CN101876530A - Fixing device for use in inspection of skin parts - Google Patents
Fixing device for use in inspection of skin parts Download PDFInfo
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- CN101876530A CN101876530A CN2009102153119A CN200910215311A CN101876530A CN 101876530 A CN101876530 A CN 101876530A CN 2009102153119 A CN2009102153119 A CN 2009102153119A CN 200910215311 A CN200910215311 A CN 200910215311A CN 101876530 A CN101876530 A CN 101876530A
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- inspection
- skin parts
- holding unit
- parts according
- fixing device
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Abstract
The invention discloses a fixing device for use in inspection of skin parts. The fixing device is characterized in that: magnetorheological fluid(2) placed in a magnetic field source is used as support medium; the skin parts are assembled under a liquid-state condition by utilizing the physical characteristics of the magnetorheological fluid(2) that can realize solid-liquid conversion under an action of medium-strength magnetic fields; and by changing the physical environment of the phase change materials, the uniform support of the magnetorheological fluid(2) in the liquid state is realized, so that the parts are not forced to be contacted with a clamp, the influences of the forced clamping on the external shape of the parts are avoided, the original fixing device is greatly simplified, and the accuracy and the reliability of the three-dimensional measurement shape of the skin parts are guaranteed. The fixing device also has the characteristics of instantly completing the phase change with the magnetorheological fluid(2) as the support medium, using a permanent magnetic disc(1) as the magnetic field source, not needing an external power supply, saving energy, along with convenient use.
Description
Technical field
The present invention relates to sheet metal part and detect holding unit, relate in particular to the holding unit of covering sheet metal components optical 3-dimensional check.
Background technology
Aircraft skin is the thin-walled sheet metal part that is enclosed in the outer band curved surface of airframe, and covering has the free form surface profile usually, and physical dimension is big, and rigidity is low.Checking the conventional method of the situation that meets of the profile of skin part and theoretical profile in the past is manufacturing inspection type frame, after on the check type frame covering being installed, uses clearance gauge to measure model in the check type frame and the gap between the covering; Perhaps covering is placed on the mould tire, with rapping method inspection applying situation between the two.The method of inspection need be made special-purpose frock, and effect and operating personnel's experience has sizable relation.Development along with three-dimensional detection technique, early stage three-dimensional measurement is mainly finished by three coordinate measuring machine, by gauge head pointwise contactant surface, the corresponding triaxial coordinate data of coordinate measuring machine record, this contact-type 3 D is measured, and precision is higher, but measuring speed is slow, because the skin part size is big, rigidity is low, therefore part requires testee to have certain rigidity because the effect of clamping force, self gravitation down significant elastic deformation takes place.In recent years, the various optical three-dimensional measurement technology of carrier have appearred transmitting as information with light, compare contact type measurement, measuring speed obviously improves, when applied optics three-dimensional measurement technology, and the method that generally adopts suspension hardware to measure, mainly be to use standard fixture to measure, at first make a rigidity standard fixture, the profile of anchor clamps is according to fixed range of profile biasing of part digital-to-analogue, but these anchor clamps do not comprise the face that part has; Measure the gap of part and anchor clamps then.Because standard fixture only contacts at the finite point place with part, and anchor clamps are rigidity, therefore measurement result also is subject to gravity, clamping point number and the inhomogeneity influence of clamping force, its influence degree is difficult to be quantized, the whole system more complicated, whole system is easy to generate and rocks in addition, influences the optical measurement accuracy.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of holding unit that is not subjected to gravity, clamps stress influence and simple and reliable inspection of skin parts.
For solving the problems of the technologies described above, the holding unit of a kind of inspection of skin parts of the present invention, use places the magnetic flow liquid of Magnetic Field Source as Supporting Media, described magnetic flow liquid places Rong Chizhong, Rong Chi is the shallow slot that is made of permeability magnetic material, Rong Chi is rectangular, bottom thickness is to keep the minimum thickness that holds pool structure intensity, Magnetic Field Source adopts permanent magnetic chuck, can change the intensity in magnetic field by switch, Rong Chi is placed in the effective range on the permanent magnetic chuck, surface coverage one deck elastic film of magnetic flow liquid in holding the pond, covering class part lies in a horizontal plane on the elastic film, and permanent magnetic chuck is placed on the platform, described platform bottom is equipped with 4 universal wheels, and described magnetic flow liquid is that 60% the carbonyl iron particles or the machine oil of phosphatization carbonyl iron particles and 40% evenly mix by percent by volume.
The present invention has following good effect than prior art.The holding unit of a kind of inspection of skin parts of the present invention, utilize magnetic flow liquid that the physical characteristics that liquid-solid two-phase changes can take place under the action of a magnetic field of medium tenacity, covering class part is installed under liquid condition, change the residing physical environment of phase change material then, be implemented in the solid-state support uniformly down of magnetic flow liquid.Part can not forced to contact with anchor clamps, has avoided forcing to clamp the influence that the part external form is brought, and has greatly simplified original holding unit, has guaranteed the accuracy and the reliability of covering class part optical three-dimensional measurement external form.Characteristics of the present invention also are to use magnetic flow liquid as Supporting Media, can finish phase transformation in moment, use permanent magnetic chuck as Magnetic Field Source, and dispense with outer connecting power has the saving energy, characteristics easy to use.
Description of drawings
Fig. 1 is the synoptic diagram of the holding unit of a kind of inspection of skin parts of the present invention.
1 permanent magnetic chuck, 2 magnetic flow liquids, 3 elastic films, 4 covering 5 platforms 6 to be checked hold the pond in the accompanying drawing.
Embodiment
The invention will be further described below in conjunction with specific embodiment, but therefore do not limit the present invention among the described practical range.
Fig. 1 is the synoptic diagram of the holding unit of a kind of inspection of skin parts of the present invention, comprise platform 5, permanent magnetic chuck 1 and Rong Chi 6, wherein: platform 5 uses metal solder to form, 4 universal wheels are arranged at the bottom, can move freely along all directions on ground, the top constitutes a platform 5 by metal plate, is used to place the appearance pond 6 of Magnetic Field Source and splendid attire magnetic flow liquid 2.Magnetic Field Source adopts the permanent magnetic chuck 1 that uses as jig, by pulling the intensity in the switch change magnetic field on the permanent magnetic chuck 1, realizes the phase transformation of magnetic flow liquid 2.Hold the rectangle shallow slot that pond 6 is made of permeability magnetic material, the bottom thickness of shallow slot is a minimum thickness of keeping structural strength, makes magnetic field obtain maximum operating distance.Hold in the pond 6 magnetic flow liquid 2 is housed, magnetic flow liquid 2 is that 60% the carbonyl iron particles or the machine oil of phosphatization carbonyl iron particles and 40% evenly mix by percent by volume.At surface coverage one deck elastic film 3 of magnetic flow liquid 2, prevent that magnetic flow liquid from polluting covering to be checked 4 surfaces.
During assembling, permanent magnetic chuck 1 is placed on the work car, and Rong Chi 6 is placed in the effective range of permanent magnetic chuck.During use, at first pull the switch of permanent magnetic chuck 1, make permanent magnetic chuck 1 be in the state of demagnetization, this moment, magnetic flow liquid 2 was in liquid state, covering 4 to be checked is lain in a horizontal plane on the elastic film 3, wait for part under the effect of gravity, complete equipilibrium, pull the switch of permanent magnetic chuck 1, permanent magnetic chuck 1 is magnetized, and magnetic flow liquid solidifies, and viscosity increased in moment, support covering 4 to be checked, can begin to measure.After measuring end, pull the switch of permanent magnetic chuck 1, make permanent magnetic chuck 1 demagnetization, the magnetic flow liquid viscosity reduces, and can reinstall other parts to be checked.
Claims (9)
1. the holding unit of an inspection of skin parts is characterized in that: use to place the magnetic flow liquid (2) of Magnetic Field Source as Supporting Media.
2. the holding unit of a kind of inspection of skin parts according to claim 1, it is characterized in that: described magnetic flow liquid (2) places Rong Chi (6), and Rong Chi (6) is the shallow slot that is made of permeability magnetic material.
3. the holding unit of a kind of inspection of skin parts according to claim 2, it is characterized in that: Rong Chi (6) is rectangular, and bottom thickness is to keep the minimum thickness that holds pool structure intensity.
4. the holding unit of a kind of inspection of skin parts according to claim 1 is characterized in that: Magnetic Field Source adopts permanent magnetic chuck (1), can change the intensity in magnetic field by switch.
5. according to the holding unit of claim 2 or 3 described a kind of inspection of skin parts, it is characterized in that: Rong Chi (6) is placed in the effective range on the permanent magnetic chuck (1).
6. the holding unit of a kind of inspection of skin parts according to claim 5, it is characterized in that: surface coverage one deck elastic film (3) of magnetic flow liquid (2) in Rong Chi (6), covering to be checked (4) lies in a horizontal plane in (3) on the elastic film.
7. the holding unit of a kind of inspection of skin parts according to claim 4, it is characterized in that: permanent magnetic chuck (1) is placed on the platform (5).
8. the holding unit of a kind of inspection of skin parts according to claim 7 is characterized in that: 4 universal wheels are installed bottom the described platform (5).
9. the holding unit of a kind of inspection of skin parts according to claim 1 is characterized in that: described magnetic flow liquid (2) is that 60% the carbonyl iron particles or the machine oil of phosphatization carbonyl iron particles and 40% evenly mix by percent by volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102153119A CN101876530A (en) | 2009-12-23 | 2009-12-23 | Fixing device for use in inspection of skin parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102153119A CN101876530A (en) | 2009-12-23 | 2009-12-23 | Fixing device for use in inspection of skin parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101876530A true CN101876530A (en) | 2010-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102153119A Pending CN101876530A (en) | 2009-12-23 | 2009-12-23 | Fixing device for use in inspection of skin parts |
Country Status (1)
| Country | Link |
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| CN (1) | CN101876530A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123253A (en) * | 2013-01-07 | 2013-05-29 | 西北工业大学 | Suspended detection holding device |
| CN103123278A (en) * | 2011-11-18 | 2013-05-29 | 中联重科股份有限公司 | Sensor mounting device |
| CN106881609A (en) * | 2017-03-01 | 2017-06-23 | 大连理工大学 | A kind of thin-walled flat board magnetic flow liquid flexible support method |
| CN109834482A (en) * | 2019-04-08 | 2019-06-04 | 济南大学 | A kind of shell class thin-walled parts processing method and device |
| CN111975420A (en) * | 2020-08-17 | 2020-11-24 | 奚欢 | Workpiece fixing device for industrial production machine tool |
| CN117470130A (en) * | 2023-12-28 | 2024-01-30 | 中国科学院长春光学精密机械与物理研究所 | Qualitative evaluation method for quality of tool marks on surface of magnetorheological polishing element |
-
2009
- 2009-12-23 CN CN2009102153119A patent/CN101876530A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123278A (en) * | 2011-11-18 | 2013-05-29 | 中联重科股份有限公司 | Sensor mounting device |
| CN103123278B (en) * | 2011-11-18 | 2016-04-06 | 中联重科股份有限公司 | Sensor mounting device |
| CN103123253A (en) * | 2013-01-07 | 2013-05-29 | 西北工业大学 | Suspended detection holding device |
| CN103123253B (en) * | 2013-01-07 | 2016-02-10 | 西北工业大学 | A kind of suspension type detects holding unit |
| CN106881609A (en) * | 2017-03-01 | 2017-06-23 | 大连理工大学 | A kind of thin-walled flat board magnetic flow liquid flexible support method |
| CN109834482A (en) * | 2019-04-08 | 2019-06-04 | 济南大学 | A kind of shell class thin-walled parts processing method and device |
| CN111975420A (en) * | 2020-08-17 | 2020-11-24 | 奚欢 | Workpiece fixing device for industrial production machine tool |
| CN117470130A (en) * | 2023-12-28 | 2024-01-30 | 中国科学院长春光学精密机械与物理研究所 | Qualitative evaluation method for quality of tool marks on surface of magnetorheological polishing element |
| CN117470130B (en) * | 2023-12-28 | 2024-03-01 | 中国科学院长春光学精密机械与物理研究所 | Qualitative evaluation method for quality of tool marks on surface of magnetorheological polishing element |
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| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20101103 |