JP4361044B2 - Multiple panel single side welding method - Google Patents

Description

  The present invention supplies a panel after temporarily attaching a plate to be welded onto a flux backing device and / or a copper plate backing device so that the weld line is on the backing device, and from the surface side of the panel. More particularly, the present invention relates to a single panel welding method for supplying a plurality of panels onto a backing device at the same time.

  In a conventional single-sided automatic welding device, a flux backing member in which flux is dispersed and supplied in a toy extending in one direction or a copper plate backing member provided with a copper plate extending in one direction (hereinafter referred to as backing member including both) ) Is placed on the backing member, the panel with the steel plate to be welded is transported, the welding line of the panel is positioned on the backing member and stopped, and then the panel is moved along the welding line. Then, the tacking portion between the plates to be welded is welded by a welding machine that moves in the longitudinal direction of the backing member. Patent Documents 1 and 2 disclose a single-sided automatic welding method using such a single-sided automatic welding apparatus.

Japanese Utility Model Publication No. 53-21616 Japanese Patent No. 3526178

  However, in the single-sided automatic welding methods disclosed in these Patent Documents 1 and 2, one panel on which a plurality of steel plates to be welded are temporarily attached is supplied onto a plurality of rows of backing devices. Since the tacking portion, that is, the welding line is automatically welded by a welding machine, the panel placement (welding preparation) step and the welding step are sequentially performed, and the welding cannot always be performed with high efficiency.

  That is, in this single-sided automatic welding equipment, a plurality of rows of backing devices and a plurality of welding machines can be arranged to simultaneously weld a plurality of panel welding lines (a plurality of tacking portions of three or more steel plates to be welded). For example, if five backing devices are installed, five welding lines in one panel can be welded simultaneously if there are five welding machines. Even if there is one welding machine, it is possible to sequentially weld five welding lines of one panel arranged on the backing device with one welding machine.

  However, in the conventional single-sided welding method, the same applies when the panel size is small, that is, when there is only one weld line in one panel (one temporary attachment portion of two welded steel plates), for example. One panel at a time is supplied onto the backing device, and only one backing device is used, and the remaining backing devices are waiting in vain.

  Further, in the backing device, when the welding process is performed once, the next welding preparation process is performed. For example, in a flux backing device, the flux solidified in the previous welding process is removed, new flux is spread on the underlay flux, the panel is transported above it, and the flux backing member is raised. Then, the preparatory work of pressing against the position of the welding line of the panel is performed. Therefore, since the welding process and the preparation process are performed alternately, the welding machine has a long waiting time, and it cannot be said that the welding operation is being performed efficiently.

  The present invention has been made in view of such problems, and can supply a plurality of panels onto a backing device at the same time, perform welding and preparation simultaneously, and perform high-efficiency single-sided automatic welding. An object of the present invention is to provide a method for welding a plurality of panels on one side.

The multiple panel single-sided welding method according to the present invention includes a backing member extending in one direction and two rows of roller devices provided on both sides of the backing member so as to be driven independently from each other. A single-sided welding apparatus comprising a plurality of backing devices, two rows of outer roller devices provided on both sides of the plurality of backing devices, and a welder for welding a panel disposed on the backing device. , And a plurality of panels to which a plurality of plates to be welded are tack welded, and adjacent side edges of adjacent panels are individually positioned on two rows of roller devices of one backing device. In this manner, the panels are carried into the backing device and the panels are simultaneously or sequentially single-side welded, and the two rows of roller devices of the one backing device located between adjacent panels It is used for supporting the side edge of the panel.

  In this multi-panel single-side welding method, when the number of panels supplied simultaneously on the backing device is M and the total number of welding lines of each panel is N, the number of backing devices is (N + M-1). The above is preferable.

Further, in the above-described single-side welding method, a carrying-in step of carrying the panel onto the backing device, a welding preparation step of placing the backing member by pressing the backing member against the lower surface of the panel, a welding step for one-side welding the panel by welding machine, has a delivery step for delivering said panel from said backing device on classifies panel of the part of the plurality pieces of panels in the first group, the remaining of the panel wherein the first group are classified into the second group to be carried into the different backing device on, the first group of periods that are carried on one side welding by the welding machine for panels, said first quasi pre SL welding the two groups panel Bei, loading of the panel, or performs the transmission of the panel, before Symbol period to have performed one-side welding by the welding machine for the panel of the second group, the first group Before welding preparation for the panel of Panel loading of, or by performing the transmission of the panel, may be configured to sequentially perform a welding panels of the weld and the second group of the first group of panels.

  The number of welders may be determined according to the required production amount of weld lines per day, but is equal to or greater than the number of weld lines of the panel having the largest number of weld lines, or the number of welders is It is more effective if it is equal to or greater than the sum of the number of weld lines of all panels.

  According to the present invention, a plurality of panels can be automatically welded on one side at a time, and a material to be welded can be automatically welded on one side with high efficiency. Moreover, in the single-sided welding method of this invention, the operating rate of a welding machine can be raised. Furthermore, according to the single-sided welding method of the present invention, there is an effect that the installation space for the facility is small.

  Hereinafter, embodiments of the present invention will be specifically described with reference to the accompanying drawings. 1 to 3 are views showing an embodiment of the present invention, and FIG. 4 is a perspective view showing a single-sided automatic welding apparatus. As shown in FIGS. 1 to 3, in this embodiment, five backing devices 1, 2, 3, 4, and 5 are installed in parallel to each other, and on both sides of these backing devices, Roller devices 6 and 7 are installed. In the embodiment shown in FIG. 1, two welded steel plates are temporarily attached to a panel 11 with one weld line, and four welded steel plates are temporarily attached to a panel 12 having three weld lines. Are conveyed in the longitudinal direction of the backing devices 1 to 5 and arranged on the backing devices 1 to 5. In this case, the panels 11 and 12 are conveyed so that each weld line thereof is positioned on one of the backing devices 1 to 5. In the embodiment shown in FIG. 2, three welded steel plates are temporarily attached to two panels 13, and similarly three welded steel plates are temporarily attached to two weld lines 14. Are conveyed in the longitudinal direction of the backing devices 1 to 5 and arranged on the backing devices 1 to 5. In the embodiment shown in FIG. 3, four welded steel plates are temporarily attached to four panels 15, and two welded steel plates are temporarily attached to one weld line. It is conveyed in the longitudinal direction of the backing devices 1 to 5 and arranged on the backing devices 1 to 5.

  FIG. 4 is a diagram showing this single-sided automatic welding apparatus, and shows the right end backing apparatus 5 (20) and the right roller apparatus 7 (30) shown in FIGS. The backing device 20 includes two rows of backing members in which a flux backing member 21 and a copper plate backing member 22 are provided in parallel. One of the flux backing member 21 and the copper plate backing member 22 is selectively used by a welding method. A plurality of magnet attracting members 29 are arranged in a line between the flux backing member 21 and the copper plate backing member 22, and the panel supplied on the backing device is magnetically coupled. It can be fixed so that it cannot be lifted by suction. Further, on the outside of the two rows of the flux backing member 21 and the copper plate backing member 22, rollers 23 and 24 are respectively installed with their rotation axes orthogonal to the longitudinal direction of the backing members 21 and 22. The rollers 23 and 24 are rotationally driven by motors 25 and 26, respectively, so that the panel can be moved in the longitudinal direction of the backing members 21 and 22. Further, magnet attracting members 27 and 28 are arranged between the adjacent rollers 23 and between the adjacent rollers 24, respectively, and like the magnet attracting member 29, the panel is attracted and fixed by magnetic force.

  In the roller device 30, a plurality of rollers 31 are arranged along the longitudinal direction (panel transport direction) of the backing members 21 and 22. Each roller 31 is arranged so that the rotation axis thereof is orthogonal to the longitudinal direction of the backing members 21 and 22, and is rotated by the motor 32 to move the panel in the longitudinal direction of the backing members 21 and 22. Can do.

  The other backing devices 1, 2, 3, 4 have the same structure as the backing device 20, and the roller device 6 at the left end in FIGS. 1 to 3 also has the same structure as the roller device 30. The backing devices 1 to 5 can move in a direction perpendicular to the longitudinal direction thereof, and the interval between the backing devices 1 to 5 can be adjusted.

  Next, a method of simultaneously producing two panels using the single-sided automatic welding apparatus configured as described above will be described. In the first mode shown in FIG. 1, the panel 11 having one welding line and the panel 12 having three welding lines are conveyed in the longitudinal direction of the backing member indicated by the arrows, and the backing devices 1 to 5 are used. Place on top. At this time, the positions of the welding lines of the panels 11 and 12 are made to coincide with the backing devices 1, 3, 4 and 5. That is, one welding line of the panel 11 is made to coincide with the first (No. 1) backing device 1, and three welding lines of the panel 12 are matched with the third (No. 3) backing device 3, The panels 11 and 12 are supplied onto the backing device so as to match the 4 (No. 4) backing device 4 and the fifth (No. 5) backing device 5. Then, as for the panel 11, the both-sides edge part is the roller 31 group of the roller apparatus 6 of equipment left end part, and the roller 23 (left roller 23 of FIG. 4) group of the 2nd (No. 2) backing apparatus 2. Is supported by On the other hand, the side edges of the panel 12 are a group of rollers 24 (right roller 24 in FIG. 4) of the second (No. 2) backing device 2 and a group of rollers 31 of the roller device 7 at the right end of the facility. Is supported by

  In this way, the welding lines of the panels 11 and 12 are welded by the welding machine that moves along the welding lines on the panels with both side edges supported by the rollers. In this case, four welding lines may be welded sequentially with one welding machine, or the three welding lines of the panel 12 may be welded simultaneously using three welding machines. . At the time of welding, the panel is attracted and fixed by magnetic force by the magnet attracting members 29, 27, and 28. As a result, when the flux backing member 21 or the copper plate backing member 22 is raised against the panel conveyed on the rollers 23, 24, 31 and pressed against the lower surface of the panels 11, 12, the panel 11 , 12 can be prevented from floating.

  After welding, the rollers 23, 24, and 41 are rotationally driven by the motors 25, 26, and 32, and the panels 11 and 12 are sent out in the longitudinal direction of the backing member to be carried out. Thereafter, the rollers 23, 24, and 41 are rotated and driven by the motors 25, 26, and 32, and the next panel is carried onto the backing device. In this case, it is not necessary to move the two panels 11 and 12 at the same time, and since two rows of rollers 23 and 24 are arranged for one backing device 20, the motors 25 and 26 are respectively connected. By individually driving, the panels 11 and 12 can be moved individually.

  Thus, in the first aspect of the present embodiment, the backing device 2 between the panel 11 and the panel 12 is used to support the side edges of the panels 11 and 12, respectively. Moreover, in the 2nd aspect shown in FIG. 2, the backing device 3 between the panel 13 and the panel 14 is utilized in order to support the side edge part of the panels 13 and 14, respectively. Furthermore, in the 3rd aspect shown in FIG. 3, the backing device 4 between the panel 15 and the panel 16 is utilized in order to support the side edge part of the panels 15 and 16, respectively. In this way, since the backing device that is not used for backing between the opposing edges of two panels is used to support the side edges of the panel, a plurality of panels (two in the illustrated example) are simultaneously backed. It can be supplied on the device. For this reason, if not the case of welding the maximum panel (5 welding lines in the illustrated example) that uses all the backing devices 1 to 5 of the single-sided automatic welding device for backing, Three or more panels can be simultaneously supplied onto the backing device and simultaneously welded. For this reason, welding efficiency improves remarkably.

As described above, in the present invention, a plurality of panels are moved (supplied) in the longitudinal direction of the backing member of the backing device, and each panel is irrespective of the state of other panels (welding or transport preparation). Can be welded. The number of panels supplied to the backing device at the same time is not limited to two as in the above embodiment, but may be three or more. At this time, sufficiently obtained because the effects of the present invention, the number of M (M is a natural number of two or more) simultaneously supplies the panel on the backing device, the total number of the number of weld lines of each panel N ( When N is a natural number of 2 or more, the number of backing devices needs to be (N + M−1) or more. In addition, the number of welding machines may be one, but by making the number of welding lines equal to or greater than the number of welding lines of the panel with the largest number of welding lines, at least all of the welding lines are simultaneously applied to this larger panel. It is possible to weld, and the welding efficiency is further improved. Furthermore, by setting the number of welding machines to a value equal to or greater than the sum of the numbers of welding lines of all panels, all the welding lines of all the panels can be welded simultaneously, and the welding efficiency is further improved.

  Next, the welding efficiency will be described in detail. FIG. 5 shows a case where the panels 15 and 16 (see FIG. 3) are supplied to the five backing devices 1 to 5 in a direction orthogonal to the longitudinal direction (cross flow system) unlike the present invention. Thus, even if two panels 15 and 16 are simultaneously supplied to the five backing devices 1 to 5, the welding process needs to be performed from the front panel 16. Even if welding is performed from the rear panel 15, the rear panel 15 cannot be carried out unless the front panel 16 has been welded. Further, even if a plurality of welding machines are prepared and a plurality of welding lines are to be welded at the same time, the two panels 15 and 16 are both welded and unloaded, and then the next two panels are removed. It is necessary to prepare the backing device and then perform welding, and the two panels are paired to repeat the welding process and the preparation process. . In other words, two panels are moved at the same time, such as two panels are unloaded at the same time after welding is completed, then two panels are loaded at the same time, and then a preparation process and a welding process are performed. There is a need to. In the case of a flux backing device, as described above, the preparatory process is to remove the flux (slag) solidified by conventional welding, spray new flux on the underlaying flux, and then back the panel. It is the work to carry on to this equipment and then raise the flux backing member and press the flux backing member against the lower surface of the panel. In the case of a copper plate backing device, carry in the panel and back the copper plate. This is an operation of raising the member and pressing it against the lower surface of the panel.

  On the other hand, in this embodiment, as shown in FIG. 6, the two panels 15 and 16 are moved in the longitudinal direction of the backing devices 1 to 5 (longitudinal flow method). For this reason, the backing devices 1 to 3 can perform the welding process and the preparation process of the panel 15 regardless of the state of the panel 16, and the backing device 5 is independent of the state of the panel 15, The welding process and the preparation process of the panel 16 can be implemented.

  That is, as shown in FIG. 7, in the case of the backing device, in the backing devices 1 to 3, the step of carrying in the panel 15, and the backing member is installed by pressing the backing member against the lower surface of the panel 15. The process, the step of performing welding, the step of carrying out the panel 15 and the step of carrying in the next panel 15 are repeated. In the backing device 5, the step of carrying in the panel 16, and the lower surface of the panel 16 The step of pressing the backing member to install the backing member, the step of performing welding, the step of carrying out the panel 16 and the step of carrying in the next panel 16 are repeated. In this case, during the period in which the process of installing the backing member is performed in the panel 15, in the panel 16, the process of carrying in the panel is performed, and in the period in which the welding process is performed in the panel 15, the panel 16 Then, the process which installs a backing member is implemented. The panel 16 carries out a welding process during the period in which the panel 15 carries out the panel carry-out process, and the panel 16 is carried out during the period in which the next panel 15 is carried in.

  In this case, when there is only one welding machine, the welding of the panel 16 can be performed by moving the welding machine above the panel 16 after the welding of the panel 15 is completed. The operating rate can be remarkably increased. On the other hand, in the case of the cross flow method shown in FIG. 5, after welding the welding lines of two panels in sequence, the welding machine is not used during the panel carry-out process, carry-in process and preparation process. Yes. Therefore, the operation rate is low.

  Moreover, according to this invention, the installation space of an installation can also be made small. FIG. 8 is a plan view showing an installation mode of the backing device when two panels are simultaneously flowed by the lateral flow method, and FIG. 9 is a plan view showing an installation mode of the backing device when two panels are simultaneously flowed by the vertical flow method. . When two panels are made to flow at the same time in the lateral flow mode, as shown in FIG. 8, three backing devices 41, 42, 43 corresponding to the number of welding lines of the panel 51, and three backing devices 44, 45 and 46 are provided, and the panels 51 and 52 are individually supplied to the backing devices of the two systems of panel conveyance lines. The panel 52 has one weld line obtained by tack-welding two welded steel plates, but the welding equipment includes two panel transport lines according to the maximum number of weld lines (in this case, three). Need to be installed with the same capacity, and three backing devices are installed for each system. Therefore, with respect to these two systems of panel conveyance lines, a temporary attachment place for temporarily welding the plate to be welded to obtain a panel, a single-sided welding place for performing single-sided welding, and inspection and repair after welding are performed. It is necessary to provide an inspection repair place to be performed.

  On the other hand, when two panels are made to flow simultaneously in the longitudinal flow method as in the present invention, the backing devices 61, 62, 63, 64, 65 arranged in a single row as shown in FIG. The required number of backing devices may be selected and supplied to the panels 71 and 72 according to the size of the panels, and the installation area of the facility can be significantly reduced as compared with the lateral flow method.

  Assuming that the area of the maximum panel 51 (the number of seams 3) is A, if two sheets of the maximum panel 51 are always produced, the necessary area is 6 × A in both the horizontal flow and the vertical flow and does not change. However, let us consider a case where the maximum panel and the small panel are mixed and flowed instead of producing two simultaneous maximum panels 51. Let B be the small panel area. In the case of the longitudinal flow, the way of arranging A and B is as shown in FIG. 9 or can be switched up and down, so the required place interview is 3 × (A + B). In the case of cross flow, since it is not possible to distinguish between A and B on the two lines, both lines must be prepared so that A can flow. Therefore, the necessary place is 6 × A, and the place area is required to be larger than the longitudinal flow.

  Further, in the case of the lateral flow method shown in FIG. 8, when three backing devices are installed in each panel conveyance line, the maximum number of weld lines per panel is limited to three. However, in the case of the longitudinal flow method of FIG. 9, if there are five backing devices 61 to 65, the number of weld lines can be 1 to 5. Therefore, the number of welding lines per panel can be freely selected, and welding from a large panel to a small panel can be performed. Further, for example, in the case of FIG. 9, three panels each having one weld line can be made to flow simultaneously.

  In the case of the transverse flow method, if there is one backing device and one welding machine, one-side automatic welding can be performed regardless of the number of welding lines on the panel. However, for example, when there are three welding lines for one panel, as shown in FIG. 10, the panel 80 is connected to the backing device 81 in order to weld the first welding line at a single-side welding place. Stop at the position shown in 10 (a). Next, in order to weld the second weld line, the panel 80 moves to the position shown in FIG. Next, in order to weld the third weld line, the panel 80 moves to the position shown in FIG. If it does so, in this single-sided welding place, about the moving direction of the panel 80, the length for 6 sheets of a to-be-welded steel plate is required. Therefore, in the case of a panel, since 6/4 = 1.5, 1.5 pieces are required in the moving direction of the panel 80. In FIG. 8, if there are three backing devices (41, 42, 43), the single-side welding location may be A, but if there is one backing device, the single-side welding location is 1.5 × A, and the required area Increase to a total of 2 × 3.5 × A.

  On the other hand, in the case of longitudinal flow, there is flexibility and the area can be small. However, in the case of the longitudinal flow method, as shown in FIG. 9, the required length in the panel moving direction at the single-sided welding location is substantially equal to the size of the panel.

It is a schematic diagram which shows the 1st aspect of the single-sided automatic welding method which concerns on embodiment of this invention. It is a schematic diagram which shows the 2nd aspect of the single-sided automatic welding method which concerns on embodiment of this invention. It is a schematic diagram which shows the 3rd aspect of the single-sided automatic welding method which concerns on embodiment of this invention. It is a perspective view which shows the single-sided automatic welding apparatus used in embodiment of this invention. It is a schematic diagram which shows the welding method of a transverse flow system for a comparison. It is a schematic diagram which shows the vertical flow system for demonstrating the effect of this invention compared with a horizontal flow system. It is a flowchart figure which shows the operation | movement. It is a schematic diagram which shows the installation space in the case of a lateral flow system. It is a schematic diagram which shows the installation space in the case of a longitudinal flow system. It is a schematic diagram explaining the problem of a transverse flow system.

Explanation of symbols

1, 2, 3, 4, 5, 41, 42, 43, 44, 45, 46, 61, 62, 63, 64, 65: backing device 6, 7: roller device 11, 12, 13, 14, 15 16, 51, 52, 71, 72: Panel 20: Backing device 21: Flux backing member 22: Copper plate backing member 23, 24, 31: Rollers 25, 26, 32: Motors 27, 28, 29: Magnets Suction member

Claims (5)

A plurality of backing devices each provided with a backing member extending in one direction and two rows of roller devices provided on both sides of the backing member so as to be driven independently of each other; A single-side welding device having two rows of outer roller devices provided on both sides of the backing device and a welding machine for welding a panel disposed on the backing device is used. A plurality of the welded panels are carried into the backing device such that each adjacent side edge of the adjacent panel is individually positioned on two rows of roller devices of one backing device; A method of welding these panels simultaneously or sequentially on one side, wherein the two rows of roller devices of the one backing device located between adjacent panels are used for supporting the side edges of the panels. A single panel welding method for a plurality of panels. When the number of panels supplied simultaneously on the backing device is M and the total number of welding lines of each panel is N, the number of backing devices is (N + M-1) or more. The single-sided welding method for a plurality of panels according to claim 1. A carrying-in process for carrying the panel onto the backing device, a welding preparation process for placing the backing member by pressing the backing member against the lower surface of the panel, and one-side welding the panel by the welding machine A welding step, and a feeding step of feeding the panel from the backing device. A part of the plurality of panels is classified into a first group, and the remaining panels are classified as the first group. Are classified into a second group carried on different backing devices, and the period of the one-side welding by the welding machine for the first group of panels is the welding preparation for the second group of panels, The period of carrying in the panel or sending out the panel and performing one-side welding by the welding machine for the second group of panels is the welding preparation for the first group of panels, the loading of the panel, Or sending the panel By performing one side welding method for several panel according to claim 1 or 2, characterized in that sequentially carried out the welding of the panel of the weld and the second group of the first group of panels. 4. The multi-panel single-side welding method according to claim 1, wherein the number of welding machines is equal to or greater than the number of welding lines of the panel having the largest number of welding lines. 5. The single-sided welding method for a plurality of panels according to any one of claims 1 to 3, wherein the number of the welding machines is equal to or greater than a value obtained by adding the number of welding lines of all the panels.

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