CN101476872B - Target sphere mounting stand suitable for large aperture self-centering - Google Patents
Target sphere mounting stand suitable for large aperture self-centering Download PDFInfo
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- CN101476872B CN101476872B CN2008100465978A CN200810046597A CN101476872B CN 101476872 B CN101476872 B CN 101476872B CN 2008100465978 A CN2008100465978 A CN 2008100465978A CN 200810046597 A CN200810046597 A CN 200810046597A CN 101476872 B CN101476872 B CN 101476872B
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Abstract
The invention discloses a target ball mount which is used for mounting target balls of a laser tracking instrument and suitable for large-aperture self-centering, wherein an equant sliding chute (2) which is around the circumference of a central groove (5), intersected with the circle center by being symmetrical with an axial line, and extended outwards in the radial direction is arranged on a target ball mounting base (1); a screw target ball mounting head (7) is arranged on a positioning pin (6), positioned in the center of the central groove, extended upwards vertically, and extended out of the end face; a central slider (3) of which the shape and the dimension are consistent with those of the central groove provided with the equant sliding chute (2) is arranged inside a central sliding chute through a central positioning hole of the central slider (3); a slider bevel (11) is arranged on the central slider (3); and lug bevels (13) are arranged on uniformly distributed movable lugs (12) in equant parts. The invention utilizes the slider bevel to fix the target ball mount on a hole to be measured with large common difference, guarantees superposition of the center of the target ball mount and the center of the hole to be measured, and reduces mounting errors; and the target ball mount is convenient to assemble and disassemble, and suitable for laser tracing measurement of target balls with the aperture between 30 and 80 millimeters and the aperture common difference less than IT12.
Description
Technical field
The invention relates to the device of laser tracking measurement target ball place coordinate position, more particularly, the present invention relates to a kind of self-centering mount pad that is used to install this target ball.
Background technology
Laser tracking measurement is to get to the corner cube glazed thread with laser to return by former road, and direction that penetrates according to laser and laser are from the coordinate figure of the distance calculation target ball position of sending some the target ball.The characteristics of laser tracking measurement are that measurement range is big, the measuring accuracy height.Measurement radius such as Leica LTD840 laser tracker is 40m, and the measuring accuracy in the gamut scope can reach ± 15 μ m+6 μ m/m.Because target ball profile is spherical, except spherical appearance, does not have other shape faces that can be used for locating, when utilizing laser tracking measurement commercial measurement product feature, must use target ball mounting seat.
Target ball mounting seat can be divided into the target ball mounting seat that lining face is used according to the difference of measurement features, and the target ball mounting seat of measured hole position is measured the target ball mounting seat of right angle rib etc.Wherein, the target ball mounting seat of measured hole position utilizes reference column that the target ball is navigated on the hole that needs to measure, and then the target ball is placed on the target ball mounting seat.The baseline results of laser tracking measurement is the coordinate figure of the target ball centre of sphere, and the physical location of measured hole obtains by the radius of deflection of software compensation target ball and the offset distance of target ball mounting seat.The precision of measuring also comprises the manufacturing and the installation accuracy of target ball mounting seat except the measuring accuracy of laser tracker itself.
At present, the target ball mounting seat of band reference column requires to cooperate for no gap between reference column and the measured hole.Clearance fit can make a side in target ball mounting seat deflection hole and make measurement result have deviation, makes to record point coordinate not at the center of measured hole, and the hole axle tolerance fit between measured hole and the reference column is H7/f7 at present, and concrete gap is directly proportional with pore size.When the measured hole accuracy class was higher, this no gap cooperated and can realize by improving target ball mounting seat reference column precision.But when the precision of measured hole itself was hanged down, target ball mounting seat reference column precision can not realize that it cooperates with the no gap of measured hole.Therefore, the auto-centering target ball mounting seat of a kind of suitable low precision holes of design is very necessary.
Summary of the invention
The objective of the invention is at the measured hole diameter greater than 30mm, hole tolerance is less than the low precision measure hole of IT12, provide a kind of easy to loading and unloading, and be fit to wide-aperture auto-centering target ball mounting seat, with solve when the precision of measured hole itself when hanging down, target ball mounting seat reference column precision can not realize the no gap matching problem of itself and measured hole.
The technical solution adopted for the present invention to solve the technical problems is: a kind of target ball mounting seat of suitable large aperture self-centering, has a target ball mounting base that has reference column, be shaped on screw target ball installation head on the reference column, it is characterized in that: be shaped on around the central recess circumference on the target ball mounting base, and the axis of symmetry intersects at the center of circle, and outward extending diametrically three five equilibrium chutes; Described reference column is positioned at the central recess center, extends vertically upward, and stretches out the end face of target ball mounting base; With the above-mentioned central recess shape of five equilibrium chute, the central slider of the same size of having, center positioning hole by central slider is assemblied in the central recess, the movable projection front end of the five equilibrium chute outer rim of central recess is shaped on the projection inclined-plane, the central slider outer rim is shaped on the slide block inclined-plane, and three slide block inclined-planes on the described central slider match with projection inclined-plane on three movable projections of the five equilibrium chute outer rim of central recess.
The present invention has following beneficial effect.
The present invention utilizes the motion between the slide block inclined-plane, and the nut of depth direction is moved, and is converted into the radial motion of slide block, thereby target ball mounting seat is fixed on the bigger measured hole of tolerance.Though the tolerance of measured hole is bigger, the movable slider of three uniform circumference, by compressing of central slider gland nut, target ball mounting seat closely is connected with measured hole, the center that has guaranteed target ball mounting seat overlaps with the concentric of measured hole center, have the effect that navigates to the mounting hole center automatically, and reduced the alignment error of target ball mounting seat, improved measuring accuracy.
Easy to loading and unloading.During installation and removal, as long as a unique gland nut of turn.
Be fit to the tested aperture of 30mm-80mm, hole tolerance is less than the laser tracking measurement of IT12.
Description of drawings
The front view of Fig. 1 target ball mounting seat of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to cut-open view.
Fig. 3 target ball mounting seat pedestal of the present invention front view.
Fig. 4 is that the B-B of Fig. 3 is to cut-open view.
In the accompanying drawing: 1 target ball mounting base, 2 chutes, 3 central slider, 4 gland nuts, 5 central recess, 6 reference columns, 7 screw target ball installation head, 8 cylindrical magnetic irons, 9 target balls, 10 locating surfaces, 11, slide block inclined-plane, 12 movable projections, 13 projection inclined-planes.
Embodiment
In Fig. 1～Fig. 4, on the end face of a target ball mounting base 1 that has a reference column 6, be shaped on shown in Figure 3ly, around central recess 5 circumference, stretch out diametrically, its axis of symmetry intersects at the chute 2 in the center of circle.Central slider 3 outer rims are shaped on slide block inclined-plane 11.Three chutes are uniform along 120 ° of five equilibriums of central recess 5 circumference.Reference column 6 is positioned at the central recess central vertical and extends upward, and stretches out end face.On reference column 6, have screw target ball installation head 7.The free end end face of screw target ball installation head 7 is shaped on the taper actinal surface counterbore of laying target ball 9, and a cylindrical magnetic iron 8 that holds target ball 9 is housed in the hole.This target ball 9 can be the spheroid that has corner cube catoptron or TBR catoptron.End face outer rim at target ball mounting base 1 also is shaped on a circular orientation face 10 that is positioned at radially outer edge.This locating surface 10 is the faying faces that fit tightly with the measured hole end face.With above-mentioned central recess 5 shapes, the central slider of the same size 3 that has five equilibrium chute 2, be assemblied in the center chute 5 by its center positioning hole.Movable projection 12 front ends that trisection is distributed on the center briquetting of central slider 3 are shaped on projection inclined-plane 13.The movable projection 12 that has projection inclined-plane 13 is by the parallel spigot surface guiding in above-mentioned chute 2 both sides, slidably be assemblied in the chute 2 of target ball mounting base 1, three slide block inclined-planes 11 on the central slider 3 are matched with projection inclined-plane 13 on three that the are positioned at central recess 5 chute outer rims movable projections 12.Central slider 3 is fixing by the gland nut on the screw target ball installation head 74.
During use, the base of target ball mounting base 1 is put into measured hole, the locating surface 10 and the outside of measured hole are fitted tightly.In the chute of target ball mounting base 1, put into central slider 3, the slide block inclined-plane 11 on the central slider 3 is combined with projection inclined-plane 13 on the movable projection 12.Pack into the center positioning hole of target ball mounting base 1 of central slider 3, slide block inclined-plane 11 cooperates with projection inclined-plane 13, and promotion activity projection 12 outwards moves along chute, is adjacent to tested hole wall.Compress central slider 2 with gland nut 4, closely be connected with measured hole up to target ball mounting seat.The target ball is installed on target ball mounting seat, by laser tracker, can be according to the direction of laser ejaculation, laser sends the distance that a little arrives the target ball, calculates and measures the coordinate figure of target ball position.During dismounting, sequence of operation is just in time opposite.
Claims (2)
1. the target ball mounting seat of a suitable large aperture self-centering, has a target ball mounting base (1) that has reference column (6), be shaped on screw target ball installation head (7) on the reference column (6), it is characterized in that: be shaped on the target ball mounting base (1) around central recess (5) circumference, and the axis of symmetry intersects at the center of circle, and outward extending diametrically three five equilibrium chutes (2); Described reference column (6) is positioned at central recess (5) center, extends vertically upward, and stretches out the end face of target ball mounting base (1); With above-mentioned central recess (5) shape, the central slider of the same size (3) that has five equilibrium chute (2), center positioning hole by central slider (3) is assemblied in the central recess (5), movable projection (12) front end of five equilibrium chute (2) outer rim of central recess (5) is shaped on projection inclined-plane (13), central slider (3) outer rim is shaped on slide block inclined-plane (11), and the projection inclined-plane (13) on three movable projections (12) of three the slide block inclined-planes (11) on the described central slider (3) and five equilibrium chute (2) outer rim of central recess (5) matches.
2. target ball mounting seat as claimed in claim 1 is characterized in that, the free end end face of described screw target ball installation head (7) is shaped on the taper actinal surface counterbore of laying target ball (9), and a cylindrical magnetic iron (8) that holds target ball (9) is housed in the counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100465978A CN101476872B (en) | 2008-11-19 | 2008-11-19 | Target sphere mounting stand suitable for large aperture self-centering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100465978A CN101476872B (en) | 2008-11-19 | 2008-11-19 | Target sphere mounting stand suitable for large aperture self-centering |
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| Publication Number | Publication Date |
|---|---|
| CN101476872A CN101476872A (en) | 2009-07-08 |
| CN101476872B true CN101476872B (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100465978A Active CN101476872B (en) | 2008-11-19 | 2008-11-19 | Target sphere mounting stand suitable for large aperture self-centering |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288111B (en) * | 2011-05-10 | 2013-05-08 | 上海市城市建设设计研究院 | Multi-connector matching foundation support for laser scanning measuring |
| CN102288110B (en) * | 2011-05-10 | 2013-05-08 | 上海市城市建设设计研究院 | Matching connecting bar for laser scanning measuring |
| CN102519361B (en) * | 2011-12-28 | 2014-03-05 | 二重集团（德阳）重型装备股份有限公司 | Special worktable for laser tracker and laser tracking measurement method |
| CN102607420B (en) * | 2012-04-01 | 2013-12-18 | 哈尔滨飞机工业集团有限责任公司 | Cursor ball |
| CN105115378B (en) * | 2015-08-17 | 2017-11-21 | 中国航空工业集团公司西安飞机设计研究所 | A kind of hole heart coordinate setting measurement apparatus |
| CN108267087B (en) * | 2016-12-30 | 2020-02-07 | 北京金风科创风电设备有限公司 | Positioning device and positioning method |
| CN107339925B (en) * | 2017-08-23 | 2020-03-27 | 中航飞机起落架有限责任公司 | High-reliability joint bearing point position detection device and detection method |
| CN112095684B (en) * | 2020-09-21 | 2022-03-04 | 山东农业大学 | Positioning device for installing reinforcement meter in existing pile foundation drill hole and working method of positioning device |
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2008
- 2008-11-19 CN CN2008100465978A patent/CN101476872B/en active Active
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| CN101476872A (en) | 2009-07-08 |
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