Welding tool for chassis of railway vehicle

Abstract

A railway vehicle chassis welding tool comprises a supporting plate, a sliding rail and a supporting device. The supporting plate is mounted on the chassis forward mounting tool foundation beam and is used for supporting the sliding rail; the sliding rail is embedded into the top of the supporting plate and provides a sliding function for the railway vehicle; and the supporting device is installed on the supporting plate, a sliding block matched with the sliding rail is arranged at the bottom of the supporting device, the sliding block slides on the sliding rail to drive the supporting device to slide, and the supporting device is connected with a rail vehicle and further pulls the rail vehicle to slide left and right. The chassis welding tool solves the problems that the chassis welding tool is low in replacement efficiency and occupies crown block resources, can be compatible with the lengths and sizes of chassis coupler seats of different vehicle types, and improves economical efficiency, practicability, operability and maintainability.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicle underframe welding tooling, in particular to a rail vehicle underframe welding tooling. Background Art

[0002] The car body is one of the most important components of vehicles in urban rail transit. It not only provides passengers and drivers with riding and driving space, but also provides a basic interface for the installation of interior, electrical and other equipment and components. The conventional car body is mainly composed of large components such as the chassis, side walls, roof, end walls, and driver's cab. The chassis is the main load-bearing structure, bearing most of the weight of the upper car body and the load, and is connected to the lower bogie running gear through the bolster, and is connected to other marshaling vehicles through the traction beam, that is, the coupling installation surface is perpendicular to the longitudinal direction of the chassis, and the chassis is connected to the coupler through the traction beam to transmit traction and braking force.

[0003] Conventional train formations can generally be divided into 4-car formations, 6-car formations, 8-car formations, etc. Each formation can be divided into two different types of vehicles: the head car and the middle car. In terms of the chassis structure, the head car chassis traction beam is more complex than the middle car traction beam, with a larger overall volume, and a longer distance between the hook mounting surface and the center of the bolster. In addition, each car needs to distinguish between the first end and the second end orientation. Different orientations mean that the installation position of the chassis traction beam is also different. At present, there are generally two conventional practices for chassis welding tooling: 1. Separately make multiple sets of chassis welding assembly tooling to produce chassis of different models and orientations; 2. Make compatible tooling for the head car and the middle car. When different models are produced, manually adjust the tooling and change the tooling positioning reference to meet the needs of different models and orientations. Among them, the first method has high tooling investment cost and occupies a large area. The second method has lower tooling investment than the first method, but manual disassembly and assembly and overhead crane auxiliary lifting are required when the tooling is changed, which is time-consuming and labor-intensive, and manual adjustment has errors and is prone to errors.

[0004] The two existing methods have shortcomings from the perspectives of cost, efficiency, and quality risk. Therefore, considering the multiple requirements of chassis welding tooling such as ease of maintenance, safety, structural stability, and compatibility with different vehicle models, the utility model proposes a railway vehicle chassis welding tooling. Utility Model Content

[0005] The utility model aims to provide a rail vehicle underframe welding tool, which solves the problem of low replacement efficiency of underframe welding tool and occupation of overhead crane resources, and is compatible with the length dimensions of underframe coupler seats of different vehicle models, thereby improving economy, practicality, operability and maintainability.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A rail vehicle underframe welding tool comprises a support plate, a slide rail and a support device.

[0008] As a preferred technical solution, a support plate is installed on the base beam of the underframe upright tooling to provide support for the slide rail, and the rail vehicle is connected to the tooling base beam through the support plate;

[0009] The slide rail is embedded on the top of the support plate to provide a sliding function for the rail vehicle;

[0010] The supporting device is installed on the supporting plate. A sliding block matching the sliding rail is provided at the bottom of the supporting device. The sliding block slides on the sliding rail to drive the supporting device to slide, thereby pulling the rail vehicle to slide left and right.

[0011] As a preferred technical solution, the support plate is provided with a plurality of elliptical holes along the center line.

[0012] As a preferred technical solution, baffles are provided on both ends of the slide rail on the support plate.

[0013] As a preferred technical solution, the supporting device includes two square tubes, which are composed of two horizontal sections of different heights and an inclined section connected between the two horizontal sections. The lower ends of the two square tubes are connected as a whole through a fixing plate.

[0014] As a preferred technical solution, a mounting plate is provided along the cross section of the lower end of the square tube for connecting with the traction beam positioning core plate.

[0015] As a preferred technical solution, bottom plates are provided on the left and right sides of the bottom of the higher end of the square tube, a connecting plate is fixedly provided at the bottom of the bottom plate, and the bottom of the connecting plate is fixedly connected to the slider.

[0016] As a preferred technical solution, the end faces of the higher ends of the two square tubes of the supporting device are provided with blocking plates having a cross section equal to that of the square tubes.

[0017] As a preferred technical solution, rib plates are provided at both ends of the bottom plate, and the tops of the rib plates are flush with the square tubes.

[0018] As a preferred technical solution, a positioning block is provided at one end of the support plate.

[0019] As an optimal technical solution, locking blocks are provided at both ends of the support plate perpendicular to the slide rails. The locking blocks are U-shaped structures, the bottom of the locking blocks are fixedly connected to the tooling base beam, and the side walls of the locking blocks are fastened to the support plates by bolts.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. In the utility model, the chassis welding tooling of different models can be used to quickly adjust the installation size of the coupler seat, and the positioning reference can be set arbitrarily within the sliding range to meet various size requirements, saving time and effort, and no longer requiring overhead crane lifting and replacement, freeing up resources occupied by the overhead crane.

[0022] 2. In the utility model, the device is universal and can meet the needs of different vehicle models, thus reducing investment costs.

[0023] 3. In the utility model, the welding tool does not need to be adjusted manually, the device maintenance is simple, and the practicality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 This is the front view of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the support device of the utility model;

[0028] Figure 4 This is a rear view of the support device of the utility model;

[0029] The reference numerals are as follows:

[0030] Support plate 1, slide rail 2, support device 3, locking block 4, baffle 5, positioning block 6, elliptical hole 7, mounting plate 8, fixing plate 9, bottom plate 10, rib plate 11, blocking plate 12, connecting plate 13, and sliding block 14. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0033] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the product of the application is usually placed when in use. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, if the terms "set", "install", and "connect" appear, they should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] Example

[0035] like Figure 1-4 As shown, a rail vehicle underframe welding tool comprises a support plate 1, a slide rail 2 and a support device 3. The support plate 1 is a square plate structure. The slide rail 2 is embedded in the top of the support plate 1, and the top of the slide rail 2 is flush with the upper surface of the support plate 1. Baffles 5 are provided on the support plate 1 at both ends of the slide rail 2. The support device 3 comprises two square tubes. The square tube consists of two horizontal sections of different heights and an inclined section connected between the horizontal sections. A mounting plate 8 is provided at the end of the lower horizontal section of the square tube along the cross section. Bottom plates 10 are provided on the left and right sides of the bottom of the higher horizontal section of the square tube. A connecting plate 13 is fixedly provided at the bottom of the bottom plate 10, and a slider 14 matching the slide rail 2 is provided on the connecting plate 13.

[0036] It is worth noting that the support plate 1 is provided to provide an installation position for the slide rail 2, and the support plate 1 is connected to the base beam of the chassis installation tooling; the slide rail 2 is provided to realize the left and right sliding of the support device 3, and the support device 3 is connected to the traction beam of the rail vehicle, driving the rail vehicle to slide along the slide rail 2, and the baffle 5 is provided to limit the sliding of the support device 3 to prevent slipping, and the installation plate 8 is provided to connect the traction beam positioning core plate, and the sliding between the support device 3 and the slide rail 2 is provided. Since the rail vehicle is connected to the support device 3, the rail vehicle follows the support device 3 to move along the slide rail, so that the rail vehicle moves relative to the base beam of the chassis installation tooling.

[0037] In some feasible embodiments, the support plate 1 is provided with a plurality of elliptical holes 7 along the center line, which reserves installation space for the positioning device and achieves the purpose of weight reduction.

[0038] In some feasible embodiments, a positioning block 6 is provided at one end of the support plate 1, and the positioning block 6 plays a positioning role when the support plate 1 is installed on the base beam of the chassis installation tooling. The installation position of the positioning block 6 on the support plate 1 needs to be measured in advance according to the actual situation, and the installation position of the positioning block 6 on the base beam of the chassis installation tooling also needs to be measured and slotted in advance. When installing, the positioning block 6 is first fixed to the support plate 1 by bolts, and then the support plate 1 is placed on the base beam of the chassis installation tooling so that the positioning block 6 can be placed in the groove opened in advance, and finally the positioning block 6 is welded to the base beam of the chassis installation tooling. The positioning block also has a limiting function, which can prevent the support plate 1 from moving.

[0039] In some feasible embodiments, a locking block 4 is provided on the side of the support plate 1 parallel to the slide rail and perpendicular to the slide rail 2 to lock the support plate 1. The locking block 4 is a U-shaped structure, and its bottom is fixedly connected to the base beam of the chassis upright tooling by bolts, and its side walls are locked to the two side surfaces of the slide rail 2 by bolts to prevent the support plate 1 from moving.

[0040] In some feasible embodiments, the lower horizontal sections of the two square tubes of the supporting device 3 are provided with fixing plates 9, and the bottoms of both ends of the fixing plates 9 are fixedly connected to the lower horizontal sections of the two square tubes respectively, and the fixing plates 9 are used to connect the two square tubes into one.

[0041] In some feasible embodiments, ribs 11 are provided at both ends of the bottom plate 10 , and the tops of the ribs 11 are flush with the square tubes, thereby increasing the rigid structural stress points of the support plate 1 to provide reinforcement.

[0042] In some feasible embodiments, the end faces of the higher horizontal sections of the two square tubes of the supporting device 3 are provided with blocking plates 12 having a cross section equal to that of the square tubes, for sealing the hollow square tubes.

[0043] When in use, two of the devices are needed to be used in combination. The mounting plates 8 of the two devices are respectively connected to the left and right sides of the traction beam positioning core plate, and the two supporting devices 3 are connected as a whole to drive the rail vehicle to slide along the slide rail 2. When the rail vehicle needs to be moved, it needs to be pushed manually. After being pushed to the appropriate position, the supporting structure is firmly clamped on the foundation beam by bolts for fixation, so that the position of the rail vehicle relative to the foundation beam is fixed.

[0044] In addition, it should be understood that although this specification is described in accordance with the implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art. So far, each embodiment of the present disclosure has been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed here. The scope of the present disclosure is defined by the attached claims.

Claims

1. A rail vehicle underframe welding tool, characterized in that: It comprises a support plate (1), a slide rail (2) and a support device (3); A support plate (1) is mounted on a base beam of a chassis upright tooling to provide support for a slide rail (2); A slide rail (2) is embedded and installed on the top of the support plate (1) to provide a sliding function for the rail vehicle; The support device (3) is mounted on the support plate (1). A slider (14) matching the slide rail (2) is provided at the bottom of the support device (3). The slider (14) slides on the slide rail (2) to drive the support device (3) to slide. The support device (3) is connected to a rail vehicle, thereby pulling the rail vehicle to slide left and right.

2. A rail vehicle underframe welding tool according to claim 1, characterized in that: The support plate (1) is provided with a plurality of elliptical holes (7) along the midline.

3. A rail vehicle underframe welding tool according to claim 1, characterized in that: Baffles (5) are provided on the support plate (1) at both ends of the slide rail (2).

4. A rail vehicle underframe welding tool according to claim 1, characterized in that: The supporting device (3) comprises two square tubes, each of which is composed of two horizontal sections of different heights and an inclined section connected between the two horizontal sections. The lower ends of the two square tubes are connected as a whole via a fixing plate (9).

5. A rail vehicle underframe welding tool according to claim 4, characterized in that: A mounting plate (8) is provided along the cross section of the lower end of the square tube for connecting with the traction beam positioning core plate.

6. A rail vehicle underframe welding tool according to claim 5, characterized in that: Bottom plates (10) are provided on the left and right sides of the bottom of the higher end of the square tube, and a connecting plate (13) is fixedly provided on the bottom plate (10), and the bottom of the connecting plate (13) is fixedly connected to a sliding block (14).

7. A rail vehicle underframe welding tool according to claim 4, characterized in that: The end faces of the higher ends of the two square tubes of the support device (3) are provided with blocking plates (12) having a cross section equal to that of the square tubes.

8. A rail vehicle underframe welding tool according to claim 6, characterized in that: Rib plates (11) are provided at both ends of the bottom plate (10), and the top of the rib plate (11) is flush with the square tube.

9. A rail vehicle underframe welding tool according to claim 1, characterized in that: A positioning block (6) is provided at one end of the support plate (1).

10. A rail vehicle underframe welding tool according to claim 1, characterized in that: The support plate (1) is provided with a locking block (4), the locking block (4) is a U-shaped structure, the bottom of the locking block (4) is fixedly connected to the tooling foundation beam, and the side wall of the locking block (4) is fastened to the support plate (1) by bolts.

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