WO1993000200A1 - Machine-outil - Google Patents

Machine-outil Download PDF

Info

Publication number
WO1993000200A1
WO1993000200A1 PCT/JP1992/000788 JP9200788W WO9300200A1 WO 1993000200 A1 WO1993000200 A1 WO 1993000200A1 JP 9200788 W JP9200788 W JP 9200788W WO 9300200 A1 WO9300200 A1 WO 9300200A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle head
spindle
machine tool
passage
cooling medium
Prior art date
Application number
PCT/JP1992/000788
Other languages
English (en)
Japanese (ja)
Inventor
Koichiro Kitamura
Original Assignee
Kitamura Machinery 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 Kitamura Machinery Co., Ltd. filed Critical Kitamura Machinery Co., Ltd.
Publication of WO1993000200A1 publication Critical patent/WO1993000200A1/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
    • 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
    • B23Q11/127—Arrangements for cooling or lubricating parts of the machine for cooling only for cooling motors or spindles

Definitions

  • the present invention relates to a machine tool having a spindle head.
  • the present inventor has proposed in Japanese Patent Application No. 63-13608 a working machine having a configuration in which a spindle head is cooled by a cooling medium.
  • This machine tool has a cooling medium space that surrounds the entire wall surface of the spindle head.
  • the medium space has a thin and wide shape surrounding the entire spindle head, when the cooling medium flows through the space, the flow tends to be stagnant or uneven, which has led to uneven cooling.
  • the present invention is intended to improve this machine tool.
  • An object of the present invention is to provide a machine tool capable of suppressing a thermal displacement of a spindle and a spindle head and improving machining accuracy. I have.
  • the gist of the present invention is characterized in that, in a machine tool having a spindle head, an elongated passage is provided in a zigzag pattern on a wall surface of the spindle head, and a cooling medium is flown along the passage to cool the spindle head. Machine tool.
  • FIG. 1 is a side view showing an embodiment of a machine tool according to the present invention.
  • Fig. 2 is a partially cutaway side view showing the spindle head of Fig. 1.
  • Fig. 3 is a sectional view taken along the line A-A in Fig. 2.
  • the machine tool has a bed 1, a table 2, a column 3, and a spindle head 4.
  • Table 2 is set to bed 1 and can be moved by driving motor 5 in the X direction.
  • Column 3 can be moved in the direction of arrow Y 1 or Y 2 by driving motor 6.
  • the spindle head 4 can be moved up and down in the direction of the arrow Z1 or Z2 by driving the motor 7 along the vertical direction of the column 3.
  • the spindle head 4 includes a spindle 12, a motor 11, and the like.
  • the spindle head 4 rotatably supports the spindle 12.
  • Gear 13 of spindle 12 meshes with gear 14.
  • Gears 14 and 15 are fixed to axis 16.
  • Gear 15 meshes with gear 17.
  • Gear 17 is fixed to output shaft 18 of motor 11. This allows When the output shaft 18 of the motor 11 rotates, the spindle 12 can rotate through the gears 17, 15, 15, 14 and 13.
  • a tool holder 10 is detachably attached to a lower end of the spindle 12.
  • a tool 19 is set in the tool holder 110.
  • An elongated passage 30 is formed in a zigzag shape on the wall surface of the spindle head 4.
  • the passage 30 is formed by the inner wall 21 and the covers 31, 32, 33, 34, as shown in FIGS.
  • the passage 30 is disposed so as to bend many times in a zigzag manner to cover the entire side surface of the spindle head 4.
  • the passage 30 has inlet and outlet forces. These entrances are connected to lines 26 and 27, respectively.
  • the inner wall 21 constitutes a gear box 23.
  • the cooling oil 22 is supplied from the cooling oil storage section 25 through the line 26 as shown in FIG. 1, passes between the outer wall 20 and the inner wall 21, and is stored through the line 27. We are returning to 25.
  • Temperature sensors are provided at various positions on the spindle head 4 so that the temperature and flow rate of the cooling medium are adjusted according to the detected temperature.
  • the present invention is not limited to the above-described embodiment.
  • a cooling gas for example, a nitrogen gas, may be used instead of the cooling oil.
  • the working machine in the illustrated example is a vertical machining center, it goes without saying that the present invention can be applied to other types of working machines. Furthermore, it can be applied to a woodworking machine that rotates at high speed.
  • the shape of the passage is not limited to the shape in the illustrated example.
  • the flow path may be formed in a spiral shape.
  • the width of the passage may not be uniform.
  • the passage can be provided not only on the side surface of the spindle head, but also on the upper and lower surfaces where it can be installed.
  • the spindle head 4 can be cooled by flowing the cooling medium 22 along 30.
  • the cooling efficiency is high, and there is no stagnation or uneven flow. Therefore, the spindle head 4 can be effectively cooled without unevenness.
  • the thermal displacement of the spindle head and spindle is Processing can be performed in degrees. Therefore, the accuracy of the product can be improved.
  • the entire head of the spindle can be cooled efficiently without unevenness, so that machining accuracy can be further improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Machine Tool Units (AREA)
  • Turning (AREA)

Abstract

Machine-outil comprenant une tête de broche caractérisée en ce qu'un chemin allongé (30) est formé sur une surface de la paroi de la tête de broche (4) en forme de zigzag, et en ce que l'on fait s'écouler un milieu de refroidissement (22) dans le chemin (30) afin de refroidir ladite tête de broche (4).
PCT/JP1992/000788 1991-06-28 1992-06-19 Machine-outil WO1993000200A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18385191A JPH058147A (ja) 1991-06-28 1991-06-28 工作機械
JP3/183851 1991-06-28

Publications (1)

Publication Number Publication Date
WO1993000200A1 true WO1993000200A1 (fr) 1993-01-07

Family

ID=16142944

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1992/000788 WO1993000200A1 (fr) 1991-06-28 1992-06-19 Machine-outil

Country Status (2)

Country Link
JP (1) JPH058147A (fr)
WO (1) WO1993000200A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3769911A4 (fr) * 2018-03-20 2021-12-22 Makino Milling Machine Co., Ltd. Dispositif à broche principale d'une machine-outil

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5483004B2 (ja) * 2010-01-22 2014-05-07 Ｄｍｇ森精機株式会社 工作機械
JP2013169641A (ja) * 2012-02-23 2013-09-02 Toshiba Mach Co Ltd 精密工作機械
JP5964159B2 (ja) * 2012-07-05 2016-08-03 東芝機械株式会社 精密工作機械
JP5873526B2 (ja) * 2014-05-07 2016-03-01 高松機械工業株式会社 主軸台座冷却槽

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6278247U (fr) * 1985-10-31 1987-05-19
JPS6342981Y2 (fr) * 1980-08-26 1988-11-10
JPH0187845U (fr) * 1987-12-02 1989-06-09
JPH01193142A (ja) * 1988-01-26 1989-08-03 Kitamura Mach Co Ltd 工作機械
JPH01143338U (fr) * 1988-03-25 1989-10-02

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6342981Y2 (fr) * 1980-08-26 1988-11-10
JPS6278247U (fr) * 1985-10-31 1987-05-19
JPH0187845U (fr) * 1987-12-02 1989-06-09
JPH01193142A (ja) * 1988-01-26 1989-08-03 Kitamura Mach Co Ltd 工作機械
JPH01143338U (fr) * 1988-03-25 1989-10-02

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3769911A4 (fr) * 2018-03-20 2021-12-22 Makino Milling Machine Co., Ltd. Dispositif à broche principale d'une machine-outil

Also Published As

Publication number Publication date
JPH058147A (ja) 1993-01-19

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