JP7097663B2 - Wire welding device - Google Patents

Description

The present invention relates to an electric wire welding device for manufacturing a wire harness or the like to be distributed to an automobile.

Conventionally, clamps are often attached to wire harnesses to be routed to automobiles at intervals in the length direction, and the locking blades of the clamps are inserted and locked in the mounting holes provided in advance on the vehicle body panel. .. However, when it is difficult to provide mounting holes for the vehicle interior floor material, roof material, etc., a double-sided adhesive tape or hook-and-loop fastener may be attached to the wire harness to attach it to the vehicle body side fixing material.

However, when using the double-sided adhesive tape, it is necessary to wrap the adhesive tape around the wire harness to bind and protect the electric wires, and to attach the double-sided adhesive tape to the outer periphery thereof, and to peel off the release paper of the double-sided adhesive tape. However, it is necessary to attach the wire harness by adhering it to the vehicle body side fixing material. As described above, there is a problem that it is necessary to wind the tape twice and it is necessary to bond the release paper while peeling it off in the mounting process to the vehicle body, which requires a lot of work.

The same applies when using a hook-and-loop fastener.It is necessary to attach one side of the male and female hook-and-loop fasteners to the outer circumference of the wire harness bound and protected with adhesive tape, and to fix the other side hook-and-loop fastener to the vehicle body side fixing material. There is a problem that workability is further deteriorated and cost is increased as compared with double-sided adhesive tape.

In order to solve this problem, it has been proposed to cover the wire harness with a heat-welded sheet so that the protective sheet wrapped around the wire harness can be easily ultrasonically welded and attached to the vehicle body side fixing material. (See, for example, Patent Document 1).

That is, in the wire harness assembly line, a sheet capable of heat welding is placed on the workbench with the side surface as the upper surface, and the worker sets the electric wire group in the center of the central adhesive portion of the sheet, and the central adhesive portion of the sheet. Wrap both sides of the wire around the upper surface of the wire group and overlap the excess sides. In this way, the wire harness is assembled with the sheet wound around the required position in the length direction of the electric wire group.

The wire harness assembled in this way is then transported to an automobile assembly line, where the wire harness is laid out along the inner surface of the vehicle body side fixing material, which is the lining material of the automobile, along the ceiling side inner surface, and the seat is used. It is said that it will be welded and fixed to the vehicle body side fixing material at the required position with an ultrasonic welding tool.

JP-A-2015-90783

However, this conventional wire harness requires a worker to hold the sheet wrapped around the outer circumference of the wire group in the wire harness assembly line, which makes it difficult to automate the work. The problem remained.

On the other hand, if the electric wire group is fixed to the sheet fixed to the fixing material on the vehicle body side, there is no need to wind it in particular, and if this winding work can be omitted, further automation becomes possible and the unit price is pushed up. It is possible to avoid such a situation, which is preferable.

An object of the present invention is to provide an electric wire welding device capable of adhering to a sheet-like object that can be adhered to a fixing material such as a vehicle body without damaging the electric wire.

The present invention comprises a sheet supporting means for supporting an ultrasonically weldable sheet-like object so that a part or the whole thereof is horizontal, an electric wire supply means for supplying an electric wire to the upper surface of the sheet-like object, and a sheet-like object. Electric wire welding equipped with an anvil that presses the electric wire supplied to the upper surface from above, and an ultrasonic horn that is provided on the lower surface of the sheet-like object so as to face the anvil and is configured to be able to hold the sheet-like object and the electric wire together with the anvil. It is a device.

In this case, it is preferable to provide a sheet moving means for moving a horizontal part or all of the sheet-like object in the horizontal direction, and it is configured to move the horizontal part or all of the sheet-like object in one direction. If so, the anvil moving means for moving the anvil in the direction orthogonal to the moving direction of the sheet-shaped object and the horn moving means for moving the ultrasonic horn in the direction orthogonal to the moving direction of the sheet-shaped object are further provided. Is preferable.

Further, the anvil can be a roller that can roll on the upper surface of the sheet-like object while pressing the electric wire against the sheet-like object, and a groove is formed in the anvil to drop the electric wire, and the anvil is rotated in a horizontal plane. Can be further prepared.

When the electric wire supply means supplies the electric wire to the anvil from above, the guide member provided above the anvil to guide the electric wire supplied to the anvil and the guide member rotate in synchronization with the rotation in the horizontal plane of the anvil. It is also possible to further provide a guide member rotating means for making the guide member rotate.

Since the electric wire welding device of the present invention includes an ultrasonic horn on the upper surface that contacts the lower surface of the sheet-like object to which the electric wire is supplied, the ultrasonic horn is brought into contact with the lower surface of the sheet-like object and ultrasonically vibrated. , The electric wire can be welded to the sheet-like material.

Here, in general, in ultrasonic welding, a contact mark is generated at a portion where the ultrasonic horn is in contact, but in the electric wire welding device of the present invention, the ultrasonic horn is brought into contact with the sheet-like object, so that the sheet-like object is formed. Even if a contact mark is generated, the contact mark of the ultrasonic horn is not generated on the electric wire. Therefore, it is possible to prevent the electric wire from being damaged due to the contact with the ultrasonic horn, and it is possible to weld the electric wire to the sheet-like material while avoiding the damage to the electric wire.

Then, if a sheet moving means for moving a horizontal part or all of the sheet-like object in the horizontal direction is provided, the electric wire can be welded to the relatively long sheet-like object, and a relatively long wire harness can be obtained. If the anvil or ultrasonic horn is moved in a direction orthogonal to the moving direction of the sheet-shaped object, the electric wire can be welded in the width direction of the sheet-shaped object.

Further, if the anvil is composed of a roller that can be rolled on the upper surface of the sheet-like object, continuous welding of the electric wire is facilitated, and if a groove for dropping the electric wire is formed in the anvil, the electric wire is pressed against the sheet-like object. It is possible to suppress the deformation of the electric wire due to the above.

Further, if the anvil can be rotated in a plane parallel to the sheet-like object, it becomes possible to weld a plurality of electric wires supplied in parallel in parallel in the longitudinal direction and the width direction of the sheet-like object. It is possible to improve the degree of freedom in arranging electric wires.

It is a front view of the electric wire welding apparatus in embodiment of this invention. It is a top view of the electric wire welding apparatus. FIG. 3 is a sectional view taken along line AA of FIG. It is the B part enlarged view of FIG. 1 which shows the circumference of the anvil. It is a top view of the cross section of the DD line of FIG. 4 showing a state in which the end portion of the electric wire is welded to a sheet-like object. It is a top view corresponding to FIG. 5 which shows the state of sequentially welding the electric wire to a sheet-like object. FIG. 6 is a sectional view taken along line CC of FIG. 6 showing a state in which an electric wire is supplied to the upper surface of the sheet-like object. It is sectional drawing corresponding to FIG. 7 which shows the state which the electric wire is welded to the sheet-like object. It is a top view which shows the wire harness obtained by intermittently welding an electric wire to a sheet-like material. It is a figure corresponding to FIG. 9 which shows the wire harness obtained by continuously welding the electric wire to the sheet-like material. It is a top view which shows another wire harness which contains the electric wire which was curved and welded to the sheet-like thing. FIG. 11 is an enlarged top view of part E of FIG. 11 showing a state in which an electric wire is welded to a sheet-like object while being curved. It is sectional drawing corresponding to FIG. 8 which shows the state in which a plurality of electric wires having different outer diameters are welded to the sheet-like material. It is a front view of the electric wire welding apparatus in another embodiment of this invention. 14 is a cross-sectional view taken along the line FF of FIG. FIG. 14 is a sectional view taken along line EE of FIG. 14 showing a top view of the electric wire welding device. 16 is a sectional view taken along line JJ of FIG. 16 showing the frame member. It is the G part enlarged view of FIG. 14 which shows the circumference of the anvil. FIG. 8 is a sectional view taken along line OH of FIG. 18 showing the clamp device and the cutter device. It is a cross-sectional view taken along line KK of FIG. 18 which shows the guide member. It is a figure corresponding to FIG. 18 which shows the state which the anvil and the guide member rotated 90 degrees. It is a top view of the cross section of LL line of FIG. 18 which shows the state which the end part of the electric wire is welded to the sheet-like material. It is a top view corresponding to FIG. 22 which shows the state in which the electric wire is linearly and continuously welded to a sheet-like object. It is a top view corresponding to FIG. 23 which shows the state which the electric wire is newly welded across the linear electric wire. It is a top view corresponding to FIG. 24 which shows the state which the electric wire was welded in a U shape by rotating the anvil 180 degrees.

Next, a mode for carrying out the present invention will be described in detail with reference to the drawings.

1 to 3 show the electric wire welding device 10 in the present invention, and the electric wire welding apparatus 10 supports the sheet-like material 11 capable of ultrasonic welding so that a part or the whole thereof is horizontal. To prepare for.

The sheet supporting means 12 in the figure supports a part of the long sheet-like object 11 so as to be horizontal, and as shown in FIG. 1, a part of the sheet-like object 11 is on the upper surface. A pair of take-up rollers 14 and 15 parallel to each other, which are provided on both sides of the horizontal plate 13 to be mounted and which winds both sides of the sheet-like object 11 which is provided on both sides of the horizontal plate 13 and protrudes from both ends of the horizontal plate 13 in the longitudinal direction. A pair of take-up motors 16 and 17 for separately rotating the pair of take-up rollers 14 and 15 are provided.

Here, the sheet-like material 11 that can be ultrasonically welded is one that can be welded by the vibration of the ultrasonic horn 51 that comes into contact with the ultrasonic horn 51, which will be described later, and is made of PVC (polyvinyl chloride), PE (polyvinyl chloride). Examples thereof include a film made of a resin such as polyethylene) and PP (polypropylene), and a sheet-like material 11 such as a non-woven fabric made of these resins.

Further, the electric wire welding device 10 of the present invention includes a sheet moving means 21 for moving a horizontal part or all of the sheet-like object 11 in the horizontal direction. The sheet moving means 21 in the figure is provided in the vicinity of the ends on both sides of the horizontal plate 13, and a pair of movable rollers 22 and 23 on which the sheet-like objects 11 projecting from the ends of the horizontal plate 13 are placed, respectively. It includes a pair of holding rollers 24, 25 that sandwich the sheet-like object 11 together with a pair of movable rollers 22, 23, and a pair of drive motors 26, 27 that rotate the pair of movable rollers 22, 23.

Then, in the seat moving means 21, the pair of movable rollers 22 and 23 are synchronously rotated by the pair of drive motors 26 and 27 in the same direction at the same speed, so that the seat moving means 21 has a long shape mounted on them. The sheet-like material 11 is configured to move in the longitudinal direction, and among the pair of take-up rollers 14 and 15, the take-up roller 14 or 15 on the rear side in the moving direction of the sheet-like material 11 is the sheet-like material 11. Along with the movement, the sheet-like object 11 that has already been wound is unwound, and the winding roller 14 or 15 located in front of the moving direction is rotated so as to newly wind the moving sheet-like object 11. Shall be made to.

As shown in FIG. 1, the electric wire welding device 10 of the present invention includes an anvil 31 that presses the electric wire 30 supplied to the upper surface of the sheet-like object 11 from above. Here, at least one electric wire 30 may be included. The case where a plurality of electric wires 30 (three in the example shown in FIG. 6) are included in the electric wire 30 in this embodiment is shown. As shown in FIGS. 7 and 8, as the electric wire 30, an insulated electric wire 30 including a core wire 30a and an insulating coating 30b covering the core wire 30a is adopted. The core wire 30a is formed of a conductive material such as copper or aluminum. The core wire 30a may be a single wire or a stranded wire.

On the other hand, as the electric wire 30, an electric wire that can be ultrasonically welded to the sheet-like material 11 is adopted. Therefore, as the insulating coating 30b in the electric wire 30 to be welded to the sheet-like material 11, an ultrasonically weldable resin such as PVC (polyvinyl chloride), PE (polyethylene), PP (polypropylene) is exemplified. That is, the electric wire 30 is exemplified by an electric wire 30 formed by extruding a resin capable of ultrasonic welding on the outer periphery of the core wire 30a, but if the electric wire 30 can be ultrasonically welded to the sheet-like material 11, the electric wire 30 of the core wire 30a. It may be formed by baking an insulating coating 30b such as a varnish applied to the outer periphery.

Returning to FIG. 1, the anvil 31 that presses the electric wire 30 supplied to the upper surface of the sheet-like object 11 from above is provided above the sheet-like object 11 via the rotary moving means 32 that rotates and moves the anvil 31. Be done. The rotary moving means 32 includes an upper telescopic actuator 33 which is an anvil moving means for moving the anvil 31 in the width direction of the sheet-like object 11 above the horizontal plate 13.

The upper telescopic actuator 33 includes a ball screw 33b that is rotationally driven by a servomotor 33a and a slave 33c that is screwed into the ball screw 33b and moves in parallel, and the slave 33c moves in the width direction of the sheet-like object 11. Possible, the housing 33d is attached so as to extend in the width direction of the sheet-like object 11 above the horizontal plate 13.

A movable plate 34 extending in the longitudinal direction of the sheet-like object 11 is attached to the driven element 33c on the side of the housing 33d, and a rotary motor 36, which is an anvil rotating means, is attached to the movable plate 34 with its rotating shaft 36a downward. It can be installed in a protruding state. Then, the anvil 31 is attached to the rotating shaft 36a via the intermediate plate 37 and the elevating means 38. The intermediate plate 37 in the figure is provided horizontally, and the elevating means is an upper fluid pressure cylinder 38. That is, the upper fluid pressure cylinder 38 has its main body 38b attached to the lower part of the intermediate plate 37 so that the rod 38a that appears and disappears due to the pressure of the fluid faces downward and the rod 38a is coaxial with the rotation shaft 36a.

Further, the electric wire welding device 10 of the present invention includes an electric wire supply means 41 for supplying the electric wire 30 to the upper surface of the sheet-like material 11. The electric wire supply means 41 in this embodiment supplies the electric wire 30 to the anvil 31 from above, and the intermediate plate 37 constituting the rotary moving means 32 is provided with a nozzle 42. The nozzle 42 supplies the electric wire 30 to the upper surface of the sheet-like object 11, and the nozzle 42 is provided according to the required number of electric wires 30. In this embodiment, in order to supply the three electric wires 30, the three nozzles 42 (FIG. 6) are inclined so as to gently supply the electric wires 30 from the tip thereof to the upper surface of the sheet-like object 11. , Is attached to the intermediate plate 37 via the support member 43.

As shown in FIG. 4, the nozzle 42 is a tubular body formed by an insertion hole 42a through which a single electric wire 30 can pass through the central axis, and a part thereof communicates with the insertion hole 42a from the outside. A notch 42b is formed. Further, the support member 43 that supports the nozzle 42 is provided with a clamp device 44 that can prohibit the movement of the electric wire 30 inserted through the nozzle 42.

The clamp device 44 is a cylinder 44 in which the rod 44a is retracted and retracted by fluid pressure, and the main body 44b is attached to the support member 43 so that the protruding rod 44a penetrates the notch 42b. Therefore, in this clamping device 44, as shown by the solid line, the rod 44a is brought into contact with the electric wire 30 passing through the insertion hole 42a by projecting the rod 44a, and the free movement of the electric wire 30 is prohibited. As shown by the chain wire, the rod 44a is immersed in the main body 44b so that the rod 44a is separated from the electric wire 30 passing through the insertion hole 42a so that the electric wire 30 can be unwound.

As shown in FIGS. 1 to 3, the electric wire supply means 41 in this embodiment has a gantry 46 provided in the vicinity of the nozzle 42 and an electric wire 30 provided on the gantry 46 to be wound and stored. A drum 47 and a tension device 48 for applying a predetermined tension to the electric wire 30 unwound from the drum 47 and directed to the nozzle 42 are provided. These are provided according to the number of electric wires 30 to be supplied. In this embodiment, in order to supply the three electric wires 30, three drums 47 and three tension devices 48 are also provided accordingly.

Since these have the same structure, one of them will be described as a representative. As shown in FIG. 1, the tension device 48 is provided with a tension bar 48a rotatably around the rotation fulcrum 48b. A wire guide 48c attached to the tension bar 48a, an elastic member 48d that exerts an elastic force according to the rotation angle of the tension bar 48a, and a potentiometer 48e as a detection means for detecting the rotation angle of the tension bar 48a. It is provided with a feeding speed control means 48f (FIGS. 2 and 3) for controlling the feeding speed of the electric wire 30 so that the rotation angle detected by the wire 30 becomes a predetermined angle.

As shown in FIGS. 1 to 3, a plurality of columns 46a are erected on the gantry 46, and a servomotor 48f and a tension device 48 serving as feeding speed control means are provided on the columns 46a. The drum 47 around which the electric wire 30 is wound and stored is coaxially attached to the rotating shaft of the servomotor 48f, and when the servomotor 48f is driven to rotate the rotating shaft, the drum 47 also rotates with the rotating shaft. Then, the electric wire 30 stored therein is unwound and unwound.

As shown in FIG. 1, the electric wire 30 unwound from the drum 47 is guided to the wire rod guide 48c in the tension device 48 and then guided to the nozzle 42 to be supplied to the front surface of the sheet-like object 11, but to the intermediate plate 37. Is attached with a guide pulley 49 that guides the electric wire 30 that has passed through the wire guide 48c to the nozzle 42.

In this tension device 48, the feeding speed of the electric wire 30 is controlled by a servomotor 48f which is a feeding speed control means so that the rotation angle of the tension bar 48a becomes a predetermined angle, and the feeding speed of the electric wire 30 is the electric wire 30. Is balanced with the moving speed of the sheet-like object 11 supplied to the upper surface, and a predetermined tension is applied to the electric wire 30 by the tension bar 48a.

As shown in FIGS. 1 and 4, the anvil 31 that holds down the electric wire 30 supplied to the sheet-like object 11 is attached to the haunting rod 38a of the upper fluid pressure cylinder 38 constituting the elevating means, and the upper fluid pressure cylinder is attached. The main body 38b of the 38 is attached to the intermediate plate 37 with the infestation rod 38a facing downward.

As shown in FIGS. 7 and 8, the anvil 31 is formed with a groove 31a having a V-shaped cross section into which the electric wire 30 is dropped. In this embodiment, since the case where the three electric wires 30 are supplied by the nozzle 42 is illustrated, the anvil 31 is formed with three rows of V-shaped grooves 31a in parallel with each other.

The V-shaped groove 31a is formed corresponding to the outer diameter of the electric wire 30, and as shown in FIG. 8, when the rod 38a of the upper fluid pressure cylinder 38 is projected downward, the electric wire 30 is formed by the anvil 31. Although it is pressed against the sheet-shaped object 11, all the electric wires 30 are accommodated and contacted with the corresponding groove 31a having a V-shaped cross section in this pressed state, and a plurality of electric wires 30 are evenly pressed against the sheet-shaped object 11. It is configured to be pressed down by force.

In this way, when the rod 38a of the upper fluid pressure cylinder 38 constituting the elevating means protrudes downward, the anvil 31 provided therein descends and comes into contact with the electric wire 30 drawn out from the nozzle 42 to form a sheet. Although it is pressed against the upper surface of the object 11, as shown in FIG. 7, when the rod 38a is immersed in the main body 38b, the anvil 31 rises at the same time and separates from the electric wire 30, and the electric wire 30 drawn out from the nozzle 42 is seated. It is configured so that it can be fed out on the upper surface of the object 11.

As shown in FIG. 1, since the intermediate plate 37 provided with the upper fluid pressure cylinder 38 and the nozzle 42 is attached to the rotary shaft 36a of the rotary motor 36, the rotary motor 36 is driven to drive the intermediate plate 37 and the upper fluid. When the pressure cylinder 38 rotates in the horizontal plane, the anvil 31 is also configured to be rotatable in the horizontal plane together with the nozzle 42.

Since the rotary motor 36 can be moved in the width direction of the sheet-like object 11 by the upper telescopic actuator 33, the supply direction of the electric wire 30 from the nozzle 42 is directed to the width direction of the sheet-like object 11, and the nozzle 42 is turned. By moving in the width direction, the electric wire 30 supplied from the nozzle 42 can be supplied not only in the longitudinal direction of the sheet-like object 11 but also in the width direction (FIG. 12).

On the other hand, below the sheet-like object 11, an ultrasonic horn 51 is provided so as to face the anvil 31. The ultrasonic horn 51 in this embodiment sandwiches the sheet-like object 11 and the electric wire 30 together with the anvil 31, and welds the sheet-like object 11 to the electric wire 30 by ultrasonic vibration, and three electric wires 30 are supplied. In this embodiment, one having a size capable of welding the three electric wires 30 at a time is used.

In this embodiment including the sheet moving means 21 for moving the long sheet-shaped object 11 in the longitudinal direction, the horn moving means 52 for moving and raising and lowering the ultrasonic horn 51 in the width direction of the sheet-shaped object 11 is provided. Since it is necessary to bring the ultrasonic horn 51 into contact with the sheet-like object 11, the horizontal plate 13 is not provided in the range in which the ultrasonic horn 51 moves.

The horn moving means 52 in this embodiment includes a lower telescopic actuator 53 that moves the ultrasonic horn 51 in the width direction of the sheet-like object 11, and a lower fluid pressure cylinder 54 as an elevating means that raises and lowers the ultrasonic horn 51. To prepare for. The lower telescopic actuator 53 that moves the ultrasonic horn 51 in the width direction of the sheet-like object 11 has the same structure as the upper telescopic actuator 33 that moves the anvil 31, and its slave 53c is in the width direction of the sheet-like object 11. The housing 53d is movably attached below the horizontal plate 13 so as to extend in the width direction of the sheet-like object 11.

The slave 53c is movably provided above the housing 53d, and the main body 54b of the lower fluid pressure cylinder 54, which is an elevating means, is attached to the slave 53c with the infestation rod 54a facing upward. A vibrator 56 for ultrasonically vibrating the ultrasonic horn 51 is attached to the upper end of the haunting rod 54a, and the ultrasonic horn 51 is provided on the vibrator 56 so as to project upward.

As shown in FIG. 8, in a state where the rod 38a of the upper fluid pressure cylinder 38 of the rotary moving means 32 in the anvil 31 is projected downward and the anvil 31 presses the electric wire 30 against the upper surface of the sheet-like object 11, FIG. When the infestation rod 54a of the lower fluid pressure cylinder 54 constituting the horn moving means 52 is projected upward, the ultrasonic horn 51 attached to the upper end thereof abuts on the lower surface of the sheet-like object 11 and the sheet-like object is formed. The 11 and the electric wire 30 are attached so as to be sandwiched by the anvil 31 and the ultrasonic horn 51. Therefore, as shown in FIG. 8, the sheet-like material 11 can be welded to the electric wire 30 by ultrasonically vibrating the ultrasonic horn 51 in this state.

In this embodiment, the anvil 31 and the ultrasonic horn 51 are configured to be movable in the width direction of the sheet-like object 11, so that the anvil 31 and the ultrasonic horn 51 are also moved in the width direction. The electric wire 30 is configured to be weldable in the width direction of the sheet-like object 11 (FIGS. 11 and 12).

Next, the operation of the electric wire welding device configured in this way will be described.

First, a sheet-like material 11 that can be ultrasonically welded is prepared, and a part or all of the sheet-like material 11 is supported by the sheet supporting means 12 so as to be horizontal.

In this embodiment, as shown in FIG. 1, a part of the sheet-like object 11 is placed on the upper surface of the horizontal plate 13 in the sheet support means 12, and both sides of the sheet-like object 11 protruding from both sides of the horizontal plate 13 are placed on both sides. It is sandwiched by the movable rollers 22 and 23, which are the seat moving means 21, and the holding rollers 24 and 25, respectively, and then both ends thereof are wound around the pair of winding rollers 14 and 15, respectively. In this way, a part of the long sheet-like object 11 is supported horizontally on the upper surface of the horizontal plate 13.

On the other hand, the electric wire 30 welded to the sheet-like object 11 is prepared in a state of being wound around the drum 47, and as shown in FIGS. 2 and 3, the drum 47 in which the electric wire 30 is stored is stored. It is attached to the rotating shaft of the servomotor 48f, which is the feeding control means in the gantry 46. Then, as shown in FIG. 1, the electric wire 30 is unwound from the drum 47 and routed to the wire rod guide 48c of the tension device 48, and then guided to the nozzle 42 via the guide pulley 49.

As shown in FIG. 4, in the nozzle 42, the electric wire 30 is passed through the insertion hole 42a, and the electric wire 30 protruding from the nozzle 42 is guided to the V-shaped groove 31a of the anvil 31. In this state, the rod 44a in the clamp device 44 is projected as shown by a solid line, and the rod 44a is brought into contact with the electric wire 30 passing through the insertion hole 42a to prohibit the free movement of the electric wire 30.

From this state, the electric wire 30 is welded to the sheet-like object 11. Therefore, the sheet moving means 21 moves the sheet-like object 11 to the welding start position of the electric wire 30, so that the electric wire 30 is placed near the end of the sheet-like object 11.

The movement of the sheet-like object 11 is performed by the sheet moving means 21, and the pair of movable rollers 22 and 23 are synchronously rotated by the pair of drive motors 26 and 27 at the same speed in the same direction. , The long sheet-like object 11 placed on them is moved in the longitudinal direction. At this time, of the pair of take-up rollers 14 and 15, the take-up roller 14 or 15 on the rear side in the moving direction of the sheet-like object 11 is a sheet that has already been taken up with the movement of the sheet-like object 11. It is assumed that the moving sheet-like object 11 is newly unwound on the take-up roller 14 or 15 located in front of the moving direction by unwinding the shaped object 11.

In the movement of the sheet-like object 11, as shown in FIG. 7, the rod 38a of the upper fluid pressure cylinder 38 in the rotary moving means 32 of the anvil 31 is immersed in the main body 38b to separate the anvil 31 from the electric wire 30. In the lower fluid pressure cylinder 54 to which the ultrasonic horn 51 shown in FIG. 1 is attached, the infestation rod 54a is immersed in the main body 54b, and the ultrasonic horn 51 is separated from the lower surface of the sheet-like object 11. Keep it. In this way, the sheet-like object 11 and the electric wire 30 are moved in a state where they are not sandwiched by the anvil 31 and the ultrasonic horn 51.

As shown in FIG. 5, after moving the sheet-like object 11 to the welding start position of the electric wire 30, as shown in FIG. 8, the electric wire 30 located near the end of the sheet-like object 11 and the sheet-like object thereof. 11 is sandwiched between the ultrasonic horn 51 and the anvil 31, and the sheet-like material 11 is welded to the electric wire 30.

Specifically, the ultrasonic horn 51 is pressed in a state where the rod 38a of the upper fluid pressure cylinder 38 in the rotary moving means 32 of the anvil 31 is projected downward and the electric wire 30 is pressed against the upper surface of the sheet-like object 11. The sheet-like object 11 is brought into contact with the lower surface thereof, and the sheet-like object 11 and the electric wire 30 are sandwiched by the anvil 31 and the ultrasonic horn 51. In this state, the ultrasonic horn 51 is ultrasonically vibrated.

Although there are longitudinal vibration, lateral vibration and the like as the transmission mode of the ultrasonic vibration from the ultrasonic horn 51, it shall be appropriately selected according to the shape, physical properties and the like of the member to be welded. When ultrasonic vibration is applied to the sheet-like object 11 from the ultrasonic horn 51, friction or compression is generated due to the applied ultrasonic vibration, and thermal energy is generated. As a result, the sheet-like material 11 and a part of the electric wire 30 are melted by heat energy, and both are joined. In this way, the sheet-like material 11 is welded to the electric wire 30.

Here, when ultrasonic welding is performed, in general, a trace of pressing the ultrasonic horn 51 (hereinafter referred to as a horn trace 57 (FIG. 6)) may remain on the member. However, in the electric wire welding device 10 of the present invention, since the ultrasonic horn 51 is in contact with the sheet-like object 11, the horn mark 57 remains on the lower surface of the sheet-like object 11 instead of the upper surface with which the electric wire 30 contacts. It will be. Therefore, in the electric wire welding device 10 of the present invention, it is possible to prevent the electric wire 30 from being damaged during this ultrasonic welding process.

Further, when the electric wire 30 is pressed by the anvil 31, it is possible that the insulating coating 30b of the electric wire 30 is deformed. However, the groove 31a formed in the anvil 31 has a V-shaped cross section, and is a divergent groove 31a in which the entrance of the electric wire 30 expands. Therefore, when the electric wire 30 is dropped into the groove 31a, the situation where the insulating coating 30b of the electric wire 30 comes into contact with the corner portion of the groove 31a and is damaged is avoided.

Further, after the electric wire 30 has entered the groove 31a, the surface area of the anvil 31 in contact with the insulating coating 30b of the electric wire 30 is increased. Therefore, even if the electric wire 30 is pressed against the sheet-like object 11 by the anvil 31, the insulating coating 30b of the electric wire 30 is prevented from being excessively deformed. Therefore, it is possible to suppress the deformation of the electric wire 30 due to the welding of the electric wire 30.

After the end of the electric wire 30 is welded to the sheet-like object 11, even if tension is applied to the electric wire 30 by the tension device 48, the electric wire 30 does not come out from the nozzle 42, so that the rod in the clamping device 44 As shown by the alternate long and short dash line in FIG. 4, the 44a is immersed in the main body 44b to separate the rod 44a from the electric wire 30, and the electric wire 30 inserted into the insertion hole 42a in the nozzle 42 is allowed to move freely.

After that, the sheet-like material 11 is moved again by a predetermined amount, and the electric wire 30 newly drawn out from the nozzle 42 is welded to the sheet-like material 11 again with the movement of the sheet-like material 11.

That is, as shown in FIG. 7, the rod 38a of the upper fluid pressure cylinder 38 in the rotary moving means 32 of the anvil 31 is immersed in the main body 38b to separate the anvil 31 from the electric wire 30, and the ultrasonic horn 51 is in the form of a sheet. Separate from the lower surface of the object 11. In this way, after the sheet-like object 11 and the electric wire 30 are not sandwiched by the anvil 31 and the ultrasonic horn 51, the pair of movable rollers 22 and 23 are moved by the pair of drive motors 26 and 27 shown in FIG. The long sheet-like object 11 is moved by a predetermined amount in the longitudinal direction by rotating it in the same direction and at the same speed in synchronization again.

When the sheet-like object 11 is moved as shown by the solid arrow in FIG. 6, the welded end of the electric wire 30 whose end is welded to the sheet-like object 11 is moved away from the nozzle 42, which is new. The electric wire 30 is supplied from the nozzle 42 to the upper surface of the sheet-like object 11. Then, after moving the sheet-shaped object 11 by a predetermined amount, as shown in FIG. 8, the newly unwound electric wire 30 and the sheet-shaped object 11 are sandwiched again by the ultrasonic horn 51 and the anvil 31 to generate ultrasonic waves. The horn 51 is ultrasonically vibrated again to weld the sheet-like material 11 to the electric wire 30.

In this way, after the end of the electric wire 30 is welded to the sheet-like material 11, the sheet-like material 11 is moved by a predetermined amount, and the electric wire 30 newly drawn out from the nozzle 42 is welded to the sheet-like material 11 again. By repeating this process, a desired length and number of electric wires 30 are welded to a relatively long sheet-like object 11 while avoiding damage to the electric wires 30.

Here, the movement and welding of the sheet-like material 11 are repeated, and when the movement amount of the sheet-like material 11 exceeds the outer diameter of the ultrasonic horn 51 which is the ultrasonic welding range, as shown in FIG. 6, the electric wire 30 Since the portion welded to the sheet-like material 11 and the portion not welded to the sheet-like material 11 alternately occur along the longitudinal direction thereof, the electric wire 30 is intermittently ultrasonically welded to the sheet-like material 11.

At this time, the range of one welding location and the predetermined amount for moving the sheet-like object 11, that is, the distance between adjacent welding locations (pitch P) and the like are appropriately set according to the bonding strength and the like. Further, the electric wire 30 may be intermittently ultrasonically welded to the sheet 11 at a constant pitch P along the longitudinal direction of the electric wire 30 by making a predetermined amount of movement of the sheet 11 constant. The pitch P to be welded may be different by causing a change in a predetermined amount for moving the sheet-like object 11.

After the desired length and number of electric wires 30 are welded to the sheet-like object 11 at the desired pitch P, the rod 44a in the clamp device 44 shown in FIG. 4 is projected from the main body 44b as shown by a solid line, and the rod 44a is projected from the main body 44b. The rod 44a is brought into contact with the electric wire 30 inserted through the insertion hole 42a in the nozzle 42, and the movement of the electric wire 30 in the nozzle 42 is prohibited. In that state, the electric wire 30 between the nozzle 42 and the portion welded to the sheet-like object 11 is cut, and the sheet-like object 11 to which the electric wire 30 is welded is removed from the sheet support means 12 shown in FIG. A relatively long wire harness 9 in which the length and number of electric wires 30 are welded to a relatively long sheet-like material 11 is obtained.

As shown in FIG. 9, the wire harness 9 obtained by intermittently ultrasonically welding the electric wire 30 to the sheet-like material 11 is subsequently attached with a connector 8 to the end of the electric wire 30 as needed. Then, it is transported to an automobile assembly line or the like. Then, although not shown, in the automobile assembly line, the sheet-like material 11 is arranged along a fixing material such as an automobile lining material, and the sheet-like material 11 is welded and fixed to the fixing material at a required position by an ultrasonic welding tool. ..

Note that FIG. 9 describes a case where the sheet-like object 11 is moved by a predetermined amount (pitch P) beyond the outer diameter of the ultrasonic horn 51, and the electric wire 30 is intermittently ultrasonically welded to the sheet-like object 11. However, as shown in FIG. 10, the moving amount (pitch P) of the sheet-shaped object 11 is set to be less than the outer diameter of the ultrasonic horn 51 which is the ultrasonic welding range, and the electric wire 30 is continuously superposed on the sheet-shaped object 11. It may be ultrasonically welded.

As shown in FIG. 10, even if the electric wire 30 is continuously ultrasonically welded to the sheet-like object 11, in the electric wire welding device 10 of the present invention, the ultrasonic horn 51 abuts on the sheet-like object 11 instead of the electric wire 30. Therefore, it is possible to weld the electric wire 30 to the sheet-like object 11 while avoiding damage to the electric wire 30.

Further, FIG. 9 shows a case where three electric wires 30 extend in parallel in parallel in the longitudinal direction of the sheet-like object 11 and are welded, but as shown in FIG. 1, the sheet supporting means 12 winds up a pair. Since the rollers 16 and 17 are provided, after the three electric wires 30 are welded to the sheet-like material 11, the sheet-like material 11 is returned and arranged in line with the already welded electric wires 30 as shown in FIG. The electric wire 30 may be welded to the sheet-like material 11.

Further, as shown in FIG. 1, since the upper fluid pressure cylinder 38 provided with the anvil 31 and the intermediate plate 37 provided with the nozzle 42 are attached to the rotating shaft 36a of the rotary motor 36, the anvil 31 is also attached to the nozzle 42 together with the nozzle 42. It is configured to be rotatable in a horizontal plane.

Since the rotary motor 36 can be moved in the width direction of the sheet-shaped object 11 by the upper telescopic actuator 33 (FIG. 1), the supply direction of the electric wire 30 from the nozzle 42 is directed to the width direction of the sheet-shaped object 11. By moving the nozzle 42 in the width direction, the electric wire 30 supplied from the nozzle 42 can also be supplied in the width direction of the sheet-like object 11.

On the other hand, since the ultrasonic horn 51 is also configured to be movable in the width direction of the sheet-like object 11, the ultrasonic horn 51 facing the anvil 31 is opposed to the anvil 31 in the width direction of the sheet-like object 11. The electric wire 30 supplied in the width direction of the sheet-like material 11 may be welded to the sheet-like material 11 in a state of being directed in the width direction of the sheet-like material 11.

At this time, since the anvil 31 is rotatable in a plane parallel to the sheet-shaped object 11, a plurality of electric wires 30 supplied in parallel are welded in parallel in the longitudinal direction and the width direction of the sheet-shaped object 11. It becomes possible.

Specifically, when the electric wire 30 is welded in the longitudinal direction of the sheet-like object 11, as shown in FIG. 12, a plurality of electric wires supplied in parallel while gradually rotating the anvil 31 together with the plurality of nozzles 42. By welding 30 to the sheet-shaped object 11 in parallel, the wiring direction of the plurality of electric wires 30 can be changed from the longitudinal direction to the width direction of the sheet-shaped object 11 while remaining in parallel.

Then, after the wiring direction of the electric wire 30 is changed to the width direction of the sheet-like object 11, the nozzle 42 is moved in the width direction of the sheet-like object 11, so that the electric wire 30 supplied from the nozzle 42 is in the sheet shape. A plurality of electric wires 30 supplied in parallel are welded to the sheet-shaped object 11 while being supplied in the width direction of the object 11 and the ultrasonic horn 51 is moved in the width direction of the sheet-shaped object 11. It is possible to weld the electric wires 30 not only in the longitudinal direction but also in the width direction while keeping the electric wires 30 in parallel. As a result, the degree of freedom in arranging the electric wires 30 is improved.

Although the case where a plurality of nozzles 42 through which a single electric wire 30 is inserted is provided in the above-described embodiment, a single nozzle 42 through which a plurality of electric wires 30 are inserted may be used.

Further, in the above-described embodiment, FIGS. 7 and 8 show a case where a concave groove 31a having the same size is formed in the anvil 31 that holds down the three electric wires 30 having similar outer diameters. However, with the electric wire 30 pressed against the sheet-like object 11 by the anvil 31, all the electric wires 30 are accommodated and contacted with the corresponding groove 31a having a V-shaped cross section, and the concave groove 31a is brought into contact with the sheet-like object 11. It presses a plurality of electric wires 30 with an even force. Therefore, as shown in FIG. 13, if the outer diameter of the electric wire 30 is different, it is preferable that the size of the concave groove 31a is also different. By making the size of the concave groove 31a different in this way, the concave groove 31a can press the plurality of electric wires 30 against the sheet-like object 11 with an even force, and the plurality of electric wires 30 can be pressed against the sheet. It is possible to weld to the state object 11 at the same time and surely.

The following FIGS. 14 to 16 show another embodiment of the present invention. In this other embodiment, the same reference numerals as those in the above-described embodiment indicate the same parts, and repeated description thereof will be omitted.

As shown in FIGS. 15 and 16, the electric wire welding device 60 in this other embodiment also includes the sheet supporting means 62. The sheet supporting means 62 in this other embodiment supports the sheet-like material 11 that can be ultrasonically welded so as to be horizontal, and the frame member 64 that supports the outer periphery of the sheet-like material 11. To prepare for.

As shown in FIG. 17, the frame member 64 that supports the outer periphery of the rectangular sheet-shaped object 11 has a long flat plate 65a in a sheet shape so that the periphery of the rectangular sheet-shaped object 11 is placed on the frame member 64. The metal flat plate material 65, which is combined in a rectangular shape along the outer shape of the object 11 and has an opening in the center thereof, the reinforcing material 66 that reinforces the circumference of the flat plate material 65 assembled in the rectangular shape, and the flat plate material 65. A holding tool 67 for sandwiching the four peripheral corners of the placed sheet-like object 11 together with the flat plate member 65 is provided.

The flat plate material 65 is made of metal, and the holding tool 67 includes a holding plate 67a that sandwiches the periphery of the sheet-like object 11 together with the flat plate material 65, and the holding plate 67a is provided with a magnet 67b and a handle 67c. The holding tool 67 configured in this way has the magnetic force of the magnet 67b simply by superimposing the holding tool 67 on the edge of the sheet-like object 11 in a state where the edge of the sheet-like object 11 is placed on the flat plate member 65. As a result, the holding plate 67a sandwiches the edge of the sheet-like object 11 together with the flat plate member 65. Then, the worker holding the handle 67c removes the sheet-like object 11 from the frame member 64 by pulling the holding tool 67 away from the flat plate member 65 against the force attracted by the flat plate member 65 of the magnet 67b. Is configured to be able to.

As shown in FIG. 16, the seat supporting means 62 in this other embodiment includes a horizontal plate 63 on which a frame member 64 that supports the entire sheet-like object 11 so as to be horizontal is mounted on the upper surface. The electric wire welding device 60 according to the embodiment is provided with a sheet moving means 71 for moving the frame member 64 mounted on the upper surface of the horizontal plate 63 in the horizontal direction.

The sheet moving means 71 puts the entire horizontal sheet-like object 11 whose circumference is sandwiched between the frame member 64 together with the frame member 64 in either the longitudinal direction or the width direction of the sheet-like object 11 provided horizontally. The sheet moving means 71 in the figure is a width direction actuator 72 that moves the frame member 64 in the width direction of the sheet-like object 11 and a width direction actuator thereof. A longitudinal actuator 73 for moving the 72 together with the frame member 64 in the longitudinal direction of the sheet-like object 11 is provided.

These actuators 72 and 73 have the same structure as the telescopic actuator 33 in the previous embodiment, and sandwich the horizontal plate 63 on both sides of the horizontal plate 63 having a size capable of sufficiently moving the frame member 64. As such, a pair of longitudinal actuators 73 are provided. That is, the housing 73d of the longitudinal actuator 73 is provided parallel to the longitudinal direction of the sheet-like object 11, and the housing 72d of the width actuator 72 is attached to the driven element 73c that moves in the longitudinal direction by the rotation of the ball screw 73b by the servomotor 73a. Is erected.

Further, as shown in FIG. 17, the driven element 72c that moves by the rotation of the ball screw 72b by the servomotor 72a of the width direction actuator 72 is provided with a locking member 74 that is locked to the frame member 64. A locking plate 68 is provided on the reinforcing member 66 that reinforces the short side of the flat plate member 65 assembled in the rectangular shape of the frame member 64, and the locking member 74 is engaged with the frame member 64 mounted on the horizontal plate 63. A stop plate 68 is attached and configured to lock.

Returning to FIG. 16, in the seat moving means 71, when the servomotor 72a of the width direction actuator 72 is driven and the ball screw 72b is rotated to move the slave 72c, the frame mounted on the horizontal plate 63 is placed. The member 64 is moved in the width direction together with the sheet-like object 11 supported by the frame member 64, and the servomotors 73a of the pair of longitudinal actuators 73 are simultaneously driven to rotate the ball screws 73b in synchronization with each other. As a result, when the slave 73c is moved in the same direction and at the same speed, the frame member 64 mounted on the horizontal plate 63 together with the widthwise actuator 72 is moved, and the sheet-like object 11 supported by the frame member 64 is moved in the longitudinal direction thereof. Will be moved to.

As shown in FIGS. 14 and 15, the electric wire welding device 60 of the present invention includes an anvil 81 that presses the electric wire 30 supplied to the upper surface of the sheet-like object 11 from above. In the anvil 81 in this other embodiment, the anvil 81 is provided above the sheet-like object 11 via a rotary moving means 82 that rotates the anvil 81 in a horizontal plane and moves it up and down in the vertical direction. That is, a torii member 83 that covers the horizontal plate 63 from above is provided at the substantially center of the horizontal plate 63, and a support plate 84 projects horizontally from the upper torii member 83 at the substantially center of the horizontal plate 63. Is provided.

As shown in FIG. 18, a rotary motor 86 for rotating the anvil 81 in a horizontal plane is attached to the support plate 84 in a state where the rotary shaft 86a is projected downward. A vertical rotating rod 87 is provided on the support plate 84 so as to be rotatable about a vertical axis and movable in the vertical direction. A boss material 85 that surrounds the vertical rotating rod 87 is attached to the support plate 84 upward, and a horizontal member 89 is provided at the upper end of the boss material 85. The horizontal member 89 in the figure is provided horizontally, and a fluid pressure cylinder 88 which is a means for raising and lowering the anvil 81 in the vertical direction is provided.

That is, the fluid pressure cylinder 88 has its main body 88b attached to the horizontal member 89 so that the rod 88a that appears and disappears due to the pressure of the fluid faces downward and the rod 88a is coaxial with the vertical rotating rod 87. The upper end of the vertical rotating rod 87 is rotatably locked to the lower end of the rod 88a, and the anvil 81 is attached to the lower end of the vertical rotating rod 87 through the support plate 84 via the pivot tool 94. ..

Further, the support plate 84 is provided with a pulley 91 that is non-rotatable to the vertical rotating rod 87 and is movable in the longitudinal direction of the vertical rotating rod 87. A pulley 92 is also provided on the rotary shaft 86a of the rotary motor 86, and a belt 93 is erected between the pulley 92 in the rotary motor 86 and the pulley 91 provided on the vertical rotary rod 87, and the rotary motor 86 is installed. When the rotating shaft 86a is driven and rotates together with the pulley 92, the vertical rotating rod 87 is configured to rotate in a horizontal plane together with the anvil 81 provided at the lower end thereof via the belt 93.

As shown in FIGS. 14 and 15, the electric wire welding device 60 in this other embodiment also includes the electric wire supply means 41 described in the above-described embodiment. The anvil 81 is pivotally supported at the lower end of the vertical rotating rod 87 via a pivot tool 94, and the pivot support 94 has a pulley-like shape for turning the electric wire 30 unwound from above by the electric wire supply means 41. The wire guide 102 is further pivotally supported. The wire guide 102 is provided according to the required number of electric wires 30.

As shown in FIG. 18, in the pivot support 94 that supports the wire rod guide 102 and the anvil 81, a clamp device 104 and a cutter device 106 that are turned by the wire rod guide 102 and sandwich the electric wire 30 that has passed through the anvil 81 are fluid. It is provided via the compression cylinders 96 and 97. The pivot tool 94 on the opposite side of the wire guide 102 sandwiching the anvil 81 is provided with a main body 96b of a vertical fluid pressure cylinder 96 having a movable piece 96a in the vertical direction, and the vertical fluid pressure cylinder 96 is movable. The piece 96a is provided with a main body portion 97b of a horizontal fluid pressure cylinder 97 that makes it possible to move the movable piece 97a in the horizontal direction orthogonal to the electric wire 30 that has passed through the anvil 81.

Further, as shown in FIG. 19, a mounting piece 98 is mounted on the movable piece 97a of the horizontal fluid pressure cylinder 97 so as to extend in the vertical direction, and the mounting piece 98 is provided with a clamp device 104 and a cutter device 106.

The clamp device 104 is a fluid pressure cylinder 104 in which a rod 104a is moved by fluid pressure, and a holding tool 105a on which an electric wire 30 passing through an anvil 81 is placed is attached to a mounting piece 98, and an electric wire is attached together with the holding tool 105a. The clamp piece 105b sandwiching the 30 is attached to the rod 104a of the fluid pressure cylinder 104. Then, when the rod 104a is projected, the fluid pressure cylinder 104 is attached to the mounting piece 98 so that the holding piece 105b moving with the rod 104a holds the electric wire 30 together with the holding tool 105.

Therefore, in this clamping device 104, as shown by the solid line arrow, the electric wire 30 that has passed through the anvil 81 is sandwiched by projecting the rod 104a, and the free movement of the electric wire 30 is prohibited, as shown by the broken line arrow. In addition, by immersing the rod 104a in the main body 104b, the pinching of the electric wire 30 is eliminated, and the electric wire 30 can be unwound.

On the other hand, the cutter device 106 cuts the electric wire 30 that has passed through the clamp device 104 in the vicinity of the clamp device 104, and even in this cutter device 106, the fluid pressure cylinder 106 that causes the rod 106a to appear and disappear due to the fluid pressure. Is. Specifically, the fixed cutter blade 107a on which the electric wire 30 that has passed through the clamp device 104 is placed is attached to the mounting piece 98, and the movable cutter blade 107b is attached to the rod 106a of the fluid pressure cylinder 106.

Therefore, when the rod 106a is projected together with the movable cutter blade 107b, the main body 106b is such that the cutting edge of the movable cutter blade 107b comes into contact with the cutting edge of the fixed cutter blade 107a and cuts the electric wire 30 existing between them. It is mounted on the mounting piece 98. Therefore, the cutter device 106 is configured to cut the electric wire 30 that has passed through the clamp device 104 by projecting the rod 106a as shown by the solid arrow.

As shown in FIG. 18, the anvil 81 pivotally supported by the pivot tool 94 rolls on the upper surface of the sheet-shaped object 11 while pressing the electric wire 30 supplied from above and turned by the wire rod guide 102 against the sheet-shaped object 11. As shown in FIG. 22, the roller is a movable roller, and a groove 81a having a U-shaped cross section is formed around the roller-shaped anvil 81 around which the electric wire 30 is dropped. In this embodiment, since the case where the three electric wires 30 are rotated and supplied by the wire guide 102 is illustrated, three rows of U-shaped grooves 81a having a cross section are formed in parallel with each other in the anvil 81. ..

Returning to FIG. 18, when the rod 88a of the fluid pressure cylinder 88 constituting the elevating means protrudes downward, the vertical rotating rod 87 descends, and the anvil 81 provided at the lower end thereof via the pivot tool 94. Is also configured to descend. Therefore, when the sheet-like object 11 is present below the anvil 81, the electric wire 30 turned around by the wire guide 102 and hung around the anvil 81 is pressed against the upper surface of the sheet-like object 11.

Then, as shown in FIG. 21, the U-shaped groove 81a of the anvil 81 is formed corresponding to the outer diameter of the electric wire 30, and all the electric wires 30 are pressed against the sheet-like object 11 by the anvil 81. The electric wires 30 are accommodated and in contact with the corresponding groove 81a having a U-shaped cross section, and are configured to press the plurality of electric wires 30 against the sheet-like object 11 with an even force.

On the other hand, when the rod 88a is immersed in the main body 88b, the fluid pressure cylinder 88 constituting the elevating means is configured so that the anvil 81 rises together with the vertical rotating rod 87 and is separated from the sheet-like object 11.

Returning to FIG. 14, the electric wire supply means 41 is configured to supply the electric wire 30 to the anvil 81 from above, and the horizontal member 89 above the anvil 81 and provided with the fluid pressure cylinder 88 is attached to the anvil 81. A guide member 108 that guides the supplied electric wire 30 to the wire guide 102, and a guide member rotating means 109 that rotates the guide member 108 in synchronization with the rotation of the anvil 81 in the horizontal plane are further provided.

As shown in FIGS. 18 and 20, the guide member 108 is a flat plate having a passage hole 108a formed at the tip thereof, and the base end thereof is pivotally supported by the horizontal member 89. The guide member rotating means 109 for rotating the guide member 108 is an electric motor, and the electric motor 109 is attached to the horizontal member 89 so that the rotation shaft 109a is coaxial with the pivot point of the guide member 108. The rotation shaft 109a is coaxially attached to the base end of the guide member 108 (FIG. 18).

As shown in FIGS. 18 and 21, the pivot support 94 provided with the anvil 81 for pressing the electric wire 30 against the upper surface of the sheet-like object 11 is configured to be rotatable in a horizontal plane when the rotary motor 86 is driven. As shown in FIG. 21, when the rolling direction of the anvil 81 is directed to the width direction of the sheet-like object 11, the guide member 108 is passed by driving the electric motor 109 and rotating the guide member 108 in the same direction. The hole 108a is configured to move and guide the electric wire 30 that is fed out from above and passes through the passing hole 108a to the wire rod guide 102.

Then, the supply direction of the electric wire 30 from the wire rod guide 102 also faces the width direction of the sheet-like object 11, and by moving the sheet-like object 11 in the width direction in that state, the electric wire 30 is supplied from the wire rod guide 102. The electric wire 30 is configured to be able to be supplied not only in the longitudinal direction of the sheet-shaped object 11 but also in the width direction (FIG. 24).

That is, as shown by the alternate long and short dash line and the alternate long and short dash line in FIG. 20, the guide member rotating means 109 is fed out from above by rotating the guide member 108 in the same direction in synchronization with the rotation of the anvil 81 in the horizontal plane. The electric wire 30 is configured to be quickly guided to the wire rod guide 102 that rotates together with the anvil 81 without any trouble.

As shown in FIGS. 14 and 15, an ultrasonic horn 111 is provided below the anvil 81 so as to face the anvil 81. The ultrasonic horn 111 in this embodiment sandwiches the sheet-like object 11 and the electric wire 30 together with the anvil 81 (FIGS. 18 and 21), and welds the sheet-like object 11 to the electric wire 30 by ultrasonic vibration. In this embodiment in which three electric wires 30 are supplied, one having a size capable of welding the three electric wires 30 at a time is used.

In this other embodiment, a hole 63a slightly larger than the outer diameter of the ultrasonic horn 111 is formed in the horizontal plate 63 below the anvil 81, and the upper end of the ultrasonic horn 111 can be raised and lowered through the hole 63a. It is composed. That is, the electric wire welding device 60 in this other embodiment includes a lower fluid pressure cylinder 112 as an elevating means for raising and lowering the ultrasonic horn 111. The main body 112b of the lower fluid pressure cylinder 112 is attached below the hole 63a with the infestation rod 112a facing upward. A vibrator 110 for ultrasonically vibrating the ultrasonic horn 111 is attached to the upper end of the haunting rod 112a, and the ultrasonic horn 111 is provided on the vibrator 110 so as to project upward.

As shown in FIGS. 18 and 21, when the electric wire 30 is pressed against the upper surface of the sheet-like object 11 and the infestation rod 112a of the lower fluid pressure cylinder 112 shown in FIG. 14 is projected upward, the electric wire 30 is projected upward. The ultrasonic horn 111 attached to the upper end abuts on the lower surface of the sheet-like object 11, and the sheet-like object 11 and the electric wire 30 are attached so as to be sandwiched by the anvil 81 and the ultrasonic horn 111. Therefore, the upper end edge of the ultrasonic horn 111 can be brought into close contact with the lower surface of the sheet-like object 11, and the sheet-like object 11 is formed flat so as to be slidable. Then, in a state where the sheet-like object 11 and the electric wire 30 are sandwiched by the anvil 81 and the ultrasonic horn 111, the sheet-like object 11 can be welded to the electric wire 30 by ultrasonically vibrating the ultrasonic horn 111.

On the other hand, when the infestation rod 112a of the lower fluid pressure cylinder 112 is immersed in the main body 112b, the ultrasonic horn 111 attached to the upper end thereof descends so that the upper edge thereof is flush with the upper surface of the horizontal plate 63. It is composed of. Therefore, when the ultrasonic horn 111 is lowered, the frame member 64 (FIG. 16) mounted on the upper surface of the horizontal plate 63 and the ultrasonic horn 111 are prevented from interfering with each other, whereby the ultrasonic horn 111 is mounted on the upper surface of the horizontal plate 63. The frame member 64 (FIG. 16) is configured to be movable in the horizontal direction.

Next, the operation of the electric wire welding device according to another embodiment configured as described above will be described.

First, the sheet-like material 11 that can be ultrasonically welded is prepared and supported by the sheet supporting means 62 so that a part or all of the sheet-like material 11 is horizontal. As shown in FIG. 16, in this other embodiment, since the seat supporting means 62 includes the frame member 64, the frame member 64 capable of supporting the sheet-like object 11 of a required size is prepared, and the frame member 64 is prepared. Let 64 support the sheet-like object 11. In supporting the sheet-like object 11, the edge of the sheet-like object 11 is placed on the flat plate member 65 of the frame member 64, and in that state, the pressing tool 67 is placed on the edge of the sheet-like object 11. Will be done.

After the sheet-shaped object 11 is supported by the frame member 64, the frame member 64 is mounted on the horizontal plate 63, whereby the entire sheet-shaped object 11 is supported so as to be horizontal. Then, the locking plate 68 provided on the frame member 64 is locked to the locking member 74 in the seat moving means 71, and the frame member 64 is made movable in the horizontal plane by the seat moving means 71.

On the other hand, as shown in FIG. 14, in the electric wire 30 welded to the sheet-like object 11, after unwinding from the stored drum 47 and allocating to the wire rod guide 48c of the tension device 48, the guide member 108 After passing through the hole 108a, the wire guide 102 is guided. In the wire guide 102, the electric wire 30 is turned and guided to the U-shaped groove 81a (FIG. 21) of the anvil 81, and then the electric wire 30 that has passed through the anvil 81 is sandwiched by the clamping device 104, so that the electric wire 30 is free. Prohibit movement.

From this state, in order to weld the electric wire 30 to the sheet-like object 11, the sheet moving means 71 moves the sheet-like object 11 to the welding start position of the electric wire 30, and as shown in FIG. 22, the end of the sheet-like object 11 is used. The electric wire 30 is placed in the vicinity of the portion. That is, the sheet moving means 71 (FIG. 16) moves the frame member 64 mounted on the horizontal plate 63 together with the sheet-shaped object 11, and the electric wire 30 is provided near the end of the sheet-shaped object 11 supported by the frame member 64. To be placed.

In the movement of the sheet-like object 11, the fluid pressure cylinder 88 shown in FIG. 18 has its rod 88a immersed in the main body 88b to separate the anvil 81 from the sheet-like object 11, and the ultrasonic horn 111 shown in FIG. In the lower fluid pressure cylinder 112 to which the is attached, the infestation rod 112a is immersed in the main body 112b, and the ultrasonic horn 111 is separated from the lower surface of the sheet-like object 11. In this way, the sheet-like object 11 and the electric wire 30 are moved in a state where they are not sandwiched by the anvil 81 and the ultrasonic horn 111.

After moving the sheet-like object 11 to the welding start position of the electric wire 30, as shown in FIG. 18, the electric wire 30 located near the end of the sheet-like object 11 and the sheet-like object 11 are combined with the ultrasonic horn 111. It is sandwiched by the anvil 81.

Specifically, the lower fluid pressure cylinder 112 shown in FIG. 14 with the rod 88a of the fluid pressure cylinder 88 shown in FIG. 18 protruding downward and the anvil 81 pressing the electric wire 30 against the upper surface of the sheet-like object 11. In that case, the infestation rod 112a is projected upward so that the ultrasonic horn 111 comes into contact with the lower surface of the sheet-like object 11. In this way, the sheet-like object 11 and the electric wire 30 are sandwiched by the anvil 81 and the ultrasonic horn 111. In this state, the ultrasonic horn 111 is ultrasonically vibrated to weld the sheet-like material 11 to the electric wire 30.

After the end of the electric wire 30 which is the welding start position is welded to the sheet-like object 11, the clamp device 104 releases the pinching of the electric wire 30, and the clamping device 104 is released by the fluid pressure cylinders 96 and 97 (FIG. 18). To a retreat position away from the feeding position of the electric wire 30 together with the cutter device 106.

After that, the sheet-like object 11 is moved in a state where the ultrasonic horn 111 is ultrasonically vibrated, and along with the movement of the sheet-like object 11, it is newly unwound from the wire rod guide 102 and rolled on the sheet-like object 11. The electric wire 30 sandwiched by the roller-shaped anvil 81 and the ultrasonic horn 111 one after another is sequentially welded to the upper surface of the sheet-like object 11, and as shown in FIG. 23, the electric wire 30 is attached to the sheet-like object 11. Weld continuously in the direction of movement.

At this time, the sheet-like object 11 slides on the upper end edge of the ultrasonic horn 111, and the roller-shaped anvil 81 rolls on the sheet-like object 11 and is fed onto the sheet-like object 11. The electric wire 30 is sequentially welded to the sheet-like object 11 at the stage where the anvil 81 and the ultrasonic horn are sandwiched.

As described above, in the electric wire welding device 60 according to another embodiment of the present invention, the electric wire 30 is continuously welded to the sheet-like object 11, but the ultrasonic horn 111 is brought into contact with the sheet-like object 11 from below. Therefore, even if the horn mark 57 is generated on the lower surface of the sheet-like object 11, the anvil 81 rolls on the upper surface of the sheet-like object 11, so that the anvil 81 slides on the electric wire 30 welded to the upper surface. It will not be scratched like a mark.

Further, since the groove 81a formed in the anvil 81 has a U-shaped cross section, the surface area of the anvil 81 in contact with the insulating coating 30b (FIG. 7) of the electric wire 30 is increased. Therefore, even if the electric wire 30 is pressed against the sheet-like object 11 by the anvil 81, the insulating coating 30b of the electric wire 30 is prevented from being excessively deformed. Therefore, it is possible to suppress the deformation of the electric wire 30 due to the welding of the electric wire 30.

Further, the pivot support 94 provided with the anvil 81 can be rotated in a horizontal plane by the rotary motor 86 shown in FIG. 18, and the seat moving means 71 shown in FIG. 16 has a frame member 64 for supporting the sheet-like object 11. Since it can be moved not only in the longitudinal direction but also in the width direction, as shown in FIG. 21, the rolling direction of the roller-shaped anvil 81 is directed to the width direction of the sheet-like object 11, and the sheet-like object 11 is oriented thereof. By moving in the direction, as shown in FIG. 24, the electric wire 30 supplied from the wire guide 102 and the anvil 81 rolls and sandwiches the electric wire 30 together with the ultrasonic horn 111 is continuously held in the width direction of the sheet-like object 11. It can be welded.

At this time, since the anvil 81 is formed with a plurality of rows of concave grooves 81a into which the plurality of electric wires 30 supplied in parallel are dropped, the sheet-like material 11 is welded in parallel in the longitudinal direction and the width direction. It becomes possible.

Specifically, after welding the electric wire 30 in the longitudinal direction of the sheet-like object 11, the anvil 81 is gradually rotated together with the wire rod guide 102, and a plurality of electric wires 30 supplied in parallel are welded in parallel to the sheet-like object 11. By doing so, it is possible to change the wiring direction of the plurality of electric wires 30 from the longitudinal direction to the width direction of the sheet-shaped object 11 while keeping them in parallel.

Further, since the fluid pressure cylinder 88 that raises and lowers the anvil 81 is provided, the electric wire 30 that is continuously welded in the width direction of the sheet-like object 11 is another electric wire that is first continuously welded in the longitudinal direction of the sheet-like object 11. Even in the case of straddling 30, by temporarily raising the anvil 81 and floating the anvil 81 from the upper surface of the sheet-like object 11 when straddling the other electric wire 30, the anvil 81 is first. It is possible to prevent the sheet-like material 11 from rolling so as to cross over another electric wire 30 continuously welded in the longitudinal direction.

Then, when the anvil 81 exceeds another electric wire 30 continuously welded in the longitudinal direction of the sheet-like object 11, the anvil 81 is lowered again and rolled on the sheet-like object 11. Another electric wire 30 continuously welded in the longitudinal direction of the sheet-like material 11 is crossed with the other electric wire 30 without causing damage due to the rolling of the anvil 81, and the electric wire 30 is newly formed with the width of the sheet-like material 11. It can also be continuously welded in the direction.

Further, since the rotation range of the pivot tool 94 provided with the anvil 81 by the rotary motor 86 in the horizontal plane is not particularly limited, as shown in FIG. 25, after welding the electric wire 30 in the longitudinal direction of the sheet-like object 11. , The pivot tool 94 is rotated 180 degrees in the horizontal plane to change the wiring direction of the plurality of electric wires 30 from the longitudinal direction of the sheet-like object 11 to the width direction, and further, the wiring direction of the sheet-like object 11 is changed. By returning the wire rods 30 in the longitudinal direction, the plurality of wire rods 30 can be welded to the sheet-shaped object 11 in a U-shape while being in parallel.

Then, since the guide member rotating means 109 rotates the guide member 108 in the same direction in synchronization with the rotation of the anvil 81 in the horizontal plane, even if the wire rod guide 102 is rotated 180 degrees together with the anvil 81, it is drawn out from above. Since the guide member 108 quickly guides the electric wire 30 to the wire guide 102 without any trouble, there is no problem in welding the wire 30 to the sheet-like object 11 in a U shape. As a result, the degree of freedom in arranging the electric wires 30 is further improved.

After welding the electric wires 30 of a desired length and number to the sheet-like object 11 in a desired direction, the electric wires 30 extending from the roller-shaped anvil 81 to the sheet-like object 11 are sandwiched by the clamping device 104 shown in FIG. , Prevent the supply of new electric wire 30. In that state, the cutter device 106 cuts the electric wire 30 between the clamp device 104 and the portion welded to the sheet-like object 11, and the frame member 64 is moved by the sheet moving means together with the sheet-like object 11 to which the electric wire 30 is welded. Remove from 71. Further, by removing the sheet-shaped object 11 from the frame member 64 which is the sheet-supporting means 62, a wire harness having a desired length and number of electric wires 30 welded to the sheet-shaped object 11 is obtained.

Since the electric wire 30 extending from the anvil 81 to the sheet-like object 11 is sandwiched by the clamp device 104, by attaching another frame member 64 on which the sheet-like object 11 is supported to the sheet moving means 71, the next electric wire 30 is immediately obtained. Welding work to the sheet-like material 11 can be started.

Then, although not shown, the wire harness obtained by continuously ultrasonically welding the electric wire 30 to the sheet-like material 11 is subsequently attached to the end of the electric wire 30 as needed, as in the above-described embodiment. The connector is attached and then transported to an automobile assembly line or the like. Then, in the assembly line, for example, the sheet is arranged along a fixing material such as an automobile lining material, and the sheet-like material 11 is welded and fixed to the fixing material at a required position by an ultrasonic welding tool.

In the above-described embodiment, as shown in FIGS. 1 and 14, the case where the lifting means for raising and lowering the anvils 31 and 81 is the fluid pressure cylinders 38 and 88 has been described. However, the elevating means 38 and 88 are not limited to the fluid pressure cylinder as long as the anvils 31 and 81 can be elevated and lowered. For example, when it is difficult to receive the load at the time of ultrasonic welding, the anvils 31 and 81 may be moved up and down by using a cam mechanism.

Further, in the above-described embodiment, the case where three electric wires 30 are supplied has been described, but the number of electric wires 30 is not limited to this, and may be one or two. good. Further, the number may be four or more.

10,60 Electric wire welding device 11 Sheet-like material 12,62 Sheet support means 21,71 Sheet moving means 30 Wire 31,81 Anvil 31a, 81a Groove 33 Anvil moving means 36,86 Anvil rotating means 41 Wire supply means 51,111 Sonic horn 52 Horn moving means 108 Guide member 109 Guide member Rotating means

Claims (5)

A sheet supporting means (12,62) that supports the ultrasonic weldable sheet (11) so that part or all of it is horizontal, and
An electric wire supply means (41) for supplying an electric wire (30) to the upper surface of the sheet-like object (11),
Anvil (31,81) that presses the electric wire (30) supplied to the upper surface of the sheet-like object (11) from above, and
The sheet-like object (11) is provided on the lower surface of the sheet-like object (11) so as to face the anvil (31,81) so that the sheet-like object (11) and the electric wire (30) can be sandwiched together with the anvil (31,81). Ultrasonic horn (51,111) and
A sheet moving means (21,71) for moving a horizontal part or all of the sheet-like object (11) in the horizontal direction,
An electric wire welding device including an anvil rotating means (36,86) for rotating the anvil (31,81) in a horizontal plane . The sheet moving means (21) is configured to move a horizontal part or all of the sheet-like object (11) in one direction.
Anvil moving means (33) for moving the anvil (31) in a direction orthogonal to the moving direction of the sheet-like object (11), and
The electric wire welding device according to claim 1 , further comprising a horn moving means (52) for moving the ultrasonic horn (51) in a direction orthogonal to the moving direction of the sheet-shaped object (11). The wire supply means (41) is configured to supply the wires from above to the anvil (81).
A guide member (108) provided above the anvil (81) and guiding an electric wire supplied to the anvil (81), and
The electric wire welding device according to claim 1 or 2 , further comprising a guide member rotating means (109) for rotating the guide member (108) in a horizontal plane in synchronization with the rotation of the anvil (81). The electric wire welding according to any one of claims 1 to 3 , wherein the anvil (81) comprises a roller that can roll on the upper surface of the sheet-like object (11) while pressing the electric wire (30) against the sheet-like object (11). Device. The electric wire welding device according to any one of claims 1 to 4 , wherein a groove (31a, 81a) for dropping the electric wire (30) is formed in the anvil (31,81).

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