JPH0373967B2 - - Google Patents

Description

Detailed Description of the Invention "Industrial Application Field" The present invention is directed to a branch wire connecting device (hereinafter referred to as (simply referred to as a connection device).

``Prior Art'' As shown in FIG. 7, the electric wire 49 with branch wires has the tip of the branch electric wire 2 attached to the bare wire portion 47 (the part where the conductor is exposed by peeling off the coating) in the middle part of the main electric wire 1. This electric wire with a branch wire has a shape in which the bare wire portions 47 are overlapped, the two bare wire portions 2 are crimped and connected by a U-shaped crimp piece 31, and a tape wrapping 48 is applied thereon. 4
The forming of 9 includes an intermediate skin stripping process to form a bare wire part 47 in the middle of the main electric wire 1, a crimp connection process of the bare wire part 47 of the main electric wire 1 and the branch electric wire 2, and a tape wrapping 48 on the crimped part. It is formed by a three-step taping process.

This conventional forming means uses an intermediate peeling machine, a crimp connection machine, and a taping machine, which are dedicated processing machines that are independent for each of the three steps.

``Problems to be Solved by the Invention'' In the conventional molding method described above, the three processes are performed as separate and independent processes, so the disadvantages associated with dividing the process are a huge amount of factory space, an increase in the number of man-hours required, and There are many problems with productivity, such as stagnation, transportation, and an increase in work in progress, resulting in extremely poor productivity.

The present invention provides a branch wire connecting device that solves the above-mentioned problems of the prior art.

``Means for Solving the Problems'' The branch wire connection device of the present invention that solves the above-mentioned technical problems has the following features: ``A peeled part where the coating of the middle part of the main wire is peeled off to form a bare wire part; A crimping part that overlaps and crimps the bare wire part and the bare wire part at the end of the branch wire, a taping part that wraps tape around the crimped part, and a telescopic mechanism and a rotating mechanism, and a tip and a transfer hand section having a clamp, and the peeling section, the crimping section, and the taping section are located on the rotational circumference of the transfer hand section and are integrated into a common frame in a three-dimensional configuration, The transfer hand section transfers the electric wire between the stripping section, the crimping section, and the taping section for processing, and connects the branch electric wire to the middle of the main electric wire by crimping.

``Function'' The above-described connecting device of the present invention has the following three steps when crimping and connecting a branch wire to the middle of a main wire: a stripping portion, a crimping portion, and a taping portion, which are rotated by the telescopic and rotatable transfer hand portion. It is located on the circumference, and has a configuration in which the peeling part, the crimping part, and the taping part are integrated in a three-dimensional shape, and the wire is processed by relaying the wire between the processes by the transfer hand part. Therefore, connections between main wires and branch wires can be processed continuously at high speed and with high takt time. Since the device has the above-mentioned integrated structure, it is compact and requires extremely little space, and the telescopic and rotatable transfer hand section can move at high speed through the shortest course between the processes to be transferred. , the time for transferring the wire group is shortened as much as possible.

"Example" Hereinafter, a detailed explanation will be given based on an example. Referring to FIGS. 1 and 2 showing one embodiment, the connecting device of the present invention includes a stripping section 3 that peels off the covering of the intermediate portion of the main electric wire 1 to form a bare wire section, and a stripping section 3 that peels off the covering of the intermediate portion of the main electric wire 1 and a branch. It has a crimp part 4 that receives the bare wire part of the wire group of the electric wire 2 and crimply connects it with a crimp piece, a taping part 5 that wraps the crimp connection part with tape, an expansion mechanism and a rotation mechanism, and , a rod-shaped transfer hand section 6 having a clamp 14 at the tip thereof is arranged in a three-dimensional manner on a common frame 7, and the peeling section 3
The crimping part 4 and the taping part 5 are connected to the transfer hand part 6.
It is located on the rotational circumference of Then, the electric wires 1 and 2 are transferred between the stripping section 3, the crimping section 4, and the taping section 5 using the transfer hand section 6, and are processed respectively to form a structure in which the branch electric wire 2 is connected to the main electric wire 1. It's summery.

Specifically, the transfer hand section 6 is provided on the side of the frame 7 midway in the vertical direction, the peeling section 3 is provided in front of the transfer hand section 6, the crimping section 4 is provided above the transfer hand section 6, and the taping section 5 is provided on the upper side of the transfer hand section 6. They are arranged below the transfer hand section 6 and positioned on the rotational circumference of the transfer hand section 6, and are arranged in such a manner that the wire group can be transferred.

The transfer hand section 6 is a rod extending forward and pivoted on a support shaft 8 fixed at the rear of the frame 7, and a slidable shaft body 11 is supported on a bearing 10 on a base plate 9 and is moved in the front and rear direction. A transfer arm 12 is provided protruding from the front end of the shaft body 11.
A clamp arm 13 is formed in an L-shape at the tip of the transfer arm 12, and a pair of clamps 14R14L are attached below the clamp arm 13. This clamp 14 is provided with an L-shaped hook 16 that opens downward and is operated by a mini cylinder 15.
The group of electric wires is held between the ends 16' of the wires 6 and transferred between the stripping section 3 and the crimping section 4 and between the crimping section 4 and the taping section 5. That is, the transfer hand section 6 has an expansion and contraction mechanism that freely expands and contracts in the longitudinal direction by an air cylinder 17 on the lower surface of the substrate 9, and also has an expansion and contraction mechanism that freely expands and contracts in the longitudinal direction by an air cylinder 17.
It rotates freely and stops at any position by the operation of the air cylinder 18 provided in the left and right hooks 1.
With 6R16L, connect two groups of wires as shown in Figure 2.
It has a rotation mechanism capable of point-clamping and the above-mentioned transfer operation.

On the other hand, the peeling part 3 includes a peeling part 21 provided on the frame 20 and holding parts 22 and 23 on both sides of the peeling part 21, and the peeling part 21 is not inserted. It has a cutting blade 24 that operates in a direction perpendicular to the axis of the main electric wire 1 and a U-shaped detection groove 25, and the peeling part 21 operates in the direction of the axis of the main electric wire 1 in conjunction with the air cylinder 27 below. Can be moved a small amount. and,
The cutting blade 24 cuts only the coating of the main electric wire 1 by the above-mentioned operation and holds the main electric wire 1 as it is, and when the peeling part 21 moves slightly due to the above-mentioned operation, the coating of the main electric wire 1 is removed in the middle part. The wire is divided, and the coating is spread out along the axis from the divided portion to form some bare wire portions. In addition, the holding parts 22 and 23 receive and hold the main electric wire 1 and are equipped with holding claws 29 that are operated by an air cylinder 28 or the like to clamp and fix the main electric wire 1 in order to assist the above-mentioned stripping action. There is. Furthermore, a detection circuit is connected to the detection groove 25 for detecting an incorrect insertion position of the branch electric wire 2 when the branch electric wire 2 is inserted, which will be described later. 26 in the figure is an air cylinder for operating the cutting blade 24.

Next, referring to FIG.
1, and there is a crimping punch 32 directly above the most advanced crimping piece. The crimping punch 32 is attached to a press ram 34 provided on a frame body 33 and moves up and down, and below the crimping punch 32 is a guide groove 3 that guides a group of electric wires into a U-shaped groove of a crimping piece to be crimped.
A guide plate 35 having a diameter of 5' is attached. In addition, there is a wire concentrator 37 in front of the crimping punch 33.
The wire group transferred to the vicinity of the front slope 36 of the guide plate 35 is accurately introduced below the crimping punch 32 so that a smooth crimping connection can be made. That is, the wire collecting mechanism 37 includes a wire collecting plate 41 having a guide slope 42 near the crimping punch 32, and a pin 4 below the wire collecting plate 41.
The air cylinder 38 consists of a concentrator rod 44 pivoted by 5 and is attached to the frame 33.
The crimping punch 32 is connected to a rod 39, and can freely move forward and backward in the direction of the crimping punch 32 as shown by arrow E in the figure. Note that the wire collecting rod 44 is elastically supported by a spring body 43 to avoid interference with the crimping punch 32 and the lower mold during operation. And the line concentrator 37 is the air cylinder 3
8 moves toward the crimping punch 32,
As shown by the dotted lines 37' and 37'' in the figure, the group of wires to be crimped near the guide plate 35 is pushed up by the wire collecting rod 44, and the group of wires is pushed up directly below the crimping punch 32 by the guide slope 42 of the wire collecting plate 41, i.e. It is configured to be guided and concentrated directly above the guide groove 35'.In addition, 40 in FIG. 6 is a support shaft that holds the wire collector plate 41, and 46 is a detection punch that detects defects in the crimping piece 31 before the crimping process. be.

Further, the taping section 5 is a known wire tape winding machine that is composed of a tape supply section having a tape roll 50 and a taping roll 51 having a slot 52 cut from the circumference toward the center, as shown in FIG. When the crimp connection portion of the electric wire 1 and the branch electric wire 2 is inserted into the slot 52, the cut tape is supplied from the tape supply section and the taping roll 5
1 rotates several times and wraps the crimp connection with tape.

The connection device having the above structure operates as follows. That is, with reference to FIGS. 1 and 2, when the main electric wire 1 is manually inserted into the stripping section 3 and turned on, the stripping section 21 performs the above-mentioned operation, and the main electric wire 1 is inserted at an intermediate point. Form a bare wire part. Subsequently, the branch wire 2 (single wire or plural wires) with the end coating peeled off is inserted along with the main wire 1 so that the bare wire portions of both wires are in the same position. At this time, branch wire 2
When the insertion position exceeds the allowable range and comes into contact with the detection groove 25, the detection circuit becomes conductive and a defective insertion signal is transmitted, thereby accurately recognizing the defect. Therefore, the defect is immediately corrected. Subsequently, when the automatic operation switch is turned on, the wire group of the main wire 1 and the branch wire 2 inserted into the stripping section 3 is clamped and fixed by the holding claws 29 of the holding sections 22 and 23, and at the same time, The transfer hand section 6 starts in the direction of the arrow A shown in the solid line in FIG. The group of electric wires being held is clamped from above by clamps 14R14L. Subsequently, at the same time as the holding claw 29 is opened, the transfer hand portion 6'
rotates upward as shown by arrow B while shrinking,
The group of wires is transferred to the crimping section 4 and stopped at the 6'' position shown in the figure, and the clamps 14R14L are released to transfer the group of wires to the crimping section 4. Immediately thereafter, the wire concentrating mechanism 37 performs the above-mentioned operation to transfer the wires. At the same time, the crimping punch 32 descends to connect the bare wire portions of the wire group with the crimping piece 31. At this time, The connection piece 30 of the crimp piece 31 is separated at the same time.

When the above crimping process is completed, the transfer hand section 6, which is waiting at the 6'' position, clamps the wire group again, quickly rotates downward as shown by arrow C, and transfers it to the taping section 5. Transfer and immediately restore to the neutral position.Then, the taping part 5
The group of electric wires passed to , the crimped portions are taped as required, and sent out onto the chute at the rear of the device as indicated by arrow D in the figure, completing the crimping connection of the branch electric wires 2 . During the above operation, the next group of wires is inserted into the stripping section 3, and the transfer hand section 6 starts the next cycle immediately after restoring the neutral position and continues the connection operation continuously. .

In the connection device of the above embodiment, the transfer hand section 6 sequentially moves the stripping section 3, the crimping section 4, and the taping section 5, and transfers the wire group to each processing position for processing, so that the above-mentioned effect is achieved. Therefore, an electric wire with branch wires in which the branch electric wire 2 is crimped and connected to the middle of the main electric wire 1 can be formed continuously with high efficiency.

In particular, this embodiment is provided with a detection groove 25 for detecting initial insertion failure and a wire concentration mechanism 37 for accurately concentrating wires to the crimping part 4, so there is extremely little risk of defective products and operational troubles. Since the operation can be easily monitored, rare process troubles can be quickly corrected.

"Effects of the Invention" As explained above, the branch electric wire connecting device of the present invention can form electric wires with branch electric wires continuously with high efficiency. High productivity is achieved through compact equipment that requires less space.
Furthermore, process integration and continuous molding have the great effect of reducing transportation, stagnation, work in progress, etc. of processed products, and achieving benefits in production management.

[Brief explanation of drawings]

Figure 1: Side view showing one embodiment of the present invention, Figure 2
Figures: Front view of the embodiment in Figure 1; Figures 3 to 5: Enlarged views of the peeling section 3 of the embodiment in Figure 1; Figure 3 is a plan view thereof; Figure 4 is a front view thereof; The figure is from Figure 3.
AA sectional view, Fig. 6: Enlarged side view of the crimping part 4 of the embodiment in Fig. 1, Fig. 7: Explanatory diagram of the shape and processing process of the electric wire with branch electric wire Main symbols, 1: Main electric wire, 2: Branch Electric wire, 3: Stripping part, 4: Crimping part, 5: Taping part, 6: Transfer hand part, 12: Transfer arm, 13: Clamp arm, 14R14L: Clamp, 16R16L: Hook part, 21: Peeling part, 22, 23: Holding part, 24:
Cutting blade, 25: Detection groove, 30: Connection piece (of the crimping piece), 31: crimping piece, 32: crimping punch, 35: Guide plate, 37: Wire concentration mechanism, 41: Wire concentration plate, 44: Wire concentration rod, 47: Bare wire part, 48: Tape wrapping, 49:
Electric wire with branch wire, 50: tape roll, 51: taping roll, 52: slot.

Claims (1)

[Claims] 1. A stripped part where the coating of the middle part of the main electric wire is peeled off to form a bare wire part, a crimp part where the bare wire part of the main electric wire and the bare wire part of the end of the branch electric wire are overlapped and crimped and connected; It consists of a combination of a taping part that wraps a tape around the crimped part, and a transfer hand part that has an expansion and contraction mechanism and a rotation mechanism and has a clamp at the tip, and the peeling part, the crimping part, and the taping part are The electric wire is located on the rotational circumference of the transfer hand section and is integrated into a common frame in a three-dimensional configuration, and the transfer hand section transfers the electric wire between the stripping section, the crimping section, and the taping section. A branch electric wire connecting device characterized by a structure in which a branch electric wire is processed and connected to the middle of the main electric wire by crimping.