KR950005271B1 - Automatic apparatus for ic-tube alignment and pin insertion - Google Patents

Automatic apparatus for ic-tube alignment and pin insertion Download PDF

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KR950005271B1
KR950005271B1 KR1019920013620A KR920013620A KR950005271B1 KR 950005271 B1 KR950005271 B1 KR 950005271B1 KR 1019920013620 A KR1019920013620 A KR 1019920013620A KR 920013620 A KR920013620 A KR 920013620A KR 950005271 B1 KR950005271 B1 KR 950005271B1
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tube
cylinder
alignment
motor
fixing
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KR1019920013620A
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KR940002985A (en
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김금희
권재현
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현대전자산업주식회사
김주용
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/6773Conveying cassettes, containers or carriers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H01L21/677Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
    • H01L21/67703Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
    • H01L21/67706Mechanical details, e.g. roller, belt

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)
  • Testing Of Individual Semiconductor Devices (AREA)
  • Supply And Installment Of Electrical Components (AREA)

Abstract

The apparatus includes a tube loading box (2) having a tube tossing cylinder (1) at a bottom sealed, a tube arranging means (9) having a tube transfer motor (5) and positioning sensors (23,24) for driving a transfer stock (4) to transfer tubes to a tube arrangement position, an air chuck (6), a cylinder (7), and a motor, an IC deposit means (12) having cylinders (10,11,20), a positioning sensor (26), and a sensor (25) for detecting the finishing of IC deposit, a tube transfer means (15) having a positioning sensor (23) and a cylinder (13), and a pin inserting means (22) having a vacuum pad (16), and cylinders (17,18,19,21), thereby arranging and inserting the tubes automatically.

Description

아이시(IC) 튜브 정렬 및 핀 삽입 자동화 장치IC Tube Alignment and Pin Insertion Automation

제1도는 본 발명에 의한 IC튜브 정렬 및 핀 삽입 자동화 장치의 구조를 보인 평면도.Figure 1 is a plan view showing the structure of the IC tube alignment and pin insertion automation apparatus according to the present invention.

제2도는 본 발명에 의한 IC튜브 정렬 및 핀 삽입 자동화 장치의 구조를 보인 측면도.Figure 2 is a side view showing the structure of the IC tube alignment and pin insertion automation apparatus according to the present invention.

제3도는 본 발명에 의한 IC튜브 정렬 및 핀 삽입 자동화 장치의 전기적 구성을 보인 회로도.Figure 3 is a circuit diagram showing the electrical configuration of the IC tube alignment and pin insertion automation apparatus according to the present invention.

제4도는 본 발명에 의한 IC튜브 정렬 및 핀 삽입 자동화 장치의 작동을 보인 플로우 챠트.Figure 4 is a flow chart showing the operation of the automated IC tube alignment and pin insertion apparatus according to the present invention.

제5도는 본 발명이 적용되는 IC튜브를 보인 사시도.5 is a perspective view showing an IC tube to which the present invention is applied.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

1 : 튜브 토스용 실린더 2 : 튜브 적재 박스1: Cylinder for tube toss 2: Tube loading box

3 : 튜브 4 : 이송 스톡3: tube 4: feed stock

5 : 튜브 이송용 모우터 6 : 에어척5: tube transfer motor 6: air chuck

7 : 튜브 정렬 전후진용 실린더 8 : 튜브 정렬용 모우터7: cylinder for forward and backward tube alignment 8: motor for tube alignment

9 : 튜브 정렬 수단 10 : 튜브 고정용 전후진 실린더9: tube alignment means 10: forward and backward cylinder for fixing the tube

11 : 튜브 고정용 상하 실린더 12 : IC투입 수단11: Up and down cylinder for fixing the tube 12: IC injection means

13 : 튜브 이송용 실린더 14 : 튜브 상하 이송용 실린더13: Cylinder for conveying tube 14: Cylinder for conveying tube up and down

15 : 튜브 이송수단 16 : 진공 패드15 tube transfer means 16 vacuum pad

17 : 진공 헤드 상하 이동 실린더 18 : 진공헤드 전후진 실린더17: vacuum head up and down cylinder 18: vacuum head back and forth cylinder

19 : 튜브 고정용 전후진 실린더 20 : 튜브 반전 실린더19: forward and backward cylinder for fixing the tube 20: tube inverting cylinder

21 : 튜브 이송용 실린더 22 : 핀 삽입 수단21: cylinder for conveying the tube 22: pin insertion means

23,24,26,27,29 : 위치 센서 28 : 수납 박스23, 24, 26, 27, 29: position sensor 28: storage box

30 : 핀 공급기 25 : IC투입 완료센서30: pin supply 25: IC input sensor

31 : 핀31: pin

본 발명은 조립과정에서 검사완료된 IC를 보관, 운반하기 위하여 사용하는 IC 튜브를 정렬하고 IC를 투입한다음 단부에 핀을 투입시키기 위한 일련의 동작이 자동으로 실시될 수 있도록 하는 IC튜브 정렬 및 핀 삽입 자동화 장치에 관한 것이다.The present invention aligns the IC tube used to store and transport the IC that has been inspected during the assembly process, and inserts the IC, and then the IC tube alignment and the pins can be automatically performed to perform a series of operations for inserting the pins at the ends. It relates to an insertion automation device.

일반적으로 반도체 조립 과정에서 검사완료된 IC는 튜브에 넣어 보관 및 운반하게 되는 것이며 이를 위하여 먼저 적재부에 튜브를 한개씩 넣어 정렬시킨 다음 스토퍼에 의하여 한개씩 낙하시키고, 낙하된 튜브마다 IC를 튜입하여 튜입 완료된 다음 튜브 퓨셔로 적재부에서 한개씩 낙하시키게 되는 것이다.In general, the IC that has been inspected during the semiconductor assembly process is stored and transported in a tube. For this purpose, the tubes are placed one by one in the stacker and then aligned one by one with a stopper, and the IC is inserted into each dropped tube. The tube pusher will drop one by one from the stack.

따라서 이러한 방식의 튜브 정렬 및 핀 삽입 방식에 의하면 적재부에 튜브를 하나씩 일일이 넣어 정렬하는데 많은 시간을 소모하게 되어 생산성의 저하를 초래하게 되는 문제점이 있으며, 적재된 튜브를 한개씩 분리하여 낙하시킬때 양측의 튜브가 스토퍼 끝단에 걸리거나 낙하시 튜브가 기울어지게 되는 것이어서, 스토퍼의 튜브의 분리 낙하동작이 어렵게 되며, 퓨셔 동작으로 튜브가 슬라이딩될때 균형이 맞지 않아 적재부 양단끝에 걸이거나 IC가 튜브에서 이탈되는 경우가 있어서 튜브퓨셔의 튜브의 배출동작이 부정확하게 됨에 따라 고장율이 높아 작동의 신뢰도가 낮으며, 핀을 일일이 튜브에 끼우는 과정에서 생산성을 더욱 저하시키게 되는 문제점이 있는 것이다. 본 발명은 이러한 여러 문제점을 감안하여 튜브의 정렬과 IC의 투입이 완료된후에 핀이 완전자동으로 삽입될 수 있도록 함으로써 작업자가 튜브를 하나하나 일일이 정렬함에 의한 작업의 번거로움과 생산성의 저하를 막고 작동의 신뢰성을 향상시키며 편의 자동삽입에 의하여 작업능률을 향상시킬 수 있도록 함을 목적으로 하는 것이다.Therefore, according to this type of tube alignment and pin insertion method, it takes a lot of time to align the tubes one by one in the loading unit, which causes a problem of deterioration in productivity, and when the separated tubes are separated and dropped one by one, both sides The tube is caught on the end of the stopper or the tube is inclined when it falls, so it is difficult to separate the dropper from the stopper tube. In some cases, as the discharge operation of the tube of the tube pusher becomes inaccurate, the failure rate is high and the reliability of the operation is low, and there is a problem in that the productivity is further reduced in the process of inserting the pins into the tube. In view of these various problems, the present invention allows pins to be fully automatically inserted after the alignment of the tube and the input of the IC is completed, thereby preventing the worker from having to reduce the productivity and productivity by having the tubes aligned one by one. It aims to improve the reliability and improve the work efficiency by automatic insertion.

이러한 본 발명의 목적은 모우터 및 이를 동력으로 하는 튜브 이송수단과 복수개의 실린더와 모우터로 구성된 튜브 정렬 수단과 복수개의 실린더 및 진공 패드에 의하여 핀 공급기로부터 공급되는 핀을 하나씩 튜브에 삽입하기 위한 핀 삽입수단에 의하여 달성될 수 있는 것으로 이를 첨부된 도면에 의하여 상세히 설명하면 다음과 같다.The object of the present invention is to insert the pins supplied from the pin feeder by the tube and the tube transfer means and the plurality of cylinders and the motor and the tube feed means using the power and the plurality of cylinders and vacuum pads one by one into the tube. It can be achieved by the pin insertion means described in detail by the accompanying drawings as follows.

밀폐된 저면에 튜브 토스용 실린더(1)를 설치하여서된 튜브 적재 박스(2)와, 튜브(3)을 튜브 정렬 위치까지 이송시키기 위한 이송 스톡(4)을 가동시키는 튜브 이송용 모우터(5) 그리고 위치 센서(23),(24)와 튜브 정렬을 위하여 튜브(3) 단부에 삽입되는 에어척(6)과 튜브 정렬 전후진용 실린더(7) 그리고 튜브 정렬용 모우터(8)로된 튜브 정렬 수단(9)과, 튜브 고정용 전후진 실린더(10)와 튜브 공정용 상하 실린더(11) 및 위치센서(26), 튜브 반전 실린더(20), IC투입 완료센서(25) 등으로된 IC투입수단(12)과, 위치센서(23)과 튜브 이송용 실린더(13) 그리고 튜브 상하 이송용 실린더(14) 등으로 된 튜브 이송수단(15)과, 진공 패드(16) 및 진공헤드상하 이동실린더(17)와 진공헤드 전후진 실린더(18) 및 튜브 고정용 실린더(19) 그리고 튜브 이송용 실린더(14,21) 등으로 된 핀 삽입 수단(22)과 작업 완료된 튜브를 보관하기 위한 수납박스(28)로 구성된 것이다.Tube conveying motor (5) for operating a tube loading box (2) provided with a tube tossing cylinder (1) on a sealed bottom and a conveying stock (4) for conveying the tube (3) to the tube alignment position. And a tube with an air chuck (6) inserted into the end of the tube (3) for tube alignment with the position sensors (23) and (24), a cylinder for forward and backward alignment of the tube (7), and a motor (8) for tube alignment IC comprising an alignment means 9, a forward and backward cylinder 10 for fixing the tube, an up and down cylinder 11 for tube processing, a position sensor 26, a tube reversing cylinder 20, an IC injection completion sensor 25, and the like. A tube conveying means 15 comprising a feeding means 12, a position sensor 23, a tube conveying cylinder 13, a tube conveying cylinder 14, and the like, a vacuum pad 16, and a vacuum head vertical movement Number of pin insertions consisting of cylinder 17, vacuum head forward and backward cylinder 18, tube fixing cylinder 19, and tube transfer cylinders 14 and 21 It is comprised of a storage box 28 for storing 22 and the operation is completed the tube.

이와 같이 된 본 발명은 먼저 튜브 적재 박스(2)에 다수의 튜브를 투입한다음 작동 스위치를 조작하면 튜브 토스용 실린더(1)는 튜브를 이송 스톡(4)에 올려 주게되는 것이다.According to the present invention, a plurality of tubes are first put into the tube loading box 2, and then the tube tossing cylinder 1 raises the tube to the transfer stock 4 when the operation switch is operated.

이와 같이 하여 스톡에 튜브가 올려진다음 튜브 이송용 모우터(5)가 작동하여 스톡을 이동시킴으로써 튜브(3)가 위치 센서(23)에 도달하게 된다.In this way, the tube is placed on the stock and the tube transfer motor 5 is operated to move the stock so that the tube 3 reaches the position sensor 23.

그러므로 위치 센서(23)의 신호를 받은 제어장치가 먼저 튜브 이송용 모우터(5)의 작동을 중지시킨다음 튜브 정렬 전후진용 실린더(7)를 작동시켜 에어척(6)이 튜브의 일단부에 끼워지게 한후 튜브 정렬용 모우터(8)를 가동시켜 튜브 정렬 전후진용 실린더(7)와 에어척(6) 그리고 이에 고정된 튜브가 회전되게 하는 것이다.Therefore, the control device receiving the signal from the position sensor 23 first stops the operation of the tube transport motor 5, and then operates the cylinder 7 for tube alignment forward and backward so that the air chuck 6 is connected to one end of the tube. After insertion, the tube alignment motor 8 is operated to rotate the cylinder 7 and the air chuck 6 and the tube fixed thereto for the tube alignment forward and backward.

이러한 과정에서 튜브(3)의 정렬이 완료된 경우 위치 센서(24)가 이를 감지하여 제어장치에 신호를 전달하므로 제어장치는 튜브 정렬용 모우터(8)의 가동을 정지시키는 것이며, 튜브 정렬 전후진용 실린더(7)가 에어척(6)을 원위치시킨다음 튜브 이송용 모우터(5)를 재가동 시키게 되는 것이다.In this process, when the alignment of the tube 3 is completed, the position sensor 24 detects this and transmits a signal to the controller so that the controller stops the operation of the tube 8 for alignment of the tube. After the cylinder 7 returns the air chuck 6 to its original position, the tube transfer motor 5 is restarted.

그러므로 정렬된 튜브(30가 이동하여 IC투입수단(12)에 도달하는 것이며, 이에서는 진입된 튜브(3)가 위치 센서(26)에 의하여 검출되어 제어장치에 신호를 제공하므로 제어장치는 튜브 이송용 모우터(5)의 작동을 중지시키고 튜브 고정용 전후진 실린더(10)와 튜브 고정용 상하 실린더(11)를 작동시켜 튜브의 위치가 안정되게 한후 IC를 튜브(3)에 투입하는 작업을 실시하는 것이다.Therefore, the aligned tube 30 is moved to reach the IC injection means 12, in which the control device transfers the tube because the entered tube 3 is detected by the position sensor 26 to provide a signal to the control device. Stop the operation of the motor 5, operate the forward and backward cylinder 10 for fixing the tube and the up and down cylinder 11 for fixing the tube to stabilize the position of the tube, and then insert the IC into the tube 3. It is done.

이러한 IC의 투입 작업이 완료되면 IC투입 완료 센서(25)는 이를 검출하여 제어장치에 신호를 전달하게 되고 그 결과 제어장치는 튜브 고정용 전후진 실린더(10)와 튜브 고정용 상하 실린더(11)를 작동시켜 원래의 위치로 복귀하도록 하는 것이며, 튜브 반전 실린더(20)에 의하여 튜브를 반전시킨다음 튜브이송용 모우터(8)를 재차 작동시켜 IC가 투입 완료된 튜브(3)를 이송시키게 되는 것이며, 이러한 과정으로 위치센서(27)의 위치에 도달하면 제어장치는 이로부터 소정의 신호를 접수하여 튜브 이송용 모우터(5)의 가동을 정지시킨 다음 튜브 이송용 실린더(13)를 가동시켜 튜브를 제1도의 활살표 방향으로 이송시키게 되는 것이다.When the input operation of the IC is completed, the IC input completion sensor 25 detects this and transmits a signal to the control device. As a result, the control device includes a tube fixing forward and backward cylinder 10 and a tube fixing upper and lower cylinder 11. It is to return to the original position by operating the, and the tube is inverted by the tube reversing cylinder 20, and then the tube transfer motor (8) is operated again to transfer the tube (3) that the IC has been added, In this process, when the position of the position sensor 27 is reached, the control device receives a predetermined signal therefrom, stops the operation of the tube transport motor 5, and then operates the tube transport cylinder 13 to operate the tube. It is to be transferred in the direction of the arrow of FIG.

이어서 튜브(3)는 튜브 이송용 실린더(14),(21)에 의하여 이송되어 위치 센서(28)의 위치에 도달하게 되는 것이며, 이에서는 튜브 고정용 실린더(19)에 의하여 튜브(3)를 고정시키게 되는 것이고, 이어서 진공헤드 상하 이동 실린더(17)가 작동하여 진공 패드(16)를 하강시킴으로서 진공패드(16)에 핀 공급기(30)에서 공급되는 핀(31)이 흡착되게 하는 것이고 이러한 상태에서 진공 헤드 상하 실린더(17)가 작동하여 진공패드(16)를 들어 올린후 진공헤드 전후진 실린더(18)가 작동하여 진공패드(18)가 튜브의 일단에 위치한 삽입공상방에 도달하도록 하는 것이다.The tube 3 is then conveyed by the tube conveying cylinders 14, 21 to reach the position of the position sensor 28, whereby the tube 3 is held by the tube fixing cylinder 19. Then, the vacuum head up and down cylinder 17 is operated to lower the vacuum pad 16 so that the pin 31 supplied from the pin supply 30 is adsorbed to the vacuum pad 16. In the vacuum head upper and lower cylinder 17 is operated to lift the vacuum pad 16, the vacuum head forward and backward cylinder 18 is operated so that the vacuum pad 18 reaches the insertion cavity located at one end of the tube. .

이어서 진공 헤드 상하 실린더(17)가 진공패드(16)를 하강시켜 튜브 일단의 삽입공에 핀(31)을 삽입하고 나면 핀(31)이 삽입된 상태를 위치센서(29)가 감지하여 진공헤드 상하 실린더(17)와 진공헤드 전후진 실린더(18)를 역순으로 작동시켜 진공패드(16)가 최초의 위치로 이동하도록 하면 되는 것이고 수납 박스(28)로 이송되어 보관하게 되는 것이다.Subsequently, after the vacuum head upper and lower cylinders 17 lower the vacuum pad 16 and insert the pin 31 into the insertion hole of the tube end, the position sensor 29 detects the state where the pin 31 is inserted and the vacuum head The upper and lower cylinders 17 and the vacuum head forward and backward cylinders 18 may be operated in the reverse order to move the vacuum pad 16 to the initial position and to be transferred to and stored in the storage box 28.

이러한 완성된 상태의 튜브(3)를 제5도로 보였으며, 이는 다수개로 포장되거나 개별 포장되어 판매될 수 있는 것이다.This finished tube 3 is shown in FIG. 5, which can be packaged in plural or individually packaged.

그리고 제3도에 본 발명을 실시하기 위한 전기적 구성의 일예를 보였으며, 이에서 보는 바와 같이 본 발명에서는 PLC(PROGRAMMABLE LOGIC CONTROLLER)에 의한 시퀀스 콘트롤러를 적용할 수도 있고 마이크로프로세서를 이용한 프로그램 방식 콘트롤러를 적용할 수도 있음은 물론이다.3 shows an example of an electrical configuration for implementing the present invention, and as shown in the present invention, a sequence controller by a PLC (PROGRAMMABLE LOGIC CONTROLLER) may be applied, or a program controller using a microprocessor may be used. Of course, it can be applied.

이와 같이 하여 본 발명은 검사완료된 IC를 보관 운반하기 위한 튜브를 자동으로 정렬하고 IC의 투입이 종료된후 핀을 자동으로 삽입할 수 있게 되는 것이어서 일일이 작업자가 정렬하고 핀을 삽입하는 종래의 방식에 비하여 작업 능율을 대폭 개선시킬 수 있게 되는 것이며, 위치센서 등의 감시 수단에 의하여 콘트롤러가 각종의 실린더와 모우터를 구동하도록 되어있어 작동의 신뢰성을 제고할 수 있게 되는 효과가 있다.In this way, the present invention is to be able to automatically align the tube for storing and transporting the completed IC and to automatically insert the pin after the closing of the IC, so that the operator aligns and inserts the pin. Compared with this, the work efficiency can be greatly improved, and the controller can drive various cylinders and motors by monitoring means such as a position sensor, thereby improving the reliability of operation.

Claims (1)

밀폐된 저면에 튜브 토스용 실린더(1)를 설치하여서된 튜브 적재 박스(2)와, 튜브(3)를 튜브 정렬 위치까지 이송시키기 위한 이송 스톡(4)을 가동시키는 튜브 이송용 모우터(5) 그리고 위치센서(23),(24)와 튜브정렬을 위하여 튜브(3) 단부에 삽입되는 에어척(6)과 튜브 정렬 전후진용 실린더(7) 그리고 튜브 정렬용 모우터(8)로된 튜브정렬 수단(9)과, 튜브 고정용 전후진 실린더(10)와 튜브 고정용 상하 실린더(11) 및 위치센서(26), 튜브 반전 실린더(20), IC튜입 완료센서(25) 등으로된 IC튜입수단(12)과, 위치센서(23)와 튜브 이송용 실린더(13) 등으로 된 튜브 이송수단(15)과, 진공패드(16) 및 진공헤드상하 이동실린더(17)와 진공헤드 전후진 실린더(18) 및 튜브 고정용 실린더(19) 그리고 튜브 이송용 실린더(21) 등으로 된 핀 삽입수단(22)으로 구성됨을 특징으로 하는 IC튜브 정렬 및 핀 삽입 자동화 장치.Tube conveying motor (5) for operating a tube loading box (2) provided with a tube tossing cylinder (1) on a closed bottom and a conveying stock (4) for conveying the tube (3) to the tube alignment position (5). And a tube with an air chuck 6 inserted into the end of the tube 3 for alignment of the tube with the position sensors 23, 24, a cylinder for forward and backward alignment of the tube 7, and a motor 8 for tube alignment. IC consisting of an alignment means 9, an advancing cylinder 10 for fixing the tube, an up and down cylinder 11 for fixing the tube, a position sensor 26, a tube reversing cylinder 20, an IC insertion completion sensor 25, and the like. Tube feeding means (15) consisting of a tubing means (12), a position sensor (23), a tube for feeding tube (13), a vacuum pad (16), a vacuum head up and down cylinder (17), and vacuum heads moving forward and backward. IC tube, characterized in that it consists of a cylinder 18, a tube for fixing the tube 19, and a pin insertion means 22, such as a tube for transporting the cylinder 21, etc. Column and a pin insertion automation unit.
KR1019920013620A 1992-07-30 1992-07-30 Automatic apparatus for ic-tube alignment and pin insertion KR950005271B1 (en)

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KR1019920013620A KR950005271B1 (en) 1992-07-30 1992-07-30 Automatic apparatus for ic-tube alignment and pin insertion

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KR950005271B1 true KR950005271B1 (en) 1995-05-22

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