Rapid switching device for top plate assembling and welding clamp

Abstract

A top plate assembling and welding clamp rapid switching device comprises a plurality of supports, supporting plates, rotating arm mechanisms and fixing mechanisms, the supporting plates comprise the first supporting plate and the second supporting plate, and the first supporting plate and the second supporting plate are rotationally connected with the supports through the rotating arm mechanisms; the first supporting plate and the second supporting plate can be vertically fixed to the support through fixing mechanisms respectively, a plurality of cushion blocks are fixedly arranged on the top of the first supporting plate and the top of the second supporting plate, and grooves used for avoiding weld joints are formed in the cushion blocks. The middle top plate assembling and welding device can be compatible with assembling and welding work of two different middle top plates at the same time, has high practicability, and improves working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of orbital vehicle roof panel assembly welding tooling, in particular to a rapid switching device for a roof panel assembly welding fixture. Background Technique

[0002] An aluminum alloy car body is one of the most important components in urban rail transit vehicles. It not only provides a riding and driving space for passengers and drivers, but also provides an installation base interface for interior decoration, electrical and other equipment and components. The aluminum alloy car body is mainly composed of large components such as a car body underframe, side walls, a roof, end walls, and a driver's cab. The roof is composed of a middle roof panel, side beams, and their welding accessories, and while bearing the load, it also provides an installation interface for interior trim parts and roof equipment.

[0003] The middle roof panel of urban rail transit vehicles often adopts an arc structure. The middle roof panel of the aluminum alloy car body is formed by welding several pieces of continuous arc-shaped aluminum profiles. The weld form is a long straight butt weld. Usually, the length of a single weld is about 21 meters. To control welding deformation and ensure its sealing performance, an automatic welding method is often used. However, there are significant differences in the roof curvature, width, and length of rail vehicles in different projects, and they cannot be produced on the same production line. When there is only 1 automatic welding device at the production site, but the roof panels of two projects need to be produced simultaneously, the conventional method is generally as follows: According to the respective structural characteristics of the roof panels in the two projects, make different specifications of middle roof panel forward and reverse welding assembly welding tooling, and then manually switch the tooling in real time according to the actual production project on site, and re-adjust the positioning reference, so as to achieve the purpose of simultaneously producing the middle roof panels of the two projects. However, this solution has a high tooling investment cost. When changing the tooling, manual disassembly and assembly are required, and a crane is used for auxiliary lifting, which is time-consuming and laborious, with a large manual input cost, and there are errors in manual adjustment, making it difficult to guarantee product quality.

[0004] To sum up, considering the convenience, safety, structural stability of the maintenance of the middle roof panel assembly welding tooling and the compatibility of the middle roof panel assembly welding in different projects, the utility model proposes a flexible tooling for aluminum alloy middle roof panel assembly welding to realize the rapid switching of the tooling during the production process of middle roof panels with different structures. Content of the Utility Model

[0005] The purpose of the utility model is to provide a rapid switching device for a roof panel assembly welding fixture, which can be compatible with the assembly welding work of different middle roof panels in two projects at the same time, has high practicability, and improves work efficiency.

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

[0007] A rapid switching device for a top plate assembly welding fixture, comprising a plurality of supports, a support plate, a rotating arm mechanism and a fixing mechanism. The support plate includes a first support plate and a second support plate. The first support plate and the second support plate are rotatably connected to the supports through the rotating arm mechanism. The first support plate and the second support plate can be vertically fixed on the supports through the fixing mechanism respectively. A plurality of pads are fixedly arranged on the tops of the first support plate and the second support plate, and grooves for avoiding weld seams are formed in the pads.

[0008] As a preferred technical solution, a plurality of through holes are formed in both the first support plate and the second support plate.

[0009] As a preferred technical solution, the rotating arm mechanism includes a plurality of first sleeves, a rotating shaft and a second sleeve. The first sleeves are horizontally fixed on the supports through mounting plates. Both ends of the rotating shaft are rotatably connected to the inner walls of the first sleeves. The second sleeve is fixedly arranged at the bottoms of the first support plate and the second support plate, and the second sleeve is sleeved on the rotating shaft.

[0010] As a preferred technical solution, the second sleeve is located between two first sleeves.

[0011] As a preferred technical solution, the fixing mechanism includes a positioning seat, a pin and a positioning plate. The positioning seat is fixed on the support through a mounting plate. The positioning plate is horizontally fixed at the bottoms of the first support plate and the second support plate. Pin holes are formed in both the positioning seat and the positioning plate. The pin passes through the pin hole in the positioning plate and inserts into the positioning seat to fix the first support plate and the second support plate.

[0012] As a preferred technical solution, limit blocks are vertically arranged on the pads at both ends of the first support plate and the second support plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the welding operation of the middle top plates of two projects can be compatible at the same time, which is suitable for the simultaneous production of two projects, is convenient to use, and improves the welding efficiency.

[0015] 2. In the utility model, both types of support plates are fixed on the tooling. When switching, there is no need to install and readjust the positioning reference, which saves time and effort, and does not require a crane for hoisting and replacement, thus releasing the crane resources. Description of the Drawings

[0016] The following further details the specific embodiments of the utility model in conjunction with the drawings:

[0017] Figure 1 It is a schematic structural diagram of the utility model;

[0018] Figure 2 Schematic diagram of the support structure of the present utility model

[0019] Figure 3 Schematic diagram of the first support plate structure of the present utility model

[0020] Among them, the reference numerals are as follows:

[0021] 1 - Support, 2 - Mounting plate, 3 - First sleeve, 4 - Rotating shaft, 5 - Positioning seat, 6 - Pin, 7 - First support plate, 8 - Second support plate, 9 - Spacer, 10 - Limiting block, 11 - Second sleeve, 12 - Positioning plate. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Therefore, the 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 claimed, but merely represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0024] In the description of the present application, it should be noted that if terms such as "center", "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is usually placed. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, it should also be noted that unless otherwise clearly defined and limited, if terms such as "set", "installed", "connected" are used, 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 directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0025] Example

[0026] like Figures 1-3 As shown, a quick switching device for a top plate welding fixture includes a plurality of supports 1, support plates, a rotating arm mechanism and a fixing mechanism. The support plates include a first support plate 7 and a second support plate 8. The first support plate 7 and the second support plate 8 are rotatably connected to the support 1 through the rotating arm mechanism. The first support plate 7 and the second support plate 8 can be vertically fixed on the support 1 through the fixing mechanism respectively. A plurality of pads 9 are fixed on the top of the first support plate 7 and the second support plate 8. The pads 9 are provided with grooves for avoiding welds.

[0027] It is worth mentioning that the support is achieved by the set support 1, and the arc-shaped plate to be welded is placed by the set first support plate 7 and the second support plate 8, and the top arcs of the first support plate 7 and the second support plate 8 are inconsistent, which are respectively suitable for the welding of the top plates in different rail vehicles. The first support plate 7 and the second support plate 8 are folded by the set arm mechanism, and the support plate to be used is fixed by the set fixing mechanism so that it is fixed in a vertical position without deflection, and the arc-shaped plate to be welded is placed by the set pad 9, and the groove on the pad 9 is used to avoid the weld between two adjacent arc-shaped plates.

[0028] In some feasible embodiments, a plurality of through holes are formed on the first support plate 7 and the second support plate 8 , so as to achieve the purpose of reducing the weight of the first support plate 7 and the second support plate 8 in terms of structure.

[0029] In some feasible embodiments, the rotating arm mechanism includes a plurality of first sleeves 3, a rotating shaft 4 and a second sleeve 11. The first sleeve 3 is transversely fixed on the support 1 through the mounting plate 2. Both ends of the rotating shaft 4 are rotatably connected to the inner wall of the first sleeve 3. The second sleeve 11 is fixedly arranged at the bottom of the first support plate 7 and the second support plate 8, and the second sleeve 11 can be sleeved on the rotating shaft 4. When the support plate is folded, force is applied to the support plate, and the rotation of the support plate drives the second sleeve 11 to rotate around the rotating shaft 4, thereby realizing the flipping of the support plate relative to the support 1.

[0030] In some feasible embodiments, the second sleeve 11 is located between the two first sleeves 3 , so that the two first sleeves 3 can limit the second sleeve 11 and prevent the second sleeve 11 from being separated from the rotating shaft 4 during rotation.

[0031] In some feasible embodiments, the fixing mechanism includes a positioning seat 5, a pin 6 and a positioning plate 12. The positioning seat 5 is fixed on the support 1 through a mounting plate 2. The positioning plate 12 is horizontally fixed at the bottoms of the first support plate 7 and the second support plate 8. Pin holes are formed in both the positioning seat 5 and the positioning plate 12. The pin 6 passes through the pin hole in the positioning plate 12 and inserts into the positioning seat 5 to fix the first support plate 7 and the second support plate 8. After the support plate to be used is folded to the vertical state, the positioning plate 12 at the bottom of the support plate rotates to the top of the positioning seat 5, and the pin holes of the positioning plate 12 and the positioning seat 5 overlap. At this time, the pin 6 is inserted to fix the support plate in the working state, so that it always remains in the vertical state.

[0032] When it is necessary to switch the support plate for another project, first take out the pin 6, fold down the support plate used for the original project, then fold the support plate for the other project to the vertical, and fix it with the pin 6.

[0033] In some feasible embodiments, limit blocks 10 are vertically provided on the cushion blocks 9 at both ends of the first support plate 7 and the second support plate 8 to limit and fix the arc-shaped plate member placed on the support plate, so as to prevent the arc-shaped plate member from slipping during the welding process.

[0034] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only includes an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details well known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here according to the above description. The scope of the present disclosure is defined by the appended claims.

Claims

1. A rapid switching device for a top plate assembly welding fixture, characterized in that, It includes several supports (1), a support plate, a swing arm mechanism and a fixing mechanism. The support plate includes a first support plate (7) and a second support plate (8). The first support plate (7) and the second support plate (8) are rotatably connected to the support (1) through the swing arm mechanism. The first support plate (7) and the second support plate (8) can be vertically fixed to the support (1) respectively through the fixing mechanism. A number of cushion blocks (9) are fixedly arranged on the tops of the first support plate (7) and the second support plate (8), and grooves for avoiding weld seams are formed in the cushion blocks (9).

2. The rapid switching device for the top plate assembly welding fixture according to claim 1, wherein, A number of through holes are formed in both the first support plate (7) and the second support plate (8).

3. The quick-switching device for the top plate assembly welding fixture according to claim 1, wherein The swing arm mechanism includes a number of first sleeves (3), a rotating shaft (4) and a second sleeve (11). The first sleeves (3) are horizontally fixed to the support (1) through mounting plates (2). Both ends of the rotating shaft (4) are rotatably connected to the inner walls of the first sleeves (3). The second sleeve (11) is fixedly arranged at the bottoms of the first support plate (7) and the second support plate (8), and the second sleeve (11) is sleeved on the rotating shaft (4).

4. The quick-switching device for the top plate assembly welding fixture according to claim 3, characterized in that, The second sleeve (11) is located between two first sleeves (3).

5. The rapid switching device for the top plate assembly welding fixture according to claim 1, characterized in that, The fixing mechanism includes a positioning seat (5), a pin (6) and a positioning plate (12). The positioning seat (5) is fixed to the support (1) through a mounting plate (2). The positioning plate (12) is horizontally fixed to the bottoms of the first support plate (7) and the second support plate (8). Pin holes are formed in both the positioning seat (5) and the positioning plate (12). The pin (6) passes through the pin hole in the positioning plate (12) and is inserted into the positioning seat (5) to fix the first support plate (7) and the second support plate (8).

6. The quick-switching device for the top plate assembly welding fixture according to claim 1, wherein, Limit blocks (10) are vertically arranged on the cushion blocks (9) at both ends of the first support plate (7) and the second support plate (8).

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