CN214372311U - Portable object surface flatness measuring instrument - Google Patents
Portable object surface flatness measuring instrument Download PDFInfo
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- CN214372311U CN214372311U CN202022399922.8U CN202022399922U CN214372311U CN 214372311 U CN214372311 U CN 214372311U CN 202022399922 U CN202022399922 U CN 202022399922U CN 214372311 U CN214372311 U CN 214372311U
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Abstract
The utility model discloses a portable object surface roughness apparatus, include: the device comprises a screw rod sliding table, a controller, a computer, a data acquisition unit and a driving unit; the data acquisition unit includes: a laser displacement sensor and an A/D converter; the laser displacement sensor is arranged on the side face of the sliding block on the screw rod sliding table; the driving unit includes: a stepper motor and a driver; a main shaft of the stepping motor is fixedly connected with a screw rod on the screw rod sliding table; the utility model discloses simple structure, novel in design is reasonable, and the operation of being convenient for is from data acquisition to data processing's whole measurement process all not artifical the participation, and degree of automation is high, has both improved work efficiency, has guaranteed the accuracy and the credibility of testing result again, can realize the accurate survey of wall, ground and industrial product surface smoothness fast, is of value to the improvement that promotes engineering quality and product quality, and application range is wide, is fit for extensively promoting.
Description
Technical Field
The utility model belongs to the technical field of the plane detects, concretely relates to portable object surface roughness apparatus.
Background
At present, the flatness of the surface of fair-faced concrete and objects is usually measured by matching a running rule with a feeler gauge. During measurement, the guiding rule is attached to the surface of an object to be measured, the feeler which meets the gap width is selected to be inserted into a measured gap, the maximum gap value between the guiding rule and the plane is measured after the feeler is adjusted and pulled for multiple times, and the gap value is the surface flatness of the measured plane.
In the measuring process, the accuracy of the measuring result is easily influenced by the shape and the surface flatness of the measured object, and the flatness of the whole plane can be determined by adjusting the specification of the feeler gauge for many times. In the measurement, manual measurement, reading and recording are needed, so that errors are easy to generate and the measurement efficiency is low; the feeler gauge is continuously worn in the use process, the measured data has certain errors, and the measurement precision is low; therefore, it is necessary to develop a testing device for measuring the surface flatness of an object, which is convenient to operate and has high measuring accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a portable object surface roughness apparatus, this apparatus simple structure, novel in design is reasonable, the operation of being convenient for, all do not have artifical the participation from data acquisition to data processing's whole measurement process, degree of automation is high, both improved work efficiency, the accuracy and the credibility of testing result have been guaranteed again, can realize the wall fast, the accurate determination of ground and industrial product surface roughness, be of value to promoting the improvement of engineering quality and product quality, wide application range, and wide popularization is suitable.
In order to achieve the above object, the utility model adopts the following technical scheme:
a portable object surface flatness measuring instrument, comprising: the device comprises a screw rod sliding table, a controller, a computer, a data acquisition unit and a driving unit, wherein the data acquisition unit is used for acquiring flatness information of the surface of an object, and the driving unit is used for providing power for the movement of the data acquisition unit;
the data acquisition unit includes: a laser displacement sensor and an A/D converter; the laser displacement sensor is arranged on the side face of the sliding block on the screw rod sliding table, and the scanning instruction input end of the laser displacement sensor is electrically connected with the scanning instruction output end of the controller through the A/D converter; the scanning signal output end of the laser displacement sensor is electrically connected with the scanning signal input end of the controller through the A/D converter; the controller is wirelessly connected with the computer;
the driving unit includes: a stepper motor and a driver; a main shaft of the stepping motor is fixedly connected with a screw rod on the screw rod sliding table; and the rotation instruction input end of the stepping motor is electrically connected with the rotation instruction output end of the controller through the driver.
The portable object surface flatness tester is characterized in that the laser displacement sensor is used for collecting flatness information of the object surface, converting the detected flatness information through the A/D converter in real time and then sending the converted flatness information to the controller;
the controller is used for sending a rotation instruction or a rotation stopping instruction to the stepping motor; the laser displacement sensor is used for sending a light projection instruction or a light projection stopping instruction to the laser displacement sensor; the flatness information receiving device is used for receiving the flatness information sent by the laser displacement sensor, storing the received flatness information and sending the stored flatness information to the computer.
The portable object surface flatness tester is characterized in that the screw rod sliding table is also provided with a limiting device for stopping the sliding block;
the stop device includes: a limit switch and a shielding sheet;
the limit switches are arranged at two ends of the side face of the screw rod sliding table, and the shielding pieces are arranged on the side face of the sliding block; the limit switch and the shielding piece are both positioned on one side opposite to the laser displacement sensor; the thickness of the shielding piece is larger than the diameter of laser between the upper column head and the lower column head of the limit switch;
and the position signal output end of the limit switch is electrically connected with the position signal input end of the controller.
The portable object surface flatness tester is characterized in that a sliding groove is formed in the side face of the screw rod sliding table, and the limit switch is arranged in the sliding groove in a sliding mode.
The portable object surface flatness tester is characterized in that the number of the limit switches can be multiple groups, and the multiple groups of limit switches are arranged in the sliding grooves in pairs.
The portable object surface flatness tester is characterized in that the laser displacement sensor adopts the following types: BL-300 NM.
The portable object surface flatness tester is characterized in that the controller (11) is of the type: FSC-1A.
The portable object surface flatness measuring instrument is characterized in that a power supply of the portable object surface flatness measuring instrument can be a direct current power supply or an alternating current power supply.
Compared with the prior art, the utility model has the following advantage:
1. the utility model has the advantages of simple structure, novel in design is reasonable.
2. The utility model discloses set up laser displacement sensor on the slider of lead screw slip table, remove along the lead screw orbit of lead screw slip table by step motor drive slider again, remove in-process laser displacement sensor and scan the testee surface to give the computer with measured data transmission in real time through the controller, draw the roughness curve chart of survey plane by the computer at last. From data acquisition to data processing, the whole measurement process is free from manual participation, the efficiency of measurement work is improved, errors are reduced, and the accuracy and the reliability of a detection result are ensured. The method is simple to operate, data collection is more comprehensive, accurate measurement of the surface flatness of the wall surface, the ground surface and industrial products can be quickly achieved, improvement of engineering quality and product quality is facilitated, and the method has a certain application prospect and popularization value.
3. The utility model discloses a set up limit switch in the side of lead screw slip table, make laser displacement sensor can automatic identification initial position or terminal position, degree of automation is high, the operation of being convenient for, very big improvement measurement of efficiency.
4. The utility model discloses a slide limit switch and set up in the spout, can remove limit switch's position, the operation of being convenient for according to the planar size of testee.
5. The utility model discloses an it is with low costs to realize, excellent in use effect, convenient to popularize and use.
To sum up, the utility model discloses simple structure, novel in design is reasonable, and the operation of being convenient for is from data acquisition to data processing's whole measurement process all not artifical the participation, and degree of automation is high, has both improved work efficiency, has guaranteed the accuracy and the credibility of testing result again, can realize the accuracy determination of wall, ground and industrial product surface smoothness fast, is of value to the improvement that promotes engineering quality and product quality, and application scope is wide, is fit for generally promoting.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
In order to illustrate the technical solutions of the present invention or the prior art more clearly, the following brief description of the embodiments or the drawings used in the description of the prior art will be made, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a portable object surface flatness measuring instrument according to the present invention;
FIG. 2 is a schematic view of the backside structure of FIG. 1;
FIG. 3 is a block diagram of the present invention;
FIG. 4 is a schematic view of a flatness profile of a measured plane.
Description of reference numerals:
1-a screw rod sliding table; 2, a sliding block; 3-laser displacement sensor;
4-a connector; 5, a stepping motor; 6, a shielding sheet;
7, a chute; 8, a limit switch; 9-a/D converter;
10-a driver; 11-a controller; 12-a computer.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of implementation in many different ways than those herein set forth and of similar import by those skilled in the art without departing from the spirit of this application and is therefore not limited to the specific implementations disclosed below.
As shown in fig. 1, fig. 2 and fig. 3, the utility model discloses a structure of portable object surface flatness measuring instrument, include: lead screw slip table 1, controller 11, data acquisition unit and drive unit.
The data acquisition unit is used for acquiring flatness information of the surface of the object;
the data acquisition unit includes: a laser displacement sensor 3 and an A/D converter 9; the laser displacement sensor 3 is arranged on the side surface of the sliding block 2 on the screw rod sliding table 1, and the scanning instruction input end of the laser displacement sensor 3 is electrically connected with the scanning instruction output end of the controller 11 through the A/D converter 9; the scanning signal output end of the laser displacement sensor 3 is electrically connected with the scanning signal input end of the controller 11 through the A/D converter 9; the controller 11 is wirelessly connected with the computer 12;
the driving unit provides power for the movement of the data acquisition unit;
the driving unit includes: a stepping motor 5 and a driver 10; a main shaft of the stepping motor 5 is connected with a screw rod on the screw rod sliding table 1 through a connector 4; the rotation instruction input end of the stepping motor 5 is electrically connected with the rotation instruction output end of the driver 10, and the rotation instruction input end of the driver 10 is electrically connected with the rotation instruction output end of the controller 11.
In this embodiment, lead screw slip table 1 is current structure, includes: the lead screw, the track and the slide block 2 adopt a sealing design that the track and the lead screw are sealed in a shell, the parallel precision of the slide block 2 running on the track can reach +/-0.01 mm, and the plane where the laser displacement sensor 3 is located meets the flatness requirement during measurement through the lead screw sliding table 1. The lead screw is driven by step motor 5 and rotates, has both guaranteed the ride comfort when laser displacement sensor 3 moves the operation, can cooperate the different sampling frequency of laser displacement sensor 3 through the speed of adjusting step motor 5 again, realizes different detection efficiency. The laser displacement sensor 3 measures the distance from the plane where the laser displacement sensor is located to each point of the surface of the measured object, the computer 12 draws a curve graph (shown in figure 4) with the slide position as the abscissa and the measured data of the laser displacement sensor 3 as the ordinate through the calculated running distance of the slide 2 and the received measured data, and accordingly, the flatness can be calculated. In the graph, the size transformation of the distance represents the fluctuation of the surface of the measured object. According to the calibrated reference, the distance is increased to indicate that the object surface is concave inwards, and the distance is negative to represent that the object surface is convex. The utility model discloses compare in traditional adoption guiding rule and clearance gauge measuring mode, easy operation, data collection are more comprehensive, can realize the quick accurate determination of wall, ground and industrial product surface roughness, are of value to the improvement that promotes engineering quality and product quality, have certain application prospect and spreading value.
The laser displacement sensor 3 adopts the following models: BL-300 NM. The flatness detection device is used for collecting flatness information of the surface of an object, converting the detected flatness information through the A/D converter 9 in real time and then sending the converted flatness information to the controller 11.
The controller 11 is of the type: the FSC-1A is used for sending a rotation instruction or a rotation stopping instruction to the stepping motor 5; the laser displacement sensor is used for sending a light projection instruction or a light projection stopping instruction to the laser displacement sensor 3; the flatness sensor is used for receiving flatness information sent by the laser displacement sensor 3, storing the received flatness information and sending the flatness information to the computer 12;
when the device is used, the bottom surface of the screw rod sliding table 1 is tightly attached to the surface of a measured object, and the data acquisition unit is adjusted to the initial position. The sampling frequency of the laser displacement sensor 3 and the rotation frequency of the stepping motor 5 are set by the controller 11. When the start key is pressed, the controller 11 controls the stepping motor 5 to start rotating, and simultaneously the controller 11 controls the laser displacement sensor 3 to start projecting light. The stepping motor 5 drives a screw rod in the screw rod sliding table 1 to rotate, the sliding block 2 starts to move along the track of the screw rod, so that the laser displacement sensor 3 detects the surface of a detected object along the track of the screw rod, flatness information collected by the laser displacement sensor 3 is sent to the controller 11 in real time, the controller 11 stores the received flatness information in real time and sends the flatness information to the computer 12, and the computer 12 draws a flatness curve of a detected plane through the received data (shown in fig. 4). After the detection is finished, the controller 11 controls the stepping motor 5 to stop rotating, and simultaneously controls the laser displacement sensor 3 to stop projecting light. In the embodiment, from data acquisition to data processing, no manual work is involved in the whole measuring process, so that the efficiency of measuring work is improved, errors are reduced, and the accuracy and the reliability of a detection result are ensured.
As shown in fig. 2, a limiting device for stopping the movement of the sliding block 2 is further arranged on the screw rod sliding table 1, and the limiting device comprises: a limit switch 8 and a shielding sheet 6;
the limit switches 8 are arranged at two ends of the side surface of the screw rod sliding table 1, and the shielding pieces 6 are arranged on the side surface of the sliding block 2; the limit switch 8 and the shielding piece 6 are both positioned on one side opposite to the laser displacement sensor 3; the thickness of the shielding piece 6 is larger than the diameter of the laser between the upper column head and the lower column head of the limit switch 8.
As shown in fig. 3, the position signal output end of the limit switch 8 is electrically connected with the position signal input end of the controller 11; the limit switch 8 is of the type F3N-18tn05-NR 2M.
In this embodiment, when the slider 2 moves to the limit switch 8, the shielding sheet 6 blocks the laser between the upper and lower column heads of the limit switch 8, the limit switch 8 is triggered, and the limit switch 8 sends a signal that the laser displacement sensor 3 has reached the initial position or the final position to the controller 11. When the laser displacement sensor 3 reaches the initial position, the controller 11 sends a rotation instruction to the stepping motor 5 and sends a light projection instruction to the laser displacement sensor 3 at the same time; when the laser displacement sensor 3 reaches the end position, the controller 11 sends a rotation stop instruction to the stepping motor 5, and simultaneously sends a light projection stop instruction to the laser displacement sensor 3.
In this embodiment, the collection mode may also be set to a continuous collection mode, the collection interval time is set, and when the slider 2 reaches the end limit switch, the first data collection is completed, and the laser displacement sensor 3 stops projecting light. After the interval of 1s, the controller 11 controls the stepping motor 5 to rotate reversely to drive the slider 2 to move to the initial position until the initial position stops, and the scanning operation is not performed in the process. Wait for next measuring in-process, the staff will the utility model discloses lay in the position waiting that will measure next. After the countdown is over, a new round of detection begins.
In this embodiment, stop device's design makes laser displacement sensor 3 can automatic identification initial position or terminal position, and degree of automation is high, the operation of being convenient for, very big improvement measurement of efficiency.
The side of lead screw slip table 1 is equipped with spout 7, limit switch 8 slides and sets up in spout 7.
In this embodiment, limit switch 8 slides and sets up in spout 7, can remove limit switch 8's position according to the planar size of testee, the operation of being convenient for.
The number of the limit switches 8 can be multiple groups, and the multiple groups of limit switches 8 are arranged in the sliding groove 7 in pairs.
In this embodiment, the limit switches 8 are in multiple groups, and the appropriate limit switches 8 can be selected according to the width of the measured plane during measurement, so that different tracks of the movement of the sliding block are realized, and the applicability is high.
The power supply of the portable object surface flatness measuring instrument can be a direct current power supply or an alternating current power supply.
In this embodiment, the power supply is a direct current power supply and an alternating current power supply, and the alternating current power supply is used under the condition of alternating current, and the direct current power supply is used when the alternating current power supply is not used, so that the measurement work cannot be influenced under any condition.
The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform that the above embodiment was done the utility model discloses technical scheme's within the scope of protection.
Claims (7)
1. A portable object surface flatness measuring instrument, comprising: the device comprises a screw rod sliding table (1), a controller (11), a computer (12), a data acquisition unit and a driving unit, wherein the data acquisition unit is used for acquiring flatness information of the surface of an object, and the driving unit is used for providing power for the movement of the data acquisition unit;
the data acquisition unit includes: a laser displacement sensor (3) and an A/D converter (9); the laser displacement sensor (3) is arranged on the side face of the sliding block (2) on the screw rod sliding table (1), and the scanning instruction input end of the laser displacement sensor (3) is electrically connected with the scanning instruction output end of the controller (11) through the A/D converter (9); the scanning signal output end of the laser displacement sensor (3) is electrically connected with the scanning signal input end of the controller (11) through the A/D converter (9); the controller (11) is wirelessly connected with the computer (12);
the driving unit includes: a stepping motor (5) and a driver (10); a main shaft of the stepping motor (5) is fixedly connected with a screw rod on the screw rod sliding table (1); the rotation instruction input end of the stepping motor (5) is electrically connected with the rotation instruction output end of the controller (11) through the driver (10);
the screw rod sliding table (1) is also provided with a limiting device for stopping the sliding block (2) from moving;
the stop device includes: a limit switch (8) and a shielding sheet (6);
the limit switches (8) are arranged at two ends of the side face of the screw rod sliding table (1), and the shielding pieces (6) are arranged on the side face of the sliding block (2); the limit switch (8) and the shielding piece (6) are both positioned on one side opposite to the laser displacement sensor (3); the thickness of the shielding piece (6) is larger than the diameter of laser between an upper column head and a lower column head of the limit switch (8);
and the position signal output end of the limit switch (8) is electrically connected with the position signal input end of the controller (11).
2. The portable object surface flatness measuring instrument according to claim 1, wherein the laser displacement sensor (3) is configured to collect flatness information of the object surface, convert the detected flatness information through the a/D converter (9) in real time, and send the converted flatness information to the controller (11);
the controller (11) is used for sending a rotation instruction or a rotation stopping instruction to the stepping motor (5); the laser displacement sensor is used for sending a light projection instruction or a light projection stopping instruction to the laser displacement sensor (3); the flatness detection device is used for receiving flatness information sent by the laser displacement sensor (3), storing the received flatness information and sending the flatness information to the computer (12).
3. The portable object surface flatness measuring instrument according to claim 1, wherein a sliding groove (7) is formed in the side surface of the screw rod sliding table (1), and the limit switch (8) is slidably arranged in the sliding groove (7).
4. The portable object surface flatness measuring instrument according to claim 3, wherein the number of the limit switches (8) is plural, and plural sets of limit switches (8) are provided in pairs in the sliding groove (7).
5. The portable object surface flatness measuring instrument according to claim 1, wherein the laser displacement sensor (3) is of the type: BL-300 NM.
6. The portable object surface flatness measuring instrument according to claim 1, wherein the controller (11) is of a type: FSC-1A.
7. The portable object surface flatness measuring instrument according to any one of claims 1 to 6, wherein the power supply of the portable object surface flatness measuring instrument is either a DC power supply or an AC power supply.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022399922.8U CN214372311U (en) | 2020-10-26 | 2020-10-26 | Portable object surface flatness measuring instrument |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022399922.8U CN214372311U (en) | 2020-10-26 | 2020-10-26 | Portable object surface flatness measuring instrument |
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| CN214372311U true CN214372311U (en) | 2021-10-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086612A (en) * | 2021-11-18 | 2022-02-25 | 四川朝阳公路试验检测有限公司 | Detection auxiliary device for subgrade settlement |
| CN114235687A (en) * | 2021-11-15 | 2022-03-25 | 中国建筑材料科学研究总院有限公司 | Surface damage detection device and method |
| CN114775380A (en) * | 2022-04-19 | 2022-07-22 | 交通运输部公路科学研究所 | Real-time automatic detection system and device for flatness of water-stable base layer of airport runway after construction |
-
2020
- 2020-10-26 CN CN202022399922.8U patent/CN214372311U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114235687A (en) * | 2021-11-15 | 2022-03-25 | 中国建筑材料科学研究总院有限公司 | Surface damage detection device and method |
| CN114235687B (en) * | 2021-11-15 | 2024-03-26 | 中国建筑材料科学研究总院有限公司 | Surface damage detection equipment and method |
| CN114086612A (en) * | 2021-11-18 | 2022-02-25 | 四川朝阳公路试验检测有限公司 | Detection auxiliary device for subgrade settlement |
| CN114775380A (en) * | 2022-04-19 | 2022-07-22 | 交通运输部公路科学研究所 | Real-time automatic detection system and device for flatness of water-stable base layer of airport runway after construction |
| CN114775380B (en) * | 2022-04-19 | 2024-01-05 | 交通运输部公路科学研究所 | Real-time automatic detecting system and device for flatness of water stable base layer of airport runway after construction |
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