CN102615320B - Finish-milling numerical control machine tool for steel rail welding seam - Google Patents
Finish-milling numerical control machine tool for steel rail welding seam Download PDFInfo
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- CN102615320B CN102615320B CN201210076010.4A CN201210076010A CN102615320B CN 102615320 B CN102615320 B CN 102615320B CN 201210076010 A CN201210076010 A CN 201210076010A CN 102615320 B CN102615320 B CN 102615320B
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Abstract
The invention discloses a finish-milling numerical control machine tool for a steel rail welding seam. The finish-milling numerical control machine tool comprises a worktable arranged on the machine tool, wherein a positioning fixture, a rotating mechanism and an electrical control system are arranged on the worktable; a moving device which can do a transverse and vertical motion is arranged on the rotating mechanism; a tool and a first detection device for detecting a start point and an end point of the steel rail are respectively arranged on the moving device; control circuits of the positioning fixture, the rotating mechanism and the first detection device are respectively connected with the electrical control system; the tool is a milling cutter; a second detection device for detecting the position relationship between the outlines of a start point and an end point of processing and the tool and tool rotating center; and the second detection device is connected with the electrical control system. According to the finish-milling numerical control machine tool disclosed by the invention, a grinding wheel is changed into the milling cutter, so that the problems of the cutter back-off and burning-down of workpieces are solved; and the second detection device can be used for conveniently detecting the position relationship between the outlines of the start point and the end point of processing and the tool and tool rotating center, thereby controlling the milling cutter to accurately feed and achieving the aim of finish milling. The finish-milling numerical control machine tool is suitable for processing steel rails.
Description
Technical field
The present invention relates to steel rail welding line and process, particularly relate to a kind of steel rail welding line finish-milling Digit Control Machine Tool.
Background technology
At present, though because formed buildup after Long rail welding is through cutting somebody's hair processing, but still the endless belt root nodule of residual 2mm * 20mm, so most domestic producer is general, adopt following two kinds of modes to repair:
1, manual mode, not only speed is slow, and labor strength is large, and environmental pollution is large, and quality can not be guaranteed, and burnishing part polishing scratch is unordered in a jumble, and sense organ is poor, and the outlet of long rail is brought to certain influence.Usually occur not being ground to of this mill, the place mill that should not grind loses.
2, adopt numerical coutrol fine grinding machine fine grinding, this mode is specially, and first, the ride comfort at steel rail welding line place is carried out to data acquisition, thereby determines machining starting point and the terminal (being grinding length) of rail; Then, by abrasive grinding wheel, contact rail and produce spark, determine the outline of described machining starting point and terminal and the position relationship of abrasive grinding wheel pivot; Finally, to grinding length, adopt the little straight line profiling of multistage approximating method to refine.Because the method is to adopt the little straight line profiling of segmentation approximating method fine grinding, so the bossing of weld seam may appear at the middle part of the little straight line of segmentation, like this, when sharpening is ground to this projection, the phenomenon that sharpening there will be cutter relieving phenomenon or directly occurs burning workpiece, has had a strong impact on rail quality.
Summary of the invention
The object of the invention is, in order to overcome the deficiency of above-mentioned background technology, provides a kind of simple in structure, there will not be cutter relieving and burns the steel rail welding line finish-milling Digit Control Machine Tool of workpiece phenomenon.
In order to realize above object, a kind of steel rail welding line finish-milling Digit Control Machine Tool provided by the invention, comprise the workbench being arranged on lathe, positioning fixture is installed on workbench, slew gear and electric-control system, described slew gear is provided with the mobile device that can do to move both vertically and horizontally, on mobile device, be separately installed with cutter and for detection of the first checkout gear of rail machining starting point and terminal, described positioning fixture, the control circuit of slew gear and the first checkout gear is all connected with described electric-control system, described cutter is milling cutter, described slew gear is provided with the second detection device for detection of the position relationship of machining starting point and terminal outline and cutter and cutter pivot, this second detection device is connected with described electric-control system.By changing abrasive grinding wheel into milling cutter, the problem that has solved cutter relieving and burnt workpiece; Simultaneously, owing to can not producing spark with milling cutter Problems in Machining of Steel Rail, so the second detection device adding can easily detect the position relationship between described machining starting point and terminal outline and cutter and cutter pivot three (processing stand outline, cutter and cutter pivot), thereby control described milling cutter and descend exactly cutter, reach the object of finish-milling.
In such scheme, described second detection device comprise the action of the described cutter of simulation measurement piece, for detection of the displacement transducer of described measurement block movement path with can be laterally and the drive unit of vertical movement, this drive unit is arranged on described slew gear, described measurement piece is movably arranged on described drive unit by spring and guide post, and described measurement piece is positioned at the lower end of guide post.By the measurement piece adding, simulate described cutter and move, and detect with displacement transducer the course of action of measuring piece, thereby reach the object of the position relationship that detects described machining starting point and terminal outline and cutter and cutter pivot.Certainly, also can adopt the checkout gear of other structures.
In such scheme, described displacement transducer is laser sensor, and this laser sensor is oppositely arranged on the upper end of described guide post, and the position that described drive unit is corresponding is provided with reflector, and the reflecting surface of this reflector is aimed at described laser transmitter projects end.Certainly, also can adopt other displacement transducers.
In such scheme, the size of described measurement piece and the consistent size of described cutter.
The operation principle of described second detection device is: measure piece in the process of simulation cutter action (treating that milling Rail Surface moves), described spring makes to measure piece and treats milling Rail Surface close contact, measuring piece can float along with treating the surface configuration of weld seam on milling rail, and described guide post also can stretch along with measuring floating of piece; Meanwhile, described guide post drives described laser sensor to move, and make the transmitting terminal of laser sensor to the distance change of described reflector, thereby the unsteady variation of piece is measured in record, and feeds back to described electric-control system; Electric-control system in conjunction with the measurement piece change in location of slew gear and drive unit feedback, is determined described machining starting point and the profile of terminal and the position relationship of cutter and cutter pivot again after Data Management Analysis; Finally according to the data obtained, produce the program of cutting tool path.
The present invention is compared with the prior art, and fully shows that its superiority is: by changing abrasive grinding wheel into milling cutter, and the problem that has solved cutter relieving and burnt workpiece; Simultaneously, owing to can not producing spark with milling cutter Problems in Machining of Steel Rail, so the second detection device adding can easily detect the position relationship of described machining starting point and terminal outline and cutter and cutter pivot, descends exactly cutter thereby control described milling cutter, reaches the object of finish-milling.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1;
Fig. 3 is that the present invention processes the use status architecture schematic diagram when milling rail;
Fig. 4 is the structural representation of second detection device in the present invention;
Fig. 5 is the side-looking structural representation of Fig. 4.
In figure: lathe 1, workbench 2, positioning fixture 3, slew gear 4, electric-control system 5, mobile device 6, cutter 7, the first checkout gears 8, second detection device 9, measures piece 10, displacement transducer 11, drive unit 12, spring 13, guide post 14, reflector 15, treats milling rail 16.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail, but this embodiment should not be construed as limitation of the present invention.
As shown in Figure 1: the present embodiment provides a kind of steel rail welding line finish-milling Digit Control Machine Tool, comprise the workbench 2 being arranged on lathe 1, positioning fixture 3 is installed on workbench 2, slew gear 4 and electric-control system 5, described slew gear 4 is provided with the mobile device 6 that can do to move both vertically and horizontally, on mobile device 6, be separately installed with cutter 7 and for detection of the first checkout gear 8 of rail machining starting point and terminal, described positioning fixture 3, the control circuit of slew gear 4 and the first checkout gear 8 is all connected with described electric-control system 5, described cutter 7 is milling cutter, described slew gear 4 is provided with the second detection device 9 for detection of the position relationship of machining starting point and terminal outline and cutter 7 and cutter pivot, this second detection device 9 is connected with described electric-control system 5.By changing abrasive grinding wheel into milling cutter, the problem that has solved cutter relieving and burnt workpiece; Simultaneously, owing to can not producing spark with milling cutter Problems in Machining of Steel Rail, so the second detection device 9 adding can easily detect the position relationship of described detection machining starting point and terminal outline and cutter 7 and cutter pivot, thereby control described milling cutter and descend exactly cutter, reach the object (referring to Fig. 2 and Fig. 3) of finish-milling.
As shown in Figure 4, described second detection device 9 comprise 7 actions of the described cutter of simulation measurement piece 10, for detection of the displacement transducer 11 of described measurement piece 10 movement locus with can be laterally and the drive unit 12 of vertical movement, this drive unit 12 is arranged on described slew gear 4, described measurement piece 10 is movably arranged on described drive unit 12 by spring 13 and guide post 14, and described measurement piece 10 is positioned at the lower end of guide post 14.By described cutter 7 actions of measurement piece 10 simulation that add, and with displacement transducer 11, detect the course of action of measuring piece 10, thereby reach the object of the position relationship that detects described detection machining starting point and terminal outline and cutter 7 and cutter pivot.Certainly, also can adopt the checkout gear of other structures.Described displacement transducer 11 is laser sensor, and this laser sensor is oppositely arranged on the upper end of described guide post 14, and the position of described drive unit 12 correspondences is provided with reflector 15, and the reflecting surface of this reflector 15 is aimed at described laser transmitter projects end.Certainly, also can adopt other displacement transducers.The consistent size of the size of described measurement piece 10 and described cutter 7 (referring to Fig. 5).
The operation principle of described second detection device 9 is: measure piece 10 in the process of simulation cutter 7 actions (treating the 16 surface rotations of milling rail), described spring 13 makes to measure piece 10 and treats the surperficial close contact of milling rail 16, measuring piece 10 can float along with treating the surface configuration of weld seam on milling rail 16, and described guide post 14 also can stretch along with measuring floating of piece 10; Meanwhile, described guide post 14 drives described laser sensor to move, and make the transmitting terminal of laser sensor to the distance change of described reflector 15, thereby the unsteady variation of piece 10 is measured in record, and feeds back to described electric-control system 5; Electric-control system 5 in conjunction with measurement piece 10 change in location of slew gear 4 and drive unit 12 feedbacks, is determined described machining starting point and the profile of terminal and the position relationship of cutter 7 and cutter pivot again after Data Management Analysis; Finally according to the data obtained, produce the program of cutter 7 movement locus.
The course of work of the present invention is as follows:
First, the milling rail 16 for the treatment of after welding is transported on workbench 2 of the present invention by outer power; Then, using cutter 7 as " arrow lance " reference, workbench 2 is moved to " target " (i.e. root nodule place after milling rail 16); Then,, after " arrow lance " aimed at " target ", start positioning fixture 3 and will treat that milling rail 16 clamps; Follow again, control slew gear 4 and mobile device 6, utilize the first checkout gear 8 to measure the glacing flatness for the treatment of milling rail 16, and by drawing machining starting point and the final position for the treatment of milling rail 16 after Data Management Analysis; Again then, control slew gear 4 and drive unit 12, make to measure piece 10 simulation cutter 7 work, and utilize second detection device 9 to measure the profile of described machining starting point and terminal and the position relationship of cutter 7 and cutter pivot; Finally, measured data are drawn to the movement locus (being made into program) of cutter 7 after by Data Management Analysis, and control slew gear 4 and drive units 12 by electric-control system 5, make cutter 7 divide multitool to treat milling rail 16 to process (referring to Fig. 3) by being turned back to different positions by the program writing; After milling completes, again the rail milling is carried out to glacing flatness detection as stated above, and carry out the qualified preservation of sentencing fixed sum data and transmission.
Whole process is about 5 minutes above.The iron filings that produce in milling process are collected by connecing bits device.And in milling process, lubricating system of the present invention is lubricated each motion parts in good time, so that processing effect is better.
While welding in theory, misalignment objectively always exists, and no matter the misalignment of rail is as no, cutter relieving when such processing method not only can overcome grinding or burn workpiece, and also linearity and ride comfort after processing also can meet the instructions for use of rail.
The present invention, by changing abrasive grinding wheel into milling cutter, has solved cutter relieving and the problem of burning workpiece; Simultaneously, owing to can not producing spark with milling cutter Problems in Machining of Steel Rail, so the second detection device 9 adding can easily detect the position relationship of described detection machining starting point and terminal outline and cutter 7 pivots, descends exactly cutter thereby control described milling cutter, reaches the object of finish-milling.
Claims (3)
1. a steel rail welding line finish-milling Digit Control Machine Tool, comprise the workbench being arranged on lathe, positioning fixture is installed on workbench, slew gear and electric-control system, described slew gear is provided with the mobile device that can do to move both vertically and horizontally, on mobile device, be separately installed with cutter and for detection of the first checkout gear of rail machining starting point and terminal, described positioning fixture, the control circuit of slew gear and the first checkout gear is all connected with described electric-control system, it is characterized in that, described cutter is milling cutter, described slew gear is provided with the second detection device for detection of the position relationship of machining starting point and terminal outline and cutter and cutter pivot, this second detection device is connected with described electric-control system, described second detection device comprise the action of the described cutter of simulation measurement piece, for detection of the displacement transducer of described measurement block movement path with can be laterally and the drive unit of vertical movement, this drive unit is arranged on described slew gear, described measurement piece is movably arranged on described drive unit by spring and guide post, and described measurement piece is positioned at the lower end of guide post.
2. steel rail welding line finish-milling Digit Control Machine Tool as claimed in claim 1, it is characterized in that, described displacement transducer is laser sensor, this laser sensor is oppositely arranged on the upper end of described guide post, the position that described drive unit is corresponding is provided with reflector, and the reflecting surface of this reflector is aimed at described laser transmitter projects end.
3. steel rail welding line finish-milling Digit Control Machine Tool as claimed in claim 1 or 2, is characterized in that, the size of described measurement piece and the consistent size of described cutter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210076010.4A CN102615320B (en) | 2012-03-21 | 2012-03-21 | Finish-milling numerical control machine tool for steel rail welding seam |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210076010.4A CN102615320B (en) | 2012-03-21 | 2012-03-21 | Finish-milling numerical control machine tool for steel rail welding seam |
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| CN102615320A CN102615320A (en) | 2012-08-01 |
| CN102615320B true CN102615320B (en) | 2014-04-16 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102896499A (en) * | 2012-09-22 | 2013-01-30 | 无锡华联精工机械有限公司 | Adjustable pedestal component of circular seam back chipping edge milling machine |
| CN104308235B (en) * | 2014-09-26 | 2016-09-28 | 武汉利德测控技术股份有限公司 | Steel rail welding line tunneling boring milling device |
| CN104875077A (en) * | 2015-06-11 | 2015-09-02 | 安徽康成工业产品设计有限公司 | Automatic measurement device for board edge milling machine |
| CN106041182B (en) * | 2016-06-24 | 2018-01-09 | 深圳市高能精密机械有限公司 | Steel rail welding line numerical finish-milling equipment and finish-milling method |
| CN106871839B (en) * | 2017-03-08 | 2023-03-24 | 上海瑞纽机械股份有限公司 | Measuring device and measuring method for steel rail weld forming mill |
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| US3978746A (en) * | 1974-05-30 | 1976-09-07 | Kuchuk Yatsenko Sergei Ivanovi | Device for removing flash after resistance butt welding of rails |
| EP0119098A2 (en) * | 1983-03-14 | 1984-09-19 | A.I. Welders Limited | A method and apparatus for aligning two work pieces |
| CN87107259A (en) * | 1987-12-04 | 1988-06-15 | 西安市机械研究所 | The milling device of welding bead of railway rail bar |
| CN102049557A (en) * | 2009-11-04 | 2011-05-11 | 西北机器有限公司 | Edge milling machine for large-diameter longitudinal submerged arc welded pipe |
| CN201855987U (en) * | 2010-08-06 | 2011-06-08 | 武汉利德测控技术股份有限公司 | Numerical-controlled milling machine for removing nodes on welded long rail |
| CN202116957U (en) * | 2011-05-10 | 2012-01-18 | 曲传胜 | Railway track trimming equipment |
| CN202506884U (en) * | 2012-03-21 | 2012-10-31 | 武汉利德测控技术股份有限公司 | Rail welding seam finish-milling numerical control machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5431881B2 (en) * | 2009-11-12 | 2014-03-05 | 三菱電機株式会社 | Weld bead measuring method, weld bead cutting method and weld bead cutting device for pipe |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3978746A (en) * | 1974-05-30 | 1976-09-07 | Kuchuk Yatsenko Sergei Ivanovi | Device for removing flash after resistance butt welding of rails |
| EP0119098A2 (en) * | 1983-03-14 | 1984-09-19 | A.I. Welders Limited | A method and apparatus for aligning two work pieces |
| CN87107259A (en) * | 1987-12-04 | 1988-06-15 | 西安市机械研究所 | The milling device of welding bead of railway rail bar |
| CN102049557A (en) * | 2009-11-04 | 2011-05-11 | 西北机器有限公司 | Edge milling machine for large-diameter longitudinal submerged arc welded pipe |
| CN201855987U (en) * | 2010-08-06 | 2011-06-08 | 武汉利德测控技术股份有限公司 | Numerical-controlled milling machine for removing nodes on welded long rail |
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| CN102615320A (en) | 2012-08-01 |
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Denomination of invention: Rail welding seam finish-milling numerical control machine Effective date of registration: 20140910 Granted publication date: 20140416 Pledgee: Bank of Communications Ltd Wuhan fruit Lake Branch Pledgor: Wuhan LEADDO Measuring & Control Co., Ltd. Registration number: 2014990000746 |
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Date of cancellation: 20151105 Granted publication date: 20140416 Pledgee: Bank of Communications Ltd Wuhan fruit Lake Branch Pledgor: Wuhan LEADDO Measuring & Control Co., Ltd. Registration number: 2014990000746 |
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