A vehicle body aluminum profile floor lifting and flipping device

Abstract

The utility model discloses a vehicle body aluminum profile floor lifting and flipping device, comprising two lower cross beams located at the bottom; and two upper cross beams connected to the upper parts of the lower cross beams; the lower cross beams and the upper cross beams are connected by a rotating rod, and the rotating rod is rotatably connected to the lower cross beams, and the rotating rod is fixedly connected to the upper cross beams; the space between the lower cross beams and the upper cross beams is the accommodating space of the floor; the device has a plurality of connecting rods connected to external slings. The device of the utility model has high rigidity, so that the force distribution during the lifting and flipping process is uniform, avoiding direct contact between the floor and the sling, reducing the influence of the separation FL, and reasonably reducing weight. The device achieves the design objectives of saving space, improving efficiency, ensuring quality, reducing the reinvestment of large tooling, and saving a lot of money.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing aluminum profile floors of electric train sets, in particular to a lifting and turning device for aluminum profile floors of train bodies. Background Art

[0002] The floor of the CR450 EMU test vehicle is welded by stir friction welding. Each floor is pre-assembled by plug-in connection of multiple floor profiles. The process is upright welding-hoisting-flipping-reverse welding. After upright welding, when hoisting and flipping, the floor will produce a large deformation along the width direction and sink inward. If the deformation is too large, it will directly cause the unwelded plug-in interface of the reverse installation to expand, and the welded welded seam of the upright installation will be deformed by force, affecting the quality of the weld and causing irreversible loss. Only using slings cannot lift the floor installation off the platform for lifting and flipping. Using the current lifting tooling, the deformation is still very serious, especially in the area where the slings are used, and there is still a great risk.

[0003] Therefore, based on the above technical problems, technicians in this field urgently need to develop a vehicle body aluminum profile floor lifting and flipping device. Utility Model Content

[0004] The utility model aims to provide a vehicle body aluminum profile floor lifting and flipping device, which has high rigidity, makes the force distribution during lifting and flipping uniform, avoids direct contact between the floor and the sling, reduces the influence of separation FL, and reasonably reduces weight.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model discloses a vehicle body aluminum profile floor lifting and flipping device, which comprises:

[0007] Two lower cross beams at the bottom; and

[0008] Two upper cross beams connected to the upper part of the lower cross beam;

[0009] The lower crossbeam and the upper crossbeam are connected via a rotating rod, and the rotating rod is rotatably connected to the lower crossbeam, and the rotating rod is fixedly connected to the upper crossbeam;

[0010] The space between the lower cross beam and the upper cross beam is a floor accommodating space;

[0011] The device has a plurality of connecting rods connected to the external harness.

[0012] Furthermore, the rotating rod is rotatably connected to the lower cross beam via a fixing pin;

[0013] The rotating rod can rotate toward one end outside the lower cross beam, and the rotating angle of the rotating rod relative to the lower cross beam is 180°.

[0014] Furthermore, the two rotating rods at both ends of the upper crossbeam and the lower crossbeam are fixedly connected by bolts.

[0015] Furthermore, the number of connecting rod vertical beams is six;

[0016] A connecting rod is connected between the two rotating rods at both ends of the device;

[0017] Four connecting rods are spaced apart and connected between the two lower cross beams.

[0018] Furthermore, a plurality of limit blocks are fixed at intervals on the surface of the lower cross beam, and the lower surface of the floor is supported on the limit blocks.

[0019] Furthermore, a buffer block is provided on the lower surface of the upper cross beam at a position matching the limit block.

[0020] In the above technical solution, the utility model provides a vehicle body aluminum profile floor lifting and flipping device, which has the following beneficial effects:

[0021] The device of the utility model has high rigidity, which makes the force distribution uniform during the lifting and turning process, avoids direct contact between the floor and the sling, reduces the influence of the separation FL, and reasonably reduces weight. The device achieves the design purpose of saving space, improving efficiency, ensuring quality, reducing the reinvestment of large tooling, and saving a lot of money. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. It is obvious that the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a structural schematic diagram of a vehicle body aluminum profile floor lifting and flipping device disclosed in an embodiment of the utility model;

[0024] Figure 2 The utility model is a top view of a vehicle body aluminum profile floor lifting and flipping device disclosed in an embodiment.

[0025] Description of reference numerals:

[0026] 1. Lower beam; 2. Limit block; 3. Connecting rod; 4. Fixing pin; 5. Buffer block; 6. Upper beam; 7. Rotating rod; 8. Bolt. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] See also Figure 1 to Figure 2 As shown;

[0029] A vehicle body aluminum profile floor lifting and flipping device according to this embodiment includes:

[0030] Two lower beams 1 at the bottom; and

[0031] Two upper beams 6 connected to the upper part of the lower beam 1;

[0032] The lower cross beam 1 and the upper cross beam 6 are connected by a rotating rod 7, and the rotating rod 7 is rotatably connected to the lower cross beam 1, and the rotating rod 7 is fixedly connected to the upper cross beam 6;

[0033] The space between the lower crossbeam 1 and the upper crossbeam 6 is the accommodating space of the floor;

[0034] The device has a plurality of connecting rods 3 connected to external slings.

[0035] Specifically, the present embodiment discloses a device for lifting and flipping a vehicle body aluminum profile floor, which includes two lower cross beams 1 at the bottom and two upper cross beams 6 at the top. The lower cross beams 1 and the upper cross beams 6 are connected by four rotating rods 7. At the same time, the lower cross beams 1 are connected by connecting rods 3, and the connecting rods 3 of the present embodiment are components connected to external slings, thereby avoiding the problem of stress deformation of the floor caused by direct contact with the floor.

[0036] Preferably, the rotating rod 7 of this embodiment is rotatably connected to the lower cross beam 1 via a fixing pin;

[0037] The rotating rod 7 can rotate toward one end outside the lower cross beam 1 , and the rotating angle of the rotating rod 7 relative to the lower cross beam 1 is 180°.

[0038] Preferably, the upper crossbeam 6 of this embodiment is fixedly connected to the two rotating rods 7 at both ends of the lower crossbeam 1 by bolts 8 .

[0039] This embodiment further defines the connection structure between the upper crossbeam 6 and the lower crossbeam 1. After being connected in the above manner, a frame structure can be formed by the upper and lower crossbeams, and the space in the middle of the frame is the space for the floor to pass through.

[0040] Preferably, the connecting rod 3 of this embodiment has six vertical beams;

[0041] A connecting rod 3 is connected between the two rotating rods 7 at both ends of the device;

[0042] Four connecting rods 3 are connected between the two lower cross beams 1 at intervals.

[0043] The device of this embodiment is equipped with connecting rods 3 between the rotating rods 7 and between the lower crossbeams 1, with a total of six connecting rods 3, which can be connected with external slings to realize the lifting and flipping of the floor. When the device of this embodiment is used, at least two sets of the device need to be configured, and they act on the 1 / 4 of the two ends of the spliced ​​floor respectively, and the two sets of devices are hoisted at the same time by two sets of slings to maintain the balance of the floor support. After the single-sided welding of the floor is completed, the device is opened up and down by the bolt structure at both ends and placed on both sides of the floor. The bolts are turned to close the device, so that the floor profile is completely placed in the device. When lifting the floor, the sling is placed on the device and flipped, avoiding direct contact between the sling and the floor, and solving the problem of stress concentration and serious deformation of the floor when the floor is in direct contact with the sling.

[0044] Preferably, in this embodiment, a plurality of limit blocks 2 are fixed at intervals on the surface of the lower cross beam 1 according to the distribution of the slide grooves in the vehicle body floor, and the lower surface of the floor is supported on the limit blocks 2 .

[0045] In order to further protect the floor, a buffer block 5 is provided on the lower surface of the upper cross beam 6 of the present embodiment at a position matching the limit block 2 .

[0046] First, in accordance with the size requirements of the floor drawing, this embodiment installs four aluminum alloy limit blocks on the two lower beams 1 to ensure that the floor will not move and be damaged during the lifting process, and the two upper beams 6 are respectively installed with four resin-based buffer blocks 5 to prevent this device from causing wear to the floor wood.

[0047] When the aluminum profile floor is hoisted and flipped, the number of aluminum alloy limit blocks is adjusted according to the distribution of the slide grooves of the vehicle body floor. After the single-sided welding of the vehicle body floor, the bolts are turned to separate the frame structure from the lower beam, and the frame structure is placed under the floor. The upper beam 6 is then installed on the frame structure above the floor by bolts, so that the floor profile is placed in this device. When the overhead crane moves the floor to flip, the slings are placed at the six connecting rods 3 of this device, so that the force generated during the flipping process is completely applied to this device, thereby avoiding serious deformation caused by the force after the single-sided welding of the floor.

[0048] In the above technical solution, the utility model provides a vehicle body aluminum profile floor lifting and flipping device, which has the following beneficial effects:

[0049] The device of the utility model has high rigidity, which makes the force distribution uniform during the lifting and turning process, avoids direct contact between the floor and the sling, reduces the influence of the separation FL, and reasonably reduces weight. The device achieves the design purpose of saving space, improving efficiency, ensuring quality, reducing the reinvestment of large tooling, and saving a lot of money.

[0050] The device of the utility model is essentially different from the traditional tooling. It can also effectively reduce the stress concentration in the lifting area for floors with higher rigidity. With the continuous increase in the speed of high-speed EMUs, lightweighting of the vehicle body has become an inevitable trend. Under the premise of not changing the parent material, the components after single-sided welding need to consider the safety of lifting and flipping. Therefore, the device of the present application can be used in the assembly welding process of other components.

[0051] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A vehicle body aluminum profile floor lifting and flipping device, characterized in that: The device includes: Two lower cross beams (1) at the bottom; and Two upper cross beams (6) connected to the upper part of the lower cross beam (1); The lower cross beam (1) and the upper cross beam (6) are connected via a rotating rod (7), and the rotating rod (7) is rotatably connected to the lower cross beam (1), and the rotating rod (7) is fixedly connected to the upper cross beam (6); The space between the lower cross beam (1) and the upper cross beam (6) is a floor accommodating space; The device has a plurality of connecting rods (3) connected to external slings.

2. The vehicle body aluminum profile floor lifting and flipping device according to claim 1 is characterized in that: The rotating rod (7) is rotatably connected to the lower cross beam (1) via a fixing pin (4); The rotating rod (7) can rotate toward one end outside the lower cross beam (1), and the rotating angle of the rotating rod (7) relative to the lower cross beam (1) is 180°.

3. The vehicle body aluminum profile floor lifting and flipping device according to claim 2 is characterized in that: The upper crossbeam (6) and two rotating rods (7) at both ends of the lower crossbeam (1) are fixedly connected by bolts (8).

4. The vehicle body aluminum profile floor lifting and flipping device according to claim 2 is characterized in that: The connecting rod (3) has six vertical beams; A connecting rod (3) is connected between the two rotating rods (7) at both ends of the device; Four connecting rods (3) are connected between the two lower cross beams (1) at intervals.

5. The vehicle body aluminum profile floor lifting and flipping device according to claim 1 is characterized in that: A plurality of limit blocks (2) are fixed at intervals on the surface of the lower cross beam (1), and the lower surface of the floor is supported on the limit blocks (2).

6. The vehicle body aluminum profile floor lifting and flipping device according to claim 5, characterized in that: A buffer block (5) is provided on the lower surface of the upper cross beam (6) at a position matching the limit block (2).

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