Welding tool for headstock framework and skin

By designing welding fixtures for the car head frame and skin, and using a base frame, front clamping assembly, and side clamping assembly to provide multi-point support and clamping for the urban rail car head frame, the problem of insufficient fixation of existing fixtures was solved, achieving high-precision and high-stability welding results and improving the overall process level of urban rail vehicle manufacturing.

CN223718660UActive Publication Date: 2025-12-26CHANGCHUN TIANRUI MECHANICAL
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Patent Information

Application Number
CN202423280198.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-26
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

The existing tooling is insufficient for fixing the urban rail vehicle head frame during welding, resulting in an unstable welding process and affecting the welding effect.

Method used

A welding fixture for the front frame and skin of a vehicle has been designed, including a base frame, a front clamping assembly, a side clamping assembly, and a support assembly. These components provide multi-point support and clamping fixation for the front frame, ensuring the stability of the welding process.

Benefits of technology

This improved the stability and precision of welding, meeting the requirements for high-efficiency and high-quality welding, and enhancing the overall technological level of urban rail vehicle manufacturing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a headstock framework and skin welding tool which comprises a bottom frame, a front clamping assembly, a side face clamping assembly and a supporting assembly, the bottom frame is used for bearing a headstock framework and conducting welding work of the headstock framework and skin in a matched mode, and the front clamping assembly is arranged above the bottom frame and used for clamping and fixing the front end of the headstock framework; the side face clamping assembly is arranged above the bottom frame and used for clamping and fixing the side face of the vehicle head framework. The supporting assembly is arranged above the bottom frame, matched with the vehicle head framework and used for conducting auxiliary supporting on multiple parts of the vehicle head framework. The welding tool is suitable for welding machining, can meet the requirements for high precision, high stability, high efficiency and quality consistency in the welding process of the aluminum alloy headstock and the framework of the urban vehicle, achieves accurate assembly and reliable welding of the headstock and the framework, and improves the overall technological level and the product quality of urban vehicle manufacturing.
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Description

TECHNICAL FIELD

[0001] The utility model relates to city rail car welding technical field, especially a kind of welding tool of car head skeleton and skin. BACKGROUND

[0002] City rail car is an important component in city public transport system, refers to the public transport tool running along specific rail in city;

[0003] And car head skeleton and skin welding tool is a tool used when the car head skeleton of city rail car and the outer skin of car head are welded, since there are many welding parts and wide welding range when skin welding operation, the stability of car head skeleton is crucial for welding, however, the existing tool is insufficient for the fixation of city rail car car head skeleton during welding, and it is easy to cause unstable stress at each position of car head, affect the stability during welding, thus easily leading to the decline of welding effect. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the defects of insufficient fixation of city rail car car head skeleton during welding of existing tool, and it is easy to cause unstable stress at each position of car head, affect the stability during welding, thus easily leading to the decline of welding effect, provide a kind of car head skeleton and skin welding tool, the tool can meet the requirements of high precision, high stability, high efficiency and quality consistency during the welding of city car aluminum alloy car head and skeleton, realize the accurate assembly and reliable welding of car head and skeleton, improve the overall process level and product quality of city car manufacturing.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] The utility model discloses a kind of car head skeleton and skin welding tool, including chassis, chassis is used to carry car head skeleton, cooperate and carry out the welding work of car head skeleton and skin;

[0007] Front clamping assembly, it is set to the top of the chassis, for clamping and fixing the front end of car head skeleton;

[0008] Side clamping assembly, it is set to the top of the chassis, for clamping and fixing the side of car head skeleton;

[0009] Supporting assembly, it is set to the top of the chassis, with car head skeleton adaptation, for the multiple parts of car head skeleton are assisted to support;

[0010] The front clamping assembly comprises a front clamping plate and a guide rail assembly, the front clamping plate is movably assembled on the chassis through the guide rail assembly, and the front clamping plate can move along the length direction of the chassis. When the device is used, the vehicle head frame is first moved to be arranged above the chassis, a plurality of stress positions of the vehicle head frame are supported and fixed through the support assembly, so that the stability of the vehicle head frame during welding processing is improved, and then the front part and the side part of the vehicle head frame are clamped and fixed through the front clamping assembly and the side clamping assembly respectively, so that the whole vehicle head frame is fixed. In summary, in the actual application, the support assembly matched with the vehicle head frame is used to support and fix a plurality of stress positions of the vehicle head frame, so that the stability of the vehicle head frame is high, the stress dispersion effect is good, and the subsequent welding operation is facilitated. Then, the front part and the side part of the vehicle head frame are clamped and fixed through the front clamping assembly and the side clamping assembly respectively, so that the overall stability of the whole vehicle head frame is further ensured, so that the welding operation is more stable, and the welding effect is better.

[0011] Preferably, the front clamping assembly further comprises a flat plate, the flat plate is welded and fixed on the chassis through an I-shaped steel, a stand is arranged above the flat plate, the front clamping plate is fixedly installed on the stand through a support plate, and the guide rail assembly comprises:

[0012] A front guide rail is fixedly installed above the flat plate;

[0013] A front sliding table is fixedly installed below the stand and is in sliding connection with the front guide rail. In this way, when the front sliding table slides on the front guide rail, the stand drives the front clamping plate to synchronously slide through the support plate, so that the front end of the vehicle head frame is clamped and fixed.

[0014] Preferably, the stand, the front sliding table and the front guide rail are all arranged in two, the two stands are respectively installed on the two front sliding tables, the two front guide rails are mutually symmetrical about the vertical center line of the flat plate, and the two stands are fixedly connected into one through the support plate, so that the stability of the front clamping plate during movement is higher.

[0015] Preferably, the side clamping assembly comprises a side clamping assembly one, a side clamping assembly two and a side clamping assembly three, wherein the side clamping assembly one, the side clamping assembly two and the side clamping assembly three are all installed above the chassis and are respectively located at two side positions of the vehicle head frame.

[0016] Preferably, the side clamping assembly one comprises:

[0017] A stand is fixedly installed at an upper edge position of the chassis, and a side sliding table is fixedly installed on one side of the stand;

[0018] The assembly plate is fixedly installed with a side clamping plate for fixing the vehicle head frame at one end, and is fixedly installed with a side guide rail matched with the side sliding table at one side, wherein the side sliding table is clamped on the side guide rail, so that when the side sliding table slides relative to the side guide rail, the side clamping plate moves along to realize clamping and loosening of the vehicle head frame, and it should be noted that the overall structure of the side clamping assembly two and the side clamping assembly three is similar to that of the side clamping assembly one, and a guide rail structure is adopted for control, so that the side clamping assembly one, the side clamping assembly two and the side clamping assembly three cooperate to clamp the vehicle head frame from the side.

[0019] As preferred, the support assembly comprises a front side support frame, a bottom support frame, a rear side support frame, an upper side support frame and a waist support frame, wherein the front side support frame, the bottom support frame, the rear side support frame, the upper side support frame and the waist support frame are respectively arranged below the front side, at the bottom, below the rear side, above the upper side and at the waist position of the vehicle head frame to realize overall support of the vehicle head frame.

[0020] As preferred, the front window position above the chassis of the vehicle head frame is also provided with a front window positioning component, wherein the front window positioning component adopts a ring structure matched with the front window of the vehicle head frame, so that after the vehicle head frame is installed, the front window positioning component is matched on the front window structure of the vehicle head frame to facilitate welding of the front window of the vehicle head frame.

[0021] As preferred, a walkway is installed outside the chassis to provide a moving channel for workers.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In actual application, the tool can support and fix multiple stress positions of the vehicle head frame through the support assembly matched with the vehicle head frame, so that the stability of the vehicle head frame is higher, the stress dispersion effect is better, and the subsequent welding operation is facilitated, and the front part and the side of the vehicle head frame are clamped and fixed through the front clamping assembly 3 and the side clamping assembly respectively, so that the overall stability of the entire vehicle head frame is further ensured, so that the welding operation is more stable, the welding effect is better, and in summary, the tool can meet the requirements of high precision, high stability, high efficiency and consistent quality in the welding process of the aluminum alloy vehicle head and frame of the city vehicle, realize precise assembly and reliable welding of the vehicle head and frame, and improve the overall process level and product quality of the city vehicle manufacturing. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2It is a side view of the utility model;

[0026] Figure 3 It is a left view of the utility model;

[0027] Figure 4 It is a schematic view of a front clamping assembly structure in the utility model;

[0028] Figure 5 It is a schematic view of a side clamping assembly one structure in the utility model;

[0029] Figure 6 It is a plan view of the utility model.

[0030] Fig. 1, walkway; 2, underframe; 3, front clamping assembly; 300, support plate; 301, front clamping plate; 302, stand column; 303, front sliding table; 304, front guide rail; 305, I-beam; 306, flat plate; 4, side clamping assembly one; 400, side clamping plate; 401, assembly plate; 402, stand; 403, side sliding table; 404, side guide rail; 5, side clamping assembly two; 6, side clamping assembly three; 7, upper clamping assembly; 8, front side support frame; 9, bottom support frame; 10, rear side support frame; 11, upper side support frame; 12, waist support frame; 13, front window positioning assembly. DETAILED DESCRIPTION

[0031] The utility model discloses a kind of car head skeleton and skin welding tool, which is described in detail as follows. Figures 1-6 Further, the embodiment of the utility model discloses a car head skeleton and skin welding tool, which overcomes the defects of the prior art that the tool is not fixed enough to the car head skeleton of the city rail car during welding, and the stress of each position of the car head is unstable, which affects the stability during welding, and thus the welding effect is easily reduced.The tool can meet the requirements of high precision, high stability, high efficiency and quality consistency during welding of the city car aluminum alloy car head and skeleton, realize accurate assembly and reliable welding of the car head and skeleton, and improve the overall process level and product quality of city car manufacturing.The utility model discloses a car head skeleton and skin welding tool is not limited to the description of the following examples.

[0032] Example 1:

[0033] The embodiment provides a car head skeleton and skin welding tool, as shown in Figures 1-6As shown, including the chassis 2, front clamping assembly 3, side clamping assembly and support assembly, chassis 2 for carrying the head skeleton, cooperation head skeleton and skin welding work, front clamping assembly 3 is arranged above the chassis 2, for clamping the front end of the head skeleton fixed; side clamping assembly is arranged above the chassis 2, for clamping the side of the head skeleton fixed; support assembly is arranged above the chassis 2, with the head skeleton fitting, for the auxiliary support of the head skeleton in multiple parts; wherein, the front clamping assembly 3 includes front clamping plate 301 and guide rail assembly, through the guide rail assembly, the front clamping plate 301 is movably assembled on the chassis 2, so that the front clamping plate 301 can move along the length direction of the chassis 2, the device in use, first, the head skeleton is moved and arranged above the chassis 2, the support assembly is supported and fixed on the multiple stress parts of the head skeleton, which can improve the stability of the head skeleton during welding processing, and then the front clamping assembly 3 and the side clamping assembly are respectively clamped and fixed on the front and side of the head skeleton, so as to achieve the effect of fixing the whole head skeleton.

[0034] In summary, the tool in actual application, through the support assembly matched with the head skeleton, can support and fix the multiple stress parts of the head skeleton, so that the stability of the head skeleton is higher, the stress dispersion effect is better, which is beneficial to the subsequent welding operation, and then the front clamping assembly 3 and the side clamping assembly are respectively clamped and fixed on the front and side of the head skeleton, so as to further ensure the overall stability of the whole head skeleton, so that the welding operation is more stable and the welding effect is better.

[0035] Example 2:

[0036] This embodiment gives a kind of head skeleton and skin welding tool, as shown in Figure 4 In order to realize the clamping and fixing of the front end of the head skeleton by the front clamping assembly 3, in this embodiment, the front clamping assembly 3 further includes flat plate 306, which is welded and fixed on the chassis 2 by I-beam 305, and the upper portion of flat plate 306 is provided with stand column 302, and the front clamping plate 301 is fixedly installed on the stand column 302 by support plate 300, and the guide rail assembly includes front guide rail 304 and front sliding table 303, wherein, the front guide rail 304 is fixedly installed above the flat plate 306, and the front sliding table 303 is fixedly installed below the stand column 302 and is slidably connected with the front guide rail 304, so that when the front sliding table 303 slides on the front guide rail 304, the stand column 302 drives the front clamping plate 301 to slide synchronously through the support plate 300, so as to realize the clamping and fixing of the front end of the head skeleton.

[0037] Specifically, as shown in Figure 4As shown, in order to ensure the stability of the front clamping plate 301 during movement, in this embodiment, two columns 302, two front slides 303, and two front guide rails 304 are provided. The two columns 302 are respectively installed on the two front slides 303, and the two front guide rails 304 are symmetrical about the vertical center line of the plate 306. The two columns 302 are fixedly connected as one unit by the support plate 300, thereby making the front clamping plate 301 more stable during movement.

[0038] Specifically, such as Figures 1-3 and Figure 5 As shown, in order to achieve clamping and fixing of the side of the vehicle front frame, in this embodiment, the side clamping assembly includes side clamping component 1 4, side clamping component 2 5, and side clamping component 3 6. Side clamping component 1 4, side clamping component 2 5, and side clamping component 3 6 are all installed above the base frame 2 and are located on both sides of the vehicle front frame respectively.

[0039] Specifically, such as Figure 5 As shown, in order to achieve clamping and fixing of the side of the front frame, in this embodiment, the side clamping assembly 4 includes a stand 402 and a mounting plate 401. The stand 402 is fixedly installed at the upper edge of the base frame 2. A side slide 403 is fixedly installed on one side of the stand 402. A side clamping plate 400 for fixing the front frame is fixedly installed at one end of the mounting plate 401. A side guide rail 404 adapted to the side slide 403 is fixedly installed on one side of the mounting plate 401. The side slide 403 engages with the side guide rail 404. Therefore, when the side slide 403 slides relative to the side guide rail 404, the side clamping plate 400 moves accordingly, thereby achieving clamping and loosening of the front frame; specifically, as shown... Figure 1 As shown, in order to further improve the welding stability of the front frame, in this embodiment, an upper clamping component 7 is also provided above the base frame 2 to fix the top of the front frame. It should be noted that the overall structure of the upper clamping component 7, the side clamping component 2 5, and the side clamping component 3 6 is similar to that of the side clamping component 1 4. They all adopt a guide rail structure for control, so that the upper clamping component 7, the side clamping component 1 4, the side clamping component 2 5, and the side clamping component 3 6 cooperate to clamp the front frame from the top and sides.

[0040] Specifically, such as Figures 1-3 As shown, in order to support the front frame of the vehicle, in this embodiment, the support components include a front support frame 8, a bottom support frame 9, a rear support frame 10, an upper support frame 11, and a waist support frame 12. The front support frame 8, the bottom support frame 9, the rear support frame 10, the upper support frame 11, and the waist support frame 12 are respectively located at the lower front, bottom, lower rear, upper, and waist positions of the front frame, thereby achieving all-round support for the front frame of the vehicle.

[0041] Specifically, as shown in Figures 1-3 In order to facilitate the welding of the front end of the head frame, in the embodiment, a front window positioning component 13 is arranged on the bottom frame 2 above the front window position of the head frame, wherein the front window positioning component 13 adopts a ring structure matched with the front window of the head frame, so that the front window positioning component 13 is matched on the front window structure of the head frame after the head frame is installed, facilitating the welding of the front window of the head frame and making the welding more efficient.

[0042] Specifically, as shown in Figures 1-3 In order to facilitate the operation of the staff, in the embodiment, a walkway 1 is arranged outside the bottom frame 2, which is used to provide a moving channel for the staff.

[0043] The basic principle and main features of the present application and the advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A head skeleton and skin welding tool, characterized by: The utility model relates to a kind of vehicle head skeleton welding device, including: Chassis (2) for carrying vehicle head skeleton, cooperation is carried out the welding work of vehicle head skeleton and skin; Front clamping assembly (3) is arranged above the chassis (2), for the front end of vehicle head skeleton is clamped and fixed; Side clamping assembly is arranged above the chassis (2), for the side of vehicle head skeleton is clamped and fixed; Supporting assembly is arranged above the chassis (2), with vehicle head skeleton adaptation, for the multiple parts of vehicle head skeleton is assisted support; Wherein, the front clamping assembly (3) includes front clamping plate (301) and guide rail assembly, the front clamping plate (301) is movably assembled on the chassis (2) by the guide rail assembly, so that the front clamping plate (301) can move along the length direction of the chassis (2).

2. The welding tooling for welding the front frame and the skin of the vehicle head according to claim 1, characterized in that: The front clamping assembly (3) further includes flat plate (306), the flat plate (306) is welded and fixed on the chassis (2) by I-beam (305), the flat plate (306) is equipped with stand column (302) above, the front clamping plate (301) is fixedly installed on the stand column (302) by support plate (300), the guide rail assembly includes: Front guide rail (304) is fixedly installed above the flat plate (306); Front sliding table (303) is fixedly installed below the stand column (302), and is slidably connected with the front guide rail (304).

3. The welding tooling for a vehicle head skeleton and skin according to claim 2, characterized in that: The stand column (302), front sliding table (303) and front guide rail (304) are all arranged as two, two the stand column (302) is installed on two the front sliding table (303), two the front guide rail (304) is mutually symmetrical about the vertical center line of the flat plate (306), two the stand column (302) is fixedly connected as a whole by support plate (300).

4. The head frame and skin welding tooling of claim 1, wherein: The side clamping assembly includes side clamping assembly one (4), side clamping assembly two (5), side clamping assembly three (6), wherein, the side clamping assembly one (4), side clamping assembly two (5), side clamping assembly three (6) are installed above the chassis (2), and are respectively located at both sides of the vehicle head skeleton position.

5. The vehicle head skeleton and skin welding tooling of claim 4, wherein: The side clamping assembly one (4) includes: Stand (402) is fixedly installed above the upper edge position of the chassis (2), one side of the stand (402) is fixedly installed with side sliding table (403); Assembly plate (401) one end is fixedly installed with side clamping plate (400) for the fixed vehicle head skeleton, one side of the assembly plate (401) is fixedly installed with side guide rail (404) adapted with the side sliding table (403), wherein, the side sliding table (403) is clamped on the side guide rail (404).

6. The vehicle head skeleton and skin welding tooling of claim 1, wherein: The support assembly comprises a front side support frame (8), a bottom support frame (9), a rear side support frame (10), an upper side support frame (11) and a waist support frame (12), wherein the front side support frame (8), the bottom support frame (9), the rear side support frame (10), the upper side support frame (11) and the waist support frame (12) are respectively arranged below the front side, at the bottom, below the rear side, above the upper side and at the waist position of the vehicle head skeleton.

7. The vehicle head skeleton and skin welding tooling of claim 1, wherein: A front window positioning component (13) is further arranged above the chassis (2) at the front window position of the vehicle head skeleton, wherein the front window positioning component (13) adopts a ring structure matched with the front window of the vehicle head skeleton.