CN102506677B - Automatic detector - Google Patents
Automatic detector Download PDFInfo
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- CN102506677B CN102506677B CN201110324863.0A CN201110324863A CN102506677B CN 102506677 B CN102506677 B CN 102506677B CN 201110324863 A CN201110324863 A CN 201110324863A CN 102506677 B CN102506677 B CN 102506677B
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- 238000005259 measurement Methods 0.000 description 8
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Abstract
The invention discloses an automatic detector, which comprises an inductive sensor, a signal processing circuit, an analogue/digital (A/D) converter and a displayer, wherein the inductive sensor allows a magnetic switch to turn on and off by changing the position of a hole so as to generate an electric signal; the electric signal is treated by a signal treatment circuit and then is transmitted to the A/D converter to be converted into a digital signal; and the digital signal is output by a displayer as a recognition signal. The automatic detector can automatically and accurately detect the position of the hole, and therefore obviously reduce errors.
Description
Technical field
The present invention relates to a kind of product detection device, particularly the automatic detection device of position, hole on a kind of product.
Background technology
General commercial production enterprise, the common method of testing product hole location is: adopt and take the position degree that comprehensive true position cubing that a locating surface, two register pins be positioning principle or three coordinate measuring machine realize parts and detect.
Along with the progress of rapid development of economy and society, automobile industry is stepped into the high speed development epoch, and society is increasing to the demand of auto parts and components.Although comprehensive true position cubing can meet the position measurement in hole, detection efficiency is low, is not suitable for batch detection, and main employment manual manipulation, and False Rate is high; Three-dimensional coordinates measurement precision is high, although the position degree in energy Measurement accuracy hole, measurement efficiency is low and measurement cost is high, and inapplicable batch detection.
Summary of the invention
Object of the present invention is just to provide a kind of automatic detecting machine, and automatic accurate holes of products position degree is detected of its energy, significantly reduces error.
The object of the invention is to realize by such technical scheme, it includes inductance type transducer, signal processing circuit, A/D converter and display, inductance type transducer makes magnetic induction switch break-make produce electric signal by the variation of hole site, electric signal is processed by signal processing circuit, be sent to A/D converter and be converted to digital signal, digital signal is exported identification signal by display.
Further, signal processing circuit includes two voltage followers, oscillator, phase-sensitive detector (PSD), AC amplifier, AC/DC changeover switch and direct current amplifier, between the first output terminal of inductance type transducer and the 3rd output terminal, be connected with potentiometer R1, the first output terminal of inductance type transducer is connected with the first input end of oscillator by the first follower, the 3rd output terminal of inductance type transducer is connected with the second input end of oscillator by the second follower, the output terminal of oscillator is connected with the first output terminal of AC/DC changeover switch by phase-sensitive detector (PSD), the second output terminal of the output terminal of potentiometer R1 and inductance type transducer is connected with the second input end with the first input end of AC amplifier with the 3rd resistance R 3 by the second resistance R 2 respectively, the output terminal of AC amplifier is connected with the second input end of AC/DC changeover switch, the first output terminal of ac-dc converter is connected with the second input end with direct current amplifier first input end with R5 by resistance R 4 respectively with the second output terminal, the output terminal of direct current amplifier is connected with A/D converter.
Further, described inductance type transducer is one.
Further, described inductance type transducer is one.
Further, described display is double-colored light control alarm device, and green light represents that holes of products position is qualified, and when red represents that holes of products position is defective.
Owing to having adopted technique scheme, the present invention has advantages of as follows:
1, measure that cost is low, work efficiency fast, be applicable to the Quick Measurement of typical products in mass production, different product can be realized mutually and using by changing different accessories;
2, detection machine is semiautomatic machine, and except Manual feeding, all the other actions are controlled and automatically carried out by small-sized microcomputer electronic box;
3, this checking machine has overproof warning function.Be equipped with double-colored light-operated warning system, green bright expression is qualified, and red bright expression is defective;
4, with automatic decision and automatic sorting function;
5, measuring process reduces people's manual manipulation as far as possible, avoids causing measuring error;
6, measurement component not easy to wear, workpiece surface quality is had to good protection;
7, can prevent from detecting the defective products of finding is misapplied;
8,, with automatic statistical procedure, effectively prevent that undetected product from flowing out.
Other advantages of the present invention, target and feature will be set forth to a certain extent in the following description, and to a certain extent, based on will be apparent to those skilled in the art to investigating below, or can be instructed from the practice of the present invention.Target of the present invention and other advantages can be realized and be obtained by instructions and claims below.
Accompanying drawing explanation
Accompanying drawing of the present invention is described as follows.
Fig. 1 is theory diagram of the present invention.
Fig. 2 is signal processing circuit the first example structure schematic diagram.
Fig. 3 is signal processing circuit the second example structure schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, a kind of automatic detecting machine, it includes inductance type transducer, signal processing circuit, A/D converter and display, inductance type transducer makes magnetic induction switch break-make produce electric signal by the variation of hole site, electric signal is processed by signal processing circuit, be sent to A/D converter and be converted to digital signal, digital signal is exported identification signal by display.
During use, operating personnel are placed on the product of required detection in the present invention, all the other work complete automatically by the present invention, whether inductance type transducer detects hole location qualified, detection signal is by processing and be converted to digital signal, by display, exported, research of the present invention and application can solve the weak point of comprehensive true position cubing, three coordinate measuring machine, possess again the advantage of comprehensive true position cubing, three-dimensional coordinates measurement simultaneously.This project adopts small-sized microcomputer electronic box control system to realize automatic impaction, automatically detect, automatically judge and sorting certified products and defective products, and automatically do the sign of different colours, automatically complete data processing, storage and statistic processes, effectively prevent erroneous judgement, the misuse of unacceptable product.Measuring accuracy and machine protection aspect adopt high precision pen type pressure sensor technique, and measuring accuracy reaches 0.001mm, and can effectively prevent the examined overload pressure of machine and damage.
As Fig. 2, shown in Fig. 3, signal processing circuit includes two voltage followers, oscillator, phase-sensitive detector (PSD), AC amplifier, AC/DC changeover switch and direct current amplifier, between the first output terminal of inductance type transducer and the 3rd output terminal, be connected with potentiometer R1, the first output terminal of inductance type transducer is connected with the first input end of oscillator by the first follower, the 3rd output terminal of inductance type transducer is connected with the second input end of oscillator by the second follower, the output terminal of oscillator is connected with the first output terminal of AC/DC changeover switch by phase-sensitive detector (PSD), the second output terminal of the output terminal of potentiometer R1 and inductance type transducer is connected with the second input end with the first input end of AC amplifier with the 3rd resistance R 3 by the second resistance R 2 respectively, the output terminal of AC amplifier is connected with the second input end of AC/DC changeover switch, the first output terminal of ac-dc converter is connected with the second input end with direct current amplifier first input end with R5 by resistance R 4 respectively with the second output terminal, the output terminal of direct current amplifier is connected with A/D converter.
Voltage signal after processing enters the AC amplifier of amplification circuits further after voltage amplification, just by interchange, turn DC circuit voltage is become to low-voltage DC, because voltage is lower so amplified and to be obtained required voltage signal by direct current amplifier again, export to A/D converter and simulating signal is converted to digital signal on display screen, reflects.
Described inductance type transducer can be one, can be also four.According to the quantity in required testing product hole and designed, designed, hole is corresponding one by one to inductance type transducer.
Described display is double-colored light control alarm device, and green light represents that holes of products position is qualified, and when red represents that holes of products position is defective.Certainly, display also can carry out notifier's operator substandard product with other alarm method.
Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement technical scheme of the present invention, and not departing from aim and the scope of the technical program, it all should be encompassed in the middle of claim scope of the present invention.
Claims (4)
1. automatic detecting machine, it is characterized in that: it includes inductance type transducer, signal processing circuit, A/D converter and display, inductance type transducer makes magnetic induction switch break-make produce electric signal by the variation of hole site, electric signal is processed by signal processing circuit, be sent to A/D converter and be converted to digital signal, digital signal is exported identification signal by display;
Signal processing circuit includes two voltage followers, oscillator, phase-sensitive detector (PSD), AC amplifier, AC/DC changeover switch and direct current amplifier, between the first output terminal of inductance type transducer and the 3rd output terminal, be connected with potentiometer R1, the first output terminal of inductance type transducer is connected with the first input end of oscillator by the first follower, the 3rd output terminal of inductance type transducer is connected with the second input end of oscillator by the second follower, the output terminal of oscillator is connected with the first output terminal of AC/DC changeover switch by phase-sensitive detector (PSD), the second output terminal of the output terminal of potentiometer R1 and inductance type transducer is connected with the second input end with the first input end of AC amplifier with the 3rd resistance R 3 by the second resistance R 2 respectively, the output terminal of AC amplifier is connected with the second input end of AC/DC changeover switch, the first output terminal of AC/DC changeover switch is connected with the second input end with direct current amplifier first input end with R5 by resistance R 4 respectively with the second output terminal, the output terminal of direct current amplifier is connected with A/D converter.
2. automatic detecting machine as claimed in claim 1, is characterized in that: described inductance type transducer is one.
3. automatic detecting machine as claimed in claim 1, is characterized in that: described inductance type transducer is four.
4. the automatic detecting machine as described in claim 1,2 or 3, is characterized in that: described display is double-colored light control alarm device, and green light represents that holes of products position is qualified, and when red represents that holes of products position is defective.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110324863.0A CN102506677B (en) | 2011-10-24 | 2011-10-24 | Automatic detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110324863.0A CN102506677B (en) | 2011-10-24 | 2011-10-24 | Automatic detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102506677A CN102506677A (en) | 2012-06-20 |
| CN102506677B true CN102506677B (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110324863.0A Active CN102506677B (en) | 2011-10-24 | 2011-10-24 | Automatic detector |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348814A (en) * | 1979-07-24 | 1982-09-14 | Finike Italiana Marposs, S.P.A. | Gauge for checking linear sizes of mechanical parts |
| CN2694226Y (en) * | 2004-04-23 | 2005-04-20 | 广东鸿图科技股份有限公司 | High-precision flatness measuring instrument |
| CN101221035A (en) * | 2007-01-08 | 2008-07-16 | 鸿富锦精密工业（深圳）有限公司 | Detector and its detection board |
-
2011
- 2011-10-24 CN CN201110324863.0A patent/CN102506677B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348814A (en) * | 1979-07-24 | 1982-09-14 | Finike Italiana Marposs, S.P.A. | Gauge for checking linear sizes of mechanical parts |
| CN2694226Y (en) * | 2004-04-23 | 2005-04-20 | 广东鸿图科技股份有限公司 | High-precision flatness measuring instrument |
| CN101221035A (en) * | 2007-01-08 | 2008-07-16 | 鸿富锦精密工业（深圳）有限公司 | Detector and its detection board |
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| Publication number | Publication date |
|---|---|
| CN102506677A (en) | 2012-06-20 |
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