KR20090038208A - Head assembly for nut feeder of projection welder - Google Patents

Head assembly for nut feeder of projection welder Download PDF

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Publication number
KR20090038208A
KR20090038208A KR1020070103584A KR20070103584A KR20090038208A KR 20090038208 A KR20090038208 A KR 20090038208A KR 1020070103584 A KR1020070103584 A KR 1020070103584A KR 20070103584 A KR20070103584 A KR 20070103584A KR 20090038208 A KR20090038208 A KR 20090038208A
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KR
South Korea
Prior art keywords
nut
welding
head assembly
projection
head
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KR1020070103584A
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Korean (ko)
Inventor
서종인
최민숙
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서종인
최민숙
주식회사 아산성우하이텍
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Priority to KR1020070103584A priority Critical patent/KR20090038208A/en
Publication of KR20090038208A publication Critical patent/KR20090038208A/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
    • B23K11/14—Projection welding
    • 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
    • B23K11/36—Auxiliary equipment
    • 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
    • B23P19/001—Article feeders for assembling machines
    • B23P19/003—Escapement mechanisms used therewith
    • 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
    • B23P19/001—Article feeders for assembling machines
    • B23P19/006—Holding or positioning the article in front of the applying tool
    • 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
    • B23P19/10—Aligning parts to be fitted together
    • B23P19/12—Alignment of parts for insertion into bores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
    • B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
    • 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
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02—Arrangements for handling screws or nuts
    • B25B23/04—Arrangements for handling screws or nuts for feeding screws or nuts
    • B25B23/06—Arrangements for handling screws or nuts for feeding screws or nuts using built-in magazine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S29/00—Metal working
    • Y10S29/013—Method or apparatus with electric heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

A nut feeder head assembly of a projection welder is provided to prevent abnormal junction between a welding nut and a welding object. A nut feeder head assembly(100) of a projection welder comprises a feeding hose(206) in which welding nuts are transferred, a cylinder rod(12) transferring of the welding nuts, a head unit(104) connected to the feeding hose, and a plate type stopper(30) connected to the upper front side of a nut supply guide channel of the head unit and has a rear selection protrusion.

Description

프로젝션 용접기의 너트피더용 헤드어셈블리{HEAD ASSEMBLY FOR NUT FEEDER OF PROJECTION WELDER}HEAD ASSEMBLY FOR NUT FEEDER OF PROJECTION WELDER}

본 발명은 프로젝션 용접기의 너트피더용 헤드어셈블리에 관한 것으로 용접 너트가 항상 피용접물 위에 정방향으로 놓이도록 하여서 용접 너트와 피용접물 간의 접합불량률이 거의 발생하지 않도록 한 것이다.The present invention relates to a head feeder assembly for a nut feeder of a projection welder so that the weld nut is always placed in the forward direction on the welded object so that the defect rate between the weld nut and the welded object is hardly generated.

일반적으로, 차체 등의 패널(panel)에 각종 의장부품을 장착하기 위해서는 먼저 너트피더(nut feeder)를 통해 용접 너트(welding nut, projection nut)를 프로젝션 용접기의 피용접물(패널) 위로 공급하고 프로젝션 용접기가 상기 용접 너트와 피용접물을 용접하도록 한다. 그런 다음, 용접 너트가 부착된 패널을 자동화 생산라인으로 공급하고 상기 용접 너트에 볼트를 체결하는 방법으로써 다수 의장부품들을 패널에 용이하게 장착하였던 것이다.In general, in order to mount various design parts on a panel such as a vehicle body, a welding nut (projection nut) is first supplied to a projection welder (panel) through a nut feeder and then a projection welder. To weld the weld nut and the welded object. Then, a number of design parts were easily mounted on the panel by supplying a panel with a welding nut to an automated production line and fastening a bolt to the welding nut.

이처럼 프로젝션 용접기는 대개 일정 시간간격으로 용접 너트를 자동 공급하는 너트피더(너트공급기)와 한 조로 구성되는 바, 너트피더는 용접 너트를 정렬하 는 너트정렬기와, 작업자가 대어 놓은 피용접물의 용접 너트 정위치로 정확하게 용접 너트를 위치시켜주는 헤드어셈블리와, 상기 너트정렬기에서 정렬된 너트가 상기 헤드어셈블리로 이송되는 연결로인 피딩호스(feeding hose) 등으로 구성된다.As such, the projection welding machine is generally composed of a pair of nut feeders (nut feeders) that automatically supply the welding nut at a predetermined time interval, and the nut feeder is a nut sorter for aligning the welding nuts, and a welding nut of the welded object. And a head assembly for accurately positioning the welding nut in position, and a feeding hose, which is a connection path through which the nut aligned in the nut aligner is transferred to the head assembly.

이때, 용접 너트는 용접부분이 피용접물과 접하도록 공급되어야만 피용접물에 제대로 접합될 수가 있으나, 때때로 용접 너트가 뒤집히거나, 편심되거나, 또 좌우로 다소 회전된 채 용접될 때도 있었던 것이다. 그러면 용접 너트가 피용접물 상에 견고하게 붙어있지 못하여서 그 내구성 등에 문제가 발생하였었다.At this time, the welding nut can be properly bonded to the welded object only when the welded part is supplied to contact the welded object, but sometimes the weld nut is welded upside down, eccentrically, or rotated somewhat to the left or right. Then, the welding nut could not be firmly attached to the object to be welded, causing problems such as durability.

결국, 자체 등 패널에의 의장부품 장착 불량률이 상승되고 나아가 불량제품이 검출되지 못하고 그대로 제품화되어 나갈 경우 소비자들의 안전에 악영향을 미칠 수도 있었던 것이다.As a result, if the failure rate of the installation of the design parts on the panel, such as its own, rises, and if the defective product is not detected, it may be adversely affected to the safety of consumers.

본 발명의 목적은, 용접 너트의 규격에 상관없이 뒤집히거나, 편심되거나, 또 좌우로 다소 회전된 용접 너트는 헤드어셈블리로 투입되지 않도록 하여 용접 너트가 정방향으로만 피용접물에 공급되도록 한 프로젝션 용접기의 너트피더용 헤드어셈블리를 제공함에 있다.An object of the present invention is a projection welding machine in which a weld nut that is inverted, eccentric, or rotated somewhat to the left or right, irrespective of the size of the weld nut, is not fed into the head assembly so that the weld nut is supplied to the welded object only in the forward direction. To provide a head assembly for a nut feeder.

본 발명의 다른 목적은, 차체 등의 패널에 용접 너트의 접합불량률이 거의 발생하지 않도록 하고 각종 부품 부착의 견고성이 향상되도록 한 프로젝션 용접기의 너트피더용 헤드어셈블리를 제공함에 있다.It is another object of the present invention to provide a head assembly for a nut feeder of a projection welding machine in which a welding defect rate of a welding nut is hardly generated in a panel such as a vehicle body and the rigidity of attachment of various parts is improved.

본 발명은, 프로젝션 용접기의 너트피더용 헤드어셈블리에 있어서, 용접 너트(N)가 공급되는 피딩호스(206)에 용접 너트(N)를 이송하는 실린더로드(12)의 출몰공(24)을 갖는 헤드부(104)를 연결 구성하고, 상기 헤드부(104)의 너트공급안내로(26) 전면 상부에 후부 선별돌기(30a)가 형성된 판상의 스토퍼(30)를 체결 구성함을 특징으로 한다.In the head assembly for a nut feeder of a projection welding machine, the present invention has a hole (24) of the cylinder rod (12) for transferring the welding nut (N) to a feeding hose (206) to which the welding nut (N) is supplied. The head portion 104 is connected and configured to fasten the plate-shaped stopper 30 formed with the rear sorting projection 30a on the upper portion of the nut supply guide path 26 of the head 104.

본 발명은 용접 너트가 차체 등의 패널에 뒤집혀서 공급되는 것과 같이 불량 공급되는 용접 너트의 취출이 용이하여 용접 너트의 접합불량률이 현저히 감소되는 등의 효과를 갖는다.According to the present invention, the welding nut which is supplied poorly is easily taken out such that the welding nut is supplied upside down on a panel such as a vehicle body, and thus the joining failure rate of the welding nut is significantly reduced.

본 발명은, 프로젝션 용접기(500)의 가이드홀더(504)에 위치시킨 피용접물(차체 등의 패널)(A)에 용접 너트(N)가 뒤집히지 않고 공급(loading)될 수 있도록 너트피더(300)용 헤드어셈블리(100)를 구성함에 발명의 요지가 있다.The present invention, the nut feeder 300 so that the welding nut (N) can be loaded (turned) to the to-be-welded object (panel, such as a vehicle body) A located in the guide holder 504 of the projection welding machine 500. There is a subject matter of the present invention in constructing the head assembly 100).

이하 첨부한 도면을 참조하여 본 발명을 상세히 설명하도록 한다. 각 도면에서 동일한 참조부호는 동일한 기능을 갖는 구성요소를 나타낸다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote components having the same function.

도 1은 본 발명의 너트피더용 헤드어셈블리가 구성된 프로젝션 용접기의 일 예도이다. 그리고, 도 2는 본 발명의 너트피더용 헤드어셈블리 요부 사시도이고, 도 3은 도 2의 분해 사시도이며, 도 4는 도 2의 측단면 구성도 및 용접 너트의 공급 상태도이다.1 is an example of a projection welding machine is a head assembly for a nut feeder of the present invention. 2 is a perspective view of the head assembly for the nut feeder of the present invention, FIG. 3 is an exploded perspective view of FIG. 2, and FIG. 4 is a side cross-sectional view of FIG. 2 and a supply state diagram of a welding nut.

본 발명의 헤드어셈블리(100)는, 프로젝션 용접기(500)와 한 조(group)로 구성되는 너트피더(300)용으로서 그 기본 구성은 기존의 것과 유사하다. 하지만, 뒤집힌 용접 너트(Nu) 등을 선별하여서 이들이 프로젝션 용접기(500)에 놓인 피용접물(A) 위로 공급되는 것을 막아주는 스토퍼(stopper)(30)를 더 구성함에 특징이 있는 것이다.The head assembly 100 of the present invention is for a nut feeder 300 composed of a projection welder 500 and a group, the basic configuration of which is similar to the conventional one. However, it is characterized by further configuring a stopper (30) for selecting the inverted welding nut (Nu) and the like to prevent them from being supplied over the welded object (A) placed in the projection welding machine (500).

더욱 상세히는, 본 발명의 헤드어셈블리(100)는, 도 1에 도시한 바와 같이, 너트정렬기(200)와 연결된 피딩호스(206)의 타측 단부와 연결된 구성부로서, 그 구성을 배출부(escapment)(102)와 헤드부(head)(104)로 대분할 수 있다.More specifically, the head assembly 100 of the present invention, as shown in Figure 1, is a component connected to the other end of the feeding hose 206 connected to the nut aligner 200, the configuration of the discharge portion ( It can be divided into an escapment 102 and a head 104.

상기 헤드어셈블리(100)의 배출부(102)는, 도 2 내지 도 3에 도시한 바와 같이, 실린더(cylinder)(10)로 구성되고 그 내부 피스톤의 왕복 운동으로 실린더로드(12)가 전진 및 후진하여서 헤드부(104)의 너트공급안내로(26)로 이동된 용접 너트(N)를 프로젝션 용접기(500)의 가이드홀더부(504)까지 이송하여 주도록 구성된다.The discharge part 102 of the head assembly 100 is composed of a cylinder (10), as shown in Figures 2 to 3, the cylinder rod 12 is moved forward and forward by the reciprocating motion of the inner piston It is configured to transfer the welding nut (N) moved back to the nut supply guide path 26 of the head portion 104 to the guide holder portion 504 of the projection welding machine 500.

또, 헤드어셈블리(100)의 헤드부(104)는, 상기 배출부(102)의 선단과 직교 연결되는 바, 헤드부(104)의 하우징(20) 상단부에는 피딩호스(206)가 직접적으로 연결되어 있고 하우징(20) 내부에는 너트공급안내로(26)가 구성된다. 또, 너트공급안내로(26)의 하부에는 상기 실린더로드(12)의 출몰공(24a)이 하우징(20) 개폐 기(22)의 출몰공(25)과 일직선상에 위치하도록 구성된다.In addition, the head part 104 of the head assembly 100 is orthogonally connected to the distal end of the discharge part 102, and the feeding hose 206 is directly connected to the upper end of the housing 20 of the head part 104. The inside of the housing 20 is a nut supply guide (26) is configured. In addition, the lower part of the nut supply guide 26 is configured such that the recessed hole 24a of the cylinder rod 12 is located in line with the recessed hole 25 of the switch 22 of the housing 20.

특히, 상기 헤드부(104)의 하우징(20) 내 너트공급안내로(26)의 전면에는 덮개(20a)가 형성되는데, 너트공급안내로(26)의 최상단 전면에는 덮개(20a) 대신 본 발명의 스토퍼(30)를 체결 구성하는 것이다.Particularly, a cover 20a is formed on the front surface of the nut supply guide path 26 in the housing 20 of the head part 104, and the present invention instead of the cover 20a on the uppermost front surface of the nut supply guide path 26. The stopper 30 of the fastening configuration.

상기 스토퍼(30)는, 기본적으로 판상으로 그 후부 가운데에 형성시킨 선별돌기(30a)가 너트공급안내로(26)를 향하도록 구성함으로써, 너트공급안내로(26)로 공급된 뒤집힌 용접 너트(Nu)가 상기 선별돌기(30a)에 가로막혀 도 4에서처럼 너트공급안내로(26)로 진입조차 할 수 없도록 구성한다.The stopper 30 is configured such that the sorting protrusion 30a formed at the center of the rear portion of the stopper is directed toward the nut supply guide path 26, thereby providing an inverted welding nut supplied to the nut supply guide path 26. Nu) is blocked by the sorting projection (30a) is configured to not even enter the nut supply guide 26 as shown in FIG.

이때, 상기 스토퍼(30)의 선별돌기(30a)는, 그 형태에 제한은 없으나 그 돌출길이를 용접 너트(N)의 용접부위 길이 이내로 형성하여야만 정방향으로 공급된 용접 너트(N)는 너트공급안내로(26)로 무사히 진입할 수 있으므로 바람직하다. 따라서, 용접 너트(N)의 규격별로 상기 선별돌기(30a) 돌출길이를 달리 구성하는 것이 모범적이나 짧은 돌출길이의 선별돌기(30a)로도 큰 규격의 뒤집힌 용접 너트(Nu)의 선별은 가능하다.At this time, the sorting protrusion 30a of the stopper 30 is not limited in shape, but the protruding length should be formed within the welding part length of the welding nut N so that the welding nut N supplied in the forward direction is the nut supply guide. It is preferable to enter the furnace 26 safely. Therefore, it is exemplary to configure the different projection length of the sorting protrusion 30a according to the specifications of the welding nut N, but the sorting of the inverted weld nut Nu having a large size is possible even with the sorting projection 30a having a short projection length.

또, 상기 스토퍼(30)와 덮개(20a)는 도 3에서처럼 각각 별도로 구성하여서 하우징(20)에 볼트 체결 또는 용접 등으로 결합하여 일체화 구성하는 것이, 선별돌기(30a)가 닳아 소진되었을 때 스토퍼(30)만 교체할 수 있어 사용면 및 경제면에서 효율적이다. 하지만, 소재(素材) 등에 따라서 상기 스토퍼(30)와 덮개(20a)를 일체로 구성하거나, 또 스토퍼(30)와 덮개(20a)와 하우징(20)을 모두 일체로 구성할 수도 있다.In addition, the stopper 30 and the cover 20a are separately configured as shown in FIG. 3 to be integrally formed by bolting or welding to the housing 20, and the stopper 30 is worn out when the selection protrusion 30a is worn out. Only replacement 30) is efficient in terms of use and economy. However, the stopper 30 and the cover 20a may be integrally formed according to the raw material, or the stopper 30, the cover 20a, and the housing 20 may be integrally formed.

그리고, 본 발명 헤드어셈블리(100)의 헤드부(104)의 너트공급안내로(26)는, 도 3 내지 도 4에서와 같이, 용접 너트(N)의 형태에 맞게 양 측면을 단차(段差)지게 형성하여서 용접 너트(N)가 편심되지 않고 정방향의 상태로 원활하게 출몰공(22a)(24)까지 이동될 수 있도록 구성한다.Then, the nut supply guide path 26 of the head portion 104 of the head assembly 100 of the present invention, as shown in Figures 3 to 4, stepped on both sides in accordance with the shape of the welding nut (N). Formed to form a fork so that the welding nut (N) can be smoothly moved to the haunting holes (22a, 24) in the state of the forward direction without being eccentric.

도 5a는 본 발명의 헤드어셈블리 헤드부에 정방향 용접 너트가 공급된 상태를 도시한 도면이고, 도 5b는 본 발명의 헤드어셈블리 헤드부에 뒤집힌 용접 너트가 공급된 상태를 도시한 도면이며, 도 6은 본 발명의 헤드어셈블리를 통하여 용접 너트가 프로젝션 용접기에 최종 공급되는 상태를 도시한 도면이다.5A is a view illustrating a state in which the forward welding nut is supplied to the head assembly head unit of the present invention, and FIG. 5B is a view illustrating a state in which the welding nut inverted is supplied to the head assembly head unit of the present invention. Is a view showing a state in which the welding nut is finally supplied to the projection welder through the head assembly of the present invention.

지금까지 설명한 본 발명의 너트피더용 헤드어셈블리(100)를 통하여서 용접 너트(N)가 프로젝션 용접기(500)로 공급되는 상태를 설명한다.The state in which the welding nut N is supplied to the projection welding machine 500 through the nut feeder head assembly 100 described above will be described.

너트피더(300)의 너트정렬기(200) 호퍼(202)로 투입된 용접 너트(N)들은 볼(bowl)(204)에서 그 엉킴이 풀리고 용접 부위가 위를 향하도록 자동정렬된 후 일정 시간 간격으로 하나하나씩 피딩호스(206)를 통해 헤드어셈블리(100)의 헤드부(104)로 이송된다(도 1).The welding nuts (N) introduced into the hopper 202 of the nut sorter 200 of the nut feeder 300 are fixed for a certain time interval after the entanglement is loosened in the bowl 204 and the welding area is automatically aligned. One by one through the feeding hose 206 is transferred to the head portion 104 of the head assembly 100 (Fig. 1).

헤드어셈블리(100)의 헤드부(104)로 정방향 공급된 용접 너트(N)는, 도 5a에서처럼, 너트공급안내로(26) 내를 중력에 의한 자연낙하방식으로 출몰공(22a)(24)까지 이동되되, 자성(magnetism) 및 스토퍼(30)의 선별돌기(30a)와 너트공급안내로(26) 측면 단부의 도움으로 더욱 원활히 하강하게 된다. 그 직후 배출부(102)의 실린더(10)가 팽창하여 실린더로드(12)가 하우징(20) 출몰공(24)으로 진출하고 너트공급안내로(26) 하단의 용접 너트(N)를 걸어채서 개폐기(22)의 출몰공(22a)으로 배출시켜 도 6에서와 같이 프로젝션 용접기(500)의 가이드홀더부(504) 상의 피용접물(A)까지 이송시킨다. 연속하여, 실린더로드(12)가 상기 실린더(10) 속으로 압축되어 들어가고 프로젝션 용접기(500)의 용접건(502)이 피용접물(A)과 용접 너트(N)로 하강하여 이들을 접합시키는 것이다.Welding nut (N) supplied to the head portion 104 of the head assembly 100 in the forward direction, as shown in Fig. 5a, the hole in the nut supply guide 26 in the natural dropping method by gravity (22a, 24) Is moved up to, but with the help of magnetism (magnetism) and the stopper (30) of the sorting projection (30a) and the nut supply guide (26) side end is more smoothly lowered. Immediately thereafter, the cylinder 10 of the discharge part 102 expands, and the cylinder rod 12 enters the housing 20 and the recess hole 24, and hangs the welding nut N at the lower end of the nut supply guide 26. It is discharged to the inlet hole 22a of the switch 22, and it transfers to the to-be-welded object A on the guide holder part 504 of the projection welding machine 500 as shown in FIG. Subsequently, the cylinder rod 12 is compressed into the cylinder 10 and the welding gun 502 of the projection welding machine 500 descends to the weld object A and the welding nut N to join them.

반면, 헤드에세이(100)의 헤드부(104)로 뒤집힌 용접 너트(Nu)가 공급되면, 도 5b에서처럼, 뒤집힌 용접 너트(Nu)의 용접부위 반대편이 스토퍼(30)의 선별돌기(30a)에 가로막혀 너트공급안내로(26)로 진입조차 할 수 없게 된다. 이러한 상황이 발생하면 작업자가 잠시 기기의 작동을 멈추고 뒤집힌 용접 너트(Nu)를 안전하게 빼낸 후에 기기를 재작동시키고 계속하여 작업하면 되는 것이다.On the other hand, if the inverted welding nut Nu is supplied to the head portion 104 of the head essay 100, as shown in FIG. 5B, the opposite side of the welded portion of the inverted welding nut Nu is applied to the sorting protrusion 30a of the stopper 30. It may be blocked and may not even enter the nut supply guide 26. If this happens, the operator should stop the machine for a while, safely remove the inverted weld nut (Nu), restart the machine and continue working.

따라서, 본 발명의 스토퍼(30)가 구성된 헤드에세이(100)를 통하여서 불량 용접 너트(N)의 취출이 가능하고 용접 너트(N)가 뒤집히지 않고, 편심되지 않으며, 좌우로 회전되지도 않아 항상 정방향으로만 공급될 수 있는 것이다. Accordingly, the defective welding nut N can be taken out through the head essay 100 in which the stopper 30 of the present invention is configured, and the welding nut N is not inverted, is not eccentric, and is not rotated from side to side. It can only be supplied in the forward direction.

미설명부호 ‘(28)’은 영구자석이다.Unexplained symbol '(28)' is a permanent magnet.

본 발명은 자동차, 선박, 비행기 등 패널에 각종 부품을 장착하기 위한 용접 너트의 정방향 공급을 위한 각종 장치에 널리 이용될 수 있다.The present invention can be widely used in various apparatuses for the forward supply of welding nuts for mounting various components on panels such as automobiles, ships and airplanes.

도 1은 본 발명의 너트피더용 헤드어셈블리가 구성된 프로젝션 용접기의 일 예도.1 is an example of a projection welding machine is configured a head assembly for a nut feeder of the present invention.

도 2는 본 발명의 너트피더용 헤드어셈블리 요부 사시도.Figure 2 is a perspective view of the head assembly main nut feeder of the present invention.

도 3은 도 2의 분해 사시도.3 is an exploded perspective view of FIG. 2;

도 4는 도 2의 측단면 구성도 및 용접 너트의 공급 상태도.Figure 4 is a side cross-sectional view of Figure 2 and the supply state of the welding nut.

도 5a는 본 발명의 헤드어셈블리 헤드부에 정방향 용접 너트가 공급된 상태를 도시한 도면.Figure 5a is a view showing a state in which the forward welding nut is supplied to the head assembly head portion of the present invention.

도 5b는 본 발명의 헤드어셈블리 헤드부에 뒤집힌 용접 너트가 공급된 상태를 도시한 도면.Figure 5b is a view showing a state in which the welding nut is turned over to the head assembly head portion of the present invention.

도 6은 본 발명의 헤드어셈블리를 통하여 용접 너트가 프로젝션 용접기에 최종 공급되는 상태를 도시한 도면.6 is a view showing a state in which the welding nut is finally supplied to the projection welder through the head assembly of the present invention.

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

(10) ― 실린더 (12) ― 실린더로드(10)-cylinder (12)-cylinder rod

(14)(16a) ― 출몰공 (20) ― 하우징(14) (16a) -Hole hole 20-Housing

(20a) ― 덮개 (22) ― 개폐기(20a)-cover (22)-switchgear

(22a)(24) ― 출몰공 (26) ― 너트공급안내로(22a) (24)-Inlet hole (26)-Nut supply guide

(30) ― 스토퍼 (30a) ― 선별돌기(30)-stopper (30a)-sorting protrusion

(100) ― 헤드어셈블리 (102) ― 배출부(100)-Head assembly (102)-Outlet

(104) ― 헤드부 (200) ― 너트정렬기(104)-Head (200)-Nut aligner

(206) ― 피딩호스 (300) ― 너트피더(206)-Feeding Hose (300)-Nut Feeder

(500) ― 프로젝션 용접기 (N) ― 용접 너트500-projection welding machine (N)-welding nut

Claims (2)

프로젝션 용접기의 너트피더용 헤드어셈블리에 있어서,In the head assembly for the nut feeder of the projection welding machine, 용접 너트(N)가 공급되는 피딩호스(206)에 용접 너트(N)를 이송하는 실린더로드(12)의 출몰공(24)을 갖는 헤드부(104)를 연결 구성하고, 상기 헤드부(104)의 너트공급안내로(26) 전면 상부에 후부 선별돌기(30a)가 형성된 판상의 스토퍼(30)를 체결 구성함을 특징으로 하는 프로젝션 용접기의 너트피더용 헤드어셈블리.The head part 104 which has the grooving hole 24 of the cylinder rod 12 which transfers the welding nut N to the feeding hose 206 to which the welding nut N is supplied is connected, and comprises the said head part 104 The nut feed head assembly of the projection welder characterized in that the plate-shaped stopper (30) having a rear sorting projection (30a) formed on the front upper portion of the nut supply guide passage (26). 제 1항에 있어서,The method of claim 1, 상기 너트공급안내로(26)는 양 측면을 단차지게 형성함을 특징으로 하는 프로젝션 용접기의 너트피더용 헤드어셈블리.The nut supply guide (26) is a head assembly for a nut feeder of a projection welding machine, characterized in that formed on both sides stepped.
KR1020070103584A 2007-10-15 2007-10-15 Head assembly for nut feeder of projection welder KR20090038208A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101301673B1 (en) * 2013-05-06 2013-08-29 주식회사 오토다임 Jig device for detecting feed position error of weld nut
KR101407075B1 (en) * 2014-02-04 2014-06-12 (주)일화테크 Apparatus for detecting welding fault of welding-nut
CN104722939A (en) * 2015-03-10 2015-06-24 佛山市顺德区杰峰工业自动化有限公司 Automatic nut welding machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101301673B1 (en) * 2013-05-06 2013-08-29 주식회사 오토다임 Jig device for detecting feed position error of weld nut
KR101407075B1 (en) * 2014-02-04 2014-06-12 (주)일화테크 Apparatus for detecting welding fault of welding-nut
CN104722939A (en) * 2015-03-10 2015-06-24 佛山市顺德区杰峰工业自动化有限公司 Automatic nut welding machine

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