CN214471762U - High accuracy button detection device based on LabVIEW platform - Google Patents
High accuracy button detection device based on LabVIEW platform Download PDFInfo
- Publication number
- CN214471762U CN214471762U CN202120527979.3U CN202120527979U CN214471762U CN 214471762 U CN214471762 U CN 214471762U CN 202120527979 U CN202120527979 U CN 202120527979U CN 214471762 U CN214471762 U CN 214471762U
- Authority
- CN
- China
- Prior art keywords
- labview platform
- displacement mechanism
- displacement
- piece
- detection device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a high-precision key detection device based on a LabVIEW platform, which comprises a product tool for clamping a piece to be detected, a displacement mechanism positioned above the piece to be detected, a sensor assembly and an industrial personal computer comprising the LabVIEW platform; the sensor assembly comprises a laser sensor and a pull pressure sensor, the pull pressure sensor is arranged at the bottom of the displacement mechanism and is in contact with the piece to be tested during testing, and the pressure applied to the piece to be tested is tested; the laser sensor is used for measuring the length of the driving displacement of the displacement mechanism. The utility model discloses a servo motor slowly drives and draws pressure sensor to carry out the product and push down the test, can once only obtain the product and push down the curve, shows test product break-make characteristic, and measurement accuracy is high, and measuring result is accurate direct, improves measurement of efficiency, guarantees product quality to the device a key starts the test, and convenient operation easily learns.
Description
Technical Field
The utility model relates to an automobile manufacturing field product button function detects, especially relates to a high accuracy button detection device based on LabVIEW platform.
Background
With the development of the automobile industry, the safety and reliability of automobiles are always the problem that consumers and manufacturers attach great importance to, and the quality of the functions of automobile part keys is directly related to the safety problems of automobiles, for example, the quality of the functions of the function keys of a steering wheel, the media keys of a central control area and the rearview mirror adjusting keys seriously affect the safety and stability of the automobiles, so that the detection of the functions of the keys of the automobile parts becomes an essential link for the qualified detection of the parts. At present, the button function detects when the button pushes down to switch on the signal and is difficult to accurately snatch, ordinary measurement reads the scale position when the button switches on through hand scale, it switches on to shake a little product down when the button closes on to switch on, it cuts off to shake a little product upwards again, the switch-on point that records like this often can't accurately obtain the switch-on position in a within range, and such detection method detection efficiency is low, artifical detection cost is high, detect the function singleness, can't directly obtain the concrete data of product, be difficult to reach reliable assurance to the quality of product simultaneously.
SUMMERY OF THE UTILITY MODEL
In order to solve the weak point that above-mentioned technique exists, the utility model provides a high accuracy button detection device based on LabVIEW platform.
In order to solve the technical problem, the utility model discloses a technical scheme is: a high-precision key detection device based on a LabVIEW platform comprises a product tool for clamping a piece to be detected, a displacement mechanism positioned above the piece to be detected, a sensor assembly and an industrial personal computer comprising the LabVIEW platform;
the sensor assembly comprises a laser sensor and a pull pressure sensor, the pull pressure sensor is arranged at the bottom of the displacement mechanism and is in contact with the piece to be tested during testing, and the pressure applied to the piece to be tested is tested; the laser sensor is used for measuring the length of the driving displacement of the displacement mechanism; signals measured by the tension pressure sensor and signals measured by the laser sensor are transmitted to a LabVIEW platform for analysis and processing;
and a collection module for collecting pressure and displacement, a motion control module for controlling a displacement mechanism and an algorithm analysis module for calculating the displacement of a pressure critical point and a trigger point are set up in the LabVIEW platform.
Furthermore, the laser sensor is fixedly connected to the device bracket on the side surface of the displacement mechanism and is relatively independent from the displacement mechanism; a blocking piece is arranged right below the laser sensor, so that laser can irradiate on the blocking piece, and the blocking piece is fixedly connected to the moving part of the displacement mechanism.
Furthermore, a balancing weight is fixedly connected to a moving part of the displacement mechanism and is positioned above the pull pressure sensor.
Further, the displacement mechanism comprises a moving part for fixing the blocking piece and the balancing weight and a servo motor for driving the moving part to move, and the servo motor is fixedly connected to the device support.
Furthermore, the acquisition module comprises an acquisition board card, acquired signals can be transmitted to the industrial personal computer for analysis and operation through the amplification circuit, the acquisition mode of the acquisition board card is differential, and the sampling type is voltage.
Furthermore, the motion control module is electrically connected with the servo motor, the motion control module outputs pulses to control the operation of the servo motor, and the LabVIEW platform performs coordinate control by converting specific position coordinates into pulses corresponding to the operation of the motor.
Further, the displacement and pressure acquisition is analog quantity acquisition, after the whole acquisition process is finished, the acquired displacement and pressure are used for calculating the pressure and displacement of the piece to be measured at a specific position by utilizing an algorithm analysis module of a LabVIEW platform, and the waveform of a calculation result is displayed.
The utility model discloses a servo motor slowly drives and draws pressure sensor to carry out the product and push down the test, can once only obtain the product and push down the curve, shows test product break-make characteristic, and measurement accuracy is high, and measuring result is accurate direct, improves measurement of efficiency, guarantees product quality to the device a key starts the test, and convenient operation easily learns.
Drawings
Fig. 1 is a schematic view of the overall structure of the device.
FIG. 2 is a graph showing the test results of the present apparatus.
Fig. 3 is a flow chart of the working method of the device.
In the figure: 1. a servo motor; 2. a laser sensor; 3. a moving member; 4. a baffle plate; 5. a balancing weight; 6. a pull pressure sensor; 7. a piece to be tested; 8. and (5) product tooling.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The high-precision key detection device based on the LabVIEW platform as shown in FIG. 1 comprises a product tool 8 for clamping a piece to be detected 7, a displacement mechanism positioned above the piece to be detected, a sensor assembly and an industrial personal computer comprising the LabVIEW platform;
the sensor assembly comprises a laser sensor 2 and a tension pressure sensor 6, wherein the laser sensor adopts a commercial Schenkian laser displacement sensor, and the Schenkian laser displacement sensor has the advantages of high measurement precision, strong anti-interference capability, high stability and the like. The tension and pressure sensor is a stretchable and compressible S-shaped dual-purpose force sensor, and has the advantages of high precision, low price, mature product technology and wide application.
The pull pressure sensor is arranged at the bottom of the displacement mechanism and is in contact with the piece to be tested during testing, and the pressure on the piece to be tested is tested; the laser sensor is used for measuring the length of the driving displacement of the displacement mechanism; signals measured by the tension pressure sensor and signals measured by the laser sensor are transmitted to a LabVIEW platform for analysis and processing;
the laser sensor is fixedly connected to the device bracket on the side surface of the displacement mechanism and is relatively independent from the displacement mechanism; the laser displacement measuring device is characterized in that a blocking piece 4 is arranged right below the laser sensor, laser can irradiate on the blocking piece, the blocking piece is fixedly connected to a moving part of the displacement mechanism, when the moving part of the displacement mechanism moves downwards, the blocking piece moves downwards along with the moving part of the displacement mechanism, and the position of the laser sensor is unchanged, so that the displacement length of the displacement mechanism can be measured through the laser.
The moving part of the displacement mechanism is fixedly connected with a balancing weight 5 which is positioned above the tension pressure sensor. The balancing weight is used for pushing down the product and provides Z axle direction pressure, and when pressure was greater than balancing weight, the balancing weight can produce for the displacement that makes progress of Z axle simultaneously, and this come-up action also plays the protection and draws pressure sensor because of the too big effect of damaging of pressure.
The displacement mechanism comprises a moving part 3 for fixing the blocking piece and the balancing weight and a servo motor 1 for driving the moving part to move, and the servo motor is fixedly connected to the device support. In the device, the servo motor needs to drive the moving part to move linearly, so that a commercially available linear motor can be selected.
And a collection module for collecting pressure and displacement, a motion control module for controlling a displacement mechanism and an algorithm analysis module for calculating the displacement of a pressure critical point and a trigger point are set up in the LabVIEW platform.
The acquisition module comprises an acquisition board card, a porphyry PCI-1710 analog acquisition card is selected in the embodiment, the acquired signal can be transmitted to an industrial personal computer for analysis and operation through an amplifying circuit, the acquisition mode of the acquisition board card is differential, and the sampling type is voltage.
The motion control module is a de-sublimation motion control card AMP-204C, the motion control module is electrically connected with the servo motor 1, the LabVIEW platform drives the motion control module inside the LabVIEW platform to output pulses to control the operation of the servo motor, and the LabVIEW platform performs coordinate control by converting specific position coordinates into pulses corresponding to the operation of the motor.
The displacement and pressure acquisition is analog quantity acquisition, after the whole acquisition process is finished, the acquired displacement and pressure are subjected to function filtering, derivation, calculation of a rising edge and a falling edge by using an algorithm analysis module of a LabVIEW platform to obtain the pressure and the displacement of the piece to be detected at a specific position, and the waveform display is performed on the calculation result.
The working method of the high-precision key detection device based on the LabVIEW platform comprises the following steps as shown in FIG. 3:
initializing a LabVIEW platform, continuing subsequent actions after the initialization is successful, and otherwise, exiting the program;
step two, placing the piece to be tested 7 on a product tool 8, testing a key starting device through a device of an industrial personal computer, and otherwise, waiting and returning to the step one;
driving a servo motor by a motion control module, driving a moving part 3 of a displacement mechanism to move downwards by a servo motor 1, and acquiring a pulling pressure signal value when a pulling pressure sensor 6 contacts a piece to be detected and acquiring a relative displacement signal value by a laser sensor 2 by walking to a preset pressing position;
step four, judging whether the experiment is finished, transmitting the pulling pressure signal value and the displacement signal value to the acquisition board card when the experiment is finished, and performing data processing and displaying a test result on a LabVIEW platform through an algorithm analysis module, wherein the result is shown in FIG. 2; otherwise, returning to the step three;
and step five, storing the data, and driving the servo motor to return to the original point by the motion control module to prepare for the next work.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (7)
1. The utility model provides a high accuracy button detection device based on LabVIEW platform which characterized in that: the device comprises a product tool (8) for clamping a piece to be detected (7), a displacement mechanism positioned above the piece to be detected, a sensor assembly and an industrial personal computer comprising a LabVIEW platform;
the sensor assembly comprises a laser sensor (2) and a pulling pressure sensor (6), the pulling pressure sensor is arranged at the bottom of the displacement mechanism and is in contact with a piece to be tested during testing; the laser sensor is used for measuring the length of the driving displacement of the displacement mechanism; signals measured by the tension pressure sensor and signals measured by the laser sensor are transmitted to a LabVIEW platform for analysis and processing;
and a collection module for collecting pressure and displacement, a motion control module for controlling a displacement mechanism and an algorithm analysis module for calculating the displacement of a pressure critical point and a trigger point are set up in the LabVIEW platform.
2. The LabVIEW platform-based high-precision key detection device as claimed in claim 1, wherein: the laser sensor is fixedly connected to the device bracket on the side surface of the displacement mechanism and is relatively independent from the displacement mechanism; a blocking piece (4) is arranged right below the laser sensor and fixedly connected to the moving part of the displacement mechanism.
3. The LabVIEW platform-based high-precision key detection device as claimed in claim 2, wherein: and a moving part of the displacement mechanism is fixedly connected with a balancing weight (5), and the balancing weight is positioned above the tension and pressure sensor.
4. The LabVIEW platform-based high-precision key detection device as claimed in claim 3, wherein: the displacement mechanism comprises a moving part (3) for fixing the blocking piece and the balancing weight and a servo motor (1) for driving the moving part to move, and the servo motor is fixedly connected to the device support.
5. The LabVIEW platform-based high-precision key detection device as claimed in claim 1 or 4, wherein: the acquisition module comprises an acquisition board card, acquired signals can be transmitted to the industrial personal computer for analysis and operation through the amplification circuit, the acquisition mode of the acquisition board card is differential, and the sampling type is voltage.
6. The LabVIEW platform-based high-precision key detection device as claimed in claim 5, wherein: the motion control module is electrically connected with the servo motor (1), the motion control module controls output pulses to control the operation of the servo motor, and the LabVIEW platform performs coordinate control by converting specific position coordinates into pulses corresponding to the operation of the motor.
7. The LabVIEW platform-based high-precision key detection device as claimed in claim 6, wherein: the collected displacement and pressure are used for solving the pressure and displacement of the piece to be measured at a specific position by utilizing an algorithm analysis module of a LabVIEW platform, and the waveform of a calculation result is displayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527979.3U CN214471762U (en) | 2021-03-11 | 2021-03-11 | High accuracy button detection device based on LabVIEW platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120527979.3U CN214471762U (en) | 2021-03-11 | 2021-03-11 | High accuracy button detection device based on LabVIEW platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214471762U true CN214471762U (en) | 2021-10-22 |
Family
ID=78155235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120527979.3U Active CN214471762U (en) | 2021-03-11 | 2021-03-11 | High accuracy button detection device based on LabVIEW platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214471762U (en) |
-
2021
- 2021-03-11 CN CN202120527979.3U patent/CN214471762U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8908194B2 (en) | Compensation of measurement errors due to dynamic deformations in a coordinate measuring machine | |
| CN201716191U (en) | Automobile hand brake detector | |
| CN107036517B (en) | Loading device for calibrating displacement sensor and calibration method | |
| CN112881034A (en) | High-precision key detection device and method based on LabVIEW platform | |
| CN102072701A (en) | Method for detecting size of part and device | |
| CN214471762U (en) | High accuracy button detection device based on LabVIEW platform | |
| CN100348994C (en) | Automatic detector and method for mechanical performance of push-pull circuit breaker | |
| JP4034906B2 (en) | Surface texture measuring machine | |
| CN203024854U (en) | Automatic pressure preloading equipment for weighing force transducer | |
| CN108737946B (en) | Multifunctional intelligent sound box testing device and sound box testing method thereof | |
| CN201716393U (en) | Solar silicon surface line marker tester | |
| CN108132437B (en) | Test platform for terminal jitter suppression function of alternating current servo driver | |
| CN203534562U (en) | Square lithium battery electrical core constant voltage thickness measuring device | |
| CN213579225U (en) | Battery size measuring device | |
| CN114440797A (en) | Straightening detection device and method suitable for steel rails in whole road section | |
| CN210293509U (en) | Sliding friction force test bench for slide rail at bottom of automobile armrest box | |
| CN105823405A (en) | Inductance type displacement sensor detecting device | |
| CN113134848A (en) | Measurement mode based on six-axis robot repeated positioning precision | |
| CN207816600U (en) | A kind of Bus- Speed Monitoring platform of view-based access control model system | |
| CN218955988U (en) | Pressure response time testing device of pressure sensor | |
| CN216523777U (en) | AGV keeps away barrier distance test system | |
| CN209247779U (en) | A kind of rigid softness test device of corium | |
| CN214337892U (en) | Key scanning circuit device based on AD sampling | |
| CN108286954B (en) | Full-automatic clutch pedal detection device | |
| CN217110839U (en) | Be applicable to full road section rail alignment detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |