WO2014034299A1 - オイルシールの圧入装置 - Google Patents
オイルシールの圧入装置 Download PDFInfo
- Publication number
- WO2014034299A1 WO2014034299A1 PCT/JP2013/069144 JP2013069144W WO2014034299A1 WO 2014034299 A1 WO2014034299 A1 WO 2014034299A1 JP 2013069144 W JP2013069144 W JP 2013069144W WO 2014034299 A1 WO2014034299 A1 WO 2014034299A1
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- WO
- WIPO (PCT)
- Prior art keywords
- oil seal
- press
- hammer
- fitting device
- air
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/08—Machines for placing washers, circlips, or the like on bolts or other members
- B23P19/084—Machines for placing washers, circlips, or the like on bolts or other members for placing resilient or flexible rings, e.g. O-rings, circlips
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53796—Puller or pusher means, contained force multiplying operator
- Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator
Definitions
- the present invention relates to an oil seal press-fitting device used for press-fitting an oil seal into a structure such as a crankcase in an assembly line of an automobile engine, for example.
- Patent Document 1 Conventionally, as this type of press-fitting device, for example, there is one described in Patent Document 1.
- the press-fitting device of Patent Document 1 presses a cylindrical object into the opening of a sleeve.
- the cylindrical object has a large-diameter portion that is press-fitted into the sleeve, an intermediate flange portion, and a small-diameter portion.
- the press-fitting device is provided with a negative pressure introduction hole that constitutes a negative pressure supply means and a tail shaft having a support hole, and a negative diameter is applied to the collar portion with the small diameter portion inserted into the support hole. Then, the cylindrical object is sucked and held. Then, by moving the tail shaft forward while the cylindrical object is sucked and held, the cylindrical object is pressed into the opening of the sleeve.
- the above-mentioned conventional press-fitting device can suck and hold it well if the cylindrical object is a hard material such as metal and has a simple shape.
- a conventional press-fitting device such as an oil seal, whose outer side is made of a soft material and has a complicated shape, the oil seal is likely to be deformed and difficult to adsorb. It was difficult to apply to.
- the present invention has been made in view of the above-described conventional situation, and can securely hold an oil seal having a complicated shape without deformation, and press-fits the oil seal into a structure well.
- An object of the present invention is to provide an oil seal press-fitting device.
- An oil seal press-fitting device is a device for press-fitting an oil seal having a fixed part with a hard ring embedded therein and a lip part protruding on either the inner peripheral side or the outer peripheral side of the fixed part into a structure. It is.
- the press-fitting device includes an air hammer having a hammer head for mounting an oil seal, and the hammer head of the air hammer has a pressurizing portion that comes into contact with a fixed portion of the oil seal and a holding portion that comes into contact with a lip portion of the oil seal.
- a negative pressure space is formed between the pressurizing unit and the holding unit and the oil seal.
- the press-fitting device has a configuration in which the hammer head is provided with an air suction path having one end opened to the negative pressure space and the other end connected to the air suction means, and the above configuration solves the conventional problem. As a means for.
- the oil seal press-fitting device of the present invention adopts the above-described configuration, so that the oil seal having a complicated shape can be reliably adsorbed and held without being deformed, and the oil seal can be press-fitted well into the structure. Can do.
- FIG. 4 is a cross-sectional view (A) to (D) of each main part for explaining an oil seal mounting process.
- FIG. 4 is a cross-sectional view (A) to (D) of each main part for explaining the press-fitting process of the oil seal. It is a timing chart explaining operation
- the oil seal press-fitting device shown in FIG. 1 and FIG. 2 includes an oil seal S having a fixed portion F in which a hard ring R is embedded, and a lip portion L protruding on either the inner peripheral side or the outer peripheral side of the fixed portion F. Is a device for press-fitting this into the structure A.
- the press-fitting device of this embodiment press-fits an oil seal S into a through hole of a crankshaft in a crankcase of an automobile engine. Therefore, the structure A shown in FIG. 2 is a crankcase, and the oil seal S is press-fitted into the through hole B thereof.
- the oil seal S has a fixed portion F in which a hard ring R having an L-shaped cross section is embedded, and a lip portion L protruding on the inner peripheral side, and is fixed.
- the part F and the lip part L have a substantially concave cross-sectional shape.
- the hard ring R is made of, for example, stainless steel, and the oil seal S is made of synthetic rubber.
- the above press-fitting device includes an air hammer AH having a hammer head 1 for mounting an oil seal.
- the air hammer AH in the illustrated example is arranged in a posture in which the hammer head 1 is directed downward and the axial direction is vertical.
- the air hammer AH has a conventionally known basic configuration, and is driven by a driving device 5 including a valve 2, a regulator 3, an air supply source (air cylinder) 4, and the like.
- the oil seal press-fitting device includes a pressurization unit 6 in which the hammer head 1 of the air hammer AH abuts on the fixing unit F of the oil seal S and a holding unit 7 in contact with the lip L of the oil seal S.
- a negative pressure space 8 is formed between the pressurizing unit 6 and the holding unit 7 and the oil seal S.
- the protruding holding portions 7 are arranged concentrically with each other. Therefore, the pressurizing unit 6, the holding unit 7, and the negative pressure space 8 are formed over the entire circumference.
- the oil seal S since the oil seal S has a substantially concave cross-sectional shape as described above, the negative pressure space 8 is formed using the concave shape.
- the annular protrusion 9 enters the negative pressure space 8 as shown in part of the oil seal on the left side of FIG.
- the oil seal press-fitting device is provided with an air suction path 11 having one end opened to the negative pressure space 8 and the other end connected to the air suction means 10 in the hammer head 1.
- the air suction means 10 is, for example, a vacuum pump.
- the air suction path 11 is formed along the axial direction of the hammer head 1, and one end (lower end) thereof is open at the tip of the annular protrusion 9. Thereby, when the oil seal S is attached to the hammer head 1, one end (lower end) of the air suction path 11 is opened to the negative pressure space 8.
- the hammer head 1 has the holding portion 7 and is interposed between the holding member 1B divided from the head main body 1A, and the head main body 1A and the holding member 1B.
- An adjustment member 1C is provided.
- the adjusting member 1C is interposed between the head main body 1A and the holding member 1B in the axial direction of the hammer head 1, that is, between the upper and lower sides.
- the holding member 1B and the adjustment member 1C are both made of resin, and the adjustment member 1C is formed of a resin having a lower hardness than the holding member 1B.
- the oil seal press-fitting device includes an air hammer advance / retreat driving means 21 and an air hammer positioning means 22.
- the air hammer advance / retreat driving means 21 drives the air hammer AH to advance / retreat in the axial direction.
- a hydraulic cylinder can be used. In this embodiment, since the hammer head H faces downward, the forward movement of the air hammer AH is lowered. And the retreat is a rise.
- the air hammer positioning means 22 stops the movement of the air hammer AH with respect to the set position of the oil seal S and the set position of the structure A shown in FIG. 2, for example, a drive mechanism including a hydraulic cylinder and a ball screw. Can be used. That is, the air hammer positioning means 22 reciprocates between the set position of the oil seal S indicated by the solid line in FIG. 2 and the set position of the structure A indicated by the phantom line in FIG.
- FIGS. 3A to 3D and FIGS. 4A to 4D correspond to operations 1 to 8 in the timing chart shown in FIG.
- the press-fitting device moves the air hammer AH from the set position of the oil seal S by the air hammer positioning means 22 as shown in FIGS. 3 (D) to 4 (A) and 4 and 5 in FIG. Stop at the set position of the structure A (from the backward movement in the hammer movement of FIG. 5).
- the press-fitting device lowers the hammer head 1 as shown in FIGS. 4B and 6 in FIG. 5, and when the hammer head 1 reaches the lower limit as shown in FIG.
- the air hammer AH is operated to press-fit the oil seal S into the through hole B of the structure A. That is, the press-fitting device press-fits the oil seal S into the through hole B by pressurizing the fixing portion F in which the hard ring R is embedded with the pressurizing unit 6 of the hammer head 1.
- the press-fitting device stabilizes the press-fitted state so that the oil seal S fits into the through hole B by operating the timer of the air suction means 10 and continuing the ON state for a predetermined time as shown in 7 of FIG. After a predetermined time has elapsed, the air suction means 10 is turned off. 4D and 8 in FIG. 5, the press-fitting device raises the hammer head 1 to finish a series of press-fitting operations, and the air hammer AH is returned to the original position indicated by a solid line in FIG. After returning, perform the next press-fitting work.
- the hammer head 1 has no portion that engages with the inside of the oil seal S, and the pressurizing unit 6 and the holding unit 7 of the hammer head 1 are oiled. Since the suction portion is held in contact with the fixing portion F of the seal S and the upper surface side of the lip portion L, there is no fear that the lip portion L is deformed to be twisted.
- the press-fitting device forms a negative pressure space 8 over the entire circumference between the hammer head 1 and the oil seal S, and the oil seal S is adsorbed and held by reducing the negative pressure space 8.
- the seal S can be sucked and held satisfactorily.
- the outer side is a soft material and the shape is complicated like the oil seal S.
- the axial direction is set to a vertical posture, a portion that is not adsorbed may hang down, and thus there is a need for suction at a plurality of locations, which complicates the negative pressure introduction path.
- the press-fitting device sucks and holds the oil seal S using the negative pressure space 8, so that the negative pressure can be easily reduced over the entire circumference of the oil seal S using only one air suction path 11. Can act.
- the press-fitting device can simplify the negative pressure introduction path in the hammer head 1 and reliably hold the oil seal S by suction even when the axial direction of the hammer head 1 is vertical as shown in FIG. can do.
- the oil seal press-fitting device of the present invention can reliably hold the oil seal S having a complicated shape without deforming it, and can press the oil seal S into the structure A well. Can do.
- the press-fitting device employs the hammer head 1 including the head main body 1A, the holding member 1B, and the adjustment member 1C formed of a resin having a hardness lower than that of the holding member 1B.
- the deformation can be absorbed by the adjustment member 1C.
- the holding member 1B always comes into close contact with the oil seal S, and the suction holding function can be enhanced.
- high wear resistance can be maintained.
- the above-described press-fitting device can automate both the installation work of the oil seal S and the press-fitting work by adopting the air hammer advance / retreat driving means 21. Furthermore, the press-fitting device employs the air hammer positioning means 22 to enable the process of attaching the oil seal S and the process of press-fitting work, and in combination with the air hammer advance / retreat drive means 21, It can be applied to work robots.
- the configuration of the oil seal press-fitting device of the present invention is not limited to the above embodiment, and the details of the configuration can be changed as appropriate without departing from the gist of the present invention.
- the oil seal S since the oil seal S has a substantially concave cross-sectional shape, the negative pressure space 8 is formed by using the shape, but a concave portion is formed directly on the hammer head 1. This can be used as a negative pressure space.
- the oil seal press-fitting device is intended for an oil seal having a lip portion protruding on either the inner peripheral side or the outer peripheral side of the fixed portion. Therefore, in the case of the oil seal S having the lip portion L inside the fixed portion F as in the above embodiment, the oil seal S is press-fitted into the through hole B of the structure A, but the lip portion is outside the fixed portion. In the case of an oil seal having the same, it is press-fitted outside the cylindrical portion of the structure. Even in such a case, it is possible to obtain the same operations and effects as in the above-described embodiment only by reversing the positional relationship between the pressurizing unit and the holding unit in the hammer head.
- Air hammer A Structure F Fixed part L Lip part R Hard ring S Oil seal 1 Hammer head 1A Head body 1B Holding member 1C Adjusting member 6 Pressurizing part 7 Holding part 8 Negative pressure space 10 Air suction means 11 Air suction path 21 Air hammer Advance / retreat driving means 22 Air hammer positioning means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Sealing With Elastic Sealing Lips (AREA)
Abstract
Description
図1及び図2に示すオイルシールの圧入装置は、硬質リングRを埋設した固定部Fと、固定部Fの内周側及び外周側のいずれか一方に突出するリップ部Lを有するオイルシールSを対象とし、これを構造物Aに圧入するための装置である。
A 構造物
F 固定部
L リップ部
R 硬質リング
S オイルシール
1 ハンマヘッド
1A ヘッド本体
1B 保持部材
1C 調整部材
6 加圧部
7 保持部
8 負圧用空間
10 空気吸引手段
11 空気吸引経路
21 エアハンマ進退駆動手段
22 エアハンマ位置決め手段
Claims (4)
- 硬質リングを埋設した固定部と、固定部の内周側及び外周側のいずれか一方に突出するリップ部を有するオイルシールを構造物に圧入するための装置であって、
オイルシール装着用のハンマヘッドを有するエアハンマを備え、
エアハンマのハンマヘッドが、オイルシールの固定部に当接する加圧部と、オイルシールのリップ部に当接する保持部を有すると共に、加圧部と保持部との間においてオイルシールとの間に負圧用空間を形成し、
前記ハンマヘッドに、一端部を負圧用空間に開放し且つ他端部を空気吸引手段に接続した空気吸引経路を設けたことを特徴とするオイルシールの圧入装置。 - 前記ハンマヘッドが、保持部を有してヘッド本体から分割した保持部材と、ヘッド本体と保持部材との間に介装する調整部材を備え、
前記調整部材が、保持部材よりも硬度が低い樹脂で形成してあることを特徴とする請求項1に記載のオイルシールの圧入装置。 - エアハンマを軸線方向に進退駆動するエアハンマ進退駆動手段を備えたことを特徴とする請求項1又は2に記載のオイルシールの圧入装置。
- オイルシールのセット位置及び構造物のセット位置に対して、エアハンマを移動停止させるエアハンマ位置決め手段を備えたことを特徴とする請求項1~3のいずれか1項に記載のオイルシールの圧入装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/423,332 US10099327B2 (en) | 2012-08-28 | 2013-07-12 | Device for press-fitting oil seal |
JP2014532872A JP5843226B2 (ja) | 2012-08-28 | 2013-07-12 | オイルシールの圧入装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2012-187605 | 2012-08-28 | ||
JP2012187605 | 2012-08-28 |
Publications (1)
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WO2014034299A1 true WO2014034299A1 (ja) | 2014-03-06 |
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PCT/JP2013/069144 WO2014034299A1 (ja) | 2012-08-28 | 2013-07-12 | オイルシールの圧入装置 |
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US (1) | US10099327B2 (ja) |
JP (1) | JP5843226B2 (ja) |
WO (1) | WO2014034299A1 (ja) |
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CN104476164A (zh) * | 2014-10-28 | 2015-04-01 | 芜湖世特瑞转向系统有限公司 | 转向机壳体内油封安装设备及其安装方法 |
CN106734630A (zh) * | 2017-01-19 | 2017-05-31 | 遵义迪生电子科技有限公司 | 一种环扣治具 |
CN111660247A (zh) * | 2020-06-19 | 2020-09-15 | 广东电网有限责任公司 | 一种油封杯的拆卸装置 |
CN111805204A (zh) * | 2020-07-06 | 2020-10-23 | Oppo(重庆)智能科技有限公司 | 压合工装 |
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WO2019157640A1 (en) * | 2018-02-13 | 2019-08-22 | Abb Schweiz Ag | Apparatuses and methods for separating, feeding and mounting o-rings |
FR3079154B1 (fr) * | 2018-03-21 | 2020-02-28 | Psa Automobiles Sa | Procede de montage d’un joint a levre avec un manchon de protection retire par une depression |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN104476164A (zh) * | 2014-10-28 | 2015-04-01 | 芜湖世特瑞转向系统有限公司 | 转向机壳体内油封安装设备及其安装方法 |
CN106734630A (zh) * | 2017-01-19 | 2017-05-31 | 遵义迪生电子科技有限公司 | 一种环扣治具 |
CN111660247A (zh) * | 2020-06-19 | 2020-09-15 | 广东电网有限责任公司 | 一种油封杯的拆卸装置 |
CN111805204A (zh) * | 2020-07-06 | 2020-10-23 | Oppo(重庆)智能科技有限公司 | 压合工装 |
CN111805204B (zh) * | 2020-07-06 | 2022-01-25 | Oppo(重庆)智能科技有限公司 | 压合工装 |
Also Published As
Publication number | Publication date |
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US10099327B2 (en) | 2018-10-16 |
JP5843226B2 (ja) | 2016-01-13 |
JPWO2014034299A1 (ja) | 2016-08-08 |
US20150224613A1 (en) | 2015-08-13 |
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