CN202372138U - Impact sample gap projector - Google Patents
Impact sample gap projector Download PDFInfo
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- CN202372138U CN202372138U CN2011205397368U CN201120539736U CN202372138U CN 202372138 U CN202372138 U CN 202372138U CN 2011205397368 U CN2011205397368 U CN 2011205397368U CN 201120539736 U CN201120539736 U CN 201120539736U CN 202372138 U CN202372138 U CN 202372138U
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- projector
- breach
- standard
- impact sample
- sample gap
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Abstract
The utility model discloses an impact sample gap projector, which relates to optical detection equipment. The impact sample gap projector comprises a projecting screen provided with transparent glass, and is characterized in that: a standard gap pattern is drawn on the transparent glass through a photoetching technology. The impact sample gap projector has the beneficial effects of easiness for operating, intuitional examination and comparison, high efficiency, high correction accuracy, consistence with Chinese standard and European standard requirements and suitability for physics and chemistry lab occasions in departments such as metallurgy, boiler pressure vessels, automobiles and ships, metal conveying pipelines, engineering machinery, scientific research institutions and the like.
Description
Technical field
The utility model relates to a kind of optical detection apparatus, specifically is a kind of impact specimen breach projector.
Background technology
At present when the processing impact specimen; Mainly contain several kinds of means such as drawing breach, milling breach, cutting breach; The precision that these several kinds of job operations mainly are forming tools guarantees to prepare the precision of breach, and does not have suitable detection means to control the precision of sample break.If just be installed not or cutter is long-time uses when losing precision adding man-hour coupon spare, just will cause the sample that processes sub-standard and scrap.
The shortcoming of existing preparation sample precision control has:
Can not in time find when 1, tool wear loses precision, possibly cause large quantities of appearance of scrapping sample;
2, can't guarantee the machining precision of each sample, coupon results repeatability is relatively poor when causing test;
3, can't intuitively effectively judge the geometric accuracy of sample break.
So when doing impulse test, sample break shape processing is defective, all can cause the steep jumping of test findings, especially when the critical value of test, can causes product or scrap or qualified two kinds of diametrically opposite results.Qualified in order to guarantee to process sample break, the crudy check of breach is important quality control means.The breach check system of using at present all is to adopt optical projector to amplify inspection.
When using projector check notch geometry, the projected outline with its breach describes with tracing paper earlier, and then measures and analyze, and this is not only inconvenient but also be difficult to guarantee enough accuracy, also is difficult to meet the requirement of GB or Europe superscript.
Summary of the invention
The utility model is in order to remedy the deficiency of prior art, and a kind of easy to use, simple to operate, impact specimen breach projector that accuracy in detection is high is provided.
The utility model comprises the projection screen that is provided with clear glass, and its special character is: be provided with standard breach pattern through the photoetching technique drafting on the described clear glass.Standard breach pattern is to draw according to the standard that requires of GB GB/T229-2007 " the metal material summer is than pendulum impact test method " and ASTM E23-02a " metal material notched specimen standard impact test method ".
Described standard breach pattern is v-notch and U type breach.Wherein the summer than pendulum impact test in, GB/T229-2007 " the metal material summer is than pendulum impact test method " is that dark 2 ± 0.025mm, V-type opening angle are that 45 ° ± 2 °, root of notch radius are R0.25 ± 0.025mm to the requirement of v-notch; Requirement to U type breach is dark 2 ± 0.09mm, and the root of notch radius is R1 ± 0.07mm.Is that 2 ± 0.025mm, V-type opening angle are that 45 ° ± 1 °, root of notch radius are R0.25 ± 0.025mm at ASTM E23-02a " metal material notched specimen standard impact test method " to the requirement of v-notch.
The beneficial effect of the impact specimen breach projector of the utility model: simple to operate, inspection contrasts intuitively, efficient is high, calibration accuracy is high; Meet GB and Europe superscript requirement, be suitable for department's physical and chemical experiment chamber occasions such as vast metallurgy, boilers and pressure vessel, car and boat, metal conveyance conduit, engineering machinery and scientific research institutions and use.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the projection theory structural representation of optical projector among Fig. 1;
Among the figure: 1, fuselage, 2, objective table, 3, optical projection system, 4, object lens, 5, projection screen, 6, the v-notch pattern, 7, first reflective mirror, 8, second reflective mirror, the 9, the 3rd reflective mirror, 10, the check and correction plate.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described:
Accompanying drawing is a kind of specific embodiment of the present invention, and this embodiment comprises the projection screen 5 that is provided with clear glass, is provided with standard breach pattern through the photoetching technique drafting on the described clear glass.Described standard breach pattern is v-notch and U type breach.
The utility model in use; Sample to be detected is placed on the objective table 2, and in the optical projection system through corresponding setting with it, the light that is sent by halogen tungsten lamp shines on the measured object through condenser; The profile that through object lens 4 irradiated object is amplified again; Project on the projection screen 5 through the reflective of first, second, third reflective mirror, so just can directly compare, analyze the degree of accuracy of sample break intuitively with the v-notch pattern 6 on the check and correction plate 10; Thereby the qualified degree of the sample that can control machining gap, verification accuracy height, efficient are high, simple to operate, easy to use.Projection screen 5 amplifies 50 times according to standard shape and draws out the standard notch geometry, so that the detection of machining gap.In addition, this projector appearance profile, fibres for fabrics, biologic slice analysis, worker of also can be used for other components of machine projection of measuring check, instrument element and the semiconductor element of cutlery detects.
Claims (2)
1. an impact specimen breach projector comprises the projection screen (5) that is provided with clear glass, it is characterized in that: be provided with standard breach pattern through the photoetching technique drafting on the described clear glass.
2. impact specimen breach projector according to claim 1 is characterized in that: described standard breach pattern is v-notch and U type breach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205397368U CN202372138U (en) | 2011-12-21 | 2011-12-21 | Impact sample gap projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205397368U CN202372138U (en) | 2011-12-21 | 2011-12-21 | Impact sample gap projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372138U true CN202372138U (en) | 2012-08-08 |
Family
ID=46595835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205397368U Expired - Fee Related CN202372138U (en) | 2011-12-21 | 2011-12-21 | Impact sample gap projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604379A (en) * | 2013-10-29 | 2014-02-26 | 中国船舶重工集团公司第七二五研究所 | Fixing device for round-bar stretching sample with gap and measurement method for diameter at gap |
-
2011
- 2011-12-21 CN CN2011205397368U patent/CN202372138U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103604379A (en) * | 2013-10-29 | 2014-02-26 | 中国船舶重工集团公司第七二五研究所 | Fixing device for round-bar stretching sample with gap and measurement method for diameter at gap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20171221 |