CN105466688A - Method of avoiding missing sealing rings - Google Patents
Method of avoiding missing sealing rings Download PDFInfo
- Publication number
- CN105466688A CN105466688A CN201610042945.9A CN201610042945A CN105466688A CN 105466688 A CN105466688 A CN 105466688A CN 201610042945 A CN201610042945 A CN 201610042945A CN 105466688 A CN105466688 A CN 105466688A
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- bolt
- ring seal
- angle value
- controller
- bolts
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/22—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring angles or tapers; for testing the alignment of axes
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention provides a method of avoiding missing sealing rings, belonging to the automobile fitting sealing technical field. The method employs bolts for fixing, and the number of the bolts is at least two. The method comprises the steps of: setting the initial moment of each bolt, and successively screwing tight the bolts in an opposite angle screwing mode; recording the angle value of each bolt from beginning to screwing tight; comparing the angle values of bolts in a same screwing sequence under the condition of being provided with a sealing ring and the condition of not being provided with a sealing ring, and finding out bolts having an angle value difference greater than 30 DEG under the two conditions; setting the detection angle scope of an electric screwing gun; and utilizing the electric screwing gun after setting to fix the bolts in an opposite angle screwing mode, wherein the electric screwing gun is in connection with a controller, and the controller is in connection with an alarm device. The method has strong operationality, is almost free from artificial factor interferences, and can improve sealing ring installation efficiency, and provide a powerful guarantee for product quality.
Description
Technical field
The invention belongs to auto parts machinery technical field of sealing technology, be specifically related to a kind of method of anti-neglected loading O-ring seal.
Background technology
Vehicle Engine Structure is complicated, and staff is easy to when assembly and disassembly occur the work mistakes such as neglected loading O-ring seal.In existing production practices, often adopt the detection methods such as range estimation, optical sensor detection or follow-up leak test, wherein ocular estimate is only applicable to small serial production, for production in enormous quantities, efficiency comparison is low, and human eye there will be fatigue, and undetected probability can increase; Optical sensor detection method may lose efficacy for the unconspicuous O-ring seal that leaks outside, and caused flase drop, affected work efficiency; The method of follow-up leak test is owing to being that all products detect together, and undetected probability increases, and the risk that unacceptable product is mixed into also can increase.Application number be 201520161689.6 patent discloses a kind of device preventing engine neglected loading O-ring seal, comprise O-ring seal assembling shelf, O-ring seal assembling shelf are provided with the relative picking sensor in position, picking sensor is connected with mistake proofing control box jointly, and mistake proofing control box is connected with main control cabinet.This patent utilization picking sensor and O-ring seal are installed station and are interlocked, if do not taken, O-ring seal assembles engine, then the engine of O-ring seal installation station can not flow to next station, automatically to solve the problem of the easy neglected loading O-ring seal existed in engine assembly process.But in practical operation, often occur that artificial false sense answers the problem of picking sensor, the limited efficiency of anti-neglected loading O-ring seal.
Current electric tightening rifle is usually used in double thread pair and tightens, to ensure the precision of the screw-down torque of screw thread pair, to improve assembly precision, such as application number be 201320021293.2 patent discloses a kind of electric tightening rifle fail-safe system, this system can ensure that electric tightening rifle can only be tightened in right position or looser a bolt, and improves assembly precision.But need to explore for the neglected loading error-proofing technique carrying out O-ring seal with electric tightening rifle, and O-ring seal neglected loading can affect the sealing of device, make the hydraulic performance decline of the aspects such as the assembling of product and use.
Summary of the invention
Technical matters to be solved by this invention is, for the deficiencies in the prior art, provides a kind of method of anti-neglected loading O-ring seal, and this error-preventing method is effectively reliable, and interference from human factor is little, and false detection probability is low, and detection efficiency is high.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
A method for anti-neglected loading O-ring seal, adopt bolt to be fixed, the quantity of described bolt is at least 2, comprises the following steps:
Step S1, every initial moment pre-fixing bolt is set and tightens order in the controller, in the mode that diagonal angle is tightened, bolt is tightened one by one in order;
Step S2, be recorded in and O-ring seal be installed with each bolt in two kinds of situations of not installing O-ring seal from the initial angle value to tightening respectively;
Step S3, respectively contrast installation O-ring seal with O-ring seal two kinds of situations are not installed under, tighten the difference of the angle value of the identical bolt of order, find out the bolt that angle value difference is in above-mentioned two situations greater than 30 degree;
Step S4, find out according to step S3 be greater than the bolt of 30 degree from the initial angle value to tightening installing the situation lower angle value difference value of O-ring seal, the detection angles scope of electric tightening rifle is arranged;
Step S5: the mode that bolt is tightened with diagonal angle is fixed by the electric tightening rifle utilizing step S4 to be provided with, described electric tightening rifle is connected with controller, and described controller is connected with warning device.
Further, described controller is programmable logic controller (PLC).
Further, described electric tightening rifle adopts the type matched with described controller.
Further, the quantity of described bolt is 2 ~ 4.
Further, described warning device is hummer.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention is by foregoing, and propose a kind of effectively reliable, interference from human factor is little, and false detection probability is low, the method for the anti-neglected loading O-ring seal that detection efficiency is high, the method adopts bolt to be fixed by O-ring seal, first need set every pre-fix the initial moment of bolt and tighten order, record each bolt from the initial angle value to tightening, compare installing O-ring seal with the angle value tightening the identical bolt of order not installing O-ring seal, find out the bolt that angle value difference is greater than 30 degree, the detection angles scope of angle value to electric tightening rifle according to this bolt is arranged, the electric tightening rifle be provided with is utilized to tight a bolt and detect the angle of bolt, if detection angle angle value is arranging in scope or equal the endpoint value of set angle scope, then can not report to the police, electric tightening rifle works on, otherwise, then can trigger alarm device, and then report to the police, remind staff may there is neglected loading O-ring seal problem.
The method of the present invention's anti-neglected loading O-ring seal is obviously better than the detection methods such as existing range estimation, optical sensor detection and postorder leak test, workable, hardly by interference from human factor, improve the installation effectiveness of O-ring seal, for product quality provides more sound assurance.
Embodiment
In order to understand the present invention better, set forth content of the present invention below in conjunction with embodiment is clear further, but protection content of the present invention is not only confined to the following examples.
The invention provides a kind of method of anti-neglected loading O-ring seal, adopt bolt to be fixed, the quantity of bolt is at least 2, specifically comprises the following steps:
Step S1, arrange every initial moment pre-fixing bolt and tighten order in the controller, the mode of tightening with diagonal angle is in order by bolt tightening;
Step S2, be recorded in and O-ring seal be installed with each bolt in two kinds of situations of not installing O-ring seal from the initial angle value to tightening respectively;
Step S3, respectively contrast installation O-ring seal with O-ring seal two kinds of situations are not installed under, tighten the difference of the angle value of the identical bolt of order, find out angle value difference in above-mentioned two situations and be greater than the bolt that 30 degree of differences are greater than 30 degree;
Step S4, find out according to step S3 be greater than the bolt of 30 degree from the initial angle value to tightening installing the situation lower angle value difference value of O-ring seal, the detection angles scope of electric tightening rifle is arranged;
Step S5: the mode that bolt is tightened with diagonal angle is fixed by the electric tightening rifle utilizing step S4 to be provided with, and electric tightening rifle is connected with controller, and controller is connected with warning device.
In the present invention, controller adopts programmable logic controller (PLC); It is a kind of employing one class programmable memory, for its internally stored program, actuating logic computing, sequential control, regularly, counting and the user oriented instruction such as arithmetical operation, and control various types of machinery or production run by numeral or analog pattern input/output, be the general purpose controller of industrial stokehold.In the present invention, controller used thereby can be added up alarm times, according to assembling sum and alarm times, can counting yield, and make supvr can see the probability of misoperation, thus increase work efficiency targetedly.Controller has tally function, and the hold down gag corresponding to tightening fixture is connected, at every qualified rear counting of bolt tightening once, then do not count if any warning, until all bolt tightening or forced resetting remove warning, fixture just can unclamp, and enters tightening of next part.
In the present invention, electric tightening rifle adopts the type matched with described controller; Preferred employing Atlas AtlasETD, ETV, ETF or ETP series electric tightening spanner, preferably adopts AtlasQST series electric tightening axle.
In the present invention, can be 2,3,4 or 5 to the quantity of the bolt that O-ring seal is fixed, even more, be preferably 2 ~ 4.
In the present invention, hummer selected by warning device.This warning device can carry for controller, or is connected with controller outside; Prioritizing selection hummer, its low price, sound frequency is controlled, and programmed control is convenient.
In the present invention, detection angles scope is at least included in the angle value installed the situation lower angle value difference value of O-ring seal and be greater than the bolt of 30 degree, and is not included in the angle value that the situation lower angle value difference value of not installing O-ring seal is greater than the bolt of 30 degree.
In the present invention, initial moment refers to that bolt head end face arrives web member surface minimum moment used.
Embodiment 1
For C14T water pump complement, the method that O-ring seal illustrates the anti-neglected loading O-ring seal of the present invention is installed.
The method of the anti-neglected loading O-ring seal described by this embodiment, adopt bolt to be fixed, the quantity of bolt is 4, specifically comprises the following steps:
Step S1, the initial moment determining bolt by test are 1.8Nm, and arrange in the controller, bolt is tightened by the mode of tightening by diagonal angle one by one in order, and the speed of tightening is 130rpm;
Step S2, record each bolt from initial moment to angle value when finally tightening;
Under step S3, respectively contrast install O-ring seal and do not install O-ring seal two kinds of situations, tighten the angle value of the identical bolt of order, find out the bolt that angle value difference is greater than 30 degree, test is determined to install O-ring seal and do not install compared with O-ring seal, the angle value difference of the 1st bolt and the 2nd bolt tightening is greater than 30 degree, and is greater than the difference of other bolt;
Step S4, in the controller the detection angles scope of electric tightening rifle to be arranged: the detection angles that the detection angles of the 1st bolt is set to 70 ~ 100 degree, the 2nd bolts is set to 150 ~ 320 degree;
The electric tightening rifle that step S5, utilization are provided with is fixed bolt, in fixation procedure, the angle value of the angle value detected when electric tightening rifle and setting can be compared, after detection the 1st bolt is qualified by controller, electric tightening rifle will work on, and the 2nd bolt in like manner; Otherwise, then can trigger alarm device, and then report to the police, remind staff may there is neglected loading O-ring seal problem.
Embodiment 2
For wheel box blanking cover, the method that O-ring seal illustrates the anti-neglected loading O-ring seal of the present invention is installed.
The method of the anti-neglected loading O-ring seal described by this embodiment, adopt bolt to be fixed, the quantity of bolt is 3, specifically comprises the following steps:
Step S1, the initial moment determining bolt by test are 2.1Nm, and set controller, and bolt is tightened by the mode of tightening (in 3 bolts, two distances bolt is farthest considered as diagonal angle) by diagonal angle one by one in order, and the speed of tightening is 75rpm;
Step S2, record each bolt from initial moment to angle value when finally tightening;
Under step S3, respectively contrast install O-ring seal and do not install O-ring seal two kinds of situations, tighten the angle value of the identical bolt of order, find out the bolt that angle value difference is greater than 30 degree, test is determined to install O-ring seal and do not install compared with O-ring seal, the angle value difference of the 1st bolt and the 2nd bolt tightening is greater than 30 degree, and is greater than the difference of other bolt;
Step S4, the detection angles scope of electric tightening rifle to be arranged: the detection angles that the detection angles of the 1st bolt is set to 70 ~ 100 degree, the 2nd bolts is set to 150 ~ 320 degree;
The electric tightening rifle that step S5, utilization are provided with is fixed bolt, in fixation procedure, the angle value of the angle value detected when electric tightening rifle and setting can be compared, after detection the 1st bolt is qualified by controller, electric tightening rifle will work on, and the 2nd bolt in like manner; Otherwise, then can trigger alarm device, and then report to the police, remind staff may there is neglected loading O-ring seal problem.
Embodiment 3
For electron assistant pump E00013537, the method that O-ring seal illustrates the anti-neglected loading O-ring seal of the present invention is installed.
The method of the anti-neglected loading O-ring seal described by this embodiment, adopt screw to be fixed, the quantity of screw is 3, specifically comprises the following steps:
Step S1, the initial moment determining bolt by test are 0.3Nm, and set controller, and bolt is tightened by the mode of tightening (in 3 bolts, two distances bolt is farthest considered as diagonal angle) by diagonal angle one by one in order, and the speed of tightening is 50rpm;
Step S2, record each bolt from initial moment to angle value when finally tightening;
Under step S3, respectively contrast install O-ring seal and do not install O-ring seal two kinds of situations, tighten the angle value of the identical bolt of order, find out the bolt that angle value difference is greater than 30 degree, test is determined to install O-ring seal and do not install compared with O-ring seal, the angle value difference of the 1st bolt and the 2nd bolt tightening is greater than 30 degree, and is greater than the difference of other bolt;
Step S4, the detection angles scope of electric tightening rifle to be arranged: the detection angles that the detection angles of the 1st bolt is set to 360 ~ 400 degree, the 2nd bolts is set to 420 ~ 490 degree;
The electric tightening rifle that step S5, utilization are provided with is fixed bolt, in fixation procedure, the angle value of the angle value detected when electric tightening rifle and setting can be compared, after detection the 1st bolt is qualified by controller, electric tightening rifle will work on, and the 2nd bolt in like manner; Otherwise, then can trigger alarm device, and then report to the police, remind staff may there is neglected loading O-ring seal problem.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, other amendments that those of ordinary skill in the art make technical scheme of the present invention or equivalently to replace, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of right of the present invention.
Claims (5)
1. a method for anti-neglected loading O-ring seal, adopt bolt to be fixed, the quantity of described bolt is at least 2, it is characterized in that, comprises the following steps:
Step S1, every initial moment pre-fixing bolt is set and tightens order in the controller, in the mode that diagonal angle is tightened, bolt is tightened one by one in order;
Step S2, be recorded in and O-ring seal be installed with each bolt in two kinds of situations of not installing O-ring seal from the initial angle value to tightening respectively;
Step S3, respectively contrast installation O-ring seal with O-ring seal two kinds of situations are not installed under, tighten the difference of the angle value of the identical bolt of order, find out the bolt that angle value difference is in above-mentioned two situations greater than 30 degree;
Step S4, find out according to step S3 be greater than the bolt of 30 degree from the initial angle value to tightening installing the situation lower angle value difference value of O-ring seal, the detection angles scope of electric tightening rifle is arranged;
Step S5: the mode that bolt is tightened with diagonal angle is fixed by the electric tightening rifle utilizing step S4 to be provided with, described electric tightening rifle is connected with controller, and described controller is connected with warning device.
2. the method for anti-neglected loading O-ring seal as claimed in claim 1, is characterized in that: described controller is programmable logic controller (PLC).
3. the method for anti-neglected loading O-ring seal as claimed in claim 2, is characterized in that: described electric tightening rifle adopts the type matched with described controller.
4. the method for anti-neglected loading O-ring seal as claimed in claim 1, is characterized in that: the quantity of described bolt is 2 ~ 4.
5. the method for anti-neglected loading O-ring seal as claimed in claim 1, is characterized in that: described warning device is hummer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042945.9A CN105466688B (en) | 2016-01-22 | 2016-01-22 | A kind of method of anti-neglected loading sealing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610042945.9A CN105466688B (en) | 2016-01-22 | 2016-01-22 | A kind of method of anti-neglected loading sealing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105466688A true CN105466688A (en) | 2016-04-06 |
| CN105466688B CN105466688B (en) | 2018-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610042945.9A Active CN105466688B (en) | 2016-01-22 | 2016-01-22 | A kind of method of anti-neglected loading sealing ring |
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| Country | Link |
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Citations (5)
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|---|---|---|---|---|
| KR20090067270A (en) * | 2007-12-21 | 2009-06-25 | 한국항공우주연구원 | Pipe connecting unit for engine test apparatus and engine test apparatus having the same |
| CN102073068A (en) * | 2010-12-16 | 2011-05-25 | 焦作瑞赛尔盘式制动器有限公司 | Device for detecting assembly of sealing rings |
| CN202008333U (en) * | 2010-12-23 | 2011-10-12 | 北京德尔福万源发动机管理系统有限公司 | Check fixture for preventing neglected mounting or mistaken mounting of washer |
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2016
- 2016-01-22 CN CN201610042945.9A patent/CN105466688B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090067270A (en) * | 2007-12-21 | 2009-06-25 | 한국항공우주연구원 | Pipe connecting unit for engine test apparatus and engine test apparatus having the same |
| CN102073068A (en) * | 2010-12-16 | 2011-05-25 | 焦作瑞赛尔盘式制动器有限公司 | Device for detecting assembly of sealing rings |
| CN202008333U (en) * | 2010-12-23 | 2011-10-12 | 北京德尔福万源发动机管理系统有限公司 | Check fixture for preventing neglected mounting or mistaken mounting of washer |
| CN103017716A (en) * | 2012-11-30 | 2013-04-03 | 昆山三多乐电子有限公司 | Vehicle lamp dimming motor shell overall gap determination and leakage detection fixture |
| CN203045261U (en) * | 2013-01-16 | 2013-07-10 | 上海汽车集团股份有限公司 | Motor-driven tightening gun anti-error system |
Non-Patent Citations (5)
| Title |
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| 倪琼: "电动工具在装配防错生产中的应用", 《MC现代零部件》 * |
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| CN105466688B (en) | 2018-10-12 |
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