JPS5851053A - Automatic correction device for level of cutter - Google Patents
Automatic correction device for level of cutterInfo
- Publication number
- JPS5851053A JPS5851053A JP13981081A JP13981081A JPS5851053A JP S5851053 A JPS5851053 A JP S5851053A JP 13981081 A JP13981081 A JP 13981081A JP 13981081 A JP13981081 A JP 13981081A JP S5851053 A JPS5851053 A JP S5851053A
- Authority
- JP
- Japan
- Prior art keywords
- cutter
- correction
- circuit
- wear
- servo motor
- 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.)
- Pending
Links
- 238000012937 correction Methods 0.000 title abstract description 20
- 238000005259 measurement Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 5
- 238000012545 processing Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 7
- 230000002411 adverse Effects 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000012391 spindle elongation Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/182—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by the machine tool function, e.g. thread cutting, cam making, tool direction control
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/37—Measurements
- G05B2219/37252—Life of tool, service life, decay, wear estimation
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/50—Machine tool, machine tool null till machine tool work handling
- G05B2219/50313—Tool offset, tool wear
Abstract
Description
【発明の詳細な説明】
本発明は、ＮＣ工作機械の加工精度に悪影響をおよぼす
、主軸の伸び縮み、刃具摩耗を加工の途中で、自動測定
して自動補正する装置に関するものであシ、工作機械の
加工精度向上に関する屯のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device that automatically measures and automatically corrects spindle expansion/contraction and cutting tool wear during machining, which adversely affect the machining accuracy of NC machine tools. This is about improving machining accuracy of machines.
従来は、第１図に示すようにダイヤルゲージ２付の測定
具かまたは第２図に示すように基準スケール３、検出器
４を内蔵し、デジタルカウンタ５でカッタ１の先端位置
を測定していた。Conventionally, the tip position of the cutter 1 has been measured using a measuring instrument with a dial gauge 2 as shown in Fig. 1, or a digital counter 5 equipped with a reference scale 3 and a detector 4 as shown in Fig. 2. Ta.
しかしながらカッタ１の先端位置を補正する場合には、
その都度、オペレータがタイルなどを駆動させる等一連
の作業が必要であり、自動運転の支障となりていた。However, when correcting the tip position of cutter 1,
Each time, the operator had to perform a series of tasks, such as driving tiles, etc., which hindered automatic operation.
本発明は、加工精度に悪影響をおよぼす、主軸の伸び、
縮み、および刃具摩耗補正を自動的に行うよう忙し、従
来技術で述べたような、補正作業におけるオペレータの
介入を不要とした装置を提供することを目的とする。The present invention addresses the problem of spindle elongation, which adversely affects machining accuracy.
It is an object of the present invention to provide a device which automatically performs shrinkage and cutting tool wear corrections, and which eliminates the need for operator intervention in the correction operations, as described in the prior art.
この目的忙沿う本発明のカッタ自動高さ補正装置は、摺
動するスライド円筒に取付けられたスケールにより、カ
ッタ高さ位置を検出し補正開始信号により、加減算回路
、比較回路、切替回路、サーボドライブ回路、直流サー
ボモータを経由し、タイルを作動してカッタ高さ方向に
自動補正をかけるようＫしたものである。The automatic cutter height correction device of the present invention, which serves this purpose, detects the cutter height position using a scale attached to a sliding cylinder, and uses a correction start signal to control the addition/subtraction circuit, comparison circuit, switching circuit, and servo drive. The tile is operated via a circuit and a DC servo motor to automatically correct the height of the cutter.
以下、本発明のカッタ自動高さ補正装置の望ましい実施
例を図に従って説明する。Preferred embodiments of the automatic cutter height correction device of the present invention will be described below with reference to the drawings.
第３図は本実施例装置のカッタ位置検出部の構造を示し
、第４図はカッタ高さ調整の制御回路を示している。図
中、機械テーブル１０上に測定ベース１１がセットされ
ており、それに摺動するスライド円筒１２があり、スラ
イド円筒１２にはスケール１３が取付けられている。検
出ヘッド１４ｄ測定ベース１１に取付けられており、検
出ヘッド１４よシリード線１５が出ており、それが加減
算回路１６へとつながっている。スプリング１７によシ
スライド円筒１２は押し上げられており、ストップボル
ト１８をスライド円筒１２の溝１９にはめ込むことＫよ
シ上下動のストロークを制限しである。加減算回路１６
よ多信号は、該信号を基準値と比較して差分出力を出す
比較回Ｍ”２０．切替回路２１、サーボドライブ回路２
２を経て、直流サーボモータ２３にと順次つながってい
る。直流サーボモータ２３の軸には、タイル駆動シャフ
ト２４が連結されている。クイル２５の中にスピントン
ドル２６に取付けて゛ある。FIG. 3 shows the structure of the cutter position detection section of the apparatus of this embodiment, and FIG. 4 shows the control circuit for adjusting the cutter height. In the figure, a measurement base 11 is set on a machine table 10, and there is a slide cylinder 12 that slides thereon, and a scale 13 is attached to the slide cylinder 12. The detection head 14d is attached to the measurement base 11, and a series lead wire 15 comes out from the detection head 14, which is connected to an addition/subtraction circuit 16. The slide cylinder 12 is pushed up by the spring 17, and by fitting the stop bolt 18 into the groove 19 of the slide cylinder 12, the vertical stroke is limited. Addition/subtraction circuit 16
The multi-signal is compared with a reference value and a comparison circuit M"20.Switching circuit 21, servo drive circuit 2
2, and is sequentially connected to a DC servo motor 23. A tile drive shaft 24 is connected to the axis of the DC servo motor 23 . It is attached to a spindle 26 within the quill 25.
つぎに本発明装置の作用について説明する。Next, the operation of the device of the present invention will be explained.
まず加工を開始する前に、第６図に示す測定ベース１１
上Ｐ点にカッタ２８をセットし、その時の加減算回路１
６をリセットして、ＮＣ加ニスタートする。第５図に示
すような加工物２９の曲面加工はカッタ２８にて往復加
工するが切削途中でカッタ２８は摩耗し、クイル２５、
スピンドル２°６け、熱によシ伸び、縮みがあり、加工
物２９に悪影響をおよぼす。あらかじめＮＣテープの中
に折り込んでおいた補助機能により第６図のＰ点に自動
的にもどろようＫする。ここで補助機能とはアドレスに
続く２桁の数字で表わされ一般的にはスピンドル「回転
」、［停止ｊ、「クランプＪ１ 「アンクランプ、）等
がある。補助機能で装置のｒＸＪ ｒＹＪ ｒＺＪを
作動させることは少ないが容易に信号を取出すことがで
きるため補助機能使用で示している・Ｐ−点にセットし
たら補助機能完了信号（補正信号）が出て補正を開始す
る。補正信号がでると切替回路２１は、比較回路２０の
信号を受けるようになる。加減算回路１６の出力と、基
準値信号が同じ場合にはサーボドライブ回路２２には入
力がなく、直流サーボモータ２３は駆動されず、したが
ってクイル２５も作動されない。加減算回路１６の出力
と、基準値信号が異なる場合にはその方向と値が切替回
路２１１Ｃはいり、サーボドライブ回路２２を経て、直
流サーボモータ２３を駆動させて、クイル送りネジ２４
を経て、加減算回路１６の出力と、基準値信号が同じＫ
なる方向にクイル２５が上昇または下降し、補正を完了
させる。補正完了後、「補正完了信号」が出て切替回路
はもとにもどシまた、カッタ２８も再加工開始点（測定
開始した点）ＫもどりＮＣ加工を継続する。また、測定
によシ補正量がわかり、ＮＣＣコントローラ部演算でも
補正が可能であることは言うまで屯ない。なお、補正量
の限界値（カッタ摩耗量）をセットしておけば、「カッ
タ交換要」の信号も自動的に出すこともできる。First, before starting machining, the measurement base 11 shown in FIG.
Set the cutter 28 at the upper point P, and add/subtract circuit 1 at that time.
6 and start NC. The curved surface of the workpiece 29 as shown in FIG.
The spindle is 2 degrees 6 degrees, and there is elongation and shrinkage due to heat, which adversely affects the workpiece 29. It automatically returns to point P in Figure 6 using an auxiliary function that has been folded into the NC tape in advance. Here, the auxiliary function is represented by a two-digit number following the address, and generally includes spindle ``rotation'', [stop J, ``clamp J1 ``unclamp,'' etc.Auxiliary functions are rXJ rYJ rZJ of the device. Although it is rarely activated, the signal can be easily taken out, so it is shown as using the auxiliary function.When set to the P-point, the auxiliary function completion signal (correction signal) is output and correction starts.The correction signal is output. The switching circuit 21 receives the signal from the comparison circuit 20. If the output of the addition/subtraction circuit 16 and the reference value signal are the same, there is no input to the servo drive circuit 22, and the DC servo motor 23 is not driven. , therefore, the quill 25 is also not operated.If the output of the addition/subtraction circuit 16 and the reference value signal are different, the direction and value enter the switching circuit 211C, pass through the servo drive circuit 22, drive the DC servo motor 23, and drive the quill. Feed screw 24
The output of the addition/subtraction circuit 16 and the reference value signal are the same K
The quill 25 is raised or lowered in the direction shown in FIG. After the correction is completed, a "correction completion signal" is output, the switching circuit returns to its original state, and the cutter 28 also returns to the reprocessing start point (the point where measurement started) K to continue the NC processing. Furthermore, it goes without saying that the amount of correction can be determined by measurement, and correction can also be made by calculation in the NCC controller. Note that by setting a limit value for the amount of correction (amount of cutter wear), it is also possible to automatically issue a signal indicating that the cutter needs to be replaced.
本発明によるカッタ高さ自動調整装置は上記の構成、作
用を有するものであるから、本発明によるときはつぎの
効果が得られる。まず、オペレータの介入なしに自動的
忙測定、補正ができるので、オペレータコール時間がな
く、比較的停止時間が少□なくてすむ。また前もってＮ
Ｃテープに測定、補正の情報（簡単な補助機能）をセッ
トしておくだけで、主軸の伸び、縮み、刃具摩耗を補正
ｔた精密加工ができる。さらに刃具摩耗の限界値をセッ
トすれば刃具交換時期も知らせることができる。Since the cutter height automatic adjustment device according to the present invention has the above-described structure and operation, the following effects can be obtained according to the present invention. First, since busyness can be automatically measured and corrected without operator intervention, there is no operator call time and relatively little downtime. Also in advance N
By simply setting measurement and correction information (simple auxiliary functions) on the C-tape, precision machining that compensates for spindle elongation, shrinkage, and cutting tool wear is possible. Furthermore, by setting a limit value for cutter wear, it is possible to notify when it is time to replace the cutter.
第１図は従来法によるダイヤルゲージ付測定装置の正面
図、
第２図はモアレ縞を使用した従来方法による測定装置の
正面図、
第３図は本発明の一実施例に係る測定装置の正面図、
第４図は本発明の装置の補正回路のブロック線図、
第５図はワークの加工状態を示す概略斜視図、第６図は
本発明装置をＮＣ工作機に使用した場合の概略正面図、
である。
１１・・・測定ペース％１２・・・スライド円筒、１３
・・・スケール、１４・・・検出ヘッド、１６・・・加
減算回路、２０・・・比較回路、２１・・・切替回路、
２２・・・サーボドライブ回路、２３・・・直流サーボ
モータ、２５・・・クイル、２８・・・カッタ
第１図
第２図
第３図
第４図
第５図
第６図Fig. 1 is a front view of a measuring device with a dial gauge according to a conventional method, Fig. 2 is a front view of a measuring device according to a conventional method using Moire fringes, and Fig. 3 is a front view of a measuring device according to an embodiment of the present invention. Figure 4 is a block diagram of the correction circuit of the device of the present invention, Figure 5 is a schematic perspective view showing the machining state of a workpiece, and Figure 6 is a schematic front view of the device of the present invention when used in an NC machine tool. Figure, is. 11...Measurement pace %12...Slide cylinder, 13
...Scale, 14...Detection head, 16...Addition/subtraction circuit, 20...Comparison circuit, 21...Switching circuit,
22... Servo drive circuit, 23... DC servo motor, 25... Quill, 28... Cutter Fig. 1 Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6
Claims (1)
ライド円筒をスライド可能に取付け、測定ベースとスラ
イド円筒の何れか一方にスケールを他方にカッタ高さを
検出可能に検出ヘッドを取付け、該検出ヘッドを加減算
回路、カッタ高さを基準値と比較する比較回路、切替回
路、サーボドライブ回路、直流サーボモータへと順次接
続し、骸直流サーボモータをカッタを支持するクイルに
上下方向に駆動可能に連結したことを特徴とするカッタ
高さ自動調整装置。(1) A slide cylinder against which a cutter is pressed is slidably attached to the base, a scale is attached to one of the measurement base and the slide cylinder, and a detection head is attached to the other to detect the cutter height. An addition/subtraction circuit, a comparison circuit that compares the cutter height with a reference value, a switching circuit, a servo drive circuit, and a DC servo motor are connected in sequence, and the skeleton DC servo motor is connected to the quill that supports the cutter so that it can be driven in the vertical direction. An automatic cutter height adjustment device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13981081A JPS5851053A (en) | 1981-09-07 | 1981-09-07 | Automatic correction device for level of cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13981081A JPS5851053A (en) | 1981-09-07 | 1981-09-07 | Automatic correction device for level of cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5851053A true JPS5851053A (en) | 1983-03-25 |
Family
ID=15253964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13981081A Pending JPS5851053A (en) | 1981-09-07 | 1981-09-07 | Automatic correction device for level of cutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5851053A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008207391A (en) * | 2007-02-23 | 2008-09-11 | Tokai Chem Ind Ltd | Method and apparatus for trimming foamed urethane molding |
-
1981
- 1981-09-07 JP JP13981081A patent/JPS5851053A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008207391A (en) * | 2007-02-23 | 2008-09-11 | Tokai Chem Ind Ltd | Method and apparatus for trimming foamed urethane molding |
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