JP2001001164A - Data control for product by friction welding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To grasp the quality of a product by controlling with mutual function controls relations between the control of the speeds of revolution of a main spindle and pushing forces in the whole operation from a pressure during the rotation of the main spindle to an upset pressure after the rotation stopped, and collecting each data. SOLUTION: By rotating a work to be welded by rotating a main spindle with a servomotor 1 for rotating and driving and by driving with a servomotor 4 for pressure a moving table on which a main body 3 to be welded has been fixed, a friction operation is performed. The mutual working of rotational speeds and pressuring forces from the start of a rotation friction state to a stop, is performed in accordance with a formula; dc=k×n2×p×d, and a rotary drive servomotor 1 and a motor 4 for pressure drive are controlled by a controller. In the formula, (dc) is the temperature increase of a friction part, (n) is a relative rotational speed, (p) is a pushing pressure force, (k) is a variable to be determined by a material, a shape and a temperature, and (b) is a variable to be determined by a pressure force and a temperature. This formula is the working condition of friction welding, by collecting as data pressure thrust and the speeds of revolution of the friction part, which are this condition data, and by operating them, the working condition can be grasped.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明が属する技術分野】本発明は摩擦圧接に関するも
ので生産品の品質の均一化を向上させる摩擦圧接機に有
効。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to friction welding and is effective for a friction welding machine for improving the uniformity of quality of a product.

【０００２】[0002]

【従来の技術】固相圧接合するために金属材料を分子寸
法の程度迄互いに接近させることが必要であり、この接
近させるため大きな加圧力を要する。摩擦圧接法では材
料を加圧接触させ、その摩擦熱による変形抵抗力を下げ
た加圧を加えている。材料の圧接部温度と加圧の関係は
接合状態と密接に関係するが、加圧力と温度との関係は
制御されておらず、接合状態の確認は実製品で加工条件
を変えて試行錯誤を繰り返し行い、最適の状態を作りだ
し、その後に同条件で製品を製作する。この時摩擦部の
回転変動、押し付け変化、停止時の制動動力変化が発生
し、加工条件の変化による製品品質のバラツキは把握で
きない。2. Description of the Related Art In order to perform solid-state pressure bonding, it is necessary to bring metal materials close to each other to the extent of the molecular size, and a large pressing force is required for this approach. In the friction welding method, a material is brought into contact under pressure, and pressure is applied to reduce the deformation resistance due to the frictional heat. The relationship between the press-contact temperature of the material and the pressurization is closely related to the joining state, but the relationship between the pressing force and the temperature is not controlled. Repeat to create the optimal condition, and then manufacture the product under the same conditions. At this time, rotation fluctuation of the friction portion, a change in pressing force, and a change in braking power at the time of stoppage occur, and it is not possible to grasp variations in product quality due to changes in processing conditions.

【０００３】[0003]

【発明が解決しようとする課題】接合部の加工状態は主
軸の回転数と押し付け推力と加圧時間で定まるが、各の
製品はそれら加工条件のいずれかが変動し加工状態が変
化しても検知されない、またデータとして収集されてい
ないため生産品の個別の加工品質状態は把握されず、生
産後の品質上のトラブル時等に加工状態の確認、参照が
できない点にある。The processing state of the joint is determined by the rotation speed of the main shaft, the pressing thrust, and the pressurizing time. However, even if any of these processing conditions fluctuates and the processing state changes for each product. Since it is not detected and is not collected as data, the individual processing quality state of the product is not grasped, and the processing state cannot be confirmed or referred to when there is a quality problem after production.

【０００４】[0004]

【課題を解決するための手段】本発明は、回転数の制御
と押しつけ力の関係を回転中の加圧から、回転停止しア
ップセット加圧までの全動作を相互の関数制御で制御
し、各データを収集する。摩擦圧接部の定常時の温度上
昇と押し付け加圧力は（１）式に従う ｄｃ＝ｋ＊ｎ＾２＊ｐ＊ｂ （１） ｄｃ 摩擦部の温度上昇 ｎ 相対相対回転速度 ｐ 押しつけ加圧力 ｋ 材料と形状及び温度による定まる変数 ｂ 加圧力と温度によって決まる変数 式（１）は摩擦接合の加工条件である、温度および加圧
力の関係を示し、この条件データである加圧推力、摩擦
部回転数をデータとして収集し、演算すれば加工状態を
把握できることになる。以上より、摩擦圧接動作開始か
ら、回転停止しアップセット加圧までの回転数、加圧を
制御している状態で、リアルタイムに記憶し、データと
して加工品との各対応を行い保存することで品質データ
となる。According to the present invention, the relationship between the control of the number of rotations and the pressing force is controlled by mutual function control from pressurization during rotation to rotation stop and upset pressurization. Collect each data. The steady-state temperature rise and the pressing force of the friction welding portion follow Formula (1). Dc = k * n ＾ 2 * p * b (1) dc Temperature rise of the friction portion n Relative relative rotational speed p Pressing force k Material And variables determined by the shape and temperature. B Variables determined by the applied pressure and temperature. Equation (1) shows the relationship between temperature and applied pressure, which are the processing conditions for friction welding. Is collected as data, and if it is calculated, the machining state can be grasped. From the above, by controlling the number of rotations and pressurization from the start of friction welding operation to the rotation stop and upset pressurization, it is stored in real time, and each correspondence with the processed product as data is saved. It becomes quality data.

【０００５】[0005]

【発明の実施の形態】本発明は回転体を制御する、駆動
サーボモータと押し付け加圧力を発生させる、軸移動用
サーボモータおよび加工データを記憶する記憶装置、お
よび制御するコントローラより構成される。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention comprises a drive servomotor for controlling a rotating body, a servomotor for generating a pressing force, a shaft movement servomotor, a storage device for storing machining data, and a controller for controlling.

【０００６】[0006]

【実施例】図１に於いて、１の回転駆動用サーボモータ
は、２の接合ワークを回転させる。３の接合本体を固定
した移動テーブルを、４の加圧駆動サーボモータで駆動
し摩擦圧接動作を行う。回転摩擦状態開始から停止加圧
まで、回転速度と加圧力の相互作用を式（１）に従い、
５のコントローラが、モータ１およびモータ４を制御
し、またリアルタイムに主軸回転数、加圧駆動トルクを
データとして収集し保存する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a rotary motor 1 rotates a joint work 2. The moving table to which the joining body 3 is fixed is driven by the pressurizing drive servomotor 4 to perform the friction welding operation. From the start of the rotational friction state to the stop pressurization, the interaction between the rotational speed and the pressing force is calculated according to equation (1),
The controller 5 controls the motor 1 and the motor 4 and collects and saves the spindle speed and the pressurizing drive torque as data in real time.

【０００７】[0007]

【発明の効果】本発明によれば回転と押し付け力のデー
タを収集することで、摩擦熱発生と、形状によって定ま
る摩擦部の温度および加圧アップセット力が把握出来、
作り出された圧接合製品の一対一の品質データが収集さ
れたことになる。このデータにより出荷後の履歴対応等
品質の向上に寄与する。According to the present invention, the generation of frictional heat, the temperature of the frictional portion and the pressure upset force determined by the shape can be grasped by collecting the data of the rotation and the pressing force.
One-to-one quality data of the produced pressure-bonded products has been collected. This data contributes to the improvement of quality such as handling of history after shipment.

【図面の簡単な説明】[Brief description of the drawings]

【図１】圧接接合の実施例FIG. 1 is an embodiment of pressure welding.

【符号の説明】[Explanation of symbols]

１ 回転駆動サーボモータ ２ 接合ワーク ３ 接合本体 ４ 加圧駆動用サーボモータ ５ 主軸回転制御、加圧制御、データ収集、各コント
ローラDESCRIPTION OF REFERENCE NUMERALS 1 rotation drive servomotor 2 joining work 3 joining body 4 servomotor for pressure drive 5 spindle rotation control, pressure control, data collection, each controller

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 圧接するワークを回転させる主軸と、ワ
ークを本体に圧接するために押し付け加圧させる駆動テ
ーブルの機構を持ち、主軸回転数と押しつけ推力及び速
度の関係を相互の関数として制御し、各加工品毎に加工
時のデータをリアルタイムに記憶、保存、管理して生産
品の製品加工及び品質のデータとして収集する摩擦圧接
機The present invention has a main shaft for rotating a work to be pressed and a drive table mechanism for pressing and pressing the work to press the main body. The relationship between the rotation speed of the main shaft and the pressing thrust and speed is controlled as a mutual function. , A friction welding machine that stores, saves, and manages data during processing for each processed product in real time and collects data on product processing and quality of manufactured products