JPS6218298B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application This invention relates to a transfer device used to transfer a coiled cable to another process in an automatic cable terminal attaching machine.

(b) Prior art The work of attaching metal terminals, or so-called ferrules, to both ends or one end of cables such as optical fiber cables involves feeding out the cable from the supply drum, cutting it to a certain length, and then attaching the sheath at the end of the cable. Remove with a knife or wire stripper, etc.
This is accomplished by applying a series of steps such as applying adhesive to the removed portion, inserting a ferrule, and fixing it by pressure.

Conventionally, although a processing machine may be used in some parts, the series of steps for attaching the ferrule has been mostly done manually.

In the conventional processing method, as shown in Fig. 1, a cable 2 is fed out from a supply drum 1, the required length is adjusted and cut by a cutter 3, and both cut ends are processed at the cut portion. Ferrule 4
There is a way to install it. Also, as shown in Figure 2,
A plurality of cables 2 adjusted to the required length are held near both ends by chucks 5, 5, and processing machines 6, 6 are installed at both ends of each cable 2 according to the length. There is a method of attaching the ferrule 4 after processing both ends of the cable 2.

FIG. 3 shows the completed product, with a spring 7 inserted through the cable 2. This spring 7 is inserted before the ferrule 4 is attached.

(c) Problems to be solved by the invention Conventionally, ferrules were attached using the method described above, which resulted in the problem of low measurement accuracy and the tendency for unnecessary tension to be applied to the cable during measurement or other cable handling. Not only that, but a work space was required depending on the length of the cable. Furthermore, when the cable becomes long, it becomes difficult to handle it, and there is a problem in that overall finish accuracy and work efficiency are low.

(d) Means for Solving Problems The purpose of the present invention is to fully automate a series of processes from cable adjustment to ferrule installation, and the cable transfer, which is one of the important processes, is an object of the present invention.
That is, the object is to provide a device for transferring a coiled cable to the next process.

In order to achieve the above object, the present invention has a pair of left and right rotating shafts mounted on a bearing box that can be lowered freely.The first chuck is attached to a lever fixed to one rotating shaft, and the second chuck is attached to a lever fixed to the other rotating shaft. established,
The levers are connected by a connecting rod, and one lever is connected to an actuator such as an air cylinder attached to a bearing box.

The transfer device configured as described above is capable of gripping the cable with the first and second chucks, and changing the direction of each chuck by actuating the actuator while the bearing box is rising, so that both ends of the cable can be bent in the same direction. It is.

(e) Embodiment [Structure] First, an overview of the entire automatic cable terminal attaching machine will be explained based on FIG.

The equipment for carrying out each process is arranged as follows.

That is, in order from the left end of the figure, the cable supply device 10, the feeding length adjustment device 11, and the cutting guide device 1.
2. Coil removal device 13, first transfer device 14, peeling device 15, spring insertion device 16, adhesive applicator 17, ferrule insertion device 18, caulking device 18
and a second transfer device 19 are arranged, and a transfer jig 2 is disposed between the first transfer device 14 and the second transfer device 19.
0 transport devices are provided. A large number of conveying jigs 20 are attached to the conveying device at regular intervals, and the conveying jigs 20 are installed in order from the first station at the bottom of the first conveying device 14 to the second station to the sixth station corresponding to the peeling device 15 to the caulking device 18. A seventh station is provided below the second transfer device 19, and the transfer device performs intermittent movement in which the transfer jig 20 temporarily stops at each station.

The above cable terminal automatic installation machine is for cable A
After adjusting and cutting it to a certain length, it is wound into a coil in the coil take-up device 13, and transferred to the transfer jig 20 on the first station by the first transfer device 14, and the transfer device is operated. The conveying jig 20 is moved intermittently by, the sheath of both ends or one end of the cable is stripped off at the second station, and the spring is inserted at the third station.
An adhesive is applied to the conductor at the fourth station, a ferrule is inserted at the fifth station, and the ferrule is crimped and fixed at the sixth station. Thereafter, the transfer is made to the second transfer device 19 at the seventh station.

FIG. 5 shows the cutting guide device 12 and the coil take-up section 13 in detail, and the cable A is wound around the coil take-up pin 21 of the coil take-up device 13 (FIG. 6) and tied to the binding string 22. It is tied together. After completing the binding in this way, the guide member 23 is retracted by the operation of the air cylinder 24,
Further, the tip guide member 25 is separated vertically as shown by the chain line, and the coil removal pin 21 is further recessed to make the coiled cable A free. Cable A becomes free in this way
The above-mentioned first transfer device 14 removes the coil from the coil removing device 13 and transfers it to the next process, and is the device that is the object of the present invention.

Note that the coil take-up device 13 has three notches 26 for receiving the chuck of the transfer device 14;
27 and 28 are provided.

Now, as shown in FIGS. 7 and 8, the cable transfer device that is the object of the present invention has vertical frames 3 and 3.
Fix the horizontal frame 31 on top of the horizontal frame 31.
A moving frame 32 is provided at the .

The moving frame 32 is supported by guide rails 33 and 34 provided on the front surface of the horizontal frame 31, and is connected to the horizontal frame 31 via an air-driven slide unit 35. The moving frame 32 includes a guide roller box 36.
A pair of left and right, upper and lower guide bars 37 are fitted into the guide bars 37, and a bearing box 38 is attached to the lower end of each guide bar 37.
In addition, an air cylinder 39 is installed in the bearing box 38.
A piston rod 40 is connected thereto, thereby supporting the bearing box 38 so as to be movable up and down.

As shown in FIG. 9, the bearing box 38 supports two rotating shafts 41 and 42 on the left and right sides, and levers 43 and 44 are connected to each rotating shaft 41 and 42, respectively. A similar gearbox 4 is attached to the levers 43 and 44.
5 is fixed, and each gearbox 45 has a
A pair of gears 46 and 47 as shown in FIG. 10 are provided to mesh with each other, and a rotary actuator 50 is connected to the shaft of one gear 46. Each gear 46, 47 has a rack member 51, 52, respectively.
By providing a pair of front and rear claws 53, 54 on the left and right sides of each rack member 51, 52, a total of two pairs of claws 53, 5 corresponding to one rotating shaft 41 can be formed.
The first chuck 55 consisting of 4, the other rotating shaft 42
A second chuck 56 consisting of a similar combination of claws 53 and 54 is provided correspondingly.

The levers 43 and 44 mentioned above are connected by a rod 57, as shown in FIG. 11, and one lever 44 is connected to a piston rod 59 of an air cylinder 58. Further, the air cylinder 58 is fixed to the bearing box 38 via a bracket 60.

When this air cylinder 58 is driven, the lever 4
Since the chucks 4 and 43 are turned in opposite directions by 90 degrees around the rotating shafts 42 and 41, the first and second chucks 55 and 56 are also turned in the same way.

On the other hand, in the bearing box 38, an L-shaped bracket 61 (the 12th
) is fixed, and a pair of left and right gears 62,
63 are engaged and rotatably provided. A pair of claws 64 and 65 are fixed to each gear 62 and 63, forming a third chuck 66. A piston 68 of an air cylinder 67 is pivoted to one of the pawls 65, and the air cylinder 67 is pivoted to the upper end of the bracket 61. Therefore, when the air cylinder 67 is operated, the gears 62 and 63 rotate, and the claws 64 and 65 approach or move away from each other in a direction perpendicular to the cable A.

The left and right intervals of the first chuck 55, the second chuck 56, and the third chuck 66 are determined by the three notches 26, 27, 2 of the coil taking device 13 described above.
The interval is set to match 8.

Note that the third chuck 66 may be omitted. 70 in FIG. 7 is a shock absorber, and 71 is a stopper.

[Function] Next, the function of the above transfer device will be explained.
The moving frame 32 is moved by the slide unit 35.
is moved above the coil removing device 13, and then the air cylinder 39 is operated to remove the bearing box 3.
8 and lower the first to third chucks 55,5.
6, 66 are the respective notches 26 of the coil removing device 13,
27, 28, and these claws 53, 54, 6
Position cable A between 4 and 65.

Therefore, when the rotary actuators 50, 50 and the air cylinder 67 are operated, each chuck 5
5, 56, and 66 close to grip cable A.
In this state, the air cylinder 39 is actuated to raise the bearing box 38, and during the ascent, the air cylinder 58 is actuated to move the levers 43, 4
4 by 90 degrees, the first chuck 55 and the second
Since the chuck 56 rotates as shown by the chain line in FIG. 13, both ends of the coiled cable A are bent 90 degrees in the same direction. The bent end of the cable A will be processed in a later step and a ferrule will be attached.

(f) Effects Since the transfer device of the present invention is as described above, it is possible to change the direction of the first chuck and the second chuck using a single air cylinder, and this air cylinder can be operated during the transfer. Since the direction of each chuck can be changed by changing the direction of each chuck, the structure is simple and the working time can be shortened.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the conventional manufacturing method, Fig. 2 is an explanatory diagram of another conventional manufacturing method, Fig. 3 is a partially omitted front view of the finished product, and Fig. 4 is an overall view of the automatic cable terminal attaching machine. FIG. 5 is a partially enlarged view, FIG. 6 is a partially sectional view of the coil removal device, FIG. 7 is a front view of an embodiment of the invention, FIG. 8 is a side view of the same, and FIG. 7
Partially enlarged front view of the figure, Figure 10 is X-X of Figure 9
11 is a sectional view taken along line Y-Y in FIG. 9, FIG. 12 is a sectional view taken along line Z-Z in FIG.
FIG. 3 is an explanatory diagram of the direction change between the first chuck and the second chuck. DESCRIPTION OF SYMBOLS 10... Cable supply device, 11... Feeding length adjustment device, 12... Cutting guide device, 13... Coil removal device, 14... First transfer device, 15... Skin stripping device, 16... Spring insertion device , 17... adhesive application device, 18... ferrule insertion device, 19
...Second transfer device, 20...Transfer jig, 30...
Vertical frame, 31... Horizontal frame, 32... Moving frame, 36... Guide roller boxes, 37
...Guide bar, 38...Bearing box, 39...
...Air cylinder, 40...Piston rod, 4
1, 42... Rotating shaft, 43, 44... Lever, 4
5... Gear box, 46, 47... Gear, 50
... rotary actuator, 52, 51 ... rack member, 53, 54 ... pawl, 55 ... first chuck, 56 ... second chuck.

Claims (1)

[Claims] 1 A pair of left and right rotating shafts are provided in a bearing box that can be raised and lowered, a first chuck is provided on a lever fixed to one of the rotating shafts, a second chuck is provided on a lever fixed to the other rotating shaft, and each of the above levers is connected by a connecting rod. A transfer device for an automatic cable terminal attaching machine, which connects one lever and an actuator such as an air cylinder attached to a bearing box.