CN106483926B - Self-adaptive following device for lateral positioning of steel rail milling and grinding device - Google Patents
Self-adaptive following device for lateral positioning of steel rail milling and grinding device Download PDFInfo
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- CN106483926B CN106483926B CN201610870842.1A CN201610870842A CN106483926B CN 106483926 B CN106483926 B CN 106483926B CN 201610870842 A CN201610870842 A CN 201610870842A CN 106483926 B CN106483926 B CN 106483926B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/19—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by positioning or contouring control systems, e.g. to control position from one programmed point to another or to control movement along a programmed continuous path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Optics & Photonics (AREA)
- Bearings For Parts Moving Linearly (AREA)
- Machine Tool Units (AREA)
Abstract
The invention relates to the technical field of steel rail milling devices, in particular to a self-adaptive following device for lateral positioning of a steel rail milling device. The self-adaptive following device comprises a base, a lever positioning device, a lever resetting device, a lever adjusting device and an induction device; the lever positioning device comprises a lever and a positioning alloy block, the lever resetting device comprises a resetting spring and a resetting top pin, the lever adjusting device comprises a cylinder, and the sensing device comprises a linear displacement sensor and a sensor fixing seat. The self-adaptive following device solves the problem that the traditional lateral positioning device cannot normally position when the steel rail is seriously fattened and collapsed, can adapt to different steel rail specifications and different steel rail connections, and can realize precise lateral positioning of the milling device during milling and grinding operation of the steel rail under the working conditions of serious line of fattened and collapsed steel rail.
Description
Technical Field
The invention relates to the technical field of steel rail milling devices, in particular to a self-adaptive following device for lateral positioning of a steel rail milling device.
Background
The traditional rail milling and grinding vehicle lateral positioning adopts a fixed positioning method, and when the rail gap is more than 5mm, the joint of two sections of rails is laterally misplaced, the fat edge is more than 2mm, the rail collapse is more than 5mm, the railway small curve and other working conditions are met, the positioning mode can not realize digital feedback control, and the requirements of rail outer contour milling and grinding lateral precise positioning can not be met.
Disclosure of Invention
First, the technical problem to be solved
The invention aims to provide a self-adaptive following device for lateral positioning of a steel rail milling device, which solves the problem that the traditional steel rail milling vehicle cannot adapt to precise lateral positioning under different specifications of steel rails and different working conditions during lateral positioning.
(II) technical scheme
In order to solve the technical problems, the invention provides a self-adaptive following device for lateral positioning of a steel rail milling device, which comprises a base, a lever positioning device, a lever resetting device, a lever adjusting device and a sensing device, wherein the lever positioning device, the lever resetting device, the lever adjusting device and the sensing device are arranged on the base; the lever positioning device comprises a lever and a positioning alloy block, wherein the positioning alloy block is connected with the front end head of the lever, a lever center rotating seat is arranged on the base, and the lever center rotating seat is connected with the rotating center of the lever; the lever reset device comprises a reset spring and a reset ejector pin, wherein the reset spring is connected with one end of the reset ejector pin, and the other end of the reset ejector pin is contacted with the side wall of the rear end of the lever; the lever adjusting device comprises an air cylinder, and the power output end of the air cylinder is connected with the side wall of the front end of the lever; the sensing device comprises a linear displacement sensor and a sensor fixing seat, the linear displacement sensor is installed on the base through the sensor fixing seat, the sensing end of the linear displacement sensor is connected with the side wall of the rear end of the lever, and the horizontal distance from the linear displacement sensor to the rotation center of the lever is equal to the horizontal distance from the positioning alloy block to the rotation center of the lever.
Further, a positioning guide device is further arranged on the base, and comprises a linear bearing fixedly connected to the base and a guide shaft matched with the linear bearing in the linear bearing; the two ends of the guide shaft respectively penetrate through the linear bearing and are arranged outside the linear bearing, and one end of the guide shaft is connected with the rear end of the lever through a first cylindrical pin; two proximity switches are arranged at the other end of the guide shaft, and the two proximity switches are respectively arranged at two sides of the guide shaft.
Specifically, the linear displacement sensor, the proximity switch and the cylinder are respectively connected with a numerical control system.
Specifically, be equipped with the installation shell on the base, be equipped with two proximity switch mount pad on the installation shell, proximity switch passes through proximity switch mount pad is fixed on the installation shell.
Specifically, the mounting shell is also provided with an adjusting nut for adjusting the pressure of the return spring.
Further, the power output end of the air cylinder is connected with the front end of the lever through a second cylindrical pin.
Further, the lever center rotating seat is connected with the rotating center of the lever through a third cylindrical pin.
Further, a limiting block used for limiting the moving position of the rear end of the lever is arranged on the base.
Specifically, the lever center rotating seat is fixedly connected to one side edge of the base, and the lever is arranged on the base through the lever center rotating seat and corresponds to the outer portion of the side edge.
Further, the base is arranged on the upper surface of the steel rail milling device, the center of the base is consistent with the center of the steel rail, and the positioning alloy block is tightly arranged on the inner side surface of the rail.
(III) beneficial effects
The technical scheme of the invention has the following advantages:
the self-adaptive following device for laterally positioning the steel rail milling device can adapt to the precise lateral positioning of the milling device in the process of milling operation of the steel rail under the working conditions of the steel rail fat edge and collapse serious line without steel rail specifications such as 50Kg/m, 60Kg/m, 75Kg/m and the like and different steel rail connections such as slit rails and seamless rails; the problems of influence on milling of the outer contour of the steel rail and accurate positioning of the grinding side direction due to the change of the turning and the track gauge of the steel rail are solved, and the digital feedback control is realized; solves the problem that the traditional lateral positioning device cannot normally position due to severe edge fatness and edge collapse of the steel rail.
Drawings
FIG. 1 is a schematic structural view of an adaptive follower device for lateral positioning of a rail milling device according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view from A-A of FIG. 1 of an adaptive follower device for lateral positioning of a rail milling apparatus in accordance with an embodiment of the present invention;
fig. 3 is a schematic perspective view of an adaptive follower device for lateral positioning of a rail milling device according to an embodiment of the present invention.
In the figure: 1: a steel rail; 2: positioning the alloy block; 3: a lever; 4: a cylinder; 5: a lever center rotating seat; 6: a linear bearing; 7: a limiting block; 8: resetting the ejector pin; 9: a return spring; 10: a sensor holder; 11: a linear displacement sensor; 12: an adjusting nut; 13: a guide shaft; 14: a proximity switch mounting base; 15: a proximity switch; 16: a base; 17: the housing is mounted.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-3, the self-adaptive following device for lateral positioning of a rail milling device provided by the embodiment of the invention comprises a base 16, a lever positioning device, a lever resetting device, a lever adjusting device, a sensing device and a positioning guiding device, wherein the lever positioning device, the lever resetting device, the lever adjusting device, the sensing device and the positioning guiding device are arranged on the base 16.
The lever positioning device comprises a lever 3 and a positioning alloy block 2, the positioning alloy block 2 is fixedly connected to the front end head of the lever 3 through a screw, a lever center rotating seat 5 is arranged on a base 16, and the lever center rotating seat 5 is connected with the rotating center of the lever 3 through a third cylindrical pin. The lever center rotating seat 5 is fixedly connected to one side edge of the base 16, and the lever 3 is arranged outside the base 16 corresponding to the side edge through the lever center rotating seat 5.
The lever resetting device comprises a resetting spring 9 and a resetting top pin 8, wherein the resetting spring 9 is connected with one end of the resetting top pin 8, and the other end of the resetting top pin 8 is contacted with the side wall of the rear end of the lever 3.
The lever adjusting device comprises an air cylinder 4, and the power output end of the air cylinder 4 is connected with the side wall of the front end of the lever 3 through a second cylindrical pin.
The sensing device comprises a linear displacement sensor 11 and a sensor fixing seat 10, the linear displacement sensor 11 is installed on the base 16 through the sensor fixing seat 10, the sensing end of the linear displacement sensor 11 is connected with the side wall of the rear end of the lever 3, and the horizontal distance between the linear displacement sensor 11 and the rotation center of the lever 3 is equal to the horizontal distance between the positioning alloy block 2 and the rotation center of the lever 3.
The positioning and guiding device comprises a linear bearing 6 fixedly connected to the base 16 and a guiding shaft 13 arranged in the linear bearing 6 and matched with the linear bearing 6, and the guiding shaft 13 can horizontally and linearly move in the linear bearing 6. The two ends of the guide shaft 13 respectively penetrate through the linear bearing 6 and are arranged outside the linear bearing 6, one end of the guide shaft 13 is connected with the rear end of the lever 3 through a first cylindrical pin, two proximity switches 15 are arranged at the other end of the guide shaft 13, and the two proximity switches 15 are respectively arranged at two sides of the guide shaft 13. Wherein, a mounting shell 17 is arranged on the base 16, and the linear bearing 6, the guide shaft 13, the return spring 9 and the return pin 8 are all arranged inside the mounting shell 17.
Furthermore, two proximity switch mounting seats 14 are provided on the mounting housing 17, and the proximity switch 15 is fixed to the mounting housing by the proximity switch mounting seats 14.
Furthermore, an adjusting nut 12 for adjusting the pressure of the return spring 9 is provided on the mounting housing 17, and the elastic force of the return spring 9 can be adjusted by rotating the adjusting nut 12, so that the pressure applied to the lever 3 can be adjusted by the return pin 8.
Further, a stopper 7 for restricting the movement position of the rear end of the lever 3 is provided on the base 16.
In addition, the linear displacement sensor 11, the proximity switch 15 and the cylinder 4 are respectively connected with a numerical control system.
When the self-adaptive following device is used, the self-adaptive following device is arranged on the steel rail milling device, wherein the base 16 is arranged on the upper surface of the steel rail 1 of the steel rail milling device, the center of the base 16 is consistent with the center of the steel rail 1, the positioning alloy block 2 is tightly attached to the inner side surface of the rail 16, and when the self-adaptive following device is used for milling operation, the base 16 moves along the upper surface of the steel rail 1 along with the movement of the milling device, and then the positioning alloy block 2 is tightly attached to the inner side surface of the rail 16 to follow the movement.
In the embodiment, the positioning alloy block 2 is driven to move closely to the steel rail 1 by the action of the control lever 3, wherein the positioning alloy block 2 adopts a full-arc contact structure, and the problems that the milling and grinding normal processing are affected due to the fact that the rail gap, the fat edge, the collapse edge and the rail dislocation of the steel rail 1 are solved.
In the embodiment, the positioning alloy block 2 is separated from the surface of the steel rail 1 before and at the end of working by the ejection of the air cylinder 4, so that the damage to the precise lateral positioning self-adaptive following device is avoided when the steel rail 1 has fat edges and collapses.
In the embodiment, the reset pin 8 is pressed by the reset spring 9 to be always propped against the lever 3, so that the positioning alloy block 2 is always attached to the inner side surface of the steel rail 1 in the working process, automatically follows the change of the steel rail 1, and the movement position of the lever 3 is limited by the limiting block 7, so that the lever 3 is always in the middle position after the positioning alloy block 2 is worn in the long-term working process.
In this embodiment, the rear end of the lever is connected with the guide shaft 13 through a cylindrical pin, the guide shaft is installed in a linear bearing, the friction state of the guide shaft is improved by using the linear bearing, the friction force is reduced, the material abrasion is reduced, and the service life and the working performance of parts are improved.
One end of the guide shaft 13 is connected with the lever 3 to position the lever 3, meanwhile, the guide shaft 13 is connected with the rear end of the lever, the guide shaft 13 is arranged in the linear bearing 6, the friction state of the guide shaft 13 is improved by utilizing the linear bearing 6, the friction force is reduced, the material abrasion is reduced, and the service life and the working performance of parts are improved. Through installing two proximity switches 15 at the other end of guiding axle 13 and protect, one proximity switch is bright often in the course of the work, and another is extreme position protection, and these two proximity switches 15 play three-layer guard action with linear displacement sensor 11 combination, and proximity switch 15 links to each other with numerical control system for proximity switch 15's induction signal is correlated with the numerical control program, when maloperation or equipment are in extreme position appears, sends induction signal, and then opens the contact of location alloy piece 2 and rail 1 through the automatic top of numerical control system control cylinder 4 work, plays the safety protection effect.
In this embodiment, since the linear displacement sensor 11 is fixedly mounted on the displacement sensor fixing seat 10, the linear displacement sensor 11 is always propped against the lever 3, and since the distance from the linear displacement sensor 11 to the rotation center of the lever and the distance from the positioning alloy block 2 to the rotation center of the lever are equal, the change amount of the steel rail contacted by the positioning alloy block 2 is ensured to be the same as the sensing data of the linear sensor 11, the linear sensor 11 is connected with the numerical control system, and the transverse movement of the steel rail milling device is precisely controlled through the data feedback of the linear sensor 11.
In summary, the self-adaptive following device for laterally positioning the steel rail milling device provided by the invention adopts the structural form of the cylinder, the reset spring and the lever, and solves the problem that the traditional lateral positioning device cannot normally position due to severe edge fatness and edge collapse of the steel rail.
The self-adaptive following device for lateral positioning of the steel rail milling device solves the problem that the milling of the outer contour of the steel rail and the lateral accurate positioning of grinding are affected due to the change of the turning and the track gauge of the steel rail, and realizes digital feedback control.
The self-adaptive following device for laterally positioning the steel rail milling device solves the problem that the traditional lateral positioning device cannot normally position due to severe edge fertilization and edge collapse of the steel rail.
The self-adaptive following device for laterally positioning the steel rail milling device provided by the invention can adapt to different steel rail specifications and different steel rail connections, and can realize precise lateral positioning of the milling device during steel rail milling operation under the working conditions of steel rail fat edges and collapse serious lines.
In the description of the present invention, it should be noted that, unless otherwise indicated, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience in 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. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A self-adaptation follower device that is used for rail milling device side direction to fix a position, its characterized in that: the device comprises a base, a lever positioning device, a lever resetting device, a lever adjusting device and an induction device, wherein the lever positioning device, the lever resetting device, the lever adjusting device and the induction device are arranged on the base; the lever positioning device comprises a lever and a positioning alloy block, wherein the positioning alloy block is connected with the front end head of the lever, a lever center rotating seat is arranged on the base, and the lever center rotating seat is connected with the rotating center of the lever; the lever reset device comprises a reset spring and a reset ejector pin, wherein the reset spring is connected with one end of the reset ejector pin, and the other end of the reset ejector pin is contacted with the side wall of the rear end of the lever; the lever adjusting device comprises an air cylinder, and the power output end of the air cylinder is connected with the side wall of the front end of the lever; the sensing device comprises a linear displacement sensor and a sensor fixing seat, the linear displacement sensor is arranged on the base through the sensor fixing seat, the sensing end of the linear displacement sensor is connected with the side wall of the rear end of the lever, and the horizontal distance between the linear displacement sensor and the rotation center of the lever is equal to the horizontal distance between the positioning alloy block and the rotation center of the lever;
the base is also provided with a positioning guide device, and the positioning guide device comprises a linear bearing fixedly connected to the base and a guide shaft matched with the linear bearing in the linear bearing; the two ends of the guide shaft respectively penetrate through the linear bearing and are arranged outside the linear bearing, and one end of the guide shaft is connected with the rear end of the lever through a first cylindrical pin; two proximity switches are arranged at the other end of the guide shaft, and the two proximity switches are respectively arranged at two sides of the guide shaft;
the base is provided with a limiting block for limiting the moving position of the rear end of the lever.
2. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in claim 1 wherein: the linear displacement sensor, the proximity switch and the air cylinder are respectively connected with the numerical control system.
3. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in claim 1 wherein: the base is provided with a mounting shell, the mounting shell is provided with two proximity switch mounting seats, and the proximity switch is fixed on the mounting shell through the proximity switch mounting seats.
4. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in claim 3 wherein: and an adjusting nut for adjusting the pressure of the return spring is further arranged on the mounting shell.
5. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in claim 1 wherein: and the power output end of the air cylinder is connected with the front end of the lever through a second cylindrical pin.
6. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in claim 1 wherein: the lever center rotating seat is connected with the rotating center of the lever through a third cylindrical pin.
7. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in claim 1 wherein: the lever center rotating seat is fixedly connected to one side edge of the base, and the lever is arranged on the base through the lever center rotating seat and corresponds to the outside of the side edge.
8. An adaptive follower device for lateral positioning of a rail milling apparatus as defined in any one of claims 1-7 wherein: the base is arranged on the upper surface of a steel rail of the steel rail milling device, the center of the base is consistent with the center of the steel rail, and the positioning alloy block is tightly attached to the inner side surface of the steel rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870842.1A CN106483926B (en) | 2016-09-30 | 2016-09-30 | Self-adaptive following device for lateral positioning of steel rail milling and grinding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870842.1A CN106483926B (en) | 2016-09-30 | 2016-09-30 | Self-adaptive following device for lateral positioning of steel rail milling and grinding device |
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| Publication Number | Publication Date |
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| CN106483926A CN106483926A (en) | 2017-03-08 |
| CN106483926B true CN106483926B (en) | 2023-07-21 |
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| CN201610870842.1A Active CN106483926B (en) | 2016-09-30 | 2016-09-30 | Self-adaptive following device for lateral positioning of steel rail milling and grinding device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110130165B (en) * | 2018-02-09 | 2024-03-15 | 中国铁建高新装备股份有限公司 | Positioning device suitable for steel rail online milling operation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3868631D1 (en) * | 1988-05-30 | 1992-04-02 | Scheuchzer Fils Auguste | RAIL GRINDING MACHINE. |
| CN102848316B (en) * | 2012-08-16 | 2014-07-09 | 湖南海捷精密工业有限公司 | Longitudinal feed self-adaptation device for steel rail milling and grinding machine |
| CN102837236B (en) * | 2012-09-13 | 2015-02-04 | 湖南海捷精密工业有限公司 | Movable numerical control grinding apparatus for grinding steel rail and control method thereof |
| JP6035229B2 (en) * | 2013-11-21 | 2016-11-30 | 公益財団法人鉄道総合技術研究所 | Rail grinding cart and rail grinding method |
| WO2016101322A1 (en) * | 2014-12-26 | 2016-06-30 | 中车北京二七机车有限公司 | Steel rail polishing device and steel rail milling and grinding vehicle |
| CN104923840B (en) * | 2015-06-30 | 2017-09-22 | 株洲时代电子技术有限公司 | A kind of rail milling operation control method |
| CN206178445U (en) * | 2016-09-30 | 2017-05-17 | 湖南大学 | A device is followed to self -adaptation that is used for rail to mill grinding device lateral register |
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2016
- 2016-09-30 CN CN201610870842.1A patent/CN106483926B/en active Active
Non-Patent Citations (1)
| Title |
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| Shape adaptive grinding of CVD silicon carbide;Anthony Beaucamp;《CIRP Annals - Manufacturing Technology》;317–320 * |
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