WO2019097810A1 - Plate material welding method and plate material welding device - Google Patents

Plate material welding method and plate material welding device Download PDF

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Publication number
WO2019097810A1
WO2019097810A1 PCT/JP2018/032176 JP2018032176W WO2019097810A1 WO 2019097810 A1 WO2019097810 A1 WO 2019097810A1 JP 2018032176 W JP2018032176 W JP 2018032176W WO 2019097810 A1 WO2019097810 A1 WO 2019097810A1
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WO
WIPO (PCT)
Prior art keywords
plate
welding
pressing
plate material
flange member
Prior art date
Application number
PCT/JP2018/032176
Other languages
French (fr)
Japanese (ja)
Inventor
徹 家成
康弘 桜田
朝田　博
Original Assignee
日新製鋼株式会社
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Publication of WO2019097810A1 publication Critical patent/WO2019097810A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work

Definitions

  • the present invention relates to, for example, a method of welding a plate material used when manufacturing a welded shaped steel such as a welded J-shaped steel, and a welding device for the plate material.
  • Patent Document 1 Conventionally, it has been practiced to manufacture shaped steel by welding plate materials, and an example thereof is disclosed in Patent Document 1.
  • the manufacturing method of the molten steel according to Patent Document 1 relates to the manufacture of H-shaped steel and T-shaped steel.
  • the end of the web material is pressed against the approximate center of the flange material in the width direction, so welding should be performed with the flange material and the web material at right angles to each other. It is possible.
  • Patent Document 1 when the manufacturing method described in Patent Document 1 is applied to the production of an asymmetrical shaped steel such as a J-shaped steel, there is a possibility that welding can not be appropriately performed. Specifically, for example, in the case of manufacturing a J-shaped steel by welding three cut plates (two flange members and one web member), the main surface of the flange member and the end face of the web member are welded . In this case, since the end surface of the web material is welded to a portion (for example, an end) shifted from the center in the width direction of the flange material, the flange material is inclined with respect to the web material, and the pressing portion in such a state Even if welding is performed, there is a risk that appropriate welding can not be performed.
  • a plate welding method is a plate welding method for welding a first plate and a second plate, wherein one main surface of the first plate and an end face of the second plate are mutually pressed.
  • a pressing process, and the first plate material and the second plate material so that the posture of the first plate material is not shifted from the posture suitable for welding due to the pressing process The pressing step of pressing one main surface of the first plate member at a position different from the pressing portion and the posture in which the posture of the first plate member deviates from the posture suitable for welding is suppressed by the pressing step And welding the pressing portion in a stationary state.
  • the posture of the first plate material is suitable for welding due to the pressing step (the step of pressing one main surface of the first plate member and the end surface of the second plate member to each other)
  • One main surface of the first plate member is pressed at a position different from the pressing portion between the first plate member and the second plate member so as to suppress the posture from being deviated from the posture.
  • the posture of the first plate member is suppressed from being a posture deviated from the posture suitable for welding due to the pressing process. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a good condition, and it is possible to preferably manufacture a welded shaped steel of asymmetric shape such as a welded J-shaped steel.
  • the pressing step the step of pressing one main surface of the first plate and the end face of the second plate to each other
  • one of the first plate at a position away from the center in the width direction for example, near the end
  • the present invention is particularly effective when the main surface and the end face of the second plate material are pressed to each other. That is, when one main surface in the “position away from the center in the width direction” of the first plate and the end face of the second plate are pressed against each other, the posture of the first plate deviates from the posture suitable for welding It is easy to get an attitude.
  • the posture of the first plate is effectively suppressed from being shifted from the posture suitable for welding due to the pressing step, and the welding J-shaped Asymmetrically shaped welded shaped steel such as steel can be suitably produced.
  • the pressing means presses the main surface of the first plate and the end face of the second plate against each other, and the posture of the first plate is pressed by the pressing means.
  • One of the first plate members is disposed at a position different from the pressing portion between the first plate member and the second plate member so that the posture deviated from the posture suitable for welding due to the contact is suppressed.
  • the first plate material is produced due to the gravity or the pressing by the pressing means (the one main surface of the first plate material and the end surface of the second plate material being pressed against each other).
  • the pressing means presses one main surface of the first plate at a position different from the pressing portion between the first plate and the second plate Press.
  • the attitude of the first plate material is suppressed from being an attitude that is deviated from the attitude suitable for welding due to the weight and the pressing. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a good condition, and it is possible to preferably manufacture a welded shaped steel of asymmetric shape such as a welded J-shaped steel.
  • the present invention is particularly effective in the case where one main surface and the end face of the second plate at a position away from the center in the width direction (e.g. near the end in the width direction) of the first plate are pressed against each other by pressing means. It is. That is, when one main surface in the “position away from the center in the width direction” of the first plate and the end face of the second plate are pressed against each other, the posture of the first plate deviates from the posture suitable for welding It is easy to get an attitude.
  • the posture of the first plate material is effectively suppressed from being shifted from the posture suitable for welding due to the pressing by the pressing means.
  • An asymmetrically shaped welded shaped steel such as a welded J-shaped steel can be suitably manufactured.
  • the welding unit may further include a support unit, and the welding unit may weld the pressing portion in a state in which the position of the first plate member is not displaced from the position suitable for welding by the support unit.
  • the support means supports the first plate and the second plate so that the position of the first plate is prevented from being deviated from the position suitable for welding due to gravity.
  • plate material shifts from the attitude
  • the apparatus further comprises feeding means for feeding the first plate material and the second plate material to a welding point of the welding means, the pressing means
  • a plurality of pressing members may be included, which are spaced apart from each other in the feeding direction of the plate material.
  • the configuration of (4) it is possible to press the first plate at a plurality of locations in the direction in which the first plate is fed. Thereby, the first plate can be pressed in a more stable state. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a better condition, and more suitably manufacture a welded shape steel of asymmetric shape such as welded J-shaped steel. be able to.
  • one main surface of the first plate is at a position different from the pressing portion between the first plate and the second plate. You may further provide the other side press means which presses the other main surface of an opposite side.
  • the first plate can be pressed in a more stable state. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a better condition, and more suitably manufacture a welded shape steel of asymmetric shape such as welded J-shaped steel. be able to.
  • the plates when manufacturing an asymmetrical welded shaped steel such as a welded J-shaped steel, the plates can be suitably welded.
  • FIG. 2A is a view showing a welded state. It is a figure which expands and shows a part of FIG. 2B. It is a figure explaining the welding head in the board material welding device concerning a 1st embodiment of the present invention. It is a typical side top view showing the important section of the plate welding device concerning a 1st embodiment of the present invention.
  • the plate material welding apparatus according to the present invention is used, for example, in the manufacture of a welded shaped steel (a shaped steel produced by welding plate materials).
  • the following description demonstrates the case where the board
  • plate material welding apparatus which concerns on this invention is not limited to manufacture of a weld-shaped steel, It is also possible to use for manufacture of another product.
  • the plate welding apparatus 100 (see FIG. 1) according to the present embodiment is, for example, welding of plate members in order to manufacture a welded steel 200 (see FIG. 2B) such as a welded J steel (J steel manufactured by welding). Is an apparatus for welding.
  • a welded steel 200 such as a welded J steel (J steel manufactured by welding).
  • a welded J steel J steel manufactured by welding.
  • the welding head for example, apparatus which irradiates a laser beam
  • the welded shape steel manufactured by the plate welding device 100 is not limited to non-symmetrically shaped welded shape steels such as welded J-shaped steel (see FIG. 2B), and may be other types of welded shape steels. It may be.
  • a welded J-shaped steel (hereinafter referred to as “welded J-shaped steel 200”) comprises a first flange member 201, a second flange member 202, and a web member 203, as illustrated in FIGS. 2A and 2B. Manufactured by welding.
  • Each of the first flange 201, the second flange member 202, and the web member 203 is, for example, a long flat plate member (cutting plate) previously cut into a predetermined length.
  • the width W1 (see FIG.
  • first flange member 201 is set to a value smaller than the width W2 of the second flange member 202.
  • the first flange member 201 is included in the "first plate member” of the present invention
  • the web member 203 is included in the "second plate member” of the present invention. In the following description, welding of the first flange member 201 and the web member 203 will be described in detail, and detailed description of welding of the second flange member 202 and the web member 203 will be omitted.
  • first main surface 2010 In welded J-shaped steel 200, one main surface 2010 (see FIG. 2A) of first flange member 201 and the end face (see FIG. 2A) of web member 203 are welded. Specifically, a position (width direction center C from the width direction center C apart from the width direction center C (see FIG. 2A) on the one main surface 2010 (hereinafter referred to as "first main surface 2010") And the end face (see FIG. 2A) of the web material 203 are welded. In the example shown in FIGS. 2A and 2B, a portion of the first major surface 2010 near the end in the width direction is welded to the end surface of the web material 203.
  • the end of the first flange member 201 may slightly protrude from the web member 203 or may not protrude. Good.
  • the amount of projection S is not particularly limited.
  • first main surface 2010 one main surface 2010 of the first flange member 201 is referred to as “first main surface 2010”.
  • second main surface 2011 the other main surface which is the surface on the opposite side to the first main surface 2010 in the first flange member 201 is referred to as “second main surface 2011”.
  • the second flange member 202 has one main surface 2020 (see FIG. 2A) which is a surface to be welded to the web material 203 and the other main surface 2021 which is the surface on the opposite side to the one main surface 2020 Shall have One main surface 2020 is referred to as “welding side main surface 2020”, and the other main surface 2021 is referred to as “anti-welding side main surface 2021”.
  • the plate welding apparatus 100 includes a plurality of feed rolls for feeding the first flange member 201, the second flange member 202, and the web member 203 toward the welding points WP1 and WP2 (see FIG. 3) of the welding head 300, and the welding points.
  • Anti-welding of the squeeze roll 400 (see FIG. 4) pressing the second main surface 2011 of the first flange member 201 fed into WP1 toward the web member 203 and the second flange member 202 fed into welding point WP2
  • a squeeze roll (not shown) for pressing the side main surface 2021 (see FIG. 2A) to the web material 203 side, and a side disposed upstream of the squeeze roll 400 in the feeding direction and downstream of the feeding roll 500 in the feeding direction
  • the roll 600 see FIGS. 1 and 4) and the presser roll 700 (see FIG. 1); 00 and the support base 800 for supporting the opposite side, and a welding head 300 (see FIG. 3) for irradiating a laser beam to the welding point WP1,
  • the plurality of feed rolls are, for example, a feed roll (not shown) that feeds the first flange member 201 toward the welding point WP1, and a feed roll (not shown) that feeds the second flange member 202 toward the welding point WP2. , And the feed roll 500 (see FIG. 1) for feeding the web material 203 toward the welding points WP1 and WP2.
  • the plurality of feed rolls are driven by, for example, a motor.
  • a plurality of feed rolls are included in the "feed means" of the present invention.
  • the squeeze roll 400 rotates in the direction indicated by the arrow B (counterclockwise in the illustrated example) while pressing the second main surface 2011 of the first flange member 201.
  • the squeeze roll 400 cooperates with the above-mentioned squeeze roll (not shown) for pressing the anti-welding side main surface 2021 of the second flange member 202, and the width direction end of the first main surface 2010 of the first flange member 201.
  • the portion near the portion and the end face 2030 of the web material 203 are pressed against each other.
  • the squeeze roll 400 presses the second main surface 2011 of the first flange member 201
  • the non-squeeze squeeze roll presses the non-welding side main surface 2021 of the second flange member 202, thereby the web member 203 ( The end surface of FIG. 2A and FIG. 2B) and the first main surface 2010 of the first flange member 201 are pressed against each other.
  • the squeeze roll 400 is disposed, for example, to extend in the vertical direction, as shown in FIG.
  • the squeeze roll 400 is formed to have a length longer than the full width of the first flange member 201.
  • the squeeze roll 400 is disposed at a position where it can face the first flange member 201 over the entire width of the first flange member 201.
  • the squeeze roll 400 is included in the "pushing means" of the present invention.
  • a portion of the first main surface 2010 of the first flange member 201 which is separated in the width direction from the width center C (see FIG. 2A) (displaced in the width direction) and the end face 2030 of the web member 203 are mutually pressed.
  • the posture of the first flange member 201 deviates from the posture suitable for welding (for example, the posture shown by the two-dot chain line in FIG. 6) (for example, the posture shown by the solid line in FIG.
  • the portion of the first flange member 201 opposite to the web member 203 is a squeeze roll.
  • the first flange member 201 While the first flange member 201 is inclined away from 400, the first flange member 201 may be displaced in the direction (downward) away from the web member 203 due to gravity. Such a phenomenon may occur as the distance between the mutual pressing portion PP (the portion shown by hatching) of the first flange member 201 and the web member 203 and the center C in the width direction of the first flange member 201 increases. Sex is high. Specifically, when the pressing portion PP is at the widthwise end of the first flange member 201, it is considered to be most likely to occur. If such a phenomenon occurs, there is a possibility that the first flange member 201 and the web member 203 can not be appropriately welded even when irradiated with a laser beam. However, this problem is solved by the side roll 600. The reason will be described later.
  • the side roll 600 is a cylindrical pressing surface 601 that presses the first main surface 2010 of the first flange member 201 (the main surface on the side of the web member 203; the main surface on the opposite side to the squeeze roll 400) while rotating. It is a member which has The side roll 600 may be driven to rotate by the frictional force generated with the first flange member 201, or may be rotated by receiving a driving force from a motor or the like. In the example shown in FIG. 1, the side roll 600 is supposed to be driven to rotate.
  • the side roll 600 is included in the "pressing means" of the present invention.
  • the side roll 600 is shown by a solid line in FIG. 6 in which the position of the first flange member 201 deviates from the position suitable for welding (the position shown by the two-dot chain line in FIG. 6) due to the pressing by the squeeze roll 400.
  • the position of the first flange member 201 deviates from the position suitable for welding (the position shown by the two-dot chain line in FIG. 6) due to the pressing by the squeeze roll 400.
  • the first main surface 2010 of the first flange member 201 at a position different from the pressing portion PP (see FIG. 5) between the first flange member 201 and the web member 203 so as to suppress the posture). Press.
  • the surface on the squeeze roll 400 side of the first flange member 201 abuts on the squeeze roll 400 over the entire axial direction of the squeeze roll 400 (so as not to separate from the squeeze roll 400).
  • the flange material 201 is pressed.
  • the posture of the first flange member 201 deviates from the posture suitable for welding (the posture shown by the two-dot chain line in FIG. 6) (the posture shown by the solid line in FIG. ) Is suppressed.
  • the frictional force generated between the first flange member 201 and the squeeze roll 400 is increased. Therefore, it is suppressed that the position of the first flange member 201 deviates from the position suitable for welding (the position shown by the two-dot chain line in FIG. 6) (the position shown by the solid line in FIG. 6).
  • the “position different from the pressing portion PP of the first flange member 201 and the web member 203” described above is, for example, an upstream side of the squeeze roll 400 in the feeding direction of the first flange member 201. It may be a position (see FIG. 4). Furthermore, the “position different from the pressing portion PP” may be a position opposite to the pressing portion PP with respect to the width direction center C (see FIG. 5) of the first flange member 201 (see FIG. 5). In this case, it is possible to effectively suppress the deviation from the posture and position suitable for welding. In the example shown in FIG.
  • the position of the pressing portion PP is a position near one end (upper end) in the width direction of the first flange member 201, and “a position different from the pressing portion PP” Is a position near the other end (lower end) of the first flange member 201 in the width direction.
  • the pressing roll 700 is a member having a cylindrical pressing surface that presses the web material 203 from the side opposite to the side roll 600 (upper side of the web material 203).
  • the support table 800 is a member that is disposed on the side opposite to the pressing roll 700 and supports the web material 203 from the side (lower side) opposite to the pressing roll 700.
  • the welding head 300 (included in the “welding means” of the present invention can irradiate the laser light to the welding point WP1 for welding the first flange member 201 and the web member 203.
  • the first welding head 301 and the second welding head 302 capable of irradiating a laser beam to the welding point WP2 for welding the second flange member 202 and the web member 203 are provided.
  • Laser light is very narrow and has high energy density, and laser light can be used for welding to form a deep molten metal region with a small cross-sectional area. For this reason, when welding the flange members 201 and 202 and the web member 203, welding with high bonding strength is performed by irradiating laser beams from only one side to the welding points WP1 and WP2 as shown in FIG. 3, for example. It also contributes to labor saving of the welding operation.
  • the welding head 300 is not limited to the welding means using a laser beam, It is also possible to use other types of welding means, such as high frequency welding and arc welding.
  • the feed roll (the feed roll for feeding the first flange member 201 and the feed roll 500 for feeding the web member 203 (see FIG. 1)) is driven to weld the first flange member 201 and the web member 203 to the welding point WP1 (see FIG. 4) Send towards.
  • the second main surface 2011 of the first flange member 201 is The squeeze roll 400 is pressed. That is, the first main surface 2010 and the second main surface 2011 are pressed so as to sandwich the first flange member 201 between the squeeze roll 400 and the side roll 600.
  • the posture of the first flange member 201 deviates from the posture suitable for welding (the posture shown by the two-dot chain line in FIG. 6) (the posture shown by the solid line in FIG. And the position of the first flange member 201 deviates from the position suitable for welding (the position indicated by the two-dot chain line in FIG. 6) (the position indicated by the solid line in FIG. 6). Is suppressed. Therefore, the posture and position of the first flange member 201 become the posture and position suitable for welding with the web member 203 (the position of the first flange member 201 shown in FIG. 5).
  • the welding point WP1 is irradiated with laser light by the first welding head 301. Since the posture and position of the first flange member 201 are the posture and position suitable for welding with the web member 203 (the position of the first flange member 201 shown in FIG. 5), the laser beam is applied to the welding point WP1. Laser irradiation can be suitably performed by irradiation.
  • the pressing by the squeeze roll 400 (the pressing of the first main surface 2010 of the first flange member 201 and the end surface 2030 of the web member 203 to each other) Position different from the pressed portion PP between the first flange member 201 and the web member 203 so that the posture of the first flange member 201 is not shifted from the posture suitable for welding (for example, As described above, a position upstream of the pressing portion PP in the feed direction of the first flange member 201 and at a position opposite to the pressing portion PP with respect to the center C in the width direction of the first flange member 201 And the side roll 600 presses the first main surface 2010 of the first flange member 201.
  • the posture and the position of the first flange member 201 are prevented from being shifted from the posture suitable for welding due to the pressing. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a good state, and a welded shape steel of asymmetric shape such as welded J-shaped steel is suitably manufactured. can do. Further, as described above, the side roll 600 presses the first main surface 2010 of the first flange member 201, thereby increasing the frictional force between the squeeze roll 400 and the first flange member 201, thereby The positional deviation of the first flange member 201 downward due to gravity can be suppressed.
  • Second Embodiment A plate welding apparatus 101 according to a second embodiment will be described with reference to FIGS. 6 to 9.
  • the referential mark same as 1st Embodiment is attached
  • the present embodiment differs from the side roll 600 of the first embodiment in the form of the side roll 610.
  • the other configuration is the same as that of the first embodiment.
  • the cylindrical pressing surface 601 pressing the first main surface 2010 of the first flange member 201 and the position of the first flange member 201 are positions suitable for welding due to gravity.
  • a support portion 611 (see FIGS. 7 to 9) for supporting the first flange member 201 is provided so as to suppress deviation from the position (indicated by the two-dot chain line in FIG. 6).
  • the support portion 611 is a disk-like portion provided in a flange shape so as to protrude from the lower end portion of the pressing surface 601.
  • the surface (upper end) of the flange member 201 on the side of the support portion 611 is supported from below by the surface (upper surface) of the support portion 611 on the side of the first flange member 201.
  • the support portion 611 supports the lower end surface of the first flange member 201 from below (see FIG. 9).
  • the position of the first flange member 201 is further suppressed from being deviated from the posture suitable for welding due to the pressing by the squeeze roll 400. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a better condition, and it is possible to make the welded shape steel of asymmetric shape such as welded J-shaped steel It can manufacture more suitably.
  • two side rolls 610 in the second embodiment are arranged at intervals in the feed direction of the first flange member 201.
  • the number of side rolls 610 is not limited to two, and may be three or more.
  • the interval between the side rolls 610 can be set to any value.
  • the side roll 600 in the first embodiment can be used instead of the side roll 610.
  • the first flange member 201 can be pressed at a plurality of locations in the feed direction of the first flange member 201. Thereby, the first flange member 201 can be pressed in a more stable state. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a better condition, and it is possible to make the welded shape steel of asymmetric shape such as welded J-shaped steel It can manufacture more suitably.
  • the plate welding device 103 is configured such that the second flange member 201 is placed at a position different from the pressing portion PP between the first flange member 201 and the web member 203.
  • the other side roll 620 which presses the main surface 2011 of this is provided.
  • the other side roll 620 has a cylindrical pressing surface 621 for pressing the second main surface 2011 of the first flange member 201 and a position suitable for welding because the position of the first flange member 201 is due to gravity (see FIG.
  • a support portion 622 (see FIGS. 11 and 12) for supporting the first flange member 201 from below is provided so as to suppress deviation from the position shown by the two-dot chain line at 6).
  • the other side roll 620 is disposed upstream of the side roll 610 in the feed direction of the first flange member 201. That is, in the feed direction of the first flange member 201, the other side roll 620, the side roll 610, and the squeeze roll 400 are disposed in order from the upstream side. Further, in the feeding direction of the first flange member 201, the other side roll 620, the side roll 610, and the squeeze roll 400 are alternately arranged via the first flange member 201.
  • the distance between the other side roll 620 and the side roll 610 can be set to any value.
  • the number of the other side rolls 620 is not limited to one, and may be two or more. In this case, the interval between the other side rolls 620 can be set to any value. Moreover, it is also possible to replace with the other side roll 620, and to use what does not have the support part 622. FIG.
  • the first flange member 201 can be pressed in a more stable state. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a better condition, and it is possible to make the welded shape steel of asymmetric shape such as welded J-shaped steel It can manufacture more suitably.
  • a height adjustment mechanism for adjusting the height of the side roll 610 may be provided.
  • the height of the first flange member 201 can be adjusted.
  • protrusion amount S the amount by which the width direction end (see FIG. 2C) of the first flange member 201 protrudes from the web member 203
  • protrusion amount S may be zero
  • a height adjustment mechanism may be provided to adjust the height of the other side roll 620.
  • the first flange can be provided. The height of the material 201 can be adjusted more suitably.
  • a position adjustment mechanism (not shown) may be provided to adjust the position of the side roll 610 in the thickness direction of the first flange member 201.
  • a position adjusting mechanism for adjusting the position of the side roll 610 in the thickness direction of the first flange member 201 may be provided.
  • the plate materials can be suitably welded when producing an asymmetrical welded shape steel such as a welded J-shaped steel, for example, the welded J-shaped steel It is possible to easily manufacture welded shaped steels and to contribute to the spread of welded shaped steels.
  • first flange material 2010 one main surface of the first flange material 2011 other main surface of the first flange material 203 web material 2030 end surface of the web material 300 welding head 400 squeeze roll 500 feed roll 600, 610 side roll 620 other side roll

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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  • Laser Beam Processing (AREA)

Abstract

Provided is a plate material welding device with which plate materials can be welded together suitably when manufacturing asymmetrically shaped steel, such as welded J-shaped steel. In addition, provided is a plate material welding method for welding a first plate material and a second plate material, said method comprising: a butting step in which one principle surface of a first plate material and an end surface of a second plate material are butted together; a pressing step in which the one principle surface of the first plate material is pressed at a location other than the abutting portion of the first plate material and the second plate material, such that the orientation of the first plate material is prevented from moving, as a result of the butting step, to an orientation that is shifted from an orientation suitable for welding; and a welding step in which the abutting portion is welded in a state in which the orientation of the first plate material is prevented, by the pressing step, from moving to an orientation that is shifted from an orientation suitable for welding.

Description

板材溶接方法および板材溶接装置Sheet material welding method and sheet material welding apparatus
　本発明は、例えば溶接Ｊ形鋼等の溶接形鋼を製造する際に用いられる板材の溶接方法および当該板材の溶接装置に関する。 The present invention relates to, for example, a method of welding a plate material used when manufacturing a welded shaped steel such as a welded J-shaped steel, and a welding device for the plate material.
　従来、形鋼を板材の溶接によって製造することが行われており、特許文献１にはその一例が開示されている。 Conventionally, it has been practiced to manufacture shaped steel by welding plate materials, and an example thereof is disclosed in Patent Document 1.
　特許文献１に記載の溶接形鋼の製造方法では、フランジ材にウェブ材の端部を押し当てて、その押し当てた部分にレーザ光を照射して溶接形鋼を製造する。 In the method of manufacturing a welded shaped steel described in Patent Document 1, the end portion of the web material is pressed against the flange material, and the pressed portion is irradiated with laser light to manufacture a welded shaped steel.
特開２００９－１１９４８５号公報JP, 2009-119485, A
　ところで、特許文献１に記載の溶融形鋼の製造方法は、Ｈ形鋼およびＴ形鋼の製造に関するものである。Ｈ形鋼およびＴ形鋼の製造に際しては、フランジ材の幅方向略中央部にウェブ材の端部を押し当てるので、フランジ材とウェブ材とが互いに直角をなした状態で溶接を行うことが可能である。 By the way, the manufacturing method of the molten steel according to Patent Document 1 relates to the manufacture of H-shaped steel and T-shaped steel. When manufacturing H-shaped steel and T-shaped steel, the end of the web material is pressed against the approximate center of the flange material in the width direction, so welding should be performed with the flange material and the web material at right angles to each other. It is possible.
　しかしながら、特許文献１に記載の製造方法をＪ形鋼のような非対称形状の形鋼を製造する場合に適用すると、適切に溶接を行うことができない虞がある。具体的には、例えば３つの切板（２つのフランジ材と１つのウェブ材）を溶接してＪ形鋼を製造する場合、フランジ材の主面とウェブ材の端面とを溶接することになる。この場合、フランジ材の幅方向の中心からずれた部位（例えば端部）にウェブ材の端面が溶接されるため、ウェブ材に対してフランジ材が傾いてしまい、そのような状態で押し当て部分に溶接を行っても、適切な溶接を行うことができない虞がある。 However, when the manufacturing method described in Patent Document 1 is applied to the production of an asymmetrical shaped steel such as a J-shaped steel, there is a possibility that welding can not be appropriately performed. Specifically, for example, in the case of manufacturing a J-shaped steel by welding three cut plates (two flange members and one web member), the main surface of the flange member and the end face of the web member are welded . In this case, since the end surface of the web material is welded to a portion (for example, an end) shifted from the center in the width direction of the flange material, the flange material is inclined with respect to the web material, and the pressing portion in such a state Even if welding is performed, there is a risk that appropriate welding can not be performed.
　そこで、本願発明では、溶接Ｊ形鋼等の非対称形状の溶接形鋼を製造する際、板材どうしを好適に溶接することができる板材溶接方法および板材溶接装置を提供することを目的とする。 Therefore, it is an object of the present invention to provide a plate material welding method and a plate material welding apparatus capable of suitably welding plate materials when manufacturing an asymmetrical welded shaped steel such as a welded J-shaped steel.
（１）本発明に係る板材溶接方法は、第１板材と第２板材とを溶接する板材溶接方法であって、第１板材の一方の主面と第２板材の端面とを相互に押し当てる押し当て工程と、前記第１板材の姿勢が前記押し当て工程に起因して溶接に適した姿勢からずれた姿勢となることが抑制されるように、前記第１板材と前記第２板材との押し当て部分とは異なる位置で前記第１板材の一方の主面を押圧する押圧工程と、前記第１板材の姿勢が溶接に適した姿勢からずれた姿勢となることが前記押圧工程により抑制された状態で、前記押し当て部分を溶接する溶接工程とを備えることを特徴とする。 (1) A plate welding method according to the present invention is a plate welding method for welding a first plate and a second plate, wherein one main surface of the first plate and an end face of the second plate are mutually pressed. A pressing process, and the first plate material and the second plate material so that the posture of the first plate material is not shifted from the posture suitable for welding due to the pressing process The pressing step of pressing one main surface of the first plate member at a position different from the pressing portion and the posture in which the posture of the first plate member deviates from the posture suitable for welding is suppressed by the pressing step And welding the pressing portion in a stationary state.
　上記（１）の発明によれば、第１板材の姿勢が押し当て工程（第１板材の一方の主面と第２板材の端面とを相互に押し当てる工程）に起因して溶接に適した姿勢からずれた姿勢となることが抑制されるように、第１板材と第２板材との押し当て部分とは異なる位置で第１板材の一方の主面を押圧する。これにより、第１板材の姿勢が押し当て工程に起因して溶接に適した姿勢からずれた姿勢となることが抑制される。したがって、第１板材の一方の主面と第２板材の端面とを良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼を好適に製造することができる。 According to the invention of the above (1), the posture of the first plate material is suitable for welding due to the pressing step (the step of pressing one main surface of the first plate member and the end surface of the second plate member to each other) One main surface of the first plate member is pressed at a position different from the pressing portion between the first plate member and the second plate member so as to suppress the posture from being deviated from the posture. As a result, the posture of the first plate member is suppressed from being a posture deviated from the posture suitable for welding due to the pressing process. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a good condition, and it is possible to preferably manufacture a welded shaped steel of asymmetric shape such as a welded J-shaped steel.
　押し当て工程（第１板材の一方の主面と第２板材の端面とを相互に押し当てる工程）において、第１板材の「幅方向中心から離れた位置（例えば端部付近）」における一方の主面と第２板材の端面とを相互に押し当てる場合に、本発明は特に有効である。すなわち、第１板材の「幅方向中心から離れた位置」における一方の主面と第２板材の端面とを相互に押し当てる場合には、第１板材の姿勢が溶接に適した姿勢からずれた姿勢となり易い。しかしながら、本発明に係る板材溶接方法を採用することで、第１板材の姿勢が押し当て工程に起因して溶接に適した姿勢からずれた姿勢となることが効果的に抑制され、溶接Ｊ形鋼等の非対称形状の溶接形鋼を好適に製造することができる。 In the pressing step (the step of pressing one main surface of the first plate and the end face of the second plate to each other), one of the first plate at a position away from the center in the width direction (for example, near the end) The present invention is particularly effective when the main surface and the end face of the second plate material are pressed to each other. That is, when one main surface in the “position away from the center in the width direction” of the first plate and the end face of the second plate are pressed against each other, the posture of the first plate deviates from the posture suitable for welding It is easy to get an attitude. However, by adopting the plate welding method according to the present invention, the posture of the first plate is effectively suppressed from being shifted from the posture suitable for welding due to the pressing step, and the welding J-shaped Asymmetrically shaped welded shaped steel such as steel can be suitably produced.
（２）本発明に係る板材溶接装置は、第１板材の一方の主面と第２板材の端面とを相互に押し当てる押し当て手段と、前記第１板材の姿勢が前記押し当て手段による押し当てに起因して溶接に適した姿勢からずれた姿勢となることが抑制されるように、前記第１板材と前記第２板材との押し当て部分とは異なる位置で前記第１板材の一方の主面を押圧する押圧手段と、前記第１板材の姿勢が溶接に適した姿勢からずれた姿勢となることが前記押圧手段により抑制された状態で、前記押し当て部分を溶接する溶接手段とを備えることを特徴とする。 (2) In the plate welding apparatus according to the present invention, the pressing means presses the main surface of the first plate and the end face of the second plate against each other, and the posture of the first plate is pressed by the pressing means. One of the first plate members is disposed at a position different from the pressing portion between the first plate member and the second plate member so that the posture deviated from the posture suitable for welding due to the contact is suppressed. A pressing means for pressing the main surface; and a welding means for welding the pressing portion in a state in which the attitude of the first plate material is shifted from the attitude suitable for welding by the pressing means. It is characterized by having.
　上記（２）の発明によれば、重力や、押し当て手段による押し当て（第１板材の一方の主面と第２板材の端面とを相互に押し当てること）に起因して第１板材の姿勢が溶接に適した姿勢からずれた姿勢となることが抑制されるように、第１板材と第２板材との押し当て部分とは異なる位置で押圧手段が第１板材の一方の主面を押圧する。これにより、第１板材の姿勢が重量や上記押し当てに起因して溶接に適した姿勢からずれた姿勢となることが抑制される。したがって、第１板材の一方の主面と第２板材の端面とを良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼を好適に製造することができる。 According to the invention of (2), the first plate material is produced due to the gravity or the pressing by the pressing means (the one main surface of the first plate material and the end surface of the second plate material being pressed against each other). In order to prevent the posture from becoming a posture deviated from the posture suitable for welding, the pressing means presses one main surface of the first plate at a position different from the pressing portion between the first plate and the second plate Press. As a result, it is possible to suppress the attitude of the first plate material from being an attitude that is deviated from the attitude suitable for welding due to the weight and the pressing. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a good condition, and it is possible to preferably manufacture a welded shaped steel of asymmetric shape such as a welded J-shaped steel.
　第１板材の「幅方向中心から離れた位置（例えば幅方向端部付近）」における一方の主面と第２板材の端面とを押し当て手段により相互に押し当てる場合に、本発明は特に有効である。すなわち、第１板材の「幅方向中心から離れた位置」における一方の主面と第２板材の端面とを相互に押し当てる場合には、第１板材の姿勢が溶接に適した姿勢からずれた姿勢となり易い。しかしながら、本発明に係る板材溶接装置を採用することで、押し当て手段による押し当てに起因して第１板材の姿勢が溶接に適した姿勢からずれた姿勢となることが効果的に抑制され、溶接Ｊ形鋼等の非対称形状の溶接形鋼を好適に製造することができる。 The present invention is particularly effective in the case where one main surface and the end face of the second plate at a position away from the center in the width direction (e.g. near the end in the width direction) of the first plate are pressed against each other by pressing means. It is. That is, when one main surface in the “position away from the center in the width direction” of the first plate and the end face of the second plate are pressed against each other, the posture of the first plate deviates from the posture suitable for welding It is easy to get an attitude. However, by adopting the plate welding apparatus according to the present invention, the posture of the first plate material is effectively suppressed from being shifted from the posture suitable for welding due to the pressing by the pressing means. An asymmetrically shaped welded shaped steel such as a welded J-shaped steel can be suitably manufactured.
（３）上記（２）の発明において、前記第１板材の位置が重力に起因して溶接に適した位置からずれることが抑制されるように、前記第１板材および前記第２板材を支持する支持手段をさらに備え、前記溶接手段は、前記第１板材の位置が溶接に適した位置からずれることが前記支持手段により抑制された状態で、前記押し当て部分を溶接するようにしてもよい。 (3) In the invention of the above (2), the first plate material and the second plate material are supported such that the position of the first plate material is prevented from shifting from the position suitable for welding due to gravity. The welding unit may further include a support unit, and the welding unit may weld the pressing portion in a state in which the position of the first plate member is not displaced from the position suitable for welding by the support unit.
　（３）の構成によれば、第１板材の位置が重力に起因して溶接に適した位置からずれることが抑制されるように、支持手段が第１板材および第２板材を支持する。これにより、重力に起因して第１板材の位置が溶接に適した姿勢からずれることが抑制される。したがって、第１板材の一方の主面と第２板材の端面とをより一層良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼をより一層好適に製造することができる。 According to the configuration of (3), the support means supports the first plate and the second plate so that the position of the first plate is prevented from being deviated from the position suitable for welding due to gravity. Thereby, it is suppressed that the position of a 1st board | plate material shifts from the attitude | position suitable for welding resulting from gravity. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a better condition, and more suitably manufacture a welded shape steel of asymmetric shape such as welded J-shaped steel. be able to.
（４）上記（２）または（３）の発明において、前記第１板材および前記第２板材を前記溶接手段の溶接ポイントへ送り込む送り手段をさらに備え、前記押圧手段は、前記送り手段により前記第１板材を送り込む方向において相互に間隔をあけて配置された複数の押圧部材を含んでいてもよい。 (4) In the invention of the above (2) or (3), the apparatus further comprises feeding means for feeding the first plate material and the second plate material to a welding point of the welding means, the pressing means A plurality of pressing members may be included, which are spaced apart from each other in the feeding direction of the plate material.
　（４）の構成によれば、第１板材を送り込む方向における複数の箇所で第１板材を押圧することができる。これにより、第１板材をより安定した状態で押圧することができる。したがって、第１板材の一方の主面と第２板材の端面とをより一層良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼をより一層好適に製造することができる。 According to the configuration of (4), it is possible to press the first plate at a plurality of locations in the direction in which the first plate is fed. Thereby, the first plate can be pressed in a more stable state. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a better condition, and more suitably manufacture a welded shape steel of asymmetric shape such as welded J-shaped steel. be able to.
（５）上記（２）～（４）のいずれか１つの発明において、前記第１板材と前記第２板材との押し当て部分とは異なる位置で、前記第１板材の一方の主面とは反対側の他方の主面を押圧する他方側押圧手段をさらに備えていてもよい。 (5) In the invention according to any one of the above (2) to (4), one main surface of the first plate is at a position different from the pressing portion between the first plate and the second plate. You may further provide the other side press means which presses the other main surface of an opposite side.
　（５）の構成によれば、第１板材をより安定した状態で押圧することができる。したがって、第１板材の一方の主面と第２板材の端面とをより一層良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼をより一層好適に製造することができる。 According to the configuration of (5), the first plate can be pressed in a more stable state. Therefore, it becomes possible to weld one main surface of the first plate material and the end face of the second plate material in a better condition, and more suitably manufacture a welded shape steel of asymmetric shape such as welded J-shaped steel. be able to.
　本願発明によれば、溶接Ｊ形鋼等の非対称形状の溶接形鋼を製造する際、板材どうしを好適に溶接することができる。 According to the present invention, when manufacturing an asymmetrical welded shaped steel such as a welded J-shaped steel, the plates can be suitably welded.
本発明の第１実施形態に係る板材溶接装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the board | plate material welding apparatus which concerns on 1st Embodiment of this invention. 本発明の第１実施形態に係る板材溶接装置により製造されるＪ形鋼について説明する図であり、溶接形鋼の材料である３つの材料を示す図である。It is a figure explaining J steel manufactured with the board material welding device concerning a 1st embodiment of the present invention, and is a figure showing three materials which are materials of welding type steel. 図２Ａが溶接された状態を示す図である。FIG. 2A is a view showing a welded state. 図２Ｂの一部を拡大して示す図である。It is a figure which expands and shows a part of FIG. 2B. 本発明の第１実施形態に係る板材溶接装置における溶接ヘッドについて説明する図である。It is a figure explaining the welding head in the board material welding device concerning a 1st embodiment of the present invention. 本発明の第１実施形態に係る板材溶接装置の要部を示す模式的側平面図である。It is a typical side top view showing the important section of the plate welding device concerning a 1st embodiment of the present invention. 本発明の第１実施形態に係る板材溶接装置の要部を板材の送り方向下流側から見た模式図である。It is the schematic diagram which looked at the principal part of the board | plate material welding apparatus which concerns on 1st Embodiment of this invention from the feed direction downstream side of a board | plate material. サイドロールを備えない板材溶接装置を用いて溶接を行う場合について説明する模式図である。It is a schematic diagram explaining the case where it welds using the board | plate material welding apparatus which is not equipped with a side roll. 本発明の第２実施形態に係る板材溶接装置の要部を示す斜視図である。It is a perspective view which shows the principal part of the board | plate material welding apparatus which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る板材溶接装置の要部を示す模式的平面図である。It is a schematic plan view which shows the principal part of the board | plate material welding apparatus which concerns on 2nd Embodiment of this invention. 本発明の第２実施形態に係る板材溶接装置のサイドロールを示す模式的側面図である。It is a typical side view showing the side roll of the board welding device concerning a 2nd embodiment of the present invention. 本発明の第３実施形態に係る板材溶接装置の要部を示す模式的平面図である。It is a schematic plan view which shows the principal part of the board | plate material welding apparatus which concerns on 3rd Embodiment of this invention. 本発明の第４実施形態に係る板材溶接装置の要部を示す模式的平面図である。It is a schematic plan view which shows the principal part of the board | plate material welding apparatus which concerns on 4th Embodiment of this invention. 本発明の第４実施形態に係る板材溶接装置の他方側サイドロールを示す模式的側面図である。It is a typical side view showing the other side roll of a plate welding device concerning a 4th embodiment of the present invention.
　以下、本発明に係る板材溶接装置について、図面を参照しつつ説明する。 Hereinafter, a plate welding apparatus according to the present invention will be described with reference to the drawings.
　本発明に係る板材溶接装置は、例えば、溶接形鋼（板材どうしを溶接することにより製造される形鋼）の製造に用いられる。以下の説明では、本発明に係る板材溶接装置を溶接形鋼の製造に用いる場合について説明する。なお、本発明に係る板材溶接装置の用途は、溶接形鋼の製造に限定されるものではなく、他の製品の製造に用いることも可能である。 The plate material welding apparatus according to the present invention is used, for example, in the manufacture of a welded shaped steel (a shaped steel produced by welding plate materials). The following description demonstrates the case where the board | plate material welding apparatus which concerns on this invention is used for manufacture of welding-shaped steel. In addition, the use of the board | plate material welding apparatus which concerns on this invention is not limited to manufacture of a weld-shaped steel, It is also possible to use for manufacture of another product.
（第１実施形態）
　第１実施形態に係る板材溶接装置１００について、図１～図６を参照しつつ説明する。本実施形態に係る板材溶接装置１００（図１参照）は、例えば溶接Ｊ形鋼（溶接によって製造されるＪ形鋼）等の溶接形鋼２００（図２Ｂ参照）を製造するために、板材どうしを溶接する装置である。なお、板材溶接装置１００における溶接ヘッド（例えばレーザ光を照射する装置）については、便宜上、図１では図示を省略し、図３において符号３００で示している。 First Embodiment
A plate welding apparatus 100 according to a first embodiment will be described with reference to FIGS. 1 to 6. The plate welding apparatus 100 (see FIG. 1) according to the present embodiment is, for example, welding of plate members in order to manufacture a welded steel 200 (see FIG. 2B) such as a welded J steel (J steel manufactured by welding). Is an apparatus for welding In addition, about the welding head (for example, apparatus which irradiates a laser beam) in the board | plate material welding apparatus 100, illustration is abbreviate | omitted in FIG. 1 and it shows with the code | symbol 300 in FIG. 3 for convenience.
　なお、板材溶接装置１００により製造される溶接形鋼は、溶接Ｊ形鋼（図２Ｂ参照）等の非対対称形状の溶接形鋼に限定されるものではなく、他の種類の溶接形鋼であってもよい。 In addition, the welded shape steel manufactured by the plate welding device 100 is not limited to non-symmetrically shaped welded shape steels such as welded J-shaped steel (see FIG. 2B), and may be other types of welded shape steels. It may be.
　本明細書では、板材溶接装置１００によって製造される溶接形鋼２００が溶接Ｊ形鋼である場合について説明する。溶接Ｊ形鋼（以下、「溶接Ｊ形鋼２００」と称する）は、図２Ａおよび図２Ｂに例示されるように、第１フランジ材２０１と、第２フランジ材２０２と、ウェブ材２０３とを溶接することにより製造される。第１フランジ２０１、第２フランジ材２０２、およびウェブ材２０３は、いずれも、例えば、予め所定の長さに切断された長尺の平板状の板材（切板）である。第１フランジ材２０１の幅Ｗ１（図２Ａ参照）は、第２フランジ材２０２の幅Ｗ２よりも小さい値に設定されている。第１フランジ材２０１は本発明の「第１板材」に含まれ、ウェブ材２０３は本発明の「第２板材」に含まれる。なお、以下の説明では、第１フランジ材２０１とウェブ材２０３とを溶接することについて詳しく説明し、第２フランジ材２０２とウェブ材２０３とを溶接することについては詳しい説明を省略する。 In this specification, the case where the welded shaped steel 200 manufactured by the plate welding device 100 is a welded J-shaped steel will be described. A welded J-shaped steel (hereinafter referred to as “welded J-shaped steel 200”) comprises a first flange member 201, a second flange member 202, and a web member 203, as illustrated in FIGS. 2A and 2B. Manufactured by welding. Each of the first flange 201, the second flange member 202, and the web member 203 is, for example, a long flat plate member (cutting plate) previously cut into a predetermined length. The width W1 (see FIG. 2A) of the first flange member 201 is set to a value smaller than the width W2 of the second flange member 202. The first flange member 201 is included in the "first plate member" of the present invention, and the web member 203 is included in the "second plate member" of the present invention. In the following description, welding of the first flange member 201 and the web member 203 will be described in detail, and detailed description of welding of the second flange member 202 and the web member 203 will be omitted.
　溶接Ｊ形鋼２００においては、第１フランジ材２０１の一方の主面２０１０（図２Ａ参照）とウェブ材２０３の端面（図２Ａ参照）とが溶接される。具体的には、上記一方の主面２０１０（以下、「第１の主面２０１０」と称する）における幅方向中心Ｃ（図２Ａ参照）から幅方向に離れた位置（幅方向中心Ｃから幅方向にずれた位置）と、ウェブ材２０３の端面（図２Ａ参照）とが溶接される。図２Ａおよび図２Ｂに示される例では、第１の主面２０１０における幅方向端部付近の部位と、ウェブ材２０３の端面とが溶接される。第１フランジ材２０１とウェブ材２０３とが溶接された状態において、第１フランジ材２０１の端部（図２Ｃ参照）は、ウェブ材２０３よりも若干突出していてもよいし、突出していなくてもよい。突出している場合、突出量Ｓ（図２Ｃ参照）は特に限定されるものではない。 In welded J-shaped steel 200, one main surface 2010 (see FIG. 2A) of first flange member 201 and the end face (see FIG. 2A) of web member 203 are welded. Specifically, a position (width direction center C from the width direction center C apart from the width direction center C (see FIG. 2A) on the one main surface 2010 (hereinafter referred to as "first main surface 2010") And the end face (see FIG. 2A) of the web material 203 are welded. In the example shown in FIGS. 2A and 2B, a portion of the first major surface 2010 near the end in the width direction is welded to the end surface of the web material 203. In a state in which the first flange member 201 and the web member 203 are welded, the end of the first flange member 201 (see FIG. 2C) may slightly protrude from the web member 203 or may not protrude. Good. When projecting, the amount of projection S (see FIG. 2C) is not particularly limited.
　なお、以下の説明では、第１フランジ材２０１の一方の主面２０１０を「第１の主面２０１０」と称する。また、第１フランジ材２０１における第１の主面２０１０とは反対側の面である他方の主面を「第２の主面２０１１」と称する。また、第２フランジ材２０２は、ウェブ材２０３と溶接される面である一方の主面２０２０（図２Ａ参照）と、一方の主面２０２０とは反対側の面である他方の主面２０２１とを有するものとする。一方の主面２０２０を「溶接側主面２０２０」と称し、他方の主面２０２１を「反溶接側主面２０２１」と称する。 In the following description, one main surface 2010 of the first flange member 201 is referred to as “first main surface 2010”. In addition, the other main surface which is the surface on the opposite side to the first main surface 2010 in the first flange member 201 is referred to as “second main surface 2011”. Further, the second flange member 202 has one main surface 2020 (see FIG. 2A) which is a surface to be welded to the web material 203 and the other main surface 2021 which is the surface on the opposite side to the one main surface 2020 Shall have One main surface 2020 is referred to as “welding side main surface 2020”, and the other main surface 2021 is referred to as “anti-welding side main surface 2021”.
　板材溶接装置１００は、第１フランジ材２０１、第２フランジ材２０２、およびウェブ材２０３を、溶接ヘッド３００の溶接ポイントＷＰ１，ＷＰ２（図３参照）に向けて送り込む複数の送りロールと、溶接ポイントＷＰ１に送り込まれた第１フランジ材２０１の第２の主面２０１１をウェブ材２０３側へ押圧するスクイズロール４００（図４参照）と、溶接ポイントＷＰ２に送り込まれた第２フランジ材２０２の反溶接側主面２０２１（図２Ａ参照）をウェブ材２０３側へ押圧するスクイズロール（図示略）と、スクイズロール４００よりも送り方向上流側で且つ送りロール５００よりも送り方向下流側に配置されたサイドロール６００（図１および図４参照）および押さえロール７００（図１参照）と、ウェブ材２０３を押さえロール７００とは反対側から支持する支持台８００と、溶接ポイントＷＰ１，ＷＰ２にレーザ光を照射する溶接ヘッド３００（図３参照）とを備えている。 The plate welding apparatus 100 includes a plurality of feed rolls for feeding the first flange member 201, the second flange member 202, and the web member 203 toward the welding points WP1 and WP2 (see FIG. 3) of the welding head 300, and the welding points. Anti-welding of the squeeze roll 400 (see FIG. 4) pressing the second main surface 2011 of the first flange member 201 fed into WP1 toward the web member 203 and the second flange member 202 fed into welding point WP2 A squeeze roll (not shown) for pressing the side main surface 2021 (see FIG. 2A) to the web material 203 side, and a side disposed upstream of the squeeze roll 400 in the feeding direction and downstream of the feeding roll 500 in the feeding direction The roll 600 (see FIGS. 1 and 4) and the presser roll 700 (see FIG. 1); 00 and the support base 800 for supporting the opposite side, and a welding head 300 (see FIG. 3) for irradiating a laser beam to the welding point WP1, WP2.
　上記複数の送りロールは、例えば、第１フランジ材２０１を溶接ポイントＷＰ１に向けて送り込む送りロール（図示略）と、第２フランジ材２０２を溶接ポイントＷＰ２に向けて送り込む送りロール（図示略）と、ウェブ材２０３を溶接ポイントＷＰ１，ＷＰ２に向けて送り込む送りロール５００（図１参照）とを含む。これら複数の送りロールは、例えば、モータにより駆動される。複数の送りロールは、本発明の「送り手段」に含まれる。 The plurality of feed rolls are, for example, a feed roll (not shown) that feeds the first flange member 201 toward the welding point WP1, and a feed roll (not shown) that feeds the second flange member 202 toward the welding point WP2. , And the feed roll 500 (see FIG. 1) for feeding the web material 203 toward the welding points WP1 and WP2. The plurality of feed rolls are driven by, for example, a motor. A plurality of feed rolls are included in the "feed means" of the present invention.
　スクイズロール４００は、図４に示されるように、第１フランジ材２０１の第２の主面２０１１を押圧しながら矢印Ｂで示す方向（図示例では反時計回り）に回転する。スクイズロール４００は、第２フランジ材２０２の反溶接側主面２０２１を押圧する上述のスクイズロール（図示略）と協働して、第１フランジ材２０１の第１の主面２０１０における幅方向端部付近の部位とウェブ材２０３の端面２０３０とを相互に押し当てる。つまり、スクイズロール４００が第１フランジ材２０１の第２の主面２０１１を押圧し、図外のスクイズロールが第２フランジ材２０２の反溶接側主面２０２１を押圧することにより、ウェブ材２０３（図２Ａおよび図２Ｂ参照））の端面と、第１フランジ材２０１の第１の主面２０１０とが相互に押し合う状態となる。 As illustrated in FIG. 4, the squeeze roll 400 rotates in the direction indicated by the arrow B (counterclockwise in the illustrated example) while pressing the second main surface 2011 of the first flange member 201. The squeeze roll 400 cooperates with the above-mentioned squeeze roll (not shown) for pressing the anti-welding side main surface 2021 of the second flange member 202, and the width direction end of the first main surface 2010 of the first flange member 201. The portion near the portion and the end face 2030 of the web material 203 are pressed against each other. That is, the squeeze roll 400 presses the second main surface 2011 of the first flange member 201, and the non-squeeze squeeze roll presses the non-welding side main surface 2021 of the second flange member 202, thereby the web member 203 ( The end surface of FIG. 2A and FIG. 2B) and the first main surface 2010 of the first flange member 201 are pressed against each other.
　スクイズロール４００は、図５に示されるように、例えば上下方向に沿って延びるように配置されている。また、スクイズロール４００は、第１フランジ材２０１の全幅よりも長い長さで形成されている。スクイズロール４００は、第１フランジ材２０１の全幅に亘って第１フランジ材２０１と対向可能な位置に配置される。スクイズロール４００は、本発明の「押し当て手段」に含まれる。 The squeeze roll 400 is disposed, for example, to extend in the vertical direction, as shown in FIG. In addition, the squeeze roll 400 is formed to have a length longer than the full width of the first flange member 201. The squeeze roll 400 is disposed at a position where it can face the first flange member 201 over the entire width of the first flange member 201. The squeeze roll 400 is included in the "pushing means" of the present invention.
　第１フランジ材２０１の第１の主面２０１０における幅方向中心Ｃ（図２Ａ参照）から幅方向に離れた（幅方向にずれた）部位と、ウェブ材２０３の端面２０３０とを相互に押し当てると、図６に示されるように、第１フランジ材２０１の姿勢が溶接に適した姿勢（例えば、図６における二点鎖線で示す姿勢）からずれた姿勢（例えば、図６における実線で示す姿勢）となる虞がある。具体的には、第１フランジ材２０１の主面２０１０とウェブ材２０３の端面２０３０との相互の押し当てに起因して、第１フランジ材２０１におけるウェブ材２０３とは反対側の部分がスクイズロール４００から離れるように第１フランジ材２０１が傾斜しながら、重力に起因して第１フランジ材２０１がウェブ材２０３から離れる方向（下方）に位置ずれする虞がある。このような現象は、第１フランジ材２０１とウェブ材２０３との相互の押し当て部分ＰＰ（ハッチングで示す部分）と、第１フランジ材２０１の幅方向中心Ｃとの距離が大きいほど、生じる可能性が高い。具体的には、押し当て部分ＰＰが第１フランジ材２０１の幅方向端部にある場合に最も生じやすいと考えられる。このような現象が生じると、レーザ光を照射しても、第１フランジ材２０１とウェブ材２０３とを適切に溶接することができない虞がある。しかしながら、この問題は、サイドロール６００により解消される。その理由については後述する。 A portion of the first main surface 2010 of the first flange member 201 which is separated in the width direction from the width center C (see FIG. 2A) (displaced in the width direction) and the end face 2030 of the web member 203 are mutually pressed. As shown in FIG. 6, the posture of the first flange member 201 deviates from the posture suitable for welding (for example, the posture shown by the two-dot chain line in FIG. 6) (for example, the posture shown by the solid line in FIG. There is a risk of becoming Specifically, due to the mutual pressing between the main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203, the portion of the first flange member 201 opposite to the web member 203 is a squeeze roll. While the first flange member 201 is inclined away from 400, the first flange member 201 may be displaced in the direction (downward) away from the web member 203 due to gravity. Such a phenomenon may occur as the distance between the mutual pressing portion PP (the portion shown by hatching) of the first flange member 201 and the web member 203 and the center C in the width direction of the first flange member 201 increases. Sex is high. Specifically, when the pressing portion PP is at the widthwise end of the first flange member 201, it is considered to be most likely to occur. If such a phenomenon occurs, there is a possibility that the first flange member 201 and the web member 203 can not be appropriately welded even when irradiated with a laser beam. However, this problem is solved by the side roll 600. The reason will be described later.
　サイドロール６００は、第１フランジ材２０１の第１の主面２０１０（ウェブ材２０３側の主面。スクイズロール４００とは反対側の主面）を、回転しながら押圧する円筒状の押圧面６０１を有する部材である。サイドロール６００は、第１フランジ材２０１との間に発生する摩擦力によって、従動的に回転するものであってもよいし、モータ等の駆動力を受けて回転するものであってもよい。図１に示される例では、サイドロール６００は、従動的に回転するものとされている。サイドロール６００は、本発明の「押圧手段」に含まれる。 The side roll 600 is a cylindrical pressing surface 601 that presses the first main surface 2010 of the first flange member 201 (the main surface on the side of the web member 203; the main surface on the opposite side to the squeeze roll 400) while rotating. It is a member which has The side roll 600 may be driven to rotate by the frictional force generated with the first flange member 201, or may be rotated by receiving a driving force from a motor or the like. In the example shown in FIG. 1, the side roll 600 is supposed to be driven to rotate. The side roll 600 is included in the "pressing means" of the present invention.
　サイドロール６００は、第１フランジ材２０１の姿勢がスクイズロール４００による押し当てに起因して溶接に適した姿勢（図６に二点鎖線で示す姿勢）からずれた姿勢（図６に実線で示す姿勢）となることが抑制されるように、第１フランジ材２０１とウェブ材２０３との押し当て部分ＰＰ（図５参照）とは異なる位置で第１フランジ材２０１の第１の主面２０１０を押圧する。 The side roll 600 is shown by a solid line in FIG. 6 in which the position of the first flange member 201 deviates from the position suitable for welding (the position shown by the two-dot chain line in FIG. 6) due to the pressing by the squeeze roll 400. Of the first main surface 2010 of the first flange member 201 at a position different from the pressing portion PP (see FIG. 5) between the first flange member 201 and the web member 203 so as to suppress the posture). Press.
　すなわち、サイドロール６００は、第１フランジ材２０１におけるスクイズロール４００側の面がスクイズロール４００の軸方向全体に亘ってスクイズロール４００に当接するように（スクイズロール４００から離間しないように）、第１フランジ材２０１を押圧する。このように第１フランジ材２０１を押圧することにより、第１フランジ材２０１の姿勢が溶接に適した姿勢（図６に二点鎖線で示す姿勢）からずれた姿勢（図６に実線で示す姿勢）となることが抑制される。また、このように第１フランジ材２０１を押圧することにより、第１フランジ材２０１とスクイズロール４００との間で発生する摩擦力が大きくなる。したがって、第１フランジ材２０１の位置が溶接に適した位置（図６に二点鎖線で示す位置）からずれた位置（図６に実線で示す位置）となることが抑制される。 That is, in the side roll 600, the surface on the squeeze roll 400 side of the first flange member 201 abuts on the squeeze roll 400 over the entire axial direction of the squeeze roll 400 (so as not to separate from the squeeze roll 400). (1) The flange material 201 is pressed. By pressing the first flange member 201 in this manner, the posture of the first flange member 201 deviates from the posture suitable for welding (the posture shown by the two-dot chain line in FIG. 6) (the posture shown by the solid line in FIG. ) Is suppressed. Further, by pressing the first flange member 201 in this manner, the frictional force generated between the first flange member 201 and the squeeze roll 400 is increased. Therefore, it is suppressed that the position of the first flange member 201 deviates from the position suitable for welding (the position shown by the two-dot chain line in FIG. 6) (the position shown by the solid line in FIG. 6).
　上述の「第１フランジ材２０１とウェブ材２０３との押し当て部分ＰＰとは異なる位置」は、具体的には、例えば、第１フランジ材２０１の送り方向において、スクイズロール４００よりも上流側の位置であるとよい（図４参照）。さらには、「押し当て部分ＰＰとは異なる位置」は、第１フランジ材２０１の幅方向中心Ｃ（図５参照）に対して、押し当て部分ＰＰとは反対側の位置であるとよい（図５参照）。この場合、溶接に適した姿勢および位置からのずれを効果的に抑制することができる。図５に示される例では、押し当て部分ＰＰの位置は、第１フランジ材２０１の幅方向における一方側の端部（上端部）付近の位置とされ、「押し当て部分ＰＰとは異なる位置」は、第１フランジ材２０１の幅方向における他方側の端部（下端部）付近の位置とされている。 Specifically, the “position different from the pressing portion PP of the first flange member 201 and the web member 203” described above is, for example, an upstream side of the squeeze roll 400 in the feeding direction of the first flange member 201. It may be a position (see FIG. 4). Furthermore, the “position different from the pressing portion PP” may be a position opposite to the pressing portion PP with respect to the width direction center C (see FIG. 5) of the first flange member 201 (see FIG. 5). In this case, it is possible to effectively suppress the deviation from the posture and position suitable for welding. In the example shown in FIG. 5, the position of the pressing portion PP is a position near one end (upper end) in the width direction of the first flange member 201, and “a position different from the pressing portion PP” Is a position near the other end (lower end) of the first flange member 201 in the width direction.
　押さえロール７００は、ウェブ材２０３をサイドロール６００とは反対側（ウェブ材２０３の上側）から押圧する円筒状の押圧面を有する部材である。 The pressing roll 700 is a member having a cylindrical pressing surface that presses the web material 203 from the side opposite to the side roll 600 (upper side of the web material 203).
　支持台８００は、押さえロール７００とは反対側に配置され、ウェブ材２０３を押さえロール７００とは反対側（下側）から支持する部材である。 The support table 800 is a member that is disposed on the side opposite to the pressing roll 700 and supports the web material 203 from the side (lower side) opposite to the pressing roll 700.
　溶接ヘッド３００（本発明の「溶接手段」に含まれる）は、図３に示される例では、第１フランジ材２０１とウェブ材２０３とを溶接する溶接ポイントＷＰ１にレーザ光を照射することが可能な第１溶接ヘッド３０１と、第２フランジ材２０２とウェブ材２０３とを溶接する溶接ポイントＷＰ２にレーザ光を照射することが可能な第２溶接ヘッド３０２とを備えている。 In the example shown in FIG. 3, the welding head 300 (included in the “welding means” of the present invention can irradiate the laser light to the welding point WP1 for welding the first flange member 201 and the web member 203. The first welding head 301 and the second welding head 302 capable of irradiating a laser beam to the welding point WP2 for welding the second flange member 202 and the web member 203 are provided.
　レーザ光は非常に狭くかつ高いエネルギー密度を有しており、レーザ光を溶接に用いることで、小さい断面積で深い溶融金属領域を形成することができる。このため、フランジ材２０１，２０２とウェブ材２０３との溶接に際し、例えば図３に示されるように溶接ポイントＷＰ１，ＷＰ２に対して片側のみからレーザ光を照射することで高い接合強度の溶接を行うことが可能であり、溶接作業の省力化にも資することになる。 Laser light is very narrow and has high energy density, and laser light can be used for welding to form a deep molten metal region with a small cross-sectional area. For this reason, when welding the flange members 201 and 202 and the web member 203, welding with high bonding strength is performed by irradiating laser beams from only one side to the welding points WP1 and WP2 as shown in FIG. 3, for example. It also contributes to labor saving of the welding operation.
　なお、溶接ヘッド３００は、レーザ光を用いる溶接手段に限定されるものではなく、高周波溶接、アーク溶接等、他の種類の溶接手段を用いることも可能である。 In addition, the welding head 300 is not limited to the welding means using a laser beam, It is also possible to use other types of welding means, such as high frequency welding and arc welding.
　次に、本実施形態に係る板材溶接装置１００を用いて第１フランジ材２０１とウェブ材２０３とを溶接する板材溶接方法について説明する。第２フランジ材２０２とウェブ材２０３とを溶接する板材溶接方法については説明を省略する。 Next, a plate welding method for welding the first flange member 201 and the web member 203 using the plate welding device 100 according to the present embodiment will be described. The description of the plate welding method for welding the second flange member 202 and the web member 203 is omitted.
　まず、送りロール（第１フランジ材２０１を送り込む送りロール、およびウェブ材２０３を送り込む送りロール５００（図１参照））を駆動して、第１フランジ材２０１およびウェブ材２０３を溶接ポイントＷＰ１（図４参照）に向けて送り込む。 First, the feed roll (the feed roll for feeding the first flange member 201 and the feed roll 500 for feeding the web member 203 (see FIG. 1)) is driven to weld the first flange member 201 and the web member 203 to the welding point WP1 (see FIG. 4) Send towards.
　その送り込みの際、図４および図５に示されるように、第１フランジ材２０１の第１の主面２０１０をサイドロール６００で押圧しながら、第１フランジ材２０１の第２の主面２０１１をスクイズロール４００で押圧する。つまり、第１フランジ材２０１をスクイズロール４００とサイドロール６００とで挟むように第１の主面２０１０および第２の主面２０１１を押圧する。 During the feeding, as shown in FIGS. 4 and 5, while pressing the first main surface 2010 of the first flange member 201 with the side roll 600, the second main surface 2011 of the first flange member 201 is The squeeze roll 400 is pressed. That is, the first main surface 2010 and the second main surface 2011 are pressed so as to sandwich the first flange member 201 between the squeeze roll 400 and the side roll 600.
　第１フランジ材２０１をこのように押圧することで、第１フランジ材２０１の姿勢が溶接に適した姿勢（図６に二点鎖線で示す姿勢）からずれた姿勢（図６に実線で示す姿勢）となることが抑制され、さらには第１フランジ材２０１の位置が溶接に適した位置（図６に二点鎖線で示す姿勢）からずれた位置（図６に実線で示す位置）となることが抑制される。したがって、第１フランジ材２０１の姿勢および位置は、ウェブ材２０３との溶接に適した姿勢および位置（図５に示される第１フランジ材２０１の位置）となる。 By pressing the first flange member 201 in this manner, the posture of the first flange member 201 deviates from the posture suitable for welding (the posture shown by the two-dot chain line in FIG. 6) (the posture shown by the solid line in FIG. And the position of the first flange member 201 deviates from the position suitable for welding (the position indicated by the two-dot chain line in FIG. 6) (the position indicated by the solid line in FIG. 6). Is suppressed. Therefore, the posture and position of the first flange member 201 become the posture and position suitable for welding with the web member 203 (the position of the first flange member 201 shown in FIG. 5).
　次いで、第１溶接ヘッド３０１により溶接ポイントＷＰ１にレーザ光を照射する。第１フランジ材２０１の姿勢および位置は、ウェブ材２０３との溶接に適した姿勢および位置（図５に示される第１フランジ材２０１の位置）となっているので、溶接ポイントＷＰ１にレーザ光を照射することにより、好適にレーザ溶接を行うことができる。 Next, the welding point WP1 is irradiated with laser light by the first welding head 301. Since the posture and position of the first flange member 201 are the posture and position suitable for welding with the web member 203 (the position of the first flange member 201 shown in FIG. 5), the laser beam is applied to the welding point WP1. Laser irradiation can be suitably performed by irradiation.
　以上説明したように、本実施形態によれば、スクイズロール４００による押し当て（第１フランジ材２０１の第１の主面２０１０とウェブ材２０３の端面２０３０とを相互に押し当てること）に起因して第１フランジ材２０１の姿勢が溶接に適した姿勢からずれた状態となることが抑制されるように、第１フランジ材２０１とウェブ材２０３との押し当て部分ＰＰとは異なる位置（例えば、上述のように、第１フランジ材２０１の送り方向における、押し当て部分ＰＰよりも上流側で、且つ、第１フランジ材２０１の幅方向中心Ｃに対して押し当て部分ＰＰとは反対側の位置）でサイドロール６００が第１フランジ材２０１の第１の主面２０１０を押圧する。これにより、第１フランジ材２０１の姿勢および位置が上記押し当てに起因して溶接に適した姿勢からずれた状態となることが抑制される。したがって、第１フランジ材２０１の第１の主面２０１０とウェブ材２０３の端面２０３０とを良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼を好適に製造することができる。また、サイドロール６００が第１フランジ材２０１の第１の主面２０１０を押圧することで、上述のように、スクイズロール４００と第１フランジ材２０１との間の摩擦力が大きくなり、これにより、重力に起因する第１フランジ材２０１の下方への位置ずれを抑制することができる。 As described above, according to the present embodiment, the pressing by the squeeze roll 400 (the pressing of the first main surface 2010 of the first flange member 201 and the end surface 2030 of the web member 203 to each other) Position different from the pressed portion PP between the first flange member 201 and the web member 203 so that the posture of the first flange member 201 is not shifted from the posture suitable for welding (for example, As described above, a position upstream of the pressing portion PP in the feed direction of the first flange member 201 and at a position opposite to the pressing portion PP with respect to the center C in the width direction of the first flange member 201 And the side roll 600 presses the first main surface 2010 of the first flange member 201. As a result, the posture and the position of the first flange member 201 are prevented from being shifted from the posture suitable for welding due to the pressing. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a good state, and a welded shape steel of asymmetric shape such as welded J-shaped steel is suitably manufactured. can do. Further, as described above, the side roll 600 presses the first main surface 2010 of the first flange member 201, thereby increasing the frictional force between the squeeze roll 400 and the first flange member 201, thereby The positional deviation of the first flange member 201 downward due to gravity can be suppressed.
（第２実施形態）
　第２実施形態に係る板材溶接装置１０１について、図６～図９を参照しつつ説明する。なお、第１実施形態と同様の構成については、第１実施形態と同一の参照符号を付して、その説明を省略する。 Second Embodiment
A plate welding apparatus 101 according to a second embodiment will be described with reference to FIGS. 6 to 9. In addition, about the structure similar to 1st Embodiment, the referential mark same as 1st Embodiment is attached | subjected, and the description is abbreviate | omitted.
　本実施形態は、サイドロール６１０の形態が第１実施形態のサイドロール６００と異なる。その他の構成については第１実施形態と同様である。 The present embodiment differs from the side roll 600 of the first embodiment in the form of the side roll 610. The other configuration is the same as that of the first embodiment.
　本実施形態のサイドロール６１０は、第１フランジ材２０１の第１の主面２０１０を押圧する円筒状の押圧面６０１と、第１フランジ材２０１の位置が重力に起因して溶接に適した位置（図６において二点鎖線で示す位置）からずれることが抑制されるように、第１フランジ材２０１を支持する支持部６１１（図７～図９参照）を備えている。 In the side roll 610 of the present embodiment, the cylindrical pressing surface 601 pressing the first main surface 2010 of the first flange member 201 and the position of the first flange member 201 are positions suitable for welding due to gravity. A support portion 611 (see FIGS. 7 to 9) for supporting the first flange member 201 is provided so as to suppress deviation from the position (indicated by the two-dot chain line in FIG. 6).
　支持部６１１は、図７～図９に示される例では、押圧面６０１の下端部にフランジ状に突設された円板状部分とされている。この支持部６１１の第１フランジ材２０１側の面（上面）で、フランジ材２０１における支持部６１１側の面（下端面）を下方から支持する。 In the example shown in FIGS. 7 to 9, the support portion 611 is a disk-like portion provided in a flange shape so as to protrude from the lower end portion of the pressing surface 601. The surface (upper end) of the flange member 201 on the side of the support portion 611 is supported from below by the surface (upper surface) of the support portion 611 on the side of the first flange member 201.
　本実施形態によれば、支持部６１１が第１フランジ材２０１の下端面を下方から支持する（図９参照）。これにより、スクイズロール４００による押し当てに起因して第１フランジ材２０１の位置が溶接に適した姿勢からずれることがより一層抑制される。したがって、第１フランジ材２０１の第１の主面２０１０とウェブ材２０３の端面２０３０とをより一層良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼をより一層好適に製造することができる。 According to this embodiment, the support portion 611 supports the lower end surface of the first flange member 201 from below (see FIG. 9). Thereby, the position of the first flange member 201 is further suppressed from being deviated from the posture suitable for welding due to the pressing by the squeeze roll 400. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a better condition, and it is possible to make the welded shape steel of asymmetric shape such as welded J-shaped steel It can manufacture more suitably.
（第３実施形態）
　第３実施形態に係る板材溶接装置１０２について、図１０を参照しつつ説明する。なお、第２実施形態と同様の構成については、第２実施形態と同一の参照符号を付して、その説明を省略する。 Third Embodiment
A plate welding apparatus 102 according to a third embodiment will be described with reference to FIG. In addition, about the structure similar to 2nd Embodiment, the referential mark same as 2nd Embodiment is attached | subjected, and the description is abbreviate | omitted.
　本実施形態では、第２実施形態におけるサイドロール６１０を、第１フランジ材２０１の送り方向において相互に間隔をあけて２つ配置している。なお、サイドロール６１０の数は２つに限定されるものではなく、３以上の数であってもよい。また、サイドロール６１０どうしの間隔は任意の値に設定可能である。また、サイドロール６１０に代えて、第１実施形態におけるサイドロール６００を用いることも可能である。 In the present embodiment, two side rolls 610 in the second embodiment are arranged at intervals in the feed direction of the first flange member 201. The number of side rolls 610 is not limited to two, and may be three or more. In addition, the interval between the side rolls 610 can be set to any value. Further, instead of the side roll 610, the side roll 600 in the first embodiment can be used.
　本実施形態によれば、第１フランジ材２０１の送り方向における複数の箇所で第１フランジ材２０１を押圧することができる。これにより、第１フランジ材２０１をより安定した状態で押圧することができる。したがって、第１フランジ材２０１の第１の主面２０１０とウェブ材２０３の端面２０３０とをより一層良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼をより一層好適に製造することができる。 According to the present embodiment, the first flange member 201 can be pressed at a plurality of locations in the feed direction of the first flange member 201. Thereby, the first flange member 201 can be pressed in a more stable state. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a better condition, and it is possible to make the welded shape steel of asymmetric shape such as welded J-shaped steel It can manufacture more suitably.
（第４実施形態）
　第４実施形態に係る板材溶接装置１０３について、図１１および図１２を参照しつつ説明する。なお、第２実施形態と同様の構成については、第２実施形態と同一の参照符号を付して、その説明を省略する。 Fourth Embodiment
A plate welding apparatus 103 according to the fourth embodiment will be described with reference to FIGS. 11 and 12. In addition, about the structure similar to 2nd Embodiment, the referential mark same as 2nd Embodiment is attached | subjected, and the description is abbreviate | omitted.
　図１１および図１２に示されるように、本実施形態に係る板材溶接装置１０３は、第１フランジ材２０１とウェブ材２０３との押し当て部分ＰＰとは異なる位置で第１フランジ材２０１の第２の主面２０１１を押圧する他方側サイドロール６２０を備えている。 As shown in FIGS. 11 and 12, the plate welding device 103 according to the present embodiment is configured such that the second flange member 201 is placed at a position different from the pressing portion PP between the first flange member 201 and the web member 203. The other side roll 620 which presses the main surface 2011 of this is provided.
　他方側サイドロール６２０は、第１フランジ材２０１の第２の主面２０１１を押圧する円筒状の押圧面６２１と、第１フランジ材２０１の位置が重力に起因して溶接に適した位置（図６において二点鎖線で示す位置）からずれることが抑制されるように、第１フランジ材２０１を下方から支持する支持部６２２（図１１および図１２参照）を備えている。 The other side roll 620 has a cylindrical pressing surface 621 for pressing the second main surface 2011 of the first flange member 201 and a position suitable for welding because the position of the first flange member 201 is due to gravity (see FIG. A support portion 622 (see FIGS. 11 and 12) for supporting the first flange member 201 from below is provided so as to suppress deviation from the position shown by the two-dot chain line at 6).
　他方側サイドロール６２０は、第１フランジ材２０１の送り方向において、サイドロール６１０よりも上流側に配置されている。つまり、第１フランジ材２０１の送り方向において、上流側から順に、他方側サイドロール６２０、サイドロール６１０、スクイズロール４００が配置されている。また、第１フランジ材２０１の送り方向において、他方側サイドロール６２０、サイドロール６１０、スクイズロール４００は、第１フランジ材２０１を介して交互に配置されている。他方側サイドロール６２０とサイドロール６１０との間隔は任意の値に設定可能である。 The other side roll 620 is disposed upstream of the side roll 610 in the feed direction of the first flange member 201. That is, in the feed direction of the first flange member 201, the other side roll 620, the side roll 610, and the squeeze roll 400 are disposed in order from the upstream side. Further, in the feeding direction of the first flange member 201, the other side roll 620, the side roll 610, and the squeeze roll 400 are alternately arranged via the first flange member 201. The distance between the other side roll 620 and the side roll 610 can be set to any value.
　なお、他方側サイドロール６２０の数は１つに限定されるものではなく、２以上の数であってもよい。この場合、他方側サイドロール６２０どうしの間隔は任意の値に設定可能である。また、他方側サイドロール６２０に代えて、支持部６２２を有さないものを用いることも可能である。 Note that the number of the other side rolls 620 is not limited to one, and may be two or more. In this case, the interval between the other side rolls 620 can be set to any value. Moreover, it is also possible to replace with the other side roll 620, and to use what does not have the support part 622. FIG.
　本実施形態によれば、第１フランジ材２０１をより安定した状態で押圧することができる。したがって、第１フランジ材２０１の第１の主面２０１０とウェブ材２０３の端面２０３０とをより一層良好な状態で溶接することが可能となり、溶接Ｊ形鋼等の非対称形状の溶接形鋼をより一層好適に製造することができる。 According to the present embodiment, the first flange member 201 can be pressed in a more stable state. Therefore, it becomes possible to weld the first main surface 2010 of the first flange member 201 and the end face 2030 of the web member 203 in a better condition, and it is possible to make the welded shape steel of asymmetric shape such as welded J-shaped steel It can manufacture more suitably.
　なお、本発明は上記の第１実施形態～第４実施形態に限られるものではない。例えば、第２実施形態～第４実施形態において、サイドロール６１０の高さを調節する高さ調節機構（図示略）を設けてもよい。このような高さ調節機構を設けることにより、第１フランジ材２０１の高さを調節することができる。これにより、第１フランジ材２０１の幅方向端部（図２Ｃ参照）がウェブ材２０３よりも突出する量（突出量Ｓ（図２Ｃ参照）を調節することができる（突出量Ｓはゼロでもよい）。また、第４実施形態において、他方側サイドロール６２０の高さを調節する高さ調節機構（図示略）を設けてもよい。このような高さ調節機構を設けることにより、第１フランジ材２０１の高さをより好適に調節することができる。 The present invention is not limited to the first to fourth embodiments described above. For example, in the second to fourth embodiments, a height adjustment mechanism (not shown) for adjusting the height of the side roll 610 may be provided. By providing such a height adjusting mechanism, the height of the first flange member 201 can be adjusted. Thereby, the amount by which the width direction end (see FIG. 2C) of the first flange member 201 protrudes from the web member 203 (protrusion amount S (see FIG. 2C) can be adjusted (protrusion amount S may be zero) In the fourth embodiment, a height adjustment mechanism (not shown) may be provided to adjust the height of the other side roll 620. By providing such a height adjustment mechanism, the first flange can be provided. The height of the material 201 can be adjusted more suitably.
　また、例えば、第１実施形態において、第１フランジ材２０１の厚み方向における、サイドロール６１０の位置を調節する位置調節機構（図示略）を設けてもよい。このような位置調節機構を設けることにより、第１フランジ材２０１の厚み等に応じて、サイドロール６００の位置を調節することができる。同様に、第２～第４実施形態において、第１フランジ材２０１の厚み方向における、サイドロール６１０の位置を調節する位置調節機構（図示略）を設けてもよい。 For example, in the first embodiment, a position adjustment mechanism (not shown) may be provided to adjust the position of the side roll 610 in the thickness direction of the first flange member 201. By providing such a position adjusting mechanism, the position of the side roll 600 can be adjusted according to the thickness of the first flange member 201 and the like. Similarly, in the second to fourth embodiments, a position adjusting mechanism (not shown) for adjusting the position of the side roll 610 in the thickness direction of the first flange member 201 may be provided.
　本願発明に係る板材溶接方法および板材溶接装置によれば、溶接Ｊ形鋼等の非対称形状の溶接形鋼を製造する際、板材どうしを好適に溶接することができるため、例えば溶接Ｊ形鋼などの溶接形鋼を容易に製造することができ、溶接形鋼の普及に貢献することができる。 According to the plate material welding method and the plate material welding apparatus according to the present invention, the plate materials can be suitably welded when producing an asymmetrical welded shape steel such as a welded J-shaped steel, for example, the welded J-shaped steel It is possible to easily manufacture welded shaped steels and to contribute to the spread of welded shaped steels.
　１００～１０３　　板材溶接装置
　２０１　　　　　　第１フランジ材
　２０１０　　　　　第１フランジ材の一方の主面
　２０１１　　　　　第１フランジ材の他方の主面
　２０３　　　　　　ウェブ材
　２０３０　　　　　ウェブ材の端面
　３００　　　　　　溶接ヘッド
　４００　　　　　　スクイズロール
　５００　　　　　　送りロール
　６００、６１０　　サイドロール
　６２０　　　　　　他方側サイドロール 100 to 103 plate welding apparatus 201 first flange material 2010 one main surface of the first flange material 2011 other main surface of the first flange material 203 web material 2030 end surface of the web material 300 welding head 400 squeeze roll 500 feed roll 600, 610 side roll 620 other side roll

Claims (5)

  1. 　第１板材と第２板材とを溶接する板材溶接方法であって、
    　第１板材の一方の主面と第２板材の端面とを相互に押し当てる押し当て工程と、
    　前記第１板材の姿勢が前記押し当て工程に起因して溶接に適した姿勢からずれた姿勢となることが抑制されるように、前記第１板材と前記第２板材との押し当て部分とは異なる位置で前記第１板材の一方の主面を押圧する押圧工程と、
    　前記第１板材の姿勢が溶接に適した姿勢からずれた姿勢となることが前記押圧工程により抑制された状態で、前記押し当て部分を溶接する溶接工程と
    　を備えることを特徴とする板材溶接方法。     A plate welding method for welding a first plate and a second plate, wherein
    A pressing step of mutually pressing one main surface of the first plate and the end face of the second plate;
    The pressing portion between the first plate and the second plate is such that the posture of the first plate is not deviated from the posture suitable for welding due to the pressing process. A pressing step of pressing one main surface of the first plate member at different positions;
    A welding step of welding the pressing portion in a state in which the posture of the first plate material is displaced from the posture suitable for welding by the pressing process; .
  2. 　第１板材の一方の主面と第２板材の端面とを相互に押し当てる押し当て手段と、
    　前記第１板材の姿勢が前記押し当て手段による押し当てに起因して溶接に適した姿勢からずれた姿勢となることが抑制されるように、前記第１板材と前記第２板材との押し当て部分とは異なる位置で前記第１板材の一方の主面を押圧する押圧手段と、
    　前記第１板材の姿勢が溶接に適した姿勢からずれた姿勢となることが前記押圧手段により抑制された状態で、前記押し当て部分を溶接する溶接手段と
    　を備えることを特徴とする板材溶接装置。     Pressing means for mutually pressing one main surface of the first plate and the end face of the second plate;
    The pressing of the first plate material and the second plate material is performed such that the posture of the first plate material is not shifted from the posture suitable for welding due to the pressing by the pressing means. Pressing means for pressing one main surface of the first plate member at a position different from the portion;
    And a welding means for welding the pressing portion in a state in which the pressing means suppresses that the attitude of the first plate material is deviated from the posture suitable for welding. .
  3. 　前記第１板材の位置が重力に起因して溶接に適した位置からずれることが抑制されるように、前記第１板材および前記第２板材を支持する支持手段をさらに備え、
    　前記溶接手段は、前記第１板材の位置が溶接に適した位置からずれることが前記支持手段により抑制された状態で、前記押し当て部分を溶接する
    　ことを特徴とする請求項２に記載の板材溶接装置。     The first plate further includes supporting means for supporting the first plate and the second plate so that the position of the first plate is prevented from being displaced from the position suitable for welding due to gravity.
    The plate according to claim 2, wherein the welding means welds the pressing portion in a state in which the supporting means suppresses the displacement of the position of the first plate from the position suitable for welding. Welding equipment.
  4. 　前記第１板材および前記第２板材を前記溶接手段の溶接ポイントへ送り込む送り手段をさらに備え、
    　前記押圧手段は、前記送り手段により前記第１板材を送り込む方向において相互に間隔をあけて配置された複数の押圧部材を含むことを特徴とする
    　請求項２または３に記載の板材溶接装置。     It further comprises feeding means for feeding the first plate material and the second plate material to a welding point of the welding means,
    4. The plate welding apparatus according to claim 2, wherein the pressing unit includes a plurality of pressing members which are spaced apart from each other in a direction in which the first plate is fed by the feeding unit.
  5. 　前記第１板材と前記第２板材との押し当て部分とは異なる位置で、前記第１板材の一方の主面とは反対側の他方の主面を押圧する他方側押圧手段をさらに備える
    　ことを特徴とする請求項２～４のいずれか１項に記載の板材溶接装置。     It further comprises another side pressing means for pressing the other main surface opposite to the one main surface of the first plate at a position different from the pressing portion between the first plate and the second plate. The plate material welding apparatus according to any one of claims 2 to 4, characterized in that
PCT/JP2018/032176 2017-11-20 2018-08-30 Plate material welding method and plate material welding device WO2019097810A1 (en)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015072158A1 (en) * 2013-11-14 2015-05-21 日新製鋼株式会社 Device and method for manufacturing welded shaped steel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015072158A1 (en) * 2013-11-14 2015-05-21 日新製鋼株式会社 Device and method for manufacturing welded shaped steel

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