JP3018641U - Automatic gas pressure welding device - Google Patents
Automatic gas pressure welding deviceInfo
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- JP3018641U JP3018641U JP1995006070U JP607095U JP3018641U JP 3018641 U JP3018641 U JP 3018641U JP 1995006070 U JP1995006070 U JP 1995006070U JP 607095 U JP607095 U JP 607095U JP 3018641 U JP3018641 U JP 3018641U
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Abstract
(57)【要約】
【目的】 本考案は圧接作業が極めて単純化され、且つ
圧接作業時間を著しく短縮させた高能率なものとなると
共に十分な強度のものが得られる。また圧接作業の良否
が高精度で判断されるので、超音波探傷検査の省略が可
能となる。更に圧接作業不良が作業後即座に判断できる
ため、圧接作業不良の手直しが即座に行え、手直しの効
率が極めて良いものとなる。
【構成】 従来の自動ガス圧接装置に於いて、制御装置
４には鋼材の径に応じた適正条件を設定するデ−タ−選
択部46と、デ−タ−記憶部47と、圧接作業の良否を判断
する判定部44とを少なくとも備え、且つ鋼材の圧接作業
が不良と判断された際に警報を出す警報器５を具備した
ものと成す。
(57) [Summary] [Objective] The present invention makes the pressure welding work extremely simple, and significantly shortens the pressure welding work time to achieve high efficiency and sufficient strength. Further, since the quality of the pressure welding work is highly accurately determined, the ultrasonic flaw inspection can be omitted. Further, since the defective press working can be judged immediately after the work, the defective press working can be repaired immediately, and the efficiency of repair can be extremely improved. [Constitution] In the conventional automatic gas pressure welding apparatus, the control unit 4 has a data selecting section 46 for setting appropriate conditions according to the diameter of the steel material, a data storage section 47, and a pressure welding operation. At least a judging unit 44 for judging acceptability is provided, and an alarm device 5 for issuing an alarm when the pressure welding work of the steel material is judged to be defective is provided.
Description
【０００１】[0001]
本考案は建築現場で２本の鉄筋用線材や鋼棒等の鋼材を接合するための自動ガ ス圧接装置に関する。 The present invention relates to an automatic gas pressure welding device for joining two steel rod wires or steel materials such as steel rods at a construction site.
【０００２】[0002]
従来の自動ガス圧接装置としては、２本の鋼材を把持する圧接器と、その鋼材 を加圧する加圧器と、前記鋼材の接合部を加熱する加熱装置と、前記加圧器や加 熱装置の動作やガス供給を設定した圧接条件に従って制御する制御装置とから構 成されたものが用いられる。これを用いてガス圧接する場合は、一般に、先ず前 作業に於いて２本の鋼材を加熱しながら加圧し、２本の鋼材の接合端面を隙間な く密着させていた。その後、本作業に於いては前記鋼材の接合部（焼幅）をガス バ−ナで左右に往復移動させて前記焼幅を均一に加熱させながら加圧し、その接 合部にコブ状の膨張部を形成して２本の鋼材を接合するものであった。しかしな がら前記ガス圧接は接合部の膨張部に於いて十分な強度が得られるようにするこ とが必要であり、このため、ガス圧接に使用される加圧パタ−ンとしては、図５ に示す（ａ）のような二段アプセット法，（ｂ）のような三段アプセット法，（ ｃ）のように徐々に上限圧まで加圧する変則二段アプセット法などが良く知られ ている。 As a conventional automatic gas pressure welding device, a pressure welding device that holds two steel materials, a pressurizing device that pressurizes the steel materials, a heating device that heats the joint portion of the steel materials, and the operation of the pressurizing device and the heating device. A control device for controlling the gas supply and the gas supply according to the set pressure contact conditions is used. In the case of gas pressure welding using this, generally, in the previous work, the two steel materials were heated and pressed so that the joint end faces of the two steel materials were adhered to each other without any gap. After that, in this work, the joint (burning width) of the steel material is reciprocally moved to the left and right by a gas burner to uniformly heat the burning width and pressurize the joint, and a hump-shaped expansion is applied to the joint. A part was formed and two steel materials were joined. However, it is necessary for the gas pressure welding to obtain sufficient strength in the expanded portion of the joint. Therefore, as a pressure pattern used for gas pressure welding, as shown in FIG. The two-step upset method shown in (a), the three-step upset method shown in (b), and the irregular two-step upset method of gradually increasing the pressure to the upper limit pressure as shown in (c) are well known.
【０００３】 また近年に於いては特開昭５４−１４５３４４号や本考案者が提案した特開昭 ５７−２５２９４号などの自動ガス圧接装置がある。この特開昭５４−１４５３ ４４号の構造は、支持器及び油圧装置を備えた鋼材の支持加圧機構部と、ガスバ −ナ，バ−ナ移動装置，バルブユニットを備えた鋼材の加熱機構部と、前記油圧 装置，バ−ナ移動装置，バルブユニットをそれぞれ制御する制御機構部とを備え 、且つ前記油圧装置には圧力検知手段とその設定圧到達のカウント手段を備える と共に、前記支持器には可動チャックの移動量検知手段を備え、前記移動量検知 手段，圧力検知手段，カウント手段からの確信号に基づいて、前記ガスバ−ナの 移動，停止動作と火炎の調節，遮断動作及び前記油圧装置の作動，停止動作がそ れぞれ制御されるように構成されたものであり、圧力及び時間の制御を主体とし 、圧接作業の進行と共に位置の移動を可能とする可動チャックの前記移動量に基 づく制御を加味したものであった。In recent years, there are automatic gas pressure welding devices such as JP-A-54-145344 and JP-A-57-25294 proposed by the present inventor. The structure of Japanese Patent Application Laid-Open No. 54-145344 has a supporting and pressurizing mechanism for steel material provided with a support and a hydraulic device, and a heating mechanism for steel material provided with a gas burner, a burner moving device and a valve unit. And a control mechanism section for controlling the hydraulic device, the burner moving device, and the valve unit, respectively, and the hydraulic device is provided with a pressure detecting means and a counting means for reaching the set pressure, and the supporting device is provided. Is equipped with means for detecting the amount of movement of the movable chuck, and based on a confirmation signal from the means for detecting the amount of movement, the means for detecting pressure, the means for counting, movement of the gas burner, stopping operation, flame adjustment, shut-off operation and hydraulic pressure. It is configured so that the operation and stop operation of the device can be controlled respectively, and is mainly for the control of pressure and time, and is in front of the movable chuck that can move the position as the pressure welding work progresses. It was those obtained by adding a control that is based on the movement amount.
【０００４】 また特開昭５７−２５２９４号の構造は、２本の鋼材を加圧する加圧手段と、 鋼材の接合部を加熱する加熱手段と、前記加圧手段の加圧力を所定の上限圧力と 下限圧力との間に制御する圧力制御手段と、前記加圧手段の加圧作動時間を積算 する加圧作業時間積算手段と、その加圧作業時間積算手段の積算時間が所定時間 を達した時に作業の終了停止を知らせる作業停止報知手段を備え、前作業終了後 本作業の段階で前記圧力制御手段及び加圧作業時間積算手段を作動させ、加圧手 段の加圧作業時間を積算する構成としたものである。尚、加熱中に火炎に異状が あった場合やコブ状の膨張部の外観検査不良或い超音波探傷検査で不合格となっ たものは、接合部が切り取られて再度圧接作業を行わなければならなかった。Further, the structure of Japanese Patent Laid-Open No. 57-25294 has a pressurizing means for pressurizing two steel materials, a heating means for heating a joint portion of the steel materials, and a pressurizing force of the pressurizing means to a predetermined upper limit pressure. Pressure control means for controlling between the pressure and the lower limit pressure, a pressurizing work time integrating means for integrating the pressurizing operation time of the pressurizing means, and an integrating time of the pressurizing work time integrating means has reached a predetermined time. Occasionally, a work stop notification means for notifying the end of the work is provided, and after the completion of the previous work, the pressure control means and the pressurizing work time integrating means are operated at the stage of the main work to integrate the pressurizing work time of the pressurizing step. It is configured. If there is any irregularity in the flame during heating, or if the appearance of the bump-shaped expanded part is inferior or if it fails the ultrasonic flaw inspection, the joint must be cut off and the pressure welding work must be performed again. did not become.
【０００５】[0005]
しかしながら、前記自動ガス圧接装置による加圧パタ−ンは、二段アプセット 法，三段アプセット法，徐々に上限圧まで加圧する変則二段アプセット法或いは 特開昭５４−１４５３４４号や特開昭５７−２５２９４号の変則アプセット法な どがあるが、これらは上限圧を加えその加圧力の降下具合で、鋼材の溶融状態を 判断していた。またこの方法では安定した品質保証がしにくく、接合部の良否の 判断が外観検査や超音波探傷検査により不合格と判断される迄には、時間が掛っ ており、即座に手直し作業に移行出来ない等の問題点があった。 However, the pressurizing pattern by the automatic gas pressure welding device is a two-step upset method, a three-step upset method, an irregular two-step upset method of gradually increasing the pressure to the upper limit pressure, or JP-A-54-145344 and JP-A-57.57. There are anomalous upset methods such as -25294, but these have determined the molten state of steel materials by applying the upper limit pressure and decreasing the applied pressure. In addition, it is difficult to guarantee stable quality with this method, and it takes time before the quality of the joint is judged to be unacceptable by appearance inspection or ultrasonic flaw detection, and it is possible to immediately proceed to rework work. There were problems such as not being.
【０００６】 本考案は圧接作業が高能率に行え、且つその圧接作業の良否が高精度で判断さ れると共に圧接作業不良の手直し作業が即座に行える自動ガス圧接装置を提供す るにある。An object of the present invention is to provide an automatic gas pressure welding apparatus that can perform the pressure welding work with high efficiency, can judge the quality of the pressure welding work with high accuracy, and can immediately perform the repair work of the defective pressure welding work.
【０００７】[0007]
【課題を解決するための手段】 上記問題点を解決するために本考案は成されたものであり、つまり、従来の圧 接器，加圧器，加熱装置，制御装置を備えた自動ガス圧接装置に於いて、前記制 御装置には鋼材の径に応じた適正条件を設定するデ−タ−選択部と、デ−タ−記 憶部と、圧接作業の良否を判断する判定部とを少なくとも備え、且つ、前記鋼材 の圧接作業が不良と判断された際に警報を出す警報器を具備したものと成す。特 に制御装置としては、加圧時間検出手段や圧縮完了検出手段などからのデ−タ− によりその各作業時間を計測する時計部と、圧接作業全体を制御する制御演算部 と、前記時計部から入力される時間集計を行う時間集計部と、この時間集計部に よって求められた加圧時間が基準範囲値に入っているか否かを比較判断する判定 部と、前記鋼材の径に応じた適正条件を設定するデ−タ−選択部と、従来の前作 業を省略して直ぐに本作業に入ると共に前記加圧力を所定の上限圧で維持出来る デ−タ−が入力されたデ−タ−記憶部とから構成させると良い。Means for Solving the Problems The present invention has been made in order to solve the above problems, that is, an automatic gas pressure welding device including a conventional pressure welding device, a pressurizing device, a heating device, and a control device. In the control device, at least a data selecting section for setting appropriate conditions according to the diameter of the steel material, a data storing section, and a judging section for judging the quality of the pressure welding work are provided. And an alarm device for issuing an alarm when it is determined that the pressure welding work of the steel material is defective. In particular, as the control device, a clock unit that measures each work time by data from the pressurization time detection unit and compression completion detection unit, a control calculation unit that controls the entire pressure welding work, and the clock unit. According to the diameter of the steel material, the time counting section that performs time counting from the time counting section, the judgment section that compares and determines whether the pressurizing time obtained by this time counting section is within the standard range The data selection section for setting the appropriate conditions and the data for inputting the data which can immediately start the work without the conventional pre-operation and maintain the pressing force at a predetermined upper limit pressure. It may be configured with a storage unit.
【０００８】[0008]
次に本考案の使用方法について説明する。先ず２本の鋼材（Ｗ）を加圧器（２ ）で把持する。そしてバ−ナ繰出装置（32）でガスバ−ナ（31）を繰出して接合 位置（幅焼位置）にセットし、電磁弁（33b）を開き、加熱装置（３）のガスバ −ナ（31）に点火して火炎の調節確認を行う。その後、加熱作業に移行する。こ の時、前記ガスバ−ナ（31）の繰出しは、予め点火して火炎の調節確認を行った 後に、鋼材（Ｗ）の接合位置へ繰出して加熱作業に移行させても良い。また前記 ガスバ−ナ（31）に本考案者が提案した図３に示す構造のものを用いると、焼幅 全体が一度に加熱出来るが、従来のリングバ−ナを用いる場合には、従来同様に 前記焼幅間で左右に往復移動させながら鋼材（Ｗ）の加熱作業を行っても良い。 所定時間加熱されると、鋼材（Ｗ）の接合部が赤熱する。尚、この時の加熱時間 のスタ−トを検出する際は、バ−ナ繰出装置（32）が作動されると同時にバ−ナ 繰出用リミットスイッチ（33a）が働く時点、或いは電磁弁（33b）が開かれた時 点とする。 Next, a method of using the present invention will be described. First, the two steel materials (W) are gripped by the pressurizer (2). Then, the gas burner (31) is fed out by the burner feeding device (32) and set at the joining position (panning position), the solenoid valve (33b) is opened, and the gas burner (31) of the heating device (3) is opened. Ignite and check the flame adjustment. Then, the heating operation is started. At this time, the gas burner (31) may be fed out to the joining position of the steel material (W) and transferred to the heating work after ignition and confirmation of flame adjustment are performed in advance. Further, if the gas burner (31) having the structure shown in FIG. 3 proposed by the present inventor is used, the entire burning width can be heated at one time. However, when the conventional ring burner is used, The steel material (W) may be heated while reciprocating right and left between the burning widths. When heated for a predetermined time, the joint portion of the steel material (W) becomes red hot. When the start of the heating time at this time is detected, the burner feeding device (32) is actuated and the burner feeding limit switch (33a) is activated at the same time, or the solenoid valve (33b) is operated. ) Was opened.
【０００９】 加熱時間検出手段（33）からの入力デ−タ−が時計部（41）を経由して時間集 計部（43）で時間集計され、その集計時間が所定時間に達すると、その旨が制御 演算部（42）に入る。そして制御演算部（42）から加圧器（２）へ作動指令を発 す。すると、油圧ラム（21）が作動し、鋼材（Ｗ）には上限圧が一気に加わる。 その後、所定の縮み代に達すると、接合部がコブ状に膨らみ、２本の鋼材（Ｗ） は接合するのである。また同時に前記油圧ラム（21）は所定の縮み代に達した時 に停止し、加圧作業を終了する。そして加圧時間のデ−タ−は制御装置（４）へ 送られる。尚、この時点で電磁弁（33b）を閉じてガスバ−ナ（31）が消される と共にガスバ−ナ（31）はバ−ナ繰出装置（32）によって元の位置に戻り、加熱 作業も終了する。次に前記加圧時間検出について説明する。先ず油圧ラム（21） が作動し始めると、流量計やオイル吐出量検出器である加圧時間検出手段（23） で加圧状態を検出した時点が加圧作業のスタ−トとして時計部（41）に入力され 、制御演算部（42）を介して時間集計部（43）によってカウントが開始される。 その後、鋼材（Ｗ）が所定の縮み代に圧縮されると、圧縮完了検出手段（24）で ある縮み代用リミットスイッチが働くと共に加圧器（２）の加圧作業を終了させ た旨を時計部（41）に出力デ−タ−として送る。そして、このデ−タ−は制御演 算部（42）を介して時間集計部（43）によってカウントが停止され、且つそのカ ウント値が加圧時間となるのである。この値が制御演算部（42）に出力される。 この時、前記加圧時間検出手段（23）によって加圧作業の終了を検出させること も可能である。尚、本考案品を使用して行う加熱作業は、従来の如き２本の鋼材 （Ｗ）を所定時間加熱して接合面を隙間なく密着させる前作業が不要となる。又 、前記鋼材（Ｗ）の加圧作業が、従来のような上限圧と下限圧を繰返して加える ことがなく、単純な作業となり、圧接作業が高能率に行えるものとなる。The input data from the heating time detection means (33) is time-counted by the time counting section (43) via the clock section (41), and when the counting time reaches a predetermined time, The effect enters the control calculation section (42). Then, the control calculation unit (42) issues an operation command to the pressurizer (2). Then, the hydraulic ram (21) is activated, and the upper limit pressure is applied to the steel material (W) at once. After that, when a predetermined shrinkage margin is reached, the joint portion bulges like a bump and the two steel materials (W) are joined. At the same time, the hydraulic ram (21) is stopped when the predetermined shrinkage margin is reached, and the pressurizing work is completed. The pressurization time data is sent to the control device (4). At this point, the solenoid valve (33b) is closed to turn off the gas burner (31), the gas burner (31) is returned to its original position by the burner feeding device (32), and the heating work is completed. . Next, the pressurization time detection will be described. First, when the hydraulic ram (21) starts to operate, the time when the pressurizing state is detected by the pressurizing time detecting means (23) such as a flow meter or an oil discharge amount detector is the start of the pressurizing work, and the timepiece ( It is input to 41), and the time counting section (43) starts counting through the control calculation section (42). After that, when the steel material (W) is compressed to a predetermined shrinkage allowance, the shrinkage allowance limit switch, which is the compression completion detecting means (24), operates and the fact that the pressurizing operation of the pressurizer (2) has ended is notified. It is sent to (41) as output data. Then, the count of this data is stopped by the time counting section (43) via the control calculating section (42), and the count value becomes the pressurizing time. This value is output to the control calculation section (42). At this time, it is possible to detect the end of the pressurizing work by the pressurizing time detecting means (23). In addition, the heating work performed using the product of the present invention does not require the prior work of heating two steel materials (W) for a predetermined time and closely adhering the joint surfaces without any gap. Further, the pressurizing work of the steel material (W) is simple work without repeatedly applying the upper limit pressure and the lower limit pressure as in the conventional case, and the press contacting work can be performed with high efficiency.
【００１０】 次に圧接作業の良否を判断する作用について説明する。予め加圧時間検出手段 （23）と圧縮完了検出手段（24）とからの入力デ−タ−が時計部（41）を経由し て時間集計部（43）で加圧時間が検出され、このデ−タ−を制御演算部（42）に 入力し、更に判定部（44）で加圧時間が基準範囲値（45）と対比されて、その結 果の良否を制御演算部（42）に送る。該制御演算部（42）に於いて、判定部（44 ）が良と判断したデ−タ−が入力された時には、圧接作業はこれで終了する。一 方、前記判定部（44）からの入力デ−タ−が不良と判断された時には、直ちに警 報器（５）へ作動指令を発し、その旨を作業者に表示又は警報音にて圧接作業が 不良であることを知らせる。この知らせによって作業者は、接合部を切り取って 再度圧接作業を行う。又、作業者は接合部のコブ形状をチェックして外観検査を 行い、不良の場合には従来と同様に手直し作業を行うのである。Next, the operation of determining the quality of the press work will be described. The input data from the pressurizing time detecting means (23) and the compression completion detecting means (24) is previously detected by the time counting section (43) via the clock section (41). The data is input to the control calculation unit (42), and the pressurization time is compared with the reference range value (45) by the determination unit (44), and the quality of the result is notified to the control calculation unit (42). send. In the control calculation section (42), when the data judged to be good by the judgment section (44) is input, the pressure welding work is finished. On the other hand, when the input data from the judging section (44) is judged to be defective, an operation command is immediately issued to the alarm device (5) and a message to that effect is displayed to the operator or an alarm sound is pressed. Notify that the work is bad. By this notification, the worker cuts off the joint and performs the pressure welding work again. In addition, the operator checks the bump shape of the joint to perform an appearance inspection, and if the defect is found, the repair work is performed as in the conventional case.
【００１１】[0011]
以下、本考案の実施例を図面に基づき説明する。（１）は２本の鋼材（Ｗ）を 把持する圧接器である。（２）は鋼材（Ｗ）の軸方向に加圧する加圧器であり、 この加圧器（２）には、油圧ラム（21）と、油圧ユニット（22）と、加圧作業時 間を検出する加圧時間検出手段（23）と、加圧作業終了を検出する圧縮完了検出 手段（24）とがある。また前記加圧時間検出手段（23）には油圧ユニット（22） から吐出されるオイルの流量を測定する流量計又はオイル吐出量検出器を用い、 前記圧縮完了検出手段（24）には縮み代用リミットスイッチ又はポテンションメ −タ−を用いる。（３）は鋼材（Ｗ）の接合部を加熱する加熱装置であり、該加 熱装置（３）にはガスバ−ナ（31）と、そのガスバ−ナ（31）を繰出すバ−ナ繰 出装置（32）と、加熱時間を検出する加熱時間検出手段（33）とが少なくとも具 備されている。又、前記加熱時間検出手段（33）には、バ−ナ繰出装置（32）に 取付けたバ−ナ繰出用リミットスイッチ（33a）又は電磁弁（33b）を用いる。更 に前記ガスバ−ナ（31）としては、本考案者が提案した特願平６−３２３８１２ 号や特願平６−３３１５５０号のもの、つまり環体（31a）の内周側面に多数の ノズル（31b）を中心に向けて等間隔に設けると共にそのノズル（31b）を鋼材（ Ｗ）の軸方向に対しても多数列に配設させ、且つ各ノズル（31b）の周囲には断 熱材（31c）或いは冷却手段を設けて、鋼材（Ｗ）の焼幅全体が一度に加熱でき る構造のものを用いる（図３参照）。 An embodiment of the present invention will be described below with reference to the drawings. (1) is a pressure contactor for gripping two steel materials (W). (2) is a pressurizer that pressurizes the steel material (W) in the axial direction. The pressurizer (2) detects the hydraulic ram (21), the hydraulic unit (22), and the pressurizing time. There are a pressurizing time detecting means (23) and a compression completion detecting means (24) for detecting the end of pressurizing work. Further, a flow meter or an oil discharge amount detector for measuring the flow rate of oil discharged from the hydraulic unit (22) is used as the pressurizing time detecting means (23), and a compression substitute is used as the compression completion detecting means (24). Use a limit switch or potentiometer. (3) is a heating device for heating the joint portion of the steel material (W). The heating device (3) has a gas burner (31) and a burner feeding device for feeding the gas burner (31). At least an output device (32) and heating time detecting means (33) for detecting the heating time are provided. As the heating time detecting means (33), a burner feeding limit switch (33a) or a solenoid valve (33b) attached to the burner feeding device (32) is used. Further, as the gas burner (31), those of Japanese Patent Application No. 6-323812 and Japanese Patent Application No. 6-331550 proposed by the present inventor, that is, a large number of nozzles on the inner peripheral side surface of the ring body (31a). The nozzles (31b) are arranged in multiple rows in the axial direction of the steel material (W), and the heat insulating material is provided around each nozzle (31b). (31c) Alternatively, a cooling means is provided so that the entire burned width of the steel material (W) can be heated at one time (see FIG. 3).
【００１２】 （４）は加圧器（２）や加熱装置（３）の動作やガス供給を設定した圧接条件 に従って制御する機能及び、圧接作業の良否を判断する判定機能を有した制御装 置である。この制御装置（４）は加熱時間，加圧時間，アセチレンガスボンベ（ ７）や酸素ガスボンベ（８）から供給されるガスの供給時間などの各時間を計測 するための時計部（41）と、圧接作業全体を制御する制御演算部（42）と、前記 時計部（41）の時間集計を行う時間集計部（43）と、該時間集計部（43）によっ て求められた加圧時間を基準範囲値（45）に入っているか否かを対比し判断する 判定部（44）と、鋼材(Ｗ)の径に応じた適正条件を設定するデ−タ−選択部（46 ）と、前作業を省略して直ぐに本作業に入ると共に前記加圧力を所定の上限圧で 維持出来るデ−タ−が入力されたデ−タ−記憶部（47）とから構成している。ま た前記制御装置（４）は加圧時間検出手段（23）や圧縮完了検出手段（24）と接 続され、このデ−タ−を基に圧接作業の良否が判断されるのである。（５）は鋼 材(Ｗ)の圧接作業が不良と判断された旨を警報する警報器であり、該警報器（５ ）にはランプやブザ−などを用いるが、目や耳で確認出来るものであれば他のも のでも良い。（６）は制御装置（４）と接続するデ−タ−プリントアウト可能な プリンタ−である。(4) is a control device having a function of controlling the operation of the pressurizer (2) and the heating device (3) and gas supply according to the set pressure contact condition, and a determination function of determining the quality of the pressure contact work. is there. This control device (4) has a clock unit (41) for measuring heating time, pressurizing time, supply time of gas supplied from acetylene gas cylinder (7) and oxygen gas cylinder (8), and pressure contact. The control calculation unit (42) for controlling the whole work, the time counting unit (43) for counting the time of the clock unit (41), and the pressurization time obtained by the time counting unit (43) Judgment part (44) for comparing and judging whether it is within the range value (45), data selection part (46) for setting proper conditions according to the diameter of the steel material (W), and pre-work It is composed of a data storage section (47) to which data for inputting data capable of maintaining the above-mentioned pressurizing force at a predetermined upper limit pressure is entered while the operation is immediately omitted. Further, the control device (4) is connected to the pressurizing time detecting means (23) and the compression completion detecting means (24), and the quality of the press-contacting work is judged based on this data. (5) is an alarm device that warns that the pressure welding work of the steel material (W) is judged to be defective. A lamp or buzzer is used for the alarm device (5), which can be confirmed by eyes or ears. Other items may be used as long as they are used. (6) is a printer capable of printing data, which is connected to the control device (4).
【００１３】 次に本考案品を用い、直径25mmで長さ300mmの鋼材(Ｗ)を２本用意し、30mm圧 縮して圧接作業が行われる場合について詳細に説明する。予めガスバ−ナ（31） として32個口の火口で且つ火口内径80mmのものを用意しておく。先ず鋼材（Ｗ） を図１に示すように加圧器（２）で把持する。そしてバ−ナ繰出装置（32）でガ スバ−ナ（31）を繰出して接合位置にセットし、電磁弁（33b）を開き、一定流 量の供給ガスで加熱作業を行う。また加圧作業開始前の加熱時間は30秒とする。 30秒間加熱させると、２本の鋼材（Ｗ）の接合部は黄色に熱せられた状態となる 。そして加熱時間検出手段（33）から所定時間が経過したことを、時計部（41） を介して制御演算部（42）に入力すると、制御演算部（42）は加圧器（２）に作 動指令を出し、油圧ラム（21）が作動する。該油圧ラム（21）の作動に伴い、接 合部が赤熱されて軟化した鋼材（Ｗ）に、上限圧である圧接設定加圧力300Kg/cm 2 を一気に最大値として加える。そして所定の縮み代30mmに達すると接合部がコ ブ状に膨らんで、２本の鋼材（Ｗ）が接合される。尚、加圧作業終了と同時に、 電磁弁（33b）を閉じてガスバ−ナ（31）が消され、且つガスバ−ナ（31）をバ −ナ繰出装置（32）によって元の位置に戻し、加熱作業も終了する。Next, a case in which two steel materials (W) having a diameter of 25 mm and a length of 300 mm are prepared using the product of the present invention and compressed by 30 mm to perform the pressure welding work will be described in detail. As the gas burner (31), prepare 32 craters with a crater inner diameter of 80 mm. First, the steel material (W) is held by the pressurizer (2) as shown in FIG. Then, the gas burner (31) is fed by the burner feeding device (32) and set at the joining position, the solenoid valve (33b) is opened, and heating work is performed with a constant flow rate of the supply gas. The heating time before starting the pressing work is 30 seconds. When heated for 30 seconds, the joint between the two steel materials (W) is heated to yellow. Then, when the fact that a predetermined time has passed from the heating time detecting means (33) is input to the control calculation section (42) via the clock section (41), the control calculation section (42) operates the pressurizer (2). A command is issued and the hydraulic ram (21) is activated. With the operation of the hydraulic ram (21), the welded part was red-heated and softened to soften the steel material (W), which is the upper limit pressure of the contact pressure setting pressure 300 Kg / cm. 2 Is added all at once as the maximum value. Then, when the predetermined shrinkage margin of 30 mm is reached, the joint bulges like a bump and the two steel materials (W) are joined. Simultaneously with the completion of the pressurizing work, the solenoid valve (33b) is closed to turn off the gas burner (31), and the gas burner (31) is returned to its original position by the burner feeding device (32). The heating work is also completed.
【００１４】 この時の加圧時間検出は、スタ−ト時点が流量計（23）で検知された時点であ り、また終了時点が縮み代用リミットスイッチ（24）を作動させた時点として検 出する。このデ−タ−は時間集計部（43）で加圧時間がカウントされると共に加 圧時間は22秒として検出された。検出された加圧時間デ−タ−は判定部（44）に 於いて、基準範囲値（45）が13秒〜34秒の間に入っているか否を判断し、その結 果が良であったことを制御演算部（42）に送り、圧接作業が終了するのである。 尚、前記結果が不良であった場合には制御演算部（42）から警報器（５）へ作動 指令を発し、その旨を作業者に知らせ、接合部の圧接作業が再度行われる。次に 本考案品の判定部（44）が良と判断した鋼材(Ｗ)を３０本用意し、コブ状の膨張 部の外観検査と超音波探傷検査を行った結果、不合格なものはなく、高精度に圧 接作業の良否判断が可能となったことを確認することが出来た。The pressurization time at this time is detected when the start time is the time when it is detected by the flow meter (23) and the end time is the time when the contraction substitute limit switch (24) is activated. To do. The time counting section (43) of this data counted the pressurizing time and detected the pressurizing time as 22 seconds. The detected pressurizing time data is judged by the judging section (44) whether the reference range value (45) is within the range of 13 seconds to 34 seconds, and the result is good. This is sent to the control calculation section (42), and the pressure welding work ends. If the result is not good, the control calculation unit (42) issues an operation command to the alarm device (5), informs the operator of that fact, and the welding operation of the joint portion is performed again. Next, 30 steel materials (W) judged to be good by the judgment part (44) of the present invention product were prepared, and the appearance inspection and ultrasonic flaw inspection of the bump-shaped expansion part were performed. It was confirmed that it was possible to judge the quality of the pressing work with high accuracy.
【００１５】 図４は前記ガスバ−ナ（31）を用いた加熱時間と加圧時間の関係が示された実 験デ−タ−図であり、この図について説明する。先ず実験条件として、直径25mm ，長さ300mmの鋼材(Ｗ)を多数本用意する。そして各鋼材(Ｗ)が加圧作業開始前 の加熱時間をそれぞれ20秒間，30秒間，40秒間と区別して加熱した後、各前記加 熱時間毎の鋼材(Ｗ)に加圧力300Kg/cm2を加えて縮み代30mmに達する迄の加圧時 間を測定した。この結果、前記20秒間加熱させた後に加圧したものは、接合部が 赤黒い状態で加圧され、その加圧時間は34秒間であった。また前記30秒間加熱さ せた後に加圧したものは加圧終了までに22秒間掛った。更に、前記40秒間加熱し た後に加圧させたものは、接合部が白色で溶け始める状態で加圧され、それが加 圧終了する迄に13秒間掛った。尚、この場合、加圧時間が34秒以上のものは接合 部が十分に加熱されずに強度不足になる恐れがあり、且つ前記加圧時間が13秒以 下のものは接合部のコブ形状が外観検査不良となり易くなる。FIG. 4 is an experimental data diagram showing the relationship between the heating time and the pressurizing time using the gas burner (31), which will be described. First, as an experimental condition, many steel materials (W) having a diameter of 25 mm and a length of 300 mm are prepared. After heating each steel material (W) for 20 seconds, 30 seconds, and 40 seconds before the start of pressurizing work, the steel material (W) at each heating time is heated to 300 Kg / cm 2 Was added and the pressurization time until the shrinkage margin of 30 mm was reached was measured. As a result, what was pressed after being heated for 20 seconds was pressed in a reddish black state at the joint, and the pressing time was 34 seconds. Moreover, it took 22 seconds for the pressurization after heating for 30 seconds to complete the pressurization. Further, what was heated and then pressed for 40 seconds was pressed in a state where the joint was white and began to melt, and it took 13 seconds until the pressing was completed. In this case, if the pressurizing time is 34 seconds or more, the joint may not be sufficiently heated and the strength may be insufficient, and if the pressurizing time is 13 seconds or less, the joint has a bump shape. Are likely to be defective in visual inspection.
【００１６】 このように加熱時間が長くなると、加圧時間が短くなる点に、本考案者は注目 し、多数の実験デ−タ−を基に、基準加圧時間をデ−タ−記憶部（47）に入力さ せて設定値を圧接作業する前に決定した。また上記条件で30秒間加熱した後に加 圧する場合の加圧時間範囲値の設定は13秒〜34秒とした。この作業を繰返して各 鋼材(Ｗ)の径に応じた適正条件を求めてデ−タ−選択部（46）に設定すると共に そのデ−タ−をデ−タ−記憶部（47）に入力させることにより、圧接作業が高能 率化できるのである。The inventor pays attention to the fact that the pressurizing time becomes shorter as the heating time becomes longer, and the reference pressurizing time is set in the data storage unit based on a large number of experimental data. The set value was input to (47) and determined before the pressure welding work. In addition, when the pressure was applied after heating for 30 seconds under the above conditions, the pressing time range value was set to 13 seconds to 34 seconds. By repeating this operation, an appropriate condition corresponding to the diameter of each steel material (W) is obtained and set in the data selection section (46), and the data is input to the data storage section (47). By doing so, the pressure welding work can be made more efficient.
【００１７】[0017]
本考案はこのように構成させたことにより、下記の効果を有する。 The present invention has the following effects by being configured in this way.
【００１８】 請求項１に示すように制御装置（４）には少なくとも、デ−タ−選択部（46） と、デ−タ−記憶部（47）と、圧接作業の良否を判断する判定部（44）とを備え 、且つ、鋼材(Ｗ)の圧接作業が不良と判断された際に作動する警報器（５）を具 備したことにより、圧接作業が極めて単純化でき、圧接作業時間を著しく短縮す ることが出来る。また本考案品で判断されることにより、十分な強度のものが得 られ、従来行われていた手間の掛る超音波探傷検査を省略させることが可能とな る。しかも、圧接作業不良が作業後即座に判断できると共に直ぐに手直し作業を 行うことが出来るため、手直しの効率が極めて良いものとなる。As described in claim 1, the control device (4) has at least a data selection unit (46), a data storage unit (47), and a determination unit for determining the quality of the pressure welding work. (44) and equipped with an alarm device (5) that is activated when the pressure welding work of the steel (W) is judged to be defective, the pressure welding work can be greatly simplified and the pressure welding work time can be shortened. It can be significantly shortened. In addition, by judging with the product of the present invention, a product having sufficient strength can be obtained, and it becomes possible to omit the conventionally-intensive ultrasonic flaw detection test. Moreover, since the defective press work can be determined immediately after the work and the work for rework can be performed immediately, the rework efficiency is extremely good.
【００１９】 請求項２に示すように制御装置（４）を、時計部（41），制御演算部（42）， 時間集計部（43），判定部（44），デ−タ−選択部（46），デ−タ−記憶部（47 ）から成すことにより、従来の機能に圧接作業の良否を判断する機能が設けられ ただけの簡単な構造となり、コストアップにならず、大きな成果が期待できる。According to a second aspect of the present invention, the control device (4) includes a clock section (41), a control calculation section (42), a time counting section (43), a judging section (44), a data selecting section ( 46), the data storage unit (47) makes it a simple structure that only has a function to judge the quality of pressure welding work in addition to the conventional function, and it is expected to produce great results without increasing cost. it can.
【００２０】 請求項３のように流量計又はオイル吐出量検出器の加圧時間検出手段（23）と 、縮み代用リミットスイッチ又はポテンションメ−タ−の圧縮完了検出手段（24 ）と、バ−ナ繰出用リミットスイッチ（33a）又は電磁弁（33b）の加熱時間検出 手段（33）を用いることにより、従来の装備品がそのまま本考案として利用でき る。また新たな部品が不要で、コストが掛らない。The pressurizing time detecting means (23) of the flow meter or the oil discharge amount detector, the compression substitute limit switch or the compression completion detecting means (24) of the potentiometer, -By using the heating time detection means (33) for the feeding limit switch (33a) or solenoid valve (33b), the conventional equipment can be used as it is as the present invention. In addition, no new parts are required, so there is no cost.
【００２１】 請求項４のようにガスバ−ナ（31）として鋼材（Ｗ）の焼幅全体が一度に加熱 可能な構造のものを用いることにより、加熱作業が簡単にでき、従来の軸方向に 往復揺動させるものよりも約７〜８割加熱時間が短縮する。また従来のリングバ −ナを確実に往復揺動させる装置が不要であると共にリングバ−ナの往復揺動の 規制する装置も不要となる。By using a gas burner (31) having a structure capable of heating the entire burnt width of the steel material (W) at a time as in claim 4, the heating operation can be simplified and the conventional axial direction can be improved. The heating time is shortened by about 70 to 80% as compared with the case of swinging back and forth. Further, a conventional device for reliably swinging the ring burner back and forth is not necessary, and a device for restricting the swinging back and forth of the ring burner is also unnecessary.
【００２２】 請求項５のように制御装置（４）にプリンタ−（６）を接続させることにより 、種々のデ−タ−が採取でき、このデ−タ−を参照することにより、圧接作業の 良否判断をより確実な高精度のものと成すことが可能となる。By connecting the printer (6) to the control device (4) as claimed in claim 5, various data can be collected. By referring to this data, the pressure welding work can be performed. It is possible to make a pass / fail judgment with more certainty and high accuracy.
【図１】本考案の実施例のガス圧接装置全体を示す説明
図である。FIG. 1 is an explanatory view showing an entire gas pressure welding device according to an embodiment of the present invention.
【図２】本考案の制御装置の構造を示すブロック図であ
る。FIG. 2 is a block diagram showing a structure of a control device of the present invention.
【図３】鋼材の接合部の焼幅全体が一度に加熱できるガ
スバ−ナを示す斜視図である。FIG. 3 is a perspective view showing a gas burner capable of heating the entire burned width of a joint portion of steel materials at one time.
【図４】油圧ラムの圧力変動と時間との関係を表したグ
ラフである。FIG. 4 is a graph showing a relationship between a pressure fluctuation of a hydraulic ram and time.
【図５】鋼材の圧接作業に使用される従来の加圧パタ−
ンの例を示す説明図である。FIG. 5: Conventional pressure pattern used for pressure welding of steel materials
FIG.
１ 圧接器 ２ 加圧器 21 油圧ラム 22 油圧ユニット 23 加圧時間検出手段 24 圧縮完了検出手段 ３ 加熱装置 31 ガスバ−ナ 31a 環体 31b ノズル 33 加熱時間検出手段 33a バ−ナ繰出用リミットスイッチ 33b 電磁弁 ４ 制御装置 41 時計部 42 制御演算部 43 時間集計部 44 判定部 45 基準範囲値 46 デ−タ−選択部 47 デ−タ−記憶部 ５ 警報器 ６ プリンタ− Ｗ 鋼材 1 pressure contactor 2 pressurizer 21 hydraulic ram 22 hydraulic unit 23 pressurizing time detecting means 24 compression completion detecting means 3 heating device 31 gas burner 31a ring 31b nozzle 33 heating time detecting means 33a burner feed-out limit switch 33b electromagnetic Valve 4 Control device 41 Clock unit 42 Control calculation unit 43 Time counting unit 44 Judgment unit 45 Reference range value 46 Data selection unit 47 Data storage unit 5 Alarm device 6 Printer W Steel material
Claims (5)
（１）と、その鋼材（Ｗ）を加圧すると共にその加圧作
業時間が検出できる加圧時間検出手段（23）及びその加
圧作業終了が検出できる圧縮完了検出手段（24）とを有
する加圧器（２）と、前記鋼材（Ｗ）の接合部が加熱さ
れるガスバ−ナ（31）及びその加熱時間が検出できる加
熱時間検出手段（33）を有する加熱装置（３）と、前記
加圧器（２）や加熱装置（３）などを制御する制御装置
（４）とから構成された自動ガス圧接装置に於いて、前
記制御装置（４）に少なくとも、前記ガスバ−ナ（31）
の火炎調節，焼幅，加圧力，その加圧要領，圧縮量など
が鋼材(Ｗ)の径に応じた適正条件を設定するデ−タ−選
択部（46）と、従来の前作業を省略して直ぐに本作業に
入ると共に前記加圧力が所定の上限圧で維持されるデ−
タ−を入力したデ−タ−記憶部（47）と、前記鋼材(Ｗ)
が赤熱された後に上限圧で加圧してコブ状の膨張部が形
成される迄の加圧時間の長さによって圧接作業の良否を
判断する判定部（44）とを備え、且つ、前記判定部（4
4）の判断が不良の際に作動する警報器（５）を具備し
たことを特徴とする自動ガス圧接装置。1. A press-connecting device (1) for holding two steel materials (W), a pressurizing time detecting means (23) capable of pressurizing the steel materials (W) and detecting pressurizing working time thereof, and the addition thereof. A pressurizer (2) having a compression completion detecting means (24) capable of detecting the end of pressing work, a gas burner (31) for heating the joint portion of the steel material (W), and a heating time capable of detecting the heating time thereof. An automatic gas pressure welding device comprising a heating device (3) having a detection means (33) and a control device (4) for controlling the pressurizer (2), the heating device (3), etc. At least the gas burner (31) in the device (4).
The data selection part (46) for setting appropriate conditions for flame adjustment, burn width, pressure, its pressure point, compression amount, etc. according to the diameter of the steel material (W), and the conventional pre-work are omitted. Immediately after this, the work is started and the pressing force is maintained at a predetermined upper limit pressure.
Data storage unit (47) for inputting data and the steel material (W)
A determination section (44) for determining the quality of the pressure welding operation based on the length of the pressurization time until the bump-shaped expansion section is formed by applying the upper limit pressure after being red-heated. (Four
An automatic gas pressure welding device comprising an alarm device (5) which is activated when the judgment in 4) is defective.
段（23）や圧縮完了検出手段（24）からのデ−タ−によ
りその各時間を計測するための時計部（41）と、圧接作
業全体を制御する制御演算部（42）と、前記時計部（4
1）の時間集計を行う時間集計部（43）と、該時間集計
部（43）によって求められた加圧時間が基準範囲値（4
5）に入っているか否かを比較判断する判定部（44）
と、前記デ−タ−選択部（46）及び前記デ−タ−記憶部
（47）とから成る請求項１記載の自動ガス圧接装置。2. A clock unit (41) for the control device (4) to measure each time by means of data from the pressurization time detection means (23) and the compression completion detection means (24). , A control calculation unit (42) for controlling the entire pressure welding work, and the clock unit (4)
The time counting unit (43) that performs the time counting of 1) and the pressurizing time obtained by the time counting unit (43) are within the reference range value (4
5) Judgment unit (44) for comparing and judging whether or not it is in
2. The automatic gas pressure welding device according to claim 1, further comprising: a data selecting unit (46) and a data storing unit (47).
器（２）の油圧ユニット（22）から吐出されるオイルの
流量を測定する流量計又はオイル吐出量検出器であり、
且つ前記圧縮完了検出手段（24）が縮み代用リミットス
イッチ又はポテンションメ−タ−であると共に、前記加
熱時間検出手段（33）がバ−ナ繰出用リミットスイッチ
（33a）又は電磁弁（33b）である請求項１記載の自動ガ
ス圧接装置。3. The pressurization time detecting means (23) is a flow meter or an oil discharge amount detector for measuring the flow rate of oil discharged from the hydraulic unit (22) of the pressurizer (2),
Further, the compression completion detecting means (24) is a contraction substitute limit switch or potentiometer, and the heating time detecting means (33) is a burner feeding limit switch (33a) or solenoid valve (33b). The automatic gas pressure welding device according to claim 1.
内側に多数のノズル（31b）を中心に向けて等間隔に設
けると共に鋼材（Ｗ）の軸方向に対しても多数列に配列
させ、鋼材（Ｗ）の焼幅全体が一度に加熱可能な構造の
ものを用いて成る請求項１記載の自動ガス圧接装置。4. The ring body (31a) is attached to the gas burner (31).
A structure in which a large number of nozzles (31b) are provided inside at equal intervals and are arranged in multiple rows in the axial direction of the steel material (W) so that the entire burned width of the steel material (W) can be heated at one time. The automatic gas pressure welding device according to claim 1, wherein the automatic gas pressure welding device is used.
ントアウト可能なプリンタ−（６）を接続して成る請求
項１又は２記載の自動ガス圧接装置。5. The automatic gas pressure welding device according to claim 1 or 2, wherein a printer (6) capable of printing out data is connected to the control device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995006070U JP3018641U (en) | 1995-05-25 | 1995-05-25 | Automatic gas pressure welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1995006070U JP3018641U (en) | 1995-05-25 | 1995-05-25 | Automatic gas pressure welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3018641U true JP3018641U (en) | 1995-11-28 |
Family
ID=43154081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1995006070U Expired - Lifetime JP3018641U (en) | 1995-05-25 | 1995-05-25 | Automatic gas pressure welding device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3018641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3384771B2 (en) | 1999-05-17 | 2003-03-10 | 二 瓶 ひろみ | Forged piece used as crater for gas pressure welding, method for producing crater for gas pressure welding using the same, and burner for gas pressure welding using the crater for gas pressure welding |
-
1995
- 1995-05-25 JP JP1995006070U patent/JP3018641U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3384771B2 (en) | 1999-05-17 | 2003-03-10 | 二 瓶 ひろみ | Forged piece used as crater for gas pressure welding, method for producing crater for gas pressure welding using the same, and burner for gas pressure welding using the crater for gas pressure welding |
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