CN102500660A - Integral correction device for long and thin beam structure and correction method - Google Patents
Integral correction device for long and thin beam structure and correction method Download PDFInfo
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- CN102500660A CN102500660A CN2011103708780A CN201110370878A CN102500660A CN 102500660 A CN102500660 A CN 102500660A CN 2011103708780 A CN2011103708780 A CN 2011103708780A CN 201110370878 A CN201110370878 A CN 201110370878A CN 102500660 A CN102500660 A CN 102500660A
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Abstract
The invention discloses an integral correction device for a long and thin beam structure and a correction method, and belongs to the field of welded structure correction. In order to solve the problem in the prior art that the long and thin beam structure is liable to deform during the welding process, the correction device is formed by assembling a plurality of correction units, and two adjacent correction units are fixedly connected through a connection mechanism, wherein each correction unit structurally comprises an adjusting support, a platform which is arranged on the adjusting support and used for carrying a beam and compaction mechanisms which are arranged on the two sides of the platform and used for compacting the beam. The correction method adopts the correction device to correct the long and thin beam structure with good correction effect. The invention effectively overcomes the difficulty in correction process of the beam due to length, tool and other factors, can integrally handle welding deformation of the beam, makes the correction process more centralized and simple, greatly increases work efficiency, and reduces the labor intensity of workers.
Description
Technical field
The present invention relates to a kind of Welding Structure and correct the field, be specially a kind of integral correction device and antidote of growing thin beam string structure, the postwelding that is mainly used in the long thin string beam of electric locomotive car body is corrected, and also is applicable to the rectification of other similarly long thin girder construction.
Background technology
At HX
D1B, HX
DEvery chassis has 4 string beams in the locomotive car body side structures such as 1C; Be the slender type girder construction that is surrounded by the thick inner panel of 6mm, outside plate, the cross section that inner panel, outside plate surround surrounds an irregular quadrangle in the zone of 150mm * 150mm, and the length of string beam reaches 16m; Prior art adopts segmentation assembly welding, rectification usually to the thin beam string structure of this length; Each section is spliced into integral body after accomplishing assembling, welding, rectification separately again, more whole string beam corrected afterwards.Loaded down with trivial details, the dispersion of the method operation of this segmentation assembly welding, rectification, operating efficiency is not high, and not too suitable the employing automatically welded.
For satisfying the locomotive requirements of large-scale production; Automatic special welding machine is adopted in the welding of side structure string beam; Replace the manual welding of string beam; String beam assembly welding, the essential optimization of correction process, requirement is corrected whole string beam overall package, welding again, and the present invention is exactly the integral correction proposition solution to the thin beam string structure of this length.
Summary of the invention
The deficiency of easy deformation when welding in order to overcome the thin beam string structure of existing length, the present invention aims to provide a kind of integral correction device of growing thin beam string structure, and this apparatus for correcting can solve the rectification critical technological point that the string beam produces because of factors such as length, frocks effectively.
To achieve these goals, the technical scheme that the present invention adopted is:
A kind of integral correction device of growing thin beam string structure, its design feature are that it is spliced by the more piece correcting unit, is fixedly linked through bindiny mechanism between the adjacent two joint correcting units; The structure of said correcting unit does, comprises the adjusting bearing, is contained in the platform of regulating on the bearing that is used to place the string beam, and said platform both sides are equipped with and are contained in the hold-down mechanism that is used to compress the string beam on the platform.
Pound earthward when preventing that hold-down mechanism from opening and prevent that the string beam from leaving frock and falling earthward in turn-up process, said hold-down mechanism side-lower is provided with carriage.
Said hold-down mechanism is preferably turning screw thread hold-down mechanism.
In order to guarantee rectification effect, the flatness on the last plane of said platform is not more than 0.5mm.
For the ease of quick rectification, said platform both sides are equipped with and movably are contained in the C clamp that is used to compress the string beam on the platform.
Further, the invention provides a kind of integral correction device that utilizes the above-mentioned thin beam string structure of length, the steps include: growing the method that thin beam string structure is corrected
1), after the string beam is accomplished welding, open the hold-down mechanism of apparatus for correcting, and lean against on the carriage, treat after the weld seam cooling that the flatness that the string beam is placed on the plane is not more than on the platform of 0.5mm, is fixed the string beam through hold-down mechanism then;
2), begin to correct from the position that hold-down mechanism compresses the string beam; Correcting temperature is 500 ℃～650 ℃, adopts the oxy-acetylene neutral flame to heat, and in heating, utilizes hold-down mechanism that the string beam is compressed; And apply external force, stand curved, side sway rectification;
3), in the transfer process upright curved, that side sway is corrected, hold-down mechanism is opened, lean against on the carriage, the string beam is carried out flange;
4), behind the integral correction of accomplishing the string beam, find out local salient point and mark, then salient point is finely tuned, less than 2mm/2m, whole upright curved, the side sway of string beam all is not more than 4mm up to string beam linearity.
For producing diastrophic workpiece, when workpiece is in when standing up state, the flexural deformation of above-below direction is called upright curved, and the flexural deformation to both sides is called side sway.
The atomized water spray type of cooling is adopted in cooling after the position of adopting the oxy-acetylene neutral flame to correct during rectification is heated to 500 ℃～650 ℃; Cooling velocity is fast; The order of atomized water spray and the sequence consensus of warming oneself by a fire; Can not a little still can spray during the show look warming oneself by a fire, avoid the steel interior tissue to change.
The movably C clamp that employing is located at the platform both sides applies external force to the string beam.
The method of wire heating and triangle heating is adopted in said upright curved rectification, heating spacing 500mm～600mm, live width 30mm～40mm; Finish with triangle the line both sides; The triangle form height is 35mm～50mm, and during heating, leg-of-mutton base is the side of string beam to arch.
The method of wire heating is adopted in the rectification of said side sway, and heating spacing 300mm～500mm, live width 20mm, hot spot as much as possible and the heating of staggering avoid occurring dog leg.
By said structure, the present invention is directed to locomotive side structure beam string structure, and, designed and produced the frock of suitable string beam integral correction according to string beam deformation characteristics.
Compared with prior art, the invention has the beneficial effects as follows: this antidote can integrally be handled the welding deformation than the long-chord beam, makes correction process more concentrated, simple, effectively raises operating efficiency.In conjunction with the use of special tooling, alleviated working strength of workers greatly, specifically,
1. the present invention is particularly useful for the postwelding rectification of the long thin string beam of electric locomotive car body, also is applicable to the rectification of other similarly long thin girder construction.
2. frock of the present invention has the hold-down mechanism carriage, prevents to smash when hold-down mechanism from opening ground or brings injury to the operator.
3. hold-down mechanism of the present invention drops on the carriage when opening, and can prevent that the string beam from leaving frock and falling earthward in the process of flange, thus do not need the string beam is sling during flange, can be by instrument with string beam direct flange on frock.
4. the present invention can successively be corrected on the frock both sides or corrected simultaneously on the frock both sides by two workmans by a workman.
5. the present invention is in flame heat, the hold-down mechanism on the frock capable of using and movably C clamp apply external force, improve and correct efficient.
6. the present invention adopts the water smoke cooling to the flame heat position, has improved cooling velocity effectively.
Below in conjunction with accompanying drawing and embodiment the present invention is done further elaboration.
Description of drawings
Fig. 1 is the structure principle chart of an embodiment of the present invention;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the state diagram of Fig. 2 when hold-down mechanism is shown in an open position.
1-bindiny mechanism; The 2-hold-down mechanism; The 3-platform; The 4-carriage; 5-regulates bearing.
The specific embodiment
A kind of integral correction device of growing thin beam string structure, as shown in Figure 1, it is spliced by the more piece correcting unit, is fixedly linked through bindiny mechanism 1 between the adjacent two joint correcting units; As shown in Figure 2; The structure of said correcting unit does, comprises regulating bearing 5, is contained in the platform of regulating on the bearing 53 that is used to place the string beam; The flatness on the last plane of this platform 3 is not more than 0.5mm; Said platform 3 both sides are equipped with and are contained in the hold-down mechanism 2 that is used to compress the string beam on the platform 3, and said hold-down mechanism 2 is preferably turning screw thread hold-down mechanism, and these hold-down mechanism 2 side-lowers are provided with carriage 4.Said platform 3 both sides are equipped with and movably are contained in the C clamp that is used to compress the string beam on the platform 3.
According to the characteristics of beam string structure and welding deformation thereof, design the string beam and corrected frock such as Fig. 1, shown in Figure 2, the frock total length is 16860mm, is spliced by 4 joints.Hold-down mechanism 2 is turning screw thread hold-down mechanism, and is as shown in Figure 3, and hold-down mechanism outwards overturns, opens during workpiece loading and unloading; In string beam correcting process, hold-down mechanism 2 is in position shown in Figure 2, in flame heat, utilizes 2 pairs of string beams of hold-down mechanism to compress; Apply external force; Improve and correct efficient, on frock, do not have the position of hold-down mechanism 2 can adopt commercial movably C clamp that the string beam is compressed in case of necessity, apply external force.The string beam need not sling when flange, only needs can accomplish string beam flange with instrument, and is as shown in Figure 3, and this moment, hold-down mechanism 2 was opened, and leaned against on the carriage 4, played position-limiting action, prevented that the string beam lands.Platform 3 is accomplished the removal internal stress of annealing behind the assembly welding in the manufacturing process of itself, and then processing goes up the plane, and the flatness on plane is not more than 0.5mm in the assurance.Regulate bearing 5 and be used to regulate the frock height, guarantee not misplace when 4 joint frocks are spliced into whole frock, and the flatness of whole frock is not more than 1mm.Bindiny mechanism 1 is used for 4 joint frocks are fastenedly connected into whole frock.Carriage 4 is used for when hold-down mechanism 2 is opened, holding hold-down mechanism 2, guarantees operator's safety and protects ground.
After the string beam is accomplished welding, treat after the weld seam cooling string beam to be hung in above-described rectification frock, as shown in Figure 3, this moment, the hold-down mechanism 2 of frock was opened, and leaned against on the carriage 4.After the string beam hangs in frock, hold-down mechanism 2 is retracted to position shown in Figure 2, utilize the hold-down mechanism 2 of frock to be fixed the string beam.Begin to correct from the position that the string beam compresses then, correct about 500 ℃～650 ℃ of temperature, perusal is dark cherry red, adopts the oxy-acetylene neutral flame to heat.At first correct upright bending, and then correct side sway, the method that upright curved rectification adopts wire and triangle to heat; Abandon original segmentation and correct the point-like heating means that adopt; Operating efficiency more originally improved a lot, about heating spacing 500mm～600mm, about live width 30mm～40mm; Finish with triangle the line both sides, and the triangle form height is about 35mm～50mm.The method of wire heating is adopted in the rectification of side sway, about heating spacing 300mm～500mm, about live width 20mm.Hot spot should be as much as possible and the heating of staggering several times, avoids occurring dog leg.During heating; Leg-of-mutton base should be on the one side to arch of being corrected structure; In heating, utilize 2 pairs of string beams of hold-down mechanism of frock to compress; Apply external force, on frock, do not have the position of hold-down mechanism 2 can adopt commercial movably C clamp that the string beam is compressed in case of necessity, apply external force.The type of cooling is by original air-cooled atomized water spray type of cooling that changes into, and the order of atomized water spray and the sequence consensus of warming oneself by a fire can not a little still can be sprayed during the show look warming oneself by a fire, and avoid the steel interior tissue to change.In founding the transfer process curved, that side sway is corrected, need carry out flange to the string beam, as shown in Figure 3, open hold-down mechanism 2 this moment, leans against on the carriage 4, and an end that utilizes light instrument to be stuck in the string beam can be accomplished flange.Behind the integral correction of accomplishing the string beam, use length to find out local salient point as the leveling ruler of 2m, use the slate pencil mark, then salient point is finely tuned.
Use said method, can accomplish the integral correction of long thin string beam, correct the rear chord beam linearity less than 2mm/2m, upright curved, side sway is not more than 4mm in length range.
The content that the foregoing description is illustrated is to be understood that to these embodiment and only is used to be illustrated more clearly in the present invention; And be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Claims (10)
1. the integral correction device of a long thin beam string structure is characterized in that, it is spliced by the more piece correcting unit, is fixedly linked through bindiny mechanism (1) between the adjacent two joint correcting units; The structure of said correcting unit is to comprise and regulate bearing (5) that be contained in the platform of regulating on the bearing (5) that is used to place the string beam (3), said platform (3) both sides are equipped with and are contained in the hold-down mechanism (2) that is used to compress the string beam on the platform (3).
2. the integral correction device of the thin beam string structure of length according to claim 1 is characterized in that, said hold-down mechanism (2) side-lower is provided with carriage (4).
3. the integral correction device of the thin beam string structure of length according to claim 1 is characterized in that, said hold-down mechanism (2) is turning screw thread hold-down mechanism.
4. the integral correction device of the thin beam string structure of length according to claim 1 is characterized in that, the flatness on the last plane of said platform (3) is not more than 0.5mm.
5. the integral correction device of the thin beam string structure of length according to claim 1 is characterized in that, said platform (3) both sides are equipped with the movably C clamp that is used to compress the string beam.
6. an integral correction device that utilizes the thin beam string structure of the described length of one of claim 1～5 the steps include: growing the method that thin beam string structure is corrected
1), after the string beam is accomplished welding, open the hold-down mechanism (2) of apparatus for correcting, and lean against on the carriage (4), treat after the weld seam cooling string beam to be placed on the platform (3), be fixed the string beam through hold-down mechanism (2) then;
2), begin to correct from the position that hold-down mechanism (2) compresses the string beam; Correcting temperature is 500 ℃～650 ℃, adopts the oxy-acetylene neutral flame to heat, and in heating, utilizes hold-down mechanism (2) that the string beam is compressed; And apply external force, stand curved, side sway rectification;
3), in the transfer process upright curved, that side sway is corrected, hold-down mechanism (2) is opened, lean against on the carriage (4), the string beam is carried out flange;
4), behind the integral correction of accomplishing the string beam, find out local salient point and mark, then salient point is finely tuned, less than 2mm/2m, whole upright curved, the side sway of string beam all is not more than 4mm up to string beam linearity.
7. the thin beam string structure antidote of length according to claim 6 is characterized in that step 2) in, the atomized water spray type of cooling is adopted in the cooling after the position of adopting the oxy-acetylene neutral flame to correct during rectification is heated to 500 ℃～650 ℃
8. the thin beam string structure antidote of length according to claim 6 is characterized in that, adopts the movably C clamp that is located at platform (3) both sides that the string beam is applied external force.
9. the thin beam string structure antidote of length according to claim 6 is characterized in that, the method for wire heating and triangle heating is adopted in said upright curved rectification; Heating spacing 500mm～600mm; Live width 30mm～40mm, finish with triangle the line both sides, and the triangle form height is 35mm～50mm; During heating, leg-of-mutton base is the side of string beam to arch.
10. the thin beam string structure antidote of length according to claim 6 is characterized in that, the method for wire heating is adopted in the rectification of said side sway, and heating spacing 300mm～500mm, live width 20mm, hot spot are as much as possible and the heating of staggering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103708780A CN102500660A (en) | 2011-11-21 | 2011-11-21 | Integral correction device for long and thin beam structure and correction method |
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| CN2011103708780A CN102500660A (en) | 2011-11-21 | 2011-11-21 | Integral correction device for long and thin beam structure and correction method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103272889A (en) * | 2013-06-08 | 2013-09-04 | 柳州五菱汽车有限责任公司 | Flattening tool and device of longitudinal welds of rear axle packet |
| CN105710163A (en) * | 2016-04-21 | 2016-06-29 | 中船黄埔文冲船舶有限公司 | Hull flame deformation correction auxiliary tooling |
| CN107962087A (en) * | 2017-12-27 | 2018-04-27 | 中国核工业二四建设有限公司 | A kind of nuclear power station twin webbed t beam correction frock and its antidote |
| CN109332427A (en) * | 2018-09-17 | 2019-02-15 | 中车大连机车车辆有限公司 | A kind of welding structure heating antidote |
| CN110340611A (en) * | 2019-06-06 | 2019-10-18 | 国家电投集团黄河上游水电开发有限责任公司 | Method for repairing cracking of vibrating table of anode carbon block vibration forming machine |
| CN111014358A (en) * | 2019-11-22 | 2020-04-17 | 国网浙江省电力有限公司嘉兴供电公司 | Transmission line crimping pipe unscrambler |
| CN111036714A (en) * | 2019-12-20 | 2020-04-21 | 福建省水利水电工程局有限公司 | Method for correcting deformation of steel gate leaf panel |
| CN112742895A (en) * | 2019-10-29 | 2021-05-04 | 中船海洋动力部件有限公司 | Correction method of vibration simulation platform with size difference of table top |
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Cited By (10)
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| CN103272889A (en) * | 2013-06-08 | 2013-09-04 | 柳州五菱汽车有限责任公司 | Flattening tool and device of longitudinal welds of rear axle packet |
| CN103272889B (en) * | 2013-06-08 | 2016-04-27 | 广西汽车集团有限公司 | The pressing frock of back axle bag longitudinal seam and flattening equipment |
| CN105710163A (en) * | 2016-04-21 | 2016-06-29 | 中船黄埔文冲船舶有限公司 | Hull flame deformation correction auxiliary tooling |
| CN107962087A (en) * | 2017-12-27 | 2018-04-27 | 中国核工业二四建设有限公司 | A kind of nuclear power station twin webbed t beam correction frock and its antidote |
| CN109332427A (en) * | 2018-09-17 | 2019-02-15 | 中车大连机车车辆有限公司 | A kind of welding structure heating antidote |
| CN110340611A (en) * | 2019-06-06 | 2019-10-18 | 国家电投集团黄河上游水电开发有限责任公司 | Method for repairing cracking of vibrating table of anode carbon block vibration forming machine |
| CN112742895A (en) * | 2019-10-29 | 2021-05-04 | 中船海洋动力部件有限公司 | Correction method of vibration simulation platform with size difference of table top |
| CN112742895B (en) * | 2019-10-29 | 2023-02-28 | 中船海洋动力部件有限公司 | Correction method of vibration simulation platform with size difference of table top |
| CN111014358A (en) * | 2019-11-22 | 2020-04-17 | 国网浙江省电力有限公司嘉兴供电公司 | Transmission line crimping pipe unscrambler |
| CN111036714A (en) * | 2019-12-20 | 2020-04-21 | 福建省水利水电工程局有限公司 | Method for correcting deformation of steel gate leaf panel |
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Application publication date: 20120620 |