Crane end beam welding tool

Abstract

The utility model relates to the technical field of crane welding equipment, and discloses a crane end beam welding tool which comprises a support, a conveying belt and a thrust plate, the thrust plate is arranged on one side of the conveying belt in an inclined mode, the angle between the inner side of the thrust plate and the horizontal plane is larger than 30 degrees and smaller than 90 degrees, and a boosting plate is arranged in the middle of the thrust plate. The boosting plate is driven by a boosting air cylinder, and a limiting plate is arranged at one end of the conveying belt and abuts against the support. When the end beam is aligned, the center of gravity of the end beam can be always kept on the conveying belt under the assistance of the boosting plate, and the service life of the tool can be prolonged.

Description

Technical Field

[0001] This utility model relates to the field of crane welding equipment technology, specifically a crane end beam welding fixture. Background Technology

[0002] When welding the end beam of a crane, the end beam needs to be placed on a welding fixture to facilitate welding. After welding is completed, during the process of straightening the end beam, due to the large weight of the end beam itself and the small inclination between the inner side of the thrust plate of the welding fixture and the conveyor belt, the center of gravity of the end beam is easily located on the thrust plate. This makes it difficult for the end beam to straighten during the straightening process. Alternatively, when the conveyor belt is straightened to a horizontal state, the end beam may suddenly straighten from an inclined state, which can cause a huge impact on the conveyor belt and the telescopic rod below it, affecting its service life.

[0003] Document CN205927610U discloses a welding fixture for crane end beams, including a base and a bracket on top of the base. The bracket has a support surface for supporting the end beam, and there is an angle between the support surface and the base. This structure can only be used for welding end beams. After welding is completed, the end beams cannot be transported, which affects the welding efficiency of the end beams.

[0004] Therefore, a new technical solution is needed to address the aforementioned technical problems. Summary of the Invention

[0005] To address the aforementioned problems, this utility model discloses a welding fixture for crane end beams. When the end beam is being straightened, the center of gravity of the end beam can be kept on the conveyor belt with the help of a booster plate, which also improves the service life of the fixture.

[0006] The technical solution of this utility model is as follows: a welding fixture for the end beam of a crane, including a bracket, a conveyor belt, and a thrust plate. The thrust plate is placed at an angle on one side of the conveyor belt. The angle between the inner side of the thrust plate and the horizontal plane is greater than 30° and less than 90°. A booster plate is provided in the middle of the thrust plate. The booster plate is driven by a booster cylinder. A limit plate is provided at one end of the conveyor belt and abuts against the bracket.

[0007] By adopting the above technical solution, the end beam of the crane is placed on the conveyor belt with its bottom on the thrust plate. After the end beam of the crane is welded, the push plate extends outward to help the end beam stay on the conveyor belt during the horizontal placement process. The angle between the inner side of the thrust plate and the horizontal plane is greater than 30° and less than 90°, so that the center of gravity of the end beam in the inclined state is located on the conveyor belt, which facilitates the end beam to change from inclined to horizontal.

[0008] Preferably, the surface of the booster plate and the surface of the thrust plate are parallel, and the thrust plate has a through groove in the middle through which the booster plate passes, the shape of the through groove being adapted to the shape of the booster plate.

[0009] By adopting the above technical solution, after the end beam of the crane is welded, the push plate can be pushed outward to the bottom of the end beam, so that its center of gravity always falls on the receiving plate and the conveyor belt. The shape of the through groove can be made slightly larger than the shape of the push plate, that is, the shape of the through groove is not smaller than the shape of the push plate.

[0010] Preferably, the booster plate is located inside the through groove when the booster cylinder and the booster telescopic rod are retracted, and outside the through groove when the booster telescopic rod is extended. The booster plate is rectangular in shape, and its short side does not penetrate through the groove.

[0011] By adopting the above technical solution, after the end beam is welded, when the conveyor belt changes from an inclined state to a horizontal state, the pusher plate comes out from the thrust plate to push the end beam, so that the end beam quickly changes from an inclined state to a horizontal state along with the conveyor belt.

[0012] Preferably, the output end of the drive motor of the conveyor belt passes through the limiting plate and is connected to the drive shaft of the conveyor belt. The conveyor belt is located inside the receiving plate. The receiving plate is U-shaped. The drive shaft and driven shaft inside the conveyor belt are connected to the receiving plate through bearings. The side of the receiving plate near the thrust plate is located below the thrust plate.

[0013] By adopting the above technical solution, the receiving plate acts as a frame. When the end beam is initially placed, most of it is on the conveyor belt and a small part is on the receiving plate, which facilitates the welding of the end beam. After the welding is completed, the conveyor belt transports it to the next process.

[0014] Preferably, the conveyor belt is driven by an external motor, and the transmission direction of the conveyor belt is parallel to the length direction of the thrust plate. The outer part of the receiving plate on the side of the conveyor belt away from the thrust plate is provided with an inverted L-shaped limiting plate. The end of the limiting plate abuts against the bracket, and the conveyor belt is in a horizontal state.

[0015] By adopting the above technical solution, when the limiting plate abuts against the bracket, the telescopic rod retracts and stops, and the receiving plate is in a horizontal state, which facilitates the transportation of the end beam.

[0016] Preferably, the portion of the receiving plate located inside the thrust plate has a rotating shaft passing through it, with both ends of the rotating shaft located inside bearings, and the bearings located on the support frames on both sides of the bracket.

[0017] By adopting the above technical solution, when it is necessary to place the end beam for welding, the telescopic rod extends out of the receiving plate and rotates around the pivot until the bottom of the receiving plate and the thrust plate are perpendicular.

[0018] Preferably, a cylinder and a telescopic rod are provided at the bottom outer side of the receiving plate frame, and a gap is provided between the thrust plate and the receiving plate to allow the receiving plate to rotate upward around the axis and be perpendicular to the thrust plate.

[0019] The advantages of this utility model are as follows: 1. By setting a booster plate on the thrust plate, when the end beam needs to be straightened, the booster plate can help the end beam to be straightened quickly and improve the straightening speed of the end beam, so as to avoid the center of gravity of the end beam approaching or being located on the thrust plate.

[0020] 2. By making the angle between the thrust plate and the horizontal plane relatively small, the end beam is welded and placed on the receiving plate and conveyor belt. This allows the center of gravity of the end beam to be located on the conveyor belt as much as possible. This way, it can be quickly straightened during the return process and avoids it constantly pressing against the thrust plate.

[0021] 3. When the end beam welding is completed, this utility model can effectively improve the situation where one end of the end beam is always in close contact with the conveyor belt during the return to center, thus preventing damage to the conveyor belt and telescopic rod caused by the sudden return of the end beam to center. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This utility model Figure 1 A structural schematic diagram from another view;

[0024] Figure 3 This is a structural schematic diagram of the present invention in its working state;

[0025] Figure 4 This utility model Figure 3 A structural schematic diagram from another view.

[0026] The components are: 1. bracket, 2. thrust plate, 3. through groove, 4. booster plate, 5. conveyor belt, 6. receiving plate, 7. limit plate, 8. rotating shaft, 9. bearing, 10. support frame, 11. booster telescopic rod, 12. motor, 13. telescopic rod. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0028] like Figure 1-4As shown, the crane end beam welding fixture includes a support 1, a conveyor belt 5, and a thrust plate 2. The thrust plate 2 is placed at an angle on one side of the conveyor belt 5. The angle between the inner side of the thrust plate 2 and the horizontal plane is greater than 30° and less than 90°. A booster plate 4 is provided in the middle of the thrust plate 2. The booster plate 4 is driven by a booster cylinder 11. A limit plate 7 is provided at one end of the conveyor belt 5 and abuts against the support. The crane end beam is placed on the conveyor belt 5, with its bottom on the thrust plate 2. After the end beam of the crane is welded, the booster plate 4 extends outward to help the end beam remain on the conveyor belt 5 during the process of placing the end beam horizontally. The angle between the inner side of the thrust plate 2 and the horizontal plane is greater than 30° and less than 90°, so that the center of gravity of the end beam in the inclined state is located on the conveyor belt 5, which facilitates the end beam to change from inclined to horizontal.

[0029] The surface of the booster plate 4 is parallel to the surface of the thrust plate 2. The thrust plate 2 has a through groove 3 through which the booster plate 4 passes. The shape of the through groove 3 is adapted to the shape of the booster plate 4. After the end beam of the crane is welded, the booster plate 4 can be pushed outward to the bottom of the end beam so that its center of gravity always falls on the receiving plate 6 and the conveyor belt 5. The shape of the through groove 3 can be made slightly larger than the shape of the booster plate 4, that is, the shape of the through groove 3 is not smaller than the booster plate 4.

[0030] When the booster cylinder and the booster telescopic rod 11 are retracted, the booster plate 4 is located inside the through groove 3. When the booster telescopic rod 11 is extended, the booster plate 4 is located outside the through groove 3. The booster plate 4 is rectangular in shape and its short side does not penetrate through. When the end beam is welded, when the conveyor belt 5 changes from an inclined state to a horizontal state, the booster plate 4 comes out from the thrust plate 2 to push the end beam, so that the end beam quickly changes from an inclined state to a horizontal state along with the conveyor belt.

[0031] The upper surface of the conveyor belt 5 is slightly higher than the receiving plate 6 to facilitate the transportation of the end cap. The output end of the drive motor 12 of the conveyor belt 5 passes through the limiting plate 7 and is connected to the drive shaft of the conveyor belt 5. The conveyor belt 5 is located inside the receiving plate 6, which is U-shaped. The drive shaft and driven shaft inside the conveyor belt 5 are connected to the receiving plate 6 through bearings. The side of the receiving plate 6 closest to the thrust plate 2 is located below the thrust plate 2. The receiving plate 6 acts as a frame. When the end beam is initially placed, most of it is on the conveyor belt 5 and a small part is on the receiving plate 6, which facilitates the welding of the end beam. After welding is completed, the conveyor belt 5 transports it to the next process.

[0032] The conveyor belt 5 is driven by an external motor 12. The transmission direction of the conveyor belt 5 is parallel to the length direction of the thrust plate 2. The outer part of the receiving plate 6 on the side of the conveyor belt 5 away from the thrust plate 2 is provided with an inverted L-shaped plate limiting plate 7. The end of the limiting plate 7 abuts against the bracket 1. When the limiting plate 7 abuts against the bracket 1, the conveyor belt 5 is in a horizontal state. When the limiting plate 7 abuts against the bracket 1, the telescopic rod 13 retracts and stops, and the receiving plate is in a horizontal state, which facilitates the transportation of the end beam.

[0033] The portion of the receiving plate 6 located inside the thrust plate 2 has a rotating shaft 8 passing through it. Both ends of the rotating shaft 8 are located inside the bearings 9, and the bearings 9 are located on the support frames 10 on both sides of the bracket 1. When it is necessary to place the end beam for welding, the telescopic rod 13 extends out of the receiving plate 6 and rotates around the rotating shaft 8 until the bottom of the receiving plate 6 and the thrust plate 2 are perpendicular.

[0034] A cylinder and telescopic rod 13 are provided on the bottom outer side of the frame of the receiving plate 6. A gap is provided between the bottom of the thrust plate 2 and the receiving plate 6 so that the receiving plate 6 can rotate around the pivot 8 and be perpendicular to the thrust plate 2.

[0035] Working principle: When the end beam needs to be welded, the telescopic rod 13 extends to lift the receiving plate 6 upwards, and at the same time the conveyor belt 5 follows the receiving plate upwards. The receiving plate 6 rotates around the pivot until the bottom of the thrust plate 2 abuts against the vertical conveyor belt 5. After the end beam welding is completed, the telescopic rod 13 retracts, and at the same time the push plate 4 is pushed outwards to abut against the bottom of the end beam. During the process of the conveyor belt 5 being placed in a horizontal state, it helps the end beam change from an inclined state to a horizontal state following the conveyor belt.

[0036] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The function and structural principle of the present invention have been shown and explained in the embodiments. Without departing from the stated principle, the implementation of the present invention may have any variations or modifications.

Claims

1. A welding tool for the end beam of a crane, comprising a support, a conveyor belt, and a thrust plate, said thrust plate being placed obliquely on one side of the conveyor belt, characterized in that: The angle between the inner side of the thrust plate and the horizontal plane is greater than 30° and less than 90°. A booster plate is provided in the middle of the thrust plate. The booster plate is driven by a booster cylinder. A limit plate is provided at one end of the conveyor belt and abuts against the bracket.

2. The crane end beam welding fixture of claim 1, wherein: The surface of the booster plate is parallel to the surface of the thrust plate, and the thrust plate has a through groove in the middle through which the booster plate passes, the shape of the through groove being adapted to the shape of the booster plate.

3. The crane end beam welding fixture of claim 2, wherein: The booster plate is located inside the through slot when the booster cylinder and the booster telescopic rod are retracted, and outside the through slot when the booster telescopic rod is extended. The booster plate is rectangular in shape, and its short side does not penetrate through the slot.

4. The crane end beam welding fixture of claim 1, wherein: The output end of the drive motor of the conveyor belt passes through the limiting plate and is connected to the drive shaft of the conveyor belt. The conveyor belt is located inside the receiving plate. The receiving plate is U-shaped. The drive shaft and driven shaft inside the conveyor belt are connected to the receiving plate through bearings. The side of the receiving plate near the thrust plate is located below the thrust plate.

5. The crane end beam welding fixture of claim 1, wherein: The conveyor belt is driven by an external motor. The transmission direction of the conveyor belt is parallel to the length direction of the thrust plate. The outer part of the receiving plate on the side of the conveyor belt away from the thrust plate is provided with an inverted L-shaped limiting plate. The end of the limiting plate abuts against the bracket. The conveyor belt is in a horizontal state.

6. The crane end beam welding fixture of claim 5, wherein: The portion of the receiving plate located inside the thrust plate has a rotating shaft passing through it. Both ends of the rotating shaft are located inside bearings, and the bearings are located on the support frames on both sides of the bracket.

7. The crane end beam welding fixture of claim 6, wherein: The outer bottom of the receiving plate frame is provided with a cylinder and a telescopic rod, and a gap is provided between the thrust plate and the receiving plate to allow the receiving plate to rotate upward around the axis and be perpendicular to the thrust plate.

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