JPH09221024A - Manufacture of rolling stock structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a welding operation work by a one-sided welding without inverting a member by a method wherein in the case that each of the blocks is welded from an inside part of a vehicle structure, at first an outer plate outside a compartment of the vehicle structure is butt welded to be connected and then a closing member and an inner plate of the compartment side are connected by welding from each other. SOLUTION: In the case that hollow extruded shaped-members 1, 1' are joined to each other, an outside plate 1a of a vehicle body block and an outer plate 1'a are abutted to each other and welded. After this operation, the closing shaped member 2 is mounted to connect an inner plate 1b and an inner plate 1'b inside the vehicle structure block and connected to each other by welding. Accordingly, during the welding operation, the welding of the hollow aluminum extruded shaped-outer plates 1a, 1'a and the welding of the inner plates 1b, 1'b can be completed from inside the vehicle compartment, resulting in that the workability of assembling or the like can be improved without inverting the members.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method of manufacturing a railway vehicle body structure.

[0002]

2. Description of the Related Art A railroad vehicle body structure composed of a plurality of hollow aluminum extruded shape members or a double skin material having a weld line on the front and back of a sandwich structure or the like, and mainly comprising a roof structure block, side structure blocks, underframe blocks, etc. Has a welding line on the indoor side and the outdoor side, it is necessary to perform double-sided welding. In the conventional structure manufacturing method, as in the method described in Japanese Patent Laid-Open No. 6-270797, for example, when welding is performed from the indoor side, it is necessary to invert the members and weld the outdoor side. Therefore, workability is poor because the reversal work is required during welding.

[0003]

In the prior art, a rail vehicle structure made of a double skin material having a weld line on the front and back sides such as a hollow aluminum extruded shape member or a sandwich structure has weld lines on the inside and the outside. However, it is necessary to weld both sides, and the work of reversing the members is involved, so the workability is poor.

An object of the present invention is to manufacture each structure block by welding using a double-skin material in which a weld line is formed on the front and back of a hollow aluminum extruded shape member or a sandwich structure, and does not involve reversal work of members. As described above, it is an object of the present invention to provide a method for manufacturing a railway vehicle structure in which welding work can be easily performed by welding from one side of the indoor side or the outdoor side.

[0005]

To achieve the above object, the present invention is composed of a plurality of hollow aluminum extruded profiles or a double skin material having a weld line on the front and back sides of a sandwich structure or the like, and is mainly a roof structure block. , A method of manufacturing a railway vehicle body structure including side structure blocks, underframe blocks, etc. For example, when each block is welded from the indoor side, first the outer plates of the outdoor side are butt-welded and then the closed type. Join the material and the inner plate on the indoor side by welding. Alternatively, when welding is performed from the outdoor side, the inner plate on the indoor side is butt welded and joined, and then the closing member and the outer plate on the outdoor side are welded.

As described above, the welding workability is improved because the welding can be performed from one side without inverting the member.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 shows one embodiment of the present invention, and shows a part of a double-skin structure having welded lines formed on the front and back sides of hollow aluminum extruded profiles 1, 1 '. In general, railway vehicle structures mainly consist of left and right side structure blocks, roof structure blocks,
It is composed of structural blocks such as a wife structural block and an underframe block. When manufacturing each structure block, a plurality of hollow aluminum extruded shape members are arranged on the work board, and the welding line 10 is connected by welding. FIG. 1 shows a situation in which a hollow aluminum extruded shape member 1 and another adjacent hollow aluminum extruded shape member 1 ′ are welded to each other via a closing shape member 2.

FIG. 2 shows a method of joining the hollow aluminum extruded shape members 1 and 1'shown in FIG. The outer plate 1a and the outer plate 1'a on the outdoor side of the structural block are butted against each other and welded. After that, the closing member 2 is installed so as to connect the inner plate 1b and the inner plate 1'b on the indoor side of the structure block, and they are joined by welding. Therefore, since the welding work of the outer plates 1a, 1'a and the inner plates 1b, 1'b of the hollow aluminum extruded shape need only be done from the inside of the room, there is no work of reversing the members and workability is improved. good.

Although the welding in FIGS. 1 and 2 has been performed from the inside of the room, it may be performed from the outside of the room.

FIG. 3 shows a state in which the underframe block 3 including the side beam members 5 and the side structure block 4 are joined in one embodiment of the present invention. The underframe block 3 of this embodiment is shown in FIGS.
Assembled by welding from the indoor side as manufactured by the method shown in. For example, the outer plate 5a of the side beam member 5 and the outer plate 3a of the underframe 3 are butted and welded. After that, the inner plate 5b of the side beam member 5 and the inner plate 3b of the underframe 3 are closed and welded via the frame member 2 '. The underframe block 3 and the side structure 4 thus manufactured are joined by indoor and outdoor double-sided welding.

FIG. 4 shows a vehicle body structure excluding a gable body structure including an underframe block 3, a side structure block 4, and a roof structure 6 including side beam members 5 manufactured by the method shown in FIGS.

FIG. 5 shows an embodiment of the present invention and shows a state of a joint portion in which an underframe block 3 including a side beam member 5 and a side structure block 4 are joined. This embodiment is an example in which the side beam member 5 and the side structure 4 joined to the underframe block 3 are joined from the indoor side. That is, the outer plate 5a of the side beam member 5 and the outer plate 4a of the side structure 4 are butted against each other and welded. After that, the inner plate 5b of the side beam member 5 and the inner plate 4b of the side structure 4 are closed and welded via the shape member 2 ″.

Similar to the above, the blocks can be joined to each other by welding the inside of the double-skin profile inner side panel and the outdoor side outer panel together.

FIG. 6 shows an embodiment of the present invention, showing a state of a joint portion in which an underframe block 3 including a side beam member 5 and a side structure block 4 are joined. The present embodiment is an example in which the side beam member 5 and the side structure 4 joined to the underframe block 3 are joined from the outdoor side. That is, the inner plate 5b of the side beam member 5 and the inner plate 4b of the side structure 4 are butted against each other and welded. After that, the outer plate 5a of the side beam member 5 and the outer plate 4a of the side structure 4 are closed and welded together via the frame member 2 ″. The underframe block 3 including the side beam member 5 is manufactured by this method. In this case, an example of performing the welding work from the outdoor side is shown.

Similar to the above, the blocks can be joined together by the welding work on the outside of both the outside plate and the inside plate of the double-skin profile. In short, when assembling by welding from the indoor side, the outer plate is welded first, then the inner plate is closed and welded through the shape member, and when assembling by welding from the outdoor side, the inner plate is Weld first,
After that, the outer plate is closed and welded through the shape member.

In FIG. 7, the closing member 2 '''may be formed in a predetermined shape from the viewpoint of joining the camouflage parts, strength, and the like.

Although the vehicle structure using the hollow aluminum frame material has been described in FIGS. 1 to 7, a sandwich structure may be used. FIG. 8 shows an example of a honeycomb panel having a sandwich structure. The honeycomb panel is a face plate 7a,
7b, 7'a, 7'b, core members 7c, 7'c, and shape members 7d, 7'd arranged around the panel. FIG. 8 shows a state in which the honeycomb panel 7 and another adjacent honeycomb panel 7'are joined by welding through the block member 2. The honeycomb panels are joined by the outer plate 7a on the outdoor side of the structural block of the honeycomb panels 7 and 7 ', and the shape member 7.
Weld welding is performed by abutting d with the outer plate 7'a and the shape member 7'd.
After that, the closing member 2 is attached to the inner plate 7 on the indoor side of the structure block.
b, the shape member 7d, the inner plate 7'b, and the shape member 7d are installed so as to be connected to each other and joined by welding. Therefore, the welding work is performed by welding the outer plates 7a and 7'a of the honeycomb panel, the shape members 7d and 7'd, and the inner plates 7b and 7'b and the shape members 7d and 7'd from the indoor side. Since work is required, there is no need to invert members and workability is good.

Although the welding shown in FIG. 8 is performed from the inside of the room, it may be performed from the outside of the room.

[0020]

According to the present invention, when at least each structure block is manufactured, the welding work can be performed without performing the reversing work, and the work cost can be reduced. According to the present invention,
Welding work can be performed from the indoor side or the outdoor side to join the structural blocks of the double skin.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a joint portion between hollow aluminum profiles of a structural block according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing an example of a welding work procedure of the embodiment in FIG.

FIG. 3 is a cross-sectional view of a joint portion between an underframe block and a side structure block according to an embodiment of the present invention.

FIG. 4 is a front view of a cross section of a vehicle body structure that is formed by joining the body structure blocks according to an embodiment of the present invention.

FIG. 5 is a cross-sectional view of a joint portion between the underframe block and the side structure block according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view of a joint portion between an underframe block and a side structure block according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view of a joint portion between hollow aluminum frame members of a structural block according to an embodiment of the present invention.

FIG. 8 is a cross-sectional view of a joint portion between honeycomb panels of a structural block according to an embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hollow aluminum profile, 2 ... Closed profile, 3 ... Underframe block, 4 ... Side structure block, 5 ... Side beam profile, 6 ... Roof structure block, 7 ... Honeycomb panel, 10 ... Welding line.

Claims (2)

[Claims] 1. A plurality of hollow aluminum extruded profiles or a double-skin material in which a weld line is formed on the front and back of a sandwich structure. Mainly a roof structure block, a side structure block,
In the method of manufacturing a railcar structure including an underframe block, in the manufacturing of the structure block, that is, in the welding operation of connecting the plurality of hollow aluminum extruded shape members or the plurality of materials of the sandwich structure, on the indoor side or A method for manufacturing a railway vehicle body structure, wherein each of the blocks is manufactured by performing welding from one side on the outdoor side without inverting the members. 2. A plurality of hollow aluminum extruded profiles or a double-skin material in which a weld line is formed on the front and back of a sandwich structure, which is mainly a roof structure block, a side structure block,
In a method for manufacturing a railway vehicle body structure including an underframe block or the like, when the respective body body blocks are welded to each other to finish the vehicle body structure, the railroad body is manufactured by welding from one side of an indoor side or an outdoor side. Manufacturing method of vehicle structure.