WO1985004354A1 - Processing region-checking system - Google Patents
Processing region-checking system Download PDFInfo
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- WO1985004354A1 WO1985004354A1 PCT/JP1985/000140 JP8500140W WO8504354A1 WO 1985004354 A1 WO1985004354 A1 WO 1985004354A1 JP 8500140 W JP8500140 W JP 8500140W WO 8504354 A1 WO8504354 A1 WO 8504354A1
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- entry
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- 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
- G05B19/406—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 monitoring or safety
- G05B19/4061—Avoiding collision or forbidden zones
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- 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
- G05B2219/49—Nc machine tool, till multiple
- G05B2219/49157—Limitation, collision, interference, forbidden zones, avoid obstacles
Definitions
- the present invention relates to a machining area check method in a numerical control system in which a machine tool is controlled by a numerical control device, and more specifically, to a change in machining conditions. Also, the present invention relates to a check method of a machining area in which each of the entry-prohibited areas of a movable part of a machine tool can be set.
- NC numerical control
- FIG. 1 is a chuck
- 2 is a tail stock
- 3 is a work.
- this area is shown as diagonal lines in Fig. 1 as the area where no moving parts can enter the NC machine tool.
- the first entry-prohibited area is an area where the movable part of the machine cannot move. This area depends on the size of the machine, and is an absolutely fixed and generally invariable area irrespective of the shape of the tool. (Hereafter referred to as prohibited area L.)
- the second entry-prohibited area is an area that cannot be entered due to machining conditions. This area can be changed. For example, in the case of an NC lathe, a chuck section and a tail stock section for fixing a workpiece (work) correspond to this area. . (Hereafter referred to as forbidden Ih area ⁇ .)
- the NC unit creates and stores in the memory the entry prohibition information corresponding to the boundaries of these prohibited areas, and monitors the current position of the movable parts of the machine, Whether or not the current position of the part is within the prohibited area is determined by using the entry prohibition information, and when the current position enters the prohibited area, the movement of the movable part is stopped.
- the prohibited area S is an area that can be changed depending on the processing conditions, conventionally, through the work scheduled by the machine tool, In any of the work steps, the prohibited area S was set to be as wide as possible so that the moving parts of the machine would not enter the prohibited area S. In other words, at least the forbidden area S was treated as a fixed forbidden area during a scheduled series of operations. For that reason, Tairai may be variable However, it is actually treated as a fixed prohibited area, and there is a problem that the processing space is limited and the space cannot be used effectively.
- the present invention has been made to solve the above-mentioned problems, and it has been made possible to variably set an entry-prohibited area of a movable part in a machine tool in accordance with a processing condition. Therefore, the purpose of the present invention is to provide a check method of a machining area in which the additional space can be expanded and the space can be effectively used.
- the numerical control system controls the machine tool by using a numerical control system.
- a check method of a machining area is provided, which has a memory for recording an entry-prohibited area of a part, and variably sets the entry-prohibited lh area in accordance with machining conditions.
- the area where the movable section is not allowed to enter on the machine tool may be changed even when the processing conditions are changed even during a series of processing operations. It is set variably in response to changes in conditions. Therefore, according to the present invention, it is possible to set a fine entry-prohibited area that is suitable for the processing conditions, to enlarge the additional space, and to effectively use the space. The effect of this is that the effect can be obtained.
- Fig. 1 is an explanatory diagram showing the prohibited area of the movable part in the machine tool.
- Fig. 2 is a block diagram showing the outline of the numerical control system for implementing the invention.
- Fig. 4 is an explanatory view of the correction amount at the time of replacement,
- Fig. 4 is an explanatory view showing the relationship between the tool change and the processing area according to the invention, and
- Fig. 5 is an example of the processing area check method according to the invention. This is the flowchart shown below.
- FIG. 2 is a block diagram showing an outline of a numerical control system for implementing the invention.
- reference numeral 10 denotes an NC unit, which is a tape reader 21 for reading information of a machining command tape, and a control unit 22 for performing a predetermined processing based on the machining command information.
- a servo unit 23 for controlling the speed and position of the servo motor 21 of the machine tool 20 based on a finger from the control unit 22; It is composed of an interface circuit 24 and the like.
- the control unit 22 is composed of a micro ⁇ computer and executes a predetermined processing based on each command of the basic control program and the processing finger program. (ROM), which stores the basic control program, and the CPU processing results and machine tools.
- Random access memory (RAM) that stores the status of 0 and the processing finger, etc., and memory that stores the entry-prohibited area of the movable part of the machine 20 have .
- entry-prohibition information that fits into the boundary of the entry-prohibition area of the movable part of the machine tool 20 is created and stored in the memory of the control section 22.
- the control section 22 monitors the current position of the movable section of the machine tool 20 and determines whether or not the current position of the movable section is within the intrusion prohibition area using the entry prohibition information. When the current position of the movable part enters the no-go area, the movement of the movable part is stopped.
- a monitoring method for such a processing area has been proposed (for example, see Japanese Patent Application Laid-Open No. 57-73202).
- the movable range of the movable part of the machine tool is divided into a number of small areas, and the small areas are classified into the no-go area based on the coordinate values that can specify the boundary of the approach area. Is calculated, and the entry prohibition information obtained by the calculation is stored in a memory position corresponding to each small area.
- Fig. 3 is an explanatory view of position correction when the tool is changed.
- the tool TO1 and the tool TO2 have different lengths.
- the center position A of the holder 10 of the tools TO 1 and T 0 2 is used as the reference point and the check position of the movable part of the machine is used.
- -In the case of machining with tool T 02 It is not possible to drop below point A in the X ⁇ direction.
- the tool position is corrected because the tool TO1 is shorter than the tool T02 by il. That is, the center point A of the holder 10 can be lowered by ⁇ in the X-axis direction.
- the entry-prohibited area of the movable part of the machine tool can be reduced in one X ⁇ direction by the correction amount of the tool length.
- the chip point of the movable part of the machine tool is the movable area of the tool TO2 up to the point A in the X ⁇ direction. At T 0 1, it spreads in one X ⁇ direction and becomes a movable range up to point A ′.
- the area a is the no-go area in the conventional method of setting the no-go area, but the tool length correction amount is In consideration of this, when the area where the movable part of the machine tool cannot enter is adjusted, the area where the prohibited area is reduced to the area a ′ is reduced when machining is performed using the tool TO1. You can do it.
- b is a buffer area provided between the tool tip and the prohibited area provided for safety.
- FIG. 5 is a flowchart for explaining an example of a check method of a processing area according to the invention. Based on this figure, an example of a method for checking a machining area will be described with reference to FIG. (1)
- a fixed prohibited area L in which the movable part of the machine tool cannot absolutely enter is set and stored in the memory built in the control unit 22 of the NC unit 10.
- the control unit 22 adjusts the prohibited area S in response to the change in the processing conditions.
- a change in the processing conditions for example, a change of a tool
- the control unit 22 programs the combination of the tool number and the correction amount of the tool, and performs the arithmetic processing ar for adjusting the prohibited area when the tool replacement information is input. Perform.
- Honkiaki has set the entry-prohibited area of the movable part of the machine tool variably in accordance with the machining conditions, so the NC machine tool that performs a series of machining operations using multiple tools This is unusual.
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Abstract
Description
明 細 書 Specification
加工領域のチ ク-方式 Machining area chuck method
技 術 分 野 Technical field
本発明は 、 数値制御装置に よ っ て工作機械を 制御す る 数値制御 シ ス テ ム に お け る加工領域チ : ッ ク 方式、 更 に 詳 し く は、 加工条件 の変化に対 ίδ して、 工作機械の可動 部の進入禁止領域 を各 々設定可能に した加工領域の チ ェ ッ ク 方式に関する 。 The present invention relates to a machining area check method in a numerical control system in which a machine tool is controlled by a numerical control device, and more specifically, to a change in machining conditions. Also, the present invention relates to a check method of a machining area in which each of the entry-prohibited areas of a movable part of a machine tool can be set.
背 景 技 術 Background technology
従来、 数値制御 （ N C ) 装置に よ っ て制御す る 工作機 械で は 、 工作機械の可動部が可動領域を超え て し ま っ た と き に機械が破損す る の を防止する ため に 、 機械に リ ミ ッ ト ス イ ッ チ を取 り 付け、 そ の リ ミ ツ ト ス イ ッ チが働 く と N C 装置 に信号を 送 り 、 N C 装置は こ の信号 を受け て 可動部 の铀移動を止め ていた。 と こ ろ で最近の N C 装置 は内蔵す る 不揮癸性 メ モ リ に可動部の進入禁止領域で あ る リ ミ ッ ト の位置を 記憶 させてお き （ こ の リ ミ ソ ト の こ と を以後 ス ト ア ー ド ス ト ロ ー ク リ ミ ッ ト と い う ） 、 軸移 動 に伴 っ て刻 々 と 更新 される機械座標値が ス ト ァ 一 ド ス ト ロ ー ク リ ミ ッ ト の座標値を越えた と き 轴移動 を止め る と い う い わゆ る ス ィ ツ チ レ ス方式が一般的に な っ て い る 。 こ こ で、 可動部の進入禁止領域につい て第 1 図に ょ リ 説明 す る 。 図中 、 1 は チ ャ ッ ク 、 2 ほテ ー ル ス ト ッ ク 、 3 は ワ ー ク で あ る 。 一般に、 N C工作機械に おけ る 可動 部の進入禁止領域 と し てほ、 第 1 図において斜線で示す よ う に 2 つに大別で き る。 即ち 、 Conventionally, in a machine tool controlled by a numerical control (NC) device, in order to prevent the machine from being damaged when the movable part of the machine tool exceeds the movable range. Attach a limit switch to the machine, send a signal to the NC unit when the limit switch operates, and the NC unit receives this signal, and the NC unit receives the signal.铀 The movement was stopped. At this time, recent NC units store the position of the limit, which is a restricted area of the moving part, in the built-in non-volatile memory (this limit Are referred to as “stored stroke limits” hereinafter), and machine coordinate values that are updated momentarily with axis movement are called stored stroke limits. The so-called switchless method of stopping the movement when the coordinates of the mitts are exceeded has become common. Here, the entry-prohibited area of the movable part will be described with reference to FIG. In the figure, 1 is a chuck, 2 is a tail stock, and 3 is a work. Generally, this area is shown as diagonal lines in Fig. 1 as the area where no moving parts can enter the NC machine tool. There are two main types. That is,
( 1 ) 第 1 の進入禁止領域は、 機械の可動部 自体が動 く こ と の でき ない領域である 。 この領域は機械の サ イ ズ に よ っ て块ま る も の であ り 、 工具の形状等に ほ関係の な い絶対的に 固定 され、 一般的に不変な領域であ る 。 （以 後、 禁止領域 L と い う 。 ） (1) The first entry-prohibited area is an area where the movable part of the machine cannot move. This area depends on the size of the machine, and is an absolutely fixed and generally invariable area irrespective of the shape of the tool. (Hereafter referred to as prohibited area L.)
( 2 ) 第 2 の進入禁止領域は、 加工条件に よ っ て進入 する こ と がで き ない領域であ る。 こ の領域は変更可能で あ り 、 N C 旋盤を例 に と っ てみる と 、 加工物 （ ワ ー ク ） を固定 させ る チ ャ ッ ク 部、 テールス ト ッ ク部等がこれ に 相当す る 。 （以後、 禁 Ih領域^ と い う。 ） (2) The second entry-prohibited area is an area that cannot be entered due to machining conditions. This area can be changed. For example, in the case of an NC lathe, a chuck section and a tail stock section for fixing a workpiece (work) correspond to this area. . (Hereafter referred to as forbidden Ih area ^.)
そ し て、 N C 装置 は これらの禁止領域の境界線に閬す る進入禁止情報を作成 して メ モ リ に記憶 し てお く と共 に 、 機械の可動部の現在位置を監視 し、 可動部の現在位置 が禁止領域内に あ る か否かを進入禁止情報を用 いて判別 し 、 現在位置が禁 It領域内に進入 した と き 可動部の移動 を停止 させる よ う に し ている。 The NC unit creates and stores in the memory the entry prohibition information corresponding to the boundaries of these prohibited areas, and monitors the current position of the movable parts of the machine, Whether or not the current position of the part is within the prohibited area is determined by using the entry prohibition information, and when the current position enters the prohibited area, the movement of the movable part is stopped.
と こ ろ が、 上記 し た様に禁止領域 S は加工条件に よ つ て変更可能な領域であ る に もかかわ らず、 従来は、 工作 機械に よ る予定 された作業を通 して、 いずれの作業 ス テ ッ プに おいて も禁止領域 S に機械の可動部が進入 し な い よ う に禁止領域 S を 最大限に広 く と る よ う に設定 し てい た。 換言すれば、 少 な く と も 、 禁止領域 S は あ る予定 さ れた一連の作業中は 、 固定された禁止領域 と し て取扱 わ れてい た。 そ のため に、 太来は可変に な し得る 禁止領域 が実際 に は固定 された禁止領域 と し て取扱われ てお り 、 加工空間が制限 され る と共に その空間を有効 に使用 し 得 ない と い う 問題があ っ た。 However, as described above, although the prohibited area S is an area that can be changed depending on the processing conditions, conventionally, through the work scheduled by the machine tool, In any of the work steps, the prohibited area S was set to be as wide as possible so that the moving parts of the machine would not enter the prohibited area S. In other words, at least the forbidden area S was treated as a fixed forbidden area during a scheduled series of operations. For that reason, Tairai may be variable However, it is actually treated as a fixed prohibited area, and there is a problem that the processing space is limited and the space cannot be used effectively.
発 明 の 開 示 Disclosure of the invention
. 末発明 は 前記問題点を解決する ため に な された も の で、 工作機械 に おけ る 可動部の進入禁止領域を 、 加工条 件 に対応 し て各 々可変に設定可能と する こ と に よ り 、 加 ェ空間 の拡大及び そ の空間の有効利用 を 図 る こ と がで き る 加工領域の チ ェ ッ ク 方式を提供する こ と を 目 的 と す る も の で あ る 。 The present invention has been made to solve the above-mentioned problems, and it has been made possible to variably set an entry-prohibited area of a movable part in a machine tool in accordance with a processing condition. Therefore, the purpose of the present invention is to provide a check method of a machining area in which the additional space can be expanded and the space can be effectively used.
- 未発明 に よれば、 数値制御装置に よ っ て工作機械を 制 御す る 数値制街 シ ス テ ム の加工領域のチ ェ ッ ク 方式で あ つ て 、 数値制御装置は工作機械の可動部の進入禁止領域 を記億す る メ モ リ を 備え、 前記進入禁 lh領域 を 加工条件 に対応 し て可変に設定する加工領域のチ ェ ッ ク 方式が提 供 され る 。 -According to the uninvented method, the numerical control system controls the machine tool by using a numerical control system. A check method of a machining area is provided, which has a memory for recording an entry-prohibited area of a part, and variably sets the entry-prohibited lh area in accordance with machining conditions.
太発明が提供 され る こ と に よ リ 、 工作機械に おけ る 可 動部の進入禁止領域は、 一連の加工作業 中 に お い て も 加 ェ条件が変化す る 場合 には、 こ の加工条件の変化に対応 させて 可変 に 設定 さ れ る 。 従 っ て、 术発明 に よれば加工 条件に 適合 し た き め細かい進入禁止領域が設定で き 、 加 ェ空間 を拡大す る こ と ができ る と共に、 当該空間の有効 利用 を 図 る こ と がで き る と い う作用効果が得 られ る 。 Due to the provision of the large invention, the area where the movable section is not allowed to enter on the machine tool may be changed even when the processing conditions are changed even during a series of processing operations. It is set variably in response to changes in conditions. Therefore, according to the present invention, it is possible to set a fine entry-prohibited area that is suitable for the processing conditions, to enlarge the additional space, and to effectively use the space. The effect of this is that the effect can be obtained.
本発明 の他 の 目 的及び特徵は、 以下に述べ る 説明 に よ リ 明 ら か に さ れ る 。 図面の簡単な説明 Other objects and features of the present invention will be made clear by the following description. BRIEF DESCRIPTION OF THE FIGURES
第 1 図は工作機械 に おける可動部の進入禁止領域を示 す説明 図、 第 2 図は太発明を実施する数値制御 シ ス テ ム の概略 を示す プ ロ ッ ク 図、 第 3 図は、 ェ具—交換時の補正 量の説明図、 第 4 図 は未発明に係る工具交換 と 加工領域 の関連 を示す説明図 、 第 5 図は： 発明に係る 加工領域 チ ヱ ッ ク 方式の一例を示すフロ 一チ ヤ一 ト であ る 。 Fig. 1 is an explanatory diagram showing the prohibited area of the movable part in the machine tool. Fig. 2 is a block diagram showing the outline of the numerical control system for implementing the invention. Fig. 4 is an explanatory view of the correction amount at the time of replacement, Fig. 4 is an explanatory view showing the relationship between the tool change and the processing area according to the invention, and Fig. 5 is an example of the processing area check method according to the invention. This is the flowchart shown below.
発明 を実施するための最良の形態 BEST MODE FOR CARRYING OUT THE INVENTION
以下、 太発明の一実施例を図面に基づいて具体的に説 明する 。 An embodiment of the invention is specifically described below with reference to the drawings.
第 2 図は、 太発明 を実施する数値制御 シ ス テ ム の概要 を示す ブ ロ ッ ク 図で あ る 。 同図において 、 1 0 は N C 装 置で、 加工指令テー プの情報を読み込むテ 一 プ リ 一 ダ 2 1 と 、 該加工指令情報に基づいて所定の演箕処理を行 う 制御部 2 2 と 、 該制御部 2 2 か らの指会に基づ き 工作機 械 2 0 のサ一 ボモー タ 2 1 の速度 · 位置を制御する サ一 ボュニ ッ ト 2 3 と 、 こ れ らを接続する ィ ン タ 一 フ ェ ー ス 回路 2 4 等か ら構成 されてい る。 前記制御部 2 2 はマ イ ク π コ ン ピ ュ ー タ に よ っ て構成され、 基本制御 プ ロ グ ラ ムゃ加工指今 プ ロ グ ラ ムの各命令に基づいて所定の演箕 処理を行 う プ ロ セ ッ サ （ C P U ) と 、 基本制御 プ ロ グ ラ ム を記億 した リ ー ド ' · オ ン リ ー ' メ モ リ （ R O M ) と 、 C P U の処理結果や工作機械 2 0 の状態や加工指今等 を 記億す る ラ ン ダ ム · ア ク セ ス · メ モ リ （ R A M ) と 、 ェ 作機械 2 0 の可動部の進入禁止領域を記憶する メ モ リ 等 を有 し てい る 。 FIG. 2 is a block diagram showing an outline of a numerical control system for implementing the invention. In the figure, reference numeral 10 denotes an NC unit, which is a tape reader 21 for reading information of a machining command tape, and a control unit 22 for performing a predetermined processing based on the machining command information. A servo unit 23 for controlling the speed and position of the servo motor 21 of the machine tool 20 based on a finger from the control unit 22; It is composed of an interface circuit 24 and the like. The control unit 22 is composed of a micro π computer and executes a predetermined processing based on each command of the basic control program and the processing finger program. (ROM), which stores the basic control program, and the CPU processing results and machine tools. Random access memory (RAM) that stores the status of 0 and the processing finger, etc., and memory that stores the entry-prohibited area of the movable part of the machine 20 have .
以上 の よ う な数値制御シ ス テ ム におい て、 工作機械 2 0 の可動部の進入禁止領域の境界線に閭する 進入禁止情 報を作成 し て 、 前記制御部 2 2 の メ モ リ に記憶 し 、 一方 、 制御部 2 2 は工作機械 2 0 の可動部の現在位置を監視 し 、 該可動部の現在位置が侵入禁止領域内に あ る か否か を進入禁止情報を用 いて判別 し、 該可動部の現在位置が 進入禁止領域内に進入 し た と き該可動部の移動 を停止 さ せる ょ ラ に な っ てい る 。 こ の様な加工領域の監視方式ほ す で に 提案 されてい る （例えば、 特開昭 5 7 — 7 3 4 0 2 号公報参照） 。 In such a numerical control system as described above, entry-prohibition information that fits into the boundary of the entry-prohibition area of the movable part of the machine tool 20 is created and stored in the memory of the control section 22. On the other hand, the control section 22 monitors the current position of the movable section of the machine tool 20 and determines whether or not the current position of the movable section is within the intrusion prohibition area using the entry prohibition information. When the current position of the movable part enters the no-go area, the movement of the movable part is stopped. A monitoring method for such a processing area has been proposed (for example, see Japanese Patent Application Laid-Open No. 57-73202).
こ の方式に よれば、 更に、 工作機械の可動部の可動範 囲 を 多数の小領域に分割 し、 進入領域の境界線 を特定 で き る 座標値に基づい て、 該小領域が進入禁止領域で あ る か否か を演算 し 、 該演算に ょ リ 得 られた進入禁止情報 を 各小領域に対応す る メ モ リ 位置に記憶す る よ う に し て い る 。 According to this method, furthermore, the movable range of the movable part of the machine tool is divided into a number of small areas, and the small areas are classified into the no-go area based on the coordinate values that can specify the boundary of the approach area. Is calculated, and the entry prohibition information obtained by the calculation is stored in a memory position corresponding to each small area.
末発明 に おいて も 、 禁止領域の監視は 、 こ の様 な ス ト ァ ー ド ス ト 口 一 ク リ ミ ツ ト 方式を用い る こ と を 前提に し てい る 。 Also in the second invention, it is assumed that the monitoring of the prohibited area uses such a store-to-store limit method.
次 に 、 複数の工具 を用いて ワ ー ク の加工を行 う 場合 に おけ る 可動部 であ る 工具の進入禁止領域の変更 につい て 第 3 図 お よ び第 4 図 に基づき説明する 。 Next, a description will be given, with reference to FIGS. 3 and 4, of a change in the entry-prohibited area of a tool which is a movable part when a workpiece is machined using a plurality of tools.
第 3 図は工具が交換 される場合の位置補正の説明図 で あ り 、 工具 T O 1 と 工具 T O 2 は長さが相違す る も の と する 。 こ の場合に、 説明 を箇単にするた め に、 工具 T O 1 と T 0 2 と の保持体 1 0 の中心点 A を基準点 と し てェ 作機械の可動部のチェ ッ ク位置 とす-る と 、 工具 T 0 2 を 用いて加工を 行 う場合には： X轴方向においてほ点 A よ 下げる こ と はで き な い。 一方工具 T 0 1 を用い る場合 に は、 工具 T O 1 は工具 T 0 2 に対して il だけ短いの でェ 具位置の補正 を行 ラ 。 即ち、 保持体 1 0 の中心点 A ほ X 軸方向 に おい て下方に ϋ だけ下げる こ と がで き る 。 つ ま 、 工具 T O 1 におい ては、 工作機械の可動部の進入禁 止領域を一 X铀方向 に工具長の補正量だけ減少 させる こ と がで き る 。 こ の こ と を、 第 4 図を参照 し て詳細に説明 する と 、 工作機械の可動部のチ - ッ ク 点は、 工具 T O 2 におい ては X铀方向 においては点 A までが可動領域であ つ た も のが、 T 0 1 に おいては、 一 X铀方向 に広が り 、 点 A ' ま で可動镇域 と な る。 換言すれば、 工具 T O 1 に おい て は従来の進入禁止領域の設定の方法では領域 a が そ の進入禁止領珐で あ っ たも のが、 本癸明の よ う に工具 長補正量を考慮 し て 、 その工作機械の可動部の進入禁止 領域を調整す る よ う にする と 、 工具 T O 1 を用 いて加工 を行 う 場合に ほ、 そ の禁止領域は領域 a ' ま で縮小 させ る こ と がで き る 。 な お、 図において、 b は安全のため に 設け ら れた工具先端 と 禁止領域間の緩衝領域で あ る 。 Fig. 3 is an explanatory view of position correction when the tool is changed.The tool TO1 and the tool TO2 have different lengths. Do In this case, for the sake of simplicity of explanation, the center position A of the holder 10 of the tools TO 1 and T 0 2 is used as the reference point and the check position of the movable part of the machine is used. -In the case of machining with tool T 02: It is not possible to drop below point A in the X 轴 direction. On the other hand, when the tool T01 is used, the tool position is corrected because the tool TO1 is shorter than the tool T02 by il. That is, the center point A of the holder 10 can be lowered by ϋ in the X-axis direction. In other words, in the tool TO1, the entry-prohibited area of the movable part of the machine tool can be reduced in one X 一 direction by the correction amount of the tool length. This will be described in detail with reference to FIG. 4.The chip point of the movable part of the machine tool is the movable area of the tool TO2 up to the point A in the X 铀 direction. At T 0 1, it spreads in one X 铀 direction and becomes a movable range up to point A ′. In other words, in the conventional method of setting the no-go area in the tool TO1, the area a is the no-go area in the conventional method of setting the no-go area, but the tool length correction amount is In consideration of this, when the area where the movable part of the machine tool cannot enter is adjusted, the area where the prohibited area is reduced to the area a ′ is reduced when machining is performed using the tool TO1. You can do it. In the drawing, b is a buffer area provided between the tool tip and the prohibited area provided for safety.
第 5 図は、 *発明 に係る加工領域のチ ェ ッ ク 方式の一 例 を説明する ための フ ロ ーチ ャ ー ト であ る 。 こ の図に S づい て 、 加工領域の チ ッ ク方式の一例 を説明する 。 ( 1 ) 工作機械の可動部が絶対的に進入で き ない固定 された禁止領域 L を設定 し、 N C装置 1 0 の制御部 2 2 に内蔵 された メ モ リ に記億させる。 FIG. 5 is a flowchart for explaining an example of a check method of a processing area according to the invention. Based on this figure, an example of a method for checking a machining area will be described with reference to FIG. (1) A fixed prohibited area L in which the movable part of the machine tool cannot absolutely enter is set and stored in the memory built in the control unit 22 of the NC unit 10.
( 2 ) 加工態様を 検討 して禁止領域 S の最大領域、 例 えば、 工具長 の最 も 長い工具に よる加工 に おけ る禁止領 域 を設定 し 、 前記制御部 2 2 に内蔵 した メ モ リ に記億 さ せる 。 (2) Considering the machining mode, set the maximum area of the prohibited area S, for example, the prohibited area in the processing by the tool with the longest tool length, and set the memory built in the control unit 22. To be recorded.
( 3 ) 次に 、 加工条件の変化、 例えば ， 工具 の交換 を 行え ば、 制御部 2 2 は そ の加工条件の変化に対応 し て 、 前記禁止領域 S を調整する。 なお、 こ の実施例 に おい て は、 加工条件 の変化の例 と し ては、 工具の交換 の み を 示 し て い る が、 加工条件 に変化を もた らす も の で あれば何 で あ っ て も よ い。 例 えば、 工具の先端部 を'基準点 と し て 、 工具の設定状態 （工具の摩耗、 保持体への取付状態等 ) に対応 し て 、 そ の禁止領域の調整を行 う よ う に する こ と も で き る 。 ま た、 禁止領域の調整は制御部 2 2 かつ プ ロ グ ラ ム を用 い て行 う 。 つま り 、 制御部 2 2 は工具番号 と そ の 工具の補正量 を組合せて プロ グ ラ ム し て お き 、 ェ 具の交換情報 を入力 し た と き禁止領域調整のた め の演算 処 arを実行す る 。 (3) Next, if a change in the processing conditions, for example, a change of a tool is performed, the control unit 22 adjusts the prohibited area S in response to the change in the processing conditions. In this embodiment, as an example of the change in the processing conditions, only the tool change is shown. However, if any change in the processing conditions is caused. But it is OK. For example, using the tip of the tool as the reference point, adjust the prohibited area according to the setting state of the tool (wear of the tool, mounting state on the holder, etc.). You can do that too. Adjustment of the prohibited area is performed using the control unit 22 and the program. In other words, the control unit 22 programs the combination of the tool number and the correction amount of the tool, and performs the arithmetic processing ar for adjusting the prohibited area when the tool replacement information is input. Perform.
以上、 未発明 を 図示の実施例に基づい て説明 したが、 本発明 は、 前述 し た実施例に限定される も の では な く 、 *発明 の主 旨 の範囲内で種々 の変形が可能であ り 、 こ れ ら を本発明の範囲か ら排除する ものでは ない。 As described above, the non-invention has been described based on the illustrated embodiment. However, the present invention is not limited to the above-described embodiment, and various modifications are possible within the spirit of the invention. Yes, they do not exclude them from the scope of the present invention.
産業上の利用可能性 以上の よ う に、 本癸明は工作機械の可動部の進入禁止 領域を 、 加工条件に対応 して可変に設定 したの で、 複数 の工具を用い て一連の加工作業を行 う N C 工作機械に好 違であ る 。 Industrial applicability As described above, Honkiaki has set the entry-prohibited area of the movable part of the machine tool variably in accordance with the machining conditions, so the NC machine tool that performs a series of machining operations using multiple tools This is unusual.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59/055113 | 1984-03-22 | ||
| JP5511384A JPS60201855A (en) | 1984-03-22 | 1984-03-22 | Check system of machining area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1985004354A1 true WO1985004354A1 (en) | 1985-10-10 |
Family
ID=12989693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1985/000140 Ceased WO1985004354A1 (en) | 1984-03-22 | 1985-03-22 | Processing region-checking system |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60201855A (en) |
| WO (1) | WO1985004354A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63288641A (en) * | 1987-05-18 | 1988-11-25 | Mitsubishi Heavy Ind Ltd | Machining error prevention system for machine tool |
| JPH0780113B2 (en) * | 1987-06-01 | 1995-08-30 | 日立精機株式会社 | Numerically controlled machine tool cutting edge coordinate position setting device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5624608A (en) * | 1979-08-07 | 1981-03-09 | Fanuc Ltd | Numerical value control system |
| JPS58126034A (en) * | 1982-01-20 | 1983-07-27 | Yamazaki Mazak Corp | Control method for prevention of collision, in numerical control lathe |
-
1984
- 1984-03-22 JP JP5511384A patent/JPS60201855A/en active Pending
-
1985
- 1985-03-22 WO PCT/JP1985/000140 patent/WO1985004354A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5624608A (en) * | 1979-08-07 | 1981-03-09 | Fanuc Ltd | Numerical value control system |
| JPS58126034A (en) * | 1982-01-20 | 1983-07-27 | Yamazaki Mazak Corp | Control method for prevention of collision, in numerical control lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60201855A (en) | 1985-10-12 |
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