KR101618513B1 - Apparatus for assembling ball joint - Google Patents

Apparatus for assembling ball joint Download PDF

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Publication number
KR101618513B1
KR101618513B1 KR1020150065105A KR20150065105A KR101618513B1 KR 101618513 B1 KR101618513 B1 KR 101618513B1 KR 1020150065105 A KR1020150065105 A KR 1020150065105A KR 20150065105 A KR20150065105 A KR 20150065105A KR 101618513 B1 KR101618513 B1 KR 101618513B1
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KR
South Korea
Prior art keywords
jig
pusher
ball joint
ball
plug
Prior art date
Application number
KR1020150065105A
Other languages
Korean (ko)
Inventor
김용관
노경구
Original Assignee
주식회사 티앤지
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Publication date
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Priority to KR1020150065105A priority Critical patent/KR101618513B1/en
Application granted granted Critical
Publication of KR101618513B1 publication Critical patent/KR101618513B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02—Assembly jigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
    • B62D65/12—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components the sub-units or components being suspensions, brakes or wheel units

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

The present invention relates to an apparatus for assembling a ball joint. The apparatus for assembling a ball joint according to the present invention comprises: an upper jig assembly (100) disposed in an upper part with respect to a ball joint (300); and a lower jig (200) disposed in a lower part of the ball joint (300), wherein the upper jig assembly (100) includes a caulking jig (110), a preload pusher (120) disposed to slide in an upper and lower direction while being received inside the caulking jig (110), an elastic body (130) fixed in the upper end of the preload pusher (120), and a tension adjustment unit (140) coupled to the upper end of the elastic body (130). While a plug (340) is placed on the upper end of a socket (320) and a ball seat (330) constituting the ball joint (300), the preload pusher (120) is lowered to primarily pressurize the inner side of the plug (340). Then, the caulking jig (110) is lowered to secondarily pressurize the outer side of the plug (340).

Description

[0001] Apparatus for assembling ball joint [0002]

The present invention relates to the design of an apparatus for assembling ball joint assemblies. More specifically, the ball stud is mounted on the ball seat so as to be freely movable after the ball seat is seated on the inner surface of the socket for receiving the ball stud. In the process of fixing the ball stud on the socket, And a plug for caulking the socket is assembled using a jig.

Generally, ball joints are used for suspension and steering systems of automobiles. The ball joint is a part in which a ball stud having a spherical portion is rotatably coupled to a socket in which the seat is contained. When the ball stud is detached from the socket, the ball stud causes a serious safety problem of the vehicle. It should be firmly fixed.

In order to prevent the ball stud from being detached from the socket, a method of inserting a plug into one side of the ball seat embedded in the socket and caulking the bottom portion of the socket protruding around the lower side of the socket to the bottom surface of the plug .

By the caulking, the plug is stuck more firmly on the bottom surface of the ball seat, which acts as a resistance in the turning operation of the ball stud. That is, caulking should be performed with a stronger pressure in order to prevent the ball stud from escaping. However, when the degree of caulking is too great, the ball stud may not be pivoted and the rotation angle may be restricted and noise may be generated. .

In the conventional method of manufacturing the ball joint, the caulking proceeds in a state in which the caulking load and the caulking distance are set. However, even when caulking is performed to the same extent due to tolerance of each component constituting the ball joint, May be different from each other, so that the deviation of the torque of each ball joint produced becomes large.

As a conventional literature for suggesting a ball joint assembly system, reference may be made to Korean Patent No. 10-0951776 (Mar. 31, 2010) and Japanese Patent Application Laid-Open No. 10-2011-0084806 (July 26, 2011). Although the above-described invention discloses a ball joint assembly system or a caulking device for manufacturing ball joints, the present invention can be applied to a method for stably maintaining the plug at a mounting point without swinging in a process of installing a plug provided between the ball seat and the socket, There is a limitation that it is not separately disclosed.

(Patent Document 1) KR10-0951776 B

(Patent Document 2) KR10-2011-0084806 A

SUMMARY OF THE INVENTION The present invention has been made in an effort to solve the problems of the prior art described above, and it is an object of the present invention to provide a method of mounting a plug, which is installed between a ball seat and a socket, The present invention has been made in view of the above problems.

In the ball joint assembly apparatus according to the present invention, the ball stud 310, the socket 320 for receiving the ball stud 310 therein, the ball stud 310 The ball joint 300 is used as an apparatus for caulking a plug 340 on a ball joint 300 having a ball seat 330 disposed between the ball joint 300 and the socket 320, And a lower jig 200 disposed at a lower portion of the ball joint 300. The upper jig assembly 100 includes a hollow caulking jig 100, A preloaded pusher 120 slidably disposed along the upper and lower direction while being accommodated in the caulking jig 110, an elastic body 130 fixed to an upper end of the preloaded pusher 120, A tension adjusting unit 140 coupled to an upper end of the tension adjusting unit 140 And the preload pusher 120 is lowered to primarily press the inside of the plug 340 while the plug 340 is placed on the top of the ball seat 330 and the socket 320 The caulking jig 110 is lowered and the outer side of the plug 340 is secondarily pressed.

The caulking jig 110 includes a jig main body 111, a jig pressing part 113 extending stepwise inward at a lower end of the jig main body 111, And the jig pressing part 113 is formed such that a lower edge of the jig pressing part 113 is inclined upward.

The preloaded pusher 120 includes a hollow pusher body 121, a pusher head 122 that is steppedly coupled to the upper end of the pusher body 121, And includes pusher hollow portions 123 and 124 formed to be penetratingly formed.

The preloaded pusher 120 has a structure in which the lower end of the pusher head 122 is hooked on the engagement protrusion 112 formed inside the jig body 111 so as to be stepped inward.

In the ball joint assembly apparatus of the present invention as described above, when the plug is installed on a mounting point using a jig in a process of installing a plug that is installed between a ball seat and a socket and performs a calking action, .

That is, according to the present invention, in a process of pressing a plug using a pre-pressurizing pusher coupled to the inside of the upper caulking jig by a tension adjusting unit and a coil spring or the like so as to be vertically slidable, The outer side of the plug is deformed through plastic working through the upper caulking jig excluding the pre-pressurizer, so that caulking between the ball seat and the socket can be stably performed.

The present invention eliminates the problem that the inside of the plug is lifted when the plug is caulked so that the ball seat can not be properly fixed on the socket.

1 is a perspective view of a ball joint assembling apparatus according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the ball joint assembling apparatus of FIG. 1,
Figs. 3 to 4 are views showing a state where a plug on a ball joint is fixed on a socket using the ball joint assembling apparatus of the present invention, and Fig.
5 is a view showing a ball seat and a ball joint in a fixed state using a plug at the socket top.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of other various forms of implementation, and that these embodiments are provided so that this disclosure will be thorough and complete, It is provided to let you know completely. Wherein like reference numerals refer to like elements throughout.

It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

The present invention provides an apparatus for stably holding a plug in a ball joint rotatably receiving a ball stud and includes a pair of jig assemblies disposed on the upper and lower sides with reference to the ball joint, An additional jig can be added for assembly of the joint.

FIG. 1 is a perspective view of a ball joint assembling apparatus according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the ball joint assembling apparatus of FIG. 1, And FIG. 5 is a view showing a ball joint and a ball joint in a state where they are fixed by using a plug at the top of the socket. FIG.

1 to 3, the ball joint assembly apparatus according to the present invention includes an upper jig assembly 100 disposed at an upper portion with respect to a ball joint 300, and a lower jig assembly 100 disposed at a lower portion of the ball joint 300 And includes a lower jig 200.

The ball joint 300 includes a ball stud 310 having a spherical ball portion disposed at the center and a cylindrical stud extending to both sides with respect to the ball portion, a socket 320 for accommodating the ball stud 310 therein, A ball seat 330 disposed between the ball stud 310 and the socket 320, a plug 340 coupled to the top of the ball seat 330 and the socket 320, a stud 340 of the ball stud 310, A dust cover 350 that connects the edges of the dust cover 320 to prevent dust from entering and leaving the outside, and a sealing 360 that is fastened to surround the upper outer surface of the dust cover 350.

The ball seat 330 surrounds the ball portion of the ball stud 210 and functions as a bearing that interacts with the ball portion.

The socket 320 provides a space in which the ball seat 330 is seated. The ball seat 330 is stably fixed to the inside of the socket 320. A cover engaging portion to which the dust cover 350 is coupled may be provided on the outer peripheral upper end portion of the socket 320. [

The dust cover 350 is made of a flexible material such as rubber and has a stud engagement end that surrounds the stud portion of the ball stud 310 and a socket engagement end that is coupled to surround the socket 320. The press-fit iron core can be inserted into the socket joint end, and the iron core provides a fixing force with the socket 320 to the dust cover 350 by elastic deformation.

The upper jig assembly 100 has a cylindrical shape and includes a caulking jig 110 having a hollow portion 114 therein, a preloaded pusher 120 slidably disposed along the upper and lower direction in a state of being housed inside the caulking jig 110, An elastic body 130 fixed to the upper end of the preloaded pusher 120 and a tension adjusting unit 140 coupled to an upper end of the elastic body 130.

The caulking jig 110 constitutes the outer body of the upper jig assembly 100 and has a stepped shape in multiple steps along the vertical direction. More specifically, a jig main body 111, a jig pressing portion 113 extending stepwise inward at the lower end of the jig main body 111, and a jig head portion 115 extending stepwise outwardly from the upper end of the jig main body 111 ).

The preloaded pusher 120 includes a pusher body 121, a pusher head 122 that is steppedly coupled to the upper end of the pusher body 121, a first pusher hollow 123 formed in the pusher body 121, And a second pusher hollow portion 124 that allows the pusher hollow portion 123 to communicate with the upper end of the pusher head portion 122. The pusher hollows 123 and 124 function as a fluid path for fluid flowing over the hollow portion 114 and the inner and outer lengths of the pusher body 121 can be adjusted by adjusting the diameter of the first pusher hollow portion 123 .

The preloaded pusher 120 has a structure in which the lower edge of the pusher head portion 122 is hooked on the engagement protrusion 112 formed inside the jig main body 111 so as to be stepped inward, You can set a limit.

The elastic body 130 functions to provide a downward pressing force in the process of applying pressure on the plug 340 by the pre- The elastic body 130 may have the shape of a coil spring, for example, and is set to have a tension of 300 kgf or more.

The tension adjusting unit 140 functions to adjust the tension of the elastic body 130 and enables the tension adjusting unit 140 to move up and down along the hollow portion 114 of the caulking jig 110.

The lower jig 200 includes a jig plate 210 having a stud receiving groove formed at the center thereof and a mounting protrusion 220 protruding from the upper surface of the jig plate 210. In the process of assembling the ball joint 300, the lower stud, which is the ball stud 310, is inserted into the stud receiving groove, and the mounting protrusion 220 functions to support the lower end of the socket 320.

Hereinafter, the process of fixing the plug on the ball joint on the socket using the ball joint assembling apparatus will be described with reference to FIGS. 3 to 4. FIG.

First, a ball joint 300 with a ball seat 330 and a ball stud 310 mounted on a socket 320 is disposed on the lower jig 200. That is, the ball joint 300 is disposed on the upper portion of the lower jig 200 by using the stud receiving groove formed in the jig plate 210 and the mounting protrusion 220, thereby preparing the assembly of the plug 340.

A plug 340 is inserted through the space between the socket 320 and the ball stud 310 and disposed at the top of the ball seat 330 and the socket 320.

Next, the upper jig assembly 100 is lowered as a whole, and the lowering of the upper jig assembly 100 is stopped at a position spaced apart from the upper end of the plug 340 by a predetermined distance.

The preload pusher 120 descends through the elastic body 130 and the tension adjusting unit 140 so that the lower edge of the pusher head 122 descends until it reaches the stepped portion inside the caulking jig 110 . The preloaded pusher 120 prevents the plug 340 from being lifted inward by first pressing the inner side of the ring-shaped plug 340 first through the lower end of the pusher body 121.

The inner jig 110 is moved downward by a separate actuator module so that the jig pressing portion 113 is positioned at the inner edge of the inner point when the inner point of the plug 340 is pressed by the pre- The plug 340 is plastically deformed and caulked as a result.

Here, the jig pressing portion 113 maintains a state in which the lower end edge of the jig pressing portion 113 is inclined upward, thereby pressing the plug 340 in the downward direction during the secondary pressing through the caulking jig 110, Thereby enabling plastic deformation processing of the step (see also the enlarged view of FIG. 4). Meanwhile, a constant groove is formed in the inside of the socket 320 so that the plug 340 can be easily deformed in the pressing process.

The dust cover 350 is fastened to the top of the ball stud 310 and the socket 320 so as to be coupled to the inside of the socket 320 after the process of coupling the plug 340 using the ball joint assembling apparatus of the present invention is completed. Dust can be prevented from entering the ball stud 310, and the seal can be further strengthened by surrounding the upper outer surface of the dust cover 350 through the sealing ring 360.

In the ball joint assembly apparatus of the present invention as described above, when the plug is installed on a mounting point using a jig in a process of installing a plug that is installed between a ball seat and a socket and performs a calking action, .

It is to be understood that the terms "comprises", "comprising", or "having" as used in the foregoing description mean that the constituent element can be implanted unless specifically stated to the contrary, But should be construed as further including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as falling within the scope of the present invention.

100: upper jig assembly
110: caulking jig
120: preloaded pusher
130: elastomer
140: tension adjusting unit
200: lower jig
300: ball joint

Claims (4)

A ball stud 310, a socket 320 for receiving the ball stud 310 therein, and a ball seat 330 disposed between the ball stud 310 and the socket 320 ) For clamping the plug (340)
The ball joint assembling apparatus includes:
An upper jig assembly 100 disposed at an upper portion with respect to the ball joint 300 and a lower jig 200 disposed at a lower portion of the ball joint 300,
The upper jig assembly (100)
A preloaded pusher 120 slidably disposed along the upper and lower directions in a state of being housed in the caulking jig 110, an elastic body 130 fixed to an upper end of the pre- And a tension adjusting unit 140 coupled to an upper end of the elastic body 130,
The preload presser 120 is first lowered to press the inside of the plug 340 while the plug 340 is placed on the top of the ball seat 330 and the socket 320, And a structure in which the jig 110 is lowered to secondarily press the outside of the plug 340,
Ball joint assembly device.
The method according to claim 1,
The caulking jig (110)
A jig pressing part 113 that extends stepwise inward at the lower end of the jig main body 111 and a jig head part 115 which is stepped outwardly at the upper end of the jig main body 111 ≪ / RTI &
The jig pressing part 113 has a lower end edge inclined upward,
Ball joint assembly device.
3. The method of claim 2,
The preloaded pusher 120 includes a hollow pusher body 121, a pusher head 122 that is steppedly coupled to the upper end of the pusher body 121, (123, 124) that are formed through the pusher
Ball joint assembly device.
The method of claim 3,
The preloaded pusher 120 has a structure in which a lower edge of the pusher head 122 is hooked on a latching protrusion 112 formed inside the jig body 111 so as to be stepped inward.
Ball joint assembly device.
KR1020150065105A 2015-05-11 2015-05-11 Apparatus for assembling ball joint KR101618513B1 (en)

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Application Number Priority Date Filing Date Title
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190000580U (en) * 2017-09-06 2019-03-06 주식회사 센트랄 Flexible type boot pressing fixture
CN110788619A (en) * 2019-11-14 2020-02-14 浙江贝尔佳电子有限公司 Full-automatic assembly machine for safety socket
CN111360750A (en) * 2020-03-10 2020-07-03 天津大学 System for flexibly assembling plum coupling
CN112355949A (en) * 2020-10-30 2021-02-12 广西玉柴机器股份有限公司 Sleeve rack convenient to adjust
CN113815019A (en) * 2021-10-15 2021-12-21 江苏汇博机器人技术股份有限公司 Robot connecting base convenient for angle adjustment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100896709B1 (en) 2007-12-03 2009-05-11 주식회사 센트랄 Ball joint comprising a ball joint socket manufactured integrally in a knuckle
KR101242932B1 (en) 2010-12-21 2013-03-12 주식회사 센트랄 Manufacturing method for cross axis ball joint
JP2013167314A (en) 2012-02-16 2013-08-29 Nhk Spring Co Ltd Stabilizer link and manufacturing method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100896709B1 (en) 2007-12-03 2009-05-11 주식회사 센트랄 Ball joint comprising a ball joint socket manufactured integrally in a knuckle
KR101242932B1 (en) 2010-12-21 2013-03-12 주식회사 센트랄 Manufacturing method for cross axis ball joint
JP2013167314A (en) 2012-02-16 2013-08-29 Nhk Spring Co Ltd Stabilizer link and manufacturing method therefor

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190000580U (en) * 2017-09-06 2019-03-06 주식회사 센트랄 Flexible type boot pressing fixture
KR200489543Y1 (en) * 2017-09-06 2019-07-03 주식회사 센트랄 Flexible type boot pressing fixture
CN110788619A (en) * 2019-11-14 2020-02-14 浙江贝尔佳电子有限公司 Full-automatic assembly machine for safety socket
CN111360750A (en) * 2020-03-10 2020-07-03 天津大学 System for flexibly assembling plum coupling
CN111360750B (en) * 2020-03-10 2023-12-26 天津大学 System for flexibly assembling plum blossom shaft coupling
CN112355949A (en) * 2020-10-30 2021-02-12 广西玉柴机器股份有限公司 Sleeve rack convenient to adjust
CN112355949B (en) * 2020-10-30 2024-05-28 广西玉柴机器股份有限公司 Sleeve rack convenient to adjust
CN113815019A (en) * 2021-10-15 2021-12-21 江苏汇博机器人技术股份有限公司 Robot connecting base convenient for angle adjustment

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