CN101349538A - Method and device for measuring piston ring excircle configuration multiple parameters - Google Patents
Method and device for measuring piston ring excircle configuration multiple parameters Download PDFInfo
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- CN101349538A CN101349538A CNA2008100459549A CN200810045954A CN101349538A CN 101349538 A CN101349538 A CN 101349538A CN A2008100459549 A CNA2008100459549 A CN A2008100459549A CN 200810045954 A CN200810045954 A CN 200810045954A CN 101349538 A CN101349538 A CN 101349538A
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- guide rail
- excircle configuration
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Abstract
The invention discloses a process for measuring the cylindrical outline multi-parameter of a piston ring and a device thereof. The basic content is that an anti-rotating nut in a precision lead screw driving pair is driven by a stepping motor under the control of a computer to drive an air-float guide rail sleeve to move up and down along the direction of a Z-shaft, a two-dimension scanning system with high precision is formed by a measuring head and an air-float guide rail with high precision for scanning and measuring the cylindrical outline of the piston ring clamped on a bench, wherein the measuring head is arranged on the air-float guide rail sleeve, and is formed by an electric eddy sensor and a canning knife-edge which is fixed on the supporting lower end of a parallel reed, and the computer timely displays detected data and the outline image of the detected piston ring which is amplified according to proportion on a screen, the stepping motor rapidly and reversely rotates after the set ring height value is scanned, and the air-float guide rail sleeve can automatically and rapidly return to the initial position under the gravity effect. The invention has the characteristics of high automation degree, many measuring parameters, high measuring precision, fast detecting speed, stable performance and convenient operation, etc.
Description
Technical field
The present invention relates to a kind of piston ring excircle configuration multiple parameters measuring technique, particularly relate to method and device by the various parameters of measurement piston ring excircle configuration of computer controlled automatic measuring process.
Background technology
Piston ring is the critical part of explosive motor and piston compressor, and the quality of its quality directly influences the performance of engine and compressor.Because explosive motor is applied to industries such as automobile, agricultural machinery, boats and ships, motorcycle, the supporting and Chinese state of the accessory annual production of main frame just reaches several hundred million.So the piston ring consumption is very big, influence also very big.And in the piston ring technical parameter, the detection difficulty maximum of the technical parameter of excircle configuration.The most of enterprise of the domestic piston ring industry of China is detected with relatively backward manual inspection means, adopting the axle center to cut off the back as common taper-face ring detects on universal tool-measuring microscope, bucket face ring, oil ring adopt the lower pick-up unit of precision to measure, adopt these methods that piston ring excircle configuration is measured, not enough place one is that accuracy of detection and efficient are low, the more important thing is and adopt such inspection method can make the processing process interrupted by becoming continuously, production efficiency reduces.The domestic indivedual large enterprises of China adopt general contourgraph to detect the piston ring excircle configuration single parameter respectively at measuring room at present, adopt this measuring method, not only efficient is low, measurement mechanism costs an arm and a leg, environment for use requires high and can not be used for the production scene, and domestic most manufacturing enterprise does not possess these conditions, has therefore influenced the quality assurance of piston ring industry to a great extent.
Summary of the invention
The objective of the invention is to avoid the weak point of prior art, and provide a kind of by the computer controlled automatic measuring process, can determine underproof tested ring rapidly, can provide tested ring excircle configuration in length and breadth to each figure that amplifies by a certain percentage and measurement data again rapidly, piston ring excircle configuration multiple parameters measuring method and device that measuring accuracy and efficient are high.
Above-mentioned purpose of the present invention can realize by following method and apparatus.
The disclosed method that is used to measure piston ring excircle configuration multiple parameters mainly comprises following measuring process:
(1) tested piston ring is clamped on the worktable of piston ring excircle configuration multiple parameters measurement mechanism;
(2) type, specification and the piston ring excircle configuration parameter of tested piston ring are imported computing machine;
(3) start the piston ring excircle configuration multiple parameters measurement mechanism, the excircle configuration of tested piston ring is carried out scanning sample, by computer software scanning sample is obtained data and handle, try to achieve a plurality of parameters of the description piston ring excircle configuration of step (2) input;
(4) computing machine is presented at the tested piston ring excircle configuration figure of the data of measurement parameter and amplification in proportion on the screen in real time; And/or
(5) print measurement result.
The required parameter of description piston ring excircle configuration that the input computing machine will be measured is because of the type difference difference of piston ring.For common taper-face ring, the measurement parameter of is generally the cylindrical gradient α (oblique angle) and the bus linearity of ring; For first kind band platform taper-face ring, the measurement parameter of is generally cylindrical gradient α, bus linearity and podium level h1, the h2 of ring; For the second class band platform taper-face ring, the measurement parameter of is generally cylindrical gradient α and the bus linearity and the podium level h1 of ring; For the 3rd class band platform taper-face ring, the measurement parameter of is generally cylindrical gradient α and bus linearity and podium level h1, the h2 of ring; For bucket face ring and inclined to one side bucket face ring, the measurement parameter of is generally bucket face degree t2, t3 and the high some axial difference Δ of ring; For oil ring, the measurement parameter of is generally scraping land radial deflection degree Δ and scraping land height h4, the h5 of ring.
The present invention is used to implement the measurement mechanism of above-mentioned piston ring excircle configuration multiple parameters measuring method, comprise being clamped in measuring head that tested piston ring on the worktable implements to measure, driving air-float guide rail that measuring head moves along the Z direction and pay by its guide rail sleeve and drive the stepper motor that the air-float guide rail cover moves by the screw mandrel transmission, described measuring head is equipped with the scanning edge of a knife, leaf spring bearing and sensor, the scanning edge of a knife is arranged on the leaf spring bearing end, sensor and the corresponding setting of the scanning edge of a knife, into a single integrated structure measuring head is fixed on air-float guide rail and puts.
Above-mentioned measurement piston ring excircle configuration multiple parameters device, preferably be designed to vertical structure, to assemble connect all-in-one-piece measuring head and air-float guide rail cover by suspended on support, the balance weight balance that the cable band that the weight of suspension body by pulley bearing hangs, in order to obtain better effect, the weight of balance weight can be designed to be slightly less than the suspension body weight that is formed by measuring head and air supporting guide rail sleeve, the cable band of hanging balancing weight preferably adopts steel band.Measurement mechanism adopts this structure, helps reducing the driving force of device, improves the degree of operating steadily of device and the measuring accuracy of device.
In above-mentioned piston ring excircle configuration multiple parameters measurement mechanism, leaf spring bearing can be designed to the parallel leaf spring bearing that is made of the two sheet springs that be arranged in parallel, the scanning edge of a knife is arranged on the lower end of parallel leaf spring bearing, and sensor does not contact with the scanning edge of a knife, forms non-contact measurement system.
In above-mentioned piston ring excircle configuration multiple parameters measurement mechanism, described air-float guide rail preferentially selects for use kinematic accuracy to be not less than the surface throttle type gas-static air-float guide rail of 0.1 μ m; Sensor preferentially selects for use resolution to be not less than 0.1 μ m, and the error of indication is not more than ± the frequency modulation type current vortex sensor of 0.2 μ m.
In above-mentioned piston ring excircle configuration multiple parameters measurement mechanism, the driving coupling that the screw mandrel transmission is paid between the air-float guide rail cover preferably adopts a Contact Transmission to connect, and adopts this structure, can avoid the influence of the driving error of screw mandrel transmission to measuring accuracy.
The present invention has also taked some other technical measures, is designed to rotating-proof nut as the nut that constitutes the screw mandrel transmission jointly with screw mandrel.
Piston ring excircle configuration multiple parameters measurement mechanism disclosed by the invention in conjunction with supporting Survey Software, adopts method of the present invention, and technical feature can reach following index:
● the error of indication:
Taper-face ring cylindrical oblique angle: ± 2 '
Band platform taper-face ring cylindrical oblique angle: ± 2 '
Band platform taper-face ring platform height: ± 0.02mm
Bucket face ring bucket face degree: ± 0.001mm
Bucket face annulate shaft is poor to height point: ± 0.02mm
Oil ring frizing sword radial deflection degree: ± 0.001mm
Oil ring frizing sword height: ± 0.02mm
● repeatability (duplicate measurements 10 times, maximal value and minimum value poor):
Taper-face ring cylindrical oblique angle: 2 '
Band platform taper-face ring cylindrical oblique angle: 2 '
Band platform taper-face ring platform height: 0.02mm
Bucket face ring bucket face degree: 0.001mm
Bucket face annulate shaft is poor to height point: 0.02mm
Oil ring frizing sword radial deflection degree: 0.001mm
Oil ring frizing sword height: 0.02mm
● stability (definition of stability is respectively to survey 10 times mean value poor before and after the 4h, variation of ambient temperature less than 3 ℃/4h):
Taper-face ring cylindrical oblique angle: 2 '/4h
Band platform taper-face ring cylindrical oblique angle: ± 2 '/4h
Band platform taper-face ring platform height: 0.02mm/4h
Bucket face ring bucket face degree: 0.001mm/4h
Bucket face annulate shaft is poor to height point: 0.02mm/4h
Oil ring frizing sword radial deflection degree: 0.001mm/4h
Oil ring frizing sword height: 0.02mm/4h
The inventor adopts piston ring excircle configuration multiple parameters measurement mechanism of the present invention and measuring method, ring is that highly 0.8-7mm, ring diameter are that a plurality of parameters of the description piston ring excircle configuration of the polytype piston ring in the Ф 30-200mm scope are measured, and have all obtained the expection measurement effect.
The present invention measures the process of piston ring excircle configuration: when measuring, at first selected parameter, and compress tested ring with depression bar, drive accurate screw mandrel rotation by stepper motor then, to moving from bottom to top, the scanning edge of a knife carries out scanning survey to tested ring excircle configuration to the guide rail sleeve that drives air-float guide rail by rotating-proof nut along Z.Computing machine is with test data and be presented on the screen in real time to each excircle configuration figure that amplifies by a certain percentage in length and breadth, after covering the high value of regulation ring, the reverse fast rotational of stepper motor, air-float guide rail is enclosed within and returns to reference position under the action of gravity automatically fast, be ready to measure next time, and Measurement results is presented on the screen.
The software kit system of apparatus of the present invention can implement device control, data acquisition, computing, tested ring contour pattern show in real time, and have functions such as repeated examination, instrumental correction, statistics, printing, software also has the CP measurement function, can monitor the precision of machining tool.
The present invention have environment for use require low, can be used in the piston ring production scene.But machine operation workman direct control instrument detecting piston ring obtains the excircle configuration figure and the measurement data of tested ring, with the debugging machining tool, guarantees product quality, need not full-time testing staff.
Scanning system of the present invention is by the high precision air-float guide rail, the two-dimension high-precision scanning system that parallel leaf spring bearing and high-precision sensor are formed, under the sub computers software control, piston ring excircle configuration is carried out scanning survey, therefore, the present invention has the automaticity height, measurement parameter is many, the measuring accuracy height, detection speed is fast, stable performance, characteristics such as easy to operate and advanced technology, it is the satisfactory technology of measuring the piston ring excircle configuration parameter, solved piston ring manufacturing enterprise and thirsted for for a long time solving and open question, the powerful measure that detects the piston ring excircle configuration parameter is provided for them.
Description of drawings
Accompanying drawing 1 is the principle schematic of piston ring excircle configuration multiple parameters measurement mechanism.
Accompanying drawing 2 is type synoptic diagram of tested piston ring, and wherein 2-1 is common taper-face ring, and 2-2 is a first kind band platform taper-face ring, 2-3 is the second class band platform taper-face ring, and 2-4 is the 3rd class band platform taper-face ring, and 2-5 is positive bucket face ring, 2-6 is inclined to one side bucket face ring, and 2-7 is an oil ring.
In accompanying drawing 1,1 anti-rotation orienting lug; 2 screw mandrel transmissions; 3 stepper motors; 4 pulleys; 5 air-float guide rails; 6 cable bands; 7 balance weights; 8 leaf spring bearings; 9 tested piston rings; The 10 scanning edges of a knife; 11 sensors; 12 worktable.
In accompanying drawing 2, H is the height of ring; α is cylindrical gradient (oblique angle); H1～h2 is a podium level; H4～h5 is the scraping land height; H25, h26, h27, h8 are the location parameter of bucket face degree; T2, t3 are the bucket face degree of bucket face ring.
Embodiment
Provide an embodiment of piston ring excircle configuration multiple parameters measurement mechanism below in conjunction with description of drawings, and the present invention is further illustrated to pass through embodiment, to make things convenient for the understanding of the present invention.
Embodiment 1-piston ring excircle configuration multiple parameters measurement mechanism
Provided by the inventionly be used to measure the measurement mechanism of describing piston ring excircle configuration multiple parameters, comprise being clamped in measuring head that being implemented by piston ring 9 on the worktable 12 measure, driving air-float guide rail 5 that measuring head moves along the Z direction and drive the stepper motor 3 that the air-float guide rail covers move by screw mandrel transmission 2 by its guide rail sleeve.The driving coupling that the screw mandrel transmission is paid between the air-float guide rail guide rail sleeve adopts the some Contact Transmission to connect, and the nut design that constitutes the screw mandrel transmission has anti-rotation orienting lug 1.It is the surface throttle type gas-static air-float guide rail of 0.1 μ m that described air-float guide rail is selected kinematic accuracy for use.The parallel leaf spring bearing 8 that described measuring head is made of the two sheet springs that be arranged in parallel, fixed in position constitute at the scanning edge of a knife 10 of parallel leaf spring bearing lower end with the sensor 11 of the corresponding setting of the scanning edge of a knife, the measuring system of measuring head is a non-contact measurement system, sensor contact with the scanning edge of a knife in to the process of being measured scanning by piston ring at the scanning edge of a knife, and it is that 0.1 μ m, the error of indication are the frequency modulation type current vortex sensor of ± 0.2 μ m that sensor is selected resolution for use.Sensor is coupled to the measuring head that one constitutes with the scanning edge of a knife, is fixed on the guide rail sleeve of air-float guide rail, forms the suspension body of vertical structure measurement mechanism, by suspended on support.Balance weight 7 balances that the steel cable band 6 that the weight of suspension body by pulley bearing hangs, but the weight of balance weight is slightly less than the weight of suspension body.
Embodiment 2-piston ring excircle configuration multiple parameters measuring method
Present embodiment with the second class band platform taper-face ring as measuring object.The major parameter of describing piston ring excircle configuration has cylindrical gradient α (oblique angle), bus linearity and the podium level h1 of ring, is the piston ring excircle configuration parameter that present embodiment will be measured.
The method that present embodiment is measured the second class band platform taper-face ring excircle configuration multiple parameters comprises following measuring process:
(1) the second measured class band platform taper-face ring is clamped on the worktable of the piston ring excircle configuration multiple parameters measurement mechanism that embodiment 1 provided;
(2) with the type-second class band platform taper-face ring of tested piston ring, ring diameter Ф 100mm and piston ring excircle configuration parameter-cylindrical gradient α, bus linearity and the podium level h1 of the specification of piston ring-ring height 5mm, piston ring import computing machine;
(3) start the piston ring excircle configuration multiple parameters measurement mechanism that embodiment 1 is provided, driving accurate screw mandrel transmission by stepper motor moves along Z-direction from bottom to top by the guide rail sleeve that rotating-proof nut drives air-float guide rail, being loaded on air-float guide rail puts by frequency modulation numeral current vortex sensor and with the measuring head that the scanning edge of a knife that is fixedly installed on parallel leaf spring bearing lower end constitutes the piston ring excircle configuration that is clamped on the worktable is carried out scanning survey, by computer software scanning sample is obtained data and handle, try to achieve a plurality of parameters of the description piston ring excircle configuration of step (2) input.After having scanned the high value of regulation ring, the reverse fast rotational of stepper motor, air-float guide rail is enclosed within and returns to reference position under the action of gravity automatically fast, is ready to measure next time;
(4) supplemental characteristic that Treatment Analysis is obtained by computing machine reaches and is being presented on the screen in real time to the tested piston ring excircle configuration figure that amplifies by a certain percentage respectively in length and breadth;
(5) print measurement result.
Be that embodiment to piston ring excircle configuration multiple parameters measurement mechanism and measuring method has done detailed description above; be necessary what this particularly pointed out to be; the specific embodiment of the present invention is not limited to the given form of embodiment; content that those of ordinary skills disclose according to the present invention and the ken that is possessed; can also make many variations to it, therefore the specific embodiment of the present invention can not be interpreted as limiting the scope of the invention.
Claims (10)
1, a kind of piston ring excircle configuration multiple parameters measuring method is characterized in that mainly comprising following measuring process:
(1) tested piston ring is clamped on the worktable of piston ring excircle configuration multiple parameters measurement mechanism;
(2) type, specification and the piston ring excircle configuration parameter of tested piston ring are imported computing machine;
(3) start the piston ring excircle configuration multiple parameters measurement mechanism, the excircle configuration of tested piston ring is carried out scanning sample, by computer software scanning is obtained data and handle, try to achieve the parameter of the description piston ring excircle configuration of step (2) input;
(4) computing machine is presented at the tested piston ring excircle configuration figure of the data of measurement parameter and amplification in proportion on the screen in real time; And/or
(5) print measurement result.
2, piston ring excircle configuration multiple parameters measuring method according to claim 1, after it is characterized in that selecting on computers the type of tested ring and importing the height nominal value of tested ring, computing machine determines that automatically the piston ring excircle configuration parameter that needs to measure is:
(1) common taper-face ring, the cylindrical gradient α of ring and bus linearity; Or
(2) first kind band platform taper-face ring, cylindrical gradient α, bus linearity and podium level h1, the h2 of ring; Or
(3) second class band platform taper-face rings, cylindrical gradient α, bus linearity and the podium level h1 of ring; Or
(4) the 3rd class band platform taper-face rings, cylindrical gradient α, bus linearity and podium level h1, the h2 of ring; Or
(5) bucket face ring and bucket face ring partially, bucket face degree t2, the t3 of ring and high some axial difference Δ; Or
(6) oil ring, the scraping land radial deflection degree Δ of ring and scraping land height h4, h5.
3, be used to implement the measurement mechanism of the described piston ring excircle configuration multiple parameters measuring method of claim 1, it is characterized in that comprising to being clamped in measuring head that tested piston ring on the worktable implements to measure, driving air-float guide rail that measuring head moves along the Z direction and pay by its guide rail sleeve and drive the stepper motor that the air-float guide rail cover moves by the screw mandrel transmission, described measuring head is equipped with the scanning edge of a knife, leaf spring bearing and sensor, the scanning edge of a knife is arranged on the leaf spring bearing end, sensor and the corresponding setting of the scanning edge of a knife, into a single integrated structure measuring head is fixed on air-float guide rail and puts.
4, measurement mechanism according to claim 3, it is characterized in that measurement mechanism is a vertical structure, assembling connect all-in-one-piece measuring head and air-float guide rail cover by suspended on support, the balance weight balance of the cable band suspension that the weight of suspension body by pulley bearing.
5, measurement mechanism according to claim 4, it is characterized in that leaf spring bearing is the parallel leaf spring bearing that is made of the two sheet springs that be arranged in parallel, the scanning edge of a knife is arranged on the lower end of parallel leaf spring bearing, and sensor does not contact with the scanning edge of a knife, forms non-contact measurement system.
6,, it is characterized in that described air-float guide rail is the surface throttle type gas-static air-float guide rail that kinematic accuracy is not less than 0.1 μ m according to claim 3 or 4 or 5 described measurement mechanisms.
7, according to claim 3 or 4 or 5 described measurement mechanisms, it is characterized in that described sensor is that resolution is not less than 0.1 μ m, the error of indication is not more than ± the frequency modulation type current vortex sensor of 0.2 μ m.
8, measurement mechanism according to claim 6 is characterized in that described sensor is that resolution is not less than 0.1 μ m, the error of indication is not more than ± and the frequency modulation type current vortex sensor of 0.2 μ m.
9, measurement mechanism according to claim 8 is characterized in that the weight of balance weight is slightly less than the weight of suspension body, and the cable band of hanging balancing weight is a steel band.
10, measurement mechanism according to claim 9 is characterized in that the driving coupling that the screw mandrel transmission is paid between the air-float guide rail cover connects for the some Contact Transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100459549A CN101349538A (en) | 2008-09-01 | 2008-09-01 | Method and device for measuring piston ring excircle configuration multiple parameters |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100459549A CN101349538A (en) | 2008-09-01 | 2008-09-01 | Method and device for measuring piston ring excircle configuration multiple parameters |
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| CNA2008100459549A Pending CN101349538A (en) | 2008-09-01 | 2008-09-01 | Method and device for measuring piston ring excircle configuration multiple parameters |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655078A (en) * | 2015-02-13 | 2015-05-27 | 吴扬华 | Spindle bearing detection device adopting fan for heat dissipation and applied to steam turbine in power industry as well as detection method |
| CN113295114A (en) * | 2021-05-22 | 2021-08-24 | 中建二局第一建筑工程有限公司 | Underground diaphragm wall grooving size measuring tool and measuring method |
| CN113984887A (en) * | 2021-10-29 | 2022-01-28 | 中国航发北京航空材料研究院 | Method for acquiring disc profile on line by using eddy current automatic detection system |
-
2008
- 2008-09-01 CN CNA2008100459549A patent/CN101349538A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104655078A (en) * | 2015-02-13 | 2015-05-27 | 吴扬华 | Spindle bearing detection device adopting fan for heat dissipation and applied to steam turbine in power industry as well as detection method |
| CN113295114A (en) * | 2021-05-22 | 2021-08-24 | 中建二局第一建筑工程有限公司 | Underground diaphragm wall grooving size measuring tool and measuring method |
| CN113295114B (en) * | 2021-05-22 | 2023-11-28 | 中建二局第一建筑工程有限公司 | Tool and method for measuring grooving size of underground diaphragm wall |
| CN113984887A (en) * | 2021-10-29 | 2022-01-28 | 中国航发北京航空材料研究院 | Method for acquiring disc profile on line by using eddy current automatic detection system |
| CN113984887B (en) * | 2021-10-29 | 2024-02-09 | 中国航发北京航空材料研究院 | Method for online acquisition of disc profile by using eddy current automatic detection system |
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Open date: 20090121 |