CN203011357U - Air-floating type detection holding apparatus - Google Patents
Air-floating type detection holding apparatus Download PDFInfo
- Publication number
- CN203011357U CN203011357U CN 201320005293 CN201320005293U CN203011357U CN 203011357 U CN203011357 U CN 203011357U CN 201320005293 CN201320005293 CN 201320005293 CN 201320005293 U CN201320005293 U CN 201320005293U CN 203011357 U CN203011357 U CN 203011357U
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Abstract
The utility model discloses an air-floating type detection holding apparatus, comprising a compressed air source, a pedestal and an air floatation piston. The compressed air source is connected with air purifying equipment and is communicated with the air channel in the pedestal through an air flow control valve and a pipeline; an air floatation piston is arranged in the cylinder on the pedestal, the air floatation piston moves up and down along the cylinder under the effect of compressed air, and the air floatation piston is suspended depending on compressed air to support the sheath part to be checked; and the top of the air floatation piston is a semi-circular housing, and when the top of the air floatation piston is contacted to the sheath part at any point, the support force to the sheath part is provided along the normal direction of the profile of the sheath part. The external diameter of the support bar of the air floatation piston is matched with the diameter of the feed hole on the pedestal, and support force transmitting and guiding effects are provided. The lower portion of the piston body of the air floatation piston is provided with an annular groove, four air ports are symmetrically provided in the groove to enable the gap between the piston body and the cylinder to be filled with compressed air, radial floating support is provided for the air floatation piston, and simultaneously, forced clamping is minimized.
Description
Technical field
The utility model relates to sheet metal part detection technique field, specifically, relates to a kind of holding unit of covering class piece test.
Background technology
In recent years, along with developing rapidly of photoelectric sense technology, infotech and computer technology, occurred with the various optical three-dimensional measurement technology of light as information carrier, comprise lidar measurement technology, laser scanner technique, laser tracking measurement technology, measuring accuracy and measuring speed obviously improve, for the measurement of aircraft wing, fuselage skin class part provides an effective way.But due to aircraft wing, the fuselage skin accessory size is large, rigidity is low, under the effect of self gravitation, significant elastic deformation can occur; When the applied optics 3-D technology, need holding unit reasonable in design, the compensation part obtains the profile of part under free state, for manufacturing process provides foundation due to the distortion of clamping force and self gravitation generation.
Disclose a kind of flexible detection device for aircraft skin in patent of invention 201010013650.1, this flexible detection device uses vacuum suction system and detects support and the location that clamp is realized part, and part is formed uniform support; Be characterized in just can conveniently carrying out the digitizing detection to the aircraft skin part through changing the detection clamp, improved the detection efficiency of skin part, shortened the production cycle of aircraft skin.Still can not satisfy the needs that aircraft skin detects but produce due to clamping force and self gravitation in compensation aspect the distortion that causes.
The utility model content
Be the deficiency of avoiding prior art to exist, overcome the problem that the skin part distortion that causes because clamping force is inhomogeneous in the conventional brace mensuration reduces measuring accuracy, the utility model proposes a kind of air-flotation type and detect holding unit.Purpose is by relying on some gas pistons that pressurized air suspends to support skin part on pedestal, have the degree of freedom of vertical direction due to air floating piston, can not forcing part to contact with fixture, the impact that when avoiding forcing to clamp, the part external form is brought.
The technical scheme that its technical matters that solves the utility model adopts is: comprise compressed air source, pedestal, air floating piston, guide hole, cylinder, support ring, air channel, compressed air source is connected with gas purifying equipment, is connected with the pore in air channel in pedestal by gas flow regulating valve door, pipeline; Pedestal is rectangular parallelepiped, the air channel is positioned at the bottom of pedestal, the some circular holes of the uniform arrangement of air channel end face, cylinder is fixedly mounted on end face top, air channel, the cylinder bottom communicates with air channel end face circular hole, air floating piston coordinates installation with cylinder body, air floating piston relies on pressurized air suspension support skin part to be checked;
Described cylinder chamber is shoulder hole, and epimere guide hole diameter is less than the hypomere diameter of cylinder, and support ring is between the bottom and air channel end face circular hole of cylinder body, and the external diameter of support ring is greater than the internal diameter of cylinder body, and the support ring diameter of bore is less than the diameter of piston body;
Described air floating piston comprises bulb, support bar, piston body, gas port, annular groove, support bar is the right cylinder of inner hollow, top bulb semicircular in shape, annular groove is arranged at the piston body bottom, have four gas ports with the axis symmetry in annular groove, air floating piston is radially consisted of float support, the support bar of air floating piston and guide hole clearance fit.
The shape size of each air floating piston is identical; Each cylinder measure-alike.
Described air channel is rectangle, and the length in air channel and width are less than length and the width of pedestal, and the height in air channel is 1/4th of base height.
Beneficial effect
The utility model air-flotation type detects holding unit, is comprised of compressed air source, pedestal and air floating piston three parts; Compressed air source is connected with gas purifying equipment, be connected with air channel in pedestal by gas flow regulating valve door, pipeline, in cylinder on pedestal, air floating piston is installed, air floating piston moves up and down along cylinder under compressed-air actuated effect, and air floating piston relies on pressurized air suspension support skin part to be checked; The top of air floating piston is semicircular shell, when contacting with any point of skin part, to the anchorage force of the covering normal direction along the covering external form.The support bar external diameter of air floating piston and the guide hole clearance fit on pedestal play the effect of transmitting anchorage force and guiding.Annular groove is arranged at the piston body bottom of air floating piston, and in groove, symmetry has four gas ports and makes pressure gas can be full of the gap of piston body and cylinder, to the radially formation float support of air floating piston, plays simultaneously and reduces the effect that clamps forced.
Description of drawings
Below in conjunction with drawings and embodiments, a kind of air-flotation type of the utility model being detected holding unit is described in further detail.
Fig. 1 is that the utility model air-flotation type detects the holding unit schematic diagram.
Fig. 2 is base body upper piston distribution schematic diagram.
Fig. 3 is the partial view of base body upper piston installment state.
Fig. 4 is the partial sectional view of base body.
Fig. 5 is the cut-open view of piston.
Fig. 6 is that the axle of piston is surveyed view.
In figure:
1. compressed air source 2. pedestal 3. air floating piston 4. covering 5. guide hole 6. cylinder 7. support ring 8. air channel 9. bulb 10. support bar 11. piston body 12. gas port 13. annular grooves to be checked
Embodiment
The present embodiment is a kind of air-flotation type check holding unit, is comprised of compressed air source 1, pedestal 2 and air floating piston 3 three parts; Compressed air source 1 provides for air floating piston 3 the required cleaning that suspends, and the pressurized air with specified pressure is connected with air channel 8 in pedestal by pipeline and adjusting gas flow control valve by air compressor and gas purifying equipment.Covering 4 to be checked is seated on the plane that some air floating piston support bars 10 tops of pedestal consist of, and starts compressed air source 1, regulates compressed air require, air floating piston 3 is floated and be in steady state (SS).Can begin to measure.
Consult Fig. 1-Fig. 4, the utility model air-flotation type detects holding unit and provides for air floating piston 3 required cleaning and the pressurized air that have specified pressure that suspends by compressed air source 1; Compressed air source 1 comprises air compressor, the gas purifying equipment that gas-holder and air pump consist of, and gas flow regulating valve door, wherein, air compressor is connected with gas purifying equipment by pipe switch, is connected with pedestal 2 interior air channel 8 by gas flow regulating valve door, pipeline.When installing, compressed air source 1 must guarantee to interfere with the detection of part and the placement of part.
Bottoms in pedestal 2 are provided with rectangular air channel 8, and cylinder is positioned at the top in air channel, and air channel 8 end faces are evenly equipped with some through holes and are communicated with the circular hole of each cylinder lower end respectively; Air floating piston 3 coordinates installation with cylinder body; Have air hole on pedestal 2 walls of the side in air channel 8, the diameter of this air hole determines according to guide pipeline, and air hole is connected by pipeline with compressed air source 1.
As Fig. 5, shown in Figure 6, air floating piston 3 comprises bulb 9, support bar 10, piston body 11, gas port 12, annular groove 13, support bar 10 is the right cylinder of inner hollow, top bulb 9 is semicircular shell, guide hole 5 clearance fit on external diameter and pedestal 2 play the effect of transmitting anchorage force and guiding; The external diameter of semicircular shell is identical with thickness with the external diameter of thickness and support bar 10, when making it to contact with any point of skin part, to the anchorage force of the covering normal direction along the covering external form.Annular groove 13 is arranged at piston body 11 bottoms, mode with the axis symmetry in annular groove 13 has four gas ports 12, gas port 12 makes pressure gas can be full of the gap of piston body 11 and cylinder body 6, radially formation float support to air floating piston 3, avoid producing friction with cylinder, played equally and reduced the effect of forcing clamping.
The course of work:
The utility model air-flotation type detects holding unit, and air floating piston is arranged in the cylinder of pedestal, under compressed-air actuated effect, moves up and down along cylinder, and the some air floating piston that suspend by pressurized air support skin part.Because vertically anchorage force on each air floating piston is identical, can not force part to contact with fixture, avoid because forcing to clamp the impact that the part external form is brought.The top of air floating piston is semicircular shell, makes when contacting with any point of skin part, to the anchorage force of the covering normal direction along the covering external form.The support bar of air floating piston is the right cylinder of inner hollow, and the guide hole clearance fit on external diameter and pedestal plays the effect of transmitting anchorage force and guiding.Annular groove is arranged at the piston body bottom of air floating piston, and in groove, symmetry has four gas ports and makes pressure gas can be full of the gap of piston body and cylinder, to the radially formation float support of air floating piston, plays simultaneously and reduces the effect that clamps forced.
During measurement, first skin part is placed on the plane of supporting bar top formation, starts compressed air source, regulate compressed air require, the air supporting cylinder is floated and be in steady state (SS).Then can begin to measure.
Claims (3)
1. an air-flotation type detects holding unit, it is characterized in that: comprise compressed air source, pedestal, air floating piston, guide hole, cylinder, support ring, air channel, compressed air source is connected with gas purifying equipment, is connected with the pore in air channel in pedestal by gas flow regulating valve door, pipeline; Pedestal is rectangular parallelepiped, the air channel is positioned at the bottom of pedestal, the some circular holes of the uniform arrangement of air channel end face, cylinder is fixedly mounted on end face top, air channel, the cylinder bottom communicates with air channel end face circular hole, air floating piston coordinates installation with cylinder body, air floating piston relies on pressurized air suspension support skin part to be checked;
Described cylinder chamber is shoulder hole, and epimere guide hole diameter is less than the hypomere diameter of cylinder, and support ring is between the bottom and air channel end face circular hole of cylinder body, and the external diameter of support ring is greater than the internal diameter of cylinder body, and the support ring diameter of bore is less than the diameter of piston body;
Described air floating piston comprises bulb, support bar, piston body, gas port, annular groove, support bar is the right cylinder of inner hollow, top bulb semicircular in shape, annular groove is arranged at the piston body bottom, have four gas ports with the axis symmetry in annular groove, air floating piston is radially consisted of float support, the support bar of air floating piston and guide hole clearance fit.
2. air-flotation type according to claim 1 detects holding unit, and it is characterized in that: the shape size of each air floating piston is identical; Each cylinder measure-alike.
3. air-flotation type according to claim 1 detects holding unit, and it is characterized in that: described air channel is rectangle, and the length in air channel and width are less than length and the width of pedestal, and the height in air channel is 1/4th of base height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005293 CN203011357U (en) | 2013-01-07 | 2013-01-07 | Air-floating type detection holding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320005293 CN203011357U (en) | 2013-01-07 | 2013-01-07 | Air-floating type detection holding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203011357U true CN203011357U (en) | 2013-06-19 |
Family
ID=48602946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320005293 Expired - Fee Related CN203011357U (en) | 2013-01-07 | 2013-01-07 | Air-floating type detection holding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203011357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123256A (en) * | 2013-01-07 | 2013-05-29 | 西北工业大学 | Air flotation type detection immobilization device |
| CN104708461A (en) * | 2015-03-03 | 2015-06-17 | 西北工业大学 | Simple fixing and clamping device of large-sized wallboard |
-
2013
- 2013-01-07 CN CN 201320005293 patent/CN203011357U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123256A (en) * | 2013-01-07 | 2013-05-29 | 西北工业大学 | Air flotation type detection immobilization device |
| CN104708461A (en) * | 2015-03-03 | 2015-06-17 | 西北工业大学 | Simple fixing and clamping device of large-sized wallboard |
| CN104708461B (en) * | 2015-03-03 | 2017-07-07 | 西北工业大学 | A kind of simple holding unit of large-scale wallboard |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20140107 |