CN102735144B - Angle measuring device and measuring method thereof - Google Patents
Angle measuring device and measuring method thereof Download PDFInfo
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- CN102735144B CN102735144B CN2012101946948A CN201210194694A CN102735144B CN 102735144 B CN102735144 B CN 102735144B CN 2012101946948 A CN2012101946948 A CN 2012101946948A CN 201210194694 A CN201210194694 A CN 201210194694A CN 102735144 B CN102735144 B CN 102735144B
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Abstract
The invention provides an angle measuring device and an angle measuring method. The angle measuring device comprises a bracket, a roller set, a first gear set, a second gear set, a shaft system, an angle measuring part and a radial dimension measuring part, wherein the first roller transmits movement to a main graduation bar by the first gear set; and the second roller transmits the movement to a vernier graduation bar by the second gear set, so that circular movement of the roller is converted to be linear and horizontal movement of a rack. The angle measuring device is independent from the circle center on the end surface of a measured component, can accurately measure the specific angle of the component based on the outer circle or the inner hole of the component, is suitable for measuring a rotary angle, and in particular suitable for measuring the angle of similar large gears or gear ring type components in engineering machinery.
Description
Technical field
The present invention relates to a kind of angle measurement unit and measuring method thereof, belong to field of measuring technique.
Background technology
Along with people promote day by day to the attention rate of product quality, Product Precision, increasing modern industrial and mining enterprises are also accordingly more and more higher to the accuracy requirement of plant equipment.This forces in the production run of parts, should take into full account the rationality of design and the accuracy of processing, focuses on again low cost, the processing friendly of product.In reality processing, be similar to large gear, gear ring class annular and disk-shaped part etc. in process, need to process various holes or other processing elements at end face.The primary prerequisite of this type of processing element processing, be can accurately find the processing element position at end face, and this has just produced demand to the accurate measurement of angle.For this type of dish type or ring-shaped work pieces, current large multi-angle measuring device is in measuring process, dependence to the round heart of part end face is higher, the line relative difficult, the measuring technique that demand is certain, the operation relative complex, for the workshop operating mode, maintainability requires high, and cost is also higher.
Summary of the invention
Goal of the invention: technical matters to be solved by this invention is, for the deficiencies in the prior art, to propose a kind of angle measurement unit accurate, easy and simple to handle, that cost is low and measuring method thereof measured.
Technical scheme: the invention provides a kind of angle measurement unit, comprise axle system, support, roller set, gear set, tooth bar group, measurement of angle part and radial dimension measure portion.
Described axle is to comprise axle one, axle two and axle three, and described axle is to be fixed on described support.Described roller set comprises the first roller and the second roller; Described gear set comprises the first gear, the second gear, the 3rd gear, the 4th gear, the 5th gear and the 6th gear; Described tooth bar group comprises the first tooth bar and the second tooth bar; Described the first roller and the second roller are arranged on the two ends of described axle one; Described the first gear is fixedly connected with the first roller, the second roller respectively with the 4th gear; Described the second gear and the 5th gear arrange on axle two, respectively with described the first gear and the engagement of the 4th gear; Described the 3rd gear and the 6th gear are arranged on axle three, respectively with described the second gear and the engagement of the 5th gear; Described the first tooth bar and the second tooth bar mesh with described the 3rd gear and the 6th gear respectively; Roller set is rotated along the circumferencial direction of tested part nose circle face, and the motion of driven gear group is with the motion of carry-over bar group again by gear set, the circular motion of roller set is converted into to the horizontal rectilinear motion of tooth bar; Described measurement of angle partly comprises master calibration bar and vernier graduation bar, and described master calibration bar is connected on the first tooth bar, and the vernier graduation bar is connected on the second tooth bar; Scale mark on described master calibration bar and vernier graduation bar is zero graduation Xian Zai center, and scale value increases progressively successively to two ends; The scale value of reading through master calibration bar and vernier graduation bar, be and the invention provides the measured angle value of angle measurement unit; Further, by changing the range of different master calibration bar adjustable-angle measurement mechanisms, change the vernier graduation adjustable precision; Described radial dimension measure portion comprises radially scale strip and sliding shoe, and described radially scale strip is fixed on described support, and described sliding shoe can be free to slide on described radially scale strip.
Wherein, roller set and gear set can rotate freely around axle, and described axle is only for back-up roller wheels and gear set, does not play rotating action.
Described support comprises support wheel, framework lateral plate and lateral support group; At grade, the auxiliary wheel group is moved and is supported whole body for described support wheel and described roller set; Described lateral support group comprises regulating sleeve, radial support plate and radial support nail, and described radial support nail contacts with periphery or the inner hole surface of tested part; Described radial support nail is fixedly connected with regulating sleeve by the radial support plate; Described regulating sleeve is connected by internal thread with described axle two, by the threads turn between axle two and regulating sleeve, regulates the contact point of radial support nail and part to the distance between roller.
Described radially scale strip is connected with framework lateral plate, support wheel and sliding shoe respectively.
The method of measurement of angle of the present invention comprises the following steps:
(1) radial support of angle measurement unit nail is contacted with periphery or the inner hole surface of tested part, the first roller and the second roller roll around the center of circle of tested part end face circle on the tested part end face, and radial support nail slides along periphery or the inner hole surface of tested part, and guarantee that axle two is all the time along the radial direction of tested part;
(2) first rollers pass motion to the master calibration bar by gear set, and the second roller passes motion to the vernier graduation bar by gear set, realize the circular motion of roller is converted into the straight line tangential movement of tooth bar; Measuring original state, the zero graduation line alignment of master calibration bar and vernier graduation bar;
(3) track that first and second roller rolls is two concentric circless centered by the round heart of tested part end face, thereby first roller and the second roller identical around the angular velocity of the round heart motion of tested part end face, the two linear velocity equals the angular velocity of angle measurement unit when the round heart motion of tested part end face and the product of orbital radius separately; In time t, the first roller and the second roller are when part end face rolls across certain angle θ, and the distance that first and second roller rolls across is not identical, and the two path length difference Δ C is proportional to the angle θ that first and second roller rolls across at part end face; The range difference that first and second roller rolls across is converted into by first and second gear set the range difference Δ C that master calibration bar and vernier graduation bar move
1, the range difference Δ C that described master calibration bar and vernier graduation bar move
1Be proportional to the range difference Δ C that first and second roller rolls across, and then, the range difference Δ C that master calibration bar and vernier graduation bar move
1Be proportional to the angle θ that first and second roller rolls across at part end face; The range difference Δ C moved by gathering master calibration bar and vernier graduation bar
1, determining the angle θ that first and second roller rolls across at part end face, the angle θ that described first and second roller rolls across at part end face equals the range difference Δ C that master calibration bar and vernier graduation bar move
1K doubly, wherein said scale factor K is because of the fixed numerical value of the concrete size of angle measurement unit, also can be used to revise the scale on master calibration bar and vernier graduation bar.
Beneficial effect: 1, the present invention is in the process taken measurement of an angle, the round heart of tested part end face is not had to dependence, cylindrical or endoporus with part are done measuring basis, can measure accurately the concrete angle of part, be applicable to the measurement to the anglec of rotation, be specially adapted to the measurement of similar large gear in engineering machinery or gear ring type component angle; 2, for the workshop operating mode, adaptability is high, can regulate according to actual needs range and precision, and required maintenance requires low, and cost is low.
The accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present invention;
The C-C sectional view that Fig. 2 is Fig. 1;
Fig. 3 is perspective view of the present invention;
The principle schematic that Fig. 4 is measuring method of the present invention;
The schematic diagram that Fig. 5 is measurement of angle part of the present invention.
Embodiment:
A kind of angle measurement unit that the present embodiment provides, as shown in Figure 1, 2, 3, comprise axle system, support, roller set, gear set, tooth bar group, measurement of angle part and radial dimension measure portion.
Described axle is to comprise axle 1, axle 27 and axle 39, and described axle is to be fixed on described support.Roller set can be at testee end face Free-rolling, and described roller set comprises the first roller 17 and the second roller 1; Described gear set comprises the first gear 18, the second gear 16, the 3rd gear 15, the 4th gear 3, the 5th gear 8 and the 6th gear 10; Described tooth bar group comprises the first tooth bar 14 and the second tooth bar 11; Described the first roller 17 and the second roller 1 are arranged on the two ends of described axle 1; Described the first gear 18 is fixedly connected with the first roller 17, the second roller 1 respectively with the 4th gear 3; Described the second gear 16 and the 5th gear 8 arrange on axle 27, respectively with described the first gear 18 and the 4th gear 3 engagements; Described the 3rd gear 15 and the 6th gear 10 are arranged on axle 39, respectively with described the second gear 16 and the 5th gear 8 engagements; Described the first tooth bar 14 and the second tooth bar 11 mesh with described the 3rd gear 15 and the 6th gear 10 respectively; Roller set is rotated along the circumferencial direction of tested part nose circle face, and the motion of driven gear group is with the motion of carry-over bar group again by gear set, the circular motion of roller set is converted into to the horizontal rectilinear motion of tooth bar; Described measurement of angle partly comprises master calibration bar 13 and vernier graduation bar 12, and described master calibration bar 13 is connected on the first tooth bar 14, and vernier graduation bar 12 is connected on the second tooth bar 11; Master calibration bar 13 needs to align at the measurement initial time with the zero graduation line of vernier graduation bar 12; Master calibration bar 13 scale values and vernier graduation bar 12 scale values, after the adjusted coefficient K correction, are being measured state is read finally numerical value and are being the numerical value of the part angle of required measurement, and described K is the numerical value relevant with the size of angle measurement unit.Master calibration bar 13 can be regulated range by changing different master calibration bars 13 according to the actual requirements with vernier graduation bar 12, by changing vernier graduation bar 12, carrys out degree of regulation.Described radial dimension measure portion comprises radially scale strip 20 and sliding shoe 19, and described radially scale strip 20 is fixed on described support, and described sliding shoe 19 can be free to slide on described radially scale strip.Wherein, slide block 19 is marked with scale value, and coordinates scale strip 20 radially to read the radial coordinate of slide block.Scale value in conjunction with reading on slide block 19, the radial coordinate of radially reading on scale strip 20 and master calibration bar 13, vernier graduation bar 12, just can find Working position at the tested part end face accurately.
Roller set, gear set are central rotation with axle, and are to be arranged on support by axle.Described support comprises support wheel 21, framework lateral plate 4 and lateral support group, and at grade, the auxiliary wheel group is moved and supported whole body for described support wheel 21 and described roller set.Described lateral support group comprises regulating sleeve 6, radial support plate 5 and radial support nail 22, and described radial support nail 22 contacts with periphery or the inner hole surface of tested part; Described radial support nail 22 is fixedly connected with regulating sleeve 6 by radial support plate 5; Described regulating sleeve 6 is connected by internal thread with described axle 27, by the threads turn between axle 27 and regulating sleeve 6, regulates the contact point of radial support nail 22 and part to the distance between roller.
In conjunction with Fig. 4, Fig. 5, angle measurement method embodiment provided by the invention comprises the following steps:
1. adjust the first tooth bar 14 and the second tooth bar 11 positions in the reference position of measuring, adjust master calibration bar 13 and vernier graduation bar 12 positions simultaneously, make the zero graduation line alignment of two scale strips;
2. radial support nail 22 contacts with periphery or the inner hole surface of tested part all the time by two contacts, guarantees that axle 27 is the radial direction along tested part all the time; The first roller 17 and the second roller 1 move in a circle around the center of circle of tested part end face circle on the tested part end face, and the track that described the first roller 17 and the second roller 1 motion produce is two concentric circless; Concrete, the center of circle of the first roller 17 tracks is the round heart of part end face (being designated as " O "), radius be the first roller 17 to the round heart of tested part end face apart from (being designated as T
1); The center of circle of the second roller 1 track is the round heart of part end face, and to be the second roller (be designated as T to the distance of the round heart O of tested part end face to radius
2).
3. the cylindrical of measuring part of take is example, and when measuring certain angle (being designated as θ), the distance that the first roller 17 rolls across at piece surface (is designated as C
1) be C
1=θ T
1, the distance that the second roller 1 rolls across at piece surface (is designated as C
2) be C
2=θ T
2, poor (being designated as Δ C) of the distance that the first roller 17 and the second roller 1 roll across at piece surface sets up mathematical relation with tested angle: θ=Δ C/(T
2-T
1).Poor (the Δ C) of the distance that described the first roller 17 and the second roller 1 roll across at piece surface derives as follows with the mathematical relation of tested angle (θ):
The distance that the first roller 17 rolls across at piece surface: C
1=θ T
1
The distance that the second roller 1 rolls across at piece surface: C
2=θ T
2
: the first roller 17 and the second roller 1 at piece surface, roll across the distance poor: Δ C=C
2-C
1=θ (T
2-T
1)
: the mathematical relation of poor (the Δ C) of the distance that described tested angle (θ) and the first roller 17 and the second roller 1 roll across at piece surface: θ=Δ C/(T
2-T
1).
Described (T
2-T
1) be the spacing of the first roller 17 and the second roller 1, be the definite value relevant with the angle measurement unit size.
4. the radius of the first roller 17 is designated as R
1, the radius of the first gear 18 is designated as R
C1, the radius of the second gear 16 large ends is R
C2, the radius of the second gear 16 small ends is designated as R
C3.
By following steps, the distance that distance and the master calibration bar 13 that the first roller 17 is rolled across passed by, carry out the mathematical relation derivation:
1) when measuring certain tested angle (θ), the first roller 17 and the first gear 18 are bolted, the distance (C that the first roller 17 rolls across
1) and the distance that rolls across of the first gear 18 reference circles (be designated as S
1) relation in direct ratio, described proportional relationship is: C
1=S
1(R
1/ R
C1);
2) the first gear 18 and the large end engagement of the second gear 16, the mounting center distance of the two is reference center distance, the distance (S that therefore the first gear 18 reference circles roll across
1) and the distance that rolls across of the large end of the second gear 16 reference circle (be designated as S
2) equal (S
1=S
2);
3) distance (S that the large end reference circle of the second gear 16 rolls across
2) (be designated as S with its small end reference circle
3) roll across the distance relation in direct ratio, described proportional relationship is: S
2=S
3(R
C2/ R
C3);
4) the second gear 16 small ends and the 3rd gear 15 engagements, the mounting center distance of the two is reference center distance, the distance (S that therefore the second gear 16 small end reference circles roll across
3) and the distance that rolls across of the 3rd gear 15 reference circles (be designated as S
4) equal (S
3=S
4);
5) the 3rd gear 15 and the first tooth bar 14 intermesh, and the circular motion of the 3rd gear 15 are converted into to the rectilinear motion of the first tooth bar 14, in this process, and the distance (S that the 3rd gear 15 reference circles roll across
4) and the first tooth bar 14 air line distance of passing by (be designated as S
5) equal (S
4=S
3).
In described above-mentioned steps, comprehensively each expression formula draws: C
1=(S
3R
1R
C3)/(R
C1R
C2)
5. when measuring certain tested angle (θ), the distance that the second roller 1 rolls across is designated as C
2, the distance that the 4th gear 3 reference circles roll across is designated as S
4, the distance that the large end reference circle of the 5th gear 8 rolls across is designated as S
5, the distance that the 5th gear 8 small end reference circles roll across is designated as S
6, the distance that the 6th gear 10 reference circles roll across is designated as S
7, the air line distance that the second tooth bar 11 is passed by is designated as S
8.
In measuring process, the dimensional parameters of the second roller 1 and the first roller 17 dimensional parameters are identical, remember that its radius is R
1, the 4th gear 3 dimensional parameters and the first gear 18 dimensional parameters are identical, remember that its reference radius is R
C1, the 5th gear 8 dimensional parameters and the second gear 16 dimensional parameters are identical, remember that its large end reference radius is R
C2, remember that its small end reference radius is designated as R
C3, the 6th gear 10 dimensional parameters and its reference radius of the identical note of the 3rd gear 15 dimensional parameters are R
C3.
The 4th gear 3, the large end mounting center of the 5th gear 8 apart from and the first gear 18, the large end mounting center of the second gear 16 apart from identical, the 5th gear 8 small ends, the 6th gear 10 mounting center apart from the second gear 16 small ends, the 3rd gear 15 mounting center apart from identical.
According to above description, it will be appreciated by those skilled in the art that C
2=(S
6R
1R
C3)/(R
C1R
C2).
Comprehensive step (4), (5):
C
2-C
1=（S
6-S
5）·（R
1·R
C3)/（R
C1·R
C2）
Comprehensive step (3):
C
2-C
1=θ·（T
2-T
1）
Comprehensive step (3), (4), (5) obtain:
θ=（S
6-S
5）·（R
1·R
C3)/{(R
C1·R
C2)·(T
2-T
1)}
Described (S
6-S
5) be that the first tooth bar 14 and the second tooth bar 11 air line distance of passing by is poor; Described (T
2-T
1) be the spacing of the first roller 17 and the second roller 1, be the definite value relevant with the angle measurement unit size; Described (R
1R
C3) item and (R
C1R
C2) be the relevant definite value of angle measurement unit size.
Based on above-mentioned θ and (S
6-S
5) proportional relationship, by measuring the angle measurement unit poor (S of air line distance that the first tooth bar 14 and the second tooth bar 11 are passed by measure beginning, during last current state
6-S
5) measure the size of tested angle.
As mentioned above, although meaned and explained the present invention with reference to specific preferred embodiment, it shall not be construed as the restriction to the present invention self.Under the spirit and scope of the present invention prerequisite that does not break away from the claims definition, can make in the form and details various variations to it.
Claims (8)
1. an angle measurement unit, comprise axle system, support, roller set, gear set, tooth bar group, measurement of angle part and radial dimension measure portion;
Described axle is to comprise axle one, axle two and axle three, and described axle is to be fixed on described support; Described roller set comprises the first roller and the second roller; Described gear set comprises the first gear, the second gear, the 3rd gear, the 4th gear, the 5th gear and the 6th gear; Described tooth bar group comprises the first tooth bar and the second tooth bar; Described the first roller and the second roller are arranged on the two ends of described axle one; Described the first gear is fixedly connected with the first roller, the second roller respectively with the 4th gear; Described the second gear and the 5th gear are arranged on axle two, respectively with described the first gear and the engagement of the 4th gear; Described the 3rd gear and the 6th gear are arranged on axle three, respectively with described the second gear and the engagement of the 5th gear; Described the first tooth bar and the second tooth bar mesh with described the 3rd gear and the 6th gear respectively; Roller set is rotated along the circumferencial direction of tested part nose circle face, and the motion of driven gear group is with the motion of carry-over bar group again by gear set, the circular motion of roller set is converted into to the horizontal rectilinear motion of tooth bar; Described measurement of angle partly comprises master calibration bar and vernier graduation bar, and described master calibration bar is connected on the first tooth bar, and the vernier graduation bar is connected on the second tooth bar; Described radial dimension measure portion comprises radially scale strip and sliding shoe, and described radially scale strip is fixed on described support, and described sliding shoe can be free to slide on described radially scale strip.
2. angle measurement unit according to claim 1, it is characterized in that: described support comprises the lateral support group, described lateral support group comprises regulating sleeve, radial support plate and radial support nail, and described radial support nail contacts with periphery or the inner hole surface of tested part; Described radial support nail is fixedly connected with regulating sleeve by the radial support plate; Described regulating sleeve is connected by internal thread with described axle two, by the threads turn between axle two and regulating sleeve, regulates the contact point of radial support nail and part to the distance between roller.
3. angle measurement unit according to claim 1, it is characterized in that: described support also comprises support wheel, at grade, the auxiliary wheel group is moved and is supported whole body for described support wheel and described roller set.
4. angle measurement unit according to claim 3, it is characterized in that: described radially scale strip is fixed on the top of described support wheel.
5. angle measurement unit according to claim 1, it is characterized in that: the scale mark on described master calibration bar and vernier graduation bar is zero graduation Xian Zai center, and scale value increases progressively successively to two ends.
6. angle measurement unit according to claim 1, it is characterized in that: described roller set and gear set all rotate freely around axle.
7. angle measurement unit according to claim 1 carries out the method for measurement of angle, it is characterized in that: comprise the following steps:
(1) radial support of angle measurement unit nail is contacted with periphery or the inner hole surface of tested part, the first roller and the second roller roll around the center of circle of tested part end face circle on the tested part end face, and radial support nail slides along periphery or the inner hole surface of tested part, and guarantee that axle two is all the time along the radial direction of tested part;
(2) first rollers pass motion to the master calibration bar by gear set, and the second roller passes motion to the vernier graduation bar by gear set, realize the circular motion of roller is converted into the straight line tangential movement of tooth bar; Measuring original state, the zero graduation line alignment of master calibration bar and vernier graduation bar;
(3), in time t, the first roller and the second roller, when part end face rolls across certain angle θ, gather the range difference Δ C that master calibration bar and vernier graduation bar move
1, determining the angle θ that first and second roller rolls across at part end face, the angle θ that described first and second roller rolls across at part end face equals the range difference Δ C that master calibration bar and vernier graduation bar move
1K doubly, wherein said scale factor K is because of the fixed numerical value of the concrete size of angle measurement unit.
8. the method for measurement of angle according to claim 7, it is characterized in that: the scale on master calibration bar and vernier graduation bar all passes through the scale factor K correction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101946948A CN102735144B (en) | 2012-06-13 | 2012-06-13 | Angle measuring device and measuring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101946948A CN102735144B (en) | 2012-06-13 | 2012-06-13 | Angle measuring device and measuring method thereof |
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| CN102735144B true CN102735144B (en) | 2013-12-04 |
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|---|---|---|---|
| CN2012101946948A Active CN102735144B (en) | 2012-06-13 | 2012-06-13 | Angle measuring device and measuring method thereof |
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|---|---|---|---|---|
| CN104048585B (en) * | 2014-06-30 | 2016-08-24 | 中国西电电气股份有限公司 | Many gyrations measurement apparatus |
| CN108507449B (en) * | 2016-02-02 | 2020-04-21 | 福建省马尾造船股份有限公司 | Rudder system rudder steering angle determining method |
| CN106500566B (en) * | 2016-12-08 | 2022-05-13 | 江苏理工学院 | Dot-line type mileage measuring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3320785A1 (en) * | 1983-06-09 | 1984-07-12 | Daimler-Benz Ag, 7000 Stuttgart | Device for measuring angles, in particular taper angles |
| US5641957A (en) * | 1994-11-11 | 1997-06-24 | Daewoo Electronics Co., Ltd. | Inclination angle sensing apparatus for use in a projector |
| CN2419574Y (en) * | 2000-04-05 | 2001-02-14 | 徐成铣 | Entity measuring instrument |
| CN201555550U (en) * | 2009-12-15 | 2010-08-18 | 重庆美心曲轴制造有限公司 | Motorcycle crank timing gear mounting angle detection device |
| CN202630880U (en) * | 2012-06-13 | 2012-12-26 | 南京金鑫传动设备有限公司 | Angle measuring device |
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