JP2000259218A - Method for preparing tool path for fast working - Google Patents

Method for preparing tool path for fast working

Info

Publication number
JP2000259218A
JP2000259218A JP11057088A JP5708899A JP2000259218A JP 2000259218 A JP2000259218 A JP 2000259218A JP 11057088 A JP11057088 A JP 11057088A JP 5708899 A JP5708899 A JP 5708899A JP 2000259218 A JP2000259218 A JP 2000259218A
Authority
JP
Japan
Prior art keywords
tool
path
radius
center
shape
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.)
Withdrawn
Application number
JP11057088A
Other languages
Japanese (ja)
Inventor
Takejiro Sano
竹次郎 佐野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP11057088A priority Critical patent/JP2000259218A/en
Publication of JP2000259218A publication Critical patent/JP2000259218A/en
Withdrawn legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To work even in a shape changing part without greatly decelerating the feed speed of a tool by calculating the path of a working tool between two points where a circular arc inscribes an edge along the contour of a cylinder obtained by making the difference between the circular arc and each radius of the working tool the radius of the cylinder with the tool center of a virtual tool as a center. SOLUTION: A point sequence for obtaining a tool path 24 being a path in the working direction of a tool center 23 of a used tool 22 along the surface of a shape 21 is calculated. The bent part 25 of the shape 21 in the path 24 and the range A of the bent part being a range where the working of its neighborhood is performed are calculated. Then, points included in the range A of the bent part are detected out of the point sequence constituting the path 24. Next, in the range A of the bent part, the path of a virtual tool along the edge of the bent part, i.e., the locus of the tool center of the virtual tool is calculated. The tool center 23 of the tool 22 along the point sequence is calculated to prepare the path 24, and in the range A of the bent part, a tool path is also prepared along the outer circumference of a cylinder of a radius with the position of the tool center of the virtual tool as a center.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、金型などの製品を
NC(数値制御)工作機械により高速加工する際の、加
工工具の経路、特に凹凸形状部分を加工する際のよう
な、工具の送りに上下方向の変化を伴う場合における工
具の経路を求める方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool path for machining a product such as a mold by an NC (Numerical Control) machine tool, especially for machining an uneven portion. The present invention relates to a method of obtaining a tool path in a case where a feed involves a change in the vertical direction.

【0002】[0002]

【従来の技術】現在、金型などの自由曲面(平面を含
む)で構成される製品をNC工作機械を用いて高速加工
するに際しては、製品の形状モデルからその形状に沿う
ような工具経路を作成し、その経路に沿ってボールエン
ドミルなどの工具を移動させて切削加工を行う形状沿い
加工が行われる。
2. Description of the Related Art At present, when a product constituted by a free-form surface (including a plane) such as a die is machined at high speed by using an NC machine tool, a tool path along the shape is taken from a shape model of the product. It is created and processed along the shape of performing cutting by moving a tool such as a ball end mill along the path.

【0003】かかる形状沿い加工においては、加工する
形状に応じて工具の送り速度を加減速する制御を行って
いるが、形状が変化する箇所、例えば凸型形状の立ち上
がり部分や、凹部などを加工する場合、工具の送りに上
下方向の変位が生じるなど工具の動作が急激に変化する
こととなるため、工具の送り速度を減速させなければな
らない。そのため、こうした箇所における工具送り速度
の減速が製品加工全体の速度に影響する場合がある。
In machining along such a shape, control is performed to accelerate or decelerate the feed speed of the tool according to the shape to be machined. However, a portion where the shape changes, for example, a rising portion of a convex shape or a concave portion is machined. In such a case, since the operation of the tool changes abruptly, for example, a vertical displacement occurs in the feed of the tool, the feed speed of the tool must be reduced. Therefore, the reduction of the tool feed speed at such a location may affect the speed of the entire product processing.

【0004】[0004]

【発明が解決しようとする課題】本発明は上記の問題点
を解決し、形状変化部分においても工具の送り速度を大
きく減速させることなく加工することのできる、工具経
路の作成方法を提案するものである。
SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and proposes a method of creating a tool path which can perform machining without greatly reducing the feed speed of a tool even in a shape change portion. It is.

【0005】[0005]

【課題を解決するための手段およびその作用・効果】上
記の問題点を解決するため、本発明は、所定の形状を有
する製品形状モデルから、当該製品形状を加工するため
の工具経路の作成において、前記製品形状モデル中の、
下方に凸となる折れ部での工具経路の作成に際し、前記
折れ部の稜線と2点で内接する、加工工具の半径よりも
大きい値を半径とする円弧を求めるステップと、前記円
弧に等しい半径を有する仮想工具の工具中心の軌跡を前
記折れ部の稜線に沿って求めるステップと、前記円弧が
前記稜線と内接する2点間での前記加工工具の経路を、
前記仮想工具の工具中心を中心とし、前記円弧の半径と
前記加工工具の半径との差の値を半径とする円筒の輪郭
線に沿って求めるステップとを具えることを特徴とする
ものである。
SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides a method for creating a tool path for machining a product shape from a product shape model having a predetermined shape. , In the product shape model,
A step of obtaining an arc having a value larger than the radius of the processing tool, which is inscribed at two points with the ridge line of the bent portion, when creating a tool path at the bent portion that is convex downward, and a radius equal to the arc Determining the trajectory of the tool center of the virtual tool along the ridgeline of the bent portion, and the path of the machining tool between two points where the arc inscribes the ridgeline,
Determining along a contour of a cylinder having a tool center of the virtual tool as a center and a value of a difference between the radius of the circular arc and the radius of the machining tool as a radius. .

【0006】すなわち、本発明による高速加工用工具経
路の作成方法においては、形状変化部分、特に下方に凸
となる折れ部、例えば凸型形状の立ち上がり部分や、凹
部の加工のための工具経路を、当該折れ部に円弧をかけ
て滑らかなものとする。それによって工具の送り速度の
減速を小さくすることができる。したがって、複雑な形
状を有する製品の加工が高速かつ効率良く行うことが可
能となる。
That is, in the method of forming a tool path for high-speed machining according to the present invention, a tool path for machining a shape-changed portion, particularly a bent portion that is convex downward, for example, a rising portion having a convex shape or a concave portion is formed. An arc is applied to the bent portion to make it smooth. As a result, the reduction in the feed speed of the tool can be reduced. Therefore, it is possible to process a product having a complicated shape at high speed and efficiently.

【0007】本発明に係る方法の好適な実施形態におい
ては、加工工具の移動方向が前記折れ部の折れ曲がり方
向に沿って上下方向に変化する場合に、前記加工工具の
経路を求めることを特徴とする。
In a preferred embodiment of the method according to the present invention, the path of the working tool is obtained when the moving direction of the working tool changes vertically along the bending direction of the bent portion. I do.

【0008】すなわち、本発明による高速加工用工具経
路の作成方法においては、工具の移動方向が製品の形状
変化の方向に沿って上下方向の変化を伴う場合にのみ、
前述したような滑らかな工具経路を作成し、それ以外の
場合には前述した工具経路の作成は行わない。それによ
って、不必要な処理を行うことなく、工具経路の作成お
よびこの経路に沿った加工を行うことが可能となる。
That is, in the method for creating a tool path for high-speed machining according to the present invention, only when the moving direction of the tool involves a change in the vertical direction along the direction of the change in the shape of the product,
A smooth tool path as described above is created, and otherwise, the above-described tool path is not created. This makes it possible to create a tool path and perform machining along this path without performing unnecessary processing.

【0009】[0009]

【発明の実施の形態】以下、図面を参照して本発明の好
適な実施形態について説明する。
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

【0010】図1は、本発明による工具経路の作成手順
を示すフローチャートである。以下、本図を参照してそ
の手順を説明する。
FIG. 1 is a flowchart showing a procedure for creating a tool path according to the present invention. Hereinafter, the procedure will be described with reference to FIG.

【0011】まず、ステップ11で、所望の製品の形状モ
デルに沿った加工を行うために使用するボールエンドミ
ルなどの工具(使用工具)についての、当該形状に沿っ
た経路(工具経路)を計算により求めるための点列を作
成する。この点列は、製品形状全体について作成するも
のとする。続くステップ12で、形状モデル中に含まれる
折れ部、例えば凸型形状の立ち上がり部分や凹部を検出
する。なお、これらステップの処理は、従来より行われ
ている処理手順を用いる。
First, in step 11, a path (tool path) along a shape of a tool (used tool) such as a ball end mill used for performing processing along a shape model of a desired product is calculated. Create a sequence of points to find. This point sequence is created for the entire product shape. In the following step 12, a bent portion included in the shape model, for example, a rising portion or a concave portion of a convex shape is detected. Note that the processing of these steps uses a processing procedure conventionally performed.

【0012】次のステップ13では、前のステップ11で求
めた点列の中から、ステップ12で求めた折れ部の範囲に
含まれる点を検出し、該当する全ての点に関するデータ
として、その点が折れ部の範囲内にある旨の情報を付加
する。これは、後の処理において、折れ部の加工をする
ための工具経路を作成するために、作成する経路の対象
となる点(範囲)を指定するためである。
In the next step 13, points included in the range of the bent portion obtained in the step 12 are detected from the point sequence obtained in the previous step 11, and the data relating to all corresponding points are detected. Is added within the range of the bent portion. This is to specify a point (range) to be a target of the path to be created in order to create a tool path for processing a bent portion in a later process.

【0013】上記各ステップを具体的に示すと以下のよ
うになる。すなわち、ステップ11では、図2に示すよう
に、形状21の表面に沿った使用工具22の工具中心23の、
図に矢印で示す加工方向の経路(工具経路)24を得るた
めの点列を求める。なお、図では形状21の折れ部25近傍
のみを示しているが、工具経路24を得るための点列は形
状21全体について求めるものとする。さらにステップ12
では工具経路24中で形状21の折れ部25とその近傍の加工
を行う範囲(折れ部の範囲)Aを求め、ステップ13では
前記工具経路24を構成する点列の中から前記折れ部の範
囲Aに含まれる点を検出する。
Each of the above steps is specifically described as follows. That is, in step 11, as shown in FIG. 2, the tool center 23 of the tool 22 used along the surface of the shape 21 is
A sequence of points for obtaining a path (tool path) 24 in the processing direction indicated by an arrow in the figure is obtained. Although only the vicinity of the bent portion 25 of the shape 21 is shown in the drawing, a sequence of points for obtaining the tool path 24 is obtained for the entire shape 21. Step 12
In the tool path 24, a bent portion 25 of the shape 21 and a range (a range of the bent portion) A in which machining is performed in the vicinity thereof are determined. In step 13, the range of the bent portion is determined from a point sequence forming the tool path 24. A point included in A is detected.

【0014】続くステップ14では、前記折れ部の範囲に
おいて、当該折れ部の稜線に沿った仮想工具の経路、す
なわち当該仮想工具の工具中心の軌跡を求める。この仮
想工具の大きさは、実際の加工に使用する使用工具の工
具半径rに、所定の長さRを加えた半径r+Rとする。
なお、このRの値は任意に設定可能とするが、半径r+
Rの円が折れ部の稜線と2点で接するように設定するも
のとする。このように円、すなわち仮想工具を設定した
後、この仮想工具の工具中心を折れ部の幅方向、すなわ
ち使用工具の工具経路と直角な方向に移動させ、その移
動の軌跡を求める。
In the following step 14, the path of the virtual tool along the ridge line of the bent portion, that is, the locus of the tool center of the virtual tool is obtained in the range of the bent portion. The size of this virtual tool is a radius r + R obtained by adding a predetermined length R to a tool radius r of a tool used for actual machining.
Although the value of R can be set arbitrarily, the radius r +
It is assumed that the circle of R is set to be in contact with the ridge line of the bent portion at two points. After setting the circle, that is, the virtual tool, the tool center of this virtual tool is moved in the width direction of the bent part, that is, in the direction perpendicular to the tool path of the tool to be used, and the locus of the movement is obtained.

【0015】具体的には、まず、図3(a) に示すように
形状21の折れ部25近傍における表面に2点C1 ,C2
内接する半径r+Rの内接円26を設定する。次いでこの
内接円26の半径と等しい半径を有し、中心27を工具中心
とする仮想工具28を仮定し、この仮想工具28を形状21の
幅方向、すなわち工具経路24と直角な方向に移動させ
る。それによって図3(b) に示すように、仮想工具28の
前記移動に沿った工具中心の位置29,30が随時定まり、
それによって軌跡31が求められる。
Specifically, first, as shown in FIG. 3A, an inscribed circle 26 having a radius r + R inscribed at two points C 1 and C 2 is set on the surface near the bent portion 25 of the shape 21. Next, assuming a virtual tool 28 having a radius equal to the radius of the inscribed circle 26 and having the center 27 as the tool center, the virtual tool 28 is moved in the width direction of the shape 21, that is, in a direction perpendicular to the tool path 24. Let it. Thereby, as shown in FIG. 3B, the positions 29 and 30 of the tool center along the movement of the virtual tool 28 are determined at any time,
Thereby, the trajectory 31 is obtained.

【0016】次のステップ15では、前記点列に沿った使
用工具の工具中心を求めて工具経路を作成すると共に、
折れ部の範囲においては、前のステップ14で求めた仮想
工具の工具中心の位置を中心とする半径Rの円筒の外周
に沿うように工具経路を作成する。以上の手順によっ
て、使用工具の経路が求められる。
In the next step 15, a tool path is created by obtaining the tool center of the tool to be used along the point sequence,
In the range of the bent portion, a tool path is created along the outer circumference of a cylinder having a radius R centered on the position of the tool center of the virtual tool obtained in the previous step 14. Through the above procedure, the path of the tool to be used is obtained.

【0017】これを具体的に示すと、ステップ15は、図
4に示すように、使用工具(工具半径r)32の経路33を
求めるものであるが、形状21の折れ部25とその近傍にお
ける工具経路は、点34を中心とする半径Rの円35の外周
に沿って作成する。なお、この中心点34とは、先のステ
ップ14で求めた仮想工具28の工具中心27である。その結
果、使用工具32の先端部は、折れ部25付近を、半径r+
Rの円弧を経路として加工することとなる。なお、この
場合、削り残し部36が発生することとなるが、この箇所
は後に工具32よりも小さい工具半径を有する工具によっ
て加工する。
Specifically, as shown in FIG. 4, step 15 is for obtaining a path 33 of a tool (tool radius r) 32, as shown in FIG. The tool path is created along the outer circumference of a circle 35 having a radius R centered on the point 34. Note that the center point 34 is the tool center 27 of the virtual tool 28 obtained in the previous step 14. As a result, the tip of the used tool 32 moves around the bent portion 25 with a radius r +
Processing is performed using the arc of R as a path. In this case, an uncut portion 36 occurs, but this portion is later processed by a tool having a smaller tool radius than the tool 32.

【0018】以上の手順によって工具経路を求めること
により、例えば図5(a) に示すような形状41の凸部の立
ち上がり箇所42近傍における使用工具43の経路44が、破
線で示す経路44' ではなく、実線で示すように滑らかな
円弧状をなすものとなる。また、図5(b)に示すような形
状45中の凹部46における使用工具47の経路48も、破線で
示す経路48' ではなく、滑らかな円弧状をなすものとな
る。それによって、加工時において、こうした形状変化
を生じる箇所においても工具送り速度を大きく減少させ
ることなく加工を行うことができるようになる。
By obtaining the tool path by the above procedure, for example, the path 44 of the tool 43 used near the rising point 42 of the convex portion of the shape 41 as shown in FIG. Instead, it forms a smooth arc as shown by the solid line. Also, the path 48 of the tool 47 in the concave portion 46 in the shape 45 as shown in FIG. 5 (b) is not a path 48 'shown by a broken line but a smooth arc. Thus, at the time of machining, machining can be performed even at a place where such a shape change occurs without greatly reducing the tool feed speed.

【0019】図6は、上述した工具経路の作成におい
て、上述した処理手順により経路を作成するか否かの判
断を行う場合を示すものである。図6(a) では、形状50
中に存在する凸部51を加工する際の工具52の経路、特に
凸部51の立ち上がり箇所53(図では円弧をかけた状態で
示す)を通過する二つの場合について示している。
FIG. 6 shows a case where it is determined whether or not a path is to be created by the above-described processing procedure in the above-described tool path creation. In FIG. 6A, the shape 50
The drawing shows two paths that pass through the path of the tool 52 when machining the convex portion 51 existing therein, particularly the rising portion 53 of the convex portion 51 (shown in a state where an arc is applied in the figure).

【0020】まず工具52が経路A、すなわち立ち上がり
箇所(折れ部)53を経て凸部51を加工する経路を取る場
合には、図1に示した手順により、立ち上がり箇所53近
傍で円弧状の滑らかな経路を作成する。
First, when the tool 52 takes a path A, that is, a path for processing the convex portion 51 via the rising portion (bent portion) 53, a circular arc-shaped smooth portion near the rising portion 53 is obtained by the procedure shown in FIG. Create a simple route.

【0021】一方、工具52が経路B、すなわち凸部51の
側部を通過する経路を取る場合には、図1に示した手順
による経路の作成は行わない。これは、工具経路Bが単
に立ち上がり箇所53の側部を通過するのみで、上下方向
の変化を伴わないからである。それゆえ前述した処理手
順を用いて工具経路を作成する必要は無い。
On the other hand, when the tool 52 takes the path B, that is, the path passing the side of the convex portion 51, the path shown in FIG. 1 is not created. This is because the tool path B merely passes through the side of the rising point 53 and does not involve a change in the vertical direction. Therefore, there is no need to create a tool path using the processing procedure described above.

【0022】なお、これらの判断は、図1のステップ13
において行うものとする。
These determinations are made in step 13 of FIG.
Shall be performed.

【0023】以上説明したように、本発明によれば、形
状変化が生じる箇所の加工のための工具経路を滑らかな
ものとすることができ、当該箇所における工具送り速度
を大きく減速させることなく加工を行うことが可能とな
る。したがって、複雑な形状を有する製品の加工が高速
かつ効率良く行うことができるようになる。
As described above, according to the present invention, it is possible to make a tool path for machining a portion where a shape change occurs smooth, and to perform machining without greatly reducing the tool feed speed at the portion. Can be performed. Therefore, processing of a product having a complicated shape can be performed quickly and efficiently.

【図面の簡単な説明】[Brief description of the drawings]

【図1】 本発明による工具経路作成手順を示すフロー
チャートである。
FIG. 1 is a flowchart showing a tool path creation procedure according to the present invention.

【図2】 製品形状中の折れ部を通過する工具経路を示
す図である。
FIG. 2 is a diagram showing a tool path passing through a bent portion in a product shape.

【図3】 本発明による経路作成方法における仮想工具
と製品形状との関係を示す図である。
FIG. 3 is a diagram showing a relationship between a virtual tool and a product shape in the path creation method according to the present invention.

【図4】 本発明による方法を用いて使用工具の経路を
作成した状態を示す図である。
FIG. 4 is a diagram showing a state in which a path of a tool to be used has been created using the method according to the present invention.

【図5】 本発明による方法を用いて作成した工具経路
を示す図である。
FIG. 5 shows a tool path created using the method according to the invention.

【図6】 本発明による方法を適用する場合および適用
しない場合をそれぞれ示す図である。
FIG. 6 shows a case where the method according to the invention is applied and a case where it is not applied, respectively.

【符号の説明】 21,41,45,50 形状 22,32,43,47,52 使用工具 23 工具中心 24,33,44,48 工具経路 25 折れ部 26 折れ部の内接円 27 内接円の中心 28 仮想工具 29,30 仮想工具の工具中心 31 仮想工具の工具中心の軌跡 34 円の中心 35 点34を中心とする円 36 削り残し部 42 形状41中の凸部の立ち上がり箇所 46 形状45中の凹部 51 形状50中の凸部 53 凸部51の立ち上がり箇所[Explanation of symbols] 21, 41, 45, 50 Shape 22, 32, 43, 47, 52 Tool 23 Tool center 24, 33, 44, 48 Tool path 25 Bent part 26 Inscribed circle of broken part 27 Inscribed circle Center of virtual tool 29,30 Tool center of virtual tool 31 Locus of tool center of virtual tool 34 Center of circle 35 Circle centered on point 34 Uncut portion 42 Rise of convex part in shape 41 46 Shape 45 Concave part 51 Inside convex part 53 in shape 50 Rise point of convex part 51

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 所定の形状を有する製品形状モデルか
ら、当該製品形状を加工するための工具経路の作成にお
いて、 前記製品形状モデル中の、下方に凸となる折れ部での工
具経路の作成に際し、 前記折れ部の稜線と2点で内接する、加工工具の半径よ
りも大きい値を半径とする円弧を求めるステップと、 前記円弧に等しい半径を有する仮想工具の工具中心の軌
跡を前記折れ部の稜線に沿って求めるステップと、 前記円弧が前記稜線と内接する2点間での前記加工工具
の経路を、前記仮想工具の工具中心を中心とし、前記円
弧の半径と前記加工工具の半径との差の値を半径とする
円筒の輪郭線に沿って求めるステップと、 を具えることを特徴とする、高速加工用工具経路の作成
方法。
1. A method for creating a tool path for machining a product shape from a product shape model having a predetermined shape, the method comprising: creating a tool path at a bent portion that is convex downward in the product shape model. Obtaining an arc having a radius larger than the radius of the processing tool, which is inscribed at two points with the ridge line of the bent portion; and determining a locus of a tool center of a virtual tool having a radius equal to the arc by the trajectory of the bent portion. Determining along the ridge line, the path of the machining tool between two points where the circular arc is inscribed with the ridge line, the center of the tool center of the virtual tool, the radius of the circular arc and the radius of the machining tool Obtaining a tool path along a contour of a cylinder having a radius of the difference as a radius.
【請求項2】 請求項1記載の方法において、 前記加工工具の移動方向が前記折れ部の折れ曲がり方向
に沿って上下方向に変化する場合に、前記加工工具の経
路を求めることを特徴とする、高速加工用工具経路の作
成方法。
2. The method according to claim 1, wherein a path of the working tool is obtained when a moving direction of the working tool changes in a vertical direction along a bending direction of the bent portion. How to create a tool path for high-speed machining.
JP11057088A 1999-03-04 1999-03-04 Method for preparing tool path for fast working Withdrawn JP2000259218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11057088A JP2000259218A (en) 1999-03-04 1999-03-04 Method for preparing tool path for fast working

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11057088A JP2000259218A (en) 1999-03-04 1999-03-04 Method for preparing tool path for fast working

Publications (1)

Publication Number Publication Date
JP2000259218A true JP2000259218A (en) 2000-09-22

Family

ID=13045755

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11057088A Withdrawn JP2000259218A (en) 1999-03-04 1999-03-04 Method for preparing tool path for fast working

Country Status (1)

Country Link
JP (1) JP2000259218A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007046328A1 (en) 2006-09-29 2008-07-03 Okuma Corporation Method for controlling a machining and method for generating information for machining a machine tool
JP2012071417A (en) * 2010-09-27 2012-04-12 Deckel Maho Pfronten Gmbh Process for producing toothed wheel having herringbone gearing and process and apparatus for generating control data to form herringbone gearing on workpiece
CN104678893A (en) * 2015-01-30 2015-06-03 华中科技大学 Circumferential fixed-width cutting path planning method for rough machining of integrated impeller

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007046328A1 (en) 2006-09-29 2008-07-03 Okuma Corporation Method for controlling a machining and method for generating information for machining a machine tool
US8249742B2 (en) 2006-09-29 2012-08-21 Okuma Corporation Machining control method and machining information generating method for machine tool
JP2012071417A (en) * 2010-09-27 2012-04-12 Deckel Maho Pfronten Gmbh Process for producing toothed wheel having herringbone gearing and process and apparatus for generating control data to form herringbone gearing on workpiece
CN104678893A (en) * 2015-01-30 2015-06-03 华中科技大学 Circumferential fixed-width cutting path planning method for rough machining of integrated impeller
CN104678893B (en) * 2015-01-30 2017-09-12 华中科技大学 The planing method of wide feed path is circumferentially cut in a kind of integral wheel roughing surely

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