WO2015097893A1 - 工作機械の制御装置 - Google Patents
工作機械の制御装置 Download PDFInfo
- Publication number
- WO2015097893A1 WO2015097893A1 PCT/JP2013/085218 JP2013085218W WO2015097893A1 WO 2015097893 A1 WO2015097893 A1 WO 2015097893A1 JP 2013085218 W JP2013085218 W JP 2013085218W WO 2015097893 A1 WO2015097893 A1 WO 2015097893A1
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- WIPO (PCT)
- Prior art keywords
- measurement
- item list
- inspection item
- control device
- machining program
- Prior art date
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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
- G05B19/4065—Monitoring tool breakage, life or condition
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
- G01B11/005—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates coordinate measuring machines
-
- 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
- G05B19/401—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 control arrangements for measuring, e.g. calibration and initialisation, measuring workpiece for machining purposes
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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
- G05B2219/31—From computer integrated manufacturing till monitoring
- G05B2219/31304—Identification of workpiece and data for control, inspection, safety, calibration
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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
- G05B2219/37—Measurements
- G05B2219/37198—Machine as measuring station, use tool or probe, in process incycle
-
- 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
- G05B2219/37228—Tool inspection, condition, dull tool
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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
- G05B2219/37—Measurements
- G05B2219/37441—Use nc machining program, cad data for measuring, inspection
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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
- G05B2219/37—Measurements
- G05B2219/37452—Generate nc program from metrology program, defining cmm probe path
-
- 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
- G05B2219/37574—In-process, in cycle, machine part, measure part, machine same part
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
Definitions
- the present invention relates to a control device for a machine tool in which a machined workpiece is inspected on a machine.
- machining accuracy may change due to tool wear or thermal deformation of the machine tool due to changes in ambient temperature while machining a large number of workpieces. Therefore, when all or one machining process is completed for one workpiece, a predetermined part of the workpiece is measured to determine whether or not machining is performed within a predetermined machining accuracy. There is a control unit.
- Patent Document 1 discloses an NC apparatus that measures a processed workpiece according to a measurement program, stores measurement data in the NC apparatus, and displays a measurement result based on the measurement data. Yes.
- the measurement result can be stored or displayed graphically.
- the portion to be measured of the processed workpiece, the measurement method, etc. Information is not clearly provided to the operator. Therefore, in the NC apparatus of Patent Document 1, there is a problem that it is difficult for an operator to determine whether a correct part is measured by a correct measurement method.
- the present invention has a technical problem to solve such problems of the prior art, and an object of the present invention is to provide a machine tool control device that can surely inspect a machined workpiece on a machine.
- a control device that controls a machine tool based on a machining program
- a storage unit that stores a workpiece inspection item list corresponding to the machining program
- the machining program A control device for a machine tool is provided that includes a display unit that displays the inspection items stored in association with the machining program.
- the present invention when an operator tries to inspect a processed workpiece, it becomes possible to know what inspection should be performed, such as an inspection method and an inspection part, and the inspection can be easily performed without omission. .
- a control device 10 of a machine tool 20 can include an NC device of the machine tool 20, and includes an input unit 12, a reading interpretation unit 14, an interpolation unit 16, and a servo control unit. 18, a measurement command unit 22, an inspection item list storage unit 24, a display unit 26, and a pass / fail determination unit 28.
- the input unit 12 can be configured by network means such as a LAN, a keyboard, a touch panel, and the like.
- the display unit 26 can be configured by a display attached to the NC device of the machine tool 20.
- the machining program 30, the inspection item list 32, and the acceptance criteria 34 are input to the input unit 12.
- the machining program 30 can be generated by, for example, a CAM system.
- the inspection item list 32 and the acceptance criteria 34 can be determined by, for example, a workpiece designer, a CAM operator, or an operator of the machine tool 20 in consideration of a requirement for a workpiece to be machined according to the machining program 30.
- the machining program 30 input to the input unit 12 is output to the reading interpretation unit 14 as indicated by an arrow 12a, and the reading interpretation unit 14 reads and interprets this machining program and outputs an operation command 14a.
- This operation command includes the feed amount and feed speed in the X-axis, Y-axis, and Z-axis directions.
- the operation command 14 a output from the reading interpretation unit 14 is sent to the interpolation unit 16.
- the interpolation unit 16 interpolates the received operation command 14a in the X-axis, Y-axis, and Z-axis directions based on the interpolation function, and outputs X-, Y-, and Z-axis position commands (pulse position command) that match the feed rate. ) 16a is output to the servo control unit 18.
- the servo control unit 18 uses the received X-axis, Y-axis, and Z-axis position commands 16 a to generate current values 18 a for driving the X-axis, Y-axis, and Z-axis feed axes of the machine tool 20.
- To X-axis, Y-axis, and Z-axis servo motors (not shown).
- the inspection item list 32 and the acceptance criteria 34 input to the input unit 12 are sent to the inspection item list storage unit 24 together with the machining program 30, as indicated by an arrow 12b.
- the inspection item list storage unit 24 stores the inspection item list 32 and the acceptance criteria 34 in association with the machining program 30.
- the inspection item list 32 includes at least a measurement mode and a measurement method. Measurement modes include manual measurement, semi-automatic measurement, and automatic measurement.Measurement methods include inner circle measurement to measure the inner diameter of the circular recess, outer circle measurement to measure the outer diameter of the cylindrical side, and rectangular recess measurement.
- Pocket measurement for measuring the length in two orthogonal directions of the opening groove measurement for measuring the width of the groove, block measurement for measuring the distance between each of the two pairs of opposing side faces of the rectangular parallelepiped protrusion, Reference surface measurement, reference point measurement, etc. are included.
- the inspection item list may be directly input by the operator from the keyboard or touch panel of the input unit 12.
- the inspection item list storage unit 24 sends inspection items related to the machining program 30 to the measurement command unit 22 based on the inspection item list 32 received from the input unit 12 (arrow 24a).
- the inspection item list storage unit 24 also sends the inspection item list 32 to the display unit 26 as shown by the arrow 24b, and sends the acceptance criteria 34 to the pass / fail judgment unit 28 as shown by the arrow 24c.
- the measurement command unit 22 stores in advance a measurement program corresponding to each inspection item included in the inspection item list 32 and a measurement guidance corresponding to the measurement program.
- the measurement command unit 22 sends a measurement program corresponding to the inspection item received from the inspection item list storage unit 24 to the reading / interpretation unit 14 as indicated by an arrow 22a, and to the display unit 26 as indicated by an arrow 22b. Sends measurement guidance according to the measurement program.
- the acceptance / rejection determination unit 28 receives the measurement result from the machine tool 20 as shown by the arrow 20a, and compares this with the acceptance criterion 34 received from the inspection item list storage unit 24, so that the processed workpiece is within a predetermined processing error. It is determined whether or not the workpiece has been processed by the process No. and the determination result is sent to the display unit 26 as indicated by an arrow 28a.
- a machining result list 36 is displayed together with a drawing 38 related to the completed machining program.
- the machining result list 36 includes a program number 36a, a machining start date and time 36b, a machining time 36c, and a machining data name indicating a folder storing a computer file such as a text file in which data related to a tool or a workpiece is described. 36d can be included.
- the program number of the machining program (O1000 in FIG. 2) is used as an argument and output from the server (not shown) to the display unit 26 via the input unit 12 and the inspection item list storage unit 24 via the LAN. You can
- an inspection as shown in FIG. 3 is made on the display unit 26 based on the inspection item list received from the inspection item list storage unit 24.
- the item list window is displayed.
- the inspection number 42 in FIG. 3, 1 to 3 are shown as inspection numbers
- measurement result determination 44 measurement result determination 44
- measurement mode 46 measurement method 48, and the like are displayed. ing.
- the inspection of inspection number 1 indicates that the coordinate acquisition as the measurement method 48 is manually measured as the measurement mode 46. That is, by manually operating the X-axis, Y-axis, or Z-axis feed axis of the machine tool 20, the measurement probe is placed on a predetermined part of the processed workpiece, for example, a predetermined apex, and a side surface.
- the X-axis, Y-axis, or Z-axis coordinates when the measurement probe comes into contact with a predetermined portion along the direction of the axis of the machine tool 20 are read out by the coordinate reading means of the feed axis device, for example, the X-axis, Y-axis or It means that measurement is performed by reading from a digital scale (not shown) of the Z axis.
- the inspection item list window of FIG. 3 also includes the determination 44 about the measurement result as described above.
- the processed workpiece has passed the inspection of inspection number 1, and the inspection of inspection number 2 is performed. This indicates that the inspection with inspection number 3 failed.
- the inspection of inspection number 2 indicates that the inner circle measurement as the measurement method 48 is performed semi-automatically as the measurement mode 46.
- the inner circle measurement is a measurement method for measuring the inner diameter of the circular recess, and the XY coordinates (which may include the Z coordinate) and X of the center of the circular recess are measured as measurement items. The diameter of the recess measured in the axial and Y-axis directions is included. Further, in the example of FIG. 3, the determination of the inspection of inspection number 2 is “not yet”, indicating that the inspection of this item has not yet been performed.
- the measurement of the inner diameter measurement by semi-automatic operation as shown in FIG.
- a guidance window is displayed on the display unit 26.
- the icon 52 indicates inner diameter measurement as a measurement method
- the icon 54 should be disposed in the circular recess Rc so that the measurement probe Pm is manually indicated by the graphic 56. It is shown that.
- the operator manually operated the handles of the feed axes of the X axis, Y axis, and Z axis of the machine tool 20 and visually confirmed that the measurement probe Pm was placed in the circular recess Rc of the workpiece W.
- the inner diameter measurement is automatically performed by the machine tool 20 according to the measurement program. That is, when the positioning completion button 58 is clicked or tapped, the measurement command unit 22 sends the stored measurement program to the reading interpretation unit 14, and the reading interpretation unit 14 reads, interprets, and interpolates the measurement program.
- the operation command is sent to the unit 16, the interpolation unit 16 sends the position command to the servo control unit 18, and the servo control unit 18 outputs the drive current to the X-axis, Y-axis, and Z-axis servomotors of the machine tool 20. .
- the machine tool 20 drives the feed axes of the X axis, the Y axis, and the Z axis based on the measurement program. In this way, the machine tool 20 calculates the measurement result based on the values of the digital scales of the X axis, the Y axis, and the Z axis when the measurement probe Pm attached to the tip of the spindle comes into contact with the processed workpiece W.
- the measurement result is sent to the pass / fail judgment unit 28.
- the pass / fail determination unit 28 compares the measurement result received from the machine tool 20 with the acceptance criteria received from the inspection item list storage unit 24, and the determination result is displayed on the display unit 26. For example, in the example of FIG. 3, the determination result is displayed in the determination 44.
- a gradebook window as shown in FIG. 5 is displayed.
- a list 62 of inspection results is displayed together with a processing result list 64 similar to the above-described processing result list 36.
- the inspection result list 62 and the processing result list 64 displayed in the grade table window can be printed as hard copies or stored in a server or the like as electronic files.
- the tool data list 72 includes a tool name 72b, a use time 72c, a time 72d used for actual cutting, a length 72e actually cut, a maximum load 72f of the spindle on which the tool is mounted, and a spindle on which the tool is mounted.
- the maximum loads 72g and 72h in the thrust direction and the radial direction are collected in association with the tool number 72a.
- the operator can measure the processed workpiece according to the inspection item list by enabling the inspection item list window to be displayed from the processing result window. It is possible to execute the inspection without wondering what inspection should be performed.
- the inspection item list may be created independently of the machining program, or may be incorporated into the machining program by a programmer. By incorporating the measurement program into the machining program, it is possible to prevent inspection items from being leaked.
- an ID number can be assigned to the measurement program portion, and the measurement result can be associated with the ID number and stored in the storage unit of the control device 10.
- an interlock may be incorporated in the machining program so that the machining of the next workpiece is not started before the determination by the pass / fail judgment unit 28 for all the inspections described in the inspection item list.
- ⁇ Tool life can be estimated by displaying data related to the usage status of tools used in machining. Further, by including the maximum load acting on the tool and the spindle in the tool data, it is possible to determine whether or not the cutting speed can be further increased than the current state. Moreover, the maximum value of the load that has acted on the tool in the past can be stored in the storage unit of the control device 10, and the machining can be stopped when a larger load acts during machining with the same machining program. .
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Abstract
Description
図1において、本発明の実施形態による工作機械20の制御装置10は、工作機械20のNC装置を含む構成とすることができ、入力部12、読取解釈部14、補間部16、サーボ制御部18、測定指令部22、検査項目リスト記憶部24、表示部26および合否判定部28を具備している。入力部12は、LANのようなネットワーク手段、キーボード、タッチパネル等より構成することができる。表示部26は、工作機械20のNC装置に付属しているディスプレイによって構成することができる。
ある加工プログラムによる加工が完了すると、図2に示すように、加工結果が表示される。一例として図2に示す加工結果のウインドウには、加工結果一覧表36が、完了した加工プログラムに関連した図面38と共に表示される。加工結果一覧表36は、プログラム番号36a、加工開始日時36b、加工に要した時間36c、工具やワークに関連したデータを記載した例えばテキストファイルのようなコンピュータファイルを格納したフォルダを示す加工データ名36dを含むことができる。図面38は、例えば、加工プログラムのプログラム番号(図2ではO1000)を引数として、LAN経由でサーバー(図示せず)から入力部12および検査項目リスト記憶部24を介して表示部26へ出力するようにできる。
12 入力部
14 読取解釈部
16 補間部
18 サーボ制御部
20 工作機械
22 測定指令部
24 検査項目リスト記憶部
26 表示部
28 合否判定部
30 加工プログラム
32 検査項目リスト
34 合格基準
50 検査開始ボタン
64 加工結果一覧
Claims (7)
- 加工プログラムに基づいて工作機械を制御する制御装置において、
加工プログラムに対応させてワークの検査項目リストを記憶する記憶部と、
前記加工プログラムを実行したときに、前記加工プログラムに対応させて記憶した前記検査項目を表示する表示部と、
を具備することを特徴とした工作機械の制御装置。 - 前記工作機械の制御装置は入力部を更に具備しており、該入力部に前記検査項目リストが前記加工プログラムと共に入力される請求項1に記載の制御装置。
- 前記検査項目リストは、少なくとも測定モードと測定方法とを含み、
測定モードは、手動測定、半自動測定および自動測定を含み、
測定方法は、円形凹所の内径を測定する内円測定、円柱状側面の外径を測定する外円測定、矩形凹所の開口部の直交する2方向の長さを測定するポケット測定、溝の幅を測定する溝測定、直方体状の突出部の対向する二対の側面の各々の側面間の距離を測定するブロック測定、基準面測定、基準点測定を含む群から選択される請求項1に記載の制御装置。 - 前記制御装置は、前記検査項目リストに記載されている測定方法を実行するための測定プログラムを格納した測定指令部を更に具備している請求項3に記載の制御装置。
- 前記測定指令部には、該検査項目リストに記載されている測定方法の手順をオペレーターに教示する測定ガイダンスが格納されている請求項4に記載の制御装置。
- 前記検査項目リストは、前記加工プログラム中に組み込まれている請求項1に記載の制御装置。
- 前記検査項目リストを記憶する記憶部は合格基準を記憶しており、
前記制御装置は、前記検査項目リストから合格基準を受け取り、前記加工プログラムによって加工したワークの測定結果の合否を判定する合否判定部を更に具備する請求項1に記載の制御装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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EP13900092.1A EP3088977B1 (en) | 2013-12-27 | 2013-12-27 | Control apparatus for machine tool |
JP2015554471A JP6076503B2 (ja) | 2013-12-27 | 2013-12-27 | 工作機械の制御装置 |
CN201380081395.6A CN105793787B (zh) | 2013-12-27 | 2013-12-27 | 工作机械的控制装置 |
PCT/JP2013/085218 WO2015097893A1 (ja) | 2013-12-27 | 2013-12-27 | 工作機械の制御装置 |
US15/108,223 US10599128B2 (en) | 2013-12-27 | 2013-12-27 | Control device for a machine tool |
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PCT/JP2013/085218 WO2015097893A1 (ja) | 2013-12-27 | 2013-12-27 | 工作機械の制御装置 |
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EP (1) | EP3088977B1 (ja) |
JP (1) | JP6076503B2 (ja) |
CN (1) | CN105793787B (ja) |
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JP6665412B2 (ja) * | 2015-03-23 | 2020-03-13 | 株式会社タダノ | 作業機械の調整装置 |
TWI641933B (zh) * | 2016-01-15 | 2018-11-21 | 施教競 | Processing method of processing machine |
JP6849626B2 (ja) * | 2018-03-09 | 2021-03-24 | ファナック株式会社 | 携帯端末を用いた設備点検システム及び設備点検方法 |
DE102018122759A1 (de) * | 2018-09-17 | 2020-03-19 | Chiron-Werke Gmbh & Co. Kg | Verfahren und Vorrichtung für eine Verschleißanalyse an einer Werkzeugmaschine |
EP3623883B1 (de) * | 2018-09-17 | 2024-07-24 | Adelbert Haas GmbH | Verfahren und werkzeugmaschine zur bearbeitung von werkstücken unbekannter werkstückgeometrie |
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EP3088977B1 (en) | 2019-08-28 |
CN105793787A (zh) | 2016-07-20 |
CN105793787B (zh) | 2019-10-18 |
JPWO2015097893A1 (ja) | 2017-03-23 |
EP3088977A4 (en) | 2017-09-06 |
US10599128B2 (en) | 2020-03-24 |
JP6076503B2 (ja) | 2017-02-08 |
EP3088977A1 (en) | 2016-11-02 |
US20160327935A1 (en) | 2016-11-10 |
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