WO2009031672A1 - 工作機械の移動体の冷却方法及び装置 - Google Patents
工作機械の移動体の冷却方法及び装置 Download PDFInfo
- Publication number
- WO2009031672A1 WO2009031672A1 PCT/JP2008/066135 JP2008066135W WO2009031672A1 WO 2009031672 A1 WO2009031672 A1 WO 2009031672A1 JP 2008066135 W JP2008066135 W JP 2008066135W WO 2009031672 A1 WO2009031672 A1 WO 2009031672A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cooling
- machine tool
- moving body
- coolant
- heat generation
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 58
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000000110 cooling liquid Substances 0.000 claims abstract description 17
- 239000002826 coolant Substances 0.000 claims description 27
- 230000020169 heat generation Effects 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 12
- 238000009826 distribution Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000004088 simulation Methods 0.000 abstract description 5
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 5
- 230000002411 adverse Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012916 structural analysis Methods 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/12—Arrangements for cooling or lubricating parts of the machine
- B23Q11/126—Arrangements for cooling or lubricating parts of the machine for cooling only
- B23Q11/128—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling frame parts
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/14—Methods or arrangements for maintaining a constant temperature in parts of machine tools
- B23Q11/141—Methods or arrangements for maintaining a constant temperature in parts of machine tools using a closed fluid circuit for cooling or heating
-
- 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
-
- 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
- Y10T409/303752—Process
-
- 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
- Y10T409/303976—Milling with means to control temperature or lubricate
-
- 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
- Y10T409/309576—Machine frame
- Y10T409/309744—Machine frame including means to compensate for deformation
Definitions
- the present invention relates to a cooling method and apparatus for cooling a heat generating portion of a moving body of a machine tool and reducing a variation in thermal deformation of the moving body.
- Machine tools are required to send moving objects such as tables and saddles at high speed in order to increase machining efficiency.
- the moving body of a machine tool has a sliding surface
- frictional heat is generated by sliding surface friction when the moving body is fed at high speed.
- the frictional heat is transmitted to each part of the moving body, the moving body is thermally deformed, and there is a problem that the mechanical accuracy of the machine is deteriorated.
- a technique for maintaining the accuracy of the machine by removing the heat generated by the friction of the sliding surface of the saddle on the machine tool bed is disclosed in Japanese Patent Laid-Open No. 2 0 0 0-1 1 7 5 7 1 Has been.
- a pipe for passing coolant is provided in the rib on the bed sliding surface or below the saddle sliding surface, and the cooling liquid is circulated in the pipe so as to circulate the bed sliding surface or saddle sliding. It suppresses the temperature rise on the moving surface.
- Japanese Patent Laid-Open No. 0 2-1 6 6 3 3 7 a technique for adjusting the flow rate of the cooling liquid according to the heat generation amount of each part and supplying the same to make the temperature of each part of the machine uniform is disclosed in Japanese Patent Laid-Open No. 0 2-1 6 6 3 3 7 is disclosed.
- pipes for passing coolant through the heat generating parts of the machine are provided, flow control valves are provided in the middle of each pipe, and the flow rate of the cooling liquid is adjusted according to the amount of heat generated at each part of the machine. This suppresses the temperature variation of each part of the machine.
- 2 0 0-1 1 7 5 7 1 and 2 0 0 2-1 6 6 3 3 7 has a temperature sensor in each part of the machine.
- One part is embedded and the temperature of each part or the temperature difference of each part is detected. Then, by adjusting the temperature and flow rate of the coolant according to the detected temperature level and circulating the coolant, heat generation in each part of the machine can be reduced and variations in temperature in each part of the machine can be suppressed. .
- a large number of temperature sensors and flow rate adjusting means are required, and there is a problem that the machine becomes expensive. Disclosure of the invention
- the present invention has been made to solve the above-described problems, and the object of the present invention is to predict the heat generation state of a moving body of a machine tool, specify a cooling part, and cool to the specified cooling part. It is an object of the present invention to provide a cooling method and apparatus for a moving body of a machine tool, in which a liquid is poured to reduce fluctuations in thermal deformation of the moving body.
- a cooling method for a moving body of a machine tool wherein (a) the state of heat generation of each part of the moving body generated during operation of the machine tool is predicted. And (b) forming a fluid conduit for flowing a coolant through the identified cooling part, (c) Supplying a coolant cooled to a predetermined temperature into the fluid conduit, and circulating the coolant by flowing the coolant from the portion where the heat generation of the specified cooling portion is small toward the portion where the heat generation is large.
- a method for cooling a moving body of a machine tool is provided.
- a cooling method for a moving body of a machine tool wherein: ( a ) the machine tool is based on design data in a design stage of the machine tool. Which occurs when driving A process of simulating the heat generation amount or temperature distribution of each part of the moving body and identifying a plurality of cooling portions that generate large amounts of heat and need to be cooled;
- the operation stage of the machine tool mentioned above refers to the stage of machining the workpiece using the machine tool.
- a cooling device for performing the above-described cooling method for a moving body of a work machine, wherein the specified cooling portion or A fluid conduit for flowing the coolant is provided in the vicinity thereof, and the fluid conduit is formed so as to communicate with the coolant so that the coolant sequentially passes through or in the vicinity of the specified cooling portion.
- a cooling device for a moving body of a machine tool provided with cooling liquid circulating means for supplying a cooling liquid cooled to a predetermined temperature into the passage and circulating the cooling liquid.
- the moving body of the machine tool expands or contracts in a short time due to the heat generated at each part, and the variation in thermal deformation is large, the machining accuracy of the workpiece will be adversely affected.
- the temperature of each part of the moving body is not equal, if the temperature difference between each part is constant and stable, the variation in thermal deformation is small, so the deterioration of the heating accuracy is small.
- the present invention pays attention to this point and tolerates a temperature difference of a few thousand in each part of the moving body, and reduces the change of the temperature difference so as not to deteriorate the processing accuracy of the workpiece. .
- the cooling part of the moving body of the machine tool is set in advance. Specifically, a fluid conduit is provided so that the coolant flows in or near the specified cooling part, and the coolant is circulated from the part where the heat generation is small toward the part where the heat generation is large. The part is cooled. For this reason, the temperature of each part of the moving body is not completely equal, but since the change in the temperature difference of each part over time is small, the fluctuation of the thermal deformation of the moving body is small. Therefore, there is almost no fluctuation of the thermal deformation of the moving body while processing one workpiece, so that the machining accuracy of the workpiece is stable.
- the present invention does not cool all of the heat generating parts, but identifies only the parts that need to be cooled because the heat generation of the moving body is large. Since it can be shortened by reducing the amount of coolant supplied, the entire system can be simplified and inexpensive.
- FIG. 1 is a side view showing an embodiment of a cooling device for a moving body of a machine tool according to the present invention.
- Fig. 2 is a cross-sectional front view of the moving body AA in Fig. 1.
- FIG. 1 is a side view showing an embodiment of a cooling device for a moving body of a machine tool according to the present invention.
- the machine tool shown in Fig. 1 has a vertical machining center with column 1 standing on a bed (not shown). Pair up and down in front of column 1
- the guide 3 is provided, and the guide 3 is provided parallel to the direction perpendicular to the paper surface.
- the guide 3 is a rectangular guide and has a plurality of guide surfaces 5.
- a saddle 7 is suspended on the guide 3, and the sliding surface 9 of the saddle 7 is engaged with the guide surface 5 of the guide 3.
- the saddle 7 can be moved on the guide 3 by a driving device (not shown) and a feed screw 1 1.
- the saddle 7 is provided with a linear guide 13 so that the spindle head 15 can move upward and downward.
- a tool spindle 17 on which a tool is mounted is supported inside the spindle head 15 and is driven to rotate by a motor 19.
- the guide surface 5 of the guide 3 and the sliding surface 9 of the saddle 7 are adjusted with appropriate surface pressure without any gaps.
- a gib 2 1 is provided between the saddle 7 and the guide 3 so that the sliding surface pressure can be adjusted.
- a gap 23 is provided between the lower surface and the upper surface of the guide 3.
- the sliding surface 9 of the saddle 7 has the sliding surfaces 9 a, 9 b, 9 c, 9 d, 9 e, and 9 f in contact with the guide surfaces 5 of the guide 3.
- the sliding surfaces 9 a to 9 f of the saddle 7 are affected by the mass of the moving body and the moment load or pressing force. Since the pressure is different, the amount of heat generated at each part of the moving body is different.
- the present invention simulates the amount of heat generation or the temperature distribution of each part of the moving body of the machine tool in advance, and generates a cooling portion that generates a large amount of heat and needs to be cooled. Multiple locations are identified, and only the identified cooling area is cooled.
- the simulation analyzes the heat generation status of each part based on the design data such as the dimensions, mass, moment load, and surface pressure of each element of the machine, and it is necessary to cool because the heat generation is large. Identify multiple critical cooling sites.
- the simulation can be performed using a structural analysis tool, for example, the product name Cosmos Works. it can.
- a fluid pipe line 25 is provided in order to flow the cooling liquid to or near the specified cooling portion of the saddle 7 (moving body).
- the fluid line 25 is composed of a pipe line 25a near the sliding surface 9a, a pipe line 25b near the sliding surface 9b, and a pipe line 25d near the sliding surface 9d.
- a pipe line 25 e is formed in the vicinity of the moving surface 9 e.
- Fig. 2 shows a cross-sectional front view of the moving body in Fig. 1. In FIG. 2, pipes 2 5 a, 2 5 b, 2 5 d, 2 5 e are connected by pipe member 2 7, and pipes 2 5 a to 2 5 e are connected to one another.
- a fluid line 25 is formed.
- the amount of heat generation is highest at the sliding surface 9 e and the sliding surface 9 a is lower than the sliding surface 9 e.
- 9 Flow coolant from the part a toward the sliding surface 9e.
- the coolant is circulated so that the coolant is supplied from the arrow B in FIG.
- the cooling liquid cooled to the predetermined temperature is circulated in this manner, the temperature of the portion of the sliding surface 9 e is stably maintained at a temperature slightly higher than the temperature of the portion of the sliding surface 9 a. Therefore, since the change in the temperature difference of each part over time is small, the variation of the thermal deformation of the moving body is small and does not adversely affect the machining accuracy of the workpiece.
- the present invention is not intended to suppress the thermal deformation by making the temperature of each part of the moving body of the machine tool equal, and the variation in the thermal deformation of the moving body is reduced by reducing the change in the temperature difference of each part. It is intended to suppress. in front
- Each of the conventional techniques described above is intended to suppress the thermal deformation by making the temperature of each part of the machine uniform. From the prior art, the slight temperature difference of each part, which the present invention has focused on, is allowed. The technical idea of reducing the change in the temperature difference and minimizing the fluctuation of thermal deformation is not sought.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Turning (AREA)
- Numerical Control (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880104199.5A CN101784367B (zh) | 2007-09-07 | 2008-09-01 | 机床的移动体的冷却方法及装置 |
KR1020107004468A KR101088774B1 (ko) | 2007-09-07 | 2008-09-01 | 공작기계 이동체의 냉각방법 및 장치 |
EP08829835.1A EP2196283B1 (en) | 2007-09-07 | 2008-09-01 | Mover cooling method and device for machine tool |
US12/676,243 US8672593B2 (en) | 2007-09-07 | 2008-09-01 | Method and apparatus for cooling mobile body of machine tool |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007233170A JP4994164B2 (ja) | 2007-09-07 | 2007-09-07 | 工作機械の移動体の冷却方法及び装置 |
JP2007-233170 | 2007-09-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009031672A1 true WO2009031672A1 (ja) | 2009-03-12 |
Family
ID=40428984
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/066135 WO2009031672A1 (ja) | 2007-09-07 | 2008-09-01 | 工作機械の移動体の冷却方法及び装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US8672593B2 (ja) |
EP (1) | EP2196283B1 (ja) |
JP (1) | JP4994164B2 (ja) |
KR (1) | KR101088774B1 (ja) |
CN (1) | CN101784367B (ja) |
WO (1) | WO2009031672A1 (ja) |
Cited By (3)
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CN103447837A (zh) * | 2013-09-13 | 2013-12-18 | 昆山市巴城镇顺拓工程机械配件厂 | 一种双向滴油润滑工作台 |
US20140270600A1 (en) * | 2010-12-15 | 2014-09-18 | Deckel Maho Seebach Gmbh | Guiding system for machine tools that is held by means of cooling bars |
JP2015175422A (ja) * | 2014-03-14 | 2015-10-05 | 日本精工株式会社 | 案内レール、転がり軸受案内装置 |
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JP5964160B2 (ja) * | 2012-07-05 | 2016-08-03 | 東芝機械株式会社 | 精密工作機械 |
CN103465102A (zh) * | 2013-09-16 | 2013-12-25 | 苏州凯欧机械科技有限公司 | 一种用于直线电机机床导轨的散热装置 |
DE102014202878A1 (de) * | 2014-02-17 | 2015-08-20 | Deckel Maho Seebach Gmbh | Werkzeugmaschine mit im Arbeitsbetrieb wärmeerzeugenden Funktionskomponenten |
US20150354054A1 (en) * | 2014-06-06 | 2015-12-10 | Applied Materials, Inc. | Cooled process tool adapter for use in substrate processing chambers |
JP6490015B2 (ja) * | 2016-01-14 | 2019-03-27 | ファナック株式会社 | 機械の冷却機構 |
CN105922023A (zh) * | 2016-07-01 | 2016-09-07 | 精益恒准(天津)数控设备股份有限公司 | 一种机床主轴头 |
US10402963B2 (en) * | 2017-08-24 | 2019-09-03 | Kla-Tencor Corporation | Defect detection on transparent or translucent wafers |
JP6603288B2 (ja) * | 2017-10-25 | 2019-11-06 | ファナック株式会社 | 工作機械の切削液供給装置 |
US10807209B2 (en) | 2018-03-09 | 2020-10-20 | Raytheon Technologies Corporation | Closed-loop fluid control to obtain efficient machining |
JP7303029B2 (ja) * | 2019-06-06 | 2023-07-04 | ファナック株式会社 | 工作機械およびシステム |
EP4011545A1 (en) * | 2020-12-10 | 2022-06-15 | Fundación Tecnalia Research & Innovation | Vertical lathe and method for controlling its dilatation |
KR102663172B1 (ko) | 2021-12-22 | 2024-05-03 | 현대위아 주식회사 | 냉각장치 설치위치 결정방법 |
DE102022211319A1 (de) * | 2022-10-25 | 2024-04-25 | TRUMPF Werkzeugmaschinen SE + Co. KG | Kühlverfahren sowie Fertigungssystem |
CN116690302A (zh) * | 2023-07-27 | 2023-09-05 | 通用技术集团机床工程研究院有限公司 | 整体床身导轨的恒温控制系统、控制方法及数控机床 |
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- 2008-09-01 WO PCT/JP2008/066135 patent/WO2009031672A1/ja active Application Filing
- 2008-09-01 US US12/676,243 patent/US8672593B2/en active Active
- 2008-09-01 EP EP08829835.1A patent/EP2196283B1/en active Active
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US9233442B2 (en) * | 2010-12-15 | 2016-01-12 | Deckel Maho Seebach Gmbh | Guiding system for machine tools that is held by means of cooling bars |
CN103447837A (zh) * | 2013-09-13 | 2013-12-18 | 昆山市巴城镇顺拓工程机械配件厂 | 一种双向滴油润滑工作台 |
JP2015175422A (ja) * | 2014-03-14 | 2015-10-05 | 日本精工株式会社 | 案内レール、転がり軸受案内装置 |
Also Published As
Publication number | Publication date |
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EP2196283A1 (en) | 2010-06-16 |
EP2196283B1 (en) | 2014-03-05 |
JP4994164B2 (ja) | 2012-08-08 |
KR20100043088A (ko) | 2010-04-27 |
CN101784367A (zh) | 2010-07-21 |
JP2009061564A (ja) | 2009-03-26 |
EP2196283A4 (en) | 2013-04-03 |
US20100183393A1 (en) | 2010-07-22 |
CN101784367B (zh) | 2012-06-27 |
KR101088774B1 (ko) | 2011-12-02 |
US8672593B2 (en) | 2014-03-18 |
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