JPH08197330A - Control for sawing machine and controller thereof - Google Patents
Control for sawing machine and controller thereofInfo
- Publication number
- JPH08197330A JPH08197330A JP1294495A JP1294495A JPH08197330A JP H08197330 A JPH08197330 A JP H08197330A JP 1294495 A JP1294495 A JP 1294495A JP 1294495 A JP1294495 A JP 1294495A JP H08197330 A JPH08197330 A JP H08197330A
- Authority
- JP
- Japan
- Prior art keywords
- saw blade
- speed
- saw
- cutting
- moving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は鋸盤の制御方法および
その制御装置に係り、さらに詳しくは、鋸刃の走行速度
を変動させて騒音の低下を図ることのできる鋸盤の制御
方法およびその制御装置に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sawing machine control method and a control apparatus therefor, and more particularly, to a sawing machine control method capable of reducing noise by varying the traveling speed of a saw blade. The present invention relates to a control device.
【０００２】[0002]
【従来の技術】従来より、鋸盤においては、挟持固定さ
れたワークに対して鋸刃を回転または走行させることに
よりワークの切断を行う。この際、例えば帯鋸盤では、
ワークの材質，寸法，所要面粗さ等によって、鋸刃の歯
数と帯鋸刃の移動速度と、切込速度とに一定の推奨値が
設けられており、この推奨値で切断作業を行えは鋸刃の
寿命を長くし、騒音の発生の低く抑えられるとして、推
奨される一定の速度での切断が行われていた。2. Description of the Related Art Conventionally, in a saw machine, a work is cut by rotating or running a saw blade with respect to a work that is clamped and fixed. At this time, for example, with a band saw machine,
Depending on the work material, dimensions, required surface roughness, etc., there is a fixed recommended value for the number of teeth of the saw blade, the moving speed of the band saw blade, and the cutting speed. Cutting was carried out at the recommended constant speed because it prolongs the life of the saw blade and suppresses the generation of noise.
【０００３】しかし、帯鋸盤における切断作業を繰り返
すに従い、鋸刃の磨耗以外の理由で振動音が次第に増大
することが分かってきた。このため、特公昭５８−５２
７６９号公報に示されるように、鋸刃の走行速度を変化
させて騒音の低下を図ることが提案されている。However, it has been found that as the cutting work in the band saw machine is repeated, the vibration noise gradually increases for reasons other than wear of the saw blade. For this reason,
As disclosed in Japanese Patent No. 769, it has been proposed to reduce the noise by changing the traveling speed of the saw blade.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、特公昭
５８−５２７６９号公報に示される技術にあっては、鋸
刃の走行速度のみを変化させるものであるため、鋸刃ピ
ッチ，鋸刃速度，ワーク質量，切断位置等の条件により
発生する共振現象を充分に抑えることができず、その共
振が連続するため振幅が大きくなって、大きな騒音が発
生するという問題がある。また、この共振現象が鋸刃の
寿命にも悪影響を与えるという問題がある。However, in the technique disclosed in Japanese Patent Publication No. S58-52769, only the traveling speed of the saw blade is changed, and therefore the saw blade pitch, the saw blade speed, and the workpiece. There is a problem in that the resonance phenomenon that occurs due to conditions such as mass and cutting position cannot be sufficiently suppressed, and since the resonance continues, the amplitude becomes large and a large noise is generated. There is also a problem that this resonance phenomenon adversely affects the life of the saw blade.
【０００５】この発明の目的は、以上のような従来の技
術に着目してなされたものであり、連続共振を防止する
ことにより切断時の騒音の低下および鋸刃の寿命を長く
することのできる鋸盤の制御方法およびその制御装置を
提供することにある。The object of the present invention has been made by paying attention to the above-mentioned conventional techniques, and by preventing continuous resonance, it is possible to reduce noise during cutting and prolong the life of the saw blade. It is to provide a control method of a saw machine and a control device thereof.
【０００６】[0006]
【課題を解決するための手段】請求項１による発明の鋸
盤の制御方法は、上記の目的を達成するために、駆動モ
ータにより駆動される鋸刃が鋸刃移動装置により移動し
てワークを切断する鋸盤であって、前記鋸刃の走行速度
および前記鋸刃移動装置の移動速度を切断加工中に変動
させるべく制御することを特徴とするものである。In order to achieve the above object, a saw blade driven by a drive motor is moved by a saw blade moving device to move a workpiece. A saw machine for cutting, characterized in that the traveling speed of the saw blade and the moving speed of the saw blade moving device are controlled so as to be varied during the cutting process.
【０００７】請求項２による発明の鋸盤の制御方法は、
上記の目的を達成するために、請求項１記載の鋸刃の走
行速度と鋸刃移動装置の移動速度が同期して変動すべく
制御することを特徴とするものである。The control method of the saw machine according to the second aspect of the invention is
In order to achieve the above object, the traveling speed of the saw blade and the moving speed of the saw blade moving device according to claim 1 are controlled so as to fluctuate in synchronization.
【０００８】請求項３による発明の鋸盤の制御方法は、
上記の目的を達成するために、駆動モータにより駆動さ
れる鋸刃がワークを切断する鋸盤であって、前記鋸刃の
走行速度を切断加工中に変動させ、前記鋸刃が共振する
鋸刃の走行速度を検出し、その後前記共振する鋸刃の走
行速度を回避した鋸刃の走行速度にて切断加工を行うべ
く制御することを特徴とするものである。The control method of the saw machine according to the third aspect of the invention is
In order to achieve the above object, a saw blade driven by a drive motor is a saw blade for cutting a work, and the traveling speed of the saw blade is changed during cutting, and the saw blade resonates. Is detected, and then the cutting speed is controlled so as to perform the cutting process at a traveling speed of the saw blade that avoids the traveling speed of the resonating saw blade.
【０００９】請求項４による発明の鋸盤の制御装置は、
上記の目的を達成するために、制御装置からの指令によ
り駆動モータが鋸刃を駆動し鋸刃移動装置が鋸刃を移動
させてワークを切断する鋸盤であって、前記制御装置
が、駆動モータの回転数を変動させる鋸刃速度調整部
と、鋸刃移動装置の移動速度を変動させる鋸刃移動調整
部と、を備えてな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 control device for a saw machine,
In order to achieve the above object, a saw motor in which a drive motor drives a saw blade according to a command from a control device and a saw blade moving device moves the saw blade to cut a workpiece, wherein the control device drives the saw blade. It is characterized by comprising a saw blade speed adjusting unit for changing the rotational speed of the motor and a saw blade moving adjusting unit for changing the moving speed of the saw blade moving device.
【００１０】また、請求項５による発明の鋸盤の制御装
置は、上記の目的を達成するために、請求項４記載の鋸
刃速度調整部が駆動モータの回転数を周期的に変動させ
ると共に、鋸刃移動調整部が鋸刃の移動速度を周期的に
変動させるものであ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 saw blade control device in which the saw blade speed adjusting section according to the fourth aspect periodically changes the rotational speed of the drive motor in order to achieve the above object. The saw blade movement adjusting unit periodically changes the moving speed of the saw blade.
【００１１】[0011]
【作用】請求項１による鋸盤の制御方法では、鋸盤の駆
動モータが鋸刃を駆動すると共に、鋸刃移動装置が鋸刃
を移動させることによりワークを切断する際に、前記鋸
刃の走行速度および鋸刃移動装置の移動速度を切断加工
中に変動させるべく制御するものである。In the method for controlling a saw blade according to the present invention, when the saw blade drive motor drives the saw blade and the saw blade moving device moves the saw blade to cut the workpiece, The traveling speed and the moving speed of the saw blade moving device are controlled so as to be changed during the cutting process.
【００１２】請求項２による鋸盤の制御方法では、請求
項１記載の鋸刃の走行速度と鋸刃移動装置の移動速度が
同期して変動すべく制御するものである。According to a second aspect of the present invention, there is provided a saw blade control method in which the traveling speed of the saw blade and the traveling speed of the saw blade moving device are controlled so as to change in synchronization with each other.
【００１３】請求項３による鋸盤の制御方法では、鋸盤
の駆動モータが鋸刃を駆動することによりワークを切断
する際に、前記鋸刃の走行速度を切断加工中に変動さ
せ、前記鋸刃が共振する鋸刃の走行速度を検出し、その
後前記共振する鋸刃の走行速度を回避した鋸刃の走行速
度にて切断加工を行うべく制御するものである。In the method for controlling a saw machine according to a third aspect of the present invention, when the saw blade drive motor drives the saw blade to cut the workpiece, the traveling speed of the saw blade is changed during the cutting process, The traveling speed of the saw blade with which the blade resonates is detected, and thereafter the cutting is controlled to perform the cutting process at the traveling speed of the saw blade that avoids the traveling speed of the resonating saw blade.
【００１４】請求項４による鋸盤の制御装置では、鋸盤
の制御装置の指令により駆動モータが鋸刃を駆動し、鋸
刃移動装置が鋸刃を移動させてワークを切断する際に、
前記制御装置の鋸刃速度調整部が駆動モータの回転数を
変動させると共に、鋸刃移動調整部が鋸刃移動装置の移
動速度を変動させるべく制御するものである。In the saw blade control device according to the present invention, the drive motor drives the saw blade according to a command from the saw blade control device, and the saw blade moving device moves the saw blade to cut the workpiece.
The saw blade speed adjusting unit of the control device changes the rotational speed of the drive motor, and the saw blade movement adjusting unit controls to change the moving speed of the saw blade moving device.
【００１５】また、請求項５による鋸盤の制御装置で
は、請求項４記載の鋸刃速度調整部が駆動モータの回転
数を周期的に変動させると共に、鋸刃移動調整部が鋸刃
の移動速度を周期的に変動させるべく制御するものであ
る。According to a fifth aspect of the present invention, there is provided a saw blade control device in which the saw blade speed adjusting section periodically varies the rotational speed of the drive motor and the saw blade movement adjusting section moves the saw blade. The speed is controlled so as to be changed periodically.
【００１６】[0016]
【実施例】以下、この発明の好適な一実施例を図面に基
づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings.
【００１７】図２には鋸盤としての横型帯鋸盤１および
この横型帯鋸盤１を制御する制御装置としてのＮＣ装置
３が示されている。FIG. 2 shows a horizontal band saw machine 1 as a saw machine and an NC device 3 as a control device for controlling the horizontal band saw machine 1.
【００１８】この横型帯鋸盤１は、ベース５上にピン７
を介して水平に旋回自在に支承された機台９と、この機
台９の上方に上下動自在に設けられたカッティングヘッ
ド１１より主に構成されている。This horizontal band saw machine 1 has pins 7 on a base 5.
It is mainly configured by a machine base 9 which is supported by a horizontal swivel through a machine and a cutting head 11 which is provided above the machine base 9 so as to be vertically movable.
【００１９】機台９上にはワークＷの切断位置より後側
（図１中紙面直角方向向こう側）においてワークＷを挟
持固定する旋回バイス装置１３が設けられている。この
旋回バイス装置１３は、機台９に固定されている基準固
定バイスジョー１５と、この基準固定バイスジョー１５
に接近離反自在の可動バイスジョー１７から構成され
る。また、機台９上には、可動バイスジョー１７を往復
移動させるバイスシリンダ１９が設けられている。On the machine base 9, there is provided a turning vise device 13 for sandwiching and fixing the work W on the rear side (the side opposite to the direction perpendicular to the paper surface in FIG. 1) from the cutting position of the work W. The turning vise device 13 includes a reference fixed vise jaw 15 fixed to the machine base 9 and the reference fixed vise jaw 15.
It is composed of a movable vise jaw 17 that can be moved toward and away from the. Further, on the machine base 9, a vise cylinder 19 for reciprocating the movable vise jaw 17 is provided.
【００２０】従って、バイスシリンダ１９が可動バイス
ジョー１７を基準固定バイスジョー１５に接近移動させ
て、可動バイスジョー１７と基準固定バイスジョー１５
の協働によりワークＷを挟持固定するものである。Therefore, the vise cylinder 19 moves the movable vise jaw 17 closer to the reference fixed vise jaw 15, and the movable vise jaw 17 and the reference fixed vise jaw 15 are moved.
The work W is clamped and fixed by the above-mentioned cooperation.
【００２１】機台９の図２中右側上面にはメインポスト
２１が鉛直に立設されており、このメインポスト２１に
はカッティングヘッド１１が上下方向に平行移動自在に
設けられている。A main post 21 is vertically provided on the upper surface of the machine base 9 on the right side in FIG. 2, and a cutting head 11 is provided on the main post 21 so as to be vertically movable in parallel.
【００２２】前記メインポスト２１の近傍には、カッテ
ィングヘッド１１を上下動させる昇降用シリンダ２３が
メインポスト２１と同様鉛直に立設されており、昇降用
シリンダ２３のピストンロッド２５の上端がカッティン
グヘッド１１に取付けられている。また、機台９の図２
中左側部分上面には、カッティングヘッド１１を上下に
案内するサブガイドポスト２７が鉛直に立設されてい
る。In the vicinity of the main post 21, an elevating cylinder 23 for vertically moving the cutting head 11 is erected vertically like the main post 21, and the upper end of the piston rod 25 of the elevating cylinder 23 is cut head. It is attached to 11. 2 of the machine base 9
A sub-guide post 27 that vertically guides the cutting head 11 is vertically provided on the upper surface of the middle left portion.
【００２３】従って、昇降用シリンダ２３のピストンロ
ッド２５を上下動させることによりカッティングヘッド
１１はメインポスト２１とサブガイドポスト２７に沿っ
て垂直上下方向へ平行移動することになる。Therefore, by vertically moving the piston rod 25 of the lifting cylinder 23, the cutting head 11 is moved in parallel in the vertical vertical direction along the main post 21 and the sub guide post 27.
【００２４】カッティングヘッド１１は適宜に傾斜した
ビーム部材２９の両側にそれぞれハウジング３１Ｒ，３
１Ｌを備えたＣ形状をしており、各ハウジング３１Ｒ，
３１Ｌ内には駆動軸３３および従動軸３５を介してそれ
ぞれ駆動ホイール３７，従動ホイール３９が回転自在に
内装されている。また、駆動ホイール３７側のハウジン
グ３１Ｒには減速機４１を介して駆動ホイール３７を回
転駆動する駆動モータ４３が設けられている。The cutting head 11 has housings 31R and 3 on both sides of an appropriately inclined beam member 29.
It has a C shape with 1L and each housing 31R,
A drive wheel 37 and a driven wheel 39 are rotatably mounted inside 31L via a drive shaft 33 and a driven shaft 35, respectively. Further, the housing 31R on the drive wheel 37 side is provided with a drive motor 43 that rotationally drives the drive wheel 37 via a speed reducer 41.
【００２５】駆動ホイール３７と従動ホイール３９とに
は、ワークＷを切断するためのエンドレス状の帯鋸刃Ｂ
Ｓが巻回されており、この帯鋸刃ＢＳのワークＷを切断
する部分は鋸刃ガイド４５，４５により垂直にひねり起
こされている。The drive wheel 37 and the driven wheel 39 have endless band saw blades B for cutting the work W.
S is wound, and the portion of the band saw blade BS for cutting the work W is vertically twisted and raised by the saw blade guides 45, 45.
【００２６】従って、駆動モータ４３が駆動ホイール３
７を回転駆動することにより帯鋸刃ＢＳが回転走行し、
ワークＷを切断する。Therefore, the drive motor 43 is driven by the drive wheel 3
By rotating 7 the band saw blade BS rotates,
The work W is cut.
【００２７】また、図１には、鋸刃速度および鋸刃移動
速度の制御を行うＮＣ装置３が示されている。ＮＣ装置
３は主制御部であるＣＰＵ４７を中心に、入力手段であ
るキーボード４９、出力手段であるＣＲＴ５１を有し、
加工プログラムやワークＷの形状や加工データ等の種々
のデータを記憶するメモリ５３を有している。また、駆
動モータ４３に指令を送る鋸刃速度調整部５５および鋸
刃移動装置である昇降用シリンダ２３の移動速度を制御
して切込速度を調整する鋸刃移動調整部５７が設けられ
ている。Further, FIG. 1 shows an NC device 3 for controlling the saw blade speed and the saw blade moving speed. The NC device 3 has a CPU 47 as a main control unit, a keyboard 49 as an input unit, and a CRT 51 as an output unit,
It has a memory 53 for storing various data such as a machining program, the shape of the work W, and machining data. Further, a saw blade speed adjusting unit 55 that sends a command to the drive motor 43 and a saw blade moving adjusting unit 57 that controls the moving speed of the lifting cylinder 23 that is a saw blade moving device to adjust the cutting speed are provided. .
【００２８】鋸刃速度調整部５５にはインバータ５９が
設けられており、このインバータ５９を介して駆動モー
タ４３に指令を送ることができる。なお、モータマグネ
ットにはインバータ５９を介さずに指令を送るようにな
っている。前述のように帯鋸刃ＢＳを走行させる駆動ホ
イール３７は、減速機４１を介して駆動モータ４３によ
り回転駆動されるので、この駆動モータ４３の回転数を
制御することにより帯鋸刃ＢＳの走行速度を制御する。The saw blade speed adjusting unit 55 is provided with an inverter 59, and a command can be sent to the drive motor 43 via this inverter 59. A command is sent to the motor magnet without passing through the inverter 59. As described above, the drive wheel 37 that drives the band saw blade BS is rotationally driven by the drive motor 43 via the speed reducer 41. Therefore, by controlling the rotational speed of the drive motor 43, the traveling speed of the band saw blade BS is controlled. Control.
【００２９】図３には、鋸刃移動調整部５７とカッティ
ングヘッド１１との関係の一例が詳細に示されている。
カッティングヘッド１１を上下動させる昇降用シリンダ
２３のシリンダ室６１はパイロット付きのチェック弁６
３を介して第一の電磁切換弁６５のＡポートに接続され
ている。この第一の電磁切換弁６５のＰポートにはフィ
ルタ６７を介して流量調整弁６９が設けられている。こ
の流量調整弁６９は鋸刃移動調整部５７により制御され
る流量可変機構７１により調整されるようになってい
る。FIG. 3 shows an example of the relationship between the saw blade movement adjusting section 57 and the cutting head 11 in detail.
The cylinder chamber 61 of the lifting cylinder 23 that moves the cutting head 11 up and down has a check valve 6 with a pilot.
3 is connected to the A port of the first electromagnetic switching valve 65. The P port of the first electromagnetic switching valve 65 is provided with a flow rate adjusting valve 69 via a filter 67. The flow rate adjusting valve 69 is adjusted by a flow rate varying mechanism 71 controlled by the saw blade movement adjusting unit 57.
【００３０】また、前記第一の電磁切換弁６５のＴポー
トには第二の電磁切換弁７３のＡポートが接続されお
り、第二の電磁切換弁７３のＰポート，Ｔポートにはモ
ータＭにより駆動される油圧ポンプ７５，タンクＴが接
続されており、タンクＴから圧油を汲み上げるようにな
っている。The T port of the first electromagnetic switching valve 65 is connected to the A port of the second electromagnetic switching valve 73, and the motor M is connected to the P port and T port of the second electromagnetic switching valve 73. A hydraulic pump 75 and a tank T, which are driven by, are connected, and the pressure oil is pumped up from the tank T.
【００３１】従って、第一の電磁切換弁６５を左側へ移
動させてＡポートとＴポートを接続し、第二の電磁切換
弁７３を右側へ移動させてＡポートとＰポートおよびＢ
ポートとＴポートを接続した状態でモータＭを作動させ
ると、圧油がタンクＴから汲み上げられて昇降用シリン
ダ２３のシリンダ室６１に供給され、カッティングヘッ
ド１１は上昇する。Therefore, the first electromagnetic switching valve 65 is moved to the left to connect the A port and the T port, and the second electromagnetic switching valve 73 is moved to the right to move the A port, the P port and the B port.
When the motor M is operated in a state where the port and the T port are connected, the pressure oil is pumped up from the tank T and supplied to the cylinder chamber 61 of the lifting cylinder 23, and the cutting head 11 moves up.
【００３２】また、同じく第一の電磁切換弁６５を左側
へ移動させておき、第二の電磁切換弁７３を左側へ移動
させてＡポートとＴポートを接続し、ＢポートとＰポー
トを接続した状態でモータＭを作動させると、第二の電
磁切換弁７３のＢポートからパイロット圧油がチェック
弁６３に供給されてチェック弁６３が開く。このため、
昇降用シリンダ２３のシリンダ室６１の圧油は第一の電
磁切換弁６５および第二の電磁切換弁７３を通ってタン
クＴへ排出されるのでカッティングヘッド１１は急速に
下降する。Similarly, the first electromagnetic switching valve 65 is moved to the left side, the second electromagnetic switching valve 73 is moved to the left side to connect the A port and the T port, and connect the B port and the P port. When the motor M is operated in this state, pilot pressure oil is supplied to the check valve 63 from the B port of the second electromagnetic switching valve 73, and the check valve 63 opens. For this reason,
The pressure oil in the cylinder chamber 61 of the lifting cylinder 23 is discharged to the tank T through the first electromagnetic switching valve 65 and the second electromagnetic switching valve 73, so that the cutting head 11 rapidly descends.
【００３３】一方、第一の電磁切換弁６５を右側へ移動
させてＡポートとＰポートを接続し、第二の電磁切換弁
７３を左側へ移動させた状態でモータＭを作動させる
と、前述の場合と同様に第二の電磁切換弁７３からのパ
イロット操作によりチェック弁６３が開き、シリンダ室
６１の圧油が第一の電磁切換弁６５から流量調整弁６９
を通ってタンクＴへ排出される。従って、この流量調整
弁６９を鋸刃移動調整部５７が制御することによりカッ
ティングヘッド１１の下降速度すなわち切込速度が調整
されることとなる。On the other hand, when the first electromagnetic switching valve 65 is moved to the right side to connect the A port and the P port and the second electromagnetic switching valve 73 is moved to the left side, the motor M is operated. In the same manner as in the above case, the check valve 63 is opened by the pilot operation from the second electromagnetic switching valve 73, and the pressure oil in the cylinder chamber 61 is transferred from the first electromagnetic switching valve 65 to the flow rate adjusting valve 69.
And is discharged to the tank T through. Therefore, the descending speed of the cutting head 11, that is, the cutting speed is adjusted by controlling the flow rate adjusting valve 69 by the saw blade movement adjusting unit 57.
【００３４】次に、ＮＣ装置３による帯鋸刃ＢＳの鋸刃
速度の制御動作を説明する。ＮＣ装置３の鋸刃速度調整
部５５からの指令により、駆動モータ４３のマグネット
スイッチをオンとし、インバータ５９に回転指令を発す
ると共に図４に示されるように周期的に変動する周波数
指令電圧を与える。従って、インバータ５９により回転
数を制御される駆動モータ４３の回転数も周期的に変動
し、減速機４１および駆動ホイール３７を介して帯鋸刃
ＢＳの速度も周期的に変動する。Next, the control operation of the saw blade speed of the band saw blade BS by the NC device 3 will be described. In response to a command from the saw blade speed adjusting unit 55 of the NC device 3, the magnet switch of the drive motor 43 is turned on, a rotation command is issued to the inverter 59, and a frequency command voltage that periodically fluctuates is given as shown in FIG. . Therefore, the rotation speed of the drive motor 43 whose rotation speed is controlled by the inverter 59 also periodically changes, and the speed of the band saw blade BS also periodically changes via the speed reducer 41 and the drive wheel 37.
【００３５】図４中、基準電圧７７は鋸の種類，鋸刃の
ピッチ，ワーク材質，ワークサイズ等により決定される
ものである。また、図４中Ａは帯鋸刃ＢＳの走行速度周
期変動上限オフセット値を表し、Ｂは走行速度周期変動
下限オフセット値を表す。また、Ｃは走行速度周期変動
加減速ステップ時間を表す。いずれも可変の値である。In FIG. 4, the reference voltage 77 is determined by the type of saw, the pitch of the saw blade, the work material, the work size and the like. Further, in FIG. 4, A represents a traveling speed cycle fluctuation upper limit offset value of the band saw blade BS, and B represents a traveling speed cycle fluctuation lower limit offset value. Further, C represents a traveling speed cycle fluctuation acceleration / deceleration step time. Both are variable values.
【００３６】このような鋸盤の制御方法およびその制御
装置によれば、ＮＣ装置３の鋸刃速度調整部５５が駆動
モータ４３の回転数を変動させるように制御するので、
駆動モータ４３により駆動される帯鋸刃ＢＳの走行速度
は変動する。さらに、ＮＣ装置３の鋸刃移動調整部５７
が昇降用シリンダ２３の下降速度を制御して切込速度を
変動させるので、連続した共振を防止して振幅を小さく
することができる。これにより、騒音の低下および帯鋸
刃ＢＳの寿命を延ばすことができる。According to such a saw control method and its control apparatus, the saw blade speed adjusting section 55 of the NC apparatus 3 controls so as to change the rotational speed of the drive motor 43.
The traveling speed of the band saw blade BS driven by the drive motor 43 varies. Further, the saw blade movement adjusting unit 57 of the NC device 3
Controls the descending speed of the ascending / descending cylinder 23 to change the cutting speed, so that continuous resonance can be prevented and the amplitude can be reduced. This can reduce noise and extend the life of the band saw blade BS.
【００３７】また、帯鋸刃ＢＳの走行速度や切込速度を
変動させて、共振する各速度を発見した場合には、該当
する帯鋸刃ＢＳの走行速度や切込速度を避けた速度で切
断を行うことができる。このため、共振を防止して騒音
の低下を図り、帯鋸刃ＢＳの寿命を延ばすことができ
る。When the running speed and the cutting speed of the band saw blade BS are varied to find each resonating speed, the cutting is performed at a speed avoiding the running speed and the cutting speed of the corresponding band saw blade BS. It can be carried out. Therefore, resonance can be prevented, noise can be reduced, and the life of the band saw blade BS can be extended.
【００３８】なお、この発明は、前述した実施例に限定
されることなく、適宜な変更を行なうことにより、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
施例においては横型の帯鋸盤１について説明したが、こ
れに限らず丸鋸盤にも適用できる。The present invention is not limited to the above-mentioned embodiments, but can be implemented in other modes by making appropriate changes. That is, although the horizontal band saw machine 1 has been described in the above-described embodiment, the present invention is not limited to this and can be applied to a circular saw machine.
【００３９】また、前述の実施例においてはインバータ
５９を用いて帯鋸刃ＢＳの走行速度を変動させたが、イ
ンバータ５９を用いることなく帯鋸刃ＢＳの走行速度を
変動させてもよい。Although the traveling speed of the band saw blade BS is changed by using the inverter 59 in the above-described embodiment, the traveling speed of the band saw blade BS may be changed without using the inverter 59.
【００４０】また、帯鋸刃ＢＳの走行速度を周期的に変
動させたが、これに代わり、乱数により走行速度を変動
させるようにしてもよい。Although the traveling speed of the band saw blade BS is periodically changed, the traveling speed may be changed by a random number instead.
【００４１】さらに、前述の実施例においては駆動モー
タ４３の制御を時間軸に関して変動させたが、代わりに
駆動モータ４３の制御をカッティングヘッド１１の高さ
位置に関して変動させるようにしてもよい。Further, although the control of the drive motor 43 is changed with respect to the time axis in the above-described embodiment, the control of the drive motor 43 may be changed with respect to the height position of the cutting head 11 instead.
【００４２】[0042]
【発明の効果】請求項１の発明による鋸盤の制御方法は
鋸盤の駆動モータが鋸刃を駆動すると共に、鋸刃移動装
置が鋸刃を移動させることによりワークを切断する際
に、前記鋸刃の走行速度および鋸刃移動装置の移動速度
を切断加工中に変動させるべく制御するので、同一鋸刃
速度で切断する場合のような連続した共振を回避するこ
とができる。これにより、加工中の騒音の低下および鋸
刃の寿命を延ばすことが可能になる。According to the method of controlling a saw machine according to the first aspect of the present invention, when the saw blade drive motor drives the saw blade and the saw blade moving device moves the saw blade to cut the workpiece, Since the traveling speed of the saw blade and the moving speed of the saw blade moving device are controlled so as to be changed during the cutting process, continuous resonance as in the case of cutting at the same saw blade speed can be avoided. This makes it possible to reduce noise during processing and extend the life of the saw blade.
【００４３】請求項２によるこの発明の鋸盤の制御方法
では、請求項１記載の鋸刃の走行速度と鋸刃移動装置の
移動速度が同期して変動すべく制御するので、同一鋸刃
速度および同一鋸刃移動速度で切断する場合のような連
続した共振を回避することができる。これにより、加工
中の騒音の低下および鋸刃の寿命を延ばすことが可能に
なる。In the method of controlling a saw according to the present invention according to claim 2, since the traveling speed of the saw blade and the moving speed of the saw blade moving device according to claim 1 are controlled so as to change in synchronization, the same saw blade speed is obtained. And continuous resonance such as when cutting at the same saw blade movement speed can be avoided. This makes it possible to reduce noise during processing and extend the life of the saw blade.
【００４４】請求項３によるこの発明の鋸盤の制御方法
によれば、鋸盤の駆動モータが鋸刃を駆動することによ
りワークを切断する際に、前記鋸刃の走行速度を切断加
工中に変動させ、前記鋸刃が共振する鋸刃の走行速度を
検出し、その後前記共振する鋸刃の走行速度を回避した
鋸刃の走行速度にて切断加工を行うべく制御するので、
鋸刃の共振を回避することができる。これにより、加工
中の騒音の低下および鋸刃の寿命を延ばすことが可能に
なる。According to the method for controlling a saw machine of the present invention according to claim 3, when the saw blade drive motor drives the saw blade to cut the workpiece, the traveling speed of the saw blade is controlled during cutting. Varying, the traveling speed of the saw blade where the saw blade resonates is detected, and thereafter the traveling speed of the resonating saw blade is controlled to perform cutting processing at the traveling speed of the saw blade that is avoided,
The resonance of the saw blade can be avoided. This makes it possible to reduce noise during processing and extend the life of the saw blade.
【００４５】請求項４によるこの発明の鋸盤の制御装置
によれば、鋸盤の制御装置の指令により駆動モータが鋸
刃を駆動し、鋸刃移動装置が鋸刃を移動させてワークを
切断する際に、前記制御装置の鋸刃速度調整部が駆動モ
ータの回転数を変動させると共に、鋸刃移動調整部が鋸
刃移動装置の移動速度を変動させるべく制御するので、
鋸刃の走行速度が変動すると共に鋸刃移動装置の移動速
度も変動し、同一鋸刃速度および同一切込速度で切断す
る場合のような連続した共振を回避することができる。
これにより、加工中の騒音の低下および鋸刃の寿命を延
ばすことが可能になる。According to the control device for a saw machine of the present invention according to claim 4, the drive motor drives the saw blade in response to a command from the controller for the saw machine, and the saw blade moving device moves the saw blade to cut the workpiece. In doing so, the saw blade speed adjusting unit of the control device changes the rotational speed of the drive motor, and the saw blade movement adjusting unit controls to change the moving speed of the saw blade moving device.
The traveling speed of the saw blade fluctuates and the moving speed of the saw blade moving device also fluctuates, so that continuous resonance as in the case of cutting at the same saw blade speed and the same cutting speed can be avoided.
This makes it possible to reduce noise during processing and extend the life of the saw blade.
【００４６】また、請求項５によるこの発明の鋸盤の制
御装置によれば、請求項４記載の鋸刃速度調整部が駆動
モータの回転数を周期的に変動させると共に、鋸刃移動
調整部が鋸刃移動装置の移動速度を周期的に変動させる
べく制御するので、鋸刃速度および切込速度が周期的に
変動し、同一鋸刃速度および切込速度で切断する場合の
ような連続した共振を回避することができる。これによ
り、加工中の騒音の低下および鋸刃の寿命を延ばすこと
が可能になる。According to a fifth aspect of the present invention, there is provided a saw blade control device according to the fourth aspect, in which the saw blade speed adjusting portion periodically changes the rotational speed of the drive motor and the saw blade movement adjusting portion. Since the saw blade moving device controls the movement speed of the saw blade moving device periodically, the saw blade speed and the cutting speed change periodically, and continuous cutting such as when cutting at the same saw blade speed and cutting speed is performed. Resonance can be avoided. This makes it possible to reduce noise during processing and extend the life of the saw blade.
【図１】この発明に係る鋸盤の制御装置の構成を示すブ
ロック図である。FIG. 1 is a block diagram showing a configuration of a saw blade control device according to the present invention.
【図２】この発明に係る鋸盤の制御方法およびその制御
装置を適用した実施例としての帯鋸盤を示す全体図であ
る。FIG. 2 is an overall view showing a band saw machine as an embodiment to which a method of controlling a saw machine according to the present invention and a controller thereof are applied.
【図３】鋸刃移動調整部とカッティングヘッドとの関係
の一例を示す詳細図である。FIG. 3 is a detailed view showing an example of a relationship between a saw blade movement adjusting unit and a cutting head.
【図４】鋸刃速度を変動させる電圧の変化の一例を示す
グラフである。FIG. 4 is a graph showing an example of a change in voltage that changes the saw blade speed.
１ 鋸盤 ３ ＮＣ装置（制御装置） ２３ 昇降用シリンダ（鋸刃移動装置） ４３ 駆動モータ ５５ 鋸刃速度調整部 ５７ 鋸刃移動調整部 Ｗ ワーク ＢＳ 鋸刃 1 Saw Machine 3 NC Device (Control Device) 23 Elevating Cylinder (Saw Blade Moving Device) 43 Drive Motor 55 Saw Blade Speed Adjusting Part 57 Saw Blade Moving Adjusting Part W Work BS Saw Blade
Claims (5)
移動装置により移動してワークを切断する鋸盤であっ
て、前記鋸刃の走行速度および前記鋸刃移動装置の移動
速度を切断加工中に変動させるべく制御することを特徴
とする鋸盤の制御方法。1. A saw blade driven by a drive motor to move a saw blade moving device to cut a work, the cutting speed of the saw blade and the moving speed of the saw blade moving device being cut. A method for controlling a saw machine, which is characterized in that the control is performed so as to fluctuate inside.
の移動速度が同期して変動すべく制御することを特徴と
する請求項１記載の鋸盤の制御方法。2. The method of controlling a saw according to claim 1, wherein the traveling speed of the saw blade and the moving speed of the saw blade moving device are controlled so as to change in synchronization with each other.
クを切断する鋸盤であって、前記鋸刃の走行速度を切断
加工中に変動させ、前記鋸刃が共振する鋸刃の走行速度
を検出し、その後前記共振する鋸刃の走行速度を回避し
た鋸刃の走行速度にて切断加工を行うべく制御すること
を特徴とする鋸盤の制御方法。3. A saw blade driven by a drive motor is a saw blade for cutting a workpiece, and the traveling speed of the saw blade is varied during cutting so that the traveling speed of the saw blade resonates. A method of controlling a saw machine, comprising: detecting and then performing a cutting process at a traveling speed of the saw blade that avoids the traveling speed of the resonating saw blade.
鋸刃を駆動し鋸刃移動装置が鋸刃を移動させてワークを
切断する鋸盤であって、前記制御装置が、駆動モータの
回転数を変動させる鋸刃速度調整部と、鋸刃移動装置の
移動速度を変動させる鋸刃移動調整部と、を備えてなる
ことを特徴とする鋸盤の制御装置。4. A saw machine in which a drive motor drives a saw blade according to a command from a control device and a saw blade moving device moves the saw blade to cut a work, wherein the control device is a rotational speed of the drive motor. A saw blade control device comprising: a saw blade speed adjusting unit that changes the moving speed of the saw blade; and a saw blade moving adjusting unit that changes the moving speed of the saw blade moving device.
数を周期的に変動させると共に、前記鋸刃移動調整部が
鋸刃の移動速度を周期的に変動させるものであることを
特徴とする請求項４記載の鋸盤の制御装置。5. The saw blade speed adjusting unit periodically changes the rotational speed of a drive motor, and the saw blade movement adjusting unit periodically changes the saw blade moving speed. The control device for the saw machine according to claim 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01294495A JP3437305B2 (en) | 1995-01-30 | 1995-01-30 | Band sawing machine control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01294495A JP3437305B2 (en) | 1995-01-30 | 1995-01-30 | Band sawing machine control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08197330A true JPH08197330A (en) | 1996-08-06 |
| JP3437305B2 JP3437305B2 (en) | 2003-08-18 |
Family
ID=11819401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01294495A Expired - Fee Related JP3437305B2 (en) | 1995-01-30 | 1995-01-30 | Band sawing machine control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3437305B2 (en) |
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| US7546788B2 (en) | 2005-05-23 | 2009-06-16 | Amada Company, Limited | Method of cutting off workpiece using band saw machine as well as band saw machine |
| WO2006126548A1 (en) * | 2005-05-23 | 2006-11-30 | Amada Company, Limited | Method of cutting work by band-saw machine and band-saw machine |
| JP4541375B2 (en) * | 2005-05-23 | 2010-09-08 | 株式会社アマダ | Method of cutting work by band saw machine and band saw machine |
| KR100966750B1 (en) * | 2005-05-23 | 2010-06-29 | 가부시키가이샤 아마다 | Method of cutting work by band-saw machine and band-saw machine |
| JP2007229810A (en) * | 2006-02-27 | 2007-09-13 | Amada Co Ltd | Method for cutting workpiece by band saw machine |
| KR102189318B1 (en) * | 2020-03-10 | 2020-12-09 | 우영산업(주) | Saw blade cutting device with hydraulic cylinder flow control |
| KR102189322B1 (en) * | 2020-08-31 | 2020-12-09 | 우영산업(주) | Cutting device controlling the precise lifting of the saw blade based on a hydraulic cylinder |
| KR102443242B1 (en) * | 2022-05-23 | 2022-09-14 | 우영산업(주) | A cutting device adjusting the driving speed of the saw according to the area of the material |
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| Publication number | Publication date |
|---|---|
| JP3437305B2 (en) | 2003-08-18 |
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