Middle beam assembling and welding tool for bogie machining

Abstract

The utility model relates to the technical field of railway vehicle production, in particular to a center sill installing and welding tool for bogie machining, and solves the problem that a center sill installing and welding tool for bogie machining in the prior art cannot adjust long plates, special-shaped plates and other specific-shaped parts in the vertical direction when the long plates, the special-shaped plates and other specific-shaped parts are processed. A center sill assembling and welding tool for bogie machining comprises a bottom plate, two long plates and a special-shaped plate, the special-shaped plate is arranged in the center of the top of the bottom plate, the two long plates are symmetrically arranged on the two sides of the special-shaped plate, clamping assemblies are arranged at the bottoms of the two long plates and the bottom of the special-shaped plate, and lifting assemblies are arranged on the two sides of the top of the bottom plate. The two lifting assemblies are connected with the adjacent clamping assemblies correspondingly. Accurate adjustment of the long plate and the special-shaped plate in the vertical direction is achieved through the lifting assembly, stability and accuracy in the welding process are guaranteed, and welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of rail vehicle manufacturing technology, and in particular to a welding fixture for the middle beam assembly in bogie processing. Background Technology

[0002] As one of the most important components in the structure of a rail vehicle, the performance and quality of the bogie directly affect the vehicle's driving stability and safety. The main structure of the bogie consists of a crossbeam and two side beams. The side beams are hollow structures composed of matching upper and lower plates, as well as vertical and end plates. Multiple stiffening plates are also installed inside the side beams to enhance their structural strength and stability. During the bogie manufacturing process, the welding of the center beam is a crucial step, directly affecting the overall quality and performance of the bogie.

[0003] In existing bogie machining center beam welding fixtures, such as the bogie welding fixture disclosed in utility model patent CN211564953U, the fixture includes components such as a base, platform, support platform, side top plate, upper pressure block, end top plate, and drive mechanism. This facilitates the positioning and fixing of the upper plate sections, simplifies welding operations, and reduces the deformation caused by plate movement during welding. However, in practical applications, this technical solution has gradually revealed certain limitations.

[0004] Specifically, existing welding fixtures for bogie machining cannot vertically adjust components with specific shapes, such as long plates and irregularly shaped plates. This results in long plates and irregularly shaped plates potentially not being at the same horizontal level during the welding process, thus affecting the quality and stability of the weld. More seriously, this height inconsistency may not only reduce the strength of the welded joint but also pose potential risks to the overall structure and performance of the bogie, increasing safety hazards during use.

[0005] Therefore, to address this deficiency in existing technologies, we urgently need a welding fixture for the center beam assembly in bogie processing to solve this problem. This fixture should be able to precisely adjust the long plate in the vertical direction, ensuring that the long plate and the irregularly shaped plate are at the same horizontal level during the welding process, thereby significantly improving the quality and stability of the welding. Utility Model Content

[0006] The purpose of this invention is to provide a welding fixture for the center beam assembly in bogie processing, which solves the problem that existing welding fixtures for the center beam assembly in bogie processing cannot adjust the vertical direction of components with specific shapes such as long plates and irregular plates.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A welding fixture for assembling the middle beam of a bogie includes a base plate, two long plates, and an irregularly shaped plate.

[0009] The irregularly shaped plate is located at the top center of the base plate, and the two long plates are symmetrically arranged on both sides of the irregularly shaped plate.

[0010] Clamping assemblies are provided at the bottom of both long plates and the irregularly shaped plate;

[0011] Lifting components are provided on both sides of the top of the base plate, and the two lifting components are respectively connected to the adjacent clamping components.

[0012] The clamping assembly includes a support plate and two clamping plates symmetrically arranged on the top of the support plate. Both clamping plates are connected to the top of the support plate through a lifting and adjusting structure.

[0013] A support platform is fixedly connected to the top center of the base plate, and the top of the support platform is bolted to the bottom of the adjacent support plate.

[0014] The lifting and adjusting structure includes two guide rods and an adjusting screw. One end of the guide rod slides through the clamping plate and is connected to the top of the support plate. One end of the adjusting screw is threaded through the clamping plate and is rotatably connected to the top of the support plate.

[0015] The lifting assembly includes a center plate, four sleeves connected to the four corners of the center plate, and a drive motor located at the bottom of the center plate. The output shaft of the drive motor is driven to a threaded cylinder with one end rotating through the center plate. The threaded cylinder has a lifting screw with one end fixedly connected to the bottom of the support plate. Each of the four sleeves has a lifting rod with one end connected to the bottom of the support plate.

[0016] The drive motor and the four sleeves are all fixedly connected to the top of the base plate by bolts, and the length of the internal threaded cylinder is greater than the length of the lifting screw.

[0017] This utility model has at least the following beneficial effects:

[0018] This invention ensures stable clamping of long plates and irregularly shaped plates during the welding process, effectively preventing displacement. At the same time, the introduction of the lifting assembly enables precise adjustment of the height of the long plates and irregularly shaped plates, allowing them to maintain the same horizontal level, thereby greatly improving the quality and stability of the welding and meeting the production requirements of bogie processing. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the lifting assembly and clamping assembly of this utility model;

[0022] Figure 3 This is a schematic diagram of the central plate and internally threaded cylinder structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the support plate and clamping plate structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the clamping assembly and support platform structure of this utility model.

[0025] In the diagram: 1. Base plate; 2. Long plate; 3. Irregularly shaped plate; 4. Lifting assembly; 5. Clamping assembly; 6. Support platform; 401. Drive motor; 402. Center plate; 403. Internal threaded cylinder; 404. Sleeve; 405. Lifting rod; 406. Lifting screw; 501. Clamping plate; 502. Guide rod; 503. Adjusting screw; 504. Support plate. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] Example 1

[0028] Please see Figure 1-5 As shown, a bogie machining center beam welding fixture of this embodiment includes a base plate 1, two long plates 2 and an irregular plate 3;

[0029] Base plate 1: Serves as the supporting foundation for the entire tooling, ensuring its stability on the worktable. Base plate 1 provides a flat surface for mounting other components, guaranteeing the stability and reliability of the entire tooling structure.

[0030] Clamping assembly 5 (located at the bottom of the two long plates 2 and the irregular plate 3): securely clamps the long plates 2 and the irregular plate 3 to ensure that they do not shift during welding.

[0031] Lifting assembly 4 (located on both sides of the top of the base plate 1): connected to the adjacent clamping assembly 5, used to precisely adjust the position of the long plate 2 in the vertical direction so that it is at the same horizontal height as the irregular plate 3.

[0032] The irregularly shaped plate 3 is located at the top center of the base plate 1, and two long plates 2 are symmetrically arranged on both sides of the irregularly shaped plate 3.

[0033] Clamping components 5 are provided at the bottom of both long plates 2 and irregularly shaped plates 3;

[0034] Lifting components 4 are provided on both sides of the top of the base plate 1, and the two lifting components 4 are respectively connected to the adjacent clamping components 5.

[0035] By setting up the lifting component 4, this utility model can achieve precise adjustment of the long plate 2 in the vertical direction, ensuring that the long plate 2 and the irregular plate 3 can be at the same horizontal height during the welding process.

[0036] This improvement not only significantly enhances the quality and stability of welding but also avoids the problems of reduced weld joint strength and damage to the overall structural performance of the bogie caused by inconsistent heights. Furthermore, the tooling structure of this invention is simple and easy to operate, greatly simplifying the welding process and improving production efficiency.

[0037] In summary, the bogie machining center beam welding fixture provided by this utility model effectively solves the problems in the prior art and provides a more reliable and efficient solution for bogie machining and production.

[0038] Example 2

[0039] Please see Figure 1-5 As shown, the clamping assembly 5 includes a support plate 504 and two clamping plates 501 symmetrically arranged on top of the support plate 504. Both clamping plates 501 are connected to the top of the support plate 504 via a lifting adjustment structure. Specifically, firstly, the long plate 2 or the irregularly shaped plate 3 is placed on the support plate 504. Then, by rotating the adjusting screw 503, the two clamping plates 501 slide along the guide rod 502 and clamp the long plate 2 or the irregularly shaped plate 3. This achieves the effect of firmly clamping long plates 2 and irregularly shaped plates 3 of different sizes and shapes, ensuring that they do not shift during the welding process.

[0040] The lifting assembly 4 includes a center plate 402, four sleeves 404 respectively connected to the four corners of the center plate 402, and a drive motor 401 located at the bottom of the center plate 402. The output shaft of the drive motor 401 is driven by an internally threaded cylinder 403 that rotates through the center plate 402. The internal thread of the internally threaded cylinder 403 is connected to a lifting screw 406, one end of which is fixedly connected to the bottom of the support plate 504. Each of the four sleeves 404 has a lifting rod 405 slidably connected inside, one end of which is connected to the bottom of the support plate 504. Specifically, when it is necessary to adjust the height of the long plate 2, the drive motor 401 is started, which drives the internally threaded cylinder 403 to rotate. The internally threaded cylinder 403 and the lifting screw 406 are threadedly engaged, thereby driving the support plate 504 and the long plate 2 to move up and down. At the same time, the lifting rod 405 slides within the sleeve 404 and acts as a guide. This achieves the effect of accurately and quickly adjusting the height of the long plate 2, ensuring that the long plate 2 and the irregular plate 3 are at the same horizontal level.

[0041] The drive motor 401 and the four sleeves 404 are all fixedly connected to the top of the base plate 1 with bolts. The length of the internal threaded cylinder 403 is greater than the length of the lifting screw 406. Specifically, when installing the lifting assembly 4, the drive motor 401 and sleeves 404 are first fixed to the base plate 1, then the center plate 402 and the internal threaded cylinder 403 are installed, and finally the lifting screw 406 and the lifting rod 405 are connected. The length design of the internal threaded cylinder 403 ensures that the lifting screw 406 has sufficient stroke for height adjustment. This enhances the stability and reliability of the lifting assembly 4, ensuring a smooth and accurate lifting process.

[0042] Example 3

[0043] Please see Figure 1-5 As shown, a support platform 6 is fixedly connected to the top center of the base plate 1. The top of the support platform 6 is bolted to the bottom of the adjacent support plate 504. When installing the clamping assembly 5 at the top center of the base plate 1, the support plate 504 is first aligned with the support platform 6 and fixed with bolts to ensure the stability and accuracy of the clamping assembly 5. This achieves the effect of enhancing the support strength of the clamping assembly 5 and improving the stability and durability of the entire tooling.

[0044] The lifting and adjusting structure includes two guide rods 502 and an adjusting screw 503. One end of the guide rod 502 slides through the clamping plate 501 and connects to the top of the support plate 504. One end of the adjusting screw 503 is threaded through the clamping plate 501 and rotatably connected to the top of the support plate 504. Specifically, when it is necessary to finely adjust the position of the clamping plate 501 according to the thickness of the long plate 2 or the irregular plate 3, the adjusting screw 503 can be rotated to make the clamping plate 501 slide up and down along the guide rod 502, thereby achieving precise height adjustment. This achieves the effect of flexibly adjusting the clamping height to adapt to different welding process requirements.

[0045] This solution includes the following workflow:

[0046] First, place the base plate 1 on a suitable workbench and ensure it is stable. Next, place the shaped plate 3 at the top center of the base plate 1, where it is further supported by the support platform 6 to enhance stability. Based on the specific structural requirements of the bogie's center beam, symmetrically arrange two long plates 2 on either side of the shaped plate 3.

[0047] At this point, both the long plate 2 and the irregularly shaped plate 3 are in a clamping state. The clamping assembly 5 is activated. This assembly includes a support plate 504 and two clamping plates 501 symmetrically arranged on top of the support plate 504. The long plate 2 or the irregularly shaped plate 3 is placed on the support plate 504, and then the adjusting screw 503 is rotated to allow the two clamping plates 501 to slide along the guide rod 502 and clamp the long plate 2 or the irregularly shaped plate 3. This design can firmly clamp long plates 2 and irregularly shaped plates 3 of different sizes and shapes, ensuring that they do not shift during welding.

[0048] After clamping, depending on the welding process requirements, it may be necessary to adjust the vertical position of the long plate 2 to make it at the same horizontal height as the irregular plate 3. For this purpose, the present invention provides a lifting assembly 4. The lifting assembly 4 includes a center plate 402, four sleeves 404 respectively connected to the four corners of the center plate 402, and a drive motor 401 located at the bottom of the center plate 402. The output shaft of the drive motor 401 is driven by an internally threaded cylinder 403 that rotatably passes through the center plate 402. The internal threads of the internally threaded cylinder 403 are connected to a lifting screw 406, one end of which is fixedly connected to the bottom of the support plate 504. Each of the four sleeves 404 has a lifting rod 405 slidably connected to a lifting rod 405, one end of which is connected to the bottom of the support plate 504.

[0049] When the height of the long plate 2 needs to be adjusted, the drive motor 401 is started, which drives the internal threaded cylinder 403 to rotate. Since the internal threaded cylinder 403 is threadedly engaged with the lifting screw 406, the rotating internal threaded cylinder 403 drives the support plate 504 and the long plate 2 to move up and down. Simultaneously, the lifting rod 405 slides within the sleeve 404, acting as a guide to ensure a smooth and accurate lifting process. The length of the internal threaded cylinder 403 is designed to be greater than the length of the lifting screw 406, ensuring that the lifting screw 406 has sufficient stroke for height adjustment.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A middle beam assembly welding tool for bogie machining, characterized in that, Include: The bottom plate, two long plates and special-shaped plates; The special-shaped plate is arranged at the top center of the bottom plate, and the two long plates are symmetrically arranged on both sides of the special-shaped plate; The bottom of the two long plates and the special-shaped plate is provided with a clamping assembly; The top of the bottom plate is provided with a lifting assembly on both sides, and the two lifting assemblies are connected with the adjacent clamping assemblies respectively.

2. The middle beam assembly welding tool for bogie machining according to claim 1, characterized in that, The clamping assembly comprises a supporting plate and two clamping plates symmetrically arranged on the top of the supporting plate, and the two clamping plates are connected with the top of the supporting plate through lifting adjusting structure.

3. The middle beam assembly welding tool for bogie machining according to claim 1, characterized in that, The top center of the bottom plate is fixedly connected with a supporting table, and the top of the supporting table is bolted with the bottom of the adjacent supporting plate.

4. The middle beam assembly welding tool for bogie machining according to claim 2, characterized in that, The lifting adjusting structure comprises two guide rods and an adjusting screw rod, one end of the guide rod is slidably connected with the top of the clamping plate and the supporting plate, and one end of the adjusting screw rod is threadedly connected with the top of the clamping plate and the supporting plate.

5. The middle beam assembly welding tool for bogie machining according to claim 2, characterized in that, The lifting assembly comprises a center plate, four sleeves respectively connected to the four corners of the center plate and a drive motor arranged at the bottom of the center plate, the output shaft of the drive motor is drivingly connected with an internally threaded cylinder rotatably penetrating the center plate, the internally threaded cylinder is internally threadedly connected with a lifting screw rod having one end fixedly connected with the bottom of the supporting plate, and the four sleeves are internally slidably connected with lifting rods having one end connected with the bottom of the supporting plate.

6. The middle beam assembly welding tool for bogie machining according to claim 5, characterized in that, The drive motor and the four sleeves are bolted with the top of the bottom plate, and the length of the internally threaded cylinder is greater than the length of the lifting screw rod.

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