JPH07192840A - Automatic closed terminal work machine - Google Patents

Abstract

PURPOSE:To provide an automatic closed terminal work machine by which a series of works can be automated to solve various problems caused by manual work. CONSTITUTION:A wire rod supplying positioning member 2, an electric wire twisting machine 3, a closed terminal supplying machine 4, a terminal crimping machine 3, a crimp inspecting machine 6 and a closed terminal crimping electric wire discharging machine 7 are arranged in order. An electric wire chuck pallet 8 gripping an electric wire moves up to the closed terminal crimping electric wire discharging machine 7 from the wire rod supplying positioning member 2 by a free flow conveyor 9 arranged on the front side, and performs respective works in order on the electric wire in respective positions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention produces a closed-terminal crimped electric wire by twisting the cores of a plurality of stripped electric wires, then inserting the cores into a closed terminal and crimping and fixing them. The present invention relates to an automatic closed terminal processing machine.

[0002]

2. Description of the Related Art Generally, as shown in FIG. 45, a closed terminal is formed by integrally molding a large-diameter introducing cylinder 53 on the other end of a small-diameter accommodating cylinder 52 whose one end is closed. And an insulating member 51 and a sleeve 54 formed of a conductive member attached to the inner peripheral portion of the housing cylinder 52.
After the end portions are peeled off and the core portions of the plurality of insulation-coated electric wires whose core wires are exposed are twisted together, the core portions are inserted into the containing cylinder 52, and the containing cylinder 52 portion is covered. Conventionally, a series of work such as connecting a plurality of electric wires by tightening them has been performed manually.

However, when the work of twisting the core wire with the fingertip is repeated all day, there is a problem that the fingertip becomes painful and the work efficiency is deteriorated to lower the productivity.
Further, as described above, the introduction tube 53 is formed in the closed terminal so that the core wire portion can be easily inserted. However, when manually inserting the core wire portion into the closed terminal, the introduction tube 53 is inserted into the small-diameter storage cylinder 52. It is difficult to surely accommodate the core wire portion, and the insertion amount is varied, which causes various problems such as defective crimping.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an automatic closed terminal processing machine capable of automating a series of work in order to solve various problems caused by the above-mentioned manual work.

[0005]

In order to solve the above problems, the present invention provides an electric wire gripping means for gripping a plurality of stripped electric wires and a plurality of electric wires gripped by the electric wire gripping means. An electric wire twisting machine for twisting core wires to each other, a closed terminal feeder for feeding one closed terminal one by one to supply a closed terminal to the twisted core wires, and a terminal for crimping and fixing the closed terminals to the core wire portion. The crimping machine, the closed terminal crimping wire discharger for discharging the closed terminal crimping wire with the closed terminal crimped and fixed to the core wire, and the wire twisting machine, the closed terminal feeder, the terminal crimping machine and the closed terminal crimping wire discharger. Provided is an automatic closed-terminal crimping machine, which is arranged on the front surface side and has a conveying means for conveying the electric wire gripping means from the electric wire twisting machine to the closed-terminal crimping electric wire discharging machine and supplying the electric wire to each work position. It is a thing.

Further, when the wire gripping means grips the wire, if a wire rod supply positioning member having a contact plate for contacting the tip of the wire is provided, the wire is supplied in a constant state to each working machine. Therefore, it is preferable.

Further, before discharging the closed-terminal crimped electric wire, a crimping inspection machine for detecting a crimping defect can be provided by sandwiching the vicinity of connection of the electric wire with the closed terminal with electrodes.

[0008]

In the automatic closed terminal processing machine configured as described above, the wire gripping means for gripping a plurality of stripped wires sequentially transfers the wire from the wire twisting machine to the closed terminal crimping wire discharger by the transfer means. Then, each work is performed at each work position. First, in the electric wire twisting machine, core portions of a plurality of electric wires held by the electric wire holding means are twisted together. Next, in the closed terminal feeder, the closed terminals are supplied to the twisted core portions. Then, in the terminal crimping machine, the closed terminal is crimped and fixed to the core wire portion. The closed terminal crimped wire with the closed terminal crimped and fixed in this manner is discharged by the closed terminal crimped wire discharger.

Also, in the case where the wire rod positioning member is provided, the wire is always supplied to the wire gripping means in the same state by bringing the tip of the wire into contact with the contact plate.

Further, in the case where the crimp inspection machine is provided, a crimped closed terminal crimped electric wire is detected before discharge.

[0011]

EXAMPLES Examples will be described below with reference to the drawings. As shown in FIG. 1, the automatic closed terminal processing machine 1 includes a positioning member for supplying wire material 2, a wire twisting machine 3, a closed terminal supply machine 4, a terminal crimping machine 5, a crimp inspection machine 6 and a closed terminal crimping wire discharge machine. 7 are sequentially arranged, and the electric wire chuck pallet 8 holding the electric wires is moved from the wire rod supply positioning member 2 to the closed terminal crimp electric wire discharger 7 by a free flow conveyor 9 provided on the front side thereof. Each work is performed on the wire at the position.

As shown in FIGS. 2 to 5, the chuck pallet 8 has an openable / closable clamp 8 for holding an electric wire.
10 and a cam mechanism 82 for opening and closing the clamp 810.
0, and a main body frame 840 that supports the clamp 810 and the cam mechanism 820.

The body frame 840 has a base plate 84.
1, and a side plate 842 supported by the base plate 841,
The side plate 842 is composed of a cover 843 which covers the upper surface and the back surface of the cover 843.
A guide plate 844 having a groove 844a for setting an electric wire is erected on the front end of the.

As shown in FIG. 5, the clamp 810 has two guide rods 814 extending between the side plates 842 of the main body frame 840.
A pair of left and right slide members 813 supported by the main body frame 840 so that they can approach and separate from each other, and each slide member 813.
Clamp arm 81 protruding further forward from the front end of the
2 and a clamp claw 811 supported by the tip of the clamp arm 812, and a roller 821, which is a follower of the cam mechanism 820, is supported on the lower surface of the slide member 813.

A coil spring 815 shown in FIG. 6 having one end connected to one slide member 813 and the other end connected to the other slide member 813 is housed inside the slide member 813. This coil spring 81
By the tension of 5, both slide members 813 are urged in a direction to relatively approach each other. Note that when both slide members 813 are in contact with each other, the left and right clamp claws 811 are open, as shown in FIG.

As shown in FIGS. 3 and 7, the cam mechanism 820 comprises the roller 821 which is a driven body, and a cam 822 which opens and closes the clamp 810 by moving the roller 821. .

The cam 822 is movable forward and backward by the two guide rods 825 extending between the stopper members 823 and 824 provided upright in front of and behind the base plate 841. And a cam body 827 integrally supported by the slide member 826. Both side surfaces of the cam body 827 contact the outer peripheral surface of the roller 821 as cam surfaces. It is like this.

The cam body 827 has a base member 828 integrally formed with the slide member 826 and an upper cam member 829 supported on the upper surface of the base member 828.
And a movable cam member 830 sandwiched between the base member 828 and the upper cam member 829.

A receiving recess 829a for the movable cam member 830 is formed in the central portion of the upper cam member 829 from one side to the other side, and the movable cam member 830 is formed.
In a state where the movable cam member 830 is housed in the housing recess 829a, both side surfaces of the movable cam member 830 are exposed at both side portions of the upper cam member 829 and the cam surface 82 together with both side surfaces of the upper cam member 829.
7a is formed.

An intermediate portion of the cam surface 827a from the front end to the rear end of the upper cam member 829 is swollen outward, and the swollen intermediate portion is mainly formed by both side surfaces of the movable cam member 830. There is.

As shown in FIG. 7, the movable cam member 830 has a pair of front and rear movable members 831 that slide left and right along the accommodating recess 829a of the upper cam member 829, and the movable member 831 is opposite to each other. And a coil spring 832 that presses in the direction.

The movable member 831 comprises a slider 831a having rack portions 831b at both ends, and a protrusion 831c forming the cam surface 827a formed at one end of the slider 831a. A contact portion 831d of the coil spring 832 is formed in the vicinity.

Therefore, when the movable cam member 830 is accommodated in the accommodation recess 829a of the upper cam member 829, the coil spring 832 is sandwiched between the contact portions 831d as shown in FIG. The protrusion 8
However, the sliding range of the movable member 831 is restricted by the tip of the abutting portion 831d coming into contact with the side surface of the rack portion 831b on the other end side of the movable member 831 which is opposed. There is.

The movable member 831 is the rack portion 8
31b are located at positions facing each other, and a pinion 833 that meshes with the teeth of the facing rack portion 831b is rotatably supported by the base member 828 and the upper cam member 829.

Therefore, the cam surfaces 827 of both movable members 831 are
When an inward external force is applied to a, as shown in FIG.
Both movable members 831 move inward by the same amount, but are determined by the length of the rack portion 831b.

As shown in FIG. 7, operation rods 826a and 826 are provided on the front surface and the rear surface of the slide member 826.
26b is provided, the operating rod 826a penetrates the hole 823a formed in the stopper 823 when the slide member 826 is in contact with the stopper 823, and the stopper 824 is in contact with the slide member 826 in contact with the stopper 824. The formed hole 824a is connected to the operation rod 826b.
Is designed to penetrate. Therefore, the operating rods 826a, 82 protruding from the front and rear stoppers 823, 824
By pushing 6b, the slide member 826 and the cam body 827 can be moved back and forth.

Further, as shown in FIGS. 4 and 5, a ball 841a biased upward to the center is provided on the upper surface of the base plate 841 so that the ball 841a is half exposed. On the lower surface, the ball 8 is located at a position where the slide member 826 contacts the stoppers 823 and 824.
Recesses 826c into which 41a fits are provided respectively. Therefore, the slide member 826 is attached to the stoppers 823, 8
At the position where it abuts against 24, the concave portion 8 of the ball 841a
The fitting of the slide member 826 regulates the movement of the slide member 826 to some extent, and the positioning is performed.

The electric wire chuck pallet constructed as described above is in the state shown in FIGS.
In the state where 27 is in contact with the stopper 824, the roller 821 contacts the front end portion of the cam surface 827a that does not bulge, so that the base member 813 of the clamp 810 is not expanded outward and the tension of the coil spring 815 is increased. Are in contact with each other and the clamp claw 811 is held in an open state as shown in FIG.

Therefore, in the groove 844a of the guide plate 844,
Set a plurality of insulation-coated wires and operate rod 826b
When is pushed forward, the cam body 827 moves forward. Along with this, the roller 821 is pushed by the bulging portion of the cam surface 827, and the base members 813 are separated from each other as shown in FIGS. 3, 5 and 9, so that as shown in FIG. The clamp claw 811 is closed, and the plurality of insulation-coated electric wires are reliably held.

As described above, since the movable members 831 of the movable cam member 830 can move inward relative to each other, for example, the number of insulating covered electric wires to be gripped is increased or a thick electric wire is used. Even when gripping, as shown in FIGS. 10 and 11, the protrusion 831 of the movable member 831 is provided.
The cam surface 827a formed by c enters inward and the clamp claw 811 is slightly opened, so that the increase in the thickness of the wire bundle can be easily absorbed.

As shown in FIG. 12, the free-flow conveyor 9 includes the wire rod supply positioning member 2, the wire twisting machine 3, the closed terminal feeder 4, the terminal crimping machine 5, and the crimping inspection machine 6
And a conveyor main body 910 which is installed on the front side of the closed terminal crimped wire discharger 7, and carries the wire chuck pallet 8 and conveys it from the wire rod supply positioning member 2 to the closed terminal crimped wire discharger 7, and the wire chuck. Pallet 8
Stop means 920 for stopping the electric wire chuck pallet 8 on the free flow conveyor 9 which is driven when the electric wire chucks come to their respective working positions, and fixing for lifting and fixing the stopped electric wire chuck pallet 8 from the conveyor main body 910. And means 930.

As shown in FIG. 12 and FIG. 13, the conveyor main body 910 is composed of two chains 912 extending in parallel to a gear 911 arranged at both ends of a main body frame 914. Is provided with some guide rails 913 so that the gears 911 do not hang down.

The stopping means 920 connects the piston rod 922 of the stopper cylinder 921 to the conveyor main body 91.
The wire chuck pallet 8 is brought into contact with the piston rod 922 and stopped at that position by projecting it between two parallel chains 0 of 0. Machine 3,
They are arranged in front of and behind the closed terminal feeder 4, the terminal crimping machine 5, the crimp inspection machine 6 and the closed terminal crimping wire discharging machine 7, respectively.
As described above, the stopping means 920 stops the electric wire chuck pallet 8 and then receives the work end signal from each working machine to retract the piston rod 922 to release the stopped state. There is.

The fixing means 930 is shown in FIGS.
As shown in FIG. 6, it comprises a lifter 932 which is moved up and down by a cylinder 931 and a pressing member 933 which presses and fixes the base plate 841 of the electric wire chuck pallet 8 by the lifter 932.

The lifter 932 is installed on the wire rod supply positioning member 2, the wire twisting machine 3, the closed terminal feeder 4, the terminal crimping machine 5, the crimping inspection machine 6, the closed terminal crimping wire discharger 7, and both ends. The wire chuck pallet 8 supply mechanism 41 and the wire chuck pallet 8 discharge mechanism 942 are provided on the outside of the chain 912, respectively, and the pressing member 93 corresponds to the lifter 932.
3 is supported by the main body frame 914.

The lifter 932 is provided with the cylinder 93.
Support plate 931 fixed to the first piston rod 931a
a guide pin 931d is slidably inserted into a guide tube 931c attached to the main body frame 914, and is attached to the support plate 931b so as to smoothly move up and down. Has been.

Further, as described above, the lifter 932 lowers after fixing the electric wire chuck pallet 8 and receives a work end signal from each working machine to release the fixed state. .

The supply mechanism 941 is provided at the end of the conveyor main body 910 on the side of the wire rod supply positioning member 2, and the electric wire chuck pallet 8 placed on the downward chain 912 is attached to the conveyor main body 910. A pull-out mechanism of the electric wire chuck pallet 8 that is pulled out toward the upper side, an elevating mechanism that lifts the electric wire chuck pallet 8 pulled out from the drawing mechanism to the upper position of the chain 912, and an electric wire chuck pallet 8 that is lifted by the elevating mechanism. Wire chuck pallet 8 sent out on the chain 912
And a sending mechanism of the.

The discharging mechanism 942 is provided at the end of the conveyor main body 910 on the closed terminal crimping electric wire discharging machine 7 side, and the electric wire chuck pallet 8 placed on the upward chain 912 is installed in the conveyor main body 910. A mechanism for pulling out the electric wire chuck pallet 8 to the side, an elevating mechanism for lowering the electric wire chuck pallet 8 pulled out from the drawing mechanism to the lower chain position, and a lower side for the electric wire chuck pallet 8 lowered by this elevating mechanism. And a delivery mechanism for the electric wire chuck pallet 8 to be delivered onto the chain 912.

In the free flow conveyor 9 configured as described above, the chain 912 is continuously driven to rotate in the clockwise direction in FIG. 12 at the time of operation, and therefore, the chain is fed by the feeding mechanism of the feeding mechanism 941. When the wire chuck pallet 8 is placed on the chain 912 above the conveyor body 910, the wire chuck pallet 8 moves from the wire rod supply positioning member 2 to the closed terminal crimp wire discharger 7 on the front side thereof.

Then, when the electric wire chuck pallet 8 comes to the front position of the wire rod supplying positioning member 2, as shown in FIG.
As shown in FIG. 4, the electric wire chuck pallet 8 is stopped at that position by the stopping means 20 which is already waiting in a state where the piston rod 922 is extended. Then, Fig. 1
As shown in FIG. 5, when the lifter 932 rises to lift the wire chuck pallet 8 from above the chain 912, the base plate 841 of the wire chuck pallet 8 is sandwiched between the pressing member 933 and the wire chuck pallet 8 as shown in FIG. Since the wire is fixed to the position, the wire is positioned by the wire rod supplying positioning member 2 and held by the wire chuck pallet 8.

After that, the lifter 932 descends, and then the piston rod 922 of the stopping means 920 retracts, so that the wire chuck pallet 8 is again conveyed to the wire twisting machine 3 by the conveyor body 910. Then, the same operation is repeated at each work position.

When the inspection of the crimping defect in the crimping inspection machine 6 is completed, the closed terminal crimping wire discharging machine 7 discharges the closed terminal crimping wire to the product stocker 7d, and then the wire chuck pallet 8 is sent to the discharging position. The discharge mechanism 94 is lifted by the lifter 932.
The electric wire chuck pallet 8 is discharged from the conveyor main body 910 by the pull-out mechanism of No. 2.

The discharged electric wire chuck pallet 8 is transferred to the conveyor main body 910 by the elevating mechanism of the discharging mechanism 942.
Of the lower chain 9 by the delivery mechanism.
It is placed on the sheet 12 again and conveyed to the supply side of the electric wire chuck pallet 8. Then, the wire chuck pallet 8 is pulled out by the pull-out mechanism of the supply mechanism 941 and is raised again laterally of the conveyor body 910 by the elevating mechanism.
It stands by as the electric wire chuck pallet 8 for supply.

The wire rod supply positioning member 2 is for keeping the protruding length constant when the electric wire chuck pallet 8 holds the electric wire.
It is installed next to. This wire rod supply positioning member 2
As shown in FIG. 17, a disk-shaped contact plate 210 that abuts the tip of an electric wire is provided, and this contact plate 210 is fixed to a support member 230 by screws 220 so as to be able to move back and forth.

Therefore, by rotating the contact plate 210, the contact plate 210 is set at a predetermined position.
0 is held by the wire chuck pallet 8 with the tip of the wire abutting.

The core wire twisting machine 3 is a machine for twisting the core wire portions of the plurality of wires gripped on the wire check pallet 8 by twisting and connecting them to each other. As shown in FIG. 5, a twisting machine main body 310 for twisting the stripped core portion a of the electric wire A gripped by the electric wire chuck pallet 8 and the twisting machine main body 310 are moved forward and backward with respect to the electric wire A. It comprises an advancing / retreating drive mechanism 320 and a control means (not shown) for controlling the twisting machine main body 310 and the advancing / retreating drive mechanism 320.

Like the conventional core wire twisting machine, the twisting machine main body 310 holds a plurality of holding members 311 for holding the core wire portion a of the stripped electric wire A, and the pressing members 311 for connecting the core wire portion of the electric wire A. Motor 312 to rotate to the center
And the pressing member 311 has the electric wire insertion portion 31.
By twisting the core portion a of the electric wire A inserted in 3 while pressing it, the core portion a is twisted. A power supply device (not shown) having a speed controller is connected to the motor 312 so that the rotation speed can be adjusted.

The advancing / retreating drive mechanism 320 includes a frame 33.
A slide mechanism 321 including a guide lot 322 supported before and after 0 and a slide member 323 slidable forward and backward along the guide rod 322 while penetrating the guide rod 322, and the slide member 323 is moved forward and backward. It is composed of a ball screw mechanism and a driving means (not shown) including a motor.

A support plate 324 is attached to the lower surface of the slide member 323, and a front panel 325 having an insertion hole 325a for the electric wire A is provided at the front end of the support plate 324. In addition, the support plate 324 has a holding member 32 for the twisting machine main body 310.
6 is attached, and the twisting machine main body 310 can be attached to the support plate 324 so that the wire insertion portion 313 faces the insertion hole 325a of the front panel 325.

Core wire twisting machine 3 constructed as described above
When the electric wire chuck pallet 8 stops at the front position while holding the electric wire A, as described above, the tip of the electric wire A is always held at a fixed position. Therefore, the forward / backward drive mechanism is instructed by the command from the control means. 320 is activated and FIG.
As indicated by the chain double-dashed line, the twisting machine main body 310 advances and the core portion a of the electric wire A is inserted into the twisting machine main body 310 by a predetermined amount.

Next, the pressing member 31 is pressed by the motor 312.
1 is rotationally driven, and the twisting operation is started by the twisting machine main body 310, and the advancing / retreating drive mechanism 320 is operated to retract the twisting machine main body 310. That is, the twisting machine main body 310 moves backward, and the core wire portion a is twisted. Therefore, even when twisting a plurality of electric wires having different core wire diameters, it is possible to carry out uniform twisting without causing the inconvenience that only a thin core wire is wound around a thick core wire at a certain position.

The closed terminal feeder 4 is for inserting the closed terminals into the cores of a plurality of electric wires twisted by the wire twisting machine 3, and for feeding a large number of closed terminals one by one. And a closed terminal transport device 4b that sucks and transports the closed terminals supplied from the closed terminal delivery device 4a one by one, and the closed terminal transported by the closed terminal transport device 4b is gripped to core the wire. It is composed of a closed terminal insertion device 4c to be inserted into the portion.

As shown in FIGS. 20 to 22, the closed terminal feeding device 4a includes a ball feeder 410 composed of a rotary drum body 411 and a rotary drive mechanism 415 arranged on a substrate 430, a linear guide rod 421 and a ball guide 410. It is composed of a straight feeder 420 composed of a vibration applying mechanism 427.

The rotary drum body 411 is shown in FIGS.
2, as shown in FIG. 23 and FIG. 24, it is configured in a bottomed cylindrical shape having a bottom portion 412 whose one end side in the axial direction is closed, and a circular shape centering on the axial center at the other end side in the axial direction. The opening 413 is formed. In addition, the rotary drum body 411
On the inner peripheral surface of the bottom portion 412 side, a plurality of (eight in this embodiment) scraping blades 414 are provided at predetermined intervals in the circumferential direction and project radially inward at a predetermined angle.

As shown in FIGS. 21 and 22, the rotary drive mechanism 415 is used to mount the pedestal 41 on the substrate 430.
6 and the drive motor 4 attached to this stand 416
17 and four drum support parts 41 rotatably supported on the upper part of the mount 416 to support the rotary drum body 411 so that the opening 413 side is higher than the bottom part 412 side.
8 and the rotary drum body 411 mounted on each drum support portion 418 are driven to rotate around the axis thereof, the rotation of the drive shaft of the drive motor 417 is rotated.
18 and a power transmission unit 419 such as a belt transmission mechanism.

As shown in FIGS. 20 and 21, one end of the linear guide rod 421 is inserted into the rotary drum body 411 through the opening 413, and the straight guide rod 421 is slightly inclined downward from one end to the other end. In this state, it is detachably attached to the upper surface of the vibration applying mechanism 427 arranged on the substrate 430.

A linear alignment groove 422 is formed on the upper surface of the straight guide rod 421 along the longitudinal direction thereof, and the width of the alignment groove 422 is as shown in FIGS.
As shown in FIG. 6, the diameter of the closed terminal A is slightly larger than the diameter of the head portion b and smaller than the diameter of the introduction portion a. Therefore, as shown in FIG. 25B, the closed terminals A are aligned with the head b fitted in the alignment groove 422, and the vibration applying mechanism 42
Due to the vibration applied by the
It is configured to move in sequence from one end side to the other end side along the line 2.

An inclined surface 423 is formed on one end side of the straight guide rod 421 by cutting off the upper portions on both sides of the alignment groove 422 over substantially the entire area inserted into the rotary drum body 411. In addition,
The inclined surface 42 is provided on the end side of the straight guide rod 421.
Introducing plates 424 that are inclined upward from the upper ends of the respective Nos. 3 are attached.

Further, in the straight guide rod 421, a portion where the inclined surface 423 is not formed is shown in FIG.
As shown in (b) and (b), a guide plate 426 is held above the alignment groove 422 by a supporting member 425 to prevent the closed terminal A from falling out of the alignment groove 422.

The closed terminal feeding device 4 configured as described above.
a, the rotary drum body 41 of the ball feeder 410
A large number of closed terminals A accommodated in the No. 1 are lifted by the scraping blades 414 as the rotating drum body 411 is rotated by the driving of the motor 417, and fall onto the upper surface of the straight guide rod 421 of the straight feeder 420.

At this time, the closed terminal A is efficiently collected on the alignment groove 422 by the introduction plate 424, and the heavy head b of the closed terminal A is fitted into the alignment groove 422. Here, the closed terminal A that has not been fitted into the alignment groove 422 properly slides down from the straight guide rod 421 due to the existence of the inclined surface 423, and returns to the inside of the rotary drum body 411 again.

On the other hand, the alignment groove 4 of the straight guide rod 421.
The closed terminals A fitted and aligned in the 22 are surely moved from one end side to the other end side of the rectilinear guide rod 421 by the vibration given by the vibration applying mechanism 427, and the closed terminal transfer devices 4b are transferred one by one. Sent to.

As shown in FIG. 27, the closed terminal transporting device 4b receives the closed terminals A sent from the closed terminal sending device 4a in an aligned state and sorts them one by one.
0 and the closed terminal A sorted by this sorting mechanism 440
And a transport mechanism 460 for sucking and transporting.

The sorting mechanism 440 is shown in FIGS. 28 and 29.
27, a fixed member 441 fixed on the base member 450, and a movable member supported by the base member 450 slidably in the direction orthogonal to the paper surface of FIG. 27 in a state of being in contact with an end surface of the fixed member 441. And a member 444.

The fixed member 441 is provided with a slight gap between it and the straight feeder 420 of the closed terminal feeding device 4a, and the movable member 444 slides from one end surface facing the end surface of the straight feeder 420. A receiving groove 442 for the closed terminal A corresponding to the alignment groove 422 of the straight feeder 420 is formed over the other end surface in contact with the straight feeder 420 so that the closed terminal A supplied in an aligned state by the straight feeder 420 can enter as it is. Has become.

A guide plate 443 for covering the closed terminal A is attached to the upper surface of the fixing member 441 so that the supplied closed terminal A does not drop from the receiving groove 442.

The movable member 444 is the base member 4
A slide member 445 that slides along a guide rail 451 fixed to the slide member 50 and a sorting member 447 that is attached to the slide member 445 via a support member 446. By sliding the separating member 44
7 is a closed terminal A along the other end surface of the fixing member 441.
It is designed to slide in a direction orthogonal to the alignment direction of.

The sorting member 447 is the fixing member 44.
1 is cut away to form a housing portion 448 into which the small-diameter head a of the closed terminal A is fitted, and the closed portion is supplied through the receiving groove 442 of the fixing member 441. Only the first one of the terminals A is accommodated.

A stopper member 449 for positioning the closed terminal A accommodated therein is erected on the upper surface of the sorting member 447, and the accommodated closed terminal A falls off above the accommodation portion 448. In order to prevent this, a part of the guide plate 443 described above projects.

As shown in FIG. 27, the transport mechanism 460 has a fixed base member 468 to which a rotary actuator 461 is attached, and a rotary shaft 461a of the rotary actuator 461 is attached to the shaft joint 46.
2 is connected to one end of a power transmission shaft 464 rotatably supported by a bearing 463. An air cylinder 466 is attached to the other end of the power transmission shaft 464 via a support member 465, and a tip end portion of a piston rod 466a which is moved forward and backward by the air cylinder 466 has a housing portion of the sorting mechanism 440. A suction nozzle 467 to be inserted into the closed terminal A housed in 448 is attached.

Although not shown, the suction nozzle 467 is connected to a suction device such as a blower via a tube and can suck the closed terminal A.

As shown in FIG. 28, in the closed terminal conveying device 4b configured as described above, the closed terminal A supplied by vibration from the straight feeder 420 of the closed terminal feeding device 4a is the accommodating portion of the movable member 444. When accommodated in 448, as shown in FIG. 30, the movable member 444 moves in the X direction and separates only one closed terminal A. At this time, the end of the receiving groove 442 of the fixed member 441 is moved to the movable member 444.
Since it is closed by the sorting member 447, the closed terminal A in the receiving groove 442 is held in that position.

Next, as shown in FIG. 31 (a), the piston rod 466a of the air cylinder 466 extends and the suction nozzle 467 at the tip is inserted into the closed terminal A and suction is started. Then, as shown in FIG. 3B, the piston rod 466a is moved upward to close the closed terminal A.
Lift up. At this time, the movable member 444 returns to the initial position, and as shown in FIG. 28, the new closed terminal A is stored in the storage portion 448 of the sorting member 447.

Finally, the rotary actuator 4
As the rotary shaft 461a of the rotary shaft 61 rotates, as shown in FIG. 32, the air cylinder 466 and the suction nozzle 46.
7 rotate 90 degrees together, and the suction nozzle 467 is in a state of facing the clamp 476 of the closed terminal insertion device 4c. And the piston rod 4 of the air cylinder 466
The extension of 66a advances the closed terminal A sucked by the suction nozzle 467, and the head a thereof is gripped by the clamp 476.

After that, the suction nozzle 467 stops suction, releases the closed terminal A, and returns to the original state.

In the closed terminal inserting device 4c, as shown in FIG. 33, the base plate 4 is attached to the rotary shaft 471 extending in the vertical direction.
72 is horizontally supported, and a rotary cylinder 473 that can move the piston rod 474 forward and backward while rotating the piston rod 474 is attached to the base plate 472.

A support arm 475 is attached to the tip of the piston rod 474 of the rotary cylinder 473.
Clamp 476 for gripping the head of the closed terminal A via
Are mounted so that the clamp 476 rotates 90 ° in the forward position with respect to the initial position.

Closed terminal insertion device 4 configured as described above
As shown in FIG. 36, c is a clamp 476 for the head of the closed terminal A that is suctioned and conveyed by the closed terminal conveying device 4b.
After gripping by, the whole closed terminal inserting device 4c rotates 90 ° in the horizontal state as the rotating shaft 471 rotates by the driving means (not shown). In this state, as shown in FIG. 33, the introduction part of the closed terminal insertion device A faces the tip portion of the electric wire B gripped by the clamp claw 811 of the electric wire chuck pallet 8.

Next, as shown in FIG. 34, since the piston rod 474 moves forward while rotating 90 °, the closed terminal A also rotates 90 ° from the solid line state to the alternate long and short dash line state as shown in FIG. While moving forward, the core wire portion b of the electric wire B is relatively inserted into the closed terminal A. However, it is necessary to set the rotation direction of the piston rod 474 at this time so as to coincide with the twisting direction of the core portion b of the electric wire B.

Then, with the electric wire B inserted in the closed terminal A, the clamp 476 retracts by separating the closed terminal and returns to the original state to receive the next closed terminal.

In this embodiment, the piston rod 4
Rotary cylinder 473 that moves forward and backward while rotating 74
However, the present invention is not limited to this, and the rotation driving means and the advance / retreat driving means may be separately provided.

The terminal crimping machine 5 is the closed terminal feeder 4
By crimping the closed terminal inserted into the core wire portion of the electric wire by the above, the crimping is performed on the core wire portion, and the crimping tool and its driving means are provided.

The crimping inspection machine 6 is for detecting the presence or absence of a terminal and the protrusion of the stripped core wire from the closed terminal. As shown in FIG. By sandwiching the vicinity of the connection of the electric wire with the closed terminal by the electrode 610, the crimping failure can be detected.

As shown in FIGS. 40 to 42, the closed-terminal crimped wire discharger 7 includes the wire chuck pallet 8
Guide rod 7a extending from the rear of the electric wire discharging position of the electric wire chuck pallet 8 to the upper part of the conveying path 8a of the electric wire chuck pallet 8 to the product stocker 7d and the piston rod of the drive cylinder 7a 'mounted on the guide rod 7a. And a gripping mechanism 7b for the closed-terminal crimped electric wire A which is fixed to and is moved back and forth along the guide rod 7a.

The gripping mechanism 7b includes a chuck member 7c and a drive cylinder 7b 'for moving the chuck member 7c up and down.
And the chuck member 7c allows the closed terminal crimped electric wire A to be gripped.

The product stocker 7d is a stocker main body 710 composed of two rails 711 arranged in parallel with each other with a fixed gap, and the stocker main body 710.
And a supporting member 720 for fixing the front end plate 1a of the automatic closed terminal processing machine 1 to each other, and the width of the gap is smaller than the outer diameter of the electric wire introducing portion a ′ of the closed terminal a and the width of the electric wire bundle b. It is larger than the outer diameter.

As shown in FIGS. 38 and 39, the stocker main body 710 is curved 90 ° in the longitudinal direction so that the plane including the two rails 711 is curved, and one end side thereof is A storage line portion 7 which forms an introduction portion 712 of the closed terminal crimped electric wire A extending vertically along the front plate 1a and has the other end extending horizontally along the front plate 1a.
13 is formed.

The introduction portion 712 is twisted 90 ° in the middle thereof so that the gap between the rails 711 faces the front plate 1a.
The upper part of the wire is a closed terminal crimped electric wire A by the chuck member 7c.
The stocker main body 710 is attached to the front plate 1a by the support member 720 so as to correspond to the discharge position of.

Further, as shown in FIGS. 38 and 39,
Below the accumulator 713, the closed terminal crimped wire A discharged to the introduction part 712 is smoothly sent to the accumulator 713, so that the end of the closed terminal crimped wire A comes into contact with the conveyor 7
14 are provided. Since the closed terminal crimped electric wire A is fed from the introduction section 712 to the storage line section 713 by inertia, the conveyor 714 is not always necessary, but it is preferable to provide it.

The steps from discharge of the closed terminal crimped wire A to storage will be described below.

First, as shown by the solid line in FIGS. 40 and 42, when the wire chuck pallet 8 holding the closed terminal crimped wire A in which the closed terminal is crimped to the wire is stopped at the discharging position, the closed terminal crimped wire is discharged. The gripping mechanism 7b of the machine 7 descends,
The chuck member 7c grips the wire bundle b portion near the closed terminal a of the closed terminal crimped electric wire A.

Next, after the gripping mechanism 7b is raised, the guide rod 7
It moves forward along a and stops at the upper part of the introduction part 712 of the product stocker 7d as shown by the alternate long and short dash line in the figure. At this time, the closed terminal crimped electric wire A is sent out so that the longitudinal direction thereof is oriented in a direction orthogonal to the front plate 1a of the automatic closed terminal processing machine 1.

Then, when the closed terminal crimping wire A is released after the gripping mechanism 7b descends again, the closed terminal crimping wire A drops and the wire bundle b portion near the closed terminal a is fed into the gap between the rails 11. Be done.

In this way, the closed terminal crimped electric wire A fed into the product stocker 7d is oriented in the middle of the introducing portion 712 so that the longitudinal direction of the electric wire bundle b is oriented in the direction orthogonal to the front plate 1a. While being changed, it is supplied to the power storage line portion 713 along the front plate 1a, where the end portion contacts the conveyor 714 and is conveyed to the end portion side of the power storage line portion 713 with the help of this conveyor 714.

The gripping mechanism returns the initial position after sending the closed terminal crimped electric wire A to the stocker body 710, and the above operation is repeated thereafter, so that the closed terminal crimped electric wire A is successively transferred to the storage line portion 13. The rail 711 is transported and the closed terminal a is
The electric wire bundle b is hooked on the upper side and stored in a suspended state.

43 and 44 show another embodiment. In this embodiment, the product stocker 7d similar to the above embodiment is provided with the extension stocker 730. Therefore, the description of the product stocker 7d on the main body side is omitted, and only the extension stocker 730 will be described.

Like the product stocker 7d, the extension stocker 730 is also composed of a stocker body 731 composed of two rails 732 and a support member 733 for attaching the stocker body 731 to the front plate 1a of the automatic closed terminal processing machine 1. Has been done.

In the stocker main body 731, two rails 732 are arranged in parallel straight lines with the same gap as the gap between the rails 711 of the product stocker 7d, and the storage line portion 713 of the product stocker 7d is extended. To do.

The support member 733 is also the support member 72.
Although the shape is substantially the same as that of 0, the magnet 7 is not screwed to the front plate 1a like the support member 720.
The suction force of 34 attracts and fixes the front plate 1a.

Therefore, as shown in FIG. 43, the extension stocker 730 is constructed so that the end of the stocker 731 is brought into abutment with the end of the storage line 713 of the product stocker 7d.
Is attached to the front plate 1a, the product stocker 7d
The closed-terminal crimped electric wire A supplied from the introduction part 712 of is sent to the extension stocker 730 by the conveyor 714, and is sequentially accumulated from the extension stocker 730.

Here, when the extension stocker 730 is filled with the closed terminal crimped electric wire A, the extension stocker 730 itself is removed from the front plate 1a as shown in FIG. 45 and supplied or stored in the next step in this state, A new extension stocker 730 is attached to the front plate 1a.

As described above, when the extension stocker 730 is provided, the stored closed terminal crimped electric wire A can be stored and transported together with the extension stocker 730, which is very convenient to handle.

In this extension stocker 730, the support member 373 is fixedly attached to the stocker body 371, and the entire extension stocker 730 is attached to the front plate 1 of the automatic closed terminal processing machine 1.
Although it is detachably attached to a, it is not particularly limited to this, and for example, a support member may be fixedly attached to the front plate 1a, and the stocker body may be detachably attached to this support member.

[0105]

As described above, the automatic closed terminal processing machine of the present invention is provided with a wire twisting machine, a closed terminal feeder, a terminal crimping machine and a closed terminal crimping wire discharge machine, and the front side of these machines.
Since the wire gripping means conveys the wire from the wire twisting machine to the closed-terminal crimping wire discharging machine and supplies the wire to each work position, a series of steps from the core wire twisting step to the closed terminal crimping step is adopted. Is automated, and high quality products can be produced efficiently. In particular, the quality is made uniform and the physical burden on the operator is eliminated as compared with the conventional manual work.

Also, in the case where the wire rod supply positioning member is provided, the electric wire is supplied to each working machine in a constant state, so that crimping defects and the like are eliminated and the quality can be made more uniform.

Further, in the case where the crimp inspection machine is provided, defective products can be removed in the production process, so that only good products can be surely supplied.

[Brief description of drawings]

FIG. 1 is a schematic view of an automatic closed terminal processing machine showing an embodiment according to the present invention.

FIG. 2 is a front view showing an electric wire chuck pallet in the automatic closed terminal processing machine.

FIG. 3 is a front view showing an electric wire chuck pallet in the automatic closed terminal processing machine.

FIG. 4 is a side view of the above.

FIG. 5 is a side view of the above.

FIG. 6 is a plan view showing the above clamp.

FIG. 7 is a plan view showing the cam mechanism of the above.

FIG. 8 is a view showing the relationship between the above clamp and a cam mechanism.

FIG. 9 is a view showing the relationship between the above clamp and a cam mechanism.

FIG. 10 is a diagram showing a relationship between the movable cam member and the clamp claws of the same.

FIG. 11 is a diagram showing a relationship between the movable cam member and rollers of the same.

FIG. 12 is a schematic view showing a free flow conveyor in the automatic closed terminal processing machine.

FIG. 13 is a plan view showing details of the above.

FIG. 14 is an operation diagram showing a stopping operation of the above wire chuck pallet.

FIG. 15 is an operation diagram showing a stopping operation of the above electric wire chuck pallet.

FIG. 16 is an operation diagram showing a stopping operation of the above electric wire chuck pallet.

FIG. 17 is a side view showing a wire rod supply positioning member in the automatic closed terminal processing machine.

FIG. 18 is a side view showing a core wire twisting machine in the automatic closed terminal processing machine.

FIG. 19 is a front view of the above.

FIG. 20 is a plan view showing a closed terminal feeding device in the closed terminal feeder of the automatic closed terminal processing machine.

FIG. 21 is a side view of the above.

FIG. 22 is a front view of the above.

FIG. 23 is a detailed view showing the rotary drum body of the above.

FIG. 24 is a cross-sectional view taken along line XX of FIG.

FIG. 25 is a diagram showing details of a straight guide rod.

FIG. 26 is an end view showing a straight guide rod.

FIG. 27 is a side view showing a closed terminal conveying device in the closed terminal feeder of the automatic closed terminal processing machine.

FIG. 28 is a plan view showing the sorting mechanism of the above.

FIG. 29 is a side view showing the sorting mechanism of the above.

FIG. 30 is a plan view showing a movable state of the movable member in the above sorting mechanism.

FIG. 31 is a side view showing the movement of the suction nozzle in the transport mechanism of the above.

FIG. 32 is a side view showing the movement of the suction nozzle in the transport mechanism of the above.

FIG. 33 is a side view showing a closed terminal insertion device in the closed terminal feeder of the automatic closed terminal processing machine.

FIG. 34 is a side view showing a state in which a core portion of the above electric wire is relatively inserted in a closed terminal.

FIG. 35 is a front view showing the movement of the above clamp.

FIG. 36 is a plan view showing the delivery of a closed terminal that is suctioned and conveyed by the closed terminal conveying device.

FIG. 37 is a view showing a crimp inspection machine of the automatic closed terminal processing machine.

FIG. 38 is a front view showing a product stocker in the closed terminal crimped wire discharger of the automatic closed terminal processing machine.

FIG. 39 is a side view of the above.

FIG. 40 is a side view showing the entire closed terminal crimping wire discharger in the automatic closed terminal processing machine.

FIG. 41 is a front view of the above.

FIG. 42 is a plan view of the above.

FIG. 43 is a front view showing another embodiment.

FIG. 44 is a front view showing the above extension stocker.

FIG. 45 is a cross-sectional view showing a closed terminal.

[Explanation of symbols]

 1 Automatic closed terminal processing machine 2 Wire rod positioning member 3 Wire twisting machine 4 Closed terminal feeder 4a Closed terminal feeding device 4b Closed terminal conveying device 4c Closed terminal insertion device 5 Terminal crimping machine 6 Crimping inspection machine 7 Closed terminal crimping wire discharge Machine 7a Guide rod 7b Gripping mechanism 7d Product stocker 8 Electric wire chuck pallet 9 Free flow conveyor 210 Contact plate 310 Kink machine body 320 Advancement / retraction drive mechanism 330 Frame 410 Ball feeder 420 Straight feeder 430 Board 440 Sorting mechanism 450 Base member 460 Transfer mechanism 610 Electrode 710 Stock car body 720 Support member 730 Extension stocker 810 Clamp 820 Cam mechanism 840 Body frame 910 Conveyor body 920 Stopping means 930 Fixing means 941 Supply mechanism 942 Discharging mechanism

Claims (3)

[Claims] 1. An electric wire gripping means for gripping a plurality of stripped electric wires, and an electric wire twisting machine for twisting core portions of the plurality of electric wires gripped by the electric wire gripping means with each other.
A closed terminal feeder that feeds the closed terminals one by one to supply the closed terminals to the twisted core wire portion, a terminal crimping machine that crimps and fixes the closed terminals to the core wire portion, and a closed terminal is crimped and fixed to the core wire portion. A closed-terminal crimping wire discharger for discharging the closed-terminal crimping wire, and a wire twisting machine, a closed-terminal feeder, a terminal crimping machine, and a closed-terminal crimping wire discharger are arranged on the front side of the wire gripping means. An automatic closed-terminal processing machine, comprising: a conveying unit that conveys the electric wire to each work position by conveying the electric wire from the wire twisting machine to the closed-terminal crimp electric wire discharging machine. 2. The automatic closed terminal processing machine according to claim 1, further comprising a wire rod supply positioning member having a contact plate that abuts a tip of the electric wire when the electric wire holding means holds the electric wire. 3. A crimping inspection machine for detecting a crimping defect by sandwiching the vicinity of connection of the electric wire with the closed terminal with an electrode before discharging the crimped electric wire with closed terminal.
Alternatively, the automatic closed terminal processing machine described in 2.