Cantilever welding mechanism

Abstract

The utility model belongs to the technical field of shield segment production lines, and discloses a cantilever welding mechanism which comprises a stand column, a cross beam and a mounting frame. One end of the beam is rotationally connected to the top end of the stand column, and the other end of the beam is suspended; the mounting frame is slidably mounted on the cross beam along the long axis direction of the cross beam; a transverse rib blanking mechanism is arranged on one side of the mounting frame and used for blanking transverse ribs, a welding upper electrode mechanism is arranged on the other side of the mounting frame, and a welding lower electrode mechanism is arranged at the bottom of the mounting frame. Synchronous rotation and movement of the transverse rib blanking mechanism, the welding upper electrode mechanism and the welding lower electrode mechanism are achieved, transverse rib blanking and welding can be achieved synchronously when transverse ribs are welded every time, a plane net mold does not need to be moved, and the working efficiency is improved. The problem that in the prior art, a transverse rib welding mechanism cannot move, so that the welding operation space is large is solved, and the plane net welding forming efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tunnel segment production line, and in particular to a cantilever welding mechanism. Background Technology

[0002] In the existing shield tunnel segment production process, a shield tunnel segment planar mesh production line is used. This production line involves welding transverse and main ribs to form the planar mesh. However, the transverse rib welding mechanism is fixedly mounted on the welding machine and cannot be moved. It can only weld mesh segments of the same curvature, requiring multiple welding positions by moving the planar mesh during the welding process. This results in a large operating space and low efficiency in planar mesh welding. Utility Model Content

[0003] The purpose of this utility model is to provide a cantilever welding mechanism to solve the problems of large welding operation space and low efficiency of planar mesh welding caused by the inability of the horizontal rib welding mechanism to move.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This utility model provides a cantilever welding mechanism, including:

[0006] A column, wherein the column is arranged vertically;

[0007] A crossbeam, one end of which is rotatably connected to the top of the column, and the other end of which is suspended.

[0008] The mounting frame is slidably mounted on the crossbeam, with the sliding direction along the long axis of the crossbeam; one side of the mounting frame is provided with a cross rib blanking mechanism for blanking cross ribs, the other side of the mounting frame is provided with an upper electrode welding mechanism, and the bottom of the mounting frame is provided with a lower electrode welding mechanism.

[0009] In some embodiments, the crossbeam is perpendicular to the column.

[0010] In some embodiments, the cantilever welding mechanism further includes a rotation drive member disposed on the column, the top end of the column having a rotation shaft, the crossbeam being fixedly connected to the rotation shaft, and the rotation drive member being configured to drive the rotation shaft to rotate.

[0011] In some embodiments, the output end of the rotation drive is provided with a drive gear, and a transmission gear is fixedly connected to the rotation shaft, wherein the drive gear meshes with the transmission gear for transmission connection.

[0012] In some embodiments, the cantilever welding mechanism further includes a moving drive component disposed on the crossbeam, the output end of the moving drive component being connected to the mounting bracket.

[0013] In some embodiments, a mounting plate is provided below the crossbeam, and the moving drive component is fixedly connected between the mounting plate and the mounting frame.

[0014] In some embodiments, the crossbeam is provided with a slider, the top of the mounting bracket is provided with a slide rail, and the slider is slidably installed with the slide rail.

[0015] In some embodiments, the mounting frame includes an L-shaped vertical beam and a horizontal beam, the welding lower electrode mechanism is disposed on the horizontal beam of the mounting frame, and the horizontal rib blanking mechanism and the welding upper electrode mechanism are disposed opposite to each other on both sides of the vertical beam.

[0016] In some embodiments, the crossbeam includes an upper beam, a lower beam, and a longitudinal beam connecting the upper beam and the lower beam. The longitudinal beams are evenly spaced along the long axis of the crossbeam, and both the upper beam and the lower beam are connected to the rotation shaft.

[0017] The beneficial effects of this utility model are:

[0018] The cantilever welding mechanism provided by this utility model includes a horizontal rib blanking mechanism, a welding upper electrode mechanism, and a welding lower electrode mechanism, all mounted on a mounting frame. The mounting frame is slidably connected to a crossbeam, and the crossbeam is rotatably connected to a column, thereby achieving synchronous rotation and movement of the horizontal rib blanking mechanism, the welding upper electrode mechanism, and the welding lower electrode mechanism. Thus, during each horizontal rib welding, the horizontal rib blanking and welding can be achieved simultaneously without moving the planar mesh mold, thereby solving the problem of large welding operation space caused by the inability to move the horizontal rib welding mechanism in the prior art, and improving the welding forming efficiency of the planar mesh. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cantilever welding mechanism provided in this embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the working state of the cantilever welding mechanism provided in this embodiment of the utility model.

[0021] In the picture:

[0022] 100. Cantilever welding mechanism; 200. Planar mesh mold; 300. Horizontal rib;

[0023] 1. Column; 11. Rotating shaft; 12. Transmission gear;

[0024] 2. Crossbeam; 21. Top beam; 22. Bottom beam; 23. Longitudinal beam; 24. Mounting plate; 25. Slider;

[0025] 3. Mounting bracket; 31. Slide rail; 32. Vertical beam; 33. Horizontal beam;

[0026] 4. Horizontal rib blanking mechanism; 5. Upper electrode welding mechanism; 6. Lower electrode welding mechanism; 7. Rotation drive component; 71. Drive gear; 8. Motion drive component. Detailed Implementation

[0027] 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 present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0028] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0031] This utility model first provides a cantilever welding mechanism 100, such as Figure 1As shown, it includes a column 1, a crossbeam 2, and a mounting frame 3. The column 1 is arranged vertically. One end of the crossbeam 2 is rotatably connected to the top of the column 1, and the other end of the crossbeam 2 is suspended. The mounting frame 3 is slidably mounted on the crossbeam 2, and the sliding direction is along the long axis of the crossbeam 2. A horizontal rib feeding mechanism 4 is provided on one side of the mounting frame 3 for feeding horizontal ribs 300. A welding upper electrode mechanism 5 is provided on the other side of the mounting frame 3, and a welding lower electrode mechanism 6 is provided at the bottom of the mounting frame 3.

[0032] In the cantilever welding mechanism 100 provided by this utility model, the horizontal rib blanking mechanism 4, the upper welding electrode mechanism 5, and the lower welding electrode mechanism 6 are all mounted on the mounting frame 3. The mounting frame 3 is slidably connected to the crossbeam 2, and the crossbeam 2 is rotatably connected to the column 1, thereby realizing the synchronous rotation and movement of the horizontal rib blanking mechanism 4, the upper welding electrode mechanism 5, and the lower welding electrode mechanism 6. Thus, when welding the horizontal rib 300, the blanking and welding of the horizontal rib 300 can be realized simultaneously without moving the planar mesh mold 200. According to the curvature and length of the planar mold, the crossbeam 2 can be rotated or the mounting frame 3 can be moved to adapt, thereby solving the problem of large welding operation space caused by the inability to move the horizontal rib 300 welding mechanism in the prior art, which is conducive to improving the welding forming efficiency of the planar mesh.

[0033] In some embodiments, the crossbeam 2 is perpendicular to the column 1. When the crossbeam 2 rotates around the column 1, welding of the crossbeam 2 at any position within the length range of the planar mesh mold 200 can be realized. When the mounting frame 3 moves along the crossbeam 2, the blanking and welding of the horizontal ribs 300 on the curved planar mesh mold 200 can be realized under the cooperation of the axial rotation of the crossbeam 2 and the radial movement of the mounting frame 3, and the welding and forming efficiency of the planar mesh is greatly improved.

[0034] In some embodiments, the cantilever welding mechanism 100 further includes a rotation drive 7, which is disposed on the column 1. The top end of the column 1 is provided with a rotation shaft 11, and the crossbeam 2 is fixedly connected to the rotation shaft 11. The rotation drive 7 is configured to drive the rotation shaft 11 to rotate.

[0035] like Figure 1 As shown, by setting the rotation drive component 7, automatic control of the rotation of the crossbeam 2 is easily achieved, and the rotation angle of the crossbeam 2 is easily controlled. The angle of each rotation can be recorded via the control terminal, making it suitable for batch welding of the horizontal ribs 300 of multiple planar mesh molds 200. This results in good consistency of the planar mesh and high production efficiency. The setting of the rotation shaft 11 further facilitates the installation of the crossbeam 2, which is directly driven to rotate, ensuring good synchronization.

[0036] In some embodiments, the output end of the rotation drive 7 is provided with a drive gear 71, and a transmission gear 12 is fixedly connected to the rotation shaft 11. The drive gear 71 and the transmission gear 12 are meshed and connected for transmission.

[0037] like Figure 1 As shown, the rotation drive component 7 can be a stepper motor. The body of the rotation drive component 7 is fixed on the column 1, and the output end of the rotation drive component 7 is fixedly connected to the drive gear 71. The diameter of the drive gear 71 is smaller than the diameter of the transmission gear 12, thereby enabling the crossbeam 2 to have a large range of rotation angles, which is convenient for adapting to various planar mesh molds 200 and greatly improves its versatility. The rotation shaft 11 is coaxially arranged with the transmission gear 12, thereby realizing the circular motion of the crossbeam 2. The rotation radius is fixed and easy to control.

[0038] In some embodiments, the cantilever welding mechanism 100 further includes a moving drive 8, which is disposed on the crossbeam 2, and the output end of the moving drive 8 is connected to the mounting bracket 3.

[0039] The moving drive component 8 can be a linear drive mechanism such as a cylinder or a hydraulic cylinder. The moving drive component 8 is used to drive and control the radial movement of the mounting frame 3. During material feeding and welding, the moving drive component 8 drives the mounting frame 3 to extend away from the column 1. After each horizontal rib 300 is welded, the moving drive component 8 drives the mounting frame 3 to retract to the initial position in the direction closer to the column 1.

[0040] In some embodiments, a mounting plate 24 is provided below the crossbeam 2, and a moving drive component 8 is fixedly connected between the mounting plate 24 and the mounting bracket 3.

[0041] like Figure 1 As shown, the mounting plate 24 is set in the vertical direction, and the top of the mounting plate 24 is fixedly connected to the lower surface of the crossbeam 2. The output end of the moving drive component 8 is set along the long axis of the crossbeam 2. By setting the mounting plate 24, it is convenient to make the driving direction of the moving drive component 8 parallel to the long axis of the crossbeam 2, and to utilize the installation positioning and drive control.

[0042] In some embodiments, the crossbeam 2 is provided with a slider 25, and the top of the mounting bracket 3 is provided with a slide rail 31, with the slider 25 and the slide rail 31 being slidably fitted together.

[0043] like Figure 1 As shown, multiple sets of sliders 25 are provided on the lower surface of the suspension end of the crossbeam 2 away from the column 1. The slide rail 31 is set on the top of the mounting bracket 3. When the slide rail 31 is retracted, it can pass through the top space of the moving drive component 8 and abut against the mounting plate 24 to limit and determine the initial position. Setting the slide rail 31 on the mounting bracket 3 allows the mounting bracket 3 to have a larger travel distance, and when the mounting bracket 3 is in the retracted position, it can be completely retracted under the crossbeam 2, avoiding structural position interference during the rotation of the crossbeam 2.

[0044] In some embodiments, the mounting frame 3 includes an L-shaped vertical beam 32 and a horizontal beam 33. The welding lower electrode mechanism 6 is disposed on the horizontal beam 33 of the mounting frame 3, and the horizontal rib blanking mechanism 4 and the welding upper electrode mechanism 5 are disposed opposite each other on both sides of the vertical beam 32.

[0045] For example Figure 1 The top end of the vertical beam 32 is connected to the output end of the moving drive component 8 via a fixing mechanism. The slide rail 31 is mounted on the fixing mechanism. One end of the horizontal beam 33 is fixedly connected to the bottom end of the vertical beam 32. The horizontal beam 33 is located on the side of the vertical beam 32 away from the column 1. A pair of welding lower electrode mechanisms 6 are mounted on the horizontal beam 33. The horizontal rib blanking mechanism 4 in this embodiment is a prior art product, used to realize the loading and unloading of the horizontal rib 300 on the planar mesh mold 200. The welding upper electrode mechanism 5 and the welding lower electrode mechanism 6 are correspondingly set and are set in pairs. After the horizontal rib 300 is blanked, the welding upper electrode mechanism 5 and the welding lower electrode mechanism 6 realize the simultaneous welding and fixing of both ends of the horizontal rib 300.

[0046] In some embodiments, the crossbeam 2 includes an upper beam 21, a lower beam 22, and a longitudinal beam 23 connecting the upper beam 21 and the lower beam 22. The longitudinal beams 23 are evenly spaced along the long axis of the crossbeam 2. Both the upper beam 21 and the lower beam 22 are connected to the rotating shaft 11, giving the crossbeam 2 good connection strength and facilitating installation. Furthermore, the longitudinal beam 23 adopts a frame structure, which reduces weight. Both the upper beam 21 and the lower beam 22 are made of plates and are fixed to the outer wall of the rotating shaft 11 by welding, facilitating connection.

[0047] The cantilever welding mechanism 100 provided by this utility model has the following cantilever welding steps:

[0048] S1, the cantilever welding mechanism 100 and the planar mesh mold 200 are spaced apart to determine the welding positions of multiple horizontal ribs 300 on the planar mesh mold 200; such as Figure 2 As shown, a cantilever welding mechanism 100 is provided on the concave arc side of the planar mesh mold 200, and the crossbeam 2 can reach both ends of the planar mesh mold 200 when it rotates in the fan-shaped area.

[0049] S2, drive the crossbeam 2 to rotate around the column 1 to the welding position directly opposite the first horizontal rib 300; in this embodiment, the welding position of the first horizontal rib 300 is... Figure 2 The leftmost position.

[0050] S3, drive the mounting bracket 3 to move toward the flat mesh mold 200 and extend into place; here the blanking is determined according to the horizontal rib blanking mechanism 4, or preset before starting.

[0051] S4, the horizontal rib blanking mechanism 4 on the mounting frame 3 blanks the horizontal rib 300, and the welding upper electrode mechanism 5 and the welding lower electrode mechanism 6 weld the two ends of the horizontal rib 300 respectively.

[0052] S5, Mounting bracket 3 retracts to its initial position;

[0053] S6, drive the crossbeam 2 to rotate around the column 1 to the next welding position; preferably, the crossbeam 2 performs clockwise step selection to realize the gradual material dropping and welding of the cross rib 300.

[0054] S7. Repeat steps S3-S6 until all transverse ribs are welded at 300mm.

[0055] The cantilever welding mechanism 100 provided by this utility model solves the problem of large welding operation space caused by the inability of the horizontal rib 300 welding mechanism to move in the prior art by controlling the rotation and movement of the horizontal rib blanking mechanism 4, the upper welding electrode mechanism 5, and the lower welding electrode mechanism 6 as a whole, thus improving the efficiency of planar mesh welding. The crossbeam 2 rotates sequentially by a set angle in a clockwise or counterclockwise direction to correspond to the blanking position of the horizontal rib 300. The mounting frame 3 moves and extends to realize blanking and welding. The welding process is simple, easy to control, and makes full use of vertical space, thereby reducing the footprint of the welding equipment.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A cantilever welding mechanism, characterized in that, include: A column (1) is provided in a vertical direction; A crossbeam (2), one end of which is rotatably connected to the top of the column (1), and the other end of which is suspended; Mounting bracket (3) is slidably mounted on the crossbeam (2) with the sliding direction along the long axis of the crossbeam (2); a horizontal rib feeding mechanism (4) is provided on one side of the mounting bracket (3) for feeding horizontal ribs (300); a welding upper electrode mechanism (5) is provided on the other side of the mounting bracket (3); and a welding lower electrode mechanism (6) is provided at the bottom of the mounting bracket (3).

2. The cantilever welding mechanism according to claim 1, characterized in that, The crossbeam (2) is perpendicular to the column (1).

3. The cantilever welding mechanism according to claim 1, characterized in that, It also includes a rotation drive (7), which is mounted on the column (1). The top of the column (1) is provided with a rotation shaft (11), and the crossbeam (2) is fixedly connected to the rotation shaft (11). The rotation drive (7) is configured to drive the rotation shaft (11) to rotate.

4. The cantilever welding mechanism according to claim 3, characterized in that, The output end of the rotation drive (7) is provided with a drive gear (71), and a transmission gear (12) is fixedly connected on the rotation shaft (11). The drive gear (71) and the transmission gear (12) are meshed and connected for transmission.

5. The cantilever welding mechanism according to claim 1, characterized in that, It also includes a moving drive unit (8), which is disposed on the crossbeam (2), and the output end of the moving drive unit (8) is connected to the mounting bracket (3).

6. The cantilever welding mechanism according to claim 5, characterized in that, An mounting plate (24) is provided below the crossbeam (2), and the moving drive component (8) is fixedly connected between the mounting plate (24) and the mounting bracket (3).

7. The cantilever welding mechanism according to claim 1, characterized in that, The crossbeam (2) is provided with a slider (25), and the top of the mounting bracket (3) is provided with a slide rail (31). The slider (25) and the slide rail (31) are slidably fitted together.

8. The cantilever welding mechanism according to claim 1, characterized in that, The mounting frame (3) includes an L-shaped vertical beam (32) and a horizontal beam (33). The welding lower electrode mechanism (6) is located on the horizontal beam (33) of the mounting frame (3). The horizontal rib blanking mechanism (4) and the welding upper electrode mechanism (5) are arranged opposite to each other on both sides of the vertical beam (32).

9. The cantilever welding mechanism according to claim 3, characterized in that, The crossbeam (2) includes an upper beam (21), a lower beam (22), and a longitudinal beam (23) connecting the upper beam (21) and the lower beam (22). The longitudinal beam (23) is evenly spaced along the long axis of the crossbeam (2). The upper beam (21) and the lower beam (22) are both connected to the rotating shaft (11).

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