JP2012148425A - Laser welding apparatus - Google Patents

Laser welding apparatus Download PDF

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Publication number
JP2012148425A
JP2012148425A JP2011006982A JP2011006982A JP2012148425A JP 2012148425 A JP2012148425 A JP 2012148425A JP 2011006982 A JP2011006982 A JP 2011006982A JP 2011006982 A JP2011006982 A JP 2011006982A JP 2012148425 A JP2012148425 A JP 2012148425A
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laser
laser welding
welding apparatus
load
individually
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Japanese (ja)
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Yoshinobu Izumi
善信 泉
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Keihin Corp
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Keihin Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1654—Laser beams characterised by the way of heating the interface scanning at least one of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8242—Pneumatic or hydraulic drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/92—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/924—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools
    • B29C66/9241—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power
    • B29C66/92451—Measuring or controlling the joining process by measuring or controlling the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force, the mechanical power or the displacement of the joining tools by controlling or regulating the pressure, the force or the mechanical power using joining tools having different pressure zones or using several joining tools with different pressures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Fluid Mechanics (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a laser welding apparatus capable of enhancing the welding strength of a transmitting material and an absorbing material.SOLUTION: In the laser welding apparatus A for welding the laser transmitting material W1 and the laser absorbing material W2 by irradiating the joined surface of both materials with a laser beam from the side of the transmitting material W1 in a state that both materials are superposed one upon another, a pressurization means 2 for applying pressure toward the joined surface from the surface of the transmitting material W1 in the state that both materials W1 and W2 are superposed one upon another is provided. The pressurization means 2 can individually adjust pressures corresponding to a plurality of the pressure places set to the surface of the transmitting material W1.

Description

本発明は、レーザ溶着装置に関し、特に、レーザを透過する透過材とレーザを吸収する吸収材とを重ね合わせた状態で透過材側から両部材の接合面にレーザを照射して両部材を溶着させるレーザ溶着装置に関する。  TECHNICAL FIELD The present invention relates to a laser welding apparatus, and in particular, welds both members by irradiating a laser onto a joining surface of both members from a transmitting material side in a state where a transmitting material that transmits laser and an absorbing material that absorbs laser are overlapped. The present invention relates to a laser welding apparatus.

下記特許文献１には、レーザを吸収する吸収性樹脂材料からなる被接合体の上に、レーザを透過する透過性樹脂材料からなる接合体を重ねて配置し、該接合体の直上から押圧治具によって押圧力を加えて接合体と被接合体を密着させた状態で、押圧治具の斜め側方から接合体と被接合体の接合面に向けてレーザを照射することにより、接合体と被接合体とを接着（溶着）させる技術が開示されている。   In Patent Document 1 below, a joined body made of a transparent resin material that transmits a laser is placed on a joined body made of an absorbent resin material that absorbs a laser, and pressed from above the joined body. By irradiating a laser from the oblique side of the pressing jig toward the joining surface of the joined body and the joined body in a state where the joined body and the joined body are brought into close contact with each other by applying a pressing force by the tool, the joined body and A technique for bonding (welding) an object to be bonded is disclosed.

特開２００３−２２５９４６号公報JP 2003-225946 A

上記特許文献１の技術では、接合体側或いは被接合体側の接合面に変形等が原因で平面度のバラツキが存在すると、押圧治具によって接合面の全面が均等に押圧されるが故に、平面度の精度が低い部分の密着度が低下し、その部分の溶着が不十分になる虞がある。   In the technique of the above-mentioned Patent Document 1, when there is a variation in flatness due to deformation or the like on the joined surface on the joined body side or the joined body side, the entire surface of the joined surface is evenly pressed by the pressing jig. There is a possibility that the degree of adhesion of the portion where the accuracy is low is lowered and the welding of the portion becomes insufficient.

本発明は上述した事情に鑑みてなされたものであり、透過材と吸収材との溶着強度の向上を実現可能なレーザ溶着装置を提供することを目的とする。    The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a laser welding apparatus capable of improving the welding strength between a transmission material and an absorbing material.

上記目的を達成するために、本発明では、レーザ溶着装置に係る第１の解決手段として、レーザを透過する透過材とレーザを吸収する吸収材とを重ね合わせた状態で前記透過材側から両部材の接合面にレーザを照射して両部材を溶着させるレーザ溶着装置において、前記透過材と前記吸収材とを重ね合わせた状態で透過材表面から前記接合面に向かって圧力を加える加圧手段を備え、前記加圧手段は、前記透過材表面に設定された複数の加圧箇所に応じて個別に圧力を調整可能であることを特徴とする。
このような特徴を有するレーザ溶着装置によれば、透過材と吸収材の接合面内の場所に応じて個別に加圧圧力を調整できるため、透過材側或いは吸収材側の接合面に変形等が原因で平面度のバラツキが存在する場合であっても、両部材の密着度を高いまま維持することができ、その結果、透過材と吸収材との溶着強度の向上を実現可能である。 In order to achieve the above object, according to the present invention, as a first solving means related to the laser welding apparatus, both the transmitting material side and the absorbing material absorbing the laser are overlapped from the transmitting material side. In a laser welding apparatus that welds both members by irradiating a laser to a joint surface of a member, a pressurizing unit that applies pressure from the surface of the transmissive material to the joint surface in a state where the permeable material and the absorbent material are overlapped The pressure means can adjust the pressure individually according to a plurality of pressure points set on the surface of the transmission material.
According to the laser welding apparatus having such a feature, the pressure can be adjusted individually according to the location in the bonding surface of the transmission material and the absorption material. Therefore, even if there is a variation in flatness, the adhesion between both members can be maintained high, and as a result, it is possible to improve the welding strength between the permeable material and the absorbent material.

また、本発明では、レーザ溶着装置に係る第２の解決手段として、上記第１の解決手段において、前記加圧手段は、前記透過材表面に設定された複数の加圧箇所のそれぞれに個別に接触する押圧部材と、前記押圧部材のそれぞれに個別に設けられ、該押圧部材に所定の荷重を印加する荷重印加機構とを備えることを特徴とする。
このような特徴を有するレーザ溶着装置によれば、透過材表面に設定された複数の加圧箇所に応じて個別に圧力を調整可能な加圧手段を簡単な構成で実現できる。 Further, in the present invention, as the second solving means relating to the laser welding apparatus, in the first solving means, the pressurizing means is individually provided for each of a plurality of pressurizing locations set on the surface of the transmission material. It is provided with the press member which contacts, and the load application mechanism which is provided in each of the said press member separately and applies a predetermined load to this press member, It is characterized by the above-mentioned.
According to the laser welding apparatus having such characteristics, it is possible to realize a pressurizing unit capable of individually adjusting the pressure according to a plurality of pressurization points set on the surface of the transmission material with a simple configuration.

また、本発明では、レーザ溶着装置に係る第３の解決手段として、上記第２の解決手段において、前記荷重印加機構によって前記押圧部材のそれぞれに個別に印加される荷重は、前記透過材側の接合面及び前記吸収材側の接合面の平面度に応じて設定されることを特徴とする。
このような特徴を有するレーザ溶着装置によれば、より透過材と吸収材との接触状態に適した加圧を行うことができるため、透過材と吸収材との溶着強度の向上に寄与する。 Further, in the present invention, as a third solving means related to the laser welding apparatus, in the second solving means, the load applied individually to each of the pressing members by the load applying mechanism is on the transmission material side. It is set according to the flatness of the joint surface and the joint surface on the absorbent material side.
According to the laser welding apparatus having such characteristics, it is possible to perform pressurization more suitable for the contact state between the transmission material and the absorption material, which contributes to improvement in the welding strength between the transmission material and the absorption material.

また、本発明では、レーザ溶着装置に係る第４の解決手段として、上記第２または第３の解決手段において、前記押圧部材のそれぞれは、前記透過材に対するレーザ照射の妨げとならないように形状設定されることを特徴とする。
このような特徴を有するレーザ溶着装置によれば、押圧部材を用いた場合でも透過材に対するレーザ照射を確実に行うことができるため、両部材の溶着強度の向上に寄与する。 Further, in the present invention, as a fourth solving means related to the laser welding apparatus, in the second or third solving means, each of the pressing members is set so as not to interfere with laser irradiation to the transmitting material. It is characterized by being.
According to the laser welding apparatus having such a feature, even when the pressing member is used, the laser irradiation can be reliably performed on the transmission material, which contributes to the improvement of the welding strength of both members.

また、本発明では、レーザ溶着装置に係る第５の解決手段として、上記第２〜第４のいずれか１つの解決手段において、前記透過材表面の加圧箇所は、前記押圧部材のそれぞれによって前記透過材の外周縁部が加圧されるように設定されることを特徴とする。
このような特徴を有するレーザ溶着装置によれば、特に外周縁部が大きく変形するような透過材と吸収材との密着度を高めて、両部材の溶着強度を高めることができる。 Further, in the present invention, as a fifth solving means related to the laser welding apparatus, in any one of the second to fourth solving means, the pressurizing portion on the surface of the transmission material may be changed by each of the pressing members. It is set so that the outer periphery part of a permeable material may be pressurized.
According to the laser welding apparatus having such a feature, it is possible to increase the adhesion strength between the two members by increasing the adhesion between the transmitting material and the absorbing material that particularly deforms the outer peripheral edge.

本発明に係るレーザ溶着装置によれば、透過材と吸収材との溶着強度の向上を実現することができる。  According to the laser welding apparatus according to the present invention, it is possible to improve the welding strength between the transmitting material and the absorbing material.

本実施形態に係るレーザ溶着装置Ａの構成概略図である。1 is a schematic configuration diagram of a laser welding apparatus A according to the present embodiment. レーザ溶着装置Ａを用いて透過材Ｗ１と吸収材Ｗ２を溶着させる手順を示すフローチャートである。It is a flowchart which shows the procedure of welding the permeable material W1 and the absorber W2 using the laser welding apparatus A. 透過材Ｗ１と吸収材Ｗ２を溶着させる手順に関する説明図である。It is explanatory drawing regarding the procedure of welding the permeable material W1 and the absorber W2.

以下、本発明の一実施形態について、図面を参照しながら説明する。
図１は、本実施形態に係るレーザ溶着装置Ａの構成概略図である。なお、以下では、図中に示すＸＹＺの３軸座標系を参照しながら各部材の位置関係を説明する。ここでは、ＸＹ平面が水平面と平行な面として設定され、Ｚ軸がＸＹ平面に直交して鉛直方向に延びる軸として設定されている。また、装置構成の理解を容易とするために、図１における各部材の大きさを意図的に実際の部材の大きさと異ならせて表示している。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic configuration diagram of a laser welding apparatus A according to the present embodiment. In the following, the positional relationship of each member will be described with reference to an XYZ triaxial coordinate system shown in the drawing. Here, the XY plane is set as a plane parallel to the horizontal plane, and the Z axis is set as an axis extending perpendicularly to the XY plane. In order to facilitate understanding of the apparatus configuration, the size of each member in FIG. 1 is intentionally different from the actual size of the member.

図１（ａ）に示すように、レーザ溶着装置Ａは、レーザを透過する透過材Ｗ１とレーザを吸収する吸収材Ｗ２とを重ね合わせた状態で透過材Ｗ１側から両部材の接合面にレーザを照射して両部材を溶着させるものであって、ワークセット治具１、加圧装置２、レーザヘッド３、３軸移動機構４、レーザ発振器５、操作盤６及びコントローラ７を備えている。  As shown in FIG. 1 (a), the laser welding apparatus A is configured such that a laser is transmitted from the transmitting material W1 side to the joining surface of both members in a state where a transmitting material W1 that transmits laser and an absorbing material W2 that absorbs laser are overlapped. , And a work set jig 1, a pressurizing device 2, a laser head 3, a triaxial moving mechanism 4, a laser oscillator 5, an operation panel 6, and a controller 7.

なお、透過材Ｗ１としては、例えばポリプロピレン、ポリアミド、ポリエチレン、ポリカーポネード等のレーザ透過性樹脂材料を用いることができる。また、吸収材Ｗ２としては、上述したレーザ透過性樹脂材料にレーザ吸収性を有する着色剤、例えばカーボンブラック等の炭素系材料等を添加したものを用いることができる（特許文献１参照）。  As the transmitting material W1, for example, a laser transmitting resin material such as polypropylene, polyamide, polyethylene, or polycarbonate can be used. In addition, as the absorbing material W2, a material obtained by adding a laser-absorbing colorant such as a carbon-based material such as carbon black to the above-described laser-transmitting resin material can be used (see Patent Document 1).

ワークセット治具１は、ワーク、つまり重ね合わされた透過材Ｗ１と吸収材Ｗ２をＺ軸方向の下方から支持するワークステージ１ａと、コントローラ７による制御に応じてワークステージ１ａをＺ軸方向に上下動させる１軸移動機構１ｂとから構成されている。この１軸移動機構１ｂとしては、例えば油圧シリンダやリニアガイド、ボールネジ機構等のアクチュエータを用いることができる。  The workpiece setting jig 1 includes a workpiece stage 1a that supports the workpiece, that is, the superimposed transmitting material W1 and absorbent material W2 from below in the Z-axis direction, and the workpiece stage 1a is moved up and down in the Z-axis direction according to control by the controller 7. It is comprised from the 1 axis | shaft moving mechanism 1b to move. For example, an actuator such as a hydraulic cylinder, a linear guide, or a ball screw mechanism can be used as the uniaxial moving mechanism 1b.

加圧装置２（加圧手段）は、透過材Ｗ１と吸収材Ｗ２とを重ね合わせた状態で透過材表面から両部材の接合面に向かって（つまりＺ軸方向の上方から下方へ向かって）圧力を加えるものであって、透過材表面に設定された複数の加圧箇所のそれぞれに個別に接触する押圧ブロック２ａ（押圧部材）と、押圧ブロック２ａのそれぞれに個別に設けられ、該押圧ブロック２ａに所定の荷重を印加する荷重印加機構２ｂと、各押圧ブロック２ａを個別にＺ軸方向の下方から支持するブロックステージ２ｃとから構成されている。  The pressurizing device 2 (pressurizing means) is directed from the surface of the permeable material to the joint surface of both members in a state where the permeable material W1 and the absorbent material W2 are overlapped (that is, from the upper side to the lower side in the Z-axis direction). A pressure block 2a (pressing member) that individually contacts each of a plurality of pressurization points set on the surface of the permeable material, and is provided individually on each of the press block 2a. A load applying mechanism 2b for applying a predetermined load to 2a and a block stage 2c for individually supporting each pressing block 2a from below in the Z-axis direction are configured.

図１（ｂ）は、加圧装置２をＺ軸方向の上方から平面的に視た図である。この図に示すように、本実施形態では、一例として、特に外周縁部での変形が大きい正方形状の透過材Ｗ１及び吸収材Ｗ２を想定しており、このような正方形状の透過材表面の４隅近傍領域を加圧箇所として設定し、これら４つの加圧箇所のそれぞれに個別に接触するように４つの押圧ブロック２ａを平面的に配置している。このように、本実施形態において、透過材表面の加圧箇所は、押圧ブロック２ａのそれぞれによって透過材Ｗ１の外周縁部が加圧されるように設定されている。  FIG. 1B is a plan view of the pressurizing device 2 as viewed from above in the Z-axis direction. As shown in this figure, in this embodiment, as an example, a square-shaped transmission material W1 and an absorption material W2 that are particularly deformed at the outer peripheral edge are assumed, and the surface of such a square-shaped transmission material is assumed. The areas near the four corners are set as pressing points, and the four pressing blocks 2a are arranged in a plane so as to contact each of these four pressing points individually. Thus, in this embodiment, the pressurization location of the permeation | transmission material surface is set so that the outer periphery part of the permeation | transmission material W1 may be pressurized by each of the press block 2a.

また、図１（ｂ）に示すように、押圧ブロック２ａのそれぞれは、透過材Ｗ１に対するレーザ照射の妨げとならないように形状設定されている。本実施形態では、透過材表面の中央付近が露出するように、各押圧ブロック２ａの形状が設定されている。なお、各押圧ブロック２ａの構成材料としては特に限定はなく、金属材料でも樹脂材料でも良い。例えば、特許文献１に記載されているように、レーザ溶着後の透過材Ｗ１と吸収材Ｗ２との溶着状態を目視にて確認するために、各押圧ブロック２ａを透明なガラスやアクリルによって作製しても良い。  Moreover, as shown in FIG.1 (b), each of the press block 2a is set so that the laser irradiation with respect to the permeation | transmission material W1 may not be prevented. In the present embodiment, the shape of each pressing block 2a is set so that the vicinity of the center of the surface of the transmission material is exposed. In addition, there is no limitation in particular as a constituent material of each press block 2a, A metal material or a resin material may be sufficient. For example, as described in Patent Document 1, in order to visually confirm the welded state between the transmitting material W1 and the absorbing material W2 after laser welding, each pressing block 2a is made of transparent glass or acrylic. May be.

荷重印加機構２ｂとしては、押圧ブロック２ａに対してＺ軸方向の上方から下方に向けて一定の荷重を印加できる機構であれば良く、例えばスプリングの伸長力を利用した機構や油圧シリンダ、サーボモータなどを利用した機構を用いることができる。また、後述するように、各荷重印加機構２ｂによって押圧ブロック２ａのそれぞれに個別に印加される荷重は、透過材Ｗ１側の接合面及び吸収材Ｗ２側の接合面の平面度に応じて設定される。  The load application mechanism 2b may be any mechanism that can apply a constant load to the pressing block 2a from the upper side to the lower side in the Z-axis direction. For example, a mechanism using a spring extension force, a hydraulic cylinder, or a servo motor A mechanism using the above can be used. Further, as will be described later, the load applied individually to each of the pressing blocks 2a by each load applying mechanism 2b is set according to the flatness of the joining surface on the permeable material W1 side and the joining surface on the absorbent material W2 side. The

このように、本実施形態における加圧装置２は、透過材表面に設定された複数（４つ）の加圧箇所に応じて個別に圧力を調整可能な構造となっている。なお、各荷重印加機構２ｂは、Ｚ軸方向の所定位置に固定されているが、各押圧ブロック２ａ及びブロックステージ２ｃは、透過材表面に一定荷重を印加する構造上、Ｚ軸方向に対して一定量のストロークが許容されている。  Thus, the pressurization apparatus 2 in this embodiment has a structure in which the pressure can be individually adjusted according to a plurality of (four) pressurization locations set on the surface of the permeable material. Each load application mechanism 2b is fixed at a predetermined position in the Z-axis direction. However, the pressing block 2a and the block stage 2c have a structure that applies a constant load to the surface of the transmissive material, so A certain amount of stroke is allowed.

レーザヘッド３は、レーザ発振器５から光ファイバを介して供給されるレーザ（例えばＹＡＧレーザ）を集光するレンズ等の光学系部品を内蔵しており、そのレーザの出射光軸３ａがＺ軸と平行となるように姿勢が固定された状態で３軸移動機構４に接続されている。３軸移動機構４は、コントローラ７による制御に応じてレーザヘッド３をＸＹＺ軸方向に移動させる機構である。この３軸移動機構４としては、例えばリニアガイドやボールネジ機構等のアクチュエータを用いることができる。  The laser head 3 incorporates an optical system component such as a lens for condensing a laser (for example, a YAG laser) supplied from the laser oscillator 5 via an optical fiber, and the output optical axis 3a of the laser is the Z axis. It is connected to the triaxial moving mechanism 4 in a state where the posture is fixed so as to be parallel. The triaxial moving mechanism 4 is a mechanism that moves the laser head 3 in the XYZ axial directions in accordance with control by the controller 7. For example, an actuator such as a linear guide or a ball screw mechanism can be used as the triaxial moving mechanism 4.

レーザ発振器５は、コントローラ７による制御に応じてレーザ（例えばＹＡＧレーザ）を発生してレーザヘッド３に供給する。操作盤６は、作業者がレーザ溶着装置Ａを操作する上で必要な各種操作キーや、レーザ溶着装置Ａの動作状態や設定情報等を表示する表示パネルを備えており、作業者による各種操作キーの操作情報をコントローラ７へ出力すると共に、コントローラ７から入力されるレーザ溶着装置Ａの動作状態や設定情報を表示パネルに表示させる。  The laser oscillator 5 generates a laser (for example, YAG laser) in accordance with control by the controller 7 and supplies the laser head 3 with the laser. The operation panel 6 includes various operation keys necessary for the operator to operate the laser welding apparatus A, and a display panel for displaying the operation state and setting information of the laser welding apparatus A. Various operations by the operator are provided. The key operation information is output to the controller 7 and the operation state and setting information of the laser welding apparatus A input from the controller 7 are displayed on the display panel.

コントローラ７は、操作盤６から入力される操作情報に基づいてレーザ溶着装置Ａの全体動作を制御する制御装置であり、具体的には１軸移動機構１ｂの制御によるワークステージ１ａの上下動、３軸移動機構４の制御によるレーザヘッド３の３軸移動、及びレーザ発振器５の制御によるレーザヘッド３からのレーザ照射を統括制御する。また、このコントローラ７は、レーザ溶着装置Ａの動作状態や設定情報等を操作盤６に出力する機能も有している。  The controller 7 is a control device that controls the overall operation of the laser welding apparatus A based on operation information input from the operation panel 6. Specifically, the controller 7 moves the work stage 1a up and down under the control of the one-axis moving mechanism 1b. The three-axis movement of the laser head 3 by the control of the three-axis moving mechanism 4 and the laser irradiation from the laser head 3 by the control of the laser oscillator 5 are comprehensively controlled. The controller 7 also has a function of outputting the operating state of the laser welding apparatus A and setting information to the operation panel 6.

次に、上記のように構成されたレーザ溶着装置Ａを用いて透過材Ｗ１と吸収材Ｗ２を溶着させる手順について図２及び図３を参照しながら説明する。
図２は、レーザ溶着装置Ａを用いて透過材Ｗ１と吸収材Ｗ２を溶着させる手順を示すフローチャートである。この図２に示すように、まず、透過材Ｗ１と吸収材Ｗ２をレーザ溶着装置Ａのワークステージ１ａにセットする前に、透過材Ｗ１側の接合面と吸収材Ｗ２側の接合面の平面度を計測する（ステップＳ１）。 Next, a procedure for welding the transmitting material W1 and the absorbing material W2 using the laser welding apparatus A configured as described above will be described with reference to FIGS.
FIG. 2 is a flowchart showing a procedure for welding the transmitting material W1 and the absorbing material W2 using the laser welding apparatus A. As shown in FIG. 2, first, before setting the transmitting material W1 and the absorbing material W2 to the work stage 1a of the laser welding apparatus A, the flatness of the connecting surface on the transmitting material W1 side and the connecting surface on the absorbing material W2 side. Is measured (step S1).

平面度の計測手法としては、測定面の最も高い部分と最も低い部分との高低差を求める手法が知られている。本実施形態では、接合面内にて複数個所測定し、高低差の大きい部分と高低差の小さい部分を把握する。なお、本実施形態では、図３（ａ）に示すように、特に外周縁部が大きく変形するような透過材Ｗ１を想定しているため、透過材Ｗ１側の接合面において上記外周縁部の平面度の精度が低い（高低差大）傾向となる。  As a method for measuring flatness, a method for obtaining a difference in height between the highest part and the lowest part of the measurement surface is known. In the present embodiment, measurement is made at a plurality of locations within the joint surface, and a portion having a large height difference and a portion having a small height difference are grasped. In this embodiment, as shown in FIG. 3 (a), since the permeable material W1 whose outer peripheral edge is greatly deformed is assumed, the outer peripheral edge of the permeable material W1 is bonded. The flatness accuracy tends to be low (difference in height).

続いて、上記ステップＳ１での平面度の計測結果に基づいて、各荷重印加機構２ｂによって押圧ブロック２ａのそれぞれに個別に印加される荷重を設定する（ステップＳ２）。具体的には、接合面内において、平面度の精度が高い部分(高低差小)の直上に配置される押圧ブロック２ａに対しては小さい荷重が印加されるように、また、平面度の精度が低い部分(高低差大)の直上に配置される押圧ブロック２ａに対しては大きい荷重が印加されるように荷重印加機構２ｂを調整する。例えば、荷重印加機構２ｂがスプリングの伸長力を利用して荷重を発生する機構であれば、バネレートの異なるスプリングに交換すれば良い。  Subsequently, based on the measurement result of flatness in step S1, the load applied individually to each of the pressing blocks 2a by each load application mechanism 2b is set (step S2). Specifically, in the joint surface, a small load is applied to the pressing block 2a disposed immediately above the portion with high flatness accuracy (small height difference), and the flatness accuracy is high. The load application mechanism 2b is adjusted so that a large load is applied to the pressing block 2a arranged immediately above the portion where the height is low (the difference in height). For example, if the load application mechanism 2b is a mechanism that generates a load using the extension force of a spring, it may be replaced with a spring having a different spring rate.

そして、上記ステップＳ２の終了後、透過材Ｗ１と吸収材Ｗ２を重ね合わせた状態でレーザ溶着装置Ａのワークステージ１ａにセットし（ステップＳ３）、操作盤６を操作してワークステージ１ａをリフトアップさせるようコントローラ７に指示する（ステップＳ４）。コントローラ７は、操作盤６からリフトアップの指示を受けると、１軸移動機構１ｂを制御してワークステージ１ａをＺ軸方向の上方へ移動させることにより、図３（ｂ）に示すように、透過材表面と各押圧ブロック２ａの下面とを接触させる。  After step S2, the transmission material W1 and the absorbing material W2 are placed on the work stage 1a of the laser welding apparatus A in a state of being overlapped (step S3), and the operation panel 6 is operated to lift the work stage 1a. The controller 7 is instructed to be increased (step S4). When the controller 7 receives a lift-up instruction from the operation panel 6, the controller 7 controls the uniaxial moving mechanism 1b to move the work stage 1a upward in the Z-axis direction, as shown in FIG. The surface of the transmissive material is brought into contact with the lower surface of each pressing block 2a.

ここで、ワークステージ１ａは、透過材表面と各押圧ブロック２ａの下面とが接触した後も、各押圧ブロック２ａがＺ軸方向の上方へ一定量押し込まれるまでリフトアップ制御される。これにより、各押圧ブロック２ａのそれぞれには、荷重印加機構２ｂによって個別にステップＳ２で設定された荷重が印加されるため、透過材Ｗ１側の接合面に外周縁部の変形が原因で平面度のバラツキが存在していても、透過材Ｗ１と吸収材Ｗ２の密着度を高く維持することができる。  Here, the work stage 1a is lifted up until each pressing block 2a is pushed upward in the Z-axis direction even after the surface of the transmitting material and the lower surface of each pressing block 2a are in contact. Thereby, since the load set in step S2 is individually applied to each of the pressing blocks 2a by the load applying mechanism 2b, the flatness is caused by the deformation of the outer peripheral edge portion on the joint surface on the permeable material W1 side. Even if there is such a variation, it is possible to maintain a high degree of adhesion between the transmissive material W1 and the absorbent material W2.

そして、このように透過材Ｗ１と吸収材Ｗ２の密着度を高く維持した状態で、操作盤６を操作してレーザ照射を開始するようコントローラ７に指示する（ステップＳ５）。コントローラ７は、操作盤６からレーザ照射開始の指示を受けると、３軸移動機構４を制御してレーザヘッド３を予め設定された高さ位置（Ｚ軸位置）に移動させた後、レーザ発振器５を制御してレーザヘッド３からレーザＬを照射させつつ、レーザヘッド３を予めＸＹ平面上に設定されたレーザ照射軌跡に沿って移動させる（図３（ｃ）参照）。  Then, the controller 7 is instructed to start the laser irradiation by operating the operation panel 6 in a state where the adhesion between the transmitting material W1 and the absorbing material W2 is maintained high (step S5). Upon receiving an instruction to start laser irradiation from the operation panel 6, the controller 7 controls the triaxial moving mechanism 4 to move the laser head 3 to a preset height position (Z axis position), and then a laser oscillator. The laser head 3 is moved along a laser irradiation locus set in advance on the XY plane while the laser head 3 is irradiated with the laser L by controlling 5 (see FIG. 3C).

これにより、透過材Ｗ１と吸収材Ｗ２の接合面に対して上記レーザ照射軌跡に沿ってレーザＬが照射され、透過材Ｗ１と吸収材Ｗ２が接合面にて溶着される。なお、コントローラ７は、レーザ照射軌跡の最終端までレーザヘッド３を移動させると、レーザ発振器５を制御してレーザＬの照射を停止させると共に、３軸移動機構４を制御してレーザヘッド３の原点復帰を行う。  Thereby, the laser L is irradiated along the laser irradiation trajectory to the joint surface between the transmissive material W1 and the absorbent material W2, and the transmissive material W1 and the absorbent material W2 are welded at the joint surface. When the controller 7 moves the laser head 3 to the final end of the laser irradiation locus, the controller 7 controls the laser oscillator 5 to stop the irradiation of the laser L and controls the triaxial moving mechanism 4 to control the laser head 3. Perform home return.

そして、レーザ照射終了後、操作盤６を操作してワークステージ１ａをリフトダウンさせるようコントローラ７に指示する（ステップＳ６）。コントローラ７は、操作盤６からリフトダウンの指示を受けると、１軸移動機構１ｂを制御してワークステージ１ａをＺ軸方向の下方へ移動させることにより、ワークステージ１ａを原点復帰させる。最後に、ワークステージ１ａから溶着された透過材Ｗ１と吸収材Ｗ２を取り外してレーザ溶着作業が終了する（ステップＳ７）。  After the laser irradiation is completed, the controller 7 is instructed to operate the operation panel 6 to lift down the work stage 1a (step S6). Upon receiving a lift-down instruction from the operation panel 6, the controller 7 controls the uniaxial moving mechanism 1b to move the work stage 1a downward in the Z-axis direction, thereby returning the work stage 1a to the origin. Finally, the permeable material W1 and the absorbent material W2 welded from the work stage 1a are removed, and the laser welding work is completed (step S7).

以上説明したように、本実施形態に係るレーザ溶着装置Ａによれば、透過材Ｗ１と吸収材Ｗ２の接合面内の場所に応じて個別に加圧圧力を調整できるため、透過材Ｗ１側或いは吸収材Ｗ２側の接合面に変形等が原因で平面度のバラツキが存在する場合であっても、両部材の密着度を高いまま維持することができ、その結果、透過材Ｗ１と吸収材Ｗ２との溶着強度の向上を実現することができる。  As described above, according to the laser welding apparatus A according to the present embodiment, the pressurization pressure can be individually adjusted according to the location in the joint surface between the transmission material W1 and the absorption material W2, so that the transmission material W1 side or Even when there is variation in flatness due to deformation or the like on the joint surface on the absorbent material W2 side, the adhesion between both members can be maintained high, and as a result, the permeable material W1 and the absorbent material W2 can be maintained. The improvement of the welding strength can be realized.

なお、本発明は上記実施形態に限定されず、以下のような変形例が挙げられる。
（１）上記実施形態では、外周縁部での変形が大きい正方形状の透過材Ｗ１及び吸収材Ｗ２を想定していたため、このような正方形状の透過材表面の４隅近傍領域を加圧箇所として設定し、これら４つの加圧箇所のそれぞれに個別に接触するように４つの押圧ブロック２ａを平面的に配置して透過材Ｗ１の外周縁部が加圧されるように加圧装置２を構成したが、押圧ブロック２ａの個数や配置は透過材Ｗ１及び吸収材Ｗ２の性質に応じて適宜変更可能であることは勿論である。 In addition, this invention is not limited to the said embodiment, The following modifications are mentioned.
(1) In the above embodiment, since the square-shaped transmission material W1 and the absorption material W2 with large deformation at the outer peripheral edge are assumed, the areas near the four corners of the surface of the square-shaped transmission material are pressed locations. The pressurizing device 2 is set so that the outer peripheral edge of the permeable material W1 is pressurized by arranging the four pressing blocks 2a in a plane so as to individually contact each of these four pressurizing locations. Although configured, it goes without saying that the number and arrangement of the pressing blocks 2a can be appropriately changed according to the properties of the transmitting material W1 and the absorbing material W2.

（２）上記実施形態では、荷重印加機構２ｂがスプリングの伸長力を利用して荷重を発生する機構であれば、バネレートの異なるスプリングに交換することで荷重設定を行う場合を例示したが、例えば荷重印加機構２ｂが電子制御によって荷重を調整可能なものであれば、コントローラ７によって荷重設定を行うようにしても良い。 (2) In the above embodiment, when the load application mechanism 2b is a mechanism that generates a load using the extension force of the spring, the case where the load is set by exchanging with a spring having a different spring rate is exemplified. If the load application mechanism 2b can adjust the load by electronic control, the controller 7 may set the load.

Ａ…レーザ溶着装置、１…ワークセット治具、２…加圧装置（加圧手段）、３…レーザヘッド、４…３軸移動機構、５…レーザ発振器、６…操作盤、７…コントローラ、２ａ…押圧ブロック（押圧部材）、２ｂ…荷重印加機構、Ｗ１…透過材、Ｗ２…吸収材  A ... Laser welding device, 1 ... Work setting jig, 2 ... Pressurizing device (pressurizing means), 3 ... Laser head, 4 ... 3-axis moving mechanism, 5 ... Laser oscillator, 6 ... Control panel, 7 ... Controller, 2a ... Pressing block (pressing member), 2b ... Load applying mechanism, W1 ... Transparent material, W2 ... Absorbing material

Claims (5)

レーザを透過する透過材とレーザを吸収する吸収材とを重ね合わせた状態で前記透過材側から両部材の接合面にレーザを照射して両部材を溶着させるレーザ溶着装置において、
前記透過材と前記吸収材とを重ね合わせた状態で透過材表面から前記接合面に向かって圧力を加える加圧手段を備え、
前記加圧手段は、前記透過材表面に設定された複数の加圧箇所に応じて個別に圧力を調整可能であることを特徴とするレーザ溶着装置。 In a laser welding device that welds both members by irradiating a laser onto the joining surface of both members from the transmitting material side in a state where a transmitting material that transmits laser and an absorbing material that absorbs laser are overlapped,
Pressurizing means for applying pressure from the surface of the permeable material toward the joint surface in a state where the permeable material and the absorbent material are superposed,
The laser welding apparatus according to claim 1, wherein the pressurizing means is capable of individually adjusting the pressure according to a plurality of pressurization locations set on the surface of the transmission material. 前記加圧手段は、
前記透過材表面に設定された複数の加圧箇所のそれぞれに個別に接触する押圧部材と、
前記押圧部材のそれぞれに個別に設けられ、該押圧部材に所定の荷重を印加する荷重印加機構と、
を備えることを特徴とする請求項１に記載のレーザ溶着装置。 The pressurizing means is
A pressing member that individually contacts each of a plurality of pressurization locations set on the surface of the transmission material;
A load applying mechanism that is individually provided to each of the pressing members and applies a predetermined load to the pressing members;
The laser welding apparatus according to claim 1, comprising: 前記荷重印加機構によって前記押圧部材のそれぞれに個別に印加される荷重は、前記透過材側の接合面及び前記吸収材側の接合面の平面度に応じて設定されることを特徴とする請求項２に記載のレーザ溶着装置。   The load applied individually to each of the pressing members by the load application mechanism is set according to flatness of the bonding surface on the transmission material side and the bonding surface on the absorption material side. 2. The laser welding apparatus according to 2. 前記押圧部材のそれぞれは、前記透過材に対するレーザ照射の妨げとならないように形状設定されることを特徴とする請求項２または３に記載のレーザ溶着装置。   4. The laser welding apparatus according to claim 2, wherein each of the pressing members is shaped so as not to hinder laser irradiation on the transmission material. 5. 前記透過材表面の加圧箇所は、前記押圧部材のそれぞれによって前記透過材の外周縁部が加圧されるように設定されることを特徴とする請求項２〜４のいずれか一項に記載のレーザ溶着装置。   The pressurization location on the surface of the permeable material is set such that an outer peripheral edge portion of the permeable material is pressurized by each of the pressing members. Laser welding equipment.
JP2011006982A 2011-01-17 2011-01-17 Laser welding apparatus Pending JP2012148425A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003225946A (en) * 2002-02-01 2003-08-12 Denso Corp Laser bonding method and laser bonding device
JP2007111927A (en) * 2005-10-19 2007-05-10 Toyota Motor Corp Laser welding method of thermoplastic resin members and laser welding apparatus
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