WO2023113054A1 - Ball stud and manufacturing method therefor - Google Patents

Ball stud and manufacturing method therefor Download PDF

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Publication number
WO2023113054A1
WO2023113054A1 PCT/KR2021/018896 KR2021018896W WO2023113054A1 WO 2023113054 A1 WO2023113054 A1 WO 2023113054A1 KR 2021018896 W KR2021018896 W KR 2021018896W WO 2023113054 A1 WO2023113054 A1 WO 2023113054A1
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WO
WIPO (PCT)
Prior art keywords
ball
flange
rod member
welding
ball member
Prior art date
Application number
PCT/KR2021/018896
Other languages
French (fr)
Korean (ko)
Inventor
이선호
이종석
박상오
Original Assignee
주식회사 일진
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 주식회사 일진 filed Critical 주식회사 일진
Priority to PCT/KR2021/018896 priority Critical patent/WO2023113054A1/en
Publication of WO2023113054A1 publication Critical patent/WO2023113054A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/10—Spot welding; Stitch welding
    • B23K11/11—Spot welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints

Definitions

  • the present invention relates to a ball stud and a manufacturing method thereof, and more particularly, to a ball stud configured to form a ball member and a rod member separately and then welding them to form a ball stud and a manufacturing method thereof.
  • a structure of a ball joint 10 that can be used for a stabilizer link or the like is shown as an example.
  • the ball joint 10 is configured to insert and combine the ball member 22 provided at one end of the ball stud 20 into the accommodation space provided inside the housing 30, A bearing seat 40 or the like is interposed between the ball member 22 and the housing 30 of (20) to assist the smooth rotational movement of the ball member 22.
  • the ball stud 20 used in such a ball joint 10 includes a ball member 22 including a spherical portion; It consists of a rod member 24 extending in one direction from the ball member, and the ball member 22 and the rod member 24 are generally formed as a single integral structure.
  • a conventionally used ball stud 20 manufacturing process is shown as an example.
  • the ball stud 20 cuts a cylindrical rod-shaped metal material to size (see FIG. 2 (a)); After preforming [see Fig. 2 (b)]; Molding one side of the roll of the rod member [see Fig. 2 (c)]; After preforming the spherical part on the ball member part [see Fig. 2 (d)]; Detailed molding of the spherical portion of the ball member [see (e) in FIG. 2]; After molding the shape of the neck between the ball member and the rod member (see Fig. 2 (f)); It is formed through the process of finishing molding [see FIG. 2 (g)] into the final shape.
  • the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a ball stud and a method of manufacturing the same that can be manufactured more quickly and easily by separately forming a ball member and a rod member and then welding them.
  • a ball stud that can be used by being mounted on a stabilizer link or the like may be provided.
  • a ball stud according to an embodiment of the present invention includes a ball member including a spherical portion; It includes a rod member extending in one direction from the ball member, and the ball member and the rod member may be formed as separate members and then coupled through welding.
  • the rod member includes a first flange and a second flange formed by protruding outward in the radial direction, and the first flange disposed adjacent to the ball member among the first flange and the second flange is a ball. It may be configured to be formed by heating and forming in the process of welding the member and the rod member.
  • the connecting portion of the rod member positioned between the first flange and the ball member may be configured to be heat-formed into a final shape in the process of welding the ball member and the rod member.
  • a mounting groove in which a dust cover is mounted may be provided between the first flange and the second flange.
  • the rod member before being welded to the ball member, includes a second flange extending outwardly in the radial direction; a mounting groove extending from the second flange toward the ball member; It may be formed to include a heat-molded portion extending from the mounting groove toward the ball member.
  • the heat-molded portion may be formed in a structure in which the diameter decreases as it moves toward the ball member.
  • the ball member and the rod member may be configured to be welded while applying voltages of different electrodes to the ball member and the rod member in a state of being mounted on a processing jig and pressing them toward each other.
  • the first flange and the connecting portion of the rod member may be configured to be heat-formed while the material flows into the space formed in the processing jig by welding heat generated during welding.
  • a method of manufacturing a ball stud that can be used by being mounted on a stabilizer link or the like can be provided.
  • a ball stud manufacturing method includes preparing a ball member and a rod member; Mounting the ball member and the rod member to a processing jig; welding the ball member and the rod member; A step of separating the ball stud formed by welding the ball member and the rod member from the processing jig may be included.
  • the rod member in the step of preparing the ball member and the rod member, the rod member is formed with a second flange protruding outward in the radial direction, and in the step of welding the ball member and the rod member, welding is performed.
  • a first flange protruding outward in the radial direction is formed by heat-forming the rod member by welding heat generated during welding, and the first flange may be configured to be positioned closer to the ball member than the second flange.
  • connection between the ball member and the rod member may be heat-formed into a final shape by welding heat generated during welding.
  • the rod member and the second flange protruding outward in the radial direction; a mounting groove extending from the second flange toward the ball member; It may be formed to include a heat-molded portion extending from the mounting groove toward the ball member.
  • the heat-molded portion may be formed in a structure in which the diameter decreases as it moves toward the ball member.
  • the ball member in the step of mounting the ball member and the rod member to the processing jig, the ball member is inserted into and mounted in the first jig, the rod member is inserted into and mounted in the second jig, and the first jig And at least one of the second jigs is provided with a first flange forming part of the ball stud, so that when the ball member and the rod member are welded and coupled, the material is introduced into the first flange forming part by welding heat so that the first flange is heat-formed It can be.
  • At least one of the first jig and the second jig is provided with a connection part forming part of a ball stud, and when the ball member and the rod member are welded and coupled, the material is introduced into the space of the connection part by welding heat.
  • the connection between the ball member and the rod member may be configured to be heat-formed into a final shape.
  • the ball stud and its manufacturing method according to the present invention may further include other additional components within a range that does not impair the technical spirit of the present invention.
  • the ball stud according to an embodiment of the present invention is configured to be formed by separately forming a ball member and a rod member and then welding them, the spherical part of the ball member, for which the shape of a perfect circle and roughness are important, can be easily formed into a more accurate shape. be able to form
  • the ball stud according to an embodiment of the present invention is configured such that one side flange of the dust cover mounting portion is formed on the rod member in the process of welding and coupling the ball member and the rod member, so that the rod member can be easily formed in a simpler structure. It is possible to do this, and as a result, the manufacturing process of the rod member and the ball stud can be more simplified, productivity can be improved, and problems such as deformation of the flange portion can be suppressed during the welding process.
  • FIG. 1 shows the structure of a ball joint that can be used for a stabilizer link or the like by way of example.
  • FIG. 3 exemplarily shows the structure of a ball stud according to an embodiment of the present invention.
  • FIG. 4 exemplarily shows a shape before welding of a rod member constituting a ball stud according to an embodiment of the present invention.
  • FIG. 5 and 6 illustratively shows a state in which a ball member and a rod member are welded and coupled using a processing jig according to an embodiment of the present invention.
  • Fig. 5 shows a state before welding
  • Fig. 6 shows a state after welding
  • FIG. 7 exemplarily illustrates a manufacturing process of a ball stud according to an embodiment of the present invention.
  • the ball stud 100 according to an embodiment of the present invention may be configured to be used by being mounted on a ball joint of, for example, a stabilizer link of a vehicle.
  • the ball stud 100 may include a ball member 200 and a rod member 300, and as will be described later, the ball member 200 and the rod member 300 are formed separately. And then characterized in that it is configured to be formed by welding them.
  • the ball member 200 may be formed to have a spherical portion on an outer circumferential surface, and as in a conventional ball stud, such a spherical portion may be inserted into the housing and relatively rotated.
  • the rod member 300 may be formed in a substantially bar-shaped structure extending in one direction from the ball member 200.
  • a mounting portion to which one end of the dust cover is coupled may be provided on one side of the rod member 300 .
  • the rod member 300 is provided with a first flange 310 and a second flange 320 protruding outward in the radial direction, and a mounting groove 330 to which one end of the dust cover is coupled by these flanges It can be configured to form.
  • the rod member 300 may have a connection portion 340 connected to the ball member 200 between the first flange 310 and the ball member 200, and the ball member ( 200), the connecting portion 340 may be formed to have a substantially conical structure with a smaller diameter as it moves toward the ball member 200.
  • the rod member 300 may include an extension extending from the second flange 320 to the opposite side of the ball member 200, and the extension includes a fastening portion 350 such as a threaded portion. ) and/or a tool coupling part 360 and the like may be provided.
  • the axial cross section of the rod member 300 toward the ball member 200 may be formed as a plane 380 perpendicular to the axial direction as shown in FIG. As shown in the dotted line, it may be formed as a concave surface 380a recessed in the axial direction.
  • the flange (first flange 310) disposed adjacent to the ball member 200 is the ball member 200 and the rod member 300.
  • It may be configured to be formed by heating and forming by welding heat in the process of welding and combining.
  • the rod member 300 is formed in a state in which the first flange 310 is not provided before welding with the ball member 200 as shown in FIG.
  • the connection portion between the ball member 200 and the rod member 300 is heat-formed by welding heat so that the first flange 310 is formed. It can be.
  • the connecting portion 340 of the rod member 300 located between the first flange 310 and the ball member 200 also connects the ball member 200 and the rod member 300.
  • it may be configured to be heat-formed into a final shape by welding heat.
  • the rod member 300 is a second flange 320 as shown in Figure 4 before being welded to the ball member 200; a mounting groove 330 extending from the second flange 320 toward the ball member 200; It is formed to include a heating molding part 370 extending from the mounting groove 330 toward the ball member 200, and the first flange 310 is not provided at one end of the mounting groove 330, and the connecting portion 340 A portion corresponding to may be configured to be formed with a smaller diameter than the final shape.
  • the heat-forming part 370 may be formed in a structure (eg, a conical structure) in which the diameter decreases as it moves toward the ball member 200, and the heat-forming part 370
  • the first flange 310 and the connecting portion 340 may be formed to have a longer axial length than the axial length of the first flange 310 and the connecting portion 340 after welding so that the first flange 310 and the connecting portion 340 can be heat-formed during the welding process.
  • the first flange 310 and the connecting portion 340 are formed by welding heat.
  • a shape formed by heating is schematically shown.
  • the ball stud 100 has different electrode voltages on both sides in a state where the ball member 200 and the rod member 300 are mounted on the processing jig 400. It may be configured to be welded while applying and pressing toward each other.
  • the processing jig 400 used to combine the ball member 200 and the rod member 300 by welding includes the first jig 410 to which the ball member 200 is mounted and the rod member. It may be configured to include a second jig 430 to which 300 is mounted.
  • the first jig 410 and the second jig 430 are composed of a plurality of members capable of sliding in a direction perpendicular to the axial direction of the ball stud, respectively, and the ball member 200 between them. ) and the rod member 300 may be configured to be accommodated and mounted.
  • the first jig 410 may be configured to be equipped with a ball member accommodating portion 420 so that the ball member 200 is inserted into the ball member accommodating portion 420 and mounted.
  • the second jig 430 may be provided with a rod member accommodating portion 440 into which all or part of the rod member 300 can be inserted, and the rod member accommodating portion 440
  • One side may be provided with a second flange accommodating portion 450 into which the second flange 320 of the rod member 300 is inserted and coupled, and one side of the second flange accommodating portion 450 is a mounting groove accommodating portion.
  • 460 may be provided so that the mounting groove 330 of the rod member 300 is located in the mounting groove accommodating portion 460 .
  • the first jig 410 to which the ball member 200 is mounted and the second jig 430 to which the rod member 300 is mounted are spaced apart from each other as shown in FIG. It can be configured to be arranged as.
  • the ball member 200 and the rod member 300 are welded together, local heating by welding heat occurs in a welded portion between the ball member 200 and the rod member 300.
  • a molding effect may occur, and as a result, the first flange 310 is formed on the rod member 300 while the material is filled into the space 470 formed in the first jig 410 and/or the second jig 430.
  • the connection part 340 can be heat-formed into the final shape.
  • the lower portion of the first jig 410 to which the ball member 200 is mounted and the upper portion of the second jig 430 to which the rod member 300 is mounted include a first flange 310
  • the first flange forming part 480 having a shape corresponding to the material flowing into the first flange forming part 480 by welding heat
  • One flange 310 is configured to be heat-formed
  • the first jig 410 to which the ball member 200 is mounted is a connection portion having a shape corresponding to the connection portion 340 on one side of the first flange forming portion 480.
  • a part of the connection part forming part 490 and the first flange forming part 480 is formed in the first jig 410 to which the ball member 200 is mounted, and the rod member 300
  • the processing jig 400 is formed such that the remaining portion of the first flange forming portion 480 is formed on the second jig 430 to be mounted, but the processing jig 400 forms the first flange forming portion 480 and the connection portion.
  • the portion 490 may be properly modified and implemented so as to be disposed on one or more of the first jig 410 and the second jig 430 .
  • the flange (first flange 310) disposed adjacent to the ball member 200 among the flanges forming the dust cover mounting portion supports the rod member 300. Since it is configured to be heat-formed by welding heat generated in the process of welding the ball member 200, when manufacturing the rod member 300, it is necessary to form the first flange 310 on the outer circumferential surface of the rod member 300. There is no, and thus it becomes possible to easily form the rod member 300 with a simpler structure.
  • the ball stud 100 since the ball stud 100 according to an embodiment of the present invention does not have the first flange 310 on the rod member 300 before welding, the ball member 200 and the rod member 300 are not welded together. Since the welding is not performed with the first flange 310 positioned adjacent to the welding portion pre-formed, thermal deformation of the first flange 310 due to welding heat, etc. will be able to prevent
  • FIG. 7 a flow chart of a process for manufacturing the ball stud 100 according to an embodiment of the present invention is exemplarily organized according to the above description.
  • the ball stud 100 prepares a ball member and a rod member (S100); Mounting the ball member and the rod member to the processing jig (S200); Joining the ball member and the rod member by welding (S300); It may be formed through the step of separating (S400) the ball stud formed by welding the ball member and the rod member from the processing jig.
  • the ball member 200 and the rod member 300 may be formed and prepared as separate members, and at this time, the rod member ( 300) may be formed in a state where one side flange of the dust cover mounting portion (the first flange 310 disposed adjacent to the ball member) is not provided as described above.
  • the ball member 200 and the rod member 300 are individually jig [first jig 410 and second jig 410].
  • the jig 430] may be divided and mounted, and the heat forming unit 370 may be disposed to be located within the space 470 provided in the processing jig 400.
  • the ball member 200 and the rod member 300 are loaded with a first jig ( 410) and the second jig 430 on which the rod member 300 is mounted are pressed toward each other while welding is performed.
  • the rod member 300 has a first flange as described above ( 310) is formed and the connection part 340 is heat-molded into the final shape.
  • the welded ball stud 100 is separated from the processing jig, and the separated ball stud 100 A finishing process is performed as needed to enable completion.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

According to one embodiment of the present invention, provided is a ball stud which can be mounted on and used for a stabilizer link and the like. The ball stud according to one embodiment of the present invention comprises: a ball member including a ball-shaped part; and a rod member extending toward one side thereof from the ball member, wherein the ball member and the rod member are formed as separate members and then can be coupled through welding. According to one embodiment of the present invention, the rod member includes a first flange and a second flange, which protrude toward the radial outer side thereof, wherein the first flange, that is adjacently disposed to the ball member, from among the first flange and the second flange can be heated and molded during welding of the ball member and the rod member.

Description

볼스터드 및 이의 제조방법Ball stud and its manufacturing method
본 발명은 볼스터드 및 이의 제조방법에 관한 것으로, 보다 상세하게는 볼부재와 로드부재를 별도로 형성한 다음 이를 용접하여 형성하도록 구성된 볼스터드 및 이의 제조방법에 관한 것이다.The present invention relates to a ball stud and a manufacturing method thereof, and more particularly, to a ball stud configured to form a ball member and a rod member separately and then welding them to form a ball stud and a manufacturing method thereof.
도 1을 참조하면, 스테빌라이저 링크 등에 이용될 수 있는 볼조인트(10)의 구조가 예시적으로 도시되어 있다. 도 1에 도시된 바와 같이, 볼조인트(10)는 볼스터드(20)의 일단에 구비된 볼부재(22)를 하우징(30) 내부에 구비된 수용공간에 삽입하여 결합하도록 구성되며, 볼스터드(20)의 볼부재(22)와 하우징(30) 사이에는 베어링 시트(40) 등이 개재되어 볼부재(22)의 원활한 회전 운동을 보조하도록 구성된다.Referring to FIG. 1, a structure of a ball joint 10 that can be used for a stabilizer link or the like is shown as an example. As shown in FIG. 1, the ball joint 10 is configured to insert and combine the ball member 22 provided at one end of the ball stud 20 into the accommodation space provided inside the housing 30, A bearing seat 40 or the like is interposed between the ball member 22 and the housing 30 of (20) to assist the smooth rotational movement of the ball member 22.
한편, 이러한 볼조인트(10)에 이용되는 볼스터드(20)는 구 형상부를 포함하는 볼부재(22)와; 볼부재로부터 일측 방향으로 연장하는 로드부재(24)로 이루어지며, 볼부재(22)와 로드부재(24)는 일반적으로 단일의 일체형 구조로 형성되게 된다.On the other hand, the ball stud 20 used in such a ball joint 10 includes a ball member 22 including a spherical portion; It consists of a rod member 24 extending in one direction from the ball member, and the ball member 22 and the rod member 24 are generally formed as a single integral structure.
도 2를 참조하면, 종래에 이용되고 있는 볼스터드(20)의 제조과정이 예시적으로 도시되어 있다. 도 2에 도시된 바와 같이, 볼스터드(20)는 원통형 막대 형상의 금속 소재를 크기에 맞추어 절단하고[도 2의 (a) 참조]; 예비성형한 다음[도 2의 (b) 참조]; 로드부재의 일측 전조부를 성형하고[도 2의 (c) 참조]; 볼부재 부분에 구 형상부를 예비 성형한 다음[도 2의 (d) 참조]; 볼부재의 구 형상부를 세부 성형하고[도 2의 (e) 참조]; 볼부재와 로드부재 사이의 목부 형상을 성형한 다음[도 2의 (f) 참조]; 최종 형상으로 마무리 성형[도 2의 (g) 참조]하는 과정을 거쳐 형성되게 된다.Referring to FIG. 2, a conventionally used ball stud 20 manufacturing process is shown as an example. As shown in FIG. 2, the ball stud 20 cuts a cylindrical rod-shaped metal material to size (see FIG. 2 (a)); After preforming [see Fig. 2 (b)]; Molding one side of the roll of the rod member [see Fig. 2 (c)]; After preforming the spherical part on the ball member part [see Fig. 2 (d)]; Detailed molding of the spherical portion of the ball member [see (e) in FIG. 2]; After molding the shape of the neck between the ball member and the rod member (see Fig. 2 (f)); It is formed through the process of finishing molding [see FIG. 2 (g)] into the final shape.
그러나, 이와 같이 단일의 금속 소재를 이용해 볼스터드를 형성하는 경우에는, 구형상의 볼부재와 막대 형상의 로드부재를 일체로 성형하는 과정에서 소재의 손실이 많이 발생할 수 있으며, 일측에 로드부재가 위치하고 있는 상태에서 볼부재의 구 형상부가 성형되어야 하기 때문에 정확한 구 형상부의 성형이 용이하지 않고, 볼스터드 제조를 위해 다수의 공정이 요구되기 때문에 제조 시간 및 비용이 증가되는 문제가 있다.However, in the case of forming the ball stud using a single metal material in this way, a lot of material loss may occur in the process of integrally molding the spherical ball member and the rod-shaped rod member, and the rod member is located on one side. Since the spherical portion of the ball member must be molded in the present state, it is not easy to accurately form the spherical portion, and since a number of processes are required to manufacture the ball stud, there is a problem in that manufacturing time and cost increase.
본 발명은 전술한 종래의 문제점을 해소하기 위한 것으로, 볼부재와 로드부재를 별도로 형성한 다음 이들을 용접함으로써 보다 신속하고 용이하게 제조될 수 있는 볼스터드 및 이의 제조방법을 제공하는 것을 목적으로 한다.The present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a ball stud and a method of manufacturing the same that can be manufactured more quickly and easily by separately forming a ball member and a rod member and then welding them.
전술한 목적을 달성하기 위한 본 발명의 대표적인 구성은 다음과 같다.Representative configurations of the present invention for achieving the above object are as follows.
본 발명의 일 실시예에 따르면, 스테빌라이저 링크 등에 장착되어 이용될 수 있는 볼스터드가 제공될 수 있다. 본 발명의 일 실시예에 따른 볼스터드는 구 형상부를 포함하는 볼부재와; 볼부재로부터 일측 방향으로 연장되어 형성되는 로드부재를 포함하고, 볼부재와 로드부재는 별도의 부재로 형성된 다음 용접을 통해 결합되도록 구성될 수 있다. 본 발명의 일 실시예에 따르면, 로드부재는 반경방향 외측으로 돌출되어 형성된 제1 플랜지 및 제2 플랜지를 포함하고, 제1 플랜지 및 제2 플랜지 중 볼부재에 인접하게 배치되는 제1 플랜지는 볼부재와 로드부재를 용접하는 과정에서 가열성형되어 형성되도록 구성될 수 있다.According to one embodiment of the present invention, a ball stud that can be used by being mounted on a stabilizer link or the like may be provided. A ball stud according to an embodiment of the present invention includes a ball member including a spherical portion; It includes a rod member extending in one direction from the ball member, and the ball member and the rod member may be formed as separate members and then coupled through welding. According to one embodiment of the present invention, the rod member includes a first flange and a second flange formed by protruding outward in the radial direction, and the first flange disposed adjacent to the ball member among the first flange and the second flange is a ball. It may be configured to be formed by heating and forming in the process of welding the member and the rod member.
본 발명의 일 실시예에 따르면, 제1 플랜지와 볼부재 사이에 위치하는 로드부재의 연결부는 볼부재와 로드부재를 용접하는 과정에서 최종 형상으로 가열성형되도록 구성될 수 있다.According to one embodiment of the present invention, the connecting portion of the rod member positioned between the first flange and the ball member may be configured to be heat-formed into a final shape in the process of welding the ball member and the rod member.
본 발명의 일 실시예에 따르면, 제1 플랜지와 제2 플랜지 사이에는 더스트 커버가 장착되는 장착홈이 구비될 수 있다.According to one embodiment of the present invention, a mounting groove in which a dust cover is mounted may be provided between the first flange and the second flange.
본 발명의 일 실시예에 따르면, 볼부재와 용접되기 이전에, 로드부재는 반경방향 외측으로 연장하는 제2 플랜지와; 제2 플랜지로부터 볼부재를 향해 연장하는 장착홈과; 장착홈으로부터 볼부재를 향해 연장하는 가열 성형부를 포함하도록 형성될 수 있다.According to one embodiment of the present invention, before being welded to the ball member, the rod member includes a second flange extending outwardly in the radial direction; a mounting groove extending from the second flange toward the ball member; It may be formed to include a heat-molded portion extending from the mounting groove toward the ball member.
본 발명의 일 실시예에 따르면, 가열 성형부는 볼부재를 향해 이동할수록 직경이 작아지는 구조로 형성될 수 있다.According to one embodiment of the present invention, the heat-molded portion may be formed in a structure in which the diameter decreases as it moves toward the ball member.
본 발명의 일 실시예에 따르면, 볼부재와 로드부재는 가공지그에 장착된 상태에서 볼부재와 로드부재에 서로 다른 전극의 전압을 인가하고 서로를 향해 가압하면서 용접되도록 구성될 수 있다.According to one embodiment of the present invention, the ball member and the rod member may be configured to be welded while applying voltages of different electrodes to the ball member and the rod member in a state of being mounted on a processing jig and pressing them toward each other.
본 발명의 일 실시예에 따르면, 로드부재의 제1 플랜지 및 연결부는 용접시 발생하는 용접열에 의해 가공지그 내에 형성된 공간부 내로 소재가 유입되면서 가열성형되도록 구성될 수 있다.According to one embodiment of the present invention, the first flange and the connecting portion of the rod member may be configured to be heat-formed while the material flows into the space formed in the processing jig by welding heat generated during welding.
본 발명의 일 실시예에 따르면, 스테빌라이저 링크 등에 장착되어 이용될 수 있는 볼스터드의 제조방법이 제공될 수 있다. 본 발명의 일 실시예에 따른 볼스터드 제조방법은 볼부재 및 로드부재를 준비하는 단계와; 볼부재 및 로드부재를 가공지그에 장착하는 단계와; 볼부재와 로드부재를 용접하는 단계와; 볼부재와 로드부재가 용접되어 형성된 볼스터드를 가공지그로부터 분리하는 단계를 포함할 수 있다. 본 발명의 일 실시예에 따르면, 볼부재 및 로드부재를 준비하는 단계에서 로드부재는 반경방향 외측으로 돌출된 제2 플랜지가 구비된 상태로 형성되고, 볼부재와 로드부재를 용접하는 단계에서 용접시 발생하는 용접열에 의해 반경방향 외측으로 돌출된 제1 플랜지가 로드부재에 가열성형되어 형성되고, 제1 플랜지는 제2 플랜지 보다 볼부재에 인접하게 위치되도록 구성될 수 있다.According to one embodiment of the present invention, a method of manufacturing a ball stud that can be used by being mounted on a stabilizer link or the like can be provided. A ball stud manufacturing method according to an embodiment of the present invention includes preparing a ball member and a rod member; Mounting the ball member and the rod member to a processing jig; welding the ball member and the rod member; A step of separating the ball stud formed by welding the ball member and the rod member from the processing jig may be included. According to one embodiment of the present invention, in the step of preparing the ball member and the rod member, the rod member is formed with a second flange protruding outward in the radial direction, and in the step of welding the ball member and the rod member, welding is performed. A first flange protruding outward in the radial direction is formed by heat-forming the rod member by welding heat generated during welding, and the first flange may be configured to be positioned closer to the ball member than the second flange.
본 발명의 일 실시예에 따르면, 볼부재와 로드부재를 용접하는 단계에서 용접시 발생하는 용접열에 의해 볼부재와 로드부재 사이의 연결부가 최종 형상으로 가열성형될 수 있다.According to one embodiment of the present invention, in the step of welding the ball member and the rod member, the connection between the ball member and the rod member may be heat-formed into a final shape by welding heat generated during welding.
본 발명의 일 실시예에 따르면, 볼부재 및 로드부재를 준비하는 단계에서, 로드부재는 반경방향 외측으로 돌출된 제2 플랜지와; 제2 플랜지로부터 볼부재를 향해 연장하는 장착홈과; 장착홈으로부터 볼부재를 향해 연장하는 가열 성형부를 포함하도록 형성될 수 있다.According to one embodiment of the present invention, in the step of preparing the ball member and the rod member, the rod member and the second flange protruding outward in the radial direction; a mounting groove extending from the second flange toward the ball member; It may be formed to include a heat-molded portion extending from the mounting groove toward the ball member.
본 발명의 일 실시예에 따르면, 가열 성형부는 볼부재를 향해 이동할수록 직경이 작아지는 구조로 형성될 수 있다.According to one embodiment of the present invention, the heat-molded portion may be formed in a structure in which the diameter decreases as it moves toward the ball member.
본 발명의 일 실시예에 따르면, 볼부재 및 로드부재를 가공지그에 장착하는 단계에서, 볼부재는 제1 지그에 삽입되어 장착되고, 로드부재는 제2 지그에 삽입되어 장착되고, 제1 지그와 제2 지그 중 하나 이상에는 볼스터드의 제1 플랜지 형성부가 구비되어 볼부재와 로드부재를 용접하여 결합할 때 용접열에 의해 제1 플랜지 형성부 내로 소재가 유입되면서 제1 플랜지가 가열성형되도록 구성될 수 있다.According to one embodiment of the present invention, in the step of mounting the ball member and the rod member to the processing jig, the ball member is inserted into and mounted in the first jig, the rod member is inserted into and mounted in the second jig, and the first jig And at least one of the second jigs is provided with a first flange forming part of the ball stud, so that when the ball member and the rod member are welded and coupled, the material is introduced into the first flange forming part by welding heat so that the first flange is heat-formed It can be.
본 발명의 일 실시예에 따르면, 제1 지그와 제2 지그 중 하나 이상에는 볼스터드의 연결부 형성부가 구비되어 볼부재와 로드부재를 용접하여 결합할 때 용접열에 의해 연결부 공간부 내로 소재가 유입되면서 볼부재와 로드부재 사이의 연결부가 최종 형상으로 가열성형되도록 구성될 수 있다.According to one embodiment of the present invention, at least one of the first jig and the second jig is provided with a connection part forming part of a ball stud, and when the ball member and the rod member are welded and coupled, the material is introduced into the space of the connection part by welding heat. The connection between the ball member and the rod member may be configured to be heat-formed into a final shape.
이 외에도, 본 발명에 따른 볼스터드 및 이의 제조방법에는 본 발명의 기술적 사상을 해치지 않는 범위에서 다른 부가적인 구성이 더 포함될 수 있다.In addition to this, the ball stud and its manufacturing method according to the present invention may further include other additional components within a range that does not impair the technical spirit of the present invention.
본 발명의 일 실시예에 따른 볼스터드는 볼부재와 로드부재를 별도로 형성한 다음 이들을 용접하여 형성되도록 구성되어 있기 때문에, 진원의 형상 및 조도가 중요시되는 볼부재의 구 형상부를 보다 정확한 형상으로 용이하게 형성할 수 있게 된다.Since the ball stud according to an embodiment of the present invention is configured to be formed by separately forming a ball member and a rod member and then welding them, the spherical part of the ball member, for which the shape of a perfect circle and roughness are important, can be easily formed into a more accurate shape. be able to form
또한, 본 발명의 일 실시예에 따른 볼스터드는 볼부재와 로드부재를 용접하여 결합하는 과정에서 로드부재에 더스트 커버 장착부의 일측 플랜지가 형성되도록 구성되어 있어, 로드부재를 보다 단순한 구조로 용이하게 형성하는 것이 가능하며, 이로 인해 로드부재 및 볼스터드의 제조공정이 보다 단순화되면서 생산성이 향상될 수 있고, 용접 과정에서 플랜지부에 변형이 발생하는 등의 문제를 억제할 수 있게 된다.In addition, the ball stud according to an embodiment of the present invention is configured such that one side flange of the dust cover mounting portion is formed on the rod member in the process of welding and coupling the ball member and the rod member, so that the rod member can be easily formed in a simpler structure. It is possible to do this, and as a result, the manufacturing process of the rod member and the ball stud can be more simplified, productivity can be improved, and problems such as deformation of the flange portion can be suppressed during the welding process.
도 1은 스테빌라이저 링크 등에 이용될 수 있는 볼조인트의 구조를 예시적으로 도시한다.1 shows the structure of a ball joint that can be used for a stabilizer link or the like by way of example.
도 2는 종래에 이용되고 있는 볼스터드의 제조과정을 예시적으로 도시한다.2 exemplarily shows a manufacturing process of a conventionally used ball stud.
도 3은 본 발명의 일 실시예에 따른 볼스터드의 구조를 예시적으로 도시한다.3 exemplarily shows the structure of a ball stud according to an embodiment of the present invention.
도 4는 본 발명의 일 실시예에 따른 볼스터드를 구성하는 로드부재의 용접 전 형상을 예시적으로 도시한다.4 exemplarily shows a shape before welding of a rod member constituting a ball stud according to an embodiment of the present invention.
도 5 및 도 6은 본 발명의 일 실시예에 따라 가공지그를 이용해 볼부재와 로드부재를 용접하여 결합하는 모습을 예시적으로 도시한다. [도 5는 용접 전의 상태를 도시하고, 도 6은 용접 후의 상태를 도시함]5 and 6 illustratively shows a state in which a ball member and a rod member are welded and coupled using a processing jig according to an embodiment of the present invention. [Fig. 5 shows a state before welding, and Fig. 6 shows a state after welding]
도 7은 본 발명의 일 실시예에 따른 볼스터드의 제조과정을 예시적으로 도시한다.7 exemplarily illustrates a manufacturing process of a ball stud according to an embodiment of the present invention.
<부호의 설명><Description of codes>
100: 볼스터드100: ball stud
200: 볼부재200: ball member
300: 로드부재300: rod member
310: 제1 플랜지310: first flange
320: 제2 플랜지320: second flange
330: 장착홈330: mounting groove
340: 연결부340: connection
350: 체결부350: fastening part
360: 공구 결합부360: tool coupling
370: 가열 성형부370: heat forming unit
380: (로드부재의 축방향 단부에 구비되는) 평면380: plane (provided at the axial end of the rod member)
380a: (로드부재의 축방향 단부에 구비되는) 오목면380a: concave surface (provided at the axial end of the rod member)
400: 가공지그400: processing jig
410: 제1 지그410: first jig
420: 볼부재 수용부420: ball member receiving part
430: 제2 지그430: second jig
440: 로드부재 수용부440: rod member accommodating part
450: 제2 플랜지 수용부450: second flange receiving portion
460: 장착홈 수용부460: mounting groove receiving part
470: 공간부470: space part
480: 제1 플랜지 형성부480: first flange forming part
490: 연결부 형성부490: connection part forming part
이하에서 기술되는 실시예들은 본 발명의 기술적 사상을 설명하기 위한 목적으로 예시된 것으로, 본 발명의 권리범위가 이하에 제시되는 실시예들이나 이에 대한 구체적 설명으로 제한되는 것은 아니다.The embodiments described below are exemplified for the purpose of explaining the technical idea of the present invention, and the scope of the present invention is not limited to the embodiments or specific description thereof presented below.
본 명세서에서 사용되는 모든 기술적 용어들 및 과학적 용어들은 달리 정의되지 않는 한 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자에게 일반적으로 이해되는 의미를 가지며, 본 명세서에서 사용되는 모든 용어들은 본 발명을 더욱 명확히 설명하기 위한 목적으로 선택된 것으로서 본 발명의 권리범위를 제한하기 위해 선택된 것이 아니다.All technical terms and scientific terms used in this specification have meanings commonly understood by those of ordinary skill in the art to which the present invention belongs, unless defined otherwise, and all terms used in this specification represent the present invention. It is selected for the purpose of more clearly explaining, and is not selected to limit the scope of the present invention.
본 명세서에서 사용되는 "포함하는", "구비하는", "갖는" 등과 같은 표현은 해당 표현이 포함되는 어구 또는 문장에서 달리 언급되지 않는 한 다른 실시예를 포함할 가능성을 내포하는 개방형 용어(open-ended terms)로 이해되어야 한다.Expressions such as "comprising," "including," "having," and the like used herein are open-ended terms that imply the possibility of including other embodiments unless otherwise stated in the phrase or sentence in which the expression is included. -ended terms).
본 명세서에 기재된 단수형의 표현은 달리 언급하지 않는 한 복수형의 의미를 포함할 수 있으며, 이는 청구범위에 기재된 단수형의 표현에도 마찬가지로 적용된다.Singular expressions described in this specification may include plural meanings unless otherwise stated, and this applies equally to singular expressions written in the claims.
본 명세서에서 어떤 구성요소가 다른 구성요소의 일측에 "위치되어" 있다거나 "형성되어" 있다고 언급되는 경우, 이는 어떤 구성요소가 다른 구성요소의 일측에 직접 접촉된 상태로 위치되거나 형성되는 것으로, 또는 새로운 다른 구성요소를 중간에 개재한 상태로 위치하거나 형성될 수 있는 것으로 이해되어야 한다.In this specification, when a component is referred to as being "located" or "formed" on one side of another component, this means that a component is positioned or formed in direct contact with one side of another component, Or it should be understood that it can be positioned or formed with other new components interposed therebetween.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예에 대해 본 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 용이하게 실시할 수 있을 정도로 상세하게 설명한다. 첨부된 도면에서, 동일하거나 대응하는 구성요소는 동일한 참조부호를 통해 지시되어 있으며, 이하의 실시예들의 설명에 있어서 동일하거나 대응하는 구성요소는 중복하여 기술하는 것이 생략될 수 있다. 다만, 아래의 설명에서 특정 구성요소에 관한 기술이 생략되어 있더라도, 이는 그러한 구성요소가 해당 실시예에 포함되지 않는 것으로 의도되지는 않는다.Hereinafter, with reference to the accompanying drawings, a preferred embodiment of the present invention will be described in detail so that those skilled in the art can easily practice it. In the accompanying drawings, identical or corresponding components are indicated by the same reference numerals, and overlapping description of identical or corresponding components in the description of the following embodiments may be omitted. However, even if a description of a specific component is omitted in the description below, this does not mean that the component is not included in the embodiment.
도 3을 참조하면, 본 발명의 일 실시예에 따른 볼스터드(100)의 구조가 예시적으로 도시되어 있다. 본 발명의 일 실시예에 따른 볼스터드(100)는 예컨대 차량의 스테빌라이저 링크 등의 볼조인트에 장착되어 이용되도록 구성될 수 있다.Referring to FIG. 3 , the structure of the ball stud 100 according to an embodiment of the present invention is exemplarily shown. The ball stud 100 according to an embodiment of the present invention may be configured to be used by being mounted on a ball joint of, for example, a stabilizer link of a vehicle.
본 발명의 일 실시예에 따르면, 볼스터드(100)는 볼부재(200)와 로드부재(300)를 포함할 수 있으며, 후술하는 바와 같이 볼부재(200)와 로드부재(300)를 별도로 형성한 다음 이들을 용접하여 형성되도록 구성된 것을 특징으로 한다.According to one embodiment of the present invention, the ball stud 100 may include a ball member 200 and a rod member 300, and as will be described later, the ball member 200 and the rod member 300 are formed separately. And then characterized in that it is configured to be formed by welding them.
본 발명의 일 실시예에 따르면, 볼부재(200)는 외주면에 구 형상부가 구비되도록 형성될 수 있으며, 통상의 볼스터드에서와 같이 이러한 구 형상부가 하우징 내로 삽입되어 상대회전하도록 구성될 수 있다.According to one embodiment of the present invention, the ball member 200 may be formed to have a spherical portion on an outer circumferential surface, and as in a conventional ball stud, such a spherical portion may be inserted into the housing and relatively rotated.
본 발명의 일 실시예에 따르면, 로드부재(300)는 볼부재(200)로부터 일측 방향으로 연장하는 대략 막대 형상의 구조로 형성될 수 있다.According to one embodiment of the present invention, the rod member 300 may be formed in a substantially bar-shaped structure extending in one direction from the ball member 200.
본 발명의 일 실시예에 따르면, 로드부재(300)의 일측에는 더스트 커버의 일단이 결합되는 장착부가 구비될 수 있다. 예컨대, 로드부재(300)에는 반경방향 외측으로 돌출되어 형성된 제1 플랜지(310) 및 제2 플랜지(320)가 구비되어, 이들 플랜지에 의해 더스트 커버의 일측 단부가 결합되는 장착홈(330)이 형성되도록 구성될 수 있다.According to one embodiment of the present invention, a mounting portion to which one end of the dust cover is coupled may be provided on one side of the rod member 300 . For example, the rod member 300 is provided with a first flange 310 and a second flange 320 protruding outward in the radial direction, and a mounting groove 330 to which one end of the dust cover is coupled by these flanges It can be configured to form.
본 발명의 일 실시예에 따르면, 로드부재(300)는 제1 플랜지(310)와 볼부재(200) 사이에 볼부재(200)와 연결되는 연결부(340)를 구비할 수 있으며, 볼부재(200)와의 연결을 위해 연결부(340)는 볼부재(200)를 향해 이동할수록 직경이 작아지는 대략 원추형의 구조를 갖도록 형성될 수 있다.According to one embodiment of the present invention, the rod member 300 may have a connection portion 340 connected to the ball member 200 between the first flange 310 and the ball member 200, and the ball member ( 200), the connecting portion 340 may be formed to have a substantially conical structure with a smaller diameter as it moves toward the ball member 200.
본 발명의 일 실시예에 따르면, 로드부재(300)는 제2 플랜지(320)로부터 볼부재(200)의 반대측으로 연장하는 연장부를 포함할 수 있으며, 이러한 연장부에는 나사부와 같은 체결부(350) 및/또는 공구 결합부(360) 등이 구비될 수 있다.According to one embodiment of the present invention, the rod member 300 may include an extension extending from the second flange 320 to the opposite side of the ball member 200, and the extension includes a fastening portion 350 such as a threaded portion. ) and/or a tool coupling part 360 and the like may be provided.
본 발명의 일 실시예에 따르면, 로드부재(300)의 볼부재(200)를 향하는 축방향 단면은 도 4에 도시된 바와 같이 축방향에 수직한 평면(380)으로 형성될 수도 있고, 도 4에 점선으로 도시된 바와 같이 축방향으로 함몰된 오목면(380a)으로 형성될 수도 있다.According to one embodiment of the present invention, the axial cross section of the rod member 300 toward the ball member 200 may be formed as a plane 380 perpendicular to the axial direction as shown in FIG. As shown in the dotted line, it may be formed as a concave surface 380a recessed in the axial direction.
본 발명의 일 실시예에 따르면, 더스트 커버 장착부를 형성하기 위해 구비되는 플랜지 가운데 볼부재(200)에 인접하게 배치되는 플랜지[제1 플랜지(310)]는 볼부재(200)와 로드부재(300)를 용접하여 결합하는 과정에서 용접열에 의해 가열성형되어 형성되도록 구성될 수 있다.According to one embodiment of the present invention, among the flanges provided to form the dust cover mounting portion, the flange (first flange 310) disposed adjacent to the ball member 200 is the ball member 200 and the rod member 300. ) It may be configured to be formed by heating and forming by welding heat in the process of welding and combining.
예컨대, 본 발명의 일 실시예에 따르면, 로드부재(300)는 도 4에 도시된 바와 같이 볼부재(200)와 용접하기 이전에는 제1 플랜지(310)가 구비되지 않은 상태로 형성된 다음, 이러한 로드부재(300)를 볼부재(200)와 용접하여 결합하는 과정에서 볼부재(200)와 로드부재(300) 사이의 연결부분이 용접열에 의해 가열성형 되면서 제1 플랜지(310)가 형성되도록 구성될 수 있다.For example, according to one embodiment of the present invention, the rod member 300 is formed in a state in which the first flange 310 is not provided before welding with the ball member 200 as shown in FIG. In the process of combining the rod member 300 with the ball member 200 by welding, the connection portion between the ball member 200 and the rod member 300 is heat-formed by welding heat so that the first flange 310 is formed. It can be.
또한, 본 발명의 일 실시예에 따르면, 제1 플랜지(310)와 볼부재(200) 사이에 위치하는 로드부재(300)의 연결부(340)도 볼부재(200)와 로드부재(300)를 용접하는 과정에서 용접열에 의해 최종 형상으로 가열성형되도록 구성될 수 있다.In addition, according to one embodiment of the present invention, the connecting portion 340 of the rod member 300 located between the first flange 310 and the ball member 200 also connects the ball member 200 and the rod member 300. In the process of welding, it may be configured to be heat-formed into a final shape by welding heat.
구체적으로, 본 발명의 일 실시예에 따르면, 로드부재(300)는 볼부재(200)와 용접되기 전에 도 4에 도시된 바와 같이 제2 플랜지(320)와; 제2 플랜지(320)로부터 볼부재(200)를 향해 연장하는 장착홈(330)과; 장착홈(330)으로부터 볼부재(200)를 향해 연장하는 가열 성형부(370)를 포함하도록 형성되어, 장착홈(330)의 일측 단부에 제1 플랜지(310)가 구비되지 않고 연결부(340)에 대응하는 부분이 최종 형상에 비해 작은 직경으로 형성되도록 구성될 수 있다.Specifically, according to one embodiment of the present invention, the rod member 300 is a second flange 320 as shown in Figure 4 before being welded to the ball member 200; a mounting groove 330 extending from the second flange 320 toward the ball member 200; It is formed to include a heating molding part 370 extending from the mounting groove 330 toward the ball member 200, and the first flange 310 is not provided at one end of the mounting groove 330, and the connecting portion 340 A portion corresponding to may be configured to be formed with a smaller diameter than the final shape.
본 발명의 일 실시예에 따르면, 가열 성형부(370)는 볼부재(200)를 향해 이동할수록 직경이 작아지는 구조(예컨대, 원추형의 구조)로 형성될 수 있으며, 가열 성형부(370)는 용접 과정에서 제1 플랜지(310) 및 연결부(340)가 가열성형될 수 있도록 용접 후 제1 플랜지(310)와 연결부(340)의 축방향 길이에 비해 긴 축방향 길이를 갖도록 형성될 수 있다.According to one embodiment of the present invention, the heat-forming part 370 may be formed in a structure (eg, a conical structure) in which the diameter decreases as it moves toward the ball member 200, and the heat-forming part 370 The first flange 310 and the connecting portion 340 may be formed to have a longer axial length than the axial length of the first flange 310 and the connecting portion 340 after welding so that the first flange 310 and the connecting portion 340 can be heat-formed during the welding process.
도 5 및 도 6을 참조하면, 제1 플랜지(310)가 구비되지 않은 로드부재(300)를 볼부재(200)와 용접하는 과정에서 용접열에 의해 제1 플랜지(310) 및 연결부(340)가 가열성형되어 형성되는 모습이 개략적으로 도시되어 있다.5 and 6, in the process of welding the rod member 300 without the first flange 310 and the ball member 200, the first flange 310 and the connecting portion 340 are formed by welding heat. A shape formed by heating is schematically shown.
도면에 도시된 바와 같이, 본 발명의 일 실시예에 따른 볼스터드(100)는 볼부재(200)와 로드부재(300)를 가공지그(400)에 장착한 상태에서 양측에 서로 다른 전극의 전압을 인가하고 서로를 향해 가압하면서 용접되도록 구성될 수 있다.As shown in the figure, the ball stud 100 according to an embodiment of the present invention has different electrode voltages on both sides in a state where the ball member 200 and the rod member 300 are mounted on the processing jig 400. It may be configured to be welded while applying and pressing toward each other.
본 발명의 일 실시예에 따르면, 볼부재(200)와 로드부재(300)를 용접하여 결합하는데 이용되는 가공지그(400)는 볼부재(200)가 장착되는 제1 지그(410)와 로드부재(300)가 장착되는 제2 지그(430)를 포함하여 구성될 수 있다.According to one embodiment of the present invention, the processing jig 400 used to combine the ball member 200 and the rod member 300 by welding includes the first jig 410 to which the ball member 200 is mounted and the rod member. It may be configured to include a second jig 430 to which 300 is mounted.
본 발명의 일 실시예에 따르면, 제1 지그(410) 및 제2 지그(430)는 각각 볼스터드의 축방향에 수직한 방향으로 슬라이딩 이동 가능한 복수의 부재로 구성되어 이들 사이에 볼부재(200) 및 로드부재(300)를 수용하여 장착하도록 구성될 수 있다.According to one embodiment of the present invention, the first jig 410 and the second jig 430 are composed of a plurality of members capable of sliding in a direction perpendicular to the axial direction of the ball stud, respectively, and the ball member 200 between them. ) and the rod member 300 may be configured to be accommodated and mounted.
본 발명의 일 실시예에 따르면, 제1 지그(410)는 볼부재 수용부(420)가 구비되어 볼부재 수용부(420) 내에 볼부재(200)가 삽입되어 장착되도록 구성될 수 있다.According to one embodiment of the present invention, the first jig 410 may be configured to be equipped with a ball member accommodating portion 420 so that the ball member 200 is inserted into the ball member accommodating portion 420 and mounted.
본 발명의 일 실시예에 따르면, 제2 지그(430)에는 로드부재(300)가 전부 또는 일부 삽입될 수 있는 로드부재 수용부(440)가 구비될 수 있으며, 로드부재 수용부(440)의 일측에는 로드부재(300)의 제2 플랜지(320)가 삽입되어 결합될 수 있는 제2 플랜지 수용부(450)가 구비될 수 있고, 제2 플랜지 수용부(450)의 일측에는 장착홈 수용부(460)가 구비되어 장착홈 수용부(460) 내에 로드부재(300)의 장착홈(330)이 위치하도록 구성될 수 있다.According to one embodiment of the present invention, the second jig 430 may be provided with a rod member accommodating portion 440 into which all or part of the rod member 300 can be inserted, and the rod member accommodating portion 440 One side may be provided with a second flange accommodating portion 450 into which the second flange 320 of the rod member 300 is inserted and coupled, and one side of the second flange accommodating portion 450 is a mounting groove accommodating portion. 460 may be provided so that the mounting groove 330 of the rod member 300 is located in the mounting groove accommodating portion 460 .
본 발명의 일 실시예에 따르면, 볼부재(200)가 장착된 제1 지그(410)와 로드부재(300)가 장착된 제2 지그(430)는 도 5에 도시된 바와 같이 서로 이격된 상태로 배치되도록 구성될 수 있다.According to one embodiment of the present invention, the first jig 410 to which the ball member 200 is mounted and the second jig 430 to which the rod member 300 is mounted are spaced apart from each other as shown in FIG. It can be configured to be arranged as.
이러한 상태에서, 제1 지그(410)에 장착된 볼부재(200)와 제2 지그(430)에 장착된 로드부재(300)에 서로 다른 전극의 전압을 인가하고 제1 지그(410)와 제2 지그(430)를 서로를 향해 가압하면서 용접을 수행하게 되면, 볼부재(200)와 로드부재(300)가 용접되어 결합되면서 본 발명의 일 실시예에 따른 볼스터드(100)가 형성될 수 있게 된다.In this state, voltages of different electrodes are applied to the ball member 200 mounted on the first jig 410 and the rod member 300 mounted on the second jig 430, and the voltage of the first jig 410 and the second jig 410 are applied. When welding is performed while pressing the two jigs 430 toward each other, the ball member 200 and the rod member 300 are welded and coupled to form the ball stud 100 according to an embodiment of the present invention. there will be
본 발명의 일 실시예에 따르면, 볼부재(200)와 로드부재(300)를 용접 결합할 때 볼부재(200)와 로드부재(300) 사이의 용접 부위에는 용접열에 의한 국부적인 가열이 발생해 성형 효과가 발생할 수 있고, 이로 인해 제1 지그(410) 및/또는 제2 지그(430)에 형성된 공간부(470) 내로 소재가 채워지면서 로드부재(300)에 제1 플랜지(310)가 형성되고 연결부(340)가 최종 형상으로 가열성형될 수 있게 된다.According to one embodiment of the present invention, when the ball member 200 and the rod member 300 are welded together, local heating by welding heat occurs in a welded portion between the ball member 200 and the rod member 300. A molding effect may occur, and as a result, the first flange 310 is formed on the rod member 300 while the material is filled into the space 470 formed in the first jig 410 and/or the second jig 430. And the connection part 340 can be heat-formed into the final shape.
구체적으로, 도면에 도시된 실시형태에서 볼부재(200)가 장착되는 제1 지그(410)의 하부와 로드부재(300)가 장착되는 제2 지그(430)의 상부에는 제1 플랜지(310)에 대응되는 형상을 갖는 제1 플랜지 형성부(480)가 구비되어 볼부재(200)와 로드부재(300)를 용접 결합할 때 용접열에 의해 제1 플랜지 형성부(480) 내로 소재가 유입되면서 제1 플랜지(310)가 가열성형되도록 구성되어 있으며, 볼부재(200)가 장착되는 제1 지그(410)는 제1 플랜지 형성부(480)의 일측에 연결부(340)에 대응되는 형상을 갖는 연결부 형성부(490)가 구비되어 볼부재(200)와 로드부재(300)를 용접할 때 용접열에 의해 연결부 형성부(490) 내로 소재가 유입되면서 연결부(340)가 최종 형상으로 가열성형되도록 구성되어 있다.Specifically, in the embodiment shown in the drawing, the lower portion of the first jig 410 to which the ball member 200 is mounted and the upper portion of the second jig 430 to which the rod member 300 is mounted include a first flange 310 When the ball member 200 and the rod member 300 are welded together with the first flange forming part 480 having a shape corresponding to the material flowing into the first flange forming part 480 by welding heat, One flange 310 is configured to be heat-formed, and the first jig 410 to which the ball member 200 is mounted is a connection portion having a shape corresponding to the connection portion 340 on one side of the first flange forming portion 480. When the forming part 490 is provided and the ball member 200 and the rod member 300 are welded, the material is introduced into the connection part forming part 490 by welding heat, and the connection part 340 is configured to be heat-molded into the final shape there is.
다만, 도면에 도시된 실시형태에서는 볼부재(200)가 장착되는 제1 지그(410)에 연결부 형성부(490) 및 제1 플랜지 형성부(480)의 일부가 형성되고 로드부재(300)가 장착되는 제2 지그(430)에 제1 플랜지 형성부(480)의 나머지 부분이 형성되도록 가공지그(400)가 형성되어 있으나, 가공지그(400)는 제1 플랜지 형성부(480) 및 연결부 형성부(490)가 제1 지그(410) 및 제2 지그(430) 중 하나 이상에 배치되도록 적절히 변형되어 실시되어도 무방하다.However, in the embodiment shown in the drawing, a part of the connection part forming part 490 and the first flange forming part 480 is formed in the first jig 410 to which the ball member 200 is mounted, and the rod member 300 The processing jig 400 is formed such that the remaining portion of the first flange forming portion 480 is formed on the second jig 430 to be mounted, but the processing jig 400 forms the first flange forming portion 480 and the connection portion. The portion 490 may be properly modified and implemented so as to be disposed on one or more of the first jig 410 and the second jig 430 .
이처럼, 본 발명의 일 실시예에 따른 볼스터드(100)는 더스트 커버 장착부를 형성하는 플랜지 가운데 볼부재(200)에 인접하게 배치되는 플랜지[제1 플랜지(310)]가 로드부재(300)를 볼부재(200)에 용접하는 과정에서 발생되는 용접열에 의해 가열성형되도록 구성되어 있기 때문에, 로드부재(300)의 제조시에는 로드부재(300)의 외주면에 제1 플랜지(310)를 형성할 필요가 없게 되고, 이로 인해 로드부재(300)를 보다 단순한 구조로 용이하게 형성하는 것이 가능해 지게 된다.As such, in the ball stud 100 according to an embodiment of the present invention, the flange (first flange 310) disposed adjacent to the ball member 200 among the flanges forming the dust cover mounting portion supports the rod member 300. Since it is configured to be heat-formed by welding heat generated in the process of welding the ball member 200, when manufacturing the rod member 300, it is necessary to form the first flange 310 on the outer circumferential surface of the rod member 300. There is no, and thus it becomes possible to easily form the rod member 300 with a simpler structure.
또한, 본 발명의 일 실시예에 따른 볼스터드(100)는 용접 전의 로드부재(300)에 제1 플랜지(310)가 구비되지 않기 때문에 볼부재(200)와 로드부재(300)의 용접 결합을 위한 가공지그가 보다 단순한 구조로 형성될 수 있고, 용접 부위에 인접하게 위치하는 제1 플랜지(310)가 미리 형성된 상태로 용접이 수행되지 않기 때문에 용접열에 의한 제1 플랜지(310)의 열변형 등을 방지할 수 있게 된다.In addition, since the ball stud 100 according to an embodiment of the present invention does not have the first flange 310 on the rod member 300 before welding, the ball member 200 and the rod member 300 are not welded together. Since the welding is not performed with the first flange 310 positioned adjacent to the welding portion pre-formed, thermal deformation of the first flange 310 due to welding heat, etc. will be able to prevent
한편, 도 7을 참조하면 전술한 내용에 따라 본 발명의 일 실시예에 따른 볼스터드(100)를 제조하는 공정 순서도가 예시적으로 정리되어 있다.Meanwhile, referring to FIG. 7 , a flow chart of a process for manufacturing the ball stud 100 according to an embodiment of the present invention is exemplarily organized according to the above description.
도 7에 도시된 바와 같이, 본 발명의 일 실시예에 따른 볼스터드(100)는 볼부재 및 로드부재를 준비하고(S100); 볼부재 및 로드부재를 가공지그에 장착하고(S200); 볼부재와 로드부재를 용접하여 결합하고(S300); 볼부재와 로드부재가 용접되어 형성된 볼스터드를 가공지그로부터 분리(S400)하는 단계를 거쳐 형성될 수 있다.As shown in FIG. 7, the ball stud 100 according to an embodiment of the present invention prepares a ball member and a rod member (S100); Mounting the ball member and the rod member to the processing jig (S200); Joining the ball member and the rod member by welding (S300); It may be formed through the step of separating (S400) the ball stud formed by welding the ball member and the rod member from the processing jig.
본 발명의 일 실시예에 따르면, 볼부재 및 로드부재를 준비 단계(S100)에서는 볼부재(200)와 로드부재(300)가 각각 별도의 부재로 형성되어 준비될 수 있으며, 이 때 로드부재(300)는 전술한 바와 같이 더스트 커버 장착부의 일측 플랜지[볼부재에 인접하여 배치되는 제1 플랜지(310)]가 구비되지 않은 상태로 형성될 수 있다.According to one embodiment of the present invention, in the step of preparing the ball member and the rod member (S100), the ball member 200 and the rod member 300 may be formed and prepared as separate members, and at this time, the rod member ( 300) may be formed in a state where one side flange of the dust cover mounting portion (the first flange 310 disposed adjacent to the ball member) is not provided as described above.
본 발명의 일 실시예에 따르면, 볼부재 및 로드부재를 가공지그에 장착하는 단계(S200)에서 볼부재(200)와 로드부재(300)는 각각 개별 지그[제1 지그(410) 및 제2 지그(430)]에 나뉘어 장착될 수 있으며, 가열 성형부(370)는 가공지그(400)에 구비된 공간부(470) 내에 위치하도록 배치될 수 있다.According to one embodiment of the present invention, in the step of mounting the ball member and the rod member on the processing jig (S200), the ball member 200 and the rod member 300 are individually jig [first jig 410 and second jig 410]. The jig 430] may be divided and mounted, and the heat forming unit 370 may be disposed to be located within the space 470 provided in the processing jig 400.
다음으로, 볼부재와 로드부재를 용접하는 단계(S300)에서는 볼부재(200)와 로드부재(300)에 서로 다른 전극의 전압을 인가한 상태에서 볼부재(200)가 장착된 제1 지그(410)와 로드부재(300)가 장착된 제2 지그(430)를 서로를 향하는 방향으로 가압하면서 용접이 수행되게 된다.Next, in the step of welding the ball member and the rod member (S300), the ball member 200 and the rod member 300 are loaded with a first jig ( 410) and the second jig 430 on which the rod member 300 is mounted are pressed toward each other while welding is performed.
이러한 용접 결합시, 볼부재(200)와 로드부재(300) 사이의 용접 부위에서는 용접열에 의한 국부적인 가열 성형이 발생하게 되고, 이러한 과정에서 로드부재(300)에는 전술한 바와 같이 제1 플랜지(310)가 형성되고 연결부(340)가 최종 형상으로 가열성형되게 된다.At the time of this welding connection, local heating and forming by welding heat occurs at the welding site between the ball member 200 and the rod member 300, and in this process, the rod member 300 has a first flange as described above ( 310) is formed and the connection part 340 is heat-molded into the final shape.
다음으로, 볼부재와 로드부재가 용접되어 형성된 볼스터드를 가공지그로부터 분리하는 단계(S400)에서는 용접 결합이 완료된 볼스터드(100)가 가공지그로부터 분리되게 되며, 분리된 볼스터드(100)는 필요에 따라 마무리 공정이 수행되어 완성될 수 있게 된다.Next, in the step of separating the ball stud formed by welding the ball member and the rod member from the processing jig (S400), the welded ball stud 100 is separated from the processing jig, and the separated ball stud 100 A finishing process is performed as needed to enable completion.
이상 본 발명을 구체적인 구성요소 등과 같은 특정 사항들과 한정된 실시예에 의해 설명하였으나, 이들 실시예들은 본 발명의 보다 전반적인 이해를 돕기 위해서 제공된 것일 뿐, 본 발명이 이에 한정되는 것은 아니며, 본 발명이 속하는 기술분야에서 통상적인 지식을 가진 자라면 이러한 기재로부터 다양한 수정 및 변형을 꾀할 수 있다.Although the present invention has been described with specific details and limited examples, such as specific components, these examples are provided only to help a more general understanding of the present invention, and the present invention is not limited thereto, and the present invention is not limited thereto. Those skilled in the art can make various modifications and variations from these descriptions.
따라서, 본 발명의 사상은 앞서 설명된 실시예들에 국한되어 정해져서는 아니 되며, 후술하는 청구범위뿐만 아니라 이 청구범위에 균등하게 또는 등가적으로 변형된 모든 것들은 본 발명의 사상의 범주에 속한다고 할 것이다.Therefore, the spirit of the present invention should not be limited to the above-described embodiments and should not be determined, and all things equivalent or equivalently modified in the claims as well as the claims described below belong to the scope of the spirit of the present invention. something to do.

Claims (13)

  1. 구 형상부를 포함하는 볼부재(200)와;a ball member 200 including a spherical portion;
    상기 볼부재(200)로부터 일측 방향으로 연장되어 형성되는 로드부재(300)를 포함하고,It includes a rod member 300 extending in one direction from the ball member 200,
    상기 볼부재(200)와 상기 로드부재(300)는 별도의 부재로 형성된 다음 용접을 통해 결합되도록 구성되고,The ball member 200 and the rod member 300 are formed as separate members and then configured to be coupled through welding,
    상기 로드부재(300)는 반경방향 외측으로 돌출되어 형성된 제1 플랜지(310) 및 제2 플랜지(320)를 포함하고,The rod member 300 includes a first flange 310 and a second flange 320 protruding outward in the radial direction,
    상기 제1 플랜지(310) 및 상기 제2 플랜지(320) 중 상기 볼부재(200)에 인접하게 배치되는 제1 플랜지(310)는 상기 볼부재(200)와 상기 로드부재(300)를 용접하는 과정에서 가열성형되어 형성되도록 구성되는,Among the first flange 310 and the second flange 320, the first flange 310 disposed adjacent to the ball member 200 welds the ball member 200 and the rod member 300. It is configured to be formed by heating in the process,
    볼스터드.ball stud.
  2. 제1항에 있어서,According to claim 1,
    상기 제1 플랜지(310)와 상기 볼부재(200) 사이에 위치하는 상기 로드부재(300)의 연결부(340)는 상기 볼부재(200)와 상기 로드부재(300)를 용접하는 과정에서 최종 형상으로 가열성형되는,The connection part 340 of the rod member 300 located between the first flange 310 and the ball member 200 has a final shape in the process of welding the ball member 200 and the rod member 300. heat-formed with
    볼스터드.ball stud.
  3. 제1항 또는 제2항에 있어서,According to claim 1 or 2,
    상기 제1 플랜지(310)와 상기 제2 플랜지(320) 사이에는 더스트 커버가 장착되는 장착홈(330)이 구비되는,Between the first flange 310 and the second flange 320, a mounting groove 330 to which a dust cover is mounted is provided.
    볼스터드.ball stud.
  4. 제1항 내지 제3항 중 어느 한 항에 있어서,According to any one of claims 1 to 3,
    상기 볼부재(200)와 용접되기 이전에, 상기 로드부재(300)는 반경방향 외측으로 연장하는 제2 플랜지(320)와; 상기 제2 플랜지(320)로부터 볼부재(200)를 향해 연장하는 장착홈(330)과; 상기 장착홈(330)으로부터 볼부재(200)를 향해 연장하는 가열 성형부(370)를 포함하도록 형성되는,Before being welded to the ball member 200, the rod member 300 includes a second flange 320 extending radially outward; a mounting groove 330 extending from the second flange 320 toward the ball member 200; It is formed to include a heat molding part 370 extending from the mounting groove 330 toward the ball member 200,
    볼스터드.ball stud.
  5. 제4항에 있어서,According to claim 4,
    상기 가열 성형부(370)는 볼부재(200)를 향해 이동할수록 직경이 작아지는 구조로 형성되는,The heat forming part 370 is formed in a structure in which the diameter decreases as it moves toward the ball member 200.
    볼스터드.ball stud.
  6. 제1항 내지 제5항 중 어느 한 항에 있어서,According to any one of claims 1 to 5,
    상기 볼부재(200)와 상기 로드부재(300)는 가공지그(400)에 장착된 상태에서 볼부재(200)와 로드부재(300)에 서로 다른 전극의 전압을 인가하고 서로를 향해 가압하면서 용접되는,The ball member 200 and the rod member 300 are welded while applying voltages of different electrodes to the ball member 200 and the rod member 300 in a state in which they are mounted on the processing jig 400 and pressing them toward each other. felled,
    볼스터드.ball stud.
  7. 제6항에 있어서,According to claim 6,
    상기 로드부재(300)의 제1 플랜지(310) 및 연결부(340)는 용접시 발생하는 용접열에 의해 가공지그(400) 내에 형성된 공간부(470) 내로 소재가 유입되면서 가열성형되는,The first flange 310 and the connecting portion 340 of the rod member 300 are heat-formed as the material flows into the space 470 formed in the processing jig 400 by welding heat generated during welding,
    볼스터드.ball stud.
  8. 볼부재(200) 및 로드부재(300)를 준비하는 단계와;preparing the ball member 200 and the rod member 300;
    볼부재(200) 및 로드부재(300)를 가공지그에 장착하는 단계와;Mounting the ball member 200 and the rod member 300 to a processing jig;
    볼부재(200)와 로드부재(300)를 용접하는 단계와;welding the ball member 200 and the rod member 300;
    볼부재(200)와 로드부재(300)가 용접되어 형성된 볼스터드(100)를 가공지그로부터 분리하는 단계를 포함하고,A step of separating the ball stud 100 formed by welding the ball member 200 and the rod member 300 from the processing jig,
    볼부재(200) 및 로드부재(300)를 준비하는 단계에서, 로드부재(300)는 반경방향 외측으로 돌출된 제2 플랜지(320)가 구비된 상태로 형성되고,In the step of preparing the ball member 200 and the rod member 300, the rod member 300 is formed with a second flange 320 protruding outward in the radial direction,
    볼부재(200)와 로드부재(300)를 용접하는 단계에서, 용접시 발생하는 용접열에 의해 반경방향 외측으로 돌출된 제1 플랜지(310)가 로드부재(300)에 가열성형되어 형성되고,In the step of welding the ball member 200 and the rod member 300, a first flange 310 protruding outward in the radial direction is formed by heat-forming the rod member 300 by welding heat generated during welding,
    상기 제1 플랜지(310)는 상기 제2 플랜지(320) 보다 볼부재(200)에 인접하게 위치되는,The first flange 310 is located closer to the ball member 200 than the second flange 320,
    볼스터드 제조방법.Ball stud manufacturing method.
  9. 제8항에 있어서,According to claim 8,
    볼부재(200)와 로드부재(300)를 용접하는 단계에서, 용접시 발생하는 용접열에 의해 볼부재(200)와 로드부재(300) 사이의 연결부(340)가 최종 형상으로 가열성형되는,In the step of welding the ball member 200 and the rod member 300, the connection portion 340 between the ball member 200 and the rod member 300 is heat-formed into a final shape by welding heat generated during welding,
    볼스터드 제조방법.Ball stud manufacturing method.
  10. 제8항 또는 제9항에 있어서,The method of claim 8 or 9,
    볼부재(200) 및 로드부재(300)를 준비하는 단계에서, 로드부재(300)는 반경방향 외측으로 돌출된 제2 플랜지(320)와; 상기 제2 플랜지(320)로부터 볼부재(200)를 향해 연장하는 장착홈(330)과; 상기 장착홈(330)으로부터 볼부재(200)를 향해 연장하는 가열 성형부(370)를 포함하도록 형성되는,In the step of preparing the ball member 200 and the rod member 300, the rod member 300 includes a second flange 320 protruding outward in the radial direction; a mounting groove 330 extending from the second flange 320 toward the ball member 200; It is formed to include a heat molding part 370 extending from the mounting groove 330 toward the ball member 200,
    볼스터드 제조방법.Ball stud manufacturing method.
  11. 제10항에 있어서,According to claim 10,
    상기 가열 성형부(370)는 볼부재(200)를 향해 이동할수록 직경이 작아지는 구조로 형성되는,The heat-forming part 370 is formed in a structure in which the diameter decreases as it moves toward the ball member 200.
    볼스터드 제조방법.Ball stud manufacturing method.
  12. 제8항 내지 제11항 중 어느 한 항에 있어서,According to any one of claims 8 to 11,
    볼부재(200) 및 로드부재(300)를 가공지그에 장착하는 단계에서, 볼부재(200)는 제1 지그(410)에 삽입되어 장착되고, 로드부재(300)는 제2 지그(430)에 삽입되어 장착되고,In the step of mounting the ball member 200 and the rod member 300 to the processing jig, the ball member 200 is inserted into and mounted in the first jig 410, and the rod member 300 is mounted on the second jig 430. is inserted and mounted in
    상기 제1 지그(410)와 상기 제2 지그(430) 중 하나 이상에는 제1 플랜지 형성부(480)가 구비되어, 볼부재(200)와 로드부재(300)를 용접하여 결합할 때 용접열에 의해 상기 제1 플랜지 형성부(480) 내로 소재가 유입되면서 제1 플랜지(310)가 가열성형되도록 구성되는,At least one of the first jig 410 and the second jig 430 is provided with a first flange forming part 480, so that when the ball member 200 and the rod member 300 are welded and coupled, welding heat is reduced. As the material is introduced into the first flange forming part 480 by the first flange 310 is configured to be heat-formed,
    볼스터드 제조방법.Ball stud manufacturing method.
  13. 제12항에 있어서,According to claim 12,
    상기 제1 지그(400)와 상기 제2 지그(500) 중 하나 이상에는 연결부 형성부(490)가 구비되어, 볼부재(200)와 로드부재(300)를 용접하여 결합할 때 용접열에 의해 상기 연결부 형성부(490) 내로 소재가 유입되면서 볼부재(200)와 로드부재(300) 사이의 연결부(340)가 최종 형상으로 가열성형되도록 구성되는,At least one of the first jig 400 and the second jig 500 is provided with a connection part forming part 490, and when the ball member 200 and the rod member 300 are welded and coupled, welding heat is generated. As the material flows into the connection forming part 490, the connection part 340 between the ball member 200 and the rod member 300 is configured to be heat-molded into a final shape,
    볼스터드 제조방법.Ball stud manufacturing method.
PCT/KR2021/018896 2021-12-13 2021-12-13 Ball stud and manufacturing method therefor WO2023113054A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0133383Y1 (en) * 1995-10-31 1999-05-01 강태룡 Ball stud in automotive ball joint
KR20110067883A (en) * 2009-12-15 2011-06-22 (주)삼우 Ball joint
US20180087564A1 (en) * 2015-05-11 2018-03-29 Thk Co., Ltd. Ball joint and method for manufacturing ball joint
KR20200089185A (en) * 2019-01-16 2020-07-24 주식회사 일진 Ball Joint
KR20220078384A (en) * 2020-12-03 2022-06-10 주식회사 일진 Ball stud and manufacturing method therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0133383Y1 (en) * 1995-10-31 1999-05-01 강태룡 Ball stud in automotive ball joint
KR20110067883A (en) * 2009-12-15 2011-06-22 (주)삼우 Ball joint
US20180087564A1 (en) * 2015-05-11 2018-03-29 Thk Co., Ltd. Ball joint and method for manufacturing ball joint
KR20200089185A (en) * 2019-01-16 2020-07-24 주식회사 일진 Ball Joint
KR20220078384A (en) * 2020-12-03 2022-06-10 주식회사 일진 Ball stud and manufacturing method therefor

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