CN102564693B - High-precision suspension positioning structure and method thereof - Google Patents
High-precision suspension positioning structure and method thereof Download PDFInfo
- Publication number
- CN102564693B CN102564693B CN201210024364.4A CN201210024364A CN102564693B CN 102564693 B CN102564693 B CN 102564693B CN 201210024364 A CN201210024364 A CN 201210024364A CN 102564693 B CN102564693 B CN 102564693B
- Authority
- CN
- China
- Prior art keywords
- hole
- erecting frame
- standard quality
- quality piece
- high precision
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a high-precision suspension positioning structure and a method thereof. The positioning structure preferably comprises: an installation rack (1), three positioning columns (2), a standard mass block (3) and an installation disc (4). The positioning method preferably comprises the following steps that: a circular hole is arranged at a center of the installation rack (1); the three positioning columns (2) are uniformly distributed around the centre circular hole of the installation rack (1); the standard mass block (3) are made into a cylinder shape with a flange and the standard mass block can pass through the circular hole of the installation rack (1) so as to connect with the installation disc (4) through a thread; the installation disc (4) is provided with three tapered blind holes which are cooperated with the three positioning columns (2). According to the invention, through improving the structure of a suspension mode, methods of three point positioning and tapered automatic centering are used. In a traditional suspension mode, the standard mass block can be interfered by an external force and the positioning is difficult to perform. By using the method and structure of the invention, the above problems can be solved. Limitation of a dynamic calibration device suspension mode of a force transducer can be broken. Simultaneously, the suspension structure is simple, operation is convenient and cost is low.
Description
Technical field
The present invention be more particularly directed to a kind of suspension location structure and method of power sensor dynamic characteristic caliberating device.
Background technology
Dynamic force caliberating device is mainly used in the dynamic property of power sensor and demarcates.Because impact, Rig up error, overload and the transportation of environment for use and the improper meeting of storage cause the change of power sensor characteristic, the sensibility in practice of power sensor and its nominal value produce difference.In kinetic measurement, the measuring error of power sensor is the several times of acceleration transducer normally, are to guarantee measuring accuracy, and power sensor must carry out dynamic calibration, and require in its dynamic calibration process error as far as possible little.Because the absolute magnitude of power directly obtains very difficult, and the absolute magnitude of acceleration can comparatively accurately and easily measure by laser vibration measurer or acceleration of gravity, so, it is basis by measuring acceleration mostly that the dynamic perfromance of power sensor is demarcated, and recycling Newton second law is carried out indirectly.Main error source in this link has: standard error, voltage signal sampling error, standard quality error, installation stochastic error etc., wherein the positioning precision of dynamic calibration apparatus and the damping because of location generation are vital on the impact of dynamic calibration precision.
Power sensor dynamic calibration apparatus conventionally adopts to have and hangs and without hanging two kinds of mounting meanss in the market.Without hanging installation, be to be directly pressed on vibrator after standard quality piece is connected with sensor, be generally applicable to the power sensor dynamic calibration compared with small-range.Consult Fig. 1 a-1b, hang that to install be that fine rule or soft rubber rope with long hung standard quality piece, make the central axis of standard quality piece and power sensor and exciting force application point point-blank.Because be subject to hanging pulling force or the vibration of cord, the consistance of this mounting means is poor, precision is low, its main cause has 2 points: the fine rule rope that 1) hangs standard quality piece can make mass produce deflection, cause very big difficulty to the centering of vibrator, and vibrator push rod has been applied to extra deflecting torque; 2) timing signal, fine rule rope inevitably produces constraint to the motion of mass, and fine rule rope can follow mass generation thermal agitation, has largely affected measuring accuracy.In addition, for avoiding the problem of above-mentioned 2, also can directly add guiding mechanism to standard quality piece, consult Fig. 1 c, but the energy that this locator meams frictional damping consumes is uncontrollable, directly affect the repeatability of rating test.
Summary of the invention
The object of the invention is to propose a kind of high precision and hang location structure and method, it can make the dynamic calibration of capable sensor more accurate with minimum manufacturing cost and use cost, reliably, thereby overcomes deficiency of the prior art.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of high precision hangs localization method, it is characterized in that, the method is: at an erecting frame center, offer a through hole, the one standard quality piece that can vertically move freely is coaxially set in this through hole again, and this standard quality piece and the mounting disc that is arranged on this erecting frame top are rigidly connected, meanwhile, on erecting frame upper surface, around this through hole, be symmetrical arranged supporting device, mounting disc is held up the level of, thereby standard quality piece is suspended on this erecting frame.
A kind of high precision hangs location structure, comprise an erecting frame, a through hole is offered at described erecting frame center, the one standard quality piece that can vertically move freely is coaxially set in described through hole, described standard quality piece is rigidly connected with the mounting disc that is arranged on this erecting frame top, and described erecting frame is also symmetrical arranged the supporting device for holding up the level of this mounting disc around this through hole on upper surface.
Preferably, described standard quality piece is cylindrical shape member, and described through hole is preferably circular hole, and described through-hole diameter is greater than standard quality piece external diameter, makes contactless between the two.
Particularly preferred, described standard quality piece is the flanged (FLGD) cylindrical shape member in one end, and described right cylinder external diameter is less than through-hole diameter, and flange outer diameter is greater than through-hole diameter.
As preferred version, described supporting device comprises: around this through hole, be symmetricly set on the plural reference column on erecting frame upper surface, and, be arranged on the plural blind hole coordinating with described reference column on mounting disc lower surface.
As more preferred scheme, described erecting frame upper surface is uniformly distributed three contour reference columns around this through hole, and each reference column upper end has bulb; Described blind hole is tapered blind hole.
Further, described supporting device is along being uniformly distributed with the circular trace of the concentric setting of this through hole, and this circular trace diameter is greater than this through-hole diameter, but is less than mounting disc external diameter.
Described standard quality piece upper end can be fixedly connected with by screwing tight structure with mounting disc.
As a kind of preferred embodiment, the present invention is when application, can first reference column be installed by desired location, and reliably locking, the center hole through erecting frame by standard quality piece again, be connected firmly with mounting disc, three tapered blind hole of mounting disc lower surface are aimed to placement with three reference columns.
In the present invention because gap between the center hole of erecting frame and standard quality piece is enough large, contactless between standard quality piece and erecting frame, do not produce friction force, standard quality piece is located by the bulb on three tapered blind hole that arrange in the mounting disc being attached thereto and three reference columns.Determine a face at 3, and the locator meams of taper and bulb there is automatic centering function, good positioning consistency, accuracy is high, the positioning precision of standard quality piece is easy to guarantee, thereby it is low to have solved the precision that existing suspension mounting means exists, the problems such as poor repeatability.
Therefore, compared with prior art, the invention has the advantages that: by the structure to hang, improve, particularly adopt the method for three-point fix and taper automatic centering, overcome traditional hang Plays mass and be subject to the problem of External force interference, location difficulty, broken the limitation of power sensor dynamic calibration apparatus hang simultaneously, simultaneously, apparatus of the present invention are simple in structure, easy to operate, with low cost.
Accompanying drawing explanation
Fig. 1 a-1c is respectively the location structure schematic diagram of existing power sensor dynamic calibration apparatus;
Fig. 2 is the location structure schematic diagram of power sensor dynamic calibration apparatus in a preferred embodiment of the present invention;
Fig. 3 is one of application state schematic diagram of a preferred embodiment of the present invention;
Fig. 4 be a preferred embodiment of the present invention application state schematic diagram two;
In figure, each assembly and Reference numeral thereof are respectively: 1, erecting frame; 2, standard quality piece; 3, reference column; 4, mounting disc; 5, standard acceler; 6, power sensor to be calibrated; 7, vibrator; 8, support; 9, guide piece; 10, hoisting gear; 11, anvil block; 12, cotton rope.
Embodiment
Below in conjunction with accompanying drawing and a preferred embodiment, technical scheme of the present invention is described further.
Consult Fig. 2, the high precision of the present embodiment hangs location structure and comprises an erecting frame 1, standard quality piece 2, three reference columns 3 and mounting discs 4.Circular hole is opened at described erecting frame 1 center, and three reference columns 2 are distributed on circular, and standard quality piece 3 is made flanged (FLGD) cylindrical shape, can from the circular hole of erecting frame 1, pass, by screw thread, be connected with mounting disc 4, in mounting disc 4, open three tapered blind hole, coordinate with three reference columns 2.
Consult Fig. 3, in the present embodiment, erecting frame 1 is fixed on support 8, exciting force is provided by vibrator 7, and standard acceler 5 is fixed on standard quality piece 2 upper ends, and power sensor 6 to be calibrated is fixed on standard quality piece 2 lower ends (or piston head end of vibrator 7).During rating test, the piston of vibrator 7 moves upward, and clashes into standard quality piece 2, and standard acceler 5 and power sensor 6 picked up signal to be calibrated, be transferred to respectively data analysis system.By newton's second theorem, be F=ma, the acceleration signal that only standard acceler 5 need be obtained and the quality of standard quality piece 2 multiply each other, the result obtaining and power sensor 6 to be calibrated obtain force signal contrast, to determine the dynamic characteristic parameter of power sensor 6 to be calibrated, complete rating test one time.
Consult Fig. 4, in the present embodiment, erecting frame 1 both sides install guide piece 9 additional, and erecting frame 1 can slide at vertical direction with the standard quality piece 2 hanging on it.During rating test, erecting frame 1 rises to setting height by hoisting gear 10 and discharges, erecting frame 1 slides along the guide piece 9 of both sides, standard quality piece 2 clashes into anvil block 11, be arranged on standard acceler 5 and power sensor 6 picked up signal to be calibrated on standard quality piece 2, be transferred to respectively data analysis system.By newton's second theorem, be F=ma, the acceleration signal that only standard acceler 5 need be obtained and the quality of standard quality piece 2 multiply each other, and the result obtaining and power sensor 6 to be calibrated obtain force signal contrast, to determine the dynamic characteristic parameter of sensor 6 to be calibrated, complete rating test one time.
It should be noted that, these are only that of the present invention one preferably implements sample, those skilled in the art are via the present invention's enlightenment, also can expect all kinds of supporting devices that adopt this area to commonly see, as reference column described in this embodiment of replacements such as the concentric continuous or discrete projective structure arranging of aforementioned erecting frame central through hole and blind hole coordinate the supporting device of formation, and realize close function with it, but slightly poor effect; Same, those skilled in the art also can want that the various schemes of commonly seeing to this area are rigidly connected standard quality piece and mounting disc.
Therefore, above preferred embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, has done various conversion or modification, all belongs to category of the present invention.
Claims (8)
1. a high precision hangs localization method, it is characterized in that, the method is: at an erecting frame (1) center, offer a through hole, the one standard quality piece (2) that can vertically move freely is coaxially set in this through hole again, and this standard quality piece (2) and the mounting disc (4) that is arranged on this erecting frame (1) top are rigidly connected, simultaneously, on erecting frame (1) upper surface, around this through hole, be symmetrical arranged supporting device, mounting disc (4) is held up the level of, thereby standard quality piece (2) is suspended on this erecting frame (1).
2. a high precision hangs location structure, it is characterized in that, it comprises an erecting frame (1), a through hole is offered at described erecting frame (1) center, the one standard quality piece (2) that can vertically move freely is coaxially set in described through hole, described standard quality piece (2) is rigidly connected with the mounting disc (4) that is arranged on this erecting frame (1) top, and described erecting frame (1) is also symmetrical arranged the supporting device for holding up the level of this mounting disc around this through hole on upper surface.
3. high precision according to claim 2 hangs location structure, it is characterized in that, described standard quality piece (2) is cylindrical shape member, and described through-hole diameter is greater than standard quality piece (2) external diameter.
4. according to high precision described in claim 2 or 3, hang location structure, it is characterized in that, described standard quality piece (2) is the flanged (FLGD) cylindrical shape member in one end, and described right cylinder external diameter is less than through-hole diameter, and flange outer diameter is greater than through-hole diameter.
5. high precision according to claim 2 hangs location structure, it is characterized in that, described supporting device comprises: around this through hole, be symmetricly set on the plural reference column (3) on erecting frame (1) upper surface, and, be arranged on the plural blind hole coordinating with described reference column (3) on mounting disc (4) lower surface.
6. high precision according to claim 5 hangs location structure, it is characterized in that, described erecting frame (1) upper surface is uniformly distributed three contour reference columns (3) around this through hole, and each reference column (3) upper end has bulb; Described blind hole is tapered blind hole.
7. high precision according to claim 2 hangs location structure, it is characterized in that, described supporting device is along being uniformly distributed with the circular trace of the concentric setting of this through hole, and this circular trace diameter is greater than this through-hole diameter, but is less than mounting disc (4) external diameter.
8. high precision according to claim 2 hangs location structure, it is characterized in that, described standard quality piece (2) upper end is fixedly connected with by screwing tight structure with mounting disc (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024364.4A CN102564693B (en) | 2012-02-03 | 2012-02-03 | High-precision suspension positioning structure and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210024364.4A CN102564693B (en) | 2012-02-03 | 2012-02-03 | High-precision suspension positioning structure and method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102564693A CN102564693A (en) | 2012-07-11 |
| CN102564693B true CN102564693B (en) | 2014-04-23 |
Family
ID=46410707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210024364.4A Active CN102564693B (en) | 2012-02-03 | 2012-02-03 | High-precision suspension positioning structure and method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102564693B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827573B (en) * | 2018-04-18 | 2020-09-29 | 北京卫星环境工程研究所 | Calibration method of micro-vibration interference source test verification system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2220638Y (en) * | 1994-12-28 | 1996-02-21 | 中国航空工业总公司第三○四研究所 | Device for making dynamic demarcation for force transducer |
| CN101769938A (en) * | 2010-01-21 | 2010-07-07 | 中国科学院力学研究所 | Direct pulling type acceleration transducer based on fiber Bragg grating |
| CN101776511A (en) * | 2010-01-29 | 2010-07-14 | 天津大学 | Micro/nano film impact mechanical performance drop hammer measuring device |
| CN102095585A (en) * | 2010-12-07 | 2011-06-15 | 山东昌润科技有限公司 | Total thrust measurement device of attitude control engine |
| CN102252803A (en) * | 2011-04-29 | 2011-11-23 | 中国计量科学研究院 | Dynamic force calibrating device by laser absolute method |
| CN202433148U (en) * | 2012-02-03 | 2012-09-12 | 苏州世力源科技有限公司 | High-precision suspension positioning structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8079276B2 (en) * | 2008-04-15 | 2011-12-20 | Spirit Aerosystems, Inc. | Dynamic calibration assembly for a friction stir welding machine |
-
2012
- 2012-02-03 CN CN201210024364.4A patent/CN102564693B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2220638Y (en) * | 1994-12-28 | 1996-02-21 | 中国航空工业总公司第三○四研究所 | Device for making dynamic demarcation for force transducer |
| CN101769938A (en) * | 2010-01-21 | 2010-07-07 | 中国科学院力学研究所 | Direct pulling type acceleration transducer based on fiber Bragg grating |
| CN101776511A (en) * | 2010-01-29 | 2010-07-14 | 天津大学 | Micro/nano film impact mechanical performance drop hammer measuring device |
| CN102095585A (en) * | 2010-12-07 | 2011-06-15 | 山东昌润科技有限公司 | Total thrust measurement device of attitude control engine |
| CN102252803A (en) * | 2011-04-29 | 2011-11-23 | 中国计量科学研究院 | Dynamic force calibrating device by laser absolute method |
| CN202433148U (en) * | 2012-02-03 | 2012-09-12 | 苏州世力源科技有限公司 | High-precision suspension positioning structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102564693A (en) | 2012-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102252626B (en) | Device for detecting effective inner diameter of pipeline | |
| CN102564692B (en) | Dynamic force calibrating structure | |
| CN101571441A (en) | Six-dimension force sensor calibration device with medium measurement range | |
| CN101571442A (en) | Calibration method for six-dimension force sensor calibration device with medium measurement range | |
| CN101319864A (en) | Plug gauge head pore diameter measurement mechanism | |
| CN104977148A (en) | Detecting device and detecting method for rotation center of angle-of-attack mechanism of wind tunnel test section | |
| CN102704915B (en) | A kind of checking table of directional tool and method of calibration | |
| CN102788545B (en) | Adjusting method of synchronizer ring gear depth measuring device | |
| CN102564693B (en) | High-precision suspension positioning structure and method thereof | |
| CN208333826U (en) | A kind of static submissive system safety testing device of industrial robot | |
| CN103969135A (en) | Pendulum bob impact experiment platform for mechanical property testing of metal material surface | |
| CN202442841U (en) | Dynamic force calibrating structure | |
| CN203838018U (en) | Metal material surface mechanical property testing pendulum bob impact experimental platform | |
| CN107796551B (en) | Indoor experiment platform of local wall stress relief method instrument and measurement method thereof | |
| CN202433148U (en) | High-precision suspension positioning structure | |
| CN106595952A (en) | Dynamic force sensor sensitivity calibration method and device | |
| CN205642730U (en) | Calibration arrangement for three fens force transducer | |
| CN207881655U (en) | A kind of integrated correction device | |
| CN102230787B (en) | Device for measuring depth of through hole | |
| CN104359618A (en) | Device for field calibration of dynamometer torquemeter of rotary mechanical test bed | |
| CN114993162A (en) | Device and method for measuring circumferential strain and axial stress of grouting material | |
| CN202024739U (en) | Through hole depth measuring device | |
| CN209083279U (en) | A kind of hole tester for check borehole data | |
| CN103528557B (en) | A kind of high-accuracy sphere diameter gauge | |
| CN105115661A (en) | Pulling force metering device for micro-force value measuring instrument |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |