Welding device for movable arm of excavator

Abstract

The utility model relates to the technical field of welding equipment, in particular to an excavator movable arm welding device which comprises a table body and three supporting blocks, an installation frame is fixedly installed on the upper surface of the table body, a threaded rod is horizontally and rotatably installed in an installation cavity, and a sliding plate is connected to the threaded rod in a threaded and sleeved mode. Vertical rods are symmetrically, vertically and fixedly installed on the upper surface of the sliding plate, sliding openings are symmetrically formed in the upper surface of the table body, one supporting block is fixedly installed on the upper surface of the table body, the other two supporting blocks are arranged in the two sliding openings in a sliding mode respectively and fixedly connected with the two vertical rods respectively, and one end of the threaded rod penetrates out of the table body. A mounting opening is formed in the surface of the supporting block, a through opening is formed in the top end of the supporting block, a mounting shell is rotationally mounted at the bottom of the mounting opening, a hollow rod is rotationally mounted at the top end of the mounting shell in a sealed mode, and the top end of the hollow rod is located in the through opening and fixedly provided with a suction cup. And the fixable movable arm is not in a certain shape any more, so that the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular to a welding device for an excavator boom. Background Technology

[0002] Excavators are widely used in many fields such as engineering construction. As a key component, the boom bears huge working loads and has extremely strict quality requirements. The boom needs to be welded by welding equipment during the processing.

[0003] Before welding, existing booms need to be positioned. However, since the boom shape may be curved or straight, the welding device can only fix booms of one shape and cannot fix booms of different shapes, which makes it impractical. Utility Model Content

[0004] The purpose of this utility model is to solve the following shortcomings in the prior art: before welding, the existing boom needs to be positioned. However, since the boom may be curved or straight, the welding device can only fix booms of one shape and cannot fix booms of different shapes, which is not very practical. Therefore, a welding device for excavator booms is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welding device for an excavator boom includes a platform and three support blocks. A mounting frame is fixedly installed on the upper surface of the platform. An installation cavity is opened inside the platform. A threaded rod is horizontally rotatably installed in the installation cavity. A sliding plate is threaded onto the threaded rod. Vertical rods are symmetrically and vertically fixedly installed on the upper surface of the sliding plate. Sliding openings are symmetrically opened on the upper surface of the platform. One of the support blocks is fixedly installed on the upper surface of the platform. The other two support blocks are slidably arranged in the two sliding openings and are fixedly connected to the two vertical rods respectively. One end of the threaded rod passes through the platform.

[0007] The support block has an installation opening on its surface and a through opening at its top. An installation shell is rotatably installed at the bottom of the installation opening, and a hollow rod is rotatably installed at the top of the installation shell. The top of the hollow rod is located inside the through opening and is fixedly installed with a suction cup.

[0008] Preferably, an adjusting wheel is fixedly installed at one end of the threaded rod that protrudes from the platform, and the surface of the adjusting wheel is provided with anti-slip texture.

[0009] Preferably, the mounting housing is provided with a desorption component, which is used to release the suction cup from adsorption.

[0010] Preferably, the desorption component includes an L-shaped rod vertically fixedly installed on the bottom wall of the mounting housing and an arc-shaped plate fixedly installed on the top of the L-shaped rod. The hollow rod has a vent on its surface. The arc-shaped plate is slidably and sealingly disposed on the inner wall of the hollow rod and is used to block the vent. A mounting ring is fixedly sleeved on the mounting housing. The mounting ring is connected to the mounting port through an elastic component. The hollow rod is fixedly connected to the mounting port through a fixing component. The fixing component includes two fixing rods symmetrically fixedly installed on the surface of the hollow rod. The end of the fixing rod away from the hollow rod is fixedly connected to the wall of the mounting port.

[0011] Preferably, the elastic component includes a torsion spring sleeved on the mounting shell, with both ends of the torsion spring fixedly connected to the lower surface of the mounting ring and the bottom wall of the mounting opening, respectively.

[0012] Preferably, the inner wall of the mounting frame is symmetrically equipped with frame doors, the surface of the frame doors is provided with observation windows, and a transparent observation plate is fixedly embedded in the observation windows.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] By using the suction cup, threaded rod, and three support blocks, curved and straight booms can be quickly and easily attracted and fixed. The booms that can be fixed are no longer of a fixed shape, which improves the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a front perspective view of a welding device for an excavator boom proposed in this utility model;

[0016] Figure 2 This is a partial three-dimensional cross-sectional structural diagram of the platform of the excavator boom welding device proposed in this utility model;

[0017] Figure 3 This is a schematic diagram of a partial three-dimensional cross-sectional structure of the hollow rod, mounting shell, and suction cup in a welding device for an excavator boom proposed in this utility model.

[0018] Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle.

[0019] In the diagram: 1. Body, 2. Mounting frame, 3. Threaded rod, 4. Slide plate, 5. Vertical rod, 6. Slide opening, 7. Support block, 8. Mounting shell, 9. Hollow rod, 10. Suction cup, 11. Adjusting wheel, 12. L-shaped rod, 13. Arc plate, 14. Vent, 15. Mounting ring, 16. Fixing rod, 17. Torsion spring, 18. Frame door, 19. Observation plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] The terms used in this utility model, such as "upper", "lower", "left", "right", "middle" and "one", are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0022] Reference Figures 1-4 A welding device for an excavator boom includes a platform 1 and three support blocks 7. A mounting frame 2 is fixedly installed on the upper surface of the platform 1. A welding boom (not shown) is installed on the top wall of the mounting frame 2. A mounting cavity is opened inside the platform 1. A threaded rod 3 is horizontally rotatably installed in the mounting cavity. A sliding plate 4 is threaded onto the threaded rod 3. Vertical rods 5 are symmetrically and vertically fixedly installed on the upper surface of the sliding plate 4. Sliding openings 6 are symmetrically opened on the upper surface of the platform 1. One support block 7 is fixedly installed on the upper surface of the platform 1. The other two support blocks 7 are slidably arranged in the two sliding openings 6 and are fixedly connected to the two vertical rods 5 respectively. One end of the threaded rod 3 passes through the platform 1. An adjusting wheel 11 is fixedly installed on the end of the threaded rod 3 that passes through the platform 1. The surface of the adjusting wheel 11 is provided with anti-slip texture.

[0023] The support block 7 has an installation opening on its surface and a through opening at its top. An installation shell 8 is rotatably installed at the bottom of the installation opening. A hollow rod 9 is rotatably installed at the top of the installation shell 8. The top of the hollow rod 9 is located inside the through opening and is fixedly installed with a suction cup 10.

[0024] The boom of a backhoe excavator is generally curved, which allows it to excavate soil below the machine's stopping surface more effectively. In contrast, the boom of a front shovel excavator is usually straight, which allows it to excavate soil above the machine's stopping surface more effectively.

[0025] The support block 7, fixedly installed on the upper surface of the platform 1, is located between the other two support blocks 7, and the two support blocks 7 are symmetrically arranged. When it is necessary to fix the boom, first determine whether the boom shape is a curved V-shape or a straight shape. When the boom is curved, first rotate the threaded rod 3. The slide plate 4, which is threaded onto the threaded rod 3, will then move laterally along with the two vertical rods 5 and the two support blocks 7 until the three support blocks 7 move to match the curved shape of the boom. At this time, the boom is placed on the upper surface of the three support blocks 7. The arm is then pressed tightly against the suction cup 10 on the top of the support block 7. The suction cup 10 will contract under the pressure, and the gas inside the suction cup 10 will leak out from the gap between the suction cup 10 and the contact surface of the arm. Thus, the suction cup 10 will adhere to the arm. When the arm is straight, the movement of two of the support blocks 7 can be controlled by rotating the threaded rod 3, so that the three support blocks 7 are basically kept on the same horizontal line. Then the arm is placed on the three support blocks 7, and the suction cup 10 adheres to the arm to complete the fixation.

[0026] The mounting housing 8 is equipped with a desorption component, which is used to release the suction cup 10 from adsorption. The desorption component includes an L-shaped rod 12 vertically fixedly installed on the bottom wall of the mounting housing 8 and an arc-shaped plate 13 fixedly installed on the top of the L-shaped rod 12. A vent 14 is opened on the surface of the hollow rod 9. The arc-shaped plate 13 is slidably sealed on the inner wall of the hollow rod 9 and is used to block the vent 14. A mounting ring 15 is fixedly sleeved on the mounting housing 8. The mounting ring 15 is connected to the mounting port through an elastic component. The elastic component includes a torsion spring 17 sleeved on the mounting housing 8. The two ends of the torsion spring 17 are fixedly connected to the lower surface of the mounting ring 15 and the bottom wall of the mounting port, respectively. The hollow rod 9 is fixedly connected to the mounting port through a fixing component. The fixing component includes two fixing rods 16 symmetrically fixedly installed on the surface of the hollow rod 9. The end of the fixing rod 16 away from the hollow rod 9 is fixedly connected to the opening wall of the mounting port.

[0027] In the initial state, the arc-shaped plate 13 will block the vent 14 under the elastic potential energy of the torsion spring 17, thus keeping the vent 14 closed. When the suction cup 10 is tightly pressed against the boom, the gas inside the suction cup 10, hollow rod 9, and mounting shell 8 cannot escape from the vent 14, but can only escape from the gap between the contact surface of the suction cup 10 and the boom, thus allowing the suction cup 10 to adhere to the boom. When it is necessary to release the suction cup 10, simply rotate the mounting shell 8 to allow the arc-shaped plate 13 to open. 3. Rotate until the vent 14 is no longer blocked. The vent 14 is in the open state, and the gas in the outside will enter the hollow rod 9, the mounting shell 8 and the suction cup 10 through the vent 14, so that the pressure inside and outside the suction cup 10 is the same, and the suction cup 10 and the boom can be easily released. Then, after the mounting shell 8 is released, the mounting shell 8 will quickly rotate and reset under the elastic potential energy of the torsion spring 17, and the L-shaped rod 12 and the arc plate 13 will be blocked again, so that the vent 14 is closed.

[0028] The inner wall of the mounting frame 2 is symmetrically equipped with frame doors 18. The surface of the frame doors 18 is provided with observation windows, and a transparent observation plate 19 is fixedly embedded in the observation windows.

[0029] During welding, the two frame doors 18 can be rotated to close the frame opening of the mounting frame 2, so that the welding process of the boom can be carried out in a relatively enclosed space, avoiding the spread of welding fumes or the indiscriminate splashing of welding slag.

[0030] In this invention, the support block 7 fixedly installed on the upper surface of the platform 1 is located between the other two support blocks 7, and the two support blocks 7 are symmetrically arranged. When it is necessary to fix the boom, first determine whether the boom shape is a curved V-shape or a straight shape. When the boom is curved, first rotate the threaded rod 3. The slide plate 4 threaded onto the threaded rod 3 will then move laterally along with the two vertical rods 5 and the two support blocks 7 until the three support blocks 7 move to match the curved shape of the boom. At this time, place the boom on the upper surface of the three support blocks 7 and make the boom tightly attached to the support blocks 7. When the suction cups 10 at the top abut against each other, the suction cups 10 will contract under the pressure, and the gas inside the suction cups 10 will slip out from the gap between the suction cups 10 and the contact surface of the moving arm, so that the suction cups 10 will adhere to the moving arm. When the moving arm is in a straight shape, the movement of two of the support blocks 7 can be controlled by rotating the threaded rod 3, so that the three support blocks 7 are basically kept on the same horizontal line. Then the moving arm is placed on the three support blocks 7, and the suction cups 10 and the moving arm can be attracted to each other to complete the fixation. It is convenient and quick, and the fixed moving arm is no longer a fixed shape, which improves the practicality of the device.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "connection", "linking", "fixing", etc., should be interpreted broadly.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A welding device for an excavator boom, comprising a platform (1) and three support blocks (7), characterized in that, An installation frame (2) is fixedly installed on the upper surface of the platform (1). An installation cavity is opened inside the platform (1). A threaded rod (3) is horizontally rotatably installed in the installation cavity. A sliding plate (4) is threaded onto the threaded rod (3). Vertical rods (5) are symmetrically and vertically fixed on the upper surface of the sliding plate (4). Sliding openings (6) are symmetrically opened on the upper surface of the platform (1). One of the support blocks (7) is fixedly installed on the upper surface of the platform (1). The other two support blocks (7) are slidably arranged in the two sliding openings (6) and are fixedly connected to the two vertical rods (5). One end of the threaded rod (3) passes through the platform (1). The support block (7) has an installation opening on its surface and a through opening at its top. An installation shell (8) is rotatably installed at the bottom of the installation opening. A hollow rod (9) is rotatably installed at the top of the installation shell (8). The top of the hollow rod (9) is located inside the through opening and is fixedly installed with a suction cup (10).

2. The excavator boom welding device according to claim 1, characterized in that, An adjusting wheel (11) is fixedly installed at one end of the threaded rod (3) that passes through the stage (1). The surface of the adjusting wheel (11) is provided with anti-slip texture.

3. The excavator boom welding device according to claim 1, characterized in that, The mounting housing (8) is provided with a desorption component, which is used to release the suction cup (10) from adsorption.

4. The excavator boom welding device according to claim 3, characterized in that, The desorption component includes an L-shaped rod (12) vertically fixedly installed on the bottom wall of the mounting shell (8) and an arc-shaped plate (13) fixedly installed on the top of the L-shaped rod (12). A vent (14) is provided on the surface of the hollow rod (9). The arc-shaped plate (13) is slidably and sealingly disposed on the inner wall of the hollow rod (9) and is used to block the vent (14). An mounting ring (15) is fixedly sleeved on the mounting shell (8). The mounting ring (15) is connected to the mounting port through an elastic component. The hollow rod (9) is fixedly connected to the mounting port through a fixing component. The fixing component includes two fixing rods (16) symmetrically fixedly installed on the surface of the hollow rod (9). The end of the fixing rod (16) away from the hollow rod (9) is fixedly connected to the wall of the mounting port.

5. The excavator boom welding device according to claim 4, characterized in that, The elastic component includes a torsion spring (17) sleeved on the mounting shell (8), and the two ends of the torsion spring (17) are fixedly connected to the lower surface of the mounting ring (15) and the bottom wall of the mounting opening, respectively.

6. The excavator boom welding device according to claim 1, characterized in that, The inner wall of the mounting frame (2) is symmetrically equipped with frame doors (18), and the surface of the frame doors (18) is provided with observation windows, and a transparent observation plate (19) is fixedly embedded in the observation windows.

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