+

WO1999047301A1 - Bloc de guidage lineaire et procede de traitement de surface de celui-ci - Google Patents

Bloc de guidage lineaire et procede de traitement de surface de celui-ci Download PDF

Info

Publication number
WO1999047301A1
WO1999047301A1 PCT/JP1998/001138 JP9801138W WO9947301A1 WO 1999047301 A1 WO1999047301 A1 WO 1999047301A1 JP 9801138 W JP9801138 W JP 9801138W WO 9947301 A1 WO9947301 A1 WO 9947301A1
Authority
WO
WIPO (PCT)
Prior art keywords
linear guide
guide block
hard coating
discharge
electrode
Prior art date
Application number
PCT/JP1998/001138
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyuki Ohguro
Akihiro Goto
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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 Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP1998/001138 priority Critical patent/WO1999047301A1/fr
Publication of WO1999047301A1 publication Critical patent/WO1999047301A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0602—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/06—Ball or roller bearings in which the rolling bodies circulate partly without carrying load
    • F16C29/0633—Ball or roller bearings in which the rolling bodies circulate partly without carrying load with a bearing body defining a U-shaped carriage, i.e. surrounding a guide rail or track on three sides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02—Parts of sliding-contact bearings
    • F16C33/04—Brasses; Bushes; Linings
    • F16C33/06—Sliding surface mainly made of metal
    • F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing

Definitions

  • the present invention relates to a linear guide block and a surface treatment method for the linear guide block, and more particularly, to a linear guide rail used as a guide member for a linear motion portion such as a movable table and a slider in a machine tool or an industrial machine.
  • the present invention relates to a linear guide block having a built-in linear motion ball bearing and a surface treatment method for the linear guide block.
  • the guide mechanism of the linear motion part in machine tools and industrial machines is a linear guide rail that is fixed to the machine frame or bed, and a linear guide rail that is provided on the moving side such as a movable table and a slider and moves linearly to the linear guide rail. It is constituted by a linear guide block that is engaged (possible to run).
  • FIG. 2 shows a specific example of the guide mechanism of the linear motion unit.
  • the linear guide block 52 with the block body 50 and the end plates 51 at the front and rear ends incorporates a ball motion linear motion ball bearing 53, and the linear guide rail 60 has a linear motion ball bearing 53.
  • the rolling surface 61 of the ball 54 is provided.
  • the linear guide block 52 linearly moves along the linear guide rail 60 while rolling the ball 54 along the rolling surface 61.
  • the block body 50 of the linear guide block 52 and the end plate 51 are formed by die-casting aluminum, etc., and the block body 50 and the end plate 51 have a loop-shaped ball groove for circulation of the ball 54. 55, 56 are formed.
  • the ball grooves 55, 56 are polished with high precision and are usually used as they are.
  • the surface of the ball groove 55 of the rate 51 is coated with a hard surface coating by vapor deposition by PVD (physical vapor deposition), CVD (chemical vapor deposition) or the like.
  • the coating film formed by these treatments has poor adhesion to the base material, so that the coating film is separated during use and dust is generated.
  • the generation of the dust causes damage to the ball groove and the ball, shortens the life of the linear guide, and has a problem in use in an environment where dust should not be generated such as a clean room.
  • the present invention has been made to solve the above-described problems, and has a required high-quality surface treatment layer (surface coating) in a ball groove without a complicated processing step or special equipment. It is an object of the present invention to provide a linear guide block and a surface treatment method for the linear guide block. Disclosure of the invention
  • the present invention provides a linear guide block with a built-in ball bearing for a ball bearing in which a discharge electrode electrode consumable molten material or a reactant thereof is deposited on a ball groove in which a ball circulates due to discharge energy generated by electric discharge machining.
  • a linear guide block in which an electrode consumable molten material or a hard coating formed by the reaction thereof is formed on the rail surface.
  • the ball groove is covered with a hard coating that has excellent adhesion with the electrode consumable molten material or its reactant only by discharge surface treatment under atmospheric pressure without exposing the material to a high temperature atmosphere. ing.
  • the hard coating is provided on an end plate of a linear guide block.
  • a linear guide block formed in the formed u-shaped ball groove can be provided.
  • the linear guide block is coated with a hard coating having excellent adhesion, especially the end-shaped U-shaped ball groove of the end plate, which is subjected to a load, among the pole grooves, and the life can be efficiently extended.
  • the present invention can provide a linear guide block in which the hard coating is a hard coating made of carbides of Ti, Zr, V, Nb, and Ta.
  • the linear guide block does not expose the material to a high-temperature atmosphere, but only discharge surface treatment under atmospheric pressure, and the ball groove is made to adhere to Ti, Zr, V, Nb, and Ta by carbide. It is covered with an excellent hard coating to extend its life.
  • the present invention also relates to a surface treatment method for a linear guide block with a built-in linear motion ball bearing, wherein the material of the linear guide block and the discharge electrode are opposed to each other with a predetermined discharge gap in a machining fluid.
  • a discharge is generated between the electrode and the discharge electrode, and the molten material depleted by the electrode or its reactant generated by the discharge energy is deposited on the ball groove of the block material, and the molten material depleted by the electrode or the like is deposited in the ball groove.
  • a surface treatment method for a linear guide block that forms a hard coating with a reactant can be provided.
  • the linear guide block in which the ball groove is covered with a hard coating excellent in adhesion with the electrode consumable molten material or its reactant only by the discharge surface treatment under atmospheric pressure is used. can get.
  • the present invention can provide a surface treatment method for a linear guide block in which the hard coating is formed in a U-shaped ball groove formed in an end plate of the linear guide block.
  • a linear guide block is obtained in which the U-shaped ball groove of the end plate, which is particularly loaded, is coated with a hard coating having excellent adhesion among the ball grooves.
  • the present invention provides a method for forming a discharge electrode comprising a hard metal of Ti, Zr, V, Nb, and Ta.
  • Hard coatings are formed by using a compact electrode made by compressing and molding these hydride powders, or a metal electrode made of these metals, and using an electric discharge machining oil containing HC as a machining fluid
  • the surface treatment method for the linear guide block can be provided.
  • FIG. 1 is an explanatory view showing a surface treatment apparatus for performing a surface treatment method for a linear guide block according to the present invention
  • FIG. 2 is a perspective view showing a specific example of a guide mechanism of a linear motion section.
  • FIG. 1 shows a surface treatment apparatus for carrying out a surface treatment method for a linear guide block according to the present invention.
  • the end plate material 51 w of the linear guide block is formed by aluminum die casting or the like into a shape including the ball groove 55 as in the conventional case, and is provided between the discharge electrode 10 and the end plate material 51 w.
  • a voltage is applied by the electric discharge machining power supply device 20 while a machining fluid is sprayed from the nozzle 30.
  • the power supply device for electric discharge machining 20 controls the power supply 21, the switching element 22 for switching the voltage and current applied to the discharge electrode 10 and the end plate material 51 w, and the on / off of the switching element 22. And a resistor 24.
  • a voltage is applied between the discharge electrode 10 and the end plate material 51 w by a power supply device for electric discharge machining 20, and in the machining fluid from the nozzle 30, the discharge electrode 1 0 and the end plate material 5 lw oppose each other with a predetermined discharge gap of 10 11 to several 10 m, so that a pulse-like discharge occurs between the discharge electrode 10 and the end plate material 5 lw. Occurs.
  • the discharge energy generated by this discharge generates a snout-like electrode consumable molten material or a reactant thereof, which adheres and accumulates in the ball groove 55 of the end plate material 5 lw and melts on the surface of the ball groove 55.
  • a hard film c is formed by the substance or its reactant.
  • discharge surface treatment as described above is performed in the same manner as the surface treatment method described in Japanese Patent Application Laid-Open No. Hei 5-520684, Japanese Patent Laid-Open No. 9-192937. May be done.
  • the coating c is formed in a uniform manner on the entire U-shaped ball groove 55.
  • the coating c By forming the coating c to be slightly thicker and performing polishing (grinding) after forming the coating, it is possible to finish the dimensions of the ball grooves 55 with high precision.
  • the discharge electrode 10 is made of a powder of a hard metal such as Ti, Zr, V, Nb, Ta or the like, a compacted electrode obtained by compression-molding a powder of these hydrides, or a powder of these metals.
  • a hard metal such as Ti, Zr, V, Nb, Ta or the like
  • a compacted electrode obtained by compression-molding a powder of these hydrides, or a powder of these metals a powder of these metals.
  • the use of electric discharge machining oil containing HC as the machining fluid allows the electrode material consumed by electric discharge to react with carbon C, a component in the machining fluid, to make the TiC
  • the discharge electrode 10 may be made of a metal carbide such as TiC. In this case, water may be blown out from the nozzle 30 and discharge may be performed in water. Industrial applicability
  • the hard coating is formed by the discharge surface treatment, particularly in the ball groove of the end plate, the guide of the linear motion part in various machining machines and industrial machines is provided. It can be used as a member.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

L'invention porte sur un matériau résiduaire fondu d'une électrode à décharge ou sur son produit de réaction, ce matériau étant déposé et adhérant dans la rainure d'une bille d'un bloc de guidage linéaire comprenant un palier à billes à déplacement linéaire, ce déplacement s'effectuant par décharge d'énergie générée par usinage à décharge électrique. Ce procédé permet de transformer le matériau résiduaire fondu en un film de revêtement dur et de former son produit de réaction sur la rainure de la bille.
PCT/JP1998/001138 1998-03-18 1998-03-18 Bloc de guidage lineaire et procede de traitement de surface de celui-ci WO1999047301A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/001138 WO1999047301A1 (fr) 1998-03-18 1998-03-18 Bloc de guidage lineaire et procede de traitement de surface de celui-ci

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1998/001138 WO1999047301A1 (fr) 1998-03-18 1998-03-18 Bloc de guidage lineaire et procede de traitement de surface de celui-ci

Publications (1)

Publication Number Publication Date
WO1999047301A1 true WO1999047301A1 (fr) 1999-09-23

Family

ID=14207810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1998/001138 WO1999047301A1 (fr) 1998-03-18 1998-03-18 Bloc de guidage lineaire et procede de traitement de surface de celui-ci

Country Status (1)

Country Link
WO (1) WO1999047301A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305521A (ja) * 1992-04-08 1993-11-19 Ishifuku Metal Ind Co Ltd 白金類金属被覆材及びその製造方法
JPH0919829A (ja) * 1995-07-04 1997-01-21 Mitsubishi Electric Corp 放電加工による表面処理方法および装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305521A (ja) * 1992-04-08 1993-11-19 Ishifuku Metal Ind Co Ltd 白金類金属被覆材及びその製造方法
JPH0919829A (ja) * 1995-07-04 1997-01-21 Mitsubishi Electric Corp 放電加工による表面処理方法および装置

Similar Documents

Publication Publication Date Title
JP3271844B2 (ja) 液中放電による金属材料の表面処理方法
HUT73477A (en) Method for treating a metal surface
WO1999058744A1 (fr) Electrode pour traitement de surface par decharge, procede de fabrication de ladite electrode et procede et dispositif de traitement de surface par decharge
WO2004011696A1 (fr) Electrode destinee a un traitement de surface par decharge electrique, procede de traitement de surface par decharge electrique et appareil de traitement de surface par decharge electrique
WO1999018258A1 (fr) Baguette d'electrode pour depot par etincelles et procede de production, et procede de recouvrement par une couche contenant un superabrasif
JP2010099735A (ja) 塑性加工用被覆金型
US20020000369A1 (en) Method and device for discharging surface treatment
JP3627784B2 (ja) 放電表面処理方法
JP3595263B2 (ja) 放電表面処理方法およびその方法を実施する装置並びに電極
WO1999047301A1 (fr) Bloc de guidage lineaire et procede de traitement de surface de celui-ci
EP0688624A1 (fr) Méthode d'usinage par décharge électrique pour matériaux isolants recouverts d'une couche électroconductrice
JP5547864B2 (ja) 放電表面処理方法及び装置
WO2004111302A1 (fr) Dispositif et procede de revetement par decharge electrique
JP3627088B2 (ja) 放電表面処理方法およびその方法により形成される被処理体
JP2569348B2 (ja) 金型の再生方法
WO2000029160A1 (fr) Glissiere lineaire et procede de traitement de la surface d'une glissiere lineaire
WO2006098210A1 (fr) Manteau de protection et structure metallique
JPH10225824A (ja) 放電表面処理方法及びその処理装置
JP2000266055A (ja) 耐蝕耐摩耗性摺動部材およびその製造方法
JP4333037B2 (ja) 放電表面処理方法及び装置並びに放電表面処理用電極
JP2835450B2 (ja) プラスチック成形用黒鉛型
JP2009196251A (ja) ハニカム構造体成形用金型の再生方法
JP2001219319A (ja) 摩耗製品または摩耗部品の再創生法
WO1997019201A1 (fr) Procede d'obtention d'articles composites de metal-ceramique de formes complexes
JP2005008942A (ja) 表面処理方法

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CH CN DE JP KR US

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
NENP Non-entry into the national phase

Ref country code: KR

REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 2000536520

Format of ref document f/p: F

点击 这是indexloc提供的php浏览器服务，不要输入任何密码和下载