JP2000005927A - Method and device for detecting lancing of sawing machine, and method and device for controlling sawing machine - Google Patents
Method and device for detecting lancing of sawing machine, and method and device for controlling sawing machineInfo
- Publication number
- JP2000005927A JP2000005927A JP17629398A JP17629398A JP2000005927A JP 2000005927 A JP2000005927 A JP 2000005927A JP 17629398 A JP17629398 A JP 17629398A JP 17629398 A JP17629398 A JP 17629398A JP 2000005927 A JP2000005927 A JP 2000005927A
- Authority
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- Prior art keywords
- bending
- amount
- saw blade
- cutting
- cut
- 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.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋸盤の切曲り検出
方法及びその装置、並びに鋸盤の制御方法及びその装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for detecting a bending of a sawing machine, and a method and an apparatus for controlling a sawing machine.
【０００２】[0002]
【従来の技術】鋸盤としての例えば縦型帯鋸盤１０１に
おいては、図８および図９に示されているように鋸刃Ｂ
Ｓの歯先摩耗の進行に伴い、切削抵抗の増加や摩耗のア
ンバランスによって発生する力が鋸刃ＢＳの直進性より
も勝って切曲りが発生する。2. Description of the Related Art In a vertical band sawing machine 101 as a sawing machine, for example, as shown in FIGS.
As the tip wear of S progresses, the force generated by the increase in cutting resistance and the imbalance of wear exceeds the straightness of the saw blade BS and causes bending.
【０００３】従来の帯鋸盤１０１においては、鋸刃寿命
向上のために切曲り検出装置１０３より検出された切曲
り量に基づいて後述する切曲り補正による制御が行われ
ている。[0003] In the conventional band saw machine 101, a control by a later-described bending correction is performed based on a bending amount detected by the bending detecting device 103 in order to improve the life of the saw blade.
【０００４】従来の切曲り検出装置１０３としては、例
えば特開平１−１０９０１９号公報や、実開平２−７９
１５号公報等に示されているようにすでに既知のもの
で、例えば図８に示されているように切曲りが発生する
と鋸刃ＢＳが２つのガイド部材１０５間の一点鎖線で示
される正規の位置より変位する。帯鋸刃ＢＳの胴部に押
圧・接触するローラや接触子の移動量を測定して鋸刃Ｂ
Ｓの変位量を検出し、切曲りの最大は二点鎖線で示され
ているように被削材Ｗの中心部で最大になるという想定
の基に変位量から演算により被削材Ｗの中心で発生して
いる切曲がり量を検出するものがある。As the conventional bending detecting device 103, for example, Japanese Unexamined Patent Publication No.
For example, as shown in Japanese Unexamined Patent Application Publication No. 15-115, for example, when a bend occurs as shown in FIG. Displaced from position. Measure the amount of movement of the roller or contact that presses and contacts the body of the band saw blade BS, and
The amount of displacement of S is detected, and the maximum bending is calculated from the amount of displacement based on the assumption that the maximum bending at the center of the workpiece W is indicated by the two-dot chain line. There is one that detects the amount of bending generated in the above.
【０００５】変位測定位置までの距離を△Ｌ（定数）と
し、被削材Ｗの中心までの距離をＬとし、変位量を△ｘ
とすると、切曲り量Ｘは、Ｘ＝△ｘ・Ｌ／△Ｌとなる。The distance to the displacement measurement position is represented by ΔL (constant), the distance to the center of the workpiece W is represented by L, and the displacement is represented by Δx
Then, the bending amount X becomes X = △ x · L / △ L.
【０００６】切曲り補正による制御方法としては、上記
のように演算されて得られた切曲り量Ｘに基づいて、例
えば、前記切曲り量Ｘが予め設定された切曲り限界値に
対してオーバーすると、瞬時もしくは規定時間オーバー
し続けると切断を中止することによりスクラップを防い
でいた。[0006] As a control method based on the bending correction, for example, based on the bending amount X calculated as described above, for example, the bending amount X exceeds a predetermined bending limit value. Then, the scrap was stopped by stopping the cutting instantly or when the specified time was exceeded.
【０００７】ＣＮＣ帯鋸盤１０１においては、切曲り検
出装置１０３および切削条件を自動的に設定する機能が
備えられている。例えば、切曲り設定値をＡmmとする
と、切曲りが増加して設定値Ａmm以上になると切削条件
を緩和させる方向に自動設定する。設定条件は、過去の
経験から鋸速と切込速度を通常の数１０％程度にするの
が一般的である。[0007] The CNC band sawing machine 101 is provided with a function for automatically setting a bending detection device 103 and cutting conditions. For example, assuming that the set value of the bending is Amm, when the bending increases and becomes equal to or more than the set value Amm, the cutting condition is automatically set so as to relax the cutting conditions. As a setting condition, it is general that the saw speed and the cutting speed are set to about several tens of percent of the normal value based on past experience.
【０００８】[0008]
【発明が解決しようとする課題】ところで、従来の切曲
り検出装置１０３においては、実際の切曲りは一様では
なく、図８に示されているように切曲り検出装置１０３
により検出された切曲り量Ｘは実際の切曲り量より大き
くなったり、図９に示されているように切曲り量Ｘが実
際の切曲り量より小さくなったりして切曲り量の検出精
度が悪いという問題点があった。However, in the conventional bending detecting device 103, the actual bending is not uniform, and as shown in FIG.
The bending amount X detected by the above becomes larger than the actual bending amount, or the bending amount X becomes smaller than the actual bending amount as shown in FIG. There was a problem that was bad.
【０００９】この理由で、従来の切曲り検出装置１０３
により検出された切曲り量Ｘに基づいて切曲りが補正さ
れるので、実際には補正すべきであるのに補正されずに
鋸刃が摩耗したままの状態で切断加工が行われるために
鋸刃ＢＳの寿命を短くしたり、実際にはまだ補正しなく
ともよいのに早く補正して鋸刃速度や切込速度を低下さ
せてしまうので、切断加工効率を低下してしまうという
問題点があった。For this reason, the conventional bending detecting device 103
Since the bending is corrected based on the bending amount X detected by the above, the cutting process is performed in a state where the saw blade is still worn without being corrected although it should be actually corrected. The problem is that the service life of the blade BS is shortened, or the cutting speed is reduced by reducing the saw blade speed and the cutting speed quickly by actually correcting it without having to actually correct it yet. there were.
【００１０】本発明は叙上の課題を解決するためになさ
れたもので、その目的は、切曲り量の検出精度が高い鋸
刃の切曲り検出方法およびその装置を提供し、並びに検
出精度の高い切曲り量に基づいて切曲りを抑制して鋸刃
寿命の延命を図ることにより鋸刃寿命を向上させる鋸盤
の制御方法およびその装置を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a method and an apparatus for detecting a bending of a saw blade having a high detection accuracy of a bending amount, and a method of detecting the detection accuracy. It is an object of the present invention to provide a control method and a device for a sawing machine for improving the life of a saw blade by suppressing the bending based on a high amount of bending and extending the life of the saw blade.
【００１１】[0011]
【課題を解決するための手段】上記目的を達成するため
に請求項１によるこの発明の鋸盤の切曲り検出方法は、
鋸刃により被削材を切断加工する際に発生する切曲りを
検出する鋸盤の切曲り検出方法において、切断済みの製
品の切断面を測定することにより実際の切曲り量を検出
すると共にこの製品の切断加工時における鋸刃の切曲り
の変位量から求めた切曲り量の演算値を制御装置のメモ
リに記憶せしめ、この製品における実際の切曲り量と切
断加工時の切曲り量の演算値との差違を前記切断加工中
の鋸刃の切曲りの変位量を検出して演算によって求めら
れた切曲り量の演算値に反映して前記切断加工中の鋸刃
における予想切曲り量に換算せしめることを特徴とする
ものである。According to a first aspect of the present invention, there is provided a method for detecting a bending of a sawing machine.
In a method for detecting the bending of a sawing machine, which detects the bending generated when cutting a workpiece with a saw blade, an actual amount of bending is detected by measuring a cut surface of a cut product. The calculated value of the amount of bending determined from the amount of displacement of the bending of the saw blade during cutting of the product is stored in the memory of the control device, and the actual amount of bending of the product and the amount of bending during the cutting are calculated. The difference between the value and the expected amount of bending in the saw blade during the cutting is reflected on the calculated value of the amount of bending determined by calculating by detecting the amount of displacement of the bending of the saw blade during the cutting. It is characterized by conversion.
【００１２】したがって、切断済みの製品の切断面を測
定することにより実際の切曲り量を検出し、この実際の
切曲り量とこの製品の切断加工時における鋸刃の切曲り
の変位量から求めた切曲り量の演算値との差違を考慮し
て、この差違が現在切断加工中の鋸刃の切曲り量の演算
値が簡単に反映されて正確な予想切曲り量に換算される
ので、より実際に近い切曲り量が切断加工中に刻々オン
タイムで得られる。この情報を基にして切断加工条件を
変更するなどの対応をすることによって不良品を出さず
に効率よく切断加工が続行される。Therefore, the actual amount of bending is detected by measuring the cut surface of the cut product, and is obtained from the actual amount of bending and the displacement of the bending of the saw blade during the cutting of the product. Considering the difference between the calculated value of the amount of bending and the calculated value of the amount of bending of the saw blade that is currently being cut, this difference is easily reflected and converted into an accurate expected amount of bending. A more realistic bending amount can be obtained on-time during the cutting process. By taking measures such as changing the cutting processing conditions based on this information, the cutting processing can be continued efficiently without producing defective products.
【００１３】請求項２によるこの発明の鋸盤の切曲り検
出装置は、鋸刃により被削材を切断加工する際に発生す
る切曲りを検出する鋸盤の切曲り検出装置において、前
記切断加工中の鋸刃の切曲りの変位量を検出する鋸刃変
位量検出装置と、切断加工済みの製品の切断面を測定し
て実際の切曲り量を検出する切口切曲り検出装置と、前
記鋸刃変位量検出装置で検出した変位量から鋸刃の切曲
り量の演算値を算出すると共に前記切口切曲り検出装置
にて得た製品における実際の切曲り量と鋸刃変位量検出
装置にて得た前記製品の切断加工時の切曲り量の演算値
との差違を前記切断加工中の鋸刃の切曲り量の演算値に
反映して前記切断加工中の鋸刃における予想切曲り量に
換算せしめる演算部を備えた制御装置と、からなること
を特徴とするものである。According to a second aspect of the present invention, there is provided an apparatus for detecting a bending of a sawing machine according to the present invention, which detects a bending generated when a workpiece is cut by a saw blade. A saw blade displacement amount detecting device for detecting a displacement amount of a cutting edge of a saw blade, a cut edge bending detecting device for measuring a cut surface of a cut product, and detecting an actual cutting amount; The calculated value of the amount of bending of the saw blade is calculated from the displacement amount detected by the blade displacement amount detecting device, and the actual amount of bending and the saw blade displacement amount detecting device in the product obtained by the cut edge bending detecting device. The difference between the obtained calculated value of the amount of bending at the time of cutting of the product and the calculated value of the amount of bending of the saw blade during the cutting is reflected in the expected amount of bending at the saw blade during the cutting. A control device provided with a calculation unit for performing the conversion. A.
【００１４】したがって、請求項１記載の作用と同様で
あり、切断済みの製品の切断面を測定することにより実
際の切曲り量を検出し、この実際の切曲り量とこの製品
の切断加工時における鋸刃の切曲りの変位量から求めた
切曲り量の演算値との差違を考慮して、この差違が現在
切断加工中の鋸刃の切曲り量の演算値が簡単に反映され
て正確な予想切曲り量に換算されるので、より実際に近
い予想切曲り量が切断加工中に刻々オンタイムで得られ
る。この情報を基にして切断加工条件を変更するなどの
対応をすることによって不良品を出さずに効率よく切断
加工が続行される。Therefore, the operation is similar to that of the first aspect, and the actual bending amount is detected by measuring the cut surface of the cut product, and the actual bending amount and the time of cutting the product are measured. Considering the difference from the calculated value of the amount of bending calculated from the amount of displacement of the cutting edge of the saw blade, this difference is easily reflected in the calculated value of the amount of bending of the saw blade currently being cut. Since it is converted into an expected bending amount, a more realistic expected bending amount can be obtained every time on-time during cutting. By taking measures such as changing the cutting processing conditions based on this information, the cutting processing can be continued efficiently without producing defective products.
【００１５】請求項３によるこの発明の鋸盤の制御方法
は、鋸刃により被削材を切断加工する際に発生する切曲
りを制御する鋸盤の制御方法において、切断済みの製品
の切断面を測定することにより実際の切曲り量を検出す
ると共にこの製品の切断加工時における鋸刃の切曲りの
変位量から求めた切曲り量の演算値を制御装置のメモリ
に記憶せしめ、この製品における実際の切曲り量と切断
加工時の切曲り量の演算値との差違を前記切断加工中の
鋸刃の切曲りの変位量を検出して演算によって求められ
た切曲り量の演算値に反映して前記切断加工中の鋸刃に
おける予想切曲り量に換算せしめ、この換算して得た予
想切曲り量が予め設定されている切曲り限界値より大の
ときに切断加工を停止し、上記予想切曲り量が上記限界
値より小さく、且つ所定の設定値より大のときに前記鋸
刃の切込速度および／又は鋸刃速度を低下させて切断加
工を続行することを特徴とするものである。According to a third aspect of the present invention, there is provided a method for controlling a sawing machine according to a third aspect of the present invention, which controls a bending generated when a workpiece is cut by a saw blade. Measuring the actual amount of bending and storing the calculated value of the amount of bending determined from the amount of displacement of the bending of the saw blade at the time of cutting of the product in the memory of the control device. The difference between the actual amount of bending and the calculated value of the amount of bending at the time of cutting is reflected in the calculated value of the amount of bending determined by calculation by detecting the amount of displacement of the bending of the saw blade during the cutting. Then, the estimated bending amount of the saw blade during the cutting process is converted, and the cutting process is stopped when the estimated bending amount obtained by the conversion is larger than a preset bending limit value. The expected bending amount is smaller than the above limit value, and Is characterized in that to continue the cutting process by reducing the cutting speed and / or saw blade speed of the saw blade when larger than a predetermined set value.
【００１６】したがって、切断済みの製品の切断面を測
定することにより実際の切曲り量を検出し、この実際の
切曲り量とこの製品の切断加工時における鋸刃の切曲り
の変位量から求めた切曲り量の演算値との差違を考慮し
て、この差違が現在切断加工中の鋸刃の切曲り量の演算
値が簡単に反映されて正確な予想切曲り量に換算される
ので、より実際に近い予想切曲り量が切断加工中に刻々
オンタイムで得られる。Accordingly, the actual amount of bending is detected by measuring the cut surface of the cut product, and is obtained from the actual amount of bending and the amount of displacement of the bending of the saw blade during cutting of the product. Considering the difference between the calculated value of the amount of bending and the calculated value of the amount of bending of the saw blade that is currently being cut, this difference is easily reflected and converted into an accurate expected amount of bending. An expected bending amount that is closer to the actual one can be obtained on-time during the cutting process.
【００１７】また、このようなより正確な情報を基にし
て切曲り量の設定値に対する測定値が所定以上になった
ら切り込み速度および鋸刃速度の両者あるいはいずれか
一方を低下させて切断加工が続行されるので、切曲り量
の増加が抑えられる。Further, based on such more accurate information, when the measured value with respect to the set value of the amount of bending becomes a predetermined value or more, the cutting speed is reduced and / or the saw blade speed is decreased to perform cutting. Since the process is continued, an increase in the amount of bending is suppressed.
【００１８】請求項４によるこの発明の鋸盤の制御方法
は、鋸刃により被削材を切断加工する際に発生する切曲
りを制御する鋸盤の制御方法において、切断済みの製品
の切断面を測定することにより実際の切曲り量を検出す
ると共にこの製品の切断加工時における鋸刃の切曲りの
変位量から求めた切曲り量の演算値を制御装置のメモリ
に記憶せしめ、この製品における実際の切曲り量と切断
加工時の切曲り量の演算値との差違を前記切断加工中の
鋸刃の切曲りの変位量を検出して演算によって求められ
た切曲り量の演算値に反映して前記切断加工中の鋸刃に
おける予想切曲り量に換算せしめ、この換算して得た予
想切曲り量が予め設定されている切曲り限界値より大の
ときに切断加工を停止し、上記予想切曲り量が上記限界
値より小さく、且つ所定の設定値より大のときに前記鋸
刃の切込速度および／又は鋸刃速度を低下させて切断加
工を続行し、以後予想切曲り量が前記所定の設定値より
大のときに前記鋸刃の切込速度および／又は鋸刃速度を
繰り返し低下させて切断加工を続行することを特徴とす
るものである。According to a fourth aspect of the present invention, there is provided a method for controlling a sawing machine according to a fourth aspect of the present invention, which controls a bending generated when a workpiece is cut by a saw blade. Measuring the actual amount of bending and storing the calculated value of the amount of bending determined from the amount of displacement of the bending of the saw blade at the time of cutting of the product in the memory of the control device. The difference between the actual amount of bending and the calculated value of the amount of bending at the time of cutting is reflected in the calculated value of the amount of bending determined by calculation by detecting the amount of displacement of the bending of the saw blade during the cutting. Then, the estimated bending amount of the saw blade during the cutting process is converted, and the cutting process is stopped when the estimated bending amount obtained by the conversion is larger than a preset bending limit value. The expected bending amount is smaller than the above limit value, and When the cutting speed is larger than a predetermined set value, the cutting speed and / or the saw blade speed of the saw blade is reduced to continue the cutting process. Thereafter, when the expected bending amount is larger than the predetermined set value, the sawing is performed. The cutting process is continued by repeatedly reducing the cutting speed and / or the saw blade speed of the blade.
【００１９】したがって、切断済みの製品の切断面を測
定することにより実際の切曲り量を検出し、この実際の
切曲り量とこの製品の切断加工時における鋸刃の切曲り
の変位量から求めた切曲り量の演算値との差違を考慮し
て、この差違が現在切断加工中の鋸刃の切曲り量の演算
値が簡単に反映されて正確な予想切曲り量に換算される
ので、より実際に近い予想切曲り量が切断加工中に刻々
オンタイムで得られる。Therefore, the actual bending amount is detected by measuring the cut surface of the cut product, and the actual bending amount is obtained from the actual bending amount and the displacement of the bending of the saw blade at the time of cutting the product. Considering the difference between the calculated value of the amount of bending and the calculated value of the amount of bending of the saw blade that is currently being cut, this difference is easily reflected and converted into an accurate expected amount of bending. An expected bending amount that is closer to the actual one can be obtained on-time during the cutting process.
【００２０】また、正確な情報を基にして切曲り量の設
定値に対する測定値が所定以上になったら切り込み速度
および鋸刃速度の両者あるいはいずれか一方を繰り返し
低下させて切断加工が続行されるので、適切に切曲り量
の増加が抑えられる。Further, when the measured value for the set value of the amount of bending becomes a predetermined value or more based on the accurate information, the cutting speed is repeatedly decreased and / or the saw blade speed is decreased to continue the cutting process. Therefore, an increase in the amount of bending can be appropriately suppressed.
【００２１】請求項５によるこの発明の鋸盤の制御装置
は、鋸刃により被削材を切断加工する際に発生する切曲
りを制御する鋸盤の制御装置において、前記切断加工中
の鋸刃の切曲りの変位量を検出する鋸刃変位量検出装置
と、切断加工済みの製品の切断面を測定して実際の切曲
り量を検出する切口切曲り検出装置と、前記鋸刃変位量
検出装置で検出した変位量から鋸刃の切曲り量の演算値
を算出すると共に前記切口切曲り検出装置にて得た製品
における実際の切曲り量と鋸刃変位量検出装置にて得た
前記製品の切断加工時の切曲り量の演算値との差違を前
記切断加工中の鋸刃の切曲り量の演算値に反映して前記
切断加工中の鋸刃における予想切曲り量に換算せしめる
演算部と、前記切断加工において許容できる切曲り量の
限界である切曲り限界値や所定の設定値を入力する入力
装置と、この入力装置により入力された切曲り限界値や
所定の設定値を記憶するメモリと、前記演算部により得
られた予想切曲り量と前記切曲り限界値及び所定の設定
値を比較して予想切曲り量が切曲り限界値より大のとき
に切断加工を停止すると共に、上記予想切曲り量が上記
限界値より小さく、且つ所定の設定値より大のときに前
記鋸刃の切込速度および／又は鋸刃速度を１回又は繰り
返し低下させて切断加工を続行すべく比較判断比較判断
装置と、この比較判断装置からの指令により切り込み速
度を変化すべく指令する切込速度制御部および／又は前
記比較判断装置からの指令により鋸刃速度を変化すべく
指令する鋸刃速度制御部と、を備えてなることを特徴と
するものである。According to a fifth aspect of the present invention, there is provided a control apparatus for a sawing machine according to the present invention for controlling a bending generated when a workpiece is cut by a saw blade. A saw blade displacement amount detecting device for detecting a displacement amount of a cutting edge, a cut edge bending detecting device for measuring a cut surface of a cut product and detecting an actual cutting amount, and the saw blade displacement amount detecting device. The calculated value of the amount of bending of the saw blade is calculated from the amount of displacement detected by the device, and the actual amount of bending and the product obtained by the saw blade displacement detecting device in the product obtained by the cut edge detecting device. A calculating unit that reflects a difference between the calculated value of the amount of bending at the time of cutting and the calculated value of the amount of bending of the saw blade during the cutting to convert the difference into an expected amount of bending at the saw blade during the cutting; And the bending, which is the limit of the amount of bending allowable in the cutting process. An input device for inputting a boundary value or a predetermined setting value, a memory for storing a turning limit value or a predetermined setting value input by the input device, an expected bending amount obtained by the calculation unit, When the expected bending amount is larger than the bending limit value by comparing the bending limit value and the predetermined setting value, the cutting process is stopped, and the expected bending amount is smaller than the limit value and the predetermined setting value is set. When it is larger, the cutting speed of the saw blade and / or the saw blade speed is reduced once or repeatedly to continue the cutting process, and the cutting speed is reduced by a command from the comparing / judging device. A cutting speed control unit that instructs to change the cutting speed and / or a saw blade speed control unit that instructs to change the saw blade speed in accordance with a command from the comparison and determination device.
【００２２】したがって、請求項３又は４記載の作用と
同様であり、切断済みの製品の切断面を測定することに
より実際の切曲り量を検出し、この実際の切曲り量とこ
の製品の切断加工時における鋸刃の切曲りの変位量から
求めた切曲り量の演算値との差違を考慮して、この差違
が現在切断加工中の鋸刃の切曲り量の演算値が簡単に反
映されて正確な予想切曲り量に換算されるので、より実
際に近い予想切曲り量が切断加工中に刻々オンタイムで
得られる。Therefore, the operation is the same as that of claim 3 or 4, wherein the actual bending amount is detected by measuring the cut surface of the cut product, and the actual bending amount and the cutting of the product are measured. Considering the difference from the calculated value of the amount of bending calculated from the amount of displacement of the bending of the saw blade during processing, this difference is easily reflected in the calculated value of the amount of bending of the saw blade currently being cut. Is converted into an accurate expected bending amount, so that a more realistic expected bending amount can be obtained on-time every time during cutting.
【００２３】また、正確な情報を基にして切曲り量の設
定値に対する測定値が所定以上になったら切り込み速度
および鋸刃速度の両者あるいはいずれか一方を繰り返し
低下させて切断加工が続行されるので、適切に切曲り量
の増加が抑えられる。Further, when the measured value for the set value of the bending amount based on the accurate information becomes a predetermined value or more, the cutting processing is continued by repeatedly decreasing the cutting speed and / or the saw blade speed. Therefore, an increase in the amount of bending can be appropriately suppressed.
【００２４】[0024]
【発明の実施の形態】以下、この発明の実施の形態を図
面に基づいて詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【００２５】鋸盤の切断加工においては、一般的に鋸刃
には切削開始直後から多少の切曲りの傾向が発生し、鋸
刃や被削材のほんの少しのアンバランスからどちらかの
方向へ曲がろうとする。これに対し、鋸刃の張力で曲が
りを元に戻そうとする力が発生し、前述の曲がろうとす
る力と戻そうとする力が釣り合った状態で切削が進行す
ると考えられる。In the cutting of a sawing machine, generally, the saw blade tends to be slightly bent immediately after the start of cutting, and a slight unbalance of the saw blade or the work material occurs in either direction. Try to turn. On the other hand, it is considered that a force for returning the bend is generated by the tension of the saw blade, and the cutting proceeds in a state where the above-described force for the bend is balanced with the force for the return.
【００２６】この微妙なバランス関係は、歯先磨耗の進
行に伴い、切削抵抗の増加や磨耗のアンバランスによっ
て発生する力が、鋸刃を真っ直ぐにさせる力よりも大き
くなるに従ってくずれて、切曲り量が次第に増加する。
そして、この切曲り量が限界値を超えると、鋸刃の寿命
と判断されることになる。This delicate balance relationship is such that as the wear of the tooth tips progresses, the force generated by the increase in cutting resistance and the imbalance of wear becomes more distorted as the force for straightening the saw blade is broken, and The amount increases gradually.
When the amount of bending exceeds the limit value, the life of the saw blade is determined.
【００２７】従って、切削抵抗や磨耗のアンバランスに
よって発生する力を減少させてやれば切曲り量を減少す
るので、鋸刃速度や切り込み速度を緩和させることによ
り切曲り量を減少させることができる。Therefore, if the force generated due to the unbalance between the cutting resistance and the wear is reduced, the amount of bending is reduced. Therefore, the amount of bending can be reduced by relaxing the saw blade speed and the cutting speed. .
【００２８】そこで、切曲り量を情報として、切削条件
である鋸刃速度及び切り込み速度を制御することにより
切曲りの発生を抑え、鋸刃の寿命を向上させることが可
能になる。Therefore, by controlling the saw blade speed and the cutting speed, which are the cutting conditions, using the amount of bending as information, it is possible to suppress the occurrence of bending and improve the life of the saw blade.
【００２９】図１には、この発明に係る鋸盤としての例
えば帯鋸盤１の制御装置３が示されている。この制御装
置３では、中央処理装置であるＣＰＵ５に切曲り限界値
や、所定の設定値の比率や、切曲り限界に対応する切断
面積として設定されている設定切断面積等の種々のデー
タをデータベースとして入力するための入力装置７及び
表示装置９と、本発明の主要部である被削材断面の切曲
り量を検出するための切曲り検出装置１１の一部を構成
する鋸刃変位量検出装置１３が接続されている。この鋸
刃変位量検出装置１３は帯鋸盤１に設けられていて鋸刃
ＢＳの切曲りの変位量を測定するためのものである。FIG. 1 shows a control device 3 of, for example, a band saw machine 1 as a saw machine according to the present invention. In the control device 3, various data such as a turning limit value, a ratio of a predetermined set value, and a set cutting area set as a cutting area corresponding to the turning limit are stored in a central processing unit (CPU) 5 in a database. Input device 7 and display device 9 for inputting as an input, and saw blade displacement amount detection which constitutes a part of a bend detection device 11 for detecting a bend amount of a cross section of a work material which is a main part of the present invention Device 13 is connected. The saw blade displacement detector 13 is provided on the band saw machine 1 and measures the displacement of the cutting of the saw blade BS.
【００３０】なお、本発明の切曲り検出装置１１として
は、上記の鋸刃変位量検出装置１３と、帯鋸刃ＢＳによ
り切断加工済みの被削材Ｗの切断面の凹凸を測定するこ
とにより実際の鋸刃ＢＳの切曲り量及び切曲り状態を検
出する切口切曲り検出装置１５と、制御装置３に接続さ
れているものでより一層精確な切曲り量を演算するため
の演算部１７と、から構成されている。The bending detecting device 11 of the present invention is realized by measuring the unevenness of the cut surface of the workpiece W cut by the band saw blade BS and the saw blade displacement detecting device 13 described above. A cut edge detection device 15 for detecting the amount of bending and the bending state of the saw blade BS, and a calculation unit 17 connected to the control device 3 for calculating a more accurate bending amount, It is composed of
【００３１】ここで、帯鋸盤１はすでによく知られてい
るものなので説明を省略する。Here, the band saw machine 1 is already well known, and the description is omitted.
【００３２】また、鋸刃変位量検出装置１３としては、
例えば特開平１−１０９０１９号公報や、実開平２−７
９１５号公報等に示されているようにすでに既知のもの
で、例えば図２に示されているように２つのガイド部材
１９間で帯鋸刃ＢＳに切曲りが発生すると、帯鋸刃ＢＳ
が一点鎖線で示される正規の位置より変位する。帯鋸刃
ＢＳの胴部に押圧・接触するローラや接触子の移動量を
測定して鋸刃ＢＳの切曲りの変位量△ｘが検出される。As the saw blade displacement amount detecting device 13,
For example, Japanese Patent Laid-Open Publication No. 1-109019 and Japanese Utility Model Laid-Open Publication No.
For example, as shown in Japanese Patent Application Laid-Open No. 915/915, if the band saw blade BS bends between the two guide members 19 as shown in FIG.
Is displaced from the normal position indicated by the dashed line. The amount of movement of the roller or contact that presses and contacts the body of the band saw blade BS is measured, and the amount of displacement △ x of the bending of the saw blade BS is detected.
【００３３】切曲りの最大は図２において二点鎖線で示
されているように被削材Ｗの中心部で最大になるという
想定の基に変位量△ｘから演算により被削材Ｗの中心で
発生している切曲がり量の演算値がＣＰＵ５に接続され
ている演算部１７により算出される。As shown by a two-dot chain line in FIG. 2, the maximum of the bending is calculated from the displacement Δx based on the assumption that the maximum is at the center of the workpiece W. The calculated value of the amount of bending generated in the above is calculated by the calculation unit 17 connected to the CPU 5.
【００３４】ちなみに、図２において一方のガイド部材
１９から変位測定位置までの距離を△Ｌ（定数）とし、
前記ガイド部材１９から被削材Ｗの中心までの距離をＬ
とし、鋸刃ＢＳの切曲りの変位量を△ｘとすると、切曲
り量Ｘは、Ｘ＝△ｘ・Ｌ／△Ｌとなる。Incidentally, in FIG. 2, the distance from one of the guide members 19 to the displacement measurement position is represented by ΔL (constant).
The distance from the guide member 19 to the center of the workpiece W is represented by L
Assuming that the displacement of the bending of the saw blade BS is Δx, the bending X is X = Ｘx · L / △ L.
【００３５】本発明の切曲り検出装置１１の一部を構成
する切口切曲り検出装置１５としては、図３および図４
に示されているように移動量検出装置２１と切曲り検出
器２３とから構成されている。FIGS. 3 and 4 show a cut-off bend detecting device 15 constituting a part of the bend detecting device 11 of the present invention.
As shown in FIG. 2, the moving amount detecting device 21 and the bending detector 23 are provided.
【００３６】切口切曲り検出装置１５は、図３において
距離Ａで示されているように所定の位置までフロントバ
イス２５にて製品ＷＳが送り出され、この製品ＷＳの切
断面（切口）を検出でき、且つフロントバイス２５が製
品を送り出すときに邪魔にならないような待避位置に設
けられている。The cut and bend detecting device 15 can send out the product WS to the predetermined position as shown by the distance A in FIG. 3 by the front vise 25 and detect the cut surface (cut) of the product WS. In addition, the front vise 25 is provided at a retracted position so as not to be in the way when the product is sent out.
【００３７】切曲り検出器２３は１個又は複数個Ｌ形状
をした支持部材２７の垂直部に埋設されている。この切
曲り検出器２３としては例えばリニアセンサであり、こ
のリニアセンサは、センサと製品との切断面との距離を
正確に測定するもので、レーザを利用するもの、超音
波、近接タイプのものとか、直接、接触させて計測する
ものなど、何でも良く機種を限定するものではない。い
ずれもアナログ出力でセンサとの距離に比例した電流
（電圧）が出力される。The bending detector 23 is buried in a vertical portion of one or a plurality of L-shaped support members 27. The bending detector 23 is, for example, a linear sensor. This linear sensor accurately measures the distance between the sensor and the cut surface of the product, and uses a laser, an ultrasonic wave, and a proximity type. Anything, such as direct contact measurement, does not limit the model. In each case, a current (voltage) proportional to the distance to the sensor is output as an analog output.
【００３８】なお、切曲り検出器２３の数は多ければそ
れだけより多くの情報が得られるが、本実施の形態では
図４に示されているように４個の切曲り検出器２３ａ，
２３ｂ，２３ｃ，２３ｄが所定のピッチで設けられてい
る。Although more information can be obtained as the number of the bend detectors 23 increases, in this embodiment, as shown in FIG. 4, four bend detectors 23a, 23a,
23b, 23c and 23d are provided at a predetermined pitch.
【００３９】支持部材２７は、例えばレール２９に移動
自在に設けられており、支持部材２７の片端に連結した
シリンダ３１の流体圧作動により図４において左方向へ
前進し、支持部材２７に埋設された複数個の検出器２３
ａ〜２３ｄにて製品ＷＳの切断面が検出される。The support member 27 is movably provided on, for example, a rail 29 and advances leftward in FIG. 4 by the hydraulic pressure of a cylinder 31 connected to one end of the support member 27, and is embedded in the support member 27. Multiple detectors 23
The cut surface of the product WS is detected in a to 23d.
【００４０】移動量検出装置２１は、支持部材２７に設
けられていて、その構成はすでに公知であり、例えばエ
ンコーダ３３とラック３５、ピニオン３７とで構成され
ている。なお、移動量検出装置２１はリニアマグネット
センサ等でも構わない。The moving amount detecting device 21 is provided on the support member 27, and its structure is already known. For example, the moving amount detecting device 21 includes an encoder 33, a rack 35, and a pinion 37. Note that the movement amount detection device 21 may be a linear magnet sensor or the like.
【００４１】なお、切曲り検出器２３の検出精度を上げ
るために、切断後、製品ＷＳの切断面に切粉が付着しな
いよう、切断後切削油等をかけて切粉を取り除くような
手段を備えておく必要がある。In order to increase the detection accuracy of the bend detector 23, a means for removing chips by applying a cutting oil or the like after cutting so that chips do not adhere to the cut surface of the product WS after cutting. You need to be prepared.
【００４２】上記構成により、切断した製品ＷＳはフロ
ントバイス２５にてＡ寸法離れた所定の位置へ送り出さ
れる。この所定の位置とは、製品ＷＳの切断面と切曲り
検出器２３の検出面との距離が切曲りを考慮に入れて例
えば３mm程度とするのが最良であり、切断位置は一定の
ためフロントバイス２５で送り出す位置をいつも同じに
しておくと、切断面である製品ＷＳの左側は常に所定の
位置になる。With the above configuration, the cut product WS is sent out by the front vise 25 to a predetermined position separated by A dimension. The predetermined position is best when the distance between the cut surface of the product WS and the detection surface of the bend detector 23 is, for example, about 3 mm in consideration of the bend. If the position to be sent out by the vise 25 is always the same, the left side of the product WS, which is the cut surface, is always at a predetermined position.
【００４３】切口切曲り検出装置１５がシリンダ３１に
より移動されると、切曲り検出器２３a 〜２３d の検出
出力と、支持部材２７の移動位置が移動量検出装置２１
により検出されメモリ３９に記憶される。なお、切曲り
検出器２３a 〜２３d の出力は、Ａ／Ｄ変換して切曲り
検出器２３a 〜２３d と製品ＷＳの切断面との距離が記
憶される。The cut when switching bend detection device 15 is moved by the cylinder 31, the detection output of the switching curved detector 23 a ~ 23 d, the movement position displacement detection apparatus of the supporting member 27 21
And is stored in the memory 39. The outputs of the bend detectors 23 a to 23 d are A / D converted and the distance between the bend detectors 23 a to 23 d and the cut surface of the product WS is stored.
【００４４】上記の情報を立体的にプロットすると、図
６に示されているように各切曲り検出器２３a 〜２３d
ごとに実際の切曲り量と、切断面がどういう形状になっ
ているか換言すれば切曲りの状態を知ることができる。
また、図６において上下方向のＹ軸上に各切曲り検出器
２３a 〜２３d との交点を結ぶと、切曲り量と切曲りの
状態も知ることができる。例えば図７に示されているよ
うにＮｏ．４のＹ軸上の切曲りの状態は図のようにな
る。When the above information is plotted three-dimensionally, as shown in FIG. 6, each of the bending detectors 23 a to 23 d
In each case, the actual amount of bending and the shape of the cut surface, in other words, the state of the bending can be known.
Further, when connecting the intersection of the detector 23 a ~ 23 d bending each of the cut on the vertical direction of the Y axis in FIG. 6, it is possible to know also the switching curve amount and switching bending state. For example, as shown in FIG. 4 shows the state of the bending on the Y axis.
【００４５】上述したように実際の切曲り量と切曲り状
態を正確に知ることができる。本実施の形態では４個の
切曲り検出器２３が設けられているが、通常切曲りは中
央部付近が大きく曲がるので切曲り検出器２３を１個設
け、製品ＷＳの中央部を測定すればほぼ妥当な結果を得
られるが、より高い精度を得るためには上記のように複
数個の切曲り検出器２３を設けることが望ましい。As described above, the actual turning amount and the turning state can be accurately known. In the present embodiment, four bend detectors 23 are provided. However, since one bend is generally bent near the center, one bend detector 23 is provided, and if the center of the product WS is measured, Although an almost reasonable result can be obtained, it is desirable to provide a plurality of bending detectors 23 as described above in order to obtain higher accuracy.
【００４６】なお、上述した移動量検出装置２１がなく
とも実際の切曲り量を測定することはできる。この場合
は図５に示されるように各切曲り検出器２３a 〜２３d
ごとに凹凸の差の最大値のみを測定し、この４つの最大
値のデータのうちで最大の数値を切曲り量とする。例え
ば図５においては切曲り検出器２３a では最大値Ｘ1、
切曲り検出器２３d では最大値Ｘ2 、切曲り検出器２３
c では最大値Ｘ3 、切曲り検出器２３d では最大値Ｘ4
とし、Ｘ4 ＜Ｘ1 ＜Ｘ3 ＜Ｘ2 である場合は切曲り量は
Ｘ2 となる。It is to be noted that the actual bending amount can be measured without the movement amount detecting device 21 described above. Detector 23 the cut-bend as this case is shown in FIG. 5 a ~ 23 d
Only the maximum value of the difference between the concavities and convexities is measured, and the maximum numerical value among the data of the four maximum values is defined as the amount of bending. The maximum value X 1 in switching curved detector 23 a in FIG. 5, for example,
In the turning detector 23 d , the maximum value X 2 , the turning detector 23
c is the maximum value X 3 , and the bending detector 23 d is the maximum value X 4
When X 4 <X 1 <X 3 <X 2 , the amount of bending is X 2 .
【００４７】以上のように切口切曲り検出装置１５によ
り、切断済みの製品ＷＳの切断面の切曲り量が正確に検
出されるので、この実際の切曲り量とこの製品の切断加
工時における鋸刃の切曲りの変位量から求めた切曲り量
の演算値との差違を考慮して、この差違を現在切断加工
中の鋸刃ＢＳの切曲り検出に反映することにより、現在
切断加工中の被削材Ｗに対してより正確な切曲り量を予
想することができる。As described above, since the cut amount of the cut surface of the cut product WS is accurately detected by the cut cut detection device 15, the actual cut amount and the sawing amount at the time of cutting the product WS are determined. Considering the difference from the calculated value of the bending amount obtained from the displacement amount of the blade bending, and reflecting this difference on the detection of the bending of the saw blade BS currently being cut, the current cutting process is performed. It is possible to predict a more accurate bending amount of the work material W.
【００４８】例えば、切口切曲り検出装置１５により検
出された切断済みの製品ＷＳの切断面の切曲り量をＸn
とし、この切口切曲り検出装置１５により検出される製
品ＷＳが切断加工される時に鋸刃変位量検出装置１３で
得られた切曲り量の演算値をβn とし、現在切断加工中
の被削材Ｗに対して鋸刃変位量検出装置１３で得られた
切曲り量の演算値をβn+1 とすると、現在切断加工中の
被削材Ｗに対して予想される予想切曲り量αn+1 は、α
n+1 ＝βn+1 ・Ｘn ／βn となる。For example, the cut amount of the cut surface of the cut product WS detected by the cut end detection device 15 is represented by X n
The calculated value of the amount of bending obtained by the saw blade displacement detector 13 when the product WS detected by the cut edge detector 15 is cut is denoted by β n, and the workpiece currently being cut is processed. Assuming that the calculated value of the bending amount of the workpiece W obtained by the saw blade displacement detector 13 is β n + 1 , the expected bending amount α expected for the workpiece W currently being cut. n + 1 is α
a n + 1 = β n + 1 · X n / β n.
【００４９】以上のように切曲り量の演算値βn+1 が上
記の演算式に基づいて演算部１７で簡単に予想切曲り量
αn+1 に換算され、より実際に近い切曲り量が切断加工
中に刻々オンタイムで得られる。この情報を元に切断加
工条件を変更するなどの対応をすることによって不良品
を出さずに効率よく切断を続行することができる。As described above, the calculated value β n + 1 of the amount of bending is easily converted into the expected amount of bending α n + 1 by the calculating unit 17 based on the above-mentioned equation, and the amount of bending closer to the actual value is obtained. Is obtained on-time during the cutting process. By taking measures such as changing the cutting conditions based on this information, it is possible to continue cutting efficiently without producing defective products.
【００５０】なお、前述した演算部１７は切曲りの限界
値に対して所定の設定値を設定することができる。ま
た、ＣＰＵ５には、演算部１７で設定された切曲り設定
値等の種々のデータを記憶しておくメモリ３９と、上述
した予想切曲り量αn+1 が切曲り限界値より大のときに
切断加工を停止すると共に、予想切曲り量αn+1 が上記
限界値より小さく、且つ所定の設定値より大のときに鋸
刃ＢＳの切込速度および／又は鋸刃速度を１回又は繰り
返し低下させて切断加工を続行すべく比較判断する比較
判断装置４１と、この比較判断装置４１による結果から
切り込み速度を算出して切り込み速度を帯鋸盤１に指令
して例えば流量制御弁やサーボモータＭ等を制御する切
り込み速度制御部４３と、帯鋸刃ＢＳの走行速度を算出
して制御する鋸刃速度制御部４５等が接続されている。The arithmetic unit 17 can set a predetermined set value for the limit value of the bending. Further, the CPU 5 has a memory 39 for storing various data such as a turning set value set by the arithmetic unit 17 and a memory when the predicted turning amount α n + 1 is larger than the turning limit value. And when the expected bending amount α n + 1 is smaller than the limit value and larger than a predetermined value, the cutting speed and / or the saw speed of the saw blade BS is increased once or A comparing and judging device 41 for repeatedly judging so as to continue cutting by lowering the cutting speed, calculating a cutting speed from the result of the comparing and judging device 41 and instructing the cutting speed to the band saw 1, for example, a flow control valve or a servo motor; A cutting speed control unit 43 for controlling M and the like, a saw blade speed control unit 45 for calculating and controlling the traveling speed of the band saw blade BS, and the like are connected.
【００５１】切曲り限界値や所定の設定値についてより
詳しく説明すると、例えば切曲り許容量をγとし、切曲
り限界値が切曲り許容量γの８５％とし、所定の設定値
が切曲り許容量γの７０％とすると、切曲り量予想α
n+1 ≦許容量γの７０％の場合はそのまま切断加工を続
行し、許容量γの７０％＜予想切曲り量αn+1 ≦切曲り
許容量γの８５％の場合は切曲りの発生を少なくするよ
う切込速度および／又は鋸刃速度を変更し、予想切曲り
量αn+1 ＞切曲り許容量γの８５％の場合は不良品の発
生が予想されるので次の切断を中止する。The turning limit value and the predetermined set value will be described in more detail. For example, the allowable bending amount is γ, the turning limit value is 85% of the allowable bending amount γ, and the predetermined set value is the allowable turning amount. Assuming 70% of the capacity γ, the expected bending amount α
If n + 1 ≦ 70% of the allowable amount γ, the cutting process is continued, and if 70% of the allowable amount γ <expected bending amount α n + 1 ≦ 85% of the allowable bending amount γ, the cutting process is continued. The cutting speed and / or the saw blade speed are changed so as to reduce the occurrence. If the expected bending amount α n + 1 > 85% of the allowable bending amount γ, defective products are expected to occur, so the next cutting is performed. To stop.
【００５２】以上のことから、より正確な予想切曲り量
αn+1 が切曲り限界値や所定の設定値に対して大小を比
較して切り込み速度及び鋸刃速度を繰り返し低下させた
り、そのまま続行させたり、あるいは切断加工を中止さ
せたりするので、より正確に切曲り量の増加を抑えるこ
とができ、鋸刃ＢＳが摩耗する前に切り込み速度及び鋸
刃速度を低下させるので品質の向上を図ることができる
と共に、鋸刃ＢＳの寿命を延ばすことができる。From the above, the more accurate predicted bending amount α n + 1 is compared with the bending limit value or a predetermined set value, and the cutting speed and the saw blade speed are repeatedly reduced, or as it is. Since the cutting is continued or the cutting process is stopped, the increase in the amount of bending can be suppressed more accurately, and the cutting speed and the saw blade speed are reduced before the saw blade BS wears, thereby improving the quality. In addition, the life of the saw blade BS can be extended.
【００５３】なお、この発明は前述の実施の形態に限定
されることなく、適宜な変更を行うことにより、その他
の態様で実施し得るものである。すなわち、前述の実施
の形態においては、設定値として一定の値を使用した
が、特に超硬帯鋸盤の場合には切削条件を緩和させる方
向に設定すると切曲り量は顕著に減少する傾向にあるた
め、限界値以下の範囲で設定値を何回か変化させること
によりさらに鋸刃ＢＳ寿命を向上させることが可能にな
る。The present invention is not limited to the above-described embodiment, but can be embodied in other modes by making appropriate changes. That is, in the above-described embodiment, a fixed value is used as the set value. However, particularly in the case of a cemented carbide sawing machine, when the cutting condition is set in a direction in which the cutting conditions are relaxed, the amount of bending tends to be significantly reduced. Therefore, the life of the saw blade BS can be further improved by changing the set value several times within the range below the limit value.
【００５４】また、前述の実施の形態においては、切曲
りの許容量の８５％以下で７０％を越えたら切り込み速
度や鋸刃速度の低下等を行ったが、上記の値に限らず別
の値とすることができるし、適宜変化させることもでき
る。In the above-described embodiment, the cutting speed and the saw blade speed are reduced if the allowable bending amount is 85% or less and exceeds 70%. It can be a value or can be changed as appropriate.
【００５５】さらに、前述した鋸刃変位量検出装置１３
において、鋸刃ＢＳの移動量を変位量として検出するの
ではなく、鋸刃ＢＳの負荷（主分力、背分力）を変位量
として検出して、負荷を減少させるようにして間接的に
切曲り量を抑制するようにすることもできる。Further, the above-described saw blade displacement detecting device 13
In the above, instead of detecting the movement amount of the saw blade BS as a displacement amount, the load (main component force, back component force) of the saw blade BS is detected as a displacement amount, and the load is reduced to indirectly detect the load. The amount of bending can be suppressed.
【００５６】また、ある切削条件によっては、切り込み
速度を変化させずに鋸刃速度をアップすることで１刃当
たりの切り込み量（負荷）を減少させることができるの
で、加工速度を変化させることなく切曲り量を抑制する
こともできる。Further, depending on certain cutting conditions, the cutting amount (load) per tooth can be reduced by increasing the saw blade speed without changing the cutting speed, so that the machining speed is not changed. The amount of bending can also be suppressed.
【００５７】[0057]
【発明の効果】以上のごとき発明の実施の形態の説明か
ら理解されるように、請求項１の発明によれば、切断済
みの製品の切断面を測定することにより実際の切曲り量
を検出し、この実際の切曲り量とこの製品の切断加工時
における鋸刃の切曲りの変位量から求めた切曲り量の演
算値との差違を考慮して、この差違が現在切断加工中の
鋸刃の切曲り量の演算値が簡単に反映されて正確な予想
切曲り量に換算するので、より実際に近い予想切曲り量
を切断加工中に刻々オンタイムで得ることができる。As will be understood from the above description of the embodiments of the invention, according to the first aspect of the present invention, the actual amount of bending is detected by measuring the cut surface of the cut product. However, taking into account the difference between the actual amount of bending and the calculated value of the amount of bending determined from the amount of bending of the saw blade during the cutting of this product, this difference is Since the calculated value of the blade bending amount is easily reflected and converted into an accurate predicted bending amount, a more realistic predicted bending amount can be obtained on-time every time during cutting.
【００５８】この情報を基にして切断加工条件を変更す
るなどの対応をすることによって不良品を出さずに効率
よく切断加工を続行できる。By taking measures such as changing the cutting conditions based on this information, the cutting can be efficiently continued without producing defective products.
【００５９】請求項２の発明によれば、請求項１記載の
効果と同様であり、切断済みの製品の切断面を測定する
ことにより実際の切曲り量を検出し、この実際の切曲り
量とこの製品の切断加工時における鋸刃の切曲りの変位
量から求めた切曲り量の演算値との差違を考慮して、こ
の差違が現在切断加工中の鋸刃の切曲り量の演算値が簡
単に反映されて正確な予想切曲り量に換算するので、よ
り実際に近い予想切曲り量を切断加工中に刻々オンタイ
ムで得ることができる。According to the second aspect of the present invention, the effect is the same as that of the first aspect, and by measuring the cut surface of the cut product, the actual bending amount is detected, and the actual bending amount is measured. Considering the difference between the calculated value of the bending amount of the saw blade and the calculated value of the bending amount obtained from the displacement amount of the bending of the saw blade during the cutting process of this product, this difference is the calculated value of the bending amount of the saw blade currently being cut. Is easily reflected and converted into an accurate predicted bending amount, so that a predicted bending amount closer to the actual one can be obtained on-time during cutting.
【００６０】この情報を基にして切断加工条件を変更す
るなどの対応をすることによって不良品を出さずに効率
よく切断加工を続行できる。By taking measures such as changing the cutting conditions based on this information, the cutting can be efficiently continued without producing defective products.
【００６１】請求項３の発明によれば、切断済みの製品
の切断面を測定することにより実際の切曲り量を検出
し、この実際の切曲り量とこの製品の切断加工時におけ
る鋸刃の切曲りの変位量から求めた切曲り量の演算値と
の差違を考慮して、この差違が現在切断加工中の鋸刃の
切曲り量の演算値が簡単に反映されて正確な予想切曲り
量に換算するので、より実際に近い予想切曲り量を切断
加工中に刻々オンタイムで得ることができる。According to the third aspect of the present invention, the actual bending amount is detected by measuring the cut surface of the cut product, and the actual bending amount and the saw blade at the time of cutting the product are measured. Considering the difference from the calculated value of the amount of bending calculated from the amount of displacement of the bending, this difference is easily reflected in the calculated value of the amount of bending of the saw blade currently being cut, and the accurate predicted bending is calculated. Since it is converted into an amount, a predicted bending amount that is closer to actual can be obtained on-time every time during the cutting process.
【００６２】また、正確な予想切曲り量が切曲り量の設
定値を越えたら切り込み速度および鋸刃速度の両者ある
いはいずれか一方を低下させて切断加工を続行するの
で、適切に切曲り量の増加を抑えることができる。Further, when the accurate predicted bending amount exceeds the set value of the bending amount, the cutting process is continued by lowering the cutting speed and / or the saw blade speed, so that the cutting amount is appropriately adjusted. The increase can be suppressed.
【００６３】請求項４の発明によれば、切断済みの製品
の切断面を測定することにより実際の切曲り量を検出
し、この実際の切曲り量とこの製品の切断加工時におけ
る鋸刃の切曲りの変位量から求めた切曲り量の演算値と
の差違を考慮して、この差違が現在切断加工中の鋸刃の
切曲り量の演算値が簡単に反映されて正確な予想切曲り
量に換算するので、より実際に近い予想切曲り量を切断
加工中に刻々オンタイムで得ることができる。According to the fourth aspect of the present invention, the actual bending amount is detected by measuring the cut surface of the cut product, and the actual bending amount and the saw blade at the time of cutting the product are measured. Considering the difference from the calculated value of the amount of bending calculated from the amount of displacement of the bending, this difference is easily reflected in the calculated value of the amount of bending of the saw blade currently being cut, and the accurate predicted bending is calculated. Since it is converted into an amount, a predicted bending amount that is closer to actual can be obtained on-time every time during the cutting process.
【００６４】また、正確な予想切曲り量が切曲り量の設
定値を越えたら切り込み速度および鋸刃速度の両者ある
いはいずれか一方を繰り返し低下させて切断加工を続行
するので、適切に切曲り量の増加を抑えることができ
る。Further, if the accurate predicted bending amount exceeds the set value of the bending amount, the cutting process is continued by repeatedly lowering the cutting speed and / or the saw blade speed. Increase can be suppressed.
【００６５】請求項５の発明によれば、請求項３又は４
記載の効果と同様であり、切断済みの製品の切断面を測
定することにより実際の切曲り量を検出し、この実際の
切曲り量とこの製品の切断加工時における鋸刃の切曲り
の変位量から求めた切曲り量の演算値との差違を考慮し
て、この差違が現在切断加工中の鋸刃の切曲り量の演算
値が簡単に反映されて正確な予想切曲り量に換算するの
で、より実際に近い予想切曲り量を切断加工中に刻々オ
ンタイムで得ることができる。According to the invention of claim 5, claim 3 or 4
Similar to the effect described, the actual amount of bending is detected by measuring the cut surface of the cut product, and the actual amount of bending and the displacement of the bending of the saw blade during cutting of this product Considering the difference from the calculated value of the amount of bending calculated from the amount, this difference is easily reflected in the calculated value of the amount of bending of the saw blade currently being cut and converted into an accurate expected amount of bending. Therefore, a predicted bending amount that is closer to the actual one can be obtained on-time during the cutting process.
【００６６】また、正確な予想切曲り量が切曲り量の設
定値を越えたら切り込み速度および鋸刃速度の両者ある
いはいずれか一方を１回又は繰り返し低下させて切断加
工を続行するので、適切に切曲り量の増加を抑えること
ができる。Further, if the accurate predicted bending amount exceeds the set value of the bending amount, the cutting process is continued by reducing the cutting speed and / or the saw blade speed once or repeatedly and continuing. An increase in the amount of bending can be suppressed.
【図１】本発明の実施の形態における鋸盤の制御装置を
示すブロック図である。FIG. 1 is a block diagram illustrating a control device for a sawing machine according to an embodiment of the present invention.
【図２】本発明の実施の形態を示すもので、鋸刃変位量
検出装置による変位量の検出方法の説明図である。FIG. 2, showing an embodiment of the present invention, is an explanatory view of a method for detecting a displacement amount by a saw blade displacement amount detection device.
【図３】本発明の実施の形態を示すもので、切口切曲り
検出装置の平面図である。FIG. 3, showing an embodiment of the present invention, is a plan view of an incision bend detecting device.
【図４】図３の矢視ＩＶ−ＩＶ線の切口切曲り検出装置
の側面図である。FIG. 4 is a side view of the cut-off bend detecting device taken along the line IV-IV in FIG. 3;
【図５】移動量検出装置を用いずに製品の切断面から切
曲り量を検出するときの説明図である。FIG. 5 is an explanatory diagram for detecting a bending amount from a cut surface of a product without using a movement amount detection device.
【図６】移動量検出装置を用いて製品の切断面から切曲
り量を検出するときプロット図である。FIG. 6 is a plot diagram when a bending amount is detected from a cut surface of a product using a movement amount detection device.
【図７】図６のＮｏ．４のＹ軸における切り口の断面図
である。FIG. FIG. 4 is a sectional view of a cut surface along the Y axis of FIG.
【図８】従来の鋸盤の切曲り検出装置の平面図である。FIG. 8 is a plan view of a conventional bending detection device for a sawing machine.
【図９】従来の鋸盤の切曲り検出装置の平面図である。FIG. 9 is a plan view of a conventional bending detection device for a sawing machine.
１ 帯鋸盤 ３ 制御装置 ５ ＣＰＵ ７ 入力装置 ９ 表示装置 １１ 切曲り検出装置 １３ 鋸刃変位量検出装置 １５ 切口切曲り検出装置 １７ 演算部 ２１ 移動量検出装置 ２３ 切曲り検出器 ３９ メモリ ４１ 比較判断装置 ４３ 切り込み速度制御部 ４５ 鋸刃速度制御部 DESCRIPTION OF SYMBOLS 1 Band sawing machine 3 Control device 5 CPU 7 Input device 9 Display device 11 Cut detection device 13 Saw blade displacement detection device 15 Cut cut detection device 17 Operation part 21 Moving amount detection device 23 Cut detection detector 39 Memory 41 Comparison judgment Device 43 Cutting speed control unit 45 Saw blade speed control unit
Claims (5)
生する切曲りを検出する鋸盤の切曲り検出方法におい
て、 切断済みの製品の切断面を測定することにより実際の切
曲り量を検出すると共にこの製品の切断加工時における
鋸刃の切曲りの変位量から求めた切曲り量の演算値を制
御装置のメモリに記憶せしめ、この製品における実際の
切曲り量と切断加工時の切曲り量の演算値との差違を前
記切断加工中の鋸刃の切曲りの変位量を検出して演算に
よって求められた切曲り量の演算値に反映して前記切断
加工中の鋸刃における予想切曲り量に換算せしめること
を特徴とする鋸盤の切曲り検出方法。In a method for detecting a bending of a sawing machine for detecting a bending generated when a work material is cut by a saw blade, an actual bending amount is measured by measuring a cut surface of a cut product. And the calculated value of the amount of bending determined from the amount of displacement of the cutting edge of the saw blade at the time of cutting of this product is stored in the memory of the control device. The difference between the calculated value of the amount of bending and the calculated value of the amount of bending determined by calculation by detecting the amount of displacement of the bending of the saw blade during the cutting is reflected in the saw blade during the cutting. A bending detection method for a sawing machine, characterized in that it is converted into an expected bending amount.
生する切曲りを検出する鋸盤の切曲り検出装置におい
て、 前記切断加工中の鋸刃の切曲りの変位量を検出する鋸刃
変位量検出装置と、切断加工済みの製品の切断面を測定
して実際の切曲り量を検出する切口切曲り検出装置と、
前記鋸刃変位量検出装置で検出した変位量から鋸刃の切
曲り量の演算値を算出すると共に前記切口切曲り検出装
置にて得た製品における実際の切曲り量と鋸刃変位量検
出装置にて得た前記製品の切断加工時の切曲り量の演算
値との差違を前記切断加工中の鋸刃の切曲り量の演算値
に反映して前記切断加工中の鋸刃における予想切曲り量
に換算せしめる演算部を備えた制御装置と、からなるこ
とを特徴とする鋸盤の切曲り検出装置。2. A saw detecting device for detecting a bending generated when a work material is cut by a saw blade, wherein the saw detects a displacement of the bending of the saw blade during the cutting process. A blade displacement amount detection device, and a cut edge detection device that measures a cut surface of a cut product to detect an actual amount of bending,
Calculating the calculated value of the amount of bending of the saw blade from the amount of displacement detected by the saw blade displacement amount detection device, and detecting the actual amount of bending and the saw blade displacement amount in the product obtained by the cut edge bending detection device Reflecting the difference between the calculated value of the amount of bending at the time of cutting of the product obtained in the above and the calculated value of the amount of bending of the saw blade during the cutting, the expected bending at the saw blade during the cutting. A control device having a calculation unit for converting the amount into a quantity, and a device for detecting a bending of a sawing machine.
生する切曲りを制御する鋸盤の制御方法において、 切断済みの製品の切断面を測定することにより実際の切
曲り量を検出すると共にこの製品の切断加工時における
鋸刃の切曲りの変位量から求めた切曲り量の演算値を制
御装置のメモリに記憶せしめ、この製品における実際の
切曲り量と切断加工時の切曲り量の演算値との差違を前
記切断加工中の鋸刃の切曲りの変位量を検出して演算に
よって求められた切曲り量の演算値に反映して前記切断
加工中の鋸刃における予想切曲り量に換算せしめ、 この換算して得た予想切曲り量が予め設定されている切
曲り限界値より大のときに切断加工を停止し、上記予想
切曲り量が上記限界値より小さく、且つ所定の設定値よ
り大のときに前記鋸刃の切込速度および／又は鋸刃速度
を低下させて切断加工を続行することを特徴とする鋸盤
の制御方法。3. A control method for a sawing machine for controlling a bending generated when a workpiece is cut by a saw blade, wherein an actual bending amount is detected by measuring a cut surface of a cut product. At the same time, the calculated value of the amount of bending determined from the displacement of the bending of the saw blade during the cutting of this product is stored in the memory of the control device, and the actual amount of bending of this product and the bending during the cutting are stored. The difference between the calculated value of the amount and the calculated value of the amount of bending determined by calculation by detecting the amount of displacement of the bending of the saw blade during the cutting process is reflected in the expected cutting of the saw blade during the cutting process. The cutting process is stopped when the expected bending amount obtained by the conversion is larger than a preset bending limit value, and the expected bending amount is smaller than the limit value, and When the value is greater than the specified value, the saw blade Sawing machine control method characterized by continuing the cut by reducing the speed and / or saw blade speed.
生する切曲りを制御する鋸盤の制御方法において、 切断済みの製品の切断面を測定することにより実際の切
曲り量を検出すると共にこの製品の切断加工時における
鋸刃の切曲りの変位量から求めた切曲り量の演算値を制
御装置のメモリに記憶せしめ、この製品における実際の
切曲り量と切断加工時の切曲り量の演算値との差違を前
記切断加工中の鋸刃の切曲りの変位量を検出して演算に
よって求められた切曲り量の演算値に反映して前記切断
加工中の鋸刃における予想切曲り量に換算せしめ、 この換算して得た予想切曲り量が予め設定されている切
曲り限界値より大のときに切断加工を停止し、上記予想
切曲り量が上記限界値より小さく、且つ所定の設定値よ
り大のときに前記鋸刃の切込速度および／又は鋸刃速度
を低下させて切断加工を続行し、 以後予想切曲り量が前記所定の設定値より大のときに前
記鋸刃の切込速度および／又は鋸刃速度を繰り返し低下
させて切断加工を続行することを特徴とする鋸盤の制御
方法。4. A control method for a sawing machine for controlling a bending generated when a work material is cut by a saw blade, wherein an actual bending amount is detected by measuring a cut surface of a cut product. At the same time, the calculated value of the amount of bending determined from the displacement of the bending of the saw blade during the cutting of this product is stored in the memory of the control device, and the actual amount of bending of this product and the bending during the cutting are stored. The difference between the calculated value of the amount and the calculated value of the amount of bending determined by calculation by detecting the amount of displacement of the bending of the saw blade during the cutting process is reflected in the expected cutting of the saw blade during the cutting process. The cutting process is stopped when the estimated bending amount obtained by this conversion is larger than a preset bending limit value, and the expected bending amount is smaller than the limit value, and When the value is greater than the specified value, the saw blade The cutting process is continued by reducing the speed and / or the saw blade speed, and thereafter, when the expected bending amount is larger than the predetermined set value, the cutting speed and / or the saw blade speed of the saw blade is repeatedly reduced. A sawing machine control method wherein cutting is continued by cutting.
生する切曲りを制御する鋸盤の制御装置において、 前記切断加工中の鋸刃の切曲りの変位量を検出する鋸刃
変位量検出装置と、切断加工済みの製品の切断面を測定
して実際の切曲り量を検出する切口切曲り検出装置と、
前記鋸刃変位量検出装置で検出した変位量から鋸刃の切
曲り量の演算値を算出すると共に前記切口切曲り検出装
置にて得た製品における実際の切曲り量と鋸刃変位量検
出装置にて得た前記製品の切断加工時の切曲り量の演算
値との差違を前記切断加工中の鋸刃の切曲り量の演算値
に反映して前記切断加工中の鋸刃における予想切曲り量
に換算せしめる演算部と、 前記切断加工において許容できる切曲り量の限界である
切曲り限界値や所定の設定値を入力する入力装置と、こ
の入力装置により入力された切曲り限界値や所定の設定
値を記憶するメモリと、前記演算部により得られた予想
切曲り量と前記切曲り限界値及び所定の設定値を比較し
て予想切曲り量が切曲り限界値より大のときに切断加工
を停止すると共に、上記予想切曲り量が上記限界値より
小さく、且つ所定の設定値より大のときに前記鋸刃の切
込速度および／又は鋸刃速度を１回又は繰り返し低下さ
せて切断加工を続行すべく比較判断比較判断装置と、こ
の比較判断装置からの指令により切り込み速度を変化す
べく指令する切込速度制御部および／又は前記比較判断
装置からの指令により鋸刃速度を変化すべく指令する鋸
刃速度制御部と、を備えてなることを特徴とする鋸盤の
制御装置。5. A control device for a sawing machine for controlling a bending generated when a work material is cut by a saw blade, wherein a saw blade displacement for detecting a displacement amount of the bending of the saw blade during the cutting process. An amount detection device, and a cut edge detection device that measures a cut surface of a cut product and detects an actual amount of bending,
Calculating the calculated value of the amount of bending of the saw blade from the amount of displacement detected by the saw blade displacement amount detection device, and detecting the actual amount of bending and the saw blade displacement amount in the product obtained by the cut edge bending detection device Reflecting the difference between the calculated value of the amount of bending at the time of cutting of the product obtained in the above and the calculated value of the amount of bending of the saw blade during the cutting, the expected bending at the saw blade during the cutting. An input unit for inputting a turning limit value or a predetermined set value which is a limit of an allowable bending amount in the cutting processing; a turning limit value or a predetermined value input by the input device; And a memory for storing the set value of, and comparing the expected bending amount obtained by the arithmetic unit with the bending limit value and a predetermined set value to cut when the expected bending amount is larger than the bending limit value. When machining is stopped, the expected bending When the cutting speed and / or the sawing speed of the saw blade is decreased once or repeatedly when the cutting speed is smaller than the threshold value and larger than a predetermined set value, the cutting is continued. A cutting speed control unit for instructing to change the cutting speed in accordance with a command from the comparison and judgment device and / or a saw blade speed control unit for instructing to change the saw blade speed in accordance with a command from the comparison and judgment device. A control device for a sawing machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17629398A JP3961119B2 (en) | 1998-06-23 | 1998-06-23 | Method and apparatus for detecting the bending of a saw, and method and apparatus for controlling a saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17629398A JP3961119B2 (en) | 1998-06-23 | 1998-06-23 | Method and apparatus for detecting the bending of a saw, and method and apparatus for controlling a saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000005927A true JP2000005927A (en) | 2000-01-11 |
| JP3961119B2 JP3961119B2 (en) | 2007-08-22 |
Family
ID=16011062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17629398A Expired - Fee Related JP3961119B2 (en) | 1998-06-23 | 1998-06-23 | Method and apparatus for detecting the bending of a saw, and method and apparatus for controlling a saw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3961119B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006218652A (en) * | 2005-02-08 | 2006-08-24 | Sumco Corp | Cutting method of single crystal ingot |
| CN114012916A (en) * | 2021-11-01 | 2022-02-08 | 青岛高测科技股份有限公司 | Cutting device of silicon rod cutting system and silicon rod cutting system |
| CN114589824A (en) * | 2021-11-01 | 2022-06-07 | 青岛高测科技股份有限公司 | Cutting device of silicon rod cutting system and silicon rod cutting system |
-
1998
- 1998-06-23 JP JP17629398A patent/JP3961119B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006218652A (en) * | 2005-02-08 | 2006-08-24 | Sumco Corp | Cutting method of single crystal ingot |
| JP4617910B2 (en) * | 2005-02-08 | 2011-01-26 | 株式会社Ｓｕｍｃｏ | Cutting method of single crystal ingot |
| CN114012916A (en) * | 2021-11-01 | 2022-02-08 | 青岛高测科技股份有限公司 | Cutting device of silicon rod cutting system and silicon rod cutting system |
| CN114589824A (en) * | 2021-11-01 | 2022-06-07 | 青岛高测科技股份有限公司 | Cutting device of silicon rod cutting system and silicon rod cutting system |
| CN114589824B (en) * | 2021-11-01 | 2024-02-02 | 青岛高测科技股份有限公司 | Cutting device of silicon rod cutting system and silicon rod cutting system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3961119B2 (en) | 2007-08-22 |
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