CN102423830A - Centering mechanism for inside action edges of steel rails for mobile steel rail flash welding machine - Google Patents
Centering mechanism for inside action edges of steel rails for mobile steel rail flash welding machine Download PDFInfo
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- CN102423830A CN102423830A CN2011103192635A CN201110319263A CN102423830A CN 102423830 A CN102423830 A CN 102423830A CN 2011103192635 A CN2011103192635 A CN 2011103192635A CN 201110319263 A CN201110319263 A CN 201110319263A CN 102423830 A CN102423830 A CN 102423830A
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- tapered wedges
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Abstract
The invention provides a centering mechanism for the inside action edges of steel rails for a mobile steel rail flash welding machine. The centering mechanism is characterized in that the bottom parts of an electrode mounting groove and a clamping block mounting groove at the front side of one end of the welding machine incline in a splayed shape; tapered wedges are arranged in the mounting grooves, lead screws are arranged between the tapered wedges and electrode/clamping block mounting seats, the lead screws and the tapered wedges form screw pairs, and the screw pairs on two ends of the lead screw rotate along opposite directions; and an electrode and a clamping block are respectively and transversely equipped with a limit screw above and below the lead screws, disc springs are sheathed on the limit screws, and the tail ends of the limit screws are fixed on the electrode/clamping block mounting seats through the longitudinal strip grooves of the tapered wedges. The centering mechanism provided by the invention is convenient in operation; and by adopting the mechanism, the welded steel rails can obtain high flatness, and good welding quality and high welding efficiency can be realized.
Description
Technical field
The present invention relates to the inboard action edge centering body of rail of mobile steel rail flash welder.
Background technology
The Line for Passenger Transportation of high-speed railway and heavily loaded railway line for freight traffic have all proposed requirements at the higher level to the ride comfort of steel rail weld joint; Promptly require the action edge (tread face and inboard working edge) of rail to have linearity preferably; This just requires steel rail flash welding machine to have good action edge centering function, transports the new demand to rail welding with satisfied high speed, heavy haul railway.The centering mode of the inboard action edge of the rail of existing welding machine is a web of the rail centering, and promptly the electrode at welding machine two ends and clamp clamp the welding point of two one steel rails and centering.The centering function that does not have the inboard action edge of rail on this centering mode stricti jurise.It relies on the accuracy of manufacture of rail to guarantee fully, like import welding machines such as K900, K920, K922.If the web of the rail size of rail or rail head size have bigger error, will cause institute's welding steel rail misalignment serious, linearity is overproof; So often need to fill up scale copper between artificial electrode and/or the clamp at the web of the rail and welding machine, perhaps between the back side of welding machine and electrode/clamp mount pad, fill up scale copper, make rail that suitable lateral displacement realization rail inboard action edge centering taken place.The deficiency of this mode is: (1) operator's labour intensity is big, and accuracy of alignment receives the influence of workman's experience bigger.(2) after filling up copper sheet (must use copper sheet) on the electrode contact surface of the web of the rail and welding machine, can increase contact resistance; Make that the welding quality of soldering tip is very unstable; Even possibly readjust welding condition; Important welding condition is demarcated again, the experiment of dropping hammer of reforming, institute's welding steel rail is inspected by ready samples again.(3) the pad scale copper (available copper sheet, latten(-tin) or stainless steel substrates) at the back side of electrode and clamp; Need electrode and clamp be pulled down from electrode/clamp mount pad; According to estimation to the misalignment situation; After embedding required shim liner, again electrode and clamp are installed on electrode/clamp mount pad, and clamp rail again; Once-through operation often can not realize centering, need repeatedly repeat to increase and decrease, adjust the shim liner that fill up at its back side, complex operation.And because the pad distortion can cause the mechanical wear of welding machine own to increase with frequent dismounting electrode, thereby directly influence the welding machine mechanical precision.(4) because the adjustment factor is more, the welding aided process is long, ten or twenty minute at least, and ten days first quarter moons are tested even about one month if reform to drop hammer at most, make that field Welding efficient is low.
Summary of the invention
The object of the invention just provides a kind of inboard action edge centering body of rail of mobile steel rail flash welder, and this mechanism is easy to operate, can make the glacing flatness of postwelding rail high, and welding quality is good, and welding efficiency is high.
The present invention solves its technical problem; The technical scheme that is adopted is: the inboard action edge centering body of a kind of rail of mobile steel rail flash welder; The electrode, clamp, electrode and the clamp that comprise welding machine one end front side all are connected, it is characterized in that with electrode/clamp mount pad through mounting groove; The bottom land of the mounting groove of described electrode and the mounting groove of clamp tilts, and the two incline direction of the incline direction of the two is " eight " font; Be provided with the tapered wedges adaptive in the mounting groove, be provided with leading screw longitudinally between tapered wedges and electrode/clamp mount pad with it, and leading screw and tapered wedges formation screw pair, the screw pair rotation direction at leading screw two ends is opposite; Electrode and clamp all laterally are provided with at the position of leading screw above and below and are with the dish spring on stop screw, the stop screw, and the end of this stop screw passes vertical bar-shaped trough of tapered wedges and is fixed on electrode/clamp mount pad.
The course of work of the present invention and principle are:
Under the debugging mode, the welding machine two ends try to clamp two joint rail to be welded, the misalignment situation of the action edge of preliminary judgement two rails respectively; Unclamp the welding machine jaw then; To have the electrode and the clamp of the welding machine one end front side of centering body to leave rail, reverse rotation takes place between screw mandrel and front side (outside of the rail) tapered wedges of electrode and the tapered wedges of clamp in rotary screw rod; Under the effect of dish spring, drive two tapered wedges and in mounting groove, move in opposite directions simultaneously or opposite moving simultaneously.When moving in opposite directions, under the effect of dish spring and leading screw, two tapered wedges move to the darker direction of mounting groove, also promptly along moving towards electrode/clamp mount pad (away from rail) direction away from rail; Welding machine clamps subsequently, and location of rail side direction forward takes place laterally to move; On the contrary, when two tapered wedges moved on the contrary, the resistance that two tapered wedges overcome the dish spring moved to the more shallow direction of mounting groove, squeeze push away electrode and clamp court dorsad the direction of electrode/clamp mount pad (near rail) move; In the time of can realizing that then welding machine clamps, location of rail laterally moves towards rear direction; The displacement of laterally moving equals the inboard action edge centering that the unfitness of butt joint of two joints rail to be welded promptly realizes rail.
Compared with prior art, the invention has the beneficial effects as follows:
One,, regulates the lateral attitude of rail and realize rail action edge centering through the effect of screw mandrel, tapered wedges mechanism.During the centering operation, only need rotary screw rod and unclamp, clamp the welding machine jaw, need not to dismantle any parts, simple, convenient, reduced the welding aided process greatly, improve welding efficiency and obviously improve.
Two, pass through moving of tapered wedges, realized that the stepless continuous of rail lateral displacement amount is regulated, regulate than the level that has of shim liner, degree of regulation is higher, the glacing flatness height of postwelding rail.
Three, do not dismantle any parts during centering, avoided the wearing and tearing of dismounting butt welding machine, further guaranteed the stability and the welding quality of welding machine.
The position of above-mentioned leading screw between electrode and clamp is fixed with conical gear, the active conical gear engagement on this conical gear and the motor shaft, and motor is fixed on electrode/clamp mount pad.
Like this, drive leading screw by motor through gear mechanism and rotate, further reduced operator's labour intensity, improved welding efficiency; Motor links to each other with automatic control equipment again, then can make centering operate automation more.
Below in conjunction with accompanying drawing and embodiment the present invention is done further detailed description.
Description of drawings
Fig. 1 is that the centering body of the embodiment of the invention is used in the plan structure sketch map on the mobile steel rail flash welder.15 is rail to be welded among Fig. 1.
The specific embodiment
Embodiment
Fig. 1,2 illustrates; A kind of specific embodiment of the present invention is: the inboard action edge centering body of a kind of rail of mobile steel rail flash welder; The electrode 14, clamp 8, electrode 14 and the clamp 8 that comprise welding machine one end front side all are connected, it is characterized in that with electrode/clamp mount pad 3 through mounting groove 28; The bottom land of the mounting groove 28 of described electrode 14 and the mounting groove 28 of clamp 8 tilts, and the incline direction of the two is " eight " font; Be provided with the tapered wedges adaptive 13 in the mounting groove 28, be provided with leading screw 5 longitudinally between tapered wedges 13 and electrode/clamp mount pad 3 with it, and leading screw 5 and tapered wedges 13 formation screw pairs, the screw pair rotation direction at leading screw 5 two ends is opposite; Electrode 14 all laterally is provided with at the position of leading screw 5 above and belows with clamp 8 and is with dish spring 9a on stop screw 9, the stop screw 9, and the end of this stop screw 9 passes vertical bar-shaped trough of tapered wedges 13 and is fixed on electrode/clamp mount pad 3.
The position of this routine leading screw 5 between electrode 14 and clamp 8 is fixed with conical gear 29, active conical gear 2 engagements on 1 in this conical gear 29 and the motor, and motor 1 is fixed on electrode/clamp mount pad 3.
Claims (2)
1. the inboard action edge centering body of the rail of a mobile steel rail flash welder; The electrode (14), clamp (8), electrode (14) and the clamp (8) that comprise welding machine one end front side all are connected, it is characterized in that with electrode/clamp mount pad (3) through mounting groove (28); The bottom land of the mounting groove (28) of described electrode (14) and the mounting groove (28) of clamp (8) tilts, and the incline direction of the two is " eight " font; Be provided with the tapered wedges adaptive (13) in the mounting groove (28), be provided with leading screw (5) longitudinally between tapered wedges (13) and electrode/clamp mount pad (3) with it, and leading screw (5) and tapered wedges (13) formation screw pair, the screw pair rotation direction at leading screw (5) two ends is opposite; Electrode (14) and clamp (8) all laterally are provided with on stop screw (9), the stop screw (9) at the position of leading screw (5) above and below and are with dish spring (9a), and the end of this stop screw (9) passes vertical bar-shaped trough of tapered wedges (13) and is fixed on electrode/clamp mount pad (3).
2. the inboard action edge centering body of the rail of a kind of mobile steel rail flash welder according to claim 1; It is characterized in that: the position of described leading screw (5) between electrode (14) and clamp (8) is fixed with conical gear (29); Active conical gear (2) engagement on this conical gear (29) and motor (1) axle, motor (1) is fixed on electrode/clamp mount pad (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110319263 CN102423830B (en) | 2011-10-20 | 2011-10-20 | Centering mechanism for inside action edges of steel rails for mobile steel rail flash welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110319263 CN102423830B (en) | 2011-10-20 | 2011-10-20 | Centering mechanism for inside action edges of steel rails for mobile steel rail flash welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102423830A true CN102423830A (en) | 2012-04-25 |
| CN102423830B CN102423830B (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110319263 Active CN102423830B (en) | 2011-10-20 | 2011-10-20 | Centering mechanism for inside action edges of steel rails for mobile steel rail flash welding machine |
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| CN (1) | CN102423830B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552935A (en) * | 2017-07-24 | 2018-01-09 | 中国铁道科学研究院金属及化学研究所 | A kind of fixed steel rail Flash Butt Welding automatic centering and measurement apparatus |
| CN107675568A (en) * | 2017-11-10 | 2018-02-09 | 西南交通大学 | The automatic rail top of steel rail profiling sanding apparatus of intelligence |
| CN113874145A (en) * | 2019-05-29 | 2021-12-31 | 巨皇精密工具公司 | Boring head with a mechanism for gripping a displaceable tool carrier |
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2011
- 2011-10-20 CN CN 201110319263 patent/CN102423830B/en active Active
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107552935A (en) * | 2017-07-24 | 2018-01-09 | 中国铁道科学研究院金属及化学研究所 | A kind of fixed steel rail Flash Butt Welding automatic centering and measurement apparatus |
| CN107675568A (en) * | 2017-11-10 | 2018-02-09 | 西南交通大学 | The automatic rail top of steel rail profiling sanding apparatus of intelligence |
| CN107675568B (en) * | 2017-11-10 | 2023-09-12 | 成都西南交通大学产业(集团)有限公司 | Intelligent automatic profiling and polishing device for rail tops of steel rails |
| CN113874145A (en) * | 2019-05-29 | 2021-12-31 | 巨皇精密工具公司 | Boring head with a mechanism for gripping a displaceable tool carrier |
| US11911831B2 (en) | 2019-05-29 | 2024-02-27 | Big Kaiser Prazisionswerkzeuge Ag | Boring head with a mechanism for clamping a displaceable tool carrier |
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| Publication number | Publication date |
|---|---|
| CN102423830B (en) | 2013-05-08 |
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