problems such as being difficult to remove.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an outline of a conventional electric wire insertion device, Fig. 2 is a partially cutaway perspective view of an electric wire insertion device showing an embodiment of the present invention, and Fig. 3 is a line ■-■ in Fig. 2. 4 is a perspective view showing an example of a connector for inserting an electric wire using the above device, and FIGS. 5<A), (B), (C) and (D) show the above device. FIG. 6 is a diagram for explaining the connector feeding mechanism. FIGS. 7 and 8 (A) and (B) show other embodiments of the present invention, and FIG. 7 is one of them. FIG. 8 is a partially cutaway perspective view for explaining the connector delivery mechanism. 24...Rotating circular plate 28...Running 29...Slider 32...Wire insertion blade 33
... Connector guide 37 ... Character 1 lever 35 ...
・Coil spring 36...Protruding pin 38...One-way rotation clutch 40, 70...Feed claw 41 for feeding connector...
Ratchet 45... Conveyor 73... Moving member 76... Coil spring @ 5 Figures (A) (B) (C) (D) 2

Claims (1)

[Claims] (1) A connector that has a plurality of electrical terminals with wire receiving slots and a rack-like protrusion on the negative side, a conveyor □ that continuously conveys this connector, and a connector that is installed at one end of this conveyor. a feeding means for moving the connector intermittently every pitch; A wire insertion side L that is cut out from a vertical reciprocating mechanism having a wire pressing means for press-fitting the FFI wire supplied onto the dot section from vertically above (a) The feeding means for intermittently moving the connector is a rotating wheel provided in a direction perpendicular to the direction of movement of the rotating wheel, a letter 1 lever fixed to one end of the rotating wheel via a one-way rotating clutch, a spring that biases the letter 1 lever, and a lever coaxial with the clutch. The wire insertion device according to claim 1, further comprising a ratchet provided in the reciprocating mechanism, and a means for pressing the curved lever that is moved up and down by the reciprocating mechanism. The feeding means for moving the connector includes the feed claw for feeding the connector which is provided horizontally and has a plurality of serrated protrusions, a moving member to which one end of the feeding claw is rotatably pivoted, and a moving member that moves the moving member together. a spring that biases the movable member in the horizontal direction, a cam that abuts one end of the movable member that moves the movable member in the horizontal direction against the spring force h of the spring, and a spring that is provided coaxially with the cam. The electric wire (4) according to claim 1, characterized in that it has a biased L-shaped lever and a pressing means for the L-shaped lever that moves up and down by the reciprocating mechanism.
The vertical reciprocating mechanism consists of a rotating disk rotated by a drive motor, a crank attached eccentrically to this disk,
The electric wire according to any one of claims 1 to 3, characterized in that it has a slider that reciprocates up and down by the rotation of the crank, and a wire insertion blade that is attached to the lower end of the slider. Insertion device.