JP2014111276A - Overlay welding device and overlay welding method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an overlay welding method that can apply overlay welding while securing safety.SOLUTION: In the overlay welding method which applies overlay welding by melting by laser light a weld overlay material on a site of a conductive object 1 to be processed, the laser light is guided by a laser guide body 41 whose outside can be gripped by hand and which is internally provided, a holder main body 4 that irradiates the laser light from the top thereof and a plurality of conductive outside members 44 and 44 mounted outside the holder main body 4 are provided. The laser light is irradiated from the top of the holder main body 4 to allow overlay welding to be applied to the site of the conductive object 1 to be processed under the conditions that the conductive outside members 44 and 44 are in contact with the conductive object 1 to be processed.

Description

    The present invention relates to a build-up welding method, a welding method, and a cutting method, and more particularly to a build-up welding method, a welding method, and a cutting method that can perform build-up welding while ensuring safety.

There is a laser overlaying method in which an overlaying layer is formed on a workpiece by irradiating a laser beam to melt the overlaying metal member placed on the workpiece (see, for example, Patent Document 1).
When the workpiece can be brought into the laser beam irradiation apparatus that performs this laser cladding method, the laser beam is irradiated toward the workpiece in the vertically lower position, which is a problem in terms of safety. Does not occur.
JP 2009-61491 A

However, when the work piece is large and the work piece cannot be brought into the place where the laser beam irradiation apparatus is installed, there is a problem that overlay welding cannot be performed.
In order to solve this problem, when the laser beam irradiation device is brought into the place where the workpiece is installed and the laser beam is irradiated toward the workpiece, the laser beam goes straight. Because of carelessness of the operator, the laser beam may be irradiated to places other than the workpiece. In such a case, there is a problem in terms of safety that the laser beam enters the eyes of people other than the operator. Occurs.

The present invention has been made in consideration of the above-described problems, and an object thereof is to provide a build-up welding method capable of performing build-up welding while ensuring safety.
Moreover, an object of this invention is to provide the welding method which can ensure welding and can perform welding.
Moreover, an object of this invention is to provide the cutting method which can ensure safety | security and can cut | disconnect.

    The build-up welding apparatus according to claim 1, wherein a build-up welding material is positioned on a conductive work piece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A holder body which is held by a hand and is guided by the laser light guide provided inside and irradiated with the laser light from the tip, and an outer side of the holder body A plurality of electrically conductive outer members attached to the front end of the holder body, provided that the electrically conductive outer members are in contact with the electrically conductive workpiece and are energized. Further, the portion of the conductive workpiece is build-up welded by irradiating the laser beam.

    The build-up welding apparatus according to claim 2 is irradiated from the holder body in the build-up welding apparatus according to claim 1, in a state where the plurality of conductive outer members are in contact with the conductive work piece. A condensing position of the laser beam to be set in a portion of the conductive workpiece, and at least one of the conductive outer members is a powdery meat in one conductive outer member. A common passage through which the welded material and the shield gas flow is formed, and a tip of the one conductive outer member faces a build-up welded part of the conductive work piece, and the part of the conductive work piece Is welded.

    According to a third aspect of the present invention, there is provided the overlay welding apparatus according to the first aspect, wherein the holder body is irradiated with the plurality of conductive outer members in contact with the conductive workpiece. A passage where a shield gas flows in at least one conductive outer member of the plurality of conductive outer members. And the end of the one conductive outer member and the rod-shaped build-up welding material face the build-up welding part of the conductive work piece, and build up the part of the conductive work piece Welding.

    According to a fourth aspect of the present invention, there is provided a build-up welding apparatus in which a build-up welding material is positioned at a portion of a workpiece, the build-up welding material is irradiated with laser light, and the build-up welding material is melted and welded. A welding apparatus, which is gripped outside by hand, is guided by the laser beam guide provided inside, and is irradiated with the laser beam from the tip, and on the outside of the holder body An attached outer member; a second outer member attached to the outside of the holder main body; and a contact detection means for detecting that the second outer member contacts the workpiece, In a state where the second outer member is in contact with the workpiece, the condensing position of the laser light emitted from the holder main body is set at the site of the workpiece, and the contact detection means is the workpiece. Condition that contact of objects is detected To, the site of irradiation with the laser beam from the tip of the holder body the workpiece is to overlay welding.

    Further, the build-up welding apparatus according to claim 5 is configured to place a build-up welding material on a part of a workpiece, irradiate the build-up welding material with a laser beam, and melt and weld the build-up welding material. A welding apparatus, which is gripped outside by hand, is guided by the laser beam guide provided inside, and is irradiated with the laser beam from the tip, and on the outside of the holder body An attached outer member and contact detection means for detecting that the outer member contacts the workpiece, and irradiation from the holder body in a state where the outer member is in contact with the workpiece. The laser beam is focused from the tip of the holder body on the condition that the condensing position of the laser beam to be processed is set at the part of the workpiece and the contact detection means detects the contact of the workpiece. The workpiece is irradiated with light Site is to build-up welding.

    Moreover, the build-up welding apparatus according to claim 6 is the build-up welding apparatus according to any one of claims 1 to 5, wherein the outer member is movably attached to the holder body.

    The overlay welding apparatus according to claim 7 is the overlay welding apparatus according to claim 1, claim 4, or claim 5, wherein the overlay welding material is a paste-like overlay welding material. The paste build-up welding material is a mixture of a powder build-up welding material and a liquid.

    The build-up welding apparatus according to claim 8 is the build-up welding apparatus according to claim 1, wherein the build-up welding material is a paste build-up welding material, and the paste build-up welding material is a powder. Of the laser beam irradiated from the holder main body in a state where a plurality of conductive overlaying materials and liquid are mixed and a plurality of conductive outer members are in contact with the conductive workpiece Is set at the portion of the conductive workpiece, and a passage through which a shielding gas flows is formed in at least one of the plurality of conductive outer members. Conductive build-up welding is performed on the portion of the conductive work piece with the tip of the conductive outer member facing the build-up weld portion of the conductive work piece coated with the paste-like build-up welding material. Is.

    The welding apparatus according to claim 9 is configured to abut the end surfaces of the conductive first workpiece and the conductive second workpiece, position the welding material at the abutted portion, and A welding device that melts and welds the welding material, and is held outside by hand, and the laser light is guided by a laser light guide provided inside, and the laser beam is guided from the tip. A holder main body to which the laser beam is irradiated; and a plurality of conductive outer members attached to the outside of the holder main body, and one of the plurality of conductive outer members is one of the first outer members. On the condition that the other outer member is in contact with the second workpiece and is energized to the workpiece, the laser beam is irradiated from the tip of the holder body to make the abutment. The part is welded.

    A welding apparatus according to a tenth aspect is the welding apparatus according to the ninth aspect, wherein one of the plurality of conductive outer members is the first workpiece and the other outer member is the second. In the state where the workpieces are in contact with each other, the condensing position of the laser light emitted from the holder main body is set to a portion where the abutting faces, and at least of the plurality of conductive outer members A common passage through which powdered welding material and shield gas flow is formed in one conductive outer member, and the tip of the one member faces the abutted portion, and the abutted portion is welded Is.

    The welding apparatus according to claim 11 is the welding apparatus according to claim 9, wherein one of the plurality of conductive outer members is the first workpiece, and the other outer member is the second. In the state where each of the workpieces is in contact with each other, the condensing position of the laser light emitted from the holder main body is set to the abutted portion, and at least of the plurality of conductive outer members, A passage through which a shielding gas flows is formed in the one outer member, and a tip of the one outer member and a rod-shaped welding material face a welded portion of the conductive workpiece, and the conductive workpiece. This part is welded.

    The overlay welding apparatus according to claim 12 is configured to abut the end surfaces of the first workpiece and the second workpiece, position the welding material at the abutted portion, and apply laser light to the welding material. A welding apparatus that irradiates and melts and welds the welding material. The laser beam is guided by a laser beam guide provided inside and irradiated by the laser beam from the tip. A holder main body, an outer member attached to the outer side of the holder main body, a second outer member attached to the outer side of the holder main body, and the second outer member serving as the first workpiece. Contact detection means for detecting contact, and in a state where the second outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder body is It is set to the part where it meets, On the condition that the contact detection means detects the contact of the first workpiece, the laser beam is irradiated from the tip of the holder body to weld the abutted portion. .

    Further, the welding apparatus according to claim 13 butts the end surfaces of the first workpiece and the second workpiece, positions the welding material at the abutted portion, and irradiates the welding material with laser light. A welding apparatus for melting and welding the welding material, the laser beam being guided by a laser beam guiding body provided inside and being irradiated from the tip. A holder main body; an outer member attached to the outer side of the holder main body; and contact detection means for detecting that the outer member contacts the first workpiece, wherein the outer member is the first member. In the state of contact with the workpiece, the condensing position of the laser light emitted from the holder main body is set at the abutted portion, and the contact detection means is in contact with the first workpiece. On condition that Is for welding the Tsukiawashi portion by irradiating the laser beam from the tip of the holder body.

    A welding apparatus according to claim 14 is the welding apparatus according to any one of claims 9 to 13, wherein the outer member is movably attached to the holder body.

    The welding device according to claim 15 is the welding device according to claim 12 or claim 13, wherein the welding material is a paste-like welding material, and the paste-like welding material is a powder-like welding material. And liquid.

    The welding device according to claim 16 is the welding device according to claim 9, wherein the welding material is a paste-like welding material, and the paste-like welding material is a mixture of a powder-like welding material and a liquid. In a state where a plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light emitted from the holder body is set at the portion of the conductive workpiece. And a passage through which a shielding gas flows is formed in at least one of the plurality of conductive outer members, and the tip of the one conductive outer member has the paste-like shape. The portion of the conductive workpiece is welded to the welding portion of the conductive workpiece to which the overlay welding material is applied.

    The cutting device according to claim 17 is a cutting device that irradiates a portion of the conductive workpiece with laser light to cut the portion of the conductive workpiece, and is held by a hand. In addition, the laser beam is guided by a laser beam guide provided inside, and a holder main body to which the laser beam is irradiated from the tip, and a plurality of conductive outer members attached to the outside of the holder main body. Provided that the plurality of conductive outer members are in contact with the conductive work piece and are energized so that the laser beam is irradiated from the tip of the holder body. The part of the workpiece is cut.

    Further, the cutting device according to claim 18 is the cutting device according to claim 17, wherein the laser beam emitted from the holder body in a state where the plurality of conductive outer members are in contact with the conductive workpiece. A condensing position is set in the conductive work piece, and a passage through which shield gas flows is formed in at least one conductive outer member of the plurality of conductive outer members. The tip of the one conductive outer member faces the portion of the conductive workpiece and cuts the portion of the conductive workpiece.

    The cutting device according to claim 19 is a cutting device that irradiates a portion of the workpiece with laser light and cuts the portion of the workpiece, and is held inside and provided inside. The laser beam is guided by the laser beam guide body, the holder body to which the laser beam is irradiated from the tip, an outer member attached to the outside of the holder body, and a second body attached to the outside of the holder body. And a contact detection means for detecting that the second outer member contacts the workpiece, and the second outer member is in contact with the workpiece, On the condition that the condensing position of the laser beam irradiated from the holder main body is set at the site of the workpiece, and the contact detection means detects the contact of the workpiece, Laser from the tip The irradiated is to cut a portion of said conductive workpiece.

    The cutting device according to claim 20 is a cutting device that irradiates a portion of the workpiece with laser light and cuts the portion of the workpiece, and is held inside and provided inside. The laser beam is guided by the laser beam guide body, the holder main body irradiated with the laser light from the tip, the outer member attached to the outside of the holder main body, and the outer member abut against the workpiece. A contact detecting means for detecting this, and in a state in which the outer member is in contact with the workpiece, a condensing position of the laser beam irradiated from the holder main body is set to a part of the workpiece. , Cutting the conductive workpiece by irradiating the laser beam from the tip of the holder body, provided that the contact detection means detects the contact of the workpiece. It is.

    The cutting device according to claim 21 is the cutting device according to any one of claims 17 to 21, wherein the outer member is movably attached to the holder body.

    Further, the build-up welding method according to claim 22 is characterized in that a build-up welding material is positioned at a portion of a conductive workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted. A holder body in which the outside is gripped by hand and the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and the holder body A plurality of conductive outer members attached to the outside of the holder, and the holder body on condition that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. The portion of the conductive workpiece is build-up welded by irradiating the laser beam from the tip.

    The overlay welding method according to claim 23 is the overlay welding method according to claim 22, wherein the plurality of conductive outer members are irradiated from the holder main body in a state where the conductive outer members are in contact with the conductive workpiece. A condensing position of the laser beam to be set in a portion of the conductive workpiece, and at least one of the conductive outer members is a powdery meat in one conductive outer member. A common passage through which the welded material and the shield gas flow is formed, and a tip of the one conductive outer member faces a build-up welded part of the conductive work piece, and the part of the conductive work piece Is welded.

    In the overlay welding method according to claim 24, in the state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser beam irradiated from the holder body is the conductive layer. And a passage through which a shielding gas flows is formed in at least one conductive outer member of the plurality of conductive outer members. The tip of the member and the rod-like build-up welding material face the build-up welding part of the conductive workpiece, and build-up welding is performed on the part of the conductive work piece.

    Further, in the build-up welding method according to claim 25, a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A welding method in which the outside is gripped by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip, and on the outside of the holder body An attached outer member; a second outer member attached to the outside of the holder main body; and a contact detection means for detecting that the second outer member contacts the workpiece, In a state where the second outer member is in contact with the workpiece, the condensing position of the laser light emitted from the holder main body is set at the site of the workpiece, and the contact detection means is the workpiece. It is necessary to detect contact of objects. As the site of irradiation with the laser beam from the tip of the holder body the workpiece is to overlay welding.

    Further, in the build-up welding method according to claim 26, a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A welding method in which the outside is gripped by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip, and on the outside of the holder body An attached outer member and contact detection means for detecting that the outer member contacts the workpiece, and irradiation from the holder body in a state where the outer member is in contact with the workpiece. The laser beam is focused from the tip of the holder body on the condition that the condensing position of the laser beam to be processed is set at the part of the workpiece and the contact detection means detects the contact of the workpiece. Irradiate light to the workpiece The site of the one in which the build-up welding.

    In addition, the build-up welding method according to claim 27 is the build-up welding method according to any one of claims 22 to 26, wherein the outer member is movably attached to the holder body.

    Further, the build-up welding method according to claim 28 is the build-up welding method according to claim 22, 25, or 26, wherein the build-up welding material is a paste-like build-up welding material. The paste build-up welding material is a mixture of a powder build-up welding material and a liquid.

    Furthermore, in the build-up welding method according to claim 29, the build-up welding material is a paste-type build-up welding material, and the paste-like build-up welding material is a mixture of a powder-type build-up welding material and a liquid. In the state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light emitted from the holder body is at the portion of the conductive workpiece. A passage through which a shielding gas flows is formed in at least one conductive outer member of the plurality of conductive outer members, and a tip of the one conductive outer member is formed in the paste shape. Then, the portion of the conductive workpiece is build-up welded so as to face the build-up weld portion of the conductive workpiece to which the overlay welding material is applied.

    The welding method according to claim 30, wherein the end surfaces of the conductive first workpiece and the conductive second workpiece are butted, and the welding material is positioned at the butted portion, and the welding material A welding method in which the welding material is melted and welded, the outside is grasped by hand, and the laser light is guided by a laser light guide provided inside, and the laser beam is guided from the tip. A holder main body to which the laser beam is irradiated; and a plurality of conductive outer members attached to the outside of the holder main body, and one of the plurality of conductive outer members is one of the first outer members. On the condition that the other outer member is in contact with the second workpiece and is energized to the workpiece, the laser beam is irradiated from the tip of the holder body to make the abutment. The part is welded.

    A welding method according to a thirty-first aspect is the welding method according to the thirty-third aspect, wherein one of the plurality of conductive outer members is the first workpiece and the other outer member is the second. In the state where the workpieces are in contact with each other, the condensing position of the laser light emitted from the holder main body is set to a portion where the abutting faces, and at least of the plurality of conductive outer members A common passage through which powdered welding material and shield gas flow is formed in one conductive outer member, and the tip of the one member faces the abutted portion, and the abutted portion is welded Is.

    A welding method according to a thirty-second aspect is the welding method according to the thirty-third aspect, wherein one of the plurality of conductive outer members is the first workpiece and the other outer member is the second. In the state where each of the workpieces is in contact with each other, the condensing position of the laser light emitted from the holder main body is set to the abutted portion, and at least of the plurality of conductive outer members, A passage through which a shielding gas flows is formed in the one outer member, and a tip of the one outer member and a rod-shaped welding material face a welded portion of the conductive workpiece, and the conductive workpiece. This part is welded.

    In the welding method according to claim 33, the end surfaces of the first workpiece and the second workpiece are abutted, a welding material is positioned at the abutted portion, and the welding material is irradiated with a laser beam. A welding method in which the welding material is melted and welded, and the laser beam is guided by a laser beam guide provided inside and irradiated with the laser beam from the tip. A holder main body, an outer member attached to the outside of the holder main body, a second outer member attached to the outer side of the holder main body, and the second outer member abut against the first workpiece. A contact detection means for detecting this, and in a state in which the second outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder body is the abutting Set to On condition that contact detecting means detects the contact of the first workpiece, it is to weld the Tsukiawashi portion by irradiating the laser beam from the tip of the holder body.

    In the welding method according to claim 34, the end surfaces of the first workpiece and the second workpiece are abutted, a welding material is positioned at the abutted portion, and the welding material is irradiated with laser light. A welding method in which the welding material is melted and welded, and the laser beam is guided by a laser beam guide provided inside and irradiated with the laser beam from the tip. A holder main body; an outer member attached to the outer side of the holder main body; and contact detection means for detecting that the outer member contacts the first workpiece, wherein the outer member is the first member. In the state of contact with the workpiece, the condensing position of the laser light emitted from the holder main body is set at the abutted portion, and the contact detection means is in contact with the first workpiece. On condition that It is intended.

    The welding method according to claim 35 is the welding method according to any one of claims 30 to 34, wherein the outer member is movably attached to the holder body.

    The welding method according to claim 36 is the welding method according to claim 30, 33, or 34, wherein the welding material is a paste-like welding material, and the paste-like welding material is A powdered welding material and a liquid are mixed.

    The welding method according to claim 37 is the welding method according to claim 30, wherein the welding material is a paste-like welding material, and the paste-like welding material is a mixture of a powder-like welding material and a liquid. In a state where a plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light emitted from the holder body is set at the portion of the conductive workpiece. And a passage through which a shielding gas flows is formed in at least one of the plurality of conductive outer members, and the tip of the one conductive outer member has the paste-like shape. The portion of the conductive workpiece is welded to the welding portion of the conductive workpiece to which the overlay welding material is applied.

    A cutting method according to claim 38 is a cutting method in which a portion of the conductive workpiece is cut by irradiating a portion of the conductive workpiece with laser light, and the outside is grasped by a hand. In addition, the laser beam is guided by a laser beam guide provided inside, and a holder main body to which the laser beam is irradiated from the tip, and a plurality of conductive outer members attached to the outside of the holder main body. Provided that the plurality of conductive outer members are in contact with the conductive work piece and are energized so that the laser beam is irradiated from the tip of the holder body. The part of the workpiece is cut.

    Further, the cutting method according to claim 39 is the cutting method according to claim 38, wherein the laser beam irradiated from the holder main body in a state where the plurality of conductive outer members are in contact with the conductive workpiece. A condensing position is set in the conductive work piece, and a passage through which shield gas flows is formed in at least one conductive outer member of the plurality of conductive outer members. The tip of the one conductive outer member faces the portion of the conductive workpiece and cuts the portion of the conductive workpiece.

    The cutting method according to claim 40 is a cutting method in which a part of the workpiece is irradiated with laser light to cut the part of the workpiece, and the outside is gripped by hand and provided inside. The laser beam is guided by the laser beam guide body, the holder body to which the laser beam is irradiated from the tip, an outer member attached to the outside of the holder body, and a second body attached to the outside of the holder body. And a contact detection means for detecting that the second outer member contacts the workpiece, and the second outer member is in contact with the workpiece, On the condition that the condensing position of the laser beam irradiated from the holder main body is set at the site of the workpiece, and the contact detection means detects the contact of the workpiece, Laser from the tip The irradiated is to cut a portion of said conductive workpiece.

    The cutting method according to claim 41 is a cutting method in which a portion of the workpiece is irradiated with laser light to cut the portion of the workpiece, and the outside is gripped by hand and provided inside. The laser beam is guided by the laser beam guide body, the holder main body irradiated with the laser light from the tip, the outer member attached to the outside of the holder main body, and the outer member abut against the workpiece. A contact detecting means for detecting this, and in a state in which the outer member is in contact with the workpiece, a condensing position of the laser beam irradiated from the holder main body is set to a part of the workpiece. , Cutting the conductive workpiece by irradiating the laser beam from the tip of the holder body, provided that the contact detection means detects the contact of the workpiece. It is.

    The cutting method according to claim 42 is the cutting method according to any one of claims 39 to 41, wherein the outer member is movably attached to the holder body.

According to the build-up welding apparatus according to claim 1, the holder main body which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. And a plurality of conductive outer members attached to the outside of the holder body, provided that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. The laser beam is irradiated from the tip of the holder body to build up the conductive workpiece part, so that even if the holder body is moved to the vicinity of the workpiece part, the laser can be used. Safety can be ensured as much as light irradiation can be regulated.

    A cutting method according to claim 42 is the cutting method according to any one of claims 39 to 42, wherein the outer member is movably attached to the holder body.

    According to the build-up welding apparatus according to claim 1, the holder main body which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. And a plurality of conductive outer members attached to the outside of the holder body, provided that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. The laser beam is irradiated from the tip of the holder body to build up the conductive workpiece part, so that even if the holder body is moved to the vicinity of the workpiece part, the laser can be used. Safety can be ensured as much as light irradiation can be regulated.

    According to the build-up welding apparatus of the second aspect, in addition to the effect of the invention of the first aspect, in the state where the plurality of conductive outer members are in contact with the conductive workpiece, the holder The condensing position of the laser beam irradiated from the main body is set at the portion of the conductive workpiece, and at least in one conductive outer member of the plurality of conductive outer members. A common passage is formed through which the powder overlay welding material and the shielding gas flow, and the tip of the one conductive outer member faces the overlay welding portion of the conductive workpiece, and the conductive workpiece is covered. Since the parts of the workpiece are build-up welded, it is easy to work, and in the state where a plurality of conductive members are in contact with the conductive workpiece, it is uniform because the laser beam is focused Overlay welding can be performed.

    Moreover, according to the build-up welding apparatus of Claim 3, in addition to the effect of the invention of Claim 1 described above, in the state where the plurality of conductive outer members are in contact with the conductive workpiece, the holder The condensing position of the laser beam irradiated from the main body is set at the portion of the conductive workpiece, and at least one of the conductive outer members is shielded within the conductive outer member. A passage through which a gas flows is formed, and the tip of the one conductive outer member and the rod-shaped build-up welding material face the build-up welding portion of the conductive work piece, and the conductive work piece Since the parts are overlaid and welded, it is easy to work, and in the state where a plurality of conductive outer members are in contact with the conductive work piece, a uniform thickness can be obtained by setting the laser beam condensing position. Prime welding can be performed.

    According to the build-up welding apparatus of claim 4, the holder is held outside by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip. A main body, an outer member attached to the outside of the holder main body, a second outer member attached to the outer side of the holder main body, and detecting that the second outer member abuts on the workpiece. Contact detection means, and in a state in which the second outer member is in contact with the workpiece, a condensing position of the laser light emitted from the holder body is set at a part of the workpiece, A holder for overlay welding the part of the workpiece by irradiating the laser beam from the tip of the holder body, provided that the contact detection means detects the contact of the workpiece. The body is the part of the workpiece Even if the work is moved to the vicinity, the safety can be ensured by the amount that the laser beam irradiation can be regulated, and the second outer member attached to the outside of the holder main body is in contact with the work piece. Therefore, uniform build-up welding can be performed, and the part of the workpiece is not limited to the conductive member, and can be applied to a non-conductive member.

    According to the build-up welding apparatus of claim 5, the holder that is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. A main body, an outer member attached to the outer side of the holder main body, and contact detecting means for detecting that the outer member contacts the workpiece, wherein the outer member contacts the workpiece. In this state, the condensing position of the laser beam emitted from the holder main body is set at the part of the workpiece, and the contact detection means detects the contact of the workpiece. Since the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece, the laser beam is irradiated even if the holder body is moved to the vicinity of the part of the workpiece. Can be regulated, safety Since the outer member attached to the outside of the holder body can be in contact with the work piece and can perform the work, uniform overlay welding can be performed, and the part of the work piece is electrically conductive. Not only a conductive member but also a non-conductive member can be applied.

    Moreover, according to the build-up welding apparatus of Claim 6, in addition to the effect of the invention of Claims 1-5 mentioned above, since the outer member is movably attached to the holder body, the material of the workpiece The condensing position of the laser beam can be adjusted according to the above.

    Moreover, according to the overlay welding apparatus of Claim 8, in addition to the effect of the invention of Claim 1, the holder in the state where the plurality of conductive outer members are in contact with the conductive workpiece. The condensing position of the laser beam irradiated from the main body is set at the portion of the conductive workpiece, and at least one of the conductive outer members is shielded within the conductive outer member. A path through which a gas flows is formed, and a tip of the one conductive outer member faces a build-up welding site of the conductive workpiece to which the paste-like build-up welding material is applied, and the conductive Since the parts of the workpiece are welded and welded, it is easy to work, and in the state where the plurality of conductive outer members are in contact with the conductive workpiece, it is set at the condensing position of the laser beam. Therefore, uniform overlay welding can be performed.

    According to the welding apparatus of claim 9, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. A plurality of conductive outer members attached to the outside of the holder main body, and one of the plurality of conductive outer members is connected to the first workpiece and the other outer member. The holder main body is attached to the first workpiece in order to weld the abutted portion by irradiating the laser beam from the tip of the holder main body on the condition that the second workpiece is in contact with the second workpiece. Even if the work is moved to the vicinity of the part where the work piece and the second work piece are brought into contact with each other, the safety can be ensured as much as the irradiation of the laser beam can be regulated.

    According to the welding apparatus of claim 10, in addition to the effect of the invention of claim 9 described above, one outer member of the plurality of conductive outer members becomes the first workpiece and the other In the state where the outer member of each is in contact with the second workpiece, the condensing position of the laser beam irradiated from the holder body is set to the abutted portion, and the plurality of conductive pluralities A common passage through which powdered welding material and shielding gas flow is formed in at least one conductive outer member of the outer member, and the tip of the one member faces the abutted portion, and the protrusion Because the welded parts are welded, it is easy to work, and among the plurality of conductive outer members, one outer member is the first workpiece and the other outer member is the second workpiece. In the contact state, the holder book Amount that is set in the focusing position is Tsukiawashi portion of the laser beam irradiated from, it is possible to perform uniform welding.

    In addition, according to the welding apparatus of the eleventh aspect, in addition to the effect of the invention of the ninth aspect, one outer member of the plurality of conductive outer members is used as the first workpiece, and the other In a state where the outer members of the laser beam are in contact with the second workpiece, the condensing position of the laser beam irradiated from the holder main body is set to a portion where the abutting faces, and a plurality of conductive outer sides Among the members, at least a passage through which a shielding gas flows is formed in the one outer member, the tip of the one outer member and the rod-shaped welding material face the welding portion of the conductive workpiece, Since the parts of the conductive workpiece are welded, it is easy to work, and among the plurality of conductive outer members, one outer member is the first workpiece and the other outer member is the second workpiece. While in contact with the workpiece, Amount that condensing position of the laser beam irradiated from the Da body is set to the portion Tsukiawashi, it is possible to perform uniform welding.

    According to the welding device of claim 12, the holder main body which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. , An outer member attached to the outside of the holder body, a second outer member attached to the outside of the holder body, and detecting that the second outer member is in contact with the first workpiece. A contact detecting means for performing contact, and in a state in which the second outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder body is at the abutted portion. The welded portion is welded by irradiating the laser beam from the tip of the holder body, provided that the contact detection means detects the contact of the first workpiece. For the holder body Even if the work is moved to the vicinity of the abutted portion, the safety can be ensured by the amount that the laser beam irradiation can be restricted, and the second outer member attached to the outside of the holder body is the first member. Uniform welding can be performed as much as the work can be performed in contact with the workpiece, and the first workpiece and the second workpiece are not limited to conductive members, but can be non-conductive members. Applicable.

    According to the welding apparatus of claim 13, the end surfaces of the first workpiece and the second workpiece are butted, the welding material is positioned at the butted portion, and laser light is irradiated to the welding material. A welding apparatus that irradiates and melts and welds the welding material. The laser beam is guided by a laser beam guide provided inside and irradiated by the laser beam from the tip. A holder main body, an outer member attached to the outer side of the holder main body, and a contact detection means for detecting that the outer member contacts the first workpiece, wherein the outer member is In the state of contact with the first workpiece, the condensing position of the laser light emitted from the holder main body is set to the abutted portion, and the contact detection means is configured to detect the first workpiece. That contact is detected As described above, the laser beam is irradiated from the tip of the holder body and the abutted portion is welded. Therefore, even when the holder body is moved to the vicinity of the abutted portion, the laser beam irradiation can be regulated. Safety can be ensured, and the second outer member attached to the outer side of the holder body can be in contact with the first workpiece to perform work, and uniform welding can be performed. The first workpiece and the second workpiece can be applied not only to the conductive member but also to a non-conductive member.

    Moreover, according to the welding apparatus of Claim 14, in addition to the effect of the invention of Claims 9-13 mentioned above, since the outer member is movably attached to the holder main body, Accordingly, the condensing position of the laser beam can be adjusted.

    According to the cutting device of claim 17, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. And a plurality of conductive outer members attached to the outside of the holder body, provided that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. Since the laser beam is irradiated from the tip of the holder body to cut the conductive workpiece part, the laser beam can be transmitted even if the holder body is moved to the vicinity of the workpiece part. Safety can be ensured as much as irradiation can be regulated.

    According to the cutting device of claim 19, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. , An outer member attached to the outside of the holder main body, a second outer member attached to the outer side of the holder main body, and a contact for detecting that the second outer member contacts the workpiece. And a condensing position of the laser beam emitted from the holder body is set at a portion of the workpiece, and the second outer member is in contact with the workpiece. A holder body for cutting a portion of the conductive workpiece by irradiating the laser beam from the tip of the holder body on the condition that the contact detection means detects the contact of the workpiece. The work piece part Even if the work is moved to the vicinity of the workpiece, safety can be ensured by the amount of laser beam irradiation that can be controlled, and the part of the workpiece is not limited to a conductive member, but can be a non-conductive member. Applicable.

    According to the cutting device of claim 20, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. A state in which the outer member is in contact with the workpiece, the outer member being attached to the outside of the holder main body, and a contact detecting means for detecting that the outer member is in contact with the workpiece. The condensing position of the laser beam irradiated from the holder main body is set at the part of the workpiece, and the contact detection means detects the contact of the workpiece, Since the laser beam is irradiated from the tip of the holder body to cut the conductive workpiece part, the laser beam can be irradiated even if the holder body is moved to the vicinity of the workpiece part. Safety that can be regulated Can be secured, moreover, part of the workpiece is not limited to the conductive member, it can also be applied to a non-conductive member.

    Further, according to the cutting device of claim 21, in addition to the effects of the inventions of claims 17 to 21 described above, the outer member is movably attached to the holder main body. Accordingly, the condensing position of the laser beam can be adjusted.

    Further, according to the build-up welding method according to claim 22, the laser beam is guided by a laser beam guiding body provided inside and is irradiated with the laser beam from the tip. A main body and a plurality of conductive outer members attached to the outside of the holder main body, the plurality of conductive outer members being in contact with the conductive workpiece and being energized As a condition, since the laser beam is irradiated from the tip of the holder main body to build up the conductive work piece part, the holder main body is moved to the vicinity of the work piece part and the work is performed. The safety can be ensured by the amount that the laser beam irradiation can be regulated.

    According to the overlay welding method of claim 23, in addition to the effect of the invention of claim 22, in the state where the plurality of conductive outer members are in contact with the conductive workpiece, the holder The condensing position of the laser beam irradiated from the main body is set at the portion of the conductive workpiece, and at least in one conductive outer member of the plurality of conductive outer members. A common passage is formed through which the powder overlay welding material and the shielding gas flow, and the tip of the one conductive outer member faces the overlay welding portion of the conductive workpiece, and the conductive workpiece is covered. Since the parts of the workpiece are build-up welded, it is easy to work, and in the state where a plurality of conductive members are in contact with the conductive workpiece, it is uniform because the laser beam is focused Overlay welding can be performed.

    According to the build-up welding method of claim 24, in addition to the effect of the invention of claim 22, the holder in a state where the plurality of conductive outer members are in contact with the conductive workpiece. The condensing position of the laser beam irradiated from the main body is set at the portion of the conductive workpiece, and at least one of the conductive outer members is shielded within the conductive outer member. A passage through which a gas flows is formed, and the tip of the one conductive outer member and the rod-shaped build-up welding material face the build-up welding portion of the conductive work piece, and the conductive work piece Since the parts are overlaid and welded, it is easy to work, and in the state where a plurality of conductive outer members are in contact with the conductive work piece, a uniform thickness can be obtained by setting the laser beam condensing position. Prime welding can be performed.

    Furthermore, according to the build-up welding method of claim 25, the holder is held outside by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip. A main body, an outer member attached to the outside of the holder main body, a second outer member attached to the outer side of the holder main body, and detecting that the second outer member abuts on the workpiece. Contact detection means, and in a state in which the second outer member is in contact with the workpiece, a condensing position of the laser light emitted from the holder body is set at a part of the workpiece, A holder for overlay welding the part of the workpiece by irradiating the laser beam from the tip of the holder body, provided that the contact detection means detects the contact of the workpiece. The body is the workpiece part Even if the work is moved to the vicinity of the workpiece, safety can be ensured as much as the laser beam irradiation can be restricted, and the second outer member attached to the outer side of the holder body comes into contact with the workpiece. Since the work can be performed, uniform overlay welding can be performed, and the part of the workpiece is not limited to the conductive member, but can be applied to a non-conductive member.

    Furthermore, according to the build-up welding method of claim 26, the holder is held outside by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip. A main body, an outer member attached to the outer side of the holder main body, and contact detecting means for detecting that the outer member contacts the workpiece, wherein the outer member contacts the workpiece. In this state, the condensing position of the laser beam emitted from the holder main body is set at the part of the workpiece, and the contact detection means detects the contact of the workpiece. Since the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece, the laser beam is irradiated even if the holder body is moved to the vicinity of the part of the workpiece. Can be regulated, safety Since the outer member attached to the outside of the holder main body can be in contact with the workpiece and can work, uniform overlay welding can be performed, and the part of the workpiece is Not only a conductive member but also a non-conductive member can be applied.

    Moreover, according to the overlay welding method of Claim 27, in addition to the effect of the invention of Claims 22-26 mentioned above, since the outer member is movably attached to the holder main body, the material of the workpiece The condensing position of the laser beam can be adjusted according to the above.

    According to the build-up welding method of the twenty-ninth aspect, in addition to the effect of the twenty-second aspect of the invention described above, in the state where the plurality of conductive outer members are in contact with the conductive workpiece, the holder The condensing position of the laser beam irradiated from the main body is set at the portion of the conductive workpiece, and at least one of the conductive outer members is shielded within the conductive outer member. A path through which a gas flows is formed, and a tip of the one conductive outer member faces a build-up welding site of the conductive workpiece to which the paste-like build-up welding material is applied, and the conductive Since the parts of the workpiece are welded and welded, it is easy to work, and in the state where the plurality of conductive outer members are in contact with the conductive workpiece, it is set at the condensing position of the laser beam. Therefore, uniform overlay welding can be performed.

    According to the welding method of the thirty-third aspect, the holder main body that is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. A plurality of conductive outer members attached to the outside of the holder main body, and one of the plurality of conductive outer members is connected to the first workpiece and the other outer member. The holder main body is attached to the first workpiece in order to weld the abutted portion by irradiating the laser beam from the tip of the holder main body on the condition that the second workpiece is in contact with the second workpiece. Even if the work is moved to the vicinity of the part where the work piece and the second work piece are brought into contact with each other, the safety can be ensured as much as the irradiation of the laser beam can be regulated.

    According to the welding method of the thirty-first aspect, in addition to the effect of the thirty-first aspect of the invention described above, one outer member of the plurality of conductive outer members becomes the first workpiece and the other In the state where the outer member of each is in contact with the second workpiece, the condensing position of the laser beam irradiated from the holder body is set to the abutted portion, and the plurality of conductive pluralities A common passage through which powdered welding material and shielding gas flow is formed in at least one conductive outer member of the outer member, and the tip of the one member faces the abutted portion, and the protrusion Because the welded parts are welded, it is easy to work, and among the plurality of conductive outer members, one outer member is the first workpiece and the other outer member is the second workpiece. In the contact state, the holder Amount that the condensing position of the laser beam irradiated from the body is set to the portion Tsukiawashi, it is possible to perform uniform welding.

    According to the welding method of the thirty-second aspect, in addition to the effect of the thirty-first aspect of the invention described above, one outer member of the plurality of conductive outer members is the first workpiece and the other is the other. In a state where the outer members of the laser beam are in contact with the second workpiece, the condensing position of the laser beam irradiated from the holder main body is set to a portion where the abutting faces, and a plurality of conductive outer sides Among the members, at least a passage through which a shielding gas flows is formed in the one outer member, the tip of the one outer member and the rod-shaped welding material face the welding portion of the conductive workpiece, Since the parts of the conductive workpiece are welded, it is easy to work, and among the plurality of conductive outer members, one outer member is the first workpiece and the other outer member is the second workpiece. In a state where the workpiece is in contact with each other, Since the condensing position of the laser beam irradiated from the holder main body is set at the abutted portion, uniform welding can be performed.

    According to the welding method of claim 33, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. , An outer member attached to the outside of the holder body, a second outer member attached to the outside of the holder body, and detecting that the second outer member is in contact with the first workpiece. A contact detecting means for performing contact, and in a state in which the second outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder body is at the abutted portion. The welded portion is welded by irradiating the laser beam from the tip of the holder body, provided that the contact detection means detects the contact of the first workpiece. For the holder body Even if the work is moved to the vicinity of the abutted portion, the safety can be ensured by the amount that the laser beam irradiation can be restricted, and the second outer member attached to the outside of the holder body is the first member. Uniform welding can be performed as much as the work can be performed in contact with the workpiece, and the first workpiece and the second workpiece are not limited to conductive members, but can be non-conductive members. Applicable.

    According to the welding method of claim 34, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. And an outer member attached to the outer side of the holder main body, and contact detecting means for detecting that the outer member contacts the first workpiece, wherein the outer member is the first workpiece. In the state of contact with the workpiece, the condensing position of the laser light emitted from the holder body is set at the abutted portion, and the contact detection means detects the contact of the first workpiece. In order to weld the laser beam from the tip of the holder body and weld the abutted part on the condition that the holder body is moved to the vicinity of the abutted part Light irradiation As much as possible, safety can be ensured and uniform overlay welding is performed as much as the second outer member attached to the outside of the holder main body can be in contact with the first workpiece. Moreover, the first workpiece and the second workpiece can be applied not only to the conductive member but also to a non-conductive member.

    Moreover, according to the welding method of Claim 35, in addition to the effect of the invention of Claims 30-34 mentioned above, since the outer member is movably attached to the holder main body, Accordingly, the condensing position of the laser beam can be adjusted.

    Further, according to the cutting method of claim 38, the holder main body, which is held outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. And a plurality of conductive outer members attached to the outside of the holder body, provided that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. Since the laser beam is irradiated from the tip of the holder body to cut the conductive workpiece part, the laser beam can be transmitted even if the holder body is moved to the vicinity of the workpiece part. Safety can be ensured as much as irradiation can be regulated.

    Further, according to the cutting method of claim 40, the holder main body which is gripped outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. , An outer member attached to the outside of the holder main body, a second outer member attached to the outer side of the holder main body, and a contact for detecting that the second outer member contacts the workpiece. And a condensing position of the laser beam emitted from the holder body is set at a portion of the workpiece, and the second outer member is in contact with the workpiece. A holder body for cutting a portion of the conductive workpiece by irradiating the laser beam from the tip of the holder body on the condition that the contact detection means detects the contact of the workpiece. The work piece part Even if the work is moved to the vicinity, safety can be ensured by the amount of laser light irradiation that can be regulated, and the work piece is not limited to a conductive member but can be applied to a non-conductive member. .

    Further, according to the cutting method of claim 41, the holder main body which is gripped outside by hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip. A state in which the outer member is in contact with the workpiece, the outer member being attached to the outside of the holder main body, and a contact detecting means for detecting that the outer member is in contact with the workpiece. The condensing position of the laser beam irradiated from the holder main body is set at the part of the workpiece, and the contact detection means detects the contact of the workpiece, Since the laser beam is irradiated from the tip of the holder body to cut the conductive workpiece part, the laser beam can be irradiated even if the holder body is moved to the vicinity of the workpiece part. Safety that can be regulated Can be secured, moreover, the workpiece is not limited to the conductive member, it can also be applied to a non-conductive member.

    Moreover, according to the cutting method of Claim 42, in addition to the effect of the invention of Claims 39-42 mentioned above, since the outer member is movably attached to the holder main body, Accordingly, the condensing position of the laser beam can be adjusted.

FIG. 1 is a schematic view of an apparatus for carrying out the overlay welding method of one embodiment of the present invention. FIG. 2 is a schematic view showing a state in which the holder body of FIG. 1 is grasped by a hand. FIG. 3 is a schematic view showing a state in which a plurality of conductive outer members attached to the holder main body of FIG. 1 are in contact with a conductive workpiece. FIG. 4 is a schematic view showing a state in which the plurality of conductive outer members in FIG. 3 are extended toward the conductive workpiece. FIG. 5 is a schematic diagram for explaining a state in which the plurality of conductive outer members of FIG. 3 are movably attached to the holder body. FIG. 6 is a schematic view of a state in which the clamping member of FIG. 5 is tightened. FIG. 7 is a schematic view showing a state where the clamping member of FIG. 6 is loosened. FIG. 8 is a schematic front view of another embodiment different from the holder body of FIG. FIG. 9 is a schematic rear view of FIG. FIG. 10 is a schematic front view of another embodiment different from the holder body of FIG. FIG. 11 is a schematic rear view of FIG. FIG. 12 is a schematic diagram showing a state in which a holder body used for a welding method different from the overlay welding method of FIG. 1 is held by hand. FIG. 13 is a schematic view showing a state in which a plurality of conductive outer members attached to the holder main body of FIG. 12 are in contact with the conductive first workpiece and the second workpiece. . FIG. 14 is a schematic view showing a state in which the plurality of conductive outer members in FIG. 13 are extended toward the conductive first and second workpieces. FIG. 15 is a schematic diagram for explaining a state in which the plurality of conductive outer members of FIG. 13 are movably attached to the holder body. FIG. 16 is a schematic view of a state in which the clamping member of FIG. 15 is tightened. FIG. 17 is a schematic view showing a state where the clamping member of FIG. 16 is loosened. 18 is a schematic front view of another embodiment different from the holder body of FIG. FIG. 19 is a schematic rear view of FIG. FIG. 20 is a schematic front view of another embodiment different from the holder body of FIG. FIG. 21 is a schematic rear view of FIG. FIG. 22 is a schematic view showing a state in which a holder body used for a cutting method different from the welding method of FIG. FIG. 23 is a schematic view showing a state in which a plurality of conductive outer members attached to the holder main body of FIG. 22 are in contact with a conductive workpiece. FIG. 24 is a schematic view showing a state in which the plurality of conductive outer members of FIG. 23 are extended toward the conductive workpiece. FIG. 25 is a schematic view for explaining a state in which the plurality of conductive outer members of FIG. 23 are movably attached to the holder body. FIG. 26 is a schematic view of a state in which the clamping member of FIG. 25 is tightened. FIG. 27 is a schematic view showing a state where the clamping member of FIG. 26 is loosened. FIG. 28 is a schematic front view of another embodiment different from the holder body of FIG. FIG. 29 is a schematic rear view of FIG. FIG. 30 is a schematic front view of another embodiment different from the holder body of FIG. FIG. 31 is a schematic rear view of FIG.

An overlay welding method according to an embodiment of the present invention will be described with reference to the drawings (FIGS. 1 to 7). Overlay welding is performed, for example, when repairing a worn portion generated in a mold or the like.
A laser beam irradiation apparatus L shown in FIG. 1 is an apparatus used for a build-up welding method in which a build-up welding material is melted by laser light to a portion of a conductive workpiece (workpiece) 1 and build-up welding is performed. The laser beam generated by the laser pulse oscillator 2 is transmitted by, for example, an optical fiber 3, and the laser beam is irradiated from the tip of the holder body 4 toward the portion of the conductive workpiece 1.
Further, reference numeral 40 denotes a powder build-up welding material supply for supplying powder build-up welding material to the common passage 44a (see FIGS. 3, 6 and 7) in the member 44 through the build-up welding material supply passage 40a. An apparatus (for example, a powder supply apparatus manufactured by Technoserve Corp.).
The common passage 44a is supplied from a shield gas supply device (not shown) such as argon, helium or nitrogen to the common passage 44a in the member 44 through a shield gas supply passage (not shown). It has become. Further, M is a monitor that indicates a build-up welding site of the conductive workpiece (workpiece) 1.

    The conductive workpiece 1 (workpiece) is, for example, a mold or various industrial machine parts, and is composed of a ferrous metal such as steel or stainless steel, or a metal such as aluminum, copper, or an alloy thereof. Is done.

    The laser light oscillator 2 is a known laser device such as a YAG laser device, a carbon dioxide laser device, or a semiconductor laser device.

As shown in FIG. 2, the holder body 4 is large enough to be gripped on the outside, and condenses the laser beam guide 41 and the laser beam inside, and laser welds the overlay welding material. Lens optical systems 42 and 43 are provided, the laser light is guided by the laser light guide 41, and the laser light is irradiated from the tip.
42 is, for example, a collimator lens, and 43 is, for example, a condenser lens.
Further, S shown in FIG. 2 is a hand switch, and 44 and 44 are a plurality of long-sided conductive outer members attached to the outside of the holder body 4 in the longitudinal direction.
Of the plurality of conductive outer members 44, 44, a common passage 44 a through which a powdered welding material and a shielding gas such as argon, helium, and nitrogen flow into at least one conductive outer member (nozzle) 44. So that the tip of one conductive outer member 44 faces the build-up welding part of the conductive work piece 1 so that the build-up welding can be performed on the conductive work piece 1 part. It has become.

Therefore, according to the overlay welding method described above, as shown in FIG. 1, the laser beam irradiation device L is brought into the place where the workpiece 1 is installed, and the laser beam is irradiated toward the workpiece 1. 2, as shown in FIG. 2, the holder body 4 is held by hand, and the conductive outer members 44, 44 are in contact with the electrically conductive workpiece 1,
That is, when the outer member 44, the workpiece 1, and the outer member 44 are electrically connected to each other, it is detected that the plurality of conductive outer members 44, 44 are in contact with the conductive workpiece 1. If there is no such detection, the laser beam is not irradiated from the tip of the holder body 4 even when the hand switch S and the foot switch (not shown) are both ON.
As a result, even if the holder main body 4 is moved to the vicinity of the part of the workpiece 1, the safety can be ensured by the amount that the laser beam irradiation can be regulated.
In other words, the laser light includes a plurality of conductive outer members 44, 44 that contact the conductive workpiece 1, and the outer member 44, the workpiece 1, and the outer member 44 are electrically connected to each other. In a state where the switch S is ON, a laser beam is irradiated from the tip of the holder body 4 so that the overlay welding material can be melted by the laser beam and overlay welding can be performed on a portion of the conductive workpiece 1. It has become.
The overlay welding material is preferably the same material as the workpiece 1 described above and in powder form.

Further, H shown in FIG. 3 is set at a laser beam condensing position in a state where the plurality of conductive outer members 44, 44 are in contact with the conductive workpiece 1.
Therefore, in the state where the plurality of conductive outer members 44, 44 are in contact with the conductive workpiece 1, uniform overlay welding can be performed by the amount set at the laser light focusing position. It is like that.
Moreover, the condensing position of the laser beam described above is, for example, the focal length of the condensing lens 43, or before and after the focal length,
The plurality of conductive outer members 44 and 44 are movably attached to the holder body 4 so that the condensing position of the laser beam can be adjusted according to the material of the workpiece 1 and the like. Further, 100 shown in FIG. 3 is a scale attached to the holder body 4.
The outer member 44 is movably attached to the holder main body 4 by tightening the clamping members K1 and K2 attached to the holder main body 4 via the male screw K3 and not tightening.
The sandwiching members K1 and K2 are loosened by the wrench K4 (FIG. 7), and the plurality of conductive outer members 44 and 44 are moved (from the state of FIG. 3 to the state of FIG. 4) to a distance h (h> H). After the adjustment, the clamping members K1 and K2 are tightened (see FIG. 6).

In the above-described embodiment, the common passage 44 a through which the powdered welding material and the shielding gas flow is formed in at least one of the plurality of conductive outer members 44, 44. But
In the present invention, not limited to this, a shielding gas such as argon, helium, or nitrogen is contained in at least one conductive outer member 44 (nozzle) among the plurality of conductive outer members 44, 44. A flow passage is formed, and the tip of the one conductive outer member (nozzle) 44 faces the build-up welding portion of the work piece 1 to form a rod-like build-up welding material (not shown, but the meat shown in FIG. Overlay welding can be performed by positioning the build-up welding material 20) at the site of the conductive workpiece 1.

In the above-described embodiments, the workpiece 1 has been described as being conductive. However, the present invention is not limited thereto, and the workpiece 1 ′ may be non-conductive.
That is, separately from the outer members 44, 44 attached to the holder body 4, the holder body 4 is provided with second outer members 44 ', 44' having a long longitudinal shape in the longitudinal direction. , 44 ′ may be provided with contact detection means 50 (switch) for detecting contact with the workpiece 1 ′ (see FIGS. 8 and 9). A plurality of second outer members 44 'and 44' are provided, but a single one may be used.
8 and 9, the outer members 44 and 44 attached to the holder main body 4 are preferably plural, but may be one.
The outer members 44 and 44 shown in FIGS. 8 and 9 are similar to the above-described embodiment in that at least one of the outer members 44 and 44 is a powdered welding material in one conductive member 44. A common passage 44a through which the shielding gas flows may be formed, and a passage through which shielding gas such as argon, helium, nitrogen, etc. flows in at least one outer member 44 (nozzle) among the outer members 44, 44. The tip of the one outer member (nozzle) 44 is made to face the build-up welding part of the workpiece 1, and a rod-like build-up welding material (not shown, but the build-up welding material 20 shown in FIG. 10). You may make it build-up-weld by positioning in the site | part of workpiece 1 '.

    8 and 9 also, the laser beam is guided by the laser beam guide 41 provided inside and irradiated with the laser beam from the tip. The holder body 4, outer members 44, 44 attached to the outside of the holder body 4, second outer members 44 ′, 44 ′ attached to the outside of the holder body 4, and the second outer member 44 Contact detecting means 50 for detecting that ', 44' contacts the workpiece 1 ', and the second outer members 44', 44 'are in contact with the workpiece 1' in the state described above. As in the first embodiment (FIGS. 1 to 7), the condensing position of the laser light irradiated from the holder body 4 is set at the site of the workpiece 1 ′, and the contact detection means 50 is used for the workpiece 1 ′. The holder body 4 on condition that contact is detected Since the laser beam is irradiated from the tip and build-up welding is performed on the part of the workpiece 1 ′, the laser beam is irradiated even if the holder body 4 is moved to the vicinity of the part of the workpiece 1 ′. The second outer members 44 ′ and 44 ′ attached to the outer side of the holder body 4 can be in contact with the workpiece 1 ′ and can be worked uniformly. Overlay welding can be performed.

In the above-described embodiment, the contact detection means 50 is a switch that detects contact with the workpiece 1 ′ at the tip of the second outer member 44 ′, 44 ′.
The present invention is not limited to this, and the distance sensor shown in FIG. 11 may be used as the contact detection means 50 ′. The distance sensor 50 ′ is attached to the outside of the holder body 4 (see FIGS. 10 and 11).
The outer members 44 and 44 attached to the holder body 4 are preferably plural, but may be one.

Also by the overlay welding method shown in FIGS. 10 and 11, the laser beam is guided by the laser beam guide body 41 provided inside, and the laser beam is irradiated from the tip. The holder main body 4, an outer member 44 attached to the outside of the holder main body 4, and a contact detection means 50 ′ for detecting that the outer member 44 contacts the workpiece 1 ′ are provided. Is in contact with the workpiece 1 ′, the condensing position of the laser light emitted from the holder body 4 is set at the site of the workpiece 1 ′, as in the above-described embodiment (FIGS. 1 to 7). On the condition that the contact detection means 50 ′ detects the contact of the workpiece 1 ′, the laser beam is irradiated from the tip of the holder body 4 to build up the portion of the workpiece 1 ′. In order to perform welding, the holder body 4 is attached to the work piece 1 ' Even if the work is moved to the side, the safety can be ensured by the amount that the laser beam irradiation can be restricted, and the outer member 44 attached to the outside of the holder body 4 comes into contact with the workpiece 1 ′. Uniform overlay welding can be performed as much as possible.
8 to 11, the rod-shaped overlay welding material 20 can be used, and in some cases, the outside of the above-described embodiment (FIG. 1 to FIG. 7) instead of the rod-shaped overlay welding material 20. Similar to the member 44, a powdered welding material may be supplied from a passage 44a provided in the outer member 44, or a shielding gas may be supplied.
In this embodiment (FIGS. 8 to 11), the same parts as those in the above-described embodiment (FIGS. 1 to 7) are denoted by the same reference numerals, and the description thereof is partially omitted.

In the above-described embodiments, as the powder overlay welding material and the powder welding material, for example, a metal material such as SKD-61 as a metal component, carbon steel such as S50C, various stainless steels, nickel chrome, etc. Alloy metals such as steel and stellite and carbides such as tungsten carbide and titanium carbide as functional components, borides such as titanium boride, ceramics such as alumina and zirconia, simple substances of these, or a mixture of a plurality of these may be used. .
In addition, these powdery overlay welding materials, paste welding materials in which liquids (for example, organic solvents such as water, various alcohols, and various glycols) are mixed with the powder welding materials, or paste welding. Wood may be used. The volume mixing ratio of these powdered overlay welding material or powdered welding material and liquid is, for example, about 1: 1 to 1: 5, which is kneaded well, and from the outer member 44 shown in FIG. You may make it discharge or dripping.
Further, the paste-like build-up welding material or the paste-like welding material is applied with a brush (not shown) without using the pipe-like outer member shown in FIG. It may be discharged or dropped from a container, a dispenser or the like.

1 Conductive work piece 4 Holder body
44 Conductive outer member

The present invention relates to overlay welding apparatus and overlay welding how, particularly relates to a safety deposit welding apparatus and overlay welding how that can perform overlay welding to secure.

The present invention has been made in consideration of the above-described problems, and an object thereof is to provide a build-up welding apparatus and a build-up welding method capable of performing build-up welding while ensuring safety.

The build-up welding apparatus according to claim 1, wherein a build-up welding material is positioned on a conductive work piece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A holder body which is held by a hand and is guided by the laser light guide provided inside and irradiated with the laser light from the tip, and an outer side of the holder body A plurality of electrically conductive outer members attached to the front end of the holder body, provided that the electrically conductive outer members are in contact with the electrically conductive workpiece and are energized. The build-up welding material is a build-up welding material, and the build-up welding material is a paste-like build-up welding material. Is a mixture of powdered overlay welding material and liquid. It is.

Further, the build-up welding apparatus according to claim 2 is configured to position the build-up welding material at a portion of the workpiece, irradiate the build-up welding material with laser light, and melt and weld the build-up welding material. A welding apparatus, which is gripped outside by hand, is guided by the laser beam guide provided inside, and is irradiated with the laser beam from the tip, and on the outside of the holder body An attached outer member; a second outer member attached to the outside of the holder main body; and a contact detection means for detecting that the second outer member contacts the workpiece, In a state where the second outer member is in contact with the workpiece, the condensing position of the laser light emitted from the holder main body is set at the site of the workpiece, and the contact detection means is the workpiece. Condition that contact of objects is detected And, wherein said more distal end of the holder body by irradiating the laser beam are those sites of the workpiece to deposit welding, the buildup welding material is pasty overlay welding material, said paste The overlay welding material is a mixture of a powder overlay welding material and a liquid .

According to a third aspect of the present invention, there is provided a build-up welding apparatus in which a build-up welding material is positioned at a portion of a workpiece, the build-up welding material is irradiated with laser light, and the build-up welding material is melted and welded. A welding apparatus, which is gripped outside by hand, is guided by the laser beam guide provided inside, and is irradiated with the laser beam from the tip, and on the outside of the holder body An attached outer member and contact detection means for detecting that the outer member contacts the workpiece, and irradiation from the holder body in a state where the outer member is in contact with the workpiece. The laser beam is focused from the tip of the holder body on the condition that the condensing position of the laser beam to be processed is set at the part of the workpiece and the contact detection means detects the contact of the workpiece. The workpiece is irradiated with light Site is intended to overlay welding, the buildup welding material is pasty overlay welding material, the paste-like overlay welding material, and the liquid powder deposit welding material are mixed Is.

According to a fourth aspect of the present invention, there is provided a build-up welding apparatus that positions a build-up welding material on a portion of a conductive workpiece, irradiates the build-up welding material with laser light, and melts the build-up welding material. A holder body that is held by a hand, guided by the laser light guide provided inside, and irradiated with the laser light from the tip, and the holder body A plurality of conductive outer members attached to the outside of the holder, and the holder body on condition that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. The portion of the conductive workpiece is build-up welded by irradiating the laser beam from the tip of the wire , the build-up welding material is a paste-type build-up welding material, and the paste-like build-up The welding material is a mixture of powdered overlay welding material and liquid. In the state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder body is a part of the conductive workpiece. And a passage through which a shielding gas flows is formed in at least one conductive outer member of the plurality of conductive outer members, and the tip of the one conductive outer member is The portion of the conductive workpiece is build-up welded facing the build-up weld portion of the conductive workpiece to which the paste-like build-up welding material is applied .

The build-up welding method according to claim 5 is a method of positioning a build-up welding material at a portion of a conductive workpiece, irradiating the build-up welding material with a laser beam, and melting the build-up welding material. A holder body in which the outside is gripped by hand and the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and the holder body A plurality of conductive outer members attached to the outside of the holder, and the holder body on condition that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. The portion of the conductive workpiece is build-up welded by irradiating the laser beam from the tip of the wire , the build-up welding material is a paste-type build-up welding material, and the paste-like build-up The welding material is a mixture of powdered overlay welding material and liquid. Those were.

According to the build-up welding method of claim 6, a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A welding method in which the outside is gripped by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip, and on the outside of the holder body An attached outer member; a second outer member attached to the outside of the holder main body; and a contact detection means for detecting that the second outer member contacts the workpiece, In a state where the second outer member is in contact with the workpiece, the condensing position of the laser light emitted from the holder main body is set at the site of the workpiece, and the contact detection means is the workpiece. Condition that contact of objects is detected And, wherein said more distal end of the holder body by irradiating the laser beam are those sites of the workpiece to deposit welding, the buildup welding material is pasty overlay welding material, said paste The overlay welding material is a mixture of a powder overlay welding material and a liquid .

The overlay welding method according to claim 7 is a method of positioning a build-up welding material at a part of a work piece, irradiating the build-up welding material with a laser beam, and melting and welding the build-up welding material. A welding method in which the outside is gripped by hand, the laser beam is guided by a laser beam guide provided inside, and the laser beam is irradiated from the tip, and on the outside of the holder body An attached outer member and contact detection means for detecting that the outer member contacts the workpiece, and irradiation from the holder body in a state where the outer member is in contact with the workpiece. The laser beam is focused from the tip of the holder body on the condition that the condensing position of the laser beam to be processed is set at the part of the workpiece and the contact detection means detects the contact of the workpiece. The workpiece is irradiated with light Site is intended to overlay welding, the buildup welding material is pasty overlay welding material, the paste-like overlay welding material, and the liquid powder deposit welding material are mixed Is.

Further, the build-up welding method according to claim 8 is a method of positioning a build-up welding material at a portion of a conductive workpiece, irradiating the build-up welding material with a laser beam, and melting the build-up welding material. A holder body in which the outside is gripped by hand and the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and the holder body A plurality of conductive outer members attached to the outside of the holder, and the holder body on condition that the plurality of conductive outer members are in contact with the conductive workpiece and are energized. The portion of the conductive workpiece is build-up welded by irradiating the laser beam from the tip of the wire , the build-up welding material is a paste-type build-up welding material, and the paste-like build-up The welding material is a mixture of powdered overlay welding material and liquid. In the state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder body is a part of the conductive workpiece. And a passage through which a shielding gas flows is formed in at least one conductive outer member of the plurality of conductive outer members, and the tip of the one conductive outer member is The portion of the conductive workpiece is build-up welded facing the build-up weld portion of the conductive workpiece to which the paste-like build-up welding material is applied .

Further, the build-up welding apparatus according to claim 9 is configured to position the build-up welding material on a portion of the conductive workpiece, irradiate the build-up welding material with laser light, and melt the build-up welding material. A holder body that is held by a hand, guided by the laser light guide provided inside, and irradiated with the laser light from the tip, and the holder body A plurality of conductive outer members that are movably attached to the holder body, and the movement directions of the plurality of conductive outer members are substantially parallel to the outer shape of the holder body. Or is substantially parallel to the outer shape of the holder body, or a direction along the outer shape of the holder body, or a longitudinal direction of the holder body, or the plurality of conductive outer members are In contact with a conductive workpiece The conductive work piece and the holder in a direction perpendicular to the conductive work piece or in a state where the plurality of conductive outer members are in contact with the conductive work piece The holder is on the condition that the distance from the tip of the main body approaches or separates, and the conductive outer members are in contact with the conductive workpiece and are energized. The laser beam is irradiated from the front end of the main body, and the part of the conductive workpiece is build-up welded.

The build-up welding apparatus according to claim 10 positions a build-up welding material at a part of a work piece, irradiates the build-up welding material with a laser beam, and melts and welds the build-up welding material. A welding apparatus, which is held outside by a hand, guided by the laser light guide provided inside, and irradiated with the laser light from the tip, and on the outside of the holder body An outer member that is movably attached to the holder main body, and a contact detection means that detects that the outer member contacts the workpiece, and the moving direction of the outer member is: Is substantially parallel to the outer shape of the holder body, is substantially parallel to the outer shape of the holder body, is a direction along the outer shape of the holder body, is a longitudinal direction of the holder body, or is the outer side. The member becomes the workpiece A direction perpendicular to the workpiece in contact with the workpiece or a distance between the workpiece and the tip of the holder body in a state in which the outer member is in contact with the workpiece. In the state where the outer member is in contact with the workpiece, the condensing position of the laser light emitted from the holder body is set at the part of the workpiece, and the contact detection On the condition that the means detects the contact of the workpiece, the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece.

In the build-up welding method according to claim 11, the build-up welding material is positioned at a portion of the conductive workpiece, the build-up welding material is irradiated with laser light, and the build-up welding material is melted. A holder body in which the outside is gripped by hand and the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and the holder body A plurality of conductive outer members that are movably attached to the holder body, and the movement directions of the plurality of conductive outer members are substantially parallel to the outer shape of the holder body. Or is substantially parallel to the outer shape of the holder body, or a direction along the outer shape of the holder body, or a longitudinal direction of the holder body, or the plurality of conductive outer members are Abutting conductive workpiece The conductive workpiece in a state orthogonal to the conductive workpiece in a state or in a state where the plurality of conductive outer members are in contact with the conductive workpiece The direction in which the distance from the tip of the holder body approaches or separates, and the conductive outer members are in contact with the conductive workpiece and are energized. The laser beam is irradiated from the tip of the holder main body, and the portion of the conductive workpiece is build-up welded.

In the overlay welding method according to claim 12, a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A welding method in which the outside is gripped by hand, the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and on the outside of the holder body An outer member that is movably attached to the holder main body, and a contact detection means that detects that the outer member contacts the workpiece, and the moving direction of the outer member is: Is substantially parallel to the outer shape of the holder body, is substantially parallel to the outer shape of the holder body, is a direction along the outer shape of the holder body, is a longitudinal direction of the holder body, or is the outer side. The member becomes the workpiece A direction perpendicular to the workpiece in contact with the workpiece or a distance between the workpiece and the tip of the holder body in a state in which the outer member is in contact with the workpiece. In the state where the outer member is in contact with the workpiece, the condensing position of the laser light emitted from the holder body is set at the part of the workpiece, and the contact detection On the condition that the means detects the contact of the workpiece, the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece.

Further, according to the overlay welding device according to claim 4, in a state in which the conductive plurality of outer members is in contact with the conductive workpiece, the condensing position of the laser beam emitted from the holder body A passage is formed in the at least one conductive outer member of the plurality of conductive outer members, and a passage through which a shielding gas flows is formed. For the build-up welding of the conductive work piece portion with the tip of the conductive outer member facing the build-up weld portion of the conductive work piece coated with the paste-like build-up welding material In addition, it is easy to work, and in the state where a plurality of conductive outer members are in contact with the conductive workpiece, uniform overlay welding can be performed by the amount set at the laser beam condensing position. .

Further, according to the overlay welding apparatus according to claim 9, wherein, since the outer side member is movably mounted to the holder main body, depending on the material of the workpiece, the condensing position of the laser beam Can be adjusted.

Further, according to the overlay welding method according to claim 8, in a state where a conductive plurality of outer members is in contact with the conductive workpiece, the condensing position of the laser beam emitted from the holder body A passage is formed in the at least one conductive outer member of the plurality of conductive outer members, and a passage through which a shielding gas flows is formed. For the build-up welding of the conductive work piece portion with the tip of the conductive outer member facing the build-up weld portion of the conductive work piece coated with the paste-like build-up welding material In addition, it is easy to work, and in the state where a plurality of conductive outer members are in contact with the conductive workpiece, uniform overlay welding can be performed as long as the laser beam is focused on. .

Further, according to the overlay welding method according to claim 11, wherein, since the outer side member is movably mounted to the holder main body, depending on the material of the workpiece, the condensing position of the laser beam Can be adjusted.

Further, the build-up welding apparatus according to claim 9 is configured to position the build-up welding material on a portion of the conductive workpiece, irradiate the build-up welding material with laser light, and melt the build-up welding material. A holder body that is held by a hand, guided by the laser light guide provided inside, and irradiated with the laser light from the tip, and the holder body A plurality of conductive outer members that are movably attached to the holder body , and the moving direction of the plurality of conductive outer members is the longitudinal direction of the holder body The conductive work piece is irradiated with the laser beam from the tip of the holder body, provided that the conductive outer members are in contact with the conductive work piece and are energized. It is for overlay welding of parts of objects

The build-up welding apparatus according to claim 10 positions a build-up welding material at a part of a work piece, irradiates the build-up welding material with a laser beam, and melts and welds the build-up welding material. A welding apparatus, which is held outside by a hand, guided by the laser light guide provided inside, and irradiated with the laser light from the tip, and on the outside of the holder body An outer member that is movably attached to the holder main body, and a contact detection means that detects that the outer member contacts the workpiece, and the moving direction of the outer member is: In the state of the longitudinal direction of the holder main body and the outer member being in contact with the workpiece, a condensing position of laser light emitted from the holder main body is set at a site of the workpiece, The contact detection means On condition that it detects the contact of the object, the site is irradiated with the laser beam from the tip of the holder body the workpiece is to overlay welding.

In the build-up welding method according to claim 11, the build-up welding material is positioned at a portion of the conductive workpiece, the build-up welding material is irradiated with laser light, and the build-up welding material is melted. A holder body in which the outside is gripped by hand and the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and the holder body A plurality of conductive outer members that are movably attached to the holder body , and the moving direction of the plurality of conductive outer members is the longitudinal direction of the holder body The conductive work piece is irradiated with the laser beam from the tip of the holder body, provided that the conductive outer members are in contact with the conductive work piece and are energized. To build up and weld parts of objects .

In the overlay welding method according to claim 12, a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded. A welding method in which the outside is gripped by hand, the laser light is guided by a laser light guide provided inside, and the laser light is irradiated from the tip, and on the outside of the holder body An outer member that is movably attached to the holder main body, and a contact detection means that detects that the outer member contacts the workpiece, and the moving direction of the outer member is: In the state of the longitudinal direction of the holder main body and the outer member being in contact with the workpiece, a condensing position of laser light emitted from the holder main body is set at a site of the workpiece, The contact detection means On condition that it detects the contact of the object, the site is irradiated with the laser beam from the tip of the holder body the workpiece is to overlay welding.

Claims (42)

A welding apparatus for positioning a build-up welding material at a portion of a conductive workpiece, irradiating the build-up welding material with a laser beam, and melting and welding the build-up welding material,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
A plurality of conductive outer members attached to the outside of the holder body;
The conductive workpiece is irradiated with the laser light from the tip of the holder body on the condition that the plurality of conductive outer members are in contact with the conductive workpiece and energized. A build-up welding apparatus characterized by welding the part of the build-up. In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A common passage is formed in at least one conductive outer member among the plurality of conductive outer members, and a powdered welded material and a shield gas flow therethrough, and a tip of the one conductive outer member is formed. The overlay welding apparatus according to claim 1, wherein the overlay welding is performed on a portion of the conductive workpiece facing the overlay welding portion of the conductive workpiece. In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which shield gas flows is formed in at least one conductive outer member among the plurality of conductive outer members, and the tip of the one conductive outer member and the rod-shaped overlay welding material are electrically connected to each other. The build-up welding apparatus according to claim 1, wherein the welded part of the conductive work piece is welded so as to face the welded part of the conductive work piece. A welding apparatus for positioning a build-up welding material at a part of a workpiece, irradiating the build-up welding material with a laser beam, and melting and welding the build-up welding material,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
A second outer member attached to the outside of the holder body;
Contact detecting means for detecting that the second outer member contacts the workpiece,
In a state where the second outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a part of the workpiece,
On the condition that the contact detection means detects the contact of the workpiece, the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece. Overlay welding equipment. A welding apparatus for positioning a build-up welding material at a part of a workpiece, irradiating the build-up welding material with a laser beam, and melting and welding the build-up welding material,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
Contact detecting means for detecting that the outer member contacts the workpiece,
In a state where the outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a site of the workpiece,
On the condition that the contact detection means detects the contact of the workpiece, the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece. Overlay welding equipment. The build-up welding apparatus according to any one of claims 1 to 5, wherein the outer member is movably attached to the holder body. The overlay welding material is a paste-like overlay welding material,
The meat according to claim 1, claim 4, or claim 5, wherein the paste welding material is a mixture of powder welding material and liquid. Prime welding equipment. The build-up welding material is a paste-like build-up welding material, and the paste-like build-up welding material is a mixture of a powder-like build-up welding material and a liquid,
In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which shield gas flows is formed in at least one conductive outer member among the plurality of conductive outer members, and the paste-like overlay welding material is formed at the tip of the one conductive outer member. The build-up welding apparatus according to claim 1, wherein a build-up welding portion of the conductive work piece is faced to the build-up welding portion of the applied conductive work piece. The end surfaces of the conductive first workpiece and the conductive second workpiece are abutted, a welding material is positioned at the abutted portion, the welding material is irradiated with laser light, and the welding material is A welding device for melting and welding,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
A plurality of conductive outer members attached to the outside of the holder body;
Among the plurality of conductive outer members, one outer member is in contact with the first workpiece, and the other outer member is in contact with the second workpiece and is energized. As a condition, a welding apparatus characterized in that the laser beam is irradiated from the tip of the holder body to weld the abutted portion. Among the plurality of conductive outer members, one outer member is irradiated from the holder body in a state where one outer member is in contact with the first workpiece and the other outer member is in contact with the second workpiece. It is set at the part where the condensing position of the laser beam is abutted
With
Of the plurality of conductive outer members, at least one conductive outer member is formed with a common passage through which powdered welding material and shielding gas flow, and the tip of the one member is abutted The welding device according to claim 9, wherein the butted portion is welded. Among the plurality of conductive outer members, one outer member is irradiated from the holder body in a state where one outer member is in contact with the first workpiece and the other outer member is in contact with the second workpiece. It is set at the part where the condensing position of the laser beam is abutted
With
A passage through which shield gas flows is formed in at least one of the plurality of conductive outer members, and the tip of the one outer member and a bar-shaped welding material are welded to the conductive workpiece. The welding apparatus according to claim 9, wherein a part of the conductive workpiece is welded facing the part. Welding in which the end surfaces of the first workpiece and the second workpiece are abutted, a welding material is positioned at the abutted portion, the welding material is irradiated with laser light, and the welding material is melted and welded A device,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
A second outer member attached to the outside of the holder body;
Contact detection means for detecting that the second outer member contacts the first workpiece,
In a state where the second outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder body is set to the abutted portion,
On the condition that the contact detection means detects the contact of the first workpiece, the laser beam is irradiated from the tip of the holder body and the abutted portion is welded. Welding equipment. Welding in which the end surfaces of the first workpiece and the second workpiece are abutted, a welding material is positioned at the abutted portion, the welding material is irradiated with laser light, and the welding material is melted and welded A device,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
Contact detecting means for detecting that the outer member contacts the first workpiece,
In a state where the outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder main body is set to the abutted portion,
On the condition that the contact detection means detects the contact of the first workpiece, the laser beam is irradiated from the tip of the holder body and the abutted portion is welded. Welding equipment. 14. The welding apparatus according to claim 9, wherein the outer member is movably attached to the holder main body. The welding material is a paste-like welding material,
The welding apparatus according to claim 9, 12, or 13, wherein the paste-like welding material is a mixture of a powder-like welding material and a liquid. The welding material is a paste-like welding material, and the paste-like welding material is a mixture of a powder-like welding material and a liquid,
In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which shield gas flows is formed in at least one conductive outer member among the plurality of conductive outer members, and the paste-like overlay welding material is formed at the tip of the one conductive outer member. The welding apparatus according to claim 9, wherein a portion of the conductive workpiece is welded so as to face a welded portion of the applied conductive workpiece. A cutting device for irradiating a portion of the conductive workpiece with laser light to cut the portion of the conductive workpiece,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
A plurality of conductive outer members attached to the outside of the holder body;
The conductive workpiece is irradiated with the laser light from the tip of the holder body on the condition that the plurality of conductive outer members are in contact with the conductive workpiece and energized. The cutting device characterized by cutting the site | part of this. In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which a shielding gas flows is formed in at least one of the plurality of conductive outer members, and a tip of the one conductive outer member is formed on the conductive workpiece. The cutting device according to claim 17, wherein the cutting device cuts a portion of the conductive workpiece facing the portion. A cutting device for irradiating a portion of the workpiece with laser light to cut the portion of the workpiece,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
A second outer member attached to the outside of the holder body;
Contact detecting means for detecting that the second outer member contacts the workpiece,
In a state where the second outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a part of the workpiece,
Irradiating the laser beam from the tip of the holder main body to cut a portion of the conductive workpiece, provided that the contact detection means detects the contact of the workpiece. Cutting device characterized. A cutting device for irradiating a portion of the workpiece with laser light to cut the portion of the workpiece,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
Contact detecting means for detecting that the outer member contacts the workpiece,
In a state where the outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a site of the workpiece,
Irradiating the laser beam from the tip of the holder main body to cut a portion of the conductive workpiece, provided that the contact detection means detects the contact of the workpiece. Cutting device characterized. The cutting device according to any one of claims 17 to 21, wherein the outer member is movably attached to the holder body. It is a welding method in which a build-up welding material is positioned at a portion of a conductive workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
A plurality of conductive outer members attached to the outside of the holder body;
The conductive workpiece is irradiated with the laser light from the tip of the holder body on the condition that the plurality of conductive outer members are in contact with the conductive workpiece and energized. A build-up welding method characterized by overlay welding the part. In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A common passage is formed in at least one conductive outer member among the plurality of conductive outer members, and a powdered welded material and a shield gas flow therethrough, and a tip of the one conductive outer member is formed. 23. The build-up welding method according to claim 22, wherein the build-up welding portion of the conductive work piece is welded to the build-up welding portion of the conductive work piece. In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which shield gas flows is formed in at least one conductive outer member among the plurality of conductive outer members, and the tip of the one conductive outer member and the rod-shaped overlay welding material are electrically connected to each other. 23. The build-up welding method according to claim 22, wherein the build-up welding portion of the conductive work piece is faced to build-up welding of the conductive work piece portion. It is a welding method in which a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
A second outer member attached to the outside of the holder body;
Contact detecting means for detecting that the second outer member contacts the workpiece,
In a state where the second outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a part of the workpiece,
On the condition that the contact detection means detects the contact of the workpiece, the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece. Overlay welding method. It is a welding method in which a build-up welding material is positioned at a part of a workpiece, the build-up welding material is irradiated with a laser beam, and the build-up welding material is melted and welded,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
Contact detecting means for detecting that the outer member contacts the workpiece,
In a state where the outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a site of the workpiece,
On the condition that the contact detection means detects the contact of the workpiece, the laser beam is irradiated from the tip of the holder body to build-up the part of the workpiece. Overlay welding method. 27. The overlay welding method according to any one of claims 22 to 26, wherein the outer member is movably attached to the holder body. The overlay welding material is a paste-like overlay welding material,
27. The meat according to claim 22, 25, or 26, wherein the paste build-up welding material is a mixture of a powder build-up welding material and a liquid. Prime welding method. The build-up welding material is a paste-like build-up welding material, and the paste-like build-up welding material is a mixture of a powder-like build-up welding material and a liquid,
In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which shield gas flows is formed in at least one conductive outer member among the plurality of conductive outer members, and the paste-like overlay welding material is formed at the tip of the one conductive outer member. 23. The build-up welding method according to claim 22, wherein build-up welding is performed on a portion of the conductive workpiece facing the build-up weld portion of the applied conductive workpiece. The end surfaces of the conductive first workpiece and the conductive second workpiece are abutted, a welding material is positioned at the abutted portion, the welding material is irradiated with laser light, and the welding material is A welding method for melting and welding,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
A plurality of conductive outer members attached to the outside of the holder body;
Among the plurality of conductive outer members, one outer member is in contact with the first workpiece, and the other outer member is in contact with the second workpiece and is energized. As a condition, the laser beam is irradiated from the tip of the holder body to weld the abutted portion. Among the plurality of conductive outer members, one outer member is irradiated from the holder body in a state where one outer member is in contact with the first workpiece and the other outer member is in contact with the second workpiece. It is set at the part where the condensing position of the laser beam is abutted
With
Of the plurality of conductive outer members, at least one conductive outer member is formed with a common passage through which powdered welding material and shielding gas flow, and the tip of the one member is abutted The welding method according to claim 30, wherein the butted portion is welded. Among the plurality of conductive outer members, one outer member is irradiated from the holder body in a state where one outer member is in contact with the first workpiece and the other outer member is in contact with the second workpiece. It is set at the part where the condensing position of the laser beam is abutted
With
A passage through which shield gas flows is formed in at least one of the plurality of conductive outer members, and the tip of the one outer member and a bar-shaped welding material are welded to the conductive workpiece. 31. The welding method according to claim 30, wherein a portion of the conductive workpiece is welded facing the portion. Welding in which the end surfaces of the first workpiece and the second workpiece are abutted, a welding material is positioned at the abutted portion, the welding material is irradiated with laser light, and the welding material is melted and welded A method,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
A second outer member attached to the outside of the holder body;
Contact detection means for detecting that the second outer member contacts the first workpiece,
In a state where the second outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder body is set to the abutted portion,
On the condition that the contact detection means detects the contact of the first workpiece, the laser beam is irradiated from the tip of the holder body and the abutted portion is welded. Welding method. Welding in which the end surfaces of the first workpiece and the second workpiece are abutted, a welding material is positioned at the abutted portion, the welding material is irradiated with laser light, and the welding material is melted and welded A method,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
Contact detecting means for detecting that the outer member contacts the first workpiece,
In a state where the outer member is in contact with the first workpiece, the condensing position of the laser light emitted from the holder main body is set to the abutted portion,
On the condition that the contact detection means detects the contact of the first workpiece, the laser beam is irradiated from the tip of the holder body to weld the abutted portion. A welding method characterized. 35. The welding method according to any one of claims 30 to 34, wherein the outer member is movably attached to the holder body. The welding material is a paste-like welding material,
The welding method according to claim 30, 33, or 34, wherein the paste welding material is a mixture of a powder welding material and a liquid. The welding material is a paste-like welding material, and the paste-like welding material is a mixture of a powder-like welding material and a liquid,
In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which shield gas flows is formed in at least one conductive outer member among the plurality of conductive outer members, and the paste-like overlay welding material is formed at the tip of the one conductive outer member. 31. The welding method according to claim 30, wherein a portion of the conductive workpiece is welded facing a welded portion of the applied conductive workpiece. A cutting method in which a portion of the conductive workpiece is irradiated with laser light to cut the portion of the conductive workpiece,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
A plurality of conductive outer members attached to the outside of the holder body;
The conductive workpiece is irradiated with the laser light from the tip of the holder body on the condition that the plurality of conductive outer members are in contact with the conductive workpiece and energized. A cutting method characterized by cutting the site. In a state where the plurality of conductive outer members are in contact with the conductive workpiece, the condensing position of the laser light irradiated from the holder main body is set at the portion of the conductive workpiece.
With
A passage through which a shielding gas flows is formed in at least one of the plurality of conductive outer members, and a tip of the one conductive outer member is formed on the conductive workpiece. 39. The cutting method according to claim 38, wherein a portion of the conductive workpiece is cut facing the portion. A cutting method of irradiating a portion of a workpiece with laser light to cut the portion of the workpiece,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
A second outer member attached to the outside of the holder body;
Contact detecting means for detecting that the second outer member contacts the workpiece,
In a state where the second outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a part of the workpiece,
Irradiating the laser beam from the tip of the holder main body to cut a portion of the conductive workpiece, provided that the contact detection means detects the contact of the workpiece. Cutting method characterized. A cutting method of irradiating a portion of a workpiece with laser light to cut the portion of the workpiece,
A holder main body that is gripped on the outside by the hand, is guided by the laser light guide provided inside, and is irradiated with the laser light from the tip,
An outer member attached to the outside of the holder body;
Contact detecting means for detecting that the outer member contacts the workpiece,
In a state where the outer member is in contact with the workpiece, a condensing position of the laser light irradiated from the holder main body is set at a site of the workpiece,
Irradiating the laser beam from the tip of the holder main body to cut a portion of the conductive workpiece, provided that the contact detection means detects the contact of the workpiece. Cutting method characterized. The cutting method according to any one of claims 39 to 41, wherein the outer member is movably attached to the holder body.

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