CN105509686A - Device and method for detecting different convex circular arc radiuses and judging circular arc degrees - Google Patents
Device and method for detecting different convex circular arc radiuses and judging circular arc degrees Download PDFInfo
- Publication number
- CN105509686A CN105509686A CN201610017886.XA CN201610017886A CN105509686A CN 105509686 A CN105509686 A CN 105509686A CN 201610017886 A CN201610017886 A CN 201610017886A CN 105509686 A CN105509686 A CN 105509686A
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- circular arc
- probe
- value
- detection
- detects
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/20—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a device for detecting different convex circular arc radiuses and judging circular arc degrees. The device comprises a workbench, a controller, and a linear guideway and a detection device arranged on the workbench, wherein a driving motor is arranged on one end of the linear guideway; a detection station connected with the driving motor through a ball screw is arranged on the linear guideway; a workpiece to be detected is arranged on the detection station; a detection motor and a probe are arranged on the detection device; a distance measuring sensor and an angle sensor are respectively arranged on the probe and the detection motor; the driving motor, the probe and the detection motor are respectively connected with the controller; the controller is further connected with a touch screen. The device for detecting the different convex circular arc radiuses and judging the circular arc degrees has the beneficial effects that a method for detecting the convex circular arc radiuses and judging the circular arc degrees in the prior art is greatly simplified through the introduction of a geometric calculation step, complicated equipment is simplified, the cost is reduced, and non-contact measurement is adopted, so that the surface of a product cannot be damaged; the device is wide in application range, easy to operate, high in safety, high in detection accuracy, high in efficiency, and very suitable for on-line detection.
Description
Technical field
The present invention relates to field of measuring technique, particularly relate to a kind of different convex arc radius and detect and circular arc degree decision maker and method.
Background technology
Circular arc degree refers to the circularity of circular arc, circular arc determines primarily of arc length and arc radius, when arc length is certain, arc radius determines circular arc degree of crook (curvature), and the circularity of circular arc has very important effect for raising machine-building and installation accuracy, prolongation machine operation life-span.Therefore, convex arc radius detects and judges extremely important with circular arc degree.Concave arc radius of the prior art detects the method judged with circular arc degree to be had a lot, such as, with arc height chord length method measure arc radius, arc radius is measured in rotary process, coordinate method is measured arc radius, computing machine and swept figure computing method and three-dimensional coordinates measurement etc., has plenty of contact, and accuracy of detection is low, some detection arc radius detect with circular arc degree decision means or corresponding appliance arrangement structure too complicated, equipment greatly, and price.
For the Related Technical Issues existed in prior art, at present effective solution is not yet proposed.
Summary of the invention
The object of this invention is to provide a kind of different convex arc radius to detect and circular arc degree decision maker and method, to overcome currently available technology above shortcomings.
The object of the invention is to be achieved through the following technical solutions:
A kind of different convex arc radius detects and circular arc degree decision maker, comprise worktable and controller, be arranged on the line slideway on table surface, be arranged on the pick-up unit on table surface, one end of this line slideway is provided with driving motor, this line slideway is provided with the monitor station be connected with driving motor by ball screw, is provided with workpiece to be detected at this monitor station away from the upper surface of table surface; This pick-up unit is provided with and detects motor and probe, further, on this probe and on the transmission shaft of detection motor, be respectively equipped with distance measuring sensor and angular transducer, this driving motor, probe are all connected with controller with detection motor, in addition, this controller is also connected with touch-screen.
Further, described distance measuring sensor is precision distance measurement sensor.
Further, described angular transducer is high-precision angle sensor.
Further, described line slideway is standard straight-line guide rail.
A kind of different convex arc radius detects and circular arc degree decision method, comprises the following steps:
S1, measurement mechanism and line slideway to be installed on the table, it is upper and detect on the transmission shaft of motor that distance measuring sensor and angular transducer are arranged on probe respectively, and monitor station to be arranged on line slideway and to be connected by the driving motor of ball screw with line slideway one end;
S2, on standard straight-line guide rail, mark out several location points of probe measurement O, then on tested dome arc, several location points to be measured are marked out, the critical conditions of the location point to be measured that tested dome arc marks out at least one be point of contact, another is breakpoint, or two is point of contact;
S3, by probe rotation one low-angle to critical conditions, and read the distance value a of location point to critical conditions of this probe measurement, then probe is rotated to another critical conditions, and read the distance value b of location point apart from this critical localisation point of this probe measurement, the angle theta that the location point that angular transducer reads twice critical localisation point and probe measurement is formed, measures corresponding a, b and θ value of multiple point;
S4, utilize geometry to calculate theoretical numerical formula to calculate convex arc radius value R to be measured in theory, formula is as follows: R=(a
2+ b
2-2abcos θ)/2asin θ; With
S5, Mean Value Formulas is utilized to calculate convex arc radius value R to be measured
p, formula is as follows: R
p=(R
1+ R
2+ R
3+ ~+R
n)/n, and by each survey calculation value and mean value R
pcompare, judge the circular arc degree of dome arc to be measured.
Further, theoretical measured value R and design load R is being carried out in described S4
0time relatively, first analytical error, length value and angle measurement error, apparatus system error and producing cause.
Beneficial effect of the present invention is: the present invention is by the introducing of geometry calculation procedure, enormously simplify prior art convexity arc radius and detect the method judged with circular arc degree, simplify too complicated equipment, reduce costs, non-contact measurement, can not injure product surface; Applied widely, easy to operate, security is high; Accuracy of detection is high, and efficiency is high, is highly suitable for line and detects.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is that the convex arc radius of difference according to the embodiment of the present invention detects the structural representation with circular arc degree decision maker;
Fig. 2 is that the convex arc radius of difference according to the embodiment of the present invention detects the structured flowchart with circular arc degree decision maker;
Fig. 3 is that the convex arc radius of difference according to the embodiment of the present invention detects the measuring principle figure with circular arc degree decision method.
In figure:
1, worktable; 2, controller; 3, line slideway; 4, pick-up unit; 5, driving motor; 6, ball screw; 7, monitor station; 8, motor is detected; 9, pop one's head in; 10, touch-screen.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of protection of the invention.
As shown in Figure 1 to Figure 3, the different convex arc radius of one according to embodiments of the invention detects and circular arc degree decision maker, comprise worktable 1 and controller 2, be arranged on the line slideway 3 on worktable 1 table top, be arranged on the pick-up unit 4 on worktable 1 table top, one end of this line slideway 3 is provided with driving motor 5, and this line slideway 3 is provided with the monitor station 7 be connected with driving motor 5 by ball screw 6, is provided with workpiece to be detected at this monitor station 7 away from the upper surface of worktable 1 table top; This pick-up unit 4 is provided with and detects motor 8 and probe 9, and, distance measuring sensor and angular transducer is respectively equipped with on this probe 9 and on the transmission shaft of detection motor 8, this driving motor 5, probe 9 are all connected with controller 2 with detection motor 8, in addition, this controller 2 is also connected with touch-screen 10.
Further, described distance measuring sensor is precision distance measurement sensor.
Further, described angular transducer is high-precision angle sensor.
Further, described line slideway 3 is standard straight-line guide rail.
A kind of different convex arc radius detects and circular arc degree decision method, comprises the following steps:
S1, measurement mechanism and line slideway to be installed on the table, it is upper and detect on the transmission shaft of motor that distance measuring sensor and angular transducer are arranged on probe respectively, and monitor station to be arranged on line slideway and to be connected by the driving motor of ball screw with line slideway one end;
S2, on standard straight-line guide rail, mark out several location points of probe measurement O, then on tested dome arc, several location points to be measured are marked out, the critical conditions of the location point to be measured that tested dome arc marks out at least one be point of contact, another is breakpoint, or two is point of contact;
S3, by probe rotation one low-angle to critical conditions, and read the distance value a of location point to critical conditions of this probe measurement, then probe is rotated to another critical conditions, and read the distance value b of location point apart from this critical localisation point of this probe measurement, the angle theta that the location point that angular transducer reads twice critical localisation point and probe measurement is formed, measures corresponding a, b and θ value of multiple point;
S4, utilize geometry to calculate theoretical numerical formula to calculate convex arc radius value R to be measured in theory, formula is as follows: R=(a
2+ b
2-2abcos θ)/2asin θ; With
S5, Mean Value Formulas is utilized to calculate convex arc radius value R to be measured
p, formula is as follows: R
p=(R
1+ R
2+ R
3+ ~+R
n)/n, and by each survey calculation value and mean value R
pcompare, judge the circular arc degree of dome arc to be measured.
Further, theoretical measured value R and design load R is being carried out in described S4
0time relatively, first analytical error, length value and angle measurement error, apparatus system error and producing cause.
During concrete use:
First, measurement mechanism and line slideway are installed on the table, it is upper and detect on the transmission shaft of motor that distance measuring sensor and angular transducer are arranged on probe respectively, and monitor station to be arranged on line slideway and to be connected by the driving motor of ball screw with line slideway one end;
Secondly, the equally spaced location point marking out probe measurement: O on standard straight-line guide rail
1, O
2, O
3, O
4, O
5, O
6, O
7, O
8, then on tested dome arc, mark out critical localisation point to be measured: A, B, C, D, E, F, G, the critical conditions two of the location point to be measured that tested dome arc marks out for point of contact and/or one be point of contact, another is breakpoint;
Again, by probe rotation one low-angle to critical conditions, and read the distance value a of location point apart from this critical localisation point of this probe measurement, then probe is rotated to another critical conditions, and read the distance value b of location point apart from this critical localisation point of this probe measurement, the angle theta that the location point that angular transducer reads twice critical localisation point and probe measurement is formed, measures corresponding a, b and θ value of multiple point;
From secondary, utilize geometry to calculate theoretical numerical formula to calculate convex arc radius value R to be measured in theory, formula is as follows:
R=（a
2+b
2-2abcosθ）/2asinθ
Wherein, a is O
1a, O
2a, O
5e, O
8the length of G, b is O
1c, O
2d, O
5f, O
8the length of B, θ is that angular transducer reads the angle ∠ AO turned over
1c, ∠ AO
2d, ∠ EO
5f, ∠ GO
8b;
And geometry is calculated the theoretical measured value R and design load R that theoretical numerical formula calculates
0compare; With
Finally, Mean Value Formulas is utilized to calculate convex arc radius value R to be measured
p, formula is as follows:
R
p=（R
1+R
2+R
3+R
4）/4
Wherein, R
1be a be O
1the length of A, b is O
1the length of C, θ is ∠ AO
1gained arc radius value during C; R
2be a be O
2the length of A, b is O
2the length of D, θ is ∠ AO
2gained arc radius value during D; R
3be a be O
5the length of E, b is O
5the length of F, θ is ∠ EO
5gained arc radius value during F; R
4be a be O
8the length of G, b is O
8the length of B, θ is ∠ GO
8gained arc radius value during B;
And by each survey calculation value and mean value R
pcompare, judge the circular arc degree of dome arc to be measured.
The numerical tabular of table 1 for detecting according to this method different dome arc and judge:
Table 1
In sum, by means of technique scheme of the present invention, by the introducing of geometry calculation procedure, enormously simplify prior art convexity arc radius and detect the method judged with circular arc degree, simplify too complicated equipment, reduce costs, non-contact measurement, can not injure product surface; Applied widely, easy to operate, security is high; Accuracy of detection is high, and efficiency is high, is highly suitable for line and detects.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. the convex arc radius of difference detects and circular arc degree decision maker, comprise worktable (1) and controller (2), be arranged on the line slideway (3) on worktable (1) table top, be arranged on the pick-up unit (4) on worktable (1) table top, it is characterized in that, one end of this line slideway (3) is provided with driving motor (5), this line slideway (3) is provided with the monitor station (7) be connected with driving motor (5) by ball screw (6), is provided with workpiece to be detected at this monitor station (7) away from the upper surface of worktable (1) table top; This pick-up unit (4) is provided with and detects motor (8) and probe (9), and, above and on the transmission shaft of detection motor (8) distance measuring sensor and angular transducer is respectively equipped with at this probe (9), this driving motor (5), probe (9) are all connected with controller (2) with detection motor (8), in addition, this controller (2) is also connected with touch-screen (10).
2. the convex arc radius of difference according to claim 1 detects and circular arc degree decision maker, and it is characterized in that, described distance measuring sensor is precision distance measurement sensor.
3. the convex arc radius of difference according to claim 1 detects and circular arc degree decision maker, and it is characterized in that, described angular transducer is high-precision angle sensor.
4. the convex arc radius of difference according to claim 1 detects and circular arc degree decision maker, and it is characterized in that, described line slideway (3) is standard straight-line guide rail.
5. the convex arc radius of difference detects and a circular arc degree decision method, it is characterized in that, comprises the following steps:
S1, measurement mechanism and line slideway to be installed on the table, it is upper and detect on the transmission shaft of motor that distance measuring sensor and angular transducer are arranged on probe respectively, and monitor station to be arranged on line slideway and to be connected by the driving motor of ball screw with line slideway one end;
S2, on standard straight-line guide rail, mark out several location points of probe measurement O, then on tested dome arc, several location points to be measured are marked out, the critical conditions of the location point to be measured that tested dome arc marks out at least one be point of contact, another is breakpoint, or two is point of contact;
S3, by probe rotation one low-angle to critical conditions, and read the distance value a of location point to critical conditions of this probe measurement, then probe is rotated to another critical conditions, and read the distance value b of location point apart from this critical localisation point of this probe measurement, the angle theta that the location point that angular transducer reads twice critical localisation point and probe measurement is formed, measures corresponding a, b and θ value of multiple point;
S4, utilize geometry to calculate theoretical numerical formula to calculate convex arc radius value R to be measured in theory, formula is as follows: R=(a
2+ b
2-2abcos θ)/2asin θ; With
S5, Mean Value Formulas is utilized to calculate convex arc radius value R to be measured
p, formula is as follows: R
p=(R
1+ R
2+ R
3+ ~+R
n)/n, and by each survey calculation value and mean value R
pcompare, judge the circular arc degree of dome arc to be measured.
6. the convex arc radius of difference according to claim 5 detects and circular arc degree decision method, it is characterized in that, is carrying out theoretical measured value R and design load R in described S4
0time relatively, first analytical error, length value and angle measurement error, apparatus system error and producing cause.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017886.XA CN105509686B (en) | 2016-01-12 | 2016-01-12 | A kind of difference dome arc radius detection and circular arc degree decision maker and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017886.XA CN105509686B (en) | 2016-01-12 | 2016-01-12 | A kind of difference dome arc radius detection and circular arc degree decision maker and method |
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| Publication Number | Publication Date |
|---|---|
| CN105509686A true CN105509686A (en) | 2016-04-20 |
| CN105509686B CN105509686B (en) | 2018-11-06 |
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ID=55717845
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084905A (en) * | 2018-08-24 | 2018-12-25 | 南京大学 | The method of detection dead zone probability is reduced in phase-sensitive optical time domain reflection system |
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| JP2008281468A (en) * | 2007-05-11 | 2008-11-20 | Tokyo Seimitsu Co Ltd | Angle indexing accuracy measuring device and method |
| CN102297676A (en) * | 2011-05-25 | 2011-12-28 | 常州工学院 | Cam contour detection system driven by wire rope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109084905A (en) * | 2018-08-24 | 2018-12-25 | 南京大学 | The method of detection dead zone probability is reduced in phase-sensitive optical time domain reflection system |
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| Publication number | Publication date |
|---|---|
| CN105509686B (en) | 2018-11-06 |
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Effective date of registration: 20220923 Address after: 323000 No.97 Xianxia Road, nanmingshan street, Liandu District, Lishui City, Zhejiang Province Patentee after: ZHEJIANG SIQIANG BEARING MANUFACTURING Co.,Ltd. Address before: No. 2, Wuzhaidi, Chengbei, Lishui City, Zhejiang Province, 323000 Patentee before: Gao Ye |
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