JPH05305457A - Forming device for electorde tip face for spot welding - Google Patents
Forming device for electorde tip face for spot weldingInfo
- Publication number
- JPH05305457A JPH05305457A JP13166492A JP13166492A JPH05305457A JP H05305457 A JPH05305457 A JP H05305457A JP 13166492 A JP13166492 A JP 13166492A JP 13166492 A JP13166492 A JP 13166492A JP H05305457 A JPH05305457 A JP H05305457A
- Authority
- JP
- Japan
- Prior art keywords
- cutting
- electrode
- tip surface
- spot welding
- blade holder
- 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
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、重ね合わせた金属板を
挟着し、これを加圧しながら通電して抵抗溶接するいわ
ゆるスポット溶接で使用する電極の先端面成形装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode tip surface forming apparatus used in so-called spot welding, in which superposed metal plates are sandwiched and resistance welding is performed by energizing them while applying pressure.
【０００２】[0002]
【従来の技術】上記スポット溶接用電極の先端面形状に
は、フラット形やドーム（半円球）形或いは円錐形など
があるが、この電極は加圧下で溶接を続けると先端面が
次第に磨滅してきて合金層が形成され、溶接不良とな
る。そこで従来は、図５に示すような電極先端面成形装
置により磨滅した電極の先端面を切削して再生してい
た。2. Description of the Related Art The tip surface of the above spot welding electrode has a flat shape, a dome (hemispherical sphere) shape, a conical shape, or the like. However, the tip surface is gradually worn away when welding is continued under pressure. Then, an alloy layer is formed, resulting in poor welding. Therefore, in the past, the tip surface of the worn electrode was cut and regenerated by an electrode tip surface forming apparatus as shown in FIG.
【０００３】すなわち、図５において、１１は電極の先
端面を再生する成形装置のケースであり、該ケース１１
内に、上下に切削刃２２Ａ，２２Ｂを有する一対のカッ
タ２２ー１，２２ー２を円筒状の刃物ホルダ２３に嵌合
するとゝもに、該刃物ホルダ２３の外周にギヤ２４を固
定し、該ギヤ２４とエアモータ２５の主軸に固定したギ
ヤ２６とを伝達ギヤ２７で連結した構成であり、切削す
る電極２８Ａ，２８Ｂは前記刃物ホルダ２３の上下にお
いて同軸上に設置してある。そこで、エアモータ２５に
より伝達ギヤ２７を介して刃物ホルダ２３が回転する
と、上下に位置する電極２８Ａ，２８Ｂの先端面が刃物
ホルダ２３内に挿入され、夫々カッタ２２ー１，２２ー
２の切削刃２２Ａ，２２Ｂにより正常形状に切削され再
生される。That is, in FIG. 5, reference numeral 11 denotes a case of a molding apparatus for reproducing the tip end surface of the electrode.
When a pair of cutters 22-1, 22-2 having upper and lower cutting blades 22A, 22B are fitted into a cylindrical blade holder 23, a gear 24 is fixed to the outer periphery of the blade holder 23. The gear 24 and the gear 26 fixed to the main shaft of the air motor 25 are connected by a transmission gear 27, and the cutting electrodes 28A and 28B are coaxially arranged above and below the blade holder 23. Therefore, when the blade holder 23 is rotated by the air motor 25 via the transmission gear 27, the tip surfaces of the electrodes 28A and 28B positioned above and below are inserted into the blade holder 23, and the cutting blades of the cutters 22-1, 22-2 are respectively inserted. 22A and 22B cut into a normal shape and reproduced.
【０００４】ここで、上記刃物ホルダ２３内に嵌合され
る従来のカッタ２２は、図６及び図７に示すように、上
下に円弧形状の切削刃２２Ａ，２２Ｂを有する一対のカ
ッタ２２ー１，２２ー２で構成され、この両カッタ２２
ー１，２２ー２は刃物ホルダ２３の胴部２３Ａに開口し
た縦穴２９内から胴部２３Ａ内に挿入され、刃物ホルダ
２３の直径方向に付き合わせて、その付き合わせ部が胴
部２３Ａの中心Ｏと一致するように固定してある。Here, as shown in FIGS. 6 and 7, the conventional cutter 22 fitted in the blade holder 23 has a pair of cutters 22-1 having upper and lower arc-shaped cutting blades 22A and 22B. , 22-2, both cutters 22
-1, 22-2 are inserted into the body portion 23A through the vertical holes 29 opened in the body portion 23A of the blade holder 23, and are aligned in the diameter direction of the blade holder 23, and the contact portion is the center of the body portion 23A. It is fixed to match O.
【０００５】[0005]
【発明が解決しようとする問題点】而して、図８に示す
ように、上記電極２８Ａ，２８Ｂの先端面を切削加工す
る際には切り屑３０が発生するが、この切り屑３０の幅
は、一方のカッタ２２ー１又は２２ー２におけるその切
削刃２２Ａ，２２Ｂの半径方向の長さ（図７で示すｌ）
より長くなる。そして、切削刃２２Ａ，２２Ｂの形状が
円弧状である場合には、これを伸ばすと刃物ホルダ２３
の内径ΦＤの半径より長くなることがある。As shown in FIG. 8, chips 30 are generated when the tip surfaces of the electrodes 28A and 28B are cut, and the width of the chips 30 is large. Is the radial length of the cutting blades 22A, 22B in one cutter 22-1 or 22-2 (l shown in FIG. 7).
It will be longer. When the cutting blades 22A and 22B have a circular arc shape, the blade holder 23
May be longer than the radius of the inner diameter ΦD of.
【０００６】従って、この大きな切り屑３０が刃物ホル
ダ２３内に詰まってしまい、切削不可能な状態を招来す
ることがある。そして又、この場合には刃物ホルダ２３
内に詰まった切り屑３０を除去する手数が必要となると
ゝもに、これを除去する時に切削刃２２Ａ，２２Ｂを傷
つけてその耐用年数を短くしてしまう、更には、この傷
ついた切削刃２２Ａ，２２Ｂで再生加工を行うと、電極
２８Ａ，２８Ｂの先端面の品質が悪くなるといった諸問
題が発生する。Therefore, the large chips 30 may be clogged in the blade holder 23, resulting in an uncuttable state. Also, in this case, the blade holder 23
If it is necessary to remove the chips 30 clogged inside, the cutting blades 22A and 22B will be damaged and the service life will be shortened when the chips 30 are removed. , 22B, various problems occur such that the quality of the tip surfaces of the electrodes 28A, 28B deteriorates.
【０００７】[0007]
【問題点を解決するための手段】本発明は、上記のよう
な従来の問題点を解決するために成されたもので、切削
刃に切欠部を設けて切り屑が細く分割されるようにな
し、以って切り屑の詰まりの発生を防止するようにした
ものを提供することを目的としたものであり、その要旨
は、電極の先端面形状に適合した切削刃を有するカッタ
を回転自在な刃物ホルダ内に嵌合するとゝもに、前記切
削刃の同一半径位置にない部分に切欠部を一箇所以上形
成したことを特徴とするスポット溶接用電極先端面の成
形装置、及び電極の先端面形状に適合した切削刃を有す
る複数個のカッタを回転自在な刃物ホルダ内に放射状に
嵌合するとゝもに、前記切削刃の全体として電極の先端
面を切削できる任意部分に切欠部を形成したことを特徴
とするスポット溶接用電極先端面の成形装置にある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and a cutting blade is provided with a notch so that chips are finely divided. The purpose is to provide a tool that prevents the occurrence of clogging of chips, and the gist of this is to freely rotate a cutter that has a cutting blade that matches the shape of the tip surface of the electrode. A device for forming the tip surface of an electrode for spot welding, which is characterized in that at least one notch is formed in a portion of the cutting blade that is not located at the same radial position when fitted into a blade holder, and the tip of the electrode. When a plurality of cutters with cutting blades that match the surface shape are radially fitted in a freely rotatable blade holder, a notch is formed in the cutting blade as a whole so that the tip surface of the electrode can be cut. Spot welding characterized by In the molding device of the electrode tip surface.
【０００８】[0008]
【実施例】以下、本発明を図１乃至図４に示す実施例に
より詳細に説明する。なお、図１はスポット溶接用電極
先端面成形装置における本発明の要部の分解斜視図で、
図２は組立時の平面図、図３は同成形装置による切削時
の側面図で、図４は同切削時の平面説明図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in FIGS. In addition, FIG. 1 is an exploded perspective view of an essential part of the present invention in an electrode tip surface forming apparatus for spot welding.
2 is a plan view during assembly, FIG. 3 is a side view during cutting by the molding apparatus, and FIG. 4 is an explanatory plan view during cutting.
【０００９】図において、１は円筒状の刃物ホルダで、
前述した電極の先端面を再生する成形装置において、エ
アモータにより所定方向に回転するものであり、この刃
物ホルダ１の胴部２には直径線上の対向位置に縦穴３が
開口しているとゝもに、上記刃物ホルダ１の上下には同
軸上で切削成形する電極４Ａ，４Ｂがそれぞれ配置され
る。In the figure, 1 is a cylindrical blade holder,
In the above-described molding apparatus for regenerating the tip end surface of the electrode, it is rotated in a predetermined direction by an air motor, and the body portion 2 of the blade holder 1 has vertical holes 3 at opposite positions on the diameter line. In addition, electrodes 4A and 4B that are coaxially cut and formed are arranged above and below the cutter holder 1, respectively.
【００１０】５ー１，５ー２は上記刃物ホルダ１内に固
定される一対のカッタで、各カッタ５ー１，５ー２には
上下に切削刃６Ａ，６Ｂが夫々形成されている。そし
て、この両カッタ５ー１，５ー２は刃物ホルダ１の前記
縦穴３内から胴部２内に挿入され、両者を直径線上で付
き合わせて、その付き合わせ部が前記胴部２の中心Ｏと
一致するように固定してある。又、上記両カッタ５ー
１，５ー２の切削刃６Ａ，６Ａは電極４Ａ，４Ｂの先端
面形状に合わせた円弧形状にそれぞれ形成されており、
各切削刃６Ａ，６Ａには互いに異なる半径位置ａ，ｂに
それぞれ切欠部７，８が形成されている。Reference numerals 5-1 and 5-2 are a pair of cutters fixed in the cutter holder 1, and cutting blades 6A and 6B are formed on the upper and lower sides of the cutters 5-1 and 5-2, respectively. Then, both cutters 5-1 and 5-2 are inserted into the body portion 2 from the vertical hole 3 of the blade holder 1, and the two are abutted on a diameter line, and the abutting portion is the center of the body portion 2. It is fixed to match O. Further, the cutting blades 6A, 6A of both the cutters 5-1 and 5-2 are formed in an arc shape corresponding to the tip end surface shapes of the electrodes 4A, 4B, respectively.
Notches 7 and 8 are formed in the cutting blades 6A and 6A at different radial positions a and b, respectively.
【００１１】そこで、前記刃物ホルダ１が回転し、該刃
物ホルダ１の上下に位置する電極４Ａ，４Ｂがそれぞれ
刃物ホルダ１内に侵入して、その先端面が両カッタ５ー
１，５ー２の上下の切削刃６Ａ，６Ｂにそれぞれ接触し
て切削成形されるが、この際発生する切り屑９は切削刃
６Ａ，６Ｂに形成した前記切欠部７，８により切り屑９
ａと９ｂとに分断される。ここで、図４に示す如く、前
記両カッタ５ー１，５ー２の切欠部７，８において、電
極４Ａ，４Ｂの先端面にそれぞれリング形状の切削漏れ
部１０，１１が形成されるが、この両切欠部７，８はそ
れぞれ中心Ｏからの幅がａ，ｂとで異なるので、前記切
削漏れ部１０，１１は互いに他方の切削刃により完全に
切削される。Then, the blade holder 1 rotates, the electrodes 4A and 4B located above and below the blade holder 1 respectively invade into the blade holder 1, and the tips of the electrodes 4A and 4B are inserted into the cutters 5-1 and 5-2. Are cut and formed by contacting the upper and lower cutting blades 6A and 6B, respectively, and the chips 9 generated at this time are formed by the notches 7 and 8 formed in the cutting blades 6A and 6B.
It is divided into a and 9b. Here, as shown in FIG. 4, in the notches 7 and 8 of the cutters 5-1 and 5-2, ring-shaped cutting leakage portions 10 and 11 are formed on the tip surfaces of the electrodes 4A and 4B, respectively. Since the notches 7 and 8 have different widths a and b from the center O, the cutting leakage portions 10 and 11 are completely cut by the other cutting blades.
【００１２】なお、上記の実施例では、一対のカッタ５
ー１，５ー２を直径線上に縦列した構成のもので説明し
たが、刃物ホルダ１内の直径線上に連続する一枚のカッ
タでも、あるいは複数のカッタを放射状に配設した構成
でもよい。この場合、各カッタの切削刃に形成する切欠
部は、この切欠部による切削漏れ部が全体として他の切
削刃で切削される位置に形成すれば良く、切り屑は一層
細く分断される。In the above embodiment, the pair of cutters 5
Although the configuration in which the -1 and 5-2 are vertically arranged on the diameter line has been described, a single cutter continuous on the diameter line in the blade holder 1 or a configuration in which a plurality of cutters are radially arranged may be used. In this case, the notch formed on the cutting blade of each cutter may be formed at a position where the cutting leakage portion due to the notch is entirely cut by another cutting blade, and the chips are further divided into smaller pieces.
【００１３】[0013]
【発明の効果】本発明に係るスポット溶接用電極先端面
の成形装置は、上記のうよに、電極の先端面形状に適合
した切削刃を有するカッタを回転自在な刃物ホルダ内に
嵌合するとゝもに、前記切削刃の同一半径位置にない部
分に切欠部を一箇所以上形成した構成であるから、カッ
タの切削刃による電極先端面の切り屑は短く分断される
ことになり、刃物ホルダ内に切り屑が詰まることがな
い。また、電極の先端面形状に適合した切削刃を有する
複数個のカッタを回転自在な刃物ホルダ内に放射状に嵌
合するとゝもに、前記切削刃の全体として電極の先端面
を切削できる任意部分に切欠部を形成した構成により、
カッタの切削刃による電極先端面の切り屑は一層短く分
断されることになり、刃物ホルダの保守管理が極めて楽
になるといった効果がある。As described above, in the apparatus for forming the tip surface of the spot welding electrode according to the present invention, when the cutter having the cutting blade adapted to the shape of the tip surface of the electrode is fitted in the rotatable blade holder. Also, since the cutting blade has a structure in which one or more notches are formed in portions not located at the same radial position, the cutting chips of the electrode tip surface due to the cutting blade of the cutter will be shortly divided, and the blade holder The inside is not clogged with chips. Also, when a plurality of cutters having cutting blades that match the shape of the tip surface of the electrode are radially fitted into a rotatable tool holder, it is possible to cut the tip surface of the electrode as a whole of the cutting blade. Due to the configuration in which the notch is formed,
The chips on the tip surface of the electrode by the cutting blade of the cutter will be cut into shorter pieces, which has the effect of making maintenance of the blade holder extremely easy.
【図１】スポット溶接用電極先端面成形装置における要
部の分解斜視図である。FIG. 1 is an exploded perspective view of a main part of a spot welding electrode tip surface forming apparatus.
【図２】組立時の平面図である。FIG. 2 is a plan view during assembly.
【図３】同成形装置による切削時の側面図である。FIG. 3 is a side view during cutting by the molding apparatus.
【図４】同切削時の平面説明図である。FIG. 4 is an explanatory plan view of the same cutting.
【図５】スポット溶接用電極先端面成形装置の概略斜視
図である。FIG. 5 is a schematic perspective view of a spot welding electrode tip surface forming apparatus.
【図６】従来同装置の要部分解斜視図である。FIG. 6 is an exploded perspective view of essential parts of the conventional device.
【図７】同組立時の平面図である。FIG. 7 is a plan view of the same when assembled.
【図８】同成形装置による切削時の側面図である。FIG. 8 is a side view during cutting by the molding apparatus.
１ 刃物ホルダ ２ 同胴部 ３ 縦穴 ４Ａ 電極チップ ４Ｂ 電極チップ ５ー１ カッタ ５ー２ カッタ ６Ａ 切削刃 ６Ｂ 切削刃 ７ 切欠部 ８ 切欠部 ９ 切削屑 １０ 切削漏れ部 １１ 切削漏れ部 1 Blade Holder 2 Same Body 3 Vertical Hole 4A Electrode Tip 4B Electrode Tip 5-1 Cutter 5-2 Cutter 6A Cutting Blade 6B Cutting Blade 7 Notch 8 Notch 9 Cutting Waste 10 Cutting Leakage 11 Cutting Leakage
Claims (2)
するカッタを回転自在な刃物ホルダ内に嵌合するとゝも
に、前記切削刃の同一半径位置にない部分に切欠部を一
箇所以上形成したことを特徴とするスポット溶接用電極
先端面の成形装置。1. When a cutter having a cutting blade adapted to the shape of the tip surface of an electrode is fitted into a rotatable tool holder, the cutting blade is provided with one or more notches at positions not located at the same radial position. An apparatus for forming a tip surface of an electrode for spot welding, which is characterized by being formed.
する複数個のカッタを回転自在な刃物ホルダ内に放射状
に嵌合するとゝもに、前記切削刃の全体として電極の先
端面を切削できる任意部分に切欠部を形成したことを特
徴とするスポット溶接用電極先端面の成形装置。2. A plurality of cutters having cutting blades adapted to the shape of the tip surface of the electrode are radially fitted into a rotatable tool holder, and the tip surface of the electrode is cut as a whole of the cutting blade. A forming device for a tip surface of an electrode for spot welding, which is characterized in that a notch is formed in an arbitrary portion that can be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4131664A JPH0767627B2 (en) | 1992-04-24 | 1992-04-24 | Cutter mechanism for the tip surface of spot welding electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4131664A JPH0767627B2 (en) | 1992-04-24 | 1992-04-24 | Cutter mechanism for the tip surface of spot welding electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05305457A true JPH05305457A (en) | 1993-11-19 |
| JPH0767627B2 JPH0767627B2 (en) | 1995-07-26 |
Family
ID=15063343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4131664A Expired - Fee Related JPH0767627B2 (en) | 1992-04-24 | 1992-04-24 | Cutter mechanism for the tip surface of spot welding electrode |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0767627B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010131646A (en) * | 2008-12-05 | 2010-06-17 | Fuji Heavy Ind Ltd | Tip dresser |
| US11878357B2 (en) * | 2018-04-16 | 2024-01-23 | Kyokutoh Co., Ltd. | Tip dressing cutter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033395U (en) * | 1973-07-19 | 1975-04-10 | ||
| JPS539024U (en) * | 1977-07-19 | 1978-01-25 | ||
| JPH0297978U (en) * | 1989-01-23 | 1990-08-03 |
-
1992
- 1992-04-24 JP JP4131664A patent/JPH0767627B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5033395U (en) * | 1973-07-19 | 1975-04-10 | ||
| JPS539024U (en) * | 1977-07-19 | 1978-01-25 | ||
| JPH0297978U (en) * | 1989-01-23 | 1990-08-03 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010131646A (en) * | 2008-12-05 | 2010-06-17 | Fuji Heavy Ind Ltd | Tip dresser |
| US11878357B2 (en) * | 2018-04-16 | 2024-01-23 | Kyokutoh Co., Ltd. | Tip dressing cutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0767627B2 (en) | 1995-07-26 |
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