CN101912902B - Integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine - Google Patents
Integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine Download PDFInfo
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- CN101912902B CN101912902B CN2010102412559A CN201010241255A CN101912902B CN 101912902 B CN101912902 B CN 101912902B CN 2010102412559 A CN2010102412559 A CN 2010102412559A CN 201010241255 A CN201010241255 A CN 201010241255A CN 101912902 B CN101912902 B CN 101912902B
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Abstract
The invention discloses an integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine. A U-shaped pressure straightening head of the conventional straightening machine is provided with an ultrasonic excitation mechanism consisting of two sliding cylinders and an ultrasonic excitation device, wherein the ultrasonic excitation device comprises an ultrasonic excitation head, two cylinders and two cylinder positioning blocks; the ultrasonic excitation head consists of an amplitude transformer and an energy converter; the two cylinder positioning blocks are arranged on the U-shaped pressure straightening heads on the same side of a T-shaped guide rail; both push rods of the two cylinders are connected with the ultrasonic excitation head; the amplitude transformer faces a guide surface on one side of the T-shaped guide rail and is positioned above a pressure head; the two sliding cylinders are arranged on the other side of the U-shaped pressure straightening head and arranged on the two sides of a laser sensor; and the push rods of the cylinders face the guide surface on the other side of the T-shaped guide rail. Ultrasonic excitation can eliminate internal stress produced in the guide rail during the straightening and reduce the influence of residual stress on the straightening quality, so the potential quality problem of the guide rail after the guide rail leaves factory is reduced; and the degree of automation is high.
Description
Technical field
The present invention relates to T type guide rail automatic flattening machine, especially relate to a kind of T type guide rail automatic flattening machine of integrated ultrasonic destressing.
Background technology
Pressure recurvation aligning is a kind of popular method of present elevator T type guide rail aligning.Aligning utilizes the rule imposed load of " straighten crooked must excessively just " that the guide rail of original curved is oppositely bent, and makes reverse press-bending amount just in time equal the spring-go amount to reach the purpose of aligning.Elastic-plastic deformation in the generation of an aligning loading procedure middle guide part, by the guide rail both sides of the edge begin to produce gradually the plastically deforming area and gradually to the elastic region transition until neutral line, after shedding load, the part that plastic deformation has taken place can not be recovered its original size, will hinder the recovery of elastic part distortion, thereby produce interactional stress internally, it is residual stress, seeing from energy point of view can be in the inner residual amount of energy that produces of guide rail, as long as the balance of residual stress is not broken, can just can not discharge in this, it increases along with the increase of plastically deforming area area, reach maximum in the middle of the fulcrum on the cross section at maximum recurvation amount of deflection place, reduce that section vanishing gradually to two fulcrum places then until the perfect elasticity distortion.
So the aligning result who obtains like this is the temporary transient aligning on the profile, it is a kind of new state of crossing crooked mutual balance crooked and outer plastic zone of owing in guide rail neutral line two-side elastic district.Yet this poised state is not very stable, just is being easy to unbalancely to make the guide rail after aligning become curved once more under the extraneous condition effect.This is an inevitable problem when sending out aligning with the pressure recurvation, even it makes guide rail no problem when dispatching from the factory delivery, but it also must have some hidden danger in the future.Therefore, in the aligning process, preferably adopt some measures to go to eliminate the residual stress of guide rail inside, to reduce hidden danger of quality in the future as far as possible.
Summary of the invention
The object of the present invention is to provide a kind of T type guide rail automatic flattening machine of integrated ultrasonic destressing, this compact equipment, and in the aligning process, utilize the ultrasonic action head to eliminate the residual stress of guide rail inside, automaticity height.
In order to achieve the above object, the present invention adopts following technical scheme:
It comprises the T type guide rail that installation is aligned on the guide supporting roller that is arranged on the support both sides, two guide supporting roller inboards one group of fixed support is installed respectively, two fixed supports in every group of fixed support are installed in respectively on the support on T type guide rail both sides, every group of fixed support inboard is provided with a pressure head respectively, every group of pressure head all is positioned at the both sides of T type guide rail bottom, two rail plates are arranged on the middle support of two groups of fixed supports, a U-shaped gag press straightening top is across on T type guide rail both sides, a U-shaped gag press straightening bottom and two rail plates are slidingly connected, pressure head on the U-shaped gag press straightening head is positioned at the both sides of T type guide rail bottom, the push rod that is installed in the servo hydraulic cylinder on the support is connected with U-shaped gag press straightening head, on two fixed supports of the same side and U-shaped gag press straightening head, a laser displacement sensor is set all, laser displacement sensor all is positioned at each pressure head top, and three laser displacement sensors are over against the homonymy spigot surface of T type guide rail.The ultrasonic exciting agency of being made up of two slip cylinders and ultrasonic action device is installed on U-shaped gag press straightening head; Wherein the ultrasonic action device comprises the ultrasonic exciting head of being made up of luffing bar and transducer, two cylinders and two cylinder locating pieces, two cylinder locating pieces are arranged on the U-shaped gag press straightening head of T type guide rail the same side, two cylinder afterbodys are connected with cylinder locating piece separately respectively, and the push rod of two cylinders all is connected with ultrasonic exciting head; The luffing bar is over against a side spigot surface of T type guide rail and be positioned at the top of pressure head; Two slip cylinders are installed on the U-shaped gag press straightening head opposite side and are arranged on the laser sensor both sides, and the push rod of two sliding cylinders is all over against the opposite side spigot surface of T type guide rail.
The useful effect that the present invention has is:
A kind of automatic flattening machine of residual stress after The present invention be directed to T type guide rail aligning and eliminating the guide rail aligning.Ultrasonic action can be eliminated the inner internal stress that produces of aligning process middle guide, obviously reduces the influence of residual stress to straightening quality, has reduced the hidden danger of quality of guide rail after dispatching from the factory; The automaticity height can carry out necessary destressing work to guide rail according to the linearity index of guide rail aligning.Its flattening precision and strong rear rail quality of stability all are better than traditional artificial pressure aligning, and have alleviated working strength of workers significantly, can realize the segmentation gag press straightening to T type guide rail side.
Description of drawings
Fig. 1 is the general structure schematic diagram of straightener.
Fig. 2 is that the A of Fig. 1 is to the partial structurtes schematic diagram.
Fig. 3 is that the B of Fig. 1 is to the partial structurtes schematic diagram.
Fig. 4 is the structural representation of ultrasonic exciting device.
Fig. 5 is the workflow diagram of whole straightener system.
Among the figure: 1, support; 2, servo hydraulic cylinder; 3, fixed support; 4, T type guide rail; 5, rail plate; 6, U-shaped gag press straightening head; 7, ultrasonic action device; 8, sliding cylinder; 9, guide supporting roller; 10, laser displacement sensor; 11, cylinder; 12, transducer; 13, cylinder locating piece; 14, luffing bar; 15, pressure head.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described further.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, comprise the T type guide rail 4 that installation is aligned on the guide supporting roller 9 that is arranged on support 1 both sides, two guide supporting roller 9 inboards one group of fixed support 3 is installed respectively, two fixed supports 3 in every group of fixed support 3 are installed in respectively on the support 1 on T type guide rail 4 both sides, every group of fixed support 3 inboards are provided with a pressure head 15 respectively, every group of pressure head all is positioned at the both sides of T type guide rail 4 bottoms, two rail plates 5 are arranged on the support 1 of two groups of fixed supports, 3 centres, U-shaped gag press straightening 6 top are across on T type guide rail 4 both sides, U-shaped gag press straightening 6 bottom and two rail plates 5 are slidingly connected, pressure head in the U-shaped gag press straightening 6 is positioned at the both sides of T type guide rail 4 bottoms, the push rod that is installed in the servo hydraulic cylinder 2 on the support 1 and U-shaped gag press straightening 6 is connected, in two fixed supports of the same side and gag press straightening 6, a laser displacement sensor 10 is set all, laser displacement sensor 10 all is positioned at each pressure head 15 top, and three laser displacement sensors are over against the homonymy spigot surface of T type guide rail 4.The ultrasonic exciting agency of being made up of two slip cylinders 8 and ultrasonic action device 7 is installed in U-shaped gag press straightening 6; Wherein ultrasonic action device 7 comprises the ultrasonic exciting head of being made up of luffing bar 14 and transducer 12, two cylinders 11 and two cylinder locating pieces 13, two cylinder locating pieces are arranged on the U-shaped gag press straightening head of T type guide rail 4 the same sides, two cylinder afterbodys are connected with cylinder locating piece separately respectively, and the push rod of two cylinders all is connected with ultrasonic exciting head; The luffing bar is over against a side spigot surface of T type guide rail 4 and be positioned at the top of pressure head; Two slip cylinders are installed on the U-shaped gag press straightening head opposite side and are arranged on the laser sensor both sides, and the push rod of two sliding cylinders is all over against the opposite side spigot surface of T type guide rail 4.
The present invention includes straightening mechanism, measuring mechanism and ultrasonic action mechanism.Aligning fulcrum and pressure spot place design gage outfit respectively to measure the amount of deflection of T type guide rail aligning section easily, promptly gage outfit is arranged on two end supports and the U-shaped straightening force head 6, measurement point is selected on the spigot surface of T type guide rail 4, can make measurement result more accurate like this; Ultrasonic action mechanism is fixed in the U gag press straightening 6, can finish contact and the motion that separates with T type guide rail under the driving of two cylinders and two sliding cylinders fast.
Straightening mechanism mainly comprises straightener support 1, fixed support, U-shaped gag press straightening 6, rail plate, servo hydraulic cylinder 2.Wherein four fixed supports are fixed on and have constituted two aligning fulcrums on the support 1; U-shaped gag press straightening 6 is arranged in the point midway of two fulcrum lines, by the rail plate guiding that is fixed on the support 1, can make the positioning accuracy of U-shaped gag press straightening 6 higher like this, moves more steady down in heavy load (power of about 100KN); Servo hydraulic cylinder 2 and U-shaped gag press straightening 6 is connected, and is fixed on the support 1; U-shaped gag press straightening 6 an employing U-shaped structure can realize that the two-way aligning of the guide rail under the single servo hydraulic cylinder loads, and make structure more compact, and cost is also corresponding to be reduced.
Linear motion bearing is adopted in 9 designs of guide supporting roller, mainly in order to reduce the frictional resistance of guide rail in aligning and destressing process.
Measuring mechanism mainly contains three laser displacement sensors and constitutes, and in the measurement shift value is converted into coordinate figure so that carry out the processing of data, will carefully carry out the staking-out work of zero coordinate before using.
Ultrasonic action mechanism mainly is made up of ultrasonic action device 7 and two sliding cylinders 8, tool heads is installed so that contact with T type guide rail 4 better in the slip cylinder head.Two sliding cylinders are used in ultrasonic exciting process T type guide rail 4 being fixed, and make the vibration of T type guide rail more steady.
The workflow of whole straightener system as shown in Figure 5, if having reached the linearity of regulation, the amount of deflection δ of T type guide rail requires m, be δ≤m, that just directly starts the feeding stepper motor guide rail is pushed ahead, otherwise will align T type guide rail, at first wait whether need destressing after the amount of deflection δ of the section of aligning judges the guide rail aligning automatically by T type guide rail, when δ during greater than a certain setting deflection value n (n can require artificial the setting according to aligning) just be necessary T type guide rail is being carried out the destressing of exciting a period of time in aligning back once, also to measure the guide rail amount of deflection once more to detect the situation that residual deformation discharges behind each exciting by laser displacement sensor, when T type guide rail amount of deflection has just been compared when no longer including significant change no longer exciting with a preceding exciting, otherwise need to continue exciting, because when amount of deflection not variable declaration T type guide rail discharge fully by the residual deformation that residual stress produces, need not continue exciting goes down, the amount of deflection δ after stable judged that it is δ≤m that linearity that whether T type guide rail reaches aligning requires according to the destressing of T type guide rail again after exciting stopped, just start the feeding stepper motor T type guide rail is pushed ahead if reach, otherwise will circulate said process once more till the linearity that reaches aligning requires.
The time of excited frequency and amplitude and each exciting, the indexs such as linearity requirement of T type guide rail all can artificially be set in the input controller, so just make control more flexible, can change some parameters or the switching controls mode makes efficient higher according to the actual conditions of producing.
Claims (1)
1. the T type guide rail automatic flattening machine of an integrated ultrasonic destressing, comprise the T type guide rail (4) that installation is aligned on the guide supporting roller that is arranged on support (1) both sides, two guide supporting roller inboards one group of fixed support is installed respectively, two fixed supports in every group of fixed support are installed in respectively on the support (1) on T type guide rail (4) both sides, every group of fixed support inboard is provided with a pressure head respectively, each pressure head all is positioned at the both sides of T type guide rail (4) bottom, two rail plates are arranged on the middle support (1) of two groups of fixed supports, U-shaped gag press straightening head (6) top is across on T type guide rail (4) both sides, U-shaped gag press straightening head (6) bottom and two rail plates are slidingly connected, pressure head on the U-shaped gag press straightening head (6) is positioned at the both sides of T type guide rail (4) bottom, the push rod that is installed in the servo hydraulic cylinder (2) on the support (1) is connected with U-shaped gag press straightening head (6), on two fixed supports of the same side and U-shaped gag press straightening head (6), a laser displacement sensor is set all, laser displacement sensor all is positioned at each pressure head top, and three laser displacement sensors are over against the homonymy spigot surface of T type guide rail (4); It is characterized in that: go up at U-shaped gag press straightening head (6) the ultrasonic exciting agency of being made up of two sliding cylinders and ultrasonic action device (7) is installed; Wherein ultrasonic action device (7) comprises the ultrasonic exciting head of being made up of luffing bar (14) and transducer (12), two cylinders and two cylinder locating pieces, two cylinder locating pieces are arranged on the U-shaped gag press straightening head of T type guide rail (4) the same side, two tail cylinders are connected with cylinder locating piece separately respectively, and the push rod of two cylinders all is connected with ultrasonic exciting head; The luffing bar is over against a side spigot surface of T type guide rail (4) and be positioned at the top of pressure head; Two sliding cylinders be installed on the U-shaped gag press straightening head opposite side and be arranged in the middle of the laser displacement sensor both sides, the push rod of two sliding cylinders is all over against the opposite side spigot surface of T type guide rail (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102412559A CN101912902B (en) | 2010-07-30 | 2010-07-30 | Integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102412559A CN101912902B (en) | 2010-07-30 | 2010-07-30 | Integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine |
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| Publication Number | Publication Date |
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| CN101912902A CN101912902A (en) | 2010-12-15 |
| CN101912902B true CN101912902B (en) | 2011-09-14 |
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| CN2010102412559A Expired - Fee Related CN101912902B (en) | 2010-07-30 | 2010-07-30 | Integrated ultrasonic de-stressing automatic T-shaped guide rail straightening machine |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5878294B2 (en) * | 2011-01-11 | 2016-03-08 | 地方独立行政法人東京都立産業技術研究センター | Bending method and bending tool for titanium member |
| CN103135622A (en) * | 2013-01-21 | 2013-06-05 | 北京理工大学 | Local residual stress ultrasonic testing and closed-loop control device |
| CN105562471A (en) * | 2016-03-24 | 2016-05-11 | 苏州塞维拉上吴电梯轨道系统有限公司 | T-type guide rail straightening machine |
| CN108906920A (en) * | 2018-05-25 | 2018-11-30 | 南京理工大学 | A kind of special equipment for T-type elevator guide rail automatic aligning |
| CN109317539B (en) * | 2018-09-28 | 2020-01-31 | 广东凯特精密机械有限公司 | guide rail straightening machine |
| CN111826516B (en) * | 2020-07-23 | 2021-07-30 | 北京理工大学 | Residual stress reduction and homogenization device of metal frame |
| CN114057060A (en) * | 2021-10-28 | 2022-02-18 | 淮北矿业股份有限公司 | Staggered stubble shaper for cage guide |
| CN116765158B (en) * | 2023-08-23 | 2023-11-07 | 张家港市张运机械制造有限公司 | Automatic production line for cold-drawing elevator guide rail |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10113720A (en) * | 1996-10-11 | 1998-05-06 | Nippon Steel Corp | Pretreatment descaling method for ultrasonic flaw detecting of rail and device therefor |
| CN200939472Y (en) * | 2006-08-16 | 2007-08-29 | 郝俊山 | Workpieces corrector |
| CN101712053B (en) * | 2009-12-14 | 2011-08-10 | 浙江大学 | Multi-straightening head-based quick straightening device and method |
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Granted publication date: 20110914 Termination date: 20120730 |