JP3101765B2 - Bar end material automatic welding method - Google Patents
Bar end material automatic welding methodInfo
- Publication number
- JP3101765B2 JP3101765B2 JP02153140A JP15314090A JP3101765B2 JP 3101765 B2 JP3101765 B2 JP 3101765B2 JP 02153140 A JP02153140 A JP 02153140A JP 15314090 A JP15314090 A JP 15314090A JP 3101765 B2 JP3101765 B2 JP 3101765B2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- welded
- end material
- rotation
- chucks
- 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.)
- Expired - Fee Related
Links
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】 (産業上の利用分野) この発明はNC旋盤などで所定の長さを有する規格棒材
を用いて加工する際、機構上どうしても300mm程度が旋
盤加工できずスクラップとなっていた棒端材を熔接して
所定尺の接続棒材に形成するための熔接方法に関する。[Detailed description of the invention] (Industrial application field) In the present invention, when a standard bar having a predetermined length is machined on an NC lathe or the like, the machine cannot be lathed by about 300 mm due to the mechanism and becomes scrap. The present invention relates to a welding method for welding a rod end material, which has been used, to form a connecting rod material having a predetermined length.
(従来の技術) 従来、これら棒端材を熔接するには、特異な端材であ
るだけに専用の熔接機はなく、普通一般の熔接機で熔接
していたもので、そのために熔接時に歪みが生じ易く、
さらに熔接部分に肉盛りが生じ易く、これらの弊害が熔
接された接続棒材を再度旋盤加工するに際し、大きな振
れを起こし加工製品の精度が出ないため、これら棒端材
を製品に再利用することは難しく、スクラップになるこ
とを余儀なくされていた。(Prior art) Conventionally, in order to weld these bar ends, there is no special welding machine just because it is a peculiar end material, but it is usually welded with a general welding machine. Is easy to occur,
In addition, the welded portion is liable to build up, and these harmful effects occur when turning the welded connection rod again into a lathe, causing large runout and inaccurate finished products. It was difficult and had to be scrapped.
(発明が解決しようとする課題) この発明は旋盤加工の際にできる棒端材を順次熔接し
接続させて棒材として再度旋盤加工に利用するための熔
接時に、突合わせ熔接部に起きる歪みを最小限度に抑
え、肉盛りをなくして接続することを可能にし、棒端材
の再利用での旋盤加工製品の精度を高めることを目的と
する。(Problems to be Solved by the Invention) The present invention is intended to reduce the distortion generated in the butt-welded portion at the time of welding for successively welding and connecting rod ends produced during lathe processing and reusing them as a rod for lathing. An object of the present invention is to minimize lamination, enable connection without building up, and increase the accuracy of a lathe product in the reuse of bar ends.
(課題を解決するための手段) この発明は上記目的を達成するため、同軸心上で互い
に対向して開口せるチャックを同期して回転駆動すべく
軸支して、熔接する棒端材を互いの端部が突合わせ状に
前記チャックで掴持すべくし、この両チャック間の側部
に冷却機能を備えた熔接装置を設置して、両シャフトの
高低速回転の変化に合わせて熔接装置の熔接電流値を変
化させ、冷却機能で被熔接部を冷却すべく成る熔接機を
用いて、棒端材の各接合部に面取り加工を施し、各チャ
ックで掴持して突合わせ、一回転までは略12rpmの低速
回転で且つ低熱で熔接し、その後一定時略40rpmの高速
回転で高熱熔接し、続いて一定時この高速回転で、一回
転時の低熱より低い低熱で熔接した後、一定時高速回転
で熔接装置の冷却機能で冷却エアーを噴射すべく設定し
て熔接する棒端材自動熔接方法を提案するものである。(Means for Solving the Problems) In order to achieve the above object, the present invention supports the chucks, which are opened opposite to each other on a coaxial center, synchronously and rotationally to rotate the chucks, and welds the rod ends to be welded to each other. In order to grasp the end of the welding with the chuck in abutting manner, a welding device having a cooling function is installed on a side portion between the two chucks, and the welding device of the welding device is adjusted according to changes in high and low speed rotation of both shafts. Using a welding machine that changes the welding current value and cools the welded part with the cooling function, chamfers each joint part of the rod end material, grips it with each chuck, butts it, up to one rotation Is welded at a low speed of about 12 rpm and low heat, then welded at a high speed of about 40 rpm for a fixed time, then welded at a high speed at a fixed rate, and welded at a low heat lower than the low heat of one rotation, then at a fixed time Inject cooling air with the cooling function of welding equipment at high speed rotation It proposes a rod end member automated welding method for welding a constant manner.
(作用) 相対するチャックで同軸心上に各端材を掴持して、歪
みのない直状に面取り部を突合わせることで接合部での
肉盛りを防止し、この状態を維持しながら初期の低速回
転での低熱熔接で突合わせ部が徐々に熔接温度に馴染
み、続いて高速回転で高熱熔接して確実な熔着が得ら
れ、この高温熔接部を高速回転で低熱熔接することで、
熔着部が冷却温度差に徐々に馴染むべく溶着部温度が低
下し、最終の高速回転での冷却エアーの噴射により、熔
着部を急激に温度変化させることなく冷ますことができ
るため、歪みのない接合棒材が得られる。(Effect) By gripping each piece of material coaxially with the opposing chuck and abutting the chamfered part straight without distortion, the buildup at the joint part is prevented, and the initial state is maintained while maintaining this state. The low temperature welding at the low speed rotation gradually adjusts the butting part to the welding temperature, then the high speed welding at the high temperature produces a reliable welding, and the high temperature welding is performed at a high speed to perform the low heat welding.
The temperature of the weld decreases as the weld gradually adapts to the cooling temperature difference, and the cooling air is injected at the final high-speed rotation to allow the weld to cool without a sudden change in temperature. A joining bar material free from cracks can be obtained.
(実施例) 次に、この発明に係る棒端材自動熔接方法を説明する
と、図面のうち第1〜4図はこの発明方法を実施するた
めに用いる棒端材自動熔接機を示すもので、1は自動熔
接機で、シャフト3、コレットチャック9、駆動モータ
ー18、熔接装置20から成り、例えばシャフト3を基台2
上に同軸心上でスピード制御機能を備えたモーター18を
介し同期して回転駆動すべく左右相対して軸支するにつ
いて、長さ方向に沿って熔接々続した長尺の棒材21を順
次導入させる導孔4を設けたシャフト3を、支持スリー
ブ6にブッシュ6b,6bを介して回転可能に挿嵌して、後
端3bに締付ハンドル5を装着し、先端を支持スリーブ6
前部の鍔縁6a部に臨ませて、支持スリーブ6をピロー軸
受8,8でそれぞれ相対して軸支する。(Example) Next, a description will be given of a rod end material automatic welding method according to the present invention. In the drawings, FIGS. 1 to 4 show a rod end material automatic welding machine used for carrying out the present invention method. Reference numeral 1 denotes an automatic welding machine comprising a shaft 3, a collet chuck 9, a drive motor 18, and a welding device 20.
On the coaxial center, a long bar 21 welded along the length direction is sequentially attached to the left and right sides of the shaft 18 so as to be axially supported to rotate synchronously via a motor 18 having a speed control function on the coaxial center. A shaft 3 having a guide hole 4 to be introduced is rotatably inserted into a support sleeve 6 via bushes 6b, 6b, and a fastening handle 5 is attached to a rear end 3b.
The support sleeve 6 is supported by pillow bearings 8 and 8 so as to face the front flange 6a.
コレットチャック9は、スリーブ部11aと鍔縁部11bを
有するフランジ台11に、雌螺子環13と雄螺子環14を軸心
に沿って進退可能に螺結した締付調節部材12とコレット
10のテイパー部10aに相対するテイパー部15aを設けた押
支環15を、スラストベアリング16,16を介して同軸心上
に組合わせ、これにコレット10の軸部10bを通して前記
フランジ台11のスリーブ部11aに挿通し、ナット17で一
体に緊締結合して成る(第3,4図参照)。締付調節部材1
2の雌螺子環13には締付ハンドル13aを、雄螺子環14には
廻り止ハンドル14aをそれぞれ装着して、締付ハンドル1
3aで雌螺子環13を回転させることにより、コレット10へ
の押支環15の搾り作用を加減してコレット10の掴持部を
開閉させる。このコレットチャック9はナット17部を前
記シャフト3の先端にピン17aで係合し、フランジ台11
の鍔縁部11bをシャフト3の回転でもコレット10へのナ
ット17の螺合を進退させるべく連結すると共に、シャフ
ト3を回転させることにより、コレット10からナット17
を螺解してコレット10を取外すことができ、掴持サイズ
によりコレット10を取替えるのに都合がよい。The collet chuck 9 is provided with a tightening adjustment member 12 and a collet, which are screwed to a flange base 11 having a sleeve portion 11a and a flange edge portion 11b so that a female screw ring 13 and a male screw ring 14 can advance and retreat along an axis.
A push ring 15 provided with a taper portion 15a opposite to the taper portion 10a of 10 is coaxially assembled via thrust bearings 16 and 16, and the sleeve of the flange base 11 is passed through the shaft portion 10b of the collet 10 through this. It is inserted through the portion 11a and tightly joined together with a nut 17 (see FIGS. 3 and 4). Tightening adjustment member 1
The female screw ring 13 of FIG. 2 is provided with a tightening handle 13a, and the male screw ring 14 is provided with a non-rotating handle 14a.
By rotating the female screw ring 13 in 3a, the pressing action of the pressing ring 15 on the collet 10 is adjusted to open and close the gripping portion of the collet 10. The collet chuck 9 engages a nut 17 with the tip of the shaft 3 with a pin 17a.
The collar edge 11b is connected to advance and retreat the screwing of the nut 17 to the collet 10 even when the shaft 3 rotates, and by rotating the shaft 3, the nut 17
Can be removed to remove the collet 10, which is convenient for replacing the collet 10 depending on the gripping size.
熔接装置20は後述の本熔接機を用いた熔接方法の実施
例において説明するように、熔接後、熔接された棒端材
の余熱を噴出させた冷却エアーで冷却除去すべく冷却機
能を備え、熔接電流値を変化させることができるアルゴ
ン熔接トーチからなり、左右に相対する前記コレットチ
ャック9,9間に側部から臨むように基台上に設置し、一
方のシャフト3の支持スリーブ6に装着したプーリー7
をスピード制御機能を備えたモーター18のプーリー18a
にベルト連係し、この支持スリーブ6上の別の同期プー
リー7aを、従軸19のプーリー19aを介して他方のシャフ
ト3の支持スリーブ6上の同期プーリー7aにベルトで連
係して、両シャフト3,3を同期して回転駆動させ、両シ
ャフトの高低速回転の変化に合わせて熔接装置の熔接電
流値を変化させて棒端材への熔接熱量を高低変化させ、
熔接装置の冷却機能で被熔接部を冷却すべく互いに選択
設定できるよう接続する。As described in an embodiment of a welding method using the present welding machine to be described later, the welding device 20 has a cooling function for cooling and removing the remaining heat of the welded rod ends with cooling air that has been jetted out after welding, An argon welding torch capable of changing the welding current value is installed on a base between the collet chucks 9, 9 facing left and right so as to face from the side, and attached to the support sleeve 6 of one shaft 3. Pulley 7
The motor 18 with speed control function of the pulley 18a
The other synchronous pulley 7a on the support sleeve 6 is belt-linked to the synchronous pulley 7a on the support sleeve 6 of the other shaft 3 via the pulley 19a of the slave shaft 19 so that the two shafts 3 , 3 are rotated synchronously, the welding current value of the welding device is changed according to the change of high and low speed rotation of both shafts, and the heat quantity of welding to the rod end material is changed,
Connections are made so that the parts to be welded can be selectively set to cool the parts to be welded by the cooling function of the welding device.
上記棒端材自動熔接機を用いて、この発明に係る棒端
材自動熔接方法の熔接工程を説明すると、第5図のタイ
ミングチャートに示すように、棒端材の互いの接面に面
取り部を設けてチャックに掴持させた後、 スタート、スイッチONで熔接開始、この時の電流値
は通常の40A T1後(設定1秒)、モーターの回転開始(この時の
回転数は熔接速度8mm/秒の設定で、端材外径により回転
数は異なりスイッチで選択できる) T2間、8mm/秒40Aで熔接する(端材一周の間) T2後、40rpm60Aの設定でT3間(5秒)熔接 T3後、40rpm20Aの設定でT4間(4秒)熔接 T4後、40rpm0A、エアーONでT5(5秒)冷却 〜でまず端材一周熔接する。この状態では始点と終
点で自然冷却の速度差により歪みが発生し、これを
にて全集を同一温度になるよう熔接しながら回転させる
ため、両方の端材の接合部温度が全周均等に馴染み、こ
れにより直状のセンターを出すことができ、にて高速
回転させながら熔接装置に備えた冷却機能で噴射させた
冷却エアーで均一に冷却させるため、温度差による収縮
および肉盛りがなく歪みのない接合が得られる。The welding process of the automatic rod end material welding method according to the present invention will be described using the above-mentioned automatic rod end material welding machine. As shown in the timing chart of FIG. After the chuck is held by the chuck, start, welding starts when the switch is turned on, the current value at this time is normal 40 A T1 (setting 1 second), the rotation of the motor starts (the rotation speed at this time is welding speed 8 mm At the setting of / sec, the number of revolutions differs depending on the outer diameter of the end material and can be selected with a switch.) Welding at 40mm at 8mm / sec between T2 (during one round of the end material) After T2, between T3 at 40rpm 60A setting (5sec) Welding After T3, welding at T4 at 40 rpm 20A (4 seconds) After T4, T5 (5 seconds) cooling at 40 rpm 0A, air ON-First, weld the offcuts once. In this state, distortion occurs due to the difference in the speed of natural cooling between the start point and the end point, and the entire assembly is rotated while welding so that it has the same temperature. This makes it possible to take out a straight center, and to uniformly cool with cooling air injected by the cooling function provided in the welding device while rotating at high speed, so there is no shrinkage due to temperature difference and no build-up No bonding is obtained.
(発明の効果) この発明は上記のように、初期の熔接過程で接合部分
に生じた歪みは、急速回転での高低の段階的温度で加熱
熔接することで接合部分が速やかに均一温度となって矯
正され、熔接加熱の終えた急速回転の状態で接合部分を
冷却装置で冷却することにより、急激な温度変化を回避
した均一な冷却が得られて、これまで使い物にならなか
った旋盤加工によって発生する半端な棒端材を、再度旋
盤加工の精度に耐え得る歪み(振れ)のない長尺の接合
棒材に熔接することが容易となった。(Effects of the Invention) As described above, according to the present invention, the distortion generated in the joining portion in the initial welding process is such that the joining portion quickly becomes uniform by heating and welding at high and low stepwise temperatures by rapid rotation. By cooling the joint with a cooling device in a state of rapid rotation after welding and heating, uniform cooling avoiding sudden temperature changes can be obtained, and by lathe processing that has become unusable until now It has become easy to weld the generated incomplete rod end material to a long joining rod material having no distortion (runout) that can withstand the accuracy of lathing again.
これにより、接合熔接持に歪みが生じることで、すべ
てスクラップとして廃棄されていた棒端材を有効に利用
することができて経済上有益であると共に、歪み(振
れ)のない長尺接合棒材を安価に提供することができる
等の効果を奏する。As a result, distortion occurs in the joining and welding, so that the rod end material, all of which has been discarded as scrap, can be effectively used, which is economically beneficial, and is a long joining rod material without distortion (run-out). Can be provided at low cost.
第1図はこの発明の棒端材自動熔接方法を実施するため
に用いる棒端材自動熔接機の一部切欠き正面図、第2図
は同上の側面図、第3図は同上要部を一部縦断して示す
正面図、第4図は同上チャック部の分解斜視図、第5図
はこの発明の棒端材自動熔接方法による熔接工程のタイ
ミングチャートである。FIG. 1 is a partially cutaway front view of an automatic rod end material welding machine used for carrying out the automatic rod end material welding method of the present invention, FIG. 2 is a side view of the same, and FIG. FIG. 4 is an exploded perspective view of the chuck part, and FIG. 5 is a timing chart of a welding process by the rod end material automatic welding method according to the present invention.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭59−16681(JP,A) (58)調査した分野(Int.Cl.7,DB名) B23K 9/00,37/00,37/04 ────────────────────────────────────────────────── (5) References JP-A-59-16681 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) B23K 9/00, 37/00, 37 / 04
Claims (1)
クを同期して回転駆動すべく軸支して、熔接する棒端材
を互いの端部が突合わせ状に前記チャックで掴持すべく
し、この両チャック間の側部に冷却機能を備えた熔接装
置を設置して、両シャフトの高低速回転の変化に合わせ
て熔接装置の熔接電流値を変化させ、冷却機能で被熔接
部を冷却すべく成る熔接機を用いて、棒端材の各接合部
に面取り加工を施し、各チャックで掴持して突合わせ、
一回転までは略12rpmの低速回転で且つ低熱で熔接し、
その後一定時略40rpmの高速回転で高熱熔接し、続いて
一定時この高速回転で、一回転時の低熱より低い低熱で
熔接した後、一定時高速回転で熔接装置の冷却機能で冷
却エアーを噴射すべく設定して熔接する棒端材自動熔接
方法。The chucks to be opened opposite to each other on a coaxial center are axially supported so as to be synchronously driven to rotate, and the rod ends to be welded should be gripped by the chucks with their ends abutting each other. Comb, a welding device with a cooling function is installed on the side between the two chucks, and the welding current value of the welding device is changed according to the change of high and low speed rotation of both shafts, and the welded part is cooled by the cooling function. Using a welding machine to be cooled, chamfering is applied to each joint of the bar ends, gripped by each chuck, and butted.
Weld at a low speed of about 12 rpm and low heat until one rotation,
Thereafter, high-temperature welding is performed at a high speed of approximately 40 rpm for a fixed time, and then welding is performed at a high speed at a constant speed and low heat lower than the low heat of one rotation. Automatic welding method of rod end material that is set and welded as required.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02153140A JP3101765B2 (en) | 1990-06-11 | 1990-06-11 | Bar end material automatic welding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP02153140A JP3101765B2 (en) | 1990-06-11 | 1990-06-11 | Bar end material automatic welding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0446698A JPH0446698A (en) | 1992-02-17 |
JP3101765B2 true JP3101765B2 (en) | 2000-10-23 |
Family
ID=15555888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP02153140A Expired - Fee Related JP3101765B2 (en) | 1990-06-11 | 1990-06-11 | Bar end material automatic welding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3101765B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006051522A (en) * | 2004-08-11 | 2006-02-23 | Okudo Kinzoku:Kk | Structure of welded joint of h-section steel |
JP5389575B2 (en) * | 2009-09-07 | 2014-01-15 | 株式会社大阪チタニウムテクノロジーズ | Consumable electrode manufacturing method |
-
1990
- 1990-06-11 JP JP02153140A patent/JP3101765B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0446698A (en) | 1992-02-17 |
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