CN102692200B - Device for automatically detecting spool displacement of electromagnetic valve with high precision and method thereof - Google Patents
Device for automatically detecting spool displacement of electromagnetic valve with high precision and method thereof Download PDFInfo
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- CN102692200B CN102692200B CN201210203011.0A CN201210203011A CN102692200B CN 102692200 B CN102692200 B CN 102692200B CN 201210203011 A CN201210203011 A CN 201210203011A CN 102692200 B CN102692200 B CN 102692200B
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- solenoid valve
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Abstract
The invention discloses a device for automatically detecting spool displacement of an electromagnetic valve with high precision and a method thereof. The device comprises a work platform, an electromagnetic valve fixing bracket, a sensor bracket, a stepping motor, a high-precision displacement sensor and a signal detection and analysis control instrument. The device is characterized in that a placed electromagnetic valve can be fixed automatically and a sensor probe can extend to a detection part through the moveable sensor bracket. The position of the sensor is controlled by the stepping motor, the spool displacement of the electrified electromagnetic valve is detected by the high-precision displacement sensor, and the signal detection and analysis control instrument outputs a result that a product is qualified or not. The detection process disclosed by the invention is carried out automatically, the efficiency is high, the detection is reliable and high, the time and the labor are saved and a guarantee for overall detection of electromagnetic valve products is provided.
Description
Technical field
The present invention relates to a kind of devices and methods therefor for valve core of the electromagnetic valve displacement being carried out automatically measure, belong to the technical field of mechanical technology equipment automatization.
Background technology
Whether solenoid valve spool displacement before and after energising has determined within allowed band that whether solenoid valve is qualified.Whether qualifiedly detecting solenoid valve is the indispensable link of producing and checking.There is no at present automatic checkout equipment, can only be by manually detecting.Detection method is generally with the slide calliper rule with fine needle, before and after energising, carries out respectively one-shot measurement, reads reading and judges whether within allowed band.Detection means is original and precision is not high, has undetected and flase drop phenomenon.Increased operating personnel's workload, efficiency is low especially simultaneously, is difficult to meet large-scale production needs.Once there is undetected, flase drop or occur that because of sampling observation underproof product is used as certified products, will cause follow-up serial serious consequence.So it is very necessary that solenoid valve is carried out to the full inspection of high precision.Also need corresponding automatic detection device to ensure the smooth enforcement detecting simultaneously.
Summary of the invention
The object of the invention is to design a kind of High Precision Automatic detecting position moving device, only needing to put into solenoid valve and starting measure button in the situation that, the displacement after valve core of the electromagnetic valve energising detected, and judge whether qualified.Another object of the present invention is to provide a kind of detection method of utilizing this pick-up unit.
The technical scheme that device of the present invention adopts is as follows:
The device of High Precision Automatic detection valve core of the electromagnetic valve displacement: solenoid valve holder, guide rails fixing support and sensor stand are installed on workbench, sensor stand can be on the guide rail of guide rails fixing support transverse shifting; Solenoid valve is placed on described solenoid valve holder, and sensor is fixed on described sensor stand, and the probe of sensor is towards described solenoid valve; On described sensor stand and towards a side of described solenoid valve, be also provided with hold down gag; Stepper motor is connected with described sensor stand by feed screw nut; The switching on power and the movement of described stepper motor of solenoid valve described in input analysis and Control instrument control system, its measurement data is directly shown by display screen.
Described hold down gag comprises pitman shaft, holddown spring and compact heap, and pitman shaft is fixed on sensor stand, and compact heap is positioned at the front end of pitman shaft, and holddown spring is arranged between pitman shaft and compact heap.
The technical scheme that method of the present invention adopts is as follows:
(1) on solenoid valve holder, put into tested solenoid valve, solenoid valve is fixed, and seat is automatic locates;
(2) start stepper motor, make sensor stand transverse shifting on the guide rail of guide rails fixing support, shift to solenoid valve, and by the hold down gag of front end, solenoid valve is held out against;
(3) stepper motor continues to move, and the probe of sensor is sent into detection position by solenoid valve aperture, the displacement signal of output transducer probe while encountering valve core of the electromagnetic valve;
(4) in the time that the shift value of sensor probe is 2.5mm, the stepper motor stop motion processed of input analysis and Control instrument control, and control and automatically connect power of electromagnetic valve, solenoid valve adhesive;
(5) sensor probe moves with valve core of the electromagnetic valve, the shift value of the sensor probe of output, and by input analysis and Control instrument record data and judge whether qualifiedly, display screen shows data and whether qualified result;
(6) input analysis and Control instrument control system disconnects power of electromagnetic valve, and valve core of the electromagnetic valve unclamps, and input analysis and Control instrument control stepper motor processed is oppositely return, and stepper motor drives sensor stand to return to initial position;
(7) hold down gag unclamps solenoid valve automatically, takes out solenoid valve, measures and finishes.
Automatic detection valve core of the electromagnetic valve gearshift of the present invention and method thereof, have the following advantages:
1, realize the full inspection of solenoid valve product, solved the quality inspection bottleneck problem of producing solenoid valve in enormous quantities.Increase the security of product quality.2, accuracy of detection is high, and testing result, to improvement of production process, is improved the quality of products and had statistics directive significance.3, realize automation mechanized operation, ensured the reliability detecting.4, adopt automated detection method, use manpower and material resources sparingly, and make the full inspection of product become possibility.
Brief description of the drawings
Fig. 1 is the system construction drawing of the High Precision Automatic detection valve core of the electromagnetic valve of the present invention gearshift.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
The device of the present embodiment can the tested solenoid valve of Automatic-clamping, automatically sends into detecting sensor probe, automatically connects power of electromagnetic valve, automatically records valve core of the electromagnetic valve displacement, judges whether qualified and shows accordingly and remind, and the installation steps of its device are:
1), on rectangle cast iron platform, solenoid valve holder is installed;
2) on rectangle cast iron platform, sensor installation support guide;
3), on rectangle cast iron platform, stepper motor is installed;
4) sensor installation support on sensor guide rail;
5) on stepper motor rotary screw, nut is housed;
6) nut is fixedly connected with sensor stand;
7) nut pitman shaft and spring and compact heap are installed on sensor stand;
8) select high-precision displacement transducer, measurement range 0-3mm, full accuracy can reach 0.01um, sensor front end fixed diameter 1.5mm probe;
9) sensor signal is connected to measuring instrument.
The measuring process of said apparatus is:
1) on solenoid valve holder, put into solenoid valve and shift detection position onto;
2) press start button;
3) measurement mechanism resets and returns 0;
4) stepper motor starts, and by spring force, solenoid valve is held out against;
5) stepper motor continues to move, and probe is sent into detection position by solenoid valve aperture, output displacement signal while encountering valve core of the electromagnetic valve;
6) in the time that displacement is 2.5mm, the stepper motor stop motion processed of input analysis and Control instrument control;
7) input analysis and Control instrument control turn-on power of electromagnetic valve, solenoid valve adhesive;
8) high-precision sensor probe moves with valve core of the electromagnetic valve, output displacement numerical value;
9) input analysis and Control instrument record data judge whether qualifiedly, LED display shows data and whether qualified result;
10) input analysis and Control instrument control system disconnects power of electromagnetic valve, and valve core of the electromagnetic valve unclamps;
11) input analysis and Control instrument control stepper motor processed is oppositely return;
12) stepper motor drives sensor stand to return, and unclamps solenoid valve;
13) take out solenoid valve, measure and finish.
Whether device of the present invention can automatically detect valve core of the electromagnetic valve moving displacement and within acceptability limit and accordingly, point out.Sensor measurement signal detects analysis and Control instrument and carries out linear drift compensation, and outcome measurement precision is high.Its measuring process robotization, measuring speed is fast, and precision is high, simple to operate.
Claims (3)
1. the device of High Precision Automatic detection valve core of the electromagnetic valve displacement, is characterized in that, solenoid valve holder, guide rails fixing support and sensor stand are installed on workbench, sensor stand can be on the guide rail of guide rails fixing support transverse shifting; Solenoid valve is placed on described solenoid valve holder, and sensor is fixed on described sensor stand, and the probe of sensor is towards described solenoid valve; On described sensor stand and towards a side of described solenoid valve, be also provided with hold down gag; Stepper motor is connected with described sensor stand by feed screw nut; The switching on power and the movement of described stepper motor of solenoid valve described in input analysis and Control instrument control system, its measurement data and judged result are directly shown by display screen.
2. the device of High Precision Automatic detection valve core of the electromagnetic valve according to claim 1 displacement, it is characterized in that, described hold down gag comprises pitman shaft, holddown spring and compact heap, pitman shaft is fixed on described sensor stand, compact heap is positioned at the front end of pitman shaft, and holddown spring is arranged between pitman shaft and compact heap.
3. the detection method of utilizing the device of High Precision Automatic detection valve core of the electromagnetic valve as claimed in claim 1 or 2 displacement, comprises the steps:
(1) on solenoid valve holder, put into tested solenoid valve, solenoid valve is fixed, and seat is automatic locates;
(2) start stepper motor, make sensor stand transverse shifting on the guide rail of guide rails fixing support, shift to solenoid valve, and by the hold down gag of front end, solenoid valve is held out against;
(3) stepper motor continues to move, and the probe of sensor is sent into detection position by solenoid valve aperture, the displacement signal of output transducer probe while encountering valve core of the electromagnetic valve;
(4) in the time that the shift value of sensor probe is 2.5mm, the stepper motor stop motion processed of input analysis and Control instrument control, and control and automatically connect power of electromagnetic valve, solenoid valve adhesive;
(5) sensor probe moves with valve core of the electromagnetic valve, the shift value of the sensor probe of output, and by input analysis and Control instrument record data and judge whether qualifiedly, display screen shows data and whether qualified result;
(6) input analysis and Control instrument control system disconnects power of electromagnetic valve, and valve core of the electromagnetic valve unclamps, and input analysis and Control instrument control stepper motor processed is oppositely return, and stepper motor drives sensor stand to return to initial position;
(7) hold down gag unclamps solenoid valve automatically, takes out solenoid valve, measures and finishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203011.0A CN102692200B (en) | 2012-06-19 | 2012-06-19 | Device for automatically detecting spool displacement of electromagnetic valve with high precision and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210203011.0A CN102692200B (en) | 2012-06-19 | 2012-06-19 | Device for automatically detecting spool displacement of electromagnetic valve with high precision and method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN102692200A CN102692200A (en) | 2012-09-26 |
| CN102692200B true CN102692200B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210203011.0A Active CN102692200B (en) | 2012-06-19 | 2012-06-19 | Device for automatically detecting spool displacement of electromagnetic valve with high precision and method thereof |
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Cited By (1)
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|---|---|---|---|---|
| CN109099829A (en) * | 2018-07-23 | 2018-12-28 | 上海篆恒实业有限公司 | A kind of steering bracket width detection equipment |
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| CN104457653A (en) * | 2014-10-11 | 2015-03-25 | 宁波诺依克电子有限公司 | Displacement detection method for valve element of linear electromagnetic valve |
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| CN106225680B (en) * | 2016-07-25 | 2019-05-14 | 天津英创汇智汽车技术有限公司 | A kind of spool displacement measuring device and method based on laser displacement sensor |
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| CN109141177B (en) * | 2018-10-09 | 2020-12-18 | 华北电力大学（保定） | Displacement sensor for switching value control |
| CN110986781A (en) * | 2019-12-26 | 2020-04-10 | 芜湖通和汽车管路系统股份有限公司 | Device for detecting position of valve core in valve body |
| CN112130102A (en) * | 2020-09-09 | 2020-12-25 | 中国第一汽车股份有限公司 | Automatic electromagnetic force testing system, testing device and testing method for electromagnetic force of electromagnetic valve of transmission |
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| JP2001194104A (en) * | 2000-01-05 | 2001-07-19 | Honda Motor Co Ltd | Displacement detecting apparatus |
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Effective date of registration: 20170317 Address after: 214223 Yixing Lake City, * * Dong Xing Village Patentee after: Jiangsu create three-dimensional Intelligent Technology Co., Ltd. Address before: Yuen Road Qixia District of Nanjing City, Jiangsu Province, No. 1 210046 Patentee before: Nanjing Normal University |
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