JP2778242B2 - Water jet processing machine - Google Patents
Water jet processing machineInfo
- Publication number
- JP2778242B2 JP2778242B2 JP2267811A JP26781190A JP2778242B2 JP 2778242 B2 JP2778242 B2 JP 2778242B2 JP 2267811 A JP2267811 A JP 2267811A JP 26781190 A JP26781190 A JP 26781190A JP 2778242 B2 JP2778242 B2 JP 2778242B2
- Authority
- JP
- Japan
- Prior art keywords
- opening
- abrasive
- valve member
- workpiece
- liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明はウォータジェット加工機に関し、より詳しく
は、高圧の液体に研磨材を混合させて被加工物を切断加
工するようにしたウォータジェット加工機に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water jet processing machine, and more particularly, to a water jet processing in which an abrasive is mixed with a high-pressure liquid to cut a workpiece. About the machine.
「従来の技術」 従来、ウォータジェット加工機として、高圧の液体を
吐出する高圧ポンプと、液体通路を介して上記高圧ポン
プと連通し、被加工物にむけて高圧の液体を噴射するノ
ズルと、上記液体通路と連通して高圧の液体に混合させ
る研磨材を収容する研磨材タンクとを備え、上記研磨材
を混合した高圧の液体を被加工物に噴射して該被加工物
に所要の切断加工を施すものは知られている（特開昭63
−120098号公報）。`` Prior art '' Conventionally, as a water jet processing machine, a high-pressure pump that discharges high-pressure liquid, a nozzle that communicates with the high-pressure pump through a liquid passage, and jets high-pressure liquid toward a workpiece, An abrasive tank for containing an abrasive mixed with the high-pressure liquid in communication with the liquid passage, wherein the high-pressure liquid mixed with the abrasive is sprayed onto the workpiece to perform required cutting on the workpiece; Processing is known (JP-A-63
-120098).
「発明が解決しようとする課題」 ところで、上述した従来のウオータジェット加工機で
は、被加工物の板厚や材質等の加工条件が変更された場
合には、変更した加工条件に適合するように液体に混合
させる研磨材の供給量を調整する必要があるが、従来で
は、そのような研磨材の供給量の調整作業を作業者が行
っていたので、非能率的で時間が掛かるという欠点があ
った。[Problems to be Solved by the Invention] By the way, in the conventional water jet processing machine described above, when the processing conditions such as the thickness and the material of the workpiece are changed, the processing is performed so as to conform to the changed processing conditions. It is necessary to adjust the supply amount of the abrasive to be mixed with the liquid, but in the past, since the operation of adjusting the supply amount of the abrasive was performed by an operator, the disadvantage that it was inefficient and time-consuming. there were.
「課題を解決するための手段」 そのような事情に鑑み、本発明は、高圧の液体を吐出
する高圧ポンプと、液体通路を介して上記高圧ポンプと
連通し、被加工物にむけて高圧の液体を噴射するノズル
と、上記液体通路と連通して高圧の液体に混合させる研
磨材を収容する研磨材タンクとを備え、上記研磨材を混
合した高圧の液体を被加工物に噴射して該被加工物に所
要の切断加工を施すウォータジェット加工機において、 上記研磨材タンクの開口部に該開口部を開閉する弁機
構を設けるとともに、この弁機構にこれを開閉作動させ
る駆動機構を接続し、さらに上記被加工物の加工条件に
応じ上記駆動機構を制御して上記開口部の開度を調整す
る制御装置を設け、また、上記弁機構を、板状部材から
なり所定位置に貫通孔を備えて、研磨材タンクに進退動
可能に設けた第１弁部材と、板状部材からなり所定位置
に貫通孔を備えて、上記第１弁部材と摺動して進退動可
能に設けた第２弁部材とから構成し、さらに、上記第１
弁部材を、その貫通孔が研磨材タンクの開口部に重合す
る開放位置と重合しない閉鎖位置とに移動させる第１駆
動手段を設けるとともに、上記第２弁部材を所要量だけ
移動させて、該第２弁部材の貫通孔が、上記開放位置に
位置した第１弁部材の貫通孔と重合する量を調整する第
２駆動手段とを設け、これら第１駆動手段と第２駆動手
段とで上記駆動機構を構成したものである。"Means for Solving the Problems" In view of such circumstances, the present invention provides a high-pressure pump that discharges high-pressure liquid, and communicates with the high-pressure pump through a liquid passage to provide a high-pressure pump to the workpiece. A nozzle for injecting a liquid, and an abrasive tank for storing an abrasive to be mixed with the high-pressure liquid in communication with the liquid passage, wherein the high-pressure liquid mixed with the abrasive is ejected to a workpiece to eject the high-pressure liquid. In a water jet processing machine for performing required cutting processing on a workpiece, a valve mechanism for opening and closing the opening is provided at an opening of the abrasive tank, and a driving mechanism for opening and closing the valve is connected to the valve mechanism. Further, a control device for controlling the drive mechanism according to the processing conditions of the workpiece to adjust the opening degree of the opening is provided, and the valve mechanism is formed of a plate-like member and a through hole is formed at a predetermined position. Equipped with an abrasive tongue A first valve member provided so as to be able to move forward and backward, and a second valve member which is made of a plate-like member and has a through hole at a predetermined position, and is provided so as to slide forward and backward with the first valve member. And the first
First drive means for moving the valve member between an open position where the through hole overlaps the opening of the abrasive tank and a closed position where the through hole does not overlap is provided, and the second valve member is moved by a required amount, Second drive means for adjusting the amount of overlap of the through hole of the second valve member with the through hole of the first valve member located at the open position is provided, and the first drive means and the second drive means use This constitutes a drive mechanism.
「作用」 このような構成によれば、被加工物の板厚や材質等の
加工条件を変更した場合は勿論、被加工物に対するピア
ッシング加工と切断加工との加工条件を変更した場合で
あっても、その変更した加工条件に応じて、制御装置が
駆動機構と弁機構を介して上記研磨材タンクの開口部を
調整するので、液体に混合させる研磨材の供給量を自動
的に調整することができる。[Operation] According to such a configuration, not only the processing conditions such as the plate thickness and the material of the workpiece are changed, but also the processing conditions of piercing and cutting for the workpiece are changed. Also, since the control device adjusts the opening of the abrasive tank via the drive mechanism and the valve mechanism according to the changed processing conditions, the supply amount of the abrasive to be mixed with the liquid is automatically adjusted. Can be.
したがって、加工条件が変更されるたびに研磨材の供
給量の調整作業を作業者が行っていた従来の装置に比較
すると、研磨材の供給量の調整作業を簡略化することが
できる。Therefore, the operation of adjusting the supply amount of the abrasive can be simplified as compared with a conventional apparatus in which the operator adjusts the supply amount of the abrasive every time the processing condition is changed.
「実施例」 以下図示実施例について本発明を説明すると、第１図
において、ウォータジェット加工機の加工ヘッド１は、
高圧ポンプ２から吐出された高圧の液体を上方から下方
へ向けて流通させる液体通路３と、該液体通路３の下端
部に設けられて、図示しない下方側の被加工物に向けて
上記高圧の液体を噴射するノズル４とを備えている。"Example" Hereinafter, the present invention will be described with reference to an illustrated example. In FIG. 1, a processing head 1 of a water jet processing machine
A liquid passage 3 through which the high-pressure liquid discharged from the high-pressure pump 2 flows downward from above, and a high-pressure liquid provided at the lower end of the liquid passage 3 and directed toward a lower workpiece (not shown). A nozzle 4 for injecting a liquid.
上記加工ヘッド１の液体通路３には研磨材通路５の一
端を接続してあり、他方、研磨材通路５の他端は、内部
に研磨材を収容した研磨材タンク６の下端部に接続して
いる。研磨材タンク６に収容した研磨材は、自重により
上記研磨材通路５を介して上記液体通路３に供給され、
高圧の液体が液体通路３を流通する際の負圧によって該
液体通路３内に吸引されて、高圧の液体と混合されるよ
うになっている。One end of an abrasive passage 5 is connected to the liquid passage 3 of the processing head 1, while the other end of the abrasive passage 5 is connected to a lower end of an abrasive tank 6 containing an abrasive therein. ing. The abrasive contained in the abrasive tank 6 is supplied to the liquid passage 3 through the abrasive passage 5 by its own weight,
The high-pressure liquid is sucked into the liquid passage 3 by the negative pressure when flowing through the liquid passage 3 and mixed with the high-pressure liquid.
したがって、上記高圧ポンプ２から加圧ヘッド１の液
体通路３にむけて高圧の液体が給送されると、上記ノズ
ル４から図示しない被加工物にむけて研磨材を混合した
高圧の液体が噴射され、該被加工物に所要の切断加工を
施すことができる。Therefore, when high-pressure liquid is supplied from the high-pressure pump 2 to the liquid passage 3 of the pressure head 1, high-pressure liquid mixed with an abrasive is ejected from the nozzle 4 toward a workpiece (not shown). Then, a required cutting process can be performed on the workpiece.
然して、第２図および第３図に拡大して示すように、
本実施例においては、上記研磨材タンク６の開口部6a,6
bに該開口部6a,6bを開閉する弁機構を構成する第１弁部
材７および第２弁部材８を設けるとともに、両弁部材
７、８にそれらを開閉作動させる駆動機構としてのサー
ボモータ9,10をそれぞれ接続し、さらに被加工物の加工
条件に応じて両弁部材7,8に接続したサーボモータ9,10
の駆動を制御する制御装置11を設けたものである。However, as shown in FIGS. 2 and 3 in an enlarged manner,
In the present embodiment, the openings 6a, 6
b, a first valve member 7 and a second valve member 8 constituting a valve mechanism for opening and closing the openings 6a and 6b are provided, and a servomotor 9 as a driving mechanism for opening and closing the valve members 7 and 8 is provided. , 10 and servomotors 9, 10 connected to both valve members 7, 8 according to the processing conditions of the workpiece.
And a control device 11 for controlling the driving of.
すなわち、本実施例の研磨材タンク６は、最も下方側
に位置して上記研磨材通路５が接続されるじょうご形の
案内部14と、その案内部14の上面を閉鎖して水平方向に
伸びる仕切部15と、その仕切部15の上方に連設された２
つの第１収容部16、第２収容部17とから構成してあり、
上記第１収容部16と第２収容部17とには、それぞれ種類
の異なる研磨材18、19を収容するようにしている。In other words, the abrasive tank 6 of the present embodiment is located at the lowermost position and has a funnel-shaped guide portion 14 to which the abrasive passage 5 is connected, and the upper surface of the guide portion 14 is closed to extend in the horizontal direction. A partition 15 and a 2 connected above the partition 15
The first housing portion 16 and the second housing portion 17,
Different types of abrasives 18 and 19 are accommodated in the first accommodation section 16 and the second accommodation section 17, respectively.
そして、じょうご形に縮径させた両収容部16、17の下
端部は、それら各下端部から連続して上記仕切部15に穿
設した各貫通孔によって上記開口部6a,6bを構成してい
る。したがって、後述するように、第１弁部材７によっ
てこれら開口部6a,6bが交互に開放された際には、両収
容部16、17に収容した研磨材18、19が各開口部6a,6bを
介して案内部14に落下するようになっている。The lower ends of the two housing portions 16 and 17 reduced in diameter into a funnel shape constitute the openings 6a and 6b by the through holes formed in the partition portion 15 continuously from the respective lower ends. I have. Therefore, when the openings 6a and 6b are alternately opened by the first valve member 7 as described later, the abrasives 18 and 19 housed in the housings 16 and 17 are removed from the openings 6a and 6b. Through the guide unit 14.
また、本実施例では、上記案内部14内に図示しない圧
縮空気源と連通するエアノズル20を取り付けてあり、こ
のエアノズル20の先端は、案内部14内の下方中央の位置
に鉛直下方を向けて支持している。そして、被加工物の
加工中に高圧ポンプ２から液体の吐出を停止し、かつ第
１弁部材７により両開口部6a,6bを閉鎖した時に、上記
エアノズル20から研磨材通路５に向けて圧縮空気を供給
することによって、加工ヘッド１の液体通路３から研磨
材通路５に向けて液体が流入するのを防止するととも
に、研磨材通路５に研磨材が残留することがないように
している。Further, in the present embodiment, an air nozzle 20 communicating with a compressed air source (not shown) is mounted in the guide portion 14, and the tip of the air nozzle 20 is directed vertically downward to a lower central position in the guide portion 14. I support it. When the discharge of the liquid from the high-pressure pump 2 is stopped during the processing of the workpiece, and both openings 6a and 6b are closed by the first valve member 7, the compressed air is compressed from the air nozzle 20 toward the abrasive passage 5. By supplying air, the liquid is prevented from flowing from the liquid passage 3 of the processing head 1 toward the abrasive passage 5, and the abrasive does not remain in the abrasive passage 5.
次に、開口部6a,6bを開閉する第１弁部材７について
説明すると、第１弁部材７は板状に形成してあり、上記
両開口部6a,6bに交差させて仕切部15に穿設した水平方
向のガイド孔15aに摺動自在に貫通させている。そし
て、この第１弁部材７の一端は、仕切部15の右方端に設
けた引張りばね21に連結しているので、第１弁部材７は
常時右方に付勢されている。他方、第１弁部材７の他端
は、回転運動を直線運動に変換する変換機構、例えば図
示しないねじ軸とナット部材とからなる変換機構24に連
結してあり、その変換機構24は仕切部15の左方端に配設
した上記サーボモータ９に連動させている。上記サーボ
モータ９は、制御装置11によって正逆方向に回転される
ようにしてあり、このサーボモータ９が回転されると上
記変換機構24を介して第１弁部材７はガイド孔15aに沿
って進退されるようになっている。Next, the first valve member 7 that opens and closes the openings 6a and 6b will be described. The first valve member 7 is formed in a plate shape, and the first valve member 7 is punched in the partition portion 15 so as to intersect with the openings 6a and 6b. It is slidably penetrated through the provided horizontal guide hole 15a. Since one end of the first valve member 7 is connected to a tension spring 21 provided at the right end of the partition 15, the first valve member 7 is constantly urged rightward. On the other hand, the other end of the first valve member 7 is connected to a conversion mechanism for converting rotary motion into linear motion, for example, a conversion mechanism 24 including a screw shaft and a nut member (not shown). 15 is linked to the servomotor 9 disposed at the left end. The servo motor 9 is rotated in the forward and reverse directions by the control device 11, and when the servo motor 9 is rotated, the first valve member 7 moves along the guide hole 15a via the conversion mechanism 24. They are going to retreat.
また、第１弁部材７の所定位置２箇所には、上記開口
部6a、6bの内径と同じ内径の貫通孔7a、7bをそれぞれ穿
設してあり、それら両貫通孔7a、7bが隔てた距離は上記
両開口部6a、6bが隔てた距離よりも小さく設定してい
る。Further, through holes 7a and 7b having the same inner diameter as the inner diameters of the openings 6a and 6b are formed at two predetermined positions of the first valve member 7, and the two through holes 7a and 7b are separated. The distance is set smaller than the distance between the openings 6a and 6b.
そして、制御装置11がサーボモータ９を正逆方向に所
定量だけ回転させることにより、上記第１弁部材７はガ
イド孔15a内の３つの停止位置に位置するようになり、
第１弁部材７が各停止位置に位置することで上記開口部
6a、6bを交互に開閉できるようにしている。すなわち、
第２図、第３図に示すように第１弁部材７が左方端位置
に停止したときには、左方の開口部6aと第１弁部材７の
左方の貫通孔7aが重合して該左方の開口部6aが開放され
るようになり、そのときには第１収容部16に収容された
研磨材18が開口部6aを介して案内部14に落下するように
なる。また、第１弁部材７が上記左方端位置から中間位
置に移動されて停止したときには、第１弁部材７の貫通
孔7a、7bは上記両開口部6a、6bの間に位置するので、ガ
イド孔15aによって開口部6a、6bが同時に閉鎖されるこ
とになる。さらに、第１弁部材７が上記中間位置から右
方端位置に移動されて停止すると、第１弁部材７の右方
の貫通孔7bが右方の開口部6bに重合して該右方の開口部
6bが開放されるので、第２収容部17に収容された研磨材
19が開口部6bを介して案内部14に落下するようになって
いる。Then, the control device 11 rotates the servomotor 9 in the forward and reverse directions by a predetermined amount, so that the first valve member 7 is located at three stop positions in the guide hole 15a,
When the first valve member 7 is located at each stop position, the opening
6a and 6b can be opened and closed alternately. That is,
As shown in FIGS. 2 and 3, when the first valve member 7 stops at the left end position, the left opening 6a and the left through hole 7a of the first valve member 7 overlap, and The opening 6a on the left side is opened, and at this time, the abrasive 18 contained in the first containing portion 16 falls to the guide portion 14 through the opening 6a. Also, when the first valve member 7 is moved from the left end position to the intermediate position and stopped, the through holes 7a and 7b of the first valve member 7 are located between the openings 6a and 6b. The openings 6a and 6b are simultaneously closed by the guide hole 15a. Further, when the first valve member 7 is moved from the intermediate position to the right end position and stopped, the right through-hole 7b of the first valve member 7 overlaps the right opening 6b and the right through hole 7b overlaps the right opening 6b. Aperture
6b is opened, the abrasive material stored in the second storage portion 17
19 falls on the guide section 14 through the opening 6b.
次に、第２弁部材８について説明すると、第２弁部材
８は方形の板材部材から構成して、上記ガイド孔15aに
直交させるとともに上記開口部6a,6bに交差させて穿設
した水平方向の第２のガイド孔15bに摺動自在に係合さ
せている。Next, the second valve member 8 will be described. The second valve member 8 is formed of a rectangular plate member, and is formed in a horizontal direction perpendicular to the guide hole 15a and crossing the openings 6a and 6b. Is slidably engaged with the second guide hole 15b.
そして、この第２弁部材８の一端には、上記第１弁部
材側と同様の構成からなる変換機構25を介して上記サー
ボモータ10を連動させてあり、制御装置11によってこの
サーボモータ10を正逆方向に回転させることで、第２弁
部材８をガイド孔15bに沿って進退させるようにしてい
る。The servomotor 10 is linked to one end of the second valve member 8 via a conversion mechanism 25 having the same configuration as that of the first valve member, and the servomotor 10 is controlled by the control device 11. By rotating in the forward and reverse directions, the second valve member 8 is moved forward and backward along the guide hole 15b.
また、第２弁部材８における上記各開口部6a,6bと交
差する所定位置には、それぞれ第２弁部材８の移動方向
と平行に同一寸法の長穴8a,8bをそれぞれ穿設してあ
り、第２弁部材８を進退させたときに両長穴8a,8bを各
開口部6a,6bと重合させることができるようにしてい
る。したがって、両長穴8a、8bの前方側の端部が各開口
部6a,6bと重合する量を調整することで、一方の開口部6
a（6b）が開放された状態において該開口部6a（6b）の
開度を調整することができる。At predetermined positions of the second valve member 8 that intersect with the openings 6a and 6b, elongated holes 8a and 8b having the same dimensions are formed in parallel with the moving direction of the second valve member 8, respectively. When the second valve member 8 is advanced and retracted, the slots 8a and 8b can be made to overlap the openings 6a and 6b. Therefore, by adjusting the amount by which the front ends of the long holes 8a and 8b overlap the openings 6a and 6b, one of the openings 6a and 6b can be adjusted.
The opening degree of the opening 6a (6b) can be adjusted in a state where a (6b) is opened.
本実施例では、制御装置11に予め被加工物の板厚、材
質、加工速度、ノズル４の液圧、およびいずれの研磨材
（16,17）を液体に混合するのか等の加工条件に応じて
最も適切な研磨材の供給量を記憶させてあり、被加工物
の加工開始時に被加工物の加工条件を制御装置11に入力
すると、制御装置11は上記両弁部材７、８を進退させて
入力された加工条件に対応するように開口部6a（6b）の
開度を調整する。In the present embodiment, the control device 11 is controlled in advance according to the processing conditions such as the thickness of the workpiece, the material, the processing speed, the hydraulic pressure of the nozzle 4, and which abrasive (16, 17) is to be mixed with the liquid. When the processing conditions of the workpiece are input to the control device 11 at the start of the processing of the workpiece, the control device 11 moves the valve members 7 and 8 forward and backward. The opening degree of the opening 6a (6b) is adjusted so as to correspond to the processing condition input by the operator.
また、本実施例では、制御装置11に記憶させる加工条
件として、被加工物へのピアッシング加工時に供給する
研磨材18（19）の供給量を、切断加工時に供給する研磨
材18（19）の供給量よりも少ない量となるように予め記
憶させている。したがって、被加工物へのピアッシング
加工時には、制御装置11は第２弁部材８の長穴8a,8bを
介して開口部6a（6b）の開度をピアッシング加工に適切
な小さな開度となるように調整し、他方、ピアッシング
加工から切断加工に移行したら第２弁部材８の長穴8a,8
bを介して開口部6a（6b）の開度を大きな開度となるよ
うに調整するようになる。In the present embodiment, as the processing conditions stored in the control device 11, the supply amount of the abrasive 18 (19) supplied at the time of piercing to the workpiece is determined by the amount of the abrasive 18 (19) supplied at the time of cutting. It is stored in advance so as to be smaller than the supply amount. Therefore, at the time of piercing on the workpiece, the control device 11 sets the opening of the opening 6a (6b) through the elongated holes 8a and 8b of the second valve member 8 to a small opening suitable for piercing. To the cutting process from the piercing process to the slotting process of the second valve member 8.
Through b, the opening of the opening 6a (6b) is adjusted to be a large opening.
以上の構成において、加工ヘッド１によって被加工物
に切断加工を施す際には、事前に、被加工物の板厚等の
必要な加工条件を制御装置11に入力する。In the above-described configuration, when cutting a workpiece with the processing head 1, necessary processing conditions such as the thickness of the workpiece are input to the control device 11 in advance.
ここで、研磨材タンク６の第１収容部16側の研磨材18
を液体に混合するとして制御装置11に入力した場合に
は、制御装置11はサーボモータ９を介して第１弁部材７
を第２図、第３図に示す左方端の位置に停止させるの
で、第１収容部16側の開口部6aが開放される。また、こ
れと同様に、制御装置11はサーボモータ10を介して第２
弁部材８を進退させて、上記開口部6aの開度をピアッシ
ング加工およびその他の加工条件に適合する開度に調整
する。Here, the abrasive 18 on the first storage section 16 side of the abrasive tank 6 is used.
Is input to the control device 11 to be mixed with the liquid, the control device 11
Is stopped at the left end position shown in FIG. 2 and FIG. 3, so that the opening 6a on the side of the first housing portion 16 is opened. In the same manner, the control device 11 controls the second
By moving the valve member 8 forward and backward, the opening of the opening 6a is adjusted to an opening suitable for piercing and other processing conditions.
こうして、制御装置11によって研磨材18の選択と開口
部6aの開度の調整が完了したら、上記高圧ポンプ２から
の高圧の液体が吐出されるので、高圧の液体内に適切な
供給量の研磨材18が混合されてから被加工物に向けて噴
射され、ピアッシング加工が行われる。上述のように、
本実施例では、被加工物に対するピアッシング加工時に
おいては、例えば第３図に示すように、第２弁部材８の
長穴8aを介して開口部6aの開度を小さくして、液体に混
合させる研磨材の供給量を少なくしているので、ピアッ
シング加工中の被加工物が噴射される高圧の液体によっ
て破損するようなことがない。When the selection of the abrasive 18 and the adjustment of the opening degree of the opening 6a are completed by the control device 11, the high-pressure liquid is discharged from the high-pressure pump 2 so that an appropriate amount of polishing is performed in the high-pressure liquid. After the material 18 is mixed, it is sprayed toward the workpiece, and piercing is performed. As mentioned above,
In this embodiment, at the time of piercing of the workpiece, for example, as shown in FIG. 3, the opening degree of the opening 6a is reduced through the elongated hole 8a of the second valve member 8 to mix the liquid. Since the amount of the abrasive to be supplied is reduced, the workpiece during the piercing process is not damaged by the injected high-pressure liquid.
制御装置11は予め定めたピアッシング加工時間が経過
したら、或いは適宜のセンサによってピアッシング加工
が終了したことを検出したら、切断加工に移行する。こ
の場合には、制御装置11は第２弁部材８を第３図の想像
線の位置まで前進させて第２弁部材８の長穴8aの中央部
と上記開口部6aとを重合させるので、該開口部6aの開度
は切断加工に好適な大きな開度に調整され、この後、被
加工物に所要の切断加工が施される。The control device 11 shifts to cutting when a predetermined piercing time elapses or when the end of the piercing is detected by an appropriate sensor. In this case, the control device 11 advances the second valve member 8 to the position indicated by the imaginary line in FIG. 3 so that the central portion of the elongated hole 8a of the second valve member 8 and the opening 6a overlap. The opening of the opening 6a is adjusted to a large opening suitable for cutting, and thereafter, the workpiece is subjected to required cutting.
そして、被加工物の加工条件を変更して加工ヘッド１
から噴射する液体に混合させる研磨材の供給量を変更す
る場合には、変更した加工条件を制御装置11に入力すれ
ば、制御装置11は上述した要領で両弁部材７、８を開閉
制御して、上記研磨材タンク６の開口部6a、6bの開閉と
開度の調整と行うようになる。Then, the processing conditions of the workpiece are changed to change the processing head 1
When changing the supply amount of the abrasive to be mixed with the liquid to be ejected from the controller, the changed processing conditions are input to the controller 11, and the controller 11 controls the opening and closing of the two valve members 7, 8 in the manner described above. Thus, the opening and closing of the openings 6a and 6b of the abrasive tank 6 and the adjustment of the opening are performed.
このように、本実施例では、制御装置11が両弁部材
７、８を開閉制御して、上記研磨材タンク６の開口部6
a、6bの開閉と開度の調整とを自動的に行うので、被加
工物の加工条件を変更することに伴う液体内への研磨材
の供給量の調整作業を従来に比較して簡略化することが
できる。また、ピアッシング加工時と切断加工時とで液
体内への研磨材の供給量を変更するようにしているの
で、従来のように、液体内への研磨材の供給量が多すぎ
てピアッシング加工中の被加工物が破損するようなこと
がない。As described above, in the present embodiment, the control device 11 controls the opening and closing of the two valve members 7 and 8 so that the opening 6
The opening and closing of a and 6b and the adjustment of the opening are performed automatically, so the work of adjusting the amount of abrasive supplied into the liquid due to changing the processing conditions of the work piece is simplified compared to the past. can do. In addition, since the supply amount of the abrasive into the liquid is changed between the piercing process and the cutting process, as in the conventional case, the supply amount of the abrasive in the liquid is too large and the piercing process is performed. The workpiece is not damaged.
なお、上記実施例の研磨材タンク６では、２つの収容
部16、17を設けてそれぞれに異なる種類の研磨材18、19
を収容するようにしているが、従来周知のような単一の
収容部だけの研磨材タンク６にも本発明を適用すること
ができる。その場合には、弁部材７に連動させた駆動機
構としてのサーボモータ９および変換機構24の代わり
に、ON/OFF制御のエアシリンダを採用することができ
る。In addition, in the abrasive tank 6 of the above embodiment, two accommodating portions 16 and 17 are provided so that different types of abrasives 18 and 19 are respectively provided.
However, the present invention can also be applied to an abrasive tank 6 having only a single accommodating portion as conventionally known. In that case, an air cylinder of ON / OFF control can be adopted instead of the servomotor 9 and the conversion mechanism 24 as a drive mechanism linked to the valve member 7.
また、ピアッシング加工と切断加工とだけで開度を変
更すればよい場合には、弁部材８に連動させた駆動機構
としてのサーボモータ10および変換機構25の代わりに、
ON/OFF制御のエアシリンダを採用することができる。In addition, when the opening may be changed only by the piercing process and the cutting process, instead of the servomotor 10 and the conversion mechanism 25 as a driving mechanism linked to the valve member 8,
An ON / OFF control air cylinder can be used.
「発明の効果」 以上のように、本発明によれば、加工条件が変更され
るたびに研磨材の供給量の調整作業を作業者が行ってい
た従来の装置に比較すると、研磨材の供給量の調整作業
を簡略化することができるという効果が得られる。[Effects of the Invention] As described above, according to the present invention, the supply amount of the abrasive is smaller than that of the conventional apparatus in which the worker adjusts the supply amount of the abrasive every time the processing conditions are changed. The effect that the adjustment operation of the amount can be simplified can be obtained.
第１図は本発明の一実施例を示す断面図、第２図は第１
図に示す研磨材タンク６の断面図、第３図は第２図のII
I−III線に沿う要部の断面図である。 ２……高圧ポンプ、３……液体通路 ４……ノズル、６……研磨材タンク 6a,6b……開口部、７……第１弁部材 ８……第２弁部材 ９、10……サーボモータ（駆動機構） 11……制御装置、18、19……研磨材FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG.
2 is a sectional view of the abrasive tank 6 shown in FIG.
It is sectional drawing of the principal part which follows the I-III line. 2 ... High pressure pump, 3 ... Liquid passage 4 ... Nozzle, 6 ... Abrasive tank 6a, 6b ... Opening, 7 ... First valve member 8 ... Second valve member 9, 10 ... Servo Motor (drive mechanism) 11… Control device, 18, 19 …… Abrasive
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平２−71976（ＪＰ，Ａ) 特開 平１−183369（ＪＰ，Ａ) 特開 昭63−207595（ＪＰ，Ａ) 特開 平１−257565（ＪＰ，Ａ) 特開 平２−145260（ＪＰ，Ａ) (58)調査した分野(Int.Cl.6，ＤＢ名) B24C 7/00 B24C 5/02──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-71976 (JP, A) JP-A-1-183369 (JP, A) JP-A-63-207595 (JP, A) JP-A-1- 257565 (JP, A) JP-A-2-145260 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) B24C 7/00 B24C 5/02
Claims (1)
通路を介して上記高圧ポンプと連通し、被加工物にむけ
て高圧の液体を噴射するノズルと、上記液体通路と連通
して高圧の液体に混合させる研磨材を収容する研磨材タ
ンクとを備え、上記研磨材を混合した高圧の液体を被加
工物に噴射して該被加工物に所要の切断加工を施すウォ
ータジェット加工機において、 上記研磨材タンクの開口部に該開口部を開閉する弁機構
を設けるとともに、この弁機構にこれを開閉作動させる
駆動機構を接続し、さらに上記被加工物の加工条件に応
じ上記駆動機構を制御して上記開口部の開度を調整する
制御装置を設け、また、上記弁機構を、板状部材からな
り所定位置に貫通孔を備えて、研磨材タンクに進退動可
能に設けた第１弁部材と、板状部材からなり所定位置に
貫通孔を備えて、上記第１弁部材と摺動して進退動可能
に設けた第２弁部材とから構成し、さらに、上記第１弁
部材を、その貫通孔が研磨材タンクの開口部に重合する
開放位置と重合しない閉鎖位置とに移動させる第１駆動
手段を設けるとともに、上記第２弁部材を所要量だけ移
動させて、該第２弁部材の貫通孔が、上記開放位置に位
置した第１弁部材の貫通孔と重合する量を調整する第２
駆動手段とを設け、これら第１駆動手段と第２駆動手段
とで上記駆動機構を構成したことを特徴とするウォータ
ジェット加工機。1. A high-pressure pump for discharging high-pressure liquid, a nozzle for communicating with the high-pressure pump through a liquid passage, and for ejecting high-pressure liquid toward a workpiece, and a high-pressure pump for communicating with the liquid passage. An abrasive tank for containing an abrasive to be mixed with a liquid, and a water jet processing machine for injecting a high-pressure liquid mixed with the abrasive to a workpiece to perform a required cutting process on the workpiece. A valve mechanism for opening and closing the opening is provided at the opening of the abrasive tank, and a drive mechanism for opening and closing the valve mechanism is connected to the valve mechanism, and the drive mechanism is further operated according to processing conditions of the workpiece. A first control device for controlling the opening degree of the opening by controlling the opening degree, and the valve mechanism is formed of a plate-like member, provided with a through hole at a predetermined position, and provided to the abrasive tank so as to be capable of moving forward and backward. It consists of a valve member and a plate member. And a second valve member provided with a through hole at a predetermined position and slidably movable forward and backward. The first valve member further has a through hole formed of an abrasive material. A first driving means for moving the opening position of the tank to the open position where it overlaps and a closed position where it does not overlap is provided, and the second valve member is moved by a required amount so that the through hole of the second valve member is The second for adjusting the amount of overlap with the through hole of the first valve member located at the open position
A water jet machine comprising a driving means, wherein the first driving means and the second driving means constitute the driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2267811A JP2778242B2 (en) | 1990-10-05 | 1990-10-05 | Water jet processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2267811A JP2778242B2 (en) | 1990-10-05 | 1990-10-05 | Water jet processing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04146080A JPH04146080A (en) | 1992-05-20 |
| JP2778242B2 true JP2778242B2 (en) | 1998-07-23 |
Family
ID=17449935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2267811A Expired - Fee Related JP2778242B2 (en) | 1990-10-05 | 1990-10-05 | Water jet processing machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2778242B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000059124A (en) * | 2000-07-14 | 2000-10-05 | 김승태 | The refinishing process of furniture and timber for recycling and the mixed abrasives for the process |
| JP5187498B2 (en) * | 2008-01-18 | 2013-04-24 | 株式会社日立プラントテクノロジー | Operation method of blasting equipment |
| JP5205481B2 (en) * | 2011-02-02 | 2013-06-05 | 株式会社スギノマシン | Abrasive water jet machine |
| JP5766493B2 (en) * | 2011-04-13 | 2015-08-19 | 三菱重工業株式会社 | Abrasive water jet processing equipment |
| US9573289B2 (en) | 2013-10-28 | 2017-02-21 | Flow International Corporation | Fluid jet cutting systems |
| CN107199516B (en) * | 2017-08-04 | 2018-11-30 | 安徽理工大学 | A kind of device based on the Premixed Abrasive Water Jet cutting curved surface plate in uneven thickness |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63207595A (en) * | 1987-02-19 | 1988-08-26 | 株式会社小松製作所 | Method of controlling liquid jet cutter |
| JPH0271976A (en) * | 1988-09-06 | 1990-03-12 | Sanyo Mach Works Ltd | Abrasive/water/jetting device |
-
1990
- 1990-10-05 JP JP2267811A patent/JP2778242B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04146080A (en) | 1992-05-20 |
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