CN213688283U - Coating thickness detection device - Google Patents
Coating thickness detection device Download PDFInfo
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- CN213688283U CN213688283U CN202022763331.4U CN202022763331U CN213688283U CN 213688283 U CN213688283 U CN 213688283U CN 202022763331 U CN202022763331 U CN 202022763331U CN 213688283 U CN213688283 U CN 213688283U
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Abstract
The application relates to a coating thickness detection device, it includes the host computer, is provided with the connector on the host computer, and threaded connection has the connecting wire on the connector, and the one end that the connector was kept away from to the connecting wire is connected with the probe, and the bilateral symmetry of probe is provided with the spring parallel with the probe axis, and first pressure sensor and second pressure sensor are connected respectively to two springs, and the tip of first pressure sensor and the tip of second pressure sensor all exceed the tip of probe. The output ends of the first pressure sensor and the second pressure sensor are both connected with the control circuit, the output end of the control circuit is connected with the prompting device, and when the first pressure sensor outputs a first pressure signal and the second pressure sensor outputs a second pressure signal to the control circuit, the control circuit controls the prompting device to send out a prompting signal. The method and the device have the effect of being capable of knowing whether the probe is perpendicular or nearly perpendicular to the end face of the measuring piece.
Description
Technical Field
The application relates to the field of coating detection equipment technology, in particular to a coating thickness detection device.
Background
The coating thickness detection device can nondestructively measure the thickness of the non-magnetic coating on the magnetic metal substrate and the thickness of the non-conductive coating on the non-magnetic metal substrate, and has the characteristics of small measurement error, high reliability, good stability, simple and convenient operation and the like, so the coating thickness detection device is widely applied to the detection fields of manufacturing industry, metal processing industry, chemical industry, commodity inspection and the like.
In the related art, a patent document with publication number CN208902083U discloses an anticorrosive coating thickness detection device, which includes a casing, a display screen is arranged on the casing, a connector is arranged on the casing, a connecting line is inserted on the connector, and a probe is arranged at one end of the extending line away from the connector; the shell is provided with an accommodating cavity, one side of the accommodating cavity facing the display screen is provided with an opening, the opening of the accommodating cavity is provided with a sealing cover, and the sealing cover is provided with a button; the sealing cover is hinged with the shell; the holding cavity is internally provided with a fixing component which comprises a fixing claw arranged at the bottom of the holding cavity.
In view of the above-mentioned related art, the inventor believes that when the probe is in contact with the measuring member for measurement, it is impossible to know whether the end surfaces of the probe and the measuring member are perpendicular or nearly perpendicular, and thus the measured data may have errors.
SUMMERY OF THE UTILITY MODEL
Whether the terminal surface of knowing probe and measuring part is perpendicular when making probe and measuring part contact measure, this application provides a coating thickness detection device.
The application provides a coating thickness detection device adopts following technical scheme:
the utility model provides a coating thickness detection device, includes the host computer, be provided with the connector on the host computer, threaded connection has the connecting wire on the connector, the one end that the connector was kept away from to the connecting wire is connected with the probe, the bilateral symmetry of probe is provided with the spring parallel with the probe axis, two first pressure sensor and second pressure sensor are connected respectively to the spring, the tip of first pressure sensor and second pressure sensor's tip all exceed the tip of probe, first pressure sensor with control circuit is all connected to second pressure sensor's output, control circuit's output is connected with the suggestion device, when first pressure sensor exports first pressure signal and second pressure sensor exports second pressure signal to control circuit, control circuit control suggestion device sends out the suggestion signal.
Through adopting above-mentioned technical scheme, when using the probe to remove measurement thickness, if the first pressure sensor and the second pressure sensor of probe both sides all are extrudeed, then suggestion device can send cue signal, and when suggestion device sent cue signal, it is perpendicular or close perpendicular to explain the terminal surface of probe and measuring part, has reduced because the probe and the measuring part terminal surface is not close the laminating and is measured and lead to the condition that measured data has the error.
Optionally, the control circuit includes:
the first comparison unit is connected with the first pressure sensor and used for receiving a first pressure signal and outputting a first comparison signal when the first pressure signal is higher than a preset first reference signal;
the second comparison unit is connected with the second pressure sensor and used for receiving a second pressure signal and outputting a second comparison signal when the second pressure signal is higher than a preset second reference signal;
the judging unit is connected with the first comparing unit and the second comparing unit and used for receiving the first comparing signal and the second comparing signal and outputting a driving signal when receiving the first comparing signal and the second comparing signal simultaneously;
and the driving unit is connected with the judging unit and the prompting device and used for receiving the driving signal, and when the driving signal is received, the prompting device is electrified to send out a prompting signal.
Through adopting above-mentioned technical scheme, when first pressure sensor touches the measuring part, send first pressure signal, first pressure signal is received by first comparing unit, and when first pressure signal was higher than the first reference signal of predetermineeing, first comparing unit output first comparison signal. When the second pressure sensor contacts the measuring piece, a second pressure signal is sent out and received by the second comparison unit, and when the second pressure signal is higher than a preset second reference signal, the second comparison unit outputs a second comparison signal. When the judging unit receives the first comparison signal and the second comparison signal at the same time, the judging unit outputs a driving signal, the driving signal controls the driving unit to be electrified, and the prompting device is electrified to send out a prompting signal at the moment.
Optionally, the first comparing unit includes:
the reference voltage generating circuit comprises a first resistor and a second resistor, wherein one end of the first resistor is connected to a first direct current, and the other end of the first resistor is connected with the second resistor in series and then grounded; the first reference signal is generated between the first resistor and the second resistor;
the non-inverting input end of the first comparator is connected to the output end of the first pressure sensor, the inverting input end of the first comparator is connected to the first reference signal, and the output end of the first comparator outputs the first comparison signal.
Through adopting above-mentioned technical scheme, with first pressure signal input to the syntropy input of first comparator through the output of first pressure sensor, compare with first reference signal, if the voltage value of first pressure signal is greater than the voltage value of first reference signal, then the output of first comparator can output first comparison signal.
Optionally, the second comparing unit includes:
the reference voltage generating circuit comprises a third resistor and a fourth resistor, wherein one end of the third resistor is connected to the first direct current, and the other end of the third resistor is connected with the fourth resistor in series and then grounded; the second reference signal is generated between the third resistor and the fourth resistor;
the non-inverting input end of the second comparator is connected with the output end of the second pressure sensor, the inverting input end of the second comparator is connected with the second reference signal, and the output end of the second comparator outputs a second comparison signal.
By adopting the technical scheme, the second pressure signal is input to the equidirectional input end of the second comparator through the output end of the second pressure sensor and is compared with the second reference signal, and if the voltage value of the second pressure signal is greater than that of the second reference signal, the output end of the second comparator can output the second comparison signal.
Optionally, the determining unit includes:
and the AND gate is provided with a first input end, a second input end and an output end, the first input end is connected with the output end of the first comparator, the second input end is connected with the output end of the second comparator, and the output end outputs the driving signal.
By adopting the technical scheme, if the first input end receives the first comparison signal, the voltage value of the first pressure signal is larger than that of the first reference signal, so that the first sensor is extruded. If the second input end receives the second comparison signal, the voltage value of the second pressure signal is larger than that of the second reference signal, and therefore the second sensor is extruded. When the output end outputs a driving signal, the first sensor and the second sensor are extruded, and then the probe is perpendicular to the end face of the measuring piece.
Optionally, the driving unit includes:
and the base electrode of the NPN triode is connected with the output end of the AND gate, the emitter electrode of the NPN triode is grounded through a fifth resistor, and the second direct current is connected with the prompting device and the collector electrode in series.
By adopting the technical scheme, the driving signal is transmitted to the base level, so that the NPN triode is conducted, the prompting device is electrified, and the prompting device can send a prompting signal to prompt a worker that the probe is vertical to the end face of the measuring part.
Optionally, the outer surface of the probe is sleeved with a fixed ring block, and the lower end face of the fixed ring block is connected with the spring.
Through adopting above-mentioned technical scheme, when the terminal surface wearing and tearing of probe lead to the probe at ordinary times, need change the connecting wire because the spring is not lug connection on the probe, has made things convenient for the change of connecting wire.
The prompting device is an indicator light, and the indicator light is arranged on the side wall of the fixed ring block.
By adopting the technical scheme, when the voltage value of the first pressure signal is greater than that of the first reference signal and the voltage value of the second pressure signal is greater than that of the second reference signal, the indicator lamp is turned on.
Optionally, a sleeve is sleeved on the outer surface of the part, close to the fixed ring block, of the spring, and the sleeve is connected to the lower end face of the fixed ring block.
Through adopting above-mentioned technical scheme, the radial shake of spring has been avoided in telescopic setting, and then has avoided first pressure sensor and second pressure sensor's terminal surface can not laminate the terminal surface of measuring part completely and cause the measurement inaccurate.
Optionally, a groove is formed in the circumferential direction at a position where the side wall of the probe is flush with the upper end face of the fixing ring block, and a snap spring is arranged in the groove.
By adopting the technical scheme, the clamp spring is arranged to prevent the fixed ring block from moving axially relative to the probe, and if the fixed ring block moves on the probe, a first pressure signal sent by the first pressure sensor is possibly not greater than a first reference signal or a second pressure signal sent by the second pressure sensor is possibly not greater than a second reference signal, so that the prompting device does not send a prompting signal.
In summary, the present application includes at least one of the following beneficial technical effects:
whether the prompting device sends a prompting signal can be used for judging whether the probe is vertical or nearly vertical to the end face of the measuring piece, so that the inaccuracy of measured data caused by the fact that the probe is not close to the end face of the measuring piece to be attached for measurement is avoided.
Drawings
FIG. 1 is a schematic structural diagram of a coating thickness detection apparatus according to an embodiment of the present application;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a circuit diagram of a control circuit according to an embodiment of the present application.
Description of reference numerals: 1. a host; 2. a connector; 3. a connecting wire; 4. a probe; 5. a spring; 6. a first pressure sensor; 7. a second pressure sensor; 8. a fixed ring block; 9. an indicator light; 10. a sleeve; 11. a groove; 12. a clamp spring; 13. a first comparing unit; 14. a second comparing unit; 15. a judgment unit; 16. a drive unit.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses a coating thickness detection device. Referring to fig. 1, the coating thickness detection device comprises a host 1, the host 1 is a machine with a display function, a connector 2 is arranged on the host 1, the cross section of the connector 2 is circular, threads are arranged outside the connector 2, and the connector 2 and the host 1 are integrally arranged. The connecting wire 3 is connected to the connecting head 2 through the threads, and when the connecting wire 3 needs to be replaced, the connecting wire 3 and the connecting head 2 are only required to be cancelled in threaded fit, so that the connecting wire 3 is convenient to disassemble and assemble. One end of the connecting wire 3, which is far away from the connector 2, is connected with a probe 4, and the probe 4 is used for contacting with the end face of the measuring part to measure the thickness of the coating.
Referring to fig. 2, the outer wall of the probe 4 is sleeved with a fixed ring block 8, and the cross section of the fixed ring block 8 is a circular ring, so that the fixed ring block 8 and the probe 4 are coaxially arranged, and the lower end face of the fixed ring block 8 is higher than the lower end face of the probe 4. The side wall of the fixed ring block 8 is provided with a prompting device, the prompting device is an indicator light 9 in some examples, the prompting device is a horn in some examples, and the prompting device is taken as the indicator light 9 in the embodiment for description. The lower end surface of the fixed ring block 8 is symmetrically connected with the spring 5, and the axis of the spring 5 is parallel to the axis of the probe 4. The outer surface cover that spring 5 is close to the part of retaining ring piece 8 is equipped with sleeve 10, and the up end of sleeve 10 laminates completely with the lower terminal surface of retaining ring piece 8, and radial shake can not take place when sleeve 10's setting makes spring 5 compressed. One end of one spring 5, which is far away from the fixed ring block 8, is connected with a first pressure sensor 6, one end of the other spring 5, which is far away from the fixed ring block 8, is connected with a second pressure sensor 7, and the models of the first pressure sensor 6 and the second pressure sensor 7 are the same. When the spring 5 is in a natural state, the lower end faces of the first pressure sensor 6 and the second pressure sensor 7 are flush, and the lower end faces of the first pressure sensor 6 and the second pressure sensor 7 exceed the lower end face of the probe 4. A groove 11 is circumferentially formed in the side wall of the probe 4 and is parallel to and level with the upper end face of the fixed ring block 8, a clamp spring 12 is placed in the groove 11, and the clamp spring 12 is arranged to prevent the fixed ring block 8 from moving on the outer surface of the probe 4 when being pressed by the spring 5.
Referring to fig. 3, the control circuit includes: the first comparing unit 13 is connected with the first pressure sensor 6, and is used for receiving the first pressure signal and outputting a first comparing signal when the first pressure signal is higher than a preset first reference signal; the second comparison unit 14 is connected with the second pressure sensor 7 and is used for receiving a second pressure signal and outputting a second comparison signal when the second pressure signal is higher than a preset second reference signal; the judging unit 15 is connected with the first comparing unit 13 and the second comparing unit 14, and is used for receiving the first comparing signal and the second comparing signal and outputting a driving signal when receiving the first comparing signal and the second comparing signal simultaneously; and the driving unit 16 is connected with the judging unit 15 and the prompting device and is used for receiving the driving signal, and when the driving signal is received, the prompting device is electrified to send out a prompting signal.
The first comparing unit 13 includes: the reference voltage generating circuit comprises a first resistor R1 and a second resistor R2, wherein one end of the first resistor R1 is connected to a first direct current V1, and the other end of the first resistor R3526 is connected with the second resistor R2 in series and then grounded; wherein, a first reference signal is generated between the first resistor R1 and the second resistor R2; a first comparator a1 having a non-inverting input terminal, an inverting input terminal and an output terminal, the non-inverting input terminal of the first comparator a1 being connected to the output terminal of the first pressure sensor 6, the inverting input terminal of the first comparator a1 being connected to the first reference signal, the output terminal of the first comparator a1 outputting the first comparison signal.
The second comparing unit 14 includes: the reference voltage generating circuit comprises a third resistor R3 and a fourth resistor R4, wherein one end of the third resistor R3 is connected to the first direct current V1, and the other end of the third resistor R3526 is connected with the fourth resistor R4 in series and then grounded; a second reference signal is generated between the third resistor R3 and the fourth resistor R4; a second comparator a2 having a non-inverting input terminal, an inverting input terminal and an output terminal, the non-inverting input terminal of the second comparator a2 being connected to the output terminal of the second pressure sensor 7, the inverting input terminal of the second comparator a2 being connected to the second reference signal, and the output terminal of the second comparator a2 outputting the second comparison signal.
The judgment unit 15 includes: AND the AND gate AND is provided with a first input end, a second input end AND an output end, wherein the first input end is connected with the output end of the first comparator A1, the second input end is connected with the output end of the second comparator A2, AND the output end outputs the driving signal.
The drive unit 16 includes: AND an NPN triode Q, the base electrode of which is connected with the output end of the AND gate AND, the emitter electrode of which is grounded through a fifth resistor R5, AND a second direct current V2 which is connected with the prompting device AND the collector electrode in series. The control circuit is arranged on a circuit board, the circuit board is arranged in a fixed ring block 8 (see figure 2), and a button cell is arranged in the fixed ring block 8 to supply power to the circuit board. The first resistor R1, the second resistor R2, the third resistor R3, the fourth resistor R4, and the fifth resistor R5 may be resistors, or may be electronic elements equivalent to resistors.
The control circuit of the embodiment of the application has the technical effects that: the first pressure sensor 6 is pressed to transmit a first pressure signal to the first comparator a1 to be compared with the first reference signal, and if the voltage value of the first pressure signal is greater than the voltage value of the first reference signal, the output end of the first comparator a1 outputs a first comparison signal, and the first comparison signal is at a high level. The second pressure sensor 7 is pressed to transmit a second pressure signal to the second comparator a2 to be compared with the second reference signal, if the voltage value of the second pressure signal is greater than the voltage value of the second reference signal, the output end of the second comparator a2 outputs a second comparison signal, and the second comparison signal is at a high level. If the first input end AND the second input end of the AND gate AND are both in high level, the output end of the AND gate AND outputs a driving signal, AND the driving signal is in high level. The driving signal drives the NPN triode Q to conduct, and the indicator light 9 is powered on.
The implementation principle of the coating thickness detection device in the embodiment of the application is as follows: when the probe 4 contacts the end face of the measuring piece, the first pressure sensor 6 and the second pressure sensor 7 are squeezed, if the indicator lamp 9 on the fixed ring block 8 is lightened, the probe 4 is perpendicular or nearly perpendicular to the end face of the measuring piece, and then the coating thickness of the measuring piece is measured.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A coating thickness detection device is characterized in that: the device comprises a host (1), wherein a connector (2) is arranged on the host (1), a connecting wire (3) is connected to the connector (2) in a threaded manner, one end, far away from the connector (2), of the connecting wire (3) is connected with a probe (4), springs (5) parallel to the axis of the probe (4) are symmetrically arranged on two sides of the probe (4), the two springs (5) are respectively connected with a first pressure sensor (6) and a second pressure sensor (7), the end part of the first pressure sensor (6) and the end part of the second pressure sensor (7) exceed the end part of the probe (4), the output ends of the first pressure sensor (6) and the second pressure sensor (7) are respectively connected with a control circuit, the output end of the control circuit is connected with a prompt device, and when the first pressure sensor (6) outputs a first pressure signal and the second pressure sensor (7) outputs a second pressure signal to the control circuit, the control circuit controls the prompting device to send out a prompting signal.
2. The coating thickness detection apparatus according to claim 1, characterized in that: the control circuit includes:
the first comparison unit (13) is connected with the first pressure sensor (6) and used for receiving the first pressure signal and outputting a first comparison signal when the first pressure signal is higher than a preset first reference signal;
the second comparison unit (14) is connected with the second pressure sensor (7) and used for receiving a second pressure signal and outputting a second comparison signal when the second pressure signal is higher than a preset second reference signal;
the judging unit (15) is connected with the first comparing unit (13) and the second comparing unit (14) and used for receiving the first comparing signal and the second comparing signal and outputting a driving signal when receiving the first comparing signal and the second comparing signal simultaneously;
and the driving unit (16) is connected with the judging unit (15) and the prompting device and is used for receiving the driving signal, and when the driving signal is received, the prompting device is electrified to send out a prompting signal.
3. The coating thickness detection apparatus according to claim 2, characterized in that: the first comparison unit (13) comprises:
the reference voltage generating circuit comprises a first resistor R1 and a second resistor R2, wherein one end of the first resistor R1 is connected to a first direct current V1, and the other end of the first resistor R3526 is connected with the second resistor R2 in series and then grounded; wherein the first reference signal is generated between a first resistor R1 and a second resistor R2;
a first comparator a1 having a non-inverting input terminal, an inverting input terminal and an output terminal, the non-inverting input terminal of the first comparator a1 being connected to the output terminal of the first pressure sensor (6), the inverting input terminal of the first comparator a1 being connected to the first reference signal, the output terminal of the first comparator a1 outputting the first comparison signal.
4. The coating thickness detection apparatus according to claim 2, characterized in that: the second comparison unit (14) comprises:
the reference voltage generating circuit comprises a third resistor R3 and a fourth resistor R4, wherein one end of the third resistor R3 is connected to a first direct current V1, and the other end of the third resistor R3526 is connected with the fourth resistor R4 in series and then grounded; wherein the second reference signal is generated between a third resistor R3 and a fourth resistor R4;
a second comparator A2 having a non-inverting input terminal, an inverting input terminal and an output terminal, the non-inverting input terminal of the second comparator A2 being connected to the output terminal of the second pressure sensor (7), the inverting input terminal of the second comparator A2 being connected to the second reference signal, the output terminal of the second comparator A2 outputting the second comparison signal.
5. The coating thickness detection apparatus according to claim 2, characterized in that: the judging unit (15) includes:
AND the AND gate AND is provided with a first input end, a second input end AND an output end, wherein the first input end is connected with the output end of the first comparator A1, the second input end is connected with the output end of the second comparator A2, AND the output end outputs the driving signal.
6. The coating thickness detection apparatus according to claim 2, characterized in that: the drive unit (16) comprises:
AND an NPN triode Q, the base electrode of which is connected with the output end of the AND gate AND, the emitter electrode of which is grounded through a fifth resistor R5, AND a second direct current V2 which is connected with the prompting device AND the collector electrode in series.
7. The coating thickness detection apparatus according to claim 1, characterized in that: the outer surface of the probe (4) is sleeved with a fixed ring block (8), and the lower end face of the fixed ring block (8) is connected with the spring (5).
8. The coating thickness detection apparatus according to claim 7, characterized in that: the prompting device is an indicator lamp (9), and the indicator lamp (9) is arranged on the side wall of the fixed ring block (8).
9. The coating thickness detection apparatus according to claim 7, characterized in that: the outer surface of the part, close to the fixed ring block (8), of the spring (5) is sleeved with a sleeve (10), and the sleeve (10) is connected to the lower end face of the fixed ring block (8).
10. The coating thickness detection apparatus according to claim 7, characterized in that: a groove (11) is formed in the side wall of the probe (4) and the upper end face of the fixed ring block (8) in the parallel and level mode in the circumferential direction, and a clamp spring (12) is arranged in the groove (11).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022763331.4U CN213688283U (en) | 2020-11-25 | 2020-11-25 | Coating thickness detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022763331.4U CN213688283U (en) | 2020-11-25 | 2020-11-25 | Coating thickness detection device |
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| CN213688283U true CN213688283U (en) | 2021-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697963A (en) * | 2023-08-04 | 2023-09-05 | 郯城县鹏程印务有限公司 | Printing ink thickness detector and detection method |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116697963A (en) * | 2023-08-04 | 2023-09-05 | 郯城县鹏程印务有限公司 | Printing ink thickness detector and detection method |
| CN116697963B (en) * | 2023-08-04 | 2023-10-10 | 郯城县鹏程印务有限公司 | Printing ink thickness detector and detection method |
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