Cylinder manufacturing support device and cylinder manufacturing method

Abstract

To reduce the burden on workers during the manufacturing of cylinders. [Solution] The cylinder manufacturing support device comprises a gate-shaped frame having a first column and a second column extending vertically and spaced apart from each other in the lateral direction, and an upper beam extending laterally and connecting the upper end of the first column and the upper end of the second column; an upper pressing mechanism attached to the upper beam so as to be movable in the lateral direction along the upper beam; a first lateral pressing mechanism attached to the first column; a second lateral pressing mechanism attached to the second column; and a slider between the first column and the second column that can movably support a plurality of metal plates constituting the cylinder in the depth direction. The upper pressing mechanism, the first lateral pressing mechanism, and the second lateral pressing mechanism are all capable of pressing any of the plurality of metal plates.

Description

Technical Field

[0001] The present disclosure relates to a cylinder manufacturing support device and a method for manufacturing a cylinder.

Background Art

[0002] Patent Document 1 below describes a method for manufacturing a cylindrical cylinder around a cylinder axis using a plurality of metal plates. The cylinder is manufactured by arranging a plurality of metal plates extending in the cylinder axis direction and in the circumferential direction with respect to the cylinder axis around the cylinder axis in the circumferential direction, and joining the plurality of metal plates to each other. In this method, a cylinder manufacturing support device is used to manufacture the cylinder.

[0003] The cylinder manufacturing support device includes a portal frame and a jack. The portal frame has a first column and a second column that extend vertically and are arranged on a work floor with a space between them in the lateral direction, and an upper beam that extends in the lateral direction and connects the upper ends of the first column and the second column. The jack is attached to the upper beam via a jig so as to be movable along the upper beam.

[0004] All of the plurality of metal plates have edges that extend in the cylinder axis direction facing the circumferential direction. In the process of manufacturing the cylinder, even when the edges of two adjacent metal plates in the circumferential direction are adjacent to each other, a part of the edge of one metal plate may be displaced in the radial direction with respect to the cylinder axis from a part of the edge of the other metal plate, and a part of the edge of one metal plate may not face a part of the edge of the other metal plate in the circumferential direction.

[0005] In such cases, the manufacturing method described in Patent Document 1 uses a jack from the cylinder manufacturing support device to push, for example, a portion along the edge of one metal plate radially inward relative to the cylinder axis, so that a portion along the edge of one metal plate and a portion along the edge of the other metal plate face each other in the circumferential direction. Then, while maintaining this state, the portion along the edge of one metal plate and a portion along the edge of the other metal plate are joined together. Furthermore, after moving the two metal plates in a depth direction perpendicular to the vertical and lateral directions relative to the gantry frame, the jack from the cylinder manufacturing support device uses, for example, a portion along the other portion of the edge of one metal plate radially inward relative to the cylinder axis, so that the other portion along the edge of one metal plate and a portion along the edge of the other metal plate face each other in the circumferential direction. Then, while maintaining this state, the other portion along the edge of one metal plate and a portion along the edge of the other metal plate are joined together. The above operations are repeated until the entire edge of one metal plate extending in the direction of the cylinder axis is joined to the edge of the other metal plate. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] Japanese Patent Publication No. 2012-135802 [Overview of the Initiative] [Problems that the invention aims to solve]

[0007] In the technology described in Patent Document 1, when a jack is used to press along a portion of the edge of one of the metal plates, it is necessary to support both metal plates together to prevent them from moving or tilting due to the pressing force of the jack. Furthermore, in the process of joining the edges of the two metal plates together, it is necessary to move the two metal plates integrally in the depth direction relative to the gate-type frame. For this reason, the technology described in Patent Document 1 imposes a burden on the worker.

[0008] Therefore, the purpose of this disclosure is to provide a cylinder manufacturing support device and a cylinder manufacturing method that can reduce the burden on workers during cylinder manufacturing. [Means for solving the problem]

[0009] As one embodiment for achieving the above objective, a cylinder manufacturing support apparatus is used when manufacturing a cylinder by arranging a plurality of metal plates extending in the direction of the cylinder axis and in the circumferential direction relative to the cylinder axis around the cylinder axis in the circumferential direction, and joining adjacent metal plates in the circumferential direction among the plurality of metal plates. This cylinder manufacturing support device comprises a gate-shaped frame having first and second columns extending vertically and spaced apart from each other in the lateral direction, and an upper beam extending laterally and connecting the upper end of the first column and the upper end of the second column; a slider between the first column and the second column that can movably support the plurality of metal plates in the depth direction perpendicular to the lateral and vertical directions; an upper pressing mechanism attached to the upper beam so as to be movable laterally along the upper beam and capable of pressing any of the plurality of metal plates supported by the slider; a first lateral pressing mechanism attached to the first column and capable of pressing any of the plurality of metal plates supported by the slider; and a second lateral pressing mechanism attached to the second column and capable of pressing any of the plurality of metal plates supported by the slider.

[0010] When manufacturing a cylinder using the cylinder manufacturing support device of this embodiment, the first metal plate and the second metal plate are positioned adjacent to the first metal plate in the circumferential direction (joining plate arrangement step). Next, the temporary assembly plate group, including the first and second metal plates, is moved in the depth direction on a slider to adjust the position of the temporary assembly plate group so that the position on the edge of the second metal plate that is to be joined to the edge of the first metal plate in the direction of the cylinder axis is located below the upper beam (position adjustment step). In this embodiment, when sliding the temporary assembly plate group in the depth direction during this position adjustment step, the burden on the worker during the position adjustment step can be reduced by sliding the temporary assembly plate group on a slider.

[0011] Next, the first and second lateral pressing mechanisms are operated to clamp the temporary assembly plate group located at the work position between the first and second lateral pressing mechanisms, thereby restricting the movement of the temporary assembly plate group (movement restriction process). This movement restriction process constrains the temporary assembly plate group so that it cannot move in the lateral and depth directions, and also restricts the inclination of the cylindrical axis and the inclination around the cylindrical axis.

[0012] Next, while the movement restriction process is being executed, the upper pressing mechanism presses one of the portions of the edge of the first metal plate extending in the direction of the cylindrical axis and the portion of the edge of the second metal plate extending in the direction of the cylindrical axis, so that the portion of the edge of the first metal plate and the portion of the edge of the second metal plate face each other in the circumferential direction (edge ​​facing process). Since this edge facing process is performed while the movement restriction process is being executed, the edge facing process can be performed while the movement and tilting of the temporary assembly of plates are restricted. Then, the portion of the edge of the first metal plate and the portion of the edge of the second metal plate, which are being performed while the movement restriction process and the edge facing process are being executed, are joined together (joining process). Since this joining process is performed while the movement restriction process is being executed, the joining process can be performed while the movement and tilting of the temporary assembly of plates are restricted. Therefore, in this embodiment, the burden on workers in the edge facing process and the joining process can be reduced.

[0013] In a method for manufacturing a cylinder as one embodiment for achieving the above objective, a cylinder manufacturing support device as one embodiment is used. This manufacturing method comprises a preparation step of preparing the plurality of metal plates, a first auxiliary metal plate corresponding to the internal size and shape of the first axis side of the cylinder and a second auxiliary metal plate corresponding to the internal size and shape of the second axis side of the cylinder, and among the plurality of metal plates, the first metal plate and the third metal plate that face each other across the cylinder axis, so that the relative positional relationship of the first metal plate and the third metal plate matches the relative positional relationship of the first metal plate and the third metal plate after the cylinder is completed. A temporary joining step of temporarily joining a part of the edge of the auxiliary metal plate and a part of the edge of the second auxiliary metal plate; a placement step of placing the first metal plate and the third metal plate, which have been temporarily joined to the first and second auxiliary metal plates, on the slider such that the cylindrical axis extends in the depth direction; and among the plurality of metal plates, the edge of the second metal plate, excluding the first and third metal plates, that faces the circumferential direction and extends in the direction of the cylindrical axis, with one of the metal plates, the first metal plate and the third metal plate, which have been temporarily joined to the first and second auxiliary metal plates, facing the circumferential direction. Furthermore, the joining plate arrangement step is to position the joining plate adjacent to the edge extending in the direction of the cylindrical axis, and the temporary assembly plate group, which is a collection of the first auxiliary metal plate, the second auxiliary metal plate, the first metal plate, the second metal plate, and the third metal plate, is moved on the slider in the depth direction to adjust the position of the temporary assembly plate group, so that the position where the joining of the first metal plate to the edge of the second metal plate is to be performed in the direction of the cylindrical axis is located below the upper beam, and the first lateral pressing mechanism and the second lateral pressing mechanism are operated to perform the first lateral pressing mechanism and the second lateral pressing mechanism A movement restriction step in which the group of temporary assembly plates located at the work position is sandwiched between the pressing mechanism and the movement restriction step in which the movement restriction step is performed, and the upper pressing mechanism presses on one of the portions of the first metal plate along the portion of the edge extending in the direction of the cylindrical axis and the second metal plate along the portion of the edge extending in the direction of the cylindrical axis, so that the portion of the edge of the first metal plate and the portion of the edge of the second metal plate face each other in the circumferential direction, and during the execution of the movement restriction step and during the execution of the edge opposition step,The process includes a joining step of joining a portion of the edge of the first metal plate to a portion of the edge of the second metal plate, and an auxiliary plate removal step of removing the first auxiliary metal plate and the second auxiliary metal plate from the first metal plate and the third metal plate after the plurality of metal plates have been connected to each other. The position adjustment step, the movement restriction step, the edge facing processing step, and the joining step are repeated until the entire edge of the second metal plate extending in the direction of the cylindrical axis is joined to the edge of the first metal plate.

[0014] In the method for manufacturing a cylinder in this embodiment, since the cylinder manufacturing support device described in the above embodiment is used, the burden on the worker during cylinder manufacturing can be reduced. [Effects of the Invention]

[0015] In one aspect of this disclosure, the burden on workers can be reduced when manufacturing cylinders. [Brief explanation of the drawing]

[0016] [Figure 1] This is a perspective view of a cylinder in one embodiment relating to this disclosure. [Figure 2] This is a plan view of a cylinder manufacturing support device according to one embodiment of the present disclosure. [Figure 3] This is a side view of a cylinder manufacturing support device in one embodiment relating to the present disclosure. [Figure 4] This is a front view of a cylinder manufacturing support device according to one embodiment of the present disclosure. [Figure 5] This is a front view of the main part of a cylindrical manufacturing support device in one embodiment of the present disclosure. [Figure 6] This is an explanatory diagram showing the configuration of the first support frame movement mechanism in one embodiment of the present disclosure. [Figure 7] This is an explanatory diagram showing the configuration of the first base rocking mechanism in one embodiment relating to this disclosure. [Figure 8] This is a cross-sectional view taken along line VIII-VIII in Figure 5. [Figure 9] This flowchart shows the manufacturing procedure for a cylinder in one embodiment of the present disclosure. [Figure 10] A perspective view of a temporary formwork group in an embodiment according to the present disclosure. [Figure 11] A plan view of a cylinder manufacturing support device and a temporary formwork group after completion of the position adjustment process in an embodiment according to the present disclosure. [Figure 12] A front view of a cylinder manufacturing support device and a temporary formwork group after completion of the movement restriction process in an embodiment according to the present disclosure. [Figure 13] An explanatory diagram showing the state of a plurality of metal plates immediately before the edge facing process in an embodiment according to the present disclosure. [Figure 14] An explanatory diagram showing the state of a plurality of metal plates after the edge facing process in an embodiment according to the present disclosure

Embodiments for Carrying Out the Invention

[0017] Hereinafter, an embodiment of a cylinder manufacturing support device according to the present invention and a method for manufacturing a cylinder using the same will be described with reference to the drawings.

[0018] 「Embodiments of the Cylinder」 First, embodiments of the cylinder to be manufactured will be described.

[0019] The cylinder in the present embodiment is a cylinder that forms part of a combustor of a gas turbine. The combustor has a burner that injects fuel and air, and a combustion cylinder (or tail cylinder) that defines a combustion space in which the fuel injected from the burner burns. The cylinder in the present embodiment is this combustion cylinder.

[0020] As shown in FIG. 1, the cylinder 1 in the present embodiment is cylindrical around the cylinder axis At. Here, the direction in which the cylinder axis At extends is the cylinder axis direction Da. Of both sides in this cylinder axis direction Da, one side is the axis first side Da1, and the other side is the axis second side Da2. Further, the circumferential direction with respect to the cylinder axis At is the circumferential direction Dc. Of both sides in this circumferential direction Dc, one side is the circumferential direction first side Dc1, and the other side is the circumferential direction second side Dc2.

[0021] In this embodiment, the cylindrical axis At of the cylinder 1 is not a straight line, but is curved, as shown in Figure 3. As shown in Figure 1, a first opening is formed at the end of the first axis Da1 of the cylinder 1, opening from the inside toward the first axis Da1. A first opening is formed at the end of the second axis Da2 of the cylinder 1, opening from the inside toward the second axis Da2. The cross-section of the cylinder 1 on a virtual plane perpendicular to the cylindrical axis At has different cross-sectional shapes and sizes depending on the position in the direction of the cylindrical axis Da. For example, the cross-sectional shape at the end of the first axis Da1 of the cylinder 1 is circular. The cross-sectional shape at the end of the second axis Da2 of the cylinder 1 is isosceles trapezoidal, and its cross-sectional size is smaller than that at the end of the first axis Da1 of the cylinder 1.

[0022] In this embodiment, the cylinder 1 is manufactured by joining multiple metal plates 3 together. In this embodiment, there are four metal plates 3. All of the multiple metal plates 3 are plates that extend in the direction of the cylinder axis Da and the circumferential direction Dc. However, none of the multiple metal plates 3 are flat, but are curved. Each of the multiple metal plates 3 has an inner circumferential surface 4 that forms part of the inner circumferential surface of the cylinder 1, an outer circumferential surface 5 that forms part of the outer circumferential surface of the cylinder 1, and an edge 6. The edge 6 has a first edge 6a that faces the first circumferential side Dc1 and extends in the direction of the cylinder axis Da, and a second edge 6b that faces the second circumferential side Dc2 and extends in the direction of the cylinder axis Da. The multiple metal plates 3 are arranged in the circumferential direction Dc around the cylinder axis At, and the edges 6 of adjacent metal plates 3 in the circumferential direction Dc are joined together.

[0023] In this embodiment, the cylinder 1 is a combustion cylinder (or tail cylinder), as described above. However, the cylinder 1 can be any cylinder as long as it is formed by arranging multiple metal plates 3 that extend in the direction of the cylinder axis At, Da, and in the circumferential direction Dc relative to the cylinder axis At, in the circumferential direction Dc around the cylinder axis At, and joining the multiple metal plates 3 together.

[0024] "Embodiment of a Cylinder Manufacturing Support Device" An embodiment of the cylinder manufacturing support device will be described with reference to Figures 2 to 8.

[0025] As shown in Figures 2 to 4, the cylinder manufacturing support device M in this embodiment comprises a gate-type frame 10, an upper pressing mechanism 20, a first lateral pressing mechanism 20a, a second lateral pressing mechanism 20b, an upper base support frame 30, a first base support frame 40a, a second base support frame 40b, a first base swinging mechanism 45a, a second base swinging mechanism 45b, a first support frame moving mechanism 50a, a second support frame moving mechanism 50b, a slider 60, and a plurality of legs 65.

[0026] The portal frame 10 includes a first column 11a and a second column 11b that extend in the vertical direction Dv and are spaced apart from each other in the horizontal direction Ds, and an upper beam 12 that extends in the horizontal direction Ds and connects the upper end of the first column 11a and the upper end of the second column 11b. Guide holes 13 are formed in the upper beam 12 that penetrate in the vertical direction Dv and extend in the horizontal direction Ds. The upper beam 12 is curved in the portion including the area in which the guide holes 13 are formed, such that it gradually curves upward vertically as it approaches the center of the upper beam 12 in the horizontal direction Ds from the first column 11a, and gradually curves upward vertically as it approaches the center from the second column 11b.

[0027] The upper pressing mechanism 20, the first lateral pressing mechanism 20a, and the second lateral pressing mechanism 20b all have a base 21 and a tip 22 that is relatively movable relative to the base 21 in the tip movement direction, as shown in Figure 5. Specifically, the upper pressing mechanism 20, the first lateral pressing mechanism 20a, and the second lateral pressing mechanism 20b are all hydraulic cylinders that move the tip 22 hydraulically. This hydraulic cylinder has a piston rod and a cylinder casing. The piston rod extends in the tip movement direction and has a tip 22 which is the end in the tip movement direction. The cylinder casing constitutes the base 21 of each pressing mechanism 20, 20a, and 20b and covers the piston rod with the tip 22 exposed so that the piston rod can move in the tip movement direction. The tip 22 of the first lateral pressing mechanism 20a and the tip 22 of the second lateral pressing mechanism 20b are fitted with contact ends 23 that can contact any of the metal plates 3 that make up the cylinder 1.

[0028] The base 21 of the upper pressing mechanism 20 is attached to the upper beam 12 via the upper base support frame 30 such that the direction of tip movement has a component in the vertical direction Dv, and the tip 22 of the upper pressing mechanism 20 faces downward.

[0029] As shown in Figures 5 and 8, the upper base support frame 30 is a channel-shaped member having a pair of side plates 31 that are spaced apart from each other and facing each other, and a bottom plate 33 that connects the ends of the pair of side plates 31. Each of the pair of side plates 31 has a base insertion hole 32 that penetrates in the direction in which the pair of side plates 31 are aligned. The upper base support frame 30 is positioned so as to be movable in the lateral direction Ds relative to the upper beam 12, with the upper beam 12 positioned between the pair of side plates 31. The base 21 of the upper pressing mechanism 20 is fixed to the upper base support frame 30 by being inserted through the base insertion holes 32 formed in each of the pair of side plates 31 and the guide holes 13 in the upper beam 12. Therefore, the upper base support frame 30 and the base 21 of the upper pressing mechanism 20 supported by this upper base support frame 30 are movable in the lateral direction Ds relative to the upper beam 12 within the range in which the guide holes 13 are formed in the upper beam 12. The upper base support frame 30 is provided with lateral movement restricting bolts 34 to restrict the lateral movement Ds relative to the upper beam 12.

[0030] The base 21 of the first lateral pressing mechanism 20a is attached to the first column 11a via the first base support frame 40a such that the tip movement direction has a component in the lateral direction Ds, and the tip 22 of the first lateral pressing mechanism 20a faces the side of the second column 11b. The base 21 of the first lateral pressing mechanism 20a is attached to the first base support frame 40a so as to be swingable by the first base swing mechanism 45a. The first base support frame 40a is attached to the first column 11a so as to be movable in the vertical direction Dv by the first support frame movement mechanism 50a.

[0031] The base 21 of the second lateral pressing mechanism 20b is attached to the second column 11b via the second base support frame 40b such that the tip movement direction has a component in the lateral direction Ds, and the tip 22 of the second lateral pressing mechanism 20b faces the side of the first column 11a. The base 21 of the second lateral pressing mechanism 20b is attached to the second base support frame 40b so as to be swingable by the second base swing mechanism 45b. The second base support frame 40b is attached to the second column 11b so as to be movable in the vertical direction Dv by the second support frame movement mechanism 50b.

[0032] The second base support frame 40b has the same configuration as the first base support frame 40a, except that the direction of the lateral Ds is reversed compared to the first base support frame 40a. The second base rocking mechanism 45b has the same configuration as the first base rocking mechanism 45a, except that the direction of the lateral Ds is reversed compared to the first base rocking mechanism 45a. The second support frame moving mechanism 50b has the same configuration as the first support frame moving mechanism 50a, except that the direction of the lateral Ds is reversed compared to the first support frame moving mechanism 50a. Therefore, in the following, only the configurations of the first base support frame 40a, the first base rocking mechanism 45a, and the first support frame moving mechanism 50a will be described, and the descriptions of the configurations of the second base support frame 40b, the second base rocking mechanism 45b, and the second support frame moving mechanism 50b will be omitted.

[0033] As shown in Figure 5, the first base support frame 40a has a pair of support plates 41 (see Figures 3 and 5) arranged to sandwich the first column 11a in a depth direction Dl perpendicular to the vertical direction Dv and the horizontal direction Ds, and a base holding ring 42. The base holding ring 42 holds the tip 22 side portion of the base 21 of the first lateral pressing mechanism 20a. The base holding ring 42 has a pivot axis 43 extending in the depth direction Dl. The base holding ring 42, together with the base 21 of the first lateral pressing mechanism 20a held by the base holding ring 42, is rotatably attached to the pair of support plates 41 around the pivot axis 43.

[0034] As shown in Figures 5 and 7, the first base oscillating mechanism 45a includes an oscillating operating end 46, an oscillating screw 47, and an oscillating link mechanism 48. The oscillating operating end 46 is provided on a pair of support plates 41 so as to be rotatable around an oscillating screw axis 49 extending in the vertical direction Dv. A female screw hole is formed in the oscillating operating end 46, penetrating in the vertical direction Dv with the oscillating screw axis 49 as the center. The oscillating screw 47 is screwed into this female screw hole of the oscillating operating end 46. Therefore, when the oscillating operating end 46 is rotated around the oscillating screw axis 49, the oscillating screw 47 moves in the vertical direction Dv relative to the oscillating operating end 46. A part of the oscillating link mechanism 48 is connected to the tip of this oscillating screw 47. Another part of the oscillating link mechanism 48 is connected to the base end side of the base 21 of the first lateral pressing mechanism 20a. Therefore, by operating the swinging end 46, the base 21 of the first lateral pressing mechanism 20a swings about the swing axis 43.

[0035] As shown in Figures 5 and 6, the first support frame moving mechanism 50a includes a movable operating end 51, a female screw member 52, and a connecting member 53. The movable operating end 51 is provided on the upper beam 12 so as to be rotatable about a movable screw axis 54 extending in the vertical direction Dv. The vertically upper end of this movable operating end 51 is located vertically above the upper beam 12 and forms an operating part. The vertically lower end of this movable operating end 51 is located vertically below the upper beam 12 and has a male screw formed thereon. The female screw member 52 has a female screw hole that penetrates vertically in the direction Dv with respect to the movable screw axis 54. The male screw of the movable operating end 51 is screwed into this female screw hole. Therefore, when the movable operating end 51 is rotated about the movable screw axis 54, the female screw member 52 moves vertically in the direction Dv relative to the movable operating end 51. The connecting member 53 connects the female screw member 52 and the pair of support plates 41. Therefore, by operating the movable operation end 51, the first base support frame 40a having the pair of support plates 41, the base 21 of the first lateral pressing mechanism 20a supported by the first base support frame 40a, and the first base swing mechanism 45a provided on the first base support frame 40a move together in the vertical direction Dv along the first column 11a.

[0036] As shown in Figures 2 and 4, the slider 60 can support parts so that they can move in the depth direction Dl between the first column 11a and the second column 11b. Here, "movable in the depth direction Dl" means that the parts can be moved with far less effort than moving them in the vertical direction Dv and the lateral direction Ds. This slider 60 is a roller conveyor having a pair of roller guides 61 and a plurality of rollers 62. The pair of roller guides 61 extend in the depth direction Dl and are positioned between the first column 11a and the second column 11b, spaced apart from each other in the lateral direction Ds. The plurality of rollers 62 are positioned between the pair of roller guides 61, aligned in the depth direction Dl, and are supported by the pair of roller guides 61 so as to be rotatable around the axis of the rollers 62 extending in the lateral direction Ds.

[0037] Multiple legs 65 support the gantry frame 10 and the slider 60.

[0038] "Embodiment for Manufacturing a Tube" An embodiment of the method for manufacturing the cylinder 1 using the cylinder manufacturing support device M described above will be explained according to the flowchart shown in Figure 9.

[0039] First, as shown in Figure 10, four metal plates 3 that make up the cylinder 1, a first auxiliary metal plate 71a, and a second auxiliary metal plate 71b are prepared (preparation step S1). The first auxiliary metal plate 71a is a circular metal plate corresponding to the internal size and shape of the first axis Da1 in the cylinder 1. The second auxiliary metal plate 71b is a trapezoidal metal plate corresponding to the internal size and shape of the second axis Da2 in the cylinder 1.

[0040] Next, among the multiple metal plates 3, the first metal plate 3a and the third metal plate 3c, which face each other across the cylindrical axis At, are temporarily joined to a portion of the edge of the first auxiliary metal plate 71a and a portion of the edge of the second auxiliary metal plate 71b (temporary joining step S2). By performing this temporary joining step S2, the relative positional relationship between the first metal plate 3a and the third metal plate 3c becomes substantially the same as the relative positional relationship between the first metal plate 3a and the third metal plate 3c in the completed cylinder 1.

[0041] Next, as shown in Figure 2, the first metal plate 3a and the third metal plate 3c, which are temporarily joined to the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, are placed on the slider 60 together with the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, such that the cylindrical axis line At extends in the depth direction Dl and the first metal plate 3a is located closer to the first column 11a than the third metal plate 3c (placement step S3). In Figure 2, a work plate 69 is placed on the slider 60, and the first metal plate 3a and the second metal plate 3b, which are temporarily joined to the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, are placed on this work plate 69 together with the first auxiliary metal plate 71a and the second auxiliary metal plate 71b.

[0042] Next, as shown in Figure 10, the first edge 6a of the second metal plate 3b, which faces the first circumferential side Dc1 and extends in the cylindrical axis direction Da, is made adjacent to the second edge 6b of the first metal plate 3a, which is temporarily joined to the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, which faces the second circumferential side Dc2 and extends in the cylindrical axis direction Da (joining plate arrangement step S4). In this joining plate arrangement step S4, the second edge 6b of the second metal plate 3b may also be made adjacent to the first edge 6a of the third metal plate 3c, which is temporarily joined to the first auxiliary metal plate 71a and the second auxiliary metal plate 71b. Here, the group consisting of the first auxiliary metal plate 71a, the second auxiliary metal plate 71b, the first metal plate 3a, the third metal plate 3c, and the second metal plate 3b, which is the joining plate to the first metal plate 3a, is called the temporary assembly plate group 9.

[0043] Next, as shown in Figure 11, the temporary assembly plate group 9 is slid on the slider 60 in the depth direction Dl so that the position where the first edge 6a of the second metal plate 3b is to be joined to the second edge 6b of the first metal plate 3b in the cylindrical axis direction Da is located below the upper beam 12 (position adjustment step S5). Note that the aforementioned joining plate arrangement step S4 may be performed at any timing before this position adjustment step S5 and after the temporary joining step S2.

[0044] Next, the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b are operated to perform the movement restriction process S6 as shown in Figure 12. In this movement restriction process S6, first, the movement operation end 51 of the first support frame moving mechanism 50a is operated to adjust the vertical position Dv of the base 21 of the first lateral pressing mechanism 20a so that the contact end 23 provided at the tip 22 of the first lateral pressing mechanism 20a faces the first metal plate 3a in the lateral direction Ds. Furthermore, the swing operation end 46 of the first base swing mechanism 45a is operated to adjust the inclination of the base 21 of the first lateral pressing mechanism 20a. In addition, the movement operation end 51 of the second support frame moving mechanism 50b is operated to adjust the vertical position Dv of the base 21 of the second lateral pressing mechanism 20b so that the contact end 23 provided at the tip 22 of the second lateral pressing mechanism 20b faces the third metal plate 3c in the lateral direction Ds. Furthermore, the tilt of the base 21 of the second lateral pressing mechanism 20b is adjusted by operating the swinging end 46 of the second base swinging mechanism 45b. Next, the tip 22 of the first lateral pressing mechanism 20a is moved relative to the base 21 of the first lateral pressing mechanism 20a, and the tip 22 of the second lateral pressing mechanism 20b is moved relative to the base 21 of the second lateral pressing mechanism 20b, thereby sandwiching the temporary assembly plate group 9 between the tip 22 of the first lateral pressing mechanism 20a and the tip 22 of the second lateral pressing mechanism 20b. At this time, the contact end 23 provided on the tip 22 of the first pressing mechanism contacts the outer circumferential surface 5 of the first metal plate 3a in the temporary assembly plate group 9, and the contact end 23 provided on the tip 22 of the second pressing mechanism contacts the outer circumferential surface 5 of the second metal plate 3b in the temporary assembly plate group 9.

[0045] By executing this movement restriction process S6, the temporary assembly plate group 9 is constrained to be unable to move in the lateral direction Ds and the depth direction Dl, and the inclination of the cylindrical axis At and the inclination around the cylindrical axis At are restricted.

[0046] Next, as shown in Figures 12-14, during the execution of the movement restriction process S6, a portion of the outer circumferential surface 5 of the second metal plate 3b, along the position where it is to be joined to the second edge 6b of the first metal plate 3a in the cylindrical axis direction Da, is pressed by the upper pressing mechanism 20 in a direction having a vertical downward component. At this time, in order to prevent the outer circumferential surface 5 of the second metal plate 3b from being damaged, it is preferable to place a shim 72 made of copper or the like, which is softer than the metal plate 3, between the tip 22 of the upper pressing mechanism 20 and the outer circumferential surface 5 of the second metal plate 3b. Then, a portion of the first edge 6a of the second metal plate 3b and a portion of the second edge 6b of the first metal plate 3a are brought to face each other in the circumferential direction Dc, so that the outer circumferential surface 5 of the second metal plate 3b and the outer circumferential surface 5 of the first metal plate 3a become substantially flush (edge ​​facing process S7). Since this edge-facing processing step S7 is performed while the movement restriction step S6 is being executed, the edge-facing processing step S7 can be performed while the movement and tilting of the temporary assembly plate group 9 are restricted.

[0047] In the above, as shown in Figure 13, a portion of the first edge 6a of the second metal plate 3b is located radially outward Dro with respect to the cylindrical axis At relative to a portion of the second edge 6b of the first metal plate 3a. Therefore, a portion of the outer circumferential surface 5 of the second metal plate 3b along a portion of the first edge 6a of the second metal plate 3b is pressed by the upper pressing mechanism 20 in a direction having a vertically downward component. However, if a portion of the second edge 6b of the first metal plate 3a is located radially outward Dro with respect to the cylindrical axis At relative to a portion of the first edge 6a of the second metal plate 3b, then in the edge-facing processing step S7, a portion of the outer circumferential surface 5 of the first metal plate 3a along a portion of the second edge 6b of the first metal plate 3a is pressed by the upper pressing mechanism 20 in a direction having a vertically downward component.

[0048] Next, while the movement restriction process S6 is being executed and the edge-facing processing process S7 is being executed, a portion of the first edge 6a of the second metal plate 3b and a portion of the second edge 6b of the first metal plate 3a are joined (joining process S8). Since this joining process S8 is executed while the movement restriction process S6 is being executed, the joining process S8 can be executed while the movement and tilting of the temporary assembly plate group 9 are restricted.

[0049] Next, the worker determines whether the entire edge 6 of the second metal plate 3b has been joined to the edges 6 of the first metal plate 3a and the third metal plate 3c (first determination step S9). If the entire edge 6 of the second metal plate 3b has not been joined to the edges 6 of the first metal plate 3a and the third metal plate 3c, the steps S5 to S9 described above are repeated until the entire edge 6 of the second metal plate 3b has been joined to the edges 6 of the first metal plate 3a and the third metal plate 3c.

[0050] In the first judgment step S9, if the operator determines that the entire edge 6 of the second metal plate 3b has been joined to the edges 6 of the first metal plate 3a and the third metal plate 3c, the operator determines whether all the metal plates 3 have been joined to each other (second judgment step S10). If the operator determines that all the metal plates 3 have not been joined to each other, the operator repeats the steps S4 to S10 described above until all the metal plates 3 have been joined to each other.

[0051] For example, if the second judgment step S10 determines that the fourth metal plate 3d is not joined to the other metal plates 3, the joining plate placement step S4 is performed on the fourth metal plate 3d, and then steps S5 to S9 described above are repeated on the fourth metal plate 3d. Then, if the operator determines in the first judgment step S9 that the entire edge 6 of the fourth metal plate 3d is joined to the edges 6 of the first metal plate 3a and the third metal plate 3c, the operator performs the second judgment step S10.

[0052] If the worker determines in the second judgment step S10 that all the metal plates 3 have been joined together, the first auxiliary metal plate 71a and the second auxiliary metal plate 71b are removed from the temporary assembly plate group 9 (auxiliary plate removal step S11).

[0053] This completes cylinder 1.

[0054] In this embodiment, when moving the temporary assembly plate group 9 in the depth direction Dl during the position adjustment step S5, the burden on the worker during the position adjustment step S5 can be reduced by sliding the temporary assembly plate group 9 on the slider 60. Furthermore, in this embodiment, since the edge facing processing step S7 and the joining step S8 can be performed while the movement and tilting of the temporary assembly plate group 9 are restricted, the burden on the worker during these steps can be reduced.

[0055] "Variations" In the embodiments described above, the upper pressing mechanism 20, the first lateral pressing mechanism 20a, and the second lateral pressing mechanism 20b are all hydraulic cylinders. However, these pressing mechanisms 20, 20a, and 20b may also be, for example, electromagnetic cylinders or jacks with linkage mechanisms.

[0056] In the above embodiment, the slider 60 is a roller conveyor having a plurality of rollers 62 arranged in the depth direction Dl. However, the slider can be anything that can move the articles in the depth direction Dl with far less effort than moving the articles in the vertical direction Dv and the lateral direction Ds, for example, a belt conveyor having a belt extending in the depth direction Dl.

[0057] In the above embodiment, the number of metal plates 3 constituting the cylinder 1 is four. However, the number of metal plates 3 can be any number, as long as it is three or more.

[0058] Furthermore, this disclosure is not limited to the embodiments described above. Various additions, modifications, substitutions, and partial deletions are possible, provided that they do not depart from the conceptual idea and spirit of the present invention derived from the claims and their equivalents.

[0059] "Addendum" The cylinder manufacturing support device M in the above embodiments and modifications can be understood, for example, as follows. (1) The cylinder manufacturing support device M in the first embodiment is This device is used when manufacturing a cylinder 1 by arranging multiple metal plates 3 that extend in the direction of the cylinder axis At, Da, and in the circumferential direction Dc relative to the cylinder axis At, around the cylinder axis At in the circumferential direction Dc, and joining adjacent metal plates 3 in the circumferential direction Dc. This cylinder manufacturing support device M has a gate-shaped frame 10 having a first column 11a and a second column 11b that extend in the vertical direction Dv and are spaced apart from each other in the lateral direction Ds, and an upper beam 12 that extends in the lateral direction Ds and connects the upper end of the first column 11a and the upper end of the second column 11b, a slider 60 that can move and support the multiple metal plates 3 in the depth direction Dl perpendicular to the lateral direction Ds and the vertical direction Dv between the first column 11a and the second column 11b, and moves along the upper beam 12 in the lateral direction Ds The device comprises: an upper pressing mechanism 20 that is movably attached to the upper beam 12 and capable of pressing any of the multiple metal plates 3 supported by the slider 60; a first lateral pressing mechanism 20a that is attached to the first column 11a and capable of pressing any of the multiple metal plates 3 supported by the slider 60; and a second lateral pressing mechanism 20b that is attached to the second column 11b and capable of pressing any of the multiple metal plates 3 supported by the slider 60.

[0060] When manufacturing a cylinder 1 using the cylinder manufacturing support device M of this embodiment, the first metal plate 3a and the second metal plate 3b are placed adjacent to the first metal plate 3a in the circumferential direction Dc (joining plate arrangement step S4). Next, the temporary assembly plate group 9, including the first metal plate 3a and the second metal plate 3b, is slid on the slider 60 in the depth direction Dl so that the position on the edge 6 of the second metal plate 3b where it is planned to be joined to the edge 6 of the first metal plate 3a in the cylinder axis direction Da is located below the upper beam 12 (position adjustment step S5). In this embodiment, when moving the temporary assembly plate group 9 in the depth direction Dl in this position adjustment step S5, the burden on the worker in the position adjustment step S5 can be reduced by sliding the temporary assembly plate group 9 on the slider 60.

[0061] Next, the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b are operated to clamp the temporary assembly plate group 9 located at the work position between the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b, thereby restricting the movement of the temporary assembly plate group 9 (movement restriction step S6). By executing this movement restriction step S6, the temporary assembly plate group 9 is constrained to be unable to move in the lateral direction Ds and the depth direction Dl, and the inclination of the cylindrical axis line At and the inclination around the cylindrical axis line At are restricted.

[0062] Next, while the movement restriction process S6 is being executed, the upper pressing mechanism 20 presses one of the portions of the edge 6 of the first metal plate 3a that extends in the cylindrical axis direction Da and the portion of the edge 6 of the second metal plate 3b that extends in the cylindrical axis direction Da, so that the portion of the edge 6 of the first metal plate 3a and the portion of the edge 6 of the second metal plate 3b face each other in the circumferential direction Dc (edge ​​facing process S7). Since this edge facing process S7 is executed while the movement restriction process S6 is being executed, the edge facing process S7 can be executed while the movement and tilting of the temporary assembly plate group 9 are restricted. Then, the portion of the edge 6 of the first metal plate 3a and the portion of the edge 6 of the second metal plate 3b are joined together while the movement restriction process S6 and the edge facing process S7 are being executed (joining process S8). Since this joining process S8 is executed while the movement restriction process S6 is being executed, the joining process S8 can be executed while the movement and tilting of the temporary assembly plate group 9 are restricted. Therefore, in this embodiment, the burden on workers in the edge-facing processing step S7 and the joining step S8 can be reduced.

[0063] (2) The cylinder manufacturing support device M in the second embodiment is In the cylinder manufacturing support apparatus M according to the first embodiment, the upper pressing mechanism 20, the first lateral pressing mechanism 20a, and the second lateral pressing mechanism 20b each have a base 21 and a tip 22 that is relatively movable relative to the base 21 in the tip movement direction. The base 21 of the upper pressing mechanism 20 is attached to the upper beam 12 such that the tip movement direction has a component of the vertical direction Dv and the tip 22 of the upper pressing mechanism 20 faces downward. The base 21 of the first lateral pressing mechanism 20a is attached to the first column 11a such that the tip movement direction has a component of the lateral direction Ds and the tip 22 of the first lateral pressing mechanism 20a faces the side of the second column 11b. The base 21 of the second lateral pressing mechanism 20b is attached to the second column 11b such that the tip movement direction has a component of the lateral direction Ds, and the tip 22 of the second lateral pressing mechanism 20b faces the side of the first column 11a.

[0064] (3) The cylinder manufacturing support device M in the third embodiment is The cylinder manufacturing support device M in the second embodiment includes: a first base support frame 40a that supports the base 21 of the first lateral pressing mechanism 20a and is attached to the first column 11a so as to be movable in the vertical direction Dv; a first support frame moving mechanism 50a that can move the first base support frame 40a in the vertical direction Dv; a second base support frame 40b that supports the base 21 of the second lateral pressing mechanism 20b and is attached to the second column 11b so as to be movable in the vertical direction Dv; and a second support frame moving mechanism 50b that can move the second base support frame 40b in the vertical direction Dv.

[0065] In the case of the cylinder 1, the cylinder axis At may be curved, or the external size and shape of the cylinder 1 may differ depending on the position Da in the direction of the cylinder axis. In this embodiment, even in such cases, by moving the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b in the vertical direction Dv, the temporary assembly plate group 9 can be sandwiched between the tip 22 of the first lateral pressing mechanism 20a and the tip 22 of the second lateral pressing mechanism 20b in the movement restriction step S6.

[0066] (4) The cylinder manufacturing support device M in the fourth embodiment is In the cylinder manufacturing support apparatus M according to the third embodiment, the first base support frame 40a pivotably supports the base 21 of the first lateral pressing mechanism 20a around a pivot axis 43 extending in the depth direction Dl. The second base support frame 40b pivotably supports the base 21 of the second lateral pressing mechanism 20b around a pivot axis 43 extending in the depth direction Dl. The apparatus includes a first base swing mechanism 45a attached to the first base support frame 40a, which is capable of swinging the base 21 of the first lateral pressing mechanism 20a around the pivot axis 43 of the first base support frame 40a, and a second base swing mechanism 45b attached to the second base support frame 40b, which is capable of swinging the base 21 of the second lateral pressing mechanism 20b around the pivot axis 43 of the second base support frame 40b.

[0067] In the case of the cylinder 1, the cylinder axis At may be curved, or the external size and shape of the cylinder 1 may differ depending on the position Da in the direction of the cylinder axis. In this embodiment, even in such cases, the movement and tilt of the temporary assembly plate group 9 in the movement restriction process S6 can be stably restricted by swinging the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b.

[0068] (5) The cylinder manufacturing support device M in the fifth embodiment is In the cylinder manufacturing support apparatus M according to any one of the first to fourth embodiments, the slider 60 includes a pair of roller guides 61 that extend in the depth direction Dl and are spaced apart from each other in the lateral direction Ds, and are arranged between the first column 11a and the second column 11b, and a plurality of rollers 62 that are arranged between the pair of roller guides 61 in the depth direction Dl and are supported by the pair of roller guides 61 so as to be rotatable about the axis of a roller 62 that extends in the lateral direction Ds.

[0069] (6) The cylinder manufacturing support device M in the sixth embodiment is In the cylinder manufacturing support apparatus M according to any one of the first to fifth embodiments, the upper beam 12 is curved in a portion that includes the range in which the upper pressing mechanism 20 can move in the lateral direction Ds, such that it gradually moves vertically upward as it approaches the center of the upper beam 12 in the lateral direction Ds from the first column 11a, and gradually moves vertically upward as it approaches the center from the second column 11b.

[0070] The multiple metal plates 3 that make up the cylinder 1 are basically all curved. In this embodiment, the portion of the upper beam 12 that includes the range in which the upper pressing mechanism 20 can move in the lateral direction Ds is curved, so the direction of movement of the tip 22 of the upper pressing mechanism 20 relative to the base 21 of the upper pressing mechanism 20 can be set to an appropriate direction with respect to the curved metal plates 3.

[0071] The manufacturing method of the cylinder 1 in the above embodiments and modifications can be understood, for example, as follows. (7) The method for manufacturing the cylinder 1 in the seventh aspect is: In this manufacturing method, the cylinder 1 is manufactured using the cylinder manufacturing support device M according to any one of the first to sixth embodiments. This manufacturing method comprises a preparation step S1 of preparing the plurality of metal plates 3, a first auxiliary metal plate 71a corresponding to the internal size and shape of the first axis Da1 and the second axis Da2 in the cylindrical axis direction Da of the cylinder 1, and a second auxiliary metal plate 71b corresponding to the internal size and shape of the second axis Da2 in the cylinder 1, and among the plurality of metal plates 3, the relative positional relationship between the first metal plate 3a and the third metal plate 3c that face each other across the cylindrical axis At is the positional relationship between the first metal plate 3a and the third metal plate 3c after the completion of the cylinder 1. A temporary joining step S2 in which the first metal plate 3a and the third metal plate 3c are temporarily joined to a part of the edge 6 of the first auxiliary metal plate 71a and a part of the edge 6 of the second auxiliary metal plate 71b so as to match the relative positional relationship with plate 3c; a placement step S3 in which the first metal plate 3a and the third metal plate 3c, which have been temporarily joined to the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, are placed on the slider 60 so as to extend the cylindrical axis line At in the depth direction Dl; and of the plurality of metal plates 3, the second metal plate 3b, excluding the first metal plate 3a and the third metal plate 3c, A joining plate arrangement step S4 is performed by positioning one of the metal plates 3, one of the first metal plate 3a and the third metal plate 3c, which are temporarily joined to the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, so that the edge 6 facing the circumferential direction Dc and extending in the cylindrical axis direction Da is adjacent to the edge 6 facing the circumferential direction Dc and extending in the cylindrical axis direction Da of the first auxiliary metal plate 71a and the second auxiliary metal plate 71b, and positioning the first auxiliary metal plate 71a and the second auxiliary metal plate 71b so that the position where the joining of the edge 6 of the second metal plate 3 to the edge 6 of the first metal plate 3 is to be performed in the cylindrical axis direction Da is located below the upper beam 12. A position adjustment step S5 involves moving the temporary assembly plate group 9, which is a collection of 1b, the first metal plate 3a, the second metal plate 3b, and the third metal plate 3c, in the depth direction Dl on the slider 60 to adjust the position of the temporary assembly plate group 9; a movement restriction step S6 involves operating the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b to sandwich the temporary assembly plate group 9 located at the work position between the first lateral pressing mechanism 20a and the second lateral pressing mechanism 20b, thereby restricting the movement of the temporary assembly plate group 9; and during the execution of the movement restriction step S6, the upper pressing mechanism 20,The process includes: an edge-facing processing step S7 in which one of the portions of the first metal plate 3 along a portion of the edge 6 extending in the cylindrical axis direction Da and the second metal plate 3b along a portion of the edge 6 extending in the cylindrical axis direction Da is pressed to bring the portion of the edge 6 of the first metal plate 3 and the portion of the edge 6 of the second metal plate 3b facing each other in the circumferential direction Dc; a joining process S8 in which the portion of the edge 6 of the first metal plate 3 and the portion of the edge 6 of the second metal plate 3b are joined together during the execution of the movement restricting process S6 and the edge-facing processing step S7; and an auxiliary plate removal process S11 in which the first auxiliary metal plate 71a and the second auxiliary metal plate 71b are removed from the first metal plate 3a and the third metal plate 3c after the plurality of metal plates 3 have been connected to each other. The position adjustment step S5, the movement restriction step S6, the edge facing process S7, and the joining step S8 are repeated until the entire edge 6 of the second metal plate 3b, extending in the direction Da of the cylindrical axis, is joined to the edge 6 of the first metal plate 3.

[0072] In the manufacturing method of the cylinder 1 in this embodiment, the cylinder manufacturing support device M described above is used, so the burden on the worker during cylinder manufacturing can be reduced. [Explanation of Symbols]

[0073] 1: tube 2a: First opening 2b:Second opening 3: Metal plate 3a: First metal plate 3b: Second metal plate 3c: Third metal plate 3d:Fourth metal plate 4: Inner surface 5: Outer surface 6: Edge 6a: First edge 6b: Second edge 9: Temporary assembly boards 10: Gate-type frame 11a: First pillar 11b:Second Pillar 12: Upper beam 13: Guide hole 20:Top pressing mechanism 20a: First lateral pressing mechanism 20b:Second lateral pressing mechanism 21: Bass 22: Tip 23: Contact end 30: Upper base support frame 31: Side panel 32: Base insertion hole 33: Bottom plate 34: Lateral movement restricting bolt 40a: First base support frame 40b: Second base support frame 41: Support plate 42: Base retaining ring 43: Oscillating axis 45a: First base oscillating mechanism 45b: Second base oscillation mechanism 46: Oscillating operating end 47: Oscillating screw 48: Oscillating link mechanism 49: Oscillating screw axis 50a: First support frame movement mechanism 50b: Second support frame movement mechanism 51: Moving operation end 52: Female threaded component 53: Connecting member 54: Moving screw axis 60: Slider 61: Laura Guide 62: Laura 65: Legs 69: Work board 71a: First auxiliary metal plate 71b:Second auxiliary metal plate 72: Sim M: Tube manufacturing support equipment At: cylinder axis Da: cylinder axis direction Da1: Axis line first side Da2: Second axis side Dc: Circumferential direction Dc1: First side in circumferential direction Dc2: Second side in circumferential direction Dl: Depth direction Ds: Horizontal Dv: Vertical direction Dro: Radial outward

Claims

1. In a cylinder manufacturing support apparatus used when manufacturing a cylinder, a plurality of metal plates extending in the direction of the cylinder axis and in the circumferential direction relative to the cylinder axis are arranged in the circumferential direction around the cylinder axis, and adjacent metal plates in the circumferential direction are joined together, A portal frame having first and second columns extending vertically and spaced apart from each other horizontally, and an upper beam extending horizontally and connecting the upper end of the first column and the upper end of the second column, A slider is provided between the first column and the second column, capable of supporting the plurality of metal plates so as to be movable in the depth direction perpendicular to the lateral and vertical directions. An upper pressing mechanism is attached to the upper beam so as to be movable laterally along the upper beam and capable of pressing against any of the metal plates supported by the slider among the plurality of metal plates, A first lateral pressing mechanism is attached to the first column and is capable of pressing any of the metal plates supported by the slider among the plurality of metal plates, A second lateral pressing mechanism is attached to the second column and is capable of pressing any of the metal plates supported by the slider among the plurality of metal plates, Equipped with, Tube manufacturing support equipment.

2. In the cylinder manufacturing support apparatus according to claim 1, The upper pressing mechanism, the first lateral pressing mechanism, and the second lateral pressing mechanism each have a base and a tip that is movable relative to the base in the direction of tip movement. The base of the upper pressing mechanism is attached to the upper beam such that the direction of movement of the tip has a component in the vertical direction, and the tip of the upper pressing mechanism faces downward. The base of the first lateral pressing mechanism is attached to the first column such that the direction of movement of the tip has a lateral component, and the tip of the first lateral pressing mechanism faces the side of the second column. The base of the second lateral pressing mechanism is attached to the second column such that the direction of movement of the tip has a lateral component, and the tip of the second lateral pressing mechanism faces the side of the first column. Tube manufacturing support equipment.

3. In the cylinder manufacturing support apparatus according to claim 2, A first base support frame is attached to the first column so as to be movable in the vertical direction, supporting the base of the first lateral pressing mechanism, A first support frame moving mechanism capable of moving the first base support frame in the vertical direction, A second base support frame, which supports the base of the second lateral pressing mechanism and is attached to the second column so as to be movable in the vertical direction, A second support frame moving mechanism that allows the second base support frame to be moved in the vertical direction, Equipped with, Tube manufacturing support equipment.

4. In the cylinder manufacturing support apparatus according to claim 3, The first base support frame pivotably supports the base of the first lateral pressing mechanism around a pivot axis extending in the depth direction. The second base support frame pivotably supports the base of the second lateral pressing mechanism around a pivot axis extending in the depth direction. A first base swing mechanism is attached to the first base support frame and is capable of swinging the base of the first lateral pressing mechanism around the swing axis of the first base support frame, A second base swing mechanism is attached to the second base support frame and is capable of swinging the base of the second lateral pressing mechanism around the swing axis of the second base support frame, Equipped with, Tube manufacturing support equipment.

5. In the cylinder manufacturing support apparatus according to claim 1, The aforementioned slider is A pair of roller guides extending in the depth direction and spaced apart from each other in the lateral direction, are arranged between the first column and the second column. A plurality of rollers are arranged in the depth direction, positioned between the pair of roller guides, and supported by the pair of roller guides so as to be rotatable about the roller axis extending in the lateral direction, Having, Tube manufacturing support equipment.

6. In the cylinder manufacturing support apparatus according to claim 1, The upper beam is curved such that as it approaches the center of the upper beam in the lateral direction from the first column, it gradually curves upward vertically, and as it approaches the center from the second column, it gradually curves upward vertically, with the portion of the upper pressing mechanism that includes the range of movement in the lateral direction being curved. Tube manufacturing support equipment.

7. A method for manufacturing a cylinder using a cylinder manufacturing support device according to any one of claims 1 to 6, A preparation step of preparing the plurality of metal plates, a first auxiliary metal plate corresponding to the internal size and shape of the first axis side of the cylinder and a second auxiliary metal plate corresponding to the internal size and shape of the second axis side of the cylinder, A temporary joining step in which the first metal plate and the third metal plate are temporarily joined to a part of the edge of the first auxiliary metal plate and a part of the edge of the second auxiliary metal plate, such that the relative positional relationship between the first metal plate and the third metal plate facing each other across the cylindrical axis matches the relative positional relationship between the first metal plate and the third metal plate after the cylinder is completed, A placement step of placing the first metal plate and the third metal plate, which are temporarily joined to the first auxiliary metal plate and the second auxiliary metal plate, on the slider so that the cylindrical axis extends in the depth direction, A joining plate arrangement step in which, among the plurality of metal plates, the edge of the second metal plate excluding the first metal plate and the third metal plate that faces the circumferential direction and extends in the direction of the cylindrical axis is adjacent to the edge of one of the metal plates, the first metal plate and the third metal plate, which are temporarily joined to the first auxiliary metal plate and the second auxiliary metal plate, that faces the circumferential direction and extends in the direction of the cylindrical axis, A position adjustment step involves moving the temporary assembly plate group, which is a collection of the first auxiliary metal plate, the second auxiliary metal plate, the first metal plate, the second metal plate, and the third metal plate, on the slider in the depth direction to adjust the position of the temporary assembly plate group, so that the position where the first metal plate is to be joined to the edge of the second metal plate in the direction of the cylindrical axis is located below the upper beam. A movement restriction step is performed by operating the first lateral pressing mechanism and the second lateral pressing mechanism to clamp the group of temporary assembly plates located at the work position between the first lateral pressing mechanism and the second lateral pressing mechanism, thereby restricting the movement of the group of temporary assembly plates. During the execution of the movement restriction step, the upper pressing mechanism presses one of the portions of the first metal plate along the edge extending in the direction of the cylindrical axis and the second metal plate along the edge extending in the direction of the cylindrical axis, thereby causing the portion of the edge of the first metal plate and the portion of the edge of the second metal plate to face each other in the circumferential direction in an edge opposing processing step. During the execution of the movement restriction process and the edge-facing processing process, a joining process is performed to join a part of the edge of one metal plate with a part of the edge of the second metal plate. After the plurality of metal plates are connected to each other, an auxiliary plate removal step is performed to remove the first auxiliary metal plate and the second auxiliary metal plate from the first metal plate and the third metal plate, Includes, The position adjustment step, the movement restriction step, the edge facing process step, and the joining step are repeated until the entire edge of the second metal plate extending in the direction of the cylindrical axis is joined to the edge of the first metal plate. A method for manufacturing a cylinder.

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