CN110375658B - Quick calibration mechanism and method for mounting displacement laser measurer - Google Patents
Quick calibration mechanism and method for mounting displacement laser measurer Download PDFInfo
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- CN110375658B CN110375658B CN201910667883.4A CN201910667883A CN110375658B CN 110375658 B CN110375658 B CN 110375658B CN 201910667883 A CN201910667883 A CN 201910667883A CN 110375658 B CN110375658 B CN 110375658B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
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Abstract
The invention relates to the technical field of engineering construction and operation, in particular to a quick calibration mechanism for mounting a displacement laser measurer. The angle of the displacement laser measurer with the calibration mirror is adjusted to enable the laser incident light spot and the laser reflection light spot to coincide, the normal of the laser projection screen is adjusted to coincide with the laser direction angle when the two points coincide, and the problem of displacement measurement errors can be solved by adjusting the angle of the displacement laser measurer.
Description
Technical Field
The invention relates to the technical field of engineering construction and operation, in particular to a quick calibration mechanism for mounting a displacement laser measurer and a quick calibration method for mounting the displacement laser measurer.
Background
Deformation measurement during construction and operation of important engineering projects such as high-rise building structures, high-rise buildings, bridges, tunnels, high slopes, dams and the like is an important means for ensuring construction safety and operation health state; the method for measuring the deformation displacement by adopting the laser technology is a novel high-precision measurement technology, and is convenient for realizing automation of construction measurement and safety monitoring. The high-precision laser measurement technology has strict requirements on the precision of the azimuth angle for installing the measurer, the normal line of the projection screen of the displacement laser measurer needs to be superposed with the laser for displacement measurement after the displacement laser measurer is installed, namely the projection screen needs to be perpendicular to the laser for displacement measurement, otherwise, a displacement measurement error is generated, and the high precision of the laser measurement is consumed by the azimuth angle error. The displacement laser measuring device is usually installed at a special position, such as a high-rise outer wall, a high altitude or a suspended position, and the like, the space is narrow and is far away from a laser emitter emitting laser, and a common reference system of the laser emitter and the displacement measuring device is difficult to find, so that the normal of the projection screen is difficult to adjust to a state of being overlapped with the laser.
Disclosure of Invention
The invention aims to solve the problem of displacement measurement error caused by the fact that the normal of a projection screen is difficult to adjust to be coincident with laser in the prior art, and provides a quick calibration mechanism for mounting a displacement laser measurer.
In order to achieve the above purpose, the invention provides the following technical scheme:
a quick calibration mechanism for mounting a displacement laser measurer comprises a calibration mirror arranged on the displacement laser measurer, wherein the calibration mirror comprises a reflecting mirror used for reflecting laser and a display mirror used for displaying a laser penetration point, the reflecting mirror and the display mirror are parallel to each other, and the reflecting mirror or the display mirror is parallel to a projection screen on the displacement laser measurer.
When laser is irradiated into a projection screen on the displacement laser measurer, the laser penetrates through the display mirror, a laser incident light spot is left on the display mirror, then the laser incident light spot is irradiated onto the reflector, the laser is reflected onto the display mirror by the reflector, and a laser reflection light spot is left, at the moment, the laser incident light spot and the laser reflection light spot are superposed by adjusting the angle of the displacement laser measurer with the calibration mirror, and the normal line of the laser projection screen is adjusted to be superposed with the laser direction angle when the two points are superposed, so that when the structure is used for replacing the traditional displacement laser measurer, the problem of displacement measurement errors can be solved by adjusting the angle of the displacement laser measurer, and the measurement errors caused by the installation orientation errors of the displacement laser measurer are eliminated; meanwhile, the measurement precision and measurement scale are improved, the displacement laser measurement device can be used at a high-altitude measurement point, and can be applied to high-precision measurement of construction of super high-rise building structures and large-scale (such as tunnels, bridges, high slopes, dams and the like) structure construction measurement. The device solves the problem that the high measurement precision of the traditional displacement laser measurer is consumed by azimuth angle errors, solves the problem that a common reference system between the displacement laser measurer and a laser transmitter is difficult to find, solves the problem that the displacement laser measurement errors are amplified along with the measurement distance due to the azimuth error of the measurer, and solves the problem that the measurement range of the displacement laser measurement is small.
Wherein, the penetration point of the laser on the display mirror comprises a laser incident light spot and a laser reflected light spot. When the device is used, the laser transmitter for transmitting laser is arranged on the ground, the displacement laser measurer for measuring deformation is usually arranged on a building wall needing to be measured, and the displacement laser measurer can receive the laser transmitted by the laser transmitter.
Preferably, the quick calibration mechanism for mounting a displacement laser measuring instrument includes an orientation adjustment mechanism provided on an opposite surface of the projection screen or a side surface of the displacement laser measuring instrument, the orientation adjustment mechanism being configured to adjust an angle between the display mirror or the reflecting mirror and the laser light.
The laser is laser emitted by a laser emitter on the ground.
Preferably, the orientation adjusting mechanism comprises an installation base and a detachable ball hinge connecting rod, one end of the ball hinge connecting rod is arranged on the installation base, and the other end of the ball hinge connecting rod is arranged on the displacement laser measurer;
still be provided with the adjustment component on the installation base, through the adjustment component is adjusted the installation base with the angle of display mirror, or adjustment the angle between installation base and the speculum, in order to realize can adjusting the angle between display mirror or speculum and the laser realizes laser on the display mirror penetrates the light spot and the coincidence of laser reflection light spot.
The detachable ball-hinged connecting rod is connected with the displacement laser measurer and the mounting base, so that a structure that the mounting base is separated from the displacement laser measurer is realized, the mounting base can be embedded in advance, the displacement laser measurer is connected with the ball-hinged connecting rod when in use, and then the ball-hinged connecting rod is connected with the mounting base, so that the mounting is convenient and fast; the problems that in the laser measurement of the displacement of the super high-rise structure, the installation environment conditions of the measurer are harsh (the outer wall is high in the air, the suspended position, the space is narrow and the like), and the installation operation is difficult are solved; the displacement laser measuring device and the ball-hinged connecting rod are detached, the displacement laser measuring device is quickly separated from the mounting base, the displacement laser measuring device is prevented from being damaged, the displacement laser measuring device can be repeatedly used, and the problems that the displacement laser measuring device is difficult to detach under the high-altitude condition of a super high-rise, is frequently damaged and affects repeated use are solved.
Preferably, the adjustment member includes a positioning bolt, and the alignment bolt adjusts a length between the mounting base and the displacement laser measuring device, so that the laser incident light spot and the laser reflected light spot on the display mirror can be overlapped.
Preferably, the end face of the mounting base is provided with a supporting block, the supporting block extends to the bottom face of the displacement laser measurer, and the supporting block is used for supporting the displacement laser measurer when the positioning bolt is adjusted.
When using the positioning bolt, because displacement laser measurement ware does not have the strong point, the positioning bolt has shared some effort that supports displacement laser measurement ware, use the required effort of positioning bolt for the partial gravity size that has increased displacement laser measurement ware, difficult smooth and easy adjustment positioning bolt, the supporting shoe of setting provides a strong point for displacement laser measurement ware, be equivalent to the strong point that provides the lever, consequently, the supporting shoe has saved the required effort of using the positioning bolt, convenient the regulation.
Preferably, the quick calibration mechanism for mounting the displacement laser measuring device comprises a plurality of fastening mechanisms, and each fastening mechanism is used for fastening the calibration mirror and the displacement laser measuring device.
Preferably, each of the clasping mechanisms comprises a clasp for connecting the collimating mirror and the displacement laser measurer and a positioning block disposed on the clasp, and all the positioning blocks are disposed on the projection screen when the collimating mirror and the projection screen are installed, so that the collimating mirror and the projection screen are kept horizontal. The fastening mechanism further comprises a locking bolt, and the calibration mirror is fixed on the displacement laser measurer through the locking bolt.
Preferably, the display mirror is a transparent or semitransparent amorphous inorganic nonmetallic material or a high molecular polymer.
Preferably, the display mirror is transparent or translucent glass.
A quick calibration method for mounting a displacement laser measurer applies the quick calibration mechanism for mounting the displacement laser measurer, and comprises the following steps:
step one, fastening a calibration mirror above a projection screen of a displacement laser measurer to enable a positioning block on a fastening piece to be in contact with the projection screen;
secondly, arranging the displacement laser measurer provided with the calibration mirror on the mounting base;
step three, starting a laser emitter for measuring displacement, and adjusting the laser emitter to align with a projection screen of the displacement laser measurer so as to project laser on the projection screen;
adjusting the angle of the displacement laser measurer to enable the laser incident light spot and the laser reflection light spot on the display mirror to be superposed, and fixing the orientation adjusting mechanism;
and step five, detaching the calibration mirror to perform measurement.
The positioning block on the fastening piece is contacted with the projection screen in the first step, and the thickness of the positioning block on the projection screen is the same, so that the reflector and the display mirror arranged on the positioning block are parallel to the projection screen, and in the fourth step, the laser incident light spot and the laser reflected light spot on the display mirror are superposed by adjusting the positioning bolt, namely, the normal line of the laser projection screen is regulated to be superposed with the laser direction angle.
In addition, the method can be used for laying a cushion for subsequent automatic calibration, can realize real-time automatic measurement of construction when automatic positioning is realized subsequently so that a laser incident light spot and a laser reflection light spot are automatically superposed, can improve the real-time performance of construction deformation early warning and prediction, avoids construction safety accidents and exerts social benefits.
Preferably, the step five is further followed by:
and step six, after the measurement is finished, the displacement laser measurer with the ball-hinge connecting rod is detached, and an installation base is left at the measuring point.
Due to the fact that the detachable ball-hinged connecting rod is arranged, after measurement is completed, the positioning bolt, the ball-hinged connecting rod and the displacement laser measurer are repeatedly used, utilization rate is improved, and cost is saved.
Compared with the prior art, the invention has the beneficial effects that:
1. when laser is irradiated into a projection screen on the displacement laser measurer, the laser penetrates through the display mirror, a laser incident light spot is left on the display mirror, then the laser incident light spot is irradiated onto the reflector, the laser is reflected onto the display mirror by the reflector, and a laser reflection light spot is left, at the moment, the laser incident light spot and the laser reflection light spot are superposed by adjusting the angle of the displacement laser measurer with the calibration mirror, and the normal line of the laser projection screen is adjusted to be superposed with the laser direction angle when the two points are superposed, so that when the structure is used for replacing the traditional displacement laser measurer, the problem of displacement measurement errors can be solved by adjusting the angle of the displacement laser measurer, and the measurement errors caused by the installation orientation errors of the displacement laser measurer are eliminated; meanwhile, the measurement precision and measurement scale are improved, the displacement laser measurement device can be used at a high-altitude measurement point, and can be applied to high-precision measurement of construction of super high-rise building structures and large-scale (such as tunnels, bridges, high slopes, dams and the like) structure construction measurement. The device solves the problem that the high measurement precision of the traditional displacement laser measurer is consumed by azimuth angle errors, solves the problem that a common reference system between the displacement laser measurer and a laser transmitter is difficult to find, solves the problem that the displacement laser measurement errors are amplified along with the measurement distance due to the azimuth error of the measurer, and solves the problem that the measurement range of the displacement laser measurement is small.
2. The detachable ball-hinged connecting rod is connected with the displacement laser measurer and the mounting base, so that a structure that the mounting base is separated from the displacement laser measurer is realized, the mounting base can be embedded in advance, the displacement laser measurer is connected with the ball-hinged connecting rod when in use, and then the ball-hinged connecting rod is connected with the mounting base, so that the mounting is convenient and fast; the problems that in the laser measurement of the displacement of the super high-rise structure, the installation environment conditions of the measurer are harsh (the outer wall is high in the air, the suspended position, the space is narrow and the like), and the installation operation is difficult are solved; the displacement laser measuring device and the ball-hinged connecting rod are detached, the displacement laser measuring device is quickly separated from the mounting base, the displacement laser measuring device is prevented from being damaged, the displacement laser measuring device can be repeatedly used, and the problems that the displacement laser measuring device is difficult to detach under the high-altitude condition of a super high-rise, is frequently damaged and affects repeated use are solved.
3. The positioning block on the fastening piece is contacted with the projection screen in the first step, and the thickness of the positioning block on the projection screen is the same, so that the reflector and the display mirror arranged on the positioning block are parallel to the projection screen, and in the fourth step, the laser incident light spot and the laser reflected light spot on the display mirror are superposed by adjusting the positioning bolt, namely, the normal line of the laser projection screen is regulated to be superposed with the laser direction angle.
4. Due to the fact that the detachable ball-hinged connecting rod is arranged, after measurement is completed, the positioning bolt, the ball-hinged connecting rod and the displacement laser measurer are repeatedly used, utilization rate is improved, and cost is saved.
5. When using the positioning bolt, because displacement laser measurement ware does not have the strong point, the positioning bolt has shared some effort that supports displacement laser measurement ware, use the required effort of positioning bolt for the partial gravity size that has increased displacement laser measurement ware, difficult smooth and easy adjustment positioning bolt, the supporting shoe of setting provides a strong point for displacement laser measurement ware, be equivalent to the strong point that provides the lever, consequently, the supporting shoe has saved the required effort of using the positioning bolt, convenient the regulation.
Description of the drawings:
FIG. 1 is a diagram of a displacement laser measuring device;
FIG. 2 is an exploded view of a quick calibration mechanism for displacement laser gauge installation;
FIG. 3 is a three-dimensional structural view of a quick aligning mechanism for mounting a displacement laser measuring device;
FIG. 4 is a schematic view showing the connection between the orientation adjusting mechanism and the displacement laser measuring device;
FIG. 5 is a front view of the clasping mechanism;
FIG. 6 is a side view of the clasping mechanism;
figure 7 is a top view of the clasping mechanism.
The labels in the figure are:
the displacement laser measurer comprises a displacement laser measurer 1, a displacement laser measurer box body 1-1 and a projection screen 1-2;
the device comprises a calibration mirror 2, a reflecting mirror 2-1, a display mirror 2-2, a fastening mechanism 2-3, a fastening piece 2-3-1, a positioning block 2-3-2 and a locking bolt 2-3-3;
the azimuth adjusting mechanism 3 comprises an installation base 3-1 and a supporting block 3-2;
the spherical hinge connecting rod 4, the positioning bolt 5, the laser 6, the laser incident light spot 7, the reflection point 8, the laser reflection light spot 9, the laser emitter 10 and the building wall 11.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
As shown in fig. 1, a suitable scene of the displacement laser measuring device 1 is shown, the displacement laser measuring device 1 is arranged at a measuring point of a building wall 11, a laser emitter 10 is arranged on the ground, and a laser 6 is emitted to the displacement laser measuring device 1 through the laser emitter 10 on the ground for testing.
As shown in fig. 2, an exploded view of a quick calibration mechanism for mounting a displacement laser measuring device 1 is shown, wherein the displacement laser measuring device 1 comprises a projection screen 1-2 and a displacement laser measuring device case 1-1;
the calibration mirror 2 is arranged on the projection screen 1-2, the calibration mirror 2 comprises a display mirror 2-2 and a reflecting mirror 2-1 arranged between the projection screen 1-2 and the display mirror 2-2, and the calibration mirror 2 is arranged on the displacement laser measurer 1 through a fastening mechanism 2-3;
the position adjusting mechanism 3 is arranged on the opposite surface of a projection screen 1-2 on a displacement laser measurer box body 1-1, the position adjusting mechanism 3 comprises an installation base 3-1 and a supporting block 3-2, the installation base 3-1 is used for installing a connecting piece of the installation base and the displacement laser measurer 1 and installing an adjusting component, the installation base 3-1 is installed on a measuring point in advance when in use, the supporting block 3-2 is arranged on the end surface of the installation base 3-1, the supporting block 3-2 extends to the bottom surface of the displacement laser measurer 1, and the supporting block 3-2 is used for supporting the displacement laser measurer 1 when adjusting the positioning bolt 5.
The setting position of the calibration mirror 2 is one surface of the projection screen 1-2, the setting position of the orientation adjusting mechanism 3 can be other three surfaces of the box body 1-1 of the displacement laser measurer, and the mounting surface of the orientation adjusting mechanism 3 is the opposite surface of the projection screen 1-2 in the embodiment.
As shown in fig. 3, a three-dimensional structure diagram of a quick calibration mechanism for mounting a displacement laser measuring device 1, the quick calibration mechanism for mounting a displacement laser measuring device 1 comprises a calibration mirror 2 arranged on the displacement laser measuring device 1, the calibration mirror 2 comprises a reflecting mirror 2-1 for reflecting laser 6 and a display mirror 2-2 for displaying a penetration point of the laser 6, the reflecting mirror 2-1 and the display mirror 2-2 are parallel to each other, and the reflecting mirror 2-1 or the display mirror 2-2 is parallel to a projection screen 1-2 on the displacement laser measuring device 1;
the coincidence of the laser incident light spot 7 and the laser reflected light spot 9 on the display mirror 2-2 can be realized by adjusting the angle of the displacement laser measuring device 1 provided with the calibration mirror 2.
The principle of quick calibration:
when laser 6 is incident on a projection screen 1-2 on a displacement laser measurer 1, the laser 6 passes through a display mirror 2-2, a laser incident light spot 7 is left on the display mirror 2-2, then the laser incident light spot is irradiated on a reflecting mirror 2-1, the laser incident light spot 7 and the laser reflecting light spot 9 are reflected on the display mirror 2-2 by the reflecting mirror 2-1, at the moment, the laser incident light spot 7 and the laser reflecting light spot 9 are coincided by adjusting the angle of the displacement laser measurer 1 with a calibration mirror 2, and the normal line of the projection screen 1-2 is adjusted to be coincided with the direction angle of the laser 6 when the two points are coincided.
Arrangement of azimuth adjusting mechanism 3:
the azimuth adjusting mechanism 3 comprises an installation base 3-1 and a detachable ball hinge connecting rod 4, wherein one end of the ball hinge connecting rod 4 is arranged on the installation base 3-1, and the other end of the ball hinge connecting rod 4 is arranged on the displacement laser measurer 1;
the mounting base 3-1 is further provided with an adjusting component, and the angle between the mounting base 3-1 and the calibration mirror 2 is adjusted through the adjusting component, so that the coincidence of a laser penetration spot 7 and a laser reflection spot 9 on the display mirror 2-2 can be realized.
The adjusting component comprises a positioning bolt 5, and the length of the positioning bolt 5 between the mounting base 3-1 and the displacement laser measurer 1 is adjusted, so that the laser incident light spot 7 and the laser reflected light spot 9 on the display mirror 2-2 can be superposed.
The specific adjustment operation is as follows: the displacement laser measurer 1 rotates around the Y axis by adjusting two positioning bolts 5 on the left side of the center line of the installation surface of the azimuth adjusting mechanism 3 on the displacement laser measurer box body 1-1, so that a laser incident light spot 7 and a laser reflection light spot 9 move along the Y axis; the displacement laser measuring device 1 is enabled to rotate around the X axis by adjusting two positioning bolts 5 on the upper side of the center line of the installation surface of the azimuth adjusting mechanism 3 on the displacement laser measuring device box body 1-1, and the laser incident light spot 7 and the laser reflection light spot 9 are enabled to move along the X axis direction. When adjusting the left and upper positioning bolts 5, the length of the right and lower positioning bolts 5 between the mounting base 3-1 and the displacement laser measuring device 1 should be shortened as much as possible to avoid interfering with the movement of the light spot.
In addition, the adjusting component can also be an air cylinder, and the length of an expansion rod of the air cylinder between the mounting base 3-1 and the displacement laser measurer 1 is electrically controlled to control the superposition of a laser incident light spot 7 and a laser reflection light spot 9 on the display mirror 2-2.
The installation base 3-1 and the displacement laser measurer 1 are of a separated structure:
when the displacement laser measuring device is used, the mounting base 3-1 is embedded at a measuring point in advance, the displacement laser measuring device 1 is connected with the detachable ball-hinge connecting rod 4, and then the ball-hinge connecting rod 4 is connected with the mounting base 3-1, so that the mounting is convenient and fast;
after the displacement laser measurer 1 and the ball-hinged connecting rod 4 are used, the displacement laser measurer 1 is quickly separated from the mounting base 3-1, the displacement laser measurer 1 is prevented from being damaged, and the displacement laser measurer can be repeatedly used.
The display mirror 2-2 is selected from transparent or semitransparent amorphous inorganic nonmetallic materials or high molecular polymers, so that light rays are prevented from being refracted in crystals, and the condition that the laser 6 displays light spots on the display mirror 2-2 can be met. The display mirror 2-2 is preferably a transparent or translucent glass plate.
As shown in fig. 4, a schematic connection relationship between the orientation adjustment mechanism 3 and the displacement laser measuring device 1 is shown, that is, the quick calibration mechanism for mounting the displacement laser measuring device 1 with the calibration mirror 2 removed is adjusted by the adjustment member on the mounting base 3-1, the projection screen 1-2 of the displacement laser measuring device 1 rotates, the laser incident light spot 7 and the laser reflected light spot 9 of the display mirror 2-2 on the calibration mirror 2 coincide, and the calibration mirror 2 is removed, at this time, the laser 6 is perpendicular to the projection screen 1-2, and the problem of displacement measurement error caused by the fact that the normal line of the projection screen 1-2 is difficult to be adjusted to coincide with the laser 6 is solved.
As shown in fig. 5 and 6, the front view and the side view of the fastening mechanism 2-3, the quick alignment mechanism for mounting the displacement laser measuring device 1 comprises a plurality of fastening mechanisms 2-3, each fastening mechanism 2-3 comprises a fastening member 2-3-1 and a positioning block 2-3-2 arranged on the fastening member 2-3-1, the fastening member 2-3-1 is used for connecting the alignment mirror 2 and the displacement laser measuring device 1, and all the positioning blocks 2-3-2 are arranged on the projection screen 1-2 when the quick alignment mechanism for mounting the displacement laser measuring device 1 is mounted, so that the alignment mirror 2 is kept horizontal with the projection screen 1-2.
The displacement laser measurer 1 is square, the fastening pieces 2-3-1 are angle irons, the positioning blocks 2-3-2 are fixed on the angle irons, each fastening mechanism 2-3 is identical, the positioning blocks 2-3-2 of each fastening mechanism 2-3 are identical in position, when the displacement laser measurer is installed, a reflecting mirror 2-1 in the calibration mirror 2 is arranged above the positioning blocks 2-3-2, a projection screen 1-2 is arranged below the positioning blocks 2-3-2, the installed reflecting mirror 2-1 is parallel to the projection screen 1-2, meanwhile, a display mirror 2-2 in the calibration mirror 2 is parallel to the reflecting mirror 2-1, and the projection screen 1-2 is parallel to the display mirror 2-2;
the fastening mechanism 2-3 further comprises a locking bolt 2-3-3, and the calibration mirror 2 is fixed on the displacement laser measurer 1 through the locking bolt 2-3-3.
When the fastening piece 2-3-1 is arranged on the calibration mirror 2 and the displacement laser measurer 1, the locking bolt 2-3-3 is locked, and the fastening mechanism 2-3 can fix the calibration mirror 2 and the displacement laser measurer 1.
As shown in fig. 7, the fastening mechanism 2-3 is a top view of the fastening mechanism 2-3, and two locking bolts 2-3-3 are provided on the fastening member 2-3-1, and the fixing of the angle iron on the displacement laser measuring device 1, that is, the fixing of the calibration mirror 2 and the displacement laser measuring device 1 by the fastening mechanism 2-3, can be completed by the locking bolts 2-3-3.
Example 2
The quick calibration method for mounting the displacement laser measuring instrument 1 applies the quick calibration mechanism for mounting the displacement laser measuring instrument 1 as described in embodiment 1, and comprises the following steps:
step one, fastening a calibration mirror 2 above a projection screen 1-2 of a displacement laser measurer 1 to enable a positioning block 2-3-2 on a fastening piece 2-3-1 to be in contact with the projection screen 1-2;
secondly, arranging the displacement laser measurer 1 provided with the calibration mirror 2 on the installation base 3-1;
step three, starting a laser emitter 10 for measuring displacement, and adjusting the laser emitter 10 to align with a projection screen 1-2 of the displacement laser measurer 1, so that laser 6 is projected near the midpoint of the projection screen 1-2;
fourthly, adjusting the angle of the displacement laser measurer 1 to enable a laser incident light spot 7 and a laser reflection light spot 9 on the display mirror 2-2 to coincide, and fixing the position adjusting mechanism 3 through a locking and positioning bolt 5;
and step five, detaching the calibration mirror 2, and then measuring.
And step six, after the measurement is finished, the displacement laser measurer 1 with the ball-hinge connecting rod 4 is detached, and the mounting base 3-1 is left at the measuring point.
Transferability:
due to the fact that the detachable ball-hinged connecting rod 4 is arranged, after measurement is completed, the positioning bolt 5, the ball-hinged connecting rod 4 and the displacement laser measurer 1 are repeatedly used, utilization rate is improved, and cost is saved.
Horizontal arrangement of the collimating mirror 2 and the projection screen 1-2:
the positioning block 2-3-2 on the fastening piece 2-3-1 is contacted with the projection screen 1-2, and the positioning block 2-3-2 on the projection screen 1-2 is the same, namely the thickness is the same, so the reflecting mirror 2-1 and the display mirror 2-2 arranged on the positioning block 2-3-2 are parallel to the projection screen 1-2, and the laser incident light spot 7 and the laser reflected light spot 9 on the display mirror 2-2 are coincided by adjusting the positioning bolt 5, namely the normal of the laser projection screen 1-2 is adjusted to coincide with the direction angle of the laser 6.
Automatic calibration:
when the automatic positioning can be realized subsequently to ensure that the laser incident light spot 7 and the laser reflection light spot 9 are automatically superposed, the real-time automatic measurement of construction can be realized, the real-time performance of construction deformation early warning and prediction can be improved, construction safety accidents are avoided, and social benefits are brought into play.
Claims (9)
1. A quick calibration mechanism for mounting a displacement laser measurer is characterized by comprising a calibration mirror (2) arranged on the displacement laser measurer (1), wherein the calibration mirror (2) comprises a reflecting mirror (2-1) for reflecting laser (6) and a display mirror (2-2) for displaying a penetration point of the laser (6), the reflecting mirror (2-1) and the display mirror (2-2) are parallel to each other, and the reflecting mirror (2-1) or the display mirror (2-2) is parallel to a projection screen (1-2) on the displacement laser measurer (1);
the device also comprises an orientation adjusting mechanism (3), wherein the orientation adjusting mechanism (3) is arranged on the opposite surface of the projection screen (1-2) on the displacement laser measurer (1) or on the side surface of the displacement laser measurer (1), and the orientation adjusting mechanism (3) is used for adjusting the angle between the display mirror (2-2) or the reflecting mirror (2-1) and the laser (6);
the azimuth adjusting mechanism (3) comprises an installation base (3-1) and a detachable ball hinge connecting rod (4), one end of the ball hinge connecting rod (4) is arranged on the installation base (3-1), and the other end of the ball hinge connecting rod is arranged on the displacement laser measurer (1).
2. The quick calibration mechanism for mounting a displacement laser measuring device according to claim 1, wherein the mounting base (3-1) is further provided with an adjusting member, and the angle between the mounting base (3-1) and the display mirror (2-2) or the angle between the mounting base (3-1) and the reflecting mirror (2-1) is adjusted by the adjusting member.
3. The quick calibration mechanism for mounting a displacement laser measuring device according to claim 2, wherein the adjusting member comprises a positioning bolt (5), and the alignment of the laser incident light spot (7) and the laser reflected light spot (9) on the display mirror (2-2) can be realized by adjusting the length of the positioning bolt (5) between the mounting base (3-1) and the displacement laser measuring device (1).
4. The quick calibration mechanism for mounting a displacement laser measuring device according to claim 3, wherein a support block (3-2) is disposed on an end face of the mounting base (3-1), the support block (3-2) extends to a bottom face of the displacement laser measuring device (1), and the support block (3-2) is used for supporting the displacement laser measuring device (1) when the positioning bolt (5) is adjusted.
5. Quick calibration mechanism for the installation of displacement laser gauges according to claim 4, characterized by comprising a plurality of clasping mechanisms (2-3), each clasping mechanism (2-3) being used to clasp the calibration mirror (2) and the displacement laser gauge (1).
6. The quick calibration mechanism for the installation of displacement laser measuring instruments according to claim 5, characterized in that each fastening mechanism (2-3) comprises a fastening member (2-3-1) and a positioning block (2-3-2) arranged on the fastening member (2-3-1), the fastening member (2-3-1) is used for connecting the calibration mirror (2) and the displacement laser measuring instrument (1), and all the positioning blocks (2-3-2) are arranged on the projection screen (1-2) when the calibration mirror (2) is horizontally kept with the projection screen (1-2);
the fastening mechanism (2-3) further comprises a locking bolt (2-3-3), and the calibration mirror (2) is fixed on the displacement laser measurer (1) through the locking bolt (2-3-3).
7. The quick calibration mechanism for mounting a displacement laser measuring device according to any one of claims 1 to 6, wherein the display mirror (2-2) is made of a transparent or translucent amorphous inorganic non-metallic material or a high molecular polymer.
8. A quick calibration method for mounting a displacement laser measuring instrument, which is characterized in that the quick calibration mechanism for mounting the displacement laser measuring instrument as claimed in any one of claims 1 to 7 is applied, and the method comprises the following steps:
step one, fastening a calibration mirror (2) above a projection screen (1-2) of a displacement laser measurer (1) to enable a positioning block (2-3-2) on a fastening piece (2-3-1) to be in contact with the projection screen (1-2);
secondly, arranging the displacement laser measurer (1) provided with the calibration mirror (2) on the mounting base (3-1);
step three, starting a laser emitter (10) for measuring displacement, adjusting the laser emitter (10) to align with a projection screen (1-2) of the displacement laser measurer (1), and enabling laser (6) to be projected on the projection screen (1-2);
fourthly, adjusting the angle of the displacement laser measurer (1) to enable a laser incident light spot (7) on the display mirror (2-2) to be superposed with a laser reflection light spot (9), and fixing the azimuth adjusting mechanism (3);
and step five, detaching the calibration mirror (2) to perform measurement.
9. The method for quickly calibrating the installation of a displacement laser measuring device according to claim 8, wherein the fifth step is followed by the following steps:
and step six, after the measurement is finished, the displacement laser measurer (1) with the ball-hinged connecting rod (4) is detached, and the mounting base (3-1) is left at the measuring point.
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