Auxiliary lifting device and shield tunneling machine component welding equipment

Abstract

The utility model discloses an auxiliary lifting device and shield tunneling machine component welding equipment, which comprises a fixed support, a lifting support, a connecting support and a locking device, the fixed support is used for being positioned and fixed on a working platform or a moving platform, and the lifting support comprises a connecting frame and a supporting frame. The locking device is used for fixing the connecting frame to the preset height of the fixing support. A supporting base used for installing a connecting support is arranged on the edge of the supporting frame, the lower portion of the connecting support is used for being connected with the welding robot, and the height of the connecting support is smaller than that of a base of the welding robot so that a rotating structure of the welding robot can be located below the supporting frame. The upper portion of the connecting support is used for installing a wire feeding device, a wire feeding support and an electric control assembly used for being electrically connected with a welding robot, a wire feeding disc is rotationally connected to the wire feeding support, and the wire feeding device drives the wire feeding disc to rotationally convey welding wires. Automatic welding of long welding seams of large workpieces such as shield tunneling machine structural parts is achieved, and the welding efficiency and the product quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of welding equipment technology, and in particular, to an auxiliary lifting device. Furthermore, this utility model also relates to a welding equipment for tunnel boring machine components including the aforementioned auxiliary lifting device. Background Technology

[0002] Welding is a relatively harsh working environment, and using robotic welding can reduce the workload of workers to some extent. In recent years, with the rapid development of global industrial automation and the continuous progress of artificial intelligence technology, welding robots have gradually become an important piece of equipment and a trend in the welding production field. Welding robots have the advantages of high efficiency, high precision, high stability, and sustainability.

[0003] Six-axis welding robots have been widely used in welding small batches of diverse products due to their flexibility, covering structural components such as vehicles, bridges, cranes, spoke structures, center structures, track frames, and mainframes. However, fixed six-axis welding robots have limited range of motion for their welding arms, only suitable for welding small parts, resulting in low robot utilization and failing to demonstrate the efficiency of robots compared to manual labor. Utility Model Content

[0004] This utility model provides an auxiliary lifting device and a shield tunneling machine component welding equipment to solve the technical problem that the existing fixed six-axis welding robot welding arm has a limited range of motion and can only meet the welding of small parts, but cannot meet the welding of long welds such as shield tunneling machine structural components.

[0005] According to one aspect of this utility model, an auxiliary lifting device is provided, including a fixed bracket, a lifting bracket, a connecting bracket, and a locking device. The fixed bracket is used for positioning and fixing to a work platform or a mobile platform. The lifting bracket includes a connecting frame and a support frame. The locking device is used to fix the connecting frame at a preset height position on the fixed bracket. The edge of the support frame is provided with a support base for mounting the connecting bracket. The lower part of the connecting bracket is used for connecting to a welding robot. The height of the connecting bracket is less than the height of the welding robot's base so that the rotating structure of the welding robot is located below the support frame. The upper part of the connecting bracket is used for mounting a wire feeding device, a wire feeding bracket, and an electrical control component for electrical connection with the welding robot. A wire feeding disc is rotatably connected to the wire feeding bracket. The wire feeding device drives the wire feeding disc to rotate and feed welding wire to the welding robot.

[0006] As a further improvement to the above technical solution, the lifting bracket includes a connector that is slidably connected to the fixed bracket. The connectors are symmetrically distributed on both sides of the lifting bracket, and the connectors are fixedly connected to the connecting frame.

[0007] As a further improvement to the above technical solution, the fixed bracket is provided with threaded holes at preset intervals along the height direction, the connector is provided with through holes, and the locking device includes a locking screw for passing through the through holes and connecting with the threaded holes.

[0008] As a further improvement to the above technical solution, the connector is provided with a gear, and one side of the fixed bracket is provided with a rack for cooperating with the gear; the locking device is used to restrict the rotation of the gear.

[0009] As a further improvement to the above technical solution, a height indicator is provided on one side of the fixed bracket to indicate the height of the lifting bracket.

[0010] As a further improvement to the above technical solution, the fixed bracket and the lifting bracket are connected by square tube structures, the connecting member is an angle steel welded to one side of the connecting frame, and a groove facing the fixed bracket is formed between the connecting member and the connecting frame, and the two sides of the fixed bracket are respectively inserted into the groove.

[0011] As a further improvement to the above technical solution, the bottom of the fixed bracket is provided with a first connection structure for connecting with a positioning device, the positioning device being used to position and fix the fixed bracket in a preset position.

[0012] As a further improvement to the above technical solution, the bottom of the fixed bracket is provided with a second connection structure for connecting with the mobile device.

[0013] As a further improvement to the above technical solution, the moving device is a pulley.

[0014] According to another aspect of the present invention, a shield tunneling component welding device is also provided, which includes the aforementioned auxiliary lifting device.

[0015] This utility model has the following beneficial effects:

[0016] This device consists of a fixed support, a lifting support, and a connecting support. After adjusting the lifting support to the target height relative to the fixed support, it is secured to the fixed support using a locking device. The connecting frame of the lifting support connects to the fixed support, and the support frame also connects to the fixed support. A cavity is formed in the middle of the supporting frame, and a support base is provided along the edge to connect to the connecting support. The lower part of the connecting support connects to the welding robot, allowing the welding robot to pass through the cavity in the middle of the support frame and float upside down above the welding position. The height of the connecting support is less than the height of the robot's base to avoid interfering with the rotation structure of the welding robot. This installation structure effectively increases the working range of the welding robot. Furthermore, the connecting support also changes the overall center of gravity of the welding robot and its accessories, raising the center of gravity and further stabilizing the support. On the other hand, the fixed support can be installed on a work platform or a mobile platform as needed, allowing the mobile platform to move it in the X and Y axes. This enables automatic welding of large workpieces and long welds, such as those for tunnel boring machine components, improving welding efficiency and product quality. Compared to a tank-type mobile six-axis robot, this device has a simpler structure, lower cost, shorter manufacturing cycle, and higher practicality.

[0017] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the auxiliary lifting device according to a preferred embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the lifting bracket according to a preferred embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the connector according to a preferred embodiment of the present utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the fixed bracket according to a preferred embodiment of the present invention.

[0023] Legend:

[0024] 100. Fixed bracket; 110. Threaded hole; 200. Lifting bracket; 210. Connecting frame; 220. Support frame; 230. Connector; 231. Through hole; 240. Support base; 300. Connecting bracket; 400. Welding robot; 500. Wire feeding device; 600. Wire feeding bracket; 700. Wire feeding spool; 800. Electrical control assembly; 900. Locking screw. Detailed Implementation

[0025] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered below.

[0026] Figure 1 This is a schematic diagram of the auxiliary lifting device according to a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the lifting bracket according to a preferred embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the connector according to a preferred embodiment of the present utility model; Figure 4 This is a schematic diagram of the structure of the fixed bracket according to a preferred embodiment of the present invention.

[0027] like Figures 1 to 4 As shown, the auxiliary lifting device of this embodiment includes a fixed bracket 100, a lifting bracket 200, a connecting bracket 300, and a locking device. The fixed bracket 100 is used to position and fix it to the work platform or the moving platform. The lifting bracket 200 includes a connecting frame 210 and a support frame 220. The locking device is used to fix the connecting frame 210 to a preset height position on the fixed bracket 100. The edge of the support frame 220 is provided with a support base 240 for mounting the connecting bracket 300. The lower part of the connecting bracket 300 is used to connect with the welding robot 400. The height of the connecting bracket 300 is less than the height of the base of the welding robot 400 so that the rotating structure of the welding robot 400 is located below the support frame 220. The upper part of the connecting bracket 300 is used to mount a wire feeding device 500, a wire feeding bracket 600, and an electrical control component 800 for electrical connection with the welding robot 400. A wire feeding disc 700 is rotatably connected to the wire feeding bracket 600. The wire feeding device 500 drives the wire feeding disc 700 to rotate and feed welding wire to the welding robot 400.

[0028] Among them, the wire feeding device 500, wire feeding disc 700, and electrical control component 800 are implemented with reference to the existing welding robot 400 technology, and will not be described in detail; support ribs are provided on both sides of the bottom of the fixed bracket 100 and between the support frame 220 and the connecting frame 210 to improve structural stability and provide solid support.

[0029] It is understood that this device, by setting a fixed bracket 100, a lifting bracket 200, and a connecting bracket 300, adjusts the lifting bracket 200 to the target height relative to the fixed bracket 100 and then fixes it to the fixed bracket 100 by a locking device. The connecting frame 210 of the lifting bracket 200 is used to connect with the fixed bracket 100, and the support frame 220 is connected to the fixed bracket 100. A hole is formed in the middle of the frame 220, and a support base 240 is provided on the edge to connect with the connecting bracket 300. The lower part of the connecting bracket 300 is connected to the welding robot 400, allowing the welding robot 400 to pass through the hole in the middle of the support frame 220 and to be installed upside down and suspended above the welding position. The height is less than the height of the robot base to avoid interfering with the rotation structure of the welding robot 400. This mounting structure effectively increases the working range of the welding robot 400. Furthermore, the connection bracket 300 changes the overall center of gravity of the welding robot 400 and its accessories, raising the center of gravity and further stabilizing the support. On the other hand, the fixed bracket 100 can be installed on the work platform or the mobile platform as needed, and the mobile platform drives it to move in the X and Y axes, realizing the automatic welding of large workpieces and long welds such as tunnel boring machine structural components, improving welding efficiency and product quality. Compared with the tank-type mobile six-axis robot, this device has a simpler structure, lower cost, shorter manufacturing cycle, and higher practicality.

[0030] In this embodiment, the lifting support 200 includes a connector 230 slidably connected to the fixed support 100. The connectors 230 are symmetrically distributed on both sides of the lifting support 200. The connectors 230 are fixedly connected to the connecting frame 210. Specifically, the fixed support 100 and the lifting support 200 are connected by a square tube structure. The connector 230 is an angle steel welded to one side of the connecting frame 210. A groove facing the fixed support 100 is formed between the connector 230 and the connecting frame 210. The two sides of the fixed support 100 are respectively inserted into the groove. Based on the symmetrical arrangement of the two connectors 230, the lifting support 200 can move up and down along the Z-axis direction based on the fixed support 100 through the connectors 230. At the same time, the horizontal direction of the sliding connection between the lifting support 200 and the fixed support 100 is limited, and structural conflicts with the crossbeam square tube component of the fixed support 100 are avoided, resulting in a simplified structure.

[0031] In this embodiment, the fixed bracket 100 is provided with threaded holes 110 at preset intervals along the height direction, the connector 230 is provided with through holes 231, and the locking device includes a locking screw 900 for passing through the through holes 231 and connecting to the threaded holes 110. It can be understood that multiple through holes 231 with matching spacing can be provided on the connector 230 according to the interval distance of the threaded holes 110. After adjusting to the target height position, the locking screw 900 is passed through the through holes 231 to the threaded holes 110 for locking. The operation is convenient and the fixation is more stable.

[0032] In other embodiments, the connector 230 may be provided with a gear, and a rack for cooperating with the gear may be provided on one side of the fixed bracket 100; the locking device is used to restrict the rotation of the gear, and the gear may be driven by a drive mechanism provided on one side of the lifting bracket 200, thereby precisely controlling the lifting height.

[0033] In some embodiments, the fixed bracket 100 is provided with mounting grooves at preset intervals along the height direction on the side facing the connecting frame 210, and the connecting frame 210 is provided with a buckle for cooperating with the mounting groove on the side facing the fixed bracket 100. During specific installation, the buckle is inserted into the mounting groove and overlaps with the mounting groove under the action of gravity for initial fixation. Then, the locking screw 900 is passed through the through hole 231 to the threaded hole 110 to lock it. The height adjustment process does not require equipment assistance, making the operation of fixing the connecting frame 210 more convenient and reducing the difficulty of operation.

[0034] In this embodiment, a height indicator is provided on one side of the fixed bracket 100 to indicate the height of the lifting bracket 200. Specifically, a height scale is set for each height position, and after adjusting to the target height, the height value of the position is input to the electrical control component 8 of the welding robot 400, and the robot is automatically matched and controlled according to a preset program. The height indicator can be implemented by laser printing or ink printing, and there are no restrictions on it.

[0035] In this embodiment, the bottom of the fixed bracket 100 is provided with a first connection structure for connecting with the positioning device. The positioning device is used to position and fix the fixed bracket 100 in a preset position. The fixing device may include structures such as screws, cylindrical pins, and mounting buckles, or it may include a positioning groove provided at the bottom of the fixed bracket 100. A positioning protrusion is provided at the preset position of the working platform or the moving platform to cooperate with the positioning groove to achieve positioning and fixing.

[0036] In this embodiment, the bottom of the fixed bracket 100 is provided with a second connection structure for connecting with the mobile device. The mobile device is a pulley or a slide rail. The second connection structure is provided so that the mobile device can be connected to it and it is easy to disassemble, so as to transfer the device and fix it after transfer. The second connection structure can be the same positioning groove as the first connection structure. That is, the first connection structure and the second connection structure structure system can be used to connect with the mobile device and can also be used for positioning and fixing.

[0037] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An auxiliary lifting device, characterized in that, The system includes a fixed bracket (100), a lifting bracket (200), a connecting bracket (300), and a locking device. The fixed bracket (100) is used to position and fix the system to a work platform or a moving platform. The lifting bracket (200) includes a connecting frame (210) and a support frame (220). The locking device is used to fix the connecting frame (210) to a preset height position on the fixed bracket (100). The edge of the support frame (220) is provided with a support base (240) for mounting the connecting bracket (300). The lower part of the connecting bracket (300) is used to connect with a welding robot (400). The connecting bracket (300) is lower than the height of the base of the welding robot (400) so that the rotating structure of the welding robot (400) is located below the support frame (220); the upper part of the connecting bracket (300) is used to install the wire feeding device (500), the wire feeding bracket (600) and the electrical control component (800) for electrical connection with the welding robot (400); the wire feeding bracket (600) is rotatably connected to the wire feeding disc (700); the wire feeding device (500) drives the wire feeding disc (700) to rotate and feed welding wire to the welding robot (400).

2. The auxiliary lifting device according to claim 1, characterized in that, The lifting bracket (200) includes a connector (230) slidably connected to the fixed bracket (100). The connectors (230) are symmetrically distributed on both sides of the lifting bracket (200), and the connectors (230) are fixedly connected to the connecting frame (210).

3. The auxiliary lifting device according to claim 2, characterized in that, The fixed bracket (100) is provided with threaded holes (110) at preset intervals along the height direction, the connector (230) is provided with through holes (231), and the locking device includes a locking screw (900) for passing through the through hole (231) and connecting with the threaded hole (110).

4. The auxiliary lifting device according to claim 2, characterized in that, The connector (230) is provided with a gear, and one side of the fixed bracket (100) is provided with a rack for cooperating with the gear; the locking device is used to restrict the rotation of the gear.

5. The auxiliary lifting device according to claim 4, characterized in that, A height marker is provided on one side of the fixed bracket (100) to indicate the height of the lifting bracket (200).

6. The auxiliary lifting device according to claim 2, characterized in that, The fixed bracket (100) and the lifting bracket (200) are connected by a square tube structure. The connector (230) is an angle steel welded to one side of the connecting frame (210). A groove is formed between the connector (230) and the connecting frame (210) facing the fixed bracket (100). The two sides of the fixed bracket (100) are respectively inserted into the groove.

7. The auxiliary lifting device according to claim 1, characterized in that, The bottom of the fixed bracket (100) is provided with a first connection structure for connecting with a positioning device, which is used to position and fix the fixed bracket (100) in a preset position.

8. The auxiliary lifting device according to claim 1, characterized in that, The bottom of the fixed bracket (100) is provided with a second connection structure for connecting to the mobile device.

9. The auxiliary lifting device according to claim 8, characterized in that, The moving device is a pulley or a slide rail.

10. A shield tunneling machine component welding equipment, characterized in that, The application has the auxiliary lifting device as described in any one of claims 1-9.

Images