WO2013100576A1 - Procédé pour fabriquer une structure de base pour machine-outil pour réduire une déformation thermique et structure de base fabriquée par le procédé - Google Patents

Procédé pour fabriquer une structure de base pour machine-outil pour réduire une déformation thermique et structure de base fabriquée par le procédé Download PDF

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Publication number
WO2013100576A1
WO2013100576A1 PCT/KR2012/011483 KR2012011483W WO2013100576A1 WO 2013100576 A1 WO2013100576 A1 WO 2013100576A1 KR 2012011483 W KR2012011483 W KR 2012011483W WO 2013100576 A1 WO2013100576 A1 WO 2013100576A1
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WO
WIPO (PCT)
Prior art keywords
base structure
machine tool
material pipe
dissimilar material
pipe
Prior art date
Application number
PCT/KR2012/011483
Other languages
English (en)
Korean (ko)
Inventor
황재형
심동섭
양식
정기환
김태원
Original Assignee
두산인프라코어 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 두산인프라코어 주식회사 filed Critical 두산인프라코어 주식회사
Priority to CN201280057435.9A priority Critical patent/CN104144767A/zh
Publication of WO2013100576A1 publication Critical patent/WO2013100576A1/fr

Links

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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/01—Frames, beds, pillars or like members; Arrangement of ways
    • B23Q1/015—Frames, beds, pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • 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
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/28—Means for securing sliding members in any desired position
    • 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
    • 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
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work

Definitions

  • the present invention relates to a method for manufacturing a base structure for a machine tool for reducing thermal displacement and to a base structure manufactured by the method, and more particularly, to a machine tool base structure having a cast iron material, for example, heat generation of a bed and a column.
  • a machine tool base structure having a cast iron material for example, heat generation of a bed and a column.
  • the bed and column of the machine tool components are used as the base structure in the machine tool, the thermal displacement of the bed and column is very important in the machining precision of the machine tool.
  • the most effective method of reducing the heat displacement is to form a cooling flow path in the bed and column and to cool it by using a coolant medium such as an angle oil or an angle water, thereby reducing the total silver deviation of the bed and column to reduce the thermal displacement. It is to let.
  • the bed and column have a thick cross section and a thin cross section, and in particular, because of the long shape, the size of the square channel that can be formed is limited.
  • the object of the present invention is to predict the heat generation of the base structure for machine tools, such as bed and column, having a cast iron material in advance to specify the portion that needs cooling
  • the cooling medium flows through the cooling channel to reduce the overall temperature deviation of the bed and column, thereby reducing the thermal displacement to improve the processing accuracy of the machine tool.
  • the present invention provides the formation of a cooling passage in or around the portion that requires cooling in the base structure for machine tools having a cast iron material Surface treatment step of surface treatment of the dissimilar material pipe provided by the plating or spraying method; A mold installation step of installing the dissimilar material pipe on a mold in a molding and molding process; And 1 to 3 Bar, 3 to 6 Bar, or 6 to 9
  • Inlet pressure for 10-30, 30-60 or 60-90 minutes at the pressure of bar to cool inside until the junction interface reaches 1,150-1,000 ° C or 1,000-600 ° C It provides a method for manufacturing a base structure for a machine tool for reducing the heat displacement, comprising the step.
  • the present invention further provides the following specific embodiments of the above-described embodiment of the present invention.
  • the dissimilar material pipe is a carbon steel pipe
  • the surface of the dissimilar material pipe is zinc, tin or nickel 0.5 ⁇
  • the present invention in the base structure for a machine tool having a cast iron material, the zinc, tin or nickel in the portion or the periphery that needs to be inclined by 0.5 / / m ⁇ m thickness by the method of plating or spraying Reduction of thermal displacement, characterized in that the cooling flow path through which the different media is formed through the surface-treated dissimilar material pipe, and the molten metal is injected into the dissimilar material pipe area to provide the dissimilar material pipe by casting. It provides a base structure for a machine tool for.
  • the present invention further provides the following specific embodiments of the above-described embodiment of the present invention. ⁇
  • the machine tool base structure is characterized in that the column or bed.
  • a base structure for a machine tool having a cast iron material for example Predict the heat generation conditions of the bed and column in advance to identify the part that needs to be angled, and cast and join dissimilar material pipes to the corresponding part to form the angled channel, and then to flow the angled medium through the angled channel.
  • FIG. 1 is a perspective view of a column as a base structure for a machine tool for reducing thermal displacement ⁇
  • FIG. 2 is a cross-sectional structural view of FIG. 1.
  • FIG. 3 is an enlarged view illustrating main parts of FIG. 2.
  • 4 is an image showing the microstructure of the stainless steel (alloy steel) pipe joint surface.
  • 5 is a graph of hardness distribution of carbon steel and stainless steel (alloy steel) pipes.
  • 6 is an image of a state in which an unbonded portion is formed due to an oxidation inclusion.
  • FIG. 8 is an image of a non-bonded portion of a dissimilar material pipe formed at a relief air pressure of 11 Bar.
  • FIG. 9 is a configuration diagram of a dissimilar material pipe relief method installed in a mold.
  • FIG. 1 is a perspective view of a column as a base structure for a machine tool for reducing thermal displacement
  • FIG. 2 is a cross-sectional structural view of FIG. 1
  • FIG. 3 is an enlarged view of a main part of FIG. 2
  • FIG. 4 is a stainless steel (alloy steel) pipe joint surface.
  • "microstructure come shown image Figure 5 is carbon steel and stainless steel (alloy steel), the hardness distribution graph of a pipe
  • Figure 6 is an image of the formation of the non-junction due to the oxide inclusions state
  • Figure 7 is two kinds below nyaenggak air pressure 1 Bar The image showing the melt disappearance of the material pipe
  • Figure 8 is an image of a state in which the non-bonded portion of the dissimilar material pipe formed at 11 bar of cooling air pressure.
  • the base structure for the machine tool system will be described as a column 10, but the same structure and method may be applied to a bed (not shown).
  • FIG. 1 is a perspective view of the column 10
  • FIG. 2 is a longitudinal cross-sectional view of the column 10 shown in FIG. 1
  • FIG. 3 is an enlarged view of a portion indicated by a circular dotted line in FIG.
  • the guideway 11 of 10 the present invention will be described in detail.
  • the method for manufacturing a machine tool base structure for reducing thermal displacement may include a surface treatment step, a mold installation step, and an engraving step.
  • the surface treatment step is to plate the heterogeneous pipe 20 provided for forming the cooling flow path 40 in the base structure for the machine tool system having a cast iron material, that is, the portion or the periphery that requires cooling in the column 10. Or surface treatment by a spraying method.
  • the dissimilar material pipe 20 may be a pipe made of carbon steel, and the surface of the dissimilar material pipe 20 may be surface treated with zinc, tin, or nickel at a thickness of 0.5 / ⁇ 10 ' .
  • the mold installation step is a step of installing the dissimilar material pipe 20 in the mold during the molding and molding process.
  • dissimilar material pipe 20 for 10-30, 30-60 or 60-90 minutes at the pressure of 1 to 3 Bar, 3-6 Bar, or 6 to 9 Bar during injection of molten metal Into the inside of the step is to sense the temperature until the junction interface 30 reaches 1,150 ⁇ 1,000 ° C or 1,000 ⁇ 600 ° C.
  • This method i.e., a base structure for machine tools having a cast iron material, i.e., zinc, tin or nickel is coated or sprayed on the corresponding part requiring periphery in the column 10 to a thickness of 0.5 m to 10 by a method of thermal spraying.
  • a cooling flow path 40 through which a cooling medium flows, and injecting molten metal into the dissimilar material pipe 20 to provide a dissimilar material pipe 20 by casting.
  • the column 10 which is an example of the base structure for a machine tool applied in the present embodiment, may be cast iron.
  • the material of the column 10 may be used for various metal materials such as cast steel and cast iron, but it may be particularly preferable to use gray cast iron.
  • the dissimilar material pipe 20 used as the bonding material may be a low carbon steel material in which trace amounts are added in an impurity form even if alloys such as cr and molybdenum are not added or diarrhea is added.
  • the dissimilar material pipe 20 may have a circular cross section.
  • the interface between the molten metal and the dissimilar material pipe 20 by surface melting and diffusion during molten metal injection as shown in FIG. 4 (see FIG. 3). Since chromium and molybdenum carbides and redbutite are generated, the surface hardness is higher than that of carbon steel as shown in FIG. 5, which may cause significant problems in machining.
  • the dissimilar material pipe 20 applied to the present invention is a low carbon steel material in which trace amounts are added in the form of impurities even if an alloy such as chromium and molybdenum is not added or diarrhea is added.
  • the dissimilar material pipe 20 may be a pipe made of stainless steel.
  • zinc, tin or nickel is roughly applied to the outer circumferential surface of the dissimilar material pipe 20 that is the joining material.
  • Surface treatment to a thickness of ⁇ 10im and then intervening. At this time, the surface treatment can be carried out by plating or spraying.
  • zinc, tin, or nickel surface-treated on the outer circumferential surface of the dissimilar material pipe 20 has a function of preventing oxides generated from the metal surface.
  • the unbonded portion may be generated at the bonding interface 30 (see FIG. 3) due to the surface oxidation as shown in FIG. 6.
  • zinc, tin, or nickel serves as a surface accelerator between the molten metal and the dissimilar material pipe 20 to improve the bonding ability.
  • the metals surface-treated between the molten metal and dissimilar material pipes 20 It can be maintained in the state to improve the bonding between the two materials by promoting mutual alloying by indirect contact of the two materials.
  • the dissimilar material pipe 20 is installed in the mold during molding.
  • the guideway 11 of the column 10, and a different shape in the form of pipes are cast in the molding process so that the cooling flow path 40 by the hollow part is formed inside the mold in the casting process in the portion where the corner angle is necessary.
  • the dissimilar material pipe 20 should be drawn out of the flask so that the dissimilar material pipe 20 can be sensed when molten metal is injected.
  • the casting sand attached to the outer peripheral surface of the dissimilar material pipe 20 should be completely removed during the installation process. If the casting sand is attached to the dissimilar material pipe (20), the unbonded portion may be generated due to the casting defects generated by the casting sand.
  • molten metal is injected.
  • cooling is performed by injecting air into the dissimilar material pipe 20 drawn out of the flask. In this case, the air is 1-3 Bar, 3-6 Bar. Cool by spraying with air pressure in the range of 6 ⁇ 9 Bar.
  • the molten metal When cooling below the air pressure range, the molten metal may be layered into the cooling passage 40 by melting of the dissimilar material pipe 20 as shown in FIG. 7.
  • Figure 9 is a block diagram of a heterogeneous pipe cooling method installed in the mold
  • Figure 10 is a thermal analysis simulation results for the column.
  • the cooling time of the dissimilar material pipe 20 is cooled for 10 to 30 minutes or 30 to 60 minutes from the molten metal injection point so that the temperature of the junction interface 30 is 1,150 to 1,000 °. C and it is preferable to carry out cooling until it reaches 1,000-600 ° C.
  • the purpose of preventing grain coarsening or excessive carburization of the dissimilar material pipe 20 by the excessive volume ratio is to prevent the melting.
  • the air when the air is generally used as a cooling medium to prevent melting of the dissimilar material pipe 20 as described above, the oxidation of the cooling passage 40 should be minimized. Nitrogen gas can also be used.
  • volume ratio of molten metal and the dissimilar material pipe 20 is 3: 1 or less, it is preferable not to apply cooling.
  • the bonding force between the molten metal and the joining material is important in casting joining.
  • the dissimilar material pipe 20 used as the joining material for improving the joining force between the molten metal and the dissimilar material pipe 20 used as the joining material Zinc, tin, or nickel is coated on the surface of the surface by spraying or spraying, and molten metal is prevented to prevent deformation or melting of the bonding material, which may be caused by excessive volume ratio of molten metal and bonding material.
  • the joint material is cooled by using constant air or nitrogen gas at a constant pressure so that the temperature of the joint interface 30 is changed to a range of 1,150 to 600 ° C. have.
  • the heat generation amount was the highest in the guideway 11 where linear reciprocation occurred, and the maximum temperature was obtained when the cooling flow path 40 was formed in this area. It was found to decrease by 0.9 ° C and confirmed this.
  • the column 10 manufactured by the above method flows a cooling medium such as cooling water or cooling oil through the cooling channel 40 formed by forming the cooling channel 40 in a specific portion where the angle is required.
  • the thermal strain can be suppressed by enjoying the silver deviation of the part.
  • the heat generating situation of the machine tool base structure having a cast iron material, for example, the column 10 is predicted in advance to specify a portion requiring cooling, and the heterogeneous pipe 20 is casted to the portion.
  • the angled channel 40 By forming the angled channel 40 and then flowing the angled medium through the angled channel 40, it is possible to reduce the overall temperature deviation of the column 10 to improve the processing precision of the machine tool.
  • the present invention relates to a method for manufacturing a machine tool base structure for reducing thermal displacement and to a base structure manufactured by the method, and more particularly, to a machine tool base structure having a cast iron material, for example, heat generation of a bed and a column.
  • a machine tool base structure having a cast iron material for example, heat generation of a bed and a column.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Articles (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

La présente invention porte sur un procédé pour fabriquer une structure de base pour une machine-outil pour réduire une déformation thermique et sur une structure de base fabriquée par le procédé. Le procédé pour fabriquer une structure de base pour une machine-outil pour réduire la déformation thermique comprend les étapes suivantes, consistant à : traiter la surface d'un tuyau hétérogène (20) par placage ou pulvérisation thermique, le tuyau (20) étant disposé pour former une trajectoire de refroidissement (40) sur ou autour d'une partie correspondante pour laquelle un refroidissement est requis dans une structure de base pour une machine-outil réalisée en un matériau en fonte ; disposer le tuyau hétérogène (20) sur un moule dans le processus de moulage ou de réunion par moulage ; et introduire de l'air ou du gaz azote à l'intérieur du tuyau hétérogène (20) sous des pressions de 1 à 3 bars, de 3 à 6 bars ou de 6 à 9 bars pendant 10 à 30, 30 à 60 ou 60 à 90 minutes et effectuer un refroidissement jusqu'à ce que la température d'une surface de réunion (30) atteigne 1 150 à 1 000 °C ou 1 000 à 600 °C.
PCT/KR2012/011483 2011-12-26 2012-12-26 Procédé pour fabriquer une structure de base pour machine-outil pour réduire une déformation thermique et structure de base fabriquée par le procédé WO2013100576A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201280057435.9A CN104144767A (zh) 2011-12-26 2012-12-26 用于减少热变形的机床用基座的制造方法及通过该方法制造的基座

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0141881 2011-12-26
KR1020110141881A KR20130074030A (ko) 2011-12-26 2011-12-26 열변위 저감을 위한 공작기계용 베이스 구조물 제조방법 및 그 방법에 의해 제조된 베이스 구조물

Publications (1)

Publication Number Publication Date
WO2013100576A1 true WO2013100576A1 (fr) 2013-07-04

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KR (1) KR20130074030A (fr)
CN (1) CN104144767A (fr)
WO (1) WO2013100576A1 (fr)

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Publication number Priority date Publication date Assignee Title
KR102443403B1 (ko) 2017-07-07 2022-09-15 주식회사 디엔솔루션즈 공작기계의 컬럼 냉각 장치
CN107511688A (zh) * 2017-10-20 2017-12-26 湖南国汇新材料有限公司 一种带有恒温水循环系统的矿物铸件机床及其工作方法
CN108607954B (zh) * 2018-07-28 2019-12-10 重庆宏钢数控机床有限公司 防踢式机床床身的制作工艺
CN113427317A (zh) * 2021-05-27 2021-09-24 北京精雕科技集团有限公司 一种机床结构件的温控结构及制造方法
KR20220170437A (ko) 2021-06-23 2022-12-30 임정희 공작 기계용 배드

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JPH06126564A (ja) * 1992-10-15 1994-05-10 Makino Milling Mach Co Ltd 冷却液流通パイプを鋳込んだ工作機械の構造体
JPH07236963A (ja) * 1994-03-01 1995-09-12 Ube Ind Ltd 加熱・冷却孔を有する成形用金型の製造方法および成形用金型
JP2000141021A (ja) * 1998-11-12 2000-05-23 Nippon Chuzo Kk 冷却用パイプ鋳包み鋳鉄品およびその製造方法
JP2003112250A (ja) * 2001-10-04 2003-04-15 Nkk Corp 冷却管鋳包み鋳鉄品およびその製造方法
WO2009036520A1 (fr) * 2007-09-20 2009-03-26 Cast Centre Pty Ltd Alliage et procédé de réparation

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IT1228449B (it) * 1989-02-22 1991-06-19 Temav Spa Procedimento per ottenere un legame metallurgico tra un materiale metallico o composito a matrice metallica e un getto di metallo o di lega metallica.
CN1187151C (zh) * 2002-02-09 2005-02-02 安阳钢铁集团有限责任公司 一种内置水冷通道铸钢件的制造方法
DE112005000326B4 (de) * 2004-02-18 2010-02-25 Horkos Corp., Fukuyama Linearführungsvorrichtung einer Werkzeugmaschine
WO2005097402A1 (fr) * 2004-04-07 2005-10-20 Hpt Sinergy S.R.L. Aleseuse-fraiseuse horizontale pourvue d'une colonne mobile

Patent Citations (5)

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Publication number Priority date Publication date Assignee Title
JPH06126564A (ja) * 1992-10-15 1994-05-10 Makino Milling Mach Co Ltd 冷却液流通パイプを鋳込んだ工作機械の構造体
JPH07236963A (ja) * 1994-03-01 1995-09-12 Ube Ind Ltd 加熱・冷却孔を有する成形用金型の製造方法および成形用金型
JP2000141021A (ja) * 1998-11-12 2000-05-23 Nippon Chuzo Kk 冷却用パイプ鋳包み鋳鉄品およびその製造方法
JP2003112250A (ja) * 2001-10-04 2003-04-15 Nkk Corp 冷却管鋳包み鋳鉄品およびその製造方法
WO2009036520A1 (fr) * 2007-09-20 2009-03-26 Cast Centre Pty Ltd Alliage et procédé de réparation

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CN104144767A (zh) 2014-11-12
KR20130074030A (ko) 2013-07-04

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