WO2012029436A1 - 数値制御工作機械 - Google Patents
数値制御工作機械 Download PDFInfo
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- WO2012029436A1 WO2012029436A1 PCT/JP2011/066801 JP2011066801W WO2012029436A1 WO 2012029436 A1 WO2012029436 A1 WO 2012029436A1 JP 2011066801 W JP2011066801 W JP 2011066801W WO 2012029436 A1 WO2012029436 A1 WO 2012029436A1
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- WIPO (PCT)
- Prior art keywords
- workpiece
- tool
- machining
- spindle
- actual
- Prior art date
Links
- 238000003754 machining Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 20
- 238000004088 simulation Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 239000000523 sample Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/013—Control or regulation of feed movement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
- B23Q17/2457—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of tools
- B23Q17/2461—Length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
- B23Q17/2457—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of tools
- B23Q17/2466—Diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
- B23Q17/2452—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces
- B23Q17/2471—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves for measuring features or for detecting a condition of machine parts, tools or workpieces of workpieces
-
- 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
- G05B2219/37586—Detect, discriminate cutting or non cutting machining state
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
- Y10T409/300896—Milling with regulation of operation by templet, card, or other replaceable information supply with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]
Definitions
- the present invention relates to a numerically controlled machine tool such as a machining center, a horizontal boring machine, a portal type plano miller, or the like.
- machining centers In numerically controlled machine tools such as machining centers, horizontal boring machines, and portal planar millers, prior to processing, conventionally, a workpiece that is fixed and supported on a table using a touch sensor such as a touch probe is used. By measuring the position of a predetermined location, the processing start point, the inclination of the reference surface, and the like are obtained.
- the moving speed (feeding speed) of the contact type sensor such as a touch probe may be made too high in terms of accuracy. I could't do it and it took a long time.
- an object of the present invention is to provide a numerically controlled machine tool capable of quickly measuring an actual three-dimensional state of a workpiece mounted on a table via a jig or the like. .
- a numerically controlled machine tool includes a spindle that is detachably attached to a tool, a table that fixes and supports a workpiece, and a length of the tool that is attached to the spindle.
- Tool measuring means for measuring the length and diameter, work measuring means for measuring the three-dimensional shape, position and orientation of the work fixedly supported on the table in a non-contact manner, and information from the work measuring means Based on the above, after obtaining the position of the machining start point and the inclination of the reference surface, based on the inputted machining program, information from the tool measurement means and the workpiece measurement means, the position of the machining start point and the While controlling the operation of at least one of the spindle and the table so as to process the workpiece on the table from the inclination of the reference surface, the tool When the tool is positioned in a non-machining region that moves relative to the workpiece without contacting the workpiece, the tool is moved at a speed faster than the relative moving speed of the tool defined in the machining program. Control means for controlling the operation of at least one of the spindle and the table to move the tool relative to the workpiece.
- the workpiece measuring means measures the three-dimensional shape, position and orientation of the workpiece fixedly supported on the table in a non-contact manner. It is possible to quickly measure the actual three-dimensional state of the workpiece attached via the contact.
- FIG. 1 is a schematic configuration diagram of a main embodiment of a numerically controlled machine tool according to the present invention. It is a control block diagram of the principal part of main embodiment of the numerical control machine tool concerning this invention. It is a control flowchart of the principal part of main embodiment of the numerically controlled machine tool which concerns on this invention.
- a numerically controlled machine tool 100 is attached to a spindle 102 on which a tool 101 is detachably attached and rotated, a table 103 that fixes and supports a workpiece 1, and the spindle 102.
- a three-dimensional shape is combined with a tool measurement sensor 104 which is a tool measurement means for measuring a two-dimensional shape of the length and diameter of the tool 101 and a jig of the workpiece 1 fixedly supported on the table 103.
- a workpiece measuring sensor 105 which is a workpiece measuring means that performs non-contact measurement using light or the like.
- the tool measurement sensor 104 and the workpiece measurement sensor 105 are electrically connected to an input unit of a control device 106 that is a control means.
- An input device 107 that is an input means for inputting various machining conditions such as a machining program is electrically connected to the input unit of the control device 106.
- the output section of the control measure 106 moves the drive motor 108 that rotates the tool 101 attached to the main shaft 102 and the tool 101 and the workpiece 1 in the X, Y, and Z axis directions relatively.
- the motors 109 to 111 for moving the spindle 102 and the table 103 are electrically connected to a display device 112 which is an information display means such as a speaker and a monitor for displaying various kinds of information by voice or video.
- the control device 106 controls the operation of the motors 108 to 111 based on the information from the sensors 104 and 105 and the information input from the input device 107, and displays various information on the display device 112. Can be displayed (details will be described later).
- various machining conditions such as a machining program are input to the control device 106 with the input device 107 (S1 in FIG. 3), and when the tool 101 is mounted on the spindle 102, the control device 106
- the motors 109 to 111 are operated so that the tool measurement sensor 104 measures the size of the two-dimensional outer shape of length and diameter, and the tool 101 and the tool measurement sensor 104 are relatively moved in the X and Y directions. , Move in the Z-axis direction (S2 in FIG. 3).
- control device 106 determines the actual two-dimensional dimensions of the tool 101 such as the length between the spindle end and the tip of the tool 101 and the diameter on the tip side based on the information from the tool measurement sensor 104. To obtain a suitable external size.
- the control device 106 causes the three-dimensional outline, position, and orientation of the workpiece 1 combined with the jig on the table 103.
- the workpiece measuring sensor 105 and the workpiece 1 are relatively moved in the X, Y, and Z-axis directions by operating the motors 109 to 111 so that the workpiece measuring sensor 105 measures the above-described values (FIG. 3).
- Medium, S3 the workpiece measuring sensor 105 measures the above-described values
- control device 106 obtains the actual three-dimensional outer shape, position, and orientation of the work 1 combined with the jig on the table 103 based on information from the work measurement sensor 105. .
- control device 106 inputs the machining program and the workpiece 1 based on the actual outer shape of the tool 101 and the actual outer shape, position, and orientation of the workpiece 1 obtained as described above. Seeking compatibility with.
- control device 106 first determines the shape of the workpiece assumed by the machining program input from the input device 107 based on the actual outer shape of the workpiece 1 and the actual shape on the table 103.
- the shape of the workpiece 1 is compared to determine whether the machining content to be performed and the workpiece 1 to be machined are compatible (S4 in FIG. 3), and the workpiece assumed by the machining program If the shape of the workpiece 1 and the shape of the workpiece 1 on the table 103 are incompatible, that is, if the machining content to be performed differs from the workpiece 1 to be machined, the fact is displayed on the display device 112. Then, the worker is warned (S5 in FIG. 3).
- the control device 106 obtains a machining reference value such as the position of the machining start point and the inclination of the reference surface based on the position and orientation of the workpiece 1 (S6 in FIG. 3).
- the actual machining reference value such as the obtained position of the machining start point and the inclination of the reference surface, and the assumption of the position of the machining start point assumed by the inputted machining program and the inclination of the reference surface, etc.
- the control device 106 does so. Is displayed on the display device 112 to warn the operator, and information on the position and orientation of the work 1 that has become incompatible is displayed (S8 in FIG. 3).
- the control device 106 When the actual machining reference value matches the assumed machining reference value, that is, when the actual position and orientation of the workpiece 1 on the table 103 match, the control device 106 The various machining conditions such as the inputted machining program, the actual two-dimensional shape of the measured length and diameter of the tool 101, the actual three-dimensional shape of the measured workpiece 1 were obtained. Based on the actual processing reference values such as the position of the processing start point and the inclination of the reference surface, simulation is performed to the final shape intended for processing on the actual workpiece 1 including the jig on the table 103 (in FIG. 3). , S9).
- a machining simulation up to the final shape of the actual workpiece 1 as described above is performed to check for the following machining defects (S10 in FIG. 3).
- machining defects S10 in FIG. 3
- Presence / absence of machining load exceeding specified value (removal allowance for size exceeding specified value).
- the said control apparatus 106 displays that on the said display apparatus 112, and alerts an operator, and also displays the content (a location, a magnitude
- control device 106 operates the motors 108 to 111 to perform actual machining on the workpiece 1 on the table 103 in the same manner as in the machining simulation. Control is started (S12 in FIG. 3).
- the control device 106 performs actual machining based on the machining simulation, and is defined by the machining program when the tool 101 is in a machining area in contact with the workpiece 1 (S13 in FIG. 3).
- the operation of the motors 109 to 111 is controlled so as to relatively move the spindle 102 and the table 103 as shown (S14 in FIG. 3), while the tool 101 moves without contacting the workpiece 1. In the non-machining region, the motors 109 to 109 move the tool 101 relative to the work 1 at a speed faster than the moving speed of the tool 101 specified by the machining program.
- the operation of 111 is controlled (override) (S15 in FIG. 3).
- the numerically controlled machine tool 100 obtains the three-dimensional actual shape of the workpiece 1 including the jig and the like by the workpiece measurement sensor 105 that performs non-contact measurement such as laser light. It was.
- the actual three-dimensional state of the workpiece 1 mounted on the table 103 via a jig or the like can be quickly measured.
- the following effects can be obtained.
- the tool measurement sensor 104 that measures the shape such as the length and diameter of the tool 101 and the workpiece measurement sensor 105 that measures the three-dimensional shape of the workpiece 1 in a non-contact manner are provided.
- the tool measurement sensor 104 and the workpiece measurement sensor 105 are combined to measure the shape such as the length and diameter of the tool 101 and the three-dimensional shape of the workpiece 1. It is also possible to provide measuring means for measuring the shape and the like.
- the interference between the workpiece 1 side including a jig and the tool 101 side such as a feed base (ram) is performed in the machining simulation before the actual machining.
- machining is performed while simulating a state ahead of the machining point (for example, after 5 seconds), and the workpiece 1 side including the jig and the like and the feed base (
- the control means displays this fact on the display means, warns the operator, and simultaneously displays the location where the interference occurs. It is also possible to temporarily stop the processing, that is, to provide a collision prevention function (see, for example, Patent Document 1).
- the present invention can be applied as in the above-described embodiment if it is a numerically controlled machine tool such as a machining center, a horizontal boring machine, or a portal-type planomilla.
- the numerically controlled machine tool according to the present invention can quickly measure the actual three-dimensional state of a workpiece mounted on a table via a jig or the like, it is extremely useful in the metalworking industry and the like. can do.
Abstract
Description
本発明に係る数値制御工作機械の主な実施形態を図1~3に基づいて説明する。
(1)治具等を含めたワーク1側と送り台(ラム)等の工具101側との干渉の有無。
(2)規定値以上の加工負荷(規定値以上のサイズの取り代)の有無。
(3)ワーク1の取り残しの有無。
なお、前述した実施形態においては、ワーク1の三次元的な形状等をレーザ光等で非接触式に計測するワーク計測センサ105を備えるようにした場合について説明したが、これに代えて、他の実施形態として、例えば、ワーク1の三次元的な形状等を撮影するCCDカメラを備えるようにすることも可能である。
100 数値制御工作機械
101 工具
102 主軸
103 テーブル
104 工具計測センサ
105 ワーク計測センサ
106 制御装置
107 入力装置
108~111 駆動モータ
112 表示装置
Claims (1)
- 工具を着脱可能に取り付けられて回転させる主軸と、
ワークを固定支持するテーブルと、
前記主軸に取り付けられた前記工具の長さ及び径を計測する工具計測手段と、
前記テーブル上に固定支持された前記ワークの三次元的な形状と位置及び向きとを非接触で計測するワーク計測手段と、
前記ワーク計測手段からの情報に基づいて、加工開始点の位置及び基準面の傾きを求めた後、入力されている加工プログラムに基づいて、前記工具計測手段及び前記ワーク計測手段からの情報並びに前記加工開始点の位置及び前記基準面の傾きから、前記テーブル上の前記ワークに対して加工を施すように前記主軸及び前記テーブルの少なくとも一方の作動を制御しながら、前記工具が前記ワークに接触せずに当該ワークに対して相対的に移動する非加工領域に位置しているときに、当該加工プログラムで規定されている当該工具の相対的な移動速度よりも速い速度で当該工具を当該ワークに対して相対的に移動させるように前記主軸及び前記テーブルの少なくとも一方の作動を制御する制御手段と
を備えていることを特徴とする数値制御工作機械。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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CN2011800219899A CN102870055A (zh) | 2010-08-31 | 2011-07-25 | 数控机床 |
US13/643,933 US20130071198A1 (en) | 2010-08-31 | 2011-07-25 | Numerically-controlled machine tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010193181A JP2012053509A (ja) | 2010-08-31 | 2010-08-31 | 数値制御工作機械 |
JP2010-193181 | 2010-08-31 |
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WO2012029436A1 true WO2012029436A1 (ja) | 2012-03-08 |
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PCT/JP2011/066801 WO2012029436A1 (ja) | 2010-08-31 | 2011-07-25 | 数値制御工作機械 |
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US (1) | US20130071198A1 (ja) |
JP (1) | JP2012053509A (ja) |
CN (1) | CN102870055A (ja) |
WO (1) | WO2012029436A1 (ja) |
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JP6043234B2 (ja) | 2013-04-15 | 2016-12-14 | オークマ株式会社 | 数値制御装置 |
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CN100343770C (zh) * | 2005-09-14 | 2007-10-17 | 山东大学 | 一种数控车床的智能控制系统及其控制方法 |
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2010
- 2010-08-31 JP JP2010193181A patent/JP2012053509A/ja active Pending
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2011
- 2011-07-25 US US13/643,933 patent/US20130071198A1/en not_active Abandoned
- 2011-07-25 WO PCT/JP2011/066801 patent/WO2012029436A1/ja active Application Filing
- 2011-07-25 CN CN2011800219899A patent/CN102870055A/zh active Pending
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JPS63128403A (ja) * | 1986-11-19 | 1988-06-01 | Mitsubishi Electric Corp | 加工機制御の補間動作方法 |
JPS63250711A (ja) * | 1987-04-07 | 1988-10-18 | Mitsubishi Electric Corp | ワ−ク加工装置の加工速度設定方法 |
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JP2009163414A (ja) * | 2007-12-28 | 2009-07-23 | Japan Society For The Promotion Of Machine Industry | 工具衝突防止装置、工具衝突防止方法、およびncプログラム |
Also Published As
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CN102870055A (zh) | 2013-01-09 |
US20130071198A1 (en) | 2013-03-21 |
JP2012053509A (ja) | 2012-03-15 |
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