CN105157619A - System and method of detecting parallelism error between lathe turning axle and lathe knife rest guide rail - Google Patents
System and method of detecting parallelism error between lathe turning axle and lathe knife rest guide rail Download PDFInfo
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- CN105157619A CN105157619A CN201510404682.7A CN201510404682A CN105157619A CN 105157619 A CN105157619 A CN 105157619A CN 201510404682 A CN201510404682 A CN 201510404682A CN 105157619 A CN105157619 A CN 105157619A
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- lathe
- guide rail
- centrescope
- turning axle
- saddle guide
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Abstract
The invention relates to a system and a method of detecting a parallelism error between a lathe turning axle and a lathe knife rest guide rail. The system comprises a lathe, a multidimensional adjusting bench, a lathe knife rest guide rail, a fixed-axle tool and a centering instrument. The fixed-axle tool is fixedly arranged on the lathe through the multidimensional adjusting bench. The multidimensional adjusting bench drives the fixed-axle tool to perform translation and pitching. The centering instrument is arranged on the lathe knife rest guide rail and can slide freely on the lathe knife rest guide rail. The centering instrument and the fixed-axle tool are located on the same optical path. The invention provides the system used for detecting the parallelism error between the lathe turning axle and the lathe knife rest guide rail and characterized by convenient operation and reliable detection result, and the method.
Description
Technical field
The invention belongs to field of optical detection, relate to a kind of parallelism error detection system and detection method, particularly relate to a kind of lathe turning axle and lathe saddle guide rail parallelism error detecting system and method.
Background technology
Along with the development of space flight, aviation industry, the picture element of optical lens requires more and more higher, and therefore require increasingly stringent to optical system right alignment, high-axiality is usually processed by optical centering and ensured.The coaxial precision of optical centering processing rear lens group is determined by the running accuracy of lathe spindle and the optics of lens precision that centers, and the parallelism error of lathe turning axle relative to lathe saddle guide rail determines in addition.If tool guide is not parallel relative to lathe rotation, so will introduce certain mismachining tolerance in lathe tool turning process, make the verticality of turning end and turning axle poor, or the right alignment of size and turning axle is poor, capital makes the optical system right alignment after finally having assembled poor, outstanding image quality cannot be realized, therefore lathe turning axle and lathe saddle guide rail parallelism are as an important indicator of lathe of feeling relieved, have to pass through strict detection, detect qualified after can realize high-precision optical centering processing.
Summary of the invention
In order to solve the above-mentioned technical matters existed in background technology, the invention provides a kind of convenient operation and the reliable lathe turning axle of testing result and lathe saddle guide rail parallelism error detecting system and method.
Technical solution of the present invention is: the invention provides a kind of lathe turning axle and lathe saddle guide rail parallelism error detecting system, its special character is: described lathe turning axle and lathe saddle guide rail parallelism error detecting system comprise lathe, multidimensional adjusting table, lathe saddle guide rail, dead axle frock and centrescope; Described dead axle frock is fixedly installed on lathe by multidimensional adjusting table; Described multidimensional adjusting table drives dead axle frock translation and pitching; Described centrescope to be arranged on lathe saddle guide rail and freely to slide on lathe saddle guide rail; Described centrescope and dead axle frock are in same light path.
Above-mentioned dead axle frock comprises picture frame and is embedded in the cross-graduation plate in picture frame.
Above-mentioned dead axle frock also comprises and is embedded in the inner and trim ring for suppressing cross-graduation plate of picture frame.
Above-mentioned cross-graduation plate comprises two transparent surfaces be oppositely arranged; The depth of parallelism of described two relative transparent surfaces is not less than 0.02mm; The concentricity of described cross-graduation plate groove center and cross-graduation plate cylindrical is not less than 0.01mm.
Above-mentioned dead axle frock is fixedly installed on lathe by ring flange.
Based on a detection method for lathe turning axle as above and lathe saddle guide rail parallelism error detecting system, its special character is: described detection method comprises the following steps:
1) cross-graduation plate and trim ring are assembled in the picture frame of dead axle frock, dead axle frock is fixed on lathe spindle by multidimensional adjusting table; Centrescope is fixed on lathe saddle guide rail; Described centrescope freely can slide on lathe saddle guide rail;
2) drive dead axle frock translation and pitching by adjustment multidimensional adjusting table, make cross-graduation plate target punching and autocollimatic picture invariant position when lathe rotates in centrescope;
3) mobile centrescope on lathe saddle guide rail, changes the position of the relative lathe of centrescope, observes the situation of change of autocollimatic picture in centrescope, makes the change in location of autocollimatic picture in centrescope little as far as possible by the orientation and pitching adjusting centrescope; Judge that autocollimatic similarly is noly there is variable quantity, if so, then the variable quantity of autocollimatic picture is exactly the variable quantity that lathe turning axle and tool guide parallelism error cause, and the half of the variable quantity size of described autocollimatic picture is the error amount of lathe turning axle and the tool guide depth of parallelism; If not, then lathe turning axle and the tool guide depth of parallelism error free.
Advantage of the present invention is:
The present invention is based on optical autocollimating principle and optical centering process principle, by design dead axle frock, dead axle frock is overlapped with lathe turning axle, and adjust centrescope and make centrescope optical axis and dead axle frock optical axis optical axis coincidence, thus lathe turning axle and centrescope optical axis are connected, by the sliding translation of centrescope on lathe guide rail, monitor the shaking volume of cross-graduation plate frock autocollimatic picture in centrescope, then can realize the monitoring of lathe turning axle and lathe saddle guide rail parallelism error.
Accompanying drawing explanation
Fig. 1 is the principle schematic of parallelism error detection system;
Fig. 2 is the structural representation of dead axle frock of the present invention;
Fig. 3 is the structural representation of cross-graduation plate of the present invention;
Fig. 4 is the side view of Fig. 3;
Wherein:
1-lathe spindle; 2-lathe saddle guide rail; 3-multidimensional adjusting table; 4-dead axle frock; 41-picture frame, 42-trim ring, 43-cross-graduation plate; 5-centrescope.
Embodiment
The present invention is mainly in conjunction with optical centering principle and autocollimation principle and then provide a kind of lathe turning axle and lathe saddle guide rail parallelism error detecting system and method.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the invention provides a kind of lathe turning axle and lathe saddle guide rail parallelism error detecting system, comprise lathe, multidimensional adjusting table 3 and lathe saddle guide rail 2, lathe turning axle and lathe saddle guide rail parallelism error detecting system also comprise dead axle frock 4 and centrescope 5; Dead axle frock 4 is fixedly installed on lathe by multidimensional adjusting table 3; Centrescope 5 to be arranged on lathe saddle guide rail 2 and freely to slide on lathe saddle guide rail 2; Centrescope 5 and dead axle frock 4 are in same light path.Dead axle frock 4 comprises picture frame 41, be embedded in the cross-graduation plate 43 in picture frame 41 and be embedded in the inner and trim ring 42 for suppressing cross-graduation plate 43 of picture frame 41.
Dead axle frock 4 is cross-graduation plate 43 frock, and as shown in Figure 2, as shown in Figure 3 and 4, cross-graduation plate 43 and trim ring 42 are arranged in dead axle frock 4 picture frame 41 cross-graduation plate 43 schematic diagram dead axle frock 4 schematic diagram.In Fig. 3 and Fig. 4, A is end standard, and require that the depth of parallelism of two planes is better than 0.02mm, B is cylindrical benchmark, requires that the concentricity of cross-graduation plate 43 groove center and cylindrical is better than 0.01mm.
The step that the present invention is detecting lathe turning axle and lathe saddle guide rail 2 depth of parallelism is as follows:
1, by dead axle frock 4 by flange on lathe spindle 1;
2, by translation and the pitching of adjustment dead axle frock 4, cross-graduation plate 43 target punching and autocollimatic picture invariant position when lathe rotates in centrescope 5 is made;
3, movable centrescope 5 is relative to the position of lathe, observe the situation of change of autocollimatic picture in centrescope 5, now the variable quantity of autocollimatic image position is caused by two reasons, one be centrescope 5 optical axis relatively and the side-play amount of lathe guide rail, another is lathe turning axle and tool guide parallelism error.Make the change in location of autocollimatic picture in centrescope 5 little as far as possible by the orientation and pitching that adjust centrescope 5.If have skew along azimuth direction, the orientation, left and right of adjustment centrescope 5, if there is skew in height direction, then adjusts the pitch orientation of centrescope 5.After centrescope 5 has adjusted, now the variable quantity of autocollimatic picture is exactly the variable quantity because lathe turning axle and tool guide parallelism error cause, and the half of this offset variation amount size is then lathe turning axle and tool guide parallelism error value.
Claims (6)
1. lathe turning axle and a lathe saddle guide rail parallelism error detecting system, is characterized in that: described lathe turning axle and lathe saddle guide rail parallelism error detecting system comprise lathe, multidimensional adjusting table, lathe saddle guide rail, dead axle frock and centrescope; Described dead axle frock is fixedly installed on lathe by multidimensional adjusting table; Described multidimensional adjusting table drives dead axle frock translation and pitching; Described centrescope to be arranged on lathe saddle guide rail and freely to slide on lathe saddle guide rail; Described centrescope and dead axle frock are in same light path.
2. lathe turning axle according to claim 1 and lathe saddle guide rail parallelism error detecting system, is characterized in that: described dead axle frock comprises picture frame and is embedded in the cross-graduation plate in picture frame.
3. lathe turning axle according to claim 2 and lathe saddle guide rail parallelism error detecting system, is characterized in that: described dead axle frock also comprises and is embedded in the inner and trim ring for suppressing cross-graduation plate of picture frame.
4. the lathe turning axle according to Claims 2 or 3 and lathe saddle guide rail parallelism error detecting system, is characterized in that: described cross-graduation plate comprises two transparent surfaces be oppositely arranged; The depth of parallelism of described two relative transparent surfaces is not less than 0.02mm; The concentricity of described cross-graduation plate groove center and cross-graduation plate cylindrical is not less than 0.01mm.
5. lathe turning axle according to claim 4 and lathe saddle guide rail parallelism error detecting system, is characterized in that: described dead axle frock is fixedly installed on lathe by ring flange.
6., based on a detection method for lathe turning axle as claimed in claim 5 and lathe saddle guide rail parallelism error detecting system, it is characterized in that: described detection method comprises the following steps:
1) cross-graduation plate and trim ring are assembled in the picture frame of dead axle frock, dead axle frock is fixed on lathe spindle by multidimensional adjusting table; Centrescope is fixed on lathe saddle guide rail; Described centrescope freely can slide on lathe saddle guide rail;
2) drive dead axle frock translation and pitching by adjustment multidimensional adjusting table, make cross-graduation plate target punching and autocollimatic picture invariant position when lathe rotates in centrescope;
3) mobile centrescope on lathe saddle guide rail, changes the position of the relative lathe of centrescope, observes the situation of change of autocollimatic picture in centrescope, makes the change in location of autocollimatic picture in centrescope little as far as possible by the orientation and pitching adjusting centrescope; Judge that autocollimatic similarly is noly there is variable quantity, if so, then the variable quantity of autocollimatic picture is exactly the variable quantity that lathe turning axle and tool guide parallelism error cause, and the half of the variable quantity size of described autocollimatic picture is the error amount of lathe turning axle and the tool guide depth of parallelism; If not, then lathe turning axle and the tool guide depth of parallelism error free.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404682.7A CN105157619A (en) | 2015-07-10 | 2015-07-10 | System and method of detecting parallelism error between lathe turning axle and lathe knife rest guide rail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510404682.7A CN105157619A (en) | 2015-07-10 | 2015-07-10 | System and method of detecting parallelism error between lathe turning axle and lathe knife rest guide rail |
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| CN105157619A true CN105157619A (en) | 2015-12-16 |
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| CN201510404682.7A Pending CN105157619A (en) | 2015-07-10 | 2015-07-10 | System and method of detecting parallelism error between lathe turning axle and lathe knife rest guide rail |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526881A (en) * | 2016-12-16 | 2017-03-22 | 中国航空工业集团公司洛阳电光设备研究所 | Adjustment method for parallelism of linear guide rail in continuous zooming thermal imaging instrument |
| CN111897088A (en) * | 2020-07-23 | 2020-11-06 | 中国科学院西安光学精密机械研究所 | Large-aperture reflector assembling and adjusting device and method |
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| CN101556145A (en) * | 2009-04-29 | 2009-10-14 | 徐州工程学院 | Device and method for monitoring slow-speed and over-load rotor eccentricity image |
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| CN111897088A (en) * | 2020-07-23 | 2020-11-06 | 中国科学院西安光学精密机械研究所 | Large-aperture reflector assembling and adjusting device and method |
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