CN221247546U - Oil collecting pipe segment robot welding system - Google Patents

Abstract

The utility model relates to the technical field of radiator fin production and processing for power transformers, in particular to a welding system for a collecting oil pipe fin robot. The technical proposal is as follows: a first tooling assembly (4) and a first welding robot system (6) are arranged on the first rotary displacement assembly (2); a second tooling assembly (5) and a second welding robot system (7) are arranged on the second rotary displacement assembly (3); the feeding trolley assembly (8) comprises a track assembly (61) and a travelling trolley (62) moving on the track assembly (61), the track assembly (61) is vertically arranged with the linear guide rail assembly (13), and the intersection point of the track assembly (61) and the linear guide rail assembly (13) is located between the two slide plate assemblies (11). The utility model can effectively reduce the assembly gap between the single sheet assembly and the collecting pipe, ensure that automatic welding is smoothly carried out, improve the production efficiency, reduce the labor intensity, and improve the welding quality, the welding stability and the consistency.

Description

Oil collecting pipe segment robot welding system

Technical Field

The utility model relates to the technical field of radiator fin production and processing for power transformers, in particular to a welding system for a collecting oil pipe fin robot.

Background

The power transformer is an indispensable power transmission and transformation device in the power industry, and the cooling function of the power transformer in operation is very important, and the power transformer is provided with various types of heat exchangers so as to radiate heat in the power transformer to the air. The most commonly used heat exchanger is a finned radiator which is formed by assembling a plurality of single-piece groups, and each single-piece group is formed by turning two single-piece radiating fins and symmetrically combining the fins, then spot welding, seam welding and subsequent series of welding and processing. In the production and processing process of the radiator fin, the butt welding of the single-chip group and the collector group is an indispensable process for enabling the production line to run smoothly. Because the single-sheet group and the collector group have large gap and poor consistency, automatic welding is difficult to perform, most radiator fin manufacturers have to adopt a manual welding processing method at present, so that the production efficiency is low, the labor intensity is high, the welding quality is greatly influenced by welder skills, the consistency is poor, and the like, and potential safety hazards exist. Because the usage amount of the finned radiator is very large, the production efficiency of the finned radiator is required to be greatly improved, and the production development requirement is met.

Disclosure of utility model

The utility model aims to provide a welding system for a pipe piece robot of an oil collecting pipe, which can effectively reduce the assembly gap between a single piece assembly and a collecting pipe, ensure that automatic welding is smoothly carried out, improve the production efficiency, reduce the labor intensity, improve the welding quality and the welding stability and consistency, and solve the technical problems existing in the prior art.

The technical scheme of the utility model is as follows:

A welding system of a collecting pipe segment robot comprises a base assembly, a first rotary displacement assembly, a second rotary displacement assembly, a first tool assembly, a second tool assembly, a welding robot system, a second welding robot system and a feeding trolley assembly; the base assembly is provided with a linear guide rail assembly and two sliding plate assemblies sliding on the linear guide rail assembly, and the first rotary displacement assembly and the second rotary displacement assembly are respectively arranged on the respective sliding plate assemblies and can move left and right along the linear guide rail assembly; the first rotary deflection component is provided with a first tool component and a welding robot system; a second tooling assembly and a second welding robot system are arranged on the second rotary displacement assembly; the feeding trolley assembly comprises a track assembly and a travelling trolley moving on the track assembly, the track assembly is vertically arranged with the linear guide rail assembly, and the intersection point of the track assembly and the linear guide rail assembly is positioned between the two slide plate assemblies; the first rotary displacement assembly and the second rotary displacement assembly are identical or symmetrical in structure; the first tool component and the second tool component are identical or symmetrical in structure; the welding robot system is identical or symmetrical with the welding robot system in structure.

The first tool assembly comprises a rotary support, a turnover shaft assembly, a pressing arm assembly, a turnover driving assembly, a tensioning mechanism and a positioning block assembly, wherein the rotary support comprises a frame body, a linear guide rail, a rack and a limiting block, a T-shaped groove is formed in the frame body, and the linear guide rail, the rack and the limiting block are fixedly connected onto the frame body; the turnover shaft assembly comprises a main shaft, bearings, a positioning spacer bush, a positioning key, a locking nut and a chain wheel, wherein the bearings are respectively arranged at two ends of the main shaft, and the main shaft is arranged on the rotary support through the bearings; the main shaft is provided with a positioning spacer bush which is used for ensuring the relative position of the pressing arm assembly, and after the pressing arm assembly and the positioning spacer bush are assembled, the pressing arm assembly and the positioning spacer bush can be locked by two locking nuts; the mounting position of the pressing arm assembly is provided with a positioning key for circumferential limit of the pressing arm assembly; the overturning shaft assembly is connected with the rotary support through a bearing, the pressing arm assemblies are arranged on the overturning shaft assembly side by side, the axial relative position is determined through the positioning spacer, and the pressing arm assemblies are locked through locking nuts at two ends of the overturning shaft assembly; the two sets of overturning driving components are respectively arranged at two ends of the revolving bracket and are connected with chain wheels at two ends of the overturning shaft component through chains to provide overturning power for the revolving bracket; the two sets of tensioning mechanisms are connected with the rotary support through sliding blocks, the tensioning mechanisms are provided with servo driving assemblies, accurate movement is realized through gear racks, and the positioning block assemblies are used for positioning the collecting pipes; the two sets of positioning block assemblies are arranged on the T-shaped groove of the slewing bracket, are positioned with the slewing bracket through the guide key, and can adjust the positions of the positioning block assemblies according to the sheet type.

In order to reduce the deformation of the main shaft in the pressurizing process, two shaft seats are arranged at the middle position of the main shaft; the two ends of the main shaft are respectively provided with a chain wheel, the compression arm assembly comprises a tensioning joint, a compression block, an upper mounting seat and a lower mounting seat, the upper mounting seat and the lower mounting seat are integrally in a ring-shaped structure and are connected with the main shaft of the turnover shaft assembly, the compression block is fixedly connected with the upper mounting seat, and the tensioning joint is fixedly connected with the compression block.

The overturning driving assembly comprises an air motor, a speed reducer and a speed reducer mounting seat, the speed reducer mounting seat is fixedly connected with the slewing bracket, the air motor is connected with the speed reducer, a chain wheel is arranged on an output shaft of the speed reducer, and the speed reducer is connected with the speed reducer mounting seat.

The tensioning mechanism comprises a sliding plate, a sliding block, a pneumatic hook claw, a servo driving assembly and an anti-splashing guard plate, wherein the sliding plate is connected with the sliding block, the sliding block is matched with a linear guide rail arranged on a revolving support for use, the pneumatic hook claw is arranged on the sliding plate, the servo driving assembly is arranged on the sliding plate, and the anti-splashing guard plate is arranged on the sliding plate.

The positioning block assembly comprises a positioning block, a T-shaped nut and a guide key, the positioning block is connected with the slewing bracket through a screw and the T-shaped nut, and the guide key is arranged on the positioning block.

The working process of the utility model comprises the following steps: firstly, two collecting pipes and a plurality of single-piece groups are fixedly assembled by manual on-line assembly to form a combined workpiece; after finishing the spot setting, an operator lifts the welding robot system I and the welding robot system II to a welding position, and a positioning block assembly on the tool assembly I and the tool assembly II tightly pushes collecting pipes at two ends of the combined workpiece to finish positioning of the combined workpiece; the overturning driving assembly acts, the overturning shaft assembly is driven to rotate through the chain, the pressing arm assembly is driven to overturn, the pressing arm assembly is made to be attached to the flanging cambered surface of the single-piece group, then, the pneumatic hook claw in the tensioning mechanism acts and is in contact with the tensioning joint in the pressing arm assembly to be pressed, and then, the group gap between the single-piece group flanging and the collecting pipe can be effectively reduced through extrusion of the pressing arm assembly.

The utility model has the beneficial effects that: the assembly gap between the single-piece assembly and the collecting pipe can be effectively reduced, the automatic welding is ensured to be smoothly carried out, the production efficiency is improved, the labor intensity is reduced, and the welding quality, the welding stability and the consistency are improved; all welding procedures of the combined workpiece can be automatically completed, the skill requirement and labor intensity of operators are reduced, and the production cost is further reduced.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic structural view of the base assembly;

FIG. 3 is a schematic diagram of the first and second rotary indexing assemblies;

FIG. 4 is a schematic structural diagram of a first and a second tooling assembly;

FIG. 5 is a schematic structural view of a slewing bearing;

FIG. 6 is a top view of FIG. 5;

FIG. 7 is a schematic structural view of the invert shaft assembly;

FIG. 8 is a schematic structural view of a hold-down arm assembly;

FIG. 9 is a schematic structural view of the tumble drive assembly;

FIG. 10 is a schematic structural view of the tightening mechanism;

FIG. 11 is a side view of FIG. 10;

FIG. 12 is a schematic structural view of the locating block assembly;

FIG. 13 is a schematic diagram of a first and second configuration of a welding robot system;

FIG. 14 is a schematic structural view of a feed carriage assembly;

FIG. 15 is a schematic view of a combined workpiece to be machined;

In the figure: the device comprises a base assembly-1, a rotary displacement assembly-2, a rotary displacement assembly-3, a tooling assembly-4, a tooling assembly-5, a welding robot system-6, a welding robot system-7, a feeding trolley assembly-8 and an electrical system-9, a driving assembly-10, a slide plate assembly-11, a drag chain assembly-12, a linear guide rail assembly-13, a screw pair-14, a base-15, a cable bridge-16, a positioner body-17, a servo motor-18, a speed reducer-19, a rotary support disc-20, a rotary support frame-21, a turnover shaft assembly-22, a compression arm assembly-23, a turnover driving assembly-24, a tensioning mechanism-25, a positioning block assembly-26, a frame body-27, a T-shaped groove-28, a linear guide rail-29, a rack-30, a limiting block-31, a bearing-32, a locking nut-33, a positioning spacer-34, a positioning key-35, a shaft seat-36, a main shaft-37, a tensioning joint-38, a compression block-39, a mounting seat-40, a servo motor-41, a speed reducer-42, a speed reducer mounting-43, a chain wheel-45, a sliding guide rail-52, a guide rail-54-55, a guide rail-51, a guide rail assembly-53, a guide rail-55, a slide plate assembly-55, a guide rail-51, a guide rail assembly-55, a guide rail assembly-51, a splash-51, a slide plate assembly-55, a slide plate assembly-guide rail-46, a slide plate assembly-51, a slide-guide rails-46, a slide-and a slide plate assembly-46, a slide plate assembly-50, a slide rail assembly-50, a slide-and a slide rail assembly-50, a slide rails-and a slide plate assembly-, the arc welding robot-58, the gun cleaning system-59, the drag chain system-60, the track assembly-61, the walking trolley-62, the servo driving assembly-63, the lifting assembly-64, the supporting table-65, the single-piece group 81, the single-piece group flanging 82, the collecting pipe 83, the group pairing gap 84 and the group pairing fixing 85.

Detailed Description

The utility model is further illustrated by the following examples.

A welding system of a collecting pipe segment robot comprises a base assembly 1, a first rotary displacement assembly 2, a second rotary displacement assembly 3, a first tool assembly 4, a second tool assembly 5, a welding robot system 6, a welding robot system 7 and a feeding trolley assembly 8; the base assembly 1 is provided with a linear guide rail assembly 13 and two slide plate assemblies 11 sliding on the linear guide rail assembly 13, and the first rotary displacement assembly 2 and the second rotary displacement assembly 3 are respectively arranged on the respective slide plate assemblies 11 and can move left and right along the linear guide rail assembly 13; a tooling assembly I4 and a welding robot system I6 are arranged on the rotary displacement assembly I2; a second tooling assembly 5 and a second welding robot system 7 are arranged on the second rotary displacement assembly 3; the feeding trolley assembly 8 comprises a track assembly 61 and a travelling trolley 62 which moves on the track assembly 61, wherein the track assembly 61 is arranged vertically to the linear guide rail assembly 13, and the intersection point of the track assembly 61 and the linear guide rail assembly 13 is positioned between the two slide plate assemblies 11; the first rotary displacement assembly 2 and the second rotary displacement assembly 3 are identical or symmetrical in structure; the first tooling component 4 and the second tooling component 5 are identical or symmetrical in structure; the welding robot system I6 and the welding robot system II 7 have the same or symmetrical structure.

The first tooling assembly 4 comprises a rotary support 21, a turnover shaft assembly 22, a pressing arm assembly 23, a turnover driving assembly 24, a tensioning mechanism 25 and a positioning block assembly 26, wherein the rotary support 21 comprises a frame 27, a linear guide rail 29, a rack 30 and a limiting block 31, a T-shaped groove 28 is formed in the frame 27, and the linear guide rail 29, the rack 30 and the limiting block 31 are fixedly connected to the frame; the turnover shaft assembly 22 comprises a main shaft 37, bearings 32, a positioning spacer 34, a positioning key 35, a locking nut 33 and a chain wheel 44, wherein the bearings 32 are respectively arranged at two ends of the main shaft 37, and the main shaft 37 is arranged on the turnover bracket 21 through the bearings 32; the main shaft 37 is provided with a positioning spacer bush 34 for ensuring the relative position of the pressing arm assembly 23, and when the pressing arm assembly 23 and the positioning spacer bush 34 are assembled, the pressing arm assembly can be locked by two locking nuts 33; a positioning key 35 is arranged at the mounting position of the pressing arm assembly 23 and is used for circumferential limit of the pressing arm assembly 23; the turnover shaft assembly 22 is connected with the rotary support 21 through a bearing 32, the pressing arm assemblies 23 are arranged on the turnover shaft assembly 22 side by side, the axial relative positions are determined through positioning spacers 34, and the pressing arm assemblies are locked through locking nuts 33 at two ends of the turnover shaft assembly 22; the two sets of turnover driving components 24 are respectively arranged at two ends of the rotary bracket 21 and are connected with chain wheels at two ends of the turnover shaft component 22 through chains to provide turnover power for the turnover driving components; the two sets of tensioning mechanisms 25 are connected with the rotary support 21 through sliding blocks 45, the tensioning mechanisms 25 are provided with servo driving assemblies 47, accurate movement is realized through gear racks, and the positioning block assemblies 26 are used for positioning collecting pipes; the two sets of positioning block assemblies 26 are arranged on the T-shaped groove 28 of the slewing bracket 21, are positioned with the slewing bracket 21 through the guide key 52, and can adjust the positions of the positioning block assemblies 26 according to the sheet type.

In order to reduce the deformation of the main shaft 37 during the pressurization process, two shaft seats 36 are arranged at the middle position of the main shaft 37; the main shaft 37 both ends respectively install a sprocket 44, and the clamp arm subassembly 23 includes taut joint 38, compact heap 39, goes up mount pad 40 and lower mount pad whole and is annular structure and links to each other with the main shaft 37 of upset axle subassembly 22, and compact heap 39 links firmly with last mount pad 40, and taut joint 38 links firmly with compact heap 39.

The turnover driving assembly 24 comprises an air motor 41, a speed reducer 42 and a speed reducer mounting seat 43, the speed reducer mounting seat 43 is fixedly connected with the slewing bracket 21, the air motor 41 is connected with the speed reducer 42, a chain wheel 44 is mounted on an output shaft of the speed reducer 42, and the speed reducer 42 is connected with the speed reducer mounting seat 43.

The tensioning mechanism 25 comprises a sliding plate 48, a sliding block 45, a pneumatic claw 46, a servo driving assembly 47 and an anti-splashing guard plate 49, wherein the sliding plate 48 is connected with the sliding block 45, the sliding block 45 is matched with the linear guide rail 29 arranged on the rotary support 21 for use, the pneumatic claw 46 is arranged on the sliding plate 48, the servo driving assembly 47 is arranged on the sliding plate 48, and the anti-splashing guard plate 49 is arranged on the sliding plate 48.

The positioning block assembly 26 comprises a positioning block 50, a T-shaped nut 51 and a guide key 52, the positioning block 50 is connected with the slewing bracket 21 through a screw and the T-shaped nut 51, and the guide key 52 is arranged on the positioning block 50.

The working process of the utility model comprises the following steps: firstly, two collecting pipes 83 and a plurality of single-piece groups 81 are manually assembled and fixedly assembled on line 85 to form a combined workpiece; after finishing the spot setting, an operator lifts the welding robot system I and the welding robot system II to a welding position, and the positioning block assemblies on the tool assembly I and the tool assembly II tightly prop against collecting pipes 83 at two ends of the combined workpiece to finish the positioning of the combined workpiece; the overturning driving assembly acts, the overturning shaft assembly is driven to rotate through the chain, the pressing arm assembly is driven to overturn, the pressing arm assembly is made to be attached to the cambered surface of the single-piece group flanging 82, then, the pneumatic hook claw in the tensioning mechanism acts and is in contact with the tensioning joint in the pressing arm assembly to be pressed, and then, the group pair gap 84 between the single-piece group flanging 82 and the collecting pipe 83 can be effectively reduced through extrusion of the pressing arm assembly.

In an embodiment, referring to fig. 1-14, a welding system for a pipe segment robot of an oil collecting pipe comprises a base assembly 1, a first rotary displacement assembly 2, a second rotary displacement assembly 3, a first tooling assembly 4, a second tooling assembly 5, a first welding robot system 6, a second welding robot system 7, a feeding trolley assembly 8 and an electrical system 9. The base assembly 1 is the foundation of the welding system and is connected with the ground through foundation bolts; the first rotary displacement component 2 and the second rotary displacement component 3 are fixedly connected with slide plate components 11 on two sides of the base assembly 1 through bolts; the first tooling component 4 and the second tooling component 5 are respectively fixedly connected with the rotary support disc 20 on the first rotary displacement component 2 and the second rotary displacement component 3 through bolts; the welding robot system I7 and the welding robot system II 8 are respectively fixedly connected with the positioner main bodies 17 on the rotary deflection assembly I2 and the rotary deflection assembly II 3 through bolts; the feeding trolley component 8 is crisscrossed with the base assembly 1 and is used for feeding and discharging. The electrical system 9 takes a programmable controller as a control core and is responsible for the operation of the whole system.

Fig. 2 shows that the base assembly 1 includes a driving assembly 10, a sliding plate assembly 11, a drag chain assembly 12, a linear guide rail assembly 13, a screw pair 14 and a base 15, the base 15 is a base member, the driving assembly 10, the linear guide rail assembly 13 and the screw pair 14 are all fixedly connected to the base 15, the sliding plate assembly 11 is connected with the linear guide rail assembly 13 and the screw pair 14 through screws, and the drag chain assembly 12 is used for protecting cables and water vapor pipelines.

Fig. 3 shows that the first rotary displacement assembly 2 includes a cable bridge 16, a displacement machine body 17, a servo motor 18, a speed reducer 19 and a rotary support disc 20, the displacement machine body 17 is a basic member, the cable bridge 16, the speed reducer 19 and the rotary support disc 20 are all fixedly connected to the displacement machine body 17, the servo motor 18 is fixedly connected with the speed reducer 19 to drive the speed reducer, and the rotary support disc 20 is driven to rotate by a gear pair.

Fig. 4, 5 and 6 show that the first tooling assembly 4 comprises a revolving bracket 21, a turnover shaft assembly 22, a pressing arm assembly 23, a turnover driving assembly 24, a tensioning mechanism 25 and a positioning block assembly 26, the revolving bracket 21 comprises a frame 27, a linear guide 29, a rack 30 and a limiting block 31, a T-shaped groove 28 is formed in the frame 27, and the linear guide 29, the rack 30 and the limiting block 31 are fixedly connected onto the frame.

Fig. 7 shows that the tilting shaft assembly 22 includes a main shaft 37, bearings 32, a positioning spacer 34, a positioning key 35, a locking nut 33 and a sprocket 44, wherein the bearings at both ends of the main shaft 37 are respectively provided with a bearing 32, and the main shaft 37 is mounted on the slewing bearing 21 through the bearings 32; the main shaft 37 is provided with a positioning spacer bush 34 for ensuring the relative position of the pressing arm assembly 23, and when the pressing arm assembly 23 and the positioning spacer bush 34 are assembled, the pressing arm assembly can be locked by two locking nuts 33; a positioning key 35 is arranged at the mounting position of the pressing arm assembly 23 and is used for circumferential limit of the pressing arm assembly 23; in order to reduce the deformation of the main shaft 37 during the pressurization, two shaft seats 36 are arranged in the middle of the main shaft 37; one sprocket 44 is mounted on each end of the spindle 37.

Fig. 8 shows that the pressing arm assembly 23 includes a tightening joint 38, a pressing block 39, an upper mounting seat 40 and a lower mounting seat, the upper mounting seat 40 and the lower mounting seat are mounted up and down, and integrally form an annular hoop structure, and the hoop structure is mounted on the main shaft 37 of the turning shaft assembly 22, the pressing block 39 is fixedly connected with the mounting seat 40, and the tightening joint 38 is fixedly connected with the pressing block 39.

Fig. 9 shows that the turnover driving assembly 24 includes an air motor 41, a speed reducer 42, a speed reducer mounting seat 43 and a sprocket 44, the speed reducer mounting seat 43 is fixedly connected with the slewing bracket 21, the air motor 41 is connected with the speed reducer 42, the sprocket 44 is mounted on an output shaft of the speed reducer 42, and the speed reducer 42 is connected with the speed reducer mounting seat 43.

Fig. 10 and 11 show that the tensioning mechanism 25 comprises a sliding plate 48, a sliding block 45, a pneumatic claw 46, a servo driving assembly 47, the sliding plate 48 and an anti-splashing guard plate 49, wherein the sliding plate 48 is connected with the sliding block 45, the sliding block 45 is matched with the linear guide rail 29 arranged on the slewing bracket 21 for use, the pneumatic claw 46 is arranged on the sliding plate 48, the servo driving assembly 47 is arranged on the sliding plate 48, and the anti-splashing guard plate 49 is arranged on the sliding plate 48.

Fig. 12 shows that the positioning block assembly 26 includes a positioning block 50, a T-shaped nut 51 and a guide key 52, the positioning block 50 is connected with the slewing bracket 21 through a screw and the T-shaped nut 51, and the guide key 52 is mounted on the positioning block 50.

Fig. 4 shows that the turning support 21 is the main body of the first tooling assembly 4, the turning shaft assembly 22 is connected with the turning support 21 through a bearing 32, the pressing arm assemblies 23 are installed on the turning shaft assembly 22 side by side, the axial relative positions are determined through positioning spacers 34, and locking nuts 33 at two ends of the turning shaft assembly 22 are used for locking. Two sets of turnover driving components 24 are respectively arranged at two ends of the rotary support 21 and are connected with chain wheels at two ends of the turnover shaft component 22 through chains to provide turnover power for the turnover driving components. The two sets of tensioning mechanisms 25 are connected with the slewing brackets 21 through sliding blocks 45, the tensioning mechanisms 25 are provided with servo driving assemblies 47, accurate movement is achieved through gear racks, and the collecting pipe positioning block assemblies 26 are used for positioning collecting pipes. The two sets of positioning block assemblies are arranged on the T-shaped groove 28 of the slewing bracket 21, are positioned with the slewing bracket 21 through the guide key 52, and can adjust the position of the positioning block assembly 26 according to the sheet type.

Fig. 13 shows that the welding robot system 6 includes a servo motor 53, a slide table 54, a slide plate 55, a linear guide rail pair 56, a ball screw pair 57, an arc welding robot 58, a gun cleaning system 59, and a drag chain system 60. The sliding table 54 is a basic part, the servo motor 53 and the linear guide rail pair 56 are fixedly connected with the sliding table 54, the servo motor 53 drives the sliding plate 55 to move through the ball screw pair 57, the arc welding robot 58, the gun cleaning system 59 and the sliding plate 55 are fixedly connected, and the drag chain system 60 is used for protecting the safety of cables and water and gas pipelines.

Fig. 14 shows that the feeding trolley assembly 8 comprises a rail assembly 61, a travelling trolley 62, a servo drive assembly 63, a lifting assembly 64 and a support table 65. The walking trolley 62 is a basic member, the servo driving assembly 63 and the lifting assembly 64 are fixedly connected with the walking trolley 62, the lifting assembly 64 is driven by an air cylinder and guided by a linear guide rail, the walking trolley 62 is connected with a supporting table 65 serving as a supporting and positioning assembly of a workpiece, and the supporting table 65 is connected with the lifting assembly 64. The supporting table 65 is provided with a positioning block for positioning and combining the workpieces.

In the working process, referring to fig. 15, two collecting pipes 83 and a plurality of single-piece groups 81 are manually assembled and fastened in an on-line manner to form a combined workpiece, the assembling and fastening positions are as shown in fig. 15, after the assembling and fastening are completed, an operator lifts the combined workpiece to a supporting table surface of a feeding trolley assembly to complete clamping and positioning, a servo driving assembly drives the feeding trolley to drive the combined workpiece to enter a welding station, driving assemblies on two sides of a base assembly act to drive a first rotary deflection assembly and a second rotary deflection assembly to feed oppositely, and further drive a first welding robot system and a second welding robot system to enter a welding position, and positioning block assemblies on the first tool assembly and the second tool assembly tightly prop against collecting pipes 83 at two ends of the workpiece to complete positioning of the combined workpiece; the overturning driving assembly acts, the overturning shaft assembly is driven to rotate through the chain, the pressing arm assembly is driven to overturn, the pressing arm assembly is made to be attached to the cambered surface of the single-piece group flanging 82, then pneumatic hook claws in the tensioning mechanism act, contact with tensioning joints in the pressing arm assembly to press, and then the group butt gap 84 between the single-piece group flanging 82 and the collecting pipe 83 is effectively reduced through extrusion of the pressing arm assembly.

The robot welding system completes the semi-arc automatic welding, pneumatic hook claws in the tensioning mechanism return, a servo driving component in the tensioning mechanism acts to drive the tensioning mechanism to step for 1 piece distance, the pneumatic hook claws in the tensioning mechanism act to compress a workpiece, the robot welding system sequentially completes the welding of all single-piece groups and the collecting pipes, the above processes are repeated, all welding works are completed, and in the welding process, a feeding trolley component returns to a loading and unloading station; the first rotary shifting component and the second rotary shifting component synchronously act to drive the first tool component and the second tool component to rotate and drive the combined workpiece to turn over 180 degrees, and the process is repeated to finish welding of all lower half arcs of the combined workpiece. The turnover driving assembly acts, the turnover shaft assembly is driven to rotate through a chain, the pressing arm assembly is driven to turn over, the combined workpiece is loosened, the welding robot system I and the welding robot system II are driven by a servo motor to linearly run on the sliding table, the straight seam welding of the combined workpiece is completed, the rotation shifting assembly I and the rotation shifting assembly II synchronously act, the tool assembly I and the tool assembly II are driven to rotate, the combined workpiece is driven to turn over 180 degrees, the feeding trolley assembly enters the welding station, the lifting assembly rises, the combined workpiece is supported and positioned, the driving assemblies on two sides of the base assembly act, the rotation shifting assembly I and the rotation shifting assembly II are driven to back feed, the tool assembly I and the tool assembly II are driven to loosen the combined workpiece, the welding robot system I and the welding robot system II are driven by the servo motor to linearly run on the sliding table, the other straight seam welding of the combined workpiece is completed, the servo driving assembly drives the feeding trolley to return the combined workpiece to the feeding station, and an operator finishes the loading and unloading work.

The base assembly is a foundation of the welding system and is connected with the ground through foundation bolts; the first rotary displacement assembly and the second rotary displacement assembly are fixedly connected with sliding plates at two sides of the base through bolts; the first tooling component and the second tooling component are fixedly connected with the rotary supports on the first rotary displacement component and the second rotary displacement component respectively through bolts; the welding robot system I and the welding robot system II are respectively fixedly connected with the positioner main bodies on the rotary displacement assembly I and the rotary displacement assembly II through bolts; the feeding trolley component is crisscrossed with the base assembly and is used for feeding and discharging.

Claims (6)

1. A collection oil pipe section of jurisdiction robot welding system which characterized in that: the welding device comprises a base assembly (1), a first rotary displacement assembly (2), a second rotary displacement assembly (3), a first tool assembly (4), a second tool assembly (5), a first welding robot system (6), a second welding robot system (7) and a feeding trolley assembly (8); the base assembly (1) is provided with a linear guide rail assembly (13) and two slide plate assemblies (11) sliding on the linear guide rail assembly (13), the first rotary displacement assembly (2) and the second rotary displacement assembly (3) are respectively arranged on the respective slide plate assemblies (11) and can move left and right along the linear guide rail assembly (13); a first tooling assembly (4) and a first welding robot system (6) are arranged on the first rotary displacement assembly (2); a second tooling assembly (5) and a second welding robot system (7) are arranged on the second rotary displacement assembly (3); the feeding trolley assembly (8) comprises a track assembly (61) and a travelling trolley (62) moving on the track assembly (61), the track assembly (61) is vertically arranged with the linear guide rail assembly (13), and the intersection point of the track assembly (61) and the linear guide rail assembly (13) is positioned between the two slide plate assemblies (11); the first rotary displacement component (2) and the second rotary displacement component (3) are identical or symmetrical in structure; the first tooling component (4) and the second tooling component (5) are identical or symmetrical in structure; the welding robot system I (6) and the welding robot system II (7) are identical or symmetrical in structure.

2. The robotic welding system for collecting tube segments of claim 1, wherein: the first tool assembly (4) comprises a rotary support (21), a turnover shaft assembly (22), a pressing arm assembly (23), a turnover driving assembly (24), a tensioning mechanism (25) and a positioning block assembly (26), wherein the rotary support (21) comprises a frame body (27), a linear guide rail (29), a rack (30) and a limiting block (31), a T-shaped groove (28) is formed in the frame body (27), and the linear guide rail (29), the rack (30) and the limiting block (31) are fixedly connected to the frame body (27); the turnover shaft assembly (22) comprises a main shaft (37), bearings (32), positioning spacers (34), positioning keys (35), a locking nut (33) and a chain wheel (44), wherein the bearings (32) are respectively arranged at two ends of the main shaft (37), and the main shaft (37) is arranged on the rotary support (21) through the bearings (32); the main shaft (37) is provided with a positioning spacer bush (34) which is locked by locking nuts (33) at two ends of the main shaft (37); a positioning key (35) is arranged at the installation position of the pressing arm assembly (23); two sets of overturning driving components (24) are respectively arranged at two ends of the rotary bracket (21) and are connected with chain wheels (44) at two ends of the overturning shaft component (22) through chains; the two sets of tensioning mechanisms (25) are connected with the rotary support (21) through sliding blocks (45), and the tensioning mechanisms (25) are provided with servo driving components (47); the two sets of positioning block assemblies (26) are arranged on the T-shaped groove (28) of the slewing bracket (21) and are positioned with the slewing bracket (21) through the guide key (52).

3. The robotic welding system for collecting tube segments as recited in claim 2, wherein: two shaft seats (36) are arranged in the middle of the main shaft (37); two ends of the main shaft (37) are respectively provided with a chain wheel (44); the compressing arm assembly (23) comprises a tensioning joint (38), a compressing block (39), an upper mounting seat (40) and a lower mounting seat, wherein the upper mounting seat (40) and the lower mounting seat are integrally of an annular structure and are connected with a main shaft (37) of the overturning shaft assembly (22), the compressing block (39) is fixedly connected with the upper mounting seat (40), and the tensioning joint (38) is fixedly connected with the compressing block (39).

4. A robotic welding system for collecting tube segments as claimed in claim 3, wherein: the turnover driving assembly (24) comprises an air motor (41), a speed reducer (42) and a speed reducer mounting seat (43), the speed reducer mounting seat (43) is fixedly connected with the rotary support (21), the air motor (41) is connected with the speed reducer (42), a chain wheel (44) is mounted on an output shaft of the speed reducer (42), and the speed reducer (42) is connected with the speed reducer mounting seat (43).

5. The robotic welding system for collecting tube segments of claim 4, wherein: the tensioning mechanism (25) comprises a sliding plate (48), a sliding block (45), a pneumatic hook claw (46), a servo driving assembly (47) and an anti-splashing guard plate (49), wherein the sliding plate (48) is connected with the sliding block (45), the sliding block (45) is matched with a linear guide rail (29) arranged on a rotary support (21), the pneumatic hook claw (46) is arranged on the sliding plate (48), the servo driving assembly (47) is arranged on the sliding plate (48), and the anti-splashing guard plate (49) is arranged on the sliding plate (48).

6. The robotic welding system of claim 5, wherein: the positioning block assembly (26) comprises a positioning block (50), a T-shaped nut (51) and a guide key (52), the positioning block (50) is connected with the slewing bracket (21) through a screw and the T-shaped nut (51), and the guide key (52) is arranged on the positioning block (50).