Rapid welding device based on locomotive chassis welding

By designing a rapid welding device that includes a base plate, slide rail, support frame, slide plate, electric telescopic rod, and positioning plate, the problem of welding position deviation of locomotive underframe was solved, and the stability and efficiency of welding were improved.

CN223762466UActive Publication Date: 2026-01-06CRRC DALIAN CO LTD
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Patent Information

Application Number
CN202520216705.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-12
Publication Date
2026-01-06
Estimated Expiration
2035-02-12

AI Technical Summary

Technical Problem

The existing locomotive underframe welding equipment is prone to welding position deviation when changing positions, resulting in inaccurate welding and affecting welding efficiency.

Method used

A rapid welding device was designed, comprising a base plate, slide rail, support frame, slide plate, electric telescopic rod, welding mechanism, and positioning plate. The positioning plate of the telescopic rod is driven by spring force to abut the welding position. Combined with the sliding adjustment of the slide plate and support frame, the stability and accuracy of the welding position are ensured.

Benefits of technology

This improved the stability and efficiency of locomotive underframe welding, prevented welding misalignment, and ensured the accuracy of welding positions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of locomotive body steel structure welding, in particular to a quick welding device based on locomotive chassis welding, which comprises a bottom plate, sliding rails are fixedly connected to the outer walls of the two sides of the bottom plate, a supporting frame is slidably connected to the outer walls of the sliding rails, and a sliding plate is slidably connected to the top of the supporting frame. An electric telescopic rod is installed at the top of the sliding plate in a penetrating mode, a welding mechanism is fixedly connected to the bottom end of the electric telescopic rod, a welding head is arranged at the bottom end of the welding mechanism, a fixing sleeve is fixedly connected to the outer wall of the welding head, a telescopic mechanism is arranged on the outer wall of the fixing sleeve, and a positioning plate is fixedly connected to the bottom of the telescopic mechanism. The telescopic rod is driven by the elastic force of the spring to slide on the inner side of the connecting sleeve, so that the telescopic rod drives the positioning plate to abut against the welding position, the stability of the welding position of the locomotive chassis during welding is guaranteed, welding deviation is avoided, and the welding efficiency of a worker on the locomotive chassis is improved.
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Description

Technical Field

[0001] This utility model relates to the field of locomotive body steel structure welding technology, specifically a rapid welding device based on locomotive underframe welding. Background Technology

[0002] The locomotive underframe is a rectangular frame composed of various longitudinal and transverse steel beams. It supports the car body and serves as its foundation. The underframe bears the entire weight of the upper car body and its load, and transmits this weight to the running gear via upper and lower center plates. During train operation, it also withstands the locomotive's traction force and various impacts and other external forces generated during train movement. Welding equipment is used in the manufacturing of locomotive underframes, leading to continuous innovation and development of rapid welding devices based on locomotive underframe welding. However, current rapid welding devices for locomotive underframe welding still have some problems.

[0003] In practical use, existing welding devices often need to be repositioned to weld the locomotive underframe. When the welding device is repositioned to weld the locomotive underframe, deviations in the welding position may occur, resulting in welding errors on the locomotive underframe. This makes it inconvenient for workers to perform rapid welding. Therefore, there is an urgent need for a rapid welding device based on locomotive underframe welding to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a rapid welding device based on locomotive underframe welding, so as to solve the problem mentioned in the background art that when the welding device is changed to weld the locomotive underframe, the welding position may be deviated, resulting in deviation of the locomotive underframe welding and making it inconvenient for workers to perform rapid welding.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rapid welding device based on locomotive underframe welding, comprising a base plate, with slide rails fixedly connected to both outer walls of the base plate, a support frame slidably connected to the outer wall of the slide rails, a slide plate slidably connected to the top of the support frame, an electric telescopic rod installed through the top of the slide plate, a welding mechanism fixedly connected to the bottom end of the electric telescopic rod, a welding head provided at the bottom end of the welding mechanism, a fixing sleeve fixedly connected to the outer wall of the welding head, a telescopic mechanism provided on the outer wall of the fixing sleeve, and a positioning plate fixedly connected to the bottom of the telescopic mechanism.

[0006] Preferably, a support plate is slidably connected to the inner side of the base plate, and a return spring is fixedly connected to the inner bottom wall of the base plate, with the top end of the return spring connected to the bottom of the support plate.

[0007] Preferably, the inner wall of the base plate is fixedly connected to a guide rail, and the outer wall of the support plate is fixedly connected to a limit block, which is slidably connected to the inner side of the guide rail.

[0008] Preferably, the inner wall of the support frame is fixedly connected to a slider, and the slider is slidably connected to the inner side of the slide rail.

[0009] Preferably, the top of the support frame is provided with a sliding hole, and the bottom of the slide plate is fixedly connected to a connecting block, which is slidably connected to the inside of the sliding hole.

[0010] Preferably, the telescopic mechanism includes a connecting sleeve, which is fixedly connected to the outer wall of the fixed sleeve. A telescopic rod is slidably connected to the inner side of the bottom end of the connecting sleeve, and the bottom end of the telescopic rod is connected to the top of the positioning plate.

[0011] Preferably, a spring is fixedly connected to the inner top wall of the fixed sleeve, and the bottom end of the spring is connected to the top of the telescopic rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. The telescopic rod slides inside the connecting sleeve by the spring force, so that the telescopic rod drives the positioning plate to abut against the welding position, ensuring the stability of the locomotive underframe welding position during welding, avoiding welding displacement, and thus improving the efficiency of workers welding the locomotive underframe.

[0014] 2. The position of the welding mechanism can be adjusted laterally by sliding the slide plate on the top of the support frame, and the position of the welding mechanism can be adjusted longitudinally by sliding the support frame on the outer wall of the base plate, so that the welding mechanism and the welding head can better weld the locomotive underframe. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the base plate of this utility model;

[0017] Figure 3 This is a schematic diagram of the support frame of this utility model;

[0018] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model;

[0019] Figure 5 This is a cross-sectional schematic diagram of the positioning mechanism of this utility model.

[0020] In the diagram: 1. Base plate; 2. Return spring; 3. Support plate; 4. Guide rail; 5. Limiting block; 6. Slide rail; 7. Support frame; 8. Slider; 9. Sliding hole; 10. Slide plate; 11. Connecting block; 12. Electric telescopic rod; 13. Welding mechanism; 14. Welding head; 15. Fixing sleeve; 16. Connecting sleeve; 17. Telescopic rod; 18. Spring; 19. Positioning plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5 One embodiment provided by this utility model:

[0023] A rapid welding device based on locomotive underframe welding includes a base plate 1. Slide rails 6 are fixedly connected to both outer walls of the base plate 1. A support frame 7 is slidably connected to the outer wall of the slide rails 6. A slide plate 10 is slidably connected to the top of the support frame 7. An electric telescopic rod 12 is installed through the top of the slide plate 10. A welding mechanism 13 is fixedly connected to the bottom end of the electric telescopic rod 12. A welding head 14 is provided at the bottom end of the welding mechanism 13. A fixing sleeve 15 is fixedly connected to the outer wall of the welding head 14. A telescopic mechanism is provided on the outer wall of the fixing sleeve 15. A positioning plate 19 is fixedly connected to the bottom of the telescopic mechanism.

[0024] During the welding of the locomotive underframe, the welding mechanism 13 and the welding head 14 can be used to weld the locomotive underframe. During the welding of the locomotive underframe, the telescopic mechanism can drive the positioning plate 19 to position the welding position of the locomotive underframe, thereby ensuring the stability of the welding position of the locomotive underframe. Then, the sliding plate 10 slides on the top of the support frame 7, thereby adjusting the position of the welding mechanism 13 laterally. Then, the support frame 7 slides on the outer wall of the base plate 1, thereby adjusting the position of the welding mechanism 13 longitudinally, so that the welding mechanism 13 and the welding head 14 can better weld the locomotive underframe.

[0025] Furthermore, a support plate 3 is slidably connected to the inner side of the base plate 1, and a return spring 2 is fixedly connected to the inner bottom wall of the base plate 1, with the top of the return spring 2 connected to the bottom of the support plate 3.

[0026] The spring force of the return spring 2 can drive the support plate 3 to slide. When the locomotive underframe is placed above the support plate 3, the support plate 3 can drive the locomotive underframe to make close contact with the welding head 14, thereby improving the welding efficiency of the welding head 14 on the locomotive underframe.

[0027] Furthermore, a guide rail 4 is fixedly connected to the inner wall of the base plate 1, a limit block 5 is fixedly connected to the outer wall of the support plate 3, and the limit block 5 is slidably connected to the inner side of the guide rail 4. A slider 8 is fixedly connected to the inner wall of the support frame 7, and the slider 8 is slidably connected to the inner side of the slide rail 6.

[0028] The limiting block 5 is slidably connected to the inside of the guide rail 4, thereby ensuring the stability of the support plate 3 when sliding up and down. The slider 8 is slidably connected to the inside of the slide rail 6, thereby ensuring the stability of the support frame 7 when sliding.

[0029] Furthermore, the top of the support frame 7 is provided with a sliding hole 9, and the bottom of the slide plate 10 is fixedly connected with a connecting block 11, and the connecting block 11 is slidably connected to the inside of the sliding hole 9.

[0030] The connecting block 11 is slidably connected to the inside of the sliding hole 9, thereby ensuring the stability of the slide plate 10 when sliding.

[0031] Furthermore, the telescopic mechanism includes a connecting sleeve 16, which is fixedly connected to the outer wall of the fixed sleeve 15. A telescopic rod 17 is slidably connected to the inner side of the bottom end of the connecting sleeve 16, and the bottom end of the telescopic rod 17 is connected to the top of the positioning plate 19. A spring 18 is fixedly connected to the inner top wall of the fixed sleeve 15, and the bottom end of the spring 18 is connected to the top of the telescopic rod 17.

[0032] When the welding head 14 is in use, the spring 18 drives the telescopic rod 17 to slide inside the connecting sleeve 16, thereby causing the telescopic rod 17 to drive the positioning plate 19 to abut against the welding position, ensuring the stability of the locomotive underframe welding position during welding, avoiding welding displacement, and thus improving the efficiency of workers welding the locomotive underframe.

[0033] Working principle: During the welding of the locomotive underframe, the welding mechanism 13 and the welding head 14 can be used to weld the locomotive underframe. During the welding of the locomotive underframe, the spring 18 drives the telescopic rod 17 to slide inside the connecting sleeve 16, thereby causing the telescopic rod 17 to drive the positioning plate 19 to abut against the welding position, ensuring the stability of the locomotive underframe welding position during welding, avoiding welding displacement, and thus improving the efficiency of the workers in welding the locomotive underframe. Then, the sliding plate 10 slides on the top of the support frame 7, thereby allowing the position of the welding mechanism 13 to be adjusted laterally. Then, the support frame 7 slides on the outer wall of the base plate 1, thereby allowing the position of the welding mechanism 13 to be adjusted longitudinally, so that the welding mechanism 13 and the welding head 14 can better weld the locomotive underframe.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rapid welding device based on welding of a locomotive chassis, comprising a base plate (1), characterized in that: Both sides of the bottom plate (1) are fixedly connected with slide rails (6), outer walls of the slide rails (6) are slidably connected with support frames (7), top portions of the support frames (7) are slidably connected with slide plates (10), the slide plates (10) are penetrated and installed with electric telescopic rods (12) at top portions thereof, bottom ends of the electric telescopic rods (12) are fixedly connected with welding mechanisms (13), bottom ends of the welding mechanisms (13) are provided with welding heads (14), outer walls of the welding heads (14) are fixedly connected with fixed sleeves (15), outer walls of the fixed sleeves (15) are provided with telescopic mechanisms, and bottom portions of the telescopic mechanisms are fixedly connected with positioning plates (19).

2. A rapid welding device based on the welding of the chassis of a locomotive according to claim 1, characterized in that: The bottom plate (1) is slidably connected with a support plate (3) on the inner side, the bottom plate (1) is also fixedly connected with a return spring (2) on the inner bottom wall, and the top end of the return spring (2) is connected with the bottom portion of the support plate (3). The inner side wall of the bottom plate (1) is fixedly connected with a guide rail (4), the outer wall of the support plate (3) is fixedly connected with a limiting block (5), and the limiting block (5) is slidably connected on the inner side of the guide rail (4).

3. A rapid welding device based on the welding of the chassis of a locomotive according to claim 2, characterized in that: The inner side wall of the support frame (7) is fixedly connected with a sliding block (8), and the sliding block (8) is slidably connected on the inner side of the slide rail (6).

4. A rapid welding device based on the welding of the chassis of a locomotive according to claim 1, characterized in that:

5. The quick welding based on the welding of the locomotive underframe according to claim 1 The top portion of the support frame (7) is provided with a sliding hole (9), the bottom portion of the slide plate (10) is fixedly connected with a connecting block (11), and the connecting block (11) is slidably connected on the inner side of the sliding hole (9). Apparatus characterized in that: The telescopic mechanism comprises a connecting sleeve (16), the connecting sleeve (16) is fixedly connected on the outer wall of the fixed sleeve (15), the bottom end of the connecting sleeve (16) is slidably connected with a telescopic rod (17), and the bottom end of the telescopic rod (17) is connected with the top portion of the positioning plate (19). The inner top wall of the fixed sleeve (15) is fixedly connected with a spring (18), and the bottom end of the spring (18) is connected with the top portion of the telescopic rod (17).

6. A rapid welding device based on the welding of the chassis of a locomotive according to claim 1, characterized in that: ​ ​ 7. A rapid welding device based on the welding of the chassis of a locomotive according to claim 6, characterized in that: ​