JPS6046490B2 - Wire harness wiring jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a wiring jig used for manufacturing a wire harness.

Wire harnesses are generally constructed by combining a large number of electric wires, providing branch lines to the main line, and connecting connectors to each of these lines. Because it requires a great deal of labor and time to manufacture, it has traditionally been difficult to use various automatic wiring methods. A method is proposed.

However, in principle, these methods first cut the wires to a predetermined length and then route them between each connector, so they have the advantage of being automated all the way up to the installation of the connectors. However, there were problems in that it took a long time to produce and the productivity was poor.

The present invention has been made with attention to the above-mentioned points, and consists of arranging electric wires in advance at appropriate intervals at positions corresponding to the terminal parts of main lines, branch lines, etc. constituting a predetermined wire harness.
By placing a bridge to hold the wire and attaching a wiring jig to the wiring head running on the workbench, wires can be routed between each bridge and joint, and the appropriate length can be routed from the bridge. The terminal part is left in place, which allows for continuous wiring and cutting of wires, as well as removal of insulation coating from the terminal part, crimping and crimping of connection terminal fittings, and connectors. It is an object of the present invention to provide a wiring jig for a wire harness having a structure that makes it easy to install the wire harness and thereby significantly reduces the time and labor required for manufacturing the wire harness. That is, in the present invention, a capstan head and a wire upturning device are provided on the upper part of a cylindrical body with a wire insertion hole inside, and the capstan head has a built-in capstan for reducing the tensile force during running, and a capstan for reducing the tensile force during running. The wiring jig for a wire harness is provided with a wire loosening prevention piece facing the capstan, and a backstop claw provided on the wire upturn device.

Hereinafter, the present invention will be explained in detail with reference to the drawings.

In FIG. 1A, reference numeral 1 denotes a workbench, on which a plurality of wiring locking pins 2 and a wiring table 3 are arranged in advance at predetermined positions. 4 is a bridge placed on the wiring table 3;
As shown in the opening of FIG. 1, a large number of pairs of welded pieces 6, 6'' each having a sloped part 7 at the outer upper end are arranged horizontally at regular intervals on a narrow strip-shaped substrate 5. , cut as appropriate depending on the number of wires to be used.

This bridge 4 is preferably made of the same type of thermoplastic resin as the insulating coating of the electric wire. In addition, the above welded piece 6,6''
Instead, a flexible clamping piece may be provided to hold it. Reference numeral 8 denotes a wire that has been routed, and a programmed automatic machine, that is, a cooperation mechanism between a wiring head equipped with a wire clamping jig and the wiring table 3, sequentially places the wire on the wiring table 3 on the bridge 4. The wires 8 are positioned and locked between the welded pieces 6, 6'', and the terminal portions of each wire 8 are cut off from the bridge 4 leaving a predetermined length I, and wired to connect each wiring table 3. , wire harness A is obtained.

When the wiring is finished, the workbench 1 is moved to the next station, and the welding devices installed corresponding to each wiring table 3 simultaneously weld the welded pieces 6, 6'' of each bridge 4 to the insulation coating of the wire 8. is welded to.

Next, a tape 9 is wound around the branch portion of each electric wire 8 and temporarily fixed. As a result, as shown in FIG. 2, each electric wire 8 is routed with a predetermined wiring spacing and number of wires according to the product spacing, and is connected to the bridge 4 with a predetermined length l left from each end. Thus, the wire harnesses B are obtained, which are fixed in five orderly arrays at regular intervals. Although this wire harness B is a semi-finished product, it is automatically routed with the desired wiring spacing and number of wires, leaving a predetermined length at the end of each wire! Since they are arranged and fixed in an orderly manner by the bridge, they are extremely advantageous for storage, transportation, etc. before proceeding to the next process, such as connecting connection terminal fittings and connectors to the terminal parts.

In the embodiment shown in Fig. 3, it is fixed with bridge 4! Remove the coating from the end of each electric wire 8, and use a terminal fitting device to remove the coating.
A wire harness C is obtained by removing the insulation coating and crimping the connecting terminal fittings 10.

Since the ends of the electric wires 8 constituting this wire harness C are arranged and fixed in an orderly manner by the bridge 4, a plurality of connection terminal fittings 10 can be crimped and connected at the same time, as shown in FIG. Thus, when connecting to the connectors 11, there is no need for the trouble of inserting the connecting terminal fittings 10 one by one, and the fittings can be easily inserted at the same time.

The completed wire harness D shown in FIG.
The terminal portion of the bridge 4 is welded and fixed by a bridge 4.

Therefore, even if a local tensile force is applied to a particular electric wire 8'' during transportation, storage, or when actually installed and used in a car, for example, the tensile force is dispersed by the bridge 4, and the connection terminal fitting 10 from being pulled out from the connectors 11.The apparatus according to the present invention will be explained with reference to FIG.

FIG. 5 is a schematic perspective view of the wiring device. Wiring head 1
5 is provided movably.

The X-axis 12 and the Y-axis 14 are rotated separately by motors, and by appropriately setting the amount of rotation, the wiring head 15 and the electric wire 8 held by the head 15 are placed on the workbench 1. Each wiring stand 3 can be moved to any desired position. Reference numeral 16 denotes a control device, in which the entire wiring process is programmed (NC-controlled) using tape.

Reference numeral 17 denotes an electric wire reel station, and each electric wire 8 whose insulation coating is color-coded is attached to a tensile force reducing capstan 18 which is rotated in the direction in which the electric wire is fed out by a motor (not shown).
It is connected to the wiring head 15 via.

FIG. 6 is a side view of the wiring head 15, in which a clamp jig 45 is mounted on the upper part of the wiring head main body 19 and the lower part of the wiring jig 2. It is provided.

An annular wiring jig mounting base 21 is rotatably provided in the wiring head main body 19 by a plurality of guide rollers 20, and the mounting base 21 is connected to a regulating rotation motor 22 such as a servo motor.
It is linked to. Wiring jig elevating guide pipes 23 are provided at predetermined intervals on this wiring jig mounting base 21, a plurality of wiring jigs 24 are inserted, and the wiring jig 24 is fixed to a predetermined position using the knob pins 25. Holds at height.

Different color wires 8 are connected to each wiring jig 24 from the reel station 17, but the rotation of the wiring jig mounting base 21 interlocked with the regulating rotation motor 22 allows any wiring jig to be connected to the wiring jig 24. 24 can be selectively positioned at a predetermined position P (FIG. 7).

Reference numeral 26 is a lifting unit that raises and lowers the wiring jig 24 at a predetermined position P, and 27 is a motor that drives a capstan 33 of the wiring jig 24, which will be described later.

As shown in FIG. 8, the wiring jig 24 has a wire insertion hole 28 inside and a connecting bar 30 on the outside of the cylinder 29 that engages with the lifting unit 26.
A part of the capstan head 31 and wire check device 3
5, a nozzle 38 for wiring the electric wire is provided at the lower part. The capstan head 31 has the motor 27 on the outside.
The wheel 32 driven by
A capstan 33 is provided which is pivoted to the capstan 33, and a wire loosening prevention piece 34 is provided facing the lower part of the capstan 33.

Further, the electric wire non-return device 35 is provided with non-return claws 36, 36 urged by a spring 36a inside thereof, and a flexible electric wire guide 37 is provided at the upper end. The electric wire wiring nozzle 38 is formed of a coil spring, and when a certain tension is applied to the wiring jig 24 while running, it bends in the opposite direction to the running direction, and returns to its original state when the tension is released when the running is stopped. It is preferable to use a material that has a certain degree of elasticity and can straighten the bending of the wire being wired. 38a is a support tube for the wiring nozzle 38, and the tube 38a is a wire support tube 38c inserted into the cylindrical body 29.
A screw 38b is secured to the lower part of the holder.

The electric wire 8 is inserted from the electric wire guide 37 at the upper end of the wiring jig 24, passes between the non-return claws 36, and is attached to the capstan 3.
After the wire is wrapped around the wire, it is passed through the wire support tube 38c1 and the nozzle support tube 38a to the wiring nozzle. Pull it out from the bottom end of 38.

The end portion of the wire 8 is locked to a wire clamp claw 52 of the wiring table 3, which will be described later, and the motor 27 is automatically driven to rotate the capstan 33, and the wiring jig 24 runs to apply tension. As the capstan 33 rotates, its tensile force is reduced, and the electric wire 8 is smoothly fed out.

In addition, the electric wire 8 is connected to a cutting blade 48 of a clamp jig 45, which will be described later.
When the tension is suddenly released,
The elastic pressing force of the electric wire loosening prevention piece 34 facing the capstan 33 prevents the electric wire from returning.

As a result, the end portion of the electric wire 8 is always exposed from the tip of the wiring nozzle 38. The above is a case of a wiring jig that actually runs for wiring wires, and wire check claws 36, 36 are provided on the upper part of each wiring jig 24.

Therefore, the electric wire 8 is prevented from being pulled out by the action of the electric wire non-return claw 36 urged by the spring 36a, and each wiring jig 24 always runs with the electric wire inserted and held. FIG. 9 is a side view of the elevating and rotating device for the clamp jig 45, in which numeral 39 indicates the clamp jig body, and the actuator 40
It is provided so as to be movable up and down relative to the wiring head main body 19.

Reference numeral 41 denotes an annular clamp jig mounting plate which also serves as a pulley, and is rotatable with respect to the clamp jig main body 39, and is provided at a position where its center coincides with the axis of the wiring jig 24 at the predetermined position P. .

Reference numeral 42 denotes a regulating rotation motor for controlling the direction of the clamp jig 45, 43 a timing pulley thereof, and 44 a belt connecting the clamp jig mounting board 41 and the timing pulley 43.

Therefore, by driving the regulating rotation motor 42 of the clamp jig 45, the clamp jig 45 can be rotated to a desired position about the wiring jig 24, and can be moved up and down by the actuator 40. FIG. 10 is an enlarged side view of the clamp jig 45. The clamp jig 45 includes, in order from the front, a front terminal clamp plate 46, a wire terminal insertion guide plate 47 with a built-in coil spring 47a, a cutting blade 48, and a rear terminal. The guide plate 47 and the cutting blade 48 slightly protrude from the lower surfaces of the front and rear end clamp plates 46 and 49 and are provided to be perpendicular to each other.

This front terminal clamp plate 46 and rear terminal clamp plate 49
and are provided at symmetrical positions with respect to the cutting blade 48. FIG. 11 is a perspective view of the wiring table 3, in which a plurality of nozzle guide pins 50 are provided at the front end of the upper part, a nozzle guide groove 54 is provided at the rear end, and a bridge placement groove for sequentially placing the bridges 4 in the middle. 51, a wire clamp claw 52 and a cutting blade contact surface 53 are provided, and a fitting hole 55 for a welding jig 60, which will be described later, is provided on one side of the bridge mounting groove 51.

Note that 56 is a release screw for the wire clamp claw 52. The nozzle guide pin 50, the nozzle guide groove 54, etc. are increased or decreased depending on the number of wires to be wired, and are used to guide the wiring nozzle 38 of the wiring jig 24 during wiring, and are also used as wire clamps. The claw 52 is responsible for holding the electric wire during wiring and for holding the electric wire until the welding process, and can only hold down the inserted electric wire.

FIG. 12 shows the correspondence between the wiring table 3, the wiring jig 24, and the clamp jig 45, and shows the starting point of the wiring (the 12th
In Figure A), the bridge 4 is placed in advance in the bridge mounting groove 51 of the wiring table 3-1, and the wiring nozzle of the wiring jig 24 is placed between the bridge 4 and the nozzle guide pin 50. 38 is bent and contacted, and the end portion (length 1) of the wire 8 exposed from the tip thereof is located above between the wire clamp claws 52 in a slightly bent state.

In this state, when the clamp jig 45 is pushed down, the wire end insertion guide plate 47, which protrudes from the lower surface of the front end clamp plate 46, comes into contact with the end of the wire 8, as shown in FIG.

Therefore, the wire 8 is guided to the center of the wire clamp claw 52, then steadily pressed by the front terminal clamp plate 46 and held between the clamp claws 52, and at the same time positioned between the welded pieces 6, 6'' of the bridge 4. That is, at the starting point of the wiring, even if the wire exposed from the tip of the wiring nozzle 38 is slightly bent, the wire end insertion guide plate 4
7 and the front end clamp plate 46, it is securely locked onto the wiring table 3-1.

FIG. 12C shows the end point of the wiring, and the wiring table 3-2 is placed opposite the wiring table 3-1.

Further, the wiring nozzle 38 of the wiring jig 24 bends into contact with the nozzle guide groove 54, and the electric wire 8 exposed from its tip is connected to the wiring locking pin 2 and the nozzle. guide pin 50
It is stretched linearly between the wiring table 3-1 and the wiring table 3-1 via the wiring table 3-1. Therefore, the wire 8 is aligned with the center of the wire clamp claw 52 and the welded pieces 6, 6'' of the bridge 4. In this state, when the clamp jig 45 is pressed down,
．． The electric wire 8 is steadily pressed against the rear terminal clamp plate 49 and held between the clamp claws 52, and at the same time, the electric wire 8
It is cut by a cutting blade 48 leaving an end portion (length l) at the top. Next, if the clamp jig 45 is rotated by the operation of the regulating rotation motor 42 (see FIG. 9) and positioned directly behind the wiring jig 24, the wiring Return to the starting point state.

Figure 13 shows wiring jig 2, clamp jig 45, and wiring table 3.
Schematic representation of the wiring process according to

1. Positioning a specific wiring jig 24 at a predetermined position P by the regulating rotation motor 22 (hereinafter referred to as 1 wiring jig selection);
The wiring jig 24 is lowered to the rear of the wiring table 3-1 by driving the lifting unit 26 (hereinafter referred to as 1 wiring jig lowering).

(Fig. 13A) 2 Wiring jig 24 on X axis 12 and Y axis 14
(hereinafter referred to as RXY axis travel), the wiring jig 24 is positioned at the starting position of the wiring (see Fig. 12A), and the clamp jig 45 is lowered and raised by driving the actuator 40 ( Lowering of the 0 clamp jig,
The terminal part (length l) of the electric wire 8 is placed on the wiring table 3.
-1 (see Fig. 12A), the capstans 18 and 33 for reducing the tensile force of the electric wire are simultaneously driven (hereinafter referred to as 0 capstan drive).

(Figure 13) The wiring jig 24 is moved toward the wiring table 3-2 while the electric wire 8 is stretched by 3rxY-axis travel.

(FIG. 13C) Position the wiring jig 24 at the end point of the wiring (see FIG. 12C) with respect to the wiring table 3-2, and
The electric wire 8 is locked and cut by lowering and raising the clamp jig. Then, the first capstan drive is stopped. (
The wiring between the wiring tables 3-1 and 3-2 is completed at d) and d) in Fig. 13.

) By moving the RxY axis, the wiring jig 24 is moved to the wiring table 3-2.
The clamping jig 45 is positioned directly behind the wiring jig 24 by driving the regulating rotation motor 42.

That is, clamp jig direction control is performed. (Figure 13 E)
5rxY-axis travel. As a result, the wiring jig 24 is moved to another preset wiring table), and the original wiring jig 24 is raised by the driving of the lifting unit 26 and held at a predetermined height.

lNext, similarly to 1, another specific wiring jig 24 selects 1 wiring jig. And.

The wiring jig is lowered and steps 2, 3, . Figure 14 A, C]? The correspondence relationship between the wiring table 3 and the welding device is shown. Reference numeral 57 denotes a welding jig main body, which is provided on a mounting frame 58 via an actuator 59 so as to be movable up and down.

The welding jig 60 accommodates a slide plate 61 having a plurality of slide grooves 62 in a welding jig main body 57.
2, a comb-shaped crimp rod 63 with an arcuate recess 64 formed at the tip;
is provided to be movable up and down by an actuator 65, and a hot air device 66 is rotatably supported on the welding jig main body 57.

The hot air device 66 has a built-in heater (not shown) and heats the air sent by the air vibrator 67 to heat the welded pieces 6, 6'' of the bridge 4 placed on the wiring table 3 and the insulation coating of the electric wire 8. 68 is the fitting hole 55 of the wiring table 3.
This is the fitting pin for the FIG. 15 shows the welding process of the bridge 4 and the electric wire 8 using the welding jig 60. In FIG. When the crimp rod 63 is inserted into the hole 55 and positioned on the bridge 4, the hot air supplied by the heating device 66 is blown toward the bridge 4.

After the heating and melting process using the hot air, the actuator 65 is driven to lower the crimp rod 63 and push it down into the bridge mounting groove 51 of the wiring table 3, and the arcuate recess 64 The upper part of the welding pieces 6, 6'' is shown welded to the insulation coating of the electric wire 8. At this time, the welding pieces 6, 6'' are provided with an inclined part 7 (see the opening in Figure 1). Therefore, it smoothly engages with the arcuate recess 64 of the crimp rod 63, and the welding 3
The pieces 6, 6'' are pressed inward and crimped. By providing this welding jig 60 for each of the plurality of wiring tables 3 in FIG. By winding the branch part 8 with tape 9, a wire 3 harness B as shown in Fig. 2 is obtained.Fig. The entire fitting device is shown. Reference numeral 69 denotes a wire holder having a wire guide pin 70, and an auxiliary clamp 4f71 is provided to the pin 70 so as to be openable and closable, so as to clamp the wire.

72 is a wire sheath removal and cutting device provided opposite to the wire holder 69, and a pair of sheath removal and cutting blades 73, 7;
4, and the blades 73 and 74 are provided so as to be movable toward and away from each other in the direction in which they face each other and in the direction of the wire holder 69.

75 is a clamp for the auxiliary clamp 71.

A terminal crimping device 76 has a lower crimping die 77 and an upper crimping die 78 driven by a hydraulic press ram 79. The crimping device 76 is configured to be slidably movable behind the wire holder 69. 80 is a terminal feeding guide incorporating upper and lower terminal feeding claws 81 and 82 (see FIG. 17); 83 is a terminal transfer cylinder that moves together with the terminal crimping device 76; 84 is a chain terminal connecting a large number of terminals; 85 is a terminal feed adjustment piece.

FIG. 17 schematically shows the steps of removing the coating from the end portion of the wire, cutting it, and attaching the terminal fitting.

i Place the electric wire 8 fixed on the bridge 4 with the terminal part (length 1) left on the electric wire holder 69, and clamp and fix it with the electric wire guide pin 70 and the auxiliary clamp 71 (17th
Figure A) Remove the coating from the pair of wires 11 and approach the wire holder 69 side with the cutting blades 73 and 74 open.

(Fig. 17)■ Removing coatings facing each other, cutting blade 73,
74 and lightly pinch the electric wire 8 from above and below (0 points)
, move back to the coating removal position (01 point).

(FIG. 17C) In 11 and Ii above, the wire 8 is neatly partitioned by the wire guide pin 70 and is pressed down by the sheath removal and cutting blades 73 and 74 approaching from above and below, so that the end portions of the wire 8 are separated from above and below. , it is firmly held even if it is curved to the left or right.

At the Iv coating removal position (point 01), only the coating is cut by the upper and lower coating removal and cutting blades 73 and 74, and the wire is retreated to the wire cutting position (point 02). i.e. 01-02
At the V wire cutting position (point 02) where the conductor part of the wire 8 is exposed between the points (FIG. 17D), the upper and lower coatings are removed, and the wire 8 is cut by the cutting blades 73 and 74.
3,74 retreats.

Therefore, each electric wire 8 is cut from the bridge 4 at a fixed position, and the tips thereof are all aligned.

(FIG. 17E) ■ The terminal crimping device 76 moves behind the wire holder 69.

At the same time, the chain terminal 84 is also moved according to the number of electric wires 8 by the terminal feeding claws 81, 82. (Go to Fig. 17) ■ By driving the hydraulic breath ram 79, each connection terminal fitting 10 of the chain terminal 84 is swaged to the end of each electric wire 8 (see Fig. 3), and the terminal swage device 76 is returned to its original position. retreat to.

At this time, the moving distance of the crimping device 76 is (?), but the terminal feed claw 82 is moved by the terminal feed adjustment piece 85, so the connecting terminal fitting 10 is moved in a direction corresponding to (Σ-?ton) (Fig. In the case of
As shown in FIG. 3, a wire harness C having connection terminal fittings 10 crimped at each wire end is obtained.

Next, by attaching connectors to each part of the connection terminal fitting 10, a completed wire harness D as shown in FIG. 4 is obtained. As explained above, the present invention has a capstan head and a wire check device on the upper part of a cylindrical body with a wire insertion hole inside, and the capstan head is equipped with a capstan for reducing the tensile force during running. It has a structure in which an electric wire loosening preventing piece is provided internally and facing the capstan, and the electric wire non-returning device is provided with an electric wire non-returning claw.

Therefore, a plurality of wiring tables are arranged in advance on a workbench with product intervals, a bridge for holding the electric wire is placed on each wiring table, and a wiring head runs on the workbench. By attaching the above-mentioned wiring jig to the wiring table, it is possible to route the electric wire between desired wiring tables.

Since this wiring jig is equipped with a capstan to reduce the tensile force, when the wiring jig runs, the wire can be smoothly fed out, and when the jig stops running, the wire is cut, and the tension is suddenly reduced. When the wire is released, the action of the wire loosening prevention piece prevents the wire from coming back, and the wire end portion is always exposed from the tip of the wiring jig, ready for the next wiring.
Further, since a wire check claw is provided on the top of each wiring jig, the wire is prevented from being pulled out, and the wire is always securely inserted and held while traveling.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIGS. 1 to 4 are explanatory diagrams of each embodiment when assembling a wire harness, FIG. 5 is a perspective view of the wiring device, and FIG. 6 is a diagram showing the wiring head 15. , FIG. 7 is a plan view of the wiring head 15, FIG. 8 is a partial sectional view of the wiring jig 24, FIG. 9 is a side view of the elevating and rotating device for the clamp jig 45, and FIG. 11 is a perspective view of the wiring table 3, and FIG. 12 is an enlarged side view of the clamp jig 45.
13 is an explanatory diagram showing the mutual relationship between the wiring table 3, the wiring jig 24, and the clamp jig 45, FIG. 13 is an explanatory diagram of the wiring process, and FIG.
FIG. 15 is an explanatory diagram showing the mutual relationship between the wiring table 3 and the welding device, FIG. 15 is an explanatory diagram of the wire welding process, and FIG. 16 is a perspective view showing the entire device for removing the wire coating and attaching the terminal fitting. FIG. 17 is an explanatory diagram of the steps of removing the coating, cutting, and attaching the terminal fitting.

Claims (1)

[Claims] 1. A capstan head and a wire check device are installed on the top of a cylindrical body with a wire insertion hole inside, and the capstan head has a built-in capstan for reducing tensile force during running, and a capstan facing the capstan. A wiring jig for a wire harness, wherein a wire loosening prevention piece is provided on the wire harness, and a non-return claw is provided on the wire non-return device.