JPH0828386B2 - Wiring connection device - Google Patents

Description

TECHNICAL FIELD The present invention relates to wiring for electronic parts or various sensors,
The present invention relates to a wiring connection device used for connection and the like.

2. Description of the Related Art FIGS. 21 to 23 are views showing a commonly used wiring connection device. FIG. 21 is a diagram showing a resistance connection type wire connection device. In FIG. 21, 101 and 102 are positive and negative welding electrodes, respectively, and holders 103 and 104, respectively.
It is fixed to. Reference numeral 105 denotes a pressurizing force adjuster equipped with a spring (not shown) for adjusting the pressurizing force of the electrode during spot welding, and the knob 106 is rotated to set an appropriate pressurizing force. Reference numeral 107 denotes a mechanism (not shown) for moving the welding electrodes 101 and 102 up and down in the directions of arrows J and K via a wire 109 by depressing a foot pedal 108, and a micro switch (not shown) for determining the timing of energization. Is a built-in ring block and supports 11
0, It is fixed to a workbench (not shown) via a fixed block 111. 112 is a work set table on which a work to be connected (not shown) is set. The above blocks 101 to 102 are collectively referred to as a welding head C. Welding head C
Is a power supply control unit via a welding command signal line 118 to a transformer 115 via positive and negative lead wires 113 and 114 for energization.
It is connected to 116. In addition, the transformer 115 is connected to the signal line 119.
It is connected to the power supply control unit 116 via.

Next, the operation of the above conventional example will be described. Figure 22, Figure
As shown in FIG. 23, when a worker depresses the foot pedal 108, the welding electrodes 101 and 102 are moved in the J direction, and when the work 120 is contacted, the micro switch is turned on, and the welding command signal from the welding head C is turned on. It is sent to the control unit 116. By this signal, a current whose phase is controlled by the power supply control unit 116 and which is adjusted to have an appropriate magnitude and energization time is sent to the transformer 115, which is amplified and then energized to the welding electrodes 101 and 102. The arrow 122 shown in FIG. 23 indicates the direction of current flow. Then, the welding electrodes 101 and 102 and the work 12
Work by electric energy generated between 0 and 121
120 and 121 are instantly melted and connected. Also, work 12
0 often uses a wire cut into a certain length. The electric energy of welding generally given by resistance welding is expressed by the following equation.

Q = 0.24I ² Rt However, Q: calorific value (cal) I: current (A) R: specific resistance of the material to be welded, contact resistance of the joint (Ω) t: energizing time (sec) Therefore, the welding conditions are welding. The resistance depends on the material to be used, the electrode spacing, etc., and it depends on the welding current and welding time.
Of the above resistances, the contact resistance depends on the applied pressure 123, as shown in FIG. However, in general, the tooth welding conditions are determined not only by the above conditions but also by the material, shape, etc. of the electrode and are determined experimentally.

Further, other conventional examples are shown in FIGS. 24 and 25. this is,
It is called a wire bonder and uses heat energy generated by ultrasonic vibration. In FIG. 24, a welding head 131 having a bonding tool section 130 is mounted on an X-axis table 132 and a Y-axis table 133.
The work 134 is held by a work set jig 135 having a rotation mechanism, and the entire apparatus is installed on a base 136 having an operation panel 137. The connected work 134 set on the work set jig 135 enables wire bonding in various directions by the movement of the bonding tool portion 130 in the XY axis directions and the rotary movement of the work set jig 135. . FIG. 25 is an enlarged view of the bonding tool section 130 and shows the bonding process in the order of a to f.
The operation of this conventional example will be described. First, the wire 151 guided to the bonding tool 50 is clamped by the wire clamp 152 (Fig. 25a). Next work 154
When the bonding tool 150 comes into contact with (Fig. 25b),
Ultrasonic vibration is applied to the bonding rule 150, frictional heat is generated between the work 154 and the wire 151, and the wire 151
Is connected to the work 154. The clamp 152 is now released, the bonding tool 150 moves a certain distance along the arrow 155, and the clamp 152 clamps the wire 151 again, as shown in FIG. 25c. Next, the bonding tool 150 moves to the next work 157 while drawing the movement trajectory 156, and ultrasonically connects the wire 151 to the work 157 (25th operation).
Figure d). Next, with the wire clamp 152 released, the bonding rule 150 moves like a motion trajectory 158, and the wire cutter 153 operates in the direction of arrow 159 to move the wire 151.
Is cut (Fig. 25e). Finally, with the wire clamp 152 clamping the wire 151, the bonding rule 1
50 moves to the position shown in Figure 25a (Figure 25f). Therefore, according to this wire bonder type wire connection device,
Wiring connection work can be performed while continuously supplying wires.

However, the above-mentioned conventional wiring connection device has the following problems.

(1) In the resistance connection type wire connection device, since each wire cut into a predetermined length must be supplied one by one,
Very poor workability.

(2) In the wire bonder type wire connection device, since the connection is made by ultrasonic vibration, the material of the wire is limited to aluminum or gold, and the connection strength is not so high.

It is an object of the present invention to provide an excellent wiring connecting device which solves the above-mentioned conventional problems and which can be connected while continuously supplying wires made of any metal material and which has high connection strength.

Means for Solving the Problems In order to achieve the above object, the present invention has an X-axis table movable on a base in the X-axis direction on a horizontal plane, and a Y axis orthogonal to the X-axis direction on the same horizontal plane. Y that can move in the axial direction
An axis table is provided, a body to be connected is placed on the Y-axis table, and a main body that is vertically slidable is provided on the X-axis table. Two electrodes that have a semi-cylindrical shape and are insulated from each other, a wire cutter that is a concentric circle of these electrodes on the horizontal plane, and an outer cylinder of these electrodes, and a vertical electrode that is independent of each of the above two electrodes. Pressurizing means for applying downward pressure, rotating means for vertically lowering the wire cutter to rotate around the center of the concentric circle, and lower ends of the two electrodes that pass on the center line of the concentric circle. And a lead-out means for leading out the wire to the section.

Further, according to the present invention, an X-axis table movable in the X-axis direction on the horizontal plane and a Y-axis table movable in the Y-axis direction orthogonal to the X-axis direction on the same horizontal plane are provided on the base. A body to be connected is placed on the axis table, and a main body which is vertically slidable is provided on the X-axis table. The main body has concentric circles on a horizontal plane about a vertical line. And two electrodes that are both cylindrically arranged and insulated from each other, and these electrodes form concentric circles on a horizontal plane with the vertical line as the center.
A cylindrical wire cutter serving as an outer cylinder of one electrode, a pressurizing means for independently applying a vertical downward pressure to the two electrodes, a descending means for vertically descending the wire cutter, and a vertical wire passing through the vertical line, And a lead-out means for leading the wire to the lower end of the electrode.

Further, according to the present invention, an X-axis table movable in the X-axis direction on the horizontal plane and a Y-axis table movable in the Y-axis direction orthogonal to the X-axis direction on the same horizontal plane are provided on the base. A body to be connected is placed on the axis table, and a main body which is vertically slidable is provided on the X-axis table. The main body has concentric circles on a horizontal plane about a vertical line. And two electrodes which are both cylindrically arranged so as to be insulated from each other, and these electrodes are concentric circles on a horizontal plane centered on the vertical line and are positioned between the two electrodes. Wire cutter and above 2
A pressing means for independently applying vertical downward pressure to each of the two electrodes; a lowering means for vertically lowering the wire cutter; and a leading means for leading the wire to the lower end of the electrode, passing through the vertical line. It is a thing.

Further, according to the present invention, an X-axis table movable in the X-axis direction on the horizontal plane and a Y-axis table movable in the Y-axis direction orthogonal to the X-axis direction on the same horizontal plane are provided on the base. A body to be connected is placed on the axis table, and a main body which is vertically slidable is provided on the X-axis table. The main body has concentric circles on a horizontal plane about a vertical line. And two electrodes which are both cylindrically arranged so as to be insulated from each other, and these electrodes are concentric circles on a horizontal plane centered on the vertical line and are positioned between the two electrodes. Wire cutter and above 2
A pressing means for independently applying vertical downward pressure to each of the two electrodes; a lowering means for vertically lowering the wire cutter; and a leading means for leading the wire to the lower end of the electrode, passing through the vertical line. , Of the above two electrodes,
A convex portion is provided vertically downward in the lower end portion of the electrode on the outer peripheral side.

Effect According to the present invention, therefore, the wire is moved by the lead-out means while moving the connected body in the Y-axis direction on the horizontal plane and moving the main body in the X-axis direction orthogonal to the Y-axis direction on the horizontal plane. It has an action of leading out and connecting the wire and the connected body by the electrode.

Embodiment FIG. 1 to FIG. 5 show a first embodiment of the present invention. 1A and 1B are a front view and a side view, respectively, of the wiring connection device according to the first embodiment, and FIGS. 2A, 2B, and 2C are a front cross-sectional view, a side cross-sectional view, and a bottom view of a spot tool portion A described later, respectively. It is a figure. 1 and 2 in FIG.
Both a and 1b have a cylindrical shape in which the lower part is vertically cut in half, and the lower ends are electrodes that are located on the same horizontal plane and are insulated from each other, and screw 8a on the electrode holders 7a and 7b, respectively.
It is fixed by 8b. Here, either of the electrodes 1a and 1b may be a positive electrode or a negative electrode, and a current is supplied from a power source (not shown). Further, the electrode holders 7a and 7b are independently suspended so that a downward pressure force adjusted by a pressure force adjusting unit described later is independently applied to the electrodes 1a and 1b. 2, the center of the circle is the center of point symmetry between the electrodes 1a and 1b, and the horizontal cross-sectional shape is a ring,
A wire cutter is provided on the outer periphery of the electrodes 1a and 1b so as to be insulated from these electrodes, and is held by a cutter holder 6. The cutter holder 6 is attached to the cutter rotating arm 13 so as to be rotatable and slidable with respect to the rotary unit mount 14 via the shaft 41. The cutter rotating arm 13 is connected to the cylinder 15 via a link 16 and rotates the cutter 2 in the direction of arrow 21 in FIG. 2c. Further, the cutter holder 6 is a sub block via the shaft 41.
It is fixed to the sub-slider 17 guided by 18, and is attached to the wire cutter 2 by a cylinder 19 attached here.
Is driven in the direction of arrow 20 in FIG. 3 is wire 9
It is a wire guide for guiding. Reference numeral 4 is a guide weight for pressing the wire guide 3 from above vertically, and a weight block 5 is attached to the upper end of the guide weight. The electrode 1a, 1b, the wire cutter 2, the wire guide 3, the guide weight 4, the weight block 5, the cutter holder 6, and the electrode holders 7a, 7b constitute a spot tool section A. Reference numeral 10 is a wire lock for preventing the wire 9 from rotating after being cut by the wire cutter 2. Each of the wire guide 3, the guide weight 4, and the wire lock 10 is made of an insulator. Reference numeral 11 is a pressing force adjusting unit for adjusting the pressing force of the electrodes 1a, 1b vertically downward, and the sub base 12, the electrode holder 7a,
It is fixed to the electrodes 1a and 1b via 7b while being insulated from these electrodes. A sub base 12 is fixed to a main base 25 which is vertically driven by a cylinder 26 with guide rods 24a and 24b as guides. Reference numeral 18 denotes a sub block, which is provided with a wire clamp 22 for fixing and releasing the wire 9 and a clamp opening / closing cylinder 23 as a driving source thereof. 27a and 27b are linear motion bearings provided on the main base 25. Reference numeral 28 denotes an X-axis slide table that fixes the cylinder 26 and the guide rods 24a and 24b, which is attached to the X-axis base 29 via the X-axis linear motion bearing 42 and is driven by the motor 30 in the X-axis direction (direction of arrow 31 in the figure). ) Is driven. Reference numeral 32 is a Y-axis slide table on which the workpiece 40 to be connected is placed, and a Y-axis linear motion bearing
It is fixed to the Y-axis base 33 via 43, and is driven by a motor (not shown) in the Y-axis direction (the direction perpendicular to the arrow 31 in the drawing on the horizontal plane). Reference numeral 34 is a base for fixing the X-axis base 29 and the Y-axis base 33. The wire 9 is led out from the bobbin 35 through the guide pulley 36, the wire guide 3, and the wire lock 10 to the center of the lower ends of the electrodes 1a and 1b. Bobbins
35 is driven by a bobbin drive motor 39 attached to a bobbin holder 44 fixed to the base 34, and is guided by a guide pulley.
36 is a bracket fixed to the X-axis slide table 28
It is rotatably supported by 37. Further, when the X-axis slide table 28 moves, the wire 9 is pulled out by the clamping operation of the wire clamp 22, and the tension is detected by the micro switch 38 provided on the X-axis slide table 28 via the bracket 45, and the tension is kept constant. When the tension is reached, the bobbin drive motor 39 operates to rotate the bobbin 35 and the wire 9 is delivered. Therefore, the wire 9 is set to maintain a constant tension between the bobbin 35 and the wire clamp 22.

Next, the operation of the first embodiment will be described with reference to FIGS. 3 and 4. FIG. 3 is a diagram showing the operating principle of the spot tool section A. As shown in FIG. 3a, the wire clamp 22
From the state in which the wire 9 is clamped by the wire, the spot tool portion A descends with respect to the workpiece 40 as the object to be connected as shown in FIG. 3b, and at this time, the two electrodes 1a and 1b are energized to 9 is welded to the work 40 at a welding point 46. Next, as shown in FIG.
Rises with the wire clamp 22 released, Fig. 3d
As shown in, the spot tool portion A contacts the next work 47 while the X-axis slide table 28 moves in the X-axis direction and the Y-axis slide table 32 moves in the Y-axis direction. Here, the electrodes 1a and 1b are energized, and the wire 9 and the workpiece are welded at the welding point 48.
47 is welded. Next, by moving the X-axis slide table 28 and the Y-axis slide table 32, the relative position between the spot tool portion A and the work 47 changes as shown in FIG. 3e, and the wire 9 is pulled out. From this state, FIG.
As shown in, the wire cutter 2 descends, contacts the wire 9, and then rotates to cut the wire 9. When the cutting of the wire 9 is completed, the wire cutter 2 returns to the initial position as shown in FIG. 3g, and the spot tool part A moves vertically upward with the wire clamp 22 closed, and the wire connection for one cycle is completed. The work is finished. Further, FIG. 4 shows a case where the wiring connection work at multiple points is continuously performed without cutting the wire 9 for each cycle. In FIG. 4, 40, 47, 50,
Reference numerals 51, 52, and 53 indicate workpieces, 46, 48, 54, 55, 56, and 57 indicate welding points, and arrows indicate relative movement loci of the spot tool portion A with respect to the workpiece.

As described above, according to the first embodiment, the wire clamp 22 is opened and closed when the spot tool portion A moves from one work to another, and the connection work is performed while supplying the wire 9 from the bobbin 35. Efficient wiring connection work can be performed. In addition, according to the first embodiment, since the resistance welding method is used as the connection method, it is possible to use wires of various materials and, moreover, there is an effect that the connection strength is high. Further, according to the first embodiment, the fifth
As shown in the figure, except for the area where the wire 9 overlaps the groove 49 between the electrode 1a and the electrode 1b, the wire connection work can be performed by arranging the wire 9 at an angle of 2α. It has the effect that it can be done.

6 to 11 show a second embodiment of the present invention. 6A and 6B are respectively a front view and a side view of the wiring connection device in the second embodiment, and FIGS. 7A and 7B are a front cross-sectional view and a bottom view of a spot tool portion B described later, respectively. In FIGS. 6 and 7, the same parts as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted. 81a and 81b are cylindrical electrodes at the lower part, their lower ends are located on the same horizontal plane and are concentric with each other on the horizontal plane, and they are electrodes insulated from each other, and are screwed to the electrode holders 82a and 82b, respectively. It is fixed by 83a and 83b. Here, either of the electrodes 81a and 81b may be a positive electrode or a negative electrode, and a current is supplied from a power source (not shown). Further, the electrode holders 82a, 82b are independently suspended so that the vertically downward pressure force adjusted by the pressure force adjustment unit 11 is independently applied to the electrodes 81a, 81b. 84 has a ring-shaped horizontal cross section, and electrodes 81a, 8
1b is a concentric circle and is located on the outer periphery of the electrode 81b,
These electrodes are wire cutters that are provided so as to be insulated from each other, and are held by a cutter holder 85. The electrode 81a, 81b, the electrode holders 82a, 82b, the wire cutter 84, and the cutter holder 85 constitute a spot tool section B.
The cutter holder 85 is L-shaped, slidable with the guide block 87 via guide shafts 86a and 86b provided at the upper end, and further connected to the cylinder 19 via the sub-slider 17. Therefore, the wire cutter 84 is driven in the direction of the arrow 20 in FIG. 11 is electrode 81a, 81b
It is a force adjustment unit for adjusting the force of the vertical downward of the electrode, and the electrode is connected via a built-in spring (not shown).
The electrodes are fixed to 81a and 81b while being insulated from these electrodes. 88 is a wire clamp that fixes and releases the wire 9.
89 is a sub-block provided with 89 and a clamp opening / closing cylinder 60 which is a drive source thereof, and is vertically driven by the cylinder 26 using the guide hexagons 24a and 24b as guides. 27a, 27b
Is a linear motion bearing provided in the sub block 88. Further, the wire 9 passes through the hole at the center of the electrode 81a from the bobbin 35 via the guide pulley 36 and the wire clamp 89, and is led out to the lower end.

Next, the operation of the second embodiment will be described. FIG. 8 is a diagram showing the operating principle of the spot tool section B. Basically, the wiring connection operation of the wire 9 is the same as that of the first embodiment, and the wiring connection work of one cycle is performed in the order of FIGS. 8a to 8g. However, the cutting of the wire 9 is performed only by moving the wire cutter 84 vertically downward by the operation of the cylinder 19. FIG. 9 is a diagram showing a case where a multi-point wiring connection work is continuously performed without cutting the wire 9 for each cycle, and the arrow in FIG. 9 indicates the relative position of the spot tool section B to the work. It shows a movement trajectory. Further, FIG. 10 is a view showing the principle of the wire 9 being welded to the work 40, and FIG. 11 is a bottom view of the spot seal portion B after the wire 9 is cut. As shown in FIG. 10, the spot tool B is lowered, and the wire 9 is pressed against the work 40 by the pressing force adjusted by the pressing force adjusting unit 11. At this time, a current flows as indicated by an arrow N in FIG. 10 and the welding point 46 generates heat, whereby the wire 9 and the work 40 are welded and connected. Also, as shown in FIG.
Since the electrodes 81a and 81b have a ring-shaped horizontal cross-section and are concentric with each other, the wire 9 always exists between the electrodes 81a and 81b and the workpiece regardless of the direction in which the wire 9 is drawn 360 °. Therefore, welding connection can always be performed.

As described above, according to the second embodiment, in addition to the same effect as the first embodiment, the horizontal cross-sectional shape of the electrodes 81a and 81b is formed in a ring shape and is provided so as to be concentric with each other. When carrying out, the wire 9 can be laid around in any direction of 360 °, and there is an effect that a work with a higher degree of freedom can be performed as compared with the first embodiment.

12 to 16 show a third embodiment of the present invention. 12a and 12b are a front view and a side view, respectively, of the wiring connection device in the third embodiment, and FIGS. 13a and 13b are a front sectional view and a bottom view, respectively, of a spot tool portion C described later. 12 and 13, the first embodiment, the second embodiment
The same parts as those in the above embodiment are designated by the same reference numerals and the description thereof will be omitted. Both 61a and 61b have a lower cylindrical shape, whose lower ends are located on the same horizontal plane and are concentric with each other on the horizontal plane, and are electrodes insulated from each other, and are screwed to the electrode holders 62a and 62b, respectively. 63a, 6
It is fixed by 3b. Here, either of the electrodes 61a and 61b may have a positive electrode or a negative electrode, and a current is supplied from a power source (not shown). Also, the electrode holders 62a, 6
2b is independently suspended so that the vertically downward pressing force adjusted by the pressing force adjusting unit 11 is independently applied to each of the electrodes 61a and 61b. 64 has a ring-shaped horizontal cross section, and is concentric with the electrodes 61a and 61b.
And a electrode 61b, which are wire cutters provided so that these electrodes remain insulated from each other, and are held by a cutter holder 65. The electrode 61a, 61, the electrode holders 62a, 62b, the wire cutter 64, and the cutter holder 65 constitute a spot tool section C.
The cutter holder 65 is L-shaped, slidable with the guide block 87 via guide shafts 86a and 86b provided at the upper end, and further connected to the cylinder 19 via the sub-slider 17. Therefore, the wire cutter 64
13 Driven in the direction of arrow 20 in FIG. Further, the wire 9 follows the same path as in the second embodiment, passes through the center of the electrode 61a, and is led out to the lower end.

Next, the operation of the third embodiment will be described. FIG. 14 is a diagram showing the operating principle of the spot tool section C. Basically, the wiring connection operation itself of the wire 9 is similar to that of the second embodiment, and the wiring connection work of one cycle is performed in the order of FIGS. 14a to 14g. Figure 15 shows wire 9 per cycle
FIG. 16 is a diagram showing a case where a multi-point wiring connection work is continuously performed without cutting off, and the arrow in FIG. 15 shows a relative movement locus of the spot tool unit C with respect to the work. Here, FIG. 16 is a view showing the principle that the wire 9 is welded to the work 40 in the third embodiment. 16th
As shown in the figure, the spot tool portion C descends, and the wire 9 is pressed against the work 40 by the pressing force adjusted by the pressing force adjusting unit 11. At this time, the arrow L in FIG.
The electric current flows as shown in FIG. 6 and the welding point 46 generates heat, whereby the wire 9 and the work 40 are welded and connected. Here, since the wire cutter 64 is located between the electrode 61a and the electrode 61b,
After the wire 9 is cut, the tip of the wire 9 is located between the electrode 61a and the work 40, and the two electrodes 61a, 61
Since b does not contact the wire 9 at the same time, there is no current that does not pass through the work 40 as indicated by the arrow M shown in FIG. 10, and all the current passes through the path of electrode 61a → wire 9 → work 40 → electrode 61. Pass through.

As described above, according to the third embodiment, the electrodes 61a and 61b arranged on the concentric circle and the wire cutter 64 provided on the concentric circle and between the two electrodes are provided. If there is any current, electrode 61a → wire 9 →
Work 40 → Electrode 61b passes through the wire 9 and work 4
The first embodiment as used to weld 0 and
In addition to the effect of the second embodiment, there is an effect that the connection strength between the wire and the work is remarkably strong even when the same level of current is applied to the electrodes.

17 to 20 show a fourth embodiment of the present invention. 17a and 17b are respectively a front sectional view and a bottom view of a spot tool portion D described later. First in Figure 17
The same parts as those in the first to third embodiments are designated by the same reference numerals and the description thereof will be omitted. Both 71a and 71b have a cylindrical shape in the lower part, are concentric circles on the horizontal plane, and are electrodes insulated from each other, and are fixed to the electrode holders 62a and 62b by screws 63a and 63b, respectively. Here, either of the electrodes 71a and 71b may be a positive electrode or a negative electrode, and a current is supplied from a power source (not shown). Further, the electrode holders 62a and 62b are independently suspended so that the vertically downward pressure force adjusted by the pressure force adjustment unit 11 is independently applied to the electrodes 71a and 71b, respectively. Further in a concentric relationship with the electrode 71a, a convex portion 72 extends vertically downward on a part of the circumference of the lower end portion of the electrode 71b located on the outer periphery of the electrode 71a, and the lower end of the convex portion 72 The lower end of the electrode 71a is located on the same horizontal plane.
Similar to the third embodiment, the wire bracket 64 is concentric with the electrodes 71a and 71b and is located between the electrodes 71a and 71b so that these electrodes are insulated from each other. It is provided. The electrodes 71a and 71b, the electrode holder 62
The spot seal portion D is composed of a, 62b, the wire cutter 64, and the cutter holder 65. Other parts are the same as those in the third embodiment.

Next, the operation of the fourth embodiment will be described. FIG. 18 is a diagram showing the operating principle of the spot tool section D. The operation of wiring connection of the wire 9 is basically the same as that of the third embodiment, and the wiring connection work of one cycle is performed in the order of FIGS. 18a to 18g. Figure 19 shows wire 9 per cycle
FIG. 20 is a view showing a case where a multi-point wiring connection work is continuously performed without cutting the wire, and an arrow in FIG. 19 shows a relative movement locus of the spot tool portion D with respect to the work. . Here, FIG. 20 shows the wire 9 in FIG. 18d.
FIG. 7 is a diagram showing a principle of welding connection to a work 47. A convex portion 72 is provided on the lower end of the electrode 71b.
Reliably contacts the work 47, and the electrode 71b does not contact the wire 9.

As described above, according to the fourth embodiment, even when the wire is continuously welded to the work, the convex portion 72 provided on a part of the lower end of the electrode 71b on the circumference is surely attached to the work 47. By making contact, the two electrodes do not contact the wire at the same time, and all the current supplied to the electrode passes through the path of electrode 71a → wire 9 → workpiece 47 → convex portion 72 → electrode 71b, and the welding point Since the wire 9 and the work 47 are welded and connected at 48, in addition to the effects of the first, second, and third embodiments, the wire 9 is continuously connected to the work without cutting. Even if it does, it has an effect that the connection strength is remarkably high.

EFFECTS OF THE INVENTION As is apparent from the above-described embodiment, the present invention performs connection work by moving wires from one work to another while supplying a wire when performing a connection work, so that an extremely efficient wiring connection work can be performed. Since it can be performed, and the resistance welding method is used as the connection method, it is possible to use wires of various materials, and besides, the connection strength is high, except for the range where the wire overlaps the groove between the electrodes. Since the wiring connection work can be performed by arranging the wires, it is possible to perform the work with extremely high degree of freedom.

Furthermore, according to the present invention, since the horizontal cross-sectional shapes of the two electrodes are both ring-shaped and are provided so as to be concentric with each other, the wire can be laid out in any direction of 360 ° when connecting the wires. Further, there is an effect that the work having a higher degree of freedom can be performed.

Furthermore, according to the present invention, since the wire cutter is provided so as to be located on the two electrodes arranged on the concentric circle and on the concentric circle and between the two electrodes, all the electric current is Since it is used to weld the wire and the work piece through the path of the first electrode → the wire → the work piece → the second electrode, the wire and the work piece are connected to each other even when the same level current is applied to the electrode. It has the effect that the connection strength of is extremely strong.

Further, according to the present invention, even when the wire is continuously welded to the work, the convex portion is provided on a part of the circumference of the lower end of the outer electrode of the two electrodes arranged concentrically. This ensures that this protrusion will contact the work piece and the two electrodes will not contact the wire at the same time, so all the current supplied to the electrodes will be used for the welding connection between the wire and the work piece. Even if the workpieces are continuously connected to each other without cutting, the connection strength is remarkably high.

[Brief description of drawings]

1a and 1b are a front view and a side view of a wiring connection device according to a first embodiment of the present invention, and FIGS. 2a, 2b and 2c.
Are respectively a front sectional view, a side sectional view, a bottom view, and FIGS. 3A to 3G of the spot tool portion A in the first embodiment.
4 is a principle view showing the operation of the spot tool portion A in the embodiment of FIG. 4, FIG. 4 is a principle view showing a state in which the multi-point wiring connection work in the first embodiment is continuously performed, and FIG. 5 is the first embodiment. 6A and 6B are respectively a front view and a side view of a wiring connection device according to the second embodiment, and a bottom view of a spot tool portion A showing a possible wire routing range in FIG.
FIGS. A and b are front sectional views and bottom views of the spot tool unit B in the second embodiment, FIGS. 8A to 8G are operational principle diagrams of the spot tool unit B in the second embodiment, and FIG. FIG. 10 is a principle view showing a state in which multipoint wiring connection work is continuously performed in the second embodiment, and FIG. 10 is a principle view showing a principle in which a wire is welded and connected to a work in the second embodiment. FIG. 11 is a bottom view of the spot tool portion B showing the possible wire routing range in the second embodiment, and FIGS. 12a and 12b are a front view and a side view of the wiring connection device in the third embodiment, respectively. 13A and 13B are a front sectional view and a bottom view of the spot tool portion C in the third embodiment, and FIGS. 14A to 14G are operation principle diagrams of the spot tool portion C in the third embodiment, and FIG. The figure shows the continuous wiring connection work at multiple points in the first embodiment. Fig. 16 is a principle diagram showing a state of performing a welding process, Fig. 16 is a principle diagram showing a principle that a wire is welded and connected to a work in the third embodiment, and Figs. 17a and 17b are spot tools in the fourth embodiment, respectively. A front sectional view and a bottom view of the part D, FIGS. 18A to 18G are operation principle diagrams of the spot tool part D in the fourth embodiment, and FIG. 19 is a continuation of multi-point wiring connection work in the fourth embodiment. Fig. 20 shows the principle of the wire connection to the workpiece by welding in Fig. 18d. Fig. 21 shows the structure of the conventional resistance connection type wire connection device. 22 is a block diagram showing the operation of the conventional example, FIG. 23 is a principle diagram showing the connection principle of the conventional example, and FIG. 24 is a perspective view showing a conventional wire bonder type wire connection device. FIG. 25 and FIG. 25 are principle diagrams of the wiring connection operation of the conventional example. 1a, 1b, 61a, 61b, 71a, 71b, 81a, 81b ... Electrodes, 2,
64, 84 …… Wire cutter, 3 …… Wire guide, 4 ……
Guide weight, 5 ... Weight block, 6, 65, 85
...... Cutter holder, 7a, 7b ...... Electrode holder, 8a, 8b, 63
a, 63b, 83a, 83b …… Screw, 9 …… Wire, 10 …… Wire lock, 11 …… Pressure force adjusting unit, 12 …… Sub base, 13 …… Cutter rotating arm, 14 …… Rotating unit mount , 15 …… Cylinder, 16 …… Link, 17 …… Sub-slider, 18,88 …… Sub-block, 19 …… Cylinder, 22,89
...... Wire clamp, 23,60 ...... Clamp opening / closing cylinder, 24a, 24b ...... Guide rod, 25 ...... Main base,
26 …… Cylinder, 27a, 27b …… Linear bearings, 28…
… X-axis slide table, 29 …… X-axis base, 30 …… motor, 32 …… Y-axis slide table, 33 …… Y-axis base, 34 …… base, 35 …… bobbin, 36 …… guide pulley,
37 …… Bracket, 38 …… Micro switch, 39 …… Bobbin drive motor, 40,47,50,51,52,53 …… Workpiece,
41 …… Shaft, 42 …… X axis linear motion bearing, 43 …… Y
Axial linear motion bearing, 44 …… Bobbin holder, 45 …… Bracket, 46, 48, 54, 55, 56, 57 …… Welding point, 72 …… Convex section, 86a, 86b …… Guide shaft, 87 …… Guide block .

Claims (4)

[Claims] 1. An X-axis table movable in the X-axis direction on a horizontal plane and a Y-axis table movable in the Y-axis direction orthogonal to the X-axis direction on the same horizontal plane are provided on the base. A body to be connected is placed on the shaft table, and a main body that is vertically slidable is provided on the X-axis table. The main body has a cylindrical shape that is vertically cut in half. , Two electrodes that are insulated from each other, a wire cutter that is concentric with these electrodes on a horizontal plane, and that serves as the outer cylinder of these electrodes, and a pressure that vertically downwardly applies to the two electrodes independently. A pressing means, a rotating means for vertically lowering the wire cutter to rotate about the center of the concentric circle, and a wire for leading the wire to the lower ends of the two electrodes through the center line of the concentric circle. And a wiring connecting device. 2. An X-axis table movable in the X-axis direction on a horizontal plane and a Y-axis table movable in the Y-axis direction orthogonal to the X-axis direction on the same horizontal plane are provided on the base. A body to be connected is placed on the axis table, and a main body which is vertically slidable is provided on the X-axis table. The main body has concentric circles on a horizontal plane about a vertical line. And two electrodes that are both cylindrically shaped and insulated from each other, and these electrodes form a concentric circle on a horizontal plane centered on the vertical line and serve as an outer cylinder of the two electrodes. -Shaped wire cutter, pressurizing means for independently applying vertical downward pressure to the two electrodes, lowering means for vertically lowering the wire cutter, and wire passing through the vertical line to the lower end of the electrode. Derivation means to derive Wiring connection device provided. 3. An X-axis table movable in the X-axis direction on a horizontal plane and a Y-axis table movable in the Y-axis direction orthogonal to the X-axis direction on the same horizontal plane are provided on the base. A body to be connected is placed on the axis table, and a main body which is vertically slidable is provided on the X-axis table. The main body has concentric circles on a horizontal plane about a vertical line. And two electrodes which are both cylindrically arranged so as to be insulated from each other, and these electrodes are concentric circles on a horizontal plane centered on the vertical line and are positioned between the two electrodes. Pressurizing means for independently applying vertical downward pressure to the wire cutter and the two electrodes, and lowering means for vertically lowering the wire cutter,
A wire connecting device comprising: a lead-out means for leading the wire to the lower end of the electrode, passing through the vertical line. 4. The wiring connecting device according to claim 3, wherein among the electrodes insulated from each other, a convex portion is provided at a lower end portion of the electrode on the outer peripheral side so as to face vertically downward.