JPS5881578A - Resistance welding device - Google Patents
Resistance welding deviceInfo
- Publication number
- JPS5881578A JPS5881578A JP17856481A JP17856481A JPS5881578A JP S5881578 A JPS5881578 A JP S5881578A JP 17856481 A JP17856481 A JP 17856481A JP 17856481 A JP17856481 A JP 17856481A JP S5881578 A JPS5881578 A JP S5881578A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- pedestal
- face
- insulator
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/0033—Welding locally a thin plate to a large piece
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Switches (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は抵抗溶接装置に関するものであり、例えば台
座の一端部に接点をスポット溶接する抵抗溶接装置に関
するものである、。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a resistance welding device, for example, a resistance welding device for spot welding a contact point to one end of a pedestal.
第１図は従来の抵抗溶接装置を示す構成図である。第１
図において、第１の導体である台座（１）の一端部（１
０１）の表面には第２の導体である接点（２）がスポッ
ト溶接されるものである。第１の電極（３）は接点（２
）に当接されている。第２の電極（４）は第１の電極（
３）に対向して台座（１）の裏面に当接されている。溶
接電源（５）は第１．第２の電極（３） 、’ （４）
間に接続されている。FIG. 1 is a block diagram showing a conventional resistance welding device. 1st
In the figure, one end (1
A contact point (2), which is a second conductor, is spot welded to the surface of 01). The first electrode (3) is the contact point (2
). The second electrode (4) is the first electrode (
3) and is in contact with the back surface of the pedestal (1). The welding power source (5) is the first one. Second electrode (3),' (4)
connected between.
次に従来装置の動作を説明する。第１．第２の電極（３
） 、 （４）間に接点（２）と台座（１）の一端部（
１０１）とをはさみ、加圧した後溶接電源（５）により
通電じてジュール発熱により接点（２）と一端部（１０
１）とを接合していた。Next, the operation of the conventional device will be explained. 1st. Second electrode (3
), (4) between the contact (2) and one end of the pedestal (1) (
101) and pressurized, the welding power source (5) energizes the contact (2) and one end (10) due to Joule heat generation.
1) were joined.
しかし、このようないわゆるダイレクト通電方式のスポ
ット溶接機により、接点（２）を台座（１）の一端部（
１０１）に接合する場合、接合界面における温度上昇不
均一に伴う接合不良を発生しやすかったこの状況を第２
図に基づいて説明する。However, with such a so-called direct current type spot welding machine, the contact (2) is attached to one end of the pedestal (1) (
101), bonding failures were likely to occur due to uneven temperature rise at the bonding interface.
This will be explained based on the diagram.
第２図は従来の抵抗溶接装置による接合状態を示す概念
図である。第２図において、接合層（６）は台座（１）
の一端部（１０１）と接点（２）とが接合される層であ
る。溶出金属（７）は接合層（６）より溶出した金属で
ある。接合欠陥部（８）は台座（１）の一端部（１０１
）と接点（２）との間において接合層（６）が形成され
ない部分である。FIG. 2 is a conceptual diagram showing a welding state using a conventional resistance welding device. In Figure 2, the bonding layer (6) is attached to the pedestal (1).
This is the layer where one end (101) of the contact point (2) is joined. The eluted metal (7) is metal eluted from the bonding layer (6). The defective joint (8) is located at one end (101) of the pedestal (1).
) and the contact (2) where the bonding layer (6) is not formed.
即ち、第２図に示すように台座（１）の一端部（１０１
）の端部側においては接合層（６）が形成され、溶出金
属（７）の垂れ落ちも著しい。一方、台座（１）の一端
部（１０１）の端部と反対側では、切欠きなどの接合欠
陥部（８）を発生する傾向が強い。次にこのような接合
欠陥部（８）の発生原因を第８図に基づいて説明する。That is, as shown in FIG. 2, one end (101
), a bonding layer (6) is formed on the end side, and the eluted metal (7) drips down significantly. On the other hand, there is a strong tendency for bonding defects (8) such as notches to occur on the side opposite to the end of one end (101) of the pedestal (1). Next, the cause of the occurrence of such a joint defect portion (8) will be explained based on FIG. 8.
第８図は従来の抵抗溶接装置の欠点発生原因説明図であ
る。第８図に示すように、台座（１）の一端部（１０１
）の端部側においては、台座（１）の端面で熱飽和を生
じるが、逆にこれと反対側である他端側には、長手方向
に流路Ｃが形成される。このため、接合界面におけるＡ
点からＢ点にかけての温度は、ＴＡ−ＴＢの如く急激な
下り勾配を有しており、接合結果として台座（１）の一
端部（１０１）の端部側では溶（８）が発生する。FIG. 8 is an explanatory diagram of causes of defects in conventional resistance welding equipment. As shown in FIG. 8, one end (101
), heat saturation occurs at the end face of the base (1), but conversely, at the other end, which is the opposite side, a flow path C is formed in the longitudinal direction. Therefore, A at the bonding interface
The temperature from point to point B has a steep downward slope like TA-TB, and as a result of joining, melting (8) occurs on the end side of one end (101) of the pedestal (1).
この発明は上記のような従来のものの欠点を除去するた
めになされたもので、第１．第２の電極（３） 、 （
４）の少くとも一方の加圧通電面を、導体と絶縁体もし
くは電気抵抗率の異なる二種類の導体で構成することに
より、接合界面における温度上昇の均一化を図り、もっ
て安定な接合を達成することができる抵抗溶接装置を提
供することを目的とするものである。以下この発明の一
実施例を図に基づいて説明する。This invention was made in order to eliminate the drawbacks of the conventional ones as described above. Second electrode (3), (
By configuring at least one pressurized current-carrying surface in 4) with a conductor and an insulator or two types of conductors with different electrical resistivities, the temperature rise at the bonding interface is made uniform, thereby achieving stable bonding. The object of the present invention is to provide a resistance welding device that can perform the following steps. An embodiment of the present invention will be described below based on the drawings.
第４図はこの発明に係る抵抗溶接装置の一実施例を示す
構成図である。図中第１図と同一部分には同一符号を付
している。第４図において、絶縁体（９）は第２の電極
（４）の加圧通電面において、台座（１）の一端部（１
０１）の端面側に設けられている。FIG. 4 is a configuration diagram showing an embodiment of a resistance welding apparatus according to the present invention. In the figure, the same parts as in FIG. 1 are given the same reference numerals. In FIG. 4, the insulator (9) is located at one end (1
01) is provided on the end face side.
次にこの発明の装置の動作を第５図を用いて説明する。Next, the operation of the apparatus of this invention will be explained using FIG.
今、第１の導体である台座（１）の一端部（１０１）と
第２の導体である接点（２）とを第１．第２の電極（３
） 、 （４）で挾持して加圧通電すると、溶接電流は
第５図の破線矢印で示すように台座（１）の一端部（１
０１）の端面の反対側（１０２）に偏って流れ、反対側
（１０２）を積極的に発熱させる。この結果、台座（１
）の一端部（１０１）の端面方向及び反対側（１０２）
方向に、熱流Ｃ′及びＣが形成される。この場合、接点
（２）及び台座（１）の寸法に応じて、絶縁体（９）の
台座（１）との接触面を適正な値に設定することにより
、接合界面のＡ点とＢ点との温度差は、第５図に示すＴ
Ａ−ＴＢのように極めて小さくなり、従来の如く溶出金
属（７）の垂れ落ちや切欠きなどの接合欠陥部（８）の
発生がなく、良好な接合層（６）をもつ安定した接合部
が得られる。Now, connect one end (101) of the pedestal (1), which is the first conductor, and the contact (2), which is the second conductor, to the first. Second electrode (3
) and (4) and apply pressure, the welding current flows to one end (1) of the pedestal (1) as shown by the broken line arrow in
01) flows toward the opposite side (102), actively generating heat on the opposite side (102). As a result, the pedestal (1
) toward the end face of one end (101) and the opposite side (102)
In the direction, heat flows C' and C are formed. In this case, by setting the contact surface of the insulator (9) with the pedestal (1) to an appropriate value according to the dimensions of the contact (2) and the pedestal (1), points A and B at the bonding interface can be set. The temperature difference between T and T shown in Figure 5 is
It is extremely small like A-TB, does not have bonding defects (8) such as dripping of eluted metal (7) or notches, and has a stable bonding layer (6). is obtained.
なお、上記実施例では第２の電極（４）の加圧通電面の
一部に絶縁体（９）を取付けて、電流分布を台座（１）
の他端側（１０２）に偏らせたが、第１の電極（３）の
加圧通電面に絶縁体（９）を取付けてもよい。また絶縁
体（９）の代わりに第１．第２の電極（３） 、 （４
）よりも電気抵抗率の高い導体を設けてもよい。In the above embodiment, an insulator (9) is attached to a part of the pressurized current-carrying surface of the second electrode (4), and the current distribution is adjusted to the pedestal (1).
Although it is biased toward the other end (102), the insulator (9) may be attached to the pressurized current-carrying surface of the first electrode (3). Also, instead of the insulator (9), the first. Second electrode (3), (4
) may be provided.
以上のようにこの発明によれば、第１．第２の導体の接
合界面における温度上昇の均一化を図ることができ、接
合の安定性を格段に向上させることができる効果を有す
る。As described above, according to the present invention, the first. This has the effect of making it possible to equalize the temperature rise at the bonding interface of the second conductor and significantly improving the stability of the bond.
第１図は従来の抵抗溶接装置を示す構成図、第２図は従
来の抵抗溶接装置による接合状態を示す概念図、第８図
は従来の抵抗溶接装置の欠点発生原因説明図、第４図は
この発明に係る抵抗溶接装置の一実施例を示す構成図、
第６図はこの発明の動作説明図である。
図において、各図中同一部分は同一符号を付しており、
（１）は台座、（１０１）は一端部、（１０２）は他端
側、（２）は接点、（３） 、 （４）は第１．第２の
電極、（５）は溶接電源、（９）は絶縁体である。
代理人 弁理士 葛野信−
第１図
−４２９−
手続補正書（自発）
特許庁長官殿
１、事件の表示 特願昭５６−１７８５６４号２
、発明の名称
抵抗溶接装置
３、補正をする者
事件との関係 特許出願人
（１）
５、 補正の対象
明細書の発明の詳細な説明の欄
６、 補正の内容
（１）明細書、第５頁第６行に［接触面をコとあるのを
、「接触面積を」と訂正する。
誹′ＡＡ
（２）Fig. 1 is a configuration diagram showing a conventional resistance welding device, Fig. 2 is a conceptual diagram showing a joining state by a conventional resistance welding device, Fig. 8 is an explanatory diagram of causes of defects in a conventional resistance welding device, and Fig. 4 is a configuration diagram showing an embodiment of a resistance welding device according to the present invention,
FIG. 6 is an explanatory diagram of the operation of this invention. In the figures, the same parts in each figure are given the same reference numerals.
(1) is the pedestal, (101) is one end, (102) is the other end, (2) is the contact, (3) and (4) are the first. The second electrode (5) is a welding power source, and (9) is an insulator. Agent Patent Attorney Makoto Kuzuno - Figure 1 -429 - Procedural Amendment (Voluntary) Commissioner of the Japan Patent Office 1, Indication of Case Patent Application No. 178564/1982 2
, Title of the invention Resistance welding device 3, Relationship with the case of the person making the amendment Patent applicant (1) 5. Column 6 for detailed explanation of the invention in the specification subject to the amendment 6. Contents of the amendment (1) Specification, No. On page 5, line 6, [Correct the ``contact surface'' to ``contact area.''Libel'AA (2)
Claims (2)
、前記第１．第２の導体を挾持し加圧通電される第１．
第２の電極を備え、前記第１．第２の電極の少くとも一
方の加圧通電面を導体と絶縁体もしくは電気抵抗率の異
なる二種類の導体で構成したことを特徴とする抵抗溶接
装置。(1) a first conductor to which a second conductor is bonded to the surface of one end; The first conductor holds the second conductor and is energized under pressure.
a second electrode; A resistance welding device characterized in that at least one pressurizing current-carrying surface of the second electrode is composed of a conductor and an insulator or two types of conductors having different electrical resistivities.
の高い導体は、加圧通電面の第１の導体の一端部端面側
に設けられている特許請求の範囲第（１）項記載の抵抗
溶接装置。(2) The insulator or the conductor with higher electrical resistivity of the two types of conductors is provided on the end surface side of one end of the first conductor of the pressurized current-carrying surface. resistance welding equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17856481A JPS5881578A (en) | 1981-11-05 | 1981-11-05 | Resistance welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17856481A JPS5881578A (en) | 1981-11-05 | 1981-11-05 | Resistance welding device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5881578A true JPS5881578A (en) | 1983-05-16 |
| JPS638877B2 JPS638877B2 (en) | 1988-02-24 |
Family
ID=16050682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17856481A Granted JPS5881578A (en) | 1981-11-05 | 1981-11-05 | Resistance welding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5881578A (en) |
-
1981
- 1981-11-05 JP JP17856481A patent/JPS5881578A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS638877B2 (en) | 1988-02-24 |
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