JP2002046031A - Press-in method for elastic bush - Google Patents
Press-in method for elastic bushInfo
- Publication number
- JP2002046031A JP2002046031A JP2000236565A JP2000236565A JP2002046031A JP 2002046031 A JP2002046031 A JP 2002046031A JP 2000236565 A JP2000236565 A JP 2000236565A JP 2000236565 A JP2000236565 A JP 2000236565A JP 2002046031 A JP2002046031 A JP 2002046031A
- Authority
- JP
- Japan
- Prior art keywords
- support hole
- press
- diameter
- elastic bush
- flange portion
- 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
- Automatic Assembly (AREA)
- Vibration Prevention Devices (AREA)
- Springs (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、サスペンションア
ーム等の被支持物に形成した支持穴に嵌合させて被支持
物を弾力的に支持するのに用いる弾性ブッシュを支持穴
に圧入する方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for press-fitting an elastic bush used to elastically support a supported object by fitting it into a support hole formed in the supported object such as a suspension arm. .
【０００２】[0002]
【従来の技術】従来、この種の弾性ブッシュとして、内
筒と、内筒の外周に固着した弾性体と、弾性体の径方向
中間部に埋設したインタスリーブとを備えるものが知ら
れている。また、弾性ブッシュには、弾性体の外周に外
筒を固定して、被支持物の支持穴に外筒において圧入固
定する外筒付きタイプのものと、被支持物の支持穴の内
周に弾性体を直接接触させる外筒レスタイプのものとが
ある。2. Description of the Related Art Heretofore, as this kind of elastic bush, there has been known an elastic bush having an inner cylinder, an elastic body fixed to the outer periphery of the inner cylinder, and an inter sleeve embedded at a radially intermediate portion of the elastic body. . Further, the elastic bush has an outer cylinder fixed to the outer periphery of the elastic body and is press-fitted and fixed to the support hole of the supported object by the outer cylinder. There is an outer cylinder-less type in which an elastic body is brought into direct contact.
【０００３】外筒レスタイプのものは、外筒付きタイプ
のものに比しコストが安くなる利点があるが、支持穴に
対する固定を弾性体の締め代だけで得るため、抜け荷重
が小さくなる欠点がある。そこで、外筒レスタイプの弾
性ブッシュにおいて、インタスリーブの両端に、弾性ブ
ッシュを支持穴に嵌合させた状態で支持穴の軸方向投影
面から径方向外方に張り出すフランジ部を形成し、一端
のフランジ部と他端のフランジ部とにより軸方向一方と
他方とへの抜けに対する抵抗力を高め、抜け荷重を大き
くし得るようにしたものが考えられている。[0003] The outer cylinder-less type has an advantage that the cost is lower than that of the type with an outer cylinder. However, since the fixing to the support hole is obtained only by the interference of the elastic body, the drawback that the pull-out load is reduced. There is. Therefore, in the outer cylinder-less type elastic bush, at both ends of the inter sleeve, a flange portion is formed to project radially outward from the axial projection surface of the support hole in a state where the elastic bush is fitted into the support hole, It has been considered that the flange portion at one end and the flange portion at the other end increase the resistance to removal in one direction and the other in the axial direction so that the removal load can be increased.
【０００４】[0004]
【発明が解決しようとする課題】外筒レスタイプの弾性
ブッシュにおいて、上記の如くインタスリーブの両端に
フランジ部を形成する場合、両端のフランジ部のうち支
持穴に対する弾性ブッシュの圧入方向先方に位置する一
端のフランジ部の周方向の少なくとも一部にインタスリ
ーブの筒状部に亘る切欠きを形成して、一端のフランジ
部を縮径可能とし、支持穴に弾性ブッシュを圧入する
際、被支持物の支持穴の入口側開口面に、支持穴に近づ
くにつれて内径が小さくなる環状の縮径ガイドを配置
し、インタスリーブの前記一端のフランジ部を縮径ガイ
ドへの押し込みで縮径させて支持穴に導き入れることが
必要になる。 ＃ 然し、このままでは、弾性ブッシュの圧入で縮径ガ
イドがインタスリーブの他端のフランジ部により押え付
けられてしまい、縮径ガイドを離脱できなくなる。In the case where flange portions are formed at both ends of the inter sleeve as described above in the outer cylinder-less type elastic bush, the flange portions at both ends are located at positions forward in the press-fitting direction of the elastic bush into the support holes. A notch is formed in at least a part of the flange portion at one end in the circumferential direction so as to reduce the diameter of the flange portion at one end, and is supported when the elastic bush is pressed into the support hole. An annular reduced diameter guide whose inner diameter decreases as approaching the support hole is arranged on the entrance side opening surface of the support hole of the object, and the flange portion at one end of the inter sleeve is pressed down into the reduced diameter guide to support it. It is necessary to guide it into the hole. However, in this state, the reduced diameter guide is pressed by the flange portion at the other end of the inter sleeve due to the press-fitting of the elastic bush, and the reduced diameter guide cannot be detached.
【０００５】本発明は、以上の点に鑑み、圧入後の縮径
ガイドの離脱を可能とし、インタスリーブの両端にフラ
ンジ部を形成した外筒レスタイプの弾性ブッシュを縮径
ガイドを用いて支持穴にスムーズに圧入し得るようにし
た方法を提供することを課題としている。SUMMARY OF THE INVENTION In view of the above, the present invention makes it possible to remove a reduced diameter guide after press-fitting, and supports an outer cylinderless type elastic bush having flange portions formed at both ends of an inter sleeve using a reduced diameter guide. An object of the present invention is to provide a method capable of smoothly press-fitting a hole.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決すべく、
被支持物に形成した支持穴に嵌合させて被支持物を弾力
的に支持するのに用いる弾性ブッシュであって、内筒
と、内筒の外周に固着した、支持穴の内面に直接接触す
る弾性体と、弾性体の径方向中間部に埋設したインタス
リーブとを備え、インタスリーブの両端に、弾性ブッシ
ュを支持穴に嵌合させた状態で支持穴の軸方向投影面か
ら径方向外方に張り出すフランジ部を形成すると共に、
両端のフランジ部のうち支持穴に対する弾性ブッシュの
圧入方向先方に位置する一端のフランジ部の周方向の少
なくとも一部にインタスリーブの筒状部に亘る切欠きを
形成して、一端のフランジ部を縮径可能として成るもの
を支持穴に圧入する方法において、本発明の第１の特徴
によれば、被支持物の支持穴の入口側開口面に、支持穴
に近づくにつれて内径が小さくなる環状の縮径ガイドを
配置し、インタスリーブの前記一端のフランジ部を縮径
ガイドへの押し込みで縮径させて支持穴に導き入れるよ
うにすると共に、縮径ガイドを径方向に開閉自在な複数
のセグメントで構成して、弾性ブッシュの圧入後にこれ
らセグメントを径方向に開くようにし、また、本発明の
第２の特徴によれば、被支持物の支持穴の入口側開口面
に環状の縮径ガイドを配置し、縮径ガイドの内周の周方
向複数箇所に、支持穴に近づくにつれて径方向内方への
突出量が大きくなるガイド突起を突設して、インタスリ
ーブの前記一端のフランジ部を縮径ガイドへの押し込み
でガイド突起により縮径させて支持穴に導入されるよう
にすると共に、インタスリーブの他端のフランジ部にガ
イド突起と同位相で周方向複数箇所の凹欠部を形成し、
弾性ブッシュの圧入後に各ガイド突起が各凹欠部を通過
するように縮径ガイドを軸方向に離脱させるようにし、
また、本発明の第３の特徴によれば、被支持物の支持穴
の入口側開口面に、支持穴に近づくにつれて内径が小さ
くなり、且つ、前記切欠きに合致する径方向一方に開放
された略Ｕ字状の縮径ガイドを配置し、インタスリーブ
の前記一端のフランジ部を縮径ガイドへの押し込みで縮
径させて支持穴に導き入れるようにすると共に、弾性ブ
ッシュの圧入後に縮径ガイドを該ガイドの開放方向と反
対方向に離脱させるようにしている。Means for Solving the Problems In order to solve the above problems,
An elastic bush that is fitted into a support hole formed in a supported object to elastically support the supported object, and is in direct contact with the inner cylinder and the inner surface of the support hole fixed to the outer periphery of the inner cylinder. And an inter sleeve embedded in a radially intermediate portion of the elastic body. At both ends of the inter sleeve, an elastic bush is fitted radially outwardly from the axial projection surface of the support hole with the elastic bush fitted in the support hole. While forming a flange that projects toward
A notch is formed in at least a part of the flange at one end in the circumferential direction of the flange at one end located in the press-fitting direction of the elastic bush with respect to the support hole, and the flange at one end is formed at the flange at one end. According to a first feature of the present invention, in a method of press-fitting a member which can be reduced in diameter into a support hole, an annular shape in which an inner diameter becomes smaller as approaching the support hole is provided on an inlet-side opening surface of the support hole of the object to be supported. A plurality of segments which are provided with a diameter reducing guide, and which reduce the diameter of the flange portion at one end of the inter sleeve by being pushed into the diameter reducing guide so as to be guided into the support hole, and which can be opened and closed in the radial direction. According to the second feature of the present invention, an annular reduced-diameter guide is provided on the inlet-side opening surface of the support hole of the supported object. Are arranged, and at a plurality of locations in the circumferential direction of the inner circumference of the diameter-reducing guide, a guide projection is provided in which the amount of projection inward in the radial direction increases toward the support hole, and the flange portion at the one end of the inter sleeve is provided. By pressing the guide into the reduced diameter guide, the diameter is reduced by the guide projection so that it is introduced into the support hole, and a plurality of concave portions in the circumferential direction are formed in the flange portion at the other end of the inter sleeve in the same phase as the guide projection. And
After the press-fitting of the elastic bush, the reduced diameter guide is detached in the axial direction so that each guide protrusion passes through each concave notch,
Further, according to the third feature of the present invention, the inner diameter of the support object at the entrance side opening surface of the support hole becomes smaller as approaching the support hole, and is opened in one radial direction matching the notch. A reduced diameter guide having a substantially U-shape is disposed, and the flange portion at one end of the inter sleeve is reduced in diameter by being pushed into the reduced diameter guide so as to be guided into the support hole. The guide is detached in the direction opposite to the opening direction of the guide.
【０００７】第１乃至第３の何れの特徴のものでも、弾
性ブッシュの圧入後、縮径ガイドをインタスリーブの他
端のフランジ部に邪魔されることなく離脱でき、かく
て、弾性ブッシュを縮径ガイドを用いて支持穴にスムー
ズに圧入できる。In any of the first to third features, after the elastic bush is press-fitted, the diameter reducing guide can be detached without being disturbed by the flange portion at the other end of the inter sleeve, and thus the elastic bush can be contracted. It can be smoothly pressed into the support hole using a diameter guide.
【０００８】ところで、弾性ブッシュの圧入に際して
は、被支持物の支持穴の出口側開口面を固定治具に当接
させて弾性ブッシュの圧入荷重を受けさせる。この場
合、固定治具に、弾性ブッシュの圧入完了で支持穴の出
口から押し出されるインタスリーブの前記一端のフラン
ジ部を受け入れる凹部を凹設するが、支持穴から一端の
フランジ部が押し出されると、該フランジ部がこれに形
成した切欠きの幅方向と平行な方向に拡径しようとして
凹部内面に強く圧接し、固定治具に対する引掛かりを生
ずる。そこで、本発明の第４の特徴によれば、固定治具
に凹設する凹部を前記切欠きの幅方向と平行な方向を長
径方向とする楕円形に形成している。これによれば、支
持穴から押し出された一端のフランジ部の凹部内での拡
径が許容されて、該フランジ部が凹部内面に強く圧接せ
ず、固定治具に対する引掛かりが防止される。When the elastic bush is press-fitted, the outlet side opening surface of the support hole of the supported object is brought into contact with a fixing jig to receive the press-fit load of the elastic bush. In this case, the fixing jig is provided with a concave portion for receiving the flange portion at the one end of the inter sleeve which is pushed out from the outlet of the support hole upon completion of the press-fitting of the elastic bush, but when the flange portion at one end is pushed out from the support hole, The flange portion is strongly pressed against the inner surface of the concave portion in an attempt to expand the diameter in a direction parallel to the width direction of the cutout formed in the flange portion, and catches on the fixing jig. Therefore, according to a fourth feature of the present invention, the concave portion provided in the fixing jig is formed in an elliptical shape whose major axis is a direction parallel to the width direction of the notch. According to this, the diameter of the flange portion at one end pushed out from the support hole is allowed to increase in the concave portion, and the flange portion does not strongly contact the inner surface of the concave portion, thereby preventing the fixing jig from being caught.
【０００９】[0009]
【発明の実施の形態】図１（Ａ）を参照して、１は被支
持物たるサスペンションアームであり、サスペンション
アーム１の端部の支持穴１ａに弾性ブッシュ２を嵌合さ
せている。弾性ブッシュ２は、金属製の内筒２０と、内
筒２０の外周に固着したゴムから成る弾性体２１と、弾
性体２１の径方向中間部に埋設した金属製のインタスリ
ーブ２２とを備えるもので、支持穴１ａの内面に弾性体
２１を直接接触させるようにした外筒レスタイプに構成
されている。そして、内筒２０に軸方向両側から１対の
支軸３，３をその基端のフランジ３ａ，３ａが内筒２０
の両端に当接するように挿入し、各支軸３のフランジ３
ａから外方にのびるブラケット部３ｂをこれに形成した
取付穴３ｃにおいて車体（図示せず）に締結する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1A, reference numeral 1 denotes a suspension arm which is a supported object, and an elastic bush 2 is fitted into a support hole 1a at an end of the suspension arm 1. The elastic bush 2 includes a metal inner cylinder 20, an elastic body 21 made of rubber fixed to the outer periphery of the inner cylinder 20, and a metal intersleeve 22 embedded at a radially intermediate portion of the elastic body 21. Thus, an outer cylinderless type in which the elastic body 21 is brought into direct contact with the inner surface of the support hole 1a is configured. Then, a pair of support shafts 3, 3 are attached to the inner cylinder 20 from both sides in the axial direction.
Into contact with both ends of
A bracket portion 3b extending outward from a is fastened to a vehicle body (not shown) through a mounting hole 3c formed in the bracket portion 3b.
【００１０】弾性体２１は、支持穴１ａに嵌合する筒部
２１ａと、筒部２１ａの中央部内周の周方向複数箇所に
形成した、内筒２０に固着する脚部２１ｂと、支持穴１
ａから軸方向に突出する筒部２１ａの軸方向一端と他端
とに夫々径方向外方に膨出させて形成したストッパ部２
１ｃ，２１ｄとを備えており、筒部２１ａにインタスリ
ーブ２２が両端のストッパ部２１ｃ，２１ｄに達するよ
うに埋設されている。インタスリーブ２２には、軸方向
一端と他端とに夫々各ストッパ部２１ｃ，２１ｄ内で径
方向外方に屈曲するフランジ部２２ａ，２２ｂが形成さ
れている。ここで、一端のフランジ部２２ａ及び一端の
ストッパ部２１ｃは、図２（Ｂ）に示す如く、短径寸法
を支持穴１ａの穴径以下とした楕円形に形成され、ま
た、他端のフランジ部２２ｂ及び他端のストッパ部２１
ｄは、図２（Ｃ）に示す如く、略円形に形成されてい
る。そして、一端のフランジ部２２ａに、図３（Ｂ）に
示す如く、前記楕円形の短径方向両側に位置させて、イ
ンタスリーブ２２の筒状部に亘る切欠き２２ｃ，２２ｃ
を形成すると共に、弾性体２１の筒部２１ａに、図２
（Ａ）及び図３（Ａ）に示す如く、切欠き２２ｃ，２２
ｃと同位相で、一端のストッパ部２１ｃの端面に達する
割り溝２１ｅ，２１ｅを形成し、更に、これら切欠き２
２ｃと割り溝２１ｅとを軸方向一端に向って拡幅する形
状に形成し、一端のフランジ部２２ａ及びストッパ部２
２ｃを前記楕円形の長径方向に縮径可能としている。
尚、本実施形態では、切欠き２２ｃと割り溝２１ｅとを
夫々インタスリーブ２２と筒部２１ａの全長に亘って形
成して、インタスリーブ２２と筒部２１ａとを夫々半割
り形状の２半部に分割しているが、切欠き２２ｃと割り
溝２１ｅとを他端のフランジ部２２ｂ及びストッパ部２
１ｄの手前で終端させて、インタスリーブ２２と筒部２
１ａとを夫々非分割にすることも可能である。The elastic body 21 includes a cylindrical portion 21a fitted into the support hole 1a, leg portions 21b formed at a plurality of circumferential locations on the inner periphery of the central portion of the cylindrical portion 21a, and fixed to the inner cylinder 20;
a stopper portion 2 formed by swelling radially outward at one end and the other end in the axial direction of a cylindrical portion 21a protruding in the axial direction from a.
1c and 21d, and the inter sleeve 22 is embedded in the cylindrical portion 21a so as to reach the stopper portions 21c and 21d at both ends. Flanges 22a and 22b that are bent radially outward in the respective stoppers 21c and 21d are formed at one end and the other end in the axial direction of the inter sleeve 22, respectively. Here, as shown in FIG. 2B, the flange portion 22a at one end and the stopper portion 21c at one end are formed in an elliptical shape having a minor diameter smaller than the diameter of the support hole 1a, and a flange at the other end. Part 22b and stopper part 21 at the other end
d is formed in a substantially circular shape as shown in FIG. Then, as shown in FIG. 3 (B), the notches 22 c, 22 c extending over the cylindrical portion of the inter sleeve 22 are positioned at both ends of the flange 22 a at one end as shown in FIG.
2 and the cylindrical portion 21a of the elastic body 21 is formed as shown in FIG.
As shown in FIG. 3A and FIG.
With the same phase as that of the notch 2c, split grooves 21e, 21e reaching the end face of the stopper portion 21c at one end are formed.
2c and the split groove 21e are formed so as to widen toward one end in the axial direction, and the flange portion 22a at one end and the stopper portion 2 are formed.
2c can be reduced in the major axis direction of the elliptical shape.
In the present embodiment, the notch 22c and the split groove 21e are formed over the entire lengths of the inter sleeve 22 and the cylindrical portion 21a, respectively, and the inter sleeve 22 and the cylindrical portion 21a are each formed into a half-shaped half. The notch 22c and the split groove 21e are divided into a flange 22b and a stopper 2 at the other end.
Terminating just before 1d, the sleeve 22 and the cylinder 2
1a can also be undivided.
【００１１】弾性ブッシュ２を支持穴１ａに嵌合させた
状態では、図１（Ｂ）に示す如く、一端のフランジ部２
２ａの長径方向の外縁部分が支持穴１ａの軸方向投影面
から径方向外方に張り出す。また、他端のフランジ部２
２ｂも支持穴１ａの軸方向投影面から径方向外方に張り
出しており、かくて、一端と他端のフランジ部２２ａ，
２２ｂにより軸方向一方と他方とへの抜けに対する抵抗
力が得られ、抜け荷重が大きくなる。When the elastic bush 2 is fitted in the support hole 1a, as shown in FIG.
An outer edge portion in the major diameter direction of 2a projects radially outward from the axial projection surface of the support hole 1a. The other end of the flange 2
2b also protrudes radially outward from the axial projection surface of the support hole 1a, and thus the flange portions 22a at one end and the other end are provided.
By 22b, a resistance force against detachment in one direction and the other in the axial direction is obtained, and the detachment load increases.
【００１２】弾性ブッシュ２を支持穴１ａに圧入する際
は、図４（Ａ）に示す如く、サスペンションアーム１の
支持穴１ａの出口側開口面を固定治具４に当接させると
共に、サスペンションアーム１の支持穴１ａの入口側開
口面に環状の縮径ガイド５を配置し、弾性ブッシュ２を
一端側から縮径ガイド５を通して支持穴１ａに圧入す
る。ここで、縮径ガイド５は、支持穴１ａに近づくにつ
れて内径が小さくなるように形成されており、一端のフ
ランジ部２２ａ及びストッパ部２１ｃが縮径ガイド５へ
の押し込みで縮径されて支持穴１ａに導き入れられる。
圧入完了状態では、図４（Ｂ）に示す如く、一端のフラ
ンジ部２２ａ及びストッパ部２１ｃが支持穴１ａの出口
から押し出されると共に、他端のフランジ部２２ｂが縮
径ガイド５の支持穴１ａ側の端部近傍に到達して若干縮
径される。ここで、縮径ガイド５は、図４（ｃ）に示す
如く、径方向に開閉自在な２個のセグメント５ａ，５ａ
で構成されており、弾性ブッシュ２の圧入後に両セグメ
ント５ａ，５ａを径方向に開いて、縮径ガイド５を離脱
させる。When the elastic bush 2 is pressed into the support hole 1a, as shown in FIG. 4 (A), the outlet side opening surface of the support hole 1a of the suspension arm 1 is brought into contact with the fixing jig 4, and the suspension arm An annular diameter-reduced guide 5 is arranged on the opening surface of the support hole 1a on the entrance side, and the elastic bush 2 is pressed into the support hole 1a from one end through the diameter-reduced guide 5. Here, the diameter-reducing guide 5 is formed such that the inner diameter becomes smaller as approaching the support hole 1a, and the flange portion 22a and the stopper portion 21c at one end are reduced in diameter by being pushed into the diameter-reducing guide 5 so that the support hole is reduced. 1a.
In the press-fitting completed state, as shown in FIG. 4B, the flange portion 22a at one end and the stopper portion 21c are pushed out from the outlet of the support hole 1a, and the flange portion 22b at the other end is connected to the support hole 1a side of the diameter reducing guide 5. And the diameter is slightly reduced. Here, as shown in FIG. 4 (c), the diameter reducing guide 5 has two segments 5a, 5a which can be opened and closed in the radial direction.
After the elastic bush 2 is press-fitted, the segments 5a, 5a are opened in the radial direction to release the reduced diameter guide 5.
【００１３】また、固定治具４には、支持穴１ａから押
し出された一端のフランジ部２２ａ及びストッパ部２１
ｃを受け入れる凹部４ａが凹設されている。凹部４ａ
は、図４（Ｄ）に示す如く、前記切欠き２２ｃの幅方向
に平行な方向、即ち、一端のフランジ部２２ａ及びスト
ッパ部２１ｃの形状たる楕円形の長径方向を長径方向と
する楕円形に形成されている。かくて、支持穴１ａから
押し出された一端のフランジ部２２ａ及びストッパ部２
１ｃの凹部４ａ内における拡径が許容される。そのた
め、一端のフランジ部２２ａ及びストッパ部２１ｃが凹
部４ａの内面に強く圧接せず、固定治具４に対する引掛
かりが防止される。尚、固定治具４は凹部４ａの短径方
向両側の上面部分で支持穴１ａの出口側開口面に当接
し、圧入荷重を確実に受けられる。The fixing jig 4 has a flange 22a at one end and a stopper 21 which is pushed out of the support hole 1a.
A concave portion 4a for receiving c is provided. Recess 4a
As shown in FIG. 4 (D), the elliptical shape is a direction parallel to the width direction of the notch 22c, that is, the major axis direction is the elliptical shape of the flange 22a at one end and the stopper 21c. Is formed. Thus, the flange portion 22a at one end and the stopper portion 2 extruded from the support hole 1a
The diameter expansion in the recess 4a of 1c is allowed. Therefore, the flange portion 22a and the stopper portion 21c at one end do not strongly press against the inner surface of the concave portion 4a, so that the fixing jig 4 is prevented from being caught. The fixing jig 4 comes into contact with the outlet-side opening surface of the support hole 1a at the upper surface portion on both sides in the minor diameter direction of the concave portion 4a, and can reliably receive the press-fitting load.
【００１４】縮径ガイドは上記のものに限られるもので
はなく、図５（Ａ）（Ｂ）（Ｃ）に示すような縮径ガイ
ド６を用いても良い。この縮径ガイド６は、環状であっ
て、その内周の周方向複数箇所、例えば、一端のフラン
ジ部２２ａ及びストッパ部２１ｃの長径方向両側に、支
持穴１ａに近づくにつれて径方向内方への突出量が大き
くなるガイド突起６ａが突設されており、ガイド突起６
ａにより一端のフランジ部２２ａ及びストッパ部２１ｃ
が縮径される。また、他端のフランジ部２２ｂには、図
５（Ｃ）に示す如く、ガイド突起６ａと同位相で周方向
複数箇所の凹欠部２２ｄが形成されている。かくて、弾
性ブッシュ２の圧入後、縮径ガイド６を軸方向に移動さ
せれば、ガイド突起６ａが凹欠部２２ｄを通過し、縮径
ガイド６を他端のフランジ部２２ｂとの干渉を生ずるこ
となく弾性ブッシュ２から軸方向に離脱できる。The diameter reducing guide is not limited to the above, and a diameter reducing guide 6 as shown in FIGS. 5A, 5B and 5C may be used. The diameter-reducing guide 6 is annular, and is provided at a plurality of locations in the circumferential direction of the inner circumference thereof, for example, at both ends of the flange portion 22a and the stopper portion 21c at one end in the long-diameter direction as it approaches the support hole 1a. A guide protrusion 6a having a large protrusion amount is provided so as to protrude.
a, the flange portion 22a at one end and the stopper portion 21c
Is reduced in diameter. As shown in FIG. 5C, a plurality of recesses 22d in the circumferential direction are formed on the other end of the flange portion 22b in the same phase as the guide protrusion 6a. Thus, if the reduced diameter guide 6 is moved in the axial direction after the elastic bush 2 is press-fitted, the guide projection 6a passes through the concave notch 22d, and the reduced diameter guide 6 interferes with the flange 22b at the other end. It can be separated from the elastic bush 2 in the axial direction without any occurrence.
【００１５】また、図６（Ａ）（Ｂ）（Ｃ）に示すよう
な縮径ガイド７を用いることも可能である。この縮径ガ
イド７は、支持穴１ａに近づくにつれて内径が小さくな
るように形成されており、この点は図４に示した縮径ガ
イド５と同様であるが、図４に示したものと異なり、前
記切欠き２２ｃに合致する径方向一方、即ち、一端のフ
ランジ部２２ａ及びストッパ部２１ｃの短径方向一方に
開放された略Ｕ字状に形成されている。かくて、このも
のでは、弾性ブッシュ２の圧入後、縮径ガイド７をその
開放方向と反対方向、即ち、前記短径方向他方に移動す
ることにより弾性ブッシュ２から離脱できる。尚、図５
の縮径ガイド６と図６の縮径ガイド７との何れを用いる
場合も、図４の縮径ガイド５を用いる場合と同様に、楕
円形の凹部４ａを凹設した固定治具４にサスペンション
アーム１の支持穴１ａの出口側開口面を当接させて、圧
入作業を行う。It is also possible to use a diameter reducing guide 7 as shown in FIGS. 6A, 6B and 6C. The diameter-reducing guide 7 is formed so that the inner diameter decreases as it approaches the support hole 1a, and this point is the same as the diameter-reducing guide 5 shown in FIG. 4, but is different from that shown in FIG. It is formed in a substantially U-shape that is open to one side in the radial direction corresponding to the notch 22c, that is, one side in the short diameter direction of the flange portion 22a and the stopper portion 21c at one end. Thus, in this embodiment, after the elastic bush 2 is press-fitted, the diameter-reduced guide 7 can be separated from the elastic bush 2 by moving the guide 7 in the direction opposite to the opening direction, that is, in the other short-axis direction. FIG.
In the case where either the diameter reducing guide 6 of FIG. 6 or the diameter reducing guide 7 of FIG. 6 is used, as in the case of using the diameter reducing guide 5 of FIG. The press-fitting operation is performed by bringing the outlet side opening surface of the support hole 1a of the arm 1 into contact.
【００１６】以上、サスペンションアーム１の支持穴１
ａに弾性ブッシュ２を圧入する方法について説明した
が、サスペンションアーム以外の被支持物の支持穴への
弾性ブッシュの圧入にも同様に本発明を適用できる。As described above, the support hole 1 of the suspension arm 1
Although the method of press-fitting the elastic bush 2 into a has been described, the present invention can be similarly applied to press-fitting the elastic bush into a support hole of a supported object other than the suspension arm.
【００１７】[0017]
【発明の効果】以上の説明から明らかなように、本発明
によれば、ブッシュ圧入後の縮径ガイドの離脱が可能と
なって、インタスリーブの両端にフランジ部を形成した
外筒レスタイプの弾性ブッシュを被支持物の支持穴に縮
径ガイドを用いてスムーズに圧入でき、また、圧入荷重
を受ける固定治具への一端のフランジ部の引掛かりを防
止でき、圧入作業を良好に行い得られる。As is apparent from the above description, according to the present invention, the diameter-reduced guide can be released after the bush is press-fitted, and the outer cylinder-less type in which flange portions are formed at both ends of the inter sleeve is provided. The elastic bush can be smoothly pressed into the support hole of the supported object using the reduced diameter guide, and the flange at one end can be prevented from being caught by the fixing jig that receives the press-fit load. Can be
【図１】 （Ａ）弾性ブッシュの使用状態の截断側面
図、（Ｂ）図１（Ａ）のIB-IB線截断面図1A is a sectional side view of an elastic bush in a used state, and FIG. 1B is a sectional view taken along line IB-IB of FIG. 1A.
【図２】 （Ａ）上記ブッシュの自由状態の側面図、
（Ｂ）図２（Ａ）の左方から見たブッシュの正面図、
（Ｃ）図２（Ａ）の右方から見たブッシュの背面図2A is a side view of the bush in a free state, FIG.
(B) a front view of the bush seen from the left side of FIG.
(C) Rear view of the bush seen from the right side of FIG. 2 (A)
【図３】 （Ａ）上記ブッシュの自由状態の斜視図、
（Ｂ）インタスリーブの斜視図FIG. 3A is a perspective view of the bush in a free state,
(B) Perspective view of the inter sleeve
【図４】 （Ａ）第１実施形態の縮径ガイドを用いた上
記ブッシュの圧入作業の初期状態を示す截断側面図、
（Ｂ）この圧入作業の完了状態を示す截断側面図、
（Ｃ）図４（Ｂ）の上方から見た平面図、（Ｄ）固定治
具の平面図FIG. 4A is a sectional side view showing an initial state of the press-fitting operation of the bush using the diameter reducing guide of the first embodiment,
(B) a cut-away side view showing a completed state of the press-fitting operation;
(C) Plan view seen from above in FIG. 4 (B), (D) Plan view of fixing jig
【図５】 （Ａ）第２実施形態の縮径ガイドを用いた上
記ブッシュの圧入作業の初期状態を示す截断側面図、
（Ｂ）この圧入作業の完了状態を示す截断側面図、
（Ｃ）図５（Ｂ）の上方から見た平面図FIG. 5A is a sectional side view showing an initial state of the press-fitting operation of the bush using the diameter-reducing guide of the second embodiment,
(B) a cut-away side view showing a completed state of the press-fitting operation;
(C) Plan view seen from above FIG. 5 (B)
【図６】 （Ａ）第３実施形態の縮径ガイドを用いた上
記ブッシュの圧入作業の初期状態を示す截断側面図、
（Ｂ）この圧入作業の完了状態を示す截断側面図、
（Ｃ）図６（Ｂ）の上方から見た平面図FIG. 6A is a cross-sectional side view showing an initial state of the press-fitting operation of the bush using the reduced-diameter guide of the third embodiment,
(B) a cut-away side view showing a completed state of the press-fitting operation;
(C) Plan view seen from above FIG. 6 (B)
１ サスペンションアーム（被支持物） １ａ 支持穴 ２ 弾性ブッシュ ２０ 内筒 ２１ 弾性体 ２２ イン
タスリーブ ２２ａ 一端のフランジ部 ２２ｂ 他
端のフランジ部 ２２ｃ 切欠き ２２ｄ 凹
欠部 ４ 固定治具 ４ａ 凹部 ５ 縮径ガイド ５ａ セグメ
ント ６ 縮径ガイド ６ａ ガイド
突起 ７ 縮径ガイド（Ｕ字状ガイド）DESCRIPTION OF SYMBOLS 1 Suspension arm (supported object) 1a Supporting hole 2 Elastic bush 20 Inner cylinder 21 Elastic body 22 Intersleeve 22a Flange part at one end 22b Flange part at the other end 22c Notch 22d Concave notch 4 Fixing jig 4a Recess 5 Reducing diameter Guide 5a Segment 6 Reduced diameter guide 6a Guide protrusion 7 Reduced diameter guide (U-shaped guide)
フロントページの続き (72)発明者 小川 哲 埼玉県和光市中央１丁目４番１号 株式会 社本田技術研究所内 Ｆターム(参考） 3C030 BB12 BC26 3J048 AA01 BA19 BB03 EA17 3J059 AD02 AE01 BA42 BC06 CC01 EA14 GA02 Continued on the front page (72) Inventor Satoshi Ogawa 1-4-1 Chuo, Wako-shi, Saitama F-term in Honda R & D Co., Ltd. (Reference) 3C030 BB12 BC26 3J048 AA01 BA19 BB03 EA17 3J059 AD02 AE01 BA42 BC06 CC01 EA14 GA02
Claims (4)
被支持物を弾力的に支持するのに用いる弾性ブッシュで
あって、内筒と、内筒の外周に固着した、支持穴の内面
に直接接触する弾性体と、弾性体の径方向中間部に埋設
したインタスリーブとを備え、インタスリーブの両端
に、弾性ブッシュを支持穴に嵌合させた状態で支持穴の
軸方向投影面から径方向外方に張り出すフランジ部を形
成すると共に、両端のフランジ部のうち支持穴に対する
弾性ブッシュの圧入方向先方に位置する一端のフランジ
部の周方向の少なくとも一部にインタスリーブの筒状部
に亘る切欠きを形成して、一端のフランジ部を縮径可能
として成るものを支持穴に圧入する方法において、 被支持物の支持穴の入口側開口面に、支持穴に近づくに
つれて内径が小さくなる環状の縮径ガイドを配置し、イ
ンタスリーブの前記一端のフランジ部を縮径ガイドへの
押し込みで縮径させて支持穴に導き入れるようにすると
共に、 縮径ガイドを径方向に開閉自在な複数のセグメントで構
成して、弾性ブッシュの圧入後にこれらセグメントを径
方向に開く、 ことを特徴とする弾性ブッシュの圧入方法。An elastic bush used to fit in a support hole formed in a supported object to elastically support the supported object, the elastic bush being fixed to an inner cylinder and an outer periphery of the inner cylinder. An elastic body that directly contacts the inner surface of the elastic body, and an intersleeve embedded in a radially intermediate portion of the elastic body, and axial projection of the support hole in a state where the elastic bush is fitted into the support hole at both ends of the intersleeve. A flange portion projecting radially outward from the surface is formed, and at least a part of the flange portion at one end in the circumferential direction of the flange portion at one end located in the press-fitting direction of the elastic bush into the support hole among the flange portions at both ends. In the method of forming a notch over the shape portion and press-fitting into the support hole the one that allows the flange portion at one end to be reduced in diameter, the inner diameter becomes closer to the support hole at the entrance side opening surface of the support hole of the object to be supported. Becomes smaller A plurality of diameter-reduced guides are arranged, and the flange portion at the one end of the inter sleeve is pushed into the diameter-reduced guide so as to be reduced in diameter and guided into a support hole. The elastic bush is press-fitted, and the segments are opened radially after the elastic bush is press-fitted.
被支持物を弾力的に支持するのに用いる弾性ブッシュで
あって、内筒と、内筒の外周に固着した、支持穴の内面
に直接接触する弾性体と、弾性体の径方向中間部に埋設
したインタスリーブとを備え、インタスリーブの両端
に、弾性ブッシュを支持穴に嵌合させた状態で支持穴の
軸方向投影面から径方向外方に張り出すフランジ部を形
成すると共に、両端のフランジ部のうち支持穴に対する
弾性ブッシュの圧入方向先方に位置する一端のフランジ
部の周方向の少なくとも一部にインタスリーブの筒状部
に亘る切欠きを形成して、一端のフランジ部を縮径可能
として成るものを支持穴に圧入する方法において、 被支持物の支持穴の入口側開口面に環状の縮径ガイドを
配置し、縮径ガイドの内周の周方向複数箇所に、支持穴
に近づくにつれて径方向内方への突出量が大きくなるガ
イド突起を突設して、インタスリーブの前記一端のフラ
ンジ部を縮径ガイドへの押し込みでガイド突起により縮
径させて支持穴に導き入れるようにすると共に、 インタスリーブの他端のフランジ部にガイド突起と同位
相で周方向複数箇所の凹欠部を形成し、弾性ブッシュの
圧入後に各ガイド突起が各凹欠部を通過するように縮径
ガイドを軸方向に離脱させる、 ことを特徴とする弾性ブッシュの圧入方法。2. An elastic bush used to fit in a support hole formed in a supported object and elastically support the supported object, the elastic bush being fixed to an inner cylinder and an outer periphery of the inner cylinder. An elastic body that directly contacts the inner surface of the elastic body, and an intersleeve embedded in a radially intermediate portion of the elastic body, and axial projection of the support hole in a state where the elastic bush is fitted into the support hole at both ends of the intersleeve. A flange portion projecting radially outward from the surface is formed, and at least a part of the flange portion at one end in the circumferential direction of the flange portion at one end located in the press-fitting direction of the elastic bush into the support hole among the flange portions at both ends. In the method of forming a notch over the shape of a part and press-fitting a flange part at one end capable of being reduced in diameter into a support hole, an annular diameter-reduced guide is arranged on an inlet-side opening surface of the support hole of a supported object. And inside the reduced diameter guide At a plurality of locations in the circumferential direction, projecting guide projections whose radially inward projecting amount increases as approaching the support holes are protruded, and the flange portion at one end of the inter sleeve is pushed into the reduced diameter guide by the guide projection. In addition to reducing the diameter, it is guided into the support hole, and a plurality of concave portions in the circumferential direction are formed in the flange portion at the other end of the inter sleeve in the same phase as the guide protrusion, and each guide protrusion is pressed after the elastic bush is press-fitted. A method for press-fitting an elastic bush, wherein the diameter-reducing guide is detached in the axial direction so as to pass through each concave notch.
被支持物を弾力的に支持するのに用いる弾性ブッシュで
あって、内筒と、内筒の外周に固着した、支持穴の内面
に直接接触する弾性体と、弾性体の径方向中間部に埋設
したインタスリーブとを備え、インタスリーブの両端
に、弾性ブッシュを支持穴に嵌合させた状態で支持穴の
軸方向投影面から径方向外方に張り出すフランジ部を形
成すると共に、両端のフランジ部のうち支持穴に対する
弾性ブッシュの圧入方向先方に位置する一端のフランジ
部の周方向の少なくとも一部にインタスリーブの筒状部
に亘る切欠きを形成して、一端のフランジ部を縮径可能
として成るものを支持穴に圧入する方法において、 被支持物の支持穴の入口側開口面に、支持穴に近づくに
つれて内径が小さくなり、且つ、前記切欠きに合致する
径方向一方に開放された略Ｕ字状の縮径ガイドを配置
し、インタスリーブの前記一端のフランジ部を縮径ガイ
ドへの押し込みで縮径させて支持穴に導き入れるように
すると共に、 弾性ブッシュの圧入後に縮径ガイドを該ガイドの開放方
向と反対方向に離脱させる、 ことを特徴とする弾性ブッシュの圧入方法。3. An elastic bush, which is fitted into a support hole formed in a supported object to elastically support the supported object, the elastic bush being fixed to an inner cylinder and an outer periphery of the inner cylinder. An elastic body that directly contacts the inner surface of the elastic body, and an intersleeve embedded in a radially intermediate portion of the elastic body, and axial projection of the support hole in a state where the elastic bush is fitted into the support hole at both ends of the intersleeve. A flange portion projecting radially outward from the surface is formed, and at least a part of the flange portion at one end in the circumferential direction of the flange portion at one end located in the press-fitting direction of the elastic bush into the support hole among the flange portions at both ends. In the method of forming a notch over the shape portion and press-fitting into the support hole the one that allows the flange portion at one end to be reduced in diameter, the inner diameter becomes closer to the support hole at the entrance side opening surface of the support hole of the object to be supported. Becomes smaller In addition, a substantially U-shaped diameter-reducing guide that is open to one side in the radial direction that matches the notch is arranged, and the flange portion at one end of the inter sleeve is pressed into the diameter-reducing guide to reduce the diameter, thereby forming a support hole. A method of press-fitting an elastic bush, wherein the reduced-diameter guide is separated in a direction opposite to a direction in which the guide is opened after the elastic bush is press-fitted.
被支持物を弾力的に支持するのに用いる弾性ブッシュで
あって、内筒と、内筒の外周に固着した、支持穴の内面
に直接接触する弾性体と、弾性体の径方向中間部に埋設
したインタスリーブとを備え、インタスリーブの両端
に、弾性ブッシュを支持穴に嵌合させた状態で支持穴の
軸方向投影面から径方向外方に張り出すフランジ部を形
成すると共に、両端のフランジ部のうち支持穴に対する
弾性ブッシュの圧入方向先方に位置する一端のフランジ
部の周方向の少なくとも一部にインタスリーブの筒状部
に亘る切欠きを形成して、一端のフランジ部を縮径可能
として成るものを支持穴に圧入する方法において、 被支持物の支持穴の出口側開口面を固定治具に当接させ
て弾性ブッシュの圧入荷重を受けさせるようにし、 固定治具に、弾性ブッシュの圧入完了で支持穴の出口か
ら押し出されるインタスリーブの前記一端のフランジ部
を受け入れる凹部を凹設すると共に、該凹部を前記切欠
きの幅方向に平行な方向を長径方向とする楕円形に形成
する、 ことを特徴とする弾性ブッシュの圧入方法。4. An elastic bush used to fit in a support hole formed in a supported object to elastically support the supported object, wherein the elastic bush is fixed to an inner cylinder and an outer periphery of the inner cylinder. An elastic body that directly contacts the inner surface of the elastic body, and an intersleeve embedded in a radially intermediate portion of the elastic body, and axial projection of the support hole in a state where the elastic bush is fitted into the support hole at both ends of the intersleeve. A flange portion projecting radially outward from the surface is formed, and at least a part of the flange portion at one end in the circumferential direction of the flange portion at one end located in the press-fitting direction of the elastic bush into the support hole among the flange portions at both ends. In the method of forming a notch over the shape portion and press-fitting the one having a flange portion of one end capable of being reduced in diameter into the support hole, the outlet side opening surface of the support hole of the supported object is brought into contact with the fixing jig. Loading of elastic bush The fixing jig is provided with a concave portion for receiving the flange portion at one end of the inter sleeve which is pushed out from the outlet of the support hole upon completion of the press-fitting of the elastic bush, and the concave portion is formed in the width direction of the notch. A press-fitting method for an elastic bush, wherein the elastic bush is formed in an elliptical shape whose major axis extends in a direction parallel to the elastic bush.
Priority Applications (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000236565A JP2002046031A (en) | 2000-08-04 | 2000-08-04 | Press-in method for elastic bush |
| DE60131978T DE60131978T2 (en) | 2000-08-04 | 2001-07-12 | ELASTIC SOCKET AND METHOD FOR PRESSURE FEEDING OF AN ELASTIC SOCKET |
| CNB018131999A CN1211595C (en) | 2000-08-04 | 2001-07-12 | Elastic bush and method of press-fitting elastic bush |
| MXPA03001020A MXPA03001020A (en) | 2000-08-04 | 2001-07-12 | ELASTIC BUSHING AND PRESSURE INSERTION METHOD OF AN ELASTIC BUSHING. |
| AU2001269511A AU2001269511B2 (en) | 2000-08-04 | 2001-07-12 | Resilient Bush and Method of Pressure-Insertion of a Resilient Bush |
| PCT/JP2001/006057 WO2002012748A1 (en) | 2000-08-04 | 2001-07-12 | Elastic bush and method of press-fitting elastic bush |
| AU6951101A AU6951101A (en) | 2000-08-04 | 2001-07-12 | Elastic bush and method of press-fitting elastic bush |
| EP01947991A EP1306573B1 (en) | 2000-08-04 | 2001-07-12 | Resilient bush and method of pressure-insertion of a resilient bush |
| CA002416641A CA2416641C (en) | 2000-08-04 | 2001-07-12 | Resilient bush and method of pressure-insertion of a resilient bush |
| BRPI0112916-3A BR0112916B1 (en) | 2000-08-04 | 2001-07-12 | resilient bushing and pressure insertion method of a resilient bushing. |
| KR1020037000662A KR100610547B1 (en) | 2000-08-04 | 2001-07-12 | Elastic bush and method of press-fitting elastic bush |
| US10/332,981 US6854723B2 (en) | 2000-08-04 | 2001-07-12 | Elastic bush and method of press-fitting elastic bush |
| TW090118442A TW505750B (en) | 2000-08-04 | 2001-07-27 | Resilient bush and method of pressure-insertion of a resilient bush |
| MYPI20013644A MY128564A (en) | 2000-08-04 | 2001-08-02 | Resilient bush and method of pressure-insertion of a resilient bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000236565A JP2002046031A (en) | 2000-08-04 | 2000-08-04 | Press-in method for elastic bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002046031A true JP2002046031A (en) | 2002-02-12 |
Family
ID=18728590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000236565A Pending JP2002046031A (en) | 2000-08-04 | 2000-08-04 | Press-in method for elastic bush |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002046031A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101326486B1 (en) | 2011-11-29 | 2013-11-08 | 현대자동차주식회사 | Hydro bushing |
| CN104015038A (en) * | 2014-05-21 | 2014-09-03 | 苏州创丰精密五金有限公司 | Pressing jig for main-shaft ferrule |
| CN105526292A (en) * | 2016-01-14 | 2016-04-27 | 苏州成科自控设备有限公司 | Damping system for electronic device |
| CN105556160A (en) * | 2013-11-15 | 2016-05-04 | 宝马股份公司 | Functional component, in particular for a motor vehicle, method for producing a functional component, and a motor vehicle comprising a functional component |
| CN106271420A (en) * | 2016-08-26 | 2017-01-04 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of nuclear power elastic jacket |
| CN107598527A (en) * | 2017-09-30 | 2018-01-19 | 无锡康柏斯机械科技有限公司 | Bushing press-mounting positioner |
| CN108246540A (en) * | 2018-03-20 | 2018-07-06 | 安徽宁国中鼎模具制造有限公司 | A kind of modified oil spout reducing clamp |
| CN108788692A (en) * | 2018-09-05 | 2018-11-13 | 银川西部大森数控技术有限公司 | Bushing necking is oriented to press-loading apparatus |
| CN109500575A (en) * | 2018-11-15 | 2019-03-22 | 盐城市华悦汽车部件有限公司 | A kind of bushing assembling equipment of automobile hanging lower swing arm |
-
2000
- 2000-08-04 JP JP2000236565A patent/JP2002046031A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101326486B1 (en) | 2011-11-29 | 2013-11-08 | 현대자동차주식회사 | Hydro bushing |
| CN105556160A (en) * | 2013-11-15 | 2016-05-04 | 宝马股份公司 | Functional component, in particular for a motor vehicle, method for producing a functional component, and a motor vehicle comprising a functional component |
| CN104015038A (en) * | 2014-05-21 | 2014-09-03 | 苏州创丰精密五金有限公司 | Pressing jig for main-shaft ferrule |
| CN105526292A (en) * | 2016-01-14 | 2016-04-27 | 苏州成科自控设备有限公司 | Damping system for electronic device |
| CN106271420A (en) * | 2016-08-26 | 2017-01-04 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of nuclear power elastic jacket |
| CN107598527A (en) * | 2017-09-30 | 2018-01-19 | 无锡康柏斯机械科技有限公司 | Bushing press-mounting positioner |
| CN108246540A (en) * | 2018-03-20 | 2018-07-06 | 安徽宁国中鼎模具制造有限公司 | A kind of modified oil spout reducing clamp |
| CN108788692A (en) * | 2018-09-05 | 2018-11-13 | 银川西部大森数控技术有限公司 | Bushing necking is oriented to press-loading apparatus |
| CN108788692B (en) * | 2018-09-05 | 2024-05-03 | 银川西部大森数控技术有限公司 | Bushing necking guide press-fitting device |
| CN109500575A (en) * | 2018-11-15 | 2019-03-22 | 盐城市华悦汽车部件有限公司 | A kind of bushing assembling equipment of automobile hanging lower swing arm |
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