CN203541247U - Straightness regulating device of long reference linear rail - Google Patents
Straightness regulating device of long reference linear rail Download PDFInfo
- Publication number
- CN203541247U CN203541247U CN201320568517.1U CN201320568517U CN203541247U CN 203541247 U CN203541247 U CN 203541247U CN 201320568517 U CN201320568517 U CN 201320568517U CN 203541247 U CN203541247 U CN 203541247U
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- CN
- China
- Prior art keywords
- linear rail
- scale
- line rail
- datum line
- straightness
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Abstract
The utility model relates to a straightness regulating device of a long reference linear rail. The straightness regulating device comprises a scale fixing device, a reference linear rail regulating device and a laser displacement sensor. The straightness regulating device is characterized in that an L-shaped left seat and an L-shaped right seat are arranged on two sides of a holder of the scale fixing device, scale shafts are respectively mounted on the L-shaped left seat and the L-shaped right seat, and a tightening unit is fixed at the tail end of a scale; the head of the scale is sleeved in a small sheave on the L-shaped left seat of the holder while the tail of the scale is wound inside a ratchet and pawl combination of the tightening unit; linear rail fixing blocks are connected to one side of the holder of the reference linear rail regulating device, linear rail regulating blocks are fixed on a long reference linear rail which is combined by a left reference linear rail and a right reference linear rail in a abutting joint manner and are mounted at the interval of 100-300 mm, the linear rail fixing blocks are mounted on the holder by corresponding to the linear rail regulating blocks, each of the linear rail fixing blocks and each of the linear rail regulating blocks are connected by a screw and with a clearance about 2mm reserved, and the clearance can be regulated through the screw; the laser displacement sensor is slidably connected to the holder. The straightness regulating device has the advantages of low cost, high precision and reliability and convenience in operation, is a mechanical device applicable to straightness regulation of long reference linear rails (with the length ranging from 8m to 13m) on complex workshop field conditions, and provides effective reference to straightness detection and straightening of large-dimension long thin-wall workpieces.
Description
Technical field
The utility model relates to a kind of straightness adjusting device of big-length datum line rail, the straightness adjusting device that particularly relates to the datum line rail of a kind of large size, thin walled (long 3m-13m) alignment system, the range finding of employing laser displacement sensor, the method in datum line rail and fixture gap of finely tuning by screw thread is carried out the adjusting of linearity.
Background technology
Straightener is the machine for the parts such as axostylus axostyle, square steel tubing, weldment are carried out to alignment, and by alignment, to obtain, desirable linearity requires or rotating accuracy requirement, guarantees that parts can reach assembly precision.Big-length or large-size workpiece (8m-13m) are along with development of manufacturing needs higher certainty of measurement, need the high-precision guide rail of big-length as datum line rail, the stress that big-length guide rail causes on workbench because screw thread is fixed on is crooked, some big-length guide rail is to be spliced by many short lead rail, these factors cannot guarantee high-precision linearity, need to regulate calibration.The linearity that detects workpiece need to lean on checkout gear to move on datum line rail, and the fit-up gap of checkout gear and datum line rail is inhomogeneous, also can exert an influence to measurement result, will consider the straight line degree that checkout gear moves when datum line rail is regulated.
Working site adopts the angle measurement amount instrument such as level meter and optical flatness gauge to measure guide rail linearity error more at present, by pitch method, obtains the value of measuring.It is level meter etc. to be placed directly on guide rail or to be placed on bridge plate bridge plate is placed on guide rail again, along guide rail, by pitch continuous measurement piecemeal, reading is calculated or adopts graphing method to try to achieve the error amount of linearity.And this method cannot be applied in the situation that guide rail is fixed on workbench side, and precision is lower, and operation is difficult for, and need to guarantee the linearity that checkout gear moves, and need to consider the problem that checkout gear and datum line rail fit-up gap are inhomogeneous.The light that laser interferometry utilizes double-frequency laser generator to send is divided into the two-beam that frequency is different, and this two-beam is produced interfere, and Lars, the whirlpool prism that pauses of usining is measured as position sensor.Its advantage is that measuring distance is large, measuring speed is high, but the jamming performance of vibration resistance and anti-environment is poor, and price is more expensive, less in the on-the-spot use of machining at present.
External many countries are all paid much attention to straight line degree measurement field always, and constantly release novel high-precision verticality measuring method and device, to meet the growing requirement to product quality.At present domestic but not high to the certainty of measurement of linearity, particularly in the straight line degree measurement field of big-length scope.Guangzhou metering institute adopts two-frequency laser interferometer method to build up the smooth precise guide rail of 50 m, and the error of every meter is better than 0.003 mm.Within 1013, China National Measuring Science Research Inst. builds up the smooth precise guide rail of 80 m, is only second to Japanese 60m guide rail aspect rail length, and the error of every meter is better than 0.0002 mm, aspect performance indications in first place in the world.But these cost of manufacture expenses are higher, cannot be widely used in machining scene.
Summary of the invention
The purpose of this utility model is to provide a kind of straightness adjusting device of big-length datum line rail, its low cost, high accuracy, reliability is strong, easy to operate and be applicable to the mechanical device that under the field condition complicated situation of workshop, big-length datum line rail (long 8m-13m) carried out to linearity adjusting, for Linearity surveying and the alignment of the large size, thin walled workpiece of big-length provides effective benchmark.
The utility model solves the technical scheme that its technical problem adopts: a kind of straightness adjusting device of big-length datum line rail, and by scale fixture, datum line rail adjusting device and laser displacement sensor three parts form; It is characterized in that: the fixed mount both sides in scale fixture are provided with He You Building L, left Building L, scale axle is equipped with respectively on He You Building L in left Building L, and scale end is fixed with tightening device; The top of scale is enclosed within the little drop center wheel on the left Building L of fixed mount, and end is wrapped in the click inside of tightening device; The fixed mount side of datum line rail adjusting device connects wired rail fixed block, on the long datum line rail that left datum line rail and the docking of right datum line rail form, fix wired rail adjustment block, long datum line rail is installed a line rail adjustment block every 100mm-300mm, corresponding on fixed mount hookup wire rail fixed block, line rail adjustment block and line rail fixed block are connected by screw and reserve the gap of 2mm left and right, and spacing can be adjusted by screw; At fixed mount, slidably connect laser displacement sensor.
Good effect of the present utility model is: the checkout gear (laser displacement sensor) that is directly beneficial to detection large-size workpiece is finely tuned big-length (8000mm-12000mm) datum line rail, thereby other have been greatly reduced for regulating the equipment of datum line rail linearity to reduce costs, convenient adjusting again, and by the mode segmentation fine setting datum line rail of screw thread transmission, easy to operate, reliability is strong, and precision is higher, the error of every meter is better than 0.02mm, and the error of total length 13m is ± 0.05mm.
Accompanying drawing explanation
Fig. 1 is big-length datum line rail straightness adjusting device graphics of the present utility model.
Fig. 2 is big-length datum line rail straightness adjusting device front view.
Fig. 3 is big-length datum line rail straightness adjusting device top view.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described: as shown in Figure 1, a kind of straightness adjusting device of big-length datum line rail, by scale fixture, datum line rail adjusting device and laser displacement sensor three parts form; It is characterized in that: fixed mount 2 both sides in scale fixture are provided with left Building L 1 and right Building L 6, on left Building L 1 and right Building L 6, scale axle are housed respectively, and scale 4 ends are fixed with tightening device 7; The top of scale 4 is enclosed within the little drop center wheel on the left Building L 1 of fixed mount, and end is wrapped in the click inside of tightening device 7; Fixed mount 2 sides of datum line rail adjusting device connect wired rail fixed block 10, on the long datum line rail that left datum line rail 3 and 5 docking of right datum line rail form, fix wired rail adjustment block 9, long datum line rail is installed a line rail adjustment block 9 every 100mm-300mm, corresponding on fixed mount 2 hookup wire rail fixed block 10, line rail adjustment block 9 is connected by screw and reserves the gap about 2mm with line rail fixed block 10, and spacing can be adjusted by screw; At fixed mount 3, slidably connect laser displacement sensor 8.
Fixing and the adjustment of scale, the click that scale 4 ends is fixed on to tightening device 7 on right Building L 6 is inner, be wrapped in ratchet 12 coaxial rotatable and be with on reeded disk, top can be pulled out in the groove being suspended on left Building L 1 by draw ring, rotate counterclockwise regulating handle 13, ratchet 11 is strained scale 4 by the gear teeth that block ratchet 12.
As shown in Figure 2,3, the gap of datum line rail and fixed mount is adjusted, line rail fixed block 10 positions that are fixed on fixed mount 2 are kept immobilizing, be fixed on the gap of leaving 1mm-2mm between the line rail adjustment block 9 of datum line flange of rail end and line rail fixed block 10, by 3 screws, connect and can finely tune its gap, between datum line rail and fixed mount, every 100mm-300mm, a set of clearance fine adjustment device is installed.
Adjust the laser displacement sensor 8 on checkout gear, a laser is beaten on scale 4, scale 4 can be considered benchmark owing to being straightened, checkout gear can be along the transverse shifting at the uniform velocity of the tooth bar level on fixed mount 2, the measured value gathering is that the distance between laser displacement sensor 8 and scale 4 is L, established standards value is SL, precision can reach 0.001mm, the every mobile 100mm of checkout gear, regulate respectively three screws on line rail regulating block 9, make the numerical value L value of the being near the mark SL detecting, by regulating the several line rail regulating blocks in datum line rail length range to make the linearity of datum line rail reach standard value.Detect adjusting complete, scale is packed up in order to avoid affects measurement alignment and the convenient adjustment of datum line rail linearity later of workpiece for measurement.
Claims (1)
1. the straightness adjusting device of big-length datum line rail, by scale fixture, datum line rail adjusting device and laser displacement sensor three parts form; It is characterized in that: the fixed mount both sides in scale fixture are provided with He You Building L, left Building L, scale axle is equipped with respectively on He You Building L in left Building L, and scale end is fixed with tightening device; The top of scale is enclosed within the little drop center wheel on the left Building L of fixed mount, and end is wrapped in the click inside of tightening device; The fixed mount side of datum line rail adjusting device connects wired rail fixed block, on the long datum line rail that left datum line rail and the docking of right datum line rail form, fix wired rail adjustment block, long datum line rail is installed a line rail adjustment block every 100mm-300mm, corresponding on fixed mount hookup wire rail fixed block, line rail adjustment block and line rail fixed block are connected by screw and reserve the gap of 2mm left and right, and spacing can be adjusted by screw; At fixed mount, slidably connect laser displacement sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568517.1U CN203541247U (en) | 2013-09-13 | 2013-09-13 | Straightness regulating device of long reference linear rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320568517.1U CN203541247U (en) | 2013-09-13 | 2013-09-13 | Straightness regulating device of long reference linear rail |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203541247U true CN203541247U (en) | 2014-04-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320568517.1U Expired - Fee Related CN203541247U (en) | 2013-09-13 | 2013-09-13 | Straightness regulating device of long reference linear rail |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203541247U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783736A (en) * | 2016-05-18 | 2016-07-20 | 王帝 | Horizontal intelligent length reference instrument |
| CN107063136A (en) * | 2017-01-20 | 2017-08-18 | 盐城工学院 | Guide rail detection method and system |
| CN107175356A (en) * | 2017-04-27 | 2017-09-19 | 广东鼎科技有限公司 | Midline positioning device and localization method |
| CN108051236A (en) * | 2018-01-31 | 2018-05-18 | 中国测试技术研究院机械研究所 | A kind of long length baseline |
-
2013
- 2013-09-13 CN CN201320568517.1U patent/CN203541247U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105783736A (en) * | 2016-05-18 | 2016-07-20 | 王帝 | Horizontal intelligent length reference instrument |
| CN105783736B (en) * | 2016-05-18 | 2018-10-30 | 王帝 | Horizontal smart length station meter |
| CN107063136A (en) * | 2017-01-20 | 2017-08-18 | 盐城工学院 | Guide rail detection method and system |
| CN107175356A (en) * | 2017-04-27 | 2017-09-19 | 广东鼎科技有限公司 | Midline positioning device and localization method |
| CN108051236A (en) * | 2018-01-31 | 2018-05-18 | 中国测试技术研究院机械研究所 | A kind of long length baseline |
| CN108051236B (en) * | 2018-01-31 | 2019-11-15 | 中国测试技术研究院机械研究所 | A kind of long length baseline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140416 Termination date: 20140913 |
|
| EXPY | Termination of patent right or utility model |