CN2491825Y - Indentation automatic measurer - Google Patents
Indentation automatic measurer Download PDFInfo
- Publication number
- CN2491825Y CN2491825Y CN 01250577 CN01250577U CN2491825Y CN 2491825 Y CN2491825 Y CN 2491825Y CN 01250577 CN01250577 CN 01250577 CN 01250577 U CN01250577 U CN 01250577U CN 2491825 Y CN2491825 Y CN 2491825Y
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- CN
- China
- Prior art keywords
- lower sleeve
- sleeve barrel
- top cover
- threaded
- rod
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a measuring technique of residual stress, in particular to an impression automatic sizing device used for measuring residual stress by the method of ballistic impression, which comprises a regulating device, an upper sleeve barrel, a lower sleeve barrel, a lighting device, a roof board, a pick-up device, wherein the lighting device which is constructed by arranging a set of paralleling luminescent diodes in a sheath is connected with the screw thread of the lower sleeve barrel by a fastening cover, the lower sleeve barrel is provided with the pick-up device which is arranged behind the luminescent diodes, one end of the lower sleeve barrel is axially provided with a directional slot which is arranged on the inner side of the upper sleeve barrel by a directional pin, the directional slot is movably connected with the directional pin, the roof board is equipped together with the screw thread of the upper sleeve barrel, the regulating device is through a hole on the center of the roof board and is arranged in a cavity of the upper sleeve barrel, and is connected with the screw thread of the lower sleeve barrel. The utility model has the advantages of excellent measuring quality, simple structure, and easy operation.
Description
Technical field
The utility model relates to the measuring technique of unrelieved stress, specifically a kind of impression self-operated measuring unit that is used for impact indentation method survey unrelieved stress.
Background technology
The method of measuring unrelieved stress at present mainly contains 3 kinds: full method for releasing, x-ray method, blind hole method.Can be divided into two classes, wherein: x-ray method belongs to the rerum natura law areas, be to utilize the material principle that rerum natura (grating constant) changes under stress to measure unrelieved stress, the advantage of these class methods is not damage measured workpiece in the mensuration process, belongs to harmless unrelieved stress and detects; Shortcoming is very big to the surface state dependence of material behavior and sample, thereby difficult assurance in actual detected, precision also is difficult to guarantee, thereby uses on-the-spot use less (portability of X-ray equipment is not enough, and is bigger than normal to the welded structure measuring error) in welded structure.Full method for releasing and blind hole are owned by France in the stress relief law areas, and full method for releasing is a kind of destructive method, by the very high measuring accuracy of whole releases acquisitions of stress; The blind hole method is utilize to bore a small blind hole unrelieved stress in the member is discharged, owing to adopt foil gauge as measuring sensitive element, therefore has higher measuring accuracy, and equipment also is easy to carry, but damages measured piece to a certain extent.It is a kind of brand-new stress measurement technology that indentation method is surveyed unrelieved stress, and its measuring principle is to utilize the Changing Pattern of the output strain after extra-stress field and primary stress field superpose to survey unrelieved stress.Impact indentation method is measured the unrelieved stress device has following components to constitute: compositions such as foil gauge, strainmeter, impression producing device, impression self-operated measuring unit and base, but correctly measure, the impact indentation measurement mechanism is one of key in this measuring method.In the prior art, impression is measured by general optical readings microscope and is finished, and by manually-operated, working strength is big, and the impression measurement result is influenced greatly by human factor, thereby causes the measuring accuracy of unrelieved stress not pass a test.
Summary of the invention
The utility model provides a kind of high in quality, simple in structure, easy to operate impression self-operated measuring unit of measuring.
To achieve these goals, the technical solution of the utility model is: mainly by regulating device, sleeve up and down, lighting device, top cover, camera head is formed, wherein: one group of light emitting diode in parallel is installed in the lighting device that constitutes in the sheath and is threaded with lower sleeve by fastening cover, the built-in camera head of lower sleeve, be positioned at the light emitting diode rear, be axially arranged with direction recess at lower sleeve one end, be installed in the upper bush inboard by the orientation pin, be slidingly connected with its orientation, one top cover and upper bush screw thread are installed together, described regulating device is passed the hole in the middle of the top cover, be installed in the cavity in the upper bush, and be threaded with lower sleeve;
Described regulating device is made up of adjusting screw(rod), adjusting cap, spring, adjusting screw(rod) is a tubular structure, built-in lead guard bar from camera head, one end outer wall is installed together by fastening bolt with the adjusting cap, the other end passes hole in the middle of the top cover and is installed in the cavity in the upper bush, and be threaded with lower sleeve, described adjusting screw(rod) middle part is provided with protruding locating ring, and described spring is installed on the adjusting screw(rod) between top cover and the locating ring; Described camera head is made up of camera lens, supporter, imageing sensor and lead guard bar, wherein: described supporter one end is threaded with camera lens, the other end is equipped with imageing sensor, from the lead guard bar of power lead through being connected of video signal cable, power lead and the light emitting diode of imageing sensor with the supporter contact to computer interface and power supply.
The utlity model has following advantage:
Compare with the artificial reading of available technology adopting optical readings microscope, the utility model can alleviate working strength, improve the total system measuring accuracy, and its error is easy to execute-in-place less than 0.01mm, satisfies request for utilization.In addition, its volume is little, simple to operate, measuring process helps Computer Automatic Recognition, processing automatically, and the stable image quality of formation can be under different measurement environment, and measured picture quality is consistent, and unmanned is error.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that embodiment of the utility model cooperates synoptic diagram with base.
Fig. 3 is the utility model STRUCTURE DECOMPOSITION figure.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
As shown in Figure 1, it is mainly by regulating device 1, sleeve 2 up and down, 3, lighting device 4, top cover 5, camera head 7 is formed, wherein: the lighting device 4 that one group of light emitting diode 41 in parallel is installed in 42 li formations of a sheath is threaded with lower sleeve 3 by fastening cover 8, lower sleeve 3 built-in camera heads 7, be positioned at light emitting diode 41 rears, be axially arranged with direction recess 31 at lower sleeve 3 one ends, be installed in upper bush 2 inboards by orientation pin 21, be slidingly connected with its orientation, one top cover 5 is installed together with upper bush 2 screw threads, described regulating device 1 is passed the hole in the middle of the top cover 5, be installed in the cavity in the upper bush 2, and be threaded with lower sleeve 3;
Described regulating device 1 is made up of adjusting screw(rod) 11, adjusting cap 12, spring 13, adjusting screw(rod) 11 is a tubular structure, built-in lead guard bar 74 from camera head 7, one end outer wall is installed together by fastening bolt 15 with adjusting cap 12, the other end passes holes in the middle of the top cover 5 and is installed in the cavity in the upper bush 2, and be threaded with lower sleeve 3, described adjusting screw(rod) 11 middle parts are provided with protruding locating ring 14, and described spring 13 is installed on the adjusting screw(rod) 11 between top cover 5 and the locating ring 14;
Described camera head 7 is made up of camera lens 71, supporter 72, imageing sensor 73 and lead guard bar 74, wherein: described supporter 72 1 ends are threaded with camera lens 71, the other end is equipped with imageing sensor 73, from the lead guard bar 74 of power lead 6 through being connected of video signal cable, power lead and the light emitting diode 41 of imageing sensor 73 with supporter 72 contacts to computer interface and power supply; Imageing sensor 73 adopts CMOS or CCD chip;
The utility model adopts and adds lighting source, and light emitting diode is selected short wavelength's monochromatic source (as green glow, blue light etc.) for use in the described lighting device 4; The minisize pick-up head that CCD or cmos image sensor are equipped with in employing carries out image capture, catches with computing machine picture catching card again, handles automatically; Optical magnification is 〉=1.5 times; Adopt the tight shot mode, focusing is by sleeve 2,3 mechanical whorls adjusting up and down.
During work: energized, the utility model is inserted base, and upper bush 2 is locked by artificial or base locking function, rotate adjusting screw(rod) 11 by release handle 12 then, regulate the distance of lower sleeve 3 and tested impression, focus.
Add man-hour carrying out parts, particularly camera and sleeve etc. must be noted machining precision to the part parts that accuracy of alignment has a direct impact, and guarantee the strict centering in assembling back; When carrying out the various piece assembling, note the relative position between each parts, to guarantee accuracy of alignment; Must cooperate closely between the utility model and the base, can only slide relatively, can not swing, with the accurate positioning of assurance impression.
Stick into row by the image of image-pickup device picked-up by picture catching and go into computing machine, discern automatically and measure by image processing software (for prior art) then.
The utility model has carried out the impression experiment with measuring in the laboratory, and carries out the experiments of measuring of test piece for welding unrelieved stress with this equipment, and the result shows, and the impression measuring accuracy satisfies design error fully and is no more than ± requirement of 0.01mm.
Claims (3)
1. impression self-operated measuring unit, it is characterized in that: mainly by regulating device (1), sleeve (2 up and down, 3), lighting device (4), top cover (5), camera head (7) is formed, wherein: the lighting device (4) that one group of light emitting diode (41) in parallel is installed in a sheath (42) lining formation is threaded with lower sleeve (3) by fastening cover (8), the built-in camera head of lower sleeve (3) (7), be positioned at light emitting diode (41) rear, be axially arranged with direction recess (31) at lower sleeve (3) one ends, be installed in upper bush (2) inboard by orientation pin (21), be slidingly connected with its orientation, one top cover (5) is installed together with upper bush (2) screw thread, described regulating device (1) is passed the hole in the middle of the top cover (5), be installed in the cavity in the upper bush (2), and be threaded with lower sleeve (3).
2. according to the described impression self-operated measuring unit of claim 1, it is characterized in that: described regulating device (1) is by adjusting screw(rod) (11), regulate cap (12), spring (13) is formed, adjusting screw(rod) (11) is a tubular structure, built-in lead guard bar (74) from camera head (7), one end outer wall is installed together by fastening bolt (15) with adjusting cap (12), the other end passes hole in the middle of the top cover (5) and is installed in the cavity in the upper bush (2), and be threaded with lower sleeve (3), described adjusting screw(rod) (11) middle part is provided with protruding locating ring (14), and described spring (13) is installed on the adjusting screw(rod) (11) between top cover (5) and the locating ring (14).
3. according to the described impression self-operated measuring unit of claim 1, it is characterized in that: described camera head (7) is made up of camera lens (71), supporter (72), imageing sensor (73) and lead guard bar (74), wherein: described supporter (72) one ends are threaded with camera lens (71), the other end is equipped with imageing sensor (73), from the lead guard bar (74) of power lead (6) through being connected of video signal cable, power lead and the light emitting diode (41) of imageing sensor (73) with supporter (72) contact to computer interface and power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250577 CN2491825Y (en) | 2001-09-05 | 2001-09-05 | Indentation automatic measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01250577 CN2491825Y (en) | 2001-09-05 | 2001-09-05 | Indentation automatic measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2491825Y true CN2491825Y (en) | 2002-05-15 |
Family
ID=33660703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01250577 Expired - Fee Related CN2491825Y (en) | 2001-09-05 | 2001-09-05 | Indentation automatic measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2491825Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159933A (en) * | 2008-09-15 | 2011-08-17 | 雷恩第一大学 | Continuous or instrumented indentation device with convex bearing surface and use thereof, particularly for metal sheet indentation |
-
2001
- 2001-09-05 CN CN 01250577 patent/CN2491825Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102159933A (en) * | 2008-09-15 | 2011-08-17 | 雷恩第一大学 | Continuous or instrumented indentation device with convex bearing surface and use thereof, particularly for metal sheet indentation |
| CN102159933B (en) * | 2008-09-15 | 2014-04-16 | 雷恩第一大学 | Continuous or instrumented indentation device with convex bearing surface and use thereof, particularly for metal sheet indentation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |