JPS6355193B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an automatic method for manufacturing a pressure welding type electric harness or a continuous body of the harness, in which one or more pressure welding connectors are connected to a group of electric wires of a predetermined length at a predetermined interval. The present invention relates to a connector sorting and feeding device in a pressure welding machine.

A pressure welding type electrical harness is formed by pressure welding one or both ends of a group of wires cut to a predetermined length, and a pressure welding connector is connected to the middle part of the wire group (this type of connection is called a through connection). It is used in various connection modes, such as a press-contact type electric harness or a press-contact type electric harness that is a combination of these. Therefore, in an automatic pressure welding machine that manufactures many types of pressure welding electrical harnesses using pressure welding connectors with different connection modes and numbers of pins, it is necessary to select a desired pressure welding connector from among several types of pressure welding connectors with different numbers of pins. It is necessary to supply it to the pressure welding device.

An object of the present invention is to provide a connector sorting and feeding device that can automatically select a pressure welding connector with a desired number of poles from among several types of pressure welding connectors with different numbers of poles and supply the same to the pressure welding device. .

The connector sorting and feeding device of the present invention includes a pressure welding punch and a pressure welding die that are arranged vertically opposite to each other across a wire transfer path extending in a substantially horizontal direction, and a pressure welding punch and a pressure welding die that are provided adjacent to and independently A predetermined number of contact pins of the press contact die are supplied to the press contact die of the press contact device having an operating wire cutting blade, and a predetermined number of pins corresponding to the press contact connector are supplied from among the group of wires continuously fed out from a large number of wire supply reels. Supplying a group of electric wires between the pressure welding punch and the pressure welding die,
Due to the cooperative action of the pressure welding punch and the pressure welding die,
An automatic pressure welding machine configured to pressure-connect the pressure welding connectors to the predetermined group of electric wires includes a plurality of parts feeders that feed the pressure welding connectors in a fixed posture, and several types of pressure welding connectors with different numbers of poles. a chute that has a plurality of guide grooves for feeding in sections and is provided so as to be movable laterally; a transfer chute that transfers a pressure welding connector from the parts feeder to one of the guide grooves of the chute; A distribution chute that separates one or several insulation displacement connectors that are connected to the predetermined wire group in one insulation displacement process from among the insulation displacement connectors sent out through the guide groove, and the insulation displacement connectors that are separately housed in the distribution chute. It is characterized by comprising a pusher for extruding and supplying it to the pressure welding die.

Embodiments of the present invention will be described below based on the drawings. 1 and 2 schematically show an automatic pressure welding machine equipped with a connector sorting and feeding device according to the present invention. The automatic pressure welding machine includes a pressure welding device 11 that pressure-connects a pressure welding connector 3 to a predetermined wire group 2A supplied along a wire transfer path W extending substantially horizontally, and a pressure welding device 11 that supplies a predetermined pressure welding connector 3 to the pressure welding device 11. Selects the predetermined wire group 2A to be connected to the pressure welding connector 3 from among the wire groups 2 continuously fed out from the connector sorting and feeding device 12 (see FIG. 2) and the multiple wire supply reels 4... Wire sorting and feeding device 13 that feeds the wire to the pressure welding device 11 and the pressure welding device 11
Wire group 2A connected to insulation displacement connector 3 at
and a wire side length transfer device 14 which holds the wire and intermittently transfers the wire along the wire transfer path W by a predetermined length together with the pressure contact connector 3.

As shown in FIGS. 1 and 3, the pressure welding device 11 includes a pressure welding punch 21 and a pressure welding die 22 that are arranged vertically opposite to each other across the wire transfer path W, and a pressure welding die 22 that is adjacent to the pressure welding punch 21 and the pressure welding die 22. The electric wire cutting blade 26 is provided and operates independently.

As shown in FIGS. 1 and 2, the wire sorting and feeding device 13 continuously feeds out the wires from a large number of wire supply reels 4, and connects the wires to the wire concentrator 5 and the strainer 6.
A chuck 91 that guides and feeds the wire group 2 supplied through the wire transfer path W along the wire transfer path W and clamps and fixes the wire group 2; A predetermined wire group 2A connected to the connector 3 is released, and a selection chuck 92 that clamps and fixes the remaining wire group, and a pressure welding device 1
1, and the electric wire group 2
and a wire guide 93 that guides the wire along the wire transfer path W to the pressure contact position. The electric wire guide 93
is connected and supported by the chuck 91 via a connecting rod 97.

The wire length measurement and transfer device 14 has a movable chuck 115 that reciprocates along the wire transfer path W, as shown in FIGS. 1 and 2. The movable chuck 115 connects the wire group 2 from the lateral side of the wire transfer path W.
A can be held and transferred along the wire transfer path W, and can be stopped at any position.

Therefore, when starting the pressure welding work, each guide groove 9 of the chuck 91, the sorting chuck 92, and the wire guide 93 is
4, 95, and 96 to the pressure welding device 11, when the tip portion of the wire group 2 is guided and fed to the pressure welding device 11 through the pressure welding device 11, as shown in FIG. Cutting blade 2
It is trimmed by 6. Next, air cylinder 10
1 (see FIG. 1) is activated, and with the presser plate 100 pressing the entire wire group 2, the chuck 91, the sorting chuck 92, and the wire guide 93 are moved slightly backward along the wire transfer path W by the air cylinder 98. The ends of the wire group 2 that have been trimmed are pulled back to the pressure contact position (see FIG. 3b). continue,
The sorting blade 102 of the sorting chuck 92 is actuated by the grooved drum 103, and the remaining electric wires except for the predetermined electric wire group 2A to be connected to the pressure-connecting connector 3 are pressed by the press claw 104 to stop feeding. In this state, the selection chuck 92 is further moved back by the engine cylinder 99. the result,
Of the wire group 2, only the wires that are pressed and held in the state where feeding is stopped are further retreated and removed from the pressure contact position, and only the predetermined wire group 2A is arranged in the pressure contact position. During this time, the cutting blade 26 returns to its original raised position. After that, the pressure welding die 22 of the pressure welding device 11 rises to the pressure welding position and connects the predetermined wire group 2.
The end of A is connected to the pressure connector 3 (see Figure 3c).

As mentioned above, the pressure welding connector 3 is connected to the predetermined wire group 2A, and the pressure welding punch 21 and the pressure welding die 22
when they move away from each other vertically and return to their original positions,
The movable chuck 115 moves to the pressure contact position and clamps the wire group 2A to which the pressure contact connector 3 is connected (see FIG. 3d). At this time, the air cylinder 101 of the chuck 91 is activated and the presser plate 10 is pressed during the pressure welding process.
0 to release the wire group 2 that was pressed and held.
In this state, the movable chuck 115 is connected to the wire transfer path W.
The electric wire group 2A is pulled out together with the pressure welding connector 3 by a predetermined length from the pressure welding device 11, and stopped at a predetermined position. Thereafter, the air cylinder 101 of the chuck 91 is operated again to press and hold the wire group 2 with the holding plate 100, and the chuck 91 and the movable chuck 115 hold the wire group 2A in a tensioned state. Subsequently, the pressure welding device 11 is operated, and the next pressure welding connector 3 is connected to the wire group 2A by pressure contact (see FIG. 3e).

Furthermore, in the same manner as above, after holding the wire group 2A with the movable chuck 115 and pulling it out by a predetermined length,
The third insulation displacement connector 3 is press-connected to the wire group 2A (see FIG. 3f). Next, moveable chuck 1
15 is connected to the insulation displacement connector 3, clamps the wire group 2A, and pulls out the insulation displacement connector 3 to a position where the left side surface is slightly away from the wire cutting blade 26. In this state, the cutting blade 26 is activated. to cut the wire group 2A (see Fig. 3g).

As shown in FIG. 4A, the above-described series of press-connecting operations completes the press-contact type electrical harness 7 in which the press-contact connectors 3 are connected to both ends and intermediate positions of the wire group 2A of a predetermined length.

Also, in the same manner as above, as shown in FIG. 4b,
As shown in FIG.
A double-end pressure welding electrical harness 72 with pressure welding connectors 3 connected only to both ends of A, and as shown in FIG. 4d,
Various pressure-contact type electrical harnesses such as a single-end pressure-contact type electrical harness 73 in which the pressure-contact connector 3 is connected to only one side of the wire group 2A and the other end is left free can be obtained.

Furthermore, by repeating the pressure welding steps shown in FIGS. 3e and 3f, a continuous body of pressure welding type electric harness can be manufactured in which a large number of pressure welding connectors 3 are connected to a long continuous wire group 2A at predetermined intervals. is also possible.
Such a harness continuum is wound on a winding device, but it is collected and stored in a tray etc., and during wiring work, the wire group 2A of the harness continuum can be cut at an arbitrary position. Therefore, it has the advantage that various press-contact type electric harnesses with different connection modes can be easily obtained.

Next, the connector sorting and feeding device 12 that supplies predetermined pressure-welding connectors 3 to the pressure-welding die 22 of the pressure-welding device 11 described above will be described.

The connector sorting and feeding device 12 is shown in FIGS.
As shown in the figure, there are two parts feeders 41, 41 that feed the pressure welding connector 3 in a fixed posture.
, a chute 43 provided with a plurality of guide grooves 44 for separately feeding several types of pressure welding connectors 3 with different numbers of poles, and a chute 43 provided with a plurality of guide grooves 44 for separately feeding several types of pressure welding connectors 3 with different numbers of poles;
A transfer chute 45 for transferring the connectors to the transfer chute 45 and one or several pressure welding connectors 3 to be pressure welded to the wire group 2A in one pressure welding process are separated from the pressure welding connectors 3 sent out from the lower end of the guide groove 44 of the chute 43. and a distribution chute 46 for supplying the pressure welding die 22 of the pressure welding device 11 to a predetermined position.

The parts feeders 41 and 42 are mounted on a base 49 via a mounting base 47 and a sliding shaft 48 on which they are mounted.
from one parts feeder 41 to a chute 43 through a transfer chute 45.
When the pressure welding connector 3 is being fed into the predetermined guide groove 44 of the parts feeder 42, the pressure welding connector 3 to be used for the next pressure welding operation is stored and prepared in the other parts feeder 42, and the mounting base 47 is moved laterally to feed the pressure welding connector 3 to the parts feeder 42. Simply by aligning the delivery port 42 with the transfer chute 45, the next pressure contact connector 3 can be delivered immediately. The mounting base 47 is an air cylinder 50
It is moved laterally by

As shown in FIGS. 5, 6, and 7, the chute 43 has support legs 51 protruding from its bottom on both sides.
is slidably supported in a guide groove 53 horizontally suspended on the base frame 52, and mounted so as to be horizontally movable with respect to the base frame 52. Also, the bottom of the chute 43 has a female threaded body 5.
4 is fixed, and the female screw body 54 is attached to the base frame 52.
A feed screw shaft 55 horizontally mounted in parallel with the guide shaft 53
A pinion 57 and a gear 58 are driven by a pulse motor 56 with a feed screw shaft 55 attached to the base frame 52.
By rotating the chute 43 through
is configured to be moved laterally. Then, the chute 43 is moved laterally to form the desired guide groove 4.
The upper end of 4 faces the transfer chute 45, and
The chute 43 is stopped at a position where the lower end of the guide groove 44 faces the distribution chute 46, and the press-contact connector 3 fed from the parts feeder 41 or 42 is fed from the transfer chute 45 through the guide groove 44 to the distribution chute 46. Pressure welding connectors 3 having different numbers of poles are housed in each guide groove 44 in advance, and the guide groove 44 is selected by detecting the number of poles of the connectors to be press-welded using a phototube or other sensor (not shown). ing.

Furthermore, as shown in FIG. 5, the transfer chute 45 has a structure that can be moved around a pivot shaft 59 to the position shown by the imaginary line, and the chute 43 selected as described above can be guided through the transfer chute 45. When the number of poles of the insulation displacement connector 3 fed into the groove 44 is different from the number of poles of the insulation displacement connector 3 accommodated in the guide groove 44 in advance, this is detected by a phototube or other sensor and the transfer chute 45 is virtualized. It is designed to tilt and displace to the position of the line, and discharge the dissimilar connectors out of the machine. 60 in the figure is a transfer chute 45
61 is the transfer chute 4
This is a stopper that operates in conjunction with the displacement of the connector 5 to the position indicated by the imaginary line, and is intended to prevent the subsequent connector from falling off.

As shown in FIGS. 6 to 8, the chute 4
A stopper 62 is provided near the lower end of each of the guide grooves 44 for preventing the pressure contact connector 3 accommodated in the guide groove 44 from falling off. The stopper 62 is fixed to the upper connecting plate 64 of two support rods 63, 63 which are slidably installed in the vertical direction on both sides of each guide groove 44. The lower ends of both support rods 63, 63 are also connected by a connecting plate 65, and the connecting plate 65
and the bottom of the chute 43, each support rod 63
The stopper 62 is urged downward by a spring 66 inserted in the guide groove 44, and its tip is inserted into and engaged with the top opening of the insulation displacement connector 3 located at the lowest end of the guide groove 44, thereby preventing the insulation displacement connector 3 from falling off due to natural fall. is being prevented. In the drawings of FIGS. 7 and 8, only one stopper 62 is shown in order to avoid complexity and simplify the explanation, but the same applies to the vicinity of the lower end of the other guide grooves 44. A stopper 62 is provided.

On the other hand, a stopper release air cylinder 67 is disposed below near the tip of the distribution chute 46 so that the chute 43 can be moved laterally to the predetermined guide groove 44.
is positioned opposite the distribution chute 46, the piston rod 68 of the air cylinder 67 pushes up the connecting plate 65, moves the stopper 62 of the guide groove 44 upward, and the stopping action by the stopper 62 is released. There is.

As best shown in FIG. 9, the distribution chute 46 has one end pivotally supported by a fixed machine frame 70 via a pivot shaft 69, and the distribution chute 46 is guided by an air cylinder 71. It is displaced between an inclined position facing the groove 44 and a horizontal position where the chute groove bottom surface 72 is located on substantially the same plane as the receiving surface 73 of the pressure welding die 22 in the lowered position. A stopper 74 is also provided which projects into the guide groove of the distribution chute 46 when it is in the inclined position.
The stopper 74 is disposed so as to be movable in the longitudinal direction of the distribution chute 46 by an appropriate means as shown by the arrow, and the pressure connector 3 is fed to the distribution chute 46 through the guide groove 44 of the chute 43.
The stop position by the stopper 74 can be adjusted according to the total length of the stopper 74. With this configuration, only the pressure welding connectors 3 to be connected to the predetermined wire group 2A are supplied to the distribution chute 46 in one pressure welding process, and the subsequent pressure welding connectors 3 are released from being pushed up by the air cylinder 67. It is stopped by a stopper 62.

On the other hand, a pusher 75 is provided on an extension of the distribution chute 46 in a horizontal position. The pusher 75 is disposed so as to be slidable in the horizontal direction along a guide groove 76 extending horizontally on the fixed machine frame 70, and is caused to reciprocate in the horizontal direction by an air cylinder 77.
and the distribution chute 4 in the horizontal position when moving forward.
Push out the pressure welding connector 3 in the pressure welding die 22.
is supplied to a predetermined position on the receiving surface 73 of.

In order to reliably supply the insulation displacement connector 3 to a predetermined position on the receiving surface 73, on the side opposite to the pusher 75, above the insulation displacement connector 3 that is inserted and supplied by the pusher 75 on an extension of the distribution chute 46 in a horizontal position. an upward regulation rod 78 that regulates the
A lateral restriction rod 79 is provided to restrict the side in the insertion direction. The upper restriction rod 78 is fixed to the slider 80. The lateral regulating rod 79 is horizontally slidably inserted through the slider 80 and is connected to the pressure welding die 22 by a spring 82 interposed between the slider 80 and a spring receiver 81 fixed at an intermediate position of the rod 79. It is biased to protrude to the side.
A stop plate 83 is fixed to the rear end of the rod 79. The slider 80 is slidably attached to a guide shaft 84 horizontally suspended on the fixed machine frame 70', and is attached to a link 8
5. It is designed to be reciprocated in the horizontal direction along the guide groove 84 by an air cylinder 88 via a swing arm 86 and a connecting link 87.

Upper restriction rod 78 and side restriction rod 79
Before the pusher 75 moves forward, the pusher 75 protrudes to the position shown by the solid line in FIG. 9 and waits.
The upward movement and insertion direction of the pressure welding connector 3 which is pushed out from the distribution chute 46 and supplied onto the receiving surface 73 of the pressure welding die 22 is regulated by the advancement of the pressure welding die 22 . When the end face of the pressure welding connector 3 comes into contact with the side regulating rod 79 as the pusher 75 moves forward, the rod 7
9 retreats against the spring 82, the pressure contact connector 3 is inserted to a predetermined position on the receiving surface 73 while being sandwiched between the pusher 75 and the side regulating rod 79. Therefore, if the most advanced position of the pusher 75 is adjusted to match the connector insertion reference position, the pressure connector 3 can be accurately supplied to a predetermined position on the receiving surface 73. The pressure welding connector 3 is the receiving surface 73
When the pusher 75 is supplied to a predetermined position, the pusher 75 stops, and then the upper restriction rod 78 and the side restriction rod 79 retreat. After that, the pusher 75 is moved back to prepare for the next process.

As explained above, the connector sorting and feeding device of the present invention can automate the sorting and feeding of many types of pressure welding connectors with different numbers of pins, has a relatively simple sorting mechanism, is less likely to malfunction, and can be easily controlled by a computer. It has easy characteristics. Therefore, it is suitable for automatic pressure welding machines that manufacture various pressure welding electrical harnesses with different connection modes and numbers of electric wires.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a schematic explanatory diagram of an automatic pressure welding machine equipped with a connector sorting and feeding device according to the present invention, FIG. 2 is a plan view of the same, and FIG.
The figure is an explanatory diagram of the same pressure welding machine process, Figure 4 is a plan view of a pressure welding type electric harness with different connection modes manufactured by the same automatic pressure welding machine, Figure 5 is a schematic explanatory diagram of the connector sorting and feeding device, Figure 6 is a partially enlarged vertical front view of the main part, Figure 7 is a view taken along line 7-7' in Figure 6, and Figure 8 is a view taken along line 8-8' in Figure 6. 9 are partially enlarged longitudinal sectional front views of the same feeding portion. 2...Electric wire group, 2A...Predetermined electric wire group, 3...
IDC connector, 4... Wire supply reel, 7, 7
1, 72, 73...Electric pressure welding harness, 11...
Pressure welding device, 12... Connector sorting and feeding device, 13
... Wire sorting and feeding device, 14 ... Wire length measurement and transfer device, 21 ... Pressure welding punch, 22 ... Pressure welding die, 2
6... Wire cutting blade, 41, 42... Parts feeder, 43... Chute, 44... Guide groove, 45...
...Transfer chute, 46...Distribution chute, 75...
... Pushya, 78... Upward regulation rod, 79...
Lateral regulation rod.

Claims (1)

[Scope of Claims] 1. A pressure welding punch and a pressure welding die that are arranged opposite to each other across a wire transfer path extending in a substantially horizontal direction, and a wire cutting blade that is provided close to the pressure welding punch and the pressure welding die and that operates independently. supplying a pressure welding connector with a predetermined number of poles to the pressure welding die of the pressure welding device having a
On the other hand, a predetermined group of wires corresponding to the pressure welding connector among the groups of wires continuously fed out from a large number of wire supply reels is supplied between the pressure welding punch and the pressure welding die, and the cooperative action of the pressure welding punch and the pressure welding die is performed. According to the present invention, an automatic pressure welding machine configured to pressure-connect the pressure welding connector to the predetermined group of electric wires includes a plurality of parts feeders that feed the pressure welding connector in a fixed posture, and several parts feeders having different numbers of poles. a chute that has a plurality of guide grooves for feeding the pressure welding connectors in sections and is provided so as to be movable laterally; and a transfer chute that transfers the pressure welding connectors from the parts feeder to any one of the guide grooves of the chute. a distribution chute that separates one or several insulation displacement connectors that are connected to the predetermined wire group in one insulation displacement process among the insulation displacement connectors sent out through the guide groove of the chute; A connector sorting and feeding device comprising: a pusher for pushing out the pressed connectors and supplying them to the press die. 2. When the transfer chute is provided so as to be able to be separated from the guide groove of the opposing chute, and the type of pressure welding connector fed through the transfer chute is different from the pressure welding connector previously accommodated in the guide groove. 2. The connector sorting and feeding device according to claim 1, wherein the transfer chute is configured to be separated from the guide groove to remove the different types of pressure-welding connectors.