JPH0437569B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apparatus for manufacturing tab terminals constituting electrodes of capacitors.

[Prior Art] A tab terminal constituting an electrode of a capacitor has a tab portion and a lead portion, and is formed by wrapping an aluminum foil around the tab portion. Then, as a lead wire, a cut-purple ply wire (hereinafter referred to as CP wire), which is a copper-coated iron wire and solder-plated wire, is used, and an aluminum wire is cut to a specified length to make a CP wire.
A tab terminal structure consisting of a tab forming part and a lead part is formed by welding the CP wire against the tip of the wire and cutting it to a predetermined length. It is manufactured by pressing and deforming an aluminum wire portion so that it becomes flat with a press means, and trimming it into a predetermined shape to form a tab portion.

As mentioned above, in order to manufacture tab terminals,
Welding equipment for welding aluminum wire and CP wire;
A press device is required to press and trim the tab terminal structure formed by cutting the CP wire to a predetermined length after being welded in this way.However, in the conventional technology, this welding device and A press device is provided separately, and a linear feeder is interposed between them.
A structure is used in which the tab terminal structure formed by the welding device is conveyed to the press device by feeding the welded portion between the tab forming portion and the lead portion while being clamped by the linear feeder. ing.

[Problems to be Solved by the Invention] However, when configured as in the prior art described above, the device configuration becomes larger due to the linear feeder interposed between the welding device and the press device, and the linear feeder is interposed between the welding device and the press device. Not only is it not possible to speed up the feeding of the tab terminal structure by the feeder, but the shape of the welded part between the CP wire and the aluminum wire is not stable, and for this reason, it is not possible to speed up the feeding of the tab terminal structure by the feeder. If the material is conveyed while being clamped, the conveyance becomes extremely unstable, and smooth feeding is obstructed, resulting in clogging, which results in poor manufacturing efficiency and is not suitable for mass production. There are drawbacks.

The present invention has been made in view of the above points, and its purpose is to provide a tab terminal manufacturing apparatus that can manufacture tab terminals at high speed with extremely high efficiency using a small and compact configuration. There is a particular thing.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides an aluminum wire feeding mechanism, a CP wire feeding mechanism,
An aluminum wire cutting mechanism that cuts aluminum wire to a predetermined length, a welding mechanism that welds the aluminum wire cut to a predetermined length to a CP wire, and a CP wire cutting mechanism that cuts the welded CP wire to a predetermined length. A press having a welding part having a mechanism, a conveyance chuck means for chucking the tab terminal structure formed in this welding part, and a press means for pressing the aluminum wire part of the tab terminal structure so that it becomes flat. and a transfer section for transferring the tab terminal structure formed by the welding section to a press section,
This transfer section has a rotation axis arranged horizontally,
A transfer chuck means connected to the rotation shaft to check a portion of the aluminum wire, and a drive means for intermittently rotating the rotation shaft in one direction by 180 degrees around the axis, and the aluminum wire After welding and before cutting the CP wire, the aluminum wire is chucked by the transfer chuck means, and then the tab terminal structure is vertically rotated by rotating the pivot shaft by 180°. It is characterized by having a structure in which it is reversed in the direction and transferred to the conveying chuck means of the press section.

[Function] The tab terminal structure formed by butt welding the aluminum wire and the CP wire at the welding part is reversed 180° by the transfer chuck member, and the tab terminal structure is indexed. It becomes possible to transfer the material to the transport chuck member on the table at high speed. By rotating this index table while indexing at predetermined angles, the tab terminal structures can be sequentially carried into the press section and pressed and trimmed continuously at extremely high speed. It becomes like this.

Furthermore, since the tab terminal assembly can be fed onto the index table using the above-mentioned transfer chuck member, this transfer mechanism can be significantly simplified, and the entire device can be made smaller. You will be able to do this.

[Example] Hereinafter, an example of the present invention will be described in detail based on the drawings.

First, FIG. 1 shows the entire tab terminal manufacturing apparatus. In the figure, 1 indicates an aluminum wire forming the tab part, 2 indicates a CP wire forming a lead part, and these aluminum wire 1 and the CP wire 2
is fed from the supply section S to the welding section W. The aluminum wire 1 and the CP wire 2 fed into the welding part W in this way are first cut into a predetermined length in the welding part W, and then cut into a predetermined length at the tip of the CP wire 2. By butting and welding them, the connection and fixation between them is performed, and as shown in FIG. A terminal arrangement 3 is adapted to be formed.

Then, the tab terminal structure 3 is conveyed to the press section P, and in the press section P, the tab terminal structure 3 is transferred to the tab forming section 3a.
is pressed and deformed into a flattened portion, and this flattened portion is trimmed into a predetermined shape.

The above-mentioned supply section S is provided with reels 4 and 5 around which the long aluminum wire 1 and CP wire 2 are wound, respectively.
Guide roller groups 6 and 7 are provided for correcting the aluminum wire 1 and CP wire 2 sent out from the wire so that they are fed in a straight line.

Next, as shown in FIG. 3, the welding part W is provided with ball clamps 8 and 9 with back stops for clamping and pulling out the aluminum wire 1 and the CP wire 2. Reference numeral 9 denotes a slider 10, which constitutes an aluminum wire feeding mechanism and a CP wire feeding mechanism, respectively.
11 allows it to reciprocate along guide rods 12 and 13. As shown in FIG. 1, each slider 10, 11 is driven by a lever 14, 15 driven by a cam mechanism (not shown).
When 0, 11 moves forward, each ball clamp 8, 9 connects aluminum wire 1 and CP wire 2, respectively.
Pull it out while clamping it, and then pull out slider 1 again.
When 0 and 11 move backward, the clamps by the ball clamps 8 and 9 are released.

The aluminum wire 1 drawn out as described above is inserted into the aluminum wire die 16. An aluminum wire cutter 17 serving as an aluminum wire cutting mechanism is attached to the side of the tip of the aluminum wire die 16 so as to be able to reciprocate along the tip surface of the aluminum wire die 16. The aluminum wire 1 can be cut by moving the cutter 17 forward with the aluminum wire 1 protruding a predetermined amount from the cutter. Then, when cutting this aluminum wire 1,
A welding chuck member 18 for chucking the aluminum wire 1 and feeding the cut aluminum wire 1 to a welding position facing the tip of the CP wire 2 is provided so as to be movable back and forth on an extension of the die 16.

On the other hand, the CP pulled out from the ball clamp 9
The wire 2 is made to pass through a CP wire nozzle 19, and a spring plate 19b is provided on the pedestal portion 19a of the CP wire nozzle 19 for pressing the CP wire 2 against the pedestal portion 19a.
The CP wire 2 is held between the base portion 19a and the spring plate 19b. And the spring plate 19b
A pushing piece 20a attached to the swinging lever 20 is provided so that it can move toward and away from the swing lever 20, and by pressing the pushing piece 20a against the spring plate 19b, the CP wire 2 is prevented from moving during welding. It is now possible to fix it.

Therefore, as mentioned above, the aluminum wire 1
When moved to the welding position facing the tip of the CP wire 2, the welding mechanism is activated as shown in FIG. That is, the welding chuck member 18 and the CP
A current is passed between the wire nozzle 19, and together with this,
Activate the pressure solenoid 21 and pressurize the lever 2.
1a against the arm 18a of the welding chuck member 18 and by pushing this,
Welding can be performed by bringing the aluminum wire 1 into contact with the CP wire 2. After butt welding the aluminum wire 1 and the CP wire 2 in this way, two upper blades 22a that function as a CP wire cutting mechanism are used to cut the CP wire 2 to a predetermined length. , 22b and lower blade 2
A CP wire cutter 22 consisting of 2c is provided.

Next, after the aluminum wire 1 and the CP wire 2 are welded at the welding part W mentioned above,
Transfer chuck member 2 for aluminum wire 1
3, it can be checked. Therefore, the portion where the transfer chuck member 23 is disposed becomes a transfer portion. As shown in FIGS. 5 and 6, this transfer chuck member 23 has a pair of upper and lower chuck claws 23a,
23a, and each chuck pawl 23a can swing vertically about a shaft 24. A chuck opening spring 25 is provided between the chuck pawls 23a, 23a, which normally biases the chuck so that it is in an open state. A pushing piece 27 urged by a chuck actuating spring 26 is provided in contact with rollers 28, 28. A rod 29 is connected to the push piece 27, and the other end of the rod 29 is in contact with a lever 32 which is rotated about a rotation shaft 31 by a cam 30. In addition, chuck claw 2
3a and 23a are connected to a rotary drum 33, which is reciprocated by 180 degrees by a drive belt 34 driven by a cam mechanism (not shown), so that the transfer chuck Member 23
The tab terminal structure 3 that has been chucked can be reversed.

When the tab terminal structure 3 is turned 180° by the chuck member 23 as described above, the lead portion 3b of the tab terminal structure is attached to the index table 35 as shown in FIGS. 7 and 8. It is designed to be chucked by a plurality of conveyance chuck members 36 (eight conveyance chuck members are shown in the drawing) mounted on the holder. The chuck member 3
6 has a pair of chuck parts 36a and 36b that sandwich the lead part 3b of the tab terminal structure 3 from the left and right, and the arm 37 of one chuck part 36a is a fixed chuck that is held so as not to move in the left-right direction. The other chuck part 36b is a movable chuck part, and the chuck part 36b is connected to the arm 38.
The chuck release lever 40 is attached to a chuck release lever 40 that can be rotated in the horizontal direction about a shaft 39 attached to the chuck, and the lever 40 is always biased in the direction of contacting the chuck portion 36a on the fixed side by the action of a spring 41. It is being Further, as shown in FIG. 9, an operating roller 42 is vertically provided on the lever 40.
When the index table 35 rotates and the actuating roller 42 is placed in a position facing the transfer chuck member 23, the actuating roller 42 is pushed by an actuating member (not shown) in contact with it. , the lever 40 is rotated about the shaft 39 against the spring 41, and the chuck part 36b is moved against the chuck part 3.
The structure is such that the chuck can be brought to the open position which was spaced apart from the chuck 6a. Further, arms 37 and 38 that support these chuck portions 36a and 36b are fitted onto a horizontal shaft 43 and are rotatable in the vertical direction. A protrusion 44 is connected to these arms 37 and 38,
The protrusion 44 is normally biased in the upward rotational direction by a protrusion 46 biased by a spring 45, and in this state, the locking pieces 47 connected to the arms 37 and 38 lock the index table. 35 surface 35
When the conveying chuck member 36 is positioned at the press part P, the protrusions 46 are pushed in a direction against the spring 45, and the arms 37 and 38 are moved so that the protrusions 44 4
It can be rotated downward about the horizontal axis 43 until it comes into contact with the top of the holder 6.

Next, as described above, the conveying chuck member 3 is
The tab terminal structure 3 marked 6 is attached to the press part P by rotating the index table 35 by a predetermined angle (45° in this embodiment).
Transported to. As shown in FIG. 10, the press part P includes a lower punch 48 and a lower punch 4.
A press member consisting of an upper punch 49 provided above the punch 8 is provided, and the upper punch 49 is moved up and down by a lifting drive member such as a cam. Further, a trimming member 50 is provided around the upper punch 49 for trimming the tab forming portion 3a of the pressed tab terminal structure 3 into a predetermined shape. When pressing is performed by the punch 49, it descends together with the upper punch 49, and continues to descend even after the pressing is completed to press and deform the tab forming portion 3a into a flat shape. The trimming member 50 can be trimmed into a predetermined shape, and for this purpose, the trimming member 50 is driven separately from and synchronously with the upper punch 49. There is. Furthermore, in the figure, 5
1, when the conveyance chuck member 36 is located at the press part P, pushes the supporting protrusions 46 of the arms 37 and 38 provided on the conveyance chuck member 36;
Lowering the tab forming portion 3b of the tab terminal structure 3 held between the chuck portions 36a and 36b by a predetermined amount,
This is a push piece to be placed on the lower punch 48.

Note that each member constituting the welding portion W described above is provided on a movable table 52, and the movable table 5
2 can be moved in the direction of approaching or separating from the transfer chuck member 23.

This embodiment is constructed as described above, and its operation will be explained next.

First, as shown in FIG.
5 and moves the ball clamps 8 and 9 in the directions shown by arrows a and b, thereby removing the aluminum wire 1 and the CP wire 2 from the aluminum wire die 16 and the CP wire nozzle 19, respectively. Pull out. Here, aluminum wire 1
The CP wire 2 is pulled out by an amount corresponding to the length of the tab forming part 3a and lead part 3b when the tab terminal structure 3 is formed.
When the CP wire 2 is pulled out, its tip is placed at the installation position of the CP wire cutter 22. In addition,
After the aluminum wire 1 and the CP wire 2 are pulled out by the forward movement of the ball clamps 8 and 9, the ball clamps 8 and 9 moves in the direction opposite to arrows a and b and returns to its original state.

Next, the welding chuck member 18 operates in the direction of arrow c to chuck the aluminum wire 1 protruding from the aluminum wire die 16, and the cutter 17 moves in the direction of arrow d in the figure to chuck the aluminum wire 1.
After cutting, it returns to its original position. Therefore, the CP wire cutter 22 is operated to smoothly perform butt welding using the upper blade 22b and lower blade 22c of the two upper blades 22a and 22b of the cutter 22. Make sure that the tip of wire 2 descends so that it becomes sharp.

Thereafter, the welding chuck member 18 is moved in the direction of arrow f, and the aluminum wire 1 constituting the tab forming portion 3a, which has been cut to a predetermined length, is CP.
Move it to a position facing line 2. At the same time, the swing lever 20 is rotated in the direction of arrow e,
The CP wire 2 is fixed by pressing the pushing piece 20a against the spring plate 19b. In this state, as shown in FIG. 4, the welding chuck member 18 and
CP line nozzle 19 is energized, pressure solenoid 21 is activated, and pressure lever 21a is activated.
is rotated in the direction of arrow g in FIG. 3 and pressed against the arm 18a of the welding chuck member 18, thereby joining the tab forming portion 3a to the CP wire 2, and welding is performed therebetween.

When this welding is completed, the swing lever 20 is rotated in the direction opposite to the arrow e to release the pressing force against the spring plate 19b. Also, by operating the welding chuck member 18 in the direction opposite to the arrow c,
The chuck on the aluminum wire 1 is released and the aluminum wire 1 is moved in the opposite direction to the arrow f to return to its original position. Therefore, the ball clamps 6 and 7, which have returned to their original positions, are moved again in the directions of arrows a and b, and the aluminum wire 1 is pulled out, and a tab made of aluminum wire is welded to the tip of the CP wire 2. The forming portion 3a is sent toward the transfer chuck member 23. At this time, the chuck claws 23a, 23a constituting the transfer chuck member 23 are kept in a chuck-released state.

When the tab forming part 3a connected to the CP wire 2 is fed between the chuck claws 23a, 23a, the lever 3
2 in the direction of the arrow h, the pushing piece 27 is moved in the direction of the arrow i by the action of the chuck operating spring 26, and the chuck pawl 23a is closed. Check the part of the aluminum wire 1 that is located. When this state is reached, the CP wire cutter 22 is operated to cut the CP wire 2, thereby cutting the tab terminal structure 3.
The tab forming part 3a and the lead part 3b that constitute the
It becomes possible to form it in a state separated from the CP wire 2. Here, the CP wire cutter 22 is a double cutter having two upper blades, and one of the upper blades 22a cuts the end of the CP wire on the side that forms the tab terminal structure 3 flatly. Then, the aluminum wire can be cut into a sharp point at the part to be welded.

After that, the movable chuck portion 36 of the conveying chuck member 36 provided on the index table 35
b is separated from the fixed chuck portion 36a and faces the transfer chuck member 23, and in this state, the drive belt 34 is operated to rotate the rotary drum 33 and perform the transfer. Rotate the chuck member 23 by 180° in the direction of arrow j,
The state shown in FIG. 6 is established. Then, by displacing the chuck portion 36b of the conveying chuck member 36 toward the chuck member 36a, the lead portion 3a of the tab terminal structure 3 is attached to the conveying chuck member 36.
is checked. Therefore, by releasing the chuck on the transfer chuck member 23, the tab terminal structure 3 is transferred to the transport chuck member 36. In this case, the transfer chuck member 23 is kept in the same state, and when the next tab terminal structure 3 is chucked, it is rotated by 180° in the direction opposite to the arrow j. The transfer will be carried out.

The tab terminal structure 3 transferred to the conveying chuck member 36 as described above is conveyed to the press section P by rotating the index table 35 in the direction of arrow k in FIG. be done. Therefore, the pushing piece 51 provided in the press part P
By coming into contact with the spring 45, the protrusion 46 is displaced in a direction against the spring 45, and as a result,
The tab forming portion 3a of the tab terminal structure 3, which has been lowered to a position where the protrusion 44 abuts the protrusion 46 and is chucked by the chuck portions 36a, 36b provided at the tips of the arms 37, 38, is removed by the lower punch 48. It will be installed on top. Then, the upper punch 48 is lowered to press the tab forming portion 3a into a flat shape, and the trimming member 50 that descends together with the upper punch 48 forms the tab forming portion 3a into a predetermined shape, as shown in FIG. A tab terminal T having a tab portion and a lead portion as shown can be manufactured. The tab terminal T manufactured in this manner is unchucked until the index table 35 rotates and the transporting chuck member 36 comes to a position facing the transfer chuck member 23. The product is taken out.

By sequentially repeating the above operations, tab terminals T can be manufactured continuously. Therefore, it is welded at the welding part W, and CP
Before cutting the wire 2, transfer chuck member 23
When the tab terminal structure 3 is separated by checking and cutting the CP wire 2,
By rotating the transfer chuck member 23 by 180 degrees, the transfer chuck member 36 is transferred to the transfer chuck member 36 provided on the index table 35, and while chucked on the transfer chuck member 36, it is transferred to the press section P. Since the tab terminal T can be transported to a machine and pressed, it is possible to manufacture the tab terminal T at extremely high speed and in a stable condition, regardless of the shape of the welded part, and the manufacturing efficiency is significantly improved. do. Furthermore, since the transfer chuck member 23 is interposed between the welding part W and the press part P, the mechanism for transferring from the welding part W to the press part P is simplified. This allows the device to be made smaller and more compact.

In the above-described embodiment, when the tab terminal structure 3 is transferred to the transport chuck member 36 by the transfer chuck member 23, the transfer chuck member 23 is reciprocated by 180° in the vertical direction. As a result, the tab terminal structure 3 can be smoothly transferred without indexing the transfer chuck member 23, but the transfer chuck member 23 can be rotated in one direction. The tab terminal structure 3 may be transferred by rotating the tab terminal structure 3 or by rotating it horizontally. Further, in the press section P, the tab forming part 3a of the tab terminal structure 3 chucked by the conveying chuck member 36 is placed on the lower punch 48, and the upper punch 49 is lowered to perform pressing. However, if not only the upper punch but also the lower punch is made movable, it becomes possible to press the tab terminal structure 3 chucked on the conveying chuck member 36 while holding it in the same position.

[Effects of the Invention] As detailed above, according to the present invention, the transfer chuck member is interposed between the welding part and the press part, and the tab terminal structure is moved by the transfer chuck member. Since it is configured to be transferred, the tab terminal assembly can be transferred at high speed and in a stable condition using a simple and compact transfer mechanism, which greatly improves the manufacturing efficiency of tab terminals. However, the production amount per unit time can be significantly improved.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the overall configuration of the tab terminal manufacturing equipment, Fig. 2 is an external view of the tab terminal assembly, and Fig. 3 is a perspective view showing the overall configuration of the tab terminal manufacturing device.
Figure 4 is an explanatory diagram showing the structure and function of the welding part, Figure 4 is an explanatory diagram showing the welding process, Figure 5 is a front view of the main part of the transfer chuck member, Figure 6 is a plan view of Figure 5,
Fig. 7 is an explanatory diagram of the structure of the conveying chuck member provided on the index table, Fig. 8 is a partial cross-sectional side view of Fig. 7, Fig. 9 is a front view of the conveying chuck member, and Fig. 10 is a press. Explanatory diagram of the structure of the section, 11th
The figure is an external view of the tab terminal. 1... Aluminum wire, 2... CP wire, 3...
Tab terminal structure, 3a...Tab forming part, 3b...
Lead portion, 18... Welding chuck member, 19...
...CP wire nozzle, 22...CP wire cutter, 23...
Transfer chuck member, 23a... chuck claw, 3
3... Rotating drum, 34... Drive belt, 35...
... Index table, 36 ... Conveyance chuck member, 48 ... Lower punch, 49 ... Upper punch,
50...trimming member, P...pressing part, S...
...Supply section, T...Tab terminal, W...Welding section.

Claims (1)

[Claims] 1 Aluminum wire feeding mechanism, CP wire feeding mechanism, aluminum wire cutting mechanism that cuts the aluminum wire to a predetermined length, welding mechanism that welds the aluminum wire cut to the predetermined length to the CP wire, and the CP wire after welding A welding section having a CP wire cutting mechanism for cutting the CP wire to a predetermined length, a conveying chuck means for chucking the tab terminal structure formed at this welding section, and a flattening of the aluminum wire portion of the tab terminal structure. a press part having a press means for pressing the welded part, and a transfer part to transfer the tab terminal structure formed by the welded part to the press part, and the transfer part includes a rotating shaft provided therein; a transfer chuck means connected to the rotating shaft for checking a portion of the aluminum wire;
drive means for intermittently rotating the rotation shaft in one direction at 180° increments around the axis, and after welding the aluminum wire and before cutting the CP wire, the aluminum wire is moved by a transfer chuck means. The tab terminal structure is vertically reversed by turning the rotation shaft by 180 degrees, and then transferred to the conveyance chuck means of the press section. Features: Tab terminal manufacturing equipment.