Metal plate electric box welding robot system and clamp assembly thereof

Abstract

The utility model discloses a metal plate electric box welding robot system and a clamp assembly thereof. The clamp assembly comprises a boss and a supporting frame. The boss protrudes outwards in the longitudinal direction. The supporting frame comprises a left longitudinal frame, a right longitudinal frame and a lifting table, the left longitudinal frame and the right longitudinal frame are arranged on the two transverse sides of the outer protruding end of the boss respectively, a left alignment plane is arranged on the outer side of the left longitudinal frame, a right alignment plane is arranged on the outer side of the right longitudinal frame, the left longitudinal frame and the right longitudinal frame are connected in a telescopic mode, and the distance from the left alignment plane to the right alignment plane is adjustable. At least three lifting tables are arranged on the left longitudinal frame and the right longitudinal frame, and the lifting tables can ascend upwards or descend downwards to be adjusted to a certain height. According to the utility model, the left longitudinal frame and the right longitudinal frame which are telescopically connected are arranged, so that the distance from the left alignment plane to the right alignment plane is adjustable, and the width is adjusted to adapt to sheet metal electric boxes of different specifications.

Description

Technical Field

[0001] This utility model relates to the field of welding robot technology, specifically to a sheet metal electrical box welding robot, and in particular to a robot system capable of efficiently and with high quality completing welding operations for sheet metal electrical boxes of various specifications. Background Technology

[0002] With the rapid development of industrial automation, welding robots are increasingly widely used in manufacturing. However, in the field of sheet metal electrical box welding, traditional welding methods often suffer from slow welding speed, unstable welding quality, and require a significant amount of time for manual weld grinding, resulting in low overall production efficiency. To address this, technicians have applied welding robots to sheet metal electrical boxes. However, when faced with various sizes of sheet metal electrical boxes, typical welding robot systems often require complex adjustments and settings, severely impacting processing efficiency. Therefore, developing a welding robot solution that can support multiple sizes of sheet metal electrical boxes is particularly important. Utility Model Content

[0003] The purpose of this invention is to address the above-mentioned problems by providing a sheet metal electrical box welding robot system that can adapt to different widths and heights.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A sheet metal electrical box welding robot system includes a welding robot and a fixture assembly. The welding robot includes a robot body and a welding device, the welding device being mounted on the welding robot, and the welding robot being arranged on one longitudinal side of the fixture assembly. The fixture assembly includes a boss and a support frame. The boss protrudes longitudinally. The support frame includes a left longitudinal frame, a right longitudinal frame, and a lifting platform. The left and right longitudinal frames are respectively arranged on the transverse sides of the protruding end of the boss. The outer side of the left longitudinal frame is provided with a left alignment plane, and the outer side of the right longitudinal frame is provided with a right alignment plane. The left and right longitudinal frames are telescopically connected, so that the distance between their left and right alignment planes is adjustable, for example, the left and right longitudinal frames can be telescopically extended by 5cm or 10cm respectively. At least three lifting platforms are arranged on the left and right longitudinal frames, and the lifting platforms can be raised or lowered to adjust a certain height, for example, 3cm or 5cm.

[0006] Alternatively, the left or right longitudinal frame can be directly arranged on the boss, and the other longitudinal frame can be movably arranged with a telescopic connection. Or, the support frame also includes a crossbeam, with the left and right longitudinal frames arranged at the left and right ends of the crossbeam, respectively; in this case, the left end of the crossbeam is telescopically connected to the left longitudinal frame, and / or, the right end of the crossbeam is telescopically connected to the right longitudinal frame.

[0007] The lateral thickness of the left and right longitudinal frames can be set to be relatively long, and the left and right ends of the crossbeam can be telescopically connected to the left and right longitudinal frames. Alternatively, the support frame also includes a telescopic beam and a locking bolt kit; in this case, the left end of the crossbeam is telescopically connected to the right end of telescopic beam I, and is equipped with locking bolt kit I for locking or loosening, and the left end of telescopic beam I is connected to the inner side of the left longitudinal frame; the right end of the crossbeam is telescopically connected to the left end of telescopic beam II, and is equipped with locking bolt kit II for locking or loosening, and the right end of telescopic beam II is connected to the inner side of the right longitudinal frame.

[0008] The lifting platform is connected using existing bolt kits or an existing elastic press-locking structure. For example, the lifting platform includes a lifting bolt kit, which is threaded to the left or right longitudinal frame, and the lifting bolt kit is arranged vertically along its axis.

[0009] The boss can be a one-piece molded structure; or, the boss includes a platform and a column, with a platform at the upper end of the column, and the platform is arranged longitudinally outward to accommodate the support frame.

[0010] As mentioned above, the welding robot system is equipped with a telescopically connected left and right longitudinal frame, making the distance between the left and right alignment planes adjustable so that the width can be adjusted to adapt to different sizes of sheet metal electrical boxes; at least three lifting platforms are arranged on the left and right longitudinal frames so that the height can be adjusted to adapt to the sheet metal electrical boxes.

[0011] Based on the aforementioned solution, in an improved solution, in order to adapt to the rectangular structure of the sheet metal electrical box in the welding robot system, the extension direction of the left longitudinal frame and the extension beam I is perpendicular to the left alignment plane, and the extension direction of the right longitudinal frame and the extension beam II is perpendicular to the right alignment plane.

[0012] To ensure secure locking and limit the telescopic length to prevent dislodgement, the left end of the crossbeam and the right end of the telescopic beam I are axially slidably fitted together. The left end of the crossbeam has a radially penetrating and axially extending inner slot I, and the right end of the telescopic beam I has a radially penetrating and axially extending outer slot I. Locking bolt assembly I is arranged within the outer slot I and the inner slot I. Similarly, the right end of the crossbeam and the left end of the telescopic beam II are axially slidably fitted together. The right end of the crossbeam has a radially penetrating and axially extending inner slot II, and the left end of the telescopic beam II has a radially penetrating and axially extending outer slot II. Locking bolt assembly II is arranged within the outer slot II and the inner slot II. To improve alignment and limiting effects, the longitudinal outer end of the left longitudinal frame or the longitudinal outer end of the right longitudinal frame is provided with an outer alignment surface to align and limit the left and right alignment planes.

[0013] Based on the aforementioned solution, in an improved solution, the lifting platform of the welding robot system includes a top platform, and the top of the lifting bolt assembly is provided with a top platform, which makes the top support area larger and improves stability.

[0014] Based on the aforementioned solution, in an improved version, the support frame of the welding robot system further includes magnetic blocks. The left longitudinal frame is a metal square tube, angle plate, or H-shaped plate, with magnetic blocks symmetrically arranged at both ends of the left longitudinal frame; the right longitudinal frame is also a metal square tube, angle plate, or H-shaped plate, with magnetic blocks symmetrically arranged at both ends of the right longitudinal frame. Thus, when aligning with either the left or right aligned planes, magnetic attraction is used for fixation.

[0015] Based on the aforementioned solution, in an improved version, the boss of the welding robot system further includes a base. The base has at least two sets of through-holes, which are evenly distributed in an array along the transverse and / or longitudinal direction. The lower end of the vertical column can be bolted to each set of holes. This achieves an adjustable installation position.

[0016] Based on the aforementioned solution, in an improved version, the boss of the welding robot system also includes foot pads. At least three foot pads are provided around the bottom of the base, creating installation space for mounting the vertical column. To adjust the platform support connection position, the boss also includes an inclined column. An inclined column is provided at the upper end of the vertical column, with the upper end of the inclined column inclined outwards longitudinally. A platform is provided at the upper end of the inclined column; the inclined column is used to connect and support the middle position of the platform, improving connection stability.

[0017] By adopting the above technical solution, this utility model has the following beneficial effects:

[0018] This utility model discloses a sheet metal electrical box welding robot system, which is equipped with a telescopically connected left and right longitudinal frame, so that the distance between the left and right alignment planes is adjustable to adjust the width to adapt to sheet metal electrical boxes of different specifications; at least 3 lifting platforms are arranged on the left and right longitudinal frames to adjust the height to adapt to the sheet metal electrical boxes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the usage state structure of Example 1 of this utility model. Figure 2 yes Figure 1 Another perspective structural diagram. Figure 3 yes Figure 1 The internal structure diagram of the fixture assembly and sheet metal electrical box in the longitudinal and vertical planes. Figure 4 yes Figure 1 The internal structure diagram of the fixture assembly and sheet metal electrical box in the horizontal and vertical planes. Figure 5 yes Figure 1 A schematic diagram of the fixture assembly structure. Figure 6 yes Figure 5 Front view. Figure 7 yes Figure 5 Top view. Figure 8 yes Figure 5A schematic diagram of the exploded structure of the support frame. Figure 9 yes Figure 8 A schematic diagram of the left longitudinal frame and telescopic beam I structure. Figure 10 yes Figure 9 Another perspective structural diagram. Figure 11 yes Figure 8 Schematic diagram of the right longitudinal frame and telescopic beam II. Figure 12 yes Figure 11 Another perspective structural diagram. Figure 13 yes Figure 8 A schematic diagram of the beam structure. Figure 14 yes Figure 1 A schematic diagram of the foot pad structure.

[0020] Figure 15 This is a schematic diagram of the internal structure of the left longitudinal frame and telescopic beam I in Example 2 of this utility model. Figure 16 yes Figure 15 Side view. Figure 17 This is a schematic diagram of the internal structure of the right longitudinal frame and telescopic beam II in Example 2 of this utility model.

[0021] In the attached diagram, 1 is the robot body, 2 is the welding device, 3 is the boss, 4 is the alignment system, 5 is the laser control system host, 6 is the path planning system host, 7 is the base, and 8 is the electrical box. Detailed Implementation

[0022] Example 1

[0023] See Figures 1-14 The sheet metal electrical box welding robot system of this embodiment 1 has a basic scheme and an improved scheme. The following will use a preferred example of the combination of preferred features as an example for explanation.

[0024] The sheet metal electrical box welding robot system includes a welding robot and a fixture assembly. The welding robot includes a robot body 1 and a welding device 2, which is mounted on the welding robot 1. The welding robot 1 is arranged on one longitudinal side of the fixture assembly. The fixture assembly includes a boss 3 and a support frame. The boss 3 protrudes outward along the longitudinal direction. The support frame includes a left longitudinal frame 34, a right longitudinal frame 37, and a lifting platform. The left longitudinal frame 34 and the right longitudinal frame 37 are respectively arranged on the transverse sides of the protruding end of the boss. The outer side of the left longitudinal frame 34 is provided with a left alignment plane, and the outer side of the right longitudinal frame 37 is provided with a right alignment plane. The left longitudinal frame 34 and the right longitudinal frame 37 are telescopically connected, so that the distance between their left and right alignment planes is adjustable. At least three lifting platforms are arranged on the left longitudinal frame 34 and the right longitudinal frame 37, and the lifting platforms can be raised or lowered to adjust a certain height.

[0025] The welding robot uses existing technologies, such as the Chinese invention patent application "Integrated Laser Welding Robot System, Control Method and Storage Medium, Publication No. CN118527813A" and the Chinese invention patent "Automatic Welding Method of Dual-Station Power Distribution Box Robot Welding Workstation, Publication No. CN113199492B", etc. This application only briefly describes their performance; this application improves its fixture, which will be described in detail below.

[0026] The left longitudinal frame 34 or the right longitudinal frame 37 can be directly welded or bolted to the boss, and the other longitudinal frame can be movably arranged for telescopic connection. Alternatively, the support frame also includes a crossbeam 36, with the left longitudinal frame 34 and the right longitudinal frame 37 arranged at the left and right ends of the crossbeam 36, respectively; in this case, in one embodiment, the left end of the crossbeam is telescopically connected to the left longitudinal frame, in another embodiment, the right end of the crossbeam is telescopically connected to the right longitudinal frame, and in yet another embodiment, the left end of the crossbeam is telescopically connected to the left longitudinal frame and the right end of the crossbeam is telescopically connected to the right longitudinal frame.

[0027] The left longitudinal frame 34 and right longitudinal frame 37 can be set to have a relatively long transverse thickness, and the left and right ends of the crossbeam 36 can be telescopically connected to the left and right longitudinal frames. Alternatively, the support frame also includes a telescopic beam and a locking bolt assembly 38; in this case, the left end of the crossbeam 36 is telescopically connected to the right end of the telescopic beam I 341, and is equipped with a locking bolt assembly I for locking or loosening, and the left end of the telescopic beam I is connected to the inner side of the left longitudinal frame 34; the right end of the crossbeam 36 is telescopically connected to the left end of the telescopic beam II 371, and is equipped with a locking bolt assembly II for locking or loosening, and the right end of the telescopic beam II is connected to the inner side of the right longitudinal frame 37. Preferably, the telescopic beam I and the telescopic beam II have the same structure, both being square tubes; the locking bolt assembly I and the locking bolt assembly II have the same structure, both being wing bolts and wing nuts, which can be tightened or loosened.

[0028] Three lifting platforms are used, two of which are installed on the left longitudinal frame and one on the right longitudinal frame. The lifting platforms are connected using existing bolt kits or existing elastic press-locking structures. For example, the lifting platform includes a lifting bolt kit 35, specifically an internal hex bolt and nut. The lifting bolt kit 35 is threaded to the left longitudinal frame 34 or the right longitudinal frame 37. The lifting bolt kit is arranged vertically along its axis. Tightening or loosening the bolt allows for lifting and lowering.

[0029] The boss can be a one-piece molded structure. Alternatively, the boss includes a platform 33 and a vertical column 31, with the platform 33 located at the upper end of the vertical column 31. The platform 33 is arranged longitudinally outward to accommodate the support frame.

[0030] When in use, adjust the distance between the left and right longitudinal frames, adjust the height of the lifting platform, attach the sheet metal electrical box cover (without the cover plate) to the lifting platform and align it to the left and right alignment planes, and then use a robot to weld it.

[0031] As mentioned above, the welding robot system is equipped with a telescopically connected left and right longitudinal frame, making the distance between the left and right alignment planes adjustable so that the width can be adjusted to adapt to different sizes of sheet metal electrical boxes; at least three lifting platforms are arranged on the left and right longitudinal frames so that the height can be adjusted to adapt to the sheet metal electrical boxes.

[0032] Based on the aforementioned solution, in an improved solution, in order to adapt to the rectangular structure of the sheet metal electrical box in the welding robot system, the extension direction of the left longitudinal frame and the extension beam I is perpendicular to the left alignment plane, and the extension direction of the right longitudinal frame and the extension beam II is perpendicular to the right alignment plane.

[0033] To secure the beam and limit its extension length to prevent it from coming loose, the left end of the crossbeam can be axially slidably fitted onto the right end of the telescopic beam I. The left end of the crossbeam has a radially penetrating and axially extending inner slot I, and the right end of the telescopic beam I has a radially penetrating and axially extending outer slot I 342. Locking bolt assembly I is arranged within these outer and inner slots I. Similarly, the right end of the crossbeam can be axially slidably fitted onto the left end of the telescopic beam II. The right end of the crossbeam has a radially penetrating and axially extending inner slot II, and the left end of the telescopic beam II has a radially penetrating and axially extending outer slot II 372. Locking bolt assembly II is arranged within these outer and inner slots II. As shown in the figure, inner slots I and II have the same structure, both being inner slots 361. Relative to the bolt connection to the outer tube and its tight compression to the inner tube fixing structure, the bolt passing through the slot structure limits the extension length. To improve alignment and limiting effects, the outer longitudinal end of the left longitudinal frame or the outer longitudinal end of the right longitudinal frame is provided with an outer alignment surface, which is used to align and limit the left and right alignment planes.

[0034] Based on the aforementioned solution, in an improved solution, the lifting platform of the welding robot system includes a top platform. The top of the lifting bolt assembly is provided with a top platform. As shown in the figure, the top surface of the internal hexagonal bolt is flat, which makes the top support area larger and improves stability.

[0035] Based on the aforementioned solution, in an improved version, the boss of the welding robot system further includes a base. The base has at least two sets of vertically penetrating mounting holes, evenly distributed in an array along the transverse and / or longitudinal direction. The lower end of the vertical column can be bolted to each set of mounting holes. As shown in the figure, the bottom flange of the vertical column has six mounting holes, which are bolted to the corresponding mounting holes. This allows for detachable and adjustable mounting positions.

[0036] Based on the aforementioned solution, in an improved version, the boss of the welding robot system further includes foot pads 71. At least three foot pads 71 ​​are provided around the bottom of the base 7. As shown in the figure, four foot pads are used as an example to create installation space for the vertical column. The base adopts a square frame structure to allow for a fixed connection between the foot pads and the upper and lower plates of the square frame, improving stability, and to provide space for the bolt connection of the fixed vertical column between the upper and lower plates. To adjust the platform support connection position, the boss also includes inclined columns 32. An inclined column 32 is welded to the upper end of the vertical column 31, with the upper end of the inclined column 32 arranged longitudinally outwards. A platform 33 is welded to the upper end of the inclined column 32; the inclined column connects and supports in the middle of the platform, improving connection stability.

[0037] As described above, this application develops a sheet metal electrical box welding robot solution capable of supporting automated operations and flexible manufacturing processes for various specifications. It includes a robot body, a welding device, a fixture structure for fixing the electrical box, an alignment system, a control system, and a path planning system. The robot body adopts an advanced industrial robot body equipped with a multi-degree-of-freedom robot arm. It features high speed, high precision, and high stability, and can meet the requirements of sheet metal electrical box welding. The welding device includes a laser welding joint, a welding wire feeder, a welding power source, and a welding control unit, employing high-efficiency, high-quality welding technology to ensure welding quality. The control system uses advanced control algorithms to achieve precise control of the robot welding process, improving welding efficiency and stability. The path planning system automatically plans the welding path based on the characteristics of the workpiece (sheet metal electrical box) and welding requirements, ensuring a smooth and efficient welding process. The alignment system uses a laser head to align the sheet metal electrical box welding path before and after the welding process, achieving precise positioning of the welding position and real-time monitoring of welding quality. The fixture structure (clamping assembly) for fixing the electrical box is designed with adjustable clamps, capable of supporting the fixing of electrical boxes of various specifications, realizing flexible manufacturing. The flexible clamping system, which includes adjustable clamping components and connecting mechanisms, can adapt to the fixing requirements of sheet metal electrical boxes of different sizes, thereby improving the adaptability and flexibility of the robot.

[0038] Robot installation and debugging: Install the robot body in the designated location and perform initialization and calibration. Set welding parameters and path planning according to the workpiece characteristics and welding requirements.

[0039] Welding equipment preparation: Check the working status of the welding head, welding power source, and welding control unit to ensure the equipment is operating normally. Select appropriate welding materials and welding processes.

[0040] System alignment and debugging: Start the alignment system, adjust the alignment angle, and ensure that the laser head can be clearly aligned with the welding path of the sheet metal electrical box before and after the welding process.

[0041] Flexible fixture adjustment: Adjust the size and position of the flexible fixture according to the specifications and model of the sheet metal electrical box to be welded to ensure that the workpiece can be stably fixed.

[0042] Welding process monitoring: Once the welding program is started, the welding process is monitored in real time via a vision system. If any abnormalities are detected, the machine is stopped immediately for inspection and the welding parameters are adjusted.

[0043] Post-welding treatment: After welding, perform simple cleaning, slag removal, and grinding of the weld to ensure that the weld joint meets the requirements.

[0044] This sheet metal electrical box welding robot solution includes a robot body, welding device, alignment system, control system, and flexible fixture system. The robot body features high speed, high precision, and high stability. The welding device employs high-efficiency, high-quality welding technology. The alignment system uses a laser head to align the welding path of the sheet metal electrical box before and after the welding process. The control system utilizes advanced control algorithms and path planning systems. The flexible fixture system can adapt to the fixing requirements of sheet metal electrical boxes of different specifications and models. It has the following advantages.

[0045] 1. Improved Welding Efficiency: Utilizing a high-speed robot and efficient welding technology significantly shortens the welding cycle. 2. Guaranteed Welding Quality: Real-time monitoring and adjustment of the welding process ensure consistent welding quality and reduce the time spent on manual weld grinding. 3. Flexible Manufacturing: Adjustable fixture design supports welding operations for various electrical boxes of different specifications, improving production flexibility. 4. Reduced Manual Intervention: Automated welding reduces manual intervention, enabling continuous operation under complex conditions and achieving safety management goals. 5. Reduced Production Costs: Optimizing the welding process from the source reduces overall welding costs and labor intensity.

[0046] Example 2

[0047] Based on Example 1, Example 2 features a magnetically assisted fixing structure, as detailed below:

[0048] like Figures 15-17 As shown, the support frame of the welding robot system in this embodiment 2 also includes magnet blocks. The left longitudinal frame is a metal square tube, angle plate, or H-shaped plate, such as a square steel pipe, and magnet blocks 340 are symmetrically arranged at both ends of the longitudinal direction of the left longitudinal frame 34. The right longitudinal frame is a metal square tube, angle plate, or H-shaped plate, such as a square steel pipe, and magnet blocks 370 are symmetrically arranged at both ends of the longitudinal direction of the right longitudinal frame 37. Preferably, the magnet blocks 340 and 370 have the same structure. Thus, when the left-aligned plane or the right-aligned plane is aligned, it is fixed by magnetic attraction.

[0049] Example 3

[0050] The sheet metal electrical box welding robot system in Embodiments 1 and 2 includes a fixture component scheme for the sheet metal electrical box welding robot system, which is briefly described below. For specific application examples and feature combinations, please refer to Embodiments 1 and 2 above.

[0051] See Figures 1-17 This embodiment 3 discloses a fixture assembly for a sheet metal electrical box welding robot system, including a boss and a support frame. The boss protrudes longitudinally. The support frame includes a left longitudinal frame, a right longitudinal frame, and lifting platforms. The left and right longitudinal frames are respectively arranged on the transverse sides of the protruding end of the boss. The outer side of the left longitudinal frame has a left alignment plane, and the outer side of the right longitudinal frame has a right alignment plane. The left and right longitudinal frames are telescopically connected, making the distance between their left and right alignment planes adjustable. At least three lifting platforms are arranged on the left and right longitudinal frames, and these lifting platforms can be raised or lowered to adjust their height. The telescopically connected left and right longitudinal frames allow for adjustable width to accommodate sheet metal electrical boxes of different specifications. At least three lifting platforms are arranged on the left and right longitudinal frames to adjust their height to accommodate sheet metal electrical boxes.

[0052] It should be noted that the examples of the above embodiments can preferably be combined with one or more of each other according to actual needs, and the accompanying drawings of multiple examples adopt a set of combined technical features, which will not be described in detail here.

[0053] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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.

[0054] The above description is a detailed explanation and illustration of the preferred embodiments of the present utility model. However, these descriptions are not intended to limit the scope of protection claimed by the present utility model. All equivalent changes or modifications made under the technical teachings of the present utility model shall fall within the patent protection scope covered by the present utility model.

Claims

1. A fixture assembly for a sheet metal electrical box welding robot system, characterized in that: The device includes a boss and a support frame; the boss protrudes outward along the longitudinal direction; the support frame includes a left longitudinal frame, a right longitudinal frame, and a lifting platform, the left and right longitudinal frames are respectively arranged on the transverse sides of the protruding end of the boss, the outer side of the left longitudinal frame is provided with a left alignment plane, the outer side of the right longitudinal frame is provided with a right alignment plane, the left and right longitudinal frames are telescopically connected, so that the distance between their left and right alignment planes is adjustable; at least 3 lifting platforms are arranged on the left and right longitudinal frames, and the lifting platforms can be raised or lowered to adjust a certain height.

2. The fixture assembly of a sheet metal electrical box welding robot system according to claim 1, characterized in that: The support frame also includes a crossbeam, a left longitudinal frame and a right longitudinal frame arranged at the left and right ends of the crossbeam respectively; wherein the left end of the crossbeam is telescopically connected to the left longitudinal frame, and / or the right end of the crossbeam is telescopically connected to the right longitudinal frame.

3. The fixture assembly of a sheet metal electrical box welding robot system according to claim 2, characterized in that: The support frame also includes a telescopic beam and a locking bolt assembly; the left end of the crossbeam is telescopically connected to the right end of the telescopic beam I, and is equipped with a locking bolt assembly I for locking or loosening, and the left end of the telescopic beam I is connected to the inner side of the left longitudinal frame; the right end of the crossbeam is telescopically connected to the left end of the telescopic beam II, and is equipped with a locking bolt assembly II for locking or loosening, and the right end of the telescopic beam II is connected to the inner side of the right longitudinal frame.

4. The fixture assembly of a sheet metal electrical box welding robot system according to claim 3, characterized in that: The extension and retraction directions of the left longitudinal frame and the telescopic beam I are perpendicular to the left alignment plane, and the extension and retraction directions of the right longitudinal frame and the telescopic beam II are perpendicular to the right alignment plane. The left end of the crossbeam and the right end of the telescopic beam I can be slidably connected axially. The left end of the crossbeam has a radially penetrating and axially extending inner slot I, and the right end of the telescopic beam I has a radially penetrating and axially extending outer slot I. Locking bolt assembly I is arranged within the outer slot I and the inner slot I. The right end of the crossbeam and the left end of the telescopic beam II can be slidably connected axially. The right end of the crossbeam has a radially penetrating and axially extending inner slot II, and the left end of the telescopic beam II has a radially penetrating and axially extending outer slot II. Locking bolt assembly II is arranged within the outer slot II and the inner slot II.

5. The fixture assembly of a sheet metal electrical box welding robot system according to claim 1, characterized in that: The lifting platform includes a top platform and a lifting bolt assembly. The lifting bolt assembly is threadedly connected to the left or right longitudinal frame. The axial direction of the lifting bolt assembly is arranged vertically, and the top platform is provided at the top of the lifting bolt assembly.

6. The fixture assembly of a sheet metal electrical box welding robot system according to claim 1, characterized in that: The support frame also includes magnet blocks. The left longitudinal frame is a metal square tube, corner plate or H-shaped plate, and magnet blocks are symmetrically arranged at both ends of the longitudinal direction of the left longitudinal frame. The right longitudinal frame is a metal square tube, corner plate or H-shaped plate, and magnet blocks are symmetrically arranged at both ends of the longitudinal direction of the right longitudinal frame.

7. The fixture assembly of a sheet metal electrical box welding robot system according to claim 1, characterized in that: The boss includes a platform and a vertical column. The upper end of the vertical column is provided with a platform, which is arranged longitudinally outward to accommodate a support frame.

8. The fixture assembly of a sheet metal electrical box welding robot system according to claim 7, characterized in that: The boss also includes a base, on which at least two sets of through holes are provided. The at least two sets of holes are evenly distributed in an array along the horizontal and / or vertical directions, and the lower end of the vertical column can be bolted to each set of holes.

9. The fixture assembly of a sheet metal electrical box welding robot system according to claim 7, characterized in that: The boss also includes foot pads, and at least three foot pads are provided around the bottom of the base; the boss also includes inclined columns, and an inclined column is provided at the upper end of the vertical column, the upper end of the inclined column is arranged longitudinally outward, and a platform is provided at the upper end of the inclined column.

10. A sheet metal electrical box welding robot system, comprising a welding robot and a fixture assembly; the welding robot includes a robot body and a welding device, the welding device being mounted on the welding robot, and the welding robot being arranged on one longitudinal side of the fixture assembly; characterized in that: The clamping assembly is the clamping assembly as described in any one of claims 1-9.

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