JPS6328725B2 - - Google Patents
Info
- Publication number
- JPS6328725B2 JPS6328725B2 JP57223905A JP22390582A JPS6328725B2 JP S6328725 B2 JPS6328725 B2 JP S6328725B2 JP 57223905 A JP57223905 A JP 57223905A JP 22390582 A JP22390582 A JP 22390582A JP S6328725 B2 JPS6328725 B2 JP S6328725B2
- Authority
- JP
- Japan
- Prior art keywords
- drill
- cutting
- rotation speed
- workpiece
- control valve
- 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
Links
- 238000005553 drilling Methods 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 12
- 239000012530 fluid Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/09—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool
- B23Q17/0904—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring cutting pressure or for determining cutting-tool condition, e.g. cutting ability, load on tool before or after machining
- B23Q17/0919—Arrangements for measuring or adjusting cutting-tool geometry in presetting devices
- B23Q17/0947—Monitoring devices for measuring cutting angles
Description
【発明の詳細な説明】
本発明は、ドリルを備えた穿孔加工機の制御装
置に係り、さらに詳細には、ドリルが被加工材を
貫通する際に大きなばりを発生することのないよ
うにドリルの送りをほぼ一定の切削送りに制御す
る制御装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control device for a drilling machine equipped with a drill, and more specifically, the present invention relates to a control device for a drilling machine equipped with a drill. This invention relates to a control device that controls the feed of the cutting material to a substantially constant cutting feed.
従来第１図、第２図に例示したような形鋼など
の孔あけ機においては、ドリルの回転速度を一定
にして形鋼に対する早送り、切削送り、戻り移動
を自動的に制御するバルブ類を使う方法が採られ
ていた。このバルブ類はドリル自体が受ける被加
工材の切削抵抗に基づいていたために、例えばド
リルの先端部（チゼルエツジ）が被加工材を僅か
に貫通した状態から、先端切刃とドリルの外周
（周刃）との交わつたかどである外周コーナの部
分が完全に充分に貫通する間隙には、切削抵抗が
減少してドリルの送り速度が急激に切削送りから
早送りに変わつてしまうため、大きなバリが発生
したり、ドリルがチツピングをおこしたり、その
ためにドリルの寿命が短くなるなどの不都合があ
つた。 Conventional drilling machines for shaped steel, such as those shown in Figures 1 and 2, have been equipped with valves that automatically control the rapid feed, cutting feed, and return movement of the shaped steel while keeping the rotational speed of the drill constant. A method was adopted to use it. These valves are based on the cutting resistance of the workpiece material that the drill itself receives, so for example, when the tip of the drill (chisel edge) slightly penetrates the workpiece material, the tip cutting edge and the outer periphery of the drill (circumferential edge) ), large burrs are generated in the gap where the outer corner corner is completely and fully penetrated, as the cutting force decreases and the drill feed rate suddenly changes from cutting feed to rapid feed. There were disadvantages such as the drill chipping, which shortened the life of the drill.
また材質及びドリルの径の他にドリルの適正回
転速度の設定まで作業者が入力しなければならな
かつたからドリル作業に熟練した作業者である必
要があつたのである。 In addition, the operator had to input information such as the material and diameter of the drill as well as the appropriate rotational speed of the drill, which required the operator to be skilled in drilling operations.
本発明は上記した従来の穿孔機の不都合を解消
すべくなされたもので、以下に図面にもとづいて
その好適実施例を詳細に説明する。 The present invention has been made to solve the above-mentioned disadvantages of conventional drilling machines, and preferred embodiments thereof will be described in detail below based on the drawings.
第１図、第２図は本発明を実施した形鋼穿孔機
１を示したもので、機台３に送材用ローラコンベ
アー装置５を備え、ローラコンベアー装置５の１
部に送材位置決め装置７が設けてあつて、第２図
に例示したＨ形鋼９の一方のフランジ下端を把持
して、流体圧シリンダー１１で移動位置決めを行
い、穿孔機１の基準側固定バイス１３に押しつけ
て固定した後に、縦ドリル１５、左側ドリル１
７、右側ドリル１９を左右、上下に位置を定めて
から、穿孔作業を行うのである。 1 and 2 show a section steel drilling machine 1 embodying the present invention, in which a machine base 3 is equipped with a roller conveyor device 5 for feeding material, and one of the roller conveyor devices 5 is equipped with a roller conveyor device 5 for feeding material.
A material feed positioning device 7 is provided in the section, and the lower end of one flange of the H-section steel 9 illustrated in FIG. After pressing and fixing in the vise 13, insert the vertical drill 15 and the left drill 1.
7. Perform drilling work after positioning the right drill 19 horizontally, vertically, and vertically.
第３図は本発明の実施例の１部である記憶装置
部２１、演算処理部２３、データ入力装置部２５
と、演算処理部２３からの信号が、縦ドリル１
５、左側ドリル１７、右側ドリル１９のインバー
タ２７−Ｖ，２７−Ｌ，２７−Ｒと、それぞれの
電磁式制御弁２９−Ｖ，２９−Ｌ，２９−Ｒへ導
かれる状態とをブロツク図で示したものである。 FIG. 3 shows a storage device section 21, an arithmetic processing section 23, and a data input device section 25, which are part of an embodiment of the present invention.
, the signal from the arithmetic processing unit 23 is transmitted to the vertical drill 1.
5. A block diagram showing the inverters 27-V, 27-L, 27-R of the left drill 17 and right drill 19, and the state in which they are guided to the respective electromagnetic control valves 29-V, 29-L, 29-R. This is what is shown.
即ち記憶装置部２１には、被加工材の材質と熱
処理状態、ドリルの標準回転周速度ｖ、ドリルの
直径ｄ、ドリルの標準的な１回転当りの切込量ｓ
とドリルの径ｄとの比を切削定数として多数のデ
ータを記憶させてあり、同時に演算処理部２３で
演算する式をも記憶させてある。 That is, the storage unit 21 stores information such as the material and heat treatment state of the workpiece, the standard rotational circumferential speed v of the drill, the diameter d of the drill, and the standard cutting depth s per rotation of the drill.
A large amount of data is stored with the ratio of d and the diameter of the drill as a cutting constant, and at the same time, formulas to be calculated by the calculation processing section 23 are also stored.
例えば周波数ＦHzを求める式は ドリルの周速；vm／min ドリルの１回転当りの切込量；Ｓmm ドリルの直径；ｄmm とした時に（60Hz地区で４極透導モータの場合） Ｆ＝（スピンドル回転数）×（ギヤー比） ×（周波数）÷（モータ回転数） で与えられるから Ｆ＝（ｖ×1000）÷（π×ｄ）×ギヤー比 （１定数）×（60÷1800） Ｆ＝C1×ｖ÷ｄ（C1は定数） となる。 For example, the formula for determining the frequency FHz is: Peripheral speed of the drill; vm/min; Depth of cut per rotation of the drill; Smm; Diameter of the drill; dmm (for a 4-pole transparent motor in the 60Hz area) F = (spindle Since it is given by (rotation speed) x (gear ratio) x (frequency) ÷ (motor rotation speed), F = (v x 1000) ÷ (π x d) x gear ratio (1 constant) x (60 ÷ 1800) F = C 1 ×v÷d (C 1 is a constant).
上記の常数C1はギヤー比が穿孔機１の特定数
字であるからデータ入力部２５に入力した時点で
演算されて算出されるデジタル数であり、第３図
に記載を省略してあるＤ−Ａ変換器を通して電圧
のアナログ数に変換してインバータ２７に送り込
むことでスピンドル駆動モータに適正な回転周速
度を与えることができるのである。 Since the gear ratio is a specific number of the drilling machine 1 , the above constant C1 is a digital number calculated at the time of input to the data input section 25, and the description of the constant C1 is omitted in FIG. By converting the voltage into an analog voltage through the A converter and sending it to the inverter 27, it is possible to give the spindle drive motor an appropriate rotational circumferential speed.
上記したスピンドルの回転周速度と切削送りシ
リンダ３１の送り速度とは密接な関係があつて、
前記演算処理部２３では、データ入力部２５に入
力された同じデータによつて以下の演算を行つて
いる。 There is a close relationship between the rotational circumferential speed of the spindle described above and the feed speed of the cutting feed cylinder 31.
The calculation processing section 23 performs the following calculations using the same data input to the data input section 25.
今送りシリンダの送り速度；Um／min
ドリルの周速；vm／min
ドリルの１回転当りの切込量；Ｓmm
ドリル径；ｄmm
流量制御弁の流量；Qcc／min
シリンダの断面積；Ａcm2
としたとき、
Ｕ＝（ドリルの回転数）×（ドリルの１回転
当りの切り込み量）＝（1000×ｖ）÷
÷（π×ｄ）×（Ｓ×10-3）
＝（sv／πd）
Ｑ＝AU
＝Ａ×１／π×ｖ×ｓ／ｄ
＝C2×ｓ／ｄ×（C2は定数）
となり、データ入力部２５に材質と所望のドリル
径を入力した時点で演算処理が行われ、特定のデ
ジタル量が算出される。 Feed speed of the current feed cylinder; Um/min Peripheral speed of the drill; vm/min Amount of cut per revolution of the drill; Smm Drill diameter; dmm Flow rate of the flow control valve; Qcc/min Cross-sectional area of the cylinder; Acm 2 Then, U = (number of revolutions of the drill) × (amount of cut per revolution of the drill) = (1000 × v) ÷ ÷ (π × d) × (S × 10 -3 ) = (sv / πd) Q = AU = A x 1/π x v x s/d = C 2 x s/d x (C 2 is a constant), and the calculation process is performed when the material and desired drill diameter are input into the data input section 25. A specific digital quantity is calculated.
従つて第３図には図示を省略してあるＤ−Ａ変
換器を介してアナログ量の流量設定電圧を得て、
各ドリルの制御装置に伝達しそれぞれの電磁調整
弁２９−Ｖ，２９−Ｌ，２９−Ｒを自動的に最適
状態に制御している。 Therefore, an analog flow rate setting voltage is obtained via a D-A converter not shown in FIG.
The information is transmitted to the control device of each drill, and the respective electromagnetic regulating valves 29-V, 29-L, and 29-R are automatically controlled to the optimum state.
なお本実施例装置では、各ドリルにそれぞれ回
転周速度ｖを手動で指定するデジスイツチに切り
替えられるよう構成してあり、送り速度に関して
は０〜250％の範囲のオーバライド機能を持たせ
てあつて、前記した記憶装置部２１に入力してな
い被加工材に対応できるようにしてある。 The device of this embodiment is configured so that each drill can be switched to a digital switch for manually specifying the rotational circumferential speed v, and has an override function in the range of 0 to 250% for the feed speed. It is designed to be able to handle workpieces that have not been input to the storage device section 21 described above.
第４図は本実施例の油圧配管図の１部で、例示
した左側ドリル１７の切削送りシリンダ３１の排
油側には電磁式流量制御弁２９−Ｌが設けてあつ
て、第３図に示した演算処理部２３からの流量設
定電圧によつて自動的に流量が設定されている。 FIG. 4 is a part of the hydraulic piping diagram of this embodiment, and an electromagnetic flow control valve 29-L is provided on the oil drain side of the cutting feed cylinder 31 of the illustrated left drill 17. The flow rate is automatically set by the flow rate setting voltage from the arithmetic processing section 23 shown.
この電磁式流量制御弁２９−Ｌは、入力電圧あ
るいは入力電流に比例してオリフイスの開度を変
えて回路の流量を制御する流量制御弁で、圧力変
動があつても流量が変化しない圧力補償と温度補
償機能を備えている。また、切削送りシリンダ３
１への油路には圧力スイツチPS−２が設けてあ
る。この圧力スイツチPS−２はシリンダ３１の
圧力変化を検知し、ドリル１７の先端部が被加工
材を僅かに貫通した後に、ドリル１７の外周コー
ナが被加工材を充分に貫通したときにのみ制御信
号を発信するように適宜な制御回路に配設してあ
るものである。この圧力スイツチPS−２がドリ
ル１７が貫通したことを検知すると適宜時間経過
後に油路が切換り、ドリル１７は後退させられる
ものである。 This electromagnetic flow control valve 29-L is a flow control valve that controls the flow rate of the circuit by changing the opening degree of the orifice in proportion to the input voltage or input current, and is a pressure compensation valve that does not change the flow rate even if there is a pressure fluctuation. and a temperature compensation function. In addition, the cutting feed cylinder 3
A pressure switch PS-2 is provided on the oil path to the pressure switch PS-2. This pressure switch PS-2 detects the pressure change in the cylinder 31 and is controlled only when the tip of the drill 17 has slightly penetrated the workpiece and the outer peripheral corner of the drill 17 has sufficiently penetrated the workpiece. It is arranged in a suitable control circuit so as to transmit a signal. When this pressure switch PS-2 detects that the drill 17 has penetrated, the oil passage is switched after an appropriate period of time and the drill 17 is moved back.
なお上記した電磁式流量制御弁に変えて、サー
ボバルブやパルスモータとバルブを組合わせた流
量制御弁を使用することもできる。 Note that instead of the electromagnetic flow control valve described above, a servo valve or a flow control valve that combines a pulse motor and a valve may be used.
以上詳記した実施例は、作業員が被加工材の材
質と使用するドリルの径を入力することによつ
て、ドリルは自動的に最適回転周速で回転し、勝
つ最適な切削速度で切り込み移動を行うから、穿
孔作業に未熟な作業員でも効率の高い穿孔作業が
可能であり、被加工材の貫通間際にも従来の送り
抵抗の変化による送り速度変化を行なわないか
ら、バリの発生やドリルのチツピングがおこら
ず、きれいな孔加工が効率良く行なわれるととも
に工具寿命も長くできる効果を得たのである。 In the example detailed above, when the operator inputs the material of the workpiece and the diameter of the drill to be used, the drill automatically rotates at the optimum circumferential speed and cuts at the optimum cutting speed. Since the movement is performed, even workers who are inexperienced in drilling can perform highly efficient drilling, and since the feed speed does not have to be changed due to the conventional change in feed resistance even when the workpiece is about to be penetrated, it is possible to prevent burrs from forming. This has the effect of eliminating chipping of the drill, allowing efficient drilling of clean holes, and extending the life of the tool.
以上のごとき実施例の説明より理解されるよう
に、本発明は特許請求の範囲に記載のとおりであ
るから、本発明によれば、流体圧シリンダの駆動
によつてドリルの送りを行つて、被加工材に穿孔
加工を行うとき、流体圧シリンダの排出路側に配
設された流量制御弁によつて制御されたほぼ一定
の切削送り速度でもつてドリルが被加工材を充分
に貫通した後に、ドリルの後退を行うことができ
るものである。 As can be understood from the above description of the embodiments, the present invention is as described in the claims.According to the present invention, the drill is fed by driving the fluid pressure cylinder, When drilling a hole in a workpiece, after the drill has sufficiently penetrated the workpiece at a nearly constant cutting feed rate controlled by a flow control valve disposed on the discharge path side of the hydraulic cylinder, This allows the drill to be retracted.
したがつて、流体圧シリンダでもつてドリルの
送りを行うとき、ドリルが被加工材を貫通したと
きに切削抵抗の変化によつて流体圧シリンダ内の
圧力変動があるにもかかわらず、流量制御弁によ
つて制御されるほぼ一定の切削送り速度でもつて
ドリルの外周コーナの部分が被加工材を貫通する
ことができるものである。そのため、ドリルの先
端部（チゼルエツジ）が被加工材を僅かに貫通し
てから、ドリルの外周コーナが被加工材を貫通す
間において、ドリルの送り速度が大きくなるよう
なことが全くなく、大きなばりを発生したり、ド
リルがチツピングをおこすようなことがないもの
である。 Therefore, when a drill is fed using a hydraulic cylinder, the flow control valve is The outer corner portion of the drill can penetrate the workpiece even at a substantially constant cutting feed rate controlled by . Therefore, the feed rate of the drill does not increase at all between the time when the tip of the drill (chisel edge) slightly penetrates the workpiece and the outer peripheral corner of the drill penetrates the workpiece. It does not generate burrs or cause the drill to chip.
また、流体圧シリンダの排出路側に、制御装置
によつて制御される流量制御弁が配設してあるこ
とにより、流体圧シリンダに背圧が作用すること
となり、流体圧シリンダの暴走が防止され、ドリ
ルが被加工材に衝撃的に当接することによる折損
等を防止できるものである。 In addition, by disposing a flow rate control valve controlled by a control device on the discharge path side of the fluid pressure cylinder, back pressure acts on the fluid pressure cylinder, preventing the fluid pressure cylinder from running out of control. It is possible to prevent the drill from breaking due to impact contact with the workpiece.
第１図は本発明を実施した穿孔機の平面図、第
２図は同上正面図、第３図は制御装置をブロツク
式に示した説明図、第４図は本実施例装置の配管
図の１部である。
図面の主要な部分を表わす符号の説明、１……
穿孔機、１７……左側ドリル、２１……記憶装置
部、２３……演算処理部、２５……データ入力
部、２７……インバータ、２９……電磁式流量制
御弁。
Fig. 1 is a plan view of a drilling machine embodying the present invention, Fig. 2 is a front view of the same as above, Fig. 3 is an explanatory diagram showing the control device in block form, and Fig. 4 is a piping diagram of the device of this embodiment. This is part 1. Explanation of the symbols representing the main parts of the drawing, 1...
Drilling machine, 17...Left side drill, 21...Storage unit, 23...Arithmetic processing unit, 25...Data input unit, 27...Inverter, 29...Solenoid flow control valve.
Claims (1)
質のデータを入力するデータ入力装置部２５と、
被加工材の材質に対するドリルの標準回転周速度
ｖおよびドリルの１回転当りの切込量ｓとドリル
径ｄとの比の切削定数を予め記憶している記憶装
置部２１と、ドリルの進退作動を行なう流体圧シ
リンダ３１の排出路側に配設された流量制御弁２
９−Ｌと、前記データ入力装置部２５から入力さ
れたデータと前記記憶装置部２１に記憶されてい
る標準回転速度ｖおよび切削定数に基いて、ドリ
ルの回転速度と前記流量制御弁２９−Ｌの制御量
を演算する演算処理部２３と、演算処理部２３の
演算処理結果に基いてドリルの回転速度を制御す
る回転速度制御手段およびドリルが被加工材を充
分に貫通するまでドリルの送り速度をほぼ一定の
切削送り速度に制御すべく前記流量制御弁２９−
Ｌの流量を自動的に制御する制御装置と、を備え
てなることを特徴とする穿孔加工機の加工制御装
置。1. A data input device section 25 for inputting data on the drill diameter and material of the workpiece in the drilling machine;
A storage unit 21 that stores in advance the standard rotational circumferential speed v of the drill for the material of the workpiece and the cutting constant of the ratio of the cutting depth s per rotation of the drill to the drill diameter d, and the forward and backward movement of the drill. A flow control valve 2 disposed on the discharge path side of the fluid pressure cylinder 31 that performs
9-L, the data input from the data input device section 25, the standard rotation speed v and the cutting constant stored in the storage device section 21, the rotation speed of the drill and the flow rate control valve 29-L. a calculation processing section 23 that calculates the control amount; a rotation speed control means that controls the rotation speed of the drill based on the calculation processing result of the calculation processing section 23; and a rotation speed control means that controls the feed rate of the drill until the drill sufficiently penetrates the workpiece. The flow rate control valve 29- is used to control the cutting feed rate to a substantially constant cutting feed rate.
A processing control device for a drilling machine, comprising: a control device that automatically controls the flow rate of L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22390582A JPS59115109A (en) | 1982-12-22 | 1982-12-22 | Control method and device for processing work of drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22390582A JPS59115109A (en) | 1982-12-22 | 1982-12-22 | Control method and device for processing work of drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59115109A JPS59115109A (en) | 1984-07-03 |
| JPS6328725B2 true JPS6328725B2 (en) | 1988-06-09 |
Family
ID=16805541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22390582A Granted JPS59115109A (en) | 1982-12-22 | 1982-12-22 | Control method and device for processing work of drill |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59115109A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209450A (en) * | 1992-01-29 | 1993-08-20 | Yoshinori Okura | Rain-water gutter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62287903A (en) * | 1986-06-03 | 1987-12-14 | Morita Mfg Co Ltd | Drilling method and device therefor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5336585B2 (en) * | 1973-10-22 | 1978-10-03 | ||
| JPS53122192A (en) * | 1977-03-31 | 1978-10-25 | Amada Co Ltd | Device for automatically controlling drill feed |
| JPS5486887A (en) * | 1977-12-22 | 1979-07-10 | Toyoda Mach Works Ltd | Numerical controller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6035563Y2 (en) * | 1976-09-04 | 1985-10-22 | 株式会社安川電機 | Machine tool feed rate control device |
-
1982
- 1982-12-22 JP JP22390582A patent/JPS59115109A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5336585B2 (en) * | 1973-10-22 | 1978-10-03 | ||
| JPS53122192A (en) * | 1977-03-31 | 1978-10-25 | Amada Co Ltd | Device for automatically controlling drill feed |
| JPS5486887A (en) * | 1977-12-22 | 1979-07-10 | Toyoda Mach Works Ltd | Numerical controller |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05209450A (en) * | 1992-01-29 | 1993-08-20 | Yoshinori Okura | Rain-water gutter |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59115109A (en) | 1984-07-03 |
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