A method of assembling a railway wagon side wall

Abstract

The application discloses a kind of assembling methods of railway wagon side wall, by laying a reference wallboard on the support pier arrangement, and the same number of assembling wallboard is sequentially spliced and spot welded to form wallboard main body on the two sides of reference wallboard, then arranging upper side beam, sleeper column and side column on wallboard main body, positioning sleeper column, side column after welding good upper side beam, and tightly welding, finally assembling and welding horizontal band complete the assembly of side wall, after setting reference wallboard, assembling is carried out respectively from the two sides of reference wallboard, improve the assembly efficiency, and not completely dependent on the accuracy of preceding assembly, the accumulated assembly error in traditional assembly method is dispersed to the two sides of reference wallboard, reduce the error of reference wallboard and wallboard main body two ends, improve the assembly precision of side wall.

Description

Technical Field

[0001] This application relates to the field of railway freight car manufacturing technology, and in particular to a method for assembling the sidewall of a railway freight car. Background Technology

[0002] Railway freight cars primarily transport goods and can be categorized into general-purpose freight cars and special-purpose freight cars based on their intended use. General-purpose freight cars are vehicles suitable for transporting a variety of goods, such as open wagons, boxcars, and flatcars. Special-purpose freight cars are vehicles used for transporting a specific type of goods, such as coal cars, container cars, and bulk cement cars.

[0003] Traditional railway freight car wall panel assembly is usually carried out on a large work platform, with one end as the reference and assembly proceeding sequentially to the other end. This assembly method is inefficient, and because it accumulates the cutting errors of each wall panel component from one side to the other, the error accumulation leads to an inability to control the size and shape accuracy of the assembled wall panels. In some cases, it can even result in large errors that prevent welding assembly and waste materials. Summary of the Invention

[0004] In view of the deficiencies in the prior art, this application provides a method for assembling the side wall of a railway freight car to solve the problems of large assembly errors and low efficiency of the wall panel assembly components in the prior art.

[0005] The above-mentioned objectives of the present invention are mainly achieved through the following technical solutions:

[0006] A method for assembling a sidewall of a railway freight car, comprising:

[0007] S1. Arrange support piers and lay a reference wall panel on the support piers;

[0008] S2. Assemble the same number of wall panels on both sides of the base wall panel to form the main body of the wall panel;

[0009] S3. Arrange the upper side beam on the main body of the wall panel, tighten the end of the upper side beam, and weld it to the main body of the wall panel;

[0010] S4. Arrange the sleeper columns and side columns at intervals and parallel on the main body of the wall panel, and position and weld the sleeper columns and side columns respectively;

[0011] S5. Take multiple horizontal strips, position them using an assembly template, and weld them onto the main body of the wall panel.

[0012] Furthermore, in step S1, multiple support piers are provided, arranged in parallel and at intervals, and the support piers are movably set on the assembly platform.

[0013] Furthermore, each of the supporting piers is provided with a positioning block on one side, and both the assembled wall panel and the reference wall panel are provided with a bent portion on the side away from the upper beam for contacting the positioning block.

[0014] Furthermore, in step S3, the upper beam is bent with a deflection of 6 mm.

[0015] Furthermore, a tensioning device is installed on one side of the upper beam, and the middle part of the upper beam is driven to bend towards the upper part of the wall panel body in the width direction through the tensioning device until the upper beam has a deflection of 6mm and is then welded to the wall panel body.

[0016] Furthermore, multiple positioning blocks located on both sides of the reference wall panel are arranged in a staggered manner so that the top of the reference wall panel and the multiple assembled wall panels are covered by the side wall of the upper side beam.

[0017] Furthermore, the center of the upper side beam is aligned with the center of the reference wall panel, and the top misalignment distance between the reference wall panel and the adjacent assembled wall panel is the same as the top misalignment distance between two adjacent assembled wall panels.

[0018] Further, in step S4, the pillow column and the side column are positioned using a first positioning fixture. The first positioning fixture includes a lifting part and a U-shaped clamping part. The lifting part is connected to the U-shaped clamping part and drives the U-shaped clamping part to move closer to or away from the wall panel body. The U-shaped clamping part is used to clamp the end of the pillow column or the side column near the upper side beam so that the pillow column or the side column is close to the wall panel body.

[0019] Further, in step S4, the pillow column and the side column are positioned using a second clamping device. The second clamping device includes a pushing part and an inclined abutment plate. The pushing part is connected to the abutment plate and drives the abutment plate to press against the end of the pillow column or the side column away from the upper side beam.

[0020] Furthermore, in step S4, one side of the assembly template has multiple positioning grooves for accommodating the horizontal strip.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] This invention involves laying a reference wall panel on a supporting pier, then sequentially splicing the same number of assembled wall panels on both sides of the reference wall panel and spot welding them to form the main body of the wall panel. Next, upper side beams, bolster columns, and side columns are arranged on the main body of the wall panel. After welding the upper side beams, the bolster columns and side columns are positioned and welded tightly. Finally, the horizontal strips are assembled to complete the side wall assembly. By setting the reference wall panel, assembly is performed from both sides of the reference wall panel, improving assembly efficiency and reducing reliance on the accuracy of the initial assembly. This disperses the assembly errors accumulated in traditional assembly methods to both sides of the reference wall panel, reducing the error between the reference wall panel and the two ends of the main body of the wall panel, and improving the assembly accuracy of the side wall. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 An assembly diagram of the reference wall panel and the assembled wall panel provided for embodiments of this application;

[0025] Figure 2 This is a structural schematic diagram of the upper side beam provided in an embodiment of this application;

[0026] Figure 3 A side view of a portion of the support pier provided in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of the assembly template provided in the embodiments of this application;

[0028] Figure 5 A front view of the first positioning fixture provided in an embodiment of this application;

[0029] Figure 6 A side view of the first positioning fixture provided in an embodiment of this application;

[0030] Figure 7 A front view of the second clamping fixture provided in an embodiment of this application;

[0031] Figure 8 A side view of the second clamping fixture provided in an embodiment of this application.

[0032] In the diagram: 1. Upper side beam; 2. Main wall panel; 21. Base wall panel; 22. Assembled wall panel; 23. Bending section; 3. Support pier; 31. Positioning block; 4. Assembly template; 41. Positioning groove; 51. Lifting section; 52. U-shaped clamping section; 61. Propulsion section; 62. Supporting plate. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid in understanding the invention, but does not constitute a limitation thereof. The specific structural and functional details disclosed herein are merely for describing exemplary embodiments of the invention. However, the invention can be embodied in many alternative forms and should not be construed as being limited to the embodiments described herein.

[0034] See Figure 1-8 As shown.

[0035] A method for assembling a sidewall of a railway freight car, comprising:

[0036] S1. Arrange support piers 3, and lay a reference wall panel 21 on the support piers 3;

[0037] According to the dimensions and specifications of the truck sidewall, the support blocks 3 are arranged on the assembly work platform, and the support blocks 3 can be set as steel support blocks 3 to improve the strength of the support blocks 3.

[0038] S2. The same number of assembled wall panels 22 are sequentially spliced ​​on both sides of the base wall panel 21 to form the wall panel body 2;

[0039] Based on the length design specifications of the truck sidewall, the width of the reference wall panel 21 and the assembled wall panel 22 are designed and controlled so that the number of assembled wall panels 22 set on both sides of the reference wall panel 21 is the same. For example, if three assembled wall panels 22 are configured on one side of the reference wall panel 21, correspondingly, three assembled wall panels 22 are also configured on the other side of the reference wall panel 21.

[0040] Furthermore, when assembling wall panel 22, the assembly of wall panel 22 can be carried out simultaneously on both sides of the reference wall panel 21, which improves the assembly efficiency of wall panel 22. Moreover, the working platforms on both sides of the reference wall panel 21 do not interfere with each other. Even if the assembly of wall panel 22 on one side of the reference wall panel 21 needs to be adjusted and the assembly is paused, the assembly of wall panel 22 on the other side of the reference wall panel 21 can continue, which improves the assembly efficiency.

[0041] S3. Arrange an upper side beam 1 on the wall panel body 2, tighten the end of the upper side beam 1, and weld the upper side beam 1 to the wall panel body 2. That is, by tightening one side of the upper side beam 1, the upper side beam 1 is stably held against the position where welding and fixing are required.

[0042] S4. Arrange the pillow columns and side columns at intervals and parallel on the wall panel body 2, and use the first positioning fixture to position the pillow columns or side columns respectively, use the second tightening fixture to tighten the pillow columns or side columns, and weld them.

[0043] The first positioning fixture positions the pillow column or side column to prevent the pillow column or side column from shifting left or right on the wall panel body 2. At the same time, it presses one end of the pillow column or side column onto the wall panel body 2 to prevent welding gaps between the one end of the pillow column or side column and the wall panel body 2, which would lead to poor assembly accuracy.

[0044] The second clamping fixture clamps the pillow column or side column, ensuring that the end of the pillow column or side column is always clamped to one side of the upper side beam 1, thereby improving welding stability.

[0045] S5. Take multiple crossbands, position them using assembly template 4, and weld them. With the help of assembly template 4, maintain a uniform spacing between the crossbands, improve the accuracy of crossband arrangement, increase crossband welding efficiency, and avoid manual measurement and confirmation of each one.

[0046] The working principle of this embodiment is as follows: A reference wall panel 21 is laid on the support pier 3, and the same number of assembled wall panels 22 are sequentially spliced ​​on both sides of the reference wall panel 21 and spot-welded to form the wall panel body 2. Then, the upper side beam 1, the pillow column and the side column are arranged on the wall panel body 2. After the upper side beam 1 is welded, the pillow column and the side column are positioned and welded tightly. Finally, the horizontal band is assembled to complete the assembly of the side wall. After setting the reference wall panel 21, the assembly is carried out from both sides of the reference wall panel 21, which improves the assembly efficiency and does not completely rely on the accuracy of the previous assembly. The assembly error accumulated in the traditional assembly method is distributed to both sides of the reference wall panel 21, reducing the error between the reference wall panel 21 and the two ends of the wall panel body 2, and improving the assembly accuracy of the side wall.

[0047] Furthermore, in step S2, after the same number of assembled wall panels 22 are sequentially spliced ​​on both sides of the reference wall panel 21, the reference wall panel 21 and the assembled wall panel 22 are spot welded.

[0048] Furthermore, based on the above embodiments, in step S1, multiple support piers 3 are provided and arranged in parallel and at intervals, and the support piers 3 are movably set on the assembly platform.

[0049] The support pier 3 is movably mounted on the assembly platform. The support pier 3 can be moved by using a track moving mechanism or by directly installing rollers at the bottom of the support pier 3.

[0050] Multiple movable support blocks 3 are arranged at corresponding positions of each bolster and side column. The purpose is to support the wall panel and bolster and side column simultaneously when each bolster and side column is pressed and spot welded, so that the entire wall panel body 2 can still maintain good flatness and improve the stability and assembly accuracy of the side wall assembly.

[0051] Furthermore, based on the above embodiments, each of the support piers 3 is provided with a positioning block 31 on one side, and both the assembled wall panel 22 and the reference wall panel 21 are provided with a bent portion 23 on the side away from the upper beam 1 for contacting the positioning block 31.

[0052] By setting the positioning block 31 and the bending part 23, during the assembly process of the reference wall panel 21 and the assembled wall panel 22, the contact relationship between the bending part 23 and the positioning block 31 can be used to determine whether the reference wall panel 21 and the assembled wall panel 22 are assembled to the design position, thereby improving assembly efficiency and accuracy, avoiding manual repetitive positioning of the reference wall panel 21 and the assembled wall panel 22, and reducing manual labor intensity.

[0053] Furthermore, based on the above embodiment, in step S3, the upper side beam 1 is bent with a deflection of 6mm.

[0054] The upper side beam 1 is designed with a bending radius of 6mm to improve its structural performance. Furthermore, after the upper side beam 1 with a bending radius of 6mm is stably welded to the main body of the wall panel 2, its resistance to deformation during railway freight car loading is improved.

[0055] It is worth noting that, depending on the design of different side wall specifications, the deflection of the upper side beam 1 can be set to different numbers, specifically 5mm-8mm. When the deflection of the upper side beam 1 exceeds 8mm, the upper side beam 1 is prone to end face wrinkles, resulting in reduced performance. When the deflection of the upper side beam 1 is less than 5mm, the upper side beam 1 has low resistance to deformation.

[0056] Furthermore, based on the above embodiment, a tensioning device is installed on one side of the upper beam 1, and the middle part of the upper beam 1 is driven to bend towards the upper part of the wall panel body 2 in the width direction through the tensioning device until the upper beam 1 has a deflection of 6mm and is then welded to the wall panel body 2, so that when the upper beam 1 is bent with a certain deflection, it can be stably kept in a bent and static state according to the design requirements, so as to facilitate welding.

[0057] The tensioning device can be a cylinder, with the telescopic end of the cylinder connected to the middle of the upper side beam 1.

[0058] Furthermore, based on the above embodiment, multiple positioning blocks 31 located on both sides of the reference wall panel 21 are arranged in a staggered manner so that the top of the reference wall panel 21 and the multiple assembled wall panels 22 are covered by the side wall of the upper side beam 1.

[0059] With the upper side beam 1 having a bending deflection of 6mm, the reference side wall and the assembled wall panels 22 on both sides are arranged in a staggered manner to prevent the ends of the reference side wall and the assembled wall panels 22 on both sides from extending to one side of the upper side plate. This improves the correspondence between the assembly position of the reference side wall and the assembled wall panels 22 on both sides and the upper side beam 1, enhances the overall stability, and further improves the overall structural performance and load-bearing capacity of the truck.

[0060] Furthermore, based on the above embodiments, the center of the upper beam 1 is aligned with the center of the reference wall panel 21, and the top misalignment distance between the reference wall panel 21 and the adjacent assembled wall panel 22 is the same as the top misalignment distance between the two adjacent assembled wall panels 22, so as to maintain the symmetrical arrangement of the assembled wall panels 22 on both sides of the reference wall panel 21 and improve the overall stability after welding.

[0061] Furthermore, based on the above embodiments, in step S4, the first positioning fixture includes a lifting part 51 and a U-shaped clamping part 52. The lifting part 51 is connected to the U-shaped clamping part 52 and drives the U-shaped clamping part 52 to move closer to or away from the wall panel body 2. The U-shaped clamping part 52 is used to clamp the end of the pillow column or the side column near the upper side beam 1 so that the pillow column or the side column is close to the wall panel body 2.

[0062] Furthermore, based on the above embodiments, in step S4, the second clamping fixture includes a pushing part 61 and an inclined abutment plate 62. The inclined abutment plate 62 can maintain the pusher and give the pillow column or side column a force toward the wall panel body 2, thereby improving the stability in the abutment state.

[0063] The propulsion device can be a lead screw or a cylinder.

[0064] The propulsion unit 61 is connected to the abutment plate 62 and drives the abutment plate 62 to press against the end of the pillow column or the side column away from the upper side beam 1.

[0065] Furthermore, based on the above embodiments, in step S4, the assembly template 4 has multiple positioning grooves 41 on one side for accommodating the crossbands, which avoids operators from positioning the crossbands one by one, improves the efficiency of crossband arrangement, and also avoids the crossbands from shifting during the welding process, affecting the accuracy of assembly and welding.

[0066] It should be understood that the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Although the terms "first," "second," etc., may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, a first unit may be referred to as a second unit, and similarly, a second unit may be referred to as a first unit, without departing from the scope of the exemplary embodiments of the invention.

[0067] It should be understood that the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" in this article describes another relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it are in an "or" relationship.

[0068] It should be understood that in the description of this invention, the terms "upper," "vertical," "inner," "outer," etc., indicate the orientation or positional relationship as commonly placed when the disclosed product is used, or the orientation or positional relationship commonly understood by those skilled in the art. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0069] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0070] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments of the invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” “containing,” and / or “including” as used herein specify the presence of the stated features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or combinations thereof.

[0071] Specific details are provided in the following description to provide a complete understanding of the exemplary embodiments. However, those skilled in the art will understand that the exemplary embodiments can be implemented without these specific details. In other embodiments, well-known processes, structures, and techniques may be omitted in the depiction of non-essential details to avoid obscuring the exemplary embodiments.

[0072] The above are merely specific embodiments of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method of assembling a railway freight car side wall, comprising: It includes: S1. Arrange support piers and lay a reference wall panel on the support piers. Multiple support piers are arranged in parallel at intervals. The support piers are movably set on the assembly platform. Each support pier has a positioning block on one side. Both the assembled wall panel and the reference wall panel have a bent part on the side away from the upper side beam for contacting the positioning block. Multiple positioning blocks located on both sides of the reference wall panel are arranged in a staggered manner so that the top of the reference wall panel and the multiple assembled wall panels are covered by the side wall of the upper side beam. S2. Assemble the same number of wall panels on both sides of the base wall panel to form the main body of the wall panel; S3. Arrange the upper side beam on the main body of the wall panel, tighten the end of the upper side beam, and weld it to the main body of the wall panel; S4. Arrange the sleeper columns and side columns at intervals and parallel on the main body of the wall panel, and position and weld the sleeper columns and side columns respectively; S5. Take multiple horizontal strips, position them using an assembly template, and weld them onto the main body of the wall panel.

2. The assembly method of the railway freight car sidewall as described in claim 1, characterized in that: In step S3, the upper beam is bent with a deflection of 6 mm.

3. The assembly method for the sidewall of a railway freight car as described in claim 2, characterized in that: A tensioning device is installed on one side of the upper beam, and the middle part of the upper beam is driven to bend towards the upper part of the wall panel body in the width direction through the tensioning device until the upper beam has a deflection of 6mm and then is welded to the wall panel body.

4. The assembly method for the sidewall of a railway freight car as described in claim 1, characterized in that: The center of the upper side beam is aligned with the center of the reference wall panel, and the top misalignment distance between the reference wall panel and the adjacent assembled wall panel is the same as the top misalignment distance between two adjacent assembled wall panels.

5. The assembly method for the sidewall of a railway freight car as described in claim 1, characterized in that: In step S4, the pillow column and the side column are positioned using a first positioning fixture. The first positioning fixture includes a lifting part and a U-shaped clamping part. The lifting part is connected to the U-shaped clamping part and drives the U-shaped clamping part to move closer to or away from the wall panel body. The U-shaped clamping part is used to clamp the end of the pillow column or the side column near the upper side beam so that the pillow column or the side column is close to the wall panel body.

6. The assembly method of the railway freight car sidewall as described in claim 1, characterized in that: In step S4, the pillow column and the side column are positioned using a second clamping device. The second clamping device includes a pushing part and an inclined abutment plate. The pushing part is connected to the abutment plate and drives the abutment plate to press against the end of the pillow column or the side column away from the upper side beam.

7. The assembly method of the railway freight car sidewall as described in claim 1, characterized in that: In step S4, one side of the assembly template has multiple positioning grooves for accommodating the horizontal strip.

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