WO2008010309A1 - Machine outil - Google Patents

Machine outil Download PDF

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Publication number
WO2008010309A1
WO2008010309A1 PCT/JP2007/000606 JP2007000606W WO2008010309A1 WO 2008010309 A1 WO2008010309 A1 WO 2008010309A1 JP 2007000606 W JP2007000606 W JP 2007000606W WO 2008010309 A1 WO2008010309 A1 WO 2008010309A1
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WO
WIPO (PCT)
Prior art keywords
temperature
heat medium
heat
base
column
Prior art date
Application number
PCT/JP2007/000606
Other languages
English (en)
Japanese (ja)
Inventor
Ichiro Araie
Shuichi Kawada
Taro Hasegawa
Original Assignee
Sodick Co., Ltd.
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 Sodick Co., Ltd. filed Critical Sodick Co., Ltd.
Publication of WO2008010309A1 publication Critical patent/WO2008010309A1/fr

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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
    • 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
    • B23Q15/18—Compensation of tool-deflection due to temperature or force
    • 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
    • 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
    • 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
    • B23Q11/143—Methods or arrangements for maintaining a constant temperature in parts of machine tools comprising heating means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/044—Means preventing deflection of the frame, especially for C-frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/49—Nc machine tool, till multiple
    • G05B2219/49204—Control of heat to compensate for dilatation, thermal displacement

Definitions

  • the present invention relates to a machine tool having a configuration capable of reducing a thermal displacement generated in a structure by a heat medium controlled to a predetermined control target temperature.
  • heat insulating material is affixed to the outer peripheral surfaces of the bed and the column, and this heat insulating material transmits the temperature change due to the surrounding air-conditioning environment to the bed. It was regulated. However, the machine tool does not have a means for controlling the temperature itself, such as a heating means and a cooling means, and even if a slight temperature change due to changes in the surrounding environment can be regulated, the temperature change can be changed even in a short time. In the case where the formation width was larger than the allowable limit, the temperature after the change eventually transferred to the column and could cause thermal displacement.
  • Patent Document 2 a machine tool shown in Patent Document 2 is disclosed. That is, the machine tool of the literature 2 is provided with a cooling plate in which heat exchange oil is circulated in a column portion provided with a tool and a holding portion that holds the cake, and has a means for controlling the temperature itself. . As a result, the machine tool can keep the temperature of the column part and holding part constant even if the surrounding temperature environment changes. A heat conductive filler is interposed between the cooling plate and the column portion and the holding portion, and heat is actively transmitted through the filler. [0005] Patent Document 1: Japanese Patent Laid-Open No. 2 0 0 3 — 3 0 0 1 2 2
  • Patent Document 2 Japanese Patent Laid-Open No. 2 0 0 _ 2 6 2 3 7 9
  • the heat medium is generally supplied with a constant control target temperature, it is normally controlled with a slight temperature fluctuation relative to the control target temperature, and the fluctuation is about 0.1 K. In many cases, it is acceptable.
  • the present invention has been made in view of such circumstances, and a machine that can reduce the thermal displacement of the structure and improve the machining accuracy by buffering the temperature fluctuation of the heat medium with respect to the control target temperature.
  • the purpose is to provide machines.
  • a machine tool (1) has a configuration in which the temperature of a structure is kept constant using a heat medium, and the temperature of the heat medium is controlled.
  • a heat medium temperature control device (5 0) that controls to a target temperature, and the configuration includes a heat conduction buffer that buffers a temperature variation of the heat medium with respect to the control target temperature between the heat medium and the structure. Since 2 2) is included, even if the temperature of the heat medium fluctuates with respect to the control target temperature, this temperature fluctuation can be buffered and transmitted to the structure.
  • the machine tool (1) includes a flow path (
  • the heat exchange plate (20) has a flow path (2 1 c) and A configuration in which a heat conduction buffer (22) for buffering temperature fluctuation of the heat medium with respect to the control target temperature is interposed between the outer peripheral surface and the outer peripheral surface is included.
  • a machine tool (1) includes a base (2) forming a base, a column (3) erected on the base (2), and a column (3)
  • a machining head (4) for mounting a tool (E) for machining the workpiece (W), a workpiece holding unit (5) for arranging the joint (W), and a flow path (21 c) heat exchange that is mounted on the outer peripheral surface of at least one of the base (2) and the column (3) to keep the temperature of at least one of the base (2) and the column (3) constant
  • a heat medium temperature control device (50) for controlling the temperature of the heat medium to a control target temperature
  • the heat exchange plate (20) includes the flow path (21 c) and the outer peripheral surface.
  • a heat conduction buffer (22) that buffers the temperature fluctuation of the heat medium relative to the control target temperature. Therefore, even if the temperature of the heat medium fluctuates with respect to the control target temperature, this temperature fluctuation can be buffered and transmitted to the base and column.
  • a machine tool (1) includes a base (2) that forms a base, a column (3) that is erected on the base (2), and a column (3).
  • the machining head (4) for mounting the tool (E) for machining the workpiece (W), the workpiece holding unit (5) for placing the workpiece (W), and the flow path (21) c) a heat exchange plate that is mounted on the outer peripheral surface of at least one of the base (2) and the column (3) and maintains a constant temperature of at least one of the base (2) and the column (3) (20), and a heat medium temperature control device (50) for controlling the temperature of the heat medium to a control target temperature, and the heat exchange plate (20) includes a flow path (21c) and the outer peripheral surface.
  • the heat conduction buffer (22) that buffers the temperature fluctuation of the heating medium within the target regulation range is included, there is a case where the temperature of the heating medium fluctuates with respect to the control target temperature. However, this temperature fluctuation can be buffered within the target regulation range and transmitted to the base and column.
  • the machine tool (1) includes a base (2) that forms a base, a column (3) that is erected on the base (2), and a column (3) is installed in the machining head (4) for mounting the tool (E) for machining the workpiece (W), the workpiece holding unit (5) for arranging the workpiece (W), and the heat medium is circulated.
  • It includes a flow path (21 c) and is attached to the outer peripheral surface of at least one of the base (2) and column (3) to keep the temperature of at least one of the base (2) and column (3) constant
  • a heat exchange plate (20) that holds the heat medium
  • a heat medium temperature control device (50) that controls the temperature of the heat medium within a certain temperature fluctuation range and within a certain temperature fluctuation period with respect to the control target temperature.
  • the heat exchange plate (20) has a certain thickness between the flow path (21c) and the outer peripheral surface.
  • the thickness of the heat conduction buffer (22) includes the control target temperature, the maximum temperature fluctuation width, the longest temperature fluctuation period, and the heat medium.
  • the temperature control time of the heat medium by the temperature control device (50) and the temperature variation of the heat medium based on the temperature variation pattern of the heat medium set by are buffered within the target regulation range. Therefore, even when the temperature of the heat medium fluctuates with respect to the control target temperature, the temperature fluctuation can be buffered within the target regulation range and transmitted to the base or column. Since the temperature fluctuation pattern is set based on the maximum temperature fluctuation width and the longest temperature fluctuation period, the thickness of the heat conduction buffer can be set on the safe side.
  • the heat medium temperature control device (50) includes, for example, the temperature of the heat medium detected by the temperature detector (52a) provided on the heat medium supply path and the control target temperature. Based on the difference, the temperature of the heat medium is controlled within a certain temperature fluctuation range and within a certain temperature fluctuation period with respect to the control target temperature.
  • the heat conduction buffer (22) is made of plastic material such as vinyl chloride. If configured, the relatively low thermal conductivity acts and the thickness of the heat conduction buffer is set small, which contributes to the weight reduction and compactness of the machine tool. The invention's effect
  • FIG. 1 is a diagram showing a configuration of an electric discharge machining apparatus according to a first embodiment of the present invention.
  • FIG. 2 is a plan view showing a configuration of a heat exchange plate attached to the electric discharge machining apparatus
  • FIG. 3 is a cross-sectional view showing a configuration of the heat exchange plate.
  • FIG. 4 is a block diagram showing a configuration of a cooling medium temperature control device.
  • FIG. 5 A schematic diagram for explaining the state of temperature fluctuation in the temperature control of the cooling medium.
  • FIG. 6 is a schematic diagram for explaining a method for setting the thickness of the heat conduction buffer plate of the heat exchange plate.
  • FIG. 7 is a graph showing an example of a temperature variation pattern of a cooling medium and a buffer state of temperature variation on the back side of the heat conduction buffer plate.
  • FIG. 8 is a diagram showing a mounting location of a heat exchange plate of an electric discharge machining apparatus according to a second embodiment of the present invention.
  • FIG. 9 is a view showing a mounting location of a heat exchange plate of an electric discharge machining apparatus according to a third embodiment of the present invention.
  • FIG. 10 is a cross-sectional view showing a configuration of a heat exchange plate of an electric discharge machining apparatus according to a fourth embodiment of the present invention.
  • Air temperature control unit Air supply unit Cooling medium temperature control unit Control target temperature input unit Cooling medium temperature comparison unit a Temperature detector
  • FIG. 1 is a configuration diagram showing an outline of an electric discharge machining apparatus (machine tool) showing a first embodiment of the present invention.
  • the outline of the electric discharge machining apparatus will be described with reference to FIG. 1.
  • the electric discharge machining apparatus 1 is erected on the base 2 of the apparatus 1 and the rear surface of the upper surface of the base 2, and includes an inclined surface at the top.
  • Each structure includes a work holding unit 5 and a work table 7 on which a processing tank 6 is placed.
  • a cover 8 is provided around the base 2, the column 3, and the machining head 4 at a certain distance from the outer peripheral surface of the base 2 and the like.
  • a heat exchange plate 20 described in detail later is mounted on the outer peripheral surfaces of the base 2 and the column 3. It has been.
  • the entire electric discharge machining apparatus 1 is accommodated in the chamber 9.
  • a Z-axis motor 10 z is accommodated in the machining head 4, and an X-axis motor 10 X and a Y-axis motor 10 y are accommodated in the work table 7.
  • axis motors 10 x to 10 z feed means
  • An air supply unit provided with an air temperature control device 30 outside the chamber 9
  • cooling medium temperature control device 50 a cooling medium temperature control device 50
  • the air that is set at a constant temperature by the air temperature control device 30 and the air supply unit 40 is formed between the cover 8, the base 2, the column 3, and the outer peripheral surface of the machining head 4. It is continuously supplied to the chamber 9 and further to the X-axis, Y-axis, and Z-axis feed hydrostatic bearings (not shown). As a result, the electrical discharge machine 1 It is kept at a constant temperature without being affected.
  • the cooling medium (heat medium) controlled to a constant control target temperature by the cooling medium temperature control device 50 and the cooling medium supply unit 60 is continuously supplied to the heat exchange plate 20. Thereby, even when outside air flows into the chamber 19 or when an operator touches the cover 8 in maintenance work or the like, the temperature uniformity of the electric discharge machining apparatus 1 is further secured.
  • a cooling pipe (not shown) is wound around each of the shaft motors 10 x, 10 y, and 10 z, and this cooling pipe is also cooled by the cooling medium temperature control device 50 and the cooling medium supply unit 60. A cooling medium controlled to a constant control target temperature is supplied. As a result, the temperatures of the shaft motors 10 x, 10 y, and 10 z are also kept constant.
  • the heat exchange plate 20 is composed of a pipe member 21 and a heat conduction buffer plate (heat conduction buffer) 22.
  • the pipe member 21 is composed of a plurality of straight pipe parts 21a and a curved pipe part 21b connecting one end part of the adjacent straight pipe parts 21a, and has a meandering shape.
  • the tube member 21 has a hollow portion with a circular cross section inside.
  • the hollow portion functions as a flow path 21 c for circulating the cooling medium.
  • the cooling medium for example, a liquid such as oil or water, or a gas such as air can be employed, and the liquid is particularly preferable from the viewpoint of cooling efficiency.
  • the heat conduction buffer plate 22 is formed in a flat plate shape, and is provided so as to be interposed between the flow path 21 c of the cooling medium, the base 2 and the column 3.
  • a pipe fitting 2 2 c is provided on the surface side 2 2 a of the heat conduction buffer plate 2 2, and the pipe member 21 is attached to the surface side 2 2 a by this pipe fitting 2 2 c. It is possible.
  • the back side 2 2 b of the heat conduction buffer plate 2 2 is in contact with the base 2 and the column 3, and the cooling medium flowing through the flow path 2 1 c of the pipe member 2 1 through this back side 2 2 b Heat is exchanged between base 2 and column 3.
  • the heat conduction buffer plate 22 has a function of buffering and transmitting the temperature variation of the cooling medium with respect to the control target temperature. By setting the thickness to a constant value, the temperature fluctuation of the cooling medium is buffered within the target regulation range.
  • the heat exchange plate 20 includes a configuration in which the heat conduction buffer plate 22 is interposed between the flow path 21 c through which the cooling medium flows and the outer surfaces of the base 2 and the column 3. Therefore, even when the temperature of the cooling medium fluctuates with respect to the control target temperature, the temperature fluctuation can be buffered and transmitted to the base 2 and the column 3. Therefore, the temperature uniformity of the base 2 and the column 3 is further secured.
  • the heat conduction buffer plate 2 2 is attached to the outer peripheral surface of the level 2 and the column 3 by a fastener such as an adhesive or port.
  • Constituent materials of the heat conduction buffer plate 22 are plastic materials having relatively low thermal conductivity, and more specifically, general-purpose plastics such as polyvinyl chloride and polyethylene, polyamide, polyacetal, polyphew. Engineering plastics such as dilene sulfide are preferred.
  • a vinyl chloride material typified by polyvinyl chloride (vinyl chloride resin) is more preferable because it can be procured inexpensively and easily.
  • a material having a relatively high thermal conductivity such as a ceramic or iron-based material is a material that can buffer the temperature fluctuation of the cooling medium within a desired range by appropriately setting the thickness. If so, it can be used as a material for the heat conduction buffer plate 22.
  • the cooling medium temperature control device 50 includes a control target temperature input unit 51, a cooling medium temperature comparison unit 52, and a cooling medium temperature command output unit 53. ing. That is, as shown in FIG. 5, these parts function together to control the temperature of the cooling medium within a certain temperature fluctuation range with respect to the control target temperature and within a certain temperature fluctuation cycle.
  • the control target temperature is set to 29.61.15 K (23 ° C)
  • the temperature fluctuation range is within 0.1 K
  • the temperature fluctuation period is within 1 s. It has the ability to control the temperature of the cooling medium.
  • the control target temperature input unit 51 receives the control target temperature of the cooling medium by keyboard operation, volume operation, touch panel operation, or the like. It has a function to output the input control target temperature to the coolant temperature comparison unit 52.
  • the cooling medium temperature comparison unit 52 receives the control target temperature from the control target temperature input unit 51, and also inputs the cooling medium temperature from the temperature detector 52a provided on the cooling medium supply path.
  • the cooling medium temperature comparison unit 52 has a function of calculating the temperature difference and outputting the temperature difference to the cooling medium temperature command output unit 53.
  • the coolant temperature command output unit 53 receives the difference between the control target temperature and the detected coolant temperature from the coolant temperature comparison unit 52, and performs cooling based on this temperature difference. It has a function to output a control signal to the medium supply unit 60.Next, in order to buffer the temperature fluctuation of the cooling medium within the target regulation range and transmit it to the base 2 and the column 3, A method for setting the thickness of the heat conduction buffer plate 22 will be described.
  • the thickness of the heat conduction buffer plate 22 includes the control target temperature, the maximum width of the temperature fluctuation range, the longest period of the temperature fluctuation period, and the temperature control of the cooling medium by the cooling medium temperature control device 50.
  • Time, target regulation range for cooling medium temperature fluctuation due to the action of the heat conduction buffer plate 2 2, heat conductivity of the heat conduction buffer plate 2 2, specific heat of the heat conduction buffer plate 2 2, and heat conduction buffer plate Based on the density of 22 and, it can be set by analysis using the calculation formula of the temperature variation pattern of the cooling medium and the Fourier law.
  • the thickness of the heat conduction buffer plate 22 is calculated as unsteady heat conduction because the temperature of the cooling medium fluctuates with respect to the control target temperature. From the Fourier law, This can be calculated and set by a forward differential type differential equation such as
  • the heat conduction buffer plate 22 interposed between the pipe member 21 and the outer peripheral surface of the base 2 and the column 3 is divided into N in the heat transfer direction.
  • the heat conduction buffer plate 22 interposed between the pipe member 21 and the outer peripheral surface of the base 2 and the column 3 is divided into N in the heat transfer direction.
  • the heat input and output of each element is as shown in Fig. 6 (b) to (d).
  • each element is a
  • the area of the surfaces in contact with each other is A
  • the temperature of an element n is the temperature of the element n _ 1 on the left side of the element n
  • the element n + 1 on the right side is T n + 1
  • the amount of heat entering the element ⁇ during the time ⁇ ⁇ (hereinafter referred to as the calculation unit time)
  • Aq n is the amount of heat entering from the left side with the thermal conductivity k
  • the temperature of the pipe member 21 is, for example, the cooling medium temperature Tp, t shown in Equation 8 (the calculation formula of the temperature fluctuation pattern of the cooling medium)
  • Tp, t f (Tbase, Trange, B, t)
  • Tbase Cooling medium control target temperature [K]
  • the material of the heat conduction buffer plate 22 is polyvinyl chloride, and the heat conductivity k of the heat conduction buffer plate 22 is 0.16 [JZ (m ⁇ s ⁇ K)] as shown in Table 1.
  • the specific heat cp is set to 0.95 [k JZ (kg 'K)]
  • the density ⁇ is set to 1400 [k gZm 3 ]
  • the number of divisions N in the heat transfer direction of the heat conduction buffer plate 22 is set to 5, calculation unit
  • the time At is set to 0.0005 [s] as shown in FIG. 7, the control on the back side 22b of the heat conduction buffer plate 22 is performed.
  • the thickness NX a of heat conduction buffer plate 22 should be It can be seen that it needs to be set to about 18 mm. Since the above-described temperature variation pattern is set based on the maximum temperature variation width and the longest temperature variation cycle, the thickness of the heat conduction buffer plate 22 can be set on the safe side.
  • the second embodiment of the present invention shows a configuration in which the mounting location of the heat exchange plate 20 is expanded.
  • the heat exchange plate 20 is mounted on the outer peripheral surface of the base 2 and the column 3, and is further mounted on the outer peripheral surface of the processing head 4. Thereby, even when the processing head 4 is cooled by using the heat exchange plate 20, the temperature variation of the cooling medium can be buffered.
  • the third embodiment of the present invention also has a configuration in which the mounting location of the heat exchange plate 20 is expanded, and in the case where a heating element such as a machining head 4 is provided inside the electric discharge machining apparatus, A configuration is shown in which a heat exchange plate is further mounted on the inner surface of the structure facing the heating element.
  • the heat exchange plate 20 of the present invention is attached to the inner surface of the machining head 4 facing the Z-axis motor 10 z housed inside the machining head 4. ing.
  • the Z axis motor 10 z generates heat. Even in this case, it is possible to prevent this heat generation from being transmitted to the machining head 4 and to buffer the temperature fluctuation of the cooling medium.
  • the fourth embodiment of the present invention shows a configuration in which the configuration of the heat exchange plate 20 is partially changed. Specifically, as shown in FIG. 10, a gap 2 2 d is formed between the back side 2 2 b of the heat conduction buffer plate 2 2 and the outer peripheral surfaces of the base 2 and the column 3, and this gap 2 2 d It is set as the structure which interposes air. Thereby, the air present in the gap 22 d also acts as a heat conduction buffer, so that the thickness of the heat conduction buffer plate 22 can be set small.
  • the present invention is not limited to the first to fourth embodiments described above, and it is needless to say that various applications or modifications can be made as necessary.
  • a single material is adopted for the heat conduction buffer plate 22 of the heat exchange plate 20.
  • various heat conduction buffers such as vinyl chloride materials may be employed for the pipe member 21 and the pipe fitting 2 2 c.
  • the thickness of the heat transfer buffer plate 2 2 is set by calculation, but the temperature on the front side 2 2 a and the back side 2 2 b of the heat transfer buffer plate 2 2 is measured and set. It may be.
  • the base 2 and the column 3 are cooled by a cooling medium, a heating medium may be employed as necessary to heat the base 2 and the column 3.
  • the present invention can be used for machine tools. Specifically, it is useful when the temperature of the heat medium fluctuates with respect to the control target temperature in a machine tool having a configuration that reduces the thermal displacement generated in the structure by the heat medium.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Machine Tool Units (AREA)

Abstract

Il est possible de réduire les déplacements d'une structure sous l'effet de la chaleur en enregistrant les fluctuations d'un milieu chauffant par rapport à une température cible de commande pour améliorer la précision d'usinage. À cet effet une machine outil (1) comprend une base (2), une colonne (3) dressée sur la base (2), une tête d'usinage (4), placée sur la colonne (3), et portant l'outil (E) d'usinage de la pièce à usiner (W), une unité de fixation (5) de la pièce à usiner (W) et un canal d'apport du milieu chauffant. La machine outil (1) comprend en outre une plaque d'échangeur thermique (20), monté à la périphérie de la base (2) ou de la colonne (3) pour maintenir moins la base (2) ou la colonne à une température donnée, et un régulateur (50) de la température du milieu chauffant. La plaque d'échangeur thermique (20) comporte un tampon de conduction thermique (22) enregistrant les fluctuations de température du milieu chauffant par rapport à la température cible et placé entre un canal d'écoulement (21c) et la périphérie extérieure.
PCT/JP2007/000606 2006-07-21 2007-06-05 Machine outil WO2008010309A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-199194 2006-07-21
JP2006199194A JP4596480B2 (ja) 2006-07-21 2006-07-21 工作機械および同工作機械における熱伝導緩衝体の厚み設定方法

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Publication Number Publication Date
WO2008010309A1 true WO2008010309A1 (fr) 2008-01-24

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Cited By (5)

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US20140069609A1 (en) * 2012-09-06 2014-03-13 Daniel CAIHUZAC Air-temperature regulation device for a machine tool
EP2826582A1 (fr) * 2013-07-17 2015-01-21 Applied Materials Switzerland Sàrl Dispositif de sciage par fil et son procédé de fabrication
EP2907620A1 (fr) * 2014-02-17 2015-08-19 DECKEL MAHO Pfronten GmbH Machine-outil dotée d'un bâti de machine composé d'éléments structuraux et méthode pour celle-ci
DE202014105522U1 (de) * 2014-11-17 2016-02-18 Heckert Gmbh Temperiermittel und Werkzeugmaschine enthaltend ein erfindungsgemäßes Temperiermittel
CN115079658A (zh) * 2022-08-22 2022-09-20 安徽新境界自动化技术有限公司 一种智能化生产线监测系统

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JP6955655B2 (ja) * 2016-11-14 2021-10-27 株式会社ニイガタマシンテクノ 工作機械の温度調整装置
JP6858323B2 (ja) * 2016-11-14 2021-04-14 株式会社ニイガタマシンテクノ 工作機械の温度調整装置

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US20140069609A1 (en) * 2012-09-06 2014-03-13 Daniel CAIHUZAC Air-temperature regulation device for a machine tool
CN103659456A (zh) * 2012-09-06 2014-03-26 科茂法兰西公司 机床的空调
EP2826582A1 (fr) * 2013-07-17 2015-01-21 Applied Materials Switzerland Sàrl Dispositif de sciage par fil et son procédé de fabrication
EP2907620A1 (fr) * 2014-02-17 2015-08-19 DECKEL MAHO Pfronten GmbH Machine-outil dotée d'un bâti de machine composé d'éléments structuraux et méthode pour celle-ci
CN104858709A (zh) * 2014-02-17 2015-08-26 德克尔马霍普夫龙滕有限公司 具有用结构件构成的机架的机床
US10118267B2 (en) 2014-02-17 2018-11-06 Deckel Maho Pfronten Gmbh Machine tool with a machine rack constructed of structural parts
CN104858709B (zh) * 2014-02-17 2020-09-29 德克尔马霍普夫龙滕有限公司 具有用结构件构成的机架的机床
DE202014105522U1 (de) * 2014-11-17 2016-02-18 Heckert Gmbh Temperiermittel und Werkzeugmaschine enthaltend ein erfindungsgemäßes Temperiermittel
DE102015119784A1 (de) 2014-11-17 2016-05-19 Heckert Gmbh Temperiervorrichtung für eine Werkzeugmaschine sowie Werkzeugmaschine und Verfahren zur Temperierung einer Werkzeugmaschine
DE102015119784B4 (de) 2014-11-17 2019-06-19 Starrag Gmbh Temperiervorrichtung für eine Werkzeugmaschine sowie Werkzeugmaschine
CN115079658A (zh) * 2022-08-22 2022-09-20 安徽新境界自动化技术有限公司 一种智能化生产线监测系统

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