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1. 发明专利

JPS63315970A FAULT DETECTING DEVICE FOR CLAMP ARM IN PRINTED CIRCUIT BOARD INSPECTING DEVICE 失效
公开(公告)号：JPS63315970A
公开(公告)日：1988-12-23
申请号：JP15232587
申请日：1987-06-18
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： SHINPO SENJI , TAKENAKA YASUO , TSUKAZAKI KOICHI
IPC分类号： G01R31/00 , H05K3/34
摘要： PURPOSE:To prevent the damage of an injection nozzle, and also, to surely execute a vibration test by detecting a clamp arm being in a state that it is upright or similar thereto, due to a fault or an incomplete operation. CONSTITUTION:A work table 2 is fixed onto a rotary table 1, and a board 3 is clamped by a clamp mechanism 6. Thereafter, when a light beam is projected from a projector 10-1 of a gear box 9-1, the light beam D makes a round through mirrors 10-2, 10-3 and 10-4 and received by a light receive device 10-5. In this case, if a clamp arm is in an upright state, the light beam D is cut off, and it is detected as a fault, When the clamp is complete, in the substrate 3, a lead wire 4a of an LSI package 4 is moved to a position of an injection mechanism 7 by X, Y and theta moving mechanisms, jet air Wl and Wr are jetted from nozzles 7b, and an inspection of soldering is executed by a light beam B from an optical device 8.

2. 发明专利

JPS63315937A DIRECTION ADJUSTING METHOD FOR LASER BEAM IN PRINTED BOARD INSPECTING DEVICE 失效
公开(公告)号：JPS63315937A
公开(公告)日：1988-12-23
申请号：JP15232487
申请日：1987-06-18
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： OGAWA SHOHEI , TAKENAKA YASUO , TSUKAZAKI KOICHI
IPC分类号： G01N21/88 , G01N21/956 , H05K3/34
摘要： PURPOSE:To align a laser beam rationally and efficiently by adjusting the direction of a light source with a circularly sectioned beam and adjusting an optical component with an elliptically sectioned beam. CONSTITUTION:Almost all of the circularly sectional laser beam 3a from the light source 3 is reflected by a partial transmission mirror 13a and the remainder is transmitted. This transmitted light is photodetected by a shift detector 12 consisting of four divided photodetection diodes and the projection direction of the laser light source is so adjusted that the photodetection levels of the respective photodetecting elements are equal. The reflected light from the mirror 13a is changed in direction by a mirror 4b and converted by an expander 5 and a compander 6 into the elliptically sectioned beam 14, part of which is transmitted through a partial transmission mirror 13b. Shift detectors consisting of diodes 15-1 and 15-2 are arranged at both ends of the ellipse major axis of the transmitted light symmetrically and the position and direction of each optical component are so adjusted that the photodetection levels are equal to each other.

3. 发明专利

JPS62298738A METHOD AND MECHANISM FOR FIXING PRINTED CIRCUIT BOARD 失效
公开(公告)号：JPS62298738A
公开(公告)日：1987-12-25
申请号：JP14247686
申请日：1986-06-18
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： MIYATAKA NOBUYUKI , SHINPO SENJI , TSUKAZAKI KOICHI
IPC分类号： H01L21/683 , G01M7/00 , G01M7/02 , H01L21/67 , H01L21/68 , H05K13/08
摘要： PURPOSE:To keep a printed circuit board itself from causing natural oscillation at a vibration test thereof, by performing a point pressing by an independent pressing force at several points arranged at fixed intervals along all four sides of the printed circuit board. CONSTITUTION:Four rotating shaft 12 which are driven to rotate through a link of a gear 18 using one air cylinder 17 are provided on the circumference of a printed circuit board 1 and pressing elements 10 each having a spring 13 for pressing the printed circuit board 1 are arranged on each of the rotating shafts 12 at fixed intervals. When the rotating shaft 12 turn and stops at respective fixed positions, all the pressing elements 10 press the printed circuit board 1 at points independently by a spring force. Thus, as pressing forces of the pressing elements 10 are independent of one another, there generate no clearance between the printed circuit board 1 and the pressing elements 10 regardless any gap a' between the printed circuit board 1 and the sponge 9, thereby keeping the printed circuit board 1 from developing natural oscillation.

4. 发明专利

JPS63316870A POSITIONING MECHANISM FOR OPTICAL COMPONENT 失效
公开(公告)号：JPS63316870A
公开(公告)日：1988-12-26
申请号：JP15305787
申请日：1987-06-19
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： SHINPO SENJI , TAKENAKA YASUO , TSUKAZAKI KOICHI
IPC分类号： G03G7/00 , B41J25/34 , G02B7/00
摘要： PURPOSE:To eliminate the error of a positioning mechanism and to eliminate the need for adjustment at the time of refitting operation by limiting the movement of a positioning plate by guide pins provided at right angles to the optical axis of an optical system and adjusting its position by utilizing an elliptic hole, and bringing a storage plate into contact with the flank of the positioning plate and fixing the plate. CONSTITUTION:A holder 17 which holds an optical component 17a is accurately fixed to the positioning plate 18. The positioning plate 18 is fixed temporarily in the elliptic hole 18a in contact with the two guide pins 19a and 19b provided to a reference base 11, and the positioning plate 18 is moved along the guide pins to perform positioning operation. Then a setscrew 18b in the elliptic hole is clamped and fixed, and the storage plate 21 is fixed with screws in contact with the flank of the positioning plate 18. When an optical component 17a is detached, it is detached from a reference base board 11 together with the positioning plate 18. The flank of the position plate 18 is brought into contact with the storage plate 21 when the component is fitted again, and the positioning plate is returned to the same position as before immediately by using the guide pins.

5. 发明专利

JPS63315969A BOARD INSTALLATION CONFIRMING CIRCUIT FOR PRINTED CIRCUIT BOARD INSPECTING DEVICE 失效
公开(公告)号：JPS63315969A
公开(公告)日：1988-12-23
申请号：JP15232387
申请日：1987-06-18
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： SHINPO SENJI , TAKENAKA YASUO , TSUKAZAKI KOICHI
IPC分类号： G01R31/28 , G01R31/00 , H05K3/34 , H05K13/04
摘要： PURPOSE:To eliminate the generation of a vibration of a board being free from harm, and to avoid the damage of the board and an LSI, by starting an injection test of jet air, after it has been confirmed that an aligned installation is sure. CONSTITUTION:When a board 3 is placed on a work table, and clamped in a state that its aligning holes 3a-1, 3a-2 are fitted into projections 5-1, 5-2, respectively, a head part of a contact switch which is pressed against the board 3 descends and contacts 9a-1, 9a-2 are closed. On the other hand, by applying an AC from a signal power source 10b to a secondary side of a transformer 10a, a variation of a current of the secondary side by an open-circuit or a closed circuit of the contact is detected, and when both the contacts are closed circuits, an installation confirming signal is outputted. Thereafter, in the board 3, a lead wire 4a of one side of an LSI package 4 is moved to a position of an injection mechanism 7 by X, Y and theta moving mechanisms, jet air Wl and Wr are jetted from nozzles 7b, and an inspection of soldering is executed by a light beam B from an optical device 8.

6. 发明专利

JPS6348428A FIXING MECHANISM FOR PRINTED BOARD 失效
公开(公告)号：JPS6348428A
公开(公告)日：1988-03-01
申请号：JP19362786
申请日：1986-08-19
申请人： HITACHI ELECTR ENG , HITACHI LTD
发明人： SHINPO SENJI , TAKENAKA YASUO , TSUKAZAKI KOICHI
IPC分类号： G01M7/02 , G01M7/00
摘要： PURPOSE:To fix a printed board stably to a vibration tester by providing four rotating shafts which are rotated by a gear mechanism at the same time outside the printed board in parallel to the four sides, and pressing the printed board elastically with pressers supported pivotally on the rotating shafts. CONSTITUTION:A board fixation block 10 is supported pivotally on a rotating shaft. A driving block 12 is fixed on the rotating shaft adjacently to the board fixation block 10, which is driven by its rotation to press a presser 11 atop the board fixation block 10 against a printed board 11. Plural mechanisms including pressers 11 are fitted on four rotating shafts 7 arranged in parallel to the four sides of the printed board 1 at specific intervals and at specific positions, and the four rotating shafts 7 are coupled mutually by gears 15 and put in simultaneous pressing operation by a driving mechanism 16. Consequently, the printed board is fixed stably to the vibration testing machine for the printed board.

7. 发明专利

JPH05196435A DETECTING METHOD FOR PATTERN 失效
公开(公告)号：JPH05196435A
公开(公告)日：1993-08-06
申请号：JP15473092
申请日：1992-06-15
申请人： HITACHI LTD
发明人： SAITOU KEIYA , TSUKAZAKI KOICHI , HARA YASUHIKO
IPC分类号： G01B11/24 , G01N21/88 , G01N21/956
摘要： PURPOSE:To detect a wiring pattern and a through hole by providing a fluorescent substance on the rear side of a printed wiring board, by making fluorescence be generated in the fluorescent substance by lights passed through a base and the through hole respectively, and by detecting light obtained by adding the fluorescence thus generated to a fluorescence generated in the base. CONSTITUTION:A fluorescent substance 12 generating a fluorescence having virtually the same wavelength as the one of a base 3 is provided on the rear side of a printed wiring board 1. A light 21 from a light source 5 is turned/by a filter 7 into a light 22 of a wavelength making a fluorescence be generated readily from the base 3, an optical path thereof is changed by a semi-transparent mirror 8 and the light is applied to a wiring surface 2. A reflected light is generated from the wiring surface 2, while the fluorescence is generated from the base 3. The light transmitted through the base 3 is applied to the fluorescent substance 12 and makes the fluorescence be generated and this fluorescence is transmitted through the base 3 and proceeds upward. Moreover, a fluorescence 33 is generated from the fluorescent substance 12 by a light 24 passing through a through hole 13 and that light returns through the through hole 13 and integrates with the foregoing fluorescence to be a light 36. The light 36 passes through the semi-transparent mirror 8, only a fluorescence 35 is transmitted through a filter 9, with the reflected light cut thereby, and an image is formed on a detector 11 by an image-forming lens 10. In this way, the positions and shapes of a wiring pattern and the through hole are detected.

8. 发明专利

JPH0436335B2 失效
公开(公告)号：JPH0436335B2
公开(公告)日：1992-06-15
申请号：JP9230483
申请日：1983-05-27
申请人： HITACHI LTD
发明人： HARA YASUHIKO , TSUKAZAKI KOICHI , UJIIE NORIAKI
IPC分类号： H05K3/00 , G01B11/24 , G01B11/245 , G01B11/30 , G01N21/64 , G01N21/84 , G01N21/88 , G01N21/956
摘要： PURPOSE:To shorten the time required for pattern detection by irradiating light also from the back of wiring surfaces in addition to the front of the wiring surfaces and detecting simultaneously wiring patterns by detectors fitted to both front and back sides of the wiring surfaces. CONSTITUTION:Light projected from luminance light sources 11, 11' are passed through condenser lenses 21, 21' and blue filters 22, 22', reflected by mirrors 26, 26' 27, 27' and irradiate the wiring surfaces 2, 2' on the front and back of a printed board 1 from their inclined directions, so that fluorescence is emitted from the board 1. The fluorescence emitted from the board 1 and reflected light from the wiring surfaces 2, 2' are made incident to filters 24, 24' and only the transmitted fluorescence forms negative patterns of the wiring on the photo-electric conversion surfaces of photodetectors 13, 13' by image formation lenses 25, 25'. Therefore, the time required for pattern formation is shortened.

9. 发明专利

JPH0277980A METHOD FOR INSPECTING CONNECTED PART BY SOLDERING 失效
公开(公告)号：JPH0277980A
公开(公告)日：1990-03-19
申请号：JP22875588
申请日：1988-09-14
申请人： HITACHI LTD
发明人： HOSHI SHIRO , UDAGAWA KATSUMI , TSUKAZAKI KOICHI
IPC分类号： G01N25/72 , B23K1/00 , G06T1/00 , H05K3/34
摘要： PURPOSE:To easily discriminate the quality of a connected part by soldering by applying a paint, the physical property of which changes when the soldered part is heated and observing the soldered part after heating. CONSTITUTION:Particles 7 of the paint applied on the surface of a soldered reed 5 do not deform and maintain their original shapes even when hot air of about 80 deg.C is blown on the reed 5 for 1-2 minutes, because the heat capacity of the solder is large. On the other hand, particles 7 of the paint applied on the surface of another reed 6 which is not soldered are melted by the hot air and form a film 8 of the paint and the particles 7 disappear. The part of the film 8 formed as a result of heating becomes flat and strongly reflects inspection light from a light source 10 and strong reflected light enters a detector 11. Since the particles 7 maintain the original shapes at a well soldered part, the light reflectivity of the part is low and the reflected light entering the detector 11 becomes less in quantity. Therefore, when such states are processed with a processor 12, the quality of the connected part by soldering can be discriminated.

10. 发明专利

JPS62197027A SUCTION PORT MEMBER OF DUST SUCTION APPARATUS 失效
公开(公告)号：JPS62197027A
公开(公告)日：1987-08-31
申请号：JP4078286
申请日：1986-02-26
申请人： HITACHI LTD
发明人： HOSHI SHIRO , TSUKAZAKI KOICHI
IPC分类号： A47L9/02

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