KR20150019424A - Exchange apparatus of the mounting bushing of lower arm of vehicle - Google Patents

Exchange apparatus of the mounting bushing of lower arm of vehicle Download PDF

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Publication number
KR20150019424A
KR20150019424A KR20130096283A KR20130096283A KR20150019424A KR 20150019424 A KR20150019424 A KR 20150019424A KR 20130096283 A KR20130096283 A KR 20130096283A KR 20130096283 A KR20130096283 A KR 20130096283A KR 20150019424 A KR20150019424 A KR 20150019424A
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KR
South Korea
Prior art keywords
bushing
mounting bushing
lower arm
mounting
pushing block
Prior art date
Application number
KR20130096283A
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Korean (ko)
Inventor
정해수
Original Assignee
정해수
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 정해수 filed Critical 정해수
Priority to KR20130096283A priority Critical patent/KR20150019424A/en
Publication of KR20150019424A publication Critical patent/KR20150019424A/en

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    • 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
    • B23P19/02—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 connecting objects by press fit or for detaching same
    • B23P19/027—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 connecting objects by press fit or for detaching same using hydraulic or pneumatic means

Abstract

The present invention relates to an apparatus for replacing a mounting bushing, which can conveniently replace a bushing of a control arm of a vehicle with a simple structure. The apparatus for replacing a mounting bushing comprises: a support board (10); a hydraulic cylinder (12) which is vertically installed so that a piston rod (13) can stretch upward on the support board (10); a support frame (14) which is mounted in the support board (10) or the hydraulic cylinder (12) and surrounds a moving path of the piston rod (13); a seating support unit (15) which is installed on the top of the hydraulic cylinder (12) so that the piston rod (13) can pass; a cylindrical jig (16) which is detachably coupled to the seating support unit (15) and where a bush housing (4) of a lower arm (1) is seated, and wherein a hollow space is formed; and an upper pushing block (18) which is extended downward from the upper part of the support frame at a position aligned with the cylindrical jig (16), and pushes a mounting bushing (3) to the inside of the cylindrical jig (16) through pressurization by being in contact with the mounting bushing (3). Therefore, in the provided apparatus for replacing a mounting bushing, the top of the support frame (14) is placed at a lower position than the top of the lower arm (1) when seating the bushing housing (4) of the lower arm (1) in the cylindrical jig (16).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bushing for a vehicle,

The present invention relates to a control arm mounting bushing replacement apparatus for a vehicle, and more particularly, to a bushing replacement apparatus for a control arm of a vehicle, which is capable of efficiently removing a worn bushing from a lower arm without interfering with a lower arm while having a simple structure, To a control arm mounting bushing replacement apparatus for a vehicle of a new structure.

The control arm of the vehicle is a suspension unit for connecting the vehicle body frame and the axle of the vehicle, and comprises a lower arm and an upper arm. 1, one end of the lower arm 1 is connected to the vehicle body frame and the other end is connected to the lower side of the knuckle arm 2 to support the axle and to steer the wheel . The ring-shaped bushing housing 4 is integrally formed at its center portion. The ring-shaped bushing housing 4 is provided with elasticity (not shown) And a mounting bushing 3, which is made of rubber and into which the metal tube 5 is inserted, is press-fitted.

However, if the mounting bushing 3 of the lower arm 1 is eccentrically pressed and deformed when the automobile is used for a long period of time, noise of the vehicle body is increased and the ride feeling is lowered. If the mounting bushing 3 of the lower arm 1 is worn or deformed, the mounting bushing 3 must be replaced. However, depending on the type of vehicle, it is difficult to remove the mounting bushing 3 from the lower arm 1 and replace it. It is necessary to replace the entire arm 1 inevitably so that the parts cost and the repair cost are increased.

FIG. 2 is a conventional press apparatus for removing a mounting bushing of a lower arm 1. A hydraulic cylinder 7 with a pressure head 8 mounted thereon is provided on a rectangular support frame 6, A cylindrical jig 9 is provided below the frame 6. The mounting bushing 3 of the lower arm 1 is placed on the cylindrical jig 9 and the hydraulic cylinder 7 is lowered and the mounting bushing 3 is pressed downward by the pressing head 8 to be removed. In this case, the arm extension portion of the lower arm 1 abuts against the horizontal frame at the upper portion of the support frame 6 to interfere with the mounting bushing 3, The mounting bushing 3 can not be properly positioned on the mounting bushing 8, and thus the mounting bushing 3 can not be easily removed. Accordingly, even if only the mounting bushing 3 is damaged, it is inevitably necessary to replace the entirety of the arm 1, which raises a problem of unnecessarily increasing the repair cost or the parts ratio due to vehicle maintenance.

Published Utility Model No. 1997-12460

The present invention has been proposed in view of the problem of replacing the control arm of the conventional automobile as described above, particularly the mounting bushing of the lower arm. The present invention is applied to a vehicle equipped with a low- It is an object of the present invention to provide a bushing replacing apparatus for a control arm of a vehicle having a new structure that can effectively remove a bushing without interference and easily mount a new mounting bushing.

According to an aspect of the present invention, a cylindrical bushing housing 4 at a central portion of a bending-extending body is provided with a mounting bushing 3, into which a metal tube 5 is inserted, from a lower arm 1 to which a mounting bushing 3 is press- (10), a hydraulic cylinder (12) installed upright so that the piston rod (13) is extended upwardly on the support base (10), and a control arm mounting bushing replacement device A support frame 14 mounted on the support pedestal 10 or the hydraulic cylinder 12 so as to surround the movement path of the piston rod 13 and a piston rod 13 disposed on the upper end of the hydraulic cylinder 12 A cylindrical jig 16 to which the bushing housing 4 of the lower arm 1 is seated and hollow inside and which is detachably connected to the seat support 15; Extends downwardly from the top of the support frame 14 in a position aligned with the support frame 16 And an upper pushing block 18 for pressing the mounting bushing 3 against the mounting bushing 3 and pushing the mounting bushing 3 into the interior of the cylindrical jig 16. The bushing housing 4 of the lower arm 1 Wherein an upper end of the support frame (14) is positioned lower than an upper end of the lower arm (1) when the support frame (14) is mounted on the cylindrical jig (16).

According to another aspect of the present invention, a flat circular groove 19 is formed on the bottom surface of the upper pushing block 18 so as to be fitted to the outside of the flatly deformed metal tube 5 of the mounting bushing 3 A control arm mounting bushing replacing device for a control arm of an automobile is provided.

According to another aspect of the present invention, there is further provided a bushing assembly adapter 20 detachably coupled to a bottom surface of the upper pushing block 18 and having a diameter larger than that of the upper end of the upper pushing block 18 A control arm mounting bushing replacement device for a vehicle is provided.

According to the present invention described above, in the construction of the mounting bushing replacing apparatus for separating and connecting the mounting bushing 3 of the lower arm 1 of the automobile, the hydraulic cylinder 12 is extended so as to be upwardly extended on the support base 10, And a support frame 14 mounted on the support pedestal 10 or the hydraulic cylinder 12. A seating support portion 15 provided on the upper end of the hydraulic cylinder 12 for allowing the piston rod 13 to pass therethrough, A cylindrical jig 16 which is detachably coupled to the lower frame 15 and on which the bushing housing 4 of the lower arm 1 is mounted and an upper pushing block 18 extending downward at the upper end of the support frame 14, The upper end of the support frame 14 is made lower than the upper end height of the lower arm 1 in the state where the lower arm 1 is engaged, Even if the mounting bushing 3 of the lower arm 1 is pushed toward the cylindrical jig 16 in the support frame 14, This did not interfere with the arm part of the support frame 14, it is possible to effectively remove the mounting bushing (3). This is because the hydraulic cylinder 12 is installed on the upper part of the apparatus and the piston rod is not extended downward so that the upper structure of the apparatus does not need to install the hydraulic cylinder 12 so that the size of the support frame of the apparatus can be made small Interference between the lower arm 1 and the support frame or the support frame 14 can be avoided.

According to the present invention, the upper bushing block 18, which downwardly presses the mounting bushing 3 of the lower arm 1, is formed with a recess 19 which is somewhat squashed rather than swaying to form a flat- 3 to be matched with the metal tube 5 of the mounting bushing 3 deformed in this way in consideration of the fact that the metal tube 5 inserted in the mounting bushing 3 is largely flattened by this long- By forming the flat groove 19 at the joining portion of the upper pushing block 18, the deformed and damaged mounting bushing 3 and the upper pushing block 18 can be properly matched and joined to facilitate the removal of the mounting bushing . ≪ / RTI >

On the other hand, there is a bushing assembly adapter 20 detachably coupled to the bottom surface of the upper pushing block 18 to engage the new mounting bushing 3 after detaching the deformed mounting bushing 3 Respectively. The adapter 20 for bushing assembly has an enlarged diameter larger than that of the upper end portion of the upper bushing block 18. This is because the pressing surface of the adapter 20 is inserted into the bushing housing 4 in order for the adapter 20 to press the mounting bushing 3 effectively uniformly and push it into the bushing housing 4 of the lower arm 1. [ The upper pushing block 18 can be uniformly pressed down to the outer diameter of the mounting bushing 3 only when the diameter of the upper pushing block 18 is larger than the diameter of the tip of the upper pushing block 18.

1 is a block diagram of a conventional lower arm for a vehicle
2 is a block diagram of a conventional replacement apparatus for a mounting bushing of a vehicle lower arm.
3 is a perspective view of an embodiment of the present invention.
Fig. 4 is a view showing a seating state in which the lower arm is installed in the replacement apparatus for separating the mounting bushing
Fig. 5 is a side sectional view of the seating state view of Fig.
6 is a side cross-sectional view of a state in which the mounting bushing is pressed to separate the mounting bushing
Fig. 7 is a diagram showing the configuration of the upper pushing block and the adapter for bushing assembly of the embodiment
Fig. 8 is a view showing a state of engagement of the adapter for bushing assembly in the above-

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. The present invention has been proposed mainly for replacement of a lower arm of an automobile, but can also be used for replacing an upper arm. The following embodiments will focus on the lower arm of a vehicle. Fig. 3 is a perspective view of an embodiment of the present invention, Figs. 4 and 5 are a state view on the lower arm replacement apparatus for separating the mounting bushing of the embodiment, and Fig. 6 is a pressurized state view of the mounting bushing. As shown in the drawings, the present invention includes a support table 10 on which a table is formed on an upper surface, and a hydraulic cylinder 12 installed upright on the support table 10. The hydraulic cylinder 12 is arranged so that the piston rod 13 extends upward. A support frame 14 having a relatively small rectangular shape is mounted on the upper portion of the hydraulic cylinder 12. [ The support frame 14 is formed in a substantially diagonal shape so as to allow the piston rod 13 at the upper end of the hydraulic cylinder 12 to pass therethrough and is mounted in the upper end portion of the main body of the hydraulic cylinder 12 in the illustrated embodiment, (10).

The upper end of the hydraulic cylinder 12 is provided with a seating support portion 15 having a through hole 5 to allow the piston rod 13 of the hydraulic cylinder 12 to pass therethrough. The bushing housing 4 of the lower arm 1 is directly or via the adapter when the mounting bushing is assembled.

The bushing housing 4 of the lower arm 1 is seated on the cylindrical jig 16 detachably mounted on the seat support 15 at the time of detachment of the mounting bushing and is separated through a hollow portion of the cylindrical jig 16 So that the mounting bushing 3 can be passed through. On the other hand, an upper pushing block 18 extending downward from the upper part of the support frame 14 is provided directly above the seating support 15 or the cylindrical jig 16. The upper pushing block 18 is formed so that at least its distal end outer diameter is smaller than the inner diameter of the bushing housing 4 of the lower arm 1 to which the mounting bushing 3 is fitted so that the mounting bushing 3 is inserted into the bushing housing 4 ) To push it out. Thus, the mounting bushing 3, which is pressed downward by the upper pushing block 18 and exits from the bushing housing 18, is pulled out through the inner diameter portion of the cylindrical jig 16.

In the meantime, since the support frame 14 of the present invention is provided with only the upper pushing block without the hydraulic cylinder at the upper end thereof, the size of the support frame 14 can be made compact and compact. Even if the bushing housing 4 of the lower arm 1 is inserted onto the cylindrical jig 16 for separating the mounting bushing 3 from the upper end of the lower arm 1, The height is made low. Accordingly, even if the lower arm 1 is inserted into the mounting bushing replacement apparatus according to the present invention, the extension arm portion of the lower arm 1 interferes with the support frame 14 and can not be positioned on the cylindrical jig 16 It is possible to effectively separate and remove the mounting bushing. Figs. 4 to 6 show that the lower arm 1 is thus seated in place without interfering with the bushing replacement device of the present invention, and performs a pressurizing operation for separating the bushing.

According to the present invention, as shown in FIG. 7, a flat circular shape, that is, a somewhat distorted circular groove 19 is formed on the bottom surface of the upper pushing block 18. The reason for forming the flat groove 19 in the bottom surface of the upper pushing block 18 rather than in the end is that if the lower arm 1 is used for a long period of time, an uneven eccentric load acts on the mounting bushing 3 The metal bushing 5 inserted into the elastic rubber mounting bushing 3 is deformed most flatly and deformed more sharply than the circular cross section before the deformation, So that the bottom engaging portions of the metal tubular body 5 and the upper pushing block 18 can be fitted and fitted appropriately. If a flat circular groove 19 is formed on the bottom surface of the upper pushing block 18 so that the upper pushing block 18 can not be fitted to enclose the crushed metal tubular body 5 of the mounting bushing 3 So that it is difficult to precisely separate the mounting bushing.

7, the present invention further includes an adapter 20 for bushing assembly that is detachably coupled to the bottom surface of the upper pushing block 18. As shown in FIG. The adapter 20 has a bolt shaft 24 protruding from its upper end and is screwed to a female threaded portion 25 formed at the center of the bottom recess 19 of the upper pushing block 18. The adapter 20 for bushing assembly is made to have an enlarged diameter than the tip of the upper pushing block 18. [ This is because the upper pushing block 18 is operated to push the mounting bushing 3 while being inserted into the inner diameter portion of the bushing housing 4 of the lower arm 1 while the adapter 20 for bushing assembling operates the mounting bushing 3 Is preferably a relatively large pressing area so as to press uniformly against the rigid casing surrounding the outer diameter of the mounting bushing 3 so as to press the entirety uniformly under pressure and push it into the bushing housing 4. [ The bushing assembly adapter 20 has a groove 22 formed in a bottom surface thereof in consideration of the fact that the central portion of the mounting bushing 3 protrudes higher than the peripheral portion. The bushing housing 4 of the lower arm 1 presses the hard case appropriately so that the pressing surface of the adapter 20 surrounds the outer diameter portion of the elastic rubber mounting bushing 3 while receiving it in the groove 22 to avoid interference, To push it inward.

Claims (3)

The cylindrical bushing housing 4 at the center of the bend extending body separates and engages the mounting bushing 3 from the lower arm 1 into which the mounting bushing 3 with the metal tube 5 inserted therein is press- A control arm mounting bushing replacing apparatus for a vehicle, comprising: a support base (10); a hydraulic cylinder (12) installed upright to extend the piston rod (13) upwardly to the support base (10) A support frame 14 mounted on the cylinder 12 and formed to surround the movement path of the piston rod 13 and a seat support 15 provided on the upper end of the hydraulic cylinder 12 to allow the piston rod 13 to pass therethrough, A cylindrical jig 16 detachably attached to the seat support 15 and having a hollow interior with a bushing housing 4 of the lower arm 1 mounted thereon, Extends downward from the top of the support frame 14 and abuts against the mounting bushing 3 And an upper pushing block 18 for pushing and pushing the mounting bushing 3 into the interior of the cylindrical jig 16. When the bushing housing 4 of the lower arm 1 is seated in the cylindrical jig 16, Wherein the upper end of the support frame (14) is lower than the upper end of the lower arm (1).
2. The apparatus according to claim 1, wherein a flat circular groove (19) is formed on the bottom surface of the upper pushing block (18) and is fitted to the outside of the flatly deformed metal tube (5) of the mounting bushing A control arm mounting bushing replacement device for an automobile.
The bushing assembly adapter according to claim 1 or 2, further comprising a bushing assembly adapter (20) detachably coupled to a bottom surface of the upper pushing block (18) and having a larger diameter than a tip end of the upper pushing block Wherein the control arm mounting bushing is mounted on the vehicle body.
KR20130096283A 2013-08-14 2013-08-14 Exchange apparatus of the mounting bushing of lower arm of vehicle KR20150019424A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20130096283A KR20150019424A (en) 2013-08-14 2013-08-14 Exchange apparatus of the mounting bushing of lower arm of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR20130096283A KR20150019424A (en) 2013-08-14 2013-08-14 Exchange apparatus of the mounting bushing of lower arm of vehicle

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101588216B1 (en) * 2015-10-14 2016-01-25 (주)수산인더스트리 Spacer assembly for puller
CN107443047A (en) * 2017-08-27 2017-12-08 浙江工业大学 A kind of automobile control arm front lining press-fitting tool
WO2018199343A1 (en) * 2017-04-24 2018-11-01 주식회사 에스엠모터스 Tool for bushing replacement work
CN109664092A (en) * 2019-01-25 2019-04-23 寇俊祥 A kind of automobile hanging pull rod bushing assembly equipment
CN114406652A (en) * 2021-12-27 2022-04-29 佛山市顺德区赛恩特实业有限公司 Assembling device for base cover of automobile silencer and using method of assembling device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101588216B1 (en) * 2015-10-14 2016-01-25 (주)수산인더스트리 Spacer assembly for puller
WO2018199343A1 (en) * 2017-04-24 2018-11-01 주식회사 에스엠모터스 Tool for bushing replacement work
CN107443047A (en) * 2017-08-27 2017-12-08 浙江工业大学 A kind of automobile control arm front lining press-fitting tool
CN109664092A (en) * 2019-01-25 2019-04-23 寇俊祥 A kind of automobile hanging pull rod bushing assembly equipment
CN114406652A (en) * 2021-12-27 2022-04-29 佛山市顺德区赛恩特实业有限公司 Assembling device for base cover of automobile silencer and using method of assembling device
CN114406652B (en) * 2021-12-27 2024-03-12 佛山市顺德区赛恩特实业有限公司 Automobile muffler base cover assembly device and application method thereof

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