EP0101456A1 - Systeme isothermique pour machine-outil - Google Patents

Systeme isothermique pour machine-outil

Info

Publication number
EP0101456A1
EP0101456A1 EP19830900594 EP83900594A EP0101456A1 EP 0101456 A1 EP0101456 A1 EP 0101456A1 EP 19830900594 EP19830900594 EP 19830900594 EP 83900594 A EP83900594 A EP 83900594A EP 0101456 A1 EP0101456 A1 EP 0101456A1
Authority
EP
European Patent Office
Prior art keywords
fluid
machine tool
frame
tool
base portion
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19830900594
Other languages
German (de)
English (en)
Inventor
Ernst J. Hunkeler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gleason Works
Original Assignee
Gleason Works
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 Gleason Works filed Critical Gleason Works
Publication of EP0101456A1 publication Critical patent/EP0101456A1/fr
Withdrawn legal-status Critical Current

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
    • 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
    • B23Q11/10—Arrangements for cooling or lubricating tools or work

Definitions

  • This invention relates to the construction of machine ⁇ . tools and, more particularly, to an improved system for
  • the invention herein greatly reduces such temperature distortion in a much simpler, more economical, and novel manner.
  • refrigerants are commonly used in the prior art to lower the temperature of machine hot spots, and such cooling measures may still be used with the subject invention.
  • the novel system disclosed herein spreads the heat generated by the machine drive and the cutting process evenly throughout the entire machine by heat exchange and by raising the temperature of the cooler and more remote portions of the frame.
  • OMPI It is known in the prior art to use portions of the machine frame as reservoirs for the lubricating and cutting fluids.
  • the invention herein utilizes such in-frame fluid storage, but expands this known feature and makes it part of a novel system for distributing at least one of these fluids throughout the interior walls of the machine frame in a manner which tends to keep the entire frame, including its column portions, at approximately the same temperature.
  • the cutting fluid which cools and lubricates the tool and workpiece and carries away the chips and heat created by the cutting process, is circulated .from a reservoir formed throughout the central section of the base of the machine frame, while the fluid which lubricates the drive mechanism, in quantities considerably larger than that normally required for such lubrication, is circulated from a second reservoir formed around the periphery of the same base portion of the frame.
  • These two reservoirs are contiguous to each other and, preferably, include ribs or fins which facilitate heat exchange between the two separate volumes of fluid.
  • the lubricating fluid is delivered through conventional and well-known means to the various bearings, shafts, gears, etc. of the machine drive mechanism. In addition, however, a much larger quantity of this same lubricating fluid is also delivered. through spray pipes and troughs to substantially all of the interior walls of the base and column portions of the machine frame.
  • Fig. 1 is a side view, in schematic cross-section, of a machine tool having a frame modified according to the invention herein; —
  • Fig. 2 is an end view, in schematic cross-section, of the machine tool shown in Fig. 1, the cross-section being taken generally along the line 2-2 in Fig. 1;
  • Fig. 3 is an enlarged plan view of the machine in Fig. 1, shown in schematic cross-section taken general! along the line 3-3 in Fig. 1;
  • Fig. 4 is an enlarged schematic view in partial cross-section of one of the pressure spray units which
  • Fig. 5 is an enlarged schematic representation, in partial cross-section, of one of the trough arrangements which provide a flow of fluid to the interior walls of the base portion of the machine frame.
  • the frame of a gear hobbing machine is shown in three very schematic, partial cross-section views in
  • Figs. 1, 2 and 3 which are, respectively a side elevation, an end elevation and a plan view.
  • the frame comprises a base portion .10, a workholding column 12 with appropriate means for holding a gear blank workpiece 14, and a tool-holding column 16 carrying a hob tool 18.
  • base portion 10 includes a central reservoir 20 surrounded by two peripheral reservoirs 22 and 24 interconnected by a pipe 26.
  • Central reservoir 20 holds cutting fluid which overflows a dam 28 into a sump 30.
  • a pump 32. delivers the cutting fluid from sump 30 through pipe 34 to the interface between hob tool 18 and workpiece 14, the fluid being used to cool and lubricate the cut as well as to flush away chips produced during the cutting process.
  • the cutting fluid absorbs heat from the cutting process and, carrying the flushed chips, falls into central reservoir 20 where an auger 36 moves the chips to the end of reservoir 20 where they are picked up by a magnetic chip conveyor 37 in a well known manner.
  • the peripheral reservoirs 22 and 24 are filled with a lubricating fluid which is delivered to the various components of the machine drive mechanism.
  • the machine's operating components are merely indicated schematically in Figure 1, and the lubricating fluid is distributed to these components by conventional means (not shown) well known in the art.
  • reservoirs 22 and 24 contain considerably more lubricating fluid than would normally be necessary for conventional lubricating purposes, and this excess fluid is delivered under pressure by pump 38 through pipes 40 and 42 to the upper parts of frame columns 12 and 16 where it is directed by pressure- spray means 44 and by deflector/trough means 46 to flow over the interior of all of the wall elements of columns 12 and 16.
  • the lubricating fluid then passes through the bottom of the column structures and is directed by further deflectors, channels and troughs, including conduits 47, to flow down the interior of substantially all of the wall elements of base 10.
  • One of the pressure spray means 44 is illustrated in enlarged schematic form in Figure 4 in which small arrows show the direction of the lubricating fluid as it exits from a delivery pipe 48 through orifices 50 to shower against the interior walls of a section of column 16.
  • Figure 5 illustrates in enlarged schematic form a preferred trough means comprising a plurality of troughs 52 and openings 54, as they might appear when positioned at the top of an interior section of base 10. Fluid is directed from the bottom of one of the column portions, e.g., through a conduit 47, into the troughs 52 so. that the lubricating fluid passes through the openings 54 to flow down the interior wall elements of the frame.
  • a plurality of wall elements 56 extend through both central reservoir 20 and peripheral reservoirs 22 and 24, and some of the wall elements 56 may, if desired, be fabricated from aluminum or some other highly conductive material, being appropriately redesigned as fins for exchanging heat between the two fluids.
  • the cutting fluid is maintained at the level generally indicated by dotted line 58, and the lubricating fluid in peripheral reservoirs 22 and 24 is preferably maintained at a similar level, indicated by dotted line 60.
  • This heat exchange arrangement tends to heat lubricating fluid in reservoirs 22 and 24 to the more elevated temperatures of the cutting fluid in reservoir 20. Distribution of this heated fluid, in the manner described above, raises the temperature of the interior of the more remote portions of columns 12 and 16 and base 10 of the frame.
  • this fluid delivery system maintains the entire frame at substantially the same temperature.
  • the invention herein is not directed at the lowering of these temperatures in the manner well known in the prior art.
  • the isothermal system disclosed herein is directed to raising the temperature of the cooler areas of the frame to reduce differences in temperature between those otherwise cooler areas and the portions of the frame which are normally heated by the operation of the machine's drive mechanism and by the cutting process itself. That is, the invention does not try to maintain any particular level of temperature
  • OMPI in the fluids or in the active components of the machine, but rather is intended to spread the heat of operation evenly throughout the frame to reduce the distortions which otherwise result from uneven expansion and contraction of various critical portions of the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machine Tool Units (AREA)

Abstract

Un bâti de machine-outil ayant une base (10) et des colonnes (12), (16) montées sur la base comporte un système (44), (46) d'alimentation en fluide destiné à faire couler du fluide sur les éléments des parois intérieures qui forment la base et les colonnes. On obtient ainsi un échange de chaleur entre les éléments des parois et le fluide, ce qui permet de maintenir des conditions isothermiques dans l'ensemble du bâti.
EP19830900594 1982-02-05 1983-01-10 Systeme isothermique pour machine-outil Withdrawn EP0101456A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US34600082A 1982-02-05 1982-02-05
US346000 1982-02-05

Publications (1)

Publication Number Publication Date
EP0101456A1 true EP0101456A1 (fr) 1984-02-29

Family

ID=23357505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19830900594 Withdrawn EP0101456A1 (fr) 1982-02-05 1983-01-10 Systeme isothermique pour machine-outil

Country Status (2)

Country Link
EP (1) EP0101456A1 (fr)
WO (1) WO1983002740A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3579748D1 (de) * 1984-06-04 1990-10-25 Mitsubishi Electric Corp Entladungsbearbeitungsgeraete.
GB8808281D0 (en) * 1988-04-08 1988-05-11 Lk Tool Co Ltd Support structure
DE3828305A1 (de) * 1988-08-20 1990-02-22 Salje Ernst Verfahren zur thermischen beeinflussung von werkzeugmachinen, vorrichtung zur durchfuehrung des verfahrens und bauteil
JP2002239857A (ja) * 2001-02-13 2002-08-28 Makino Milling Mach Co Ltd 熱変形抑制機能を備えた工作機械

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2271677A (en) * 1937-11-18 1942-02-03 Lees Bradner Co Fluid circulating system
DE1098325B (de) * 1956-02-21 1961-01-26 Fritz Petzoldt Mehrspindeldrehautomat
FR1223607A (fr) * 1959-01-31 1960-06-17 Dispositif destiné à empêcher des dilatations locales dans des organes de machines dans lesquels tournent des broches porte-outils de grande capacité
US3587462A (en) * 1968-06-14 1971-06-28 Willy Hirsch Temperature-regulation for flat offset presses
US4375785A (en) * 1981-09-08 1983-03-08 The Minster Machine Company Method and apparatus for achieving thermal stability in a press

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8302740A1 *

Also Published As

Publication number Publication date
WO1983002740A1 (fr) 1983-08-18

Similar Documents

Publication Publication Date Title
EP0445309A1 (fr) Echangeur de chaleur utilisant un fluide pour un composant électronique
RU2053474C1 (ru) Устройство для охлаждения вращающейся обжиговой печи
US20140069609A1 (en) Air-temperature regulation device for a machine tool
EP0101456A1 (fr) Systeme isothermique pour machine-outil
US6367304B1 (en) Forming machine with cooling apparatus
US3025685A (en) Means for wetting surfaces
US5873253A (en) Method and apparatus for cooling parts that are being worked
JP2003145373A (ja) 工作機械の熱変形防止構造
US20090084931A1 (en) Enabling bare die liquid cooling for the bare die and hot spots
EP0136458B1 (fr) Récipient pour refroidir de la marchandise à garder au froid
JPS6146256B2 (fr)
CN1251164A (zh) 吸收式制冷装置吸收器
CN114845527B (zh) 相变冷却型机箱及其系统
JPH10249660A (ja) 冷却機能付きコラムを有する工作機械
JPH0639704A (ja) ポリッシング用加工定盤
US4474029A (en) Hot gas defrost pan and system
US3652250A (en) Apparatus for the treatment or production of flat glass floating on a liquid
JPH0525805Y2 (fr)
CN213858777U (zh) 雕刻机的自动冷却装置
CN112828673B (zh) 一种数控车床的冷却润滑系统
CN220087749U (zh) 有多个管路分区的散热板及散热器
CN217031714U (zh) 制冷台
CN219520504U (zh) 重型数控卧车用静压承托装置
CN113579845B (zh) 一种具有自动冷却功能的数控机床
Jen et al. Thermal performance of heat pipe drill: experimental study

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB LI NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19840110

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HUNKELER, ERNST J.