* NOTICE*
`
`4dPO and INPIT are not responsible far any damages caused by the use of this translation.
`
`4. This doowrient has been translated by computer. So the irarisiation mayriot reflect the original precisely.
`
`2." shows a wordwhich cannot be translated.
`
`3. in the drawings, any wards are not tranelated.
`
`Publication Number
`
`JPS53137370A
`
`Claim
`
`[Patent Claims]
`
`1} A method of attaching a movable member by irradiating @ projecting part inserted into
`the through hole of a mounting memberfor movably holding a movable memberhaving
`
`a through-hole with a laser beam and welding the projecting part of the projecting part to
`
`the opposing part of the mounting member. A movable member mounting method is
`
`characterized in that an instrumentis provided which is connected to a 2 position of the
`
`mounting member and measures a change in the resistance value of the member, and
`
`&@ movable member is mounted while observing a welding state of the mounting member.
`2} A method of attaching a movable member according to claim 3, wherein a laser
`
`oscillator for emitting a laser beam for wekling 4 projection portion of a mounting member
`
`is controlled to oscillate by an output change of an instrument.
`3) A method of atiaching a movable member according to claim 3, wherein the relative
`
`position of the projection portion of the attachment member and the irradiation laser light
`
`is controlled by an output change of the instrument.
`
`Description
`
`{Detailed description of the invention]
`
`This invention relates to a method of mounting 4 movable member, such as 4 (Nk.
`
`Canventionally, a mounting member 17 for supporting a movable member 10 as shown
`
`in FIG.
`1
`is formed in a U-shape so as to hold the movable member 10 therebetween.
`Protrucding portions 12,12 are formed on opposite side surfaces of the first and second
`
`side surfaces, respectively, and protrude inwardly. The projection 12,12 is inserted into
`the through hole 13 of the movable member 10 to form a pivot.
`
`in practice, the mavable member 10 is interposed in both side surfaces thereof, and the
`projecting portion 12,12 js formed by a punch or the hke from the outside of each side
`
`

`

`surface facing the through hele 13 of the member 10, and is pivotally supported, However,
`
`such 6 method is very smail, for example, when the diameter of the through hole 13 of
`
`the movable member 10 is t or less, as i the conventional jink device, and thus has the
`
`follawing drawbacks.
`
`in-oiher words, the pasitioning of the projection 12,12 and the through-hole 13 is difficult,
`
`so that the movable member 10 cannot be moved or is not smoothly moved. Moreover,
`
`When the thickness of gach of the members 10,71 is equal to or less than 7 as in the
`
`case of the through-hole 15, since the depth of insertion of the pratrusion 12.172 into the
`
`through-hole 13 is also a microarder, the reliability is low simply by projecting the member
`by an external force.
`in ather words,
`if the insertian depth of the projection 12,12 is
`
`increased to increase the reliability, an unnecessary load is applied ta the movement of
`
`ihe movable member 70, and conversely, if the insertion depth is decreased, the suppor
`of the movable member 10 is weakened.
`
`itis an object of the present invention to provide a movable member mounting method
`
`which eliminates such a drawback that a projecting portion formed on a mounting
`member is welded io increase reliability, and that a welding state of the projecting portion
`
`is captured as a change ijn. the resistance value, whereby a movable member can be
`
`mounted more reliably.
`
`Hereinafter, an embodiment of the present invention wil be described with reference to
`
`FIG. 2.
`
`Reference numeral 20 denotes a movable member having a through hole 21, and 22
`
`denotes a U-shaped mounting member having a projecting portion 23,23 on the opposite
`
`side. The projection 22 of the mounting member 22 may be formed in advance or may
`
`be formed by an external force after the movable member 20 is disposed between the
`
`side surfaces. The depih of insertion of the projection 23,23 into the thraugh-hole 27 is
`
`reduced to such an extent that the movable member 20 does not separate from the
`
`mounting member 22.
`in this way, the integrated members 20,22 are arranged on an appropriate base, and the
`
`laser beam 25 focused by the condenserfens 24 is Hradiated on one of the protrusions
`
`2a, and the both protrusions 23,23 are welded. This welding operation with the laser
`
`beam 25 has an advantage thai it can be performed in a non-contact manner and the
`processing me can be completed in the order of msec. Further, adjustment of the
`
`machining point, adjustment of the machining energy, and the like can be extremely
`
`easily performed by an optical system, and thus, there is also an advaniage in that
`
`automation, saving of labor, and the like can be achieved. As a matter of course, as
`
`

`

`compared with a case where 3 projection portion formed by an external force is used as
`
`4 pivot, it is possible to make it possible to perform the role of a pivot shaft,
`
`Both terminals of the measuring instrument 26 for measuring the low resistance value
`
`are connected tc the opposite side surfaces of the mounting member 22. 1 is. possible to
`
`detect the welding Siate of the projection 23,23 by using the meter 26. in other words, as
`
`shown in FIG. 4, the resistance value before welding indicates the total resistance vaiue
`
`of the mounting member 22, and after welding, the resistance value indicates the parallel
`
`resistance value of the welded portion 23,23. The resistance value after the welding is
`approximately 4/2 or lessof that before welding.
`
`in this way, according to the present invention, after the movable member 20 is
`temporarily fixed by the projection portion 23,23, itis possible to easily and rellably weld
`
`the projection portion 23,23 by irradiating the laser beam 25 while observing the change
`
`in the resistance value of the meter 26. Referring now to FiG. 3, an embodied apparatus
`for carrying out the method of the present invention will be described.
`
`Reference numeral 31 denotes an XY table on which the temporarily fixed member 20,22
`
`is placed. A laser oscillator 32 that emits a laser beam 25 through a condenser lens 24
`
`is disposed abovethe table 31. Between the oscillator 32 and the condenser jens 24,
`
`there is interposed 4 dichroic mirror 34 for guiding the reflected fight fram the surface of
`
`the member 22 to the optical system 33. Further, the oscillator 32 ts connected to a laser
`power source 35.
`
`Further, at a position deviated from thelaser beam 25 irradiation position of the member
`
`22, the terminals 26 a and 26 b of the meter 26 are connected. The meter 26 is connected
`
`to a control unit 36 connected to the laser power supply 35, The control unit 36 controls
`
`the laser power Supply 35 in response to an output change from the meter 26. That is,
`
`as shown in FIG. 4, when the resistance value falls down to a predetermined value, the
`
`laser power supply 35 is stopped to stop the irradiation of the laser light 25. Further, the
`
`output of the control unit 35 is also supplied to the XY table 31 se that the irradiation
`
`position of the laser beam 25 can be adjusted.
`Now, the integrated member 20,22 is placed on the XY table 31. Then, the X¥ table 34
`
`is operated to position the projection 23 of the member 22 on the optical axis of the laser
`
`heam 25. This adjustment seesthe observation optical device 33.
`
`““.. the racolummi-- .
`
`ina state where 4projection 23 is pasitioned on an optical axis,
`
`both terminals 26 a, 26 b of the meter 26 are connected to 2 positions of a member 22,
`
`and then a laser oscillator 32 is driven by the laser power Supply 35. The laser bear 25
`
`emitted from the oscillator 32 passes through the dichroic mirror 34, is condensed by the
`
`

`

`condenser lens 24, andis irradiated on the projection partion 23 of the member 22. Then,
`
`one of the projecting portions 23 irradiated with the laser beam 25 is melted and weided
`
`to the other projecting portion 23.
`
`On the other hand, the output of the meter 26 is changed as shown in FIG. 4 by welding
`
`the projection 23, and is supplied to the control unit 36. Then, the control unit 36 stops
`the Jaser power supply unit 35 and stops the emission of the laser light 28 Therefore,it
`
`is not necessary to furtherirradiate the laser bear 25 after welding and to unnecessarily
`
`melt the other projection portion 23 to thereby deteriorate the welding state therebetween,
`Further, the contro! unit $6 operates the XY table 37 so as ta remove the completely
`
`integrated members 20,22 from the laser beam axis. By adjusting the relative position of
`the member 20.22 and the laser beam 25 in this way, it is also possible to arrange the
`
`member 20,22 continuously on the moving belt and to sequentially position the member
`
`on the laser beam axis, At ihis time,itis alsa possible to predetermine the output change
`value of the meter 26 and to defermine whether or nat the welding state is good
`
`simultaneously with the oscillation stop and the position adjustment in other words,
`
`when the predetermined value is not reached, the laser light 25 can be further irradiated
`
`of rejected as a defective product. Of course,it is possible to supply a signal for starting
`
`the laser power supply 35 again after adjusting the position, |. e., after the new member
`
`20,22 has been positioned on the laser beam axis of the contro! unit 36.
`As described in the description of the prior art, this method is particularly suitable for
`
`mounting small members, so that the welding operation can be completed by 7 pulses
`
`of laser light 25. Therefore,
`
`it
`
`is possible to continuously and reliably perform the
`
`mounting work of the movable member whie determining whether or not the welding
`
`state is good by the meter 26.
`
`Note that, although a U-shaped configuration has been described as the mounting
`
`member 22, tis also possible to use, for example, a pair of 1 members each having a
`
`protruding portion, and the movable member is attached by inserting both projecting
`
`portions of the memberinto the through hole 21 of the movable member 20 and welding
`the projecting portion. Further, the present invention is not limited to the method of
`
`attaching the link, and it is needless to Say that the present invention is sufficiently
`
`effective as a method of attaching the other movable member.
`
`According to the present invention, since the movable member is atlached by welding
`by the laser beam while measuring the change in the resistance value of the mounting
`
`member in this way,
`
`it
`
`is passible to reliably attach the movable member without
`
`unnecessarily applying an unnecessary foad to the movement of the movable member
`
`or the support of the movable member. Further, it is possible to reduce the working time
`
`

`

`and labor and save Jabor and jabor, and to provide a production process with high yield.
`
`[Brief Descriptionof the Drawings}
`
`FIG, 1
`
`is a sectional view for explaining a method of maunting a conventional movable
`
`member, FIG. 2.18 & sectional view for exolaining a mounting method of the present
`
`invention, FIG. 3 is a Structural viewfor explaining an apparatus which embodies the
`
`mounting method of the present invention, and FIG. 4 is a diagram showing a change in
`resistance value of an instrument.
`
`in the drawing, reference numeral 20 denotes a movable member : 27. a through-hole ;
`
`22, amounting member ; 23, a projection : 25, alaser beam ; 26, an instrument: and 32,
`a laser oscilator.
`
`

`

`Basar
`
`48 BAAS aT A
`
`49 oF HL2S
`
`Y53~-137370
`
`Sint, Ch
`cuht BBRDie
`
`ePNGE|GRUB PRRSS4ECIG7BMLA 300
`641-31
`53 EB 4
`Fiec itd
`ot A 8
`7367-33
`FB 7/00 £
`Fisc 7/08
`
`ROB
`SAR AUK
`
`
`
`SDSRAHRAP ATE
`
`=o
`cen
`CAE BS
`
`
`SSREEERES RSM
`
`AURSoHETAS
`
`AN HE
`SASett
`148SEAR72
`ARRRIDE:
`
`Phe,
`
`25598
`
`Sa
`
`88
`
`iab2—
`
`~§3014
`
`82520 1977
`EESESE
`
`2£0OR BR, AAP Pe eo ROR MR Se mae
`WARE Bp!
`
`PM. ML MRRP SS ET RRR 1 Oe ME
`
`TARBNRBRA LL, eRe 1 oe POR
`
`Be)
`
`at
`
`4
`
`RM Oo By
`
`RU We BR at RR APO
`
`Se Se SERWD BH
`
`k z
`
`.
`
`1) BACATAV RE BH EAR ME MTS
`
`RHR OMEAHLAR MBA DHAABRHRMK
`
`ce
`PPA L SK SE RRBMR AHR TMS, Lt,
`
`~KEMS LT. EMDRHER HM aw
`
`WD LW A oN Re AAD PF OB oy
`
`Kei C., HERA ROL ERR AR,
`
`COP NRPTARM KM. RAADK WOT ae
`
`HORA RH ML 2. LER BRR SR TH S.
`
`Ee
`
`G@REBL 2.
`
`Ll gh. METH Reto ORK
`
`LOH ORR RLS METERRAT.
`
`Li ACM RBA RHR ER RPA LC OTSS!,
`
`RHR OC GRRE CRRL EAD STR RH
`
`BHP RCAL ERRATA RD RY WR.
`
`2) RY RH ORDER MAP AeE~ KEE
`
`BT ae KP KRRR THROM Heth s
`
`UMSNH SHS SPELAE SE SBMETS
`33 RH MM ORRMEMHLOF —PmED HH
`RESO EMME re.
`
`AOL ERR L PSPS MRO HRI RER
`
`© eS MIRA OP Ro
`
`3.
`
`35 7 HF MeOY
`
`RRR, TRB Le PEOH REAR Ae
`
`22. HHL GOB LARA RE TARY O
`
`EER LOK
`
`HMORD Ke PME RRB 2, te
`wh 8
`Le Le &.
`x os fat 3 at
`Pe eR eH oe OE RRM OE
`
`Leese,
`
`LO, CeLbeH en RRE DRS, Be or
`
`PRP LOORA Li Oe tiaFOee «
`
`MASH TM Ea, RGOLAStaRePC@ lo ths
`
`TebOG, RRM 2. PZERRL ALOE
`
`HOES REL. COBM RHE 1 8 ee we
`
`SYGE RC PORK TP Rb ORAL EH,
`(23
`
`anh Lom
`
`

`

`Re GOBHLG., LLiOMeSRL 1 FPR 1
`1202
`SRL 2
`tm FER
`Stik
`ae MR Fe
`
`HY OMSeCR. BRAMMER
`
`FLSA OR ARPA 2 oH
`
`MARL Pee Aas
`
`Ve BERL SEGRE E NT
`
`MAI 19 7370@
`AMR OF TONRMMKME LAB, ADK
`
`EHR TE RH, EORMR 22. 2a
`
`BAA2ZL AS DORA RAR. TRA 20 BR
`
`RH 2 PEM AM RE EW EA.
`
`SC, 2O@LAk, ~KLAIRAMBH 2D,
`
`SH
`
`yO OL
`4md
`
`FRM LAE Fey
`
`ZL ERRORS ELTM RL, tO vO RHE
`
`Swim ib by
`
`2K Ree ROCHE RH Ae ~~ HES
`
`L2OMWA RW Se XK
`Qe ioogaee
`SC PH By WwBe
`
`LORBEL Le
`
`LOOeH AH C RAs
`
`BARR HR AR
`
`RARE MHS
`
`4b REE
`
`WASPSLE RE
`
`OR RR Oe We ws bE
`
`PA EL CMA A
`
`eke TB,
`
`bpm Re We
`
`RHERAO SES
`
`BUVPEALVRAOGSOO Re ARS
`
`MELE FPS
`
`RF, 2oaae
`
`~HRM SR 2RESRMELT
`
`RAR OD ew
`
`2un., BHO 1 &
`
`BH Sw
`
`22028
`
`EMBL, BHR 238. FREHRNTAs. EG
`we 2 SRE SMR EMI RA TT’
`
`POM TLR A mse tom FH PRP Peo ew
`
`TREN ALRAL CHS, TK. BTA OR
`wor b BH
`
`By, Whe Aa ~ OR BRS 2 EK
`THRECTTE. BREAD LON RA SE OCAS
`RHETHas PEA, HMOL OC BEND
`Ki PRR ERARR HE RRSP AR EK EL
`
`CREEK POMMORR eT e&betocdee ee
`Ba
`
`WY 2 RW WIC we we he
`
`2 Ro P Sse
`
`ER. REMAN 2 2 ORR PARR OR* EH
`
`ROMA A THA
`
`COMP MR 2 2 ORR
`
`GRAM R DOH HAH 2 F OCHuRKABe ant
`
`2242, FOUR L
`
`THM TERI L. BOWE
`
`MA, CORBA Me PReH2 8, 232 Oe
`tah
`
`MARE eer ec
`
`bw ts Beg
`
`a 4
`
`RA WAZ se
`
`Me PP hom aR
`
`BY © G0 EB ERS
`
`mw RL
`
`MwA RAS
`ne
`aae
`
`Om Bik © MER Se
`
`giRe 2 &
`
`. 2 3 Mos
`
`ESPOMA WE.
`
`drs
`
`ner accor
`
`tof oR Bw 2 oO
`
`Min te Oe Baye
`
`be
`
`on
`
`&w
`
`#8 #
`
`we
`a#
`
`ay
`
`ba
`%
`Po
`
`th
`
`as
`
`2e RR
`tewhe
`
`~S 25
`
`HTM A>
`
`id
`
`oi Ac iS
`4
`
`} ‘4d
`
`oh ba “ %
`x
`ee Se
`
`ze 3 Ber
`
`WMP Aw oP oom ae
`
`he
`
`RORBB 22 EMRE YS
`
`KE 2 2M be o OR NS
`
`“AMC ROK tT Pa tvs
`
`CHG, BH, LORRI 2H ew Re
`238K RR SHR TH S|.
`
`Be, WRB koew- Wes MH ES
`
`MOoARREMRK HR. NB 26 OW MF 2G a.
`
`26d RMMAN ChE, LOMB 2 6, BR
`
`we YH MRSS RR e SHAHBG OO ORE RE
`
`SHCHA. COMMBG 6, 2 Fe oS
`
`WSC Lo. Me FeRO eH
`
`BPSAOCHA, PEO, MARE RT LS
`
`KM ROA EME CR FP Oe ee ee Pe
`
`Mase Ph Adee FP -H 25 OMape Pub s
`
`e@ALNTHA. BH, COMANM AS OHA.
`ME RY Fe Fe RL RL RR AR, eee
`
`23 OMBREROMRBEKHER AALS EMME
`HTMBS
`
`SCL, AOL SKRARL, EK BLK Be
`
`2a, eK Y Fe Paes pK RR PTS,
`
`LC, YP Fe Lee L, RBS 2
`
`ORBM IR rrr eee ORE
`
`2, COMB, RRB RRIIGEH
`
`da
`
`i
`
`€
`

`

`BRET EF. HM hI RBM 2 F BAR LAR
`
`RC, GRP eOM ere ea. 26 RE
`HOA OCHRCRMRL, TOKRMRE -¥-B
`Mase kee VW WRI 2 eRe ra.
`
`OMB 2deokh than we be FH,
`
`HO M~ Ts 7a7 oO
`SMXVYF - Fas l_eeera. COLIN
`
`Bea. €8 Ew >
`
`~“H2S LMHS ER SH
`
`BTS LSKR TSU ERLE, HAMMee,
`
`22EEOAAL LEME L, BOR OH
`RCA RSS SOLA THLE. COR,
`36 AER
`
`#a Peg yv SPFSt RRL w Rad
`
`PRLS GHAR REP HR RL Te 8. BR
`
`*
`
`Bb
`
`—F
`
`e, RR
`
`$$ ab
`
`Le CWP GD RB ow
`
`TRH AR, HMB 22 ORMB se Mas
`
`HS, SPLELOe-T- HD aeHRH ERAS
`
`HORMR22, BRLTIRAO RRMA IE
`
`BRANnRS.
`
`~F. HEAPS 2 Ow Hh, RSW 2 2 se
`BAH RC EME ER ABR EPR REL,
`
`BREE GRU ~H- HD HM SH. BAO
`RROLICL KARE BRITTON OHBK
`Beit eae c tue za,
`
`Be. COMMM AGE. BRK~RE THe
`
`MOMS O, ZR KY KH RR GAP Ta
`
`MER HM F EKER ANS. ELT. 2 OB
`
`“RRL KER LAR, BO - ov ~ SB bw
`
`Mes ed. HRe KY“ RASS EPL EvY
`
`WHORE RETSECLE TEA,
`
`~F ew 2s ORHeE Pg ea, LAM OT,
`
`RRO OMA TMC A LAR COR RRS
`
`Kp Fe BORA KRRTEA OTe SDA,
`
`Bw, rebbpasA eRe od, 22 Bw ~ vf
`
`SHR ACRR TRA, LRAT, HRA Gt
`
`PDEDORRSKREORBONM ET R REDE
`
`Laie AG -F- PSR EDR ESA Hoo
`me >»
`
`L.-C BF SB Se AE Oe RR a es RR OF
`
`ef)
`
`i3)
`
`W. MAB 2R ELTA ER OLOY Hin
`
`WE Lest, Me. Re SH MATS
`QHEROT, TORE OW Rh Be TS BH 20
`
`OAH TERA LS FOREN ERE TS
`
`KLTPHBH EME AEE LTE RW. F
`
`HOWMMM. SAR eoR Pore nee RY
`
`TAROWMRR. BIB COM OMA Me
`os
`ARGLAR RE RRP AR OBR. BAR
`
`HORMRL ee PTR CHA
`
`ES, HP eee PRM. Cte. £2
`
`WAR, 2 FRB. 2b ee mH oe,
`
`2. OBS, SK SOA PRES
`
`286K NB. Feder BRE TEA.
`
`O- get, oye Soke wes hws
`
`SHR BROCLR EL RAA TSA,
`
`ABA #8 No
`
`SB
`
`CALS)
`
`FORM, COLAC MY Ma GMM a ee
`zt
`SHE LER Sem OME EbBat TAS
`baat %
`Pou
`te
`et, Ceol 6 C7
`
`et eee’
`
`Me OVW Ro
`4
`“Fr
`HERAT CROC A ES
`ft
`KAW MEEMRH STE RTEE. BR. HE
`
`Re ee CRP. RE
`
`Ain bee de, Sow
`
`RIS Q&S, TOM Sah. ABib es
`
`ESTE. BHP ORMRRTHR Ee Ts
`
`ee Be
`es}mai
`
`ae awe
`
`RiNMR CROP ORF ORA DEER
`
`a)
`
`4 03—
`
`)
`
`

`

`_ASSDERS9—-19. 7 370
`
`
`
`OLR ee
`SA8 1 SAR
`
`—404—
`
`