WO2016001992A1 - Dispositif et procédé pour lier des éléments en forme de plaque mince - Google Patents

Dispositif et procédé pour lier des éléments en forme de plaque mince Download PDF

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Publication number
WO2016001992A1
WO2016001992A1 PCT/JP2014/067446 JP2014067446W WO2016001992A1 WO 2016001992 A1 WO2016001992 A1 WO 2016001992A1 JP 2014067446 W JP2014067446 W JP 2014067446W WO 2016001992 A1 WO2016001992 A1 WO 2016001992A1
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WO
WIPO (PCT)
Prior art keywords
thin plate
joining
metal separator
holding
plate member
Prior art date
Application number
PCT/JP2014/067446
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English (en)
Japanese (ja)
Inventor
直之 森宮
村田　等
庸男 歳桃
宏和 田林
尚樹 岡本
直哉 吉田
西村　公男
Original Assignee
日産自動車株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日産自動車株式会社 filed Critical 日産自動車株式会社
Priority to PCT/JP2014/067446 priority Critical patent/WO2016001992A1/fr
Priority to JP2016530715A priority patent/JP6187695B2/ja
Publication of WO2016001992A1 publication Critical patent/WO2016001992A1/fr

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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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work

Definitions

  • the present invention relates to a thin plate member joining apparatus and a thin plate member joining method.
  • the present invention has been made in order to solve the above-described problems, and a thin plate-like member joining method capable of preventing poor joining when thin plate-like members are stacked and joined in an annular shape, and the joining thereof. It is an object of the present invention to provide a thin plate member joining apparatus embodying the method.
  • the thin plate-like member joining apparatus that achieves the above object has a holding part and a joining part.
  • the holding unit holds one thin plate member and another thin plate member in a stacked state.
  • the joining portion joins at least an annular joining portion provided in one thin plate member and an annular joining portion provided in another thin plate member.
  • the holding unit includes a first holding unit and a second holding unit.
  • a 1st holding part hold maintains the 1st end part located along the junction part of one thin plate-shaped member, and the 1st end part located along the junction part of another thin plate-shaped member along a lamination direction.
  • the second holding portion includes a second end portion located inward of the first end portion of one thin plate-like member and a second end portion located inward of the first end portion of the other thin plate-like member. Are held in the stacking direction.
  • the holding step includes a first end located along an annular joint portion provided in one thin plate-like member and a first end located along an annular joint portion provided in another thin plate-like member. Hold along the stacking direction.
  • the holding step includes a second end portion located inward of the first end portion of one thin plate-like member and a second end portion located inward of the first end portion of the other thin plate-like member. Are held in the stacking direction.
  • the joining step at least a joining portion of one thin plate member and a joining portion of another thin plate member are joined to each other.
  • FIG. 4 is an end view showing a state in which the positioning member is inserted into the positioning hole on the side surface of the metal separator unit following FIG. 3. It is an end elevation which shows the state which pressed the press member from upper direction with respect to the center part of a metal separator unit following FIG.
  • FIG. 6 is an end view showing a state in which the upper clamping member is urged from above with respect to the outer peripheral edge of the metal separator unit following FIG. 5.
  • FIG. 7 is an end view showing a state in which the outer peripheral edge of the metal separator unit is welded by a laser oscillator following FIG. 6. It is a perspective view which shows the joining apparatus of the thin plate-shaped member which concerns on 2nd Embodiment. It is an end view which shows typically a part of joining apparatus of FIG. It is an end elevation which shows the state which mounted the metal separator unit in the holding
  • FIG. 11 is an end view showing a state in which the positioning member is inserted into the positioning hole on the side surface of the metal separator unit following FIG. 10.
  • FIG. 12 is an end view showing a state in which the pressing member is pressed from above with respect to the central portion of the metal separator unit following FIG. 11.
  • FIG. 11 is an end view showing a state in which the pressing member is pressed from above with respect to the central portion of the metal separator unit following FIG. 11.
  • FIG. 13 is an end view showing a state in which the upper clamping member is urged from above with respect to the outer peripheral edge of the metal separator unit following FIG. 12.
  • FIG. 14 is an end view showing a state in which the outer peripheral edge of the metal separator unit is welded by a laser oscillator following FIG. 13.
  • FIG. 1 to FIG. 14 an arrow composed of X, Y, and Z is shown.
  • An arrow represented by X indicates a short direction X of a thin plate member (for example, a metal separator).
  • the arrow represented by Y indicates the longitudinal direction Y of the metal separator.
  • the arrow indicated by Z indicates the stacking direction Z of the metal separator.
  • the sizes and ratios of the members in the drawings are exaggerated for convenience of explanation and may be different from the actual sizes and ratios.
  • the thin plate member will be described as an anode side metal separator 11 and a cathode side metal separator 12 as an example.
  • the anode-side metal separator 11 and the cathode-side metal separator 12 are joined to each other at the outer peripheral edge by the joining device 100 to constitute the metal separator unit 10.
  • the joining apparatus 100 includes a control unit 130 in addition to the holding unit 110 and the joining unit 120.
  • the holding unit 110 corresponds to an example of a configuration that embodies the holding process.
  • the joining unit 120 corresponds to an example of a configuration that embodies a joining process.
  • the bonding method will be described in order for each component of the bonding apparatus 100.
  • FIG. 1 is a perspective view showing a joining device 100 for a thin plate member (for example, a metal separator unit 10 comprising an anode side metal separator 11 and a cathode side metal separator 12).
  • FIG. 2 is an end view schematically showing a part of the bonding apparatus 100 of FIG.
  • the holding unit 110 holds one thin plate member (anode side metal separator 11) and another thin plate member (cathode side metal separator 12) in a stacked state.
  • the holding unit 110 includes a first holding unit (supporting member 111), a clamping unit (a lower clamping member 112 and an upper clamping member 113), and a movable positioning pin 115 (a positioning member). It has. Further, the holding unit 110 includes a positioning pin 114, a pressing plate 116 (pressing member), a movable plate 117, a spring 118, and a fixed pin 119 (fixing member).
  • a pressing plate 116 pressing member
  • a movable plate 117 a spring 118
  • fixing member fixing member
  • a first end portion 11m positioned along the outer peripheral edge 11g of the anode side metal separator 11 and a outer peripheral edge 12g of the cathode side metal separator 12 are positioned by the support member 111 and the outer peripheral edge holding member 113P of the upper holding member 113.
  • the first end portion 12m is clamped along the stacking direction Z.
  • the support member 111 is made of metal, is formed in a rectangular shape, and includes an opening that accommodates the lower holding member 112 in a separated state.
  • the support member 111 may be integrally formed so as to be joined to the lower holding member 112 at the lower portion.
  • the outer periphery clamping member 113P is made of metal and has a rectangular shape.
  • the outer periphery clamping member 113P has a frame shape with a large opening at the central portion, and is formed so that the central portion 10t of the metal separator unit 10 is exposed.
  • the outer periphery holding member 113P is disposed to face the outer periphery of the lower holding member 112.
  • the outer periphery holding member 113P includes a plurality of through holes 113a through which the fixing pins 119 are inserted.
  • the second end 11n positioned inward of the first end 11m of the anode side metal separator 11 and the cathode side metal separator 12 The second end portion 12n positioned inward of the first end portion 12m is sandwiched along the stacking direction Z.
  • the lower clamping member 112 is made of metal and has a rectangular parallelepiped shape. The lower clamping member 112 is accommodated in the opening of the support member 111. The height of the lower clamping member 112 along the stacking direction Z is equal to the height of the support member 111.
  • the lower clamping member 112 includes screw holes 112a for screwing the fixing pins 119 on both sides along the longitudinal direction Y thereof.
  • the inner periphery clamping member 113Q is made of metal and is formed in a rectangular shape.
  • the inner peripheral edge clamping member 113Q is formed to be slightly larger than the manifold holes formed at the four corners of the metal separator unit 10.
  • the four inner peripheral edge clamping members 113Q independently cover the manifold holes at the four corners of the metal separator unit 10 respectively.
  • the inner peripheral edge clamping member 113Q includes one through hole 113a through which the fixing pin 119 is inserted.
  • the positioning member (positioning pin 114) is erected on the left side of the lower clamping member 112 in FIG.
  • the positioning pin 114 is fitted in a state where the positioning hole 10c of the metal separator unit 10 is inserted.
  • the positioning member (movable positioning pin 115) is positioned in contact with the anode side metal separator 11 and the cathode side metal separator 12 from the side crossing the stacking direction Z.
  • the movable positioning pin 115 is disposed so as to be freely accessible and away from the side surface of the anode side metal separator 11 and the side surface of the cathode side metal separator 12.
  • the movable positioning pin 115 is erected so as to be movable to the right of the lower clamping member 112 in FIG.
  • the movable positioning pin 115 moves along the longitudinal direction Y and fits into the positioning hole 10 d of the metal separator unit 10.
  • the metal separator unit 10 is positioned by the positioning pin 114 and the movable positioning pin 115.
  • the pressing member presses the central portion (active area) of the anode side metal separator 11 and the central portion (active area) of the cathode side metal separator 12 along the stacking direction Z.
  • the pressing plate 116 includes a plurality of through grooves 116 h for allowing the laser light L ⁇ b> 1 of the laser oscillator 121 to pass therethrough.
  • the push plate 116 has insertion holes 116b at four corners, and allows the inner peripheral edge clamping member 113Q to be inserted therethrough.
  • the pressing by the pressing plate 116 is performed before the lower clamping member 112 and the upper clamping member 113 clamp the second end portion 11n of the anode side metal separator 11 and the second end portion 12n of the cathode side metal separator 12.
  • the pressing plate 116 is made of, for example, metal and is formed in a rectangular shape.
  • a movable plate 117 is provided below the push plate 116.
  • the movable plate 117 is movable up and down along the stacking direction Z by a spring 118 provided below.
  • the movable plate 117 and the spring 118 are accommodated in the lower clamping member 112.
  • the fixing member temporarily fixes the anode side metal separator 11 and the cathode side metal separator 12 via the lower holding member 112 and the upper holding member 113.
  • the fixing pins 119 are respectively inserted into the through holes 113a opened in the upper clamping member 113 (the outer peripheral clamping member 113P and the inner peripheral clamping member 113Q), and screwed into the screw holes 112a opened in the lower clamping member 112, respectively.
  • the fixing member uses a retractable clamping mechanism.
  • the fixing pin 119 is inserted into the upper holding member 113 (the outer peripheral holding member 113P and the inner peripheral holding member 113Q) and the lower holding member 112, and is inserted into an actuator provided at the lower part of the lower holding member 112.
  • the fixing pin 119 is automatically fixed by the actuator.
  • the operator handles the fixing pin 119 without requiring a special tool. Therefore, even when the fixing operation is repeated a plurality of times, the upper clamping member 113 and the lower clamping member 112 can always be reliably fixed with a constant stress.
  • the fixing member may be a tightening clamp mechanism using a nut runner. In this case, the nut can be easily fixed to the thread groove of the lower clamping member 112, and the holding force can be made constant.
  • the discharge unit discharges and discharges gas to the dust generated from the joint portion with the laser beam L1 through the exhaust hole 112h provided in the lower holding member 112 and the exhaust hole 113h provided in the upper holding member 113, Or suck and discharge dust.
  • an inert gas such as nitrogen (N) or argon (Ar), dry air, or assist gas such as air is injected through the exhaust hole 112h and the exhaust hole 113h, and the laser is discharged to the outside while discharging the dust.
  • the ambient atmosphere irradiated with the light L1 is stabilized.
  • the support member 211, the lower clamping member 112, and the upper clamping member 113 are coated with a material M that inhibits the adhesion of dust generated from the joint portion with welding by the laser beam L ⁇ b> 1.
  • a material M a material having heat resistance, wear resistance, or slipperiness is used.
  • the joining portion 120 joins at least the annular joining portion (outer peripheral edge 11g) provided in the anode side metal separator 11 and the annular joining portion (outer peripheral edge 12g) provided in the cathode side metal separator 12.
  • the junction 120 includes a laser oscillator 121, a reflection mirror 122, and a drive stage 123, as shown in FIG.
  • the laser oscillator 121 irradiates the outer peripheral edge 11g of the anode-side metal separator 11 or the outer peripheral edge 12g of the cathode-side metal separator 12 with laser light L1, and thereby the outer peripheral edge 11g of the anode-side metal separator 11 and the cathode-side metal separator 12 are irradiated.
  • the part to be welded by irradiating the laser beam L1 is a part located between the first end 10m and the second end 10n in the outer peripheral edge 10g of the metal separator unit 10.
  • the reflection mirror 122 reflects the laser beam L1 derived from the laser oscillator 121 along the longitudinal direction Y and folds it downward in the stacking direction Z.
  • the drive stage 123 corresponds to, for example, a biaxial rectilinear stage.
  • the drive stage 123 scans the holding unit 110 in the short direction X and the long direction Y in order to weld the outer peripheral edge 10g of the metal separator unit 10 in an annular shape with the laser beam L1 whose irradiation position is fixed.
  • the pair of reflection mirrors 122 may scan the laser light L1 along the short direction X and the long direction Y, and weld the outer peripheral edge 10g of the metal separator unit 10 in an annular shape without using the drive stage 123. .
  • the control unit 130 controls the holding unit 110 and the joining unit 120, respectively.
  • the control unit 130 includes a controller 131 as shown in FIG.
  • the controller 131 includes a ROM, a CPU, and a RAM.
  • a ROM Read Only Memory stores a control program related to the bonding apparatus 100.
  • the control program controls the upper clamping member 113 (the outer peripheral clamping member 113P and the inner peripheral clamping member 113Q) of the holding unit 110, the movable positioning pin 115 and the pressing plate 116, and the laser oscillator 121 and the drive stage 123 of the joint 120. Includes things about.
  • a CPU Central Processing Unit
  • a RAM Random Access Memory
  • FIG. 3 is an end view showing a state in which the metal separator unit 10 is placed on the holding unit 110 of the joining apparatus 100 shown in FIGS. 1 and 2.
  • FIG. 3 is an end view showing a state in which the positioning member (movable positioning pin 115) is inserted into the positioning hole 10d on the side surface of the metal separator unit 10 following FIG.
  • FIG. 5 is an end view showing a state in which the pressing member (the pressing plate 116) is pressed from above with respect to the central portion 10t of the metal separator unit 10 following FIG.
  • FIG. 6 is an end view showing a state in which the upper clamping member 113 is urged from above with respect to the outer peripheral edge 10g of the metal separator unit 10 following FIG.
  • FIG. 7 is an end view showing a state in which the outer peripheral edge 10 g of the metal separator unit 10 is welded by the laser oscillator 121 following FIG. 6.
  • the metal separator unit 10 is lowered along the stacking direction Z and placed on the movable plate 117 or the like of the holding unit 110.
  • the metal separator unit 10 includes an anode side metal separator 11 and a cathode side metal separator 12.
  • the positioning member (positioning pin 114) erected to the left in FIG. 1 of the lower clamping member 112 is fitted in a state of being inserted into the positioning hole 10c on the left side of the metal separator unit 10 in the drawing.
  • the metal separator unit 10 is conveyed automatically by a robot hand or the like, or manually by an operator.
  • the positioning member (movable positioning pin 115) is inserted from the side into the positioning hole 10d on the right side of FIG. To fit.
  • the metal separator unit 10 is positioned by the positioning pin 114 and the movable positioning pin 115.
  • the anode-side metal separator 11 and the cathode-side metal separator 12 are aligned at the ends and the like.
  • the movable positioning pin 115 itself moves along the longitudinal direction Y so as to relieve the stress.
  • the pressing member (pressing plate 116) is slightly lowered while pressing against the central portion 10 t of the metal separator unit 10 from above.
  • the stress applied to the metal separator unit 10 by the pressing plate 116 is alleviated by the downward movement of the movable plate 117 on which the metal separator unit 10 is placed.
  • a central portion 10t of the metal separator unit 10 corresponds to an active area region. Since the active area is formed by forming a plurality of fine uneven shapes along the longitudinal direction Y, it is difficult to keep the shape constant. That is, the active area is often distorted.
  • the pressing plate 116 presses against the active area of the central portion 10 t of the metal separator unit 10 to remove the distortion.
  • the movable positioning pin 115 moves so as to retreat so as to relieve the stress. That is, the metal separator unit 10 is positioned by the positioning pin 114 and the movable positioning pin 115 in a state where the distortion of the active area is removed.
  • the upper clamping member 113 (the outer circumferential edge clamping member 113P and the inner circumferential edge clamping member 113Q) is attached to the outer circumferential edge 10g and the manifold hole of the metal separator unit 10 from above from the state shown in FIG. Rush.
  • the first end portion 10m is clamped by the support member 111 and the outer periphery clamping member 113P.
  • the second end 10n is clamped by the lower clamping member 112 and the inner peripheral clamping member 113Q.
  • the supporting member 111 and the outer peripheral holding member 113P, and the lower holding member 112 and the inner peripheral holding member 113Q are fixed by the fixing members (fixing pins 119), respectively.
  • the position of the metal separator unit 10 including the anode side metal separator 11 and the cathode side metal separator 12 is forcibly fixed. That is, the anode side metal separator 11 and the cathode side metal separator 12 are not displaced from each other in the positions of the outer peripheral edge, the manifold hole, the active area, and the like.
  • the drive stage shown in FIG. 1 is continued from the state of FIG. 6 while irradiating the outer peripheral edge 10 g of the metal separator unit 10 with laser light L1 from the laser oscillator 121 at the joint 120. 123 is scanned in the lateral direction X and the longitudinal direction Y, and the outer peripheral edge 10g of the metal separator unit 10 is welded in an annular shape.
  • the part to be joined by irradiating the laser beam L1 is a part located between the first end 10m and the second end 10n in the outer peripheral edge 10g of the metal separator unit 10. As shown in FIG.
  • nitrogen dust is generated from the joint portion by welding with the laser beam L ⁇ b> 1 through the exhaust holes 112 h provided in the lower holding member 112 and the exhaust holes 113 h provided in the upper holding member 113.
  • An inert gas such as (N) or argon (Ar), dry air, air or the like is jetted, and the dust is discharged.
  • the laser oscillator 121 irradiates and welds the laser light L1 to the active area of the central portion 10t of the metal separator unit 10 through the through groove 116h of the push plate 116.
  • the portions in contact with each other are partially joined along the longitudinal direction Y. If it joins in this way, it will be easy to maintain the active area of the metal separator unit 10 flat. Further, even when a cooling medium is circulated in the active area of the metal separator unit 10, the gap between the anode side metal separator 11 and the cathode side metal separator 12 can be prevented from expanding.
  • the inner peripheral edge of the manifold hole of the metal separator unit 10 can be irradiated with laser light L1 through a gap between the outer peripheral edge holding member 113P and the inner peripheral edge holding member 113Q, and the inner peripheral edge can be joined in an annular shape.
  • the thin plate member joining apparatus 100 includes a holding part 110 and a joining part 120.
  • the holding unit 110 holds one thin plate member (anode side metal separator 11) and another thin plate member (cathode side metal separator 12) in a stacked state.
  • the joint 120 joins at least the annular joint portion (the outer peripheral edge 11g) provided in the anode side metal separator 11 and the annular joint portion (the outer peripheral edge 12g) provided in the cathode side metal separator 12.
  • the holding unit includes a first holding unit and a second holding unit.
  • the first holding portion includes a first end portion 11m located along the joining portion of the anode side metal separator 11 and a first end portion located along the joining portion of the cathode side metal separator 12 along the stacking direction Z.
  • the second holding portion is a second end portion 11n positioned inward from the first end portion 11m of the anode side metal separator 11 and a second end portion positioned inward from the first end portion 12m of the cathode side metal separator 12. The two end portions 12n are sandwiched and held along the stacking direction Z.
  • the thin plate-like member joining method includes a holding step and a joining step.
  • the holding step includes a first end portion 11m positioned along the annular joint portion (outer peripheral edge 11g) provided in the anode side metal separator 11, and an annular joint portion (outer peripheral edge 11g) provided in the cathode side metal separator 12.
  • the first end portion 12m located along the stacking direction Z is held.
  • the holding step includes a second end portion 11n positioned inward from the first end portion 11m of the anode side metal separator 11 and a first end portion 12m positioned inward from the first end portion 12m of the cathode side metal separator 12.
  • the two end portions 12n are sandwiched and held along the stacking direction Z.
  • the joining step at least the annular joining part (outer peripheral edge 11g) provided in the anode side metal separator 11 and the annular joining part (outer peripheral edge 12g) provided in the cathode side metal separator 12 are joined together.
  • the joining apparatus 100 and the joining method hold the first ends of the anode-side metal separator 11 and the cathode-side metal separator 12 in an annular shape, and the anode-side metal separator 11 and the cathode-side metal.
  • the second ends of the separators 12 are joined together in a state where the second ends are held in an annular shape. That is, when the anode-side metal separator 11 and the cathode-side metal separator 12 are joined in an annular shape, the joining portion can be sufficiently held from the outside and the inside while removing warping and distortion. Therefore, the joining apparatus 100 and the joining method can prevent joining failure when the anode side metal separator 11 and the cathode side metal separator 12 are stacked and joined in an annular shape.
  • the first holding part can be configured to sandwich the first end part 11m of the anode side metal separator 11 and the first end part 12m of the cathode side metal separator 12 along the stacking direction.
  • the holding unit 110 includes a positioning member (movable positioning pin 115) that contacts and positions the anode side metal separator 11 and the cathode side metal separator 12 from the side intersecting the stacking direction Z.
  • the positioning member (movable positioning pin 115) is disposed so as to be able to approach and separate from the side surface of the anode-side metal separator 11 and the side surface of the cathode-side metal separator 12.
  • the joining apparatus 100 eliminates the positioning error when laminating thin plate-like members such as the metal separator unit 10 including the anode side metal separator 11 and the cathode side metal separator 12 and joining them in an annular shape. In addition, highly reliable joining can be performed. Furthermore, by making the movable positioning pin 115 approach and separate, deformation of the metal separator unit 10 during extraction can be suppressed.
  • the joining of the metal separator unit 10 can be carried out continuously in one process, the equipment required for joining the metal separator unit 10 is simplified compared to the case where the joining is carried out intermittently through a plurality of different processes. And man-hours required for the joining can be reduced.
  • the holding method of holding unit 110 using fixing pin 119 is a pull-in method using a spring or an axial force fastening mechanism using a nut runner, even if electric power from the outside is temporarily or continuously interrupted, the holding unit A certain holding force can be maintained without being affected by 110.
  • the holding unit 110 is configured so that the lower holding member 112 and the upper holding member 113 hold the anode-side metal before holding the second end 11n of the anode-side metal separator 11 and the second end 12n of the cathode-side metal separator 12.
  • a configuration in which a pressing member (pressing plate 116) that presses the central portion (active area) of the separator 11 and the central portion (active area) of the cathode-side metal separator 12 along the stacking direction Z can be employed.
  • the pressing plate 116 can sufficiently remove the distortion of the central portion 10t of the metal separator unit 10.
  • the pressing plate 116 can remove distortion very effectively, particularly when the central portion 10t of the metal separator unit 10 corresponds to an active area region. That is, since the active area is generally formed by forming a plurality of fine uneven shapes along the longitudinal direction Y, it is difficult to keep the shape constant and is often distorted. .
  • the pressing plate 116 can press against such an active area and sufficiently remove the distortion. It is good also as a structure which presses a manifold hole with the press plate 116, and removes curvature and distortion.
  • the holding part 110 includes a fixing member (fixing pin 119) for temporarily fixing the anode side metal separator 11 and the cathode side metal separator 12 via at least either the lower holding member 112 or the upper holding member 113.
  • a fixing member fixing pin 119
  • the fixing member for example, a retractable clamping mechanism can be used.
  • a fixing pin 119 is automatically fixed by the actuator. The operator can handle the fixing pin 119 without requiring a special tool. Therefore, even when the fixing operation of the anode-side metal separator 11 and the cathode-side metal separator 12 is repeated a plurality of times, the anode-side metal separator 11 and the cathode-side metal separator 12 can always be reliably fixed with a constant stress.
  • the fixing member may be a tightening clamp mechanism using a nut runner. If a nut runner is used, it can be easily fixed to the thread groove of the lower clamping member 112 and the holding force can be made constant.
  • the joint 120 irradiates the outer peripheral edge 11g of the anode-side metal separator 11 or the outer peripheral edge 12g of the cathode-side metal separator 12 with laser light L1, so that the outer peripheral edge 11g of the anode-side metal separator 11 and the cathode-side metal separator 12 are irradiated.
  • a laser oscillator 121 that welds the outer peripheral edges 12g of each other can be used.
  • the laser beam L1 can easily prevent interference with the constituent members of the holding unit 110. Furthermore, the laser beam L1 can join a joining portion having an arbitrary shape, unlike a cutting blade having a fixed shape.
  • the holding unit 110 may be configured to include a discharge unit that discharges gas by discharging gas to the dust generated from the joint portion with welding by the laser beam L1 or sucks and discharges dust.
  • dust related to sputtering generated when the metal separator unit 10 is joined can be quickly discharged from the holding unit 110. Therefore, it is possible to prevent the dust from adhering to and contaminating the metal separator unit 10 in a state where the dust stays in the holding unit 110. Furthermore, since dust does not accumulate in the holding part 110, it is possible to prevent the laser light L1 from being shielded by dust and missing the joining region. Furthermore, the surrounding atmosphere where the laser beam L1 is irradiated can be stabilized.
  • the holding part 110 can be configured to be coated with a material M that obstructs the adhesion of dust generated from the joint portion with welding by the laser beam L1.
  • the holding unit 110 may be configured to hold an anode side metal separator 11 made of an anode side metal separator and a cathode side metal separator 12 made of a cathode side metal separator.
  • Such a configuration is particularly applicable to metal separators that are thin and easily distorted and that require strong bonding so that the medium does not leak.
  • the joint 120 is configured to join the outer peripheral edge of the metal separator (the metal separator unit 10 including the anode-side metal separator 11 and the cathode-side metal separator 12), the periphery of the manifold hole, or the joining portion of the active area. be able to.
  • a member having a thin layer thickness that is easily distorted such as a metal separator, which has a wide variety of joining points, and easily expands when the medium is circulated therein. Even if it is a member, those junction parts can fully be joined.
  • the joining apparatus 200 has a configuration in which the first separator 10m to the second end 10n of the metal separator unit 10 are joined at least in a state of being elastically deformed, according to the first embodiment described above. Different from the configuration of the bonding apparatus 100.
  • the same reference numerals are used for components having the same configuration as in the first embodiment described above, and the above description is omitted.
  • FIG. 8 is a perspective view showing a joining device 200 for a thin plate member (for example, a metal separator unit 10 including an anode side metal separator 11 and a cathode side metal separator 12).
  • FIG. 9 is an end view schematically showing a part of the bonding apparatus 200 of FIG.
  • the holding unit 210 holds one thin plate member (anode side metal separator 11) and another thin plate member (cathode side metal separator 12) in a stacked state.
  • the holding unit 210 includes a first holding unit (supporting member 211), a clamping unit (the lower clamping member 112 and the upper clamping member 213), and an adjustment unit. Further, the holding unit 210 includes a positioning pin 114, a movable positioning pin 115 (positioning member), a pressing plate 216 (pressing member), a movable plate 117, a spring 118, and a fixed pin 119 (fixing member). .
  • maintenance part 210 is demonstrated in order.
  • the support member 211 has a first end portion 11m positioned along the outer peripheral edge 11g of the anode side metal separator 11 and a first end portion 12m positioned along the outer peripheral edge 12g of the cathode side metal separator 12 in the stacking direction Z. Support from one side along.
  • the support member 211 is made of metal, is formed in a rectangular shape, and includes an opening that accommodates the lower holding member 112 in a separated state.
  • the support member 211 may be integrally formed so as to be joined to the lower holding member 112 at the lower portion.
  • the lower clamping member 112 and the upper clamping member 213 include a second end portion 11n positioned inward of the first end portion 11m of the anode side metal separator 11 and an inner side of the first end portion 12m of the cathode side metal separator 12.
  • the second end 12n positioned in the direction is sandwiched along the stacking direction Z.
  • the lower clamping member 112 is made of metal and has a rectangular parallelepiped shape.
  • the lower clamping member 112 is accommodated in the opening of the support member 211.
  • the height H1 along the stacking direction Z of the lower clamping member 112 is slightly lower than the height H2 of the support member 211.
  • the lower clamping member 112 includes screw holes 112a for screwing the fixing pins 119 on both sides along the longitudinal direction Y thereof.
  • the upper clamping member 213 is made of metal, for example, and has a rectangular shape.
  • the upper clamping member 213 is disposed to face the lower clamping member 112.
  • the upper clamping member 213 is a guide hole that annularly surrounds a joint portion located inward of the outer peripheral edge 11g of the anode side metal separator 11 and a joint portion located inward of the outer peripheral edge 12g of the cathode side metal separator 12. 213b.
  • the upper clamping member 213 is formed so that the central portion is opened largely and the central portion 10t of the metal separator unit 10 is exposed.
  • the upper clamping member 213 includes through holes 213a through which the fixing pins 119 are inserted at both ends along the longitudinal direction Y thereof.
  • the adjustment unit includes a position where the support member 211 supports the anode-side metal separator 11 and the cathode-side metal separator 12, and a position where the lower holding member 112 and the upper holding member 213 hold the anode-side metal separator 11 and the cathode-side metal separator 12. Are different along the stacking direction Z.
  • the adjusting unit has the supporting member 211, the lower holding member 112, and The upper clamping member 213 itself corresponds to the adjustment unit.
  • the adjustment unit can be configured as follows. That is, in the stage where the metal separator unit 10 is placed, the lower clamping member 112 has the same height along the stacking direction Z as the support member 211 or higher than the support member 211 along the stacking direction Z. Keep it. Next, the upper holding member 213 is lowered along the stacking direction Z, and the metal separator unit 10 is held by the lower holding member 112 and the upper holding member 213. Next, the support member 211 is raised along the stacking direction Z, and the support member 211 is pressed against the outer peripheral edge 10 g of the metal separator unit 10.
  • the adjustment unit When the adjustment unit is configured in this way, when the outer peripheral edge 10g of the metal separator unit 10 is pressed by the support member 211, the inside of the metal separator unit 10 held by the lower holding member 112 and the upper holding member 213 is Not affected by external forces. Further, after the metal separator unit 10 is sandwiched between the lower sandwiching member 112 and the upper sandwiching member 213, the lower sandwiching member 112 and the upper sandwiching member 213 are lowered along the stacking direction Z, so that the support member 211 is moved to the metal separator unit. You may press against 10 outer periphery 10g.
  • FIG. 10 is an end view showing a state in which the metal separator unit 10 is placed on the holding unit 210 of the joining apparatus 200 of FIGS. 8 and 9.
  • FIG. 11 is an end view showing a state in which the positioning member (movable positioning pin 115) is inserted into the positioning hole 10d on the side surface of the metal separator unit 10 following FIG.
  • FIG. 12 is an end view showing a state in which the pressing member (the pressing plate 216) is pressed from above with respect to the central portion 10t of the metal separator unit 10 following FIG.
  • the metal separator unit 10 is lowered along the stacking direction Z and placed on the movable plate 117 or the like of the holding unit 210.
  • the positioning member (positioning pin 114) erected on the left side of FIG. 8 of the lower clamping member 112 is fitted in a state of being inserted into the positioning hole 10c on the left side of the metal separator unit 10 in the figure.
  • the positioning member (movable positioning pin 115) is inserted from the side into the positioning hole 10d on the right side of FIG. 8 of the metal separator unit 10 from the state of FIG. To fit.
  • the metal separator unit 10 is positioned by the positioning pin 114 and the movable positioning pin 115.
  • the anode-side metal separator 11 and the cathode-side metal separator 12 are aligned at the ends and the like.
  • the pressing member (pressing plate 216) is lowered slightly while pressing from the upper side against the central portion 10 t of the metal separator unit 10 continuously from the state of FIG. 11.
  • the stress applied to the metal separator unit 10 by the pressing plate 216 is alleviated by the downward movement of the movable plate 117 on which the metal separator unit 10 is placed.
  • a central portion 10t of the metal separator unit 10 corresponds to an active area region.
  • the pressing plate 216 presses against the active area of the central portion 10 t of the metal separator unit 10 to remove the distortion.
  • the upper clamping member 213 urges the outer peripheral edge 10g of the metal separator unit 10 from above from the state shown in FIG. In this state, the lower end member 112 and the upper end member 213 hold the second end portion 10n. Furthermore, the upper clamping member 213 and the lower clamping member 112 are fixed by a fixing member (fixing pin 119). The position of the metal separator unit 10 including the anode side metal separator 11 and the cathode side metal separator 12 is forcibly fixed.
  • the support member 211 supports the first end portion 11m of the anode side metal separator 11 and the first end portion 12m of the cathode side metal separator 12 along the stacking direction Z.
  • the lower clamping member 112 and the upper clamping member 213 include a second end portion 11n positioned inward of the first end portion 11m of the anode side metal separator 11 and an inner side of the first end portion 12m of the cathode side metal separator 12. The second end 12n positioned in the direction is sandwiched along the stacking direction.
  • the part to be joined by irradiating the laser beam L1 is, for example, a part located between the first end part 10m and the second end part 10n in the outer peripheral edge 10g of the metal separator unit 10.
  • the gap (lateral width) along the longitudinal direction Y of the support member 211 and the lower holding member 112 is narrow, and the difference in height along the stacking direction Z of the support member 211 and the lower holding member 112 is larger,
  • the metal separator unit 10 can be satisfactorily bonded by the laser beam L1.
  • nitrogen dust is generated from the joint portion by welding with the laser beam L ⁇ b> 1 through the exhaust holes 112 h provided in the lower holding member 112 and the exhaust holes 213 h provided in the upper holding member 213.
  • An inert gas such as (N) or argon (Ar), dry air, air or the like is jetted, and the dust is discharged.
  • the laser oscillator 121 irradiates and welds the laser light L1 to the active area of the central portion 10t of the metal separator unit 10 through the through groove 216h of the push plate 216.
  • the portions in contact with each other are partially joined along the longitudinal direction Y. It is also possible to irradiate the inner peripheral edge of the manifold hole of the metal separator unit 10 along the inner periphery of the guide hole 213b of the upper clamping member 213 with laser light L1, and join the inner peripheral edge in an annular shape.
  • the first holding part supports the first end part 11m of the anode side metal separator 11 and the first end part 12m of the cathode side metal separator 12 from one side along the stacking direction Z.
  • the holding unit further includes an adjustment unit.
  • the adjustment unit includes a position where the support member 211 supports the anode-side metal separator 11 and the cathode-side metal separator 12, and a position where the lower holding member 112 and the upper holding member 213 hold the anode-side metal separator 11 and the cathode-side metal separator 12. Are different along the stacking direction Z.
  • the first holding portion supports the first end portion 11m and the like of the anode side metal separator 11 from only one side along the stacking direction Z, and thus is positioned on the other side. Can be fully opened. Therefore, it is possible to easily discharge the dust generated with the joining to the outside. That is, it is possible to prevent a bonding failure from occurring due to the accumulation of dust at the bonding site. Furthermore, since a sufficient open space can be secured, the cutting member can be prevented from interfering with surrounding structures.
  • the joining apparatus 200 eliminates the influence of distortion when laminating thin plate-like members such as the metal separator unit 10 including the anode side metal separator 11 and the cathode side metal separator 12 and joining them in an annular shape. Can perform very reliable bonding.
  • the joining of the metal separator unit 10 can be carried out continuously in one process, the equipment required for joining the metal separator unit 10 is simplified compared to the case where the joining is carried out intermittently through a plurality of different processes. And man-hours required for the joining can be reduced.
  • the configuration in which two thin plate-like members are joined has been described, but the configuration is not limited to such a configuration. It is good also as a structure which joins 3 or more thin plate-shaped members.
  • the configuration has been described in which the outer peripheral edges of two thin plate-like members having similar shapes are joined, but the present invention is not limited to such a configuration.
  • it is good also as a structure which joins the outer periphery of the thin plate-shaped member from which an internal shape differs completely.
  • the outer peripheral edges of the thin plate-like members have been described as being temporarily elastically deformed and joined, but the present invention is not limited to such a configuration.
  • the outer peripheral edges of the thin plate members may be plastically deformed and joined.
  • 10 Metal separator unit 11 Anode side metal separator (thin plate member), 12 Cathode side metal separator (thin plate member), 10c, 10d positioning holes, 10g outer periphery (joining part), 10m first end, 10n second end, 10t center, 11g, 12g outer periphery, 11m, 12m first end, 11n, 12n second end, 100,200 joining device, 110, 210 holding part, 111, 211 support members, 112 Lower clamping member, 112a screw hole, 112h exhaust hole, 113,213 upper clamping member, 113P outer periphery clamping member, 113Q inner periphery clamping member, 113a, 213a through hole, 213b guide holes, 113h, 213h exhaust holes, 114 Positioning pin, 115 movable positioning pin (positioning member), 116, 216 pressing plate (pressing member), 116b insertion hole, 116h, 216h through groove, 117 movable plate, 118 Spring,

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Plasma & Fusion (AREA)
  • Laser Beam Processing (AREA)
  • Fuel Cell (AREA)

Abstract

L'invention porte sur un dispositif pour lier des éléments en forme de plaque mince, ledit dispositif pouvant éliminer une défaillance de liaison au moment de la liaison annulaire des éléments en forme de plaque mince entre eux par stratification des éléments en forme de plaque mince. Un dispositif (100) pour relier des éléments en forme de plaque mince possède une section de support (110) et une section de liaison (120). La section de support porte un élément en forme de plaque mince et un autre élément en forme de plaque mince dans un état stratifié. La section de liaison lie entre elles au moins une partie de liaison annulaire qui est située sur le premier élément en forme de plaque mince et une partie de liaison annulaire qui est située sur l'autre élément en forme de plaque mince. La section de support est pourvue d'une première section de support et d'une seconde section de support. La première section de support porte, dans la direction de stratification, une première section d'extrémité du premier élément en forme de plaque mince, ladite première section d'extrémité étant positionnée le long de la partie de liaison du premier élément en forme de plaque mince, et une première section d'extrémité de l'autre élément en forme de plaque mince, ladite première section d'extrémité étant positionnée le long de la partie de liaison de l'autre élément en forme de plaque mince. La seconde section de support prend en sandwich et porte, dans la direction de stratification, une seconde section d'extrémité du premier élément en forme de plaque mince, ladite seconde section d'extrémité étant positionnée davantage vers l'intérieur que la première section d'extrémité du premier élément en forme de plaque mince, et une seconde section d'extrémité de l'autre élément en forme de plaque mince, ladite seconde section d'extrémité étant positionnée davantage à l'intérieur que la première section d'extrémité de l'autre élément en forme de plaque mince.
PCT/JP2014/067446 2014-06-30 2014-06-30 Dispositif et procédé pour lier des éléments en forme de plaque mince WO2016001992A1 (fr)

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PCT/JP2014/067446 WO2016001992A1 (fr) 2014-06-30 2014-06-30 Dispositif et procédé pour lier des éléments en forme de plaque mince
JP2016530715A JP6187695B2 (ja) 2014-06-30 2014-06-30 薄板状部材の接合装置および薄板状部材の接合方法

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017204385A (ja) * 2016-05-11 2017-11-16 日産自動車株式会社 セパレータの組立て装置およびセパレータの組立て方法
JP2020026535A (ja) * 2018-08-09 2020-02-20 マクセルホールディングス株式会社 蒸着マスクおよびその製造方法
JP2020510534A (ja) * 2017-02-16 2020-04-09 レインツ デッチタングス ゲー エム ベー ハー 冷却板およびその製造方法
CN111496378A (zh) * 2018-12-26 2020-08-07 丰田自动车株式会社 焊接装置以及焊接方法
WO2020184275A1 (fr) * 2019-03-12 2020-09-17 Nok株式会社 Dispositif de gabarit de soudage et procédé de production pour composant
WO2020184276A1 (fr) * 2019-03-12 2020-09-17 Nok株式会社 Dispositif de gabarit de soudage et son procédé de production pour composant
CN114178722A (zh) * 2021-12-06 2022-03-15 河北光兴半导体技术有限公司 双极板焊接夹具、激光焊接装置和双极板焊接方法
WO2022107445A1 (fr) * 2020-11-18 2022-05-27 Nok株式会社 Dispositif de gabarit de soudage

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002028796A (ja) * 2000-07-14 2002-01-29 Fujitsu Ltd レーザスポット溶接装置
JP2003311838A (ja) * 2002-04-23 2003-11-06 Aisan Ind Co Ltd レーザ溶着方法
JP2004358528A (ja) * 2003-06-05 2004-12-24 Keylex Corp レーザ溶接装置
JP2008103210A (ja) * 2006-10-19 2008-05-01 Honda Motor Co Ltd 燃料電池及び燃料電池スタック
JP2009064593A (ja) * 2007-09-04 2009-03-26 Nissan Motor Co Ltd 燃料電池用金属セパレータの溶接方法、および燃料電池用金属セパレータの溶接装置
JP2011161450A (ja) * 2010-02-04 2011-08-25 Honda Motor Co Ltd 溶接用治具装置及び溶接方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002028796A (ja) * 2000-07-14 2002-01-29 Fujitsu Ltd レーザスポット溶接装置
JP2003311838A (ja) * 2002-04-23 2003-11-06 Aisan Ind Co Ltd レーザ溶着方法
JP2004358528A (ja) * 2003-06-05 2004-12-24 Keylex Corp レーザ溶接装置
JP2008103210A (ja) * 2006-10-19 2008-05-01 Honda Motor Co Ltd 燃料電池及び燃料電池スタック
JP2009064593A (ja) * 2007-09-04 2009-03-26 Nissan Motor Co Ltd 燃料電池用金属セパレータの溶接方法、および燃料電池用金属セパレータの溶接装置
JP2011161450A (ja) * 2010-02-04 2011-08-25 Honda Motor Co Ltd 溶接用治具装置及び溶接方法

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017204385A (ja) * 2016-05-11 2017-11-16 日産自動車株式会社 セパレータの組立て装置およびセパレータの組立て方法
JP2020510534A (ja) * 2017-02-16 2020-04-09 レインツ デッチタングス ゲー エム ベー ハー 冷却板およびその製造方法
JP7118800B2 (ja) 2018-08-09 2022-08-16 マクセル株式会社 蒸着マスクおよびその製造方法
JP2020026535A (ja) * 2018-08-09 2020-02-20 マクセルホールディングス株式会社 蒸着マスクおよびその製造方法
JP7449339B2 (ja) 2018-08-09 2024-03-13 マクセル株式会社 位置決め用の治具
CN111496378A (zh) * 2018-12-26 2020-08-07 丰田自动车株式会社 焊接装置以及焊接方法
US11458569B2 (en) 2018-12-26 2022-10-04 Toyota Jidosha Kabushiki Kaisha Welding device and welding method
WO2020184275A1 (fr) * 2019-03-12 2020-09-17 Nok株式会社 Dispositif de gabarit de soudage et procédé de production pour composant
JPWO2020184275A1 (ja) * 2019-03-12 2021-11-04 Nok株式会社 溶接用治具装置、部品の製造方法
CN113329840B (zh) * 2019-03-12 2022-06-03 Nok株式会社 焊接用夹具装置、部件的制造方法
JPWO2020184276A1 (ja) * 2019-03-12 2021-10-28 Nok株式会社 溶接用治具装置、部品の製造方法
CN113329840A (zh) * 2019-03-12 2021-08-31 Nok株式会社 焊接用夹具装置、部件的制造方法
WO2020184276A1 (fr) * 2019-03-12 2020-09-17 Nok株式会社 Dispositif de gabarit de soudage et son procédé de production pour composant
WO2022107445A1 (fr) * 2020-11-18 2022-05-27 Nok株式会社 Dispositif de gabarit de soudage
JP7483046B2 (ja) 2020-11-18 2024-05-14 Nok株式会社 溶接用治具装置
CN114178722A (zh) * 2021-12-06 2022-03-15 河北光兴半导体技术有限公司 双极板焊接夹具、激光焊接装置和双极板焊接方法

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