A box girder flipping fixture

Abstract

This utility model discloses a box girder flipping fixture, including at least one base; symmetrical support components are fixedly arranged on both sides of the top surface of the base; a set of jigs is rotatably supported above the two sets of support components, and a through groove is opened on the jig along the length direction of the box girder; a clamping component is arranged in the through groove; a driving component for driving the jig to rotate is arranged between the support components and the jig. The flipping fixture of this utility model is firmly fixed, requires little space, facilitates the flipping of the box girder, and ensures its welding quality.

Description

Technical Field

[0001] This utility model relates to the field of parts welding technology, and in particular to a box beam flipping fixture. Background Technology

[0002] Large box girders on cranes are long and heavy, serving as crucial load-bearing components. The welding quality during box girder fabrication is paramount, given their long welds and numerous welding points. Therefore, multiple rotations are necessary during welding to ensure optimal welding angles at different locations, reducing welding difficulty and guaranteeing quality. However, the large size and weight of large box girders, coupled with limited factory equipment and space, make traditional crane rotation methods difficult. Therefore, specialized rotation fixtures are needed to address these issues. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a box girder flipping fixture that is securely fixed, requires little space, facilitates box girder flipping, and ensures its welding quality.

[0004] This utility model provides a box girder flipping fixture, including at least one base; support components are symmetrically fixed on both sides of the top surface of the base; a set of jigs is rotatably supported above the two sets of support components, and a through groove is opened on the jig along the length direction of the box girder; a clamping component is provided in the through groove; and a driving component for driving the jig to rotate is provided between the support components and the jig.

[0005] Furthermore, the box girder flipping fixture includes two of the aforementioned bases.

[0006] Furthermore, the base includes two parallel I-beams, and several connecting plates are welded between the two I-beams at equal intervals.

[0007] Furthermore, the support assembly includes symmetrically fixed support seats on both sides of the top surface of the base. The top of the support seat is connected to a bracket via a connecting shaft. The top of the bracket is provided with a groove. The two sides of the bottom of the frame are slidably embedded into the groove on the same side.

[0008] Furthermore, the tire frame is circular, and the through groove is rectangular.

[0009] Furthermore, the clamping assembly includes several clamping plates symmetrically arranged on both sides of the through groove. Support frames are symmetrically arranged on both sides of the clamping plates away from the box beam. Several through holes are equally spaced on the support frames along the direction away from the box beam. A fixing frame is provided on the jig corresponding to the support frame. An elongated hole is provided on the fixing frame corresponding to the through hole. The through hole is fixedly connected to the elongated hole by bolts. A threaded sleeve is fixedly installed at the top of the through groove. A screw is threadedly connected to the bottom end of the threaded sleeve. A pressure plate is rotatably connected to the bottom end of the screw through a bearing. A nut is fixedly sleeved near the bottom end of the screw.

[0010] Furthermore, the drive assembly includes a gear rotatably disposed within the support assembly, an external gear ring is fixedly sleeved on the outer periphery of the jig, the gear meshes with the external gear ring, and a flipping motor for driving the gear to rotate is fixedly disposed on the support assembly.

[0011] Furthermore, the reversing motor is a three-in-one motor consisting of a reducer, a motor, and a brake.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This utility model's flipping fixture includes a base, a support assembly, a jig, a clamping assembly, and a drive assembly. During the welding of the box girder, it is passed through a slot in the jig and clamped in place by the clamping assembly. The drive assembly then rotates the jig on the support assembly, causing the box girder to flip to the optimal welding angle. The box girder is securely fixed, requires minimal space for flipping, and is easy to flip, ensuring high welding quality.

[0014] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of a box girder flipping fixture;

[0017] Figure 2 This is a side view of the box girder flipping fixture.

[0018] Figure 3 This is a partially enlarged schematic diagram of the clamping assembly.

[0019] The diagram labels are: 1. Base; 2. Support assembly; 3. Jig; 4. Clamping assembly; 5. Box beam;

[0020] 11. I-beams; 12. Connecting plates;

[0021] 21. Support base; 22. Connecting shaft; 23. Bracket;

[0022] 31. Through groove;

[0023] 41. Clamping plate; 42. Support frame; 43. Fixing frame; 44. Bolt; 45. Threaded sleeve; 46. Screw; 47. Pressure plate; 48. Nut. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0025] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Please refer to Figures 1-3 The present invention provides a box beam flipping fixture, including at least one base 1; support components 2 are symmetrically fixed on both sides of the top surface of the base 1; a set of jigs 3 is rotatably supported above the two sets of support components 2, and a through groove 31 is opened on the jig 3 along the length direction of the box beam 5; a clamping component 4 is provided in the through groove 31; and a driving component for driving the jig 3 to rotate is provided between the support components 2 and the jig 3.

[0027] In this embodiment, when welding the box girder 5, a corresponding number of bases 1 and matching components are first configured according to the length of the box girder 5. Then, the box girder 5 is passed through the through slots 31 on each jig 3 and clamped and fixed by the clamping component 4. At this time, the jig 3 is driven by the driving component to slowly rotate on the support component 2, so as to rotate the box girder 5 to the optimal welding angle, which facilitates the welding operation of the welder. The flipping fixture of this application fixes the box girder 5 firmly, requires little space for flipping, and is convenient to flip, thus ensuring the welding quality of the box girder 5.

[0028] In a preferred embodiment, such as Figure 2 As shown, the box girder flipping fixture includes two bases 1, which meet the support requirements of most box girder 5.

[0029] In a preferred embodiment, such as Figure 2As shown, the base 1 includes two parallel I-beams 11, and several connecting plates 12 are welded between the two I-beams 11 at equal intervals. The structure is simple, easy to process, and has high structural strength, which meets the support requirements of the box beam 5.

[0030] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the support assembly 2 includes symmetrical support seats 21 fixedly disposed on both sides of the top surface of the base 1. The top of the support seat 21 is connected to the bracket 23 through the connecting shaft 22. The top of the bracket 23 is provided with a groove. The two sides of the bottom of the frame 3 are slidably embedded into the groove on the same side.

[0031] In this embodiment, the connecting shaft 22 adopts a large-size structure to meet the support requirements of the box girder 5. Support rollers can be arranged inside the bracket 23 to achieve sliding support, or the jig 3 can be directly driven and supported by the drive assembly. The support assembly 2 is made of steel to meet its support strength requirements.

[0032] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the jig 3 is circular to facilitate its rotation drive; the through slot 31 is rectangular to facilitate the passage of the box beam 5.

[0033] In a preferred embodiment, such as Figure 1 and Figure 3 As shown, the clamping assembly 4 includes several clamping plates 41 symmetrically arranged on both sides of the through groove 31. Support frames 42 are symmetrically arranged on both sides of the clamping plates 41 away from the box beam 5. Several through holes are equally spaced on the support frames 42 along the direction away from the box beam 5. A fixing frame 43 is provided on the jig 3 corresponding to the support frame 42. An elongated hole is provided on the fixing frame 43 corresponding to the through hole. The through hole is fixedly connected to the elongated hole by bolts 44. A threaded sleeve 45 is fixedly arranged at the top of the through groove 31. A screw 46 is threadedly connected to the bottom end of the threaded sleeve 45. A pressure plate 47 is rotatably connected to the bottom end of the screw 46 through a bearing. A nut 48 is fixedly sleeved near the bottom end of the screw 46.

[0034] In this embodiment, when clamping and fixing the box beam 5, firstly move the clamping plate 41 on one side of the box beam 5 so that it is attached to the outside of the box beam 5, and then tighten the corresponding bolts 46 to fix the clamping plate 41 on that side one by one; then attach each clamping plate 41 on the other side of the box beam 5 to the outside of the box beam 5 one by one, and tighten the bolts 46 to fix it, thus completing the clamping and fixing of both sides of the box beam 5.

[0035] Then, use a wrench to clamp the nut 48 and rotate the screw 46, which in turn moves the pressure plate 47 down to press and fix the top of the box beam 5, thus achieving all-round fixation of the box beam 5. The fixation is stable and ensures the safety of the box beam 5 when it is overturned.

[0036] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the drive assembly includes a gear rotatably disposed within the support assembly 2, an external gear ring is fixedly sleeved on the outer periphery of the jig 3, the gear meshes with the external gear ring, and a reversing motor for driving the gear to rotate is fixedly disposed on the support assembly 2.

[0037] In this embodiment, the rotating motor drives the gear to rotate, and the gear and the external gear ring work together to drive the jig 3 to rotate slowly, thereby driving the box beam 5 to rotate slowly, so that the weld is rotated to the optimal welding angle, which facilitates the welder's welding operation, ensures the welding quality, and improves the welding efficiency.

[0038] In a preferred embodiment, the flipping motor is a three-in-one motor consisting of a reducer, a motor and a brake, which has a compact structure, large torque transmission, stable operation, low noise and long service life.

[0039] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A box girder flipping fixture, characterized in that, It includes at least one base (1); support components (2) are symmetrically fixed on both sides of the top surface of the base (1); a set of jigs (3) is rotatably supported above the two sets of support components (2), and a through groove (31) is opened on the jig (3) along the length direction of the box beam (5); a clamping component (4) is provided in the through groove (31); a driving component for driving the jig (3) to rotate is provided between the support components (2) and the jig (3).

2. The box girder flipping fixture according to claim 1, characterized in that, Includes two of the aforementioned bases (1).

3. The box girder flipping fixture according to claim 1, characterized in that, The base (1) includes two parallel I-beams (11), and several connecting plates (12) are welded between the two I-beams (11) at equal intervals.

4. The box girder flipping fixture according to claim 1, characterized in that, The support assembly (2) includes symmetrical support seats (21) fixedly disposed on both sides of the top surface of the base (1). The top of the support seat (21) is connected to a bracket (23) via a connecting shaft (22). The top of the bracket (23) is provided with a groove. The two sides of the bottom of the frame (3) are slidably embedded into the groove on the same side.

5. The box girder flipping fixture according to claim 1, characterized in that, The frame (3) is circular, and the through groove (31) is rectangular.

6. The box girder flipping fixture according to claim 1, characterized in that, The clamping assembly (4) includes several clamping plates (41) symmetrically arranged on both sides of the through groove (31). Support frames (42) are symmetrically arranged on both sides of the clamping plate (41) away from the box beam (5). Several through holes are equally spaced on the support frame (42) along the direction away from the box beam (5). A fixing frame (43) is provided on the jig (3) corresponding to the support frame. An elongated hole is provided on the fixing frame (43) corresponding to the through hole. The through hole is fixedly connected to the elongated hole by a bolt (44). A threaded sleeve (45) is fixedly arranged at the top of the through groove (31). A screw (46) is threadedly connected to the bottom end of the threaded sleeve (45). A pressure plate (47) is rotatably connected to the bottom end of the screw (46) through a bearing. A nut (48) is fixedly sleeved near the bottom end of the screw (46).

7. The box girder flipping fixture according to claim 1, characterized in that, The drive assembly includes a gear rotatably disposed within the support assembly (2), an external gear ring is fixedly sleeved on the outer periphery of the frame (3), the gear meshes with the external gear ring, and a reversing motor for driving the gear to rotate is fixedly disposed on the support assembly (2).

8. The box girder flipping fixture according to claim 7, characterized in that, The reversing motor is a three-in-one motor consisting of a reducer, a motor, and a brake.

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