JPH0360199B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention is a wiring hand such as an automatic wiring device that automatically wires coated wires to electrical appliances such as fluorescent lamps, and is used to remove the coating from the terminals of the wires, form the wires, and The present invention relates to a wire end processing device that performs insertion into a device, etc.

[Conventional technology]

In recent years, automation and unmanned processing of processing and assembly processes have been progressing in various industries, and the progress has been particularly remarkable in the electrical equipment manufacturing industry. As part of this type of automation, automatic wiring devices are being developed that automatically wire electrical appliances, such as fluorescent lights, on tables or conveyors.

This type of automatic wiring device sends out a bobbin-wound wire, cuts it to a predetermined length, moves it to an electrical appliance, peels off the coating on the end of the wire, and removes the stripped core wire. There is a need for something that can automate the entire series of operations, including inserting it into the terminal section of an electrical appliance.

[Problem that the invention seeks to solve]

However, until now, there has been no system that consistently automates the process from supplying the wire to inserting it into the terminal, as described above, and in particular, there is
Because it is difficult to automate a series of wire terminal processing operations such as forming and inserting devices into terminals,
This has hindered the practical application of automatic wiring devices.

The present invention has been made in view of the above points, and provides an electric wire terminal processing device for a wiring hand that enables automatic terminal processing of electric wires held at both ends and achieves consistent wiring automation. It is intended to.

[Means for solving problems]

In order to achieve such an objective, the present invention
Wire gripping means supported at the tip of the arm so as to be movable up and down and having a finger at the lower end that can be opened and closed;
A wire sheath stripping means is provided at the tip of the arm and has a half-shaped blade that is supported movably in the axial direction of the wire and can be opened and closed, and the V-groove at the tip faces between the finger and the blade. The electric wire end forming guide means is biased in the downward direction by a spring member, and pivotably supported by the electric wire gripping means so as to be freely up and down and rotatable, and the turning operation is interlocked with the up and down movement by a cam mechanism.

[Effect]

With the above configuration, when the open blade enters and closes the end of the electric wire that has been gripped and conveyed with fingers from the previous step, etc., the covering of the end of the wire is cut in a circular shape, so the blade can be removed. The coating will peel off. Therefore, when the electric wire end forming guide means is rapidly lowered by the spring force of the spring member, the peeled core wire portion is bent and formed, so when the electric wire gripping means and the electric wire end forming guide means are lowered together, The V-groove guides and connects the terminal to the terminal portion of the instrument, and when the V-groove moves up and down, the rotational movement is interlocked with the cam mechanism, so that guidance, connection, and withdrawal from the electric wire are performed well.

〔Example〕

1 to 17 show an embodiment of the wire terminal processing device for a wiring hand according to the present invention, FIG. 1 is a front view of the tip of the wiring hand, and FIG. FIG. 3 is a perspective view of the cutter, FIG. 4 is a perspective view of the lifting and lowering drive unit of the finger holder and the horizontal movement drive unit of the cutter holder, FIG. 5 is a perspective view of the wire forming unit, and FIG. 6 is a perspective view of the present invention. Fig. 7 is a schematic perspective view of the wire supply device and length measuring device, Fig. 8 is a schematic plan view of the instrument holding device, and Fig. 9 is a schematic diagram of the electrical appliance that has been wired. 10 and 11 are respectively sectional views of the electric appliance into which the core wire of the electric wire is inserted, and FIG. 12 is a perspective view of the finger and guide claw shown to explain the movement of the guide claw. side view, with
Figure 13 is an explanatory diagram of the electric wire supply and length measurement operation,
Figures 4 and 15 are explanatory diagrams of the wire conveying operation, Figure 16 is an explanatory diagram of the wire forming and connecting operation, and Figure 17 is an explanatory diagram of the wire forming and connecting operation.
The figure is an explanatory diagram of the operation of the guide claw.

First, the overall outline will be explained based on Figure 6.
A pedestal 1 housing a control device is fixed on the floor, and a pallet transfer table 2 is mounted on the floor.
and three pallets 3A, 3B, which move on it.
An instrument holding device 4, which is composed of 3C and which holds and positions a wired instrument, is provided. on the other hand,
On one side of the pedestal 2, there is provided a storage container 5 for storing a bobbin-wound wire, a tension applying section 7 that pulls out the wire 6 from the storage container 5 and applies a predetermined tension, and a plurality of rollers. An electric wire supply device 9 consisting of a strainer 8 for removing bends is arranged. Further, on the rear end of the pedestal 1, there is provided an elongated box-shaped length measuring table 10 and a pair of wires 6 that hold the electric wire 6 sent out from the wire guide section 7, and only one of which moves along the groove of the length measuring table 10. A length measuring device 12 consisting of grippers 11A and 11B is provided. Further, behind the length measuring device 12, a hand drive unit 15 is disposed, which includes a traveling platform 13 in which a transmission device is housed, and motors 14, 15 for driving the transmission device supported by this traveling platform 13. This hand drive section 15
A pair of wiring hands 1 are mounted on the running base 13 and are each independently driven from the hand driving unit 15 side so as to move in the longitudinal direction and in the direction orthogonal to the longitudinal direction.
6 and 17 are supported in parallel.

First, the wire supply device 9 and the length measuring device 12 will be explained based on FIGS. 6 and 7. The tension applying unit 7 of the wire supply device 9 includes a pair of upper and lower guide rollers 18 and 19 for feeding the wire 6 at a predetermined speed;
The strainer 8 is provided with rollers 20 that apply tension to the electric wire 6, and the strainer 8 houses a plurality of rollers 21 that alternately pinch the sent-out electric wire 6 from above and below to remove its curls. . A belt 22 is stored in the length measuring stand 10 of the length measuring device 12, stretched between left and right pulleys 23 and 24, and is driven by a motor 25 to run in forward and reverse directions at predetermined timing. It is composed of The gripper 11B is fixed to the belt 22 and protrudes upward from the groove of the measuring table 10, and the gripper 11A is fixed to the measuring table 10 side and is attached to the measuring table 10.
It protrudes upward from the 0 groove. Furthermore, a pair of cutters 26 and 27 are disposed near the gripper 11A, and are driven by a drive device (not shown) to move up and down.
It is configured to cut the electric wire 6 held by the tip holding portion 7 to a predetermined length.

Next, the wiring hands 16 and 17 and the hand driving section 15 that drives them will be explained. Although the left and right wiring hands 16 and 17 operate at different timings, they have the same configuration, so the wiring hand 16 will be described below with reference to FIGS. 1 to 4 to 6. The wiring hand 16 has a horizontal right arm 28 that is driven by the motor 15 to move in the left-right direction and is driven by a motor (not shown) to move in the front-back direction.
A support plate 29 shown in FIG. 4 and a pair of sliding stands 30, 31 are integrally formed and fixed at the tip thereof. The sliding table 30 is vertically movably fitted into a pair of guide rods 32 supported by the support plate 29.
It is screwed onto a threaded rod 34 that is rotated by a motor 33 on the side, and is configured to move up and down as the motor 33 rotates. In addition, the sliding table 31 is connected to the support plate 2.
It is fitted in a pair of guide rods 35 supported by the support plate 9 so as to be able to move left and right, and is also fixed to a piston rod 37 of an air cylinder 36 on the side of the support plate 29, so that it can move left and right as the piston rod 37 advances and retreats. ing. And sliding table 3
A vertical prismatic finger holder 38 that moves up and down together with this is fixed to the sliding table 31, and a vertical prismatic cutter holder 39 that moves left and right together with this is fixed to the sliding table 31. It is fixed parallel to 38. An air cylinder 40 is attached to the fixing plate 4 on the upper end surface of the finger holder 38.
1, and a stopper 43 is fixed to the lower end of the piston rod 42. Further, a pair of guide rods 45 are fixed in parallel between the support plate 41 and each of the pair of rod receivers 44 protruding from the finger holder 38, and these guide rods 45 have a central through hole 46a. A block 46 through which a piston rod 42 passes is supported so as to be vertically movable. This block 46 is regulated from descending by having a pin 48 supported by inverted L-shaped stoppers 47 fixed to both sides of the cutter holder 39, and the block 46 and the pin 49 on the finger holder 38 side are connected to each other. The pin 48 is brought into pressure contact with the stopper 47 by a tension spring 50 stretched between them. 51
The upper end of the holder 3 is pivotally supported by a block 46.
A guide claw hanging down between 8 and 39 is pressed against a stopper 54 on the finger holder 38 side by a tension spring 53 stretched between it and a pin 52 on the finger holder 38 side, and its rotation is restricted. On both sides of the part where the lower end hook-shaped part faces, there are fingers 5.
5 and a cutter 56 are fixed to the lower surface of the finger holder 38 and the lower surface of the cutter holder 39, respectively. Of these, the fingers 55 are formed of a pair of members formed in an inverted L shape, and are configured to be opened and closed by an air cylinder (not shown) or the like to clamp the end of the electric wire 6 as shown in FIG. has been done.
The hook-shaped tip of the guide claw 51 is provided with a V-groove 51a for guiding the electric wire 6 into the wire insertion slot, which will be described later.This guide claw 51 is also integrated with the finger holder 38 that moves up and down as described above. It moves up and down. Further, the side surface of the guide pawl 51 is formed into a plate cam 51b so that the rotational movement is linked to the vertical movement of the guide pawl 51. On the other hand, the cutter 56, like the finger 55, is formed of two members that can be opened and closed in the horizontal direction using an air cylinder (not shown), etc., and the cutter 56 has a circular hole at its tip that cuts the sheath of the electric wire 6 in a circular shape when closed. A blade body 57 is provided. Since the cutter holder 39 is configured to move left and right by the air cylinder 36 as described above, the cutter 56 also moves left and right, so that the cutter holder 39 can move left and right with respect to the protruding end of the covered wire 6 held by the fingers 55. When the cutter 56 moves forward in an open state and then closes, the covering is cut into an annular shape, and when the cutter 56 retreats from this state, the covering is peeled off.
Also, due to the retreat of the cutter holder 39, the stopper 4
7 is released, the guide pawl 51 descends under the force of the tension spring 50, and as shown in FIG.
The coating is formed by bending the peeled end portion into an L-shape. The fingers 55 are also opened and closed during length measurement and cutting using the cutter 26 described above.

Although the wiring hand 16 has been described above, the wiring hand 17 also has the same configuration and is formed symmetrically with respect to the left and right sides. In other words, wiring hand 1
7, the cutter 56, which was on the left side in FIG. 3, is arranged on the right side. Both wiring hands 16 and 17 convey the electric wire 6 by independently moving the arms 28 back and forth and left and right according to commands from the control device, and the operation thereof will be explained in detail later in the explanation of the operation.

Next, the instrument holding device 4 will be explained based on FIGS. 6, 8, and 9. Pallet transfer table 2-4
At the corner, as shown in FIG. 7, there is an air cylinder 58,
59, 60, and 61 are arranged, and pallet 3
A, 3B, and 3C are configured to be alternately moved to a wiring work position indicated by reference numeral 3A in FIG. 7 and a mounting position of a wired appliance by a worker 62 indicated by reference numeral 3B. At the appliance mounting position, for example, a plurality of electrical appliances 63A, 6 are installed at positions as shown in the perspective view of the pallet after wiring in FIG.
3B, 63C, 63D, 63E, and 63F are installed and moved to the wiring position. At the wiring position, as shown in FIG. 10 and FIG.
The terminal 65 or 66 passes through the chamfer guide portion 64 of...
and the wall surface. The insertion operation will be described later.

The operation of the automatic wiring device configured as above will be explained. The worker 62 places the electrical appliances 63A on the pallet 3B (3A, 3C) at the appliance mounting position.
... and air cylinders 58, 59, 60, 6
1 as appropriate to create pallet 3A in Fig. 8.
Move to the wiring position where is located. and,
When the device is operated, the electric wire 6 pulled out from the storage container 5 by the guide rollers 18 and 19 is pulled out from the tension applying section 7.
Tension is applied at 8, and the curvature is removed by a strainer 8 before being sent out. At this time, Figure 13a
As shown in FIG. 13, the clamper 11A on the fixed side is fixed and the gripping portion is open, and the wire 6 that is sent out is projected from between the gripping portions, and as the belt 22 is driven by the motor 25, it is moved to the position shown in FIG. 13b. As shown, the gripper 11B on the movable side moves to the vicinity of the gripper 11A with its grip part open and picks up the electric wire 6.
grasp. The cutters 26 and 27 are retracted.
Then, when the motor 25 is rotated in the reverse direction, as shown in FIG.
As shown in , the gripper 11 moves along with the electric wire 6 and stops at a position of a predetermined dimension L. At this time, the fingers 56 and cutters 57 of both wiring hands 15 and 16 are open, so when only the fingers 55 are closed after the electric wire 6 has stopped, the electric wire 6 is pulled into the grips of both fingers 55 as shown in FIG. 13d. 11
It is gripped by A and 11B. So Katsuta 26,2
At step 7, the electric wire 6 is cut to a predetermined length L. As a result, the electric wire 6 on the gripper 11A side is in the state shown in FIG. 13a, so the operations shown in FIGS. 13a to 13d are repeated at predetermined timing.

After cutting the wire 6, the grippers 11A and 11B are released, and the arms 28 of the wiring hands 16 and 17 are moved by the motors 14 and 15, etc., and the wire 6, whose ends are gripped by the fingers 55, is placed on the pallet 3A.
Move it to the upper wiring position. When transporting the electric wire 6, it is desirable to keep the distance between the two wiring hands 16, 17 constant at all times in order to prevent the electric wire 6 from becoming overly tensioned or sagging.
Therefore, in this embodiment, for example, P ₁ and P ₂ are shown in FIG.
Connect the wire 6 according to the position of both wiring handles 16, 17.
When moving the wiring hand ₁₆ from P 1 to the wiring positions shown in P ₃ and P ₄ as shown in Figure 15a,
By moving the wiring handle 17 from P ₃ and from P ₂ to P ₅ at the same acceleration and speed, and then moving only the wiring handle 17 from P ₅ to P ₄ ,
Excessive tension and slack in the electric wire 6 are minimized. Figure 15b shows the wire 6 from P ₁ , P ₂ to P ₃ ,
When moving to P ₄ , in this case also P ₁ , P ₂
After moving from P ₅ to P ₄ , only one wiring hand 16 is moved from P ₅ to P ₃ .

Next, a description will be given of the wire end processing operation in which the wire 6 that has been transported to the wiring position is stripped of its covering, molded, and then inserted into the terminal portion of the device. When the cutter 56 is closed at the same time as the wire reaches the wiring position, the circular blade 57 at the tip of the cutter 56 applies strong pressure to the end of the electric wire 6, thereby cutting the coating in an annular shape. Figures 16a and 17a show this state. Therefore, when the piston rod 37 of the air cylinder 36 is moved backward and the cutter holder 39 is moved outward, the blade 5
At the same time as the wire 7 strips off the annularly cut sheath, the engagement between the pin 48 and the stopper 47 is released, and the guide claw 51 rapidly descends along the guide rod 45 by the tensile force of the tension spring 50. The protrusion from the finger 55 is bent into an L shape. Figures 5, 12 and 16b, 17
Figure b shows this situation. In this case, as shown in FIG. 5, the V-groove 51a at the tip of the guide claw 51 holds and guides the core wire after the coating has been peeled off. Further, when the guide claw 51 is lowered, it descends while slidingly contacting the stopper 54 due to the bias of the tension spring 53.
After the tip of the electric wire 6 is formed in this way, the finger holder 38, guide claw 51, etc. are moved by driving a motor (not shown), etc. in FIGS. 16c and 17c.
If it is lowered in one piece as shown in the figure, the 10th
As explained based on FIG.
inserted between the wall and the wall. In this insertion operation, as shown in FIGS. 17a, b, and c, a step is provided on the contact surface of the guide claw 51 with respect to the stopper 54 to form the plate cam 51b, so that the guide claw 51 is pulled during the descent. When the stopper 54 is pulled by the spring 53 and comes into contact with the lower part of the plate cam 51b, the V-groove 51 of the guide pawl 51 reliably guides the core wire portion, as shown in FIGS. 5 and 17b. Further, when the finger 55 finishes descending as shown in FIG. The fixture 63
A... At this time, the stopper 54 comes into contact with the high part of the plate cam 51b, so the tip of the guide claw 51 escapes from the electric wire 6 in the horizontal direction, and the guide claw 51 rises. The sheathing of the electric wire 6 will not be damaged even if the electric wire 6 is covered.

When the wire connection is completed in this manner, the finger 55 is opened to release the grip on the wire 6, and the finger holder 38, guide claw 51, etc. are raised integrally by driving the motor or the like. During this upward movement, the guide claw 51 is lowered by the spring force of the tension spring 50, but until the tip part leaves the wire 6, it escapes from the wire 6 by the action of the plate cam 51b, so it does not damage the sheathing. . When the finger holder 38 etc. have finished rising, the hook holder 39 is moved back slightly by the air cylinder 36, and then the air cylinder 40 is operated and the stopper 43 raises the guide pawl 51 together with the block 46, and the air in the air cylinder 40 is released. Once removed, the guide pawl 51 returns to its original state in which the pin 48 is supported by the stopper 47. The wiring cycle is then completed by moving the wiring hands 16, 17 to the position for receiving the next wire by the movement of the arm 28.

The operations from supplying, transporting, and connecting the electric wire 6 have been described above, and by repeating these operations, each electric appliance 58A to 58 as shown in FIG.
Wiring between F is automatically performed.

Although this embodiment shows an example in which the motor 33 and the threaded rod 34 are used to drive the finger holder 38, an air cylinder or the like may also be used, and the air cylinder 3 is used to drive the cutter holder 39.
6 has been shown, but a motor, a threaded rod, etc. may also be used. Furthermore, although the explanation of the structure of the opening/closing mechanism of the finger 55 is omitted in this embodiment, this mechanism may have any structure.

Although this embodiment shows an example in which the present invention is implemented as part of an automatic wiring device, it may also be implemented in an independent wiring hand, and the wire material to be terminal-treated is not limited to electric wires. As long as the wire rod has a coating, it can be widely applied to wire rods other than electric wires.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, in the wire end processing device for the wiring hand,
Wire gripping means supported at the tip of the arm so as to be movable up and down and having a finger at the lower end that can be opened and closed;
A wire sheath stripping means is provided at the tip of the arm, and includes a half-shaped blade that is supported movably in the axial direction of the wire and can be opened and closed, and the V-groove at the tip faces between the finger and the blade. The electric wire end forming guide means is biased in a downward direction by a spring member, is pivotally supported by the electric wire gripping means so as to be freely raised and lowered, and is freely rotatable, and the rotating operation is linked to the raising and lowering operation by a cam mechanism, After peeling off the coating by moving the open blade forward and backward while opening and closing the end of the wire held by the fingers, the wire end forming guide means is rapidly lowered to bend and shape the core wire, and the wire end forming guide means By simultaneously lowering the wire gripping means and the wire gripping means to guide the terminal to the terminal part of the device using a V groove, stripping, forming, and connecting the wire terminal can be performed without causing damage to the coating or poor connection. Since it can be done automatically and correctly without having to do anything, it saves labor and costs, and also improves the quality of the product. In particular, if this is incorporated into an automatic wiring device, the entire process from wire supply to connection can be automated, resulting in further labor savings and ease of incorporation into automated lines.

[Brief explanation of drawings]

1 to 17 show an embodiment of the wiring hand and wire terminal processing device according to the present invention, FIG. 1 is a front view of the tip of the wiring hand, and FIG. 2 is a perspective view of the guide claw and its lifting/lowering drive unit. 3 is a perspective view of the cutter, FIG. 4 is a perspective view of the lifting and lowering drive unit of the finger holder and the horizontal movement drive unit of the cutter holder, FIG. 5 is a perspective view of the wire forming unit, and FIG. 6 is a perspective view of the present invention. FIG. 7 is a schematic perspective view of the wire supply device and length measuring device, FIG. 8 is a schematic plan view of the instrument holding device, and FIG. 9 is a schematic perspective view of the automatic wiring device that was implemented. 10 and 11 are respectively sectional views of the electric appliance into which the core wire of the electric wire has been inserted, and FIG. 12 is a perspective view of the installed pallet, and FIG. side view,
Figure 13 is an explanatory diagram of the electric wire supply and length measurement operation,
Figures 4 and 15 are explanatory diagrams of the wire conveying operation, Figure 16 is an explanatory diagram of the wire forming and connecting operation, and Figure 17 is an explanatory diagram of the wire forming and connecting operation.
The figure is an explanatory diagram of the operation of the guide claw. 6... Electric wire, 16, 17... Wiring hand, 28
... Arm, 33 ... Motor, 34 ... Threaded rod,
36...Air cylinder, 38...Finger holder, 39...Cut holder, 40...Air cylinder, 46...Block, 47...Stopper, 50
...Tension spring, 51...Guide claw, 51a...V
Groove, 51b...plate cam, 53...tension spring, 5
5...Finger, 56...Cut, 57...Blade body, 63A to 63F...Instrument, 65, 66...Terminal.

Claims (1)

[Claims] 1. An arm supported with its tip facing above the wired appliance; an electric wire gripping means that is supported on the tip of the arm so as to be movable up and down and has a finger at its lower end that can be opened and closed; and the tip of the arm. an electric wire sheath stripping means having a half-shaped blade that is supported movably in the axial direction of the electric wire and opens and closes on the electric wire gripped by the fingers; and a wire gripping means biased in a downward direction by a spring member. The electric wire end forming guide means is pivotally supported to be able to move up and down freely and rotatably by a means, and the V groove for end guide formed in the lower end facing between the finger and the blade body, and a rotating movement in the up and down movement. An electric wire end processing device for a wiring hand, characterized in that it is provided with an electric wire end forming guide means equipped with an interlocking cam mechanism.