JP3424323B2 - Welding equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tantalum electrolytic capacitor.
Wire and tantalum wire of tantalum electrode body in manufacturing process
Used when joining thin stainless steel plates by resistance welding.
The present invention relates to a welding device. [0002] 2. Description of the Related Art Drawings of a conventional welding apparatus of this type are shown in FIGS.
It will be described using FIG. FIG. 5 shows a product to be welded by the above welding apparatus.
Stainless steel plate 1 with a thin plate thickness
The tantalum wire 2a in the tantalum electrode body 2 is as shown in FIG.
This shows a state in which they are brought into contact with each other and resistance welding is performed. FIG. 6 is a perspective view showing a main part of a conventional welding apparatus.
In the welding device shown in FIG.
Circle on the positive electrode holder 42 attached to the tip of
A plate-shaped positive electrode 43 is attached, and a negative electrode is
The electrode 48 is fixed. The positive electrode 43 is a support shaft 4
It is designed to rotate around 4 and a positive electrode holder
A friction plate 45 and a compression spring 46 between
Therefore, a rotational resistance is given. Also, the friction plate 45 is
Plays the role of a power supply plate for supplying power to the electrodes 43
You. Further, as shown in FIGS. 7 (a) and 7 (b),
A fixed friction plate 49 is provided on a track on which the electrode 43 moves up and down.
When the positive electrode 43 moves up and down, the fixed friction plate 4
9 by contacting the positive electrode 43 with the positive electrode 43.
The positive electrode is rotated each time welding is performed.
43 welding points had changed. [0006] SUMMARY OF THE INVENTION
In the configuration described above, a thin stainless steel plate 1 and a tantalum wire 2a
When welding, the melting point of each material (stainless steel
1600 ℃, tantalum about 3000 ℃)
The welding conditions are very difficult, and with the above conventional welding equipment
Frequent changes in conditions occur, and the thin stainless steel plate 1
Warp or decrease in welding strength of tantalum wire 2a
Has a problem that it occurs on a daily basis. The cause is as shown in FIG.
The rotation of 43 depends only on the frictional force with the friction plate 45
Because it is uncertain and irregular
Worn out if not or hardly able to send
Welded again in minutes and caused poor welding
It was. Further, as shown in FIG. 9, the negative electrode 48 is fixed.
The welding point becomes severe,
Poles 48 had to be replaced. Further, as shown in FIG.
Only for the positive electrode 43, the friction surface
Changes in the contact resistance during this
This was due to fluctuations. [0010] The present invention solves the above-mentioned conventional problems and reduces wear and tear.
Defective welding occurs at the welding point
No exchange, no unstable power supply, stable welding
To provide an excellent welding device that can perform welding for a long time.
And for the purpose. [0011] [MEANS FOR SOLVING THE PROBLEMS]
The welding device according to the present invention is mounted on the main body so that it can move up and down.
The anode-side electrode holder and the anode-side electrode holder
Disk-shaped positive electrode rotatably mounted on the
A gear fixed to the positive electrode via a shaft;
When the positive electrode moves up and down, open the gear attached to the positive electrode.
To rotate the disk-shaped positive electrode forward, and rotate the disk-shaped positive electrode in half.
When the positive electrode kicks up and down and the positive electrode moves up and down,
Open a disk-shaped positive electrode by opening the gear attached to the positive electrode.
For reverse rotation, reverse rotation of the disk-shaped positive electrode by half rotation
Kicker andHas, Selectively use those kickers in gear
Let me touchRotational motion imparting means for rotating the positive electrode
And placed below the positive electrode and rotatably mounted on the body.
Via a disk-shaped negative electrode attached to the electrode shaft
Gear fixed to the above negative electrode and attached to this negative electrode
Open the gear and rotate the disc-shaped negative electrode forward to
Kicker for positive rotation, which rotates the negative electrode
Reverse the disc-shaped negative electrode by opening the gear attached to the electrode
Rotate to rotate the disk-shaped negative electrode half way around.
Kicker andAnd selectively use those kickers in gear
Rotational motion applying means for rotating the negative electrode by contact
And the above-mentioned positive electrode and negative electrode
Power supply line that is fixed via
Power supply connected to the output side and the control unit that controls these
This is a configuration made up of: [0012] According to this configuration, the positive electrode can be changed according to the amount of electrode wear.
It can be moved automatically by any amount and is worn once
Since the welding point will not be used again,
This can prevent the occurrence of poor welding. Also, the negative electrode
Can be moved as well, so change the cathode frequently
Will not be done. In addition, power is supplied to both the positive and negative electrodesline
Is fixedThe contact resistance change during power supply
Movement is eliminated, and the amount of welding electrode wear can be accurately controlled.
In addition, stable welding can be performed for a long time. [0013] 1 to 3 show an embodiment of the present invention.
This will be described with reference to FIG. FIG. 1 shows the configuration of a welding apparatus according to the embodiment.
FIG. 2 to FIG. 4 are front views of main parts showing the operation.
You. In FIG. 1, 3 is attached to the main body 12.
Shaft that is moved up and down by another power (not shown).
The tip of this shaft 3 has the anode side
The electrode holder 4 is fixed. This electrode holder 4
The electrode shaft 5 is attached so that it can rotate.
At the tip, a disc-shaped positive electrode 6 and a positive electrode 6
A friction plate 7 for applying friction and a compression spring 8
is there. The electrode shaft 5 has an electrode shaft
To rotate g5Had in the rotary motion imparting meansgear
9 and the power supply block 10 and the power supply line 11
The power supply line 11 is connected to a welding power supply 25. The electrode holder 4 moves up and down on the main body 12.
Every time you open gear 9 and rotate positive electrode 6Times
Rolling motion imparting meansKickers 13a and 13brotation
Had in the exercise imparting meansConnect to air cylinders 14a, 14b
It is tied and attached. Kicker 13a, 13b
Reciprocates up and down by driving the air cylinders 14a and 14b
It is designed to move, and it is necessary to rotate the positive electrode 6
You can choose whether to do it. Further, reference numeral 15 is attached to the main body 12.
An electrode shaft, at the tip of which is a disk-shaped negative electrode 16
Installed and rotate the electrode shaft 15 in the middle
To give friction to gear 17 and negative electrode 16 for
Plate 18, compression spring 19 and spring holder 20 are attached
is there. Also, an electrode blower is provided at the rear end of the electrode shaft 15.
And the power supply line 22 are fixed.
Are connected to a welding power source 25. The main body 12
Had in the rotary motion imparting meansOpen the negative electrode 16
Like rotatingHad in the rotary motion imparting meansKicker
23a, 23bHad in the rotary motion imparting meansAir silin
It is connected and attached to the dies 24a and 24b. Ki
The lockers 23a and 23b are provided with air cylinders 24a and 24b.
Reciprocate back and forth by driving to rotate the negative electrode 16
It has become. With the welding apparatus of the present invention thus configured,
For welding thin stainless steel plate 1 and tantalum wire 2a
In this case, as shown in FIG.
The plate 1 and the tantalum wire 2a are placed, and the positive electrode 6 is lowered.
By applying a welding current with the
Can be welded. However, welding was performed in this state.
When it is returned, the welding point of the positive electrode 6 gradually wears, and
Welding that can be welded in advance to get good quality
After checking the number of times, as shown in FIGS.
Air cylinder 14a is automatically driven after welding the number of times
When the positive electrode 6 risesFor forward rotationKicker 13
a opens the positive electrode 6 with the gear 9CorrectRotate to remove weld points
The control is performed by the control unit 26 as described below. in this way
And repeat welding, rotation of positive electrode 6Half a lap
Stop welding when it reaches 180 °. In this case,
Of electrode 6CorrectThe feed line 11 also rotatesCorrectRotating
Is twisted by 180 degrees. So here
As shown in FIG. 3B, only the positive electrode 6 is manually rotated by 180 °.
It can be rotated in the opposite direction and welded at the parts that are not worn
Be prepared.This allows 180 ° twisted feed
The wire 11 also returns to the untwisted state. Next, as shown in FIGS. 4A and 4B,
Drive the air cylinder 14bback reverse
ForThe positive electrode 6 is rotated in the reverse direction by the kicker 13b.
Welding is repeated and continued, welding as many times as possible
I do. At this time, the positive electrode 6 is
First, the feeder line 11 is also with the positive electrode 6ReverseTo rotate,Reverse
Is twisted by 180 °.Repeat welding
When the entire circumference of the positive electrode 6 is used,
Replace with a new one. The negative electrode 16 is also used for the positive electrode 6.
Work in the same manner as above, and use all
Replace when used. The power supply lines 11 and 22
Is fixed to the electrode and repeats 180 ° reciprocal reversal
There is no problem with power supply. In the above embodiment, a thin stainless steel plate is used.
Explanation will be made using a welding device for welding the material 1 and the tantalum wire 2a as an example.
However, the present invention is not limited to this,
Resistance welding machines that join different metals or dissimilar metals
Needless to say, it can be used throughout. [0023] According to the present invention configured as described above,
The welding equipment has the following effects, and its industrial effects
The fruit is great. 1. The positive electrode welding point depends on the amount of positive electrode wear.
Positive electrode because it can be moved automatically and arbitrarily
Can accurately control the wear amount of
Welding defects due to the above can be eliminated. 2. The welding point is automatically set for the negative electrode as well.
It can be moved arbitrarily with the
The degree can be reduced. 3. Direct power supply to positive and negative electrodesI'm doing
Eliminates fluctuations in contact resistance during power supplyBecause you can
Stable welding can be performed.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a welding device according to an embodiment of the present invention. FIG. 2 is a front view of a main part showing the operation of the welding device according to the embodiment. FIG. 4 is a main part front view showing the operation of the welding apparatus according to the embodiment. FIG. 5 is a perspective view showing a product to be welded by the welding apparatus according to the embodiment. FIG. 7 is a perspective view of a main part showing a conventional welding apparatus. FIG. 7 is a front view of a main part showing the operation of the conventional welding apparatus. FIG. 8 is a front view of a main part showing the operation of the conventional welding apparatus. Front view of main part showing welding apparatus [FIG. 10] Side view of main part showing conventional welding apparatus [Description of symbols] 1 Plate material 2a Tantalum wire 3 Shaft 4 Electrode holder 5 Electrode shaft 6 Positive electrode 7 Friction plate 8 Compression spring 9 Gear 10 Power supply block 11 Power supply line 12 Main bodies 13a, 13b Kicker 14a 14b air cylinder 15 electrode shaft 16 negative electrode 17 gear 18 friction plates 19 a compression spring 20 spring holder 21 feeding block 22 the feed line 23a, 23b kicker 24a, 24b air cylinder 25 welding power supply 26 controller

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B23K 11/30 307 B23K 11/20 H01G 9/004 H01G 13/00 371

Claims (1)

(57) [Claims] [Claim 1] An anode electrode holder movably mounted on the main body, a disc-shaped positive electrode rotatably mounted on the anode electrode holder, and an electrode shaft. And a gear fixed to the positive electrode via the gear, and a gear attached to the positive electrode when the positive electrode moves up and down to rotate the disc-shaped positive electrode forward to make the disc-shaped positive electrode make a half turn. A kicker for positive rotation, and a kicker for reverse rotation that opens the gear attached to the positive electrode when the positive electrode moves up and down, rotates the disk-shaped positive electrode in the reverse direction, and reverses the disk-shaped positive electrode in half. To
It has, above in selectively brought into contact with the gear their kicker
A rotating motion imparting means for rotating the positive electrode, a disk-shaped negative electrode disposed below the positive electrode and rotatably attached to the main body, and a gear fixed to the negative electrode via an electrode shaft. By turning the gear attached to this negative electrode, the disk-shaped negative electrode is rotated forward, and the kicker for positive rotation that makes the disk-shaped negative electrode make a half turn, and the gear attached to this negative electrode is opened, the disk-shaped Yes of the negative electrode is reversely rotated, and a kicker for reverse rotation to half a disc-shaped negative electrode in the opposite
And selectively bring those kickers into contact with the gears.
A rotating motion applying means for rotating the negative electrode, a power supply line fixed to the positive electrode and the negative electrode via an electrode shaft to supply power, a power supply having the power supply line connected to the output side, and a control for controlling these power supply lines Welding equipment consisting of parts.