CN102494618A - Cable sheath tensile length detection apparatus - Google Patents
Cable sheath tensile length detection apparatus Download PDFInfo
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- CN102494618A CN102494618A CN2011104180616A CN201110418061A CN102494618A CN 102494618 A CN102494618 A CN 102494618A CN 2011104180616 A CN2011104180616 A CN 2011104180616A CN 201110418061 A CN201110418061 A CN 201110418061A CN 102494618 A CN102494618 A CN 102494618A
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Abstract
The invention discloses a cable sheath tensile length detection apparatus, which comprises a hardware part and a software part. The hardware part comprises a tensile machine and a motor, and is characterized by further comprising an industrial camera, a tripod, an industrial personal computer and a printer, wherein the industrial camera is arranged on the tripod and located on the front side of the tensile portion of the tension machine. The software part is mounted in the industrial personal computer and comprises a data acquisition module, a data processing module, a data display module and/or printing output module which are connected in sequence. The cable sheath tensile length detection apparatus can be used for completing automatic non-contact detection of tensile length of cable sheath test pieces.
Description
Technical field
The present invention relates to a kind of tensile elongation pick-up unit, particularly a kind of pick-up unit that carries out the tensile elongation test to cable cover(ing).
Background technology
In current production and life, electricity is closely bound up with people, and to various home cable electric wires, each link all be unable to do without electric wire from extra high voltage network, and the insulating sheath of cable is directly connected to the personal safety of electricity consumption.Electric wire is various in style; Wide application and demand are big, and domestic production producer is thousands of, and product quality is uneven; The fire or other security incident that cause because of the quality problems of electric wire happen occasionally, and therefore the detection to electric wire just seems particularly important.Cable cover(ing) mainly contains two measurement indexes: tensile strength and breaking elongation.The ultimate tensile stress of the tensile strength record that is tensile test specimen when rupturing.Breaking elongation is that sample is stretched to when rupturing the number percent of the marking path before the increment of marking path and the tensile sample.
Testing according to the testing requirements of concerned countries standard in the laboratory of domestic being engaged in " electric wire " examination and test of products at present, uses general routine " tension tester ", and for example experimental apparatus factory in Guangzhou produces XL-50A (100A), does tensile test.According to the testing requirements of national standard, tensile strength and two indexs of breaking elongation of reflection wire cable insulating layer material need be carried out 5 experiments, test for 5 times to get that numerical value compares judgement in intermediate value and the standard again.And tensile elongation is the basis of calculating electric wire and cable jacket tensile strength and two indexs of breaking elongation.The method of present domestic detection streamer sheath tensile elongation roughly can be divided into two kinds: method one; The manual measurement method before carrying out tension test, makes marks on tensile test specimen according to GB; Utilize puller system to stretch then; The artificial simultaneously length of using between the kind of calliper mark line is broken until test specimen, length between record mark line this moment.According to national standard, tensile test is 5 with test specimen at least, and manual measurement must be done five times like this, and the arrangement raw readings time is long, and efficient is low, and labour intensity is big, and the Human Error Rate is high; Method two utilizes conventional tension tester to accomplish the detection of tensile elongation automatically by sensor, and it adopts computer processing system; Can solve the personal error problem, but, adopt contact backguy sensor in the context of detection of tensile elongation; Can cause the congenital impression in the contact site, the breaking elongation that is not suitable for cable sheath material detects test, and puller system can only detect a test specimen at every turn; Can not accomplish the detection of 5 test specimens simultaneously, cause overall detection time long, efficient is low.
Summary of the invention
To the deficiency of prior art, the technical matters that the present invention solved is: a kind of cable cover(ing) tensile elongation pick-up unit is provided, and this pick-up unit need not manual intervention; Can accomplish the measurement of cable cover(ing) test specimen tensile elongation automatically, the contactless impression of sample in the testing process can realize that 5 experiment samples once are installed; Make tensile elongation simultaneously and detect test; And carry out the intelligent data analysis, and shortened test period, improved conventional efficient and accuracy of detection.
The technical scheme that the present invention solve the technical problem is: design a kind of cable cover(ing) tensile elongation pick-up unit; Comprise hardware components and software section; Hardware components comprises puller system and motor; It is characterized in that hardware components also comprises industrial camera, A-frame, industrial computer and printer, said industrial camera is positioned on the A-frame, and is positioned at the right opposite at puller system stretching position; Software section is installed in the industrial computer, comprises data acquisition module, data processing module and the data disaply moudle and/or the printout module that connect successively.
Compared with prior art; Beneficial effect of the present invention is: the method that the present invention adopts computer control system and machine vision technique to combine, accomplish the non-contact automatic detection of cable cover(ing) test specimen tensile elongation, and need not manual intervention; Labour intensity is low; Personal error is little, and check is efficient, and data are accurate; Testing process can not look like existing backguy sensor and cause impression in the contact site, can realize that sample under contactless situation, measures its tensile elongation, and calculate its breaking elongation automatically; The puller system anchor clamps are increased to 5 covers by a cover, can realize that 5 experiment samples once are installed, stretch simultaneously and detect, and carry out the intelligent data analysis, shortened the whole test time, improved efficient.
Description of drawings
Fig. 1 is the composition structural representation of a kind of embodiment of cable cover(ing) tensile elongation pick-up unit of the present invention;
Fig. 2 is the puller system basic machine structural representation of a kind of embodiment of cable cover(ing) tensile elongation pick-up unit of the present invention;
Fig. 3 is the computer programme flow diagram of a kind of embodiment of cable cover(ing) tensile elongation pick-up unit of the present invention;
Fig. 4 is the operation result photo figure of a kind of embodiment of cable cover(ing) tensile elongation pick-up unit of the present invention.
Embodiment
Further narrate the present invention below in conjunction with embodiment and accompanying drawing thereof, specific embodiment only is used to be described in detail the present invention, does not constitute the restriction to the application's claim.
The cable cover(ing) tensile elongation pick-up unit of the present invention's design (is called for short pick-up unit; Referring to Fig. 1-4) comprise hardware components and software section; Hardware components comprises puller system 1 and motor 6; It is characterized in that hardware components also comprises industrial camera 2, A-frame 3, industrial computer 4 and printer 5, said industrial camera 2 is positioned on the A-frame 3, and is positioned at the right opposite at puller system 1 stretching position; Industrial computer 4 is connected with industrial camera 2 through 1394 interfaces, and printer 5 is connected with industrial computer 4 through USB interface.
The puller system 1 of pick-up unit of the present invention is used for to the test specimen imposed load, accomplishes the stretching work of test specimen, is prior art, mainly comprises entablature 7, moved cross beam 8, column 9, ball-screw 10, workbench 11, anchor clamps 12 and gear case 13.The annexation of puller system 1 is following: entablature 7 links to each other through column 9 with workbench 11; Moved cross beam 8 links to each other with ball-screw 10, and gear case 13 1 ends are connected with motor 6, and the other end is connected with ball-screw 10; Driven gear case 13 rotates when motor 6 runnings; Gear case 13 drives ball-screw 10 runnings again, and 10 of ball-screws drive moved cross beam 8 and do vertical moving, to accomplish the action of tensile test specimen.
The software section of pick-up unit of the present invention is installed in the industrial computer 4; Comprise data acquisition module, data processing module, data disaply moudle and/or printout module; After the data collecting module collected data data are sent into data processing module and handle, the data after data processing module is handled are sent into data disaply moudle and/or printout module.Each module all realizes function corresponding, has formed a fairly perfect man-machine interactive platform.Data acquisition module is gathered the drawing process data in real time, and data processing module carries out processed to the information that collects, and is the key point of system, and data disaply moudle can show Test Information such as current tensile elongation, breaking elongation in real time.Make things convenient for the monitoring of testing crew to process of the test.Print module generates form with contents such as Test Information, test parameterss and prints.
The further characteristic of pick-up unit of the present invention is that said A-frame 3 is an adjustable-height type A-frame.In the application, this support can be regulated the height of industrial camera 2 according to the height of actual pull machine, so that the visual angle of camera 2 adheres to specification fully.
The further characteristic of pick-up unit of the present invention is that said anchor clamps 12 are configured to 5 covers.Existing 1 of puller system is joined anchor clamps 12 and is merely a cover.The anchor clamps of this pick-up unit are 5 covers, can realize once that the tensile elongation of 5 test specimens detects test, and efficient and precision all significantly improve.Clearly, the said anchor clamps 12 of pick-up unit of the present invention can also adopt the configuration of other quantity as required.
Pick-up unit of the present invention is accomplished the cable cover(ing) tensile elongation and is detected test under computer control, the principle of work of testing process is following: the industrial camera 2 that is arranged in puller system 1 opposite is sent the test specimen stretching video image that collects into industrial computer 4, and industrial computer 4 at first carries out pre-service with image; Accomplish gray processing and Threshold Segmentation, through the profile of mark line in the profile detection method detected image, the profile that finds is judged then; Cast out the noise profile; And then the position of definite mark line, calculate the barycenter of profile then, up and down two barycenter lines; Calculate the distance of line, be length between monumented point.
The software program explanation of pick-up unit of the present invention is (referring to accompanying drawing 3) as follows:
1. initialization: definition and initializing variable, pointer and internal memory.
2. collection video: in program,, realize video capture through catching image with certain rate loop.
3. image binaryzation: through coloured image is varied to gray level image, setting threshold is transformed into bianry image with gray level image again.Can use the method for automatic threshold or the method for fixed threshold.
4. searching profile: detect all profiles in the bianry image,, abandon other profiles beyond the markings profile, the profile of a retention marker line according to the size characteristic of mark line profile.
5. calculate the barycenter of all mark line profiles and deposit sequence in, obtain the position at mark line place.
6. the barycenter with all mark line profiles sorts according to the X coordinate, obtains mark line barycenter sequence.Because test specimen is a longitudinal stretching, so per in order two barycenter are divided into one group, these two barycenter are exactly the position of two mark lines on the same test specimen.
7. calculate the length between the adjacent two barycenter pixels, the distance between two mark lines on the promptly same test specimen.
8. tensile elongation relevant information and the present image with test specimen is presented on the computer screen.
9. preservation present image.
10. judge whether test specimen is broken, if quilt is broken then write down current test specimen tensile elongation.If do not break then return step 2.
Whether broken 11. judge all test specimens,, otherwise returned step 2 if then print.
12. releasing memory has promptly been accomplished the cable cover(ing) tensile elongation and has been detected test.
According to described software program explanation and shown in Figure 3, those skilled in the art provide specific procedure easily.
The method of application of pick-up unit of the present invention is following:
1) gets 5 cable cover(ing) test specimens, by the GB marked;
2) 5 cable cover(ing) test specimens are placed on the puller system, good with clamps;
3) start industrial computer, click the beginning test button;
4) start puller system, promptly can show the tensile elongation information of test specimen on the industrial computer screen in real time;
5) after 5 test specimens all rupture, can select print button, the output test specimen detects information.
Through above process of the test, accomplish a complete test specimen tensile elongation and detect test.
The present invention does not address part and is applicable to prior art.
Though pick-up unit of the present invention carries out the tensile elongation experiment to cable cover(ing) on the one hand and designs; But be not limited to the tensile elongation experiment of cable cover(ing); Other suitable test specimen tensile elongation experiments are equally applicable to pick-up unit of the present invention; Pick-up unit of the present invention on the other hand both can be used for the existing conventional tension tester is transformed, and also can newly be designed to cable cover(ing) dedicated tensile test machine.Pick-up unit of the present invention can realize detecting the automatic contactless detection of test specimen tensile elongation, and single test can accomplish the check of 5 test specimens, realizes the automatic record and the printout of test figure, is the test unit that can control automatically and write down.
Claims (3)
1. cable cover(ing) tensile elongation pick-up unit; Comprise hardware components and software section; Hardware components comprises puller system and motor; It is characterized in that hardware components also comprises industrial camera, A-frame, industrial computer and printer, said industrial camera is positioned on the A-frame, and is positioned at the right opposite at puller system stretching position; Software section is installed in the industrial computer, comprises data acquisition module, data processing module and the data disaply moudle and/or the printout module that connect successively.
2. cable cover(ing) tensile elongation pick-up unit according to claim 1 is characterized in that said A-frame is an adjustable-height type A-frame.
3. cable cover(ing) tensile elongation pick-up unit according to claim 1 is characterized in that said anchor clamps are configured to 5 covers.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104180616A CN102494618A (en) | 2011-12-15 | 2011-12-15 | Cable sheath tensile length detection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104180616A CN102494618A (en) | 2011-12-15 | 2011-12-15 | Cable sheath tensile length detection apparatus |
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| CN102494618A true CN102494618A (en) | 2012-06-13 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807407A (en) * | 2015-04-01 | 2015-07-29 | 常州大学 | Mobile phone length measuring method based on bank card |
| CN105203395A (en) * | 2015-09-22 | 2015-12-30 | 苏州维艾普新材料股份有限公司 | Method for rapidly detecting strength of glass wool and products of glass wool |
| CN105910539A (en) * | 2016-05-30 | 2016-08-31 | 河北工业大学 | Cable sheath tensile length measuring device and cable sheath tensile length measuring method based on machine vision |
| CN108051301A (en) * | 2018-01-30 | 2018-05-18 | 海宁市力天袜业有限公司 | A kind of mechanical stocking stretching tester |
| CN111947590A (en) * | 2020-02-17 | 2020-11-17 | 北京联睿科科技有限公司 | Online detection device, method and system for building deformation |
| CN113175908A (en) * | 2021-05-27 | 2021-07-27 | 天津长荣科技集团股份有限公司 | Mask ear belt length detection device and qualification degree judgment method |
| CN115616365A (en) * | 2022-12-19 | 2023-01-17 | 佛山市顺德区广意通讯电缆有限公司 | Testing machine for communication cable detection |
| CN115655876A (en) * | 2022-09-26 | 2023-01-31 | 江阴市浩盛电器线缆制造有限公司 | Tensile anti-collision low-loss cable endurance analysis system |
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| CN201569611U (en) * | 2009-12-17 | 2010-09-01 | 北京有色金属研究总院 | Aluminum alloy heat-insulating section bar transverse tension testing machine |
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| CN201569611U (en) * | 2009-12-17 | 2010-09-01 | 北京有色金属研究总院 | Aluminum alloy heat-insulating section bar transverse tension testing machine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807407A (en) * | 2015-04-01 | 2015-07-29 | 常州大学 | Mobile phone length measuring method based on bank card |
| CN105203395A (en) * | 2015-09-22 | 2015-12-30 | 苏州维艾普新材料股份有限公司 | Method for rapidly detecting strength of glass wool and products of glass wool |
| CN105910539A (en) * | 2016-05-30 | 2016-08-31 | 河北工业大学 | Cable sheath tensile length measuring device and cable sheath tensile length measuring method based on machine vision |
| CN105910539B (en) * | 2016-05-30 | 2018-05-04 | 河北工业大学 | Cable cover(ing) tensile elongation measuring device and method based on machine vision |
| CN108051301A (en) * | 2018-01-30 | 2018-05-18 | 海宁市力天袜业有限公司 | A kind of mechanical stocking stretching tester |
| CN111947590A (en) * | 2020-02-17 | 2020-11-17 | 北京联睿科科技有限公司 | Online detection device, method and system for building deformation |
| CN113175908A (en) * | 2021-05-27 | 2021-07-27 | 天津长荣科技集团股份有限公司 | Mask ear belt length detection device and qualification degree judgment method |
| CN115655876A (en) * | 2022-09-26 | 2023-01-31 | 江阴市浩盛电器线缆制造有限公司 | Tensile anti-collision low-loss cable endurance analysis system |
| CN115655876B (en) * | 2022-09-26 | 2023-11-10 | 江阴市浩盛电器线缆制造有限公司 | Tensile type anti-collision low-loss cable endurance analysis system |
| CN115616365A (en) * | 2022-12-19 | 2023-01-17 | 佛山市顺德区广意通讯电缆有限公司 | Testing machine for communication cable detection |
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Application publication date: 20120613 |