CN218238700U - Automatic measuring device for size of steel member - Google Patents
Automatic measuring device for size of steel member Download PDFInfo
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- CN218238700U CN218238700U CN202221839966.0U CN202221839966U CN218238700U CN 218238700 U CN218238700 U CN 218238700U CN 202221839966 U CN202221839966 U CN 202221839966U CN 218238700 U CN218238700 U CN 218238700U
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Abstract
The utility model relates to a steel member dimension automatic measuring device, which comprises a plastic shell, magnets, a movable guide block, a power supply, scale marks, magnetic liquid, a voltmeter and a processor, wherein the two magnets have opposite polarities and are respectively fixed on the upper side and the lower side in the plastic shell; the movable guide block is arranged between the two magnets and can move between the magnets in parallel; the power supply provides current for the movable guide block; the scale marks are laid at equal intervals along the length direction of the plastic shell, and one part of the scale marks extends between the two magnets and is overlapped with the movable guide block in the vertical direction; the magnetic liquid is attached to the scale marks, and when the magnetic liquid is adsorbed by the steel member, the scale marks can be in contact with the movable guide block; one end of the voltmeter is communicated with the movable guide block, and the other end of the voltmeter is communicated with the scale marks; the processor is in signal connection with the voltmeter and used for collecting and processing the voltage value of the voltmeter. This application utilizes device and steel member contact back, and the automatic measure of steel member size is realized to the voltage change that arouses by steel member inner structure.
Description
Technical Field
The utility model relates to an automatic change the measuring equipment field, especially relate to a steel member size automatic measuring device.
Background
The steel member processing process involves the work of measuring and accepting such as finished product appearance structure size, trompil size, and the steel member measurement method that currently commonly uses is artificial steel rule measurement, and this method is inefficient, the error is big, and can't realize the digitization and the information-based management of measured data, leads to historical measured data traceability relatively poor. Meanwhile, a dimension measuring device for a steel member is provided by adopting photogrammetry and a three-dimensional laser scanning mode, although the method can realize partial automation of dimension measuring work of the steel member, data required for acceptance check cannot be automatically generated, and specific dimension data can be acquired by manually processing a large amount of measured point cloud data.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steel member size automatic measuring device to solve above-mentioned technical problem.
In order to solve the technical problem, the utility model provides an automatic measuring device for the dimension of a steel member, which comprises a plastic shell, two magnets, a movable guide block, a power supply, a plurality of scale marks, magnetic liquid, a voltmeter and a processor, wherein the two magnets, the movable guide block, the power supply, the scale marks, the magnetic liquid, the voltmeter and the processor are arranged in the plastic shell,
the two magnets have opposite polarities and are respectively fixed on the upper side and the lower side in the plastic shell;
the movable guide block is arranged between the two magnets and can move between the magnets in parallel;
the power supply supplies current to the movable guide block;
the scale marks are made of metal materials, the scale marks are laid at equal intervals along the length direction of the plastic shell, and at least one part of the scale marks extends between the two magnets and is overlapped with the movable guide block in the vertical direction;
the magnetic liquid is attached to the scale marks, and when the magnetic liquid is adsorbed by a steel member, the scale marks can be contacted with the movable guide block;
one end of the voltmeter is communicated with the movable guide block, and the other end of the voltmeter is communicated with the scale mark;
the processor is in signal connection with the voltmeter and used for collecting and processing the voltage value of the voltmeter.
Preferably, a conductive track is further arranged in the plastic casing, the conductive track is arranged on the side surface of the movable guide block along the length direction of the plastic casing, and the movable guide block can slide along the conductive track.
Preferably, the width of the movable guide block is half of the interval of the graduation lines.
Preferably, the width of the movable guide block is 0.5mm, and the interval between the scale marks is 1mm.
Preferably, the plastic shell is divided into an acceleration area and a measurement area along the length direction, and when the movable guide block is positioned in the measurement area, the movable guide block can move at a constant speed under the action of a magnetic field; the graduation mark covers the measuring area.
Preferably, a rotary switch is further arranged on the plastic shell and connected with the power supply.
Preferably, the rotary switch is provided with three gears for controlling the on/off and direction of the power supply.
Preferably, the processor is in signal connection with the cloud platform through a network.
Preferably, the plastic housing is of a straight rule type or a tape measure type.
Compared with the prior art, the utility model provides a steel member size automatic measuring device has following advantage:
1. the utility model provides a measuring device can adsorb the magnetic liquid after contacting with the steel member, makes the scale mark contact with the removal guide block, and the voltmeter measured the magnitude of voltage v this moment, and when the steel member appeared the trompil, the magnetic liquid drove the scale mark and replied to initial position, made scale mark and removal guide block disconnection contact, and the voltmeter measured the magnitude of voltage this moment and was 0, like this, can obtain the size characteristic of steel member according to the change of voltmeter magnitude of voltage;
2. in the application, the power supply provides stable current for the movable guide block, and the two magnets provide a constant magnetic field for the movable guide block, so that the movable guide block can move in parallel, the dimension of the steel member is automatically scanned, and the detection efficiency is high and the error is small;
3. the processor can obtain the size information of the steel member through calculation only by the moving speed of the moving guide block and the voltage value and the voltage change time of the voltmeter, the calculation amount is small, and data storage is facilitated.
Drawings
Fig. 1 is a schematic structural view of an automatic measuring device for the dimension of a steel member according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A cross-sectional view A-A of FIG. 1 (not in contact with the steel member);
FIG. 3 is a cross-sectional view of an automatic measuring device for the dimension of a steel member (in contact with the steel member) according to an embodiment of the present invention;
fig. 4 is a schematic diagram illustrating a moving process of the movable guide block in the automatic measuring device for the dimension of the steel member according to an embodiment of the present invention;
fig. 5 is a schematic view of a measurement result of the automatic measuring device for the dimension of the steel member according to an embodiment of the present invention.
In the figure: 01-steel component, 10-plastic shell, 20-magnet, 21-magnetic induction line, 30-movable guide block, 31-conductive track, 40-power supply, 50-graduation line, 60-magnetic liquid, 70-voltmeter, 80-processor and 90-rotary switch.
Detailed Description
In order to describe the technical solution of the above utility model in more detail, the following specific examples are given to demonstrate the technical effects; it should be emphasized that these examples are intended to illustrate the invention and are not to be construed as limiting the scope of the invention.
The utility model provides a steel member size automatic measuring device, as shown in fig. 1 to fig. 3, include plastic casing 10 and install in two blocks of magnet 20 in the plastic casing 10, remove guide block 30, power 40, a plurality of scale mark 50, magnetic fluid 60, voltmeter 70 and treater 80, plastic casing 10 can protect inner structure. In some embodiments, the plastic housing 10 may be a ruler type or a tape measure type, which is convenient for measurement and storage.
Specifically, referring to fig. 2 and 3, the two magnets 20 have opposite polarities and are fixed to the upper and lower sides of the plastic housing 10, respectively, to provide a constant magnetic field for the internal moving guide 30.
The moving guide 30 is disposed between the two magnets 10 and can move in parallel between the magnets 20; the power source 40 supplies a stable current to the moving guide 30. Referring to fig. 4, when the direction of the current in the movable guide 30 is the direction indicated by the thin arrow in fig. 4; the distribution of the magnets 20 is such that the upper part is an N pole, and the lower part is an S pole, the direction of the magnetic induction line 21 is as the direction indicated by the dotted arrow in fig. 4, and at this time, the moving guide 30 is affected by the electromagnetic induction effect and receives an ampere force F, where F = BIl (B is the magnetic field strength generated by the magnets 20, I is the magnitude of the current in the moving guide 30, and l is the length of the moving guide 30). Under the action of the ampere force F, the moving guide 30 moves in the direction of the thick line arrow in fig. 4.
The scale marks 50 are made of metal materials, the scale marks 50 are laid at equal intervals along the length direction of the plastic shell 10, and at least one part of the scale marks 50 extends between the two magnets 20 and is overlapped with the movable guide block 30 in the vertical direction; the magnetic liquid 60 is attached to the scale marks 50, and when the magnetic liquid 60 is adsorbed by the steel member 01, the scale marks 50 can contact the movable guide block 30. Referring to fig. 2 and 3, when the plastic housing 10 contacts the steel member 01 and the steel member 01 is structurally complete (for example, at a position where there is a partition or there is no opening), the steel member 01 absorbs the magnetic fluid 60, and drives the scale 50 to contact the movable guide 30; when the plastic housing 10 is not in contact with the steel member 01, or the structure of the steel member 01 in contact is incomplete (e.g., at a position where a gap exists between partitions or an opening exists), the scale 50 is disengaged from the moving guide 30.
One end of the voltmeter 70 is communicated with the movable guide block 30, and the other end is communicated with the scale mark 50. In other words, whether the graduation line 50 contacts the movable guide 30 or not determines whether the voltmeter 70 can detect the voltage value, when the graduation line 50 contacts the movable guide 30, the detection loop of the voltmeter 70 is conducted, and the voltage value of the movable guide 30 can be detected; when the scale mark 50 is disengaged from the moving guide 30, the detection circuit of the voltmeter 70 is disconnected, and the indication number of the voltmeter 70 is 0.
The processor 80 is in signal connection with the voltmeter 70 and is configured to collect and process the voltage value of the voltmeter 70. The processor 80 can obtain the size information of the steel member 01 through simple calculation according to the moving speed of the moving guide 30 and the voltage value and the voltage change time of the voltmeter 70, and the calculation amount is small, and the data storage is convenient. In some embodiments, the processor 80 may further be in signal connection with the cloud platform through a network, so as to implement functions of remote transmission, monitoring, storage, invocation and the like of the measurement result.
The automatic measurement of the size of steel member 01 can be realized to this application, and can once only measure a plurality of trompils size (stiffening rib interval) and trompil interval (stiffening rib width) of steel member 01, improved measuring efficiency and precision greatly, realized the digitization and the information-based management of data, improved historical measurement data's traceability, still reduced the calculated amount among the data processing simultaneously, improved measuring device's practicality.
As shown in fig. 1 to 3, in some embodiments, a conductive track 31 is further disposed in the plastic housing 10, the conductive track 31 is disposed on a side surface of the moving guide 30 along a length direction of the plastic housing 10, and the moving guide 30 is capable of sliding along the conductive track 31. In some embodiments, the conductive track 31 can be designed as a lateral groove along which the moving guide 30 slides. In some embodiments, one end of the power source 40 is communicated with the movable guide block 30 through the conductive track 31, that is, the conductive track 31 made of a metal material can be used as a part of a wire to realize a conductive function, and the wire can be accommodated in the groove to protect the wire.
Referring to fig. 1, in some embodiments, the width of the movable guide 30 is half of the distance between the graduation marks 50, for example, the width of the movable guide 30 is 0.5mm, and the distance between the graduation marks 50 is 1mm, but the width of the movable guide 30 and the distance between the graduation marks 50 may also be reduced as required.
With reference to fig. 1, the plastic housing 10 is divided into an acceleration region and a measurement region along a length direction, the movable guide block 30 moves at an accelerated speed in the acceleration region, and when the movable guide block 30 is located in the measurement region, the movable guide block can move at a constant speed under the action of a magnetic field; the graduation marks 50 cover the measuring area. Specifically, the moving guide 30 moves in parallel between the two magnets 20 under the ampere force F, and the moving guide 30 is also subjected to an interference of the friction force F generated by the movement. The moving guide 30 will generate an accelerated movement under the action of F and F, and an induced current I opposite to the direction I will be generated during the moving of the moving guide 30 g The ampere force F = B (I-I) to which the moving guide 30 is subjected g ) l will change with the movement, thus causing the acceleration of the movement of the moving guide 30 to change all the time, this stage is defined as the acceleration zone, at this moment, the moving speed is not fixed, the calculation is difficult, therefore the scale mark 50 does not cover this zone; when the final ampere force F equals the friction force F, the moving guide 30 will move at a speed V m The uniform movement is performed, and this stage is defined as a measurement area, and the scale mark 50 covers the area, so as to achieve the purposes of reducing the calculated amount and reducing the calculation difficulty.
With continued reference to fig. 1, in some embodiments, a rotary switch 90 is further disposed on the plastic housing 10, and the rotary switch 90 is connected to the power source 40 for controlling the on/off and the direction of the power source. Specifically, the rotary switch 90 is provided with three gears o, 1 and 2, the circuit of the gear o is disconnected, and no current exists in the circuit; the 1-gear and 2-gear circuits are closed, and the current directions in the two gear circuits are opposite.
The use process and the working principle of the automatic measuring device for the dimension of the steel member provided by the application are described in detail below with reference to the accompanying drawings 1 to 5:
s1: before measurement, the rotary switch 90 is first adjusted from the o-position to the 1-position, the direction of the current in the movable guide 30 is a → b in fig. 1, and is affected by the electromagnetic induction effect, and the movable guide 30 is affected by the ampere force F. Under the action of the ampere force F, the movable guide 30 moves in the direction c → d shown in fig. 1, and the movable guide 30 is subjected to the resistance of the friction force F generated by the movement, as shown in fig. 4. The moving guide block 30 is accelerated and moved under the action of the ampere force F and the friction force F within the range of the acceleration zone until the ampere force F and the friction force F applied to the moving guide block 30 are equal, the moving guide block 30 enters the measurement zone at a speed V m And carrying out uniform movement.
S2: after the movable guide block 30 moves to the foremost end of the measuring device, the measuring device is placed on the surface of the steel member 01 to be measured, under the action of the magnetic force of the magnetic liquid 60, the measuring device can be adsorbed on the surface of the steel member 01, the magnetic liquid 60 in the contact area with the steel member 01 can downwards press the scale marks 50, and when the movable guide block 30 moves to the contact area, the scale marks 50 can be contacted, so that the voltmeter 70 can measure the voltage value v of the movable guide block 30. In the perforated area or the interval area of the plurality of stiffeners of the steel member 01, the measuring device is not in surface contact with the steel member 01, the magnetic fluid 60 is not magnetically acted, and does not press the scale mark 50, when the movable guide 30 moves to the area, the scale mark 50 is not in contact with the movable guide 30, and the voltage value measured by the voltmeter 70 is 0.
S3: the front end of the measuring device is provided with an accelerating area with the length L, the accelerating area is not provided with scale marks 50 and is used for accelerating the movable guide block 30 from the speed 0 to the speed V m Providing an acceleration length that ensures that the moving guide 30 is at a uniform velocity V within the measurement zone m The movement is performed. The acceleration zone length L is calculated as follows: first, the velocity V of the moving guide 30 at different times during the acceleration phase is calculated according to equation 1 below, with a certain unit time dt i (ii) a With V m As the final velocity of the moving guide 30, iterative calculation is performed with respect to equation 3 until V is calculated n ＝V m (ii) a Then V is carried out according to equation 2 i With respect to the dt integral, the acceleration zone length L is calculated.
S4: after the measuring device places the surface of the steel member 01 to be measured, the rotary switch 90 is shifted to 2-gear, the processor 80 starts to work, and the working time t is recorded from 0. Meanwhile, a current in the direction b → a in fig. 1 is generated in the moving guide 30. The moving guide 30 is influenced by the magnetic field of the magnet, the direction of the ampere force F borne by the moving guide 30 is the direction d → c in fig. 1, under the action of the ampere force F and the friction force F, the moving guide 30 moves along the direction d → c until the moving guide moves by the length L of the acceleration region, leaves the acceleration region, enters the measurement region and is V-shaped m And carrying out uniform movement. The movable guide 30 is brought into contact with the scale 50 pressed by the magnetic liquid 60 in the measuring region, so that the voltmeter 70 measures the voltage value v. When the voltmeter 70 measures the voltage value, the processor 80 records the signal as "1", and records the time t at the moment i 1 . When the movable guide block 30 does not contact the scale mark 50 in the measuring region, the voltage value measured by the voltmeter 70 is 0, and then the processor 80 records the signal as "0" at this time, and records the time t at this moment i 0 。
S5: when the moving guide 30 moves to the end of the measuring region, that is, when the moving guide 30 moves by a distance Lc in the measuring region, the processor 80 starts to perform the dimensional measurement data analysis of the steel member 01. Please refer to fig. 5, taking an example that the distance between the scale lines 50 is 1mm and the width of the movable guide block 30 is 0.5 mm: firstly, the 1 st signal is taken as the time t of' 1 1 1 As a moving guide 30 to a point of time corresponding to the measurement start boundary of the steel member 01 by t 1 1 Time t at which the 1 st signal after the time point is "0 1 0 As a time point when the moving guide 30 moves to a position corresponding to the starting boundary of the 1 st opening region (reinforcing rib) of the steel member 01, a time t when the 2 nd signal is "1" is set 2 1 As a moving guide 30 to the steelThe time point of the position corresponding to the ending boundary of the 1 st opening area (stiffening rib) of the member 01 can be calculated according to the following formula 3-4 to obtain the distance l from the starting boundary to the opening boundary (stiffening rib) 1 Opening size (rib spacing) s 1 . And so on, the ith signal is taken as the time t of' 1 i 1 As a moving guide 30 to a point corresponding to the ith boundary of the steel member 01 at a time t 1 1 Time t at which the ith signal after the time point is "0 i 0 As a time point when the movable guide 30 is moved to a position corresponding to the starting boundary of the ith opening region (stiffener) of the steel member 01, a time t when the i +1 th signal is "1 i+1 1 The distance from the boundary of the steel member 01 to the boundary of the opening (reinforcing rib) or the opening pitch (reinforcing rib width) l is calculated as the time point when the movable guide 30 moves to the position corresponding to the finishing boundary of the ith opening region (reinforcing rib) of the steel member 01 i Opening size (rib spacing) s i . Finally, at time t when the last 1 signal is "1 n 1 The end boundaries of the steel member 01 may be measured to obtain the lengths of the plurality of opening areas (the intervals between the stiffeners) in the steel member 01 and the distances from the boundaries of the steel member 01 to the respective opening areas (the stiffeners).
In the formula: v m The moving speed of the movable guide block 30 in the magnetic field of the measuring region;
t i 1 the time when the ith signal is "1";
t i 0 is t 1 1 The time when the ith signal after the time point is "0";
l i the distance from the boundary of the steel member 01 to the open area (stiffener) or the ith open space (stiffener width);
s i the ith opening size (rib spacing).
S6: after the processor 80 analyzes the measured data of the dimension of the steel member 01, the measured data of the dimension of the steel member 01 is sent to the cloud platform through the wireless network, and the data can be searched and downloaded.
In summary, the utility model provides an automatic measuring device for the size of a steel member, which comprises a plastic shell 10, and two magnets 20, a movable guide block 30, a power supply 40, a plurality of scale lines 50, magnetic liquid 60, a voltmeter 70 and a processor 80 which are arranged in the plastic shell 10, wherein the two magnets 20 have opposite polarities and are respectively fixed on the upper side and the lower side in the plastic shell 10 to provide a constant magnetic field for the movable guide block 30 inside; the moving guide 30 is disposed between the two magnets 10 and can move in parallel between the magnets 20; the power source 40 supplies current to the moving guide 30; the scale marks 50 are made of metal materials, the scale marks 50 are laid at equal intervals along the length direction of the plastic shell 10, and at least one part of the scale marks 50 extends between the two magnets 20 and is overlapped with the movable guide block 30 in the vertical direction; the magnetic liquid 60 is attached to the scale marks 50, and when the magnetic liquid 60 is adsorbed by a steel member 01, the scale marks 50 can contact the movable guide block 30; one end of the voltmeter 70 is communicated with the movable guide block 30, and the other end is communicated with the graduation mark 50; the processor 80 is in signal connection with the voltmeter 70 and is used for collecting and processing the voltage value of the voltmeter 70; the processor 80 can obtain the size information of the steel member 01 through simple calculation according to the moving speed of the moving guide block 30 and the voltage value and the voltage change time of the voltmeter 70, and has small calculation amount and convenient data storage. The automatic measurement of the size of steel member 01 can be realized to this application, and can once only measure a plurality of trompil sizes (stiffening rib interval) and the trompil interval (stiffening rib width) of steel member 01, improved measuring efficiency and precision greatly, realized the digitization and the information-based management of data, improved historical measured data's traceability, still reduced the calculation volume among the data processing simultaneously, improved measuring device's practicality.
It will be apparent to those skilled in the art that various changes and modifications may be made to the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An automatic measuring device for the dimension of a steel member is characterized by comprising a plastic shell, two magnets, a movable guide block, a power supply, a plurality of scale marks, magnetic liquid, a voltmeter and a processor, wherein the two magnets, the movable guide block, the power supply, the scale marks, the magnetic liquid, the voltmeter and the processor are arranged in the plastic shell,
the two magnets have opposite polarities and are respectively fixed on the upper side and the lower side in the plastic shell;
the movable guide block is arranged between the two magnets and can move between the magnets in parallel;
the power supply supplies current to the movable guide block;
the scale marks are made of metal materials, the scale marks are laid at equal intervals along the length direction of the plastic shell, and at least one part of the scale marks extends between the two magnets and is overlapped with the movable guide block in the vertical direction;
the magnetic liquid is attached to the scale marks, and when the magnetic liquid is adsorbed by a steel member, the scale marks can be in contact with the movable guide block;
one end of the voltmeter is communicated with the movable guide block, and the other end of the voltmeter is communicated with the scale mark;
and the processor is in signal connection with the voltmeter and is used for collecting and processing the voltage value of the voltmeter.
2. The automatic steel member dimension measuring device according to claim 1, wherein a conductive track is further provided in the plastic housing, the conductive track is provided on a side surface of the movable guide block along a length direction of the plastic housing, and the movable guide block can slide along the conductive track.
3. An automatic measuring device for the dimension of a steel member according to claim 1, wherein the width of the moving guide is half of the interval of the graduation marks.
4. An automatic measuring device for the dimension of a steel member as claimed in claim 3, wherein the width of the moving guide is 0.5mm, and the interval of the graduation marks is 1mm.
5. The automatic steel member dimension measuring device according to claim 1, wherein the plastic housing is divided into an acceleration region and a measurement region in a length direction, and when the movable guide block is located in the measurement region, the movable guide block can move at a constant speed under the action of a magnetic field; the graduation mark covers the measuring area.
6. An automatic measuring device for the dimension of the steel member according to claim 1, characterized in that a rotary switch is further provided on the plastic housing, and the rotary switch is connected with the power supply.
7. An automatic measuring device for the dimension of a steel member according to claim 6, characterized in that said rotary switch is provided with three steps for controlling the switching and direction of said power supply.
8. The automatic steel member dimension measuring device according to claim 1, wherein the processor is in signal connection with the cloud platform through a network.
9. An automatic measuring device for the dimension of a steel member as claimed in claim 1, wherein the plastic housing is of a ruler type or a tape type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221839966.0U CN218238700U (en) | 2022-07-15 | 2022-07-15 | Automatic measuring device for size of steel member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221839966.0U CN218238700U (en) | 2022-07-15 | 2022-07-15 | Automatic measuring device for size of steel member |
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| Publication Number | Publication Date |
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| CN218238700U true CN218238700U (en) | 2023-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221839966.0U Active CN218238700U (en) | 2022-07-15 | 2022-07-15 | Automatic measuring device for size of steel member |
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| CN (1) | CN218238700U (en) |
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2022
- 2022-07-15 CN CN202221839966.0U patent/CN218238700U/en active Active
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