JP2017004300A5

JP2017004300A5 -

Info

Publication number: JP2017004300A5
Application number: JP2015118339A
Authority: JP
Filing date: 2015-06-11
Publication date: 2018-04-19
Anticipated expiration: 2035-06-11

Description

これにより、ＮＣプログラムに基づく工具の軸動作を、ワークの形状が考慮された曲線状の軌跡を描く一連の動作とすることができる。よって、ＮＣプログラムにそのまま従った直線移動よりも工具の移動時間を短縮することができる。つまり、従来のＮＣプログラムを組み直さずにそのまま用いて、工具の移動時間を短縮し、生産性を向上させることができる。 This makes it possible to the axis motion of the tool based on NC program, a series of operations to draw the trajectory shape like were considered curve of the workpiece. Therefore, it is possible to shorten the moving time of the tool than the linear movement directly following the NC program. That is, used as it is without Kuminaosa the conventional NC program, to reduce the travel time of the tool, it is possible to improve the productivity.

上記曲線状の移動経路は、上記退避動作の起点を始点とし、上記寄り付き動作の終点を終点としてもよい。 The curved movement path may have a starting point of the retreating operation as a start point and an end point of the approaching operation as an end point.

上記曲線状の移動経路は、上記基準線データを基準として上記工具の移動経路の頂点が設定されてから、上記第１の制御点データ及び上記第４の制御点データに基づき設定されてもよい。The curved movement path may be set based on the first control point data and the fourth control point data after a vertex of the movement path of the tool is set with reference to the reference line data. .

上記目的を達成するため、本発明の一形態に係るプログラムは、工作機械にワークの加工を実行させるプログラムである。
上記プログラムは、ワークの形状に基づき設定された制御点データを含むＮＣプログラムから、
工具の上記ワークからの退避動作を工作機械本体に指令し、上記退避動作の起点となる情報を含む第１の制御点データと、
上記工具の送り動作を上記工作機械本体に指令し、上記退避動作の終点となる情報を含む第２の制御点データと、
上記工具の上記ワークへの寄り付き動作を上記工作機械本体に指令し、上記送り動作の終点となる情報を含む第３の制御点データと、
上記工具の上記寄り付き動作の終点となる情報を含む第４の制御点データと
を抽出する工程と、
上記第２の制御点データと上記第３の制御点データから、上記工具の曲線状の移動経路の基準となる基準線データを生成する工程と、
上記第１の制御点データと、上記第４の制御点データと、上記基準線データから、移動経路データを生成する工程と、
上記移動経路データから上記工具の送り速度データを算出し、上記移動経路データと上記送り速度データに従った上記工具の移動を上記工作機械本体に指令する工程と
を実行させる。 In order to achieve the above object, a program according to an aspect of the present invention is a program that causes a machine tool to perform workpiece machining.
The above program is from an NC program including control point data set based on the shape of a workpiece.
Commanding the machine tool body to retreat the tool from the workpiece, and first control point data including information serving as a starting point of the retraction operation;
Commanding the tool feed operation to the machine tool main body, second control point data including information to be an end point of the retreat operation;
The indu operation onto SL work of the tool is commanded to the machine tool body, a third control point data including information the end point of the feeding operation,
Extracting fourth control point data including information that is an end point of the approaching operation of the tool;
Generating reference line data serving as a reference for the curved movement path of the tool from the second control point data and the third control point data;
Generating movement route data from the first control point data, the fourth control point data, and the reference line data;
The feed rate data of the tool is calculated from the travel route data, and the step of instructing the machine tool body to move the tool according to the travel route data and the feed rate data is executed.

本発明の実施形態に係る工作機械の模式図である。It is a mimetic diagram of a machine tool concerning an embodiment of the present invention. 上記工作機械が備える数値制御装置の模式図である。It is a schematic diagram of the numerical control apparatus with which the said machine tool is provided. 本発明の実施形態に係る制御点データの一例を示す図である。It is a figure which shows an example of the control point data which concern on embodiment of this invention. 従来方式のＮＣ工作機械の工具の移動を示す例である。It is an example which shows the movement of the tool of the conventional NC machine tool. 本発明の実施形態に係る数値制御装置に制御される工具の移動を示す模式である。It is a model which shows the movement of the tool controlled by the numerical control apparatus which concerns on embodiment of this invention. 従来のオーバーラップ機能を用いた工具の移動経路と、本実施形態に係る数値制御装置に制御される工具の移動経路を示す模式図である。It is a schematic diagram which shows the movement path | route of the tool using the conventional overlap function, and the movement path | route of the tool controlled by the numerical control apparatus which concerns on this embodiment. 本発明の実施形態に係る基準線のバリエーションを示す模式図である。The Variation of the reference line according to the embodiment of the present invention is a schematic diagram showing. 上記基準線のバリエーションを示す模式図である。It is a schematic diagram showing a Variation of the reference line. 本発明の実施形態に係る移動経路のバリエーションを示す模式図である。The Variation of the movement path according to an embodiment of the present invention is a schematic diagram showing. 本発明の実施形態に係る数値制御装置に制御される工具の移動を示す模式である。It is a model which shows the movement of the tool controlled by the numerical control apparatus which concerns on embodiment of this invention. 本発明の実施形態に係る工作機械本体の動作を示す模式図である。It is a schematic diagram which shows operation | movement of the machine tool main body which concerns on embodiment of this invention. 従来のＮＣ工作機械における工具のＡＴＣパス動作と、本実施形態に係る数値制御装置に制御される工具のＡＴＣパス動作を示す模式図である。It is a schematic diagram which shows the ATC pass operation of the tool in the conventional NC machine tool, and the ATC pass operation of the tool controlled by the numerical control device according to the present embodiment.

基準線１２２ｂは、必ずしも第２の制御点ＰＲａ２及び第３の制御点ＰＲａ３を経由するものではなく、任意に設定されることができる。図７及び８は、基準線１２２ｂのバリエーションを示す模式図である。基準線１２２ｂは、例えば、図７に示すように、第２の制御点ＰＲａ２又は第３の制御点ＰＲａ３のどちちか一つを経由するものであってもよく、どちらも経由しないものであってもよい。また、基準線１２２ｂは、図８に示すように、直線に限定されるものではなく、曲線、波線等とすることもできる。 The reference line 122b does not necessarily pass through the second control point PRa2 and the third control point PRa3, and can be arbitrarily set. 7 and 8 are schematic views showing a Variation of the reference line 122b. For example, as shown in FIG. 7, the reference line 122b may pass through either one of the second control point PRa2 or the third control point PRa3, and neither of them passes. Also good. Further, the reference line 122b is not limited to a straight line as shown in FIG. 8, and may be a curved line, a wavy line, or the like.

移動経路１２３ｂは、必ずしも第１の制御点ＰＲａ１を始点とし、第４の制御点ＰＲａ４を終点とするものではなく、任意に設定されることができる。図９は、移動経路１２３ｂのバリエーションを示す模式図である。移動経路１２３ｂは、例えば、図９（ａ）、図９（ｂ）及び図９（ｃ）に示すように、第１の制御点ＰＲａ１又は第４の制御点ＰＲａ４のどちらか一つを経由するものであってもよく、どちらも経由しないものであってもよい。また、移動経路１２３ｂは、図９（ｄ）に示すように、部分的に直線を含むものとすることもできる。 The movement path 123b does not necessarily have the first control point PRa1 as the start point and the fourth control point PRa4 as the end point, and can be arbitrarily set. Figure 9 is a schematic diagram showing a Variation of the moving path 123b. The movement path 123b passes through one of the first control point PRa1 and the fourth control point PRa4 as shown in FIGS. 9A, 9B, and 9C, for example. It may be a thing, and neither may pass. Further, the movement path 123b may partially include a straight line as shown in FIG. 9 (d).

Claims

A numerical control device for a machine tool for controlling the operation of a machine tool body having a tool,
From NC program including control point data set based on workpiece shape,
Commanding the machine tool main body to retract the tool from the workpiece, and first control point data including information serving as a starting point of the retracting operation;
Commanding the tool feed operation to the machine tool body, second control point data including information serving as an end point of the retreat operation;
Commanding the machine tool main body to move the tool toward the workpiece, and third control point data including information serving as an end point of the feed operation;
A control point data extraction unit that extracts fourth control point data including information that is an end point of the approaching operation of the tool;
A reference line data generation unit that generates reference line data serving as a reference for the curved movement path of the tool from the second control point data and the third control point data;
A travel route data generating unit that generates travel route data from the first control point data, the fourth control point data, and the reference line data;
A machine tool comprising: a feed operation command unit that calculates feed speed data of the tool from the travel path data, and commands the machine tool body to move the tool according to the travel path data and the feed speed data. Numerical control unit.

A numerical control device for a machine tool according to claim 1,
The numerical control device for a machine tool, wherein the curved movement path has a starting point of the retreating operation as a starting point and an end point of the approaching operation as an ending point.

A numerical control device for a machine tool according to claim 2,
The curved movement path is set based on the first control point data and the fourth control point data after the apex of the movement path of the tool is set with reference to the reference line data. Numerical control unit.

A numerical control device for a machine tool according to claim 3,
The feed operation command unit calculates a feed speed of the tool based on distance information included in the movement path data.

A machine tool body having a tool;
A numerical control device for a machine tool for controlling the operation of the machine tool main body, wherein the retraction operation of the tool from the work is performed from an NC program including control point data set based on the shape of the work. The second control includes the first control point data including information serving as a starting point of the retracting operation and the information indicating the end point of the retracting operation by instructing the machine tool body to perform the feed operation of the tool. The point data, the control tool commanding the tool to approach the workpiece, the third control point data including the information to be the end point of the feed operation, and the end point of the tool approaching operation A control point data extracting unit for extracting fourth control point data including information, and a reference serving as a reference for the curved movement path of the tool from the second control point data and the third control point data. A reference line data generation unit that generates data, the first control point data, the fourth control point data, a movement route data generation unit that generates movement route data from the reference line data, and the movement A numerical control device for a machine tool, comprising: a feed operation command unit that calculates feed speed data of the tool from path data and commands the machine tool body to move the tool according to the travel path data and the feed speed data A machine tool comprising

A machine tool control method for controlling the operation of a machine tool body having a tool,
From NC program including control point data set based on workpiece shape,
Commanding the machine tool main body to retract the tool from the workpiece, and first control point data including information serving as a starting point of the retracting operation;
Commanding the tool feed operation to the machine tool body, second control point data including information serving as an end point of the retreat operation;
Commanding the machine tool main body to move the tool toward the workpiece, and third control point data including information serving as an end point of the feed operation;
Extracting fourth control point data including information that is an end point of the approaching operation of the tool;
Generating reference line data serving as a reference for the curved movement path of the tool from the second control point data and the third control point data;
Generating movement route data from the first control point data, the fourth control point data, and the reference line data;
A method for controlling a machine tool, comprising: calculating feed speed data of the tool from the movement path data, and instructing the machine tool body to move the tool according to the movement path data and the feed speed data.

A program for causing a machine tool to process a workpiece,
From NC program including control point data set based on workpiece shape,
Commanding the machine tool body to retreat the tool from the workpiece, and first control point data including information serving as a starting point of the retraction operation;
Commanding the tool feed operation to the machine tool body, second control point data including information serving as an end point of the retreat operation;
Commanding the machine tool main body to move the tool toward the workpiece, and third control point data including information serving as an end point of the feed operation;
Extracting fourth control point data including information that is an end point of the approaching operation of the tool;
Generating reference line data serving as a reference for the curved movement path of the tool from the second control point data and the third control point data;
Generating movement route data from the first control point data, the fourth control point data, and the reference line data;
A program for calculating feed speed data of the tool from the movement path data and instructing the machine tool body to move the tool according to the movement path data and the feed speed data.