CN104289841A - Automatic surfacing device for inner curved surface of guide ring of turbine - Google Patents
Automatic surfacing device for inner curved surface of guide ring of turbine Download PDFInfo
- Publication number
- CN104289841A CN104289841A CN201410565520.7A CN201410565520A CN104289841A CN 104289841 A CN104289841 A CN 104289841A CN 201410565520 A CN201410565520 A CN 201410565520A CN 104289841 A CN104289841 A CN 104289841A
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- China
- Prior art keywords
- curved surface
- guide ring
- traveller
- welding
- arc
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Classifications
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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
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0211—Carriages for supporting the welding or cutting element travelling on a guide member, e.g. rail, track
Abstract
The invention discloses an automatic surfacing device for an inner curved surface of a guide ring of a turbine. The automatic surfacing device comprises annular guide rails coaxially arranged on the end surface of the guide ring, a cart circumferentially moving along the guide rails, a support fixed on the cart and a welding gun mounted on the support; a profiling slideway identical to a profiled line of the inner curved surface of the guide ring is arranged on the support, a slide post is adaptively arranged in the slideway and is capable of sliding in a reciprocating manner in the profiling slideway, the welding gun is mounted on the end surface of the slide post with the head pointing to the inner curved surface of the guide ring from the normal direction; the slide post is driven through a stepping driving device, the stepping distance is the width of one welding path, all the welding paths formed by one unilateral step of the slide post are arrayed in sequence, welding of one welding path is completed by one circle the cart runs, and slide post and the cart act alternatively. The automatic surfacing device is applicable to revolving body parts different in diameter and surfacing surfaces different in cross section, continuous and stable in welding process, good in welding quality, favorable for improvement of welding efficiency, simple in structure, use and maintenance and easy to promote.
Description
Technical field
The present invention relates to turbine making technology, specifically a kind of steam turbine guide ring curved surface automatic surfacing device.
Background technology
As shown in Figure 3, steam turbine guide ring 3 is large revolving body workpiece, diameter is more than 3 meters, its inner peripheral surface is an abnormal curved surface, this curved surface is important working face, very high to its mechanical property, corrosion resistance, heat resistant requirements, need first built-up welding one deck austenite heat-resistance stainless steel, upper vertical car metalworking.Guide ring 1 is rotarily formed around rotary middle spindle L by a revolution cross section Z, diameter more than 3 meters, part surface needs to carry out surface overlaying, treats that facing surface M is abnormal curved surface.As shown in Figure 10, the austenite heat-resistance stainless steel of built-up welding on steam turbine guide ring 3 is formed by multiple overlay cladding is stacked, and the welding bead of adjacent overlay cladding overlaps, the overlapping accumulation in fish scale-shaped.
But the negative camber due to steam turbine guide ring 3 is complex-curved, the difficulty of it being carried out to built-up welding is very large.For a long time, be all that not only efficiency is extremely low by being rich in the manual welding of the very high welder of experience, skill, and be difficult to ensure surfacing quality, layer is in uneven thickness, in order to ensure enough metalworking surpluses, have to strengthen the thickness of overlay cladding, a lot of expensive solder of waste.
Summary of the invention
Object of the present invention, is to provide a kind of steam turbine guide ring curved surface automatic surfacing device, with surfacing quality of increasing work efficiency, ensure, reduces waste of material.
The technical solution adopted in the present invention is:
A kind of steam turbine guide ring inner circumferential curved surface automatic surfacing device, comprise the ring-shaped guide rail be concentrically disposed on guide ring end face, along the dolly that guide rail moves in a circle, be fixed on the support on dolly, rack-mount welding gun, the inner circumferential curved surface of described guide ring is abnormal curved surface, be made up of with the Cylinder Surface being positioned at arc-shaped curved surface two ends the arc-shaped curved surface of arc-shaped ring groove, the cross section molded line of this abnormal curved surface is that arc and the straightway being positioned at arc two ends are formed, on the same line, arc and straightway joint portion camber line seamlessly transit two straightways; Described support has the profiling chute consistent with guide ring inner circumferential curved surface molded line, have adaptive traveller in this chute, can reciprocatingly slide in profiling chute, described welding gun is arranged on the end face of traveller, and its rifle head points to guide ring negative camber from normal direction; Described traveller is driven by step drive device, step distance is the width of a welding bead, the forward and reverse operation of step drive device, traveller reciprocal stepping in profiling chute can be made to slide, traveller is often further, welding gun i.e. a corresponding welding bead, all pass sequence arrangements that the unidirectional stepping stroke of traveller one is formed, form an overlay cladding, described dolly fortune circles, and completes a pass weld, traveller, dolly alternating movement, all welding beads of an overlay cladding can be welded one by one, the reciprocal stepping of traveller, can weld the overlay cladding of multiple overlap.
Described step drive device is made up of stepper motor, transmission mechanism, described transmission mechanism is made up of drive and two pull ropes, one end of pull rope ties up on traveller, the other end ties up to also tensioning on drive, form a closed-loop drive loop, the forward and reverse running of stepper motor, drives the forward and reverse stepping of drive to rotate, and is slided by the reciprocal stepping in profiling chute of pull rope traction traveller.
Described stepper motor is furnished with decelerator.
Described dolly by motor through decelerator deceleration.
This device is furnished with automatic controller, have control program, this control program meets following relation: after the unidirectional stepping stroke of traveller one completes, the distance of half weld width that moves forward, and then backstepping, make multiple overlay cladding be that fish scale-shaped overlap is piled up.
The technique effect that the present invention produces is:
1, the present invention can realize carrying special welding gun by equipment and freely moves back and forth along the rotary surface of large revolving body parts, thus carries out automatic surfacing, is specially adapted to the automatic surfacing of steam turbine guide ring inner circumferential curved surface.
2, the present invention adapts to the revolving body parts of different-diameter by the diameter changing guide rail, easily promotes.
3, the present invention adapts to the overlaying surface of varying cross-section shape by the profiling frame shape changing feeler mechanism, easily promotes.
4, the present invention is by track regulation welding gun walking path, and motor drives mobile, and welding process is stablized continuously, and weldquality is good, is beneficial to raising welding efficiency.
5, structure of the present invention is simple, and working service is simple, is easy to promote.
Accompanying drawing explanation
Fig. 1 is hardware configuration schematic diagram of the present invention;
Fig. 2 is the I partial enlarged drawing of Fig. 1;
Fig. 3 is the present invention's applicable large revolving body parts schematic diagram;
Fig. 4 is dolly schematic diagram in hardware configuration of the present invention;
Fig. 5 is the A direction view of Fig. 4;
Fig. 6 is hardware configuration middle guide schematic diagram of the present invention;
Fig. 7 is feeler mechanism schematic diagram in hardware configuration of the present invention;
Fig. 8 is special welding gun schematic diagram in hardware configuration of the present invention;
Fig. 9 is the connection diagram of step drive device of the present invention;
Figure 10 is the structural representation of welding bead of the present invention;
Code name implication in figure: 1-guide ring, 2-dolly, 3-guide rail, 4-support, 5-welding gun, 6-jockey, 7-control cable, 8-drive car, 9-device for fixing running tracks, 10-control cable, 11-step drive device, 11.1-stepper motor, 11.2-drive, 11.3-pull rope, 11.4-decelerator, 12-traveller, 13-chute, 14-arc welding gun head, 15-wire feed cable, M-treat that overlaying surface, Z-turn round cross section, L-rotary middle spindle.
Detailed description of the invention
As shown in Fig. 1 ~ 10, the inner circumferential curved surface of steam turbine guide ring 1 is abnormal curved surface, be made up of with the Cylinder Surface being positioned at arc-shaped curved surface two ends the arc-shaped curved surface of arc-shaped ring groove, the cross section molded line of this abnormal curved surface is that arc and the straightway being positioned at arc two ends are formed, on the same line, arc and straightway joint portion camber line seamlessly transit two straightways.The automatic surfacing device of steam turbine guide ring 1 inner circumferential curved surface of the present invention comprises: the dolly 2 be concentrically disposed in the ring-shaped guide rail 3 on guide ring 1 end face, moving in a circle along guide rail 3, the welding gun 5 being fixed on the support 4 on dolly 2 by jockey 6 and being arranged on support 4.
Support 4 there is the profiling chute 13 consistent with guide ring 1 inner circumferential surface rotation cross section Z-shaped, have adaptive traveller 12 in this chute 13, can reciprocatingly slide in profiling chute 13.Welding gun 5 is arranged on the end face of traveller 12, and its rifle head points to the negative camber of guide ring 1 from normal direction.Traveller 12 is driven by step drive device 11, step distance is the width of a welding bead, the forward and reverse operation of step drive device 11, and traveller 12 reciprocal stepping in profiling chute 13 can be made to slide, concrete: traveller 12 is further every, and welding gun 5 i.e. a corresponding welding bead; All pass sequence arrangements that the unidirectional stepping stroke of traveller 12 1 is formed, a formation overlay cladding.Dolly 2 fortune circles, and completes the welding of a welding bead.According to above-mentioned state, all welding beads of an overlay cladding can be welded by traveller 12, dolly 2 alternating movement one by one, and traveller 12 back and forth stepping, can weld the overlay cladding of multiple overlap.
As shown in Figure 9, step drive device 11 is made up of stepper motor 11.1, drive 11.2 and two pull ropes 11.3, and one end of two pull ropes 11.3 ties up on traveller 12, and the other end ties up to also tensioning on drive 11.2, forms a closed-loop drive loop.The forward and reverse running of stepper motor 11.1, drives the forward and reverse stepping of drive 11.2 to rotate, and draws traveller 12 reciprocal stepping in profiling chute 13 slide by pull rope 11.3.This stepper motor 11.1 is furnished with decelerator 11.4.In addition, drive car 8 comprises motor and decelerator, namely dolly 2 by motor through decelerator deceleration.
Drive car 8 and step drive device 11 are also furnished with automatic controller, have control program.This control program meets following relation: after the unidirectional stepping stroke of traveller 12 1 completes, the distance of half weld width that moves forward, and then backstepping, and the welding bead of multiple overlay cladding is overlapped, and piles up in fish scale-shaped overlap as shown in Figure 10.
The present invention adopts following specific embodiments to realize:
As depicted in figs. 1 and 2, at the guide rail 3 of non-facing surface erection for specifying dolly 2 moving direction of guide ring 1, install on dolly 2 and the support 4 with the profiling chute 13 treating facing surface form fit.Special welding gun 5 is arranged on the traveller 12 in profiling chute 13, moves under program along profiling chute 13, and moves along guide rail 3 along with dolly 2.
Dolly 2 as shown in Figures 4 and 5, is made up of drive car 8, car body, control cable 7 and jockey 6.Wherein: drive car 8 is positioned at below car body, limit dolly 2 firm stable on guides 3 under driven by motor, and provide power for dolly 2, trailer wagon 2 moves along guide rail 3.Car body is for installing all the other necessary assemblies of various driving, control, supporting trolley 2.Jockey 6, for support 4 is fixed on dolly 2, controls cable 7 for connecting program control system, to obtain and feedback control signal.Dolly 2 moves along guide rail 3 around the centre of gyration under program.
Guide rail 3 as shown in Figure 6, guide rail 3 is fixedly connected with multiple device for fixing running tracks 9.Wherein: guide rail 3 is annular, and the diameter matches of its diameter and guide ring 1, to make the motion track of dolly 2 and to treat that the tactical diameter of overlaying surface M mates.Device for fixing running tracks 9 is positioned at below guide rail 3, and for guide rail 3 being fixed on the non-facing surface of guide ring 1, fixed form is magnetic absorption or mechanical connection, and device for fixing running tracks 9 is preferably evenly arranged along guide rail 3.
As shown in Figure 7, be made up of chute 13, traveller 12, control cable 10 and step drive device 11, support 4 is fixed on the side of dolly 2 by jockey 6 to support 4, and support 4 moves around the centre of gyration with dolly 2.Wherein: what shape and the guide ring 1 of support 4 side turned round cross section Z waits that piling the profiling of toe profile mates, and profiling spot size is less than and treats heap toe profile, and this side is provided with chute 13.Chute 13 is for installing the mobile route of step drive device 11 and traveller 12, restriction traveller 12, and special welding gun 5 is arranged on traveller 12 front end and is connected with step drive device 11.Step drive device 11 is made up of belt or chain, slides under the driving of stepper motor 11.1, along chute 13.Control cable 10 for connecting dolly 2, to obtain and feedback control signal.。
Special welding gun 5 as shown in Figure 8, is made up of arc welding gun head 14 and wire feed cable 15.Wherein: arc welding gun head 14 is arranged on traveller 12 front end, that under the drive of step drive device 11, along guide ring 1, turns round cross section Z treats that heap toe moves back and forth.In moving process, arc welding gun head 14 all the time perpendicular to treating facing surface, and remains and treats overlaying surface M certain distance, and this distance is regulated within the specific limits by the welding gun mount pad of traveller 12 front end.Wire feed cable 15 is fixed on dolly 2, moves with dolly 2, its small volume, does not affect it along treating that facing surface upset is mobile.Special welding gun 5 is arranged on support 4, and the imitation profile by support 4 limits, under program along guide ring 1 turn round cross section Z treat heap toe move.
Program control system controls dolly 2 by the instruction of the program that presets or artificial instant input and moves along guide rail 3, controls special welding gun 5 and moves along the profiling chute 13 on support 4, starting the arc when controlling special welding gun 5 built-up welding with receive arc.
Large revolving body parts compromise face austenitic stainless steel automatic surfacing method based on the above hardware configuration is as follows:
1, at engineering site, after installing by the above hardware configuration, adopt austenitic stainless steel welding wire as resurfacing welding material, manually move to the initial welding position that rises by program control system control dolly 2 and special welding gun 5 and put.
2, under the programme-control preset, program control system controls the starting the arc of special welding gun 5, then by dolly 2 drive special welding gun 5 guide ring 1 treat on facing surface at the uniform velocity stably reciprocating along parts rotating direction, and in the process constantly wire feed pile up weld seam;
3, after being soldered one weld seam, controlling special welding gun 5 by program control system and receive arc, and move to down one weld seam position to be welded along the profiling chute 13 on support 4, realize special welding gun 5 and move along lapping direction between road;
4, the starting the arc again of special welding gun 5 is controlled by program control system, and at the uniform velocity stablize travelling car 2 along the direction that front one weld seam is contrary, constantly wire feed piles up weld seam in the process, after completing the welding of second weld seam, arc received by special welding gun 5, and moves to the initial weld of the 3rd road weld seam along the profiling chute 13 on support 4;
5, as above-mentioned 2 ~ 4 step, test weld rifle 5 is alternately mobile along both direction, and in the process the starting the arc with receive arc, complete whole automatic surfacing process.
In addition, before playing weldering, welding gun 5 is adjusted apart from treating that the distance of overlaying surface M can realize multiple-bead deposit by the welding gun mount pad of traveller 12 front end.
Claims (5)
1. a steam turbine guide ring inner circumferential curved surface automatic surfacing device, comprise the ring-shaped guide rail be concentrically disposed on guide ring end face, along the dolly that guide rail moves in a circle, be fixed on the support on dolly, rack-mount welding gun, it is characterized in that, the inner circumferential curved surface of described guide ring is abnormal curved surface, be made up of with the Cylinder Surface being positioned at arc-shaped curved surface two ends the arc-shaped curved surface of arc-shaped ring groove, the cross section molded line of this abnormal curved surface is that arc and the straightway being positioned at arc two ends are formed, two straightways on the same line, arc and straightway joint portion camber line seamlessly transit, described support has the profiling chute consistent with guide ring inner circumferential curved surface molded line, have adaptive traveller in this chute, can reciprocatingly slide in profiling chute, described welding gun is arranged on the end face of traveller, and its rifle head points to guide ring negative camber from normal direction, described traveller is driven by step drive device, step distance is the width of a welding bead, the forward and reverse operation of step drive device, traveller reciprocal stepping in profiling chute can be made to slide, traveller is often further, welding gun i.e. a corresponding welding bead, all pass sequence arrangements that the unidirectional stepping stroke of traveller one is formed, form an overlay cladding, described dolly fortune circles, and completes a pass weld, traveller, dolly alternating movement, all welding beads of an overlay cladding can be welded one by one, the reciprocal stepping of traveller, can weld the overlay cladding of multiple overlap.
2. steam turbine guide ring inner circumferential curved surface automatic surfacing device as claimed in claim 1, it is characterized in that, described step drive device is made up of stepper motor, transmission mechanism, described transmission mechanism is made up of drive and two pull ropes, one end of pull rope ties up on traveller, the other end ties up to also tensioning on drive, form a closed-loop drive loop, the forward and reverse running of stepper motor, drive the forward and reverse stepping of drive to rotate, slided by the reciprocal stepping in profiling chute of pull rope traction traveller.
3. steam turbine guide ring inner circumferential curved surface automatic surfacing device as claimed in claim 2, it is characterized in that, described stepper motor is furnished with decelerator.
4. steam turbine guide ring inner circumferential curved surface automatic surfacing device as claimed in claim 1, is characterized in that, described dolly by motor through decelerator deceleration.
5. steam turbine guide ring inner circumferential curved surface automatic surfacing device as claimed in claim 1, it is characterized in that, this device is furnished with automatic controller, there is control program, this control program meets following relation: after the unidirectional stepping stroke of traveller one completes, move forward the distance of half weld width, and then backstepping, makes multiple overlay cladding be that fish scale-shaped overlap is piled up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410565520.7A CN104289841A (en) | 2014-10-22 | 2014-10-22 | Automatic surfacing device for inner curved surface of guide ring of turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410565520.7A CN104289841A (en) | 2014-10-22 | 2014-10-22 | Automatic surfacing device for inner curved surface of guide ring of turbine |
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| Publication Number | Publication Date |
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| CN104289841A true CN104289841A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410565520.7A Pending CN104289841A (en) | 2014-10-22 | 2014-10-22 | Automatic surfacing device for inner curved surface of guide ring of turbine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345490A (en) * | 2015-12-15 | 2016-02-24 | 济南天辰铝机股份有限公司 | Frame slide type multi-surface scribing and cutting device |
| CN105414826A (en) * | 2015-12-15 | 2016-03-23 | 济南天辰铝机股份有限公司 | Multi-surface marking-off and cutting device with fixed rack |
| CN107052624A (en) * | 2016-11-30 | 2017-08-18 | 北京科慧通智慧科技有限公司 | Multistation Intelligent welding robot |
| CN110039395A (en) * | 2019-04-17 | 2019-07-23 | 吴雪杏 | A kind of new-energy automobile exhaust pipe soldering equipment |
| CN112935605A (en) * | 2021-01-22 | 2021-06-11 | 东方电气集团东方汽轮机有限公司 | Automatic surfacing method for corrosion-resistant layer of annular part with special-shaped section |
| CN113649738A (en) * | 2021-09-07 | 2021-11-16 | 二重（德阳）重型装备有限公司 | Irregular rotary cavity wall surfacing track obtaining method and full-automatic surfacing method thereof |
| CN115229399A (en) * | 2022-09-23 | 2022-10-25 | 北京石油化工学院 | Alpha-shaped section flow guide ring surfacing robot, robot design method and welding method |
| CN117206633A (en) * | 2023-11-09 | 2023-12-12 | 二重（德阳）重型装备有限公司 | Surfacing equipment and surfacing method for pump shell of nuclear power main pump |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345490A (en) * | 2015-12-15 | 2016-02-24 | 济南天辰铝机股份有限公司 | Frame slide type multi-surface scribing and cutting device |
| CN105414826A (en) * | 2015-12-15 | 2016-03-23 | 济南天辰铝机股份有限公司 | Multi-surface marking-off and cutting device with fixed rack |
| CN105345490B (en) * | 2015-12-15 | 2017-09-29 | 济南天辰铝机股份有限公司 | Housing slide formula multiaspect marking-out cutter |
| CN107052624A (en) * | 2016-11-30 | 2017-08-18 | 北京科慧通智慧科技有限公司 | Multistation Intelligent welding robot |
| CN110039395A (en) * | 2019-04-17 | 2019-07-23 | 吴雪杏 | A kind of new-energy automobile exhaust pipe soldering equipment |
| CN112935605A (en) * | 2021-01-22 | 2021-06-11 | 东方电气集团东方汽轮机有限公司 | Automatic surfacing method for corrosion-resistant layer of annular part with special-shaped section |
| CN113649738A (en) * | 2021-09-07 | 2021-11-16 | 二重（德阳）重型装备有限公司 | Irregular rotary cavity wall surfacing track obtaining method and full-automatic surfacing method thereof |
| CN113649738B (en) * | 2021-09-07 | 2022-07-26 | 二重（德阳）重型装备有限公司 | Irregular rotary cavity wall surfacing track obtaining method and full-automatic surfacing method thereof |
| CN115229399A (en) * | 2022-09-23 | 2022-10-25 | 北京石油化工学院 | Alpha-shaped section flow guide ring surfacing robot, robot design method and welding method |
| CN117206633A (en) * | 2023-11-09 | 2023-12-12 | 二重（德阳）重型装备有限公司 | Surfacing equipment and surfacing method for pump shell of nuclear power main pump |
| CN117206633B (en) * | 2023-11-09 | 2024-02-20 | 二重（德阳）重型装备有限公司 | Surfacing equipment and surfacing method for pump shell of nuclear power main pump |
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Application publication date: 20150121 |