JPH0560657A - Apparatus for measuring pitch of outer ring races of double row ball bearing - Google Patents
Apparatus for measuring pitch of outer ring races of double row ball bearingInfo
- Publication number
- JPH0560657A JPH0560657A JP24642291A JP24642291A JPH0560657A JP H0560657 A JPH0560657 A JP H0560657A JP 24642291 A JP24642291 A JP 24642291A JP 24642291 A JP24642291 A JP 24642291A JP H0560657 A JPH0560657 A JP H0560657A
- Authority
- JP
- Japan
- Prior art keywords
- outer ring
- holder
- pressing rod
- holder cylinder
- peripheral surface
- 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
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明に係る複列玉軸受の外輪
軌道のピッチを測定する装置は、単一の外輪の内周面
に、互いに間隔をあけて形成された、１対の外輪軌道の
ピッチを測定する為に利用する。BACKGROUND OF THE INVENTION A device for measuring the pitch of an outer ring raceway of a double row ball bearing according to the present invention is a pair of outer ring raceways formed on the inner peripheral surface of a single outer ring at intervals. It is used to measure the pitch of.
【０００２】[0002]
【従来の技術】ビデオテープレコーダ等の各種電気機械
器具、測定機械器具、或は各種一般機械器具に於いて、
ハウジングの内側に回転軸を支承する為、或は支持軸の
外側に回転体を支承する為に、図６（Ａ）（Ｂ）に示す
様な複列玉軸受１が、従来から広く使用されている。こ
の複列玉軸受１は何れも、内周面に複列の外輪軌道２、
２を有する外輪３と、それぞれの外周面に単列の内輪軌
道４を有する内輪５、５と、上記外輪軌道２、２と内輪
軌道４、４との間にそれぞれ複数個ずつ、転動自在に設
けられた玉６、６とから構成されている。2. Description of the Related Art In various electric machines such as video tape recorders, measuring machines, and various general machines,
Conventionally, a double row ball bearing 1 as shown in FIGS. 6A and 6B has been widely used to support a rotary shaft inside a housing or a rotary body outside a support shaft. ing. Each of these double-row ball bearings 1 has a double-row outer ring raceway 2 on its inner peripheral surface.
An outer ring 3 having two, inner rings 5 and 5 having a single row of inner ring raceways 4 on their outer peripheral surfaces, and a plurality of rolling members between the outer ring raceways 2 and 2 and the inner ring raceways 4 and 4, respectively. It is composed of balls 6, 6.
【０００３】図６（Ａ）（Ｂ）に示した２種類の複列玉
軸受１は何れも、上記複数の玉６、６が上記外輪軌道
２、２に当接する部分（接触楕円）の中心と、同じく上
記複数の玉６、６が内輪軌道４、４に当接する部分の中
心とを結ぶ直線ａ、ａを、外輪３及び内輪５の直径方向
に対し傾斜させる事で、接触角θを持たせている。この
結果、上記複列玉軸受１は何れも、外輪３と内輪５との
間に加わるラジアル荷重の他、両部材３、５の間に加わ
るスラスト荷重も支持する。In both of the two types of double-row ball bearings 1 shown in FIGS. 6A and 6B, the center of a portion (contact ellipse) where the plurality of balls 6 contact the outer ring raceways 2 and 2. Also, by similarly inclining the straight lines a, connecting the centers of the portions where the plurality of balls 6, 6 come into contact with the inner ring raceways 4, 4, with respect to the diameter direction of the outer ring 3 and the inner ring 5, the contact angle θ I have it. As a result, each of the double-row ball bearings 1 supports not only the radial load applied between the outer ring 3 and the inner ring 5 but also the thrust load applied between the members 3, 5.
【０００４】尚、図６に示した２種類の複列玉軸受１の
内、同図（Ａ）に示したものは、１対の内輪５、５を、
肩部７、７（外径の大きくなった部分）を互いに反対側
に向ける事により、上記直線ａ、ａ同士の間隔が、外側
に向かう程狭くなる様にしたもの、同図（Ｂ）に示した
ものは、上記１対の内輪５、５を、肩部７、７同士を突
き合わせた状態で組み合わせる事により、上記直線ａ、
ａ同士の間隔が、内側に向かう程狭くなる様にしたもの
である。Of the two types of double-row ball bearings 1 shown in FIG. 6, the one shown in FIG. 6A has a pair of inner rings 5, 5.
By arranging the shoulders 7, 7 (portions having a larger outer diameter) toward the opposite sides, the distance between the straight lines a, a becomes narrower toward the outside, as shown in FIG. What is shown is that by combining the pair of inner rings 5 and 5 with the shoulder portions 7 and 7 abutting each other, the straight line a,
The distance between a is narrowed toward the inside.
【０００５】ところで、上述の様に構成される複列玉軸
受１に、所望の性能を発揮させる為には、外輪軌道２、
２同士のピッチ（前記複数の玉６、６が、上記外輪軌道
２、２に当接する部分（前記接触楕円）の中心同士の距
離）、並びに、内輪軌道４、４同士のピッチ（前記複数
の玉６、６が、上記内輪軌道４、４に当接する部分の中
心同士の距離）を正確に求め、これらピッチが所望値と
異なった場合には、その誤差を複列玉軸受の製造ライン
にフィードバックする事で、上記ピッチを所望値にする
事が必要である。By the way, in order to make the double row ball bearing 1 constructed as described above exhibit desired performance, the outer ring raceway 2,
Two pitches (distance between centers of portions (contact ellipses) where the plurality of balls 6 and 6 contact the outer ring raceways 2 and 2), and inner ring raceways 4 and 4 pitches (the plurality of the plurality of balls 6 and 6). The distances between the centers of the parts where the balls 6 and 6 contact the inner ring raceways 4 and 4 are accurately determined. If these pitches differ from the desired values, the error is transferred to the double-row ball bearing production line. It is necessary to set the above pitch to a desired value by feeding back.
【０００６】上記ピッチを測定する方法や装置に就いて
は、従来から種々の方法及び装置が提案され、一部使用
されているが、外輪軌道２、２同士のピッチを測定する
装置として、例えば特開昭５８−１２２４４２号公報に
は、図７に示す様な測定装置が記載されている。Regarding the above method and apparatus for measuring the pitch, various methods and apparatuses have been proposed in the past and are partially used. As an apparatus for measuring the pitch between the outer ring raceways 2 and 2, for example, Japanese Patent Laid-Open No. 58-122442 discloses a measuring device as shown in FIG.
【０００７】この測定装置は、直径方向に亙る若干の変
位を自在として、１対の環状の保持器８、８にそれぞれ
複数個ずつ保持された玉９、９と、それぞれの端部外周
面に内輪軌道の如き傾斜面１０、１０を形成し、互いに
遠近動自在な１対の押し付け部材１１、１１と、一方
（図７の上方）の押し付け部材１１の中心部に設けたロ
ッド１２を介して、上記１対の押し付け部材１１、１１
同士の間隔を測定する、コンパレータ１３とから構成さ
れる。This measuring device allows slight displacement in the diametrical direction, and a plurality of balls 9 and 9 respectively held by a pair of annular cages 8 and 8 and the outer peripheral surface of each end. Through a pair of pressing members 11 and 11 that form inclined surfaces 10 and 10 such as inner ring raceways and are movable in a forward and backward direction, and a rod 12 provided at the center of one pressing member 11 (upper side in FIG. 7). , The pair of pressing members 11, 11
It is composed of a comparator 13 that measures the interval between the two.
【０００８】上述の様な構成を有する測定装置により、
外輪軌道２、２のピッチＰを求める場合、上記各押し付
け部材１１、１１の傾斜面１０、１０と外輪軌道２、２
との間で、それぞれ保持器８により保持された複数の玉
９、９を挟持した状態で、コンパレータ１３により上記
ロッド１２を介して、上記１対の押し付け部材１１、１
１の間隔を測定する事により、１対の押し付け部材１
１、１１同士の間隔を求め、この間隔から、上記外輪軌
道２、２のピッチＰを求める。実際の場合には、ピッチ
Ｐが予め解った外輪（標準品）を図７に示した装置にセ
ットし、上記コンパレータ１３の指示値を記録してお
く。そして、この記録した値と、上記ピッチＰを求める
べき外輪３（被測定品）を図７に示した装置にセットし
た場合に於ける、上記コンパレータ１３の指示値とを比
較する（加減する）事で、上記被測定品のピッチＰを求
める。With the measuring device having the above-mentioned structure,
When obtaining the pitch P of the outer ring raceways 2 and 2, the inclined surfaces 10 and 10 of the pressing members 11 and 11 and the outer ring raceways 2 and 2 are
And a plurality of balls 9, 9 respectively held by a retainer 8, are sandwiched between the pair of pressing members 11, 1 by a comparator 13 via the rod 12.
By measuring the interval of 1, the pair of pressing members 1
The pitch between the outer ring raceways 2 and 2 is determined from the spacing between 1 and 11. In an actual case, an outer ring (standard product) whose pitch P is known beforehand is set in the device shown in FIG. 7, and the indicated value of the comparator 13 is recorded. Then, this recorded value is compared with (increases / decreases) the instruction value of the comparator 13 when the outer ring 3 (measurement object) for which the pitch P is to be obtained is set in the device shown in FIG. Then, the pitch P of the above-mentioned DUT is obtained.
【０００９】[0009]
【発明が解決しようとする課題】ところが、上述の様に
して複列玉軸受１の外輪軌道２、２同士のピッチＰを求
める場合、図６（Ａ）に示す様に、外輪３の内径が、各
外輪軌道２、２よりも開口端寄り部分で大きくなってい
る構造の場合には良いが、同図（Ｂ）、或は次述する図
８（Ａ）（Ｂ）に示す様に、外輪３の内径が、各外輪軌
道２、２よりも開口端寄り部分で小さくなっている構造
の場合には、前記保持器８に保持された複数の玉９、９
を、外輪軌道２、２に当接させる事が出来ず、上記ピッ
チＰを測定出来ない。However, when the pitch P between the outer ring raceways 2 and 2 of the double-row ball bearing 1 is obtained as described above, the inner diameter of the outer ring 3 is determined as shown in FIG. 6 (A). It is good for a structure in which the outer ring raceways 2, 2 are larger at the opening end portions than the outer ring raceways 2, 2, but as shown in FIG. 8B or the following FIGS. 8A and 8B, In the case of a structure in which the inner diameter of the outer ring 3 is smaller than the outer ring raceways 2, 2 at the portions closer to the opening ends, the plurality of balls 9, 9 held by the cage 8 are provided.
Cannot be brought into contact with the outer ring raceways 2, 2 and the pitch P cannot be measured.
【００１０】即ち、近年図８（Ａ）（Ｂ）に示す様に、
単一の内輪相当部材である軸１４の外周面に、それぞれ
が深溝型の複列の内輪軌道１５、１５を、円筒状の外輪
１６の内周面に、やはり深溝型の外輪軌道１７、１７
を、それぞれ形成した複列玉軸受１８が、一部で使用さ
れる様になっている。図８（Ａ）（Ｂ）に示した２種類
の複列玉軸受１８の内、同図（Ａ）に示したものは、接
触角の方向を前記図６（Ａ）に示した複列玉軸受１と同
様にしたもの、同図（Ｂ）に示したものは、接触角の方
向を前記図６（Ｂ）と同様にしたものである。That is, recently, as shown in FIGS. 8 (A) and 8 (B),
On the outer peripheral surface of the shaft 14 which is a single inner ring equivalent member, deep groove type double row inner ring raceways 15 and 15 are respectively provided, and on the inner peripheral surface of the cylindrical outer ring 16, also deep groove type outer ring raceways 17 and 17 are provided.
The double-row ball bearings 18 formed respectively are used in part. Of the two types of double-row ball bearings 18 shown in FIGS. 8 (A) and 8 (B), the one shown in FIG. 8 (A) is a double-row ball whose contact angle direction is shown in FIG. 6 (A). The bearing 1 and that shown in FIG. 6B have the same contact angle direction as that shown in FIG. 6B.
【００１１】この様に、外輪１６の内周面に形成され
た、深溝型の外輪軌道１７、１７のピッチＰ1 、Ｐ2 を
測定する場合、前記図７に示した様に、保持器８により
保持された複数の玉９、９を、各外輪軌道１７、１７に
突き合わせる事が出来ない。前記図６（Ｂ）に示した形
状の外輪の場合も同様である。In this way, when the pitches P 1 and P 2 of the deep groove type outer ring raceways 17 formed on the inner peripheral surface of the outer ring 16 are measured, as shown in FIG. It is not possible to abut the plurality of balls 9, 9 held by the outer ring raceways 17, 17 with each other. The same applies to the case of the outer ring having the shape shown in FIG. 6 (B).
【００１２】本発明の複列玉軸受の外輪軌道のピッチを
測定する装置は、上述の様な外輪の内周面に形成された
複列の外輪軌道のピッチを求められる様にする事で、上
述の様な不都合を解消するものである。The apparatus for measuring the pitch of the outer ring raceway of the double-row ball bearing of the present invention can obtain the pitch of the double-row outer ring raceway formed on the inner peripheral surface of the outer ring as described above. The inconvenience as described above is eliminated.
【００１３】[0013]
【課題を解決するための手段】本発明の複列玉軸受の外
輪軌道のピッチを測定する装置は、外輪相当部材の内周
面に形成された複列の外輪軌道と、内輪相当部材の外周
面に形成された複列の内輪軌道との間に、それぞれ複数
個の玉を転動自在に装着して成る複列玉軸受を構成する
複数の玉が、上記外輪軌道に当接する部分の中心同士の
距離を測定するものである。A device for measuring the pitch of an outer ring raceway of a double row ball bearing according to the present invention comprises a double row outer ring raceway formed on an inner peripheral surface of an outer ring equivalent member and an outer circumference of an inner ring equivalent member. The center of the portion where a plurality of balls forming a double-row ball bearing, each of which is rotatably mounted on the inner ring raceway of the double row formed on the surface, contact the outer ring raceway. It measures the distance between each other.
【００１４】この様な本発明の複列玉軸受の外輪軌道の
ピッチを測定する装置は、上記外輪相当部材の片半部の
内側に挿入自在な第一ホルダ筒と、この第一ホルダ筒の
一部で、上記外輪相当部材の内周面に形成された複列の
外輪軌道の内、一方の外輪軌道と対向し得る部分の円周
方向３箇所以上に形成された第一ホルダ孔と、上記第一
ホルダ筒の直径方向に亙る変位を自在として、各第一ホ
ルダ孔の内側に保持された複数の第一玉と、外周面を軸
方向に亙って外径が変化する第一傾斜面とし、上記第一
ホルダ筒の内側に、軸方向に亙る変位を自在として設け
られた第一押し付けロッドと、この第一押し付けロッド
を軸方向に亙って変位させる為の変位機構と、上記第一
ホルダ筒と同軸上に設けられ、上記外輪相当部材の他半
部の内側に挿入自在な第二ホルダ筒と、この第二ホルダ
筒の一部で、上記外輪相当部材の内周面に形成された複
列の外輪軌道の内、他方の外輪軌道と対向し得る部分の
円周方向３箇所以上に形成された第二ホルダ孔と、上記
第二ホルダ筒の直径方向に亙る変位を自在として、各第
二ホルダ孔の内側に保持された複数の第二玉と、外周面
を軸方向に亙って外径が変化する第二傾斜面とし、上記
第二ホルダ筒の内側に、軸方向に亙る変位を自在として
設けられた第二押し付けロッドと、上記第二ホルダ筒及
び第二押し付けロッドを、上記第一ホルダ筒及び第一押
し付けロッドに対して遠近動させる為の駆動機構と、上
記第一押し付けロッドと第二押し付けロッドとの距離を
測定する為の測距手段とから構成される。The apparatus for measuring the pitch of the outer ring raceway of the double-row ball bearing of the present invention as described above is provided with a first holder cylinder that can be inserted inside one half of the member corresponding to the outer ring, and the first holder cylinder. First holder holes formed in three or more portions in the circumferential direction of a part of the double-row outer ring raceway formed on the inner peripheral surface of the outer ring equivalent member, which may face one outer ring raceway, A plurality of first balls held inside each of the first holder holes and a first inclination in which the outer diameter changes along the outer peripheral surface in the axial direction so that the first holder cylinder can be freely displaced in the diameter direction. A first pressing rod provided as a surface inside the first holder cylinder so as to be freely displaced in the axial direction, a displacement mechanism for displacing the first pressing rod in the axial direction, and It is provided coaxially with the first holder cylinder and is inserted inside the other half of the member equivalent to the outer ring. A second holder cylinder and a part of this second holder cylinder in a circumferential direction of a portion of the double row outer ring raceway formed on the inner peripheral surface of the outer ring equivalent member, which portion may face the other outer ring raceway. Second holder holes formed at three or more locations, a plurality of second balls held inside each of the second holder holes to allow displacement in the diameter direction of the second holder cylinder, and an outer peripheral surface as an axis. A second pressing rod that has a second inclined surface whose outer diameter changes in the direction, and is provided inside the second holder cylinder so as to be freely displaced in the axial direction, the second holder cylinder, and the second holder cylinder. A drive mechanism for moving the pressing rod into and out of the first holder cylinder and the first pressing rod, and distance measuring means for measuring the distance between the first pressing rod and the second pressing rod. To be done.
【００１５】[0015]
【作用】上述の様に構成される、本発明の複列玉軸受の
外輪軌道のピッチを測定する装置により、外輪相当部材
の外周面に形成された複列の外輪軌道のピッチを測定す
る場合、次の様にして行なう。When the device for measuring the pitch of the outer ring raceway of the double-row ball bearing of the present invention configured as described above is used to measure the pitch of the double-row outer ring raceway formed on the outer peripheral surface of the member corresponding to the outer ring. , As follows.
【００１６】先ず、第一押し付けロッドを軸方向一端側
に変位させ、第一ホルダ筒の複数の第一ホルダ孔の内側
に保持された第一玉を、この第一ホルダ孔の内側で、上
記第一ホルダ筒の直径方向内側に変位させた状態で、上
記第一ホルダ筒を上記外輪相当部材の片半部に挿入す
る。そして、この外輪相当部材の内周面に形成された複
列の外輪軌道の内、上記片半部に形成された一方の外輪
軌道を、上記複数の第一ホルダ孔に整合させる。この
際、駆動機構により第二ホルダ筒を、第一ホルダ筒から
遠ざけて、この第二ホルダ筒が外輪相当部材の内側に第
一ホルダ筒を挿入する作業の妨げとならない様にしてお
く。First, the first pressing rod is displaced to the one end side in the axial direction, and the first balls held inside the plurality of first holder holes of the first holder cylinder are inserted into the inside of the first holder holes as described above. The first holder cylinder is inserted into one half of the outer ring equivalent member while being displaced inward in the diametrical direction of the first holder cylinder. Then, of the double row outer ring raceways formed on the inner peripheral surface of the outer ring equivalent member, one outer ring raceway formed on the one half is aligned with the plurality of first holder holes. At this time, the second holder cylinder is moved away from the first holder cylinder by the drive mechanism so that the second holder cylinder does not interfere with the work of inserting the first holder cylinder inside the member corresponding to the outer ring.
【００１７】次いで、上記第一押し付けロッドを軸方向
他端側に変位させて、この第一押し付けロッド外周面の
第一傾斜面により、上記複数の第一玉を各第一ホルダ孔
の内側で、上記第一ホルダ筒の直径方向外側に変位さ
せ、各第一玉を、上記一方の外輪軌道に押し付ける。Next, the first pressing rod is displaced to the other end side in the axial direction, and the plurality of first balls are moved inside the first holder holes by the first inclined surface of the outer peripheral surface of the first pressing rod. , Is displaced outward in the diametrical direction of the first holder cylinder, and each first ball is pressed against the one outer ring raceway.
【００１８】これと共に、この第一ホルダ筒から遠ざけ
られていた第二ホルダ筒を、上記駆動機構によって第一
ホルダ筒に近付ける。この際、第二押し付けロッドを、
上記第二ホルダ筒に対し軸方向他端側に変位させて、上
記第二ホルダ筒の複数の第二ホルダ孔の内側に保持され
た第二玉を、この第二ホルダ孔の内側で、上記第二ホル
ダ筒の直径方向内側に変位させておく。この状態で上記
第二ホルダ筒を上記第一ホルダ筒に近付ける事により、
この第二ホルダ筒が上記外輪相当部材の他半部に挿入さ
れる。そこで、この外輪相当部材の内周面に形成された
複列の外輪軌道の内、上記他半部に形成された他方の外
輪軌道を、上記複数の第二ホルダ孔に整合させる。At the same time, the second holder cylinder, which is kept away from the first holder cylinder, is brought closer to the first holder cylinder by the drive mechanism. At this time, the second pressing rod,
The second ball held inside the plurality of second holder holes of the second holder cylinder by being displaced to the other end side in the axial direction with respect to the second holder cylinder, inside the second holder hole, It is displaced inward in the diametrical direction of the second holder cylinder. In this state, by bringing the second holder cylinder close to the first holder cylinder,
The second holder cylinder is inserted into the other half of the member corresponding to the outer ring. Therefore, of the double row outer ring raceways formed on the inner peripheral surface of the outer ring equivalent member, the other outer ring raceway formed on the other half is aligned with the plurality of second holder holes.
【００１９】次いで、上記第二押し付けロッドを、上記
第二ホルダ筒に対し、軸方向一端側に変位させて、この
第二押し付けロッド外周面の第二傾斜面により、上記複
数の第二玉を各第二ホルダ孔の内側で、第二ホルダ筒の
直径方向外側に変位させ、各第二玉を、上記他方の外輪
軌道に押し付ける。Next, the second pressing rod is displaced toward the one end side in the axial direction with respect to the second holder cylinder, and the plurality of second balls are moved by the second inclined surface of the outer peripheral surface of the second pressing rod. Inside each second holder hole, it is displaced to the outside in the diametrical direction of the second holder cylinder, and each second ball is pressed against the other outer ring raceway.
【００２０】この様にして、複数の第一玉を一方の外輪
軌道に、複数の第二玉を他方の外輪軌道に、それぞれ押
し付けた状態で、上記駆動機構により、第一押し付けロ
ッドと第二押し付けロッドとを軸方向に亙り相対的に移
動させて、上記第一玉と第二玉とを、それぞれ外輪軌道
に押し付ける。上記第一玉を一方の外輪軌道に押し付け
ている第一傾斜面と、上記第二玉を他方の外輪軌道に押
し付けている第二傾斜面とは、それぞれ複列玉軸受を構
成する内輪外周面の内輪軌道と同様に傾斜している為、
上記第一玉と第二玉とは、それぞれの外輪軌道に対して
所定の接触角で接触する。In this manner, the plurality of first balls are pressed against one outer ring raceway and the plurality of second balls are pressed against the other outer ring raceway, respectively. The pressing rod is relatively moved in the axial direction, and the first ball and the second ball are pressed against the outer ring raceways. The first inclined surface pressing the first ball to one outer ring raceway and the second inclined surface pressing the second ball to the other outer ring raceway are the inner ring outer peripheral surface constituting the double-row ball bearing, respectively. Because it is inclined like the inner ring track of
The first ball and the second ball contact each outer ring raceway at a predetermined contact angle.
【００２１】そこで、測距手段により、上記第一押し付
けロッドと第二押し付けロッドとの距離を測定する。こ
の様な距離測定作業は、予め複列の外輪軌道のピッチが
解った外輪相当部材（標準品）で行なって、上記測距手
段の指示値を記録しておく。そして、この記録した値
と、上記ピッチを求めるべき外輪相当部材（被測定品）
を本発明装置にセットした場合に於ける、上記測距手段
の指示値とを比較する（加減する）事で、上記被測定品
のピッチを求める。Therefore, the distance measuring means measures the distance between the first pressing rod and the second pressing rod. Such a distance measuring operation is performed in advance by a member corresponding to the outer ring (standard product) in which the pitches of the outer ring raceways of the double row are known, and the indicated value of the distance measuring means is recorded. Then, the recorded value and the member corresponding to the outer ring for which the pitch is to be obtained (measurement object)
When set to the device of the present invention, the pitch of the object to be measured is determined by comparing (adjusting) with the indicated value of the distance measuring means.
【００２２】[0022]
【実施例】図１〜４は本発明の第一実施例を示してい
る。鉛直壁１９の下部前面に、駆動機構である第一エア
シリンダ２８の働きにより昇降自在に設けられた、下部
ホルダ２０の上面には、円筒状の第一ホルダ筒保持器２
１を固定している。そして、この第一ホルダ筒保持器２
１の上端部内周縁に形成した係止溝２２内に、第一ホル
ダ筒２３の下端部に形成した係止鍔部２４を係合させて
いる。この第一ホルダ筒２３は、その内周面に複列の外
輪軌道１７、１７を形成した、外輪１６の下半部に挿入
自在な外径を有する。1 to 4 show a first embodiment of the present invention. A cylindrical first holder cylinder holder 2 is provided on the upper surface of the lower holder 20, which is provided on the lower front surface of the vertical wall 19 so as to be movable up and down by the action of the first air cylinder 28 which is a drive mechanism.
1 is fixed. And this first holder cylinder holder 2
A locking collar 24 formed at the lower end of the first holder cylinder 23 is engaged in the locking groove 22 formed at the inner peripheral edge of the upper end of the first holder cylinder 23. The first holder cylinder 23 has an outer diameter such that it can be inserted into the lower half portion of the outer ring 16 and has a plurality of rows of outer ring raceways 17, 17 formed on the inner peripheral surface thereof.
【００２３】上記第一ホルダ筒２３の上部で、上記外輪
１６の内周面に形成された複列の外輪軌道１７、１７の
内、下方の外輪軌道１７と対向し得る部分の円周方向３
箇所以上（例えば６個所）には第一ホルダ孔２５、２５
を、互いに等間隔に形成している。それぞれが円形の第
一ホルダ孔２５、２５は、直径方向内方に向かう程下方
に向かう方向に傾斜させている。そして、この様な各第
一ホルダ孔２５、２５内に第一玉２６、２６を、それぞ
れ１個ずつ保持している。In the upper part of the first holder cylinder 23, among the double-row outer ring raceways 17, 17 formed on the inner peripheral surface of the outer ring 16, a portion which can face the lower outer ring raceway 3 in the circumferential direction 3.
The first holder holes 25, 25 are provided above the location (eg, 6 locations).
Are formed at equal intervals. The circular first holder holes 25, 25 are inclined downward in the diametrical direction. Then, one first ball 26, 26 is held in each such first holder hole 25, 25.
【００２４】各第一玉２６、２６は、前記図８の複列玉
軸受１８に組み込まれた玉６、６と同じものを使用し、
上記各第一ホルダ孔２５、２５内に、上記第一ホルダ筒
２３の直径方向に亙る変位を自在として保持されてい
る。但し、上述の様に上記各第一ホルダ孔２５、２５
は、上記第一ホルダ筒２３の直径方向内方に向かう程下
方に向かう方向に傾斜している為、外力（具体的には、
後述する第一押し付けロッド２７による押圧力）が働か
ない限り、図２に示す様に内方に変位して、第一ホルダ
筒２３の外周面から突出する事はない。The first balls 26, 26 are the same as the balls 6, 6 incorporated in the double-row ball bearing 18 shown in FIG.
In each of the first holder holes 25, 25, the first holder cylinder 23 is held so as to be freely displaceable in the diametrical direction. However, as described above, each of the first holder holes 25, 25
Is inclined downward in the diametrically inward direction of the first holder cylinder 23, so that an external force (specifically,
As long as a pressing force by a first pressing rod 27, which will be described later, does not work, it does not displace inward and project from the outer peripheral surface of the first holder cylinder 23 as shown in FIG.
【００２５】又、前記下部ホルダ２０には、変位機構で
ある第二エアシリンダ２９を設け、この第二エアシリン
ダ２９の出力ロッドの上端部に、ホルダ３０を固定して
いる。一方、前記第一押し付けロッド２７の中心部に設
け、この第一押し付けロッド２７の下面に開口した有底
の円孔３１には支持棒３２を挿入し、この支持棒３２の
上端部を上記円孔３１の奥面に突き当てる事で、上記支
持棒３２に対して上記第一押し付けロッド２７を、若干
の揺動自在に支持している。Further, the lower holder 20 is provided with a second air cylinder 29 which is a displacement mechanism, and the holder 30 is fixed to the upper end portion of the output rod of the second air cylinder 29. On the other hand, a support rod 32 is inserted into a bottomed circular hole 31 provided at the center of the first pressing rod 27 and opened in the lower surface of the first pressing rod 27, and the upper end of the supporting rod 32 is set to the above-mentioned circle. By abutting against the inner surface of the hole 31, the first pressing rod 27 is supported to the support rod 32 so as to be slightly swingable.
【００２６】又、上記支持棒３２の下端部に設けた鍔部
３３の下面と、上記ホルダ３０の内側上面との間には圧
縮ばね３４を設けて、上記支持棒３２を介して第一押し
付けロッド２７に、上方に向かう弾力を付与している。
但し、ホルダ３０の上端開口部内周縁に形成した庇部３
５と、第一押し付けロッド２７の下端部に形成した鍔部
３６との係合により、この第一押し付けロッド２７がホ
ルダ３０から抜け出るのを防止している。尚、上記圧縮
ばね３４は、図８に示した複列玉軸受１８に於いて、各
玉６、６に付与される予圧に見合う弾力を有する。Further, a compression spring 34 is provided between the lower surface of the flange 33 provided at the lower end of the support rod 32 and the inner upper surface of the holder 30, and the first pressing force is applied via the support rod 32. The rod 27 is provided with an upward resilience.
However, the eaves portion 3 formed on the inner peripheral edge of the upper opening of the holder 30.
5 and the flange portion 36 formed on the lower end portion of the first pressing rod 27 prevent the first pressing rod 27 from coming out of the holder 30. The compression spring 34 has an elastic force commensurate with the preload applied to the balls 6 in the double-row ball bearing 18 shown in FIG.
【００２７】上記第一押し付けロッド２７の上端部外周
面は、軸方向、即ち上下方向に亙って外径が変化し、上
方に向かう程外径が小さくなる第一傾斜面３７としてい
る。この第一傾斜面３７の下端部には、前記図８の複列
玉軸受１８に組み込まれた軸１４外周面の内輪軌道１５
と同様の、第一基準押圧面３８を形成している。The outer peripheral surface of the upper end portion of the first pressing rod 27 is a first inclined surface 37 whose outer diameter changes in the axial direction, that is, in the vertical direction, and the outer diameter decreases toward the upper side. At the lower end of the first inclined surface 37, the inner ring raceway 15 of the outer peripheral surface of the shaft 14 incorporated in the double-row ball bearing 18 of FIG.
The first reference pressing surface 38 similar to the above is formed.
【００２８】一方、前記第一ホルダ筒保持器２１の上部
には下部外輪受３９を、昇降自在に外嵌している。この
下部外輪受３９の内周面中間部には内向フランジ部４５
を形成し、この内向フランジ部４５の上面に、被測定品
である外輪１６を、載置自在としている。On the other hand, a lower outer ring receiver 39 is fitted on the upper part of the first holder cylinder holder 21 so as to be vertically movable. An inward flange portion 45 is provided in the middle portion of the inner peripheral surface of the lower outer ring bearing 39.
The outer ring 16 which is the object to be measured can be placed on the upper surface of the inward flange portion 45.
【００２９】そして、この下部外輪受３９の下面と上記
第一ホルダ筒保持器２１外周面の段部４０との間に圧縮
ばね４１を設け、上記下部外輪受３９に、上方に向かう
弾力を付与している。又、前記下部ホルダ２０の先端部
上面には第三エアシリンダ４２を設け、この第三エアシ
リンダ４２の出力ロッドの上端部に固定した抑え駒４３
の先端部を、上記下部外輪受３９の下端部外周縁に形成
した鍔部４４の上縁に当接自在としている。従って、上
記下部外輪受３９は、上記第三エアシリンダ４２の作動
に基づき、上記圧縮ばね４１の弾力に抗して下降自在で
ある。A compression spring 41 is provided between the lower surface of the lower outer ring bearing 39 and the step portion 40 on the outer peripheral surface of the first holder cylinder holder 21 to give upward elasticity to the lower outer ring bearing 39. is doing. Further, a third air cylinder 42 is provided on the upper surface of the tip of the lower holder 20, and a pressing piece 43 fixed to the upper end of the output rod of the third air cylinder 42.
Of the lower outer ring receiver 39 is allowed to come into contact with the upper edge of the flange 44 formed on the outer peripheral edge of the lower end portion of the lower outer ring receiver 39. Therefore, the lower outer ring bearing 39 can be lowered against the elastic force of the compression spring 41 based on the operation of the third air cylinder 42.
【００３０】一方、前記鉛直壁１９の上部には、上部ホ
ルダ４６を固定している。そして、この上部ホルダ４６
の先端部に第二押し付けロッド４７を、前記第一押し付
けロッド２７と同心に、支持固定している。On the other hand, an upper holder 46 is fixed to the upper portion of the vertical wall 19. And this upper holder 46
A second pressing rod 47 is concentrically supported and fixed to the tip of the first pressing rod 27.
【００３１】上記第二押し付けロッド４７に設けられた
大径の基端部４８には、円筒状の第二ホルダ筒保持器４
９の上端部を、外嵌固定している。そしてこの第二ホル
ダ筒保持器４９の内側に、第二ホルダ筒５０を、昇降自
在に保持している。即ち、この第二ホルダ筒５０の上端
部外周縁に形成した鍔部６６を、上記第二ホルダ筒保持
器４９の内側に、昇降自在に係合させている。At the large-diameter base end portion 48 provided on the second pressing rod 47, the cylindrical second holder cylinder holder 4 is attached.
The upper end of 9 is externally fitted and fixed. The second holder cylinder 50 is held inside the second holder cylinder holder 49 so as to be vertically movable. That is, the flange portion 66 formed on the outer peripheral edge of the upper end portion of the second holder cylinder 50 is engaged with the inside of the second holder cylinder holder 49 so as to be able to move up and down.
【００３２】そして、上記第二ホルダ筒保持器４９の下
端縁から突出した、上記第二ホルダ筒５０の下端部分
で、前記外輪１６の内周面に形成された複列の外輪軌道
１７、１７の内、上方の外輪軌道１７と対向し得る部分
の円周方向３箇所以上（例えば６個所）に、第二ホルダ
孔５１、５１を、互いに等間隔に形成している。それぞ
れが円形の第二ホルダ孔５１、５１は、前記第一ホルダ
孔２５、２５と同様に、直径方向内方に向かう程下方に
向かう方向に傾斜させている。そして、この様な各第二
ホルダ孔５１、５１内に第二玉５２、５２を、それぞれ
１個ずつ保持している。Then, at the lower end portion of the second holder cylinder 50 protruding from the lower end edge of the second holder cylinder holder 49, the double row outer ring raceways 17, 17 formed on the inner peripheral surface of the outer ring 16 are formed. Of the above, the second holder holes 51, 51 are formed at equal intervals to each other at three or more locations (for example, six locations) in the circumferential direction of the portion that can face the outer ring raceway 17 above. Like the first holder holes 25, 25, the second holder holes 51, 51 each having a circular shape are inclined downward in the diametrical direction. Then, one second ball 52, 52 is held in each such second holder hole 51, 51.
【００３３】各第二玉５２、５２は、やはり前記第一玉
２６、２６と同様に、前記図８の複列玉軸受１８に組み
込まれた玉６、６と同じものを使用し、上記各第二ホル
ダ孔５１、５１内に、上記第二ホルダ筒５０の内外方向
に亙る変位を自在として保持されている。但し、上述の
様に上記各第二ホルダ孔５１、５１は、第二ホルダ筒５
０の直径方向内方に向かう程下方に向かう方向に傾斜し
ている為、外力（具体的には、前記第二押し付けロッド
４７による押圧力）が働かない限り、図２に示す様に、
各第二ホルダ孔５１、５１の内側で、第二ホルダ筒５０
の直径方向内方に変位して、第二ホルダ筒５０の外周面
から突出する事はない。As with the first balls 26, 26, the second balls 52, 52 are the same as the balls 6, 6 incorporated in the double row ball bearing 18 of FIG. The second holder cylinder 50 is held in the second holder holes 51, 51 so as to be freely displaceable in the inner and outer directions. However, as described above, the second holder holes 51, 51 are not
As it inclines in a downward direction as it goes inward in the diametrical direction of 0, unless an external force (specifically, the pressing force by the second pressing rod 47) acts, as shown in FIG.
Inside the second holder holes 51, 51, the second holder cylinder 50
It does not displace inward in the diametrical direction and project from the outer peripheral surface of the second holder cylinder 50.
【００３４】又、前記第二ホルダ筒保持器４９の内周面
と、上記第二ホルダ筒５０の外周面との間には、上部外
輪受５３を、昇降自在に設けている。この上部外輪受５
３は、上端部に形成した鍔部５４と上記第二ホルダ筒保
持器４９下端部内周縁の係止部５５との係合により、こ
の第二ホルダ筒保持器４９からの抜け止めを図ってい
る。又、この上部外輪受５３の下端部には、外向フラン
ジ状の抑え部５６を設け、この抑え部５６によって、被
測定品である外輪１６の上縁を抑え付けられる様にして
いる。又、この上部外輪受５３は、図示しない電動モー
タにより、回転駆動自在としている。An upper outer ring receiver 53 is provided between the inner peripheral surface of the second holder cylinder holder 49 and the outer peripheral surface of the second holder cylinder 50 so as to be vertically movable. This upper outer ring bridge 5
3, the engagement between the flange 54 formed at the upper end and the engaging portion 55 at the inner peripheral edge of the lower end of the second holder cylinder holder 49 prevents the second holder cylinder holder 49 from coming off. .. Further, an outward flange-shaped restraining portion 56 is provided at a lower end portion of the upper outer race bearing 53, and the restraining portion 56 is capable of restraining the upper edge of the outer race 16 to be measured. The upper outer ring receiver 53 is rotatably driven by an electric motor (not shown).
【００３５】上述の様に、周囲に第二ホルダ筒５０と上
部外輪受５３とを設けた、第二押し付けロッド４７の下
端部外周面は、軸方向、即ち上下方向に亙って外径が変
化し、下方に向かう程外径が小さくなる第二傾斜面５７
としている。この第二傾斜面５７の上端部には、前記図
８の複列玉軸受１８に組み込まれた軸１４外周面の内輪
軌道１５と同様の第二基準押圧面５８を形成している。As described above, the outer peripheral surface of the lower end portion of the second pressing rod 47 around which the second holder cylinder 50 and the upper outer ring receiver 53 are provided has an outer diameter in the axial direction, that is, in the vertical direction. The second inclined surface 57 that changes and the outer diameter decreases toward the lower side
I am trying. A second reference pressing surface 58 similar to the inner ring raceway 15 on the outer peripheral surface of the shaft 14 incorporated in the double-row ball bearing 18 of FIG. 8 is formed at the upper end of the second inclined surface 57.
【００３６】又、上記第二押し付けロッド４７の中心部
に、上下方向に亙って形成した貫通孔５９に、測定ピン
６０を挿通し、圧縮ばね６１により、この測定ピン６０
に下方に向く弾力を付与している。そして、この測定ピ
ン６０の下端部を、上記第二押し付けロッド４７の下端
面から突出させて、前記第一押し付けロッド２７の上端
面に突き当て自在としている。The measuring pin 60 is inserted through a through hole 59 formed in the central portion of the second pressing rod 47 in the vertical direction, and the measuring pin 60 is compressed by the compression spring 61.
It gives the downward elasticity to. Then, the lower end portion of the measuring pin 60 is made to project from the lower end surface of the second pressing rod 47 so that it can be abutted against the upper end surface of the first pressing rod 27.
【００３７】更に、前記上部ホルダ４６に支持されたコ
ンパレータ６２の測定端子を、上記測定ピン６０の上端
面に突き当てて、前記第一押し付けロッド２７と第二押
し付けロッド４７との距離を測定する為の測距手段を構
成している。尚、上記測定ピン６０を押圧する為の圧縮
ばね６１の弾力は、前記第一押し付けロッド２７を上方
に押圧する為の圧縮ばね３４の弾力よりも十分に小さく
している。これは、測定時に所定の予圧を付与する為の
圧縮ばね３４の弾力が、上記圧縮ばね６１の弾力により
弱められる事のない様にする為である。Further, the measuring terminal of the comparator 62 supported by the upper holder 46 is abutted against the upper end surface of the measuring pin 60 to measure the distance between the first pressing rod 27 and the second pressing rod 47. It constitutes the distance measuring means for. The elastic force of the compression spring 61 for pressing the measuring pin 60 is made sufficiently smaller than the elastic force of the compression spring 34 for pressing the first pressing rod 27 upward. This is to prevent the elastic force of the compression spring 34 for applying a predetermined preload at the time of measurement from being weakened by the elastic force of the compression spring 61.
【００３８】上述の様に構成される、本発明の複列玉軸
受の外輪軌道のピッチを測定する装置により、外輪１６
の内周面に形成された複列の外輪軌道１７、１７のピッ
チＰを測定する場合、次の様にして行なう。The apparatus for measuring the pitch of the outer ring raceway of the double-row ball bearing of the present invention, which is constructed as described above, uses the outer ring 16
When measuring the pitch P of the double-row outer ring raceways 17, 17 formed on the inner peripheral surface of, the following procedure is performed.
【００３９】測定装置の待機状態に於いては、図２に示
す様に、第一エアシリンダ２８により下部ホルダ２０を
下降させた状態で、第二エアシリンダ２９によって第一
押し付けロッド２７を下降させる事により、第一ホルダ
筒２３の複数の第一ホルダ孔２５、２５の内側に保持さ
れた第一玉２６、２６を、上記第一ホルダ筒２３の内側
に変位させておく。又、第三エアシリンダ４２を非作動
状態として、圧縮ばね４１の弾力により下部外輪受３９
を上昇させておく。In the standby state of the measuring apparatus, as shown in FIG. 2, the first pressing rod 27 is lowered by the second air cylinder 29 while the lower holder 20 is lowered by the first air cylinder 28. As a result, the first balls 26, 26 held inside the plurality of first holder holes 25, 25 of the first holder cylinder 23 are displaced inside the first holder cylinder 23. Further, the third air cylinder 42 is deactivated and the elastic force of the compression spring 41 causes the lower outer ring bearing 39 to move.
Keep rising.
【００４０】測定作業を行なう場合、図２に示した待機
状態のまま、上記第一ホルダ筒２３の上端部に、被測定
品である外輪１６の下端部を被せ、この外輪１６の下縁
を上記下部外輪受３９の内向フランジ部４５の上面に載
置する。次いで、第三エアシリンダ４２により下部外輪
受３９を下降させる事により、上記外輪１６を下降さ
せ、この外輪１６の内周面に形成された複列の外輪軌道
１７、１７の内、下半部に形成された一方の外輪軌道１
７を、上記複数の第一ホルダ孔２５、２５に整合させ
る。When carrying out the measurement operation, the lower end of the outer ring 16 which is the object to be measured is put on the upper end of the first holder cylinder 23 in the standby state shown in FIG. It is placed on the upper surface of the inward flange portion 45 of the lower outer ring receiver 39. Next, the lower outer ring receiver 39 is lowered by the third air cylinder 42 to lower the outer ring 16, and the inner and lower half portions of the double row outer ring raceways 17, 17 formed on the inner circumferential surface of the outer ring 16 are then lowered. Outer ring raceway 1 formed on the
7 is aligned with the plurality of first holder holes 25, 25.
【００４１】次いで、第二エアシリンダ２９により、そ
れ迄下降していた第一押し付けロッド２７を上昇させ
て、この第一押し付けロッド２７外周面の第一傾斜面３
７により、上記複数の第一玉２６、２６を各第一ホルダ
孔２５、２５の外側に変位させ、各第一玉２６、２６
を、上記一方の外輪軌道１７に押し付ける。Then, the second air cylinder 29 raises the first pressing rod 27 that has been lowered so far, and the first inclined surface 3 of the outer peripheral surface of the first pressing rod 27 is raised.
7, the plurality of first balls 26, 26 are displaced to the outside of the first holder holes 25, 25, respectively.
Is pressed against the one outer ring raceway 17.
【００４２】次いで、図２〜３に示す様に、第一エアシ
リンダ２８によって下降していた下部ホルダ２０を、図
４に示す様に上昇させ、上記第一ホルダ筒２３と第二ホ
ルダ筒５０とを、互いに近付ける。下部ホルダ２０の上
昇に伴なって、先ず図４に示す様に、外輪１６の上端縁
が上部外輪受５３の抑え部５６に突き当たる。第二ホル
ダ筒５０の下端部に保持された第二玉５２、５２と、上
記外輪１６の内周面に形成された複列の外輪軌道１７、
１７の内、上半部に形成された他方の外輪軌道１７と
は、この状態で整合する。Next, as shown in FIGS. 2 to 3, the lower holder 20, which has been lowered by the first air cylinder 28, is raised as shown in FIG. 4, and the first holder cylinder 23 and the second holder cylinder 50 are moved. And get closer to each other. As the lower holder 20 rises, first, as shown in FIG. 4, the upper edge of the outer ring 16 abuts against the restraining portion 56 of the upper outer ring receiver 53. The second balls 52, 52 held at the lower end of the second holder cylinder 50, and the double row outer ring raceways 17 formed on the inner peripheral surface of the outer ring 16,
In this state, the other outer ring raceway 17 formed in the upper half portion of 17 is aligned.
【００４３】この状態から、更に下部ホルダ２０を上昇
させると、外輪１６を介して先ず図４に示す様に、上部
外輪受５３が上昇し、次いで図１に示す様に、第二ホル
ダ筒５０が押し上げられる。但し、第二押し付けロッド
４７は上昇する事なく、そのままの位置に保持される
為、この第二押し付けロッド４７の下端部が第二玉５
２、５２の内側に進入し、この複数の第二玉５２、５２
を各第二ホルダ孔５１、５１の内側で、第二ホルダ筒５
０の直径方向外側に変位させ、各第二玉５２、５２を、
上記外輪軌道１７に押し付ける。When the lower holder 20 is further raised from this state, the upper outer ring support 53 is first raised through the outer ring 16 as shown in FIG. 4, and then the second holder cylinder 50 is shown as shown in FIG. Is pushed up. However, since the second pressing rod 47 does not move up and is held in the same position, the lower end portion of the second pressing rod 47 is the second ball 5
Enter the inside of 2, 52, and the plurality of second balls 52, 52
Inside the second holder holes 51, 51, the second holder cylinder 5
0 to the outside in the diametrical direction, and each second ball 52, 52,
The outer ring raceway 17 is pressed.
【００４４】この様にして、複数の第一玉２６、２６を
下側の外輪軌道１７に、複数の第二玉５２、５２を上側
の外輪軌道１７に、それぞれ押し付けた状態で、上記複
数の第一玉２６、２６を下側の外輪軌道１７に押し付け
る第一傾斜面３７下端部の第一基準押圧面３８と、上記
複数の第二玉５２、５２を上側の外輪軌道１７に押し付
けている第二傾斜面５７上端部の第二基準押圧面５８と
は、それぞれ複列玉軸受を構成する軸１４外周面の内輪
軌道１５、１５（図８参照）と同様に傾斜している為、
上記第一玉２６、２６と第二玉５２、５２とは、それぞ
れの外輪軌道１７、１７に対して所定の接触角θで接触
する。In this way, the plurality of first balls 26, 26 are pressed against the outer ring raceway 17 on the lower side, and the plurality of second balls 52, 52 are pressed on the outer raceway 17 on the upper side, respectively. The first reference pressing surface 38 at the lower end of the first inclined surface 37 that presses the first balls 26, 26 against the outer ring raceway 17 on the lower side and the plurality of second balls 52, 52 are pressed on the outer ring raceway 17 on the upper side. The second reference pressing surface 58 at the upper end of the second inclined surface 57 is inclined similarly to the inner ring raceways 15 and 15 (see FIG. 8) on the outer peripheral surface of the shaft 14 constituting the double-row ball bearing, respectively.
The first balls 26, 26 and the second balls 52, 52 contact the outer ring raceways 17, 17 at a predetermined contact angle θ.
【００４５】そこで、測距手段を構成するコンパレータ
６２により、上記第一押し付けロッド２７と第二押し付
けロッド４７との距離を測定する。この様な距離測定作
業は、予め複列の外輪軌道１７、１７のピッチＰが解っ
た外輪１６（標準品）で行なって、上記コンパレータ６
２の指示値を、マイクロコンピュータ等に記録してお
く。そして、この記録した指示値と、上記ピッチＰを求
めるべき外輪１６（被測定品）を本発明装置にセットし
た場合に於ける、上記コンパレータ６２の指示値とを比
較する（加減する）事で、上記被測定品のピッチＰを求
める。Therefore, the distance between the first pressing rod 27 and the second pressing rod 47 is measured by the comparator 62 constituting the distance measuring means. Such distance measurement work is performed on the outer ring 16 (standard product) in which the pitch P of the outer ring raceways 17, 17 of the double row is known in advance, and the comparator 6
The indicated value of 2 is recorded in a microcomputer or the like. By comparing (adjusting) the recorded instruction value with the instruction value of the comparator 62 when the outer ring 16 (measurement object) for which the pitch P is to be obtained is set in the device of the present invention. Then, the pitch P of the measured product is obtained.
【００４６】尚、上記コンパレータ６２による測定作業
を行なう際には、上部外輪受５３を介して外輪１６を回
転させ、各外輪軌道１７、１７と第一玉２６、２６及び
第二玉５２、５２とを馴染ませ、複列玉軸受の使用状態
に即した状態で、前記ピッチＰを測定する。When performing the measurement work by the comparator 62, the outer ring 16 is rotated through the upper outer ring receiver 53, and the outer ring raceways 17, 17 and the first balls 26, 26 and the second balls 52, 52 are rotated. And the pitch P is measured in a state in which the double row ball bearing is in use.
【００４７】測定作業を終了したならば、上記と逆の手
順で、本発明の測定装置から外輪１６を取り出し、別の
外輪１６（被測定品）を測定装置にセットする事で、測
定作業を行なう。尚、測定作業の終了に伴なって、第
一、第二両ホルダ筒２３、５０を離隔させるべく、第一
エアシリンダ２８により下部ホルダ２０を下降させる際
には、先ず、第二ホルダ筒５０上端部の鍔部６６が、第
二ホルダ筒保持器４９内周面の段部６４に衝合して、第
二ホルダ筒５０の下降を制限する。When the measurement work is completed, the outer ring 16 is taken out from the measuring device of the present invention and the other outer ring 16 (measurement object) is set in the measuring device in the reverse order of the above, so that the measuring work is completed. To do. When the lower holder 20 is lowered by the first air cylinder 28 in order to separate the first and second holder cylinders 23, 50 from each other with the completion of the measurement work, first, the second holder cylinder 50 is moved. The flange portion 66 at the upper end abuts against the step portion 64 on the inner peripheral surface of the second holder cylinder holder 49 to limit the lowering of the second holder cylinder 50.
【００４８】上部外輪受５３は、その後しばらく下降し
続ける為、上記第二ホルダ筒５０の第二ホルダ孔５１、
５１の周囲はこの上部外輪受５３により塞がれる。従っ
て、各第二ホルダ孔５１、５１内に保持された第二玉５
２、５２が、各第二ホルダ孔５１、５１から不用意に脱
落する事はない。尚、この際、第二ホルダ筒５０と上部
外輪受５３との下降が確実に行なわれる様に、吸気口６
５を通じて上記鍔部６６の上側に、圧縮空気を送り込む
事も出来る。Since the upper outer ring receiver 53 continues to descend for a while after that, the second holder hole 51 of the second holder cylinder 50,
The periphery of 51 is closed by the upper outer ring receiver 53. Therefore, the second balls 5 held in the respective second holder holes 51, 51
The second and second holes 52 and 52 do not accidentally fall off from the second holder holes 51 and 51. At this time, the intake port 6 is designed so that the second holder cylinder 50 and the upper outer ring receiver 53 are surely lowered.
It is also possible to send compressed air to the upper side of the collar portion 66 through 5.
【００４９】次に、図５は本発明の第二実施例を示して
いる。上述の第一実施例が、接触角θの方向が図８
（Ａ）に示す様に、内側に向かう程広がる方向の場合に
於けるピッチＰを測定する構造であるのに対して、この
第二実施例は、接触角θの方向が、同図（Ｂ）に示す様
に、外側に向かう程広がる方向の場合に於けるピッチＰ
を測定する構造となっている。Next, FIG. 5 shows a second embodiment of the present invention. In the first embodiment described above, the direction of the contact angle θ is shown in FIG.
As shown in (A), the structure is such that the pitch P is measured in a case where the pitch P expands toward the inside, whereas in the second embodiment, the direction of the contact angle θ is shown in FIG. ), The pitch P in the direction of expanding toward the outside
It has a structure for measuring.
【００５０】この様な接触角θの方向の相違に合わせて
本実施例の場合、上述の第一実施例の場合とは逆に、測
定時に第一押し付けロッド２７が下降し、第二押し付け
ロッド４７が上昇する様にしている。又、第一、第二各
押し付けロッド２７、４７の端部に形成した第一、第二
両傾斜面３７、５７は、それぞれ第一、第二各押し付け
ロッド２７、４７の先端部に向かう程径が大きくなる様
に傾斜している。In accordance with such a difference in the direction of the contact angle θ, in the case of the present embodiment, contrary to the case of the above-mentioned first embodiment, the first pressing rod 27 descends at the time of measurement, and the second pressing rod 27 I'm trying to raise 47. Further, the first and second both inclined surfaces 37 and 57 formed at the end portions of the first and second pressing rods 27 and 47 are moved toward the tip portions of the first and second pressing rods 27 and 47, respectively. Inclined so that the diameter increases.
【００５１】又、第二押し付けロッド４７の周囲に第二
ホルダ筒保持器４９を、昇降自在に支持し、この第二ホ
ルダ筒保持器４９の内周面と上記第二押し付けロッド４
７の外周面との間に設けたエアシリンダ６３への圧縮空
気の給排により、上記第二ホルダ筒保持器４９が第二押
し付けロッド４７に対し、若干昇降する様にしている。
又、上記第二ホルダ筒保持器４９の上昇時には、先ず第
二ホルダ筒５０が引き上げられ、第二玉５２、５２の脱
落防止を図る様にしている。A second holder cylinder holder 49 is supported around the second pressing rod 47 so as to be able to move up and down, and the inner peripheral surface of the second holder cylinder holder 49 and the second pressing rod 4 are
When the compressed air is supplied to and discharged from the air cylinder 63 provided between the second holder cylinder holder 49 and the outer peripheral surface of 7, the second holder cylinder holder 49 is slightly moved up and down with respect to the second pressing rod 47.
When the second holder cylinder holder 49 is raised, the second holder cylinder 50 is first pulled up to prevent the second balls 52, 52 from falling off.
【００５２】ピッチＰを測定する際には、第一、第二両
押し付けロッド２７、４７を引き離す傾向とし、圧縮ば
ね３４を圧縮した状態で、コンパレータ６２の指示値を
求める。その他、基本的な構成及び作用は、上述の第一
実施例とほぼ同様である為、重複する説明を省略する。When the pitch P is measured, the first and second pressing rods 27 and 47 tend to be pulled apart, and the instruction value of the comparator 62 is obtained with the compression spring 34 compressed. Other than that, the basic structure and operation are almost the same as those of the above-described first embodiment, and therefore, duplicated description will be omitted.
【００５３】尚、本発明の装置によりピッチを測定され
る外輪と共に複列玉軸受を構成する内輪相当部材は、図
示の実施例の様な軸１４に限定されず、円筒形の内輪で
も良い事は勿論である。The member corresponding to the inner ring that constitutes the double-row ball bearing together with the outer ring whose pitch is measured by the device of the present invention is not limited to the shaft 14 as in the illustrated embodiment, but may be a cylindrical inner ring. Of course.
【００５４】[0054]
【発明の効果】本発明の複列玉軸受の外輪軌道のピッチ
を測定する装置は、以上に述べた通り構成され作用する
為、外輪の内周面に形成された複列の外輪軌道のピッチ
を、正確に求める事が出来る。この結果、この外輪を含
んで構成される複列玉軸受の製造誤差の縮小を図る事が
出来、耐久性、信頼性を含む性能の優れた複列玉軸受
を、安定して提供する事が可能となる。Since the device for measuring the pitch of the outer ring raceway of the double row ball bearing of the present invention is constructed and operates as described above, the pitch of the double row outer ring raceway formed on the inner peripheral surface of the outer ring. Can be accurately determined. As a result, it is possible to reduce the manufacturing error of the double-row ball bearing including the outer ring, and to stably provide the double-row ball bearing with excellent performance including durability and reliability. It will be possible.
【図１】本発明の第一実施例の全体構成を、ピッチ測定
時の状態で示す縦断側面図。FIG. 1 is a vertical cross-sectional side view showing the overall configuration of a first embodiment of the present invention in a state during pitch measurement.
【図２】同じく、準備作業の第一段階の状態で示す縦断
側面図。FIG. 2 is a vertical sectional side view showing a state of the first stage of the preparatory work.
【図３】同じく、準備作業の第二段階の状態で示す縦断
側面図。FIG. 3 is likewise a vertical cross-sectional side view showing the state of the second stage of the preparatory work.
【図４】同じく、準備作業の第三段階の状態で示す縦断
側面図。FIG. 4 is a vertical sectional side view similarly showing a state of a third stage of the preparatory work.
【図５】本発明の第二実施例の全体構成を、ピッチ測定
時の状態で示す縦断側面図。FIG. 5 is a vertical cross-sectional side view showing the overall configuration of the second embodiment of the present invention in a state during pitch measurement.
【図６】内輪分割型の複列玉軸受の２例を示す断面図。FIG. 6 is a sectional view showing two examples of inner ring split type double-row ball bearings.
【図７】従来のピッチ測定方法の１例を示す縦断面図。FIG. 7 is a vertical sectional view showing an example of a conventional pitch measuring method.
【図８】単一の軸に複列の内輪軌道を形成した複列玉軸
受の２例を示す断面図。FIG. 8 is a cross-sectional view showing two examples of a double-row ball bearing in which a single shaft is formed with a double-row inner ring raceway.
１ 複列玉軸受 ２ 外輪軌道 ３ 外輪 ４ 内輪軌道 ５ 内輪 ６ 玉 ７ 肩部 ８ 保持器 ９ 玉 １０ 傾斜面 １１ 押し付け部材 １２ ロッド １３ コンパレータ １４ 軸 １５ 内輪軌道 １６ 外輪 １７ 外輪軌道 １８ 複列玉軸受 １９ 鉛直壁 ２０ 下部ホルダ ２１ 第一ホルダ筒保持器 ２２ 係止溝 ２３ 第一ホルダ筒 ２４ 係止鍔部 ２５ 第一ホルダ孔 ２６ 第一玉 ２７ 第一押し付けロッド ２８ 第一エアシリンダ ２９ 第二エアシリンダ ３０ ホルダ ３１ 円孔 ３２ 支持棒 ３３ 鍔部 ３４ 圧縮ばね ３５ 庇部 ３６ 鍔部 ３７ 第一傾斜面 ３８ 第二基準押圧面 ３９ 下部外輪受 ４０ 段部 ４１ 圧縮ばね ４２ 第三エアシリンダ ４３ 抑え駒 ４４ 鍔部 ４５ 内向フランジ部 ４６ 上部ホルダ ４７ 第二押し付けロッド ４８ 基端部 ４９ 第二ホルダ筒保持器 ５０ 第二ホルダ筒 ５１ 第二ホルダ孔 ５２ 第二玉 ５３ 上部外輪受 ５４ 鍔部 ５５ 係止部 ５６ 抑え部 ５７ 第二傾斜面 ５８ 第二基準押圧面 ５９ 貫通孔 ６０ 測定ピン ６１ 圧縮ばね ６２ コンパレータ ６３ エアシリンダ ６４ 段部 ６５ 給気口 ６６ 鍔部 1 Double-row ball bearing 2 Outer ring raceway 3 Outer ring 4 Inner ring raceway 5 Inner ring 6 Ball 7 Shoulder 8 Cage 9 Ball 10 Slope 11 Pushing member 12 Rod 13 Comparator 14 Shaft 15 Inner ring race 16 Outer ring 17 Outer ring race 18 18 Double row ball bearing 19 Vertical Wall 20 Lower Holder 21 First Holder Tube Holder 22 Locking Groove 23 First Holder Tube 24 Locking Collar 25 First Holder Hole 26 First Ball 27 First Pressing Rod 28 First Air Cylinder 29 Second Air Cylinder 30 Holder 31 Circular hole 32 Support rod 33 Collar portion 34 Compression spring 35 Eaves portion 36 Collar portion 37 First inclined surface 38 Second reference pressing surface 39 Lower outer ring bearing 40 Step portion 41 Compression spring 42 Third air cylinder 43 Restraining piece 44 Collar part 45 Inward flange part 46 Upper holder 47 Second pressing rod 48 Base end part 49 Second holder cylinder retainer 50 Two holder cylinder 51 Second holder hole 52 Second ball 53 Upper outer ring receiving 54 Collar part 55 Locking part 56 Suppressing part 57 Second inclined surface 58 Second reference pressing surface 59 Through hole 60 Measuring pin 61 Compression spring 62 Comparator 63 Air Cylinder 64 Step 65 Air supply port 66 Collar
Claims (1)
の外輪軌道と、内輪相当部材の外周面に形成された複列
の内輪軌道との間に、それぞれ複数個の玉を転動自在に
装着して成る複列玉軸受を構成する複数の玉が、上記外
輪軌道に当接する部分の中心同士の距離を測定する、複
列玉軸受の外輪軌道のピッチを測定する装置であって、
上記外輪相当部材の片半部の内側に挿入自在な第一ホル
ダ筒と、この第一ホルダ筒の一部で、上記外輪相当部材
の内周面に形成された複列の外輪軌道の内、一方の外輪
軌道と対向し得る部分の円周方向３箇所以上に形成され
た第一ホルダ孔と、上記第一ホルダ筒の内外方向に亙る
変位を自在として、各第一ホルダ孔の内側に保持された
複数の第一玉と、外周面を軸方向に亙って外径が変化す
る第一傾斜面とし、上記第一ホルダ筒の内側に、軸方向
に亙る変位を自在として設けられた第一押し付けロッド
と、この第一押し付けロッドを軸方向に亙って変位させ
る為の変位機構と、上記第一ホルダ筒と同軸上に設けら
れ、上記外輪相当部材の他半部の内側に挿入自在な第二
ホルダ筒と、この第二ホルダ筒の一部で、上記外輪相当
部材の内周面に形成された複列の外輪軌道の内、他方の
外輪軌道と対向し得る部分の円周方向３箇所以上に形成
された第二ホルダ孔と、上記第二ホルダ筒の内外方向に
亙る変位を自在として、各第二ホルダ孔の内側に保持さ
れた複数の第二玉と、外周面を軸方向に亙って外径が変
化する第二傾斜面とし、上記第二ホルダ筒の内側に、軸
方向に亙る変位を自在として設けられた第二押し付けロ
ッドと、上記第二ホルダ筒及び第二押し付けロッドを、
上記第一ホルダ筒及び第一押し付けロッドに対して遠近
動させる為の駆動機構と、上記第一押し付けロッドと第
二押し付けロッドとの距離を測定する為の測距手段とか
ら成る複列玉軸受の外輪軌道のピッチを測定する装置。1. A plurality of balls are respectively rolled between a double row outer ring raceway formed on an inner peripheral surface of an outer ring equivalent member and a double row inner ring raceway formed on an outer peripheral surface of an inner ring equivalent member. A device for measuring the pitch of the outer ring race of a double-row ball bearing, which measures the distance between the centers of the parts where the multiple balls that are movably mounted are in contact with the outer ring race. hand,
A first holder cylinder insertable inside one half of the outer ring equivalent member, and a part of the first holder cylinder in a double row outer ring raceway formed on the inner peripheral surface of the outer ring equivalent member, A first holder hole formed at three or more positions in the circumferential direction of a portion that can face one outer ring raceway and the inside of the first holder cylinder are freely displaceable and retained inside each first holder hole. A plurality of first balls and an outer peripheral surface which is a first inclined surface whose outer diameter changes in the axial direction, and which is provided inside the first holder cylinder so as to be freely displaceable in the axial direction. One pressing rod, a displacement mechanism for displacing the first pressing rod in the axial direction, and a coaxial arrangement with the first holder cylinder, which can be inserted into the other half of the member corresponding to the outer ring. A second holder cylinder and a part of the second holder cylinder, which is formed on the inner peripheral surface of the outer ring equivalent member. Of the two rows of outer ring raceways formed, second holder holes formed at three or more positions in the circumferential direction of a portion that can face the other outer ring raceway, and the displacement of the second holder cylinder in the inner and outer directions can be made freely. , A plurality of second balls held inside each of the second holder holes, and the outer peripheral surface as a second inclined surface whose outer diameter changes in the axial direction, A second pressing rod provided to be freely displaceable over the second holder cylinder and the second pressing rod,
A double-row ball bearing including a drive mechanism for moving the first holder cylinder and the first pressing rod in a perspective manner, and distance measuring means for measuring a distance between the first pressing rod and the second pressing rod. Device for measuring the pitch of the outer ring track of the car.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24642291A JPH0560657A (en) | 1991-09-02 | 1991-09-02 | Apparatus for measuring pitch of outer ring races of double row ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24642291A JPH0560657A (en) | 1991-09-02 | 1991-09-02 | Apparatus for measuring pitch of outer ring races of double row ball bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0560657A true JPH0560657A (en) | 1993-03-12 |
Family
ID=17148247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24642291A Pending JPH0560657A (en) | 1991-09-02 | 1991-09-02 | Apparatus for measuring pitch of outer ring races of double row ball bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0560657A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5961029A (en) * | 1997-01-13 | 1999-10-05 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US5967401A (en) * | 1996-12-27 | 1999-10-19 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US5989995A (en) * | 1996-12-27 | 1999-11-23 | Kabushiki Kaisha Shinkawa | Semiconductor device and wire bonding method therefor |
| US6036080A (en) * | 1997-03-06 | 2000-03-14 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6112974A (en) * | 1998-10-08 | 2000-09-05 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6182885B1 (en) | 1998-09-07 | 2001-02-06 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6343733B1 (en) | 1998-06-23 | 2002-02-05 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6595400B2 (en) | 2000-08-22 | 2003-07-22 | Kabushiki Kaisha Shinkawa | Wire bonding apparatus |
| DE19748664B4 (en) * | 1996-11-05 | 2006-07-13 | Koyo Seiko Co., Ltd. | Method of measuring a bias applied to a double row rolling bearing |
| JP2009063515A (en) * | 2007-09-07 | 2009-03-26 | Nsk Ltd | Bearing-measuring instrument |
| CN102928226A (en) * | 2012-10-31 | 2013-02-13 | 中国科学院西安光学精密机械研究所 | Back-to-back paired mounting angular contact ball bearing parameter combination measuring device |
| CN109341628A (en) * | 2018-10-26 | 2019-02-15 | 江苏世冠自动化设备有限公司 | Outer ring raceway pitch measuring |
| CN110260834A (en) * | 2019-06-28 | 2019-09-20 | 无锡双益精密机械有限公司 | Double-row angular contact bal bearing outer ring measurement structure |
-
1991
- 1991-09-02 JP JP24642291A patent/JPH0560657A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19748664B4 (en) * | 1996-11-05 | 2006-07-13 | Koyo Seiko Co., Ltd. | Method of measuring a bias applied to a double row rolling bearing |
| US5967401A (en) * | 1996-12-27 | 1999-10-19 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US5989995A (en) * | 1996-12-27 | 1999-11-23 | Kabushiki Kaisha Shinkawa | Semiconductor device and wire bonding method therefor |
| US5961029A (en) * | 1997-01-13 | 1999-10-05 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6036080A (en) * | 1997-03-06 | 2000-03-14 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6343733B1 (en) | 1998-06-23 | 2002-02-05 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6182885B1 (en) | 1998-09-07 | 2001-02-06 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6112974A (en) * | 1998-10-08 | 2000-09-05 | Kabushiki Kaisha Shinkawa | Wire bonding method |
| US6595400B2 (en) | 2000-08-22 | 2003-07-22 | Kabushiki Kaisha Shinkawa | Wire bonding apparatus |
| JP2009063515A (en) * | 2007-09-07 | 2009-03-26 | Nsk Ltd | Bearing-measuring instrument |
| CN102928226A (en) * | 2012-10-31 | 2013-02-13 | 中国科学院西安光学精密机械研究所 | Back-to-back paired mounting angular contact ball bearing parameter combination measuring device |
| CN109341628A (en) * | 2018-10-26 | 2019-02-15 | 江苏世冠自动化设备有限公司 | Outer ring raceway pitch measuring |
| CN110260834A (en) * | 2019-06-28 | 2019-09-20 | 无锡双益精密机械有限公司 | Double-row angular contact bal bearing outer ring measurement structure |
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