JPH08219153A - Rectilinear motion guide device and forming method therefor - Google Patents

Rectilinear motion guide device and forming method therefor

Info

Publication number
JPH08219153A
JPH08219153A JP4482295A JP4482295A JPH08219153A JP H08219153 A JPH08219153 A JP H08219153A JP 4482295 A JP4482295 A JP 4482295A JP 4482295 A JP4482295 A JP 4482295A JP H08219153 A JPH08219153 A JP H08219153A
Authority
JP
Japan
Prior art keywords
ball
ball rolling
main body
rolling groove
track
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.)
Granted
Application number
JP4482295A
Other languages
Japanese (ja)
Other versions
JP3550208B2 (en
Inventor
Takeki Shirai
武樹 白井
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.)
THK Co Ltd
Original Assignee
THK 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 THK Co Ltd filed Critical THK Co Ltd
Priority to JP04482295A priority Critical patent/JP3550208B2/en
Publication of JPH08219153A publication Critical patent/JPH08219153A/en
Application granted granted Critical
Publication of JP3550208B2 publication Critical patent/JP3550208B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • F16C29/0633—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
    • F16C29/0635—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 whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end
    • F16C29/0638—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 whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls
    • F16C29/0642—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 whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls
    • F16C29/0647—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 whereby the return paths are provided as bores in a main body of the U-shaped carriage, e.g. the main body of the U-shaped carriage is a single part with end caps provided at each end with balls with four rows of balls with load directions in X-arrangement
    • 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
    • F16C29/0604—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the load bearing section
    • 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
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Rolling Contact Bearings (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To reduce a weight, facilitate working and assembly, and lubricate a ball smoothly by integratedly forming a block main body by inserting formation to be formed by inserting a locus member on which the ball transferring groove of a load range is formed in a mold. CONSTITUTION: This device is formed by inserting a locus member 8 on which a ball transferring groove 5 is formed in a mold so as to reduce a weight sharply comparing with a moving block formed by cut-working a prior metal block. Ball maintaining parts 91a, 91b and a no-load ball passage 93 are integratedly formed with each other along the ball transferring groove 5 so as to eliminate necessity of assembly. A direction converting passage inner circumferential guide part 92 is integratedly formed so as to convert a direction from a ball from a load range to non load range. As a result, necessity of assembly is eliminated, and also a step difference between the direction converting passage inner circumferential part 92 and the load ball transferring groove 5, and between the direction conversion passage inner circumferential part 92 and the no-load ball passage 93 is eliminated, and the ball 2 is circulated smoothly.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は工作機械の直線案内部等
に用いられる直線運動案内装置及びその成形方法に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear motion guide device used for a linear guide part of a machine tool and a forming method thereof.

【０００２】[0002]

【従来の技術】従来のこの種の直線運動用案内装置は、
軌道レールに多数のボールを介して移動ブロックが移動
自在に設けられている。この移動ブロックは、軌道レー
ルに設けられたボール転走溝に対向して設けられる負荷
域のボール転走溝が設けられたブロック本体と、該ブロ
ック本体の両端に取り付けられる側蓋を、を備えた構成
となっている。ボールは、負荷域のボール転走溝，側蓋
に設けられた方向転換路及びボール逃げ通路を無限循環
するようになっており、ボール転走溝の側縁にはボール
リテーナが設けられている。2. Description of the Related Art A conventional linear motion guide device of this type is
A moving block is movably provided on the track rail via a large number of balls. This moving block is provided with a block main body provided with a ball rolling groove in a load region provided opposite to a ball rolling groove provided on the track rail, and side lids attached to both ends of the block main body. It has been configured. The ball circulates infinitely through the ball rolling groove in the load area, the direction changing path provided in the side lid, and the ball escape path, and the ball retainer is provided at the side edge of the ball rolling groove. .

【０００３】[0003]

【発明が解決しようとする課題】しかしながら上記した
従来技術の場合には、移動ブロックとして金属ブロック
の切削加工品を使用しているために、移動ブロックの重
量が大きくなるという問題があった。However, in the case of the above-mentioned prior art, there is a problem that the moving block becomes heavy because the cutting work of the metal block is used as the moving block.

【０００４】また、金属ブロックにボール逃げ通路を穴
明け加工するために、加工工数が増大しコスト高の要因
となっていた。Further, since the ball escape passages are drilled in the metal block, the number of processing steps is increased, which causes a high cost.

【０００５】さらに方向転換路内周を構成するＲピース
をブロック本体端面に組み付ける際には、ボール転走溝
とＲピースとの間に段差がでないように組立てる必要が
ある。Further, when assembling the R piece constituting the inner circumference of the direction changing path to the end surface of the block body, it is necessary to assemble so that there is no step between the ball rolling groove and the R piece.

【０００６】また、ボール転走溝側縁へボールリテーナ
を組立る場合には、走行時にボールがボールリテーナに
干渉しないように組み立てる必要があり、組立が面倒で
あった。このような組立工程が多いこともコスト増大を
招く要因である。Further, when assembling the ball retainer on the side edge of the ball rolling groove, it is necessary to assemble the ball retainer so that the balls do not interfere with the ball retainer during traveling, which is troublesome to assemble. The number of such assembling steps is also a factor that causes an increase in cost.

【０００７】そこで、従来から、高剛性を必要としない
ボールリテーナ、側蓋及びボール逃げ通路については樹
脂成形品として低コスト化が図られてきた。Therefore, conventionally, the cost of the ball retainer, the side cover, and the ball escape passage, which do not require high rigidity, has been reduced as a resin molded product.

【０００８】しかし、従来の各樹脂成形品はブロック本
体とは別体成形品であり、それぞれ別途成形した後に、
組立工程が必要であった。However, each conventional resin molded product is a molded product separate from the block body, and after molding separately,
An assembly process was necessary.

【０００９】そこで、ボールリテーナ等とブロック本体
を一体成形することにより組立工程を削減すること考え
られる。Therefore, it is conceivable to reduce the assembly process by integrally molding the ball retainer and the block main body.

【００１０】このような一体成形技術としては、たとえ
ばＵＳＰ４，１２８，２７９号に示されるような直線運
動ボールベアリングが知られている。As such an integral molding technique, for example, a linear motion ball bearing as shown in USP 4,128,279 is known.

【００１１】この直線運動ボールベアリングは、図１４
に示すように、一部が切り欠かれた開断面形状の外筒１
０１と、外筒１０１内に挿入される軸１０５と、から構
成されている。This linear motion ball bearing is shown in FIG.
As shown in FIG. 1, an outer cylinder 1 having an open cross-section with a part cut away
01 and a shaft 105 inserted into the outer cylinder 101.

【００１２】この外筒１０１内周と軸１０５外周の間
に、軸方向に配列さらた多数のボール１０４が介装さ
れ、ボール１０４を介して、外筒１０１が軸１０５に沿
って直線運動するようになっている。ボール１０４は、
外筒１０１の円周方向に複数列設けられ、各ボール列
は、外筒１０１両端の方向転換路１０８および外筒１０
１外周側に設けられた複数の無負荷ボール通路１１０を
通じて循環するようになっている。外筒１０１と軸１０
５の間に介装される負荷域のボール１０４は、ボール列
の両側に軸方向に沿って延びるボール保持部１０６によ
って保持されている。A large number of balls 104 arranged in the axial direction are interposed between the inner circumference of the outer cylinder 101 and the outer circumference of the shaft 105, and the outer cylinder 101 linearly moves along the shaft 105 via the balls 104. It is like this. Ball 104
A plurality of rows are provided in the circumferential direction of the outer cylinder 101.
It circulates through a plurality of unloaded ball passages 110 provided on the outer peripheral side. Outer cylinder 101 and shaft 10
The balls 104 in the load range interposed between the balls 5 are held by ball holding portions 106 extending in the axial direction on both sides of the row of balls.

【００１３】そして、前記ボール保持部１０６、方向転
換路１０８の内周部１０８ａ及び無負荷ボール通路１１
０が、インサート成形にて、外筒１０１と一体成形され
ていた。The ball holding portion 106, the inner peripheral portion 108a of the direction changing passage 108 and the unloaded ball passage 11 are provided.
No. 0 was integrally formed with the outer cylinder 101 by insert molding.

【００１４】しかしながら、上記した従来の直線運動ボ
ールベアリングの場合には、インサート成形する際に
は、図１４(ｃ)に示すように、たとえば、外筒１０１の
外周を第１の金型１１１に、外筒１０１の内周を第２の
金型１１２に密着させて、ボール保持部１０６及び無負
荷ボール通路１１０成形用のキャビティ１０６ａ，１１
０ａを形成することになるが、外筒１０１の内外周を第
１，第２の金型１１１，１１２に正確に密接させること
が困難であり、接触面間に隙間ができてバリが発生する
という問題があった。However, in the case of the above-described conventional linear motion ball bearing, at the time of insert molding, as shown in FIG. 14 (c), for example, the outer periphery of the outer cylinder 101 is formed into the first mold 111. , The inner periphery of the outer cylinder 101 is brought into close contact with the second mold 112, and the cavities 106a, 11 for molding the ball holding portion 106 and the unloaded ball passage 110 are formed.
0a is formed, but it is difficult to bring the inner and outer circumferences of the outer cylinder 101 into close contact with the first and second molds 111 and 112 accurately, and a gap is formed between the contact surfaces to cause burrs. There was a problem.

【００１５】特に、外筒１０１内周と第２の金型１１２
との接触面間にバリが発生すると、負荷ボール転動面に
バリが発生することになり、バリを除去する必要があ
る。しかし、このようなボール保持部１０６，１０６間
の奥に発生するバリを除去することは非常に困難であ
り、事実上不可能である。Particularly, the inner circumference of the outer cylinder 101 and the second mold 112.
When burrs are generated between the contact surfaces with and, burrs are generated on the rolling surface of the loaded ball, and it is necessary to remove the burrs. However, it is very difficult and practically impossible to remove such burrs generated in the space between the ball holding portions 106, 106.

【００１６】本発明は、上記した従来技術の問題点を解
決するためになされてもので、その目的とするところ
は、軽量で、加工及び組立が容易で、しかもボールの循
環を円滑に行い得る移動ブロックを有する直線運動用案
内装置を提供することにある。The present invention has been made in order to solve the above-mentioned problems of the prior art. Therefore, the object of the present invention is to be lightweight, easy to process and assemble, and to smoothly circulate balls. An object is to provide a guide device for linear motion having a moving block.

【００１７】[0017]

【課題を解決するための手段】上記目的を達成するため
に、本発明にあっては、軌道レールに多数のボールを介
して移動ブロックを移動自在に設け、該移動ブロック
は、軌道レールに設けられたボール転走溝に対向して設
けられる負荷域のボール転走溝が設けられたブロック本
体と、該ブロック本体の両端に取り付けられる側蓋を、
を備えている直線運動案内装置において、前記ブロック
本体を、前記負荷域のボール転走溝が形成された軌道部
材を金型内にインサートして成形するインサート成形に
よって一体成形したことを特徴とする。In order to achieve the above object, according to the present invention, a movable block is movably provided on a track rail via a large number of balls, and the movable block is provided on the track rail. A block main body provided with a ball rolling groove in a load region provided opposite to the ball rolling groove provided, and side lids attached to both ends of the block main body,
In the linear motion guide device including, the block body is integrally formed by insert molding in which a raceway member in which the ball rolling groove of the load region is formed is inserted into a mold. .

【００１８】ボール転走溝に沿って設けられボールの脱
落を防止するボール保持部、無負荷域から負荷域へのボ
ールの方向転換をする方向転換路内周案内部及び無負荷
ボール案内部の内の、少なくとも一つを、前記ブロック
本体のインサート成形時に一体成形することを特徴とす
る。The ball holding portion is provided along the ball rolling groove to prevent the ball from falling off, the inner circumferential guide portion of the direction change path and the unloaded ball guide portion for changing the direction of the ball from the unloaded area to the loaded area. At least one of them is integrally molded at the time of insert molding of the block body.

【００１９】ブロック本体はボールを介して軌道レール
を左右から挟み込むようにして組み付けられる構成で、
前記ブロック本体にインサートされる軌道部材は一部材
によって構成され、軌道部材の左右両側部にボール転走
溝が設けられていることを特徴とする。The block main body is assembled so that the track rails are sandwiched from the left and right via balls,
The raceway member inserted into the block body is composed of one member, and ball rolling grooves are provided on both left and right sides of the raceway member.

【００２０】ブロック本体はボールを介して軌道レール
を左右から挟み込むようにして組み付けられる構成で、
前記ブロック本体にインサートされる軌道部材は前記ブ
ロック本体の左右両側部にそれぞれ配置される二部材に
よって構成され、各部材にボール転走溝が設けられてい
ることを特徴とする。The block main body is assembled so that the track rails are sandwiched from the left and right via balls,
The track member to be inserted into the block body is composed of two members arranged on both left and right sides of the block body, and each member is provided with a ball rolling groove.

【００２１】ブロック本体は左右に上下２条ずつのボー
ル列を具備し、左右に配置される各軌道部材の上下端部
には、転動時のボールの接触部よりも過剰にボールを取
り囲むかぶり部が設けられ、かぶり部がインサート成形
時に金型の一部に引っ掛る形状としたことを特徴とす
る。The block main body is provided with two rows of upper and lower balls on the left and right, and the upper and lower ends of each of the raceway members arranged on the left and right have a cover surrounding the balls in excess of the contact portion of the balls during rolling. Is provided, and the covering portion is shaped so as to be caught by a part of the mold during insert molding.

【００２２】ブロック本体は軌道レールに左右側面に並
んで配置される断面略矩形状の部材で、前記ブロック本
体側面と軌道レールの側面との間にボールが介在され、
前記ブロック本体にインサートされる軌道部材が一部材
によって構成されていることを特徴とする。The block main body is a member having a substantially rectangular cross section, which is arranged side by side on the left and right side surfaces of the track rail. A ball is interposed between the side surface of the block main body and the side surface of the track rail.
The track member inserted into the block body is constituted by one member.

【００２３】ブロック本体の成形材料は、樹脂、アルミ
ダイカスト、亜鉛ダイカストのうちのいずれかであるこ
とを特徴とする。The molding material of the block body is characterized by being any one of resin, aluminum die casting, and zinc die casting.

【００２４】２つの軌道部材をボール転走溝を互いに向
き合わせて金型内にインサートし、金型内において軌道
部材のボール転走溝と他の部位により挟んで支持し、成
形圧力を利用して軌道部材のボール転走溝を金型に押圧
して成形することを特徴とする。The two raceway members are inserted into the mold with the ball rolling grooves facing each other, sandwiched between the ball rolling grooves of the raceway member and other parts in the mold, and supported by using the molding pressure. The ball rolling groove of the raceway member is pressed against the die for molding.

【００２５】左右側部にそれぞれボール転走溝が形成さ
れた一つの軌道部材のボール転走溝と金型の一部とが成
形材料が入り込まない程度の接触状態で接触させて成形
することを特徴とする。Molding is carried out by contacting the ball rolling groove of one raceway member having the ball rolling grooves formed on the left and right side portions with a part of the mold in a contact state in which the molding material does not enter. Characterize.

【００２６】[0026]

【作用】本発明は、耐面圧が高いことが必要なのは、最
低限ボール転走溝が形成される部分であることに着目
し、ボール転走溝が形成される軌道部材を金型内にイン
サートし、ブロック本体を樹脂、軽量のアルミダイカス
トあるいは亜鉛ダイカストを用いて一体成形したもので
ある。従って、従来の金属ブロックを移動ブロックに比
較して大幅に軽量化できる。The present invention focuses on the fact that it is necessary to have a high surface pressure resistance at least in the portion where the ball rolling groove is formed, and the raceway member in which the ball rolling groove is formed is placed in the mold. It is inserted and the block body is integrally molded using resin, lightweight aluminum die casting or zinc die casting. Therefore, the weight of the conventional metal block can be significantly reduced as compared with the moving block.

【００２７】また、ボール転走溝に沿って設けられボー
ルの脱落を防止するボール保持部もブロック本体と一体
成形すれば、別体のボールリテーナを設けることなく、
しかも組み立てる必要もない。If the ball holding portion provided along the ball rolling groove for preventing the balls from falling is integrally formed with the block main body, a separate ball retainer is not required.
Moreover, there is no need to assemble.

【００２８】また、無負荷ボール案内部を一体成形すれ
ば、従来のようにボール逃げ穴を加工する必要がない
し、組み付ける必要も無くなる。Further, if the unloaded ball guide portion is integrally formed, it is not necessary to process the ball clearance hole and it is not necessary to assemble it as in the conventional case.

【００２９】さらに、負荷域から無負荷域へのボールの
方向転換をする方向転換路内周案内部を一体成形すれ
ば、従来のようにＲピースを別に用意する必要がない
し、組み付ける必要も無くなるばかりか、方向転換路内
周部と負荷ボール転走溝間、また方向転換路内周と無負
荷ボール通路間の段差が無くなり、スムーズに循環す
る。Furthermore, if the inner peripheral guide portion of the direction change path for changing the direction of the ball from the loaded area to the unloaded area is integrally formed, it is not necessary to separately prepare an R piece as in the conventional case, and it is not necessary to assemble it. Not only that, there is no step between the inner circumference of the direction change path and the loaded ball rolling groove, and there is no step between the inner circumference of the direction change path and the unloaded ball path, which allows smooth circulation.

【００３０】そして、２つの軌道部材を用いる場合に
は、ボール転走溝を互いに向き合わせて金型内にインサ
ートし、金型内において軌道部材のボール転走溝と他の
部位により挟んで支持し、成形圧力を利用して軌道部材
のボール転走溝を金型に押圧して成形する。When two raceway members are used, the ball rolling grooves face each other and are inserted into the mold, and are supported by being sandwiched by the ball rolling groove of the raceway member and other portions in the mold. Then, the ball rolling groove of the raceway member is pressed against the mold by using the molding pressure to mold.

【００３１】このようにすれば、ボール転走溝と金型と
の間のバリの発生が防止できる。By doing so, it is possible to prevent the occurrence of burrs between the ball rolling groove and the die.

【００３２】また、左右側部にそれぞれボール転走溝が
形成された一つの軌道部材のボール転走溝と金型の一部
とが成形材料が入り込まない程度の接触状態で接触させ
て成形する。バリを防止するためには、外筒と金型との
接触面が完全に密着している必要はなく、隙間が開いて
いても、成形材料の浸入を阻止できる程度の大きさであ
ればよい。Further, the ball rolling groove of one raceway member having the ball rolling grooves formed on the left and right sides respectively and a part of the mold are brought into contact with each other in a contact state such that the molding material does not enter and molding is carried out. . In order to prevent burrs, it is not necessary that the contact surfaces of the outer cylinder and the mold be in complete contact, and even if there is a gap, it may be of a size that can prevent the infiltration of the molding material. .

【００３３】[0033]

【実施例】以下に本発明を図示の実施例に基づいて説明
する。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to illustrated embodiments.

【００３４】図１は本発明の第１実施例に係る直線運動
案内装置が示されている。FIG. 1 shows a linear motion guide device according to a first embodiment of the present invention.

【００３５】すなわち、軌道レール１に多数のボール２
を介して移動ブロック３を移動自在に設けられている。
この移動ブロック３は、軌道レール１に設けられたボー
ル転走溝４に対向して設けられる負荷域のボール転走溝
５が設けられたブロック本体６と、ブロック本体６の両
端に取り付けられる側蓋７を、を備えている。That is, a large number of balls 2 are provided on the track rail 1.
The moving block 3 is movably provided via the.
The moving block 3 includes a block main body 6 provided with a ball rolling groove 5 in a load area provided opposite to a ball rolling groove 4 provided on the track rail 1 and a side attached to both ends of the block main body 6. A lid 7 is provided.

【００３６】そして、このブロック本体６はボール転走
溝５が形成された軌道部材８を金型内にインサートして
成形するインサート成形によって樹脂部９を一体成形し
たものである。樹脂に代えて軽量のアルミダイカストあ
るいは亜鉛ダイカストとしてもよい。軌道部材８は耐面
圧が高いことが必要で、素材として焼き入れ性がよく高
硬度（たとえばＨＲＣ５８〜６４程度）になること、耐
摩耗性、耐疲れ強さが高いこと、が好ましい。The block body 6 is formed by integrally molding the resin portion 9 by insert molding in which the raceway member 8 in which the ball rolling groove 5 is formed is inserted into the mold and molded. Instead of resin, lightweight aluminum die casting or zinc die casting may be used. The race member 8 is required to have high surface pressure resistance, and it is preferable that the material has good hardenability and high hardness (for example, about HRC58 to 64), high wear resistance, and high fatigue resistance.

【００３７】ブロック本体６は軌道レール１を挟むよう
に組み付けられる断面コ字形状で、ブロック本体６の左
右内側面と軌道レール１の左右側面との間にボール２が
介在されるもので、軌道部材８は、ブロック本体６の左
右両側部にそれぞれ配置される二部材によって構成さ
れ、各軌道部材８，８にボール転走溝５，５が形成され
ている。この左右のボール転走溝５，５は、それぞれ上
下２条ずつ設けられている。The block body 6 has a U-shaped cross section which is assembled so as to sandwich the track rail 1. The ball 2 is interposed between the left and right inner side surfaces of the block body 6 and the left and right side surfaces of the track rail 1. The member 8 is composed of two members arranged on both left and right sides of the block main body 6, and ball rolling grooves 5 and 5 are formed in the track members 8 and 8, respectively. The left and right ball rolling grooves 5 and 5 are provided in upper and lower two rows, respectively.

【００３８】軌道レール１側のボール転走溝４，４も左
右に上下２条ずつ設けられ、この実施例では、各対向す
る一対のボール転走溝４，５とボールとの接触部を結ぶ
線を接触角線として、左右の接触角線Ｌ1が軌道レール
１中央に向かって狭くなるような外開き構成となってい
る。Ball rolling grooves 4 and 4 on the side of the track rail 1 are also provided on the right and left by two rows, respectively, and in this embodiment, a pair of ball rolling grooves 4 and 5 facing each other and a contact portion between the balls are connected. The lines are contact angle lines, and the contact angle lines L1 on the left and right sides are narrowed toward the center of the track rail 1 so as to open outward.

【００３９】左右に配置される各軌道部材８，８の上下
端部には、転動時のボール２の接触部よりも過剰にボー
ル２を取り囲むかぶり部８１，８１が設けられ、このか
ぶり部８１，８１がインサート成形時に金型の一部に引
っ掛る形状となっている。Cover portions 81, 81 surrounding the ball 2 are provided at the upper and lower ends of the respective raceway members 8, 8 arranged on the left and right sides, which surround the ball 2 in excess of the contact portion of the ball 2 during rolling. 81 and 81 are shaped so as to be caught by a part of the mold during insert molding.

【００４０】さらに、この軌道部材８，８の背面には凹
部８２が設けられ、この凹部８２に樹脂部９の一部を食
い込ませることによって、ブロック本体６を軌道レール
１から上方に持ち上げる方向に作用する逆ラジアル荷重
を負荷するようになっている。Further, a recess 82 is provided on the back surface of each of the track members 8 and 8, and a part of the resin portion 9 is bited into the recess 82 so that the block body 6 is lifted upward from the track rail 1. It is designed to apply an acting reverse radial load.

【００４１】また、上下のボール転走溝５，５に沿っ
て、ボール２の脱落を防止する第１，第２ボール保持部
９１ａ，９１ｂが一体成形されている。Further, along the upper and lower ball rolling grooves 5 and 5, first and second ball holding portions 91a and 91b for preventing the balls 2 from falling off are integrally formed.

【００４２】一方、ブロック本体６の両端面には、無負
荷域から負荷域へのボール２の方向転換をする方向転換
路の内周案内部９２が形成されている。この内周案内部
９２が側蓋７に設けられた方向転換路の外周案内部７１
と共にＵ字状に曲がるパイプ状の方向転換路Ｃが構成さ
れる。On the other hand, on both end faces of the block main body 6, an inner peripheral guide portion 92 of a direction changing path for changing the direction of the ball 2 from the unloaded region to the loaded region is formed. This inner peripheral guide portion 92 is provided on the side lid 7 and is the outer peripheral guide portion 71 of the direction change path.
Together with this, a pipe-shaped direction change path C that is bent in a U shape is formed.

【００４３】さらに、樹脂部９には、上記ボール転走溝
５，５と並行に延びる無負荷ボール通路９３が形成され
ている。この無負荷ボール通路９３は断面円形の貫通穴
で、インサート成形時に一体成形されている。Further, the resin portion 9 is formed with an unloaded ball passage 93 extending in parallel with the ball rolling grooves 5, 5. The unloaded ball passage 93 is a through hole having a circular cross section and is integrally formed during insert molding.

【００４４】ここで、上記ボール保持部９１ａ，９１
ｂ、内周案内部９２及び無負荷ボール通路９３は、必ず
しもすべてをインサート成形時に一体成形する必要はな
く、いずれか一つを一体成形するようにしてもよい。ま
た、場合によっては、インサート成形時は軌道部材のみ
を一体成形するだけでもよい。Here, the ball holding portions 91a, 91
It is not always necessary to integrally form all of the b, the inner circumferential guide portion 92, and the unloaded ball passage 93 during insert molding, and any one of them may be integrally molded. Further, in some cases, only the race member may be integrally molded during insert molding.

【００４５】上記構成の直線運動案内装置にあっては、
ボール転走溝５が形成される軌道部材８を金型内にイン
サートして成形したので、従来の金属ブロックを切削加
工した移動ブロックに比較して大幅に軽量化できる。In the linear motion guide device having the above structure,
Since the raceway member 8 in which the ball rolling groove 5 is formed is inserted and molded in the mold, the weight can be significantly reduced as compared with the conventional moving block obtained by cutting the metal block.

【００４６】また、ボール転走溝５に沿ってボール保持
部９１ａ，９１ｂについても一体成形すれば、別体のボ
ールリテーナを設けることなく、しかも組み立てる必要
もない。Further, if the ball holding portions 91a and 91b are also integrally formed along the ball rolling groove 5, it is not necessary to assemble them without providing a separate ball retainer.

【００４７】また、無負荷ボール通路９３を一体成形す
れば、従来のようにボール逃げ穴を加工する必要がない
し、組み付ける必要も無くなる。Further, if the unloaded ball passage 93 is integrally formed, it is not necessary to form the ball clearance hole as in the conventional case, and it is not necessary to assemble it.

【００４８】さらに、負荷域から無負荷域へのボールの
方向転換をする方向転換路内周案内部９２も一体成形さ
れているので、従来のようにＲピースを別に用意する必
要がないし、組み付ける必要も無くなるばかりか、方向
転換路内周部９２と負荷ボール転走溝５間、また方向転
換路内周部９２と無負荷ボール通路９３間の段差が無く
なり、ボール２がスムーズに循環する。Further, since the inner peripheral guide portion 92 of the direction changing path for changing the direction of the ball from the loaded area to the unloaded area is also integrally formed, it is not necessary to separately prepare the R piece as in the conventional case, and it is assembled. Not only is there no need, but there is no step between the inner peripheral portion 92 of the direction changing passage and the loaded ball rolling groove 5, and between the inner peripheral portion 92 of the direction changing passage and the unloaded ball passage 93, so that the ball 2 circulates smoothly.

【００４９】そして、移動ブロック３を成形する場合に
は、図３に示すように、２つの軌道部材８，８のボール
転走溝５，５を互いに向き合わせて金型１０内にインサ
ートし、金型１０内において軌道部材８，８のボール転
走溝５，５を金型のボール転走溝支持部１０ａにより支
持し、成形圧力を利用して軌道部材８，８のボール転走
溝５，５を金型１０に押圧して成形する。When the moving block 3 is molded, as shown in FIG. 3, the ball rolling grooves 5, 5 of the two track members 8, 8 face each other and are inserted into the mold 10, In the mold 10, the ball rolling grooves 5, 5 of the track members 8, 8 are supported by the ball rolling groove support portion 10a of the mold, and the ball rolling groove 5 of the track members 8, 8 is utilized by utilizing the molding pressure. , 5 are pressed against the mold 10 to be molded.

【００５０】この点を詳述すると、金型１０のボール転
走溝支持部１０ａは、可動側の金型１０Ａ内に形成され
ており、その左右に軌道部材８，８が配置される。この
時、軌道部材８のかぶり部８１がボール転走溝支持部１
０ａにかぶさって引っ掛る。Explaining this point in detail, the ball rolling groove support portion 10a of the die 10 is formed in the movable die 10A, and the track members 8, 8 are arranged on the left and right sides thereof. At this time, the covering portion 81 of the raceway member 8 causes the ball rolling groove support portion 1 to move.
0a is caught and caught.

【００５１】次いで、金型１０の内、可動金型１０Ａが
固定金型１０Ｂ側に移動して型締めされる。Then, of the mold 10, the movable mold 10A moves to the fixed mold 10B side and is clamped.

【００５２】その後、金型１０内の軌道部材８の背面に
配置された押圧部材１１が、軌道部材８を押すことによ
り、金型１０のボール転走溝支持部１０ａが軌道部材８
のボール転走溝５と強固に接触することになる。After that, the pressing member 11 arranged on the back surface of the raceway member 8 in the die 10 pushes the raceway member 8 so that the ball rolling groove support portion 10a of the die 10 is moved to the raceway member 8.
It comes into firm contact with the ball rolling groove 5.

【００５３】前記金型１０のボール転走溝支持部１０ａ
は、左右２箇所あるが、その平行度を正確に形成し、か
つ軌道部材８のボール転走溝５と同一形状とするように
仕上げておく。Ball rolling groove support portion 10a of the die 10
There are two locations on the left and right, but the parallelism is accurately formed and finished so as to have the same shape as the ball rolling groove 5 of the raceway member 8.

【００５４】このような状態で樹脂成形が行われると、
軌道部材８は樹脂の成形圧力によりさらに中央の金型の
ボール転走溝支持部１ａに押し付けられる。When resin molding is performed in such a state,
The race member 8 is further pressed against the ball rolling groove support portion 1a of the central mold by the molding pressure of the resin.

【００５５】成形後、型開きして成形品を取り出すと、
２つの軌道部材８がインサートされたブロック本体６が
完成する。ブロック本体６の両端部には、方向転換路内
周案内部９２が形成され、ブロック本体６の両側部内に
は、無負荷ボール通路９３が形成されている。また、ブ
ロック本体６にインサートされた軌道部材８のボール転
走溝の両側縁にはボール保持部９１ａ，９１ｂが形成さ
れている。これらの部位は、軌道部材８のボール転走溝
を基準位置として、他の部位を連続状で、かる左右同時
に、両端の部位も同時に形成される。After molding, the mold is opened and the molded product is taken out.
The block body 6 in which the two track members 8 are inserted is completed. At both ends of the block main body 6, a direction changing passage inner circumferential guide portion 92 is formed, and at both sides of the block main body 6, unloaded ball passages 93 are formed. Further, ball holding portions 91a and 91b are formed on both side edges of the ball rolling groove of the track member 8 inserted into the block body 6. These parts are formed with the ball rolling groove of the track member 8 as a reference position, and the other parts are continuously formed, and the left and right parts are formed at the same time, and the end parts are formed at the same time.

【００５６】このような成形方式によるので、全ボール
転走溝の平行度、その溝間距離、移動ブロック６の上面
もしくは側端部からの位置が、全成形ショットとも同一
の寸法と精度を維持することができる。すなわち、一本
の軌道レール１には、２コの移動ブロックを組み合わ
せ、かつ軌道レールを２列平行に組み合わせて使用する
場合には、この特性によりテーブル装置全体の精度が向
上することになる。With this molding method, the parallelism of all ball rolling grooves, the distance between the grooves, and the position from the upper surface or the side end of the moving block 6 maintain the same size and accuracy in all molding shots. can do. That is, when two moving blocks are combined on one track rail 1 and two track rails are combined in parallel, this characteristic improves the accuracy of the entire table device.

【００５７】また、成形によるボール転走溝のバリも、
上述した通り、押圧部材１１による押し付けと、樹脂成
形圧力により強固にボール転走溝が金型の接触部分と接
触するので、その間に隙間は無くなるので、バリが発生
しない。Burrs in the ball rolling groove formed by molding are also
As described above, the ball rolling groove is firmly brought into contact with the contact portion of the mold by the pressing by the pressing member 11 and the resin molding pressure, so that there is no gap between them and no burr is generated.

【００５８】次に、図４〜図８には、第１実施例の各種
態様が示されている。Next, FIGS. 4 to 8 show various aspects of the first embodiment.

【００５９】すなわち、いずれも軌道部材８が二部材
で、ブロック本体６の左右両側に一つずつ配置された構
成である。That is, in each case, the track members 8 are two members, one on each of the left and right sides of the block body 6.

【００６０】図４は、軌道部材８を断面Ｃ字形状に成形
した薄肉部材によって構成したものである。この場合に
は、上下のボール列の間に第３ボール保持部９１ｃが設
けられている。その他の構成は図１の構成と全く同一で
ある。FIG. 4 shows the track member 8 which is formed of a thin member having a C-shaped cross section. In this case, the third ball holding portion 91c is provided between the upper and lower ball rows. The other configuration is exactly the same as that of FIG.

【００６１】図５は、各対向する一対のボール転走溝
４，５とボール２との接触角線Ｌ2が、軌道レール１中
央に向かって開くような内開き状態の接触構造としたも
ので、図４の例と同様に、上下のボール列間に第３ボー
ル保持部９１ｃが設けられている。その他の構成は図１
の構成と全く同一である。FIG. 5 shows a contact structure in which the contact angle line L2 between each pair of ball rolling grooves 4 and 5 facing each other and the ball 2 opens inward toward the center of the track rail 1. Similarly to the example of FIG. 4, a third ball holding portion 91c is provided between the upper and lower ball rows. Other configurations are shown in FIG.
The configuration is exactly the same.

【００６２】図６も、軌道部材８を断面Ｃ字形状に成形
した薄肉部材によって構成したもので、ボール列は左右
に２条ずつあるが、軌道レールの上端角部を、その上面
側と側面側で挟むように配置されている。In FIG. 6 as well, the track member 8 is formed of a thin member having a C-shaped cross section, and there are two rows of balls on the left and right, but the upper end corners of the track rail are the upper surface side and the side surface. It is arranged so as to be sandwiched between the sides.

【００６３】この場合には、上下に並ぶ各ボール列に対
応する無負荷ボール通路９３，９３が離れるので、図６
(ｂ)に示すように、方向転換路内周案内部９２はそれぞ
れ独立に設けられている。In this case, the unloaded ball passages 93, 93 corresponding to the upper and lower ball rows are separated from each other.
As shown in (b), the inner peripheral guide portions 92 of the direction changing path are independently provided.

【００６４】図７は左右に１列ずつのボール列を有する
タイプで、軌道部材８は、断面Ｃ字形状に成形した薄肉
部材によって構成したものである。FIG. 7 shows a type having one row of balls on the left and right, and the raceway member 8 is composed of a thin member molded in a C-shaped cross section.

【００６５】図８はブロック本体６が断面略Ｌ字形状
で、左右の一方側のボール列が軌道レール１の側面とブ
ロック本体６の内側面間に介在され、他方側のボール列
が軌道レール１の上面角部とブロック本体の内側面の隅
角部との間に介在されている。In FIG. 8, the block main body 6 has a substantially L-shaped cross section, the ball rows on the left and right sides are interposed between the side surfaces of the track rail 1 and the inner side surfaces of the block body 6, and the ball rows on the other side are the track rails. It is interposed between the upper surface corner portion and the corner portion of the inner side surface of the block body.

【００６６】そして、軌道部材８が、断面Ｃ字形状の薄
肉部材によって構成されている。The track member 8 is composed of a thin member having a C-shaped cross section.

【００６７】図９(ａ)には、本発明の第２実施例が示さ
れている。FIG. 9 (a) shows a second embodiment of the present invention.

【００６８】この第２実施例も、軌道レール１を左右に
跨ぐように配置される左右に配置されたボール２を介し
て軌道レール１に沿って摺動する移動ブロック３を有す
るものであるが、軌道部材２０８も軌道レール１を左右
に跨ぐように配置される一部材によって構成されている
点で第１実施例と異なる。その他の構成及び作用につい
ては第１実施例と同一なので、同一の構成部分について
は同一の符号を付して説明を省略する。This second embodiment also has a moving block 3 which slides along the track rail 1 via balls 2 arranged on the left and right so as to straddle the track rail 1 left and right. The track member 208 also differs from that of the first embodiment in that the track member 208 is also composed of one member that is disposed so as to straddle the track rail 1 to the left and right. Since other configurations and actions are the same as those of the first embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted.

【００６９】この第２実施例の場合には、図９(ｂ)に示
すように、軌道部材２０８のボール転走溝２０５と金型
１０のボール転走溝支持部１０ａとを、成形材料が入り
込まない程度の接触状態で接触させて成形する。In the case of the second embodiment, as shown in FIG. 9B, the ball rolling groove 205 of the raceway member 208 and the ball rolling groove supporting portion 10a of the die 10 are made of molding material. Mold by contacting in a contact state that does not enter.

【００７０】バリを防止するためには、ボール転走溝５
と金型１０のボール転走溝支持部１０ａとが完全に密着
している必要はなく、隙間が開いていても、成形材料の
浸入を阻止できる程度の大きさであればよい。In order to prevent burrs, the ball rolling groove 5
The ball rolling groove support portion 10a of the mold 10 does not need to be in complete contact with each other, and even if there is a gap, it may have a size that can prevent intrusion of the molding material.

【００７１】図１０〜図１２は、この第２実施例のバリ
エーションを示している。10 to 12 show variations of the second embodiment.

【００７２】図１０は、軌道部材２０８を断面Ｃ字形状
に成形した薄肉部材によって構成したものであり、その
他の構成は図８の構成と全く同一である。FIG. 10 shows the track member 208 formed of a thin member having a C-shaped cross section, and the other structure is exactly the same as that of FIG.

【００７３】図１１も、軌道部材８を断面Ｃ字形状に成
形した薄肉部材によって構成したもので、ボール列は左
右に２条ずつあるが、軌道レール１の上端角部を、その
上面側と側面側で挟むように配置されている。In FIG. 11 as well, the track member 8 is formed by a thin member having a C-shaped cross section, and there are two rows of balls on the left and right sides. It is arranged so as to be sandwiched between the side surfaces.

【００７４】図１２は左右に１列ずつのボール列を有す
るタイプで、軌道部材８は、断面Ｃ字形状に成形した薄
肉部材によって構成したものである。FIG. 12 shows a type having one row of balls on each side, and the raceway member 8 is composed of a thin member formed in a C-shaped cross section.

【００７５】図１３は本発明の第３実施例を示すもので
ある。FIG. 13 shows a third embodiment of the present invention.

【００７６】すなわち、軌道レール３０１に多数のボー
ル３０２を介して移動ブロック３０３を移動自在に設け
られている。この移動ブロック３０３は、軌道レール３
０１に設けられたボール転走溝３０４に対向して設けら
れる負荷域のボール転走溝３０５が設けられたブロック
本体３０６と、ブロック本体３０６の両端に取り付けら
れる側蓋３０７を、を備えている。That is, a moving block 303 is movably provided on the track rail 301 via a large number of balls 302. This moving block 303 is used for the track rail 3
01 is provided with a block main body 306 provided with a ball rolling groove 305 in a load region provided opposite to the ball rolling groove 304 provided in No. 01, and side covers 307 attached to both ends of the block main body 306. .

【００７７】そして、このブロック本体３０６はボール
転走溝３０５が形成された軌道部材８を金型内にインサ
ートして成形するインサート成形によって樹脂部３０９
を一体成形したものである。The block main body 306 is formed by a resin portion 309 by insert molding in which the raceway member 8 in which the ball rolling groove 305 is formed is inserted and molded in a mold.
Is integrally molded.

【００７８】ブロック本体３０６は軌道レール３０１と
平行に並んで配置される断面矩形状の部材で、ブロック
本体３０６と軌道レール３０１の対向する側面間にボー
ル３０２が介在される。The block main body 306 is a member having a rectangular cross section which is arranged in parallel with the track rail 301, and the ball 302 is interposed between the opposing side surfaces of the block main body 306 and the track rail 301.

【００７９】軌道部材３０８は断面Ｃ字形状の薄肉部材
で、上下２条のボール転走溝３０５，３０５が形成され
ている。The track member 308 is a thin member having a C-shaped cross section, and has two ball rolling grooves 305, 305 formed on the upper and lower sides.

【００８０】また、上下のボール転走溝３０５，３０５
に沿って、ボール３０２の脱落を防止するための第１，
第２ボール保持部９１ａ，９１ｂ及び第３ボール保持部
９１ｃが一体成形されている。Further, the upper and lower ball rolling grooves 305, 305
Along the first to prevent the ball 302 from falling off,
The second ball holding portions 91a and 91b and the third ball holding portion 91c are integrally formed.

【００８１】なお、ブロック本体３０６の両端面には、
図示しないが、図２(ｂ)に示したと同様の方向転換路の
内周案内部が形成されている。In addition, on both end surfaces of the block body 306,
Although not shown, an inner peripheral guide portion of the direction changing path similar to that shown in FIG. 2B is formed.

【００８２】さらに、樹脂部３０９には、上記ボール転
走溝３０５，３０５と並行に延びる無負荷ボール通路３
９３が形成されており、インサート成形時に一体成形さ
れている。Further, the resin portion 309 has an unloaded ball passage 3 extending in parallel with the ball rolling grooves 305, 305.
93 is formed, and is integrally formed at the time of insert molding.

【００８３】この場合の成形手順は、図１の場合と同様
であるので、その説明を省略する。Since the molding procedure in this case is the same as that in the case of FIG. 1, the description thereof will be omitted.

【００８４】また、ボール列の数は、図１３(ｃ)に示す
ように、１列でもよい。The number of rows of balls may be one as shown in FIG. 13 (c).

【００８５】[0085]

【発明の効果】以上説明したように、本発明によれば、
ボール転走溝が形成される軌道部材を金型内にインサー
トし、ブロック本体を樹脂、軽量のアルミダイカストあ
るいは亜鉛ダイカストを用いて一体成形したので、従来
の金属ブロックを用いた移動ブロックに比較して大幅に
軽量化できる。As described above, according to the present invention,
Since the raceway member in which the ball rolling groove is formed is inserted in the mold and the block body is integrally molded using resin, lightweight aluminum die casting or zinc die casting, it is compared to the conventional moving block using a metal block. It can be significantly reduced in weight.

【００８６】また、ボール保持部、無負荷ボール通路及
びボール方向転換路内周部の少なくともいずれか一方の
部分もブロック本体と一体成形すれば、別途加工する必
要がなくなって部品点数を削減でき、組み立て工数も削
減でき、低コスト化を図ることができる。Further, if at least one of the ball holding portion, the unloaded ball passage and the inner peripheral portion of the ball direction changing passage is integrally formed with the block body, it is not necessary to separately process it, and the number of parts can be reduced. The number of assembly steps can be reduced and the cost can be reduced.

【００８７】特に、負荷域から無負荷域へのボールの方
向転換をする方向転換路内周案内部を一体成形すれば、
方向転換路内周部と負荷ボール転走溝間、また方向転換
路内周と無負荷ボール通路間の段差が無くなり、スムー
ズに循環する。Particularly, if the inner peripheral guide portion of the direction change path for changing the direction of the ball from the loaded area to the unloaded area is integrally formed,
There is no step between the inner circumference of the direction change path and the loaded ball rolling groove, and between the inner circumference of the direction change path and the unloaded ball path, allowing for smooth circulation.

【００８８】そして、二つの軌道部材を用いる場合に
は、ボール転走溝を互いに向き合わせて金型内にインサ
ートし、金型内において軌道部材のボール転走溝と他の
部位により挟んで支持し、成形圧力を利用して軌道部材
のボール転走溝を金型に押圧して成形すれば、ボール転
走溝と金型との間のバリの発生が防止できる。When two raceway members are used, the ball rolling grooves face each other and are inserted into the mold, and the ball rolling grooves of the raceway member and other parts are sandwiched and supported in the mold. Then, if the ball rolling groove of the raceway member is pressed against the mold by using the molding pressure for molding, the occurrence of burrs between the ball rolling groove and the mold can be prevented.

【００８９】また、左右側部にそれぞれボール転走溝が
形成された一つの軌道部材のボール転走溝と金型の一部
とが成形材料が入り込まない程度の接触状態で接触させ
て成形すれば、ボール転走溝にバリが発生しない。Further, the ball rolling groove of one raceway member having the ball rolling grooves formed on the left and right side portions and a part of the mold are brought into contact with each other in a contact state in which the molding material does not enter and molding is performed. As a result, burr does not occur in the ball rolling groove.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１は本発明の第１実施例に係る直線運動案内
装置を示す図である。FIG. 1 is a diagram showing a linear motion guide device according to a first embodiment of the present invention.

【図２】図２は本発明の第１実施例に係る直線運動案内
装置を示す図である。FIG. 2 is a diagram showing a linear motion guide device according to a first embodiment of the present invention.

【図３】図３は第１実施例の直線運動案内装置のブロッ
ク本体のインサート成形工程の説明図である。FIG. 3 is an explanatory diagram of an insert molding process of the block body of the linear motion guide device according to the first embodiment.

【図４】図４は本発明の第１実施例の一態様を示す図で
ある。FIG. 4 is a diagram showing an aspect of a first embodiment of the present invention.

【図５】図５は本発明の第１実施例の一態様を示す図で
ある。FIG. 5 is a diagram showing one mode of the first embodiment of the present invention.

【図６】図６は本発明の第１実施例の一態様を示す図で
ある。FIG. 6 is a diagram showing an aspect of a first embodiment of the present invention.

【図７】図７は本発明の第１実施例の一態様を示す図で
ある。FIG. 7 is a diagram showing one mode of the first embodiment of the present invention.

【図８】図８は本発明の第１実施例の一態様を示す図で
ある。FIG. 8 is a diagram showing one mode of the first embodiment of the present invention.

【図９】図９は本発明の第２実施例に係る直線運動案内
装置を示す図である。FIG. 9 is a diagram showing a linear motion guide device according to a second embodiment of the present invention.

【図１０】図１０は本発明の第２実施例の一態様を示す
図である。FIG. 10 is a diagram showing one mode of a second embodiment of the present invention.

【図１１】図１１は本発明の第２実施例の一態様を示す
図である。FIG. 11 is a diagram showing an aspect of a second embodiment of the present invention.

【図１２】図１２は本発明の第２実施例の一態様を示す
図である。FIG. 12 is a diagram showing an aspect of a second embodiment of the present invention.

【図１３】図１３は本発明の第３実施例に係る直線運動
案内装置を示す図である。FIG. 13 is a diagram showing a linear motion guide device according to a third embodiment of the present invention.

【図１４】図１４は従来の直線運動ベアリングを示す図
である。FIG. 14 is a diagram showing a conventional linear motion bearing.

【符号の説明】[Explanation of symbols]

１ 軌道レール ２ ボール ３ 移動ブロック ４，５ ボール転走溝 ６ ブロック本体 ７ 側蓋 ８ 軌道部材 ９ 樹脂部 ９１ａ〜９１ｃ 第１〜第３ボール保持部 ９２ 方向転換路内周案内部 ９３ 無負荷ボール通路 １０ 金型 １０ａ ボール転走溝支持部 1 Track Rail 2 Ball 3 Moving Block 4,5 Ball Rolling Groove 6 Block Main Body 7 Side Lid 8 Track Member 9 Resin Part 91a to 91c First to Third Ball Holding Part 92 Direction Change Road Inner Circumferential Guide Part 93 Unloaded Ball Passage 10 Mold 10a Ball rolling groove support

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】軌道レールに多数のボールを介して移動ブ
ロックを移動自在に設け、該移動ブロックは、軌道レー
ルに設けられたボール転走溝に対向して設けられる負荷
域のボール転走溝が設けられたブロック本体と、該ブロ
ック本体の両端に取り付けられる側蓋を、を備えている
直線運動案内装置において、 前記ブロック本体を、前記負荷域のボール転走溝が形成
された軌道部材を金型内にインサートして成形するイン
サート成形によって一体成形したことを特徴とする直線
運動案内装置。1. A moving block is movably provided on a track rail via a large number of balls, and the moving block is provided with a ball rolling groove in a load region provided opposite to a ball rolling groove provided on the track rail. In a linear motion guide device comprising a block main body provided with and side lids attached to both ends of the block main body, the block main body is provided with a track member having a ball rolling groove in the load range. A linear motion guide device characterized by being integrally molded by insert molding in which it is inserted into a mold and molded. 【請求項２】ボール転走溝に沿って設けられボールの脱
落を防止するボール保持部、無負荷域から負荷域へのボ
ールの方向転換をする方向転換路内周案内部及び無負荷
ボール案内部の内の、少なくとも一つを、前記ブロック
本体のインサート成形時に一体成形することを特徴とす
る請求項１に記載の直線運動案内装置。像形成装置。2. A ball holding portion provided along the ball rolling groove to prevent the ball from falling off, a direction change path inner circumferential guide portion for changing the direction of the ball from the unloaded area to the loaded area, and the unloaded ball guide. The linear motion guide device according to claim 1, wherein at least one of the parts is integrally formed when the block body is insert-molded. Image forming device. 【請求項３】ブロック本体はボールを介して軌道レール
を左右から挟み込むようにして組み付けられる構成で、 前記ブロック本体にインサートされる軌道部材は一部材
によって構成され、軌道部材の左右両側部にボール転走
溝が設けられていることを特徴とする請求項１に記載の
直線運動案内装置。3. The block main body is assembled so as to sandwich the track rails from the left and right via balls, and the track member inserted into the block main body is composed of one member, and the ball members are provided on both left and right sides of the track member. The linear motion guide device according to claim 1, wherein a rolling groove is provided. 【請求項４】ブロック本体はボールを介して軌道レール
を左右から挟み込むようにして組み付けられる構成で、 前記ブロック本体にインサートされる軌道部材は前記ブ
ロック本体の左右両側部にそれぞれ配置される二部材に
よって構成され、各部材にボール転走溝が設けられてい
ることを特徴とする請求項１に記載の直線運動案内装
置。4. The block main body is assembled so that the track rails are sandwiched from the left and right via balls, and the track members inserted into the block main body are two members respectively arranged on both left and right sides of the block main body. The linear motion guide device according to claim 1, wherein each member is provided with a ball rolling groove. 【請求項５】ブロック本体は左右に上下２条ずつのボー
ル列を具備し、左右に配置される各軌道部材の上下端部
には、転動時のボールの接触部よりも過剰にボールを取
り囲むかぶり部が設けられ、 該かぶり部がインサート成形時に金型の一部に引っ掛る
形状とした請求項４に記載の直線運動案内装置。5. The block main body is provided with two rows of upper and lower balls on the left and right, and the upper and lower ends of each of the track members arranged on the left and right have balls excessively larger than the contact portions of the balls during rolling. The linear motion guide device according to claim 4, further comprising a covering portion surrounding the covering portion, wherein the covering portion is shaped so as to be caught by a part of a mold during insert molding. 【請求項６】ブロック本体は軌道レールに左右側面に並
んで配置される断面略矩形状の部材で、前記ブロック本
体側面と軌道レールの側面との間にボールが介在され、
前記ブロック本体にインサートされる軌道部材が一部材
によって構成されていることを特徴とする請求項１に記
載の直線運動案内装置。6. The block main body is a member having a substantially rectangular cross section and is arranged side by side on the left and right side surfaces of the track rail, and a ball is interposed between the side surface of the block main body and the side surface of the track rail.
The linear motion guide device according to claim 1, wherein the track member to be inserted into the block body is constituted by one member. 【請求項７】ブロック本体の成形材料は、樹脂、アルミ
ダイカスト、亜鉛ダイカストのうちのいずれかである請
求項１に記載の直線運動案内装置。7. The linear motion guide device according to claim 1, wherein the molding material of the block body is one of resin, aluminum die casting, and zinc die casting. 【請求項８】２つの軌道部材をボール転走溝を互いに向
き合わせて金型内にインサートし、金型内において軌道
部材のボール転走溝と他の部位により挟んで支持し、成
形圧力を利用して軌道部材のボール転走溝を金型に押圧
して成形する請求項４に記載の直線運動案内装置の成形
方法。8. The two raceway members are inserted into a mold with their ball rolling grooves facing each other, and are supported by being sandwiched between the ball rolling groove of the raceway member and another portion in the mold, and molding pressure is applied. The method for molding a linear motion guide device according to claim 4, wherein the ball rolling groove of the raceway member is pressed against a mold by using the molding. 【請求項９】左右側部にそれぞれボール転走溝が形成さ
れた一つの軌道部材のボール転走溝と金型の一部とが成
形材料が入り込まない程度の接触状態で接触させて成形
する請求項３に記載の直線運動案内装置の成形方法。9. A ball rolling groove of one raceway member having ball rolling grooves formed on its left and right side portions and a part of a die are brought into contact with each other in such a contact state that a molding material does not enter and molding is performed. The method for forming the linear motion guide device according to claim 3.
JP04482295A 1995-02-08 1995-02-08 Forming method of linear motion guide device Expired - Lifetime JP3550208B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP04482295A JP3550208B2 (en) 1995-02-08 1995-02-08 Forming method of linear motion guide device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04482295A JP3550208B2 (en) 1995-02-08 1995-02-08 Forming method of linear motion guide device

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2003330448A Division JP3898679B2 (en) 2003-09-22 2003-09-22 Linear motion guide device

Publications (2)

Publication Number Publication Date
JPH08219153A true JPH08219153A (en) 1996-08-27
JP3550208B2 JP3550208B2 (en) 2004-08-04

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ID=12702154

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001029450A1 (en) * 1999-10-18 2001-04-26 Smc Kabushiki Kaisha Actuator
US6761482B2 (en) 2001-06-19 2004-07-13 Thk Co., Ltd. Rolling guide apparatus
JP2008523327A (en) * 2004-12-09 2008-07-03 シエツフレル コマンディートゲゼルシャフト Rolling bearings for linear guides
DE102009009308A1 (en) * 2009-02-17 2010-08-19 Robert Bosch Gmbh Linear movement device, has gauging device provided for gauging solid measure of guide rail for determining relative position between rotor and guide rail, where gauging device is attached to rolling surface part of rotor
KR20160002455U (en) * 2015-01-05 2016-07-13 마오-투 리 Linear slide over-molding fabrication method, linear slide thus made
CN112443574A (en) * 2019-08-30 2021-03-05 鋐通企业股份有限公司 Modular linear sliding rail structure

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008123371A1 (en) 2007-03-29 2008-10-16 Thk Co., Ltd. Motion guide device and method of producing the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001029450A1 (en) * 1999-10-18 2001-04-26 Smc Kabushiki Kaisha Actuator
JP2001116100A (en) * 1999-10-18 2001-04-27 Smc Corp Actuator
US6761482B2 (en) 2001-06-19 2004-07-13 Thk Co., Ltd. Rolling guide apparatus
JP2008523327A (en) * 2004-12-09 2008-07-03 シエツフレル コマンディートゲゼルシャフト Rolling bearings for linear guides
JP4809364B2 (en) * 2004-12-09 2011-11-09 シエツフレル コマンディートゲゼルシャフト Rolling bearings for linear guides
DE102009009308A1 (en) * 2009-02-17 2010-08-19 Robert Bosch Gmbh Linear movement device, has gauging device provided for gauging solid measure of guide rail for determining relative position between rotor and guide rail, where gauging device is attached to rolling surface part of rotor
KR20160002455U (en) * 2015-01-05 2016-07-13 마오-투 리 Linear slide over-molding fabrication method, linear slide thus made
CN112443574A (en) * 2019-08-30 2021-03-05 鋐通企业股份有限公司 Modular linear sliding rail structure

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