Three-dimensional platform cargo boom welding tool

Abstract

The utility model discloses a three-dimensional platform cargo boom welding tool, which belongs to the technical field of cargo boom welding and solves the problems of single function and poor universality of a fixed tool. The welding tool comprises a bottom frame, a fixed frame and a movable frame, the fixed frame and the movable frame are arranged on the bottom frame, the fixed frame is fixed at one end of the bottom frame, and the movable frame is fixed at the other end of the bottom frame. The fixed frame is arranged at one end of the bottom frame in a sliding mode, the movable frame is arranged at the other end of the bottom frame in a sliding mode, the fixed frame, the movable frame and the bottom frame are each provided with a plurality of installation holes, and the sides, close to each other, of the fixed frame and the movable frame are each provided with a first positioning connector. The two first positioning connectors are used for fixing the two ends of an upper chord of the cargo boom, a second positioning connector used for positioning the front end of a lower chord of the cargo boom is arranged on one face of the fixing frame, and the first positioning connectors and the second positioning connector are detachably connected with the fixing frame. A third positioning connector used for fixing the tail end of the lower chord of the cargo boom is arranged on one face of the movable frame.

Description

Technical Field

[0001] The utility model relates to the technical field of boom welding, in particular to a three-dimensional platform boom welding tooling. Background Art

[0002] The boom of a tower crane generally includes a boom upper chord 101 and a boom lower chord 102, and the boom upper chord 101 and the boom lower chord 102 are connected by side web members 104. Generally, two boom lower chords 102 are provided, and the two boom lower chords 102 are in the same plane and are connected by a main chord. One boom upper chord 101 is provided and is located in the middle of the two boom lower chords 102 in the vertical direction. As Figure 1 shown, it is a schematic diagram after the boom welding is completed. Among them, the boom is composed of different boom sections (about 7-10 boom sections), Figure 1 is a schematic diagram of the first boom section, Figure 2 is a structural schematic diagram of the second boom section, Figure 3 is a schematic diagram of the connecting plate 103 at the end of the boom lower chord 102. The lengths of the boom sections are commonly 10 meters and 5 meters, and from the boom root to the boom tip, the material specifications of each boom section are different (generally, the materials become thinner from the boom root to the boom tip).

[0003] In the factory, the combined welding tooling for the boom of a common tower crane mostly adopts a fixed tooling. Although it can meet the requirements of combined welding, in actual use, there are still some problems as follows: The fixed tooling has a relatively single function and poor versatility. Different fixed toolings are required for positioning and welding tower booms of different models. This not only occupies a large area of production layout, but also wastes a large amount of raw materials and time. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a three-dimensional platform boom welding tooling.

[0005] The technical solution for the utility model to solve the above technical problems is as follows:

[0006] A three-dimensional platform boom welding fixture, comprising a chassis, as well as a fixed frame and a movable frame arranged on the chassis. The fixed frame is fixed at one end of the chassis, and the movable frame is slidably arranged at the other end of the chassis. A plurality of mounting holes are provided on the fixed frame, the movable frame and the chassis. On the surfaces of the fixed frame and the movable frame that are close to each other, a first positioning joint is provided. The two first positioning joints are located on the same horizontal plane, and the two first positioning joints are used to fix the two ends of the upper chord of the boom. On one surface of the fixed frame, a second positioning joint for positioning the front end of the lower chord of the boom is provided. The first positioning joint and the second positioning joint are both detachably connected to the fixed frame. On one surface of the movable frame, a third positioning joint for fixing the tail end of the lower chord of the boom is provided.

[0007] The effects of adopting the above technical solution are as follows: The operator uses a hoist chain or other lifting equipment to lift the upper chord of the boom, making it suspended in mid-air. The operator first connects the welding head to the first positioning joint. Here, the welding head is a welded part. (The purpose of welding is to weld the welding head to the ends of the upper chord and the lower chord of the boom). The operator first connects one end of the upper chord of the boom to the welding head of the first positioning joint (movable frame), which can initially position one end of the upper chord of the boom. Then, the operator drives the movable frame to slide according to the size of the upper chord of the boom. Since the upper chord of the boom is still suspended in mid-air and one end has been connected to the movable frame through the welding joint, driving the movable frame to slide can make the movable frame drive the upper chord of the boom to slide synchronously towards the end close to the fixed frame. After that, the operator fixes the other end of the upper chord of the boom through the first positioning joint on the fixed frame. Thus, the purpose of fixing the position of the upper chord of the boom is achieved through the first positioning joints on the fixed frame and the movable frame; the limiting of the lower chord of the boom is similar to the operation method of the upper chord of the boom. The difference is that the lower chord of the boom does not need to be suspended in mid-air. When the position of the lower chord of the boom is determined, the lower chord of the boom can be fixed through the second positioning joint and the third positioning joint. By adopting the above solution, the stability and accuracy in the welding process can be improved, the welding quality of the workpiece can be improved, and the welding fixture has strong versatility;

[0008] It should be noted that in the above manual operation process, the distance between the fixed frame and the movable frame can also be adjusted according to the size of the workpiece first. For example, if the workpiece size is 5 meters or 10 meters (common workpiece lengths, and there are also workpieces with lengths of 7 meters or other sizes), the distance between the fixed frame and the movable frame is adjusted and determined according to the workpiece size, and then the workpiece is fixed. Both of the two manual operation methods can be selected according to personal habits. The main purpose is to fix the workpiece and position the workpiece;

[0009] In addition, since the positioning joint one, the positioning joint two, and the positioning joint three are all detachably connected to the fixed frame or the movable frame, the positions of the positioning joint one, the positioning joint two, and the positioning joint three can be adjusted up and down according to the width of the workpiece, realizing the adjustment in the vertical and horizontal directions.

[0010] Furthermore, the structures of the positioning joint one and the positioning joint two are the same or different.

[0011] Furthermore, the positioning joint one includes a positioning ear plate, the positioning ear plate is U-shaped, and the positioning ear plate is provided with a positioning hole for cooperating with the welding head. When the through hole of the welding head coincides with the axis of the positioning hole, the two are fixed by a positioning pin shaft, and the welding head is adapted to the end of the upper chord of the boom.

[0012] The effect of adopting the above technical solution is that when fixing the upper chord of the boom, first connect the welding head with a pin shaft, and then adjust the distance between the fixed frame and the movable frame so that the upper chord of the boom can cooperate with the welding head. After the positions of the welding head and the upper chord of the boom are adjusted, it is convenient for subsequent welding operations.

[0013] Furthermore, one end of the positioning pin shaft is provided with a guiding head, and the diameter of the guiding head is smaller than the diameter of the positioning pin shaft.

[0014] The effect of adopting the above technical solution is that when the welding head is matched with the positioning ear plate, the setting of the guiding head can provide guidance for connecting the welding head and the positioning ear plate by the positioning pin shaft, facilitating the operation.

[0015] Furthermore, a slide rail is provided on the chassis, and a pulley adapted to the rail is provided at the bottom of the movable frame.

[0016] The effect of adopting the above technical solution is that through the cooperation of the pulley and the slide rail, it is convenient for the movable frame to slide, so as to adjust the distance between the movable frame and the fixed frame, thereby further improving the convenience of installing the welding head and the upper chord or the lower chord of the boom.

[0017] Furthermore, a positioning plate is provided above the chassis, the positioning plate is detachably connected to the chassis, a first limiting plate and a second limiting plate are provided above the positioning plate, the first limiting plate and the second limiting plate are connected, the second limiting plate is L-shaped, and the horizontal part of the second limiting plate is used to press the lower chord of the boom.

[0018] The effect of adopting the above technical solution is that by placing the lower chord of the boom on the positioning plate and using the cooperation between the first limiting plate and the second limiting plate, the lower chord of the boom can be further limited and pressed, further improving the stability of the lower chord of the boom.

[0019] Furthermore, the positioning plate is perpendicular to the chassis, and a plurality of positioning plates are provided.

[0020] Furthermore, the positioning plate is in the shape of a "work" character.

[0021] The effect of adopting the above technical solution is that a first limiting plate and a second limiting plate are arranged on each positioning plate, which can further improve the limiting purpose of the lower chord of the boom, thereby improving the stability. Description of the Drawings

[0022] Figure 1 It is a schematic diagram after the welding of the first boom section is completed;

[0023] Figure 2 It is a schematic diagram after the welding of the second boom section is completed;

[0024] Figure 3 It is a schematic diagram of the connecting plate;

[0025] Figure 4 It is a schematic diagram of the overall structure of the embodiment of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the fixing frame of the embodiment of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the positioning pin shaft and the guide head in the embodiment of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the movable frame of the embodiment of the present invention;

[0029] Figure 8 It is a schematic diagram of the positional relationship among the positioning plate, the first limiting plate and the second limiting plate in the embodiment of the present invention;

[0030] Figure 9 It is a top view of the boom assembly in the embodiment of the present invention;

[0031] Figure 10 It is a schematic diagram of the structure of the positioning ear plate in the embodiment of the present invention.

[0032] Description of the reference numerals: 1. Chassis; 2. Fixing frame; 3. Movable frame; 4. Positioning joint one; 5. Positioning joint two; 6. Positioning joint three; 7. Positioning ear plate; 8. Positioning pin shaft; 9. Guide head; 10. Positioning plate; 11. First limiting plate; 12. Second limiting plate; 13. Mounting hole; 100. Welding head; 101. Upper chord of the boom; 102. Lower chord of the boom; 103. Connecting plate; 104. Side web member. Detailed Description of the Invention

[0033] The principles and features of the present utility model will be described below in conjunction with all the attached drawings. The examples cited are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0034] An embodiment of the present utility model discloses a three-dimensional platform boom welding tooling.

[0035] Referring to Figures 1-10 , a three-dimensional platform boom welding tooling includes a chassis 1, and a fixed frame 2 and a movable frame 3 arranged on the chassis 1. The fixed frame 2 is fixed at one end of the chassis 1, the movable frame 3 is slidably arranged at the other end of the chassis 1, and a plurality of mounting holes 13 are provided on the fixed frame 2, the movable frame 3 and the chassis 1. On one side of the fixed frame 2 and the movable frame 3 that are close to each other, a first positioning joint 4 is provided. The two first positioning joints 4 are located on the same horizontal plane, and the two first positioning joints 4 are used to fix the two ends of the boom upper chord 101. Since the size of the boom is large, and the size and weight of the boom upper chord 101 are both large, when positioning the boom upper chord 101, generally a hoist chain or other lifting structure is used to lift the boom upper chord 101, and then the positioning operation is carried out. On one surface of the fixed frame 2, a second positioning joint 5 for positioning the front end of the boom lower chord 102 is provided. The first positioning joint 4 and the second positioning joint 5 are both detachably connected to the fixed frame 2. In the embodiment of the present utility model, the positions of the first positioning joint 4 and the second positioning joint 5 are fixed by means of bolt connection, and the setting of the mounting holes 13 can facilitate the adjustment of the installation positions of the first positioning joint 4 and the second positioning joint 5. On one surface of the movable frame 3, a third positioning joint 6 for fixing the tail end of the second boom is provided. A connecting plate 103 needs to be welded at the tail end of the boom lower chord 102. As Figures 1-3 shown, positioning pin holes and bolt connection holes are drilled in the connecting plate 103. The welding of the connecting plate 103 is not specifically described in the embodiment of the present utility model.

[0036] The operator uses a hoisting chain or other lifting equipment to lift the upper chord 101 of the boom, making it suspended in mid-air. First, the operator connects the welding head 100 to the first positioning joint 4. Here, the welding head 100 is a welded part. (The purpose of welding is to weld the welding head 100 to the ends of the upper chord 101 and the lower chord 102 of the boom). First, the operator connects one end of the upper chord 101 of the boom to the welding head 100 of the first positioning joint 4 (movable frame 3), which can initially position one end of the upper chord 101 of the boom. Then, the operator drives the movable frame 3 to slide according to the size of the upper chord 101 of the boom. Since the upper chord 101 of the boom is still in a suspended state in mid-air and one end has been connected to the movable frame 3 through the welding joint, driving the movable frame 3 to slide can make the movable frame 3 drive the upper chord 101 of the boom to slide synchronously towards the end close to the fixed frame 2. After that, the operator fixes the other end of the upper chord 101 of the boom through the first positioning joint 4 on the fixed frame 2. Thus, the purpose of fixing the position of the upper chord 101 of the boom is achieved through the first positioning joints 4 on the fixed frame 2 and the movable frame 3; the limiting of the lower chord 102 of the boom is similar to the operation method of the upper chord 101 of the boom. The difference is that the lower chord 102 of the boom does not need to be suspended in mid-air. When the position of the lower chord 102 of the boom is determined, the lower chord 102 of the boom can be fixed through the second positioning joint 5 and the third positioning joint 6. Adopting the above scheme can improve the stability and accuracy during the welding process, improve the welding quality of the workpiece, and the welding tooling has strong versatility.

[0037] The base frame 1 is provided with a slide rail, and the bottom of the movable frame 3 is provided with pulleys adapted to the rail. The driving structure for the sliding of the movable frame 3 is not described in this utility model. As long as it can drive the movable frame 3 to slide along the slide rail. Through the cooperation of the pulley and the slide rail, it is convenient for the movable frame 3 to slide, so as to adjust the distance between the movable frame 3 and the fixed frame 2, thereby further improving the convenience of installing the welding head 100 and the upper chord 101 of the boom or the lower chord 102 of the boom.

[0038] Above the base frame 1, there is a positioning plate 10. The positioning plate 10 is perpendicular to the base frame 1, and there are multiple positioning plates 10. The multiple positioning plates 10 are arranged along the length direction of the base frame 1. The positioning plate 10 is in an "I" shape. Each positioning plate 10 is provided with a first limiting plate 11 and a second limiting plate 12, which can achieve the purpose of further limiting the lower chord 102 of the boom, thereby improving the stability. Figure 8As shown in the figure. The positioning plate 10 is detachably connected to the chassis 1. In the embodiment of the present utility model, the positioning plate 10 is connected to the chassis 1 by bolts; the first limiting plate 11 is connected to the positioning plate 10 by bolts. The positioning plate 10 is provided with a plurality of connection holes, and the first limiting plate 11 is connected to the connection holes by bolts, so as to achieve the purpose of fixing the position of the first limiting plate 11, and the position of the first limiting plate 11 can be adjusted by changing the position of the connection holes; the first limiting plate 11 is connected with a second limiting plate 12. The second limiting plate 12 is in an L shape. The horizontal part of the second limiting plate 12 is used to press the lower chord 102 of the boom, and the vertical part of the second limiting plate 12 is connected to the first limiting plate 11. In this embodiment, the vertical part of the second limiting plate 12 is connected to the first limiting plate 11 by bolts or pins, which is convenient for disassembly and adjustment at the same time.

[0039] Place the lower chord 102 of the boom on the positioning plate 10. By using the cooperation between the first limiting plate 11 and the second limiting plate 12, the lower chord 102 of the boom can be further limited and pressed, further improving the stability of the lower chord 102 of the boom.

[0040] The structures of the first positioning joint 4 and the second positioning joint 5 are the same or different, which is convenient for operation. Whether the structures of the first positioning joint 4 and the second positioning joint 5 are the same mainly depends on the structural form of the boom. Taking the first positioning joint 4 as an example, the description is as follows.

[0041] The first positioning joint 4 includes a positioning ear plate 7. The positioning ear plate 7 is in a U shape, as Figure 10 shown. The positioning ear plate 7 is provided with a positioning hole for cooperating with the welding head 100. When the through hole of the welding head 100 coincides with the axis of the positioning hole, the two are fixed by a positioning pin 8. The welding head 100 is adapted to the end of the upper chord 101 of the boom. The cross section of the welding head 100 is in a U-shaped structure. The end of the upper chord 101 of the boom is stuck in the welding head 100, and then the welding head 100 is welded to the upper chord 101 of the boom, as Figure 1 shown.

[0042] When fixing the upper chord 101 of the boom, first connect the welding head 100 with a pin, and then adjust the distance between the fixing frame 2 and the movable frame 3 so that the upper chord 101 of the boom can cooperate with the welding head 100. After the positions of the welding head 100 and the upper chord 101 of the boom are adjusted, it is convenient for subsequent welding operations, that is, welding the welding head 100 to the upper chord 101 of the boom, as Figure 1 shown.

[0043] One end of the positioning pin shaft 8 is provided with a guiding head 9, and the diameter of the guiding head 9 is smaller than that of the positioning pin shaft 8. When the welding head 100 is matched with the positioning ear plate 7, the arrangement of the guiding head 9 can provide guidance for the positioning pin shaft 8 when connecting the welding head 100 and the positioning ear plate 7, facilitating the operation. At the same time, when it is necessary to disassemble the positioning pin shaft 8, by using tools such as a hammer to strike the guiding head 9, the positioning pin shaft 8 can be easily taken out.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A three-dimensional platform boom welding tooling, characterized in that, It includes a chassis (1), a fixed frame (2) and a movable frame (3) arranged on the chassis (1). The fixed frame (2) is fixed at one end of the chassis (1), and the movable frame (3) is slidably arranged at the other end of the chassis (1). A plurality of mounting holes (13) are formed in the fixed frame (2), the movable frame (3) and the chassis (1). On one side of the fixed frame (2) and the movable frame (3) that are close to each other, a first positioning joint (4) is provided. The two first positioning joints (4) are located on the same horizontal plane, and the two first positioning joints (4) are used to fix the two ends of the upper chord of the boom (101). On one side surface of the fixed frame (2), a second positioning joint (5) for positioning the front end of the lower chord of the boom (102) is provided. The first positioning joint (4) and the second positioning joint (5) are both detachably connected to the fixed frame (2). On one side of the movable frame (3), a third positioning joint (6) for fixing the tail end of the lower chord of the boom (102) is provided; above the chassis (1), a positioning plate (10) is provided. The positioning plate (10) is detachably connected to the chassis (1). Above the positioning plate (10), a first limiting plate (11) and a second limiting plate (12) are provided. The first limiting plate (11) and the second limiting plate (12) are connected. The second limiting plate (12) is L-shaped, and the horizontal part of the second limiting plate (12) is used to press the lower chord of the boom (102).

2. The three-dimensional platform boom welding tooling according to claim 1, characterized in that: The structures of the first positioning joint (4) and the second positioning joint (5) are the same or different.

3. The three-dimensional platform boom welding tooling according to claim 1 or 2, characterized in that: The first positioning joint (4) includes a positioning ear plate (7). The positioning ear plate (7) is U-shaped and is provided with a positioning hole for cooperating with a welding head (100). When the through hole of the welding head (100) coincides with the axis of the positioning hole, the two are fixed by a positioning pin shaft (8). The welding head (100) is adapted to the end of the upper chord of the boom (101).

4. The three-dimensional platform boom welding tooling according to claim 3, characterized in that: One end of the positioning pin shaft (8) is provided with a guiding head (9), and the diameter of the guiding head (9) is smaller than the diameter of the positioning pin shaft (8).

5. The three-dimensional platform boom welding tooling according to claim 1, characterized in that: A slide rail is provided on the chassis (1), and a pulley adapted to the track is provided at the bottom of the movable frame (3).

6. The three-dimensional platform jib welding tooling according to claim 1, characterized in that: The positioning plate (10) is perpendicular to the chassis (1), and a plurality of positioning plates (10) are provided.

7. The three-dimensional platform boom welding tooling according to claim 1, characterized in that: The positioning plate (10) is in the shape of a "worker" character.

Images