CN103712989B - A kind of detection method of O type rubber ring open defect - Google Patents
A kind of detection method of O type rubber ring open defect Download PDFInfo
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- CN103712989B CN103712989B CN201310753011.2A CN201310753011A CN103712989B CN 103712989 B CN103712989 B CN 103712989B CN 201310753011 A CN201310753011 A CN 201310753011A CN 103712989 B CN103712989 B CN 103712989B
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- rubber ring
- type rubber
- steel wire
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- plastic plate
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Abstract
The invention discloses a kind of detection method of O type rubber ring open defect, belong to the detection field of O type rubber ring, it comprises the following steps: (1) condition prepares; (2) the O type rubber ring of inspection outward appearance is prepared; (3) by O type rubber ring in product box to be checked through on steel wire; (4) when workman detects, the two ends of hand-held steel wire stand in the centre position between two daylight lamps; (5) the O type rubber ring on steel wire is checked; 6) the qualified O type rubber ring be detected in step (5) is taped against on a plastic plate; (7) another sealing surface of O type rubber ring is checked.Method of the present invention, by controlling the illumination of daylight lamp, the orientation of daylight lamp and the color of plastic plate, improves visual effect when workman detects O type rubber ring, workman is avoided to occur visual fatigue situation, while raising the efficiency, also can effectively prevent outward appearance undetected, loss reduces greatly.
Description
Technical field
The invention belongs to the detection field of O type rubber ring, specifically, relate to a kind of detection method of O type rubber ring open defect.
Background technology
Rubber o-ring section structure is extremely simple, and sealing property is reliable, and simplicity of design is easy to process, installs and changes easily, be therefore used in various sealing occasion.
Rubber o-ring can produce various appearances defect in process of production, listed by national standard " GB/T3452.2-2007: hydropneumatic O shape rubber ring presentation quality inspection specification ": dislocation, mispairing, combination overlap, back flow, excessively deburring, starved and indenture, current mark etc., in later stage inspection, mostly be artificial visual check, but artificial visual check always produces missed detection risk.Although existing O type circle outward appearance automatic detection instrument now, it is to small open defect, as little indenture, current mark, still cannot detect, and still needs to increase artificial visual check operation.Generally, artificial visual check, does not have fixing checking procedure, arbitrarily, easily more undetected.Therefore, good O type circle visual testing method is just aobvious very important.And this wisp of long-time detection rubber o-ring, eyes can produce dizzy sensation, have a strong impact on the judgement of people, produce serious visual fatigue, easily damage is caused to the eyes of workman, also can cause a lot undetected simultaneously, affect product quality, also affect the quality assessment of client to Products, lose the chance of Develop new product, bring harmful effect to the image of enterprise.And existing Research Emphasis is all material, the mechanical property of paying close attention to rubber ring, and for open defect, because research staff thinks can pass through artificial visually examine, so seldom there is scientific research personnel to go to pay close attention to how to detect open defect, especially scientific research personnel goes personal experience to detect at expense a large amount of time of really not deflorating, the misery detecting workman cannot be understood, cause the progress so for many years visual testing of O type rubber ring also not being had to essence.So exigence provides a kind of special detection method for O type rubber ring visual testing method of system now, not only will improve detection efficiency, main is improve visual effect, solves the visual fatigue problem that workman produces in long-term detection.
And much detect now workman to improve visual fatigue; oneself take relevant medicine all specially to treat visual fatigue; so the Research Emphasis of scientific research personnel has been also placed in the asthenopic medicine of the new treatment of research and development; such as Chinese publication number: 102949523A; publication date on March 6th, 2013; disclose a kind of pharmaceutical composition for alleviating asthenopia and capsule preparation method thereof thereof, the composition that this pharmaceutical composition contains and weight proportion thereof are: cassia seed 25 parts, chrysanthemum 20 parts, the fruit of Chinese wolfberry 15 parts, the fruit of medicinal cornel 20 parts, procyanidin 10 parts, taurine 10 parts.The pharmaceutical composition expection of this invention can reach effect of alleviating asthenopia, with cassia seed, chrysanthemum, the fruit of Chinese wolfberry, the fruit of medicinal cornel, procyanidin, taurine for primary raw material, adopts scientific and reasonable production technology to process.Although the preparation method of the drug regimen of this invention is simple, conventional equipment just can have been prepared.But it is good that old maxim is said; medicine three points of poison; workman can not be allowed every day to rely on medicine to carry out alleviating asthenopia; topmostly detection mode will be improved; avoid asthenopic generation, so just do not have how to treat asthenopic problem, this is also from the viewpoint of protection inspection workman's; so should solve at all be how to prevent produce visual fatigue, this is only the research emphasis of scientific research personnel.
Summary of the invention
1. the problem that will solve
For prior art, O type rubber ring open defect is detected, easily there is visual fatigue in workman, also undetected problem is easily there is during detection, the invention provides a kind of detection method of O type rubber ring open defect, it detects the open defect of O type rubber ring by simple method, detects accurately, appearance can be avoided undetected, most importantly can reduce or even avoid asthenopic generation.
2. technical scheme
In order to solve the problem, the technical solution adopted in the present invention is as follows:
A detection method for O type rubber ring open defect, the steps include:
(1) condition prepares, and install two parallel daylight lamps, the illumination F of daylight lamp is 6300-7400lux, and the distance between two daylight lamps is S; Prepare two plastic plates, one is dull and stereotyped, and a middle part band is fluted, and the color of plastic plate utilizes CIE1976 color system to represent: L* is 71 to 79, a* be-30 to-15, b* is 45 to 75;
(2) prepare the O type rubber ring of inspection outward appearance, be put in product box to be checked;
(3) by O type rubber ring in product box to be checked through diameter be 1.98mm, length is on the steel wire of L, L equals 0.235 times of workman's height;
(4) when workman detects, the two ends of hand-held steel wire stand in the centre position between two daylight lamps, and daylight lamp is vertical with steel wire, and the vertical range of daylight lamp distance steel wire is H; Described
wherein F' is reference light photograph, and it is A hour that workman prepares stream time, then F' size is 6500-100(A-5) lux, D be reference range, the size of D is 1m; During practical operation, first according to the height of workman and the parameter such as height of height determination daylight lamp normally picking up steel wire, not allow workman adjust the height of steel wire according to light;
(5) check the O type rubber ring on steel wire, O type rubber ring is toggled it to the other end from one end of steel wire one by one, in the process of stirring, according to standard, unacceptable product is chosen;
(6) the qualified O type rubber ring be detected in step (5) is taped against on a plastic plate, detects on O type seal with elastometic washer face whether defectiveness, pick out defective O type rubber ring;
(7) cover on the O type rubber ring in step (6) with other one piece of middle part reeded plastic plate of band, then use hand two pieces of plastic plates, upset, take off one piece of plastic plate above, check another sealing surface of O type rubber ring, pick out defective O type rubber ring, remaining is certified products.
Preferably, in described step (1), the illumination F of daylight lamp is 6800lux; The color of plastic plate utilizes CIE1976 color system to represent: L* is 75, a* be-23, b* is 60.
Preferably, the physical dimension of the plastic plate in described step (1) is long 300mm, wide 260mm, thick 3mm.
Preferably, guarantee that the area of O type rubber ring (3) accounts for 2/3 of cardboard area when O type rubber ring is taped against on a plastic plate in described step (6).Also can be less than this area, area is little, lowers efficiency, excessive, can cause when workman's arm fatigue and range estimation and cannot once see entirely all product defectses, lower efficiency on the contrary.
3. beneficial effect
Compared to prior art, beneficial effect of the present invention is:
(1) the present invention is by controlling the illumination of daylight lamp, the orientation of daylight lamp and the color of plastic plate, and improve visual effect when workman detects O type rubber ring, protection eyes, avoid workman to occur visual fatigue situation, fundamentally solve visual fatigue problem;
(2) the present invention is 0.235 times of workman's height from the length of the angle determination steel wire of ergonomics, this is the size the most applicable workman determined with reference to the various parameter of the human body such as the brachium of people and the ratio of height, have more rationality, allow workman feel comfortable while also improve checkability;
(3) concrete setting of the present invention will with reference to the workman's operating time set in advance, if short term detection, then F' is larger, the result brought be daylight lamp distance steel wire vertical range H and two daylight lamp between distance S diminish, luminous flux strengthens, the detection efficiency of workman can be improved, and when required for workman during longevity of service, then need the brightness reducing light, although efficiency when such work efficiency does not have the distance S between vertical range H and two daylight lamp of daylight lamp distance steel wire to become large is high, but when working long hours, also visual fatigue can not be caused, do not reduce on the basis of work efficiency in the overall situation, the eyesight of protection workman,
(4) detection method is simple, efficient, can disposable detection multiple O type rubber ring, and under the color of special light and base plate sets off, defect is more directly perceived; In view of it can check all of O type rubber ring, while raising the efficiency, also can effectively prevent outward appearance undetected, loss reduces greatly;
(5) auxiliary mould cost of the present invention low and be easy to obtain, simple to operate.
Accompanying drawing explanation
Fig. 1 is the O type rubber ring structural representation of outward appearance to be tested;
Fig. 2 is daylight lamp of the present invention and iron wire position view;
Fig. 3 is the structural representation of the present invention's iron wire used;
Fig. 4 is the present invention's structural representation of middle part with fluted plastic plate used.
Embodiment
Describe the present invention below in conjunction with concrete accompanying drawing.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of detection method of O type rubber ring open defect, tests to the O type rubber ring of internal diameter a: the ∮ 11mm in Fig. 1, wire diameter b: ∮ 2.5mm, the steps include:
(1) condition prepares, and install two parallel daylight lamps 1, the light sent of daylight lamp 1 is white light, and the illumination F of daylight lamp 1 is 6800lux, and the distance between two daylight lamps 1 is S; Prepare two plastic plates, one is dull and stereotyped, and a middle part band is fluted, and the color of plastic plate utilizes CIE1976 color system to represent: L* is 75, a* be-23, b* is 60; The physical dimension of plastic plate is long 300mm, wide 260mm, thick 3mm;
(2) prepare the O type rubber ring 3 of inspection outward appearance, be put in product box to be checked;
(3) by O type rubber ring 3 in product box to be checked through diameter be 1.98mm, length is on the steel wire 2 of L, L equals 0.235 times of workman's height; Select 40 to check workman from certain rubber plant, be divided into two groups immediately, often organize 20, first group of height is 1.58-1.81m, adopts method of the present invention; Second group of method when allowing it adopt its originally work, workman wear O type rubber ring 3 length account for 1/2 of whole steel wire 2 length;
(4) when workman detects, the two ends of hand-held steel wire 2 stand in the centre position between two daylight lamps 1, and daylight lamp 1 is vertical with steel wire 2, as shown in Figure 2, because daylight lamp is vertical with steel wire in Fig. 2, so can only see one end of daylight lamp in Fig. 2; Daylight lamp 1 is H apart from the vertical range of steel wire 2; Described
wherein F' is reference light photograph, and it is A hour that workman prepares stream time, then F' size is 6500-100(A-5) lux, D be reference range, the size of D is 1m; In the present embodiment, A selects 8, H to be chosen as 1m;
(5) check the O type rubber ring 3 on steel wire 2, O type rubber ring 3 is toggled it to the other end from one end of steel wire 2 one by one, in the process of stirring, according to standard, unacceptable product is chosen;
(6) the qualified O type rubber ring 3 be detected in step (5) is taped against on a plastic plate, detects on O type rubber ring 3 sealing surface whether defectiveness, pick out defective O type rubber ring 3;
(7) cover on the O type rubber ring 3 in step (6) with other one piece of middle part reeded plastic plate of band, then hand is used two pieces of plastic plates, upset, take off one piece of plastic plate above, check another sealing surface of O type rubber ring 3, pick out defective O type rubber ring 3, remaining is certified products.
After the work of 8 hours, second group of workman occurs that eye acid in various degree waits visual fatigue situation, on average everyone quantity detecting O type rubber ring 3 is 3003, find during reinspection, add up to 440 undetected, on average everyone have 22 undetected, loss is 0.7%, in these 440, there are 263 to be the concavo-convex defect at die joint place, have 177 to be current mark on sealing surface; And have employed first group of the inventive method, on average everyone quantity detecting O type rubber ring 3 is 4216, find during reinspection, add up to 35 undetected, loss is 0.0415%, are all the current marks on sealing surface, most importantly in 20 workmans, one-man occurs that slight eye is puckery, to have a rest and just recovers normal after 10 minutes.Thus can find out, adopt method of the present invention, not only can improve checkability, and effectively can prevent the undetected of O type circle open defect, the visual fatigue situation of most crucial is workman is significantly improved.
Embodiment 2
With embodiment 1, difference is: the present embodiment detects the O type rubber ring of internal diameter a: ∮ 5.5mm wire diameter b: ∮ 1.5mm; The illumination F of daylight lamp 1 is 7400lux; The color of plastic plate utilizes CIE1976 color system to represent: L* is 71, a* be-15, b* is 45; H is chosen as 1.2m, and workman needs stream time A to equal 4.The method of the workman in embodiment 1 exchanged, namely second group adopts method of the present invention, first group of method of work adopting its original place factory.
After the work of 4 hours, the 16 people acid that goes out to lose face is had to wait visual fatigue situation in first group of workman, on average everyone quantity detecting O type rubber ring 3 is 1735, find during reinspection, add up to 207 undetected, on average everyone have 10.35 undetected, loss is 0.6%, in these 207, there are 153 to be the concavo-convex defect at die joint place, have 54 to be current mark on sealing surface; And have employed second group of the inventive method, on average everyone quantity detecting O type rubber ring 3 is 2634, find during reinspection, add up to 13 undetected, on average everyone have 0.65 undetected, loss is 0.025%, is all the current marks on sealing surface, and topmost situation is that in this group 20 workmans, visual fatigue appears in nobody.Thus can find out, adopt method of the present invention, not only can improve checkability, and effectively can prevent the undetected of O type circle open defect, the visual fatigue situation of most crucial is workman is significantly improved.There is phenomenon preferably be that what to adopt the present invention undetected is all current mark simultaneously, without the undetected situation because of concavo-convex defect, illustrating that the present invention is accurate especially to detecting concavo-convex defect.
Embodiment 3
With embodiment 1, difference is: the present embodiment detects the O type rubber ring of internal diameter a: ∮ 2mm wire diameter b: ∮ 1.5mm; The illumination F of daylight lamp 1 is 6300lux; The color of plastic plate utilizes CIE1976 color system to represent: L* is 79, a* be-30, b* is 75; H is chosen as 0.8m, and workman needs stream time A to equal 2.
After the work of 2 hours, the 2 people acid that goes out to lose face is had to wait visual fatigue situation in second group of workman, on average everyone quantity detecting O type rubber ring 3 is 937, find during reinspection, add up to 78 undetected, on average everyone have 3.9 undetected, loss is 0.4%, in these 78, there are 45 to be the concavo-convex defect at die joint place, have 33 to be current mark on sealing surface; And have employed first group of the inventive method, on average everyone quantity detecting O type rubber ring 3 is 1469, find during reinspection, add up to 3 undetected, on average everyone have 0.15 undetected, the situations such as loss is 0.01%, is all the current marks on sealing surface, and in topmost 20 workmans, visual fatigue or eye acid appear in nobody, eye is puckery.Thus can find out, adopt method of the present invention, not only can improve checkability, and effectively can prevent the undetected of O type circle open defect, the visual fatigue situation of most crucial is workman is significantly improved.
Claims (4)
1. a detection method for O type rubber ring open defect, the steps include:
(1) condition prepares, and install two parallel daylight lamps (1), the illumination F of daylight lamp (1) is 6300-7400lux, and the distance between two daylight lamps (1) is S; Prepare two plastic plates, one is dull and stereotyped, and a middle part band is fluted, and the color of plastic plate utilizes CIE1976 color system to represent: L* is 71 to 79, a* be-30 to-15, b* is 45 to 75;
(2) prepare the O type rubber ring (3) of inspection outward appearance, be put in product box to be checked;
(3) by O type rubber ring (3) in product box to be checked through diameter be 1.98mm, length is that on the steel wire (2) of L, L equals 0.235 times of workman's height;
(4) when workman detects, the two ends of hand-held steel wire (2) stand in the centre position between two daylight lamps (1), daylight lamp (1) is vertical with steel wire (2), and the vertical range of daylight lamp (1) distance steel wire (2) is H;
wherein F' is reference light photograph, and it is A hour that workman prepares stream time, then F' size is 6500-100 (A-5) lux, D is reference range, and the size of D is 1m;
(5) check the O type rubber ring (3) on steel wire (2), O type rubber ring (3) is toggled it to the other end from one end of steel wire (2) one by one, in the process of stirring, according to standard, unacceptable product is chosen;
(6) the qualified O type rubber ring (3) be detected in step (5) is taped against on a plastic plate, detects on O type rubber ring (3) sealing surface whether defectiveness, pick out defective O type rubber ring (3);
(7) be with reeded plastic plate to cover with other one piece of middle part does not have on defective O type rubber ring (3) in step (6), then hand is used two pieces of plastic plates, upset, take off one piece of plastic plate above, check another sealing surface of O type rubber ring (3), pick out defective O type rubber ring (3), remaining is certified products.
2. the detection method of a kind of O type rubber ring open defect according to claim 1, is characterized in that: in described step (1), the illumination F of daylight lamp (1) is 6800lux; The color of plastic plate utilizes CIE1976 color system to represent: L* is 75, a* be-23, b* is 60.
3. the detection method of a kind of O type rubber ring open defect according to claim 1, is characterized in that: the physical dimension of the plastic plate in described step (1) is long 300mm, wide 260mm, thick 3mm.
4. according to the detection method of a kind of O type rubber ring open defect in claim 1-3 described in any one, it is characterized in that: when O type rubber ring (3) is taped against on a plastic plate in described step (6), guarantee that the area of O type rubber ring (3) accounts for 2/3 of cardboard area.
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| CN201310753011.2A CN103712989B (en) | 2013-12-31 | 2013-12-31 | A kind of detection method of O type rubber ring open defect |
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| CN201310753011.2A CN103712989B (en) | 2013-12-31 | 2013-12-31 | A kind of detection method of O type rubber ring open defect |
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| CN103712989B true CN103712989B (en) | 2016-02-24 |
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Families Citing this family (2)
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| CN106932006A (en) * | 2017-04-12 | 2017-07-07 | 浙江硕和机器人科技有限公司 | A kind of product quality testing equipment based on machine vision |
| CN107990932A (en) * | 2017-12-15 | 2018-05-04 | 平湖市海特合金有限公司 | Leaf, tungsten point appearance test instrument |
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| JPH11242007A (en) * | 1998-02-26 | 1999-09-07 | Fujikura Rubber Ltd | Inspection device of o-ring |
| JP2005195332A (en) * | 2003-12-26 | 2005-07-21 | Kirin Techno-System Corp | Visual inspection apparatus of circular article |
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| CN103091755A (en) * | 2013-01-09 | 2013-05-08 | 芜湖爱瞳视光科技有限公司 | Eyesight-protecting nonopaque body and application thereof |
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