CN113894467B - Double-station automatic welding system for ground rail - Google Patents
Double-station automatic welding system for ground rail Download PDFInfo
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- CN113894467B CN113894467B CN202110989649.0A CN202110989649A CN113894467B CN 113894467 B CN113894467 B CN 113894467B CN 202110989649 A CN202110989649 A CN 202110989649A CN 113894467 B CN113894467 B CN 113894467B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a double-station automatic welding system for a ground rail, which comprises the following components: the automatic conveying lifting vehicle comprises a conveying rail and a hydraulic lifting trolley which extend along the first direction, wherein two automatic welding devices and two welding fixture clamps which extend along the second direction are arranged on two sides of the automatic conveying lifting vehicle, the two assembling working platforms of the assembling working frame and the two buffer working platforms of the buffer working frame are respectively and symmetrically separated, the assembling working platforms are lower than the buffer working platforms, the L-shaped double-rotation displacement machine comprises a machine head capable of being driven actively and a tail seat capable of being driven to operate, the automatic conveying lifting vehicle comprises the conveying rail and the hydraulic lifting trolley which extend along the first direction, and the two automatic welding devices are movably arranged on the welding moving rail which extends along the second direction. The invention realizes the automation of ground rail welding, improves the production efficiency, improves the labor intensity and improves the welding quality and yield.
Description
Technical Field
The invention belongs to the technical field of automatic welding, and particularly relates to a double-station automatic welding system for a ground rail.
Background
Welding is a metal process in which two separate metal joints are joined together by heat to melt, or simultaneously pressure, or filled with metal, or not filled with metal. Compared with riveting and bolting, the welded joint has the advantages of simple structure, high joint strength, good compactness, metal saving, high production efficiency, lower cost and the like. Welding is therefore widely used in various industries.
At present, when a company makes a robot walking ground rail, the labor intensity of manual welding is high, the welding process of a welder is unstable easily caused by long-time high-temperature and strong-light environments, the quality is difficult to guarantee, the welding quality depends on the welding skills and experience of the welder, the welding consistency is poor, the ground rail is overlarge in size and difficult to turn over, the number of welded seams required to be welded is large, the condition of welding missing is easily caused, the welding efficiency is difficult to promote, and a processing order is difficult to complete on time.
Disclosure of Invention
Aiming at the technical problems, the invention provides a double-station automatic welding system for a ground rail, which is used for solving the problems of high labor intensity, low efficiency and poor welding quality when a welding robot walks on the ground rail.
The invention provides a double-station automatic welding system for a ground rail, which comprises the following components: the welding fixture comprises an assembly fixture frame, a buffer fixture frame, an L-shaped double-rotation positioner and a welding moving rail, wherein the assembly fixture frame, the buffer fixture frame, the L-shaped double-rotation positioner and the welding moving rail are sequentially arranged along a first direction, the welding fixture frame further comprises two welding fixture fixtures, an automatic conveying lifting car and two automatic welding devices, the two welding fixture fixtures extend along a second direction and are used for fixing and clamping a ground rail, the first direction is perpendicular to the second direction, the assembly fixture frame comprises two assembly working platforms which are symmetrically separated at two sides of the automatic conveying lifting car and are used for erecting the welding fixture fixtures and the ground rail during assembly, the buffer fixture frame comprises two buffer working platforms which are symmetrically separated at two sides of the automatic conveying lifting car and are used for erecting the welding fixture fixtures and the ground rail during buffer, the L-shaped double-rotation positioner comprises a nose capable of being driven and a tail seat capable of being driven, the welding fixture fixtures and the ground rail are jointly fixed and turned during welding, the automatic lifting car comprises a conveying rail and a hydraulic lifting car which extends along the first direction, and the welding fixture frame is used for being arranged between the assembly fixture frame, the L-shaped double-rotation positioner and the ground rail capable of being arranged along the first direction and the welding moving rail along the second direction, and the welding moving rail capable of being set up and the welding moving along the second direction along the welding moving rail are arranged along the first direction.
Optionally, the chassis of the assembly working platform and the chassis of the cache working platform located on the same side are connected with each other.
Optionally, the height position of the buffer working platform is higher than the highest height position of the welding fixture clamp and the ground rail when the assembly is completed.
Optionally, an adjustable distance is provided between the nose and the tailstock.
Optionally, the machine head and the tailstock comprise press-fitting mechanisms for automatically clamping and loosening the welding fixture and the ground rail at the fixed positions.
Optionally, the conveying track comprises a plurality of photoelectric proximity switches, and the photoelectric proximity switches are respectively arranged at positions, close to the assembly tool rack, the buffer tool rack and the L-shaped double-rotation positioner, on the conveying track.
Optionally, the lifting of the hydraulic lifting trolley has a highest limit and a lowest limit, the highest limit is higher than the height position of the buffer working platform, and the lowest limit is lower than the height position of the assembly working platform.
Optionally, the automatic welding device comprises an automatic welding gun, an ABB robot, a wire feeder and a gun cleaning platform, wherein the automatic welding gun is connected with the ABB robot and is opposite to the welding fixture, the automatic welding gun is connected with the wire feeder and is fed by the wire feeder, and the gun cleaning platform is arranged beside the automatic welding gun.
Preferably, the double-station automatic welding system further comprises a control cabinet, wherein the control cabinet is respectively in communication connection with the ABB robot, the L-shaped double-rotation positioner, the automatic conveying lifting truck and the automatic welding gun and is used for completing automatic welding of the ground rail in a matched mode.
Preferably, the double-station automatic welding system further comprises an electrical control system, wherein the electrical control system comprises a PLC main control unit and a touch display screen, the PLC main control unit is used for providing independent power sources for an automatic welding gun, an ABB robot, an L-type double-rotation positioner and an automatic conveying lifting vehicle respectively, and the touch display screen is used for displaying various power source parameters in real time and also is used for manually inputting the power source parameters to the PLC main control unit.
Compared with the prior art, the invention utilizes the advantage of industrial automation, adopts the mature ABB robots on the market to reasonably arrange all devices, builds a set of self double-station finished product welding system, improves the production efficiency, improves the labor intensity, improves the quality and the yield of welded products, ensures the consistency of the products, has controllable welding time, is convenient for production, and can adjust the welded products through manufacturing tools and modification programs in the follow-up process, thereby realizing flexible and batched welding processing.
Drawings
FIG. 1 is a schematic view of a dual-station automatic welding system for ground rails according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a dual-station automatic welding system for ground rails according to an embodiment of the present invention at another view angle;
FIG. 3 is an enlarged partial schematic view of FIG. 2A;
fig. 4 is a schematic structural diagram of a dual-station automatic welding system for a ground rail according to an embodiment of the present invention at another view angle.
Detailed Description
For a further understanding of the objects, construction, features, and functions of the invention, reference should be made to the following detailed description of the preferred embodiments.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Referring to fig. 1, 2 and 3, a dual station automatic welding system 100 for a ground rail includes: the assembly tool rack 1, the buffer tool rack 2, the L-shaped double-rotation positioner 3 and the welding moving rail 4 which are sequentially arranged along the first direction X further comprise two welding tool clamps 5, an automatic conveying lifting car 6 and two automatic welding devices 7. The arrangement of the two welding fixture clamps 5 and the buffer fixture frame 2 is convenient for preparing for welding in advance, and improves production efficiency, wherein the two welding fixture clamps 5 after clamping the ground rail are defined as an A fixture and a B fixture.
The welding fixture 5 extends along the second direction Y and is used for fixing and clamping the ground rail, and the first direction X is perpendicular to the second direction Y. The two welding fixtures 5 are alternately used among the assembly fixture frame 1, the buffer fixture frame 2 and the L-shaped double-rotation positioner 3.
The assembly tool rack 1 comprises two assembly working platforms 11 symmetrically separated at two sides of the automatic conveying lifting car 6 for erecting the welding tool clamp 5 and the ground rail during assembly.
The buffer work rack 2 comprises two buffer work platforms 21 which are symmetrically separated at two sides of the automatic conveying lifting car 6 and are used for erecting the welding work fixture 5 and the ground rail during buffer storage, and the height position of the assembly work platform 11 is lower than that of the buffer work platform 21. Such a height setting can avoid multiple lifts and simplify the operation flow of the automatic conveyance lifter 6.
The L-shaped double-rotation positioner 3 comprises a machine head 31 capable of driving and a tailstock 32 capable of running in a driven mode, and is used for jointly fixing and overturning the welding fixture 5 and the ground rail during welding.
The automatic transfer cart 6 includes a transfer rail 61 and a hydraulic transfer cart 62 extending in the first direction X for transferring and lifting the welding jig 5 and the ground rail between the assembly jig 1, the buffer jig 2 and the L-type double-swing positioner 3.
The welding movement rail 6 is provided extending in the second direction Y.
Two sets of automatic welding devices 7 are movably arranged on the welding movement rail 6 in the second direction Y. Such a double station arrangement may improve processing efficiency.
Optionally, the chassis of the assembly work platform 11 and the chassis of the cache work platform 21 on the same side are connected to each other. The conjoined arrangement can improve the stability of the assembly working platform 11 and the buffer working platform 21, and is not easy to topple over.
Optionally, the height position of the buffer work platform 21 is higher than the highest height position of the welding fixture 5 and the ground rail when the assembly is completed. Such height setting is convenient for hydraulic lifting trolley 62 to get back to assembly work frame 1 from buffer memory tool frame 2, need not to go up and down again, has simplified the production operation flow, has improved production efficiency.
Optionally, an adjustable distance is provided between the nose 31 and the tailstock 32. The arrangement can adapt to the ground rail processing of different length specifications, and the diversity of production is realized.
Optionally, the nose 31 and the tailstock 32 respectively include a press-fitting mechanism for automatically clamping and unclamping the welding fixture 5 and the ground rail at a fixed position. The automatic press-fitting mechanism is convenient for improving the automation degree of the whole production and improving the stability of the production. The automatic pressing mechanism can drive the screw rod to rotate by adopting forward and reverse rotation of the motor, so that left and right bolts installed on the screw rod move in opposite directions, clamping and loosening of a fixed position are realized, whether clamping is in place or not is checked through the inductor, and the consistency of the front and rear tool positions is ensured.
Optionally, the conveying track 61 includes a plurality of photoelectric proximity switches, which are respectively disposed on the conveying track 61 at positions near the assembly tool rack 1, the buffer tool rack 2 and the L-type double-rotation positioner 3. The hydraulic lifting trolley 62 can be assisted to realize accurate stopping, and the running stability of the whole system is improved.
Optionally, the lifting of the hydraulic lifting trolley 62 has a highest limit and a lowest limit, the highest limit being higher than the height position of the buffer work platform 21, and the lowest limit being lower than the height position of the assembly work platform 11.
Alternatively, the automatic welding device 7 comprises an automatic welding gun 71, an ABB robot 72, a wire feeder and a gun cleaning platform, wherein the automatic welding gun is connected with the ABB robot 72 and is opposite to the welding fixture 5, the automatic welding gun 71 is connected with the wire feeder and is fed with wires by the wire feeder, and the gun cleaning platform is arranged beside the automatic welding gun 71. The automatic welding gun 71 adopts a fonis welding machine TPS40 to realize welding work. The wire feeder is combined with the Funies welding machine TPS40, and wire feeding is continuously carried out in the welding process, so that the welding sustainability is ensured. In addition, the ABB robot 72 is combined with the fonis welder TPS40 to realize arbitrary swinging. The gun cleaning platform comprises an automatic gun cleaning and wire cutting device and is used for cleaning large amount of splashes on the welding gun and eliminating factors affecting the welding effect.
Preferably, the automatic welding machine further comprises a control cabinet 8, wherein the control cabinet 8 is respectively in communication connection with the ABB robot 72, the L-shaped double-rotation positioner 3, the automatic conveying lifting car 6 and the automatic welding gun 71 and is used for completing automatic welding of ground rails in a matched mode.
Preferably, the automatic welding gun comprises an automatic welding gun 71, an ABB robot 72, an L-shaped double-rotation positioner 3 and an automatic conveying lifting car 6, and further comprises an electric control system, wherein the electric control system comprises a PLC main control unit and a touch display screen, and the PLC main control unit is used for providing independent power supplies for the automatic welding gun 71, the ABB robot 72, the L-shaped double-rotation positioner 3 and the automatic conveying lifting car 6 respectively, and the touch display screen is used for displaying power supply parameters in real time and manually inputting the power supply parameters to the PLC main control unit. The electric control system adopts a Siemens PLC machine as a main control unit, is matched with a Fuyanshi welding power supply and an ABB robot, inputs of all states and switching values of the control system directly enter an inlet of a PLC program controller, outputs directly drive the functions of controlling the welding power supply, rotating a turntable and the like, and all parts of a PLC programmable controller, speed regulation and display adopt respective power supplies which are completely isolated from each other, so that the accuracy of the controller is obviously improved. The touch display screen mainly monitors each position signal.
The working principle of one embodiment of the invention is as follows:
in the normal production process, when the installation of the tool A is finished, the hydraulic lifting trolley 62 running to the position of the assembly tool frame 1 (namely the assembly position) rises to the highest limit, the tool A is jacked up, then the hydraulic lifting trolley 62 advances to the position of the buffer tool frame 2 (namely the buffer position) and descends to the lowest limit, the tool A is placed on the buffer tool frame 2, then the hydraulic lifting trolley 62 continues to advance to the position of the L-shaped double-rotation position changing machine 3 (namely the welding position) along the first direction X and rises to the highest limit, the tool B with finished welding is jacked up, then the hydraulic lifting trolley 62 retreats to the position away from the L-shaped double-rotation position changing machine 3, at this time, the hydraulic lifting trolley 62 starts to descend to a height position lower than the buffer work platform 21 and higher than the assembly work platform 11, passes through from below the buffer work platform 21 to reach the assembly tool frame 1, descends to the lowest limit, lowers the B tool to the assembly tool frame 1, advances the hydraulic lifting trolley 62 to the buffer tool frame 2 and ascends to the highest limit to jack up the A tool, continues to advance to the L-shaped double-rotation positioner 3 and descends to the lowest limit, lowers the A tool, then starts to retreat to the assembly tool frame 1, and continues to operate according to the principle after waiting for the installation of the next tool.
According to the double-station automatic welding system for the ground rail, provided by the invention, the advantages of industrial automation are utilized, mature ABB robots in the market are adopted to reasonably arrange all devices, a set of self double-station finished product welding system is built, the production efficiency is improved, the labor intensity is improved, the quality and the yield of welded products are improved, the consistency of the products is ensured, in addition, the welding time is controllable, the production is convenient, and in addition, the welded products can be adjusted through manufacturing tools and modification programs, so that the flexible and batched welding processing is realized.
The invention has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (8)
1. A double station automatic welding system for a ground rail, comprising: the device comprises an assembly tool frame, a buffer tool frame, an L-shaped double-rotation positioner and a welding moving track which are sequentially arranged along a first direction, and further comprises two welding tool clamps, an automatic conveying lifting vehicle and two automatic welding devices;
the two welding fixture clamps are arranged in an extending mode along a second direction and are used for fixing and clamping the ground rail, the first direction is perpendicular to the second direction, and the two welding fixture clamps for clamping the ground rail are respectively defined as an A fixture and a B fixture;
the assembly tool frame comprises two assembly working platforms which are symmetrically separated at two sides of the automatic conveying lifting car and are used for erecting the welding tool clamp and the ground rail during assembly;
the buffer work rack comprises two buffer work platforms which are symmetrically separated at two sides of the automatic conveying lifting vehicle and are used for erecting the welding work clamp and the ground rail during buffer, the height position of the assembly work platform is lower than that of the buffer work platform, and the height position of the buffer work platform is higher than the highest height position of the welding work clamp after the ground rail is arranged on the assembly work platform;
the L-shaped double-rotation positioner comprises a machine head capable of driving and a tailstock capable of running in a driven way, and is used for jointly fixing and overturning the welding fixture clamp and the ground rail during welding;
the automatic conveying lifting trolley comprises a conveying rail and a hydraulic lifting trolley which extend along the first direction, and is used for conveying and lifting the welding fixture and the ground rail among the assembly fixture frame, the buffer fixture frame and the L-shaped double-rotation positioner, wherein the lifting of the hydraulic lifting trolley is provided with a highest limit and a lowest limit, the highest limit is higher than the height position of the buffer working platform, and the lowest limit is lower than the height position of the assembly working platform;
the welding moving track extends along the second direction;
the two sets of automatic welding devices are movably arranged on the welding moving track along the second direction;
the welding process of the double-station automatic welding system for the ground rail comprises the following steps:
s1, after a ground rail workpiece to be welded is installed through the tool A, the hydraulic lifting trolley moves to the assembly tool frame and ascends to the highest limit, and the tool A is jacked up;
s2: the hydraulic lifting trolley conveys an A tool provided with a ground rail workpiece to be welded to the position of an L-shaped double-rotation positioner along a welding moving track, descends to the lowest limit, puts down the A tool to place the A tool on the L-shaped double-rotation positioner, and the automatic welding device starts to weld the ground rail workpiece to be welded;
s3: the hydraulic lifting trolley retreats to leave the L-shaped double-rotation positioner, at the moment, the hydraulic lifting trolley starts to descend to a height position lower than the buffer work platform and higher than the assembly work platform, then passes through the lower part of the buffer work platform to reach the assembly work rack, and descends to the lowest limit;
s4: after the next ground rail workpiece to be welded is mounted by the tool B, the hydraulic lifting trolley moves to the assembly tool frame and rises to the highest limit, and the tool B is jacked up;
s5: the hydraulic lifting trolley advances to the position of the buffer tooling frame and descends to the lowest limit, and the B tooling is placed on the buffer tooling frame;
s6: after the welding of the ground rail workpiece to be welded on the A tool on the L-shaped double-rotation positioner is finished, a hydraulic lifting trolley advances to the L-shaped double-rotation positioner along the first direction and ascends to the highest limit, the A tool with finished welding is jacked up, then the hydraulic lifting trolley retreats to leave the L-shaped double-rotation positioner, at the moment, the hydraulic lifting trolley starts to descend to a height position lower than the cache working platform and higher than the assembly working platform, then passes from below the cache working platform to reach the assembly tool frame, and descends to the lowest limit, and the A tool is put down to the assembly tool frame;
s7, the hydraulic lifting trolley advances to the buffer tooling frame and ascends to the highest limit to jack up the B tooling, the hydraulic lifting trolley continues to advance to the L-shaped double-rotation positioner and descends to the lowest limit, and the B tooling is put down; putting down the B tool, putting the B tool on an L-shaped double-rotation positioner, and starting to weld the ground rail workpiece to be welded by an automatic welding device;
and S8, the hydraulic lifting trolley retreats to the assembly tool rack, and continues to circularly operate according to the steps after the next tool is installed.
2. A duplex automatic welding system for floor rails according to claim 1, characterized in that the underframe of the assembly work platform and the underframe of the buffer work platform on the same side are connected to each other.
3. A dual station automatic welding system for use with a ground rail as recited in claim 1, wherein the nose and tailstock have an adjustable spacing therebetween.
4. The dual station automatic welding system for a ground rail of claim 1, wherein the head and tailstock each include a press-fit mechanism for automatically clamping and unclamping the welding fixture and the ground rail in a fixed position.
5. The double station automatic welding system for ground rails of claim 1, wherein the conveyor rail comprises a plurality of photoelectric proximity switches disposed thereon at positions on the conveyor rail adjacent to the assembly jig frame, the buffer jig frame and the L-shaped double turn positioner, respectively.
6. The double-station automatic welding system for ground rails according to claim 1, wherein the automatic welding device comprises an automatic welding gun, an ABB robot, a wire feeder and a gun cleaning station, the automatic welding gun is connected with the ABB robot and faces the welding fixture, the automatic welding gun is connected with the wire feeder and is fed by the wire feeder, and the gun cleaning station is installed beside the automatic welding gun.
7. The dual station automated welding system for a ground rail of claim 6, further comprising a control cabinet in communication with the ABB robot, the L-shaped dual swivel positioner, the automated transport lift truck, and the automated welding gun, respectively, for co-operating to accomplish automated welding of the ground rail.
8. The dual-station automatic welding system for a ground track of claim 6, further comprising an electrical control system including a PLC master control unit providing independent power sources for the automatic welding gun, the ABB robot, the L-shaped dual-swivel positioner, and the automatic transport lift truck, respectively, and a touch display screen for displaying various power parameters in real time and for manually inputting the power parameters to the PLC master control unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110989649.0A CN113894467B (en) | 2021-08-26 | 2021-08-26 | Double-station automatic welding system for ground rail |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110989649.0A CN113894467B (en) | 2021-08-26 | 2021-08-26 | Double-station automatic welding system for ground rail |
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| CN113894467A CN113894467A (en) | 2022-01-07 |
| CN113894467B true CN113894467B (en) | 2023-05-23 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103192159B (en) * | 2013-04-23 | 2015-12-23 | 中国电子科技集团公司第三十八研究所 | A kind of welding robot workstation system for radar arrangement part |
| CN109825832A (en) * | 2019-04-11 | 2019-05-31 | 重庆德新机器人检测中心有限公司 | A kind of laser melting coating automation equipment and its control method |
| CN110316561B (en) * | 2019-05-29 | 2021-02-26 | 合肥国轩高科动力能源有限公司 | Cylinder power battery apron material loading memory device |
| CN112599963A (en) * | 2019-10-02 | 2021-04-02 | 康普技术有限责任公司 | Method and apparatus for assembling radiating structure of base station antenna |
| CN111673236A (en) * | 2020-07-22 | 2020-09-18 | 徐州华恒机器人系统有限公司 | Cylinder type outer circular seam welding production line |
| CN212953056U (en) * | 2020-08-14 | 2021-04-13 | 常州杰仕特网印机械有限公司 | Handling device for glass production |
| CN112077496B (en) * | 2020-08-31 | 2022-08-26 | 山推工程机械股份有限公司 | Automatic welding system for bulldozer trolley frame |
| CN213730080U (en) * | 2020-10-30 | 2021-07-20 | 昆山华恒机器人有限公司 | Movable arm welding workstation |
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