Workstation for welding prefabricated pipelines or embedded parts

Abstract

The utility model provides a work station for welding prefabricated pipelines or embedded parts. The work station comprises a base plate, wherein composite trundles are arranged at the bottom of the base plate; the stand column is located on the chassis, and the control cabinet body and the machining table are located on the two sides of the stand column. The single cantilever is located at the top of the stand column, the robot is arranged on a mounting plate at the bottom of the single cantilever, and the robot is connected with a welding gun acting on a prefabricated pipeline or an embedded part; the wire feeder is arranged on the single cantilever, and the wire feeder and the robot are arranged in a staggered mode; the robot moves to drive a welding gun on the robot to be close to or away from the machining table. The machining table is detachably connected to the stand columns, and supporting legs used for supporting the machining table are detachably connected to the bottom of the machining table. One-stop structural arrangement is achieved, meanwhile, the robot is hung upside down on the single cantilever, the machining coverage range of the robot is widened, and the overall occupied area is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of robot electric welding, in particular to a workstation for welding prefabricated pipelines or embedded parts. Background Art

[0002] Most of the workstations in the prior art have the following problems:

[0003] First, the single functional design makes it difficult to meet the needs of multiple processing technologies in certain scenarios, especially since the equipment is not easy to replace, which increases costs.

[0004] Secondly, when using industrial robots, it is necessary to design protective fences for safety reasons to prevent people from entering the robot's working area during work, which makes it impossible for people and robots to work together, limiting the use scenarios of mobile workstations.

[0005] Thirdly, the robot base, workpiece area, and process equipment are all placed on the table, resulting in a larger table area, which directly leads to a larger overall size and weight of the mobile workstation, affecting the flexibility of movement. The robot is placed on one side of the table, which fails to fully utilize the robot's workspace and limits the robot's working ability;

[0006] Finally, the mobile method uses ordinary casters or electric wheels, which fail to achieve stable fixation after reaching the working position. The inertia force of industrial robots is large when they move. If the fixation is unstable, the base will shake when the robot runs at full speed, affecting the processing effect. Utility Model Content

[0007] The purpose of the utility model is to provide a workstation for welding prefabricated pipes or embedded parts, realizing a one-stop structural setting. At the same time, the robot is hung upside down on a single cantilever, which improves the robot's processing coverage and reduces the overall floor space. At the same time, the oblique symmetric distribution of the cabinet unit and the single cantilever plus the robot unit can ensure that the center of gravity is on the central column, making the robot processing more stable and reliable.

[0008] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical solutions.

[0009] Workstation for welding prefabricated pipes or embedded parts, including:

[0010] A chassis with composite casters at the bottom;

[0011] The column located on the chassis, and the control cabinet and processing table located on both sides of the column;

[0012] It also includes a single cantilever located at the top of the column, a robot on a mounting plate at the bottom of the single cantilever, the robot being connected to a welding gun acting on the prefabricated pipe or embedded parts;

[0013] It also includes a wire feeder disposed on the single cantilever and staggered with the robot;

[0014] The movement of the robot drives the welding gun on the robot to move closer to or away from the processing table;

[0015] The processing table is detachably connected to the column, and the bottom of the processing table is detachably connected with legs for supporting the processing table.

[0016] Furthermore, the column is provided with a guide rail and a slider moving along the guide rail.

[0017] Furthermore, it also includes a fixed tooling connected to the slider and arranged toward the workbench.

[0018] Furthermore, the column comprises a square steel sleeve and a built-in square steel column with a lifting mechanism at the bottom, and the built-in square steel column and the square steel sleeve are both provided with a plurality of round holes for inserting pins.

[0019] Furthermore, the square steel casing is provided with a cable through hole for controlling the electrical connection between the power supply in the cabinet and the external device.

[0020] Furthermore, a cross bar is provided on the single cantilever, and a pulley hook for cable suspension is connected to the cross bar.

[0021] Furthermore, the control cabinet is a frame structure, and a gas shielded welding gas cylinder for supplying gas to the welding gun is provided on the side of the control cabinet.

[0022] Furthermore, the control cabinet is provided with a plurality of power mechanisms, power supply mechanisms, signal transfer interfaces and control switches.

[0023] Furthermore, a bracket assembly is provided on the top of the control cabinet, and the bracket assembly forms a hanging portion or an assembly portion.

[0024] Furthermore, there are a plurality of composite casters, and an assembly gap is formed between the composite casters, and a forklift fork hole is provided in the assembly gap.

[0025] The beneficial effects of the utility model are as follows:

[0026] In the utility model, a column plus single cantilever mechanism is adopted, and the processing robot is inverted on the single cantilever, which improves the robot processing coverage and reduces the overall floor space. At the same time, the oblique symmetric distribution of the cabinet unit and the single cantilever plus robot unit can ensure that the center of gravity is on the central column, making the robot more stable and reliable during processing.

[0027] In the utility model, the processing table and the cabinet table are divided into two parts by the middle column. The cabinet table can store the workpieces to be processed and replacement tools, tooling, etc., while the processing table is under the robot and is only responsible for processing applications.

[0028] A collaborative robot is selected in the utility model. The robot is light and easy to install, reduces the setting of safety guardrails, is more suitable for human-machine collaborative work on project sites, can quickly configure workstations, and the manual teaching operation of the collaborative robot is simpler and easier to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a workstation for welding prefabricated pipes or embedded parts provided by the utility model;

[0030] Figure 2 This is one of the structural schematic diagrams of the control cabinet provided by the utility model;

[0031] Figure 3 The second structural diagram of the control cabinet provided by the utility model;

[0032] Figure 4 A schematic diagram of the structure of the processing table provided by the utility model;

[0033] Figure 5 A schematic diagram of the structure of the column provided by the utility model;

[0034] In the figure:

[0035] 1. Chassis; 2. Column; 21. Square steel casing; 22. Built-in square steel column; 4. Gas shielded welding gas cylinder; 5. Control cabinet; 6. Processing table; 61. Fixed plate; 62. Processing plate; 63. Hinge mechanism; 7. Robot; 8. Wire feeder; 9. Single cantilever; 10. Welding gun; 11. Outrigger; 12. Guide rail; 13. Slider; 14. Crossbar; 15. Composite caster; 16. Forklift fork hole; 17. Roller type fixed tooling; 18. Shade plate. DETAILED DESCRIPTION

[0036] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0037] See attached Figure 1-5 As shown, the workstation for welding prefabricated pipes or embedded parts in this embodiment includes a chassis 1 with a composite caster 13 at the bottom. At this time, the chassis 1 is formed by a processing warehouse, and then a column 2 is added to the chassis, and a supporting assembly is formed by the column 2. Then, a control cabinet 5 and a processing table 6 are arranged on both sides of the column 2; at this time, independent spaces are formed on both sides.

[0038] In order to assemble the robot 7, a single cantilever 9 is added to the column. The single cantilever 9 enables the robot to form a downward working area and range. Specifically, a mounting plate is added to the bottom of the single cantilever 9, and then one end of the robot is fixed on the mounting plate. The robot is composed of several sections, and the robot is controlled to form a working direction toward the processing table. Specifically, in order to complete welding, a welding gun 10 for prefabricated pipes or embedded parts is connected to the robot 7. Of course, at this time, other processing equipment can be used to replace the welding gun to complete the corresponding work, and it is not limited to the welding gun.

[0039] Of course, it also includes a wire feeder 8 arranged on the single cantilever 9 and staggered with the robot 7. The movement of the robot 7 drives the welding gun on the robot 7 to move closer to or away from the processing table 6. In this embodiment, the wire feeder here is mainly used to feed welding wire, which is a metal wire that needs to be burned by an arc and then fused with the workpiece base material during welding. Therefore, the wire feeder is an indispensable process equipment for arc welding, submerged arc welding and other welding forms. In this embodiment, the equipment that can be suspended on the single cantilever 9 also includes a delivery pipe for glue during glue coating and signal lines and power lines required for other process flows, and the lines are suspended, which is not easy to be entangled.

[0040] In this embodiment, the robot uses a welding gun to weld along the welding track of the pipe or embedded parts. The robot is mainly a welding collaborative robot, which can interact with workers on site. At this time, the worker can move the robot and welding gun along the welding track. It can also move to the workpiece on the processing table to weld at different positions.

[0041] In this embodiment, the relative positions of the robot and the wire feeder can be adjusted, and a plurality of holes for installing the wire feeder can be set on the single cantilever.

[0042] For ease of disassembly, the processing table 6 is detachably connected to the column 2, and the bottom of the processing table 6 is detachably connected with a leg 11 for supporting the processing table 6. During transportation, the processing table and the leg can be disassembled and then transported by the composite casters on the chassis.

[0043] The specific structure is introduced below.

[0044] First, about the uprights that form the support.

[0045] In this embodiment, the column is fixedly connected to the chassis.

[0046] In order to clamp from the side, a guide rail 12 and a slider 13 moving along the guide rail 12 may be provided on the column 1, and then the slider 13 is used to connect the clamping fixture to complete the clamping and fixing of the embedded part or the prefabricated pipe.

[0047] Specifically, the clamp can be a conventional clamp with clamping on both sides to clamp the embedded parts, while for prefabricated pipes, a roller-type fixing fixture is used. At this time, the size of the clamping cavity is adjusted by the movement of the slider, or the fixing position of the roller-type fixing fixture is adjusted.

[0048] In this embodiment, in order to adjust the height of the welding robot and the single cantilever, the column is set to a height-adjustable structure. Specifically, the column 2 includes a square steel casing 21 and a built-in square steel column 22 with a lifting mechanism at the bottom. The built-in square steel column 22 and the square steel casing 21 are both provided with a number of round holes for the insertion of pins. In this embodiment, the lifting can also be adjusted manually. After the height is adjusted before work, there are a number of round holes on the square steel casing for the insertion of pins, and a built-in fixed square steel column.

[0049] In order to facilitate the electrical connection between the electrical equipment and the power supply in the control cabinet, the square steel casing 21 is provided with a cable through hole (not shown in the figure) for the electrical connection between the power supply in the control cabinet 5 and the external device. At this time, the cable through hole is staggered with the round hole, and the cable through hole can also be set on the built-in square steel column.

[0050] Secondly, regarding the setting of single cantilever and control cabinet.

[0051] In this embodiment, a cross bar 12 is provided on the single cantilever 9. At this time, in order to avoid the cables from being entangled with each other, a pulley hook for hanging the cables can be connected to the cross bar 14. The cables are hung up by the pulley hook to reduce the entanglement caused by accumulation.

[0052] In this embodiment, when the single cantilever 9 is provided, it is directly provided on the top of the square steel column and is fixedly connected.

[0053] In order to facilitate assembly, the control cabinet 5 is a frame structure, and a gas shielded welding gas cylinder 4 for supplying gas to the welding gun 10 is provided on the side of the control cabinet 5 .

[0054] In this embodiment, a welding power supply and a gas shielded welding protective gas cylinder can be set in the control cabinet. The frame structure of the control cabinet can accommodate various equipment in the belly. For example, in this embodiment, a welding power supply can be placed, and a robot control cabinet, communication equipment, etc. can also be placed. There are through holes on the top table of the cabinet for various electrical pipelines to pass through and connect to external equipment. The table can be used to place workpieces and tools to be processed. The front of the cabinet is designed with power input, robot power, and signal cable adapters, and is designed with various knob switches. The cabinet can hang a robot teaching pendant, and a bracket is fixed on the side of the cabinet to hang other equipment. In this example, a welding gas cylinder is fixed.

[0055] In order to facilitate power supply of various devices, the control cabinet 5 is provided with a plurality of power mechanisms, power supply mechanisms, signal transfer interfaces and control switches.

[0056] In order to install the support, a bracket assembly is provided on the top of the control cabinet, and the bracket assembly forms a hanging part or an assembly part.

[0057] Again, composite casters.

[0058] In this embodiment, there are several composite casters 15, and an assembly gap is formed between the composite casters 15. The assembly gap is provided with a forklift fork hole 16. At this time, the entire workstation can be moved by a forklift.

[0059] In this embodiment, the composite caster is a heavy-duty integrated composite caster, that is, the foot cup and the caster are integrated, the foot cup is lifted up when movable, and the four wheels are on the ground. After they are in place, the spline can be rotated to lower the foot cup, so that the entire mobile warehouse is fixed to the ground. The single wheel load can reach 1.5 tons. At the same time, the chassis is designed with a forklift fork hole 16, which can be carried to the working position by an electric forklift.

[0060] Finally, about robots.

[0061] In this embodiment, the robot is hoisted and fixed on the mounting plate on the bottom surface of the single cantilever 9. The mounting plate is designed with a bottom hole according to the model of the collaborative robot and is adapted for installation. A welding gun is installed at the end of the collaborative robot. The welding gun cable can be wound around the robot arm body to the wire feeder fixed on the single cantilever. The welding cable then goes along the column to the table through hole of the fixing or fixture, and is connected to the welding machine power supply and the welding wire barrel. Similarly, the air pipe of the protective gas cylinder can also reach the end of the welding gun along the column and the robot body. The wire feeder can also be fixed on the single cantilever, and the single cantilever can also be fixed with a cross bar plus a pulley hook for hanging the welding gun cable.

[0062] In this embodiment, for example, if it is used for prefabricated pipes, a workpiece fixture is required, and a modular processing table is used at this time. It also includes 4 legs 11, which are used to support the processing table and the components thereon, and the legs 11 are connected to the processing table 6 by threads, and can be quickly disassembled and the legs 11 can be stored in the cabinet for transportation. Specifically, the entire processing table 6 is fixed to the column structure of the workstation. The processing table 6 also includes a hinge mechanism 63 for connecting the fixing plate 61 with the processing plate 62. After removing the 4 legs and pulling out the latch of the hinge mechanism 63, the processing plate can be put down for easy transportation. Mounting holes are designed on the processing plate for fixing various workpiece fixtures. In this embodiment, it is used for fixing round tube workpieces. Conventional roller-type fixing fixtures are used on the upper and lower parts of the round tube, and the fixing fixtures are fixedly connected to the slider of the guide rail slider mechanism, which can match workpieces of different heights and ensure the stability of the clamping of the workpiece. In this embodiment, an accessory shading plate required for welding can also be set outside the processing area formed by the processing table.

[0063] In this embodiment, at the end of the robot, tools and equipment such as welding guns can be replaced, so that multiple devices share a set of mobile workstation bodies. For small-batch production needs, only temporary replacement of tools and process equipment is required to achieve it, rather than requiring an entire production line to be on standby at the construction site.

[0064] Compared with the prior art, this embodiment has the following advantages:

[0065] (1) The mobile workstation's table space is reduced, the flexibility of movement is improved, the investment cost is reduced, and the economy is good. The mobile processing station in this embodiment, on the one hand, moves the robot base to the top cantilever mechanism, and on the other hand, the processing table of the workpiece fixture is designed to be detachable. Compared with the traditional design, it reduces the table area by at least 50% (improves economy) and greatly improves the flexibility of movement. The inverted robot's own working space is also fully utilized, further improving the robot's working ability, such as being able to cover a larger area of ​​workpieces and weld more welds.

[0066] This mobile workstation can be a multi-purpose workstation, which can be compatible with different processes of product processing. Without changing the frame structure, different processing processes can be switched by simply replacing the robot end tool, workpiece fixture, process equipment and controller. For example, the processing of embedded parts products on site in nuclear power projects includes assembly and welding, etc. At the same time, the welding gun is at the end of the robot, and can be moved to a certain extent. At the same time, the workpiece can also be moved on the processing table by using fixtures, etc., so as to perform welding at different positions. If a mobile workstation is designed separately for each process, multiple sets of dedicated workstations are required, and the floor space is several times that of a multifunctional mobile processing warehouse. For the on-site small-batch embedded parts processing, this design similar to a workshop and a production line is obviously not economical. The design of the mobile processing station in this embodiment fully reuses the main structure and main execution equipment of the workstation. It only needs to configure different process tools and consumables according to the processing process, reducing unnecessary investment. It is particularly suitable for small-batch processing on site and rapid production and shipment.

[0067] The mobile workstation is fully movable (composite casters), can be transported by a forklift, can be quickly deployed on site, and can be fixed in place by lowering the foot cups.

[0068] Each component structure is modular in design, and the workbench can be assembled with legs, work surface, and shading plate 18. The work surface can be folded, which makes the space small and the structure compact, which is very suitable for small parts processing on the construction site. The robot controller and process equipment control cabinet are centrally arranged on the cabinet frame at the rear end.

[0069] Good safety. This mobile workstation uses a hoisted collaborative robot. On the one hand, it maximizes the robot's processing space. On the other hand, the collaborative robot can share the processing space with people, without the need for safety fences, making it convenient for personnel to quickly carry out processing operations.

[0070] Good scalability and adjustability. The robot's fixed single cantilever can adjust the height, and the robot's processing table can expand the width and depth. The work surface is designed with mounting holes for different fixtures to fix. For example, in this case, pipe welding rollers can be installed to position the pipe for pipe splicing welding. The workpiece's fixed fixture can follow the slider up and down on the guide rail, and is compatible with workpieces of different heights. There are mounting holes designed on the square steel casing of the column, and different tools can be installed according to production needs.

[0071] For the welding function, special configuration 1 is a detachable light shield (combined type). By installing a shielding cover on the workbench, the dazzling welding light can be effectively shielded during automatic welding, which plays a protective role. Special configuration 2 is that the side of the rear control cabinet is designed with a gas cylinder fixing position, which can be used during gas shielded welding. Special configuration 3 is an integrated mobile welding fume purifier. The layout of the universal dust suction arm of the fume purifier must be misaligned with the robot welding movement space, which plays a role in optimizing the on-site working environment. The gun cleaner can be fixed on the cabinet table to meet the need to clean the welding gun during welding. A laser tracking sensor can also be installed on the robot's end welding gun to realize the weld tracking function, and the controller of the corresponding equipment can be installed on the cabinet table.

[0072] In this embodiment, the chassis can use an automatic mobile chassis (such as AGV) instead of manual push on casters. In order to reduce the cost of mobile workstations and facilitate rapid configuration, the automatic mobile chassis is not used. The lifting column mechanism can use an electric drive mechanism (such as a servo motor acceleration and reduction gear). In this example, it is not used to reduce the dead weight, reduce the complexity of the equipment and quickly deploy. The six-axis collaborative robot will be replaced by other forms of industrial robots (such as rectangular coordinate robots, inverted SCARA robots). In this example, a six-axis collaborative robot is used to improve processing flexibility, such as the processing of curved welds.

[0073] In this embodiment, a column plus single cantilever mechanism is adopted, and the processing robot is inverted on the single cantilever, which increases the robot processing coverage and reduces the overall floor space. At the same time, the oblique symmetric distribution of the cabinet unit and the single cantilever plus robot unit can ensure that the center of gravity is on the central column, making the robot more stable and reliable during processing.

[0074] In this embodiment, the robot is light and easy to install, reducing the need for safety guardrails, making it more suitable for human-machine collaborative work on project sites. Workstations can be quickly configured, and the manual teaching operation of the collaborative robot is simpler and easier to use.

[0075] In this embodiment, the processing table and the cabinet are divided into two parts by the middle column. A table top is formed in the cabinet to store the workpieces to be processed and replacement tools, tooling, etc., while the processing table top is under the robot and is only responsible for processing applications.

[0076] The processing table in this embodiment is designed to be quickly assembled and disassembled and foldable for storage. The processing table and the column structure can be used in conjunction with each other to clamp different workpieces and improve flexibility.

[0077] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

[0078] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0079] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A workstation for welding prefabricated pipes or embedded parts, characterized in that: include, A chassis with composite casters at the bottom; The column located on the chassis, and the control cabinet and processing table located on both sides of the column; It also includes a single cantilever located at the top of the column, a robot on a mounting plate at the bottom of the single cantilever, the robot being connected to a welding gun acting on the prefabricated pipe or embedded parts; It also includes a wire feeder disposed on the single cantilever and staggered with the robot; The movement of the robot drives the welding gun on the robot to move closer to or away from the processing table; The processing table is detachably connected to the column, and the bottom of the processing table is detachably connected with legs for supporting the processing table.

2. The workstation for welding prefabricated pipes or embedded parts according to claim 1, characterized in that: The upright column is provided with a guide rail and a sliding block moving along the guide rail.

3. The workstation for welding prefabricated pipes or embedded parts according to claim 2, characterized in that: It also includes a fixed tooling which is connected to the slide block and is arranged toward the workbench.

4. The workstation for welding prefabricated pipes or embedded parts according to claim 1, characterized in that: The column comprises a square steel sleeve and a built-in square steel column with a lifting mechanism at the bottom. The built-in square steel column and the square steel sleeve are both provided with a plurality of round holes for inserting pins.

5. The workstation for welding prefabricated pipes or embedded parts according to claim 4, characterized in that: The square steel casing is provided with a cable through hole for controlling the electrical connection between the power supply in the cabinet and the external device.

6. The workstation for welding prefabricated pipes or embedded parts according to claim 1, characterized in that: The single cantilever is provided with a cross bar, and the cross bar is connected with a pulley hook for cable suspension.

7. The workstation for welding prefabricated pipes or embedded parts according to claim 1, characterized in that: The control cabinet is a frame structure, and a gas shielded welding gas cylinder for supplying gas to the welding gun is provided on the side of the control cabinet.

8. The workstation for welding prefabricated pipes or embedded parts according to claim 7, characterized in that: The control cabinet is provided with a plurality of power mechanisms, a power supply mechanism, a signal transfer interface and a control switch.

9. The workstation for welding prefabricated pipes or embedded parts according to claim 7, characterized in that: A bracket assembly is provided on the top of the control cabinet, and the bracket assembly forms a hanging portion or an assembly portion.

10. The workstation for welding prefabricated pipes or embedded parts according to claim 1, characterized in that: There are a plurality of composite casters, and an assembly gap is formed between the composite casters. A forklift fork hole is also arranged in the assembly gap.

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