KR20010019231A - twist vibration generating apparatus of ultrasonic welding machine - Google Patents

twist vibration generating apparatus of ultrasonic welding machine Download PDF

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Publication number
KR20010019231A
KR20010019231A KR1019990035533A KR19990035533A KR20010019231A KR 20010019231 A KR20010019231 A KR 20010019231A KR 1019990035533 A KR1019990035533 A KR 1019990035533A KR 19990035533 A KR19990035533 A KR 19990035533A KR 20010019231 A KR20010019231 A KR 20010019231A
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South Korea
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ultrasonic
ultrasonic horn
welding machine
vibration generating
torsion
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KR1019990035533A
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Korean (ko)
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KR100330668B1 (en
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이천웅
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이천웅
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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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • B23K20/106—Features related to sonotrodes
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

PURPOSE: A torsion vibration generating device for an ultrasonic welding machine is provided to transmit vibration generated from ultrasonic vibrators to an object via the torsion of an ultrasonic horn for increasing the efficiency of the vibration energy and preventing mis-positioning of the object, thereby carrying out more precise welding. CONSTITUTION: A torsion vibration generating device for an ultrasonic welding machine includes a plurality of fan-shaped surface parts(32,34,36) formed by an equal angle on an outer periphery of an ultrasonic horn(30) forming a right angle with respect to a center line(C1) of the ultrasonic horn, and a plurality of ultrasonic vibrators(PZ1-PZ3) mounted on inner surfaces(32a,34a,36a) of the surface parts in an equal direction for applying vibration in a torsion direction(T) of the ultrasonic horn.

Description

초음파 용접기의 비틀림진동 발생장치{twist vibration generating apparatus of ultrasonic welding machine}Twist vibration generating apparatus of ultrasonic welding machine

본 발명은 초음파 용접기의 비틀림진동 발생장치에 관한 것으로, 더욱 상세하게는 피용접물에 비틀림방향으로 진동력을 가할 수 있도록 구성하여 피용접물을 가압하는 방향으로 작용되는 진동을 줄임으로써 보다 효율적으로 마찰열을 발생시킬 수 있도록 한 초음파 용접기의 비틀림진동 발생장치에 관한 것이다.The present invention relates to a torsional vibration generating device of an ultrasonic welder, and more particularly, to apply vibration force in the torsional direction to the welded object, thereby reducing friction acting in the direction of pressing the welded object more efficiently. The present invention relates to a torsional vibration generating device of an ultrasonic welding machine.

일반적으로 초음파 용접기는 초음파 진동자를 이용하여 용접하려는 피용접물의 접합면에 마찰열을 발생시켜 용접하는 것으로, 이종 금속 또는 비금속을 효과적으로 용접할 수 있으며, 별도로 만들어진 플라스틱 성형품을 서로 용접하는 작업, 도선과 단자를 용접하는 작업 등 마찰열에 의해 용접할 수 있는 용접작업에 광범위하게 사용되고 있다.In general, an ultrasonic welding machine is an ultrasonic vibrator that generates frictional heat on the joint surface of the welded object to be welded, and can effectively weld dissimilar metals or non-metals. It is widely used in welding operations that can be welded by frictional heat, such as welding.

이러한 종래의 초음파 용접기는 첨부도면 도1에 도시된 바와 같이 초음파 진동자(20)가 초음파 혼(22)의 종방향(V1)과 횡방향(H1)으로 진동되도록 설치되어 있었기 때문에 초음파 진동자(20)로부터 발생되는 종방향(V1) 진동은 횡방향(H1) 진동에 대해 약 2/3 가량 되기 때문에 1/3 가량 되는 횡방향(H1) 진동만이 피용접물 (10)(12)간의 마찰열 발생에 도움을 줄 뿐 종방향(V1) 진동은 피용접물(10)(12)을 가압하는 힘으로 소멸되어 버리기 때문에 효율성이 떨어지게 되는 문제점을 가지고 있었다.Since the conventional ultrasonic welding machine is installed so that the ultrasonic vibrator 20 vibrates in the longitudinal direction V1 and the transverse direction H1 of the ultrasonic horn 22, as shown in FIG. Since the longitudinal (V1) vibrations generated from about 2/3 of the lateral (H1) vibrations are only about one-third, the lateral (H1) vibrations of about one-third help to generate friction heat between the welded objects (10) and (12). Only give the longitudinal (V1) vibration has had a problem that the efficiency is lowered because it is extinguished by the force to press the object (10) (12).

그리고, 초음파 진동자(20)로부터 발생되는 종방향(V1) 진동 때문에 용접작업중에 피용접물(10)(12)이 상하방향으로 심하게 진동하기 때문에 피용접물(10) (12)의 접합면(10a)(12a)이 어긋나게 되어 용접후 접합위치가 어긋나게 되는 문제점을 가지고 있었다.In addition, the joint surface 10a of the welded object 10 and 12 because the welded object 10 and 12 vibrates violently up and down during the welding operation due to the longitudinal direction V1 vibration generated from the ultrasonic vibrator 20. There was a problem that (12a) was shifted and the joining position was shifted after welding.

본 발명은 상기와 같은 문제점을 해결하기 위하여 이루어진 것으로, 그 목적은 초음파 진동자로부터 발생되는 진동에너지를 피용접물간에 발생되는 마찰열로 보다 효율적으로 변환시킬 수 있는 초음파 용접기의 비틀림진동 발생장치를 제공함에 있다.The present invention has been made to solve the above problems, and an object thereof is to provide a torsional vibration generating device of an ultrasonic welder, which can more efficiently convert the vibration energy generated from the ultrasonic vibrator into frictional heat generated between the welded objects. .

이러한 본 발명의 목적을 달성하기 위하여 초음파 혼의 중심선에 대해 직각을 이루는 부채꼴 모양으로 된 복수의 면취부를 이 초음파 혼에 등각도로 형성하고, 상기 초음파 혼의 비틀림방향으로 진동을 가하는 복수의 초음파 진동자를 상기 면취부의 내측면에 각각 동일방향으로 이루도록 설치하여 초음파 용접기의 비틀림진동 발생장치가 제공된다.In order to achieve the object of the present invention, the plurality of ultrasonic chamfers having a fan-shaped chamfer perpendicular to the centerline of the ultrasonic horn are formed at an isometric angle to the ultrasonic horn, and the plurality of ultrasonic vibrators for applying vibration in the torsion direction of the ultrasonic horn to the surface The torsional vibration generating device of the ultrasonic welding machine is provided by installing in the same direction on the inner surface of the mounting portion.

도 1 은 종래 초음파 용접기의 구조를 개략적으로 보이는 정면도1 is a front view schematically showing the structure of a conventional ultrasonic welding machine

도 2 는 본 발명에 따른 초음파 용접기의 비틀림진동 발생장치를 보이는 평면도Figure 2 is a plan view showing a torsional vibration generating device of the ultrasonic welding machine according to the present invention

도 3 은 본 발명에 따른 초음파 용접기의 비틀림진동 발생장치를 보이는 측면도Figure 3 is a side view showing a torsional vibration generating device of the ultrasonic welding machine according to the present invention

도 4 는 본 발명에 따른 초음파 용접기의 비틀림진동 발생장치를 보이는 사시도Figure 4 is a perspective view showing a torsional vibration generating device of the ultrasonic welding machine according to the present invention

* 도면의 주요부분에 대한 부호설명 ** Explanation of Signs of Major Parts of Drawings *

30 : 초음파 혼 C1 : 중심선30: ultrasonic horn C1: centerline

32,34,36 : 면취부 T : 비틀림방향32,34,36: Chamfer T: Torsion direction

PZ1,PZ2,PZ3 : 초음파 진동자 32a,34a,35a : 내측면PZ1, PZ2, PZ3: ultrasonic vibrators 32a, 34a, 35a: inner side

이하 본 발명에 따른 실시예를 첨부도면을 참조하여 상세히 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도2 내지 도4에 도시된 바와 같이 초음파 혼(30)의 중심선(C1)에 대해 직각을 이루는 부채꼴 모양으로 된 복수의 면취부(32)(34)(36)를 이 초음파 혼(30)에 등각도로 형성하고, 상기 초음파 혼(30)의 비틀림방향(T)으로 진동을 가하는 복수의 초음파 진동자(PZ1)(PZ2)(PZ3)를 상기 면취부(32)(34)(35)의 내측면 (32a)(34a)(35a)에 각각 동일방향으로 이루도록 설치하여 구성하였다.As shown in FIGS. 2 to 4, a plurality of flat chamfers 32, 34, and 36 in a fan shape perpendicular to the centerline C1 of the ultrasonic horn 30 may be provided to the ultrasonic horn 30. A plurality of ultrasonic vibrators (PZ1) (PZ2) (PZ3) formed at an isometric angle and applying vibration in the torsion direction (T) of the ultrasonic horn (30) of the chamfer (32) (34) (35) The inner surfaces 32a, 34a, 35a were formed so as to be formed in the same direction, respectively.

상기 면취부(32)(34)(35)는 상기 초음파 혼(30)의 상단 외주에 위치되도록 형성할 수 있다.The chamfered portions 32, 34 and 35 may be formed to be positioned on the outer circumference of the upper end of the ultrasonic horn 30.

도면중 미설명 부호 50,52는 피용접물을 나타낸 것이다.Reference numerals 50 and 52 in the drawings indicate a welded object.

이하 본 발명에 따른 작용을 첨부된 도면에 의거하여 상세히 설명하면 다음과 같다.Hereinafter, the operation according to the present invention will be described in detail with reference to the accompanying drawings.

첨부도면 도2에 도시된 바와 같이 초음파 진동자(PZ1)(PZ2)(PZ3)에 구동전류가 흐르게 되면, 도면중 화살표 V2,V3,V4 방향으로 동시에 진동되는데, 이때 초음파 혼(30)에 형성되어 있는 면취부(32)(34)(36)의 내측면(32a)(34a)(36a)이 이 초음파 혼(30)의 중심을 기점으로 방사모양으로 형성되고, 초음파 혼(30)의 중심(C2)에 대해서는 직각을 이루고 있으므로, 이 초음파 혼(30)이 비틀림방향(T)으로 힘을 받으면서 진동하게 된다.As shown in FIG. 2, when a driving current flows through the ultrasonic vibrators PZ1, PZ2, and PZ3, the vibrations are simultaneously vibrated in the directions of arrows V2, V3, and V4 in the drawing, in which an ultrasonic horn 30 is formed. The inner surfaces 32a, 34a, 36a of the chamfered portions 32, 34, 36 are radially formed from the center of the ultrasonic horn 30, and the center of the ultrasonic horn 30 ( Since it forms a right angle with respect to C2), this ultrasonic horn 30 vibrates under the force in the torsional direction T. As shown in FIG.

위와 같은 과정에서 초음파 혼(30)의 끝에 피용접물(50)(52)가 있는 경우 이 초음파 혼(30)으로부터 발생되는 비틀림방향(T)의 진동에 의해 피용접물(50)(52)의 접합면(50a)(52a)에서 마찰열이 발생되면서 용융되어 용접된다.In the above process, when there are welded objects 50 and 52 at the end of the ultrasonic horn 30, the welded objects 50 and 52 are joined by the torsional direction T generated from the ultrasonic horn 30. The frictional heat is generated on the surfaces 50a and 52a to be melted and welded.

이상에서 설명한 바와 같은 본 발명은 초음파 진동자로부터 발생되는 진동을 초음파 혼을 통해서 비틀림형태로 피용접물에 전달하도록 구성되어 있기 때문에 진동에너지의 효율을 크게 높일 수 있는 효과가 있으며, 비교적 길게 되어 있는 초음파 혼의 비틀림에 의해 진동력을 피용접물에 전달하도록 구성되어 있기 때문에 진동에 의한 피용접물의 위치 어긋남을 방지함으로써 보다 정밀한 용접작이 가능하게 되는 효과가 있다.As described above, the present invention is configured to transmit the vibration generated from the ultrasonic vibrator to the to-be-welded object in a torsional form through the ultrasonic horn, thereby greatly increasing the efficiency of the vibration energy, and the relatively long ultrasonic horn. Since the vibration force is transmitted to the to-be-welded object by torsion, there is an effect that a more precise welding operation is attained by preventing the position shift of the to-be-welded object by a vibration.

Claims (2)

초음파 혼(30)의 중심선(C1)에 대해 직각을 이루는 부채꼴 모양으로 된 복수의 면취부(32)(34)(36)를 이 초음파 혼(30)에 등각도로 형성하고, 상기 초음파 혼(30)의 비틀림방향(T)으로 진동을 가하는 복수의 초음파 진동자(PZ1)(PZ2)(PZ3)를 상기 면취부(32)(34)(35)의 내측면(32a)(34a)(35a)에 각각 동일방향을 이루도록 설치하여 구성한 것을 특징으로 하는 초음파 용접기의 비틀림진동 발생장치.A plurality of chamfers 32, 34, 36 in a fan shape perpendicular to the center line C1 of the ultrasonic horn 30 are formed in the ultrasonic horn 30 at an isometric angle, and the ultrasonic horn 30 A plurality of ultrasonic vibrators (PZ1) (PZ2) (PZ3) for applying vibration in the torsion direction (T) of the () to the inner surface (32a) (34a) (35a) of the chamfer (32) (34) (35) Torsional vibration generating device of the ultrasonic welding machine, characterized in that configured to each constitute the same direction. 제 1 항에 있어서, 상기 면취부(32)(34)(35)는 상기 초음파 혼(30)의 외주에 형성된 것을 특징으로 하는 초음파 용접기의 비틀림진동 발생장치.The torsional vibration generating device of claim 1, wherein the chamfering portions (32, 34) are formed on the outer circumference of the ultrasonic horn (30).
KR1019990035533A 1999-08-26 1999-08-26 a twist vibration generating apparatus of ultrasonic welding machine KR100330668B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015109882A1 (en) 2015-06-19 2016-12-22 Technische Universität München joining tool

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8902562U1 (en) * 1989-03-03 1990-07-05 Robert Bosch Gmbh, 7000 Stuttgart Ultrasonic welding device
DE4344186C1 (en) * 1993-12-23 1995-01-26 Walter Martin Ultraschalltech Ultrasonic welding apparatus
KR0129952B1 (en) * 1994-11-09 1998-04-17 김광호 Supersonic vibrator
JPH08309562A (en) * 1995-05-15 1996-11-26 Nippondenso Co Ltd Ultrasonic tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015109882A1 (en) 2015-06-19 2016-12-22 Technische Universität München joining tool

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