JPS6322240A - Ball slideway - Google Patents
Ball slidewayInfo
- Publication number
- JPS6322240A JPS6322240A JP61163384A JP16338486A JPS6322240A JP S6322240 A JPS6322240 A JP S6322240A JP 61163384 A JP61163384 A JP 61163384A JP 16338486 A JP16338486 A JP 16338486A JP S6322240 A JPS6322240 A JP S6322240A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- retainer
- load guide
- ball
- guide groove
- 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.)
- Pending
Links
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- F16C29/0652—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 at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage
- F16C29/0654—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 at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls
- F16C29/0659—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 at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls
- F16C29/0661—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 at least partly defined by separate parts, e.g. covers attached to the legs of the main body of the U-shaped carriage with balls with four rows of balls with load directions in O-arrangement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/40—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members using ball, roller or wheel arrangements
-
- 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
- F16C29/0609—Details of the bearing body or carriage or parts thereof, e.g. methods for manufacturing or assembly of the ends of the bearing body or carriage where the rolling elements change direction, e.g. end caps
-
- 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
- F16C2322/00—Apparatus used in shaping articles
- F16C2322/39—General build up of machine tools, e.g. spindles, slides, actuators
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、工作機械等においてベッド上に作業テーブル
を摺動自在に支持する場合に使用されるボールスライド
ウェイに関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a ball slideway used when a work table is slidably supported on a bed in a machine tool or the like.
従来の技術
従来、ベッド上に作業テーブルを摺動自在に支持する工
作機械等において、作業能率向上のためには作業テーブ
ルの摺動速度を高めることが必要であり、そのためには
作業テーブルの摺動抵抗を小さくすることが重要な課題
である。この課題を解決することを目的として種々の形
式のボールスライドウェイが開発されており、その代表
的なものとしては特開昭５７−２７６３１号公報、特開
昭５７−１８９７４６号公報、特開昭５８−３７３１５
号公報、特開昭５８−４５２２６号公報、米国特許４０
３０１９１号明細書に記載されたものがある。また、ボ
ールに変えてコロを用いたものとしては特開昭５８−６
２２号公報に記載されたものがある。Conventional technology In machine tools, etc., in which a work table is slidably supported on a bed, it is necessary to increase the sliding speed of the work table in order to improve work efficiency. An important issue is to reduce dynamic resistance. Various types of ball slideways have been developed with the aim of solving this problem, and representative ones include JP-A-57-27631, JP-A-57-189746, and JP-A-Sho 57-189746. 58-37315
No. 58-45226, U.S. Patent No. 40
There is one described in the specification of No. 30191. Also, as a device using a roller instead of a ball, JP-A-58-6
There is one described in Publication No. 22.
発明が解決しようとする問題点
従来、ボールスライドウェイのボール循環路はガイド部
の片側につき上下二段に形成されており、各ボール循環
路は負荷ガイド溝と無負荷ガイド溝とこれらのガイド溝
の端部同志をつなぐ旋回溝とから構成されている。そし
て、負荷ガイド溝と無負荷ガイド溝とは上下方向に配置
されている。このため、ボール循環路の形成に伴い上下
方向の寸法が大きくなり、工作機械の高さ寸法が大きく
なっている。また、工作機械は、全高や作業テーブルの
高さに関して一定の制約を受ける場合があり、負荷ガイ
ド溝と無負荷ガイド溝との間隔を自由に大きくとること
が困難である。このため、旋回溝の旋回半径を大きくす
ることが困難になり、旋回溝におけるボールの円滑な転
勤が害されている。Problems to be Solved by the Invention Conventionally, the ball circulation path of a ball slideway was formed in two stages, upper and lower, on one side of the guide part, and each ball circulation path consisted of a loaded guide groove, an unloaded guide groove, and these guide grooves. and a turning groove that connects the ends of each other. The load guide groove and the no-load guide groove are arranged in the vertical direction. For this reason, the vertical dimension increases with the formation of the ball circulation path, and the height dimension of the machine tool increases. Further, machine tools are sometimes subject to certain restrictions regarding the overall height and the height of the work table, making it difficult to freely increase the distance between the load guide groove and the no-load guide groove. This makes it difficult to increase the turning radius of the turning groove, which impairs the smooth transfer of the ball in the turning groove.
なお、高さ寸法を抑えるためにボール循環路を略水平面
内に形成したものもあるが、旋回溝の旋回半径を大きく
しようとすればそれにつれて横幅寸法が増大している。Although some ball circulation paths are formed in a substantially horizontal plane in order to suppress the height, if the turning radius of the turning groove is increased, the width increases accordingly.
また、特開昭５８−６２２号公報に記載されたように二
つの循環路をたすき掛け状に配置したものもあるが、旋
回溝部の加工が困難である。Furthermore, as described in Japanese Unexamined Patent Publication No. 58-622, there is a system in which two circulation paths are arranged in a cross-over manner, but it is difficult to process the turning groove.
問題点を解決するための手段
ブラケットにボールスライド部を設け、このボールスラ
イド部に上下一対の負荷ガイド溝と上下一対の無負荷ガ
イド溝とを形成する。ボールスライド部の両端部に取付
けられるリテーナを設け、このリテーナに一方の負荷ガ
イド溝と一方の無負荷ガイド溝との端部同志を水平面に
対して略４５°の傾きをもってつなぐ円弧状の第一の旋
回溝を形成する。さらに、リテーナに第一の旋回溝より
浅い取付溝を形成し、他方の負荷ガイド溝と他方の無負
荷ガイド溝との端部同志をつなぐとともに第一の旋回溝
とたすき掛け状に略直交する円弧状の第二の旋回溝を形
成したリテーナ中子を取付、溝に取付ける。Means for Solving the Problem A ball slide portion is provided on the bracket, and a pair of upper and lower load guide grooves and a pair of upper and lower non-load guide grooves are formed in the ball slide portion. A retainer is provided to be attached to both ends of the ball slide part, and a first arc-shaped retainer is provided to connect the ends of one load guide groove and one no-load guide groove at an inclination of approximately 45 degrees with respect to the horizontal plane. forming a turning groove. Furthermore, a mounting groove shallower than the first turning groove is formed in the retainer, and the groove connects the end portions of the other load guide groove and the other no-load guide groove, and is substantially orthogonal to the first turning groove in a cross-shaped manner. A retainer core having a second arc-shaped turning groove is attached and attached to the groove.
作用 リテーナに第一の旋回溝と取付溝とを形成し。action A first turning groove and a mounting groove are formed in the retainer.
第一の旋回溝とたすき掛け状に略直交する第二の旋回溝
を形成したリテーナ中子を取付溝に取付けることによっ
て、リテーナにおける二つの旋回溝の形成を容易に行な
う。By attaching a retainer core in which a second pivot groove is formed, which is substantially orthogonal to the first pivot groove in a cross-cutting manner, to the mounting groove, two pivot grooves can be easily formed in the retainer.
実施例 本発明の一実施例を図面に基づいて説明する。Example An embodiment of the present invention will be described based on the drawings.
まず、工作機械等のベッド１の上部には左右一対のガイ
ド部２が互いに平行な状態で固定されている。これらの
ガイド部２は双頭レール形状に形成されており、ガイド
部２の長手方向にそった左右両側面には外方に向けて４
５°の角度で拡開する上下一対の傾斜面３を有する凹部
４が形成されている。前記傾斜面３にはこれらの傾斜面
３の長手方向にそってガイド溝５，６が形成されている
。First, a pair of left and right guide parts 2 are fixed in parallel to each other on the upper part of a bed 1 of a machine tool or the like. These guide parts 2 are formed in a double-headed rail shape, and there are four outward facing sides on both left and right sides along the longitudinal direction of the guide parts 2.
A recess 4 is formed having a pair of upper and lower inclined surfaces 3 that widen at an angle of 5 degrees. Guide grooves 5 and 6 are formed in the inclined surfaces 3 along the longitudinal direction of these inclined surfaces 3.
つぎに９作業テーブル７の下面の四隅には前記ガイド部
２の上面と左右両側面とを囲む断面形状路コの字形のブ
ラケット８が固定されている。Next, brackets 8 having a U-shaped cross section are fixed to the four corners of the lower surface of the work table 7, surrounding the upper surface and both left and right side surfaces of the guide portion 2.
前記ブラケット８には前記凹部４に対向する一対のボー
ルスライド部９が設けられている。これらのボールスラ
イド部９は、ブラケット８の一部であるボールスライド
本体１０と、このボールスライド本体１０の前記凹部４
に対向する側面部に取付けられる側部保持器１１と、ボ
ールスライド本体１０の下面部に取付けられる下部保持
器１２とから構成されている。The bracket 8 is provided with a pair of ball slide parts 9 facing the recess 4. These ball slide parts 9 include a ball slide main body 10 which is a part of the bracket 8, and the recessed part 4 of this ball slide main body 10.
The ball slide body 10 is composed of a side retainer 11 attached to the side surface facing the ball slide body 10, and a lower retainer 12 attached to the lower surface of the ball slide body 10.
前記ボールスライド本体１０の前記凹部４に対向する側
面部には断面形状が円弧状であるとともに前記ガイド溝
５，６と平行に対向するガイド溝１３．１４が形成され
ている。また、ボールスライド本体１０の下面部には断
面形状方形の下端開口のガイド溝１５が形成されている
。さらに、ガイド溝１５の上方にはボールスライド本体
１０を貫通する断面形状円形の無負荷ガイド溝である第
二の無負荷ガイド溝１６が形成されている。Guide grooves 13 and 14 are formed on the side surface of the ball slide body 10 facing the recess 4 and have an arcuate cross-section and are parallel to and opposite to the guide grooves 5 and 6. Further, a guide groove 15 with a lower end opening having a rectangular cross section is formed in the lower surface of the ball slide main body 10. Furthermore, a second no-load guide groove 16 is formed above the guide groove 15 and is a no-load guide groove having a circular cross section and passing through the ball slide main body 10 .
前記側部保持器１１の長手方向にそった上下両端部には
断面形状円弧状のガイド溝１７．１８が形成されている
。そして、ボールスライド本体１０に側部保持器１１を
取付けることにより、ガイド溝１７と前記ガイド溝１３
とによって前記ガイド溝５に対向する負荷ガイド溝であ
る第一の負荷ガイド溝１９が形成されている。なお、側
部保持器１１の長手方向両端部には後述するリテーナに
形成された取付用凸部が係合される凹部２０が形成され
ている。Guide grooves 17 and 18 having an arcuate cross-section are formed at both upper and lower ends of the side holder 11 along the longitudinal direction. By attaching the side retainer 11 to the ball slide main body 10, the guide groove 17 and the guide groove 13 are
A first load guide groove 19, which is a load guide groove facing the guide groove 5, is formed by this. Incidentally, recesses 20 are formed at both ends in the longitudinal direction of the side retainer 11, and are engaged with mounting projections formed on the retainer, which will be described later.
前記下部保持器１２には前記ガイド溝１４，１８に対向
する断面形状円弧状のガイド溝２１と、前記ガイド溝１
５に対向する断面形状円弧状のガイド溝２２とが形成さ
れている。そしてこの下部保持器１２をボールスライド
本体１ｏに取付けることにより、前記ガイド溝１４，１
８．２１により負荷ガイド溝である第二の負荷ガイド溝
２３が形成され、前記ガイド溝１５．２２により無負荷
ガイド溝である第一の無負荷ガイド溝２４が形成されて
いる。前記下部保持器１２は固定用ねじ２５により前記
ボールスライド本体１０に固定されており、さらに、こ
の固定用ねじ２５によって水等の浸入を防止する底面シ
ール２６が同時に固定されている。The lower retainer 12 has a guide groove 21 having an arcuate cross section facing the guide grooves 14 and 18, and a guide groove 21 having an arcuate cross section.
A guide groove 22 having an arcuate cross-section and facing the guide groove 5 is formed. By attaching this lower retainer 12 to the ball slide main body 1o, the guide grooves 14, 1
8.21 forms a second load guide groove 23 which is a load guide groove, and the guide groove 15.22 forms a first non-load guide groove 24 which is a non-load guide groove. The lower retainer 12 is fixed to the ball slide main body 10 by fixing screws 25, and a bottom seal 26 for preventing water from entering is also fixed by the fixing screws 25.
前記ボールスライド部９の両端部にはそれぞれリテーナ
２７が取付けられている。このリテーナ２７には、まず
、第一の負荷ガイド溝１９の端部と第一の無負荷ガイド
溝２４の端部とをつなぐ円弧状の旋回溝である第一の旋
回溝２８が水平面に対して４５″の傾きをもって形成さ
れている。ついで、リテーナ２７には前記第一の旋回溝
２８と直交する向きにこの第一の旋回溝２８よりも浅い
取付溝２９が形成され、この取付溝２９内には前記第一
の旋回溝２８とたすき掛け状に直交する第二の旋回溝３
０が形成されたリテーナ中子３１が取付けられている。Retainers 27 are attached to both ends of the ball slide section 9, respectively. In this retainer 27, first, a first turning groove 28, which is an arcuate turning groove connecting an end of the first load guide groove 19 and an end of the first no-load guide groove 24, is formed with respect to a horizontal plane. The retainer 27 is formed with an inclination of 45''. Next, a mounting groove 29 is formed in the retainer 27 in a direction perpendicular to the first turning groove 28 and is shallower than the first turning groove 28. Inside is a second turning groove 3 that crosses the first turning groove 28 at right angles.
A retainer core 31 having a number 0 formed thereon is attached.
そして、この第二の旋回溝３０により前記第二の負荷ガ
イド溝２３の端部と前記第二の無負荷ガイド溝１６の端
部とがつながれている。そして、前記第一の負荷ガイド
溝１９と第一の無負荷ガイド溝２４と第一の旋回溝２８
とにより第一のボール循環路３２が形成され、前記第二
の負荷ガイド溝２１と第二の無負荷ガイド溝１６と第二
の旋回溝３０とより第二のボール循環路３３が形成され
、これらのボール循環路３２゜３３内には多数のボール
３４が転勤自在に保持されている。ここで、第一のボー
ル循環路３２と第二のボール循環路３３とは水平面に対
して４５゜の傾きをもって互いに直交する面内に一つず
つ形成されている。なお、リテーナ２７の前記ブラケッ
ト８に対向する端面部には前記凹部２０に係合される取
付用凸部３５が形成されている。また。The end of the second load guide groove 23 and the end of the second no-load guide groove 16 are connected by the second turning groove 30. The first load guide groove 19, the first no-load guide groove 24, and the first turning groove 28
A first ball circulation path 32 is formed by the second load guide groove 21, the second no-load guide groove 16, and the second pivot groove 30, and a second ball circulation path 33 is formed by A large number of balls 34 are held in these ball circulation paths 32 and 33 in a movable manner. Here, the first ball circulation path 32 and the second ball circulation path 33 are formed one by one in a plane that is orthogonal to each other and has an inclination of 45 degrees with respect to the horizontal plane. Note that an attachment protrusion 35 that is engaged with the recess 20 is formed on the end surface of the retainer 27 facing the bracket 8 . Also.
リテーナ２７のブラケット８への固定は、固定用ねじ３
６により行なわれている。The retainer 27 is fixed to the bracket 8 using fixing screws 3.
This is done by 6.
このような構成において１作業テーブル７をガイド部２
に取付けた状態においては、負荷ガイド溝１９．２３内
に位置するボール３４はガイド溝１３．１４の内周面及
びガイド溝５，６の内周面に圧接されており、負荷が作
用している。一方、無負荷ガイド溝１６．２４及び旋回
溝２８．３０内に位置するボール３４には負荷が作用せ
ず、無負荷状態に維持されている。作業テーブル７を摺
動させると、ボール３４がガイド溝５，６及びガイド溝
１３，１４等に案内されて転動し、ボニル３４は負荷ガ
イド１ｌｌ１９，２３から一方の旋回溝２８．３０を通
って無負荷ガイド溝２４．１６へと移動し、再び他方の
旋回溝２８．３０を通って負荷ガイド溝１９，２３に循
環するにのように、ボール３４がボール循環路３２．３
３内を転動することにより作業テーブル７はベッド１上
に摺動自在に支持されたこととなり、作業テーブル７の
摺動が円滑に行なわ熟る。また、作業テーブル７に横方
向等からの力み作用しても、ボール３４がガイド部２の
両側の上下２列のガイド溝５，６に係合されており、作
業テーブル７の保持は確実に行なわれている。In such a configuration, one work table 7 is connected to the guide part 2.
When installed in the load guide groove 19.23, the ball 34 located in the load guide groove 19.23 is pressed against the inner circumferential surface of the guide groove 13.14 and the inner circumferential surfaces of the guide grooves 5 and 6. There is. On the other hand, no load is applied to the ball 34 located in the unloaded guide groove 16.24 and the pivot groove 28.30, and the ball 34 is maintained in an unloaded state. When the work table 7 is slid, the balls 34 are guided by the guide grooves 5, 6, 13, 14, etc. and roll, and the ball 34 is moved from the load guide 1ll19, 23 through one of the turning grooves 28, 30. The ball 34 moves into the ball circulation path 32.3 in such a way that it moves into the unloaded guide groove 24.16 and circulates again through the other pivot groove 28.30 to the loaded guide groove 19, 23.
3, the work table 7 is slidably supported on the bed 1, and the work table 7 slides smoothly. In addition, even if force is applied to the work table 7 from the lateral direction, the balls 34 are engaged with the upper and lower two rows of guide grooves 5 and 6 on both sides of the guide portion 2, and the work table 7 can be held securely. It is carried out in
ここで、第一のボール循環路３２と第二のボール循環路
３３とは水平面に対して４５°の傾きをもって傾斜する
とともに互いに直交する面内に設けられている。このた
め、ボールスライド部１０の高さ寸法を増大することな
く、しかも、ボールスライド部１０の横幅寸法を増大す
ることなく旋凹溝２８，３０の旋回半径を大きくとるこ
とが可能になり、旋回溝２８．３０におけるボール３４
の旋回が円滑に行なわれ、作業テーブル７の摺動がより
一層円滑になって作業能率が向上する。Here, the first ball circulation path 32 and the second ball circulation path 33 are provided in planes that are inclined at an angle of 45° with respect to the horizontal plane and are orthogonal to each other. Therefore, it is possible to increase the turning radius of the turning grooves 28 and 30 without increasing the height of the ball slide part 10 and without increasing the width of the ball slide part 10. Ball 34 in groove 28.30
The rotation of the work table 7 is performed smoothly, and the sliding movement of the work table 7 becomes even smoother, thereby improving work efficiency.
また、ガイド部２とブラケット７とはボール３４を介し
て４５″でアンギュラコンタクトしており、ボール循環
路３２．３３が水平面に対して４５°に傾いた面内に形
成されているため、負荷ガイド溝１９．２３から旋回溝
２８．３０へのボール３４の転勤がきわめてスムーズに
行なわれ、作業テーブル７の摺動がさらに円滑に行なわ
れる。In addition, the guide part 2 and the bracket 7 are in angular contact at 45'' via the ball 34, and the ball circulation paths 32 and 33 are formed in a plane inclined at 45 degrees with respect to the horizontal plane, so the load is The transfer of the ball 34 from the guide groove 19.23 to the pivot groove 28.30 takes place very smoothly, and the sliding movement of the working table 7 takes place even more smoothly.
つぎに、リテーナ２７における第一の旋回溝２８と第二
の旋回溝３０との形成は、まず、第一の旋回溝２８と取
付溝２９とを切削加工し、ついで、第二の旋回溝３０を
切削加工したリテーナ中子３１を取付溝２９に取付ける
ことにより行なわれる。Next, to form the first turning groove 28 and the second turning groove 30 in the retainer 27, first, the first turning groove 28 and the mounting groove 29 are cut, and then the second turning groove 30 is formed. This is done by attaching the retainer core 31, which has been machined, to the attachment groove 29.
したがって、複雑な作業工程が不要となり、旋回溝２８
，３０の形成を簡単に行なえる。Therefore, complicated work processes are not required, and the turning groove 28
, 30 can be easily formed.
ボール循環路３２．３３内へのボール３４の挿入に際し
ては、まず、ブラケット７に側部保持器１１とリテーナ
中子３１を取付けたリテーナ２７とを取付ける。この状
態においては、第一の無負荷ガイド溝２４と第二の負荷
ガイド溝２３とは略半分が開放されており、この開放部
分からボール３４の挿入を浦単に行なえる。必要な数の
ボール３４を挿入した後、下部保持器１２と底面シール
２６とをブラケット７に取付けてボール循環路３２．３
３内へのボール３４の挿入作業を終了する。When inserting the balls 34 into the ball circulation paths 32 and 33, first, the side retainer 11 and the retainer 27 to which the retainer core 31 is attached are attached to the bracket 7. In this state, approximately half of the first no-load guide groove 24 and the second load guide groove 23 are open, and the ball 34 can be easily inserted through this open portion. After inserting the required number of balls 34, the lower retainer 12 and the bottom seal 26 are attached to the bracket 7 to complete the ball circulation path 32.3.
The operation of inserting the ball 34 into the interior of the ball 34 is completed.
発明の効果
本発明は、上述のようにボールスライド部の両端部に取
付けられるリテーナを設け、このリテーナに第一の旋回
溝と取付溝とを形成し、第一の旋回溝とたすき掛け状に
略直交する第二の旋回溝を形成したリテーナ中子を取付
溝に取付けたことにより、リテーナにおける二つの旋回
溝の形成を簡単に行なうことができ、しかも、ボールス
ライド部の高さ寸法や横幅寸法を増大することなく旋回
溝の旋回半径を大きくとることができる等の効果を有す
る。Effects of the Invention The present invention provides a retainer that is attached to both ends of the ball slide part as described above, and a first pivot groove and a mounting groove are formed in this retainer, and the retainer is provided with a first pivot groove and a mounting groove that crosses the first pivot groove. By attaching the retainer core with the substantially orthogonal second turning groove formed to the mounting groove, it is possible to easily form two turning grooves in the retainer, and the height and width of the ball slide part can be easily formed. This has the effect that the turning radius of the turning groove can be increased without increasing the dimensions.
図面は本発明の一実施例を示すもので、第１図は縦断正
面図、第２図はリテーナを示す正面図、第３図は第２図
におけるＡ−Ａ線断面図、第４図は第２図におけるＢ−
Ｂ線断面図、第５図はリテーナ中子を示す斜視図、第６
図はリテーナ中子をリテーナに取付けた際の第２図にお
けるＢ−Ｂ線断面図、第７図は側部保持器を示す斜視図
、第８図は下部保持器を示す斜視図、第９図は底面シー
ルを示す斜視図、第１０図は工作機械全体を示す斜視図
である。
１・・・ベッド、２・・・ガイド部、３・・・傾斜面、
４・・凹部、５，６・・・ガイド溝、７・・・作業テー
ブル、８・・・ブラケット、９・・・ボールスライド部
、１６・・・第二の無負荷ガイド溝（ｐ、負荷ガイド溝
）、１９・・・第一の負荷ガイド溝（負荷ガイド溝）、
２３・・・第二の負荷ガイド溝（負荷ガイド溝）、２４
・・・第一の無負荷ガイド溝（無負荷ガイド溝）、２７
・・・リテーナ、２８・・・第一の旋回溝、２９・・・
取付溝、３０・・・第二の旋回溝、３１・・・リテーナ
中子３Ｚし
乙′
１３図 ３は■
］ ５し
１６図
α ｌ（The drawings show one embodiment of the present invention; FIG. 1 is a longitudinal sectional front view, FIG. 2 is a front view showing the retainer, FIG. 3 is a sectional view taken along line A-A in FIG. 2, and FIG. B- in Figure 2
5 is a perspective view showing the retainer core, and 6 is a sectional view taken along line B.
The figures are a sectional view taken along the line B-B in Fig. 2 when the retainer core is attached to the retainer, Fig. 7 is a perspective view showing the side retainer, Fig. 8 is a perspective view showing the lower retainer, and Fig. 9 is a perspective view showing the lower retainer. The figure is a perspective view showing the bottom seal, and FIG. 10 is a perspective view showing the entire machine tool. 1...Bed, 2...Guide part, 3...Slanted surface,
4... Recess, 5, 6... Guide groove, 7... Work table, 8... Bracket, 9... Ball slide part, 16... Second non-load guide groove (p, load guide groove), 19... first load guide groove (load guide groove),
23...Second load guide groove (load guide groove), 24
...First no-load guide groove (no-load guide groove), 27
...Retainer, 28...First turning groove, 29...
Mounting groove, 30...Second turning groove, 31...Retainer core 3Z'
Claims (1)
上下一対の傾斜面を有する凹部が形成された断面形状方
形のガイド部をベッド上に固定し、このガイド部の上面
と左右両側面とを囲むブラケットを作業テーブルの下面
に固定し、前記傾斜面にこの傾斜面の長手方向にそった
ガイド溝を形成し、前記ブラケットに前記凹部に対向す
るボールスライド部を設け、このボールスライド部に前
記ガイド溝に対向する上下一対の負荷ガイド溝とこれら
の負荷ガイド溝と略平行な上下一対の無負荷ガイド溝と
を形成し、前記ボールスライド部の両端部に取付けられ
るリテーナを設け、このリテーナに一方の前記負荷ガイ
ド溝と一方の前記無負荷ガイド溝との端部同志を水平面
に対して略４５゜の傾きをもってつなぐ円弧状の第一の
旋回溝を形成し、前記リテーナに前記第一の旋回溝より
浅い取付溝を形成し、他方の前記負荷ガイド溝と他方の
前記無負荷ガイド溝との端部同志をつなぐとともに前記
第一の旋回溝とたすき掛け状に略直交する円弧状の第二
の旋回溝を形成したリテーナ中子を前記取付溝に取付け
たことを特徴とするボールスライドウェイ。A guide part with a rectangular cross-section in which a concave part with a pair of upper and lower inclined surfaces that expands outward is formed on both left and right sides along the longitudinal direction is fixed on the bed, and the upper surface of this guide part and both left and right sides are fixed to the bed. A bracket surrounding the surface is fixed to the lower surface of the work table, a guide groove is formed in the slope along the longitudinal direction of the slope, a ball slide part is provided in the bracket facing the recess, and the ball slide A pair of upper and lower load guide grooves facing the guide grooves and a pair of upper and lower non-load guide grooves substantially parallel to these load guide grooves are formed in the part, and retainers are provided to be attached to both ends of the ball slide part, A first arc-shaped turning groove is formed in this retainer, connecting the end portions of one of the load guide grooves and one of the non-load guide grooves at an inclination of approximately 45° with respect to the horizontal plane. A mounting groove shallower than the first turning groove is formed, and a circle that connects the ends of the other load guide groove and the other no-load guide groove and is substantially orthogonal to the first turning groove in a cross-shaped manner. A ball slideway characterized in that a retainer core in which an arc-shaped second turning groove is formed is attached to the attachment groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61163384A JPS6322240A (en) | 1986-07-11 | 1986-07-11 | Ball slideway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61163384A JPS6322240A (en) | 1986-07-11 | 1986-07-11 | Ball slideway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6322240A true JPS6322240A (en) | 1988-01-29 |
Family
ID=15772862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61163384A Pending JPS6322240A (en) | 1986-07-11 | 1986-07-11 | Ball slideway |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6322240A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02163510A (en) * | 1988-12-19 | 1990-06-22 | Nippon Thompson Co Ltd | Direct operated rolling guide unit |
-
1986
- 1986-07-11 JP JP61163384A patent/JPS6322240A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02163510A (en) * | 1988-12-19 | 1990-06-22 | Nippon Thompson Co Ltd | Direct operated rolling guide unit |
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